Abstract:
The invention is based in part on the discovery that nonselective κ agonists that possess μ receptor-mediated effects in addition to their κ agonist effects can decrease cocaine self-administration more effectively and with fewer undesirable side effects than can highly selective κ agonists. The invention includes a number of new compounds having both nonselective κ opioid receptor agonist activity and additional activity at μ opioid receptors. These compounds are useful for the treatment of cocaine abuse, and can also be radiolabeled for use as imaging agents, e.g., the N-fluoroalkyl and iodoalkyl derivatives can be used, respectively, for positron emission tomography (PET) and single photon computed tomography (SPECT) brain imaging.
Abstract:
Multiple sclerosis (MS) is diagnosed by determining with a quantitative immunoassay the quantity of free kappa light chains in the cerebrospinal fluid of a patient. The immunoassay is preferably a radioimmunoassay. In carrying out the immunoassay, the free kappa light chains are combined with antiserum specific thereto. This method of diagnosing MS has high sensitivity in distinguishing between normal patients and patients affected with MS.
Abstract:
The invention is based in part on the discovery that nonselective κ agonists that possess μ receptor-mediated effects in addition to their κ agonist effects can decrease cocaine self-administration more effectively and with fewer undesirable side effects than can highly selective κ agonists. The invention includes a number of new compounds having both nonselective κ opioid receptor agonist activity and additional activity at μ opioid receptors. These compounds are useful for the treatment of cocaine abuse, and can also be radiolabeled for use as imaging agents, e.g., the N-fluoroalkyl and iodoalkyl derivatives can be used, respectively, for positron emission tomography (PET) and single photon computed tomography (SPECT) brain imaging.