Hepatic stellate cells(HSCs)are key sources of extraeellular matrix during liver fibrosis and in normal liver.During chronic injury,HSCs transform into myofibroblast-like cells,causing liver fibrosis.Hepatocellular carcinoma iS multiple factors disease.There are considerable HSCs infihration in the extracellular matrix of hepatocellular carcinoma.Investigation the interaction between HSCs and hepatocellular carcinoma Can provide a new thinking of hepatocellular carcinoma therapy.

Objective To explore the effect of nursing intervention on the hyponatremia after cervical spinal cord injury. Methods 60 patients with the hyponatremia after cervical spinal cord injury were divided into a control group (n=30) and a nursing intervention group (n=30). The control group was just given a general treatment on hyponatremia, while the nursing intervention group was given a systematic nursing intervention of hyponatremia by the duty nurse concerned. The serum sodium value and the course of disease of the two groups were both analyzed a month after nursing intervention. Results Compared with the control group, the value of serum sodium in the nursing intervention group got a significant rise with a shorter course and a less relapsed cases (P<0.01). Conclusion Nursing intervention may improve the hyponatremia after cervical spinal cord injury.

OBJECTIVETo study the reversal effect of nomegestrol acetate (NOM) on mutidrug resistance (MDR) in MCF7/ADR and its mechanism.

METHODSUsing tetrazolium dye assay, effects of various concentrations of NOM on sensitivity to ADR in MCF7/ADR was studied. Expression of MDR related genes MDR1, glutathoine S-transferase Pi (GSTpi), Topoisomerase II alpha (Topo II alpha) and MDR related protein (MRP) were assayed by reverse transcription-polymerase chain reaction (RT-PCR) and immunocytochemistry assay. Using flow cytometry (FCM), intracellular ADR concentration effects on cell cycle were observed.

RESULTSNOM significantly reversed MDR in MCF7/ADR. After NOM 20, 10 and 5 micromol/L treatment, the chemosensitivity to ADR increased to 21, 12 and 8 times. The reversal activity of NOM was stronger than that of the precursor compound megestrol acetate, and was comparable to that of verapamail. After treatment with NOM 5 micromol/L both MDR1 and GSTpi mRNA genes expression began to decline on D2 (P < 0.05, & P < 0.01) and reached the lowest level on D3 (both P < 0.01), but the expression levels began to rise on D6 again (both P < 0.05). The expression of MRP and Topo II alpha gave no significant change. Changes of P-gp and GSTpi protein expressions were similar to those of their mRNA expressions, showing early decline and late rise. Two hours after NOM 20, 10, and 5 micromol/L treatment, intracellular ADR concentration increased 2.7, 2.3 and 1.5 times, respectively. FCM data showed that after forty-eight hours, combined administration of NOM (20 micromol/L) and ADR (from low concentration to high concentration), MCF7/ADR cells showed gradual arrest in the G(2)M phase with the increase of ADR dose.

CONCLUSIONNOM has strong reversal effects on MDR in MCF7/ADR. The reversal takes place via different routes, i.e. down regulating mRNA and protein expression levels of MDR1 and GSTpi, increasing intracellular drug concentration, and enhancing the arrest of ADR in cells at G(2)M phase.

ATP-Binding Cassette, Sub-Family B, Member 1 ; genetics ; metabolism ; Antigens, Neoplasm ; Breast Neoplasms ; genetics ; pathology ; Cell Survival ; drug effects ; DNA Topoisomerases, Type II ; genetics ; metabolism ; DNA-Binding Proteins ; Drug Resistance, Neoplasm ; genetics ; Gene Expression Regulation, Neoplastic ; drug effects ; Glutathione S-Transferase pi ; Glutathione Transferase ; genetics ; metabolism ; Humans ; Immunohistochemistry ; Inhibitory Concentration 50 ; Isoenzymes ; genetics ; metabolism ; Megestrol ; Multidrug Resistance-Associated Proteins ; genetics ; metabolism ; Norpregnadienes ; pharmacology ; Progesterone Congeners ; pharmacology ; RNA, Messenger ; drug effects ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Tumor Cells, Cultured ; Verapamil ; pharmacology

Objective: To investigate the clinical value of coefficient of variation ( RDW-CV) and standard deviation (RDW-SD) of erythrocyte distribution width in the diagnosis of colorectal cancer ( CRC) metastasis． Methods : 91 CRC inpatients were selected as the research subjects．According to whether the tumor was metastatic，they were divided into two groups : 61 cases in the non-metastatic group and 30 cases in the metastasis group．The laboratory indicators of the two groups of patients included : neutrophils count，lymphocyte count，platelet count，carcinoembryonic antigen，plasma prothrombin time，activated partial thromboplastin time，fibrinogen，thrombin time， RDW-CV and RDW-SD and other indicators．The t test was used to compare the means of the two groups，and the pearson correlation was used to analyze the relationship between RDW-CV and RDW-SD with neutrophil count， lymphocyte count，neutrophil count-lymphocyte count ratio (NLR) and carcinoembryonic antigen．Correlation coefficient，receiver operating characteristic curve ( ROC) to assess the area under the curve ( AUC) of RDW-CV， RDW-SD，carcinoembryonic antigen and their combined diagnosis in assessing CRC metastasis. Results: Compared with non-metastatic patients，the RDW-CV and RDW-SD values of metastatic patients were higher (both P < 0. 05) ．Both RDW-CV and RDW-SD levels were positively correlated with carcinoembryonic antigen content．Compared with the AUC of carcinoembryonic antigen in diagnosis of CRC metastasis，the AUC of RDW-CV or RDW-SD combined with carcinoembryonic antigen was higher． Conclusion RDW-CV and RDW-SD have potential clinical application value in differential diagnosis of CRC metastasis.