C-peptide (C-peptide) na insulin (insulin) bụ molekul abụọ nke mkpụrụ ndụ agwaetiti pancreatic na-emepụta n'oge mmepụta insulin. Isi ihe dị iche: C-peptide bụ ihe sitere na mmepụta insulin site na mkpụrụ ndụ agwaetiti. Mgbe a na-emepụta insulin, a na-emepụta C-peptide n'otu oge. Ya mere, enwere ike ịmepụta C-peptide naanị na mkpụrụ ndụ agwaetiti ma agaghị emepụta ya site na mkpụrụ ndụ dị n'èzí agwaetiti. Insulin bụ hormone bụ isi nke mkpụrụ ndụ agwaetiti pancreatic na-emepụta ma na-ahapụ ya n'ime ọbara, nke na-achịkwa ọkwa shuga ọbara ma na-akwalite nnabata na ojiji nke glucose. Ọdịiche ọrụ: Isi ọrụ nke C-peptide bụ idobe nguzozi n'etiti insulin na ndị na-anabata insulin, yana isonye na mmepụta na mwepụ nke insulin. Ọkwa nke C-peptide nwere ike igosipụta ọnọdụ ọrụ nke mkpụrụ ndụ agwaetiti n'ụzọ na-apụtaghị ìhè ma ejiri ya dị ka ihe atụ iji nyochaa ọrụ nke agwaetiti. Insulin bụ hormone metabolic bụ isi, nke na-akwalite nnabata na ojiji nke glucose site na mkpụrụ ndụ, na-ebelata ntinye shuga ọbara, ma na-achịkwa usoro metabolic nke abụba na protein. Ọdịiche ntinye ọbara: Ọkwa ọbara C-peptide kwụsiri ike karịa ọkwa insulin n'ihi na a na-ewepụ ya nwayọ. Ọtụtụ ihe na-emetụta oke insulin n'ọbara, gụnyere nri a na-eri n'ime eriri afọ, ọrụ mkpụrụ ndụ islet, iguzogide insulin, wdg. Na nchịkọta, C-peptide bụ ihe na-esi na insulin pụta nke e ji enyocha ọrụ mkpụrụ ndụ islet, ebe insulin bụ isi homonụ metabolic eji achịkwa ọbara.