Effectiveness research of opportunistic screening for osteoporosis based on chest CT and deep convolutional neural network / 实用放射学杂志

Objective To analyze the feasibility and efficacy of a deep convolutional neural network(DCNN)model based on chest CT images to evaluate bone mineral density(BMD).Methods A total of 1 048 health check subjects'2 096 central level images of lumbar 1 and 2 vertebral bodies were used for experiments and analysis in this retrospective study.According to the results of quanti-tative computed tomography(QCT)BMD measurement,the subjects were divided into three categories:normal,osteopenia,osteopo-rosis(OP).Herein,a DCNN segmentation model was constructed based on chest CT images[training set(n=1 096),tuning set(n=200),and test set(n=800)],the segmentation performance was evaluated using the Dice similarity coefficient(DSC)to com-pare the consistency with the manually sketched region of vertebral body.Then,the DCNN classification models 1(fusion feature construction of lumbar 1 and 2 vertebral bodies)and model 2(image feature construction of lumbar 1 alone)was developed based on the training set(n=530).Model performance was compared in a test set(n=418)by the receiver operating characteristic(ROC)curve analysis.Results When the number of images in the training set(n=300)was adopted,the DSC value was 0.950 in the test set.The results showed that the sensitivity,specificity and area under the curve(AUC)of model 1 and model 2 in diagno-sing osteopenia and OP were 0.716,0.960,0.952;0.941,0.948,0.980;0.638,0.954,0.940;0.843,0.959,0.978,respectively.The AUC value of normal model 1 was higher than that of model 2(0.990 vs 0.983,P=0.033),while there was no significant difference in AUC values between osteopenia and OP(P=0.210,0.546).Conclusion A DCNN may have the potential to evaluate bone mass based on chest CT images,which is expected to become an effective tool for OP screening.

Treatment of Endometriosis from the Perspective of "Retention due to Deficiency Qi" / 中医杂志

It is believed that retention due to deficient qi is an important pathogenesis of endometriosis （EMs）. Deficient qi is the root of the disease， mainly manifested as spleen deficiency， while retention is the branch pathogenesis of the disease， mainly with blood stasis， complicated with constraint， phlegm， heat， toxin and other pathological factors. Therefore， it is proposed to follow the treatment principle of supplementing deficiency and unblocking stagnation， and take the methods of replenishing qi and fortifying the spleen， removing stasis and eliminating concretions. Self-made Fuzheng Huayu Formula （扶正化瘀方） is taken as the basic formula， and can be modified with the symptoms in menstrual and non-menstrual periods. Additionally， the methods of moving qi， dispelling phlegm， clearing heat， relieving toxin and others can be combined， and it is recommended to treat the root and the branch simultaneously.

Research advances in lean nonalcoholic fatty liver disease / 临床肝胆病杂志

Nonalcoholic fatty liver disease （NAFLD） is currently the main cause of chronic liver disease worldwide， and it can progress to hepatitis， liver fibrosis， liver cirrhosis， and even hepatocellular carcinoma. Although obesity plays a key role in the development of NAFLD， more and more studies have confirmed that NAFLD still exists in lean individuals， and lean NAFLD is associated with an increased risk of death and accelerated disease progression. Therefore， lean NAFLD also deserves careful evaluation and follow-up； however， we still know little about the pathophysiological mechanism of lean NAFLD. This article reviews the etiology， diagnosis， treatment， and prognosis of lean NAFLD.

