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Objective: To investigate the effects of a recombinant endoglin-macrophage inflammatory protein 3α Fc-fusion protein (EM) vaccine on tumor angiogenesis and growth in mice with H22 hepatocellular carcinoma. Methods: An in vivo hepatoma mouse model was established. Seven days after subcutaneous inoculation of H22 tumor cells, mice were randomly divided into four groups: EM, endoglin Fc-fusion protein, macrophage inflammatory protein 3α Fc-fusion protein, and normal saline groups. Tumor volume and survival rate of mice were studied at 3-day intervals. Microvessel density of the tumors and tumor cell proliferation were detected by immunohistochemistry, and tumor cell apoptosis was detected by TdT-mediated biotinylated-dUTP nick-end label staining. The number of CD11c and CD86 positive dendritic cells were detected by flow cytometry. Results: Compared with the other groups, the tumor volume became smaller, and the survival time was longer in the EM-treated group. Besides, microvessel density and cell proliferation index were significantly lower, while the tumor cell apoptosis index was significantly higher in the EM-treated group. Besides the number of CD11c and CD86 positive dendritic cells in EM-treated mice was larger than that in other groups. Conclusions: EM Fc-fusion protein could effectively inhibit tumor growth through inhibiting endoglin-related tumor angiogenesis and cell proliferation, promoting tumor cell apoptosis, and could induce a certain degree of antitumor immune responses.
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Gastric cancer is one of the most common tumors. It 5-year survival rate is low, mainly because of a late diagnosis. Endoscopy with gastric biopsies is suggested as the best and most effective diagnostic method for screening of gastric cancer. Because endoscopic screening is an invasive procedure and its higher inspection costs, technical requirements and poor patient compliance, it is difficult for a large-scale screening and early diagnosis of gastric cancer. Serology could be used as a non-invasive screening method for the detection of gastric cancer due to its convenience, relatively low cost, safety, high sensitivity and specificity. In this paper, micro RNA, long noncoding RNA, DNA methylation, circulating tumor cells, pepsinogen, gastrin and other serum markers are reviewed in the early diagnosis of gastric cancer.
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Helicobacter pylori is one of causes of gastric cancer. It can cause mucosal inflammation cytokines aggregation,gastric mucosal damage;and through a variety of ways to activate epithelial cells multiple oncogenic pathways,including phosphatidylinositol 3 kinase( PI3K)pathway,Wnt-β-catenin and epoxidized synthase-2(COX-2)-prostaglandin E2 antibody(PGE2)pathway,so as to change the gastric stem cell micro-environment and disrupt the gastric stem cell differentiation and proliferation,making the normal gastric stem cells evolved into cancer stem cells.
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A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of butoconazole in human plasma. Human plasma samples of 0.2 μL were pretreated by a single step protein precipitation procedure and analyzed using a high performance liquid chromatography (HPLC) electrospray tandem mass spectrometer system. The compounds were eluted isocratically on an Inertsil ODS-SP column (100 mm×2.1 mm, 3 μm), ionized using a positive ion atmospheric pressure electrospray ionization source and analyzed using multiple reaction monitoring (MRM) mode. The ion transitions monitored were m/z 412.8→165.1 for butoconazole and m/z 453.4→230.3 for the internal standard. The chromatographic run time was 3.5 min per injection, with retention time of 2.47 min and 2.15 min for butoconazole and repaglinide, respectively. The method was validated to be linear over the range of 20 to 8000 pg/mL (r>0.999) by using a weighted (1/x(2)) quadratic regression. The mean recovery rate was more than 86.7%, and the intra- and inter-day precision of the quality control samples (QCs) was less than 8.3% and the accuracy ranged from 96.0% to 110.2%, which indicated that the quantitative method was reliable and accurate. The method is simple, rapid, and has been applied successfully to a pharmacokinetics study of butoconazole nitrate suppositories in healthy Chinese females.
