Objective To observe the effects of porous polylactic acid/polyglycolic acid copolymer(PLGA) filling into extraction socket on the regeneration of alveolar bone in rats.Methods Sixty male Wistar rats were divided into experimental group and control group(n=30).PLGA scaffold was immediately implanted in the mandibular incisor root sockets after removal of incisor teeth.Soft X-ray photography,structural observation,light microscopy were used to evaluate the effects of composite on bone healing in a rat tooth extraction socket.Results The relative lengths of residual alveolar ridge in the experimental group 4,8 weeks after operation were shorter than that in the control group,and there were significant differences between the experimental group and the control group(P

Objective Preparing platelet rich gel through two-times centrifugal technique and co-culturing chondrocytes with PRG, then observing the proliferation and gene expression of chondrocytes, in order to provide a favorable way to prepare tissue engineering cartilage. Methods Centrifugating venous blood of rabbit through two-times centrifugal technique to obtain platelet rich plasma( PRP) ,then detecting the concentration of various growth factor in PRP. Admixing PRP with chondrocytes of rabbit and activating them with activator. After co-culti-vation,the proliferation of chondrocytes through MTT method and expression of ACAN,CollagenⅡand SOX-9 through realtime-PCR were ob-served,and compared with common cultured chondrocytes. Results The concentrations of PDGF-AB,TGF-β1,IGF-1 and VEGF in PRG were significantly higher than those in blood(P<0. 05). After co-cultivation, the proliferation rate of chondrocytes and the expression of ACAN,Collagen Ⅱ and SOX-9 were significantly higher than that of common cultured chondrocytes(P<0. 05). Conclusion Co-culturing chondrocytes with PRG is able to promote the proliferation and gene expression of chondrocytes. We considered that it is a excellent method to construct tissue engineering cartilage.

Objective To investigate the relationship between carotid atherosclerotic plaque and multiple risk factors of angiocardiopathy,and to evaluate the injuries caused by different risk factors to subclinical target organ to control the general risk factors of angiocardiopathy.Methods Four hundred and twenty six outpatients and impatients,treated in our hospital from May 2007 to May 2009 with the results of color ultrasonic examination,were divided into carotid atherosclerotic plaque group(284 cases) and no carotid atherosclerotic plaque group( 142 cases).The clinical information including their age,body mass index,smoking condition,past medical history such as hypertension,diabetes mellitus and hyperlipoidemia were recorded,and the levels of total cholesterol(T C),high density lipoprotein cholesterol( HDL-C),low density lipoprotein cholesterol(LDL-C),triglyceride (TG),lipoprotein ( a ) ( LP (a) ),apolipoprotein A - 1 ( Apo A 1 ),apolipoprotein B ( Apo B ),highsensitivity C-reactive protein( hs-CRP),homocysteine ( HCY),microalbuminuria( MAU ) and uricacid(UA) were determined by lab tests.The independent variable and univariable data were processed and analyzed statistically to find out the risk factors of carotid atherosclerotic plaque.Results Age and drinking were significantly correlated with the carotid intima-media wall thickening(IMT) (P ＜ 0.001 ).Overweight,diabetes mellitus,increased LP (a),hyperlipoidemia,age,increased MAU and HCY could independently predict carotid atherosclerosis and plaque formation ( x2 =71.35,38.45,t =3.26,x2 =37.23,t =118.51,6.723 and 3.17respectively,Ps ＜ 0.05 ).The aggregated number of the risk factors was correlated to IMT and carotid atherosclerotic plaque ( P =0.0001 ).Conclusion Age,drinking,overweight,diabetes mellitus,increased LP (a),hyperlipoidemia,MAU and HCY are risk factors of carotid atherosclerosis and plaque formation,and the contribution of each factor can multiply and overlap,more risk factors means greater risk.

Adolescent ; Adult ; Aged ; Allergens ; immunology ; Animals ; Child ; Female ; Humans ; Male ; Middle Aged ; Pyroglyphidae ; immunology ; Rhinitis, Allergic, Perennial ; therapy ; Treatment Outcome ; Vaccines ; immunology ; therapeutic use ; Young Adult

Total RNA was extracted from leaf of Suaeda hetroptera kitag, then the CMO ( choline monooxygenase) cDNA was amplified using the reverse transcriptase polymerase chain reaction ( RT-PCR) method and cloned into pMD-T-simple vector. The positive clones from the Blue/White Screen were sequenced. After confirming its validity, the CMO gene fragment was cloned into pBI121 vector. Double enzyme restriction and PCR analysis indicated that the pBI121/CMO recombinant plasmid was successfully constructed.

