Petter Bjornstad, MD
Associate Professor, Pediatrics-Endocrinology

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Residency:
  • University of Colorado (Children's Hospital Colorado) Program, Pediatrics (2015)
Fellowships:
  • University of Colorado (Children's Hospital Colorado) Program, Pediatric Endocrinology (2018)
Languages: English, Norwegian
Department: Pediatrics-Endocrinology

Professional Titles

  • Academic Editor of PLOS ONE
  • Editorial Board of Diabetes Care
  • Editorial Board of Pediatric Diabetes
  • Editorial Board of Journal of Diabetes and its Complications
  • ADA Diabetic Kidney Disease Workgroup
  • ASN DKD-C Education Workgroup

Recognition & Awards

  • Dr. Robert Goldstein Award, JDRF (2021)
  • Young Physician Scientist Award, The American Society of Clinical Investigation (ASCI) (2020)
  • American Diabetes Association (ADA), ADA Presidents' Select Abstracts (2020)
  • Diabetes Care Distinguished Reviewer Award, American Diabetes Association (ADA) (2019)
  • Best Communication Prize for A Clinical Study, European Diabetic Nephropathy Study Group (EDNSG) (2019)
  • Young Investigator Award, Endocrine Society (2017)
  • Young Investigator Award, International Society of Pediatric and Adolescent Diabetes (2017)
  • Clinical Research Award for Fellows, Society of Pediatric Research (2016)

