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1.
J Clin Endocrinol Metab ; 109(5): 1361-1370, 2024 Apr 19.
Article in English | MEDLINE | ID: mdl-37967247

ABSTRACT

OBJECTIVE: Elevated rates of gluconeogenesis are an early pathogenic feature of youth-onset type 2 diabetes (Y-T2D), but targeted first-line therapies are suboptimal, especially in African American (AA) youth. We evaluated glucose-lowering mechanisms of metformin and liraglutide by measuring rates of gluconeogenesis and ß-cell function after therapy in AA Y-T2D. METHODS: In this parallel randomized clinical trial, 22 youth with Y-T2D-age 15.3 ± 2.1 years (mean ± SD), 68% female, body mass index (BMI) 40.1 ± 7.9 kg/m2, duration of diagnosis 1.8 ± 1.3 years-were randomized to metformin alone (Met) or metformin + liraglutide (Lira) (Met + Lira) and evaluated before and after 12 weeks. Stable isotope tracers were used to measure gluconeogenesis [2H2O] and glucose production [6,6-2H2]glucose after an overnight fast and during a continuous meal. ß-cell function (sigma) and whole-body insulin sensitivity (mSI) were assessed during a frequently sampled 2-hour oral glucose tolerance test. RESULTS: At baseline, gluconeogenesis, glucose production, and fasting and 2-hour glucose were comparable in both groups, though Met + Lira had higher hemoglobin A1C. Met + Lira had a greater decrease from baseline in fasting glucose (-2.0 ± 1.3 vs -0.6 ± 0.9 mmol/L, P = .008) and a greater increase in sigma (0.72 ± 0.68 vs -0.05 ± 0.71, P = .03). The change in fractional gluconeogenesis was similar between groups (Met + Lira: -0.36 ± 9.4 vs Met: 0.04 ± 12.3%, P = .9), and there were no changes in prandial gluconeogenesis or mSI. Increased glucose clearance in both groups was related to sigma (r = 0.63, P = .003) but not gluconeogenesis or mSI. CONCLUSION: Among Y-T2D, metformin with or without liraglutide improved glycemia but did not suppress high rates of gluconeogenesis. Novel therapies that will enhance ß-cell function and target the elevated rates of gluconeogenesis in Y-T2D are needed.

2.
Nutrients ; 15(18)2023 Sep 05.
Article in English | MEDLINE | ID: mdl-37764650

ABSTRACT

Low-calorie sweeteners (LCS) are commonly consumed by children with type 1 diabetes (T1D), yet their role in cardiometabolic health is unclear. This study examined the feasibility, acceptability, and preliminary effects of 12 weeks of LCS restriction among children with T1D. Children (n = 31) with T1D completed a two-week run-in (n = 28) and were randomly assigned to avoid LCS (LCS restriction, n = 15) or continue their usual LCS intake (n = 13). Feasibility was assessed using recruitment, retention, and adherence rates percentages. Acceptability was assessed through parents completing a qualitative interview (subset, n = 15) and a satisfaction survey at follow-up. Preliminary outcomes were between-group differences in change in average daily time-in-range (TIR) over 12 weeks (primary), and other measures of glycemic variability, lipids, inflammatory biomarkers, visceral adiposity, and dietary intake (secondary). Linear regression, unadjusted and adjusted for age, sex, race, and change in BMI, was used to compare mean changes in all outcomes between groups. LCS restriction was feasible and acceptable. No between-group differences in change in TIR or other measures of glycemic variability were observed. However, significant decreases in TNF-alpha (-0.23 ± 0.08 pg/mL) and improvements in cholesterol (-0.31 ± 0.18 mmol/L) and LDL (-0.60 ± 0.39 mmol/L) were observed with usual LCS intake, compared with LCS restriction. Those randomized to LCS restriction did not report increases in total or added sugar intake, and lower energy intake was reported in both groups (-190.8 ± 106.40 kcal LCS restriction, -245.3 ± 112.90 kcal usual LCS intake group). Decreases in percent energy from carbohydrates (-8.5 ± 2.61) and increases in percent energy from protein (3.2 ± 1.16) and fat (5.2 ± 2.02) were reported with usual LCS intake compared with LCS restriction. Twelve weeks of LCS restriction did not compromise glycemic variability or cardiometabolic outcomes in this small sample of youth with T1D. Further examination of LCS restriction among children with T1D is warranted.

