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  • Creutzfeldt-Jakob disease  (3)
  • Ultrastructure  (3)
  • steroids  (3)
  • (Chicken egg)  (2)
Materialart
Erscheinungszeitraum
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    BBA - Protein Structure 669 (1981), S. 109-112 
    ISSN: 0005-2795
    Schlagwort(e): (Chicken egg) ; Ovomucoid domain ; Thermal unfolding
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    BBA - Protein Structure 667 (1981), S. 242-250 
    ISSN: 0005-2795
    Schlagwort(e): (Chicken egg) ; Circular dichroism ; Ovomucoid domain ; Secondary structure
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Phytochemistry 14 (1975), S. 529-532 
    ISSN: 0031-9422
    Schlagwort(e): Solanaceae ; Solanum xanthocarpum ; carpesterol derivatives ; steroids ; synthesis from carpesterol.
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Phytochemistry 12 (1973), S. 397-401 
    ISSN: 0031-9422
    Schlagwort(e): 4α-methyl-(24R)-ethylcholest-7-en-3β-ol. ; Solanaceae ; Solanum xanthocarpum ; steroidal alkaloids ; steroids ; triterpenoids
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Phytochemistry 14 (1975), S. 529-532 
    ISSN: 0031-9422
    Schlagwort(e): Solanaceae ; Solanum xanthocarpum ; carpesterol derivatives ; steroids ; synthesis from carpesterol
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Acta neuropathologica 53 (1981), S. 161-163 
    ISSN: 1432-0533
    Schlagwort(e): Subacute spongiform encephalopathy ; Creutzfeldt-Jakob disease ; Experimental transmission ; Small rodents ; Transmissible agent
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Further experimental transmission of Creutzfeldt-Jakob disease (CJD) from three patients to mice and rats was carried out successfully. The clinical signs and pathologic features of spongiform encephalopathy transmitted to animals were much the same as in previous experiments, except that distribution of the lesions in the mice differed with each inoculated material taken from the patients. These observations suggest the multiplicity of CJD agents, as in the case of scrapie agents.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Acta neuropathologica 51 (1980), S. 135-140 
    ISSN: 1432-0533
    Schlagwort(e): Experimental spongiform encephalopathy ; Creutzfeldt-Jakob disease ; Spongy state ; Ultrastructural study
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Light and electron microscopic findings of spongy state in four species of small rodents, viz., mice, rats, Mongolian gerbils, and guinea pigs, are described. The spongy state existed in both gray and white matter; its intensity varied in each species, and in the gray matter corresponded to vacuoles within the neuropil. They were of two types; one was the true vacuoles within neurites, and the other was markedly swollen cell processes, some of which were also identified as neurites. In the white matter, the spongy state corresponded mainly to distesion of the myelin sheaths, due to splitting of the major dense line or swelling of the inner loop, and partly to intra-axonal vacuoles. In mice before appearance of clinical symptoms, the vacuolation occurred first in the cerebral white matter 5 weeks after inoculation and in the cerebral cortex at 7 weeks. The occurrence and development of the vacuoles are discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Acta neuropathologica 51 (1980), S. 127-134 
    ISSN: 1432-0533
    Schlagwort(e): Experimental spongiform encephalopathy ; Creutzfeldt-Jakob disease ; Kuru ; Transmission to small rodents
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Experimental transmission of subacute spongiform encephalopathy from three human cases to small rodents is reported. The first case with atypical CJD with spongiform change, kuru plaques, and leukomalacia was transmitted directly to mice, rats, and guinea pigs and indirectly to hamsters and Mongolian gerbils through rats. From two other typical SSE cases the disease was also successfully transmitted; from the second case to mice and rats, and from the third case to guinea pigs. Brain showed the highest infectivity; the spleen, liver, blood, and cerebrospinal fluid of diseased animals were also infective. Intracerebral inoculation was the route for the fastest transmission, followed by intrathecal, intraperitoneal, submucosal, and subcutaneous routes. The incubation periods and clinical features were characteristic in each inoculated species and did not vary within several passages, except for the shortening of incubation period from the first to the second passage. Histologically, a marked spongy state and proliferation of astrocytes were observed in all diseased animals, though the distribution of the lesion was peculiar to each species. The severe lesion in the white matter in mice was similar to that seen in mice inoculated with scrapie and also to that seen in the first case.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Archives of dermatological research 282 (1990), S. 434-441 
    ISSN: 1432-069X
    Schlagwort(e): Hair cycle ; Human hair follicle ; Connective tissue sheath ; Hyaline membrane ; Ultrastructure
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Ultrastructural changes of the connective tissue sheath (CTS), including the hyaline membrane, of human hair follicles during the hair cycle, were studied in normal scalp skin specimens. In early anagen, the CTS was composed of a thin basal lamina and surrounding collagen tissue. The collagen tissue gradually thickened during the development of the hair and hair follicle. In mature anagen hair follicles, the collagen tissue was separated into three layers. The inner collagen layer, just outside the basal lamina, was thin and composed of collagen fibres running longitudinally parallel to the hair axis. The middle collagen layer was very thick with its collagen fibres running transversely against the hair axis and surrounding the inner hair tissue. Many fibroblasts were present among the collagen fibres in the middle layer, whereas the inner layer contained almost none. In the outer collagen layer, collagen fibres ran in various directions parallel to the outer surface of the outer root sheath cells. In late anagen, the basal lamina became very thick. In catagen, the basal lamine and the inner collagen layer became corrugated and showed oedematous change and degeneration. Surrounding fibroblasts showed active production of new collagen fibres, which seemed to fill the spaces left by the retraction of the hair follicle and hyaline membrane. These ultrastructural changes of the CTS show that there may be dynamic metabolic changes of the connective tissue around human hair follicles during the hair cycle.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Archives of dermatological research 280 (1988), S. 308-318 
    ISSN: 1432-069X
    Schlagwort(e): Pili annulati ; Ultrastructure ; DACM staining ; Hair cortex ; Protein metabolism
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Plucked scalp hairs and hair roots of pili annulati were examined to understand their pathogenesis. Stereoscopic examinations of hairs in transmitted light and/or reflected light and light microscopic surveys of the cross-sections of hairs confirmed that the cortical empty spaces appeared to be responsible to the unique dotted shiny appearance of the hairs seen by the unaided eyes under a refracted light. By transmission electron microscope, small vacuoles and dense bodies were observed in the cytoplasm of the differentiating cortical cells; subsequently, with increasing number of tonofilaments, an uneven distribution of free ribosomes occurred and abnormal spaces containing fine granular substances were formed in the cytoplasm of the cortical cells. Occasionally, extremely large cortical trichohyaline granules were found. In the keratinized hair, irregular empty spaces were present in the cortex of the abnormal hair segments. Histochemically, the keratinized cortex of the affected hairs always had more residual SH groups than the controls. Pili annulati may be a disorder of protein metabolism involving a partial dysfunction of cytoplasmic ribosomes, resulting in a lack of cortical keratin formation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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