Objective:To study the expression of cbf?1 on mouse MDPC-23 cell line,and discuss the role of cbf?1 in the regulation of dental embryo development. Methods:By transient transfection,immunofluorescence,and western blot,the expression of cbf?1 on mouse MDPC-23 cells were studied. Results:The control MDPC-23 cells didn't express cbf?1.After transient transfected for 48 h,cbf?l expression was significantlly increased.BMP_(2)could induce low level expression of cbf?1. Conclusion:cbf?l expression was significantly increased 48h after transient transfection.

Limb allotransplantation is an important procedure for reconstruction of limb defects.This review describes the history and development of this method,and expects to bring extremity transplantation closer to being a realistic possibility.

Cartilage lesions resulting from acute or chronic injury are one of the major factors leading to joint disease and disability ,and eventually osteoarthritis. It is well known that articular cartilage in adults has a limited ability for self-repair,and represent a clinical management challenge. Numerous methods have been devised to augment its natural healing response. The most appropriate treatment option for an individual patient should be based on the pathologic characteristics of the lesion and the patient's symptoms, age and expectations. This review presents the current articular cartilage management and the direction in future therapeutic regimens.

Damaged articular cartilage has a limited intrinsic capacity to heal itself,especially in adults,It represents a clinical challenge.Novel gene therapy can introduce particular beneficial gene into the seeded sells and express growth factors or other therapy proteins at the repair site.Gene therapy focuses on selecting proper gene,target cells and the transferring systems. The tissue engineering cartilage with gene-modified seeding cells and transferring objective gene to target sells locally present new therapeutic regimens for repairing defects in articular cartilage.

The effect of Lycii Cortex on the PCOS rat model and the mechanism of action were investigated in the present study. The PCOS rat model was induced with Poretsky methods. Then the rats were randomly divided into four groups: the model group, melbine group (0.45 g x kg(-1)), low (2.5 g x kg(-1) and high (10 g x kg(-1)) dosage group of Lycii Cortex. The animals were orally administrated with the drugs for 14 days. In addition, another control group was added in this study. The rats were weighted before and after drug treatment. After 14 days treatment, oestrous cycle of rats were detected; blood serum was separated to determine T and FINS and rat's uteri were isolated. The mRNA and protein (total and phosphorylated) expressions of PI3K and PKB in uteri were measured with Real-time RT-PCR and Western blot, respectively. Compared with the control rats, the body weight gain and serum level of T and FINS were significantly increased. While, the mRNA and protein (phosphorylated) levels of PI3K and PKB were markedly decreased in PCOS group. Lycii Cortex treatment significantly decreased the body weight gain and serum level of T and FINS in a dose-dependant manner. It also markedly increased the mRNA and protein (phosphorylated) expressions of PI3K and PKB. Meanwhile, the melbine treatment also showed the curative effect. Lycii Cortex can relieve the symptoms of PCOS and the mechanism might be related to PI3K/PKB pathway.
Animals ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Lycium ; chemistry ; Phosphatidylinositol 3-Kinases ; genetics ; metabolism ; Phosphorylation ; drug effects ; Polycystic Ovary Syndrome ; drug therapy ; enzymology ; genetics ; Proto-Oncogene Proteins c-akt ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Signal Transduction ; drug effects

Objective: To observe effects of different sulfonylurea compounds on expression of sulfonylurea receptor 2 (SUR2) in myocardium of the Goto-Kakizaki (GK) rats. Methods: Spontaneous diabetic GK rat models were divided into 6 groups: the diabetes model group, the Glibenclamide group, the Glipizide group, the Gliclazide group, the Glimepiride group and the positive control group(treated with insulin), with 12 rats in each group. A normal control group was also set up for comparison. The expression of SUR2 in myocardium of the GK rats was investigated by radioligand binding assay. SUR2 mRNA expression in the myocardial cells of rats was detected through reverse transcriptase-polymerase chain reaction (RT-PCR). Results: Twelve weeks later, no significant difference was found in the SUR2 receptor density(Bmax)and affinity(Kd) between the sulfonylurea treated groups and the other 3 groups (P>0.05). There was no significant difference in SUR2 mRNA expression between the diabetic, insulin-treated diabetic and control groups(P>0.05). Cardiac SUR2 mRNA levels were not significantly different between sulfonylureas-treated diabetic and non-treated diabetic rats (P>0.05). Conclusion: The diabetes itself does not affect the sulfonylurea receptor(SUR2) expression in myocardial tissues. Sulfonylureas at treatment dosage have no effect on receptor expression of SUR2.

