Object To speed up the artificial propagation of the costly medicinal plant Dendrobium nobile Lindl. Methods The tender stems with lateral buds were tried as the explants and cultured on various culture media with different portions of hormon. Results The best medium for bud induction was the MS basic medium with addition of 6 BA (0.5 mg/L), NAA (0.2 mg/L), while MS with the addition of 6 BA (3.0 mg/L) NAA (0.5 mg/L), was suitable for propagation, MS with addition of IBA (0.3 mg/L), NAA (0.1 mg/L) was better for root growing, the striking growth rate was up to 95%. The young sprout was cultured fine on the base material mixed with coco crumbs, volcanic rocks and brick fragments (1∶1∶ 1) and covered by dried pteridophyte. Conclusion To provide the effective ways to reserve the resources of D. nobile and last its utlization.

Objective:To establish a method of morphologic measurement of the mandibles and obtain the average values of three dimensional morphologic measurements of the mandibles .Methods: A me-thod of morphologic measurement of the mandibles was established firstly .The three dimensional CT data of 54 normal adult skulls were measured by this method .The data were analyzed by SPSS 13.0 statistical software.Results:In the study, 84 groups of mean values and standard deviations of the length , width, height, depth, thickness and angle of the mandibular contour in males and females were obtained .There were significant differences between the male and the female in the 66 of the 84 groups data , while the 16 of the 84 groups data had no significant differences and distributed symmetry on both sides of the mandi -bles .No correlation was found in the mandibular contour data in length , width , height and depth .Con-clusion:The characteristics of adult mandibular contours are different between males and females , indi-cating that each individual has its own morphologic features .

Objective To assess the effect of scene simulation-based teaching on pediatric advanced life support(PALS)skills in medical students.Methods The students of two grades of Department of Pedi-atrics in Capital Medical University participated in the PALS training.All of them had the examination of the-ory and skills of critical illness management and cardiopulmonary resuscitation in children before and after the scene simulation-based teaching on PALS.The questionnaire was filled out and the data was analyzed after the training.Results Fifty-one students completed the training.The average score after the training was sig-nificantly higher than that before the training(86.51 ±7.16 vs.53.85 ±14.24,P ﹤0.05).After the training, the error rate of ECG recognition,etiological identification and treatment of the disease,and the dosage as well as usage of medicine was significantly decreased (64.7% vs.15.7%,71.0% vs.10.5%,73.2%vs.25.9%).All of the students could use the defibrillator correctly and the students'satisfaction rate was more than 94%.Conclusion Scene simulation-based teaching on PALS skills can improve the theory and skills of critical illness management and cardiopulmonary resuscitation of children in medical students.

Objective To improve the understanding of pelvic lipomatosis.Methods The clinical features of eight patients(males,aged 26-64years) with pelvic lipomatosis who were admitted to Peking Union Medical College Hospital from 1983 to November 2006 were reviewed.The clinical and pathologic features,treatment and prognosis were analyzed.The course of disease before admission was(95?82)months,The period of follow-up was(15?32)months,five cases under went upper tract urinary diversion,one case had urinary tract diversion and received steroids,one case received steroids treatment only.Results Four cases had cystitis glandularis,frequency and urgency of micturition were observed in three cases.Dysuria in three cases,hematuria in three cases,and hypertension in five cases were recorded during the course of disease.Renal insufficiency was observed in all of eight cases(Mean Ccr was 76?18mL/min).All cases had abnormal features in their image investigation,which indicated excessive pelvic fat directly or indirectly.Six cases had upper tract distention.Four cases underwent pelvic tissue biopsy.The result of biopsy was fat-vessel tissue.Their symptoms,not renal function,were relieved after treatment.Conclusion The symptoms of pelvic lipomatosis are atypical,they had renal insufficiency,and their diagnosis mainly depends on image investigation and pathologic examination.

ObjectiveTo observe the treatment effect of seveve acute pancreatitis (SAP) with gabexate combined with Xuebijing after local infusion. MethodsForty-four patients with SAP were randomly divided into receiving intravenous gabexate or Xuebijing alone (control group) group and receiving local infusion with gabexate combined with Xuebijing( experimental group) group. At 1,7,14 days of testing in diamine oxidase (DAO), lipopolysaccharide, IL-18, TNF-α, APACHE- Ⅱ score, T lymphocyte subpopulation and monocyte HLA-DR expression and single change in the number of nuclear cells were tested. ResultsBetween two patients groups at 1,7,14 days diamine oxidase, lipopolysaccharide, IL-18, TNF-α, APACHE-Ⅱ score showed a downward trend; T suppressor cells (Ts) reduced in their percentage; total T lymphocytes, T helper cell (Th), monocyte HLA-DR expression (percentage) and mononuclear cells showed an upward trend in the experimental group than control group, the differences being statistically significant (P ＜ 0.05). In the experimental group and control group, the pain relief time, intestinal function recovery time, the withdrawal of ventilator time, the incidence of sepsis, the rate of conversion to open surgery were statistically significant different (P ＜ 0.05 ). Conclusions Compared with intravenous drug use alone the implementation of gabexate combined with Xuebijing local infusion can reduce the early course of SAP patients intestinal permeability and reduce endotoxin translocation, protect intestinal barrier function of patients with SAP, improve the patients' immune function, symptoms, signs and reduce the rate of sepsis and transit operations.

