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Page 1: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

Incorporating different food products and composite meals in the Eindhoven Diabetes Education Simulator (E-DES)

Anne Maas, MSc ([email protected])

Researcher at Máxima Medical Center, Eindhoven

Page 2: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

The problem…

???

Page 3: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

Eindhoven Diabetes Educational Simulator (E-DES)

Objective:Practice safely, independently at home!

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Page 4: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

Simplified physiological model

• Gut, plasma and remote compartments

• In- and outflow of glucose and insulin

Page 5: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

In equations

Glucose in gut

Glucose in plasma

Insulin in plasma

Insulin in remote compartment

gut2

pl

meal1

11

meal

gutplmealmealgut

))(exp(

,d

d

GG

G

GGGG

Mkm

Dtktkm

MmtDmt

M

plpl

plplplpl1ren

pl

plrem

5it

pl

pl

pl

plliv

0itnon

gut

b2pl

bgut

rem4

plpl3

livliv

plrenremplitplitnongutgutrempllivpl

,0

,

,,d

d

th

ththbG

M

Mb

bM

GG

GG

bb

G

GGif

GGifGGMν

c

g

GK

GIkg

GK

G

G

GKgg

MMν

fkm

fg

IkGGkgg

GgIGgGgMgIGgt

G

plpl12

rem

pl11

liv

la5.0

la2

5.0b

15.0la

sc29

sc12

sc2

sc110

sasc1

sc2b

9sa

pl

d8plpl

i

7plpl6

1pnc

plrempllivlalasc2sc1saplpncpl

d

d

d

d

d

dd

,,d

d

b

hhI

hh

III

II

II

bb

II

IIki

Iki

baUt

UttMv

tthi

UkUct

U

Ukut

U

UMv

ki

t

GktGG

kGGki

IiIitUiUUiGit

I

rem13

it

plpl12

rempl

remitplplrem

d

d

Iki

IIkii

IiIit

I

b

Page 6: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

Model calculates glucose and insulin

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Fit model on data

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Fit model on data

time

con

cen

trati

on

magnitudeerror

peak (simulation)

peak (data)

data

original model

error

optimal model

Page 9: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

Predicting OGTT data for healthy people

Plasma glucose Plasma insulin

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From clinical to home setting: food inclusion

• Hypothesis: capture differences in dynamic profile by adjusting mathematical model

Graph from Sadler 2011, ILSI Europe Concise Monograph Series

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Meal ingestion data from literature

• Literature search glucose + insulin data• 18 publications• 57 meals, 220 subjects total

• 35 meals included, … subjects total

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Resulting model fits for different meals

Plasma glucose

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Adjustments in the model

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Conclusion & outlook

• Conclusion:– 35 different food products/meals included– Wide variety of meals– Only food intake part of model adjusted

• Outlook:– Dinner data largely missing measure 6

dinners in new research– Method & food profiles transferable to

model for diabetes type 1 and 2

Page 15: The Eindhoven Diabetes Education Simulator (e-DES) - incorporating different food products and composite meals

• Y Rozendaal• N van Riel• P Hilbers• W Cottaar

• C van Pul• H Haak

Sponsored by Novo Nordisk

The team