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Heo JC, Kim D, An H, Son CS, Cho S, Lee JH. A Novel Biosensor and Algorithm to Predict Vitamin D Status by Measuring Skin Impedance. SENSORS (BASEL, SWITZERLAND) 2021; 21:8118. [PMID: 34884121 PMCID: PMC8662433 DOI: 10.3390/s21238118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 12/01/2022]
Abstract
The deficiency and excess of vitamin D cause various diseases, necessitating continuous management; but it is not easy to accurately measure the serum vitamin D level in the body using a non-invasive method. The aim of this study is to investigate the correlation between vitamin D levels, body information obtained by an InBody scan, and blood parameters obtained during health checkups, to determine the optimum frequency of vitamin D quantification in the skin and to propose a vitamin D measurement method based on impedance. We assessed body composition, arm impedance, and blood vitamin D concentrations to determine the correlation between each element using multiple machine learning analyses and an algorithm which predicted the concentration of vitamin D in the body using the impedance value developed. Body fat percentage obtained from the InBody device and blood parameters albumin and lactate dehydrogenase correlated with vitamin D level. An impedance measurement frequency of 21.1 Hz was reflected in the blood vitamin D concentration at optimum levels, and a confidence level of about 75% for vitamin D in the body was confirmed. These data demonstrate that the concentration of vitamin D in the body can be predicted using impedance measurement values. This method can be used for predicting and monitoring vitamin D-related diseases and may be incorporated in wearable health measurement devices.
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Affiliation(s)
- Jin-Chul Heo
- Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Korea;
| | - Doyoon Kim
- Samsung Research, Samsung Electronics, Suwon 16677, Korea; (D.K.); (H.A.)
| | - Hyunsoo An
- Samsung Research, Samsung Electronics, Suwon 16677, Korea; (D.K.); (H.A.)
| | - Chang-Sik Son
- Division of Intelligent Robot, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Korea;
| | - Sangwoo Cho
- The Center for Advanced Technology in Testing Human Factors, Keimyung University, Daegu 42601, Korea;
| | - Jong-Ha Lee
- Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Korea;
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Hosseini MS, Razavi Z, Ehsani AH, Firooz A, Afazeli S. Clinical Significance of Non-invasive Skin Autofluorescence Measurement in Patients with Diabetes: A Systematic Review and Meta-analysis. EClinicalMedicine 2021; 42:101194. [PMID: 34841236 PMCID: PMC8605318 DOI: 10.1016/j.eclinm.2021.101194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/15/2021] [Accepted: 10/25/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Advanced glycation end products (AGE), one of the main factors causing diabetic end-organ damage, accumulate in long half-life proteins, such as skin and cartilage collagen. AGE measurement may offer additional evidence to predict diabetic vascular complications. Skin autofluorescence (SAF) is suggested as a non-invasive, quick, and reliable method to measure tissue AGE level. The aim of this study was to review and evaluate evidence on the clinical validation of SAF measurement in diabetes mellitus (DM) patients. METHODS In this systematic review and meta-analysis, we searched "PubMed" (MEDLINE) and "Cochrane" databases from their inception to 10 August 2021 for observational studies concerning SAF measurement in diabetic patients. The following key terms were used in advanced searching: "Diabetes", "Diabetes Mellitus"," DM", "Glycation ", "Advanced Glycation End product", "AGE", "skin autofluorescence", "SAF". Published studies that included DM patients and estimated their AGE using SAF were considered eligible for meta-analysis. Articles that were editorials, study proposals, congress posters, or case reports and were not on human subjects were excluded. We used a random-effect models for meta-analyzing the clinical validation of SAF in DM with particular emphasis on chronic diabetes complications. FINDINGS We identified 881 records and twenty-nine records fulfilled our eligibility criteria and were included in the systematic review and meta-analysis. A statistically significant correlation was found between SAF and diabetes last HbA1c 0.21(0.13,0.28) in studies with substantial heterogeneity (I2=77.99%, p<0.05). Nevertheless, a significant positive association between SAF level and diabetic retinopathy (DR) [(OR= 1.05, 95% CI=1.03,1.08), (I2=63.78%, p<0.05)], diabetic peripheral neuropathy (DPN) [(OR= 1.11, 95%CI= 1.06,1.16), (I2=79.17%, p<0.05)], diabetic nephropathy (DNP) [(OR= 1.08, 95%CI: 1.05,1.11), (I 2 =65.36%, p<0.05)] and diabetic macrovascular events (D-MVE) [(OR=1.08, 95%CI=1.05,1.11) (I2=67.32, p<0.05)] were found. INTERPRETATION Our study confirmed the significance of SAF measurement as a non-invasive surrogate marker of DM micro and macrovascular complications. Skin AGE estimation may be a useful factor for the prediction and early detection of irreversible DM complications. More studies with larger populations and longer follow-up periods are required.
