Researches indicate that gastric carcinoma occurs where gastric stem cells settle down.Stem cells may play an important role in formative process of gastric carcinoma. Researches on relationship between stem cells and gastric stem cells, tumor stem cells and stomach neoplasms, bone marrow stem cells and stomach neoplasms indicate that gastric carcinoma may be a kind of stem cell diseases.

Reverse transcription loop-mediated isothermal amplification(RT-LAMP)is a novel nucleic acid amplification technique which has been mainly used in a variety of viruses and other pathogens of gene detection.Compared with reverse transcriptase polymerase chain reaction (RT-PCR),the RT-LAMP has advantages of reaction simplicity,rapidly,cost-effective,detection sensitivity and specificity.Nowadays,RT-LAMP technology is gradually used in various medical fields,but it is still a new method especially in cancer diagnosis of tumor gene.The article reviews the application of the RT-LAMP technology in the cancer

Objective:To explain the supplier induced demand theory paradigm,track the empirical research progress,so as to provide references for health care reform in China.Methods:The new classical theory,game theory and behaviorism school were launched to process theoretical derivation of induced demand.The classical empirical research and the latest research progress were introduced to systemically review on supplier induced demand.Results:The generation of supplier induced demand was related with incentive system,the type of diseases and the crowd of research.Conclusion:It could effectively reduce the induced demand for health care that constraining hospital internal incentive,conducting medical supply side structural reform,developing the “Internet +medical” and building Diagnosis Related Groups (DRGs) payment system.

ObjectiveTo explore the roles of Toll-like receptor (TLR) 3,7 and 9 in the pathogenesis of pityriasis rosea.MethodsThis study recruited 40 patients with pityriasis rosea and 40 normal human controls.Reverse transcription-PCR was carried out to detect the expressions of TLR3,7 and 9 in peripheral blood lymphocytes of these subjects.ResultsThe mRNA expressions of TLR3,7 and 9 in peripheral blood lymphocytes were significantly higher in patients with pityriasis rosea than in the normal human controls (Z =4.239,3.745,2.658,all P ＜ 0.05).There was a positive correlation between the expression of TLR3 and TLR7(r =0.574,P ＜ 0.01 ) as well as between that of TLR3 and TLR9 (r =0.551,P ＜ 0.01 ) in the patients,while there was no correlation between TLR7 and TLR9 expression in the patients or between the expressions of TLR3,TLR7 and TLR9 in the controls.ConclusionVirus infection might be involved in the pathogenesis of pityriasis rosea via TLR pathways.

Guillain-Barré syndrome(GBS) has clinical characteristics:flaccid,symmetrical,ascending paralysis.Cranial nerves and respiratory muscle related,albuminocytologic dissociation in cerebrospinal fluid,and electrophysiological changes.GBS was believed to be an autoimmune perineuropathy.Recently,there were more and more reports about GBS spectrum disorders or GBS variant correlated with anti-GQ1b antibody or anti-GM1 IgG antibody et al.The GBS Classification Group presented the new clinical criteria in 2014,to enable neurologists and non-neurologists to diagnose GBS and all its variants using a simple yet all-inclusive classification system.

Objective To observe the clinical efficacy of acupuncture plus rehabilitation training in improving post-stroke dysphagia. Method A total of 60 patients with post-stroke dysphagia were randomized into a treatment group and a control group, 30 cases in each group. The two groups were intervened by basic treatment of internal medicine and swallowing rehabilitation training, and the treatment group was additionally given acupuncture treatment. The Standardized Swallowing Assessment (SSA), water swallowing test and Swallowing Quality of Life Questionnaire (SWAL-QOL) were evaluated in the two groups before and after the treatment. Result After the treatment, the SSA scores in the two groups were significantly decreased compared to those before the treatment (P<0.01), and the SWAL-QOL scores were significantly increased compared to those before the treatment (P<0.01); the SSA score in the treatment group was significantly lower than that in the control group (P<0.01), and the SWAL-QOL score was significantly higher than that in the control group (P<0.05). The water swallowing test classification after the treatment was significantly superior to that before the treatment in the treatment group (P<0.01), and there was a significant difference compared to that in the control group (P<0.05). Conclusion Acupuncture plus rehabilitation training can obviously improve the swallowing function of patients with post-stroke dysphagia, and the clinical efficacy was superior to single rehabilitation training.

