The brain’s front and back reportedly arise from different precursor cells · Digg

The brain’s front and back reportedly arise from different precursor cells

Stanford Medicine describes its research as finding that the human brain is two separate organs. MedLink quotes Kyle Loh saying the front and back arise from different progenitor cells.

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MedLink quotes Kyle Loh saying the brain’s front and back arise from entirely different progenitor cells. A post describing the Stanford Medicine-led study says researchers analyzed mouse embryos and found distinct cell origins for the forebrain and midbrain versus the hindbrain. That account also says the team used the findings to grow human hindbrain motor neurons from stem cells, presenting them as an experimental platform for studying ALS and spinal muscular atrophy.

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The brain’s front and back reportedly arise from different precursor cells

Stanford Medicine describes its research as finding that the human brain is two separate organs. MedLink quotes Kyle Loh saying the front and back arise from different progenitor cells.

3 Sources, 1d ago, first seen 1d ago

TLDR

MedLink quotes Kyle Loh saying the brain’s front and back arise from entirely different progenitor cells. A post describing the Stanford Medicine-led study says researchers analyzed mouse embryos and found distinct cell origins for the forebrain and midbrain versus the hindbrain. That account also says the team used the findings to grow human hindbrain motor neurons from stem cells, presenting them as an experimental platform for studying ALS and spinal muscular atrophy.

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@nettermikeA major study has revealed that the human brain is actually two separate organs fused together. For centuries, science has treated the human brain as a single, unified organ that grows from a single pool of early cells. However, researchers at Stanford Medicine have completely upended this textbook definition. Published in the journal Nature Neuroscience, their study shows that what we call the brain is actually two ancient, independent nervous systems assembled side by side over evolutionary history. By analyzing mouse embryos, the team discovered that the forebrain and midbrain—which govern reasoning, language, and consciousness—develop from an entirely different set of progenitor cells than the hindbrain, which controls vital autonomic functions like heartbeat, breathing, and swallowing. This biological separation explains why scientists have struggled for decades to grow specific types of brainstem cells in laboratories, as they were trying to coerce forebrain cells into hindbrain functions. Armed with this new blueprint, the Stanford team successfully guided human stem cells to become fully functional hindbrain motor neurons in a petri dish. This breakthrough provides a critical experimental platform for studying devastating neurodegenerative disorders, such as amyotrophic lateral sclerosis (ALS) and spinal muscular atrophy, where the degeneration of these specific neurons robs patients of the ability to breathe and swallow. Hmm maybe Steve Martin was right?

@HispanicengHuman brain is two separate organs, Stanford medicine-led research finds. https://med.stanford.edu/news/all-news/2026/09/two-separate-brains.html

@MedLinkNeurolHuman brain is two separate organs, research finds https://buff.ly/9g8sAir #neurology #neuroscience