Purpose To investigate the expression of protein kinase D1 (PKD1) in endometrial carcinoma and normal endometrium,and to investigate its relationship with the clinicopathological features of endometrial carcinoma.Methods Immunohistochemical SP and qRT-PCR was used to detect the mRNA and protein expression of PKD1 in 92 cases of endometrial cancer and 48 cases of normal endometrium,and to analyze the relationship of expression of PKD1 with the tumor differentiation and clinical stage of endometrial carcinoma tissue.Western blot method was used to detect the expression level of PKD1 protein in normal endometrial cell line and endometrial carcinorna cell lines with different degree of differentiation.Results mRNA and protein expression of PKD1 in endometrial carcinoma tissues was significantly higher than those in normal endometrial tissues (P ＜ 0.01),which showing a correlation to the degree of tissue differentiation and clinical pathologic staging.While,the expression level of PKD1 protein in endometrial cancer cell lines was also much higher than that in normal endometrial cells (P ＜ 0.01),and the lower differentiation,the higher level of PKD1 protein expression.Conclusion PKD1 is highly expressed in endometrial cancer patients.The level of PKD1 expression may be an important reference for predicting the malignant degree of endometrial cancer.

The lumbar intervertebral disc is a disc-shaped fibrocartilaginous structure located between the vertebral bodies and acts as an important anatomical structure in the spine for stability. The spinal stability system consists of three subsystems: passive subsystem, active subsystem, and neural control subsystem. Lumbar intervertebral disc degeneration (IVDD), the leading cause of low back pain, induces pathological changes in other tissues of the three subsystems and interacts to degrade spinal stability. IVDD is commonly accompanied by degeneration of facet joint and ligament, Modic change, decreased vertebral blood flow, increased paraspinal muscle fat infiltration, reduced axial tension injury of the nerve, et al. Magnetic resonance imaging (MRI) is the preferred imaging modality for assessing spinal stability. Conventional MRI could completely demonstrate the morphological changes of the three subsystems in IVDD patients, and functional MRI could quantitatively evaluate the degree of pathophysiological change. We summarized the morphological and functional changes of MRI in lumbar intervertebral disc, facet joint, ligament, vertebral body, paraspinal muscle, and nerve of patients with IVDD, and then analysed the changes in spinal stability caused by IVDD, aiming to provide more imaging information for improving diagnosis accuracy and developing appropriate management of patients with low back pain.

BackgroundRetinal pigment epithelial (RPE)cell senescence damage the metabolism of photoreceptor,leading to retinal dysfunction and loss of vision.To understand RPE cell senescence mechanism will contribute to the study of age-related macular degeneration ( AMD).ObjectiveThe present study was to prepare the ageing RPE cell model with passage and explore its potential mechanisms.MethodsThis study was approved by the Ethic Committee of Qingdao University Medical College,and the informed consent was obtained from each gravida.Six human eyeballs were obtained from artificial labor fetusl with the gestational age 16-28 weeks.RPE cells were isolated,cultured and passaged in vitro to establish the cell replicative aging model.The third to twelfth cells were collected to be used to this experiment.Human keratin was used to identify the cells by immunochemistry,and MTT method was utilized to assess the proliferation and viability of different generations of cells as the A490 value.The cellular cycles and transmembrane potential (△ψm)of mitochondrion (△ψm) with passage were detected and compared using Flow Cytometry. Results Cultured and passaged cells showed the hexagon in shape with the melanin in 1-2 generations of cells and presented with the brown staining in cytoplasm for human keratin.The melanin was absent in the third generation cells.Vibrant growth statues were seen from the 3-6 generations cells and thereafter the proliferation ability reduced.The cells of G0/G1 phase were gradually elevated with the passage from 3 - 12 generations with a percentage of 68.40％ in the third generation of cells to 87.33％ in the twelfth generation of cells,showing a significant difference among various generations ( F =180.43,P =0.00),and that of the sixth,ninth and twelfth generation of cells was significant higher than the third,sixth and ninth generation respectively (t =4.002,P＜0.05 ; t=12.885,P＜0.01 ;t=16.387,P＜0.01 ).MTT assay showed that of RPE cells were significantly declined with the passage ( F =38.77,P =0.00),and the A490 value of the ninth,twelfth generations of cells was considerably lower in comparison with sixth and ninth generation respectively ( t =5.991,11.983,P＜0.01 ).From 3 through 12 generations of cells,the staining intensity of rhodamine 123 was gradually decreased ( F =121.68,P =0.00 ),and the staining intensity in the sixth,ninth and twelfth generation of cells was significant lower than that the third,sixth and ninth generation respectively(t=6.918,7.620,11.207,P＜0.01 ).Conclusions A replicative aging model can be successfully created by the passage in vitro using human fetal RPE cells.The reduce of transmembrane potential and damage of mitochondria might be one of mechanisms of senescence of RPE cells.