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Affiliation(s)
- Mahboobeh sadat Hosseini
- Health Research Center, Life Style Institute, Baqiyatallah University of Medical Science, Tehran, Iran
| | - Zahra Razavi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Amir Houshang Ehsani
- Department of Dermatology, Razi Hospital, Tehran University of Medical Science, Tehran, Iran
| | - Alireza Firooz
- Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Science, Tehran, Iran
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Corica D, Pepe G, Currò M, Aversa T, Tropeano A, Ientile R, Wasniewska M. Methods to investigate advanced glycation end-product and their application in clinical practice. Methods 2021; 203:90-102. [DOI: 10.1016/j.ymeth.2021.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/01/2021] [Accepted: 12/16/2021] [Indexed: 12/15/2022] Open
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Foussard N, Larroumet A, Rigo M, Mohammedi K, Baillet-Blanco L, Poupon P, Monlun M, Lecocq M, Devouge AC, Ducos C, Liebart M, Battaglini Q, Rigalleau V. Skin autofluorescence predicts cancer in subjects with type 2 diabetes. BMJ Open Diabetes Res Care 2021; 9:9/1/e001312. [PMID: 33762312 PMCID: PMC7993362 DOI: 10.1136/bmjdrc-2020-001312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 02/11/2021] [Accepted: 02/26/2021] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Subjects with type 2 diabetes have an excess risk of cancer. The potential role of advanced glycation end products (AGEs) accumulated during long-term hyperglycemia in cancer development has been suggested by biological studies but clinical data are missing. AGEs can be estimated by measuring the skin autofluorescence. We searched whether the skin autofluorescence could predict new cancers in persons with type 2 diabetes. RESEARCH DESIGN AND METHODS From 2009 to 2015, we measured the skin autofluorescence of 413 subjects hospitalized for uncontrolled or complicated type 2 diabetes, without any history of cancer. The participants were followed for at least 1 year and the occurrences of new cancers were compared according to their initial skin autofluorescences. RESULTS The participants were mainly men (57.9%), with poorly controlled (HbA1c 72±14 mmol/mol or 8.7%±1.8%) and/or complicated type 2 diabetes. Their median skin autofluorescence was 2.6 (2.2-3.0) arbitrary units. Forty-five new cancer cases (10.9%) were registered during 4.8±2.3 years of follow-up: 75.6% of these subjects had skin autofluorescence higher than the median (χ2: p=0.001). By Cox regression analysis adjusted for age, gender, body mass index, history of smoking and renal parameters, skin autofluorescence >2.6 predicted a 2.57-fold higher risk of cancer (95% CI 1.28 to 5.19, p=0.008). This association remained significant after excluding the eight cancers that occurred in the 4 years after inclusion (OR 2.95, 95% CI 1.36 to 6.38, p=0.006). As a continuous variable, skin autofluorescence was also related to new cancers (OR 1.05, 95% CI 1.01 to 1.10, p=0.045). CONCLUSIONS Skin autofluorescence, a potential marker of glycemic memory, predicts the occurrence of cancer in subjects with type 2 diabetes. This relation provides a new clinical argument for the role of AGEs in cancer. Their estimation by measuring the skin autofluorescence may help select subjects with diabetes in cancer screening programs.
