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1. DNA methylation age calculators reveal association with diabetic neuropathy in type 1 diabetes

Author

Thomas Donner, P. Rezaeian, John I. Malone, Sharon B. Schwartz, Xiaoyu Gao, Szilard Kiss, Matthew J. Budoff, David R. Sell, A. Dwoskin, Ronald J. Prineas, C. Pittman, M. Reid, C. McDonald, S. Caulder, M. Szpiech, Oscar B. Crofford, Rachel G. Miller, Louis A. Lobes, M. Patronas, C. Canny, M. E. Lackaye, Sandra R. Montezuma, Richard M. Bergenstal, Patricia Gatcomb, Julie A. Stoner, H. Pan, James L. Kinyoun, J. Mortenson, Osama Hamdy, Connie Fountain, David D. Moore, Kusiel Perlman, R. Trail, David A. Lee, J. Sheindlin, Samuel Dagogo-Jack, Jeffrey L. Mahon, Jill P. Crandall, L. Gill, T. Thompson, Lee M. Jampol, K. Koushan, David S. Schade, J. Brown-Friday, M. Basco, S. Dunnigan, J. Bylsma, R. Birk, L. H. Ketai, J. Hotaling, Stephen W. Scherer, W. Mestrezat, Stephan Villavicencio, R. Lyon, M. Carney, John Kramer, Sunder Mudaliar, David M. Nathan, M. Moran, F. Leandre, James W. Albers, L. Survant, Joseph F. Polak, Manjot K. Gill, Anton Orlin, M. Prince, Pamela A. Silver, Amy K. Saenger, John D. Brunzell, Kathleen E. Bainbridge, L. Babbione, Amisha Wallia, J. Vaccaro-Kish, Bradley D. Jones, M. Hebdon, L. McKenzie, Richard M. Hoffman, S. Chang, C. Siebert, George S. Sharuk, D. Counts, A. Lucas, P. Ramos, N. Burkhart, N. Bakshi, N. Flaherty, D. Kenny, M. Driscoll, Harjit Chahal, Ronald K. Mayfield, S. Hensley, E. Weimann, M. Franz, Martin J. Stevens, N. S. Gregory, Christopher J. O'Donnell, J. Laechelt, Pamela Ossorio, Jerry P. Palmer, Rama Natarajan, G. Ziegler, K. Martin, R. Beaser, C. Beck, L. Zhang, T. J. Declue, David M. Kendall, H. Solc, A. Vella, H. Martinez, Cormac T. Taylor, S. Neill, Douglas A. Greene, P. Lee, D. Norman, Andrew J. Barkmeier, Dean P. Hainsworth, Alka Jain, Sapna Gangaputra, N. Thangthaeng, Lorraine Thomas, Michael H. Brent, M. Bracey, Philip Raskin, Q. Clemens, Barbara H. Braffett, Mark S. Mandelcorn, Lloyd Paul Aiello, John E. Godine, T. Speigelberg, R. Chan, R. Hanna, Shelley B. Bull, William I. Sivitz, R. Sussman, C. Kwong, S. Cercone, P. Hollander, N. Leloudes, Joseph M. Terry, J. Wesche, E. A. Tanaka, D. Rosenberg, Wanjie Sun, L. Sun, Tom Clark, Deborah K. Schlossman, Louis M. Luttrell, R. Dunn, A. Farr, K. McVary, Gayle M. Lorenzi, A. Joseph, Catherine C. Cowie, M. Barr, D. Zimbler, S. Mendley, S. Schussler, N. Grove, Matthew D. Davis, Jong Mu Sun, Sophie Rogers, John P. Bantle, Brandy N. Rutledge, Senda Ajroud-Driss, Vincent M. Monnier, Cladd E. Stevens, Y. G. He, M. Phillips, C. Williams, J. MacIndoe, Kaleigh Farrell, Helen Lambeth, Ayad A. Jaffa, J. Quin, Morey W. Haymond, R. Kirby, D. Steinberg, William H. Herman, M. Mech, Arup Das, Robert Detrano, J. Brown, D. McMillan, Linda Snetselaar, Mark W. Johnson, R. Zeitler, T. Taylor, Peter R. Pavan, Michael H. Goldbaum, Bruce A. Perkins, R. G. Campbell, David A. Nicolle, R. J. van der Geest, Irene Hramiak, D. Freking, Lucy A. Levandoski, S. Colson, Charles Campbell, Victoria R. Trapani, Lawrence J. Singerman, D. Meyer, W. Tang, J. Soule, Anita Harrington, Julie A. Nelson, John A. Colwell, Naji Younes, P. Salemi, K. Hansen, Trevor J. Orchard, S. Huddleston, L. Steranchak, C. Sommer, G. Castle, J. Ginsberg, Paula McGee, V. Gama, John Dupre, Z. Strugula, M. Swenson, N. Wong, David A. Bluemke, M. Nutaitis, Anita Agarwal, M. Lin, K. Nickander, Elsayed Z. Soliman, Joao A. Lima, M. L. Schluter, Fred W. Whitehouse, Lisa Diminick, C. Cornish, M. Spencer, Daniel T. Lackland, Ionut Bebu, Hunter Wessells, S. Yacoub-Wasef, A. Determan, L. Van Ottingham, Howard Wolpert, R. Ehrlich, A. Blevins, L. Jovanovic, D. Finegold, Davida F. Kruger, Jye-Yu C. Backlund, K. Chan, Timothy J. Murtha, R. K. Mayfield, Robert W. Cavicchi, Maria F. Lopes-Virella, Thomas A. Weingeist, K. Lee, Mary E. Larkin, B. Blodi, J. Gott, Timothy J. Lyons, J. Selby, Chris Ryan, J. Harth, P. Pugsley, L. Keasler, John D. Maynard, Paul