Comparative analysis of clinical laboratory indicators between Kawasaki disease and systemic juvenile idiopathic arthritis / 中国基层医药

Objective:To explore the differences of clinical laboratory indicators between Kawasaki disease (KD) and systemic juvenile idiopathic arthritis (SJIA), providing objective evidence for diagnosis and differential diagnosis of these diseases.Methods:A total of 41 children patients with KD (KD group) and 33 children patients with SJIA (SJIA group) who received treatment in Huainan Maternal and Child Health Hospital between September 2017 and January 2022 were retrospectively analyzed. An additional 50 healthy children who concurrently received physical examination in the same hospital were included in the control group. Platelet count (PLT), white blood cell count (WBC), and erythrocyte sedimentation rate (ESR) as well as C-reactive protein (CRP), serum procalcitonin (PCT), interleukin-6 (IL-6), interleukin-10 (IL-10), and serum ferritin (SF) levels were compared among groups before treatment.Results:One-way analysis of variance and pairwise q test were performed to compare laboratory indicators among KD, SJIA and control groups. CRP, ESR, SF and IL-6 levels in the KD group were significantly lower than those in the SJIA group [CRP: (57.80 ± 25.23) mg/L vs. (77.72 ± 45.64) mg/L; ESR: (67.02 ± 28.80) mm/h vs. (83.84 ± 47.64) mm/h; SF: (320.21 ± 182.53) μg/L vs. (945.58 ± 604.65) μg/L; IL-6: (50.35 ± 20.54) ng/L vs. (89.35 ± 45.54) ng/L, q = 4.34, 3.42, 11.51, 8.85, all P < 0.05]. IL-10 level in the KD group was significantly higher than that in the SJIA group [(18.52 ± 16.71) ng/L vs. (10.01 ± 3.24) ng/L, q = -5.25, P < 0.05]. WBC, CRP, ESR, PCT, PLT, IL-6, IL-10 and SF in the KD and SJIA groups were significantly higher than those in the control group (all P < 0.05). Conclusion:Detection of CRP, ESR, SF, IL-6, IL-10 in blood can provide objective evidence for the early diagnosis and differential diagnosis of KD and SJIA, thereby reducing the misjudgment of clinical diagnosis.

Serum molecular tumor markers:from mining to clinical application / 中华检验医学杂志

In recent years, with the rapid development of molecular diagnostic technology, more and more serum molecular tumor markers have been found and been used in the tumor prevention, diagnosis, treatment, prognosis assessment and relapse monitoring. However, each laboratory techniques and molecular markers has its own advantages and limitations. How to choose the appropriate laboratory technology and tumor markers is a hot topic in clinical practice.

Bibliometrics and visualization analysis of land use regression models in ambient air pollution research / 中华流行病学杂志

Objective: To quantitatively analyze the current status and development trends regarding the land use regression (LUR) models on ambient air pollution studies. Methods: Relevant literature from the PubMed database before June 30, 2017 was analyzed, using the Bibliographic Items Co-occurrence Matrix Builder (BICOMB 2.0). Keywords co-occurrence networks, cluster mapping and timeline mapping were generated, using the CiteSpace 5.1.R5 software. Relevant literature identified in three Chinese databases was also reviewed. Results: Four hundred sixty four relevant papers were retrieved from the PubMed database. The number of papers published showed an annual increase, in line with the growing trend of the index. Most papers were published in the journal of Environmental Health Perspectives. Results from the Co-word cluster analysis identified five clusters: cluster#0 consisted of birth cohort studies related to the health effects of prenatal exposure to air pollution; cluster#1 referred to land use regression modeling and exposure assessment; cluster#2 was related to the epidemiology on traffic exposure; cluster#3 dealt with the exposure to ultrafine particles and related health effects; cluster#4 described the exposure to black carbon and related health effects. Data from Timeline mapping indicated that cluster#0 and#1 were the main research areas while cluster#3 and#4 were the up-coming hot areas of research. Ninety four relevant papers were retrieved from the Chinese databases with most of them related to studies on modeling. Conclusion: In order to better assess the health-related risks of ambient air pollution, and to best inform preventative public health intervention policies, application of LUR models to environmental epidemiology studies in China should be encouraged.