Publications

  • Tommerdahl KL, Shapiro ALB, Nehus EJ, Bjornstad P. Early microvascular complications in type 1 and type 2 diabetes: recent developments and updates. Pediatr Nephrol. 2022 Jan;37(1):79-93. PubMed PMID: 33852054
  • Hesp AC, Smits MM, van Bommel EJM, Muskiet MHA, Tonneijck L, Nieuwdorp M, Kramer MHH, Joles JA, Bjornstad P, van Raalte DH. Kidney hemodynamic profile and systemic vascular function in adults with type 2 diabetes: Analysis of three clinical trials. J Diabetes Complications. 2022 Mar;36(3):108127. PubMed PMID: 35067449
  • Looker HC, Pyle L, Vigers T, Severn C, Saulnier PJ, Najafian B, Mauer M, Nelson RG, Bjornstad P. Structural Lesions on Kidney Biopsy in Youth-Onset and Adult-Onset Type 2 Diabetes. Diabetes Care. 2022 Feb 1;45(2):436-443. PubMed PMID: 35006272
  • Tommerdahl KL, Nelson RG, Bjornstad P. Dapagliflozin in young people with type 2 diabetes. Lancet Diabetes Endocrinol. 2022 Apr 1. [Epub ahead of print] PubMed PMID: 35378070
  • Johnson MJ, Tommerdahl KL, Vinovskis C, Waikar S, Reinicke T, Parikh CR, Obeid W, Nelson RG, van Raalte DH, Pyle L, Nadeau KJ, Bjornstad P. Relationship between biomarkers of tubular injury and intrarenal hemodynamic dysfunction in youth with type 1 diabetes. Pediatr Nephrol. 2022 Mar 14. [Epub ahead of print] PubMed PMID: 35286453
  • Suijk D, van Baar M, van Bommel E, Iqbal Z, Krebber M, Vallon V, Touw D, Hoorn E, Nieuwdorp M, Kramer M, Joles J, Bjornstad P, van Raalte D. SGLT2 Inhibition and Uric Acid Excretion in Patients with Type 2 Diabetes and Normal Kidney Function. Clin J Am Soc Nephrol. 2022 Mar 23. [Epub ahead of print] PubMed PMID: 35322793
  • Tommerdahl KL, Nadeau KJ, Bjornstad P. Mechanisms of Cardiorenal Protection of Glucagon-Like Peptide-1 Receptor Agonists. Adv Chronic Kidney Dis. 2021 Jul;28(4):337-346. PubMed PMID: 34922690
  • Bjornstad P, Drews K, Zeitler PS. Long-Term Complications in Youth-Onset Type 2 Diabetes. Reply. N Engl J Med. 2021 Nov 18;385(21):2016. PubMed PMID: 34788520
  • Cherney DZI, Bjornstad P, Perkins BA, Rosenstock J, Neubacher D, Marquard J, Soleymanlou N. Kidney Effects of Empagliflozin in People with Type 1 Diabetes. Clin J Am Soc Nephrol. 2021 Nov;16(11):1715-1719. PubMed PMID: 34535454
  • Bohling R, Grafals M, Moreau K, You Z, Tommerdahl KL, Bjornstad P, Stenson EK, Andrews E, Ramirez-Renteria L, Kendrick J. A Pilot Study of the Safety and Efficacy of Alkali Therapy on Vascular Function in Kidney Transplant Recipients. Kidney Int Rep. 2021 Sep;6(9):2323-2330. PubMed PMID: 34514193
  • Piani F, Melena I, Severn C, Chung LT, Vinovskis C, Cherney D, Pyle L, Roncal-Jimenez CA, Lanaspa MA, Rewers A, van Raalte DH, Obeid W, Parikh C, Nelson RG, Pavkov ME, Nadeau KJ, Johnson RJ, Bjornstad P. Tubular injury in diabetic ketoacidosis: Results from the diabetic kidney alarm study. Pediatr Diabetes. 2021 Nov;22(7):1031-1039. PubMed PMID: 34435718
  • Bjornstad P, Drews KL, Caprio S, Gubitosi-Klug R, Nathan DM, Tesfaldet B, Tryggestad J, White NH, Zeitler P. Long-Term Complications in Youth-Onset Type 2 Diabetes. N Engl J Med. 2021 Jul 29;385(5):416-426. PubMed PMID: 34320286
  • Bjornstad P, Greasley PJ, Wheeler DC, Chertow GM, Langkilde AM, Heerspink HJL, Van Raalte DH. The Potential Roles of Osmotic and Nonosmotic Sodium Handling in Mediating the Effects of Sodium-Glucose Cotransporter 2 Inhibitors on Heart Failure. J Card Fail. 2021 Dec;27(12):1447-1455. PubMed PMID: 34289398
  • Saulnier PJ, Looker HC, Mauer M, Najafian B, Gand E, Ragot S, Nelson RG, Bjornstad P. Intraglomerular Dysfunction Predicts Kidney Failure in Type 2 Diabetes. Diabetes. 2021 Oct;70(10):2344-2352. PubMed PMID: 34257069
  • Nakagawa T, Sanchez-Lozada LG, Andres-Hernando A, Kojima H, Kasahara M, Rodriguez-Iturbe B, Bjornstad P, Lanaspa MA, Johnson RJ. Endogenous Fructose Metabolism Could Explain the Warburg Effect and the Protection of SGLT2 Inhibitors in Chronic Kidney Disease. Front Immunol. 2021;12:694457. PubMed PMID: 34220855
  • Piani F, Reinicke T, Borghi C, Tommerdahl KL, Cara-Fuentes G, Johnson RJ, Bjornstad P. Acute Kidney Injury in Pediatric Diabetic Kidney Disease. Front Pediatr. 2021;9:668033. PubMed PMID: 34211943
  • van Velzen DM, Smits MM, van Bommel EJM, Muskiet MHA, Tonneijck L, Kramer MHH, Joles JA, den Heijer M, Nokoff N, Bjornstad P, van Raalte DH. Kidney hemodynamic function in men and postmenopausal women with type 2 diabetes and preserved kidney function. Am J Physiol Renal Physiol. 2021 Jun 1;320(6):F1152-F1158. PubMed PMID: 33900855
  • Melena I, Bjornstad P, Schäfer M, Hunter KS, Barker AJ, Baumgartner A, Chung L, Wiromrat P, Truong U, Reusch JEB, Nadeau KJ. Serum copeptin and NT-proBNP is associated with central aortic stiffness and flow hemodynamics in adolescents with type 1 diabetes: A pilot study. J Diabetes Complications. 2021 May;35(5):107883. PubMed PMID: 33712333
  • Ryder JR, Xu P, Nadeau KJ, Kelsey MM, Xie C, Jenkins T, Inge TH, Bjornstad P. Effect of surgical versus medical therapy on estimated cardiovascular event risk among adolescents with type 2 diabetes and severe obesity. Surg Obes Relat Dis. 2021 Jan;17(1):23-33. PubMed PMID: 33071178
