Objective To explore the effect of the meteorologic factors on air pollution in the summer in Xian, China. Methods The data of SO2?NO2 and PM10 concentrations in the air and the related meteorologic factors [maximum temperature(tmax), minimum temperature(tmin), average air pressure(P) and relative humidity(H)) from April 1st to June 30th in 2005 were collected. The correlation between the air pollutant level and related meteorologic factors was analyzed by the elements time diagram and multiple regression models with SPSS 11.0 software. Results A significant correlations between the meteorological elements and air pollutants was seen, the regression models for air pollutants were as follows, lnSO2=-3.352+0.019 tmax-0.026 tmin, lnNO2=-3.448-0.003H+0.012 tmax-0.015 tmin and lnPM10=-2.197+0.011 tmax-0.021 tmin. Conclusion The meteorologic factors have some effects on the air pollution levels and then impact human health in some degree.

In order to better construct important diseases of traditional Chinese medicine ( TCM ) clinical re-search base , and strengthen the construction of medical and clinical research of TCM information sharing sys-tem, Hubei Provincial Hospital of Traditional Chinese Medicine has constructed research type clinic. The con-struction idea of research type clinic is the mode of real world TCM clinical research . The construction of research type clinic mode was from three aspects, which were the clinical research, health management and distinctive diagnosis and treatment .

Objective To evaluate the clinical efficacy of antibiotic -impregnated shunt catheters in hydrocephalus shunt. Methods A retrospective analysis of clinical data from patients with hydrocephalus shunt surgery in our hospital during the period from May 2011 to August 2016. Based on the types of catheters, patients were divided into common conduit (not AISCs group) and antibiotics infiltrating pipe groups (AISCs group). All patients were followed up for 6 months after shunt surgery. The diversion and infection was recorded. Results The data of 193 patients with hydrocephalus shunt were analyzed, including 124 cases of non-AISCs group and 69 cases of AISCs group. Compared with non-AISCs group,the incidence of postoperative infection of AISCs was significantly decreased(P<0.05). There was no significant difference in the incidence of shunt and reoperation between the two groups (P>0.05). In addition, there was no significant difference in the rupture, displacement and exposure of the two groups (P>0.05).Conclusion ASICs can effectively reduce the incidence of hydrocephalus shunt infection.

Objective To investigate interleukin (IL)-17 expression induced by orthodontic force in periodontal ligament under different periodontal conditions.Methods Seventy-seven male SD rats were divided randomly into 5 groups:healthy movement group (HM),active periodontitis movement group (PM) recovery periodontitis movement group (RM),positive control group (PC) and normal control group (NC).Active periodontitis was set up by means of ligature+susceptible bacteria+suger water in PM,PC and RM groups.This stimulating factor was removed in RM group.NiTi spring was used to apply 0.49 N mesial force to move upper first molar of the rats in HM,PM and RM groups.HM,PM and RM group rats were sacrificed on day 3 (d3),day 7 (d7) and day 14 (d14).Expression changes of IL-17 in periodontal tissue in each group were measured using immunohistochemical stain and real time fluorescence quantitative PCR.Results IL-17 expression in periodontal ligament showed more positively in PM and RM groups compared with NC,PC and HM groups.No difference was found in the expression of IL-17 mRNA in NC (1.00±0.00) (P＞0.05),except in HM d14 (1.00±0.07) and RM d14 (1.19±0.15).Higher expression of IL-17 mRNA (P＜0.05) was found in other groups.The expression of IL-17 mRNA in RM d3 and d7 increased more than that in HM group in the same period (P＜0.05) and it decreased significantly (P＜0.05) compared with that in PM groups in the same period.Conclusions IL-17 was involved in the regulation of orthodontic tooth movement in different periodontal conditions.Orthodontic force caused limited increase of IL-17 mRNA expression in recovery phase of periodontitis at early stage,then back to normal.However,in active inflammatory periodontal tissue,orthodontic force kept IL-17 mRNA at high level.

Rotator cuff tears are one of the three most prevalent musculoskeletal disorders, with the supraspinatus tendon as the most common lesion site. It may lead to chronic shoulder pain, weakness and limited joint motion, and eventually to secondary degeneration of the shoulder. As traditional biomechanical experiments are limited by measurement techniques and ethical issues, it is almost impossible to clarify the stress distributions at the rotator cuff under physiological and pathological conditions. Recently, advances in computer science, software development and image processing have rapidly improved finite element models of shoulder joint which promote the researches into pathogenesis of rotator cuff tears and their surgical techniques, making finite element analysis an indispensable means in the biomechanic research of rotator cuff. This paper reviews the recent literature available in China and abroad to expound on the element models of shoulder joint applied in the researches into pathogenesis and surgery of rotator cuff tear.

Objective:To investigate the cognition and demands of parents of premature infants on family integrated care (FICare) and to provide reference for formulating appropriate FICare programs.Methods:Using the convenient sampling method, a total of 160 parents of premature infants who were followed up in Neonatal Integrated Clinic of Children 's Hospital of Chongqing Medical University from March to July 2021 were selected as the research objects. The parents of premature infants were surveyed using a self-designed Questionnaire on the Cognitive Needs of Parents of Premature Infants on FICare. A total of 160 questionnaires were distributed and 140 valid questionnaires were recovered, with the effective recovery rate of 87.5%. Results:Among 140 parents of premature infants, 135 parents thought FICare was beneficial. 71.9% (97/135) parents chose to participate in 1 to 4 hours of care every day, but 31.1% (42/135) parents lacked confidence in care. Among the FICare providers selected by the parents, 94.1% (127/135) were neonatologists, 88.9% (120/135) were neonatal nurses, 62.2% (84/135) were breast-feeding counselors and 62.2% (84/135) were dietitians. 66.7% (90/135) parents and 58.5% (79/135) parents chose simulation teaching and online course as the ideal training mode. Discharge guidance was the service that parents urgently needed, with a score of 74.5%.Conclusions:Parents of premature infants have multi-level and multi-dimensional demands for FICare, so it is necessary to develop multi-level and all-round FICare services based on parents ' demands in the future to improve the outcomes of families of premature infants.

The enhancement of the coping ability of the parents of premature infants can help improve the quality of life of the premature infants after discharge, and reduce the physical and mental stress of the parents of the premature infants. This article reviews the concept, significance, research status and intervention measures of coping ability of the parents of premature infants at home and abroad, and aims at providing references and ideas for relevant research in China.