Results 21 to 30 of about 31,236 (235)

Pilot study for early prognosis of Azoospermia in relation to Y-STR Profiling

open access: yesEgyptian 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
doaj   +1 more source

An update on the potential for male contraception : emerging options [PDF]

open access: yes, 2013
The human population continues to grow and is estimated to rise to 10.1 billion by the end of the century. Therefore, there is still an unmet need for safe and highly effective contraceptive options for both men and women.
Alsaadi, Manal   +5 more
core   +1 more source

Genetic and sex hormone analysis of infertile men

open access: yesJournal 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
doaj   +1 more source

Simultaneous microsurgical spermatic vein ligation and sclerotherapy - A combined procedure for the treatment of recurrent or persistent varicocele [PDF]

open access: yes, 2001
Objectives: Microsurgical ligation as well as antegrade sclerotherapy have been established in varicocele treatment. The aim of this study was to evaluate whether a combination of microsurgery.
Adam, C.   +6 more
core   +1 more source

The gene regulatory role of non-coding RNAs in non-obstructive azoospermia

open access: yesFrontiers 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
doaj   +1 more source

DETEKSI DELESI GEN DAZ (Deleted in AZoospermia) PADA PRIA AZOOSPERMIA DENGAN METODE PCR (Polymerase Chain Reaction)

open access: yesMedical 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
doaj   +1 more source

Predictors of testicular sperm retrieval in patients with non-obstructive azoospermia: a review

open access: yesJournal 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
doaj   +1 more source

Genomic copy number variation association study in Caucasian patients with nonsyndromic cryptorchidism [PDF]

open access: yes, 2016
Copy number variation (CNV) is a potential contributing factor to many genetic diseases. Here we investigated the potential association of CNV with nonsyndromic cryptorchidism, the most common male congenital genitourinary defect, in a Caucasian ...
Abrams, Debra J.   +17 more
core   +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  

Role of androgen and gonadotrophins in the development and function of the Sertoli cells and Leydig cells: data from mutant and genetically modified mice [PDF]

open access: yes, 2009
Development and maintenance of the male phenotype and establishment of fertility are all dependent upon the activity of the Sertoli cells and Leydig cells of the testis.
Abel, M.H.   +4 more
core   +1 more source

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