Objective To assess the values of automated breast volume scanner (ABVS) for differentiating of benign and malignant breast masses.Methods A total 174 breast masses in 148 patients were subjected both to conventional handheld B-mode ultrasound (HHUS) and ABVS examinations.The masses were defined as five categories of benign,probably benign,equivocal,probably malignant,and malignant with each method.The results of ABVS and HHUS were compared with pathology.By using the definitive diagnosis and the five levels of suspicion categories,receiver operating characteristic (ROC) curves were drawn to evaluate their diagnostic results.In addition,the diagnostic accuracy for breast masses of futures including retraction phenomenon and hyperechoic rim in coronal plane of ABVS was evaluated.Results The area under the ROC curve of ABVS (0.927) was larger than that of HHUS (0.903) (Z =2.256,P =0.024).The specificity and the positive predictive values both reached to 100％ and false positive rate was 0 with retraction phenomenon,and the specificity and the negative predictive value were 88.89％ and 94.51％ respectively with hyperechoic rim in coronal plane of ABVS.Conclusions ABVS plays an important role in the clinical practice.The retraction phenomenon and hyperechoic rim of breast masses in coronal plane of this new modality have high specialty for differentiating malignant from benign breast masses.

Objective To understand the status and difference of breastfeeding behavior in urban and rural areas of Southwest China.Methods From March to July in 2011,3659 infants aged 6-24 months were selected by stratified cluster randomized sampling method in urban and rural areas of three provinces of Southwest China (Sichuan,Yunnan and Guizhou),including 1801 (49.2％)infants from urban areas and 1858(50.8％) from rural areas.Basic information of these infants,their families and breastfeeding was obtained by a questionnaire for the mothers or baby-carers.Descriptive analysis and survival analysis (Kaplan-Meier method) were used to describe breastfeeding behavior.Chi-square test and Log-Rank test were used to identify the differences of breastfeeding behavior between urban and rural areas.Results Early breastfeeding initiation rate within one hour after birth was 10.7％(355/3315),and the numbers of urban and rural areas were 12.3％(198/1604) and 9.2％ (157/1711),respectively,x2 =8.691,P＜0.05.Totally,20.3％(725/3575) of all infants were initially fed by breast milk after delivery,and 25.1％ (440/1754) in urban areas and 15.7 ％ (285/1821) in rural areas,x2 =49.192,P＜0.05.The exclusive breastfeeding rate and breastfeeding rate within four months after birth were 35.5％ (27.4％ in urban and 43.6％ in rural areas,x2=88.678,P＜0.05)and 76.2％ (68.5％ in urban and 84.3％ in rural areas,x2 =124.702,P＜0.05),respectively.However,the exclusive breastfeeding rate and breastfeeding rate within six months after birth reduced to 11.3％ (7.9％ in urban and 14.4％ in rural areas,x22 =18.001,P＜0.05) and 65.0％ (54.0％ in urban and 76.3％ in rural areas,x2 =199.662,P＜0.05),respectively.The median breastfeeding duration was 8.0 months (7.0 months in urban and 9.0 months in rural areas,x2 =96.780,P＜ 0.05).The most common reason of weaning was insufficient breast milk which accounting for 48.7 ％ of families [56.9％ (1161/2385) in urban and 39.9％(462/1157) in rural areas,x2=68.840,P＜0.05].Conclusions In Southwest China,intervention program should be implemented to improve the breastfeeding status.Breastfeeding behaviors are different between urban and rural areas in Southwest China.The initiation of breastfeeding in urban area is better,but the sustainability of breastfeeding is better in rural area.

