Wenjun Ma
Biographic Data
| ID | 3635735 |
|---|---|
| NAME | Wenjun Ma |
| GIVEN NAMES | Wenjun |
| FAMILY NAME | Ma |
| SIGNATURE | MA W |
| AFFILIATIONS | Guangdong Provincial Center for Disease Control and Prevention |
| ORCID | 0000-0002-9266-4802 |
| VERIFIED | Yes |
| TOTAL WORKS | 51 |
| TOTAL CITATIONS | 93 |
| AUTHOR COUNT | 51 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2008 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
The trajectories of cardiometabolic multimorbidity associate with mortality risk
Background Cardiometabolic multimorbidity (CMM) prevalence has risen, but longitudinal evidence on trajectories and mortality links remains limited. Objective This study aimed to examine CMM trends and the impact of its statuses/trajectories on mortality in Guangdong, China. Design This is a cohort study. Setting Data were collected from the Guangdong Provincial adult chronic diseases and risk factors cohort (GDACRC). The follow-up data were coll…
Leaf morphology-δ13C synergy in drought response and G×E interactions in Toona sinensis
Toona sinensis is prized for its superior wood quality, ranking among the most important timber species. However, its growth and development has been severely constrained by persistent drought stress, which has become more frequent due to global climate change. Therefore, elucidating its drought response mechanisms and breeding high-yield, drought-resistant varieties are crucial for mitigating plantation productivity losses caused by global clima…
Quantitative evaluation and resource optimization strategy for ancient and notable trees conservation efficacy
To address the lack of a quantitative assessment framework for evaluating the conservation efficacy of ancient and notable trees, as well as the absence of a scientific basis for optimal resource allocation, this study developed an evaluation model based on the “Tree-Environment-Human” triad criterion framework. The model was applied to assess the conservation efficacy of 71,578 ancient and notable trees in Sichuan Province, and resource optimisa…
The temporal change of heat exposure and adaptation capacity in Chinese adults from 1994 to 2023
Background Studies have found decreased heat effect and increased minimum mortality temperature (MMT) during the past decades. However, it is unclear whether heat exposure or temperature adaptation play an important role in this change. Methods This is a cross-sectional study. Data were collected from 3,094 respondents aged 31–64 years old based on online questionnaire. The Cochran-Armitage test for trend and Cochran–Mantel–Haenszel (CMH) test we…
Mahonia bealei (Fort.) Carr. Leaf extract modulates the TLR2/MyD88/NF-κB signaling pathway to inhibit PGN-induced inflammation in RAW264.7 cells
The present study showed that MBE effectively inhibited PGN-induced inflammation and ameliorated cell injury in RAW264.7 cells. This may be attributed to its inhibition of the TLR/MyD88/NF-κB pathway, which further regulates the release of downstream related inflammatory factors and exerts anti-inflammatory effects. These findings also suggest the potential of M. bealei as a natural drug for the treatment of inflammation-related diseases
The individual and joint effects of long-term exposure to temperature and relative humidity on blood pressure
The associations between long-term co-exposure to temperature and RH and BP exhibited a U-shaped curve. Individuals under 60 years old, females, and hypertensive patients not taking antihypertensive medication were more susceptible to dry-cold events
The cost of antenatal care in Beijing
There are high proportion of direct medical costs. It is suggested that reducing the lost wages of pregnant women and caregivers by increasing leaves for them, and controlling complications to alleviate the financial burden of pregnancy
Nationwide analysis of the association between nature park visits and adult asthma risk in urbanized neighborhoods
The work challenges faced by primary healthcare workers in Guangzhou during the Covid-19 pandemic prevention and control period of 2021–2022
Background: Primary healthcare workers in China were vital in controlling COVID-19, facing unprecedented challenges due to the pandemic's suddenness and transmissibility. This paper analyzed their work in Guangzhou, highlighting key difficulties in past epidemic control efforts. Methods: Semi-structured qualitative interviews were conducted with selected primary healthcare workers in Guangzhou City and audio-recorded until saturation of themes wa…
Bridging the Implementation Gap
As urbanization continues to grow, urban climate issues such as urban heat island effect have emerged. The “implementation gap” refers to the significant difference between the number of effective methods available to tackle these problems and the few cities where they have been implemented to some extent. Contrary to most literature, our hypothesis is that this gap is due to the research not being structured in a way that enables effective decis…
