Home Refractory hypertension complicated with Turner syndrome: A case report
Article Open Access

Refractory hypertension complicated with Turner syndrome: A case report

  • Sisi Hu , Jichun Liu , Haixia Tang , Xiangrong Xie EMAIL logo and Youquan Wei EMAIL logo
Published/Copyright: August 6, 2024

Abstract

Hypertension is commonly classified into essential hypertension and secondary hypertension, although definitive classification can be challenging in some cases. Here, we discussed a patient who admitted for refractory hypertension, exhibiting various clinical manifestations including inadequate estrogen secretion, underdeveloped secondary sexual characteristics, primary amenorrhea, short stature, multiple moles, and somatic abnormalities. The patient was finally diagnosed with Turner syndrome (TS) based on clinical findings and chromosomal analysis. The genetic karyotype identified was 46,X,i(X)(q10).

1 Background

Turner syndrome (TS), also known as congenital ovarian dysgenesis, was first described by American endocrinologist Henry Turner in 1938. It is a chromosomal disorder characterized by complete or partial loss of one X chromosome in affected individuals. Its clinical manifestations include insufficient estrogen secretion, underdeveloped secondary sexual characteristics, primary amenorrhea, short stature, multiple moles, spinal deformities, and coarctation of the aorta [1]. Current data indicate an incidence of 1 in 2,000 live female births [2,3]. Individuals with TS face a threefold higher risk of cardiovascular diseases compared to the general population [4]. Hypertension emerges as a significant risk factor for acquired cardiovascular diseases, with females affected by TS prone to developing hypertension during childhood and adolescence. As reported by observational studies, the prevalence of hypertension among TS patients varied from 21 to 40%, increasing with age [5]. This report presented a rare case of refractory hypertension complicated by TS. Our study was aimed to explore the clinical characteristics, diagnostic challenges, and therapeutic strategies associated with this case, thereby enhancing understanding of this condition and providing a valuable reference for effective management for it.

2 Case presentation

On February 16, 2023, a 31-year-old female patient was admitted to the hospital due to a 1-day history of elevated blood pressure.

2.1 Medical history

The patient had visited the dental department a week before due to toothache resulting from dental caries. During this visit, her blood pressure was recorded as 220/120 mmHg, prompting the dentist to recommend consultation with the cardiology department. The patient reported transient dizziness and discomfort, with the first occurrence 3 months ago and a second occurrence 3 days ago. Although the patient did not consider these episodes significant, they were noteworthy. She denied any history of chronic illnesses. Despite being married for 5 years, she experienced irregular menstruation and remained nulliparous.

  1. Informed consent: Informed consent has been obtained from all individuals included in this study.

  2. Ethical approval: The research related to human use has been complied with all the relevant national regulations, institutional policies and in accordance with the tenets of the Helsinki Declaration, and has been approved by the authors’ institutional review board or equivalent committee.

2.2 Physical examination

Upon examination, her blood pressure in the right upper limb was observed to be 270/164 mmHg, and in the left upper limb, it was 262/158 mmHg. Her body mass index (BMI) was 25.33, with the weight of 54 kg and height of 146 cm, suggesting obesity according to standard BMI classifications. Coarse breath sounds were auscultated bilaterally, without the presence of crackles or wheezes. Her heart rate was 121 beats per minute, demonstrating a regular rhythm. No pathological murmurs were detected during auscultation of the cardiac valves. There was no edema observed in either lower limb.

2.3 Laboratory tests

The patient’s laboratory results indicated a potassium level of 2.71 mmol/L, creatinine of 145.7 µmol/L, urine protein of +++, anti-thyroglobulin antibody of 106.1 IU/mL, and thyroid peroxidase antibody of 131.4 IU/mL, suggesting hypokalemia, chronic renal insufficiency, and autoimmune thyroiditis. An electrocardiogram revealed sinus rhythm, left ventricular hypertrophy, and ST-T changes (Figure 1a). Cardiac ultrasound showed an ejection fraction of 58%, left atrium diameter of 42 mm, and left ventricle diameter of 43 mm, with normal valve morphology and closure. A head computed tomography (CT) indicated acute cerebral infarction (Figure 1b). Ambulatory blood pressure monitoring revealed a non-dipping pattern. The patient presented with hypertension and hypokalemia, and reported dental decay and toothache. Additionally, she experienced multiple episodes of vomiting following anesthesia rinsing before tooth extraction, suggesting that the hypokalemia may be secondary to vomiting. Oral potassium supplementation was promptly administered due to severe hypokalemia upon admission, and no 24 h urine potassium collection was performed. Further imaging studies, including adrenal and renal Doppler ultrasound, contrast-enhanced adrenal CT, and thoracoabdominal computed tomographic angiography (CTA), showed no significant abnormalities (Figure 1d).

Figure 1 
                  (a) Electrocardiogram showing sinus rhythm, left ventricular hypertrophy, and ST-T changes. (b) Acute cerebral infarction. (c) Gynecological color Doppler ultrasound suggesting uterine size of 23, 13, 28 mm and bilateral adnexal linear changes. (d) Chest and abdominal CTA showing no abnormalities.
Figure 1

(a) Electrocardiogram showing sinus rhythm, left ventricular hypertrophy, and ST-T changes. (b) Acute cerebral infarction. (c) Gynecological color Doppler ultrasound suggesting uterine size of 23, 13, 28 mm and bilateral adnexal linear changes. (d) Chest and abdominal CTA showing no abnormalities.

