The tensional relationship between doctors and patients caused by medical ethics and medical ethos is becoming a hot spot at present.It's of great significance to reduce the contradictions between the medical staff and the patients and construct a harmonious doctor-patient relationship by strengthening the construction of medical ethics and medical ethos and improving the professional quality of medical staff.

Objective To introduce an ideal method of repairing of finger volar skin defect. Methods Thirty-five patients whose finger was repaired by second digit lateral shank flap through free transplantation of lateral defect were selected. Twenty-four cases were male and 11 cases were female, with age of 21 to 45 years old. Cutting injury was in 7 cases, crush injury was in 16 cases, degloving injury was in 9 cases, and firearm injury was in 3 cases. Skin defect area was 2.0 cm × 1.5 cm-4.0 cm ×2.5 cm. The course was 1 h to 5 d. Donor area was repaired by thick skin flap. Results The postoperative wound of 35 cases all healed in stage Ⅰ, and skin flap transplantation and the donor skin grafts survived. Twenty-nine cases received follow-up for 5-26 (14.5±5.0) months. The skin flap had good appearance and good texture, with two points discrimination of 5-8 (6.7±1.1) mm. According to the Chinese medical association upper part of the function evaluation trial standard: excellent was in 19 fingers, good was in 8 fingers, and the excellent and good rate was 93.1% (27/29). Walk, run, jump functions of donor foot were normal. Conclusions Repairing finger with the second digit lateral shank flap through free transplantation of lateral defect has small area damage, and damage to the area around the organization is small. The effect of repairing is good, and can achieve the aim of the palm side repairing.

[Objective] To explore more scientific and reasonable methods for testing the effectiveness of indoorair purifying sets, so as to obtain scientific and constant experimental data from every laboratories. [Methods] Theindoor air purifying sets were classified on the basis of their working mechanisms. Several kinds of current popularmethods for testing the purifying effectiveness and their characters were compared each other and analyzed. The in-fluencing factors and limited conditions of 3 determining models under special conditions established on the basis ofbalance model of pollutants release were explored and studied. [Results] Several current popular methods for testingthe purifying effectiveness were crude, which couldn't accurately reflact the purifying effectiveness of tested indoorair purifying sets. To ensure the experimental operation simple and strict and to obtain scientific testing data, the ex-perimental process should be controlled and transfered to a model suitable for simple volatile matter or other modelseasily operated under the control of its influencing factors. [Conclusion]The establishments of accurate testing meth-ods and accurate expressions of testing results were the sufficient and essential conditions for accurate evaluation ontesting objectives.

50 000 bp)was extracted from frozen gastric cancer tissue and their corresponding normal samples and used for RLGS assay.The genome DNA was digested by methylation-sensitive restriction enzyme Not Ⅰ, and labeled by radioisotope ~(32)p,then separated by two-dimensional electrophoresis and autoradiography. Experimental conditions for each step were optimized step by step.DNA fragment sequences for the dots on scanning profile were identified according to the human RLGS database.Results RLGS assay was set up and used to get the RLGS profiles of the representative tested samples successfully.These profiles can display more than 1 200 available dots averagely,the profiles of high quality DNA sample can display more than 1 800 dots which is the average level at an excellent RLGS lab,discrepant dots which had weaken or enhanced signals and their sequence information were obtained.The result can be reproduced.Conclusion The RLGS assay is established,stabilized for detection of DNA methylation of tissue samples.

Objective　To observe the curative effect and sid e effect of the gastrokinetic agent mosapride citrate by RCT. Methods　 42 cases of functional dyspepsia (FD) were divided into two groups rando mly, the group of mosapride(21 cases):orally administrated mosapride, 5mg, t.i.d for 4 weeks, and the control (21 cases):orally administrated domperidone, 5mg, t.i.d for 4 weeks. Symptoms and side effects were recorded before and at d 14, d 28 after administration of the medicines according to GCP and double blind pri ciple. Gastric empting test was also carried out in randomly selected patients. Results　Mosapride and domperidone were significantly effective on alleviating symptoms of the patient with FD. In mosapride treated group the half emptying time was shortened and the 120 min remain rate was reduced. No sid e effect was found. Conclusion　These results suggest that mosa pride 5 mg t.i.d. is effective and safe on alleviating symptoms of patients with FD and improving the ga stric empting time.

Objective To study the clinical diagnosis value and CT features of gastric fundus and cardiac part lesions.Methods The CT findings and examining method of gastric fundus and cardiac part lesions were analyzed and summarized in 64 cases.Results (1)Use water as oral contrast can show the gastric mucosa clearly,it was a simple,effective way.(2)CT had important significance for stages and infiltration of cardiac cancer.(3)Varix of gastric fundus had three types:pseudotumor,tuber and thinking-wall.(4)The CT characteristic features of leiomyoma were the continuous linear enhancement in mucosa.Conclusion CT is method for gastrointestinal examining,it has special value to the gastric fundus and cardiac part lesions.

