Home Effect of berrycactus fruit (Myrtillocactus geometrizans) on glutamate, glutamine, and GABA levels in the frontal cortex of rats fed with a high-fat diet
Article Open Access

Effect of berrycactus fruit (Myrtillocactus geometrizans) on glutamate, glutamine, and GABA levels in the frontal cortex of rats fed with a high-fat diet

  • Cuauhtémoc Sandoval-Salazar EMAIL logo , Sandra Neli Jiménez-García , Vicente Beltrán-Campos , Luz Elvia Vera-Becerra and Carlos Alberto Núñez-Colín
Published/Copyright: January 24, 2023

Abstract

In addition to the known metabolic alterations, obesity has consequences at the brain level, driving imbalance in neurotransmitters such as glutamate (Glu), glutamine (Gln), and gamma-aminobutyric acid (GABA). The consumption of fruits with antioxidant properties, such as the berrycactus Myrtillocactus geometrizans, could have beneficial effects in such an imbalance. The study objective was to evaluate frontal cortex neurotransmitter levels and weight changes in rats fed with a high-fat diet (HFD) and MG. To achieve that, five groups of Wistar rats received different diets for 24 weeks: standard diet (SDt), HFD, HFD + MG extract 150 mg (HMg150), HFD + MG extract 300 mg (HMg300), and HFD + MG extract 450 mg (HMg450); rats received MG extract for the last 4 weeks. Weight and food intake were recorded every week, and also neurotransmitter levels were quantified using high-performance liquid chromatography. Groups fed with HFDs had increased Glu and Gln levels, decreased GABA, and also gained more weight compared to the SDt group; MG extract of 450 mg decreased Glu levels. Concentrations of 300 and 450 mg of MG extract decreased weight compared to the HFD and HMg150 groups. This study reports that HFDs have an impact on neurotransmitter levels and weight, MG extract showed a reduction in Glu concentration and weight.

1 Introduction

Obesity is a chronic metabolic condition that is associated with the development of cardiovascular diseases and metabolic disorders such as type 2 diabetes mellitus, dyslipidemia, and hypertension [1]. The origin of this condition is influenced by eating habits and genetic and neurobiological factors; evidence shows that obesity is associated with increased vulnerability to brain damage [2] due to the consumption of high-fat diets (HFDs) [3].

The accumulation of visceral adipose tissue can affect the metabolism of the neurons and change the cycle and synthesis of the neurotransmitters glutamate (Glu), gamma-aminobutyric acid (GABA), and glutamine (Gln) (Glu/GABA-Gln). In this cycle, neurons need to release Glu and GABA, then those join the postsynaptic cells and after recapture with the participation of astrocytes, which in turn release Gln; it will be necessary for the synthesis of new neurotransmitters in the presynaptic neurons [4]. For this process, adequate levels of glucose are needed that are obtained from the bloodstream through astrocytes [5]; however, due to the consumption of high saturated fat diets, it seems that the levels of neurotransmitters are modified [6]. In this regard, it has been shown as a metabolic decrease in the glycolytic activity in the Krebs cycle in the brain, with changes in the levels of neurotransmitters such as Glu and Gln [7]. In addition, in earlier work, we found that the consumption of a HFD decreases GABA levels [8] and alters the functionality of the enzyme glutamic acid decarboxylase and Gln synthase in the hippocampus and cortex. These modifications could be due to lower glucose levels that affect the Krebs cycle and its intermediate products such as α-ketoglutarate [9], as well as the oxidative stress produced by HFDs.

Specialist recommend consumption of functional and accessible foods, including Berries. These fruits provide few calories, fiber, and antioxidant compounds, such as vitamins A and C, flavonoids, and tannins, and act at the brain level decreasing oxidative stress and reducing proinflammatory cytokines [10].

Mexico occupies the first place worldwide in overweight and obesity, which have been related, among other factors, to the consumption of foods high in saturated fats. The consumption of foods rich in antioxidants could help to prevent oxidative damage in proteins, lipids, carbohydrates, and deoxyribonucleic acid caused by the intake of foods high in saturated fat. Intake of phenolic compounds may reduce oxidative stress caused by chronic diseases [11], food products such as red wine has shown a protective effect, increasing the survival of Saccharomyces cerevisiae yeast cells, stressed with H2O2 [12]. Other functional foods with antioxidant activity due to the phenolic compounds and anthocyanins are strawberries [13] and Myrtillocactus geometrizans [Garambullo or berrycactus fruit] (MG), which has polyphenols and flavonoids with antioxidant capacity [14]. MG has carbohydrates, proteins, macronutrients, such as N and K, micronutrients such as Fe, Zn, and Mn, and also polyphenols and flavonoids [15].

In this regard, MG decreases glucose and triglyceride levels, as well as reduce oxidative stress by increasing the enzymatic activity of glutathione among diabetic mice [16]. Similarly, it has been found that in cultures of cancer cell lines, doses of 100 mg/kg of MG inhibits inflammation and reduces the viability of cancer cells [17], and shows apoptogenic effects in vitro [18]. However, the MG effect in the brain is unclear.

The aim of the present study was to evaluate frontal cortex neurotransmitter levels and weight changes in rats fed with a HFD and MG.

2 Methods

2.1 Experimental animals

Twenty-five 1 month old male Wistar rats (100 g weight) were kept in a polypropylene animal cage in a temperature-controlled environment (22 ± 2°C), and under a light–dark cycle set at 12:12 h inside an animal facility at the University of Guanajuato.

  1. Ethical approval: The research related to animal use has been complied with all the relevant national regulations and institutional policies for the care and use of animals and has been approved by Bioethics Committee, Campus Celaya-Salvatierra at the University of Guanajuato and the National Research Council Guide for the Care and Use of Laboratory Animals and the Official Mexican Regulation for Experimentation in Animals (NOM-062-ZOO-1999).

2.2 Treatment

Rats were acclimatized to their environment for 1 week and randomized into five groups (n = 5), to receive the following treatments: (1) Standard diet group (SDt), (Purina Rodent Chow; Purina Mexico: protein 23%, fat 4.5%, and carbohydrates 72.5%), (2) HFD group, (Purina Chow; Purina Mexico: protein 12.1%, fat 20% + 20% lard added, and carbohydrates 21.3%), (3) HFD + MG extract 150 mg group (HMg150 mg), (4) HFD + MG extract 300 mg group (HMg300 mg), and (5) HFD + MG extract 450 mg group (HMg450 mg). The MG fruits were washed in clean water and were maintained for 24 h at −50°C and 0.012 atm in a vacuum system, then the fruits were weighed to know the product left after the drying process. For phenol extraction, 25 mg of dry samples were taken, and 2.5 mL of methanol was added to each sample, which were then kept away from light and were shaken for 24 h. The sediment formed at the bottom was then centrifuged at 5,000 rpm for 10 min at 4°C, and the supernatant was removed. The total phenol content was determined by the Folin–Ciocalteu spectrophotometric method modified for use in 96-well microplates. In quantification, an aliquot of the methanolic extract (4 µL) was mixed, 250 µL was mixed in the Folin–Ciocalteu reagent (1N), 1,250 µL of Na2CO3 (20%) were added and kept in the dark for 2 h at room temperature. Subsequently, absorbance at 760 nm was measured in a spectrophotometer (Multiskan GO). The results were expressed in mg gallic acid equivalents/g dry weight. The concentration of total phenols in the berrycactus juice is 142 mg of gallic acid equivalents/100 g [19]. The groups had access to water and chow ad libitum. All the groups were fed for 24 weeks, and HMg150, HMg300, and HMg450 groups received MG extracts mixed in water for the last 4 weeks by intragastric administration. Food intake and body weight were recorded each week for the 24 weeks.

