Glycated nail proteins as a new biomarker in management of the South Kivu Congolese diabetics

Diagnosis and monitoring of diabetes mellitus in sub-Saharan Africa, based on blood analyses, are hampered by infrastructural and cultural reasons. The first aim of this study was to evaluate the diagnostic accuracy of glycated nail proteins for diabetes mellitus. The second aim was to compare the c...

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Veröffentlicht in:Biochemia Medica 2015-01, Vol.25 (3), p.469-473
Hauptverfasser: Katchunga, Philippe B, Mirindi, Patrick N, Kishabongo, Antoine S, Cikomola, Justin C, Bwanamdogo, Socrate, Philippé, Jan, Speeckaert, Marijn M, Delanghe, Joris R
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container_end_page 473
container_issue 3
container_start_page 469
container_title Biochemia Medica
container_volume 25
creator Katchunga, Philippe B
Mirindi, Patrick N
Kishabongo, Antoine S
Cikomola, Justin C
Bwanamdogo, Socrate
Philippé, Jan
Speeckaert, Marijn M
Delanghe, Joris R
description Diagnosis and monitoring of diabetes mellitus in sub-Saharan Africa, based on blood analyses, are hampered by infrastructural and cultural reasons. The first aim of this study was to evaluate the diagnostic accuracy of glycated nail proteins for diabetes mellitus. The second aim was to compare the course of short- and long-term glycemic biomarkers after 6 months of antidiabetic treatment. These objectives should support our hypothesis that glycated nail proteins could be used as an alternative glycemic biomarker. This case-control study consisted of 163 black diabetics and 67 non-diabetics of the South Kivu (Democratic Republic of Congo). Diagnostic accuracy of glycated nail proteins was evaluated using ROC curve analysis. At the start of the study, glycated nail protein concentrations were compared between diabetics and non-diabetics, using a nitro blue tetrazolium (NBT) colorimetric method. In a subgroup of 30 diabetics, concentrations of glycated nail proteins, fasting glucose (Accu-Chek® Aviva), serum fructosamine (NBT) and HbA1c (DCA-2000+®) were measured at start and after 6 months. ROC analysis yielded an AUC of 0.71 (95% confidence interval (CI): 0.65-0.76) and a cut-off point of 3.83 μmol/g nail. Concentration of glycated nail proteins was significantly higher (P
doi_str_mv 10.11613/BM.2015.048
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The first aim of this study was to evaluate the diagnostic accuracy of glycated nail proteins for diabetes mellitus. The second aim was to compare the course of short- and long-term glycemic biomarkers after 6 months of antidiabetic treatment. These objectives should support our hypothesis that glycated nail proteins could be used as an alternative glycemic biomarker. This case-control study consisted of 163 black diabetics and 67 non-diabetics of the South Kivu (Democratic Republic of Congo). Diagnostic accuracy of glycated nail proteins was evaluated using ROC curve analysis. At the start of the study, glycated nail protein concentrations were compared between diabetics and non-diabetics, using a nitro blue tetrazolium (NBT) colorimetric method. In a subgroup of 30 diabetics, concentrations of glycated nail proteins, fasting glucose (Accu-Chek® Aviva), serum fructosamine (NBT) and HbA1c (DCA-2000+®) were measured at start and after 6 months. ROC analysis yielded an AUC of 0.71 (95% confidence interval (CI): 0.65-0.76) and a cut-off point of 3.83 μmol/g nail. Concentration of glycated nail proteins was significantly higher (P&lt;0.001) in diabetics in comparison with non-diabetics. After 6 months of antidiabetic treatment, a significant drop in the fasting glucose concentration (P=0.017) and concentration of glycated nail proteins (P=0.008) was observed in contrast to serum fructosamine and HbA1c. 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The first aim of this study was to evaluate the diagnostic accuracy of glycated nail proteins for diabetes mellitus. The second aim was to compare the course of short- and long-term glycemic biomarkers after 6 months of antidiabetic treatment. These objectives should support our hypothesis that glycated nail proteins could be used as an alternative glycemic biomarker. This case-control study consisted of 163 black diabetics and 67 non-diabetics of the South Kivu (Democratic Republic of Congo). Diagnostic accuracy of glycated nail proteins was evaluated using ROC curve analysis. At the start of the study, glycated nail protein concentrations were compared between diabetics and non-diabetics, using a nitro blue tetrazolium (NBT) colorimetric method. In a subgroup of 30 diabetics, concentrations of glycated nail proteins, fasting glucose (Accu-Chek® Aviva), serum fructosamine (NBT) and HbA1c (DCA-2000+®) were measured at start and after 6 months. ROC analysis yielded an AUC of 0.71 (95% confidence interval (CI): 0.65-0.76) and a cut-off point of 3.83 μmol/g nail. Concentration of glycated nail proteins was significantly higher (P&lt;0.001) in diabetics in comparison with non-diabetics. After 6 months of antidiabetic treatment, a significant drop in the fasting glucose concentration (P=0.017) and concentration of glycated nail proteins (P=0.008) was observed in contrast to serum fructosamine and HbA1c. Measurement of glycated nail proteins could be used to diagnose and monitor diabetes mellitus in sub-Saharan Africa.</abstract><cop>Croatia</cop><pub>Medicinska naklada</pub><pmid>26526975</pmid><doi>10.11613/BM.2015.048</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Area Under Curve
Biomarkers - analysis
Blood Glucose - analysis
Case-Control Studies
Colorimetry - methods
Democratic Republic of the Congo - epidemiology
Developing Countries
diabetes mellitus
Diabetes Mellitus - drug therapy
Diabetes Mellitus - metabolism
Disease Management
Drug Monitoring
Fasting - blood
fasting glucose concentration
Female
Follow-Up Studies
fructosamine
Fructosamine - blood
Glycated Hemoglobin A - analysis
Glycation End Products, Advanced - analysis
hemoglobin A1c protein
Humans
Hypoglycemic Agents - therapeutic use
Male
Middle Aged
nails
Nails - chemistry
ROC Curve
sub-Saharan Africa
Young Adult
title Glycated nail proteins as a new biomarker in management of the South Kivu Congolese diabetics
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