Objective To implement active screening measures for patients in intensive care unit (ICU),early de-tect patients with multidrug-resistant organism (MDRO)colonization,implement contact isolation measures,pre-vent and control MDRO cross transmission.Methods The nasal and rectal swabs of 240 patients who were admit-ted to ICU from September 2012 to May 2013 were performed bacterial culture,patients with colonization of methi-cillin-resistant Staphylococcus aureus (MRSA),extended-spectrum β-lactamases (ESBLs)-producing Escherichia coli ,and ESBLs-producing Klebsiella pneumoniae were conducted contact isolation.Clinically isolated MDROs from ICU patients in September 2011-August 2012 (before active screening)and September 2012-August 2013 (after active screening)were collected and performed antimicrobial resistance analysis.Results Of 240 patients, nasal swabs screening test showed that there were 56(23.33%)patients who were colonized with MRSA,including 22(39.29%)were colonized at the admission to ICU and 34(60.71%)during the ICU stay.Rectal swabs screening test showed that there were 105(43.75%)patients who were colonized with ESBLs-producing Escherichia coli and Klebsiella pneumoniae ,72(68.57%)were colonized at the admission to ICU,and 33(31.43%)were colonized dur-ing the period of ICU stay.The incidence density of MDROs before and after implementing active screening were 28.56‰ and 13.71‰ respectively,difference was significant (P < 0.05;RR,2.08 [95%CI ,1.582 - 2.743]). Conclusion MDRO colonization rate is high among ICU inpatients,implementation of comprehensive prevention and control measures against MDROs based on active screening can reduce the spread of MDROs in ICU.

Objective To investigate the clinical and pathological features of prostate cancer with low level of serum prostate-specific antigen (PSA) in elderly patients.Methods Data of 328 patients with prostate cancer were retrospectively analyzed.Clinical and pathological data of 4 prostate cancer patients with low serum PSA level were analyzed.Potential risk factors and diagnostic methods of prostate cancer with low serum PSA level were discussed based on the clinical data combined with literatures.Results Mean age of the 4 patients was 71.3 years.Mean PSA value on admission was 1.96 μg/L.2 patients had abnormal digital anal examination results.2 patients were pathologically diagnosed as adenocarcinoma after puncture,among which 1 had duct adenocarcinoma,and the other 2 patients were pathologically diagnosed as neuroendocrine carcinoma after puncture.2 patients with neuroendocrine carcinoma of prostate were treated with endocrine therapy,and the other 2 patients were treated with radical prostatectomy plus auxiliary endocrine therapy.Conclusions Prostate cancer with low serum PSA level has an insidious onset,which is prone to miss the diagnosis.It should be paid sufficient attention for the diagnosis,and monitoring of prostate cancer is independent on PSA.Prostate cancer with low serum PSA level should be diagnosed in combination with some basic examinations such as serum free prostate specific antigen,prostate specific antigen density and digital rectal examination,et al.

Objective To explore the significance and practical value of videomorphometric analysis in differential diagnosis of the thyroid gland in benign and malignant follicular lesions. Methods A videomorphometric analysis of surgically resected thyroid follicular tumors and normal thyroid gland was respectively performed with CMM-3 image analysis system. 50-100 tumor cell nuclei each case were studied at random for their area, perimeter, average diameter, shape factor and atypical index.Results Hightly significant statistical difference was observed in every parameter between normal and malignant, benign and malignant cases.Conclusion It is suggested that videomorphometry is an useful tool for the differential diagnosis of benign from malignant tumors of thyroid gland.

