Carnoy's solution is an adequate tissue fixative for routine surgical pathology, preserving cell morphology and molecular integrity

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art_PEREIRA_Carnoys_solution_is_an_adequate_tissue_fixative_for_2015.PDF (1.98 MB)
Citações na Scopus
28
Tipo de produção
article
Data de publicação
2015
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
WILEY-BLACKWELL
Autores
Citação
HISTOPATHOLOGY, v.66, n.3, p.388-397, 2015
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Aims: To compare Carnoy's solution (CS) and 10% neutral buffered formalin solution (NBF) as tissue fixatives in colorectal cancer specimens. Methods and results: Surgical specimens from patients with colorectal cancer were analysed. Three groups were studied, as follows: group 1 consisted of 16 paired samples fixed in CS and NBF; and groups 2 and 3 consisted of 14 prospective and 80 retrospective samples, respectively, both randomized for fixation in CS or NBF. Groups 1 and 2 were analysed for amount, quality and integrity of DNA. Morphological analysis, including some of the usual special stains and polymerase chain reaction (PCR), were also performed for group 1, and Sanger sequencing for group 2. Immunohistochemical (IHC) reactions for mismatch repair proteins were studied in groups 1 and 3. Fixative performances were similar for morphology, special stains, and IHC reactions, as well as for the amount, quality and integrity of extracted DNA. PCR amplification was not possible in two cases from CS group 1. Sanger sequencing gave conclusive results for the CS samples tested. Conclusions: Carnoy's solution and NBF are equivalent fixatives for colorectal cancer specimens and are adequate for routine utilization in surgical and molecular pathology.
Palavras-chave
Carnoy's solution, DNA extraction, formalin, immunohistochemistry, tissue fixation
URI
https://observatorio.fm.usp.br/handle/OPI/9363
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MGT
Artigos e Materiais de Revistas Científicas - FM/MPT
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - HC/ICHC
Artigos e Materiais de Revistas Científicas - LIM/14
Artigos e Materiais de Revistas Científicas - LIM/37
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