Objective: To observe the effects of interferon-induced protein 204 (p204) over-expression on apoptosis, proliferation and migration of aortic vascular adventitial ifbroblast (VAFs) in experimental rats.
Methods: Our research included in 3 groups: Iif204-Lv group, in whichVAFs were infected by Iif204-recombined lentivirus, Con-Lv group, in which VAFs carried the empty vector without virus, Blank control group, in which VAFs were untreated. VAFs proliferation was examined by MTT method, cell apoptosis was measured by lfow cytometry and the migration was detected by scratching assay and transwell chamber method. The mRNA and protein expressions of p204, p53 and p21were evaluated by real-time q RT-PCR and Western blot analysis respectively.
Results: Compared with Con-Lv and Blank control groups, Iif204-Lv group had decreased VAFs proliferation (by OD value) at 48 hours: (0.53 ± 0.05) vs (0.66±0.03) and (0.63 ± 0.06), at 72 hours: (0.89 ± 0.06) vs (1.02 ± 0.06) and (1.01 ± 0.07); distance of cell migration (by pixel): (61.00 ± 1.83) vs (74.50 ± 6.25) and (75.50 ± 7.85); number of cell migration: (61.75 ± 10.69) vs (155.25 ± 10.21) and (153.75 ± 9.40), allP<0.05. VAFs apoptosis rates were similar among different groups. Compared with Con-Lv and Blank control groups, Ifi204-Lv group presented up-regulated mRNA expressions of p204 (3.45 ± 0.15) vs (2.09 ± 0.10) and (2.06 ± 0.09); p53 (3.41 ± 0.09) vs (2.06 ± 0.07) and (2.10 ± 0.06); p21 (3.01 ± 0.08) vs (2.05 ± 0.06) and (2.11 ± 0.08), allP<0.05.
Conclusion: p204 over-expression inhibits VAFs proliferation and migration which might be partly related to the activation of p53 and p21 expression in experimental rats.

OBJECTIVETo explore a new method to correct secondary lip whistle deformities and nasal base depression after bilateral complete cleft lip (BCCL) repair with lip subdermal soft tissue flap.

METHODSBilateral subdermal soft tissue "C" flaps and "lambda" flap were designed to repair secondary deformities of nasal base and reconstruct vermilion tubercle in patients after BCCL repair.

RESULTSGood results were achieved in all the patients with primary healing. No flap necrosis happened. The result was satisfactory.

CONCLUSIONSWith bilateral subdermal soft tissue "C" flaps and " lambda" flap, nasal base depression deformities and lip whistle deformities can be corrected. It is an ideal method for correction of deformities after BCCL repair.

Cleft Lip ; surgery ; Humans ; Lip ; surgery ; Nose ; Nose Deformities, Acquired ; surgery ; Reconstructive Surgical Procedures ; Surgical Flaps ; Treatment Outcome ; Wound Healing

Objective To investigate the effect of interferon alpha ( IFN-α) on apoptosis of vascular smooth muscle cells ( VSMCs) in rats and the related mechanism. Methods The cells were divided into three group:group A, group B and group C.Group A was transfected with nonspecific siRNA, group B was intervened with IFN-α and transfected with nonspecific siRNA, and group C was intervened with IFN-α and transfected with IFI204 siRNA. All the cells were cultured for 48 h. The expression of P204 mRNA was determined by semiquantitative reverse transcription polymerase chain reaction (RT-PCR).P204, RAS protein levels, and phosphorylation levels of RAF and ERK were analyzed by Western blotting. The cell apoptosis was analyzed by flow cytometry with Annexin-V FITC/PI method. Results As compared with group A, the expression of P204 mRNA and protein in group B was up-regulated (P<0.05), the cell apoptosis was increased (P<0.05), in the process of the above, the expression of RAS protein was decreased ( P<0.05) and the phosphorylation levels of RAF and ERK were dropped (P<0.05).In group C, the expression levels of P204 mRNA and protein were down-regulated (P<0.05), and cell apoptosis was decreased ( P<0.05) , the expression of RAS protein and the phosphorylation levels of RAF and ERK were increased ( P<0.05) . Conclusion P204 and RAS signal pathway participates in IFN-α regulation of apoptosis of VSMCs in rats.