2.3 Collection of tissue samples

After intervention, the rats were anesthetized with intraperitoneal sodium thiopental (50mg/kg) to obtain blood and tissues. Immediately, the frontal cortex was removed, dissected on ice-cold glass, and stored in microtubes at −80°C until analysis.

2.4 Neurotransmitters level measurements

The Glu, Gln, and GABA levels were quantified using high-performance liquid chromatography (HPLC) equipped with a reverse-phase XTerra® C18 column (5 μm, 3 mm × 100 mm) and Waters® 515 pump, O-phthaldialdehyde (OPA) derivatization and electrochemical detection using a BASS-LC 4C system coupled to an amperometric detector. Briefly, frontal cortex (n = 5 per group) was defrosted slowly on ice and mixed with cold solution containing equal proportions of methanol and phosphate buffer saline (PBS) of 0.1M and pH 7.4 to prepare homogenates by ultrasonication with a final concentration of 200 mg tissue/mL. Afterward, the homogenates were centrifuged at 13,500 rpm for 20 min at 4°C and the supernatant was recovered and filtered. Standard solutions of the amino acids with concentrations of 5, 10, 25, 50, 100, or 200 μmol/L in PBS were used to prepare a calibration curve. Amino acids were subjected to a derivatization reaction with OPA reagent according to a previous protocol. Then, 10 μL of standard solution or sample (previously diluted 1:2) was mixed with 40 μL of OPA reagent. After 2 min of reaction, the sample was injected into the HPLC apparatus equipped with a reverse-phase Xterra® C18 column (5 μm, 3 Å ∼ 100 mm) and Waters® 515 pump. The configuration consisted of a 0.45 mL/min flow, 15,000 psi pressure, and redox potential of 0.642 V. Amino acids were separated using a gradient program and three mobile phases of methanol 20% (A) and 80% (B) in phosphate sodium (NaH2PO4) buffer of 0.05 M and pH 5.5. The area under the curve for the standards and samples was determined and used to calculate the concentrations of GABA, Gln, and Glu which were normalized to μmoles/g of wet tissue. All the measurements were conducted at room temperature [7].

2.5 Statistical analysis

For the statistical analyses, we used Statistics for Windows 8 (StatSoft, Inc.). Because the lack of homoscedasticity of the data can generate bias in the parametric analysis by ANOVA (analysis of variance), Kruskal–Wallis test was applied followed by a Z-based post hoc test for multiple comparisons [20], expressing the results as the mean value ± standard error of the mean (SEM). The significance level was set at P ≤ 0.05.

3 Results

3.1 Neurotransmitter levels modification on the frontal cortex

Table 1 shows the changes in the levels of neurotransmitters Gln, Glu, and GABA in the frontal cortex of rats fed with a HFD. We do not find differences in the Gln concentration among the HFD group compared to the SDt group. However, we saw significant increases (P ≤ 0.05) between the groups treated with MG, HMg150, HMg300, and HMg450, when compared to the Gln levels of the SDt group.

Table 1

Effect of HFD on neurotransmitters levels

Groups Frontal cortex neurotransmitter levels (mmol/g/tissue)
Gln Glu GABA
SD 563.565a,b 772.356b 325.910a
HFD 436.194b 1264.732a 279.643a,b
HMg150 592.251a 1288.778a 224.775a,b
HMg300 591.939a,b 1078.295a,b 193.087b
HMg450 608.813a,b 925.899a,b 245.900a,b

SDt (standard diet); HFD (high fat diet); HMg150 (HFD + MG extract); HMg300 (HFD + MG extract), and HMg450 (HFD + MG extract). Data are reported as the mean value ± SEM. In the columns, values with same letter means no significant differences by Kruskal–Wallis and Z-based post hoc rank test at P ≤ 0.05.

About Glu, there was a significant increase (P ≤ 0.01) in its concentration on the four groups treated with the HFD, HFD group, HMg150, HMg300, and HMg450, compared to the SDt group. For this neurotransmitter, the MG concentration of 450 mg was able to decrease Glu levels (P ≤ 0.01) compared to the HFD and HMg150 groups. The concentration of GABA levels, in the groups that received HFD, HMg150, HMg300, and HMg450, had a significant decrease (P ≤ 0.05) compared to the SDt group. Similarly, a decrease was seen in GABA in the HMg300 group compared to the HFD group (P ≤ 0.05), as well as differences between the HMg150 and HMg300 groups (P ≤ 0.05), and the HMg300 and HMg450 groups (P ≤ 0.05).

3.2 Body weight gain during HFD exposure and MG treatment

The rats were weighed before the beginning of the treatment, and no significant differences were seen between the groups (P = 0.075), Figure 1. At the end of the treatment, all the groups had a significant increase in body weight compared with the baseline weight (P = 0.001). No effects on weight were noted with the MG treatment among HMg150 group. However, the HMg300 (P = 0.006) and HMg450 (P = 0.049) groups significantly decreased in weight compared to the HFD group.

Figure 1 
                  Effect of MG on body weight gain, SDt, HFD, HMg150, HMg300, and HMg450. Data are reported as the mean value ± SEM. In the bars, values with the same letter means no significant differences by Kruskal–Wallis and Z-based post hoc rank test at P ≤ 0.05.
Figure 1

Effect of MG on body weight gain, SDt, HFD, HMg150, HMg300, and HMg450. Data are reported as the mean value ± SEM. In the bars, values with the same letter means no significant differences by Kruskal–Wallis and Z-based post hoc rank test at P ≤ 0.05.

In addition, we evaluated dietary intake we; in this regard, any extracts concentration had effect on changing dietary intake. However, dietary intake was lower (30%) in all the groups with a HFD compared to the SDt (Figure 2).

Figure 2 
                  Effect of HFD on food intake during treatment, SDt, HFD, HMg150, HMg300, and HMg450. Data are given as the mean value ± SEM.
Figure 2

Effect of HFD on food intake during treatment, SDt, HFD, HMg150, HMg300, and HMg450. Data are given as the mean value ± SEM.

4 Discussion

In this study, we found that the administration of HFD for 24 weeks increased the levels of the Gln and Glu and decreased the concentration of GABA in the frontal cortex. The MG extract of 450 mg was able to reduce the concentration of Glu levels and the weight of the rats fed with HFDs.

It has been reported that inadequate nutrition not only influences the development of overweight and obesity, but also has an effect on brain processes that involve neuronal communication through neurotransmitters, mood, and cognition [21]. Specifically, Western diets have high concentrations of saturated fats, and those diets produce inflammation, affecting cognitive processes [22]. In the present study, HFDs and three concentrations of MG extract were used, and it was found that HFDs increased Gln and Glu levels in the frontal cortex but decreased the concentration of GABA. Other reports have shown that the consumption of HFD in rats decreases the concentration of serotonin, while it increases dopamine and Glu levels [6].