2.4 Detailed findings

A comprehensive medical history and physical examination revealed the absence of secondary sexual characteristics, onset of menarche at 18 years old, irregular menstruation, 5 years of infertility, and previous gynecological examinations indicating a small uterus. Subsequent pelvic ultrasound showed a uterine size of 23 mm × 13 mm × 28 mm with bilateral adnexal changes (Figure 1c), suggesting possible premature ovarian failure. Further physical examination identified underdeveloped secondary sexual characteristics, short stature (146 cm), multiple moles, cubitus valgus, wide-set eyes, and ptosis (Figure 2). Hormonal analysis demonstrated decreased estradiol levels (14 pg/mL) and elevated follicle-stimulating hormone (FSH) (82.59 mIU/mL).

Figure 2 
                  Multiple moles (a)–(d), webbed neck (c), and elbow pronation (d).
Figure 2

Multiple moles (a)–(d), webbed neck (c), and elbow pronation (d).

2.5 Discharge medications

The patient was discharged on the following medications: sacubitril valsartan sodium tablets 300 mg once daily, nifedipine sustained-release tablets 10 mg once daily, hydrochlorothiazide tablets 12.5 mg once daily, carvedilol 20 mg twice daily, enteric-coated aspirin tablets 0.1 g once daily, and atorvastatin calcium tablets 20 mg once nightly. During a follow-up visit 1 month later, an outpatient examination was conducted, which showed no presence of urinary protein detected and a creatinine level of 133 µmol/L.

3 Discussion

The patient was a young female diagnosed with hypertension, initially measured at 220/120 mmHg. Given her age and lack of risk factors for essential hypertension, secondary causes were thoroughly investigated. Auxiliary examinations revealed multi-organ damage involving the heart, brain, and kidneys, suggesting potential secondary hypertension. Additionally, she presented with hypokalemia, prompting consideration of secondary causes such as primary hyperaldosteronism. However, her renin level was elevated at 138.30 µIU/mL, and aldosterone was also elevated at 58.10 ng/dL, indicating secondary hyperaldosteronism. Further imaging studies, including adrenal and renal Doppler ultrasound and contrast-enhanced adrenal CT, showed no significant abnormalities. Thoracoabdominal CTA ruled out the possibilities of coarctation of the aorta, renal artery stenosis, renin-secreting tumors, and primary hyperaldosteronism as potential causes of secondary hypertension (Figure 3).

Figure 3 
               Karyotype: 46,X,i(X)(q10); the chromosome number: 46; the sex chromosome: X (missing one X chromosome compared to a normal female but with an additional structurally abnormal chromosome, i(X)).
Figure 3

Karyotype: 46,X,i(X)(q10); the chromosome number: 46; the sex chromosome: X (missing one X chromosome compared to a normal female but with an additional structurally abnormal chromosome, i(X)).

Furthermore, the patient exhibited underdeveloped secondary sexual characteristics, menarche at 18 years with irregular menstruation, and a small uterus, prompting consideration of congenital adrenal hyperplasia (CAH), specifically 17α-hydroxylase deficiency, a chromosomal disorder. However, CAH typically presented with excessive androgens causing masculinization in females, including hirsutism, acne, irregular menstruation, and may involve underdeveloped or absent gonads, low cortisol levels, and elevated adrenocorticotropic hormone (ACTH) levels. This diagnosis was ruled out due to the patient’s normal cortisol and ACTH levels, as well as negative genetic testing for CAH (21-hydroxylase deficiency). Subsequent examinations revealed characteristic features such as short stature, multiple moles, elbow deformity, wide-set eyes, ptosis, and underdeveloped secondary sexual characteristics. Gynecological ultrasound showed a small uterus and premature ovarian failure, suggesting TS. Hormonal analysis showed decreased estradiol levels (14 pg/mL) and elevated FSH levels (82.59 mIU/mL), consistent with the presentation of TS. The diagnosis was confirmed through chromosomal testing, revealing a karyotype of 46X,i(X)(q10).

TS, also known as congenital ovarian dysplasia syndrome, is a chromosomal disorder characterized by distinctive features. Individuals with TS typically exhibit either complete or partial loss of one X chromosome. In the presented case, there was a mosaic/structural abnormality type with the loss of one X chromosome compared to the typical female karyotype, alongside an additional structurally abnormal i(X)(q10) chromosome. Despite clinical similarities to the 45,X0 karyotype (complete loss of one X chromosome), the patient’s symptoms did not align with typical presentations of this karyotype. Research indicates that individuals with TS, especially those with a 45,X0 karyotype, have a high incidence of congenital heart structural abnormalities, affecting up to 50% of cases [4,6]. However, no anomalies were observed in the patient’s echocardiogram or chest-abdomen CTA. Cardiac abnormalities associated with the 45,X0 karyotype often involve the left side of the heart, including issues with the mitral valve, aortic valve, aortic arch anomalies, progressive dilation of the ascending aorta, and aortic coarctation [5,7,8]. The patient experienced menarche at 18 years old, displaying irregular menstruation and exhibiting a small uterus. These clinical features strongly indicate the occurrence of premature ovarian failure, a condition that is highly prevalent in individuals with TS. In a study involving 522 TS patients aged over 12 years, only 14% of those with a 45,X0 karyotype experienced spontaneous thelarche, with higher rates observed in patients with mosaic karyotypes [9].

