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Mediterranean Plants Contain Compounds That Treats Alzheimer’s, Parkinson’s Disease
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Mediterranean Plants Contain Compounds That Treats Alzheimerís, Parkinsonís Disease

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Highlights
  • Prickly pear and brown seaweed are two ubiquitous Mediterranean plants that have neurodegenerative disease-curing properties.
  • Alpha-synuclein, a protein in the plant extract increased the lifespan of fruit flies induced with Alzheimerís disease.

Chemicals extracted from the prickly pear and brown seaweed, two ubiquitous Mediterranean plants, have been elevated to possible drug candidates to combat the neurodegenerative diseases.

Alzheimer's and Parkinson's disease are classic age-related disorders characterised by the accumulation of sticky protein clumps that over time damage the nervous system to erode mobility or memory. The human suffering they cause, as well as the strain on healthcare, are enormous. But there is hope on the horizon.

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Mediterranean Plants Contain Compounds That Treats Alzheimerís, Parkinsonís Disease

"We have long been screening plants scattered across the Mediterranean for small molecules that interfere with the build-up of toxic protein aggregates. The robust effects of chemicals derived from the prickly pear and brown seaweed confirm that our search has certainly not been in vain," said study co-author Neville Vassallo, MD, PhD, professor of molecular physiology at the University of Malta School of Medicine and Surgery.

The effect of the plant extracts was tested on brewer's yeast brimming with beta-amyloid clumps, a hallmark of Alzheimer's disease. Following exposure to the chemicals, the yeast's health improved dramatically, a result that encouraged the researchers to evaluate the molecules on fruit flies which had been genetically modified to develop Alzheimer's symptoms.
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On regular treatment with seaweed extract, the median lifespan of diseased flies was prolonged by two days. A greater four-day extension was observed when prickly pear extract was administered.

Considering that one day in the life of a fruit fly is equivalent to around one year in humans, the results are dramatic. Interestingly, the mobility of sick flies was improved by about 18% after treatment, highlighting a significant improvement.

Scientists also discovered that the substances prolonged the lifespan of flies with brains overloaded with alpha-synuclein, a gummy protein implicated in Parkinson's disease, hence, underscoring an effect on neurodegenerative mechanisms shared by both Alzheimer's and Parkinson's disease.

To this end, they found that the plant-derived molecules interfered with the build-up of both beta-amyloid and alpha-synuclein proteins to generate clumps that are less toxic to neurons.

Lead study author Ruben J. Cauchi, PhD, a faculty member at the Centre for Molecular Medicine and Biobanking of the University of Malta, remarked, "We believe that the discovery of bioactive agents that target pathways that are hit by multiple neurodegenerative conditions is the most viable approach in our current fight against brain disorders. A clear advantage of the drugs used in this study is that, in view of their excellent safety profile, they are already on the market as nutraceuticals and cosmeceuticals".

Reference
  1. Briffa, M.et al., Extracts from two ubiquitous Mediterranean plants ameliorate cellular and animal models of neurodegenerative proteinopathies, Neuroscience Letters (2017) http:dx.doi.org/10.1016/j.neulet.2016.11.058 .


Source: Medindia

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