G. Arrigg, Amy B. Karger, P. Colby, J. Farquhar, Mark H. Schutta, Murk-Hein Heinemann, Kathie L. Hermayer, B. Bosco, C. Lovell, A. Bhan, A. Galprin, M. Cayford, M. Schumer, John E. Chapin, D. Rubinstein, F. Miao, V. Asuquo, Catherine L. Martin, Rodney A. Lorenz, Samuel S. Engel, L. Funk, Cyndi F. Liu, Barbara J. Maschak-Carey, Stephen S. Feman, P. Lindsey, M. Giotta, Philip A. Low, S. Kwon, R. Fahlstrom, A. Iannacone, B. French, H. Remtema, L. Cimino, S. Barron, J. McConnell, Jane L. Lynch, L. Kim, T. Williams, A. Degillio, Blanche M. Chavers, M. Novak, Julio V. Santiago, Ronald P. Danis, P. Gaston, Tae Sup Lee, T. Woodfill, R. Cuddihy, Scott M. Steidl, Alanna C. Morrison, E. Ryan, D. Lawrence, D. Cros, T. Adkins, D. Adelman, L. Dews, Patricia A. Cleary, J. Parker, L. Olmos De Koo, C. Kim, Mark R. Palmert, P. Astelford, Stefan Fritz, B. Olson, Kelvin C. Fong, Alan M. Jacobson, Stanley L. Hazen, D. Hornbeck, K. Folino, M. L. Bernal, Gabriel Virella, William V. Tamborlane, Neil H. White, Daniel L. McGee, Denis Daneman, H. Shamoon, William Dahms, S. Elsing, S. Brink, J. Ahern, Delnaz Roshandel, John M. Pach, N. W. Rodger, E. Cupelli, Dara D. Koozekanani, Abbas E. Kitabchi, K. Stoessel, B. Petty, Jamie R. Wood, J. Seegmiller, T. Strand, Y. Li, Eva L. Feldman, Larry Rand, Robert C. Colligan, T. Smith, A. Carlson, David J. Brillon, Margaret L. Bayless, M. Ong, S. Darabian, W. Hsu, Janet E. Olson, B. Rogness, N. Silvers, M. Pfiefer, B. Schaefer, E. Mendelson, S. Braunstein, Maren Nowicki, R. Reed, James S. Floyd, Z. M. Zhang, T. Sandford, R. B. Avery, A. Pratt, Paolo S. Silva, H. Bode, Alexander J. Brucker, Nikhil D. Patel, Alexander R. Lyon, M. Jenner, N. Wimmergren, L. Tuason, J. Rosenzwieg, D. J. Becker, C. Gauthier-Kelly, M. Richardson, Richard S. Crow, Andrew D. Paterson, Mark E. Molitch, Suzanne M. Strowig, S. Pendegast, M. Burger, Ramzi K. Hemady, J. Dingledine, I. H. de Boer, L. Mayer, F. Perdikaris, Om P. Ganda, F. Thoma, Karen J. Cruickshanks, Abraham Thomas, K. Klumpp, Jerry D. Cavallerano, D. Zheng, Annette Barnie, J. L. Canady, C. Wigley, David G. Miller, Sheila Smith-Brewer, D. Ostrowski, P. Crawford, K. Kelly, Robert G. Devenyi, B. Zimmerman, Susan M. Hitt, C. Johnson, L. Gurry, R. Jarboe, E. Angus, David E. Goldstein, A. Killeen, H. Schrott, Orville G. Kolterman, Mark R. Burge, Michael Rubin, J. Lipps Hagan, Alicia J. Jenkins, Hugh D. Wabers, R. Warhol, Edward Chaum, Karen L. Jones, L. Spillers, C. Miao, J. K. Jones, Angelo J. Canty, Rickey E. Carter, Evrim B. Turkbey, B. Burzuk, R. Woodwick, Evica Simjanoski, Michael W. Steffes, S. Crowell, Suresh D. Shah, H. Ricks, J. D. Carey, Paul A. Edwards, S. Holt, W. F. Schwenk, Ronald J. Oudiz, E. Brown, J. Heier, R. L. Ufret-Vincenty, L. M. Aiello, Robert A. Rizza, Karen L. Anderson, Valerie L. Arends, J. Giangiacomo, R. Liss, Aruna V. Sarma, B. Levy, Ellen J. Anderson, S. Catton, P. Callahan, Rodica Pop-Busui, S. Debrabandere, S. Moser, Bernard H. Doft, A. Malayeri, C. Johannes, R. Ramker, J. Rich, M. Fox, Rukhsana G. Mirza, Katherine A. Morgan, Thomas J. Songer, C. Shah, H. Engel, Saul M. Genuth, S. Ferguson, Anushka Patel, C. Haggan, P. Lou, J. Gordon, M. B. Murphy, D. Sandstrom, Dawn M. Ryan, Daniel H. O'Leary, B. Gloeb, Lois E. Schmidt, H. Zegarra, D. Dalton, W. Brown, Tom G. Sheidow, Margaret E. Stockman, Shyam M. Thomas, Charles McKitrick, Jyotika K. Fernandes, P. A. Bourne, L. Baker, G. Friedenberg, Allan Gordon, Allan L. Drash, S. Yoser, D. Wood, S. Johnsonbaugh, A. De Manbey, L. Kaminski, M. May, L. Bestourous, A. Kowarski, M. Geckle, M. Hartmuller, Michael Bryer-Ash, S. List, F. Goetz, V. Reppucci, D. Etzwiler, Rose A. Gubitosi-Klug, M. Brabham, E. Golden, A. Nayate, J. Hu, M. McLellan, Ronald Klein, N. Rude, B. Vittetoe, John M. Lachin, M. Christofi, Zhuo Chen, Isaac Boniuk, C. Strauch, K. Gunyou, L. Delahanty, W. T. Garvey, Andrew P. Boright, Larry D. Hubbard, D. Weiss, Igor Grant, Jonathan Q. Purnell, Jean M. Bucksa, N. Olson, and B. Zinman