Ultrasonographic diagnosis of deep infiltrating endometriosis with involvement of pelvic tissues / 中国医学影像技术

Objective To explore the diagnostic value of ultrasonography in diagnosing deep infiltrating endometriosis (DIE) with involvement of pelvic tissues.Methods Data of 118 DIE patients confirmed with surgery and pathology who underwent transvaginal ultrasonography before surgery were retrospectively analyzed.Taking surgical and pathologic findings as the gold standards,the sensitivity,specificity,positive predictive value (PPV) and negative predictive value (NPV) of ultrasonography in diagnosis of DIE with involvement of uterosacral ligament,intestine,vaginal rectal septum,vagina,bladder and ureter were calculated,respectively.Results Uterosacral ligament involvement was found in 85 patients,with sensitivity of 95.29％ (81/85) and specificity of 90.91％ (30/33).Intestinal involvement was observed in 60 patients,with sensitivity of 98.33％ (59/60) and specificity of 91.38％ (53/58).Vaginal rectal septum involvement was noticed in 39 patients,with sensitivity of 79.49％ (31/39) and specificity of 92.41％ (73/79).Vaginal involvement was detected in 18 patients,with sensitivity of 55.56 ％ (10/18) and specificity of 96.00 ％ (96/100).Bladder involvementwas found in 17 patients,with sensitivity of 76.47％ (13/17) and specificity of 94.06％ (95/101).Ureter involvement was also found in 9 patients,with sensitivity of 100％ (9/9) and specificity of 99.08％ (108/109).Conclusion Transvagina ultrasonography has great value in diagnosis of DIE with involvement of pelvic tissues.

Bibliometrics and visualization analysis of land use regression models in ambient air pollution research / 中华流行病学杂志

Objective To quantitatively analyze the current status and development trends regarding the land use regression (LUR) models on ambient air pollution studies.Methods Relevant literature from the PubMed database before June 30,2017 was analyzed,using the Bibliographic Items Co-occurrence Matrix Builder (BICOMB 2.0).Keywords co-occurrence networks,cluster mapping and timeline mapping were generated,using the CiteSpace 5.1.R5 software.Relevant literature identified in three Chinese databases was also reviewed.Results Four hundred sixty four relevant papers were retrieved from the PubMed database.The number of papers published showed an annual increase,in line with the growing trend of the index.Most papers were published in the journal of Environmental Health Perspectives.Results from the Co-word cluster analysis identified five clusters:cluster #0 consisted of birth cohort studies related to the health effects of prenatal exposure to air pollution;cluster #1 referred to land use regression modeling and exposure assessment;cluster #2 was related to the epidemiology on traffic exposure;cluster #3 dealt with the exposure to ultrafine particles and related health effects;cluster #4 described the exposure to black carbon and related health effects.Data from Timeline mapping indicated that cluster #0 and #1 were the main research areas while cluster #3 and #4 were the up-coming hot areas of research.Ninety four relevant papers were retrieved from the Chinese databases with most of them related to studies on modeling.Conclusion In order to better assess the health-related risks of ambient air pollution,and to best inform preventative public health intervention policies,application of LUR models to environmental epidemiology studies in Chinashould be encouraged.

Risk factors for ovarian metastasis in endometrial carcinoma:a Meta analysis / 重庆医学

