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Euro Weight Loss-2015 Frankfurt , Germany August 1 8 – 2 0 , 2015

This research delves into the complexities of weight loss outcomes, considering BMI, fat distribution, and impact on metabolic health. It discusses how visceral obesity affects health risks and postoperative complications in colon cancer patients. The study highlights the significance of measuring metrics beyond BMI to monitor overall health effectively.

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Euro Weight Loss-2015 Frankfurt , Germany August 1 8 – 2 0 , 2015

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  1. Euro Weight Loss-2015Frankfurt, GermanyAugust 18– 20, 2015 A.P.J. Houdijk

  2. Weight loss what is the best outcome measure ? A.P.J. Houdijk MD PhD Medical Center Alkmaar Free University Hospital Amsterdam

  3. The worldwide weight problem

  4. Overweight worldwide WHO facts • Overweight and obesity: abnormal or excessive fat accumulation that may impair health. • Overweight expressed as BMI ≥ 25; Obese ≥ 30 kg/m2 • 1.9 billion overweight,13 % of world population • 600 million obese • Doubled since 1980 • 35 years of lifestyle (non) change how is this possible ?

  5. Weight component of BMI • Weight = fat + lean body mass (LBM) + water • Fat = subcutaneous + intraabdominal + intracellular • LBM = organs +bone + muscle • BMI = LBM + subcut. fat + intraabd. fat + water per M2 • Waist circumf. = organs + subcut fat + intraabd fat + air

  6. Weight loss • Water dehydration • LBM; bone, muscle, organs protein wasting • Fat; subcut fat, intraabd fat wasting or health benefit • BMI reduction measures more than loss of metabolic risky fat • BMI as a sole measure of health monitoring is questionable But there may be hope for another role for BMI

  7. Body fat depots Total adipose tissue subcutaneous peripheral abdominal Internal Abdominal (visceral) intra/inter muscular Pericardial Hepatic Pancreatic

  8. Overweight related metabolic disease visceral obesity is the motor

  9. Visceral obesity induces inflammation and insulin resistance

  10. Loss of visceral fat reverses inflammation and insulin resistance i Kovácˇiková, M. et al. Dietary intervention-induced weight loss decreases macrophage content in adipose tissue of obese women. Int. J. Obes. 2011

  11. Surrogate marker waist circumference cardiovascular events The HOPE study Men Women Tertile 1 <95 <87 Waistcircumference (cm): Tertile 2 95–103 87–98 Tertile 3 >103 >98 1.4 1.35 1.29 1.27 1.17 1.2 1.16 1.14 Adjusted relative risk 1 1 1 1 0.8 CVD death MI All-cause deaths Adjusted for BMI, age, smoking, sex, CVD disease, DM, HDL-cholesterol, total-C; CVD: cardiovascular disease; MI: myocardial infarction; BMI: body mass index; DM: diabetes mellitus; HDL: high-density lipoprotein cholesterol Dagenais GR et al, 2005

  12. Visceral fat and waist circumference ? waist circumference = 84 cm Courtesy: Prof J. Bell University of Westminster IAAT= 1.31 l IAAT= 4.2 l IAAT= 0.53 l IAAT= 1.11 l IAAT= 1.15 l IAAT= 4.26 l

  13. Visceral fat and waist circumference ? waist circumference = 84 cm Courtesy: Prof J. Bell University of Westminster IAAT= 1.31 l IAAT= 4.2 l IAAT= 0.53 l IAAT= 1.11 l IAAT= 1.15 l IAAT= 4.26 l

  14. Courtesy: Prof J. Bell University of Westminster TAT = 13.2 L, IAAT = 1.07 TAT = 12.4 L, IAAT = 0.63 L TAT = 14.3 L, IAAT= 1.2 L TAT = 17.3 L, IAAT = 1.8 L TAT = 21.4 L, IAAT = 2.9 L TAT = 16.8 L, IAAT = 2.2 L TAT = 26.2 L, IAAT = 3.6 L TAT = 21.8 L, IAAT = 3.56 L TAT = 24.1 L, IAAT = 3.7 L Visceral fat and BMI ? Umbilical images from subjects with BMI 24 kg/m2

  15. Courtesy: Prof J. Bell University of Westminster TAT = 13.2 L, IAAT = 1.07 TAT = 12.4 L,IAAT = 0.63 L TAT = 14.3 L, IAAT= 1.2 L TAT = 16.8 L, IAAT = 2.2 L TAT = 17.3 L, IAAT = 1.8 L TAT = 21.4 L, IAAT = 2.9 L TAT = 26.2 L,IAAT = 3.6 L TAT = 21.8 L, IAAT = 3.56 L TAT = 24.1 L, IAAT = 3.7 L Visceral fat and BMI ? Umbilical images from subjects with BMI 24 kg/m2

  16. Ct scan image for visceral fat Visceral fat area (cm2) at L3 – L4 level Threshold for metabolic disease = 100 cm2

  17. Visceral obesity and BMI in colon cancer 46 % 83 % Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  18. Visceral obesity and BMI in colon cancer CVD, hypertension and diabetes Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  19. Visceral obesity and BMI in colon cancer CVD, hypertension and diabetes Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  20. Visceral obesity and BMI in colon cancer Postoperative complications Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  21. Visceral obesity and BMI in colon cancer Postoperative complications Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  22. Visceral obesity, BMI and complications 29 % 38 % 17 % 14 % Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  23. Visceral obesity – BMI phenotypes Slim unfit Fat unfit Slim fit Fat fit Cakir et al. Visceral obesity, BMI and risk of complications after colon cancer resection: a retrospective cohort study. Surgery 2015

  24. Fit versus unfit phenotypes Fat fit Slim fit Slim unfit Fat unfit O'Donovan et al

  25. Visceral obesity in relation to BMI A new marker for risk phenotyping ? • Visceral fat in oncological patients CT MRI • Visceral fat measurement in the general population • DEXA

  26. Summary and conclusions • Visceral fat measurement in relation to BMI identifies risk phenotypes for metabolic syndrome and postoperative complications • Visceral obesity in BMI < 25 higher risk of complications than in BMI> 25 kg/m2 ?? • A larger study n=3500 colon cancer patients is including • BMI has a new role • Visceral fat and BMI risk phenotypes may focus lifestyle programs to the highest risk phenotypes

  27. Summary and conclusions • Stop weighing people measure visceral fat and BMI • Further research needed on the effects of lifestyle programs in the different phenotypes • Thank you

  28. Questions

  29. Fat-Fit: Sumo Wrestling • Sumo wrestlers bulk (>20,000 kcal/day) (as the heavier the fighter, the lower his centre of gravity) • Yokozuna have large BMI: • - Taiho: 43.8 • Konishki: 58.2 • Akibono: 56.8 • Elevated % body fat, but low insulin resistance: • low TG • low T-chol and LDL-chol • low Fasting glucose

  30. Meet the eminent gathering once again atEuro Weight Loss-2016Vienna, AustriaSeptember 19-20, 2016 Euro Weight Loss – 2016 Website: http://weightloss.global-summit.com/europe/

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