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While there are opportunities for expanded use of foods, and their components, to achieve one's genetic potential, increase productivity and reduce the risk of disease.. Hippocrates Proclaimedalmost 2500 years ago:Let thy food be thy medicine and thy medicine be thy food. Charts, Maps, Tables, The World Health Report, WHO 2003.
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2. Accelerate pace of discoveries
Translate research more rapidly from laboratories to patients and back
Explore novel approaches orders of magnitude more effective than current
Develop new strategies, 2nd road mapAccelerate pace of discoveries
Translate research more rapidly from laboratories to patients and back
Explore novel approaches orders of magnitude more effective than current
Develop new strategies, 2nd road map
7. WHO proposes a new global goal: to reduce the projected increase of chronic disease death rates by 2% each year until 2015.
WHO proposes a new global goal: to reduce the projected increase of chronic disease death rates by 2% each year until 2015.
9. In supplements, vitamins grew 3%, herbs & botanicals 2%, minerals 4%, sports supplements 6%, liquid meal supplements –3% and specialty supplements 12%.In supplements, vitamins grew 3%, herbs & botanicals 2%, minerals 4%, sports supplements 6%, liquid meal supplements –3% and specialty supplements 12%.
12. Added Studies
Key TJ, Sharp GB, Appleby PN et al. Soya foods and breast cancer risk: a prospective study in Hiroshima and Nagasaki, Japan. British Journal of Cancer, Dec 1999.
Zheng W, Dai Q, Custer LJ, et al. Urinary excretion of isoflavonoids and the risk of breast cancer. Cancer epidemiology biomarkers and prevention, Jan 1999.
Wu AH, Wan P, Hankin J, et al. Adolescent and adult soy intake and risk of breast cancer in Asian-Americans. Carcinogenesis, Sep 2002.
Yamamoto S, Sobue T, Kobayashi M, et al. Soy, isoflavones, and breast cancer risk in Japan. Journal of the National cancer Institute, Jan 2003.
Wu C, Ray RM, Lin MG, et al. A case-control study of risk factors for fibrocystic breast conditions: Shanghai Nutrition and Breast Disease Study, China, 1995-2000. American Journal of Epidemiology, Nov 2004.
Witte JS, Ursin G, Siemiatycki J, et al. Diet and premenopausal bilateral breast cancer: a case-control study. Breast cancer research and treatment, Feb 1997.
Horn-Ross PL, John EM, Lee M et al. Phytoestrogen consumption and breast cancer risk in a multiethnic population: the Bay Area Breast Cancer Study. American journal of epidemiology, Sep 2001.
Linseisen J, Piller R, Hermann S, et al. Dietary phytoestrogen intake and premenopausal breast cancer risk in a German case-control study. International Journal of Cancer, Jun 2004.Added Studies
Key TJ, Sharp GB, Appleby PN et al. Soya foods and breast cancer risk: a prospective study in Hiroshima and Nagasaki, Japan. British Journal of Cancer, Dec 1999.
Zheng W, Dai Q, Custer LJ, et al. Urinary excretion of isoflavonoids and the risk of breast cancer. Cancer epidemiology biomarkers and prevention, Jan 1999.
Wu AH, Wan P, Hankin J, et al. Adolescent and adult soy intake and risk of breast cancer in Asian-Americans. Carcinogenesis, Sep 2002.
Yamamoto S, Sobue T, Kobayashi M, et al. Soy, isoflavones, and breast cancer risk in Japan. Journal of the National cancer Institute, Jan 2003.
Wu C, Ray RM, Lin MG, et al. A case-control study of risk factors for fibrocystic breast conditions: Shanghai Nutrition and Breast Disease Study, China, 1995-2000. American Journal of Epidemiology, Nov 2004.
Witte JS, Ursin G, Siemiatycki J, et al. Diet and premenopausal bilateral breast cancer: a case-control study. Breast cancer research and treatment, Feb 1997.
Horn-Ross PL, John EM, Lee M et al. Phytoestrogen consumption and breast cancer risk in a multiethnic population: the Bay Area Breast Cancer Study. American journal of epidemiology, Sep 2001.
