Objective To evaluate the efficacy of α2 adrenergic agonists for the prevention of postoperative adverse cardiac events in patients with coronary disease.Methods MEDLINE,EMBASE,CINHAL,Web of Science,CBM and CNKI were searched to identify all randomized controlled trials on the efficacy of α2 adrenergic agonists for the prevention of postoperative cardiac complications following operation performed under general anesthesia in patients with coronary artery disease.The incidence of myocardial ischemia,myocardial infarction,bradycardia and hypotension were evaluated.Meta-analysis was conducted using the RevMan 5.1 software.Results Fifteen trials included 9 high-quality trials,4 medium-quality trials and 2 low-quality trials.A total of 3422 patients were included in this meta-analysis.1790 patients received α2 adrenergic agonists (clonidine and dexmedetomidine) and 1632 patients received placebo; 724 patients underwent non-cardiac surgery and 2698 patients underwent cardiac surgery.Meta-analysis indicated that α2 adrenergic agonists reduced incidence of myocardial infarction following non-cardiac surgery and myocardial ischemia following non-cardiac surgery and cardiac surgery.Alpha-2 adrenergic agonists significantly increased the incidence of postoperative bradycardia.Conclusion Alpha-2 adrenergic agonists can decrease postoperative cardiac adverse events in patients with coronary disease,but can induce bradycardia,and the efficacy of clonidine is consistent with that of dexmedetomidine.

Objective To analyze the causes of infection after cesarean section.Methods 80 patients having infection after cesarean section from Jan.2008 to Jan.2013 in our hospital were studied.The clinical data were retrospectively analyzed.The nosocomial infection-related factors were observed and related factors were ana-lyzed by Logistic regression analysis.Results 80 cases of maternal infection occurs after cesarean section.The highest rate of infection was urinary tract infection and respiratory infection, accounting for 43.75%and 31.25%respectively.We found the possible factors related to infection after cesarean section induding operative time, the number of invasive procedures, premature rupture of membranes, and the use of antibiotics.Conclusions Knowing the factors related to infection and improving the operative skills of gynecologists can help to reduce the rate of infection after cesarean section.

Adult ; Diagnosis, Differential ; Female ; Humans ; Keratins ; metabolism ; Lymphatic Metastasis ; Mucin-1 ; metabolism ; Rectal Neoplasms ; metabolism ; pathology ; surgery ; Rhabdoid Tumor ; metabolism ; pathology ; surgery ; Sarcoma ; metabolism ; pathology ; Synaptophysin ; metabolism ; Vimentin ; metabolism ; Young Adult

Objective To evaluate the role of mammalian target of rapamycin (mTOR ) in reduction of oxygen-glucose deprivation and restoration (OGD/R )-induced injury to isolated cardiomyocytes by hypoxic preconditioning (HPC) in neonatal rats .Methods Primary cardiomyocytes were obtained from neonatal Sprague-Dawley rats (1-3 days after birth ) ,and seeded in 96-well plates at the density of 1 × 105 cells/ml (200μl/well ) . The cells were randomly divided into 6 groups ( n=6 each ) using a random number table:control group (group C) ,rapamycin group (group R) ,group OGD/R ,rapamycin+OGD/R group (group R+OGD/R);group HPC+OGD/R ,and rapamycin+HPC+OGD/R group (group R+HPC+OGD/R) .Rapamycin (final concentration 20 nmol/L) was added to the culture media and the cells were then incubated for 1 h in group R .In R+OGD/R group ,rapamycin (final concentration 20 nmol/L ) was added to the culture media ,the cells were then incubated for 1 h ,and then OGD/R was performed .In HPC+OGD/R group ,OGD/R was performed immediately after HPC was completed .In R+HPC+OGD/R group ,rapamycin (final concentration 20 nmol/L) was added to the culture media ,the cells were then incubated for 1 h , and then HPC and OGD/R were performed . All the cells were subjected to OGD for 2 h followed by restoration of O2-glucose supply for 3 h to induce OGD/R .HPC was induced by 3 cycles of 10 min hypoxia followed by 30 min reoxygenation .The cell viability (using MTT assay ) and lactic dehydrogenase (LDH) activity in the culture medium were determined .Results Compared with group C ,the cell viability was significantly decreased , and LDH activities in the culture medium were increased in OGD/R , R+OGD/R ,HPC+OGD/R and R+ HPC+OGD/R groups ( P<0.05 ) ,while no significant change was found in the cell viability and LDH activities in R group ( P>0.05) .The cell viability was significantly higher ,and LDH activity in the culture medium were lower in HPC+OGD/R group than in OGD/R group ,and in R+HPC+OGD/R group than in HPC + OGD/R group ( P< 0.05 ) .Conclusion mTOR is involved in HPC-induced attenuation of OGD/R injury to isolated cardiomyocytes in neonatal rats .