4.
J Pediatr Psychol ; 48(5): 490-501, 2023 05 20.
Article in English | MEDLINE | ID: mdl-36888882

ABSTRACT

OBJECTIVE: A central part of family adjustment to a new diagnosis of type 1 diabetes (T1D) is integrating T1D management into the child's school/daycare. This may be particularly challenging for young children who rely on adults for their diabetes management. This study aimed to describe parent experiences with school/daycare during the first 1.5 years following a young child's T1D diagnosis. METHODS: As part of a randomized controlled trial of a behavioral intervention, 157 parents of young children with new-onset (<2 months) T1D reported on their child's school/daycare experience at baseline and at 9- and 15-month post-randomization. We used a mixed-methods design to describe and contextualize parents' experiences with school/daycare. Qualitative data were collected via open-ended responses, and quantitative data were collected from a demographic/medical from. RESULTS: While most children were enrolled in school/daycare at all time points, over 50% of parents endorsed that T1D affected their child's enrollment, rejection, or removal from school/daycare at 9 or 15 months. We generated five themes related to parents' school/daycare experiences: Child factors, Parent factors, School/Daycare factors, Cooperation between Parents and Staff, and Socio-historical factors. Parents of younger children and those with lower subjective socioeconomic status were significantly more likely to endorse challenges with school/daycare enrollment. CONCLUSIONS: School/daycare settings present challenges for parents of young children with T1D. Changes may need to occur across contexts to support early childhood education, including advocacy resources for parents to navigate school policies, increased training for school staff, and healthcare team outreach initiatives to parents and schools.


Subject(s)
Diabetes Mellitus, Type 1 , Adult , Child , Child, Preschool , Humans , Diabetes Mellitus, Type 1/diagnosis , Diabetes Mellitus, Type 1/therapy , Parents , Schools , Social Class , Students
6.
N Engl J Med ; 387(13): 1161-1172, 2022 09 29.
Article in English | MEDLINE | ID: mdl-36170500

ABSTRACT

BACKGROUND: Currently available semiautomated insulin-delivery systems require individualized insulin regimens for the initialization of therapy and meal doses based on carbohydrate counting for routine operation. In contrast, the bionic pancreas is initialized only on the basis of body weight, makes all dose decisions and delivers insulin autonomously, and uses meal announcements without carbohydrate counting. METHODS: In this 13-week, multicenter, randomized trial, we randomly assigned in a 2:1 ratio persons at least 6 years of age with type 1 diabetes either to receive bionic pancreas treatment with insulin aspart or insulin lispro or to receive standard care (defined as any insulin-delivery method with unblinded, real-time continuous glucose monitoring). The primary outcome was the glycated hemoglobin level at 13 weeks. The key secondary outcome was the percentage of time that the glucose level as assessed by continuous glucose monitoring was below 54 mg per deciliter; the prespecified noninferiority limit for this outcome was 1 percentage point. Safety was also assessed. RESULTS: A total of 219 participants 6 to 79 years of age were assigned to the bionic-pancreas group, and 107 to the standard-care group. The glycated hemoglobin level decreased from 7.9% to 7.3% in the bionic-pancreas group and did not change (was at 7.7% at both time points) in the standard-care group (mean adjusted difference at 13 weeks, -0.5 percentage points; 95% confidence interval [CI], -0.6 to -0.3; P<0.001). The percentage of time that the glucose level as assessed by continuous glucose monitoring was below 54 mg per deciliter did not differ significantly between the two groups (13-week adjusted difference, 0.0 percentage points; 95% CI, -0.1 to 0.04; P<0.001 for noninferiority). The rate of severe hypoglycemia was 17.7 events per 100 participant-years in the bionic-pancreas group and 10.8 events per 100 participant-years in the standard-care group (P = 0.39). No episodes of diabetic ketoacidosis occurred in either group. CONCLUSIONS: In this 13-week, randomized trial involving adults and children with type 1 diabetes, use of a bionic pancreas was associated with a greater reduction than standard care in the glycated hemoglobin level. (Funded by the National Institute of Diabetes and Digestive and Kidney Diseases and others; ClinicalTrials.gov number, NCT04200313.).


