Calcium homeostasis influences epidermal sweating in patients with vitiligo.
case_control · Level III
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Abstract
Patients with vitiligo have a decreased sweating response in both their lesional and non-lesional skin (n = 17) compared with healthy age- and sex-matched controls (n = 22) after stimulation with the acetylcholine agonist pilocarpine. The decreased cholinergic response of the dermal sweat glands in this patient group correlates with a significantly lower calcium concentration in sweat compared with controls. In addition, a significantly higher potassium concentration was found in the pigmented skin of these patients. The other fast exchange ions sodium and chloride are unaffected. In vitiligo, there was a marginal sweat induction after adrenergic stimulation in four of 10 patients tested whereas all controls (n = 10) did not show any response.
Medical subject headings
- Calcium
- Epidermis
- Sweating
- Vitiligo