{
  "id": 11006392,
  "title": "Could humans ever regenerate their brains like these worms?",
  "url": "https://urgent.news/2026/09/30/could-humans-ever-regenerate-their-brains-like-these-worms",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-09-30T18:17:58.000Z",
  "source": {
    "name": "Futurity",
    "slug": "futurity",
    "url": "https://www.futurity.org/flatworms-regenerate-brains-3347572/"
  },
  "original_language": "en",
  "account": "A recent study has identified genes that enable flatworms to regenerate their brains. The human brain is notoriously poor at self-healing from injuries or diseases. Researchers from the University of Georgia have zeroed in on several key genes responsible for brain regeneration in a specific type of flatworm. According to Rachel Roberts-Galbraith, an associate professor at UGA's Franklin College of Arts and Sciences, \"We would like to come up with ideas for how to better empower the human brain to regenerate itself.\" Both flatworm and human brains consist of networks of specialized cells called neurons, which communicate via electrical or chemical signals. While flatworms utilize stem cells to replace neurons following an injury, human stem cells are not efficient in transforming into new neurons, thus hindering effective healing. The study provides insight into how shared genes function in flatworms, paving the way for further investigation into similar pathways in humans that could lead to improved therapies for traumatic brain injuries or diseases. Flatworms, known as planarians, inhabit freshwater, saltwater, and even terrestrial environments. They lack circulatory and respiratory systems but possess stem cells capable of transforming into whatever the body requires at any given time. This unique characteristic makes them an invaluable research subject for brain and cognitive studies. Planarians can regenerate their entire body from a mere fragment of their body. They can rebuild tissues, muscles, and even their brain. However, the mechanism behind how these creatures determine the type of cell to create and where to dispatch it remains a mystery. The study, published in Nature Communications, identified nearly a dozen genes responsible for instructing stem cells to become dopamine-producing neurons and guiding these new neurons to their proper locations in the worm's body. Dopamine, often dubbed the \"feel good\" chemical, is not just associated with reward and pleasure; it also serves as a signal for neuron-to-neuron communication and plays a crucial role in movement regulation. Low dopamine levels contribute to tremors, stiffness, and other symptoms in individuals with Parkinson's disease. When the researchers deactivated some of the genes studied, planarians encountered difficulties in producing new dopamine-producing neurons and experienced slowed movement, akin to the effects of low dopamine found in humans and other mammals. Presently, healthcare providers lack effective treatments for conditions like Parkinson's, Alzheimer's, and traumatic brain injuries. Harnessing the body's own cells to heal injuries, as planarians do, could revolutionize medical treatment. \"We figured out the genetic recipe for making these cell types in planarians,\" Roberts-Galbraith explains. \"We hope this work will aid others in devising methods to create dopamine-producing neurons from stem cells that can be more effectively transplanted into patients.\"",
  "summary": "Researchers have pinpointed several of the genes that make brain regeneration possible in one type of flatworm.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}