- generating chemically reactive molecules that contain oxygen, which can damage DNA, proteins, and lipids (fats) through a process called oxidation
- Impairing the body’s ability to break down and absorb a variety of micro nutrients
- Increasing blood levels of estrogen, a sex hormone linked to the risk of breast cancer
- Containing a variety of carcinogenic contaminants such as nitrosamines, asbestos fibers, phenols, and hydrocarbons
Friday, October 30, 2015
Cancer-Alcohol Link, 4
Especially as holidays seasons approach, make
an informed choice based on the risks you are willing to take, as researchers
have identified
multiple ways that alcohol
may increase the risk of cancer,
including:
Thursday, October 29, 2015
Cancer-Alcohol Link, 3
In its Report on Carcinogens, the National Toxicology Program
of the US Department of Health and Human Services lists consumption of
alcoholic beverages as a known human carcinogen.
The research evidence indicates that the more alcohol a person
drinks—particularly the more alcohol a person drinks regularly over time—the
higher his or her risk of developing an alcohol-associated cancer. Epidemiologic research shows that people who use both alcohol and tobacco have much greater risks of developing cancers of the oral cavity, pharynx (throat), larynx, and esophagus than people who use either alcohol or tobacco alone. In fact, for oral and pharyngeal cancers, the risks associated with using both alcohol and tobacco are
multiplicative; that is, they are greater than would be expected from adding
the individual risks associated with the use of alcohol and tobacco together. More
tomorrow.
Wednesday, October 28, 2015
Cancer-Alcohol Link, 2
Studies
have also linked the consumption of alcohol with an increased risk of breast
cancer. The
risk of breast cancer was found to be higher across all levels of alcohol
intake. For every 10 grams of alcohol consumed per day (slightly less than one
drink or 3.5 ounces of wine), researchers observed a seven (7) percent increase
in the risk of breast cancer. The
Million Women Study in the United Kingdom, which included more than 28,000
women with breast cancer, provided a slightly higher estimate of breast-cancer
risk at low to moderate levels of alcohol consumption: every 10 grams of
alcohol consumed per day was associated with a twelve (12) percent increase in
the risk of cancer.
Cancers fall into the category of chronic diseases and chronic diseases all impact the brain in some way or another. More tomorrow.
Cancers fall into the category of chronic diseases and chronic diseases all impact the brain in some way or another. More tomorrow.
Tuesday, October 27, 2015
Cancer-Alcohol Link
Based on
extensive reviews of research studies have shown that there is a strong scientific consensus of an
association between
drinking alcohol and cancer. Clear patterns have emerged between alcohol consumption
and the development of cancers including:
· head and neck
· Esophageal
· Liver
· Breast cancer
· Colorectal cancer - Alcohol consumption is associated with a modestly increased risk of cancers of the colon and rectum. A meta-analysis of 57 cohort and case-control studies that examined the association between alcohol consumption and colorectal cancer risk found that for every 10 grams of alcohol consumed per day (slightly less than one drink or 3.5 ounces of wine), there was a seven (7) percent increase in the risk of colorectal cancer. More tomorrow.
· head and neck
· Esophageal
· Liver
· Breast cancer
· Colorectal cancer - Alcohol consumption is associated with a modestly increased risk of cancers of the colon and rectum. A meta-analysis of 57 cohort and case-control studies that examined the association between alcohol consumption and colorectal cancer risk found that for every 10 grams of alcohol consumed per day (slightly less than one drink or 3.5 ounces of wine), there was a seven (7) percent increase in the risk of colorectal cancer. More tomorrow.
Monday, October 26, 2015
Cancer and Wine
Studies suggest
that the resveratrol contained in red wines may be protective against some
forms of heart disease. Unless
it’s a non-alcoholic red wine, getting resveratrol from grapes, raspberries,
and peanuts might be a preferred option since studies now indicate that ingesting alcohol increases one’s risk
for cancer. Dietary Guidelines for Americans 2010 defines moderate alcohol drinking
as up to one drink per day for women and up to two drinks per day for men. What
does a ‘drink’ mean? According to the National Institute on Alcohol Abuse and Alcoholism, a standard alcoholic drink in the
United States contains 14.0 grams (0.6 ounces) of pure alcohol. Generally, this
amount of pure alcohol is found in:
5 ounces of wine
1.5 ounces or a ‘shot’ of 80-proof liquor
12 ounces
of beer
8 ounces
of malt liquor5 ounces of wine
1.5 ounces or a ‘shot’ of 80-proof liquor
Friday, October 23, 2015
Autism and Brain Seizures, 2
Using
the new-generation of EEG
technology developed by Harvard University, Aditi Shankardass PhD
reports that nearly 50% of
the children previously diagnosed with autism are found to be suffering from
some degree of brain seizure activity
that is undetectable to the eye. In some cases, these seizures are the cause of the child's autism-like symptoms.
