Angioplasty, Balloon, Coronary ; Drug Delivery Systems ; Humans ; Stents

Objective To study the effect of myocardial ischemic preconditioning on activity of ATPase and creatine kinase(CK) in high blood fat rat. Methods High blood fat rat mode was established from SD rats.The rats were randomly divided into three groups: ischemic preconditioning(IPC), ischemic/reperfusion(I/R) and control group.The activity of CK in coronary outflow,the activity of malonyldialdehyde(MDA),superoxide dismutase(SOD),glutathione perodxidase(GSH-Px) and ATPase in myocardium were dectected. Results CK and MDA were significantly less in IPC group than those in I/R group.In IPC group,the activity of SOD,GSH-Px,Na~(+)-K~(+)-ATPase,Ca~(2+)-ATPase and Ca~(2+)-Mg~(2+)-ATPase were much higher than those in I/R group. Conclusion Myocardial ischemic preconditioning can protect high blood fat rat from ischemic/reperfusion injury.

Objective To study the effect of folic acid on decreasing level of plasma total homocysteine(tHcy)in patients with sudden sensorineural hearing loss(SSHL) and the optimal dosage of folic acid. Methods Ten randomized controlled trials involving treatment data on 210 patients with SSHL were retrospectively studied.They were divided into seven groups according to the daily dosage of folic acid: group A to group G,0.2 mg,0.4 mg,0.8 mg,2.0 mg,5.0 mg,10.0 mg and 15.0 mg,respectively.Besides oral administration of folic acid,Vitamine B6 and B12were supplemented,and other routine treatment were performed.Fluorescence polarization immunoassay was employed to detect the plasma tHcy before and 3 months after the treatment.And the data of plasma tHcy of 210 patients without SSHL were collected and served as controls.The levels of plasma tHcy were statistically analysed between the SSHL group and control group and among group A to group G. Results The level of plasma tHcy in the SSHL group was significantly higher than that in the control group,(18.07?1.58)?mol/L vs(13.63?1.33) ?mol/L(P0.05). Conclusion The levels of plasma tHcy are significantly increased in SSHL.Folic acid may play an important role in decreasing the levels of tHcy in patients with SSHL,and a dosage of 10 mg/d for oral adminstration is well suggested.

Objective To observe the clinical efficacy of Kuijiening Paste acupoint application on ulcerative colitis (UC) patients of spleen-kidney Yang deficiency type, and its effect on serum levels of IFN-γand IL-4. Methods Sixty UC patients were divided into treatment group, control group and combined treatment group, 20 cases in each group, and were given Kuijiening Paste acupoint application plus placebo, oral sulfasalazine plus comfort paste and Kuijiening Paste acupoint application plus sulfasalazine respectively for 60 days. The clinical efficacy, mucosal lesions efficacy, mucosal pathology efficacy, changes of serum IFN-γand IL-4 were observed after treatment. Results There was no significant difference in clinical efficacy, mucosal lesions efficacy and mucosal pathology efficacy among the three groups (P>0.05). After treatment, IFN-γlevels of the three groups significantly reduced, and IL-4 levels significantly increased (P<0.01). The difference between the treatment group and the control group was significant (P<0.05). The difference between the combined treatment group and the control group was significant (P<0.01). Conclusion Kuijiening Paste acupoint application combined with sulfasalazine can regulate the level of immune cytokine in UC patients of spleen-kidney Yang deficiency type, and receive good clinical efficacy.

[Objective]To establish a method to determine the contents of glucase and fructose in extracts of leaves of Lonicera hypoglauca Miq. using HPLC-ELSD, and apply this method to study the content change of glucose and fructose in different solvents extracts in leaves of Lonicera hypoglauca Miq. [Methods] The chromatographic separation was achieved on Lichrospher NH2 column using a mobile phase composed of a mixture of acetonitrile and water(90:10) at a flow rate of 0.8mL·min-1 and the column temperature was 25℃.The ELSD drift tube temperature was set at 70℃ and the carrying gas was N2 and the flow rate of the gas was 1.6L·min-1. [Results] Glucose and fructose from extracts of the leaves of Lonicera hypoglauca Miq. could be wel separated, and the linearity ranges of glucose and fructose were shown at the concentration of 0.5840~1.168mg·mL-1 and 0.8256~1.8576mg·mL-1, the average recovery rate of glucose and fructose were 96.88%(RSD=1.11%) and 97.55%(RSD=1.15%), the stability of glucose and fructose was 2.12%and 0.38%, and the repeatability was 1.31% and 0.24%. Among the water extract,50% alcohol extract and 95% alcohol extract,the content of the glucose and fructose in the water extract was highest,which was 2.19mg·mL and 4.10mg·mL-1, the 50% alcohol extract was second, which was 1.13mg·mL-1 and 2.12mg·mL-1, and the 95% alcohol extract was lowest, which was 0.45mg·mL-1 and 0.65mg·mL-1.[Conclusion] The method is simple, accurate and has good repeatability, and can be used to determine the contents of glucose and fructose in the extract of leaves of Lonicera hypoglauca Miq. In this batch of leaves of Lonicera hypoglauca Miq., the contents of fructose and glucose were of water extract>50%ethanol extract>95%ethanol extract.

