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  • 1
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    Scoliosis in chickens: responsiveness of severity and incidence to dietary copper (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1984-07-27
    Beschreibung: The severity and incidence of spinal lesions were manipulated in a line of chickens susceptible to scoliosis by varying their dietary intake of copper. A decrease in expression of the lesion was related to increased intake of copper. The change in expression, however, appeared to be related only indirectly to the defects in collagen cross-linking, maturation, and deposition known to be associated with dietary copper deficiency. Thus, a dietary constituent in the range of normal intakes may act as an environmental factor in the expression of scoliosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Opsahl, W -- Abbott, U -- Kenney, C -- Rucker, R -- AM 25358/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1984 Jul 27;225(4660):440-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6740317" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Chickens ; Collagen/physiology ; Copper/deficiency/*physiology ; *Diet ; Female ; Humans ; Male ; Scoliosis/*etiology ; Sex Factors
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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    AKTUELLE ARTIKEL
  • 2
    Digitale Medien
    Digitale Medien
    Collagen crosslinking and cartilage glycosaminoglycan composition in normal and scoliotic chickens
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/General Subjects 967 (1988), S. 275-283 
    Details
    ISSN: 0304-4165
    Schlagwort(e): (Chicken) ; Cartilage proteoglycan ; Collagen crosslinking ; Glycosaminoglycan ; Scoliosis
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin , Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0304-4165(88)90020-7
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Collagen, proteoglycan and hyaluronidase activity in cultures from normal and scoliotic chicken fibroblasts
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/General Subjects 1034 (1990), S. 318-325 
    Details
    ISSN: 0304-4165
    Schlagwort(e): Collagen ; Fibroblast ; Hyaluronidase ; Proteoglycan ; Scoliosis
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin , Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0304-4165(90)90058-5
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
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    Tissue densities in developing avian embryos (1984)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: The density changes in the components of the incubated egg, the embryo, and the embryo's body parts were measured in the course of 21 days of incubation. In the first two-thirds of the incubation period there is a sequence of increasing density among egg contents: amniotic fluid, embryo, yolk, and albumin. As a result, the embryo is located at the bottom of the amniotic fluid, but at the top of the albumin. This position provides the embryo with mechanical protection and a proximity to the egg's air cell. The observed density changes and the asymmetry of these changes among various body parts of the embryo suggest a functional relationship. The density distributions among the body parts are particularly important in gravitational investigations of embryogenesis since they will produce forces tending to dislocate parts of the embryo.
    Schlagwort(e): LIFE SCIENCES (GENERAL)
    Materialart: Physiologist, Supplement (ISSN 0031-9376); 27; S-141
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 5
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    Embryonic development during chronic acceleration (1982)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-06-28
    Beschreibung: Experiments carried out on chicken eggs indicate that the embryo is affected during very early development, especially over the first four days, and during hatching. In the first four days, the brain develops as well as the anlage for all other organs. In addition, the heart commences to function and the extraembryonic membranes that compartmentalize the egg contents form. The latter require an appreciable extension and folding of tissue which may be disrupted by the mechanical load. Observations of embryonic abnormalities that occur during chronic acceleration suggest an inhibition of development of the axial skeleton, which is rarely seen otherwise, a general retardation of embryonic growth, and circulatory problems. The final stages of development (after 18 days) involve the uptake of fluids, the transition to aerial respiration, and the reorientation of the embryo into a normal hatching position. At 4 G mortality is very high during this period, with a majority of embryos failing to reorient into the normal hatching position.
    Schlagwort(e): LIFE SCIENCES (GENERAL)
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 6
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    Avian embryonic development in hyperdynamic environments (1983)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Embryos which developed for 24 hours in the oviduct of hens maintained at 2 G and which were subsequently incubated at Earth gravity had a 14% reduction in hatchability. Increased mortality during the first 4 days, and an increase in embryonic abnormalities were of the types usually found during the first mortality peak (2-3 days). Embryos in eggs that were produced at Earth gravity and continued their development on the centrifuge at fields of 2 G or less did not appear to be greatly affected by the treatment. At 4 G, 91% of the embryos died, mostly on the first and second days of incubation. Abnormalities prominent in the centrifuged eggs include: (a) a failure of the primitive streak to develop; (b) interference with the development of the axial skeleton; (c) multiple hemorrhages, mostly petechial which is consistent with capillary fragility; and (d) retardation of embryo growth, possibly caused by an interference with gaseous diffusion, the result of an acceleration-induced increase in gas density in the centrifuging incubator.
    Schlagwort(e): LIFE SCIENCES (GENERAL)
    Materialart: NASA-CR-173339 , NAS 1.26:173339
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
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