Results: 150

El glifosato afecta negativamente a los espermatozoides humanos: evidencia in vitro

Determinar el efecto del glifosato sobre la calidad seminal en humanos a través de una revisión sistemática. Se realizó una búsqueda de la literatura en dos bases de datos (Pubmed y Scopus) de los terminos glyphosate/gliphosate/Roundup/yerbimat y sperm/“male reproductive tract”. Los criterios de...

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...

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...

Reference values (RV), MNS and MTS for morphological characteristics of normal and abnormal human spermatozoon describing Teratozoospermic Index (TZI) & Sperm Deformity Index (SDI) in Sudanese infertile couples using CASA System

Int. j. morphol; 37 (3), 2019
A scientific determination of fertilization ability of the sperm can be made by motility, viability and morphological examinations that are called as potential fertility criteria. Some previous studies documented only the total morphological defect rates without including the morphologic subjects. As it ...

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...

Quality of fresh and cryopreserved semen and their influence on the rates of fertilization, hatching and quality of the larvae of Piaractus mesopotamicus

Braz. j. biol; 79 (3), 2019
Abstract In this work, the seminal parameters of P. mesopotamicus were evaluated fresh and after cryopreservation, focusing on the sperm variables that affect the rates of fertilization, hatching and post-hatching parameters such as larval survival and morphology. The semen and oocytes from the animals ...

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...

Morphology of the spermatheca of Triatoma lecticularia (Hemiptera: Reduviidae) (Stal, 1859)

Braz. j. biol; 79 (1), 2019
Abstract Triatoma lecticularia (Hemiptera: Reduviidae) (Stal, 1859) is a potential vector of Chagas's disease and the comprehension of its reproductive biology is an important tool to control this insect. In the reproductive tract of female insects, the spermatheca plays a crucial role storing male sperm...