Circulating Biomarkers of Beta Cell Loss/Dysfunction in Diabetes
City of Hope Medical Center
Summary
More than 100 million U.S. adults are now living with diabetes or prediabetes. Investigators still do not fully understand how diabetes develops and how the disease worsens. Insulin is a hormone that helps the body use sugar as a fuel and control blood-sugar levels. People with diabetes have problems making insulin. This is because their insulin-producing beta cells -in the pancreas-are damaged or destroyed. A biomarker is a biological molecule (such as DNA, RNA (the genetic material of cells) or protein) that is a sign of a normal or abnormal process, or of a condition or disease. A biomarker can be measured and found in blood and/or other body fluids (such as saliva and urine). Understanding the biology of beta cells could help find diabetes-related biomarkers. The discoveries from this research could help with early diagnosis of diabetes and lead to the creation of therapies for treating diabetes.
Eligibility
- Age range
- Not specified
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Documented informed consent/ assent from the subject * ONE of the following: * Type 1 diabetes patients (including pediatric patients) -OR- * Adult type 2 diabetes patients -OR- * Volunteers who are islet auto-antibody positive (i.e. insulin, GAA, IA-2, IAA and ZnT8 antibodies) with HbA1c ≤ 5.6% (including pediatric patients)-OR- * Adult participants with clinical diagnosis of high blood sugar (i.e. HbA1c of 5.7% to 6.4%)-OR- * Adult control subjects with HbA1cc ≤ 5.6% * Weight ≥ 30 kg * Willingness to: Provide blood sample(s) and if applicable: permit medical…
Interventions
- OtherOne-time blood (up to 100 ml) will be drawn and the amount of blood drawn is based on weight. Saliva and urine will be collected during the blood draw visit.
One-time blood (up to 100 ml) will be drawn and the amount of blood drawn is based on weight. Saliva and urine will be collected during the blood draw visit.
Location
- City of Hope Medical CenterDuarte, California