Objective To explore the application values of magnetic resonance diffusion weighted imaging (DWI)and diffusion tensor imaging (DTI)in the early diagnosis of cerebral infarction.Methods 1 2 1 patients with single side cerebral infarction were di-vided into five groups by disease time,the brain examination was performed by conventional MRI,DWI and DTI in every case.The le-sions were observed and compared in different sequences imaging.Mean diffusivity(MD)and fractional anisotropy(FA)values of cere-bral infarction lesions and the symmetrical positions in normal hemispheres were measured and compared.The correlations between relative MD(rMD)value,relative FA(rFA)value and disease time were analyzed.Results The display rate on DWI in showing ultra-acute and acute cerebral infarction lesions was 100%,which was superior to that on other sequences of conventional MRI obviously (P<0.05).Compared with the healthy sides,MD values of infarction lesions were lower at ultra-acute and acute phase(P<0.001), but at sub-acute phase,there was no statistically difference between the affected and normal sides(P>0.05).MD value was higher at early chronic and late chronic phase(P<0.001);FA values had no consistent changes at ultra-acute phase(P>0.05),but at the later separate phases,FA values reduced successively(P<0.001).The rMD value of infarction lesions was positive correlated with disease time(rs=0.990,P<0.001).The rFA value of infarction lesions was negative correlated with disease time(rs=-0.994,P<0.001). Conclusion DWI is susceptive in showing cerebral infarction lesions at hyper-early phase.DTI can be used to determine the clinical phase and appraise the inj ured extent of cerebral infarction accurately by measuring the parameters.Combination of DWI and DTI can provide a basis for clinical individual treatment programs selection and prognostic evaluation.

Chemotherapy resistance is a great obstacle for effective treatment of ovarian cancer.Drug resistance of ovarian cancer is the results of combined action of multi- factors.Further study of drug resistancerelated genes can provide new ideas for reversing drug resistance fundamentally.

Objective To investigate the effects of different interventions on the biomechanic indexes in femur bones of ovariectomized rats with osteoporosis.Methods Eighty healthy female Sprague-Dawley rats,aged 3 months,were randomly divided into an ovariectornized(OVX,n=68)group and a sham-operation(Sham,n=12)group.At the 11th week after the operation,the OVX group was further randomly divided into a control group(n=11),an estradiol group(E2,n=10),a genisteine group(G,n=10),a treadmill exercise group(TE,n=10),a lithium chloride group(LiCl,n=10)and a whole-body vertical vibration group (WBVV,n=10).Then the rats began to receive different interventions as their group names implied.At the end of 8 weeks,their right femurs were isolated and the biomechanic parameters were detected using the three point bending test.Results (1)Both the maximum load and elastic load in E2,G,TE,WBVV and LiC1 groups were significantly higher than that of the control group,while no significant differences were seen in maximum deflection and elastic deflection.(2)The elastic stress,maximum strain,and elasticity modulus in E2,G,and WBVV groups were significantly higher than that of the control group,while no significant differences were seen in maximum stress and elastic strain among them.The maximum stress,elastic stress,maximum strain,and elasticity modulus in TE group were significantly higher than the control group while no significant differences were seen in the elastic strain.The maximum stress,elastic stress,and elasticity modulus in LiC1 group were significantly higher than the control group,but no significant differences were seen in maximum strain and elastic strain between them.Conclusion E2,genistein,treadmill exercise,whole-body vertical vibration,and LiC1 have quite similar effects on structural mechanics indexes of femurs in OVX rats with osteoporosis,but they have different impacts on the material mechanics indexes.

Objective To detect the levels of carotid intima-media thickness(CAIMT),serum homocysteine(HCY),malondialdehyde(MDA) and superoxide dismutase(SOD) activity,in order to investigate the correlation between carotid atherosclerosis(CAS) and serum HCY and oxidative stress in essential hypertension(EH) patients.Methods 50 patients with EH and 266 healthy controls were enrolled in this study.The color Doppler ultrasonography was used to detect CAIMT,and circulating enzyme method was used to detect serum HCY,and MDA levels were detected by TBA and SOD activity was detected by colorimetric assay of and the results of the examination were statistically analyzed.Results The incidence rate of CAS in EH patients was 62.8%(167/266),associated with age,disease and related course,and there was no significant difference in gender.In EH concurrent CAS group,the serum HCY level,MDA level and SOD activity were (28.06±6.94)μmol/L,(13.10±2.75)μmol/L and (69.73±6.51)U/mL,respectively,which of the control group were (11.74±3.62)μmol/L,(4.71±1.18)μmol/L and (136.07±10.16)U/mL,respectively,the levels of serum HCY and MDA in EH complicated CAS group were significantly higher than those in the control group(t=7.118,6.326,all P<0.05),and the activity of SOD was significantly decreased.The serum HCY level was positively correlated with MDA level(r=0.493,t=9.207,P<0.05),and negatively correlated with serum SOD activity(r=-0.562,t=11.040,P<0.05).Conclusion EH patients have high levels of HCY,MDA and SOD activity of low levels.HCY level is significantly increased and oxidative stress is increased in CAS patients.Oxidative stress is associated with serum HCY level.