Objective:To detect the existence of expression of human augmenter of liver regeneration(hALR) in HepG2 cells,and to observe proliferation of HepG2 cells after neutralizing hALR with anti-hALR McAb.Methods:the expression of hALR in HepG2 cells was observed immunocytochemistry and reverse transcriptive PCR(RT-PCR).Proliferation of HepG2 cells after neutralization was detected by ~3?H-TdR incorporation approach.Results:① hALR was expressed by HepG2 cells.② Anti-hALR McAb inhibited partially the autonomous growth of HepG2 cells.Conclusion:Anti-hALR McAb inhibit the autonomous growth of hepatoma cells partially;moreover,hALR maintain the autonomous growth of hepatoma cells in vitro through autocrine mechanism.

Objective:To study the clinical characteristics and treatment of thrombotic microangiopathy(TMA),to improve recognition of TMA.Method:Types,clinical and laboratory characteristics,treatment and prognoses of 12 patients with thrombotic microangiopathy admitted to our hospital between October 2004 and December 2007 were analyzed retrospective1y.Result:The clinical manifestations were characterized by microangiopathic hemolytic anemia(12/12),thrombocytopenia(12/12),elevated serum LDH value(12/12),and renal lesion(12/12),fever(5/12),and neurological abnormalities or mental disorders(7/12).3 patients were treated by plasma exchange therapy.1 patient fully recovered,4 patients took a turn for the better,and 7 patients died.Conclusion:TMA is a kind of severe acute syndrome with complicated pathenogenesis and high mortality.Management should depend on the type of TMA in order to improve curative efficacy and reduce mortality.

Adult ; Aggressive Periodontitis ; drug therapy ; therapy ; Amoxicillin ; therapeutic use ; Anti-Bacterial Agents ; therapeutic use ; Anti-Infective Agents ; therapeutic use ; Combined Modality Therapy ; Dental Scaling ; Denture, Partial, Fixed ; Humans ; Male ; Metronidazole ; therapeutic use ; Periodontal Abscess ; drug therapy ; therapy ; Root Canal Therapy ; Tooth Extraction ; Toothbrushing

Objective To establish an aortic transplantation model in the rat. Methods A thoracic aorta to abdominal aorta interposition transplant model in the rat was established. The male Lewis rats were used as donors and the female Brown Norway(BN) rats were used as recipients.Intercepted the thoracic aorta of lewis rats about one and a half centimeter. Transplanted it on the abdominal aorta of BN rats. The activity and weight change of BN rats were observed everyday until 1 week after transplantation. Then observed these index one time a week. The transplanted aortas were harvested at 8 weeks after transplantation. The intimal thickening were observed by pathological. The expression of CD3,CD68 and α-actin on transplanted aorta were observed by immunohistochemistry. Resuts All operations were finished within 2 hours. No recipients died during operation. All recipients could survival more than 8 weeks. The symptoms of bowing back, hair shedding and weight loss was appeared after transplantation. The weight of the rats were upturn at 4 or 5 days after transplantation. About 1 week after transplantation, all situations of the rats were recovery to the lever before transplantation. 8 weeks after transplantation the intimal thickening of the transplanted aortas were observed obviously by pathological. And the expressions of CD3, CD68 and α-actin on aortic allograft were observed. Conclusion The intimal thickening and the expressions of CD3, CD68 and α-actin on aortic allograft were typical expressions of chronic rejection. So this aortic transplantation model is feasible and reliable for studying chronic rejection.

Objective To determine the effects of down-regulating serine/threonine/tyrosine kinase 1 (STYK1) on the proliferation,apoptosis and invasion and on MEK/ERK and PI3K/AKT signaling pathways in human colorectal cancer cell line HCT-15.Methods The expression of STYK1 protein was downregulated by RNA interference technique in HCT-15 cells.Then,the STYK1 protein expression was detected by Western blotting.CCK-8 assay was used to measure the effect of STYK1 down-regulation on the proliferation of the cells,flow cytometry was employed to detect the cell apoptosis,and Transwell chamber assay was adopted for cell invasion ability.The expression levels of p-ERK1/2 and p-AKT were detected by Western blotting.Results Compared with the siRNA NC group,STYK1 down-regulation significantly inhibited the proliferation (P ＜ 0.01) and invasion (P ＜ 0.01),induced cell apoptosis (P ＜ 0.01),and suppressed the expression levels of p-ERK1/2 and p-AKT in the HCT cells transfected with STYK1 siRNA (P ＜0.01).Conclusion STYK1 down-regulation inhibits the proliferation and invasion and induces the apoptosis in colorectal cancer cells,which may be related to its inhibition on the MEK/ERK and PI3K/AKT signaling pathways.

Rational drug-use is an extremely important component part in morden medical and health work. And irrational drug-use will aggravate drug misadventure, increase overpreseribing, waste medicinal resources and harm the reputation of medical workers. The tendency of polypharmacy just for more hospital income, regardless of drug-related adverse effects, comes to be a serious problem and hard to control in recent years. No perfect management system and lack of information may be the major factors of the problem. In order to overcome the irrational drug-use characterized by polypharmacy, we should learn something from the Diagnosis Related Groups/Prepayment System (DRGS/PPS). Now, under the cooperation of The Chinese Pharmacological Society ,The Chinese Pharmaceutical Association and The Public Health Ministry of PLA, a Diagnosis Related Rational Drug-use Management System and a Computerized/Telecommunication Based Dynamic Knowledge Bank are able to be developed. We consider that it will contribute to the modernization of medical and health work in China in the near future.

The significant changes in morphology and nitric oxide synthase (NOS) activity in cultured human aortic endothelial cells (HAEC) were observed when these cells were exposed to LPS, IL-1? and IFN-?. NOS activity increased at 6h of treatment, the time point that HAEC began to change and elongate. The cell shape became fibroblast like and the length to width ratio of the cells increased 2 times of that of the control at 20h treatment, the time point that NOS activity returned to control level.

OBJECTIVE:To establish a HPLC method for determination of prodatin in Polygonum cuspidatum injection.M_ETHODS:The analytical column was Hypersil ODS column(100mm?2.1mm,5?m).The mobile phase consisted of methanol-water(25∶75).The flow rate was 1.0ml/min.The UV detection wavelength was 290nm.RESULTS:The linear range was 0.145～2.32?g/ml(r=0.9 999).The average recovery of prodatin was 98.8%(RSD=1.15%).CONCLUSION:The method is convenient,accurate and could be used for quality control in the production of Polygonum cuspidatum injection.

To evaluate the clinical effects of metronidazole-doxycycline gel for treatment of periodontitis, 18 adult patients with periodonti-tis, who had at least 4 mm of probing depth (PD) on the symmetric quadrant, were selected to participate in a randomised study with split-mouth design. Patients of the experimental group were given with metronidazole-doxycycline gel locally once a day for 7 days,while those of the control group were given with metronidazoce stilus. PD, PLI(plaque index), GI(gingival index), BI(bleeding index) were examined on days 0 and 7 of treatment. The results showed that all clinical parametres of the experimental group were better than those of the control group . Therefore, metronidazole-doxycycline gel is effective in the treatment of periodontitis.

Mesenchymal stem cell(MSC) is a kind of tissue stem cell having a characteristics of high self-renewal and multipotency. It is tended to be separated in vitro and play an important role in hematopoietic stem cell transplantation and transplantation of other systems. This article described mesenchymal stem cell's function and mechanism on supporting hematopoiesis, enhancing implantation,adjusting immunity and alleviating graft versus host disease (GVHD) in transplantation and also give some advices and experties about its further application.