Objective To explore the expression of tissue inhibitor of metalloproteinases-2(TIMP-2) in peripheral blood lymphocytes in patients with chronic obstructive pulmonary diseases(COPD) and the association of smoking and TIMP-2 mRNA. Methods The expression of TIMP-2 mRNA in peripheral blood lymphocytes was measured by reverse transcription-polymerase chain reaction(RT-PCR) in 44 patients with COPD and 42 healthy smokers.The correlation analysis was then conducted between TIMP-2 mRNA expression and smoking index. Results The expression of TIMP-2 mRNA was 0.753?0.154 and 1.170?0.196,respectively,in patients with COPD and healthy smokers(P

Objective To study blood lipids levels of patients with ischemic cerebral vascular disease (ICVD).Methods The blood lipids levels were measured in 2886 subjects with ICVD enrolled from 1991 to 2004,in which 1430 subjects from 2000 to 2004 were classified into a sub-group;400 healthy persons receiving physical examination were enrolled as controls.Results The blood TC,TG and LDL-C levels were significantly higher in the sub-group than those in the control group.Both in males and females, the morbidity of abnormal blood lipid metabolism and blood lipids level gradually increased with the age and the lapse of decades.Total cholesterol level of male younger than fifty,averaging (4.43?0.51) mmol/L, increased to (4.96?0.85) mmol/L after fifty years old.The same thing happened to females,from (4.30?0.49) mmol/L to (5.01?0.90) mmol/L.TG and LDL-C increased in patients older than fifty compared with those younger than fifty.In the groups above 50 years old,the blood lipids levels of females were significantly higher than those of males.The morbidity of abnormal blood lipid metabolism of male increased from 24.5% in (1991 to 1994) to 38.1% (2001 to 2004) and of female from 22.3% (1991 to 1994) to 38.5% (2001 to 2004).Conclusions Abnormal blood lipid in Foshan is one of the most important reasons to ICVD.

Objective:To search for a method for radical resection of pancreatic and duodenal malignancy involving the mesentery root and for the long post-operation survival of patients.Methods:From Jan.2004 to Aug.2006,a total of 26(16 male and 10 female. aged 27-70)patients with pancreatic and duodenal malignancy involving the mesentery root were treated in our department.The patients included 3 with duodenal malignancy and 23 with pancreatic malignancy.Curative resection was performed by the extended pancreaticoduodenetomy(Whipple procedure)combined with mesentery root resection(MRR)for all patients.The outcomes,safety and the post-operation survival rate were analyzed retrospectively.Results:Thirteen patients were treated with Whipple procedures combined with MRR,9 were treated with partial portal vein/superior mesenteric vein(PV/SMV)and reconstruction of the vessel,and 4 patients received pre-shunt between PV and SMV with artificial vessel graft before the extended Whipple and MRR procedures.The operation time was 2.5 to 7(4.4?1.1)hour,and blood loss was 300 to 5 000(1892?1414)ml with the blood transfusion of 0 to 5 600(2 100?1 586)ml.There was no death in our group and 7(27%)had post-operation complication.The post-operation hospital stay was 10 to 30 days.The pathologic examination showed negative surgical margins for all specimens.The tumor size was 4 to 10 (6.17?2.03)cm.After a follow-up of 9 to 38 months,the pain was relieved in all patients.One of the 3 patients with duodenal adenocarcinoma had liver metastasis at 10 months after operation,and the other 2 survived 10 months and 27 months without evidence of tumor reccurence.The patient with pancreatic micro-adenocarcinoma died of local reccurence 9 months after operation.The patient with neuroendocrine carcinoma died of organ failure 24 months after operation.The patient with lymphoma have survived for 24 months after operation.The 1-year and 2-year accumulated survival rates in the 20 cases with pancreatic ductal cancer were 86.6% and 45.6%. respectively.Conclusion:The extended Whipple procedure with MRR is safe and effective.It can obtain R0 resection in patients with malignant tumors(over 5 cm in diameter)in the head,neck and uncinate process of the pancreas and duodenal.

OBJECTIVETo culture rat prostate glandular epithelial cells and study their barrier functions in vitro.

METHODSRat prostate glandular epithelial cells were cultured in vitro. The expression of the tight junction protein claudin-1 was determined by immunohistochemistry, the structure and composition of the epithelial cells observed under the inverted microscope and transmission electron microscope. The transepithelial electrical resistances (TEERs) were monitored with the Millicell system. The permeability of the prostate glandular epithelial cells was assessed by the phenol red leakage test.

