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Erschienen in: Journal of the International AIDS Society 4/2010

Open Access 01.11.2010 | Poster presentation

Low serum phosphate levels are related to increased cardiovascular risk in HIV-1 infected patients

verfasst von: P Grima, M Guido, R Chiavaroli, P Tundo, A Zizza

Erschienen in: Journal of the International AIDS Society | Sonderheft 4/2010

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Purpose of the study

Hypophosphatemia may contribute directly to the development of obesity, hypertension and dyslipidemia. Hyperglycemia, insulin resistance, hyperlipidemia and hypertension, which are components of metabolic syndrome, are also recognized as strong risk factors for cardiovascular disease [1]. This study was performed to determine whether serum phosphate levels are associated with increased risk for cardiovascular events.

Methods

We enrolled 125 consecutive HIV-1-infected patients in a cross-sectional study. All patients were receiving highly active antiretroviral therapy (HAART) for more than six months. Fasting phosphate, lipids (cholesterol, HDL, triglycerides), Homeostasis Model Assessment (HOMA), blood pressure were evaluated. Framingham 10 years risk of general cardiovascular disease was used to assess three cardiovascular risk (CVR) categories (low CVR < 10%, medium CVR between 10 and 20%, high CVR > 20%).

Summary of results

We observed a statistically significant decrease in serum phosphate levels in the three different CVR groups (low risk: 3.5 mg/dl; medium risk: 3.3 mg/dl; high risk: 2.9 mg/dl; p=0.001). There was a strong negative correlation between Framingham score and phosphate levels (r:-0.37, p<0.0001). Figure 1
Multiple regression analysis, including age, months of HAART, CD4 cells count, cholesterol, HDL, HOMA, systolic pressure, months of Tenofovir use, showed that only HOMA (r:-0.30, p<0.01) and age (r:-0.3, p<0.01) were the most important determinants of serum phosphate values.

Conclusions

We found that lower phosphate level is correlated with cardiovascular risk and insulin resistance. Therefore, when serum phosphate levels are too low the patients is at risk for cardiovascular events and/or metabolic syndrome.
This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://​creativecommons.​org/​licenses/​by/​2.​0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Literatur
1.
Zurück zum Zitat Park W, Kim BS, Lee JE: Serum phosphate levels and the risk of cardiovascular disease and metabolic syndrome: a double-edged sword. Diabetes Res Clin Pract. 2009, 83 (1): 119-25. 10.1016/j.diabres.2008.08.018.CrossRefPubMed Park W, Kim BS, Lee JE: Serum phosphate levels and the risk of cardiovascular disease and metabolic syndrome: a double-edged sword. Diabetes Res Clin Pract. 2009, 83 (1): 119-25. 10.1016/j.diabres.2008.08.018.CrossRefPubMed
Metadaten
Titel
Low serum phosphate levels are related to increased cardiovascular risk in HIV-1 infected patients
verfasst von
P Grima
M Guido
R Chiavaroli
P Tundo
A Zizza
Publikationsdatum
01.11.2010
Verlag
BioMed Central
Erschienen in
Journal of the International AIDS Society / Ausgabe Sonderheft 4/2010
Elektronische ISSN: 1758-2652
DOI
https://doi.org/10.1186/1758-2652-13-S4-P66

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