Objective To investigate the risk factors and prognosis of perioperative myocardial infarction in the patients undergoing noncardiac surgery. Methods Clinical data of 562 patients who had accepted non-cardiac surgery was collected and retrospectively analyzed. The risk factors, treatments and outcomes of all these patients were recorded and analyzed. Results A total of 19 out of the 562 patients had perioperative myocardial infarction ( PMI) . The incidence was 3. 4% . The mean occurrence time was (43. 5 ± 12. 7)h after operation. Eleven PMI patients (11 ∕ 19) were non-ST-segment elevation myocardial infarction and eight patients (8 ∕ 19) were ST-segment elevation myocardial infarction. Thirteen PMI patients were left coronary artery occlusion and six patients were right coronary artery occlusion. Advanced age, history of myocardial infarction, unstable angina, change of ST-T segment on electrocardiography (ECG), multivessel diseases, diabetes,hypertension,and high risk non-cardiac surgery were the risk factors of PMI and positively correlated to PMI. Sixteen PMI (16 ∕ 19) patients accepted PCI treatment and three patients (3 ∕ 19) accepted drug conservative treatment. Two patients had unstable angina attack after treatment and one patient had arrhythmia. The heart function in two patients decreased by one or more than one class within the follow up of 1 year. No patient had recurrent acute myocardial infarction or deceased during follow-up. Conclusions Many factors could lead to PMI. Making preoperative assessment, recognizing patients of high risks and dealing with patients who had PMI in time was necessary.

Objective To compare the rates of major adverse cardiovascular events(MACE)and bleeding events of three different antiplatelet strategies during temporary withdrawal of antiplatelet therapy for non-cardiac surgery within 1 year after drug-eluting stent (DES)implantation.Methods Retrospectively analyzed 42 patients who had accepted non-cardiac surgery and required temporary withdrawal of antiplatelet therapy within 1 year after drug-eluting stent implantation. The patients were divided into three groups according to the bridging antiplatelet strategies they received.All patients discontinued clopidogrel 5 to 7 days before the non-cardiac surgery. The tirofiban group was treated with intravenous tirofiban 0.4ug/kg·min in the first 30 min followed 0.1μg/(kg·min). The dosage was reduced by half for patients whose Creatinine clearance were less than 30 ml/min.The low molecular weight heparin group was treated with subcutaneous enoxaparin (Clexane 4000 AxaIU, once per day) .The asprin group was given only oral asprin(100 mg, once per day) . Tirofiban and low molecular weight heparin were continued until clopidogrel was resured. Perioperative cardiovascular events and serious bleeding were recorded. Results The rates of major adverse cardiac events in the tirofiban and the low molecular weight heparin group were lower than the aspirin group. Acute myocardial infarction caused by confirmed in-stent thrombosis was diagnosed in one patient in the aspirin group. One case of asymptomatic ST-T changes was found in the low molecular weight the aspirin group. 3 cases in the aspirin group presented ST-T changes on ECG and among them 1 case was STEMI due to LAD thrombosis requiring primary and 2 other cases were agina pectoris.There were no significant differences in bleeding events among the three groups.Conclusions Potential for the perioperative management with tirofiban or low molecular weight heparin is safe and feasible for patients who had recently undergone DES implantation and required noncardiac surgery with the interruption of antiplatelet therapies.

OBJECTIVE:To study the classification of deviation in drug production. METHODS:From the perspective of dom-inant and hidden deviation,combining with the theory of risk management,risk of deviation was evaluated with different risk man-agement tools to define the severity of the deviation,and it was handled by different methods. RESULTS & CONCLUSIONS:Ac-cording to the identifiability of deviation in actual management,the deviation was divided into dominance and hidden deviation. The dominant deviation can be divided into deep and shallow level. Whether the causes of deviation could be cleared and the conse-quences could be estimates were judged after the shallow level classification,and the deviation was further divided into simple and complex deviation. As for deviation complex,it could be evaluated with the tools of risk management to define the deviation severi-ty. As for hidden deviation,it needed beforehand preventing with the tools of risk management directly to define deviation levels and provide reference for preventive measures. In the process of deviation management,key point is to relay on the scientific meth-od to identify and classify deviation,and divide the influence levels. Combining the theory of risk management to select and use risk tools is the effective way to solve the problem.

