Objective:To discuss a simple method for flow cytometric analysis of cell DNA stained with DAPI and Hoechst33342.Methods:HT 29 cells stained with DAPI,Hoechst33342 or PI were measured by BD FACSAria and the percentages of cells in G0/G1,S and G2/M phases with three staining me-thods,then the results were analyzed and compared.Before measurement we monitored the quality of DNA analysis of flow cytometer through UV beads QC experiment and analyzed the standard chicken erythrocyte nuclei(CEN) and calf thymocyte nuclei(CTN) stained with DAPI and Hoechst33342.Results:CV value of UV peak was 2.4 after QC experiments.There were 4 peaks on CEN histograms and the ratios of peak channel mean of G2/G1,G3/G1,and G4/G1 were about 2,3,and 4 respectively.Both CV values of the first peak were 2.4.There were 2 peaks on CTN histograms and the ratio of peak channel mean of G2/G1 was 1.97,and CV value of G0/G1 2.4.The complete cell cycle of HT29 cells stained with DAPI,Hoechst33342 or PI was showed entirely,CV values were 3.40,3.02 and 4.42,respectively,and the percentages of cells in G0/G1 were 60.86%,60.22% and 60.81%,respectively,in S,28.85%,29.70% and 29.82%,respectively,and in G2/M,10.29%,9.09% and 9.37%,respectively.The results by the three methods showed no difference.Conclusion:This method for measurement of cellular DNA content is a simple and efficient approach to determining cell cycle and can be the first choice when using flow cytometer with 355 nm UV.

Objective To investigate the effects of low-dose ketamine combined with fentanyl or sulfentanyl in postoperative patient-controlled intravenous analgesia.Methods Two hundred cases with ASA Ⅰ~Ⅱ undergoing elective orthopedic operations were randomly allocated into four groups(50 cases for each group): 0.4?g/(kg?h) fentanyl(group F);0.2?g/(kg?h) fentanyl+120?g/(kg?h) ketamine(group FK);0.04?g/(kg?h) sulfentanyl(group S);and 0.02?g/(kg?h) sulfentanyl+120 ?g/(kg?h) ketamine(group SK).8mg of ondansetron was added to each recipe,and then diluted into 100ml with normal saline.The loading doses of all the patient-controlled-analgesics were 2ml administered 30min before the end of the operation.The background infusion doses were 2ml/h,while the pressing doses were 2ml,with intervals of 30min.Heart rate(HR),blood pressure(BP),respiration rate(RR),pulse O2 saturation and visual analogue scales(VAS),sedation score(SS) with adverse effects and the total times of pressing PCA pump button were observed and recorded in all patients respectively for 48h after operations.Results No statistically significant differences were found in HR,BP and RR among the four groups.VAS and the total pressing times in group F were higher than that in the other groups significantly(P

Objective Genecology is making great progress in the 21th Century. At the same acupuncture will play and inportant role in the postgenome thmes. So it is considered that acupuncture mechanism have certain experence to draw on modern genetic theories and techniques, especially in crucial functional gene control. And the opinion ablut establishing acupuncture and geneti expression pedigree database is brorght up.

The purpose of this paper is to provide parameters of physiological functions in elite athletes of track andfield, swimming, volleyball and gymnasts with reference to criteria for recruitment. Tests were made on 811males and 761 females for 14 physiological indices, including pulse rate, blood pressure and step test. Significant correlations were found between the performance level of track and field and swimming on theone hand and the athletes' vital capacity and Vo_2max on the other. Players of the national women volleyballteam were found to be more responsive in nervous reflexes and possess a lower percentage of body fat and agreater lean body weight than their counterparts on other teams. The gymnasts were found to be inferior incardiopulmonary function, which might be one of their pnysiological characteristics. In most items the subjects'parameters were mean?one SD. It is believed that for better performances an athelet must improve his cardio-pulmonary function.