Objective To systematically evaluate the risk factors for ovarian metastasis of endometrial carcinoma(EC) to provide an evidence-based medicine basis for formulating the EC surgical mode and ovarian metastatic risk.Methods Studies about the risk factors for EC ovarian metastasis were retrieved by computer from the Pubmed,Embase,Cochrane Library,WanFang database,CNKI,China Biology Medicine(CBM) from Jan.1,1990 to Sep.1,2016.The quality evaluation of included literature was performed by using the Newcastle-Ottawa Scale(NOS).Results A total of 13 studies were included,involving 6 140 EC patients,of whom 344 cases(5.60％) had ovarian metastasis.The Meta analysis results showed that a total of 9 factors had statistical significance,which were deep myometrial infiltration(OR =0.28,95 ％ CI:0.21-0.39),cervical involvement (OR =0.27,95 ％ CI:0.16-0.45),lymph node involvement (OR =0.21,95 ％ CI:0.15-0.27),fallopian tube involvement (OR =0.05,95 ％ CI:0.02-0.10),non-endometrioid adenocarcinoma(OR=0.32,95％CI:0.24-0.43),low differentiation(OR=0.39,95％CI:0.31-0.50),positive ascites cytologic detection(OR=0.14,95％CI:0.09-0.20),high serum CA125 level(OR=0.12,95％CI:0.08-0.19) and lymphovascular cancer embolus(OR =0.34,95 ％ CI:0.23-0.50),the differences were statistically significant(P＜0.05).But the age,lesion location,lesion diameter and estrogenic receptor level had no statistical difference(P＞0.05).Conclusion Deep myometrial infiltration,cervical involvement,lymph node involvement,fallopian tube involvement,non-endometrioid adenocarcinoma,low differentiation and positive ascites cytologic detection,high CA125 level and lymphovascular cancer embolus are the risk factors for EC ovarian metastasis.

Overexpression of MST1 inhibits the proliferation , migration and invasion of cervical cancer cell line SiHa / 基础医学与临床

Objective To discuss the effect of MST1 (mammalian sterile 20-like kinase 1,MST1) on the prolifera-tion,migration and invasion of SiHa cervical cancer .Methods Western blot was used to detect the expression of MST1 in cervical epithelial cells H8 and cervical cancer cells SiHa;PJ3H-HA-MST1 was constructed and transfect-ed it to SiHa cells by Lipofectamine TM3000;MST1, Ki-67 and MMP9 protein expression were evaluated by Western blot;While the proliferation ,migration and invasion of SiHa cell were assessed by MTS ,scratch adhesion test and Transwell assay respectively .Results Compared SiHa cells with H 8 cells,MST1 expression in SiHa cells was sig-nificantly lower than that in H8 cells.The plasmid was successfully transfected into SiHa cells , MST1 expression was significantly higher , while the expression of Ki-67 and MMP9 was lower .The proliferation , migration and inva-sion ability were all significantly suppressed .Conclusions Overexpression of MST1 can inhibit the proliferation , migration and invasion of cervical cancer cell line SiHa .

Antimicrobial resistance profile of the gram-negative bacilli isolated from urinary tract infections / 中国感染与化疗杂志

Objective? To?investigate?the?antimicrobial?resistance?and?beta-lactamase?production?profile?in?the?gram-negative?bacilli?isolated from urinary tract infections in the Second People's Hospital of Gansu Province during the period from 2014 to 2015. The results will provided to clinicians for better antimicrobial treatment. Methods? The?bacterial?isolates?were?identified?via?conventional?laboratory?tests?or?automatic?identification?systems?and?subjected?to?antimicrobial?susceptibility?testing?by?using?Kirby-Bauer?method.?Three-dimensional test was used to detect the enzymes conferring antimicrobial resistance. The susceptibility testing results were interpreted according to the CLSI breakpoints issued in 2012. Results A total of 987 gram-negative strains were isolated from urinary tract infections, including E. coli (51.6%, 509/987), Enterobacter (11.0%, 109/987), P. aeruginosa (10.5%, 104/987), K. pneumoniae (9.9%, 98/987), P. mirabilis (9.3%, 92/987), C. freundii (4.7%, 46/987), and other gram-negative bacilli (2.9%, 29/987). ESBLs were produced?in?494?(50.1?%)?of?the?987?strains?of?gram?negative?bacilli.?Preliminary?screening?test?identified?243?AmpC?beta-lactamases?producing?strains,?and?135?(13.7?%)?strains?were?confirmed?by?three-dimensional?test.?Both?ESBLs?and?Amps?beta-lactamases?were?produced in 16 (1.6%) strains. The prevalence of ESBLs-producing strains was 79.6% in E. coli, 34.6% in P. aeruginosa and 37.8% in K. pneumoniae?isolates.?Metallo-β-lactamase?or?KPC?beta-lactamase?was?not?identified.?The?antimicrobial?resistance?was?serious?in?gram-negative bacilli, which showed relatively low resistance rate to imipenem (0.02%), amikacin (10.6%), cefoperazone-sulbactam (23.8 %), and nitrofurantoin (25.2 %). E. coli prevalence of levofloxacin,?ciprofloxacin?resistance?respectively?were?89.8%,?91.8%. The gram-negative bacilli from urinary tract also showed various levels of resistance to cephalosporins. Conclusions The gram-negative bacilli isolated from urinary tract infections are mainly E. coli. The gram-negative isolates show high level antimicrobial resistance and high prevalence of beta-lactamases. Imipenem, amikacin, cefoperazone-sulbactam, and nitrofurantoin still have very high antibacterial activity against these isolates in vitro.

