People′s misunderstandings about the radiological check in health examination: Equalize the price of the medical check equipment with the accuracy of the check .The health examinees′misunderstanding about the harm which X-Ray can cause , thinking that low dose chest CT only can do very little harm to human body .The health examination unit makes the rate of finding out early lung tumor a main basis of assessing a medical personnel ′s achievement , which caused medical staff go against epidemiological laws when diagnosing tiny nodules .Misun-derstandings about some biological features such as the scale or the growing speed of the nidus , and laying exces-sive importance on the check accuracy , which caused some examinees received excessive X -Ray, overdiagnosis and overtreatment .So, people must treat radiological check in health examination rationally and dialectically , in order to further realize the legitimation and rationalization of radiological check .

As a part of the central nervous system,retina shares many characters of the brain,including many of the functions and dysfunctions of microglia.Microglia plays important roles in multiple inflammatory procedures and degenerative diseases of the central nervous system and retina.Retinal microglia is involved in ocular inflammatory,age-related macular degeneration and diabetic retinopathy.These cells have also been identified in brain tumor and retinoblastoma.They can secrete various cytokines and growth factors that may contribute to the successful immune evasion and therefore promote the growth and invasion of tumor.To better understand the function of microglia is essential for us to develop the immune-based treatment strategies against central nervous system tumor and retinoblastoma.

ObjectiveTo evaluate the effect of health education combined with psychological counseling on mental state of patients with coronary heart disease complicated with anxiety and depression. Methods70 cases of patients with coronary heart disease with anxiety and depression were divided into the observation group and the control group with 35 cases in each group.The control group received regular professional care,while the observation group was given health education combined with psychological counseling on the basis of regular professional care.The SAS and SDS score was compared between the two groups. ResultsAfter treatment,SAS and SDS score of two groups apparently improved.After treatment,SAS and SDS score of the observation group was less than the control group. ConclusionsHealth education combined with psychological counseling for patients with coronary heart disease complicated with anxiety and depression can effectively alleviate the anxiety and depression emotion of patients and increase life quality of them.

Adenovirus as gene transfer vector is characterized by high transfection efficiency,high titer,good stability in target cells and low pathogenicity,and has been widely used in gene therapy.Compared to first-and second-generation adenovirus vectors,the third-generation adenovirus vectors have unique advantages for gene therapy because of their low immunogenicity and high capacity.However,the clinical application of the third-generation adenovirus vectors is hampered by the existance of helper contamination and difficulties in their large-scale production.

Objective To discuss the clinical observation of Montmorillonite combined with Compound Eosinophil-Lactobacillus Tablet in the treatment of pneumonia infants of antibiotic associated diarrhea (AAD).Methods Eighty pneumonia infants with antibiotic associated diarrhea were selected,they were divided into two groups according to the random number table method.The observation group (41 cases) was given Montmorillonite.The control group (39 cases) was given Montmorillonite and Compound Eosinophil-Lactobacillus.The efficacy of Montmorillonite combined with compound Eosinophil-Lactobacillus Tablet in the treatment of pneumonia infants of antibiotic associated diarrhea was evaluated by efficacy,clinical symptom,immune function changes and adverse reactions during the treatment period.Results After treatment,the effective rate of observation group was higher than that of the control group (P ＜ 0.05).After treatment,the fever time,correcting dehydration time,and antidiarrheal time of observation group was shorter than that of the control group (P ＜ 0.05).After treatment,the serum IgG,IgA,and T lymphocyte subsets of CD3+,CD4+ levels were significantly increased in the observation group (P ＜ 0.05).There was no statistical significance on CD8+ before and after treatment.In contrast,there were no statistical significance on the serum immunoglobulin and T lymphocyte subsets before and after treatment in the control group.During the treatment period,no adverse reaction occurred in two groups.Conclusion In summary,Montmorillonite combined with Compound Eosinophil-Lactobacillus Tablet had a good effect on AAD.They could quickly improve the symptoms of diarrhea and immunoglobulin levels in children.It was worthy of clinical use.

Viral infections remain a major cause of morbidity in patients with immunodeficiency,such as recipients of hematopoietic stem cell transplantation (HSCT).Adoptive transfer of donor-derived virusspecific cytotoxic T lymphocytes is a strategy to restore virus-specific immunity to prevent or treat viral diseases and has been tested in the clinical setting for more than 20 years.The 55th ASH annual meeting reported lots of basic and clinical experience about CTL and summarized lots of trails to evaluate it,which will give us some new thought about the antivirus therapy after HSCT.