Subject(s)
Diabetes Mellitus, Type 1 , Hypoglycemic Agents , Insulin Aspart , Insulin Infusion Systems , Insulin Lispro , Adolescent , Adult , Aged , Bionics/instrumentation , Blood Glucose/analysis , Blood Glucose Self-Monitoring/instrumentation , Blood Glucose Self-Monitoring/methods , Child , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/drug therapy , Glycated Hemoglobin/analysis , Humans , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/adverse effects , Hypoglycemic Agents/therapeutic use , Insulin/administration & dosage , Insulin/adverse effects , Insulin/therapeutic use , Insulin Aspart/administration & dosage , Insulin Aspart/adverse effects , Insulin Aspart/therapeutic use , Insulin Infusion Systems/adverse effects , Insulin Lispro/administration & dosage , Insulin Lispro/adverse effects , Insulin Lispro/therapeutic use , Middle Aged , Young Adult
7.
Sci Diabetes Self Manag Care ; 48(6): 522-532, 2022 12.
Article in English | MEDLINE | ID: mdl-36154537

ABSTRACT

PURPOSE: The purpose of this study was to understand impacts of the coronavirus (COVID-19) pandemic on pediatric type 1 diabetes management. METHODS: In-depth qualitative interviews were conducted with 15 parents of children (age 6-12 years) with type 1 diabetes. Parents responded to 8 open-ended questions about their experiences managing their children's type 1 diabetes during the COVID-19 pandemic. All interviews were transcribed, coded, and analyzed using qualitative thematic methods. RESULTS: Parents reported both positive and negative aspects of managing their children's type 1 diabetes during the COVID-19 pandemic. Facilitators of diabetes management included spending more time together at home and enhanced convenience of telehealth appointments and online supply ordering. Parents also described difficulties managing their children's type 1 diabetes during the COVID-19 pandemic, including a lack of structure in their child's daily routine, which led to increases in sedentary behavior. Furthermore, they reported psychosocial challenges of type 1 diabetes management, which were exacerbated by the pandemic. CONCLUSION: While the COVID-19 pandemic was described as having overall positive impacts on pediatric type 1 diabetes management, efforts to support parents in increasing children's physical activity and reducing screen time are needed, along with readily accessible mental health resources for both parents and their children with type 1 diabetes.


Subject(s)
COVID-19 , Diabetes Mellitus, Type 1 , Humans , Child , COVID-19/epidemiology , Pandemics , Diabetes Mellitus, Type 1/epidemiology , Qualitative Research , Parents/psychology
8.
Diabetes Technol Ther ; 24(10): 712-725, 2022 10.
Article in English | MEDLINE | ID: mdl-36173237

ABSTRACT

Objective: To evaluate the insulin-only configuration of the iLet® bionic pancreas (BP) in youth 6-17 years old with type 1 diabetes (T1D). Research Design and Methods: In this multicenter, randomized, controlled trial, 165 youth with T1D (6-17 years old; baseline HbA1c 5.8%-12.2%; 35% using multiple daily injections, 36% using an insulin pump without automation, 4% using an insulin pump with low glucose suspend, and 25% using a hybrid closed-loop system before the study) were randomly assigned 2:1 to use BP (n = 112) with insulin aspart or insulin lispro (BP group) or to a control group (n = 53) using their personal standard care insulin delivery (SC group) plus real-time continuous glucose monitoring (CGM). The primary outcome was HbA1c at 13 weeks. Results: Mean HbA1c decreased from 8.1% ± 1.2% at baseline to 7.5% ± 0.7% at 13 weeks with BP versus 7.8% ± 1.1% at both baseline and 13 weeks with SC (adjusted difference = -0.5%, 95% CI -0.7% to -0.2%, P < 0.001). Participants with baseline HbA1c ≥9.0% (n = 34) decreased mean HbA1c from 9.7% ± 0.8% to 7.9% ± 0.6% after 13 weeks with BP compared with 9.7% ± 0.5% to 9.8% ± 0.8% with SC. Over 13 weeks, mean time in range (TIR) 70-180 mg/dL increased by 10% (2.4 h per day) and mean CGM glucose was reduced by 15 mg/dL with BP compared with SC (P < 0.001). Analyses of time >180 mg/dL, time >250 mg/dL, and standard deviation of CGM glucose favored BP (P < 0.001). Time <54 mg/dL was low at baseline (median 0.2%) and not significantly different between groups over 13 weeks (P = 0.24). A severe hypoglycemia event occurred in 3 (2.7%) participants in the BP group and in 1 (1.9%) in the SC group. Conclusions: In youth 6-17 years old with T1D, use of insulin-only configuration of BP improved HbA1c, TIR, and hyperglycemic metrics without increasing CGM-measured hypoglycemia compared with standard of care. Improvement in glycemic metrics was most pronounced in participants with high baseline HbA1c levels. Clinical Trial Registry: clinicaltrials.gov; NCT04200313.


