Objective: To investigate the epidemiology of iron-deficiency anemia among children aged 0-6 years in plateau area,and to provide a basis for the formulation of prevention and treatment measures for anemia. Methods: A total of 1 512 children aged 0-6 years were randomly selected from 4 counties in plateau area by stratified and cluster sampling. Blood hemoglobin level was tested. Child dietary behaviors were collected from their parents. Results: There were significant differences in the prevalence of children with different age, family location, education level of main dependants, occupation of main dependants and per capita income of family(χ2=12.83,39.48,27.05,44.26,32.45, P<0.05).No significant difference for anemia prevalence in gender and nationality was found. The prevalence of anemia among children aged 0-6 years was 67.0%, and the prevalence was highest among children aged 1 years while decreased with age.Univariate analysis of variance showed that the prevalence anemia was 74.0% in rural children, which was significantly higher than children in urban area 58.6%(χ2=39.48,P<0.05). Low education and income level of caregiver, husbandry in the family, no exclusive breastfeeding under 6 months, and picky eaters positively associated with high prevalence of anemia. The prevalence rate of anemia in 0-6 months old infants fed with mixed feeding and artificial feeding (73.1%, 75.0%) was higher than that of breast feeding (48.9%) (χ2=6.78, P<0.05). Picky eating can lead to a high incidence of anemia in children. Conclusion Promoting healthy diets and correcting unhealthy dietary pattern through nutrition education to parents might be effective ways to lower the prevalence of anemia among children in plateau areas.

Objective: To investigate the effects of parental feeding practices on anemia in children aged 0-6 years in the minority area of the plateau, and to provide evidence for anemia intervention. Methods: A total of 1 726 children aged 0-6 years in 4 counties of Gannan Tibetan Autonomous Prefecture were selected by stratified random cluster sampling to measure hemoglobin level. Parental feeding practices were evaluated. Results: The anemia prevalence rate among children aged 0-6 years was 50.3%. The prevalence of anemia was higher in those with younger age, Tibetan ethnic, rural residence, low parents education level and family income(χ2=156.95，899.51，148.17，8.18，16.36，11.03，P<0.05). Parentl awareness rates on feeding knowledge were 10.0%-53.7%. The report rates of distraction and force-feeding were 51.4% and 36.1%, respectively. Logistic regression analysis showed that parents incorrect feeding knowledge and compulsive feeding behaviors were positively associated with anemia in children(P<0.05). Conclusion Improvement of parents health literacy and feeding behavior is an important intervention to reduce anemia in children aged 0-6 years.

OBJECTIVE： To systematically evaluate the difference in therapeutic efficacy， safety and cardiac function of Chinese patent medicine injection for promoting blood circulation and removing blood stasis combined with routine treatment after percutaneous coronary intervention （PCI）， and to provide evidence-based reference for clinical drug use. METHODS： Retrieved from Cochrane library， PubMed， Embase， CNKI， Wanfang database and Chinese sci-tech periodicals database， RCTs about different Chinese patent medicine injection for promoting blood circulation and removing blood stasis combined with routine treatment （trial group） versus routine treatment （control group） after PCI were collected. After screening the literature and extracting the data， the quality of the included studies was evaluated by modified Jadad scale. Bayesian network Meta- analysis was performed by using Stata 14.0 software and Markov Chain-Monte Carlo method. RESULTS： A total of 15 RCTs involving 1 364 patients were included， involving Salvia miltiorrhiza injection， Puerarin injection， Yiqi fumai injection， Xuebijing injection， Shenfu injection， Shuxuetong injection， Salvia miltiorrhiza and ligustrazine injection， Rhodiola wallichiana injection， Danhong injection. Results of Meta-analysis showed that in the aspect of improving total response rate of ECG， 8 kinds of intervention measures were involved；compared with control group， 7 kinds of intervention measures could improve the total response rate of ECG of trial group except for Shenfu injection （P＞0.05）； network Meta-analysis ranking showed that S. miltiorrhiza injection＞Puerarin injection＞Shenfu injection＞S. miltiorrhiza and ligustrazine injection＞Shuxuetong injection＞R. wallichiana injection＞ Danhong injection＞routine treatment. In terms of reducing adverse cardiovascular events （MACE） incidence，8 kinds of intervention measures were involved； compared with control group， 7 kinds of intervention measures could reduce the MACE incidence of trial group except for Puerarin injection （P＞0.05）； network Meta-analysis ranking showed that S. miltiorrhiza and ligustrazine injection＞Danhong injection＞Xuebijing injection＞Shuxuetong injection＞S. miltiorrhiza injection＞R. wallichiana injection＞ Puerarin injection＞routine treatment. In terms of improving left ventricular ejection fraction （LVEF） after treatment， 8 kinds of intervention measures were involved； compared with control group， 7 intervention measures could significantly improve LVEF after treatment of trial group except for R. wallichiana injection (P＞0.05）； network Meta-analysis ranking showed that S. miltiorrhiza and ligustrazine injection＞Yiqi fumai injection＞Danhong injection＞Shenfu injection＞S. miltiorrhiza injection＞Shuxuetong injection＞R. wallichiana injection＞routine treatment. CONCLUSIONS： Compared with routine treatment， S. miltiorrhiza injection is the best in improving total response rate of ECG； S. miltiorrhiza and ligustrazine injection is the best in reducing MACE incidence and improving LVEF after treatment.

