Dr. Ramsden served as Medical Investigator in the Section on Nutritional Neurosciences as a Lieutenant Commander in the Commissioned Corps of the U.S. Public Health Service. He is the Principal Investigator on a the major LMBB SNN dietary randomized controlled trial investigating the clinical and biochemical effects of controlled alterations in dietary omega-6 and omega-3. He is also currently the principal investigator or lead associate investigator on five interdisciplinary randomized controlled trials investigating the clinical and biochemical effects of controlled alterations in dietary omega-6 and omega-3 fatty acids. Four of these trials are in patient populations with chronic pain or psychiatric disorders (episodic migraine, post-traumatic headache, lumbosacral radicular pain, bipolar disease), and another in healthy volunteers. Dr. Ramsden is also investigating the molecular mechanisms linking lipid autacoids and their precursors to inflammatory and nociceptive signaling. Dr. Ramsden is currently developing his research program as a Tenure –Track Investigator at National Institute on Aging as Acting Chief of the Lipid Mediators, Inflammation and Pain Unit with a Joint Clinical Appointment with NIA/NIAAA.