ObjectiveTo evaluate the treatment strategy for patients with abdominal aortic aneurysm (AAA) and concomitant digestive system diseases (DSD) necessitating a surgery.Method From Mar. 1999 to Oct. 2001, clinical result of 6 cases suffering from concomitant AAA and DSD was reviewed. The AAA ranged from 4 8 to 11?cm in diameter. Cholecystectomy (for acute cholecystitis) and sigmoidectomy (for colonic cancer) were performed synchronously with AAA repair in 2 cases and 1 case respectively. Right semicolonectomy, radical subtotal gastectomy and esophagogastrectomy (all for carcinoma) were performed heterochronously with AAA endovascular exclusive grafting in one each patient, ResultGastric paresis developed postoperatively and recovered spontaneously in one patient. Esophagogastroanastomosis leakage caused a death in 1 patient. With follow up of 6～42 months the remaining 5 patients were alive, with no graft infection, nor cancer recurrence. ConclusionThe concurrent presentation of AAA and digestive tract diseases necessitating surgical intervention could be successfully managed synchronously or heterochronously.Endovascular exclusive graft of AAA is an effective therapy in patiens suffering from concomitant AAA and DSD.

AIM: To observe the targeting thrombolytic effect of a monoclonal antibody specific for cross-linked fibrin connected with liposomal urokinase(UK) in the model of rabbit artery thrombosis.METHODS: Preparation of thrombolytic solutions: with the method of controllable dialysis eradicator in liposomat, empty liposomes, liposomally entrapped urokinase and liposomally entrapped urokinase linked with D-dimer antibody were made. Experiment in vivo: a rabbit thrombosis model of abdominal aorta was induced by ferric chloride. When the blood pressure fall to the lowest, 5 different solutions were separately imported (PBS, maximal-level UK, Ab/Lip/UK, Ab/UK-Lip, Ab-UK-Lip) and observed for 40 min continuously. RESULTS: The varieties of 5 groups blood pressures were analyzed with q-test. Significant differences were observed among Ab-UK-Lip group, maximal-level UK group and others (P

Objective To illuminate relationships between epilepsy and functional and morphologic plasticity of synapse through investigating temporal-spatial expression of syanpsinⅠand the alteration of synaptic ultrastructure in hippocampus after seizure. Methods The models of epilepsy were established by injection of pilocarpine and lithium. Electromicroscope and the software of image manipulation were applied to observe the alteration of synaptic ultrastructure in hippocampus during acute phase, resting phase and chronic phase. The expressions of synapsinⅠ were determined by immunohistochemistry. Results The expression of synapsinⅠin every subfield of hippocampus decreased at 3 h after induction of seizure, reached the peak at 6 h and 12 h, which was significantly different from the control ( P

Objective To investigate the effects of adenosine preconditioning on the expression of myocardial tumor necrosis factor-alpha (TNF-α) mRNA and intercellular adhesion molecule-1 (ICAM-1) mRNA in patients undergoing off-pump coronary artery bypass graft (OPCABG).Methods Forty patients, aged 44-68 yr, with more than three coronary artery obstructions and the ejection fraction≥40%,undergoing elective OPCABG, were randomly divided into 2 groups (n=20 each): control group and adenosine group. Adenosine group received adenosine preconditioning, with the initial infusion rate of 50 μg. kg-1.min-1, then increasing to 100μg.kg-1.min-1after 1 min, finally increasing to 150 μg. kg-1 . min-1 after 2 min and maintaining for 7 min. Vascular anastomosis was started at 5 min after preconditioning. While the control group received normal saline instead of adenosine. Tissue samples of the right auricle were taken before preconditioning (baseline) and at 15 min after blood current retum to measure the expression of myocardial TNF-α mRNA and ICAM-1 mRNA. The myocardial ultrastructure was observed and hemodynamic parameters were monitored.Results The myocardial damage was milder in the adenosine group than in the control group. The expression of myocardial TNF-α mRNA and ICAM-1 mRNA was significantly lower in the adenosine group than in the control group ( P＜0.05).Conclusion Adenosine preconditioning can attenuate myocardial ischemia-reperfusion injury in patients undergoing OPCABG through down-regulating the expression of myocardial TNF- mRNA and ICAM-1 mRNA.

Animals ; Cardiomyopathy, Hypertrophic ; drug therapy ; physiopathology ; Disease Models, Animal ; Enalapril ; pharmacology ; therapeutic use ; Rabbits ; Ventricular Remodeling

BACKGROUND:Hyperbranched cationic amylopectin is a kind of nonviral gene vectors with low toxicity and good transfection efficiency. However, searching for more efficient methods to delivery it into the body and making the genes expressed are being explored.
OBJECTIVE:To study the expression of DMAPA-Amp wrapped green fluorescent protein (GFP) transferred by modified carotid injection into cerebral ischemic area.
METHODS:Male Sprague-Dawley rats subjected to middle cerebral artery infarction were randomly divided into two groups after 24 hours:experimental group (injected with GFP entrapped DMAPA-Amp via the internal carotid artery) and control group (injected with GFP entrapped DMAPA-Amp via the tail vein). These rats were put to death and their brain tissue was removed after 7 days. The expression of GFP was detected by quantitative PCR and western blot assay, and immunofluorescence staining was performed to detect the expression of GFP located near cerebrovascular endothelial cel s by frozen section.
RESULTS AND CONCLUSION:Compared with the control group, the expression of GFP was much higher in the experimental group detected by quantitative PCR and western blot (P< 0.05). Additional y, the expression of GFP located near cerebrovascular endothelial cel s by frozen section was also higher than that in the control group. Modified carotid injection could significantly promote the expression of hyperbranched cationic amylopectin derivates and GFP in the brain tissue of Sprague-Dawley rats undergoing middle cerebral artery infarction compared with tail vein injection, which indicates DMAPA-Amp and modified carotid injection may cast new lights on the therapy for angiogenesis of ischemic stroke.

