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Reading: Using new peptide treatment can potentially reverse cognitive decline.
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Gulf Press > Health > Using new peptide treatment can potentially reverse cognitive decline.
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Using new peptide treatment can potentially reverse cognitive decline.

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Last updated: 2024/07/06 at 5:16 AM
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Alzheimer’s disease is a degenerative condition with no cure, but treatments can help alleviate symptoms and slow down the progress of the disease. It is characterized by the buildup of proteins in the brain that disrupt nerve impulse transmission. A recent study in mice, modified to simulate Alzheimer’s symptoms, has shown that a synthetic peptide treatment can reduce protein buildup, restore memory, and improve learning functions. With dementia becoming a growing global issue due to longer life spans, it is estimated that over 150 million people will be affected by 2050. Alzheimer’s symptoms can vary, including memory loss, cognitive deficits, and personality changes, caused by the buildup of beta-amyloid and tau proteins in the brain.

Existing treatments for Alzheimer’s focus on alleviating symptoms, with some new disease-modifying treatments showing promise in clearing protein buildup in the brain. However, these treatments can have side effects that may outweigh their benefits. The new study outlined a potential treatment targeting the tau protein that forms neurofibrillary tangles, impacting nerve impulse transmission across synapses. The synthetic peptide, PHDP5, inhibited the pathway leading to tau buildup and reversed memory and learning deficits in transgenic mice. The study, published in Brain Research, sheds light on a novel treatment pathway for Alzheimer’s disease.

Key to nerve impulse transmission are substances dynamin and microtubules, which recycle vesicles full of neurotransmitter. In Alzheimer’s, tau separates from microtubules, inhibits dynamin, and forms tangles, preventing effective vesicle recycling and nerve impulse transmission. The synthetic peptide PHPD5 released dynamin, restoring communication between synapses in earlier in vitro studies. The researchers administered PHDP5 in transgenic Tau609 mice with tau tangles, memory loss, and neuronal loss. After 4 weeks of treatment, the mice showed improved learning and memory abilities and a cross of the blood-brain barrier into the hippocampus.

The study revealed that treated mice performed similarly to wild-type mice in learning and memory tests, highlighting the potential of the synthetic peptide in reversing cognitive decline associated with Alzheimer’s disease. While the findings in mice are promising, further research is needed to explore potential side effects of the treatment, such as impacts on the kidneys or the nervous system. Despite some concerns, the study suggests that the treatment could help alleviate learning and memory problems in people with Alzheimer’s disease. The research on the synthetic peptide PHDP5 represents a significant advancement in the search for effective Alzheimer’s treatments and could pave the way for new therapies to delay cognitive symptoms in the disease.

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News Room July 6, 2024
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