Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-9-27
pubmed:abstractText
The effect of melatonin on melanocyte functions was studied by incubating whole-skin organ cultures with melatonin, as well as by assessing melatonin positivity in melanocytes versus dendricity and pigmentation, when arrested in the G(2) phase. From this study, it was observed that melatonin positivity is inversely related to the length of UV exposure. Increasing melatonin levels are related to decreasing dendricity and pigment donation during photoresponse in the G(2) phase. Melanocyte melatonin positivity increases with dark incubation and is higher with a pulse of UV exposure after dark incubation with melatonin. This increase is associated with a doubling of melanocyte number after dark incubation and a further doubling upon exposure to a pulse of UV. The melanocytes directly take up melatonin, which results in a marked increase in their numbers. Thus, extreme caution should be exercised when using melatonin as an anticancer drug. This finding also simulates the melanocyte repopulation of the skin with repigmentation during summer in polar animals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1422-4933
pubmed:author
pubmed:copyrightInfo
Copyright 2000 S. Karger AG, Basel.
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
260-6
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Melatonin and melanocyte functions.
pubmed:affiliation
Pigment Cell Centre, New Delhi, India.
pubmed:publicationType
Journal Article