Extensive research has consistently shown that approximately 30–40% of individuals with TS exhibit congenital abnormalities in the urinary tract. Among them horseshoe kidneys and duplicated renal pelvis with duplicated ureters are the most commonly observed anomalies [10,11]. However, the patient under discussion did not present any congenital structural abnormalities in the urinary tract. Regarding hormonal findings, the patient showed elevated renin and aldosterone levels, consistent with studies reporting that about half of TS patients exhibit significantly increased renin activity, potentially linked to heightened sympathetic nervous system activity [12,13]. Additionally, the patient displayed a non-dipper pattern in blood pressure rhythm, suggesting a possible association with nocturnal sympathetic nervous system dysfunction and alterations in sympathetic-vagal nerve tone [14].

The pathogenesis of hypertension in TS remains unclear [15], and is likely to be multifactorial, involving shared mechanisms with primary hypertension such as autonomic nervous system imbalance, vascular sclerosis, increased myocardial stiffness, estrogen deficiency, renal abnormalities, obesity, and reduced physical endurance [3]. Current treatment strategies for TS patients rely on clinical experience. Initial antihypertensive recommendations often involve drugs that inhibit sympathetic nervous system activity and reduce the risk of aortic dissection, such as beta-blockers and angiotensin-converting enzyme inhibitors/angiotensin receptor blockers [3]. Given the pathophysiological similarities to essential hypertension, calcium channel blockers and diuretics may also be considered for hypertension management in TS [16]. Studies have suggested that estrogen replacement therapy can modulate the renin–angiotensin–aldosterone system and potentially lower blood pressure in patients with ovarian insufficiency [17]. However, there is conflicting evidence regarding the effects of estrogen replacement therapy in women with TS. Some clinical studies indicate that estrogen replacement therapy may worsen endothelial function, leading to arterial stiffness and an increase in central arterial blood pressure [18]. Therefore, the benefits of estrogen replacement therapy in TS patients remain debated.

4 Conclusion

The findings from this case study offered valuable insights capable of guiding the diagnosis and treatment of similar patients in future clinical practice. In the context of young female patients presenting with hypertension, it is crucial to conduct a comprehensive evaluation for potential secondary causes. Particularly, if an individual exhibits clinical manifestations such as underdeveloped secondary sexual characteristics, irregular menstruation, short stature, multiple moles, cubitus valgus, wide-set eyes, and ptosis, TS should be considered. Timely genetic testing is essential to facilitate early identification and intervention, which can ultimately improve long-term prognostic outcomes for patients with TS.


# These authors contributed equally to this study.


Acknowledgements

The authors would like to thank the patient for her willingness to give her consent and approval for publication of this report.

  1. Funding information: This work was funded by the University Scientific Research Program of Anhui Province, China (grant no. 2022AH051238) and Wannan Medical College Youth Fund (WK2023ZQNZ23).

  2. Author contributions: S.H., J.L., and H.T. contributed to this project development, and manuscript editing; S.H., H.T., and X.X. contributed to data collection and manuscript-associated editing; S.H., J.L., and Y.W. contributed to data analysis. All authors contributed to the article and approved the submitted version.

  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] Classic pages in obstetrics and gynecology by Henry H. Turner. A syndrome of infantilism, congenital webbed neck, and cubitus valgus. Endocrinology. 1938;23:566–74. Am J Obstet Gynecol. 1972;113(2):279.10.1210/endo-23-5-566Search in Google Scholar

[2] Ranke MB, Saenger P. Turner’s syndrome. Lancet. 2001;358(9278):309–14.10.1016/S0140-6736(01)05487-3Search in Google Scholar PubMed

[3] Jones L, Blair J, Hawcutt DB, Lip GYH, Shantsila A. Hypertension in Turner syndrome: a review of proposed mechanisms, management and new directions. J Hypertens. 2023;41(2):203–11. 10.1097/HJH.0000000000003321.Search in Google Scholar PubMed

[4] Silberbach M, Roos-Hesselink JW, Andersen NH, Braverman AC, Brown N, Young LT, et al. American Heart Association Council on Cardiovascular Disease in the Young; Council on Genomic and Precision Medicine; and Council on Peripheral Vascular Disease. Cardiovascular health in Turner syndrome: A scientific statement from the American Heart Association. Circ Genom Precis Med. 2018 Oct;11(10):e000048. 10.1161/HCG.0000000000000048. PMID: 30354301.Search in Google Scholar PubMed

[5] Gravholt CH, Andersen NH, Conway GS, Dekkers OM, Geffner ME, Klein KO, et al. Clinical practice guidelines for the care of girls and women with Turner syndrome: Proceedings from the 2016 Cincinnati International Turner Syndrome Meeting. Eur J Endocrinol. 2017;177:G1–70.10.1530/EJE-17-0430Search in Google Scholar PubMed

[6] Schoemaker MJ, Swerdlow AJ, Higgins CD, Wright AF, Jacobs PA. United Kingdom Clinical Cytogenetics Group. Mortality in women with Turner syndrome in Great Britain: a national cohort study. J Clin Endocrinol Metab. 2008;93:4735–42. 10.1210/jc.2008-1049.Search in Google Scholar PubMed

[7] Gøtzsche CO, Krag-Olsen B, Nielsen J, Sørensen KE, Kristensen BO. Prevalence of cardiovascular malformations and association with karyotypes in Turner’s syndrome. Arch Dis Child. 1994;71:433–6.10.1136/adc.71.5.433Search in Google Scholar PubMed PubMed Central