Multilayer factors associated with excess all-cause mortality during the omicron and non-omicron waves of the Covid-19 pandemic
Our findings indicate that the COVID-19 Omicron wave was associated with lower excess mortality compared to the non-Omicron wave. This study's analysis of the factors influencing excess deaths suggests that effective strategies to mitigate all-cause mortality include improving economic conditions, promoting widespread vaccination, and enhancing overall population health. Implementing these measures could significantly reduce the burden of COVID-1…
Gallbladder cancer incidence and mortality rate trends in China
The overall standardized gallbladder cancer incidence and mortality rates in China are trending downward, but not sufficiently so. Proper living and eating habits should be encouraged while exploring the establishment of long-term, standardized gallbladder cancer screening programs
Job burnout and its influencing factors among primary healthcare workers during the Covid-19 epidemic in Guangzhou, China, 2021–2022
The detection rate of job burnout among primary healthcare workers in Guangzhou was relatively high during the period of COVID-19. When there is another sudden major epidemic, the managers of institutions can focus on and deal with the problems related to the operation and management of institutions such as personnel management, materials and vehicles, subsidies and compensation, humanistic care, and superior management, so as to provide logistic…
Piper longum L. ameliorates gout through the Mapk/PI3K-AKT pathway
Min pedestrian distance life circle and sustainable community governance in Chinese metropolitan cities
Urban planning has shifted from “land-oriented” to “human-oriented” and metropolitan cities start to focus on 15-min life circle community planning during recent years. As multiple dimensions of living service facilities are included, proactive supervision and real-time evaluation are essential in the governance and spatial planning of large cities, referring to urban physical examination. This study proposes a community life circle diagnosis sys…
Prevalence of insulin resistance in Chinese solar greenhouse and field workers
Evidence suggests that agricultural workers are at higher risk of insulin resistance (IR), but few studies have investigated IR in solar greenhouse workers, who are exposed to higher concentrations of agricultural risk factors than traditional agricultural workers. A prevalence study was conducted in a greenhouse vegetable farm in China. In total, 948 participants were enrolled in this study. Among them, 721 participants were allocated to the gre…
Association of multi-metals with the risk of hypertension and the interaction with obesity
The combined effect of four metals (manganese, arsenic, cadmium and lead) were associated with the prevalence of hypertension. Potential interaction effects of cadmium, lead and obesity on hypertension risk may exist. Further cohort studies in larger population are needed to clarify these findings
Evaluation of Chlamydia trachomatis screening from the perspective of health economics
Non-Fatal Drowning Risk Prediction Based on Stacking Ensemble Algorithm
Drowning is a major public health problem and a leading cause of death in children living in developing countries. We seek better machine learning (ML) algorithms to provide a novel risk-assessment insight on non-fatal drowning prediction. The data on non-fatal drowning were collected in Qingyuan city, Guangdong Province, China. We developed four ML models to predict the non-fatal drowning risk, including a logistic regression model (LR), random …
Spatial–Temporal Correlations between Soil pH and NPP of Grassland Ecosystems in the Yellow River Source Area, China
In recent years, ecological concerns such as vegetation destruction, permafrost deterioration, and river drying have been paid much more attention to on the Yellow River Basin in China. Soil pH is regarded to be the fundamental variable among soil properties for vegetation growth, while net primary productivity (NPP) is also an essential indicator to reflect the healthy growth of vegetation. Due to the limitation of on-site samples, the spatial−t…
Temperature Change between Neighboring Days Contributes to Years of Life Lost per Death from Respiratory Disease
The results indicated that more attention should be given to temperature change, and more public health policies should be implemented to protect public health
The Mediating Role of Placental Weight Change in the Association Between Prenatal Exposure to Thallium and Birth Weight
