deuterium content of water and glucose tolerance...
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Deuterium content of water and glucose tolerance: potential role for the prevalence of affective disturbances
U1119
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Serotonin and Mood Disorders
The serotonin transporter (5HTT) is implicated in mood disorders and depression
5HTT contains a gene-linked polymorphic region giving rise to a short and long allele
The short allele results in lower transcriptional efficiency of the promoter
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S allele
associated with anxiety-related traits and susceptibility for depression
Canli et al Nature Neuroscience 10, 1103 - 1109 (2007)
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5HTT S allele and depression
Caspi et al Science 301 (5631): 386-389 (2003)
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Generation of a model animal
© The Nobel Committee for Physiology or Medicine Illustration: Annika Röh
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The SERT mouse (5HTT, Slc6a4)
Bengel et al Molecular Pharmacology vol. 53 no. 4 649-655 (1998)
ES cells Mice
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The SERT mouse (5HTT, Slc6a4)
Murphy et al Nature Reviews Neuroscience 9, 85-96 (2008)
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Depression rates and deuterium content of tap water
Upddated from Strekalova et al Behavioural Brain Research, 277: 237 – 244 (2015)
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Diabetes prevalence and deuterium content of tap water
Modified from Strekalova et al Behavioural Brain Research, 277: 237 – 244 (2015) with CDC’s Division of Diabetes Translation, National Diabetes Surveillance System available at
http://www.cdc.gov/diabetes/statistics
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Study Design
3.5 week old 5HTT+/- mice
14 days of drug treatment
control light water (CLW) deuterium content of 155 ppm
light water (LW) 91 ppm deuterium
Citalopram (Cit) positive control (15mg/Kg/day, via water)
Behavioral tests
GTT (ip 1.5 mg/g)
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Modified Porsolt forced swim test
Modified to test for learned helplessness and for brain plasticity triggered by stress Two 6 min sessions during 2 consecutive days Third 6 min session 120 hours after the 2nd
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Modified Porsolt forced swim test
Session 1
CLW LW CLW LW0
20
40
60
80***
Late
ncy o
f fl
oati
ng
, sec
Session 2
CLW LW CLW LW
Session 3
CLW LW CLW LW
WT
HET
Session 1
CLW LW CLW LW0
100
200
300
400
Du
rati
on
of
flo
ati
ng
, sec
Session 2
CLW LW CLW LW
Session 3
CLW LW CLW LW
WT
HET**
**
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Effect of CLW, LW and Cit on rearing
CLW LW CIT CLW LW CIT0
20
40
60
80WT
HET*
*
nu
mb
er
of
rears
, n
5 min session in novel cage with fresh bedding and red lighting
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Novel object exploration
CLW LW CIT CLW LW CIT0
10
20
30WT
HET
*
Du
rati
on
of
exp
lora
tio
n,
s
15 min session under 5 lux
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Novel object recognition
1st day animals allowed to explore 2 objects for 15 min
2nd day new object is placed at the edge
Latency to discover new object and preference is measured
1 meter
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Novel object recognition
CLW LW CIT CLW LW CIT0
20
40
60
80WT
HET
*o
bje
ct
reco
gn
itio
n,
tim
e %
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Dark/Light Box
Test for anxiety related behavior
Screens anxiolytic compounds
5 min session
Lit compartment intensity at 25 lux
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Dark/Light Box
CLW LW CIT CLW LW CIT0
20
40
60
*
Late
ncy o
f exit
, s
CLW LW CIT CLW LW CIT0
50
100
150
Tim
e s
pen
t in
lit
bo
x,
s
CLW LW CIT CLW LW CIT0
5
10
15WT
HET
*
Nu
mb
er
of
exit
s,
n
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Glucose tolerance
Fasted 18 hours, 1.5 mg/g ip glucose
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Summary
5 HTT +/- aged females show lower cognitive performance and increased symptoms of anxiety
LW was more effective in WT SERT animals but had efficacy in both groups for anxiety
LW shows promise for improved glucose utilization
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Timantti AB Stockholm, Sweden
Prof Dr Klaus-Peter Lesch Molecular Psychiatry, Laboratory of Translational Neuroscience Zentrum für Psychische Gesundheit (ZEP) Füchsleinstraße 15 97080 Würzburg Germany
Dr Tatyana Strekalova Maastricht University Department of Psychiatry and Neuropsychology School for Mental Health and Neuroscience (MHeNS) 6200 MD Maastricht The Netherlands
Dr Dinora Lopes and Prof Henrique Silveira Global Health and Tropical Medicine Instituto de Higiene e Medicina Tropical Universidade NOVA de Lisboa
Dr Brandon Cline Biopathologie de la Myéline, Neuroprotection et Stratégies Thérapeutiques, INSERM U1119, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Faculté de Médecine, Strasbourg, France