Fifty six elderly patients with acute coronary syndrome (ACS) were divided into nonsmoking group (n =30) and smoking group (n =26).All patients received aspirin 100 mg/d + Clopidogrel 75 mg/d for 14 d.The expression of glycoprotein Ⅱ b/Ⅲa and P-Selectin on the surface of platelets in both groups were assessed with flow cytometry (FCM).The positive expression rates of GP Ⅱ b/Ⅲ a and P-Selectin before treatment were (67.86 ± 12.14)％,(70.37 ± 10.15)％ in non-smoking group and (79.47 ± 11.62) ％,(81.26 ± 9.74) ％ in smoking group.The positive expression rates of GP Ⅱ b/Ⅲ a and P-Selectin after treatment were significantly decreased to (50.18 ± 8.72) ％,(49.36 ± 11.43) ％ in nonsmoking group and to (61.15±9.29)％,(57.52±10.81)％ in smoking group(P＜0.01).Also the degree of decreasing expression rates of GP Ⅱ b/Ⅲ a and P-Selectin was nore markedly in non-smoking group than that in smoking group (P ＜ 0.05).The results indicate that expressions of GP Ⅱ b/Ⅲ a and P-Selectin on the surface of platelets are increased in the elderly smoker patients with ACS,and smoking may decrease the effect of anti-platelet agents.

Objective To investigate the effect of combined anti-platelets drugs on platelet activation in the elderly patients with acute coronary syndrome (ACS).Methods Totally 72 elderly patients with ACS were divided randomly into two groups according to age ≤ 80 years and ＞ 80 years.Aspirin 100 mg/d plus clopidogrel 75 mg/d were used in all the patients for 2 weeks.The positive glycoprotein Ⅱb/Ⅲa and P-selectin expressions on the surface of platelets were assessed with flow cytometry (FCM) after the platelets were activated by adenosine diphosphate (ADP) and arachidonic acid.Results The expressions of GP Ⅱb/Ⅲa and P-selectin were (73.5± 11.0,71.2±8.7) ％ at baseline and (51.3±9.1,57.3±12.4)％ after anti-platelets medicine more than 14 days in group of age≤80 years.than 14 days.The expression of GP Ⅱb/Ⅲa and P-selectin were (78.3 ±12.7,75.8±8.6)％ on the surface of platelet at baseline in group of age＞ 80 years,after anti-platelets medicine treatment were (41.2±8.5,47.3±10.3)％.The positive expressions of GP Ⅱb/Ⅲa and P-selectin in group of age＞ 80 years were decreased compared with those in group of age≤ 80 years after combination of medicines treatment (P＜0.05).Conclusions Combined aspirin and Clopidogrel treatment have a more strong effect in inhibiting the activation of platelets in the elderly patients more than 80-year with ACS.

Objective To compare the safety and efficacy of varied treatments for cardioversion of paroxysmal atria] fibrillation (AF) in the aged patients and to explore choice of electrical cardioversion with direct current. Methods Clinical data of cardioversion with lanatoside (cedilandid) or propafenone, a sodium channel blocker prolongs refractoriness, for 57 aged patients with paroxysmal AF were summarized to observe their cardioversion and control of heart rate. And, synchronous electrical cardioversion will be offered to those with severe complications and ineffective with drug treatment within 24 h after the onset of AF. Results An emergency cardioversion ratio was 28.1 % with lanatoside within 24 h with a satisfactory control of ventricular rate, as compared with that of 62.2% with propafenone (P

Objective To explore the role of human papillomavirus (HPV) in squamous cell carcinoma of the larynx.Methods A cohort of 152 laryngeal squamous cell carcinoma (LSCC) patients,40 premalignant lesions of the larynx,and 40 vocal fold polyp patients was evaluated for the expression of HPV16 E7 protein by immunohistochemistry (IHC).E7 protein expression was correlated with clinicopathological features and outcomes.Results The expression of E7 protein in vocal fold polyp was negative,and it's positive expression in precancerous lesions and laryngeaI carcinomas was 2.5％,and 32.9％,respectively.There were no other significant clinical or demographic differences between pl6-positive and-negative cases.There was no difference in overall survival (OS) between E7-positive and-negative patients with 5-year survival of 79％ and 66％ for p16 positive and negative patients,respectively (P =0.581).There was no statistically significant difference in failure-free survival (FFS) with 5-year FFS of 57.8％ and 42.3％ for p16 positive and negative patients,respectively (P =0.579).Conclusions E7 expression is infrequent in laryngeal carcinomas.There are no statistically significant correlations between E7 IHC status and OS or FFS.