4.1 Berrycactus and Glu levels in the frontal cortex

In the brain, the synthesis of neurotransmitters takes place between the interaction of neurons and glial cells such as astrocytes, which play an essential role in the Glu/GABA-Gln cycle. This highly regulated process requires the participation of transporters for each neurotransmitter [4]. For this, the consumption of a balanced and sufficient diet is essential, otherwise, HFDs increase ammonium levels and mitochondria metabolism, and then the Krebs cycle and the regulation of neurotransmitter synthesis can be affected [23]. The increase in Glu found in the groups treated with HFDs coincides with a work carried out in 2020, in which, rats fed with HFD for 4 weeks had increased levels of Glu and dopamine [6]. Similarly, the administration of western diet for 24 weeks altered the glutamatergic functionality of medium dorsolateral spiny neurons, with attribution to a deficiency in its recapture [24]. Also, prolonged consumption of HFDs induces a decrease in vesicular transporters to Glu [24], increases Glu metabolism, affects the Gln-Glu cycle and increases other molecules such as aspartate and choline [25]. However, in the present study, the concentration of 450 mg of MG extract decreased Glu levels, the consumption of this fruit could have beneficial effects and help to counteract the adverse effects of HFDs. This may be due to its polyphenolic and flavonoid antioxidant components [15]. The increase in Glu levels could produce excitotoxicity [26]) and so affect the synthesis processes of other neurotransmitters such as Gln and GABA, as well as various cognitive processes.

4.2 HFD modifies the Gln concentration

There is a direct interaction between Glu and Gln in the brain, once Glu is released at the synapse, it is rapidly taken up by astrocytes and converted to Gln by Gln synthase (GS) allowing its rapid removal as part of the Glu-Gln cycle [26]. However, deficiency in its reuptake is attributed to the loss or alteration of the function of the astrocytic transporter GLT-1. The presence of Glu in the synaptic cleft is kept for a longer time and so a greater stimulation is produced in the post-synaptic neuron [24]. Therefore, in the present investigation, the increase in Glu found in the groups fed with HFD may be due to a deficiency in its recapture and degradation by astrocytic GS. This gives importance to astrocytes in protecting ammonia toxicity neurons from ammonia toxicity, Glu excitotoxicity, and its GS-dependent conversion to Gln, as well as due to a deficiency in astrocytic GS, which is altered by the increase in ammonia produced by the chronic consumption of HFDs [26]. It was found that MG did not have an effect to reduce this neurotransmitter, this could be due to an imbalance in the Gln/Glu cycle ratio, given by high Glu levels; therefore, nutrition interventions, as is treatment with MG, is needed for longer, since HFDs for extended periods of time generate neuroinflammation. In this regard, a study found that an increase in the microglial activity of obese rats, after treatment with sour cherries for 17 weeks, led to a reduction in the activity of the glial fibrillary acidic protein [27].

4.3 Saturated fats consumption decreases GABA levels

Under normal conditions, the synthesis of GABA through GAD requires its precursor Glu. However, earlier studies have seen that the consumption of HFD decreases its levels in structures such as the frontal cortex and hippocampus [28]. These alterations could be due to oxidative stress and neuroinflammation produced by the consumption of HFDs [3]. In the present study, we found that HFDs decreased GABA levels in the frontal cortex. To keep this neurotransmitter at adequate levels, a balance in the Glu/GABA/Gln cycle is needed [4], and for this, the quality of the diet could be a key factor, since the consumption of HFDs changes both, the levels of neurotransmitters and the vesicular transporters that take part in the synaptic function [24]. Although not significant, MG 450 mg extract tended to raise GABA levels compared to the other groups, in other investigations conducted by our group, we evaluated the use of strawberries irradiated with ultraviolet light for 12 weeks, and we found that strawberries increased GABA levels in the frontal cortex [8]. Therefore, treatment time may be a key factor in restoring cellular homeostasis in the brain using antioxidant treatments such as the MG. Therefore, this could say that the antioxidant components of the berrycactus exert effect at the cellular level; however, we did not characterize or evaluate polyphenols and antioxidants separately. Thus, nutrition is a crucial factor in keeping the brain in best condition. For example, rats fed with rice enriched with GABA show decreases in the levels of cell damage produced by oxidative stress generated by HFDs [29].

4.4 Antioxidant fruits and overweight regulation

Similarly, in this study, groups treated with HFD showed greater weight gain compared to the SDt group. In this regard, HFD not only increases body fat mass [30] but also reduces synaptic plasticity in the hippocampus and cerebral cortex. In the present study, the groups treated with concentrations of 300 and 450 mg of MG decreased in weight. This could be due to that MG has 68% carbohydrates in its nutritional composition [15], and therefore, a rapid change in flavor could produce an effect and reduce food consumption favoring weight loss [30]. Food intake involves processes as appetite, motivation, energy requirement, as well as the availability, exposure, and quality of food [31]. The present study found that the HFD groups consumed less food but managed to gain weight, fat is an important contributor to total energy intake and satiating properties that could potentially reduce energy intake [32]. It has also been seen that the consumption of berries may not affect weight loss; those results are not conclusive and, although seems that antioxidant compounds such as flavonoids have benefits in insulin resistance, dyslipidemia, and hypertension, it would be necessary for more studies to find its direct effects on weight [27].

Our results show that the HFDs change the concentration of neurotransmitters by increasing the levels of Glu and Gln and decreasing those of GABA; interestingly, the MG extract reduces Glu levels. These outcomes suggest that the consumption of this berrycactus could be a strategy to regulate neurotransmitters and improve brain processes affected by the consumption of HFDs.

Acknowledgments

We are grateful to the University of Guanajuato, Campus Celaya-Salvatierra for its support of this research project (CIDSC-3250611).

  1. Funding information: The work was supported by own resources of the University of Guanajuato.

  2. Author contributions: C.S.S. and C.A.N.S. designed the project and procedures; C.S.S., S.N.J.G., and V.B.C. carried out the project; C.S.S. and C.A.N.S. performed the data analyses; C.S.S. and L.E.V.B. prepared the manuscript. The authors applied the SDC approach for the sequence for authors.

  3. Conflict of interest: Authors state no conflict of interest.

  4. Data availability statement: The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

References

[1] Bluher M. Obesity: Global epidemiology and pathogenesis. Nat Rev Endocrinol. 2019;15(5):288–98.10.1038/s41574-019-0176-8Search in Google Scholar PubMed

[2] Salas-Venegas V, Flores-Torres RP, Rodríguez-Cortés YM, Rodríguez-Retana D, Ramírez-Carreto RJ, Concepción-Carrillo LE, et al. The obese brain: Mechanisms of systemic and local inflammation, and interventions to reverse the cognitive deficit. Front Integr Neurosci. 2022;16:1–19.10.3389/fnint.2022.798995Search in Google Scholar PubMed PubMed Central

[3] Tan BL, Norhaizan ME. Effect of high-fat diets on oxidative stress, cellular inflammatory response and cognitive function. Nutrients. 2019;11(11):22.10.3390/nu11112579Search in Google Scholar PubMed PubMed Central

[4] Bak LK, Schousboe A, Waagepetersen HS. The glutamate/GABA-glutamine cycle: Aspects of transport, neurotransmitter homeostasis and ammonia transfer. J Neurochem. 2006;98(3):641–53.10.1111/j.1471-4159.2006.03913.xSearch in Google Scholar PubMed

[5] Dienel GA. Brain glucose metabolism: Integration of energetics with function. Physiol Rev. 2019;99(1):949–1045.10.1152/physrev.00062.2017Search in Google Scholar PubMed

[6] Labban RSM, Alfawaz H, Almnaizel AT, Hassan WM, Bhat RS, Moubayed NM, et al. High-fat diet-induced obesity and impairment of brain neurotransmitter pool. Transl Neurosci. 2020;11(1):147–60.10.1515/tnsci-2020-0099Search in Google Scholar PubMed PubMed Central

