Objective In order to study the relationship between the platelet activation sign:P-selectin(GMP 140 ) expression and human IgA nephropathy.Methods Expression of platelet membrane glucoprotein Ⅱb/Ⅲa(GP Ⅱb ,GP Ⅲa ) in blood for IgA nephropathy patients(n=46) was investigated by flow cytometry methods.Results In IgA nephropathy the up-regulated GMP 140 expression in blood was significantly higher than that in normal humans.Conclusions GMP 140 might play an important role in pathogenesis of IgA nephropahty,and the level of GMP 140 in blood might predict renal outcome in IgA nephropathy.

As a tumor suppressor, p53 is activated by numerous cellular and environmental signals, and plays a criticalrole in the cell cycle regulation, cell apoptosis and senenscence. The murine double minute (MDM)2 and double minute mu?rine 4 (MDMX) are two important regulators. MDMX is a p53 binding protein with strong sequence homology to MDM2, but lacks ubiquitin ligase activity, and which is unable to target p53 for proteasomal degradation. MDMX regulates p53 activity through its binding with p53 and its postranscriptional modification. MDMX in the closed and open structure binds to p53 to regulate its activity. As the main partner of MDMX, casein kinase 1 alpha (CK1α) disrupts the intramolecular binding in MD?MX in the cooperation to regulate p53 activity. The process of MDMX and CK1αin the regulation of p53 is multi-step and complicated. In this paper the mechanism of MDMX and CK1αin the regulation of p53 protein was reviewed.

A percutaneous visceral tumor puncture director is introduced in this paper, which can be used for needle biopsy and brush biopsy in kinds of visceral tumor. The clinical informations show that the application of the director can increase the positive ratio of puncture, and it has important clinical value. The director is safe, practical and easy to operate.
Biopsy, Needle ; instrumentation ; methods ; Equipment Design ; Humans ; Neoplasms ; pathology ; Sensitivity and Specificity

Adult ; Brain Abscess ; Cholesteatoma ; surgery ; Endoscopy ; Female ; Humans ; Maxillary Sinus ; surgery

Objective: To investigate the feasibility for reconstructing an aortic arch by a new integrated two-branched stent graft releasing in experimental canine thoracic aorta simulation system.
Methods: A new type of integrated two-branched stent graft was developed and placed in the canine thoracic aorta, the stent graft releasing in a simulated system was conducted under X-ray guidance to monitor the operating process and to explore the feasibility for invitro sent graft releasing.
Results: The new two-branched stent graft was successfully deployed in canine thoracic aorta simulation system. The releasing process was smooth, two small stent grafts were well landing, and all stent grafts were fully expanded and properly positioned.
Conclusion: Our new two-branched stent graft could successfully reconstruct the aortic arch in experimental canine. The thoracic aorta releasing system may better and truly simulate the whole process of endovascular aortic repairing, which provides a good foundation for further animal experiments.

Objective To observe the effect of Jisheng injection(JI)in preserving isolated heart of mice.Methods Langendorff' s isolated -perfused mouse heart mod el was established.The isolated hearts were preserved in modified Eu-ro -Collins solution(MECS)and MECS with JI added for 3h,7.5h and8.5h respectively.Cardiac functio n,coronary flow and myocardial water -volume (MWV)were observed after 3h ,7.5h and 8.5h of preservation,heart reactivatio n(HR)rate,coronary flow,MWV and time for HR were also observed.Results After 3h of preservation and 20min,30min or 40min of reperfusion,cardiac function and coronary flow in three M ECS +JI groups and especially in that of large dose were improved as compared with t hose in MECS group;MWV in large -dose and moderate -dose groups was obvi-ously lower than that in MECS group(P