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Diabetic neuropathy, Adolescent, 030209 endocrinology & metabolism, Gastroenterology, Nephropathy, Epigenesis, Genetic, Diabetic complications, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Diabetic Neuropathies, Internal medicine, Diabetes mellitus, Albumins, Genetics, Medicine, Humans, Molecular Biology, Genetics (clinical), Whole blood, Oligonucleotide Array Sequence Analysis, Type 1 diabetes, business.industry, Research, dNaM, DNA methylation age, DNA Methylation, medicine.disease, 030104 developmental biology, Blood pressure, Peripheral neuropathy, Diabetes Mellitus, Type 1, CpG Islands, Female, business, Developmental Biology, Genome-Wide Association Study
Abstract

Background Many CpGs become hyper or hypo-methylated with age. Multiple methods have been developed by Horvath et al. to estimate DNA methylation (DNAm) age including Pan-tissue, Skin & Blood, PhenoAge, and GrimAge. Pan-tissue and Skin & Blood try to estimate chronological age in the normal population whereas PhenoAge and GrimAge use surrogate markers associated with mortality to estimate biological age and its departure from chronological age. Here, we applied Horvath’s four methods to calculate and compare DNAm age in 499 subjects with type 1 diabetes (T1D) from the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study using DNAm data measured by Illumina EPIC array in the whole blood. Association of the four DNAm ages with development of diabetic complications including cardiovascular diseases (CVD), nephropathy, retinopathy, and neuropathy, and their risk factors were investigated. Results Pan-tissue and GrimAge were higher whereas Skin & Blood and PhenoAge were lower than chronological age (p < 0.0001). DNAm age was not associated with the risk of CVD or retinopathy over 18–20 years after DNAm measurement. However, higher PhenoAge (β = 0.023, p = 0.007) and GrimAge (β = 0.029, p = 0.002) were associated with higher albumin excretion rate (AER), an indicator of diabetic renal disease, measured over time. GrimAge was also associated with development of both diabetic peripheral neuropathy (OR = 1.07, p = 9.24E−3) and cardiovascular autonomic neuropathy (OR = 1.06, p = 0.011). Both HbA1c (β = 0.38, p = 0.026) and T1D duration (β = 0.01, p = 0.043) were associated with higher PhenoAge. Employment (β = − 1.99, p = 0.045) and leisure time (β = − 0.81, p = 0.022) physical activity were associated with lower Pan-tissue and Skin & Blood, respectively. BMI (β = 0.09, p = 0.048) and current smoking (β = 7.13, p = 9.03E−50) were positively associated with Skin & Blood and GrimAge, respectively. Blood pressure, lipid levels, pulse rate, and alcohol consumption were not associated with DNAm age regardless of the method used. Conclusions Various methods of measuring DNAm age are sub-optimal in detecting people at higher risk of developing diabetic complications although some work better than the others.

