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Junk DNA can rise from the dead and haunt you

By | August 20, 2010, 1:34 PM PDT

Scientists have found that junk DNA can come back to life and can cause disease.

As it turns out, a region of the genome — that is hundreds of thousands of years old, mind you — can bring on trouble.

Soon after the zombie gene wakes up, people can no longer smile and their upper body muscles begin to waste away.

Those victims suffer from facioscapulohumeral muscular dystrophy (FSHD), one of the more common forms of the genetic disease.

1 in 20,000 people suffer from FSHD — what makes it different than diseases like diabetes is that inheriting the gene means the person will one day get the genetic disease.

While scientists knew genetics was to blame, they didn’t exactly know why and how it caused disease. Now they know, zombies are to blame.

The researchers published their results in Science.

There’s a certain rhythm to this madness. To cause disease, the gene needs to be repeated a number of times and has to have the right sequence. The trouble gene is found on chromosome 4 (which is a region scientists eyed for several decades).

If the zombie gene is repeated more than 10 times, the person will not develop FSHD. Researchers believe the surplus copies change the structure of the chromosome so the zombie gene can’t attack. Otherwise, the gene (DUX4) is allowed to be made and becomes toxic to the muscle cells.

This finding fundamentally changes how geneticists think about simple genetic diseases. It’s clear that even though FSHD was thought to be a simple disease because having the gene meant the person would definitely get the disease, it’s actually much more complex than that.

In the future, researchers could knock out this dead gene and develop new treatments.

Scientists believe they will discover that other diseases will have similar causes.

Geneticist Dr. Francis Collins told The New York Times, “the first law of the genome is that anything that can go wrong, will.”

via The New York Times

Photo: ynse/ flickr

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Boonsri Dickinson

About Boonsri Dickinson

Boonsri Dickinson was a contributing editor for SmartPlanet from 2010 to 2012.

Boonsri Dickinson

Boonsri Dickinson

Contributing Editor, Science

Boonsri Dickinson is a freelance journalist based in San Francisco. She has written for Discover, The Huffington Post, Forbes, Nature Biotech, Technewsdaily.com, Techstartups.com and AOL. She's currently a reporter for Business Insider. She holds degrees from the University of Florida and the University of Colorado at Boulder.

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Boonsri Dickinson

Boonsri Dickinson

In the unlikely event that Boonsri has a professional or financial relationship with a company she writes about, it will be prominently disclosed.

She writes for SmartPlanet and is not an employee of CBS.

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RE: Junk DNA can rise from the dead and haunt you
The "Junk DNA" misnomer was put forward as a "theory" (though
totally wrong, and suspect after its first utterance) by Susumu
Ohno (1972), an otherwise serious scientist; see "So much 'Junk'
DNA in our genome" (full text in my junkdna.com domain). He
mistakenly argued that the non-genic sequences are in the
genome "for the importance of doing nothing" (p. 367).

It was only later that this catastrophic misnomer became widely
accepted at face value - as an excuse for the establishment to
(BTW negligently) ignore 98.7% of (human) DNA - while millions
if not hundreds of millions were (and still are) dying of "Junk DNA
diseases".

"The Principle of Recursive Genome Function" (2008), by
retiring both the "Junk DNA" and "Central Dogma" obsolete
axioms became the first full genome (hologenome) theory based
on sound genome informatics, sweeping away science-nonsense
that retarded genomics for over half a Century (starting from
Crick's notion in 1956, that he dared to call "Central Dogma",
that information "never" recurses from either RNA or from
PROTEINS to DNA).

Upon conclusion of ENCODE (2007) Francis Collins was the one
to issue a public call "the scientific community will have to re-
think long-held beliefs". Some lucky few did not have to re-think
as they never believed the two false axioms in the first place -
but now we have (really, not the first...) experimental evidence as
a de facto basis to discard wrong assumptions that were totally
absurd from the viewpoint of genome informatics. 1.3% of human
DNA (in fact, much less since "genes" may contain a big majority
of non-coding introns) is simply not enough information to
govern growth of as complex organisms as humans.