OBJECTIVE: To explore the effects of Yiweining Recipe (YWNR), a compound Chinese herbal medicine, on expressions of metalloproteinase-2 (MMP-2) and cyclooxygenase-2 (COX-2) mRNAs in rats with endometriosis (EM). METHODS: Operational self-transplantation was applied in establishing the rat models. Detection of MMP-2 and COX-2 mRNAs was conducted with hybridization in situ. RESULTS: There were significant differences in the expressions of MMP-2 and COX-2 mRNAs between the untreated group and the high-dose YWNR-treated group. YWNR could reduce the expressions of MMP-2 and COX-2 mRNAs. CONCLUSION: YWNR can treat EM through reducing the positive expressions of MMP-2 and COX-2 mRNAs.

Objective To evaluate the prognostic value of lateral lymphadenectomy for advanced lower rectal cancer. Methods A total of 96 consecutive patients who underwent total mesorectal excision and lateral lymphadenectomy for advanced lower rectal cancer were retrospectively evaluated by using therapeutic index. A product of the frequency of lymph node metastasis and the cancer-related 5-year survival rate. Results The incidences of lymph node metastasis in mesorectal area, superior rectal artery area, inferior mesenteric artery area and lateral area was 21%,13%.10%and 15%respectively.The 5-year survival rate of patients with metastasis to the mesorectal area, superior rectal artery area, inferior mesenteric artery area and lateral area was 35%,25%,20%and 36%respectively.The therapeutic indexes for total mesorectal excision and lateral lymphadenectomy were 7.4 and 5.4,which were much higher than that of lymphadenectomy of the superior rectal artery area(3.3)and inferior mesenteric artery area(2.0).Local recurrence occurred in 19%(18 out of 96 cases)patients with advanced lower rectal cancer. Local recurrence rate of patients with positive lateral lymph node metastasis was 64%(9 of 14 cases),whereas it was 11%(9 of 82 cases)in those without lateral lymph node metastasis. The difference between these two groups was statistically significant(x2=22.308,P=0.000).Kaplan-Meier survival analysis showed significant improvements in median survival(80.9±2.1)m,95%CI:76.7～85.1 m vs(38±6.7)m,(95%CI:24.8～51.2 m)for patients with negative lateral lymph node metastasis over patients with lateral lymph node metastasis(log-rank,P=0.000). Conclusion The current results indicate that lateral pelvic lymphadenectomy could significantly reduce loeal recurrence and effectively improve the survival of patients with advanced lower rectal cancer. Except for total mesorectal excision, lateral pelvic lymphadenectomy should be followed in the surgery of pailents with advanced low rectal cancer.

Objective To evaluate the value of flow cytometry ( FCM) for the differential diagnosis between myelodysplasia (MDS) subtype refractory cytopenia with multiple dysplasia (RCMD) and aplastic anemia (AA). Methods The flow cytometric data of bone marrow samples from 168 cases of RCMD and 77 cases of AA were analyzed retrospectively in blind, and its results were compared with gold standard to evaluate its diagnosis values. Results The specificity of abnormal of single immunophenotype in the surface of granulocytes and myeloblasts was high (range 75.3% -100% ) , but the sensitivity was very low (range 5.4%-50% ). In parallel tests, the sensitivity and specificity of the combination of CD+34 cells≥1% , myeloblasts ≥3% , abnormal expression of CD117 in granulocytes and loss of CD13 in myeloblasts or increased intensity of CD33 in granulocytes were higher than other combinations. The sensitivity and specificity of above combination were more than 62% and 92% , respectively. In the scoring method,different score was given to 8 markers according to different diagnostic value, which were CD+34 cells ≥1 % ,myeloblasts≥3% , abnormal expression of CD117 in granulocytes, loss of CD13 in myeloblasts, increased intensity of CD33 in granulocytes, loss of CD13 in granulocytes, loss of CD10 in granulocytes, and decreased SSC in granulocytes. The sensitivity and specificity were both high if we defined that the total score ≥1.5 was RCMD and the score < 1. 5 was AA. Conclusions The value of abnormal of single immunophenotype for differential diagnosis between RCMD and AA is low. Parallel tests can increase the diagnostic sensitivity obviously and not decrease the specificity. CD+34 cells≥1% , myeloblasts≥3% and abnormal expression of CO117 in granulocytes were the most important markers. The scoring method is precise to distinguish RCMD from AA.

Objective:To study the health equity and explore the influencing factors of health inequities among those insured in New Rural Cooperative Medical System and to provide theoretical and factual basis for improvement of medical insurance system through .Method:Using concentration index decomposition to explore the sources of inequity in health outcomes and the degree of horizontal inequity in health outcomes .Results:Economical level leads that the concentration indexes of two week prevalence favor the poor , i.e.the worse the health outcome of the rich is.Economical level leads that the concentration indexes of chronic disease prevalence and self -reported health defective rate favor the rich , i.e.the worse the health outcome of the poor is .Conclusion:Economic level is the primary factors affecting two weeks prevalence , age, culture level, the employment situation is the factors al-leviate health outcomes unfair .Increase people′s economic level and cultural level , improve the situation of em-ployment is important to the health equity .