Results 111 to 120 of about 84,929 (246)
Poultry Science, 1934 Abstract DURING the second day of incubation a rotation of the embryo begins which normally results in the turning of the chick to lie on its left side. A reverse movement causing the chick to lie on its right side is known as heterotaxia and is often associated with inversion of the viscera (Lillie 1 ).
openaire +1 more source
Insect Molecular Biology, Volume 35, Issue 3, Page 217-231, June 2026.Duplication of vas genes is universally observed in aphids, and phylogenetic analysis indicates that this event predates the divergence of Aphididae and Phylloxeridae. Ap‐vas1 is germline‐specific, whereas Ap‐vas2–4 exhibit somatic expression, indicating functional divergence during aphid embryogenesis.
Gee‐Way Lin +4 more
wiley +1 more source
Competence, specification and commitment in otic placode induction [PDF]
, 2000 The inner ear is induced from cranial ectoderm adjacent to the hindbrain. Despite almost a century of study, the molecular mechanisms of inner ear induction remain obscure. We have identified four genes expressed very early in the anlage of the inner ear,
Bronner-Fraser, Marianne +1 more
core
The wide gape of snakes: A comparison of the developing mandibular symphysis in sauropsids
Journal of Anatomy, Volume 248, Issue 6, Page 937-949, June 2026.Our analysis explores the adaptations at the mandibular symphysis required to allow extreme lower jaw mobility in macrostomate snakes taking a comparative approach. Abstract The origin and evolution of snakes has been marked by the acquisition of many morphological and functional novelties, one of which is the possession of a highly kinetic skull ...
Maricci Basa +3 more
wiley +1 more source
The Effects of Chicken Embryo Brain Extract on Sciatic Nerve Regeneration of Male Rat; An Experimental Study [PDF]
Bulletin of Emergency and Trauma, 2018 Objective: To determine the effects of chicken embryo brain extract (BE) on transects sciatic nerve in male rats.Methods: Thirty adult male Sprague-Dawley rats weighing 200 to 250 g, were randomized into three groups treated with (1) sham surgery, (2 ...
Fatemeh Rasouli-Sangani +2 more
doaj
Establishing neuronal identity in vertebrate neurogenic placodes [PDF]
, 2000 The trigeminal and epibranchial placodes of vertebrate embryos form different types of sensory neurons. The trigeminal placodes form cutaneous sensory neurons that innervate the face and jaws, while the epibranchial placodes (geniculate, petrosal and ...
Baker, Clare V. H. +1 more
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The FASEB Journal, Volume 40, Issue 9, 15 May 2026.Earlier in neurogenesis, knockdown of polycystin‐1 (PC1) expression increases the cell cycle length of neural progenitor cells (NPCs) by extending the S‐phase and probably lengthening the G1‐phase. Subsequently, reduced PC1 expression causes delayed cell cycle exit and delayed neuronal differentiation of NPCs.
Natalie Winokurow, Stefan Schumacher
wiley +1 more source
Coordinate actions of BMPs, Wnts, Shh and noggin mediate patterning of the dorsal somite [PDF]
, 1997 Shortly after their formation, somites of vertebrate embryos differentiate along the dorsoventral axis into sclerotome, myotome and dermomyotome.
Bronner-Fraser, Marianne +2 more
core
A Population‐Based Assessment of Cancer Risk in Children With VACTERL
American Journal of Medical Genetics Part A, Volume 200, Issue 5, Page 1004-1011, May 2026.ABSTRACT Cancer risk in children with VACTERL, a nonrandom co‐occurrence of ≥ 3 defects (vertebral, anal, cardiac, tracheoesophogeal fistula, renal, and limb), remains unclear. We evaluated this association in a population‐based study. We analyzed data from the Genetic Overlap Between Anomalies and Cancer in Kids (GOBACK) Study, a US registry linkage ...
Ji Yun Tark +15 more
wiley +1 more source
In ovo time-lapse analysis after dorsal neural tube ablation shows rerouting of chick hindbrain neural crest [PDF]
, 2000 Previous analyses of single neural crest cell trajectories have suggested important roles for interactions between neural crest cells and the environment, and amongst neural crest cells. To test the relative contribution of intrinsic versus extrinsic
Bronner-Fraser, Marianne +2 more
core