Discussion on the Name of Chinese Herbal Pieces in the 2015 Edition of Chinese Pharmacopoeia( Part One) / 中国药房

OBJECTIVE:To put forward a proposal for the name standardization of Chinese herbal pieces. METHODS:Through searching literatures and analyzing each edition of Chinese Pharmacopoeia,the existing problems about the name of Chi-nese herbal pieces in the 2015 edition of Chinese Pharmacopoeia were found out to put forward solutions. RESULTS & CONCLU-SIONS:There are many non-standard problems,such as non-standard name of crude Chinese herbal pieces,non-standard name of processed Chinese herbal pieces,jingandganadded before the name of Chinese herbal pieces,pianadded after the name of Chinese herbal pieces. Based on these problems,suggestions for naming processed and non-processed Chinese herbal pieces were put forward,including noting processing method before the name of Chinese herbal medicines,adding processed form name after the name of Chinese herbal medicines,adding accessories name before the name of Chinese herbal medicines,maintaining the consistency and completeness of the names of Chinese herbal pieces and medicines,must markingshengwhen using toxic Chi-nese medicine pieces in medical treatment,and no appearing of the tablets in the name,etc.

Applying temporally-adjusted land use regression models to estimate ambient air pollution exposure during pregnancy / 中华预防医学杂志

The impact of maternal air pollution exposure on offspring health has received much attention. Precise and feasible exposure estimation is particularly important for clarifying exposure-response relationships and reducing heterogeneity among studies. Temporally-adjusted land use regression (LUR) models are exposure assessment methods developed in recent years that have the advantage of having high spatial-temporal resolution. Studies on the health effects of outdoor air pollution exposure during pregnancy have been increasingly carried out using this model. In China, research applying LUR models was done mostly at the model construction stage, and findings from related epidemiological studies were rarely reported. In this paper, the sources of heterogeneity and research progress of meta-analysis research on the associations between air pollution and adverse pregnancy outcomes were analyzed. The methods of the characteristics of temporally-adjusted LUR models were introduced. The current epidemiological studies on adverse pregnancy outcomes that applied this model were systematically summarized. Recommendations for the development and application of LUR models in China are presented. This will encourage the implementation of more valid exposure predictions during pregnancy in large-scale epidemiological studies on the health effects of air pollution in China.

Effects of comprehensive treatment of aerobic exercise and medicine on levels of serum immunoglobulins and cytokines in rats with chronic abacterial prostatitis / 重庆医学

