Results 81 to 90 of about 104,321 (292)
Homozygous disruption of P450 side-chain cleavage (CYP11A1) is associated with prematurity, complete 46,XY sex reversal, and severe adrenal failure [PDF]
, 2005 Disruption of the P450 side-chain cleavage cytochrome (P450scc) enzyme due to deleterious mutations of the CYP11A1 gene is thought to be incompatible with fetal survival because of impaired progesterone production by the fetoplacental unit.
Achermann, JC +8 more
core +1 more source
Generating golden Syrian hamsters with conditional alleles via zygote microinjection of CRISPR/Cas9
Animal Models and Experimental Medicine, EarlyView.We established the first conditional knockout (cKO) model in the golden Syrian hamster by CRISPR/Cas9‐mediated genome editing. Cas9 protein, two sgRNAs, and a donor plasmid carrying loxP‐flanked exon 2 of the ApoF gene were microinjected into one‐cell embryos. The floxed allele was efficiently generated (up to 27%) and transmitted through the germline.
Wei Chen +16 more
wiley +1 more source
Left-Right Asymmetry in Chicken Embryonic Gonads
The Journal of Poultry Science, 2014 Avian embryos have reproductive organs with unique characteristics. In female, the gonads develop asymmetrically: the left gonad generates a functional ovary, whereas the right gonad and associated embryonic oviduct (Müllerian duct) regress.
Sittipon Intarapat, Claudio D. Stern
doaj +1 more source
, 1985 Analysis of Amazonian freshwater fish exhibited great differences in water- and fat content. Migratory species which deposit huge amounts of eggs in a single spawning act accumulate at high water-level great amounts of fat in various parts of the body ...
Junk, W.
core
Sex assignment in conditions affecting sex development [PDF]
, 2017 The newborn infant with atypical genitalia presents a challenging clinical scenario and requires expert input. There have been appreciable advances in our knowledge of the underlying causes that may lead to a mere difference or a more serious disorder of
Ahmed, S. Faisal, Markosyan, Renata
core +1 more source
The Anatomical Record, EarlyView.Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source
Animals, 2020 This research was aimed at estimating the effect of oral supplementation of Tamoxifen on productive efficiency, carcass characteristics, hormonal profile and gonadal structure of two broiler breeds.
Mona E.M. Younis +10 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
Combination of cervical cancer and unilateral complete aplasia of the adnexa: a case report
Бюллетень сибирской медицины, 2019 We present a rare case of the combination of cervical cancer and unilateral complete aplasia of the uterine adnexa. Female genital tract anomalies account for about 4% of all congenital malformations.Congenital malformations
A. L. Chernyshova +3 more
doaj +1 more source