[8] Völkl TM, Degenhardt K, Koch A, Simm D, Dörr HG, Singer H. Cardiovascular anomalies in children and young adults with Ullrich-Turner syndrome the Erlangen experience. Clin Cardiol. 2005;28:88–92.10.1002/clc.4960280209Search in Google Scholar PubMed PubMed Central

[9] Pasquino AM, Passeri F, Pucarelli I, Segni M, Municchi G. Spontaneous pubertal development in Turner’s syndrome. Italian Study Group for Turner’s syndrome. J Clin Endocrinol Metab. 1997;82:1810–3.10.1210/jcem.82.6.3970Search in Google Scholar PubMed

[10] Bilge I, Kayserili H, Emre S, Nayir A, Sirin A, Tukel T, et al. Frequency of renal malformations in Turner syndrome: analysis of 82 Turkish children. Pediatr Nephrol. 2000;14:1111–4.10.1007/s004670000315Search in Google Scholar PubMed

[11] Lippe B, Geffner ME, Dietrich RB, Boechat MI, Kangarloo H. Renal malformations in patients with Turner syndrome: imaging in 141 patients. Pediatrics. 1988;82:852–6.10.1542/peds.82.6.852Search in Google Scholar

[12] Nathwani NC, Unwin R, Brook CG, Hindmarsh PC. The influence of renal and cardiovascular abnormalities on blood pressure in Turner syndrome. Clin Endocrinol. 2000;52(3):371–7. 10.1046/j.1365-2265.2000.00961.x.Search in Google Scholar PubMed

[13] Saxena PR. Interaction between the renin-angiotensin-aldosterone and sympathetic nervous systems. J Cardiovasc Pharmacol. 1992;19:S80. 10.1097/00005344-199219006-00013.Search in Google Scholar PubMed

[14] McCarrison S, Carr A, Wong SC, Mason A. The prevalence of hypertension in paediatric Turner syndrome: a systematic review and meta-analysis. J Hum Hypertens. 2022. 10.1038/s41371-022-00777-8.Search in Google Scholar PubMed PubMed Central

[15] De Groote K, Demulier L, De Backer J, De Wolf D, De Schepper J, T’sjoen G, et al. Arterial hypertension in Turner syndrome: a review of the literature and a practical approach for diagnosis and treatment. J Hypertens. 2015;33:1342–51.10.1097/HJH.0000000000000599Search in Google Scholar PubMed

[16] Bondy CA. Aortic dissection in Turner syndrome. Curr Opin Cardiol. 2008;23:519–26.10.1097/HCO.0b013e3283129b89Search in Google Scholar

[17] Gersh FL, O’Keefe JH, Lavie CJ, Henry BM. The renin-angiotensin-aldosterone system in postmenopausal women: the promise of hormone therapy. Mayo Clin Proc. 2021;96(12):3130–41.10.1016/j.mayocp.2021.08.009Search in Google Scholar PubMed

[18] Peppa M, Pavlidis G, Mavroeidi I, Katogiannis K, Varoudi M, Ikonomidis I, et al. Effects of hormone replacement therapy on endothelial function, arterial stiffness and myocardial deformation in women with Turner syndrome. J Hypertens. 2021;39(10):2051–7.10.1097/HJH.0000000000002903Search in Google Scholar PubMed

Received: 2024-02-26
Revised: 2024-07-01
Accepted: 2024-07-09
Published Online: 2024-08-06

