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Haloperidol alters circadian clock gene product expression in the mouse brain
- Publication Year :
- 2011
- Publisher :
- Taylor & Francis, 2011.
-
Abstract
- OBJECTIVES: Circadian rhythms are patterns in behavioural and physiological measures that recur on a daily basis and are driven by an endogenous circadian timekeeping system whose molecular machinery consists of a number of clock genes. The typical anti-psychotic haloperidol has previously been shown to induce significant deficiencies in circadian timing in patients. In this study we examined the impact of haloperidol treatment on molecular components of the circadian clock in the mouse brain. METHODS: We examined how haloperidol treatment, either acute (both at day and night) or chronically over 14 days, alters the expression of three clock gene protein products (PER1, PER2, BMAL1) across the mouse brain by means of immunohistochemistry. RESULTS: Chronic haloperidol treatment significantly decreases the expression levels of PER1 in a number of brain areas, including the hippocampus, the prefrontal and cingulate cerebral cortex and the paraventricular nucleus of the hypothalamus. PER2 expression was only altered in the dentate gyrus and the CA3, and BMAL1 expression was only altered in the paraventricular nucleus of the hypothalamus. CONCLUSION: These data indicate that haloperidol has the potential to alter circadian rhythms via modulation of circadian clock gene expression.
- Subjects :
- Male
medicine.medical_specialty
endocrine system
Circadian clock
CLOCK Proteins
Gene Expression
Prefrontal Cortex
Hippocampus
Biology
Gyrus Cinguli
Mice
Circadian Clocks
Internal medicine
medicine
Haloperidol
Animals
Circadian rhythm
Biological Psychiatry
ARNTL Transcription Factors
Brain
Period Circadian Proteins
Mice, Inbred C57BL
CLOCK
PER2
Psychiatry and Mental health
Endocrinology
Hypothalamus
Neuroscience
Antipsychotic Agents
Paraventricular Hypothalamic Nucleus
PER1
medicine.drug
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....68fb3d40685308e7e78e788cb9fd547b