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Greve JH, Mørk F, Jensen AK, Kaur S, Madsen JOB, Bugge A, Heidemann M, Wedderkopp N, Johannesen J. Lipid levels in a cohort of healthy Danish schoolchildren ages 5 to 17 years. Scand J Clin Lab Invest 2024; 84:285-295. [PMID: 39012082 DOI: 10.1080/00365513.2024.2370011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 06/08/2024] [Accepted: 06/16/2024] [Indexed: 07/17/2024]
Abstract
It is internationally recognized to use clinical decision limits (CDL) when interpreting the lipid levels in both adults and children, even though the evidence for children is scarce. The purpose of this study is to describe how lipid levels progress in healthy Danish children ages 5 to 17 years. This study is based on the Childhood Health, Activity, and Motor Performance School Study Denmark (CHAMPS-study DK) consisting of 1456 observations of schoolchildren aged 5 to 17 years. Participants have been tested for blood levels of total cholesterol, low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides, and remnant cholesterol levels are calculated. Finally, sex-specific percentile reference curves are presented. Percentile reference curves stratified by sex were generated for all cholesterols and showed that the total cholesterol level peaks at 4.32 mmol/l in 10-year-old boys and 4.46 mmol/l in nine-year-old girls. HDL levels in boys peak at 1.72 mmol/l in nine-year-old boys. HDL levels in girls and LDL levels in both sexes are nearly constant. Triglycerides kept rising to the age of 17 years in both sexes and remnant cholesterol decreased from age 5 to 17 years in both sexes. BMI z-score adjustment revealed no significant association with total cholesterol in both sexes but a significant association between HDL, LDL, triglycerides, and remnant cholesterol. This study is the first to generate percentile reference curves for blood levels of total cholesterol, LDL, HDL, triglycerides, and remnant cholesterol in a cohort of healthy Danish children aged 5 to 17 years.
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Affiliation(s)
- Jens Heller Greve
- Department of Pediatric and Adolescent Medicine, Herlev and Gentofte Hospitals, Denmark
| | - Freja Mørk
- Department of Pediatric and Adolescent Medicine, Herlev and Gentofte Hospitals, Denmark
- Department of Clinical Research, Steno Diabetes Center Copenhagen, Denmark
| | - Andreas Kryger Jensen
- Section of Biostatistics, Department of Public Health, Faculty of Health Sciences, University of Copenhagen, Denmark
| | - Simranjeet Kaur
- Department of Clinical Research, Steno Diabetes Center Copenhagen, Denmark
| | | | - Anna Bugge
- Department of Midwifery, Physiotherapy, Occupational Therapy and Psychomotor Therapy, University College Copenhagen, Copenhagen, Denmark
| | - Malene Heidemann
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- Hans Christian Andersen Children's Hospital, Odense University Hospital, Denmark
| | - Niels Wedderkopp
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- OPEN, Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Jesper Johannesen
- Department of Pediatric and Adolescent Medicine, Herlev and Gentofte Hospitals, Denmark
- Department of Clinical Research, Steno Diabetes Center Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Huerta-Uribe N, Ramírez-Vélez R, Izquierdo M, García-Hermoso A. Association Between Physical Activity, Sedentary Behavior and Physical Fitness and Glycated Hemoglobin in Youth with Type 1 Diabetes: A Systematic Review and Meta-analysis. Sports Med 2023; 53:111-123. [PMID: 35922715 DOI: 10.1007/s40279-022-01741-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Scientific literature suggests poor glycemic control in youth with type 1 diabetes (T1D) and physical inactivity, sedentary behavior and low physical fitness levels, although results are not entirely consistent. OBJECTIVE To meta-analyze the association between glycated hemoglobin and physical activity, sedentary behavior, and physical fitness in children and adolescents with T1D. METHODS Our meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Guidelines (PRISMA). Three databases were searched for studies. All studies meeting the following criteria were included: (1) Population: children and adolescents with a mean age between 3 and 18 years diagnosed with T1D; (2) Exposition: physical activity and/or sedentary behavior and/or