Spermatogenesis
Mostrando 1-12 de 459 artigos, teses e dissertações.
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1. Recombinant gonadotropin therapy to improve spermatogenesis in nonobstructive azoospermic patients – A proof of concept study
ABSTRACT Purpose: Nonobstructive azoospermia (NOA) associated with primary spermatogenic failure is a common cause of male infertility usually considered untreatable; however, some reports have suggested that hormonal stimulation to boost the intra-testicular testosterone level and spermatogenesis might increase the chance of achieving pregnancy using homol
International braz j urol. Publicado em: 2022
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2. Fertility Enhancing Potency of Omega-3 Fatty Acids in Male Rats
Abstract Cases of some grave side effects of some allopathic medicines used in treatment of infertility has caused a global need for alternatives with minimal or no side effect, hence the demand to evaluate the fertility enhancing potential of omega-3 fatty acids (O3FA) in male rats. This study evaluated the fertility enhancing potential of omega-3 fatty aci
Braz. arch. biol. technol.. Publicado em: 28/11/2019
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3. Evaluation of the proteomic profiles of ejaculated spermatozoa from Saanen bucks (Capra hircus)
Abstract The Saanen goat breed has been widely explored in breeding programmes; however, there are few reports about the breed’s genetic and molecular composition. Thus, this study aimed to characterize the proteomic profile of spermatozoa from Saanen breeding goats. Five breeding animals with proven fertility were selected, the spermatozoa were collected,
Anim. Reprod.. Publicado em: 25/11/2019
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4. Cytotaxonomy of Dipetalogaster maxima Uhler, 1894 (Hemiptera, Reduviidae, Triatominae)
Resumo A tribo Triatomini consiste em dez gêneros e é considerada uma das tribos mais importantes do ponto de vista epidemiológico. O gênero Dipetalogaster Usinger, 1939 é composto apenas pela espécie Dipetalogaster maxima Uhler, 1894. Este triatomíneo é exclusivo do México e é um vetor potencial da doença de Chagas. Além da importância epidemio
Braz. J. Biol.. Publicado em: 11/11/2019
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5. Aspectos da biologia reprodutiva de Boa constrictor constrictor: um estudo histológico dos testículos nos períodos reprodutivos de quiescência e máxima atividade
RESUMO As serpentes pertencem ao segundo maior grupo dentro dos répteis, podendo apresentar sazonalidade quanto à espermatogênese, com produção descontínua ou contínua. O presente trabalho tem como objetivo caracterizar aspectos da biologia reprodutiva de Boa constrictor constrictor com base nos achados histológicos dos testículos nos períodos de m
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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6. Antioxidant action of alpha lipoic acid on the testis and epididymis of diabetic rats: morphological, sperm and immunohistochemical evaluation
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 present study, we evaluated the effects of regular ALA consu
Int. braz j urol.. Publicado em: 02/09/2019
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7. Seasonal influence on testicular morphophysiological parameters of bat Carollia perspicillata in fragments of the Atlantic Forest, northeastern Brazil
RESUMO: Os morcegos pertencem a ordem Chiroptera, família Phyllostomidae, e apresentam ampla diversidade de estratégias reprodutivas. Entretanto, as informações relacionadas à biologia reprodutiva dos machos são escassas, principalmente no Nordeste do Brasil. Dessa forma, o trabalho avaliou a histomorfometria sazonal testicular de Carollia perspicillat
Pesq. Vet. Bras.. Publicado em: 18/07/2019
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8. Use of infrared thermography to evaluate the inflammatory reaction in cat testis after intratesticular injection of 0.9% NaCl or 20% CaCl2 with 1% lidocaine
RESUMO Devido a constantes dúvidas e questionamentos sobre a reação inflamatória ocasionada pela castração química, este estudo objetivou o uso da termografia infravermelha para detectar, avaliar e monitorar a reação inflamatória causada pela injeção intratesticular de cloreto de cálcio (CaCl 2 ) 20% associada à lidocaína 1%. Para isso, medid
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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9. Reproductive biology of a viviparous lizard (Mabuya dorsivittata) from the subtropical Wet Chaco of Argentina: geographical variations in response to local environmental pressures
Herein we studied the reproductive biology of a viviparous lizard (Mabuya dorsivittata) from the Wet Chaco region (northeastern Argentina) and compared the results with other populations from the Espinal (central Argentina) and the Atlantic Forest (southeastern Brazil), and with other Neotropical species of Mabuya to better understand the possible causes of
An. Acad. Bras. Ciênc.. Publicado em: 21/03/2019
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10. Microscopic alterations in Fasciola hepatica from sheep treated with albendazole
Resumo Na atualidade, o albendazol é uma das drogas mais usadas devido à sua acessibilidade econômica. O objetivo foi avaliar a histopatologia dos espécimes de Fasciola hepatica. Para isso, foi realizado o teste de eficácia em ovinos tratados com albendazol na dose recomendada para Fasciola hepatica, no qual os helmintos recuperados em necropsia foram
Rev. Bras. Parasitol. Vet.. Publicado em: 14/02/2019
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11. Solexa Profiling Identifies Differentially Expressed MiRNAs Between Sexually Immature and Mature Equine Testis
ABSTRACT MicroRNAs (miRNAs) are a class of short non-coding RNAs identified as potent regulators of gene expression. Previous studies have suggested that miRNAs are involved in mammalian spermatogenesis. Stallion fertility is an important trait for the horse breeding industry, but stallion fertility traits are largely ignored in the industry. In this study,
Braz. arch. biol. technol.. Publicado em: 08/10/2018
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12. Star anise extracts modulation of reproductive parameters, fertility potential and DNA fragmentation induced by growth promoter Equigan in rat testes
ABSTRACT Equigan is an anabolic steroid that has been developed for veterinary use and derived from endogenous sex hormone testosterone that plays a key role in the development of male reproductive tissue as well as in puberty and spermatogenesis. The current study is aimed to investigate the possible prophylactic effect of star anise extracts (SAE) on the t
Braz. J. Pharm. Sci.. Publicado em: 07/06/2018