Laura L. Määttä, Signe T. Andersen, Tina Parkner, Claus V.B. Hviid, Lasse Bjerg, Mustafa A. Kural, Morten Charles, Esben Søndergaard, Jens Kuhle, Hatice Tankisi, Daniel R. Witte, Troels S. Jensen
OBJECTIVE To investigate the longitudinal development of neurofilament light chain (NfL) levels in type 2 diabetes with and without diabetic polyneuropathy (+/−DPN) and to explore the predictive potential of NfL as a biomarker for DPN. RESEARCH DESIGN AND METHODS We performed retrospective longitudinal case-control analysis of data from 178 participants of the Anglo-Danish-Dutch Study of Intensive Treatment in People with Screen-Detected Diabetes in Primary Care-Denmark (ADDITION-Denmark) cohort of people with screen-detected type 2 diabetes. Biobank samples acquired at the ADDITION-Denmark 5- and 10-year follow-ups were analyzed for serum NfL (s-NfL) using single-molecule array, and the results were compared with established reference material to obtain NfL z-scores. DPN was diagnosed according to Toronto criteria for confirmed DPN at the 10-year follow-up. RESULTS s-NfL increased over time in +DPN (N = 39) and −DPN participants (N = 139) at levels above normal age-induced s-NfL increase. Longitudinal s-NfL change was greater in +DPN than in −DPN participants (17.4% [95% CI 4.3; 32.2] or 0.31 SD [95% CI 0.03; 0.60] higher s-NfL or NfL z-score increase in +DPN compared with −DPN). s-NfL at the 5-year follow-up was positively associated with nerve conduction studies at the 10-year follow-up (P = 0.02 to <0.001), but not with DPN risk. Areas under the curve (AUCs) for s-NfL were not inferior to AUCs for the Michigan Neuropathy Screening Instrument questionnaire score or vibration detection thresholds. Higher yearly s-NfL increase was associated with higher DPN risk (odds ratio 1.36 [95% CI 1.08; 1.71] per 1 ng/L/year). CONCLUSIONS Our findings suggest that preceding s-NfL trajectories differ slightly between those with and without DPN and imply a possible biomarker value of s-NfL trajectories in DPN.
{"title":"Longitudinal Change in Serum Neurofilament Light Chain in Type 2 Diabetes and Early Diabetic Polyneuropathy: ADDITION-Denmark","authors":"Laura L. Määttä, Signe T. Andersen, Tina Parkner, Claus V.B. Hviid, Lasse Bjerg, Mustafa A. Kural, Morten Charles, Esben Søndergaard, Jens Kuhle, Hatice Tankisi, Daniel R. Witte, Troels S. Jensen","doi":"10.2337/dc23-2208","DOIUrl":"https://doi.org/10.2337/dc23-2208","url":null,"abstract":"OBJECTIVE To investigate the longitudinal development of neurofilament light chain (NfL) levels in type 2 diabetes with and without diabetic polyneuropathy (+/−DPN) and to explore the predictive potential of NfL as a biomarker for DPN. RESEARCH DESIGN AND METHODS We performed retrospective longitudinal case-control analysis of data from 178 participants of the Anglo-Danish-Dutch Study of Intensive Treatment in People with Screen-Detected Diabetes in Primary Care-Denmark (ADDITION-Denmark) cohort of people with screen-detected type 2 diabetes. Biobank samples acquired at the ADDITION-Denmark 5- and 10-year follow-ups were analyzed for serum NfL (s-NfL) using single-molecule array, and the results were compared with established reference material to obtain NfL z-scores. DPN was diagnosed according to Toronto criteria for confirmed DPN at the 10-year follow-up. RESULTS s-NfL increased over time in +DPN (N = 39) and −DPN participants (N = 139) at levels above normal age-induced s-NfL increase. Longitudinal s-NfL change was greater in +DPN than in −DPN participants (17.4% [95% CI 4.3; 32.2] or 0.31 SD [95% CI 0.03; 0.60] higher s-NfL or NfL z-score increase in +DPN compared with −DPN). s-NfL at the 5-year follow-up was positively associated with nerve conduction studies at the 10-year follow-up (P = 0.02 to &lt;0.001), but not with DPN risk. Areas under the curve (AUCs) for s-NfL were not inferior to AUCs for the Michigan Neuropathy Screening Instrument questionnaire score or vibration detection thresholds. Higher yearly s-NfL increase was associated with higher DPN risk (odds ratio 1.36 [95% CI 1.08; 1.71] per 1 ng/L/year). CONCLUSIONS Our findings suggest that preceding s-NfL trajectories differ slightly between those with and without DPN and imply a possible biomarker value of s-NfL trajectories in DPN.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"5 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140164619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria C. Foss-Freitas, Salman Imam, Adam Neidert, Anabela Dill Gomes, David T. Broome, Elif A. Oral
OBJECTIVE Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are widely used for the management of diabetes mellitus (DM), but their efficacy in familial partial lipodystrophy (FPLD) is unknown. In this retrospective study, we evaluated the effect of GLP-1RA in patients with FPLD. RESEARCH DESIGN AND METHODS We analyzed data, reported with SDs, from 14 patients with FPLD (aged 58 ± 12 years; 76.47% female) and 14 patients with type 2 DM (aged 58 ± 13 years; 71% female) before and 6 months after starting GLP-1RA. RESULTS We observed reduction in weight (95 ± 23 to 91 ± 22 kg; P = 0.002), BMI (33 ± 6 to 31 ± 6 kg/m2; P = 0.001), HbA1c (8.2% ± 1.4% to 7.7% ± 1.4%; P = 0.02), and fasting glucose (186 ± 64 to 166 ± 53 mg/dL; P = 0.04) in patients with FPLD. The change in triglycerides after treatment was greater in the FPLD group compared with the DM group (P = 0.02). We noted acute pancreatitis in two cases with FPLD with longer therapy. CONCLUSIONS Our study demonstrates the relative safety and effectiveness of GLP-1RA in patients with FPLD.
