Objective: To study the effect of ischemic preconditioning on heat-shock protein 70 (HSP70) expression and the learning,memory functions after forebrain ischemia-reperfusion injury in gerbils. Methods: Gerbils (n=100) were evenly randomized into four groups: Sham group, ischemia-reperfusion (I/R) group, ischemia preconditioning (IP) group, and Cycloheximide + IP group (Cycloheximide was administered 30 min before IP). Transient forebrain ischemia-reperfusion model was established by bilateral common carotid artery occlusion according to the method described previously, and ischemia preconditioning model was established as described by Kitagawa. Changes of neuron morphous in hippocampus CA1 region were observed by H-E staining 1, 2, and 3 days after reperfusion. The expression of HSP70 was examined by immunohistochemistry and Western blotting assay. Neuron apoptosis was detected by TUNEL method. The learning/memory functions of gerbils were examined using 4-PTT dry path maze 3, 4, 5, 6, and 7 days after reperfusion. Results: Compared with Sham group, I/R group had significantly decreased survival neurons(P<0. 05), increased neuron apoptosis(P<0. 05), increased expression of HSP70 (P<0. 05), and decreased learning/memory functions(P<0. 05). Compared with I/R group, IP group had significantly increased survival neurons(P<0. 05), decreased neuron apoptosis (P<0. 05), and increased expression of HSP70 (P<0. 05), and improved learning/memory functions (P < 0. 05). However, cycloheximide almost totally abolished the effect of ischemia preconditioning, with the neuron morphology, density, apoptosis, HSP70 expression, and learning/memory functions similar to those of I/R group. Conclusion: Ischemic preconditioning can protect against cerebral ischemia injury and improve the learning/ memory functions after forebrain ischemia-reperfusion damage, which is possibly through promoting HSP70 expression and starting endogenous neuroprotective mechanism, subsequently reinforcing the protective effect against ischemia.

Objective To analyze the training and evaluation standards on urine analyzers in the grass-roots medical unit.Methods The applicability,requirements,subject setup and items of the standards as well as the requirements of evaluation scoring chart were expounded in detail,and the related elementary knowledge was analyzed including the structure,working principle,installation and adjustment,operation,application,maintenance and etc of the analyzer.Combined personnel with the equipment was suggested to ensure the accuracy and high efficiency of the test result.Results The interpretation of the standards contributed to enhancing the quality of medical equipment training and the ability of practical support,and facilitated the examiner to perform annual evaluation with the scoring chart.Conclusion It is necessary to grasp accurately the connotation of the standards,to improve the quality of medical equipment training and to enhance combat support capability for the grass-roots medical unit and examiner.

Objective Ouabain is a cardiotonic steroid that can induce the apoptosis of many tumorous cells .This study was to investigate the anti-tumor mechanisms of ouabain by observing its effects on the apoptosis of T lymphoblastic leukemia Jurkat cells and the expressions of hTERT and c-myc mRNA and protein . Methods Jurkat cells were treated with ouabain at the concentrations of 50 and 100 nmol/L for 24 and 48 hours, and those treated with 1 ×PBS served as the control .Then the apoptosis rate of the cells was detected by flow cytometry after Annexin V/PI staining, the expressions of hTERT and c-myc mRNA determined by RT-PCR, and those of hTERT and c-myc protein by Western blot . Results The apoptosis rates of the Jurkat cells in the 50 and 100 nmol/L oua-bain groups were (5.67 ±3.71)%and (9.63 ±4.83)%respectively at 24 hours, and (19.67 ±4.55)%and (37.60 ±11.89)%at 48 hours, significantly higher than (4.23 ±1.01)%in the PBS control group at 48 hours (P<0.05).Compared with the control, the expressions of hTERT and c-myc mRNA were decreased by 200%and those of hTERT and c-myc protein by 224%and 400%, re-spectively, at 48 hours (P<0.05).There was a positive correlation between the reduction of the mRNA levels and that of the protein levels of hTERT and c-myc (P<0.05). Conclusion Ouabain can down-regulate the mRNA and protein expressions of hTERT and c-myc, which may be one of the mechanisms of its induction of the apoptosis of Jurkat T lymphocyte leukemia cells .

