Objective:To study interferon alpha (IFN-α) inhibition of proliferation and apoptosis induction of human brain vascular adventitial fibroblasts(HBVAFs)via IFI16.Methods:Cultured HBVAFs were treated with transfection IFI16 siRNA and/or IFN-α in vitro instantaneously.The protein and mRNA levels of IFI16,P53,P21 were measured by Western blot and Real-time PCR.MTT was used to detect the cell proliferation of the HBVAFs.Cell cycle and apoptosis were analyzed by flow cytometry.Results:IFN-α with terminal concentration of 2 000-5 000 kU/L induce significantly expression of IFI16 in HBVAFs,without any significant difference.Stimulated with 2 000 kU/L IFN-α up-regulated the expression of P53,P21 at protein and mRNA levels,and inhibited the cell proliferation and promote cells apoptosis in HBVAFs.Such effect was restrained by transfection with IFI16 siRNA into HBVAFs.Conclusion:IFN-α inhibits HBVAFs proliferation and induces apoptosis may partly relate to the increased IFI16 expression.

Objective To determine if nitric oxide(NO)is involved in the protective effect of propefolpretreatment(PP)against ischemia-reperfusion injury(I/R).Methods Eighteen male SD rats weighing 250-350 gwere randomly divided into 3 groups(n=6 each):A normal control;B I/R and C PP+I/R.The animals werekilled by a knock on the head.Hearts were immediately removed and passively perfused in a Langendorff apparatusat 37℃ with oxygenated(95% O_2,5% CO_2)Krebs-Hensleit(KH)solution at 90 cm H_20.In group B and C thehearts were subjected to 35 min global ischemia by suspension of perfusion followed by 120 min reperfusion.Ingroup C the hearts were perfused with KH solution containing 50 ?mol?L~(-1) propofol for 10 min followed by 10 minpropefol wash-out before I/R.At the end of reperfusion myocardial specimen was obtained from left ventricle andhomogenized for determination of the activities of total NOS(iNOS+cNOS)aand SOD and expression of iNOS andheme-oxygenase-1(HO-1)and content of NO,The relationship between the NO content and activity and/orexpression of these protein and enzyme were analyzed by correlation analysis.Myocardium was examined with lightand electron microscope.Results The myocardial NO content,tNOS activity and tSOD activity were significantlylower in group B than in group A and C and there was no significant difference in NO content,and activity of tNOSand tSOD between group A and C.The NO content was positively correlated with tNOS and negatively correlatedwith Mn-SOD aetivety and HO-1 expression.Microscopic examination showed severe cell injury or necrosis in groupB but little injury in group C.Conclusion Ischemia and reperfusion decrease activity of tNOS and SOD butincrease HO-1 expression resulting in decrease in NO content.Propofol pretreatment protects the heart from I/Rinjury through increase in NOS and antioxidases(Mn-SOD,HO-1).

Animals ; Burns ; drug therapy ; metabolism ; physiopathology ; Interleukin-18 ; genetics ; metabolism ; Lactulose ; therapeutic use ; Lipopolysaccharides ; blood ; Liver ; metabolism ; physiopathology ; Lung ; metabolism ; physiopathology ; Male ; Multiple Organ Failure ; prevention & control ; RNA, Messenger ; genetics ; metabolism ; Rats ; Rats, Wistar

Objective To observe the expression of pannexin1(PX1) in the dorsal horn of spinal cord in model ratwith neu-ropathipain afteselective ligation of sciatinerve branche.Method50 male SD ratwere randomly divided into 3 group,inclu-ding the control group(Wgroup ,n= 10) ,sham operation group(sham group ,n= 10) and sciatinerve branch selective injury group(SNI group ,n=30) .30 ratwere killed on postoperative 3 ,5 ,7 ,14 d and the lumbasegmenof the spinal cord wataken fodetecting the expression of PX1 by using Western blo.Othe20 ratwere killed on 7 d afteSNI and the expression of glial fibril-lary acidiprotein(GFAP) in the spinal cord wadetected with immunohistology .Among them ,10 ratin the SNI group were trea-ted with intrathecal intubation before operation and administrated with saline 20 μL ocarbenoxolone(CBX) 20 μL by intrathecal injection on postoperative 7 d fodetermining the expression of GFAP by the immunohistology .ResultThe expression of PX1 in the SNI group waincreased and enhanced with time ,which wasignificantly highethan thain the Wgroup and the sham group (P＜0 .05);the GFAP expression on 7 d in the SNI group waobviously increased compared with the Wgroup and the sham group(P＜0 .05);afteintrathecal injection of CBX ,the expression of GFAP wasignificantly decreased compared with thain the normal saline group(P＜0 .05) .No statistically significandifferencein the expression of PX1 and GFAP were found in the Wgroup and the sham group .Conclusion PX1 may be involved in the activation of astrocyte,prompting thaPX1 playan importanrole in the neuropathipain caused by the peripheral nervel injury .

