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. 2023 Dec 20;60(1):8.
doi: 10.3390/medicina60010008.

Role of Intestinal Inflammation and Permeability in Patients with Acute Heart Failure

Marcello Covino  1 , Antonella Gallo  2 , Noemi Macerola  3 , Erika Pero  2 , Francesca Ibba  2 , Sara Camilli  2 , Laura Riccardi  4 , Francesca Sarlo  5 , Grazia De Ninno  6 , Silvia Baroni  5   7 , Francesco Landi  2   7 , Massimo Montalto  2   7
Affiliations

Role of Intestinal Inflammation and Permeability in Patients with Acute Heart Failure

Marcello Covino et al. Medicina (Kaunas). .

Abstract

Background and Objectives: Heart failure (HF) represents a major health burden. Although several treatment regimens are available, their effectiveness is often unsatisfactory. Growing evidence suggests a pivotal role of the gut in HF. Our study evaluated the prognostic role of intestinal inflammation and permeability in older patients with acute HF (AHF), and their correlation with the common parameters traditionally used in the diagnostic-therapeutic management of HF. Materials and Methods: In a single-center observational, prospective, longitudinal study, we enrolled 59 patients admitted to the Emergency Department (ED) and then hospitalized with a diagnosis of AHF, from April 2022 to April 2023. Serum routine laboratory parameters and transthoracic echocardiogram were assayed within the first 48 h of ED admission. Fecal calprotectin (FC) and both serum and fecal levels of zonulin were measured, respectively, as markers of intestinal inflammation and intestinal permeability. The combined clinical outcome included rehospitalizations for AHF and/or death within 90 days. Results: Patients with increased FC values (>50 µg/g) showed significantly worse clinical outcomes (p < 0.001) and higher median levels of NT-proBNP (p < 0.05). No significant correlation was found between the values of fecal and serum zonulin and the clinical outcome. Median values of TAPSE were lower in those patients with higher values of fecal calprotectin (p < 0.05). After multivariate analysis, NT-proBNP and FC values > 50 µg/g resulted as independent predictors of a worse clinical outcome. Conclusions: Our preliminary finding supports the hypothesis of a close relationship between the gut and heart, recognizing in a specific marker of intestinal inflammation such as FC, an independent predictive prognostic role in patients admitted for AHF. Further studies are needed to confirm these results, as well as investigate the reliability of new strategies targeted at modulation of the intestinal inflammatory response, and which are able to significantly impact the course of diseases, mainly in older and frail patients.

Keywords: fecal calprotectin; heart failure; inflammaging; intestinal inflammation; permeability; zonulin.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Design of the study. Abbreviations: NT-proBNP: N-terminal fragment B-type natriuretic peptide, CRP: C-reactive protein, ALT: alanine aminotransferase, γGT: gamma-glutamyl transferase, ALP: alkaline phosphatase, IL-6: Interleukin-6.
Figure 2
Figure 2
Differences in the combined outcome according to fecal calprotectin values.
See this image and copyright information in PMC

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