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  • 1
    Publication Date: 2006-07-11
    Description: We investigated extraneural manifestations in scrapie-infected transgenic mice expressing prion protein lacking the glycophosphatydylinositol membrane anchor. In the brain, blood, and heart, both abnormal protease-resistant prion protein (PrPres) and prion infectivity were readily detected by immunoblot and by inoculation into nontransgenic recipients. The titer of infectious scrapie in blood plasma exceeded 10(7) 50% infectious doses per milliliter. The hearts of these transgenic mice contained PrPres-positive amyloid deposits that led to myocardial stiffness and cardiac disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1820586/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1820586/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trifilo, Matthew J -- Yajima, Toshitaka -- Gu, Yusu -- Dalton, Nancy -- Peterson, Kirk L -- Race, Richard E -- Meade-White, Kimberly -- Portis, John L -- Masliah, Eliezer -- Knowlton, Kirk U -- Chesebro, Bruce -- Oldstone, Michael B A -- 5R01HL66424-04/HL/NHLBI NIH HHS/ -- AGO4342/PHS HHS/ -- NS041219-05/NS/NINDS NIH HHS/ -- P01 AG004342/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2006 Jul 7;313(5783):94-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Viral-Immunobiology Laboratory, Departments of Molecular and Integrative Neurosciences and Infectology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16825571" target="_blank"〉PubMed〈/a〉
    Keywords: Amyloid/*analysis ; Amyloidosis/blood/etiology/*pathology/physiopathology ; Animals ; Blotting, Western ; Cardiac Catheterization ; Coronary Vessels/chemistry/pathology ; Disease Models, Animal ; Glycosylphosphatidylinositols ; Heart Diseases/blood/etiology/*pathology/physiopathology ; Heart Function Tests ; Immunohistochemistry ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Microcirculation/chemistry/pathology ; Myocardial Contraction ; Myocardium/*chemistry/*pathology ; PrPC Proteins/chemistry ; PrPSc Proteins/*analysis/blood ; Scrapie/blood/*pathology/physiopathology ; Staining and Labeling ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2009-02-27
    Description: Lung disease is the major cause of morbidity and mortality in cystic fibrosis, an autosomal recessive disease caused by mutations in CFTR. In cystic fibrosis, chronic infection and dysregulated neutrophilic inflammation lead to progressive airway destruction. The severity of cystic fibrosis lung disease has considerable heritability, independent of CFTR genotype. To identify genetic modifiers, here we performed a genome-wide single nucleotide polymorphism scan in one cohort of cystic fibrosis patients, replicating top candidates in an independent cohort. This approach identified IFRD1 as a modifier of cystic fibrosis lung disease severity. IFRD1 is a histone-deacetylase-dependent transcriptional co-regulator expressed during terminal neutrophil differentiation. Neutrophils, but not macrophages, from Ifrd1-deficient mice showed blunted effector function, associated with decreased NF-kappaB p65 transactivation. In vivo, IFRD1 deficiency caused delayed bacterial clearance from the airway, but also less inflammation and disease-a phenotype primarily dependent on haematopoietic cell expression, or lack of expression, of IFRD1. In humans, IFRD1 polymorphisms were significantly associated with variation in neutrophil effector function. These data indicate that IFRD1 modulates the pathogenesis of cystic fibrosis lung disease through the regulation of neutrophil effector function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2841516/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2841516/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gu, YuanYuan -- Harley, Isaac T W -- Henderson, Lindsay B -- Aronow, Bruce J -- Vietor, Ilja -- Huber, Lukas A -- Harley, John B -- Kilpatrick, Jeffrey R -- Langefeld, Carl D -- Williams, Adrienne H -- Jegga, Anil G -- Chen, Jing -- Wills-Karp, Marsha -- Arshad, S Hasan -- Ewart, Susan L -- Thio, Chloe L -- Flick, Leah M -- Filippi, Marie-Dominique -- Grimes, H Leighton -- Drumm, Mitchell L -- Cutting, Garry R -- Knowles, Michael R -- Karp, Christopher L -- R01 AI024717/AI/NIAID NIH HHS/ -- R01 HL068890/HL/NHLBI NIH HHS/ -- R01 HL068890-01/HL/NHLBI NIH HHS/ -- R01 HL068927/HL/NHLBI NIH HHS/ -- R01 HL068927-01/HL/NHLBI NIH HHS/ -- R01 HL079312/HL/NHLBI NIH HHS/ -- R01 HL079312-01A1/HL/NHLBI NIH HHS/ -- R37 AI024717/AI/NIAID NIH HHS/ -- England -- Nature. 2009 Apr 23;458(7241):1039-42. doi: 10.1038/nature07811. Epub 2009 Feb 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Immunology, Cincinnati Children's Hospital Research Foundation and the University of Cincinnati College of Medicine, Cincinnati, Ohio 45229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19242412" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cohort Studies ; Cystic Fibrosis/*genetics/*pathology ; Disease Models, Animal ; Genotype ; Humans ; Immediate-Early Proteins/deficiency/*genetics ; Inflammation/genetics/pathology ; Mice ; Mice, Inbred C57BL ; Neutrophils/immunology/metabolism ; Polymorphism, Single Nucleotide/genetics ; Pseudomonas aeruginosa/immunology/pathogenicity ; Transcription Factor RelA/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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