Therapeutic efficacy of volume-guaranteed high frequency oscillation ventilation on respiratory failure in preterm infants with a gestational age of 28-34 weeks: a prospective randomized controlled study / 中国当代儿科杂志

OBJECTIVES@#To investigate the therapeutic efficacy of volume-guaranteed high frequency oscillation ventilation (HFOV-VG) versus conventional mechanical ventilation (CMV) in the treatment of preterm infants with respiratory failure.@*METHODS@#A prospective study was conducted on 112 preterm infants with respiratory failure (a gestational age of 28-34 weeks) who were admitted to the Department of Neonatology, Jiangyin Hospital Affiliated to Medical School of Southeast University, from October 2018 to December 2022. The infants were randomly divided into an HFOV-VG group (44 infants) and a CMV group (68 infants) using the coin tossing method based on the mode of mechanical ventilation. The therapeutic efficacy was compared between the two groups.@*RESULTS@#After 24 hours of treatment, both the HFOV-VG and CMV groups showed significant improvements in arterial blood pH, partial pressure of oxygen, partial pressure of carbon dioxide, and partial pressure of oxygen/fractional concentration of inspired oxygen ratio (P<0.05), and the HFOV-VG group had better improvements than the CMV group (P<0.05). There were no significant differences between the two groups in the incidence rate of complications, 28-day mortality rate, and length of hospital stay (P>0.05), but the HFOV-VG group had a significantly shorter duration of invasive mechanical ventilation than the CMV group (P<0.05). The follow-up at the corrected age of 6 months showed that there were no significant differences between the two groups in the scores of developmental quotient, gross motor function, fine motor function, adaptive ability, language, and social behavior in the Pediatric Neuropsychological Development Scale (P>0.05).@*CONCLUSIONS@#Compared with CMV mode, HFOV-VG mode improves partial pressure of oxygen and promotes carbon dioxide elimination, thereby enhancing oxygenation and shortening the duration of mechanical ventilation in preterm infants with respiratory failure, while it has no significant impact on short-term neurobehavioral development in these infants.

Investigating the influence of moxibustion on colonic mucosal barrier in rats with dextran sulfate sodium-induced ulcerative colitis / 针灸推拿医学（英文版）

Objective: To observe the effect of moxibustion on the colonic mucosal barrier of rats with ulcerative colitis (UC) induced by dextran sulfate sodium (DSS). Methods: Forty male Sprague-Dawley rats were randomly divided into a normal group and a modeling group, with 20 rats in each group. Rats in the modeling group were subjected to preparing experimental UC models by drinking 4％ DSS for seven consecutive days. Two modeled rats and two normal rats were randomly selected for model identification. After the success of UC model was confirmed, the remaining 18 modeled rats were randomly divided into three groups, a model group, a model + herbal cake-partitioned moxibustion group, and a model + mild moxibustion group, with six rats in each group; the remaining normal rats were randomly divided into three groups, a normal group, a normal + herbal cake-partitioned moxibustion group, and a normal + mild moxibustion group, with six rats in each group. After 7 d of intervention with the herbal cake-partitioned moxibustion or the mild moxibustion, hematoxylin-eosin (HE) staining technique was used to observe the pathological changes of colon tissue under a light microscope; Western blotting and/or immunohistochemical techniques were used to detect the protein expression levels of Occludin, Claudin, junction adhesion molecular 1 (JAM1), mucin 2 (MUC2), and transforming growth factor beta1 (TGF-β1) in rat colon tissue. Results: Compared with the normal group, the colon tissue was severely damaged, the pathological score was significantly increased, and the protein expression levels of Occludin, Claudin, JAM1, MUC2, and TGF-β1 were significantly decreased in the model group (P<0.01); while there were no significant differences in the colonic histopathological score, protein expression levels of Occludin, Claudin, JAM1, MUC2, and TGF-β1 in the normal + herbal cake-partitioned moxibustion group and the normal + mild moxibustion group (P>0.05). Compared with the model group, the model + herbal cake-partitioned moxibustion group and the model + mild moxibustion group showed repaired colon tissue, ulcer healing, significantly reduced pathological score, and significantly increased protein expression levels of JAM1, MUC2, and TGF-β1 (P<0.05); the Occludin protein expression level in the colon tissue of the model + mild moxibustion group was increased (P<0.01). Conclusion: Neither herbal cake-partitioned moxibustion nor mild moxibustion influences the colonic histopathology and intestinal mucosal barrier-related protein expression in the normal rats; both herbal cake-partitioned moxibustion and mild moxibustion can up-regulate the protein expression levels of JAM1, MUC2, and TGF-β1 in the colon tissue of UC rats. Mild moxibustion can up-regulate Occludin protein expression. This may be a mechanism of moxibustion in reducing colonic mucosa inflammation in UC.