To identify the key elements and available tools of regional health information resources plamling,the study introduced an innovative I-beam map,aiming to solve the two key questions of what and how to plan The paper covered such issues of planning as what is the present situation of regional health information,how to divide functional categories of regional health information resources,what are included in the business subclasses,which core data are used in the business process,which data to share and exchange,how to regulate such data,how to manage the regulations and make continuous improvement,and how to evolve towards planning standardization discriminatively.The study also drew a midfield line with such seven fields as medical service,maternity and child care,disease control and Drevention,health administration,emergency management,blood management and primary healtheare.This midfield line is used,along with stakeholders,planning process,information flow and planning output make the four quadrants,describing the whole process in the I-beam form.This practice can provide the methodology ofhow to plan,in the hope of guiding regional health information resource planning from theory to practice.

Regional health planning is a leading and scientific management philosophy for healthcare development in the international community.Information resources planning paves the way for scientific development.In the ongoing health reform in China,planning of regional health resources will play a key role by leveraging information technology.From the viewpoints of health information resources and information resources planning,the paper defines the concept of regional health information resources planning in microcosmic perspective.It summarized the five features of public welfare,specificity,imbalance,small channel and low noise,and non-symmetry.Authors compared the five planning modes,namely the community medical information resources mode,the general hospitals as the center of information resource mode,the regional PACS mode,the regional health data resource mode,and the regional medical coordination resources mode.In the paper,the planning is rounded up as four key points,that is,the basic steps of situation assessment and analysis,routine work of health information standardization,the planning should both comply with general rules of information resource planning and characteristics of the health sector,in addition to guidelines of forward-looking concepts.

Endovascular Procedures ; Humans ; Ischemia ; surgery ; Knee ; blood supply

Objective To determine the methylation status and expression of Ras association domain family 1A (RASSF1A), and the possible effect between promoter aberrant methylation and pathogenesis of pancreatic cancer. Methods The methylation status of RASSF1A promoter CpG island (CGI) pancreatic cancer cell line BxPC3 was detected in 5 cases of normal pancreatic tissue and 13 pairs of pancreatic cancer tissues (tumor and peri-tumor) by using COBRA (combined bisulfite restriction analysis) and the methylation rate was calculated. The RASSF1A mRNA expression of BxPC3 was compared between pre- and post-treatment of the inhibitor of DNA methyltransferase (5-Aza-2-deoxycitydine, 5-Aza-dC). Results The average methylation rate of RASSF1A promoter CGI was 62.90% in BXPC3, 9.14% in normal pancreas, 53.79% in peri-tumors (TP), and 55.82% in tumors. The methylation rates in port-tumors and tumors were significantly increased when compared with that of normal pancreas (P < 0.01), while there was no significant difference between in peri-tumors and tumors (P > 0.05). After 5-Aza-dC treatting BxPC3 cells, the methylation rates decreased to 42.5% (P < 0. 05) and RASSF1A mRNA expression was enhanced. Conclusions Aberrant hypermethylation of RASSF1A promoter CGI could be considered as an early event in the process of pancreatic cancer and participates in the pathogenesis of pancreatic cancer.

Objective:To eveluate and study the anatomic basis of the posterior contour sign of lumbar intervertebral disc.Methods:The most protruding length of the soft tissue mass behind intervertebral spase on lumbar plain film were measured in 100 cases and compared with CT or MR findings.Results:41 posterior contour sign of the interlumbar disc were fined in 39 cases,of which there were 25 in L4/5(61.0%),15 in L3/4(15.6%)and 1 in L2/3(2.4%).The protruding was less than 0.2 cm in 26 and larger than 0.2 cm in 15,there were 10 lumbar disc protruding confirmed by CT or MR ,7 of which the pesterior contour ≥0.2 cm,and 3＞0.3 cm,none was ≤0.2 cm.Conclusion:The adipose tissue in the posterior border of lumbar body and disc was the anatomic basis of the sign,and it was an importent sign for diagnosing of lumbar disc hernia on plain film.