Objective: To investigate the detection ability of two reagents by automated coagulation analyzer ACL-TOP using immune turbidimetric method, and to determine the merits and demerits of them. Methods:Two reagents were compared in the study. We selected 532 cases of hospitalized patients in Anzhen Hospital, 388 cases of which were unstable angina, 60 cases were pulmonary thromboembolism, 70 cases were coronary atherosclerosis, 14 cases were abdominal aneurysm, and the rest were the patients with high blood pressure and coronary heart disease. The plasmas of all the patients were extracted, and D-dimer was detected on ACL-TOP by D-Dimer (referred to as reagent A) and D-DHS (referred to as reagent B). Results:The results of D-dimer increased in different degrees, and there are 88 cases of false positive cases. The case whose FDP and individual D-dimer of D-dimer simultaneous detection was elevating and clinical symptoms were disappeared was detected by the VIDAS instrument platform verification. There were significant differences between A and B. The detection result of reagent A was [1594.15±2286.18], and reagent B was [912.97±1814.06]. There were significant differences between them (t=3.654, P<0.05). In addition, the consistency of the two reagents was poor (r=0.419, P<0.05). Conclusion:Comparing two reagents to detect D-dimer quantitatively by automated coagulation analyzer ACL-TOP, D-DHS owns greater ability to exclude false-positive results, so does the ability of anti-interference with jaundice, hemolysis and chylemia.

Objective To observe the antioxidant effects of 99Tc-MDP on the brain of aged mice induced by D-galactose.Methods A total of 48 healthy female Kunming mice were divided into 6 groups by random number table method:normal control group,model group,vitamin E (Vit E) group,groups treated with low,middle and high dosages of 99Tc-MDP.Except the normal control group,mice of each group were injected with 10％ D-galactose saline subcutaneously in the neck for 42 d.At the same time,the 99Tc-MDP groups were given different dosages of 99Tc-MDP (1.75× 10-5,3.50× 10-5,0.70× 10-4 μg/g according to the body mass) respectively into abdominal cavity twice a day.Vit E group was given Vit E by intragastric administration from the first day.The model group was injected with saline every day.After behavioral testing,mice serum samples and brain tissue samples were collected for the determination of superoxide dismutase (SOD),malondialdehyde (MDA),glutathione peroxidase (GSH-Px) and monoamine oxidase (MAO)levels.Then the mice were sacrificed and the brain tissue was taken for HE staining.The independent-sample t test was used for data analysis.Results The mice model was established successfully.SOD levels in brain tissue of groups injected with low,middle,high dosages of 99Tc-MDP,Vit E group were (19.06± 6.44),(20.41±4.02),(22.24±3.76),(24.71±5.09) U/mgprot,respectively,all of which were higher than that of the model group((11.32±2.90) U/mgprot;t=3.099 6-6.504 6,P＜0.05 or ＜0.01).There were similar results for GSH-Px (t =2.214 1-4.145 7,P＜0.05 or ＜0.01).MDA and MAO levels in brain tissue of 99Tc-MDP groups were lower than those of the model group (t =2.140 3-3.057 8,all P＜0.05).Compared to normal control group,the hippocampus in model group showed reduced cell number and layers,disordered structure,with part of the cells in smaller volume and abnormal nuclear shape.In Vit E group and the three 99Tc-MDP groups,no significant change of neuron was observed compared with normal control group,the degeneration and necrosis of hippocampal cells were mild compared with model group,the cell number and morphology were normal,and the structures were clear.Conclusion 99Tc-MDP may increase the activities of SOD,GSH-Px and reduce the levels of MDA and MAO in brain tissue of aged mice,thus it may be helpful in delaying the brain aging.

Objective To investigate current status of learned resourcefulness in pregnant women,and to identify its influencing factors.Methods With convenient sampling,a self-made General Data Questionnaire and the Chinese version of Self-Control Schedule (C-SCS) was used to survey 360 pregnant women in the antenatal clinic in one three-class hospital in Guangzhou.Results The mean score of learned resourcefulness in pregnant women was (115.00±14.42) and its influencing factors included education degree,gravidity,pregnancy school training and planed pregnancy.Conclusions Learned resourcefulness in pregnant women loads upper level.Medical staff should take targeted interventions to strengthen it and facilitate the mental well-being of pregnant women.

A real-time tele-monitoring system for physiological multi-parameter based on Internet is introduced,and physiological signals are transmitted by P2P network technology.The experiment results show that the speed of data transfer has been improved greatly using P2P technology,and physiological signals,such as ECG,can be monitored in real-time.

