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1Impaired PI3K/Akt signal pathway and hepatocellular injury in high-fat fed rats显示文摘AIM:To determine whether mitochondrial dysfunction resulting from high-fat diet is related to impairment of the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt,also known as PKB) pathway. METHODS:Rat models of nonalcoholic fatty liver were established by high-fat diet feeding. The expression of total and phosphorylated P13K and Akt proteins in hepatocytes was determined by Western blotting. Degree of fat accumulation in liver was measured by hepatic triglyceride. Mitochondrial number and size were determined using quantitative morphometric analysis under transmission electron microscope. The permeability of the outer mitochondrial membrane was assessed by determining the potential gradient across this membrane.RESULTS:After Wistar rats were fed with high-fat diet for 16 wk,their hepatocytes displayed an accumulation of fat (103.1 ± 12.6 vs 421.5 ± 19.7,P < 0.01),deformed mitochondria (9.0% ± 4.3% vs 83.0% ± 10.9%,P < 0.05),and a reduction in the mitochondrial membrane potential (389.385% ± 18.612% vs 249.121% ± 13.526%,P < 0.05). In addition,the expression of the phosphorylated P13K and Akt proteins in hepatocytes was reduced,as was the expression of the anti-apoptotic protein Bcl-2,while expression of the pro-apoptotic protein caspase-3 was increased. When animals were treated with pharmacological inhibitors of P13K or Akt,instead of high-fat diet,a similar pattern of hepatocellular fat accumulation,mitochondrial impairment,and change in the levels of PI3K,Akt,Bcl-2 was observed. CONCLUSION:High-fat diet appears to inhibit the PI3K/Akt signaling pathway,which may lead to hepa-tocellular injury through activation of the mitochondrial membrane pathway of apoptosis.Ji-Wu Han,Department of Gastroenterology,The 4th Hospital of Harbin Medical University,Harbin 150001,Heilongjiang Province,China Xiao-Rong Zhan,Xin-Yu Li,Bing Xia,Yue-Ying Wang,Jing Zhang,Department of Endocrinology,First Hospital of Harbin Medical University,Harbin 150001,Heilongjiang Province,China Bao-Xin Li,Department of Pharmacology,State Key Laboratory of Biomedicine and Pharmacology,Harbin Medical University,Harbin 150001,Heilongjiang Province,China 2010World Journal of Gastroenterology2010,16,48:22
2Changes of serum alpha-fetoprotein and alpha-fetoprotein-L3 after hepatectomy for hepatocellular carcinoma: prognostic significance显示文摘BACKGROUND: Alpha-fetoprotein (AFP) is the most established tumor marker of hepatocellular carcinoma (HCC), but one of its limitations is non-specificity. Many studies have demonstrated that alpha-fetoprotein-L3 (AFP-L3) is more specific than AFP in the early diagnosis and prognosis of HCC. However, there is a lack of knowledge about the post-hepatectomy profiles of serum AFP and AFP-L3 values in HCC patients. To identify the profiles after surgical resection of HCC, we analyzed the correlation between the profiles and postoperative HCC recurrence or survival, and evaluated their utility in predicting postoperative therapeutic efficacy and prognosis. METHODS: From August 2003 to December 2004, 318 patients with positive serum AFP who had received surgical resections were enrolled in this study. Preoperative and postoperative serum AFP and AFP-L3 levels were measured simultaneously and regularly, and their postoperative profiles during a long term follow-up were recorded and summarized. RESULTS: A high ratio of AFP-L3 to total AFP was shown to correlate with pathologic features of aggressiveness. The overall 1-, 3-, and 5-year recurrence rates of the whole series were 28% 57%, and 84%, and the overall survival rates were 86%, 61% and 33%, respectively. The changes of serum AFP and AFP-L3 after hepatectomy for HCC were classified into 3 groups (group A: AFP-L3 undetectable; group B: AFP-L3 <10%; and group C: AFP-L3 >10%). Patients with positive postoperative AFP-L3had significantly earlier recurrence than those with negative results. The overall survival was significantly shorter in the positive groups than in the groups negative for postoperative AFP-L3.CONCLUSION: Post-hepatectomy changes in serum AFP and AFP-L3 levels occurred in three distinct patterns, which were closely correlated with HCC recurrence and patient survival with different prognostic values.Xiao-Feng Zhang, Zheng-Feng Yin, Kui Wang, Zong-Qin Zhang, Hai-Hua Qian,Le-Hua ShiAuthor Affiliations: The 4th Department of Hepatic Surgery ,Molecular Oncology Laboratory , Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China 2012Hepatobiliary & Pancreatic Diseases International2012,11,6:19