Objective To investigate the related factors of phlebitis caused by PICC and support effective preventive nursing measures. Methods 163 patients diagnosed as malignant tumor who first used peripherally inserted central catheters (PICC) were recruited. Patients were observed for 3 months. According to the diagnostic criterion of infection, 34 patients with phlebitis were divided into the phlebitis group and others were divided into the control group. All patients were investigated for general information survey :sex, age, tumor type, allergic history,location of inserted vein, one-time success rate,activity after catheter, elbow bending,phlebitis occurred time, grade and type. Laboratory markers:WBC,neutrophils,immune parameters, fasting plasma glucose. Trait anxiety inventory (T-AI)was used for assessment of emotional state. Case-control study between groups was carried out. Results The results of univariate analysis showed that location of inserted vein,times of inserting vein,activity of inserted limb,elbow bending,blood sugar level and emotion were associated with phlebitis. Sex, age, tumor type, allergic history, immune function,WBC,neutrophils were not involved with phlebitis. The results of multivariate logistic regression analysis showed that PICC through basilica vein was the protective factor. Multiple insertions, more activity of inserted limb,durative anxious emotion were the risk factors of phlebitis. Conclusions Different location of vein,times of inserting vein,activity of inserted limb,elbow bending,high blood glucose level and persistent anxious emotion are the risk factors of phlebitis. Taking effective preventive measures before,during, and after PICC can reduce the incidence of phlebitis.

Objective To investigate the effects of autoantibodies (β1-AA) against second extra-cellular loop of the β1-adrenergic receptor (β1-AR-ECⅡ) in sera of patients with dilated cardiomyopathy (DCM) on proliferation of rat CD4+T lymphocytes.Methods β1-AA in the sera of patients with DCM was purified by affinity chromatography .CD4+T lymphocytes were isolated by immunomagnetic microbeads from peripheral blood mononuclear cells of rats and its positive rate was detected by flow cytometry .CCK-8 meth-od was used to detect the proliferation of CD 4+T lymphocytes and flow cytometry was performed to measure the ratio of CD4+/CD8+T lymphocyte .Results The purity of isolated rat CD 4+T lymphocytes by immu-nomagnetic microbeads reached 97.7%.The proliferation of CD4+T lymphocytes stimulated by CD3/CD28 was inhibited by β1-AA in a concentration-dependent manner .However , IgG antibodies extracted from sera of healthy controls did not suppress lymphocyte proliferation (P>0.05).The suppression effect of β1-AA was inhibited after binding to antigenic peptides corresponding to β1-AR-ECⅡ and was completely blocked by metoprolol, a specific antagonist of β1-adrenergic receptor (β1-AR).In addition,β1-AA had no effects on the ratio of CD4+/CD8+T lymphocyte .Conclusion β1-AA isolated from DCM patients suppresses the pro-liferation of CD4+T lymphocytes through β1-AR pathway , which indicates that β1-AA can directly reduce the number of T lymphocytes and impair the function of T lymphocytes , resulting in immune system disorders and the development of DCM .

Objective The person's Mesangial Proliferative Glomemlonephritis (MsPGN) were divided into 3 types based on clini- cal manifestations: nephroticsyndrome, hematuria and proteinuria. To investigate the expression of CD11a, CD11b, CD62L and its signifi- cance in the kidneys patients with MsPGN. Methods CD11a, CD11b and CD62L expression in blood of MsPGN patients (n=35) were investigated by flow eytometry method, and the changes of these proteins in kidney were surveyed. Results In MsPGN, CD11a and CD11b expression in blood were significandy lower and CD62L expression in blood were markedly higher than that in normal humans. And the renal glomeruli of MsPGN also expressed CD11a, CD11b and CD62L. Conclusion The expression of CD11a, CD11b and CD62L are abnormal in MsPGN, and apoptosis may play certain role in the pathogenesis of MsPGN.

