BackgroundRecurrent respiratory tract infections (RRTIs) have a negative impact on both children’s health and family wellbeing. Deficiency of ZhengQi used to be an instinct factor driving RRTI in Traditional Chinese Medicine (TCM). Our clinical observations suggest that children with gastrointestinal heat retention syndrome (GHRS) may have a greater risk of catching respiratory tract infections (RTIs). GHRS is a new predisposing factor for RRTI and it is dietary related. This study is aimed to explore association between GHRS and RRTI.MethodsA prospective cohort study has been conducted in Beijing, China; children aged 1–18 were enrolled. TCM symptoms, demographic and physiological characteristics were recorded by using semi-structured questionnaire. GHRS was considered as a predisposing factor. Children were followed up for next 12 months. We contacted with their parents using a face-to-face questionnaire survey, via email or phone every 3 months. Episodes of RTIs were recorded in detail.ResultsThree hundred thirty four children were enrolled and 307 (91.92 %) followed up for 12 months. The incidence of RTI was 4.32 episodes per child-year (95 % CI 4.03–4.61). 69 (43.13 %) children in the group with GHRS suffered from RRTI; there were 48 (32.65 %) children in group without GHRS. The risk ratio (RR) value of RRTI occurrence was 1.32 (95 % CI 0.91–1.91, P = 0.139), and the attributable risk percent (AR%) was 24.28 %. Dry stool and irritability were positively correlated with RTI episodes, age and BMI were negatively correlated with RTI episodes in a linear regression model. Dry stool (OR = 1.510) was positively correlated with RRTI occurrence, age (OR = 0.889) and BMI (OR = 0.858) were negatively correlated with RRTI occurrence in our logistic regression model.ConclusionsGHRS is associated with RRTI in this cohort. Dry stool was positively associated with RRTI, and BMI was negatively associated with RRTI. Studies with larger sample size and longer follow up are needed to further evaluate this association. Relieving GHRS should be considered when TCM practitioners treat RRTI children, and this may protect children from suffering RTIs.Trial registrationChinese Clinical Trial Registry Number: ChiCTR-CCH-13003756
The synthesis and in-vitro biological evaluation of antifungal activities of a series of 1,2-trans glycosphingolipids (GSL) against Candida albicans, Candida parapsilosis, and Candida tropicalis were described. The preliminary study indicated that the sort of sugar moiety of GSLs affected their antifungal activities and selectivities towards the three Candida species, and the permeability might not be the sole parameter affecting their antifungal properties as presumed before, which would bring new clues to understand the antifungal profile for these types of compounds.
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