Jacqueline M Ratter-Rieck, Michael Roden, Christian Herder
Climate change will be a major challenge for the world's health systems in the coming decades. Elevated temperatures and increasing frequencies of heat waves, wildfires, heavy precipitation and other weather extremes can affect health in many ways, especially if chronic diseases are already present. Impaired responses to heat stress, including compromised vasodilation and sweating, diabetes-related comorbidities, insulin resistance and chronic low-grade inflammation make people with diabetes particularly vulnerable to environmental risk factors, such as extreme weather events and air pollution...
March 25, 2023: Diabetologia
Malin Bélteky, Patricia L Milletich, Angelica P Ahrens, Eric W Triplett, Johnny Ludvigsson
AIMS/HYPOTHESIS: While autoantibodies are traditional markers for type 1 diabetes development, we identified gut microbial biomarkers in 1-year-old infants associated with future type 1 diabetes up to 20 years before diagnosis. METHODS: Infants enrolled in the longitudinal general population cohort All Babies In Southeast Sweden (ABIS) provided a stool sample at a mean age of 12.5 months. Samples (future type 1 diabetes, n=16; healthy controls, n=268) were subjected to 16S ribosomal RNA (rRNA) sequencing and quantitative PCR...
March 25, 2023: Diabetologia
Petr Heneberg
No abstract text is available yet for this article.
March 23, 2023: Diabetologia
Yu Hatano, Lisa B VanWagner, Mercedes R Carnethon, Michael P Bancks, April P Carson, Donald M Lloyd-Jones, Truls Østbye, Anthony J Viera, Yuichiro Yano
AIMS/HYPOTHESIS: Type 2 diabetes and non-alcoholic fatty liver disease (NAFLD) are prevalent diseases of metabolic origin. We examined the association between NAFLD and the development of type 2 diabetes among non-Asian adults, and whether the association differs by race. METHODS: We analysed data from the Coronary Artery Risk Development in Young Adults (CARDIA) study, a population-based prospective cohort study. Participants underwent non-contrast abdominal computed tomography (CT) at baseline (2010-2011) and assessment of glucose measures at the follow-up exam (2015-2016)...
March 21, 2023: Diabetologia
Melanie Lloyd, Jedidiah Morton, Helena Teede, Clara Marquina, Dina Abushanab, Dianna J Magliano, Emily J Callander, Zanfina Ademi
AIMS/HYPOTHESIS: The aim of this study was to determine the long-term cost-effectiveness and return on investment of implementing a structured lifestyle intervention to reduce excessive gestational weight gain and associated incidence of gestational diabetes mellitus (GDM) and type 2 diabetes mellitus. METHODS: A decision-analytic Markov model was used to compare the health and cost-effectiveness outcomes for (1) a structured lifestyle intervention during pregnancy to prevent GDM and subsequent type 2 diabetes; and (2) current usual antenatal care...
March 18, 2023: Diabetologia
Denise Türk, Nina Scherer, Dominik Selzer, Christiane Dings, Nina Hanke, Robert Dallmann, Matthias Schwab, Peter Timmins, Valerie Nock, Thorsten Lehr
AIMS/HYPOTHESIS: The objective was to investigate if metformin pharmacokinetics is modulated by time-of-day in humans using empirical and mechanistic pharmacokinetic modelling techniques on a large clinical dataset. This study also aimed to generate and test hypotheses on the underlying mechanisms, including evidence for chronotype-dependent interindividual differences in metformin plasma and efficacy-related tissue concentrations. METHODS: A large clinical dataset consisting of individual metformin plasma and urine measurements was analysed using a newly developed empirical pharmacokinetic model...
March 17, 2023: Diabetologia
(no author information available yet)
No abstract text is available yet for this article.
March 16, 2023: Diabetologia
Xinzhi Li, Ying Yang, Zhenzhi Li, Yuqin Wang, Jingting Qiao, Zheng Chen
AIMS/HYPOTHESIS: N6 -methyladenosine (m6 A) mRNA methylation and m6 A-related proteins (methyltransferase-like 3 [METTL3], methyltransferase-like 14 [METTL14] and YTH domain containing 1 [YTHDC1]) have been shown to regulate islet beta cell function and the pathogenesis of diabetes. However, whether Wilms' tumour 1-associating protein (WTAP), a key regulator of the m6 A RNA methyltransferase complex, regulates islet beta cell failure during pathogenesis of diabetes is largely unknown...