OBJECTIVE:To discuss the general pattern and features of adverse drug reactions(ADRs) of defibrase.MET-HODS:The cases of ADRs of defibrase reported in the national medical journals during 1999 and 2003 were collected and analyzed.RESULTS:ADRs of defibrase mainly included bleeding,urticaria,high fever,positive cutantest,liver function injury,ecchymoma,purpura haemorrhagica,incision hemorrhea,and arterial embolism.CONCLUSION:Great importance should be attached to ADRs of defribrase in clinic in order to ensure the safety of drug use.

Objective: To study the method of setting up,practicability and the cardiovascular physiological mechanism of slippery pulse model caused by alcohol.Methods: ①Scanned the heart and radial artery(cunkou) by the Magnetom Avanto 1.5T and record the pressure wave of radial artery by NX-6 Pulse Diagnosis Equipment after the subjects had gotten 100ml of distillate spirit of 61 degree and defined as the slippery pulse.②Record the pressure wave of carotid artery of rabbits defined as the slippery pulse after intragastric administration of distillate spirit of 40 degree 8ml per kilogram by NX-3 Pulse Diagnosis Equipment.Results: ①Slippery pulse model of human subjects: the stroke volume(SV),cardiac output(CO),cardiac index(CI),ejection fraction(EF) and the peak velocity of the blood flow increased;the end-diastole volume(EDV) and end-systole(ESV) decreased;the periph blood vessel distended and the amplitude of the offset of the axis stepped up;the characteristics of the pulse wave of cunkou were consistent with the characteristics of typical slippery pulse wave.②The characteristics of the pulse wave of slippery pulse model of rabbits were coincident with that of human subjects.Conclusion: The method of setting up slippery pulse model with alcohol is consistent with the mechanism of slippery pulse in the theory of traditional Chinese medicine and is practicable.

Acupuncture Points ; Adolescent ; Adult ; Electroacupuncture ; Female ; Humans ; Male ; Middle Aged ; Spinal Cord Injuries ; complications ; Urinary Bladder, Neurogenic ; etiology ; physiopathology ; therapy ; Urination ; Young Adult

Objective:To investigate the clinical value of magnetic resonance imaging (MRI) in differential diagnosis for benign and malignant lesions of solitary pulmonary nodules (SPN).Methods: 120 patients with SPN were enrolled in the retrospective analysis, and all of them underwent scan of MR including MRI, DCE-MR and diffusion weighted imaging (DWI) before their surgery. All of patients received detection of pathology or histopathological examination after their surgery, and the ADC values under different b values of dispersion sensitivity factor (300 s/mm2, 500 s/mm2 and 800 s/mm2) were compared.Results:Under the conditions both of 300 s/mm2 and 800 s/mm2, the differences of ADC value between benign nodule and malignant nodule were not statistically significant (t=1.195,P>0.05). And under the condition of 500 s/mm2, the ADC value of benign nodule was significantly higher than that of malignant nodule (t=4.313,P<0.05), and at this time, the sensitivity, specificity, rate of missed diagnosis and misdiagnosis rate of the differential diagnosis for benign and malignant lesions of SPN by using MR were 85.71％, 74％, 14.9％ and 26％, respectively.Conclusion: MR examination has higher sensitivity in differential diagnosis for benign and malignant lesions of SPN, and it has a certain clinical value when it is used as early detecting method.

Objective:To study the feasibility of repair of partial maxillary defect by distraction osteogenesis(DO) in zygoma.Methods:Segmental maxilla- zygoma defect was made in 3 dogs. A submerged DO distractor was anchoraged on the zygoma and maxilla across the defect,the zygoma was distracted with a rate of 1.0 mm/d for ten days,the process of bone formation was examined by X-ray.Results:All dogs were in health condition within the experimental period.New bone formation was observed 2~4 weeks after operation. Complete repair of the defects was observed 8 weeks after the completion of distraction.Conclusion:The partial maxillary defect may be repaired by DO in zygoma.

Objective:To investigate if transforming growth factor-?1 (TGF-?1) induces apoptosis in odontoblast cell line MDPC-23. Methods:MDPC-23 cells were treated with TGF-?1 at 0.5,2.5 or 10 ng/ml for 48 h,apoptosis of MDPC-23 cells was detected by annexin V and propidium iodide (PI) staining, cell death detection ELISA and DNA electrophoretic analysis. Results: Consistent results were obtained from three different methods.TGF-?1 at 0.5-10 ng/ml induced apoptosis of MDPC-23 cells in a dose-dependent manner. Conclusion:TGF-?1 may paly a role in apoptosis of odontoblasts.

ObjectiveTo master the epidemic situation of drinking-water borne endemic fluorosis in Xinzhou,evaluate the effects of water improvement project to reduce fluoride,and to provide a timely scientific basis for monitoring the disease and for establishment of preventive countermeasures.MethodsAccording to the water fluoride concentration and type of the disease,after stratification 25 endemic villages were selected as survey points.Five water samples were collected in water unimproved monitoring villages according to water well locations of east,west,south,north and center.In monitoring villages with improved water,3 tap water and 1 source water samples were collected,respectively.The fluorine content in water samples was determined according to the “Standard Testing Methods for Drinking Water”(GB/T 5750-2006).All children aged 8 to 12 of the survey villages were examined for dental fluorosis by Dean method.Clinical osteofluorosis of all the resident over the age of 16 was examined,8 villages of these counties were selected,10 men and.women were randomly selected in each village,respectively,and they were examined again by X-ray using “Diagnostic Criteria of Endemic Skeletal Fluorosis” (WS/T 192-2007).Children aged 8 to 12 in 13 villages of chosen villages were selected for urine collection,6 unne samples were collected in each age group and a total of 30 samples were collected,and urinary fluoride was determined by F-ion selective electrode method(WS/T 89-2006).ResultsA total of 56 water samples were tested in water-unimproved villages,the average water fluorine was 2.7 mg/L And 52 water samples were tested in waterimproved villages,the average water fluorine was 1.6 mg/L,water fluoride content ＞ 1.5 mg/L accounted for 46.15％ (6/13) in the water-improved village.Incidences of dental fluorosis of children in the water-unimproved villages and water-improved villages were 74.75％ (622/832) and 23.67％ (241/1018),respectively.The difference was statistically significant(x2 =140,P ＜ 0.01).The prevalence rate of skeletal fluorosis was 30.02％(2803/9335) in water-unimproved villages,and 9.44％ (1230/13 022) in water-improved villages.The difference was statistically significant(x2 =1557.75,P ＜ 0.01 ).The mean of urine fluorine in a total sample was 3.31 mg/L,the urinary fluoride concentration of children in water-improved villages was significantly different from that of water-unimproved villages(t =2.27,P ＜ 0.05).ConclusionsBy reducing fluorine and improving drinking water,disease in drinkingwater borne endemic fluorosis areas in Xinzhou has been controlled to a certain degree.However,the disease is still very serious in some endemic areas.Fluoride in drinking water re-increases in some water-improved villages,the disease is also in a rise.So,the work of monitoring and prevention should be strengthened.