Objective To evaluate the efficacy of different doses of glucocorticoid for prevention of postoperative complications in patients undergoing coronary artery bypass grafting (CABG).Methods We searched PubMed,EMBASE,Highwire,CENTREN and its affiliated clinical trial registration data center,Chinese Biomedical Database,and CNKI from 2000 to 2010 for randomized controlled trials involving the efficacy of different doses of glucocorticoid for prevention of postoperative complications in patients undergoing CABG.The quality of the studies was evaluated by the method recommended by Cochrane Collaboration.Evaluation indexes included development of fibrillation,requirement for insulin treatment because of hyperglycosemia,infection,and death (during stay in hospital or within 30 days after discharge from hospital) after operation and mechanical ventilation time.Meta-analysis was conducted using the RevMan 5.1 software.Results Twenty-one randomized controlled trials involving 1737 patients were included in our meta-analysis.Different doses of glucocorticoid decreased the risk of fibrillation,and did not increase the risk of various causes-induced infection and death.Moderate and large doses of glucocorticoid increased the risk of requirement for insulin treatment because of hyperglucosemia.Large dose of glucocorticoid resulted in prolongation of ventilation time.Conclusion Different doses of glucocorticoid can decrease the development of postoperative fibrillation without increasing the risk of infection and death,moderate and large doses of glucocorticoid increase the risk of requirement for insulin treatment because of hyperglucosemia and large dose of glucocorticoid increases the risk of prolonged ventilation time in patients undergoing CABG.

Objective To estimate blood lead level of children in Jinchang city of Gansu province.Methods According to relevant request,256 children(male 133,female 123) aged 2-7 years from some kindergartens in Jinchang city were randornly selected from Oct. 2004 to Jun. 2005. Blood lead level was measured by atom-absorbing graphiteingle method.Results The average blood lead level of 256 children was(126.30?52.98)?g/L.The lowest blood lead level was 28.3 ?g/L while the highest was 268.0 ?g/L.And 160 children(62.54%) were found with a blood lead level ≥100 ?g/L(the diagnostic level of lead poisoning in children).The blood lead level became higher with the increase of children′s age,as groups aged 2-3 years group were lower than aged 5-6 years and 6-7 years groups,of which the differenes had statistical significance(P0.05).Conclusion Blood lead levels of children in Jinchang city and prevalence of lead poisoning are both relatively higher,to which enough attention shall be paid.

Xylan from sugar cane bagasse can be cross linked by 1,4 butanedioldiglycidylether with dye Cibacron blue 3GA to form an insoluble dye solid This substrate was stable from pH4 to pH8 at 50℃ for 24h or 100℃ for 30min It is easy and sensitive to use this dyed xylan from sugar cane bagasse in measuring xylanase activity and screening xylanase producing microorganisms on agar plate

