砄bjective:To investigate the expression of plasminogen activator inhibitor 1(PAI 1) in oral and maxillofacial tumors and the relationship between PAI 1 and pathological parameters.Methods:Chromogenic substrate assay was used to determine PAI 1 level in tumor tissues and ELISA was used to detect the concentration of PAI 1 in tissue extracts in 30 cases of malignant tumors and 10 of benign tumors in oral and maxillofacial area.Results:Higher level and concentration of PAI 1 were found in malignant tumors than in tumor adjacent tissues or benign tumors ( P

BACKGROUND: Due to the trouble of body image and self-esteem, more and more women hope to reduce their body mass.OBJECTIVE: To assay the characters and correlation between body image and self-esteem in women who reduce weight positively.DESIGN: Transect investigation.SETTING: Department of Dermatology of Xiangya Hospital and Xiangya Second Hospital of Central South University. PARTICIPANTS: Totally 100 patients for weight loss was collected in Department of Acupuncture and Moxibustion of Xiangya Hospital Affiliated to Central South University from November 2002 to September 2003 and they were included in experimental group. Severe physical disorders or other chronic physical disorders were excluded, such as cardiac vascular disease and diabetes and various metal disturbances were excluded too. In addition,the patients did not taken psychoactive drugs recently. Those were in over-body-mass group if body mass index(BMI) ≥ 24 and those were in normal body mass group if BMI＜24. In the control, there were 100 healthy women participating in the study in volunteer at the same time. The exclusive standards for them were same as the experimental group and they did not taken psychoactive drugs recently and had done nothing for weight loss in 5 years.METHODS: After instructed, the receptors filled up the following questionnaire: a self-rating scale of body image(SRSBI) and the self-esteem scale (SES). SRSBI is the subjective assessment on the beauty and strength of the body individually. SES is the assessment on holistic perception of self-value and self-acceptance.MAIN OUTCOME MEASURES: Results of SRSBI and SES in weight loss women.RESULTS: According to intention, general results of SRSBI: The score in experimental group(15.14±9.99) was higher than that in the control (7.89±6.18) (t= 6.15, P＜0.001) . The score was(15.65±10.36) in normal body mass group and was(13.81 ±10.03) in over-body-mass group. By the comparison between both, no difference presented(t=0.91, P ＞0.05) . Results of SES: the score in experimental group (27.01±4.19)was lower than that in the control(28.23±3.65) (t= 2.16, P＜0.05).The score was(27.31±4.50) in normal body mass group and was (26.86±3.82) in over-body-mass group. By the comparison between both,no difference presented (t=0.54, P＞0.05) . It was indicated in linear correlation analysis on SRSBI and SES in experimental group that the correlation coefficient between SRSBI and SES was-0. 088(P＞0.05).CONCLUSION: The people who seek for weight loss actively present inferior subjective perception of body image and low level of self-esteem, and there is no correlation between both of them and neither of them is relevant t.o obesity.

ObjectiveTo find out the inhibitory effects of CD4 - CD8 - DNT cells on growth of which depresses the pancreatic cancer in vitro and in vivo.Methods The inhibitory effects of DNT cells on the growth of Panc- 1 were studied in vitro by MTT method.Eighteen BALB/c mice were divided into 3 groups randomly.Human pancreatic cancer xenografts were established in 2 groups randomly.The last group was injected the cell suspension which comprises DNT and Panc- 1 cells ( Panc- 1∶ DNT =1∶ 5 ).When the diameter of tumor was about 5 mm,the first 2 group mice were further divided into 2 groups randomly.One was control,treated with distilled water.The other was treated with celebrex (4 mg/d).The size of the tumors was calculated every 2 weeks and tumor growth curve was depicted.At the end of the treatments,the mice were sacrific and the tumors were harvested.The tumor inhibition rate was calculated.Results( 1 ) MTT study showed that DNT cells produced a dose- dependent inhibition of Panc- 1 proliferation in vitro.(2) The growth of transplanted pancreatic cancer was down-regulated by treatment of DNT cells.ConclusionDNT cells can inhibit the growth of pancreatic cancer in vitro and in vivo.

Objective To investigate the relationship of PI3K/Akt signaling pathway with the activation of hepatic stellate cells (HSC) and its role in radiation-induced hepatic fibrosis.Methods HSC was treated with 6 MV X-ray irradiation (IR) together with the inhibitor of PI3K/Akt signaling pathway.The cells were divided into inhibitor group,10 Gy IR group,10 Gy + inhibitor group,20 Gy IR group,an 20 Gy + inhibitor group and blank control group.Then cell apoptosis rate was detected,the expression of transforming growth factor β1 (TGF-β1) in cell supernatant and the mRNA expressions of α-smooth muscle actin (α-SMA) and phosphorylation protein kinase B (p-Akt) were measured.Results Compared with the control group,the apoptosis rate of 10 and 20 Gy IR group increased with irradiation dose (t =8.43,11.63,P ＜0.05) but they were reduced by the inhibitor of PI3K/Akt (t =8.09,4.88,P ＜0.05).The expressions of TGF-β1,α-SMA,and p-Akt also increased with irradiation dose (t =6.91,7.80,9.28,P＜0.05) but they were declined by this inhibitor for both 10 Gy IR (t =6.17,15.11,10.34,P＜0.05) and 20 Gy IR (t =10.04,6.85,23.84,P＜0.05).Conclusions X-ray irradiation could activate HSC through PI3K/Akt signaling pathway,which may further result in hepatic fibrosis.

