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  • Title: Relationship between serum myostatin levels and carotid-femoral pulse wave velocity in healthy young male adolescents: the MACISTE study.
    Author: Pucci G, Ministrini S, Nulli Migliola E, Nunziangeli L, Battista F, D'Abbondanza M, Anastasio F, Crapa ME, Sanesi L, Carbone F, Lupattelli G, Vaudo G.
    Journal: J Appl Physiol (1985); 2021 Apr 01; 130(4):987-992. PubMed ID: 33630678.
    Abstract:
    Serum myostatin (sMSTN) is a proteic compound that regulates skeletal muscle growth, adipogenesis, and production of extracellular matrix. Its relationship with functional and structural properties of the arterial wall is still understudied. We aimed at evaluating the association between sMSTN and carotid-femoral pulse wave velocity (cf-PWV), a measure of aortic stiffness, in a cohort of healthy male adolescents. Fifteen healthy male adolescents were recruited among the participants of the Metabolic And Cardiovascular Investigation at School, TErni (MACISTE) study, a cross-sectional survey conducted at the "Renato Donatelli" High School in Terni, Italy. sMSTN was measured through enzyme-linked immunosorbent assay. cf-PWV was measured through high-fidelity applanation tonometry. Muscle strength and body composition were measured through handgrip and bioimpedentiometry, respectively. sMSTN levels showed a skewed distribution (median: 6.0 ng/mL, interquartile range: 2.2-69.2 ng/mL). Subjects with sMSTN above median value showed higher values of brachial diastolic blood pressure and increased cf-PWV (6.1 ± 1.1 m/s vs. 4.6 ± 0.7 m/s, P < 0.01) values, compared with their counterparts. Such difference remained significant after controlling for age, mean BP, heart rate, body mass index z-score, waist-to-height ratio, body mass/lean mass ratio, and amount of physical activity (P = 0.02). The association between log-transformed sMSTN and cf-PWV was direct and linear, and independent from the effect of confounders at the multivariate analysis (P = 0.02). In this preliminary report, sMSTN was independently associated with cf-PWV, a measure of aortic stiffness, in healthy male adolescents. Our results shed lights on the potential role of myokines in the pathogenesis of systemic hypertension and atherosclerosis.NEW & NOTEWORTHY Serum myostatin, a proteic compound known to regulate skeletal muscle growth and production of extracellular matrix, is independently associated with increased aortic stiffness in healthy male adolescents. This result sheds lights on the potential novel role of myokines in the early development of systemic hypertension and early vascular aging, as well as on their inhibition as a hypothetical therapeutic strategy to counteract vascular aging at an early stage of physical development.
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