The chemical constituents from the fruiting bodies of Lyophyllum decastes (Fr.) Singer were studied in this paper. Thirteen compounds were isolated and purified by column chromatographies on silica gel and Sephadex LH-20. Their structures were identified by MS and NMR data analysis as adenosine (1), 2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxyheneicosanoylamino]-8-octadecene-1, 3, 4-triol (2), (2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxypentacosanoylamino]-8-octadecene-1, 3, 4-triol (3), nicotinic acid (4), (4E, 8E) -2-N-2-hydroxytetracosanoyl-1-O-beta-D-glycopyranosyl-9-methyl-4, 8-sphingadienine (5), D-mannitol (6), ergosteryl-3-O-beta-D-glucopyranoside (7), tuberoside (8), (2R, 3S, 4S, 8E)-2-[(2'R)-2-hydroxybehenoylamino]-8-octadecene-1, 3, 4-triol (9),(2R, 3S, 4S, 8E)-2-[(2'R) -2-hydroxytricosanoylamino] -8-octadecene-1, 3, 4-triol (10), (22E, 24R)-ergosta-7, 22-dien-3beta, 5alpha, 6beta-triol (11), (22E, 24R)-ergosta-5, 7, 22-trien-3beta-ol (12), and 5alpha, 8alpha-epidiory-(22E, 24R)-ergosta-6, 22-dien-3beta-ol (13), respectively. All the above compounds are first obtained from the mushroom and compounds 2-10 are reported to be obtained from the Lyophyllum for the first time.
Agaricales ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Fruit ; chemistry

To study the effect of Fuzheng Huayu recipe (FZHY) on five types of isozymes of cytochrome P450 (CYP450) of normal and liver fibrosis rats by using the cocktail probe method. Dimethylnitrosamine ( DMN) was injected to induce the liver fibrosis model. After the tail vein injection with Cocktail probe solutions prepared with five CYP450s probe substrates (phenacetin-CYP1A2, omeprazole-CYP2C9, tolbutamide-CYP2C19, dextromethorphan-CYP2D6, midazolam-CYP3A4), the plasma concentrations of the five probe substrates were determined by LC-MS/MS, and the pharmacokinetic parameters were calculated by PK solutions 2. After the oral administration with FZHY, normal rats given phenacetin, omeprazole, tolbutamide and dextromethorphan showed increase in AUC(0-t) and decrease in CL to varying degrees, indicating that FZHY obviously inhibited the activities of CYP1A2, CYP2C9, CYP2C19 and CYP2D6 in normal rats, but with no obvious effect on the activity of CYP3A4. After the oral administration with FZHY, liver fibrosis rats treated with CYP2C9 showed the significant increase in AUC(0-t) and significant decrease in Vd, hut with no obvious changes in the pharmacokinetic parameters of other four types of prove substances, suggesting that FZHY could significantly inhibit the activity of CYP2C9 in rats but had no effect on the activities of CYP1A2, CYP2C19, CYP2D6 and CYP3A4. The changes in the activity of CYP450 isozymes in liver fibrosis rats may be the reason for FZHY's different effects on CYP450 isozymes in normal and liver fibrosis rats.
Animals ; Cytochrome P-450 Enzyme System ; genetics ; metabolism ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; pharmacokinetics ; Humans ; Isoenzymes ; genetics ; metabolism ; Liver Cirrhosis ; drug therapy ; enzymology ; genetics ; Male ; Mass Spectrometry ; Rats ; Rats, Wistar

The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The content of benzyl isothiocyanate (BITC) which as the enzymatic hydrolysis product of benzyl glucosinolate through thioglucosidase was determined by HPLC. The chromatography condition was as follows: Kaseisorb LC ODS 2000 (4.6 mm x 150 mm, 5 min) column with the mobile phase of acetonitrile(A)-water( B) under gradient elution (0-5 min, 3%-8% A; 5-9 min, 8%-48% A; 9-23 min, 48%-62% A; 23-28 min, 62%-99% A); the flow rate was 1.0 mL x min(-1) with 10 microL injection volume; detection wavelength was 246 nm and temperature of column was 40 degrees C. The content of benzyl glucosinolate was in the range of 10.76-17.91 g x L(-1). The method is simple, accurate and good reproducibility which can be used for the determination of benzyl glucosinolate in Lepidium meyenii, effectively.
Chromatography, High Pressure Liquid ; methods ; Glucosinolates ; analysis ; Lepidium ; chemistry ; Plant Extracts ; analysis