Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians

<p>Abstract</p> <p>Objective</p> <p>Many studies have shown that vegetarian diet has beneficial effects on the prevention of cardiovascular diseases. However, the effect of vegetarian diet on carotid intima-media thickness (IMT), as well as the association between IMT a...

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Main Authors: Liu Chang-Qin, Yan Bing, Wang Li-Ying, Sun Su-Yun, Zhang Hui-Jie, Yang Shu-Yu, Zhang Wei, Li Xue-Jun
Format: Article
Language:English
Published: BMC 2011-09-01
Series:Nutrition & Metabolism
Subjects:
Online Access:http://www.nutritionandmetabolism.com/content/8/1/63
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author Liu Chang-Qin
Yan Bing
Wang Li-Ying
Sun Su-Yun
Zhang Hui-Jie
Yang Shu-Yu
Zhang Wei
Li Xue-Jun
author_facet Liu Chang-Qin
Yan Bing
Wang Li-Ying
Sun Su-Yun
Zhang Hui-Jie
Yang Shu-Yu
Zhang Wei
Li Xue-Jun
author_sort Liu Chang-Qin
collection DOAJ
description <p>Abstract</p> <p>Objective</p> <p>Many studies have shown that vegetarian diet has beneficial effects on the prevention of cardiovascular diseases. However, the effect of vegetarian diet on carotid intima-media thickness (IMT), as well as the association between IMT and duration of vegetarian diet, are still unclear. The present study aims to investigate the influence of duration of vegetarian diet on cardiovascular risk factors, and more importantly on IMT among Chinese vegetarians.</p> <p>Methods</p> <p>One hundred and seventy-one Chinese male vegetarians were screened for metabolic profile, cardiovascular risk and carotid IMT. They were compared with 129 age-matched omnivores recruited from a community-based health project. The effects of confounding factors were adjusted by stepwise logistic regression analysis.</p> <p>Results</p> <p>Compared to the omnivores, the vegetarians had lower BMI, weight, systolic blood pressure and diastolic blood pressure. Also, the levels of triglyceride, total cholesterol, HDL-Cholesterol, LDL-Cholesterol, ApoA1, ApoB, uric acid, albumin and γ-glutamyltransferase were significantly reduced in vegetarians. Omnivores had significantly higher fasting blood glucose than that of vegetarians. However, there were no differences in fasting insulin, C-reactive protein and HOMA-IR between the two groups. IMT was thinner in the vegetarian group than in the omnivore group (0.59 ± 0.16 vs. 0.63 ± 0.10 cm, <it>P </it>< 0.05). The vegetarians were divided according to duration of vegetarian diet (< 6 years, 6 to ≤ 11 years, > 11 years), those in tertile 1 (< 6 years) and tertile 2 (6 to ≤ 11 years) had shown thinner IMT as compared to the omnivores, and tertile 3 had shown no reduction.</p> <p>Conclusion</p> <p>A decrease in multiple cardiovascular risk factors such as BMI, blood pressure and lipid profile was associated with vegetarian diet. Moreover, taking a low-calorie, low-protein, or vegetarian diet might have great beneficial effects on IMT through improved lipid profile, and the beneficial effects appeared to be correlated with the duration of vegetarian diet.</p>
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spelling doaj.art-e891d836968d4370b21093eecae46b1a2022-12-21T21:05:20ZengBMCNutrition & Metabolism1743-70752011-09-01816310.1186/1743-7075-8-63Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetariansLiu Chang-QinYan BingWang Li-YingSun Su-YunZhang Hui-JieYang Shu-YuZhang WeiLi Xue-Jun<p>Abstract</p> <p>Objective</p> <p>Many studies have shown that vegetarian diet has beneficial effects on the prevention of cardiovascular diseases. However, the effect of vegetarian diet on carotid intima-media thickness (IMT), as well as the association between IMT and duration of vegetarian diet, are still unclear. The present study aims to investigate the influence of duration of vegetarian diet on cardiovascular risk factors, and more importantly on IMT among Chinese vegetarians.</p> <p>Methods</p> <p>One hundred and seventy-one Chinese male vegetarians were screened for metabolic profile, cardiovascular risk and carotid IMT. They were compared with 129 age-matched omnivores recruited from a community-based health project. The effects of confounding factors were adjusted by stepwise logistic regression analysis.</p> <p>Results</p> <p>Compared to the omnivores, the vegetarians had lower BMI, weight, systolic blood pressure and diastolic blood pressure. Also, the levels of triglyceride, total cholesterol, HDL-Cholesterol, LDL-Cholesterol, ApoA1, ApoB, uric acid, albumin and γ-glutamyltransferase were significantly reduced in vegetarians. Omnivores had significantly higher fasting blood glucose than that of vegetarians. However, there were no differences in fasting insulin, C-reactive protein and HOMA-IR between the two groups. IMT was thinner in the vegetarian group than in the omnivore group (0.59 ± 0.16 vs. 0.63 ± 0.10 cm, <it>P </it>< 0.05). The vegetarians were divided according to duration of vegetarian diet (< 6 years, 6 to ≤ 11 years, > 11 years), those in tertile 1 (< 6 years) and tertile 2 (6 to ≤ 11 years) had shown thinner IMT as compared to the omnivores, and tertile 3 had shown no reduction.</p> <p>Conclusion</p> <p>A decrease in multiple cardiovascular risk factors such as BMI, blood pressure and lipid profile was associated with vegetarian diet. Moreover, taking a low-calorie, low-protein, or vegetarian diet might have great beneficial effects on IMT through improved lipid profile, and the beneficial effects appeared to be correlated with the duration of vegetarian diet.</p>http://www.nutritionandmetabolism.com/content/8/1/63vegetarian dietIMTduration of vegetarian diet
spellingShingle Liu Chang-Qin
Yan Bing
Wang Li-Ying
Sun Su-Yun
Zhang Hui-Jie
Yang Shu-Yu
Zhang Wei
Li Xue-Jun
Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
Nutrition & Metabolism
vegetarian diet
IMT
duration of vegetarian diet
title Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
title_full Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
title_fullStr Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
title_full_unstemmed Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
title_short Relationship of carotid intima-media thickness and duration of vegetarian diet in Chinese male vegetarians
title_sort relationship of carotid intima media thickness and duration of vegetarian diet in chinese male vegetarians
topic vegetarian diet
IMT
duration of vegetarian diet
url http://www.nutritionandmetabolism.com/content/8/1/63
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