砄bjective: To study the effects of functinal appliances combined with activator headgear in the treatment of Class II division 1 malocclusion with or without high mandibular angle. Methods: 5 cases (10～12 years old) of class Ⅱ division 1 malocclusion with high mandibular angle (FMA≥34?,HMA) and 8 cases (9～12 years old) without the high angle (FMA

It has been confirmed that hepatocellular carcinoma belongs to gene related disease.Biological characteristic of hepatocyte can be infected by abnormal expression of related genes,resulting in normal cell transformed to carcinoma cell,therefore,we should do further research to find new methods for diagnosis and treatment of HCC.As a new technique for gene knockdown,RNAi has been applied more in the fields of gene function and gene therapy.This paper is a review about recent advance in HCC gene therapy with RNAi.

Alpha-fetoprotein is an important molecular marker for clinical diagnosis, evaluation of curative effect and prognosis of cancer for long time, especially for hepatocellular carcinoma. But for physiological function of alpha-fetoprotein, we know less than its clinical significance. So here this article presents a review about physiological function of alpha-fetoprotein and its application in molecular therapy of hepatocellular carcinoma.

Objective: To further optimize the hospital inspection process, shorten the patient waiting time of examination and improve the overall utilization of medical equipment. Methods:HIS and PACS to realize the information system integration by using hospital information platform, and then develop a set of medical equipment reservation system. The doctor workstation through the system could real-time help patient appoint check items, and eliminate patients to check the front desk or reservation center reservation registration steps. Results:The successful application of medical equipment reservation system not only optimize hospital inspection process, shorten the patient waiting in line inspection time, but also increase the utilization rate of MR equipment by 35%. Conclusion: The use of medical equipment reservation system saves the patient queuing registration, waiting for the examination of the time, and improve the utilization rate of hospital medical equipment, create economic benefits for the hospital and brought widespread popularity and reputation for the hospital.

OBJECTIVE:To optimize the ultrasonic-assisted extraction technology of total flavonoids from Tibetan Scindapsus aureu. METHODS:The single-factor test was adopted to investigate the effects of extraction time,extraction temperature,the vol-ume fraction of ethanol,the ratio of liquid to solid and power on the extraction rate of total flavonoids from Tibetan Scindapsus au-reu in the process of ultrasonic-assisted extraction,based on which,four-factor and five-level Box-Behnken central component de-sign was performed with unchanged ultrasonic power,and then response surface method was adopted to analyze the effects of the 4 factors and their interaction on the extraction rate of total flavonoids to determine the optimal factor and level,and verification tests were conducted.RESULTS:The optimal ultrasonic-assisted extraction technology was as follows as extraction time of 29 min,tem-perature of 44 ℃,volume fraction of ethanol of 78%,ratio of liquid to solid of 13∶1(ml/g). In three verification tests,the aver-age extraction rate of total flavonoids was 2.130%,with an relative error of 0.005% compared to the theoretical value. CONCLU-SIONS:The optimal technology is reasonable and feasible,and can be used for theultrasonic-assisted extraction of total flavonoids from Tibetan Scindapsus aureu.

Command of the JCI standards and lessons learnt from practice and experience in JCI accreditation preparation,can help identify the gap between the hospitals and JCI standards.These standards can also guide the clinical pathway system,pharmacy intravenous admixture services system and medical business intelligence system.The information system built under such guidance not only makes an effective solution to existing problems,but also proves innovative.All these pave the way for successful JCI accreditation.

