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Some proteins involved in inflammation, such IGFBP7, formed a conserved network in HFpEF across two independent cohorts from the PROMIS-HFpEF study and may mediate the association between comorbidity burden and echocardiographic indicators of worse haemodynamics and RV dysfunction.105 Patients with a pan-inflammatory phenotype exhibited the highest circulating levels of inflammatory mediators, more comorbidity, more HF hospitalisations, higher left-atrial volume index and NT-proBNP level, worse renal function, the highest levels of fibrotic biomarkers such IGFBP7 and the lowest functional capacity, in an HFpEF study that used unsupervised machine learning.106 Nevertheless, higher concentrations of IGFBP7 were associated with increased risk of cardiovascular events in patients from the I-PRESERVE trial, but after multivariable adjustment this association was no longer present.107 Regarding diastolic function, in a cohort of HFpEF patients IGFBP7 was elevated and associated with markers of diastolic dysfunction, HF severity and prognosis ( Table 2 ).108 In HFpEF patients randomised to receive sacubitril/valsartan versus valsartan, higher concentrations of IGFBP7 were associated with abnormalities in diastolic filling and left atrial dilation
Dietary methionine restriction ameliorated fat accumulation, systemic inflammation, and increased energy metabolism by altering gut microbiota in middle-aged mice administered different fat diets
GLP-1 receptor agonists like semaglutide and tirzepatide are temperature-sensitive compounds that require careful handling to maintain potency
Variants in GLP1R, GIPR, and FTO genes can influence metabolic response patterns and inform your provider's clinical reasoning when documenting medical necessity for insurance or HSA/FSA purposes
