Nikhil Prasad Fact checked by:Thailand Medical News Team Jul 01, 2026 1 day, 2 hours, 48 minutes ago
Medical News: Natural compounds in sorghum could target several Alzheimer’s disease pathways at once
Scientists have uncovered encouraging evidence that naturally occurring polyphenols found in sorghum, particularly black sorghum, may help protect brain cells from many of the damaging processes linked to Alzheimer’s disease. While the findings are still limited to laboratory and computer-based research, the study suggests these plant compounds could one day become valuable complementary therapies for slowing the progression of the devastating neurological disorder.
Black sorghum polyphenols demonstrated powerful multi-target protection against Alzheimer’s-related brain cell
damage in laboratory studies
The research was conducted by scientists from Edith Cowan University, Alzheimer’s Research Australia, Macquarie University, The University of Western Australia, King Saud University, The University of Queensland, Curtin University, and Western Sydney University. This
Medical News report highlights how the team explored several biological mechanisms instead of focusing on just one target.
Looking Beyond Amyloid Plaques
Alzheimer’s disease is best known for the buildup of sticky amyloid-beta proteins in the brain, but researchers now understand that the illness is far more complex. Harmful inflammation, excessive oxidative stress, damage to the energy-producing mitochondria inside cells, and abnormal protein clumping all work together to gradually destroy brain cells.
The scientists examined crude and purified polyphenol extracts from three sorghum varieties—black, red-brown, and red. Using human nerve cell models that mimic important features of Alzheimer’s disease, they investigated whether these extracts could interrupt several disease processes simultaneously.
Remarkable Protection in Laboratory Tests
The strongest results came from black sorghum extracts. Laboratory experiments showed that the sorghum polyphenols reduced amyloid-beta 42 aggregation by approximately 67 to 76 percent, preventing the formation of the toxic protein clumps believed to damage neurons. Purified extracts consistently outperformed crude extracts.
The treatments also improved survival of brain cells exposed to amyloid toxicity. In several experiments, cell viability increased by more than 70 percent, while purified extracts restored cell survival to levels approaching those seen in healthy control cells.
Researchers also observed major improvements in mitochondrial health. Since mitochondria generate the energy needed for normal brain function, preserving their activity is considered crucial. The best-performing extracts restored ATP production, the cell's main energy source, and increased mitochondrial activity by more than 80 percent, suggesting healthier and more resilient cells.
Fighting Oxidative Stress and Inflammation
Another major finding involved oxidat
ive stress, a damaging process caused by excessive reactive oxygen molecules.
Cells treated with sorghum extracts produced far lower levels of these harmful molecules. At the same time, important natural antioxidant enzymes, including catalase and peroxidase, became significantly more active, giving cells stronger defenses against oxidative injury.
Western blot analysis further revealed that the extracts removed large amounts of toxic amyloid-beta oligomers. Depending on the extract used, these dangerous protein clusters were reduced by 75 to 89 percent, while normal protein forms remained largely unaffected.
Genetic analysis provided additional insight. RNA sequencing showed that sorghum polyphenols switched down several inflammation-related genes, including those involved in the MAPK and NF-κB signaling pathways, while boosting activity of FSP1, a protein that helps protect cells from ferroptosis, a destructive form of iron-dependent cell death increasingly linked to Alzheimer’s disease.
Computer modeling also demonstrated that quercetin, one of the important polyphenols found in sorghum, could strongly bind to numerous proteins involved in inflammation, oxidative stress, protein aggregation, and neuronal injury.
A Promising Step Forward
Although the results are highly encouraging, the researchers emphasize that these experiments were performed using cultured cells and computational analyses rather than human patients. Animal studies, brain organoid research, and eventually clinical trials will be needed before sorghum-derived polyphenols can be considered as potential therapies.
Still, the study presents compelling evidence that these natural compounds do not attack just one aspect of Alzheimer’s disease. Instead, they appear to protect nerve cells through multiple mechanisms, reducing protein aggregation, lowering inflammation, preserving cellular energy production, strengthening antioxidant defenses, and improving overall neuronal resilience. If future studies confirm these findings in living organisms and ultimately in people, sorghum polyphenols could emerge as an affordable, food-derived complementary strategy that works alongside future Alzheimer’s treatments rather than replacing them.
The study findings were published in the peer reviewed journal: Nutrients.
https://www.mdpi.com/2072-6643/18/13/2121
For the latest on herbs and phytochemicals and Alzheimer’s disease, keep on logging to Thailand
Medical News.
Read Also:
https://www.thailandmedical.news/articles/alzheimer,-dementia-
https://www.thailandmedical.news/articles/herbs-and-phytochemicals
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