Subject(s)
Adult , Female , Humans , Middle Aged , Young Adult , Administration, Intravaginal , Antifungal Agents , Blood , Chemistry , Pharmacokinetics , Calibration , Chromatography, Liquid , Methods , Imidazoles , Blood , Pharmacokinetics , Molecular Structure , Reproducibility of Results , Tandem Mass Spectrometry , Methods , Time FactorsABSTRACT
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of butoconazole in human plasma. Human plasma samples of 0.2 μL were pretreated by a single step protein precipitation procedure and analyzed using a high performance liquid chromatography (HPLC) electrospray tandem mass spectrometer system. The compounds were eluted isocratically on an Inertsil ODS-SP column (100 mm×2.1 mm, 3 μm), ionized using a positive ion atmospheric pressure electrospray ionization source and analyzed using multiple reaction monitoring (MRM) mode. The ion transitions monitored were m/z 412.8→165.1 for butoconazole and m/z 453.4→230.3 for the internal standard. The chromatographic run time was 3.5 min per injection, with retention time of 2.47 min and 2.15 min for butoconazole and repaglinide, respectively. The method was validated to be linear over the range of 20 to 8000 pg/mL (r>0.999) by using a weighted (1/x(2)) quadratic regression. The mean recovery rate was more than 86.7%, and the intra- and inter-day precision of the quality control samples (QCs) was less than 8.3% and the accuracy ranged from 96.0% to 110.2%, which indicated that the quantitative method was reliable and accurate. The method is simple, rapid, and has been applied successfully to a pharmacokinetics study of butoconazole nitrate suppositories in healthy Chinese females.
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Objective To investigate the correlations of the levels of serum total cholesterol (TC),high density lipoprotein(HDL),and low density lipoprotein (LDL) with tumor node metastasis (TNM) staging and Lauren's classification in gastric cancer.Methods The blood lipid levels of 157 cases of gastric cancers,80 cases of benign gastric diseases,and 80 cases of normal subjects were detected by the Hitachi 7170A automatic biochemical instrument,and these values were statistically compared with SPSS 19.0.Results The contents of serum TC,HDL,and LDL in the group of gastric cancers were lower than those in the groups of normal subjects and benign gastric diseases (P ＜ 0.05).The contents of serum HDL levels were decreased with the increase of the TNM stage in patients with gastric cancer,and were all lower than the benign gastric diseases and the health control group (P ＜ 0.05).No statistically significant correlation was found in the levels of serum TC,HDL,and LDL in Lauren's histological types of gastric cancers (P ＜0.05).Conclusions Abnormal lipid metabolism had already appeared in gastric cancer,and the decreased serum HDL levels was correlated with TNM stage of gastric cancer.Detection of the changes of lipid levels in patients might be beneficial to the screening and prognosis of gastric cancer.
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Objective To analyze the effects of health risk factors on presenteeism in enterprise employees.Methods A hospital in Jinan of Shandong province and a publishing enterprise in Beijing were selected as target settings of this cross-sectional study. Questionnaire survey was carried out to collect information on demographic data,health condition and presenteeism,and multiple logistic regression was used to analyze the influence of health risk factors on labor-related presenteeism.Results Insufficient physical activity was found in 42％ percent of the participants,and those with heavy-loaded pressure,overweight or obesity,high blood pressure and unhealthy diet habit accounted for 46％,41％,40％ and 34％,respectively. Proportions of employees with presenteeism varied with age ( x2 =10.1665,P =0.0377),occupation ( x2 =35.3579,P ＜ 0.05 ) and education level ( x2 =50.5377,P ＜ 0.05 ).Female employees ( P =0.0323,OR =1.728,95％ CI 1.047 to 2.850),graduates ( P ＜ 0.05,OR =6.159,95％ CI 2.510 to 15.109),overweight or obesity individuals ( P =0.0076,OR =1.673,95％ CI 1.147 to 2.44) and adults with poor self-perception of health ( P =0.0049,OR =2.284,95％ CI 1.285 to 4.060)seemed to be more likely to be presenteeism.Conclusions Overweight or obesity and poor self-perception of health may be associated with labor-related presenteeism.
