ObjectiveTo establish the human periodontal ligament fibroblasts(HPDLFs)that express BMP2 and observe their biologicl characterization. MethodsA phagemid expression vector for BMP2 (pBK-B2) was transfected into HPDLFs by using LipofectAMINE. The BMP2 expression was determined by the immunohistochemical ABC method. The alkaline phosphatase (ALP) activity, osteocalcin (OC) production and capacity of mineralization were measured in the transfected cells. ResultsBMP2 protein was expressed in HPDLFs after gene transfection. The BMP2 gene transfected cells showed prominently elevated ALP activity, OC production and increase in mineralized nodules. ConclusionThe results indicate that BMP2 is expressed in HPDLFs and is involved in inducing differ- entiation of HPDLFs into osteoblast-like cells.

S100A4, a member of S100 superfamily of Ca~(2+)-binding proteins, is a polypeptide containing 101 amino acids. S100A4, which is overexpressed in most tumor cells, plays pivotal roles in growth, invasion and migration of tumor by regulating cell cycle progression, differentiation, apoptosis, invasion and metastasis of cells. This article reviews S100A4′s structure, function and potential application as the new target in the therapy of tumors.

Child ; Fructose ; administration & dosage ; analogs & derivatives ; therapeutic use ; Humans ; Male ; Status Epilepticus ; drug therapy

Objective To unveil the current situation and bends of Keshan disease in Pingliang city of Gansu province, to evaluate the outcome of related prevention and control measures, and to provide scientific basis for further prevention and treatment of the disease. Methods According to the "the central allowance local public health special funds endemic disease prevention programs grams mountain monitoring programme" and "the diagnostic criteria for Keshan disease" (GB 17021-1997), between 2007 and 2009, local residents from nine monitoring points in Pingliang city of Gansu province were clinically examined, and electrocardiography(ECG) tracings and Xray were taken of suspected cases. Corn, wheat samples and hair samples of children, adults and women were collected, and selenium content of these samples was determined by 2.3-2-amino-naphthalene fluorescence method. Results A total of 5846 residents were surveyed in 3 years, 247 cases of Keshan patients were detected, with a detection rate of 4.23%(247/5846), of which potential cases of Keshan disease 214, the detection rate was 3.66% (214/5846); chronic Keshan disease 33 cases, the detection rate was 0.56% (33/5846); no acute type and subacute Keshan disease detected. A total of 764 abnormal ECG cases were detected, and abnormal detection rate was 13.07%(764/5846). Two hundred and seven cases of suspected patients were examined by chest X-ray, 80 cardiac enlargement cases were detected, the detection rate was 38.6% (80/207). The 262 hair samples of children, adults and women were analyzed, hair selenium was (0.279 ± 0.098)mg/kg. Of the 9 corn and 31 wheat samples collected, corn selenium was (0.0079 ± 0.0029)mg/kg; wheat selenium was (0.0104 ± 0.0078)mg/kg. Conclusions Overall Keshan disease is in a stable and subsided trend in Pingliang city of Gansu province, but there are still a number of potential chronic types, sporadic new cases, suggesting that the disease monitoring, comprehensive prevention and treatment of the patients are the focus.

OBJECTIVETo observe the effect of Liuweidihuang Pills in relieving cellphone electromagnetic radiation-induced histomorphological abnormality, oxidative injury, and cell apoptosis in the rat testis.

METHODSThirty adult male SD rats were equally randomized into a normal, a radiated, and a Liuweidihuang group, the animals in the latter two groups exposed to electromagnetic radiation of 900 MHz cellphone frequency 4 hours a day for 18 days. Meanwhile, the rats in the Liuweidihuang group were treated with the suspension of Liuweidihuang Pills at 1 ml/100 g body weight and the other rats intragastrically with the equal volume of purified water. Then all the rats were killed for observation of testicular histomorphology by routine HE staining, measurement of testicular malondialdehyde (MDA) and glutathione (GSH) levels by colorimetry, and determination of the expressions of bax and bcl-2 proteins in the testis tissue by immunohistochemistry.

RESULTSCompared with the normal controls, the radiated rats showed obviously loose structure, reduced layers of spermatocytes, and cavitation in the seminiferous tubules. Significant increases were observed in the MDA level (P < 0.01) and bax expression (P < 0.01) but decreases in the GSH level (P < 0.01) and bcl-2 expression (P < 0.01) in the testis issue of the radiated rats. In comparison with the radiated rats, those of the Liuweidihuang group exhibited nearly normal testicular structure, significantly lower MDA level (P < 0.05), bax expression (P < 0.01), and bcl-2 expression (P < 0.01).

CONCLUSIONLiuweidihuang Pills can improve cellphone electromagnetic radiation-induced histomorphological abnormality of the testis tissue and reduce its oxidative damage and cell apoptosis.