Objective To evaluate the clinical efficacy and complications in the treatment of advance liver cancer under ultrasound guidance with percutaneous RFTI-1 TM-cold cycle RF tumor ablation apparatus produced by Nangjing TianMa high-tech Company limited. Methods 25 patients of advance liver cancer, including 8 cases of metastatic liver cancer, 17 of primary hepatic carcinoma, were treated with percutaneous RFA cool-tip electrode under Ultrasound guidance 1 to 2 times. Eight of the patients prior to RFA were treated with TACE of individually three times for each. The postoperative efficacy was evaluated by enhanced CT. Results 10 lesions were completely necrotized and the majority parts of another 15 lesions were also under necrosis. Follow-up of six months, all patients are still alive with marked improvement of life quality. Conclusion The short-term efficacy of percutaneous Ultrasound-guided RFA with cool-tip electrode for treating advance liver cancer is quite satisfied, worthy to be recommended.

OBJECTIVETo investigate the role of vascular endothelial growth factor (VEGF) in the pathogenesis of severe acute pancreatitis (SAP) in rats.

METHODSSixty-four male SD rats were randomly divided into control group and SAP group, and in the latter group, SAP was induced by retrograde injection of 5% sodium taurocholate in the pancreaticobiliary duct. The rats were sacrificed at 1, 3, 6 and 12 h after the operation, and the severity of pancreatitis was assessed according to histological scoring. The serum levels of VEGF were examined with enzyme-linked immunosorbent assay, and the expression of VEGF in the pancreatic tissues was measured by SP immunohistochemistry. Another 30 SD rats were randomized into the control group, SAP group and SAP+recombinant rat VEGF injection group, and the vascular permeability of the pancreatic microcirculation was determined by Evans Blue leakage test.

RESULTSAt each of the time points for measurement, both the serum VEGF level and scores of pancreatic tissue injury were significantly higher in SAP group than in the control group (P<0.05). Compared with the control group, the expressions of VEGF in the pancreatic tissues of SAP group were significantly up-regulated following the operation (P<0.05). The vascular permeability of the pancreatic microcirculation significantly increased after the onset of SAP, and injection of recombinant rat VEGF significantly increased the leakage rate of Evans Blue.

CONCLUSIONVEGF may play an important role in the pathogenesis of pancreatitis and in causing edema and hemorrhage in SAP, and the level of serum VEGF may reflect the severity of pancreatic injury.

Acute Disease ; Animals ; Biomarkers ; Capillary Permeability ; physiology ; Male ; Pancreatitis ; metabolism ; pathology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Vascular Endothelial Growth Factor A ; blood

In this study, the psbA-trnH sequence as DNA barcode was used to evaluate the accuracy and stability for identification pteridophyte medicinal material Pyrrosiae Foliumas from adulterants. Genomic DNA from 106 samples were extracted successfully. The Kimura 2-Parameter (K2P) distances and ML tree were calculated using software MEGA 6.0. The intra-specific genetic distances of 3 original plants were lower than inter-specific genetic distances of adulterants. The ML tree indicated that Pyrrosiae Folium can be distinguished from its adulterants obviously. Therefore, the psbA-trnH sequence as a barcode of the pteridophyte, can accurately and stably distinguish Pyrrosiae Folium from its adulterants.
Base Sequence ; DNA Barcoding, Taxonomic ; methods ; DNA, Ribosomal Spacer ; genetics ; Drug Contamination ; prevention & control ; Drugs, Chinese Herbal ; chemistry ; classification ; Ferns ; classification ; genetics ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; genetics ; Quality Control

Objective To investigate the dynamic distribution changes of fungi responsible for the deep infection and antifungal susceptibility to provide a basis for the empirical antifungal treatment.Methods Medical records were reviewed from cases suspectedof deep fungal infection at our hospital from January 1998 to December 2004.3122 isolates of 13 species were analyzed with SPSSll.0.Etest was used for the antifungal susceptibility test.Results Candida albicans was the most commonly isolated organism,while the prevalence of Candida albicans decreased(76.3% vs 66.8%,x~2=34.33,P