Effect of Jobelyn® on intruder- and isolation-induced aggressive behavior in mice
-
Solomon Umukoro
,
Itivere Adrian Omogbiya
Abstract
Background: Aggression is a violent behavior emitted against another organism that may lead to its harm or death and thus is of public health significance, which necessitates the search for agents with anti-aggressive property. This study investigated the effect of Jobelyn® (JB), a unique African polyherbal formulation, on intruder- and isolation-induced aggressive behaviors in mice.
Methods: Male mice that showed aggression after being housed individually with female counterparts for 3 weeks or kept in isolation for 4 weeks were treated orally (p.o.) with JB (5, 10 or 50 mg/kg), haloperidol (HP) (1 mg/kg), fluoxetine (FL) (10 mg/kg), p-chlorophenylalanine (PCPA) (20 mg/kg), mianserin (MS) (50 mg/kg) or distilled water (10 mL/kg) 60 min before being tested for aggression. Interaction studies involving oral administration of PCPA (20 mg/kg), FL (10 mg/kg) or MS (50 mg/kg) to aggressive mice that had received JB (5 or 10 mg/kg, p.o.) 30 min earlier were assessed. The effect of JB (5, 10 or 50 mg/kg, p.o.) on defensive behaviors was also evaluated.
Results: JB (5, 10 or 50 mg/kg) decreased aggressive behaviors without impairing the defensive mechanisms of mice. PCPA (20 mg/kg), an inhibitor of 5-hydroxytryptamine (5-HT) biosynthesis, increased aggressive responses and reduced the anti-aggressive effect of JB. FL (10 mg/kg), a 5-HT reuptake inhibitor, significantly suppressed aggression but did not alter the effect of JB on aggression. MS (50 mg/kg), a 5-HT receptor antagonist, reduced aggression and enhanced the effect of JB on aggression.
Conclusions: These findings suggest that JB has anti-aggressive activity, which may be related to the enhancement of serotonergic system.
We thank Mr. Adegoke for his technical assistance.
Conflict of interest statement
Authors’ conflict of interest disclosure: The authors stated that there are no conflicts of interest regarding the publication of this article.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
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©2013 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Masthead
- Masthead
- Review
- Heat: not black, not white. It’s gray!!!
- Original Articles
- Distribution of performance-related gene polymorphisms (ACTN3 R577X and ACE ID) in different ethnic groups of the Indian Army
- Birth month and longevity: birth month of victims of sudden (SCD, ≤1 h) and rapid (RCD, ≤24 h) cardiac deaths
- Hyperpolarization-activated cyclic nucleotide-gated 2 (HCN2) polymorphism is associated with chronic inflammatory periodontitis. A cross-sectional study
- The effect of coadministration of α-tocopherol and ascorbic acid on arsenic trioxide-induced testicular toxicity in adult rats
- Effect of acute immobilization stress with or without a heme oxygenase inducer on testicular structure and function in male albino rats
- Effect of Jobelyn® on intruder- and isolation-induced aggressive behavior in mice
- Dichloroacetate at therapeutic concentration alters glucose metabolism and induces regulatory T-cell differentiation in alloreactive human lymphocytes
- Antinociceptive, anti-inflammatory and antiulcerogenic activities of ethanol root extract of Strophanthus hispidus DC (Apocynaceae)
- Acrolein-induced inflammatory signaling in vascular smooth muscle cells requires activation of serum response factor (SRF) and NFκB
- Nephroprotective activity of Cocculus hirsutus leaf extract in 5/6 nephrectomized rat model
- Toxicological evaluations of methanolic extract of Moringa oleifera leaves in liver and kidney of male Wistar rats
- Nevirapine induces testicular toxicity in Wistar rats: reversal effect of kolaviron (biflavonoid from Garcinia kola seeds)
- Toxicity of Chevron Escravos crude oil and chemical dispersant on guinea pig testicular function
- Jobelyn® pretreatment ameliorates symptoms of psychosis in experimental models
