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Alexander Shakeel Bates
@asbates.bsky.social
Fly Neuroscientist and other good things.
43 followers129 following25 posts
ASasbates.bsky.social

Lastly we are interested in cases where our predictions fail and unpublished data linking transmitters, neuropeptides, gap-junctions, post-synaptic receptors, co-transmisison combinations to EM. Please get in touch (Alexander_Bates[at]hms.harvard.edu) with any insights.

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ASasbates.bsky.social

Thank you Lou Scheffer, Clare Pilgrim, @vincentcroset.bsky.social@hhmi.bsky.social.

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ASasbates.bsky.social

Nils Eckstein, Andrew Champion, Michelle Du and Jan Funke for the ML, biology w/ Yijie Yin, Philipp Schlegel, Kathi Eichler, @martamcosta2, @gsxej, Volker Hartenstein, data w/  Sven Dorkenwald, Arie Matsilah, Claire McKellar, Amy Sterling, Mala Murthy, Sebastian Seung, the Janelia Annotation Team.

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ASasbates.bsky.social

We hope these results will act as an accelerant for connectome-driven/informed hypotheses and neuroscientific investigation. We made these results available to the community as early as we could (#biorxiv @biorxiv-neursci.bsky.social in 2020). Our predictions have been used in >12 studies since.

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ASasbates.bsky.social
ASasbates.bsky.social

Not quite mission complete. We want more annotations. E.g. receptor localisation delineates excitatory from inhibitory glut connections, moving our +/ - labels to individual connections. Their annotation could enable ML to extract this molecular information from EM at scale.

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ASasbates.bsky.social

Which proxy for synaptic signs!... With major assumptions, e.g. no co-transmission, and that glutamate is inhibitory - but, it seems ~80% of brain neurons may express both excitatory and inhibitory GluRs, and co-transmission esp. in monoaminergic neurons is reasonably common.

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ASasbates.bsky.social

Which means, we had now ‘coloured in’ the connectome with transmitter labels…

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ASasbates.bsky.social

Yet overall, we had predictions which we felt were pretty good, across several data sets that together make up a whole (amalgam) Drosophila melanogaster nervous system! The neurotransmitter proportions turned out similar to those suggested by single-cell RNA-seq studies.

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AS
Alexander Shakeel Bates
@asbates.bsky.social
Fly Neuroscientist and other good things.
43 followers129 following25 posts