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Affiliation(s)
- Ninon Foussard
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Alice Larroumet
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Marine Rigo
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Kamel Mohammedi
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | | | - Pauline Poupon
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Marie Monlun
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Maxime Lecocq
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Anne-Claire Devouge
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Claire Ducos
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Marion Liebart
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Quentin Battaglini
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
| | - Vincent Rigalleau
- Nutrition-Diabetology, CHU de Bordeaux, Hôpital Haut-Lévêque, Pessac, France
- INSERM U1219-Bordeaux Population Health Research Center, Bordeaux, France
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Li Z, Wang F, Jia Y, Guo F, Chen S. The Relationship Between Hemoglobin Glycation Variation Index and Vitamin D in Type 2 Diabetes Mellitus. Diabetes Metab Syndr Obes 2021; 14:1937-1948. [PMID: 33958883 PMCID: PMC8096423 DOI: 10.2147/dmso.s310672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/07/2021] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the relationship between hemoglobin glycation variation index (HGI) and vitamin D in patients with type 2 diabetes mellitus (T2DM). MATERIALS AND METHODS This is a cross-sectional study that recruited 347 patients with T2DM. The subjects were divided into no vitamin D deficiency group (25(OH)D ≥20 ng/mL) and vitamin D deficiency group (25(OH)D < 20 ng/mL). HGI was calculated as the difference between the measured and predicted values of HbA1c using the linear relationship between HbA1c level and fasting plasma glucose levels. All study participants were divided into high HGI and low HGI groups using the median of HGI as the boundary. At last, the subjects were divided into male group and female group, and these groups were further subdivided into vitamin D deficiency group and no vitamin D deficiency group. RESULTS The levels of HGI were significantly higher in the vitamin D deficiency group compared with the no vitamin D deficiency group for all patients. The same was true for female patients but not for male patients. The prevalence of vitamin D deficiency in the high HGI group was higher than that in the low HGI group. The high HGI group had lower vitamin D levels compared to the low HGI group. Compared to the male group, the female group had lower vitamin D levels but higher HGI levels. A negative correlation existed between 25(OH) D and HGI in all subjects, as well as in the female-only subgroups. In the male-only subgroups, there was no correlation between them, and this positive correlation still existed after adjusting for other factors in multilinear regression analysis. CONCLUSION Our study showed for the first time that HGI is inversely associated with vitamin D in all patients with T2DM, and the correlation was also found in female patients, but not in male patients.
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Affiliation(s)
- Zelin Li
- Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People’s Republic of China
| | - Fei Wang
- Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People’s Republic of China
| | - Yujiao Jia
- Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People’s Republic of China
| | - Feiyue Guo
- Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- Department of Glandular Surgery, Hebei General Hospital, Shijiazhuang, Hebei, People’s Republic of China
| | - Shuchun Chen
- Graduate School of Hebei Medical University, Shijiazhuang, Hebei, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei, People’s Republic of China
- Hebei Key Laboratory of Metabolic Diseases, Hebei, People's Republic of China
- Correspondence: Shuchun Chen Department of Endocrinology, Hebei General Hospital, 348 Heping West Road, Shijiazhuang, Hebei, 050051, People’s Republic of ChinaTel +86 31185988406Fax +86 31185988406 Email
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Association of genetic variations in phosphatase and tensin homolog (PTEN) gene with polycystic ovary syndrome in South Indian women: a case control study. Arch Gynecol Obstet 2020; 302:1033-1040. [PMID: 32583210 DOI: 10.1007/s00404-020-05658-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/18/2020] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of the study was to investigate the association between gene phosphate and tensin homolog (PTEN) single nucleotide polymorphisms (SNPs) and risk of developing polycystic ovary syndrome (PCOS) in South Indian women. PTEN is one of the most important tumor suppressor genes that regulate cell proliferation, migration, and death. It is also involved in the maintenance of genome stability. PCOS is one of the most common endocrine disorders among women of reproductive age. It is a heterogeneous syndrome characterized by abnormal reproductive cycles, irregular ovulation, hormonal imbalance, hyperandrogenism, acne and hirsutism. RESEARCH QUESTION What is the association status of PTEN SNPs with PCOS? METHODS A total of 240 subjects were recruited in this case-control study comprising 110 patients with PCOS and 130 individuals without PCOS. All the subjects were of South Indian origin. The genotyping of PTEN SNPs (rs1903858 A/G, rs185262832G/A and rs10490920T/C) was carried out on DNA from subjects by polymerase chain reaction (PCR) and sequencing analysis. Haplotype frequencies for multiple loci and the standardized disequilibrium coefficient (D') for pairwise linkage disequilibrium (LD) were surveyed by Haploview Software. RESULTS Our results showed significant increase in the frequencies of rs1903858 A/G (P = 0.0016), rs185262832 G/A (P = 0.0122) and rs10490920 T/C (P = 0.0234) genotypes and alleles in cases compared to controls. CONCLUSION The PTEN (rs1903858A/G, rs185262832G/A and rs10490920T/C) gene polymorphisms may constitute an inheritable risk factor for PCOS in South Indian women.
