OBJECTIVES: To assess oxidative damage to DNA during lung cancer (LC) treatments. DESIGN AND METHODS: Urinary levels of 8-oxoguanine (8-oxoGua) and levels of 8-oxo-2'-deoxyguanosine (8-oxodG) from urine and whole blood were determined in 36 non-cancer controls and 65 LC patients before any treatments. Samples were also obtained of LC patients during and after radiotherapy (RT, n=33) and chemotherapy (CT, n=16). RESULTS: Stage IV LC patients had higher urinary 8-oxoGua and 8-oxodG levels than patients with stage I-III disease (p=0.044 and p=0.034, respectively). Urinary 8-oxodG levels increased during the first week of RT (p<0.001). Nuclear 8-oxodG increased during RT and 3 months after start of RT. Nuclear 8-oxodG levels also rose between the first two CT cycles (p=0.043), and urinary 8-oxodG levels during the sixth CT cycle (p=0.009). CONCLUSIONS: Urinary DNA damage biomarker levels may be associated with LC stage. Both RT and CT increase the parameters of DNA oxidation.
OBJECTIVES: To assess oxidative damage to DNA during lung cancer (LC) treatments. DESIGN AND METHODS: Urinary levels of 8-oxoguanine (8-oxoGua) and levels of 8-oxo-2'-deoxyguanosine (8-oxodG) from urine and whole blood were determined in 36 non-cancer controls and 65 LC patients before any treatments. Samples were also obtained of LC patients during and after radiotherapy (RT, n=33) and chemotherapy (CT, n=16). RESULTS: Stage IV LC patients had higher urinary 8-oxoGua and 8-oxodG levels than patients with stage I-III disease (p=0.044 and p=0.034, respectively). Urinary 8-oxodG levels increased during the first week of RT (p<0.001). Nuclear 8-oxodG increased during RT and 3 months after start of RT. Nuclear 8-oxodG levels also rose between the first two CT cycles (p=0.043), and urinary 8-oxodG levels during the sixth CT cycle (p=0.009). CONCLUSIONS: Urinary DNA damage biomarker levels may be associated with LC stage. Both RT and CT increase the parameters of DNA oxidation.
Authors: Kasper Broedbaek; Volkert Siersma; Jon T Andersen; Morten Petersen; Shoaib Afzal; Brian Hjelvang; Allan Weimann; Richard D Semba; Luigi Ferrucci; Henrik E Poulsen Journal: Free Radic Res Date: 2011-01-28
Authors: Joanna M S Davies; Josiane Cillard; Bertrand Friguet; Enrique Cadenas; Jean Cadet; Rachael Cayce; Andrew Fishmann; David Liao; Anne-Laure Bulteau; Frédéric Derbré; Amélie Rébillard; Steven Burstein; Etienne Hirsch; Robert A Kloner; Michael Jakowec; Giselle Petzinger; Delphine Sauce; Florian Sennlaub; Isabelle Limon; Fulvio Ursini; Matilde Maiorino; Christina Economides; Christian J Pike; Pinchas Cohen; Anne Negre Salvayre; Matthew R Halliday; Adam J Lundquist; Nicolaus A Jakowec; Fatima Mechta-Grigoriou; Mathias Mericskay; Jean Mariani; Zhenlin Li; David Huang; Ellsworth Grant; Henry J Forman; Caleb E Finch; Patrick Y Sun; Laura C D Pomatto; Onnik Agbulut; David Warburton; Christian Neri; Mustapha Rouis; Pierre Cillard; Jacqueline Capeau; Jean Rosenbaum; Kelvin J A Davies Journal: Geroscience Date: 2017-12-21 Impact factor: 7.713
Authors: Abigail T Berman; Jason Turowski; Rosemarie Mick; Keith Cengel; Nicole Farnese; Lisa Basel-Brown; Clementina Mesaros; Ian Blair; James Lawson; Melpo Christofidou-Solomidou; James Lee; Ramesh Rengan Journal: J Pulm Respir Med Date: 2013-08-30