Objective:To measure vertical axis length of humerus head in patients with proximal hu-meral fractures and to evaluate the use of structure screws in proximal humerus internal locking osteosyn-thesis system ( PHILOS) .Methods:From January 2007 to February 2014,117 patients with proximal hu-merus fracture were treated by PHILOS plate.Preoperatively, all the patients tookanteroposterior X-ray of shoulder, and the vertical axis length of humerus head were measured, and the use of structure screws in PHILOS plate was observed.Results: There were 40 male and 77 female patients; The vertical axis length of humerus head in male patients was (47.64 ±3.44) mm, and the rate of structure screw use was 52.5%;The vertical axis length of humerus head in female patients was (42.46 ±3.21) mm, and the rate of structure screw use was 32 .5%.The vertical axis length of humerus head and the rate of structure screw use had significant difference in the male and female groups (P<0.05).Conclusion:The rate of structure screw use was low in the treatment of proximal humerus fracture by PHILOS plate, especially for women.We should improve the design of plate according to the anatomical characteristics of Chinese.

Objective To investigate the effect of interferon alpha ( IFN-α) on apoptosis of vascular smooth muscle cells ( VSMCs) in rats and the related mechanism. Methods The cells were divided into three group:group A, group B and group C.Group A was transfected with nonspecific siRNA, group B was intervened with IFN-α and transfected with nonspecific siRNA, and group C was intervened with IFN-α and transfected with IFI204 siRNA. All the cells were cultured for 48 h. The expression of P204 mRNA was determined by semiquantitative reverse transcription polymerase chain reaction (RT-PCR).P204, RAS protein levels, and phosphorylation levels of RAF and ERK were analyzed by Western blotting. The cell apoptosis was analyzed by flow cytometry with Annexin-V FITC/PI method. Results As compared with group A, the expression of P204 mRNA and protein in group B was up-regulated (P<0.05), the cell apoptosis was increased (P<0.05), in the process of the above, the expression of RAS protein was decreased ( P<0.05) and the phosphorylation levels of RAF and ERK were dropped (P<0.05).In group C, the expression levels of P204 mRNA and protein were down-regulated (P<0.05), and cell apoptosis was decreased ( P<0.05) , the expression of RAS protein and the phosphorylation levels of RAF and ERK were increased ( P<0.05) . Conclusion P204 and RAS signal pathway participates in IFN-α regulation of apoptosis of VSMCs in rats.

Compared with that for botanical drugs and animal-derived drugs, the identification study for mineral traditional Chi-nese medicines is relatively weak. The traditional identification methods can’ t meet the quality control requirements of mineral tradi-tional Chinese medicines, and the application of modern analysis techniques are needed urgently in the systematic research of mineral traditional Chinese medicines. In the paper, the identification of traditional methods combined with some modern analysis techniques such as X-ray diffraction, near infrared spectroscopy and Raman spectroscopy for mineral traditional Chinese medicines was summarized and analyzed to provide basic idea and methods for the systematic identification construction of mineral traditional Chinese medicines.

The aim of this paper is to apply Raman spectroscopy technique to develop rapid quantitative models for five kinds of Traditional Chinese Medicine containing CaCO3. In the experiment, Raman spectras of 67 batch of sample including Otolithum Sciaenae, Galaxeae Os, Ophicalcitum, Calcite, Stalactite and their mixture which had different content of CaCO3 were collected, and the quantitative models were established by using an improved siPLS to optimize the characteristic spectral bands and using the CaCO3 contents which were measured by EDTA titration method as references. Compared with the results by EDTA titration, the established quantitative model for CaCO, content showed a prediction result that the average relative deviation of the prediction results is 2. 71% and the average recovery rate was 100.46%, when the content is between 0.465 4-0.999 7, and when the characteristic spectral bands of 1 290-1 280, 730-714, 700-690, 660-650, 465-460, 455-445, 405-385 cm(-1) had been optimized. The result also showed that the model using Raman spectroscopy and based on an improved siPLS can get a rapid determination for contents of 5 kinds of Traditional Chinese Medicine containing CaCO3.
Calcium Carbonate ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Least-Squares Analysis ; Models, Statistical ; Plants, Medicinal ; chemistry ; Spectrum Analysis, Raman ; methods

