Results 1 to 10 of about 14,053 (195)
Testicular ultrasound examination and hemodynamics of patients with azoospermia
Regulatory Mechanisms in Biosystems, 2022 The most difficult form of male infertility to treat is azoospermia. Azoospermia is defined as the complete absence of spermatozoa in the ejaculate. The age of the patients who underwent clinical and diagnostic studies varied between 22 and 45 years ...
M. Z. Vorobets +5 more
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Pilot study for early prognosis of Azoospermia in relation to Y-STR Profiling
Egyptian Journal of Medical Human Genetics, 2016 Background: Azoospermia constitutes 20% of male infertility situations and affects 1% of the total male population (Jarvi et al., 2010). This condition is classified into three major types; pre-testicular, testicular and post-testicular Azoospermia ...
Ahmed M. Refaat
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The gene regulatory role of non-coding RNAs in non-obstructive azoospermia
Frontiers in Endocrinology, 2022 Non-coding RNAs are classified as small non-coding RNAs, long non-coding RNAs and circular RNAs, which are involved in a variety of biological processes, including cell differentiation, proliferation, apoptosis and pathological conditions of various ...
Guanqing Zhou +15 more
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Genetic and sex hormone analysis of infertile men
Journal of International Medical Research, 2020 Objective Genetic defects and endocrine-related factors are the leading causes of male infertility. This study was performed to analyze the genetic characteristics and sex hormone levels in different types of male infertility.
Xiaolei Xie +5 more
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Medical Technology and Public Health Journal, 2018 At this time the case of azoospermia is quite common in infertile men. Azoospermia is a condition where the semen does not contain sperm. Many causes azoospermia, including the deletion of a gene at the locus that is located on the Y chromosome long arm
V.A. Ferandra, Sukarjati Sukarjati
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Predictors of testicular sperm retrieval in patients with non-obstructive azoospermia: a review
Journal 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
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Bilharziasis and Azoospermia [PDF]
Archives of Andrology, 1980 Two patients in their twenties were investigated for a complaint of primary sterility. Semen analysis, showed azoospermia and testicular biopsy showed inhibited spermatogenesis in association with bilharzia ova in the interstitium in both cases. No similar cases were reported previously in the literature.
S M, Girgis, N F, Wassef
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Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE [PDF]
Einstein (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
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Reproductive Biology and Endocrinology, 2022 Background There is a lack of biomarkers for distinguishing non-obstructive azoospermia (NOA) patients with successful sperm retrieval (Sp+) from those with failed sperm retrieval (Sp-).
Xiaoxiao Han +10 more
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Analysis of Y Chromosome Microdeletions and Mutation in Exon7 of the STAG3 Gene in Iranian Infertile Men with Idiopathic Non-Obstructive Azoospermia [PDF]
Majallah-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
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