While homocysteine, a non-essential amino acid, is normally present in low concentrations in the blood, individuals with high levels have a significantly greater risk for cardiovascular diseases, although the direct link has not yet been established. What is known, however, is that cardiovascular diseases are responsible for nearly half of all deaths in the US each year.
What are the possible adverse consequences from vitamin B-12 deficiency? Which populations are most at risk and is there another vitamin deficiency of equal concern? These and other questions are part of a presentation entitled "Vitamin B-12: Deficiency, Evolution in Diagnosis, and At-Risk Populations" being given by Ralph Green, MD, Professor and Chair of the Department of Pathology at the University of California-Davis Health System, and Pathologist-in-Chief at the University of California-Davis Medical Center, Sacramento, CA. Dr. Green is offering his remarks during the 55th Annual Meeting of the American Association for Clinical Chemistry (AACC) in Philadelphia, PA, July 20-24, 2003. More than 16,000 attendees are expected.
The normal metabolism of homocysteine requires at least three, and probably four, vitamins: vitamin B-12, folic acid, vitamin B-6, and riboflavin. As with deficiencies of B-12, deficiencies of folic acid (folate) can cause high levels of homocysteine. The metabolism of these two vitamins is closely intertwined and deficiency of either one produces identical effects of anemia. Deficiencies of both are commonly found among the elderly. While alike, and work hand-in-hand to
Contact: Donna Krupa
American Association for Clinical Chemistry