Background: Previous studies have demonstrated the embryotoxicity and fetotoxicity of thallium (Tl). However, the effects of prenatal exposure to Tl on birth weight and placental weight and the mediating role of placental weight in the association of Tl with birth weight remain unclear. Methods: We recruited 2,748 participants from the ongoing Prenatal Environment and Offspring Health Cohort (PEOH Cohort) study, which was initiated in 2016 in Gua…
Life loss per death of respiratory disease attributable to non-optimal temperature
Many studies have linked temperature with respiratory deaths, but epidemiological evidence of temperature-attributable years of life lost (YLL) from respiratory diseases is limited. Daily respiratory YLL rates were calculated using mortality data from 364 locations of China during 2006–2017, and meteorological data were collected for the same period. First, the distributed lag non-linear model (DLNM) was applied to estimate specific temperature-r…
Quantifying spatial associations between effective green spaces and cardiovascular and cerebrovascular diseases by applying volunteered geo-referenced data
Among the top public health risks, cardiovascular and cerebrovascular diseases cause more than 1 million deaths annually globally. Due to the calming effect of green spaces and their ability to trap air pollutants, urban green spaces are considered have close associations with cardiovascular and cerebrovascular diseases. However, ignoring the spatial heterogeneity of different urban green space types and considering only the configuration or comp…
The relationship between ambient temperature and fasting plasma glucose, temperature-adjusted type 2 diabetes prevalence and control rate
Temperature was negatively associated with FPG for NFG and known T2DM subgroups, while their association was U-shape for newly detected T2DM patients. Hence, the temperature-adjusted T2DM prevalence show a dip/peak pattern and T2DM control rate display a rising trend when temperature increase. Our findings suggest temperature should be considered in T2DM clinic management and epidemiological survey
Government intervention in city development of China
Epidemic Forest
Traditional epidemic models of communicable diseases focus on the temporal dimension. We propose a framework for the epidemic forest approach to spatializing epidemic modeling. An epidemic forest is formed by epidemic trees, each using the tree structure to represent an epidemic starting from a primary case. Each node on the tree represents an individual case, and each link represents a parent–child transmission linkage and can be modeled with th…
The relative importance of soil crust and slope angle in runoff and soil loss
Government intervention in city development of China
A Multiple Indicators Multiple Cause (MIMIC) Model of Respiratory Health and Household Factors in Chinese Children
The spatial distribution of health vulnerability to heat waves in Guangdong Province, China
BACKGROUND: International literature has illustrated that the health impacts of heat waves vary according to differences in the spatial variability of high temperatures and the social and economic characteristics of populations and communities. However, to date there have been few studies that quantitatively assess the health vulnerability to heat waves in China. OBJECTIVES: To assess the spatial distribution of health vulnerability to heat waves…
Disease Burden from Hepatitis B Virus Infection in Guangdong Province, China
HBV infection is a great medical challenge as well as a significant economic burden to Guangdong Province. The results suggest that substantial health benefits could be gained by extending effective public health and clinical interventions to reduce HBV infection in Guangdong Province
The diminishing socioeconomic disparity in obesity in a Chinese population with rapid economic development
The impact of gradient in food attainment and occupational physical activity across the SES levels may wear off with further economic development, while factors such as health awareness, diet pattern and leisure activity may become increasingly important in driving the disparity. Our findings suggest that health education should focus on the disadvantaged populations on health awareness for adopting healthier diet pattern and increasing physical …
Intensive low-glycaemic-load dietary intervention for the management of glycaemia and serum lipids among women with gestational diabetes
Objective The present study aimed to compare the effects of a general dietary intervention and an intervention with low glycaemic load (GL) on glycaemic control, blood lipid metabolism and pregnancy outcomes in women with gestational diabetes mellitus. Design Participants were randomly assigned to two groups, receiving either an individualized general dietary intervention (Control group) or an intensive low-GL intervention (Low-GL group) every tw…
