Association between latent classes of dietary patterns and depressive symptoms among firstgrade students from multi ethnic middle schools in Yunnan Province / 中国学校卫生

Objective@#To determine the latent class of dietary patterns and their association with depressive symptoms among first grade students from multi ethnic middle schools in Yunnan Province, so as to provide a reference basis for promoting mental health among border middle school students.@*Methods@#A cluster random sampling involving 8 500 first grade middle school students from 11 counties in Yunnan Province was conducted by a questionnaire survey between October to December 2022. The Children s Depression Inventory (CDI) was used to assess the depressive symptoms and the Food Frequency Questionnaire was used to collect eating behavior data. The latent profile analysis model was used to fit the latent class of dietary patterns among students. The association between the dietary pattern latent class and depressive symptoms was analyzed by Logistic regression.@*Results@#The depressive symptom detection rate among firstgrade middle school students was 28.3%. Prevalence of depressive symptom in girls (30.9%) was higher than boys (25.5%) with a statistically significant difference ( χ 2=29.83, P <0.01). The dietary patterns among first grade middle school students were classified into four latent classes, as follows:class 1 (low consumption of all dietary components), class 2 (high consumption of fruit, milk and dairy products), class 3 (high consumption of vegetables and meat, and low consumption of processed foods) and class 4 (low consumption of milk, dairy products and eggs, and high consumption of processed foods). After adjusting for confounding variables, the class 3 dietary pattern was negatively correlated with depressive symptoms ( OR=0.62, 95%CI =0.52-0.74) and the class 4 dietary pattern was positively correlated with depressive symptoms ( OR= 1.28 , 95%CI =1.05-1.57) ( P <0.05), compared with the class 1 dietary pattern.@*Conclusions@#Multi ethnic first grade middle school students in Yunnan Province follow various dietary patterns. Unhealthy dietary patterns increase the risk of depressive symptoms. The dietary patterns of multi ethnic middle school students in Yunnan Province should be adjusted to promote the establishment of healthy dietary patterns and reduce the risk of depression symptoms in middle school students.

Clinical and immunologic observation of Qingxianyin in the treatment of oral lichen planus / 实用口腔医学杂志

Objective:To evaluate of effects of Qingxianyin in the treatment of oral lichen planus(OLP),and to explore its regula-tion of T lymphocytes cellular immune mechanism.Methods:25 cases of OLP were treated by Qingxianyin for 8 weeks and 25 heathy subjects were served as the blank controls.Before and after treatment,peripheral blood CD4 +,CD8 + lymphocyte counts and percentages and CD4 +/CD8 + ratio were measured by flow cytometry.The clinical effects of Qingxinayin were evaluated.Results:After 8 weeks of treatment,significant effect,improvement and ineffecacy were observed in 1 8,5 and 2 cases respectively.The total effective ratio was 92.0%.The CD4 + lymphocyte counts and percentage increased(P <0.05),CD8 + counts and percentage de-creased(P <0.05),CD4 +/CD8 + ratio increased(P <0.05).After treatment the indexes changed towards those of the healthy con-trols.Conclusion:Qingxianyin is effective in the treatment of OLP by promoting mucosal healing,microcirculation and improving im-mune function.