Pregnenolone & Corticosteroids in Brain Health | Sherwood Brown | Episode 293

Send us Fan MailPregnenolone, a neurosteroid derived from cholesterol, affects brain activity and shows promise for treating mood and substance abuse disorders.TOPICS DISCUSSED:Steroid Biosynthesis: Cholesterol converted to pregnenolone, the precursor for all steroid hormones including cortisol, aldosterone, and sex hormones.Corticosteroids: Synthetic versions like prednisone primarily target glucocorticoid receptors for anti-inflammatory uses but can impact mood and cognition.Pregnenolone Mechanisms: Positive allosteric modulator of NMDA receptors for cognition and negative allosteric modulator of CB1 cannabinoid receptors.Allopregnanolone: GABAergic derivative of pregnenolone; its IV form Brexanolone is FDA-approved for postpartum depression.Clinical Trials: Pregnenolone at 100-500 mg improved depressive symptoms in placebo-controlled studies of bipolar disorder patients.Cannabis Interaction: THC robustly induces brain pregnenolone production; supplementation may reduce cannabis and alcohol use.Corticosteroid Brain Impact: Prednisone use associated with smaller hippocampal volumes and memory deficits.ABOUT THE GUEST: Sherwood Brown, MD, PhD is Vice Chair for Clinical Research in the Department of Psychiatry at the University of Texas Southwestern Medical Center in Dallas. With a background in chemistry, his research focuses on steroids and comorbidities in people with mood disorders.RELATED EPISODE:M&M 124: Hormonal Contraception, Sex Hormones, Menstruation, Pregnancy, Puberty, Estrogens, Androgens, Effects of Birth Control on Cognition | Adriene BeltzSupport the showSupport my work:Good Chemistry: Personalized, science-based health consulting. Work with Dr. Nick Jikomes directly.Affiliate Partners: Visit this link to see my affiliate partners and get discounts codes for products & services to support health.For all the ways you can support my efforts.