Background Proliferative vitreoretinopathy (PVR) is one of the major causes of retinal detachment surgery failure.Based on proteomic studies of PVR vitreous,the insulin-like growth factor binding protein-6 (IGFBP-6) protein was specifically expressed in the vitreous and serum of PVR patients.Furthermore,its expression level is higher in the vitreous and serum in severe PVR patients than that in mild PVR patients.Objective This experiment was to detect the expression of IGFBP-6 in a PVR rat model.Methods Seventy 7-week old male SPF Wistar rats were included and were randomized into the PVR model group and control group.A mixture of RPE-J cell suspension(5 μl) and platelet-rich plasma (5 μl) was intravitreally injected in the left eyes of adult Wistar rats to establish the PVR model,and normal saline solution was administered in the same way in the control group.The rat eyes were clinically examined 1 week,2,3 and 4 weeks after injection,and PVR was graded based on the criteria of Francine.The animals were sacrificed after 1 week,2,4 or 8 weeks for the preparation of retinal sections and liver extraction.Expression levels of IGFBP-6 mRNA in the rat retina and liver were assayed by real-time Q-PCR.The expression of IGFBP-6 protein in the rat serum and vitreous was detected by ELISA.The use of animals complied with the Regulations for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results Purified IGFBP-6 RNA was extracted from the liver and retina of Wistar rat and quantified by real-time Q-PCR.The expression level of IGFBP-6 mRNA in retina was (3.79± 1.33) × 10-4 in the PVR model rats,showing a significant decline in comparison with the control rats with a level of(8.32±2.96) × 10 4,4 weeks after injection (t =3.42,P＜0.01).The expression of IGFBP-6 mRNA in the 4th week was significantly lower than that of 1 week,2 or 8 weeks after the establishment of the PVR model(P＜0.05).No significant difference was found in the IGFBP-6 mRNA level in the liver between the PVR group and control group(27.60± 14.01 × 10 4 vs.25.01 ± 12.04 ×10-4,respectively),as well as among the different time points(P＞0.05).IGFBP-6 mRNA content in the retina was significantly reduced in grades 1,2 or 3 of the PVR groups compared with the control group(P＞0.05),but there was no significant difference among the different grades of PVR groups (P＞0.05).Concentrations of IGFBP-6 protein in grades 1,2 and 3 of the PVR model group were (221.00 ± 19.32),(229.63 ± 18.89) and (225.70 ± 26.71) μg/L,with a significant elevation in comparison with (173.25 ±21.11) μg/L of the control group (t =2.14,P＜0.05).However,there was no significant change among the different grades of PVR groups(t=1.24,1.46,P＞0.05).The concentrations of IGFBP-6 protein in the vitreous and serum were higher in PVR rat samples (vitreous:225.44±19.36 μg/L;serum:108.48 ± 15.78 μg/L) than in control rats (vitreous:173.25 ± 21.11 μg/L,serum:95.96 ±17.40 μg/L)(P＜0.05).Conclusions The concentrations of IGFBP-6 protein in the vitreous and serum increase in PVR rats.The results indicate that the increased IGFBP-6 in the vitreous might be a localized autocrine secretion of the eye.

Euphorbia kansui (EK) is a toxic herbal drug, and often used after vinegar-processing to reduce its toxicity. In present study, a 1H-NMR based metabonomic approach was used to evaluate the detoxification effect of vinegar-processed EK. The water extracts of EK and VEK were administered orally to male SD rats at doses of 9 g x kg(-1) x d(-1) for 1 week, respectively, and one more week observation was further conducted. The control group was orally given with saline. Histopathological studies of liver samples on the 8th and 15th day were conducted, and the metabolites of rat urine and liver were analysed by 1H-NMR. Histopathological studies of liver samples from EK and VEK treated rats showed no negative impacts. In metabonomic analyses of urines, changes of metabolites indicated liver damages, kidney lesions and imbalance of gut microbes in the second week. VEK-treated rats showed a quite lower toxicity compared with EK-treated ones. The present study revealed that the metabonomic approach might be helpful for the evaluation of toxicity of EK and detoxic effect of VEK.
Acetic Acid ; chemistry ; Animals ; Chemistry, Pharmaceutical ; Drugs, Chinese Herbal ; chemistry ; pharmacokinetics ; toxicity ; Euphorbia ; chemistry ; Inactivation, Metabolic ; Liver ; drug effects ; metabolism ; Magnetic Resonance Spectroscopy ; Male ; Metabolomics ; methods ; Rats ; Rats, Sprague-Dawley ; Urinalysis

