Brain Neoplasms ; mortality ; secondary ; Ethmoid Sinus ; pathology ; Humans ; Male ; Middle Aged ; Nasal Cavity ; pathology ; Nose Neoplasms ; mortality ; pathology ; Paranasal Sinus Neoplasms ; mortality ; pathology

ObjectiveTo investigate the effects of infrared radiation and magnetic fields on the synovitis of rabbit with experimental knee osteoarthritis (OA).MethodsTwenty-four New Zealand grown rabbits were duplicated for OA model of the knee by extended fixation technique, and after 6 weeks, all rabbits were unchained from fixation. The rabbits were randomly divided into four groups: control group (no treatment), infrared group (treated with infrared radiation ), magnet-therapy group (treated with magnetic fields ) and the combined therapy group (treated with infrared radiation and magnetic fields). At the ends of the first, second and third week after treatment, 2 rabbits in each group were taken to measure the general change and histopathology of their synovium.ResultsCompared with other groups, the severity of synovitis (include the synovium line cells proliferation, the invading of granulation and blood vessels in the underlayer of synovium, the infiltration of inflammatory cells) declined significantly in combined therapy group. Scores of Ayral's index of combined group were significantly lower than other groups ( P<0.05), and there was no significant difference between infrared group and magnet-therapy group ( P>0.05).ConclusionThe combination of infrared radiation and magnetic fields can efficiently suppress the synovitis of OA and alleviate the tissue's destructions.

Objective To observe the effect of low arsenic sub-chronic exposure on blood routine test index in rabbits to pave a way for screening early injury of the low arsenic exposure. Methods Twelve healthy male rabbits were randomly divided into four groups. They were administrated with As at the concentration of 0(control), 10, 50 and 250 μg/L in the drinking water. Blood samples were collected from the vein of the ear edge in 8 weeks, and blood test routine including leukocyte (WBC), lymphocyte (LYM), lymphocyte percentage (LYM%), neutrophil (GRA), neutrophil percentage (GRA%), monocyte (MON), monocyte percentage (MON%), red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT), mean corpuscular volume (MCV), mean corpuscular hemoglobin content (MCH), mean corpuscular hemoglobin concentration(MCHC), RDW, platelets(PLT), mean platelet volume(MPV), platelet hematocrit(PCT) and platelet distribution width (PDW), were detected by the ABX-60 hemocyte analyzer. Results Compared with the control group, the WBC, GRA and GRA% increased in 0, 50 and 250 μg/L groups, but there was no significance(P > 0.05). PLT and MPV had a statistical significance in 4 groups(F = 4.07,4.20, all P < 0.05). Compared with the control group[(292.00±16.97)×109/L, (7.10±0.99)fL], PLT decreased in the 250 μg/L group [(221.33±22.50)×109/L] and MPV decreased in the 50μg/L group [(5.57±0.46)fL] significantly (P < 0.05). The other index didn't change obviously. Conclusions Sub-chronic low level arsenic exposure may lead to the change in the blood system. The blood routine test may be considered for early injury of the arsenic poisoning.

Objective To observe the sub-chronic effects of low doses of arsenic poisoning in rabbits exposed to different periods on some of the serum enzymes and biochemical indicators, and to provide the basis for screening of meaningful hematologic indicators for early diagnosis of arsenic poisoning. Methods Twelve adult rabbits,weighing 2.0 - 3.5 kg, were randomly divided into four groups, 3 in each group, and they were fed with drinking water containing sodium arsenite 0(control),0.01,0.05,0.25 mg/L, respectively. Serum alanine aminotransferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), γ-glutamyl transacylase (y-GT), total protein(TP), albumin(ALB), globulin(GLP), and ALB/GLP of rabbit were measured by SYSMEX-180 automated biochemistry analyzer after 8 weeks and 12 weeks exposure. Results The results showed that ALT in 0.05 mg/Lgroup of 12 week[(60.00 ± 4.14)U/L]increased significantly compared with the control[(41.50 ± 2.12)U/L, P ＜0.05];AST in 0.25 mg/L group of 8 week and 12 week[(46.50 ± 3.21 ), (52.33 ± 3.81 )U/L]increased significantly compared with the control[(21.33 ± 3.53), (29.50 ± 3.23 )U/L, all P ＜ 0.05];ALP in 0.05 mg/L and 0.25 mg/L group of 12 week [(78.68 ± 4.85 ), ( 103.00 ± 7.83 ) U / L]increased significantly compared with the control [(45.50 ± 5.50)U/L, all P ＜ 0.05];γ-GT in 0.05 mg/L group of 12 week[(19.33 ± 7.50)U/L]increased significantly compared with the contro1[(8.50 ± 3.53)U/L, P＜ 0.05]. TP, ALB, GLP, ALB/GLP of different groups of 8 week and 12 week were not significantly different statistically(F= 0.77,0.02,0.16,3.14 and 0.51,0.29,0.41,0.52, all P ＞ 0.05). Conclusions Zero point zero five mg/L and higher doses of sub-chronic arsenic exposure has some major damage to the liver. Compared with other serum enzymes and the biochemical indexes, serum AST is a early sensitive indicator of liver injury of the arsenic poisoning.

