Reference Standards for C-Peptide in Korean Population: A Korean Endocrine Hormone Reference Standard Data Center Study

Background: The Korean Endocrine Hormone Reference Standard Data Center (KEHRS DC) has created reference standards (RSs) for endocrine hormones since 2020. This study is the first of its kind, wherein the KEHRS DC established RSs for serum Cpeptide levels in a healthy Korean population.Methods: Heal...

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Veröffentlicht in:Endocrinology and metabolism (Seoul) Jg. 39; H. 3; S. 489 - 499
Hauptverfasser: Cho, Jooyoung, Cho, Ho-Chan, Ryu, Ohk-Hyun, Kim, Hyo-Jeong, Kim, Chang Geun, Yun, Young Ran, Chung, Choon Hee
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Korea (South) Korean Endocrine Society 01.06.2024
대한내분비학회
Schlagworte:
Adult
Aged
Biomarkers - blood
Blood Glucose - analysis
c-peptide
C-Peptide - blood
diabetes
Female
Glucose Tolerance Test - standards
Glycated Hemoglobin - analysis
Humans
korean endocrine hormone reference standard data center
Male
Middle Aged
oral glucose tolerance test
Original
Reference Standards
Reference Values
Republic of Korea
Young Adult
내과학
Republic of Korea
Reference standards
Oral glucose tolerance test
Diabetes
C-peptide
Korean Endocrine Hormone Reference Standard Data Center
ISSN:2093-596X, 2093-5978, 2093-5978
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Zusammenfassung:Background: The Korean Endocrine Hormone Reference Standard Data Center (KEHRS DC) has created reference standards (RSs) for endocrine hormones since 2020. This study is the first of its kind, wherein the KEHRS DC established RSs for serum Cpeptide levels in a healthy Korean population.Methods: Healthy Korean adults were recruited from May 2021 to September 2023. After excluding participants according to our criteria, serum samples were collected; each participant could then choose between fasting glucose only or fasting glucose plus an oral glucose tolerance test (OGTT). If their sample showed high glucose (≥100 mg/dL) or hemoglobin A1c (HbA1c) (≥5.70%), their C-peptide levels were excluded from analyzing the RSs.Results: A total of 1,532 participants were recruited; however, only the data of 1,050 participants were analyzed after excluding those whose samples showed hyperglycemia or high HbA1c. Post-30-minute OGTT data from 342 subjects and post-120-minute OGTT data from 351 subjects were used. The means±2 standard deviations and expanded uncertainties of fasting, post-30-minute and 120-minute OGTT C-peptide levels were 1.26±0.82 and 0.34–3.18, 4.74±3.57 and 1.14–8.33, and 4.85±3.58 and 1.25–8.34 ng/mL, respectively. Serum C-peptide levels correlated with obesity, serum glucose levels, and HbA1c levels.Conclusion: The RSs for serum C-peptide levels established in this study are expected to be useful in both clinical and related fields.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:2093-596X
2093-5978
2093-5978
DOI:10.3803/EnM.2023.1888