1. Resveratrol attenuates metabolic, sperm, and testicular changes in adult Wistar rats fed a diet rich in lipids and simple carbohydrates
Asian Journal of Andrology 2019;21(2):201-207
High-fat diets affect male reproduction and sexual function. Therefore, we evaluated the effects of prolonged resveratrol administration on the metabolic, sperm, and testicular parameters of rats fed a cafeteria diet. Male Wistar rats were divided at weaning into control (C, n = 20) and cafeteria (CAF, n = 16) groups. At 3 months, half of them were given daily supplementations of resveratrol (C-R, n = 10; CAF-R, n = 8) at a dosage of 30 mg kg-1 body mass for 2 months. Animals were killed at 5 months of age, and blood, spermatozoa, and testes were collected for further analysis. Data were analyzed by one-way ANOVA, and P < 0.05 was considered statistically significant. The CAF diet promoted hyperglycemia (P < 0.0001), and treatment with resveratrol reversed this condition (P < 0.0001). The CAF diet reduced sperm viability and motility, while resveratrol improved these parameters (P < 0.05). Regarding testicular morphology, the height of the seminiferous epithelium was reduced in the CAF group compared with that of the C group (P = 0.0007). Spermatogenic cell proliferation was also reduced in the CAF group compared with that of the C group. However, the CAF-R showed an increase in cell proliferation rate compared with that of the untreated CAF group (P = 0.0024). Although it did not modify body mass, the consumption of a CAF diet promoted hyperglycemia, adverse testicular morphology remodeling, and abnormal sperm, which were attenuated by treatment with resveratrol, thus suggesting a protective effect of this antioxidant on spermatogenesis.
2.Epidermodysplasia Verruciformis-like skin eruption in HIV-positive patient
Juliana C. Boza ; Juliano Peruzzo ; Fabiana Bazanella de Oliveira ; Fernanda Luca Nazar ; Renato Marchiori Bakos
Tropical Medicine and Health 2014;():-
Epidermodysplasia Verruciformis-like skin eruption is a rare syndrome that usually occurs in patients with immunodeficiency, predisposing to infections with human papilloma β virus (HPV). We report here a patient with HIV presenting with this syndrome.
3.Epidermodysplasia Verruciformis-like Skin Eruption in an HIV-positive Patient
Juliana C. Boza ; Juliano Peruzzo ; Fabiana Bazanella de Oliveira ; Fernanda Luca Nazar ; Renato Marchiori Bakos
Tropical Medicine and Health 2014;42(4):185-186
Epidermodysplasia Verruciformis-like skin eruption is a rare syndrome that usually occurs in patients with immunodeficiency, predisposing them to infections with human papilloma β virus (HPV). We report here an HIV patientpresenting with this syndrome.
4.Resveratrol attenuates metabolic, sperm, and testicular changes in adult Wistar rats fed a diet rich in lipids and simple carbohydrates.
Fabiana A DE OLIVEIRA ; Waldemar S COSTA ; Francisco J B SAMPAIO ; Bianca M GREGORIO
Asian Journal of Andrology 2019;21(2):201-207
High-fat diets affect male reproduction and sexual function. Therefore, we evaluated the effects of prolonged resveratrol administration on the metabolic, sperm, and testicular parameters of rats fed a cafeteria diet. Male Wistar rats were divided at weaning into control (C, n = 20) and cafeteria (CAF, n = 16) groups. At 3 months, half of them were given daily supplementations of resveratrol (C-R, n = 10; CAF-R, n = 8) at a dosage of 30 mg kg-1 body mass for 2 months. Animals were killed at 5 months of age, and blood, spermatozoa, and testes were collected for further analysis. Data were analyzed by one-way ANOVA, and P < 0.05 was considered statistically significant. The CAF diet promoted hyperglycemia (P < 0.0001), and treatment with resveratrol reversed this condition (P < 0.0001). The CAF diet reduced sperm viability and motility, while resveratrol improved these parameters (P < 0.05). Regarding testicular morphology, the height of the seminiferous epithelium was reduced in the CAF group compared with that of the C group (P = 0.0007). Spermatogenic cell proliferation was also reduced in the CAF group compared with that of the C group. However, the CAF-R showed an increase in cell proliferation rate compared with that of the untreated CAF group (P = 0.0024). Although it did not modify body mass, the consumption of a CAF diet promoted hyperglycemia, adverse testicular morphology remodeling, and abnormal sperm, which were attenuated by treatment with resveratrol, thus suggesting a protective effect of this antioxidant on spermatogenesis.
Animals
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Antioxidants/therapeutic use*
;
Blood Glucose
;
Cell Proliferation/drug effects*
;
Diet, High-Fat
;
Hyperglycemia/metabolism*
;
Lipids/blood*
;
Male
;
Rats
;
Rats, Wistar
;
Resveratrol/therapeutic use*
;
Sperm Motility/drug effects*
;
Spermatozoa/metabolism*
;
Testis/metabolism*