ObjectiveTo explore the clinical efficacy of compound Wufengcao liquid （CWL） on tuberculous ulcer and the influence on macrophage polarization. Method① Clinical experiment： A total of 145 patients with tuberculous ulcer who were treated in Nanjing Integrated Traditional Chinese and Western Medicine Hospital were randomized into observation group， control group Ⅰ， and control group Ⅱ according to the random number table method. In addition to the basic anti-tuberculosis chemotherapy， CWL， Kangfuxin liquid， and isoniazid solution （local external application） were respectively used in the observation group， control group Ⅰ， and control group Ⅱ. The treatment lasted 4 weeks for each group. The total effective rate in wound healing， traditional Chinese medicine（TCM） syndrome score， and histopathological morphology of wound were observed and the expression of inducible nitric oxide synthase （iNOS） and arginase-1 （Arg-1） in wound tissue was measured. ② Cell experiment： RAW264.7 cells were cultured in DMEM （10% fetal bovine serum， 1% double-antibody solution） in a cell incubator （37 °C， 5% CO₂）. Phorbol 12-myristate 13-acetate （PMA） was used to induce the differentiation of RAW264.7 cells into macrophages. Lipopolysaccharide （LPS） was employed to stimulate polarization of macrophages into M1 type and interleukin-4 （IL-4） to induce the polarization into M2 type. Kangfuxin solution， isoniazid solution， and CWL were respectively applied to the above cell model for 36 h. The cell supernatant was collected and centrifuged. Western blot was used to detect the protein expression of tumor necrosis factor-α （TNF-α）， transforming growth factor-β （TGF-β）， iNOS， and Arg-1， and flow cytometry （FCM） to detect the expression of CD86 and CD206. Result①Clinical experiment： The total effective rate in the CWL group ［98.0% （48/49）］ was higher than that in the control group Ⅰ ［87.5% （42/48）， χ²=3.962， P<0.05］ and control group Ⅱ ［83.3% （40/48）， χ²=6.162， P<0.05］. After 28 days of treatment， compared with control group Ⅰ and control group Ⅱ， CWL decreased the TCM syndrome score （P<0.05） and obviously improved the histopathological morphology of the wound. Immunohistochemistry results showed that the iNOS expression in local focus tissue was lower （P<0.05） and the expression of Arg-1 was higher （P<0.05， P<0.01） in the CWL group than in the control group Ⅰ and control group Ⅱ after 28 days of treatment. ② Cell experiment： Western blot assay showed that the expression of iNOS and TNF-α in LPS group increased compared with that in the M0 group （P<0.01） and the expression in the LPS+ isoniazid group， LPS+ Kangfuxin group， and LPS+CWL group was lower than that in the LPS group （P<0.05）. The expression of iNOS in LPS+Kangfuxin group and LPS+ CWL group was lower than that in the LPS+isoniazid group （P<0.05， P<0.01）， and the expression of TNF-α in LPS+ CWL group was lower than that in LPS+isoniazid group （P<0.01）. The expression of TNF-α in LPS+ CWL group decreased compared with that in the LPS+ Kangfuxin group （P<0.05）. The expression of Arg-1 and TGF-β in IL-4 group was higher than that in the M0 group （P<0.01）， and the expression in the IL-4+isoniazid group， IL-4+Kangfuxin group， and IL-4+ CWL group was higher than that in the IL-4 group （P<0.05）. The expression of Arg-1 and TGF-β in the IL-4+ Kangfuxin group and IL-4+CWL group was higher than that in the IL-4+isoniazid group （P<0.05， P<0.01）， and the expression was higher in the IL-4+CWL group than in the IL-4+Kangfuxin group （P<0.05， P<0.01）. The FCM result showed that the expression of CD86 and CD206 in LPS group and IL-4 group was higher than that in M0 group （P<0.01）. CD86 expression in LPS+isoniazid group， LPS+ Kangfuxin group， and LPS+CWL group was lower than that in the LPS group （P<0.01）. The expression of CD86 in LPS+Kangfuxin group and LPS+ CWL group increased compared with that in the LPS+isoniazid group （P<0.01）， and the expression was higher in the LPS+ CWL group than in the LPS+Kangfuxin group （P<0.01）. CD206 expression in IL-4+ isoniazid group， IL-4+Kangfuxin liquor group， and IL-4+ CWL group was increased compared with that in the IL-4 group （P<0.01）. CD206 expression in IL-4+Kangfuxin liquid group and IL-4+ CWL group was decreased compared with that in the IL-4+isoniazid group （P<0.01）. CD206 expression in IL-4+CWL group was lower than that in the IL-4+ Kangfuxin group （P<0.05）. ConclusionCWL can promote the healing of tuberculous ulcers， and the mechanism is that it inhibits the expression of iNOS， TNF-α， and CD86 and promotes the expression of Arg-1， TGF-β， and CD206， thereby regulating M1/M2 polarization balance.

