Objective To investigate the effects of rosiglitazone on the endothelial regeneration and neointimal formation after balloon injury in rat aortic.Methods Endothelial denudation of aorta in SD rats were performed with 2 F Fogarty balloon catheter.Male Rats were randomly divided into the sham-operated group,the control group,and the RSG group.Aortic tissues were harvested 7 days and 14 days after the injury.The endothelial regeneration rate,serum NO level,IA/MA ratio and PCNA expression index were detected.Results RSG enhanced the reendothelialization of the injured aorta determined by Evans blue staining.The RA/TA ratio on the 7~(th) day and the 14~(th) day were 38.20% and 75.20%(P

Objective To evaluate the correlation of the single nucleotide polymorphisms (SNPs) in CDH13 with non-small cell lung cancer (NSCLC) . Methods 115 patients with NSCLC and 110 healthy controls were included in present study. Two SNPs (rs11646213 and rs7195409) in CDH13 were genotyped using TaqMan method. The association of these two SNPs with NSCLC was calculated and assessed. Results The genotypic and allelic frequencies of rs11646213 showed significant difference between NSCLC patients and the control group (P<0.05), (OR=0.464, 95% CI:0.273~0.789) . The genotypic and allelic frequencies of rs7195409 showed significant difference between the stage I+II and stage III+IV groups (P<0.05), (OR=0.491, 95% CI:0.243~0.991) . Conclusions The rs16146213 has a strong association with NSCLC and G allelic showed a protective effect. The rs7195409 has a strong association between stage I+II and III+IV in NSCLC, and G allele may play a protective role in the development of NSCLC.

In order to verify whether p-nitrophenylalanine-containing BAFF vaccine can be used as a candidate molecule for the treatment of autoimmune diseases with BAFF over-expression,a soluble mutant of B cell activating factor belonging to the TNF Family (smBAFF) and its pNO2Phe mutant(pNO2Phe65smBAFF),which site specific incorporated pNO2Phe at position 65 of smBAFF,were expressed and purified.In order to evaluate the feasibility of using pNO2Phe65 smBAFF to treat BAFF-over-expressed autoimmune diseases,we investigate its Lymphocyte-stimulating capacity,immunogenicity and inhibitory effect of serum on biological activity of natural BAFF.The pharmacological activity of pNO2Phe65 smBAFF was evaluated using a cGVHD(graft-versus-host disease) induced SLE mouse model.Results indicated that pNO2Phe65 smBAFF,could bind to mouse lymphocytes but could not promote the proliferation of mouse lymphocytes.Moreover,the incorporation of pNO2Phe significantly increased the immunogenicity and induced cross-antibody,which can inhibit the biological activity of natural BAFF.In cGVHD induced SLE mouse model,pNO2Phe65 smBAFF can significantly reduce the symptoms of the disease and play a therapeutic role.Therefore,pNO2Phe65 smBAFF can be used as a candidate molecule for the treatment of autoimmune diseases with BAFF over-expression.

To explore the influence of matrix materials in complicate ingredients on traditional Chinese medicine and investigate the excipients selection model based on balanced release characteristics of multicomponents, the influence of HPMC (K4M, K15M, K100M) and Carbomer (934P, 971P, 974P) was illustrated by testing in vitro release of ginsenoside-Rg1, ginsenoside-Rb1 and notoginsenoside-R1 in Panax notoginseng saponins (model drug, PNS). According to in vitro release results of PNS matrix tablets in water and artificial intestinal juice, the release curves were analyzed with Peppas equation and simulating factor (f). Significant differences in k value and n value among ginsenoside-Rg1, ginsenoside-Rb1 and notoginsenoside-R1 existed in various formulations. The release behaviors from various excipients could be described with Non-Fickian transport or super Case II transport pattern. The f2 values for ginsenoside-Rg1, ginsenoside-Rb1 and notoginsenoside-R1 in 971P matrix tablet containing 30% Carbomer 971P were 74.91, 53.45, 57.89 in water and 79.35, 55.51, 51.89 in artificial intestinal juice, respectively. The release profiles fit for the regulation of FDA. The result revealed that the balanced release rates of Rg1, Rb1 and R1 in 971P matrix tablet were obtained.
Acrylates ; chemistry ; Acrylic Resins ; chemistry ; Delayed-Action Preparations ; Excipients ; chemistry ; Ginsenosides ; isolation & purification ; pharmacokinetics ; Lactose ; analogs & derivatives ; chemistry ; Methylcellulose ; analogs & derivatives ; chemistry ; Panax notoginseng ; chemistry ; Plants, Medicinal ; chemistry ; Saponins ; administration & dosage ; isolation & purification ; pharmacokinetics ; Tablets