Objective To investigate the association of T help (Th) lymphocyte and heart rate variability (HRV) in congestive heart failure (CHF) patients. Methods Ninety-six patients with CHF and thirty healthy persons were enrolled in the study. Time-domain HRV analysis was performed based on 24 hour Holter Electrocardiogram (ECG) monitoring. Interferon-γ (IFN-γ) was used as markers for the differentiation of Th1 subsets and interleukin-10 (IL-10) for the Th2 subsets. IFN-γand IL-10 in CD4 + T lymphocytes were quantified by 3-color flow cytometry. Results The frequency of IL-10-Producing T Cells in the CHF group was significantly lower than those in the healthy control ( ( 16.4 ± 5.8 ) % vs. ( 26.8 ± 3.7 ) %, t = 9. 243, P ＜ 0. 001 ). The frequency of IFN-γ in the CHF group ( ( 18.4 ± 7.3 )% ) was significantly lower than that in the healthy controls ( (7.3 ±4.6) % ,t =7. 917, P ＜ 0. 001 ). The following index of HRV in the CHF groups were all significantly lower than those in the healthy controls: (98. 6 ± 21.3) ms vs. ( 145. 1 ± 42. 6) ms for SDNN, (83. 9 ± 22.4) ms vs.(136.5 ±39.6)ms for SDANN, (40.6 ± 14.5) ms vs. (55.8 ± 17.9) ms for SDNNI, (20. 7 ± 12.9) ms vs.(29.1 ± 12.6) ms for RMSSD, (5.6 ± 3.7 ) % vs. ( 11.8 ± 4.4) % for PNN50 ( Ps ＜ 0.05 ). In CHF patients, the frequency of IL-10 were positively associated with SDNN, SDANN, SDNNI, RMSSD and PNN50 ( r = 0. 49,0. 57,0. 58,0.47 and 0. 52 ,respectively,Ps ＜ 0.01 ). In the CHF patients, the frequency of IFN-γand IFN-γ/IL-10 ratio were negatively associated with SDNN ,SDANN ,SDNNI, RMSSD and PNN50 ( r = - 0. 49, - 0. 54, - 0. 57, - 0.52,- 0.53, - 0. 52, - 0.64, - 0.57, - 0. 58, - 0. 67, Ps ＜ 0. 01 ). Conclusions Autonomic nervous system is involved in the regulation of the balance of Th1/Th2 in patients with CHF. Sympathetic nerve system enhances the effect of Th1 ,whereas parasympathetic nervous system enhances the effect of Th2.

Objectives To explore the relationship between illness perceptions and health behavior in the subjects. Methods Revised illness perception questionnaire and health promoting lifestyle profileⅡ (HPLPⅡ) were used to measure 101 patients′illness perception and health behavior between the groups. Results The HPLPⅡscore of LEAD was(2.17 ± 0.29) with the score of dimension. The course of disease, prognosis and perception of emotion were negatively related to health behaviour; personal control and primaty congtion of drsease were postively related to health behaviour (all P<0.01). Conclusion Medical personnel should pay attention to the relationship between illness perceptions and health behavior in patients with LEAD and effective measures should be taken to improve the patients′illness perceptions, promote their choices and persistence in health behavior and improve the quality of life.

Objective To investigate the association of ulcerative colitis (UC) with fork head/ winged helix transcription factor-3 (Foxp3) polymorphisms in Han population in Zhejiang province,China.Methods A total of 381 UC patients and 490 healthy controls were enrolled in this study.The four single nucleotide polymorphisms (SNPs) of Foxp3 (rs3761547,rs2232365,rs2294021,rs3761548) were examined by SNaPshot.The analyses of linkage disequilibrium (LD) and haplotype were also performed in all study subjects.Results When male and female UC patients were compared with their corresponding controls respectively,the alleles and genotypes of the four SNPs were not statistically different (all P ＞0.05).According to severity and location of the disease,the UC patients were divided into different subgroups.The alleles (C,G,A) of (rs2232365,rs2294021,rs3761548) were more frequent in male patients with severe UC than in the male controls (69.6％ vs 34.3％,P =0.001;69.6％ vs 34.3％,P =0.001;39.1％ vs 14.4％,P =0.002,respectively).As compared with the female controls,the alleles (C,G,A) and genotypes (TC + CC,AG + GG,CA + AA) of (rs2232365,rs2294021,rs3761548) were significantly increased in the female patients with severe UC (51.9％ vs 38.0％,63.5％ vs 39.2％,53.8％ vs21.4％,80.8％ vs57.7％,84.6％ vs58.4％,76.9％ vs34.7％,all P＜0.05).The four SNPs above were shown to be in a strong LD both in male and in female subjects.When male and female UC patients were compared with their corresponding controls respectively,nevertheless,each haplotype frequency was not statistically different (all P ＞ 0.05).Conclusions Foxp3 (rs2232365,rs2294021,rs3761548) variations might engender the increased risk of severe UC in Chinese Han patients.

