OBJECTIVE:To study induction effect of entecavir on the apoptosis of hepatocellular carcinoma HepG2 cells and its mechanism. METHODS:After treated with 0(normal control),10,30 and 100 μmol/L(low,medium and high concentration groups)entecavir for 48 h,MTT method was adopted to detect HepG2 cell viability. AnnexinⅤ-PI flow double staining was used to detect cell apoptosis. Western blot was used to determine the phosphorylation of nuclear factor kappa B p65(NF-κB p65)and nu-clear factor kappa B inhibitor α(IκBα),and the protein expression of Bax,Bcl-2,Survivin and C-myc. RESULTS:Compared with normal control group,the cell viability,the phosphorylation of NF-κB p65 and IκBα,and the protein expression of Survivin, C-myc and Bcl-2 of entecavir low,medium and high concentration groups all decreased;the apoptotic rate,the protein expression of Bax increased(P<0.05 or P<0.01),in concentration-dependent manner. CONCLUSIONS:Entecavir can decrease viability of HepG2 cells and induce cell apoptosis,which is related to up-regulation expression of Bax,down-regulation expression of Sur-vivin,C-myc and Bcl-2,and blocking the activation of NF-κB/IκBαsignaling pathway.

Hair can be easily collected,the collection method does not cause any harm to body.It can provide long and convinced information about drug uses.It possess irreplaceable advantages of blood,urine and other biological samples.The review summarizes the basic information and recent studies of hair analysis.It introducs the hair-shaft structure,the mechanisms of drug incorporation,extraction/purification methods and all kinds of analytical techniques.The advantages,drawbacks and promising prospects about hair in drug monitoring are also discussed.

Objective To analyze the radiological images of osteonecrosis in rare positions in recovered SARS patients, and to study the correlation with the hormone application.Methods The extremities of 41 SARS patients in the recovery stage from June to August in 2003 were examined by using X-ray and 0.5T MR scanner, then the correlation of MR examination results and the application of hormone was analyzed.The mean time interval between the imaging examination and initial hormone application was 88.2 days (66～106 days), the mean maximum hormone (metastab) dose was 392 mg (320-480 mg), and the average medication time was 47.2 days (30-70 days).Results The osteonecrosis of rare positions was revealed in 5 cases involving 11 positions, including bilateral heads of humerus (3), right scaphoid bone (1), right talus (1), bilateral calcaneus (1), and right ischium (1).The main MR manifestation was irregular abnormal signal.Osteonecrosis of right ischium was demonstrated on plain film in only one case.Conclusion MR examination, especially the multi-location scan is necessary in finding the osteonecrosis in SARS patients in the earlier phase.The hormone dose, the medication duration, the sensitivity to hormone, and the difference of individuals are important causes of osteonecrosis.

Objective To explore the clinical efficacy and adverse reactions of transarterial chemoembolization(TACE)combined with sorafenib for the treatment of liver carcinoma.Methods Forty-eight cases of intermediate-advanced liver carcinoma patients were divided into TACE combined with sorafenib group(test group)and TACE only group(control group)according to the wishes of the patient,with 24 patients in each group.The median Survival Time(mOS),clinical efficacy,quality of life,liver function indexes and adverse reactions were compared in two groups.Results Until the deadline of follow-up time,the mOS in test group(15.9 months)was significantly higher than that in control group(9.3 months).The difference was statistically significant(P<0.05).The ORR,CBR in test group(58.3%,87.5%)were significantly higher than those in control group(33.3%, 54.2%).The difference was statistically significant(P<0.05).The quality of life improvement rate in test group(79.2%)was significantly higher than that in control group(37.5%).The differences were statistically significant (P<0.05 ).The ALB,TBIL increased significantly after treatment than before treatment in both groups.The differences were statistically significant(P<0.05 ).Conclusion TACE combined with sorafenib is more efficiency than TACE only treatment,and it could effectively extend the period of life to guarantee the quality of life.What's more,it has well tolerated adverse reactions,which is worthy of promoting.

Objective To determine the contents of elements Fe, Mn, Ni, Cu, Zn, Ca, Mg and Cr in Gentiana macrophlla and Gentiana officinalis. Methods The contents of elements were determined by flame atomic absorption spectrometry. Results The recovery rates obtained by standard addition method were between 88.1%～114.5%, and the RSDs were lower than 3.18%. Gentiana macrophlla is rich in the trace elements such as Fe, Ni, Cu, Ca, Mg, and Gentiana officinalis is rich in the trace elements such as Mn, Zn, Cr. Conclusion There are some difference between wild and planted Gentiana officinalis in element content, that may be related to their growing environment.

