scholarly journals Vitamin D Deficiency in Patients with Diabetes in French Guiana: Epidemiology and Relation with Microvascular and Macrovascular Complications

Nutrients ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 4302
Author(s):  
Elise Girard ◽  
Mathieu Nacher ◽  
John Bukasa-Kakamba ◽  
Aniza Fahrasmane ◽  
Antoine Adenis ◽  
...  
Keyword(s):  
Vitamin D ◽  
French Guiana ◽  
Diabetes Complications ◽  
Glycated Hemoglobin ◽  
High School Education ◽  
Patients With Diabetes ◽  
The Mean ◽  
Glycated Hemoglobin Level ◽  
Microvascular And Macrovascular Complications ◽  
The Relationship

Vitamin D (VD) insufficiency is common among patients with diabetes in French Guiana. The study aimed to evaluate the prevalence of VD deficiency in the different type of diabetes encountered and to analyze the relationship between VD deficiency and diabetes complications. Methods: An observational study was conducted between May 2019 and May 2020 in French Guiana, based on data from the CODIAM study (Diabetes Cohort in French Amazonia), describing the characteristics of patients with diabetes mellitus. Among 600 patients enrolled with diabetes, 361 had an available VD assay. Results: The mean 25(OH)VD (hydroxycalciferol) level was 27.9 ng/mL. The level of VD was inversely proportional to the HbA1c (glycated hemoglobin) level. Patients with angina pectoris had a greater proportion of deficiencies VD < 20 ng/mL than those without angina. By contrast, patients with retinopathy had higher vitamin D concentrations than those without retinopathy. There was no association between vitamin D and arteriopathy, stroke, nephropathy and polyneuropathy. VD deficiency was more frequent in women, and in patients with a high school education. Conclusion: The prevalence of VD deficiency was high in patients with diabetes in French Guiana, emphasizing the importance of VD supplementation.

scholarly journals Mediating Effect of Acceptance Action in relationship between Diabetes Self-Stigma and Quality of Life in People with Diabetes in Korea

2021 ◽  
Vol 28 (3) ◽  
pp. 384-394
Author(s):  
Kawoun Seo
Keyword(s):  
Quality Of Life ◽  
Explanatory Power ◽  
Mediating Effect ◽  
Research Approach ◽  
Mediating Effects ◽  
Descriptive Research ◽  
Patients With Diabetes ◽  
The Mean ◽  
The Relationship

Purpose: This study was done to investigate the mediating effects of acceptance action on the relationship between diabetes self-stigma and quality of life in diabetes patients.Methods: For this study a descriptive research approach was used. Patients (237) with a diagnosis of diabetes mellitus from a doctor of endocrinology were included. Data collection was done from March 26, to March 28, 2020. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson’s correlation coefficient analysis, and hierarchecal multiple regression.Results: The mean scores for diabetes self-stigma, acceptance action and quality of life were 2.67±0.71, 4.12±0.38, and 3.26±0.48, respectively. Acceptance action was found to partial mediate the relationship between diabetes self-stigma and quality of life (z=-4.20, p<.001), and its explanatory power was 17.6%.Conclusion: To improve the quality of life among patients with diabetes in diabetes self-stigma situations, it is necessary to improve their acceptance action and develop step-by-step and differentiated acceptance action enhancement programs through multidisciplinary collaboration.

INTERRELATION OF HEMORHEOLOGICAL PARAMETERS WITH GLUCOSE AND GLYCATED HEMOGLOBIN IN PATIENTS WITH DIABETES MELLITUS TYPE2

2018 ◽  
Author(s):  
А.В. Муравьев ◽  
И.А. Тихомирова ◽  
С.В. Булаева ◽  
Ю.В. Малышева ◽  
А.В. Замышляев
Keyword(s):  
Diabetes Mellitus ◽  
Glycated Hemoglobin ◽  
Healthy Individuals ◽  
Glucose Content ◽  
Metabolic Hormones ◽  
Metabolism Regulation ◽  
Patients With Diabetes ◽  
Glycated Hemoglobin Level ◽  
Blood Transport