cardiorespiratory fitness and/or muscular fitness; (3) Outcome: glycated hemoglobin; (4) Study design: cross-sectional, longitudinal, and case-control studies. Pooled effects were calculated using a random effects inverse-variance model with the Hartung-Knapp-Sidik-Jonkman adjustment. RESULTS Thirty-seven studies were included, accounting for a total of 34,863 youths with T1D (51.9% girls). Twenty-nine studies evaluated physical activity, eight sedentary behavior, 14 cardiorespiratory fitness, and two muscular fitness. A negative association between physical activity (r = - 0.09, 95% CI - 0.14 to - 0.04; I2 = 63.5%), cardiorespiratory fitness (r = - 0.31, 95% CI - 0.44 to - 0.19; I2 = 57.0%) and glycated hemoglobin was found. Also, the association with sedentary behavior was positive (r = 0.20, 95% CI 0.04 to 0.35; I2 = 92.6%). All the associations were independent of the glycated hemoglobin levels and diabetes duration. CONCLUSIONS Low levels of physical activity and cardiorespiratory fitness and extensive sedentary behavior may explain part of the variance in glycated hemoglobin and part of the risk for poor glycemic control in youth with T1D. PROSPERO Registration number: CRD42021254362.
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Affiliation(s)
- Nidia Huerta-Uribe
- Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Robinson Ramírez-Vélez
- Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Mikel Izquierdo
- Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Antonio García-Hermoso
- Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain.
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Adolfsson P, Taplin CE, Zaharieva DP, Pemberton J, Davis EA, Riddell MC, McGavock J, Moser O, Szadkowska A, Lopez P, Santiprabhob J, Frattolin E, Griffiths G, DiMeglio LA. ISPAD Clinical Practice Consensus Guidelines 2022: Exercise in children and adolescents with diabetes. Pediatr Diabetes 2022; 23:1341-1372. [PMID: 36537529 PMCID: PMC10107219 DOI: 10.1111/pedi.13452] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 12/24/2022] Open
Affiliation(s)
- Peter Adolfsson
- Department of PediatricsKungsbacka HospitalKungsbackaSweden
- Institute of Clinical Sciences, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Craig E. Taplin
- Department of Endocrinology and DiabetesPerth Children's HospitalNedlandsWestern AustraliaAustralia
- Telethon Kids InstituteUniversity of Western AustraliaPerthWestern AustraliaAustralia
- Centre for Child Health ResearchUniversity of Western AustraliaPerthWestern AustraliaAustralia
| | - Dessi P. Zaharieva
- Division of Endocrinology, Department of PediatricsSchool of Medicine, Stanford UniversityStanfordCaliforniaUSA
| | - John Pemberton
- Department of Endocrinology and DiabetesBirmingham Women's and Children's HospitalBirminghamUK
| | - Elizabeth A. Davis
- Department of Endocrinology and DiabetesPerth Children's HospitalNedlandsWestern AustraliaAustralia
- Telethon Kids InstituteUniversity of Western AustraliaPerthWestern AustraliaAustralia
- Centre for Child Health ResearchUniversity of Western AustraliaPerthWestern AustraliaAustralia
| | | | - Jonathan McGavock
- Faculty of Kinesiology and Recreation ManagementUniversity of ManitobaWinnipegManitobaCanada
- Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) ThemeChildren's Hospital Research Institute of ManitobaWinnipegManitobaCanada
- Department of Pediatrics and Child HealthUniversity of ManitobaWinnipegManitobaCanada
- Diabetes Action Canada SPOR NetworkTorontoOntarioCanada
| | - Othmar Moser
- Division Exercise Physiology and Metabolism, Department of Sport ScienceUniversity of BayreuthBayreuthGermany
- Interdisciplinary Metabolic Medicine Trials Unit, Division of Endocrinology and Diabetology, Department of Internal MedicineMedical University of GrazGrazAustria
| | - Agnieszka Szadkowska
- Department of Pediatrics, Diabetology, Endocrinology & NephrologyMedical University of LodzLodzPoland
| | - Prudence Lopez
- Department of PaediatricsJohn Hunter Children's HospitalNewcastleNew South WalesAustralia
- University of NewcastleNewcastleNew South WalesAustralia
| | - Jeerunda Santiprabhob
- Siriraj Diabetes CenterFaculty of Medicine Siriraj Hospital, Mahidol UniversityBangkokThailand
- Division of Endocrinology and Metabolism, Department of PediatricsFaculty of Medicine Siriraj Hospital, Mahidol UniversityBangkokThailand
| | | | | | - Linda A. DiMeglio
