C-peptide, yomwe imadziwikanso kuti yolumikizira peptide, ndiyofunikira kwambiri pakupanga insulin. Imatulutsidwa ndi kapamba limodzi ndi insulin ndipo imakhala ngati cholembera chofunikira pakuwunika ntchito ya kapamba. Ngakhale insulini imayang'anira kuchuluka kwa shuga m'magazi, C-peptide imagwira ntchito ina ndipo ndiyofunikira pakumvetsetsa matenda osiyanasiyana, makamaka matenda a shuga. Poyeza milingo ya C-peptide, opereka chithandizo chamankhwala amatha kusiyanitsa pakati pa mtundu 1 ndi mtundu wa 2 shuga, kuwongolera zosankha zamankhwala, ndikuwunika momwe chithandizo chikuyendera.

Kuyeza milingo ya C-peptide ndikofunikira pakuzindikiritsa ndikuwongolera matenda a shuga. Anthu omwe ali ndi matenda a shuga a mtundu woyamba amakhala ndi milingo yotsika kapena yosazindikirika ya insulin ndi C-peptide chifukwa cha kuukira kwa chitetezo chamthupi pama cell a beta omwe amapanga insulin. Kumbali inayi, anthu omwe ali ndi matenda a shuga amtundu wa 2 amatha kukhala ndi C-peptide yabwinobwino kapena yokwera chifukwa matupi awo amatulutsa insulini koma osamva zotsatira zake. Kuyang'anira kuchuluka kwa C-peptide mwa odwala, monga omwe akusinthidwa ndi ma islet cell, kumatha kupereka chidziwitso chofunikira pakupambana kwachipatala.

Kafukufuku wafufuzanso momwe C-peptide ingatetezere pamagulu osiyanasiyana. Kafukufuku wina akuwonetsa kuti C-peptide ikhoza kukhala ndi anti-yotupa zomwe zingathandize kuchepetsa zovuta zomwe zimakhudzana ndi matenda a shuga, monga kuwonongeka kwa mitsempha ndi impso. Ngakhale C-peptide palokha siyikhudza mwachindunji kuchuluka kwa shuga m'magazi, imagwira ntchito ngati chizindikiro chofunikira pakuwongolera matenda a shuga komanso kukonza mapulani amankhwala mogwirizana ndi zosowa za munthu aliyense. Ngati mukufuna kuzama mozama pakumvetsetsa matenda a shuga, tsatiraninkhani zamabizinesizokhudzana ndi chithandizo chamankhwala ndi kupita patsogolo kwachipatala kungapereke chidziwitso chofunikira kwa akatswiri ndi odwala.