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March 25, 2025
48 min listen
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Pulmonary hypertension, part 3: Early therapies and vascular physiology

In this episode, we dive into the early therapies and how our understanding of vascular physiology drastically changed the management of pulmonary hypertension.

  • Intro 0:12
  • In this episode 0:18
  • Recap of part 1 & 2 0:31
  • What part 3 is about 2:31
  • WHO conference in 1975: Treating pulmonary hypertension 3:48
  • The Discovery of Non-Steroidal Anti-inflammatory Drugs (NSAIDs), Part 1 5:20
  • Epoprostenol 6:18
  • Prostacyclin 10:37
  • Endothelin antagonists 11:41
  • Phosphodiesterase type 5 (PDE5) inhibitors 14:08
  • Interaction of nerves and blood vessels 15:06
  • The Soups VS the Sparks 17:36
  • A dreamed experiment 19:06
  • Acetylcholine 23:23
  • Enter “the calabar bean” 24:45
  • Acetylcholine and vasodilation: 1976 26:01
  • Rabbit aorta 27:45
  • Nitric oxide 29:38
  • Why are we using nitric oxide to treat pulmonary hypertension? 31:31
  • Tachyphylaxis 33:48
  • TNT factories 35:09
  • Nitrous oxide and tachyphylaxis 36:52
  • Pfizer in the 1980s 38:06
  • Understanding the trigger of pulmonary hypertension 40:53
  • PDE5 and nitric oxide and pulmonary hypertension 43:07
  • The end of the ripping yarns 44:20
  • Coming up in part 4 46:17
  • Thanks for listening 47:29

We’d love to hear from you! Send your comments/questions to Dr. Brown at rheuminationspodcast@healio.com. Follow us on Twitter @HRheuminations @AdamJBrownMD @HealioRheum.

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Sources/Disclosures

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Disclosures: Brown reports no relevant financial disclosures.