Abstract: The invention features a method of screening for an agent that inhibits intracellular phosphodiesterase 10A activity, comprising administering an agent to striatal medium spiny neurons and submaximally activating adenylate cyclase, administering an agent to striatal medium spiny neurons and submaximally activating guanylate cyclase, measuring cAMP generation and cGMP generation in the cells, and calculating the cAMP EC200 and the cGMP EC200, wherein the agent is identified as a PDE10A inhibitor if the ratio of cAMP EC200/cGMP EC200 is comparable to the ratio produced by administration of papaverine under the same assay conditions. Also featured are rat PDE10A polynucleotide and polypeptide sequences.

Abstract: The invention provides a method for treating certain neurologic and psychiatric disorders in mammals, including humans, comprising administration of a selective PDE10 inhbitor. In particular, the invention relates to treatment of mood, movement, and anxiety disorders; psychosis; drug, for example alcohol, addiction; disorders having as a symptom deficient cognition; and neurodegenerative disorders and conditions. The invention furthermore provides the use of papaverine as a selective inhibitor of PDE10. The invention also provides assays for identifying chemical compounds that have activity as selective PDE10 inhibitors.

Abstract: The invention provides a method for treating certain neurologic and psychiatric disorders in mammals, including humans, comprising administration of a selective PDE10 inhbitor. In particular, the invention relates to treatment of mood, movement, and anxiety disorders; psychosis; drug, for example alcohol, addiction; disorders having as a symptom deficient cognition; and neurodegenerative disorders and conditions. The invention furthermore provides the use of papaverine as a selective inhibitor of PDE10. The invention also provides assays for identifying chemical compounds that have activity as selective PDE10 inhibitors.

Abstract: The present invention relates to a method of treating depression or anxiety in a mammal, including a human, by administering to the mammal a CNS-penetrant NK-1 receptor antagonist (e.g., a substance P receptor antagonist) in combination with a PDE IV inhibitor. It also relates to pharmaceutical compositions containing a pharmaceutically acceptable carrier, a CNS-penetrant NK-1 receptor antagonist and a PDE IV inhibitor.

Abstract: The invention features a method of screening for an agent that inhibits intracellular phosphodiesterase 10A activity, comprising administering an agent to striatal medium spiny neurons and submaximally activating adenylate cyclase, administering an agent to striatal medium spiny neurons and submaximally activating guanylate cyclase, measuring cAMP generation and cGMP generation in the cells, and calculating the cAMP EC200 and the cGMP EC200, wherein the agent is identified as a PDE10A inhibitor if the ratio of cAMP EC200/cGMP EC200 is comparable to the ratio produced by administration of papaverine under the same assay conditions. Also featured are rat PDE10A polynucleotide and polypeptide sequences.

Abstract: The invention provides a method for treating certain neurologic and psychiatric disorders in mammals, including humans, comprising administration of a selective PDE10 inhbitor. In particular, the invention relates to treatment of mood, movement, and anxiety disorders; psychosis; drug, for example alcohol, addiction; disorders having as a symptom deficient cognition; and neurodegenerative disorders and conditions. The invention furthermore provides the use of papaverine as a selective inhibitor of PDE10. The invention also provides assays for identifying chemical compounds that have activity as selective PDE10 inhibitors.

Abstract: The invention provides a method for treating certain neurologic and psychiatric disorders in mammals, including humans, comprising administration of a selective PDE10 inhbitor. In particular, the invention relates to treatment of mood, movement, and anxiety disorders; psychosis; drug, for example alcohol, addiction; disorders having as a symptom deficient cognition; and neurodegenerative disorders and conditions. The invention furthermore provides the use of papaverine as a selective inhibitor of PDE10. The invention also provides assays for identifying chemical compounds that have activity as selective PDE10 inhibitors.

Abstract: The invention provides a method for treating certain neurologic and psychiatric disorders in mammals, including humans, comprising administration of a selective PDE10 inhbitor. In particular, the invention relates to treatment of mood, movement, and anxiety disorders; psychosis; drug, for example alcohol, addiction; and disorders having as a symptom deficient cognition. The invention furthermore provides the use of papaverine as a selective inhibitor of PDE10.