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Liu L.,Peking University | Chen S.G.,Foshan Institute of Occupational Disease Prevention and Control | Tang S.C.,Beijing Municipal Institute of Labour Protection | Wang S.,Peking University | And 5 more authors.
Biomedical and Environmental Sciences | Year: 2015

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. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. Results A total of 13 variables (P<0.1) were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance (P<0.05). The odds ratios (OR) of 'work changing with season' and 'sufficient rest time' did not reach 1 (0.749 and 0.441, respectively). In addition, 'sufficient rest time' seemed to be the stronger protective factor according to its higher standardized coefficient. And 'repetitive work every minute', 'constantly repetitive work' (every day), 'shortage of site personnel', and 'often switching shifts with others' seemed to be the risk factors. Conclusion Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required. © 2015 The Editorial Board of Biomedical and Environmental Sciences.


Wang Y.-K.,Guangdong Pharmaceutical University | Zhang X.,China Institute of Technology | Chen G.-L.,Foshan Institute of Occupational Disease Prevention and Control | Yu J.,Guangdong Pharmaceutical University | And 2 more authors.
Journal of Functional Foods | Year: 2016

To explore the potential of common beans as natural sources of bioactive compounds, the antioxidant properties and total phenolic content (free, soluble conjugate, insoluble-bound fraction) of 14 beans from China were evaluated systematically. The results showed that beans had diverse antioxidant capacities and the variation was very large. Black bean, flower waist bean, pearl bean and spring bay bean showed the strongest antioxidant activities among the 14 tested samples based on a combinative consideration of the results obtained by 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH) assay, ferric reducing antioxidant power (FRAP) assay, and trolox equivalent antioxidant capacity (TEAC) assay. Furthermore, several phenolic compounds were detected; gallic acid and protocatechuic acid were widely found in these beans. The results implied that these beans were important natural sources for preventing oxidative stress diseases. © 2016 Elsevier Ltd.


Chen G.-L.,Foshan Institute of Occupational Disease Prevention and Control | Chen S.-G.,Foshan Institute of Occupational Disease Prevention and Control | Xie Y.-Q.,Foshan Institute of Occupational Disease Prevention and Control | Chen F.,Foshan Institute of Occupational Disease Prevention and Control | And 3 more authors.
Journal of Functional Foods | Year: 2015

In order to provide new information on the antioxidant activities before and after in vitro digestion of the selected flowers for consumers, nutritionists, and food policy makers, total phenolic and flavonoid contents and antioxidant capacities of 23 edible flowers were evaluated. In addition, some bioactive components in the flowers were also identified and quantified by ultra performance liquid chromatography (UPLC). The correlations between 2, 2-diphenyl-1-picrylhydrazylradical scavenging activity assay (DPPH), Ferric reducing antioxidant power assay (FRAP), and ABTS•+ radical cation scavenging activity assay (ABTS) values and total flavonoid contents and total phenolic contents were also evaluated. Three flowers, Osmanthus fragrans (Thunb.) Lour, Paeonia lactiflora Pall, and Rosa rugosa Thunb (purple) showed the strongest antioxidant activities before or after the digestion, which implied that these flowers are important natural sources for the prevention of oxidative stress diseases. © 2015 Elsevier Ltd.


Chen G.-L.,Foshan Institute of Occupational Disease Prevention and Control | Chen S.-G.,Foshan Institute of Occupational Disease Prevention and Control | Chen F.,Foshan Institute of Occupational Disease Prevention and Control | Xie Y.-Q.,Foshan Institute of Occupational Disease Prevention and Control | And 4 more authors.
Journal of Functional Foods | Year: 2016

In order to find new sources of natural antioxidants, total phenolic contents and antioxidant capacities of 11 fruit seeds before and after in vitro digestion were evaluated by Folin-Ciocalteu method, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity assay (DPPH), ferric reducing antioxidant power assay (FRAP), and ABTS•+ scavenging activity (ABTS) assay, respectively. The correlations between DPPH, FRAP, ABTS values and total phenolic contents were also evaluated. The results showed that 11 fruit seeds had diverse antioxidant capacities and the variation was very large. Furthermore, the main compounds of 11 fruit seeds were identified and quantified. Four fruit seeds, Dimocarpus longgana Lour, Vitis vinifera Linn (red), Vitis vinifera Linn (black), and Litchi chinensis Sonn showed the strongest antioxidant activities whether before or after digestion, which implied that these fruit seeds are important natural sources for preventing oxidative stress diseases. © 2015 Elsevier Ltd.

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