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And now, their bites may now pave the way for novel pain medication thanks to new research published in the Proceedings of the National Academy of Sciences<\/em><\/a>. To be specific, a team of scientists found a specific peptide within the P. muticus<\/em> venom called Pm1a<\/em> that may help manage responses to external stimuli, like pain, through further study.<\/p>\n\n\n\n “In summary, we show here that a single venom peptide can modulate three major determinants of neuronal excitability,” said the researchers in their published paper. To be precise, the Pm1a peptide was isolated from the organic cocktail that was P. muticus<\/em>\u2019s venom; the research team found this specific peptide to play a role in \u201chyperexciting\u201d nerve cells through three major channels: sodium (Na), potassium (K), and calcium (Ca).<\/p>\n\n\n\n Permitting nature\u2019s true course, the venom causes P. muticus<\/em> bite victims to repeatedly feel pain and itching due to its bite; as it turns out, Pm1a is part of the reason why pain neurons keep firing over and over after the tarantula\u2019s bite, causing distinct pain that lasts for days.<\/p>\n\n\n\n The researchers tested their hypothesis by creating a synthetic version of Pm1a, then injecting it into mouse models; with the help of mathematical models, their testing yielded insights into how the venom interacts with nerve cells. As it turns out, this \u201chyperexcitability\u201d appeared in both tarantula bite victims and people with chronic pain issues, leading the team of experts to believe that further studies into P. muticus<\/em> venom can lead to future improvements in the field of pain medication.<\/p>\n\n\n\n “The coordinated modulation of excitatory and inhibitory ion channels involved in pain propagation may represent an economical and effective defense strategy in pain-inducing defensive venoms,\u201d the authors continued in their paper<\/a>.<\/p>\n\n\n\n The team believes that more research is key to revealing even more details about this peculiar connection, adding that \u201c[detailed] studies directed to determine the specific molecular interactions of Pm1a with its many targets may inform the development of pharmacological analogs that could decrease excitability specifically in pain neurons,\u201d the authors told Inverse<\/em><\/a>.<\/p>\n\n\n\nReferences<\/h2>\n\n\n\n
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