Human microbiome transplant

Responses to Josiah Zayner’s attempt to replace his body’s bacteria are almost as interesting as the experiment itself. It seems like most of the medical community believe professional approval of one’s theory and practice is what determines therapeutic success, and not the actual measurement of physical outcomes.

Anyway, as is usual in gut flora replacement therapy, Mr. Zayner has successfully remediated his long standing intestinal problems. Genetic tests show that he is now host to a new, healthier mix of internal bacteria harvested from a friend’s feces. The rest of his homemade treatment was less successful; he was not able to completely eradicate his skin bacteria, nor was he able to prevent re-infection from his surroundings. The article is sort of simultaneously horrifying and illuminating; scientists who self-experiment are strange birds more often than not.

Newly discovered extra tiny bacteria

Jill Banfield and collaborators at Berkeley used a pair of 0.1 and 0.2 micron filters to sieve bacteria between those two size limits out of Colorado river water. They found neat stuff, and they are claiming 28 new phyla.