Sperm Function
Mostrando 1-12 de 182 artigos, teses e dissertações.
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1. Are specialized sperm function tests clinically useful in planning assisted reproductive technology?
CASE STUDY 40-year-old male patient and 32-year-old female partner, with a history of primary infertility of two years duration. The workup revealed idiopathic mild oligoasthenotheratozoospermia, and no apparent female infertility factors. The couple has failed three intrauterine insemination (IUI) cycles, planning more IUI cycles but also considering in vit
Int. braz j urol.. Publicado em: 2020-02
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2. Effect of adenosine concentration on quality of cooled ram semen
ABSTRACT This study analyzed the adenosine concentration on quality of ram semen in different refrigerated storage times at 5 °C. The design was in blocks with repeated-measures factorial design. Five levels of adenosine and four refrigeration times were considered as fixed effects and the animal as random effect (block). Ram semen was diluted with Andromed
R. Bras. Zootec.. Publicado em: 25/11/2019
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3. Impact of testicular sperm extraction and testicular sperm aspiration on gonadal function in an experimental rat model
ABSTRACT Purpose To assess the impact of sperm retrieval on the gonadal function of rats with impaired spermatogenesis by comparing testicular sperm extraction (TESE) to aspiration (TESA). The efficacy of these procedures to sperm obtainment was also compared. Materials and Methods A pilot study showed impaired spermatogenesis, but normal testosterone (T)
Int. braz j urol.. Publicado em: 2018-02
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4. Effect of metformin on semen quality
ABSTRACT Various studies have linked metformin, a universally antidiabetic drug, with semen quality; however, such a direct link has not been established. This review systematically addresses and summarizes the effect of metformin on semen quality, particularly sperm function. We searched the MEDLINE electronic database for English articles and abstracts con
Braz. J. Pharm. Sci.. Publicado em: 2016-12
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5. Decline of seminal parameters in middle-aged males is associated with lower urinary tract symptoms, prostate enlargement and bladder outlet obstruction
Purpose We aimed to compare the associations between semen quality, associated reproductive indicators and the main prostate-related parameters in middle-aged men. Materials and Methods: This is a prospective study on 422 middle-aged men who underwent the screening for prostate health. Their reproductive function, semen quality and prostate-related patholog
Int. braz j urol.. Publicado em: 2013-09
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6. Semen and reproductive parameters during some abstinence periods after cigarette smoke exposure in male rats
Cigarette smoking is very widespread globally and can also be implicated in male and female infertility. This study aimed to evaluate the testicular function throughout a complete spermatic cycle during abstinence from cigarette smoke exposure in order to identify a possible residual damage and whether the parameters could recover spontaneously. Male Wistar
Braz. arch. biol. technol.. Publicado em: 2013-02
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7. Hypogonadotropic Hypogonadism Revisited
Impaired testicular function, i.e., hypogonadism, can result from a primary testicular disorder (hypergonadotropic) or occur secondary to hypothalamic-pituitary dysfunction (hypogonadotropic). Hypogonadotropic hypogonadism can be congenital or acquired. Congenital hypogonadotropic hypogonadism is divided into anosmic hypogonadotropic hypogonadism (Kallmann s
Clinics. Publicado em: 2013
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8. Medical management of non-obstructive azoospermia
Non-obstructive azoospermia is diagnosed in approximately 10% of infertile men. It represents a failure of spermatogenesis within the testis and, from a management standpoint, is due to either a lack of appropriate stimulation by gonadotropins or an intrinsic testicular impairment. The former category of patients has hypogonadotropic hypogonadism and benefit
Clinics. Publicado em: 2013
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9. The epidemiology and etiology of azoospermia
The misconception that infertility is typically associated with the female is commonly faced in the management of infertile men. It is uncommon for a patient to present for an infertility evaluation with an abnormal semen analysis report before an extensive female partner workup has been performed. Additionally, a man is usually considered fertile based only
Clinics. Publicado em: 2013
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10. Avaliação da função gonadal em homens com espondilite anquilosante / Gonadal function in male patients with ankylosing spondylitis
Objetivo: Avaliar a função testicular em pacientes do sexo masculino com espondilite anquilosante (EA). Métodos: Vinte pacientes com EA e vinte e quatro adultos masculinos saudáveis foram avaliados quanto às características demográficas, exame urológico, ultrassonografia testicular, avaliações dos espermatozóides, anticorpo anti-espermatozóide e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2012
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11. Morfofisiologia do sistema genital masculino de ratos púberes e adultos após privação androgênica durante a pré-puberdade / Morphophysiology of male reproductive system of adult and pubertal rats after androgen deprivation during prepuberty
Endocrine disrupters are chemicals that can act as agonists or antagonists of endogenous hormones, interfering with the homeostasis of the organism. Since the endocrine system plays a critical role in the development and function of the male reproductive system, this is an especially vulnerable target of potential endocrine perturbations. The literature pres
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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12. Evaluation of gonadal function in male patients with antiphospholipid syndrome / Avaliação da função gonadal em pacientes do sexo masculino com síndrome antifosfolípide
INTRODUÇÃO. A síndrome antifiosfolípide (SAF) é uma condição trombofílica autoimune associada a títulos elevados e persistentes de anticorpos antifosfolípides. Caracteriza-se por tromboses em diversos órgãos, incluindo os testículos. OBJETIVO. Realizar uma avaliação global da função gonadal em pacientes masculinos com SAF primária (SAFP) e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012