Objective To observe the effect of interleukin-1β(IL-1β) on expression of Matrix Metalloproteinases 13 (MMP-13) in rat chondrocytes and its regulation of miR-27b. Methods Chondrocytes were extracted from 7 Wistar male rats. Expression of MMP-13 were examined by Western blot at 0 h, 24 h, 48 h after IL-1βstimulation. Differential miRNAs expression profiles were examined by miRNAs microarray. The most obviously down-regulated miRNAs were confirmed by quantitative Real-time PCR. Targeted regulation relationship between miR-27b and MMP-13 was set up by Luciferase re?porter gene experiments. Results Expression of MMP-13 in rat chondrocytes was increased at a timely dependent manner upon IL-1βstimulation(P<0.05);Microarray revealed 36 miRNAs whose expression changed, among which 6(miR-27b, miR-31, miR-26a, miR-26b, miR-23, miR-204)were especially obvious. Real-time PCR confirmed that miR-27b was the one whose expression level were most down-regulated. Transient co-transfection of miR-27b mimics with luciferase expres?sion plasmids resulted in significant repression of luciferase activity in rat chondrocytes (P < 0.05). Conclusion IL-1βstimulation result in down-regulation of miR-27b and up-regulation of MMP-13 expression. MiR-27b and MMP-13 show targeted regulation relationship.

The doctor-patient relationship has become increasingly tense. The requirement of the society for physicians, especially surgeons is higher. Apart from fine professional skills, surgeons must learn some other skills, such as communication, the ability of self-decompression, and the awareness of public relationship to deal with inculpation from the media and society. The medical record is more and more important nowadays, surgeons should pay enough attention to it. The public misunderstanding of the medical profession will surely harm both doctors and patients in the end.
Adaptation, Psychological ; Attitude of Health Personnel ; Communication ; Digestive System Surgical Procedures ; Humans ; Physician-Patient Relations ; Physicians

Humans ; Stomach Neoplasms ; surgery

Humans ; Stomach Neoplasms ; diagnosis ; therapy

Adenocarcinoma ; diagnosis ; surgery ; Esophageal Neoplasms ; diagnosis ; surgery ; Esophagogastric Junction ; Humans ; Stomach Neoplasms ; diagnosis ; surgery

Liver cancer remains difficult to treat, owing to a paucity of drugs that target critical dependencies; broad-spectrum kinase inhibitors such as sorafenib provide only a modest benefit to patients with hepatocellular carcinoma. The induction of senescence may represent a strategy for the treatment of cancer, especially when combined with a second drug that selectively eliminates senescent cancer cells (senolysis). Here, using a kinome-focused genetic screen, we show that pharmacological inhibition of the DNA-replication kinase CDC7 induces senescence selectively in liver cancer cells with mutations in TP53. A follow-up chemical screen identified the antidepressant sertraline as an agent that kills hepatocellular carcinoma cells that have been rendered senescent by inhibition of CDC7. Sertraline suppressed mTOR signalling, and selective drugs that target this pathway were highly effective in causing the apoptotic cell death of hepatocellular carcinoma cells treated with a CDC7 inhibitor. The feedback reactivation of mTOR signalling after its inhibition is blocked in cells that have been treated with a CDC7 inhibitor, which leads to the sustained inhibition of mTOR and cell death. Using multiple in vivo mouse models of liver cancer, we show that treatment with combined inhibition of CDC7 and mTOR results in a marked reduction of tumour growth. Our data indicate that exploiting an induced vulnerability could be an effective treatment for liver cancer.

we have designed a program-controlled high-fi amplifier for EMG.Its gain can be controlled by computer.The program-contralled circuit is implemented with numerical control resistor.The amplifier can be used in automatically measuring EMG signals over 100?v.The circuit is characterized by easy de- sign,simple programing and convenient control.

Objective To establish a method for quantitative determination of 17 kinds of organophosphates pesticides in vegeta‐bles by gas chromatography and mass spectrometry (GC‐MS) .Methods The sample was extracted by acetonitrile ,purified by the a‐mino solid phase extraction small column ,concentrated ,detected by GC‐MS .Then the ion scanning (SIM ) mode was selected to mo‐nitor the specific iron in target compound for conducting the quantitative analysis .Results 17 kinds of compound had good linearity in the limit of detection (LOD) of 0 .001 - 0 .02 mg /kg (S/N = 3) with a relative standard deviation of 1 .05% - 6 .81% ,and the re‐covery rate was 66 .4% - 99 .3% when with cap at 004 ,008 ,0 .40 mg/kg .Conclusion This method has good selection and high sensitivity ,and is suitable for the rapid determination of organophosphates pesticide residues in vegetables .

Objective To investigate effect of Xuebijing injection on Th1/2, endotoxin and immune factors in patients with acute sepsis.Methods 110 cases of sepsis patients were selected and divided into two groups from September 2014 to January 2015.The control group of 55 cases were treated by clinical routine therapy, the experiment group of 55 cases were treated with Xuebijing injection on the basis of control group.Hemodynamics, serum Th1/2, endotoxin and specific immunological function of spleen were compared.Results After treatment, the heart rate of experiment group was significantly lower than control group (P<0.05), the mean arterial pressure and central venous pressure were higher than control group (P<0.05), vasoconstrictive drugs application amount was less than control group ( P<0.05 ) , the ratio of Th1/Th2 was higher than control group ( P<0.05 ) , serum endotoxin levels was lower than control group (P<0.05), and the ratio of HLA-DR, lymphocyte proliferation and positive index of caspase-3 cells were lower than control group(P<0.05).Conclusion Xuebijing injection can effectively improve haemodynamics in patients with sepsis, regulate serum Th1/Th2 levels, reduce serum endotoxin level and enhance specific immune function of spleen, which has important significance for clinical treatment of sepsis.

AIM: To observe the effect of ischemic preconditioning (IPC) on the subsequent permanent ischemic rat retina. METHODS: A model of two-vessel occlusion (2VO) was used to give an ischemic insult to rat retina. Bilateral carotid arteries were occluded directly in the simple ischemic groups. A procedure of double 2 min ischemia- 3 min reperfusion was applied to IPC groups before their carotid arteries were occluded. Experimental control groups received the same operation except that their exposed vessels were not occluded. Other 6 normal rats served as immunohistochemical controls. Eyeballs were taken out after being subjected to 1, 3 and 7 days of ischemia. The morphometry of retina was measured by stereologic methods. The apoptosis during the retinal ischemia was detected by TUNEL. Immunohistochemistry staining was used for the localization of bcl-2 in retina. RESULTS: In IPC groups, the thickness of retina was thinner than that in simple ischemic groups. The apoptosis was less when compared with the simple ischemic groups at the same ischemic time. The apoptotic cells show only in INL and the apoptosis of RGCs was not appeared until 7 days postischemia. There was no significant difference of the numerical density of RGCs at the different time after the operation. The bcl-2 immunoreactivity was weaker than that of the simple ischemic groups too. CONCLUSION: IPC reduced the injury caused by ischemia in retina, showing a protective effect.