Publications by authors named "Zheng-ming Chen"

Background: Tobacco cessation is proven to be the most effective and cost-effective strategy for smokers to reduce their risk of smoking-related disease and premature death. Providing effective, efficient, safe, and patient-centred tobacco cessation treatment to reach those who need them is a significant challenge. To date, only a few nationwide studies in China have assessed the overall clinical care practice and treatment outcome of tobacco cessation.

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Objective: To clarify the extent to which smokers in the general population experience tobacco withdrawal symptoms and whether such experience differs in those who continue to smoke and those who stopped smoking.

Methods: We included relevant questions in the nationally-representative China Health Literacy Survey (CHLS) conducted in 2018-2019. Among 87,028 participants, there were 22,115 ever-smokers aged 20-69 years who provided information on their smoking history and their experience of tobacco withdrawal symptoms.

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Article Synopsis
  • Tobacco dependence is a significant barrier to quitting smoking and was found to have a prevalence of 13.1% among the general Chinese population aged 20-69, and 49.7% among current smokers, with rates differing by gender and across provinces.
  • The study used data from the 2018 China Health Literacy Survey, which involved over 84,000 participants, to analyze sociodemographic characteristics and factors associated with tobacco dependence.
  • Findings indicated that higher levels of tobacco dependence correlated with increased smoking intensity, such as the number of cigarettes smoked per day and the age at which smoking started.
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  • The study aimed to explore factors that could influence the age at which Chinese women experience menopause, using data collected from over half a million participants in the China Kadoorie Biobank.
  • Results indicated that older age, being a housewife, earlier menarche, and exposure to passive smoking were linked to both premature and early menopause, while factors like higher socioeconomic status, healthier lifestyle choices, and body weight were correlated with later menopause.
  • The findings highlight various sociodemographic, lifestyle, and reproductive factors that could be targeted to manage menopause timing in Chinese women.
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Aims/introduction: Evidence has shown that stressful life events are associated with the development of diabetes, yet studies in mainland China are scarce. In the present study, we explored the associations between cumulative and specific stressful life events and the prevalence of diabetes in Chinese adults.

Materials And Methods: The cross-sectional data were from the China Kadoorie Biobank study, which enrolled approximately 500,000 adults aged 30-79 years from 10 diverse regions of China.

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  • - The study aimed to identify factors affecting the age at natural menopause among over 17,000 postmenopausal Chinese women as part of the China Kadoorie Biobank research.
  • - It found the average age at onset of natural menopause was around 48.94 years, with specific lifestyle and demographic factors influencing whether menopause occurred early or late.
  • - Key associations included that higher education, moderate meat consumption, and having more children generally led to later menopause, while smoking, being underweight, and a high activity level were linked to earlier menopause.
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  • * Researchers analyzed data from over 17,000 women and found that 7.54% had type 2 diabetes.
  • * Results indicated that women who experienced menopause later (≥53 years) were 1.21 times more likely to have diabetes compared to those who underwent menopause between 46-52 years.
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  • The study aimed to assess the links between sleep duration, snoring, and diabetes among different gender and menopausal status groups in rural China.
  • Researchers analyzed data from over 57,000 participants aged 30-79 using logistic regression to determine the odds of diabetes based on sleep patterns and snoring.
  • Results indicated a U-shaped relationship between sleep duration and diabetes risk in postmenopausal women, while snoring was associated with diabetes across all groups, impacted by factors like socioeconomic status and health behaviors.*
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  • In China, cigarette consumption has risen significantly since the 1980s, primarily affecting men, leading to increased cancer risks as shown in a large nationwide study.
  • The study followed over 500,000 participants for seven years and revealed that 68% of men were smokers, which significantly heightened their overall cancer risk, particularly for lung, liver, stomach, and esophageal cancers.
  • Smoking is responsible for about 435,000 new cancers annually in China, with approximately 23% of adult male cancers attributed to smoking, highlighting a serious public health concern.
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China is the largest producer and consumer of tobacco in the world. Consequently, the burden of tobacco-related diseases in China is enormous. Implementation of the World Health Organization Framework Convention on Tobacco Control (WHO FCTC) may lead to a significant reduction in tobacco-related morbidity and mortality both in China and globally.

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Objective: To explore the relationship between weekly alcohol drinking behavior and the prevalence of hypertension.

Methods: Data was collected in a Kadoorie study of chronic disease in Wuzhong district, Suzhou city of Jiangsu province, China. Data from the baseline survey was used to describe the status of alcohol drinking and the prevalence of hypertension among local residents.

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Background: Long-term use of antiplatelet agents, statins, beta-blockers and angiotensin-converting enzyme inhibitors are proven therapies for secondary prevention in acute coronary syndrome. However, little is known of physicians' opinion about their use in China.

Methods: In 2010, standard questionnaires were posted to chief cardiologists in 1397 geographically diverse and representative sample of tertiary and secondary hospitals in China, collecting information about their opinions on the recommended treatments for acute coronary syndrome.

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Objective: Seasonal variation in blood pressure had been observed in several studies on Western populations, but uncertainty remains about the strength of the relationship in other populations and the extent to which it was modified by other factors.

Methods: This study was based on cross-sectional data from the China Kadoorie Biobank study with 53 260 men and women from the Suzhou area involved. Linear regression model was used to analyze the association of blood pressure with outdoor temperature-overall and in various subgroups.

