0.05),but in ages(P

Objective To explore the feasibility of detecting death-associated protein(DAP) kinase promoter hypermethylation in the tumor tissues and plasma of patients with gastric adenocarcino- ma,and to evaluate the effect of DNA hypermethylation and autofluroscene spectrums of gastric juice on diagnosing gastric carcinoma.Methods Primary tumor tissues and plasma and gastric juice of 50 patients with gastric adenocarcinoma were collected.Gastric mucosa tissue,plasma and gastric juice of 20 patients with chronic superficial gastritis and 20 patients with benign gastric ulcer and 30 patients with chronic atrophic gastritis were collected as controls.After sodium-bisulfite treatment,extracted DNA was amplified for DAP kinase promoter hypermethylation by methylation-specific polymerase chain reac- tion.At the same time the gastric juice autofluroscene spectrums(the excitation wavelength was 288 nm,whereas the range of emission wavelength was 300-800 nm)were detected.Results Among the samples from 50 patients,p16 and DAP kinase hypermethylation were detected in 74.4% and 68.1% of tumor tissues,52.0% and 58.0% of plasma,58.6% and 76.0% of gastric juice.No hypermethylation was detected in samples of chronic superficial gastritis and serum of patients with gastric ulcer.Among the patients with gastric ulcer,p16 and DAP kinase hypermethylation were detected in 10.0% and 20.0% of tissues,5.0% and 15.0% of gastric juice.Among the samples from 30 patients with chronic atrophic gastritis,p16 and DAP kinase were detected in 10.0% and 23.3% of tissues,3.3% and 3.3% of sera,3.3% and 20.0% of gastric juice.The intensity of gastric juice autofluroscence spectrums of patients with gastric carcinoma was much higher than those in controls.The sensitivity of p16 and DAP kinase hypermethylation and autofluorescence spectrums together were 95.6% and 97.8% respectively.Con- clusions Promoter hypermethylation of the p16 and DAP kinase gene detected in plasma and gastric juice consists with that in primary tumor tissues of patients with gastric adenocarcinoma.The combination of DNA hypermethylation and autofluorescence spectrum has a good future in diagnosing gastric carcinoma.

Humans ; Indium ; toxicity

Objective To verify whether the storage bag can reach the use requirement of cord blood freezing storage by conduc-ting a series of tests before staring use of new type cryopreservation bag for cord blood.Methods According to the standard opera-tion procedure,28 new type cryopreservation bags were extracted.The cord blood units were performed the cryostorage and thaw for rewarming according to the standard operating procedures.Then the physical integrity and various quality indicators of cord blood in bag were detected,including the nucleated cell viability,cell recovery rate,CD34-positive cell,colony-forming cultivation of stem cells,sterility test and verification of actual load volume.Results All the tested storage bags passed the integrity test,and the various testing indicators of the preserved cells conformed to the use requirements.Conclusion The new type storage bag has the same performance and effect to original bag,it is verified that the maximum loading volume of 50 mL(for 50 mL specification of storage bag)and 80mL(for 250mL specification of storage bag)is safe.

Humans ; Insecticides ; poisoning ; Organophosphate Poisoning ; diagnosis ; Phorate ; toxicity

Objective To study a rehabilitation nursing menus for neurogenic large intestine dysfunction.Methods Various nursing approaches were used for defecation dysfunction.Results and Conclusion 94.60% patients improved in the second week,which including gained more awareness,control,and spend less time of defecation.