Введение. Нарушения реологических свойств крови при сахарном диабете 2 типа (СД-2) может приводить к снижению микрососудистой перфузии. Основной механизм, вероятно, связан с ухудшением микрореологии эритроцитов, в том числе из-за высокого содержания глюкозы и гликозилирования белков мембран клеток. Цель исследования: провести анализ связи гемореологических характеристик цельной крови и эритроцитов с содержанием глюкозы и гликированного гемоглобина и выявить влияние ряда метаболических гормонов на микрореологию эритроцитов у больных СД-2. Материалы и методы. У 30 больных СД-2 регистрировали параметры гемореологического профиля. Наряду с измерениями вязкости, деформируемости эритроцитов (ДЭ) и их агрегации (АЭ) определяли содержание глюкозы, гликированного гемоглобина и белков плазмы (альбуминов, глобулинов, фибриногена). В in vitro исследованиях регистрировали микрореологические характеристики эритроцитов после их инкубации с глюкозой и рядом метаболических гормонов (инсулином, глюкагоном, адреналином). Результаты. Наиболее существенные отличия гемореологических профилей у больных СД-2 от данных здоровых лиц были в их микрореологической части. Значения глюкозы и гликированного гемоглобина более выражено коррелировали с показателями гемореологического профиля у больных СД-2, чем у здоровых лиц: коэффициент корреляции между АЭ и концентраций глюкозы у больных СД-2 составил 0,660, в контрольной группе — 0,480. Под влиянием инсулина ДЭ достоверно повышалась, а АЭ, напротив, снижалась (p < 0,05). При инкубации эритроцитов с глюкагоном у больных СД-2 и у здоровых лиц АЭ была снижена на сходную величину. Адреналин в трех концентрациях умеренно повышал ДЭ (p < 0,05), а наблюдавшийся прирост АЭ был наибольшим при низкой концентрации гормона (0,01 мкМ). Заключение. Анализ параметров гемореологического профиля у больных СД-2 свидетельствует о нарушениях текучести крови и снижении ее транспортных возможностей. Также было показано, что гормоны, участвующие в регуляции метаболизма, оказывают прямое воздействие на микрореологию эритроцитов. Introduction. Disorders of blood rheological properties in diabetes mellitus type 2 (DM-2) can lead to reduction of microvascular perfusion. The main mechanism is probably associated with impairment of erythrocytes microrheology and also due to high glucose content and glycosylation of cell membrane proteins. Aim: to analyze the relationship between hemorheological characteristics of whole blood and erythrocytes with glucose content and glycated hemoglobin level, and to reveal the infl uence of metabolic hormones on erythrocytes microrheology in patients with DM-2. Materials and methods. In 30 patients with DM-2 we determined hemorheological parameters, blood viscosity, erythrocytes deformability (ED), erythrocytes aggregation (EA), glucose and glycated hemoglobin content, plasma proteins (albumins, globulins, fibrinogen) levels. In in vitro studies we recorded the microrheological characteristics of erythrocytes after their incubation with glucose and with some metabolic hormones (insulin, glucagon, adrenaline). Results. Microrheological parameters in patients with DM-2 diff ered signifi cantly from the parameters in healthy individuals. Glucose and glycated hemoglobin values more evidently correlated with hemorheological parameters in patients with DM-2 than in healthy individuals: the correlation coeffi cient between EA and glucose concentration in patients with DM-2 was 0.660, in healthy individuals — 0.480. Under insulin stimulus ED signifi cantly increased and AE, on contrary, decreased (p < 0.05). During erythrocytes incubation with glucagon EA similar reduced in patients with DM-2 and in healthy individuals. Adrenaline in three concentrations moderately increased ED (p < 0.05), and the observed EA increasing was greatest at low hormone concentration (0.01 μM). Conclusion. Analysis of hemorheological parameters in patients with DM-2 showed disorders of blood fl uidity and decreasing of blood transport capacity. It was also shown that hormones involved in metabolism regulation had a direct effect on erythrocytes microrheology.

Association of serum 25-hydroxy vitamin D and body mass index in cancer

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 6625-6625
Author(s):  
D. Gupta ◽  
K. Trukova ◽  
P. G. Vashi ◽  
A. Adams ◽  
G. M. Lambert ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Vitamin D ◽  
Cancer Patients ◽  
Body Mass ◽  
Case Series ◽  
Spearman Correlation ◽  
Dietary Recommendations ◽  
25 Hydroxy Vitamin D ◽  
The Mean ◽  
The Relationship