- Department of Pediatrics, Division of Pediatric Endocrinology and DiabetologyIndiana University School of Medicine, Riley Hospital for ChildrenIndianapolisIndianaUSA
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Association of HbA1c with VO 2max in Individuals with Type 1 Diabetes: A Systematic Review and Meta-Analysis. Metabolites 2022; 12:metabo12111017. [PMID: 36355100 PMCID: PMC9697838 DOI: 10.3390/metabo12111017] [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: 09/17/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 11/17/2022] Open
Abstract
The aim of this systematic review and meta-analysis was to evaluate the association between glycemic control (HbA1c) and functional capacity (VO2max) in individuals with type 1 diabetes (T1DM). A systematic literature search was conducted in EMBASE, PubMed, Cochrane Central Register of Controlled Trials, and ISI Web of Knowledge for publications from January 1950 until July 2020. Randomized and observational controlled trials with a minimum number of three participants were included if cardio-pulmonary exercise tests to determine VO2max and HbA1c measurement has been performed. Pooled mean values were estimated for VO2max and HbA1c and weighted Pearson correlation and meta-regression were performed to assess the association between these parameters. We included 187 studies with a total of 3278 individuals with T1DM. The pooled mean HbA1c value was 8.1% (95%CI; 7.9−8.3%), and relative VO2max was 38.5 mL/min/kg (37.3−39.6). The pooled mean VO2max was significantly lower (36.9 vs. 40.7, p = 0.001) in studies reporting a mean HbA1c > 7.5% compared to studies with a mean HbA1c ≤ 7.5%. Weighted Pearson correlation coefficient was r = −0.19 (p < 0.001) between VO2max and HbA1c. Meta-regression adjusted for age and sex showed a significant decrease of −0.94 mL/min/kg in VO2max per HbA1c increase of 1% (p = 0.024). In conclusion, we were able to determine a statistically significant correlation between HbA1c and VO2max in individuals with T1DM. However, as the correlation was only weak, the association of HbA1c and VO2max might not be of clinical relevance in individuals with T1DM.
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Luo D, Wang Y, Cai X, Li R, Li M, Liu H, Xu J. Resilience Among Parents of Adolescents With Type 1 Diabetes: Associated With Fewer Parental Depressive Symptoms and Better Pediatric Glycemic Control. Front Psychiatry 2022; 13:834398. [PMID: 35492685 PMCID: PMC9043445 DOI: 10.3389/fpsyt.2022.834398] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/22/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Although pediatric resilience plays a significant role in resisting negative moods and improving glycaemic control, little research exists regarding resilience among the parents of adolescents with Type 1 diabetes. OBJECTIVE To investigate parental resilience's correlations with parental depressive symptoms, parental diabetes distress, and pediatric glycaemic control. METHODS This cross-sectional study recruited adolescents with Type 1 diabetes and their parents from two hospitals. The parents completed questionnaires. The 10-item Connor-Davidson Resilience Scale measured resilience; the Problem Areas in Diabetes Survey-Parent Revised version measured diabetes distress; the Patient Health Questionnaire-9 measured depressive symptoms. Standard glycated hemoglobin tests were performed on the adolescents. RESULTS Data from 224 parents (77.2% female, Mage = 39.88 [SD = 5.02], age range = 30-56 years) of adolescents (50.9% boys, Mage = 13.54 years [SD = 2.48], age range = 10-19 years) were available. More than half (52.7%) of parents exceeded the criterion score for high resilience. Parental resilience was significantly negatively associated with parental depressive symptoms and diabetes distress. Parents from the high-resilience group reported fewer depressive symptoms than those from the low-resilience group. In multivariate regressions, greater parental resilience is consistently related to better pediatric glycaemic control beyond parental psychological risk factors. CONCLUSIONS This study highlights the importance of parental resilience for parental mental health and glycaemic control among adolescents with Type 1 diabetes. The appropriate resilience support programme might be developed for parents, especially for those existing depressive symptoms and diabetes distress.
