Results 81 to 90 of about 84,929 (246)

Flavins in chick embryo.

open access: yesJournal of Nutritional Science and Vitaminology, 1975
During incubation of fertilized hen egg, flavin in egg white migrated into the embryo. The total amount of flavins in the embryo increased with development. On the 7th day of incubation, molar ratio of riboflavin and flavin nucleotides in the embryo was already similar to that of animal tissues. Even though appreciable amounts of FMN and FAD were found
K, Yagi, F, Negase
openaire   +3 more sources

Nest Survival Models and Genomics Illuminate Hybridisation Attempts, Guiding Culturally Informed Management to Recover a Critically Endangered Seabird

open access: yesAnimal Conservation, EarlyView.
Long‐term monitoring has revealed hybridisation attempts between the Critically Endangered Kuaka Whenua Hou (KWH, Pelecanoides whenuahouensis) and the abundant Kuaka (P. urinatrix). Here we use modelling based on population monitoring data in tandem with genomic data to investigate these attempts and the risk they pose to KWH recovery.
N. J. Forsdick   +4 more
wiley   +1 more source

Embryo development and chick growth in a helium - oxygen atmosphere [PDF]

open access: yes
Embryo development and chick growth in helium- oxygen ...
Hiatt, E. P.   +2 more
core   +1 more source

Bound Sugars in Chick Embryo Fibroblasts

open access: yesPoultry Science, 1972
Abstract Bound sugars in leukosis-sarcoma (L-S) virus susceptible and resistant fibroblasts were measured by the technique of isotope dilution after growth in media containing uniformly labeled [14 C]- d -glucose. After acid hydrolysis, the relative distribution of seven sugars in normal chick embryo fibroblasts was similar to that found in HeLa ...
E J, Smith, L B, Crittenden
openaire   +2 more sources

Targeting the Notch receptor dimerization domain to inhibit Notch signalling—A new avenue of therapeutics

open access: yesThe FEBS Journal, EarlyView.
Notch signalling is an evolutionarily conserved signalling pathway that directs cell growth and differentiation across multiple tissue types, and its regulation must be controlled across the lifespan. Aberrant Notch signalling due to genetic mutations that occur within the negative regulatory region of the Notch 1 gene is linked to the development of ...
Gerard F Hoyne
wiley   +1 more source

Behavioural and fitness effects of experimental immune activation during incubation in a wild passerine

open access: yesIbis, EarlyView.
Incubation is vital for avian embryo development but demands significant parental investment, potentially at the cost of self‐maintenance and immune function. For example, the acute phase response (APR), a systemic reaction against inflammation, infection or tissue injury, can trigger sickness behaviours such as reduced activity and foraging.
Isabel Barreda   +4 more
wiley   +1 more source

Formation of vertebral precursors: Past models and future predictions [PDF]

open access: yes, 2003
Disruption of normal vertebral development results from abnormal formation and segmentation of the vertebral precursors, called somites. Somitogenesis, the sequential formation of a periodic pattern along the antero-posterior axis of vertebrate embryos ...
Baker, Ruth E.   +2 more
core   +1 more source

Practitioner Review: Infant mental health meets cell and molecular biology – a look to the future

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background A major research effort in the past two decades has begun to illuminate how experience ‘gets under the skin’ – that is – the cellular and molecular processes that are associated with adversity and resilience. Methods We selectively review three areas of this research: epigenetics, especially DNA methylation, telomere length, and inflammatory
Charles H. Zeanah   +3 more
wiley   +1 more source

Avian neural crest cell migration is diversely regulated by the two major hyaluronan-binding proteoglycans PG-M/versican and aggrecan [PDF]

open access: yes, 2000
It has been proposed that hyaluronan-binding proteoglycans play an important role as guiding cues during neural crest (NC) cell migration, but their precise function has not been elucidated.
Bellina, Isabella   +11 more
core  

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres   +5 more
wiley   +1 more source

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