Results 141 to 150 of about 15,361,986 (325)

The effect of GnRH analogues on oocyte morphology and subsequent embryo development following intra cytoplasmic sperm injection (ICSI) [PDF]

مجلة جامعة الانبار للعلوم الصرفة
A competent, morphologically normal gamete (oocyte or sperm) is essential for successful fertilization, the development of a good-quality embryo, and implantation.
Muhjah Hassan, Saba Hussain, Rabab Al-Yasiry, Sahbaa Sagban, Pallav Sengupta, Sulagna Dutta   +5 more
doaj   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

Redox Biology of Human Cumulus Cells: Basic Concepts, Impact on Oocyte Quality, and Potential Clinical Use

Antioxidants and Redox Signaling, 2019
Significance: Four decades have passed since the first successful human embryo conceived from a fertilization in vitro. Despite all advances, success rates in assisted reproduction techniques still remain unsatisfactory and it is well established that ...
L. von Mengden, F. Klamt, J. Smitz
semanticscholar   +1 more source

Precision therapies for genetic epilepsies in 2025: Promises and pitfalls

Epilepsia Open, EarlyView.
Abstract By targeting the underlying etiology, precision therapies offer an exciting paradigm shift to improve the stagnant outcomes of drug‐resistant epilepsies, including developmental and epileptic encephalopathies. Unlike conventional antiseizure medications (ASMs) which only treat the symptoms (seizures) but have no effect on the underlying ...
Shuyu Wang, Emilio Perucca, Samuel F. Berkovic, Piero Perucca   +3 more
wiley   +1 more source

Is the oocyte quality affected by endometriosis? A review of the literature

Journal of Ovarian Research, 2017
Endometriosis is an estrogen-dependent chronic inflammatory condition that affects women in their reproductive period causing infertility and pelvic pain.
A. Sanchez, V. Vanni, L. Bartiromo, E. Papaleo, E. Zilberberg, M. Candiani, R. Orvieto, P. Viganò   +7 more
semanticscholar   +1 more source

Impact of donor mare and stallion identity on the likelihood of pregnancy after transfer of in vitro produced embryos

Equine Veterinary Journal, EarlyView.
Abstract Background The success of in vitro embryo production (IVEP) is influenced by donor mare and stallion. Objectives To determine whether donor mare and stallion influence the pregnancy rate after transfer of in vitro produced (IVP) blastocysts and to identify factors influencing the likelihood of obtaining one or more pregnancies from a single ...
M. Papas, T. A. E. Stout, J. C. M. Vernooij, B. Leemans, L. Arnold, M. M. Beitsma, L. I. Wijnands, M. de Ruijter‐Villani, S. Colleoni, G. Lazzari, C. Galli, A. Claes   +11 more
wiley   +1 more source

Age, embryo donor status, and insemination with chilled semen all predispose to persistent breeding‐induced endometritis in warmblood mares

Equine Veterinary Journal, EarlyView.
Abstract Background Persistent breeding‐induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility.
Tom Stout, Rik Serrarens, Bart Leemans, Anthony Claes   +3 more
wiley   +1 more source

Veterinarian and breeder perspectives surrounding ovum pick‐up and intracytoplasmic sperm injection in mares: A survey study

Equine Veterinary Journal, EarlyView.
Abstract Background There is an ethical debate about the application of ovum pick‐up (OPU) and intracytoplasmic sperm injection (ICSI) in mares. Objectives To survey the opinions of equine veterinarians and breeders of sport horses on the ethics of using OPU–ICSI in mares. Study Design Cross‐sectional descriptive study.
Niamh Lewis, Jannie Spanner, Peter Daels, Juan Cuervo Arango, Monica Morganti, Pouya Dini, Kate Allen, Siobhan Mullan   +7 more
wiley   +1 more source

Vacuolated and post-mature oocyte characteristics: does it matter in fertilization rate and embryo quality?

Middle East Fertility Society Journal
Background/aim Oocyte quality is a critical factor in female fertility, and the evaluation of the competent developmental potential of oocytes is one approach to predicting successful fertilization and embryo development.
Fatemehsadat Amjadi, Elham Hematyar, Hossein Eyni, Mandana Rashidi Meybodi, Naghmeh Shahbaztabari, Elham Hosseini   +5 more
doaj   +1 more source

Mitochondrial Dysfunction and Age - related Oocyte Quality

, 2017
Fertility disorders have become a growing problem worldwide. It is well known that female fertility decreases with age, previous studies suggested that the age-related decline in female fertility potential was largely due to decrease in oocyte quality ...
Ri-Cheng Chian, Han Li
core   +1 more source