© 2024 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. Constitutive and evoked release of ATP in adult mouse olfactory epithelium
  3. LARP1 knockdown inhibits cultured gastric carcinoma cell cycle progression and metastatic behavior
  4. PEGylated porcine–human recombinant uricase: A novel fusion protein with improved efficacy and safety for the treatment of hyperuricemia and renal complications
  5. Research progress on ocular complications caused by type 2 diabetes mellitus and the function of tears and blepharons
  6. The role and mechanism of esketamine in preventing and treating remifentanil-induced hyperalgesia based on the NMDA receptor–CaMKII pathway
  7. Brucella infection combined with Nocardia infection: A case report and literature review
  8. Detection of serum interleukin-18 level and neutrophil/lymphocyte ratio in patients with antineutrophil cytoplasmic antibody-associated vasculitis and its clinical significance
  9. Ang-1, Ang-2, and Tie2 are diagnostic biomarkers for Henoch-Schönlein purpura and pediatric-onset systemic lupus erythematous
  10. PTTG1 induces pancreatic cancer cell proliferation and promotes aerobic glycolysis by regulating c-myc
  11. Role of serum B-cell-activating factor and interleukin-17 as biomarkers in the classification of interstitial pneumonia with autoimmune features
  12. Effectiveness and safety of a mumps containing vaccine in preventing laboratory-confirmed mumps cases from 2002 to 2017: A meta-analysis
  13. Low levels of sex hormone-binding globulin predict an increased breast cancer risk and its underlying molecular mechanisms
  14. A case of Trousseau syndrome: Screening, detection and complication
  15. Application of the integrated airway humidification device enhances the humidification effect of the rabbit tracheotomy model
  16. Preparation of Cu2+/TA/HAP composite coating with anti-bacterial and osteogenic potential on 3D-printed porous Ti alloy scaffolds for orthopedic applications
  17. Aquaporin-8 promotes human dermal fibroblasts to counteract hydrogen peroxide-induced oxidative damage: A novel target for management of skin aging
  18. Current research and evidence gaps on placental development in iron deficiency anemia
  19. Single-nucleotide polymorphism rs2910829 in PDE4D is related to stroke susceptibility in Chinese populations: The results of a meta-analysis
  20. Pheochromocytoma-induced myocardial infarction: A case report
  21. Kaempferol regulates apoptosis and migration of neural stem cells to attenuate cerebral infarction by O‐GlcNAcylation of β-catenin
  22. Sirtuin 5 regulates acute myeloid leukemia cell viability and apoptosis by succinylation modification of glycine decarboxylase
  23. Apigenin 7-glucoside impedes hypoxia-induced malignant phenotypes of cervical cancer cells in a p16-dependent manner
  24. KAT2A changes the function of endometrial stromal cells via regulating the succinylation of ENO1
  25. Current state of research on copper complexes in the treatment of breast cancer
  26. Exploring antioxidant strategies in the pathogenesis of ALS
  27. Helicobacter pylori causes gastric dysbacteriosis in chronic gastritis patients
  28. IL-33/soluble ST2 axis is associated with radiation-induced cardiac injury
  29. The predictive value of serum NLR, SII, and OPNI for lymph node metastasis in breast cancer patients with internal mammary lymph nodes after thoracoscopic surgery
  30. Carrying SNP rs17506395 (T > G) in TP63 gene and CCR5Δ32 mutation associated with the occurrence of breast cancer in Burkina Faso
  31. P2X7 receptor: A receptor closely linked with sepsis-associated encephalopathy
  32. Probiotics for inflammatory bowel disease: Is there sufficient evidence?
  33. Identification of KDM4C as a gene conferring drug resistance in multiple myeloma
  34. Microbial perspective on the skin–gut axis and atopic dermatitis
  35. Thymosin α1 combined with XELOX improves immune function and reduces serum tumor markers in colorectal cancer patients after radical surgery
  36. Highly specific vaginal microbiome signature for gynecological cancers
  37. Sample size estimation for AQP4-IgG seropositive optic neuritis: Retinal damage detection by optical coherence tomography
  38. The effects of SDF-1 combined application with VEGF on femoral distraction osteogenesis in rats
  39. Fabrication and characterization of gold nanoparticles using alginate: In vitro and in vivo assessment of its administration effects with swimming exercise on diabetic rats
  40. Mitigating digestive disorders: Action mechanisms of Mediterranean herbal active compounds
  41. Distribution of CYP2D6 and CYP2C19 gene polymorphisms in Han and Uygur populations with breast cancer in Xinjiang, China
  42. VSP-2 attenuates secretion of inflammatory cytokines induced by LPS in BV2 cells by mediating the PPARγ/NF-κB signaling pathway
  43. Factors influencing spontaneous hypothermia after emergency trauma and the construction of a predictive model
  44. Long-term administration of morphine specifically alters the level of protein expression in different brain regions and affects the redox state
  45. Application of metagenomic next-generation sequencing technology in the etiological diagnosis of peritoneal dialysis-associated peritonitis
  46. Clinical diagnosis, prevention, and treatment of neurodyspepsia syndrome using intelligent medicine
  47. Case report: Successful bronchoscopic interventional treatment of endobronchial leiomyomas
  48. Preliminary investigation into the genetic etiology of short stature in children through whole exon sequencing of the core family
  49. Cystic adenomyoma of the uterus: Case report and literature review
  50. Mesoporous silica nanoparticles as a drug delivery mechanism
  51. Dynamic changes in autophagy activity in different degrees of pulmonary fibrosis in mice
  52. Vitamin D deficiency and inflammatory markers in type 2 diabetes: Big data insights
  53. Lactate-induced IGF1R protein lactylation promotes proliferation and metabolic reprogramming of lung cancer cells
  54. Meta-analysis on the efficacy of allogeneic hematopoietic stem cell transplantation to treat malignant lymphoma
