Results 61 to 70 of about 39,756 (255)

One number to rule them all: The Wildlife Sperm Index for standardized gamete assessment

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract In wildlife conservation, breeding programmes focused on reintroduction are critical to recovering endangered species. Assisted reproductive technologies (ARTs) and biobanking play pivotal roles in these efforts but depend on high‐quality gametes.
Leah Jacobs   +4 more
wiley   +1 more source

Sperm Retrieval in Non-Azoospermic Patients with Intact Ejaculation: A Narrative Review [PDF]

open access: yesInternational Journal of Fertility and Sterility
Although existing research on sperm retrieval predominantly focuses on azoospermic patients, assisted reproductive technology(ART) candidates without azoospermia may still face challenges during oocyte retrieval.
Naser Amir Jannati   +4 more
doaj   +1 more source

Subclinical Hypothyroidism and Intracytoplasmic Sperm Injection Outcomes [PDF]

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2016
Purpose Whether preconception elevated concentrations of thyroid-stimulating hormone (TSH) compromises reproductive outcomes in patients undergoing assisted reproduction techniques (ARTs) remains unclear.
Marcela de Alencar Coelho Neto   +4 more
doaj   +1 more source

Robotic ICSI (Intracytoplasmic Sperm Injection) [PDF]

open access: yesIEEE Transactions on Biomedical Engineering, 2011
This paper is the first report of robotic intracytoplasmic sperm injection (ICSI). ICSI is a clinical procedure performed worldwide in fertility clinics, requiring pick-up of a single sperm and insertion of it into an oocyte (i.e., egg cell). Since its invention 20 years ago, ICSI has been conducted manually by a handful of highly skilled embryologists;
Zhe, Lu   +5 more
openaire   +2 more sources

High incidence of chromosomal abnormalities in large-headed and multiple-tailed spermatozoa [PDF]

open access: yes, 2006
Rodrigo Vivo, Lorena, lorovi@alumni.uv.es ; Prados Dodd, Nicolas, Nicolas.Prados@uv.es ; Gil Salom, Manuel Luis, Manuel.Gil-Salom@uv.es ; Remohi Gimenez, Jose Alejandro, J.Alejandro.Remohi@uv ...
Gil Salom, Manuel   +6 more
core   +2 more sources

Development of a nomogram for sperm retrieval at microTESE for idiopathic non‐obstructive azoospermia in a multi‐center cohort study

open access: yesAndrology, EarlyView.
Abstract Background Non‐obstructive azoospermia (NOA) affects approximately 10% of infertile men and represents a major challenge in assisted reproductive technology (ART). A model that includes histological variants could be helpful in predicting sperm retrieval rate (SRR) after microdissection testicular sperm extraction (mTESE) in patients affected ...
Giorgio Ivan Russo   +10 more
wiley   +1 more source

EFFECTIVENESS OF ASSISTED REPRODUCTIVE TREATMENT PROGRAMS DEPENDING ON THE CHARACTERISTICS OF SPERMOGRAM CHANGES

open access: yesАндрология и генитальная хирургия, 2018
Introduction. There’re some pathological mechanisms of male fertility disorders that still don’t have proper diagnostic tests. This significantly decreases diagnostic value of a spermogram and makes the problem of evaluation of the characteristics of ...
S. I. Gamidov   +5 more
doaj   +1 more source

A comparison of the relative efficiency of ICSI and extended culture with epididymal sperm versus testicular sperm in patients with obstructive azoospermia

open access: yesAsian Journal of Andrology, 2020
This is a retrospective cohort study comparing blastocyst transfer outcomes following intracytoplasmic sperm injection utilizing epididymal versus testicular sperm for men with obstructive azoospermia.
Scott J Morin   +6 more
doaj   +1 more source

Transcription Factor TCF12‐Mediated Maternal Gene Expressions in Mouse Oocyte Are Prerequisites of Successful Fertilisation and Zygotic Genome Activation

open access: yesCell Proliferation, EarlyView.
Maternal TCF12 ensures the competence of fertilisation by controlling the expression of Astl and the proper location of cortical granules. Furthermore, maternal TCF12 maintains the phosphatase activity of PP2A by regulating the expression of Arpp19. Oocyte‐specific deletion of Tcf12 leads to fertilisation defects as well as ZGA failure at the 2‐cell ...
Lan‐Rui Cao   +7 more
wiley   +1 more source

A Japanese man with spina bifida who successfully fathered a child following fertility treatment

open access: yesIJU Case Reports, 2020
Introduction Spina bifida is a congenital anomaly caused by a neural tube closure defect that may result in sexual dysfunction. Sexual dysfunction and infertility are prevalent in spina bifida patients but have been scarcely reported.
Daisuke Gotoh   +8 more
doaj   +1 more source

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