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<p><b>OBJECTIVE</b>To examine the relationship between overweight or obesity and the risk of the various hypertension hemodynamic subtypes in Yi farmers and migrants.</p><p><b>METHODS</b>A cross-sectional study of 2 358 Yi farmers and 1 392 Yi migrants was carried out in the Liangshan Yi autonomous prefecture, Sichuan, China in 2007.</p><p><b>RESULTS</b>The standardized prevalence of overweight in female Yi farmers (6.22%) was higher than in males (3.15%), whereas in Yi migrants 31.56% of males and 18.78% of females were overweight. The standardized prevalence of obesity was 0 and 0.61% in male and female Yi farmers, compared to 3.91% and 5.57% in male and female Yi migrants, respectively. For both genders the standardized prevalence of ISH, IDH, and SDH was higher in Yi migrants than Yi farmers. Overweight and obese Yi men and women had a higher risk for IDH and SDH (P<0.001) than non-overweight/obese individuals. However, an association of overweight or obesity with ISH was observed only in men.</p><p><b>CONCLUSION</b>Yi migrants have substantially higher proportion of overweight and obese individuals, as well as individuals affected by ISH, IDH, and SDH, than do Yi farmers. Overweight and obesity are significant risk factors for the development of hypertension in Yi people.</p>
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Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Body Mass Index , China , Epidemiology , Diastole , Hemodynamics , Hypertension , Ethnology , Obesity , Ethnology , Overweight , Ethnology , SystoleABSTRACT
<p><b>OBJECTIVES</b>The purposes were to determine the relationship between silicosis among foundry workers and their cumulative exposure to silica dust, and to establish a regression model to predict the risk for developing silicosis by a given length of employment and air concentrations of silica at worksites.</p><p><b>METHODS</b>A 29-year cohort study was conducted, including all those employed for more than one year during January 1, 1980 to December 31, 1996 and all members of the cohort were followed-up to December 31, 2008. In total, 2009 workers of an automobile foundry in Shiyan, Hubei province were recruited in the study, 1300 at eight worksites including sand preparation, cast shakeout, and finishing, melting, moulding, core-making, overhead crane operation and pouring as exposed group, and the other 709 auxiliary workers at the same factory, such as electricians, inspectors, fitters, and so on, as control group. Person-years of observation were calculated by persons observed and years followed-up for each of them. Person-year incidence of silicosis and its relative risk (RR) or odds ratio (OR) and 95% confidence intervals (CI) among the workers were estimated, adjusted for relevant factors with logistic regression model using SPSS version 15.0 software.</p><p><b>RESULTS</b>Totally, 2009 workers were followed-up for 37 151 person-years and 48 cases of silicosis were found, with an overall incidence of 1.34 per thousand, 2.02 per thousand in exposed group, and 0.15 per thousand in control one. Risk of silicosis was significantly higher in the exposed group than that in the control one (RR = 13.13, 95% CI 3.18-54.13), higher in men than that in women (RR = 13.92, 95% CI 1.92-100.93). Risks of silicosis varied by job, highest in those exposed to cast shakeout and finishing (RR = 28.14, 95% CI 6.43-123.11), followed by those exposed to pouring (RR = 22.23, 95% CI 5.01-98.55) in the foundry. Average length of employment at onset of silicosis was 25.94 years, and silicosis incidence increased with length of employment. Average age at onset of silicosis was 47.83 years old. The risk of silicosis in workers with pulmonary tuberculosis was 2.57 