Ph.D., University of Bonn, Nutritional Sciences, 2001.
M.S., University of Bonn, Nutritional Sciences, 1996.
Dr. Kratz’s research focuses on the relationship between diet, obesity, and chronic diseases such as type 2 diabetes, cardiovascular disease, and cancers associated with obesity. Current projects include controlled dietary intervention studies in humans to better understand how diet composition affects energy and glucose homeostasis, or major determinants of glucose homeostasis including insulin sensitivity, pancreatic beta-cell function, liver fat content, and low-grade chronic inflammation. We are also conducting translational studies to improve our understanding of the etiology of low-grade chronic adipose tissue inflammation, and its relationship to adiposity and insulin resistance.
(Reading, Writing, Speaking)
English: (Fluent, Fluent, Fluent)
German: (Fluent, Fluent, Fluent)
American Diabetes Association
American Society for Nutrition
2007-2013, Assistant Member, Fred Hutchinson Cancer Research Center, Public Health Sciences Division, Cancer Prevention Program
2008-2013, Research Assistant Professor, University of Washington, School of Public Health, Epidemiology
2003-2007, Post-doctoral fellow, University of Washington, Medicine, Metabolism, Endocrinology & Nutrition
2001-2003, Post-doctoral fellow, Leibnitz-Institute of Arteriosclerosis Research
1997-2001, Ph.D. student, Leibnitz-Institute of Arteriosclerosis Research, Muenster, Germany
Metabolic dysfunction drives a mechanistically distinct proinflammatory phenotype in adipose tissue macrophages.. Cell metabolism. 20(4):614-25.. 2014.
Cruciferous vegetables have variable effects on biomarkers of systemic inflammation in a randomized controlled trial in healthy young adults.. The Journal of nutrition. 144(11):1850-7.. 2014.
Inflammation and oxidative stress markers and esophageal adenocarcinoma incidence in a Barrett's esophagus cohort.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 23(11):2393-403.. 2014.
Intraindividual variability over time in plasma biomarkers of inflammation and effects of long-term storage.. Cancer causes & control : CCC.. 2014.
Dairy fat intake is associated with glucose tolerance, hepatic and systemic insulin sensitivity, and liver fat but not β-cell function in humans.. The American journal of clinical nutrition.. 2014.
Comparison and validation of 2 analytical methods for measurement of urinary sucrose and fructose excretion.. Nutrition research (New York, N.Y.). 33(9):696-703.. 2013.
Effects of a high-protein diet on regulation of phosphorus homeostasis.. The Journal of clinical endocrinology and metabolism. 98(3):1207-13.. 2013.
Gene Expression Changes in Adipose Tissue with Diet- and/or Exercise-Induced Weight Loss.. Cancer prevention research (Philadelphia, Pa.). 6(3):217-31.. 2013.
The relationship between high-fat dairy consumption and obesity, cardiovascular, and metabolic disease.. European journal of nutrition. 52(1):1-24.. 2013.
n3 PUFAs Do Not Affect Adipose Tissue Inflammation in Overweight to Moderately Obese Men and Women.. The Journal of nutrition. 143(8):1340-7.. 2013.
Lifestyle factors and inflammation: associations by body mass index.. PloS one. 8(7):e67833.. 2013.
Characterizing and quantifying leukocyte populations in human adipose tissue: Impact of enzymatic tissue processing.. Journal of immunological methods. 386(1-2):50-9.. 2012.
Reliability of Serum Biomarkers of Inflammation from Repeated Measures in Healthy Individuals.. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 21(7):1167-70.. 2012.
Changes in adipose-derived inflammatory cytokines and chemokines after successful lifestyle intervention in obese children.. Metabolism: clinical and experimental. 60(4):445-52.. 2011.
Vitamin d deficiency in obese children and its relationship to insulin resistance and adipokines.. Journal of obesity. 2011:495101.. 2011.
Increased risk of orofacial clefts associated with maternal obesity: case-control study and Monte Carlo-based bias analysis.. Paediatric and perinatal epidemiology. 24(5):502-12.. 2010.
Biomarkers of systemic inflammation and risk of incident, symptomatic benign prostatic hyperplasia: results from the prostate cancer prevention trial.. American journal of epidemiology. 171(5):571-82.. 2010.
Exchanging carbohydrate or protein for fat improves lipid-related cardiovascular risk profile in overweight men and women when consumed ad libitum.. Journal of investigative medicine : the official publication of the American Federation for Clinical Research. 58(5):711-9.. 2010.
Emerging role of estrogen in the control of cardiometabolic disease.. Trends in pharmacological sciences. 31(4):183-9.. 2010.
Hypercaloric diets differing in fat composition have similar effects on serum leptin and weight gain in female subjects with anorexia nervosa.. Nutrition research (New York, N.Y.). 29(1):1-7.. 2009.