نتایج جستجو برای: ionizing myrtus radiation

تعداد نتایج: 241009  

Journal: :Interventional Cardiology 2018

Journal: :Environmental Health Perspectives 2007

2014
Helaine Graziele Santos Vieira Priscila Grynberg Mainá Bitar Simone da Fonseca Pires Heron Oliveira Hilário Andrea Mara Macedo Carlos Renato Machado Hélida Monteiro de Andrade Glória Regina Franco

Trypanosoma cruzi, the causative agent of Chagas disease, is extremely resistant to ionizing radiation, enduring up to 1.5 kGy of gamma rays. Ionizing radiation can damage the DNA molecule both directly, resulting in double-strand breaks, and indirectly, as a consequence of reactive oxygen species production. After a dose of 500 Gy of gamma rays, the parasite genome is fragmented, but the chrom...

Journal: :Cancer research 2005
Kuang-Yu Jen Vivian G Cheung

The tumor suppressor p53 plays an essential role in cellular adaptation to stress. In response to ionizing radiation, p53 regulates the transcription of genes in a diverse set of pathways including DNA repair, cell cycle arrest, and apoptosis. Previously, we identified by microarray analysis a set of genes that are transcriptionally activated or repressed in response to radiation exposure. In t...

Journal: :Archives of pediatrics & adolescent medicine 2011
Adam L Dorfman Reza Fazel Andrew J Einstein Kimberly E Applegate Harlan M Krumholz Yongfei Wang Emmanuel Christodoulou Jersey Chen Ramon Sanchez Brahmajee K Nallamothu

OBJECTIVE To determine population-based rates of the use of diagnostic imaging procedures with ionizing radiation in children, stratified by age and sex. DESIGN Retrospective cohort analysis. SETTING All settings using imaging procedures with ionizing radiation. PATIENTS Individuals younger than 18 years, alive, and continuously enrolled in UnitedHealthcare between January 1, 2005, and De...

2013
Maria Teresa Giardi Eleftherios Touloupakis Delfina Bertolotto Gabriele Mascetti

Humans are constantly exposed to ionizing radiation deriving from outer space sources or activities related to medical care. Absorption of ionizing radiation doses over a prolonged period of time can result in oxidative damage and cellular dysfunction inducing several diseases, especially in ageing subjects. In this report, we analyze the effects of ionizing radiation, particularly at low doses...

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