Objective:To investigate the impact of social determinants of health on the inequality of child health and health care utilization.Methods:Information of 1 118 children aged 0 to 16 is extracted from the Chinese Family Panel Studies(CFPS)year 2008 cross sectional survey data for the analysis.Age standardized concentration curves and concentration indices are employed to assess the inequalities for incidence of low birth weight,self reported good health,adequate timing of breast feeding,health insurance coverage and incidence of catastrophic health expenditures for these children.Concentration indices are decomposed to four levels of social determinants of health(community,family,mother and individual level)to understand their contributions to health inequality respectively.Results:There are health inequalities existing in the investigated children,among which social factors at mother and family level have the largest contribution.Conclusion:To respond to the call by the WHO to achieve health equity through action on the social determinants of health in a generation,the inequalities of health and health care utilization amongst Chinese children should be put on the policy agenda,and social policies should intervene from multiple social dimensions,especially from family and mother levels.

Aerenchyrna formation has been described in depth in a number of species at a histological level. But large gaps remain in our understanding of its regulation as a developmental process. It is attempted to analyse essential mineral elements like K, Mg, Cu, Zn, Ca and P in the cell wall of aerenchyma cells in petioles ofS. trifolia at five different developmental stages by CSEM-EDX technique. At early stage, K and Cl concentrations in cell wall were high up to 36% and 4.3% of dry weight, respectively. It supported the hypotheses that aerenchyma spaces are filled with liquid at early developmental stages of aerenchyma in S. trifolia petiole. Mg concentration was high at stage 2, up to 0.86% of dry weight. Zinc and Cu were detected only at rapid expansion stages, during which the concentrations were up to 1.5% and 2.5%, respectively. Calcium was detected in the cell wall only at mature stages, the concentration was high up to 1.3% of dry weight at stages 4 and 5. These results confirmed that the element concentration of aerenehyma cell wall undergoes dynamic changes during different developmental stages, and a low Ca with high Zn and Cu concentration are needed for cell expansion. Copper and Zn deposition in the cell wall showed a significant positive linear correlation, suggesting that these two elements share same or similar uptake and transport mechanism in plants.

Objective To study the effect of angiotensinⅡ(AngⅡ) on apoptosis in endothelial cells(EC). Methods Human umbilical endothelial cells were cultured in vitro and treated with AngⅡ in various concentrations alone and in combination with fumonisin B1(FB1, an inhibitor of ceramidase). TUNEL was employed to determine the apoptosis of the cultured EC. The bax mRNA and protein levels of EC were detected by RT-PCR and Western-blot techniques. Results The results showed that the number of apoptotic cells was significantly higher in AngⅡ-treated endothelium than in the control group(P0.05). Conclusion AngⅡ may induce apoptosis of endothelial cells via ceramide and up-regulating the bax mRNA and protein expression. Ceramide is the upper stream of bax and induces apoptosis by bax pathway.

OBJECTIVETo observe the expressions of Calbindin(CB) and Parvalbumin (PV), the two calcium-binding protein, in auditory pathway in mice of wild type C57BL/6J and kit⁺/kitW⁻ ²Bao, a kit gene mutant.

METHODSSix mutated kit gene kit⁺/kitW⁻ ²Bao mice and 6 wild type C57BL/6J (B6) mice were anaesthetized i. p. with chloral hydrate. After the mice were fixed by heart perfusion, the brains were removed and coronal sections were cut with a freezing microtome.

RESULTSWe found that wild type mice had significant expressions of PV on ventral cochlear nucleus, anterior part (AVCN), ventral cochlear nucleus, posterior part (PVCN), inferior colliculus (IC) and auditory cortex (AC). CB was expressed in wild type mice on PVCN and nucleus of the trapezoid body (Tz). The mutant of kit gene induced the less expression of PV on PVCN, IC and AC (P < 0.01), but increased the expression of Tz (P < 0.01). CB could not be observed on PVCN in mutant mice, and the expression of AC was increased( P < 0.01).

CONCLUSIONCB and PV has differential expression level in auditory pathway. Since mutated kit gene can affect expression of PV on PVCN, IC, Tz and AC, as well as CB on PVCN and AC, it suggests that the mutation of kit gene can affect the advanced function of central nervous system in auditory pathway.

