Results 61 to 70 of about 54,369 (287)

Embryo development and live birth resulted from artificial oocyte activation after microdissection testicular sperm extraction with ICSI in patients with non-obstructive azoospermia

open access: yesFrontiers in Endocrinology, 2023
Introduction The application of microdissection testicular sperm extraction (micro-TESE) to retrieve the sperm of patients with non-obstructive azoospermia (NOA) has greatly increased. Patients with NOA often have poor quality sperm. Unfortunately, there
Xi Zhang   +6 more
semanticscholar   +1 more source

Micro RNA in Semen/Urine from Non-Obstructive Azoospermia Patients as Biomarkers to Predict the Presence of Testicular Spermatozoa and Spermatogonia

open access: yesLife, 2023
About half of testicular sperm extraction (TESE) procedures in men with non-obstructive azoospermia (NOA), including men with Klinefelter syndrome (KS), are unsuccessful. To avoid unnecessary invasive surgery, biomarkers for spermatozoa were studied.
Margo Willems   +9 more
semanticscholar   +1 more source

Difficulties in differential diagnosis between obstructive and non-obstructive azoospermia

open access: yesВестник урологии, 2022
Introduction. The difference between obstructive and non-obstructive azoospermia (OA and NOA) is important for the choice of treatment tactics and adequate counseling of a married couple.Objective.
S. I. Gamidov   +5 more
doaj   +1 more source

A homozygous KASH5 frameshift mutation causes diminished ovarian reserve, recurrent miscarriage, and non-obstructive azoospermia in humans

open access: yesFrontiers in Endocrinology, 2023
The meiosis-specific LINC complex, composed of the KASH5 and SUN1 proteins, tethers the moving chromosomes to the nuclear envelope to facilitate homolog pairing and is essential for gametogenesis.
Xiaoning Hou   +13 more
semanticscholar   +1 more source

Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE [PDF]

open access: yesEinstein (São Paulo), 2009
Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as non-obstructive azoospermia, or to the obstruction of the efferent ...
Marcelo Vieira, Sidney Glina
doaj  

Pregnancy Rate In Non-Azoospermia With Normal Or Suboptimal Semen Parameter Versus Azoospermic Male Treated By IVF-ICSI Cycle

open access: yesمجلة الكوفة الطبية, 2023
Background: Intracytoplasmic sperm injection (ICSI) opens the gate for many cases of male factor infertility to be the biological fathers of their sibling since 1992.
Ali A. Abo-Alshaar   +2 more
doaj   +1 more source

Identification and validation of diagnostic signature genes in non-obstructive azoospermia by machine learning

open access: yesAging, 2023
Non-obstructive azoospermia (NOA) is a common cause of male infertility, and no specific diagnostic indicators exist. In this study, we used human testis datasets GSE45885, GSE45887, and GSE108886 from GEO database as training datasets, and screened 6 ...
L. Ran   +5 more
semanticscholar   +1 more source

Deleterious mutation in SYCE1 is associated with non-obstructive azoospermia [PDF]

open access: yesJournal of Assisted Reproduction and Genetics, 2015
To determine the molecular basis of familial, autosomal-recessive, non-obstructive azoospermia in a consanguineous Iranian Jewish family.We investigated the genetic cause of non-obstructive azoospermia in two affected siblings from a consanguineous family.
Yuval Cinnamon   +8 more
openaire   +3 more sources

Analysis of Y Chromosome Microdeletions and Mutation in Exon7 of the STAG3 Gene in Iranian Infertile Men with Idiopathic Non-Obstructive Azoospermia [PDF]

open access: yesMajallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk, 2016
Background: Azoospermia is defined as the absence of sperm in the semen and is divided in two types; obstructive and non-obstructive azoospermia. Non-obstructive azoospermia include approximately 60% of azoospermia patients.
Sara Pouriamanesh   +5 more
doaj  

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