RESULTSCompact monolayer cell structures were formed in the prostate glandular epithelial cells cultured in vitro. Immunohistochemistry showed the expression of the tight junction protein claudin-1 and transmission electron microscopy confirmed the formation of tight junctions between the adjacent glandular epithelial cells. The TEERs in the cultured prostate glandular epithelial cells reached the peak of about (201.3 ± 3.5) Ω/cm2 on the 8th day. The phenol red leakage test manifested a decreased permeability of the cell layers with the increase of TEERs.

CONCLUSIONThe structure and function of rat prostate glandular epithelial cells are similar to those of brain capillary endothelial cells, retinal capillary endothelial cells, and intestinal epithelial cells. In vitro cultured prostate glandular epithelial cells have the barrier function and can be used as a model for the study of blood prostate barrier in vitro.

Animals ; Cell Membrane Permeability ; Cells, Cultured ; Claudin-1 ; metabolism ; Electric Impedance ; Epithelial Cells ; pathology ; physiology ; ultrastructure ; In Vitro Techniques ; Male ; Microscopy, Electron, Transmission ; Phenolsulfonphthalein ; pharmacokinetics ; Prostate ; metabolism ; pathology ; Rats ; Tight Junctions

Objective To evaluate the effects of ulinastatin on renal ischemia-reperfusion injury in patients undergoing operation on aorta with deep hypothermic circulatory arrest (DHCA ) .Methods Thirty patients ,aged 30-50 yr ,of ASA physical status Ⅲ or Ⅳ (NYHA Ⅱ or Ⅲ) ,scheduled for elective operation on aorta with DHCA ,were randomly divided into 2 groups ( n=15 each) using a random number table :control group (group C ) and ulinastatin group (group U ) .In group U ,ulinastatin 20 000 U/kg was infused via the central vein at 500-1 000 U·kg-1 ·min-1 from the time immediately after tracheal intubation until 10 min before ascending aortic cross-clamping .In group C ,the equal volume of normal saline was infused instead of ulinastatin .At 5 min before the beginning of DHCA (T1 ) and 15 min after the end of DHCA (T2 ) ,blood samples were taken from the extracorporeal circulation for determination of polymorphonuclear leukocyte counts , and plasma levels of intercellular adhesion molecule-1 , tumor necrosis factor-α, iterleukin-6 (IL-6 ) IL-8 , IL-10 , malondialdehyde , myeloperoxidase ,atrial natriuretic peptide ,cystatin C ,and creatinine .Results The polymorphonuclear leukocyte counts and plasma levels of intercellular adhesion molecule-1 , tumor necrosis factor-α, IL-6 , IL-8 , malondialdehyde , myeloperoxidase , cystatin C , and creatinine were significantly lower , and the plasma concentrations of IL-10 and atrial natriuretic peptide were higher in group U than in group C ( P< 0.05 ) . Conclusion Ulinastatin can attenuate renal ischemia-reperfusion injury in patients undergoing operation on aorta with DHCA and inhibition of inflammatory responses is involved in the mechanism .

AlM:To evaluate the efficacy of combined pranoprofen eye drops and artificial tears on the treatment of mild to moderate dry eye syndrome after trabbeculectomy.METHODS:This prospective case control study included 63 cases (63 eyes) of patients with mild to moderate dry eye syndrome after trabbeculectomy in our hospital from November 2013 to June 2013. All subjects were randomly divided into two groups. Observation group was treated with combined pranoprofen eye drops and artificial tears and control group received simple artificial tears marking the eyes at 1, 2, 4wk. The patient's symptoms, signs, BUT, S▏t, and FL were observed before treatment and 1, 2, 4wk after treatment.RESULTS: After 2wk, the symptoms of observation group were improved, there was statistically significant difference (P<0. 05). FL difference of each group was statistically significant ( P<0. 05 ); After 4wk, symptoms and signs were improved. There was statistically significant difference ( P < 0. 05 ). The BUT of the observation group and corneal FL scores of two groups showed significant differences (P<0. 05). CONCLUSlON: Artificial tears joint pranoprofen eye drops has good curative effect in the treatment of mild to moderate dry eye syndrome after trabbeculectomy.

Objective To study the influence factors of real-time shear wave elastography(SWE) on the elasticity of focal liver lesions (FLLs) measurement.Methods The mean Young's modulus of 160 FLLs were measured by SWE.The relation between elasticity with different aspects of FLLs were analyzed including postures (supine and left lateral position),respiratory phases (end of inspiratory and expiratory),the probe position (rib and intercostal space) and different operators.Results There were significant differences between different postures and respiratory phases in the elasticity measurement of FLLs by SWE (P ＜0.05).There was no significant difference between robe position and different operators in the elasticity measurement of FLLs by SWE(P ＞0.05).Conclusions The postures and respiratory phases can impact the elasticity measurement of FLLs by SWE.

