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Immunohistochemistry versus microsatellite instability testing in phenotyping colorectal tumors.
PURPOSE To compare microsatellite instability (MSI) testing with immunohistochemical (IHC) detection of hMLH1 and hMSH2 in colorectal cancer. PATIENTS AND METHODS Colorectal cancers from 1,144Expand
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Differentiation of Pseudomonas solanacearum, Pseudomonas syzygii, Pseudomonas pickettii and the Blood Disease Bacterium by partial 16S rRNA sequencing: construction of oligonucleotide primers for
The sequence of a 292 bp segment of the DNA encoding 16S rRNA (corresponding to positions 44-337 of the Escherichia coli 16S rRNA sequence) was determined for each of 40 Pseudomonas solanacearum,Expand
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Features of colorectal cancers with high-level microsatellite instability occurring in familial and sporadic settings: parallel pathways of tumorigenesis.
High-level microsatellite instability (MSI-H) is demonstrated in 10 to 15% of sporadic colorectal cancers and in most cancers presenting in the inherited condition hereditary nonpolyposis colorectalExpand
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Emerging concepts in colorectal neoplasia.
An understanding of the mechanisms that explain the initiation and early evolution of colorectal cancer should facilitate the development of new approaches to effective prevention and intervention.Expand
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Molecular diversity of arbuscular mycorrhizal fungi colonising arable crops.
We used differences in small subunit ribosomal RNA genes to identify groups of arbuscular mycorrhizal fungi that are active in the colonisation of plant roots growing in arable fields around NorthExpand
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Reclassification of American Rhizobium leguminosarum biovar phaseoli type I strains as Rhizobium etli sp. nov.
A new Rhizobium species that nodulates Phaseolus vulgaris L. is proposed on the basis of a sequence analysis of 16S ribosomal DNA. This taxon, Rhizobium etli sp. nov., was previously named RhizobiumExpand
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Arbuscular mycorrhizal community composition associated with two plant species in a grassland ecosystem
Arbuscular mycorrhizal (AM) fungi are biotrophic symbionts colonizing about two‐thirds of land plant species and found in all ecosystems. They are of major importance in plant nutrient supply andExpand
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Three Phylogenetic Groups of nodA and nifHGenes in Sinorhizobium and Mesorhizobium Isolates from Leguminous Trees Growing in Africa and Latin America
ABSTRACT The diversity and phylogeny of nodA andnifH genes were studied by using 52 rhizobial isolates fromAcacia senegal, Prosopis chilensis, and related leguminous trees growing in Africa and LatinExpand
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Phylogeny of the phototrophic rhizobium strain BTAi1 by polymerase chain reaction-based sequencing of a 16S rRNA gene segment.
A 260-bp segment of the DNA that encodes 16S rRNA, corresponding to positions 44 to 337 in the Escherichia coli sequence, was amplified by the polymerase chain reaction and sequenced from each of 13Expand
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Pathology features in Bethesda guidelines predict colorectal cancer microsatellite instability: a population-based study.
BACKGROUND & AIMS The revised Bethesda guidelines for Lynch syndrome recommend microsatellite instability (MSI) testing all colorectal cancers in patients diagnosed before age 50 years and colorectalExpand
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