Cancer treatment-associated gut microbial perturbation/dysbiosis has been implicated in the pathobiology of sleep disturbance; however, evidence is scarce. Eighteen newly diagnosed rectal cancer patients (ages 52-81 years; 10 males) completed a sleep disturbance questionnaire and provided stool samples for 16s RNA gene sequencing during chemo-radiotherapy. Descriptive statistics, Wilcoxon test and regression analyses were computed. Regression analyses showed the Shannon's diversity index to be a significant factor associated with sleep disturbance. This preliminary work suggests that the biological "gut-brain axis" mechanism may be associated with symptoms of sleep disturbance.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7644135PMC
http://dx.doi.org/10.1111/jsr.12915DOI Listing

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