Objective To observe the expression of apoptosis and invasion genes in different tissues of laryngeal lesions,and to detect the content of proliferation related protein and proliferation inhibition gene.Methods In our hospital,the clinical diagnosis of laryngeal carcinoma,precancerous lesions and vocal polyps in 88 cases of laryngeal carcinoma,surgical excision of lesion specimens cut from the amount of Pro apoptotic genes and promote invasion and proliferation related protein,gene the content of tissue proliferation inhibition gene detection.Results The laryngeal carcinoma group of Pro apoptotic genes nicotinamide adenine dinucleotide phosphate oxidase 1 (NOX1) and large tumor suppressor gene 1 (LATS1) were all significantly lower than lesion group and polyp group (P ＜ 0.05).Laryngeal carcinoma invasion promoting gene tumour necrosis factor receptor associated factor 6 (TRAF6),and cellular FADD-like interleukin1βconverting enzyme inhibitory protein (c-FLIP) content were significantly higher than that of laryngeal pre cancerous lesions and vocal polyps (P ＜ 0.05).The proliferation related protein Cyclin-dependent kinase 6 (CDK6) and E2F1 in laryngeal carcinoma were significantly lower than that in the lesion and polyp group,and cyclin D1 (CCND1),Bmi-1,and Livin contents were significantly higher than that in the lesion group and the polyp group (P ＜ 0.05).The levels of differentiated embryo-chondrocyte expressed gene 1 (DEC-1),IκB kinase 16(IKK16),large tumor suppressor gene 1 (LAST-1),receptor-interacting proteins-1-(RIP-1),and c-myc promoter binding protein-1 (MBP-1) in the tissue of laryngeal carcinoma were significantly lower than those in the lesion group and polyp group (P ＜ 0.05).Conclusions The laryngeal carcinoma invasion promoting gene was higher than that in other tissues,inhibition of gene content was lower than that of other tissues proliferation related protein gene,apoptosis and proliferation,apoptosis and invasion of lesions in gene expression level,proliferation related protein and proliferation inhibition of gene content and laryngeal squamous cell carcinoma were related to laryngeal disease prevention significance of detection.

Objective To investigate the role of scavenger receptor class B type 1 (SR-B1) signaling pathway in serum amyloid A (SAA)-induced angiogenesis in rheumatoid arthritis (RA).Methods The expression and location of SR-B1 in RA and osteoarthritis (OA) synovial tissues were observed by immunohistochemistry.And SR-B1 expression in the resting human umbilical vein endothelial cells (HUVECs) was detected by immunoflourescence.Wound repair assessement and tube formation assessement were employed to evaluate the effect on cell migration and tube formation stimulated by SAA and/or anti-SR-B1 antibody.The t-test and one-way analysis of variance (ANOVA) were used for statistical analysis.Results ① SR-B1 was significantly highly expressed in RA tissue samples (A=6 788±819) when compared to the minimal expression in OA (A =31 849±6 977,t=3.567,P＜0.01).Positive staining of SR-B1 was observed in RA synovial vascular endothelial cells and perivascular areas.② Strong staining for SR-B1 was observed in all HUVECs tested.③ Significant wound healing induced by SAA (MI=2.50±0.17) was found compared with the untreated controls (MI=1.00±0.09,q=14.38,P＜0.01),and the effects were inhibited in the presence of anti-SR-B1 antibody (MI=1.16±0.14,q=13.02,P＜0.01).④ Compared to the untreated group (branch point number:6.6±0.8),there was an enhanced formation of branched and capillary-hke tube structure followed by SAA stimulation (branch point number:19.0±1.1,q=25.04,P＜0.01) after culturing for 72 h,whereas,tube formation decreased markedly upon pre-treated with anti-SR-B1 antibody (branch point number:7.6±1.3,vs SAA,q =23.32,P＜0.01).Conclusion Our present study suggests that serum amyloid A may induce angiogenesis via SR-B1 signaling pathway in RA.

