Kaiyi Zhong1, Xiang Wang1, Xiaotong Ma1, Xiaokang Ji2, Shaowei Sang3, Sai Shao4, Yuanyuan Zhao1, Yuanyuan Xiang1, Jifeng Li1, Guangbin Wang4, Ming Lv3, Fuzhong Xue2, Yifeng Du1, Qinjian Sun5. 1. Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, #324 Jingwu Weiqi Road, Jinan, 250021, Shandong, People's Republic of China. 2. Department of Biostatistics, School of Public Health, Shandong University, Jinan, Shandong, China. 3. Department of Clinical Epidemiology, Qilu Hospital affiliated to Shandong University, Jinan, Shandong, China. 4. Department of Radiology, Shandong Medical Imaging Research Institute Affiliated to Shandong University, Jinan, Shandong, China. 5. Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, #324 Jingwu Weiqi Road, Jinan, 250021, Shandong, People's Republic of China. sqj1210@163.com.
Abstract
INTRODUCTION: The effects of bilirubin on asymptomatic intracranial atherosclerosis (aICAS) remain uncertain. OBJECTIVES: To investigate the association between bilirubin and aICAS in rural-dwelling Chinese people. METHODS: This population-based study included 2013 participants from the Kongcun Town Study, which aimed to investigate the prevalence of aICAS in people aged ≥ 40 years who were free of stroke and hepatic and gall disease history. Baseline data were collected via interviews, clinical examinations, and laboratory tests. Total bilirubin (Tbil), direct bilirubin (Dbil), and indirect bilirubin (Ibil) levels were divided into high-concentration group and low-concentration group, respectively. We diagnosed aICAS and moderate-to-severe aICAS (m-saICAS) (≥ 50% stenosis) by integrating transcranial Doppler ultrasound with magnetic resonance angiography. The association between bilirubin and aICAS, as well as m-saICAS, was analyzed using logistic regression. RESULTS: Of the 2013 participants, those in the high-concentration group of Tbil (odds ratio (OR), 0.50; 95% confidence interval (CI), 0.42-0.87), Dbil (OR 0.60, 95%CI 0.41-0.87), and Ibil (OR 0.67; 95%CI 0.47-0.97) had a lower risk of aICAS than those in the low-concentration group after adjusting all confounders. The high concentrations of Tbil, Dbil, and Ibil were also negatively associated with m-saICAS. After stratification according to age, Tbil, Dbil, and Ibil were significantly negatively associated with aICAS among participants aged ≥ 60 years. CONCLUSION: Tbil, Dbil, and Ibil might be independent protective factors for aICAS and moderate-to-severe aICAS in rural-dwelling Chinese people, especially among older participants aged ≥ 60 years.
INTRODUCTION: The effects of bilirubin on asymptomatic intracranial atherosclerosis (aICAS) remain uncertain. OBJECTIVES: To investigate the association between bilirubin and aICAS in rural-dwelling Chinese people. METHODS: This population-based study included 2013 participants from the Kongcun Town Study, which aimed to investigate the prevalence of aICAS in people aged ≥ 40 years who were free of stroke and hepatic and gall disease history. Baseline data were collected via interviews, clinical examinations, and laboratory tests. Total bilirubin (Tbil), direct bilirubin (Dbil), and indirect bilirubin (Ibil) levels were divided into high-concentration group and low-concentration group, respectively. We diagnosed aICAS and moderate-to-severe aICAS (m-saICAS) (≥ 50% stenosis) by integrating transcranial Doppler ultrasound with magnetic resonance angiography. The association between bilirubin and aICAS, as well as m-saICAS, was analyzed using logistic regression. RESULTS: Of the 2013 participants, those in the high-concentration group of Tbil (odds ratio (OR), 0.50; 95% confidence interval (CI), 0.42-0.87), Dbil (OR 0.60, 95%CI 0.41-0.87), and Ibil (OR 0.67; 95%CI 0.47-0.97) had a lower risk of aICAS than those in the low-concentration group after adjusting all confounders. The high concentrations of Tbil, Dbil, and Ibil were also negatively associated with m-saICAS. After stratification according to age, Tbil, Dbil, and Ibil were significantly negatively associated with aICAS among participants aged ≥ 60 years. CONCLUSION:Tbil, Dbil, and Ibil might be independent protective factors for aICAS and moderate-to-severe aICAS in rural-dwelling Chinese people, especially among older participants aged ≥ 60 years.
Authors: Muhammad Fareed K Suri; Ye Qiao; Xiaoye Ma; Eliseo Guallar; Jincheng Zhou; Yiyi Zhang; Li Liu; Haitao Chu; Adnan I Qureshi; Alvaro Alonso; Aaron R Folsom; Bruce A Wasserman Journal: Stroke Date: 2016-04-07 Impact factor: 7.914
Authors: Halina White; Bernadette Boden-Albala; Cuiling Wang; Mitchell S V Elkind; Tanja Rundek; Clinton B Wright; Ralph L Sacco Journal: Circulation Date: 2005-03-15 Impact factor: 29.690