  • Tommerdahl KL, Bjornstad P, Kendrick J, Cree-Green M, Baumgartner AD, Pyle L, Reusch JEB, Nadeau KJ. Results from the Effects of MEtformin on cardiovasculaR function in AdoLescents with type 1 Diabetes (EMERALD) study: A brief report of kidney and inflammatory outcomes. Diabetes Obes Metab. 2021 Mar;23(3):844-849. PubMed PMID: 33236509
  • Scholtes RA, van Baar MJB, Kok MD, Bjornstad P, Cherney DZI, Joles JA, van Raalte DH. Renal haemodynamic and protective effects of renoactive drugs in type 2 diabetes: Interaction with SGLT2 inhibitors. Nephrology (Carlton). 2021 May;26(5):377-390. PubMed PMID: 33283420
  • Piani F, Reinicke T, Lytvyn Y, Melena I, Lovblom LE, Lai V, Tse J, Cham L, Orszag A, Perkins BA, Cherney DZI, Bjornstad P. Vasopressin associated with renal vascular resistance in adults with longstanding type 1 diabetes with and without diabetic kidney disease. J Diabetes Complications. 2021 Mar;35(3):107807. PubMed PMID: 33288413
  • Andres-Hernando A, Jensen TJ, Kuwabara M, Orlicky DJ, Cicerchi C, Li N, Roncal-Jimenez CA, Garcia GE, Ishimoto T, Maclean PS, Bjornstad P, Sanchez-Lozada LG, Kanbay M, Nakagawa T, Johnson RJ, Lanaspa MA. Vasopressin mediates fructose-induced metabolic syndrome by activating the V1b receptor. JCI Insight. 2021 Jan 11;6(1). PubMed PMID: 33320834
  • Tommerdahl KL, Baumgartner K, Schäfer M, Bjornstad P, Melena I, Hegemann S, Baumgartner AD, Pyle L, Cree-Green M, Truong U, Browne L, Regensteiner JG, Reusch JEB, Nadeau KJ. Impact of Obesity on Measures of Cardiovascular and Kidney Health in Youth With Type 1 Diabetes as Compared With Youth With Type 2 Diabetes. Diabetes Care. 2021 Mar;44(3):795-803. PubMed PMID: 33402367
  • Piani F, Sasai F, Bjornstad P, Borghi C, Yoshimura A, Sanchez-Lozada LG, Roncal-Jimenez C, Garcia GE, Hernando AA, Fuentes GC, Rodriguez-Iturbe B, Lanaspa MA, Johnson RJ. Hyperuricemia and chronic kidney disease: to treat or not to treat. J Bras Nefrol. 2021 Oct-Dec;43(4):572-579. PubMed PMID: 33704350
  • Ambinathan JPN, Sridhar VS, Lytvyn Y, Lovblom LE, Liu H, Bjornstad P, Perkins BA, Lovshin JA, Cherney DZI. Relationships between inflammation, hemodynamic function and RAAS in longstanding type 1 diabetes and diabetic kidney disease. J Diabetes Complications. 2021 May;35(5):107880. PubMed PMID: 33678512
  • van Raalte DH, Bjornstad P, Heerspink HJL, Persson F, Cherney DZI. Importance of standardizing renal outcomes in clinical trials: illustration by recent sodium glucose cotransporter 2 inhibitor studies. Kidney Int. 2021 Mar;99(3):768-770. PubMed PMID: 33637205
  • Piani F, Melena I, Tommerdahl KL, Nokoff N, Nelson RG, Pavkov ME, van Raalte DH, Cherney DZ, Johnson RJ, Nadeau KJ, Bjornstad P. Sex-related differences in diabetic kidney disease: A review on the mechanisms and potential therapeutic implications. J Diabetes Complications. 2021 Apr;35(4):107841. PubMed PMID: 33423908
  • Piani F, Reinicke T, Lytvyn Y, Melena I, Lovblom LE, Lai V, Tse J, Cham L, Orszag A, Perkins BA, Cherney DZI, Bjornstad P. Vasopressin associated with renal vascular resistance in adults with longstanding type 1 diabetes with and without diabetic kidney disease. J Diabetes Complications. 2020 Nov 26;:107807. [Epub ahead of print] PubMed PMID: 33288413
  • Scholtes RA, van Baar MJB, Kok MD, Bjornstad P, Cherney DZI, Joles JA, van Raalte DH. Renal hemodynamic and protective effects of renoactive drugs in type 2 diabetes: interaction with SGLT2 inhibitors. Nephrology (Carlton). 2020 Dec 6. [Epub ahead of print] PubMed PMID: 33283420
  • Tommerdahl KL, Bjornstad P, Kendrick J, Cree-Green M, Baumgartner AD, Pyle L, Reusch JEB, Nadeau KJ. Results from the Effects of MEtformin on CardiovasculaR Function in AdoLescents with Type 1 Diabetes (EMERALD) Study: A Brief Report of Kidney and Inflammatory Outcomes. Diabetes Obes Metab. 2020 Nov 25. [Epub ahead of print] PubMed PMID: 33236509
  • Derderian SC, Patten L, Kaizer AM, Moore JM, Ogle S, Jenkins TM, Michalsky MP, Mitchell JE, Bjornstad P, Dixon JB, Inge TH. Influence of Weight Loss on Obesity-Associated Complications After Metabolic and Bariatric Surgery in Adolescents. Obesity (Silver Spring). 2020 Dec;28(12):2397-2404. PubMed PMID: 33230961
  • Seegmiller JC, Wolfe BJ, Albtoush N, Melena I, Gross SP, Vinovskis C, Ix JH, Bjornstad P. Tubular Secretion Markers, Glomerular Filtration Rate, Effective Renal Plasma Flow, and Filtration Fraction in Healthy Adolescents. Kidney Med. 2020 Sep-Oct;2(5):670-672. PubMed PMID: 33089146
  • Ryder JR, Xu P, Nadeau KJ, Kelsey MM, Xie C, Jenkins T, Inge TH, Bjornstad P. Effect of surgical versus medical therapy on estimated cardiovascular event risk among adolescents with type 2 diabetes and severe obesity. Surg Obes Relat Dis. 2020 Sep 9. [Epub ahead of print] PubMed PMID: 33071178
  • Hesp AC, Schaub JA, Prasad PV, Vallon V, Laverman GD, Bjornstad P, van Raalte DH. The role of renal hypoxia in the pathogenesis of diabetic kidney disease: a promising target for newer renoprotective agents including SGLT2 inhibitors?. Kidney Int. 2020 Sep;98(3):579-589. PubMed PMID: 32739206
