Objective: To explore intestinal flora differences in species diversity, community structure, and abundance of breast cancer and non-breast cancer populations with anxiety and depression and the corresponding group without anxiety and depression by 16S rRNA high-throughput sequencing technology.
Method: Breast cancer and non-breast cancer participants were recruited based on the inclusion and exclusion criteria as the research subjects. The study employed the anxiety self-assessment scale and the depression self-rating scale in the questionnaire survey to collect data.
Results: The scores of anxiety and depression of the four groups are as follows: In the breast cancer with anxiety and/or depression (BCAD) group, the anxiety score is 58.80 ± 5.27 and the depression score is 59.60 ± 4.94. In the breast cancer without anxiety and/or depression (BCWAD) group, the anxiety score is 36.53 ± 4.52 and the depression score is 38.20 ± 3.78. In the non-breast cancer group with anxiety and/or depression (HAD) group, the anxiety score is 57.87 ± 4.53 and the depression score is 59.13 ± 5.24. In the non-breast cancer group without anxiety and depression (HWAD) group, the anxiety score is 35.13 ± 5.28 and the depression score is 32.33 ± 4.37.
Conclusion: The intestinal flora of the breast cancer patients is significantly different from those of non-breast cancer patients, suggesting that there is an internal relationship between the changes in the intestinal flora and the occurrence and development of breast cancer. People with anxiety and depression without breast cancer show changes in their intestinal flora, suggesting that the changes of the intestinal flora can indeed trigger anxiety and depression. For the breast cancer patients with anxiety and depression, the intestinal flora shows a decrease in diversity and abundance, suggesting that the intestinal flora of the breast cancer patients with anxiety and depression undergo further changes. Thus the intestinal flora can become a new tool for monitoring, preventing, and treating the breast cancer and negative emotions.
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