Elevated Pro-Brain Natriuretic Peptide, Troponin T and Malnutrition Inflammatory Score in Chronic Hemodialysis Patients with Overt Cardiovascular Disease.
Summary of "Elevated Pro-Brain Natriuretic Peptide, Troponin T and Malnutrition Inflammatory Score in Chronic Hemodialysis Patients with Overt Cardiovascular Disease."
Background: We assessed the relationship between pro-brain natriuretic peptide (pro-BNP), troponin T (TropT) and nutritional status. Methods: A total of 48 chronic hemodialysis patients were grouped according to the presence [group A (GA); n = 24] or not [group B (GB)] of cardiovascular disease. Results: Compared to GB subjects, GA subjects were older, had been on hemodialysis for a longer period and had higher prevalences of vascular grafts, hypertension and elevated C-reactive protein (CRP) [GA vs.
GB:
1.1 (range 0.1-32.9) vs. 0.4 (0-28.1) mg/dl; p = 0.028], malnutrition inflammatory score (MIS) (GA vs.
GB:
7.50 vs. 4.00; p = 0.001), pro-BNP [GA vs.
GB:
6,760 (601-103,200) vs. 686 (75-83,700) pg/ml; p < 0.001] and TropT [GA vs.
GB:
0.3650 (0.011-0.199) vs. 0.010 (0.0-0.290) ng/ml; p = 0.002]. Pro-BNP correlated with TropT (rho 0.539; p < 0.001), MIS (rho 0.502; p < 0.0001), homocysteine (rho 0.321; p = 0.13) and CRP (rho 0.511; p < 0.0001). Pro-BNP levels were lower in GB patients as the body mass index increased; the opposite occurred in GA. Conclusions: Patients with cardiovascular disease had elevated pro-BNP and TropT levels. In patients without cardiovascular disease, malnutrition and inflammation were associated with vascular prostheses, while pro-BNP was lower in obese patients.
Affiliation
Servicio de Nefrología, Hospital Británico de Buenos Aires, Buenos Aires, Argentina.
Journal Details
This article was published in the following journal.
Name: Nephron. Clinical practice
ISSN: 1660-2110
Pages: c198-c205
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20805692
- DOI: http://dx.doi.org/10.1159/000320195
Medical and Biotech [MESH] Definitions
Natriuretic Peptides
Peptides that regulate the WATER-ELECTROLYTE BALANCE in the body, also known as natriuretic peptide hormones. Several have been sequenced (ATRIAL NATRIURETIC FACTOR; BRAIN NATRIURETIC PEPTIDE; C-TYPE NATRIURETIC PEPTIDE).
Natriuretic Peptide, C-type
A PEPTIDE of 22 amino acids, derived mainly from cells of VASCULAR ENDOTHELIUM. It is also found in the BRAIN, major endocrine glands, and other tissues. It shares structural homology with ATRIAL NATRIURETIC FACTOR. It has vasorelaxant activity thus is important in the regulation of vascular tone and blood flow. Several high molecular weight forms containing the 22 amino acids have been identified.
Natriuretic Peptide, Brain
A PEPTIDE that is secreted by the BRAIN and the HEART ATRIA, stored mainly in cardiac ventricular MYOCARDIUM. It can cause NATRIURESIS; DIURESIS; VASODILATION; and inhibits secretion of RENIN and ALDOSTERONE. It improves heart function. It contains 32 AMINO ACIDS.
Atrial Natriuretic Factor
A potent natriuretic and vasodilatory peptide or mixture of different-sized low molecular weight PEPTIDES derived from a common precursor and secreted mainly by the HEART ATRIUM. All these peptides share a sequence of about 20 AMINO ACIDS.
Apgar Score
A method, developed by Dr. Virginia Apgar, to evaluate a newborn's adjustment to extrauterine life. Five items - heart rate, respiratory effort, muscle tone, reflex irritability, and color - are evaluated 60 seconds after birth and again five minutes later on a scale from 0-2, 0 being the lowest, 2 being normal. The five numbers are added for the Apgar score. A score of 0-3 represents severe distress, 4-7 indicates moderate distress, and a score of 7-10 predicts an absence of difficulty in adjusting to extrauterine life.
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