Acute Disease ; Child ; Gene Expression Profiling ; Humans ; Leukemia ; diagnosis ; genetics ; therapy

The practice of English teaching of microbiology course using the original edition of Microbiology (Prescott LM et al., 5e, 2002) as textbook have been carried out for two years for undergraduate students majoring in Biology. The strengths of this book are comprehensive coverage, flexibility of organizing, and emphasis on the enhancing the overall ability of students. Its content is excellent with fundamental knowledge, systematic arrangement and up-to-date currency, which helps instructor to construct a suitable system in the course structure and curriculum, as well as to enrich the teaching content and to increase teaching effectiveness. The selection of original edition of English textbook in microbiology course is useful to train high-quality biological talents possessing international view and the adaptive ability of globalization process.

Objective To investigate human immunodeficiency virus type 1 (HIV 1)specific CD8'T cell responses and related human leukocyte antigenⅠ(HLA-I)restriction sites.Methods Four Epstein-Barr virus (EBV)strains-transformed B-lymphoblastoid cell lines (BLCL)from periph eral blood monocytes (PBMC)of 4 healthy individuals were established.Using synthesized peptides in HIV-1 Gag,Vif and Nef regions as epitopes and using BLCL as antigen presenting cells (APC), the frequency of interferon-7(IFN-?)secreting cells in CD8 T cells from a HIV-infected long term nonprogressor by enzyme-linked immunospot (ELISPOT)assay in vitro were assessed.Moreover, matching analysis of HI.A-Ⅰrestriction sites were performed.Results HIV-1 epitopes were presen ted restrictively by HLA-Ⅰmolecules in specific CD8 T cell responses,and this antigen presenting had high specificity.HLA-Ⅰrestriction sitesA03,A26,C04andC08 contributed to presentepitopes in HIV-1 C-ag region,A03 and C08 to HIV-1 Nef as well.Conclusion HLA-Ⅰrestriction sites may include A03,A26,C04 and C08 in HIV-1 Gag region,and A03,C08 in Nef region.

Objective To observe the effect of continued nursing on the long-term nasal feeding to elderly patients after discharge.Methods Toally 60 elderly discharged patients between January 2014 to December 2014 were evenly divided into observation and control groups with radom digit table the control group received routine nursing before discharge and after it and the observation group received continued nursing.The two groups were compared in terms of nasal feeding-induced complication,nursing satisfaction,care capability of patients' caregivers.Result The complication rate in the observation group was significantly lower,the nursing satisfaction was significantly higher and the care capability of caregivers were significantly better as compared to those of the control group (P ＜0.05).Conclusion Continued nursing can improve nursing satisfaction,train the care capacity of caregivers,reduce the complications for the old patients who need long-term nasal feeding after discharge.

Adult ; Analysis of Variance ; Burnout, Professional ; Chemical Industry ; Female ; Humans ; Male ; Middle Aged ; Personality ; Petroleum ; Regression Analysis ; Surveys and Questionnaires ; Young Adult

Carcinoma, Squamous Cell ; therapy ; China ; Head and Neck Neoplasms ; therapy ; Humans

Objective To understand the use of antiplatelet drugs in patients with coronary heart disease( CHD) ,and to compare the effect of different anti platelet drugs on cardiovascular events in patients with CHD,and to provide clinical evidence for the optimization of anti platelet therapy?Methods One thousand and twenty?three cases patients with CHD who were treated in the First Hospital Affiliated to Chongqing Medical University from April 2010 to June 2014 were chosen?On the basis of conventional treatment,according to the different anti platelet program,the patents were divided into A group(703 cases),B group(211 cases) and C group(109 cases)?Group A was treated with aspirin and clopidogrel,B group was treated with clopidogrel,and C group was given aspirin therapy?Cardiovascular events( MACE) and bleeding events were observed at 1 month,6 months and 1 year after treatment in the 3 groups?Results After treatment for 1 month,6 months and 1 year,the incidence rates of MACE in group A were 9?1%( 64/703) ,16?6%( 117/703) and 28?4%( 200/703) ,in group B were 14?6%(31/211),25?5%(54/211) and 37?9%(80/211),in group C were 16?5%(18/109),29?4%( 32/109) and 34?0%( 37/109)?After treatment for 1 month,6 months and 1 year,the incidence rates of MACE in group A was significantly lower than group B and C(P<0?05);after treatment for 1 month,6 months,the incidence rates of MACE in group B were lower than group C,while higher than group C after 1 year,but the differences were not signifiacnt( P>0?05)?There were no significant differences in total incidence of deaths,the recurrence rate of myocardial infarction and stent restenosis rate among the three groups ( P>0?05 )?After treatment for 1 month,6 months,the incidence of angina in group A was lower significantly than that in group B and C( P<0?05) ,but When the treatment time was extended to 1 year,there was no significant difference in the three groups(P>0?05)?At 1 year follow?up,the incidence of gastrointestinal bleeding in group A was slightly higher than that in group B and group C ( 4?3% vs? 2?4% vs?3?7%) , but the difference was not statistically significant ( P>0?05 )?Conclusion In the CHD patients receiving aspirin and clopidogrel dual antiplatelet therapy,the incidence of MACE was lower than that in patients with aspirin or clopidogrel treatment alone, especially a reduction in the incidence of angina,and without increase of the risks in the gastrointestinal bleeding events,but the advantages above waning with treatment time extended to 1 year.

