Renal Physiology and Glycation

In this episode of the College of Glycation, Dr. Paul Reynolds—Professor of Cell Biology and Physiology—dives into the kidneys, organs that quietly perform some of the most demanding work in the body. He begins by explaining how healthy kidneys filter massive volumes of blood, maintain fluid and electrolyte balance, regulate blood pressure, and preserve essential proteins through the highly specialized structure of the nephron. With nearly a million nephrons per kidney and an intricate filtration barrier built on size and charge selectivity, the kidneys are marvels of biological engineering—but also uniquely vulnerable to metabolic stress.Dr. Reynolds then reveals how glycation and chronic hyperglycemia progressively damage this delicate system. Advanced glycation end products (AGEs) alter long-lived structural proteins in the glomerular basement membrane, injure podocytes with limited regenerative capacity, and trigger inflammation and fibrosis through the AGE–RAGE axis. These processes drive hyperfiltration, albumin leakage, oxidative stress, and the vicious cycles that characterize diabetic kidney disease. The episode highlights why kidney damage is often silent until advanced stages, why early detection is critical, and how understanding these mechanisms provides a framework for preventing chronic kidney failure.Paul’s favorite yerba mate: https://ufeelgreat.com/usa/en/c/C63EE3  Paul’s favorite source for clean, earth-sourced essentials such as salt, elecrolytes, hydration, pre-workout and more. Go to https://redmond.life and use PAULSALT for 15% discount.  Paul’s favorite exogenous ketones: A high-quality option is the NSF-certified goBHB from Clean Form Nutrition, where you can use the code Paul10 for a 10% discount: https://cleanformnutrition.com/products/go-bhb Paul’s favorite allulose source: https://rxsugar.com (discount: PAUL20)  Paul’s favorite health check-up for men or women: https://blokes.co/DRPAUL (discount: DRPAUL for 50% off of labs and smart supplements and 15% off all other products)