6625 Background: The association between vitamin D and obesity remains unsettled with studies reporting conflicting findings on the relationship between the two. This association assumes even greater importance in cancer because of the alleged role of vitamin D in cancer risk and survival. Currently, the dietary recommendations for Vitamin D do not take into account a person's body mass index (BMI). We investigated the relationship between serum 25-hydroxy-vitamin D [25(OH)D] and BMI in a large sample of cancer patients. Methods: A consecutive case series of 740 cancer patients seen at Cancer Treatment Centers of America from Jan 08 to June 08. Serum 25(OH)D was measured at presentation to the hospital. The cohort was divided in 4 BMI groups (<18.5, 18.5–24.9, 25–29.9, and >30.0 kg/m2). Correlation between 25(OH)D and BMI was evaluated using Spearman correlation coefficient. Mean 25(OH)D was compared across the 4 BMI groups using ANOVA. Linear regression was used to quantify the relationship between BMI and 25(OH)D. Results: Of 740 patients, 303 were males and 437 females. The mean age at presentation was 55.7 years (SD = 10.2). The mean BMI was 27.9 kg/m2 (SD = 6.7). Most common cancers were lung (134, 18.1%), breast (131, 17.7%), colorectal (97, 13.1%), pancreas (86, 11.6%), prostate (45, 6.1%) and ovarian (39, 5.3%). The mean serum 25(OH)D was 21.9 ng/ml (SD = 13.5). Analysis revealed that as BMI groups increased from normal to overweight or obese classifications, there was a significant decrease in 25(OH)D (Table). The Spearman correlation between 25(OH)D and BMI was -0.20 (p = 0.001). Every 1 kg/m2 increase in BMI was significantly associated with a 0.43 ng/ml decline in serum 25(OH)D (p = 0.001). Conclusions: We found that obese cancer patients (BMI >=30 kg/m2) had significantly lower levels of serum 25(OH)D as compared to nonobese patients (BMI <30 kg/m2). BMI should be taken into account when assessing a patient's vitamin D status and more aggressive vitamin D supplementation should be considered in obese cancer patients. [Table: see text] No significant financial relationships to disclose.

scholarly journals Clinical course and outcome in diabetic patients with COVID-19

2020 ◽  
Vol 7 (2) ◽  
pp. e23-e23
Author(s):  
Zahra Davoudi ◽  
Ilad Alavi Darazam ◽  
Farnaz Saberian ◽  
Sina Homaee ◽  
Shervin Shokouhi ◽  
...  
Keyword(s):  
Glycated Hemoglobin ◽  
Clinical Course ◽  
Severe Disease ◽  
Invasive Mechanical Ventilation ◽  
Cross Sectional Study ◽  
Diabetic Patients ◽  
Cross Sectional ◽  
Risk Of Death ◽  
Patients With Diabetes ◽  
The Mean

Introduction: As diabetes is highly prevalent worldwide, understanding particular dimensions of COVID-19 infection in diabetic patients is of significant importance. Objectives: The present research aimed to evaluate the outcome of diabetic patients with COVID-19 infection, and the clinical and biochemical characteristics in survived and non-survived patients. Patients and Methods: The present single-center, cross-sectional study examined laboratory and clinical features of 160 patients with diabetes who had moderate to severe criteria. The obtained data were categorized as survived or non-survived patients and then we compared the clinical characteristics in two groups. Results: In this study, 160 diabetic patients (75 men and 85 women) admitted with moderate to severe Covid-19 were evaluated. The mean age of studied patients was 51-90 years old, with diabetes duration of 5 to 15 years. One hundred thirty-one patients (81.9%) survived, but twenty-nine patients (18.1%) did not survive. Regarding the comparison of symptoms, only the loss of consciousness on admission was higher in non- survived patients; however, a majority of the non-survivors have been admitted to ICU, 23(79.3%) and 26 (89.6%) needed invasive mechanical ventilation; in comparison to survived patients also had a shorter duration of hospital stay (5.5±5.1 versus 8.4±6.1days). Non–survivors more probably suffer from high blood pressure [23 (79.3%) patients versus 80 (61%) patients] and chronic kidney disease [20 (69%) patients versus 9 (6.9%) patients; P<0.001]. Glycated hemoglobin (HbA1c) of more than 9%, and high fasting blood sugar, severe inflammatory response, hepatic, renal, and coagulation impairment was higher in non–survived than those who survived. Conclusion: Multifactorial parameters result in the poor prognosis in diabetic patients; therefore, it is critical for identifying the key clinical, as well as laboratory characteristics of COVID-19 cases that lead to severe disease and increase the risk of death.

