BACKGROUND AND AIM:Impaired fasting glucose (IFG) is associated with an increased risk of cardiovascular disease but the underlying mechanisms are still unclear. Aim of the study was to investigate the interplay between platelet activation, lipopolysaccharides (LPS) and markers of oxidative stress in patients with IFG and control subjects. METHODS AND RESULTS:We performed a cross-sectional study including 35 patients with IFG and 35 control subjects who were well comparable for age, sex, body mass index and smoking history. Serum levels of LPS, zonulin (a marker of gut permeability), oxidized LDL and plasma levels of soluble P-selectin, were measured. Patients with IFG had significantly higher levels of sP-selectin, LPS, zonulin and oxLDL compared to control subjects. The IFG status (beta coefficient: 0.518, p < 0.001), higher LPS (beta coefficient: 0.352, p = 0.001) and female sex (beta coefficient: 0.179, p = 0.042) were independently associated with higher sP-selectin; in addition, oxLDL was positively associated with sP-selectin (r = 0.530, p < 0.001) and LPS (r = 0.529, p = 0.001). In IFG patients, we found a significant association between LPS and zonulin (r = 0.521, p = 0.001); this association was confirmed at multivariable analysis (beta coefficient: 0.512, p = 0.007). CONCLUSION: Our study provides evidence that patients with IFG have increased platelet activation, and suggests LPS as a potential trigger for in vivo platelet activation in this patient population.

Low-grade endotoxemia, gut permeability and platelet activation in patients with impaired fasting glucose / Carnevale, Roberto; Pastori, Daniele; Nocella, Cristina; Cammisotto, Vittoria; Baratta, Francesco; DEL BEN, Maria; Angelico, Francesco; Sciarretta, Sebastiano; Bartimoccia, Simona; Novo, Marta; Targher, G; Violi, Francesco. - In: NMCD. NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES. - ISSN 0939-4753. - STAMPA. - 27:10(2017), pp. 890-895. [10.1016/j.numecd.2017.06.007]

Low-grade endotoxemia, gut permeability and platelet activation in patients with impaired fasting glucose

CARNEVALE, Roberto;PASTORI, DANIELE;NOCELLA, CRISTINA;CAMMISOTTO, VITTORIA;BARATTA, FRANCESCO;DEL BEN, Maria;ANGELICO, Francesco;SCIARRETTA, SEBASTIANO;BARTIMOCCIA, SIMONA;NOVO, MARTA;VIOLI, Francesco
2017

Abstract

BACKGROUND AND AIM:Impaired fasting glucose (IFG) is associated with an increased risk of cardiovascular disease but the underlying mechanisms are still unclear. Aim of the study was to investigate the interplay between platelet activation, lipopolysaccharides (LPS) and markers of oxidative stress in patients with IFG and control subjects. METHODS AND RESULTS:We performed a cross-sectional study including 35 patients with IFG and 35 control subjects who were well comparable for age, sex, body mass index and smoking history. Serum levels of LPS, zonulin (a marker of gut permeability), oxidized LDL and plasma levels of soluble P-selectin, were measured. Patients with IFG had significantly higher levels of sP-selectin, LPS, zonulin and oxLDL compared to control subjects. The IFG status (beta coefficient: 0.518, p < 0.001), higher LPS (beta coefficient: 0.352, p = 0.001) and female sex (beta coefficient: 0.179, p = 0.042) were independently associated with higher sP-selectin; in addition, oxLDL was positively associated with sP-selectin (r = 0.530, p < 0.001) and LPS (r = 0.529, p = 0.001). In IFG patients, we found a significant association between LPS and zonulin (r = 0.521, p = 0.001); this association was confirmed at multivariable analysis (beta coefficient: 0.512, p = 0.007). CONCLUSION: Our study provides evidence that patients with IFG have increased platelet activation, and suggests LPS as a potential trigger for in vivo platelet activation in this patient population.
2017
liposaccarides; platelet activation; impaired blood glucose
01 Pubblicazione su rivista::01a Articolo in rivista
Low-grade endotoxemia, gut permeability and platelet activation in patients with impaired fasting glucose / Carnevale, Roberto; Pastori, Daniele; Nocella, Cristina; Cammisotto, Vittoria; Baratta, Francesco; DEL BEN, Maria; Angelico, Francesco; Sciarretta, Sebastiano; Bartimoccia, Simona; Novo, Marta; Targher, G; Violi, Francesco. - In: NMCD. NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES. - ISSN 0939-4753. - STAMPA. - 27:10(2017), pp. 890-895. [10.1016/j.numecd.2017.06.007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1012881
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