Results 51 to 60 of about 684,181 (361)

A comprehensive assessment of predictors of fertility outcomes in men with non-obstructive azoospermia undergoing microdissection testicular sperm extraction

open access: yesReproductive Biology and Endocrinology, 2020
Background Microdissection testicular sperm extraction (microTESE) in men with non-obstructive azoospermia (NOA) is the procedure that results in the highest number of sperm cells retrieved for in vitro fertilization (IVF).
Parviz K. Kavoussi   +9 more
doaj   +1 more source

Effect of Microfluidic Sperm Separation vs. Standard Sperm Washing Processes on Laboratory Outcomes and Clinical Pregnancy Rates in an Unselected Patient Population

open access: yesReproductive Medicine, 2021
A prospective, multicenter, randomized, sibling oocyte study was conducted with 86 couples to evaluate if a microfluidic sperm separation device improved ICSI sperm selection and subsequent cycle outcomes of fertilization, blastocyst utilization, ploidy,
Chelsey A. Leisinger   +6 more
doaj   +1 more source

American Society of Clinical Oncology recommendations on fertility preservation in cancer patients.

open access: yesJournal of Clinical Oncology, 2006
PURPOSE To develop guidance to practicing oncologists about available fertility preservation methods and related issues in people treated for cancer. METHODS An expert panel and a writing committee were formed.
Stephanie J. Lee   +8 more
semanticscholar   +1 more source

Knockout of the mitoribosome rescue factors Ict1 or Mtrfr is viable in zebrafish but not mice: compensatory mechanisms underlying each factor's loss

open access: yesFEBS Open Bio, EarlyView.
Mitochondria contain two mitoribosome rescue factors, ICT1 and MTRFR (C12orf65). ICT1 also functions as a mitoribosomal protein in mice and humans, and its loss is lethal. Although Mtrfr knockout mice could not be generated, knockout zebrafish lines for ict1 and mtrfr were established.
Nobukazu Nameki   +11 more
wiley   +1 more source

Short peptide perturbs spermatogenesis via immune microenvironment dysregulation and mitochondrial imbalance

open access: yesFEBS Open Bio, EarlyView.
In the blood–testis barrier, occludin is crucial for tight junctions. This study demonstrates that occludin‐targeting short peptides disrupt junction integrity, inducing immune cell infiltration, tumor necrosis factor‐α/interleukin‐6 secretion and mitochondrial dysfunction, ultimately triggering apoptosis.
Heng Wang, Xiaofang Tan, Deyu Chen
wiley   +1 more source

#82 : Does Apoptotic Body Impair Pregnancy Outcome

open access: yesFertility & Reproduction, 2023
Background: Morphologically suboptimal blastocyst is often associated with poorer pregnancy outcomes. Apoptotic body is one of the abnormal findings in blastocysts characterised by cellular shrinkage and a darker appearance.
Nur Ilanah Rosli   +4 more
doaj   +1 more source

Fertilization 2: Polyspermic Fertilization [PDF]

open access: yes, 2017
During fertilization in animals, a haploid egg nucleus fuses with a haploid sperm nucleus to restore the diploid genome. In most animals including mammals, echinoderms, and teleostei, the penetration of only one sperm into an egg is ensured at fertilization because the entry of two or more sperm is prevented by polyspermy block systems in these eggs ...
openaire   +4 more sources

Fertility and ageing [PDF]

open access: yesHuman Reproduction Update, 2005
The late 20th century trend to delay birth of the first child until the age at which female fecundity or reproductive capacity is lower has increased the incidence of age-related infertility. The trend and its consequences have also stimulated interest in the possible factors in the female and the male that may contribute to the decline in fecundity ...
Baird, D.t.   +19 more
openaire   +4 more sources

Functional parameters of spermatozoa obtained by a new selection device

open access: yesFEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez   +8 more
wiley   +1 more source

Healthy live birth following ICSI with retrograde ejaculated cryopreserved sperm

open access: yesInternational Journal of Endorsing Health Science Research, 2019
Background: Retrograde ejaculation is a medical condition that occurs when semen enters the urinary bladder (retrograde) during orgasm instead of passing through the penis (antegrade). Complete retrograde semen flow causes male infertility.
Neelam Barkat Ali   +4 more
doaj   +1 more source

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