Objective To observe the effect and safety of metoprolol combined with indapamide in the treatment of hypertension patients with chronic heart failure (CHF).Methods 78 hypertension patients with CHF were given indapamide 2.5mg/d,metoprolol 6.25mg/d,1time/d,based on conventional anti-heart failure treatment,the double dose was given two weeks later.Then the dose was adjusted according to the patients' condition and the individual response.Blood pressure,heart rate and cardiac function were observed.Results Compared with before treatment,systolic blood pressure [(142.6 ±5.1)mm Hg vs (178.0 ±7.5) mm Hg],diastolic blood pressure[(91.3 ± 3.6)mm Hg vs (109.5 ± 4.2) mm Hg],heart rate [(76 ± 9) times/min vs (117 ± 11) times/min],LVEDVI [(133 ± 14)ml/m2 vs (164 ±21) ml/m2] and the LVESVI[(92 ± 10)ml/m2 vs (118 ± 17)ml/m2] were significantly reduced after treatment,and the differences were statistically significant (all P ＜ 0.05).Cardiac function was significantly improved,the total effective rate was 93.6％.Conclusion Metoprolol and indapamide combination therapy for hypertension patients with CHF has good efficacy,it is safe and worthy of clinical application.

B-ultrasonic manifestations of 65 cases of cryptorchlchsms including location and size as well as internal structure of tests are analysed.Among these seventy-four per cent cases Were con-firmed by operations.It is Considered that B-ultrasonic imaging has important diagnostic value for cryptorchidism.

Objective To study the effect of lactobacillus on serum histamine ,interleukin‐5(IL‐5) ,interleukin‐12(IL‐12) and tissue intercellular cell adhesion molecule‐1(ICAM‐1) on the rats of allergic rhinitis model .Methods Totally 48 male SD rats were randomly divided into control group ,model group ,Lactobacillus (LBA) group (1 × 1010 CUF/kg) and loratadine (LRD) group (5 mg/kg) ,there were 12 SD rats in each group .LBA Group administered once daily for a total of 6 weeks ;LRD group administered once daily for seven days .Then the clinical symptoms indexes ,the content of serum histamine ,IL‐5 ,IL‐12 ,the changes of tissue pathological ,the mRNA and protein of ICAM‐1 were compared .Results Lactobacilli can significantly improve symptoms score of allergic rhinitis in rats ,the pathological score ,reduce serum histamine ,IL‐5 levels ,ICAM‐1 mRNA and protein expression of tissue , and increase IL‐12 proportion ,thus it showed significant efficacy .Conclusion Long‐term (approximately six weeks) given lactoba‐cilli played a therapeutic role of allergic rhinitis by reducing serum histamine ,IL‐5 levels and ICM A‐1 expression in tissues ,in‐creased serum IL‐12 level .

Objective To observe the effect of metformin and exercise therapy for IGT. Methods 86 patients with IGT were given metformin and exercise therapy,the range of glucose,BMI and symptoms improvement were observed before and after the therapy. Results After 6 months therapy,the fasting blood glucose and 2 h after oral administration of 75 g glucose levels were significantly reduced(P＜0.01＝,BMI reduced(P＜0.05＝.72 cases (83.7%)were back to normal glucose tolerance,14 cases maintained IGT(those unable to adhere to exercise and no diet controlled),0 case became DM. Conclusion Metformin and exercise therapy had good efficacy in curing IGT.

BACKGROUND:How to obtain a sufficient number of cells is one of the key issues in the celltransplantation therapy, and studies have shown that stem cellproliferation can be promoted by reasonable stimulus.
OBJECTIVE:To investigate reduced glutathione effects on biological characteristics of human umbilical cord blood mesenchymal stem cells.
METHODS:The cells were divided into two groups:the control group consisted of the normal human umbilical cord blood mesenchymal stem cells, and in the experimental group, human umbilical cord blood mesenchymal stem cells were treated with 0.15 g/L reduced glutathione.
RESULTS AND CONCLUSION:At days 5, 7, 9, cells treated with 0.15 g/L reduced glutathione showed higher absorbance values than those in the control group (P<0.05). Flow cytometry showed reduced glutathione had no effects on CD29, CD44, CD45, CD105 expression. Real-time PCR results showed reduced glutathione was capable of promoting extracellular signal-regulated kinase mRNA expression (P<0.05). Findings from this study showed that 0.15 g/L reduced glutathione can promote the proliferation of human umbilical cord blood mesenchymal stem cells.