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Kheirouri S, Alizadeh M. Vitamin D and advanced glycation end products and their receptors. Pharmacol Res 2020; 158:104879. [PMID: 32413483 DOI: 10.1016/j.phrs.2020.104879] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/27/2020] [Indexed: 01/02/2023]
Abstract
Advanced glycation end products (AGEs) are destructive molecules in the body that, at high levels, contribute to the progression of various chronic diseases. Numerous studies have suggested a modifying effect of vitamin D on AGEs and their receptors. This study sought to summarize the effects of vitamin D on AGEs and their receptors, including receptor for AGEs (RAGE) and soluble receptor for AGEs (sRAGE). The search method initially identified 484 articles; 331 remained after duplicate removal. Thirty-five articles were screened and identified as relevant to the study topic. After critical analysis, 27 articles were included in the final analysis. Vitamin D treatment may possibly be beneficial to reduce AGE levels and to augment sRAGE levels, particularly in vitamin D-deficient situations. Treatment with this vitamin may be effective in reducing RAGE expression in some disease conditions, but might be even harmful under normal conditions. The inhibitory or stimulatory effects of vitamin D on AGE receptors are mediated by various signaling pathways, MAPK/NF-κB, ADAM10/MMP9 and AT1R. In populations with chronic diseases and concomitant hypovitaminosis D, vitamin D supplementation can be used as a strategy to ameliorate AGE-mediated complications by modifying the AGE-RAGE and sRAGE systems.
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Affiliation(s)
- Sorayya Kheirouri
- Department of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Alizadeh
- Student Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Recent Advances and the Potential for Clinical Use of Autofluorescence Detection of Extra-Ophthalmic Tissues. Molecules 2020; 25:molecules25092095. [PMID: 32365790 PMCID: PMC7248908 DOI: 10.3390/molecules25092095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023] Open
Abstract
The autofluorescence (AF) characteristics of endogenous fluorophores allow the label-free assessment and visualization of cells and tissues of the human body. While AF imaging (AFI) is well-established in ophthalmology, its clinical applications are steadily expanding to other disciplines. This review summarizes clinical advances of AF techniques published during the past decade. A systematic search of the MEDLINE database and Cochrane Library databases was performed to identify clinical AF studies in extra-ophthalmic tissues. In total, 1097 articles were identified, of which 113 from internal medicine, surgery, oral medicine, and dermatology were reviewed. While comparable technological standards exist in diabetology and cardiology, in all other disciplines, comparability between studies is limited due to the number of differing AF techniques and non-standardized imaging and data analysis. Clear evidence was found for skin AF as a surrogate for blood glucose homeostasis or cardiovascular risk grading. In thyroid surgery, foremost, less experienced surgeons may benefit from the AF-guided intraoperative separation of parathyroid from thyroid tissue. There is a growing interest in AF techniques in clinical disciplines, and promising advances have been made during the past decade. However, further research and development are mandatory to overcome the existing limitations and to maximize the clinical benefits.
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Lee TW, Kao YH, Chen YJ, Chao TF, Lee TI. Therapeutic potential of vitamin D in AGE/RAGE-related cardiovascular diseases. Cell Mol Life Sci 2019; 76:4103-4115. [PMID: 31250032 PMCID: PMC11105755 DOI: 10.1007/s00018-019-03204-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 06/15/2019] [Accepted: 06/19/2019] [Indexed: 12/18/2022]
Abstract
Cardiovascular diseases (CVDs) are among the leading threats to human health. The advanced glycation end product (AGE) and receptor for AGE (RAGE) signaling pathway regulates the pathogenesis of CVDs, through its effects on arterial stiffness, atherosclerosis, mitochondrial dysfunction, oxidative stress, calcium homeostasis, and cytoskeletal function. Targeting the AGE/RAGE pathway is a potential therapeutic strategy for ameliorating CVDs. Vitamin D has several beneficial effects on the cardiovascular system. Experimental findings have shown that vitamin D regulates AGE/RAGE signaling and its downstream effects. This article provides a comprehensive review of the mechanistic insights into AGE/RAGE involvement in CVDs and the modulation of the AGE/RAGE signaling pathways by vitamin D.
