JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
RESEARCH SUPPORT, U.S. GOV'T, P.H.S.
Add like
Add dislike
Add to saved papers

The "dawn phenomenon"--a common occurrence in both non-insulin-dependent and insulin-dependent diabetes mellitus.

The dawn phenomenon is a condition recently described in patients with insulin-dependent diabetes mellitus (IDDM) that is characterized by abrupt increases in fasting levels of plasma glucose or insulin requirements or both between 5 and 9 a.m., in the absence of antecedent hypoglycemia. To determine its potential clinical relevance, we assessed its frequency and reproducibility in 20 patients with IDDM and in 13 patients with non-insulin-dependent diabetes mellitus (NIDDM) during overnight closed-loop (feedback-controlled) intravenous insulin infusion. After 6 a.m., plasma glucose levels increased similarly in NIDDM (89 +/- 2 mg per deciliter, midnight to 6 a.m., vs. 98 +/- 2 mg per deciliter, 6 to 9 a.m.; P less than 0.01). Insulin requirements increased at least 50 per cent for 1 1/2 hours in 77 per cent of patients with NIDDM and in 75 per cent of patients with IDDM. In five patients with IDDM who were studied on four occasions, the phenomenon occurred during 17 of the 20 observation periods, with insulin requirements after 6 a.m. increasing 225 +/- 34 per cent; coefficients of variation in individual patients ranged from 4 to 25 per cent. Thus, the dawn phenomenon occurs commonly in both NIDDM and IDDM, but its potential variability must be taken into consideration when one is attempting to adjust insulin doses.

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app