dr. peter j.e. verdegem chief scientific officer

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Dr. Peter J.E. Verdegem Chief Scientific Officer

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Page 1: Dr. Peter J.E. Verdegem Chief Scientific Officer

Dr. Peter J.E. VerdegemChief Scientific Officer

Page 2: Dr. Peter J.E. Verdegem Chief Scientific Officer

Causes of Cardiovascular DiseaseCauses of Cardiovascular Disease

Atherosclerosis

Myocardial Ischemia

Arythmia, Angina, Heart Attacks

Heart Failure

Cholesterol Genetics SmokingAlcohol

Page 3: Dr. Peter J.E. Verdegem Chief Scientific Officer

Cellular energy metabolismCellular energy metabolism

GlucoseFFA

Pyruvate

glycogenglucose 6P

glycolyse

ATP

Ca2+

Krebscycle

NADH2

FADH2

electron transport chain

O2

PCrADP

ATPCr

ADP

ATP

CKmyo

ATP ase

ATP

CKmito

ATP ase

ATP ase

ATP ase

actin/myosin

filaments

sarcoplasmicreticulum

mitochondrion

Calcium pumpand

Calcium channel

CKmyo

ADP

Ca2+

Lactate

Heart function

Page 4: Dr. Peter J.E. Verdegem Chief Scientific Officer

Energy metabolism and Heart Function

Cellular abnormalities

Energy metabolism and Heart Function

Cellular abnormalities

• Gradual accumulation of calcium in myocytes

• Mitochondrial calcium overload

• Decreased myocyte energy production

• Increased oxidative damage and protease activation

• Myocyte dysfunction and death

• Gradual accumulation of calcium in myocytes

• Mitochondrial calcium overload

• Decreased myocyte energy production

• Increased oxidative damage and protease activation

• Myocyte dysfunction and death

Sole 2000, Curr Opin Clin Nutr Metab CareSole 2000, Curr Opin Clin Nutr Metab Care

Page 5: Dr. Peter J.E. Verdegem Chief Scientific Officer

HomocysteineRole of folic acidHomocysteine

Role of folic acid

• Folic acid supplementation (0.2 - 1.0 mg/d) reduces plasma homocysteine levels up to 50 % (various studies)

• Folic acid enriched cereals in US• Folic acid supplementation (0.4 mg/d) might prevent 8%

of CVD deaths in US (estimation from meta-analysis)

• Folic acid supplementation (0.2 - 1.0 mg/d) reduces plasma homocysteine levels up to 50 % (various studies)

• Folic acid enriched cereals in US• Folic acid supplementation (0.4 mg/d) might prevent 8%

of CVD deaths in US (estimation from meta-analysis)

Brouwer 1998: AJCN, Ward 1997: Q J M.

Boushy 1995: J Am Med Ass.

Page 6: Dr. Peter J.E. Verdegem Chief Scientific Officer

CVD and elevated homocysteine

CVD and elevated homocysteine

NIR

SCO1SCO2 FIN

GER1

FAO

GER2

DENICEISR

SPAFRAJAP

0

100

200

300

400

500

600

700

6 7 8 9 10 11 12

Plasma total homocysteine (umol/L)

CV

D m

orta

lity

per

100

,000

Alfthan 1997

An increase in plasma tHcy of 1 micromol/L increases CVD risk with 10 %

Page 7: Dr. Peter J.E. Verdegem Chief Scientific Officer

Homocysteine metabolismHomocysteine metabolism

Methionine

Homocysteine

Vit.B12

THF

Cystathionine

Cysteine

Vit.B6

Vit.B6

Methylene-THF

MethylTHF

Folate

Zn

Page 8: Dr. Peter J.E. Verdegem Chief Scientific Officer

Coenzyme Q10Coenzyme Q10

• Small fat soluble molecule with distinct functions:

• Transport of electrons to mitochondria, essential for energy production

• Fat soluble antioxidant protecting a.o. LDL particles

• A high concentration of Co Q10 is found in the heart muscle

• Small fat soluble molecule with distinct functions:

• Transport of electrons to mitochondria, essential for energy production

• Fat soluble antioxidant protecting a.o. LDL particles

• A high concentration of Co Q10 is found in the heart muscle

Page 9: Dr. Peter J.E. Verdegem Chief Scientific Officer

Coenzyme Q10Coenzyme Q10

• Functions in energy production within the mitochondria

• Deficiency states have been demonstrated in the research

to be associated with many diseases, primarily

cardiovascular

(Bliznakow EG, et al. Adv in Ther. 1998;15(4):218‑228)

