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  • 1985-1989  (2)
  • Analytical Chemistry and Spectroscopy  (1)
  • Hypocalcaemia  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Somatosensory evoked potentials in patients with hypocalcaemia after parathyroidectomy (1988)
    Springer
    Journal of neurology 235 (1988), S. 136-139 
    Details
    ISSN: 1432-1459
    Keywords: Parathyroidectomy ; Hypoparathyroidism ; Hypocalcaemia ; Somatosensory evoked potentials ; Recovery functions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of hypocalcaemia on somatosensory evoked potentials (SEPs) were studied in five patients after parathyroidectomy. Despite normal latencies the mean value of amplitudes of the SEPs in hypocalcaemic patients was greater than that in normocalcaemic subjects. Recovery functions of the SEPs showed a significant decrease in hypocalcaemic patients at interstimulus intervals of about 10 ms compared with those in normocalcaemic patients and in normal volunteers. Recovery functions appear to be a valid indicator of synaptic efficacy, especialy for evaluation of the reduction in conduction efficacy of the central nervous system in hypocalcaemia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00314302
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structural analysis of protein variants by mass spectrometry: Characterization of haemoglobin providence using a grand-scale mass spectrometer (1989)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 18 (1989), S. 563-565 
    Details
    ISSN: 0887-6134
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A grand-scale mass spectrometer with high mass resolution and high transmission was employed for the analysis of haemoglobin variant. Two variants were isolated from a haemolysate by chromatography. Secondary ion mass spectrometry of complex peptide mixtures derived from these variants precisely determined the molecular weight of abnormal peptides. The molecular weight, 2857.4 and 2858.4, indicated the amino acid substitutions of asparagine and aspartic acid, respectively, for lysine at position 82 of β globin chain. The mutations had been reported in haemoglobin Providence.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200180809
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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