{"title":"The Efficacy and Safety of Glucagon-Like Peptide-1 Agonists in a Retrospective Study of Patients With Familial Partial Lipodystrophy","authors":"Maria C. Foss-Freitas, Salman Imam, Adam Neidert, Anabela Dill Gomes, David T. Broome, Elif A. Oral","doi":"10.2337/dc23-1614","DOIUrl":"https://doi.org/10.2337/dc23-1614","url":null,"abstract":"OBJECTIVE Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are widely used for the management of diabetes mellitus (DM), but their efficacy in familial partial lipodystrophy (FPLD) is unknown. In this retrospective study, we evaluated the effect of GLP-1RA in patients with FPLD. RESEARCH DESIGN AND METHODS We analyzed data, reported with SDs, from 14 patients with FPLD (aged 58 ± 12 years; 76.47% female) and 14 patients with type 2 DM (aged 58 ± 13 years; 71% female) before and 6 months after starting GLP-1RA. RESULTS We observed reduction in weight (95 ± 23 to 91 ± 22 kg; P = 0.002), BMI (33 ± 6 to 31 ± 6 kg/m2; P = 0.001), HbA1c (8.2% ± 1.4% to 7.7% ± 1.4%; P = 0.02), and fasting glucose (186 ± 64 to 166 ± 53 mg/dL; P = 0.04) in patients with FPLD. The change in triglycerides after treatment was greater in the FPLD group compared with the DM group (P = 0.02). We noted acute pancreatitis in two cases with FPLD with longer therapy. CONCLUSIONS Our study demonstrates the relative safety and effectiveness of GLP-1RA in patients with FPLD.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"5 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139659907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Baojun Wu, Sook Wah Yee, Shujie Xiao, Fei Xu, Sneha B Sridhar, Mao Yang, Samantha Hochstadt, Whitney Cabral, David E Lanfear, Monique M Hedderson, Kathleen M Giacomini, L Keoki Williams
Objective: Metformin is the most common treatment for type 2 diabetes (T2D). However, there have been no pharmacogenomic studies for T2D in which a population of color was used in the discovery analysis. This study sought to identify genomic variants associated with metformin response in African American patients with diabetes.
Research design and methods: Patients in the discovery set were adult, African American participants from the Diabetes Multi-omic Investigation of Drug Response (DIAMOND), a cohort study of patients with T2D from a health system serving southeast Michigan. DIAMOND participants had genome-wide genotype data and longitudinal electronic records of laboratory results and medication fills. The genome-wide discovery analysis identified polymorphisms correlated to changes in glycated hemoglobin (HbA1c) levels among individuals on metformin monotherapy. Lead associations were assessed for replication in an independent cohort of African American participants from Kaiser Permanente Northern California (KPNC) and in European American participants from DIAMOND.
Results: The discovery set consisted of 447 African American participants, whereas the replication sets included 353 African American KPNC participants and 466 European American DIAMOND participants. The primary analysis identified a variant, rs143276236, in the gene ARFGEF3, which met the threshold for genome-wide significance, replicated in KPNC African Americans, and was still significant in the meta-analysis (P = 1.17 × 10-9). None of the significant discovery variants replicated in European Americans DIAMOND participants.
Conclusions: We identified a novel and biologically plausible genetic variant associated with a change in HbA1c levels among African American patients on metformin monotherapy. These results highlight the importance of diversity in pharmacogenomic studies.