Subject(s)
Diabetes Mellitus, Type 1 , Hypoglycemia , Adolescent , Bionics , Blood Glucose/analysis , Blood Glucose Self-Monitoring , Child , Diabetes Mellitus, Type 1/drug therapy , Glycated Hemoglobin/analysis , Humans , Hypoglycemia/chemically induced , Hypoglycemia/prevention & control , Hypoglycemic Agents/therapeutic use , Insulin/therapeutic use , Insulin Aspart/therapeutic use , Insulin Infusion Systems , Insulin Lispro/therapeutic use , Insulin, Regular, Human/therapeutic use , Pancreas
9.
Diabetes Care ; 45(10): 2238-2246, 2022 10 01.
Article in English | MEDLINE | ID: mdl-35997261

ABSTRACT

OBJECTIVE: Despite the emotional challenges of parental adjustment to a child's type 1 diabetes diagnosis and the unique complexities of early childhood, there are few programs designed to meet the needs of parents of young children at new onset. This study evaluated First STEPS (Study of Type 1 in Early childhood and Parenting Support), a stepped-care behavioral intervention designed to support parents' psychosocial functioning and promote children's glycemic outcomes. RESEARCH DESIGN AND METHODS: Using a two-site randomized clinical trial design, parents (n = 157) of children aged 1-6 years completed baseline data within 2 months of diabetes diagnosis and were randomly assigned to intervention (n = 115) or usual care (n = 42) for 9 months. Intervention steps included: 1) peer parent coaching, with step-ups to 2) structured behavioral counseling and 3) professional consultations with a diabetes educator and psychologist, based on parent mood and child HbA1c. Participants completed follow-ups at 9 and 15 months postrandomization. Primary outcomes were parent depressive symptoms and child HbA1c. RESULTS: Depressive symptoms improved in both groups, and intervention parents had significantly lower depressive symptoms at the 9- and 15-month follow-ups compared with usual care. HbA1c decreased in both groups, but there were no between-group differences at 9 or 15 months. CONCLUSIONS: First STEPS improved parents' mood following young children's type 1 diabetes diagnosis. Results indicate likely benefits of parent coach support, supplemented by intervention intensifications, including behavioral intervention and diabetes education. This model has high potential for patient engagement. The absence of a medical intervention component may explain null findings for HbA1c; incorporating targeted behavioral support for intensive diabetes treatment may maximize intervention impact.


Subject(s)
Diabetes Mellitus, Type 1 , Behavior Therapy , Child , Child, Preschool , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Glycated Hemoglobin , Humans , Infant , Parenting/psychology , Parents/psychology
10.
Fam Syst Health ; 40(2): 239-251, 2022 06.
Article in English | MEDLINE | ID: mdl-35666897