Linseisen J, Piller R, Hermann S, et al. Dietary phytoestrogen intake and premenopausal breast cancer risk in a German case-control study. International Journal of Cancer, Jun 2004.
14. We’ve learned from you that we must interrupt the process.
We’ve learned from you that we must interrupt the process.
15. $140 Billion current global market. Skeptics suggest nutrigenomics for Rich world activity and not global issue
Adds confusion to already complex public health approaches
Shifts investments from other challenges: inequalities, etc.
Ethical Minefield$140 Billion current global market. Skeptics suggest nutrigenomics for Rich world activity and not global issue
Adds confusion to already complex public health approaches
Shifts investments from other challenges: inequalities, etc.
Ethical Minefield
17. Variation in Glucosinolate Among Cruciferous vegetables (µmol/g DryWeight) Cruciferous vegetables are relatively unique in our diet as a source of glucosinolates, a series of plant secondary metabolites derived from amino acids with a thioglucose and an N-sulfate moiety. We surveyed a large number of different varieties of crucifers, identifying that there are 4 glucosinolates that are predominant. The profile of these glucosinolates is relatively similar for Brussels sprouts, cabbage, cauliflower and kale, being particularly high in sinigrin. This glucosinolate, upon hydrolysis, releases allyl isothiocyanate whih is responsible for the spicey bite in the core of white cabbage. The american public prefers the less spicey flavor of broccoli, which has little or no sinigrin. However, the total GS level is similar between broccoli and the other cruciferous vegetables, the difference being made up by glucoraphanin. In recent years, Talalay and colleagues have reported numerous publications on sulforaphane, an hydroollysis product of suforaphane, showing that it is potent in upregulating quinone reductase in mouse hepatoma cell cultlres
Cruciferous vegetables are the principle dietary source of ITCs, but the types of crucifers frequently consumed by humans are limited. Examples of popular crucifers that are particularly rich in certain ITCs include mustard and horseradish—allyl-ITC (AITC) [9], watercress—phenethyl-ITC (PEITC) [10], dikon—dehydroerucin [1] and [11], and broccoli and broccoli sprouts—sulforaphane (SF)
30 g watercress containing 21.6 mg of gluconasturtiin by each study subject, an average of 47% of the dosed gluconasturtiin was recovered Cruciferous vegetables are relatively unique in our diet as a source of glucosinolates, a series of plant secondary metabolites derived from amino acids with a thioglucose and an N-sulfate moiety. We surveyed a large number of different varieties of crucifers, identifying that there are 4 glucosinolates that are predominant. The profile of these glucosinolates is relatively similar for Brussels sprouts, cabbage, cauliflower and kale, being particularly high in sinigrin. This glucosinolate, upon hydrolysis, releases allyl isothiocyanate whih is responsible for the spicey bite in the core of white cabbage. The american public prefers the less spicey flavor of broccoli, which has little or no sinigrin. However, the total GS level is similar between broccoli and the other cruciferous vegetables, the difference being made up by glucoraphanin. In recent years, Talalay and colleagues have reported numerous publications on sulforaphane, an hydroollysis product of suforaphane, showing that it is potent in upregulating quinone reductase in mouse hepatoma cell cultlres
Cruciferous vegetables are the principle dietary source of ITCs, but the types of crucifers frequently consumed by humans are limited. Examples of popular crucifers that are particularly rich in certain ITCs include mustard and horseradish—allyl-ITC (AITC) [9], watercress—phenethyl-ITC (PEITC) [10], dikon—dehydroerucin [1] and [11], and broccoli and broccoli sprouts—sulforaphane (SF)
30 g watercress containing 21.6 mg of gluconasturtiin by each study subject, an average of 47% of the dosed gluconasturtiin was recovered
21. Plasma and Tissue Concentrations Are Not Always Identical Values (total amount of each catechin) are means ± SEM of 5 male
Sprague-Dawley rats that received 0.6% (wt/vol) green tea polyphenol
solution as sole source of drinking fluid for 8 days before sacrifice at 9
AM. Protocol I gave slightly higher and more reproducible results than
Protocol II.
