We also noted that whenever there is PVAT deposition in the adventitia, inflammatory cells are also present.
Note the presence of infiltratory cells along the aortic wall (arrow) and deposition of perivascular adipose tissue (PVAT) in the tunica adventitia of (b) OVX.
NW: Normal weight individuals OW&OB: Overweight and obese individuals NO: Nitric oxide ROS: Reactive oxygen species BMI: Body mass index 6MWT: 6-Minute walking test IL-1ra: Interleukin-1ra IL-1[beta]: Interleukin-1[beta] IL-6: Interleukin-6 IL-8: Interleukin-8 IL-10: Interleukin-10 TNF-[alpha]: Tumor necrosis factor-[alpha] MCP-1: Monocyte chemoattractant protein-1 CRP: C-reactive protein FMD: Flow-mediated dilation BF: Blood flow 1RM: 1 repetition maximum ET-1: Endothelin-1
PVAT: Perivascular adipose tissue.
In obese and type II diabetics, insulin resistance causes impairment of the endocrine function of
PVAT, an imbalance in the secretion of vasoconstrictor and vasodilator molecules, and increasing of the production of ROS, all of which lead to endothelial dysfunction and vascular hypertension [2].
In this article, we report the effects of darapladib on lipid profile, Ox-LDL level, number of foam cells, and
PVAT thickness in Sprague--Dawley rats that were given high-fat diet.
In the 2nd and 3rd phases of the experiment, a 5.4% increase in
PVAT, in comparison to baseline values was registered (280.4 vs.
As can be seen from the
PVAT plot for the apoB/A test (Fig.
Thus, this review will shed light on different cells, including endothelial cells (ECs), SMCs, fibroblasts, and adipocytes from the tunica intima, media, adventitia, and
PVAT and their related cytokines, and elucidate how these cells contribute to the pathogenesis of atherosclerosis (Figure 1).
Therefore, although VAT may be the main source contributing to circulating levels of visfatin/Nampt, we cannot ignore the impact of visfatin/Nampt from other adipose depots such as
PVAT or EF that can act in a paracrine manner in the CV system.