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132篇 您的检索式:作者名="Raymond L A"
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1Immunohistochemical expression of SP-NK-1R-EGFR pathway and VDR in colonic inflammation and neoplasia显示文摘AIM:To determine the expression of neurokinin-1receptor(NK-1R),phosphorylated epidermal growth factor receptor(p EGFR),cyclooxygenase-2(Cox-2),and vitamin D receptor(VDR)in normal,inflammatory bowel disease(IBD),and colorectal neoplasia tissues from Puerto Ricans.METHODS:Tissues from patients with IBD,colitisassociated colorectal cancer(CAC),sporadic dysplasia,and sporadic colorectal cancer(CRC),as well as normal controls,were identified at several centers in Puerto Rico.Archival formalin-fixed,paraffin-embedded tissues were de-identified and processed by immunohistochemistry for NK-1R,p EGFR,Cox-2,and VDR.Pictures of representative areas of each tissues diagnosis were taken and scored by three observers using a4-point scale that assessed intensity of staining.Tissues with CAC were further analyzed by photographing representative areas of IBD and the different grades of dysplasia,in addition to the areas of cancer,within each tissue.Differences in the average age between the five patient groups were assessed with one-way analysis of variance and Tukey-Kramer multiple comparisons test.The mean scores for normal tissues and tissues with IBD,dysplasia,CRC,and CAC were calculatedand statistically compared using one-way analysis of variance and Dunnett’s multiple comparisons test.Correlations between protein expression patterns were analyzed with the Pearson’s product-moment correlation coefficient.Data are presented as mean±SE.RESULTS:On average,patients with IBD were younger(34.60±5.81)than normal(63.20±6.13,P<0.01),sporadic dysplasia(68.80±4.42,P<0.01),sporadic cancer(74.80±4.91,P<0.001),and CAC(57.50±5.11,P<0.05)patients.NK-1R in cancer tissue(sporadic CRC,1.73±0.34;CAC,1.57±0.53)and sporadic dysplasia(2.00±0.45)were higher than in normal tissues(0.73±0.19).p EGFR was significantly increased in sporadic CRC(1.53±0.43)and CAC(2.25±0.47)when compared to normal tissue(0.07±0.25,P<0.05,P<0.001,respectively).Cox-2 was significantly increased in sporadic colorectal cancer(2.20±0.23 vs 0.80±0.37 for normal tissues,P<0.05).In comparison to normal(2.80±0.13)and CAC(2.50±0.33)tissues,VDR was significantly decreased in sporadic dysplasia(0.00±0.00,P<0.001 vs normal,P<0.001 vs CAC)and sporadic CRC(0.47±0.23,P<0.001 vs normal,P<0.001 vs CAC).VDR levels negatively correlated with NK-1R(r=-0.48)and p EGFR(r=-0.56)in normal,IBD,sporadic dysplasia and sporadic CRC tissue,but not in CAC.CONCLUSION:Immunohistochemical NK-1R and p EGFR positivity with VDR negativity can be used to identify areas of sporadic colorectal neoplasia.VDR immunoreactivity can distinguish CAC from sporadic cancer.Raymond A Isidro Myrella L Cruz Angel A Isidro Axel Baez Axel Arroyo William A González-Marqués Carmen González-Keelan Esther A Torres Caroline B Appleyard 2015World Journal of Gastroenterology2015,21,6:7
2Serum vitamin D and colonic vitamin D receptor in inflammatory bowel disease显示文摘AIM: To determine serum vitamin D levels and colonic vitamin D receptor(VDR) expression in inflammatory bowel disease(IBD) and non-IBD patients and correlate these with histopathology.METHODS: Puerto Rican IBD(n = 10) and non-IBD(n = 10) patients ≥ 21 years old scheduled for colonoscopy were recruited. Each patient completed a questionnaire and provided a serum sample and a colonic biopsy of normal-appearing mucosa. For IBD patients, an additional biopsy was collected from visually diseased mucosa. Serum vitamin D levels were measured by ultra-performance liquid chromatography and mass spectrometry. Hematoxylin and eosin stained tissue sections from colonic biopsies were classified histologically as normal or colitis(active/inactive), and scored for the degree of inflammation present(0-3, inactive/absent to severe). Tissue sections from colonic biopsies were also stained by immunohistochemistry for VDR, for which representative diagnostic areas were photographed and scored for staining intensity using a 4-point scale.RESULTS: The IBD cohort was significantly younger(40.40 ± 5.27, P < 0.05) than the non-IBD cohort(56.70 ± 1.64) with a higher prevalence of vitamin D deficiency(40% vs 20%, respectively) and insufficiency(70% vs 50%, respectively). Histologic inflammation was significantly higher in visually diseased mucosa from IBD patients(1.95 ± 0.25) than in normalappearing mucosa from control