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Joseph JJ, Langan S, Lunyera J, Kluwe B, Williams A, Chen H, Sachs MC, Hairston KG, Bertoni AG, Hsueh WA, Golden SH. The association of serum vitamin D with incident diabetes in an African American population. Nutr Diabetes 2022; 12:43. [PMID: 36229458 PMCID: PMC9562299 DOI: 10.1038/s41387-022-00220-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/08/2022] [Accepted: 09/23/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Incident diabetes risk is inversely proportional to 25-hydroxyvitamin D [25(OH)D] levels among non-Hispanic white but is unclear among African American (AA) populations. Serum 25(OH)D2 may be an important component of total 25(OH)D among AA populations due to higher levels of melanin. OBJECTIVE To assess the association of serum 25(OH)D with incident diabetes among AAs and stratify by detectable 25(OH)D2. DESIGN Serum 25(OH)D2 and 25(OH)D3 were collected from 2000 to 2004 among AA participants in the Jackson Heart Study. A cosinor model was used to adjust for the seasonality of 25(OH)D3; 25(OH)D3 and 25(OH)D2 were combined to ascertain total 25(OH)D. Incident diabetes (fasting glucose ≥126 mg/dl, use of diabetes drugs, or HbA1c ≥6.5%) was assessed over 12 years among adults without diabetes at baseline. Participants with missing baseline covariates or diabetes follow-up were excluded. Hazard ratios (HR) were estimated using Cox modeling, adjusting for age, sex, education, occupation, smoking, physical activity, alcohol use, aldosterone, and body-mass index. RESULTS Among 3311 adults (mean age 53.3 years, 63% female) 584 participants developed diabetes over a median of 7.7 years. After adjustment, 25(OH)D ≥20 compared to <12 ng/ml was associated with a HR 0.78 (95% CI: 0.61, 1.00). Among participants with detectable 25(OH)D2 and 25(OH)D3 (n = 1671), 25(OH)D ≥ 20 ng/ml compared to <12 ng/ml was associated with a 35% (HR 0.65, 95% CI: 0.46, 0.91) lower risk of diabetes. CONCLUSIONS Higher levels of 25(OH)D may be protective against the development of diabetes among AA individuals, particularly among those with detectable 25(OH)D2 and 25(OH)D3.
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Affiliation(s)
- Joshua J Joseph
- Division of Endocrinology, Diabetes and Metabolism, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
| | - Susan Langan
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joseph Lunyera
- Unit of Biostatistics, Duke University School of Medicine, Durham, NC, USA
| | - Bjorn Kluwe
- Division of Endocrinology, Diabetes and Metabolism, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Amaris Williams
- Division of Endocrinology, Diabetes and Metabolism, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Haiying Chen
- Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Michael C Sachs
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Kristin G Hairston
- Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Alain G Bertoni
- Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Willa A Hsueh
- Division of Endocrinology, Diabetes and Metabolism, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Sherita H Golden
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Zoubiri H, Tahar A, AitAbderrhmane S, Saidani M, Koceir EA. Oral Cholecalciferol Supplementation in Sahara Black People with Chronic Kidney Disease Modulates Cytokine Storm, Oxidative Stress Damage and Athero-Thromboembolic Risk. Nutrients 2022; 14:nu14112285. [PMID: 35684085 PMCID: PMC9182799 DOI: 10.3390/nu14112285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/26/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022] Open
Abstract
The 25-hydroxyvitamin D3 (25OHD3) deficiency in chronic kidney disease (CKD) is associated with immune system dysfunction (pro-inflammatory cytokines storm) through macrophages renal infiltration, oxidative stress (OxS) damage and athero-thromboembolic risk. Conversely, cholecalciferol supplementation (25OHD-S) prevents kidney fibrosis by inhibition of vascular calcification and nephrotic apoptosis (nephrons reduction). The objective of this study was to investigate the pleiotropic effects of 25OHD-S on immunomodulation, antioxidant status and in protecting against thromboembolic events in deficiency CKD Black and White individuals living in the Southern Sahara (SS). The oral 25OHD-S was evaluated in 60,000 IU/month/36 weeks versus in 2000 IU/day/24 weeks in Black (n = 156) and White (n = 150). Total serum vitamin D was determined by liquid chromatography-tandem mass spectrometry. All biomarkers of pro-inflammatory cytokines (PIC) were assessed by ELISA tests. OxS markers were assessed by Randox kits. Homocysteine and lipoproteine (a) were evaluated by biochemical methods as biomarkers of atherothromboembolic risk. All statistical analyses were performed with Student’s t-test and one-way ANOVA. The Pearson test was used to calculate the correlation coefficient. The means will be significantly different at a level of p value < 0.05. Multiple logistic regressions were performed using Epi-info and Statview software. Vitamin D deficiency alters the PIC profile, OxS damage and atherothrombogenic biomarkers in both SS groups in the same manner; however, these disorders are more acute in Black compared to White SS individuals. The results showed that the serum 25OHD3 concentrations became normal (>75 nmol/L or >30 ng/mL) in the two groups. We have shown that the dose and duration of 25OHD-S treatment are not similar in Black SS residents compared to White SS subjects, whilst the same inhabit the south Sahara environment. It appears that a high dose intermittent over a long period (D60: 36 weeks) was more efficient in Black people; while a lower dose for a short time is sufficient (D2: 24 weeks) in their White counterparts. The oral 25OHD-S attenuates PIC overproduction and OxS damage, but does not reduce athero-thromboembolic risk, particularly in Black SS residents.
