Results 31 to 40 of about 22,224 (299)
Objective: Non-obstructive azoospermia, defined as absence of spermatozoa in the ejaculate caused by impaired spermatogenesis, is the most severe cause of male infertility.
Omer yumusak +5 more
doaj +1 more source
Androgen receptor polymorphisms and testicular cancer risk [PDF]
Testicular cancer (TC) is currently the most common malignant solid tumour in Caucasian males aged 15-39 years. Epidemiological evidence suggests that its onset may be due to an imbalance in the action of steroidal sex hormones and their receptors.
CARLINI, TANIA +9 more
core +1 more source
Approximately 50% of men with NOA have minimal sperm production within their dysfunctional testes. Studies shown poor correlations between testicular size and sperm retrieval rates.
Ricky Adriansjah +2 more
doaj +1 more source
Developmental changes in the histological structure of the testes, and testosterone profiles in male guinea fowls (Numida meleagris) [PDF]
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until ...
Abdul-Rahman, Iddriss I. +2 more
core +1 more source
Histopathological Patterns of Testicular Biopsy in Male Infertile Patients: A Cross-sectional Study [PDF]
Introduction: The management of male infertility has undergone rapid changes with advancements in assisted reproductive techniques such as testicular sperm aspiration and microdissection, testicular sperm extraction (MicroTESE).
Leela Rani Veeramachaneni +4 more
doaj +1 more source
Annual variation in the levels of transcripts of sex-specific genes in the mantle of the common mussel, Mytilus edulis [PDF]
Mytilus species are used as sentinels for the assessment of environmental health but sex or stage in the reproduction cycle is rarely considered even though both parameters are likely to influence responses to pollution.
A Gorbman +58 more
core +7 more sources
Introduction Rare foci of sperm production may be found in up to 60% of men with nonobstructive azoospermia (NOA). Sperm production, if present, is minimal for sperm appearance in the ejaculate.
Sandro C. Esteves
doaj +1 more source
Microdissection testicular sperm extraction causes spermatogenic alterations in the contralateral testis [PDF]
Testicular sperm extraction (TESE) associated with intracytoplasmic sperm injection has allowed many men presenting non-obstructive azoospermia to achieve fatherhood.
Azeredo-Oliveira, Maria Tercilia Vilela de +4 more
core +1 more source
Testicular sperm extraction with intracytoplasmic sperm injection for male infertility [PDF]
Background and Aims: Testicular sperm extraction (TESE) and intracytoplasmic sperm injection (ICSI) is an effective procedure for the treatment of male infertility, obstructive and non‐obstructive azoospermia. We have reviewed our experience to investigate the correlation of TESE‐ICSI with morphological, biophysical and endocrine profiles in 27 men ...
Takashi, Imamoto +7 more
openaire +2 more sources
Endocrine predictors of testicular biopsy efficacy in patients with azoospermia
OBJECTIVE. The study identified predictors of endocrine detection of sperm in case of open testicular biopsy in patients with non-obstructive azoospermia. MATERIAL AND METHODS. The research was based on the results of examination and testicular biopsy of
V. A. Toropov +5 more
doaj +1 more source

