Tumor-derived cyclooxygenase-2 fuels hypothalamic inflammation.

Hypothalamic inflammation often coincides with cancer and cachexia-anorexia. Prior work established the significance of tumor-derived inflammatory factors in triggering hypothalamic inflammation, yet the precise mechanisms remained elusive. Here, we demonstrate that prostaglandin E2 (PGE2), produced in the tumor via cyclooxygenase-2 (COX-2), plays a pivotal role in this context.

Biotransformation and Epithelial Toxicity of Prenylated Phenolics from Licorice Roots ( spp.) in 3D Apical-Out Mucus-Producing Human Enteroids.

Apical-out enteroids mimic the environment well due to their accessible apical surface and mucus layer, making them an ideal model for studying the impact of (bioactive) food compounds. Generated human ileal apical-out enteroids showed a fucose-containing mucus layer surrounding the apical brush border on their exposure side, indicating their physiological relevance. Effects on the mucosal epithelium of antibacterial prenylated phenolics (glabridin, licochalcone A, and glycycoumarin) from licorice roots were investigated for cytotoxicity, cell viability, barrier integrity, and biotransformation.

Concurrent nutrient deficiencies are associated with dementia incidence.

Introduction: While observational research suggests a protective role for nutrition in brain aging, intervention studies remain inconclusive. This failing translation from observational to interventional research may result from overlooking nutrient interactions.

Methods: We developed a nutrient status index capturing the number of suboptimal statuses of omega-3 fatty acids, homocysteine, and vitamin D (range 0 to 3).

The association between adherence to the EAT-Lancet diet and cognitive ageing.

Background: The EAT-Lancet commission has proposed a dietary pattern that is both sustainable and healthy. However, the impact of this diet on cognition in older adults remains unexplored. Therefore, we examined the association between adherence to the EAT-Lancet diet and cognitive ageing.

Dietary Intake of Yeast-Derived β-Glucan and Rice-Derived Arabinoxylan Induces Dose-Dependent Innate Immune Priming in Mice.

Beta-glucans and arabinoxylans are known for their immunostimulatory properties. However, in vivo these have been documented almost exclusively following parenteral administration, underemphasizing oral intake. C57BL/6 mice are fed either a control diet or a diet supplemented with yeast-derived whole β-glucan particle (yWGP) or with rice-derived arabinoxylan (rice bran-1) at a concentration of 1%, 2.