{"title":"Genome-Wide Association Study Identifies Pharmacogenomic Variants Associated With Metformin Glycemic Response in African American Patients With Type 2 Diabetes.","authors":"Baojun Wu, Sook Wah Yee, Shujie Xiao, Fei Xu, Sneha B Sridhar, Mao Yang, Samantha Hochstadt, Whitney Cabral, David E Lanfear, Monique M Hedderson, Kathleen M Giacomini, L Keoki Williams","doi":"10.2337/dc22-2494","DOIUrl":"10.2337/dc22-2494","url":null,"abstract":"<p><strong>Objective: </strong>Metformin is the most common treatment for type 2 diabetes (T2D). However, there have been no pharmacogenomic studies for T2D in which a population of color was used in the discovery analysis. This study sought to identify genomic variants associated with metformin response in African American patients with diabetes.</p><p><strong>Research design and methods: </strong>Patients in the discovery set were adult, African American participants from the Diabetes Multi-omic Investigation of Drug Response (DIAMOND), a cohort study of patients with T2D from a health system serving southeast Michigan. DIAMOND participants had genome-wide genotype data and longitudinal electronic records of laboratory results and medication fills. The genome-wide discovery analysis identified polymorphisms correlated to changes in glycated hemoglobin (HbA1c) levels among individuals on metformin monotherapy. Lead associations were assessed for replication in an independent cohort of African American participants from Kaiser Permanente Northern California (KPNC) and in European American participants from DIAMOND.</p><p><strong>Results: </strong>The discovery set consisted of 447 African American participants, whereas the replication sets included 353 African American KPNC participants and 466 European American DIAMOND participants. The primary analysis identified a variant, rs143276236, in the gene ARFGEF3, which met the threshold for genome-wide significance, replicated in KPNC African Americans, and was still significant in the meta-analysis (P = 1.17 × 10-9). None of the significant discovery variants replicated in European Americans DIAMOND participants.</p><p><strong>Conclusions: </strong>We identified a novel and biologically plausible genetic variant associated with a change in HbA1c levels among African American patients on metformin monotherapy. These results highlight the importance of diversity in pharmacogenomic studies.</p>","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":" ","pages":"208-215"},"PeriodicalIF":16.2,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10834390/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10108386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Frans Pouwer, Kara Mizokami-Stout, Neil D. Reeves, Rodica Pop-Busui, Solomon Tesfaye, Andrew J.M. Boulton, Loretta Vileikyte
Psychological factors and psychosocial care for individuals with diabetic neuropathy (DN), a common and burdensome complication of diabetes, are important but overlooked areas. In this article we focus on common clinical manifestations of DN, unremitting neuropathic pain, postural instability, and foot complications, and their psychosocial impact, including depression, anxiety, poor sleep quality, and specific problems such as fear of falling and fear of amputation. We also summarize the evidence regarding the negative impact of psychological factors such as depression on DN, self-care tasks, and future health outcomes. The clinical problem of underdetection and undertreatment of psychological problems is described, together with the value of using brief assessments of these in clinical care. We conclude by discussing trial evidence regarding the effectiveness of current pharmacological and nonpharmacological approaches and also future directions for developing and testing new psychological treatments for DN and its clinical manifestations.
{"title":"Psychosocial Care for People With Diabetic Neuropathy: Time for Action","authors":"Frans Pouwer, Kara Mizokami-Stout, Neil D. Reeves, Rodica Pop-Busui, Solomon Tesfaye, Andrew J.M. Boulton, Loretta Vileikyte","doi":"10.2337/dci23-0033","DOIUrl":"https://doi.org/10.2337/dci23-0033","url":null,"abstract":"Psychological factors and psychosocial care for individuals with diabetic neuropathy (DN), a common and burdensome complication of diabetes, are important but overlooked areas. In this article we focus on common clinical manifestations of DN, unremitting neuropathic pain, postural instability, and foot complications, and their psychosocial impact, including depression, anxiety, poor sleep quality, and specific problems such as fear of falling and fear of amputation. We also summarize the evidence regarding the negative impact of psychological factors such as depression on DN, self-care tasks, and future health outcomes. The clinical problem of underdetection and undertreatment of psychological problems is described, together with the value of using brief assessments of these in clinical care. We conclude by discussing trial evidence regarding the effectiveness of current pharmacological and nonpharmacological approaches and also future directions for developing and testing new psychological treatments for DN and its clinical manifestations.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"36 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138823002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samuel Seidu, Setor K. Kunutsor, Ramzi A. Ajjan, Pratik Choudhary