Objective To investigate the association of chest pain patients with primary level in high-sensitivity troponin T (hs-cTnT) level no more than 14 ng/L in the onset of acute myocardial infarction in pa-tients with chest pain. Methods We enrolled 3 096 participants from January 2012 to December 2013 in West China Hospital, Sichuan University. All patients were classified two groups (hs-cTnT > 14 ng/L, hs-cTnT ≤14 ng/L and no ischemia on ECG) according to hs-cTnT levels and ECG. We evaluated the risk of myocardial in-farction and death and negative predictive value in 30 days. Results Thirty-seven patients were diagnosed in having acute myocardial infarction (AMI) and 4 patients were dead in the hs-cTnT > 14 ng/L group in 30 days in the absolute risk 2.35(1.86-2.74) and 0.29(0.12-0.53); 9 patients were diagnosed as having AMI and no patients were dead in the hs-cTnT ≤ 14 ng/L group in 30 days in the absolute risk 0.58 (0.42-0.74). Conclu-sion Chest pain patients whose primary levels no more than 14 ng/L in hs-cTnT with no ischemia on ECG can be ruled out AMI in negative predictive value 99.6%. the levels of hs-cTnT which were dynamic monitored at least 5 h and still no more than 14 ng/L can rule out AMI directly.

Objective To study the present situation of legionella pneumophila(Lp) infection of low respiratory tract infection in children less than 5 years old.Methods Three hundred hospitalized patients with the diagnosis of low respiratory tract infection were enrolled in the study,191 males,109 females,aged 27 d to 5 years old,course from 1 d to 6 months.Serum antibody(IgM,IgG) of Lp serogroup 1-7 was detected by enzyme-linked immunosorbent assay(ELISA).Results In the patients,17 cases were positive,and the positive rate was 5.67%.Of the 17 children,the males(n=11) and females(n=6) did not significantly influence the positive rate(5.76% vs 5.50%).Four of them were between 27 days and 1 year old;7 were 1 to 3 years old,6 were 3 to 5 years old.The positive rates were significantly different among the 3 groups(2.53% vs 7.37% vs 12.77%) and tendentially increased following the increase of age(?2=7.8164 P

Objective To analyze risk factors for soft-tissue defects after surgery on leg trauma,to discuss methods for prevention of soft-tissue defects and its treatment.Methods A retrospective analysis was conducted on 217 cases of soft-tissue defects with bone exposure and / or internal fixation exposure after surgery on leg trauma from January,1999 to December,2012.Soft-tissue defects with various flaps were used in 201 cases,including neurocutaneous flap(89 cases),random flap(21 cases),free flap(75 cases),cross-leg flap(16 cases),and by skin grafting in 16 cases.For the 117 internal plate-fixated fractures,96 removed the plate and 21 cases did not remove the plate.For the 13 intramedullary nail fixations,4 cases of intramedullary nails were removed,9 cases were not removed.For the 56 cases of external fixation of the fractures,39 patients had unadjusted external fixation,17 cases re-adjusted external fixations.Results Of the 217 cases of soft-tissue defect after surgery on legs,201 cases were conducted flap surgery.The flap was completely necrosis in one case,and partial distal necrosis were in 14 cases,of which 6 cases healed after changing the dressing,5 underwent debridement and skin grafting,3 cases underwent flap surgery again.In cases of fracture patients,177 cases healed within 1 year,delayed union 23 cases,nonunion eight cases.Nonunion healing after bone grafting and re-fixation surgery.In 9 cases of uncontrollable osteomyelitis,6 patients underwent bone removal and bone transport surgery,3 patients underwent amputation.Conclusion Soft-tissue defects after surgery on leg trauma is a serious complication whose prevalence is associated,in a certain degree,with incorrect surgical time and methods.It is crucial for early repair of soft-tissue defects by using various kinds of proper flaps whenever soft-tissue complication occurs.In patients with early stage internal fixation,flap surgery without internal fixation removing is feasible if little soft-tissue defect,little exposed internal fixation and mild infection,otherwise it is necessary to remove internal fixation and re-fix by external fixation before flap surgery.

Objective To investigate the effect of acupuncture at point Neiguan on mouse myocardial hypertrophy.Methods Thirty-sixty healthy C57BL6 mice were randomized into blank, model and treatment groups, 12 rats each. In the treatment group, an acupuncture needle was inserted into point Neiguan and retained for 15 min, once daily. After nine days of treatment, the ratios of cardiac weight/tibial length were compared between the groups. Left ventricular myocardial tissues were processed by Masson trichrome staining in every group of mice. The differences in myocardial fiber arrangement and collagen fiber distribution between the groups were observed under the ordinary optical microscope in 100 times of field of vision. Sarcomere structure, myofibril arrangement, collagen fibers and mitochondria in injured myocardial tissues were observed by transmission electron microscopy. Results Heart rate increased significantly in the model group and decreased significantly in the acupuncture group compared with the blank group. Cardiac weight and the ratios of cardiac weight/tibial length increased significantly in the model and acupuncture groups compared with the blank group (P<0.01) and decreased significantly in the acupuncture group compared with the model group (P<0.01). In the model group, myocardial tissues had compensatory hypertrophy with incontinuous status, and myocardial transverse striations had severe disorder/disruption, karyopyknosis appeared and cytoplasmic eosinophilic change became obvious in few of the rats. The results were better in the acupuncture group than in the model group. In the model group, part of myofibrils had focal fusion, interstitial collagen fibers proliferated and mitochondria had swelling and compensatory increase. The results were also better in the acupuncture group than in the model group.Conclusions Acupuncture at point Neiguan can reduce the production of collagen fibers and mitochondria, improve the arrangement of sarcomere structure and delay the progression of myocardial hypertrophy.

Animals ; Aortitis ; pathology ; Biopsy ; Dendritic Cells ; pathology ; Diagnosis, Differential ; Giant Cell Arteritis ; drug therapy ; etiology ; metabolism ; pathology ; Glucocorticoids ; therapeutic use ; Humans ; Interleukin-12 ; metabolism ; Oxidative Stress ; Polymyalgia Rheumatica ; pathology ; Temporal Arteries ; pathology