Objective To study the expression characteristics of cytokeratin 19(CK19) in different live tissues from victims with third-degree burns to explore the possible mechanisms of tissue reparation and regeneration in orthophoria.Methods 10 young victims with third-degree burns were included in this study.Alive tissues at different regeneration stages were studied by immunohistochemistry with streptavidin-biotin-peroxidase method using specific anti-CK19 monoclonal antibody. Only cytoplasm expression was considered as specific.Normal skin tissue and chronic skin ulcer were used as controls.The study was focused on the distribution and morphological features of CK19-positive cells.Results ⑴In normal skin ,CK19-positive cells were seen in basialis layer of epiderm and cutaneous appendages.⑵CK19-positive cells were not found in subcutaneous tissue at 3～6 days after the injury,but they were seen in granulation tissues.⑶A lot of CK19-positive cells were detected in early regeneration tissues.⑷In late regeneration tissues,CK19-positive cells were detected in basialis layer of epiderm and cutaneous appendages.⑸Advanced regenerationed epidermal tissue was similar to that of normal.⑹No CK19-positive cells were observed in all of 6 cases with chronic skin ulcer.Conclusion It is possible that victims with third-degree burns could be healed by tissue regeneration orthophoria.

Objective To investigate the effect of Calponin-1 suppression on human myometrium cells through adenovirus mediated siRNA. Methods Human uterine smooth muscle tissues were digested with enzymes, cultured and confirmed with immunocytochemistry. Aadenovirus siRNA-Calponin-1 plasmid was transfected into primary cultured uterine smooth muscle cells in vitro. The expressions of Calponin-1 mRNA and protein were analyzed by RT-PCR and Western blot, respectively.Results The pAdEasy-pShuttle-U6-Calponin-1 siRNA plasmid was successfully constructed, and Calponin-1 siRNA mediated by recombinant adenovirus resulted in markedly reduced expression of Calponin-1 mRNA and protein in human myometrium cells. The gray values of Calponin-1 mRNA in the uterine smooth muscle cells in the experimental, blank control, and empty vector groups were 316.3±39.2, 1048.5±126.4 and 1027.2±127.5, respectively. The gray values of Calponin-1 protein were 323.3±43.2, 1021.5±143.4, and 1019.2±144.5,respectively. The difference between the experimental group and the blank control group as well as the empty vector group was significant (P< 0.05). There was no significant difference between the empty vector group and the blank control group (P>0.05).Conclusion The pAdEasy-pShuttle-U6-Calponin-1 siRNA plasmid can inhibit the expression of Calponin-1 in human myometrium cells in vitro,which may be a useful approach to determine the role of Calponin-1 in delivery.

Objective The purpose of this study was to investigate the mechanism of action of polypeptide extracts of Eupolyphaga sinensis Walker ( ESW) against oxidative aging.Methods Mice were intraperitoneally injected D-galac-tose for consecutive 20 days to establish an aging mouse model.The model mice were administered with different doses of ESW polypeptide (0, 40, 80, 160 mg/kg/d).The normal activity, movement and anti-stress ability of the mice were ob-served.The activity of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-PX) in blood and different tissues and the content of glutathione ( GSH) and malondialdehyde ( MDA) of the aging mice were assessed by xanthin oxidase activity measurement and spectrophotometry, respectively.The expression of nuclear factor erythroid 2-re-lated factor 2 (Nrf2) in Caco-2 cells was detected by immunofluorescence.Results Comparing the control and polypep-tide groups, there were significant decreases of body weight gain, organ indexes, anti-stress ability and activity capacity, the activity of SOD, CAT, GSH-PX and the content of GSH, and an increase of the content of MDA in blood and different tissues in the aging mice.With the increasing dose of polypeptide extracts of ESW, the body weight gain, organ indexes of the liver, spleen and kidney were significantly increased, the static and dynamic exercise time was prolonged in the poly-peptide group, and their abilities of hypoxia tolerance and heat tolerance were close to that of normal controls.The SOD, CAT, GSH-PX activity and GSH level in blood and different tissues were significantly increased, but MDA content de-creased.The expression of Nrf2 in Caco-2 cell nuclei was significantly increased in the polypeptide group, close to that of the positive control group.Conclusions The results of our study show that polypeptide extracts of ESW improve the anti-stress and antioxidative capacity in D-galactose-induced mouse models of oxidative aging by initiating Nrf2-ARE antioxidant signaling pathway, therefore, delay the oxidative aging in mice.