Effects of moxibustion on the P2X7R/STAT3/VEGF pathway in rats with colitis-associated colon cancer / 针灸推拿医学（英文版）

Objective: To observe the effects of herb-partitioned moxibustion and ginger-partitioned moxibustion on the growth of colon tumors in rats with colitis-associated colon cancer (CACC), and explore the mechanism of moxibustion intervening CACC through the purinergic receptor P2X ligand-gated ion channel 7 (P2X7R)/signal transducer and activator of transcription 3 (STAT3)/vascular endothelial growth factor (VEGF) pathway. Methods: A total of 26 male Sprague-Dawley rats were selected. According to the random number table method, 6 rats were selected as the normal group. The remaining 20 rats were injected intraperitoneally with azoxymethane (AOM) combined with oral dextran sodium sulfate (DSS) to prepare the CACC model. After the model was successfully established, 2 rats were randomly selected for model identification. The remaining 18 rats which were successfully modeled were randomly divided into a model group, a herb-partitioned moxibustion group and a ginger-partitioned moxibustion group, with 6 rats in each group. Moxibustion intervention was performed in the herb-partitioned moxibustion group and the ginger-partitioned moxibustion group at Qihai (CV 6) and bilateral Tianshu (ST 25). Moxibustion was performed twice at each point each time, once a day, at a 1-day interval after 6 consecutive interventions, for a total of 30 interventions. After intervention, the colon tumor load, pathological change and histopathological score were observed. Immunohistochemistry was used to detect the expressions of VEGF, P2X7R, phospho-STAT3 (p-STAT3), and nuclear factor-kappa B p65 (NF-κB p65) proteins in rat colon tissue. Western blot was used to detect the levels of p-STAT3 and NF-κB p65 proteins in rat colon tissue. Results: Compared with the normal group, the colon tumor load and histopathological score in the model group were significantly increased (both P<0.001), and different grades of dysplasia were observed in colon tissue from the model group, reaching the degree of adenocarcinoma; the expression level of P2X7R protein in colon tissue was significantly decreased (P<0.001), and the expression levels of p-STAT3, NF-κB p65 and VEGF proteins were significantly increased (all P<0.001) in the model group. Compared with the model group, the colon tumor load, colon histopathological score and the levels of p-STAT3, NF-κB p65 and VEGF proteins in colon tissue were significantly decreased (all P<0.05) in the herb-partitioned moxibustion group and the ginger-partitioned moxibustion group while the expression levels of P2X7R protein in colon tissue were significantly increased (both P<0.05). Conclusion: Both herb-partitioned moxibustion and ginger-partitioned moxibustion can reduce the colon tumor load in CACC rats and delay the progression of colon adenomas. The mechanism may be mediated by the P2X7R/STAT3 pathway to inhibit STAT3 phosphorylation, thereby reducing VEGF protein expression.

Effects of the psychological aggression and corporal punishment college students experienced before the age of 10 on anxiety and health related risky behaviors / 中国学校卫生

