scholarly journals A Case of Transient Neonatal Diabetes Mellitus Attributable to a Nonspecific Mutation in the ABCC8 Gene

2021 ◽  
Vol 27 (2) ◽  
pp. 121-124
Author(s):  
Won Seob Shin ◽  
Hwal Rim Jeong ◽  
Ji Won Koh

Neonatal diabetes mellitus (NDM) is defined as hyperglycemia that persists for more than 2 weeks and requires insulin therapy. NDM principally occurs before 6 months of age. Transient NDM (TNDM) is a clinical form of NDM that persists for a median of 12 weeks and resolves completely by 18 months. However, it may relapse as type 2 DM during early adulthood. The major causes of TNDM are mutations in chromosome 6q24 or the KCNJ11 or ABCC8 genes; the latter encode the two subunits of the pancreatic adenosine triphosphate (ATP)-sensitive potassium channel (KATP-channel). This condition responds well to oral sulfonylurea therapy. Herein, we report a neonate who was small for gestational age and exhibited TNDM symptoms. Genetic analysis revealed a nonspecific mutation in ABCC8; he was successfully treated with oral sulfonylurea.

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
Anna Delamerced ◽  
Lauren J. Massingham ◽  
Jose Bernardo Quintos

Transient neonatal diabetes mellitus (TNDM) is a rare form of diabetes that presents in infancy and is characterized by intrauterine growth restriction and hyperglycemia without ketones on urinalysis. Patients are treated with insulin until remission, usually within the first year. Relapse to a permanent state may occur later in life, with a mean age of 14 years. The most common cause of TNDM is a chromosome 6q24 mutation that affects pancreatic β-cell function. Reports of relapse have been limited. We describe a case of an adolescent female with TNDM due to 6q24 hypomethylation who relapsed at 15 years of age with severe dental disease as the presenting sign.


2017 ◽  
Vol 36 (4) ◽  
pp. 196-205 ◽  
Author(s):  
Martha Anne Zammit ◽  
Stefanie Marie Agius ◽  
Jean Calleja-Agius

AbstractTransient neonatal diabetes mellitus (TNDM) is a rare disorder, with a reported incidence of approximately 1 in 450,000 live births. It is characterized by insulin-requiring hyperglycemia in the neonatal period. The disease improves by early childhood, but the patient may relapse in later life. Diagnosis is made after genetic testing following presentation with hyperglycemia not conforming to Type 1 or Type 2 diabetes. Management is based on insulin and possible sulfonylurea administration. Three genetically distinct subtypes of TNDM are recognized. Type 1 TNDM is due to overexpression of genes at the 6q24 locus, whereas the 11p15 locus is involved in Type 2 and 3 TNDM. In this article the clinical presentation, management, and genetics of TNDM are discussed, particularly emphasizing the role of the neonatal nurse.


Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 25-OR
Author(s):  
SHAHANA SENGUPTA ◽  
LORI L. BONNYCASTLE ◽  
BENOIT HASTOY ◽  
ANTJE GROTZ ◽  
MAHESH M. UMAPATHYSIVAM ◽  
...  

2020 ◽  
Vol 33 (12) ◽  
pp. 1605-1608
Author(s):  
Xiao Qin ◽  
Jingzi Zhong ◽  
Dan Lan

AbstractObjectivesNeonatal diabetes mellitus (NDM) is a rare form of monogenic diabetes that is usually diagnosed in the first six months of life.Case presentationWe report on a male infant with neonatal diabetes who presented with diabetic ketoacidosis at two months and 16 days. A novel homozygous missense mutation (c.259T>G) was identified in the ABCC8 gene. In this case, insulin was replaced with glimepiride at a dosage of 0.49 mg/kg/day at five months, and this achieved metabolic control and satisfactory growth as observed at follow-up.ConclusionsThis report improves our understanding of the mutational spectrum of ABCC8, which is normally associated with NDM, and shows that the treatment regimen for this condition can be successfully switched from insulin therapy to the use of sulfonylurea.


2009 ◽  
Vol 31 (4) ◽  
pp. 816-820 ◽  
Author(s):  
Lindsey A. Loomba-Albrecht ◽  
Nicole S. Glaser ◽  
Dennis M. Styne ◽  
Andrew A. Bremer

2021 ◽  
Author(s):  
Riccardo Bonfanti ◽  
Dario Iafusco ◽  
Ivana Rabbone ◽  
Giacomo Diedenhofen ◽  
Carla Bizzarri ◽  
...  

Objective: Transient neonatal diabetes mellitus (TNDM) is caused by activating mutations in ABCC8 and KCNJ11 genes (KATP/TNDM) or by chromosome 6q24 abnormalities (6q24/TNDM). We wanted to assess whether these different genetic aetiologies result in distinct clinical features. Design: Retrospective analysis of the Italian data set of patients with TNDM. Methods: Clinical features and treatment of 22 KATP/ TNDM patients and 12 6q24/TNDM patients were compared. Results: Fourteen KATP/TNDM probands had a carrier parent with abnormal glucose values, four patients with 6q24 showed macroglossia and/or umbilical hernia. Median age at diabetes onset and birth weight were lower in patients with 6q24 (1 week; -2.27 SD) than those with KATP mutations (4.0 weeks; -1.04 SD) (p=0.009 and p=0.007, respectively). Median time to remission was longer in KATP/TNDM than 6q24/TNDM (21.5 vs 12 weeks) (p=0.002). Two KATP/TNDM patients entered diabetes remission without pharmacological therapy. A proband with the ABCC8/L225P variant previously associated with permanent neonatal diabetes entered 7-year long remission after 1 year of sulfonylurea therapy. Seven diabetic individuals with KATP mutations were successfully treated with sulfonylurea monotherapy; four cases with relapsing 6q24/TNDM were treated with insulin, metformin or combination therapy. Conclusions: If TNDM is suspected, KATP genes should be analyzed first with the exception of patients with macroglossia and/or umbilical hernia. Remission of diabetes without pharmacological therapy should not preclude genetic analysis. Early treatment with sulfonylurea may induce long-lasting remission of diabetes in patients with KATP mutations associated with PNDM. Adult patients carrying KATP/TNDM mutations respond favourably to sulfonylurea monotherapy.


Sign in / Sign up

Export Citation Format

Share Document