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  • 1
    ISSN: 1432-1440
    Keywords: Hypomagnesemia ; Hypocalcemia ; Parathyroid hormone ; Cyclic adenosine monophosphate ; Hypoparathyroidism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In four patients with severe hypomagnesemia, hypocalcemia, and functional hypoparathyroidism (three patients with shortened bowel, one with alcoholism), sequential measurements of parameters of calcium metabolism were performed before and during intravenous administration of magnesium. Parathyroid hormone was unmeasurably or inadequately low in all patients before magnesium injection, but rapidly rose to elevated values thereafter. Even without calcium supplements, serum calcium rose to normal levels within 2–5 days, although 1,25(OH)2-Vitamin D levels did not rise significantly. In the patient with alcoholism, hypophosphatemia developed during the first days after admission; the rise of serum calcium preceded the elevation of cyclic adenosine monophosphate in urine. A transient rise of urinary calcium was observed in two patients after initiation of magnesium therapy, with a subsequent fall to subnormal levels in spite of normal serum calcium concentrations. The findings were considered to be due to partial parathyroid hormone resistance during the phase of magnesium replenishment.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 251 (1965), S. 130-131 
    ISSN: 1432-1912
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 245 (1962), S. 84-84 
    ISSN: 1432-1912
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 4 (1979), S. 419-421 
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Rapid and preferential uptake of 47calcium and 87mStrontium by the multinodular calcareous masses was seen in a patient with tumoral calcinosis. Using 87mStrontium, scintigraphic imaging of the tumors was achieved, while the skeleton was barely visible. More intense accumulation of 87mSr. in one tumor suggested a higher rate of calcium depostion. This was in agreement with the observation that this tumor showed less tendency to decrease in size during calcium and phosphorus deprivation therapy. Quantitative measurements of the uptake of bone seeking tracers by the tumors may be of value in estimating calcium turnonover in the calcified masses.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Clinical and experimental medicine 143 (1967), S. 85-96 
    ISSN: 1591-9528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0878
    Keywords: CRF ; Vasopressin ; Adrenalectomy ; Rat ; Histology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In female Wistar rats the influence of adrenalectomy and NaCl administration on the amount of “classical” neurosecretory material (cNSM) in the supraoptico-hypophysial system and on vasopressin-like substance-containing granules (vlG) in the outer layer of the median eminence has been studied. In conjunction with appropriate sodium replacement, adrenalectomy induces an increase in the amount of vlG but does not alter the amount of cNSM. Administration of hypertonic saline diminishes cNSM but has no or only little influence on the amount of vlG. From the findings it is concluded that cNSM and vlG, in spite of their identical histochemical and immunohistochemical properties, have different functions. The functional significance of the vlG is discussed.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 307 (1961), S. 145-156 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: X-ray investigations have shown that Ca2Sn and Ca2Pb are isotype with Ca2Si and Ca2Ge (PbCl2-structure, C - 23-type; lattice constants, space group, and point parameters see „Inhaltsübersicht“).The compounds Ca2Si, Ca2Ge, Ca2Sn and Ca2Pb are compared with the corresponding Mg-compounds. Both groups have similar bond types; from the observed bond lengths a covalent character of the bonds is deduced.
    Notes: Röntgenographische Untersuchungen an Einkristallen der Verbindungen Ca2Sn und Ca2Pb ergaben, daß diese isotyp mit Ca2Si und Ca2Ge im Strukturtyp des PbCl2 (C-23 Typ) Kristallisieren. Die Gitterkonstanten betragen:Ca2Sn: a = 9,562 ± 0,004; b = 7,975 ± 0,004; c = 5,044 ± 0,003 Å. Ca2Pb: a = 9,647 ± 0,004; b = 8,072 ± 0,004; c = 5,100 ± 0,003 Å.Die wahrscheinliche Raumgruppe ist D2h16-Pbnm; die Atome besetzen die Punktlage \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {4({\rm c)} \pm {\rm (x,y,}\,{{\rm 1} \mathord{\left/{\vphantom {{\rm 1} {{\rm 4),}}}} \right. \kern-\nulldelimiterspace} {{\rm 4),}}}} & {({1 \mathord{\left/{\vphantom {1 2}} \right.\kern-\nulldelimiterspace} 2} - {\rm x,}\,{{\rm 1} \mathord{\left/{\vphantom {{\rm 1} 2}} \right.\kern-\nulldelimiterspace} 2} + {\rm y,}\,{{\rm 1} \mathord{\left/{\vphantom {{\rm 1} {\rm 4}}} \right.\kern-\nulldelimiterspace}{\rm 4}}).}\\\end{array} $$\end{document} Die gefundenen Parameter sind außer den y-Werten der Schwermetallatome bei beiden Verbindungen gleich und betragen: xSn = xPb = 0,111; xCa1 = 0,067; xCa2 = 0,683. ySn = 0,253, yPb = 0,250; yCa1 = 0,655; yCa2 = 0,513.Die Verbindungen Ca2Si, Ca2Ge, Ca2Sn und Ca2Pb werden mit den entsprechenden Magnesiumverbindungen verglichen. Beide Verbindungsgruppen haben ähnlichen Bindungstyp; Abstandsbetrachtungen zeigen, daß es sich um kovalente Bindung handelt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The crystal structures of the intermetallic compounds Ca33Ge, Ca7Ge, Ca3Pb and Ca5Pb3 are described. For lattice constants, space groups and atomic positions see „Inhaltsübersicht“.
    Notes: Röntgenographische Untersuchungen an Einkristallen der Verbindungen Ca33Ge, Ca7Ge, Ca3Pb, Ca5Pb3 führten zu folgenden Strukturvorschlägen: Innerhalb der Fehler der experimentellen Ergebnisse können außerdem die folgenden beiden statistischen Besetzungen diskutiert werden: Die Struktur ist sehr ähnlich dem D88-Typ. Es wurde nochmals bestätigt. daß die beiden Verbindungen Mg5Hg3 und Mn5Si3 im D88-Typ kristallisieren.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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