Purpose To analyze the relationships between glomerular filtration rate (GFR) measured by SPECT and renal parenchyma thickness and enhanced CT value measured by CT, and to explore predictive significance of CT in evaluating renal function of patients with hydronephrosis.Materials and Methods One hundred and fifteen patients diagnosed with unilateral hydronephrosis by ultrasound were retrospectively analyzed. GFR% (GFR percentage of affected kidney to the both kidneys) was measured by SPECT. CT% (percentage of affected renal parenchyma thickness to the both kidneys) and enhanced CT% (percentage of enhanced CT value of affected kidney to the both kidneys) were measured by pre- and post-contrast CT scan. According to GFR, the renal function was divided into mild-to-moderate impairment, severely impairment and non-function. Twenty-five volunteers were recruited as control group. CT%, enhanced CT% and GFR%among the four groups were compared, and the correlation of CT% and enhanced CT%with GFR% was analyzed to evaluated CT in predicting renal function.Results CT%, enhanced CT% and GFR% in mild-to-moderate impairment group was significantly greater than those in severely impairment group and non function group (F=20.24, 7.78 and 329.21,P<0.05). GFR% was positive correlated with CT% (r=0.58,P<0.05) and enhanced CT% (r=0.61,P<0.05). Area under curve (AUC) of CT% were 0.54, 0.79 and 0.83 for mild-to-moderate impairment, severely impairment and non-function, with sensitivity of 92.91%, 93.47%, 65.72%, and specificity of 35.33%, 59.47%, and 88.62%, respectively. AUC of enhanced CT% were 0.79, 0.89 and 0.96 for the three groups, with sensitivity of 97.51%, 80.02%, 97.66%, and specificity of 58.14%, 89.82% and 94.27%, respectively.Conclusion There was high correlation between renal function imaging by SPECT and CT in evaluating renal function of hydroneohrosis patients. Pre- and post-contrast CT scan can be used as complements in predicting renal function, and post-contrast CT with high accuracy.

Objective:By analyzing the effect of deacetylase inhibitors on macrophage polarization process of histone modification,and the influence of the process of macrophage polarization ,analysis deacetylase inhibitors whether have the effect on the activity of the macrophage polarization by altered histone modification of macrophages , in order to provide a new perspective for the treatment of autoimmune diseases .Methods:Using lipopolysaccharide ( LPS) and interferon-γ( IFN-γ) to stimulate J774.1 cells for 24 h,and interleukin-4 ( IL-4 ) to stimulate J774.1 cells for 24 h.And 2 mmol/L valproic acid ( VPA ) was added in the induction process.Collecting J774.1 cells,fluorescent quantitation PCR assay and ELISA assay was used for the detection of specific markers of gene expression in macrophage polarization , flow cytometry and immunofluorescence assay for the detection of histone modifications.Results:J774.1 cells were polarized into M1 macrophages which were stimulated by LPS and IFN-γfor 24 h;and also J774.1 cells were polarized into M2 macrophages which were stimulated by IL-4 for 24 h.The degree of acetylation of H 3K9 for M1 phenotype was increased after VPA treatment , the expression of interleukin-6 (IL-6 ) , inducible nitric oxide synthase ( iNOS ) , and chemotactic factor(CCL-2) was decreased,and the expression of CD86 was increased.The degree of acetylation of H3K9 for M1 phenotype was also increased after VPA treatment ,and also the expression of Arginase,Fizz-1,mannose receptor(CD 206) and Ym1 were increased.Conclusion:The polarization state of the macrophages and histone modification had a certain relevance .VPA could induce the transformation of M1 phenotype to M2 phenotype in the induction system of the M1 macrophages,however,the expression of specific genes in M1 phenotype was inhibited in the induction system of the M 2 macrophages.

Objective To evaluate the effect of bleomyin A5 combined with phosphorus-32 colloid in the treatment of mucocele.Methods A total of 214 patients divided into three groups,bleomyin A5(50 cases),phosphorus-32 colloid(50 cases) and bleomyin A5 combined with phosphorus-32 colloid(114 cases).Results The efficacy of bleomyin A5 group,phosphorus-32 colloid group,and bleomyin A5 combined with phosphorus-32 colloid group was 84％ (42/50),82％ (41/50) and 98％ (112/114),respectively.There were significant difference in efficacy among the three groups (P＜0.05).The phosphorus-32 colloid group and the bleomyin A5 group had no significant difference in efficacy(P＞0.05).Conclusions The independent use of bleomyin A5 and phosphorus-32 colloid is effective,but the combined use of the two methods is more effective.

Objective:To explore the effects of multifunctional indwelling needle application on the fixation of indwelling peripheral venous needle in children.Methods:Totally 216 children receiving transfusion in the transfusion room of a Class Ⅲ Grade A hospital from June 2018 to March 2019 were selected and divided into the control group ( n=107) and the experimental group ( n=109) according to the random number table. The indwelling needle of children in the experimental group were fixed with the indwelling needle application, while the indwelling needle of children in the control group were fixed with the transparent sticker provided together with the needle. The indwelling time of the indwelling needle, prolapse or displacement of the indwelling needle, curling application, skin damage and residual adhesive tape in the two groups of patients were observed, and the compliance with intravenous infusion and family satisfaction were compared between the two groups. Results:The indwelling time of the indwelling needle of the children in the experimental group was longer than that of the control group; the incidence of indwelling needle prolapse or displacement, curling application, skin damage and residual adhesive tape of the experimental group were lower than that of the control group; the compliance and family satisfaction scores of the experimental group was higher than that of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:The multifunctional indwelling needle application is strongly firm, which can reduce skin damage, prolong the indwelling time of the indwelling needle, and improve the compliance of the children and the satisfaction of family members. It is recommended in the clinical care of children.

