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  • 1
    Digitale Medien
    Digitale Medien
    Subcellular distribution and binding of heavy metals in the untreated liver of the squid; comparison with data from the livers of cadmium and silver-exposed rats (1983)
    Springer
    Cellular and molecular life sciences 39 (1983), S. 746-748 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary In natural squid liver, about 30% of the total Cd present was found in the cytosolic fraction. A large portion of this Cd was bound to high molecular weight species (mol. wt〉70,000). In contrast to Cd, about 60% of the total Ag occurred in the cytosolic fraction; Ag was bound mainly to low molecular weight species (mol. wt〈20,000).
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01990305
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  • 2
    Digitale Medien
    Digitale Medien
    Pleomorphic intra-neuronal polyglucosan bodies mainly restricted to the pallidium (1983)
    Springer
    Acta neuropathologica 62 (1983), S. 159-163 
    Details
    ISSN: 1432-0533
    Schlagwort(e): Pleomorphic polyglucosan body ; Bielschowsky body ; Lafora body ; Corpora amylacea
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary A rare case with pleomorphic intra-neuronal polyglucosan bodies is reported. A 45-year-old man died of gastric carcinoma with extensive visceral involvement. The autopsy showed numerous intra-neural pleomorphic PAs-positive deposits reminiscent of Bielschowsky bodies in the lateral segments of the pallidum, substantia nigra, and brain stem on both sides. Their histochemical properties were consistent with polyglucosan. The bodies were ultrastructurally composed of filamentous structures and seen in perikarya, axons, and dendrites. Occasionally, spotty electron-dense material was seen in the center of the bodies. The filaments were selectively stained with thiocarbohydrazide method after Thiéry, indicating their chief component as glucose polymers. The bodies are compared with Bielschowsky bodies, Lafora bodies, corpora amylacea, and related bodies, and their nature and significance are briefly discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00684936
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  • 3
    Digitale Medien
    Digitale Medien
    Cytochemical changes in lactate dehydrogenase isoenzymes in human brain tumours (1984)
    Springer
    Acta neurochirurgica 71 (1984), S. 243-253 
    Details
    ISSN: 0942-0940
    Schlagwort(e): Brain tumours ; LDH isoenzyme ; cytochemistry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The lactate dehydrogenase (LDH) isoenzyme patterns in benign and malignant brain tumours were determined by means of electrophoresis of the cell extracts and selective cytochemical stain of the smears. The LDH isoenzyme distribution of the cell extracts showed a pronounced cathodal shift in the malignant gliomas and metastatic carcinomas. Normal brain tissues and histologically benign gliomas, however, showed an anodal pattern with a dominance of the H-type LDH. Schwannomas and meningiomas had a midzone isoenzyme pattern with a dominant LDH3 fraction. Pituitary adenomas usually showed the LDH pattern similar to that of the normal cerebrum. The LDH M fraction could be cytochemically verified using an inhibitory effect by 2.6 M urea in staining. Astrocytomas grades 3–4 and metastatic carcinomas were characterized by loss or marked reduction of stainability by urea treatment, while astrocytomas grades 1–2 and oligodendrogliomas were resistant to urea inhibition.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01401319
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  • 4
    Digitale Medien
    Digitale Medien
    Injection electroluminescence from CdTe p-n junctions prepared by LPE (1981)
    Springer
    Applied physics 26 (1981), S. 151-156 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 78.60.Fi ; 73.40.Lq ; 81.10.Dn
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract CdTep-n junction diodes were prepared by LPE using CdCl2 as a solvent. Excess cadmium was added to the CdCl2-CdTe solution. Capacitance-voltage characteristics show that the diode structure is ofp-i-n type. Injection electroluminescence spectra reveal that radiative transitions occur mainly in thep-type region; relevant recombination centers are discussed in connection with those in a previous paper on the photoluminescence of CdTe:P crystals. Temperature dependences of the electroluminescence spectra were explained taking into account a change in sites where electrons radiatively recombine.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00614749
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  • 5
    Digitale Medien
    Digitale Medien
    Meteoritic 138 Ce/ 142 Ce ratio and its evolution (1984)
    [s.l.] : Nature Publishing Group
    Nature 307 (1984), S. 251-252 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The experimental procedures used are almost identical to those of Tanaka and Masuda2. About 0.7 to 3 g of each sample was decomposed. Rare-earth elements (REE) were separated from the major elements by an AG50W-X8 resin column in HC1 media, while Ce and Nd were separated using an AG50W-X8 resin ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/307251a0