Massive hemorrhage from infected anastomosed site between the graft artery and the external iliac artery is one of the most serious complications of renal transplantation. Clinically, it is a rare but fatal occasion. We reported here one case of hemorrhage with infection in the iliac artery anastomosed site treated successfully with hypogastric artery autograft interposition in March 2003.
Adult ; Anastomosis, Surgical ; Arteries ; transplantation ; Bacterial Infections ; complications ; Hemorrhage ; etiology ; surgery ; Humans ; Iliac Artery ; surgery ; Kidney Transplantation ; Male ; Postoperative Complications ; Renal Veins ; surgery ; Transplantation, Autologous

To look for the toxicity fraction of Euphorbia pekinensis and discuss the vinegar processing mechanism. The level of intestinal edema, water content of intestine and stool, IC50 values of IEC-6 were applied to evaluate the toxicity of different fractions. RT-PCR was employed for detecting AQP1, AQP3 mRNA expression. The petroleum ether (PE) fraction and ethyl acetate (EtOAc) fraction could significant cause intestinal edema in mice, increase the water content of duodenum, colon and stool, inhibited the mRNA expression of AQP1 and increased the mRNA level of AQP3 in colon, and the petroleum ether (PE) fraction was more poisonous. After the petroleum ether (PE) fraction was processed with vinegar, the level of intestinal edema, water content of duodenum, colon, stool and inhibition ratio of cells line were reduced. And we compared the composition change after vinegar processing, finding that the conpekinensis.
Acetic Acid ; chemistry ; Animals ; Cell Line ; Chemistry, Pharmaceutical ; methods ; Drugs, Chinese Herbal ; chemistry ; toxicity ; Euphorbia ; chemistry ; toxicity ; Male ; Mice ; Mice, Inbred ICR ; Molecular Structure

Adjuvants, Immunologic ; Animals ; Antibodies, Anti-Idiotypic ; genetics ; immunology ; CpG Islands ; Hepatitis B ; prevention & control ; Hepatitis B Surface Antigens ; genetics ; immunology ; Hepatitis B Vaccines ; administration & dosage ; immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Oligodeoxyribonucleotides ; genetics ; immunology ; Th1 Cells ; immunology ; Vaccination

BACKGROUNDHuman urotensin II (UII) is the most potent mammalian vasoconstrictor identified so far. Our previous study showed that UII is a potent mitogen of airway smooth muscle cells (ASMC) inducing ASMC proliferation in a dose-dependent manner. The signal transduction pathway of UII mitogenic effect remains to be clarified. This study was conducted to investigate the signal transduction pathway in the proliferation of ASMC induced by UII.

METHODSIn primary cultures of rat ASMCs, activities of protein kinase C (PKC), mitogen-activated protein kinase (MAPK) and calcineurin (CaN) induced by UII were measured. The effect of CaN on PKC and MAPK was studied by adding cyclosporin A (CsA), a specific inhibitor of CaN. Using H7 and PD98059, inhibitors of PKC and MAPK, respectively, to study the effect of PKC and MAPK on CaN. The cytosolic free calcium concentration induced by UII was measured using Fura-2/AM.

RESULTSUII 10(-7) mol/L stimulated ASMC PKC and MAPK activities by 44% and 24% (P < 0.01), respectively, after incubating for 20 minutes. It increased CaN activity in a time-dependent manner, being 1.68 times as that of control for 24 hours (P < 0.01). It promoted the cytosolic free calcium concentration increase of 18% (P < 0.01). CsA 10(-6) mol/L and H7 50 micromol/L inhibited UII-stimulated CaN activity by 45% (P < 0.01) and 21% (P < 0.05), respectively, while PD98059 50 micromol/L had no effect on CaN activity (P > 0.05). CsA 10(-6) mol/L inhibited UII-stimulated PKC activity by 14% (P < 0.05), while having no effect on MAPK activity (P > 0.05).

CONCLUSIONSUII increases cytosolic free calcium concentration and activates PKC, MAPK and CaN. The signal transduction pathway between PKC and CaN has cross-talk.

Animals ; Calcineurin ; metabolism ; Cells, Cultured ; Enzyme Activation ; Mitogen-Activated Protein Kinases ; metabolism ; Mitogens ; pharmacology ; Myocytes, Smooth Muscle ; cytology ; Protein Kinase C ; metabolism ; Rats ; Signal Transduction ; physiology ; Trachea ; cytology ; Urotensins ; pharmacology

OBJECTIVETo explore the impact of sulfur dioxide (SO(2)) on hydrogen sulfide (H(2)S)/cystathionine-γ-lyase (CSE) and H(2)S/mercaptopyruvate sulfurtransferase (MPST) pathways in the pathogenesis of hypoxic pulmonary hypertension.

