AIMS:This study investigates the efficacy of ethanolic extract of Sesamum indicum (EES), vitamin C (VC), and EES + VC in promoting fertility and finding a possible link between their profertility effects and their antioxidant activities.MATERIALS AND METHODS:Forty adult male Wistar rats [Body weight (BW) 186.56 ± 0.465 g] were randomly analyzed into four groups of ten rats each: Control, EESG (EES only), VCG (vitamin C only), and EES + VCG (EES in conjunction with vitamin C). Control was given 5 ml/kg BW/day of normal saline orally; EESG was administered 0.3 g/kg BW/day of EES; VCG was administered 15 mg/kg BW/ day of VC; while EES + VCG was administered both 0.3 g/kg BW/day of EES and 15 mg/kg BW/day of VC. All treatments were for 10 weeks.STATISTICAL ANALYSIS USED:Independent-sample T test was used to analyze the obtained results.RESULTS:The results obtained showed that EES, VC, and more importantly EES + VC are capable of significantly increasing BW gain, seminal parameters, testosterone level, and body antioxidant activities.CONCLUSIONS:These findings lead to the conclusion that EES + VC as well as ESS and VC promote fertility due to both their testosterone-increasing effects and their antioxidant effects.
Summary: Synthetic Glucocorticoids are commonly administered to early low-birth weight infants to prevent the onset of chronic lung disease. During this period, the brain is undergoing significant structural and functional changes and is therefore particularly vulnerable to external influences. It has been observed that steroids administered postnatally may have transient retarding effect on learning and memory functions, and that animal age and sex may modify such effects. This study aims to illustrate the effect of early administration of glucocorticoids on learning and spatial memory. Wistar rat pups were grouped into two (control and treatment) of six pups each. 0.5mg/kg of dexamethasone was administered to four day old pups for a period of three days. At 35 days the pups were subjected to spatial memory testing. Spatial memory was assessed using a Y-Maze. It was observed that the animals in the treatment group preferred to return to the start arm or explore the other arm. This is indicative of impaired spatial memory. Steroids administered postnatally may have transient retarding effect on learning and memory functions.
Carbamazepine (CBZ) as a drug used in the treatment of epilepsy and neuropathic pain has been shown to facilitate the effects of free radicals. Resveratrol (RESV), known as 3,5,4′-trihydroxystilbene, is found in grapes and other plant products. It effectively scavenges free radicals and other oxidants. Vitamin E (Vit E) is a lipid soluble antioxidant present in all cellular membranes. The present study assessed the combined effect of vitamin E and resveratrol on hematological markers of carbamazepine-induced oxidative stress. Adult male Wistar rats (n = 25) were randomly allotted to five groups: Group I (control) received distilled water, Group II received CBZ (50 mg/kg), Group III received CBZ(500mg/kg) and Vitamin E (200 mg/kg); Group IV received of CBZ(50 mg/kg), and resveratrol (20 mg/kg); Group V received CBZ (50 mg/kg) and the coadministration of vitamin E (200 mg/kg) and resveratrol (20 mg/kg). Administration was done orally daily for 45 day after which animals were sacrificed and blood samples were used for biochemical analyses. Hematological parameters such as Red Blood Cell Count (RBC), White Blood Cell Count (WBC), Platelets Count (PC) and Osmotic Fragility (OF) were determined. Combination of RESV and Vit E significantly increased RBC, WBC PCV and decreased OF compared to the CBZ, RESV and Vit E treated groups respectively. In conclusion, co administration of RESV and Vit E resulted in better protective effect on CBZ induced hematological changes in rats than their respective doses of RESV and Vit E.
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