Heterogeneous nuclear ribonulcleoprotein(hnRNP)plays a variety of roles in pre-mRNA splicing, nuclear export of mRNA and turnover. It is reported that hnRNP not only takes part in regulating the development of neuron and glial cells, but is closely related to various central nervous system diseases. This paper reviewed the structure, function and the role of hnRNP in the central nervous system in order to provide new insight into the molecule mechanism of nervous system diseases.

OBJECTIVE:To prepare a three-pulse drug release system of nimodipine and study its drug release.METHODS:Solid dispersion technique and dry-coating method were respectively applied to prepare immediate-release mini-tablets and Pulsatile mini-tablets with lag-time of 4 h or 8 h.Then those mini-tablets were filled into capsule to obtain a three-pulse drug release system and subjected to in vitro dissolution test.DSC was employed to determine drug status in solid dispersion.RESULTS:Immediate-release mini-tablets were released more than 95% in 30 min.Pulsatile mini-tablets were released less than 10% in 4 h or 8 h of lag-time period.After lag-time period,pulsatile mini-tablets were released completely in 3 h.The whole pulsatile drug release system achieved three times of drug release at 5 min,4 h,8 h,respectively.Nimodipine kept amorphous form and were delivered into carrier evenly.CONCLUSION:A three-pulse drug release system of nimodipine has been prepared successfully.

Objective To evaluate the effects of ulinastatin preconditioning on protamine-induced pulmonary injury in patients undergoing cardiac valve replacement under cardiopulmonary bypass (CPB).Methods Sixty NYHA class Ⅱ or Ⅲ and ASA physical status Ⅱ or Ⅲ patients of sexes,aged 21-59 yr,scheduled for elective cardiac valve replacement under CPB,were randomly divided into 3 groups (n =20 each):group control one protamine given via central vein (group C1) ; group control two protamine given via ascending aorta (group C2) ;group ulinastatin preconditioning (group U).Heparin was neutralized with protamine after termination of CPB.Ulinastatin 20 000 U/kg was infused via the central vein at a rate of 500-1000 U· kg-1 · min-1 starting from the time point after tracheal intubation until 10 min before cross-clamping of superior vena cava and inferior vena cava in group U.At 10 min after termination of CPB,protamine 4 mg/kg was infused over 8 min via the right internal jugular vein in groups C1 and U,or via the aortic root in group C2.Blood samples were obtained from the left atrium and right atrium at 5 min before neutralization of heparin with protamine (T1) and 15 min after neutralization of heparin with protamine (T2) for determination of polymorphonuclear leukocyte (PMN) and platelet (Plt) counts,and plasma concentrations of thromboxane B2 (TXB2) and 6-keto-prostaglandin F1α (6-keto-PGF1α).Blood samples were obtained from the left atrium at T1 and T2 for determination of the levels of TNF-α,IL-1,IL-8,CD11b/CD18,C3a,C5a,and malondialdehyde (MDA) and superoxide dismutase (SOD) activity and for blood gas analysis.Alveolar-arterial oxygen gradiant (A-aDO2),respiratory index (RI) and oxygenation index (OI) were calculated.Pulmonary arterial pressure (PAP) was recorded.Results Plt and PMN counts in the blood obtained from the left atrium were significantly lower,and plasma TXB2 concentrations in the blood obtained from the left atrium were higher at T2 in group C1,and the plasma 6-keto-PGF1α concentrations and SOD activity in the blood obtained from the left atrium were higher at T2 in groups C2 and U than those in the blood obtained from the right atrium (P ＜0.05).Compared with group C1,Plt and PMN counts and plasma 6-keto-PGF1α concentrations were significantly increased,the levels of plasma TXB2,TXB2/6-keto-PGF1α,TNF-α,IL-1,IL-8,C3a,C5a and MDA were decreased,CD11b/CD18 expression was down-regulated,PAP,A-aDO2 and RI were decreased,and OI was increased at T2 in C2 and U groups (P ＜ 0.05).There were no significant differences in the parameters mentioned above between groups C2 and U (P ＞ 0.05).Conclusion Ulinastatin preconditioning can inhibit protamine-induced pulmonary injury in patients undergoing cardiac valve replacement under CPB,and the effect is similar to that of protamine administered via the aorta.