Results 51 to 60 of about 8,925 (264)

Ontogeny of murine bony semicircular canal form

open access: yesThe Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna   +1 more
wiley   +1 more source

Early developmental actions of endocrine disruptors on the hypothalamus, hippocampus, and cerebral cortex. [PDF]

open access: yes, 2011
peer reviewedSex steroids and thyroid hormones play a key role in the development of the central nervous system. The critical role of these hormonal systems may explain the sensitivity of the hypothalamus, the cerebral cortex, and the hippocampus to ...
Bourguignon, Jean-Pierre   +4 more
core   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Relationship between polymorphism of growth hormone and precocity traits in Nellore heifers [PDF]

open access: yes, 2011
Avaliaram-se as relações entre o polimorfismo do gene do hormônio do crescimento (GH) e as características de precocidade, em novilhas da raça Nelore.
ANDREA, M.V   +5 more
core   +3 more sources

Projected Warming of the Southern Ocean Disrupts Embryonic Development and Hatch Timing in Antarctic Fish

open access: yesGlobal Change Biology Communications, EarlyView.
Embryos are particularly sensitive to thermal challenge. Antarctic fish embryos raised at projected Southern Ocean temperatures hatch during the winter, have a high incidence of morphological abnormalities, have shorter body lengths, and express genes indicative of cellular stress.
Margaret Streeter   +6 more
wiley   +1 more source

Estimativas de herdabilidade para perímetro escrotal de animais da raça Nelore Heritability estimates for scrotal circumference in Nelore cattle

open access: yesRevista Brasileira de Zootecnia, 2003
Estimaram-se parâmetros genéticos e de ambiente para perímetro escrotal ao sobreano (PE) de 9.355 animais da raça Nelore. Foram considerados no modelo o efeito aleatório de animal e os efeitos fixos de grupo contemporâneo (GC) e os efeitos linear e ...
Laila Talarico Dias   +2 more
doaj   +1 more source

Qualitative assessment of precocious puberty-related user-created contents on YouTube [PDF]

open access: yesAnnals of Pediatric Endocrinology & Metabolism, 2015
PurposeUser-created content (UCC) has provided a considerable amount of medical information and become an important source. We aimed to evaluate the quality and scientific accuracy of precocious puberty-related UCC on YouTube.MethodsThe keywords ...
Hyo-Kyoung Nam   +4 more
doaj   +1 more source

Genetic models for the study of luteinizing hormone receptor function [PDF]

open access: yes, 2015
The luteinizing hormone/chorionic gonadotropin receptor (LHCGR) is essential for fertility in men and women. LHCGR binds luteinizing hormone (LH) as well as the highly homologous chorionic gonadotropin.
Narayan, Prema
core   +3 more sources

Endometrial Stromal Cell Senescence: A Non‐Negligible Factor in Recurrent Pregnancy Loss

open access: yesiMetaMed, EarlyView.
As populations age, links between female reproductive aging and infertility are increasingly evident. Cellular senescence, characterized by near‐irreversible cell‐cycle arrest and accumulation of damage, can impair tissue function. In the endometrium, aberrant senescence of endometrial stromal cells (EnSCs) may compromise receptivity, hinder embryo ...
Shuang Wu   +6 more
wiley   +1 more source

Van Wyk-Grumbach syndrome a great masquerader of primary hypothyroidism

open access: yesJournal of Clinical and Scientific Research
Children with primary hypothyroidism typically present with delayed growth and development, precocious puberty but on rare occasions can present with pituitary macroadenoma. This is called Van Wyk-Grumbach syndrome (VWGS).
Beatrice Anne   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy