Aim To construct the methods of bacterial endotoxins test for Yu Jin injection. Methods Bacterial endotoxins test according to the addenda of 2000 Edition China Pharmacopoeia(second part). Result The backdrop can be avoided through diluting the preparation in 6 times. Conclusion The result shows that testing for bacterial endotoxin can instead of testing for pyrogen in matrine and sodium chloride injection.

Objective: To investigate the mechanism responsible for homoharringtonine (HHT), which contributes to imatinib (IM) sensitivity in the chronic myeloid leukemia (CML) cell line. Methods:We established cell lines from a patient with CML at the time of first diagnosis and relapse phase, and designated the cell lines as NPHA1 and NPHA2, respectively. Stable underexpressed EphB4 cells (NPHA2-EphB4-sh) were obtained. Leukemia cell lines were incubated with HHT. The activated signal proteins in cells were tested by Western blot. Results:EphB4 was overexpressed in IM-resistant NPHA2 compared with the NPHA1 cell line. However, the expression of EphB4 mRNA and protein were significantly decreased in knockdown NPHA2-EphB4-sh cells compared with the NPHA2 and NPHA1 (P<0.001) cell lines. NPHA2-EphB4-sh cells were sensitive to IM (IC50:0.93 mg/L), and NPHA2 showed IM re-sistance (IC50 : 5.45 mg/L) (P<0.001). However, co-stimulation with HHT+IM decreased IC50 of NPHA2 cells to 1.17 mg/L (P<0.001). Meanwhile, phospho-Rac1/cdc42 was significantly increased in NPHA2 cells compared with NPHA2-EphB4-sh (P<0.001). HHT blocked the expression of EphB4/RhoA. Conclusion: The overexpression of EphB4 contributed to IM resistance in CML line cells. EphB4/RhoA may be a new marker of IM resistance. HHT with IM yielded more treatment advantages than IM alone by blocking EphB4/RhoA pathways.

OBJECTIVETo observe the effect of sodium tanshinone II (A) sulfonate (STS) on Ang II -induced atrial fibroblast collagen synthesis and TGF-beta1 activation.

METHODAtrial fibroblasts of neonatal rats were cultured to determine the content of collagen protein. The original synthesis rate determined by the [3H]-proline incorporation method was taken as the index for myocardial fibrosis. The content of active TGF-beta1 and total TGF-beta1 in cell culture supernatants were tested and cultured by ELISA. The expression of thrombospondin-1 (TSP-1) was assessed by using Western blot.

RESULTAng II could significantly increase the content of atrial fibroblast collagen and the collagen synthesis rate, the TSP-1 expression and the concentration of active TGF-beta1, without any obvious change in total TGF-beta1. After the STS treatment, all of the indexes, apart from total TGF-beta1, were obviously down-regulated.

CONCLUSIONSTS could decrease the secretion of Ang II -induced atrial fibroblast collagen and the synthesis rate. Its mechanism is related to the inhibition of TSP-1/TGF-beta1 pathway.

Angiotensin II ; pharmacology ; Animals ; Collagen ; biosynthesis ; Fibroblasts ; cytology ; drug effects ; metabolism ; Gene Expression Regulation ; drug effects ; Heart Atria ; cytology ; Phenanthrenes ; pharmacology ; Rats ; Rats, Wistar ; Signal Transduction ; drug effects ; Thrombospondin 1 ; metabolism ; Transforming Growth Factor beta1 ; metabolism

Animals ; Animals, Newborn ; Apoptosis ; drug effects ; Cell Survival ; drug effects ; Cells, Cultured ; Cerebral Cortex ; cytology ; drug effects ; Dose-Response Relationship, Drug ; Neurons ; drug effects ; Nickel ; toxicity ; Rats ; Rats, Wistar

OBJECTIVE: To detect the serum level of a novel autoantibody, anti-tubulin-α-1C, in patients with systemic sclerosis (SSc) and to investigate its clinical significance. METHODS: Anti-tubulin-α-1C antibody levels were determined by enzyme-linked immunosorbent assay (ELISA) in 62 patients with SSc, 38 systemic lupus erythematosus (SLE), 24 primary Sjögren's syndrome (pSS) patients, and 30 healthy controls (HCs). Erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), immunoglobulin A(IgA), immunoglobulin M (IgM), immunoglobulin G (IgG), C3, C4, rheumatoid factor (RF), antinuclear antibody(ANA), anti-centromere antibodies(ACA), anticardiolipin (aCL), anti-dsDNA antibody, anti-Sm antibody, anti-RNP antibody, anti-Scl-70 antibody, anti-Ro52 antibody, anti-SSA antibody, anti-SSB antibody, centromere protein A(CENP-A), centromere protein B (CENP-B) were measured by standard laboratory techniques. Raynaud's phenomenon and modified Rodnan skin score(MRSS) were recorded to evaluate the disease status of SSc. Independent sample t test, Chi square test, Mann-Whitney U test, Spearman rank correlation were used for statistical analyses. RESULTS: The serum anti-tubulin-α-1C antibody concentration in SSc group was 81.24±34.38, the serum anti-tubulin-α-1C antibody concentration in SLE group was 87.84±38.52, the serum anti-tubulin-α-1C antibody concentration in pSS group was 59.79±25.24, and the serum anti-tubulin-α-1C antibody concentration in healthy group was 39.37±18.7. Multivariate analysis revealed that anti-tubulin-α-1C antibody levels were significantly increased in the SSc and SLE patients. The expression level of anti-tubulin-α-1C antibody in SSc was higher compared with the pSS group and the health control group (P < 0.01). Further analysis demonstrated that the elevated anti-tubulin-α-1C antibody were correlated with the SSc inflammation and disease activity markers ESR(r=0.313, P=0.019), The levels of anti-tubulin-α-1C antibody were also significantly correlated with MRSS(r=0.636, P < 0.01). The best cut-off value for the diagnose of SSc was 76.77 as mean+2SD value. The proportion of Raynaud's phenomenon was higher in the group of anti-tubulin-α-1C autoantibody-postive SSc patients than that in anti-tubulin-α-1C autoantibody negative group(71.4% vs. 37.5%, P=0.039). The proportions of anti-Scl-70 antibody, anti-CENP antibody and anti-cardiolipin antibody were higher in the group of anti-tubulin-α-1C autoantibody-postive SSc patients than in the anti-tubulin-α-1C autoantibody negative group (37.9% vs. 15.2%, 34.5% vs. 12.1%, 13.8 vs. 0, respectively, all P < 0.05). CONCLUSION Based on this explorative stu-dy, the level of anti-tubulin-α-1C antibody increased in the serum of the patients with SSc. There were correlations between anti-tubulin-α-1C autoantibody and clinical and laboratory indicators of the SSc patients. It may become a novel biomarker indicative of active SSc and could be applied in future clinical practice.
Antibodies, Antinuclear ; Autoantibodies ; Humans ; Lupus Erythematosus, Systemic ; Scleroderma, Systemic ; Sjogren's Syndrome

The extracting technology of salidroside, tyrosol, crenulatin and gallic acid from Rhodiolae Crenulatae Radix et Rhizoma was optimized. With extraction rate of salidroside, tyrosol, crenulatin and gallic acid as indexes, orthogonal test was used to evaluate effect of 4 factors on extracting technology, including concentration of solvent, the dosage of solvent, duration of extraction, and frequency of extraction. The results showed that, the best extracting technology was to extract in 70% alcohol with 8 times the weight of herbal medicine for 2 times, with 3 hours once. High extraction rate of salidroside, tyrosol, crenulatin and gallic acid were obtained with the present technology. The extracting technology was stable and feasible with high extraction rate of four compounds from Rhodiolae Crenulatae Radix et Rhizoma, it was suitable for industrial production.
Chemical Fractionation ; methods ; Chemistry, Pharmaceutical ; methods ; Coumarins ; isolation & purification ; Drugs, Chinese Herbal ; isolation & purification ; Gallic Acid ; isolation & purification ; Glucosides ; isolation & purification ; Phenols ; isolation & purification ; Phenylethyl Alcohol ; analogs & derivatives ; isolation & purification ; Rhizome ; chemistry ; Rhodiola ; chemistry

With low molecular weight chitosan and poloxamer 188 as the joint carriers, ginsenoside Rg3 solid dispersions were prepared by using the solvent evaporation method for an in vitro dissolution test. Subsequently, differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and X-ray diffraction (X-RD) were adopted for a phase analysis. The results showed that the 60 min in vitro cumulative dissolution rate of ginsenoside Rg3 solid dispersions prepared with low molecular weight chitosan and poloxamer 188 at the ratio of 2:1 exceeded 90%, and the drug was dispersed in carriers in an amorphous state. Therefore, ginsenoside Rg3 solid dispersions prepared with low molecular weight chitosan and poloxamer 188 could help significantly improve the drug dissolution, with a practical application value.
Chitosan ; chemistry ; Drug Compounding ; methods ; Ginsenosides ; chemistry ; Molecular Weight ; Poloxamer ; chemistry ; Solvents ; chemistry