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Affiliation(s)
- Dan Luo
- School of Nursing, Nanjing University of Chinese Medicine, Jiangsu, China
| | - Yubing Wang
- Department of Endocrinology, Children's Hospital Affiliated to Nanjing Medical University, Jiangsu, China
| | - Xue Cai
- School of Nursing, Peking University, Beijing, China
| | - Ruxue Li
- School of Nursing, Peking University, Beijing, China
| | - Mingzi Li
- School of Nursing, Peking University, Beijing, China
| | - Haiyan Liu
- Department of Neurology, The Second Affiliated Hospital of Xuzhou Medical University, Jiangsu, China
| | - Jingjing Xu
- Department of Endocrinology, The First Affiliated Hospital With Nanjing Medical University (Jiangsu Province Hospital), Jiangsu, China
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Matejko B, Tota Ł, Mrozińska S, Morawska M, Pałka T, Kieć‐Wilk B, Klupa T, Malecki MT. Predictors of the maximal oxygen consumption in adult patients with type 1 diabetes treated with personal insulin pumps. J Diabetes Investig 2021; 12:1377-1385. [PMID: 33378577 PMCID: PMC8354502 DOI: 10.1111/jdi.13490] [Citation(s) in RCA: 2] [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] [Received: 06/02/2020] [Revised: 11/24/2020] [Accepted: 12/27/2020] [Indexed: 12/31/2022] Open
Abstract
AIMS/INTRODUCTION Regular physical activity for adults with type 1 diabetes mellitus improves cardiorespiratory fitness (CF) and quality of life. The aim of our study was to evaluate clinical and biochemical features that might be associated with CF in a homogenous group of adults with type 1 diabetes mellitus who are all treated with a personal insulin pump (continuous subcutaneous insulin infusion). MATERIALS AND METHODS We assessed CF in 62 patients (74.2% of whom were men) who fulfilled the eligibility criteria. To determine maximal oxygen consumption, the march-running test on the treadmill was carried out. Two hours before the test, the patients consumed a defined meal covered by a dose of rapid acting insulin analog that was reduced by 25% from their regular dose. Basal insulin infusion was reduced by 50% for an hour. Additionally, the Perceived Stress Scale-10 questionnaire was used to measure the perception of stress. RESULTS There was no episode of severe hypoglycemia during or after the test. In the final model, independent predictors of maximal oxygen consumption were sex, body fat percentage, lactate at 20 min after CF test and Perceived Stress Scale-10 score. Of interest, neither short-term (continuous glucose monitoring) nor long-term (glycosylated hemoglobin) metabolic control parameters were predictors of CF. CONCLUSIONS In our selected homogenous group of patients with type 1 diabetes mellitus treated with personal insulin pumps, higher CF was associated with a lower percentage of body fat, male sex, higher lactate level after the CF test and the Perceived Stress Scale-10 score. The proposed protocol in our cohort proved to be safe with regard to glycemic control.