BACKGROUND Traditional diabetes self-monitoring of blood glucose (SMBG) involves inconvenient finger pricks. Continuous glucose monitoring (CGM) and intermittently scanned CGM (isCGM) systems offer CGM, enhancing type 2 diabetes (T2D) management with convenient, comprehensive data. PURPOSE To assess the benefits and potential harms of CGM and isCGM compared with usual care or SMBG in individuals with T2D. DATA SOURCES We conducted a comprehensive search of MEDLINE, Embase, the Cochrane Library, Web of Science, and bibliographies up to August 2023. STUDY SELECTION We analyzed studies meeting these criteria: randomized controlled trials (RCT) with comparison of at least two interventions for ≥8 weeks in T2D patients, including CGM in real-time/retrospective mode, short-/long-term CGM, isCGM, and SMBG, reporting glycemic and relevant data. DATA EXTRACTION We used a standardized data collection form, extracting details including author, year, study design, baseline characteristics, intervention, and outcomes. DATA SYNTHESIS We included 26 RCTs (17 CGM and 9 isCGM) involving 2,783 patients with T2D (CGM 632 vs. usual care/SMBG 514 and isCGM 871 vs. usual care/SMBG 766). CGM reduced HbA1c (mean difference −0.19% [95% CI −0.34, −0.04]) and glycemic medication effect score (−0.67 [−1.20 to −0.13]), reduced user satisfaction (−0.54 [−0.98, −0.11]), and increased the risk of adverse events (relative risk [RR] 1.22 [95% CI 1.01, 1.47]). isCGM reduced HbA1c by −0.31% (−0.46, −0.17), increased user satisfaction (0.44 [0.29, 0.59]), improved CGM metrics, and increased the risk of adverse events (RR 1.30 [0.05, 1.62]). Neither CGM nor isCGM had a significant impact on body composition, blood pressure, or lipid levels. LIMITATIONS Limitations include small samples, single-study outcomes, population variations, and uncertainty for younger adults. Additionally, inclusion of <10 studies for most end points restricted comprehensive analysis, and technological advancements over time need to be considered. CONCLUSIONS Both CGM and isCGM demonstrated a reduction in HbA1c levels in individuals with T2D, and unlike CGM, isCGM use was associated with improved user satisfaction. The impact of these devices on body composition, blood pressure, and lipid levels remains unclear, while both CGM and isCGM use were associated with increased risk of adverse events.
{"title":"Efficacy and Safety of Continuous Glucose Monitoring and Intermittently Scanned Continuous Glucose Monitoring in Patients With Type 2 Diabetes: A Systematic Review and Meta-analysis of Interventional Evidence","authors":"Samuel Seidu, Setor K. Kunutsor, Ramzi A. Ajjan, Pratik Choudhary","doi":"10.2337/dc23-1520","DOIUrl":"https://doi.org/10.2337/dc23-1520","url":null,"abstract":"BACKGROUND Traditional diabetes self-monitoring of blood glucose (SMBG) involves inconvenient finger pricks. Continuous glucose monitoring (CGM) and intermittently scanned CGM (isCGM) systems offer CGM, enhancing type 2 diabetes (T2D) management with convenient, comprehensive data. PURPOSE To assess the benefits and potential harms of CGM and isCGM compared with usual care or SMBG in individuals with T2D. DATA SOURCES We conducted a comprehensive search of MEDLINE, Embase, the Cochrane Library, Web of Science, and bibliographies up to August 2023. STUDY SELECTION We analyzed studies meeting these criteria: randomized controlled trials (RCT) with comparison of at least two interventions for ≥8 weeks in T2D patients, including CGM in real-time/retrospective mode, short-/long-term CGM, isCGM, and SMBG, reporting glycemic and relevant data. DATA EXTRACTION We used a standardized data collection form, extracting details including author, year, study design, baseline characteristics, intervention, and outcomes. DATA SYNTHESIS We included 26 RCTs (17 CGM and 9 isCGM) involving 2,783 patients with T2D (CGM 632 vs. usual care/SMBG 514 and isCGM 871 vs. usual care/SMBG 766). CGM reduced HbA1c (mean difference −0.19% [95% CI −0.34, −0.04]) and glycemic medication effect score (−0.67 [−1.20 to −0.13]), reduced user satisfaction (−0.54 [−0.98, −0.11]), and increased the risk of adverse events (relative risk [RR] 1.22 [95% CI 1.01, 1.47]). isCGM reduced HbA1c by −0.31% (−0.46, −0.17), increased user satisfaction (0.44 [0.29, 0.59]), improved CGM metrics, and increased the risk of adverse events (RR 1.30 [0.05, 1.62]). Neither CGM nor isCGM had a significant impact on body composition, blood pressure, or lipid levels. LIMITATIONS Limitations include small samples, single-study outcomes, population variations, and uncertainty for younger adults. Additionally, inclusion of &lt;10 studies for most end points restricted comprehensive analysis, and technological advancements over time need to be considered. CONCLUSIONS Both CGM and isCGM demonstrated a reduction in HbA1c levels in individuals with T2D, and unlike CGM, isCGM use was associated with improved user satisfaction. The impact of these devices on body composition, blood pressure, and lipid levels remains unclear, while both CGM and isCGM use were associated with increased risk of adverse events.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"8 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138823070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
South Asian populations have a higher prevalence and earlier age of onset of type 2 diabetes and atherosclerotic cardiovascular diseases than other race and ethnic groups. To better understand the pathophysiology and multilevel risk factors for diabetes and cardiovascular disease, we established the Mediators of Atherosclerosis in South Asians Living in America (MASALA) study in 2010. The original MASALA study cohort (n = 1,164) included 83% Asian Indian immigrants, with an ongoing expansion of the study to include individuals of Bangladeshi and Pakistani origin. We have found that South Asian Americans in the MASALA study had higher type 2 diabetes prevalence, lower insulin secretion, more insulin resistance, and an adverse body composition with higher liver and intermuscular fat and lower lean muscle mass compared with four other U.S. race and ethnic groups. MASALA study participants with diabetes were more likely to have the severe hyperglycemia subtype, characterized by β-cell dysfunction and lower body weight, and this subtype was associated with a higher incidence of subclinical atherosclerosis. We have found several modifiable factors for cardiometabolic disease among South Asians including diet and physical activity that can be influenced using specific social network members and with cultural adaptations to the U.S. context. Longitudinal data with repeat cardiometabolic measures that are supplemented with qualitative and mixed-method approaches enable a deeper understanding of disease risk and resilience factors. Studying and contrasting Asian American subgroups can uncover the causes for cardiometabolic disease heterogeneity and reveal novel methods for prevention and treatment.
