Neuronal maturation in the hippocampal dentate gyrus via chronic oral administration of Artemisa annua extract is independent of cyclooxygenase 2 signaling pathway in diet-induced obesity mouse model
Journal of Veterinary Science
; : 119-127, 2017.
Article
in En
| WPRIM
| ID: wpr-109787
Responsible library:
WPRO
ABSTRACT
Recently, we reported that Artemisia annua (AA) has anti-adipogenic properties in vitro and in vivo. Reduction of adipogenesis by AA treatment may dampen systemic inflammation and protect neurons from cytokine-induced damage. Therefore, the present study was undertaken to assess whether AA increases neuronal maturation by reducing inflammatory responses, such as those mediated by cyclooxygenase 2 (COX-2). Mice were fed normal chow or a high-fat diet with or without chronic daily oral administration of AA extract (0.2 g/10 mL/kg) for 4 weeks; then, changes in their hippocampal dentate gyri were measured via immunohistochemistry/immunofluorescence staining for bromodexoxyuridine, doublecortin, and neuronal nuclei, markers of neuronal maturation, and quantitative western blotting for COX-2 and Iba-1, in order to assess correlations between systemic inflammation (interleukin-6) and food type. Additionally, we tested the effect of AA in an Alzheimer's disease model of Caenorhabditis elegans and uncovered a potential benefit. The results show that chronic AA dosing significantly increases neuronal maturation, particularly in the high-fat diet group. This effect was seen in the absence of any changes in COX-2 levels in mice given the same type of food, pointing to the possibility of alternate anti-inflammatory pathways in the stimulation of neurogenesis and neuro-maturation in a background of obesity.
Key words
Full text:
1
Index:
WPRIM
Main subject:
In Vitro Techniques
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Blotting, Western
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Administration, Oral
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Prostaglandin-Endoperoxide Synthases
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Caenorhabditis elegans
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Dentate Gyrus
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Artemisia annua
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Cyclooxygenase 2
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Adipogenesis
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Neurogenesis
Limits:
Animals
Language:
En
Journal:
Journal of Veterinary Science
Year:
2017
Type:
Article