Type-1.5 Diabetes Mellitus with Autoimmune Hypothyroidism: A Rare Combination

UG Thakkar*, AV Vanikar and HL Trivedi

Autoimmune hypothyroidism may associate with type-1 Diabetes mellitus (DM) is a well-known entity as polyglandular autoimmune syndrome type-3. Type-1.5 DM is also known as late onset autoimmune mediated diabetes mellitus of adulthood (LADA) describing as- patients with type-2 diabetic phenotype based on age, not etiology combined with islet-cell antibodies and progressive β-cell failure, requiring life-time insulin therapy. Authors report a misdiagnosed type-2 diabetic since 3-years, of 35-years-male with known case of hypothyroidism had uncontrolled hyperglycemia, 12.7% glycosylated hemoglobin (HbA1C), 1.09ng/ml serum C-peptide and 26IU/ml glutamic acid decarboxylase (GAD) antibody, with anti-microsomal antibody titre of 827IU/ml and anti-thyroglobulin antibody titre of 130IU/ml, on  3 oral hypoglycemic agents. He was diagnosed as type-1.5 DM with autoimmune hypothyroidism. During 11-months of follow-up, after initiating insulin therapy patient had 6.7% HbA1C and normal thyroid function with oral thyroxin medication. So all young diabetic adults should evaluate for type-1.5 DM with autoimmune hypothyroidism.

Keywords: Diabetes mellitus; Blood sugar; Glycosylated hemoglobin; Glutamic acid decarboxylase antibody; C-peptide

Published on: Dec 28, 2016 Pages: 8-10

Full Text PDF Full Text HTML DOI: 10.17352/2455-8583.000013
CrossMark Publons Harvard Library HOLLIS Search IT Semantic Scholar Get Citation Base Search Scilit OAI-PMH ResearchGate Academic Microsoft GrowKudos Universite de Paris UW Libraries SJSU King Library SJSU King Library NUS Library McGill DET KGL BIBLiOTEK JCU Discovery Universidad De Lima WorldCat VU on WorldCat