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Effects of melatonin on testis histology, oxidative stress and spermatogenesis after experimental testis ischemia-reperfusion in rats



Effects of melatonin on testis histology, oxidative stress and spermatogenesis after experimental testis ischemia-reperfusion in rats



European Review for Medical and Pharmacological Sciences 16(5): 582-588



Testicular torsion due to oxidative stress results in infertility and testicular damage which can be preventable an important health problem worldwide. The purpose of the present study was to investigate the changes of malondialdehyde (MDA), total antioxidant status (TAS), total oxidant status (TOS) levels; histopathological alterations; morphology, concentration and motilities of the sperm in post ischemic reperfused (I/R) testis tissue. Forty adult male Wistar rats were carried out and were randomized to five groups; (1) Control group, (2) Ipsilateral left testis ischemia, (3) Melatonin plus ipsilateral left testis ischemia, (4) Contralateral right testis ischemia, 5. Melatonin plus contralateral right testis ischemia. After 1 h ischemia and 24 h perfusion; MDA, TAS and TOS levels were measured, histopathological alterations were determined using by Johnsen's score (JS) and sperm morphology, concentration, motility were examined. MDA, TAS and TOS levels of the testis tissue did not change in all groups (p > 0.05 for all). JS was decreased in I/R group and melatonin treatment reversed histopathological changes and increased JS both in ipsilateral and contralateral testis. Abnormal sperm rate significantly increased in I/R group and melatonin administration changed abnormal sperm rate to normal. As a result, the present study demonstrated that testicular damage occurs following I/R without an increase of MDA, TAS and TOS levels. Our results also suggested that melatonin is a potent antioxidant agent in preventing testicular I/R injury, as shown by increased JS and changed abnormal sperm rate.

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Accession: 052875475

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PMID: 22774397


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