folds as those without it (P < 0.01). Ten deaths were recorded in those with silicosis, with a case-fatality rate of 20.83 percent three of them died of lung cancer, three of liver cancer, two of ischemic heart disease, and two of other diseases as their immediate causes of death. Incidence of silicosis in foundry workers positively correlated with their cumulative silica exposure (OR = 3.00, 95% CI 2.34-3.83). Risks of silicosis increased by 4.38 folds with an increase of 1 mg/m3-year of cumulative silica exposure, and by 3.79 folds with smoking, respectively, adjusted for alcohol drinking and age. Based on a logistic regression model fitted, incidence of silicosis is expected to be 44.6 per thousand for those with daily exposure to silica of 4.18 mg/m3 in average for 30 years, and if incidence of silicosis is expected to be less than 1 per thousand, daily exposure to silica should be controlled below 0.2 mg/m3 for those with 20 years of employment, or below 0.1 mg/m3 for those with 30 or 40 years of silica exposure.</p><p><b>CONCLUSIONS</b>At present, foundry workers in China still face high risk of developing silicosis. For lowering occurrence of silicosis in exposed workers, it seems necessary that current occupational exposure limits for silica at worksites in China should be reexamined and silica dust control measures be strengthened.</p>
Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Air , Air Pollutants, Occupational , Automobiles , Incidence , Logistic Models , Longitudinal Studies , Occupational Exposure , Silicon Dioxide , Silicosis , MortalityABSTRACT
Objective To understand the prevalence of urinary incontinence(UI)and its severity in rural elderly people,as well as to investigate the awareness on UI in the elderly and health-care service seeking behavior.Methods A cross-sectional study was carried out in two townships of Jixian county,Tianjin.A total of 743 people aged 60 years and over were selected under cluster sampling method.All the information was collected with a standardized structured questionnaire by face-to-face interview.Prevalence,severity,the awareness on UI in the elderly and their utilization of health-care service for its diagnosis and treatment were analyzed.Results Prevalence of UI was 33.38% among people aged 60 years and over in two townships of Jixian,higher in females than in males(43.15% vs.22.75%,χ~2=34.70,P＜0.0001).The prevalence rates of UI in 60-age group,65-age group,70-age group,75-age group,80-age group,85-95 age group were 28.64%,32.12%,34.08%,35.45%,47.76%,30.00%,respectively,and increased with age (for trend χ~2=219,P=0.029).Stress urinary incontinence(SUI)and urge urinary incontinence(UUI)were mild,while mixed urinary incontinence(MUI)were mainly moderate.The differences of severity of SUI,UUI,MUI between men and women did not show statistical significance(all P＞0.05).In 743 elderly people,more than half of the respondents had never heard of UI(50.20%,373/743)and only 170(22.88%)elderly people considered UI as a disease.630(84.79%)and 665(89.50%)elderly people in our research group did not know that such condition was curable and preventable.In 248 elderly people with UI,only 12(4.84%)of them ever seeking community health-care services in the health-care centers or hospitals.For the ones who did visit the centers,the purpose was only to seek for drug treatment.Conclusion Prevalence of UI appeared to be high among the elderly people in rural areas of Jixian county.Most of the elderly people were lack of knowledge about UI that hindered them from seeking for diagnosis and treatment in the clinics,plus the treatment program for UI was not standardized.Knowledge on UI and health care seeking behavior should be popularized and strengthened among elderly people living in the rural areas.