  55. Mitochondrial DNA drives neuroinflammation through the cGAS-IFN signaling pathway in the spinal cord of neuropathic pain mice
  56. Application value of artificial intelligence algorithm-based magnetic resonance multi-sequence imaging in staging diagnosis of cervical cancer
  57. Embedded monitoring system and teaching of artificial intelligence online drug component recognition
  58. Investigation into the association of FNDC1 and ADAMTS12 gene expression with plumage coloration in Muscovy ducks
  59. Yak meat content in feed and its impact on the growth of rats
  60. A rare case of Richter transformation with breast involvement: A case report and literature review
  61. First report of Nocardia wallacei infection in an immunocompetent patient in Zhejiang province
  62. Rhodococcus equi and Brucella pulmonary mass in immunocompetent: A case report and literature review
  63. Downregulation of RIP3 ameliorates the left ventricular mechanics and function after myocardial infarction via modulating NF-κB/NLRP3 pathway
  64. Evaluation of the role of some non-enzymatic antioxidants among Iraqi patients with non-alcoholic fatty liver disease
  65. The role of Phafin proteins in cell signaling pathways and diseases
  66. Ten-year anemia as initial manifestation of Castleman disease in the abdominal cavity: A case report
  67. Coexistence of hereditary spherocytosis with SPTB P.Trp1150 gene variant and Gilbert syndrome: A case report and literature review
  68. Utilization of convolutional neural networks to analyze microscopic images for high-throughput screening of mesenchymal stem cells
  69. Exploratory evaluation supported by experimental and modeling approaches of Inula viscosa root extract as a potent corrosion inhibitor for mild steel in a 1 M HCl solution
  70. Imaging manifestations of ductal adenoma of the breast: A case report
  71. Gut microbiota and sleep: Interaction mechanisms and therapeutic prospects
  72. Isomangiferin promotes the migration and osteogenic differentiation of rat bone marrow mesenchymal stem cells
  73. Prognostic value and microenvironmental crosstalk of exosome-related signatures in human epidermal growth factor receptor 2 positive breast cancer
  74. Circular RNAs as potential biomarkers for male severe sepsis
  75. Knockdown of Stanniocalcin-1 inhibits growth and glycolysis in oral squamous cell carcinoma cells
  76. The expression and biological role of complement C1s in esophageal squamous cell carcinoma
  77. A novel GNAS mutation in pseudohypoparathyroidism type 1a with articular flexion deformity: A case report
  78. Predictive value of serum magnesium levels for prognosis in patients with non-small cell lung cancer undergoing EGFR-TKI therapy
  79. HSPB1 alleviates acute-on-chronic liver failure via the P53/Bax pathway
  80. IgG4-related disease complicated by PLA2R-associated membranous nephropathy: A case report
  81. Baculovirus-mediated endostatin and angiostatin activation of autophagy through the AMPK/AKT/mTOR pathway inhibits angiogenesis in hepatocellular carcinoma
  82. Metformin mitigates osteoarthritis progression by modulating the PI3K/AKT/mTOR signaling pathway and enhancing chondrocyte autophagy
  83. Evaluation of the activity of antimicrobial peptides against bacterial vaginosis
  84. Atypical presentation of γ/δ mycosis fungoides with an unusual phenotype and SOCS1 mutation
  85. Analysis of the microecological mechanism of diabetic kidney disease based on the theory of “gut–kidney axis”: A systematic review
  86. Omega-3 fatty acids prevent gestational diabetes mellitus via modulation of lipid metabolism
  87. Refractory hypertension complicated with Turner syndrome: A case report
  88. Interaction of ncRNAs and the PI3K/AKT/mTOR pathway: Implications for osteosarcoma
  89. Association of low attenuation area scores with pulmonary function and clinical prognosis in patients with chronic obstructive pulmonary disease
  90. Long non-coding RNAs in bone formation: Key regulators and therapeutic prospects
  91. The deubiquitinating enzyme USP35 regulates the stability of NRF2 protein
  92. Neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio as potential diagnostic markers for rebleeding in patients with esophagogastric variceal bleeding
  93. G protein-coupled receptor 1 participating in the mechanism of mediating gestational diabetes mellitus by phosphorylating the AKT pathway
  94. LL37-mtDNA regulates viability, apoptosis, inflammation, and autophagy in lipopolysaccharide-treated RLE-6TN cells by targeting Hsp90aa1
  95. The analgesic effect of paeoniflorin: A focused review
  96. Chemical composition’s effect on Solanum nigrum Linn.’s antioxidant capacity and erythrocyte protection: Bioactive components and molecular docking analysis
  97. Knockdown of HCK promotes HREC cell viability and inner blood–retinal barrier integrity by regulating the AMPK signaling pathway
  98. The role of rapamycin in the PINK1/Parkin signaling pathway in mitophagy in podocytes
  99. Laryngeal non-Hodgkin lymphoma: Report of four cases and review of the literature
  100. Clinical value of macrogenome next-generation sequencing on infections
  101. Overview of dendritic cells and related pathways in autoimmune uveitis
  102. TAK-242 alleviates diabetic cardiomyopathy via inhibiting pyroptosis and TLR4/CaMKII/NLRP3 pathway
  103. Hypomethylation in promoters of PGC-1α involved in exercise-driven skeletal muscular alterations in old age
  104. Profile and antimicrobial susceptibility patterns of bacteria isolated from effluents of Kolladiba and Debark hospitals
  105. The expression and clinical significance of syncytin-1 in serum exosomes of hepatocellular carcinoma patients
  106. A histomorphometric study to evaluate the therapeutic effects of biosynthesized silver nanoparticles on the kidneys infected with Plasmodium chabaudi
  107. PGRMC1 and PAQR4 are promising molecular targets for a rare subtype of ovarian cancer
  108. Analysis of MDA, SOD, TAOC, MNCV, SNCV, and TSS scores in patients with diabetes peripheral neuropathy
  109. SLIT3 deficiency promotes non-small cell lung cancer progression by modulating UBE2C/WNT signaling
