Abstract
As no studies before now have thoroughly investigated the risk associated with the exposure to low-dose ionizing radiations in patients undergoing catheter ablation (CA), we aimed to evaluate the oxidative and DNA damage in 59 CA patients (10 of whom received N-acetylcysteine (NAC) before the procedure). A burst of oxidized/reduced glutathione ratio was observed 3 hours after procedure that was diminished by NAC administration. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) concentrations, index of oxidative DNA damage, showed a peak 24 hours after CA. A positive correlation between 8-OHdG peak and fluoroscopy time and a negative correlation among 8-OHdG decrease (from the peak to 48 hours after CA) and all procedure parameters were found. Furthermore, DNA tail percentages (which reflect the extent and the number of DNA strand breaks) positively correlated with 8-OHdG concentrations. This study evaluates for the first time the kinetic of oxidative damage in patients undergoing CA procedure. Our findings raise the question of whether 8-OHdG can be used as a circulating biomarker of DNA oxidative damage induced by low-dose ionizing radiations in different clinical settings. Antioxid. Redox Signal. 00, 000-000.
| Original language | English |
|---|---|
| Journal | Antioxidants and Redox Signaling |
| DOIs | |
| Publication status | E-pub ahead of print - Nov 27 2017 |
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Keywords
- Journal Article
Cite this
Does Fluoroscopy Induce DNA Oxidative Damage in Patients Undergoing Catheter Ablation? / Turnu, Linda; Porro, Benedetta; Alfieri, Valentina; Di Minno, Alessandro; Russo, Eleonora; Barbieri, Simone; Bonomi, Alice; Dello Russo, Antonio; Tondo, Claudio; D'Alessandra, Yuri; Cavalca, Viviana; Tremoli, Elena; Colombo, Gualtiero I; Casella, Michela.
In: Antioxidants and Redox Signaling, 27.11.2017.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Does Fluoroscopy Induce DNA Oxidative Damage in Patients Undergoing Catheter Ablation?
AU - Turnu, Linda
AU - Porro, Benedetta
AU - Alfieri, Valentina
AU - Di Minno, Alessandro
AU - Russo, Eleonora
AU - Barbieri, Simone
AU - Bonomi, Alice
AU - Dello Russo, Antonio
AU - Tondo, Claudio
AU - D'Alessandra, Yuri
AU - Cavalca, Viviana
AU - Tremoli, Elena
AU - Colombo, Gualtiero I
AU - Casella, Michela
PY - 2017/11/27
Y1 - 2017/11/27
N2 - As no studies before now have thoroughly investigated the risk associated with the exposure to low-dose ionizing radiations in patients undergoing catheter ablation (CA), we aimed to evaluate the oxidative and DNA damage in 59 CA patients (10 of whom received N-acetylcysteine (NAC) before the procedure). A burst of oxidized/reduced glutathione ratio was observed 3 hours after procedure that was diminished by NAC administration. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) concentrations, index of oxidative DNA damage, showed a peak 24 hours after CA. A positive correlation between 8-OHdG peak and fluoroscopy time and a negative correlation among 8-OHdG decrease (from the peak to 48 hours after CA) and all procedure parameters were found. Furthermore, DNA tail percentages (which reflect the extent and the number of DNA strand breaks) positively correlated with 8-OHdG concentrations. This study evaluates for the first time the kinetic of oxidative damage in patients undergoing CA procedure. Our findings raise the question of whether 8-OHdG can be used as a circulating biomarker of DNA oxidative damage induced by low-dose ionizing radiations in different clinical settings. Antioxid. Redox Signal. 00, 000-000.
AB - As no studies before now have thoroughly investigated the risk associated with the exposure to low-dose ionizing radiations in patients undergoing catheter ablation (CA), we aimed to evaluate the oxidative and DNA damage in 59 CA patients (10 of whom received N-acetylcysteine (NAC) before the procedure). A burst of oxidized/reduced glutathione ratio was observed 3 hours after procedure that was diminished by NAC administration. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) concentrations, index of oxidative DNA damage, showed a peak 24 hours after CA. A positive correlation between 8-OHdG peak and fluoroscopy time and a negative correlation among 8-OHdG decrease (from the peak to 48 hours after CA) and all procedure parameters were found. Furthermore, DNA tail percentages (which reflect the extent and the number of DNA strand breaks) positively correlated with 8-OHdG concentrations. This study evaluates for the first time the kinetic of oxidative damage in patients undergoing CA procedure. Our findings raise the question of whether 8-OHdG can be used as a circulating biomarker of DNA oxidative damage induced by low-dose ionizing radiations in different clinical settings. Antioxid. Redox Signal. 00, 000-000.
KW - Journal Article
U2 - 10.1089/ars.2017.7334
DO - 10.1089/ars.2017.7334
M3 - Article
JO - Antioxidants and Redox Signaling
JF - Antioxidants and Redox Signaling
SN - 1523-0864
ER -