Pancreatic encephalopathy (PE)is one of the severe complications of severe acute pancreatitis (SAP).Early diagnosis mostly depends on the history of disease as well as clinical symptoms and signs.PE progresses rapidly and is often complicated by multiple organ dysfunction,and it may finally develop into multiple organ failure with a high fatality rate if not treated in time.It is currently known that de-myelination is one of the important pathological features of this disease,with fat -soluble demyelination of cerebral gray matter and white matter,as well as inflammatory changes such as hemorrhage and edema.The target antigen of demyelinating lesions,however,is myelin basic protein (MBP).This paper reviews the changes in MBP levels in the demyelinating lesions of the central nervous system among PE pa-tients,with the purpose of providing clues for the early diagnosis and prognostic study of demyelinating lesions in PE.

OBJECTIVE: To study the in vitro anti-tumor activity of tungstophosphate compound(K6[P2W18O62]?14H2O) with Dawson structure.METHODS: MCF-7 cells were treated with different concentration of K6[P2W18O62]?14H2O,then its IC50 was measured by MTT assay;flow cytometry was applied to analyze cell cycle and apoptosis by computing the ratio of MCF-7 cells in different phase and its apoptotic ratio.Cell growth and viability were measured by trypan blue staining and cell counting by computing the ratio of living cells.The synergetic anti-tumor activity of tungstophosphate compound(K6[P2W18O62]?14H2O) and pharmorubicin was studied.RESULTS: K6[P2W18O62]?14H2O inhibited MCF-7 cell proliferation with IC50 of(33.7?3.2) ?mol?L-1,it reduced the proportions of MCF-7 cells at S phase and G1 phase,with the apoptotic rate at 3.7%～29.2% within 48 h.The percentage of living cells was 95.37%～76.78% at 48 h.As compared with pharmorubicin alone,the addition of K6[P2W18O62]?14H2O to pharmorubicin showed a significantly higher inhibitory action on proliferation of MCF-7 cells(P

A serum inhibited gene Si1(GenBank acession number:AY050169) was previously cloned and identified by differential expression of genes in U251 cells.For the further study of biological function of Si1, prediction procedure was performed to predict its subcelluar-localization.Relative experiments were carried out at the same time.The expression of EGFP/Si1 recombinant in HeLa cells showed Si1 protein located in nuclear which corroborated the prediction results of PsortⅡ, Proloc, Cello version2, Subnuclear compartments prediction system, NUCLEO and NUCPRED.According to the PredictNLS prediction, twelve different fragments of EGFP/Si1 recombinants were constructed to identify precise NLS regulation sequence.Findings proved that the real NLS regulation sequence was not the same as the software predicted(1 206 bp～1 239 bp on Si1 ORF), but located on 1 395 bp～1 594 bp of Si1.A tumor relatived mutation/EGFP recombinant localization result showed though the mutation site(1 639bp on Si1 ORF) does not located in NLS regulation sequence, it did affect wildtype Si1 protein divert to nuclear and may affect its natural function in cell, perhaps it is the main reason for highly mutation rate of Si1 in tumor.

Objective To isolate and indentify fetal hepatic progenitor/stem cells, and study the feasibility and effectiveness of their transplantation on acute liver injury in nude mice. Methods The primitive cells isolated from 13.5dpc pregnant mouse fetal hver by way of enzyme digesting were cultured in vitro and liver specific markers as AFP, CK19, Albumin, c-Met, were identified by immunofluorescence and RT-PCR on colonies. 4 × 105 cells were transplanted into nude mice with carbon tetrachloride induced acute liver injury. Hapatic functions were measured pre- and -post transplantation on days 1,2,4, 7. Meanwhile, hepatic pathology was studied. Results Compared to control group the hepatic functions gradually recovered in transplant group, on days 1,2,4 after fetal hepatic stem cell transplantation. The hepatic pathology significantly improved in stem cells transplantation group. Conclution Fetal hepatic progenitor/stem cell were successfully yielded by enzyme digest. Stem cells transplantation improved the hepatic function and pathology in acute hapatic injury model of nude mice.

