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Mendoza LC, Tashkova M, Corcoy R, Dornhorst A. Pregnancy induces longitudinal changes in urinary C-peptide creatinine ratio in women with type 1 diabetes. Diabet Med 2024; 41:e15154. [PMID: 37227744 DOI: 10.1111/dme.15154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/15/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
AIMS Changes in maternal serum C-peptide have been described during pregnancy in women with Type 1 diabetes. We aimed to determine whether in these women, C-peptide, as measured by the urinary C-peptide creatinine ratio (UCPCR), display changes during the course of pregnancy and in the postpartum period. METHODS In this longitudinal study including 26 women, UCPCR was measured in the first, second, and third trimester of pregnancy, and postpartum, using a high sensitivity two-step chemiluminescent microparticle immunoassay. RESULTS UCPCR was detectable in 7/26 (26.9%) participants in the first trimester, 10/26 (38.4%) in the second trimester, and 18/26 (69.2%) in the third trimester. Changes in UCPCR concentrations were observed throughout pregnancy, significantly increasing from first to third trimester. UCPCR concentration in the three trimesters was associated with a shorter duration of diabetes and in the third trimester also with first trimester UCPCR. CONCLUSION UCPCR detects longitudinal changes during pregnancy in women with type 1 diabetes mellitus, more marked in those with shorter diabetes duration.
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Affiliation(s)
- Lilian C Mendoza
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- CIBER Bioengineering, Biomaterials and Nanotechnology, Instituto de Salud Carlos III, Madrid, Spain
| | - Martina Tashkova
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
| | - Rosa Corcoy
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- CIBER Bioengineering, Biomaterials and Nanotechnology, Instituto de Salud Carlos III, Madrid, Spain
| | - Anne Dornhorst
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK
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Reintar S, Pöchhacker M, Obermayer A, Eberhard K, Zirlik A, Verheyen N, von Lewinski D, Scherr D, Hutz B, Haudum CW, Pieber TR, Sourij H, Obermayer-Pietsch B. Urinary C-Peptide to Creatinine Ratio (UCPCR) as Indicator for Metabolic Risk in Apparently Healthy Adults-A BioPersMed Cohort Study. Nutrients 2023; 15:2073. [PMID: 37432211 DOI: 10.3390/nu15092073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 07/12/2023] Open
Abstract
Background: C-peptide is produced in equimolar amounts with insulin from pancreatic beta cells, and thus is a fundamental biomarker for beta cell function. A non-invasive urinary C-peptide-to-creatinine ratio (UCPCR) has attracted attention as a biomarker for metabolic conditions. However, the UCPCR as an indicative risk predictor for prediabetes is still being investigated. Methods: We aimed to characterize UCPCRs in healthy people using American Diabetes Association (ADA) criteria and to evaluate their metabolic outcomes over time. A total of 1022 participants of the Biomarkers in Personalized Medicine cohort (BioPersMed) were screened for this study. Totals of 317 healthy with normal glucose metabolism, 87 prediabetic, and 43 diabetic subjects were included. Results: Prediabetic participants had a significantly higher UCPCR median value than healthy participants (p < 0.05). Dysglycaemia of healthy baseline participants was measured twice over 4.5 ± 0.9 years; 25% and 30% were detected with prediabetes during follow-ups, predicted by UCPCR both for the first (p < 0.05) and the second visit (p < 0.05), respectively. This is in good agreement with the negative predictive UCPCR value of 60.2% based on logistic regression. UCPCR levels were equal in both sexes. Conclusion: UCPCR measurements provide an indicative approach for metabolic risk, representing a potential use for prevention and monitoring of impaired glucose metabolism.