Objective To compare the efficacy and safety between postoperative chemoradiotherapy and postoperative chemotherapy alone in patients with gastric cancer by a meta-analysis of randomized controlled trials (RCTs).Methods Chinese Scientific Journal Full-Text Database (January 1979-June 2013),VIP (January 1989-June 2013),Chinese Biomedical Literature Database (January 1978-June 2013),Cochrane Library (Issue 6,2013),PubMed (January 1966-June 2013),and EMBASE (January 1974-June 2013) were searched to identify RCTs of postoperative chemoradiotherapy versus chemotherapy alone in patients with gastric cancer.The obtained data were analyzed using RevMan 5.2 and Stata 12.The difference between two groups was estimated by calculating the risk ratio (RR) with 95％ confidence interval (CI).Results A total of 1 143 patients from 11 RCTs were included in the meta-analysis according to the inclusion and exclusion criteria.Our results showed that postoperative chemoradiotherapy significantly increased 1-,2-,and 3-year overall survival rates (RR =1.20,95％ CI=1.10-1.30,P=0.00; RR =1.34,95％ CI=1.16-1.56,P=0.00; RR =2.62,95％ CI=1.72-3.97,P=0.00) and 3-and 5-year disease-free survival rates (RR =1.10,95 ％ CI =1.00-1.21,P =0.04; RR =1.27,95％ CI =1.02-1.60,P =0.04).The incidence of grade 3 or 4 gastrointestinal tract reactions,liver function impairment,bone marrow suppression,and hand-foot syndrome was low and showed little difference between two groups (P =0.03-0.78).Conclusions Postoperative chemoradiotherapy can prolong the survival of patients with gastric cancer,and the patients have good tolerance to chemotherapy drugs.

OBJECTIVETo study the effect of Zhengganfang (ZGF) drug serum in inducing differentiation of Bel-7402 human hepatocarcinoma cell (HHC) and its influence of the telomerase activity.

METHODSRats were fed with ZGF decoction to prepare the drug-serum of ZGF, and the drug-serum was used for Bel-7402 HHC culture. Serum of normal rat, was taken as negative control and retinoic acid (RA) as the positive control. Cell proliferation was detected by MTT colorimetric assay, nucleocytoplasm ratio by image assay, alpha-fetoprotein (AFP) by RIA, alkaline phosphatase (ALP) activity and gamma-glutamyl transpeptidase (gamma-GT) by dynamic colorimetric assay and telomerase activity of Bel-7402 cell by PCR-ELISA.

RESULTSDrug-serum of ZGF could inhibit the proliferation of Bel-7402 cell, markedly reduce the nucleocytoplasm ratio and the secretion of AFP, decrease gamma-GT activity, increase ALP activity and suppress the telomerase activity of Bel-7402 cell.

CONCLUSIONZGF can induce the differentiation of Bel-7402 HHC, the main mechanism maybe through the suppression of telomerase activity.

Alkaline Phosphatase ; metabolism ; Animals ; Carcinoma, Hepatocellular ; pathology ; Cell Transformation, Neoplastic ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Hepatocytes ; pathology ; Liver Neoplasms ; pathology ; Male ; Rats ; Rats, Sprague-Dawley ; Serum ; Telomerase ; metabolism ; Tretinoin ; Tumor Cells, Cultured ; alpha-Fetoproteins ; metabolism ; gamma-Glutamyltransferase ; metabolism

Polyethylene glycol (PEG) lipid derivatives could increase the stability of liposomes in vivo and in vitro and prolong the circulation time of liposomes in vivo. However, the chemical bond between PEG and lipid was so stable that liposomes modified with traditional PEG-lipid derivatives could not release their contents at targeted tissue immediately and the pharmacodynamic effect was reduced. The concept of cleavable PEG-lipid was raised in recent years and these PEG-lipid derivatives could break under physiological or pathological condition. The cleavable PEG-lipid derivatives could prolong the circulation time of liposomes, and after arriving at targeted location, PEG fragment had cleaved from the surface of liposomes, so liposomes could bind with pathological cells and release contents into cells. Removal of the protective polymer layer is necessary once the liposome close to the tumour to allow to fuse and release drug. Attempts have been made to increase the circulation time and reconstitute the cellular affinity of liposomes by incorporating PEG-lipid derivatives. This review focused on the kinds of cleavable PEG-lipid derivatives, types of cleavage, the application feature to liposomes and the advantages and localizations.
Cholesterol ; analogs & derivatives ; chemistry ; Drug Delivery Systems ; methods ; Humans ; Liposomes ; chemistry ; Phosphatidylethanolamines ; chemistry ; Polyethylene Glycols ; chemistry

OBJECTIVETo establish a sensitive assay to detect methylation status of the critical 7862nt CpG site related to transcription of HPV16 E6 and E7 genes.

METHODSGenomic DNA of two HPV16-infected cell line SiHa and CaSki was extracted and modified by sodium bisulfite to convert the unmethylated Cs to Us (Ts in PCR products). The target sequence of HPV16 including the 7862nt CpG site was pre-amplified by PCR. Then, the methylation status of the 7862nt site was differentiated in a primer extension reaction with an HPV16-specific primer, and separated by DHPLC at 80 degrees C.

RESULTSThe primers without extension and with extension, whether matched to CpG or TpG, could be separated by DHPLC completely. The peak for ddTTP-extension products corresponding to the demethylated CpG site was observed at retention time 6.7 min in both cell lines. However, the peak for ddCTP-extension products representing the methylated CpG site could be detected at retention time 6.3 min in CaSki cell line only, which integrated with 499 methylated and one demethylated HPV16 copies.

CONCLUSIONThe established DHPLC-primer extension assay can be used to detect methylated and demethylated HPV16 copies simultaneously with a sensitivity up to 1/500 (0.2%).

Cell Line, Tumor ; Chromatography, High Pressure Liquid ; methods ; DNA Methylation ; DNA, Viral ; genetics ; Female ; Human papillomavirus 16 ; genetics ; isolation & purification ; Humans