• Functions in energy production within the mitochondria

• Deficiency states have been demonstrated in the research

to be associated with many diseases, primarily

cardiovascular

(Bliznakow EG, et al. Adv in Ther. 1998;15(4):218‑228)

Page 10: Dr. Peter J.E. Verdegem Chief Scientific Officer

Coenzyme Q10Coenzyme Q10

• Over 40 human clinical trials have been conducted in relation to cardiac parameters

• Meta-analysis on 8 studies showed significant effects for ejection fraction, cardiac output, stroke volume, end-diastolic volume (Soja, 1997)

• Although statin drugs are used to reduce cardiovascular morbidity and mortality, they consequently lower Co Q10 levels

• Over 40 human clinical trials have been conducted in relation to cardiac parameters

• Meta-analysis on 8 studies showed significant effects for ejection fraction, cardiac output, stroke volume, end-diastolic volume (Soja, 1997)

• Although statin drugs are used to reduce cardiovascular morbidity and mortality, they consequently lower Co Q10 levels

Page 11: Dr. Peter J.E. Verdegem Chief Scientific Officer

Heart FunctionRole of Co-enzyme Q10

Heart FunctionRole of Co-enzyme Q10

• Limiting factor in electron transport chain

• Reduced concentration in myocyte

• A meta-analysis of 8 DBPC Q10 (60-200 mg/d) intervention trials in patients with NYHA class I-IV showed improved:– Ejection fraction: 1.37 SD– Stroke volume: 0.71 SD– Cardiac output: 0.61 SD– End diastolic volume: 1.23 SD

• Pre-operative Q10 supplementation (30-60 mg) in CABG patients improves post-operative cardiac output

• Limiting factor in electron transport chain

• Reduced concentration in myocyte

• A meta-analysis of 8 DBPC Q10 (60-200 mg/d) intervention trials in patients with NYHA class I-IV showed improved:– Ejection fraction: 1.37 SD– Stroke volume: 0.71 SD– Cardiac output: 0.61 SD– End diastolic volume: 1.23 SD

• Pre-operative Q10 supplementation (30-60 mg) in CABG patients improves post-operative cardiac output

Soja 1997: Molec. Aspects Med, Kamikawa 1985: Am J Cardiol, Tanaka 1982: Ann Thorac Surg. Folkers 1985: Proc. Natl Acad. Sci.

Page 12: Dr. Peter J.E. Verdegem Chief Scientific Officer

L-CarnitineL-Carnitine

• Amino acid, although strictly speaking not

• Belongs more to the B vitamins

• Body can synthesize if enough iron, vitamin B1, vitamin B6, lysine, and methionine are present

• Dietary source is meat

• Amino acid, although strictly speaking not

• Belongs more to the B vitamins

• Body can synthesize if enough iron, vitamin B1, vitamin B6, lysine, and methionine are present

• Dietary source is meat

Page 13: Dr. Peter J.E. Verdegem Chief Scientific Officer

L-CarnitineL-Carnitine

• Transfers long-chain fatty acids into the mitochondria

• Fuels the energy factories of the heart

• 70% of the heart energy comes from fatty acid breakdown

• In 1978, the first cardiovascular anti-ischemic effect was demonstrated and improvements in Electrocardiogram measurements

• Transfers long-chain fatty acids into the mitochondria

• Fuels the energy factories of the heart

• 70% of the heart energy comes from fatty acid breakdown

• In 1978, the first cardiovascular anti-ischemic effect was demonstrated and improvements in Electrocardiogram measurements

Page 14: Dr. Peter J.E. Verdegem Chief Scientific Officer

MitochondriaMitochondria

Page 15: Dr. Peter J.E. Verdegem Chief Scientific Officer

MitochondriaMitochondria

Page 16: Dr. Peter J.E. Verdegem Chief Scientific Officer

Hawthorn (Crataegus Oxycantha)Hawthorn (Crataegus Oxycantha)

Page 17: Dr. Peter J.E. Verdegem Chief Scientific Officer

Hawthorn (Crataegus Oxycantha)Hawthorn (Crataegus Oxycantha)

• Small shrubby tree with with bark

• Rich in flavonoids, vitamins, minerals and cardiotonic amines

• Exerts antioxidant effect on radicals inhibiting Angiotensin Converting Enzymes (ACEs)

• Vasodilation, blood flow to the heart

• Supports muscle contraction, cardiac rhythm

• Hawthorn is included in Germany’s Commission E Monograph for cardiovascular health

