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Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

york.ac.uk

41–50 of 62 posts

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#41
post #18

Paradoxically, nicotine has some medical use in e.g. displacing viral debris and autoantibodies from nAChR (nicotinic acetylcholine receptors) due to having highest affinity to these receptors, which seems to help with (long) Covid; "smoker paradox" in lower covid-related hospitalizations.

A molecule can be socially and medically associated with a very harmful delivery mechanism, while still having specific biochemical effects that are worth studying on their own. Ant that's interesting

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#42
post #4

It would be great if they could improve upon it. I find nicotine to be an underperforming chemical, despite its popularity. A bit more of a cognitive kick would be nice. Know what I mean?

I get what you mean, but "more addictive stimulant with a stronger cognitive kick" is one of those product requirements that starts to sound less appealing the longer you think about it

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#43
post #37
post #18

Paradoxically, nicotine has some medical use in e.g. displacing viral debris and autoantibodies from nAChR (nicotinic acetylcholine receptors) due to having highest affinity to these receptors, which seems to help with (long) Covid; "smoker paradox" in lower covid-related hospitalizations.

I was expecting to see a longer list of medical uses, but the wiki says that nicotine has performance impacts on cognition, improving fine motor motion and memory. The pharmacology section is sophisticated. https://en.wikipedia.org/wiki/Nicotine#Uses

Nicotine is nice as much as coffee. Smoking kills though. I am not a doctor

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#44
post #22

Earlier quoted context omitted.

Modafinil? Ritalin? The latter is great for tedious tasks.

It's also great for totally messing up your brain chemistry and your reward wiring. Wouldn't touch it myself. I'm sure if you did it once or twice a year it'd be fine but let's be real, anyone who's willing to take it in the first place (outside of having a genuine medical reason like narcolepsy/ADHD) will want to take it a lot more than that. Besides, in the long run - measured over weeks or months - these absolutel…

ADHD stimulants promised a lot in terms of motivation -- but only made me do the thing I already wanted to do instead of work... more.

So instead of plugging away on house work or chores or my employer's boring work, I was building compilers and databases from scratch at 3am, unable to sleep.

And then I checked my blood pressure. Oops.

Also seemed directly implicated in a loved one of mine acquiring an eating disorder.

1/10 would not recommend.

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#45

Earlier quoted context omitted.

Chewing tobacco causes mouth cancer. Nicotine is okay, everything else in the tobacco leaf no so much.

On a scale from the-state-of-california cancer to exposed-to-sublethal-amounts-of-ionizing-radiation cancer, how worried should I be?

It's a serious concern and switching to synthetic nicotine products may prolong your life. All tobacco products are highly carcinogenic. Contrary to what was said earlier it is not really about the smoking (though of course that makes things worse).

Nicotine products aren't safe; they are highly addictive and may exacerbate tumors that are already there. But they're far less addictive than tobacco products and they probably won't kill you.

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#46
post #24
post #23

Earlier quoted context omitted.

Great to see this here. CIGS are bad, nicotine is pretty neutral to good, as a lozenge or patch or gum. Edit: Nicotine can be way more medically relevant than “less bad”. Not sure what the person replying to me is even on about, tbh

Really inhaling something burning is bad. Pretty much every other form of tobacco that is not cigarettes is less bad.

I would even go further: inhaling pretty much anything other than air is harmful in the long-term.

I imagine if you inhaled helium several times a day for decades that it would also mess something up.

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#47

Earlier quoted context omitted.

On a scale from the-state-of-california cancer to exposed-to-sublethal-amounts-of-ionizing-radiation cancer, how worried should I be?

It's a serious concern and switching to synthetic nicotine products may prolong your life. All tobacco products are highly carcinogenic. Contrary to what was said earlier it is not really about the smoking (though of course that makes things worse). Nicotine products aren't safe; they are highly addictive and may exacerbate tumors that are already there. But they're far less addictive than tobacco products and they p…

>it is not really about the smoking

I agree with you that tobacco is uniquely harmful, but smoking by itself is also bad by itself. Even exposure to smoke from campfires, if chronic, will elevate your risk for COPD, cardiovascular disease, lung cancer, etc.

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#48
For context the Cell paper published several weeks before [0][1] provides a more bird's eye view (multi-omics etc.) the Nature paper here is very hands on providing x-ray crystal structures etc.

So both complement each other well.

[0]https://www.cell.com/cell/fulltext/S0092-8674%2826%2900335-1

[1]https://phys.org/news/2026-04-nicotine-biosynthesis-wild-tob...

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#49

Earlier quoted context omitted.

It's a serious concern and switching to synthetic nicotine products may prolong your life. All tobacco products are highly carcinogenic. Contrary to what was said earlier it is not really about the smoking (though of course that makes things worse). Nicotine products aren't safe; they are highly addictive and may exacerbate tumors that are already there. But they're far less addictive than tobacco products and they p…

>it is not really about the smoking I agree with you that tobacco is uniquely harmful, but smoking by itself is also bad by itself. Even exposure to smoke from campfires, if chronic, will elevate your risk for COPD, cardiovascular disease, lung cancer, etc.

Smoking/smoke inhalation is not safe, it leads to all the bad outcomes you mention, and I encourage everyone to seek out alternatives like oral nicotine pouches and cannabis gummies. They will almost certainly improve your healthspan and may well improve your lifespan. I personally stopped smoking because my wife told me she wanted me around longer. I am all aboard the "smoking is bad for you" train.

But the role of the smoke itself is overemphasized which leads to a false sense of security. Switching from cigarettes to dip does lead to a significant improvement in mortality. But the real step change is moving to oral nicotine pouches, gum, patches, etc.

I'd also point out the risk from campfires and from cigarettes is not at all comparable. They are several orders of magnitude apart. Even smoking marijuana isn't nearly as dangerous as smoking tobacco. (Smoking marijuana is not safe, that just goes to show how ridiculously dangerous cigarettes are.)

Re: Scientists solve 200-year-old puzzle of how tobacco plants make nicotine

#50
post #30

Earlier quoted context omitted.

Inhaling? We're talking about a compound here, not tobacco.

The HN guidelines say "Please respond to the strongest plausible interpretation of what someone says". The way I understand it is that different people on the thread often have different ways of thinking about the topic, and we shouldn't dismiss something because it's not what "we" were talking about. In this case, it was obvious to you that the parent was talking about smoking tobacco, right? So you can either engag…

Which parent?!

No!, we’re specifically trying to avoid talking about tobacco.

We’re trying to talk about nicotine!

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