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Affiliation(s)
- Houda Zoubiri
- Laboratory of Biology and Organisms Physiology, Team of Bioenergetics and Intermediary Metabolism Nutrition and Dietetics in Human Pathologies Post Graduate School, University of Sciences and Technology Houari Boumediene, El Alia, Bab Ezzouar, Algiers 16123, Algeria; (H.Z.); (A.T.)
- Biology and Physiology Laboratory, Ecole Nationale Supérieure de Kouba, Algiers 16308, Algeria
| | - Amina Tahar
- Laboratory of Biology and Organisms Physiology, Team of Bioenergetics and Intermediary Metabolism Nutrition and Dietetics in Human Pathologies Post Graduate School, University of Sciences and Technology Houari Boumediene, El Alia, Bab Ezzouar, Algiers 16123, Algeria; (H.Z.); (A.T.)
| | | | - Messaoud Saidani
- Clinical Nephrology Exploration Dialysis and Kidney Transplantation Unit, University Hospital Center of Beni Messous, Algiers 16014, Algeria;
| | - Elhadj-Ahmed Koceir
- Laboratory of Biology and Organisms Physiology, Team of Bioenergetics and Intermediary Metabolism Nutrition and Dietetics in Human Pathologies Post Graduate School, University of Sciences and Technology Houari Boumediene, El Alia, Bab Ezzouar, Algiers 16123, Algeria; (H.Z.); (A.T.)
- Correspondence: ; Tel.: +213-6-66-74-27-70; Fax: +213-(0)21-24-72-17
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Li YM, Feng Q, Jiang WQ, Wu BT, Feng JF. Evaluation of vitamin D storage in patients with chronic kidney disease: Detection of serum vitamin D metabolites using high performance liquid chromatography-tandem mass spectrometry. J Steroid Biochem Mol Biol 2021; 210:105860. [PMID: 33662569 DOI: 10.1016/j.jsbmb.2021.105860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 12/24/2020] [Accepted: 02/22/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Vitamin D (VitD) deficiency is extremely common in chronic kidney disease (CKD). However, the current clinical testing of vitamin D is based on the recommended serum 25-hydroxyvitamin D [25(OH)D]. The levels of VitD components in CKD patients are rarely reported. In this study, we tested various VitD components, and used different methods to evaluate the VitD status of CKD patients in vivo. METHODS Totally 173 CKD patients and 111 control individuals were enrolled. Serum levels of 25(OH)D2, 25(OH)D3, C3-epimers (C3-epi) and free 25(OH)D [f-25(OH)D] were measured. The 25(OH)D2/25(OH)D3 ratio, C3-epi/25(OH)D3 ratio, total 25(OH)D [t-25(OH)D], and bioavailable vitamin D (BAVD) were calculated, respectively. RESULTS The ratios of 25(OH)D2/25(OH)D3, C3-epi/25(OH)D3, and the level of C3-epi in CKD patients were significantly higher than those in the control group (all P < 0.05). The levels of t-25(OH)D, 25(OH)D3, C3-epi, f-25(OH)D and BAVD in patients with CKD stage 5 were significantly lower than those in stages 2, 3, and 4 (all P < 0.05). The calculated VitD storage according to Method 3 [25(OH)D2/3 + 25(OH)D3] was only 32.95 %, which was lower than the results of 53.76 % by Method 1 [25(OH)D2+ 25(OH)D3+C3-epi] and 48.56 % by Method 2 [25(OH)D2/3 + 25(OH)D3+C3-epi]. In addition, the VitD results calculated by three methods were positively correlated with f-25(OH)D and BAVD, while C3-epi levels were also positively correlated with f-25(OH)D and BAVD. CONCLUSION Serum levels of t-25(OH)D, 25(OH)D3, C3-epi, f-25(OH)D and BAVD in CKD patients gradually decrease with the progression of CKD stages. Though the results of VitD storage in CKD patients evaluated by different methods are different, simultaneous detection of 25(OH)D2, 25(OH)D3, C3-epi and f-25(OH)D levels and fully estimation of their respective biological activities could accurately evaluate the VitD storage in vivo.