Objective@#To provide a basis for college students mental health education and guidance, the impact of psychological aggression and corporal punishment college students experienced before the age of 10 on anxiety and health risk behaviors was explored.@*Methods@#In April and May 2019, the convenience sampling method was used to conduct a questionnaire survey among all the freshman and sophomore students of some majors in two universities in Harbin, including a total of 2 150 students. The contents of the questionnaire included general information survey, Parent-Child Conflict Tactics Scale (CTSPC)，Self-Rating Anxiety Scale (SAS) and Adolescent Health related Risky Behavior Inventory (AHRBI).@*Results@#The percentage of college students who suffered psychological aggression and corporal punishment before the age of 10 was 80.05% and 58.37%. The detection rate of corporal punishment in boys and non-only child was significantly higher than that in girls and only child (P<0.05). The students who experienced psychological aggression and corporal punishment before the age of 10 had higher detection rates of anxiety state and six subscales of health risk behaviors than those who didn t experienced those (P<0.05). The Logistic regression analysis showed that, psychological aggression, place of residence, corporal punishment, and only child were positively associated with college students anxiety state (OR=1.85,1.53,1.49,1.34). The Logistic regression analysis showed that, psychological aggression, place of residence were positively associated with college students health-compromising behaviors (OR=1.60,1.26). Psychological aggression, gender factors, corporal punishment, and only child all influenced college students aggression and violence behavior (OR=1.75,1.66,1.63,1.28). Corporal punishment influenced college students suicide and self-injury behavior (OR=3.44). Gender factors and corporal punishment all influenced college students smoking and drinking behavior (OR=2.67,2.25).Corporal punishment and psychological aggression were positively associated with college students rule breaking behavior (OR=1.88,1.55). Corporal punishment, gender factors, and family income all influenced college students unprotected sexual behavior (OR=4.51,1.91,0.62).@*Conclusion@#Parental psychological aggression and corporal punishment college students experienced during childhood have a negative impact on their anxiety and health risk behaviors.

Comparative study on the life satisfaction and social desirability of only and non-only children in urban and rural areas of Harbin / 中国学校卫生

Objective@#To compare life satisfaction and social desirability between only and non-only children in urban and rural areas, and to provide a basis for future mental health education guidance.@*Methods@#Stratified cluster sampling method was used to select 3 765 students of grade 4 and 5 from 9 primary schools in urban and rural area of Harbin. The contents of the questionnaires included general information survey, the Multidimensional Student’s Life Satisfaction Scale (MSLSS) and the Children’s Social Desirability Scale (CSD).@*Results@#In the overall life satisfaction, county children had the highest satisfaction (5.10±0.50), while rural children had the lowest satisfaction (4.96±0.57);The life satisfaction of girls was higher than that of boys; The life satisfaction of only children was higher than that of non-only children(F/t=17.04,-5.91,2.21,P<0.05). In terms of social desirability, the social desirability of urban children(32.33±7.04) and county children (31.78±6.30) was higher than that of rural children(30.82±6.34).The social desirability of girls was higher than that of boys, the only children was higher than that of the non-only children (P<0.05). In the overall life satisfaction and all domains of life satisfaction apart from friend life satisfaction, the life satisfaction of urban girls was higher than that of boys(P<0.05). Except for county non-only children, the social desirability of girls was higher than that of boys (P<0.05). In the overall life satisfaction and all domains of life satisfaction apart from family life satisfaction, the life satisfaction of county boys was highest among three areas (P<0.05). In all domains of life satisfaction, the life satisfaction of county girls was highest and the life satisfaction of rural girls was lowest(P<0.05). In the family life satisfaction, the life satisfaction of only boys in urban areas was higher than that of non-only boys(P=0.03). In the overall, friend, living environment and self-dimension life satisfaction, the only and non-only children in the urban, county and rural area had significant differences (P<0.05). In addition, the life satisfaction of county children was highest and the life satisfaction of rural children was lowest. The social desirability of only children in urban and county areas was higher than that of only children in rural areas.@*Conclusion@#There are differences in life satisfaction and social expectations among urban, county and rural children in Harbin. Corresponding intervention strategies should be developed when administers psychological counselling to children.