Animals ; Auditory Cortex ; metabolism ; Auditory Pathways ; metabolism ; Calbindins ; metabolism ; Inferior Colliculi ; metabolism ; Mice ; Mice, Inbred C57BL ; Mutation ; Parvalbumins ; metabolism ; Pons ; metabolism ; Proto-Oncogene Proteins c-kit ; genetics

Objective To establish the platelet antigen panel for identifying the specificity of platelet antibodies which cause platelet transfusion refractoriness and neonatal alloimmune thrombocytopenia and provide evidence for clinical therapy and platelet genotyping research.Methods Based on the frequency distribution of human platelet alloantigen (HPA)-1 to HPA-16 gene in China, the frequencies of HPA-1 to HPA-6,HPA-15 alleles in blood group O donors were genotyped by the polymerase chain reaction with sequence-specific primers (PCR-SSP) method, and suitable donors were chosen to establish platelet-specific antigen panel.Using the established platelet-specific antigen panel, the specificity of platelet antibodies caused by alloimmune reaction was identified by using simplified sensitized erythrocyte platelet serology assay (SEPSA).Results Eleven ptatelet donors with blood group O were chosen to establish platelet-specific antigen panel which can identify specificity of HPA-1 to HPA-6, HPA-15 antibodies.One case of HPA-4b (Penb) and two cases of HPA-15a (Govb) platelet specific antibodies were detected in 1 120 samples.Conclusion Identifying the specific platelet antibodies using platelet specific antigen panel has profound significance on increasing the safety and effectiveness of clinical platelet transfusion and prevention of neonatal alloimmune thrombocytopenia.

OBJECTIVETo discuss the clinical effects and superiority of applying external fixation and bone transport to treat osteomyelitis and bone defect of femoral bone.

METHODSFrom August 2008 to December 2013,16 patients with osteomyelitis and bone defect of femoral bone were treated including 11 males and 5 females with an average age of 42 years old ranging from 13 to 62 years old. The average course of disease was 18 months ranging from 2 months to 4.5 years, and the average length of bone defect was 7.8 cm ranging from 4.5 to 15 cm. The bone defect of all cases were treated by external fixation and bone transport, the bone transport began at 1 week after operation, 1 mm per day and 4 times per day.

RESULTSAll patients were followed up for 10 to 36 months (means 22.5 months). One patient did not cooperate with treatment leads to the failure, then took the amputation. The remaining 15 cases of osteomyelitis were under control, including 12 cases of bone transport achieved one stage bone union, 3 cases achieved bone union via bone graft from iliac bone. The bone union time was 5 to 13 months(means 7.9 months). Thirteen patients almost obtained the same length of two lower extremities,2 patients had shortening of 1.5 to 2 cm. The time of moving the external fixation was from 6 to 16 months (means 9.3 months).

CONCLUSIONApplication of external fixation and bone transport is an effective method in treating the osteomyelitis and bone defect that can control the infection, eradicate wounds, and be the equalization of limb length.

Adolescent ; Adult ; Bone Transplantation ; External Fixators ; Female ; Femur ; surgery ; Humans ; Male ; Middle Aged ; Osteomyelitis ; surgery

Background Congenital heart disease (CHD) is a diverse group of diseases determined by genetic and environmental factors.Considerable research has been done on genes associated with the development of the heart.Recently,focus is on the role of transcription factor NFATc1 in the development of proper valve and septa.As part of a larger study,high density single nucleotide polymorphism (SNP) scanning was used to explore the relationship between NFATc1 gene polymorphism and susceptibility to ventricular septal defect (VSD) in the Chinese Han population.Methods One hundred and ninety-two pediatric patients with congenital VSD and 192 matching healthy control subjects were studied.The haplotype reconstructions were calculated by PHASE2.0 software.Haploview software was used to perform linkage disequilibrium assessment and define haplotype blocks.The algorithm used for defining the blocks was the confidence interval method.Results The NFATc1 gene region can be divided into 11 haplotype blocks.Strong linkage disequilibrium existed within blocks 6,8,9,and 11.Three SNPs (rs7240256,rs11665469,and rs754505) within the NFATc1 gene had significant correlation with VSD by single marker association analysis.In addition,two haplotypes correlated with VSD.Conclusions NFATc1 is associated with the occurrence of VSD and it may be a predisposing gene to CHD in Han Chinese.This finding has set a direction for further genetic and functional studies.

