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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 58 (1980), S. 249-258 
    ISSN: 1432-1440
    Keywords: Plasma parathyroid hormone ; Renal failure ; Hyperparathyroidism ; Kidney transplantation ; Graft function ; Plasma ; Parathormon ; Terminale Niereninsuffizienz ; Hyperparathyreoidismus ; Nierentransplantation ; Transplantatfunktion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Neben Parametern der Nierenfunktion und des Calciumstoffwechsels wurde Plasma-Parathormon (PTH) bei Patienten nach Nierentransplantation mit einem eindeutig charakterisierten PTH-Radioimmunoassay, dessen Qualitätskriterien belegt sind, gemessen. Bei 72 Transplantatträgern 3 Monate bis 7 Jahre nach der Operation besteht eine enge Beziehung zwischen Transplantatfunktion und Plasma-PTH-Konzentrationen. Patienten mit eindeutig erhöhtem PTH hatten in der Regel eine deutliche Einschränkung der Transplantatfunktion; drei Patienten mit normaler GFR und stark erhöhtem PTH wiesen zumindest vorübergehend die Kriterien eines autonomen Hyperparathyreoidismus auf. Eine nicht selten nachweisbare grenzwertige PTH-Erhöhung bei normaler GFR ist möglicherweise auf die Steroidmedikation zurückzuführen. Bei 100 Patienten, deren Verlauf vor und 10 Tage nach Nierentransplantation untersucht wurde, bestand ebenfalls eine enge Korrelation zwischen PTH und Transplantatfunktion. Die PTH-Konzentrationen sind nicht nur ein empfindlicher Parameter für die Transplantatfunktion, sondern erlauben in verschiedenen Situationen eine prognostische Beurteilung der Transplantatfunktion; dies gilt insbesondere bei primärem Transplantatversagen und bei frühen Abstoßungsreaktionen.
    Notes: Summary Patients after kidney transplantation were investigated for parameters for kidney function and calcium metabolism including a definitively characterized parathyroid hormone (PTH) radioimmunoassay, of which quality criteria have been documented. In 72 transplanted patients 3 months to 7 years after operation a close correlation between graft function and plasma PTH concentrations was found. Patients with clearly elevated PTH revealed definitively decreased graft function. Three patients with normal GFR and clearly elevated PTH showed — at least transiently — all criteria of an autonomous hyperparathyroidism including hypercalcaemia and hypophosphataemia. Borderline PTH elevations associated with normal GFR can be explained by corticosteroid treatment. In 100 patients, which were investigated before and during the first 10 days after transplantation, again a close correlation was documented between the development of PTH concentrations and the function of the transplanted kidney. PTH concentrations are not only a very sensitive parameter of graft function; in various situations plasma PTH concentrations additionally allow an estimate of graft prognosis. This is particularly true in primary graft failure and in early rejection episodes.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Mid-C-regional PTH ; Renal/extrarenal Hyperparathyreodism ; renal Osteodystrophy ; Renal transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The selective determination of mid-C-regional parathyroid hormone (mid-C-PTH) in combination with other laboratory parameters is a reliable tool for diagnosis and treatment of extrarenal (primary) and renal (secondary) hyperparathyroidism. Early stages, which show either high-to-normal serum calcium and elevated mid-C-PTH or increased serum calcium but normal mid-C-PTH, can be distinguished from overt hyperparathyroidism. Alkaline phosphatase (AP) activity and mid-C-regional PTH provide biochemical confirmation of histologically classified renal osteodystrophy. Since the index AP×PTH signifies osseous changes in dialysis patients at an early stage, therapeutic regimens may be altered without additional invasive procedures. After renal transplantation mid-C-PTH normalizes and serum creatinine decreases. Increased mid-C-PTH in patients with normal renal graft function reflects autonomous PTH secretion, which requires careful monitoring to prevent PTH-induced hypercalciuria.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1076
    Keywords: Pyruvate dehydrogenase deficiency ; Hyperammonaemia ; Peritoneal dialysis ; Lipoic acid ; Plasma amino acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 2-day-old girl developed a severe lactic acidosis with a normal lactate/pyruvate ratio and hyperammonaemia. Plasma arginine and citrulline levels were below the limit of detection. In muscle total pyruvate dehydrogenase complex (PDHC) and pyruvate decarboxylase (E1) activities were reduced to a fraction of lower control values. The acute neonatal period was bridged with peritoneal dialysis, dichloroacetate therapy, supplements of arginine and branched chain amino acids, a complete vitamin B complex and lipoic acid. Lactate homeostasis responded to pharmacological supplements of lipoic acid. At age 1 year the child was hypotonic, showed severe developmental retardation, optic atrophy and cranial dysmorphism. She died aged 1 year 8 months with signs of respiratory paralysis but with normal lactate levels under assisted breathing. Pathological findings at autopsy were suggestive of Leigh syndrome, interstitial pneumonia and extensive fatty infiltration of hepatocytes. Regression analysis of data from 187 plasma amino acid determinations from the patient over a period of 1 year 8 months revealed a persistent imbalance involving alanine, glutamic acid, glutamine, proline, citrulline and branched chain amino acids. Aspects of acute and long-term therapy in this patient and some implications of the imbalances in plasma amino acids are discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 147 (1988), S. 496-502 
    ISSN: 1432-1076
    Keywords: DiGeorge syndrome ; Thymus ; Thymic aplasia ; Immunoglobulins ; Cellular immunity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This study describes clinical signs and symptoms in 16 patients with the DiGeorge syndrome (DGS). Diagnosed on the basis of typical facial stigmata, a broad spectrum of severity is seen with respect to congenital heart disease, hypoparathyroidism and immunologic parameters. A simple index of severity is introduced that clearly differentiates complete forms of the syndrome (cDGS) with poor prognosis from partial forms of the syndrome (pDGS). Of 13 pDGS patients, 12 are still living; 8 underwent corrective heart surgery without infectious complications. Moderate to severe mental retardation is seen in all pDGS patients. Due to the lack of thymus function, immunodeficiency is a result of cDGS, whereas immunoregulatory disturbances (hypergammaglobulinaemia, high titres of specific antibody production) prevail in pDGS patients.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Electroanalytical Chemistry 165 (1984), S. 93-104 
    ISSN: 0368-1874
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Electrochimica Acta 26 (1981), S. 799-809 
    ISSN: 0013-4686
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Electrochimica Acta 31 (1986), S. 371-376 
    ISSN: 0013-4686
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods 134 (1976), S. 47-53 
    ISSN: 0029-554X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Electroanalytical Chemistry 165 (1984), S. 93-104 
    ISSN: 0022-0728
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 14 (1984), S. 443-444 
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Renal angiomyolipomas are frequent findings in patients with tuberous sclerosis. They must be localized before a biopsy is done. Radionuclide blood pool scintigraphy is a simple noninvasive procedure for the localization of hemangiomatous tumours. A patient is presented with four renal angiomas shown by this technique.
    Type of Medium: Electronic Resource
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