METHODSThirty-two male Wistar rats were randomly divided into four groups: control group (n = 8), hypoxic group (n = 8), hypoxic + SO(2) group (n = 8) and hypoxic + hydroxamate (HDX) group (n = 8). After 21 days of experiment, the concentration and production of H(2)S in lung tissues were measured respectively for each rat. The protein expression of CSE and MPST in intima and media of small pulmonary arteries in rats was detected with immunohistochemical method.

RESULTSCompared with control group, the mean pulmonary artery pressure (mPAP) in rats of hypoxic group was increased significantly [(33.38 ± 6.32) mm Hg vs. (16.74 ± 3.81) mm Hg, P < 0.01]. Compared with hypoxic group, the mPAP in rats of hypoxic + SO(2) group was decreased significantly [(29.65 ± 2.53) mm Hg vs. (33.38 ± 6.32) mm Hg, P < 0.01]. However, compared with hypoxic group, the mPAP in rats of hypoxic + HDX group was increased significantly [(39.44 ± 6.26) mm Hg vs. (33.38 ± 6.32) mm Hg, P < 0.01]. Compared with control group, the concentration [(2.02 ± 0.43) µmol/g vs. (3.11 ± 0.42) µmol/g, P < 0.01] and production [(19.64 ± 3.48) nmol/(g·min)vs. (28.20 ± 5.95) nmol/(g·min), P < 0.05] of H(2)S were decreased significantly in rats of hypoxic group, respectively. When treated with SO(2), hypoxic rats showed an increased concentration [(2.73 ± 0.20) µmol/g vs. (2.02 ± 0.43) µmol/g, P < 0.01] and production [(26.24 ± 1.92) nmol/(g·min) vs. (19.64 ± 3.48) nmol/(g·min), P < 0.01] of H(2)S in lung tissue compared with those without receiving SO(2) treatment. When treated with HDX, hypoxic rats showed a significant decrease in concentration [(1.64 ± 0.23) µmol/g vs. (2.02 ± 0.43) µmol/g, P < 0.05] and production [(13.94 ± 3.63) nmol/(g·min) vs. (19.64 ± 3.48) nmol/(g·min), P < 0.05] of H(2)S in lung tissue compared with those without receiving HDX treatment. As for the expression of CSE in small pulmonary arteries (SPAs), compared with control group, the expression of CSE in intima [(0.31 ± 0.02) vs. (0.36 ± 0.01), P < 0.01] and media [(0.27 ± 0.01) vs. (0.30 ± 0.01), P < 0.01] in rats of hypoxic group was decreased significantly. While compared with hypoxic group, the expression of CSE in intima [(0.35 ± 0.02) vs. (0.31 ± 0.02), P < 0.01] in SPAs of hypoxic + SO(2) group was increased significantly. With HDX treatment, the expression of CSE in intima [(0.26 ± 0.01) vs. (0.31 ± 0.02), P < 0.01] in SPAs of hypoxic group was lower than that without HDX treatment. As for the expression of MPST in SPAs, compared with hypoxic group, the expression of MPST in media [(0.32 ± 0.02) vs. (0.29 ± 0.01), P < 0.01] in SPAs of hypoxic + SO(2) group was increased significantly.

CONCLUSIONSO(2) might upregulate H(2)S/CSE and H(2)S/MPST pathways in pulmonary arteries of hypoxic rats.

Animals ; Cystathionine gamma-Lyase ; metabolism ; Hydrogen Sulfide ; metabolism ; Hypertension, Pulmonary ; enzymology ; physiopathology ; Hypoxia ; metabolism ; physiopathology ; Male ; Pulmonary Artery ; metabolism ; physiopathology ; Rats ; Rats, Wistar ; Sulfur Dioxide ; pharmacology ; Sulfurtransferases ; metabolism

OBJECTIVETo explore the indication of hysterectomy after successful resuscitation of cardiac arrest due to obstetric hemorrhagic shock.

METHODSA retrospective analysis was conducted in 13 patients with cardiac arrest due to obstetric hemorrhagic shock in 7 hospitals of Guangzhou, including 12 patients undergoing hysterectomy and 1 undergoing uterine artery embolization.

RESULTSs After successful cardiopulmonary resuscitation, only 4 of the 13 patients undergoing hysterectomy or uterine artery embolization for continuing uterus hemorrhage survived.

CONCLUSIONDetailed plans and emergency measures should be formulated in the management of high-risk pregnancies. Early diagnosis and active treatment of obstetric hemorrhagic shock with hysterectomy or uterine artery embolization are critical in preventing cardiac arrest and improving the survival of the patients.

Adult ; Cardiopulmonary Resuscitation ; Female ; Heart Arrest ; etiology ; therapy ; Humans ; Hysterectomy ; Postpartum Hemorrhage ; surgery ; Pregnancy ; Retrospective Studies ; Shock, Hemorrhagic ; etiology ; therapy ; Young Adult