Objective To investigate the difference of the expression of hypoxia reaction genes of vascular endothelial growth factor(VEGF),erythropoietin (EPO) and hypoxia-inducible factor-1 alpha (HIF-1α)) at different times of rats that were induced epilepsy by kainic acid (KA),and analyze their correlation.Methods The epileptic rat model was established by intraperitoneal injection of kanic acid.The expression of VEGF,EPO and HIF-1α gene were detected by real-time fluorescent quantitative PCR assay with TaqMan probe in different times after intraperitoneal injection of KA.Results Compared with normal sodium (NS) group,the expression VEGF was higher at 12 h((8.38±1.27) ×10-3 ng/μl,P＜0.05)) and 24 h((8.30±5.08) ×10-3 ng/μl,P＜0.05)),EPO was higher at 12 h((8.42±0.90) × 10-5 ng/μl,P＜0.05)) and 48 h ((1.50±3.25) × 10-2 ng/μl,P＜0.01)) while the HIF-1α was higher at 24 h((2.11±0.21) × 10-2 ng/μl,P＜0.01)),48 h((1.50±0.33) × 10-2 ng/μl,P＜0.05))and 72 h((1.64±0.16) × 10-2 ng/μl,P＜0.01)).Furthermore,the expression of EPO showed significant correlations with HIF-1α and VEGF (r=0.573,0.471,P＜0.05),VEGF and HIF-1α had eminent correlations (r=0.803,P＜0.01).Conclusions The expression of VEGF,EPO and HIF-1α participate in the seizure procedure and there is certain correlation between the three genes.

Objective To explore the clinical features of chronic granulomatous diseases and Mcleod syndrome caused by continuous X chromosome deletion. Methods The clinical data of two children diagnosed as chronic granulomatous disease and Mcleod syndrome by gene detection were retrospectively analyzed. Results Two males, 4 year 1 month and 1 year 9 month old, were both hospitalized due to persistent pulmonary infections. Both of them had a history of repeated severe infections and BCG vaccine associated lymphadenitis, and were diagnosed as X-linked chronic granulomatous disease for respiratory burst defects and deletion of all CYBB exons. Both of them had retarded motor development, and were diagnosed as DMD for detection of DMD gene exons and muscle speciifc promoter region and exon 1-2 deletion by MLPA. One case was found with obvious echinocytes, the other case showed whole exons deletion of XK gene. Both of them were diagnosed as Mcleod syndrome. Conclusion Continuous X chromosome deletion could lead to combination of Mcleod syndrome, DMD, and X-CGD, which may complicate the condition. Due to the lack of Kx antigen, repeated common blood transfusion can produce relative antibody, which lead to severe hemolytic crisis.

Objective: To assess the effect of coronary collateral circulation (CCC) on myocardial viabilityin patients with chronic total occlusion of left anterior descending (LAD) artery. Methods: A total of 101 consecutive patients with confirmed diagnosis of total LAD occlusion in our hospital were enrolled. Rest 99mTc-MIBISPECT myocardial perfusion and 18F-FDG PET were performed, in addition all patients received coronary angiography (CAG) at 3 months front and back. Both images were reconstructed in the same machine and QPS software was used to obtain the summed rest score (SRS), abnormal resting total perfusion defect (TPD), viable and non-viable myocardium, LVEDV, LVESV and LVEF in relevant patients. Based on CAG result, the patients were divided into 2 groups: CCC group, n=39 and No CCC group, n=62; according to existing old myocardial infarctionand location of LAD occlusion, the patients were further divided into 4 subgroups. The above parameters were compared among different groups. Results: There were 86 male and 15 female patients with the mean age at (59.92±11.43) years. Relevant parameters in CCC group and No CCC groupwere as in SRS: (21.23±9.68) vs (28.56±8.76), TPD: (30.03±13.69) %vs (40.37±12.50) %, viable myocardium: (21.77±13.12) % vs (13.66±9.23) %, non-viable myocardium (8.28±8.58) %vs (27.40±12.97) %, all P<0.05; in LVEDV: (109.82±30.01) ml vs (173.71±57.69) ml, LVESV: (62.82±22.39) ml vs (122.53±51.66) ml, LVEF: (43.85±8.46) % vs (31.03±8.30) %, all P<0.05. Conclusion: Our preliminary study found that CCC could maintain left ventricular rest perfusion, myocardial viability and protect cardiac function in patients with chronic total LAD occlusion.