The Wnt/β-catenin signal transduction pathway is essential for regulating cell proliferation, movement, differentiation and embryo development. Researchers have found that Wnt pathway is an important regulation factor in the early stimulation of the cardiogenesis and contacts closely the several key events during cardiac morphogenesis. The article reviews the recent studies about the relation between cardiac development and Wnt pathway in early embryo.

The Wnt/?-catenin signal transduction pathway is essential for regulating cell proliferation,movement,differentiation and embryo development. Researchers have found that Wnt pathway is an important regulation factor in the early stimulation of the cardiogenesis and contacts closely the several key events during cardiac morphogenesis. The article reviews the recent studies about the relation between cardiac development and Wnt pathway in early embryo.

Objective Based on the result that a gene coding for human HSS had been identified and prokaryotically expressed, this study is aiming to investigate the proliferative and protective effect of recombinant HSS on hepatoma cells. Methods hHSS protein was produced in BL\|21 strain of E.Coli containing pET\|42a vector and purified with His\5Tag affinity chromatography. A various dosages of 80\|400??g/L were administrated into cell culture. The cell proliferation was analyzed by MTT, cell\|count and flow cytometry methods. Furthermore, cellular growth signaling as indexed by phosphorylation of mitogen\|activated protein kinase (MAPK) was determined with Western blot. In addition to cell growth, protection of hHSS on the cells against H\-2O\-2 was also observed. Results It was showed that recombinaht HSS of 400??g/L was able to promote DNA synthesis by 21\^5% as compared to non\|treated cells. After 24?h of HSS action, the cell division measured by MTT method as well as cell\|count was significantly enhanced. Meantime, it was indicated that the phosphorylation of MAPK Thr202/Tyr204 was increased in 79\^0% as compared with that of the non\|treated cells. Pretreatment of the cells with hHSS for 12?h prior to H 2O 2 injury preserved the survival of them.Conclusion It is postulated that hHSS is an active protein to stimulate liver proliferation. [

Atrial Flutter ; diagnosis ; etiology ; therapy ; Electrocardiography ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; Treatment Outcome

Objective:To analyze the clinical effect and influencing factors of closed reduction and percutaneous cannulated screw fixation in the treatment of femoral neck fracture in the adolescents, and to provide evidence for surgical treatment of femoral neck fracture in the adolescents. Methods:The clinical effect and influencing factors of 36 cases of femoral neck fracture treated by closed reduction and percutaneous cannulated screw fixation were analyzed. The time of operation, the time of fracture healing evaluated with X-ray image, the evaluation on the function after operation by Harris score of hip joint,and the occurrence of complications of the patients were observed.Results:All the cases were followed up for 6-24 months, average 16 months. One case of all patients had avascular necrosis of the femoral head, and accounted for 2.78% of all the patients;2 cases of all fractures were nonunion, and 5.56%.The remaining 33 cases were completely healed.The HHS-harris hip score results showed that 26 were excellent, 6 cases were good, and 2 cases were poor;the excellent and good rate was 88.89%.Conclusion:Closed reduction and percutaneous cannulated screw fixation in the treatment of adolescent femoral neck fracture is an effective program of operation;timing of operation, good reduction, and rigid internal fixation can decrease the femoral head necrosis and the incidence of complications.

OBJECTIVE: To design the dosage regimen of aminophylline using reported pharmacokinetic parameters (mean group value). METHODS: The calculation of oral maintain dose, the infusion rate of intravenous drip maintain dose and the loading dose of intravenous drip were introduced. RESULTS: Different dose were required for different pathophysiological conditions insteading of aminophylline 200 mg three times a day (p.o.) for every patient. CONCLUSION: It is recommended that all hospitals which are unable to determine plasma concentration should design dosage regime of aminophylline using pharmacokinetic parameters.

Since the oral rehydration salts solution(ORS) has been used to treat acute diarrhea of children, there are different kinds of ORS in order to satisfy the need of clinical work. They are the initial WHO-ORS, other substances-supplemented ORS and the reduced osmolarity ORS, each of which has their own efficiency and advantage.

Hormone ingredient in the egg oil, egg and Oviductus Ranae of Rana temporaria chensinensl is David were studied as well as the effect of egg-oil on platelet aggregation and blood lipid.Results proved that the estradiol content in the egg-oil is very high.The egg-oil can obviously inhibit blood platelet aggregation and showed an hypolipemia activity. It is expeetedthat the egg-oil of R. temporaria chensinensis can be developed as an efficient medicine for the prevention and cure of atherosclerosis and hyperlipemia in elderly.

Objective: To determine the contents of paeoniflorin and glycyrrhizic acid in Gianggan Capsules by RP HPLC. Methods: The Chromatographic method was carried out on Kromasil C 18 column using acetonitrile phosphate buffer solution (pH=5) (20∶80) as a mobile phase. The detection wavelength was set at 230nm and 250nm. The flow rate was 1ml/min. The column temperature was 40℃. Results: The paeoniflorin and glycyrrhizic acid calibration curves were linear at the ranges of 0.48～4.80?g and 1.08～10.81?g(r=0.9999). The average recoveries were 100.5% with RSD 1.2% for paeoniflorin and 98.9% with RSD 0.9% for glycyrrhizic acid. Conclusion: This method is simple, reliable and provides a reference standard for the quality control of Gianggan Capsules.

Objective: To determinate the content of isoimperatorin in Exocarpium citri grandis from 10 various species and origins. Methods: The isoimperatorin was determinated at 305nm by TLC Scanning. Results: The content of isoimperatorin in Exocarpium citri grandis was very low, and the law of distribution could not be found. Conclusion: Although the content of isoimperatorin in Exocarpium citri grandis was very low, the method is very sensitive and simple and the result is accurate.