Objective To improve the stability and practicability of field liquid transfusion control system.Methods SPCE062A 's high accurate AD was used to acquire the dropping speed,and a new method for weight sensor 's self proofread was applied.Results The infrared photoelectric sensor was removed,so the monitoring part could work with any appropriate sensor.Conclusion The system cost is decreased and its stability and availability are enhanced.[Chinese Medical Equipment Journal,2008,29(2):66-67]

Objective To explore the effect of shengmai injection (a Chinese herb preparation made from radix astragali and radix rehmanniae) on restoration of spontaneous circulation (ROSC) and hemodynamics in the early stage of resuscitation (CPR) in animal models of cardiac arrest, providing adjuvant support to stabilize the circulation for the facilitation of follow-up study in the resuscitated animal. Method A total of 30 rabbits were randomly(random number) divided into two groups, shengmai group and saline group, ( n = 15 in each group).Asphyxia method was used to establish animal models of cardiac arrest. In the shengmai group, 2 mL/kg shengmai injection was given immediately just after initiation of CPR and the same dose of shengmai injectio was given once again 10 minutes after ROSC. In the saline group, saline was administered in the same volume and at the same given time instead of shengmai injectio. The duration of cardiac arrest of rabbits, and the lengths of time consumed for ROSC and for resume of spontaneous respiration after CPR as well as the rate of ROSC obtained and 6-hours survival rate after CPR were documented. The changes of hemodynamics including LVSP, + dp/dtmax,- dp/dtmax, LVEDP were recorded before asphyxia,just after the emergence of ROSC and 30 min,60 min, and 120 min after ROSC. Results There were no significant differences in duration of cardiac arrest, length of time consumed for the resume of spontaneous respiration, rate of ROSC obtained and 6-hours survival rate between two groups (P ＞ 0.05), but the ROSC emerged sooner in shengmai group. The LVSP, + dp/dtmax and- dp/dtmaxsignificantly lower 30 min, 60 min and 120 min after ROSC then those before asphyxia in both groups, but LVEDP increased after ROSC (P ＜0.05). At the corresponding intervals after ROSC, the values of LVSP, + dp/dtmaxand - dp/dtmax in the shengmai group were higher than those in the saline group, and the values of LVEDP in the shengmai group were lower than those in the saline group ( P ＜ 0. 05). Conclusions Shengmai injectio used in rabbits with cardiac arrest can shorten the time consumed for ROSC after CPR, improve cardiac diastolic and systolic function after R OSC, stabilizing the hemodynamics after resuscitation.

ObjectiveTo investigate the relevant factors influencing the incidence and mortality of post cardiac arrest syndrome (PCAS), and to provide the basis of improvement of resuscitation rate.Methods A single center retrospective study of cardiopulmonary resuscitation (CPR) according to Utstein model was conducted. A clinical case report form was designed to collect clinical data. The clinical data of patients whose spontaneous circulation was restored (ROSC)> 24 hours in intensive care unit (ICU) of the First Hospital of Jilin University from January 2008 to June 2014 were collected and analyzed. The relevant risk factors of the incidence and mortality rate of PCAS were screened and analyzed by multivariate logistic regression analysis.Results① Successful CPR was achieved in 93 patients, of whom 83 patients were shown to have systemic inflammatory response syndrome (SIRS), and 75 patients suffered from PCAS (80.65%). Among them 49 died, and 18 patients who did not suffer from PCAS survived.② The age, gender, history of previous chronic disease, site of occurrence of cardiac arrest, type of rhythm when cardiac arrest occurred, and dosage of adrenaline showed no significant influence on the incidence of PCAS. The incidence of PCAS was elevated when defibrillation was done more than 3 times (χ2= 10.806,P= 0.001), SIRS occurred after ROSC (χ2= 46.687,P< 0.001), interval between collapse and first defibrillation over 5 minutes (χ2 = 6.429,P = 0.011), interval between collapse and CPR longer than 5 minutes (χ2 = 4.638,P = 0.031), interval between collapse and administration of first resuscitation medication> 5 minutes (χ2 = 4.190,P = 0.041), and ROSC time was longer than 10 minutes (χ2 = 20.042,P< 0.001). Bivariate correlation showed that interval between collapse and CPR, interval between collapse and administration of first resuscitation medications, and ROSC time were all correlated (r1 = 0.677,r2 = 0.481,r3 = 0.617, allP< 0.001).③ There were no significant relations between the prognosis of PCAS patients and times of defibrillation, the amount of adrenaline used, and interval between collapse and first defibrillation. The mortality rate of PCAS was relatively elevated when interval between collapse and CRP was longer than 5 minutes (χ2 = 10.792,P = 0.001), interval between collapse and administration of first resuscitation medications was longer than 5 minutes (χ2 = 13.841,P< 0.001), ROSC time> 10 minutes (χ2 = 36.451,P< 0.001), the number of dysfunction organ≥ 4 (χ2 = 28.287,P< 0.001), arterial blood lactate levels> 2 mmol/L (χ2 = 28.926, P< 0.001), and acute physiology and chronic health evaluationⅡ (APACHEⅡ) score> 15 (χ2 = 33.558,P< 0.001). Multivariate logistic regression analysis showed that the risk factors affecting the prognosis were ROSC time [odds ratio (OR) after adjustment = 36.643, 95% confidence interval (95%CI) = 2.382-563.767,P = 0.010], the number of organs with dysfunction (OR = 9.010, 95%CI = 1.140-71.199,P = 0.037), and APACHEⅡ score (OR = 10.001, 95%CI =1.336-74.893,P = 0.025).Conclusions ROSC time, the number of organs with dysfunction, and APACHEⅡ score were independent predictors of PCAS prognosis. Efforts should be given to shorten the rescue time, to shorten the time for restoring the spontaneous circulation, to prevent and treat SIRS after ROSC, and to protect the function of organs, in order to improve the prognosis of patients with PCAS.

