We talk with Dr. Elizabeth Jonas, Professor of Internal Medicine and Neurology at Yale School of Medicine, about her new research suggesting that leaky mitochondria cause some symptoms of Fragile X syndrome. Leaky membranes may also be involved in Parkinson’s Disease and other diseases.
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Elizabeth Jonas, MD, Professor of Internal Medicine and Neuroscience at Yale University, is currently researching the role of mitochondria and energy efficiencies in neurodegenerative disorders and in the formation of learning and memory in neurotypical brains.
Bcl-xL Inhibition as a Therapeutic Strategy for Fragile X Syndrome
Scientists have found increases in the numbers of neurons in brain regions of autistic children, suggesting a problem in developmental programmed cell death pathways. One of the most important effectors of neuronal survival during brain development is the “anti-cell death” protein Bcl-xL. While the normal function of Bcl-xL is to maintain a healthy number of neurons and synapses, over-expressed Bcl-xL can cause an overabundance of synaptic connections. This may be happening in Fragile X.
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