OBJECTIVETo examine the relationship between complementary feeding behaviors (CFB) and anemia for infants and young children in Sichuan, Yunnan and Guizhou province of China.

METHODSA total 3 410 children aged 6-24 months were recruited from 12 survey sites in the urban and rural areas of Sichuan, Yunnan and Guizhou provinces by stratified random cluster sampling in 3 age groups (6-8 months, 9-11 months and 12-24 months) from March to July in 2011. The information of CFB for them was collected through a specific questionnaire. According to the comprehensive evaluation method of CFB(including content of food preparation and selection, caregivers' behavior, infants' behavior, feeding environment and environmental hygiene), the scores of CFB were calculated and grouped as low ( < 60% of total score), moderate (60%-80% of total score) and high level ( > 80% of total score). Twenty microliter of fingertip blood was extracted to measure the hemoglobin concentration and anemia rate was calculated. Distribution of CFB level and rate of anemia were compared between urban/rural areas and different age groups. Difference of anemia rate for infants and young children between low/moderate/high CFB level groups was compared.

RESULTS8.0% (273/3 410) of the children were in low CFB level group, and 56.9% (1 940/3 410) and 35.1% (1 197/3 410) in moderate and high CFB level group respectively. The difference of CFB levels between urban and rural areas was significant (Z = -21.17, P < 0.05), the proportion of high level in urban area was 53.0% (829/1 565) , which was higher than that in rural area (20.0% (368/1845) ). The difference of CFB levels between different age groups was also significant (H = 43.82, P < 0.05). The proportion of high level decreased by increasing age, which was 41.0% (417/1 017) and 29.9% (389/1 300) in 6-8 months and 12-24 months respectively. The average hemoglobin concentration for infants was (119.3 ± 13.8)g/L, and the total anemia rate was 22.4% (765/3 410) . The hemoglobin concentration for infants in urban area ( (123.3 ± 11.3) g/L) was higher than rural area ((115.9 ± 14.8) g/L) (t = 16.75, P < 0.05) and the rate of anemia in urban area (10.5% (165/1 565)) was lower than that in rural area (32.5% (600/1845) ) (χ² = 235.03, P < 0.05) significantly. The rate of anemia was decreased by increasing CFB level(χ² = 73.94, P < 0.05). The rate of anemia in the low CFB level group was the highest (33.7% (92/273) ) while in the high CFB level group was 14.5% (174/1 197), which was the lowest.

CONCLUSIONThe level of complementary feeding behavior for infants and young children in Sichuan, Yunnan and Guizhou province of China is relatively low and their prevalence of anemia is relatively serious. Complementary feeding behavior is closely associated with anemia for infants and young children.

Age Factors ; Anemia ; China ; epidemiology ; Humans ; Infant ; Infant Nutritional Physiological Phenomena ; Prevalence ; Rural Population ; Surveys and Questionnaires ; Urban Population