Animals ; Apoptosis ; drug effects ; radiation effects ; Body Weight ; drug effects ; radiation effects ; Cell Phone ; Drugs, Chinese Herbal ; pharmacology ; Electromagnetic Radiation ; Glutathione ; metabolism ; Male ; Malondialdehyde ; metabolism ; Oxidative Stress ; Radiation-Protective Agents ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Seminiferous Tubules ; drug effects ; radiation effects ; Spermatocytes ; drug effects ; metabolism ; radiation effects ; Staining and Labeling ; Testis ; drug effects ; metabolism ; pathology ; radiation effects

Objective To observe the effect of Manzhi Kechuan Ling(MKL)on pulmonary function and quality of life (QOL)of patients with chronic obstructive pulmonary disease (COPD)at stationary stage.Methods Seventy-six COPD patients were randomized into two groups.The treatment group (N=40)received oral use of MKL (mainly composed of Radix Ginseng,Radix Astragali,Rhizoma Atractylodis Macrocephalae,Colla Cornus Cervi,Placenta Hominis,Gecko,Semen Juglandis,Gecko,Fructus Perillae,Bulbus Fritillariae Cirrhosae,Rhizoma Pinelliae)for 6 months,and was followed up for another 6 months after suspension of medication.The control group (N=36)did not receive any medication.The pulmonary function,TCM syndrome scores,QOL scores and annual acute attack times were examined before treatment,6 and 12 months after treatment.Meanwhile,artery blood gas analysis was performed before treatment and 6 months after treatment.Results Inthe treatment group,the pulmonary function indexes of forced expiratory volume in one second (FEV1)andforced vital capacity (FVC)were improved 6 months after treatment (P0.05).In the control group,FEV1 and FVC presented a decreasing trend 6 and 12 months after treatment,and FEV1 and FCV 12 months after treatment differed from those before treatment (P0.05).There showed statistical differences of PaO2 and PaCO2 between the two groups 6 months after treatment(P

? AlM: To evaluate the efficacy of the method of vitrectomy combined with posterior sclera reinforcement for retinal detachment due to macular hole in high myopia.
?METHODS:From January 2012 to December 2013, in 45 eyes of 45 high myopic patients with retinal detachment due to macular hole, 28 eyes were in group A of vitrectomy with posterior sclera reinforcement and 17 eyes were in group B of vitrectomy. Preoperative examinations included visual acuity, intraocular pressure, indirect ophthalmoscopy and OCT were performed. ln follow - up 6 to 12mo, postoperative examinations of visual acuity, OCT were performed and effects of retinal reattachment and macular hole closure were compared between the two groups.
?RESULTS: ( 1 ) Postoperative examinations: visual acuity was 1. 19±0. 39 in group A and 1. 51±0. 34 in group B. The differences were statistically significant(P<0. 05). (2) The retinal reattachment rate was 100% in group A and 88. 24% in group B. There was no statistical significance between them(P>0. 05). (3) The macular hole closure rate was 82% in group A and 53% in group B. The differences were statistically significant(P<0. 05).
? CONCLUSlON: The treatment of vitrectomy with posterior sclera reinforcement is safe and feasible, which could improve visual acuity and increase the rate of macular hole closure in treating retinal detachment due to macular hole in high myopia.

Objective To analyze diagnostic experience of children with anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) and assess its surgical results.Methods Six children with ALCAPA had been diagnosed in our hospital from Mar. 2006 to Oct.2007 aged from 6 months to 10 years old(median 43.5 months).The medical data included common clinical presentations,the findings of electrocardiogram(ECG),the echocardiogram,ECG-gated 64-slice computed tomography,the digital subtraction angiogram (DSA),surgical records and the outcome.Results Diaphoresis,fantod,breathlessness and difficult feeding were commonly presented in 5 cases ALCAPA and the 5 children presented with left ventricular failure in infancy.The predominant ECG findings were Q waves and ST segment changes in the anterolateral chest leads in 4 cases,ST changes in 1 case,and normal ECG in 1 case.Cross-sectional echocardiography showed dilated left ventricles with poor contractility in 4 cases,medium mitral regurgitation in 2 cases and severe mitral regurgitation in 2 cases,aneurysmal dilatation of the right coronary artery(RCA) in 2 cases.CT and DSA examinations showed characteristic changes in these children.The surgical reestablishment of a two-coronary system was performed in 5 cases,direct reimplantation in 2 cases and creation of an autologous extrapulmonary tunnel in 3 cases.Simultaneous mitral annuloplasty was performed in 2 cases.After operation,the symptoms of 5 cases were all improved and none died.Conclusions Understanding the clinical manifestations and lab findings of ALCAPA is helpful to making an early diagnosis of ALCAPA.Early surgical treatment can improve the patients′ outcome.

Objective To investigate the immunological reaction,serum and liver ?-L-iduronidase(IDUA) activity after human fetal liver cells(FLCs) transplantation therapy on mucopolysaccharidosis(MPS) which attribute to IDUA defect.Methods FLCs were transplanted into IDUA deficiency mice.T cell subsets(CD3,CD4 and CD8) was detected by flow cytometry,while IL-2,TNF-? and IFN-? by ELISA,and serum and liver IDUA activity by fluorospectrophotometer at different stage(before transplantation and 5,10,15 days after transplantation).Results Human FLCs survived in IDUA deficiency mice,bringing elevated serum and liver enzyme activity to receptor.T cell subsets,IL-2,TNF-? and IFN-? was significantly higher 5,10 and 15 days after transplantation than those before transplantation(P

Objective:To compare the effect of ordinary Guipiwan and Ultra-micro Guipiwan on the rat models of both qi and blood defi ciency.Methods:Rat models of both qi and blood defi ciency,induced by re1easing blood and intraperitoneal injections of cyclophosphamide,were divided into model group,high,middle,and low dosage ultra-micro Guipiwan solution groups,ordinary Guipiwan solution group and blank control group.Drugs were given once a day intragastrically,successively for 14 days.At the end of the experiment,the countings of red cells,white blood cells,platelet,hemoglobin and the levels of granulocyte-macrophage colony stimulating factor in serum and were measured.Results:Ultra-micro Guipiwan increased the levels of blood cells,platelet,hemoglobin and the levels of granulocyte-macrophage colony stimulating factor in serum of the rats with both qi and blood defi ciency,the effect was better than Guipiwan(P