  • Vinovskis C, Li LP, Prasad P, Tommerdahl K, Pyle L, Nelson RG, Pavkov ME, van Raalte D, Rewers M, Pragnell M, Mahmud FH, Cherney DZ, Johnson RJ, Nadeau KJ, Bjornstad P. Relative Hypoxia and Early Diabetic Kidney Disease in Type 1 Diabetes. Diabetes. 2020 Dec;69(12):2700-2708. PubMed PMID: 32737116
  • Schäfer M, Bjornstad P, Frank BS, Baumgartner A, Truong U, Enge D, von Alvensleben JC, Mitchell MB, Ivy DD, Barker AJ, Reusch JEB, Nadeau KJ. Frequency of Reduced Left Ventricular Contractile Efficiency and Discoordinated Myocardial Relaxation in Patients Aged 16 to 21 Years With Type 1 Diabetes Mellitus (from the Emerald Study). Am J Cardiol. 2020 Aug 1;128:45-53. PubMed PMID: 32650923
  • Phadke G, Kaushal A, Tolan DR, Hahn K, Jensen T, Bjornstad P, Roncal-Jimenez C, Hernando AA, Lanaspa MA, Alexander MP, Kukla A, Johnson RJ. Osmotic Nephrosis and Acute Kidney Injury Associated With SGLT2 Inhibitor Use: A Case Report. Am J Kidney Dis. 2020 Jul;76(1):144-147. PubMed PMID: 32387022
  • Mosterd CM, Bjornstad P, van Raalte DH. Nephroprotective effects of GLP-1 receptor agonists: where do we stand?. J Nephrol. 2020 Oct;33(5):965-975. PubMed PMID: 32356231
  • Bjornstad P, Nehus E, van Raalte D. Bariatric surgery and kidney disease outcomes in severely obese youth. Semin Pediatr Surg. 2020 Feb;29(1):150883. PubMed PMID: 32238288
  • Kuwabara M, Hisatome I, Niwa K, Bjornstad P, Roncal-Jimenez CA, Andres-Hernando A, Kanbay M, Johnson RJ, Lanaspa MA. The Optimal Range of Serum Uric Acid for Cardiometabolic Diseases: A 5-Year Japanese Cohort Study. J Clin Med. 2020 Mar 30;9(4). PubMed PMID: 32235468
  • Bjornstad P, Nehus E, Jenkins T, Mitsnefes M, Moxey-Mims M, Dixon JB, Inge TH. Five-year kidney outcomes of bariatric surgery differ in severely obese adolescents and adults with and without type 2 diabetes. Kidney Int. 2020 May;97(5):995-1005. PubMed PMID: 32229096
  • Sanchez-Lozada LG, Rodriguez-Iturbe B, Kelley EE, Nakagawa T, Madero M, Feig DI, Borghi C, Piani F, Cara-Fuentes G, Bjornstad P, Lanaspa MA, Johnson RJ. Uric Acid and Hypertension: An Update With Recommendations. Am J Hypertens. 2020 Jul 18;33(7):583-594. PubMed PMID: 32179896
  • van Raalte DH, Bjornstad P. Role of sodium-glucose cotransporter 2 inhibition to mitigate diabetic kidney disease risk in type 1 diabetes. Nephrol Dial Transplant. 2020 Jan 1;35(Suppl 1):i24-i32. PubMed PMID: 32003832
  • Bjornstad P, Nelson RG, Pavkov ME. Do sodium-glucose cotransporter-2 inhibitors affect renal hemodynamics by different mechanisms in type 1 and type 2 diabetes?. Kidney Int. 2020 Jan;97(1):31-33. PubMed PMID: 31901353
  • Joosten LAB, Crisan TO, Bjornstad P, Johnson RJ. Asymptomatic hyperuricaemia: a silent activator of the innate immune system. Nat Rev Rheumatol. 2020 Feb;16(2):75-86. PubMed PMID: 31822862
  • Lytvyn Y, Bjornstad P, Katz A, Singh SK, Godoy LC, Chung LT, Vinovskis CL, Pyle L, Roussel R, Perkins BA, Cherney D. SGLT2 inhibition increases serum copeptin in young adults with type 1 diabetes. Diabetes Metab. 2020 Jun;46(3):203-209. PubMed PMID: 31816431
  • Bjornstad P, Hughan K, Kelsey MM, Shah AS, Lynch J, Nehus E, Mitsnefes M, Jenkins T, Xu P, Xie C, Inge T, Nadeau K. Effect of Surgical Versus Medical Therapy on Diabetic Kidney Disease Over 5 Years in Severely Obese Adolescents With Type 2 Diabetes. Diabetes Care. 2020 Jan;43(1):187-195. PubMed PMID: 31685489
  • van Bommel EJM, Ruiter D, Muskiet MHA, van Baar MJB, Kramer MHH, Nieuwdorp M, Joles JA, Bjornstad P, van Raalte DH. Insulin Sensitivity and Renal Hemodynamic Function in Metformin-Treated Adults With Type 2 Diabetes and Preserved Renal Function. Diabetes Care. 2020 Jan;43(1):228-234. PubMed PMID: 31662305
  • Lytvyn Y, Bjornstad P, van Raalte DH, Heerspink HL, Cherney DZI. The New Biology of Diabetic Kidney Disease-Mechanisms and Therapeutic Implications. Endocr Rev. 2020 Apr 1;41(2). PubMed PMID: 31633153
  • Al-Ozairi E, Rivard CJ, Sanchez Lozada LG, Lanaspa MA, Bjornstad P, Al Salem D, Alhubail A, Megahed A, Kuwabara M, Johnson RJ, Asad RA. Fructose tolerance test in obese people with and without type 2 diabetes. J Diabetes. 2020 Mar;12(3):197-204. PubMed PMID: 31472036
  • Joosten LAB, Crisan TO, Bjornstad P, Johnson RJ. Asymptomatic hyperuricaemia: a silent activator of the innate immune system. Nat Rev Rheumatol. 2019 Dec 10. [Epub ahead of print] PubMed PMID: 31822862
  • Bjornstad P, Hughan K, Kelsey MM, Shah AS, Lynch J, Nehus E, Mitsnefes M, Jenkins T, Xu P, Xie C, Inge T, Nadeau K. Effect of Surgical Versus Medical Therapy on Diabetic Kidney Disease Over 5 Years in Severely Obese Adolescents With Type 2 Diabetes. Diabetes Care. 2019 Nov 4. [Epub ahead of print] PubMed PMID: 31685489
  • Srinivasan Sridhar V, Ambinathan JPN, Kretzler M, Pyle LL, Bjornstad P, Eddy S, Cherney DZ, Reich HN. Renal SGLT mRNA expression in human health and disease: a study in two cohorts. Am J Physiol Renal Physiol. 2019 Nov 1;317(5):F1224-F1230. PubMed PMID: 31545924