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<p><b>OBJECTIVE</b>To present a classification of the deviated nose with unilateral cleft lip and the associated surgical correction.</p><p><b>METHODS</b>A total of 176 cases of nasal deformities with unilateral cleft lip treated in Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine & Shanghai Research Institute of Stomatology & Shanghai Key Laboratory of Stomatology from 2007 to 2009 were analyzed. Depending on the relationship between the external pyramid and the facial midline, the nasal deviations with cleft lip were classified into 3 types: I, deviated bony pyramid, II, deviated cartilaginous pyramid; III, deviated lobular. The surgical treatment included surgical correction of deviated bony pyramid, deviated cartilaginous pyramid, deviated lobular and deviated septa.</p><p><b>RESULTS</b>Among the 176 patients, there were 97 males and 79 females, aging from 16 to 42 years with a mean of 20. There were 93 patients without deviated and 83 patients with deviated. Among the 83 deviated patients, deviated bony pyramid was found in 8 (10%), deviated cartilaginous pyramid in 29 (35%), deviated lobular in 46 (55%). Most patients who underwent surgical correction were satisfied.</p><p><b>CONCLUSIONS</b>There were nearly half of the unilateral cleft lip nasal deformity presenting with deviated noses. There was least deviated bony pyramid and most deviated lobular in the unilateral cleft lip deviated nose. The proposed classification for the deviated nose with unilateral cleft lip could serve as a practical guide for surgical planning.</p>
Subject(s)
Adolescent , Adult , Female , Humans , Male , Young Adult , Academies and Institutes , Cartilage , China , Cleft Lip , General Surgery , Nasal Septum , Congenital Abnormalities , General Surgery , Nose , Congenital Abnormalities , General Surgery , Oral Medicine , Rhinoplasty , Surgery, OralABSTRACT
Objective To understand the situation of client-retention to methadone maintenance treatment(MMT)program and related factors.Methods A Cohon study was adopted.In toml,1003 heroin addicts who were treated at 8 local MMT clinics with less than one month period.were recruited under nominal informed consent from Guizhou province.southwest part of China.during June to October 2006.Face-to-face interview and questionnaire administered to collect relevant information from the clients who were also followed nntil June 2007 to understand the situation on retention.Data were analyzed with Kaplan-Meier method to estimate the retention rate at different time spans while factors related to retention were analyzed with Cox proportional hazard regression model.Results All the clients were followed-up for 14 months,with an average retention of ten months.The retention rates of the clients were 68.8%and 57.4%at 6th-month and 12th-month of the treatment program.estimated by Kaplan-Meier method.Results of Cox regression analysis showed that factors influencing retention rate on MMT among the clients,including their awareness on MMT,dailv dose of methadone intake,and difierent MMT clinics which they were attached to.Risk influencing the withdrawal from MMT had a 20%decrease along with the increase when the daily dose of methadone intake reached 25 mg,with a hazard ratio of 0.80(P＜0.01).If the clients were aware that methadone was a life-time treatment when they began the MMT program.the risk for withdrawal would be lower than those who were not and the hazard ratio became 0.66(P＜0.05).Conclusion Our data showed that about half of the clients who were at the MMT program would still stick to it after 12-months.suggesting that the retention rate was not satisfactory and need to be improved.Factors as the MMT clinics themselves that the clients visited,(Laily methadone dosage they took,and the awareness on MMT etc.were important predictors to the rate of retention on MMT program.
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Objective To explore the aaitudes and willingness towards vaginal microbicides use among female sex workers(FSWs)for HIV/AIDS and sexually transmitted infection(STI)prevention jn an urban district of Beiiing,China,as well as its related factors.Methods A cross-sectional study using convenience sampling Was conducted.A total of 54 FSWs were recruited from Shijingshan District in urban Beijing.Main outcome vailables were measured by microbicide acceptability score with questionnaire,including high-risk sexual behaviors,self-reported condom use,self-reported HIV/STI history and perception on the risk of HIV/STI.Results Mean score of microbicide acceptability in FSWs was 2.73(ranging 1 to 4).Acceptability score varied by the type of their sex panner(P=0.049),experience of HIV testing(P=0.037)and concems about contracting STI(P=0.042).Willingness to use and covert use of microbicides in FSWS varied significantly with their sex partners(P=0.001).Conclusion FSWs in Shijingshan district might have a positive response to vaginal microbicides use across all hypothetical characteristics in general.Further study iS needed for comprehensive understanding of contextual factors related to it.
