Results: 150

Embryo development is impaired by sperm mitochondrial-derived ROS

Biol. Res; 57 (), 2024
BACKGROUND: Basal energetic metabolism in sperm, particularly oxidative phosphorylation, is known to condition not only their oocyte fertilising ability, but also the subsequent embryo development. While the molecular pathways underlying these events still need to be elucidated, reactive oxygen species (...

Representações sociais sobre maternidade na reprodução humana assistida: discursos de mulheres inférteis

Psicol. ciênc. prof; 44 (), 2024
Este trabalho tem o objetivo de analisar as concepções de maternidade para mulheres inférteis de diferentes níveis socioeconômicos que estão em tratamento de reprodução assistida. Trata-se de um estudo qualitativo, descritivo, que utilizou como instrumento uma entrevista semiestruturada e contemp...
Psicología, Derechos Sexuales y Reproductivos, Reproducción, Infertilidad Femenina, Responsabilidad Parental, Familia, Representación Social, d0081490, d0012900, Consanguinidad, d0028350, d0034690, d0071720, d0379210, d0046440, d0572270, d0053060, d0055820, d0090420, d0149300, d0096790, d0149440, d0000854020, d0123800, d0138120, d0149370, d0277240, Transporte del Óvulo, Transporte Espermático, Laboratorios, Útero, Matrimonio, Sexo, Coito, Enfermedades de Transmisión Sexual, , Enfermedad Inflamatoria Pélvica, Infección Pélvica, Enfermedades Urogenitales, Enfermedades Urogenitales Femeninas y Complicaciones del Embarazo, Conducta Sedentaria, Estilo de Vida, Estilo de Vida Saludable, Obesidad, Tabaquismo, Consumo Excesivo de Bebidas Alcohólicas, Alcoholismo, Factores de Riesgo, Endometriosis, Terapia de Parejas, Felicidad, Afecto, Autoimagen, Miedo, Logro, Distrés Psicológico, Esperanza, Tiempo, Adopción, Crianza del Niño, Relaciones Padres-Hijo, , Embarazo Múltiple, Mantenimiento del Embarazo, Trabajo de Parto, Embarazo de Alto Riesgo, Edad Gestacional, Inseminación Artificial Homóloga, Preparaciones Farmacéuticas, Pacientes, , Sistema Urogenital, Óvulo, Espermatozoides, Resultado del Embarazo, Intercambio Materno-Fetal, Embarazo, Donación de Oocito, Fertilización In Vitro, Inducción de la Ovulación, Transferencia de Embrión, Diagnóstico, Detección de la Ovulación, Predicción de la Ovulación, Pruebas de Obstrucción de las Trompas Uterinas, Técnicas Reproductivas, , Concepción de Donantes, Desconcierto, Vergüenza, Culpa, Trauma Psicológico, Amenaza de Aborto, Calidad de Vida, Estrategias de Salud Nacionales, , Composición Familiar, Divorcio, Estado Conyugal, Depresión, Ansiedad, Apoyo Familiar, Conflicto Familiar, Grupo de Atención al Paciente, Normas Sociales, Imaginación, Sueños, Fantasía, Relaciones Familiares, Patrón de Herencia, Herencia, Masculinidad, Regulación Emocional, Agotamiento Emocional, Frustación, Infertilidad Masculina, Empoderamiento, Tristeza, Soledad, Descuento por Demora, Encuestas de Prevalencia Anticonceptiva, Efectividad Anticonceptiva, Anticoncepción Reversible de Larga Duración, Anticoncepción, Características de la Población, Mercado de Trabajo, Prejuicio, Abstinencia Sexual, Pertenencia, Necesidades Específicas del Género, Expresión de Género, Construcción Social del Género, Identificación Social, Medicina, Tabú, Sexualidad

Light Microscopic, Ultrastructure Analysis and Functional Morphology of Cornu aspersum Spermatozoa Contained in the Frozen Hermaphroditic Duct

Int. j. morphol; 41 (4), 2023
SUMMARY: In this study we describe the functional morphology of Cornu aspersum (Helix aspersa), spermatozoa using light, scanning (SEM) and transmission electron (TEM) microscopies. The studies were performed with sperm located in the frozen hermaphroditic duct. Our results showed that the head presents ...

Postnatal Exposure to Exogenous progesterone Exacerbates the Prenatally-Induced Abnormal Sperms Production and Function in Rats

Int. j. morphol; 41 (4), 2023
SUMMARY: This study aimed at clarifying the impact of long-term prenatal and postnatal exposure to exogenous progesterone on sperm production and function, relative sex organs weights, and the levels of the relevant hormones in rats. Sixty male Wistar rats were included and classified into three groups (...

Evaluación del recolector de orina en la toma de muestra de líquido seminal y tinción diferencial de fluorescencia en espermatozoides

Objetivo: Verificar que los recolectores de orina no son tóxicos para los espermatozoides. Métodos: Se evaluó la toxicidad de recipientes de material de vidrio (control) y plástico (recolector de orina) con muestras de semen de buena concentración y movilidad de espermatozoides, mediante el estudio ...

Histopathological examination of the protective effect of intense exercise in apoptotic germ cell damage due to diabetes

Acta cir. bras; 38 (), 2023
Purpose: The aim of this study was to determine the protective and antioxidative effects of intensive exercise on streptozotocin (STZ)-induced testicular damage, apoptotic spermatognial cells death, and oxidative stress. Methods: 36 male Sprague Dawley rats were divided into three groups: control, diabet...

Use of antioxidants and time of cold storage: effects over viability parameters and enzymatic levels in semen of rainbow trout (Oncorhynchus mykiss, Walbaum, 1792)

Braz. j. biol; 83 (), 2023
Abstract The cold storage of milt implies potentials alterations in its quality because the storage generates as main process, free radicals that produce spermatozoa membrane lipids damage with the consequent motility and fertilising capacity disruptions. To decrease the damage generated by free radicals...

Chronic consumption of contaminated feed with 2 4 dichlorophenoxyacetic acid (2 4 D) herbicide in rodents: effects on male reproductive health

Introduction: The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) is one of the most widely used pesticides in the world. There is evidence that this herbicide can induce deleterious effects in non-target organisms, including impairment of reproduction function. Objective: The aim of this study was to e...

Cisplatin-induced azoospermia and testicular damage ameliorated by adipose-derived mesenchymal stem cells

Biol. Res; 56 (), 2023
BACKGROUND: The testes are highly susceptible to the adverse effects of chemotherapy and radiation at all stages of life. Exposure to these threats mainly occurs during cancer treatment and as an occupational hazard in radiation centers. The present study investigated the regenerative ability of adipose-...

Cyperus esculentus L. protects testis and sperm morphology of hyperglycaemic rats

Cyperus esculentus L. (tiger nut) is a tuberous plant that promotes and protects reproductive functions, which are usually hampered in diabetics. The present study investigated the effect of Cyperus esculentus tuber extract (CETE) on testicular histology and sperm viability of all...