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Proceedings Paper

The synchronizing research on structure of microcirculation and dynamic changes of monoamine neurotransmitter in the rat endbrain after exhaustive swimming
Author(s): Qiongjia Yuan; He Li; Ruo-Hong Xiong; Quan-Sheng Su; Jin Tan; Yi Dai; Ming Xu
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Paper Abstract

The changes of microconfiguration and dynamic changes of monoamines, 5-hydroxytryptamine (5-HT), norepinephrine (NE) and dopamine(DA), in the rat endbrain after exhaustive swimming were observed in order to provide objective reference for evaluation of exercise central fatigue. Thirty-six male SD rates were divided randomly into 4 groups: group control (G1); group immediate after exhaustive swimming (G2); group 24 hours after exhaustive swimming (G3) and group 48 hours after exhaustive swimming (G4), 9 in each group. After adaptive swimming for 4 days, rats in G2, G3 and G4 took loaded swimming in ratio of 5 g for every 100g body weight (5%) till exhaustion. After decapitation, the endbrains of the rats in each group were taken for ordinary electron microscopic observation of change of microcofiguration and measurement of contents of 5-HT, NE and DA by fluorometric photometer. The ultrastructure of the endbrain cortex in G2 had apparent changes. In G3, improvement of ultrastructure of microcirculation in endbrain were observed; In G4, structure of microcirculation almost recovered to normal level. The level of 5-HT and NE in the endbrain of exhaustive swimming rat increased significantly, up to the highest in G3 (24h). It was therefore demonstrated that the configuration change of microcirculation and change of 5-HT and NE contents in rat endbrain after exhaustive exercise were synchronous and that the recovery of the configuration change of microcirculation was faster than change of 5-HT and NE contents, the ultrastructure change of microcirculation being reversible. These results indicate that the improvement of microcirculation in endbrain can help promote recovery of sporting central fatigue.

Paper Details

Date Published: 8 December 2003
PDF: 8 pages
Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); doi: 10.1117/12.546115
Show Author Affiliations
Qiongjia Yuan, Huazhong Univ. of Science and Technology (China)
Chendu Institute of Physical Education (China)
He Li, Huazhong Univ. of Science and Technology (China)
Ruo-Hong Xiong, Chendu Institute of Physical Education (China)
Quan-Sheng Su, Chendu Institute of Physical Education (China)
Jin Tan, Chendu Institute of Physical Education (China)
Yi Dai, Chendu Institute of Physical Education (China)
Ming Xu, Chendu Institute of Physical Education (China)


Published in SPIE Proceedings Vol. 5254:
Third International Conference on Photonics and Imaging in Biology and Medicine
Qingming Luo; Valery V. Tuchin; Min Gu; Lihong V. Wang, Editor(s)

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