Digoxin-Like Immunoreactive Substance in Urine of Patients with Mucocutaneous Lymph Node Syndrome (MCLS)

Levels of digoxin-like immunoreactive substance (DLIS) and dehydroepian drosterone sulfate (DHEA) in urine from patients with mucocutaneous lymph node syndrome (MCLS) were measured by radioimmunoassay. Because DLIS of stored samples was often below the level of detection by conventional immu noassay...

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Bibliographic Details
Published in:Angiology 1992-10, Vol.43 (10), p.856-865
Main Authors: Tamura, Hiroshi, Shimoyama, Sadatoshi, Sunaga, Yasuo, Sakaguchi, Masao, Kuroume, Takayoshi
Format: Article
Language:English
Subjects:
Biological and medical sciences
Blood Proteins - biosynthesis
Blood Proteins - urine
Cardenolides
Child
Child, Preschool
Chromatography, High Pressure Liquid
Creatinine - urine
Dehydroepiandrosterone - analogs & derivatives
Dehydroepiandrosterone - urine
Dehydroepiandrosterone Sulfate
Dermatology
Digoxin
Endothelium, Vascular - metabolism
Humans
Medical sciences
Mucocutaneous Lymph Node Syndrome - urine
Radioimmunoassay
Saponins
Skin involvement in other diseases. Miscellaneous. General aspects
Sodium-Potassium-Exchanging ATPase - antagonists & inhibitors
Umbilical Veins
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Summary:Levels of digoxin-like immunoreactive substance (DLIS) and dehydroepian drosterone sulfate (DHEA) in urine from patients with mucocutaneous lymph node syndrome (MCLS) were measured by radioimmunoassay. Because DLIS of stored samples was often below the level of detection by conventional immu noassay, the authors used 80% ammonium sulfate and extraction with phos phate buffer and then 80% hot ethanol. To study the origin of raised levels of DLIS in urine, the synthesis of DLIS by cultured human umbilical vein endothe lial cells (HUVEC) was tested in vitro. The correlation between DLIS and DHEA levels was not significant. Mean levels of urinary DLIS corrected for creatinine in the patients with MCLS were significantly higher than in both normal and diseased controls. The culture medium of HUVEC was found to contain DLIS activity. These results show that MCLS should be added to the clinical states associated with an increased urinary concentration of DLIS and that the endothelial cells are one source of DLIS in man.
ISSN:0003-3197
1940-1574
DOI:10.1177/000331979204301009