{"title":"Diabetes in South Asians: Uncovering Novel Risk Factors With Longitudinal Epidemiologic Data: Kelly West Award Lecture 2023","authors":"Alka M. Kanaya","doi":"10.2337/dci23-0068","DOIUrl":"https://doi.org/10.2337/dci23-0068","url":null,"abstract":"South Asian populations have a higher prevalence and earlier age of onset of type 2 diabetes and atherosclerotic cardiovascular diseases than other race and ethnic groups. To better understand the pathophysiology and multilevel risk factors for diabetes and cardiovascular disease, we established the Mediators of Atherosclerosis in South Asians Living in America (MASALA) study in 2010. The original MASALA study cohort (n = 1,164) included 83% Asian Indian immigrants, with an ongoing expansion of the study to include individuals of Bangladeshi and Pakistani origin. We have found that South Asian Americans in the MASALA study had higher type 2 diabetes prevalence, lower insulin secretion, more insulin resistance, and an adverse body composition with higher liver and intermuscular fat and lower lean muscle mass compared with four other U.S. race and ethnic groups. MASALA study participants with diabetes were more likely to have the severe hyperglycemia subtype, characterized by β-cell dysfunction and lower body weight, and this subtype was associated with a higher incidence of subclinical atherosclerosis. We have found several modifiable factors for cardiometabolic disease among South Asians including diet and physical activity that can be influenced using specific social network members and with cultural adaptations to the U.S. context. Longitudinal data with repeat cardiometabolic measures that are supplemented with qualitative and mixed-method approaches enable a deeper understanding of disease risk and resilience factors. Studying and contrasting Asian American subgroups can uncover the causes for cardiometabolic disease heterogeneity and reveal novel methods for prevention and treatment.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"36 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138822771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Javier Castañeda, Arcelia Arrieta, Tim van den Heuvel, Tadej Battelino, Ohad Cohen
OBJECTIVE We studied time in tight range (TITR; 70–140 mg/dL) in real-world users of the MiniMed 780G system (MM780G). RESEARCH DESIGN AND METHODS CareLink Personal data were extracted (August 2020 to December 2022) to examine TITR and its relationship with time in range (TIR; 70–180 mg/dL), factors predicting higher TITR, and which TITR target is a reasonable treatment goal. RESULTS The 13,461 users (3,762 age ≤15 years and 9,699 age >15 years) showed an average TITR of 48.9% in those age ≤15 years and 48.8% in the older group (vs. TIR 71.2% and 73.9%, respectively). Consistent use of a glucose target (GT) of 100 mg/dL and active insulin time (AIT) of 2 h were the most relevant factors predicting higher TITR (P < 0.0001). In users consistently applying these optimal settings, TITR was 56.7% in those age ≤15 years and 57.0% in the older group, and the relative impact of these settings on TITR was 60% and 86% greater than that on TIR, respectively. TITRs of ∼45% (age ≤15 years 46.3% and older group 45.4%), ∼50% (50.7% and 50.7%) and ∼55% (56.4% and 58.0%) were best associated with glucose management indicators <7.0%, <6.8%, and <6.5%, respectively. TITRs of >45%, >50%, and >55% were achieved in 91%, 74%, and 55% of those age ≤15 years and 93%, 81%, and 57% of older group users, respectively, at optimal settings. CONCLUSIONS This study demonstrates that 1) mean TIR is high with a high mean TITR in MM780G users (>48%), 2) consistent use of optimal GT/AIT improves TITR (>56%), 3) the impact of these settings on TITR is larger than on TIR, and 4) a TITR target >50% is our suggested treatment goal.
