Princeton Team Casts More Doubt On Arsenic DNA Claims
An anonymous reader writes "A team of researchers reports they can't reproduce the most important claim from 2010's controversial 'arsenic bacteria' paper — they find no arsenic in the bug's DNA. Meanwhile, other scientists are looking at different aspects of the bug and at arsenic in biology in general."
I never understood how some people were so incredibly aggressively against the team that made the claim. This is how science works!
How am I supposed to take a summary seriously when it refers to bacteria as a "bug"?
/. discovered a way to make people RTFA!!!
Did they check the elderberry wine?
How am I supposed to take a summary seriously when it refers to bacteria as a "bug"?
While this is seen as probably an oversimplification of describing bacteria, viruses, etc. there are probably a lot of dictionary entries backing this up like the fifth one in Wiktionary: "A contagious illness; a bacterium or virus causing it." You also had media in the late nineties using this virtually everywhere. See this BBC article for an example. The fact that researchers themselves have used phrases like Super Bug to describe resistant bacteria to lay people probably doesn't help. English is viscous. Deal with it.
My work here is dung.
There's a bug in the summary.
They've already hustled the investors.
I swear to God...I swear to God! That is NOT how you treat your human!
it's not DNA. DNA is a specific chemical compound. It sounds like these people found some arsenic in the bacteria and decided, with nothing to base it on, that it was part of the organism's DNA.
It seems we are seeing a lot more of these extraordinary claims and studies become challenged recently ranging from cancer research to climate change denialists skirting the peer review process:
I think money plays a huge part in some of this. Think of the falsified research on the health benefits of Resveratrol and how those studies helped form a legitimacy around diet fad drugs that account for a billion dollar industry. It is an extremely lucrative industry and some of that money may end up funding future studies.
The same thing can be said about the corrupting influence of corporate money in funding climate change denial studies. If as a scientist, my research is being funded by oil companies who clearly want the studies to find a certain conclusion, you would be driving a stake in the heart of your career if you come to any other conclusion than climate change being unclear.
Other times there is enormous competition in research and a successful groundbreaking study will sometimes launch a lucrative career. The temptation can be great to make grandoise claims to jumpstart a career because by the time peer review trashes it, you may have already secured a cushy grant.
Its rather amazing to see the glaring headline "Retraction" in the letters section of these distinguished journals on a regular basis now. A dozen major scientists have written Science asking to retract the arsenic life paper. The policy is for authors to request retraction unless its a really extreme case like the XMRV retraction a few weeks ago (principal investigator in jail and authors suing each other). Most authors are honest and sometimes realize they've rushed to print without reproducible results. Then they'll retract.
I dont think there is anything horribly wrong with this process. Labs do rush to print for fame and priority. Readers want to see the newest results. There are many more papers now than decades ago. Reviewers dont have time to replicate the results during the review span of time and have to use their best judgment. Mistakes happen and are corrected. This is merely how good science works.
"Arsenic and Old Lakes"
That's my jaw dislocating as a result of yawning.
I do not believe in karma. "Funny"=-6. Do good and forbid evil. Yours, Oft-Offtopic Flamebaiting Troll.
If the "DNA" contains arsenic then it's not DNA. DNA is a specific chemical compound.
A quick reading of the definition of chemical compound and DNA doesn't even come close to that definition. The ratios of what's in DNA can vary drastically. Still, anyone with enough knowledge to care knows exactly what it means when someone says there is arsenic in the DNA.
It sounds like these people found some arsenic in the bacteria and decided, with nothing to base it on, that it was part of the organism's DNA.
Pretty close. They had a little more evidence, but not anything convincing.
Nature a "distinguished journal"?!?! Any scientist of worth knows it is a rag. A biology rag. They'll print anything.
Just check out the stories on New(pseudo)scientist - a slashdot linkspam favorite - a large number are taken from "Nature" - very few from real journals like Acta crystallographica or The Analyst.
Reviewers were never expected to reproduce results, only to know their shit and see the weaknesses in submitted material.
You see, if you have a biologist reviewing a submission to Nature by another biologist what you have is: the blind leading the blind. Generalist journals are not to be trusted, in large part due to the inability to provide adequate peer review.
Scientific journals must be very narrow in their scope to facilitate reliable peer review.
Constantly the media and others refer to biologists and doctors as scientists. They are not scientists! They are giving science a bad name.