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  • 1
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Genomics and Human Genetics 1 (2000), S. 139-177 
    ISSN: 1527-8204
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Notes: Abstract Screening of newborn infants for genetic disease began over 35 years ago as a public health measure to prevent mental retardation in phenylketonuria (PKU). It was so successful that tests for several other genetic disorders were added. We review the current status of this screening, including discussions of the genetic disorders often covered and the results of newborn screening for them. We emphasize recent advances. These include expansion of coverage for genetic disorders with the new methodology of tandem mass spectrometry (MS-MS) and the introduction of molecular (DNA) testing to increase the specificity of testing for several disorders, thereby reducing false-positive rates. These and other advances have also produced issues of criteria for screening, missed cases, and appropriate use of stored newborn specimens.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Ganglioneuroblastom ; Sekretorische Diarrhö ; Hypokalämie ; Vasoaktives intestinales Polypeptid ; WDHA-Syndrom ; Key words Ganglioneuroblastoma ; Secretory diarrhea ; Hypokalemia ; Vasoactive intestinal polypeptide ; WDHA-syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A 4-year old girl presented with an 18-month-history of weariness, high fluid intake, bone pain and growth retardation. A short febrile episode resulted in acute decompensation under the clinical picture of a WDHA-Syndrome (Watery diarrhea, hypokaliemia, a- or hypochlorhydria). As the causative agent a VIP (Vasoactive intestinal polypeptide) – producing ganglioneuroblastoma was discovered in the left adrenal cortex. Symptoms ceased immediately after surgical resection of the tumour. Discussion: VIP-secreting tumours in childhood are mostly observed together with neural crest tumours. Mediated by cAMP, VIP leads to the secretion of fluid and electrolytes into the intestine which results in secretory diarrhea with hypokalemic metabolic acidosis. Facultative symptoms consist of hypo- or achlorhydria, bone resorption, flush and hyperglycemia. Surgical resection of the tumour is the therapy of choice.
    Notes: Zusammenfassung Wir berichten von einer 4jährigen Patientin mit einer 18 Monate währenden Anamnese von Müdigkeit, Polydipsie, Knochenschmerzen und stagnierendem Längenwachstum. Ein fieberhafter Infekt führte zur akuten Dekompensation unter dem klinischen Bild eines WDHA-Syndroms (wäßrige Diarrhö, Hypokaliämie, A- oder Hypochlorhydrie). Als Ursache konnte ein VIP (vasoaktives intestinales Polypeptid) sezernierendes Ganglioneuroblastom der linken Nebenniere diagnostiziert werden. Die Symptomatik normalisierte sich innerhalb 1 Tags nach operativer Entfernung des Tumors. Diskussion: VIP-sezernierende Tumoren betreffen im Kindesalter fast ausschließlich das sympathische Nervensystem. Über einen cAMP-vermittelten Mechanismus führt das von diesen Tumoren exzessiv sezernierte VIP zu einem WDHA-Syndrom, das charakterisiert ist durch massive intestinale Flüssigkeits- und Elektrolytverluste unter dem Bild einer sekretorischen Diarrhö mit hypokalämischer metabolischer Azidose. Fakultativ werden vermehrte Knochenresorption, Flush und Hyperglykämie beobachtet. Die Therapie besteht primär in einer chirurgischen Tumorexstirpation.
    Type of Medium: Electronic Resource
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