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Affiliation(s)
- Ting-Wei Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, 111 Xinglong Road, Section 3 Wenshan District, Taipei, 11696, Taiwan
| | - Yu-Hsun Kao
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Cardiovascular Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tze-Fan Chao
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine and Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Ting-I Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, 111 Xinglong Road, Section 3 Wenshan District, Taipei, 11696, Taiwan.
- Department of General Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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Chen J, van der Duin D, Campos-Obando N, Ikram MA, Nijsten TEC, Uitterlinden AG, Zillikens MC. Serum 25-hydroxyvitamin D 3 is associated with advanced glycation end products (AGEs) measured as skin autofluorescence: The Rotterdam Study. Eur J Epidemiol 2018; 34:67-77. [PMID: 30255328 PMCID: PMC6325991 DOI: 10.1007/s10654-018-0444-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 09/14/2018] [Indexed: 12/13/2022]
Abstract
Advanced glycation end products (AGEs) accumulate in tissues with aging and may influence age-related diseases. They can be estimated non-invasively by skin autofluorescence (SAF) using the AGE Reader™. Serum 25-hydroxyvitamin D3 (25(OH)D3) may inhibit AGEs accumulation through anti-oxidative and anti-inflammatory properties but evidence in humans is scarce. The objective was to investigate the association between serum 25(OH)D3 and SAF in the population-based cohort study. Serum 25(OH)D3 and other covariates were measured at baseline. SAF was measured on average 11.5 years later. Known risk factors for AGE accumulation such as higher age, BMI, and coffee intake, male sex, smoking, diabetes, and decreased renal function were measured at baseline. Linear regression models were adopted to explore the association between 25(OH)D3 and SAF with adjustment for confounders. Interaction terms were tested to identify effect modification. The study was conducted in the general community. 2746 community-dwelling participants (age ≥ 45 years) from the Rotterdam Study were included. Serum 25(OH)D3 inversely associated with SAF and explained 1.5% of the variance (unstandardized B = - 0.002 (95% CI[- 0.003, - 0.002]), standardized β = - 0.125), independently of known risk factors and medication intake. The association was present in both diabetics (B = - 0.004 (95% CI[- 0.008, - 0.001]), β = - 0.192) and non-diabetics (B = - 0.002 (95% CI[- 0.003, - 0.002]), β = - 0.122), both sexes, both smokers and non-smokers and in each RS subcohort. Serum 25(OH)D3 concentration was significantly and inversely associated with SAF measured prospectively, also after adjustment for known risk factors for high SAF and the number of medication used, but the causal chain is yet to be explored in future studies.Clinical Trial Registry (1) Netherlands National Trial Register: Trial ID: NTR6831 ( http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=6831 ). (2) WHO International Clinical Trials Registry Platform: under shared catalogue number NTR6831 ( www.who.int/ictrp/network/primary/en/ ).
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Affiliation(s)
- Jinluan Chen
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - Daniel van der Duin
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - Natalia Campos-Obando
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - Mohammad Arfan Ikram
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - Tamar E C Nijsten
- Department of Dermatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - André G Uitterlinden
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands
| | - Maria Carola Zillikens
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, South Holland, The Netherlands.
