Pubblicazioni

Autori:

Pedrinolla, Anna; Colosio, Alessandro L; Magliozzi, Roberta; Danese, Elisa; Kirmizi, Emine; Rossi, Stefania; Pogliaghi, Silvia; Calabrese, Massimiliano; Gelati, Matteo; Muti, Ettore; Cè, Emiliano; Longo, Stefano; Esposito, Fabio; Lippi, Giuseppe; Schena, Federico; Venturelli, Massimo

Titolo:

The vascular side of chronic bed rest: when a therapeutic approach becomes deleterious

Anno:

2020

Tipologia prodotto:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Lingua:

Inglese

Formato:

Elettronico

Referee:

Sì

Nome rivista:

JOURNAL OF CLINICAL MEDICINE

ISSN Rivista:

2077-0383

N° Volume:

9

Numero o Fascicolo:

918

Intervallo pagine:

1-13

Parole chiave:

Inflammatory profile; Vascular function; bed-rest; physical constrain

Breve descrizione dei contenuti:

The interplay between chronic constraint and advanced aging on blood flow, shear-rate, vascular function, nitric oxide (NO)-bioavailability, microcirculation, and vascular inflammation factors is still a matter of debate. Ninety-eight individuals (Young, n=28, 23±3yrs; Old, n=36, 85±7yrs; Bedridden, n=34, 88±6yrs) were included in the study. The bedridden group included old individuals chronically confined to bed (3.8±2.3yrs). A blood sample was collected and analyzed for plasma nitrate, and vascular inflammatory markers. Hyperemic response (∆peak) during the single passive leg movement (sPLM) test was used to measure vascular function. Skeletal muscle total hemoglobin was measured at the vastus lateralis during the sPLM test, by means of near infrared spectroscopy (NIRS). Bedridden subjects revealed a depletion of plasma nitrates compared with Old (-23.8%) and Young (-31.1%). Blood flow was lower in the Bedridden in comparison to Old (-20.1%) and Young (-31.7%). Bedridden presented lower sPLM ∆peak compared Old (-72.5%) and the Young (-83.3%). ∆peak of NIRS total hemoglobin was lower in the Bedridden compared to that in the Young (-133%). All vascular inflammatory markers except IL-6 were significantly worse in the Bedridden compared to Old and Young. No differences were found between the Old and Young in inflammatory markers. Results of this study confirm that chronic physical constraint induces an exacerbation of vascular disfunction and differential regulation of vascular-related inflammatory markers. The mechanisms involved in these negative adaptations seems to be associated with endothelial dysfunction and consequent diminished NO-bioavailability likely caused by the reduced shear-rate consequential to long-term reduction of physical activity.

Pagina Web:

https://doi.org/10.3390/jcm9040918

Id prodotto:

113784

Handle IRIS:

11562/1014869

ultima modifica:

15 novembre 2022

Citazione bibliografica:

Pedrinolla, Anna; Colosio, Alessandro L; Magliozzi, Roberta; Danese, Elisa; Kirmizi, Emine; Rossi, Stefania; Pogliaghi, Silvia; Calabrese, Massimiliano; Gelati, Matteo; Muti, Ettore; Cè, Emiliano; Longo, Stefano; Esposito, Fabio; Lippi, Giuseppe; Schena, Federico; Venturelli, Massimo, The vascular side of chronic bed rest: when a therapeutic approach becomes deleterious «JOURNAL OF CLINICAL MEDICINE» , vol. 9 , n. 918 , 2020 , pp. 1-13

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