Effects of treadmill exercise on anxiety-like behavior in association with changes in estrogen receptors ERα, ERβ and oxytocin of C57BL/6J female mice
In: IBRO Neuroscience Reports, Jg. 11 (2021-12-01), S. 164-174
Online
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Zugriff:
Exercise can reduce the incidence of stress-related mental diseases, such as depression and anxiety. Control group was neither exposed to CVMS nor TRE (noCVMS/noTRE). Females were tested and levels of serum17-beta-oestradiol (E2), estrogen receptors α immunoreactive neurons (ERα-IRs), estrogen receptors β immunoreactive neurons (ERβ-IRs) and oxytocin immunoreactive neurons (OT-IRs) were measured. The results showed there’s increased anxiety-like behaviors for mice from CVMS/noTRE, CVMS/higher speed TRE (CVMS/HTRE) and noCVMS/HTRE groups when they were put in open field and elevated maze tests. They had lower serum E2 levels than mice from CVMS/low-moderate speed TRE (CVMS/LMTRE), noCVMS/LMTRE and noCVMS/noTRE groups. The three groups of CVMS/noTRE, CVMS/HTRE and noCVMS/HTRE mice had more ERα-IRs and less ERβ-IRs in the medial preoptic area (mPOA), bed nucleus of the stria terminalis (BNST) and medial amygdala (MeA), hypothalamic paraventricular nucleus (PVN) and supraoptic nucleus (SON). The number of OT-IRs in PVN and SON of CVMS/noTRE, CVMS/HTRE and noCVMS/HTRE mice was also lower than that of mice from CVMS/LMTRE, noCVMS/LMTRE and noCVMS/noTRE groups. Interestingly, CVMS/LMTRE and noCVMS/LMTRE mice were similar to noCVMS/noTRE mice in that they did not show anxiety, while CVMS/HTRE and noCVMS/HTRE mice did not, which were similar to the mice in CVMS/noTRE. We propose that LMTRE instead of HTRE changes the serum concentration of E2. ERβ/ERα ratio and OT level in the brain may be responsible for the decrease in anxiety-like behavior in female mice exposed to anxiety-inducing stress conditions.
Highlights • CVMS/LMTRE did not show anxiety. • noCVMS/LMTRE did not show anxiety. • ERβ/ERα ratio decreas anxiety. • OT decreas anxiety.
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Effects of treadmill exercise on anxiety-like behavior in association with changes in estrogen receptors ERα, ERβ and oxytocin of C57BL/6J female mice
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Autor/in / Beteiligte Person: | Tian, Zhen ; Yu, Bin ; Cheng, Xiao-Xia ; He, Feng-Qin ; Wang, Zi-Jian ; Fan, Mei-Yang ; Lai, Rui-Juan ; Yan, Bing-Jie ; Hui, Yu-Nan ; Yang, Ming-Juan ; Chen, Xin |
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Zeitschrift: | IBRO Neuroscience Reports, Jg. 11 (2021-12-01), S. 164-174 |
Veröffentlichung: | Elsevier, 2021 |
Medientyp: | unknown |
ISSN: | 2667-2421 (print) |
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