Results 41 to 50 of about 6,194 (199)

Varicoceles in Men With Non-obstructive Azoospermia: The Dilemma to Operate or Not

Frontiers in Reproductive Health, 2022
The knowledge on male reproduction is constantly expanding, especially in treating infertility due to non-obstructive azoospermia (NOA). Varicocele is occasionally diagnosed in a subpopulation of males with NOA. Varicocele repair in NOA-men may contribute to the reappearance of spermatozoa in semen. However, spontaneous pregnancies are observed in only
Aris Kaltsas, Eleftheria Markou, Athanasios Zachariou, Fotios Dimitriadis, Charalampos Mamoulakis, Sotirios Andreadakis, Ioannis Giannakis, Panagiota Tsounapi, Atsushi Takenaka, Nikolaos Sofikitis   +9 more
openaire   +3 more sources

Bi-allelic recessive loss-of-function variants in FANCM cause non-obstructive azoospermia [PDF]

, 2018
Infertility affects around 7% of men worldwide. Idiopathic non-obstructive azoospermia (NOA) is defined as the absence of spermatozoa in the ejaculate due to failed spermatogenesis.
Punab, M., Minajeva, A., Laan, M., Grigorova, M, Carvalho, F., Conrad, D.F., Nagirnaja, L, Punab, AM, Lopes, AM, Punab, A.M., Grigorova, M., Laasik, E, Punab, M, Aston, K.I., Conrad, DF, Minajeva, A, Kasak, L, Smith, L.B., Smith, LB, Kasak, L., Aston, KI, Laasik, E., Carvalho, F, Lopes, A.M., Nagirnaja, L., Laan, M   +25 more
core   +1 more source

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

مجلة 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, Saaduldeen Ghali Al-Esawi, Raghad Hussein Ahmed   +2 more
doaj   +1 more source

Management of the Infertile Male with Azoospermia

Düzce Tıp Fakültesi Dergisi, 2022
Azoospermia means the complete absence of spermatozoa upon examination of the semen. Azoospermia may result from a lack of spermatozoa production in the testicles, or from an inability of produced spermatozoa to reach the emitted semen.
Erdem Akbay, Mesut Tek
doaj   +1 more source

Chromosomal abnormalities in patients with oligozoospermia and non-obstructive azoospermia [PDF]

Journal of Assisted Reproduction and Genetics, 2013
To assess the frequency and types of chromosomal abnormalities in 204 Ukrainian patients with non-obstructive azoospermia and oligozoospermia and 87 men with normozoospermia.Cytogenetic studies were performed on peripheral blood lymphocyte samples of 164 men with oligozoospermia, 40 men with non-obstructive azoospermia and 87 men with normozoospermia ...
Larysa Y, Pylyp, Lyudmyla O, Spinenko, Natalia V, Verhoglyad, Valery D, Zukin   +3 more
openaire   +2 more sources

TKTL1: a new candidate gene in non-obstructive azoospermia. [PDF]

Reprod Biomed Online
What role does TKTL1 gene serve in human spermatogenesis and does its mutation trigger non-obstructive azoospermia (NOA)?The genetic background of NOA remains poorly explored. Recent studies using next generation sequencing techniques, however, have uncovered some NOA causative genes, including the TKTL1 gene.
Malcher A, Smolibowski M, Stokowy T, Bauer H, Patyk A, Jedrzejczak P, Kostyk J, Graczyk Z, Ibrahim R, Bednarek-Rajewska K, Berger A, Yatsenko AN, Kurpisz M.   +12 more
europepmc   +4 more sources

Varicocelectomy in Patients with Non-obstructive Azoospermia

Journal of Urological Surgery, 2019
Objective:We evaluated the outcomes of varicocelectomy in men with non-obstructive azoospermia (NOA) and a palpable varicocele.Materials and Methods:We retrospectively evaluated 25 male patients with NOA having a palpable varicocele, between May 2006 and December 2018.
Cevahir Özer, Mehmet Reşit Gören, Ümit Gül, Tahsin Turunç, Sezgin Güvel   +4 more
openaire   +2 more sources

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

Journal 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.
Esther, Maor-Sagie, Yuval, Cinnamon, Barak, Yaacov, Avraham, Shaag, Hannoch, Goldsmidt, Shamir, Zenvirt, Neri, Laufer, Carmelit, Richler, Ayala, Frumkin   +8 more
openaire   +2 more sources

Electropherogram showing single-nucleotide mutation of WT1 in patients with non-obstructive azoospermia. [PDF]

, 2013
Electropherogram showing single-nucleotide mutation of WT1 in patients with non-obstructive azoospermia.
Jun Zhang (48506), Ri Na Sha (440752), Guang Qing Sun (440754), Fei Gao (29262), Yu Ren (428662), Zhi Ming Cai (440758), Tao Jiang (28401), Yao Ting Gui (440760), Ya Qing Wang (440749), Jian Wang (5901), Vicki Huff (440759), Jun Xie (53987), Jun Wang (5906), Xiao Liu (65413), Zhi Mao Jiang (440757), Min Chen (147733), Ze Song Li (440748), Hong Gang Li (440755), Xiao Na Wang (440747), Yan Bo Wang (440751), Cheng Liang Xiong (440756), Jian Xiu Hao (440750), Yi Huang (112882), Jing Chu Hu (440753)   +23 more
core   +1 more source

Sperm retrieval techniques for assisted reproduction

International Brazilian Journal of Urology, 2011
Different surgical methods such as PESA, MESA, TESA, TESE and micro-TESE have been developed to retrieve spermatozoa from either the epididymis or the testis according to the type of azoospermia, i.e., obstructive or non-obstructive.
Sandro C. Esteves, Ricardo Miyaoka, Ashok Agarwal   +2 more
doaj   +1 more source