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  • 1
    ISSN: 1432-0584
    Keywords: Key words Acute leukemia ; Human growth hormone ; Human growth hormone receptor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The potential influence of the human growth hormone (hGH) on the behavior of acute leukemias is a matter of controversy. We investigated primary childhood and adult leukemias (n=44) and leukemic cell lines (n=13) for the expression of the hGH receptor (hGHR) by immunohistochemistry and flow cytometry. All leukemias expressed the hGHR in the cytoplasm; expression on the surface was undetectable in some of the leukemias. In leukemic cell lines, hGHR expression on the surface was demonstrated in a dose-dependent manner after incubation with rhGH. Physiologic concentrations of hGH were more efficient than higher doses in increasing hGHR surface expression. A proliferative response to hGH was accomplished in cell lines REH, Molt4, and K562. However, only one of 19 primary leukemias (ALL, n=12; AML, n=7) showed increased cell counts after the addition of 50–800 ng/ml recombinant hGH (rhGH). These cells were of an immature T-cell phenotype. We thus conclude that acute leukemias can be stimulated by hGH to up-regulate its receptor, but that most primary leukemias may require additional signals for the induction of proliferation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of chemical & engineering data 7 (1962), S. 140-142 
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 25 (1992), S. 3633-3637 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 7650-7653 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 27 (1962), S. 2961-2962 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Dysphagia 11 (1996), S. 72-74 
    ISSN: 1432-0460
    Keywords: Thermal injury (burn) ; Esophagus ; Deglutition ; Deglutition disorders
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Acute thermal injury to the esophagus has not been reported previously in the radiographic literature. We present a case of a young adult who developed an intramura “blister” that ultimately communicated with the esophageal lumen. A double-contrast esophagogram outlined the resulting mucosal flap. A brief review of other injuries to the esophagus is included.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 98 (1932), S. 147-198 
    ISSN: 1432-0568
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 60 (1982), S. 823-828 
    ISSN: 1432-1440
    Keywords: Diabetes mellitus ; Plasma norepinephrine ; Blood pressure regulation ; Diabetes mellitus ; Plasmanoradrenalin ; Blutdruckregulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Das Verhalten von Blutdruck, Plus und Plasmanoradrenalin während verschiedener Stimulationsmanöver sympathisch nervöser Aktivität sowie das vaskuläre Reaktionsvermögen auf infundiertes Noradrenalin (50, 100 und 200 ng/kg−1/min−1,t=15 min) wurde bei 17 Diabetikern und 6 gesunden Probanden untersucht. Unterschieden wurden Diabetiker 1) ohne Zeichen autonomer Dysfunktion und ohne periphere Neuropathie (n=6), 2) ohne Zeichen autonomer Dysfunktion jedoch mit schwerer peripherer Neuropathie (n=6) und 3) mit autonomer Dysfunktion, mit (n=3) und ohne (n=2) peripherer Neuropathie. Während eines „Cold pressor tests“ (2 min), mechanischer Hautirritation (10 min) und Orthostase (10 min) zeigten Diabetiker ohne klinische Zeichen autonomer Dysfunktion ein den gesunden Kontrollpersonen vergleichbares Verhalten von Blutdruck, Plus und Plasmanoradrenalin, während Diabetiker mit autonomer Dysfunktion unabhängig vom Bestehen einer peripheren Neuropathie während der Orthostase, nicht jedoch während des „Cold pressor tests“ und mechanischer Hautirritation eine deutlich herabgesetzte Noradrenalinfreisetzung (P〈0.05) aufwiesen. Normalpersonen und Diabetiker ohne autonome Dysfunktion unterschieden sich bezüglich ihres Blutdruckverhaltens während Noradrenalininfusion nicht, während Diabetiker mit autonomer Dysfunktion auf die Verabreichung von exogenem Noradrenalin (200 ng/kg/min) mit einem gegenüber Normalpersonen verstärkten (P〈0.05) Blutdruckanstieg reagierten. Störungen der Noradrenalinfreisetzung und der adrenergen Blutdruckregulation scheinen somit, unabhängig vom Bestehen einer peripheren Neuropathie, nur bei Diabetikern mit klinischen Zeichen autonomer Dysfunktion aufzutreten. Der Nachweis derartiger Störungen gelingt jedoch nur bei Anwendung von Stimuli größerer Intensität wie Orthostase oder Infusion einer hohen Noradrenalindosis.