Objective To observe the effects of comprehensive treatment of aerobic exercise and medicine on the levels of serum immunoglobulins and cytokines in rats with chronic abacterial prostatitis (CAP).Methods Forty healthy adult male SD rats were randomly divided into the normal control group,CAP model control group,exercise treatment group,medicine treatment group and exercise and medicine comprehensive treatment group,8 cases in each group.The CAP rat model was prepared by the injection of Xiaozhiling,and after 7 d of rat model construction,the exercise treatment group and exercise and medicine comprehensive treat ment group conducted once swimming exercise at fixed time every day,6 d per week for 4 continuous weeks;the medicine treatment group and exercise and medicine comprehensive treatment group were given Qianlieshutong Capsule aqueous solution for gavage treatment every day;the normal control group,model control group and exercise treatment group performed gastric gavage with sterile normal saline.On 14,28 d of the treatment process the rats in each group were sacrificed.The indicators such as serum immunoglobulins and cytokines in rats were detected by using ELISA.Results On 14 d,compared with the normal control group,the levels of serum IgG,IgA,IgM,TNF-α,IL-1β and IL-6 in each experimental group were increased significantly (P＜ 0.05),while which had no statistically significant difference between the exercise treatment group and model control group and between the comprehensive treatment group and medicine treatment group(P＞0.05);on 28 d,the levels of IgG,IgM,TNF-α,IL-1β and IL-6 in the exercise treatment group were significantly lower than those in the model control group(P＜0.05),the levels of IgG,IgA,TNF-α,IL-1β and IL-6 in the comprehensive treatment group were significantly lower than those in the medicine treatment group (P＜0.05),moreover were close to those in the normal control group(P＞0.05).Conclusion Aerobic exercise can reduce the levels of serum immunoglobulins and cytokines in CAP rats,and the effect is more obviousin CAP rats treated by comprehensive therapy combined with medicine.

Effects of comprehensive treatment of aerobic exercise and medicine on levels of serum immunoglobulins and cytokines in rats with chronic abacterial prostatitis / 重庆医学

Objective To observe the effects of comprehensive treatment of aerobic exercise and medicine on the levels of serum immunoglobulins and cytokines in rats with chronic abacterial prostatitis (CAP).Methods Forty healthy adult male SD rats were randomly divided into the normal control group,CAP model control group,exercise treatment group,medicine treatment group and exercise and medicine comprehensive treatment group,8 cases in each group.The CAP rat model was prepared by the injection of Xiaozhiling,and after 7 d of rat model construction,the exercise treatment group and exercise and medicine comprehensive treat ment group conducted once swimming exercise at fixed time every day,6 d per week for 4 continuous weeks;the medicine treatment group and exercise and medicine comprehensive treatment group were given Qianlieshutong Capsule aqueous solution for gavage treatment every day;the normal control group,model control group and exercise treatment group performed gastric gavage with sterile normal saline.On 14,28 d of the treatment process the rats in each group were sacrificed.The indicators such as serum immunoglobulins and cytokines in rats were detected by using ELISA.Results On 14 d,compared with the normal control group,the levels of serum IgG,IgA,IgM,TNF-α,IL-1β and IL-6 in each experimental group were increased significantly (P＜ 0.05),while which had no statistically significant difference between the exercise treatment group and model control group and between the comprehensive treatment group and medicine treatment group(P＞0.05);on 28 d,the levels of IgG,IgM,TNF-α,IL-1β and IL-6 in the exercise treatment group were significantly lower than those in the model control group(P＜0.05),the levels of IgG,IgA,TNF-α,IL-1β and IL-6 in the comprehensive treatment group were significantly lower than those in the medicine treatment group (P＜0.05),moreover were close to those in the normal control group(P＞0.05).Conclusion Aerobic exercise can reduce the levels of serum immunoglobulins and cytokines in CAP rats,and the effect is more obviousin CAP rats treated by comprehensive therapy combined with medicine.

