Linked Life Data

8045954

Source:http://linkedlifedata.com/resource/pubmed/id/8045954

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-9-1
pubmed:abstractText
Postpartum thyroiditis (PPT) affects half of the 10% of women who have elevated circulating thyroid autoantibodies during the postpartum year. Because of the similarities between PPT and Hashimoto's thyroiditis, the pathogenic role of complement in PPT has been investigated. Complement fixation by thyroid peroxidase antibodies (TPO Abs) (expressed as log reciprocal titer) in serum from euthyroid TPO Ab-positive women (n = 29) was 0.91 at 1 month postpartum and increased to 1.45 by 12 months postpartum; complement C3 activation, measured by enzyme-linked immunosorbent assay, in a similar group of women (n = 75) was 0.05 at delivery and increased to 0.33 by 6 months postpartum. In women with PPT, there was greater TPO Ab-related complement activation during the postpartum year; complement fixation increased from 1.00 at 1 month postpartum to 1.48 at 4 months postpartum (P < 0.005) (n = 25), and C3 activation increased from 0.11 at delivery to 0.63 at 6 months postpartum (P < 0.005) (n = 73). Bioactive TPO Ab (TPO Ab x C3 index) was significantly higher in PPT women (55 kilo international units of activity (kIU)/L at 6 months postpartum) (Hashimoto range, 30-108 kIU/L) compared with euthyroid TPO Ab-positive women (< 9 kIU/L at all time points; P < 0.005). Serum samples from TPO Ab-negative control women showed no interaction with complement in either assay at any time during the postpartum year (complement fixation < 0.7; complement C3 activation index < 0.01). This detailed examination of the role of complement in the pathogenesis of PPT shows that TPO Ab-driven complement fixation is a marker for thyroid dysfunction in TPO Ab-positive women. The levels of bioactive TPO Ab in PPT fall within the range seen in Hashimoto's thyroiditis, suggesting similarities in their pathology.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
79
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
395-400
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
The role of complement in the pathogenesis of postpartum thyroiditis.
pubmed:affiliation
Department of Medicine, University of Wales College of Medicine, Heath Park, Cardiff.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't