Values (total amount of each catechin) are means ± SEM of 5 male
Sprague-Dawley rats that received 0.6% (wt/vol) green tea polyphenol
solution as sole source of drinking fluid for 8 days before sacrifice at 9
AM. Protocol I gave slightly higher and more reproducible results than
Protocol II.
22. Individuals
will be genetically tested to determine whether or not they are
likely to respond to certain drugs. In the example shown (Fig.
8), children who have an arginine at codon 27 in the -adrenergic
receptor for both alleles respond much better to albuterol
than if they are homozygous for glycine.20 Clearly, if oncologists
could predict which patients would respond to specific
chemotherapies, unnecessary side effects could be avoided and
better response rates observed. However, such prediction
methods are not yet effective and it would be unfortunate to
deny a patient a therapy that otherwise would have been
helpful.
Genomics, proteomics, and the new paradigm in biomedical research
Joshua LaBaer, MD, PhD Genet Med 2002:4(6, Supplement):2S–9S.
Individuals
will be genetically tested to determine whether or not they are
likely to respond to certain drugs. In the example shown (Fig.
8), children who have an arginine at codon 27 in the -adrenergic
receptor for both alleles respond much better to albuterol
than if they are homozygous for glycine.20 Clearly, if oncologists
could predict which patients would respond to specific
chemotherapies, unnecessary side effects could be avoided and
better response rates observed. However, such prediction
methods are not yet effective and it would be unfortunate to
deny a patient a therapy that otherwise would have been
helpful.
Genomics, proteomics, and the new paradigm in biomedical research
Joshua LaBaer, MD, PhD Genet Med 2002:4(6, Supplement):2S–9S.
23. Dietary Calcium, VDR FokI Genotype and Colon Cancer Risk
26. BACKGROUND: The role of caffeine as a risk factor for bone loss is controversial. OBJECTIVE: Our goals were 1) to compare in both a cross-sectional study and a 3-y longitudinal study the bone mineral density (BMD) of postmenopausal women consuming high or low amounts of caffeine and 2) to study the interaction between caffeine intake, vitamin D receptor (VDR)polymorphism, and BMD in the longitudinal study. DESIGN: The results are derived from cross-sectional measurements of BMD in 489 elderly women (aged 65-77 y) and from longitudinal measurements made in 96 of these women who were treatedwith a placebo for 3 y. Changes in BMD were adjusted for confounding factors and were compared between groups with eitherlow (< or =300 mg/d) or high (>300 mg/d) caffeine intakes and between the VDR genotype subgroups of the low- andhigh-caffeine groups. RESULTS: Women with high caffeine intakes had significantly higher rates of bone loss at the spine than did those with low intakes (-1.90 +/- 0.97% compared with 1.19 +/- 1.08%; P = 0.038). When the data were analyzed according to VDR genotype and caffeine intake, women with the tt genotype had significantly (P = 0.054) higher rates of boneloss at the spine (-8.14 +/- 2.62%) than did women with the TT genotype (-0.34 +/- 1.42%) when their caffeine intake was>300 mg/d. CONCLUSIONS: Intakes of caffeine in amounts >300 mg/d ( approximately 514 g, or 18 oz, brewed coffee) accelerate bone loss at the spine in elderly postmenopausal women. Furthermore, women with the tt genetic variant of VDRappear to be at a greater risk for this deleterious effect of caffeine on bone.BACKGROUND: The role of caffeine as a risk factor for bone loss is controversial. OBJECTIVE: Our goals were 1) to compare in both a cross-sectional study and a 3-y longitudinal study the bone mineral density (BMD) of postmenopausal women consuming high or low amounts of caffeine and 2) to study the interaction between caffeine intake, vitamin D receptor (VDR)polymorphism, and BMD in the longitudinal study. DESIGN: The results are derived from cross-sectional measurements of BMD in 489 elderly women (aged 65-77 y) and from longitudinal measurements made in 96 of these women who were treatedwith a placebo for 3 y. Changes in BMD were adjusted for confounding factors and were compared between groups with eitherlow (< or =300 mg/d) or high (>300 mg/d) caffeine intakes and between the VDR genotype subgroups of the low- andhigh-caffeine groups. RESULTS: Women with high caffeine intakes had significantly higher rates of bone loss at the spine than did those with low intakes (-1.90 +/- 0.97% compared with 1.19 +/- 1.08%; P = 0.038). When the data were analyzed according to VDR genotype and caffeine intake, women with the tt genotype had significantly (P = 0.054) higher rates of boneloss at the spine (-8.14 +/- 2.62%) than did women with the TT genotype (-0.34 +/- 1.42%) when their caffeine intake was>300 mg/d. CONCLUSIONS: Intakes of caffeine in amounts >300 mg/d ( approximately 514 g, or 18 oz, brewed coffee) accelerate bone loss at the spine in elderly postmenopausal women. Furthermore, women with the tt genetic variant of VDRappear to be at a greater risk for this deleterious effect of caffeine on bone.
