Polarized Light Microscopy Digital Image Gallery

Nicotinic Acid

Involved in various functions within the body, nicotinic acid aids in red blood cell formation, plays an active role in more than 50 different enzymatic reactions, and is considered necessary to maintain the health of the skin and digestive tract. Consequently, a dietary deficiency of the vitamin is primarily characterized by digestive disturbances and skin lesions. Known as pellagra, this condition may also lead to dementia in severe or prolonged cases. Occurrences of pellagra are most common is countries whose inhabitants eat little or no protein-rich foods, but the illness is also sometimes a side effect experienced by long-term alcoholics. A similar condition that occurs in dogs is known as black tongue disease.

© 1995-2019 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Thursday, Nov 20, 2003 at 02:51 PM
Access Count Since November 20, 2003: 6332
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.