{"title":"Time in Tight Glucose Range in Type 1 Diabetes: Predictive Factors and Achievable Targets in Real-World Users of the MiniMed 780G System","authors":"Javier Castañeda, Arcelia Arrieta, Tim van den Heuvel, Tadej Battelino, Ohad Cohen","doi":"10.2337/dc23-1581","DOIUrl":"https://doi.org/10.2337/dc23-1581","url":null,"abstract":"OBJECTIVE We studied time in tight range (TITR; 70–140 mg/dL) in real-world users of the MiniMed 780G system (MM780G). RESEARCH DESIGN AND METHODS CareLink Personal data were extracted (August 2020 to December 2022) to examine TITR and its relationship with time in range (TIR; 70–180 mg/dL), factors predicting higher TITR, and which TITR target is a reasonable treatment goal. RESULTS The 13,461 users (3,762 age ≤15 years and 9,699 age &gt;15 years) showed an average TITR of 48.9% in those age ≤15 years and 48.8% in the older group (vs. TIR 71.2% and 73.9%, respectively). Consistent use of a glucose target (GT) of 100 mg/dL and active insulin time (AIT) of 2 h were the most relevant factors predicting higher TITR (P &lt; 0.0001). In users consistently applying these optimal settings, TITR was 56.7% in those age ≤15 years and 57.0% in the older group, and the relative impact of these settings on TITR was 60% and 86% greater than that on TIR, respectively. TITRs of ∼45% (age ≤15 years 46.3% and older group 45.4%), ∼50% (50.7% and 50.7%) and ∼55% (56.4% and 58.0%) were best associated with glucose management indicators &lt;7.0%, &lt;6.8%, and &lt;6.5%, respectively. TITRs of &gt;45%, &gt;50%, and &gt;55% were achieved in 91%, 74%, and 55% of those age ≤15 years and 93%, 81%, and 57% of older group users, respectively, at optimal settings. CONCLUSIONS This study demonstrates that 1) mean TIR is high with a high mean TITR in MM780G users (&gt;48%), 2) consistent use of optimal GT/AIT improves TITR (&gt;56%), 3) the impact of these settings on TITR is larger than on TIR, and 4) a TITR target &gt;50% is our suggested treatment goal.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"70 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138770796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria Hornstrup Christensen, Claus Bistrup, Katrine Hass Rubin, Ellen Aagaard Nohr, Christina Anne Vinter, Marianne Skovsager Andersen, Sören Möller, Dorte Moeller Jensen
OBJECTIVE The association between gestational diabetes mellitus (GDM) and incident kidney disease, the mediating effects of diabetes and hypertension, and the impact of severity of metabolic dysfunction during pregnancy on the risk of incident kidney disease were investigated in this study. RESEARCH DESIGN AND METHODS This Danish, nationwide, register-based cohort study included all women giving birth between 1997 and 2018. Outcomes included chronic kidney disease (CKD) and acute kidney disease, based on diagnosis codes. Cox regression analyses explored the association between GDM and kidney disease. A proxy for severity of metabolic dysfunction during pregnancy was based on GDM diagnosis and insulin treatment during GDM in pregnancy and was included in the models as an interaction term. The mediating effects of subsequent diabetes and hypertension prior to kidney disease were quantified using mediation analyses. RESULTS Data from 697,622 women were used. Median follow-up was 11.9 years. GDM was associated with higher risk of CKD (adjusted hazard ratio [aHR] 1.92; 95% CI 1.67–2.21), whereas acute kidney disease was unrelated to GDM. The proportions of indirect effects of diabetes and hypertension on the association between GDM and CKD were 75.7% (95% CI 61.8–89.6) and 30.3% (95% CI 25.2–35.4), respectively, as assessed by mediation analyses. The CKD risk was significantly increased in women with insulin-treated GDM and no subsequent diabetes compared with women without GDM (aHR 2.35; 95% CI 1.39–3.97). CONCLUSIONS The risk of CKD was significantly elevated after GDM irrespective of subsequent development of diabetes and hypertension. Furthermore, women with severe metabolic dysfunction during pregnancy had the highest CKD risk.
