PMID- 25065076 OWN - NLM STAT- MEDLINE DCOM- 20140825 LR - 20221207 IS - 1049-510X (Print) IS - 1049-510X (Linking) VI - 24 IP - 3 DP - 2014 Summer TI - Maintenance of long-term adequate levels of vitamin d lowers HbA1c in African American patients with type 2 diabetes. PG - 335-41 AB - OBJECTIVES: We examined the long-term effects of enhanced Vitamin D (VitD) supplementation on parameters of type 2 diabetes mellitus (T2DM): serum hemoglobin A1c, low density lipoprotein, high density lipoprotein, and triglyceride for the purpose of determining beneficial VitD levels in T2DM African Americans (AA). DESIGN AND METHODS: Following inclusion criteria, retrospective charts of patients aged > or = 30 years were reviewed. VitD supplementation was given to patients as part of drug regimen over a three year continuum. Pearson correlations were used to assess the relationship between VitD levels and levels of each parameter. Repeated measure analysis of variance was conducted to identify difference in mean levels of each parameter between years with VitD included as part of therapy. RESULTS: Vitamin D supplementation was inversely associated with HbA1c (r = -.286, P = .031). No correlation was found between levels of VitD and levels of LDL, HDL or TG. Hemoglobin A1c levels were found to be significantly different under VitD treatment between year 1 (mean VitD 24.75 microg/mL, mean HbA1c 9.15%, P = .000) and year 2 (mean VitD 33.84 microg/mL, mean HbA1c 7.91%, P = .000) and between year 1 and year 3 (mean VitD 34.46 microg/mL, mean 7.98% HbA1c P = .000). CONCLUSION: In T2DM AA, significant improvements in HbA1c are obtained with enhanced VitD supplementation as part of drug regimen over time. Our investigation provides the first known evidence of a relationship between enhanced VitD supplementation as part of a pre-existing medical regimen taken over long term and determinants of T2DM in a group of overweight and obese AA with T2DM. FAU - Green, Rhea T AU - Green RT FAU - Gambhir, Kanwal K AU - Gambhir KK FAU - Nunlee-Bland, Gail AU - Nunlee-Bland G FAU - Odonkor, Wolali A AU - Odonkor WA FAU - Ganta, Vijaya A AU - Ganta VA LA - eng GR - P30 DK079637/DK/NIDDK NIH HHS/United States PT - Journal Article PL - United States TA - Ethn Dis JT - Ethnicity & disease JID - 9109034 RN - 0 (Glycated Hemoglobin A) RN - 0 (Lipoproteins, LDL) RN - 0 (Triglycerides) RN - 0 (Vitamins) RN - 1406-16-2 (Vitamin D) SB - IM MH - Adult MH - *Black or African American MH - Diabetes Mellitus, Type 2/*blood/drug therapy/*ethnology MH - Dietary Supplements MH - Drug Administration Schedule MH - Female MH - Glycated Hemoglobin/*metabolism MH - Humans MH - Lipoproteins, LDL/blood MH - Male MH - Middle Aged MH - Retrospective Studies MH - Time Factors MH - Triglycerides/blood MH - Vitamin D/blood/*therapeutic use MH - Vitamins/*therapeutic use EDAT- 2014/07/30 06:00 MHDA- 2014/08/26 06:00 CRDT- 2014/07/29 06:00 PHST- 2014/07/29 06:00 [entrez] PHST- 2014/07/30 06:00 [pubmed] PHST- 2014/08/26 06:00 [medline] PST - ppublish SO - Ethn Dis. 2014 Summer;24(3):335-41.