Objective:To study the association between set shifting in ADHD and NRXN1 gene.Methods:According to the diagnostic standard of the Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition (DSM-Ⅳ).Totally 756 Han Chinese ADHD children and 133 Han Chinese unaffected children were involved in the analysis.Set shifting,including number connection time (NOTIM),number connection error times (NOERR),number and letter alternant connection time (LETIM),number and letter altemant error times (LEERR),and shifting time(each value was the difference between LETIM and NOTIM),was recorded by trail making test (TMT).Two SNPs (Single Nucleotide Polymorphisms) of NRXN1 gene,rs1592728 and rs4971652,were chose to detect genotype using Sequenom Mass ARRAY system by real time quantitative polymerase chain reaction.Linear regression analysis was applied to explore the influence of set shifting,then,stratified analysis was used to study the association between set shifting and rs1592728 as well as rs4971652 in ADHD cases and controls separately.Results:Linear regression analysis showed that there was a negative correlation between set shifting and month (β =0.42,P ＜0.001),IQ (β =0.34,P ＜ 0.001),group (β =0.08,P =0.004),GG genotype of rs4971652 (β =0.06,P =0.039).Among ADHD children,there was a negative relationship between set shifting and month (β =0.46,P ＜0.001),IQ (β =0.32,P ＜ 0.001),GG genotype of rs4971652 (β =0.07,P =0.018),a positive association was found between set shifting and ADHDSUB (β =0.06,P =0.033),set shifting damaged higher with ADHD-Ⅰ children than ADHD-C children.While,in controls,set shifting was in inverse relation with month (β =0.25,P =0.002) and IQ (β =0.40,P ＜ 0.001).Conclusion:It suggests that the association between shift in ADHD children and polymorphism of NRXN1 gene is existed,set shifting deficit less seriously in GG genotype.

Background and purpose: Osteopontin (OPN) is a glycophosphoprotein that is expressed by numerous human cancer cells. The function of OPN in skeletal modeling and remodeling, bone resorption, angiogenesis and tumor cell metastasis and progression through binding with integrin and CD44 receptors were studied. Our purpose of the study was to detect the level of osteopontin(OPN) and CD44 variant isoforms(CD44v6) in multiple myeloma (MM) patients, and to explore the relationship between OPN and CD44v6 with the progress of MM. Methods: 32 MM patients were admitted to our hospital from Sep. 2007 to Dec. 2008. The patients were divided into two groups, group A (untreated and relapsed MM patients) and B (stable MM patients), and the control group including 15 subjects were the benign anemia patients or healthy people who suffered bone fracture. Bone marrow mononuclear cells (MNCs) and bone marrow stromal cells (BMSCs) from MM patients and subjects were investigated as potential OPN and CD44v6 producers. The level of OPN and CD44v6 of the conditioned media from MM patients and subjects were analyzed by ELISA. Results: The OPN level in group A (19 cases) was significantly higher than group B (13 cases) and control group (P<0.05). The CD44v6 level of 14 patients in group A was significantly higher than that of 10 cases in group B and control group (P<0.05); The OPN level of MM patients was correlated with the level of CD44v6 (r=0.52, P=0.000), the percentage of plasma cells in the bone marrow (r=0.74, P=0.000), M protein (r=0.53, P=0.014), and β2-microglubin (r=0.62, P=0.002). Conclusion: The increase of OPN and CD44v6 is associated with progress and pathogenesis of MM,and may be involved with tumor burden, stage and tumor invasion.

Objective To analyse the effect of mobilization and collection's time of peripheral blood stem cells(PBSC) from 8 cases of healthy donors. Methods The 10 donors were studied by self-control design.The number of aphereses was two times every donors. Healthy donors received rhG-CSF according to two different PBSC collection starting time: group 1:PBSC collection was starts 2 hours(2 h) after the fourth day or the fifth day of rhG-CSF. group 2:PBSC collection was starts 4 hours(4 h) after the fourth day or the fifth day of rhG-CSF.(The first dose of rhG-CSF was given on day 1, considering day 0 as the day before starting mobilization). In this study we have compared with two groups of apheresis product. Results The MNC count was significantly higher for donors 4 h collection (groups 2) then 2 h. ( groups 1)(P

Allotransplantation of peripheral blood-derived hemopoietic stem cells is the best therapy for acute leukemia. With increases of only-child families, sibling donors are decreasing. Moreover, the probability is low and time consuming is long to search a matched hemopoietic stem cell donor from the Chinese Marrow Donor Program. Haploidentical stem cell transplantation would bring a hope for donor resource. However, difficult transplantation and high incidence of graft versus host disease are two risks. Based on modified regimen and cyclosporine A+short-term amethopterin, mycophenolic acid, interleukin-11, anti-lymphocyte immunoglobulin and hemopoietic stem cells mobilized by recombinant human granulocyte colony-stimulating factor can prevent graft versus host disease. This therapy succeeded in two cases with no severe graft versus host disease.