Objective To investigate the risk factors and the immune functions for noeocomial palmonary fungal infection (PFI) in COPD patients.Methods The data of 55 cases of nosocomial PFI were analyzed,and examined the level of T Lymphocyte Subsets (TLS) in peripheral blood from 67 cases COPD,then compared with 54 healthy donors.Results Nosocomial pulmonary fungal infection Candida Albicans was ranked the first pathogen.CD3 and CD4 of COPD with PFI were significantly ower than COPD and healthy donors(P＜0.05).Conclusions We should improve the immunity of patients in the process of therapy.We should reasonable use of bread spectrum antibiotics and corticosteroids in order to reduce incidence of pulmonary fungal infection.

ObjectiveTo investigate and compare the behavioral changes, neuron loss of hippocampus and mossy fiber sprouting between pilocarpine-induced status epilepticus (SE) model and pentylenetetrazole (PTZ) kindling model in rats.MethodsAfter two different epilepsy models were made, Vedio was adopted to observe the behavioral changes. Nissl staining and Neo-timms' staining were separately used to observe and compare the neuron loss of hippocampus and mossy fiber sprouting in the dentate gyrus (DG) at different time points during epileptogenisis.ResultsNo recurrent spontaneous seizure, no neuron loss and no mossy fiber sprouting were found in PTZ kindling model; whereas obvious neuron loss was found in CA1, CA3 of hippocampus and hilus of DG, and mossy fiber sprouting were found in pilocarpine model in parallel with recurrent spontaneous seizures. ConclusionPTZ kindling model resembles absence epilepsy in human, while pilocarpine-induced status epilepticus model resembles chronic temporal epilepsy in human. Neuron loss and mossy fiber sprouting may play an important role in epileptogenisis. Pilocarpine-induced epilepsy model can be regarded as an ideal chronic temporal epilepsy model.

Objective To study the mechanism of unscheduled Cyclin B1 expression at G_1 phase which is usually at G_2/M phase.Methods Human peripheral blood lymphocytes(PBL) from healthy volunteers were firstly activated by PHA and then went into cell cycle.The cells were collected at 0,36,48 and 60 h after activation and divided into two parts:one for Cyclins/DNA muhiparameter assay,and another for Post-sorting Western blot.Results After activation by PHA,Cyclin B1 and CDK1 of lymphocytes were expressed at G_1 phase.Conclusion Unscheduled Cyclin B1/CDKl probably contributes to lymphocytes in vivo into cell cycle.

Objective:To evaluate influence of electroacupuncture combined point massage on aptients with cartid ar- tery arteriosclerosiss.Methods:A total of 106 patients with carotid atherosclerosis were randomly divided into rou- tine group (n=54,received health education based on routine therapy)and electroacupuncture+ massage group (n=52,received additional electroacupuncture and point massage based on routine group).Both groups were treated for two courses,20 times/course, 1 time/d.Carotid intima-media thickness (IMT)and thickness of carotid plaques were measured and compared between two groups before and after treatment.Results:There were no sig- nificant difference in thickness of carotid plaques and IMT between two groups before treatment,P>0.05 all. Compared with before treatment,after treatment,there were significant reductions in thickness of carotid plaques [left:(0.104±0.103)mm vs.(0.044±0.031)mm,right:(0.111±0.093)mm vs.(0.055±0.046)mm]in elec- troacupuncture + massage group,and they were significantly thinner than those of routine group [left:(0.190± 0.175)mm,right:(0.223±0.183)mm],P<0.01 all;significant reductions in carotid IMT [left:(0.096±0.021) mm vs.(0.086±0.019)mm,right:(0.091±0.019)mm vs.(0.087±0.018)]in electroacupuncture + massage group,and they were significantly thinner than those of routine group [left:(0.105±0.016)mm,right:(0.103± 0.020)mm],P<0.05 or <0.01.Conclusion:Electroacupuncture combined point massage can effectively reduce thickness of carotid plaques and carotid intima-media thickness.

