Acute-on-chronic liver failure(ACLF)is a complex clinical syndrome of acute liver function deterioration on the basis of chronic liver diseases,characterized by hepatic and/or extra-hepatic organ failure and a high short-term mortality rate.At present,there is still a lack of effective treatment methods,and the mortality rate of ACLF reaches 50%-90%after comprehensive medical treatment.A simple,rapid,and accurate prognostic prediction model for ACLF can help clinicians accurately judge the prognosis of ACLF patients in the early stage,identify the patients with poor prognosis,and provide early interventions,which can improve patient prognosis to some extent and help to reduce mortality rates.With the continuous development of computer science and increasingly powerful data processing capabilities,artificial intelligence is gaining more attention and has been applied in various aspects of liver diseases including diagnosis,treatment,and prognostic prediction.With reference to the current status of research in China and globally,this article reviews the common prognostic models for ACLF and machine learning-based prognostic prediction models and summarizes the latest research advances,in order to provide new perspectives for the future development of prognostic prediction models for ACLF.

Objective To investigate the effect of improving the human immunodeficiency virus (HIV)posi-tive detection rate by single sample nucleic acid amplification test (SS-NAT) in Shenzhen ,and to explore the effect of SS-NAT on reducing the risk of HIV infection in transfusion .Methods 269 228 blood samples were performed parallel detection by SS-NAT (Procleix Tigris ) and two kinds of enzyme-linked immuno sorbent assay(ELISA)reagents ,and then the samples with nonreactive by ELISA and reactive by SS-NAT were tested by HIV identification assay .The blood donors with reactive HIV identification assay were made tracing tests . All the samples with reactive by ELISA or HIV identification assay were sent to the Shenzhen Center for Dis-ease Control and Prevention (CDC) for Western Blot (WB) diagnostic tests .Results The samples with reac-tive by the third generation ELISA reagents ,the fourth generation ELISA reagents ,both ELISA reagents and SS-NAT were 188 ,340 ,422 and 103 ,which reactive rate was 0 .698‰(188/269 228) ,1 .263‰(340/269 228) , 1 .567‰(422/269 228) and 0 .383‰(103/269 228) ,respectively .We found four samples with nonreactive by ELISA but reactive by SS-NAT .The four donors were found HIV reactive by both ELISA and SS-NAT after tracing .All the samples with reactive by ELISA or HIV identification assay were sent to CDC for confirmatory tests and 103 of them were positive .The positive detection rate of transfusion-transmissible HIV infection af-ter ELISA detection was 1∶67 307(4/269 228) .Conclusion The application of SS-NAT in blood screening can improve the HIV positive detection rate ,shorten window period of HIV detection and reduce residual risk of transfusion-transmissible HIV infection ,and then blood safety can be effectively improved .

Objective To compare the clinical application of Da Vinci robot surgical system (RSS) with traditional open surgery (TOS).Methods From Feb 2015 to Jul 2016,48 cases of upper abdominal surgical disease patients were divided into RSS group (23 cases) and TOS group (25 patients) randomly.Results The anesthesia time [(194 ±16)min vs.(181 ±11)min,t=3.262,P=0.002] and operation time [(167 ± 14) min vs.(158 ± 14) min,t =2.292,P =0.027] were much longer in the RSS,while the blood loss during operation significantly less than the TOS [(128 ± 62) ml vs.(190 ± 86) ml,t =-2.886,P =0.006].The RSS has obvious advantages in 24 h-drainage [(69 ± 27) ml vs.(114 ± 54) ml.t =-3.680,P =0.001],time to out-of-bed activity [(27.7 ± 8.0) h vs.(35.7 ± 9.9) h,t =-3.067,P =0.004],BPS,postoperative exhausting time[(27.2 ±5.9)h vs.(32.8 ±8.3)h,t =-2.690,P =0.01] and length of hospital stay [(10.4 ± 1.8) d vs.(11.8 ± 1.9) d,t =-2.600,P =0.013].But the total hospital cost was higher in RSS [(117 000 ± 10 000) yuan vs.(77 000 ± 8 000) yuan,t =15.087,P =0.000)].Conclusions The RSS is a much minimally invasive surgery,reducing blood loss and postoperative pain,promoting rapid recovery,shortening hospital stay.