目的探讨妊娠期糖尿病(GDM)与肾脏疾病发生的关系、糖尿病和高血压的中介作用以及妊娠期代谢功能障碍严重程度对肾脏疾病发生风险的影响。研究设计和方法这项丹麦全国性的基于登记的队列研究包括了1997年至2018年间分娩的所有女性。结果包括慢性肾脏疾病(CKD)和急性肾脏疾病,基于诊断代码。Cox回归分析探讨了GDM与肾脏疾病之间的关系。妊娠期代谢功能障碍严重程度的代理是基于妊娠期GDM诊断和胰岛素治疗,并作为相互作用项纳入模型。随后的糖尿病和高血压在肾脏疾病之前的中介作用被量化使用中介分析。结果:研究数据来自697,622名女性。中位随访时间为11.9年。GDM与较高的CKD风险相关(校正风险比[aHR] 1.92;95% CI 1.67-2.21),而急性肾病与GDM无关。通过中介分析评估,糖尿病和高血压对GDM和CKD之间关联的间接影响比例分别为75.7% (95% CI 61.8-89.6)和30.3% (95% CI 25.2-35.4)。与没有GDM的女性相比,接受胰岛素治疗的GDM且无后续糖尿病的女性CKD风险显著增加(aHR 2.35;95% ci 1.39-3.97)。结论:无论随后是否发展为糖尿病和高血压,GDM后CKD的风险均显著升高。此外,怀孕期间有严重代谢功能障碍的妇女患CKD的风险最高。
{"title":"Kidney Disease in Women With Previous Gestational Diabetes Mellitus: A Nationwide Register-Based Cohort Study","authors":"Maria Hornstrup Christensen, Claus Bistrup, Katrine Hass Rubin, Ellen Aagaard Nohr, Christina Anne Vinter, Marianne Skovsager Andersen, Sören Möller, Dorte Moeller Jensen","doi":"10.2337/dc23-1092","DOIUrl":"https://doi.org/10.2337/dc23-1092","url":null,"abstract":"OBJECTIVE The association between gestational diabetes mellitus (GDM) and incident kidney disease, the mediating effects of diabetes and hypertension, and the impact of severity of metabolic dysfunction during pregnancy on the risk of incident kidney disease were investigated in this study. RESEARCH DESIGN AND METHODS This Danish, nationwide, register-based cohort study included all women giving birth between 1997 and 2018. Outcomes included chronic kidney disease (CKD) and acute kidney disease, based on diagnosis codes. Cox regression analyses explored the association between GDM and kidney disease. A proxy for severity of metabolic dysfunction during pregnancy was based on GDM diagnosis and insulin treatment during GDM in pregnancy and was included in the models as an interaction term. The mediating effects of subsequent diabetes and hypertension prior to kidney disease were quantified using mediation analyses. RESULTS Data from 697,622 women were used. Median follow-up was 11.9 years. GDM was associated with higher risk of CKD (adjusted hazard ratio [aHR] 1.92; 95% CI 1.67–2.21), whereas acute kidney disease was unrelated to GDM. The proportions of indirect effects of diabetes and hypertension on the association between GDM and CKD were 75.7% (95% CI 61.8–89.6) and 30.3% (95% CI 25.2–35.4), respectively, as assessed by mediation analyses. The CKD risk was significantly increased in women with insulin-treated GDM and no subsequent diabetes compared with women without GDM (aHR 2.35; 95% CI 1.39–3.97). CONCLUSIONS The risk of CKD was significantly elevated after GDM irrespective of subsequent development of diabetes and hypertension. Furthermore, women with severe metabolic dysfunction during pregnancy had the highest CKD risk.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"27 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138657524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rachel E.J. Besser, Anna E. Long, Katharine R. Owen, Rebecca Law, Jacqueline S. Birks, Olivia Pearce, Claire L. Williams, Claire L. Scudder, Timothy J. McDonald, John A. Todd
OBJECTIVE C-peptide and islet autoantibodies are key type 1 diabetes biomarkers, typically requiring venous sampling, which limits their utility. We assessed transdermal capillary blood (TCB) collection as a practical alternative. RESEARCH DESIGN AND METHODS Ninety-one individuals (71 with type 1 diabetes, 20 controls; individuals with type 1 diabetes: aged median 14.8 years [interquartile range (IQR) 9.1–17.1], diabetes duration 4.0 years [1.5–7.7]; controls: 42.2 years [38.0–52.1]) underwent contemporaneous venous and TCB sampling for measurement of plasma C-peptide. Participants with type 1 diabetes also provided venous serum and plasma, and TCB plasma for measurement of autoantibodies to glutamate decarboxylase, islet antigen-2, and zinc transporter 8. The ability of TCB plasma to detect significant endogenous insulin secretion (venous C-peptide ≥200 pmol/L) was compared along with agreement in levels, using Bland-Altman. Venous serum was compared with venous and TCB plasma for detection of autoantibodies, using established thresholds. Acceptability was assessed by age-appropriate questionnaire. RESULTS Transdermal sampling took a mean of 2.35 min (SD 1.49). Median sample volume was 50 µL (IQR 40–50) with 3 of 91 (3.3%) failures, and 13 of 88 (14.7%) <35 µL. TCB C-peptide showed good agreement with venous plasma (mean venous ln[C-peptide] – TCB ln[C-peptide] = 0.008, 95% CI [−0.23, 0.29], with 100% [36 of 36] sensitivity/100% [50 of 50] specificity to detect venous C-peptide ≥200 pmol/L). Where venous serum in multiple autoantibody positive TCB plasma agreed in 22 of 32 (sensitivity 69%), comparative specificity was 35 of 36 (97%). TCB was preferred to venous sampling (type 1 diabetes: 63% vs. 7%; 30% undecided). CONCLUSIONS Transdermal capillary testing for C-peptide is a sensitive, specific, and acceptable alternative to venous sampling; TCB sampling for islet autoantibodies needs further assessment.