Adult ; Carcinoma, Endometrioid ; pathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Hysterectomy ; Ovarian Neoplasms ; pathology ; surgery ; Sex Cord-Gonadal Stromal Tumors ; pathology ; surgery

Aged, 80 and over ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Diagnosis, Differential ; Fasciitis ; pathology ; Fibroblasts ; pathology ; Fibrosarcoma ; metabolism ; pathology ; surgery ; Forearm ; Histiocytoma, Malignant Fibrous ; pathology ; Humans ; Male ; Myxosarcoma ; metabolism ; pathology ; surgery ; Soft Tissue Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism ; alpha 1-Antichymotrypsin ; metabolism

Objective To compare the clinical effectiveness of incision-thread-drawing procedure and incision and drainage procedure in the treatment of perianal abscess.Methods Clinical data collected from 110 patients with perianal abscess were retrospectively analyzed.Forty-six cases were treated with incision-thread-drawing procedure(therapy group) and 64 with incision and drainage procedure(control group).Results Recurrence rate and incidence of anal fistula were 4%(2/46) and 4%(2/46) in therapy group,respectively,significantly lower than those in control group(19% and 23%,P

Objective To review the clinical characteristics of adult-onset Still's disease (AOSD) patients with special pulmonary complications.Methods Medical records of 506 AOSD inpatients,who were admitted in Peking Union Medical Hospital from October 1997 through March 2015,were retrospectively reviewed.The clinical features,biochemical parameters,radiology,pulmonary function tests,ultrasound,treatments and prognosis of AOSD patients with special pulmonary complications were analyzed.Results The incidence of special pulmonary complications in AOSD inpatients was 2.2％ (11/ 506),including 3 cases of interstitial lung disease and 8 cases of pulmonary artery hypertension.All 11 patients had common manifestations of AOSD,including fever (11/11),arthralgia/arthritis (11/11),rash (9/11),lymphadenopathy and/or splenomegaly (8/11),serositis (10/11),abnormal liver function (9/ 11),neutrophilia (11/11),and hyperferritinemia (11/11).The patients with interstitial lung disease had no or mild symptom,and were diagnosed by HRCT and pulmonary function test.The patients with pulmonary artery hypertension had various symptoms including dyspnea of exertion (8/8),cough (4/8),chest suppression (2/8),and chest pain (2/8).Four patients died from severe infection,including 3 cases of pulmonary artery hypertension and 1 case of interstitial lung disease.Conclusions Interstitial lung disease and pulmonary artery hypertension are life-threatening complications of AOSD patients.Earlier recognition and prompt treatment should be made to improve patient outcomes.

Objective To analyze tissue-specific expression and polymorphic regulation of the UDP - glucuronosyltransferase (UGT) 1A gene in human tissue. Methods Forty colorectal cancer tissue. 20 normal colorectal tissue and 10 normal liver tissue were studied. UGT 1A transcriptions were investigated by exon-1 specific RT-PCR. UGT 1A proteins were studied using Western blotting analysis. Meanwhile catalytic activity of microsomes was evaluated using N-hydroxy-PhiP. Results (1) UGT 1A mRNA expressions were found to be significantly down-regulated in colorectal cancer tissue as compared with the surrounding normal tissues(P

Objective To review the efficacy of different rehabilitation training on walking locomotion for chronic incomplete spinal cord injury (SCI) by Meta-analysis. Methods PubMed, CNKI, Wanfang Database, and Google academic search were applied to search for clinical trials on chronic incomplete spinal cord injury to review the efficacy of gait training. Meta-analysis was to assess the clinical trials by Rev-Man 4.2. Results Gait training improved the walking speed for chronic incomplete spinal cord injury. The efficacy of partial body weight support treadmill training combined with functional electrical stimulation was confirmed. The efficacy of artificial aided training and robot-aided training remained uncertain. Conclusion Gait training was effective to improve walking ability for chronic incomplete spinal cord injury, but the evidence was insufficient.

The academic connotation of "pathogenic factors" is discussed in this article from three aspects of etiology,diagnosis and treatment.It is considered that endogenous or exogenous pathogenic factors oppose to and destruct healthy energy.TCM pathogenic factors,obtained from "examining syndromes for causes of diseases",are diverged from physical,chemical and biological those in modern medicine.What is meant by "therapy of expelling pathogenic factors" is not a single method of dispelling toxin and killing germs,but the resort of regulating the integrated abilities of the human body fighting against pathogenic factors.