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<p><b>OBJECTIVE</b>To understand the prevalence, consequences and risk factors of falls among urban community-dwelling elderly in Beijing.</p><p><b>METHODS</b>A cross-sectional study was conducted in Longtan Community, Beijing. A total of 1512 individuals aged 60 years or over were selected by stratified cluster sampling. Data regarding the frequency of falls in the previous year, as well as circumstances, consequence and related factors of falls were collected from the elderly through face-to-face interviews with questionnaires in their home.</p><p><b>RESULTS</b>The prevalence of falls was 18.0% on the average among 1512 participants, higher in women (20.1%) than in men (14.9%) (P = 0.006), and increased with age (chi2(for trend) = 10.37, P = 0.001). The total rate of falls-induced injuries among the fallers was 37.7%. Falls usually resulted in soft-tissues bruises (58.7%), fear of repeated episodes of falls (58.8%), loss of independence and confidence in movement (35.7%) and even in hip fracture. In addition to the burden of medical care, falls also generated a big economic burden. Occurrence of falls was significantly associated with both intrinsic and extrinsic factors. The related factors of falls in the elderly included age > or = 60-70 years, femininity, less physical activities, fear of future falls, living alone, severely impaired vision, health problem-impacted activities of daily living, chronic diseases (diabetes, hypertension, postural hypotension, stroke sequela, cataract, arthritis, dementia and depression), medications (psychoactive, anti-diabetic), gait imbalance, high bed and faintly-lighted stairway.</p><p><b>CONCLUSION</b>The prevalence of falls among urban community-dwelling elderly in Beijing is closely associated with significant associated with intrinsic and extrinsic factors. Efforts to prevent falls in the elderly should be made at community level.</p>
Subject(s)
Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Accidental Falls , China , Prevalence , Risk FactorsABSTRACT
Objective To explore the risk factors on chronic diseases related to falls in the urban-community elderly and to provide evidence for developing a three-tier program for prevention. Methods A cross-sectional study was conducted in one community of Beijing. People aged 60 years and over were selected, using a stratified cluster sampling method, and data on falls within the past 12 months and falls-related chronic diseases were collected through face-to-face interview. Results The incidence of falls was 18.0% within one year among the 1512 interviewees. Seven factors showed statistical significances through univariate analysis including diabetes mellitus (OR =1.62), postural hypotension (OR=1.84), hypertension (OR=1.48), cerebral infarction (OR=1.98), cataract (OR=1.56), osteoarthritis (OR=1.50), dementia (OR=5.34) and depression (OR=4.61). Data from multivariate logistic regression analysis showed that the risk factors for falls would include dementia (OR=4.82), depression (OR=4.27), postural hypotension (OR=1.92) and suffering from several kinds of chronic diseases etc. Conclusion The incidence of falls in an urban elderly community of Beijing was considered to be high. The risk of falls was higher among persons suffering from dementia and depression and having more than two kinds of chronic disease. The chances of falls would parallel the increase of several kinds of chronic diseases among the elderly, suggesting that measures should be actively taken to prevent from falls.