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Affiliation(s)
- Sharmaine Reintar
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Magdalena Pöchhacker
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Anna Obermayer
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Katharina Eberhard
- Center for Medical Research, Core Facility Computational Bioanalytics, Medical University of Graz, 8010 Graz, Austria
| | - Andreas Zirlik
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria
| | - Nicolas Verheyen
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria
| | - Dirk von Lewinski
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria
| | - Daniel Scherr
- Department of Internal Medicine, Division of Cardiology, Medical University of Graz, 8036 Graz, Austria
| | - Barbara Hutz
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Christoph W Haudum
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Thomas R Pieber
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Harald Sourij
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
| | - Barbara Obermayer-Pietsch
- Department of Internal Medicine, Division of Endocrinology and Diabetology and Endocrinology Lab Platform, Medical University of Graz, 8036 Graz, Austria
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Espes D, Magnusson L, Caballero-Corbalan J, Schwarcz E, Casas R, Carlsson PO. Pregnancy induces pancreatic insulin secretion in women with long-standing type 1 diabetes. BMJ Open Diabetes Res Care 2022; 10:10/6/e002948. [PMID: 36351678 PMCID: PMC9644305 DOI: 10.1136/bmjdrc-2022-002948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/01/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Pregnancy entails both pancreatic adaptations with increasing β-cell mass and immunological alterations in healthy women. In this study, we have examined the effects of pregnancy on β-cell function and immunological processes in long-standing type 1 diabetes (L-T1D). RESEARCH DESIGN AND METHODS Fasting and stimulated C-peptide were measured after an oral glucose tolerance test in pregnant women with L-T1D (n=17) during the first trimester, third trimester, and 5-8 weeks post partum. Two 92-plex Olink panels were used to measure proteins in plasma. Non-pregnant women with L-T1D (n=30) were included for comparison. RESULTS Fasting C-peptide was detected to a higher degree in women with L-T1D during gestation and after parturition (first trimester: 64.7%, third trimester: 76.5%, and post partum: 64.7% vs 26.7% in non-pregnant women). Also, total insulin secretion and peak C-peptide increased during pregnancy. The plasma protein levels in pregnant women with L-T1D was dynamic, but few analytes were functionally related. Specifically, peripheral levels of prolactin (PRL), prokineticin (PROK)-1, and glucagon (GCG) were elevated during gestation whereas levels of proteins related to leukocyte migration (CCL11), T cell activation (CD28), and antigen presentation (such as CD83) were reduced. CONCLUSIONS In summary, we have found that some C-peptide secretion, that is, an indirect measurement of endogenous insulin production, is regained in women with L-T1D during pregnancy, which might be attributed to elevated peripheral levels of PRL, PROK-1, or GCG.
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Affiliation(s)
- Daniel Espes
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Louise Magnusson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, Linkoping, Sweden
| | | | - Erik Schwarcz
- Department of Internal Medicine, Örebro University Hospital, Orebro, Sweden
| | - Rosaura Casas
- Department of Biomedical and Clinical Sciences, Linköping University, Linkoping, Sweden
| | - Per-Ola Carlsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
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Trindade F, Barros AS, Silva J, Vlahou A, Falcão-Pires I, Guedes S, Vitorino C, Ferreira R, Leite-Moreira A, Amado F, Vitorino R. Mining the Biomarker Potential of the Urine Peptidome: From Amino Acids Properties to Proteases. Int J Mol Sci 2021; 22:5940. [PMID: 34073067 PMCID: PMC8197949 DOI: 10.3390/ijms22115940] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/11/2022] Open
Abstract
Native biofluid peptides offer important information about diseases, holding promise as biomarkers. Particularly, the non-invasive nature of urine sampling, and its high peptide concentration, make urine peptidomics a useful strategy to study the pathogenesis of renal conditions. Moreover, the high number of detectable peptides as well as their specificity set the ground for the expansion of urine peptidomics to the identification of surrogate biomarkers for extra-renal diseases. Peptidomics further allows the prediction of proteases (degradomics), frequently dysregulated in disease, providing a complimentary source of information on disease pathogenesis and biomarkers. Then, what does urine peptidomics tell us so far? In this paper, we appraise the value of urine peptidomics in biomarker research through a comprehensive analysis of all datasets available to date. We have mined > 50 papers, addressing > 30 different conditions, comprising > 4700 unique peptides. Bioinformatic tools were used to reanalyze peptide profiles aiming at identifying disease fingerprints, to uncover hidden disease-specific peptides physicochemical properties and to predict the most active proteases associated with their generation. The molecular patterns found in this study may be further validated in the future as disease biomarker not only for kidney diseases but also for extra-renal conditions, as a step forward towards the implementation of a paradigm of predictive, preventive and personalized (3P) medicine.
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Affiliation(s)
- Fábio Trindade
- UnIC—Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (A.S.B.); (I.F.-P.); (A.L.-M.)
| | - António S. Barros
- UnIC—Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (A.S.B.); (I.F.-P.); (A.L.-M.)
| | - Jéssica Silva
- iBiMED—Department of Medical Sciences, Institute of Biomedicine, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Antonia Vlahou
- Biotechnology Division, Biomedical Research Foundation of the Academy of Athens, 115 27 Athens, Greece;
| | - Inês Falcão-Pires
- UnIC—Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (A.S.B.); (I.F.-P.); (A.L.-M.)
| | - Sofia Guedes
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal; (S.G.); (R.F.); (F.A.)
| | - Carla Vitorino
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal;
- Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
- Center for Neurosciences and Cell Biology (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Rita Ferreira
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal; (S.G.); (R.F.); (F.A.)
| | - Adelino Leite-Moreira
- UnIC—Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (A.S.B.); (I.F.-P.); (A.L.-M.)
| | - Francisco Amado
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal; (S.G.); (R.F.); (F.A.)
| | - Rui Vitorino
- UnIC—Cardiovascular Research and Development Centre, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (A.S.B.); (I.F.-P.); (A.L.-M.)