Colectomy ; Colonic Neoplasms/surgery* ; Colonoscopy ; Humans ; Lymph Node Excision ; Lymph Nodes/pathology* ; Robotic Surgical Procedures

OBJECTIVETo explore the relationship between HBV genotypes distribution in hepatitis B patients and clinical manifestations in Beijing area.

METHODS200 HBsAg positive serum were choosen from 1148 serum samples. useing of nested PCR amplification method, HBV DNA S genes were Sequencing and typing; genotype distribution and the relationship with the clinical manifestation were Statistical analysis.

RESULTSIn Beijing area, HBV has B, C, D three genotypes, including B gene type 17 cases (12. 5%), C genotype 116 cases (85.2%), D genotype 3 cases (0.02%); in the carriers, patients with chronic hepatitis B, cirrhosis, liver cancer, B type have been gradually falling, C type have been gradually rising trend.

CONCLUSIONSerious liver disease relate with C type, B type patients with HBV infection is better than C type patients in clinical prognosis and antivirus treatment response.

Adolescent ; Adult ; Aged ; DNA, Viral ; blood ; genetics ; Female ; Genotype ; Hepatitis B virus ; genetics ; Hepatitis B, Chronic ; blood ; virology ; Humans ; Liver Cirrhosis ; blood ; virology ; Liver Neoplasms ; blood ; virology ; Male ; Middle Aged ; Young Adult

No abstract available.
Sterilization, Tubal*

Objectives To evaluate final adult height(FAH), lipid profile, sexual development, and quality of life in individuals with childhood-onset growth hormone deficiency (CO-GHD) during the transition from childhood to adulthood, to reassess the function of GH-IGF-I axis, and to explore effective managements for different types of GHD in each period. Methods Totally 80 CO-GHD patients were divided into 2 groups; 22 patients with isolated growth hormone deficiency ( IGHD) and 58 patients with multiple pituitary hormone deficiencies (MPHD); 62 male (age ≥18 years) and 18 female ( age ≥ 16 years) patients. The clinical and biochemical parameters, education and occupation, rhGH, and other hormones therapy in the past were followed up. Results rhGH replacement improved FAH of patients with GHD. The incidences of either hyperlipidemia (39.0% , 47.4%) or fatty liver disease (26.8%, 31.6%) showed no statistically significant changes between 2 groups with and without rhGH replacement. Mean value of IGF-I SDS was significantly higher in IGHD group than that in MPHD group (-1.43±0. 31,-3. 01 ±0. 66) ,and also IGFBP3(-2. 10±0. 33,-3. 17±0. 19,all P< 0.05 ). Patients with IGHD had normal sexual development, but the incidence of sexual dysfunction accounted for 79.7% in MPHD group. Conclusions rhGH improves FAH of individuals with CO-GHD. Patients with CO-GHD should be followed during the transition period; GHD patients carry a high risk of metabolic abnormalities in the adulthood; IGHD female can give birth to offsprings; patients with MPHD have gonadotrophin deficiency of varying degrees.

Objective To evaluate the accuracy and reliability of Diana automated blood grouping analyzer in blood grouping and cross matching.Methods 2 300 patients′ABO and RhD blood groups were examined by conventional tube test and the fully auto-mated blood grouping analyzer and 900 patients′samples were tested using Diana automated blood grouping for blood cross matc-hing,and it was compared with polymatching method.Results The analyzer′s accuracy rate of blood grouping by two methods were 99.87% and 100.00%.The incompatibility occurred in 30 specimens in automatic blood type instrument,in 3 specimens in manual polymatching method.Conclusion The results of Diana automated blood grouping analyzer used for blood grouping and cross matc-hing blood testing are reliable.Its experimental operation is normalized and standardized with an advantage of low incidence of human er-ror.Moreover,the experimental results can be permanently preserved,which provides a convenience to search for medical proof.