[7] Martínez-Orozco H, Reyes-Castro LA, Lomas-Soria C, Sandoval- Salazar C, Ramírez-Emiliano J, Díaz-Cintra MC, et al. High-fat and combined high-fat-high-fructose diets impair episodic-like memory and decrease glutamate and glutamine in the hippocampus of adult mice. Nutr Neurosci. 2022;11:2479–89.10.1080/1028415X.2021.1977452Search in Google Scholar PubMed

[8] Sandoval-Salazar C, Oviedo-Solís CI, Lozoya-Gloria E, Aguilar-Zavala H, Solís-Ortiz MS, Pérez-Vázquez V, et al. Strawberry intake ameliorates oxidative stress and decreases GABA levels induced by high-fat diet in frontal cortex of rats. Antioxidants. 2019;8(3):9.10.3390/antiox8030070Search in Google Scholar PubMed PubMed Central

[9] Sickmann HM, Waagepetersen HS, Schousboe A, Benie AJ, Bouman SD. Obesity and type 2 diabetes in rats are associated with altered brain glycogen and amino-acid homeostasis. J Cereb Blood Flow Metab. 2010;30(8):1527–37.10.1038/jcbfm.2010.61Search in Google Scholar PubMed PubMed Central

[10] Bonyadi N, Dolatkhah N, Salekzamani Y, Hashemian M. Effect of berry-based supplements and foods on cognitive function: A systematic review. Sci Rep. 2022;12(1):14.10.1038/s41598-022-07302-4Search in Google Scholar PubMed PubMed Central

[11] Pejin B, Bogdanovic-Pristov J, Pejin I, Sabovljevic M. Potential antioxidant activity of the moss Bryum moravicum. Nat Prod Res. 2013;27(10):900–2.10.1080/14786419.2012.665915Search in Google Scholar PubMed

[12] Đorđević NO, Todorović N, Novaković IT, Pezo LL, Pejin B, Maraš V, et al. Antioxidant activity of selected polyphenolics in yeast cells: The case study of montenegrin merlot wine. Molecules. 2018;23(8):14.10.3390/molecules23081971Search in Google Scholar PubMed PubMed Central

[13] Simonovic M, Ostojic S, Micic D, Pesakovic M, Pejin B. Low-energy strawberry fruits of joly cultivar, the first step towards a novel, food-based solution for the obese population. Appl Sci (Basel). 2019;9(23):8.10.3390/app9235140Search in Google Scholar

[14] Guzman-Maldonado SH, Herrera-Hernandez G, Hernandez-Lopez D, Reynoso-Camacho R, Guzman-Tovar A, Vaillant F, et al. Physicochemical, nutritional and functional characteristics of two underutilised fruit cactus species (Myrtillocactus) produced in central Mexico. Food Chem. 2010;121(2):381–6.10.1016/j.foodchem.2009.12.039Search in Google Scholar

[15] Pinedo-Espinoza JM, Gutierrez-Tlahque J, Santiago-Saenz YO, Aguirre-Mancilla CL, Reyes-Fuentes M, Lopez-Palestina CU. Nutritional composition, bioactive compounds and antioxidant activity of wild edible flowers consumed in semiarid regions of Mexico. Plant Food Hum Nutr. 2020;75(3):413–9.10.1007/s11130-020-00822-2Search in Google Scholar PubMed

[16] Reynoso-Camacho R, Martinez-Samayoa P, Ramos-Gomez M, Guzman H, Salgado LM. Antidiabetic and renal protective properties of berrycactus fruit (Myrtillocactus geometrizans). J Med Food. 2015;18(5):565–71.10.1089/jmf.2013.0164Search in Google Scholar PubMed

[17] Salazar JR, Martínez-Vazquez M, Cespedes CL, Ramírez-Apan T, Nieto-Camacho A, Rodríguez-Silverio J, et al. Anti-inflammatory and cytotoxic activities of chichipegenin, peniocerol, and macdougallin isolated from Myrtillocactus geometrizans (Mart. ex Pfeiff.) Con. Z Naturforsch C J Biosci. 2011;66(1–2):24–30.10.1515/znc-2011-1-204Search in Google Scholar

[18] Bolanos-Carrillo MA, Ventura-Gallegos JL, Saldivar-Jimenez AD, Zentella-Dehesa A, Martinez-Vazquez M. Effect of sterols isolated from Myrtillocactus geometrizans on growth inhibition of colon and breast cancer cells. Evid-based Complement Altern Med. 2015;2015:9.10.1155/2015/589350Search in Google Scholar PubMed PubMed Central

[19] Guzman-Maldonado SH, Herrera-Hernandez G, Hernandez-Lopez D, Reynoso-Camacho R, Guzman-Tovar A, Vaillant F, et al. Physicochemical, nutritional and functional characteristics of two underutilised fruit cactus species (Myrtillocactus) produced in central Mexico. Food Chem. 2020;121(2):381–6.10.1016/j.foodchem.2009.12.039Search in Google Scholar

[20] Núñez-Colín CA. Nonparametric analysis of variance: A point of view in favour to use it. Acta Agric Pec. 2018;4(3):69–79.Search in Google Scholar

[21] Bremner JD, Moazzami K, Wittbrodt MT, Nye JA, Lima BB, Gillespie CF, et al. Diet, stress and mental health. Nutrients. 2020;12(8):27.10.3390/nu12082428Search in Google Scholar PubMed PubMed Central

[22] Abbott KN, Arnott CK, Westbrook RF, Tran DMD. The effect of high fat, high sugar, and combined high fat-high sugar diets on spatial learning and memory in rodents: A meta-analysis. Neurosci Biobehav Rev. 2019;107:399–421.10.1016/j.neubiorev.2019.08.010Search in Google Scholar PubMed

[23] Norenberg MD, Rao KVR, Jayakumar AR. Signaling factors in the mechanism of ammonia neurotoxicity. Metab Brain Dis. 2009;24(1):103–17.10.1007/s11011-008-9113-6Search in Google Scholar PubMed

[24] Fritz BM, Munoz B, Yin F, Bauchle C, Atwood BK. A high-fat, high-sugar ‘Western’ diet alters dorsal striatal glutamate, opioid, and dopamine transmission in mice. Neuroscience. 2018;372:1–15.10.1016/j.neuroscience.2017.12.036Search in Google Scholar PubMed PubMed Central

[25] Lim S-I, Song K-H, Yoo C-H, Woo D-C, Choe B-Y. High-fat diet-induced hyperglutamatergic activation of the hippocampus in mice: A proton magnetic resonance spectroscopy study at 9.4T. Neurochem Int. 2018;114:10–7.10.1016/j.neuint.2017.12.007Search in Google Scholar PubMed

[26] Raider K, Ma D, Harris JL, Fuentes I, Rogers RS, Wheatley JL, et al. A high fat diet alters metabolic and bioenergetic function in the brain: A magnetic resonance spectroscopy study. Neurochem Int. 2016;97:172–80.10.1016/j.neuint.2016.04.008Search in Google Scholar PubMed PubMed Central

[27] Micioni Di Bonaventura MV, Martinelli I, Moruzzi M, Micioni Di Bonaventura E, Giusepponi ME, Polidori C, et al. Brain alterations in high fat diet induced obesity: Effects of tart cherry seeds and juice. Nutrients. 2020;12(3):623.10.3390/nu12030623Search in Google Scholar PubMed PubMed Central

