Results 61 to 70 of about 46,526 (241)
Causes and Treatment of Implantation Failure
Taiwanese Journal of Obstetrics & Gynecology, 2005 In recent years, a high fertilization rate has been achieved via the rapid evolution of assisted reproductive technology. However, the overall pregnancy rate remains the same. Implantation failure appears to be one factor. In preparation for implantation,
Atsushi Yanaihara +2 more
doaj +1 more source
The First Report of Successfully Pregnancy after ICSI with Combined DGC/Zeta Sperm Selection Procedure in a Couple with Eleven Repeated Fail IVF/ICSI Cycles [PDF]
International Journal of Fertility and Sterility, 2010 This is the first report implementing combined density gradient centrifugation/Zeta (DGC/Zeta) sperm selection procedure for a couple with eleven previous intra cytoplasmic sperm injection/ in vitro fertilization (ICSI/IVF) failure cycles. Semen analysis
Mohammad Reza Deemeh +6 more
doaj +1 more source
Causes of Fertilization Failure in Repeat Breeding Cattle
Journal of Dairy Science, 1968 Abstract One hundred and four ova were recovered from 150 cows (69.3%), and 58 of them were fertilized (55.8% of the ova). The fertilization rate was significantly lower (48.5%) for cows bred during the first eight hours of heat than for those bred 16 hours later (68.6%). Breeding twice during the heat period (during the first eight hours and again 16
A P, Graden +3 more
openaire +2 more sources
PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility
Advanced Science, EarlyView.PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao +7 more
wiley +1 more source
THROMBOPHILIA AND FAILURES OF EXTRACORPORAL FERTILIZATION
Obstetrics, Gynecology and Reproduction, 2015 Objective. It was study the frequency and a range of the genetic and acquired thrombophilia at patients with failures of in-vitro fertilization (IVF). Materials and methods. 115 women who had from 1 to 9 unsuccessful attempts of IVF were examined. Genetic thrombotic mutations, circulation AFA and level of a gomotsistein (an immunofermental method) were
openaire +3 more sources
Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction
Advanced Science, EarlyView.During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao +8 more
wiley +1 more source
Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution
Advanced Science, EarlyView.Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley +1 more source
Targeting Supramolecular Active Complexes of Nav1.7/Nav1.8 to Relieve Chronic Neuropathic Pain
Advanced Science, EarlyView.In mice and patients with severe chronic neuropathic pain (NP), Nav1.7, Nav1.8, TrkB, and five cytoskeletal proteins form supramolecular active complexes (SMACs) with polygonal lattice structures as noxious signal amplifiers in dorsal root ganglion (DRG) neurons.
Liting Sun +27 more
wiley +1 more source
Editorial: Genetics of female infertility
Frontiers in Genetics, 2023 Masood Bazrgar, Hamid Gourabi
doaj +1 more source
FERTILIZATION FAILURE IN HEIFERS INFECTED BY UREAPLASMA DIVERSUM
Инфекция и иммунитет, 2018 .
A. N. Vaganova +4 more
doaj +1 more source