BACKGROUND: Intravenous transplantation has been regarded as a most safe method in stem cell therapies. There is evidence showing the homing of bone marrow stem cells (BMSCs) into the injured sites, and thus these cells can be used in the treatment of acute myocardial infarction (MI). This study aimed to investigate the effect of intravenous and epicardial transplantion of BMSCs on myocardial infarction size in a rabbit model. METHODS: A total of 60 New Zealand rabbits were randomly divided into three groups: control group, epicardium group (group I) and ear vein group (group II). The BMSCs were collected from the tibial plateau in group I and group II, cultured and labeled. In the three groups, rabbits underwent thoracotomy and ligation of the middle left anterior descending artery. The elevation of ST segment>0.2 mV lasting for 30 minutes on the lead II and III of electrocardiogram suggested successful introduction of myocardial infarction. Two weeks after myocardial infarction, rabbits in group I were treated with autogenous BMSCs at the infarct region and those in group II received intravenous transplantation of BMSCs. In the control group, rabbits were treated with PBS following thoracotomy. Four weeks after myocardial infarction, the heart was collected from all rabbits and the infarct size was calculated. The heart was cut into sections followed by HE staining and calculation of infarct size with an image system. RESULTS: In groups I and II, the infarct size was significantly reduced after transplantation with BMSCs when compared with the control group (P<0.05). However, there was no significant difference in the infarct size between groups I and II (P>0.05). CONCLUSION: Transplantation of BMSCs has therapeutic effect on MI. Moreover, epicardial and intravenous transplantation of BMSCs has comparable therapeutic efficacy on myocardial infarction.

Objective To detect the mutations of ATP2C1 gene in patients with Hailey-Hailey dis- ease (HHD).Methods PCR and direct sequencing were performed in 17 patients and 120 healthy controls to screen the mutations in the exons of ATP2C1 gene.Results Eight mutations were identified in nine probands, including three deletion mutations (nt1464-1487 del/nt1462-1485del,1523delAT,2375delTTGT),three splice site mutations (360—2A→G,1415—2A→T,2243+2T→C) and two missence mutations (C920T and G1942T).None of the above mutations was found in the controls.Conclusion Eight specific novel mutations were identified in nine probands of HHD,which could be causative factors of the disease.

To explore the new pattern of Chinese medicine solid preparations (CMSP) in vitro dissolution, a method testing the bio-thermal activity in combination with UPLC was used. Microcalorimetry was used to obtain the characteristic metabolic growth power-time curves and a series of biothermodynamic parameters of the inhibition of Staphylococcus aureus by Yinhuang tablet dissolving solutions at the pH 6.8 (phosphate buffer) dissolution medium at different times. From these results, the cumulative dissolution of Yinhuang tablet based on bio-thermal activity was obtained. The dissolution rates of two components of chlorogenic acid and baicalin were determined by UPLC method. Then f2 similar factor method was used to evaluate the relevance of these two methods. The result showed that f2 values all were more than 50, indicating that there is a good correlation between the two methods of measuring the dissolution rate. It is feasible to determine CMSP in vitro dissolution by using bio-thermal activity, and to provide new evaluation methods for controlling the quality of CMSP.
Calorimetry ; methods ; Chlorogenic Acid ; chemistry ; pharmacology ; Chromatography, Liquid ; methods ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Flavonoids ; chemistry ; pharmacology ; Quality Control ; Solubility ; Staphylococcus aureus ; drug effects ; physiology ; Tablets ; Thermodynamics

To compare the microcalorimetric fingerprint profiles of Lonicerae japonicae Flos (Lj.F) and Lonicerae Flos (L.F), microcalormietry was applied to find the heat change regularity of Bacillus shigae (B. shigae) metabolism affected by Lj.F and L.F (we choose Lonicera macranthoides Hand.-Mazz in this paper) with different concentrations. The thermogenic curves and thermodynamics parameters were investigated as evaluation index, and then the date of experiment was studied by similarity analysis. All the results indicated that the Lj.F and Lonicera macranthoides Hand.-Mazz (L.m.H-M) significantly impacted the microbial growth and had good similarity in its inhibitory activities. The combination approach of chemical analysis with bioassay was developed and employed to ensure the safety and efficacy of Chinese herbal medicines.
Anti-Bacterial Agents ; isolation & purification ; pharmacology ; Bacillus ; drug effects ; growth & development ; Calorimetry ; methods ; Chemical Safety ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Flowers ; chemistry ; Lonicera ; chemistry ; classification ; Plants, Medicinal ; chemistry ; classification ; Quality Control ; Thermodynamics ; Thermogenesis