AIM: To detect unknown CD44 variants(CD44v) in nasopharyngeal cancer by using reverse transcription-polymerase chain reaction(RT-PCR) to analyze the expression of cell adhesion protein CD44 gene in nasopharyngeal cancer tissue and cell lines.METHODS: Specific primers at up start code,down terminal code of CD44 and primers at the middle,splicing points of variable splicing exon v10 of CD44 were designed.cDNA of nasopharyngeal cancer tissues,5-8F and HNE1 cell lines were analyzed by RT-PCR.Products of RT-PCR were sequenced and further analyzed by bioinformatics.RESULTS: The new CD44v sequence possessed 1634 bp with a completed open reading frame.The start code was at 12 bp site and terminal code at 1301bp site.It was predicted to code 429 amino acids,and only variable splicing exon 10 existed in the flexible region.It was given an accessible number EF581837 by GenBank.CONCLUSION: A new CD44 variant predicted to code 429 amino acids exists in the studied nasopharyngeal cancer tissues and cell lines.

OBJECTIVETo compare the tissue formation and the content of polysaccharide between the wild Dendrobium candidum and the cultured ones and to find any existed differences.

METHODBare-handed microtomy and photomicrography; The content of polysaccharide is determined by phenol-sulphuric acid method.

RESULT AND CONCLUSIONThere are no marked noticeable differences between the wild D. candidum and the cultured ones in terms of the tissure formation and the content of polysaccharide.

Dendrobium ; anatomy & histology ; chemistry ; growth & development ; Plant Stems ; anatomy & histology ; chemistry ; growth & development ; Plants, Medicinal ; anatomy & histology ; chemistry ; growth & development ; Polysaccharides ; analysis ; Tissue Culture Techniques

Objetive: To investigate whether apoptosis of SGC7901 cells can be induced by the expression of the recombinant gene of anti-HER2 ScFv/tBid. Methods: The recombinant anti-HER2 ScFv/tBid gene was cloned into vector pCMV and the recombinant plasmid was transfected into SGC7901 cells. The gene expression was detected by RT-PCR and immunofluorescent staining. Cell counting was carried out to show the effect of the gene transfection on cell growth. At the same time, significant apoptotic peak was detected by flow cytometry in recombinant anti-HER2 ScFv/tBid gene transfected cells. Results: The fusion protein of anti-HER2 ScFv/tBid was observed in the cytoplasm of transfected SGC7901 cells. The transfected cells displayed typical cell growth inhibition and apoptosis. Conclusion: Fusion protein of anti-HER2 ScFv/tBid can induce apoptosis of SGC7901.

Two short interfering RNAs (siRNA-RdRp1286, siRNA-RdRp1441) and one short interfering RNA (siRNA-OCP117), targeted to the RNA dependent RNA polymerase (RdRp) gene and outer capsid protein (OCP) gene of Grass carp reovirus (GCRV) respectively, were chemically synthesized and transfected into the CIK cells by lipofectamine 2000. 6 hours after transfection, the transfected CIK cells were challenged with GCRV. The culture media were collected at 48h post challenge and the virus was titrated in microculture system to evaluate the inhibition effect on GCRV replication mediated by siRNAs. Referring to the mRNA level of housekeeping gene beta-actin, RT-PCR was applied to detect the level of GCRV mRNA in transfected and challenged CIK cells. The results showed that the viral titer (lgTCID50/0. 1mL) in siRNA-RdRp1286, siRNA-RdRp1441 and siRNA-OCP117 transfected CIK cells were 4.41 +/- 0.16, 3.83 +/- 0.44 and 1.94 +/- 0.42 respectively, which were significantly lower than that in virus infection positive control (7.92 +/- 0.52) (P < 0.01). No significant change in viral titer was observed in the group transfected with siRNA negative control after challenged with GCRV (7.50 +/- 0.17, P > 0.05). Compared with the mRNA transcriptional level of beta-actin gene in virus infection positive control, the mRNA levels of GCRV in siRNA-RdRpl 286, siRNA-RdRp1 441 and siRNA-OCP117 transfected CIK cells were reduced significantly and the inhibition rate reached to (82.08 +/- 2.15)%, (89.19 +/- 1.14).% and (92.62 +/- 0.17)%, respectively. The mRNA level of GCRV in the siRNA negative control group had no noticeable change (P > 0 05).
Animals ; Carps ; virology ; Cells, Cultured ; RNA, Small Interfering ; chemical synthesis ; chemistry ; pharmacology ; Reoviridae ; drug effects ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Virus Replication ; drug effects

