Category Archives: On the Shoulders of Giants

Vitamin A2 in the Body–George Wald & the Porphyropsin Visual System

First of all, I’d like to apologize for the long wait between blog posts. Things have been a bit hectic for the SFM team, but that’s no excuse for leaving our readers & backers hanging.

In a previous post, we summarized some of the ways by which the human body obtains, transports, stores, and utilizes retinoids, collectively referred to as vitamin A. In this post, we’ll be discussing in more depth the ways retinol/retinal is used in human vision, and a means to metabolically hack this process using vitamin A2–the focus of our current research project.

The Human Visual System