    Notes: Summary Changes in blood pressure (BP) and plasma norepinephrine (NE) following various stimuli of the sympathetic nervous system were studied in six healthy subjects and in 17 diabetic patients. The latter were subdivided in three groups: (1) six patients with neither peripheral neuropathy nor autonomic dysregulation, (2) six patients with severe peripheral neuropathy without autonomic dysregulation, and (3) five patients with autonomic dysregulation, three of whom suffered also from peripheral neuropathy. The following procedures were performed: (1) cold pressor test (2 min), (2) mechanical irritation of the skin by suction (0.75 kg/cm2, 10 min), (3) orthostasis (10 min), and (4) i.v. infusion of NE (50, 100, 200 ng kg−1 min−1 for 15 min each). Both the stimulated endogenous plasma NE levels and BP response to exogenous NE were the same in normal subjects, in diabetic controls and in diabetics with peripheral neuropathy without autonomic dysregulation. In contrast, diabetics with postural hypotension showed a less pronounced release of NE to standing (P〈0.05), but not to cold pressor test and mechanical skin irritation. Furthermore, they showed increased vasoreactivity to the highest dose (P〈0.05), but not to the lower doses of exogenous NE. Thus NE release and adrenergic BP regulation seem to be altered only in diabetics with clinical signs of autonomic dysregulation. These alterations can only be evaluated when patients are exposed to stimuli of higher intensity, such as orthostasis or infusion of a high NE dose.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1440
    Keywords: Glycosylated hemoglobin ; Hemolytic anemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Reduced levels of glycosylated hemoglobins (GHb) have been found to be closely related to red cell survival. We therefore studied the relation of this parameter to the clinical applicability in patients with hemolytic disease (n=20). During a 5-week period we repeatedly measured severity of anemia, i.e., hemoglobin (Hb), packed red cell volume (VPRC), and red blood cell count (RBC), as well as reticulocytosis and parameters of red cell destruction such as serum concentration of lactic dehydrogenase (LDH) and bilirubin together with GHb. There was a weak correlation between simultaneously measured GHb and RBC (r=0.5,P=0.02), but none was demonstrable between GHb and Hb, VPRC, reticulocyte counts, LDH, or bilirubin. A much closer correlation, however, was found between actual GHb levels and RBC determined 3–5 weeks previously (r=0.72,P=0.001), as well as Hb (r=0.56,P=0.015), VPRC (r=0.57,P=0.013), reticulocyte counts (r=−0.63,P=0.006), LDH (r=−0.53,P=0.02), and serum bilirubin concentrations (r=−0.55,P=0.016). GHb was also significantly decreased in patients with consistently low values of reticulocytes when red cell destruction was demonstrable. These result show that GHb is a measure of red cell destruction and restitution, and thus may be useful for long-term monitoring of patients with hemolytic disease.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1440
    Keywords: Cimetidine ; Pirenzepine ; Parathyroid hormone ; Calcitonin ; Cimetidin ; Pirenzepin ; Parathormon-Calcitonin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In letzter Zeit wurde über den Langzeiteffekt von Cimetidin, eines Histamin2-Rezeptorantagonisten, erhöhte PTH Serumkonzentrationen beim sekundären1 und primären Hyperparathyroidismus2 zu senken, berichtet. Dabei wurde auch eine Verbesserung des klinischen Bildes beobachtet. Wir haben die Wirkung von Cimetidin und Pirenzepin auf den Plasmaspiegel von PTH und CT bei Patienten mit sekundären Hyperparathyroidismus in einem Kurzzeitversuch geprüft. Eine signifikante Senkung der PTH Serumkonzentration wurde mit Cimetidin nach 30 min für die Dauer von 30 min gesehen. Mit Pirenzepin zeigte sich erst 60 min nach der Infusion ein 60 min lange anhaltender signifikanter Abfall der PTH Serumkonzentration. Der Calcitonin Serumspiegel war nur mit Cimetidin signifikant senkbar.
    Notes: Summary Long-term administration of cimetidine, a histamine2 receptor antagonist, has been reported to normalize elevated parathyroid hormone (PTH) concentrations in patients with secondary [1] and primary hyperparathyroidism [2] and even to improve the clinical symptoms. We have compared the effect of cimetidine and pirenzepine on PTH and calcitonin (CT) plasma levels in a short-term trial on patients with secondary hyperparathyroidism. After cimetidine a significant effect on PTH was seen within 30 min lasting 30 min and after pirenzepine, within 60 min and lasting 60 min. The effect on CT was only significant after cimetidine.
    Type of Medium: Electronic Resource
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