Objective To explore the value of enzyme‐linked immunospot(ELISPOT ) assay in the diagnosis of acquired immu‐nodeficiency syndrome(AIDS) patients with Mycobacterium tuberculosis infection .Methods 42 hospitalized AIDS patients with Mycobacterium tuberculosis infection and 60 non‐tuberculosis hospitalized patients with diseases of respiratory system in the same period were recruited as observation group and control group ,respectively .ELISPOT assay ,tuberculosis antibody(TBAb) test and tuberculin skin test(TST) were performed for all the patients ,respectively .The sensitivity ,specificity and accuracy of the 3 meth‐ods were comparatively analyzed .Results The sensitivity ,specificity and accuracy of ELISPOT were 92 .9% ,93 .3% and 93 .1% . These of TBAb were 54 .8% ,71 .7% and 64 .7% ,and of TST were 47 .6% ,53 .3% and 51 .0% ,respectively .There were significant differences among three methods in sensitivity ,specificity and accuracy(P<0 .05) .The sensitivity ,specificity and accuracy of ELIS‐POT were the highest in the 3 methods(P<0 .05) .There were no significant differences between TBAb test and TST in sensitivi‐ty ,specificity and accuracy(P>0 .05) .Conclusion ELISPOT assay has relatively high diagnostic value in AIDS patients with My‐cobacterium tuberculosis infection .

Animals ; China ; Echinococcosis ; diagnosis ; Humans ; Malaria ; diagnosis ; Schistosomiasis ; diagnosis

Objective To examine the effect of PDGF-αreceptor on proliferative vitreoretinopathy (PVR) in rabbits. Methods Different concentrations of PDGFR-α ASODN were mixed with lip 2000, and the final proportion of PDGFR-α ASODN/lip2000 complex was 1∶1、1∶2.5 and 1∶5 respectively. All the complexes were incubated with cultured human retinal pigment epithelium for 24 hours before transfection. The rabbits were divided into group A (RPE cells)、group B and C (1.0、2.0 μmol/L PDGFR-αASODN lipofectin transfection of RPE cells) with 8 eyes each. The level of PVR were estimated by indirect ophthalmoscope examination; the fundus changes were estimated by histopathology; and the expression of PDGFA was detected by immunohistochemistry. Results The highest transduction efficiency was PDGFR-α ASODN/ lip2000 ratio to 1∶2.5. The degree of proliferative vitreoretinopath , the fundus changes and the density of PDGFA in group B and group C were significantly lower than that in group A, while group C more lower than group B. Conclusion PDGF-αreceptor antisense oligonucleotides can inhibit the development of experimental proliferative vitreoretinopathy.

Objective To investigate the effect of steroid receptor coactivator family in initiation, development, treatment and prognosis of breast cancer. Methods The literatures in recent years which have related to the effect of steroid receptor coactivators in breast cancer are reviewed. Results Steroid receptor coactivators are essential for several kinds of steroid hormones binding to steroid receptors, so they are important accessory factors that induce the initiation, development and recurrence of breast cancer, and predictive factors that estimate the prognosis of breast cancer. Conclusion Inhibition of the expression and signaling pathway of steroid receptor coactivators may be effective for breast cancer prevention and treatment.

There are many kinds of the scaffolds of tissue engineered cartilage, including collagen, polylactic acid hybrid material, chitosan and decellular extracellular matrix. They all have biocompatibility, safety and stable physicochemical property, which indicate good application value in the field of tissue engineering. Moreover, the composite scaffolds are superior to simple scaffold. It is potential scaffold materials that developing into composite materials, biomimetic materials, modified natural materials, intelligent material and nano-technological materials.

Objective To observe the effect of two different methods of fixed temporary pacemaker electrode. Methods Fromn April 2015 to December 80 temporary pacemaker patients were randomly divided into control group (n = 40) and the experimental group (n = 40), the control group using gauze cloth tape cross method combined with the traditional fixed, the experimental group was treated with 3M type of comfortable and stable transparent dressing+3M pressure fixing belt fixed, to compare two groups in the skin lesions, electrode dislocation, inflammatory reaction, the switching frequency difference. Results There was no significant difference between the two groups in general data (P>0.05). There was no significant difference between the two groups in the cost of dressing and materials、electrode dislocation (P>0.05), experimental group of the switching frequency is lower than the control group (Z=-2.064, P<0.05), the differences were statistically significant. Conclusions 3M comfortable type solid transparent sticking and 3M pressurized fixed band method in the absence of increased medical costs while ensuring medical safety, save the manpower cost.

In the universities of our country,there still exists such problems about the construction of innovative environment as the lack of the conception of innovation education,the backward institutional and teaching surroundings,the thin science atmosphere and so on,which restrict the growth of the innovative person.To create the innovative environment,our universities should construct the sound management institution of students and teachers,supply reasonable appraising mechanism and the teaching condition and at the same time create good science atmosphere.

Objective To study the characteristics of working memory impairment in patients with lacunar cerebral infarctions(LCI).Methods 42 patients proved by clinics were chosen,and divided into two groups:multiple and single LCI groups,versus left,right and double side infarction groups.Their working memory status were evaluated and compared with Digit Ordering Test,Corsi block task,House Visual Span Test and Stroop Digit Counting Test.All scores were analyzed statistically.Results(1)All scores of the four types of Tests in multiple LCI group were significantly lower than those in single group(P0.05).Conclusions Multiple LCI is closely related to working memory impairment.Left brain infarction may induce verbal working memory impairment,and right infarction may induce spatial working memory impairment,but object working memory impairment may related to double side of brain infarction.It suggested that in the physiological structure,different components of working memory regions had dissymmetrical effect in two sides of brain.

Hepatitis C virus ( HCV) is a leading cause of chronic hepatitis, cirrhosis, and hepatocellular carcino-ma in humans.Due to the lack of suitable experimental animal models for HCV infection, the development of more effective treatment of HCV infection and vaccines has been delayed.Chimpanzee is the best experimental animal model for the re-search of hepatitis C virus ( HCV) infection.However, because of its limited in resource, expensive in breeding, and difference in clinical symptoms, thus developing new experimental animal models for HCV-related basic and applied re-search is imminent.In recent years, as a surrogate animal model, the development of rodent model and other models has been achieved a lot of progress.Using such as genetically modified experimental techniques, those surrogate animals were infected with HCV in vivo and were successfully applied to research in several areas.In this review, we will focus on the a-chieved progress in naturally infected animal model and transgenic surrogate experimental models, and their advantage and limitation in usage in study on the pathogenetic mechanism of infection, drug evaluation and development of vaccines, and will also discuss the future direction of development of experimental animal models for research of infection with HCV.

Objective To study TLC and HPLC fingerprint of Paeoniae Radix Alba;To provide reliable methods for its quality control and evaluation. Methods TLC was performed to detect paeoniflorin with CHCl3-EtOAc-methanol-formic acid (40∶5∶10∶0.2) as the developing solvent system. The HPLC chromatographic separation was performed on Kromasil C18 column (250 mm× 4.6 mm, 5μm, 12 nm). The mobile phase was a mixture of acetonitrile-0.05%phosphoric acid in gradient elution with flow rate of 1 mL/min. The detection wavelength was set at 254 nm, and the column temperature was 35 ℃. Results The TLC spots were clear. Fifteen common peaks including paeoniflorin (the ninth peak) in the HPLC profile were found in ten batches of samples of Paeoniae Radix Alba in different growing areas, the fingerprints of samples from Anhui Province and Zhejiang Province showed little difference. Conclusion Fingerprint of Paeoniae Radix Alba showed unique features, and can be used to control its quality.