Objective To study the effects of Panax Notoginseng Saponins (PNS) on the damaged expression of ZO-1 of brain microvascular endothelial cells caused by Aβ42.MethodsBrain microvascular endothelial cells were divided into normal control group, model group, PNS low-, medium- and high concentration groups. They were incubated for 24h in 5% CO2 incubator at 37℃ . Then cell vitality was detected by MTT colorimetric method and ZO-1 protein expression was tested by Western blot.Results Stimulation of Aβ42 reduced the activity of microvascular endothelial cells (P<0.01) and suppressed the expression of ZO-1 protein (P<0.01). Compared with the model group, the activity of microvascular endothelial cells of PNS groups, especially the high and medium dose groups (P<0.05), and increased the ZO-1 protein expression. Conclusion PNS can partly recover the barrier function of blood brain barrier through inhibiting the decrease of the activity of microvascular endothelial cells caused by Aβ42.

Objective To investigate the changes of the N-acetylaspartate(NAA) concentrations in different brain regions and executive function skills in alcohol dependence,and to study the relationship between NAA levels and cognitive functions in subjects.Methods 49 male,non-smoking,alcohol-dependent patients and 45 healthy control subjects were measured with Proton 1H Magnetic resonance spectroscopy (MRS) and Wisconsin Card Sorting Test (WCST).Results Alcoholics had lower NAA/Cr ratios in prefrontal grey matter(GM) (1.59± 0.13) and white matter(WM) (1.58±0.12) regions and performed poorly on executive function tests compared to controls (P＜0.001).NAA/Cr in left prefrontal regions positively correlated with certain parameters of EF testing (number of correct responses 30.37± 3.73,perseverative errors 11.49± 3.39,random errors 6.18± 2.64,categories completed 2.08± 1.59)in alcoholic group (P＜0.01).NAA/Cr in prefrontal WM regions correlated with certain parameters of EF testing in alcoholic group (number of correct responses r=0.379,categories completed r=0.433,P＜ 0.05).Conclusion Long-term,chronic alcoholism will damage neuronal viability and cognitive functions,which suggests that NAA concentrations can reflect the extent of damage of cognitive functions with decreased levels reflecting neuronal loss.

Objective Fructus Amomi(Sharen) is derived from the dry ripe fruit of Amomum villosum Lour., A.villosum Lour. var. xanthioides T.L. Wu et Senjen and A.longiligulate T.L.Wu, which is widely utilized for its clinic effects on digestive system. However, Fructus Amomi from different species and habitats, possessing different quality, is difficult to identify. In this study, we aim to develop a simple, rapid and reliable method for authentication of Fructus Amomi. Methods Twenty-five batches of samples of Fructus Amomi were collected and electronic nose was introduced into analyzing their odor with multiple mathematical statistics methods. Na?ve bayes network (NBN), radical basis function (RBF) and random forest (RF) were applied to establish different classifiers while BestFirst+CfsSubsetEval (BC) was used to screen the attributes for searching sensor array with higher contributions. Results Firstly, after attribute-screening via BC, the established discriminative models via NBN, RBF and RF could successfully identify genuine and non-genuine samples, presenting correct judging ratios of 78% and 84% through ten-fold cross validation and external test set validation, respectively. Besides, quantity predictive models were constructed as well. In case of content of bornyl acetate, one of the effective components in Fructus Amomi, values were higher than 3.5 mg/g and lower than 1.8 mg/g with sensor response of 0.04 and 0.03, respectively. Conclusion In this paper, quality discriminative model and quantity predictive model of Fructus Amomi were established via electronic nose and multiple mathematical statistics methods. It indicates that electronic nose could be a promising method for quality evaluation of Chinese material medica.

ObjectiveTo study current status of benign breast diseases and metabolic syndrome in professional women in Chongqing and relative risk factors. MethodsProfessional women (2604 cases )in Chongqing were surveyed by random cluster sampling.The biochemical indicators such as blood lipid were determined by cholesterin oxidase.The indicators such as height and weight were measured by physical examination.Chi-square test and logistic regression were used in statistical analysis. Results The morbidity rate of benign breast diseases, metabolic syndrome, hyperglycaemia, hypertension, hyperlipidemia, and obesity in our study was 19.27％ (429/2226), 7.91％ ( 176/2226 ), 8.04％ ( 179/2226 ), 23.23％ ( 517/2226 ), 24.21％ ( 539/2226 ) and 20.5％ (457/2226) respectively.The difference of mobidity rate between different age group and different career had statistical significance.Office workers and civil servants were high risk population.Age was negatively correlated with benign breast diseases.There was no relation between benign breast diseases and metabolic syndrome.ConculsionsThe morbidity rate of benign breast diseases and metabolic symdrome in professional women in Chongqing is relatively high.A good lifestyle, breast self-examination and regular physicial examination are recommended.