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Affiliation(s)
- Bartłomiej Matejko
- Department of Metabolic DiseasesJagiellonian University Medical CollegeKrakowPoland
- University HospitalKrakowPoland
| | - Łukasz Tota
- Department of Physiology and BiochemistryFaculty of Physical Education and SportUniversity of Physical Education in KrakowKrakowPoland
| | | | - Małgorzata Morawska
- Department of Sports Medicine and Human NutritionFaculty of Physical Education and SportUniversity of Physical Education in KrakowKrakowPoland
| | - Tomasz Pałka
- Department of Physiology and BiochemistryFaculty of Physical Education and SportUniversity of Physical Education in KrakowKrakowPoland
| | - Beata Kieć‐Wilk
- Department of Metabolic DiseasesJagiellonian University Medical CollegeKrakowPoland
- University HospitalKrakowPoland
| | - Tomasz Klupa
- Department of Metabolic DiseasesJagiellonian University Medical CollegeKrakowPoland
- University HospitalKrakowPoland
| | - Maciej T Malecki
- Department of Metabolic DiseasesJagiellonian University Medical CollegeKrakowPoland
- University HospitalKrakowPoland
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Shah VN, Grimsmann JM, Foster NC, Dost A, Miller KM, Pavel M, Weinstock RS, Karges W, Maahs DM, Holl RW. Undertreatment of cardiovascular risk factors in the type 1 diabetes exchange clinic network (United States) and the prospective diabetes follow-up (Germany/Austria) registries. Diabetes Obes Metab 2020; 22:1577-1585. [PMID: 32329127 DOI: 10.1111/dom.14069] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 12/15/2022]
Abstract
AIM To examine the control of cardiovascular risk factors in type 1 diabetes (T1D) registries from the United States and Germany/Austria. MATERIALS AND METHODS Data on individuals aged ≥12 years with T1D for ≥1 year, from the T1D Exchange Clinic Network (T1DX, United States) and the Prospective Diabetes Follow-up Registry (DPV, Germany/Austria) from 1 January 2016 to 31 March 2018 were analysed. Linear and logistic regression models adjusted for age groups, sex, duration of diabetes and minority status were used to compare clinical characteristics and achievement of diabetes management targets between registries. RESULTS The cohort consisted of 47 936 patients (T1DX, n = 19 442; DPV, n = 28 494). Achievement of HbA1c goals (<7.0%, ages 18-65 years; all others, <7.5%) was better in the DPV for those aged <65 years (all P < .001). However, more older adults (aged ≥65 years) in the T1DX achieved an HbA1c goal of <7.5% compared with DPV (70% vs. 50%, P < .001). The frequency of patients with overweight (53% vs. 51%, P < .001) and obesity (19% vs. 9%, P < .001) was higher in T1DX. The frequency of meeting blood pressure goals (84% vs. 66%, P < .001) and lipid goals (73% vs. 62%, P < .001) was higher in T1DX; this was observed across all age groups (all P < .001). Few young adults aged <26 years received antihypertensive and lipid-lowering medications, respectively, despite indications in both registries (T1DX: 5% and 3%, DPV: 3% and 1%). CONCLUSION A minority of patients with T1D achieve glycaemic targets and the majority are inadequately treated for hypertension and dyslipidaemia. This highlights the need for improved diabetes and cardiovascular risk management strategies in T1D.