  110. The relationship between TMCO1 and CALR in the pathological characteristics of prostate cancer and its effect on the metastasis of prostate cancer cells
  111. Heterogeneous nuclear ribonucleoprotein K is a potential target for enhancing the chemosensitivity of nasopharyngeal carcinoma
  112. PHB2 alleviates retinal pigment epithelium cell fibrosis by suppressing the AGE–RAGE pathway
  113. Anti-γ-aminobutyric acid-B receptor autoimmune encephalitis with syncope as the initial symptom: Case report and literature review
  114. Comparative analysis of chloroplast genome of Lonicera japonica cv. Damaohua
  115. Human umbilical cord mesenchymal stem cells regulate glutathione metabolism depending on the ERK–Nrf2–HO-1 signal pathway to repair phosphoramide mustard-induced ovarian cancer cells
  116. Electroacupuncture on GB acupoints improves osteoporosis via the estradiol–PI3K–Akt signaling pathway
  117. Renalase protects against podocyte injury by inhibiting oxidative stress and apoptosis in diabetic nephropathy
  118. Review: Dicranostigma leptopodum: A peculiar plant of Papaveraceae
  119. Combination effect of flavonoids attenuates lung cancer cell proliferation by inhibiting the STAT3 and FAK signaling pathway
  120. Renal microangiopathy and immune complex glomerulonephritis induced by anti-tumour agents: A case report
  121. Correlation analysis of AVPR1a and AVPR2 with abnormal water and sodium and potassium metabolism in rats
  122. Gastrointestinal health anti-diarrheal mixture relieves spleen deficiency-induced diarrhea through regulating gut microbiota
  123. Myriad factors and pathways influencing tumor radiotherapy resistance
  124. Exploring the effects of culture conditions on Yapsin (YPS) gene expression in Nakaseomyces glabratus
  125. Screening of prognostic core genes based on cell–cell interaction in the peripheral blood of patients with sepsis
  126. Coagulation factor II thrombin receptor as a promising biomarker in breast cancer management
  127. Ileocecal mucinous carcinoma misdiagnosed as incarcerated hernia: A case report
  128. Methyltransferase like 13 promotes malignant behaviors of bladder cancer cells through targeting PI3K/ATK signaling pathway
  129. The debate between electricity and heat, efficacy and safety of irreversible electroporation and radiofrequency ablation in the treatment of liver cancer: A meta-analysis
  130. ZAG promotes colorectal cancer cell proliferation and epithelial–mesenchymal transition by promoting lipid synthesis
  131. Baicalein inhibits NLRP3 inflammasome activation and mitigates placental inflammation and oxidative stress in gestational diabetes mellitus
  132. Impact of SWCNT-conjugated senna leaf extract on breast cancer cells: A potential apoptotic therapeutic strategy
  133. MFAP5 inhibits the malignant progression of endometrial cancer cells in vitro
  134. Major ozonated autohemotherapy promoted functional recovery following spinal cord injury in adult rats via the inhibition of oxidative stress and inflammation
  135. Axodendritic targeting of TAU and MAP2 and microtubule polarization in iPSC-derived versus SH-SY5Y-derived human neurons
  136. Differential expression of phosphoinositide 3-kinase/protein kinase B and Toll-like receptor/nuclear factor kappa B signaling pathways in experimental obesity Wistar rat model
  137. The therapeutic potential of targeting Oncostatin M and the interleukin-6 family in retinal diseases: A comprehensive review
  138. BA inhibits LPS-stimulated inflammatory response and apoptosis in human middle ear epithelial cells by regulating the Nf-Kb/Iκbα axis
  139. Role of circRMRP and circRPL27 in chronic obstructive pulmonary disease
  140. Investigating the role of hyperexpressed HCN1 in inducing myocardial infarction through activation of the NF-κB signaling pathway
  141. Characterization of phenolic compounds and evaluation of anti-diabetic potential in Cannabis sativa L. seeds: In vivo, in vitro, and in silico studies
  142. Quantitative immunohistochemistry analysis of breast Ki67 based on artificial intelligence
  143. Ecology and Environmental Science
  144. Screening of different growth conditions of Bacillus subtilis isolated from membrane-less microbial fuel cell toward antimicrobial activity profiling
  145. Degradation of a mixture of 13 polycyclic aromatic hydrocarbons by commercial effective microorganisms
  146. Evaluation of the impact of two citrus plants on the variation of Panonychus citri (Acari: Tetranychidae) and beneficial phytoseiid mites
  147. Prediction of present and future distribution areas of Juniperus drupacea Labill and determination of ethnobotany properties in Antalya Province, Türkiye
  148. Population genetics of Todarodes pacificus (Cephalopoda: Ommastrephidae) in the northwest Pacific Ocean via GBS sequencing
  149. A comparative analysis of dendrometric, macromorphological, and micromorphological characteristics of Pistacia atlantica subsp. atlantica and Pistacia terebinthus in the middle Atlas region of Morocco
  150. Macrofungal sporocarp community in the lichen Scots pine forests
  151. Assessing the proximate compositions of indigenous forage species in Yemen’s pastoral rangelands
  152. Food Science
  153. Gut microbiota changes associated with low-carbohydrate diet intervention for obesity
  154. Reexamination of Aspergillus cristatus phylogeny in dark tea: Characteristics of the mitochondrial genome
  155. Differences in the flavonoid composition of the leaves, fruits, and branches of mulberry are distinguished based on a plant metabolomics approach
  156. Investigating the impact of wet rendering (solventless method) on PUFA-rich oil from catfish (Clarias magur) viscera
  157. Non-linear associations between cardiovascular metabolic indices and metabolic-associated fatty liver disease: A cross-sectional study in the US population (2017–2020)
  158. Knockdown of USP7 alleviates atherosclerosis in ApoE-deficient mice by regulating EZH2 expression
  159. Utility of dairy microbiome as a tool for authentication and traceability
  160. Agriculture
