Patients with chronic neuropathic pain frequently suffer from symptoms of anhedonia, which is a core symptom of depression. Accumulating studies suggest that gut microbiota may play a role in depression via gut-microbiota-brain axis. However, it is unknown whether gut microbiota plays a role in neuropathic pain-associated anhedonia. Here, we used a rat model of spared nerve injury (SNI). Hierarchical cluster analysis of sucrose preference test (SPT) results was used to classify the SNI rats with or without anhedonia-like phenotype. The 16S ribosomal RNA sequencing analysis showed abnormal composition of gut microbiota in the anhedonia susceptible compared to sham-operated rats and resilient rats. Furthermore, antibiotics-treated mice showed pain as well as depression-like and anhedonia-like phenotypes, suggesting a role of gut microbiota in these abnormal behaviors. Transplantation of fecal microbiota from anhedonia susceptible rats into antibiotics-treated pseudo-germ-free mice significantly exaggerated pain and depression-like phenotypes, including anhedonia. In contrast, transplantation of fecal microbiota from resilient rats into antibiotics-treated pseudo-germ-free mice significantly improved pain and depression-like phenotypes, including anhedonia. In conclusion, this study suggests that abnormal composition of gut microbiota may contribute to anhedonia susceptibility post SNI surgery, and that gut microbiota also plays a role in the pain as well as depression-like phenotypes. Interestingly, fecal microbiota transplantation from SNI rats with or without anhedonia can alter pain, depression-like and anhedonia-like phenotypes in the pseudo-germ-free mice. Therefore, it is likely that gut microbiota plays a key role in the pain as well as depression-like phenotypes including anhedonia in rodents with neuropathic pain.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81771159, 81571047, 81703482]; AMED, Japan [JP18dm0107119]; Program of Bureau of Science and Technology Foundation of Changzhou [CJ20159022, CJ20160030]; Major Science and Technology Projects of Changzhou Municipal Committee of Health and Family Planning [ZD201505, ZD201407]
第一作者单位:[1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Anesthesiol, Wuhan, Hubei, Peoples R China;
通讯作者:
通讯机构:[1]Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Dept Anesthesiol, Wuhan, Hubei, Peoples R China;[3]Chiba Univ, Ctr Forens Mental Hlth, Div Clin Neurosci, Chiba, Japan
推荐引用方式(GB/T 7714):
Yang Chun,Fang Xi,Zhan Gaofeng,et al.Key role of gut microbiota in anhedonia-like phenotype in rodents with neuropathic pain[J].TRANSLATIONAL PSYCHIATRY.2019,9:57.doi:10.1038/s41398-019-0379-8.
APA:
Yang, Chun,Fang, Xi,Zhan, Gaofeng,Huang, Niannian,Li,Shan...&Hashimoto, Kenji.(2019).Key role of gut microbiota in anhedonia-like phenotype in rodents with neuropathic pain.TRANSLATIONAL PSYCHIATRY,9,
MLA:
Yang, Chun,et al."Key role of gut microbiota in anhedonia-like phenotype in rodents with neuropathic pain".TRANSLATIONAL PSYCHIATRY 9.(2019):57