Objective To analyze the sexuality situation and the influencing factors of 1 732 cases of migrants in Chongqing , and provide the scientific basis for improving the sexual health of migrants and the service level of the relevant departments .Meth‐ods The multi stage random cluster sampling method was used to select the subjects .A total of 1 732 married and unmarried mi‐grants who had sexuality were included into the structured questionnaire survey .The SAS9 .3 software was use to statistical analy‐sis .The χ2 test and Ordinal regression analysis and Logistic regression analysis were use to univariate and multivariate analysis .Re‐sults The communication frequency of sexuality of male migrants was higher than the females ,OR=1 .53(95% CI:1 .24-1 .89);young people had the high communication frequency of sexuality ;the frequency of low education groups lower than higher .The fre‐quency of subjects worked in Hong Kong ,Taiwan ,overseas‐funded enterprises are higher than other workplace .The sexual life fre‐quency of male migrants is higher than the female ,OR=1 .84(95% CI:1 .40-2 .42);the sexual life frequency of low age group was higher than high age group ,the frequency of sexual life in factory workers was lower than the Hong Kong ,Taiwan ,overseas‐funded enterprises workers .Compared with the subjects who communicate the sexuality issues often ,the frequency of sexual depression and suppression was higher in the migrants who communicate general and rarely ,the OR was 2 .75 (95% CI:1 .71 -4 .41) and 2 .60 (95% CI:1 .45-4 .66) .Conclusion Male ,younger ,highly educated migrants have a high sexual issues communication frequency . The age and the workplace was the most important factor of the frequency of sexual life .Ease the work pressure and increase the communication of sexual issues will help to relax the sexual depression and depression .

Objective: To analyze the rule and characteristics of school food poisoning incident in Guizhou Province during 2011-2018. Methods: Data of school food poisoning incidents were collected from the Foodborne Disease Outbreak Surveillance System in Guizhou Province during 2011-2018 and statistically analyzed. Results: A total of 78 cases of food poisoning occurred in schools in Guizhou Province during 2011-2018. Among the 1 506 cases, 869 hospitalized and 1 died. May was peak time for school food poisoning. Most of the incidents (83.33%, 65/78) occurred in the school canteens. Plant origin products (50%, 39/78), especially spoiled rice, were the most common types of food poisoning in school(16.67%, 13/78). Conclusion Primary and secondary school students were the largest group for school food poisoning in Guizhou province. It was necessary to strengthen the supervision and management of school canteens and surrounding places, as well as to improve the food safety awareness of food operators and students, preventing similar incidents from happening again.

Objective:To evaluate the effect of sodium sivelestat on the expression of specialized pro-resolving mediators (SPMs) synthesis enzymes in mice with lipopolysaccharide (LPS)-induced acute lung injury (ALI).Methods:Eighteen SPF healthy male C57BL/6 mice, aged 6-8 weeks, weighing 20-25 g, were divided into 3 groups ( n=6 each) using a random number table method: control group (C group), LPS-induced ALI group (ALI group), and LPS-induced ALI + sodium sivelestat group (ALI+ SV group). ALI was induced by intravenous injection of LPS 15 mg/kg through the tail vein. Sodium sivelestat 50 mg/kg was intraperitoneally injected at 1 h after LPS administration. At 12 h after LPS administration, blood samples were collected from the eyeballs for routine blood tests, and the remaining blood was processed for serum extraction. The mice were sacrificed after anesthesia, and lung tissues were collected to determine the wet/dry weight (W/D) ratio, serum concentrations of interleukin-1beta (IL-1β) and IL-10 (by enzyme-linked immunosorbent assay), expression of neutrophil elastase (NE) and SPMs synthesis enzymes 5-lipoxygenase (5-LOX), 12-lipoxygenase (12-LOX), and 15-lipoxygenase (15-LOX) in lung tissues (by Western blot) and to examine the pathological changes of lung tissues which were scored. Results:Compared with C group, the lung injury scores, W/D ratio, white blood cell counts, percentage of neutrophil, and serum IL-1β and IL-10 concentrations were significantly increased, the expression of NE was up-regulated, and the expression of 5-LOX, 12-LOX and 15-LOX was down-regulated in ALI group ( P<0.05). Compared with ALI group, the lung injury scores, W/D ratio, white blood cell counts, percentage of neutrophil, and serum IL-1β concentration were significantly decreased, the serum IL-10 concentration was increased, the expression of NE was down-regulated, and the expression of 5-LOX, 12-LOX and 15-LOX was up-regulated in ALI+ SV group ( P<0.05). Conclusions:The mechanism by which sodium sivelestat alleviates LPS-induced ALI may be related to up-regulating the expression of SPMs synthesis enzyme and promoting the resolution of pulmonary inflammation in mice.