abstract background: in this study we aimed to evaluate the impact of chronic exposure to the gly-phosate (gp) on rat’s testicular tissue and sperm parameters. objective: testicular tissue, morphology of sperms and testosterone level in serum of mature male rats were analyzed. materials and methods: animals were divided into two test and control-sham groups. the test group was subdivided into 4...

Methotrexate (MTX) as a chemotherapeutic agent, has adverse effects on reproductive organs by enhancing oxidative stress. In this study, the protective effects of Cornus mas fruit extract (CMFE) against MTX side effects were evaluated. Forty-eight mature male NMRI mice were divided into six groups: group 1 (control) received 0.10 mL per day of normal saline intraperitoneally (IP), grou...

Pythium irregulare oomycetes adapts with environmental changes including crude oil concentration by changing the composition of lipids in the cytoplasmic membrane and providing the required characteristics for adaptation in improper and stressful environmental situations. It was found that cultivation of Pythium irregulare LX oomycetes in the nutrient media with different concentrations of crud...

The disc gel electrophoretic patterns obtained with skin test-active (mycelial and yeast) antigens of Blastomyces dermatitidis were compared. As would be expected, the blastomycins (mycelial-phase) and the cytoplasmic ultrafiltrates (yeast-phase) were heterogeneous mixtures containing proteins, glycoproteins, lipoproteins, and carbohydrates. The skin test-active cytoplasmic ultrafiltrates and t...

A histochemical study of the fat body attached to the male accessory reproductive glands of the mature desert locust shows that most of the fat body is occupied by neutral fat and probably a little acidic lipid. The cytoplasmic strands between the enormous fat globules contain large deposits of glycogen and some protein. An electron-microscopic study of the mature fat body demonstrates that the...

pythium irregulare oomycetes adapts with environmental changes including crude oil concentration by changing the composition of lipids in the cytoplasmic membrane and providing the required characteristics for adaptation in improper and stressful environmental situations. it was found that cultivation of pythium irregulare lx oomycetes in the nutrient media with different concentrations of crud...

With procedures developed previously in this laboratory, the various layers of the cell wall of a gram-negative bacterium, a marine pseudomonad (ATCC 19855), were removed completely giving rise to true protoplasts. Membranes were isolated from the protoplasts formed. After treatment with ribonuclease, deoxyribonuclease, and washing, the membranes isolated were shown by electron microscopy and c...