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. 2015:2015:984193.
doi: 10.1155/2015/984193. Epub 2015 Dec 1.

Obstructive Sleep Apnea, Hypertension, and Their Additive Effects on Atherosclerosis

Mario Francesco Damiani  1 , Annapaola Zito  2 , Pierluigi Carratù  1 , Vito Antonio Falcone  1 , Elioda Bega  1 , Pietro Scicchitano  2 , Marco Matteo Ciccone  2 , Onofrio Resta  1
Affiliations

Obstructive Sleep Apnea, Hypertension, and Their Additive Effects on Atherosclerosis

Mario Francesco Damiani et al. Biochem Res Int. 2015.

Abstract

Background and Aims. It is widely accepted that obstructive sleep apnea (OSA) is independently associated with atherosclerosis. Similar to OSA, hypertension (HTN) is a condition associated with atherosclerosis. However, to date, the impact of the simultaneous presence of OSA and HTN on the risk of atherosclerosis has not been extensively studied. The aim of this study was to evaluate the consequences of the coexistence of OSA and HTN on carotid intima-media thickness (IMT) and on inflammatory markers of atherosclerosis (such as interleukin- [IL-] 6 and pentraxin- [PTX-] 3). Methods. The study design allowed us to define 4 groups: (1) controls (n = 30); (2) OSA patients without HTN (n = 30); (3) HTN patients without OSA (n = 30); (4) patients with OSA and HTN (n = 30). In the morning after portable monitoring (between 7 am and 8 am), blood samples were collected, and carotid IMT was measured. Results. Carotid IMT, IL-6, and PTX-3 in OSA normotensive patients and in non-OSA HTN subjects were significantly higher compared to control subjects; in addition, in OSA hypertensive patients they were significantly increased compared to OSA normotensive, non-OSA HTN, or control subjects. Conclusions. OSA and HTN have an additive role in the progression of carotid atherosclerosis and in blood levels of inflammatory markers for atherosclerosis, such as interleukin-6 and pentraxin-3.

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Figures

Figure 1
Figure 1
Carotid IMT in controls, HTN, OSA, and OSA + HTN subjects. ∗ p < 0.01; ∗∗ p < 0.05.
Figure 2
Figure 2
IL-6 in controls, HTN, OSA, and OSA + HTN subjects. ∗ p < 0.01.
Figure 3
Figure 3
PTX-3 in controls, HTN, OSA, and OSA + HTN subjects. ∗ p < 0.01.
See this image and copyright information in PMC

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