Abstract: Provided are methods of enhancing bioavailability of enterally administered 5-hydroxytryptophan (5-HTP) in a subject in need thereof, said method comprising enterally co-administering low-dose carbidopa with said 5-HTP, as well as pharmaceutical formulations useful for the same. In some embodiments, the 5-HTP and/or low-dose carbidopa are provided as slow-release formulation(s).

Abstract: Provided are methods of enhancing bioavailability of enterally administered 5-hydroxytryptophan (5-HTP) in a subject in need thereof, said method comprising enterally co-administering low-dose carbidopa with said 5-HTP, as well as pharmaceutical formulations useful for the same. In some embodiments, the 5-HTP and/or low-dose carbidopa are provided as slow-release formulation(s).

Abstract: The present invention provides, inter alia, methods for treating or ameliorating a gastrointestinal (GI) condition such as constipation in a subject in need thereof, using a sustained release formulation of 5-hydroxytryptophan (5-HTP SR). A kit comprising 5-HTP SR is also provided.

Abstract: The present invention is directed to a method of treating Parkinson's disease using arylcyclopropylamine compounds. The arylcyclopropylamine compounds have the following formula wherein R1, R2, R3, R4, R5 and R6 are described herein.

Abstract: The present invention concerns the treatment of serotonergic dysregulation disordersand/or augmentation of serotonin levels in the brain by add-on treatments to serotonin enhancers, and slow-release formulations of 5-hydroxytryptophan (5-HTP) therefor.

Abstract: The present invention concerns the treatment of serotonergic dysregulation disorders and/or augmentation of serotonin levels in the brain by add-on treatments to serotonin enhancers, and slow-release formulations of 5-hydroxytryptophan (5-HTP) therefor.

Abstract: Recombinant non-human mammals having reduced or no expression of vesicular acetylcholine transporter protein (VAChT) as compared to the corresponding wild-type mammal are provided. The mammal may have, e.g., impaired performance in object and social recognition and/or impaired neuromuscular performance and/or alterations in autonomic nervous system function as compared to the corresponding wild-type mammal. Methods of screening a compound for cholinergic activity or activity in treating a cholinergic neurotransmission disorder are also provided. In addition, a cell such as a nerve cell isolated from a mammal as described herein is provided, along with cell cultures, which are useful in vitro for screening the activity of candidate compounds for their effect on cholinergic neurotransmission, and for their activity in treating cholinergic neurotransmission disorders.

Abstract: Described herein are methods of treating Parkinson's disease using arylcyclopropylamine compounds.

Abstract: A method of treating a subject for Parkinson's disease comprises administering said subject a phenylisopropylamine in an amount effective to treat said Parkinson's disease. In some embodiments the method is used to treat at least a motor symptom of Parkinson's disease; in some embodiments the method is used to treat at least a non-motor symptom of Parkinson's disease.

Abstract: A method of treating a subject for Parkinson's disease comprises administering said subject a phenylisopropylamine in an amount effective to treat said Parkinson's disease. In some embodiments the method is used to treat at least a motor symptom of Parkinson's disease; in some embodiments the method is used to treat at least a non-motor symptom of Parkinson's disease.

Abstract: A method of treating a subject for a serotonergic neurotransmission dysregulation disorder, comprises administering the subject a serotonin enhancer (e.g., a serotonin reuptake inhibitor) in an amount effective to treat the disorder; and concurrently administering the subject 5-hydroxytryptophan in an amount effective to enhance the activity of the serotonin enhancer, (e.g., serotonin reuptake inhibitor). In preferred embodiments the disorder is depression, anxiety, or substance abuse.

Abstract: The present invention concerns the treatment of serotonergic dysregulation disorders and/or augmentation of serotonin levels in the brain by add-on treatments to serotonin enhancers, and slow-release formulations of 5-hydroxytryptophan (5-HTP) therefor.

Abstract: Recombinant or transgenic non-human mammals are described having a mutant tryptophan hydroxylase 2 (Tph2) gene resulting in altered synthesis of 5-hydroxytryptophan and serotonin in the brain. In some embodiments the mutant tryptophan hydroxylase 2 gene contains mouse R439H and/or P447R functional mutations, or their corresponding mutations in other species. Congenic non-human mammals having mutant tryptophan hydroxylase 2 genes are also provided. Methods of screening a compound for serotonergic activity or activity in treating a serotonergic neurotransmission dysregulation disorder are provided, which include administering a test compound to a recombinant non-human mammal and then detecting the presence or absence of serotonergic activity, or activity in treating a serotonergic neurotransmission dysregulation disorder, in the mammal. A cell such as a nerve cell (e.g.

Abstract: A method of screening a candidate compound for ?Arrestin mediated anti-G protein coupled receptor signaling activity is comprises: (a) contacting said candidate compound to a ?Arrestin signaling complex or a constituent thereof, under conditions in which a signaling complex is formed; and then (b) detecting the presence or absence of disruption of said signaling complex, disruption of said complex indicating said compound has ?Arrestin mediated anti-G protein coupled receptor signaling activity. Compositions and kits for carrying out the method are also described.

Abstract: A method of screening a subject for a serotonergic neurotransmission dysregulation disorder comprises detecting the presence or absence of an Tph2 mutation in the subject; and then determining that the subject is at increased risk of a serotonergic neurotransmission dysregulation disorder due to the presence or absence of the Tph2 mutation.

Abstract: A method of screening a candidate compound for ?Arrestin mediated anti-G protein coupled receptor signaling activity is comprises: (a) contacting said candidate compound to a ?Arrestin signaling complex or a constituent thereof, under conditions in which a signaling complex is formed; and then (b) detecting the presence or absence of disruption of said signaling complex, disruption of said complex indicating said compound has ?Arrestin mediated anti-G protein coupled receptor signaling activity. Compositions and kits for carrying out the method are also described.

Abstract: A method of screening a candidate compound for ?Arrestin mediated anti-G protein coupled receptor signaling activity is comprises: (a) contacting said candidate compound to a ?Arrestin signaling complex or a constituent thereof, under conditions in which a signaling complex is formed; and then (b) detecting the presence or absence of disruption of said signaling complex, disruption of said complex indicating said compound has ?Arrestin mediated anti-G protein coupled receptor signaling activity. Compositions and kits for carrying out the method are also described.

Abstract: The invention relates to a screening method for the Smoothened receptor for testing compositions as potential Smoothened receptor ligands, either agonist or antagonist activity, by use of an arrestin-reporter molecule conjugate. It also relates to testing cells and individuals by administering a smoothened receptor ligand-reporter molecule conjugate and observing locations where the ligand binds and then using an increased number of surface Smoothened receptors compared to a pre-established criteria as an indication of a cancerous growth or tumor.

Abstract: The present invention is related to the detection of GPCR ligands in a test sample by using a single cell biosensor expressing a GPCR. Preferably, the test sample is derived from a biological or environmental sample. This invention may be used to detect the presence of a disease or to detect the presence of a harmful agent in the environment. Included in the present invention is an array of biosensors that detect ligands of various GPCRs.

Abstract: A method of screening a subject for a serotonergic neurotransmission dysregulation disorder comprises detecting the presence or absence of an Tph2 mutation in the subject; and then determining that the subject is at increased risk of a serotonergic neurotransmission dysregulation disorder due to the presence or absence of the Tph2 mutation.