Objective: To investigate the prevalence of calf muscle cramps and possible influencing factors for pregnant women in China. Methods: Using a multi-stage stratified probability proportional to size cluster randomization sampling method during 2010-2012. A total of 3 582 pregnant women were investigated at 150 counties from 31 provinces in China mainland. Information on calf muscle cramps, demographic socio-economic status, pregnancy information, and the physical activities was collected through questionnaires. The semi-quantitative food frequency questionnaire (FFQ) was used to collect food intake of pregnant women. Dynamic cluster analysis was used to assess dietary pattern. Multiple logistic regression was used to investigate the possible influencing factors for calf muscle cramps. Results: The prevalence of calf muscle cramps was 32.9% (1 180/3 582) in Chinese pregnant women, which was 11.6% (87/748), 28.2% (420/1 492), and 50.2% (673/1 342), respectively, during the first, second and third trimester. There were significant differences between them (χ²=349.16, P<0.001). Dietary patterns of the pregnant women were classified into three groups, which called relatively balanced pattern, high vegetables and fruits pattern, and high dairy pattern. Among the three groups, the prevalence of calf muscle cramps was 32.0% (952/2 971), 37.2% (186/500), and 37.8% (42/111), with significant differences (χ²=6.39, P=0.041). The OR (95%CI) values of calf muscle cramps in the second and third trimester was 2.96 (2.28-3.83), and 8.02 (6.16-10.44), respectively, comparing with the first trimester. The OR (95%CI) values of calf muscle cramps in the women taking calcium before pregnant was 1.45 (1.19-1.76), comparing with the one who was not taken. The OR (95%CI) values of calf muscle cramps in the women who had been diagnosed by pregnancy-induced hypertension was 5.76 (2.06-16.12), comparing with the one who had not been diagnosed. The OR (95%CI) values of calf muscle cramps in the high vegetables and fruits pattern and high dairy pattern was 1.13 (0.91-1.41), and 1.18 (0.76-1.81), respectively, comparing with the relatively balanced pattern. Conclusion The prevalence of calf muscle cramps was relatively high in Chinese pregnant women, which was significantly different among three trimesters. The residential areas, occupation, and pregnancy-induced hypertension might be related to the prevalence of calf muscle cramps. However, there was no significant difference among different dietary patterns.

Objective: To investigate the prevalence of anemia and related risk factors for pregnant women in China. Method: Based on Chinese National Nutrition and Health Surveillance 2010-2012, a total of 3 501 pregnant women were investigated from 150 counties of 31 provinces, municipalities and autonomous regions in China, using a multi-stage stratified cluster randomization sampling method. General information of pregnant women, health status, and food intake during the gestation, was collected through a questionnaire investigation. 6 ml fasting venous blood was collected for the determination of hemoglobin concentration. Data were analyzed using multiple logistic regression to investigate the prevalence of anemia and the related influencing factors. Results: The 605 of 3 501 pregnant women had anemia. The prevalence of anemia was 17.2%; and mild anemia accounted for about 61.0% (369/605). Compared with the pregnant women living in the large cities, the OR (95%CI) of those living in the poor rural areas was 1.46 (1.08-1.98). Compared with the pregnant women living in the south area of China, the OR (95%CI) of those living in the north area of China was 1.39 (1.15-1.68); Compared with the pregnant women in the first trimester, the OR (95%CI) of those in the second trimester and the third trimester were 1.79 (1.33-2.43) and 2.11 (1.56-2.85), respectively. The OR (95%CI) of pregnant women who had used folic acid supplementation within the 6 months prior to gestation was 0.76 (0.63-0.93) compared with those who had not used. Conclusion From 2010 to 2012, the epidemic characteristics of anemia was mild for the pregnant women in China, and pregnant women residential areas, periods of pregnancy and whether to take folic acid were related to anemia.

Objective: To examine the status and related factors for gestational weight gain of Chinese pregnant women at different trimesters in 2010-2012. Methods: Participants were from Chinese National Nutrition and Health Surveillance in 2010-2012. Using a multi-stage stratified cluster random sampling method, we recruited 2 805 singleton pregnant women with gestational age 13 weeks or more from 31 provinces of China. A standard questionnaire was used to collect general information and pre-pregnancy weight; body weight and height of pregnant women were measured using a unified weighing scale and stadiometer, dietary intake during the previous year was collected using a food frequency questionnaire. A multiple logistic regression was used to analyze potential factors associated with appropriate gestational weight gain. Results: Among 2 805 pregnant women, 1 441 were in the second (13-27 weeks) and 1 364 in the third trimesters (≥28 weeks) . In the 2^nd trimester, 229 cases (15.9%), 440 cases (30.5%) and 772 cases (53.6%) were insufficient gestational weight gain, appropriate gestational weight gain and excessive gestational weight gain respectively. So were 256 cases (18.8%), 474 cases (34.8%), 634 cases (46.5%) in the 3^rd trimester respectively. In the multivariate unconditional logistic model, less fruit intake was associated with insufficient weight gain for women in the 2^nd trimester (OR (95%CI): 1.58 (1.06-2.34)). Pregnant women with Han ethnicity who live in the small/medium city had lower risk of insufficient weight gain in the 3^rd trimester (OR (95%CI): 0.58 (0.34-0.98)). Those pregnant women with physical activity <1 hour/day had a higher risk of excessive weight gain (OR (95%CI): 1.33 (1.02-1.73)). Conclusion The prevalence of appropriate gestational weight gain was low in China. Our study suggests that pregnant weight gain is associated with fruit intake, types of residential area and physical activity.