Objective To investigate and analyze the situation of urban neglected children aged 3 to 6 in 9 districts of Chongqing .Methods Totally 1 316 children were randomly sampled under stratification from 18 streets of 9 district of Chongqing . Based on the Child Neglect Norms used by China ,prevalence of child neglect was identified and SPSS 13 .0 was employed for statis‐tical analysis .Scores ,frequency/degrees ,age ,sex and 5 types (physical ,emotional ,educational ,safety and medical) of child neglect on every group of the regions were calculated .Results The average prevalence of child neglect for the 3 to 6 year‐olds was 22 .95% ,and the total degree was 39 .56 ± 7 .19 .No significant differences were found in the prevalence and degree of child neglect between males and females and among age groups (P<0 .05) .The frequencies of child neglect for the five types were 5 .09% to 10 .64% ,with the higher frequencies of safety neglect (10 .64% ) and physical neglect (9 .50% ) .The degrees of child neglect for the five types were 36 .94 to 41 .24 ,with the higher degrees of educational neglect and physical neglect (41 .24 ± 10 .43 ,39 .81 ± 9 .32 respectively ) .No significant differences were found in the frequency of the types between males and females and among age groups . No significant differences were found in the degree of the types (with an exception on emotional neglect among age groups) between males and females and among age groups .The children aged 3 to 6 were mainly involved in single item of negligence ,with incidence rates as 13 .68% and proportions as 59 .60% .Conclusion The frequency and degree of child neglect among children aged 3 to 6 in the urban areas of 9 district of Chongqing were medium ,and similar between males and females and among age groups ,except the degree of emotional neglect .The children aged 3 to 6 had the higher frequencies of safety and physical neglect ,and the higher de‐grees of educational and physical neglect .The children aged 3 to 6 were mainly involved in single item of negligence .

OBJECTIVE:To study the effects of spirulina kinase(SPK)on the vascular endothelial function of model rats with atherosclerosis. METHODS:60 rats were randomly divided into normal control group(distilled water),model group(distilled wa-ter),positive control group(simvastatin,0.005 g/kg)and SPK low-dose,medium-dose,high-dose groups(80,160,320 U/kg). Except for normal control group,rats in other groups were induced for model of atherosclerosis. All groups were intragastrically ad-ministrated relevant medicines at the same time,once a day for consecutive 12 weeks. Total cholesterol(TC),triglyceride(TG), low density lipoprotein cholesterol(LDL-C),high density lipoprotein cholesterol(HDL-C),interleukin-6(IL-6),tumor necrosis factor-α(TNF-α) contents in serum of rats were measured. And the changes of thoracic aortic endothelium morphology were ob-served by HE staining. RESULTS:Compared with normal control group,TC,TG,LDL-C,IL-6,TNF-α contents in serum of rats in model group were increased(P<0.01),HDL-C content in serum was decreased(P<0.01);vascular endothelial cells fell off, intimal proliferation projected into the lumen,smooth muscle cell proliferated and disordered,medium film elastic fiber disintegrat-ed and fractured. Compared with model group,TC,TG,LDL-C,IL-6,TNF-α contents in serum of rats in administration groups were decreased(P<0.05 or P<0.01),HDL-C content in positive control group and SPK medium-dose,high-dose groups was in-creased (P<0.05). Vascular endothelial cell morphology was improved significantly in administration groups,in which,vascular endothelial cells were structurally intact in SPK medium-dose,high-dose groups,inner membrane was basically smooth;medium smooth muscle cells arranged slightly disordered in SPK medium-dose group. Compared with normal control group,there were no obvious changes. CONCLUSIONS:SPK shows obvious lipid-lowering and anti-inflammatory effects,it can protect vascular endo-thelial function. The mechanism may be related to reducing TC,TG,LDL-C,HDL-C,IL-6,TNF-αcontents and increasing HDL-C content in serum.

Objective To prepare human pneumococcal reference serum and assign IgG antibody concentrations for its 24 serotypes. Methods Fifty healthy male and non-pregnant female volunteers were vaccinated once with 23-valent pneumococcal polysaccharide vaccine. Plasma samples were collected follow-ing immunization and used to prepare reference serum BW09. IgG antibody concentrations of BW09 against the capsular polysaccharides of 24 serotypes (1, 2, 3, 4, 5, 6A, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, 33F) were assigned by WHO recommended standardized Pn PS ELISA using 09CS (supplied by Lanzhou Institute of Biological Products Co. , Ltd) as a reference se-rum. Finally, 09CS, two quality control sera and eight serum samples had concentrations reassigned for 24 pneumococcal serotypes using BW09 as the reference, and the results were compared with those using 09CS as the reference serum. Results Glycerol-contained human pneumococcal reference serum BW09 was pre-pared and the IgG antibody concentrations for its 24 serotypes were assigned. 09CS had concentrations reas-signed for 24 pneumococcal serotypes using BW09 as the reference, and the newly assigned concentrations were similar to the original values (with percentage error less than 10％ in all serotypes). IgG antibodies against capsular polysaccharides of 24 serotypes of two quality control sera and eight serum samples were as-signed by BW09 and 09CS, and the results showed a linear correlation. Conclusions The human pneumo-coccal reference serum BW09 was successfully prepared and IgG antibody concentrations for its 24 serotypes were accurately assigned.

Objective To investigate the clinical features,treatments,and prognoses of cerebral venous sinus thrombosis (CVST).Methods A retrospective analysis of clinical data of 90 patients with CVST,admitted to our hospital from January 2012 to December 2016,was performed.Comprehensive analysis of gender,age,risk factors,clinical manifestations,lesion locations,treatments and prognoses was performed.According to selection of clinical treatment options for patients with anticoagulant therapy,these patients were divided into four groups:anti-infection treatment combined with anticoagulant therapy group (n=7),anticoagulant therapy group (n=61),stent thrombectomy combined with anticoagulant therapy group (n=4),and stent thrombectomy combined with local thrombolysis and anticoagulant therapy group (n=18).Results These 90 patients (41 males and 49 females) ranged from 4 to 75 years old.Of these patients,7 were related to infections,27 were related to abnormal blood constituents,16 were related to pregnancy and puerperium,and 6 were related to oral contraceptive.The most common clinical manifestation was headache (n=69,76.70％),followed by epilepsy (n=37,41.11％) and conscious disturbance (n=25,27.78％),and all symptoms could occur isolatedly or simultaneously.The superior sagittal sinus (n=68) and transverse sinus (n=56) appeared to be the most frequent lesion sites.Four patients (57.14％) from antiinfection treatment combined with anticoagulant therapy group,43 patients (70.49％) from anticoagulant treatment group,3 (75％) from stent thrombectomy combined with anticoagulant therapy group,and 15 patients (83.33％) from stent thrombectomy combined with local thrombolysis and anticoagulant therapy group enjoyed significant curative effects.Conclusions The causes of CVST are various,most of which are non-infective;patients with abnormal blood components and women of childbearing age are of high incidence.The clinical manifestations of CVST are complicated and non-specific.The 4 therapeutic methods can improve clinical symptoms effectively;however,anticoagulant therapy is mainly used for patients with mild symptoms;and stent thrombectomy combined with local thrombolysis and anticoagulant therapy can be used for patients with severe CVST,enjoying effective treatment efficacy.