nutrition and aging - esteriambwashingtondc.esteri.it/resource/2010/12/07decabo1.pdf ·...
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Rafael de CaboAging, Interventions and Metabolism Section
Laboratory of Experimental GerontologyNational Institute on Aging
National Institutes of Health
Nutrition and Aging
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What is Aging? What are the mechanisms behind aging?
Can we manipulate the aging process?
Metabolic (Nutrition)
Genetic
Environment
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Mean Lifespan
Maximum Lifespan
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Heart DiseaseCancerStrokeEmphysemaPneumoniaDiabetesAccidentsKidney DiseaseAlzheimer’s
15-2425-34
35-4445-54
55-6465-74
75-8484+
AGE GROUP
Dea
ths
per 1
00,0
00 p
er y
ear 100000
10000
1000
100
10
1
0
Aging is the major risk factor for ALLchronic diseases
Heart DiseaseCancerStrokeEmphysemaPneumoniaDiabetesAccidentsKidney DiseaseAlzheimer’s
15-2425-34
35-4445-54
55-6465-74
75-8485-94
AGE GROUP
Dea
ths
per 1
00,0
00 p
er y
ear 100000
10000
1000
100
10
1
0
95-104105-114
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0
20
40
60
80
100
0 6 12 18 24 30 36 42
% S
urvi
val
ΔHea
lthsp
an
ΔLifespan
% O
ptim
al H
ealth
Manipulating Lifespan/Healthspan
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Time (weeks)50 60 70 80 90 100 110 120 130 140 150 160
Surv
ival
pro
port
ion
0.0
0.2
0.4
0.6
0.8
1.0 CR
AL
HF
Lifespan Manipulation C57Bl6/NIA
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Aging Intervention Program; Working Hypothesis
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Resveratrol
• Resveratrol is a phytoalexinproduced in response to stress (e.g. infection, heat, UV).
• Found in wine (0.2-5.8 mg/L wine).
• Cancer protection, inflammation and antioxidant.
• Resveratrol activates SIRT1 in vitro.
• It is similar to caloric restriction in that there is much debate about its mechanism (s).
OH
OH
HO
3572, today
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Aging Intervention Mouse Program
11 Groups, n≥50 mice/group
HealthspanLifespan
Food IntakeBody Temperature
BehaviorSerum/UrineAnalysis
Glucose Homeostasis
Tissue Analysis
Metabolic assessment
Resveratrol 100 and 400 mg/kg
NMRBody Comp
Immune/Stress test
1 year old male C57Bl6/J
C57BL/6J• Males• Aged (1y)• n ≥ 50/group• Microchiped
(ID+Temptransponders)
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Lifespan data
Time (weeks)50 60 70 80 90 100 110 120 130 140 150 160
Surv
ival
pro
port
ion
0.0
0.2
0.4
0.6
0.8
1.0
Standard diet control
SD high resv
EOD low resv
High calorie control
HC high resv
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Health and Lifespan Summary
• Protection against fatty liver induced by HF• Increased insulin sensitivity• Gene expression pattern similar to standard diet
for HF mice and to CR for SD mice• Increased performance on a rotarod• Mean and maximum lifespan extension in 3 groups
(HF+HR, HF+LR and EOD+LR)• Reduction in cataracts• Improve bone health parameters• Reduced damage/stress in cardiovascular system
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Resveratrol Non-Human Primate Work-in-progress!
Will Resveratrol Improve CardiovascularFunction In Monkeys on a High Fat Diet?