Objective: To evaluate the long-term prognosis of coronary artery disease (CAD) patients undergoing percutaneous coronary intervention (PCI) by risk stratification with American College of Cardiology (ACC)/American Heart Association (AHA) classification of coronary lesions. Methods: Data used in this study derived from the I-LOVE-IT 2 trial. I-LOVE-IT 2 trial was a prospective, multicenter, randomized, assessor-blinded, noninferiority study. A total of 1 255 patients in I-LOVE-IT 2 trial with only one lesion and underwent biodegradable polymer drug-eluting stent implantation were included and grouped according to ACC/AHA classification of coronary lesions, namely type A/B1 lesion group (n=184), type B2 lesion group (n=457) and type C lesion group (n=614). The primary endpoint was 48-month patient-oriented composite endpoint (PoCE), a composite of all-cause mortality, all myocardial infarction, stroke, and/or any revascularization. The secondary endpoints were target lesion failure (TLF), components of PoCE, major bleeding (bleeding academic research consortium(BARC) type 3-5) and definite/probable stent thrombosis within 48 months. The incidences of endpoint events were compared in the three groups. The multivariable Cox hazard ratio model was used to analyze the independent predictors of PoCE and TLF at 48 months. Results: Incidences of PoCE at 48 months were significantly higher in patients with type C lesion compared with patients with type A/B1 (24.43%(150/614) vs. 14.13%(26/184), P<0.05) or B2 lesion (24.43%(150/614) vs. 15.97%(73/457), P<0.05). The multivariable Cox hazard ratio model showed that the type C lesion were the independent predictors of 48-month PoCE (HR=1.59, 95%CI 1.21-2.08, P<0.001) and TLF (HR=2.31, 95%CI 1.53-3.49, P<0.001). After multivariable adjustment, the HRs of PoCE for patients with type C lesion versus type A/B1 and type B2 were 1.91 (95%CI 1.25-2.92, P=0.003) and 1.64 (95%CI 1.23-2.20, P<0.001), respectively. Meanwhile, the HRs of TLF for patients with type C lesion versus type A/B1 and type B2 were 2.45 (95%CI 1.29-4.64, P=0.006) and 2.55 (95%CI 1.62-4.02, P=0.001), respectively. Conclusions: The ACC/AHA classification of coronary lesions has good discrimination with long-term outcomes for CAD patients undergoing PCI. The type C lesion is associated with a worse prognosis, enough attention should be paid in these patients during routine clinical management.
Cardiovascular Agents ; Coronary Artery Disease ; Drug-Eluting Stents ; Humans ; Percutaneous Coronary Intervention ; Prognosis ; Prospective Studies ; Risk Assessment ; Risk Factors ; Sirolimus ; Treatment Outcome

BACKGROUND: Acute kidney injury following percutaneous coronary intervention (PCI) is associated with a worse outcome. However, the risk factors and outcomes of acute kidney injury (AKI) in patients after intracoronary stent implantation are still unknown. METHODS: A retrospective case control study was done in 325 patients who underwent intracoronary stent implantation from January 2010 to March 2011 at the Drum Tower Hospital of Nanjing University School of Medicine. Those were excluded from the study if they had incomplete clinical data. The patients were divided into a normal group and a AKI group according to the standard of post-operation day 7 to identify AKI. The parameters of the patients included: 1) pre-operative ones: age, gender, hypertension, diabetes mellitus, cerebrovascular disease, left ventricular insufficiency, peripheral angiopathy, creatinine, urea nitrogen, estimated glomerular filtration rate (eGFR), hyperuricemia, proteinuria, emergency operation, hydration, medications (ACEI/ARBs, statins); 2) intraoperative ones: dose of contrast media, operative time, hypotension; and 3) postoperative one: hypotension. The parameters were analyzed with univariate analysis and multivariate logistical regression analysis. RESULTS: Of the 325 patients, 51(15.7％) developed AKI. Hospital day and in-hospital mortality were increased significantly in the AKI-group. Univariate analysis showed that age, pre-operative parameters (left ventricular insufficiency, peripheral angiopathy, creatinine, urea nitrogen, estimated glomerular filtration rate, hyperuricemia, proteinuria, hydration), emergency operation, intraoperative parameters (operative time, hypotension) and postoperative hypotension were significantly different. However, multivariate logistic regression analysis revealed that increased age (OR=0.253, 95％CI=0.088–0.727), pre-operative proteinuria (OR=5.351, 95％CI=2.128–13.459), pre-operative left ventricular insufficiency (OR=8.704, 95％CI=3.170–23.898), eGFR≤60 ml/min/1.73 m2 (OR=6.677, 95％CI=1.167–38.193), prolonged operative time, intraoperative hypotension (OR=25.245, 95％CI=1.001–1.034) were independent risk factors of AKI. CONCLUSIONS: AKI is a common complication and associated with ominous outcome following intracoronary stent implantation. Increased age, pre-operative proteinuria, pre-operative left ventricular insufficiency, pre-operative low estimated glomerular filtration rate, prolonged operative time, intraoperative hypotension were the significant risk factors of AKI.