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1575篇 您的检索式:作者名="POWELL R"
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1High-throughput screening of mouse gene knockouts identifies established and novel skeletal phenotypes显示文摘Screening gene function in vivo is a powerful approach to discover novel drug targets. We present high-throughput screening(HTS) data for 3 762 distinct global gene knockout(KO) mouse lines with viable adult homozygous mice generated using either gene-trap or homologous recombination technologies. Bone mass was determined from DEXA scans of male and female mice at 14 weeks of age and by microCT analyses of bones from male mice at 16 weeks of age. Wild-type(WT) cagemates/littermates were examined for each gene KO. Lethality was observed in an additional 850 KO lines. Since primary HTS are susceptible to false positive findings, additional cohorts of mice from KO lines with intriguing HTS bone data were examined. Aging,ovariectomy, histomorphometry and bone strength studies were performed and possible non-skeletal phenotypes were explored. Together, these screens identified multiple genes affecting bone mass: 23 previously reported genes(Calcr, Cebpb, Crtap, Dcstamp, Dkk1, Duoxa2, Enpp1, Fgf23, Kiss1/Kiss1 r, Kl(Klotho),Lrp5, Mstn, Neo1, Npr2, Ostm1, Postn, Sfrp4, Slc30a5, Slc39a13, Sost, Sumf1, Src, Wnt10b), five novel genes extensively characterized(Cldn18, Fam20 c, Lrrk1, Sgpl1, Wnt16), five novel genes with preliminary characterization(Agpat2, Rassf5, Slc10a7, Slc26a7, Slc30a10) and three novel undisclosed genes coding for potential osteoporosis drug targets.Robert Brommage Jeff Liu Gwenn M Hansen Laura L Kirkpatrick David G Potter Arthur T Ss Brian Zambrowicz David R Powell Peter Vogel 2014Bone Research2014,2,3:7
2Leukemia:研究鉴定出与34种AML白血病亚群相关联的基因突变显示文摘针对成年急性髓细胞白血病(acute myeloid leukemia,AML)患者的一项新的大型研究将80种癌症相关基因突变与5种AML亚型相关联。这5种AML亚型可通过特异性的染色体异常加以确定。在未来,这些发现可能有助指导基因突变测试和治疗决策。A-K Eisfeld K Mrózek J Kohlschmidt D Nicolet S Orwick C J Walker K W Kroll J S Blachly A J Carroll J E Kolitz B L Powell E S Wang R M Stone A de la Chapelle J C Byrd C D Bloomfield 2017现代生物医学进展2017,17,15:7
3Macrophage secretory products induce an inflammatory phenotype in hepatocytes显示文摘AIM:To investigate the influence of macrophages on hepatocyte phenotype and function.METHODS:Macrophages were differentiated from THP-1 monocytes via phorbol myristate acetate stimulation and the effects of monocyte or macrophageconditioned medium on HepG2 mRNA and protein expression determined.The in vivo relevance of these findings was confirmed using liver biopsies from 147 patients with hepatitis C virus(HCV)infection.RESULTS:Conditioned media from macrophages,but not monocytes,induced a transient morphological change in hepatocytes associated with upregulation of vimentin(7.8±2.5-fold,P=0.045)and transforming growth factor(TGF)-β1(2.6±0.2-fold,P<0.001)and downregulation of epithelial cadherin(1.7±0.02-fold,P=0.017)mRNA expression.Microarray analysis revealed significant upregulation of lipocalin-2(17-fold,P <0.001)and pathways associated with inflammation,and substantial downregulation of pathways related to hepatocyte function.In patients with chronic HCV,realtime polymerase chain reaction and immunohistochemistry confirmed an increase in lipocalin-2 mRNA(F0 1.0 ±0.3,F1 2.2±0.2,F2 3.0±9.3,F3/4 4.0±0.8,P= 0.003)and protein expression(F1 1.0±0.5,F2 1.3± 0.4,F3/4 3.6±0.4,P=0.014)with increasing liver injury.High performance liquid chromatography-tandem mass spectrometry analysis identified elevated levels of matrix metalloproteinase(MMP)-9 in macrophageconditioned