| Contributions of Basal and Postprandial Hyperglycemia Over a Wide Range of A1C Levels Before and After Treatment Intensification in Type 2 Diabetes. | |
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MedLine Citation:
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PMID: 22028279 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVETo determine the relative contributions of basal hyperglycemia (BHG) versus postprandial hyperglycemia (PPHG) before and after treatment intensification in patients with glycated hemoglobin A(1c) (A1C) >7.0% while on prior oral therapy.RESEARCH DESIGN AND METHODSSelf-measured, plasma-referenced glucose profiles and A1C values were evaluated from participants in six studies comparing systematically titrated insulin glargine with an alternative regimen (adding basal, premixed, or prandial insulin, or increasing oral agents). Hyperglycemic exposure (>100 mg/dL [5.6 mmol/L]) as a result of BHG versus PPHG was calculated.RESULTSOn prior oral therapy, 1,699 participants (mean age 59 years, diabetes duration 9 years) had mean fasting plasma glucose (FPG) of 194 mg/dL (10.8 mmol/L), and mean A1C was 8.7%. BHG contributed an average of 76-80% to hyperglycemia over the observed range of baseline A1C levels. Adding basal insulin for 24 or 28 weeks lowered mean FPG to 117 mg/dL (6.5 mmol/L), A1C to 7.0%, and BHG contribution to 32-41%. Alternative regimens reduced FPG to 146 mg/dL (8.1 mmol/L), A1C to 7.1%, and the contribution of BHG to 64-71%. BHG contributions for patients with A1C averaging 7.6-7.7% were 76% at baseline and 34 and 68% after adding basal insulin or other therapies, respectively.CONCLUSIONSWhen A1C is >7.0% despite oral therapy, BHG routinely dominates exposure. Intensified therapy reduces A1C and changes this relationship, but BHG amenable to further intervention still accounts for one-third of total hyperglycemia after basal insulin treatment and two-thirds after alternative methods. |
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Authors:
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Matthew Riddle; Guillermo Umpierrez; Andres Digenio; Rong Zhou; Julio Rosenstock |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-25 |
Journal Detail:
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Title: Diabetes care Volume: - ISSN: 1935-5548 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7805975 Medline TA: Diabetes Care Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Oregon Health and Science University, Portland, Oregon. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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