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Background

In Wilson disease, copper is not sufficiently excreted into bile due to the absence or malfunction of the Wilson protein copper ATPase in the excretory pathway of hepatocytes. Copper is found in sweat. It is unknown if the Wilson protein plays a role in copper excretion into sweat. It is the aim of this study to investigate Wilson protein expression in sweat glands and analysing its effects on copper excretion into sweat in controls and patients with Wilson disease.

Methods

Immunofluorescent analysis of the Wilson protein in skin samples from normal rat, LEC rat and human skin biopsies were performed. Pilocarpin-induced sweat gland stimulation by iontophoretic transfer adapted from the methods used for cystic fibrosis sweat test was used for sweat induction. Sweat volume, sweat copper concentration, serum ceruloplasmin and serum copper were analysed in 28 Wilson patients and 21 controls.

Results

The Wilson protein is expressed in human and rat sweat gland epithelia. Copper concentration in sweat is not significantly different between controls and Wilson patients. Wilson patients produce significantly smaller volumes of sweat compared to controls. Sweat production is partially reversible in Wilson patients under medical treatment for Wilson disease or after liver transplantation

Conclusion

Wilson patients show a reduced sweat production with unaltered sweat copper concentration. The Wilson protein might play an important role in physiological sweat production."xsd:string
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http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/author"Schaefer M."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/author"Schellenberg M."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/author"Merle U."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/author"Stremmel W."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/author"Weiss K.H."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/date"2008"xsd:gYear
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/name"BMC Gastroenterol"xsd:string
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http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/title"Wilson protein expression, copper excretion and sweat production in sweat glands of Wilson disease patients and controls."xsd:string
http://purl.uniprot.org/citations/18637198http://purl.uniprot.org/core/volume"8"xsd:string
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