Results 11 to 20 of about 21,382 (249)

Predictors of testicular sperm retrieval in patients with non-obstructive azoospermia: a review

open access: yesJournal of International Medical Research, 2021
Azoospermia is divided into two categories of obstructive azoospermia and non-obstructive azoospermia. Before 1995, couples with a male partner diagnosed with non-obstructive azoospermia had to choose sperm donation or adoption to have a child. Currently,
Lin Qi, Ya P Liu, Nan N Zhang, Ying C Su
doaj   +1 more source

Physiological consequences of testicular sperm extraction [PDF]

open access: yesHuman Reproduction, 1997
Testicular sperm extraction (TESE) may provide spermatozoa for attempts at fertility with assisted reproduction; however, the physiological effects of TESE on testicular function are not well understood. In order to evaluate the effects of TESE on the testis, 64 patients were evaluated after TESE for non-obstructive azoospermia with physical ...
P N, Schlegel, L M, Su
openaire   +3 more sources

Annual variation in the levels of transcripts of sex-specific genes in the mantle of the common mussel, Mytilus edulis [PDF]

open access: yes, 2012
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   +22 more sources

Testicular Sperm Extraction Techniques in Subfertile Males

open access: yesNepalese Medical Journal, 2020
Introduction: Assisted conception is an option for subfertile couples. Surgical sperm retrieval by testicular sperm aspiration and testicular sperm extraction are widely used safe techniques to yield sperm for intracytoplasmic sperm injection. Experience
Robin Bahadur Basnet   +3 more
doaj   +1 more source

Endocrine Tests and/or Testicular Volume are Not Predictive of Successful Sperm Retrieval by Conventional Multiple Testicular Sperm Extraction in Nonobstructive Azoospermia

open access: yesFertility & Reproduction, 2020
Objectives: This study aimed to determine the role of presurgical markers in the prediction of sperm retrieval by conventional Multiple Testicular Sperm Extraction in infertile Vietnamese men with nonobstructive azoospermia (NOA).
Minh Tam Le   +4 more
doaj   +1 more source

Testicular expression of TDRD1, TDRD5, TDRD9 and TDRD12 in azoospermia. [PDF]

open access: yes, 2020
BACKGROUND: Tudor domain-containing proteins (TDRDs) play a critical role in piRNA biogenesis and germ cell development. piRNAs, small regulatory RNAs, act by silencing of transposons during germline development and it has recently been shown in animal ...
Aghaei, M   +9 more
core   +1 more source

Microdissection testicular sperm extraction: an update [PDF]

open access: yesAsian Journal of Andrology, 2012
Patients with non-obstructive azoospermia (NOA) were once considered to be infertile with few treatment options due to the absence of sperm in the ejaculate. In the last two decades, the advent of intracytoplasmic sperm injection (ICSI), and the application of various testicular sperm retrieval techniques, including fine needle aspiration (FNA ...
Ali A, Dabaja, Peter N, Schlegel
openaire   +2 more sources

Is testicular microdissection the only way to retrieve sperm for non-obstructive azoospermic men?

open access: yesFrontiers in Reproductive Health, 2022
Men presenting with non-obstructive azoospermia are the most challenging clinical scenario for an infertile couple. Intracytoplasmic Sperm Injection (ICSI) with testicular sperm retrieval gave a chance for biological fatherhood once sperm can be found ...
Marcelo Vieira   +2 more
doaj   +1 more source

MICROSCOPIC TESTICULAR SPERM EXTRACTION

open access: yesThe Professional Medical Journal, 2018
Azoospermia, the complete absence of sperms in the ejaculate is found in 1% ofnormal males and 10-15% of infertile couples. Surgical sperm retrieval (SSR) and use of spermsfor ICSI/IVF offers an opportunity of parenting to the male factor infertile couples.
Maher Saleh Moazin   +4 more
openaire   +3 more sources

A preliminary study of sperm identification in microdissection testicular sperm extraction samples with deep convolutional neural networks

open access: yesAsian Journal of Andrology, 2021
Sperm identification and selection is an essential task when processing human testicular samples for in vitro fertilization. Locating and identifying sperm cell(s) in human testicular biopsy samples is labor intensive and time consuming.
Daniel J Wu   +4 more
doaj   +1 more source

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