BackgroundSibling relationships play a critical role in shaping anxiety symptoms in firstborn children. Anxiety symptoms often originate in early childhood and can persist into adolescence and adulthood. However， there is insufficient research on anxiety symptoms in preschool children， especially firstborn preschool children. ObjectiveTo explore the influencing factors of anxiety symptoms among firstborn preschool children， so as to provide references for the intervention of anxiety symptom for children in families with multiple children. MethodsFrom October to December 2021， a total of 8 449 children from 234 kindergartens in Longhua District of Shenzhen were included using a cluster sampling method. Sibling Inventory of Behavior （SIB） and Spence Preschool Anxiety Scale （SPAS） were used to investigate. Logistic regression analysis was used to identify influencing factors of anxiety symptoms in firstborn preschool children. ResultsA total of 8 419 （99.64%） valid questionnaires were collected. Anxiety symptoms were detected in 344（4.09%） firstborn preschool children. Statistically significant differences were observed between anxiety group and non-anxiety group in terms of household registration， monthly family income， maternal age， maternal education level， paternal education level， family living conditions and whether they are left-behind children （χ²/t=9.906， 33.490， 5.136， 13.485， 9.690， 17.332， 21.975， P<0.05 or 0.01）. Compared with non-anxiety group， children in the anxiety group scored higher on the SIB dimensions of rivalry， aggression and avoidance （t=165.322， 74.471， 286.419， P<0.01）， and lower on companionship， empathy and teaching （t=59.133， 42.417， 39.112， P<0.01）. Risk factors for anxiety symptoms in firstborn preschool children included left-behind children， as well as negative sibling relationships characterized by rivalry and avoidance （OR=1.195， 1.143， 1.260， P<0.05 or 0.01）. ConclusionFirstborn preschool children who are left-behind are more susceptible to anxiety symptoms. Negative sibling relationships， characterized by competition and avoidance， may also contribute to the emergence of anxiety symptoms in firstborn preschool children.

【Objective】 To improve method for determinating of biological potency of IgG Fc fragment in Chinese Pharmacopoeia and establish a method which is suitable for enzyme-labeled instrument. 【Methods】 The biological properties of FC fragment of IVIG in Chinese Pharmacopiea(General 3514) was adjusted, including sensitization process, sample treatment and dynamic curve parameters. Meanwhile, the kinetic curve of hemolysis was fitted with Origin, which made the method more suitable for enzyme plate. The biological properties of Fc fragment of IVIG was calculated by kinetics curve reaction of reference and sample. 【Results】 The method are stable, the RSD of repeatability and intermediate is 10%, also with significant improvement in efficiency. 【Conclusion】 The detection of properties of Fc fragment of IVIG is stable and efficient, it can be used for properties of Fc fragment of IVIG.

Objective To evaluate the effect of dexmedetomidine on the expression of Semaphorin 7A during lung ischemia-reperfusion (I/R) in rats.Methods Thirty healthy clean-grade adult male Sprague-Dawley rats,aged 8-12 weeks,weighing 200-240 g,were divided into 3 groups (n=10 each) using a random number table method:sham operation group (S group),I/R group and dexmedetomidine group (D group).Only sternotomy was performed,and the left hilum of lung was not clamped in S group.The model of lung I/R injury was established by clamping the left hilum of lung for 45 min followed by 120 min of reperfusion in I/R group.Dexmedetomidine 50 μg/kg was intraperitoneally injected at 30 min before ischemia,and then the model was established in D group.The rats were sacrificed at the end of reperfusion,and the lungs were removed for examination of the pathological changes (using haematoxylin and eosin staining) which were scored and for determination of the wet to dry weight ratio (W/D ratio),expression of Semaphorin 7A protein and mRNA (by Western blot or real-time polymerase chain reaction),and contents of tumor necrosis factor-alpha (TNF-α) and interleukin-1beta (IL-1β) in lung tissues (by enzyme-linked immunosorbent assay).Results Compared with S group,W/D ratio and pathological scores were significantly increased,the expression of Semaphorin 7A protein and mRNA was up-regulated,and the contents of TNF-α and IL-1β were increased in I/R and D groups (P＜0.05).Compared with I/R group,W/D ratio and pathological scores were significantly decreased,the expression of Semaphorin 7A protein and mRNA was down-regulated,and the contents of TNF-α and IL-1 β were decreased in D group (P＜0.05).Conclusion The mechanism by which dexmedetomidine reduces lung I/R injury may be related to down-regulating Semaphorin 7A expression,thus inhibiting inflammatory responses of rats.