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Affiliation(s)
- Viral N Shah
- Barbara Davis Center for Diabetes, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Julia M Grimsmann
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | | | - Axel Dost
- Department of Pediatrics, University Hospital Jena, Jena, Germany
| | | | - Marianne Pavel
- Department of Internal Medicine, University of Erlangen, Erlangen, Germany
| | - Ruth S Weinstock
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, SUNY Upstate Medical University, Syracuse, New York
| | - Wolfram Karges
- Department of Internal Medicine, University of Aachen, Aachen, Germany
| | - David M Maahs
- Department of Pediatrics, School of Medicine, Stanford University, Stanford, California
- Stanford Diabetes Research Center, Stanford University, Stanford, California
| | - Reinhard W Holl
- Institute for Epidemiology and Medical Biometry, ZIBMT, University of Ulm, Ulm, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
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Abstract
PURPOSE OF REVIEW Individuals with type 1 diabetes (T1D) have excess cardiovascular risk and reduced life expectancy. Adolescence is the time when the first signs of vascular complications appear and a critical window for interventions. This article reviews recent evidence on cardiometabolic risk factors and their management in youth with T1D. RECENT FINDINGS Adolescents with T1D show early signs of vascular complications, as a result of several cardiometabolic risk factors. Poor glycemic control is one of the main risk factors and the main target of treatment. However, only a minority of adolescents with T1D reaches recommended targets for glycemic control. Hypertension, dyslipidemia, smoking, alcohol use, obesity and insulin resistance are other common cardiometabolic risk factors in this age group. Recent data confirm that screening for these risk factors is suboptimal and use of pharmacological interventions for hypertension and dyslipidemia remains low. Data on adjunctive noninsulin agents to improve glycemic control and other cardiometabolic risk factors are still lacking in this age group. SUMMARY Vascular complications and the associated mortality remain a major issue for youth with T1D. Better screening strategies for cardiometabolic risk factors and interventions are required to improve the long-term prognosis of youth with T1D.
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Xia C, Liu C, He Z, Cai Y, Chen J. Metformin inhibits cervical cancer cell proliferation by modulating PI3K/Akt-induced major histocompatibility complex class I-related chain A gene expression. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:127. [PMID: 32631421 PMCID: PMC7336474 DOI: 10.1186/s13046-020-01627-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/21/2020] [Indexed: 02/07/2023]
Abstract
Background Recent studies have shown that the classic hypoglycemic drug metformin inhibits tumor growth; however, the underlying mechanism remains unclear. We previously showed that metformin disrupts the sponge effect of long non-coding RNA MALAT1/miR-142-3p to inhibit cervical cancer cell proliferation. In this study, we interrogated the ability of metformin to modulate the anti-tumor immune response in cervical cancer. Methods The cell counting kit-8 assay was used to detect the viability of cervical cancer cells. Flow cytometry assays were performed to measure cell apoptosis and cell cycle. Lactate dehydrogenase (LDH) cytotoxicity assay was used to detect NK Cell Cytotoxicity. Relative protein levels were determined by immunoblotting and relative gene levels were determined by quantitative real-time PCR. Tumor Xenograft Modeling was used to evaluate the effect of metformin in vivo. Results Metformin inhibited cervical cancer cell proliferation, cervical cancer xenograft growth, expression of PCNA, p-PI3K and p-Akt. Moreover metformin induced cervical cancer cell apoptosis and caused cancer cell cycle arrest. In addition, metformin upregulated the expression of DDR-1 and p53 in human cervical cancer cells. Furthermore, metformin also regulated the mRNA and protein expression of MICA and HSP70 on the surface of human cervical cancer cells via the PI3K/Akt pathway, enhancing NK cell cytotoxicity. Conclusions In conclusion, our results suggest that metformin may be used as immunopotentiator to inhibit cervical cancer progression and may be considered a viable candidate for combination therapy with immunotherapy.
