Publications by authors named "A F Groen"

It is widely accepted that the (over)consumption of meat is negatively linked to environmental problems and public health issues, yet research shows that actual meat consumption remains (too) high. While most research related to the protein transition focuses on consumers' motivations, perceptions and acceptance towards plant-based meat alternatives, a clear need arises to extensively study the context in which (plant-based) meals are consumed. In this research, a generative research approach was applied to extend knowledge on flexitarian households' meat reduction practices.

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Imidazole Propionate (ImP), a gut-derived metabolite from histidine, affects insulin signaling in mice and is elevated in type 2 diabetes (T2D). However, the source of histidine and the role of the gut microbiota remain unclear. We conducted an intervention study in mice and humans, comparing ImP kinetics in mice on a high-fat diet with varying histidine levels and antibiotics, and assessed ImP levels in healthy and T2D subjects with histidine supplementation.

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Article Synopsis
  • The trans intestinal cholesterol excretion (TICE) pathway is a strategy to lower LDL cholesterol by promoting the direct excretion of cholesterol from enterocytes into feces, which was previously stimulated in mice using hydrophilic bile acids.* -
  • A clinical trial tested whether the bile acid ursodeoxycholic acid (UDCA) could increase fecal cholesterol excretion in humans, involving 20 male participants who received either UDCA or a placebo after a run-in with ezetimibe.* -
  • Results showed that while UDCA did increase the hydrophilicity of bile acids, it did not elevate fecal neutral sterols nor decrease LDL cholesterol levels, indicating TICE may not be influenced by bile acid hydroph
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Background And Objective: Patients who underwent Roux-en-Y Gastric Bypass surgery for treatment of obesity or diabetes can suffer from post-bariatric hypoglycemia (PBH). It has been assumed that PBH is caused by increased levels of the hormone GLP-1. In this research, we elucidate the role of GLP-1 in PBH with a physiology-based mathematical model.

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Background And Aims: Gallstone disease (GSD) associates with significant morbidity and mortality. Decreased secretion of bile acids has been suggested as a driving factor for GSD. Recently, we linked the protein phosphatase 1 regulatory subunit 3 beta ( rs4240624 genotype to decreased bile acid levels in bile.

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