Vitamin C contributing to the more severe symptoms of scurvy. More generally, the biochemical role of vitamin C is to act as an antioxidant (a reducing agent) by donating electrons to various enzymatic and non-enzymatic reactions. Doing so converts vitamin C to an oxidized state - either as semidehydroascorbic acid or dehydroascorbic acid. These compounds can be restored to a reduced state by glutathione and NADPH-dependent enzymatic mechanisms. In plants, vitamin C is a substrate for ascorbate peroxidase. This enzyme utilizes ascorbate to neutralize toxic hydrogen peroxide (HO) by converting it to water (HO). Scurvy is a disease resulting from a deficiency
The History of Iron Maiden – Part 1: The Early Days Doug Sampson, Ron Matthews, Terry Wapram and Bob Sawyer. The DVD won a 2004 "Metal Edge" Readers' Choice Award for Home Video/DVD of the Year. The second part of the "History of Iron Maiden" series was later included on the "Live After Death" DVD release in 2008, while a third installment was released as part of the "Maiden England '88" DVD in 2013. "The Early Days" was met with critical acclaim, with AllMusic describing it as "A masterpiece." "Classic Rock" gave the DVD 5 out of 5, calling the live footage "fascinating," while stating that "the tales of Maiden's early