scholarly journals Association of vitamin D2 and D3 with type 2 diabetes complications

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Lina H. M. Ahmed ◽  
Alexandra E. Butler ◽  
Soha R. Dargham ◽  
Aishah Latif ◽  
Amal Robay ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Vitamin D ◽  
Diabetic Retinopathy ◽  
Diabetes Complications ◽  
Microvascular Complications ◽  
Middle Eastern ◽  
Middle Eastern Population ◽  
Diabetic Microvascular Complications ◽  
The Relationship

Abstract Aims Vitamin D measurement is a composite of vitamin D2 (25(OH)D2) and D3 (25(OH)D3) levels, and its deficiency is associated with the development of type 2 diabetes (T2DM) and diabetic complications; vitamin D deficiency may be treated with vitamin D2 supplements. This study was undertaken to determine if vitamin D2 and D3 levels differed between those with and without T2DM in this Middle Eastern population, and the relationship between diabetic microvascular complications and vitamin D2 and vitamin D3 levels in subjects with T2DM. Methods Four hundred ninety-six Qatari subjects, 274 with and 222 without T2DM participated in the study. Plasma levels of total vitamin D2 and D3 were measured by LC-MS/MS analysis. Results All subjects were taking vitamin D2 and none were taking D3 supplements. Vitamin D2 levels were higher in diabetics, particularly in females, and higher levels were associated with hypertension and dyslipidemia in the diabetic subjects (p < 0.001), but were not related to diabetic retinopathy or nephropathy. Vitamin D3 levels measured in the same subjects were lower in diabetics, particularly in females (p < 0.001), were unrelated to dyslipidemia or hypertension, but were associated with retinopathy (p < 0.014). Neither vitamin D2 nor vitamin D3 were associated with neuropathy. For those subjects with hypertension, dyslipidemia, retinopathy or neuropathy, comparison of highest with lowest tertiles for vitamin D2 and vitamin D3 showed no difference. Conclusions In this Qatari cohort, vitamin D2 was associated with hypertension and dyslipidemia, whilst vitamin D3 levels were associated with diabetic retinopathy. Vitamin D2 levels were higher, whilst vitamin D3 were lower in diabetics and females, likely due to ingestion of vitamin D2 supplements.

scholarly journals Lack of Correlation of the Serum 25(OH) Vitamin D Levels with the Glycated Hemoglobin A1c and the Lipid Profile in Type 2 Diabetes Patients on Oral Antidiabetic Drugs – Preliminary Data

2014 ◽  
Vol 41 (2) ◽  
pp. 12-19 ◽  
Author(s):  
D. Bakalov ◽  
M. Boyanov ◽  
A. Tsakova
Keyword(s):  
Type 2 Diabetes ◽  
Vitamin D ◽  
Hemoglobin A1c ◽  
Glycated Hemoglobin ◽  
Glycated Hemoglobin A1c ◽  
Vitamin D Levels ◽  
The Mean ◽  
25 Oh Vitamin D ◽  
Diabetes Patients

Summary Data from different studies correlating the serum 25(OH)D levels with the metabolic and glycemic parameters in type 2 diabetes patients are still varying. The objective if this study was to describe the correlation between serum 25(OH)D levels and some metabolic parameters in Bulgarian type 2 diabetes patients on oral antidiabetic drugs. One hundred type 2 diabetes patients participated - 56 men and 44 women. The mean age and diabetes duration of the women was 59.0 and 9.8 years, of the men - 58.0 and 7.7 years respectively. Complete patient history was taken and physical examination was performed (body weight and height, waist circumference). Body composition was measured on a leg-to-leg body impedance analyzer (TBF-215, Tanita Corp., Tokyo, Japan). Serum levels of vitamin D were measured by electro-hemi-luminescent detection as 25-(ОН) D Total (ECLIA, Elecsys 2010, Roche Diagnostics, Switzerland). Glycated hemoglobin A1c was measured on a NycoCard reader (Alere™). Total, HDL-cholesterol (direct) and triglycerides were analyzed on a Cobas Integra 400+ analyzer. Correlation analysis was performed on a SPSS 13.0 for Windows platform and included 10 curves. The data were first analyzed for the group as a whole and then separately for men and women as well as in the different vitamin D tertiles. The mean serum 25-OH-vitamin D levels were 23.8 ± 12.1 nmol/l in women and 33.3 ± 20.0 nmol/l in men. We were unable to find any statistically significant correlation between serum 25(OH) vitaminand the serum lipids (cholesterol profile and triglycerides). On the contrary, there was a weak correlation with the glycated hemoglobin A1c (cubic model, R2 = 0.178, p = 0.05) and the BMI (inverse model, R2 = 0.101, p = 0.038). The sub-analyses (men versus women or according to tertiles of vitamin D) did not produce any additional information. The influence of vitamin D on the parameters of the metabolic control in type 2 diabetes is very weak on an individual level. It might be only demonstrated in large epidemiological surveys.