  • Potier L, Roussel R, Marre M, Bjornstad P, Cherney DZ, El Boustany R, Fumeron F, Venteclef N, Gautier JF, Hadjadj S, Mohammedi K, Velho G. Plasma Copeptin and Risk of Lower-Extremity Amputation in Type 1 and Type 2 Diabetes. Diabetes Care. 2019 Dec;42(12):2290-2297. PubMed PMID: 31582427
  • Vigers T, Chan CL, Snell-Bergeon J, Bjornstad P, Zeitler PS, Forlenza G, Pyle L. cgmanalysis: An R package for descriptive analysis of continuous glucose monitor data. PLoS One. 2019;14(10):e0216851. PubMed PMID: 31603912
  • Al-Ozairi E, Rivard CJ, Sanchez Lozada LG, Lanaspa MA, Bjornstad P, Al Salem D, Alhubail A, Megahed A, Kuwabara M, Johnson RJ, Asad RA. Fructose tolerance test in obese people with and without type 2 diabetes. J Diabetes. 2019 Aug 31. [Epub ahead of print] PubMed PMID: 31472036
  • van Raalte DH, Bjornstad P, Persson F, Powell DR, de Cassia Castro R, Wang PS, Liu M, Heerspink HJL, Cherney D. The Impact of Sotagliflozin on Renal Function, Albuminuria, Blood Pressure, and Hematocrit in Adults With Type 1 Diabetes. Diabetes Care. 2019 Oct;42(10):1921-1929. PubMed PMID: 31371432
  • Mansour SG, Martin TG, Obeid W, Pata RW, Myrick KM, Kukova L, Jia Y, Bjornstad P, El-Khoury JM, Parikh CR. The Role of Volume Regulation and Thermoregulation in AKI during Marathon Running. Clin J Am Soc Nephrol. 2019 Sep 6;14(9):1297-1305. PubMed PMID: 31413064
  • Scarr D, Bjornstad P, Lovblom LE, Lovshin JA, Boulet G, Lytvyn Y, Farooqi MA, Lai V, Orszag A, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Cherney DZI, Perkins BA. Estimating GFR by Serum Creatinine, Cystatin C, and ß2-Microglobulin in Older Adults: Results From the Canadian Study of Longevity in Type 1 Diabetes. Kidney Int Rep. 2019 Jun;4(6):786-796. PubMed PMID: 31194091
  • Bjornstad P, Lovshin JA, Lytvyn Y, Lovblom LE, Scarr D, Boulet G, Farooqi MA, Orszag A, Bai JW, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. Elevated plasma cyclic guanosine monophosphate may explain greater efferent arteriolar tone in adults with longstanding type 1 diabetes: A brief report. J Diabetes Complications. 2019 Aug;33(8):547-549. PubMed PMID: 31186164
  • Sekercioglu N, Lovblom LE, Bjornstad P, Lovshin JA, Lytvyn Y, Boulet G, Farooqi MA, Orszag A, Lai V, Tse J, Cham L, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. Risk factors for diabetic kidney disease in adults with longstanding type 1 diabetes: results from the Canadian Study of Longevity in Diabetes. Ren Fail. 2019 Nov;41(1):427-433. PubMed PMID: 31162987
  • Lovshin JA, Lytvyn Y, Lovblom LE, Katz A, Boulet G, Bjornstad P, Lai V, Cham L, Tse J, Orszag A, Keenan HA, Paul N, Bril V, Wong DT, McReelis KD, Brent MH, Perkins BA, Cherney DZI. Retinopathy and RAAS Activation: Results From the Canadian Study of Longevity in Type 1 Diabetes. Diabetes Care. 2019 Feb;42(2):273-280. PubMed PMID: 30523033
  • Lytvyn Y, Bjornstad P, Lovshin JA, Singh SK, Boulet G, Farooqi MA, Lai V, Tse J, Cham L, Lovblom LE, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Advani A, Sochett E, Perkins BA, Cherney DZI. Association between uric acid, renal haemodynamics and arterial stiffness over the natural history of type 1 diabetes. Diabetes Obes Metab. 2019 Jun;21(6):1388-1398. PubMed PMID: 30761725
  • Lytvyn Y, Bjornstad P, Lovshin JA, Boulet G, Farooqi MA, Lai V, Tse J, Cham L, Lovblom LE, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Advani A, Sochett E, Perkins BA, Cherney DZI. Renal Hemodynamic Function and RAAS Activation Over the Natural History of Type 1 Diabetes. Am J Kidney Dis. 2019 Jun;73(6):786-796. PubMed PMID: 30799029
  • Scholtes RA, van Baar MJB, Lytvyn Y, Bjornstad P, Nieuwdorp M, Cherney DZI, van Raalte DH. Sodium glucose cotransporter (SGLT)-2 inhibitors: Do we need them for glucose-lowering, for cardiorenal protection or both?. Diabetes Obes Metab. 2019 Apr;21 Suppl 2:24-33. PubMed PMID: 30843294
  • Bjornstad P, Laffel L, Lynch J, El Ghormli L, Weinstock RS, Tollefsen SE, Nadeau KJ. Elevated Serum Uric Acid Is Associated With Greater Risk for Hypertension and Diabetic Kidney Diseases in Obese Adolescents With Type 2 Diabetes: An Observational Analysis From the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) Study. Diabetes Care. 2019 Jun;42(6):1120-1128. PubMed PMID: 30967435
  • Bjornstad P, Wiromrat P, Johnson RJ, Sippl R, Cherney DZI, Wong R, Rewers MJ, Snell-Bergeon JK. Serum Uromodulin Predicts Less Coronary Artery Calcification and Diabetic Kidney Disease Over 12 Years in Adults With Type 1 Diabetes: The CACTI Study. Diabetes Care. 2019 Feb;42(2):297-302. PubMed PMID: 30482755
  • Bjornstad P, Singh SK, Snell-Bergeon JK, Lovshin JA, Lytvyn Y, Lovblom LE, Rewers MJ, Boulet G, Lai V, Tse J, Cham L, Orszag A, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. The relationships between markers of tubular injury and intrarenal haemodynamic function in adults with and without type 1 diabetes: Results from the Canadian Study of Longevity in Type 1 Diabetes. Diabetes Obes Metab. 2019 Mar;21(3):575-583. PubMed PMID: 30311395
  • Jensen T, Bjornstad P, Johnson RJ, Sippl R, Rewers M, Snell-Bergeon JK. Copeptin and Estimated Insulin Sensitivity in Adults With and Without Type 1 Diabetes: The CACTI Study. Can J Diabetes. 2019 Feb;43(1):34-39. PubMed PMID: 30026043
