Objective To evaluate the performance of emergency test and the applicability under complex field conditions of biochemical modules of field point-of-care test ( POCT ) system ( type A ) .Methods The precision and anti-interference ability of albumin ( ALB ) , total bilirubin ( TBIL ) , alanine transaminase ( ALT ) , aspartate transaminase (AST),blood area nitrogen(BUN),creatinine(CREA),uric acid(UA),lactate dohydrogenase(LDH),creatine kinase ( CK) ,and glucose( GLU) detected by field POCT system( A) were analyzed according to standards formulated by National Committee for Clinical Laboratory Standards(NCCLS).Field POCT system(A) and Coulter Beckman AU2700 automatic biochemical analyzer were used to detect the serum of 22 clinical cases respectively.After simulating the field environment by adjusting the temperature and humidity, we compared the results of mixed serum under different environment conditions. Results The coefficients of variation in total precision of ALB,TBIL,ALT,AST,BUN,CREA,UA,LDH,CK,and GLU detected by field POCT system(A) were 3.34%,6.54%,6.01%,4.80%,3.95%,5.59%,3.33%,6.19%,7.40%,and 4.56%(LevelⅠ);and 3.08%,4.47%,4.02%,4.31%,3.76%,4.22%,2.93%,5.25%,6.39%,and 4.35%(LevelⅡ) respectively.When triglycerides( TG) level was at 21 mmol/L, the interference rate was below 10%.When bilirubin level was at 120 μmol/L, the interference rate of ALT,AST and CREA was -33.33%,-22.99%,20.00%(LevelⅠ), and -22.13%,-14.55%,and 8.70%(LevelⅡ),respectively.When its level was at 240 μmol/L, the interference rate of UA was -16.67%and -24.69%, respectively at two levels;if hemoglobin( Hb) was at 170 mg/dl, the interference rate of TBIL and LDH was 20.00%,and 99.26%(LevelⅠ),and 15.38%,and 40.79%(LevelⅡ),respectively;if it was at 340 mg/dl, the interference rate of ALT and AST was 9.84% and 13.79%(LevelⅠ), and 12.30%,and 12.27%(LevelⅡ),respectively;if it was at 510 mg/dl, the interference rate of CREA,UA and Ck in LevelⅠwas 26.67%, 16.67%,and 11.74%.The R2 of linear regression between field POCT system( A) and AU2700 automatic biochemical analyzer were 0.961,0.995,0.989,0.995,0.990,0.989,0.989,0.963,0.978,and 0.993, respectively.The POCT system could not work at 35℃ or higher temperature, and there was no difference in the results of detection between temperatures of 10-30℃or RH of 70%-90% and normal temperature and humidity(20℃,RH 50%) (P>0.05). However, the result of ALT and CK at high temperature and humidity was significantly higher than at normal temperature and humidity(P<0.001,and P=0.011, respectively).Conclusion The biochemical module of field POCT system(A) has a good correlation with the common large biochemical analyzer, and its precision meets the requirement of laboratory detection, but jaundice and hemolytsis can interfere in several tests to varying degrees.The POCT system can basically ensure accurate detection under field conditions of temperature and humidity, but should not work under extreme environments.

Aim To investigate the role of TGF-β3 in the anti-proliferation effect of ursolic acid(UA)in co-lon cancer cells and the possible molecular mechanism underlying this effect.Methods We introduced crys-tal violet staining,flow cytometry and Western blot as-say to determine the effect of UA on proliferation and apoptosis in HCT1 1 6 cells.The levels of TGF-β3, Smad2 /3 and β-catenin in HCT1 1 6 cell were evaluated by RT-PCR and Western blot.Finally,TGF-β3 inhibi-tor and recombinant adenovirus,and luciferase reporter assay were used to analyze the possible mechanism through which TGF-β3 mediated the anti-cancer effect of UA in HCT1 1 6 cells.Results UA inhibited the proliferation and induced apoptosis apparently in HCT1 1 6 cells.UA down-regulated TGF-β3 both in mRNA and in protein level.Meanwhile,UA decreased the phosphorylation of Smad2 /3 concentration depend-ently,although no significant effect was found on the total protein level of Smad2 /3 in HCT1 1 6 cells.Over-expression of TGF-β3 attenuated the inhibitory effect of UA on the proliferation of HCT1 1 6 cells,while the TGF-β3 inhibitor potentiated this effect. UA sup-pressed the transconduction of Wnt/β-catenin signaling in HCT1 1 6 cells through decreasing the level of β-catenin.Exogenous expression of TGF-β3 increased the level of β-catenin and partly reversed the UA-in-duced decrease of β-catenin.However,TGF-β3 inhib-itor potentiated the inhibitory effect of UA on β-catenin in HCT1 1 6 cells.Conclusion The anti-proliferation activity of UA in colon cancer may be partly mediated through down-regulating TGF-β3 to suppress Wnt/β-catenin signaling at least.

