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FOOD, MIND

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The cause for any illness may be a result of a combination of events (multi-factorial) ... predisposition to diabetes, obesity and cancer negated by maternal diet ... – PowerPoint PPT presentation

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Title: FOOD, MIND


1
FOOD, MIND BODY
  • WE ARE WHAT WE EAT

2
FOOD,MIND BODY
  • The cause for any illness may be a result of a
    combination of events (multi-factorial)
  • Genetic predisposition
  • Acquired due to system damage or malfunction
  • Stress related
  • Deficiency triggered
  • Iatrogenic

3
FOOD,MIND BODY
  • Super specialisation has resulted in more small
    picture evaluation loosing out on holistic
    appreciation/ approach.
  • The Big picture association takes into account
    what small pictures are contributing however the
    small picture may not represent the outcome of
    the big picture.

4
FOOD,MIND BODY
  • MOTHERS DIET CAN PERMANENTLY ALTER GENE
    FUNCTIONALITY WITHOUT ALTERING THE GENE ITSELF.
  • EPIGENETICS STUDY SHOWS HOW DIET,STRESS AND
    MATERNAL NUTRITION CAN CHANGE GENE FUNCTION
  • Ref. Aug1 2003 Molecular and Cellular Biology

5
FOOD,MIND BODY
  • Gene effect
  • Abnormal mutation 2 to infection, radiation,
    metabolic dysfunctions, idiopathic
  • Methylation a process in which a gene
    expression can be turned up or down depending
    on what part of genetic machinery and how much of
    it is around.

6
FOOD,MIND BODY
  • Methylation a quartet of atoms called methyl
    group attaches to a gene at a specific point and
    induces changes in the way the gene is expressed.
  • This process often inactivates genes not needed
    by a cell. The genes on one of the two X
    chromosomes in each female cell are silenced by
    methylation

7
FOOD,MIND BODY
  • Methyl groups also inactivate remnants of past
    viral infections, called transposons.
  • 40 of the human genome is made of parasitic
    transposons.

8
FOOD,MIND BODY
  • Methyl groups and other small molecules may
    sometimes attach to certain spots on chromosomes,
    helping to relax tightly coiled strands of DNA so
    that genes can be expressed.
  • Methyl groups play critical role in controlling
    genes involved in prenatal postnatal
    development including some 80 genes inherited
    from only one parent. Because of the so called
    imprinted genes must be methylated to function,
    they are vulnerable to diet and other
    environmental factors.

9
FOOD,MIND BODY
  • Fleeting exposure to anything that influences
    methylation patterns during development can
    change the animal or person for a lifetime.
  • Methyl groups are entirely derived from the foods
    that people eat.
  • The effects may be good as well as bad.
  • Therefore it is crucial that maternal diet during
    pregnancy is given serious consideration.

10
FOOD,MIND BODY
  • In an experiment a mouse was chosen that happened
    to have a transposon right next to a gene that
    codes for coat colour.
  • The transposon induces a gene to overproduce a
    protein that turns the mice pure yellow or
    mottled yellow brown. The protein also blocked
    a feeding control centre in the brain. Yellow
    mice therefore overeat and tend to develop
    diabetes and cancer.

11
FOOD,MIND BODY
  • The mice were then fed with a rich supply of
    methyl groups in supplements of B12, folic acid,
    choline and beaine from sugar beets just before
    they got pregnant and through the time of weaning
    their pups.
  • The methyl groups silenced the transposon, which
    in turn affected the coat colour gene, had an
    inherited predisposition to diabetes, obesity and
    cancer negated by maternal diet
  • RefDr. Jirtle,Randy, Prof. Radiation
    Oncology,Molecular and Cellular Biology 2003, Aug1

12
FOOD,MIND BODY
  • However the exact mechanism of which ingredient
    or methyl rich supplement is helpful or which may
    be harmful is still not determinable.
  • E.g.. We know that folic acid supplement is
    helpful in preventing spina bifida ( which is on
    the decline) but there is worry that it may be
    associated with autism and obesity (which are on
    the rise)

13
FOOD,MIND BODY
  • Methylation may hold a key to gene expression and
    disease expression.
  • Abnormal methylation are hallmarks of most
    cancers.
  • There is an increasing interest in this area in
    Psychiatry in areas such as schizophrenia.
  • Dr.Laird, Peter, Assoc. Prof. Biochemistry and
    Molecular biology, University of Southern
    California School of Medicine
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