Genetic Variants Replication Study Associated With Dependence on Sulfonylurea in Participants With Type 2 Diabetes

2019-10-17 11:03:47 | BioPortfolio


This study was designed to reproduce candidate single nucleotide variants found by whole exome sequencing in some type 2 diabetic patients dependent on sulfonylurea in a separate patient group. The validation of the dependence-related variations performed in this study is expected to help decision-making in the clinical use of sulfonylurea in the future.


Sulfonylurea, one of the oral hypoglycemic agents, is the oldest and most widely used drug. The use of sulfonylurea was overwhelming compared to metformin especially in East Asia, where insulin secretion was notable during the pathophysiology of type 2 diabetes. However, sulfonylurea causes hypoglycemia and weight gain, increases cardiovascular disease and mortality compared to other oral preparations. With the recent development of other oral hypoglycemic agents for lowering blood glucose without the risk of hypoglycemia and with cardiovascular protection, sulfonylurea is in a decreasing state of use worldwide.

But some patients tend to be highly dependent on sulfonylurea for blood glucose control. It suggests that there will be a group of patients whose the action of sulfonylurea is strongly influenced by genetic factor, since insulin secretion of pancreatic beta cells is very hereditary, genetic variations that increase the risk of type 2 diabetes are found mainly in genes related to beta cell dysfunction rather than insulin resistance, and the more risk variants of type 2 diabetes, the less likely the effect of sulfonylurea is.

The investigators had performed whole exome sequencing in patients showing dependence on sulfonylurea and identified tens of candidate variants.

In this study, the investigators will select patients with dependence on sulfonylurea by prospective intervention (by discontinuing and resuming sulfonylurea) and perform genetic tests.

Study Design


Diabetes Mellitus


discontinuation of Sulfonylureas


Seoul National University Hospital
Korea, Republic of




Seoul National University Hospital

Results (where available)

View Results


Published on BioPortfolio: 2019-10-17T11:03:47-0400

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Medical and Biotech [MESH] Definitions

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

Diabetes mellitus induced experimentally by administration of various diabetogenic agents or by PANCREATECTOMY.

Urination of a large volume of urine with an increase in urinary frequency, commonly seen in diabetes (DIABETES MELLITUS; DIABETES INSIPIDUS).

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

A strain of Rattus norvegicus which is a model for spontaneous insulin-dependent diabetes mellitus (DIABETES MELLITUS, INSULIN-DEPENDENT).

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