In other cases, these seizures are not causal, but coexistent to autism and are
exacerbating the child's symptoms. And in a few cases, the seizures are mild
and possibly unrelated to, or a consequence of, the child's symptoms. In the cases
where these seizures are the cause of the symptoms, once the seizures have been
detected and treated, the level and speed of recovery in the children has been
remarkable. Dr. Shankardass indicates that “these EEG scans are enabling a more
accurate diagnoses and more targeted treatments… hundreds of children, who were
undiagnosed or misdiagnosed by the system, are realizing their full potential
while there their brains can still recover.”
Thursday, October 22, 2015
Autism and Brain Seizures
Almost everywhere I go lately people are asking
about autism spectrum disorders, their perceived increase, and whether any
diagnostic tests other than behavioral observations exist. You may be
interested in watching the TED India 2009 presentation by Aditi
Shankardass PhD. She specializes in a groundbreaking
Electroencephalogram or EEG diagnostic technology developed by Harvard
University, which records and analyses the brain’s electrical activity in real
time. This allows researchers to watch the child's brain as it performs various
functions, detecting even the slightest abnormalities in these functions, and
providing a more accurate and comprehensive clinical picture of the child's
brain abnormalities than is available from primarily behavioral observations.
According to Dr. Shankardass, results from these EEGs have been startling. More
tomorrow.
Wednesday, October 21, 2015
Brain Proverbs, 2
Italian:
- Everyone thinks he has more than his share of brain.
- Every one gives himself credit for more brains than he has, and less money.
- All the brains are not in one head..
- Half a brain is enough for him who says little
- The world is governed with little brains.
- Some many heads, so many brains.
Norwegian:
- Ask for advice, and then use your brain.
Tuesday, October 20, 2015
Brain Proverbs
I thought it
was time for a change of pace so I looked up ‘Brain Proverbs’ on the Internet.
Who knew? Several countries tout proverbs relating to the brain. Here are a
few.
American:
- We need brain more than belly food.
- Brain is worth more than brawn.
- Where there are no brains, there is no feeling.
- The less the brains, the bigger the hat.
- You can borrow brains, but you can’t borrow character.
Dutch
- A handful of patience is worth a bushel of brains.
Monday, October 19, 2015
Nutrigenomics
What you
eat and drink, can affect not only your own health but that of your
descendants. A new field of study, ‘Nutrigenomics,’ studies the effect of foods
on gene expression. Food ‘talks’ to your genes and they express themselves
(activate or turn off) based on those conversations. Foods not only carry
information to your genes, but their instructions may increase or decrease your
risk for specific diseases. These nutritional signals may affect processes that
include cholesterol levels, hormone regulation, aging, and weight fluctuations.
Your biological system may respond to processed foods as to foreign invaders
rather than as food, which initiates an inflammatory response. This type of
chronic inflammation is now a recognized precursor to a variety of serious
illnesses. (Adelle Larec, How to
Reprogram Your DNA for Optimum Health.)
Friday, October 16, 2015
Your Virome, 3
Viruses
can kill the organism they invade; eventually disappear (the body kills the
virus or there are so few new organisms to infect that the virus tends to
disappear; or the virus and its host organisms learn to co-exist. Viruses are
able to help spread beneficial bacterial mutations quickly throughout the
microbiome and beyond. A 2013 study of the human gut virome tracked the
identities, abundance, and mutations of native viruses in one person over 2.5
years. There were 478 relatively abundant viruses, most of which had not been
previously identified. A majority of the viruses were bacteriophage, the type
that infects bacteria. Eighty percent of the viruses persisted for the entire
2.5 years, but they all mutated: some slowly, some quickly, and some so fast
that the virus would be deemed a new species within the 2.5 years. Talk about a
miniature micro-star wars . . .
(Enriques, Juan, and Steve Gullans, PhD. Evolving Ourselves. Pg 101-103. NY:Current-Penguin
Group, 2015)
Thursday, October 15, 2015
Your Virome, 2
When you
breathe in viruses
after someone sneezes uncovered, the viruses enter your cells, reproduce,
release trillions of copies of itself, and proceed to take over other cell.
Sometimes viral DNA simply embeds itself in your own human DNA, where it can
lie dormant or sometimes come back to life when you least want it, as occurs
with recurring cold sores, shingles from a long-past chicken pox, and even some
cancers, especially if you immune system is weakened. This is what can happen
with Kaposi's sarcoma in immunodeficient patients infected with HIV. Sometimes,
a viral code can end up in the DNA in your sperm or eggs, which then gets
passed on to future generations. Viruses are champions of DNA mutation, able to
carry, exchange, and modify the DNA between cells or from one species to
another (e.g., the spread of antibacterial-resistance genes from one bacterial
organism to its own species and then on to other bacteria types). More
tomorrow.