- iBiMED—Department of Medical Sciences, Institute of Biomedicine, University of Aveiro, 3810-193 Aveiro, Portugal;
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal; (S.G.); (R.F.); (F.A.)
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Nalla A, Ringholm L, Sørensen SN, Damm P, Mathiesen ER, Nielsen JH. Possible mechanisms involved in improved beta cell function in pregnant women with type 1 diabetes. Heliyon 2020; 6:e04569. [PMID: 32904239 PMCID: PMC7452446 DOI: 10.1016/j.heliyon.2020.e04569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 06/11/2020] [Accepted: 07/23/2020] [Indexed: 12/31/2022] Open
Abstract
Pregnancy is known to be associated with an increased demand for insulin that is normally compensated by an increased beta cell mass and insulin secretion. Recent studies have suggested enhanced beta cell function during pregnancy in women with type 1 diabetes (T1D). To explore the possible mechanisms behind enhanced beta cell function during pregnancy in women with T1D we investigated the impact of circulating factors in serum from nine women from each group of pregnant women with and without T1D, after pregnancy and non-diabetic non-pregnant women on rat islet cell proliferation and apoptosis, and on T-lymphocyte activation. In addition, circulating levels of pancreatic hormones and selected cytokines and adipokines were measured. Rat islet cell proliferation was higher in serum from pregnant women with T1D (p < 0.05) compared to T1D women after pregnancy. Apoptosis in INS-1E cell was lower (p < 0.05) in serum from pregnant women with T1D compared to T1D women after pregnancy. T-lymphocyte cell (Jurkat) proliferation was reduced by serum from pregnant women without T1D only (p < 0.05). Higher C-peptide levels and lower levels of ghrelin, IL-6, MCP-1, IL-8 and adipsin were observed in pregnant women with T1D compared to T1D women after pregnancy. In conclusion, the improved beta cell function in women with T1D during pregnancy may be due to lower levels of proinflammatory cytokines and/or higher levels of pregnancy-associated growth factors.
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Affiliation(s)
- Amarnadh Nalla
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- Corresponding author.
| | - Lene Ringholm
- Center for Pregnant Women with Diabetes, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- Departments of Endocrinology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Susanne Nørskov Sørensen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- Departments of Obstetrics, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Elisabeth Reinhardt Mathiesen
- Center for Pregnant Women with Diabetes, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
- Departments of Endocrinology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Jens Høiriis Nielsen
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Markoska A, Mendoza LC, Valaiyapathi R, Thorn C, Dornhorst A. Insulin sensitivity assessed using urine C peptide creatinine ratio (UCPCR) in pregnancy: cross-sectional analysis of an English multiethnic cohort. BMJ Open 2018; 8:e020029. [PMID: 29724737 PMCID: PMC5942436 DOI: 10.1136/bmjopen-2017-020029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIMS To assess urinary C peptide creatinine ratio (UCPCR) used in a modified Matsuda equation to measure insulin sensitivity (IS) in pregnancy. RESEARCH AND DESIGN METHODS In this cross-sectional study, two IS measurements were calculated in 73 pregnant women at ~28 weeks of gestation by two separate methods using modified Matsuda equations. The first using the 0 and 120 min serum C peptide concentration during a 75 g oral glucose tolerance test (OGTT) and the second using the 0 and 120 min UCPCR values. The calculated IS measurements from the two methodologies were evaluated using Person's test and linear regression analysis. The relationship between ISOGTT UCPCR and the fasting second void UCPCR and 120 min UCPCR was assessed using Pearson correlation and linear regression analysis after logarithmic transformation of the variables. Statistical analysis was performed using SPSS V.22. RESULTS The IS measured using serum C peptide (ISOGTTc-pep) in the modified Matsuda equation correlated with the IS measurement using serum UCPCR (ISOGTT-UCPCR) (r 0.704, p<0.0001). A strong correlation was found between the ISOGTT-UCPCR and the fasting UCPCR (r -0.916, p<0.0001), displaying a hyperbolic relationship. CONCLUSION The UCPCR provides a practical methodology to assess IS and β-cell function in pregnancy.
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Affiliation(s)
- Ankica Markoska
- Department of Investigative Medicine, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - Lilian C Mendoza
- Department of Investigative Medicine, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - Rajalakshmi Valaiyapathi
- Department of Investigative Medicine, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - Chloe Thorn
- Department of Investigative Medicine, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - Anne Dornhorst
- Department of Investigative Medicine, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, UK
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