Objective To explore the pulse diagram parameter changes of chronic renal insufficiency patients with five symptoms types(spleen kidney qi deficiency ,spleen kidney Yang deficiency ,kidney liver Yin deficiency and the deficiency of Yin and Yang ) , and to establish the differentiation mode of each symptoms type for assisting the clinical diagnosis .Methods The DS01-C pulse manifestation instrument made by the Shanghai Daosh company was adopted to detect and analyze the pulse manifestations in the healthy control group and the chronic renal insufficiency group .Results The healthy control group was dominated by the normal pulse manifestation .The chronic renal insufficiency group was dominated by the taut pulse and its concurrent pulse .Along with the progress of the disease ,the pulse manifestations also appeared the corresponding changes .The patients with spleen kidney qi defi-ciency and spleen kidney Yang deficiency were dominated by the taut pulse .Comparing the patients with liver kidney Yin deficiency and Qi Yin deficiency ,the taut pulse and concurrent rapid pulse were common ,in addition ,the former also had the deep pulse .The patients with Yin and Yang deficiency showed the slow pulse and the taut pulse or the taut pulse and rapid pulse .Conclusion The pulse manifestation change in the patients with chronic renal insufficiency is dominated by the taut pulse and the concurrent pulse , the pulse manifestation change of various symptoms types are complex .

Objective To investigate high risk human papillomavirus(HR-HPV)prevalence among married women in Beijing and to study the high risk flactors.nethods During March 2007 to September 2008.a total of 6185 married women sampled from 137 communities in 12 districts were screened bv HR-HPV DNA test and cytogical test.The interview was carried out with unified questionnaires.The databage was set up and twice entered in EpiDam 3.0.After checked up,the data were analyzed in SPSS 15.0.Results (1) The HR-HPV infection rate was 9.89%.The HR-HPV infection rate of the city zone,the suburb and the exurb were 9.34%,10.51% and 9.51% (P>0.05).The HR-HPV infection rate of the native and the oudander were 9.53%,11.30% (P<0.05).(2) The age distribution of HR-HPV infection was that the rate was around 10% among 25 to 44 age groups,which was the highest(11.21%) in 30 to 34 age group;then the rate was descended as the age raising,the rate of 50 to 54 age group was the lowest(7.78%).(3) Multiple logistic regression showed that the related risk factors of HR-HPV infection mainly included 1000 RMB and above of family income per person per month.possessing more than 1 sexual partner of her husband,outlander and hish levels of education.(4) The prevalence of cervical intraepithelial neoplasia(CIN)in HR-HPV positive group wag significantly higher than that in HR-HPV negative group(29.76% vs 3.32%,P<0.01).Conclusions(1)The HR-HPV infection rate among aged 25 to 54 years was 9.9% and there was no significant difference in area distribution.(2)The hish risk population which should strengthen screening was the married bearing-age women with high level of family income,outlander,high levels of education and her husband possessing more than 1 sexual partner.(3)HR-HPV infection is the main risk factor for CIN and cervical cancer.while does not provide a causal relationship with them.The high risk population should be checked regularly to understand the development of HR-HPV infection and CIN incidence.

Objective To construct double expression retroviral vectors targeting chronic myeloid leukemia (CML) b3a2-type mRNA and investigate its effect on the phenotype of K562 cells. Methods The eGFP coding sequence was inserted into the retroviral vector pMSCV-neo to construct pMSCV/GFP, then H1-RNA pol III-based transcription cassettes was subcloned into it to form pMSCV/GFP-H1-BCR/ABL40AS. Two control vectors pMSCV/GFP-H1-BCR/ABL40S & pMSCV/GFP-H1-BCR/ABL80AS were constructed in addition. All these constructions were identified by restriction enzyme analysis and DNA sequencing. After that, the recombinant vectors were transferred into retrovirus packaging cell line PT67 by using lipofectamine2000, and G418 were used to select stable virus-producing cell lines. Viral titer was determined by infection of NIH3T3 cells sequentially. The cell-growth curve was assayed, cell apoptosis was checked with Annexin V-PE/7AAD double staining and flow cytometry analysis after 24-hour infection, the PKR phosphorylation was assayed by Western blotting. Results The plasmids were successfully constructed. Four cell lines, named as PT67-MSCV/GFP, PT67-40as, PT67-40s and PT67-80as were gained by G418 selection, and virus titers were 6.2?10~ 5 , 5.6?10~ 5 , 4.6?10~ 5 and 6.0?10~ 5 CFU/ml respectively. PT67-40as suspensions could induce K562 cell apoptosis by (22.54?3.19)%, significantly different from PT67-MSCV/GFP or PT67-40s (P

