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Relationship between the niacin skin flush response and essential fatty acids in schizophrenia.

Author information

1
Behavioral Health and Clinical Neurosciences Division and Research Service, Portland VA Medical Center, 3710 SW US Veterans Hospital Road, Portland, OR 97201, USA. messamor@ohsu.edu

Abstract

The skin flush response to niacin is selectively mediated by the release of vasodilatory prostaglandins from the skin. The normal skin flush response to niacin is attenuated in many individuals with schizophrenia (SCZ). This finding suggests abnormal prostaglandin signaling in SCZ. Since prostaglandins are derived from arachidonic acid (AA), the finding of an abnormal skin flush response is consistent with biochemical data suggesting relative depletion of AA, and other essential fatty acids (EFAs), in a substantial portion of people with SCZ. This paper will describe the mechanism of the skin flush response to niacin, and will review evidence that the response to niacin is abnormal in SCZ, that this abnormality is not related to psychotropic medications, and that it may be a marker of the EFA deficiency which has been documented to be present in many patients with SCZ.

PMID:
14623495
DOI:
10.1016/j.plefa.2003.08.013
[Indexed for MEDLINE]

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