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Ramsauer B, Graaff R, Sikole A, Trajceska L, Lundström S, Arsov S, Hadimeri H, Stegmayr B. Skin Autofluorescence, a Measure of Cumulative Metabolic Stress and Advanced Glycation End Products, Decreases During the Summer in Dialysis Patients. Artif Organs 2018; 43:173-180. [DOI: 10.1111/aor.13320] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 06/18/2018] [Accepted: 06/18/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Bernd Ramsauer
- Department of Nephrology Skaraborgs Hospital Skövde Sweden
- Department of Public Health and Clinical Medicine Umea University Umea Sweden
| | - Reindert Graaff
- Department of Endocrinology University Medical Center Groningen and University of Groningen Groningen The Netherlands
| | | | | | - Sara Lundström
- Department of Public Health and Clinical Medicine Umea University Umea Sweden
| | - Stefan Arsov
- Institute for Epidemiology and Biostatistics University Sts Cyril and Methodius Skopje Republic of Macedonia
| | | | - Bernd Stegmayr
- Department of Public Health and Clinical Medicine Umea University Umea Sweden
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Siddamalla S, Reddy TV, Govatati S, Erram N, Deenadayal M, Shivaji S, Bhanoori M. Vitamin D receptor gene polymorphisms and risk of polycystic ovary syndrome in South Indian women. Gynecol Endocrinol 2018; 34:161-165. [PMID: 28868946 DOI: 10.1080/09513590.2017.1371128] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder of reproductive age women. Emerging evidence suggests that Vitamin D Receptor (VDR) might be a causal factor for characteristics associated with PCOS such as obesity and type 2 diabetes. Present study investigated association between VDR gene BsmI A/G (rs1544410), ApaI A/C (rs7975232) and TaqI T/C (rs731236) single nucleotide polymorphisms and PCOS risk in South Indian women. Genotyping of VDR gene SNPs was carried out in PCOS patients (n = 95) and controls (n = 130) by PCR-RFLP method and confirmed by sequencing analysis. Haplotype frequencies for multiple loci and the standardized disequilibrium coefficient (D') for pairwise linkage disequilibrium (LD) were assessed by Haploview software. Results showed significantly increased frequencies of BsmI G/G (p = .0197), ApaI C/C (p = .048), TaqI C/C (p = .044) genotypes and BsmI G (p = .0181), ApaI C (p = .0092), TaqI C (p = .0066) alleles in patients compared to controls. In addition, the frequency of the 'BsmI G, ApaI C, TaqI C' haplotype was also significantly elevated in patients (p = .0087). In conclusion, the VDR gene BsmI A/G ApaI A/C TaqI T/C and haplotype may constitute an inheritable risk factor for PCOS in South Indian women.
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Affiliation(s)
- Swapna Siddamalla
- a Department of Biochemistry , Osmania University , Hyderabad , India
| | - Tumu Venkat Reddy
- a Department of Biochemistry , Osmania University , Hyderabad , India
| | - Suresh Govatati
- a Department of Biochemistry , Osmania University , Hyderabad , India
| | - Nagendram Erram
- a Department of Biochemistry , Osmania University , Hyderabad , India
| | - Mamata Deenadayal
- b Infertility Institute and Research Centre (IIRC) , Secunderabad , India
| | - Sisinthy Shivaji
- c Centre for Cellular and Molecular Biology (CCMB) , Hyderabad , India
| | - Manjula Bhanoori
- a Department of Biochemistry , Osmania University , Hyderabad , India
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Ahmad MS, Kimhofer T, Ahmad S, AlAma MN, Mosli HH, Hindawi SI, Mook-Kanamori DO, Šebeková K, Damanhouri ZA, Holmes E. Ethnicity and skin autofluorescence-based risk-engines for cardiovascular disease and diabetes mellitus. PLoS One 2017; 12:e0185175. [PMID: 28931094 PMCID: PMC5607192 DOI: 10.1371/journal.pone.0185175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 09/07/2017] [Indexed: 02/03/2023] Open
Abstract
Skin auto fluorescence (SAF) is used as a proxy for the accumulation of advanced glycation end products (AGEs) and has been proposed to stratify patients into cardiovascular disease (CVD) and diabetes mellitus (DM) risk groups. This study evaluates the effects of seven different ethnicities (Arab, Central-East African, Eastern Mediterranean, European, North African, South Asian and Southeast Asian) and gender on SAF as well as validating SAF assessment as a risk estimation tool for CVD and DM in an Arabian cohort. SAF data from self-reported healthy 2,780 individuals, collated from three independent studies, has been linear modelled using age and gender as a covariate. A cross-study harmonized effect size (Cohens’d) is provided for each ethnicity. Furthermore, new data has been collected from a clinically well-defined patient group of 235 individuals, to evaluate SAF as a clinical tool for DM and CVD-risk estimation in an Arab cohort. In an Arab population, SAF-based CVD and/or DM risk-estimation can be improved by referencing to ethnicity and gender-specific SAF values. Highest SAF values were observed for the North African population, followed by East Mediterranean, Arab, South Asian and European populations. The South Asian population had a slightly steeper slope in SAF values with age compared to other ethnic groups. All ethnic groups except Europeans showed a significant gender effect. When compared with a European group, effect size was highest for Eastern Mediterranean group and lowest for South Asian group. The Central-East African and Southeast Asian ethnicity matched closest to the Arab and Eastern Mediterranean ethnicities, respectively. Ethnic and gender-specific data improves performance in SAF-based CVD and DM risk estimation. The provided harmonized effect size allows a direct comparison of SAF in different ethnicities. For the first time, gender differences in SAF are described for North African and East Mediterranean populations.