[28] Sandoval-Salazar C, Ramirez-Emiliano J, Trejo-Bahena A, Oviedo-Solis CI, Solis-Ortiz MS. A high-fat diet decreases GABA concentration in the frontal cortex and hippocampus of rats. Biol Res. 2016;49:6.10.1186/s40659-016-0075-6Search in Google Scholar PubMed PubMed Central

[29] Lamothe LM, Le KA, Abou Samra R, Roger O, Green H, Mace K. The scientific basis for healthful carbohydrate profile. Crit Rev Food Sci Nutr. 2019;59(7):1058–70.10.1080/10408398.2017.1392287Search in Google Scholar PubMed

[30] Deshpande SSS, Nemani H, Balasinor NH. High fat diet-induced and genetically inherited obesity differentially alters DNA demethylation pathways in the germline of adult male rats. Reprod Biol. 2021;21(3):10.10.1016/j.repbio.2021.100532Search in Google Scholar PubMed

[31] Romani-Perez M, Bullich-Vilarrubias C, Lopez-Almela I, Liebana-Garcia R, Olivares M, Sanz Y. The microbiota and the gut-brain axis in controlling food intake and energy homeostasis. Int J Mol Sci. 2021;22(11):35.10.3390/ijms22115830Search in Google Scholar PubMed PubMed Central

[32] Garman TS, Setlow B, Orsini CA. Effects of a high-fat diet on impulsive choice in rats. Physiol Behav. 2021;229:11.10.1016/j.physbeh.2020.113260Search in Google Scholar PubMed PubMed Central

Received: 2022-09-01
Revised: 2022-10-08
Accepted: 2022-11-02
Published Online: 2023-01-24

© 2023 the author(s), published by De Gruyter

This work is licensed under the Creative Commons Attribution 4.0 International License.