March 15, 2023: Diabetologia
Evan L Reynolds, Maya Watanabe, Mousumi Banerjee, Ericka Chant, Emily Villegas-Umana, Melissa A Elafros, Thomas W Gardner, Rodica Pop-Busui, Subramaniam Pennathur, Eva L Feldman, Brian C Callaghan
AIMS/HYPOTHESIS: The aim of this study was to determine the effect of bariatric surgery on diabetes complications in individuals with class II/III obesity (BMI > 35 kg/m2 ). METHODS: We performed a prospective cohort study of participants with obesity who underwent bariatric surgery. At baseline and 2 years following surgery, participants underwent metabolic phenotyping and diabetes complication assessments. The primary outcomes for peripheral neuropathy (PN) were a change in intra-epidermal nerve fibre density (IENFD, units = fibres/mm) at the distal leg and proximal thigh, the primary outcome for cardiovascular autonomic neuropathy (CAN) was a change in the expiration/inspiration (E/I) ratio, and the primary outcome for retinopathy was a change in the mean deviation on frequency doubling technology testing...
March 14, 2023: Diabetologia
Yang Xiao, Yanfei Wang, Jiyoon Ryu, Wei Liu, Hailan Zou, Rong Zhang, Yin Yan, Zhe Dai, Deling Zhang, Lu-Zhe Sun, Feng Liu, Zhiguang Zhou, Lily Q Dong
AIMS/HYPOTHESIS: Glucagon-stimulated hepatic gluconeogenesis contributes to endogenous glucose production during fasting. Recent studies suggest that TGF-β is able to promote hepatic gluconeogenesis in mice. However, the physiological relevance of serum TGF-β levels to human glucose metabolism and the mechanism by which TGF-β enhances gluconeogenesis remain largely unknown. As enhanced gluconeogenesis is a signature feature of type 2 diabetes, elucidating the molecular mechanisms underlying TGF-β-promoted hepatic gluconeogenesis would allow us to better understand the process of normal glucose production and the pathophysiology of this process in type 2 diabetes...
March 14, 2023: Diabetologia
Ben Vanderkruk, Nina Maeshima, Daniel J Pasula, Meilin An, Cassandra L McDonald, Priya Suresh, Dan S Luciani, Francis C Lynn, Brad G Hoffman
AIMS/HYPOTHESIS: Beta cells control glucose homeostasis via regulated production and secretion of insulin. This function arises from a highly specialised gene expression programme that is established during development and then sustained, with limited flexibility, in terminally differentiated cells. Dysregulation of this programme is seen in type 2 diabetes but mechanisms that preserve gene expression or underlie its dysregulation in mature cells are not well resolved. This study investigated whether methylation of histone H3 lysine 4 (H3K4), a marker of gene promoters with unresolved functional importance, is necessary for the maintenance of mature beta cell function...
March 13, 2023: Diabetologia
Najda Rudman, Simranjeet Kaur, Vesna Simunović, Domagoj Kifer, Dinko Šoić, Toma Keser, Tamara Štambuk, Lucija Klarić, Flemming Pociot, Grant Morahan, Olga Gornik
AIMS/HYPOTHESIS: We previously demonstrated that N-glycosylation of plasma proteins and IgGs is different in children with recent-onset type 1 diabetes compared with their healthy siblings. To search for genetic variants contributing to these changes, we undertook a genetic association study of the plasma protein and IgG N-glycome in type 1 diabetes. METHODS: A total of 1105 recent-onset type 1 diabetes patients from the Danish Registry of Childhood and Adolescent Diabetes were genotyped at 183,546 genetic markers, testing these for genetic association with variable levels of 24 IgG and 39 plasma protein N-glycan traits...
March 13, 2023: Diabetologia
Jie Zheng, Tom R Gaunt, Min Xu, George Davey Smith, Yufang Bi
No abstract text is available yet for this article.
March 10, 2023: Diabetologia
Alexandra Kautzky-Willer, Michael Leutner, Jürgen Harreiter
The prevalence of type 2 diabetes mellitus is increasing in both sexes, but men are usually diagnosed at a younger age and lower body fat mass than women. Worldwide, an estimated 17.7 million more men than women have diabetes mellitus. Women appear to bear a greater risk factor burden at the time of their type 2 diabetes diagnosis, especially obesity. Moreover, psychosocial stress might play a more prominent role in diabetes risk in women. Across their lifespan, women experience greater hormone fluctuations and body changes due to reproductive factors than men...
