In our study, we aimed to evaluate the effects of leaves extract on rat paraoxonase 1 (rPON1) and catalase (rCAT) activities in alloxan-induced diabetic rats. Our study included three groups; group C (control, n = 5); group D (diabetic, n = 5); and group DM ( extract-supplemented diabetic rats, n = 5). Daily oral administration of extract at 200 mg/kg doses produced an increase in endogenous antioxidants.
View Article and Find Full Text PDFThe increasing prevalence of diabetes continues to be a major health issue worldwide. Alteration of mitochondrial electron transport chain is a recognized hallmark of the diabetic-associated decline in liver bioenergetics; however, the molecular events involved are only poorly understood. is used for the treatment of diabetes.
View Article and Find Full Text PDFToxic agents can interfere with the male reproductive system at many targets. One of the major unresolved questions concerning male infertility is identification of its molecular origins. Clinical and animal studies indicate that abnormalities of spermatogenesis result from exposure to three toxic metals (lead acetate, cadmium chloride, and arsenic trioxide), but the effects on primary spermatocyte DNA of the male rat after chronic exposure to these metals have not been identified.
View Article and Find Full Text PDFPurpose: The aim of this work was to study the effects of prolonged exposure to lead on the threshold of experimental seizures induced by pentylenetetrazole (PTZ).
Methods: The 120 Wistar male rats were allocated randomly into four groups; (A) controls, and lead-treatment groups (B, C, and D) that received lead acetate in the drinking water for a period of 30 days at concentrations of 250, 500, and 1,000 ppm, respectively. After exposure, a trial of PTZ-induced seizures was conducted in all groups, and blood contents of lead were determined by atomic absorption spectrophotometry.
It is well known that lead can affect several cognitive abilities in developing animals. In this work, we investigate the effects of different sub-chronic lead doses (0, 65, 125, 250 and 500 ppm of lead acetate in their drinking water for 14 days) in the performance of male adult rats in a water maze, cue maze and inhibitory avoidance tasks. We found that the acquisition of these tasks was not affected by lead, however, the highest dosage of lead (500 ppm) impaired memory consolidation in spatial and inhibitory avoidance tasks, but not in cue maze task while the 250 ppm dose only affected retrieval of spatial memory.
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