Effects of Danhongtongjing formula combined with levofloxacin on serum cytokines in patients with chronic prostatitis / 中国生化药物杂志

Objective To investigate the effect of Danhongtongjing formula combined with levofloxacin on serum cytokines in patients with chronic prostatitis. Methods 74 cases of patients with chronic prostatitis from May 2014 to April 2016 in our hospital were selected,and randomly divided into two groups,37 cases in each groups.The control group treated with levofloxacin,the observation group were treated with Danhongtongjing formula The observation group on the based of control group.The clinical symptoms,TCM syndrome and the changes of SIgA,VCAM-1 and serum VCAM-1 in prostatic fluid of two groups were compared. Results The total effective rate was 94.59% in the observation group and 78.38%in the control group,the difference was statistically significant (P<0.05).After treatment,the NIH-CPSI index of the two groups was significantly decreased,and the observation group was lower than the control group,the difference was statistically significant (P<0.05);the TCM syndrome score of both groups decreased,and the observation group was lower than the control group,the difference was statistically significant (P<0.05).The total effective rate of TCM Syndrome in observation group was 91.89%,which was significantly higher than that of the control group 72.97%,the difference was statistically significant (P<0.05).After treatment,the levels of SIgA,VCAM-1 and serum VCAM-1 in prostatic fluid were decreased,and the observation group was lower than the control group,the difference was statistically significant (P<0.05). Conclusion Danhongtongjing formula combined with levofloxacin in the treatment of chronic prostatitis patients with significant effect,can effectively regulate serum cytokines, control inflammation, improve the treatment efficiency.

Prenatal nicotine exposure induces cardiac fibrosis in adult male offspring / 中国药理学与毒理学杂志

OBJECTIVE To investigate the effect of prenatal nicotine exposure on cardiac ejection function and myocardial fibrosis of the offspring of rats.METHODS Pregnant rats were sc given nicotine 6.0 mg· kg-1,once daily for 17 d.The body mass and heart mass of the offspring were detected at the 21th day of gestation,and 15 and 90 d after birth.Heart rate of 90 d offspring was recorded by ECG,and cardiac functions were detected by Doppler ultrasonography,including cardiac output (CO),stroke volume (SV),ejection fraction (EF),left ventricular long axis shortening fraction (FS),interventricular septum diastolic diameter (IVSd) and left ventricular posterior wall diastolic diameter (LVPWd).The myocardial ultrastructure was detected under an electron microscope.Masson staining was used to detect the myocardial collagen fiber deposition.The level of collagen protein type Ⅰ in heart tissue was detected by radioimmunoassay.RESULTS Compared with control group,prenatal nicotine exposure resulted in a decrease of heart mass and body mass in groups of 21 d fetal rats and 15 d offspring(P＜0.05,P＜0.01),but had no effect on the 90 d offspring.Compared with the normal control group,the heart rate of 90 d offspring increased [366+10 vs (418+10) min-1] (P＜0.05),CO,FS and EF decreased (P＜0.01),and IVSd and LVPWd increased (P＜0.05,P＜0.01).Electron microscopy revealed that in the heart of nicotine 90 d offspring,myocardial fiber arrangement was loosened and confused,while extracellular matrix increased.Masson staining showed collagen deposited in the myocardium.The level of collagen type Ⅰ in heart tissue increased [0.59±0.09 vs (0.40±0.05) tμg·g-1 tissue] (P＜0.01).CONCLUSION Prenatal nicotine exposure induces the increased level of cardiac collagen type Ⅰ,myocardial fibrosis and decrease of cardiac ejection function in adult offspring,which may lead to increased susceptibility to cardiovascular diseases.

Comparison of laparoscopic versus laparotomic operation for cervical carcinoma in elderly Chinese women: a meta-analysis / 中国内镜杂志

