Mechanism of Mongolian medical warm acupuncture in treating insomnia by regulating miR‑101a in rats with insomnia

Bo,Agula; Si,Lengge; Wang,Yuehong; Bao,Lidao; Yuan,Hongwei

doi:10.3892/etm.2017.4452

Mechanism of Mongolian medical warm acupuncture in treating insomnia by regulating miR‑101a in rats with insomnia

Authors:
- Agula Bo
- Lengge Si
- Yuehong Wang
- Lidao Bao
- Hongwei Yuan
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Affiliations: College of Traditional Mongolia Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, P.R. China, Department of Pathology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia 010059, P.R. China
Published online on: May 11, 2017 https://doi.org/10.3892/etm.2017.4452
Pages: 289-297
Copyright: © Bo et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

MicroRNAs (miRNAs or miRs) and the target genes before and after warm acupuncture at the genetic level were assessed, and the cytokines and neurotransmitters related to insomnia were studied. Male Sprague‑Dawley rats were used to create PCPA insomnia rat models and randomly divided into the normal, model, warm acupuncture, and drug groups. The Dinghui Acupoint, Heyi Acupoint, and Xin Acupoint were inserted in the Mongolian medicine warm acupuncture group. The differential expression profile of microRNA in the brain tissue of the insomnia rats was determined before and after Mongolian medicine warm acupuncture for establishment of miR‑101a mimics and inhibitor. qPCR was used to detect the expression level of miR‑101a. Western blotting was used to detect the expression level of PAX8. The rats receiving Mongolian medicine warm acupuncture had 141 miRNAs with differential expression compared with the normal rats. The expression level of miR‑101a in the cells of the hippocampus of the insomnia rats transfected with miR‑101a mimics increased significantly at 72 h (P<0.05). The activity of the neuronal cells transfected with miR‑101a inhibitor increased significantly at 72 h (P<0.05). The western blotting result indicated that the expression of the PAX8 protein in the neuronal cells of the insomnia model rats was inhibited and downregulated significantly at 72 h after addition of miR‑101a mimics compared with that in the scramble added group (P<0.01). The levels of the interleukins IL‑1, IL‑2, and IL‑6 and the tumor necrosis factor‑α in the hypothalamus, hippocampus, and prefrontal cortex decreased significantly compared with those in the blank control group (P<0.05). The levels of noradrenaline, dopamine, and glutamic decreased significantly following warm acupuncture or western medicine treatment (P<0.05). In conclusion, this study demonstrates that the upregulation of miR‑101a in the rats treated with warm acupuncture is directly associated with PAX8 regulation.

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