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Recent research unveils a promising compound in common kitchen herbs that may help mitigate the effects of Alzheimer’s disease. However, experts caution against any hasty adjustments to your cooking habits.
A study published in the journal Antioxidants earlier this year reveals a compound known as carnosic acid, prevalent in herbs like rosemary and sage. Researchers at the Scripps Research Institute suggest that this compound could offer therapeutic benefits for neurodegenerative diseases, particularly Alzheimer’s.
Potential Benefits of Carnosic Acid
Carnosic acid exhibits remarkable antioxidant and anti-inflammatory properties, as pointed out in the study’s findings. The research team, including postdoctoral associate Piu Banerjee and neurologist Dr. Stuart Lipton, shared insights about their work with Fox News Digital.
According to their findings, administering carnosic acid to mice exhibiting symptoms similar to those of advanced Alzheimer’s resulted in a significant improvement in neuron health and an increase in the number of synapses, or the connections between brain cells. This enhancement in brain health was accompanied by reduced inflammation, particularly inflammation linked to existing anti-amyloid antibody therapies. Additionally, the behavior of the mice in learning and memory tasks improved following treatment with carnosic acid.
Mechanisms of Action
Banerjee and Lipton explain that carnosic acid functions as a prodrug, meaning it remains inactive until it enters the body where it activates under oxidative and inflammatory stress. This unique mechanism enables it to specifically target cells experiencing stress while avoiding healthy brain cells.
The researchers believe that this specificity contributes to its potential safety as a therapeutic option. They assert that carnosic acid may not only be beneficial for individuals with Alzheimer’s but could also improve conditions typically affecting an aging brain.
Cautions from Experts
Despite the promising laboratory results, experts urge caution. Courtney Kloske, director of scientific engagement at the Alzheimer’s Association, noted that while studies involving mouse models provide valuable insights, they do not conclusively demonstrate effectiveness in humans. Kloske emphasized the necessity of human studies to validate these findings.
She stated, “Models are critical for understanding the foundational biology of diseases, yet comprehensive research involving human populations is essential for full validation of these ideas.” Kloske further explained that while the results are intriguing, they should prompt further investigation into the effects of carnosic acid on individuals living with or at risk of developing Alzheimer’s.
The researchers confirmed that cooking with sage or rosemary will not yield the same therapeutic benefits one might expect. Banerjee highlighted, “It’s critical to recognize that one cannot safely consume enough herbs to replicate the effects shown in our studies with the new drug.”
Research Limitations and Advice
The study, backed partially by the National Institutes of Health, does carry certain limitations. Kloske advised individuals against consuming these herbs or carnosic acid prematurely for the purpose of preventing or treating Alzheimer’s or other cognitive impairments.
Dr. Lee Murray, a neurologist from Jackson, Tennessee, echoed Kloske’s sentiments, emphasizing the importance of caution before making dietary changes. According to him, “It is vital to remember that these studies remain preclinical. Currently, there is insufficient clinical evidence to classify rosemary and sage as standard treatment for Alzheimer’s dementia.”
Nonetheless, Dr. Murray acknowledged the encouraging nature of the data, suggesting that it opens potential pathways for future therapies.
A Glimpse Towards the Future
As the researchers look forward, Banerjee expressed hope that human clinical trials for their new drug are on the horizon. She stated, “If effective, this could signify a significant advancement in treatment options for those affected by Alzheimer’s disease. Based on our animal study outcomes, we remain cautiously optimistic about the potential success in human trials.”
For now, it remains important to continue researching and understanding how compounds like carnosic acid might influence brain health and cognitive function in humans. While kitchen herbs like rosemary and sage are known for their culinary flair and aroma, it is clear that their potential medicinal properties deserve closer examination.
