[Expert recommendations on mass population vaccination].

Mass vaccination represents a highly effective strategy for accelerating disease control while simultaneously reducing incidence and mortality rates. By developing comprehensive plans and standards for mass vaccination, it is feasible to optimize resource allocation and swiftly enhance vaccination coverage, thereby preventing, controlling, or interrupting outbreaks or epidemics of specific infectious diseases. To standardize the mass vaccination process and establish a population immunity barrier in an orderly, efficient, and safe manner, a panel of experts was convened to develop the Recommendations on Mass Vaccination.

Long-term exposure to PM and its constituents and visual impairment in schoolchildren: A population-based survey in Guangdong province, China.

Background: Exposure to fine particulate matter (PM) has been linked to visual impairment. Nevertheless, evidence associating PM constituents with visual impairment in schoolchildren is sparse.

Objectives: To explore the effects of long-term exposure to PM and its constituents on visual impairment.

Effects of population aging on quality of life and disease burden: a population-based study.

Background: As population aging intensifies, it becomes increasingly important to elucidate the casual relationship between aging and changes in population health. Therefore, our study proposed to develop a systematic attribution framework to comprehensively evaluate the health impacts of population aging.

Methods: We used health-adjusted life expectancy (HALE) to measure quality of life and disability-adjusted life years (DALY) to quantify the burden of disease for the population of Guangzhou.

Small mammals and associated infections in China: a systematic review and spatial modelling analysis.

Background: As natural reservoirs of diverse pathogens, small mammals are considered a key interface for guarding public health due to their wide geographic distribution, high density and frequent interaction with humans.

Methods: All formally recorded natural occurrences of small mammals (Order: Rodentia, Eulipotyphla, Lagomorpha, and Scandentia) and their associated microbial infections in China were searched in the English and Chinese literature spanning from 1950 to 2021 and geolocated. Machine learning models were applied to determine ecological drivers for the distributions of 45 major small mammal species and two common rodent-borne diseases (RBDs), and model-predicted potential risk locations were mapped.

Structural equation modeling of dietary patterns and association with vitamin D levels in children aged 9-16 years in Guangzhou, China.

Background: Vitamin D deficiency and insufficiency represent critical public health concerns on a global scale. Due to the increase in indoor activities, the role of dietary intake of vitamin D has become increasingly prominent. However, previous studies have focused solely on a single food item.

The impact of small food workshops management regulations on aflatoxin B in home-made peanut oil and the liver function of high-consumption area residents: an interrupted time series study in Guangzhou, China.

Background: Aflatoxin B (AFB), a potent carcinogen produced by species, is a prevalent contaminant in oil crops, with prolonged exposure associated with liver damage. Home-made peanut oil (HMPO) produced by small workshops in Guangzhou is heavily contaminated with AFB. Despite the enactment of the Small Food Workshops Management Regulations (SFWMR), no quantitative assessment has been conducted regarding its impact on food contamination and public health.

Closer adult child-parent relations the stronger the vaccine hesitancy: A cross-sectional study of adult Children's attitudes toward pneumococcal vaccination of elderly parents and its determinants in Guangzhou, China.

Pneumococcal disease (PD) has a serious effect on older people aged 60 years and above. However, pneumococcal vaccination rates for older people in China remain low. This study aimed to explore adult children's perspectives on the vaccination of their parents and to examine the determinants of vaccine hesitancy.

Mapping environmental noise of Guangzhou based on land use regression models.

Background: Environmental noise seriously affects people's health and life quality, but there is a scarcity of noise exposure data in metropolitan cities and at nighttime, especially in developing countries.

Objective: This study aimed to assess the environmental noise level by land use regression (LUR) models and create daytime and nighttime noise maps with high-resolution of Guangzhou municipality.

Methods: A total of 100 monitoring sites were randomly selected according to population density.

A Couple-Based Intervention for Chinese Older Adults With Type 2 Diabetes: A Randomized Clinical Trial.

Importance: Spousal involvement in diabetes care is recommended theoretically, but effectiveness in clinical settings and among diverse populations is unclear.

Objective: To test the effect of a couple-based intervention among Chinese older patients with type 2 diabetes and their spouses.

Design, Setting, And Participants: This multicenter randomized clinical trial comprised 2 arms: a couple-based intervention arm and an individual-based control.

Effects of fine particulate matter and its chemical constituents on influenza-like illness in Guangzhou, China.

Background: Although the link between fine particulate matter (PM) and influenza-like illness (ILI) is well established, the effect of the chemical constituents of PM on ILI remains unclear. This study aims to explore this effect in Guangzhou, China.

Methods: Daily data on ILI cases, PM levels, and specific PM constituents (black carbon [BC], chlorine [Cl], ammonia [NH], nitrate [NO], and sulfate [SO]) in Guangzhou, China, were collected for the period of 2014-2019.

miR-451a and miR-486-5p: biomarkers for benzene-induced hematotoxicity.

