Sperm
Mostrando 1-12 de 1420 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. Epididymal abnormalities associated with sperm obstruction
International braz j urol. Publicado em: 2022
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3. The combined effect of lifestyle intervention and antioxidant therapy on sperm DNA fragmentation and seminal oxidative stress in IVF patients: a pilot study
ABSTRACT Purpose: Sperm DNA fragmentation (SDF) and seminal oxidative stress are emerging measurable factors in male factor infertility, which interventions could potentially reduce. We evaluated (i) the impact of lifestyle changes combined with oral antioxidant intake on sperm DNA fragmentation index (DFI) and static oxidation-reduction potential (sORP), a
International braz j urol. Publicado em: 2022
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4. Microdissection TESE versus conventional TESE for men with nonobstructive azoospermia undergoing sperm retrieval
International braz j urol. Publicado em: 2022
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5. In vitro sperm characteristics and in vivo fertility of sex-sorted and conventional semen in suckled Nelore cows at a traditional schedule for timed-AI with estrus detection
RESUMO O estudo teve como objetivo avaliar características espermáticas in vitro e a taxa de concepção (TC) de sêmen convencional e sexado em um programa de IATF tradicional de vacas Nelore pós-parto. Todas a vacas (n=348) foram submetidas ao mesmo protocolo de IATF à base de estradiol e de progesterona. Após 48 horas da retirada do implante, foi det
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2022
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6. Evaluation of biochemical and electrolytic components of semen from ram supplemented with different concentrations of selenium and its correlation with sperm quality
RESUMO O objetivo do estudo foi avaliar se a suplementação com diferentes níveis de selênio (Se) pode alterar os componentes bioquímicos e eletrolíticos do sêmen, ocasionando, por conseguinte, uma melhoria na qualidade seminal em carneiros. Foram utilizados 30 animais, mantidos em sistema intensivo de baias, alimentados com feno e ração comercial, s
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2022
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7. Semen quality from patients affected by seminomatous and non-seminomatous testicular tumor
ABSTRACT Testicular cancer is considered a rare disease affecting approximately 1% to 2% of the male population. This neoplasm has a cure rate of over 95%; as a result, a major concern is the future of fertility of carriers from this disease. There are several histological subtypes of testicular tumors; however, the Testicular Germ Cell Tumors (TGCTs), compr
Int. braz j urol.. Publicado em: 2021-06
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8. Vasectomy re-reversal: effectiveness and parameters associated with its success
ABSTRACT Introduction: When the vasectomy reversal (VR) fails, and the patient desires natural conception with his sperm, vasectomy re-reversal (VRR) is the only alternative. Purpose: To determine the VRR effectiveness and whether specific parameters can be associated with its success. Materials and Methods: We retrospectively evaluated 18 consecutive vas
Int. braz j urol.. Publicado em: 2021-06
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9. Time has come to provide infertile men with an optimal fertility pathway
ABSTRACT Introduction: When the vasectomy reversal (VR) fails, and the patient desires natural conception with his sperm, vasectomy re-reversal (VRR) is the only alternative. Purpose: To determine the VRR effectiveness and whether specific parameters can be associated with its success. Materials and Methods: We retrospectively evaluated 18 consecutive vas
Int. braz j urol.. Publicado em: 2021-06
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10. Editorial comment: Is testosterone replacement an effective treatment of secondary premature ejaculation?
ABSTRACT Introduction: When the vasectomy reversal (VR) fails, and the patient desires natural conception with his sperm, vasectomy re-reversal (VRR) is the only alternative. Purpose: To determine the VRR effectiveness and whether specific parameters can be associated with its success. Materials and Methods: We retrospectively evaluated 18 consecutive vas
Int. braz j urol.. Publicado em: 2021-06
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11. Pre-operative COVID-19 screening: a model to provide non-discretionary care for urologic patients
ABSTRACT Introduction: When the vasectomy reversal (VR) fails, and the patient desires natural conception with his sperm, vasectomy re-reversal (VRR) is the only alternative. Purpose: To determine the VRR effectiveness and whether specific parameters can be associated with its success. Materials and Methods: We retrospectively evaluated 18 consecutive vas
Int. braz j urol.. Publicado em: 2021-06
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12. Efeitos do Hydrosalpinx no Falho de Implantação Endometrial: Avaliar a salpingectomia nas mulheres em curso de Fertilização in vitro
Abstract Hydrosalpinx is a disease characterized by the obstruction of the salpinx, with progressive accumulation in the shape of a fluid-filled sac at the distal part of the tuba uterina, and closed to the ovary. Women with hydrosalpinges have lower implantation and pregnancy rates due to a combination of mechanical and chemical factors thought to disrupt t
Rev. Bras. Ginecol. Obstet.. Publicado em: 2021-04