Linked Life Data

12555229

Source:http://linkedlifedata.com/resource/pubmed/id/12555229

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-1-29
pubmed:abstractText
Panic disorder (PD) is a clinical syndrome characterized by recurrent discrete episodes of fear accompanied by a variety of physiological and psychological symptoms, often with prominent respiratory components. A series of clinical observations has led some investigators to hypothesize that subtle alterations in ventilatory regulation are integral to at least a subtype of PD. In order to identify genetic factors that might predispose individuals to these alterations in ventilatory response, we conducted single stranded conformation polymorphism analysis across the exons of the lactate dehydrogenase A and B genes (LDHA and LDHB) using DNA prepared from 86 subjects previously characterized by respiratory response to a CO(2) challenge with a variable genetic loading for PD. Remarkably, a single conserved LDHA exon 5 haplotype conferred increased risk for a paradoxical ventilatory response pattern to CO(2) inhalation which robustly separated well subjects at high risk for PD from low-risk control subjects. But, comparison of LDHA exon 5 genotypes in PD probands (n = 25) to that of random newborn controls (n = 182) did not demonstrate any significant differences. Given the pivotal role of LDH in the metabolism of lactate, a known inducer of panic attacks, and the dependence of LDH activity on cell pH, we suggest that LDHA polymorphisms may contribute to the variability to CO(2) respiratory challenge.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1552-4841
pubmed:author
pubmed:copyrightInfo
Copyright 2003 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:volume
117B
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
11-7
pubmed:dateRevised
2008-5-21
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Association of an exonic LDHA polymorphism with altered respiratory response in probands at high risk for panic disorder.
pubmed:affiliation
Department of Psychiatry, The University of Iowa, Iowa City, Iowa 52242-1000, USA. robert-philibert@uiowa.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't