OBJECTIVE- To describe a glucose abnormality in AIDS that is character
ized by transient NIDDM followed by hyperinsulinemic normoglycemia. RE
SEARCH DESIGN AND METHODS- A 36-yr-old Hispanic man with AIDS was on l
ong-standing aerosolized pentamidine therapy in 1986. He received a co
urse of intravenous pentamidine 5 mo before the onset of diabetes. Non
ketotic hyperglycemia responded to sulfonylurea, which had to be disco
ntinued 3 mo later because of normoglycemia. RESULTS- Diabetes diagnos
is was made by three separate fasting blood glucose values of 16.2, 18
.1, and 29.9 mM, and HbA1c of 10.1% (normal 4.2-5.9). The patient beca
me euglycemic 5 mo after diagnosis while on no treatment. An oral gluc
ose tolerance test was then normal, and C-peptide stimulation showed s
upranormal response. CONCLUSIONS- Transient severe NIDDM in this case
could not be linked to acute stress. Pentamidine, in a progressively i
ncreasing cumulative dose, is one possible, albeit unusual, etiology b
ecause the diabetes was not permanent. After diabetes remission, the d
ata suggest residual insulin resistance that is unusual in HIV-positiv
e patients. Diverse glucose abnormalities exist in AIDS. Awareness of
their presentation is clinically helpful.