C-peptide results

[Bucco]

Dear all,

Do you know your c-peptide levels, and if so - what are they? I read in Bernstein's book that of all the T1s he has ever treated there are only two who had zero c-peptide, and he is one of them!

b.

 

[phoenix]

I don't know what mine was, it was one of the tests when I was in hospital. At the time I wouldn't have understood it.
The amount of c peptide and insulin you produce may depend on how long you have had T1. Two thirds of those in the Joslin, 50 year medalist study produce some insulin.
Denise Faustman in a recent study using a new ultra sensitive c peptide test found that it declines gradually over 40 years and more.

Reduction of C-peptide levels starts sometime during the prediabetes stage and keeps going down with the progress of the disease.
With the new ultrasensitive C-peptide assays, remaining b-cell function extends for years after loss of pancreas function and in some cases extends to 40 years after diagnosis

http://care.diabetesjournals.org/content/35/3/465.full.pdf+html

 

[Wurst]

Mine was 3.0 ng/ml, within a reference range of 0.9 - 7.1. Where below 0.9 implies you are producing no insulin.