ABSTRACT

OBJECTIVE: Nutrition and physical activity are key components of daily diabetes care in young children with type I diabetes (T1D). Normative developmental behavioral challenges related to nutrition and physical activity complicate management of T1D. The current pilot study evaluated the feasibility, acceptability, and indications of behavior change of an intervention aimed at improving nutrition and physical activity in young children with T1D. METHOD: Thirty-6 parents of young children (ages 2-5 years, M = 4.2) with T1D from 2 clinics in the Washington, DC area were randomized to receive the type One Training (TOTs) program or Usual Care (UC). Assessments included recruitment and completion rates, participant acceptability, and outcomes including glycemic variability via continuous glucose monitoring, nutritional intake via remote food photography, physical activity via accelerometers, and parental report on behavior and psychosocial functioning. RESULTS: Despite recruitment challenges, the TOTs program was feasible to administer, with high program and assessment completion rates. Acceptability ratings were very high but differed by recruitment site. Participants randomized to TOTs had an increase in percent of time in target glycemic range and reduction in behavioral feeding problems between baseline and follow-up while those randomized to UC did not. Participants in UC demonstrated a decrease in in moderate to vigorous physical activity at follow-up. CONCLUSIONS: The TOTs program demonstrated preliminary feasibility and acceptability. Future research will examine components of treatment for evidence of efficacy and target the intervention to those most likely to benefit. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Subject(s)
Diabetes Mellitus, Type 1 , Blood Glucose , Blood Glucose Self-Monitoring , Child, Preschool , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Glycemic Control , Humans , Parents/psychology , Pilot Projects
11.
Article in English | MEDLINE | ID: mdl-35763327

ABSTRACT

The publisher of Diabetes Technologies & Therapeutics officially withdraws the Just Accepted version of the article entitled, "Positive Impact of the Bionic Pancreas on Diabetes Control in Youth 6-17 Years Old with Type 1 Diabetes: A Multicenter Randomized Trial," by Laurel H Messer, et al. (epub 28 Jun 2022; DOI: 10.1089/dia.2022.0201) due to its erroneous release before being finalized. The correct version will be republished in due course. The publisher extends its sincerest apologies to the authors of the article and to the journal's readership for this regrettable mishap.

12.
Contemp Clin Trials ; 106: 106431, 2021 07.
Article in English | MEDLINE | ID: mdl-33974993

ABSTRACT

BACKGROUND: Low-calorie sweeteners (LCSs) provide sweetness without sugar or calories and are used to replace added sugars by many children with type 1 diabetes (T1D). However, the role of LCSs in diabetes management and cardiometabolic health is unclear. OBJECTIVE: The Diabetes Research in Kids Study (DRINK-T1D) aims to investigate effects of LCS restriction on glycemic variability, visceral adiposity, lipid profiles, and systemic inflammation among children 6-12 years old with T1D. METHODS: Children with T1D, who report habitual consumption of foods and beverages containing LCSs, are recruited from the Washington Nationals Diabetes Care Complex (DCC) at Children's National Hospital (CNH) in Washington, DC. Following a phone screening and two-week run-in period involving continuation of usual LCS intake, children are randomized to 12 weeks of LCS restriction (replacement of diet beverages with still or sparkling water and avoidance of other sources of LCSs) or continued usual LCS intake (control). The primary outcome is the difference in change in glycemic variability in the LCS restriction group versus the control group. Change in glycemic variability will be assessed as the difference in daily average time-in-range (TIR), measured using continuous glucose monitoring (CGM) during two weeks at the end of the 12-week intervention, compared with during the two-week run-in period prior to randomization. Participants also complete a variety of anthropometric, metabolic, dietary, and behavioral assessments throughout the 14-week study. CONCLUSIONS: DRINK-T1D is an innovative, randomized controlled trial, evaluating effects of LCS restriction on glycemic variability and cardiometabolic health in children with T1D. Findings of DRINK-T1D will support or challenge the common practice of recommending LCS use in this patient population and will have clinically relevant implications for pediatric T1D management. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT04385888.


