Results 41 to 50 of about 6,731 (160)

Hepatitis B Viral Mutants and Their Relevance to the Canadian Health Care System

Canadian Journal of Gastroenterology and Hepatology, Volume 16, Issue 1, Page 45-54, 2002., 2002
Over the past 10 years, an increasing number of mutations in the hepatitis B virus genome have been described. While the majority of these mutations appear to be ‘silent’ or not clinically relevant, some have been described in association with increased severity of disease (core and basic core promoter mutations), evasion of immunological surveillance (
Gerald Y Minuk
wiley   +1 more source

High expression of anti-apoptotic genes in grade I and II meningiomas

Arquivos de Neuro-Psiquiatria
One of the different genetic mechanisms involved in the carcinogenesis of meningiomas is influenced by interactions between proteins that induce and inhibit apoptosis.
Daniela Pretti da Cunha Tirapelli, Sarah Bomfim Menezes, Indira Maynart Franco, Isis Lacrose Lustosa, Andressa Romualdo Rodrigues, Paulo Cézar Novais, Antônio César Mendes Santiago, Fernanda Maris Peria, Luciano Neder Serafini, Alexandre Magno da Nóbrega Marinho, Carlos Gilberto Carlotti Jr, Benedicto Oscar Colli, Luís Fernando Tirapelli   +12 more
doaj   +1 more source

Absence of mutagenicity and antimutagenicity of the extract obtained from the flowers of "ipê roxo" Tabebuia impetiginosa (Mart. ex DC.) Standl [PDF]

, 2010
A Tabebuia impetiginosa, conhecida popularmente como ipê-roxo, é uma planta nativa das florestas tropicais chuvosas da América do Sul e Central. Componentes químicos obtidos da casca têm mostrado efeito terapêutico, como antiinflamatório, antifúngico e ...
CECCHI, A.O., JORDÃO, A.A., LOURENÇO, J.A., PITANGUI, C.P., VANNUCCHI, H.   +4 more
core   +2 more sources

Nutrition and Gastric Cancer

Canadian Journal of Gastroenterology and Hepatology, Volume 14, Issue D, Page 51D-54D, 2000., 2000
The reasons for the worldwide decline in stomach cancer incidence and mortality rates are not fully understood, but dietary changes are clearly implicated. While the possible mechanisms of gastric carcinogenesis and the impact of Helicobacter pylori eradication remain open to debate, at least two practical recommendations – to increase fruit and ...
Carlo La Vecchia, Silvia Franceschi
wiley   +1 more source

Regulation Is in the Air: The Relationship between Hypoxia and Epigenetics in Cancer

Cells, 2019
Hypoxia is an inherent condition of tumors and contributes to cancer development and progression. Hypoxia-inducible factors (HIFs) are the major transcription factors involved in response to low O2 levels, orchestrating the expression of hundreds of ...
Diego Camuzi, Ísis Salviano Soares de Amorim, Luis Felipe Ribeiro Pinto, Leonardo Oliveira Trivilin, André Luiz Mencalha, Sheila Coelho Soares Lima   +5 more
doaj   +1 more source

Carcinoma hepatocelular. Parte 1: considerações gerais e diagnóstico [PDF]

Arquivos de Gastroenterologia, 2000
São revistos aspectos relativos à incidência/prevalência, fatores de risco, proliferação celular (carcinogênese), anatomia patológica, progressão e evolução das hepatites virais B e C para o carcinoma hepatocelular inicial, alguns dados clínicos da ...
Vinício Paride CONTE
doaj   +1 more source

Efeito de promotores tumorais em pele de gerbil, Meriones unguiculatus

Revista Brasileira de Cancerologia, 2022
Supondo que a resistência relativa da pele de gerbil adulto à carcinogênese química estaria relacionada a um fenômeno de adaptação ao processo de promoção tumoral, foi caracterizado o efeito de óleo de cróton (OC) e peróxido de benzoíla (PB) sobre a ...
Maria Angélica Guzmán-Silva
doaj   +1 more source

Mineral bioavailability in vegetarian and omnivorous meals served in a university restaurant [PDF]

, 2007
Objetivo: Avaliar a biodisponibilidade de cálcio, ferro e zinco nas dietas vegetarianas e onívoras, servidas no Restaurante Universitário da Universidade de Brasília.
Arruda, Sandra Fernandes, Mendes, Juliana Frossard Ribeiro, Siqueira, Egle Machado de Almeida   +2 more
core   +1 more source

Intra‐ and interlaboratory reproducibility evaluation toward international validation status of the AmpFire assay

Journal of Medical Virology, Volume 96, Issue 6, June 2024.
Abstract To meet the screening goal of WHO's 90‐70‐90 strategy aimed at eliminating cervical cancer (CC) by 2030, clinical validation of human papillomavirus (HPV) assays is essential to provide accurate and valid results through fulfilling three criteria of the international validation guidelines (IVGs).
Pui Yan Jenny Chung, Sharonjit K. Dhillon, Alice Baraquin, Yuliya Tkachenka, Killian Jacquot, Jean‐Luc Prétet, Davy Vanden Broeck, Marc Arbyn   +7 more
wiley   +1 more source

Dysplasia in Inflammatory Bowel Diseases: Definition and Clinical Impact

Canadian Journal of Gastroenterology and Hepatology, Volume 13, Issue 8, Page 671-678, 1999., 1999
Dysplasia is a morphological term that ethymologically means ‘malformation’. For the definition of inflammatory bowel disease‐related dysplasia, the nature and origin of the malformation are stressed and the lesion is defined as an epithelial malformation that is unequivocally neoplastic but noninvasive.
Karel Geboes, Paul Rutgeerts
wiley   +1 more source