PMID- 22008315 OWN - NLM STAT- MEDLINE DCOM- 20120703 LR - 20191210 IS - 1347-4820 (Electronic) IS - 1346-9843 (Linking) VI - 76 IP - 1 DP - 2012 TI - Urinary 8-hydroxy-2'-deoxyguanosine as a novel biomarker for predicting cardiac events and evaluating the effectiveness of carvedilol treatment in patients with chronic systolic heart failure. PG - 117-26 AB - BACKGROUND: The authors recently reported that urinary 8-hydroxy-2'-deoxyguanosine (U8-OHdG) derived from cardiac tissue reflects clinical status and cardiac dysfunction severity in patients with chronic heart failure (CHF). The aim of the present study was to investigate whether U8-OHdG levels can accurately predict cardiac events in CHF patients and their response to beta-blocker treatment. METHODS AND RESULTS: Plasma brain natriuretic peptide (BNP) and U8-OHdG levels were measured in 186 consecutive CHF patients before discharge. Patients were then prospectively followed (median follow-up, 649 days) with endpoints of cardiac death or hospitalization due to progressive heart failure. From receiver operating characteristic curve analysis, cut-offs were 12.4ng/mg creatinine (Cr) for U8-OHdG and 207pg/ml for BNP. On multivariate Cox analysis, U8-OHdG and BNP were independent predictors of cardiac events. Patients were classified into 4 groups according to U8-OHdG and BNP cut-offs. The hazard ratio for cardiac events in patients with BNP >/=207pg/ml and U8-OHdG >/=12.4ng/mg Cr was 16.2 compared with approximately 4 for patients with only 1 indicator above its respective cut-off. Furthermore, carvedilol therapy was initiated in 30 CHF patients. In responders (>/=10% increase in left ventricular ejection fraction [LVEF] or >/=1 class decrease in New York Heart Association [NYHA] class), U8-OHdG levels decreased significantly along with improved NYHA class, LVEF, and BNP levels after treatment. CONCLUSIONS: U8-OHdG may be a useful biomarker for predicting cardiac events and evaluating beta-blocker therapy effectiveness in CHF patients. FAU - Susa, Takehisa AU - Susa T AD - Division of Cardiology, Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Ube, Japan. FAU - Kobayashi, Shigeki AU - Kobayashi S FAU - Tanaka, Takeo AU - Tanaka T FAU - Murakami, Wakako AU - Murakami W FAU - Akashi, Shintaro AU - Akashi S FAU - Kunitsugu, Ichiro AU - Kunitsugu I FAU - Okuda, Shinichi AU - Okuda S FAU - Doi, Masahiro AU - Doi M FAU - Wada, Yasuaki AU - Wada Y FAU - Nao, Tomoko AU - Nao T FAU - Yamada, Jutaro AU - Yamada J FAU - Ueyama, Takeshi AU - Ueyama T FAU - Okamura, Takayuki AU - Okamura T FAU - Yano, Masafumi AU - Yano M FAU - Matsuzaki, Masunori AU - Matsuzaki M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111019 PL - Japan TA - Circ J JT - Circulation journal : official journal of the Japanese Circulation Society JID - 101137683 RN - 0 (Adrenergic beta-Antagonists) RN - 0 (Biomarkers) RN - 0 (Carbazoles) RN - 0 (Propanolamines) RN - 0K47UL67F2 (Carvedilol) RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - 88847-89-6 (8-Hydroxy-2'-Deoxyguanosine) RN - G9481N71RO (Deoxyguanosine) SB - IM MH - 8-Hydroxy-2'-Deoxyguanosine MH - Adrenergic beta-Antagonists/*therapeutic use MH - Adult MH - Aged MH - Biomarkers/blood/urine MH - Carbazoles/*therapeutic use MH - Carvedilol MH - Chronic Disease MH - Death, Sudden, Cardiac/*epidemiology MH - Deoxyguanosine/*analogs & derivatives/urine MH - Female MH - Follow-Up Studies MH - Heart Failure, Systolic/*drug therapy/*mortality/urine MH - Humans MH - Male MH - Middle Aged MH - Natriuretic Peptide, Brain/blood MH - Predictive Value of Tests MH - Propanolamines/*therapeutic use MH - Prospective Studies MH - Risk Factors MH - Treatment Outcome EDAT- 2011/10/20 06:00 MHDA- 2012/07/04 06:00 CRDT- 2011/10/20 06:00 PHST- 2011/10/20 06:00 [entrez] PHST- 2011/10/20 06:00 [pubmed] PHST- 2012/07/04 06:00 [medline] AID - JST.JSTAGE/circj/CJ-11-0537 [pii] AID - 10.1253/circj.cj-11-0537 [doi] PST - ppublish SO - Circ J. 2012;76(1):117-26. doi: 10.1253/circj.cj-11-0537. Epub 2011 Oct 19.