Eduardo Schenberg, PhD Profile picture
Jan 12, 2022 โ€ข 30 tweets โ€ข 10 min read โ€ข Read on X
Psychedelics making it today to the top of USA ๐Ÿ‡บ๐Ÿ‡ฒ health institutions: @NIH
Joshua Gordon started emphasizing NIH's #mechanistic funding focus
4k attendees in 21 time zones ๐ŸŒ๐ŸŒŽ๐ŸŒ
Franz Vollenweider ๐Ÿ‡จ๐Ÿ‡ญ ๐Ÿ‘จโ€๐Ÿ”ฌ summarizing history and neurobiology ๐Ÿง 
Molecular mechanisms focused on 5HT2A receptor and downstream Glutamate release
Sophisticated psychological model summarized nicely in one slide ๐Ÿ‘
Alpha power drop highlighted as most reliable brain signature of psychedelics.

Among others, I observed this in my own brain during ayahuasca EEG postdoc back in 2013 ๐ŸŒฟ๐Ÿง 
Systemic model centered on thalamo-cortical connectivity
@AnnaCiaunica will enjoy seeing bodily self experiences included
Vollenweider concluding with recent model developed with @KatrinPreller ๐Ÿ‘ฉโ€๐Ÿ”ฌ ๐Ÿ‡จ๐Ÿ‡ญ Amazing work you two and team, so much effort for so long! ๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘
Gabriella Gobbi now from @McGillNBPU speaking about translational issues, or how do ๐Ÿ๐Ÿ’ โ†”๏ธ๐Ÿšถโ€โ™€๏ธ๐Ÿšถโ€โ™‚๏ธresearch interelates
LSD shown to increase sociability in mice.

Ask ravers about it ๐Ÿ˜‰
Optogenetic manipulation of prefrontal cortex ๐Ÿ can inhibit psychedelic-induced sociability
Gobbi's recommendation seem to be low-micro dose therapeutic regimes, yet with psychotherapy. Thank you for the work @McGillNBPU lab!
Now @zenbrainest taking us into the fascinating nanometer scales of drug-receptor binding interactions
Fascinating drug-receptor binding maps evolving.

How do we make sense of this kind of data and the more simplistic focus on 5HT2A receptor? ๐Ÿค”
320 GPCRs ๐Ÿคฏ Bryan Roth data blows my mind
Psilocin dopaminergic effects...

After all, would there be so much enthusiasm without good old reinforcing dopamine? ๐Ÿคฃ
Now Clinton Canal with an important question...
Another way to frame it ๐Ÿคฃ
Now Scott Thompson @sthom003 on more preclinical and mechanisms
What are 5HT2A receptors actually necessary for?
Now back to humans with @GitteKnudsen2 ๐Ÿ‡ฉ๐Ÿ‡ฐ with new in vivo imaging
5HT2A receptor downregulation

Watch out party and churchgoers...
Fewer receptors more mindfulness?
Mystical neurochemistry? Awesome lecture ๐Ÿ‡ฉ๐Ÿ‡ฐ @GitteKnudsen2 ๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘
Rob Malenka: are 5HT2A receptors necessary AND sufficient?
Awesome panel, thank you all for the lectures today ๐Ÿ’ซ

In a sense I've been looking forward for this kind of event for 15 years!
Lovely closing remark by Franz Vollenweider: these are not just pharmacological treatments. Listen the therapists as well!! ๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘
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More from @ee_schenberg

Jun 6
Unblinding was the major issue in @Lykos_PBC MDMA efficacy review by @US_FDA's PDAC

In 2011 I started a post-doc with ayahuasca and figured out the obvious: double-blinding wouldn't work. In 2014 I discussed this at @Imperial_PRG without success

We need better epistemology ๐Ÿงต๐Ÿ‘‡ Image
It is striking how the field of evidence-based medicine (EBM) continuously endorses blinding as the most reliable control for post-randomization biases, when in fact there's much evidence to systemic failures and epistemic bias, as I presented at PS23 Image
Less than 10% of biomedical RCTs measure and report unblinding, and many unblinded trials were published without disclosing this issue, including in top journals and for already approved medications. Image
Read 26 tweets
Apr 11, 2023
7even years ago @PNASNews published results of our neuroimaging exploration with #LSD, bravely led daily by @RCarhartHarris and a young trio @LeorRoseman myself and @MendelKaelen in the early days of @Imperial_PRG, exploring unknown frontiers despite huge prejudice all around... Image
One day, with LSD inside my blood, I saw an unforgetable infinitude of things, including the MRI transform into a massive surgical robot laser-cutting thin slices of my brain which flew at light speed into the computer screen in the nearby room...
And I asked myself "Can they see my thoughts on screen"?