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  • 6
    Digitale Medien
    Digitale Medien
    The La–Ce geochronometer: a new dating method (1982)
    [s.l.] : Nature Publishing Group
    Nature 300 (1982), S. 515-518 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Radioactivity of 138La has been predicted, because of Mat-tauch's rule concerning the stability of isobaric atomic nuclei CffBa-^La-^fCe) with contiguous atomic numbers and the half-life has been measured1'11'25. 138La decays by /3 emission to an excited level of 138Ce which emits 789 keV y ray and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/300515a0
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  • 7
    Digitale Medien
    Digitale Medien
    Ultrastructural observation on a colloid cyst of the third ventricle (1984)
    Springer
    Acta neuropathologica 65 (1984), S. 41-45 
    Details
    ISSN: 1432-0533
    Schlagwort(e): Colloid cyst ; Third ventricle ; Ultrastructure ; Pathogenesis ; Rathke's cyst
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The case involves a colloid cyst of the third ventricle in a 20-year-old man. The lining epithelia of the cyst were composed of two different types of epithelial cells; stratified squamous cells and mucincontaining columnar cells. The presence of both squamous and glandular cells in the cyst wall supports the contention that the colloid cyst in the present case derived from an non-neuroepithelial source. The clinico-pathology of this cystic tumor is compared here with other epithelial cysts of the central nervous system (CNS), especially Rathke's cyst.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00689826
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  • 8
    Digitale Medien
    Digitale Medien
    Hyperphenylalaninemia due to impaired dihydrobiopterin biosynthesis (1981)
    Springer
    European journal of pediatrics 136 (1981), S. 275-280 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Atypical PKU ; Deficiency of dihydrobiopterin ; Neurotransmitter treatment
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A fourteen month-old boy with atypical phenylketonuria was treated with 5-hydroxytryptophan, L-dopa and peripheral aromatic amino acid decarboxylase inhibitor (Ro 4-4602:benserazide). Despite the good control of plasma phenylalanine on a low phenylalanine diet, he had shown no improvement in his development but progressive neurological symptoms, such asiirritability, convulsions and decrease voluntary movement. After beginning neurotransmitter therapy, his irritability disappeared promptly and the other symptoms diminished. He gradually reached his developmental milestones. At two and a half years of age, he had recovered sufficiently to be able to walk freely on treatment with 13 mg/kg/day of 5-hydroxytryptophan, 11 mg/kg/day of L-dopa and 2.7 mg/kg/day of benserazide in combination with slight restriction of phenylalanine intake (100 mg/kg/day). Levels of serotonin and 5-hydroxyindoleacetic acid were low in the patient's CSF. His urinary biopterin (Crithidia factor) excretion was low. An increase in serum biopterin following L-phenylalanine loading was not found. Dihydropteridine reductase activity in his skin fibroblasts was normal. He excreated large amounts of erythro- and threo-neopterins (but only a trace of biopterin) in his urine. After loading with phenylalanine the urinary excretion of neopterins was even more enhanced, but biopterin remained at low levels. These findings indicated that the patient has a dihydrobiopterin synthetase deficiency.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00442994
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  • 9
    Digitale Medien
    Digitale Medien
    A case of Menkes syndrome with cataracts (1982)
    Springer
    European journal of pediatrics 138 (1982), S. 357-358 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Menkes' syndrome ; Cataract
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A 2-year and 9-month-old boy with Menkes syndrome is reported. In addition to the typical features of this syndrome our patient had bilateral cataracts. The relation between abnormal copper metabolism and cataract is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00442519
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  • 10
    Digitale Medien
    Digitale Medien
    Synthesis of M protein of influenza B virus is specifically inhibited at a non-permissive temperature (1982)
    Springer
    Archives of virology 73 (1982), S. 199-204 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Growth of influenza B viruses is restricted at high temperatures. Within B/Yamagata-infected MDCK cells, the synthesis of the M protein was selectively inhibited at 39° C, accompanied by a reduced production of virus particles.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01314728
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