Tempo-Spatial Variations of Ambient Ozone-Mortality Associations in the USA
Although the health effects of ambient ozone have been widely assessed, their tempo-spatial variations remain unclear. We selected 20 communities (ten each from southern and northern USA) based on the US National Morbidity, Mortality, and Air Pollution Study (NMMAPS) dataset. A generalized linear model (GLM) was used to estimate the season-specific association between each 10 ppb (lag0-2 day average) increment in daily 8 h maximum ozone concentra…
Perceptions of Health Co-Benefits in Relation to Greenhouse Gas Emission Reductions
Limited information is available on the perceptions of stakeholders concerning the health co-benefits of greenhouse gas (GHG) emission reductions. The purpose of this study was to investigate the perceptions of urban residents on the health co-benefits involving GHG abatement and related influencing factors in three cities in China. Beijing, Ningbo and Guangzhou were selected for this survey. Participants were recruited from randomly chosen commi…
Individual and Interactive Effects of Socio-Ecological Factors on Dengue Fever at Fine Spatial Scale
Background : Large spatial heterogeneity was observed in the dengue fever outbreak in Guangzhou in 2014, however, the underlying reasons remain unknown. We examined whether socio-ecological factors affected the spatial distribution and their interactive effects. Methods : Moran's I was applied to first examine the spatial cluster of dengue fever in Guangzhou. Nine socio-ecological factors were chosen to represent the urbanization level, economy, …
Estimating the Excess Mortality Risk during Two Red Alert Periods in Beijing, China
The magnitude of excess mortality risk due to exposures to heavy air pollution during the red alert periods in Beijing remains unknown. A health impact assessment tool combined with the PM 2.5 -mortality relationship was applied to estimate the number of excess deaths due to high air pollution exposure during two red alert periods in Beijing, China in December 2015. Daily PM 2.5 concentration increased from 80.2 μg/m3 to 159.8 μg/m3 during the fi…
Positive Rates and Factors Associated with Abnormal Lung Function of Greenhouse Workers in China
Since the number of greenhouse workers are increasing in China, this observational cross-sectional study was designed to evaluate lung function and discuss the potential risk factors, to provide evidence in the surveillance of greenhouse workers' health. 678 greenhouse workers in Gansu Province, China were enrolled. A questionnaire which included demographic and occupational information was used. Vital capacity (VC), forced vital capacity (FVC), …
Biomarkers for Pulmonary Inflammation and Fibrosis and Lung Ventilation Function in Chinese Occupational Refractory Ceramic Fibers-Exposed Workers
Refractory ceramic fibers (RCFs) can cause adverse health effects on workers' respiratory system, yet no proper biomarkers have been used to detect early pulmonary injury of RCFs-exposed workers. This study assessed the levels of two biomarkers that are related to respiratory injury in RCFs-exposed workers, and explored their relations with lung function. The exposure levels of total dust and respirable fibers were measured simultaneously in RCFs…
The Interaction between Ambient PM10 and NO2 on Mortality in Guangzhou, China
Air pollution is now a significant environmental issue in China. To better understand the health impacts of ambient air pollution, this study investigated the potential interaction between PM 10 and NO2 on mortality in Guangzhou, China. Time series data of daily non-accidental mortality and concentrations of PM 10 and NO2 from 2006 to 2010 were collected. Based on generalized additive model, we developed two models (bivariate model and stratified…
The Association of Domestic Incense Burning with Hypertension and Blood Pressure in Guangdong, China
Domestic incense burning is a common activity in China. Although it generates serious air pollution and has been linked to various health outcomes, it remains unknown whether it is associated with blood pressure and hypertension. A community-based survey including 1153 hypertensive subjects and 4432 normotensive participants in Guangdong (China) was used to examine this question. Two-level logistic regression was used to estimate the odds ratio (…
Early rigorous control interventions can largely reduce dengue outbreak magnitude
This study suggests that early implementation of rigorous dengue interventions can effectively reduce the epidemic size and shorten the epidemic duration
The Former Quarries in Vapolicella-Architectural Perspectives between Landscape Re-Use and Local Identity