The Research of Hyaluronic Acid Functionalized Mesoporous Silica Nanoparticles MCM-41 Loading Paclitaxel for SMMC-7721 Liver Cancer Cells / 中国药学杂志

OBJECTIVE: To establish a drug delivery system based on hyaluronic acid functionalized mesoporous silica nanoparticles MCM-41 loaded with paclitaxel (HA-MCM-41-PTX). The physical and chemical properties, in vitro drug release and the antitumor effect were investigated. METHODS: The morphological structure and particle size of MCM-41 were observed by TEM. The drug delivery system was characterized by PXRD and FTIR. The in vitro release experiments was carried out to investigate the dissolution rate of HA-MCM-41-PTX. The in vitro cells experiment was carried out to explore the mechanism of HA-MCM-41-PTX on cells. RESULTS: The drug loading capacity of HA-MCM-41-PTX was 28.75%. The in vitro drug release experiments showed that HA-MCM-41-PTX exhibited controlled release with a cumulative release of (86.19±5.11)% until 48 h. In vitro cell experiments showed that HA-MCM-41-PTX had excellent targeting effect due to the modification of hyaluronic acid, which was easier to be uptaken by cells and exhibited great antitumor effect. CONCLUSION: HA-MCM-41-PTX is an excellent drug delivery system with both controlled release and targeting antitumor effect.

Behavioral and emotional health and associated factors among first-born children in Harbin / 中国学校卫生

Objective@#To compare behavioral and emotional health among first-born children and the only-child in Harbin, as well as associated factors including parents, family background, parenting and family environment.@*Methods@#A questionnaire survey was conducted for 156 parents of first-born children and the only-children, matched in age (<3 months), class and gender. Achenbach Child behavior scale (CBCL), the Self-evaluation of Anxiety Scale (SAS), the Self-rating Depression Scale(SDS), the Parents Rearing Behavior Questionnaire (CRPR) and the Family Assessment Device Scale (FAD) were used.@*Results@#There was no statistically significant difference in the scores of each dimension of children's emotional and behavioral health between the two groups(17.88±5.93)(19.13±6.01),total score(t=-0.74，P>0.05). There was no statistical difference in anxiety and depression between the two groups of parents(χ2=0.51，0.40，P>0.05); In terms of parenting style, the acceptance and encouragement achievement score for first-born children was significantly higher than that of the only child (t=2.10,2.12, P<0.05). In terms of family functions, there was no statistical difference in total function (t=-0.43, P>0.05). Behavioral problems associated with parents' anxiety, depression, parental rearing style and family function. Regression analysis showed that behavioral problems were mainly affected by sibling relationship for first-born children(B=8.74) and family role function for the only child (B=1.27).@*Conclusion@#No significant differences in behavioral and emotional health between first-born child and the only child are observed. However, harmonious sibling relationship, emotionally supportive parents and home environment could help improving behavioral and emotional health.

Herb-partition Moxibustion Relieve Colonic Inflammation in Ulcerative Colitis of DDS-induced Rats Via Dual Inhibition of NF-κB and STAT3 Activation / 世界科学技术-中医药现代化

Objective: To observe the effect of herb-partition moxibustion on colonic inflammation in UC rats, and participate in the regulation of immune regulation via NF-κB pathway and STAT3 phosphorylation. Methods: Rats were randomly divided into normal group, the ulcerative colitis group (UC) group and herb-partition moxibustion group, with 8 rats in each group. The rat model of UC was induced by 4％ DSS. After successful modeling, the rats were treated with moxibustion on bilateral Tianshu acupoints (ST25) . Each acupoint was used with 2 Zhuang moxa, 1 time a day, for 7 times. The effect of the herb-partition moxibustion on UC rats was observed by comparing the histopathological and protein concentrations of serum proinflammatory cytokine. Western Blot was used to detect NF-κB pathway and STAT3 activity in colon tissue. Results: Colonic histopathology in the UC group showed that the mucosal epithelium with ulcer formation and obvious inflammatory response. The herb-partition moxibustion could repair colonic epithelial damage and reduce the inflammatory response of colon tissue in UC rats. Compared with the normal group, the serum IL-1β and IL-6 protein concentrations were significantly increased in the UC group (P ＜ 0.05, P ＜ 0.01), and the STAT3 phosphorylation level and protein expression levels of pIκB-α and NF-κB p65 were significantly increased. The protein expression level of IκB-α was significantly decreased. Compared with the UC group, the serum protein concentrations of IL-1β and IL-6 were significantly lower in the herb-partition moxibustion group (P ＜ 0.05), and protein expression level of NF-κB p65 was decreased in the colon tissue. The phosphorylation level of pIκB-α was decreased, while the protein expression level of IκB-α was increased. Conclusion: Herb-partition moxibustion reduced colonic inflammatory response in UC rats by DSS-induced, the underlying mechanism may related to decrease release of proinflammatory cytokines IL-1β and IL-6 via dual inhibition of NF-κB and STAT3 activation.

