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The clinical implications of mouse models of enhanced anxiety.

ABSTRACT: Mice are increasingly overtaking the rat model organism in important aspects of anxiety research, including drug development. However, translating the results obtained in mouse studies into information that can be applied in clinics remains challenging. One reason may be that most of the studies so far have used animals displaying 'normal' anxiety rather than 'psychopathological' animal models with abnormal (elevated) anxiety, which more closely reflect core features and sensitivities to therapeutic interventions of human anxiety disorders, and which would, thus, narrow the translational gap. Here, we discuss manipulations aimed at persistently enhancing anxiety-related behavior in the laboratory mouse using phenotypic selection, genetic techniques and/or environmental manipulations. It is hoped that such models with enhanced construct validity will provide improved ways of studying the neurobiology and treatment of pathological anxiety. Examples of findings from mouse models of enhanced anxiety-related behavior will be discussed, as well as their relation to findings in anxiety disorder patients regarding neuroanatomy, neurobiology, genetic involvement and epigenetic modifications. Finally, we highlight novel targets for potential anxiolytic pharmacotherapeutics that have been established with the help of research involving mice. Since the use of psychopathological mouse models is only just beginning to increase, it is still unclear as to the extent to which such approaches will enhance the success rate of drug development in translating identified therapeutic targets into clinical trials and, thus, helping to introduce the next anxiolytic class of drugs.

SUBMITTER: Sartori SB

PROVIDER: S-EPMC3166843 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

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The clinical implications of mouse models of enhanced anxiety.

Sartori Simone B SB Landgraf Rainer R Singewald Nicolas N

Future neurology 20110701 4

Mice are increasingly overtaking the rat model organism in important aspects of anxiety research, including drug development. However, translating the results obtained in mouse studies into information that can be applied in clinics remains challenging. One reason may be that most of the studies so far have used animals displaying 'normal' anxiety rather than 'psychopathological' animal models with abnormal (elevated) anxiety, which more closely reflect core features and sensitivities to therape ...[more]

PMID: 21901080

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Project description:BackgroundControlled evaluations comparing medication, cognitive-behavioral therapy (CBT), and their combination in the treatment of youth anxiety have predominantly focused on global ratings by independent evaluators. Such ratings are resource-intensive, may be of limited generalizability, and do not directly inform our understanding of treatment responses from the perspective of treated families. We examined outcomes from the perspective of treated youth and parents in the Child/Adolescent Anxiety Multimodal Study (CAMS).MethodsParticipants (N=488; ages 7-17 years) who had a primary diagnosis of separation, social, and/or generalized anxiety disorder were randomly assigned to a treatment condition in the CAMS trial. Linear mixed-effects and ANCOVA models examined parent- and youth-reported anxiety symptoms, impact of anxiety, broader internalizing and externalizing psychopathology, depressive symptoms, and family burden throughout the 12-week acute treatment phase and 6-month follow-up.ResultsAt week 12, combination treatment showed superiority over placebo, sertraline, and CBT with regard to parent-reported youth anxiety symptoms, and sertraline and CBT as monotherapies showed superiority over placebo with regard to parent-reported youth anxiety. Combination therapy and sertraline also showed week 12 superiority over placebo with regard to parent-reported internalizing psychopathology, and superiority over placebo and CBT with regard to parent-reported impact of anxiety, family burden, and youth depressive symptoms. By week 36, parent reports of many youth outcomes were comparable across active conditions. Youth measures tracked parent measures on many outcomes.ConclusionsFindings were drawn on brief, readily available questionnaires that in conjunction with clinician measures can inform patient-centered care and collaborative decision-making.Trial Registry Name: Child and Adolescent Anxiety Disorders (CAMS)Registry identification number: NCT00052078Registry URL: https://www.clinicaltrials.gov/ct2/show/NCT00052078.

Dataset Information

The clinical implications of mouse models of enhanced anxiety.

Publications

The clinical implications of mouse models of enhanced anxiety.

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