PMID- 12628022 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20050721 LR - 20191027 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 2 DP - 2003 Feb 12 TI - Is type 2 diabetes mellitus a vascular disease (atheroscleropathy) with hyperglycemia a late manifestation? The role of NOS, NO, and redox stress. PG - 2 AB - BACKGROUND: Cardiovascular disease accounts for at least 85 percent of deaths for those patients with type 2 diabetes mellitus (T2DM). Additionally, 75 percent of these deaths are due to ischemic heart disease. HYPOTHESIS: Is type 2 diabetes mellitus a vascular disease (atheroscleropathy) with hyperglycemia a late manifestation? The role of NOS, NO, and redox stress. TESTING OF THE HYPOTHESIS: The vulnerable three arms of the eNOS reaction responsible for the generation of eNO is discussed in relation to the hypothesis: (1) The L-arginine substrate. (2) The eNOS enzyme. (3) The BH4 cofactor. IMPLICATIONS OF THE HYPOTHESIS: If we view T2DM as a vascular disease initially with a later manifestation of hyperglycemia, we may be able to better understand and modify the multiple toxicities associated with insulin resistance, metabolic syndrome, prediabetes, overt T2DM, and accelerated atherosclerosis (atheroscleropathy). The importance of endothelial nitric oxide synthase, endothelial nitric oxide, tetrahydrobiopterin (BH4), L-arginine, and redox stress are discussed in relation to endothelial cell dysfunction and the development and progression of atheroscleropathy and T2DM. In addition to the standard therapies to restore endothelial cell dysfunction and stabilization of vulnerable atherosclerotic plaques, this article will discuss the importance of folic acid (5MTHF) supplementation in this complex devastating disease process. Atheroscleropathy and hyperglycemia could be early and late manifestations, respectively, in the natural progressive history of T2DM. FAU - Hayden, Melvin R AU - Hayden MR AD - Department of Family and Community Medicine, University of Missouri Columbia, PO BOX 1140 Lk. Rd. 5-87, Camdenton, Missouri 65020, USA. mrh29@usmo.com FAU - Tyagi, Suresh C AU - Tyagi SC LA - eng PT - Journal Article DEP - 20030212 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 PMC - PMC151667 EDAT- 2003/03/12 04:00 MHDA- 2003/03/12 04:01 PMCR- 2003/02/12 CRDT- 2003/03/12 04:00 PHST- 2002/11/21 00:00 [received] PHST- 2003/02/12 00:00 [accepted] PHST- 2003/03/12 04:00 [pubmed] PHST- 2003/03/12 04:01 [medline] PHST- 2003/03/12 04:00 [entrez] PHST- 2003/02/12 00:00 [pmc-release] AID - 1475-2840-2-2 [pii] AID - 10.1186/1475-2840-2-2 [doi] PST - epublish SO - Cardiovasc Diabetol. 2003 Feb 12;2:2. doi: 10.1186/1475-2840-2-2.