Wednesday, October 14, 2015
Your Virome
The
human virome is essentially your fourth genome. It interacts directly and
indirectly with your other three genomes. Your virome involves the trillions of viruses that are believed
to far outnumber both the cells and the microbes within your body. According to
authors Enriques and Gullans, there are an estimated 10 billion bacteria in a
liter of seawater, there are also 100 billion viruses playing with them. Even
more may live inside the soil and dirt that cover your hands. Viruses, and
there are at least ten times more of them inside you at any given time than
there are bacteria. They live in your intestines, mouths, lungs, skin, and
blood, continuously shuttling in and out of your body. Sneeze once, uncovered,
and 40,000 droplets, each containing up to 200 million individual viruses, fly
across the room at speeds exceeding 200 miles per hour. More tomorrow.
Tuesday, October 13, 2015
Resistant Starch or RS
Speaking of the human Microbiome, have you heard
about Resistant Starch? Prebiotics are generally classified into three different
types, one of which is Resistant Starch or RS—which is emerging as uniquely
beneficial to help protect against colorectal cancer. Prebiotics were first identified and named by Marcel Roberfroid in 1995
and they differ from probiotics. Typically,
a probiotic is a product or preparation that is taken to introduce live strains
of bacteria into one’s Gastrointestinal Tract. Yogurt is one example.
Prebiotics, on the other hand, are nondigestible plant fibers that are called resistant
because they pass through the small intestine undigested and reach the large
intestine (or colon or bowel) intact. Many strains of beneficial bacteria that
live in the colon feed on prebiotics. Rather than being live bacteria as in
probiotics, think of prebiotics as food and fertilizer for the good bacteria
that are already living in your GI Tract. They also are believed to stifle
production of undesirable disease-causing bacteria—all of which impacts your
Microbiome.
Monday, October 12, 2015
Your Microbiome
The human microbiome consists of about 100 trillion bacteria and
microbial cells—give or take a few trillion—that outnumber human cells something
like ten to one. They can significantly affect human physiology. Changes
in one’s microbiome can trigger changes in many cellular activities that can be
beneficial or contribute to disease. The results of a small study published in Nature revealed that bacteria living in the gastrointestinal
system are surprisingly responsive to change in what a person eats. Moreover,
these changes in one’s microbiome can happen incredibly fast—within three or
four days of a big shift in what you eat. Lawrence David, assistant professor
at the Duke Institute for Genome Sciences and Policy and one of the study’s
authors, evaluated ten participants: some with plant-based diet (avoiding
animal products) and others with an animal-based diet (eating milk, cheese, and
meat). In the subjects eating animal products the researchers saw a significant
increase in Bilophila wadsworthia—reportedly the
third most common anaerobic bacteria recovered from patients with perforated
and gangrenous appendicitis.
Friday, October 9, 2015
Paternal Contribution
It surprises
some to find out that their father’s habits can impact his children and
grandchildren, as well. The ALSPAC study showed that males who started smoking
before age 11 (just before entering puberty and before they were producing
sperm) influenced the health of their sons. By age nine, their boys had
significantly higher body mass indexes (BMI). This considerably increased their
risk of obesity and other serious health issues including a shortened lifespan.
Since none of us influences what our parents and grandparents do or even what
happens during our own gestation and for the first few years of life, some may
feel hopeless. Nothing could be further from the truth. The science of
epigenetics is hopeful. Dawson Church, PhD, author of The Genie in Your Genes, points out that epigenetics potentially
can revolutionize your own health through the lifestyle you choose to live and
its impact on gene suppression and/or activation. Note: After this epigenome
digression (I find it completely fascinating!), next week I’ll get back to another
layer that impacts your genome—your microbiome.
Thursday, October 8, 2015
Maternal Contribution
Scientists now understand that lifestyle choices are
particularly important in terms of the impact to the fetus during gestation. A
pregnant mother’s choices (e.g., smoking, drinking alcohol, eating habits and
level of nutrition, exercise) can have a huge impact on her unborn child.
Babies often like the foods their mother ate during pregnancy. The amount and
type of stressors play a part, too. The children of pregnant women who saw the
9-11 World Trade catastrophe were found to have higher levels of cortisol. PTSD
may even be transmitted from one generation to the next. According to Debra
Bangasser, PhD, a child who experienced a stressful pregnancy
may require higher levels of stress just to activate the release of cortisol.