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Objective: This study investigated current use of ACEI/ARB among high risk patients with coronary heart disease (CHD) in China and factors affecting ACEI/ARB use in these patients.

Methods: This cross-sectional survey was performed between June to December 2007 and May to November 2009 in 51 hospitals from 14 cities. The characteristics of patients with established CHD were collected by electronic questionnaire.

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Background: Despite considerable improvements in the care of patients with cardiovascular disease in various populations over the last few decades, there are still limited data about long-term treatment patterns among patients with various atherosclerotic vascular conditions in China, especially the use of statin therapy.

Methods: Between June 2007 and October 2009, 16 860 patients aged 50 - 80 years with established history of atherosclerotic vascular disease (coronary heart disease (CHD), atherosclerotic cerebrovascular disease (CVD), or peripheral arterial disease (PAD)) from 51 hospitals in 14 cities of China were screened for a large randomized trial. Detailed information about current use of statins and various other treatments was recorded and analyzed by prior disease history, adjusting for various baseline characteristics.

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Background: Well designed randomized trials and meta-analyses have clearly shown that statins reduce the risk of major vascular events, including ischemic stroke, in a wide range of patients and their routine use is recommended for patients at an increased cardiovascular risk. Survivors of a first ischemic stroke are at a risk of recurrence and of other vascular events and statins are generally recommended to reduce this risk. This study investigated how widely statins were being used for such patients in China.

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Objective: To study the separate and combined effects of environment, lifestyle, physical characteristics, blood biomarkers and genetic factors on aetiology of major chronic diseases in adult Chinese.

Methods: China Kadoorie Biobank (CKB) is a large blood-based prospective cohort study. The baseline survey took place in 5 urban and 5 rural areas across China during 2004-2008, with collection of data through questionnaire, physical examination and blood samples.

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Article Synopsis
  • - The study examined statin use in high-risk patients with atherosclerotic cardiovascular diseases at major Chinese hospitals, involving 11,783 patients from 39 hospitals across 10 cities.
  • - Findings revealed that 59.6% of patients who needed statins were not prescribed the medication, and for those on statins, many had been on them for less time than they had a history of cardiovascular disease.
  • - The research concluded that there is significant underuse of statins in secondary prevention for these patients, highlighting a critical issue for healthcare providers and policymakers to address quickly.
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Background: The expression of genes encoding a number of pathogenetic pathways involved in colorectal cancer could potentially act as prognostic markers. Large prospective studies are required to establish their relevance to disease prognosis.

Methods: We investigated the relevance of 19 markers in 790 patients enrolled in a large randomised trial of 5-fluorouracil using immunohistochemistry and chromogenic in situ hybridisation.

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Objective: To investigate the degree and determinants of the use on statin among patients with atherosclerotic ischemic stroke in China.

Methods: In the context of an international multi-center clinical trial being undertaken in China, 5585 patients with atherosclerotic ischemic stroke were screened in 39 prestigious hospitals in 10 cities. The characteristics collected through electronic questionnaire were described and analyzed.

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  • The study aimed to understand the link between body mass index (BMI) and ischaemic heart disease (IHD) mortality in Chinese men with low average BMI levels.
  • A cohort of 220,000 men aged 40-79 was followed for 15 years, revealing a J-shaped relationship where higher BMI (above 20 kg/m²) significantly increased IHD mortality, while lower BMI showed a reverse association.
  • The findings suggest that while lower BMI correlates with decreased IHD risk within the normal range (20-25 kg/m²), this trend reverses at BMI levels below 20 kg/m².
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  • - The study aimed to analyze the link between smoking and esophageal cancer (EC) risk in China, using a comprehensive nationwide case-control approach during 1989-1991.
  • - It assessed 19,734 deceased male adults who died from EC and compared smoking histories with two control groups consisting of individuals with non-malignant diseases and spouses of women who passed away from various causes.
  • - Results showed smokers had significantly higher EC death rates compared to non-smokers across different urban and rural areas, highlighting a clear dose-response relationship with smoking.
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Liver cancer and liver cirrhosis are common causes of death in China, where chronic lifelong hepatitis B infection is a major cause of both diseases. To help determine whether smoking is a cofactor for the development of liver cancer, we ascertained retrospectively the smoking habits of 36,000 adults who had died from liver cancer (cases) and 17,000 who had died from cirrhosis (controls) in 24 Chinese cities and 74 rural counties. Calculations of the smoker vs.

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Aim: To investigate the effects of all-trans retinoic acid (ATRA) on metastasis and its related proteins in human gastric cancer cells in vivo and in vitro.

Methods: Gastric cancer cells, MGC80-3 and SGC-7901, were inoculated into spleen subcapsule of nude mice, respectively. Nude mice were administered with ATRA (0.

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To uncover the mechanisms relating to the anticancer effect of retinoic acids in gastric cancer cells, the mediation of activator protein-1 (AP-1) activity repression by retinoic acid receptors (RARs) was investigated. All-trans retinoic acid (ATRA) inhibited AP-1 activity in BGC-823 cells (RARalpha(+), RARbeta(+)), but not in MKN-45 cells (RARalpha(lo), RARbeta(-)). Transient transfection of RARbeta expression vector into MKN-45 cells significantly resulted in direct repression of AP-1 activity in a receptor concentration-dependent manner, and this could be strengthened by ATRA.

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