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Affiliation(s)
- Muhammad Saeed Ahmad
- Drug Metabolism Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, United Kingdom
- * E-mail: (MSA); (TK)
| | - Torben Kimhofer
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, United Kingdom
- * E-mail: (MSA); (TK)
| | - Sultan Ahmad
- Drug Metabolism Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed Nabil AlAma
- Cardiology Unit, Department of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Hala Hisham Mosli
- Department of Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Salwa Ibrahim Hindawi
- Department of Haematology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dennis O. Mook-Kanamori
- Department of Primary Care/Public Health and Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Katarína Šebeková
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Zoheir Abdullah Damanhouri
- Drug Metabolism Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Elaine Holmes
- Drug Metabolism Unit, King Fahad Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Biomolecular Medicine, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, South Kensington, London, United Kingdom
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14
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Yang Y, Zhao C, Liang J, Yu M, Qu X. Effect of Dipeptidyl Peptidase-4 Inhibitors on Bone Metabolism and the Possible Underlying Mechanisms. Front Pharmacol 2017; 8:487. [PMID: 28790917 PMCID: PMC5524773 DOI: 10.3389/fphar.2017.00487] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 07/07/2017] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus has been demonstrated to be closely associated with osteoporosis. Accordingly, hypoglycemic therapy is considered effective in treating metabolic bone disease. Recently, the effects of dipeptidyl peptidase-4 (DPP-4) inhibitors, a new type of antidiabetic drug, on bone metabolism have been widely studied. This review mainly describes the effects of DPP-4 inhibitors on bone metabolism, including their effects on bone mineral density, bone quality, and fracture risk. In addition, the potential underlying mechanisms are discussed. Based on the current progress in this research field, DPP-4 inhibitors have been proved to reduce fracture risk. In addition, sitagliptin, a strong and highly selective DPP-4 inhibitor, showed its beneficial effects on bone metabolism by improving bone mineral density, bone quality, and bone markers. With regard to the potential underlying mechanisms, DPP-4 inhibitors may promote bone formation and reduce bone resorption through DPP-4 substrates and DPP-4-related energy metabolism. Vitamin D and other related signaling pathways also play a role in affecting bone metabolism. Although these assumptions are controversial, they provide a translational pharmacology approach for the clinical use of DPP-4 inhibitors in the treatment of metabolic diseases. Prior to the use of these drugs in clinic, further studies should be conducted to determine the appropriate type of DPP-4 inhibitor, the people who would benefit the most from this therapy, appropriate dose and duration, and the effects of the treatment.
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Affiliation(s)
- Yinqiu Yang
- Department of Endocrinology, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Chenhe Zhao
- Department of Endocrinology, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Jing Liang
- Department of Endocrinology, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Mingxiang Yu
- Department of Endocrinology, Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Xinhua Qu
- Department of Orthopedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of MedicineShanghai, China
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15
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Wang CC, Wang YC, Wang GJ, Shen MY, Chang YL, Liou SY, Chen HC, Lee AS, Chang KC, Chen WY, Chang CT. Skin autofluorescence is associated with inappropriate left ventricular mass and diastolic dysfunction in subjects at risk for cardiovascular disease. Cardiovasc Diabetol 2017; 16:15. [PMID: 28122545 PMCID: PMC5267439 DOI: 10.1186/s12933-017-0495-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/11/2017] [Indexed: 01/20/2023] Open
Abstract
Background Enhanced advanced glycation end products deposition within myocardial tissue may cause diastolic dysfunction. However, whether this is related to left ventricular hypertrophy or inappropriate left ventricular mass remains unclear. Methods We prospectively enrolled 139 subjects at risk for cardiovascular diseases. We used echocardiography for measurements of left ventricular mass and cardiac systolic and diastolic functional parameters. An advanced glycation end product reader was applied for measurements of skin autofluorescence values. Comparisons of left ventricular mass and echocardiographic parameters between the higher and lower skin autofluorescence groups were analyzed. Results Compared with the lower skin autofluorescence group, left ventricular mass index and the ratio of observed left ventricular mass/predicted