Linked Life Data

19925289

Source:http://linkedlifedata.com/resource/pubmed/id/19925289

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2009-11-20
pubmed:abstractText
Cardiovascular (CV) disease is the main cause of death in peritoneal dialysis (PD) patients, and endothelial dysfunction (ED) is an early sign of vascular pathology. Ghrelin, a gastric peptide with CV actions, has been shown to inhibit proatherogenic changes in experimental models. However, another peptide hormone, leptin, may mediate deleterious effects on the CV system. The aim of this study is to evaluate the relationship between plasma ghrelin and leptin levels, and their association with coronary microvascular and endothelial functions in PD patients. Twenty-four (14 females and 10 males; mean age 44 +/- 12 yr) nondiabetic PD patients, between 18 and 70 years of age, were enrolled. In addition to demographic, clinical, and laboratory parameters, plasma concentrations of ghrelin and leptin were evaluated. Endothelial functions of the coronary arteries were determined by coronary flow reserve (CFR) measurement using transthoracic Doppler echocardiography (TTDE). A CFR value of < 2 was used as an evidence for ED. When the study group was divided according to CFR measurements as CFR < 2 and >or= 2, there were no significant differences considering age, gender, etiology of renal disease, body mass index (BMI), duration of dialysis, PD modality, PD solution type, history of peritonitis, mean arterial pressure, ejection fraction, and biochemical parameters between the two subgroups. Plasma ghrelin levels (129.4 +/- 82.1 pg/mL) in patients with CFR >or= 2 were significantly higher than those in patients with CFR< 2 (63.3 +/- 35.8 pg/mL) (p = 0.03). However, no significant differences in plasma leptin levels were found between these groups [31.39 +/- 37.81 ng/mL vs. 63.95 +/- 72.83 ng/mL (p = 0.28)]. No correlation existed between plasma ghrelin levels and age, BMI, duration of dialysis, mean arterial pressure, ejection fraction, plasma leptin levels, and biochemical parameters. Decreased plasma ghrelin levels may contribute to the development of atherosclerosis in PD patients by causing ED.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1525-6049
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
807-13
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Plasma ghrelin levels are associated with coronary microvascular and endothelial dysfunction in peritoneal dialysis patients.
pubmed:affiliation
Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey. ykcaliskan@yahoo.com
pubmed:publicationType
Journal Article