OBJECTIVETo investigate risk factors associated with acute tumor lysis syndrome (ATLS) in children with B-cell lymphoma and to explore feasible means for the prophylaxis and treatment.

METHODData from 18 children with ATLS in B-cell lymphoma were collected to assess their tumor burden at diagnosis and before chemotherapy. Evaluation was performed at the 8th day, 3 month, and the end of chemotherapy and follow up. The incidence of ATLS in B-cell lymphoma, and the relationship between the incidence of ATLS and whether the kidney was involved and large tumor burden were analyzed respectively. All patients received hydration, alkalinization and received allopurinol routinely. Urate oxidase and hemodialysis treatment were administered in some cases.

RESULTOf the 103 children with B-cell lymphoma, 18 were diagnosed as having ATLS (17.5%). All the 18 cases with ATLS were histopathologically confirmed as having Burkitt's lymphoma. All the patients were at stage III or IV and all had large tumor sizes, and 7 were found to have blasts in the bone marrow>25% (38.9%). Lactate dehydrogenase (LDH) levels≥1000 U/L were found in 11 (61.1%) cases. All patients had developed metabolic abnormalities, including hyperuricemia, hyperphosphatemia, hypocalcemia, and uremia. In terms of clinical features and prognosis, all cases had nausea, vomiting, anorexia, oliguria, and anuria at different levels. One had gastrointestinal bleeding, 7 patients experienced seizures. The etiology in five was hypocalcemia and two had reversible posterior encephalopathy syndrome and all responded well to treatment. Nine cases of ATLS responded to supportive care, 4 required hemodialysis, and the other 4 responded to urate oxidase. Ten cases survived and 8 died. The major cause of death was severe complications and treatment was given up in 5 cases and recurrence occurred in 3 cases.

CONCLUSIONATLS was commonly seen in Burkitt's subtype of B-cell lymphoma. Higher LDH and large tumor sizes and kidney involvement were important risk factors for the development of ATLS in children with B-cell lymphoma. Treatments with hydration, alkalinization and allopurinol were safe and effective. Urate oxidase and hemodialytic treatments should be given timely.

Child ; Humans ; Kidney ; physiopathology ; L-Lactate Dehydrogenase ; analysis ; Lymphoma, B-Cell ; complications ; diagnosis ; drug therapy ; Risk Factors ; Tumor Burden ; Tumor Lysis Syndrome ; diagnosis ; drug therapy ; etiology

OBJECTIVETo identify the effective stress management strategies among the Chinese.

METHODSThe sample was selected from Hangzhou, Guangzhou, Chongqing and Taiyuan by using a multi-stage sampling procedure, including 3679 subjects. The data were collected using the household interviewing survey method. The Chinese perceived stress scales (CPSS) measured stress. Stress management strategies included the cognitive and behavioral ones, the former were further divided into positive, neutral and negative ones and the latter were divided into three kinds, i.e. looking for support, liberating and displacing, and relaxing and detracting. The frequency of their usage and their perceived effectiveness were assessed. Multivariable analysis was used to examine the association between various stress management strategies and stress.

RESULTSThe prevalence of health risk stress (HRS) was 44.54% (95% CI: 42.90% - 46.12%). Among the cognitive strategies, all the positive strategies and one of neutral strategies ("Suiyuan") were associated with lower HRS, and the rest of them had no effects. Among the behavioral strategies, all were associated with lower HRS except that of looking for support.

CONCLUSIONThe effective stress management strategies identified in this study might be used to develop a stress management program.

Adult ; China ; epidemiology ; Educational Status ; Female ; Humans ; Male ; Middle Aged ; Occupations ; Psychology, Social ; Sampling Studies ; Social Behavior ; Social Environment ; Stress, Psychological ; epidemiology ; psychology ; therapy ; Surveys and Questionnaires ; Urban Population