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Detection of C-Peptide in Scalp Hair of Healthy Adults

Authors Abdulateef DS, Salih JM

Received 11 December 2019

Accepted for publication 21 January 2020

Published 3 February 2020 Volume 2020:13 Pages 227—236

DOI https://doi.org/10.2147/DMSO.S240785

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Antonio Brunetti


Darya S Abdulateef,1 Jamal M Salih1,2

1Physiology Department, College of Medicine, University of Sulaimani, Sulaymaniyah, Kurdistan Region, Iraq; 2Diabetes Physician, Diabetes and Endocrine Centre, Sulaymaniyah, Kurdistan Region, Iraq

Correspondence: Darya S Abdulateef
Physiology Department, College of Medicine, University of Sulaimani, New–Street-27, Zone 209, P.O. Box: 334, Sulaymaniyah, Kurdistan Region, Iraq
Tel +964-7701580313
Email darya.abdulateef@univsul.edu.iq

Purpose: The C-peptide level from blood and urine samples represents endogenous insulin secretion and has clinical implications for individuals with and without diabetes. However, the study results are inconsistent and the available methods can only measure short-term C-peptide levels, which can be substantially affected by concurrent glycaemia. In this study, we evaluated whether C-peptide can be detected from hair? Hair C-peptide if detected could potentially represent long-term, insulin secretion. And to know whether there is any correlation between hair C-peptide with certain biochemical and demographic parameters.
Methods: In a prospective observational study on 120 normal healthy individuals, hair samples were taken from the scalp and C-peptide was extracted. The hair C-peptide levels were measured in pg/mg of hair using electrochemiluminescence immunoassay (ECLISA) after methanol extraction and were compared among different age and body-type groups. Serum C-peptide, fasting plasma glucose (FPG) and HbA1c were assessed and their levels were correlated with anthropometric parameters.
Results: A detectable range of C-peptide was found in the hair samples of all the subjects with a median of 63.59 pg/mg hair and it was positively correlated with FPG but no significant correlation was found between hair C-peptide and serum C-peptide levels. The hair C-peptide level, along with FPG and HbA1c, was significantly different according to age.
Conclusion: These results conclude that C-peptide can be detected from and measured in the scalp hair of humans and it is positively correlated with FPG, and it is significantly different according to age. This technique, if validated, may verify its usefulness in future studies of both healthy and diseased subjects.

Keywords: C-peptide, hair sample, fasting plasma glucose, human


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