C-peptide, inozivikanwawo se linking peptide, iamino acid inokosha mukugadzirwa kweinsulin. Inoburitswa nepancreas pamwe chete neinsulin uye inoshanda sechiratidzo chikuru chekuongorora mashandiro epancreas. Kunyange zvazvo insulin ichidzora huwandu hweshuga muropa, C-peptide inoita basa rakasiyana uye inokosha pakunzwisisa mamiriro akasiyana-siyana ehutano, kunyanya chirwere cheshuga. Nekuyera huwandu hweC-peptide, varapi vehutano vanogona kusiyanisa pakati pechirwere cheshuga cherudzi rwekutanga nerwechipiri, kutungamira sarudzo dzekurapa, uye kutarisa kushanda kwekurapa.

Kuyera huwandu hweC-peptide kwakakosha pakuongorora nekurapa chirwere cheshuga. Vanhu vane chirwere cheshuga cherudzi rwekutanga vanowanzova nehuwandu hwakaderera kana husingaonekwe hweinsulin neC-peptide nekuda kwekurwiswa kwemasero e beta anogadzira insulin. Kune rumwe rutivi, vanhu vane chirwere cheshuga cherudzi rwechipiri vanogona kuva nehuwandu hweC-peptide hwakajairika kana hwakakwira nekuti miviri yavo inogadzira insulin asi haigone kukanganiswa nemigumisiro yayo. Kutarisa huwandu hweC-peptide muvarwere, vakaita sevari kuisirwa islet cell, kunogona kupa ruzivo rwakakosha nezvekubudirira kwekurapwa.

Zvidzidzo zvakaongororawo zvingangoitika zvekudzivirira kweC-peptide pamatishu akasiyana-siyana. Dzimwe tsvakiridzo dzinoratidza kuti C-peptide inogona kunge iine hunhu hwekudzivirira kuzvimba hunogona kubatsira kuderedza matambudziko anokonzerwa nechirwere cheshuga, akadai sekukuvara kwetsinga neitsvo. Kunyangwe C-peptide pachayo isingakanganisi zvakananga huwandu hweshuga muropa, inoshanda sechiratidzo chakakosha chekutarisira chirwere cheshuga uye kugadzirisa zvirongwa zvekurapa zvinoenderana nezvinodiwa nemunhu mumwe nemumwe. Kana uchida kunyura mukunzwisisa chirwere cheshuga, kufambira mberi neruzivonhau dzebhizinesizvine chekuita nehutano uye kufambira mberi kwezvekurapa zvinogona kupa ruzivo rwakakosha kune vese nyanzvi nevarwere.