Results: 55

Diluente Tris suplementado com óleo de Mauritia flexuoxa sobre a qualidade do sêmen caprino após a criopreservação

Rev. bras. ciênc. vet; 27 (1), 2020
Objetivou-se verificar os efeitos, nos parâmetros espermáticos, na integridade mitocondrial, acrossomal e de membrana em células espermáticas, desencadeados pelo uso do Tris (Tris hidroximetil aminometano) suplementado com óleo de Mauritia flexuoxacomo diluente para criopreservação d...

Acute exposure to hyperosmotic conditions reduces sperm activation by urine in the yellowtail tetra Astyanax altiparanae, a freshwater teleost fish

In freshwater fish with external fertilization, sperm sampling can be contaminated with urine, which triggers motility and gives rise to decreased fertilization success. The maintenance of freshwater fish in hyperosmotic conditions may reduce urine production and improve sperm quality. Thus, the aim of t...

Efecto del Cigarrillo Electrónico sobre los Espermatozoides Humanos: Aproximación in vitro

Introducción Los cigarrillos electrónicos (E-Cig) aparecieron en el mercado hace 15 años como una alternativa para combatir el consumo de tabaco, un problema de salud pública, sin embargo, su efecto sobre la salud reproductiva no ha sido completamente evaluado. El objetivo del presente estudio, fue...

Efecto del zumo de sandía (citrullus lanatus) en el estrés oxidativo en espermatozoides humanos

INTRODUCCIÓN: Las alteraciones reproductivas de causa masculina relacionadas con el estrés oxidativo son cada día más estudiadas y dan cuenta de causas de infertilidad diagnosticada como idiopáticas. El objetivo del presente trabajo fue evaluar el efecto del zumo de sandía sobre los parámetros sem...

Bovine semen thermoresistance tests and their correlation with pregnancy rates after fixed-time artificial insemination

The objective of the study was to determine whether or not there is a correlation between thermoresistance tests (TT) after semen thawing and pregnancy rate (PR) after fixed-time artificial insemination (FTAI). Four different TT were performed on ten samples used for AI; a rapid test (RTT) (30min / 46°C...

Sperm morphophysiology in different sections of the rooster reproductive tract

Int. j. morphol; 37 (3), 2019
It is important to know the morphological changes that occur in the spermatozoa of rooster during their passage through the reproductive tract, which help to understand what they acquire their fertilization capacity. The morphophysiological changes related to the capacitation and acrosomal reaction proce...

Improvement of fertility parameters with tribulus terrestris and anacyclus pyrethrum treatment in male rats

Int. braz. j. urol; 45 (5), 2019
ABSTRACT Objective Anacyclus Pyrethrum (AP) and Tribulus Terrestris (TT) have been reported as male infertility treatment in several studies; however, in Iranian traditional medicine these two plants are prescribed simultaneously. In this study, we aimed to determine the effects of AP and TT extracts b...

Antioxidant action of alpha lipoic acid on the testis and epididymis of diabetic rats: morphological, sperm and immunohistochemical evaluation

Int. braz. j. urol; 45 (4), 2019
ABSTRACT Introduction Chronic hyperglycemia is caused by diabetes mellitus-committed genital morphophysiology, and oxidative stress is one of the main factors involved in this process. Alpha lipoic acid (ALA) can prevent metabolic and morphological changes in diabetic individuals. Objectives In prese...

Addition of chlorogenic acid and caffeine during the processing of cooled boar semen

A study was conducted to evaluate the effect of chlorogenic acid (ChA) added pre-cooling and its combination with caffeine added during warming on cooled-stored boar semen parameters. Ten ejaculates were diluted in commercial extender with or without 4.5mg/ml ChA and stored at 15°C. After 0, 24 and 72 h...

Efecto in vitro de los suplementos vitamínicos que se venden como afrodisíacos sobre la movilidad espermática

Objetivo El objetivo de este trabajo es determinar el efecto in vitro de los suplementos vitamínicos que se venden como afrodisíacos sobre la movilidad espermática. Materiales y métodos Comprimidos de venta libre obtenidos en diferentes centros de venta de productos naturales y sexuales de la ciu...