In this study, CD133+ subpopulations were isolated from 41 primary colorectal cancer tissues, the proliferation and cell cycle distribution of the cells were examined without in vitro expansion, and then compared to those of cell lines. The detection of CD133 in colorectal cancer tissues, isolation of CD133+ and CD133- epithelial subpopulations, Ki-67/DNA multiparameter assay and cell volume analysis were flow cytometrically conducted. The results showed that Ki-67 expression was correlated with CD133 level in primary cancer tissues, while cell cycle G2/M phase distribution or clinicopathological characteristics was not. In addition, the CD133+ cells showed larger cell volume and higher Ki-67 expression as compared with CD133- cells. But there was no statistically significant difference in G(2)/M phase distribution between the two subpopulations. Our results demonstrated that the CD133+ subpopulation in colorectal cancer tissue contained more actively cycling and proliferating cells, which was not correlated to clinicopathological factors but might contribute to tumor progression and poor clinical outcome.

Objective:To evaluate the role of phosphoglycerate mutase 5 (phosphoglycerate mutase family member 5, PGAM5) in myocardial ischemia-reperfusion (I/R) injury in diabetic rats and the relationship with mitochondrial quality.Methods:SPF healthy male Sprague-Dawley rats, aged 6-8 weeks, weighing 200-220 g, were used in this study.Type 1 diabetes mellitus was induced by 1% streptozotocin diluted in citrate buffer solution 60 mg/kg.The rats were continuously fed for 8 weeks after successful establishment of the model.Seventy-two rats with type 1 diabetes mellitus were divided into 4 groups ( n=18 each) by a random number table method: diabetic sham operation group (DS group), diabetic myocardial I/R group (DIR group), diabetic myocardial I/R plus AAV9-PGAM5 shRNA group (DIR+ PGAM5 shRNA group), and diabetic myocardial I/R plus AAV9-GFP group (DIR+ GFP group). The myocardial I/R model was established by ligation of the left anterior descending coronary artery for 30 min followed by reperfusion for 2 h starting from 8 weeks after establishment of type 1 diabetes mellitus model.AAV9-PGAM5 shRNA and AAV9-GFP 2×10 12 μg/kg were slowly injected via tail vein 3 weeks before ischemia.In group AAV9-PGAM5 shRNA, left ventricular systolic pressure (LVSP) and the maximum rate of increase or decrease in left ventricular systolic pressure (±dp/dt max) were monitored and recorded at the end of reperfusion, and then blood samples from the the right carotid artery were collected for determination of serum troponin Ⅰ(cTnI), creatine kinase-MB (CK-MB) and lactate dehydrogenase (LDH) levels (by enzyme-linked immunosorbent assay). The animals were sacrificed and hearts were obtained for determination of myocardial infarct size (by Evans Blue plus TTC double staining method) and expression of PGAM5, autophagy-related proteins (LC3B, p62), dynamin-related protein 1 (Drp1), and mitochondrial autophagy receptor protein (FUNDC1) (by Western blot) and for microscopic examination of pathological changes of myocardial tissues (by HE staining). Results:Compared with group DS, the LVSP and ±dp/dt max were significantly decreased, the serum levels of cTnI, CK-MB and LDH were increased, myocardial infarct size was increased, the expression of PGAM5, LC3B, Drp1 and FUNDC1 was up-regulated, and the expression of p62 was down-regulated in group DIR and group DIR+ GFP ( P<0.05). Compared with group DIR, LVSP and ±dp/dt max were significantly increased, the serum levels of cTnI, CK-MB and LDH were decreased, myocardial infarct size was decreased, the expression of PGAM5, LC3B, Drp1 and FUNDC1 was down-regulated, and the expression of p62 was up-regulated in group DIR+ PGAM5 shRNA ( P<0.05), and no significant change was found in the parameters mentioned above in group DIR+ GFP ( P>0.05). Conclusion:PGAM5 is involved in the myocardial I/R injury in diabetic rats, which is related to the reduction of mitochondrial quality.