  161. Enhancing faba bean (Vicia faba L.) productivity through establishing the area-specific fertilizer rate recommendation in southwest Ethiopia
  162. Impact of novel herbicide based on synthetic auxins and ALS inhibitor on weed control
  163. Perspectives of pteridophytes microbiome for bioremediation in agricultural applications
  164. Fertilizer application parameters for drip-irrigated peanut based on the fertilizer effect function established from a “3414” field trial
  165. Improving the productivity and profitability of maize (Zea mays L.) using optimum blended inorganic fertilization
  166. Application of leaf multispectral analyzer in comparison to hyperspectral device to assess the diversity of spectral reflectance indices in wheat genotypes
  167. Animal Sciences
  168. Knockdown of ANP32E inhibits colorectal cancer cell growth and glycolysis by regulating the AKT/mTOR pathway
  169. Development of a detection chip for major pathogenic drug-resistant genes and drug targets in bovine respiratory system diseases
  170. Exploration of the genetic influence of MYOT and MB genes on the plumage coloration of Muscovy ducks
  171. Transcriptome analysis of adipose tissue in grazing cattle: Identifying key regulators of fat metabolism
  172. Comparison of nutritional value of the wild and cultivated spiny loaches at three growth stages
  173. Transcriptomic analysis of liver immune response in Chinese spiny frog (Quasipaa spinosa) infected with Proteus mirabilis
  174. Disruption of BCAA degradation is a critical characteristic of diabetic cardiomyopathy revealed by integrated transcriptome and metabolome analysis
  175. Plant Sciences
  176. Effect of long-term in-row branch covering on soil microorganisms in pear orchards
  177. Photosynthetic physiological characteristics, growth performance, and element concentrations reveal the calcicole–calcifuge behaviors of three Camellia species
  178. Transcriptome analysis reveals the mechanism of NaHCO3 promoting tobacco leaf maturation
  179. Bioinformatics, expression analysis, and functional verification of allene oxide synthase gene HvnAOS1 and HvnAOS2 in qingke
  180. Water, nitrogen, and phosphorus coupling improves gray jujube fruit quality and yield
  181. Improving grape fruit quality through soil conditioner: Insights from RNA-seq analysis of Cabernet Sauvignon roots
  182. Role of Embinin in the reabsorption of nucleus pulposus in lumbar disc herniation: Promotion of nucleus pulposus neovascularization and apoptosis of nucleus pulposus cells
  183. Revealing the effects of amino acid, organic acid, and phytohormones on the germination of tomato seeds under salinity stress
  184. Combined effects of nitrogen fertilizer and biochar on the growth, yield, and quality of pepper
  185. Comprehensive phytochemical and toxicological analysis of Chenopodium ambrosioides (L.) fractions
  186. Impact of “3414” fertilization on the yield and quality of greenhouse tomatoes
  187. Exploring the coupling mode of water and fertilizer for improving growth, fruit quality, and yield of the pear in the arid region
  188. Metagenomic analysis of endophytic bacteria in seed potato (Solanum tuberosum)
  189. Antibacterial, antifungal, and phytochemical properties of Salsola kali ethanolic extract
  190. Exploring the hepatoprotective properties of citronellol: In vitro and in silico studies on ethanol-induced damage in HepG2 cells
  191. Enhanced osmotic dehydration of watermelon rind using honey–sucrose solutions: A study on pre-treatment efficacy and mass transfer kinetics
  192. Effects of exogenous 2,4-epibrassinolide on photosynthetic traits of 53 cowpea varieties under NaCl stress
  193. Comparative transcriptome analysis of maize (Zea mays L.) seedlings in response to copper stress
  194. An optimization method for measuring the stomata in cassava (Manihot esculenta Crantz) under multiple abiotic stresses
  195. Fosinopril inhibits Ang II-induced VSMC proliferation, phenotype transformation, migration, and oxidative stress through the TGF-β1/Smad signaling pathway
  196. Antioxidant and antimicrobial activities of Salsola imbricata methanolic extract and its phytochemical characterization
  197. Bioengineering and Biotechnology
  198. Absorbable calcium and phosphorus bioactive membranes promote bone marrow mesenchymal stem cells osteogenic differentiation for bone regeneration
  199. New advances in protein engineering for industrial applications: Key takeaways
  200. An overview of the production and use of Bacillus thuringiensis toxin
  201. Research progress of nanoparticles in diagnosis and treatment of hepatocellular carcinoma
  202. Bioelectrochemical biosensors for water quality assessment and wastewater monitoring
  203. PEI/MMNs@LNA-542 nanoparticles alleviate ICU-acquired weakness through targeted autophagy inhibition and mitochondrial protection
  204. Unleashing of cytotoxic effects of thymoquinone-bovine serum albumin nanoparticles on A549 lung cancer cells
  205. Erratum
  206. Erratum to “Investigating the association between dietary patterns and glycemic control among children and adolescents with T1DM”
  207. Erratum to “Activation of hypermethylated P2RY1 mitigates gastric cancer by promoting apoptosis and inhibiting proliferation”
  208. Retraction
  209. Retraction to “MiR-223-3p regulates cell viability, migration, invasion, and apoptosis of non-small cell lung cancer cells by targeting RHOB”
  210. Retraction to “A data mining technique for detecting malignant mesothelioma cancer using multiple regression analysis”
  211. Special Issue on Advances in Neurodegenerative Disease Research and Treatment
  212. Transplantation of human neural stem cell prevents symptomatic motor behavior disability in a rat model of Parkinson’s disease
  213. Special Issue on Multi-omics
  214. Inflammasome complex genes with clinical relevance suggest potential as therapeutic targets for anti-tumor drugs in clear cell renal cell carcinoma
  215. Gastroesophageal varices in primary biliary cholangitis with anti-centromere antibody positivity: Early onset?
Downloaded on 29.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/biol-2022-0934/html?lang=en
Scroll to top button