Brewing hope – how used coffee grounds may combat Alzheimer’s and Parkinson’s
In the relentless battle against neurodegenerative disorders such as Alzheimer’s, Parkinson’s, and Huntington’s, a groundbreaking discovery emerges from The University of Texas at El Paso. Researchers, exploring the unlikeliest of sources—spent coffee grounds—have unearthed a potential weapon against these debilitating conditions that afflict millions and strain healthcare budgets with hundreds of billions in annual costs.
Leading the charge is Jyotish Kumar, a doctoral student in the Department of Chemistry and Biochemistry, along with Mahesh Narayan, Ph.D., a distinguished professor and Royal Society of Chemistry Fellow. Their team has identified caffeic-acid based Carbon Quantum Dots (CACQDs), derivable from used coffee grounds, as a promising agent in shielding brain cells from damage typically associated with neurodegenerative diseases, particularly those exacerbated by factors like obesity, aging, and exposure to environmental toxins.
Their findings, detailed in the journal Environmental Research, mark a significant leap forward. “CACQDs could revolutionize neurodegenerative disease treatment,” Kumar states. Unlike existing therapies that merely manage symptoms, CACQDs aim at the root causes – the molecular triggers of these ailments. Neurodegenerative diseases, characterized by neuron loss, impair basic and complex functions—from movement and speech to cognitive abilities.
Lifestyle and environmental factors in early stages of these diseases often lead to increased free radicals and amyloid protein fragment aggregation in the brain, contributing to the progression of these conditions. Kumar’s team discovered that CACQDs offer neuroprotection in various models of Parkinson’s disease, particularly those induced by the pesticide paraquat. The CACQDs demonstrated an ability to neutralize free radicals and prevent amyloid protein aggregation, all without notable side effects.
This breakthrough suggests that early intervention with CACQD-based treatments could thwart the full onset of diseases like Alzheimer’s and Parkinson’s. Caffeic acid, a polyphenol known for its antioxidant properties, is uniquely capable of crossing the blood-brain barrier, thus directly impacting brain cells. The team’s “green chemistry” approach to extracting CACQDs from coffee waste—cooking grounds at 200° for four hours—is both eco-friendly and cost-effective, making this a sustainable solution.
The project, encompassing contributions from numerous UTEP graduate and undergraduate students, including Sofia Delgado, now a Ph.D. student at Yale University, signifies a collective effort in scientific advancement. While Narayan and Kumar acknowledge the journey ahead is long, the potential of developing a simple, pill-based preventative treatment for the majority of non-genetically caused neurodegenerative disorders remains a beacon of hope.