Results 181 to 190 of about 8,317 (213)

Fine needle aspiration vs. mTESE in non‐obstructive azoospermia

International Journal of Andrology, 2008
SummaryThis study was carried out on 100 patients with non‐obstructive azoospermia (NOA) to compare between results and complications of fine needle aspiaartion (FNA) vs. microdissection testicular sperm extraction (mTESE) sperm retrieval. They underwent history taking, clinical examination, semen analysis, serum follicle stimulating hormone estimation
S, El-Haggar, T, Mostafa, T, Abdel Nasser, R, Hany, A, Abdel Hadi   +4 more
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[Stem cell therapy for non-obstructive azoospermia].

Zhonghua nan ke xue = National journal of andrology, 2021
Non-obstructive azoospermia (NOA) is an important factor that causes male infertility. Stem cells are a group of cells capable of self-renewal and multi-directional differentiation, and embryonic stem cells and induced pluripotent stem cells can generate spermatozoa through differentiation, which, however, is confronted with ethical constraints and the
Cun-Can, Deng, Gui-Hua, Liu
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Non-obstructive azoospermia and clinical varicocele: therapeutic options

International Urology and Nephrology, 2013
Ten to fifteen percent of infertile men are azoospermic, and sixty percent of these men have been classified as having non-obstructive azoospermia (NOA). NOA results from testicular failure, and one of the causes of this is the presence of varicocele. Varicocele is observed in 5-10 % of men with NOA.
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Intracytoplasmic sperm injection in obstructive and non-obstructive azoospermia

Human Reproduction, 1997
We compared the results of intracytoplasmic sperm injection (ICSI) in: (i) obstructive versus non-obstructive azoospermia, (ii) obstructive azoospermia using epididymal versus testicular spermatozoa and (iii) acquired versus congenital obstructive azoospermia due to congenital absence of the vas deferens (CAVD). A retrospective analysis was done of 241
R T, Mansour, A, Kamal, I, Fahmy, N, Tawab, G I, Serour, M A, Aboulghar   +5 more
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Testicular piRNA Analysis Identified Dysregulated piRNAs in Non-obstructive Azoospermia

Reproductive Sciences, 2023
Male infertility has remained idiopathic in a remarkable proportion of all cases. Gonadal expression of PIWI-interacting RNAs (piRNAs) has been shown to be vital to normal spermatogenesis, as they are expressed in almost all types of testicular germ cells. These molecules and their related Piwi proteins strictly regulate transposable elements' activity
Fahimeh Piryaei, Poonam Mehta, Hossein Mozdarani, Fatemeh Hamzehlooy, Mahmoud Barati, Zeynab Piryaei, Mohammad Ali Sadighi Gilani, Mohsen Alemi, Rajender Singh   +8 more
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Analysis of genes implicated in non-obstructive azoospermia

Steroids
Non-obstructive azoospermia (NOA) is the most common cause of male infertility, accounting for approximately 60 % of azoospermia cases. In recent years, gene mutations have emerged as the primary factor under investigation for the etiology of NOA. Therefore, finding the cause and pathogenesis of NOA at the genetic level has become one of the current ...
Junwei, Wang, Shuhui, Wang, Meng, Wang, Jinfei, Yang   +3 more
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[Non-obstructive azoospermia and ICSI].

Contraception, fertilite, sexualite (1992), 1998
50 cases of non obstructive azoospermia required testicular sperm extraction and ICSI. Results are promising but ability to find spermatozoa remains questionable. Further studies are necessary to improve success of the method. Genetic research also need to be developed for better understanding the process.
M, Adjiman, F X, Aubriot, A, Glissant, A, Hazout, C, Nathan, A, Stanovici, M, Dumont, P, Cohen-Bacrie   +7 more
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Non-Obstructive Azoospermia and the Impact of MicroTESE.

Irish medical journal, 2016
In non-obstructive azoospermia (NOA), no spermatozoa are present in the ejaculate as a result of compromised or absent spermatogenesis. NOA is distinguished from obstructive azoospermia by patient history, clinical examination and hormone profile. As much as 10% of all male infertility has been attributed to NOA1. In contrast to obstructive azoospermia,
Dineen, T, Waterstone, J, Cullen, I
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A case of non obstructive azoospermia

Endocrine Abstracts, 2023
D M Kumarathunga P A, Vindya Wellala, George Yovos, Puja Thadani, Harpal Randeva   +4 more
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Infertility treatment of men with non-obstructive azoospermia.

Acta Universitatis Palackianae Olomucensis Facultatis Medicae, 1998
Male infertility can be treated by several methods with varying degree of success. We present evidence that "open" testicular biopsy is favorable for men suffering from non-obstructive azoospermia (NOA). Moreover, any NOA patient may be subjected to this treatment even though his past histopathological examinations suggest that it is likely no sperm ...
A, Sobek, K, Hrbková, Z, Mucha, J, Vodicka, M, Tesarová, F, Zát'ura, J, Scheinar, J, Bártek   +7 more
openaire   +1 more source