Nowdays, Chinese medicine training has two modes, apprentice education and college education. The two modes showed the differences in the source of students, teaching content, methods and effect of the education. The two models should be combined to cultivate excellent talents of Chinese Medicine. Additionally, different training should be conducted according to different goals. This article focused on the traning mode of Chinesae medicine talents at Beijing University of Chinese Medicine in recent years, put forward some issues in future education and provided some promoting strategies to combine traditional apprentice education and college education.

Because of ignoring the basic knowledge training, the medicine graduates lack ba-sic knowledge of clinical pathology, which has seriously affected their improvement of medical skills. The paper analyzes the status of pathology teaching in clinical medicine graduates and the necessity to strengthen clinical pathology general education. Then it proposes measures about enhancing clinical pathology general education, so as to increase the basic clinical pathology knowledge of medical grad-uates.

Objective To explore the relationship between dietary patterns and non alcoholic fatty liver disease (NAFLD) in Karamay adults.Methods A total of 2377 subjects aged 20-75 years old who took health check-up during April and June 2011 were included in this investigation.Body mass index (BMI),waist to hip ratio (WHR),systolic blood pressure (SBP),diastolic blood pressure (DBP),triglyceride (TG),total cholesterol (TC),aspartate aminotransferase (AST) and serum uric acid (SUA)were measured.Food intake patterns and life style of the participants were accessed by using food frequency questionnaire (FFQ).Main component analysis and multivariate logistic regression model were used to explore the association of dietary patterns with NAFLD.Results Five dietary patterns were identified,including condiment dietary pattern, western dietary pattern, conventional healthy dietary pattern,snacks and bean pattern,and high protein dietary pattern.Subjects of condiment dietary pattern,western dietary pattern or conventional healthy dietary pattern showed significantly different prevalence of NAFLD (x2 values were 149.873,8.247 and 18.766,respectively; all P ＜ 0.05).In condiment dietary pattern,age,BMI,WHR,SUA and TG were significantly different in Q4 group (F values were 8.42,5.64,12.78,10.72 and 9.63,respectively; all P ＜0.05).For those with western dietary pattern,age,WHR,SBP,SUA,TC and TG showed significant different trend (F values were 9.84,6.87,6.11,10.61,6.87 and 8.13,respectively; all P ＜ 0.05).However,subjects with conventional healthy dietary pattern showed a significant different trend of age,BMI,WHR,SBP,SUA and AST (F values were 19.13,11.09,13.89,6.11,15.12,6.19,respectively ; all P ＜ 0.05).After age,BMI,WHR,SBP,SUA,AST,TC and TG were adjusted,the risk of NAFLD of those with condiment pattern or western pattern were significantly increased (odds ratio (OR) were 1.33 (95％ confidence interval (CI) 0.95-1.87) and 1.36 (95％ CI 0.979-1.902),respectively).Conclusion Dietary pattern may be associated with NAFLD.People need to learn healthy dietary habit to prevent NAFLD.

Objective To explore the effects of movement on hippocampal β-amyloid protein ( Aβ ) and amyloid precursor protein (APP) in senescence-accelerated and senescence-prone (SAMP8) mice, and the mechanism by which movement improves learning and memory in mice with a model of Alzheimer's disease. Methods Forty 3-month-old SAMP8 mice were divided randomly into a movement group and a control group. The movement group was trained with a running wheel 10 min daily, 5 days a week in the first month, and 20 min daily in the second month. Morphological changes in the hippocampus were observed under the microscope after HE staining. The expression of Aβ in the hippocampus was detected by immumohistochemical methods and APP mRNA expression was detected by RT-PCR two months later. Results HE staining showed neuron degeneration and death, chromatin condensation and vacuolar degeneration in the hippocampus of the 5-mouth-old SAMP8 mice of the control group. The movement group showed less neuron degeneration and death, and the morphology of most cells was normal The expression of Aβ in the hippocampus of the 5-month-old SAMP8 mice in the movement group was significantly lower than that in the control group. APP mRNA expression levels in the movement group were also significantly lower.Conclusions Movement can delay neuron degeneration and down-regulate Aβ and APP mRNA expression levels in the hippocampus of SAMP8 mice. It may be an important mechanism by which movement improves learning and memory in mice with a model of Alzheimer's disease.