That seemed a silly idea and I laughed alone in the noisy cold room (relieved as other visions were of sensuous aesthetics, luckily never asked about ๐Ÿ™ƒ)...
Read 12 tweets
Mar 22, 2023
This equinox the @IPCC_CH released the updated edition of our best "manual for spaceship earth" ๐Ÿ˜‰, nicely summarized by Prof. @KHayhoe here:

Should we build connections between our existential #climatecrisis and psychedelics?
๐Ÿงต๐Ÿ‘‡ Image
In a nutshell:
"a batata ๐Ÿฅ” ta assando ๐Ÿ”ฅ"
(the potato is roasting), as people say in Brazil ๐Ÿ‡ง๐Ÿ‡ท when facing complicated problems Image
But the GOOD NEWS ๐Ÿคž is that YES we have many #AvailableSolutions ๐Ÿ’ซ

And as I highlighted in green in this image, indigenous lands and knowledge are fundamental for implementing some key solutions. Image
Read 12 tweets
Feb 16, 2023
This is likely the single most important paper in psychedelic science ๐Ÿ’ซ since "the LSD lid" (2017) and the "dmt-sigma 1" (2009) publications

What connects them is literally mind-blowing ๐Ÿคฏ
Absolutely congrats to @DEOlsonLab and all collaborators ๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘๐Ÿ‘ science.org/doi/10.1126/scโ€ฆ
Here is the 2017 LSD "lid" paper by @zenbrainest et al, also superb cell.com/cell/fulltext/โ€ฆ
Read 4 tweets
Jan 14, 2022
This week #psychedelics, almost completely ignored by western science and medicine in the last quarter of the 20th century, made it to the top of ๐Ÿ‡บ๐Ÿ‡ธ healthcare, the @NIH:

4k folks ๐ŸŒ 21 time zones
+10h of talks
Panelists from
๐Ÿ‡บ๐Ÿ‡ธ 12
๐Ÿ‡จ๐Ÿ‡ฆ 1
๐Ÿ‡ฎ๐Ÿ‡ฑ 1
๐Ÿ‡ฉ๐Ÿ‡ฐ 1
๐Ÿ‡ฌ๐Ÿ‡ง 1
๐Ÿ‡ณ๐Ÿ‡ฟ 1
๐Ÿ‡จ๐Ÿ‡ญ 1

๐Ÿงต summary ๐Ÿ‘‡
Agenda comprised 3 main themes:
Basic and translational research ๐Ÿ€๐Ÿ”ฌ๐Ÿ‘ฉโ€๐Ÿ”ฌ๐Ÿ‘จโ€๐Ÿ”ฌ๐Ÿงฎ๐Ÿ’ป
Clinical trials ๐Ÿ‘ฉโ€โš•๏ธ๐Ÿง‘โ€โš•๏ธ๐Ÿ‘จโ€โš•๏ธ๐Ÿคฎ๐Ÿ’Š๐Ÿค’๐Ÿ’‰
Optimising future trial designs ๐Ÿ’พ๐Ÿ’ฝ๐Ÿ’ฟ๐Ÿ“€
Here are my remarks from 20y experience:
This is a good landmark to claim psychedelic science finally achieved maturity
Basic research is evolving rapidly and public funding ๐Ÿ’ฐis what is needed to transform the field
Clinical trials suggest transdiagnostic safety and efficacy
Read 5 tweets
Jan 13, 2022
Third and last session of #psychedelics @NIH ๐Ÿ‡บ๐Ÿ‡ฒ workshop starting now, looking at how to optimize clinical trials design and how to get these treatments approved ๐Ÿงต
Starting with Ido @hartogsohn ๐Ÿ‡ฎ๐Ÿ‡ฑ on psychedelic set and setting theory
Important Q โ“

Do we have an (excessively) costly and complicated drug regulation apparatus?
Read 19 tweets

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