Teams from the University of Chicago and University of Texas MD Anderson Cancer Center in Houston have conducted similar experiments using gut microbes from metastatic melanoma patients who responded well to checkpoint inhibitors. Those mice improved, too. “We basically put a little tube into the mouse’s esophagus and put in the poop sample. It reconstituted the mouse’s gut so that it now contained microbes from the patient,” says Deepak Gopalakrishnan, a postdoctoral research fellow and lead author of the MD Anderson study.
With the amount of articles linking gut bacteria and various bodily problems, I'm beginning to think we (at least laymen like me) don't understand either how it changes or how we change in response to their changes. Between articles like Role of the gut microbiota in nutrition and health and Baby feces may be source of beneficial probiotics and a staggering number of others, I'm basically going to wait for something more conclusive and do what I presume is healthy: exercise, eat vegetable and fruit without going full vegetarian/vegan since there are benefits to diverse diets (look at the daily cuisine and health/mortality statistics for Japan or Italy).