Carbon nanotubes are a novel kind of nano-materials, and contribute to modify electrodes using their good capacity of electric transmission. Furthermore, carbon nanotubes may reduce the overpotential caused by the oxidation-reduction reaction of chemical materials, and ameliorate the oxidation-reduction reversibility of the biomolecules; Their wide specific surface area leads to enzyme immobilization and promote the electric transmission between enzyme active center and electrode surface; Functionalized carbon nanotubes bonding with various biomolecules will benefit to fix these biomolecules on the electrode surface. With the development of preparation and purification techniques, carbon nanotubes may widen the prospect of biosensors applied. The aim of this paper is to summarize and analyze the application, research status and development tendency of carbon nanotubes with regard to biosensors. Moreover, this paper reviews various carbon nanotubes modified oxidase biosensors, such as adsorption, paste, array and covalent bond, together with their application on DNA biosensor. The preparation, characteristics and research status of various sensors are also summarized.

BACKGROUND: It is discovered that trace elements in Chinese patent medicine play an important role in pharmaceutical efficacy and structural analysis. A new topic has been formed gradually in a further research on pharmaceutical efficacy and effective components of Chinese patent medicine in the view of inorganic trace elements. The fuzzy classified study on the interrelationship between trace and constant elements of Chinese herbs and therapeutic effects is to discuss the trace-element action of drugs in the holistic aspect of trace elenent and research rather scientifically the holistic coordination among trace elements in Chinese herbs.OBJECTIVE: To determine the contents of 21 kinds of trace and constant elements in Chinese patent medicines in the treatment of cardio-cerebral vascular disease. To study with fuzzy classified method the interdependence between trace, constant elements of drugs and therapeutic effects so as to provide a new approach for the quality evaluation of Chinese patent medicine.DESIGN: Testified observed study based on various Chinese patent medicines.SETTING: Chemistry teaching-research room in a university and department of cardiology in a general hospital of a chemical industrial group corporation.MATERIALS: Twenty-one kinds of common Chinese patent medicines for the treatment of cardio-cerebral vascular diseases in clinic, namely di' ao xinxuekang capsule(DXK), xueshuan xinmaining capsule(XMN), shan haidan capsule(SHD), buchang naoxintong capsule(NXT), linaoxin capsule(LNX), xinnaosu capsule(XNS), lixin wan(LXW), suxiao jiuxin wan (SJX), xinbao wan(XBW), yinxingye pian(YXY), fufang danshen pian (DSP), niuhuang jiangya wan(NHJY), naosaitong pian(NST), qiangli tianma duzhong wan ( TD W ) , tongsaimai pian ( TSM ) , tongmai ningxin infusion(TMNX), maitong capsule(MTC), fufang yinxing wan ( YXW ) , da huoluo dan(DHL), guanxin suhe capsule(GXSH) and xiaoshuan tongluo capsule (XSTL).METHODS: Wet digestion was used to manage samples, atomic absorption spectrophotometric method(AAS) method was used to determine the contents of 10 kinds of trace and constant elements in 21 Chinese patent medicines,namely Na, Ca, Mg, K, Fe, Cr, Ni, Cu, Zn and Mn. Data range method was applied for the standardized management of statistical indexes of various element contents in relevant drugs, dotprod(U, V) method was used to measure correlation coefficient(r) among the classified objects so as to determine fuzzy matrixes in universe. The interrelationship was analyzed between the contents of trace elements of various Chinese medicines and pharmaceutical efficacy. By the analysis of fuzzy matrixes in universe, it was to evaluate firmly on the efficacy similarity of various kinds of Chinese patent medicines with quantitative indexes.MAIN OUTCOME MEASURES: ① Results of element contents; ② Results of fuzzy cluster analysis on elements.RESULTS: The standardized management of statistical indexes was carried on the contents of Na, Ca, Mg, K, Fe, Cr, Ni, Cu, Zn and Mn in various drugs to determine correlation coefficient(r) among the classified objects so as to determine fuzzy matrixes in universe. When(r) = 0.55, there were 9 kinds of drugs similar in cluster, namely xueshuan xinmaining capsule, buchang naoxintong capsule, lixin wan, xin bao wan, qiangli tianmai duzhong wan,tongsaimai pian, maitong capsule, da h uoluo dan and xiaoshuan tongluo capsu le. When(r) =0. 65, there were 6 kinds of drugs similar in cluster,namely buchang naoxintong capsule, xin bao wan, qiangli tianmai duzhong wan, tongsaimai pian, maitong capsule and xiaoshuan tongluo capsule. When(r) =0. 87, there were 2 kinds of drugs similar in cluster, namely buchang naoxintong capsule and xin bao wan.CONCLUSION: It is indicated in the research that the drugs are in rich of trace and constant elements. The larger the correlation coefficient of drugs is,the more similar the pharmaceutical efficacy is. It is discovered the close interrelationship of the trace and constant elements in drugs with their pharmaceutical efficacy. In this research, fuzzy classified method is used to discuss, in the view of trace elements, the similarity of quantitative indexes in efficacy of Chinese patent medicine commonly administrated in the treatment of cardio-cerebral vascular disease, which has provided a new approach for the quality evaluation of Chinese patent medicine.