OBJECTIVES: To summarize the open-eruption technique of impacted anterior maxillary teeth, this study reports a technically improved operation on surgical exposure based on dental follicles and evaluates post-treatment periodontal health considering the effect of dental follicles. METHODS: Patients who underwent open-eruption technique with unilateral labially impacted maxillary central incisors were selected. The impacted teeth were assigned to the experimental group, and the contralateral unimpacted maxillary central incisors were assigned to the control group. In the surgical exposure, the new technique makes use of dental follicles to manage the soft tissue, so as to preserve soft tissue for better aesthetic results and healthier periodontal tissue. Tooth length, root length, alveolar bone loss, and alveolar bone thickness were recorded after the therapy. RESULTS: A total of 17 patients with unilateral maxillary central incisor impaction were successfully treated. The tooth length and root length of the two groups showed a statistically significant difference between the impacted and homonym teeth, with a shorter length in the impacted tooth (P<0.05). More labial alveolar bone loss was found in the experimental group compared with that in the control group (P<0.05). The outcomes of the cementoenamel junction width, pa- latal alveolar bone loss, and alveolar bone thickness did not indicate statistical significance between the experimental and control groups (P>0.05). CONCLUSIONS In the surgical exposure, the new technique uses dental follicles to manage the soft tissue and preserve it for better aesthetic results and healthier periodontal tissues.
Humans ; Tooth, Impacted/surgery* ; Incisor ; Alveolar Bone Loss/diagnostic imaging* ; Tooth Root ; Dental Sac ; Maxilla/surgery* ; Esthetics, Dental

At present, traditional methods on statistics have limitations in controlling time- varying confounding. This paper introduces an analysis method, parametric g-formula, which would adjust time-varying confounding, and also exemplifies the steps of its implementation for purpose to provide a new reference for researchers to deal with long-term observational data.