0.05).Conclusions The level of plasma Hcy in BD patients are higher than that of in the controls.Hyperhomocysteine may take part in the pathogenesis of BD, but the MTHFR gene C677T genotypes are not associated with BD.

Stroke is a cerebrovascular disease type with high morbidity and mortality,of which ischemic stroke accounts for about 80％.Now,it is believed that the inflammatory mechanisms play an important role in the progress of pathological physiology of ischemic stroke.Peripheral T lymphocytes infiltrate to the damaged area within 24 hours after cerebral ischemia and are involved in the advance of inflammatory process of brain tissue.As a subtype of T lymphocytes,regulatory T cells are mainly located in the ischemic penumbra; however,at present,its role in ischemic brain injury remains controversial.The research on the mechanisms of regulatory T cells in ischemic stroke may contribute to further understanding of the pathogenesis of ischemic stroke and find new therapeutic targets.

Objective To evaluate the blood-saving effect of combination of hemocoagulase artox for injection and tranexamic acid (TXA) in patients undergoing off-pump coronary artery bypass grafting (OPCABG).Methods Eighty ASA Ⅱ patients (NYHA Ⅰ or Ⅱ),aged 50-70 yr,weighing 50-100 kg,scheduled for elective OPCABG,were randomly divided into 4 groups (n =20 each):control group (group C),hemocoagulase atrox for injection group (group H,n =20),TXA group (group T) and hemocoagulase atrox for injection + ·TXA group (group HT).Hemocoagulase atrox 0.04 U/kg (the highest dose 4 U) was injected at 20 min before skin incision,and additional hemocoagulase atrox 2 U was given every 2 h starting from 15 min after administration of protamine until the end of operation in group H.TXA 20 mg/kg was injected intravenously at skin incision,followed by a continuous infusion of TXA at 10 mg· kg-1 · h-1 until the end of operation in group T.Hemocoagulase atrox and TXA were given as the method described in groups H and T.Venous blood samples were taken from the central vein before operation,at the end of operation,and 24 h after operation to determine the plasma D-Dimer concentration.The amount of blood loss,allogeneic red blood cells and plasma infused during operation,volume of drainage during 0-6 and 6-24 h after operation,total volume of drainage and volume of allogeneic blood transfused during operation were recorded.The deep vein thrombosis was recorded.Results Compared with group C,the amount of blood loss during operation was significantly decreased in groups T and HT,and the allogeneic red blood cells and plasma infused during operation,and volume of drainage during 0-6 and 6-24 h after operation,and total volume of drainage were significantly decreased in groups H,T and HT (P ＜ 0.05).Compared with groups H and T,the allogeneic red blood cells and plasma infused during operation,and volume of drainage during 0-6 and 6-24 h after operation,and total volume of drainage were significantly decreased in group HT (P ＜ 0.05).No deep vein thrombosis was observed in the 4 groups.Conclusion The combination of hemocoagulase artox for injection and TXA provides better blood-saving effect than either alone for the patients undergoing OPCABG without increasing the risk for thrombosis.

Acidolysis kinetics on the process of the hydrolysis acidification by using glucose as the only energy sources was researched.It was concluded that the acidolysis kinetics constants are V_(max)=8.45d~(-1) and K_s=1089mg/L,under the circumstances of a temperature 37℃?0.5℃and the influent pH value 6.5.The results show that the rate of anaerobic acidification process is greater than that of completed an- aerobic or anoxic process.

Objective To study and assess clinical application of two Nickel-Titanium(NiTi)rotary instru- ments,namely ProTaper and Hero 642,in preparation of root canals.Methods 125 teeth were divided into three groups and respectively instrumented by stainless K-files,ProTaper or Hero 642 rotary instruments.All teeth were obturated with lateral condensation method.The efficiency of preparation and obturation was analyzed with radio- graphs.Results NiTi rotary instruments were better in keeping the curvature and flow of curved canals than stain- less K files.There was no transportation,apical blockage and ledge in NiTi groups.The operative time was shorter and endodontic flare-up seldom occurred in NiTi groups.Conclusion The NiTi rotary instrumentation technique could be used to prepare curved root canals effectively and quickly.The future use of NiTi engine-driven rotary in- strument appeared to be promising.

Objective To observe the change of gastric mucosal-arterial partial pressure of carbon dioxide gap [p(g-a)(CO2)] in septic shock rabbit.Methods Sixteen anesthetized and mechanically ventilated rabbit were randomly assigned to 2 groups:shock group(n=8) and control group(n=8).The rabbit in shock group were challenged with intravenous injection of 2 mg/kg Lipopolysaccharides from Escherichia coli.The rabbit in control group were intravenous injection of normal saline solution.Mean arterial pressure(MAP) and heart rate were continuously recorded by multichannel physiologic recorder.Cardiac index(CI) and superior mesenteric blood flow index(SMBFI) were continuously monitored by doppler flowmeter.Gastric mucosal partial pressure of carbon dioxide [pg(CO2)] was evaluated by gas tonometry every 10 min.Arterial and venous blood gas analysis,hemoglobin,and lactate levels were measured every 1 hour.Results The parameters remained stable in control group,but the parameters changed significantly in shock group.Compared with baseline levels,2 hours after Lipopolysaccharides infusion in shock group,MAP decreased from(78?5) mmHg to(50?2) mmHg(1 mmHg=0.133 kPa)(F=145.3 P

OBJECTIVETo observe the Chinese medicine constitution types and human leukocyte antigen (HLA)-DQA1 gene polymorphism in patients with hepatitis B (HB) virus infection in Chinese Han population of Zhejiang Province, for exploring the roles of constitution factor in pathogenesis of HB.

