title: Hemorheologic changes in type 2 diabetic patients with microangiopathic skin lesions. A linear discriminant categorizing analysis.
abstract: The development of diabetic microangiopathy may produce lesions in distinct organic territories (the skin, among others). With an intention of identifying hemorheologic variables for a better characterization of diabetic patients, we studied plasmatic and blood viscosities (P Visc at 2.30 s(-1) and B Visc at 4.60 and 230 s(-1)), fibrinogenemia, and erythrocytic aggregation in 40 type 2 diabetic patients (13 with microangiopathic skin lesions and 27 without) and in 30 healthy controls. Considering its alterations in diabetic patients and applying linear discriminant analysis, two models may be characterized: (a) discriminant function (Disc F)=0.58 aggregate shape parameter (ASP)-0.61 B Visc(230)+0.89 fibrinogenemia for discriminating healthy individuals from diabetic patients with microangiopathic skin lesions and (b) Disc F=6.325 ASP-0.347 B Visc(230)+0.013 fibrinogenemia for discriminating healthy controls from diabetic patients with and without microangiopathic skin lesions. Both models appear to be valid due to the following: (a) Model 1: a coefficient of canonic correlation of 0.924, a highly significant Mahalanobis distance (P<10(-3)), a correct percentage of classification (100%), and the centroids of each group (0.94 and 5.63); (b) Model 2: a coefficient of canonic correlation of 0.898, a highly significant Mahalanobis distance (P<10(-3)), a correct percentage of classification (85.7%), and the centroids of each group (-1.9, 1.9, and 2.4). Just as the alterations in the analyzed hemorheologic variables could be suggesting their possible involvement in the physiopathogenia of diabetic microangiopathic skin lesions, the proposed models could characterize a microcirculatory profile in diabetic patients for preventing irreversible damages.
authors.affiliation: Department of Morphological Sciences, Rosario Medical School, National Rosario University, Rosario, Argentina.
authors.forename: Larisa Ivón
authors.initials: LI
authors.lastname: Carrera
authors.forename: Raúl
authors.initials: R
authors.lastname: Etchepare
authors.forename: Mabel
authors.initials: M
authors.lastname: D'Arrigo
authors.forename: Stella Maris
authors.initials: SM
authors.lastname: Vaira
authors.forename: Juana
authors.initials: J
authors.lastname: Valverde
authors.forename: Alberto Enrique
authors.initials: AE
authors.lastname: D'Ottavio
authors.forename: Patricia
authors.initials: P
authors.lastname: Foresto
mesh_terms: D000368:Aged; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology*; D003925:Diabetic Angiopathies / Q000145:classification* / Q000503:physiopathology*; D016002:Discriminant Analysis; D005260:Female; D018056:Hemorheology; D006801:Humans; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D012016:Reference Values; D012867:Skin / Q000098:blood supply; D012871:Skin Diseases / Q000145:classification / Q000209:etiology / Q000503:physiopathology*