Abnormal spinal curvature in primary and secondary school students in Tibet / 中国学校卫生

Objective@#To monitor the incidence of spinal curvature abnormalities among primary and secondary school students in Tibet, and to analyze the factors influencing spinal curvature abnormalities among primary and secondary school students in Tibet.@*Methods@#This study was based on the surveillance and intervention of common diseases among students in Tibet in 2019, involving Lhasa, Shigatse, Nagqu, Chamdo, Shannan and Ali regions, using stratified random sampling, with one urban area and one county selected in each prefecture-level city, and a total of 19 023 primary and secondary school students were monitored. The spinal curvature of primary and secondary school students was statistically analyzed, and the influencing factors were analyzed by dichotomous Logistic regression.@*Results@#The number of detected spinal curvature abnormalities in primary and secondary school students was 223, with a detection rate of 1.17%. From the results of the χ 2 test, the differences in detection rates among students of different districts and gender varied significant ( χ 2=18.01, 8.07, both P <0.01). Multivariable Logistic regression showed that monitoring site, school section, gender, height, desk and chair allocation compliance rate, and average illumination of blackboard surface were associated with spinal curvature abnormalities in primary and secondary school students ( OR =5.44, 2.17, 2.46, 1.62, 1.02, 0.11, 1.00, all P <0.05).@*Conclusion@#Multiple measures should be taken to reduce the occurrence of spinal curvature abnormalities in primary and secondary school students, starting from the influencing factors.

[A new phenethyl alcohol glycoside from Orobanche coerulescens].

The constituents of the whole plant of Orobanche coerulescens were isolated and purified by using various column chromatographic techniques including D101, silica gel and ODS. The structures were identified by spectroscopic analyses including NMR and MS. A new phenylethanol glycoside was isolated from the whole plant of O. coerulescens, and was identified as 2-(3-methoxy-4-hydroxyphenyl)-ethanol-1-O- [(1→3)-O-α-L-rhamnopyranosyl-4, 6-O-di-feruloyl]-ß-D-glucopyranoside, named as orobancheoside B. Through the antibacterial activity test, orobancheoside B was proved to have certain antibacterial activity, and be one of the main active components of O. coerulescens. The research result will laid a foundation for the medicinal materials and quality control research. Activity screening, broomrape orobancheoside B has certain antibacterial activity, as one of the main active components of O. coerulescens, and to constantly improve the quality of the medicinal materials laid a foundation.