Considering the recent studies focused on the landscape design in the marginal areas, this paper deepens the former quarries in Valpolicella, a scenic area in the nearby of Verona, Italy, conceived as a remarkable case-study to investigate the correlations between abandon sites and local identities. Assuming the perspective of landscape architecture's studies, the paper aims to highlight topics and relevant issues related to recycling practices f…
Theories and Methods of Urban Development Programming
Urban development programming counted one of the major important stages of planning and design. Urban projects process still has not enough consideration to urban development programming stage. This step sometimes missed in urban development projects or confused with tasks of urban development planning. It has been slow to achieve full existence. Methodology and strategies of urban development do not set clear the limits to the mission of urban d…
Agricultural Productive Public Space
The problems affecting major cities are expected to increase under the pressure exerted by climate change, population growth and the incremental nature of urban consumption. Therefore, it becomes necessary to increase urban sustainability and resilience in a way that improves the urban landscape and the lives of urban communities in the aspects of economic income, food vulnerability and the limited access to environmental justice. This study lays…
Modification Effects of Population Expansion, Ageing, and Adaptation on Heat-Related Mortality Risks Under Different Climate Change Scenarios in Guangzhou, China
(1) Background: Although the health effects of future climate change have been examined in previous studies, few have considered additive impacts of population expansion, ageing, and adaptation. We aimed to quantify the future heat-related years of life lost ( YLLs ) under different Representative Concentration Pathways (RCP) scenarios and global-scale General Circulation Models (GCMs), and further to examine relative contributions of population …
Association between dietary acid load and the risk of hypertension among adults from South China
It was highlighted that in the original article [1] the data on categorical variables was wrongly arranged in Table 1 and there was an incorrect statement in the fourth paragraph of the Discussion section
Epidemic Forest
Traditional epidemic models of communicable diseases focus on the temporal dimension. We propose a framework for the epidemic forest approach to spatializing epidemic modeling. An epidemic forest is formed by epidemic trees, each using the tree structure to represent an epidemic starting from a primary case. Each node on the tree represents an individual case, and each link represents a parent–child transmission linkage and can be modeled with th…
Detecting the net effect of flooding on infectious diarrheal disease in Anhui Province, China
Though a number of studies have shown positive relationships between flooding events and infectious diarrhea, there is a paucity of rigorous evidence regarding the net effect of flooding on diarrhea incidence, controlling for existing pre-trends and meteorological confounders. The study treats the 2016 catastrophic flood event in Anhui Province, China as a natural experiment using a difference-in-differences design with propensity score matching …
Developing a novel indicator to estimate years of life lost attributable to temperature variability between neighboring days
The evidence is limited for the mortality burden of temperature variability between neighboring days. This study developed a novel indicator to measure temperature variability between neighboring days and quantify its mortality burden. Daily mortality and meteorological data during 2006–2017 from 364 locations across China were collected. We first employed a distributed lag non-linear model and multivariable meta-analysis to investigate the assoc…
Exploring spatiotemporal variation characteristics of exceedance air pollution risk using social media big data
Air pollution in the form of PM 2.5 decreases life expectancy considering its contribution to morbidity and mortality. Therefore, scientific and accurate PM 2.5 exposure risk assessment is essential. However, the considering daily/hourly mean PM 2.5 concentration and overlooking population mobility in exposure risk assessments result in underestimation of its adverse effects. Thus, using social media data and exceedance PM 2.5 concentration, two …
Medicine (35 works) · Environmental health (26 works) · Geography (22 works) · Internal Medicine (19 works) · Climate Change and Health Impacts (18 works) · China (16 works) · Air Quality and Health Impacts (14 works) · Demography (14 works) · Demography (13 works) · Population (12 works)