OBJECTIVE:To evaluate the clinical efficacy and safety of Shenqi fuzheng injection combined with chemotherapy in the treatment of colorectal cancer.METHODS:Retrieved from PubMed,EMBase,Clinical Trials,Cochrane Library,CJFD,CBM,Wanfang database and VIP,RCTs about Shenqi fuzheng injection combined with chemotherapy (trial group) vs.chemotherapy alone (control group) in the treatment of colorectal cancer were included.Meta-analysis was performed by Rev Man 5.3 statistical software after data extraction and quality evaluation with Cochrane system evaluator manual.RESULTS:A total of 25 RCTs were included,involving 1 987 patients.Results of Meta-analysis showed that objective remission rate of trial group was significantly higher than control group [RR=1.19,95％ CI (1.02,1.39),P=0.02];the improvement of survival quality was significantly better than control group [RR=1.72,95％CI(1.49,1.99),P＜0.001];CD4VCD8+ was significantly higher than control group [MD=0.40,95％ CI (0.29,0.50),P＜0.001];the incidence of gastrointestinal reaction was significantly higher than control group [RR=0.59,95％CI(0.52,0.68),P＜0.001];the incidence of liver and renal injury was significantly lower than control group [RR=0.52,95％CI(0.41,0.67),P＜0.001],with statistical significance.CONCLUSIONS:Shenqi fuzheng injection combined with chemotherapy can improve objective remission rate of colorectal cancer patients,survival quality and immune function,and reduce the occurrence of toxic reation.

Objective To investigate the epidemiologic characteristics of diabetes mellitus (DM) in Uygur residents in Kashgar of Xinjiang.Methods The survey was conducted among the Uygur residents aged ≥ 18 years selected through stratified cluster sampling in Kashgar by means of questionnaire survey,physical examination and basic laboratory test.The prevalence of different groups were calculated and risk factors of DM was analyzed by logistic vegression model.Results A total of 4 608 adults were surveyed.The prevalence of DM was 11.31％ (standardized prevalence:10.59％) and the prevalence was 13.65％ (standardized prevalence:12.34％) in males and 10.04％ (standardized prevalence:9.83％) in females.The prevalence increased with age.The prevalence of DM was higher than the prevalence of impaired fasting glucose (IFG) in people aged ＞60 years,especially in females.The rates of awareness,treatment and control of DM were 28.02％,21.31％ and 5.57％,respectively.Multivariate logistic regression analysis indicated that people aged 45-55,55-65 and ＞65 years had higher risk of DM and the odds ratio were 2.08 (95％CI:1.24-3.48),2.73 (95％CI:1.63-4.56) and 3.90 (95％ CI:2.24-6.78) for men and 2.63 (95％ CI:1.71-4.02),3.14 (95％ CI:2.00-4.94) and 5.56 (95％CI:3.47-8.92) for woman,respectively.Family history of DM (OR=2.88 for men,95％Cl:1.45-5.72;OR=2.52 for women,95％CI:1.49-4.26) and BMI≥28.0 kg/m2 (OR=1.77 for men,95％CI:1.19-2.64,OR.=1.80 for women,95％CI:1.30-2.50) were also risk factors for DM.Conclusion The prevalence of DM was high in Uygur residents in Kashgar,but the rate of awareness,treatment and control of DM were low.It is necessary to improve the detection rate of DM and conduct targeted prevention and control of DM.