left ventricular mass (oLVM/pLVM) was significantly higher in the higher skin autofluorescence group (61.22 ± 17.76 vs. 47.72 ± 11.62, P < 0.01, 1.62 ± 0.38 vs. 1.21 ± 0.21, P < 0.01). After adjustment for potential confounding factors, skin autofluorescence was an independent factor for left ventricular mass index (β = 0.32, P < 0.01) and the ratio of oLVM/pLVM (β = 0.41, P < 0.01). Skin autofluorescence ≥2.35 arbitrary unit predicted left ventricular hypertrophy at a sensitivity of 58.8%, and a specificity of 73.0% (P < 0.01). Skin autofluorescence ≥2.25 arbitrary unit predicted inappropriate left ventricular mass at a sensitivity of 71.1%, and a specificity of 83.9% (P < 0.01). Skin autofluorescence was positively correlated with E/E′, an indicator for diastolic dysfunction (r = 0.21, P = 0.01). Conclusions Skin autofluorescence is a useful tool for detecting left ventricular hypertrophy, inappropriate left ventricular mass and diastolic dysfunction. Electronic supplementary material The online version of this article (doi:10.1186/s12933-017-0495-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chun-Cheng Wang
- Graduate Institute of Clinical Medical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan.,Division of Cardiology, Department of Internal Medicine, Taichung Tzuchi Hospital, The Buddhist Tzuchi Medical Foundation, Taichung, Taiwan.,Division of Cardiovascular Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yao-Chang Wang
- Division of Cardiothoracic Surgery, Chang Gung Memorial Hospital Keelung Branch, Keelung, Taiwan
| | - Guei-Jane Wang
- Graduate Institute of Clinical Medical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan.,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Ming-Yi Shen
- Graduate Institute of Clinical Medical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan
| | - Yen-Lin Chang
- Department of Biomedical Engineering, Chun Yuan Christian University, Taoyuan, Taiwan
| | - Show-Yih Liou
- Formosan Blood Purification Foundation, Taipei, Taiwan
| | - Hung-Chih Chen
- Division of Nephrology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - An-Sheng Lee
- Department of Medicine, Mackay Medical College, New Taipei, Taiwan
| | - Kuan-Cheng Chang
- Graduate Institute of Clinical Medical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan.,Division of Cardiovascular Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,College of Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan.,Cardiovascular Research Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Yu Chen
- Graduate Institute of Basic Medical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan
| | - Chiz-Tzung Chang
- Division of Nephrology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan. .,College of Medicine, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 40402, Taiwan. .,Cardiovascular Research Laboratory, China Medical University Hospital, Taichung, Taiwan.
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16
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Barchetta I, Cimini FA, Bloise D, Cavallo MG. Dipeptidyl peptidase-4 inhibitors and bone metabolism: is vitamin D the link? Acta Diabetol 2016; 53:839-44. [PMID: 27379733 DOI: 10.1007/s00592-016-0882-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 06/27/2016] [Indexed: 01/23/2023]
Abstract
AIMS Dipeptidyl peptidase-4 inhibitors (DPP4-Is) represent a promising class of agents for type 2 diabetes treatment. Experimental models and clinical studies have reported positive effects of DPP4-Is on bone; however, how DPP4-Is positively impact bone homeostasis in humans remains an unanswered question. Aim of this study investigated the relationship between treatment with DPP4-Is and vitamin D balance in patients with type 2 diabetes. METHODS This is a cross-sectional study. A total of 295 consecutive individuals with type 2 diabetes referring to our diabetes outpatient clinics were enrolled; among them, 53 % were in treatment with DPP4-Is. Metabolic profile and routine biochemistry were assessed by standard methods; serum 25(OH) vitamin D levels [25(OH)D] were measured by colorimetric method (LAISON, DiaSorin). RESULTS DPP4-Is-treated participants had significantly higher serum 25(OH)D levels then those undertaking other antidiabetic therapies (18.4 ± 10.7 vs. 14.9 ± 8.6 ng/ml, p = 0.004); this association persisted after adjusting for all major confounders. Increased 25(OH)D concentrations also correlated with the duration of DPP4-Is treatment and with a stronger DPP4 inhibitory activity. CONCLUSIONS DPP4-Is treatment is associated with improved vitamin D balance in people with type 2 diabetes; our findings suggest that vitamin D may underlie the link between DPP4-Is and bone metabolism.
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Affiliation(s)
- I Barchetta
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - F A Cimini
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - D Bloise
- Diabetes Unit, San Giuseppe Hospital of Marino, Rome, Italy
| | - M G Cavallo
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy.
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