Published
2020

2. Oxidative Stress and Cardiovascular Risk in Type 1 Diabetes Mellitus: Insights From the DCCT/EDIC Study

Author

W.H. Wilson Tang, Paula McGee, John M. Lachin, Daniel Y. Li, Byron Hoogwerf, Stanley L. Hazen, D.M. Nathan, B. Zinman, O. Crofford, S. Genuth, J. Brown‐Friday, J. Crandall, H. Engel, S. Engel, H. Martinez, M. Phillips, M. Reid, H. Shamoon, J. Sheindlin, R. Gubitosi‐Klug, L. Mayer, S. Pendegast, H. Zegarra, D. Miller, L. Singerman, S. Smith‐Brewer, M. Novak, J. Quin, Saul Genuth, M. Palmert, E. Brown, J. McConnell, P. Pugsley, P. Crawford, W. Dahms, N.S. Gregory, M.E. Lackaye, S. Kiss, R. Chan, A. Orlin, M. Rubin, D. Brillon, V. Reppucci, T. Lee, M. Heinemann, S. Chang, B. Levy, L. Jovanovic, M. Richardson, B. Bosco, A. Dwoskin, R. Hanna, S. Barron, R. Campbell, A. Bhan, D. Kruger, J.K. Jones, P.A. Edwards, J.D. Carey, E. Angus, A. Thomas, A. Galprin, M. McLellan, F. Whitehouse, R. Bergenstal, M. Johnson, K. Gunyou, L. Thomas, J. Laechelt, P. Hollander, M. Spencer, D. Kendall, R. Cuddihy, P. Callahan, S. List, J. Gott, N. Rude, B. Olson, M. Franz, G. Castle, R. Birk, J. Nelson, D. Freking, L. Gill, W. Mestrezat, D. Etzwiler, K. Morgan, L.P. Aiello, E. Golden, P. Arrigg, V. Asuquo, R. Beaser, L. Bestourous, J. Cavallerano, R. Cavicchi, O. Ganda, O. Hamdy, R. Kirby, T. Murtha, D Schlossman, S. Shah, G. Sharuk, P. Silva, P. Silver, M. Stockman, J. Sun, E. Weimann, H. Wolpert, L.M. Aiello, A. Jacobson, L. Rand, J. Rosenzwieg, M.E. Larkin, M. Christofi, K. Folino, J. Godine, P. Lou, C. Stevens, E. Anderson, H. Bode, S. Brink, C. Cornish, D. Cros, L. Delahanty, eManbey, C. Haggan, J. Lynch, C. McKitrick, D. Norman, D. Moore, M. Ong, C. Taylor, D. Zimbler, S. Crowell, S. Fritz, K. Hansen, C. Gauthier‐Kelly, F.J. Service, G. Ziegler, A. Barkmeier, L. Schmidt, B. French, R. Woodwick, R. Rizza, W.F. Schwenk, M. Haymond, J. Pach, J. Mortenson, B. Zimmerman, A. Lucas, R. Colligan, L. Luttrell, M. Lopes‐Virella, S. Caulder, C. Pittman, N. Patel, K. Lee, M. Nutaitis, J. Fernandes, K. Hermayer, S. Kwon, A Blevins, J. Parker, J. Colwell, D. Lee, J. Soule, P. Lindsey, M. Bracey, A. Farr, S. Elsing, T. Thompson, J. Selby, T. Lyons, S. Yacoub‐Wasef, M. Szpiech, D. Wood, R. Mayfield, M. Molitch, D. Adelman, S. Colson, L. Jampol, A. Lyon, M. Gill, Z. Strugula, L. Kaminski, R. Mirza, E. Simjanoski, D. Ryan, C. Johnson, A. Wallia, S. Ajroud‐Driss, P. Astelford, N. Leloudes, A. Degillio, B. Schaefer, S. Mudaliar, G Lorenzi, M. Goldbaum, K. Jones, M. Prince, M. Swenson, I. Grant, R. Reed, R. Lyon, O. Kolterman, M. Giotta, T. Clark, G. Friedenberg, W.I. Sivitz, B. Vittetoe, J. Kramer, M. Bayless, R. Zeitler, H. Schrott, N. Olson, L. Snetselaar, R. Hoffman, J. MacIndoe, T. Weingeist, C. Fountain, R. Miller, S. Johnsonbaugh, M. Patronas, M. Carney, S. Mendley, P. Salemi, R. Liss, M. Hebdon, D. Counts, T. Donner, J. Gordon, R. Hemady, A. Kowarski, D. Ostrowski, S. Steidl, B. Jones, W.H. Herman, C.L. Martin, R. Pop‐Busui, D.A. Greene, M.J. Stevens, N. Burkhart, T. Sandford, J. Floyd, J. Bantle, N. Flaherty, J. Terry, D. Koozekanani, S. Montezuma, N. Wimmergren, B. Rogness, M. Mech, T. Strand, J. Olson, L. McKenzie, C. Kwong, F. Goetz, R. Warhol, D. Hainsworth, D. Goldstein, S. Hitt, J. Giangiacomo, D.S