Researchers Discover A Surprising New Role for Lungs: Making Blood (ucsf.edu) 60
schwit1 quotes ScienceAlert:
In experiments involving mice, the team found that lungs produce more than 10 million platelets (tiny blood cells) per hour, equating to the majority of platelets in the animals' circulation. This goes against the decades-long assumption that bone marrow produces all of our blood components. Researchers from the University of California, San Francisco also discovered a previously unknown pool of blood stem cells that makes this happen inside the lung tissue -- cells that were incorrectly assumed to mainly reside in bone marrow. "This finding definitely suggests a more sophisticated view of the lungs -- that they're not just for respiration, but also a key partner in formation of crucial aspects of the blood," says one of the researchers, Mark R. Looney.
The platelet-producing cells actually migrate from the bone marrow to the lungs.
The platelet-producing cells actually migrate from the bone marrow to the lungs.
Re: Researchers from UC? (Score:1)
Those new guys from India are already making breakthroughs! Cheaper and smarter!!!
Re: Researchers from UC? (Score:1)
No one has ever said that.
Don't smoke (Score:1)
This is another reason not to smoke.
Re: (Score:2, Interesting)
Actually unfiltered joint smoke has the best THC/tar ratio. Bong smoke is worse than unfiltered joint smoke but better than filtered joint smoke. The trouble is, anything that's good at filtering out tar from the smoke will be even better at filtering out THC.
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The stuff about tar is just moronic tobacco addicts trying to justify.
In the 1970s and `80s, they advertised lots of "light" cigarettes that had lower tar. They really did have lower tar. They had slightly higher nicotine in most cases. Cancer didn't go down for people who smoked the "light" cigarettes, it went up. Why? Because nicotine is a carcinogen at any dose, and the tar isn't.
People who abuse nicotine patches have increased skin cancer at the site of the patch. There is no tar in the patch. Why? Beca
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...but in far lower volumes. Great job with the disingenuousness.
Re:Don't smoke (Score:4, Insightful)
Burning organic matter of any kind, no matter the source, causes lung cancer, even if it is inhaling from burning fucking oranges and ordinary grass.
This is a general rule proven by chemistry, science, and medicine, and weed being organic is part of it. So no, there is no exception or excuse.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3875302/table/T1/
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Weed is very healthy, tobacco is not.
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There is a lack of scientific / medical studies linking weed to lung cancer.
When reading about it in these terms this made me reconsider the harmlessness of weed. This might be based on the fact there's no study with 500 or 1000 persons (even if half is the control group) where people were smoking two or three joints a day (or more, whatever) over two or three decades (whatever). If so healthiness of weed might be a very weak proposition.
Albeit nicotine might cause other problems, but the breath and lungs a
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This might be based on the fact there's no study with 500 or 1000 persons (even if half is the control group) where people were smoking two or three joints a day (or more, whatever) over two or three decades (whatever).
Ignorance of the results of such studies does not imply that they do not exist. Go ye out on a journey to the interwebs and seek for studies!
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Burning organic matter of any kind, no matter the source, causes lung cancer, even if it is inhaling from burning fucking oranges and ordinary grass.
This is a general rule proven by chemistry, science, and medicine, and weed being organic is part of it. So no, there is no exception or excuse.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3875302/table/T1/
The main difference being the narcotic payload.
Nicotene has a positive feedback loop (stimulate helps you be productive so it doesn't interfear with your ability to buy smokes, and is highly addictive and habit forming) while TCH has a negative one (habit forming but not terribly addictive, and reduces your productivity so needing to make a living to afford Cheetos and pot will tend to reduce your consumption).
Bottom line, a typical person smokes more tobacco than pot, so the cumulative long term health ri
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Oranges have hardcore chemicals in the peel for microbial chemical warfare, so of course their smoke is very toxic. Using examples like this to establish a claimed universal fact is really lame.
One thing that medicine does know; smoke inhalation is unhealthy.
Another thing that medicine does know: different types of smoke have different effects. They're not all the same.
I Wonder (Score:1)
I wonder if this is where HIV hides when people who are HIV+ are on meds and the virus is undetectable. I don't really know anything, but it was my first thought.
Re:I Wonder (Score:4, Informative)
I wonder if this is where HIV hides when people who are HIV+ are on meds and the virus is undetectable. I don't really know anything, but it was my first thought.
FWIW, researcher have already discovered that HIV hides in the lymph nodes... But nice try.
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Humbling (Score:5, Insightful)
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Well, duh.
Certain Platelets, and certain types of T-Cells, have long been known as originating in the Differentiating Cells in the Lungs. (The Differentiating bit pretty much explains Lung Cancer, when it goes wrong.) I learned of this some three decades back.
Just why is this now News?
(Excuse my English. Is "Differentiating" not the right word?)
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"Are you aware of the concept of the Singularity?"
Well, duh.
If I were you, I wouldn't spend too much time on such concepts as "Singularities".
If I were you...
E. M. Forster once wrote a short story called "The Machine Stops". Let me check now... 1909. 1909 was when he wrote it.
You really should dig it up and read it. It will utterly blow up your mind, for something written in nineteen-zero-nine. (Is nineteen-zed-nine still acceptable?)
"It shouldn't be surprising if scientists rediscovers things over and over
Off topic (Score:2)
I would suggest "nineteen-oh-nine"...and "zed" (or "zee") would be used to represent "z".
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Yes it was known the lungs made platelets before. What's new is that the lungs make most of the platelets rather than just a bit.
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From 2000 (Score:5, Informative)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1850212/
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Still though, it shows the possibility that medicine has become fixated on 'direct proof' and has narrowed down their perception in proportion to this and as a result throws out a lot of good information.
This seems to speak of a fundamental flaw.
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Sounds like something hit a nerve... Oh wait you don't have any being a troll.
What?!? We DON'T know everything?? (Score:5, Insightful)
THAT's what irks me about that line. If we know everything, if it's all actually settled and done with (except for a few minor lose ends), then we need no more scientists or research -- DO WE? SETTLED science then just becomes dogma, no better than religion.
If "The Ancients" knew everything -- or if the current set of scientists know everything -- then we're done, all we need are yet more marketeers to sell us things in different combinations. That being said, you move forward with what you believe you know but you don't set it in stone, never to be examined again.
Good for these guys.
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All (Score:1)
Such an amazing concept!!
cancer and smoking (Score:1)
This also gives insight into lung cancers. If the cancer-creating corruption occurs in a pluri-potent cell instead of a typical tissue, perhaps the route to metastasis is less difficult.
-engrstudent
Transplant Problem (Score:2)
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Because they generally irradiate the bones to kill the marrow (along with chemo that kills cells en masse) and probably end up zapping the lungs in the process too.
Immunotherapies can't happen fast enough. Fix the broken cell mechanics (mitochondrial pathways) and let apoptosis do the job. This scorched earth / shotgun approach is barbaric.
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