Objective: To observe the changes of 5-hydroxytryptamine (5-HT) in colonic membrane of diarrhea-predominant irritable bowel syndrome (IBS-D) and the clinical efficacy of herbal cake-partitioned moxibustion in treating it, and to explore the action mechanisms. Methods: Seventy-three subjects were randomized into two groups: moxibustion group in which 37 cases were treated by herbal cake-partitioned moxibustion and needling group in which 36 cases were treated by needling. The clinical efficacy and 5-HT expression in colonic membrane were observed. Results: The cure rate was 43.2% in the moxibustion group and 36.1% in the needling group, with no significant difference between the two groups (P>0.05). Herbal cake-partitioned moxibustion could reduce 5-HT expression in colonic membrane. Conclusion: Herbal cake-partitioned moxibustion might improve the clinical symptoms of IBS-D by reducing 5-HT expression.

Objective: To explore the mechanism of herb-partitioned moxibustion for ulcerative colitis (UC) through observing the colonic mucosal histopathological changes and the expression of nuclear factor kappaB (NF-kB) and peroxisome proliferators-activated receptorγ (PPARγ) mRNA of UC rats. ＜br> Methods: Male SD rats were randomly divided into a normal group and a model group. UC model was established by general immunological plus local irritation method. After model identification, rats in the model group were randomly divided into a model group, a herb-partitioned moxibustion (HPM) group and a Western medicine (Salicylazosulfapyridine, SASP) group. Rats in the HPM group received treatment at bilateral Tianshu (ST 25) and Dachangshu (BL 25), two cones for each point, once a day for 7 d. SASP group rats were gavaged with SASP. The pathological scores were evaluated according to hematoxylin-eosin (HE) staining of colonic tissues. We used light microscopy to observe degree of colonic mucosal damage and the quantitative polymerase chain reaction (QPCR) to detect the expression of NF-κBp65 and PPARγ in colorectal mucosa. ＜br> Results: Compared with the normal group, histopathological scores were significantly higher in the model group (P＜0.05); compared with the model group, the scores were decreased significantly in the HPM group and the SASP group. Compared with the normal group, NF-κBp65 mRNA expression was increased with statistical significance in the model group (P＜0.05); compared with the model group, NF-κBp65 mRNA expressions were decreased significantly in the HPM group and the SASP group. Compared with the normal group, PPARγ mRNA expression was increased significantly in the model group (P＜0.05); compared with the model group, PPARγ mRNA expressions were decreased significantly in the HPM group and the SASP group. ＜br> Conclusion: HPM could improve the mucosa damage of UC rats, which is possibly through down-regulating NF-κBp65 to achieve anti-inflammatory effect. Whether decreasing the PPARγ mRNA is possibly involved in preventing precancerosis will need further study.

Objective To evaluate the risk factors for healthcare-associated infection(HAI)in senile dementia pa-tients,so as to adopt effective nursing measures to reduce the incidence of HAI.Methods Clinical data of 82 senile dementia patients aged≥60 years and hospitalized between January 2011 and June 2013 were analyzed retrospective-ly.Results Of 82 patients,28 (34.15%)developed HAI.The main infection site was lower respiratory tract(n=15,53.57%),followed by urinary tract(n=6,21 .43%).Univariate analysis revealed that risk factors for HAI in senile dementia patients were bedridden,long length of hospital stay ,dysphagia,indwelling urinary catheter,irra-tional use of antimicrobial agents,combined with tumor,and hypoproteinemia (all P <0.05 ).The main isolated bacteria were gram-negative bacilli(n=40,62.50%),the top three pathogens were Klebsiella pneumoniae (n=12, 18.75%),Escherichia coli (n =10,15.63%),and Pseudomonas aeruginosa (n =8,12.50%).Conclusion Reali-zing the risk factors and common pathogens of HAI in senile dementia patients is helpful for taking effective meas-ures to prevent and control the incidence of HAI .