27. Scientists have identified about
5-8 million
locations where single-base DNA differences
(SNPs) occur in humans.Scientists have identified about
5-8 million
locations where single-base DNA differences
(SNPs) occur in humans.
28. Nutrigenomic TestingPromises versus Reality! Commercial Nutrition-Gene Test
Genelex Sciona 19 genes including MTHFR $395
Gene Care CVD nutritional genetic test (South Africa) MTHFR (Hcyst), apoA1 (HDL) +9 others $400
Exceeding complex area since about 30, 000 Genes, 5-8 Million SNPs
29. Transgenic and Knockout Models Key to Identifying Sites of Action of Food Components
31. Diet May Influence Genetic and Epigenetics! Epigenetics: The study of heritable changes in gene expression that occur without a change in DNA sequence.
DNA methylation- CpG islands
Histone posttranslational modifications:
Acetylation of lysines
Methylation of lysines and arginines
Phosphorylations of serines and threonines
ADP-ribosylation of glutamic acids
Ubiquitination of lysine residues
Sumolyation of lysine residues
Biotinylation of lysines
Recently, in human cells small-interfering RNAs (siRNAs) have been shown to mediate transcriptional gene silencing (Morris KV, Cell Mol. Life Sci. 62:3057-3066, 2005).
32. Dr. Law (England) mentioned programming in the neonate. Permanently alters structure and function. Such is the case with this study.Dr. Law (England) mentioned programming in the neonate. Permanently alters structure and function. Such is the case with this study.
36. Transcriptomic Studies Are Providing Clues About Molecular Targets for Specific Food Components
39. A naturally occurring, cocoa-derived pentameric procyanidin (pentamer) was previously shown to cause G0/G1 cell cycle arrest in human breast cancer cells by an unknown molecular mechanism. Here, we show that pentamer selectively inhibits the proliferation of human breast cancer cells (MDA MB-231, MDA MB-436, MDA MB-468, SKBR-3, and MCF-7) and benzo(a)pyrene-immortalized 184A1N4 and 184B5 cells. In contrast, normal human mammary epithelial cells in primary culture and spontaneously immortalized MCF-10A cells were significantly resistant. We evaluated whether this differential response to pentamer may involve depolarization of the mitochondrial membrane. Pentamer caused significant depolarization of mitochondrial membrane in MDA MB231 cells but not the more normal MCF-10A cells, whereas other normal and tumor cell lines tested gave variable results. Further investigations, using a proteomics approach with pentamer-treated MDA MB-231, revealed a specific dephosphorylation, without changes in protein expression, of several G1-modulatory proteins: Cdc2 (at Tyr15), forkhead transcription factor (at Ser256, the Akt phosphorylation site) and p53 (Ser392). Dephosphorylation of p53 (at Ser392) by pentamer was confirmed in MDA MB-468 cells. However, both expression and phosphorylation of retinoblastoma protein were decreased after pentamer treatment. Our results show that breast cancer cells are selectively susceptible to the cytotoxic effects of pentameric procyanidin, and suggest that inhibition of cellular proliferation by this compound is associated with the site-specific dephosphorylation or down-regulation of several cell cycle Pentamer selectively inhibits the growth of human breast cancer cells compared with spontaneously immortalized and normal mortal HMECs. Human breast cancer MDA MB-231 (A) and MDA MB-436 (B), nontransformed spontaneously immortalized MCF-10A (C), and normal mortal HMEC (D) cells were grown in triplicate in 96-well plates and treated with 100 µg/mL of pentamer (hashed line) or DMSO vehicle (solid line) for up to 10 d as described in Materials and Methods. Samples were collected at the indicated days post-pentamer treatment and analyzed by crystal violet assay as described. The data presented are an average from triplicate wells from