scholarly journals Relation between vitamin D deficiency and osteoarthritis

2020 ◽  
Vol 4 (1) ◽  
pp. 1-4
Author(s):  
Ahmad Gharaibeh
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Calcium Level ◽  
Vitamin D Supplementation ◽  
University Hospital ◽  
Phosphorus Level ◽  
Normal Range ◽  
Health Records ◽  
The Mean ◽  
The Relationship

Purpose of the Work: The main objective of our work is to determine the relationship between osteoarthritis and deficiency of vitamin D in our region in central Europe and to make a database for further researches, to be effective in investigating, controlling, and preventing OA and vitamin D deficiency in our population. Methodology: We perform a retrospective study in adult patients≥25years with osteoarthritis big joints from their health records, which were seen at the osteology clinic of University Hospital Louise Pasteur during the year 2018. The authors analyse the blood tests of Vitamin D level, calcium level, phosphorus level, B ALP, glomerular filtration rate (GFR) levels in the serum of these patients. Results: There were 47 patients with osteoarthritis. All of these patients had Vitamin D deficiency. The mean age of our group is 71 years. 12.8% (7) are male and 87.2% (41)are female. The mean of vitamin D is 24mmol/l (normal range 75-200 nmol/l), Calcium level with in normal range, Phosphorus level mean was within normal range and B ALP level within normal. Conclusion: Osteoarthritis increased by deficiency of vitamin D level in blood serum and increasing with age. Vitamin D is a fat-soluble vitamin that regulates calcium and phosphorus metabolism, maintenance of the normal skeletal and muscular systems. Most of the patients show OA in hip and knee and in advanced age 71 years. Vitamin D supplementation may be a safe method to treat and prevent OA.

scholarly journals The Relationship Between Serum Vitamin D Level and Severity of Bronchiolitis in Infants Being Referred to in Bandar Abbas Children’s Hospital, Iran

2020 ◽  
Vol 9 (3) ◽  
pp. 96-100
Author(s):  
Mohammad Bagher Rahmati ◽  
Mehran Ahmadi ◽  
Seyed Alireza Sobhani ◽  
Morteza Bakhshi ◽  
Hosein Hamadiyan ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Serum Levels ◽  
Children's Hospital ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Children’S Hospital ◽  
The Mean ◽  
Bandar Abbas ◽  
The Relationship

Background: The present study aimed to investigate the relationship between the serum vitamin D level and the severity of bronchiolitis in infants. Materials and Methods: The population of this descriptive-analytical study included all infants within the age range of 1 month to 24 months old with bronchiolitis hospitalized in Bandar Abbas children’s hospital in 2018-2019. According to the exclusion and inclusion criteria, patients were entered in the study and diagnosed with bronchiolitis by a pediatric infectious disease specialist. Then, their serum levels of vitamin D were measured as well. Results: Of the 85 patients, 62.4% and 37.6% were males and females, respectively. The mean serum level of vitamin D was 29.74±13.44 ng/mL. In addition, the mean age in groups with mild-, moderate-, and severe-intensity was 9.27±4.52 months, 5.12±3.95 months, and 3.16±1.16 months (P<0.001), respectively. Further, the Spearman’s correlation between age and serum vitamin D levels was r = 0.05 (P<0.001). Based on the results, there was a statistically significant difference between the mean age in the two study groups (P<0.001). Finally, a statistically significant association was found between the severity of bronchiolitis and vitamin D status (P=0.007). Conclusion: According to the results of the present study, more than half of the infants admitted to the diagnosis of bronchiolitis had insufficient serum levels of vitamin D. There was also a significant association between the severity of bronchiolitis and serum vitamin D levels.

scholarly journals Prevalence of vitamin D is not associated with the COVID-19 epidemic in Europe. A critical update of the existing evidence

