Correction to "Rapamycin Inhibits Osteoclastogenesis and Prevents LPS-Induced Alveolar Bone Loss by Oxidative Stress Suppression".

[This corrects the article DOI: 10.1021/acsomega.3c01289.

Rapamycin Inhibits Osteoclastogenesis and Prevents LPS-Induced Alveolar Bone Loss by Oxidative Stress Suppression.

Periodontitis is a progressive inflammatory skeletal disease characterized by periodontal tissue destruction, alveolar bone resorption, and tooth loss. Chronic inflammatory response and excessive osteoclastogenesis play essential roles in periodontitis progression. Unfortunately, the pathogenesis that contributes to periodontitis remains unclear.

Development of Job Burden-capital Model of Occupational Stress: An Exploratory Study.

This study proposes a new framework as job burden-capital model for comprehensive assessment on occupational stress. 1618 valid samples were recruited from electronic manufacturing service industry in Hunan province by self-rated questionnaires after written consent. Structural equation model analysis was employed to verify the model by the data collected.

Long-term exposure to diesel engine exhaust induced lung function decline in a cross sectional study.

To clarify the effects of lung function following exposure to diesel engine exhaust (DEE), we recruited 137 diesel engine testing workers exposed to DEE and 127 non-DEE-exposed workers as study subjects. We performed lung function tests and measured cytokinesis-block micronucleus (CBMN) cytome index and levels of urinary polycyclic aromatic hydrocarbons (PAHs) metabolites. There was a significant decrease of forced expiratory volume in 1 second (FEV), ratio of forced expiratory volume in 1 second to forced vital capacity (FEV/ FVC), maximal mid expiratory flow curve (MMF), forced expiratory flow at 50% of FVC (FEF), and forced expiratory flow at 75% of FVC (FEF) in the DEE-exposed workers than non-DEE-exposed workers (all p<0.

How Work Organization Affects the Prevalence of WMSDs: A Case-control Study.

Objective: In this study, we aimed at exploring the association between work-related musculoskeletal disorders (WMSDs) and work organization based on a case-control study.

Methods: A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts.

Establishment of a reference value for chromium in the blood for biological monitoring among occupational chromium workers.

The concentration of chromium in the blood (CrB) has been confirmed as a biomarker for occupational chromium exposure, but its biological exposure indices (BEIs) are still unclear, so we collected data from the years 2006 and 2008 (Shandong Province, China) to analyze the relationship between the concentration of chromium in the air (CrA) of the workplaces and CrB to establish a reference value of CrB for biological monitoring of occupational workers. The levels of the indicators for nasal injury, kidney (β2 microglobulin (β2-MG)), and genetic damages (8-hydroxy-deoxyguanosine (8-OHdG) and micronucleus (MN)) were measured in all subjects of the year 2011 (Henan Province, China) to verify the protective effect in this reference value of CrB. Compared with the control groups, the concentrations of CrA and CrB in chromium exposed groups were significantly higher (P < 0.

Biomarkers for lung epithelium injury in occupational hexavalent chromium-exposed workers.

Objective: To evaluate whether Club (Clara) cell protein (CC16) and surfactant-associated protein D (SP-D) can be used as biomarkers for lung injury caused by chromium exposure.

Methods: The concentrations of chromium in the air (CrA), chromium in the blood (CrB), lung function, CC16, SP-D, tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) were detected in 91 chromium-exposed workers and 38 controls.

Results: In chromium-exposed group, the levels of CrA, CrB, SP-D, TNF-α, and IL-6 were significantly higher, whereas forced expiratory volume in one second (FEV1), FEV1/FVC, maximal expiratory flow (MEF), maximum ventilation volume (MVV), CC16, and CC16/SP-D were lower.

Co-effect of Demand-control-support model and effort-reward imbalance model on depression risk estimation in humans: findings from Henan Province of China.

Objective: To investigate the co-effect of Demand-control-support (DCS) model and Effort-reward Imbalance (ERI) model on the risk estimation of depression in humans in comparison with the effects when they are used respectively.

Methods: A total of 3 632 males and 1 706 females from 13 factories and companies in Henan province were recruited in this cross-sectional study. Perceived job stress was evaluated with the Job Content Questionnaire and Effort-Reward Imbalance Questionnaire (Chinese version).

[Evidence-based study of chromate exposed workers' health surveillance indexes].

Objective: The health surveillance proposal for chromate exposed workers was provided and analyzed on the evidence-based study and then to be improved.

Method: Firstly, the related literatures were searched about liver damage, micronuclei, urinary chromium and hexavalent chromium exposure in Evidence Based Medicine Reviews such as Cochran library, OVID Medline, Web of knowledge in December 2011; and then, these literatures were reviewed in according to inclusion and exclusion criteria; 22 articles totally were retrieved, evaluated and classified in according to the grading standard by Oxford Centre for Evidence-based Medicine.Finally, field epidemiological investigation was further adopted to confirm the efficiency and feasibility of this proposal, combined with cost-effectiveness analysis:the ratio of total cost divided survival years was used to express the cost-effectiveness.

