|
|
NUITFRANCE - Bibliothèque - Fiche bibliographique
Bibliothèque
Cette rubrique recense :
- de la documentation sur les différents thèmes de la nuit (vie nocturne, pollution lumineuse, pollution sonore, ...).
- les données informatiques relatives à l'éclairage public digitalisées et mises à dispositions en open data par certaines communes,
Fil d'Ariane : Accueil >> Bibliothèque >> Fiche bibliographique
Permalien : http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique
Quelques tags associés : [ DOCUMENTATION, PUBLICATIONS, LITTÉRATURE, CONNAISSANCES, LITTÉRATURE GRISE, ARTICLES DE PRESSE, ARTICLES SCIENTIFIQUES, TEXTES JURIDIQUES, PLANS ET PROGRAMMES, JURISPRUDENCE, DÉCRETS, THÈSES ]
► Fiche bibliographique
Afficher la fiche pour le document :
Document " Decreased emotional reactivity of rats exposed to repeated phase shifts of light-dark cycle "
Type de document : |
Articles de revue scientifique |
Thème du document : |
Nuit menacée - Lumière artificielle - Impacts métaboliques et physiologiques sur la faune et la flore |
Groupe biologique : |
Mammifères hors humains et chauves-souris |
Auteur(s) : |
OKULIAROVA M.
MOLCAN L.
ZEMAN M.
|
Date de publication : |
Mars 2016 |
Langue : |
English/Anglais |
Nom du périodique : |
Physiology & Behavior |
Précisions : |
156:16-23 |
Lien contenu/source : |
https://www.ncbi.nlm.nih.gov/pubmed/26773465 |
DOI : |
10.1016/j.physbeh.2016.01.003 |
Mots-clefs : |
Behaviour
Cardiovascular system
Chronodisruption
Emotionality
Shift-work
|
Citation courte : |
Okuliarova et al. (2016) |
Citation complète (format NuitFrance) : |
OKULIAROVA M., MOLCAN L. & ZEMAN M. (2016). Decreased emotional reactivity of rats exposed to repeated phase shifts of light-dark cycle. Physiology & Behavior. 156:16-23. |
Résumé du document : |
|
Disturbed light-dark (LD) cycles are associated with circadian disruption of physiological and behavioural rhythms and in turn with an increased risk of disease development. However, direct causal links and underlying mechanisms leading to negative health consequences still need to be revealed. In the present study, we exposed male Wistar rats to repeated phase shifts of LD cycle and analysed their ability to cope with mild emotional stressors. In experiment 1, rats were submitted to either a regular 12:12 LD cycle (CTRL rats) or 8-h phase delay shifts applied every 2days for 5weeks (SHIFT rats). Subsequently, the behaviour was examined in the open-field, black-white box and elevated plus maze tests. In experiment 2, changes in blood pressure (BP), heart rate (HR) as well as the activity of autonomic nervous system were measured in telemeterised rats in response to open-field and black-white box tests before and after 5-week exposure to shifted LD regime. Locomotor activity was consistently higher in SHIFT than CTRL rats in in the open-field and black-white box tests. Interestingly, in the elevated plus maze, SHIFT rats displayed increased risk assessment and decreased grooming compared to CTRL rats. Anxiety measures were affected only in the black-white box, where SHIFT rats displayed reduced anxiety-like behaviour compared to CTRL rats. Differences in behavioural reactivity between SHIFT and CTRL rats did not correspond with BP and HR changes. However, exposure to phase shifts increased the sympathovagal reactivity in the black-white box. Together, our results demonstrated that disturbed LD conditions decreased emotional reactivity of rats and affected their ability to cope with emotional stressors denoting an additional risk mechanism linking disrupted circadian organisation to adverse health effects.
|
Saisie sur NuitFrance par : |
Rosor |
Saisie sur NuitFrance en : |
Octobre 2016 |
Identifiant NuitFrance : |
NF-BIBLI-1609 |
Permalien de la fiche NuitFrance : |
http://www.nuitfrance.fr/?page=donneesdoc&partie=fiche-bibliographique&id_doc=1609 |
|
|
