Histopathological and Immunohistochemical Evaluation of Methotrexate-Induced Gonadal Damage in Rats: Role of SCF, mTOR, and SIRT-1.

Objective: Methotrexate (MTX) is a highly effective chemotherapy for cancer. This drug has a gonadotoxic effect, mainly in the testes and ovaries. Our study used histopathological and immunohistochemical methods to assess the potential damage to testicular and ovarian tissue caused by MTX use.

Protective effect of melatonin on blood-brain barrier damage caused by Endotoxemia.

Objective: Endotoxins, products of Gram-negative bacteria, are the primary cause of blood-brain barrier (BBB) damage. In the present study, we aimed to investigate the possible neuroprotection mechanisms of melatonin on BBB damage induced by endotoxemia.

Methods: Adult, female Sprague-Dawley rats ( = 42) were separated into four random groups as a control group and three treatment groups.