Cardiovascular Diseases ; etiology ; prevention & control ; Humans ; Metabolic Syndrome

Cardiovascular Diseases ; prevention & control ; China ; Humans

In order to investigate the mutation of HBV polymerase gene reverse transcription conserved region (P region) in chronic hepatitis B (CHB) patients, 212 CHB patients who took antiretroviral treatment with nucleotide analogues were chosen. The drug resistance mutations of HBV P region and HBV genotype were detected by Pyrosequencing. Sequence analysis showed that the drug resistance sites of HBV P region located at sites 173; 180; 181; 184; 204; 236 and 250. The main site of HBV P region drug resistance was 204 and 180, accounting for 35.8% and 23.5%, respectively. There were significant differences in the mutation rate of site 180 among different age groups. There were also significant differences in the mutation rate of site 204 among younger than 30 age group, 41 to 50 age group and 51 to 60 age group. (P < 0.05, P < 0.01). The mutation rate of site 180 combined with site 204 was 66.6%. The mutation rate of site 181 combined with site 236 was 23.3%. The age of C genotype infected patients was significantly older than B genotype infected patients (P < 0.01). M204V/I mutation mostly existed in the form of joint L180M mutation, the mutation rate was age-related. The detection of HBV genotypes and drug resistance sites of HBV P region have important clinical implications for the treatment and prognosis of patients with CHB.
Adult ; Aged ; Antiviral Agents ; pharmacology ; China ; Drug Resistance, Viral ; Female ; Gene Products, pol ; genetics ; Genotype ; Hepatitis B virus ; classification ; drug effects ; enzymology ; genetics ; Hepatitis B, Chronic ; drug therapy ; virology ; Humans ; Male ; Middle Aged ; Mutation, Missense ; Young Adult

Radioimmunotherapy using monoclonal antibodies incorporated with radionuclide has been showed to be an effective agent for refractory non-Hodgkin's lymphoma (NHL). Many anti-CD20 antibodies labeled with radionuclide, such as 90Y-ibritumomab tiuxetan (Zevalin) and 131I-tositumomab tiuxetan (Bexxar), have been reported to be effective for the treatment of patients with relapsed or refractory low-grade, follicular, or transformed NHL. This review summarizes the current advance in clinical trials and studies of Zevalin and Bexxar for the treatment of NHL patients.

BACKGROUND:Several studies have demonstrated that bone marrow mesenchymal stem cells (BMSCs) inhibit the proliferation and activation of T lymphocytes, exerting a role of negative immunological regulation. OBJECTIVE: To induce rat BMSCs to differentiate into neuron-like cells in vitro using all-trans retinoic acid and to investigate the effects of differentiated cells on T lymphocyte proliferation.DESIGN, TIME AND SETTING: A cytological in vitro observation was performed in Guangdong Medical College in March 2008.MATERIALS: Two male 4-week-old Sprague Dawley rats were provided by the Laboratory Animal Center of Guangdong Medical College. Fresh healthy human blood was provided by the Department of Clinical Laboratory, Guangdong Medical College. METHODS: Rat BMSCs were isolated by adherent method and were passaged in vitro. Cells of passage 5 were pre-induced with Low glucose-dulbecco's modified eagle's medium (LG-DMEM) containing 0.3 mg/L all-trans retinoic acid and 10% fetal bovine serum. Twenty-four hours later, aforementioned LG-DMEM was discarded and LG-DMEM containing 0.6 mg/L all-trans retinoic acid was added to induce cells differentiation into neuron-like cells. Fresh healthy human blood was taken to prepare responding cells. Rat BMSCs, as stimulator cells, were included for one-way mixed lymphocyte reaction. Four groups were designated. Control group: 100 μL of responding cells at a concentration of 1×109/L; Experimental group 1:1×104 neuron-like cells + 100 μL of responding cells; Experimental group 2:1×105 neuron-like cells + 100 μL of responding cells; Experimental group 3:1×106 neuron-like cells + 100 μL of responding cells.MAIN OUTCOME MEASURES: Morphological observation of induce-differentiated cells, identification of nerve cells, and one-way mixed lymphocyte reaction results.RESULTS: Fifty minutes after addition of inducing medium, under the optical microscope, BMSCs exhibited a typical morphology of perikaryon. Three hours later, most of cells became into bipolar or multipolar neuron-like cell appearance with cell bodies and processes. Immunocytochemical staining results showed that majority of cells exhibited neuron specific enolase- and nestin-positive expression and glial fibrillary acidic protein-negative expression. Compared with the control group, radionuclide counts per minute were significantly reduced in each experimental group (P<0.05). There was significant difference in radionuclide counts per minute between experimental groups (P<0.05). With increasing BMSCs amount, the inhibitory effects on T lymphocyte proliferation were more evident.CONCLUSION: AII-trans retinoic acid can induce neuron-like cell differentiation of rat BMSCs in vitro. The neuron-like cells can inhibit human T lymphocyte proliferation in a dose-dependent manner.

