Association between exposure to metalworking fluid aerosols, occupational noise and chronic kidney disease: a cross-sectional study in China.

Background: Chronic kidney disease (CKD) carries a high public health burden yet little is known about the relationship between metalworking fluid (MWF) aerosols, occupational noise and CKD. We aimed to explore the relationship between occupational MWF aerosols, occupational noise and CKD.

Methods: A total of 2,738 machinists were sampled from three machining companies in Wuxi, China, in 2022.

Association between occupational noise and obesity: a retrospective cohort study in China.

Objectives: To determine the relationship between occupational noise, and obesity and body mass index (BMI) changes.

Methods: Baseline data were collected from participants (n = 1264) who were followed for 6 years in a retrospective study. The noise exposure level (L) was determined by equivalent continuous weighted sound pressure levels using the fixed-point surveillance method for noise monitoring.

Relationship between exposure to metalworking fluids and nonalcoholic fatty liver disease.

Objective: The relationship between metalworking fluids (MWFs) and nonalcoholic fatty liver disease (NAFLD) has not been previously explored. We aim to investigate the relationship between occupational exposure to MWFs and the prevalence of NAFLD and to determine the cumulative exposure threshold per day.

Methods: In 2020, 2079 employees were selected randomly from one computer numerical control machining factory in Wuxi for a questionnaire survey, and occupational health examinations were conducted at the affiliated branch of Wuxi Eighth People's Hospital.

A cohort study on the association between changing occupational stress, hair cortisol concentration, and hypertension.

Objective: To explore the relationship between changing occupational stress levels, hair cortisol concentration (HCC), and hypertension.

Methods: Baseline blood pressure of 2520 workers was measured in 2015. The Occupational Stress Inventory-Revised Edition (OSI-R) was used to assess changes in occupational stress.

Vessel density ratio: A novel approach to identify "culprit" coronary lesion by spiral computed tomography.

Background And Objective: We hypothesized that a "culprit" lesion in acute coronary syndrome (ACS) should have low overall vessel lumen and plaque density on multidetector computed tomography-assisted coronary angiography (MDCTA) because of lower calcification and the presence of occlusive thrombus. However, thrombi and calcification both can themselves blur the demarcation between vessel wall and lumen. If we calculated a "vessel density ratio" (VDR) obtained by measuring the mean density of contrast-enhancement within a region of interest (ROI), which includes the vessel wall, lumen, plaque, and thrombus, and comparing that with the aortic root mean density acting as a reference point, this ratio may be more convenient, standardized, and reproducible to test the feasibility of VDR in identifying "culprit" lesions in ACS.