Reduced pericardial levels of endostatin correlate with collateral development in patients with ischemic heart disease
Vipul R. Panchal, MD*,
Jalees Rehman, MD*,
Anne T. Nguyen, MS*,
John W. Brown, MD ,
Mark W. Turrentine, MD ,
Yousuf Mahomed, MD and
Keith L. March, MD, PhD*,*
* Department of Medicine, Krannert Institute of Cardiology, Indianapolis, Indiana, USA
Department of Surgery, Thoracic Surgery Section, Indiana University School of Medicine, Indianapolis, Indiana, USA

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Figure 1 Vascular endothelial growth factor (VEGF) and endostatin levels in patients grouped with respect to gender, presence or absence of diabetes mellitus (DM), acute coronary syndrome (ACS) (present or absent), and ejection fraction (EF) (<35% or >35%). There are no statistically significant differences shown in either VEGF or endostatin with respect to any of these factors.
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Figure 2 Vascular endothelial growth factor (VEGF) and endostatin levels in patients without angiographically visible collaterals (Rentrop grade 0) versus those with robust angiographically visible colaterals (Rentrop grade 3). Although VEGF is not different between these populations, endostatin is reduced by 40%, with strong significance, in the patient group that has manifested the growth of prominent collaterals.
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