Schade, J.L. Canady, M.R. Burge, A. Das, R.B. Avery, L.H. Ketai, J.E. Chapin, M.L. Schluter, J. Rich, C. Johannes, D. Hornbeck, M. Schutta, P.A. Bourne, A. Brucker, S. Braunstein, S. Schwartz, B.J. Maschak‐Carey, L. Baker, T. Orchard, L. Cimino, T. Songer, B. Doft, S. Olson, D. Becker, D. Rubinstein, R.L. Bergren, J. Fruit, R. Hyre, C. Palmer, N. Silvers, L. Lobes, P. Paczan Rath, P.W. Conrad, S. Yalamanchi, J. Wesche, M. Bratkowksi, S. Arslanian, J. Rinkoff, J. Warnicki, D. Curtin, D. Steinberg, G. Vagstad, R. Harris, L. Steranchak, J. Arch, K. Kelly, P. Ostrosaka, M. Guiliani, M. Good, T. Williams, K. Olsen, A. Campbell, C. Shipe, R. Conwit, D. Finegold, M. Zaucha, A. Drash, A. Morrison, J.I. Malone, M.L. Bernal, P.R. Pavan, N. Grove, E.A. Tanaka, D. McMillan, J. Vaccaro‐Kish, L. Babbione, H. Solc, T.J. DeClue, S. Dagogo‐Jack, C. Wigley, H. Ricks, A. Kitabchi, E. Chaum, M.B. Murphy, S. Moser, D. Meyer, A. Iannacone, S. Yoser, M. Bryer‐Ash, S. Schussler, H. Lambeth, P. Raskin, S. Strowig, M. Basco, S. Cercone, A. Barnie, R. Devenyi, M. Mandelcorn, M. Brent, S. Rogers, A. Gordon, N. Bakshi, B. Perkins, L. Tuason, F. Perdikaris, R. Ehrlich, D. Daneman, K. Perlman, S Ferguson, J. Palmer, R. Fahlstrom, I.H. de Boer, J. Kinyoun, L. Van Ottingham, S. Catton, J. Ginsberg, C. McDonald, J. Harth, M. Driscoll, T. Sheidow, J. Mahon, C. Canny, D. Nicolle, P. Colby, J. Dupre, I. Hramiak, N.W. Rodger, M. Jenner, T. Smith, W. Brown, M. May, J. Lipps Hagan, A. Agarwal, T. Adkins, R. Lorenz, S. Feman, L. Survant, N.H. White, L. Levandoski, G. Grand, M. Thomas, D. Joseph, K. Blinder, G. Shah, D. Burgess, I. Boniuk, J. Santiago, W. Tamborlane, P. Gatcomb, K. Stoessel, P. Ramos, K. Fong, P. Ossorio, J. Ahern, L. Meadema‐Mayer, C. Beck, K. Farrell, J Quin, P. Gaston, R. Trail, J. Lachin, J. Backlund, I. Bebu, B. Braffett, L. Diminick, X. Gao, W. Hsu, K. Klumpp, H. Pan, V. Trapani, P. Cleary, P. McGee, W. Sun, S. Villavicencio, K. Anderson, L. Dews, Naji Younes, B. Rutledge, K. Chan, D. Rosenberg, B. Petty, A. Determan, D. Kenny, C. Williams, C. Cowie, C. Siebert, M. Steffes, V. Arends, J. Bucksa, M. Nowicki, B. Chavers, D. O'Leary, J. Polak, A. Harrington, L. Funk, R Crow, B. Gloeb, S. Thomas, C. O'Donnell, E.Z. Soliman, Z.M. Zhang, Y. Li, C. Campbell, L. Keasler, S. Hensley, J. Hu, M. Barr, T. Taylor, R. Prineas, E.L. Feldman, J.W. Albers, P. Low, C. Sommer, K. Nickander, T. Speigelberg, M. Pfiefer, M. Schumer, M. Moran, J. Farquhar, C. Ryan, D. Sandstrom, M. Geckle, E. Cupelli, F. Thoma, B. Burzuk, T. Woodfill, R. Danis, B. Blodi, D. Lawrence, H. Wabers, S. Gangaputra, S. Neill, M. Burger, J. Dingledine, V. Gama, R. Sussman, M. Davis, L. Hubbard, M. Budoff, S. Darabian, P. Rezaeian, N. Wong, M. Fox, R. Oudiz, L Kim, R. Detrano, K. Cruickshanks, D. Dalton, K. Bainbridge, J. Lima, D. Bluemke, E. Turkbey, der Geest, C. Liu, A. Malayeri, A. Jain, C. Miao, H. Chahal, R. Jarboe, V. Monnier, D. Sell, C. Strauch, S. Hazen, A. Pratt, W. Tang, J. Brunzell, J. Purnell, R. Natarajan, F. Miao, L. Zhang, Z. Chen, A. Paterson, A. Boright, S. Bull, L. Sun, S. Scherer, T.J. Lyons, A. Jenkins, R. Klein, G. Virella, A. Jaffa, R. Carter, J. Stoner, W.T. Garvey, D. Lackland, M. Brabham, D. McGee, D. Zheng, R.K. Mayfield, J. Maynard, H. Wessells, A Sarma, R. Dunn, S. Holt, J. Hotaling, C. Kim, Q. Clemens, J. Brown, and K. McVary