OBJECTIVETo investigate the effects of Newcastle disease virus (NDV) infection on the expression of survivin and cell cycle in human tongue squamous carcinoma TSCCa cells.

METHODSThe proliferation of TSCCa cells infected with NDV in vitro was evaluated by means of MTT assay, and survivin expression in the infected cells was detected using RT-PCR and Western blotting. Flow cytometry was performed to assess the changes in the cell apoptosis, cell cycle and cell proliferation index (PI) of the cells.

RESULTSNDV infection resulted in decreased survivin expression and increased apoptosis of TSCCa cells, with reduced cell percentage in G2/M and S phases and lowered PI of the cells, showing significant differences from those of the negative control cells (P<0.05).

CONCLUSIONNDV infection can inhibit survivin expression, affect the cell cycle of TSCCa cells and induce their apoptosis.

Apoptosis ; physiology ; Blotting, Western ; Carcinoma, Squamous Cell ; metabolism ; pathology ; virology ; Cell Cycle ; physiology ; Cell Line, Tumor ; Host-Pathogen Interactions ; Humans ; Inhibitor of Apoptosis Proteins ; Microtubule-Associated Proteins ; biosynthesis ; genetics ; Newcastle disease virus ; physiology ; Reverse Transcriptase Polymerase Chain Reaction ; Tongue Neoplasms ; metabolism ; pathology ; virology

Objective To study the role of pancreatic renin-angiotensin system (RAS) on insulin secretion, proliferation, apoptosis, oxidative stress, and fibrosis of β-cells. Methods The effect of angiotensin Ⅱ on βTC3 cells was studied and the role and mechanism of AT1 R were analyzed with RNAi technology. The expression of AT1 R was measured by Western Blotting. The change of intracellular calcium was detected by microfluorimetry with Furo3-1oaded cells. Peroxide-sensitive fluorescent probe DCFH-DA was used to analyze intracellular ROS by flow cytometry. Real-time PCR was performed to evaluate mRNA levels related to proliferation and fibrosis in βTC3 cells. Apoptosis was detected by flow cytometry and Tunel method. Results Insulin secretion was significantly increased up to four fold and the level of intracellular calcium was sharply increased in response to high glucose in βTC3 cells. Angiotensin Ⅱ has no direct effect on insulin secretion in βTC3 cells and its role in secretion was associated with the role in proliferation. Oxidative stress in βTC3 cells caused by angiotensin Ⅱ may be partially mediated through AT1R, protein kinase C and NAD(P) H. With the decrease of AT1R expression by RNAi technology, apoptosis, and fibrosis of βTC3 cells induced by angiotensin Ⅱ might be ameliorated.Conclusions By means of AT1R, angiotensin Ⅱ plays an important role in insulin secretion, proliferation,apoptosis, oxidative stress and fibrosis in β-cells.

Objective To find out the iodine nutritional status of children in Xiamen island, and to provide the scientific basis for iodine supplimentation. Methods On March 2010, thyroids of all children aged 6to 12, from primary school on the Xiaodeng island of Xiamen were examined by palpation, urinary iodine, iodine content of salt athome and IQ level were tested, and were collected 20 households, iodine content of drinking water was tested randomly. Results IQ testing and thyroid palpation were carried out among a total of 156 children, the goiter rate of children was 1.28% (2/156), the mean IQ was 110; 154 urine samples were taken, the median urinary iodine was 219.1 μg/L; a total of 153 salt samples were tested, and the qualified rate of iodized salt was 87.58%(134/153), and the mean iodine content in the tap water was 4.52 μg/L Conclusions Iodine nutritional status of the island residents is better, and there are no such problems as excessive iodine.