2021 ◽  
Author(s):  
Dimitra Rafailia Bakaloudi ◽  
Michail Chourdakis
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Preventive Measures ◽  
Methodological Approach ◽  
Adult Population ◽  
Correlation Coefficients ◽  
European Countries ◽  
Global Pandemic ◽  
The Mean ◽  
The Relationship

ABSTRACTBackgroundCOVID-19 has emerged as a global pandemic, affecting nearly 104 million people worldwide as of February 4th 2021. In previous published studies, the association between the mean Vit D status of each country and COVID-19 infection rate, and mortality among the adult population in European countries was examined. The aim of this study was to re-examine the relationship between the Vit D status of each country and COVID-19 infection, recovery, and mortality using updated data and a different methodological approach.MethodsInformation only form the last decade on Vit D concentration/deficiency for each country was retrieved through literature search on PubMed® database. As of February, 4th 2021, COVID-19 infections and mortalities per one million population as well as total recoveries were extracted from the Worldometer website. The association between vitamin D deficiency and COVID-19 infection, recovery, and mortality were explored using correlation coefficients and scatterplots.FindingsThe prevalence of vitamin D deficiency among European countries ranged from 6.0 (Finland) to 75.5% (Turkey), with several countries facing more than 50% of vitamin D deficiency among their population. Non-significant correlations were observed between the number of COVID-19 infections (r=0.190; p=0.374), recoveries (rs=0.317, p=0.131), and mortalities (r=0.129; p=0.549) per one million population, with the prevalence of vitamin D deficiency.InterpretationPrevalence of vitamin D deficiency was not significantly associated with either number of infections, recoveries or mortality rate of COVID-19 among European countries. Thus, it is an important parameter to be considered when implementing preventive measures to face COVID-19.FundingNone

scholarly journals Association Between 25(OH)Vitamin D, HbA1c and Albuminuria in Diabetes Mellitus: Data From a Population-Based Study (VIDAMAZON)

2021 ◽  
Vol 12 ◽  
Author(s):  
João Soares Felício ◽  
Hana Andrade de Rider Britto ◽  
Pedro Celeira Cortez ◽  
Fabrício de Souza Resende ◽  
Manuela Nascimento de Lemos ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Vitamin D ◽  
Glycemic Control ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Vitamin D Levels ◽  
Patients With Diabetes ◽  
25 Hydroxy Vitamin D ◽  
The Relationship

BackgroundThe effect of glycemic control on diabetic kidney disease (DKD) is well known. Recent evidence has suggested that Vitamin D (VD) may have a nephroprotective effect in diabetes, but the relationship between VD, glycemic control, and albuminuria has yet to be clarified.ObjectiveEvaluate the relationship between 25-hydroxy-vitamin D [25(OH)D], HbA1c, and albuminuria in Diabetes Mellitus (DM).Patients and MethodsCross-sectional study with 1576 individuals with DM who had 25(OH)D, HbA1c, and albuminuria levels measured. Patients with abnormal creatinine levels were excluded, in order to avoid interference on VD levels by impaired kidney function.ResultsPatients with HbA1c ≥7% had lower 25(OH)D when compared to patients with HbA1c &lt;7% (29.7 ± 10.2 vs 28.1 ± 9.9 ng/ml, p = 0.003) and 25(OH)D levels seems to predict 1.5% of HbA1c behavior. The 25(OH)D concentrations in patients with normoalbuminuria were higher than the levels observed in those with micro or macroalbuminuria (29.8 ± 9.0 vs 26.8 ± 8.6 and 25.1 ± 7.6, respectively, p = 0.001), patients who had 25(OH)D &lt;20 ng/ml and 25(OH)D &lt;30 ng/ml were at a higher risk of presenting albuminuria [OR = 2.8 (95% CI = 1.6 – 4.9), p&lt;0.001, and OR = 2.1 (95% CI = 1.3 - 4.6), p&lt;0.001, respectively]. In our regression model, albuminuria was influenced by HbA1c (r² = 0.076, p&lt;0.00001) and 25(OH)D (r² = 0.018, p = 0.002) independently.ConclusionOur study found an association between vitamin D levels, HbA1c and DKD. Additionally, our data suggest that the association between urinary albumin excretion and vitamin D levels is independent of glycemic control in patients with diabetes. Even though our patients presented normal creatinine levels, it is necessary further prospective studies to confirm if this association precedes or not the loss of renal function.

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