Results 311 to 320 of about 334,033 (329)
Some of the next articles are maybe not open access.
Developmental Regulation of Elastin Synthesis
Connective Tissue Research, 1981The regulation of elastin production has been evaluated and compared in two systems in the developing sheep: nuchal ligament and lung. Absolute rates of production in explant culture were estimated by immunoprecipitation of newly synthesized elastin and determination of precursor pool specific activities.
Kent Smith +3 more
openaire +3 more sources
Clocks regulating developmental processes
Current Opinion in Neurobiology, 1998Developmental clocks are hypothetical embryonic time-measuring devices--some are run by oscillators, whereas others depend on rate-limiting processes. Their existence has been deduced from recent studies of the timing of the midblastula transition, the opening of the Hox cluster during organogenesis, and oligodendrocyte progenitor differentiation ...
openaire +3 more sources
Developmental Regulation of the Immune System
Seminars in Perinatology, 2006Term newborns have a higher frequency of microbial infections than older children and adults. Extremely premature newborns (
openaire +2 more sources
Evolution of Developmental Regulation
The American Naturalist, 1989Our knowledge of the evolution of gene regulation is still rudimentary. From the few well-studied paradigms, it is apparent that regulatory systems are diverse and complex. Consequently, broad generalizations should not be made at this time. Rather, detailed molecular, developmental, and phylogenetic data are needed to elucidate simultaneously the ...
openaire +2 more sources
Developmental regulation of Suz12 localization
Chromosoma, 2005Chromatin modifications are among the epigenetic alterations essential for genetic reprogramming during development. The Polycomb group (PcG) gene family mediates chromatin modifications that contribute to developmentally regulated transcriptional silencing. Trimethylation of histone H3 on lysine 27, mediated by a PcG protein complex consisting of Eed,
Barbara Panning +6 more
openaire +3 more sources
Developmental Goals as Organizers of Developmental Regulation
1998This chapter introduces the concept of developmental goals. Developmental goals are conceptualized as organizers of developmental regulation. An action-theoretical framework based on recent innovations in motivational action theory (H. Heckhausen 1987a, 1987b, 1987c, 1989; H. Heckhausen & Kuhl 1985) is utilized.
openaire +2 more sources
Developmental regulation of the growth plate
Nature, 2003Vertebrates do not look like jellyfish because the bones of their skeletons are levers that allow movement and protect vital organs. Bones come in an enormous variety of shapes and sizes to accomplish these goals, but, with few exceptions, use one process--endochondral bone formation--to generate the skeleton.
openaire +2 more sources
Developmental regulation of water uptake in wheat
Journal of Plant Physiology, 2007The discovery of aquaporins has provided a new basis for studying and interpreting water relations in plants. However, slow progress has been made in elucidating the functional facets of the aquaporin-mediated water pathway in whole plant systems. While increasing experimental evidence suggests that these proteins are directly involved in mediating ...
RUGGIERO, CELESTINO +2 more
openaire +4 more sources
Developmentally regulated TCR efficiency
Immunology Today, 2000Mature T cells do not respond to those MHC–peptide complexes that they have been positively selected on as thymocytes, indicating that their activation threshold has been altered. Moreover, effector and memory T cells not only respond faster to antigenic stimulation but also with an increased efficiency, which results in costimulation-independent ...
openaire +3 more sources
The Wnt family of developmental regulators
Trends in Genetics, 1992Abstract Since its initial identification in mouse mammary tumors, the proto-oncogene Wnt-1 has been shown to encode a member of a family of putative signalling molecules. Recent work has implicated Wnt-1, and other members of the Wnt gene family, in regulation of a number of basic developmental processes in Drosophila, Xenopus and the mouse.
openaire +2 more sources