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1.
Andrologia ; 53(9): e14176, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34309867

RESUMO

Exposure to acrylamide (Ac) through food is almost inevitable and this kind of toxicity may cause lifelong harm. In present study, we researched effects of Crocin (Cr) on testis histopathology in Ac-induced testis of rats. Adult male rats were grouped as: group 1, 1 ml saline only; group 2, 50 mg/kg Cr only; group 3, 25 mg/kg Ac only and group 4, 25 mg/kg Ac + 50 mg/kg Cr. All administrations were given as 1 ml/day by gavage for 21 days. It was found that Ac adversely influenced the levels of FSH, testosterone and LH in the blood serum; malondialdehyde (MDA), total antioxidant status (TOS), oxidative stress index (OSI)/ glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), total antioxidant status (TAS) oxidant/antioxidant parameters in testis tissue (p < .01) and the histopathological parameters like Johnson's score, seminiferous tubule diameter, seminiferous epithelial height and H-score for caspase-3 immunoreactivity. In contrary, Cr treatment resulted in increase in testosterone, follicle stimulating hormone (FSH), luteinizan hormone (LH) levels and SOD, CAT, GSH, TAS levels (p < .01) and improved all the histopathological changes. In conclusion, Cr has a promising protective potential against Ac-caused toxic damages in testicular tissue.


Assuntos
Acrilamida , Testículo , Acrilamida/toxicidade , Animais , Antioxidantes/metabolismo , Antioxidantes/farmacologia , Carotenoides/farmacologia , Catalase/metabolismo , Masculino , Malondialdeído/metabolismo , Estresse Oxidativo , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo , Testículo/metabolismo
2.
Biotech Histochem ; 96(1): 48-59, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33325762

RESUMO

Bleomycin (BLM) is a chemotherapeutic agent that can cause pulmonary fibrosis. Little is known about the possible protective role of the CB2 receptor agonist, AM1241. We investigated the effects of CB2 receptor activation by AM1241 on BLM induced lung fibrosis in a rat model. BLM was administered via the trachea. Adult female Wistar rats were divided into five groups: saline (control group), BLM (BLM group), CB2 agonist (AM1241) + BLM (BLMA group), CB2 antagonist (AM630) and CB2 agonist (AM1241) + BLM (BLMA + A group), and vehicle (dimethylsulfoxide) + BLM (BLM + vehicle group). Hydroxyproline, collagen type 1, total protein, glutathione (GSH), malondialdehyde (MDA), interleukin (IL)-6 and tumor necrosis factor (TNF)-α levels were measured in lung fibrosis and control tissue using standard methods. We investigated the histopathology of lung tissue to determine the extent of fibrosis. We found significantly higher levels of hydroxyproline, TNF-α, IL-6 and total protein in the BLM group compared to the BLMA group. The level of GSH also was higher in the BLMA group compared to the BLM group. Inflammation and fibrotic changes were significantly reduced in the BLMA group. Our findings suggest that CB2 receptor activation provided protection against BLM induced pulmonary fibrosis by suppressing oxidative stress and increasing cytokines.


Assuntos
Bleomicina , Fibrose Pulmonar , Animais , Bleomicina/toxicidade , Canabinoides , Feminino , Fibrose Pulmonar/induzido quimicamente , Ratos , Ratos Wistar , Receptores de Canabinoides
3.
Biotech Histochem ; 95(4): 305-316, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32013590

RESUMO

We investigated the effects of α-lipoic acid (AL) and α-tocopherol (AT) on renal histopathology in a streptozotocin (STZ) induced diabetic rat model. Adult male rats were divided into six groups: group 1, saline only; group 2, AL only; group 3, AT only; group 4, STZ only; group 5, STZ + AL; group 6 STZ + AT. Experimental diabetes was induced by STZ. AL and AT were administered for 15 days. Kidney sections were examined using a light microscope after hematoxylin and eosin (H & E), periodic acid-Schiff (PAS) and caspase-3 staining. Histological damage to glomeruli, tubule epithelial cells and basement membrane was observed in group 4. Administration of AT and AL reduced renal injury in the diabetic rats. Group 5 exhibited a greater curative effect on diabetic rats than group 6. AT and AL may be useful for preventing diabetic renal damage.


Assuntos
Diabetes Mellitus Experimental/complicações , Nefropatias Diabéticas/prevenção & controle , Microscopia , Ácido Tióctico/farmacologia , alfa-Tocoferol/farmacologia , Animais , Antioxidantes/farmacologia , Masculino , Distribuição Aleatória , Ratos , Ratos Wistar
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