Show notes
Our guest today is Dr. Julie Andersen, who is best known for her research into aging and age-related diseases. A professor at the Buck Institute Buck Institute for Research on Aging, an independent biomedical research institute that researches ways to extend the healthy years of life, Julie and her colleagues at Buck have focused on understanding the underlying age-related processes driving neurodegenerative diseases in order to identify novel therapeutics.Because our conversation with Julie was so fascinating and long, we have divided it into two parts. In today’s part one of her interview, we talk to Julie about her youth and early career. We also talk to her about the potential of of rapamycin to protect brain cells and mitochondria in a mouse model of Parkinson’s disease as well as her thoughts about the Amyloid Cascade Hypothesis. In part two, which will go live in a few weeks, we have an in-depth conversation with Julie about her research into the neuroprotective properties of urolithin A.In terms of Julie’s background, she received her Ph.D. from UCLA and did her post-doc in the department of neurology at Harvard. In 2000 Julie joined the Buck Institute.Show notes:[[[[[[[[[[[[[00:24:11] Dawn explains that degradation of damaged mitochondria via lysosomal autophagy is a key cellular pathway in the maintenance of mitochondrial homeostasis. Disruption of this pathway contributes to the progressive cell loss that is associated with Parkinson’s disease. She goes on to mention that Julie published the results of a study in 2015that found rapamycin can protect brain cells and mitochondria in a mouse model of Parkinson’s disease. Julie explains the significance of this study and talks about the importance of rapamycin in the research of therapies for Parkinson’s disease.[[[00:41:26] Ken mentions that exposure to the herbicide paraquat is associated with increased risk of idiopathic Parkinson’s disease. He goes on to mention that Julie published a study in 2017 that showed exposure to certain environmental toxins promotes accumulation of senescent cells in the aging brain. Julie talks about her finding that therapies targeting senescent cells may constitute a strategy for treatment of sporadic Parkinson’s disease.[00:46:47] Dawn ends part one of the interview by mentioning that Julie followed up her 2017 study with another study that examined whether one could screen known neurotoxicants for their ability to cause astrocytes, which are a mitotic-cell type in the brain important for maintaining neuronal health, to undergo senescence. Julie ends the interview with a discussion about the study, titled “Screening Method for Identifying Toxicants Capable of Inducing Astrocyte Senescence.”Links:Learn more about IHMCSTEM-Talk homepageKen Ford bioKen Ford Wikipedia pageDawn Kernagis bio