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Affiliation(s)
- Yuan-Meng Li
- Department of Medical Laboratory, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Qian Feng
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan Province, China
| | - Wen-Qiang Jiang
- Department of Clinical Laboratory, Mianyang Central Hospital, Mianyang, 621000, Sichuan Province, China
| | - Bi-Tao Wu
- Department of Clinical Laboratory, Mianyang Central Hospital, Mianyang, 621000, Sichuan Province, China
| | - Jia-Fu Feng
- Department of Medical Laboratory, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China; Department of Clinical Laboratory, Mianyang Central Hospital, Mianyang, 621000, Sichuan Province, China.
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Lunyera J, Davenport CA, Pendergast J, Musani SK, Bhavsar NA, Sims M, Mwasongwe S, Wolf M, Diamantidis CJ, Boulware LE, Scialla JJ. Modifiers of Plasma 25-Hydroxyvitamin D and Chronic Kidney Disease Outcomes in Black Americans: The Jackson Heart Study. J Clin Endocrinol Metab 2019; 104:2267-2276. [PMID: 30668751 PMCID: PMC6489693 DOI: 10.1210/jc.2018-01747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 01/16/2019] [Indexed: 01/23/2023]
Abstract
BACKGROUND 25-hydroxyvitamin D [25(OH)D] is lower in black compared with white Americans but is not consistently associated with outcomes in this group, possibly due to genetic and other biological differences. We examined the association of plasma 25(OH)D and renal outcomes in black Americans with a focus on effect modifiers. METHODS We studied associations between baseline 25(OH)D with (i) annual rate of estimated glomerular filtration rate (eGFR) decline and (ii) incident chronic kidney disease (CKD) in the Jackson Heart Study, a prospective cohort of black Americans. Plasma 25(OH)D levels were corrected for monthly variation in sunlight exposure using the residual method. We used adjusted generalized linear models to evaluate outcomes and assessed potential effect modification by diabetes mellitus, vitamin D binding protein (DBP) genotype, obesity, dietary sodium intake, and use of renin-angiotensin-aldosterone system inhibitors. RESULTS Among 5164 participants with 25(OH)D available, plasma 25(OH)D was 14.5 ± 6.5 ng/mL (mean ± SD), and eGFR was 94.1 ± 22.0 mL/min/1.73 m2. Over a median of 8 years, eGFR decline was 1.3 ± 2.0 mL/min/1.73 m2 per year in 3228 participants with complete data, and 220 out of 1803 eligible participants developed incident CKD. Overall, 25(OH)D was not associated with eGFR decline in fully adjusted models. However, higher 25(OH)D was associated with slower eGFR decline among those with diabetes: each 5 ng/mL higher 25(OH)D was associated with a 0.27 mL/min/1.73 m2/y slower eGFR decline (95% CI, 0.13 to 0.41; P < 0.001). Higher 25(OH)D was not associated with incident CKD overall, but it was associated with lower odds of incident CKD among participants with the GG or GT genotype at rs7041 in the gene encoding DBP [OR, 0.69 per 5 ng/mL higher 25(OH)D; 95% CI, 0.51 to 0.93; P-interaction = 0.005]. Other interactions were not significant. CONCLUSION These findings support a potential benefit of higher 25(OH)D for kidney health in black Americans with diabetes or specific variants in DBP.
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Affiliation(s)
- Joseph Lunyera
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Clemontina A Davenport
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina
| | - Jane Pendergast
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, North Carolina
| | - Solomon K Musani
- Jackson Heart Study, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
| | - Nrupen A Bhavsar
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Mario Sims
- Jackson Heart Study, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
| | - Stanford Mwasongwe
- Jackson Heart Study, School of Public Health, Jackson State University, Jackson, Mississippi
| | - Myles Wolf
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina
| | | | - L Ebony Boulware
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Julia J Scialla
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina
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