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<p><b>BACKGROUND</b>Neural stem cells (NSCs) transplantation and gene therapy have been widely investigated for treating the cerebullar and myelonic injuries, however, studies on the ophthalmology are rare. The aim of this study was to investigate the migration and differentiation of brain-derived neurotrophic factor (BDNF) gene transgenic NSCs transplanted into the normal rat retinas.</p><p><b>METHODS</b>NSCs were cultured and purified in vitro and infected with recombinant retrovirus pLXSN-BDNF and pLXSN respectively, to obtain the BDNF overexpressed NSCs (BDNF-NSCs) and control cells (p-NSCs). The expression of BDNF genes in two transgenic NSCs and untreated NSCs were measured by fluorescent quantitative polymerase chain reaction (FQ-PCR) and enzyme-linked immunosorbent assay (ELISA). BDNF-NSCs and NSCs were infected with adeno-associated viruses-enhanced green fluorescent protein (AAV-EGFP) to track them in vivo and served as donor cells for transplantation into the subretinal space of normal rat retinas, phosphated buffer solution (PBS) served as pseudo transplantation for a negative control. Survival, migration, and differentiation of donor cells in host retinas were observed and analyzed with Heidelberg retina angiograph (HRA) and immunohistochemistry, respectively.</p><p><b>RESULTS</b>NSCs were purified successfully by limiting dilution assay. The expression of BDNF gene in BDNF-NSCs was the highest among three groups both at mRNA level tested by FQ-PCR (P < 0.05) and at protein level measured by ELISA (P < 0.05), which showed that BDNF was overexpressed in BDNF-NSCs. The results of HRA demonstrated that graft cells could survive well and migrate into the host retinas, while the immunohistochemical analysis revealed that transplanted BDNF-NSCs differentiated into neuron more efficiently compared with the control NSCs 2 months after transplantation.</p><p><b>CONCLUSIONS</b>The seed cells of NSCs highly secreting BDNF were established. BDNF can promote NSCs to migrate and differentiate into neural cells in the normal host retinas.</p>
Subject(s)
Animals , Rats , Brain-Derived Neurotrophic Factor , Genetics , Metabolism , Cell Differentiation , Physiology , Cell Movement , Physiology , Cells, Cultured , Embryo, Mammalian , Cell Biology , Enzyme-Linked Immunosorbent Assay , Immunohistochemistry , Neurons , Cell Biology , Retina , Cell Biology , Metabolism , Stem Cell TransplantationABSTRACT
Objective To understand the prevalence of urinary incontinence(UI) and its related factors so as to develop a three-tier program for prevention of the disease.Methods A cross-sectional study was carried out in two townships of Jixian county,Tianjin,during July to November 2007.A total of 743 people aged 60 years and over were selected under cluster sampling,and all information were collected with a standardized structured questionnaire by face-to-face interview.All the data were analyzed with multivariate logistic regression method to explore the related factors for UI in the elderly.Results The overall prevalence of UI was 33.38 percent among people aged 60 years and over in two townships.Risk factors flor UI in men would include older age (OR=1.39).occupation(OR=5.00),awareness of UI(OR=1.91),having in chronic respiratory diseases(OR=2.23),prostate(OR=11.47),neurological(OR=11.76),or motor systems (OR=2.48).while protective factors would include high educational level(taking primary school or below as control group),OR for the junior middle school group appeared to be 0.35,for senior middle school group it was 0.77.and ofundergraduate group it was 0.53.Risk factors for UI in women would include older age(OR=1.31),constipation(OR=1.46),awareness of UI(OR=1.94),increased bodv nlass index(when normal weight group served as control group,OR in the overweight group was 1.03 and in the obesity group OR was 1.54),suffering from chronic respiratory diseases(OR=4.84).diabetes mellitus(OR=2.36),or motor system diseases(OR=1.37),more gravidity(OR=1.03),more parity(OR=1.02),suffering from perinea laceration(OR=1.72) and wound infection during delivery(OR=1.65),while protective factors would include physical exercises(OR=0.64).Conclusion Prevalence of UI was higher among the elderly people in rural areas of Jixian county,Tianjin.UI in the elderly might have been influenced by various factors which suggesting the intervention strategy should be targeted at those related factors as well as focusing on primary prevention.