two to three independent experiments. Bars, SD; *, statistical significance compared with DMSO treated controls (P < 0.0001). A naturally occurring, cocoa-derived pentameric procyanidin (pentamer) was previously shown to cause G0/G1 cell cycle arrest in human breast cancer cells by an unknown molecular mechanism. Here, we show that pentamer selectively inhibits the proliferation of human breast cancer cells (MDA MB-231, MDA MB-436, MDA MB-468, SKBR-3, and MCF-7) and benzo(a)pyrene-immortalized 184A1N4 and 184B5 cells. In contrast, normal human mammary epithelial cells in primary culture and spontaneously immortalized MCF-10A cells were significantly resistant. We evaluated whether this differential response to pentamer may involve depolarization of the mitochondrial membrane. Pentamer caused significant depolarization of mitochondrial membrane in MDA MB231 cells but not the more normal MCF-10A cells, whereas other normal and tumor cell lines tested gave variable results. Further investigations, using a proteomics approach with pentamer-treated MDA MB-231, revealed a specific dephosphorylation, without changes in protein expression, of several G1-modulatory proteins: Cdc2 (at Tyr15), forkhead transcription factor (at Ser256, the Akt phosphorylation site) and p53 (Ser392). Dephosphorylation of p53 (at Ser392) by pentamer was confirmed in MDA MB-468 cells. However, both expression and phosphorylation of retinoblastoma protein were decreased after pentamer treatment. Our results show that breast cancer cells are selectively susceptible to the cytotoxic effects of pentameric procyanidin, and suggest that inhibition of cellular proliferation by this compound is associated with the site-specific dephosphorylation or down-regulation of several cell cycle Pentamer selectively inhibits the growth of human breast cancer cells compared with spontaneously immortalized and normal mortal HMECs. Human breast cancer MDA MB-231 (A) and MDA MB-436 (B), nontransformed spontaneously immortalized MCF-10A (C), and normal mortal HMEC (D) cells were grown in triplicate in 96-well plates and treated with 100 µg/mL of pentamer (hashed line) or DMSO vehicle (solid line) for up to 10 d as described in Materials and Methods. Samples were collected at the indicated days post-pentamer treatment and analyzed by crystal violet assay as described. The data presented are an average from triplicate wells from two to three independent experiments. Bars, SD; *, statistical significance compared with DMSO treated controls (P < 0.0001).
41. Critical to Understanding the Physiological Effects of Bioactive Food Components Captures information about:
Gene expression patterns
Post-translational modifications
Cross-talk within and across cells.Critical to Understanding the Physiological Effects of Bioactive Food Components Captures information about:
Gene expression patterns
Post-translational modifications
Cross-talk within and across cells.
42. Metabolomic Analysis of the Biochemical Effects of Dietary Isoflavones
44. Components are “complex mixtures” - act synergistically
45. Combination of Dietary Components
46. Soy Phytochemicals and Green Tea Inhibit Human Mammary Tumors in Mice
52. Fig. 8. 1a-OHase activity in primary cultures of normal, BPH, and
prostate cancer (CaP), and in human prostate cancer cell lines, DU 145,
PC-3, and LNCaP cells. Bars are standard deviations of three
determinations. The four primary prostate cultures were obtained from a
63-year-old Caucasian (P1), a 50-year-old African American (P2), a 67-
year-old Caucasian (P3) and a 53-year-old Caucasian (P4) with prostate
cancer. Three normal cultures were obtained from histologically normal
prostates of a 21-year-old and a 27-year-old donor and a 42-year-old
African American organ donor. BPH cultures were derived from open
prostatectomy specimens of a 58-year-old and a 60-year-old Caucasian.