Articles in the same Issue

  1. Biomedical Sciences
  2. Systemic investigation of inetetamab in combination with small molecules to treat HER2-overexpressing breast and gastric cancers
  3. Immunosuppressive treatment for idiopathic membranous nephropathy: An updated network meta-analysis
  4. Identifying two pathogenic variants in a patient with pigmented paravenous retinochoroidal atrophy
  5. Effects of phytoestrogens combined with cold stress on sperm parameters and testicular proteomics in rats
  6. A case of pulmonary embolism with bad warfarin anticoagulant effects caused by E. coli infection
  7. Neutrophilia with subclinical Cushing’s disease: A case report and literature review
  8. Isoimperatorin alleviates lipopolysaccharide-induced periodontitis by downregulating ERK1/2 and NF-κB pathways
  9. Immunoregulation of synovial macrophages for the treatment of osteoarthritis
  10. Novel CPLANE1 c.8948dupT (p.P2984Tfs*7) variant in a child patient with Joubert syndrome
  11. Antiphospholipid antibodies and the risk of thrombosis in myeloproliferative neoplasms
  12. Immunological responses of septic rats to combination therapy with thymosin α1 and vitamin C
  13. High glucose and high lipid induced mitochondrial dysfunction in JEG-3 cells through oxidative stress
  14. Pharmacological inhibition of the ubiquitin-specific protease 8 effectively suppresses glioblastoma cell growth
  15. Levocarnitine regulates the growth of angiotensin II-induced myocardial fibrosis cells via TIMP-1
  16. Age-related changes in peripheral T-cell subpopulations in elderly individuals: An observational study
  17. Single-cell transcription analysis reveals the tumor origin and heterogeneity of human bilateral renal clear cell carcinoma
  18. Identification of iron metabolism-related genes as diagnostic signatures in sepsis by blood transcriptomic analysis
  19. Long noncoding RNA ACART knockdown decreases 3T3-L1 preadipocyte proliferation and differentiation
  20. Surgery, adjuvant immunotherapy plus chemotherapy and radiotherapy for primary malignant melanoma of the parotid gland (PGMM): A case report
  21. Dosimetry comparison with helical tomotherapy, volumetric modulated arc therapy, and intensity-modulated radiotherapy for grade II gliomas: A single‑institution case series
  22. Soy isoflavone reduces LPS-induced acute lung injury via increasing aquaporin 1 and aquaporin 5 in rats
  23. Refractory hypokalemia with sexual dysplasia and infertility caused by 17α-hydroxylase deficiency and triple X syndrome: A case report
  24. Meta-analysis of cancer risk among end stage renal disease undergoing maintenance dialysis
  25. 6-Phosphogluconate dehydrogenase inhibition arrests growth and induces apoptosis in gastric cancer via AMPK activation and oxidative stress
  26. Experimental study on the optimization of ANM33 release in foam cells
  27. Primary retroperitoneal angiosarcoma: A case report
  28. Metabolomic analysis-identified 2-hydroxybutyric acid might be a key metabolite of severe preeclampsia
  29. Malignant pleural effusion diagnosis and therapy
  30. Effect of spaceflight on the phenotype and proteome of Escherichia coli
  31. Comparison of immunotherapy combined with stereotactic radiotherapy and targeted therapy for patients with brain metastases: A systemic review and meta-analysis
  32. Activation of hypermethylated P2RY1 mitigates gastric cancer by promoting apoptosis and inhibiting proliferation
  33. Association between the VEGFR-2 -604T/C polymorphism (rs2071559) and type 2 diabetic retinopathy
  34. The role of IL-31 and IL-34 in the diagnosis and treatment of chronic periodontitis
  35. Triple-negative mouse breast cancer initiating cells show high expression of beta1 integrin and increased malignant features
  36. mNGS facilitates the accurate diagnosis and antibiotic treatment of suspicious critical CNS infection in real practice: A retrospective study
  37. The apatinib and pemetrexed combination has antitumor and antiangiogenic effects against NSCLC
  38. Radiotherapy for primary thyroid adenoid cystic carcinoma
  39. Design and functional preliminary investigation of recombinant antigen EgG1Y162–EgG1Y162 against Echinococcus granulosus
  40. Effects of losartan in patients with NAFLD: A meta-analysis of randomized controlled trial
  41. Bibliometric analysis of METTL3: Current perspectives, highlights, and trending topics
  42. Performance comparison of three scaling algorithms in NMR-based metabolomics analysis
  43. PI3K/AKT/mTOR pathway and its related molecules participate in PROK1 silence-induced anti-tumor effects on pancreatic cancer
  44. The altered expression of cytoskeletal and synaptic remodeling proteins during epilepsy
  45. Effects of pegylated recombinant human granulocyte colony-stimulating factor on lymphocytes and white blood cells of patients with malignant tumor
  46. Prostatitis as initial manifestation of Chlamydia psittaci pneumonia diagnosed by metagenome next-generation sequencing: A case report
  47. NUDT21 relieves sevoflurane-induced neurological damage in rats by down-regulating LIMK2
  48. Association of interleukin-10 rs1800896, rs1800872, and interleukin-6 rs1800795 polymorphisms with squamous cell carcinoma risk: A meta-analysis
  49. Exosomal HBV-DNA for diagnosis and treatment monitoring of chronic hepatitis B
  50. Shear stress leads to the dysfunction of endothelial cells through the Cav-1-mediated KLF2/eNOS/ERK signaling pathway under physiological conditions
  51. Interaction between the PI3K/AKT pathway and mitochondrial autophagy in macrophages and the leukocyte count in rats with LPS-induced pulmonary infection
  52. Meta-analysis of the rs231775 locus polymorphism in the CTLA-4 gene and the susceptibility to Graves’ disease in children
  53. Cloning, subcellular localization and expression of phosphate transporter gene HvPT6 of hulless barley
  54. Coptisine mitigates diabetic nephropathy via repressing the NRLP3 inflammasome
  55. Significant elevated CXCL14 and decreased IL-39 levels in patients with tuberculosis
  56. Whole-exome sequencing applications in prenatal diagnosis of fetal bowel dilatation
  57. Gemella morbillorum infective endocarditis: A case report and literature review
  58. An unusual ectopic thymoma clonal evolution analysis: A case report
  59. Severe cumulative skin toxicity during toripalimab combined with vemurafenib following toripalimab alone
  60. Detection of V. vulnificus septic shock with ARDS using mNGS
  61. Novel rare genetic variants of familial and sporadic pulmonary atresia identified by whole-exome sequencing
  62. The influence and mechanistic action of sperm DNA fragmentation index on the outcomes of assisted reproduction technology
  63. Novel compound heterozygous mutations in TELO2 in an infant with You-Hoover-Fong syndrome: A case report and literature review
  64. ctDNA as a prognostic biomarker in resectable CLM: Systematic review and meta-analysis
  65. Diagnosis of primary amoebic meningoencephalitis by metagenomic next-generation sequencing: A case report
  66. Phylogenetic analysis of promoter regions of human Dolichol kinase (DOLK) and orthologous genes using bioinformatics tools
  67. Collagen changes in rabbit conjunctiva after conjunctival crosslinking
  68. Effects of NM23 transfection of human gastric carcinoma cells in mice
  69. Oral nifedipine and phytosterol, intravenous nicardipine, and oral nifedipine only: Three-arm, retrospective, cohort study for management of severe preeclampsia
  70. Case report of hepatic retiform hemangioendothelioma: A rare tumor treated with ultrasound-guided microwave ablation
  71. Curcumin induces apoptosis in human hepatocellular carcinoma cells by decreasing the expression of STAT3/VEGF/HIF-1α signaling
  72. Rare presentation of double-clonal Waldenström macroglobulinemia with pulmonary embolism: A case report
  73. Giant duplication of the transverse colon in an adult: A case report and literature review
  74. Ectopic thyroid tissue in the breast: A case report
  75. SDR16C5 promotes proliferation and migration and inhibits apoptosis in pancreatic cancer
  76. Vaginal metastasis from breast cancer: A case report
  77. Screening of the best time window for MSC transplantation to treat acute myocardial infarction with SDF-1α antibody-loaded targeted ultrasonic microbubbles: An in vivo study in miniswine
  78. Inhibition of TAZ impairs the migration ability of melanoma cells
  79. Molecular complexity analysis of the diagnosis of Gitelman syndrome in China
  80. Effects of maternal calcium and protein intake on the development and bone metabolism of offspring mice
  81. Identification of winter wheat pests and diseases based on improved convolutional neural network
  82. Ultra-multiplex PCR technique to guide treatment of Aspergillus-infected aortic valve prostheses
  83. Virtual high-throughput screening: Potential inhibitors targeting aminopeptidase N (CD13) and PIKfyve for SARS-CoV-2
  84. Immune checkpoint inhibitors in cancer patients with COVID-19
  85. Utility of methylene blue mixed with autologous blood in preoperative localization of pulmonary nodules and masses
  86. Integrated analysis of the microbiome and transcriptome in stomach adenocarcinoma
  87. Berberine suppressed sarcopenia insulin resistance through SIRT1-mediated mitophagy
  88. DUSP2 inhibits the progression of lupus nephritis in mice by regulating the STAT3 pathway
  89. Lung abscess by Fusobacterium nucleatum and Streptococcus spp. co-infection by mNGS: A case series
  90. Genetic alterations of KRAS and TP53 in intrahepatic cholangiocarcinoma associated with poor prognosis
  91. Granulomatous polyangiitis involving the fourth ventricle: Report of a rare case and a literature review
  92. Studying infant mortality: A demographic analysis based on data mining models
