Results
Survivors had decreased alpha diversity compared to controls (Shannon index p=0.001, Simpson index p=0.032) and differently abundant bacterial taxa. Further, among survivors, those who received radiation to the central nervous system or abdomen/pelvis had decreased alpha diversity compared to those that did not receive radiation (Shannon and Simpson p<0.05 for both). Although, no specific component of metabolic syndrome or cytokine was associated with measures of alpha diversity, survivors with low adiponectin-lectin ratio, elevated body mass index, and elevated C-Reactive protein had differently abundant taxa compared to those with normal measures.