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Objective To summarize the technology and progress of the preparation of human renal hyaline specimen.Methods Male adult kidney specimens not exceeding 24 hours after death were prepared by filling,fixation,bleaching,dehydration and transparent proce-dure.Results The human body transparent kidney specimen can clearly show the renal segment,renal arterial vein,number of branches and the course,and it can insure that there was no damage and changes in the kidney column,renal vertebra,renal papilla and other structures. Conclusion The improved method of production technology of kidney transparent specimens can be used to clearly demonstrate the course of renal artery venous blood vessels and boundary between renal segments on the basis of preserving the overall shape of the kidney.
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Objective To study the expression profile and subcellular distribution of aquaporin (AQP) 3,8 and 9 in SD rat alcoholic liver disease (ALD) models.Methods Eighteen male SPF SD rats were randomized into three groups,which received different treatments for 6 weeks:normal rodent chow-fed group (NC) rats were allowed to consume normal food and water ad libitum;ethanolfed group (EtOH) rats and pair-fed group (PF) rats were fed an ethanol-containing Lieber-DeCarli liquid diet and a pair-fed isocaloric high-fat non-ethanol-containing Lieber-DeCarli liquid diet,respectively.We used immunohistochemistry assay,immunoblot,quantitative real-time PCR,and immunoelectron microscopy to determine the expression and subcellular distribution of AQP3,AQP8 and AQP9.Results Our result showed that AQP8 and AQP9 were distributed in bile canaliculus membrane,inner mitochondrial membrane and other subcellular structures in rat hepatocytes.After chronic alcohol intake,AQP8 and AQP9 membranous expression in liver were reduced;in hepatocytes,labeling density of AQP8 in bile canaliculus membrane and inner mitochondrial membrane were downregulated while labeling density of AQP9 in bile canaliculus membrane was increased.The membranous/cytoplasmic expression ratio of AQP3 and AQP8 in ileum were both upregulated;the membranous/cytoplasmic expression ratio of AQP8 and AQP9 in colon were downregulated.In conclusion,our study showed that chronic alcohol intake altered the expression and subcellular distribution of AQP3,AQP8 and AQP9.Conclusions Our study suggested that disordered subcellular distribution of AQP3,8 and 9 participate in the development of ALD.
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<p><b>OBJECTIVE</b>To study the expression of neonatal Fc receptor in podocytes in human nephritis and immune-induced rat nephritis models: anti-Thy1.1 nephritis and Heymann nephritis.</p><p><b>METHODS</b>Thirty-nine cases of renal biopsies were enrolled from September 2009 to February 2010, including 8 cases of minimal change disease, 4 cases of focal segmental glomerulosclerosis, 9 cases of membranous nephropathy, 12 cases of IgA nephropathy and 6 cases of lupus nephritis. Five normal kidney tissue samples adjacent to renal clear-cell carcinoma were served as normal controls. Laser capture microdissection and real-time RT-PCR were used to assess the expression level of FcRn mRNA in glomeruli of various glomerulonephritides, and immunohistochemistry (IHC) of FcRn by SuperVision method was performed. In addition, rat models of mesangial proliferative nephritis (anti-Thy1.1 nephritis) and passive membranous nephropathy (Heymann nephritis) were established and FcRn was examined in renal tissues by IHC.</p><p><b>RESULTS</b>The FcRn mRNA level in lupus nephritis was statistically higher than that of normal controls (P < 0.05). FcRn protein expression by IHC was seen in lupus nephritis (6/6), membranous nephropathy (6/9) and IgA nephropathy (7/12), significantly higher than that of normal controls (0/5), P < 0.05. Minimal change disease and focal segmental glomerular sclerosis showed minimal or none expression of FcRn (1/8, 0/4 respectively) and not statistically difference from that of normal controls. Furthermore, FcRn expression in podocytes was detected in rat anti-Thy1.1 (3/5) and Heymann nephritis models (2/7) but was not detected in normal controls.</p><p><b>CONCLUSIONS</b>Expression of FcRn in podocytes was up-regulated in immune-induced human nephritis and rat nephritis models of anti-Thy1.1 nephritis and Heymann nephritis. FcRn may play a role in the development of immune-induced glomerulonephritis.</p>
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Animals , Humans , Male , Rats , Glomerulonephritis, IGA , Metabolism , Pathology , Glomerulonephritis, Membranous , Metabolism , Pathology , Glomerulosclerosis, Focal Segmental , Metabolism , Pathology , Histocompatibility Antigens Class I , Genetics , Metabolism , Laser Capture Microdissection , Lupus Nephritis , Metabolism , Pathology , Nephritis , Genetics , Allergy and Immunology , Metabolism , Pathology , Nephrosis, Lipoid , Metabolism , Pathology , Podocytes , Metabolism , RNA, Messenger , Metabolism , Rats, Sprague-Dawley , Real-Time Polymerase Chain Reaction , Receptors, Fc , Genetics , Metabolism , Thy-1 Antigens , Allergy and Immunology , Metabolism , Up-RegulationABSTRACT
In connection with the efficiency problem of narrow-band PACS medical images transmission and display and following the DICOM 3.0 standard and JPEG2000 code stream properties of progressing transmission and free access, this paper presents a new parallel processing method of the images transmission and display. This method raises the performance of images' transmission, storage and display, and has been evaluated in the clinical medical diagnosis information system.
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Diagnostic Imaging , Image Processing, Computer-Assisted , Methods , Radiology Information Systems , SoftwareABSTRACT
This paper introduces the development of the Free-MPR module, based on VC++6.0 environment and VTK5.0, and on Windows XP platform. The Free-MPR module can adjust freely the display plane according to the change of the visual angle, and implement the free multi-planar reformation.
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Echo-Planar Imaging , Imaging, Three-Dimensional , Software , Tomography, X-Ray Computed , MethodsABSTRACT
Referring to XDS-I and RIM of ebXML, we have built a registry system for electronic medical records sharing which is introduced, in this paper.
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Humans , Hospital Information Systems , Information Storage and Retrieval , Methods , Medical Record Linkage , Methods , Medical Records Systems, Computerized , Multimedia , Radiology Information Systems , Software , User-Computer InterfaceABSTRACT
<p><b>OBJECTIVES</b>To investigate the role of glycyrrhizin on TGFbeta1 stimulated signaling transduction in rat hepatic stellate cells (HSCs).</p><p><b>METHODS</b>The mice HSCs were isolated and cultured with or without glycyrrhizin (1 micromol/L-1000 micromol/L) in vitro after TGFbeta1 stimulation. The mRNA level of Smad2, 3, 7 were measured with RT-PCR; protein expression level of Smad2, 3, 7 and collagen I, III were analyzed with Western blot.</p><p><b>RESULTS</b>TGFbeta1 increased the mRNA level and protein expression of Smad2, 3, 7 in HSC; it also increased protein expression of collagen I and III. 1 micromol/L-1000 micromol/L glycyrrhizin decreased the mRNA level and protein expression of Smad2, 3, 7; it also inhibited protein expression of collagen I and III gradually.</p><p><b>CONCLUSION</b>Interventing the TGFbeta signaling pathway and decreasing the synthesis of collagen, might be involved in the anti-fibrosis mechanism of glycyrrhizin.</p>
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Animals , Male , Rats , Glycyrrhizic Acid , Pharmacology , Hepatocytes , Metabolism , Signal Transduction , Smad Proteins , Metabolism , Transforming Growth Factor beta , PharmacologyABSTRACT
Objective To investigate the effects of glycyrrhizin on gene expression of transforming growth factor(TGF)-?signaling pathway of hepatic stellate cell(HSC)in mice by gene microarray tech- nique.Methods The HSCs were isolated from mice and cultured in vitro.Then the mice were divided into control group,TGF-?_1 group(5 ng/ml) or TGF-?_1(5 ng/ml)combined with glycyrrhizin(100?mol/L) group.The cells were collected after 10 hours to extract RNA.A cDNA microarray(GEArray~(TM) Q) targeting TGF-?/BMP signal transduction was used to screen the genes which showed significant changes in expression of TGF-?pathway of HSC by glycyrrhizin.Results The microarray analysis showed that 16 genes(16.7%),such as Smad2,Smad3,Smad7,CoL3A1,CoL1A2,and PAI-1,were upregulated by TGF-?_1 and then down-regulated by glycyrrhizin.Five genes(5.2%)(including BMP7,IGFbp3 and etc.)downregulated by TGF-?_1,were then up-regulated by glycyrrhizin.Finally,2 genes upregulated by TGF-?_1 were then up-regulated predominantly by glycyrrhizin in HSC(T?R2,betaglycan).Changes in some genes,such as Smad2 Smad3,Smad7,were further confirmed to be coincided with cDNA microarray by semi-quantitative RT-PCR.Conclusions The anti-fibrosis mechanisms of glycyrrhizin may be through to interference of TGF-?signaling pathway,decrease the synthesis and increase the degradation of collagen.