Objective Research on traumatic the related factors of sleep disorder after traumatic brain injury ,in order to pro-vided the rationale for the diagnosis and treatment .Methods The SPIEGEL was used to evaluate the traumatic brain injury patients who were hospitalized .Recording time in sleep disorders in 3 months .Analysis the relations between the sleep disorders and brain injury site by combining with the patients head CT and MRI .Results Seen in 200 cases of patients with sleep disorders of 105 cases (52 .5% );71 cases appeared in patients within 1 week after waking ,accounted for 76 .19% ;The brain stem ,frontal lobe and basal ganglia injury occurred sleep disorders were more likely(66 .7% ,64 .0% ,70% ) .The difference was statistically significant(P<0 .05) .Conclusion Sleep disorder is a common clinical symptom of mild traumatic brain injury .a time to focus on the patients with-in 1 week after waking ,and closely related to brain stem ,frontal lobe and basal ganglia injury .

Objective To explore the abnormal changeof the polysomnography(PSG) in the patientwith traumatifrontal lobe injury .MethodTotally 16 patientwith traumatifrontal lobe injury accompanying sleep disorde(brain traumgroup) and 20 individualof physical examination (control group) were performed the whole nighPSG .ResultCompared with the control group ,the incubative stage of sleep in the brain traumgroup waprolonged ,while the sleep time and slow wave sleep time were shortened .The rapid eye movemen(REM) time and the periodicity of REM had statistical differencebetween the two group,buthe REM incubative stage ,density and intensity of REM had no statistical differencebetween the two goup.Conclusion The changeof PSG in the patientwith traumatifrontal lobe injury are dominated by the extension of the REM time and the shorten-ing of REM periodicity .

Aim To investigate the relationship be-tween the anti-proliferation effect of resveratrol ( Res ) and p38 MAPK in colon cancer cells .Methods Crys-tal violet staining , Western blot and flow cytometry were employed to analyze the effect of Res on the pro-liferation in LoVo cells.Western blot assay was used to detect the effect of Res on the apoptosis of LoVo cells and the phosphorylation of p 38 MAPK.Crystal violet staining and Western blot assay were used to analyze whether p38 MAPK was involved in the Res-induced proliferation inhibition and apoptosis in LoVo cells .Re-sults Res inhibited the proliferation , arrested cell cy-cle at S phase , and increased the protein level of PC-NA in LoVo cells apparently .Res increased the level of Bad in LoVo cells, but decreased the level of Bcl-2. Although Res exerted no substantial effects on total lev-el of p38 MAPK, it markedly increased the phospho-rylation level of p38 MAPK in LoVo cells.p38 MAPK inhibitor promoted the proliferation , and decreased the anti-proliferation effect of Res on LoVo cells .Moreo-ver , the effects of Res on the level of Bcl-2 and Bad were both reduced by the p 38 MAPK inhibitor .Con-clusions Res can inhibit the proliferation of LoVo cells, which may be partly mediated by promoting the phosphorylation of p38 MAPK.

Aim To study the anti-proliferation effect of resveratrol (Res)and the role of Res-induced bone morphorgenetic protein 9 (BMP9 )in this process in colon cancer cells.Methods Crystal violet staining and flow cytomtry were introduced to assay the anti-proliferation effect of Res in LoVo cells.The effect of Res on apoptosis in LoVo cells was also detected with flow cytometry.Then,RT-PCR and Western blot assay were employed to unveil the effect of Res on the ex-pression of BMP9 .The effect of BMP9 on the anti-pro-liferation of Res in LoVo cells was analyzed with crystal violet staining and flow cytometry too.Finally,the effect of Res on the expression of ALK2 and ALK3 was assayed with RT-PCR,and the inhibitor of ALK2 and ALK3 was used to figure out the possible mechanism of BMP9 on Res-induced proliferation inhibition in LoVo cells.Results Res apparently inhibited the prolifera-tion,arrested the cell cycle at S phase in LoVo and in-creased the percentage of apopotic cells in LoVo cells. Res increased the expression of mRNA and protein of BMP9 concentration dependently. Exogenous ex-pressed-BMP9 enhanced the anti-proliferation and ap-optosis inducing effects of Res in LoVo cells, but BMP9 knockdown decreased these effects of Res.Al-though Res had no apparent effect on increasing the phosphorylation of Smad1/5/8,it increased the ex-pression of ALK2 and ALK3 .Inhibition of ALK2 and ALK3 decreased the anti-proliferation effect of Res partly in LoVo cells.Conclusion Res is potent to in-hibit the proliferation of LoVo cells,Which may be mediated by up-regulating the expression of BMP9 and its receptor at least.