Follistatin 315

Follistatin, also called activin-binding protein, is found in nearly all tissues of vertebrate animals. Its primary function is to neutralize members of the TGF-β family, which play fundamental roles in everything from growth and development to energy homeostasis and immune system regulation. In particular, follistatin interacts with activin, which plays an important part in cell proliferation and cell death as well as in the immune response as it applies to wound repair.

Follistatin 344 și 315 are engineered analogues of naturally occurring follistatin. Both are created by alternative splicing of the follistatin mRNA transcript. Scientific research in non-human primates as well as in mice have indicated that both molecules are capable of improving muscle growth by antagonizing myostatin (a member of the TGF-β family).

Follistatin este o proteină fascinantă care poate crește masa musculară dincolo de potențialul natural prin suprimarea miostatinei. Oamenii de știință au identificat pentru prima dată follistatina în timp ce examinau porcine (re: porc) lichid folicular în ovare.

Follistatina se găsește în mod natural în mușchiul scheletic al aproape tuturor mamiferelor cu caracteristici avansate sau dezvoltate, precum oamenii, rozătoare, si vaci. Follistatin este bogat în aminoacizii neesențiali cistina, dar spre deosebire de majoritatea proteinelor discutate în lumea fitnessului, Follistatin are atașați carbohidrați.