March 10, 2023: Diabetologia
Martin B Blond, Kristine Færch, Christian Herder, Dan Ziegler, Coen D A Stehouwer
The current definition of prediabetes is controversial and subject to continuous debate. Nonetheless, prediabetes is a risk factor for type 2 diabetes, is highly prevalent and is associated with diabetic complications and mortality. Thereby, it has the potential to become a huge strain on healthcare systems in the future, necessitating action from legislators and healthcare providers. But how do we best reduce its associated burden on health? As a compromise between differing opinions in the literature and among the authors of this article, we suggest stratifying individuals with prediabetes according to estimated risk and only offering individual-level preventive interventions to those at high risk...
March 10, 2023: Diabetologia
René van Tienhoven, Maria J L Kracht, Arno R van der Slik, Sofia Thomaidou, Anouk H G Wolters, Ben N G Giepmans, Juan Pablo Romero Riojas, Michael S Nelson, Françoise Carlotti, Eelco J P de Koning, Rob C Hoeben, Arnaud Zaldumbide, Bart O Roep
AIMS/HYPOTHESIS: Transcriptome analyses revealed insulin-gene-derived transcripts in non-beta endocrine islet cells. We studied alternative splicing of human INS mRNA in pancreatic islets. METHODS: Alternative splicing of insulin pre-mRNA was determined by PCR analysis performed on human islet RNA and single-cell RNA-seq analysis. Antisera were generated to detect insulin variants in human pancreatic tissue using immunohistochemistry, electron microscopy and single-cell western blot to confirm the expression of insulin variants...
March 8, 2023: Diabetologia
Paola S Apaolaza, Diana Balcacean, Jose Zapardiel-Gonzalo, Teresa Rodriguez-Calvo
AIMS/HYPOTHESIS: Insulitis is not present in all islets, and it is elusive in humans. Although earlier studies focused on islets that fulfilled certain criteria (e.g. ≥15 CD45+ cells or ≥6 CD3+ cells), there is a fundamental lack of understanding of the infiltration dynamics in terms of its magnitude (i.e. how much) and extent (i.e. where). Here, we aimed to perform an in-depth characterisation of T cell infiltration by investigating islets with moderate (1-5 CD3+ cells) and high (≥6 CD3+ cells) infiltration in individuals with and without type 1 diabetes...
March 8, 2023: Diabetologia
Linda C A Drenthen, Mandala Ajie, Evertine J Abbink, Laura Rodwell, Dick H J Thijssen, Cees J Tack, Bastiaan E de Galan
AIMS/HYPOTHESIS: It is generally recommended to reduce basal insulin doses after exercise to reduce the risk of post-exercise nocturnal hypoglycaemia. Based on its long t½ , it is unknown whether such adjustments are required or beneficial for insulin degludec. METHODS: The ADREM study (Adjustment of insulin Degludec to Reduce post-Exercise (nocturnal) hypoglycaeMia in people with diabetes) was a randomised controlled, crossover study in which we compared 40% dose reduction (D40), or postponement and 20% dose reduction (D20-P), with no dose adjustment (CON) in adults with type 1 diabetes at elevated risk of hypoglycaemia, who performed a 45 min aerobic exercise test in the afternoon...
March 7, 2023: Diabetologia
Lauren E Wedekind, Anubha Mahajan, Wen-Chi Hsueh, Peng Chen, Muideen T Olaiya, Sayuko Kobes, Madhumita Sinha, Leslie J Baier, William C Knowler, Mark I McCarthy, Robert L Hanson
AIMS/HYPOTHESIS: There is limited information on how polygenic scores (PSs), based on variants from genome-wide association studies (GWASs) of type 2 diabetes, add to clinical variables in predicting type 2 diabetes incidence, particularly in non-European-ancestry populations. METHODS: For participants in a longitudinal study in an Indigenous population from the Southwestern USA with high type 2 diabetes prevalence, we analysed ten constructions of PS using publicly available GWAS summary statistics...
March 2, 2023: Diabetologia
Marie Pigeyre, Hertzel Gerstein, Emma Ahlqvist, Sibylle Hess, Guillaume Paré
AIMS/HYPOTHESIS: Individuals with diabetes can be clustered into five subtypes using up to six routinely measured clinical variables. We hypothesised that circulating protein levels might be used to distinguish between these subtypes. We recently used five of these six variables to categorise 7017 participants from the Outcome Reduction with an Initial Glargine Intervention (ORIGIN) trial into these subtypes: severe autoimmune diabetes (SAID, n=241), severe insulin-deficient diabetes (SIDD, n=1594), severe insulin-resistant diabetes (SIRD, n=914), mild obesity-related diabetes (MOD, n=1595) and mild age-related diabetes (MARD, n=2673)...
March 1, 2023: Diabetologia
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