A large number of studies have confirmed that antiplatelet agents reduce the relative risk of stroke,myocardial infarction,or death by an average of 22％.However,many patients still have thrombotic events during the period of taking anti-platelet agents,and this is called anti-platelet agent resistance.Its incidences reported are very different.The incidence of aspirin is 3％ to 85％,and that of clopidogrel is 28％ to 44％.The exact cause of antiplatelet agent resistance remains unclear.It may be associated with several factors,including decreased drug bioavailability,genetic polymorphisms,activation of other platelet activation pathways,and increased circulating platelets.Currently,a variety of laboratory methods have been used to detect antiplatelet agent resistance,its criteria are different.In addition,the response measures of antiplatelet agent resistance also have no conclusion,and this has brought greater difficulties for the prevention and treatment of stroke.

During the past few years,international nephrology and emergency medicine tend to change the nomenclature from acute renal failure to acute kidney injury (AKI) .In pediatrics,primary renal diseases are no longer the most common cause of AKI.Instead,the etiology is likely multifactorial,related to a combination of several factors,especially in the intensive care unit.And AKI not just significantly prolongs the length of stay in the pediatric intensive care unit,but is associated with a significant increase in mortality.In this article,we will simply review the etiology and epidemiology of AKI,and analyse the differences between RIFLE criteria and AKIN criteria.

Objective To evaluate the application efficacy of responsibility system for holistic nursing system in high-quality nursing service in the department of respiratory medicine.Methods Department of respiratory medicine unit which was the quality nursing service demonstrated unit in our hospital was selected.The nursing responsibility-bound grouping system was first performed and the nurse-incharge would provide the patients with whole and continuous nursing service.Before and 6 months after the application,the nursing job satisfaction was conducted and the nursing grouping system satisfaction was also evaluated among nurses and doctors.Results Six months after the application of nursing responsibility-bound grouping system,the patient satisfaction with nursing job was raised obviously in the unit.Conclusions The application of responsibility-bound grouping system can not only promote the activity but also mobilize the enthusiasm of nurses,and then high-quality nursing service was resulted.So the service system was worthy of clinical application.

Objective To investigate the roles of aberrant expression of c-myc,c-myb,and c-erbB-2 in the development of breast cancer and its clinical significance.Methods Immunohistochimical technique (S-P method)was used to detect the expression of c-myb,c-myc and c-erbB-2 protein in 150 cases of breast cancer and 30 cases of benign proliferative lesions.heir relation to clinical pathological parameters were analyzed.Results The protein expression levels of c-myc,c-myb,and c-erbB-2 in breast cancer were higher than those in benign proliferative lesions and the difference was significant(all P ＜0.05).Expression of c-myc protein had obvious relationship to histological grade,lymph nodes metastasis and pathological types(all P ＜ 0.05).Expression of c-myb protein related significantly to histological grade (P ＜ 0.05).c-erbB-2 was associated with the tumor size,grading,PR expression (all P ＜ 0.05).The association among the three kinds of genetic proteins was observed.Conclusion Expressions of oncogenes c-myc,c-myb,and c-erbB-2 proteins are higher in breast cancer and lower in benign proliferative lesions.The difference is significant.They are related to the grading and some other prognostic factors such as tumor size,pathologic types,PR expression and lymph node metastasis.The results suggest that these oncogenes are activated in the development of breast cancer and provoke cancerous cells multiplication.Expressions of oncogenes c-myc,c-myb and c-erbB-2 mightbe considered to be the prognostic indicators of breast cancer.

As a functional imaging method, positron emission tomography (PET) is widely used in tumor diagnosis, pathological classification, stage assessment, and clinical outcome evaluation. Combination of metabolic information acquired from ~(18)F-fluorodeoxyglucose (~(18)F-FDG) PET with pathological grading results is helpful for further defining the grade of sarcomas and predicting prognosis. ~(18)F-FDG PET appears to be superior to other imaging modalities in detecting bone metastases or pulmonary metastases of sarcoma patients, so it could be used in clinical staging and restaging of sarcoma. Tumor-to-background ratio (TBR) and standardized uptake value (SUV) are two important parameters for quantitative analysis and are helpful for assessing chemotherapy response of tumor. PET imaging offers important information to help maximize the clinical benefit of patients with sarcoma. This article reviews the clinical value of ~(18)F-FDG PET and ~(18)F-FDG PET/CT in diagnosis of sarcoma.