  93. Metaplastic breast carcinoma with osseous differentiation: A report of a rare case and literature review
  94. Protein Z modulates the metastasis of lung adenocarcinoma cells
  95. Inhibition of pyroptosis and apoptosis by capsaicin protects against LPS-induced acute kidney injury through TRPV1/UCP2 axis in vitro
  96. TAK-242, a toll-like receptor 4 antagonist, against brain injury by alleviates autophagy and inflammation in rats
  97. Primary mediastinum Ewing’s sarcoma with pleural effusion: A case report and literature review
  98. Association of ADRB2 gene polymorphisms and intestinal microbiota in Chinese Han adolescents
  99. Tanshinone IIA alleviates chondrocyte apoptosis and extracellular matrix degeneration by inhibiting ferroptosis
  100. Study on the cytokines related to SARS-Cov-2 in testicular cells and the interaction network between cells based on scRNA-seq data
  101. Effect of periostin on bone metabolic and autophagy factors during tooth eruption in mice
  102. HP1 induces ferroptosis of renal tubular epithelial cells through NRF2 pathway in diabetic nephropathy
  103. Intravaginal estrogen management in postmenopausal patients with vaginal squamous intraepithelial lesions along with CO2 laser ablation: A retrospective study
  104. Hepatocellular carcinoma cell differentiation trajectory predicts immunotherapy, potential therapeutic drugs, and prognosis of patients
  105. Effects of physical exercise on biomarkers of oxidative stress in healthy subjects: A meta-analysis of randomized controlled trials
  106. Identification of lysosome-related genes in connection with prognosis and immune cell infiltration for drug candidates in head and neck cancer
  107. Development of an instrument-free and low-cost ELISA dot-blot test to detect antibodies against SARS-CoV-2
  108. Research progress on gas signal molecular therapy for Parkinson’s disease
  109. Adiponectin inhibits TGF-β1-induced skin fibroblast proliferation and phenotype transformation via the p38 MAPK signaling pathway
  110. The G protein-coupled receptor-related gene signatures for predicting prognosis and immunotherapy response in bladder urothelial carcinoma
  111. α-Fetoprotein contributes to the malignant biological properties of AFP-producing gastric cancer
  112. CXCL12/CXCR4/CXCR7 axis in placenta tissues of patients with placenta previa
  113. Association between thyroid stimulating hormone levels and papillary thyroid cancer risk: A meta-analysis
  114. Significance of sTREM-1 and sST2 combined diagnosis for sepsis detection and prognosis prediction
  115. Diagnostic value of serum neuroactive substances in the acute exacerbation of chronic obstructive pulmonary disease complicated with depression
  116. Research progress of AMP-activated protein kinase and cardiac aging
  117. TRIM29 knockdown prevented the colon cancer progression through decreasing the ubiquitination levels of KRT5
  118. Cross-talk between gut microbiota and liver steatosis: Complications and therapeutic target
  119. Metastasis from small cell lung cancer to ovary: A case report
  120. The early diagnosis and pathogenic mechanisms of sepsis-related acute kidney injury
  121. The effect of NK cell therapy on sepsis secondary to lung cancer: A case report
  122. Erianin alleviates collagen-induced arthritis in mice by inhibiting Th17 cell differentiation
  123. Loss of ACOX1 in clear cell renal cell carcinoma and its correlation with clinical features
  124. Signalling pathways in the osteogenic differentiation of periodontal ligament stem cells
  125. Crosstalk between lactic acid and immune regulation and its value in the diagnosis and treatment of liver failure
  126. Clinicopathological features and differential diagnosis of gastric pleomorphic giant cell carcinoma
  127. Traumatic brain injury and rTMS-ERPs: Case report and literature review
  128. Extracellular fibrin promotes non-small cell lung cancer progression through integrin β1/PTEN/AKT signaling
  129. Knockdown of DLK4 inhibits non-small cell lung cancer tumor growth by downregulating CKS2
  130. The co-expression pattern of VEGFR-2 with indicators related to proliferation, apoptosis, and differentiation of anagen hair follicles
  131. Inflammation-related signaling pathways in tendinopathy
  132. CD4+ T cell count in HIV/TB co-infection and co-occurrence with HL: Case report and literature review
  133. Clinical analysis of severe Chlamydia psittaci pneumonia: Case series study
  134. Bioinformatics analysis to identify potential biomarkers for the pulmonary artery hypertension associated with the basement membrane
  135. Influence of MTHFR polymorphism, alone or in combination with smoking and alcohol consumption, on cancer susceptibility
  136. Catharanthus roseus (L.) G. Don counteracts the ampicillin resistance in multiple antibiotic-resistant Staphylococcus aureus by downregulation of PBP2a synthesis
  137. Combination of a bronchogenic cyst in the thoracic spinal canal with chronic myelocytic leukemia
  138. Bacterial lipoprotein plays an important role in the macrophage autophagy and apoptosis induced by Salmonella typhimurium and Staphylococcus aureus
  139. TCL1A+ B cells predict prognosis in triple-negative breast cancer through integrative analysis of single-cell and bulk transcriptomic data
  140. Ezrin promotes esophageal squamous cell carcinoma progression via the Hippo signaling pathway
  141. Ferroptosis: A potential target of macrophages in plaque vulnerability
  142. Predicting pediatric Crohn's disease based on six mRNA-constructed risk signature using comprehensive bioinformatic approaches
  143. Applications of genetic code expansion and photosensitive UAAs in studying membrane proteins
  144. HK2 contributes to the proliferation, migration, and invasion of diffuse large B-cell lymphoma cells by enhancing the ERK1/2 signaling pathway
  145. IL-17 in osteoarthritis: A narrative review
  146. Circadian cycle and neuroinflammation
  147. Probiotic management and inflammatory factors as a novel treatment in cirrhosis: A systematic review and meta-analysis
  148. Hemorrhagic meningioma with pulmonary metastasis: Case report and literature review
  149. SPOP regulates the expression profiles and alternative splicing events in human hepatocytes
  150. Knockdown of SETD5 inhibited glycolysis and tumor growth in gastric cancer cells by down-regulating Akt signaling pathway
  151. PTX3 promotes IVIG resistance-induced endothelial injury in Kawasaki disease by regulating the NF-κB pathway
  152. Pancreatic ectopic thyroid tissue: A case report and analysis of literature
  153. The prognostic impact of body mass index on female breast cancer patients in underdeveloped regions of northern China differs by menopause status and tumor molecular subtype
  154. Report on a case of liver-originating malignant melanoma of unknown primary
  155. Case report: Herbal treatment of neutropenic enterocolitis after chemotherapy for breast cancer
  156. The fibroblast growth factor–Klotho axis at molecular level
  157. Characterization of amiodarone action on currents in hERG-T618 gain-of-function mutations
  158. A case report of diagnosis and dynamic monitoring of Listeria monocytogenes meningitis with NGS
  159. Effect of autologous platelet-rich plasma on new bone formation and viability of a Marburg bone graft
  160. Small breast epithelial mucin as a useful prognostic marker for breast cancer patients
  161. Continuous non-adherent culture promotes transdifferentiation of human adipose-derived stem cells into retinal lineage
  162. Nrf3 alleviates oxidative stress and promotes the survival of colon cancer cells by activating AKT/BCL-2 signal pathway
  163. Favorable response to surufatinib in a patient with necrolytic migratory erythema: A case report
  164. Case report of atypical undernutrition of hypoproteinemia type
  165. Down-regulation of COL1A1 inhibits tumor-associated fibroblast activation and mediates matrix remodeling in the tumor microenvironment of breast cancer
  166. Sarcoma protein kinase inhibition alleviates liver fibrosis by promoting hepatic stellate cells ferroptosis
  167. Research progress of serum eosinophil in chronic obstructive pulmonary disease and asthma
  168. Clinicopathological characteristics of co-existing or mixed colorectal cancer and neuroendocrine tumor: Report of five cases
  169. Role of menopausal hormone therapy in the prevention of postmenopausal osteoporosis
  170. Precisional detection of lymph node metastasis using tFCM in colorectal cancer
  171. Advances in diagnosis and treatment of perimenopausal syndrome
  172. A study of forensic genetics: ITO index distribution and kinship judgment between two individuals
  173. Acute lupus pneumonitis resembling miliary tuberculosis: A case-based review
  174. Plasma levels of CD36 and glutathione as biomarkers for ruptured intracranial aneurysm
  175. Fractalkine modulates pulmonary angiogenesis and tube formation by modulating CX3CR1 and growth factors in PVECs
  176. Novel risk prediction models for deep vein thrombosis after thoracotomy and thoracoscopic lung cancer resections, involving coagulation and immune function
  177. Exploring the diagnostic markers of essential tremor: A study based on machine learning algorithms
  178. Evaluation of effects of small-incision approach treatment on proximal tibia fracture by deep learning algorithm-based magnetic resonance imaging
  179. An online diagnosis method for cancer lesions based on intelligent imaging analysis
  180. Medical imaging in rheumatoid arthritis: A review on deep learning approach
  181. Predictive analytics in smart healthcare for child mortality prediction using a machine learning approach
  182. Utility of neutrophil–lymphocyte ratio and platelet–lymphocyte ratio in predicting acute-on-chronic liver failure survival
  183. A biomedical decision support system for meta-analysis of bilateral upper-limb training in stroke patients with hemiplegia