Protective Mechanism of Preventative Moxibustion at Tianshu Acupoint (ST25) on Intestinal Barrier in UC Rats / 世界科学技术-中医药现代化

Objective: To observe the effect of anti-inflammatory by preventative moxibustion at Tianshu Acupoint (ST25) on UC rats, and to investigate the protective mechanism of preventative moxibustion at Tianshu Acupoint (ST25) onintestinal mucosal barrier in UC rats. Methods: A total of 28 male Sprague-Dawley rats were randomly divided into thenormal group (NC), the ulcerative colitis group (UC), the herb-partitioned moxibustion pretreatment group (HM+P), thewarming moxibustion pretreatment group (WM+P), with 7 in each group. The HM+P and the WM+P were treated withherb-partitioned moxibustion and warming moxibustion for 7 days before the model was established. After pretreatment, the UC, the HM+P and the WM+P were given 4％ dextran sodium sulfate solution for 7 days. Observe the rat pathologicalchanges of colon tissue by HE staining, detect the protein expression in rat colon tissue by immunohistochemistry andwestern blot. Results: compared with the NC group, the pathological scores were increased, the expression of occludin, JAM1, MUC2, ZO-1 were decreased and the expression of NF-κBp65, IL-1βincreased in UC group (P ＜ 0.05);compared with the UC group, the pathological score decreased, the protein expression of occludin, JAM1, MUC2, ZO-1 increased, the protein expression of NF-κBp65, IL-1βdecreased in HM + P group (P ＜ 0.05), the Pathological scoredecreased, the Protein expression of occludin, MUC2, ZO-1 increased, the Protein expression of IL-1β decreased inWM + P group (P ＜ 0.05) . Conclusion: The herb-partitioned moxibustion pretreatment and the warming moxibustionpretreatment could increase the expression of intestinal barrier related proteins in UC rats, it may be one of themechanisms of moxibustion to relieve colonic inflammation of UC.

Application Status and Progress of Mimicking Moxibustion in Clinical Trials of Moxibustion / 世界科学技术-中医药现代化

In recent years, with the widespread clinical application of moxibustion, the clinical trials on moxibustion research are also increasing. However, the establishment of negative control of moxibustion, also called as mimicking moxibustion, has become a major challenge in the randomized controlled trials (RCTs) . In this review, we summarized the establishment methods of mimicking moxibustion in RCTs at home and abroad, and evaluated and elaborated the design and application methods of mimicking moxibustion models from thermal effect, light radiation effect and smoke effect that generated by moxibustion, in order to provide insights for the establishment of an ideal and feasible mimicking moxibustion model in future RCTs of moxibustion.

Expressions and roles of three inflammatory cytokines in chronic hepatitis B patients with nonalcoholic fatty liver disease / 中华传染病杂志

