A method of decreasing the level of neprilysin in a subject, comprising: identifying a subject in need thereof and administering to the subject a composition that contains small cells that are greater than 2 micrometers and less than 6 micrometers in size wherein the small cells include somatic stem cells that are (i) pluripotent and (i) CD349(+), CD9(+), Oct4(+), Nanog(+), Lgr5(+), CD66e(+), CD133(+), or CD34(+).一種在一個體中降低腦啡肽酶的位準的方法,其包含有:鑑定一需要它的個體;以及投藥給該個體一含有在尺寸上大於2微米並且小於6微米的小細胞的組成物;其中該等小細胞包括下列的體幹細胞:(i)多能的;和(i) CD349(+)、CD9(+)、Oct4(+)、Nanog(+)、Lgr5(+)、CD66e(+)、CD133(+)或CD34(+)。(無)