Subjects
medicine.medical_specialty, endocrine system diseases, 030209 endocrinology & metabolism, Disease, 030204 cardiovascular system & hematology, Lower risk, medicine.disease_cause, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, Diabetes mellitus, medicine, Diseases of the circulatory (Cardiovascular) system, Coronary Heart Disease, Glycemic, Original Research, free radical, Inflammation, Type 1 diabetes, biology, business.industry, Paraoxonase, medicine.disease, paraoxonase, 3. Good health, RC666-701, Cohort, diabetes mellitus, biology.protein, Cardiology and Cardiovascular Medicine, business, Oxidant Stress, Oxidative stress, F2Isoprostane, Biomarkers
Abstract

Background Hyperglycemia leading to increased oxidative stress is implicated in the increased risk for the development of macrovascular and microvascular complications in patients with type 1 diabetes mellitus. Methods and Results A random subcohort of 349 participants was selected from the DCCT / EDIC (Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications) cohort. This included 320 controls and 29 cardiovascular disease cases that were augmented with 98 additional known cases to yield a case cohort of 447 participants (320 controls, 127 cases). Biosamples from DCCT baseline, year 1, and closeout of DCCT , and 1 to 2 years post‐ DCCT ( EDIC years 1 and 2) were measured for markers of oxidative stress, including plasma myeloperoxidase, paraoxonase activity, urinary F 2α isoprostanes, and its metabolite, 2,3 dinor‐8 iso prostaglandin F 2α . Following adjustment for glycated hemoblobin and weighting the observations inversely proportional to the sampling selection probabilities, higher paraoxonase activity, reflective of antioxidant activity, and 2,3 dinor‐8 iso prostaglandin F 2α , an oxidative marker, were significantly associated with lower risk of cardiovascular disease (−4.5% risk for 10% higher paraoxonase, P iso prostaglandin F 2α , P =0.0092). In contrast, the oxidative markers myeloperoxidase and F 2α isoprostanes were not significantly associated with cardiovascular disease after adjustment for glycated hemoblobin. There were no significant differences between DCCT intensive and conventional treatment groups in the change in all biomarkers across time segments. Conclusions Heightened antioxidant activity (rather than diminished oxidative stress markers) is associated with lower cardiovascular disease risk in type 1 diabetes mellitus, but these biomarkers did not change over time with intensification of glycemic control. Clinical Trial Registration URL : https://www.clinicaltrials.gov . Unique identifiers: NCT 00360815 and NCT 00360893.

Published
2018

3. Quality Control Measures over 30 Years in a Multicenter Clinical Study: Results from the Diabetes Control and Complications Trial / Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) Study

