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National Institutes of Health, Public Health Service, DHHS.
The inventions listed below are owned by an agency of the U.S. Government and are available for licensing in the U.S. in accordance with 35 U.S.C. 207 to achieve expeditious commercialization of results of federally-funded research and development. Foreign patent applications are filed on selected inventions to extend market coverage for companies and may also be available for licensing.
Licensing information and copies of the U.S. patent applications listed below may be obtained by writing to the indicated licensing contact at the Office of Technology Transfer, National Institutes of Health, 6011 Executive Boulevard, Suite 325, Rockville, Maryland 20852-3804; telephone: (301) 496-7057; fax: (301) 402-0220. A signed Confidential Disclosure Agreement will be required to receive copies of the patent applications.
Improved Endogenous Opioid Anti-Nociception With Reduced Neurodegeneration, Hyperalgesia, Allodynia and Tolerance
Amina Woods, Toni Shippenberg, and Lawrence Sharp (NIDA).
U.S. Provisional Application No. 60/459,830 filed 01 Apr 2003 (DHHS Reference No. E-276-2001/0-US-01).
Licensing Contact: Norbert Pontzer; (301) 435-5502; firstname.lastname@example.org.
Endogenous opioid peptides and receptors evolved to modulate nociceptive input in response to injury. One of those peptides, dynorphin, acts on the kappa opioid receptor subtype to produce analgesia without sedation, respiratory depression or constipation. Prior to this invention, dynorphin was not an acceptable analgesic because of certain severe toxic side effects, when given in doses higher than physiological concentrations, mainly NMDA mediated neurotoxicity. Dynorphin produces its deleterious side effects by producing an NMDA mediated motor paralysis. In disease states such as stroke, spinal cord injury or neuropathic pain, activation of NMDA receptors by endogenous dynorphin may lead to neurodegeneration, hyperalgesia and allodynia. Tolerance to opiate drugs may also be mediated by the NMDA actions of dynorphin. This invention provides materials and methods to block NMDA receptor activation by dynorphin thus allowing the use of exogenous dynorphin as a beneficial nociceptive agent without side effects and preventing pathological actions of endogenous dynorphin in response to injury. Experimental data demonstrate: (1) attenuation of motor activity deficits, flaccid paralysis and mechanical allodynia produced by dynorphin administration; (2) reduction of infarct size and locomotor deficits after cerebral ischemia; (3) the reduction of morphine tolerization; and (4) so far no visible side effects.
Pain Control by the Selective Local Ablation of Nociceptive Neurons
Michael Iadarola and Zoltan Olah (NIDCR).
PCT/US01/09425 filed 22 Mar 2001, published as WO 02/076444 (DHHS Reference No. E-109-2000/0-PCT-02).
Licensing Contact: Norbert Pontzer; (301) 435-5502; email@example.com.
The vanilloid receptor (VR) is a cation channel predominantly expressed on the peripheral processes and perikarya of nociceptive primary afferent neurons. Previous studies have shown that activation of the peripheral receptors by agonists such as capsaicin from hot peppers, or the much more potent resiniferatoxin, produces acute pain sensation which may be followed by desensitization. These inventors discovered that administration of VR agonists in the vicinity of neuronal cell bodies expressing the VR receptor can actually destroy those cells. To control pain and inflammatory disorders, the present invention provides methods and kits for the selective ablation of pain sensing neurons. For example, the intraganglionic administration of a VR agonist selectively ablates primary afferent nociceptive neurons without impairing other sensory modalities. This invention will greatly enhance the ability to control pain, inflammation and other conditions mediated by nociceptive neurons while sparing mental function and other sensations.
This research has been described, in part, in Olah et al., J. Biol. Chem., 276, pp. 11021-11030, 2001.Start Signature
Dated: December 17, 2003.
Steven M. Ferguson,
Director, Division of Technology Development and Transfer, Office of Technology Transfer, National Institutes of Health.
[FR Doc. 03-31653 Filed 12-22-03; 8:45 am]
BILLING CODE 4140-01-P