Association of folate deficiency and selected tumor marker concentrations in long-term hexavalent chromium exposed population.

Both hexavalent chromium [Cr (VI)] exposure and folate deficiency have been associated with increased cancer risks. Our previous studies have found folate deficiency in Cr (VI) exposed population. Here the relationship between some tumor markers and folate status in long-term Cr (VI) exposure was investigated carefully to show the multiple aspects of Cr (VI) carcinogenesis.

[Distribution of chromium in whole blood and urine among general population in China between year 2009 and 2010].

Objective: To evaluate the chromium (Cr) levels in blood and urine among general population in China between 2009 and 2010, and thereby to analyze its prevalent features.

Methods: From year 2009 to 2010, a total of 11 983 subjects of general population aged between 6 and 60 year-old were recruited from 24 districts in 8 provinces in eastern, central and western China mainland, by cluster random sampling method. The information about their living environment and health status were collected by questionnaire, and 11 983 blood samples and 11 853 urine samples were also collected.

Risk factors of low back pain among the Chinese occupational population: a case-control study.

Objective: To explore the risk factors of low back pain among the Chinese occupational population in several major industries.

Methods: A total of 7200 subjects (3600 cases and 3600 controls) were randomly sampled from a cross-sectional study, and they were investigated for individual and occupational factors of low back pain. The potential risk factors were first selected by using chi-square tests.

[The epidemiological characteristics and correlated factors of daily hassles for thermal power plant workers].

Objective: This study aimed to investigate the epidemiological characteristics and correlated factors of daily hassles among thermal power plant workers.

Methods: A mass screening of daily hassles and correlated factors was conducted on 498 workers from a thermal power plant in Zhengzhou in July, 2008. The questionnaires included Daily Hassles Questionnaires, Work Roles Questionnaires, Job Content Questionnaires (Chinese version), Effort-Reward Imbalance (Chinese version), Work Locus of Control Scale and Type A Behavior Scale, with content covering demographic characters and occupational stress correlated factors among subjects.

[The rervising of biological exposure index for carbon disulfide exposuring].

Objective: To study the biological exposure index of carbon disulfide in China.

Methods: High-performance liquid chromatography (HPLC) was used to detect the levels of 2-thiothiazolidine-4-carboxylic acid (TTCA) in the urine of the workers after working shift end, Gas chromatography was used to detect the concentrations of the carbon disulfide in the workplace air. The relationship between the urine TTCA levels and the concentrations of the carbon disulfide was analyzed, the biological exposure index and judgement result from PC-TWA were compared.

[The optimization of 2-thiothiazolidine-4-carboxylic acid back extraction in urine and determination by HPLC].

Objective: Establishment of determination method of 2-thiothiazolidine-4-carboxylic acid (TTCA) in urine with HPLC.

Methods: A volume of 0.5 ml hydrochloric acid (2 mol/L) and 0.

[The improvement of determination method of carbon disulfide in workplace air with gas chromatography].

Objective: Establishment of determination method of carbon disulfide in charcoal tube with low toxicity solvents desorption-gas chromatography.

Methods: Four types of solvent with low toxicity are applied respectively as substitution of benzene to desorb the carbon disulfide in samples of charcoal tube. The signal strength and desorption efficiency of the detector are compared by using different solvents.

[Carbon disulfide exposure level of workers in a chemical fiber industry].

Objective: To investigate the exposure levels of carbon disulfide (CS(2)) for a chemical fiber industry.

Methods: The concentration of CS(2) was monitored in representative workshops and types of work, and the datas of that over the years were collected.

Results: The short-term exposure concentration of CS(2) about 80% of the type of work was less than or equal to 10 mg/m(3), which of more than 90% was less than or equal to 20 mg/m(3).

[Effects of carbon disulfide on cardiovascular system of workers occupationally exposed to carbon disulfide].

Objective: To study the effects of long-term exposure to carbon disulfide (SC(2)) on cardiovascular system of workers.

Methods: The concentrations of CS(2) were detected in the representative workshops with different exposure levels. The indicators related to cardiovascular system were tested in 633 workers occupationally exposed to CS(2), which included blood pressure, electrocardiogram, blood routine (blood RT), cholesterol (TCHO), triglyceride (TG) and so on.

[The assessment of reliability and validity of musculoskeletal questionnaire].

Objective: To evaluate the reliability and validity of musculoskeletal questionnaire.

Methods: A self-administered modified musculoskeletal questionnaire was used to investigate 12 098 workers from eight occupations, i.e.

[Effect of occupational combined exposure of chromium and iron on erythrocyte metabolism].

Objective: To investigate the effect of combined occupational exposure of chromium and iron on erythrocyte metabolism, and the possible mechanism.

Methods: A total of 115 chromate production workers were selected in a chemical factory of Jinan as exposure group, Dec, 2008, and 60 healthy residents from a community which was far away from the factory were enrolled as control group. Environmental concentrations of chromium and iron were collected by filter membrane sampling and determined.