patients(0.25 ± 0.08, P < 0.01) and from IBD patients(0.65 ± 0.36, P < 0.05) and correlated inversely with VDR expression in visually diseased colonic tissue from IBD patients(r =-0.44, P < 0.05) and from IBD patients with Crohn's disease(r =-0.69, P < 0.05), but not in normal-appearing colonic tissue from control patients or IBD patients. Control and IBD patient serum vitamin D levels correlated positively with VDR expression in normal colon from control and IBD patients(r = 0.38, P < 0.05) and with patient age(r = 0.54, P < 0.01). CONCLUSION: Levels of serum vitamin D correlate positively with colonic VDR expression in visually normal mucosa whereas inflammation correlates negatively with colonic VDR expression in visually diseased mucosa in Puerto Rican patients.Yamilka Abreu-Delgado Raymond A Isidro Esther A Torres Alexandra González Myrella L Cruz Angel A Isidro Carmen I González-Keelan Priscilla Medero Caroline B Appleyard 2016World Journal of Gastroenterology2016,22,13:5
3B7-1 and B7-2 costimulatory molecules activate differentially the Th1/Th2 developmental pathways: Application to autoimmune disease therapy显示文摘Vijay K Kuchroo Mercy Prabhu Das Julia A Brown Ann M Ranger Scott S Zamvil Raymond A Sobel Howard L Weiner Nasrin Nabavi Laurie H Glimcher 1995Cell1995,,5:2
4Inter- and intra-organizational knowledge transfer: a meta-ana- lytic review and assessment of its antecedents and eonse- quences显示文摘RAYMOND W JUSTIN J P J MARJORIE A L 2008Journal of Management Studies2008,45,4:1
5Phosphorylation of amino acid neurotransmitter receptors in synaptic plasticity显示文摘RAYMOND L A BLACKSTONE C D HUGANIR R L 1993Trends Neurosci1993,16,:1
6Temporal variability of aphid biological control in contrasting landscape contexts显示文摘Raymond L Ortiz-Martinez S A Lavandero B 2015Biological Control2015,90,:1
7Intramolecular versus in termolecular disulfide bonds in prion proteins显示文摘 Raymond L D Scheraga H A 2002J Biol Chem2002,277,33:1
8The antigenici- ty and evolution of influenza H1 haemagglutinin, from 1950-1957 and 1977-1983: two pathways from one gene 显示文摘Raymond F L Caton A J Cox N J 1986Virology1986,148,2:1
9An educational framework to support gerontological nursing education at the baccalaureate level显示文摘Plowfield L A Raymond J E Hayes E R 2006J Prof Nuts2006,22,2:1
10Estim- ation of basic density of Eucalyptus globules using near- infrared spectroscopy显示文摘Schimleck L R Mitchell A L Raymond C A 1999Canadian Journal of Forest Research1999,29,2:1
11Adsorption inhibition as a mechanism of freezing resistance in polar fishes显示文摘Raymond J A De Vries A L 1977Proc Natl Acad Sci USA1977,74,6:1
12A computerized method of visual acuity testing显示文摘Roy W Beck Pamela S Moke Andrew H Turpin Frederick L Ferris John Paul SanGiovanni Chris A Johnson Eileen E Birch Danielle L Chandler Terry A Cox R.Clifford Blair Raymond T Kraker 2003American Journal of Ophthalmology2003,,2:1
13Safety and tolerability of intraputaminal delivery of CERE-120 (adeno-associated virus serotype 2–neurturin) to patients with idiopathic Parkinson’s disease: an open-label, phase I trial显示文摘William J Marks Jill L Ostrem Leonard Verhagen Philip A Starr Paul S Larson Roy AE Bakay Robin Taylor Deborah A Cahn-Weiner A Jon Stoessl C Warren Olanow Raymond T Bartus 2008Lancet Neurology2008,,5:1
14Cellular and molecular Pharmac- ology of oxaliplatin显示文摘Raymond E Faivre S Chaney S et a l 2002Mol Cancer Ther2002,1,3:1
15Zebra mussel invasion in a large, turbid river: Phytoplankton response to increased grazing 显示文摘Caraco N F Cole J J Raymond P A Strayer D L Pace M L Findlay Stuart E G Fischer D T 1997Ecology1997,78,2:1
16Types of tech- nological scanning in manufacturing SMEs: an empirical analy- sis of patterns and determinants 显示文摘JULIEN P A RAYMOND L JACOB R 1999Entrepreneurship & Re- gional Development1999,11,4:1
17Release of an ice-active substance by sea ice diatoms显示文摘Raymond J A Sullivan C W Devries A L 1994Polar Biol1994,14,:1
18Reduction of Haloacetic Acids by Fe0:Implications for Treatment and Fate显示文摘Raymond M Zhang L Arnold W A 2001Environ Sci Technol2001,35,11:1
19Development of near infrared reflectance analysis calibrations for estimating genetic parameters for cellulose content in Eucalyptus globules显示文摘Raymond C A Sehimleck L R 2002Canadian Journal of Forest Research2002,32,1:1
20Farrington use of a Pilodyn for the indirect selection of basic density in Eucalyptus nitens 显示文摘Greaves B L Borralho N M G Raymond C A 1996Canadian Journal of Forest Research1996,26,:1
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