Objective To investigate the therapeutic effect of Shouling Jiannao Capsule (SJC)for the treatment of multiple infarction dementia (MID),and to observe the effect of SJC on blood lipid level and hemorrheology.Methods Fifty MID patients aged 45~80 subjecting to the diagnostic standards were randomly divided into two groups:treatment group (N=30)received SJC (mainly composed of Radix Polygoni Multiflori,Ganoderma Lucidum,Radix Notoginseng,Radix Salviae Miltiorrhizae and Radix Curcumae),and control group (N=20)received dihydroergotoxine.The treatment lasted 2 months.The therapeutic effect in both groups was evaluated after treatment,and the changes of scores of TCM syndromes,Hasegava Dementia Scale(HDS),and Mini-mental State Examination (MMSE)were observed before and after treatment.Meanwhile,blood lipid level,hemorheological indexes,erythrocyte superoxide dismutase(SOD),plasma lipid peroxide(LPO)and transcranial color Doppler(TCD)were examined and statistically analyzed before and after treatment in both groups.Results After treatment,the total effective rate was 90.0% in the treatment group and 55.0% in the control group,the difference being significant(P

OBJECTIVE:To evaluation of the efficacy and safety of azithromycin in the treatment of acute infections METHODS:A randomized controlled multicenter clinical study was used to compare the clinical efficacy of azithromycin(200mg q d for 3～5 days) with erythromycin(500mg b i d for 5 days) RESULTS:The cure rate,effective rate,and bacterial clearance rate were 76 7%,95 0%,and 94 3% respectively for azithromycin group and were 48 3%,76 7%,and 77 4% respectively for erythromycin group with a side-effect incidence of 10 0% for azithromycin group and 39 3% for erythromycin group CONCLUSION:Azithromycin is superior to erythromycin in clinical efficacy,safety and side-effect incidence

OBJECTIVE:To prepare ofloxacin hollow suppository(OHS) and to observe its in vitro dissolubility.METHODS:OHS was prepared with PEG 6000,PEG 400 and Carbopol-940 as wase material and wax as retardant.The content of ofloxacin in OHS was determined with the first order derivative UV-spectrophotometry.RESULTS:The wax,as a retardant,could retard the release of drug.The in vitro dissolution of OHS revealed the first order dissolution pattern:K0～1=27.81/h,indicating a speedy effect,K2～6=5.94/h,indicating sustained-release effect.CONCLUSION:This preparation is feasible in technology and controllabe in quality.The preparation of OHS extends the kinds of dose-form of ofloxacin

OBJECTIVE:To study the effects of Shuanghuanglian on pharmacokinetics of theophylline in healthy sub?jects.METHODS:The serum concentration of theophylline was determined by HPLC and analyzed by3p97pharmacokinetic program.RESULTS:The main pharmacokinetic parameters of single theophylline and that in combined use with Shuanghuan?glian were as follows:T max were(1.66?0.56)and(1.59?0.78)h,C max were(6.23?1.31)and(6.10?0.94)?g/ml,T 1/2 were(5.76?1.11)and(6.09?1.63)h,CL were(47.72?5.12)and(50.98?10.85)ml/(kg?h),Vd were(369.18?40.15)and(430.37?48.33)ml/kg,AUC 0～∞ were(84.56?14.43)and(89.27?26.35)?g/(h?ml),respectively.CONCLUSION:The Vd of theophylline were increased(P