ObjectiveA comparative proteomic method was used to analyse serum proteins between pancreatic cancer patients and control group,and to find a new protential specific marker.MethodsComparative analysis on the pancreatic peripheral blood protein profiling from 40 pancreatic cancer patients,10 chronic pancreatitis patients,10 benign tumor patients and 40 cancer-free controls was carried out by 2D differential gel electrophoresis,and differentially expressed proteins were identified by matrix-assisted laser desorption/ionization time of flight mass spectrometry.ResultsTwo differentially expressed proteins:transthyretin and apolipoprotein E were identified.Those proteins were highly expressed in pancreatic carcinoma group compared with normal control group,chronic pancreatitis group and benign tumor group.Conclusion2D differential gel electrophoresis and matrix-assisted laser desorption/ionization time of flight mass spectrometry technology in screening specific serum biomarkers of pancreatic cancer has a well repeatability and stability.The identified protein transthyretin in this study may be as specific serum biomarkers of pancreatic carcinoma.

Pancreatic cancer is a commonly malignant gastrointestinal tumor with an significantly increasing incidence.Those patients without nonspecific symptoms at early stage had mostly lost the opportunity of surgical therapy when pancreatic cancer was detected at advanced stage,and its prognosis is poor.Therefore,it is rather important to improve the early diagnosis of pancreatic cancer.In recent years,proteomics is developing rapidly.Proteomics technologies have been widely used in clinical research.Using proteomics technology screening pancreatic cancer tumor markers becomes the research focus,thus we try to find a kind of or a group of pancreatic tumor markers,so as to improve the diagnosis of pancreatic cancer.

OBJECTIVE: To observe the effect of the three stages of 5-aminolevulinic acid-photodynamic therapy (ALA-PDT) on condyloma acuminatum of external urethral meatus. METHODS: A total of 56 patients with condyloma acuminatum of external urethral meatus presenting at the Department of Dermatology of Xiangya Hospital from Janunary 2009 to September 2009 were randomly treated by the three stages of ALA-PDT. The topical ALA followed by PDT was carried out once a week for 3 weeks. Rates of cure, ineffectiveness, adverse effects and complications were observed. The follow-up time was 6 months and the recurrence rates were documented. RESULTS: After treatment of three stages of ALA-PDT, complete remission was achieved in 48 out of the 56 patients (85.7%). The recurrence rate was 14.3% (8 cases), and 2 patients had no responses (3.6%). Only 1 patient had serious pain during the treatment, and the rate of adverse effect was 1.8%. No complications were observed. CONCLUSION The three stages of ALA-PDT are safe, effective and tolerant treatment for condyloma acuminatum of external urethral meatus.
Adult ; Aminolevulinic Acid ; administration & dosage ; Condylomata Acuminata ; drug therapy ; Humans ; Male ; Photochemotherapy ; Photosensitizing Agents ; administration & dosage ; Urethral Diseases ; drug therapy

ABSTRACT:Objective To investigate the value of nursing intervention in the elderly pa-tients with upper gastrointestinal bleeding.Methods A total of 140 patients with upper gastroin-testinal bleeding were randomly divided into control group (conventional nursing measures)and ob-servation group (nursing interventions),70 cases in each group.Clinical efficacy was compared. Results After nursing,the total effective rate of the observation group was 97.14%,which was significantly higher than the control group(P <0.05).Homeostasis time,rebleeding and nursing satisfaction in the observation group were significantly better than those in the control group(P <0.05).Conclusion The nursing interventions can significantly shorten the bleeding time,reduce rebleeding rate and improve nursing satisfaction in elderly patients with gastrointestinal bleeding.

ABSTRACT:Objective To investigate the value of nursing intervention in the elderly pa-tients with upper gastrointestinal bleeding.Methods A total of 140 patients with upper gastroin-testinal bleeding were randomly divided into control group (conventional nursing measures)and ob-servation group (nursing interventions),70 cases in each group.Clinical efficacy was compared. Results After nursing,the total effective rate of the observation group was 97.14%,which was significantly higher than the control group(P <0.05).Homeostasis time,rebleeding and nursing satisfaction in the observation group were significantly better than those in the control group(P <0.05).Conclusion The nursing interventions can significantly shorten the bleeding time,reduce rebleeding rate and improve nursing satisfaction in elderly patients with gastrointestinal bleeding.

Abstract Social withdrawal is a kind of behavioral inhibition in social situations, which may increase the risk for maladjustment, internalizing and externalizing problems, interfering with psychological development and healthy growth. With the deepening understanding in sociology of development, child social withdrawal has gradually received extensive attention from scholars across the world. Understanding the phenomenon of child social withdrawal is important for in depth follow up research. Based on the literature review, the paper aims to summarize the types, mechanisms and influencing factors of social withdrawal in children, in order to provide scientific basis for formulating prevention strategies and early intervention programs in the future.