METHODSA total of 240 subjects, including 120 biopsy-proven chronic HB (CHB), 60 HB asymptomatic carrier (ASC) and 60 resolved from HBV infection spontaneously (RHBS) were studied. Their Chinese medicine constitution type was judged by Wangqi's classification, and their genotype of HLA-DQA1 was detected by polymerase chain reaction sequence specific primer for comparing the difference between groups in distribution frequency (DF) of constitution types and genes.

RESULTS(1) As compared with the RHBS group, DF of yin-deficiency constitution and phlegm-dampness constitution in the CHB group was significant higher (20.0% vs. 6.7% and 12.5% vs. 1.7%), and that of placid constitution was significant lower (11.7% vs. 31.7%), showing statistical significance between groups (OR = 3.5, 95% CI: 1.16-10.60; OR = 8.4, 95% CI: 1.09-65.42; OR = 0.161, 95% CI: 0.076-0.34; all P < 0.05). (2) As compared with the ASC group, DF of damp-heat constitution was significant higher (24.2% vs. 6.7%, P < 0.05, OR = 4.462, 95% CI: 1.49-13.36), and that of placid constitution was significant lower (11.7% vs. 45.0%, P < 0.01, OR = 0.285, 95% CI: 0.13-0.62) in the CHB group. (3) As compared with RHBS group, DF of HLA-DQA1 * 0201 allele in CHB group was significant higher (38.3% vs. 5.8%, P < 0.01, OR = 10.04, 95% CI: 4.48-22.48); and that of HLA-DQA1 * 0102 allele was significant lower (9.6% vs. 36.7%, P < 0.01, OR = 0.183, 95% CI: 0.10-0.32). (4) As compared with ASC group, DF of HLA-DQA1 * 0201 allele in CHB group was significant higher (38.3% vs. 7.5%, P < 0.01, OR = 7.667, 95% CI: 3.7-15.87), and that of HLA-DQA1 * 0102 allele was significant lower (20.0% vs. 9.6%, P < 0.01, OR = 0.424, 95% CI: 0.23-0.79).

CONCLUSIONBoth Chinese medicine constitution and HLA-DQA1 gene polymorphism show connection with the outcomes of HB virus infection in Chinese Han population, but the real association between them is required for further study.

Adolescent ; Adult ; Alleles ; Asian Continental Ancestry Group ; genetics ; Body Constitution ; Carrier State ; virology ; Female ; Gene Frequency ; Genotype ; HLA-DQ alpha-Chains ; genetics ; Hepatitis B ; diagnosis ; genetics ; virology ; Hepatitis B virus ; Heterozygote ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Polymorphism, Genetic ; Young Adult

Antibodies ; analysis ; Biopsy ; Child ; Child, Preschool ; Disease Progression ; Drug Resistance ; Female ; Fluorescent Antibody Technique ; Humans ; Immunoglobulin A ; analysis ; Kidney Glomerulus ; immunology ; pathology ; Male ; Nephrosis ; drug therapy ; pathology ; Prognosis ; Steroids ; pharmacology ; therapeutic use

OBJECTIVETo review the bioactivity of angiotensin II and the effects of Chinese herbs on it.

METHODThe correlative documents published in recent years were summarized.

RESULTAngiotensin II plays an important role in the development of many diseases, such as hypertension, arteriosclerosis, myocardial lesion due to ischemia and reperfusion, cardiac hypertrophy and fibrosis, dysfunction of fibrinolytic system, thrombosis, renal failure etc. Some Chinese herbs inhibit the actions of angiotensin II.

CONCLUSIONFurther researches must be done to investigate the bioactivity of angiotensin II and the effects of Chinese herbs on preventing the body tissue from being impaired by it.

Angiotensin II ; metabolism ; physiology ; Angiotensin-Converting Enzyme Inhibitors ; pharmacology ; Animals ; Blood Pressure ; drug effects ; Cardiomegaly ; physiopathology ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Heart Failure ; physiopathology ; Humans ; Hypertension ; physiopathology ; Myocardial Reperfusion Injury ; physiopathology ; Plants, Medicinal ; chemistry ; Receptor, Angiotensin, Type 2 ; physiology

Human tissue kallikrein-binding protein (Kallistatin, KAL), a secretory protein that participates in the regulation of multiple signaling pathways by binding to the extracellular receptor, however, at present has not been reported about the intracellular activity, and whether it has the similar biological activity with extracellular activity. Here we constructed no signal peptide KAL (NSK) into the adeno-associated virus vector to explore the intracellular activity of KAL. Both the endothelial cell and lung cancer cells could express KAL, but not secreted after rAAV2-NSK transfection. The proliferation and migration of human umbilical vein endothelial cells (HUVECs) were inhibited, but the apoptosis rate was not affected. The proliferation rates, mobility and tubule formation of all the three tested lung cancer cells, such as NCI-H446, NCI-H460 and A549, were inhibited to different extents. This cellular study not only confirmed the intracellular activity, but also suggested it may serve as a kind of "balance factor" in multi-targeted controlling, which may provide a new train of thoughts to explain the regulatory contradiction in PI3K-Akt signaling pathways by KAL.
Apoptosis ; Cell Proliferation ; Dependovirus ; Genetic Vectors ; Human Umbilical Vein Endothelial Cells ; metabolism ; Humans ; Lung Neoplasms ; metabolism ; Serpins ; metabolism ; Signal Transduction ; Transfection