Astrocytes modulate brainstem respiratory rhythm-generating circuits and determine exercise capacity.
Astrocytes modulate brainstem respiratory rhythm-generating circuits and determine exercise capacity.
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星形胶质细胞调节脑干呼吸节律生成电路,并确定运动能力。
DOI:
10.1038/s41467-017-02723-6
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发表时间:
2018-01-25
影响因子:
16.6
通讯作者:
Gourine AV
中科院分区:
文献类型:
--
作者:
Sheikhbahaei S;Turovsky EA;Hosford PS;Hadjihambi A;Theparambil SM;Liu B;Marina N;Teschemacher AG;Kasparov S;Smith JC;Gourine AV
Astrocytes are implicated in modulation of neuronal excitability and synaptic function, but it remains unknown if these glial cells can directly control activities of motor circuits to influence complex behaviors in vivo. This study focused on the vital respiratory rhythm-generating circuits of the preBötzinger complex (preBötC) and determined how compromised function of local astrocytes affects breathing in conscious experimental animals (rats). Vesicular release mechanisms in astrocytes were disrupted by virally driven expression of either the dominant-negative SNARE protein or light chain of tetanus toxin. We show that blockade of vesicular release in preBötC astrocytes reduces the resting breathing rate and frequency of periodic sighs, decreases rhythm variability, impairs respiratory responses to hypoxia and hypercapnia, and dramatically reduces the exercise capacity. These findings indicate that astrocytes modulate the activity of CNS circuits generating the respiratory rhythm, critically contribute to adaptive respiratory responses in conditions of increased metabolic demand and determine the exercise capacity. Circuits of the preBötzinger complex generate rhythms needed for breathing. Here, the authors provide evidence, using a combination of chemogenetic approaches and approaches to inhibit vesicular release, that astrocytes play a role in regulating respiratory rate.
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DOI:
10.1073/pnas.0700293104
发表时间:
2007-03-20
影响因子:
11.1
作者:
Armbruster, Blaine N.;Li, Xiang;Roth, Bryan L.
通讯作者:
Roth, Bryan L.
DOI:
10.1126/science.1190721
发表时间:
2010-07-30
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gourine AV;Kasymov V;Marina N;Tang F;Figueiredo MF;Lane S;Teschemacher AG;Spyer KM;Deisseroth K;Kasparov S
通讯作者:
Kasparov S
影响因子:
16.2
作者:
Guyenet PG;Bayliss DA
通讯作者:
Bayliss DA
影响因子:
5.5
作者:
Huckstepp, Robert T. R.;Bihi, Rachid Id;Dale, Nicholas
通讯作者:
Dale, Nicholas
影响因子:
4.8
作者:
Coco, S;Calegari, F;Verderio, C
通讯作者:
Verderio, C