Objective To analysis the clinical effects of biliary-pancreatic double stents in pancreatic cancer patients with obstructive jaundice.Methods From July 2008 to October 2011,a total of 60 patients with advanced pancreatic cancer were randomly divided into two groups to receive biliary-pancreatic double stents (n =28) or biliary stent only (n =32) according to the odd and even numbers of their admission date.Changes in liver function,abdominal pain,quality of life scores (QOL) were compared between two groups.Results The stents were placed successfully in 54 patients (90.0％),in which symptoms were relieved or gradually disappeared in all patients after the procedure.One week after stents placement,the serum total bilirubin decreased significantly from 164.32 ±45.16 μmol/L before ERCP to 63.25 ±27.06 μmol/L (P ＜ 0.05),other parameters including ALT,AST,AKP and r-GT were also decreased significantly compared with those of pre-ERCP (P ＜ 0.01),but there was no significant difference between the two groups (P ＞ 0.05).25 cases in double-stents group and 29 cases in single-stent group had varying degrees of pain relief at 7d after ERCP,but the overall pain relief rate and complete pain relief rate in double-stent group were significantly higher than those in single-stent group (92.0％ vs.55.2％; 64.0％ vs.34.5％,P＜0.05).At 7d and 14d after ERCP,Karnofsky QOL score were improved significantly in double-stent group (P ＜ 0.05).It was significantly better than single-stent group at 14d after ERCP (P ＜0.05).No death or other severe ERCP-related complications were observed.Conclusion Biliary-pancreatic stent placement for pancreatic cancer could significantly improve liver function and relieve obstructive pain.In the ways of alleviating pain and improving quality of life scores,it was better than ERCP biliary stent placement,especially for patients with pancreatic cancer combined obstructive pain.It indicated that biliary-pancreatic stent placement was better than simple biliary stent placement for advanced pancreatic head cancer patients with obstructive pain.

Objective To explore the relationship between the CHADS2 score and short-term prognosis in acute ischemic stroke patients with nonvalvular atrial fibrillation. Methods Consecutive ischemic stroke patients with nonvalvular atrial fibrillation who were hospitalized within 7 days after stroke were registered.Patients were divided into 3 groups on the basis of CHADS2 pre-stroke score (0 to 1,2,3to 6).And recovery was assessed by modified Rankin Scale (mRS) at 3 months follow-up (mRS ≤ 2reflected good prognosis,and mRS ≥ 5 implicated unfavorable outcome).After screening the risk factors affecting prognosis using univariate analysis,the relationship between CHADS2 score and prognosis was estimated using logistic regression model.Results Of 203 patients enrolled,the CHADS2 score of 0-1,2,3-6 were present in 72,53 and 78 respectively.Patients with the higher CHADS2 score had a higher initial NIHSS score (9.8,12.6,13.0,F =3.404,P =0.008 ),more likely to receive nosocomial pulmonary infection( 12.5％,34.0％,39.7％,x2 =14.643,P =0.001 ),negatively related to good prognosis (x2 =28.542,P =0.000 ) and positively related to unfavorable outcome ( x2 =23.575,P =0.000 ).Logistic regression model results suggested that CHADS2 score was an independent predictor of good prognosis and unfavorable outcome. Compared with CHADS2 score 3-6, CHADS2 score 0-1 was independently associated with good prognosis ( OR =5.018,95 ％ CI 2.055-12.560 ).And compared with CHADS2 score 0-1,CHADS2 score 3-6 was independently associated with unfavorable outcome ( OR =6.197,95％ CI1.670-22.996 ).Conclusions CHADS2 pre-stroke score appears to be useful in prediction of stroke outcome for patients with nonvalvular atrial fibrillation.After acute ischemic stroke,the patients with the lower CHADS2 score (0-1) are more likely to achieve good prognosis,inversely,the patients with the higher CHADS2 score (3-6) are more likely to achieve unfavorable outcome.

With the continuous increase in the incidence of diabetes mellitus in the world,the ocular complications are getting more and more attention.Diabetes mellitus can cause several complications,including diabetic retinopathy and diabetic cataract,as well as changes in the structure and micro-environment of ocular surface,which can further affect the composition and quality of tear fluid,even the stability of tear film.This review will provide a brief overview of ocular surface changes caused by diabetes mellitus,relevant detection methods and affecting factors.