Trials of Serostim (human growth hormone or HGH) to treat lipodystrophy are now joined by a study of peptide TH9507, which revs up the body’s own fat-burning GH. (Several studies suggest HIVers’ lack of the hormone may be a culprit in fat redistribution.) Will TH9507 someday give HIVers’ own GH the boost it needs to lick lipo?