• Small shrubby tree with with bark

• Rich in flavonoids, vitamins, minerals and cardiotonic amines

• Exerts antioxidant effect on radicals inhibiting Angiotensin Converting Enzymes (ACEs)

• Vasodilation, blood flow to the heart

• Supports muscle contraction, cardiac rhythm

• Hawthorn is included in Germany’s Commission E Monograph for cardiovascular health

Page 18: Dr. Peter J.E. Verdegem Chief Scientific Officer

Heart functionrole of HawthornHeart function

role of Hawthorn• Active ingredients

– flavonoids, polyphenols, triterpenic acids, vitamins, minerals and cardiotonic amines

• Mechanistic action

– inhibiting cellular phosphodiesterase, enhance intracellular cAMP and improve contractile force

– inhibiting the angiotensin converting enzyme activity, resulting in vasodilatation

– capturing free radicals

• Active ingredients

– flavonoids, polyphenols, triterpenic acids, vitamins, minerals and cardiotonic amines

• Mechanistic action

– inhibiting cellular phosphodiesterase, enhance intracellular cAMP and improve contractile force

– inhibiting the angiotensin converting enzyme activity, resulting in vasodilatation

– capturing free radicals

Page 19: Dr. Peter J.E. Verdegem Chief Scientific Officer

Hawthorn trialsHawthorn trials

Study

Design

Subjects

Suppl.

Outcome

Weikl 1996

DB

136 CHF NYHA II

160 mg 8 weeks

Improved pressure heart rate and QOL Reduction Dyspnea

Weng 1984

DBPC 46 angina pectoris

100 mg 4 weeks

Reduction serum triglycerides and cholesterol

Schmidt 1994

DBPC

78 CHF NYHA II

600 mg 8 weeks

Improved exercise performance Reduction SBP, HR and pressure/rate

Study

Design

Subjects

Suppl.

Outcome

Weikl 1996

DB

136 CHF NYHA II

160 mg 8 weeks

Improved pressure heart rate and QOL Reduction Dyspnea

Weng 1984

DBPC 46 angina pectoris

100 mg 4 weeks

Reduction serum triglycerides and cholesterol

Schmidt 1994

DBPC

78 CHF NYHA II

600 mg 8 weeks

Improved exercise performance Reduction SBP, HR and pressure/rate

Page 20: Dr. Peter J.E. Verdegem Chief Scientific Officer

TaurineTaurine

• Amino acid• Found in eggs, meat, fish and milk• Can be synthesized by the body, but is often too low• Vegetarians rely on body synthesis

• Amino acid• Found in eggs, meat, fish and milk• Can be synthesized by the body, but is often too low• Vegetarians rely on body synthesis

Page 21: Dr. Peter J.E. Verdegem Chief Scientific Officer

TaurineTaurine

• High concentrations are found in heart muscle• Plays a role in electrolyte balance within the cells

(Calcium balance) and has an effect on cardiac muscle tissue cell membrane

• Prevents potassium leak from the heart muscle. This leak can result in dangerous cardiac arrhythmias

• Has antioxidant properties, protecting membrane lipids from peroxidation

• High concentrations are found in heart muscle• Plays a role in electrolyte balance within the cells

(Calcium balance) and has an effect on cardiac muscle tissue cell membrane

• Prevents potassium leak from the heart muscle. This leak can result in dangerous cardiac arrhythmias

• Has antioxidant properties, protecting membrane lipids from peroxidation

Page 22: Dr. Peter J.E. Verdegem Chief Scientific Officer

Heart functionRole of TaurineHeart functionRole of Taurine

• Modulation of calcium transport

• Elevated taurine levels prevent calcium overload and are cardioprotective,

• Taurine deficiency reduces ventricular contractile force

• Ischaemic and CABG heart patients have reduced intracellular taurine levels.

• Modulation of calcium transport

• Elevated taurine levels prevent calcium overload and are cardioprotective,

• Taurine deficiency reduces ventricular contractile force

• Ischaemic and CABG heart patients have reduced intracellular taurine levels.

Schaffer 1994, Adv. Exp. Med Biol, Suleiman 1993: Br Heart J

Lake 1994: Adv. Exp. Med. Biol,

Page 23: Dr. Peter J.E. Verdegem Chief Scientific Officer

Taurine intervention trialsTaurine intervention trials

Study

Design

Subjects

Suppl.

