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Objective To investigate the influence of socio-economic status (SES) on the incidence of overweight and obesity. Methods By using the method of multi-stage cluster random sampling, a baseline survey was conducted on 9 280 people in Guizhou Province in 2010. All participants in the cohort were followed up from 2016 to 2020. In total 2 681 people were included in the analysis after excluding those who lost follow-up and did not meet the requirements. Univariate analysis and COX proportional regression model were used to analyze the effects of SES comprehensive score and SES single index on the incidence of overweight and obesity. Results The median follow-up was 6.42 years, and the population incidence density was 41.72/1 000 person-years. The results of multivariate COX regression showed that compared with the people with per capita annual income less than 2 667 yuan, the risks of disease for those with income of 5 000 to < 10000 yuan and ≥ 10 000 yuan were HR=0.756 (95%CI: 0.611-0.934) and HR=0.626 (95%CI: 0.498-0.787), respectively (Ptrend < 0.001). Compared with illiterate and semi-illiterate, the disease risk was lower for people with education of primary school (HR=0.740, 95%CI: 0.599-0.914), junior high school (HR=0.666, 95%CI: 0.541-0.820), and senior high school/technical secondary school and above HR=0.634 (95%CI: 0.468-0.859), respectively (Ptrend <0.001). There was no correlation between occupation and disease risk. Compared with the population with SES comprehensive score < 6, the risks of disease in the population with 8 points and ≥ 9 points were HR=0.735 (95%CI: 0.566-0.955) and HR=0.540 (95%CI: 0.417-0.700), respectively (P<0.001). The results of urban and rural subgroup analysis showed that the effect of comprehensive score of SESS on the risk of disease was more significant in rural population. In terms of single index, the incidence of urban population was only related to individual education level (Ptrend =0.008), and the incidence of rural population was only related to family per capita annual income (Ptrend =0.002). Conclusion The risk of overweight and obesity is closely related to SES, and SES inequality causes health differences. Attention should be paid to urban low-education and rural low-income population. [ABSTRACT FROM AUTHOR]

Copyright of Geology & Exploration is the property of Geology & Exploration Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Nitrate reductase can reduce the nitrate in natural meat products to nitrite, avoiding a sudden increase in its content due to direct addition of nitrite and reducing the chance of producing nitrosamines, which is very important for the quality and safety of natural meat products. Staphylococcus simulans D14 screened from sausage as the starting strain, and the different effects of single mutagenesis condition including UV, microwave, and lithium chloride mutagenesis, and two compound mutagenesis methods of UV and microwave combined with lithium chloride on the strains were investigated to obtain high-yield strains of nitrate reductase, and their enzymatic properties were initially explored by shake flask fermentation in order to provide strain selection for fermenters of natural meat products. The optimal conditions for UV, microwave and lithium chloride mutagenesis were determined: UV irradiation for 60 s, microwave irradiation for 80 s and lithium chloride concentration of 1.5%. The mutagenic strain S. simulans ZSJ6 was screened, and the enzyme activity of the strain reached 603.29 U/mg protein, which was 3.59 times higher that of the starting strain, and there was no significant change in the enzyme activity of the mutagenic strain after 8 consecutive passages（P>0.05）, indicating that its genetic stability was good. From the results of enzymatic properties, its optimal action temperature was 30℃, the optimal action pH was 7.5, and its stability was excellent, and the enzyme activity retained more than 90% after incubation at pH 7.5 for 2 h. Mg2+, Ca2+, and K+ all promoted enzyme activity, of which Ca2+ had the largest role in promoting the enzyme activity, which was 1.63 times higher than that blank group. Cu2+, Fe2+, Hg2+ and Mn2+ suppressed enzyme activity, among which Cu2+ and Hg2+ had the maximum inhibitory action on the enzyme activity, and the enzyme activity was all inhibited to less than 30%. The above results provide a solution for the transformation of nitrate in natural meat products and the problem of high nitrite concentration brought by the use of nitrite at the initial stage of production, which has research value and potential for application [ABSTRACT FROM AUTHOR]

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Image & Graphics is the property of Editorial Office of Journal of Image & Graphics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)