Changes in gut microbiota during development of compulsive checking and locomotor sensitization induced by chronic treatment with the dopamine agonist quinpirole
| Autor: | Boris Sakic, Michael G. Surette, Anna Dvorkin-Gheva, Paul S. Jung, Lucshman Raveendran, Tony D. Jung, Yasamin Farbod, Henry Szechtman |
|---|---|
| Přispěvatelé: | Psychiatry & Behavioural Neurosciences |
| Rok vydání: | 2018 |
| Předmět: |
Male
0301 basic medicine Obsessive-Compulsive Disorder medicine.medical_specialty Quinpirole medicine.medical_treatment Motor Activity Gut flora Dopamine agonist Open field Receptors Dopamine 03 medical and health sciences 0302 clinical medicine RNA Ribosomal 16S Internal medicine medicine Animals Rats Long-Evans Receptor Saline Pharmacology Behavior Animal biology Lachnospiraceae biology.organism_classification Gastrointestinal Microbiome Rats Disease Models Animal Psychiatry and Mental health 030104 developmental biology Endocrinology Compulsive behavior Dopamine Agonists Compulsive Behavior Stereotyped Behavior medicine.symptom Locomotion 030217 neurology & neurosurgery medicine.drug |
| Zdroj: | Behavioural Pharmacology. 29:211-224 |
| ISSN: | 0955-8810 |
| Popis: | Long-term treatment of rats with the D2/D3 dopamine agonist quinpirole induces compulsive checking (proposed as animal model of obsessive-compulsive disorder) and locomotor sensitization. The mechanisms by which long-term use of quinpirole produces those behavioral transformations are not known. Here we examined whether changes in gut microbiota play a role in these behavioral phenomena, by monitoring the development of compulsive checking and locomotor sensitization at the same time as measuring the response of gut microbiota to chronic quinpirole injections. Two groups of rats received nine injections of saline (n=16) or quinpirole (n=15; 0.25 mg/kg), at weekly intervals for the first 5 weeks and then two injections per week until the end of treatment. After each injection, rats were placed on a large open field for 55 min, and their behavior was video recorded for subsequent analysis. Fecal matter was collected after each trial and frozen for bacterial community profiling of the 16S rRNA gene, using paired-end reads of the V3 region. The results indicated that the induction of locomotor sensitization and compulsive checking was accompanied by changes in several communities of bacteria belonging to the order Clostridiales (class Clostridia, phylum Firmicutes), and predominantly in Lachnospiraceae and Ruminococcaceae families of bacteria. It is suggested that changes in these microbes may serve to support the energy use requirements of compulsive checking and obsessive-compulsive disorder. |
| Databáze: | OpenAIRE |
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