Objective To investigate the roles of cytokeratin 18 (CK18) M30 and M65,thymosin beta 4 (Tβ4) and tumor necrosis factor (TNF)-α in hepatic steatosis and development of inflammatory and fibrosis in chronic hepatitis B (CHB) patients with nonalcoholic fatty liver disease (NAFLD).Methods A total of 46 CHB patients with NAFLD and 42 CHB patients were collected.Serum CK-18 M30,M65,Tβ4 and TNF-α levels were measured by enzyme linked immunosorbent assay (ELISA) in two groups.The associations between inflammatory factors levels and biochemical or pathological indicators were analyzed.The statistical analysis was conducted by t test and chi square test of two independent samples.The correlation analysis was performed by Pearson and Logistic regression analysis.Results The mean serum CK 18 M30 level in CHB with NAFLD group was (614.48±471.43) U/L,which was significantly higher than that in CHB group (374.50±231.04) U/L (t=2.988,P＜0.01).The mean levels of CK18 M65,Tβ4 and TNF-α in CHB with NAFLD group were (369.41±262.21) U/L,(0.80±0.32) mg/L and (54.87±20.36) ng/L,respectively,and those in CHB group were (296.50±231.44) U/L,(0.68±0.30) mg/L and (51.88± 20.60) ng/L,respectively.There were no difference between CHB with NAFLD group and CHB group (t=1.378,1.810 and 0.685,respectively,all P＞0.05).In CHB with NAFLD patients,the CK-18 M30 level was positively correlated with alanine aminotransferase,triglyceride,fasting blood glucose,histology inflammation score,fibrosis score and steatosis (r=0.507,0.456,0.384,0.551,0.458 and 0.457,respectively,all P＜0.01).Tβ4 level was negatively correlated with inflammation and fibrosis score (r=0.371 and-0.308,respectively,P＜0.05).TNF-α level was positively correlated with inflammation score and steatosis (r=0.570 and 0.441,respectively,P＜0.01).CK-18 M30,Tβ4 and TNF-α were independent predictors of CHB combined with NAFLD,progressive inflammatory fibrosis and severe steatosis.Conclusions Serum CK-18 M30,Tβ4 and TNF-α levels are associated with hepatic steatosis,development of inflammation and fibrosis in CHB with NAFLD patients.

Preformulation study of curcumenol / 国际药学研究杂志

Objective To study the physical- chemical parameters of curcumenol so as to design its optimal preparations. Methods An HPLC method was established to determine the content of curcumenol. Based on the method, the equilibrium solubility, oil/water partition coefficient and stability of curcumenol were investigated. Results The equilibrium solubility in the pure water was 1.93 mg/ml (25 °C) and 2.6 mg/ml (37°), respectively. The oil/water partition coefficient was in the range of 2.2-3.0. Curcumenol solution was unstable at high temperature under light conditions, while pH value showed little effect. Conclusion The analytical method is accurate and reliable. The solubility of curcumenol can be described as strong lipotropic and slightly soluble in water. Nanoformulation and solubilization technologies could improve its bioavailability significantly. Curcumenol should be stored and operated in a dark and cool place.

Preformulation study of curcumenol / 国际药学研究杂志

Objective To study the physical-chemical parameters of curcumenol so as to design its optimal preparations. Methods An HPLC method was established to determine the content of curcumenol. Based on the method,the equilibrium solubility, oil/water partition coefficient and stability of curcumenol were investigated. Results The equilibrium solubility in the pure water was 1.93 mg/ml(25℃)and 2.6 mg/ml(37℃),respectively. The oil/water partition coefficient was in the range of 2.2-3.0. Curcumenol solution was unstable at high temperature under light conditions,while pH value showed little effect. Conclusion The analytical method is accurate and reliable. The solubility of curcumenol can be described as strong lipotropic and slightly soluble in water. Nano-formulation and solubilization technologies could improve its bioavailability significantly. Curcumenol should be stored and operated in a dark and cool place.

Thinking and Prospects of Ancient and Modern Researches on Moxibustion Treatment for Inflammatory Bowel Disease (IBD) / 世界科学技术-中医药现代化

By means of searching the ancient and modern literature,this study mainly investigated the etiology and pathogenesis of IBD,summarized the rules of acupoint selection and the experimental mechanism of the moxibustion treatment for IBD,providing the basis and theoretical evidence of acupoint selection and moxibustion therapy for clinical practice and studies.Ancient literatures were retrieved in TCM database system,while modern literatures in Pubmed,CNKI and VIP database from January,2005 to January,2016.Finally,comprehensive analysis was implemented among the selected literatures.It was found that the pathogenesis of IBD was associated with exogenous evils,diet,emotion,and fatigue during chronic diseases in TCM.The treatments of acupuncture and moxibustion for IBD should consider both the primary symptoms and root causes by regulating functional activity of Zang and Fu and also warming and nourishing the spleen and stomach.On this basis,acupoint selection mainly focused on the stomach meridian with the functions of invigorating spleen and stomach,elevating clear qi and descending turbid,recovering the bowel function and strenthening the body and antidiarrhea.Modern research upon the scientific basis of TCM indicated that moxibustion stimulated the thermoreceptors around the acupoints leading to the increased degranulation of mast cells.Immune factors were impacted with the regulation of transcriptional activators in the bowel for repairing mucosal barrier and preventing intestinal fibrosis in IBD.In conclusion,moxibustion was effective on warming and nourishing spleen and stomach and regulating the function activity of bowel for the prevention and treatment of IBD.Achievements were made in the mechanism researches on IBD based on the TCM theory.However,some profound mechanisms need in-depth exploring.