Animals ; Bone Matrix ; pathology ; Bone and Bones ; pathology ; Collagen Type I ; metabolism ; Collagen Type III ; metabolism ; Disease Models, Animal ; Humans ; Muscle, Skeletal ; metabolism ; pathology ; Osteoblasts ; pathology ; ultrastructure ; Osteoclasts ; pathology ; Osteocytes ; pathology ; Osteogenesis Imperfecta ; classification ; metabolism ; pathology ; Skin ; pathology

Objective To investigate the effects of the folic acid on human T lymphoid leukemia cell line CEM cells. Methods 1. MTT method was used to detect the proliferation of CEM cells co- cultured with folic acid of different concentrations and time;2. E-xamine the changes of morphology by light microscopy with Giemsa stain;3. Detect the percentage of apoptosis and cell cycle distribution as well as the expression of the apoptosis protein(Bcl- 2,C- myc) by flow cytometry;4. Detect DNA fragments by Agaiose elec-trophoresis;5. Detect the influence of folic acid to the anticancer effects of methotrexatc(MTX) by MTT methods. Results 1 Folic acid could inhibit the proliferation of CEM cells, and the optimal inhibitive concentrations range from 0. 4 ? 10-4 ?g/L to 3. 0 ? 10 -4 ?g/L,the inhibition rate was about 30% - 40% ; 2. Co - cultured with folic acid at 24,48, 72 hours, examined by light microscopy with Giemsa stain, apoptosis cells were found in all study groups but the higher apoptosis rate was found co - cultured with folic acid at concentration of (0.4 - 3.0) ? 10-4?g/L;3.The highest apoptosis rate was 6. 19% found at the concentration of 3 ? 10-4 ?g/L, but the cell cycle distribution had no statistical difference with control group, the expression of apoptosis related protein Bcl - 2 and C-myc was decreased;4 DNA was extracted from CEM cells co - cultured with 0.4? 10 -4 ?g/L and 3 ? 10-4 ?g/L folic acid for 48 hours. UNA ladders were visible by agarose electrophoresis of DNA fragments; 5. Folic acid did not affect the antitumor effect of MTX at the concentration from 0 2? 10-4 ?g/L to 12.0?10-4 ?g/L. Conclusion Folic acid may suppress proliferation and induce apoptosis of CEM cell

Objective To analyse the sensitivity ,specificity and coincidence rate of genechip method in the detection of resistance to antibacterial agents in Mycobacterium tuberculosis(MTB) ,in order to provide a convenient ,accurate and rapid method for detec‐ting antibacterial resistance in MTB .Methods The DNA sequencing was taken as gold standard ,and antibacterial resistance of the strains of MTB isolated from sputum specimens of 250 cases of patients with tuberculosis from August to December 2014 were de‐tected by using the genechip method and proportion method for susceptibility testing at the same time .Efficacies of the two methods in detecting MTB resistance to rifarnpin and isoniazid were compared .Results The MTB resistance rate to rifarnpin detected by u‐sing the genechip method and proportion method for susceptibility testing was 3 .0% and 3 .5% respectively ;that to isoniazid was 6 .7% and 8 .2% respectively .For detecting M TB resistance to rifarnpin and isoniazid ,the DNA sequencing was taken as gold standard ,the sensitivity ,specificity and coincidence rate of genechip method was higher than those of proportion method for suscep‐tibility testing ,and the test time of genechip method was shorter than that of proportion method for susceptibility testing ,there were statistically significant differences(P<0 .05) .Conclusion Using the genechip method to detecting MTB resistance to rifampin and isoniazid has high sensitivity ,specificity and coincidence rate ,which could replace the proportion method for susceptibility tes‐ting and become an effective method .

Objective To study the effect of shenfu injection on the neuron apoptosis in hippocampal CA1 region of newborn with hypoxic-ischemic brain damage(HIBD).Methods The experiment included 2 parts.One was to measure the apoptosis rate by the flow cytometry,and the other was to investigate the expression of Bcl-2 and Bax of neurons in left hippocampal CA1 region.Models of postnatal 7-day Sprague-Dawley(SD)rats with HIBD were established,and were equally divided into 4 groups:sham operation(group S),control group(group C),shenfu injection pretreatment(group P),and shenfu injection treatment(group SF).The neuron apoptosis rate in hippocampal CA1 region in every group was measured at 2 h before and 2,12,24 h,3,7,14 and 28 d after hypoxic ischemic(HI) insult.The expressions of Bcl-2 and Bax were performed by immunohisochemistry.Results The apoptosis of neuron in hippocampal CA1 region in group P and group SF after HI insult was significantly less than that of group C(P