Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2000-8-29
pubmed:abstractText
Leptin and its receptor are involved in endocrine and paracrine regulation of metabolism, obesity and reproduction. Here, we describe the detection of the functional long isoform receptor of leptin in human endometrium. The leptin receptor protein was shown to be expressed in glandular and luminal epithelium and is periodically regulated throughout the menstrual cycle, demonstrating main expression in follicular and mid-luteal phase. In contrast, leptin receptor mRNA is detectable by reverse transcription-polymerase chain reaction (RT-PCR) as a constitutive component. Since RT-PCR analyses showed that leptin is not expressed in this tissue, the present study suggests that the human endometrium is a novel target for leptin. Therefore, we investigated 11 subfertile patients who underwent two biopsies in one menstrual cycle. The patients presented with a repetitive endometrial maturation defect, but showed adequate serum hormone concentrations and normal steroid hormone receptor expression and down-regulation in the endometrium. These patients were, however, deficient for expression of the functional leptin receptor. These analyses provide evidence that the lack of the leptin receptor in an ovulatory cycle may contribute to subfertility by a yet undefined 'endometrial factor'.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1360-9947
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
595-601
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
The endometrium as a novel target for leptin: differences in fertility and subfertility.
pubmed:affiliation
Department of Anatomy and Reproductive Biology, University of Aachen, Germany. jalfer@post.klinikum.rwth-aachen.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't