Efecto de los efluentes domésticos en el crecimiento y los parámetros hematológicos de Clarias gariepinus (Burchell, 1822) (Piscis; Clariidae)

This research determines the toxicological effect of domestic effluents on blood parameters of Clarias gariepinus. Four treatment were set up: Control, 30, 50 and 70mlL-1 . Each treatment was done in triplicate. There were behavioral changes in fishes exposed to 50 and 70 mlL-1 of the effluent while none was observed in Control fishes and fishes undergone 30 mlL-1. There were significant differences in the Mean Weight and Mean Length Gain between the fishes exposed to treatment and Control fishes. There was significant reduction in the red blood cells (p<0.05). White blood cells, hematocrit, mean corpuscular volume and haemoglobin in the fishes exposed were significantly (p<0.05) higher than Control. Results from this study suggests that domestic effluents can negatively affect the growth and haematology of fishes.Esta investigación determina el efecto toxicológico de efluentes domésticos en los parámetros sanguíneos de Clarias gariepinus. Se realizaron cuatro tratamientos: Control, 30, 50 y 70 mlL-1. Cada tratamiento fue por triplicado. Se produjeron cambios de comportamiento en los peces expuestos a 50 y 70 mlL-1 del efluente, y no se observó ninguno en los peces Control y los tratados con 30 mlL-1. Hubo diferencias significativas en la ganancia media de peso y longitud entre los peces expuestos al tratamiento y el control. Hubo una reducción significativa (p<0.05) de los glóbulos rojos. Los glóbulos blancos, el hematocrito, el volumen corpuscular medio y la hemoglobina de los peces expuestos fueron significativamente más altos que en el control (p<0,05). Los resultados de este estudio sugieren que los efluentes domésticos pueden afectar

Cardio-nephrotoxicity mediated by Echis ocellatus venom and its amelioration through kaempferol’s suppressive effect on oxidative stress, inflammation, and apoptosis expression

Abstract Background Echis ocellatus venom toxins have the ability to impact multiple organ systems subsequent to envenomation. Kaempferol have been reported to have several therapeutic benefits. In this study, the therapeutic value of kaempferol was investigated in relation to the cardio-nephrotoxicity in rats resulting from E. ocellatus envenoming. Methods Fifty male wistar rats were allotted unbiased into five groups (n = 10) for this study. Group 1 was the control, while rats in groups 2 to 5 were envenomed with LD50 of E. ocellatus venom (0.22 mg/kg bw; i.p.). Group 2 was not treated after envenomation while groups 3, 4 and 5 were treated with polyvalent antivenom, 4 and 8 mg/kg of kaempferol, respectively. Results E. ocellatus envenomation caused considerable reduction in organ weight and relative organ weight in the envenomed untreated rats. The venom induced intense oxidative stress, inflammation, apoptotic damage to the cardiac and renal tissues accompanied with severe histomorphology in the organ tissues of untreated envenomed rats. In contrast, kaempferol treatment post-envenomation attenuated the venom-induced cardio-nephrotoxic responses in a dose dependent effect. Kaempferol substantially (p < 0.05) decreased malondialdehyde levels while enhancing reduced glutathione levels and superoxide dismutase and glutathione peroxidase activities in the heart and kidney of envenomed treated rats. Treatment of envenomed rats with kaempferol successfully decreased nitric oxide levels and myeloperoxidase activity. Overexpression of apoptotic caspase 3 and caspase 9 in cardiac and renal tissues were suppressed by kaempferol (p < 0.05). The histopathological result supports kaempferol’s ameliorative ability by convalescing the severe morphological alterations of cardiac and renal tissues induced by the venom. Conclusion Findings elucidate the significance of kaempferol as promising agent in the management of cardio-nephrotoxicity resulting from snakebite envenoming

Kaempferol mitigates reproductive dysfunctions induced by Naja nigricollis venom through antioxidant system and anti-inflammatory response in male rats

Abstract Naja nigricollis Venom (NnV) contains complex toxins that affects various vital systems functions after envenoming. The venom toxins have been reported to induce male reproductive disorders in envenomed rats. This present study explored the ameliorative potential of kaempferol on NnV-induced male reproductive toxicity. Fifty male wistar rats were sorted randomly into five groups (n = 10) for this study. Group 1 were noted as the control, while rats in groups 2 to 5 were injected with LD50 of NnV (1.0 mg/kg bw; i.p.). Group 2 was left untreated post envenomation while group 3 was treated with 0.2 ml of polyvalent antivenom. Groups 4 and 5 were treated with 4 and 8 mg/kg of kaempferol, respectively. NnV caused substantial reduction in concentrations of follicle stimulating hormone, testosterone and luteinizing hormone, while sperm motility, volume and counts significantly (p < 0.05) decreased in envenomed untreated rats. The venom enhanced malondialdehyde levels and substantially decreased glutathione levels, superoxide dismutase and glutathione peroxidase activities in the testes and epididymis of envenomed untreated rats. Additionally, epididymal and testicular myeloperoxidase activity and nitric oxide levels were elevated which substantiated severe morphological defects noticed in the reproductive organs. However, treatment of envenomed rats with kaempferol normalized the reproductive hormones with significant improvement on sperm functional parameters. Elevated inflammatory and oxidative stress biomarkers in testis and epididymis were suppressed post kaempferol treatment. Severe histopathological lesions in the epididymal and testicular tissues were ameliorated in the envenomed treated groups. Results highlights the significance of kaempferol in mitigating reproductive toxicity induced after snakebite envenoming