Objective To explore and establish the possible method of low-intensity pulsed ultrasound(LIPUS) irradiation directly combined with SonoVue microbubbles could enhance 5-azacytine (Aza) induced cardiomyogenic differentiation of human bone marrow mesenchymal stem cellin(MSCs)vitro,initially explore the appropriate irradiation condition,and to provide experimental basic data for ultrasound-mediated microbubble destruction application in MSCs transplantation for acute myocardial infarction.Methods (1) In order to screen out the appropriate ultrasound irradiation intensity and time without conspicuous harm to MSCs,stem cells were exposed to different ultrasound intensity irradiation (0.11,0.33,0.55,0.77,0.99 W/cm2) and time (0,30,60,90 s) and then cell proliferation determined by methyl thiazolyl tetrazolium(MTT).In order to screen out the appropriate microbubble-to-cell ratio without conspicuous harm to MSCs,stem cells of different microbubble-to-cell ratios (0,10,50,100,150) were exposed above the screened ultrasound irradiation intensity and time and then cell proliferation determined by MTT.(2) MSCs were divided into four groups and induced cardiomyogenic differentiation by different inducing systems in vitro as follows:no-treatment group,5-Aza inducing group(10 μmol/L),microbubble and ultrasound group,5-Aza inducing (10 μmol/L) with microbubble and ultrasound group,followed by four weeks of further culture.The morphological changes were studied daily under phase-contrast microscope,then the expression of cardiac troponin-T (cTnT) was detected by immunocytochemistry method to analyze and compare differentiation rate of cardiomyocyte-like cells in each group.Results (1)The direct ultrasound irradiation condition of no conspicuous harm to MSCs,but with destruction was intensity of 0.55 W/cm2,exposure time of 30 s and microbubble-to-cell ratio of 50.(2) This study confirmed the feasibility of direct ultrasound exposure of LIPUS on MSCs in vitro.(3) At 28 days after induction,the stem cells of 5-Aza inducing group and 5-Aza inducing with microbubble and ultrasound group expressed cTnT and the positive rate of the latter was higher than the former by immunocytochemistry (13.69％ vs 34.13％,P ＜0.05).Conclusions The appropriate ultrasound direct irradiation condition was intensity of 0.55 W/cm2,exposure time of 30 s and microbubble-to-cell ratio of 50.Appropriate conditions of LIPUS could enhance 5-Aza induced cardiomyogenic differentiation of MSCs in vitro.

Using proliferating inhibition test, the effects of three cultivars of black mushroom on the growth of gastric carcinoma cell in vitro were observed. We have found that the extracts of all three cultivars of black mushroom had inhibiting effects on the growth of tumor cells in medium at some levels, especially Cr-02 was the most evident one.The results suggest that black mushroom has some anti-tumor effects, and it is worthwhile to study farther for verification.

Toll-like receptors (TLRs) can recognize pathogens associated molecular of micro-organisms,leading to activation of the downstream signal transduction pathway and participate in innate and adaptive immune response.TLRs can also recognize endogenous danger signaling molecule and therefore be involved in pathogenesis of many low-grade chronic inflammatory and autoimmune diseases.TLRs are always expressed on immune cells,and recent studies confirmed that retinal pigment epithelial (RPE) cells also express TLRs.This review focuses on the research progress of fundus diseases and TLRs,such as the recognition of exogenous pathogenic microorganisms and endogenous danger signals in fundus,induction of inflammatory response,phagocytosis of photoreceptor outer segment by RPE and angiogenesis of fundus diseases.

A one time large dose of selenium with label was injected to Se deficient rats. Platelets, liver and PPP were assayed for GSH-Px activity and determined the uptake of Se. The results showed that platelet GSH-Px activity would also be a good index in reflecting the abrupt change of Se status. It can be changed rapidly and significantly. The results also demostrated that platelet GSH-Px trends to reflect GSH-Px in the liver which is the organ with the most labile Se pool. Platelet GSH-Px may be a suitable index of selenium status for determine the bioavilability of selenium from various food sources in short-term human studies. When different form of Se was given, GSH-Px activity in platelet, liver and PPP expressed on a protein basis was similar in the selenite and selenomethionine administered groups. However, Se uptake of platelet, liver and PPP was greater in the selenomethionine versus the selenite group, indicating that selenomethionine was being taken up nonspecifically into platelet protein other than GSH-Px. This fact was also shown by the lower platelet GSH-Px specific activity. There might be another metabolic way for Se. More work is needed to clarify metabolism of selenium in tissue.