(Reprinted from Whitlatch et al. 2002, with permission.) Whitlatch LW,
Young MV, Schwartz GG, Flanagan JN, Burnstein KL, Lokeshwar BL,
Rich ES, Holick MF, Chen TC. 25-Hydroxyvitamin D-1-alphahydroxylase
activity is diminished in human prostate cancer cells and is
enhanced by gene transfer. Journal of Steroid Biochemistry & Molecular
Fig. 8. 1a-OHase activity in primary cultures of normal, BPH, and
prostate cancer (CaP), and in human prostate cancer cell lines, DU 145,
PC-3, and LNCaP cells. Bars are standard deviations of three
determinations. The four primary prostate cultures were obtained from a
63-year-old Caucasian (P1), a 50-year-old African American (P2), a 67-
year-old Caucasian (P3) and a 53-year-old Caucasian (P4) with prostate
cancer. Three normal cultures were obtained from histologically normal
prostates of a 21-year-old and a 27-year-old donor and a 42-year-old
African American organ donor. BPH cultures were derived from open
prostatectomy specimens of a 58-year-old and a 60-year-old Caucasian.
(Reprinted from Whitlatch et al. 2002, with permission.) Whitlatch LW,
Young MV, Schwartz GG, Flanagan JN, Burnstein KL, Lokeshwar BL,
Rich ES, Holick MF, Chen TC. 25-Hydroxyvitamin D-1-alphahydroxylase
activity is diminished in human prostate cancer cells and is
enhanced by gene transfer. Journal of Steroid Biochemistry & Molecular
Biology, 81:135–140, 2002.
Fig. 8. 1a-OHase activity in primary cultures of normal, BPH, and
prostate cancer (CaP), and in human prostate cancer cell lines, DU 145,
PC-3, and LNCaP cells. Bars are standard deviations of three
determinations. The four primary prostate cultures were obtained from a
63-year-old Caucasian (P1), a 50-year-old African American (P2), a 67-
year-old Caucasian (P3) and a 53-year-old Caucasian (P4) with prostate
cancer. Three normal cultures were obtained from histologically normal
prostates of a 21-year-old and a 27-year-old donor and a 42-year-old
African American organ donor. BPH cultures were derived from open
prostatectomy specimens of a 58-year-old and a 60-year-old Caucasian.
(Reprinted from Whitlatch et al. 2002, with permission.) Whitlatch LW,
Young MV, Schwartz GG, Flanagan JN, Burnstein KL, Lokeshwar BL,
Rich ES, Holick MF, Chen TC. 25-Hydroxyvitamin D-1-alphahydroxylase
activity is diminished in human prostate cancer cells and is
enhanced by gene transfer. Journal of Steroid Biochemistry & Molecular
Fig. 8. 1a-OHase activity in primary cultures of normal, BPH, and
prostate cancer (CaP), and in human prostate cancer cell lines, DU 145,
PC-3, and LNCaP cells. Bars are standard deviations of three
determinations. The four primary prostate cultures were obtained from a
63-year-old Caucasian (P1), a 50-year-old African American (P2), a 67-
year-old Caucasian (P3) and a 53-year-old Caucasian (P4) with prostate
cancer. Three normal cultures were obtained from histologically normal
prostates of a 21-year-old and a 27-year-old donor and a 42-year-old
African American organ donor. BPH cultures were derived from open
prostatectomy specimens of a 58-year-old and a 60-year-old Caucasian.
(Reprinted from Whitlatch et al. 2002, with permission.) Whitlatch LW,
Young MV, Schwartz GG, Flanagan JN, Burnstein KL, Lokeshwar BL,
Rich ES, Holick MF, Chen TC. 25-Hydroxyvitamin D-1-alphahydroxylase
activity is diminished in human prostate cancer cells and is
enhanced by gene transfer. Journal of Steroid Biochemistry & Molecular
Biology, 81:135–140, 2002.
54. So how do these incredible achievements align themselves within a national nutrition strategy…
Basic research leading to ongoing studies SELECT WINS WHELSSo how do these incredible achievements align themselves within a national nutrition strategy…
Basic research leading to ongoing studies SELECT WINS WHELS
56. The Future of Nutrigenomics