Author

M. Bracey, B. French, Brandy N. Rutledge, Sharon B. Schwartz, D. Steinberg, Peter R. Pavan, Xiaoyu Gao, Alan M. Jacobson, David A. Nicolle, C. Canny, Maria F. Lopes-Virella, A. Kitabchi, K. Hansen, M. E. Lackaye, Denis Daneman, Kandace A. Klumpp, David A. Lee, H. Engel, L. Survant, C. Haggan, K. Lee, G. Ziegler, Dawn M. Ryan, Lloyd Paul Aiello, Tom G. Sheidow, Allan Gordon, Allan L. Drash, S. Johnsonbaugh, L. Kaminski, S. Yoser, David J. Brillon, Osama Hamdy, Connie Fountain, N. Silvers, Kusiel Perlman, S. Caulder, M. Szpiech, D. Freking, Paula McGee, George S. Sharuk, D. Counts, H. Solc, David E. Goldstein, L. Bestourous, W. F. Schwenk, E. Brown, S. Cercone, M. Patronas, James L. Kinyoun, G. Castle, Mark H. Schutta, M. L. Schluter, Anton Orlin, E. Chaum, Daniel P. Joseph, F. Goetz, V. Reppucci, D. Etzwiler, E. Golden, A. Iannacone, R. Kirby, Lucy A. Levandoski, Lawrence J. Singerman, P. Salemi, A. Morrison, G. Vagstad, J. Laechelt, Pamela Ossorio, Tae Sup Lee, R. Cuddihy, S. Hitt, Fred W. Whitehouse, Michael H. Brent, Gayle M. Lorenzi, Anthony D. Morrison, B. Zinman, Szilard Kiss, D. Norman, N. Olson, Thomas Donner, John Dupre, M. Swenson, M. Spencer, Jerry P. Palmer, Scott M. Steidl, M. Franz, R. Beaser, H. Martinez, Samuel S. Engel, L. Diminick, J. Mortenson, David S. Schade, S. Yacoub-Wasef, Misty Good, John E. Chapin, Paolo S. Silva, J. Ginsberg, A. Dwoskin, John P. Bantle, J. D. Carey, D. McMillan, R. G. Campbell, Lisa Diminick, C. Cornish, Ramzi K. Hemady, P. Hollander, A. Farr, D. Zimbler, M. Mech, A. Lucas, Jye-Yu C. Backlund, K. Chan, Timothy J. Murtha, V. Asuquo, A. Bhan, A. Galprin, F. Perdikaris, Michael D. Larsen, L. Gill, Pamela A. Silver, S. Brink, Louis M. Luttrell, Sheila Smith-Brewer, D. Ostrowski, M. Bratkowksi, P. Crawford, M. Bryer-Ash, E. Angus, S. Braunstein, John I. Malone, R. Conwit, C. Pittman, Louis A. Lobes, Rodney A. Lorenz, J. Rosenzwieg, Neil H. White, William I. Sivitz, D. J. Becker, Stephen S. Feman, M. Zaucha, M. Reid, M. Jenner, L. Tuason, C. Gauthier-Kelly, C. McDonald, William H. Herman, John Kramer, Jeffrey L. Mahon, A. Campbell, J. L. Canady, A. Degillio, T. Adkins, P. W. Conrad, Senda Ajroud-Driss, L. Dews, Stephan Villavicencio, David G. Miller, Manjot K. Gill, D. Curtin, J. Brown-Friday, M. Basco, Elsayed Z. Soliman, J. Selby, Bradley D. Jones, M. Hebdon, B. Olson, John M. Pach, N. W. Rodger, K. Stoessel, N. Leloudes, J. Floyd, H. Lambeth, G. Lorenzi, Richard M. Hoffman, S. Chang, M. Guiliani, H. Zegarra, N. Bakshi, Dean P. Hainsworth, Murk-Hein Heinemann, S. Dagogo-Jack, Wanjie Sun, J. Warnicki, Dean B. Burgess, D. Kenny, L. McKenzie, B. Rogness, Martin J. Stevens, M. Nutaitis, William V. Tamborlane, L. Schmidt, Deborah K. Schlossman, J. Giangiacomo, C. Williams, R. Liss, Barbara J. Maschak-Carey, Barbara H. Braffett, Stefan Fritz, J. MacIndoe, Tom Clark, M. Novak, Michael H. Goldbaum, A. DeManbey, J. Ahern, L. Jovanovic, D. Finegold, Davida F. Kruger, Mary E. Larkin, M. Johnson, S. Shah, M. Ong, Catherine L. Martin, M. Giotta, R. Reed, B. Levy, Evica Simjanoski, L. Cimino, P. Callahan, S. Crowell, Rodica Pop-Busui, Howard Wolpert, Bernard H. Doft, J. Arch, C. Shipe, Mark R. Palmert, Philip Raskin, B. Schaefer, P. Astelford, Dara D. Koozekanani, R. B. Avery, Michael W. Steffes, Robert A. Rizza, Karen L. Anderson, Charles McKitrick, P. A. Bourne, L. Baker, G. Friedenberg, D. Wood, J. Wesche, M. Phillips, Gaurav K. Shah, John M. Lachin, M. Christofi, Kevin J. Blinder, R. Ehrlich, J. Rinkoff, Morey W. Haymond, Irene Hramiak, Z. Strugula, A. Blevins, R. Hyre, M. Richardson, Mark E. Molitch, I. H. de Boer, Annette Barnie, Mark R. Burge, M. Prince, P. Ramos, R. Chan, R. Hanna, Jong Mu Sun, Suzanne M. Strowig, C. Wigley, Om P. Ganda, R. Harris, Abraham Thomas, K. Klumpp, K. Kelly, David D. Moore, J. Sheindlin, T. J. Declue, Cormac T. Taylor, C. Kwong, Rose Gubitosi-Klug, T. Sandford, Isaac Boniuk, B. Zimmerman, R. Zeitler, S. Rogers, Joseph M. Terry, C. Johnson, Linda Snetselaar, Naji Younes, Ionut Bebu, N. Wimmergren, Rukhsana G. Mirza, K. Gunyou, Karl R. Olsen, H. Bode, J. Fruit, Michael Rubin, G. Grand, Trevor J. Orchard, Douglas A. Greene, J. Quin, R. Birk, W. Mestrezat, P. Pugsley, Anupam Agarwal, L. Mayer, C. Palmer, Timothy J. Lyons, C. Johannes, A. Determan, L. Van Ottingham, J. Gott, Jerry D. Cavallerano, D. Cros, J. Parker, M. May, Robert Bergren, A. Kowarski, L. Delahanty, Katherine A. Morgan, E. A. Tanaka, Robert W. Cavicchi, Thomas J. Songer, Robert G. Devenyi, J. Harth, Jill P. Crandall, T. Thompson, Lee M. Jampol, H. Schrott, Paul G. Arrigg, Orville G. Kolterman, R. Warhol, L. Thomas, S. Kwon, Jane L. Lynch, Arup Das, Theresa M. Williams, Thomas A. Weingeist, Patricia A. Cleary, Matthew A. Thomas, L. Babbione, Amisha Wallia, J. Lipps Hagan, D. Meyer, D. Rubinstein, P. Lindsey, Mark S. Mandelcorn, R. Fahlstrom, John E. Godine, Kathie L. Hermayer, B. Bosco, J. Rich, K. Folino, M. L. Bernal, S. Yalamanchi, S. Barron, J. McConnell, J. K. Jones, J. Vaccaro-Kish, R. Woodwick, P. Colby, Kelvin C. Fong, Ronald K. Mayfield, L. H. Ketai, Julio V. Santiago, M. B. Murphy, S. Schussler, N. Grove, Larry Rand, Robert C. Colligan, Ronald P. Danis, Valerie L. Arends, S. Ferguson, B. Petty, Christine Stevens, P. Ostrosaka, Margaret L. Bayless, S. Moser, Paul A. Edwards, R. Lyon, M. Carney, Katrina Jones, T. Strand, W. Hsu, Alexander J. Brucker, H. Shamoon, Alice T. Lyon, T. Smith, David M. Nathan, P. Lou, Bruce A. Perkins, Janet E. Olson, D. Rosenberg, H. Ricks, J. Gordon, D. Hornbeck, Nikhil D. Patel, Shelly Olson, Ellen J. Anderson, William Dahms, P. Paczan Rath, S. Elsing, L. Steranchak, L. M. Aiello, Saul Genuth, S. Catton, Sandra R. Montezuma, S. Pendegast, Richard M. Bergenstal, Patricia Gatcomb, Igor Grant, B. Braffett, W. Brown, Margaret E. Stockman, N. Burkhart, David M. Kendall, Jyotika K. Fernandes, S. List, J. Soule, Julie A. Nelson, John A. Colwell, M. McLellan, Silva A. Arslanian, N. Rude, B. Vittetoe, M. Driscoll, and E. Weimann