  • Wiromrat P, Bjornstad P, Roncal C, Pyle L, Johnson RJ, Cherney DZ, Lipina T, Bishop F, Maahs DM, Wadwa RP. Serum uromodulin is associated with urinary albumin excretion in adolescents with type 1 diabetes. J Diabetes Complications. 2019 Sep;33(9):648-650. PubMed PMID: 31253490
  • Wiromrat P, Bjornstad P, Roncal C, Cree-Green M, Baumgartner A, Coe G, Reyes YG, Schäfer M, Truong U, Pyle L, Johnson RJ, Nadeau KJ. Serum uromodulin inversely associates with aortic stiffness in youth with type 1 diabetes: A brief report from EMERALD study. J Diabetes Complications. 2019 Jun;33(6):434-436. PubMed PMID: 31003921
  • Wiromrat P, Bjornstad P, Vinovskis C, Chung LT, Roncal C, Pyle L, Lanaspa MA, Johnson RJ, Cherney DZ, Reznick-Lipina TK, Bishop F, Maahs DM, Wadwa RP. Elevated copeptin, arterial stiffness, and elevated albumin excretion in adolescents with type 1 diabetes. Pediatr Diabetes. 2019 Dec;20(8):1110-1117. PubMed PMID: 31433534
  • Bjornstad P, Eckel RH. Pathogenesis of Lipid Disorders in Insulin Resistance: a Brief Review. Curr Diab Rep. 2018 Oct 17;18(12):127. PubMed PMID: 30328521
  • Bjornstad P, Singh SK, Snell-Bergeon JK, Lovshin JA, Lytvyn Y, Lovblom LE, Rewers MJ, Boulet G, Lai V, Tse J, Cham L, Orszag A, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. The relationships between markers of tubular injury and intrarenal haemodynamic function in adults with and without type 1 diabetes: Results from the Canadian Study of Longevity in Type 1 Diabetes. Diabetes Obes Metab. 2018 Oct 12. [Epub ahead of print] PubMed PMID: 30311395
  • Lovshin JA, Bjornstad P, Lovblom LE, Bai JW, Lytvyn Y, Boulet G, Farooqi MA, Santiago S, Orszag A, Scarr D, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. Atherosclerosis and Microvascular Complications: Results From the Canadian Study of Longevity in Type 1 Diabetes. Diabetes Care. 2018 Dec;41(12):2570-2578. PubMed PMID: 30275283
  • León Jiménez D, Cherney DZI, Bjornstad P, Castilla Guerra L, Miramontes González JP. Antihyperglycemic Agents as Novel Natriuretic Therapies in Diabetic Kidney Disease. Am J Physiol Renal Physiol. 2018 Aug 1. [Epub ahead of print] PubMed PMID: 30066584
  • Jensen T, Bjornstad P, Johnson RJ, Sippl R, Rewers M, Snell-Bergeon JK. Copeptin and Estimated Insulin Sensitivity in Adults With and Without Type 1 Diabetes: The CACTI Study. Can J Diabetes. 2018 Mar 14. [Epub ahead of print] PubMed PMID: 30026043
  • Bjornstad P, Laffel L, Tamborlane WV, Simons G, Hantel S, von Eynatten M, George J, Marquard J, Cherney DZI. Acute Effect of Empagliflozin on Fractional Excretion of Sodium and eGFR in Youth With Type 2 Diabetes. Diabetes Care. 2018 Aug;41(8):e129-e130. PubMed PMID: 29941496
  • Kuwabara M, Hisatome I, Roncal-Jimenez CA, Niwa K, Andres-Hernando A, Jensen T, Bjornstad P, Milagres T, Cicerchi C, Song Z, Garcia G, Sánchez-Lozada LG, Ohno M, Lanaspa MA, Johnson RJ. Correction: Increased Serum Sodium and Serum Osmolarity Are Independent Risk Factors for Developing Chronic Kidney Disease; 5 Year Cohort Study. PLoS One. 2018;13(5):e0197941. PubMed PMID: 29772014
  • Lytvyn Y, Bjornstad P, Udell JA, Lovshin JA, Cherney DZI. Response by Lytvyn et al to Letter Regarding Article, "Sodium Glucose Cotransporter-2 Inhibition in Heart Failure: Potential Mechanisms, Clinical Applications, and Summary of Clinical Trials". Circulation. 2018 May 1;137(18):1984-1985. PubMed PMID: 29712705
  • Roncal-Jimenez CA, Sato Y, Milagres T, Andres Hernando A, García G, Bjornstad P, Dawson JB, Sorensen C, Newman L, Krisher L, Madero M, Glaser J, Gárcía-Trabanino R, Romero EJ, Song Z, Jensen T, Kuwabara M, Rodriguez-Iturbe B, Sanchez-Lozada LG, Lanaspa MA, Johnson RJ. Experimental heat stress nephropathy and liver injury are improved by allopurinol. Am J Physiol Renal Physiol. 2018 Sep 1;315(3):F726-F733. PubMed PMID: 29667911
  • Bjornstad P, Cherney DZ. Renal Hyperfiltration in Adolescents with Type 2 Diabetes: Physiology, Sex Differences, and Implications for Diabetic Kidney Disease. Curr Diab Rep. 2018 Mar 19;18(5):22. PubMed PMID: 29557063
  • Bjornstad P, Karger AB, Maahs DM. Measured GFR in Routine Clinical Practice-The Promise of Dried Blood Spots. Adv Chronic Kidney Dis. 2018 Jan;25(1):76-83. PubMed PMID: 29499891
  • Bjornstad P, Maahs DM, Roncal CA, Snell-Bergeon JK, Shah VN, Milagres T, Ellis SL, Hatch M, Chung LT, Rewers MJ, Garg S, Cherney DZ, Pyle L, Nadeau KJ, Johnson RJ. Role of bicarbonate supplementation on urine uric acid crystals and diabetic tubulopathy in adults with type 1 diabetes. Diabetes Obes Metab. 2018 Jul;20(7):1776-1780. PubMed PMID: 29498467
  • Bjornstad P, Donaghue KC, Maahs DM. Macrovascular disease and risk factors in youth with type 1 diabetes: time to be more attentive to treatment?. Lancet Diabetes Endocrinol. 2018 Oct;6(10):809-820. PubMed PMID: 29475800