medium,and a chemical inhibitor of MMP-9 attenuated the change in morphology and mRNA expression of TGF-β1(2.9±0.2 vs 1.04±0.1,P<0.001) in macrophage-conditioned media treated HepG2 cells.In patients with chronic HCV infection,hepatic mRNA expression of CD163(F0 1.0±0.2,F1/2 2.8±0.3,F3/4 5.3±1.0,P=0.001)and MMP-9(F0 1.0±0.4,F1/2 2.8±0.3,F3/4 4.1±0.8,P=0.011)was significantly associated with increasing stage of fibrosis.CONCLUSION:Secreted macrophage products alter the phenotype and function of hepatocytes,with increased expression of inflammatory mediators,suggesting that hepatocytes actively participate in liver injury.Michelle Melino Victoria L Gadd Gene V Walker Richard Skoien Helen D Barrie Dinesh Jothimani Leigh Horsfall Alun Jones Matthew J Sweet Gethin P Thomas Andrew D Clouston Julie R Jonsson Elizabeth E Powell 2012World Journal of Gastroenterology2012,18,15:3
4Delay of disease development in transgenic plant that express the tobacco mosaic virus coat protein gene显示文摘Powell A P Nelson R S De B 1986Science1986,232,:2
5Propranolol for the prevention of postoperative arrhythmias in general thoracic surgery显示文摘Charles D Bayliff David R Massel Richard I Inculet Richard A Malthaner Susan D Quinton Frank S Powell Renee S Kennedy 1999The Annals of Thoracic Surgery1999,,1:2
6Characterization of bacteriocin ST8KF produced by a kefir isolate Lactobacillus plant arum ST8KF 显示文摘Powell J Witthuhna R Todorovb S 2007International Dairy Journal2007,17,2:1
7Introduction of gaseous hydrides into an inductively coupled plasma mass spectrometer显示文摘POWELL M J BOOMER D W MCVICARS R J 1986Analytical Chemistry1986,58,13:1
8CFC phase-out: have we met the challenge? 显示文摘Powell R L 2002Journal of Fluorine Chemistry2002,114,2:1
9Expression of snowdrop lectin in transgenic tobacco plants results in added protectin against aphids 显示文摘HILDER V A POWELL K S GATEHOUSE A M R 1995Transgenic Research1995,4,:1
10Commensal ocular bacteria degrade mucins显示文摘Berry A Harris A Lumb R Powell K 2002Br J Ophthalmol2002,86,12:1
11Low pressure granulite facies metamorphism in the Larsemann Hills area,East Antarctica:petrology and tectonic implications for the evolution of the Prydz Bay area显示文摘Stüwe K Powell R 1989J Metam Geol1989,7,:1
12Chromosome number in the Compositae Colombian species显示文摘POWELL A M KING R M 1969Am J Bot1969,56,:1
13The influence of cytokinins on in vitro shoot development of 'Concord Grape'显示文摘Pool R M Powell L E 1975J Amer Soc Hort Sci1975,100,2:1
14Gene length and codon us age bias in Drosophila raelanogaster, SaccharomS, ces cerevisiae and Escherichia coli显示文摘Moriyama E N Powell J R 1998Nucleic Acids Res1998,26,13:1
15Radiofrequency volumetrictissue reduction of the palate in subjects with sleep-disorderedbreathing显示文摘Powell N B Riley R W Troell R J 1998Chest1998,113,:1
16Poly((2,5,dialkoxy-p-phenylene)ethynylene-p-phenyleneethynylene)s and their model compounds显示文摘Li Hong Douglas R Powell Randy Khayashi 0,,01:1
17Seismic damage prediction by deterministic methods :concepts and procedures显示文摘Powell G H Allahabadi R 1988Earthquake Engineering and Struc-tural Dynamics1988,16,5:1
18Antibiotic prophy- laxis in the initial management of severe acute pancreations显示文摘POWELL J J MILES R SIRIWARDENA AK Br J Surg0,85,5:1
19BRCA1 and BRCA2 : different rolesin a common pathway of genome protection 显示文摘Roy R Chun J Powell SN 2012Nat Rev Cancer2012,,1:1
20Delay of disease development in transgenic plants that express the tobacco mosaic virus coat protein gene显示文摘Powell Abel P Nelson R S De B 1986Science1986,232,:1
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