FractoGene (2002) clinched it in one year after it was
established that the expected 140-300,000 "genes" were
nowhere to be found by The Human Genome Project. Today,
"recursive genome function" prevails with close to 200,000 hits in
Google... "Fractal defects" such as reported, with the recursion
derailed and/or not supported with enough auxiliary information
by sufficient number of recursion not only "have been expected",
but theoretically predicted. - Pellionisz_at_JunkDNA.com
Posted by Pellionisz
20th Aug 2010
0 Votes
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RE: Junk DNA can rise from the dead and haunt you
Dear Pellionisz; excellent post. I have not heard it put quite that way but some of us borderline science junkies have not accepted the junk dna designation nor could we understand why anyone would accept it.

I will mention your site to some of my friends and see you there.
Posted by IMWeira
23rd Aug 2010
0 Votes
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Interesting.
@Pellionisz, thanks for that info. Very interesting reading.
Posted by JohnMcGrew@...
23rd Aug 2010
0 Votes
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What Pellionisz said...
Is far better put than I've heard before.

But it is a symptom of the way we do research on nearly everything--if it's not seen to be part of the current problem, we discard it...only later finding that it is causing other problems or preventing them.

Part of this in medicine is the practice of studying diseases (disorders) hwile ignoring the study of properly functioning systems.

We've spend many many decades studying disorders to find cause and cures--at the expense of ignoring the 'benign' organisms...many of which, once examined, turned out to be essential for our health--not merely not causing problems.

We finance medical research by popularity--rather than spending our time and energy where we as a society will get the most return for the effort, we routinely spend money based upon the ability to raise funding--filling the world with images of dying children and causing the public to mis-perceive the actual risk/benefit ratios.

Investing by emotion rather than analysis, while extremely human, is counter-productive.We end up spending money to treat 'horrific' problems, rather than the problems which kill or disable the most people.

The number one killer in the world today is heart disease and related circulatory issues--yet I routinely receive pleas for funding for many other conditions which affect far fewer people, and far too often those making the appeal believe that they are actually working to find a cure for something which is kills "the most."

Much unexpressed DNA is like that in the article--old ills piggyback ridding upon our genes.

Another large group are genes which are expressed only under certain circumstances

In the past couple decades we've learned that such gene expression can continue generations after the triggering circumstance has disappeared from the environment.

With the discovery of what crystallized DNA looks like decades ago, the public assumed that it meant we understood DNA. This has happened anew with each new advance.

The latest, the mapping of the genome is seen by the public as an end--that mapping means understanding.

In fact, each major step we make is merely the beginning of understanding--often forcing us to toss out our favorite theories of how things work.

In a world where understanding changes rapidly, it is every bit as valuable to be able to 'unlearn' and let go of previously loved theories as new data arises.

The one advantage that the scientific method has over the dogmatic methods of our more distant past, is the recognition that knowledge is not static.
Posted by wizoddg
23rd Aug 2010
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RE: Junk DNA can rise from the dead and haunt you
This reminds me of the mindblowing african theory,where everyone is really black,and white pigmentation is only due to sustained exposure to a weaker sun in the northern hemisphere.And if there is enough migration from africa over a short space of time,catastophic things will happen the passage of body fluids,and coughing fits etc.,it will re-enforce basically african deseases to the point of huge epidemics,that will be uncontrolable.
Posted by afalouth@...
26th Aug 2010
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No such thing as "Junk" DNA
DNA is a very complex molecule. It bends. Such bending can expose, or hide, portions of the code from being expressed, to create RNA sequences. Each additional or subtractive codon changes the shape of the molecule, changing how it bends.

No hidden code, no "junk" DNA, was ever a pre-reproductive killer; otherwise it would have wiped itself from the gene pool in that generation. What you had was the retention of slow killers, just slow enough to allow the organism to reproduce itself before dying. Subtraction of the code would have removed it the genome. Addition of codons to the molecule have obviously hid it from expression; and still lurk in the chromosome, waiting for a subtraction to re-expose it.

What is of great interest is how the addition or subtraction of a single codon changes the shape of the entire molecule, and how it will affect expression of other traits that are very distant from the actual site of the change.
Posted by Dr_Zinj
30th Aug 2010
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