{"title":"Transdermal Blood Sampling for C-Peptide Is a Minimally Invasive, Reliable Alternative to Venous Sampling in Children and Adults With Type 1 Diabetes","authors":"Rachel E.J. Besser, Anna E. Long, Katharine R. Owen, Rebecca Law, Jacqueline S. Birks, Olivia Pearce, Claire L. Williams, Claire L. Scudder, Timothy J. McDonald, John A. Todd","doi":"10.2337/dc23-1379","DOIUrl":"https://doi.org/10.2337/dc23-1379","url":null,"abstract":"OBJECTIVE C-peptide and islet autoantibodies are key type 1 diabetes biomarkers, typically requiring venous sampling, which limits their utility. We assessed transdermal capillary blood (TCB) collection as a practical alternative. RESEARCH DESIGN AND METHODS Ninety-one individuals (71 with type 1 diabetes, 20 controls; individuals with type 1 diabetes: aged median 14.8 years [interquartile range (IQR) 9.1–17.1], diabetes duration 4.0 years [1.5–7.7]; controls: 42.2 years [38.0–52.1]) underwent contemporaneous venous and TCB sampling for measurement of plasma C-peptide. Participants with type 1 diabetes also provided venous serum and plasma, and TCB plasma for measurement of autoantibodies to glutamate decarboxylase, islet antigen-2, and zinc transporter 8. The ability of TCB plasma to detect significant endogenous insulin secretion (venous C-peptide ≥200 pmol/L) was compared along with agreement in levels, using Bland-Altman. Venous serum was compared with venous and TCB plasma for detection of autoantibodies, using established thresholds. Acceptability was assessed by age-appropriate questionnaire. RESULTS Transdermal sampling took a mean of 2.35 min (SD 1.49). Median sample volume was 50 µL (IQR 40–50) with 3 of 91 (3.3%) failures, and 13 of 88 (14.7%) &lt;35 µL. TCB C-peptide showed good agreement with venous plasma (mean venous ln[C-peptide] – TCB ln[C-peptide] = 0.008, 95% CI [−0.23, 0.29], with 100% [36 of 36] sensitivity/100% [50 of 50] specificity to detect venous C-peptide ≥200 pmol/L). Where venous serum in multiple autoantibody positive TCB plasma agreed in 22 of 32 (sensitivity 69%), comparative specificity was 35 of 36 (97%). TCB was preferred to venous sampling (type 1 diabetes: 63% vs. 7%; 30% undecided). CONCLUSIONS Transdermal capillary testing for C-peptide is a sensitive, specific, and acceptable alternative to venous sampling; TCB sampling for islet autoantibodies needs further assessment.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"68 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138582493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Richard S. Chaudhary, Melanie B. Turner, Laxmi S. Mehta, Nora M. Al-Roub, Sidney C. Smith, Dhruv S. Kazi
OBJECTIVE Awareness of diabetes as a major risk factor for cardiovascular disease (CVD) may enhance uptake of screening for diabetes and primary prevention of CVD. RESEARCH DESIGN AND METHODS The American Heart Association conducted an online survey in 50 countries. The main outcome of this study was the proportion of individuals in each country who recognized diabetes as a CVD risk factor. We also examined variation by sex, age, geographic region, and country-level economic development. RESULTS Among 48,988 respondents, 15,747 (32.1%) identified diabetes as a major CVD risk factor. Awareness was similar among men and women, but increased with age, and was greater in high-income than in middle-income countries. CONCLUSIONS Two-thirds of adults in surveyed countries did not recognize diabetes as a major CVD risk factor. Given the increasing global burden of diabetes and CVD, this finding underscores the need for concerted efforts to raise public health awareness.
{"title":"Low Awareness of Diabetes as a Major Risk Factor for Cardiovascular Disease in Middle- and High-Income Countries","authors":"Richard S. Chaudhary, Melanie B. Turner, Laxmi S. Mehta, Nora M. Al-Roub, Sidney C. Smith, Dhruv S. Kazi","doi":"10.2337/dc23-1731","DOIUrl":"https://doi.org/10.2337/dc23-1731","url":null,"abstract":"OBJECTIVE Awareness of diabetes as a major risk factor for cardiovascular disease (CVD) may enhance uptake of screening for diabetes and primary prevention of CVD. RESEARCH DESIGN AND METHODS The American Heart Association conducted an online survey in 50 countries. The main outcome of this study was the proportion of individuals in each country who recognized diabetes as a CVD risk factor. We also examined variation by sex, age, geographic region, and country-level economic development. RESULTS Among 48,988 respondents, 15,747 (32.1%) identified diabetes as a major CVD risk factor. Awareness was similar among men and women, but increased with age, and was greater in high-income than in middle-income countries. CONCLUSIONS Two-thirds of adults in surveyed countries did not recognize diabetes as a major CVD risk factor. Given the increasing global burden of diabetes and CVD, this finding underscores the need for concerted efforts to raise public health awareness.","PeriodicalId":11140,"journal":{"name":"Diabetes Care","volume":"16 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138582673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}