Objective To study the supporting role of traditional Chinese medicine GanFuAn in the treatment of high-risk state of liver cancer by color Doppler ultrasound.Methods Based on a number of joint detection of tumor markers,85 patients of liver cancer were selected from patients with chronic hepatitis B.Among these 85patients,50 patients were selected in a treatment group and treated with Chinese herbal preparation GanFuAn,with ultrasound and tumor markers serving as joint monitoring; while the other 35 patients were selected in a control group and treated with conventional treatment.Results In the treatment group,the liver tumor markers or liver tumor continually diminished.5 cases showed tumor disappear.38 cases showed effective results,while 7 cases showed no effects.The total incidence rate of liver cancer was 14％;while in the control group,none case showed tumor disappear.20 cases showed effects and 15 cases showed none effects.The cumulative incidence rate of liver cancer induced by chronic hepatitis was 43％,with all the cases have been confirmed by pathology.Conclusion Color doppler ultrasound was an intuitive,non-invasive dynamic method to monitor liver tumor's growth and decline.

PAC1 is the neuropeptide pituitary adenylate cyclase activating polypeptide (PACAP) preferring receptor, which belongs to class B G protein-coupled receptors (GPCR) family. PAC1 mediates the most effects of PACAP as neurotransmitter, neuroregulator and neuroprotectant, while its high expression has close relationship with some physiological and pathological processes such as nerve-injury and tumor. To further understand the function of PAC1, a cell line that expressed inducible PAC1 was constructed to achieve Doxycycline (Dox) dependent expression of PAC1 in CHO (Chinese hamster ovary) cell using the improved Tet (tetracycline)-on Advanced System. First, the PAC1-EYFP fusion gene composed of PAC1 gene and gene encoding EYFP (enhanced yellow fluorescent protein) was sub-cloned to the tetracycline response element pTRE-Tight vector to construct the recombinant vector pEYFP-PAC1-EYFP by double enzyme digestion. Second, the tetracycline regulation components pTet-On advanced vector and the response element pTRE-PAC1-EYFP vector were both introduced into CHO cells successively and the positive clones were screened with G418 and hygromycin respectively. Third, the controlled expression of PAC1-EYFP in CHO was induced by tetracycline analogues Dox in different concentrations and the different levels of receptor PAC1-EYFP were detected. The results of fluorescence analysis and western blotting show that the cell strain with Dox dependent expression of PAC1-EYFP named PAC1-Tet-CHO was obtained. Moreover, in PAC1-Tet-CHO cells the expression of PAC1-EYFP was induced by Dox in a dose-dependent manner. The inducible expression of PAC1 still was stable after sub-culturing for more than 10 passages. It was also found by MTT assay that the higher expression level of PAC1 endowed the cells with higher proliferative viabilities. The construction of controlled expression system of PAC1 will lay a foundation for the further research on PAC1 profiles.
Animals ; Blotting, Western ; CHO Cells ; Cloning, Molecular ; Cricetinae ; Cricetulus ; Genetic Vectors ; Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I ; biosynthesis

e: Objective:To establish a useable animal model for the purification and immunotherapy of HSP with the observation of the growth rule of S180 sarcome tumor tissue and the immunohistochemical expression of different HSP in mice. Methods:The tumor incidence?the role of growth?the survival time and immunohistochemical expression of different HSP were observed after the S180 sarcome cells were inoculated at Balb/C mice back subcutaneous in different dose. Results:Sarcoma were formed in 100%.There are significant difference between vary dose in survival time, The expression was positive in HSP60?70?90? and grp94, and HSP70 expression was enhanced whereas HSP90? expression was decreased after heat shock treated. Conclusion:The use of S180 sarcome in mice is a good model to observe the expression of different HSP and the tumor tissue is suitable to purify. The model can be also used in the library study of HSP tumor vaccine.

Effects of traditional Chinese medicine salvianolate combined with alprostadil and reduced glutathione on delay of progression in patients with acute kidney injury has been confirmed, but the role of this combination therapy on the progression of chronic renal failure is uncertain.

Animals ; Fatigue ; enzymology ; Male ; Mammillary Bodies ; metabolism ; Nitric Oxide Synthase Type I ; genetics ; metabolism ; Physical Exertion ; physiology ; Random Allocation ; Rats ; Rats, Wistar ; Stress, Physiological ; physiology