Outcome

Azuma 1985

DBPC cross-over

14 CHF patients

6 g/d 4 weeks

Improved NYHA Decrease pre-ejection period Reduced chest film abnormalities

Azuma 1992

DBPC

17 HF patients

3 g/d 6 weeks

Improved left ventricular function

Azuma 1983

Open study

24 CHF patients

2 g/d 4–8 weeks

Improved NYHA

Study

Design

Subjects

Suppl.

Outcome

Azuma 1985

DBPC cross-over

14 CHF patients

6 g/d 4 weeks

Improved NYHA Decrease pre-ejection period Reduced chest film abnormalities

Azuma 1992

DBPC

17 HF patients

3 g/d 6 weeks

Improved left ventricular function

Azuma 1983

Open study

24 CHF patients

2 g/d 4–8 weeks

Improved NYHA

Page 24: Dr. Peter J.E. Verdegem Chief Scientific Officer

Cellular energy metabolismCellular energy metabolism

GlucoseFFA

Pyruvate

glycogenglucose 6P

glycolyse

ATP

Ca2+

Krebscycle

NADH2

FADH2

electron transport chain

O2

PCrADP

ATPCr

ADP

ATP

CKmyo

ATP ase

ATP

CKmito

ATP ase

ATP ase

ATP ase

actin/myosin

filaments

sarcoplasmicreticulum

mitochondrion

Calcium pumpand

Calcium channel

CKmyo

ADP

Ca2+

Lactate

Heart function

Taurine

CoQ10 Anti-oxidantsHawthorn

Page 25: Dr. Peter J.E. Verdegem Chief Scientific Officer

Oxidative Stressrole of Vitamin EOxidative Stressrole of Vitamin E

• Vitamin E reduces susceptibility of LDL to oxidize.

• Long term use (> 2 years) of vitamin E supplements is associated with reduced risk of coronary heart disease:

– RR of 0.59 (95% confidence interval 0.38 - 0.91)

• DBPC Vitamin E (400 - 800 IU) intervention trial in 2002 CVD patients resulted in significant reduction of non fatal Myocard Infarcts with 77%

• Vitamin E reduces susceptibility of LDL to oxidize.

• Long term use (> 2 years) of vitamin E supplements is associated with reduced risk of coronary heart disease:

– RR of 0.59 (95% confidence interval 0.38 - 0.91)

• DBPC Vitamin E (400 - 800 IU) intervention trial in 2002 CVD patients resulted in significant reduction of non fatal Myocard Infarcts with 77%

Marangon 1999, Free Radic Biol Med, Stampfer 1993, NEJM (nurses health study), Stephans 1996, Lancet (CHAOS)

Page 26: Dr. Peter J.E. Verdegem Chief Scientific Officer

Clinical Trial with MyoViveClinical Trial with MyoVive

• Performed in Toronto Canada with MyoVive

• Double blind placebo controlled trial

• 41 Congestive Heart Failure patients

• Performed in Toronto Canada with MyoVive

• Double blind placebo controlled trial

• 41 Congestive Heart Failure patients

Page 27: Dr. Peter J.E. Verdegem Chief Scientific Officer

Clinical Trial with MyoViveClinical Trial with MyoVive

70

80

90

100

110

120

130

week 0 week 4 week 12

MyoVivePlacebo

Tim

e til

l exh

aust

ion

Page 28: Dr. Peter J.E. Verdegem Chief Scientific Officer

Clinical Trial with MyoViveClinical Trial with MyoVive

Page 29: Dr. Peter J.E. Verdegem Chief Scientific Officer

100110120130140150160170180190200

Baseline Post treatment

Clinical TrialClinical Trial

PlaceboMyoVive

End

dia

stol

ic v

olum

e

Page 30: Dr. Peter J.E. Verdegem Chief Scientific Officer

• Conclusions:– Supplementation with carnitine, taurine and Co-Q10

resulted in higher myocardial levels of the ingredients

– These higher levels improve myocardial function

– After supplementation the time to exhaustion is larger

– Supplementation leads to a reduction of end diastolic volume

– This reduction improves prognosis for cardiac diseases

• Conclusions:– Supplementation with carnitine, taurine and Co-Q10

resulted in higher myocardial levels of the ingredients

– These higher levels improve myocardial function

– After supplementation the time to exhaustion is larger

– Supplementation leads to a reduction of end diastolic volume

– This reduction improves prognosis for cardiac diseases

Clinical Trial with MyoViveClinical Trial with MyoVive

Page 31: Dr. Peter J.E. Verdegem Chief Scientific Officer