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Thread: Possible new treatment for spinal cord injuries identified in animal studies

  1. #1
    Senior Member mj23's Avatar
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    Possible new treatment for spinal cord injuries identified in animal studies

    Possible new treatment for spinal cord injuries identified in animal studies

    June 11, 2018 by Steve Tally, Purdue University

    A potential new drug therapy for spinal cord injuries has been identified by researchers at Purdue University. The drug was identified by Riyi Shi, professor in the Department of Basic Medical Sciences, College of Veterinary Medicine and ?moreAn experimental drug has shown promise as a potential therapy for spinal cord injuries in animal studies.

    The compound, 4-aminopyridine-3-methanol, works in a similar way as a drugpreviously developed at Purdue, 4-aminopyridine (4-AP), which has been approved by the U.S. Food and Drug Administration to treat multiple sclerosis.
    Dr. Riyi Shi, professor in the Department of Basic Medical Sciences, College of Veterinary Medicine and Weldon School of Biomedical Engineering, who was involved in the development of both drugs, compared the two compounds in both cell cultures and animal models.
    "For the first time, 4-aminopyridine-3-methanol is shown to restore function in chronic spinal cord injuries," he says. "It also reduces neuropathic pain to a greater degree than 4-AP.
    "Because persistent chronic pain is a serious problem among patients with spinal cord injuries, 4-aminopyridine-3-methanol could potentially be used to reduce pain, independent of any motor benefits."
    Shi says an advantage of this drug is its broad therapeutic dosing range. "The minimum effective dose can be as low as 10 times less than 4-AP, but it can also be applied at a level that is five times as high."
    In spinal injuries even if the nerve fibers of the spinal cord itself, the axons, are intact, function can still be lost if there is damage to the fatty coating on the outside of nerve fibers, which is called the myelin sheath. When the myelin sheath is damaged, potassium channels underneath the coating open, disrupting the electrical signal. Both drugs work by closing these channels to restore the conduction of the axons.
    "We are very encouraged by this preclinical study because about 10 years ago 4-AP, which is marketed as fampridine, dalfampridine, or Ampyra, was approved for MS, and both spinal cord injuries and MS share a similar mechanism of nerve signal conduction loss; they both could be caused by myelin damage," Shi says. "The drug was approved for MS but not approved for spinal cord injuries because of concerns about potential toxicity and a narrow therapeutic dose range. So there is a big need for a better channel blocker."
    Shi and his team found that 4-aminopyridine-3-methanol is safer, more effective at closing the potassium channels?at least 50 percent more effective?and also much longer lasting.
    The research is published in the May Journal of Neurotrauma, and was funded by the National Institutes of Health (grant No. R01NS073636), the state of Indiana (grant No. 206424), the Science and Technology Commission of Shanghai Municipality, Shanghai, China (grant No. 13430722100), and grants from the Shanghai Bureau of Health, Shanghai, China (grant No. XBR2011024).
    Shi is the co-founder of Neuro Vigor, a startup company with business interests of developing effective therapies for central nervous system neurodegenerative diseases and trauma.
    Explore further: Experimental drug restores some bladder function after spinal cord injury, study finds
    More information: Jessica C. Page et al. Parallel Evaluation of Two Potassium Channel Blockers in Restoring Conduction in Mechanical Spinal Cord Injury in Rat, Journal of Neurotrauma (2017). DOI: 10.1089/neu.2017.5297

    https://medicalxpress.com/news/2018-...es-animal.html
    C-5, 6 SCI. Took about 6 months to walk. Walking full time. Without any assistance since Nov. 2003 and will make a full recovery

  2. #2
    Well, duh. I've known about 4-AP-3-MeOH for many years and have used it for much better results than 4-AP. I was getting it from a private London pharmaceutical that has changed hands, it seems, and doesn't reply to my emails. I'm desperate to use it! That place is mod4all.com..-Jan

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    Is there a good place to get 4-AP-3-MeOH currently? I tried mod4all and they took my money and never sent my order.

  4. #4
    I tried it as as well, was more scared than if I'd bought crack on the street when I was taking it.
    Unfortunately it didn't do anything :-(

    I'm complete though, does it have more effect on incomplete injuries?

  5. #5
    Be nice to be able to use this now just so it feels like I’m trying something to improve.

    Article is disappointing because all of this information has been known for years. It’ll be at least 8+ years before this could be available as a prescription if they had a motivated staff to see push through. I always thought they ran the 4ap trial terribly for SCI, this type of treatment Won’t have much or any benefit for A’s and B’s. My understanding is it will just improve the signals that are getting through, mainly helping the C’s and D’s.

  6. #6
    IJ, that's terrible! Wow. I used to get 4ap3meoh at mod4all, but think that guy died and his friend isn't as competent or trustworthy. I don't get responses back from him since Sept. I wish I knew of another distributor. When will Phase 2 clinical trials begin and where? Anyone?

  7. #7
    Yes, much more effective if you're incomplete. I've been using a walker briefly too...

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