Objective To analyze the association of Crohn's disease(CD)with vitamin D receptor(VDR) gene polymorphisms. Methods After collecting 326 CD patients and 464 healthy controls,the four single nucleotide polymorphisms of VDR (FokI, BsmI, ApaI and TaqI) were examined by a SNaPshot technique. Results Compared with those in controls,the frequencies of mutant allele(A)and genotype(GA+AA)of BsmI were significantly decreased in CD patients(both P=0.001). The similar conclusions were also drawn for the mutant allele(C)and genotype(TC+CC)of TaqI(both P<0.05). In further stratified analysis,compared with those in controls,the mutant alleles and genotypes of BsmI and TaqI were significantly reduced in stenotic type CD patients (all P<0.0083). The analyses of linkage disequilibrium(LD)and haplotype showed that BsmI,ApaI and TaqI were in a strong LD,and the formed haplotype AAC was significantly lower in CD patients than that in controls (P <0.05). Conclusions VDR(BsmI and TaqI)polymorphisms are significantly related with the reduced susceptibility to CD,especially for patients with stenotic CD. Moreover,the haplotype AAC might engender a reduced risk of CD.

Objective To explore the association of Crohn's disease (CD) with T cell immunoglobulin and mucin domain 3 (Tim-3) gene polymorphisms in patients of Zhejiang Han population in China.Methods A total of 308 CD patients and 573 age-and sex-matched healthy controls were enrolled in our study.Two single nucleotide polymorphisms (SNPs) of Tim-3 (rs1036199 and rs10515746) were examined by the improved multiple ligase detection reaction technique (iMLDR).Analyses of linkage disequilibrium and haplotype were also performed by Haploview 4.2 software in all study subjects.Results In general,the allele and genotype frequencies of Tim-3 (rs1036199 and rs10515746) were not statistically different between CD patients and the controls (all P ＞0.05).According to the Montreal Classification,CD patients were divided into different subgroups.The variant allele (C) and genotype (AC + CC) of rs1036199 were more frequent in CD patients with penetrating diseases than in the controls (10.4％ vs 1.7％,P =0.002;20.8％ vs 3.5％,P =0.023).Similar conclusions were also drawn for the variant allele (A) and genotype (CA + AA) of rs10515746 in patients with penetrating diseases when compared with the controls (10.4％ vs 2.2％,P =0.000;20.8％ vs 4.2％,P =0.033,respectively).The two SNPs of Tim-3 were in strong linkage disequilibrium (D'=1.0,r2 =0.928).The haplotype (AC) formed by their wild-type alleles (A) and (C) was decreased in patients with penetrating CD compared with the controls (89.6％ vs 98.3％,P =0.000).However,the haplotype (CA) formed by their variant alleles was more frequent in patients with penetrating CD than in the controls (10.4％ vs 1.6％,P =0.000).Conclusions Tim-3 (rs1036199 and rs10515746) variations might be correlated with the enhanced risk of penetrating diseases in CD patients.Furthermore,the haplotype (AC) and (CA) formed by the two SNPs might be a protective and a risky factor for penetrating CD respectively.

Objective To explore the association of genetic polymorphism of fucosyltransferase (FUT) 2 and FUT3 and expression of Lewis antigen with ulcerative colitis (UC) in Chinese Zhejiang Han population.Methods We genotyped FUT2 (rs281377, rs1047781 and rs601338) and FUT3 (rs28362459, rs3745635 and rs3894326) in 485 UC patients and 580 healthy controls using SNaPshot. By immunohistochemistry method, we also evaluated expression of Lewis a and b antigens in the sigmoid colon of 10 UC patients and 10 patients with benign colonic polyps.Results The frequencies of mutant allele (A) and genotype (GA+AA) in FUT3 rs3745635 were higher in UC patients than in controls (P=0.016, 95%CI 1.339-1.699;P=0.038, 95%CI 1.330-1.742, respectively). Stratified analyses revealed that the frequencies of mutant allele (G) and genotype (TG+GG) of FUT3 rs28362459 were significantly lower in patients with extensive colitis than in those with distal colitis (P=0.001, 95%CI 0.567-0.786;P<0.001, 95%CI 0.503-0.742, respectively). Similar conclusions were drawn for the mutant allele (A) and genotype (GA+AA) of FUT3 rs3745635 in patients with extensive colitis compared to those with distal colitis (P=0.011, 95%CI 0.621-0.900;P=0.006, 95%CI 0.553-0.845, respectively). Although expression of Lewis b antigen in the sigmoid colon did not differ between UC patients and controls, Lewis a antigen expression was higher in the crypt epithelium of both inflammatory and non-inflammatory sigmoid colon of UC patients than in controls (P=0.028).Conclusion Polymorphisms of FUT3 and expression level of Lewis a antigen might be associated with UC.