BACKGROUND:In recent years, studies have shown that mesenchymal stem cells can secrete various growth factors, and has certain application prospect in the treatment of liver fibrosis.
OBJECTIVE:To explore the different sources of mesenchymal stem cells in the treatment of liver fibrosis in rats. METHODS:Fifty Sprague-Dawley rats were given intraperitoneal injection of carbon tetrachloride to construct the model of liver fibrosis. Another 10 normal Sprague-Dawley rats were used as normal controls. Model rats were randomly divided into five groups, 10 rats in each group, including model control group, normal saline group, bone marrow mesenchymal stem cellgroup, umbilical cord mesenchymal stem cellgroup, and umbilical cord blood mesenchymal stem cellgroup. After 8 weeks of modeling, different sources of mesenchymal stem cells at a density of 2×106 were injected via tail vein into model rats. After 12 weeks, the rats were kil ed, and serum alanine aminotransferase, aspartate aminotransferase and albumin levels were detected as wel as the expression of type I col agen and glial fibril ary acidic protein in liver tissue was detected by fluorescence quantitative PCR method.
RESULTS AND CONCLUSION:We have successful y established the SD rat model of hepatic fibrosis. Bone marrow mesenchymal stem cells aggravated hepatic fibrosis, umbilical cord blood and umbilical cord mesenchymal stem cells could reduce the level of hepatic fibrosis in rats. Umbilical cord mesenchymal stem cells had the most obvious effect that significantly reduced expressions of alanine aminotransferase, aspartate aminotransferase and type I col agen and glial fibril ary acidic protein. The results showed different sources of mesenchymal stem cells have different effects on rat fibrosis. Bone marrow mesenchymal stem cells aggravate hepatic fibrosis, and umbilical cord and umbilical cord blood stem cells can al eviate hepatic fibrosis in rats.

Uncoupling protein 4 (UCP4) is a member of the multigenic uncoupling proteins (UCPs), specific expressing in the cerebral cortex and hippocampus. UCP4 plays an important role in Parkinson's disease, multiple sclerosis, epilepsy, stroke, brain trauma and other central nervous system diseases by uncoupling, decreasing mitochondrial membrane potential,regulating Ca2+ homeostasis and oxidative stress. This article reviews UCP4 and its roles in the central nervous system diseases in order to provide certain basis for the development of UCP4targeted medication.

Objective To develop a portable medical drop speed monitoring equipment which can conveniently control the drop speed in infusion.Methods Taking the monolithic integrated circuit of 89C51 as a core,such units were designed as the master control unit,keyboard input system,drop speed detection,drop speed control,digital display,acousto-optics alarm circuit and electromotor drive.All circuit module units were connected in monolithic integrated circuit.The gathering data were transferred to monolithic integrated circuit in the form of electrical signals.After the operation,analysis and processing,monolithic integrated circuit transferred the data to demonstration module,electrical machinery and acousto-optics alarm circuit through the outlet.Results Automatically controlling the drop speed according to the difference of drop speed,this equipment can reach the required drop speed in 5~10s and maintain this speed with an error of 12 drops per minutes.Conclusion Portable medical drop speed monitoring equipment achieves the goal of the task and meets the clinical requirement.This equipment is worthy of popularizing.

Objective To investigate the effects of propofol on mesenteric artery in SD rats and to observe whether the effect of propofol on the mesenteric artery relaxation is related to the gap. Methods Pressure myograph was used to examine the effect of 18β-GA and 2-APB on the relaxation induced by propofol 1×10 -7 ,3×10 -7 ,1×10 -6 ,3×10 -6 ,1 ×10 -5 ,3 ×10 -5 ,1 ×10 -4 and 3 ×10 -4 mol/L in acutely separated mesenteric arterioles of SD rat.Results The diameter of mesenteric arteri-oles were increased from (208.6±13.4)to (213.5±13.6),(21 9.7±13.2),(226.4±12.5),(234.9 ±12.3),(245.5±13.0),(267.4±1 5.2),(336.2±18.3)and (385.9 ±14.2)μm after application of 1×10 -7 ,3×10 -7 ,1 × 10 -6 ,3 × 10 -6 ,1 × 10 -5 ,3 × 10 -5 ,1 × 10 -4 and 3 × 10 -4 mol/L propofol,re-spectively.Propofol induced dilation of the rat mesenteric arterioles in a concentration-dependent man-ner (P < 0.01 ).After pretreatment with 18β-GA and 2-APB,1 × 10 -4 mol/L propofol induced dilation was absolutely decreased (P <0.01).Conclusion These results suggest that propofol relaxes mesenteric arterioles via gap junction.

Background and purpose:Breast cancer is one of the most common malignant diseases in women and its malignant proliferation is the major cause of death. To investigate the effects of N-myc downstream regulated gene 2 (NDRG2) on proliferation of breast cancer cells by using two parallel cell lines (MCF-7 and LM-MCF-7) with different metastatic abilities.Methods:The expression level of NDRG2 in breast cancer cells was detected by Western blot. The effects of overexpressing (or down-regulating) NDRG2 on proliferation of breast cancer cells were investigat-ed by lfow cytometry. The expression and location of β-catenin were detected by Western blot and immunolfuorescence respectively. NDRG2 blocking the transcription activity of β-catenin was investigated via co-transfecting MCF-7 cells with NDRG2 siRNA and pCMV-Tcfδ (lacking the portion responsible for the protein binding to DNA).Results:The expression level of NDRG2 was negatively related to the proliferation ability of breast cancer cells. Over-expressing NDRG2 (or down-regulating) via transfecting LM-MCF-7 (or MCF-7) cells with pCMV-NDRG2 (or NDRG2 siRNA) could inhibit (or promote) cell proliferation. Interestingly, the results of Western blot, immunolfuorescence and lfow cytometry revealed that down-regulation of NDRG2 resulted from the down-regulation of β-catenin and blocking its nuclear translocation, which led to losing control of the proliferation of breast cancer cells.Conclusion:NDRG2 inhibit the proliferation of breast cancer cells via down-regulating the expression of β-catenin and blocking its nuclear translo-cation, which is signiifcant for exploring the molecular mechanism of proliferation of breast cancer cells.