ʻO nā kiʻekiʻe kiʻekiʻe o ka serum vitamin D, ʻoi aku ka nui ma mua o ka makahiki 20, pili i ka pilikia haʻahaʻa o ka hoʻomohala ʻana i ka maʻi sclerosis ma hope aku.

He kuleana "pale" kekahi o ka radiation ultraviolet, ma muli paha o kona hopena pololei i ka synthesis o ka vitamin D, a i ʻole ma kahi hopena kūʻokoʻa i ka ʻōnaehana pale.

Loaʻa nā hopena ākea o ka Vitamin D i ka ʻōnaehana pale. ʻAʻole ia i ka hoʻonui ʻana o nā pūnaewele B a me nā pūnaewele T. ʻO ia hoʻi ke alakaʻi ʻana i nā pūnaewele T mai ke ala ʻeha e hele ai i nā cell T reg a hoʻololi i ka pane immune. e hoʻomanawanui maikaʻi iā TOLIRANCE.

ʻAʻole pili wale ka hana o ka vitamin D i ka sclerosis lehulehu; Akā pū kekahi me nā maʻi autoimmune e like me ka rheumatoid arthritis, RA, type 1 diabetes, a me systemic lupus erythematosus (SLE).

Ua ʻike ʻia ʻo ka poʻe i loaʻa nā haʻahaʻa haʻahaʻa o ka vitamina D ʻoi aku ka maʻalahi o nā maʻi.