Results 101 to 110 of about 10,513,345 (205)

Relevance of testicular histopathology on prediction of sperm retrieval rates in case of non-obstructive and obstructive azoospermia

, 2018
Introduction: The aim of our research was to establish the relevance of testicular histopathology on sperm retrieval after testicular sperm extraction in patients with non-obstructive azoospermia and in patients with obstructive azoospermia, who already ...
Della Camera, Pier A., Nesi, Gabriella, Simone Morselli, Cito, Gianmartin, Picone, Rita, Sara Dabizzi, Andrea Cocci, Serni, Sergio, Candida De Carlo, Luciana Criscuoli, Gabriella Nesi, Natali, Alessandro, Elisabetta Micelli, Marco Carini, Carini, Marco, Alessandro Natali, Coccia, Maria E., Rita Picone, Micelli, Elisabetta, Sergio Serni, Morselli, Simone, Maria E Coccia, Dabizzi, Sara, Cocci, Andrea, Pier A Della Camera, Criscuoli, Luciana, Gianmartin Cito   +26 more
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Distribution of CFTR and IVS8polyT genotypes in the two groups of patients divided according to the histopathological results: obstructive azoospermia and nonobstructive azoospermia/oligozoospermia.

, 2014
[−] means no CF mutation detected on single chromosome.Distribution of CFTR and IVS8polyT genotypes in the two groups of patients divided according to the histopathological results: obstructive azoospermia and nonobstructive azoospermia/oligozoospermia.
Marija Mircevska (658227), Dijana Plaseska-Karanfilska (125134), Svetlana Madjunkova (658226), Vanja Filipovski (658229), Toso Plaseski (658228), Predrag Noveski (658225)   +5 more
core   +1 more source

TKTL1: a new candidate gene in non-obstructive azoospermia

Reproductive BioMedicine 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. ; https://orcid.org/0000-0002-2170-8337, Patyk, A., Jedrzejczak, P., Kostyk, J., Graczyk, Z., Ibrahim, R., Bednarek-Rajewska, K., Berger, A., Yatsenko, A., Kurpisz, M.   +12 more
openaire   +3 more sources

Current techniques in management of obstructive azoospermia

, 2010
Azoospermia is the total absence of spermatozoa in the ejaculate. Azoospermia is found in 10% to 15% of male infertility cases and is caused by a testicular insufficiency in the majority of patients. Obstructive azoospermia is less frequent and arises in
BELGRANO, Emanuele, LIGUORI, GIOVANNI, Napoli, R., Rizzo, M., Benvenuto, S., TROMBETTA, CARLO, Bucci, S., Zordani, A.   +7 more
core  

Investigation of the pregnancy rate after intracytoplasmic sperm injection in patients with obstructive and non-obstructive azoospermia

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2005
Background and objective: In 10-20% of men with abnormal semen, azoosperima, the absence of sperm in ejaculation is common. Up to now, there has been no chance of pregnancy for couples in which the male partner had permanent azoospermia except by the use
M Mehr Afza, R Tavakol Nia, H Dasht Dar, F Farzi, M Oudi, A Hosseini   +5 more
doaj  

The ghrelin and orexin activity in testicular tissues of patients with idiopathic non-obstructive azoospermia

, 2018
The aim of the present study is to evaluate the presence of ghrelin and orexin in the testicular tissue of patients who have undergone microscopic testicular sperm extraction (micro-TESE) due to idiopathic non-obstructive azoospermia. Seventy azoospermic
Oguz Ozkanli, Mehmet Murad Basar, Bulent Erol, Semra Kahraman, Serkan Selimoglu, Seyma Ozkanli, Fuad Nurili   +6 more
core   +1 more source

Study of AZF Microdeletions in Men with Non-obstructive Azoospermia or Severe Oligospermia with Normal Karyotype Short Title: AZF and Infertility [PDF]

Armaghane Danesh Bimonthly Journal
Background & aim: Microdeletions of the long arm of the Y chromosome cause approximately 6-8% of cases Non-obstructive azoospermia and a smaller percentage of severe oligospermia cases.
R Noujavan, SA Rahmani, A Ghasemzadeh
doaj  

Laboratory processing and intracytoplasmic sperm injection using epididymal and testicular spermatozoa: what can be done to improve outcomes?

Clinics
There are two main reasons why sperm may be absent from semen. Obstructive azoospermia is the result of a blockage in the male reproductive tract; in this case, sperm are produced in the testicle but are trapped in the epididymis.
Wana Popal, Zsolt P. Nagy
doaj   +1 more source

Serum Metabolomic Profiling Identifies Characterization of Non-Obstructive Azoospermic Men

, 2017
Male infertility is considered a common health problem, and non-obstructive azoospermia with unclear pathogenesis is one of the most challenging tasks for clinicians. The objective of this study was to investigate the differential serum metabolic pattern
Mingming Zhao, Hui Jiang, Lemin Zheng, Yuzhuo Yang, Yingwei Zhang, Han Wu, Changjie Liu, Haocheng Lin, Hongliang Zhang, Zhe Zhang   +9 more
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Bi-allelic recessive loss-of-function variants in FANCM cause non-obstructive azoospermia

, 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
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