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Dementia Study Retracted; MRI Reveals Aging Speed; New Neurons in Adult Brains

Summary by MedPage Today
(MedPage Today) -- Research that tied wildfire smoke exposure and dementia risk was retracted and replaced by the authors due a coding error. (JAMA Neurology) A novel measure calculated from a single brain MRI predicted aging patterns. (Nature...

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The brain can generate new neurons even in adulthood, and some foods can favor this process, according to Dr. Sara Marin in one of her social media videos. Marín, known as @uncafecontudoctora, highlighted the role of BDNF (a neurotrophic factor derived from the brain), a protein that functions as a “natural fertilizer” for neuronal growth. “Before we thought we couldn’t create new neurons, but now we know that there is a protein called BDNF that…

·Buenos Aires, Argentina
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For the first time, Swedish researchers have traced all stages of the birth of new neurons in adults.

·Paris, France
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Although we know that, when it comes to science, few discoveries gain certainty of inconsistencies, this does not mean that we cannot reach certain conclusions. One of them is encouraging: therefore, depending on recent research, aging is not synonymous (neuural) to conceive. A new study, which uses artificial intelligence and advanced genetic analysis, presents... The post Research indicates the birth of new neurons in adults who appeared first…

·São Paulo, Brazil
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Futura broke the news in on Tuesday, July 8, 2025.
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