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In Vitro Neuroprotective Effects of a Mixed Extract of Bilberry, Centella asiatica, Hericium erinaceus, and Palmitoylethanolamide

Rebecca Galla, Sara Ferrari, Ivana Miletto, Simone Mulè, Francesca Uberti. Foods. 2025 Jul 30;14(15):2678.

Laboratory studyOther animalsWith Hericium erinaceus, bilberry extract and Centella asiatica

This study tested palmitoylethanolamide together with Hericium erinaceus, bilberry extract and Centella asiatica. Its results cannot be assigned to palmitoylethanolamide alone. More combination studies.

Design
Laboratory study
Subjects
3D intestinal epithelial cell model; co-culture of neuronal and astrocytic cells, under oxidative stress
Dose used in the study
Not stated in the abstract
Duration
Not stated in the abstract
What was measured
Intestinal barrier integrity (TEER, tight junctions); inflammatory markers (NF-kappa-B, TNF-alpha, IL-1beta, IL-6), reactive oxygen species and nitric oxide; mitochondrial activity and antioxidant response; BDNF and NGF; APP, phosphorylated tau, Sirtuin 1 and Nrf2.

What the authors reported

The combination preserved intestinal barrier integrity. Under oxidative stress, it cut inflammatory markers by about 1.5-fold, reactive oxygen species by about 2-fold and nitric oxide by about 1.2-fold versus H2O2 controls, raised BDNF and NGF (about 2.3- and 1.9-fold), lowered APP by about 98% and phosphorylated tau by about 1.6-fold, and raised Sirtuin 1 and Nrf2 (about 3.6- and 3-fold).

Limits of this study

An in vitro cell and gut-brain axis model study; it cannot show effect in people. One author was employed by, and another co-founded, the company noiVita S.r.l.s, which the abstract states had no role in interpreting the data.

Source

PubMed 40807615 · doi:10.3390/foods14152678

Entry checked against the abstract on PubMed on 2026-09-22. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.