That's what i was going to say
pubmed (the site at the link) is not even a publisher, it's like google for research papers. pubmed may be a function of NIH, but they don't control content.
I'm not familiar with the journal this was published in, Medical Hypotheses, but it looks like it's a pretty low ranking journal that lets people publish without the need for peer review. That's not a good thing. Looking at the history on this journal, it's been known to publish some quackery.
But just because he didn't get published in a big name journal with peer review doesn't mean his ideas don't have merit. it may just mean that he knows he couldn't get it through the review process in this political climate.
Even with that... there are journals that have relaxed peer review and aren't quite as selective about the ideas they publish.
However, the author does seem to be working at a VA hospital (scratch that,
the author was once at a 1yr position at the va/stanford, but no longer is), which is some cred in his or her favor, but has never been funded by the NIH, which is somewhat questionable since they're the big money machine.
tldr - take that paper with a handful of salt. know how to research your researcher before you believe the research.