Clyde Francks
@clydefrancks.bsky.social
290 followers 200 following 76 posts
Prof. of Brain Imaging Genomics @ Max Planck Institute & Donders Institute, Nijmegen, Netherlands. Biologist interested in genes, brains, behaviour, psychiatry, left-right asymmetry. https://www.mpi.nl/people/francks-clyde
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clydefrancks.bsky.social
New @maxplanck.de study: We looked for left-right differences of gene expression and cell-type abundances in the brains of MICE 🐭using Xenium @10xgenomics.bsky.social. Possible clues to how functional brain asymmetry is supported !! www.biorxiv.org/content/10.1... Short thread below ⬇️
clydefrancks.bsky.social
Thanks Silivia! Yes we added a second batch of data since the Laterality conference and roughly doubled the sample size
clydefrancks.bsky.social
Thanks Cedric! Yes it was among genes identified in GWAS studies of human brain asymmetry that we found most evidence for asymmetrical expression in the mouse brain - more than among genes from the larger Xenium mouse brain standard panel. Encouraging!
clydefrancks.bsky.social
Many congratulations to first authors Dannielle Houwing and @meng-yun.bsky.social and thanks to @maxplanck.de @mpi-nl.bsky.social @dondersinst.bsky.social @profsimonfisher.bsky.social @grandjeanlab.bsky.social and others not on bluesky !! 7/7
clydefrancks.bsky.social
It looks like mice can be useful for understanding some aspects of human brain asymmetry, although differences of gene expression between hemispheres were small. Future studies of e.g. mouse genetic knockouts would need adequate sample sizes to overcome this 6/7
clydefrancks.bsky.social
In mouse auditory cortex, various microtubule-associated genes showed evidence for subtle left-right differences. Again the human versions have been linked to brain asymmetry or handedness in previous large-scale studies www.pnas.org/doi/10.1073/... 5/7
clydefrancks.bsky.social
... corticotropin-releasing hormone receptor 1 was differently expressed in the left and right mouse hippocampus, and also to an extent in auditory cortex. We previously found that the human version of this gene is associated with structural brain asymmetry www.nature.com/articles/s41... 4/7
clydefrancks.bsky.social
... so we focused on these two brain structures in slices from 31 adult mouse brains using Xenium, a method to detect single mRNA molecules and place them in cellular context. We found that ... 3/7
clydefrancks.bsky.social
In most humans, language and hand motor control are lateralized to the left hemisphere. Altered brain asymmetry can be found in some psychiatric conditions. Mice also have asymmetries of brain function, in the hippocampus and auditory cortex... 2/7
clydefrancks.bsky.social
New @maxplanck.de study: We looked for left-right differences of gene expression and cell-type abundances in the brains of MICE 🐭using Xenium @10xgenomics.bsky.social. Possible clues to how functional brain asymmetry is supported !! www.biorxiv.org/content/10.1... Short thread below ⬇️
Reposted by Clyde Francks
pessoabrain.bsky.social
𝗕𝗿𝗮𝗶𝗻-𝘄𝗶𝗱𝗲 𝗰𝗼𝗺𝗽𝘂𝘁𝗮𝘁𝗶𝗼𝗻𝘀
Spatially distributed and regionally unbound cellular resolution brain-wide processing loops in mice
𝗕𝗿𝗮𝗶𝗻 𝗿𝗲𝗴𝗶𝗼𝗻𝘀 𝗼𝗿 𝗱𝘆𝗻𝗮𝗺𝗶𝗰 𝘁𝗵𝗿𝗲𝗮𝗱𝘀?
Dynamical processing winding through most brain regions.
Looks like a must read.
www.biorxiv.org/content/10.1...
#neuroskyence
Spatially distributed and regionally unbound cellular resolution brain-wide processing loops in mice
Until recently, it has been possible to examine activity in the brain globally through regional averaging or locally at cellular resolution. These studies characterized regions as functionally homogen...
www.biorxiv.org
Reposted by Clyde Francks
fmrib-steve.bsky.social
Latest processing of UK Biobank brain imaging data - now with 82,000 usable first-scan datasets. Correlating brain IDPs with 13,000 non-imaging variables gives a rich manhattan-stye plot. 324,000 Bonferroni-significant associations.
Reposted by Clyde Francks
Reposted by Clyde Francks
misicbata.bsky.social
Integrating and interpreting brain maps | doi.org/10.1016/j.ti...

Imaging and recording technologies make it possible to map multiple biological features of the brain. How can these features be conceptually integrated into a coherent understanding of brain structure and function? ⤵️
clydefrancks.bsky.social
Fascinating study suggests that left-right differences in the fly brain arise from asymmetrical twist of neurons www.biorxiv.org/node/4751792... Might also be true for human brains as we suggested here www.nature.com/articles/s41... after implicating microtubules in human structural brain asymmetry
Reposted by Clyde Francks
mydennis.bsky.social
Check out our latest work co-led by @dcsoto.bsky.social and @jmuribescr.bsky.social identifying hundreds of human duplicated gene families using the new T2T-CHM13 assembly, with a focus on those potentially contributing to brain evolution 🧪: authors.elsevier.com/a/1lTQtL7PXu...
authors.elsevier.com
clydefrancks.bsky.social
Nobel prize winner loses Dutch nationality...
nltimes.nl
Reposted by Clyde Francks
profsimonfisher.bsky.social
Ending the thread with one last illustration of novel avenues opened up by genomics of language-/reading-related traits. In a recent Science Advances paper, @clydefrancks.bsky.social's lab identified associations of dyslexia-disposing DNA variants with various aspects of human brain structure. 🧬🧠8/8
Distinct impact modes of polygenic disposition to dyslexia in the adult brain
Genetic disposition to dyslexia is associated with brain structure in the general population.
www.science.org
Reposted by Clyde Francks
rosagisladottir.bsky.social
I'm so excited to see this online now in TRENDS IN GENETICS: Advancing GWAS of Human Communication. I review latest developments in genetics of speech and language and highlight opportunities for research on genetics and evolution of human communication.
authors.elsevier.com/a/1lHgMcQbJF...
authors.elsevier.com
clydefrancks.bsky.social
Many congratulations to former member of my research group @zhiqiangsha.bsky.social , now setting up his own group in South Carolina! ⬇️
zhiqiangsha.bsky.social
👇👇🧠🧬My new lab is hiring an imaging-genetics Postdoc, exploring how genetic factors (e.g., genomics, transcriptomics) and environmental factors (e.g., early life stress) influence brain development, psychopathology, and neurodevelopmental disorders (e.g., autism). I am happy to take any questions.