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    The Effects of Caffeic Acid Phenethyl Ester and Ellagic Acid on the Levels of Malondialdehyde, Reduced Glutathione and Nitric Oxide in the Lung, Liver and Kidney Tissues in Acute Diazinon Toxicity in Rats
    (Medwell Online, 2011) Alp, Harun; Aytekin, Ismail; Atakisi, Onur; Hatipoglu, Namik Kemal; Basarali, Kemal; Ogun, Metin; Buyukbas, Sadik
    The aim of this study was to investigate the effects of Caffeic Acid Phenethyl Ester (CAPE) and Ellagic Acid (EA) on acitivities of Malondialdehyde (MDA), reduced Glutathione (GSH) and Nitric Oxide (NO) in rat lung, liver and kidney tissues in acute Diazinon (DI) toxicity. Six groups of 6 Sprague Dawley rats were used comprising control, CAPE, EA, DI control, DI+CAPE and DI+EA. Tissue samples were analysed for GSH, MDA and NO levels in lung, liver and kidney tissues. Biochemical parameters were measured colormetrically by spectrophotometer. Control, CAPE and EA groups showed no statistically significant difference whereas DI+medication groups revealed that CAPE and EA increased the level of GSH in liver tissue by blocking the DI effect. NO levels in lung, liver and kidney tissues were significantly increased by DI but CAPE and EA attenuated those levels. In DI+medication groups, MDA levels showed no significant change in kidney and liver tissues but in lung tissues, CAPE and EA reduced the MDA level by blocking the DI effect. It was concluded that CAPE and EA which showed similar effects to each other could be used for protection and support against oxidative stress caused by acute DI intoxication.
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    Effects of Sildenafil Citrate, Isoniazid, and Streptomycin on Testicular Tissue and Epididymal Semen Quality in Rats
    (Elsevier Science Inc, 2012) Alp, Harun; Cirit, Umut; Tas, Muzaffer; Rifaioglu, Murat Mehmet; Hatipoglu, Namik Kemal; Aytekin, Ismail; Yucel, Mehmet
    OBJECTIVE To evaluate the effects of isoniazid (INH) and streptomycin (STR) on epididymal semen quality and testicular tissue, and to evaluate the protective effect of sildenafil citrate (SC) on possible testicular toxicity induced by STR and INH in rats. METHODS Eighty adult male Sprague-Dawley rats were divided randomly into 8 groups including control, SC, INH, STR, STR + INH, SC + INH, SC + STR, and SC + INH + STR. After 45 days of treatment, the reproductive organ weights, epididymal semen quality, testicular histopathological findings, levels of serum nitric oxide, testosterone, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) were investigated. RESULTS SC significantly increased the epididymal sperm motility and concentration, and the levels of FSH, LH, and testosterone. The STR group had a significantly higher percentage of sperm head defect than the control group (P < .05). The INH group had lower Johnsen Testicular Biopsy Score than the control group (P < .001). Although SC and INH treatment alone did not affect the epididymal semen quality negatively, the SC + INH group had significantly higher spermatozoon tail and total morphologic defect ratios than the control group (P < .05). CONCLUSION It has been concluded from this study that (1) SC has positive effects on spermatogenesis, sperm production, and semen quality; (2) STR affected the testicular biopsy score and spermatozoon head morphology negatively, but positively affected the other spermatologic traits; (3) INH did not effect the epididymal semen quality negatively, but decreased testicular biopsy score; and (4) SC can prevent the spermatozoon head defects induced by STR and can decrease the testicular toxicity induced by INH. UROLOGY 80: 953.e9-953.e14, 2012. (C) 2012 Elsevier Inc.