3Increased secretion of pro-inflammatory cytokines by circulating polymorphonuclear neutrophills and regulation by interleukin 10 during intestinal inflammation显示文摘Increasedsecretionofproinflammatorycytokinesbycirculatingpolymorphonuclearneutrophilsandregulationbyinterleukin10duringintes...S Nikolaus 1, J Bauditz 1, P Gionchetti 2, C Witt 3, H Lochs 1 and S Schreiber 1 1Charité University Hospital, 4th Medical Department, Humboldt University, Berlin, Germany 2Clinica Media I, Policlinico S. Orsola, University of Bolog 1998World Journal of Gastroenterology1998,4,3:17
4围术期大剂量阿托伐他汀疗法能够减少心脏手术后的急性肾损伤吗?显示文摘他汀类药物能够影响急性肾损伤(AKI)的几个环节。为了验证假说:围术期短期大剂量阿托伐他汀能够减少心脏手术后发生AKI,美国学者从2009年11月到2014年10月在范德比尔特大学医学中心进行了成人心脏手术患者的双盲、安慰剂对照的随机临床试验。Billings FT 4th Hendricks PA Schildcrout JS 王建中 2016中华肾病研究电子杂志2016,5,1:9
5Interleukin-1α, 6 regulate the secretion of vascular endothelial growth factor A, C in pancreatic cancer显示文摘Vascular endothelial growth factor (VEGF, namely VEGF-A) is an angiogenic polypeptide and VEGF-C is a lymphangiogenic polypeptide that has been implicated in cancer growth, invasion and metastasis. Several cytokines and growth factors play an important part in cancer progression. These cytokines and growth factors are the principal mediators of cancer cells-stromal cell interaction , which is critical for invasion of cancer cells to the surrounding tissues and metastatic dissemination to distant organs. In this study, we studied VEGF-A, C expression in cultured human pancreatic cancer cell lines and whether the presence of VEGF-A, C in the cell lines is regulated by cytokines interleukin-lct (EL-1α), and interleukin-6 (IL-6). METHODS: We used Northern blot and Western blot methods to analyze expression of the gene and protein of VEGF-A, C in all 6 tested cell lines (ASPC-1, CAPAN-1, MIA-PaCa-2, PANC-1, COLO-357 and T3M4) respectively. To analyze what is the regulator for this VEGF-A, C expression in pancreatic cancer,we used the reverse transcription -polymerase chain reaction (RT-PCR) method to analyze VEGF-A, C expression in cultured human pancreatic cancer cell lines (CAPAN-1 and COLO-357) under the stimulation with IL-1α (10μg/L) or IL-6 (100 μg/L). RESULTS:Northern blot analysis revealed the presence of the 4.1-kb VEGF-A mRNA transcript and 2.4-kb VEGF-C mRNA transcript in all 6 tested cell lines. Immunoblotting with highly specific anti-VEGF-A, anti-VEGF-C antibody revealed the presence of a molecular weight of 43-kDa VEGF-A protein and 55-kDa VEGF-C protein in all the cell lines. RT-PCR analysis revealed the levels of the VEGF-A and VEGF-C gene were 1-2 fold and a 1-fold increase in the COLO-357 cell line by stimulation with IL-la, however, no effect was found in the CAPAN-1 cell line. The levels of the VEGF-A and VEGF-C gene were 2-5 fold and a 1-fold increase in the CAPAN-1 cell line by stimulation with IL-6, but, no effect was found in the COLO-357 cell line. CONCLUSION:These findings suggested that the expression of VEGF-A, C and their regulation by IL-1α, IL-6 in pancreatic cancer contributes to the lymphatic and distant metastasis and the disease progression.Department of Hepatobiliary Surgery (Tang RF, Zhang FR, Peng L, Wang SX, Xiao Y and Zhang M) and Department of Dermatology (Wang SX), 4th Hospital, Hebei Medical University, Shijiazhuang 050011, China 2005Hepatobiliary & Pancreatic Diseases International2005,4,3:6
6Regulatory effects of electro-acupuncture at Zusanfi on ir-SP content in rat pituitary gland and peripheral blood and their immunity显示文摘INTRODUCTIONIt has been reported in many studies that electro-acupuncture(EA)can positively regulate erythrocyticimmunity and T-lymphocytic subgroups.Nevertheless,its mechanism remains to be explored.In thepresent study,a multi-group,multi-stepped and multi-indexed observation was conducted on the effects of EAWei Gao Yu Xin Huang Hong Chen Da Yong Song Qin Li Wang Department of Gastroenterology Medical Affair Office,Tangdu Hospital,4th Military Medical University,Xi’an 710038,Shanxi Province,China Department of Gastroenterology,Chinese PLA General Hospital of Guangzhou Command Area,Guangzhou 510210,Guangdong Province,China 2000World Journal of Gastroenterology2000,6,4:5