Subjects
Adult, Male, 030213 general clinical medicine, medicine.medical_specialty, Adolescent, Quality Assurance, Health Care, Psychological intervention, lcsh:Medicine, law.invention, Diabetes Complications, 03 medical and health sciences, 0302 clinical medicine, Randomized controlled trial, law, Health care, medicine, Humans, Medical physics, lcsh:Science, Multidisciplinary, Data collection, business.industry, lcsh:R, Quality control, 3. Good health, Surgery, Data quality, Cohort, 030221 ophthalmology & optometry, Female, lcsh:Q, business, Quality assurance, Follow-Up Studies, Research Article
Abstract

Implementation of multicenter and/or longitudinal studies requires an effective quality assurance program to identify trends, data inconsistencies and process variability of results over time. The Diabetes Control and Complications Trial (DCCT) and the follow-up Epidemiology of Diabetes Interventions and Complications (EDIC) study represent over 30 years of data collection among a cohort of participants across 27 clinical centers. The quality assurance plan is overseen by the Data Coordinating Center and is implemented across the clinical centers and central reading units. Each central unit incorporates specific DCCT/EDIC quality monitoring activities into their routine quality assurance plan. The results are reviewed by a data quality assurance committee whose function is to identify variances in quality that may impact study results from the central units as well as within and across clinical centers, and to recommend implementation of corrective procedures when necessary. Over the 30-year period, changes to the methods, equipment, or clinical procedures have been required to keep procedures current and ensure continued collection of scientifically valid and clinically relevant results. Pilot testing to compare historic processes with contemporary alternatives is performed and comparability is validated prior to incorporation of new procedures into the study. Details of the quality assurance plan across and within the clinical and central reading units are described, and quality outcomes for core measures analyzed by the central reading units (e.g. biochemical samples, fundus photographs, ECGs) are presented.

Published
2015

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