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Background: Vancomycin (VCM) is an important antibiotic that is active against gram-positive cocci, and its nephrotoxicity remain as a major problem in clinical use. Objectives: This study was designed to investigate the effect of Nasturtium officinale hydro-alcoholic extract (NOE) and vitamin E aganist VCM-induced nephrotoxicity in adult male wistar rats. Methods: A total of 36 animals were randomly divided into 6 equal groups (n = 6) including 1, control group; 2, VCM group; 3, VCM + NOE (250 mg/kg) group; 4, VCM + NOE (500 mg/kg) group; 5, VCM + vitamin E (250 mg/kg) group; and 6, VCM + vitamin E (500 mg/kg) group. VCM (200 mg kg -1 i.p.) was given every 12 hours for 7 consecutive days. NOE and vitamin E were orally given to rats 30

Purpose: The present study investigates the effects of myricitrin and solid lipid nanoparticle (SLN) containing myricitrin on the reproductive system of type 2 diabetic male mice. Materials and Methods: In this experimental study, SLN containing myricitrin was prepared by the cold homogenization method. Then, 90 adult male Naval Medical Research Institute mice were divided into 9 groups (n=10): control, vehicle, diabetic, diabetic+myricitrin or SLN containing myricitrin 1, 3, and 10 mg/kg. Diabetes was induced by streptozotocin (65 mg/kg) 15 minutes after nicotinamide (120 mg/kg) injection. Myricitrin and SLN containing myricitrin administered during 1 month. At the 34th days of the experiment, plasma and tissue samples were taken for experimental assessments. Results: Testis weight and volume decreased in the diabetic group. These variables increased in diabetic treated mice by a high dose of myricitrin or all doses of SLN containing myricitrin (p<0.05). Total antioxidant capacity and superoxide dismutase levels decreased in diabetic mice, and administration of myricitrin 10 mg/kg or all doses of SLN containing myricitrin increased them (p<0.05). Luteinizing hormone, Follicle-stimulating hormone, testosterone, and sperm count decreased in the diabetic group, treatment with a high dose of myricitrin or all doses of SLN containing myricitrin recovered them (p<0.05). Diabetes induced vacuoles and apoptosis in testicular cells, meanwhile myricitrin and SLN containing myricitrin improved them (p<0.05). Conclusions: Diabetes induced reproductive problem via increased oxidative stress and decrease antioxidant capacity, administration of myricitrin or SLN containing myricitrin improved them. Further, SLN containing myricitrin was more potent than myricitrin.

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