Results 71 to 80 of about 5,887,583 (287)

Predictors of sperm retrieval success in first-time and repeated Micro-TESE for nonobstructive azoospermia

open access: yesFuture Science OA
Introduction Microdissection testicular sperm extraction (micro-TESE) is the preferred sperm retrieval method, although success rates vary based on factors such as age and hormone levels.
Sulieman Alriyalat   +10 more
doaj   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende   +9 more
wiley   +1 more source

The predictive value of parameters of clinical presentations for sperm yield in patients with nonobstructive azoospermia receiving microdissection testicular sperm extraction

open access: yesUrological Science, 2017
Objective: We analyzed a cohort of nonobstructive azoospermia (NOA) patients receiving microdissection testicular sperm extraction (mTESE) to examine the relationship of sperm yield and the parameters of clinical presentations.
Ming-Hsuan Ku   +4 more
doaj   +1 more source

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

open access: yesAnimal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad   +7 more
wiley   +1 more source

Minimally Invasive Intramedullary Fixation of Middle third clavicular Fractures Through the Medial Entry by Titanium Elastic Nailing System (TENS) [PDF]

open access: yesAl-Azhar International Medical Journal
Background: Non-obstructive azoospermia (NOA) is a major clinical challenge, with spontaneous sperm recovery being rare and fertility treatment options remaining limited.
Amr Zaki   +2 more
doaj   +1 more source

The association between male infertility and sperm disomy: Evidence for variation in disomy levels among individuals and a correlation between particular semen parameters and disomy of specific chromosome pairs [PDF]

open access: yes, 2004
BACKGROUND: The association between infertility and sperm disomy is well documented. Results vary but most report that men with severely compromised semen parameters have a significantly elevated proportion of disomic sperm.
Xiao P Zhai   +27 more
core   +1 more source

Embodied attachments: IVF, the maternal body, and the making of embryo kinship

open access: yesFeminist Anthropology, EarlyView.
Abstract Within the sphere of IVF (in vitro fertilization), there is increasing concern about the stockpiles of frozen embryos held in clinics across the country. This normative discourse tends to take the patient‐embryo relationship for granted, with salient political consequences for current embryo ‘personhood’ debates.
Manon Lefevre
wiley   +1 more source

Analysis of factors affecting repeat microdissection testicular sperm extraction outcomes in infertile men

open access: yesUrology Research and Practice, 2019
Objective: There is no clear consensus on which patients and how many of microscopic testicular sperm extraction (mTESE) procedures will be successful. In this study, we aimed to evaluate the sperm retrieval rates and factors affecting these rates in men
Fuat Kızılay   +4 more
doaj   +1 more source

Testicular Damage following Testicular Sperm Retrieval: A Ram Model Study [PDF]

open access: yes, 2017
The aim of this study was to evaluate the possible development of histological abnormalities such as fibrosis and microcalcifications after sperm retrieval in a ram model.
Jens Fedder   +7 more
core   +1 more source

Human biomarker navigator

open access: yesiMeta, EarlyView.
The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li   +29 more
wiley   +1 more source

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