Objective To understand the prevalence of dyslipidemia and normal blood lipids level in Uygur diabetes patients in Kashgar prefecture in southern area of Xinjiang.Methods A total of 5 078 local residents aged ≥ 18 years (42.56％ were men) selected through cluster random sampling in Kashgar were surveyed by means of questionnaire survey,physical examination and laboratory test,and 521 diabetes patients were screened.Results The overall prevalence of dyslipidemia in diabetes patients was 59.50％ (310/521) with adjusted rate as 49.39％.Age ≥65 years,overweight,obesity and abdominal obesity increased the risk for dyslipidemia by 0.771 times (95％ CI:1.015-3.088),1.132 times (95％CI:1.290-3.523),1.688 times (95％CI:1.573-4.592) and 0.801 times (95％CI:1.028-3.155) respectively.Compared with males,female was a protective factor for dyslipidemia (OR=0.507,95％CI:0.334-0.769).The overall normal rate of blood lipids level including total cholesterol (TC),triglycerides (TG),high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) for type 2 diabetes patients was 11.13％.Female,higher BMI and abdominal obesity were the factors influencing the overall normal blood lipids level.The normal rate of LDL-C level decreased with increase of age,BMI and waist circumferences (trend test x2=18.049,P＜ 0.001;trend testx2=10.582,P=0.001;x2=19.081,P＜0.001),but increased with educational level (trend testx2=9.764,P=0.002).Conclusion The prevalence of dyslipidemia in Uygur diabetes patients in Kashgar was high,however,the overall normal rate of blood lipid level was relatively low.Obesity was the most important risk factor for dyslipidemia in this area.More attention should be paid to dyslipidemia prevention in women.

Objective To investigate the prevalence of hypertension and risk factors in Uygur adults in Kashgar of Xinjiang.Methods A total of 4 748 Uygur adults aged ≥ 18 years selected through cluster random sampling in Shufu county of Kashgar prefecture were surveyed by means of questionnaire survey,physical examination and laboratory test.The prevalence,awareness,treatment and control rate of hypertension of different groups were calculated and risk factors of hypertension was analyzed by using non-conditional logistic regression model.Results The overall prevalence of hypertension was 15.73％ (age-adjusted prevalence was 13.75％).The prevalence rates of hypertension in men and women were 16.36％ (age-adjusted prevalence was 12.96％),15.39％ (age-adjusted prevalence was 14.34％),respectively.The rates of awareness,treatment and control of hypertension were 59.57％,52.74％,21.29％,respectively.The prevalence of hypertension increased with age.Compared with age group 18-34 years,the age groups 55-64,≥65 years had higher risk of hypertension and the OR values were 10.53,20.96 for men and 16.27,33.20 for women.The overweight (OR=1.47 for men,OR =1.82 for women,P＜0.05) and obesity (OR =1.88 for men,OR=2.66 for women,P＜0.05) also increased the risk of hypertension.The groups with family history of hypertension (OR=3.85 for men,OR=2.34 for women,P＜0.05) also had higher risk of hypertension.Hypertriglyceridemia was positively correlated with the prevalence of hypertension in men (OR=1.62,95％CI:1.09-2.41).Conclusions The prevalence of hypertension in Uygur adults in Kashgar area of Xinjiang was at relatively low level.The related risk factors were age,overweight,obesity,family history and hypertriglyceridemia in men and the risk factors were similar in women except hypertriglyceridemia.

Objective To investigate the knowledge,attitude and practice (KAP) to chronic diseases and associated influencing factors in Uygur adults in Kashgar of southern Xinjiang,and provide basic information for developing ethnic specific prevention and control strategies for chronic diseases.Methods With stratified cluster random sampling,investigations,including questionnaire survey,physical examination and laboratory tests were performed among local residents who were aged ≥ 18 years and selected in Shufu county in southern Xinjiang.KAP scores were calculated and unconditional logistic regression models were used to analyze influencing factors.Results A total of 4 772 Uygur adults were surveyed.The awareness rate of chronic disease related knowledge ranged from 4.32％ to 56.04％,while the awareness rate of preventive measures were from 1.76％ to 85.18％ and the participation rate of prevention program varied from 4.00％ to 97.99％.The average KAP score was 15.90 ± 4.20 and the rate of total KAP was 47.86％.Multi-factor analysis suggested the pass rate of total KAP score increased with educational level.Other factors positively associated with ‘KAP score pass rate’ were commercial insurance investment,hypertension,family history of common chronic diseases,female and abdominal obesity,while overweight was negatively associated with the KAP score pass rate.Conclusions The KAP level on chronic diseases was low in Uygur adults in Kashgar.It is necessary to continuously implement ethnic targeted health education and health promotion campaigns,especially in low education level,low income level,overweight and male groups.