  184. TNF-α and IL-8 levels are positively correlated with hypobaric hypoxic pulmonary hypertension and pulmonary vascular remodeling in rats
  185. Stochastic gradient descent optimisation for convolutional neural network for medical image segmentation
  186. Comparison of the prognostic value of four different critical illness scores in patients with sepsis-induced coagulopathy
  187. Application and teaching of computer molecular simulation embedded technology and artificial intelligence in drug research and development
  188. Hepatobiliary surgery based on intelligent image segmentation technology
  189. Value of brain injury-related indicators based on neural network in the diagnosis of neonatal hypoxic-ischemic encephalopathy
  190. Analysis of early diagnosis methods for asymmetric dementia in brain MR images based on genetic medical technology
  191. Early diagnosis for the onset of peri-implantitis based on artificial neural network
  192. Clinical significance of the detection of serum IgG4 and IgG4/IgG ratio in patients with thyroid-associated ophthalmopathy
  193. Forecast of pain degree of lumbar disc herniation based on back propagation neural network
  194. SPA-UNet: A liver tumor segmentation network based on fused multi-scale features
  195. Systematic evaluation of clinical efficacy of CYP1B1 gene polymorphism in EGFR mutant non-small cell lung cancer observed by medical image
  196. Rehabilitation effect of intelligent rehabilitation training system on hemiplegic limb spasms after stroke
  197. A novel approach for minimising anti-aliasing effects in EEG data acquisition
  198. ErbB4 promotes M2 activation of macrophages in idiopathic pulmonary fibrosis
  199. Clinical role of CYP1B1 gene polymorphism in prediction of postoperative chemotherapy efficacy in NSCLC based on individualized health model
  200. Lung nodule segmentation via semi-residual multi-resolution neural networks
  201. Evaluation of brain nerve function in ICU patients with Delirium by deep learning algorithm-based resting state MRI
  202. A data mining technique for detecting malignant mesothelioma cancer using multiple regression analysis
  203. Markov model combined with MR diffusion tensor imaging for predicting the onset of Alzheimer’s disease
  204. Effectiveness of the treatment of depression associated with cancer and neuroimaging changes in depression-related brain regions in patients treated with the mediator-deuterium acupuncture method
  205. Molecular mechanism of colorectal cancer and screening of molecular markers based on bioinformatics analysis
  206. Monitoring and evaluation of anesthesia depth status data based on neuroscience
  207. Exploring the conformational dynamics and thermodynamics of EGFR S768I and G719X + S768I mutations in non-small cell lung cancer: An in silico approaches
  208. Optimised feature selection-driven convolutional neural network using gray level co-occurrence matrix for detection of cervical cancer
  209. Incidence of different pressure patterns of spinal cerebellar ataxia and analysis of imaging and genetic diagnosis
  210. Pathogenic bacteria and treatment resistance in older cardiovascular disease patients with lung infection and risk prediction model
  211. Adoption value of support vector machine algorithm-based computed tomography imaging in the diagnosis of secondary pulmonary fungal infections in patients with malignant hematological disorders
  212. From slides to insights: Harnessing deep learning for prognostic survival prediction in human colorectal cancer histology
  213. Ecology and Environmental Science
  214. Monitoring of hourly carbon dioxide concentration under different land use types in arid ecosystem
  215. Comparing the differences of prokaryotic microbial community between pit walls and bottom from Chinese liquor revealed by 16S rRNA gene sequencing
  216. Effects of cadmium stress on fruits germination and growth of two herbage species
  217. Bamboo charcoal affects soil properties and bacterial community in tea plantations
  218. Optimization of biogas potential using kinetic models, response surface methodology, and instrumental evidence for biodegradation of tannery fleshings during anaerobic digestion
  219. Understory vegetation diversity patterns of Platycladus orientalis and Pinus elliottii communities in Central and Southern China
  220. Studies on macrofungi diversity and discovery of new species of Abortiporus from Baotianman World Biosphere Reserve
  221. Food Science
  222. Effect of berrycactus fruit (Myrtillocactus geometrizans) on glutamate, glutamine, and GABA levels in the frontal cortex of rats fed with a high-fat diet
  223. Guesstimate of thymoquinone diversity in Nigella sativa L. genotypes and elite varieties collected from Indian states using HPTLC technique
  224. Analysis of bacterial community structure of Fuzhuan tea with different processing techniques
  225. Untargeted metabolomics reveals sour jujube kernel benefiting the nutritional value and flavor of Morchella esculenta
  226. Mycobiota in Slovak wine grapes: A case study from the small Carpathians wine region
  227. Elemental analysis of Fadogia ancylantha leaves used as a nutraceutical in Mashonaland West Province, Zimbabwe
  228. Microbiological transglutaminase: Biotechnological application in the food industry
  229. Influence of solvent-free extraction of fish oil from catfish (Clarias magur) heads using a Taguchi orthogonal array design: A qualitative and quantitative approach
  230. Chromatographic analysis of the chemical composition and anticancer activities of Curcuma longa extract cultivated in Palestine
  231. The potential for the use of leghemoglobin and plant ferritin as sources of iron
  232. Investigating the association between dietary patterns and glycemic control among children and adolescents with T1DM
  233. Bioengineering and Biotechnology
  234. Biocompatibility and osteointegration capability of β-TCP manufactured by stereolithography 3D printing: In vitro study
  235. Clinical characteristics and the prognosis of diabetic foot in Tibet: A single center, retrospective study
  236. Agriculture
  237. Biofertilizer and NPSB fertilizer application effects on nodulation and productivity of common bean (Phaseolus vulgaris L.) at Sodo Zuria, Southern Ethiopia
  238. On correlation between canopy vegetation and growth indexes of maize varieties with different nitrogen efficiencies
  239. Exopolysaccharides from Pseudomonas tolaasii inhibit the growth of Pleurotus ostreatus mycelia
  240. A transcriptomic evaluation of the mechanism of programmed cell death of the replaceable bud in Chinese chestnut
  241. Melatonin enhances salt tolerance in sorghum by modulating photosynthetic performance, osmoregulation, antioxidant defense, and ion homeostasis
  242. Effects of plant density on alfalfa (Medicago sativa L.) seed yield in western Heilongjiang areas
  243. Identification of rice leaf diseases and deficiency disorders using a novel DeepBatch technique
  244. Artificial intelligence and internet of things oriented sustainable precision farming: Towards modern agriculture
  245. Animal Sciences
  246. Effect of ketogenic diet on exercise tolerance and transcriptome of gastrocnemius in mice
  247. Combined analysis of mRNA–miRNA from testis tissue in Tibetan sheep with different FecB genotypes
  248. Isolation, identification, and drug resistance of a partially isolated bacterium from the gill of Siniperca chuatsi
  249. Tracking behavioral changes of confined sows from the first mating to the third parity
  250. The sequencing of the key genes and end products in the TLR4 signaling pathway from the kidney of Rana dybowskii exposed to Aeromonas hydrophila
  251. Development of a new candidate vaccine against piglet diarrhea caused by Escherichia coli
  252. Plant Sciences
  253. Crown and diameter structure of pure Pinus massoniana Lamb. forest in Hunan province, China
  254. Genetic evaluation and germplasm identification analysis on ITS2, trnL-F, and psbA-trnH of alfalfa varieties germplasm resources
  255. Tissue culture and rapid propagation technology for Gentiana rhodantha
  256. Effects of cadmium on the synthesis of active ingredients in Salvia miltiorrhiza
  257. Cloning and expression analysis of VrNAC13 gene in mung bean
  258. Chlorate-induced molecular floral transition revealed by transcriptomes
  259. Effects of warming and drought on growth and development of soybean in Hailun region
  260. Effects of different light conditions on transient expression and biomass in Nicotiana benthamiana leaves
  261. Comparative analysis of the rhizosphere microbiome and medicinally active ingredients of Atractylodes lancea from different geographical origins
  262. Distinguish Dianthus species or varieties based on chloroplast genomes
  263. Comparative transcriptomes reveal molecular mechanisms of apple blossoms of different tolerance genotypes to chilling injury
  264. Study on fresh processing key technology and quality influence of Cut Ophiopogonis Radix based on multi-index evaluation
  265. An advanced approach for fig leaf disease detection and classification: Leveraging image processing and enhanced support vector machine methodology
  266. Erratum
  267. Erratum to “Protein Z modulates the metastasis of lung adenocarcinoma cells”
  268. Erratum to “BRCA1 subcellular localization regulated by PI3K signaling pathway in triple-negative breast cancer MDA-MB-231 cells and hormone-sensitive T47D cells”
  269. Retraction
  270. Retraction to “Protocatechuic acid attenuates cerebral aneurysm formation and progression by inhibiting TNF-alpha/Nrf-2/NF-kB-mediated inflammatory mechanisms in experimental rats”
Downloaded on 5.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/biol-2022-0529/html
Scroll to top button