  • Bjornstad P, Lovshin JA, Lytvyn Y, Boulet G, Lovblom LE, Alhuzaim ON, Farooqi MA, Lai V, Tse J, Cham L, Orszag A, Scarr D, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZI. Adiposity Impacts Intrarenal Hemodynamic Function in Adults With Long-standing Type 1 Diabetes With and Without Diabetic Nephropathy: Results From the Canadian Study of Longevity in Type 1 Diabetes. Diabetes Care. 2018 Apr;41(4):831-839. PubMed PMID: 29437821
  • Lovshin JA, Škrtic M, Bjornstad P, Moineddin R, Daneman D, Dunger D, Reich HN, Mahmud F, Scholey J, Cherney DZI, Sochett E. Hyperfiltration, urinary albumin excretion, and ambulatory blood pressure in adolescents with Type 1 diabetes mellitus. Am J Physiol Renal Physiol. 2018 Apr 1;314(4):F667-F674. PubMed PMID: 29357443
  • Tonneijck L, Muskiet MHA, Smits MM, Bjornstad P, Kramer MHH, Diamant M, Hoorn EJ, Joles JA, van Raalte DH. Effect of immediate and prolonged GLP-1 receptor agonist administration on uric acid and kidney clearance: Post-hoc analyses of four clinical trials. Diabetes Obes Metab. 2018 May;20(5):1235-1245. PubMed PMID: 29341461
  • Lovshin JA, Boulet G, Lytvyn Y, Lovblom LE, Bjornstad P, Farooqi MA, Lai V, Cham L, Tse J, Orszag A, Scarr D, Weisman A, Keenan HA, Brent MH, Paul N, Bril V, Perkins BA, Cherney DZ. Renin-angiotensin-aldosterone system activation in long-standing type 1 diabetes. JCI Insight. 2018 Jan 11;3(1). [Epub ahead of print] PubMed PMID: 29321380
  • Gidding SS, Bacha F, Bjornstad P, Levitt Katz LE, Levitsky LL, Lynch J, Tryggestad JB, Weinstock RS, El Ghormli L, Lima JAC. Cardiac Biomarkers in Youth with Type 2 Diabetes Mellitus: Results from the TODAY Study. J Pediatr. 2018 Jan;192:86-92.e5. PubMed PMID: 29246363
  • Bjornstad P, Nehus E, El Ghormli L, Bacha F, Libman IM, McKay S, Willi SM, Laffel L, Arslanian S, Nadeau KJ. Insulin Sensitivity and Diabetic Kidney Disease in Children and Adolescents With Type 2 Diabetes: An Observational Analysis of Data From the TODAY Clinical Trial. Am J Kidney Dis. 2018 Jan;71(1):65-74. PubMed PMID: 29157731
  • Bjornstad P, Cree-Green M, Baumgartner A, Coe G, Reyes YG, Schäfer M, Pyle L, Regensteiner JG, Reusch JE, Nadeau KJ. Achieving ADA/ISPAD clinical guideline goals is associated with higher insulin sensitivity and cardiopulmonary fitness in adolescents with type 1 diabetes: Results from RESistance to InSulin in Type 1 ANd Type 2 diabetes (RESISTANT) and Effects of MEtformin on CardiovasculaR Function in AdoLescents with Type 1 Diabetes (EMERALD) Studies. Pediatr Diabetes. 2018 May;19(3):436-442. PubMed PMID: 29082640
  • Rajasekeran H, Reich HN, Hladunewich MA, Cattran D, Lovshin JA, Lytvyn Y, Bjornstad P, Lai V, Tse J, Cham L, Majumder S, Bowskill BB, Kabir MG, Advani SL, Gibson IW, Sood MM, Advani A, Cherney DZI. Dapagliflozin in focal segmental glomerulosclerosis: a combined human-rodent pilot study. Am J Physiol Renal Physiol. 2018 Mar 1;314(3):F412-F422. PubMed PMID: 29141939
  • Bjornstad P, Pyle L, Cherney DZI, Johnson RJ, Sippl R, Wong R, Rewers M, Snell-Bergeon JK. Plasma biomarkers improve prediction of diabetic kidney disease in adults with type 1 diabetes over a 12-year follow-up: CACTI study. Nephrol Dial Transplant. 2018 Jul 1;33(7):1189-1196. PubMed PMID: 28992280
  • Kuwabara M, Hisatome I, Niwa K, Hara S, Roncal-Jimenez CA, Bjornstad P, Nakagawa T, Andres-Hernando A, Sato Y, Jensen T, Garcia G, Rodriguez-Iturbe B, Ohno M, Lanaspa MA, Johnson RJ. Uric Acid Is a Strong Risk Marker for Developing Hypertension From Prehypertension: A 5-Year Japanese Cohort Study. Hypertension. 2018 Jan;71(1):78-86. PubMed PMID: 29203632
  • Bjornstad P, Schäfer M, Truong U, Cree-Green M, Pyle L, Baumgartner A, Garcia Reyes Y, Maniatis A, Nayak S, Wadwa RP, Browne LP, Reusch JEB, Nadeau KJ. Metformin Improves Insulin Sensitivity and Vascular Health in Youth With Type 1 Diabetes Mellitus. Circulation. 2018 Dec 18;138(25):2895-2907. PubMed PMID: 30566007
  • Lytvyn Y, Bjornstad P, Udell JA, Lovshin JA, Cherney DZI. Sodium Glucose Cotransporter-2 Inhibition in Heart Failure: Potential Mechanisms, Clinical Applications, and Summary of Clinical Trials. Circulation. 2017 Oct 24;136(17):1643-1658. PubMed PMID: 29061576
  • Kuwabara M, Kuwabara R, Hisatome I, Niwa K, Roncal-Jimenez CA, Bjornstad P, Andres-Hernando A, Sato Y, Jensen T, Garcia G, Ohno M, Hill JO, Lanaspa MA, Johnson RJ. "Metabolically Healthy" Obesity and Hyperuricemia Increase Risk for Hypertension and Diabetes: 5-year Japanese Cohort Study. Obesity (Silver Spring). 2017 Nov;25(11):1997-2008. PubMed PMID: 28922565
  • Bjornstad P, Costacou T, Miller RG, Maahs DM, Rewers MJ, Orchard TJ, Snell-Bergeon JK. Predictors of early renal function decline in adults with Type 1 diabetes: the Coronary Artery Calcification in Type 1 Diabetes and the Pittsburgh Epidemiology of Diabetes Complications studies. Diabet Med. 2017 Nov;34(11):1532-1540. PubMed PMID: 28734104
  • Bjornstad P, Cree-Green M, Baumgartner A, Coe G, Reyes YG, Schafer M, Pyle L, Regensteiner JG, Reusch JEB, Nadeau KJ. Leptin is associated with cardiopulmonary fitness independent of body-mass index and insulin sensitivity in adolescents with type 1 diabetes: a brief report from the EMERALD study. J Diabetes Complications. 2017 May;31(5):850-853. PubMed PMID: 28336216