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Affiliation(s)
- Chenglai Xia
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China. .,School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510150, China.
| | - Chang Liu
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China.,Foshan Women and Child hospital, Foshan, 528000, China
| | - Zhihong He
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China.,Foshan Women and Child hospital, Foshan, 528000, China
| | - Yantao Cai
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China.,Foshan Women and Child hospital, Foshan, 528000, China
| | - Jinman Chen
- South Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, China.,Foshan Women and Child hospital, Foshan, 528000, China
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Kaur H, Joshee P, Franquemont S, Baumgartner A, Thurston J, Pyle L, Nadeau KJ, Shah VN. Bone mineral content and bone density is lower in adolescents with type 1 diabetes: A brief report from the RESISTANT and EMERALD studies. J Diabetes Complications 2018; 32:931-933. [PMID: 29980432 PMCID: PMC6908302 DOI: 10.1016/j.jdiacomp.2018.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 10/28/2022]
Abstract
To understand the effect of type 1 diabetes (T1D) on bone mineral content (BMC) and bone density (BMD), we studied 125 T1D adolescents and 80 pubertal stage matched controls. T1D was associated with lower whole-body BMC and BMD compared to controls, even when adjusted for age, sex and sex hormones.
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Affiliation(s)
- Harsahiba Kaur
- Barbara Davis Center for Diabetes, School of Medicine, University of Colorado Anschutz Medical Campus, 1775 Aurora Ct, Aurora, CO 80045, United States of America
| | - Prakriti Joshee
- Barbara Davis Center for Diabetes, School of Medicine, University of Colorado Anschutz Medical Campus, 1775 Aurora Ct, Aurora, CO 80045, United States of America
| | - Stephanie Franquemont
- Rocky Vista University College of Osteopathic Medicine, 8401 S Chambers Rd, Parker, CO 80134, United States of America
| | - Amy Baumgartner
- University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, United States of America
| | - Jessica Thurston
- Department of Pediatrics, School of Medicine, Department of Biostatistics and Informatics, Colorado School of Public Health, 13001 E. 17th Place Mail Stop B119, Aurora, CO 80045, United States of America
| | - Laura Pyle
- Department of Pediatrics, School of Medicine, Department of Biostatistics and Informatics, Colorado School of Public Health, 13001 E. 17th Place Mail Stop B119, Aurora, CO 80045, United States of America
| | - Kristen J Nadeau
- University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, United States of America; Division of Pediatric Endocrinology, Department of Pediatrics, Children's Hospital Colorado, Aurora, CO, United States of America
| | - Viral N Shah
- Barbara Davis Center for Diabetes, School of Medicine, University of Colorado Anschutz Medical Campus, 1775 Aurora Ct, Aurora, CO 80045, United States of America; University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, United States of America.
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Liu W, Yang XJ. The Effect of Metformin on Adolescents with Type 1 Diabetes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Int J Endocrinol 2016; 2016:3854071. [PMID: 27478438 PMCID: PMC4960345 DOI: 10.1155/2016/3854071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/21/2016] [Accepted: 06/05/2016] [Indexed: 02/08/2023] Open
Abstract
Background. The effect of metformin in combination with insulin in adolescents with type 1 diabetes (T1DM) is controversial. Methods and Results. The PubMed and EMBASE online databases were searched. Five double-blind randomized controlled trials (RCTs) that included 301 adolescents with T1DM were identified. Metformin plus insulin was associated with reduced hemoglobin A1C levels, total daily insulin dosage, body mass index (BMI), and body weight. However, the subgroup analysis demonstrated that HbA1c levels were not significantly changed in overweight/obese adolescents and were significantly reduced in the general patients. On the contrary, BMI and body weight were significantly reduced in overweight/obese adolescents but not in the general patients. Metformin was associated with higher incidence of adverse events. Conclusions. Among adolescents with T1DM, administering adjunctive metformin therapy in addition to insulin was associated with improved HbA1c levels, total daily insulin dosage, BMI, and body weight. However, there may be differences in the effects of this regimen between overweight/obese and nonobese adolescents. The risk of an adverse event may be increased with metformin treatment. These results provide strong evidence supporting future high-quality, large-sample trials.
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Affiliation(s)
- Wei Liu
- Department of Cardiology, Guizhou Provincial People's Hospital, Guizhou 550002, China
| | - Xiao-Jie Yang
- Department of Endocrinology, Guizhou Provincial People's Hospital, Guizhou 550002, China
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