The hematopoietic system is the primary target of benzene exposure. Whether peripheral blood miRNA can serve as sensitive biomarkers for benzene-induced hematopoietic damage has attracted considerable attention. This study focuses on exploring the role of miR-451a and miR-486-5p in benzene-induced erythroid damage and assessing their potential as biomarkers of benzene-induced hematotoxicity.

Development of QuEChERS based on the Z-Sep+and DLLME method for analysis of PBDEs in chicken eggs by GC-MS/MS.

A sensitive, straightforward, and environmentally sustainable method was developed and validated for the quantification of 13 PBDEs in chicken eggs using gas chromatography coupled with triple quadrupole mass spectrometry (GC-MS/MS). The QuEChERS approach, combined with dispersive liquid-liquid microextraction (DLLME), was applied for sample preparation. Egg samples were extracted with acetonitrile and purified using Z-Sep + adsorbent.

The involvement of nicotinate and nicotinamide metabolism pathway in attenuating benzene-induced mouse hematotoxicity.

Benzene exposure has been linked to various adverse health effects. However, the effective strategy for prevention or treatment of benzene-induced hematotoxicity remains unsolved. We previously administrated hepatocyte-specific deletion of Ppp2r1a gene (encoding PP2A Aα subunit) mice with benzene via inhalation for 28 days, and found homozygote (HO) mice exhibited alleviative hematotoxicity compared with wild type (WT) mice.

The role of we-ness in Chinese serodiscordant male couples' coping with HIV: a mixed-methods study.

Men who have sex with men represent a significant portion of new HIV diagnoses in China. Guided by the systemic transactional model and interdependence theory, we examined the mediating role of 'we-ness' between dyadic coping and HIV-specific support among Chinese serodiscordant male couples, and how cultural interdependence shapes this we-ness. We employed a mixed-methods design which included a cross-sectional survey of 234 couples and qualitative interviews with 20 couples.

Metabolomic profiling identifies signatures and biomarkers linking air pollution to dementia risk: A prospective cohort study.

Exposure to air pollution has been associated with increased dementia. However, it remains unknown what specific metabolic mechanisms play a role in this relationship. We included 192,300 dementia-free participants from the UK Biobank cohort study.

Improving the construction and prediction strategy of the Air Quality Health Index (AQHI) using machine learning: A case study in Guangzhou, China.

Effectively capturing the risk of air pollution and informing residents is vital to public health. The widely used Air Quality Index (AQI) has been criticized for failing to accurately represent the non-threshold linear relationship between air pollution and health outcomes. Although the Air Quality Health Index (AQHI) was developed to address these limitations, it lacks comprehensive construction criteria.

Serum Pyridoxal 5'-Phosphate and Pyridoxic Acid Ratio Index with Prognosis of Colorectal Cancer: A Prospective Cohort Study.

Background: Studies on the association between serum vitamin B status and colorectal cancer prognosis are limited and have yielded inconsistent results. This study investigated the association of pyridoxal 5'-phosphate (PLP) and pyridoxic acid ratio (PAr) index with colorectal cancer survival.

Methods: A total of 1286 colorectal cancer patients diagnosed since 2010 were selected from the Guangdong Colorectal Cancer Cohort study.

The work challenges faced by primary healthcare workers in Guangzhou during the COVID-19 pandemic prevention and control period of 2021-2022: a qualitative study.

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 was reached.

The Decreased Proliferation Capacity of Cardiomyocytes Induced By Androsterone Is Mediated By the Interactions Between Androgen Receptor and Retinoblastoma Protein.

Our previous study has demonstrated that the decline in cardiomyocytes proliferation capacity induced by maternal androgen excess was mainly attributed to the accumulation of androsterone in the heart. However, the underlying mechanism by which androsterone inhibits cardiomyocytes proliferation remains unknown. In this study, pregnant mice were injected subcutaneously daily with dihydrotestosterone (DHT) from gestational day (GD) 16.

Exploration of PrEP/PEP service delivery model in China: A pilot in eastern, central and western region.

Since 2017, China has started a pilot exploration of pre-exposure prophylaxis (PrEP)/post-exposure prophylaxis (PEP) service aiming for human immunodeficiency virus (HIV) control. Efforts to summarize the pilot experience and sort out the gaps in service provision must be prioritized. In June-October, 2023, three provincial capital cities with two years of PrEP/PEP pilot experience in eastern, central and western China were chosen.

Optimal QT Correction Formula for Older Chinese: Guangzhou Biobank Cohort Study.

Introduction: To identify the optimal QT correction formula for generating corrected QT (QTc) and cutoffs for prolonged QTc, and examine the associations with mortality and cardiovascular disease (CVD) in older Chinese.

Methods: A prospective study included 24,611 Chinese aged 50+ years and without CVD at 2003-2008 from Guangzhou Biobank Cohort Study. QT interval was corrected by Bazett, Fridericia, Framingham and Hodges formulas.