Objective The inhibitor of differentiation 3 (Id3) is an important transcriptional regulation factor, which participates in tumorigenesis, cell proliferation, and cell apoptosis.β-catenin, as a central molecule of the Wnt signaling pathway, is critical for tumor development.This study aimed to evaluate the expressions of these two molecules and the regulatory effect of Id3 on β-catenin in different tumor cells.Methods Total RNA was extracted using the Trizol Reagent.The relative mRNA expression levels of Id3 and β-catenin in tumor cells were detected by quantitative real-timePCR(qRT-PCR).The recombinant eukaryotic expression vector pEGFP/Id3 with the human Id3 gene was transfected into A549, A549/ DDP and SW-480 cells using the non-liposome-mediated method.The protein expressions of Id3 and β-catenin were determined by Western blot.Results The expression of Id3 was significantly lower in the colorectal cancer cell lines SW-480 and HT-29 than in A549 and other tumor cells (P<0.05), but remarkably higher in nasopharyngeal carcinoma CNE and 5-8F cells than in other tumor cells (P<0.05).The expression of β-catenin was the highest in SW-480in comparison withother malignant tumor cells(P<0.05), and the second highest was in gastric cancer AGS and colorectal cancer HT-29 cell lines, but low in H446, A549, SPC-A-1, A549/DDP, and SK-MES-1 cell lines and extremely low or almost absent in CNE and 5-8F cells (P<0.05).After transfected with pEGFP/Id3, the cells showed a decreased volume, wrinkled membrane and absent refraction under the fluorescence microscope, which, however, were not observed in most of the cells transfected with the empty vector pEGFP.Compared with the control, the Id3/pEGFP group showed remarkably increased expressions of Id3 mRNA in the A549, A549/DDI, and SW-480 cells (1.24±0.12 vs 193.12±2.80, 1.09±0.11 vs 188.30±2.60, and 0.92±0.29 vs 19.08±0.59, P<0.01), and the expression of β-catenin was significantly down-regulated in the transfected SW-480 cells with an overexpression of Id3 (0.98±0.05 vs 0.32±0.03, P<0.01), but exhibited no statistically significant differences from those in the transfected A549 and A549/DDP cells (0.98±0.07 vs 1.04±0.08 and 0.98±0.05 vs 0.32±0.03, P>0.05).Western blot showed the same results.Conclusion The expression levels of Id3 and β-catenin vary in different tumor cell lines.Anabnormally high level of β-catenin is an important risk factor for colorectal cancer, and the down-regulatedexpression of β-catenin after eogenous transfection of Id3 may provide some new ideas for target gene therapies of colorectal cancer.

BACKGROUND:Nickel-titanium memory-shape compression anastomosis clip (Ni-Ti CAC) has been used in gastrointestinal anastomosis, but its efficacy and safety still remain controversial.OBJECTIVE:To evaluate the efficacy and safety of Ni-Ti CAC in gastrointestinal anastomosis.METHODS:A computer-based online research of PubMed, EMbase, Cochrane Library, CBM, CNKI, and VIP databases was performed for articles published before January 15th, 2017 using the keywords of nickel-titanium, compression anastomosis clip, anastomosis, gastric, jejunum, ileum, small intestine, colon, rectum, and large intestine in English and Chinese, respectively. The randomized controled trials about Ni-Ti CACversus conventional methods for gastrointestinal anastomosis were included. Meta-analysis of the anastomosis time, time of exsufflation, and hospitalization time was performed, and sequential analysis was conducted on TSA v0.9 software.RESULTS AND CONCLUSION:A total of 18 eligible randomized controlled trials were enroled, involving 1860 patients. Ni-Ti CAC could reduce the anastomosis time [MD=-3.83, 95%CI(-6.48,-1.19),P=0.004] and time of exsufflation [MD=-0.14, 95%CI(-0.22,-0.05),P=0.002], but there was no significant difference in the hospitalization time [MD=-0.83, 95%CI(-1.82, 0.16), P=0.10]. The quality was ranked as low level based on GRADE system. The time of exsufflation of Ni-Ti CAC was superior to that of conventional method, which was confirmed by sequential analysis. One case of death was reported and incision infection was the most common adverse effects; additionaly, pulmonary embolism and abdominal pain occurred. To conclude, Ni-Ti CAC can facilitate gastrointestinal anastomosis, accelerate the time of exsufflation, and holds a good safety. However, more multicenter and high-quality randomized controlled trials are needed.