Objective To investigate the acute phase adverse effects and influencing factors of adverse effects of diphosphonate treatment in the elderly patients with primary osteoporosis.Methods A total of 208 patients [male 25 patients,female 183 patients,age 60 ～ 93 with a average of (75.51 ± 7.73) years] with primary osteoporosis were selected from 1 Jan 2012 to 30 Nov 2015,admitted to Department of Geriatrics.According to the serious condition of osteoporosis and willingness of patients,208 patients were divided into zoledronic acid treatment group,alendronate treatment group,and pamidronic acid group,and received corresponding diphosphonate treatment.All kinds of adverse reactions of diphosphonate in each treatment group were closely to be observed after administration of diphosphonate in 3 days and 7 days.Results The incidence rate of adverse reactions in the zoledronic acid treatment group (59/134,44.03％;60/134,44.78％) was obviously higher than that in the alendronate treatment group (1/57,1.75％;1/57,1.75％),and the pamidronic acid group (3/17,17.65％;3/17,17.65％) after treatment of diphosphonate in three and seven days (P ＜ 0.05).In different generations,the incidence rate of adverse reactions in the zoledronic acid group and the pamidronic acid group after treatment of diphosphonate in three and seven days was not statistically significant (P ＞ 0.05).There were three patients suffering from severe acute kidney injure (AKI) and three patients suffering from hypokalemia in the 134 patients treatment with zoledronic acid.Conclusions There are obvious differences in the incidence rate of acute phase adverse reactions in the osteoporosis patients who received different treatment policy (P ＜ 0.05).The safety issues in the kidney function and electrolyte abnormality (such as hypokalemia) should be paid much enough attention in the primary osteoporosis patients who receive zoledronic acid treatment.

Objective To explore the feasible approach for establishment of a liver cancer model induced by N-nitrosodiethylamine(DENA)with Sprague-Dawley rat,and to provide ideal animal model for imaging diagnosis and interventional therapy.Methods One-hundred and forty male SD rats were administrated with 0.95 g/L DENA for 10 weeks,and MRI was performed for inspecting pathological changes of rat livers on the following week.When the liver tumor was proved then the rat will be the candidate for sequential procedures,otherwise the animal continued under observation until next MRI examination after 4 weeks.DSA was done in 64 rats'for detecting blood supply of liver tumors.Animals were sacrificed with an overdose of chloral hydrate,The representative tumor tissues were fixed in 10% formalin and 2.5% glutaraldehyde for light and electron microscopy analysis respectively.Alpha fetoprotein(AFP) and hepatocyte were assaied by immunohistochemistry technique in order to identify intrinsic trait of the harvested tumors.Results The earliest induced tumor was detected on 11th week and the latest was on 20th week by MRI,and the median period was 13.9 weeks.Tumor size ranged from 2 mm to 40 mm in diameter. The rate of single and multi-induced tumor was 9.7%(7/72)and 90.3%(65/72),respectively.87.7% (57/65)" of the induced multiple tumors was with hepatocirrhosis and 18.1% of these tumors combined with extrahepatic neoplasm or metastasis.Plenty blood supply was proved by DSA in most of those tumors. Tumors not only derived from hepatocyte but also manifested positive expression of AFP.Histological types of these tumors include hepatocellular carcinoma(HCC)(92.0%,66/72),intrahepatic cholangiocarcinoma (ICC)(4.0%,3/72),and combined HCC and ICC(4.0%,3/72),respectively.Electro-microscope analysis indicated that cytoplasm and organelle of induced tumors were abnormal distinctly compared with those of non-carcinomatous cells.Conclusion DENA can induce ideal rat liver cancer as a feasible animal model,MRI is the best approach for scrutinizing pathological changes of rat livers during induced period.

Objective To explore the value of multivoxel 1H-MRS in the differential diagnosis of corpus callosum lesions.Methods 17 patients with corpus callosum lesions confirmed by clinical or pathological method underwent MRS examination.These patients included 2 cases of lymphoma,4 cases of Marchiafava-Bignami disease,3 cases of glioma, 7 cases of infarction,and 1 case of multiple sclerosis.MRS features of lesions were analyzed.Results 2 cases with corpus callosum lymphoma revealed significantly increased Cho peak, decreased Cr and NAA peak,towering Lip peak.Among 4 cases with Marchiafava-Bignami diseases, 2 cases revealed increased Cho/Cr and decreased NAA/Cr,1 case showed normal,1 case revealed inverted Lac peak.For 3 cases with corpus callosum glioma,NAA peak decreased or disappeared,and Cho peak increased in varying degrees.7 cases with corpus callosum infarction revealed significant inverted Lac peak, and NAA peak decreased in varying degrees.1 case of multiple sclerosis revealed increased Cho peak,decreased NAA peak,and inverted Lac peak during acute period with enhancement,while these features returned normal during inactive period.Conclusion Multivoxel 1H-MRS plays an important role in the differential diagnosis of corpus callosum lesions.