Objective To compare the curative effect of laparoscopic and laparotomic operation for elderly Chinese women with cervical cancer. Methods The randomized controlled trials (RCT) and case controlled trials (CCT) were collected by searches of WanFang database, CNKI, VIP, China Biology Medicine (CBM) , PubMed. Data were extracted from these trials and data analysis was performed by RevMan 5.2.9. Results There were no RCTs, however, a total of 10 CCTs met the inclusion criteria and had data extracted for this review. The baseline characteristics of the laparoscopic group were similar to those of the laparotomic group. Comparing to laparotomic group, the laparoscopic group have longer operation time (MD =32.60, 95%CI: 5.65~59.55, P = 0.020), less amount of bleeding (MD = -94.01, 95%CI: -130.65 ~ -57.37, P = 0.000), smaller number of lymph node dissection(MD = 1.69, 95%CI: 0.67 ~ 2.72, P = 0.001), earlier anus exhaustion (MD=-17.09, 95%CI: -21.19 ~ -12.98, P = 0.000) and shorter hospital stays (MD = -4.30, 95%CI: -5.57 ~ -3.02, P = 0.000). There was significant difference between the two groups. But there was no statistical significance in postoperative indwelling catheter time (MD = -0.67, 95%CI: -1.92 ~ 0.58, P = 0.290) and surgical complications incidence (OR=0.62, 95%CI: 0.27 ~ 1.42, P = 0.260) between the two groups. Conclusion Laparoscopic management has the advantages of less traumatic and recovered quickly, and did not increase the incidence of complications. Laparoscopic operation is an ideal procedure for elderly Chinese women with cervical carcinoma.

Clinical Observation of Recombinant Human Interferon α2b Vaginal Effervescent Capsules Combined with Radiofrequency Ablation in the Treatment of Cervical Erosion Combined with HPV Subclinical Infection / 中国药房

OBJECTIVE:To investigate the clinical efficacy and safety of Recombinant human interferon α2b(rhIFN α2b) vaginal effervescent capsules combined with radiofrequency ablation in the treatment of cervical erosion with human papilloma virus (HPV)subclinical infection(SPI). METHODS:A total of 207 cervical erosion patients with SPI were selected from gynecology outpatient department of our hospital during Jul. 2014-Aug. 2015 and then divided into group A,B,C according to random number table,with 69 cases in each group. Group A was given rhIFN α2b vaginal effervescent capsules 800 thousand IU,via posterior for-nix,qd,3 days after the end of menstruation,10 days as a treatment course,for 3 courses. Group B received radiofrequency abla-tion. Group C was given constant dose of rhIFN α2b vaginal effervescent capsules combined with radiofrequency ablation. The clini-cal efficacy of 3 groups,the rate of wound healing,the rate of associated symptoms disappearance 2 weeks after surgery and the in-cidence of complications in group B and C were evaluated. The occurrence of ADR was recorded. RESULTS:The response rates of group B,C were 94.20% and 98.55%,which were significantly higher than 62.32% of group A. The response rates of SPI in group C was 92.75%,which was significantly higher than 63.77% of group B,with statistical significance(P0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:rhIFN α2b vaginal effervescent capsules combined with radiofrequency ablation can effective-ly improve the efficacy of cervical erosion with SPI,shorten the wound healing time with good safety.

Protective effect and mechanism of β-CM7 on renin angiotensin system & diabetic cardiomyopathy / 生物工程学报

This article aimed at exploring the effects and protective mechanism of β-CM7 on renin angiotensin system (RAS) in diabetic rats myocardial tissue. We divided 32 male SD rats into 4 groups: control group, diabetic model control group, insulin (3.7x10(-8) mol/d) treatment group and β-CM7 (7.5x10(-8) mol/d) treatment group. After 30 days, all rats were decapitated and myocardical tissues were collected immediately. After injection, β-CM7 could decrease the content of Ang II, increase the content of Angl-7. And β-CM7 could improve the mRNA of AT1 receptor and Mas receptor. β-CM7 also could improve the mRNA of ACE and ACE2, enhance the activity of ACE and ACE2. These data confirmed tli β-CM7 could activate ACE2-Angl-7-Mas axis, negative passage in RAS, to inhibit the expression ACE mnRiJA and protein in rat myocardium, alleviate the myocardial tissue damage induced by Ang II. The effect of β-CM7 on inhibiting myocardium damage might be related to ACE/ACE2 passageway.