Objective To explore the changes and comparisons of the four biochemical indicator detection for the early renal im‐pairment in multiple myeloma patients .Methods The 54 patients with multiple myeloma of early onset(MM group) and 54 healthy peoples(control group) were retrospectively analyzed .The levels of serum Cystatin C(Cys C) ,creatinine(Cr) ,β2‐microglobulin(β2‐MG) ,and lactate dehydrogenase(LDH) were detected .And the results for statistical analysis .Results The levels of serum Cys C , Cr ,β2‐MG and LDH were higher significantly in the MM group than in the control group ,the difference was statistically significant (P<0 .05) .In the MM group ,the positive rate of Cys C ,Cr ,β2‐MG ,LDH ,combined detection of Cys C and Cr ,combined detection of β2‐MG and LDH ,combined detection of Cys C ,Cr ,β2‐MG and LDH was 63 .0% ,42 .6% ,74 .1% ,61 .1% ,66 .7% ,85 .2% and 96 .3% respectively .The positive rate of Cys C was higher than Cr ,the difference was statistically significant(P<0 .05) .Between the positive rate of combined detection of β2‐MG ,LDH and Cys C ,Cr ,the difference was statistically significant(P<0 .05) .The positive rate of combined detection of the four biochemical tests was the most highest .Conclusion In the early stage of the renal in‐jury in the patients with MM ,the combined detection of the four biochemical tests is most sensitive to discovery the early stage of the renal glomerular function injury .

Severe acute biliary pancreatitis can be treated by nonsurgical and surgical approaches,and choice of the surgical techniques as well as its timing are the keys points to the whole therapy.Early enteral nutrition via placing nasointestinal feeding tube plays an important role in the nutritional support for patients with severe acute pancreatitis.This paper intends to explore the experience in standardizing the therapy for all similar cases via reviewing and summarizing the treating process of a typical patient with severe acute biliary pancreatitis.

OBJECTIVE:To investigate the effects and safety of rosuvastatin on blood lipid and thyroid nodules in elderly pa-tients with dyslipidemia. METHODS:70 elderly patients with dyslipidemia were selected and randomly divided into control group (33 cases) and treatment group (37 cases). Control group was treated with routine treatment as abstain from tobacco and drink, low fat diet,Aspirin enteric-coated tablets 100 mg at bed time;treatment group was additionally treated with Rosuvastatin calcium tablet 10 mg at bed time,on the basis of control group. Both groups received the treatment for consecutive 12 weeks. BMI,blood lipid and the size of thyroid nodules were compared between 2 groups before and after treatment,and the occurrence of ADR was also observed. RESULTS:There was no significant difference in BMI between 2 groups before and after treatment (P>0.05). There was no significant difference in blood lipid level and the size of thyroid nodules between 2 groups before and after treatment (P>0.05). The blood lipid level and the size of thyroid nodule of 2 groups were improved significantly after treatment,and the treatment group was significantly better than the control group,with statistical significance(P<0.05). 2 pationts of creatment suf-fered from the increase of ALT but recovered withont angtreatment. CONCLUSIONS:Rosuvastatin can significantly improve blood lipid and decrease thyroid nodules in elderly patients with dyslipidemia with good safety.

Objective Accumulating reports have suggested that hepatic stellate cells (HSCs) exhibit immunosuppressive ability and may be responsible for the occurrence and development of hepatocellular carcinoma (HCC).The mechanisms through which HSCs affect T-cell-induced adaptive immune responses and the relationship with the regulatory T cells (Treg cells) were studied.Methods We isolated HSCs from wildtype mice to demonstrate the influence of HSCs on T-cell proliferation and explored their effect on Treg cells through mixed leukocyte reactions (MLRs) in vitro.Results We found that activated HSCs could induce T-cell hyporesponsiveness in adaptive immune response by inhibiting the proliferation of T cells andincreasing the quantity of Treg cells.Conclusion Activated HSCs may lead to hypoergia of T cells in adaptive immune reaction and up-regulate the expression of Treg cells,thus facilitating immunotolarance.