title: Atypical diabetes mellitus associated with bone marrow transplantation.
abstract: OBJECTIVE
  To describe 3 cases of atypical diabetes mellitus following bone marrow transplantation.
  
  
  METHODS
  We describe the clinical presentation and relevant laboratory findings of 3 patients who presented with new-onset diabetes mellitus after bone marrow transplantation and discuss the possible mechanisms.
  
  
  RESULTS
  A 52-year-old white man with chronic myelogenous leukemia, a 51-year-old white woman with acute myelogenous leukemia, and a 38-year-old Hispanic woman with acute myelogenous leukemia presented with acute onset of diabetes mellitus after bone marrow transplantation. Although blood glucose levels were initially very high, the patients required only small insulin dosages for glycemic control. Both the acute onset and requirement of relatively small insulin dosages were characteristic of type 1 diabetes mellitus. Onset of diabetes appeared to be unrelated to immunosuppressive drug therapy because it happened several months after starting these drugs. C-peptide was detectable, and glutamic acid decarboxylase antibodies were absent. Diabetes mellitus remitted spontaneously after a few months while the immunosuppressive drugs were continued.
  
  
  CONCLUSIONS
  Although the underlying mechanisms are unknown, cytokine changes after bone marrow transplantation may have led to temporary beta-cell dysfunction in these patients.
authors.affiliation: Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.
authors.forename: Ozlem
authors.initials: O
authors.lastname: Tor
authors.forename: Rajesh K
authors.initials: RK
authors.lastname: Garg
mesh_terms: D000328:Adult; D016026:Bone Marrow Transplantation / Q000009:adverse effects*; D016207:Cytokines / Q000378:metabolism; D003920:Diabetes Mellitus / Q000209:etiology* / Q000378:metabolism; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D016207:Cytokines