Objective To assess the effect of Ambroxol combined with Naloxone on respiratory insufficiency on premature infants. Methods A total of 168 premature infants treated from 2006 to 2009 in our hospital were divided into two groups randomly. Additionally to the conventional treatment, Ambroxol (5 mg pertime) combined with Naloxone (0.1mg pertime) intravenously injected 2 to 3 times one day for 3 to 5 days in the treatment group(86 cases). The control group (82 cases) was treated by routine Aminophylline injection,3- 5 mg/kg pertime, 2 to 3 times one day. Respiratory rates, regulately or not,breathholding, cyanosis and apnea,mechanically ventilated time,time of oxygen inhaling, time of hospital stay and the overall response rate were measured. Results The overall response rate was 80% (69/86) in the treatment group and 56% (46/82)in the control group, with significant difference between the two groups ( P ＜ 0. 05 ). Mechanically ventilated time,time of oxygen inhaling and hospital stay in the treatment group was (110.5±45.1) hrs, (169.3±58.6) hrs and ( 12±3) days, which were all significantly lower than that in the control group ( 181.1±81.2) hrs, (236.6±87.8)hrs and (16±5)days,respectively(P＜0.01 or 0.05). Conclusion Ambroxol and Naloxobe additional to conventional treatment could improve the respiratory function in premature infants with respiratory insufficiency safely with less side effects. Moreover,breathing machine could be removed to some extent,which made it more applicable in primary hospitals.

This study is designed to investigate the anti-tumor and anti-angiogenesis mechanism of carrageenan oligosaccharides. The effects of carrageenan oligosaccharides on basic fibroblast growth factor (bFGF) induced cell proliferation, heparanase activity and bFGF binding ability were evaluated in human cervical cancer cells (HeLa) and human umbilical vein endothelial cells (HUVEC). Results indicate that, at rational concentrations, carrageenan oligosaccharides showed low cytotoxic effect. At relatively low concentrations (0.2-200 microg x mL(-1)), these oligosaccharides could competitively bind bFGF and inhibit bFGF induced cell proliferation. In these samples, oligo-lambda-carrageenans (dp2-8) were the most potent bFGF antagonists. At concentration of 20 microg x mL(-1), their inhibitory ratio reached to 30%. The heparanase enzyme assay revealed that three kinds of carrageenan oligosaccharides showed different inhibitory activities to two cell lines. For HeLa cell, oligo-lambda-carrageenans showed highest inhibitory effect, but for HUVEC, oligo-kappa-carrageenans (dp9-17) were the best inhibitors. Current observations demonstrated that the biological activities of carrageenan oligosaccharides are closely related to the molecular weight, carbohydrate structure and the content and linking position of sulfur groups. Carrageenan oligosaccharides with high sulfate fraction, 2-8 units saccharide size and suitable molecular structure are able to achieve potent heparin sulfate-like compounds.

Objective:To study the structural changes of upper airway i n the patients with Angle Ⅱ 1 malocclusion treated by orthodontic appliance. Methods:12 patients with Angle Ⅱ 1 malocclusion caused by mout h breathing were treated by rapid maxillary expansion (RME) of splint and Tip-E dge technology, the structure of upper airway was measured before and after trea tment,the data were analyzed. Results:After treatment PNS-Ba,SP P-SPPW,P-T,TB-TPPW,V-LPW,UC-LC and H-C3(hor) increased(P

Objective To explore the expression changes in SHIP1 gene in patients with chronic granulocytic leukemia (CGL), healthy volunteers and the K562 cells (one of human CGL cell lines), and to explore the effects of BCR/ABL expression in K562 cells on the SHIP1 gene by blocking the BCR/ABL expression in K562 cells with a specific siRNA. Methods The expression levels of SHIP1 mRNA in leukocytes of the patients with CGL, healthy controls and K562 cells were assessed with RQ-PCR. In addition, K562 cells were divided into three groups: control group (untreated), non-specific interference group (treated with non-specific siRNA), and specific interference group (treated with specific siRNA to block BCR/ABL gene). RQ-PCR and Western blotting were employed to examine the expression level of mRNA and protein (P210 and P145) of BCR/ABL and SHIP1 genes. Results The mRNA expression of SHIP1 in CGL patients and K562 cells was significantly lower than that of the healthy controls. The expression of BCR/ABL gene was down-regulated, while SHIP1 gene up-regulated, in the specific interference group. No statistical significant difference was found between the non-specific interference group and the control group. Conclusions The mRNA expression of SHIP1 is lower in patients with CGL than in the healthy control. The specific siRNA can block the expression of BCR-ABL and further suppress the expression of SHIP1.