Abstract: Described herein are methods and compositions related to a method of treating a neurodevelopmental disorder in a subject in need thereof, the method comprises administering to the subject an agent that increases the level or activity of interleukin-17a (IL-17a) in the brain. The method can further comprise administering an agent that increases the permeability of the blood brain barrier.

Abstract: Steroid compounds are disclosed that have a formula represented by the following: (I) and wherein R1, R2, R3a, R3b, R4a, R4b, R5, R6a, R6b, R7, R8, and n are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for promoting differentiation of T regulatory (Treg) lymphocytes, and for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, and graft-versus-host disease.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Provided is a method for identifying and reducing the risk of a female subject producing an offspring having a neurodevelopmental disorder. The method comprises detecting in the subject the presence of gut bacteria that promote Th17 cell biogenesis. If such bacteria are detected, the individual can be administered a therapy that inhibits the growth or Th17 cell biogenesis promoting activity of the bacteria, and/or reduces the activity of the Th17 cells in the gut.

Abstract: The present invention provides a method for reducing the risk of developing a psychiatric disorder (e.g., ASD, of which autism is a particular example) in a fetus comprising administering an inhibitor of T helper 17 (Th17) cell activity to the mother of the fetus, while the mother is pregnant with the fetus. The invention further relates to the use and application of compounds or agents that inhibit Th17 activity or that inhibit IL-17a or IL-17 signaling for reducing fetal risk for developing a psychiatric disorder. The invention relates to compounds or agents that inhibit Th17 activity or that inhibit IL-17a for reducing fetal risk for developing a psychiatric disorder, such as ASD, and use of such compounds or agents in the preparation of a medicament for reducing fetal risk for developing a psychiatric disorder.

Abstract: Methods are presented herein for reducing the risk of developing a psychiatric disorder (e.g., autism like disorder) in a fetus involving administering an inhibitor of T helper 17 (Th17) cell activity to the mother of the fetus, while the mother is pregnant with the fetus at risk. Also encompassed herein is a method for treating a fetus in utero to reduce the risk of abnormal cortical development that arises from Th17 cell-mediated activity.

Abstract: Methods for treating subjects afflicted with a psychiatric disorders [e.g., autism spectrum disorder (ASD), schizophrenia, and/or depression] are described herein. More particularly, the present invention relates to a method for treating a subject afflicted with or at risk for developing a psychiatric disorder (e.g., ASD, of which autism is a particular example) that calls for selecting a subject afflicted with or at risk for developing the psychiatric disorder based in part on previous in utero exposure to maternal immune activation (MIA) and treating the subject by administering pharmacological agents or implementing optogenetic tools or chemogenetic tools that correct dysregulated neuronal excitation/inhibition (E/I) ratios in cortical patches of the subject wherein the E/I ratio is dysregulated. A subject may also be selected for treatment using methods described herein based on the presence or detection of cortical patches having dysregulated neuronal E/I ratios.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein Cy1, Cy2, n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Steroid compounds are disclosed that have a formula represented by the following: and wherein m, n, t, u1, u2, v1, v2, R1a, R1b, R2a, R2b, R3a, R3b, R3c, R3d, and Y are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the treatment or prevention of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Methods are presented herein for reducing the risk of developing a psychiatric disorder (e.g., autism like disorder) in a fetus involving administering an inhibitor of T helper 17 (Th17) cell activity to the mother of the fetus, while the mother is pregnant with the fetus at risk. Also encompassed herein is a method for treating a fetus in utero to reduce the risk of abnormal cortical development that arises from Th17 cell-mediated activity.

Abstract: Heterocyclic compounds, and pharmaceutical compositions thereof, are disclosed as ROR?t modulators that have a formula represented by the following: and wherein n1, n2, R1, R2, R3, and R4 are as described herein. These compounds may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein Cy1, Cy2, n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Steroid compounds are disclosed that have a formula represented by the following: and wherein m, n, t, u1, u2, v1, v2, R1a, R1b, R2a, R2b, R3a, R3b, R3c, R3d, and Y are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the treatment or prevention of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Amido compounds are disclosed that have a formula represented by the following: and wherein n1, n2, R1a, R1b, R2, R3, R4, R5, and R6 are as described herein. The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.

Abstract: Heterocyclic compounds, and pharmaceutical compositions thereof, are disclosed as ROR?t modulators that have a formula represented by the following: and wherein n1, n2, R1, R2, R3, and R4 are as described herein. These compounds may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, inflammatory conditions, autoimmune disorders, cancer, and graft-versus-host disease.