Hepatotoxicity study of extracts and main components in Polygonum multijiorum using high content analysis / 中草药

Objective: A high-content analysis (HCA) method was established for the in vitro evaluation of traditional Chinese medicine and the potential hepatotoxicity components and mechanism of Polygonum multijiorum were discussed. Methods: HepG2 cells were incubated with different concentration and different incubation time of P. multijiorum extracts and components and then cells were stained with three fluorescent probes, then HCA was applied to detect the cell number, nucleus area, mitochondrial mass, and mitochondrial membrane potential. Results: The ethyl acetate extract and dichloromethane extract had served hepatotoxicity. No significant changes were observed at low concentration (0.01 and 1 μmol/L) of P. multijiorum components; However, the cell number of aloe emodin, emodin, rhein, and gallic acid decreased significantly at the concentration of 0.1 μmol/L. Aloe emodin also caused the nuclear swollen. The TC50 values of emodin and rhein obtained from the dose-response curves were similar to the previous reports. Conclusion: The aloe emodin, emodin, rhein, and gallic acid have potential hepatotoxicity that P. multijiorum induces liver injury. The hepatotoxicity of P. multijiorum may be related to mitochondria-mediated apoptosis according to the influence of P.multijiorum components on mitichondrial mass and mitochondrial membrane potential from the results. The HCA is applicable to evaluate the hepatotoxicity of traditional Chinese medicine.

Expression of tumor CD90 in hepatocellular carcinoma and its relationship with epithelial mesenchymal transition / 中华消化杂志

Objective To investigate the expression of stem cell associated protein CD90 in primary hepatocellular carcinoma (HCC) and its relationship with clinical pathological characters ;to analyze the relation between CD90 and epithelial mesenchymal transition (EMT) markers E‐cadherin (E‐cad) and N‐cadherin (N‐cad) .Methods The expressions of CD90 ,E‐cad and N‐cad in 53 tissues of HCC were detected by immunohistochemistry streptavidin‐perosidase (SP ) method , and 10 surrounding of liver benign lesions were studied as control .The expression of E‐cad and N‐cad in CD90 positive cells of two HCC cell lines (M HCC97‐L and HCCLM‐3 ) was measured by flow cytometry .Chi square test and Spearman rank correlation analysis were performed for count data .Independent sample t test was used for measurement data comparison .Results There was no CD90 expression in control liver tissue . The positive rate of CD90 expression in HCC tissue was (34% ,18/53) ,and the difference between two groups was statistically significant (χ2 = 4 .755 , P< 0 .05) .The expression of CD90 in HCC was positively correlated with portal vein cancer embolus (r= 0 .378 , P< 0 .05) and was negatively correlated with histological differentiation degree and capsular infiltration (r= -0 .398 and -0 .519 ,both P<0 .05) .The expression of CD90 was negatively correlated with the expression of E‐cad (r= -0 .341 , P<0 .05) ,however was positively correlated with the expression of N‐cad (r=0 .441 ,P<0 .05) .The positive expression rate of E‐cad in CD90 positive HCCLM‐3 cells was lower than that of MHCC97‐L cells ((2 .56 ± 0 .29)% and (4 .31 ± 0 .18)% ,t= 8 .757 ,P< 0 .05) ,while the positive expression rate of N‐cad was higher than that of MHCC97‐L cells ((8 .10 ± 1 .45)% and (5 .51 ± 0 .44)% ,t= -9 .667 ,P<0 .05) .Conclusions The expression of stem cell associated protein CD90 is correlated with the EMT of HCC .Their interaction promote tumor infiltration metastasis w hich may be a new target of HCC treatment .

