Search Results - (Author, Cooperation:D. J. Garry)
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1A. Sharma ; V. Sebastiano ; C. T. Scott ; D. Magnus ; N. Koyano-Nakagawa ; D. J. Garry ; O. N. Witte ; H. Nakauchi ; J. C. Wu ; I. L. Weissman ; S. M. Wu
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-11-07Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; *Bioethical Issues ; Blastocyst ; *Chimera ; Financial Management/ethics ; Humans ; Mice ; National Institutes of Health (U.S.)/economics/ethics ; Pluripotent Stem Cells/*transplantation ; Stem Cell Research/economics/*ethics ; United StatesPublished by: -
2Staff View
ISSN: 1432-0428Keywords: GABA ; insulin ; immunohistochemistry ; islet of Langerhans ; electron microscopy ; Lowicryl K4MSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary The purpose of this study was to determine the ultrastructural localization of gamma amino butyric acid (GABA) within the B cell of isolated rat islets, particularly with respect to the B cell secretion granules. GABA immunoreactivity was localized ultrastructurally, with colloidal gold, in the B cells and absent in the A cells and D cells. Quantitative analysis of the colloidal gold particle distribution in the B cell revealed 29.5±5.2 gold particles/μm2 in the nuclei, 29.3±6.9 gold particles/μm2 in the mitochondria and 4.9±1.0gold particles/μrn2 in the secretion granules. Particle density in the remainder of the cytoplasm was 41.9±4.1 particles/μm2. The paucity of gamma amino butyric acid in the B cell secretion granules differs from observations on gamma amino butyric acidergic neurons, where there is an accumulation of gamma amino butyric acid within the neurosecretory vesicles. These findings indicate that if gamma amino butyric acid is released from the islet, then it is by a nongranular mechanism. In addition, the results are compatible with the hypotheses that gamma amino butyric acid within the B cell functions in the regulation of insulin biosynthesis, and/or functions as an alternative energy source for the B cell through the gamma amino butyric acid shunt.Type of Medium: Electronic ResourceURL: -
3Staff View
ISSN: 1420-9071Keywords: Key words. Myoglobin; oxygen transport; heart; skeletal muscle; transgenic mice.Source: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Abstract. Hemoproteins are widely distributed among prokaryotes, unicellular eukaryotes, plants and animals . Myoglobin, a cytoplasmic hemoprotein that is restricted to cardiomyocytes and oxidative skeletal myofibers in vertebrates, has been proposed to facilitate oxygen transport to the mitochondria . This cytoplasmic hemoprotein was the first protein to be subjected to definitive structural analysis and has been a subject of long-standing and ongoing interest to biologists . Recently, we utilized gene disruption technology to generate mice that are viable and fertile despite a complete absence of myoglobin . This unexpected result led us to reexamine existing paradigms regarding the function of myoglobin in striated muscle.Type of Medium: Electronic ResourceURL: