Objective To summarize the types and imaging features of periosteal anomaly in osteosarcoma.Further to seek the feature of genesis and advancement of periosteal anomaly and its clinical significance.Methods One hundred and twenty-eight patients with osteosarcoma were enrolled in this study,which consisted of 76 males and 52 females aging from 5 to 66 years old with an average of 19 years.Both x-ray plain film and MR images were obtained in all patients.and DWI were done in 23 patients.CT scanning was conducted in 48 patients.which included post-contrast scanning done in 36.The pathological gross specimen,macrosection and point-to-point microsection were obtained in each of 14 cases to correlate the imaging findings of periosteal anomaly to the pathological outcome.Results The imaging and pathological finding:(1)Periosteodema,occurring in 96 patients.The sign was merely demonstratable on MR image and presented as loosened periosteal structure with no tumoral infiltration pathologically.(2)Periosteal lift and thickening,demonstratable on both CT and MR image,including 13 noted on CT and 42 on MR image.Pathologically,non-tumoral infiltration was noted in the thickened periosteum.(3)Periosteal destruction,occurring in 48 patients.Periosteal destruction was merely demonstratable on MR image and presented as localized or generalized tumoral infiltration of the periosteum.(4)Linear periosteal neo-bone formation,demonstrated in 42 cases on plain films,13 cases on CT and 22 on MR images,respectively.The linear periosteal neo-bone formation was pathologically regularly arranged periosteal neo-bone.(5)Laminar periosteal neo-bone fomarion,demonstrated in 21 cases on plain films,6 cases on CT and 21 on MR images,respectively.Pathologically,it appeared as multi-layer arrangement.(6)Radiated and spiculate periosteal neo-bone formation,demonstrated in 13 cases on plain films,7 cases on CT and 14 on MR images,respectively.On both plain film and CT,the closer to the center of the tumor,the longer and denser the spicule was.The interspiculate structure was tumoral tissue pathologically.(7)Periosteal neo-bone formation of mixed type,demonstrated in 7 cases on plain films,4 cases on CT and 8 on MR images,respectively.It was composed of 2 types or more of periosteal neo-bone.Conclusions (1)Multiform periosteal anomaly can be induced by osteosarcoma,and difierent periosteal anomaly possesses different imaging findings and different pathological basis.(2)The pathologically-based classification of periosteal anomaly generalizes the 3-modality imaging findings of various periosteal pathological alterations.(3)MR imaging enables to demonstrate periosteal anomaly more early,and periosteodema and periosteal destruction without neo-bone formation can only be demonstrated by MR imaging.MR imaging is more sensitive than CT in displaying periosteal thickening.

Objective To probe the imaging diagnostic characteristics of skull base-type pituitary adenoma (SBPA). Methods CT, conventional MRI, dynamic MRI, and pathological data of 16 patients with SBPA were analyzed. The manifestations of both CT and conventional MRI, the dynamic time-signal curve, time of peak enhancement, and average enhancement rate were compared between SBPA in the 16 patients and chordoma of the skull base (CSB) in another 9 patients. Results The CT appearances of both tumors were quite similar, offering no differential value. Both tumors were slightly hypointense on T 1 weighted images, but SBPA was mildly hyperintense and CSB was markedly hyperintense on T 2 weighted images. The T 2 weighted signal intensity between both tumors differed significantly (P5 min, (40?5) /min for CSB, respectively (P

Humans ; Diverticulum, Colon/surgery* ; Cholecystectomy/adverse effects* ; Tomography, X-Ray Computed

BACKGROUND:Articular chondrocytes with the ability of autocrine and paracrine can provide the growth factors and microenvironment for synovial mesenchymal stem cels differentiating into the chondrocyte. The
three-dimensional scaffold could provide space for cels adhesion, proliferation and differentiation.
OBJECTIVE: To study the ability of chondrogenesis by co-culturing synovial mesenchymal stem cels and chondrocytes under the three-dimensional condition.
METHODS:The synovial membrane and articular cartilage were harvested from rat knee joint. The synovial
mesenchymal stem cels and chondrocytes were obtained through the method of enzyme digestion. The passage 3 synovial mesenchymal stem cels and passage 2 chondrocytes were co-cultured in the chitosan/I colagen
composite scaffolds at the ratio of 1:2. Then, the cels/scaffold composite was harvested to be examined
morphologicaly, histologicaly and immunohistochemicaly after being cultured 21 days. The confocal laser was also employed to detect the cels distribution in the scaffold.
RESULTS AND CONCLUSION: After being cultured 72 hours, it could be observed from the cels/scaffold composite examined through the scanning electron microscope that the cels adhered on the surface of the
scaffold and extracelular matrix surrounding the cels was seen on the scaffold. After being cultured 21 days, it could be found through the confocal laser scanning that the cels were wel-distributed on the scaffold, and cels decreased gradualy. Type II colagen was positive in the extracelular matrix immunohistochamicaly. It
suggested from this study that the synovial mesenchymal stem cels could be co-cultured with chondrocytes in the chitosan/I colagen composite scaffolds and have the ability of chondrogenesis differentiation.

[ABSTRACT]AIM:ToinvestigatetheeffectofimmunosuppressantFK506onserumglucoseinratsandtoex-plore its mechanism .METHODS: Sprague-Dawley rats ( n =12 ) were randomly divided into drug group and normal group.The rats in drug group were intraperitoneally injected with FK 506 at dose of 1 mg· kg-1 · d-1 and the rats in nor-mal group received saline (1 mL· kg-1 · d-1 , ip) for 14 d.The fasting weight and fasting glucose were regularly meas-ured every 2 d.Visceral fat was isolated from the rats at the end of experiment .The mRNA expression of adiponectin , lep-tin, visfatin, resistin, retinol-binding protein 4 ( RBP4) and peroxisome proliferator-activated receptors γ( PPAR-γ) was determined by real-time fluorescence quantitative PCR .The protein expression of PPAR-γand adiponectin was measured by Western blotting .RESULTS:Compared with normal group , the concentration of fasting blood glucose in model group was significantly increased from the 10th day (P<0.05).At day 14, the fasting blood glucose of the model group increased from (5.10 ±0.62) mmol/L to (7.73 ±0.73) mmol/L.No significant change of blood glucose in normal group between the 10th day and the 14th day [from (4.66 ±0.32) mmol/L to (5.80 ±0.10) mmol/L] was observed.Compared with normal group , the mRNA expression of PPAR-γ, adiponectin and leptin in the adipose tissue of model group was signifi-cantly decreased ( P <0.01 ) , whereas the expression of visfatin , resistin and RBP4 was significantly increased ( P <0.05).Compared with normal group, the expression of PPAR-γand adiponectin in model group was decreased (P <0.01).CONCLUSION:FK506 may decrease the expression of PPAR-γto change the expression of adipocytokines and induce hyperglycemia in rats .

This study was designed to use iTRAQ technology coupled with 2D LC-MS/MS to study the comparative proteomics of different processing technology for pilose antler. 1015 proteins were identified with 2D LC combined with MOLDI TOF/TOF mass spectrometry. Comparative analysis with Protein Pilot (Version 4.5) revealed that 87 proteins were changed (P ≤ 0.05, the ratio of > 1.50 or < 0.60 as the threshold selection of difference proteins), of which 24 were up regulated and 33 were down regulated in the traditional frying process (TFP) compared with the fresh pilose antler (P ≤ 0.05). 7 significant different proteins (P ≤ 0.001), most of these significantly changed proteins were found to be involved in calcium ion binding and ATP binding associated with human healthy. Freeze drying with protective agent (FDP) (Trehalose) can improve the content of significantly different proteins (P ≤ 0.001) including Collagen alpha-1 (XII) chain (COL12A1) and Collagen alpha-1 (II) chain (COL2A1). The significant function involves in platelets activating, maintenance of spermatogonium, and disorder expression in tumor cells. The functional annotation by Hierarchical clustering and GO (gene ontology) showed that the main molecule functions of the proteins significantly changed in these processes were involved in binding (52.7%), catalytic (25.3%), structural molecule and transporter (6.6%).
Animals ; Antlers ; chemistry ; Chromatography, Liquid ; Collagen ; chemistry ; Down-Regulation ; Freeze Drying ; Gene Expression Regulation ; Proteomics ; Tandem Mass Spectrometry ; Technology, Pharmaceutical ; methods ; Up-Regulation

BACKGROUND: At present, the transplantation of bone marrow-derived endothelial progenitor cells (BM-EPCs) or bone marrow-derived hepatocyte stem cells (BDHSCs) is common in the treatment of liver fibrosis, but the combined treatment for liver fibrosis is rarely reported. Combined transplantation of BM-EPCs possessing the function of angiogenesis and BDHSCs possessing the function of hepatocyte regeneration might play a dual anti-fibrosis role. OBJECTIVE: To evaluate the reversal effect on liver fibrosis by the combined transplantation of BM-EPCs and BDHSCs in rats. METHODS: The liver fibrosis rat models were induced with CCl4 subcutaneous injections for 6 weeks. BM-EPCs of rats with liver fibrosis were obtained by culture induction in vitro.BDHSCs of rats with liver fibrosis were obtained by magnetic bead cell sorting.BM-EPCs and/or BDHSCs were transplanted into liver fibrosis rats via the tail vein and branch of the portal vein,and then the effects of BDHSCs transplantatiron on liver fibrosis and liver function were observed. RESULTS AND CONCLUSION: (1) Masson staining results showed transplantations of BDHSCs and BM-EPCs, alone or both, could suppress the formation of collagen fibers. However, the staging scores of liver fibrosis showed that only the combined transplantation of BM-EPCs and BDHSCs could significantly improve liver fibrosis,which was significantly different from the model group(1.75±0.25 vs. 3.00±0.19, P < 0.05). (2) The liver biochemical assay in the blood showed that the levels of all five parameters of alanine aminotransferase, aspartate aminotransferase, total bilirubin, prothrombin time, and activated partial thromboplastin time in the BM-EPCs/BDHSCs group were significantly improved to be equivalent to normal levels, compared with those in the model group (P < 0.05). To conclude, it is an effective treatment for liver fibrosis by the co-transplantation of BM-EPCs and BDHSCs.

Objective To evaluate the value of combined optical coherence tomography (OCT) and intravascular ultrasound (IVUS) examinations in detecting coronary artery plaque during percutaneous transluminal coronary intervention (PCI).Methods CICT and IVUS examinations were performed on 30 diseased coronary vessels from 27 patients underwent PCI from Feb.2008 to Jul.2008.Results Seventeen vulnerable plaques (4 intima tearing which were not detected by IVUS),5 plaque rupture (1 out of 5 was detected by IVUS),5 thrombus lesions (1 out of 5 was found by IVUS),12 thin-cap lipid-rich lesions (2 detected by ivus) were detected by OCT in 22 lesions (without 8 lesions post DES stents).Analysis result of plaque burden by IVUS was superior to that obtained by OC T.In 8 DES stents (implanted for 6 months to 4 years).OCT detected 2 had severe restenosis,6 stents struts were completely covered with neointima without restenosis,1 stent had aneurysm-like dilatation.IVUS results were similar except for limitations on exactly detecting neointima post stenting.In 19 newly implanted stents.the incidence of stent underexpansion detected by OCT was 26.0% (same as that by IVUS).stent malappesition was 63.2% (10.5%by IVUS,P＜0.01),near stent tearing was 10.5% (not detected by IVUS),tissue prolapse between coronary stent struts was 52.6% (10.5% in IVUS,P＜0.05).Conclusions OCT imaging is superior to IVUS on detecting vulnerable plaques and change of structure around stents while IVUS is superior to OCT on estimating plaque burden in patients underwent PCI.

Factor VII Deficiency ; diagnosis ; genetics ; Female ; Humans ; Middle Aged ; Pedigree ; Phenotype

AIMTo synthesize new fluoroquinolone analogues as antibacterial compounds.

METHODS AND RESULTSBy reaction of acryl chloride(chloro-carbonic ester) with sodium sulfocyanate, acyl isosulfocyanic ester were easily obtained. Twelve 7-(4-acylamino-thiocarbamoyl-1-piperazinyl) fluoroquinolone analogues (1-12) were synthesized through modifying the 7-piperazine of norflorxacin and ciprofloxacin with isosulfocyanic ester synthesized above. The structures of synthesized compounds were characterized by 1HNMR, IR and elemental analysis.

CONCLUSIONAntibacterial activities of the new compounds were evaluated in vitro compared with norflorxacin. Compounds 5, 7, 10 and 12 showed antibacterial activities.

Anti-Infective Agents ; chemical synthesis ; chemistry ; pharmacology ; Bacillus subtilis ; drug effects ; Ciprofloxacin ; chemistry ; pharmacology ; Combinatorial Chemistry Techniques ; methods ; Escherichia coli ; drug effects ; Fluoroquinolones ; chemical synthesis ; chemistry ; pharmacology ; Microbial Sensitivity Tests ; Molecular Structure ; Norfloxacin ; chemistry ; pharmacology