  • Roncal-Jimenez CA, Milagres T, Andres-Hernando A, Kuwabara M, Jensen T, Song Z, Bjornstad P, Garcia GE, Sato Y, Sanchez-Lozada LG, Lanaspa MA, Johnson RJ. Effects of exogenous desmopressin on a model of heat stress nephropathy in mice. Am J Physiol Renal Physiol. 2017 Mar 1;312(3):F418-F426. PubMed PMID: 28003190
  • Bjornstad P, Cherney DZI. Kidney Function Can Predict Pregnancy Outcomes. Clin J Am Soc Nephrol. 2017 Jul 7;12(7):1029-1031. PubMed PMID: 28611077
  • Bjornstad P, Johnson RJ, Snell-Bergeon JK, Pyle L, Davis A, Foster N, Cherney DZ, Maahs DM. Albuminuria is associated with greater copeptin concentrations in men with type 1 diabetes: A brief report from the T1D exchange Biobank. J Diabetes Complications. 2017 Feb;31(2):387-389. PubMed PMID: 27979439
  • Bjornstad P, Pyle L, Kinney GL, Rewers M, Johnson RJ, Maahs DM, Snell-Bergeon JK. Adiponectin is associated with early diabetic kidney disease in adults with type 1 diabetes: A Coronary Artery Calcification in Type 1 Diabetes (CACTI) Study. J Diabetes Complications. 2017 Feb;31(2):369-374. PubMed PMID: 27368123
  • Škrtic M, Lytvyn Y, Bjornstad P, Reich HN, Scholey JW, Yip P, Sochett EB, Perkins B, Cherney DZ. Influence of sex on hyperfiltration in patients with uncomplicated type 1 diabetes. Am J Physiol Renal Physiol. 2017 Apr 1;312(4):F599-F606. PubMed PMID: 28031170
  • Kuwabara M, Hisatome I, Roncal-Jimenez CA, Niwa K, Andres-Hernando A, Jensen T, Bjornstad P, Milagres T, Cicerchi C, Song Z, Garcia G, Sánchez-Lozada LG, Ohno M, Lanaspa MA, Johnson RJ. Increased Serum Sodium and Serum Osmolarity Are Independent Risk Factors for Developing Chronic Kidney Disease; 5 Year Cohort Study. PLoS One. 2017;12(1):e0169137. PubMed PMID: 28081152
  • Kuwabara M, Bjornstad P, Hisatome I, Niwa K, Roncal-Jimenez CA, Andres-Hernando A, Jensen T, Milagres T, Sato Y, Garcia G, Ohno M, Lanaspa MA, Johnson RJ. Elevated Serum Uric Acid Level Predicts Rapid Decline in Kidney Function. Am J Nephrol. 2017;45(4):330-337. PubMed PMID: 28285309
  • Kuwabara M, Niwa K, Hisatome I, Nakagawa T, Roncal-Jimenez CA, Andres-Hernando A, Bjornstad P, Jensen T, Sato Y, Milagres T, Garcia G, Ohno M, Lanaspa MA, Johnson RJ. Asymptomatic Hyperuricemia Without Comorbidities Predicts Cardiometabolic Diseases: Five-Year Japanese Cohort Study. Hypertension. 2017 Jun;69(6):1036-1044. PubMed PMID: 28396536
  • Bjornstad P, Truong U, Pyle L, Dorosz JL, Cree-Green M, Baumgartner A, Coe G, Regensteiner JG, Reusch JE, Nadeau KJ. Youth with type 1 diabetes have worse strain and less pronounced sex differences in early echocardiographic markers of diabetic cardiomyopathy compared to their normoglycemic peers: A RESistance to InSulin in Type 1 ANd Type 2 diabetes (RESISTANT) Study. J Diabetes Complications. 2016 Aug;30(6):1103-10. PubMed PMID: 27133451
  • Bjornstad P, Maahs DM, Jensen T, Lanaspa MA, Johnson RJ, Rewers M, Snell-Bergeon JK. Elevated copeptin is associated with atherosclerosis and diabetic kidney disease in adults with type 1 diabetes. J Diabetes Complications. 2016 Aug;30(6):1093-6. PubMed PMID: 27141815
  • Shah P, Bjornstad P, Johnson RJ. Hyperuricemia as a potential risk factor for type 2 diabetes and diabetic nephropathy. J Bras Nefrol. 2016 Dec;38(4):386-387. PubMed PMID: 28001176
  • Lytvyn Y, Bjornstad P, Pun N, Cherney DZ. New and old agents in the management of diabetic nephropathy. Curr Opin Nephrol Hypertens. 2016 May;25(3):232-9. PubMed PMID: 26890303
  • Bjornstad P, Maahs DM, Duca LM, Pyle L, Rewers M, Johnson RJ, Snell-Bergeon JK. Estimated insulin sensitivity predicts incident micro- and macrovascular complications in adults with type 1 diabetes over 6 years: the coronary artery calcification in type 1 diabetes study. J Diabetes Complications. 2016 May-Jun;30(4):586-90. PubMed PMID: 26936306
  • Bjornstad P, Škrtic M, Lytvyn Y, Maahs DM, Johnson RJ, Cherney DZ. The Gomez' equations and renal hemodynamic function in kidney disease research. Am J Physiol Renal Physiol. 2016 Nov;311(5):F967-F975. PubMed PMID: 27605583
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Professional Memberships

  • American Diabetes Association, Professional Member
  • International Society of Pediatric and Adolescent Diabetes, Professional Member
  • American Society of Nephrology, Professional Member
  • National Kidney Foundation, Professional Member
  • European Diabetic Nephropathy Study Group, Professional Member
  • American Physiological Society, Regular Member

Practice Locations

Children's Hospital Colorado Anschutz Medical Campus
13123 East 16th Ave
Aurora, CO 80045
720-777-1234

Specialty Information

Specialties
  • Pediatric Endocrinology
Public Speaking
Yes

General Information

Residency Programs:
  • University of Colorado (Children's Hospital Colorado) Program, Pediatrics (2015)
Fellowships:
  • University of Colorado (Children's Hospital Colorado) Program, Pediatric Endocrinology (2018)
Languages: English, Norwegian
Department: Pediatrics-Endocrinology
Contact Us
CU Anschutz
Fitzsimons Building

13001 East 17th Place
Campus Box C290
Aurora, CO 80045

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