title: Impaired Circulating Angiogenic Cells Mobilization and Metalloproteinase-9 Activity after Dynamic Exercise in Early Metabolic Syndrome.
abstract: Increased levels of adhesion molecules or metalloproteinases (MMPs) may indicate endothelial dysfunction. Exercise mobilizes circulating angiogenic cells (CACs) from bone marrow in healthy subjects, improving vascular function. However, it is unclear whether this mechanism is preserved in the early stages of metabolic syndrome (early MetS). We aimed to evaluate the acute effects of exercise on adhesion molecules, angiogenic factors, MMPs, and CACs in early MetS. Fifteen subjects with early MetS and nine healthy controls underwent an exercise session and a nonexercise session, randomly. Adhesion molecules, angiogenic factors, CACs, and MMPs were evaluated before and after exercise or nonexercise sessions. At baseline, levels of sE-selectin, sICAM-1, and MMP-9 were higher in early MetS than in controls (P ≤ 0.03). After exercise, sE-selectin, sICAM-1, and MMP-9 levels were still higher in early MetS (P < 0.05). Subjects with early MetS presented less CACs (P = 0.02) and higher MMP-9 activity (P ≤ 0.04), while healthy controls presented higher MMP-2 activity after exercise. There was no difference between moments in nonexercise session (P > 0.05). In conclusion, subjects with early MetS already presented impaired endothelial function at rest along with a decrease in CACs and an increase in MMP-9 activity in response to exercise.
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Natalia G
authors.initials: NG
authors.lastname: Rocha
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Allan R K
authors.initials: AR
authors.lastname: Sales
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Leticia A
authors.initials: LA
authors.lastname: Penedo
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Felipe S
authors.initials: FS
authors.lastname: Pereira
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Mayra S
authors.initials: MS
authors.lastname: Silva
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Renan L
authors.initials: RL
authors.lastname: Miranda
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Jemima F R
authors.initials: JF
authors.lastname: Silva
authors.affiliation: Department of Physiology, Section of Exercise Physiology, Federal University of São Paulo, 04023-062 São Paulo, SP, Brazil.
authors.forename: Bruno M
authors.initials: BM
authors.lastname: Silva
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Aline A
authors.initials: AA
authors.lastname: Santos
authors.affiliation: Laboratory of Exercise Sciences, Department of Physiology and Pharmacology, Fluminense Federal University, 24210-130 Niterói, RJ, Brazil.
authors.forename: Antonio C L
authors.initials: AC
authors.lastname: Nobrega
mesh_terms: D000328:Adult; D043925:Angiogenesis Inducing Agents / Q000097:blood / Q000378:metabolism; D015703:Antigens, CD / Q000097:blood / Q000378:metabolism; D016022:Case-Control Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D020780:Matrix Metalloproteinase 9 / Q000097:blood / Q000378:metabolism*; D024821:Metabolic Syndrome / Q000097:blood / Q000378:metabolism* / Q000503:physiopathology*
chemical_list: D043925:Angiogenesis Inducing Agents; D015703:Antigens, CD; D020780:Matrix Metalloproteinase 9