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<p><b>OBJECTIVE</b>To express the fusion protein of glutathione S-transferase (GST) and human Id-2 in E. coli and prepare the polyclonal antibodies against Id-2.</p><p><b>METHODS</b>The coding sequence of Id-2 gene was amplified by RT-PCR from the total RNA of breast cancer tissue. The recombinant plasmid was identified by PCR, restriction endonuclease digestion analysis and sequencing. The fusion protein GST-Id-2 expressed in E. coli following IPTG induction was purified by glutathione-agarose affinity chromatography and used to immunize rabbits to prepare the polyclonal antibodies against GST-Id-2.</p><p><b>RESULTS</b>PCR, restriction endonuclease digestion and sequence analyses showed that the Id-2 gene had been correctly inserted into pGEX-6P-1 vector, and the GST-Id-2 fusion protein expressed had a relative molecular mass of approximately 40,000 as shown by SDS-PAGE. The polyclonal antibodies obtained from the rabbit sera were found to specifically react with purified Id-2 by Western blotting, ELISA and agar gel immunodiffusion (AGP).</p><p><b>CONCLUSION</b>The prepared polyclonal antibodies against Id-2 allow effective Id-2 detection and facilitate further investigation of the structure and antigen epitope of Id-2.</p>
Subject(s)
Animals , Female , Humans , Rabbits , Antibodies, Monoclonal , Allergy and Immunology , Breast Neoplasms , Genetics , Escherichia coli , Genetics , Metabolism , Immune Sera , Inhibitor of Differentiation Protein 2 , Genetics , Allergy and Immunology , Recombinant Proteins , GeneticsABSTRACT
<p><b>OBJECTIVE</b>To evaluate the reliability and validity of the Chinese version of addiction severity index (ASI)-5th version (ASI-C-5), in illegal drug users receiving methadone maintenance treatment (MMT) in China.</p><p><b>METHODS</b>One hundred and eighty-six heroin addicts (144 men and 42 women) receiving MMT at three clinics in Guizhou province, southwest China, were recruited. They were all interviewed with a questionnaire of ASI-C-5 and 35 were re-interviewed at an interval of seven days to assess its test-retest reliability.</p><p><b>RESULTS</b>Cronbach's alpha for internal consistency of CSs varied from 0.60 to 0.81 in all domains. Test-retest reliability of composite scores (CSs) of ASI-C-5 were satisfactory (r=0.38-0.97). Based on item analysis and expert's suggestions, five items were deleted and one item was modified in ASI-C-5. Criterion validity of ASI-C-5 was found acceptable, as compared to addicts' self-rating anxiety scale (SAS) and self-rating depression scale (SDS) (r=0.59 and 0.45) except for social support rating scale (SSRS).</p><p><b>CONCLUSIONS</b>ASI-C-5 can be used for heroin addicts receiving MMT with acceptable reliability and validity.</p>
Subject(s)
Adult , Female , Humans , Male , China , Heroin Dependence , Drug Therapy , Methadone , Therapeutic Uses , Reproducibility of Results , Severity of Illness Index , Surveys and QuestionnairesABSTRACT
<p><b>OBJECTIVE</b>To explore the epidemic characteristics of vaginal douching, human immunodeficiency virus (HIV) and other sexually transmitted diseases(STD) among female sex workers (FSWs) in Yunnan province.</p><p><b>METHODS</b>FSWs were recruited to be investigated on their demographic data, drug abuse and sexual behavior, HIV/AIDS knowledge and procreation health status. Venous blood were collected to test for HIV, herpes simplex virus 2 (HSV-2) and syphilis while urine specimen was for morphine, cervical secretion for Gonorrhoea and Chlamydia trachomatis, and vaginal secretion for Trichomonas.</p><p><b>RESULTS</b>A total number of 833 blood specimen were collected, in which 84 specimen were confirmed to be HIV positive with a prevalence rate of 10.1%. The prevalence rates of syphilis and HSV-2 were 8.2% and 68.4% respectively. 832 vaginal and cervical secretion specimen were collected with the prevalence rates of Gonorrhoea, Chlamydia trachomatis and Trichomonas were 11.5%, 28.2% and 11.9% respectively. In multivariate logistic analysis, the factors associated with vaginal douching were: being Han nationality, locations of sex work at middle/high level, ever heard of HIV/AIDS, emerged hypogastric pain last year, the number of sex work location > or =4.</p><p><b>CONCLUSION</b>Vaginal douching was shown a risk factor for HIV and some STD.</p>