Waiting to do things until the very last minute may be indicative of this. For
a female fetus, a stressful pregnancy (and/or a stressful first two years of
life) can actually result in the female developing a more reactive brain and
nervous system, which can increase her reactivity to stress over a lifetime.
Paternal Contribution tomorrow.
Wednesday, October 7, 2015
Epigenetic Metaphor
This description by David Shenk may help you better understand the impact
of epigenetics on genetics. Genes are not like robot actors who always say the
same lines in the exact same way. It turns out that they interact with their
surroundings and can say different things depending on whom they are talking
to. This obliterates the long-standing metaphor of genes as blueprints with
elaborate predesigned instructions for eye color, thumb size, mathematical
quickness, musical sensitivity, etc. Now we can come up with a more accurate metaphor.
Rather than finished blueprints, genes—all 22,000 of them—are more like volume knobs
and switches. Think of a giant control board inside every cell of your body.
Many of those knobs and switches can be turned up/down/on/off at any time—by another
gene or by any miniscule environmental input. This flipping and turning takes
place constantly. It begins a moment a child is conceived and doesn’t stop
until she takes her last breath. Rather than giving us hardwired instructions
on how a trait must be expressed, this process of gene-environment interaction
drives a unique developmental path for every unique individual.
(Shenk, David. The
Genius in All of Us. P 16. NY:Doubleday, 2010)
Tuesday, October 6, 2015
Epigenome
Your
Epigenome involves the complex environment surrounding your genes as well as
the cellular memories filed on protein strands in the nucleus of cells. Not all
cells have a nucleus, red blood cells, for example, although most cells do.
Bruce Lipton, PhD, is touted as the foremost authority on the link between your
emotions and genetic expression. Metaphorically,
Dr. Lipton compares the outer layer of the cell (epigene) to a computer chip:
DNA represents your genetic hardware; epigenes represent your software.
Epigenes convey information about environmental factors that influence both the
behavior and the physiology of the cell. Because molecular pathways connect the
mind and body, retraining your thinking can change your body. Thus, your
thoughts, attitudes, and perceptions are the true keys to optimal wellness. These three additional layers,
especially the epigenome, help to explain the reason that 6 billion plus people
on this planet, who all differ, do so within a collection of 25,000-30,000
genes. Dr. Lipton’s research helps explain this. Your ‘environment’ includes
everything from your attitudes, mindset, thought patterns, self-talk, beliefs,
habits, and addictive behaviors. It involves whether or not you are living a
Longevity Lifestyle and everything from what you eat and drink to your sleep
and exercise patterns, and ad infinitum.
Monday, October 5, 2015
Genome Plus Three
Your genome, 46 chromosomes and the 25,000-30,000
genes on them, was once thought primarily to be in charge of determining your
development, including your height, skin hue, eye color, and on and on. In
their book Evolving Ourselves, authors
Juan Enriques and steve Gullans, PhD, describe three additional layers that
have a profound impact on how your genes express themselves and how your brain
and body develop and function. These layers are:
·
Epigenome: the complex array of matter surrounding your genes
·
Microbiome: the trillions of bacteria in your body
·
Virome: trillions of viruses that far outnumber both your body’s
cells and microbes
Friday, October 2, 2015
The 1% of Your DNA
Researchers say
that only 99% of DNA is contained within your chromosomes and the genes
(letters spelling out words, phrases, and sentences). Where is the remaining
1%? Turns out it is in your mitochondria: tiny
rod-shaped organelles—power generators (energy factories) inside the cell—that
convert oxygen and nutrients into adenosine triphosphate (ATP). This is the
chemical energy "currency" of the cell that powers all its metabolic
processes. If it stops working properly you are out of energy. Period. Unlike
chromosomal DNA that is inherited from both parents, you get all your
mitochondrial DNA from your mother. What happens when mitochondrial DNA
mutates? More next time.
Thursday, October 1, 2015
Secret DNA Language
Work
by Dr. John Stamatoyannopoulos has discovered a secret language, if you will. About
15% of DNA’s 64-letter alphabet (codons) are dual-use codons (duons) that
simultaneously specify both amino acids and transcription factor (TF) sequences.
This means that many DNA changes that appear to alter protein sequences may
actually cause disease by disrupting gene control programs or even both
mechanisms simultaneously. For example, (e.g., sickle cell anemia can be caused
by a change in one single gene). If you think of DNA as a language with 64
letters in its alphabet, it makes sense (metaphorically) that if one of the
words is misspelled, the meaning to the phrase or sentence can be completely
changed. Imagine you were writing a paper for school and instead of using the
word ‘mine’ your used the word ‘mime.’ That ‘mistake’ could give an entirely
different meaning to the gist of your paper and could result in the professor
giving you a lower grade. More tomorrow.
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