The stress resistance of Saccharomyces cerevisiae industrial strains for molasses to high-concentration ethanol,high temperature,high osmotic pressure,furfural toxicity,phenol toxicity,acetic acid toxicity and G418 toxicity were analyzed by the spot dilution growth assays in this paper. The results showed that the stress resistances among these industrial strains were obviously different. The strains AS2.1189 and AS2.1190 are more resistant to the tested stress factors than any others .The strain 396 is the most resistant to the acetic acid toxicity and G418 toxicity,and the strain 2610 is the most resistant to the high temperature.

Teaching hospital plays a central role in training excellent doctor.Clinical teaching secretaries act as the advisor,coordinator,logistics people and supervisor in hospital clinical teaching management.Their duties include helping leader form and fulfill teaching plan,collect and arrange teaching records.To better accomplish the teaching secretarial job,a clinical teaching secretary should keep improving professional quality and personal comprehensive ability,ameliorating working methods and enhancing innovative thinking in a sound managing and evaluating system.

BACKGROUND:The coagulation function of patients after joint replacement is enhanced during the perioperative time, the coagulation disorder can easily lead to the deep vein thrombosis, which wil seriously affect the rehabilitation and prognosis of patients. The embolus fal ing off from venous thrombosis can lead to acute pulmonary embolism, severe cases can be life-threatening. So the early diagnosis of postoperative deep vein thrombosis and acute pulmonary embolism is very important.
OBJECTIVE:To review the research progress of clinical diagnosis of thrombosis in the perioperative patients after orthopaedic joint replacement.
METHODS:A computer-based retrieve in PubMed database and CNKI database were conducted by the first author for the articles on the clinical diagnosis of thrombosis in the perioperative patients after orthopaedic joint replacement from January 2008 to May 2013 with the key words of“arthroplasty, deep venous thrombosis, pulmonary artery embolism, risk factor, diagnostic approach, anticoagulant, perioperative period, research progress”in English and Chinese. A total of 165 articles were screened out, and final y 50 articles were included according to the inclusion criteria.
RESULTS AND CONCLUSION:After joint replacement surgery, various risk factors were associated with the etiology and pathogenesis of deep venous thrombosis, such as vascular and tissue impairments, limb fixation, pain stress, and hemorrhagic fluid caused coagulation disorder, were the main reasons to thrombosis. Deep vein thrombosis and pulmonary embolism had variety of clinical manifestations, many diagnostic approaches were widely applied in clinic, but each one has its laminations. So the positive diagnosis intervention should be performed according to the common clinical manifestations, general y begin from the routine examinations of ultrasound and electrocardiogram, and the combination of various methods was preferred if necessary in order to increase the positive diagnosis rate to the maximum extent, and take drug intervention immediately after diagnosis to avoid the happening of adverse events. Several new types of oral anticoagulants appear in clinical trials, and the outcomes are very promising, but the widely clinical application needs further observation.

Wnt/β-catenin signaling pathway is highly conserved in evolution,which involves in the regulation of a variety of biological processes such as embryonic growth,development,energy metabolism and stem cells maintenance.Aberrant activation of Wnt/β-catenin signaling pathway has a closely relationship with tumorigenesis.Investigating the role of Wnt/β-catenin signaling in glioma cell proliferation,invasion,apoptosis and tumor angiogenesis will provide novel therapeutic targets and intervening measures for glioma treatment.