Julie Mattison and Kevin Pearson
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Nonhuman primates
• Resveratrol study• 24 Male rhesus monkeys (Macaca mulatta)• age range: 7‐13 years (full adult)• body mass range: 7‐20 kg• 24 month study
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24 monkeysStandard Diet (SD)
Group A Group B Group C10 HFS + Resv 10 HFS 4 SD control
Baseline Collection
Time 0
3 months
6 months
9 months
12 months
15 months
18 months
21 months
24 months
42% kcal fat27% kcal sucrosePlacebo twice daily
42% kcal fat27% kcal sucrose40 mg RESV twice daily
Groups and Timeline
13% kcal fat<5% sucrosePlacebo twicedaily
Sacrifice and tissue collectionSacrifice and tissue collection
Increase RESV dose to 240 mgtwice daily
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Body Weight & CompositionBody Weight
10
11
12
13
14
15
16
17
18
19
20
Baseli
ne3 M
onth 40
mg6 M
onth 40
mg9 M
onth 40
mg12
Month
40mg
3 month 24
0mg
6 month 24
09 m
onth 240
12 m
onth 24
0
Avg
Wei
ght (
kg) Control HFS HFS + Resveratrol
0
1
2
3
4
5
6
7
8
Baseline 1 yr 40 1 yr 240
HFS
RESV
LEA
N:F
AT
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Carotid (A)
Femoral (B)
D
Carotid
Femoral
Pulse Wave Velocity
ΔT
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Pulse Wave Velocity
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*p<0.01#p<0.05
Pulse Wave Velocity
700900
1100130015001700190021002300
0 6 12 15
PW
V (c
m/s
ec)
HFSResv
18 24
40 mg twice/day 240 mg twice/day
* * *
#
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Parametric Analysis of Gene Set Enrichment (PAGE)
http://www.broad.mit.edu/gsea/msigdb/msigdb_index.html
Uses a priori defined groupings of genes into functional pathways
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(Zsc
ore)
AF_
AC
(Zsc
ore)
AR
_AF
(Zsc
ore)
AF_
AC
(Zsc
ore)
AR
_AF
(Zsc
ore)
VF_
VC
(Zsc
ore)
VR_V
F
(Zsc
ore)
VF_
VC
(Zsc
ore)
VR_V
F
(Zsc
ore)
FHF2
_FC
2
(Zsc
ore)
FRS2
_FH
F2
(Zsc
ore)
FHF2
_FC
2
(Zsc
ore)
FRS2
_FH
F2
(Zsc
ore)
MH
F2_M
C2
(Zsc
ore)
MR
S2_
MH
F2
(Zsc
ore)
MH
F2_M
C2
(Zsc
ore)
MR
S2_
MH
F2
Aorta Ventricle Fat Muscle
HF:
SD
HFR
:HF
HF:
SD
HFR
:HF
HF:
SD
HFR
:HF
HF:
SD
HFR
:HF
Pathways up in HC
Pathways down in HC
Resveratrol opposes the transcriptional effects of a high calorie diet in Rhesus Monkeys, all 24 monkeys were arrayed
Microarray analysisParametric analysis of gene set enrichment
Uses a priori defined groupings of genes into functional pathways
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Heart MuscleMonkey vs. Mice, Genes Reversed by Resveratrol
Fat
NDUFA5NDUFB8
MYL6DNAJB6
IL6STCYP1B1
IGF1CRYAB
GSTM1CEBPB
GPX4ATP5B
EIF4A1ATF3
EEF1GARF3
EEF1B2APOD
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Preliminary Conclusions/Future Directions
• Resveratrol had a strong cardiovascular protective effect in NHP
• Improvement on PWV, an age related clinical marker of atherosclerosis
• Reversal of the gene transcription profiles in multiple tissues
• Overlap of genes/pathways in both species
• Studying mechanisms behind resveratrol’s effects• Human Intervention study with Luigi Ferrucci at CRB
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Acknowledgements
• Office of the Scientific Director• Laboratory of Experimental
Gerontology• Kevin Pearson• Kaitlyn Lewis• Nate Price• Julie Mattison• Dawn Boyer
• Research Resources Branch• Comparative Medicine Section• Gene Expression and Genomics Unit
• Laboratory of Cardiovascular Science• Laboratory of Clinical Investigation
• Office of Dietary Supplements• David Sinclair (Harvard)• Joe Baur (U. Penn)• Norm Wolf (Washington)• David Le Couteur (U. Sydney)• Placido Navas (U. Sevilla)• Zoltan Ungvari (NYMC)
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“See, the problem with doing things to prolong your life is that all the extra years come at the end, when you’re old.”