Role of gut microbiota in regulating gastrointestinal dysfunction and motor symptoms in a mouse model of Parkinson's disease.

Role of gut microbiota in regulating gastrointestinal dysfunction and motor symptoms in a mouse model of Parkinson's disease.
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肠道微生物群在帕金森病小鼠模型中调节胃肠道功能障碍和运动症状的作用

DOI:
10.1080/19490976.2020.1866974
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发表时间:
2021-01-01
期刊:
影响因子:
12.2
通讯作者:
Kashyap PC
Kashyap PC
中科院分区:
医学2区
文献类型:
--
作者:
Bhattarai Y;Si J;Pu M;Ross OA;McLean PJ;Till L;Moor W;Grover M;Kandimalla KK;Margolis KG;Farrugia G;Kashyap PC

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帕金森病(PD)是一种常见的神经退行性疾病,主要表现为运动和非运动性胃肠道(GI)功能障碍。胃肠道症状,包括肠道屏障功能受损,经常伴随着PD患者肠道微生物区系组成的改变和运动障碍。因此,在这项研究中,我们利用鱼藤酮诱导的帕金森病小鼠模型,研究肠道微生物区系和上皮屏障功能障碍在运动症状发生中的作用。我们发现,虽然长期灌胃10 mg/kg鱼藤酮6周可导致无菌(GF)和常规饲养(CR)小鼠的酪氨酸羟化酶(TH)神经元丢失,但仅在CR小鼠观察到运动强度和协调性的下降。慢性鱼藤酮治疗并不破坏GF小鼠的肠道通透性,但导致CR小鼠肠道微生物区系组成的显着变化和肠道通透性的增加。这些结果突显了肠道微生物区系在调节帕金森病患者屏障功能障碍和运动缺陷方面的潜在作用。
Parkinson’s disease (PD) is a common neurodegenerative disorder characterized primarily by motor and non-motor gastrointestinal (GI) deficits. GI symptoms’ including compromised intestinal barrier function often accompanies altered gut microbiota composition and motor deficits in PD. Therefore, in this study, we set to investigate the role of gut microbiota and epithelial barrier dysfunction on motor symptom generation using a rotenone-induced mouse model of PD. We found that while six weeks of 10 mg/kg of chronic rotenone administration by oral gavage resulted in loss of tyrosine hydroxylase (TH) neurons in both germ-free (GF) and conventionally raised (CR) mice, the decrease in motor strength and coordination was observed only in CR mice. Chronic rotenone treatment did not disrupt intestinal permeability in GF mice but resulted in a significant change in gut microbiota composition and an increase in intestinal permeability in CR mice. These results highlight the potential role of gut microbiota in regulating barrier dysfunction and motor deficits in PD.
DOI: 10.1002/mds.26069
发表时间: 2015-03-01
期刊: MOVEMENT DISORDERS
影响因子: 8.6
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DOI: 10.1038/s41531-018-0058-0
发表时间: 2018
期刊: NPJ Parkinson's disease
影响因子: --
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通讯作者: Parkinson’s Foundation P4 Group