7Ocular Symptoms of Tumors at Sella Turcica Region显示文摘Background: The sella tumors were found in 15% of intracranial tumors. The sella turcica region locates in the base of skull, so the carcinoma patients in early stage often showed no intracranial hypertension and other positive signs of neural system. However, the patients presented visual field defect and hypopsia, and often went to see the doctor of ophthalmology, which resulted from that the tumor often compressed optic nerve and chiasm. We analysed the symptomatic changes of the visual organs in order to provide a diagnositic basis for sellar tumor in oph-thalmological department.Clinical materials: Of the 407 cases of sellar tumors, 296 were pituitary adenoma, 52 were craniopharyngioma, 43 were meningioma, and the rest 16 were other kinds of sellar tumors. We analysed their ocular changes of the sellar tumors and the characteristics of the tumors.Results: The sellar tumor in its early stage is mainly symptomized as visual field changes. Visual field defect was found in 92. 9% of pituitary adenoma,Xiangping Fu, Hongqi WangDepartment of Neuro-ophthalmology, Xijing Hospital The 4th Military Medical University Xian 710032, China 1996Eye Science1996,16,3:4
8COMPARISON OF THE EFFECTS OF DIFFERENT STRENGTHENING NETS IN MAXILLARY COMPLETE DENTURE RESIN BASE BY THREE-DIMENSIONAL FINITE ELEMENT METHODS显示文摘Diastema often occured in maxillary complete denture resin base in the clinic,although ' Lucitone 199' had been used with more tensile strength.Mechanical ex-periments have proved the high transverse tensile stress (σ_x^+) concentrating in anteri-or teeth region and their palatal surface of maxillary complete denture resin basewhile it was exposed to vertical loading in center occlusion.Setting strengtheningnet in resin base has achieved better results.For evaluating purpose,twentyY.B.Wang~1 Y.Dong~1 S.F.Zhang~1 J.S.Liu~2 Y.G.Zheng~21 Department of Prosthodontic,Stomatological College,4th Military medical University,Xi’an 710032,China2 401 Research Institute,Xi’an Electrical Science and Technology University,Xi’an 710054,China 1993Chinese Journal of Biomedical Engineering(English Edition)1993,2,3:2
9Fibrolamellar hepatoma显示文摘Ruffin M T 4th 1990Am J Gastroenterol1990,85,5:1
10Optimizing treatment and outcomes in acute heart failure:beyond initial triage显示文摘SILVER M A PEACOCK W F 4th DIERCKS D B 2006Congest Heart Fail2006,12,:1
11Map kinase and pain 显示文摘JiRR Gereau RW 4th Malcangio M 2009Brain Res Rev2009,60,:1
12MAP kinase and pain显示文摘Ji RR Gereau RW 4th Malcangio M 0,,01:1
13Human RhoGAP domain- containing proteins: structure, function and evolutionary relation- ships显示文摘Peck J Douglas G 4th Wu C H 2002FEBS Lett2002,528,13:1
14MAP Ki- nase and pain 显示文摘Ji RR Gerean RW 4th Malcangio M 2009Brain Research Reviews2009,60,1:1
15Arcuate nucleus lesions reduce opioid stress-induced analgesia (SIA) and enhance non-opioid SIA in rats 显示文摘Kelsey JE Hoerman WA 4th Kimball LD 3rd 1986Brain Res1986,382,:1
16Peripheral blood mononuclear cells from infants hospitalized because of respiratory syncytial virus infection express T helper-1 and T helper-2 cytokines and CC chemokine messenger RNA显示文摘Tripp RA Moore D Barskey A 4th 2002J Infect Dis2002,185,10:1
17Human gliomas with wild-type P53 express bcl-2显示文摘Alderson L M Castleberg R L Harsh G R 4th 1995Cancer Res1995,55,5:1
18Reconstitution of IKATP: an inward rectifier subunit plus the sulfonylurea receptor 显示文摘Inagaki N Gonoi T Clement J P 4th 1995Science1995,270,:1
19Atrial fibrosis and the mecha- nisms of atrial fibrillation 显示文摘Everett T H 4th Olgin J E 2007Heart Rhythm2007,4,2:1
20Crystal structures of the ribosome in complex with release factors RFI and RF2 Bound to a cognate stop codon 显示文摘Perry S Brodersen D E Murphy F V 4th 2005Cell2005,123,7:1
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