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Cytogenetic characterization and evaluation of c-MYC gene amplification in PG10...
Ribeiro,H.F.; Alcântara,D.F.A.; Matos,L.A.; Sousa,J.M.C.; Leal,M.F.; Smith,M.A.C.; Burbano,R.R.; Bahia,M.O.Gastric cancer is the fourth most frequent type of cancer and the second cause of cancer mortality worldwide. The genetic alterations described so far for gastric carcinomas include amplifications and mutations of the c-ERBB2, KRAS, MET, TP53, and c-MYC genes. Chromosomal instability described for gastric cancer includes gains and losses of whole chromosomes or parts of them and these events might lead to oncog...
Methylation status of ANAPC1, CDKN2A and TP53 promoter genes in individuals wit...
Lima,E.M.; Leal,M.F.; Burbano,R.R.; Khayat,A.S.; Assumpção,P.P.; Bello,M.J.; Rey,J.A.; Smith,M.A.C.; Casartelli,C.Gastric cancer is the forth most frequent malignancy and the second most common cause of cancer death worldwide. DNA methylation is the most studied epigenetic alteration, occurring through a methyl radical addition to the cytosine base adjacent to guanine. Many tumor genes are inactivated by DNA methylation in gastric cancer. We evaluated the DNA methylation status of ANAPC1, CDKN2A and TP53 by methylation-spe...
TP53 codon 72 polymorphism as a risk factor for cardiovascular disease in a Bra...
Smith,M.A.C.; Silva,M.D.A.; Cendoroglo,M.S.; Ramos,L.R.; Araujo,L.M.Q.; Labio,R.W.; Burbano,R.R.; Chen,E.S.; Payão,S.L.M.TP53, a tumor suppressor gene, has a critical role in cell cycle, apoptosis and cell senescence and participates in many crucial physiological and pathological processes. Identification of TP53 polymorphism in older people and age-related diseases may provide an understanding of its physiology and pathophysiological role as well as risk factors for complex diseases. TP53 codon 72 (TP53:72) polymorphism was inve...
Cytotoxicity and genotoxicity of low doses of mercury chloride and methylmercur...
Silva-Pereira,L.C.; Cardoso,P.C.S.; Leite,D.S.; Bahia,M.O.; Bastos,W.R.; Smith,M.A.C.; Burbano,R.R.Mercury is a xenobiotic metal that is a highly deleterious environmental pollutant. The biotransformation of mercury chloride (HgCl2) into methylmercury chloride (CH3HgCl) in aquatic environments is well-known and humans are exposed by consumption of contaminated fish, shellfish and algae. The objective of the present study was to determine the changes induced in vitro by two mercury compounds (HgCl2 and CH3HgC...
Frequency of Werner helicase 1367 polymorphism and age-related morbidity in an ...
Smith,M.A.C.; Silva,M.D.A.; Araujo,L.Q.; Ramos,L.R.; Labio,R.W.; Burbano,R.R.; Peres,C.A.; Andreoli,S.B.; Payão,S.L.M.; Cendoroglo,M.S.Werner syndrome (WS) is a premature aging disease caused by a mutation in the WRN gene. The gene was identified in 1996 and its product acts as a DNA helicase and exonuclease. Some specific WRN polymorphic variants were associated with increased risk for cardiovascular diseases. The identification of genetic polymorphisms as risk factors for complex diseases affecting older people can improve their prevention, ...
Neurofilament proteins in neurodegenerative diseases
Liu, Q.; Xie, F.; Siedlak, S. L.; Nunomura, A.; Honda, K.; Moreira, P. I.; Zhua, X.; Smith, M. A.; Perry, G.The function of neurofilaments, the major component in large myelinated neurons, is not well understood even though they were discovered as structures over 100 years ago. Recent studies have suggested that neuro-filaments are closely related to many neurodegenerative diseases, such as amyotrophic lateral sclerosis, Parkinson disease Alzheimer disease, and diabetes. Using in vitro assays, cultures and transgenic...
Conventional cytogenetic characterization of a new cell line, ACP01, establishe...
Lima,E.M.; Rissino,J.D.; Harada,M.L.; Assumpção,P.P.; Demachki,S.; Guimarães,A.C.; Casartelli,C.; Smith,M.A.C.; Burbano,R.R.Gastric cancer is the second most frequent type of neoplasia and also the second most important cause of death in the world. Virtually all the established cell lines of gastric neoplasia were developed in Asian countries, and western countries have contributed very little to this area. In the present study we describe the establishment of the cell line ACP01 and characterize it cytogenetically by means of in vi...
Mortality on grower/finisher-only swine operations in the United States
Losinger,W.C.; Bush,E.J.; Smith,M.A.; Corso,B.A.For 53 grower/finisher-only swine operations that participated in the United States National Animal Health Monitoring System 1995 National Swine Study, mortality among finisher pigs ranged from 0 to 12.0% over a 6-month period. Twenty-six (49.1%) had <2% mortality, and 27 (50.9%) had >2% mortality. Nine (17.0%) operations experienced >4% mortality. Fisher's exact test revealed that operations with all-in all-ou...
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