Study on prenatal diagnosis of fetal malformations of cortical development by ultrasonography / 中华超声影像学杂志

Objective To explore sonographic manifestation of fetal malformations of cortical development.Methods From August 2012 to January 2014 three hundred and twenty-five pregnancy women referred to our institution for fetal brain MRI,which were diagnosed or suspected of central nervous system abnormalities by prenatal ultrasound examination.Results In 325 of cases,14 cases (4％) were diagnosed of malformations of cortical development.Ten eases were indicated by prenatal ultrasound,including three cases of heterotopic gray matter,six cases of microcephaly and one case of hemimegalencephaly; four cases were missed by prenatal ultrasound,including two cases of schizencephaly,one case of tuberous sclerosis,and one case of hypoplasia.Conclusions Cortical malformations can be diagnosed by prenatal ultrasonography based on typical imaging characteristics.Prenatal ultrasound combined with MRI is a powerful tool in diagnosing fetal malformations of cortical development.

Exploration and practice of teaching reform in training of doctors in hospitals at primary level / 中华医学教育探索杂志

Intensifying the continuing education of doctors in hospitals at primary level is one of the important measures for increasing their specialized skills and improving the condition of primary care.In recent years,following the trend of national medical reform,the Fourth Military Medical University (FMMU) has made full use of its advantages to provide training for civilian doctors in hospitals at primary level.In the training,with the reform measures of ‘ four focuses' and ‘ five combinations',FMMU actively advanced teaching reform to make innovations in curriculum system and teaching methods,which was approved by teachers and students.These measures were very effective,which in turn greatly enhanced the ability of the doctors and training quality.This practice obviously pushed forward development of primary-level medical and health-care service in Shanxi province.

Expression and significance of osteopontin and muscle segment homeobox gene Msx2 in sinonasal inverted papilloma / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To investigate the expression level and significance of osteopontin (OPN) and muscle segment homeobox2 (Msx2) in sinonasal inverted papilloma (SNIP), and the relationship with the process of SNIP malignant transfomation.@*METHOD@#Immunohistochemical method was used to detect the expression of osteopontin and Msx2 in 32 cases of sinonasal inverted papilloma (SNIP), 30 cases of inflammatory nasal polyp paraffin tissue (INP) and 30 cases of sinonasal inverted papilloma with carcinoma. According to the pathology results SNIP were divided into mild dysplasia, moderate dysplasia, severe dysplasia. All the datas were analyzed by SPSS13.0.@*RESULT@#The positive expression of OPN and Msx2 in the SNIP with carcinoma were all 100% (30/30), were significantly higher than the SNIP and INP, and the pairwise comparisons were all statistically significant (P < 0.05). The expression of OPN and Msx2 in the SNIP were divided according to pathological. There was significant difference between mild dysplasia and severe dysplasia group (P < 0.05), while there were not significant difference between light degree of dysplasia and moderate dysplasia group, moderate dysplasia and severe dysplasia group. And the expression of OPN and Msx2 was positively correlated in SNIP (P < 0.01).@*CONCLUSION@#OPN and Msx2 may play an important role in the pathway of progression of SNIP, which may be identified as the new therapeutic targets.

Application of autogenous bone pate for atticus reconstruction and mastoid cavity obliteration in tympanoplasty with mastoidectomy / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To observe the curative effect of autogenous bone pate for atticus reconstitution and mastoid cavity obliteration in canal wall down mastoidectomy with tympanoplasty.@*METHOD@#The 60 patients (60 ears) of cholesteatomatous tympanitis were randomly divided into 2 groups. The experimental group underwent canal wall down mastoidectomy with tympanoplasty and using autogenous bone pate for atticus reconstitution and mastoid cavity obliteration. The control group only underwent canal wall down mastoidectomy with tympanoplasty. All patients were followed up for 0.5-2 years. Improvement of hearing and dry ear time in these two groups was retrospectively observed.@*RESULTS@#There are significant difference between two groups in improvement of hearing and dry ear time, according to follow-up and analysis of therapeutic efficacy (P < 0.05).@*CONCLUSION@#Hearing can be improved, dry ear time can be shorten and correlative complication can be decreased by atticus reconstruction and mastoid cavity obliteration with autogenous bone pate in canal wall down mastoidectomy with tympanoplasty, which guarantees the normal activity space of auditory bone chain.