ObjectiveTo investigate the protective effect of combination of triptolide and irbesartan on the podocytes in a type 2 diabetic(T2DM) rat model,and evaluate its mechanism.Methods T2DM rats were induced by fed with high-sucrose-high-fat diet combined with a low dose of streptozocin.The rats were randomly divided into 5 groups:normal control group ( NC,n =10),diabetes group ( DM,n =11),triptolide treatment group (DT,n =12),irbesartan treatment group (DI,n =12) and triptolide combined with irbesartan treatment group (DTI,n =13). Ultrastructure of podocytes was observed by electronic microscopy and urinary albumin (UAL) excretion by ELISA was determined after 8 weeks.The expression of nephrin and bone morphogenetic protein-7(BMP-7), connective tissue growth factor (CTGF),transforming growth factor (TGF)β1 mRNA and proteins were detected by immunohistochemistry,real-time PCR and Western blot. Results Increased UAL was significantly attenuated in all treatment groups.Compared to NC group,UAL in DM group was increased significantly (0.45 ± 0.09 vs 6.36 ± 0.87,P ＜ 0.01 ),while decreased in triptolide or irbesartan alone treatment group (2.48 ± 0.37 and 2.68 ±0.42,both P ＜ 0.01 ).Compared with those in control groups,kidney expression of nephrin,BMP-7 mRNA and proteins were downregulated while CTGF, TGFβ1 mRNA and proteins were significantly upregulated in T2DM rats. Triptolide or irbesartan each alone moderately ameliorated albuminuria and podocyte damage.However,their combined usage showed a dramatic therapeutic synergism,manifested by prevention of progressive albuminuria,restoration of the glomerular filtration barrier,reversal of the decline in slit diaphragm proteins,reduction expression of CTGF,TGFβ1,and upregulation of BMP-7.Conclusion Our findings show that triptolide can increase the efficacy of irbesartan,leading to a more effective prevention of kidney disease in T2DM rat model,which may through upregulation of BMP-7 and inhibition the overexpression of CTGF and TGFβ1.

Objective To review the clinical features,etiology and differential diagnosis of hypopituitarism.Methods The clinical data of 260 patients with hypopituitarism admitted to our hospital during 2007 to 2011 were retrospectively analyzed.Results In 260 patients 96 were males and 164 were females,the average age of female patients was significantly higher than that of males[ (44 ± 16) vs.(32 ± 20) years; t =3.821,P =0.001 ].Patients under 20 years accounted for the highest proportion in male cases (38/96,39.6％) ; while patients aged 40 - 60 years were the highest proportion for female cases (86/164,52.4％).Pituitary tumor and postoperative damage was the most common cause for hypopituitarism accounting for 36.2％ (94/260),followed by Sheehan syndrome (86/260,33.1％).The most common manifestation of hypopituitarism was anemia (102 eases) ; 26 cases presented all pituitary function failure.The causes leading to hypopituitarism usually showed specific manifestations in imaging examinations.The overall misdiagnosis rate was 40.4％ (105/260)in this series,while that of etiological diagnosis was 25.4％ (66/260).Conclusions This study suggests that hypopituitarism caused by different causes can be diagnosed by disease history,clinical manifestations and pituitary imaging examination.