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Perivascular adipose tissue phenotype correlates with symptomatic status of patients undergoing carotid endarterectomy

Sharma, Gaurav and Tao, Ming and Ding, Kui and Yu, David and King, William and Deyneko, Galina and Wang, Xiaosong and Longchamp, Alban and Schoen, Frederick J. and Ozaki, Kieth and Semel, Marcus E (2015) Perivascular adipose tissue phenotype correlates with symptomatic status of patients undergoing carotid endarterectomy. Stroke.

Abstract

BACKGROUND AND PURPOSE:

Recent symptoms stand as a major determinant of stroke risk in patients with carotid stenosis, likely reflective of atherosclerotic plaque destabilization. In view of emerging links between vascular and adipose biology, we hypothesized that human perivascular adipose characteristics associate with carotid disease symptom status.

METHODS:

Clinical history, carotid plaques, blood, and subcutaneous and perivascular adipose tissues were prospectively collected from patients undergoing carotid endarterectomy. Nine adipose-associated biological mediators were assayed and compared in patients with symptomatic (n=15) versus asymptomatic (n=19) disease. Bonferroni correction was performed for multiple testing (α/9=0.006).

RESULTS:

Symptomatic patients had 1.9-fold higher perivascular adiponectin levels (P=0.005). Other circulating, subcutaneous, and perivascular biomarkers, as well as microscopic plaque characteristics, did not differ between symptomatic and asymptomatic patients.

CONCLUSIONS:

Symptomatic and asymptomatic carotid endarterectomy patients display a tissue-specific difference in perivascular adipose adiponectin. This difference, which was not seen in plasma or subcutaneous compartments, supports a potential local paracrine relationship with vascular disease processes that may be related to stroke mechanisms.

Item Type: Article
Keywords: adipokines; adiponectin; atherosclerosis; carotid stenosis; endarterectomy, carotid
Date Deposited: 26 Apr 2016 23:45
Last Modified: 26 Apr 2016 23:45
URI: https://oak.novartis.com/id/eprint/24397

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