Results 31 to 40 of about 6,674 (223)
Treatment of Asthenozoospermia by Intratesticular Testosterone Therapy [PDF]
Archives of Andrology, 1983 A single intratesticular injection of 0.5 cc of 50 mg/ml of an aqueous testosterone suspension was administered to 14 patients with asthenozoospermia. In 7 cases, injection was combined with ultrasound of 0.5 w/cm2 for 2 min weekly for 4 weeks. In another 4 cases, only ultrasound was applied.
M S, Fahim +4 more
openaire +2 more sources
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 +6 more
doaj +1 more source
Absence of annulus in human asthenozoospermia: Case Report† [PDF]
Human Reproduction, 2009 The annulus is a septin-based ring structure located at the junction of the midpiece (MP) and the principal piece (PP) of spermatozoa flagellum. In the mouse, deletion of Septin 4, a structural component of the sperm annulus, prevents annulus formation and leads to MP-PP disjunction, flagellar bending, asthenozoospermia and male sterility. Testis anion
P, Lhuillier +8 more
openaire +2 more sources
Sperm defects in primary ciliary dyskinesia and related causes of male infertility [PDF]
, 2020 The core axoneme structure of both the motile cilium and sperm tail has the same ultrastructural 9 + 2 microtubular arrangement. Thus, it can be expected that genetic defects in motile cilia also have an effect on sperm tail formation.
Loebinger, Michael R. +4 more
core +2 more sources
PSIII-4 Asthenozoospermia in geomagnetic activity
Journal of Animal Science, 2020 Abstract Reproductive qualities depend on a complex of biotic and abiotic factors. The ejaculate of bulls is characterized by morphological heterogeneity. Pathologies in the structure of each segment or several segments simultaneously may occur under the influence of biotic and abiotic factors.
Iolchiev B.S. +3 more
openaire +2 more sources
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 +3 more
openaire +2 more sources
Sperm preparation for ART [PDF]
, 2003 The onset of clinical assisted reproduction, a quarter of a century ago, required the isolation of motile spermatozoa. As the indication of assisted reproduction shifted from mere gynaecological indications to andrological indications during the years ...
Schill Wolf-Bernhard, Henkel Ralf R
core +2 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
Decreased piRNAs in Infertile Semen Are Related to Downregulation of Sperm MitoPLD Expression
Frontiers in Endocrinology, 2021 Currently, the molecular mechanisms underlining male infertility are still poorly understood. Our previous study has demonstrated that PIWI-interacting RNAs (piRNAs) are downregulated in seminal plasma of infertile patients and can serve as molecular ...
Yeting Hong +8 more
doaj +1 more source
Assessment of Thyroid Functions and its Relationship With Semen Quality in Men [PDF]
International Journal of Basic Science in Medicine, 2023 Introduction: In recent years, a partial relationship has been discovered between thyroid hormones and the formation of germ cells and the process of spermatogenesis.
Luay Qasim Abdulhameed
doaj +1 more source