Results 31 to 40 of about 3,612 (170)

Severe asthenozoospermia: a structural and functional study [PDF]

International Journal of Andrology, 1995
SummaryEjaculates from 25 patients with severe asthenozoospermia (all spermatozoa immotile or only non‐progressively motile) were studied to identify individually the cause of impaired motility. Multiple tests were performed, viz. light and electron microscopic studies and sperm function tests.
K, Gopalkrishnan, V, Padwal, S, D'Souza, R, Shah   +3 more
openaire   +2 more sources

Proteomic Landscape of Human Sperm in Patients with Different Spermatogenic Impairments

Cells, 2023
Although the proteome of sperm has been characterized, there is still a lack of high-throughput studies on dysregulated proteins in sperm from subfertile men, with only a few studies on the sperm proteome in asthenozoospermic and oligoasthenozoospermic ...
Lea Simone Becker, Mohammad A. Al Smadi, Markus Raeschle, Shusruto Rishik, Hashim Abdul-Khaliq, Eckart Meese, Masood Abu-Halima   +6 more
doaj   +1 more source

Evaluation of SEPT2 and SEPT4 transcript contents in spermatozoa from men with asthenozoospermia and teratozoospermia

Health Science Reports, 2021
Background and aims Motility and morphological defects of spermatozoa can cause male infertility. Sperm RNAs are related to sperm quality. They are considered to have clinical values as a biomarker for assessing sperm quality and fertility potential. The
Madiheh Mazaheri Moghaddam, Marziyeh Mazaheri Moghaddam, Mohammad Amini, Behzad Bahramzadeh, Amir Baghbanzadeh, Alireza Biglari, Ebrahim Sakhinia   +6 more
doaj   +1 more source

Meningkatnya hidrogen peroksida pada varian T16189C mtDNA semen manusia

Journal of Biological Researches, 2012
Mitochondria are a site of cellular respiration through oxidative phosphorylation enzymatic reaction (OXPHOS), which is producing energy in the form of ATP (Adenosine Triphosphate).
Sudjarwo Sudjarwo
doaj   +1 more source

Adnexal Gland Secretion Markers in Unexplained Asthenozoospermia [PDF]

Archives of Andrology, 1994
Prostatic acid phosphatase, prostate-specific antigen, and zinc as markers of prostate, and fructose as marker of seminal vesicles were investigated in the seminal plasma of 35 idiopathic asthenozoospermic and 20 normal subjects to evaluate their relationship with sperm motility.
Carpino A, SISCI, Diego, AQUILA, Saveria, Salerno M, Siciliano L, Sessa MT, ANDO' S.   +6 more
openaire   +4 more sources

Synergistic Protection of L-Arginine and Vitamin E On Lipid Peroxidation of Asthenospermic Patients [PDF]

International Journal of Fertility and Sterility, 2008
Background Lipid peroxidation is known to cause various impairments to sperm cells and may play a major role in the etiology of male infertility. Asthenospermia is the main factor of male infertility and has significantly higher level of peroxidation ...
Sudha Srivastava
doaj   +1 more source

The role of iron in normal and impaired testicular function

Andrology, EarlyView.
Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer, Esther G. Meyron‐Holtz, Andreas Meinhardt   +2 more
wiley   +1 more source

Sperm Telomere Interactions Are Impaired in Testicular Cancer Before and After Adjuvant Therapy

Andrology, EarlyView.
ABSTRACT Background No study has yet explored telomere length or interaction in sperm nuclei of testicular cancer (TC) patients exposed to chemotherapy or radiotherapy. However, sperm telomere dynamics have emerged as a potential marker in male infertility.
Benoit Berby, Sylvianne Hennebicq, Jacqueline Saias, Florence Brugnon, Isabelle Berthaut, Myriam Daudin, Louis Bujan, Ludovic Dumont, Christine Rondanino, Aurélie Feraille, Nathalie Rives   +10 more
wiley   +1 more source

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

The role of SRD5A2 enzyme levels and activity in infertile men in Tikrit, Iraq

Tikrit Journal of Pure Science
Male infertility, impacting 40-50% of couples globally, encompasses various classifications such as azoospermia, oligozoospermia, asthenozoospermia, and azzospermia.
Adnan F. Al-Azzawie, Mousa Jasim Mohammed, Ahmed AbdulJabbar Suleiman   +2 more
doaj   +1 more source