Subject(s)
Diabetes Mellitus, Type 1 , Blood Glucose , Blood Glucose Self-Monitoring , Child , Energy Intake , Humans , Sweetening Agents
13.
Pediatr Diabetes ; 22(2): 182-191, 2021 03.
Article in English | MEDLINE | ID: mdl-33179823

ABSTRACT

OBJECTIVES: Metformin is the only oral therapy for youth with type 2 diabetes, but up to 50% require additional agents within 2 years of diagnosis. Extended-release (XR) metformin formulations may improve adherence and tolerability-important mediators of treatment response-but data in youth is lacking. To evaluate rates of gastrointestinal (GI) symptoms in patients treated with metformin (SR and XR) and the change in GI symptoms after changes in metformin therapy. RESEARCH DESIGN AND METHODS: Retrospective chart review of youth with Type 2 or prediabetes seen in a multidisciplinary clinic during 2016-2019. RESULTS: Of 488 eligible patients, 41.4% and 21.1% were taking metformin SR and XR respectively, with most (58%, n = 178/305) taking a total daily dose of ≥1500 mg/day. Those not on metformin tended to be younger, leaner, and had lower HbA1cs than those taking metformin, p < 0.05. Thirty percentage of patients described GI symptoms, most commonly, abdominal pain and diarrhea. There was no difference in GI symptoms in those on SR versus XR (18.3% vs. 14.6%, p = 0.41). Among patients who initiated metformin, rates of GI symptoms increased (13%-33%, p = 0.001, n = 99), while rates tended to decrease when metformin was discontinued (28%-12%, p = 0.076, n = 50). Rates of GI symptoms were unchanged among those that switched from SR to XR metformin (17% vs. 14%, p = 0.6, n = 58). CONCLUSIONS: GI symptoms are common in youth with type 2 diabetes taking metformin XR and SR. Adjuncts to mitigate GI symptoms in youth on metformin therapy are needed to improve quality of life and medication adherence.


Subject(s)
Diabetes Mellitus, Type 2/drug therapy , Gastrointestinal Diseases/chemically induced , Hypoglycemic Agents/adverse effects , Metformin/adverse effects , Prediabetic State/drug therapy , Adolescent , Cross-Sectional Studies , Delayed-Action Preparations , Female , Gastrointestinal Diseases/epidemiology , Humans , Hypoglycemic Agents/administration & dosage , Male , Medication Adherence , Metformin/administration & dosage , Prevalence , Retrospective Studies , Tertiary Healthcare
14.
Clin Diabetes ; 38(4): 412-415, 2020 Oct.
Article in English | MEDLINE | ID: mdl-33132514
15.
Diabetologia ; 63(10): 2194-2204, 2020 10.
Article in English | MEDLINE | ID: mdl-32728891

ABSTRACT

AIMS/HYPOTHESIS: Metformin is the only approved oral agent for youth with type 2 diabetes but its mechanism of action remains controversial. Recent data in adults suggest a primary role for the enteroinsular pathway, but there are no data in youth, in whom metformin efficacy is only ~50%. Our objectives were to compare incretin concentrations and rates of glucose production and gluconeogenesis in youth with type 2 diabetes before and after short-term metformin therapy compared with peers with normal glucose tolerance (NGT). METHODS: This is a case-control observational study in youth with type 2 diabetes who were not on metformin (n = 18) compared with youth with NGT (n = 10) who were evaluated with a 2 day protocol. A 75 g OGTT was administered to measure intact glucagon-like 1 peptide (iGLP-1), gastric inhibitory polypeptide (GIP) and peptide YY (PYY). Insulinogenic index (IGI) and whole-body insulin sensitivity were calculated using glucose and insulin levels from the OGTT. Basal rates of gluconeogenesis (2H2O), glucose production ([6,6-2H2]glucose) and whole-body lipolysis ([2H5]glycerol) were measured after an overnight fast on study day 2. Youth with type 2 diabetes (n = 9) were subsequently evaluated with an identical 2 day protocol after 3 months on the metformin study. RESULTS: Compared with individuals with NGT, those with type 2 diabetes had higher fasting (7.8 ± 2.5 vs 5.1 ± 0.3 mmol/l, mean ± SD p = 0.002) and 2 h glucose concentrations (13.8 ± 4.5 vs 5.9 ± 0.9 mmol/l, p = 0.001), higher rates of absolute gluconeogenesis (10.0 ± 1.7 vs 7.2 ± 1.1 µmol [kg fat-free mass (FFM)]-1 min-1, p < 0.001) and whole-body lipolysis (5.2 ± 0.9 vs 4.0 ± 1.4 µmol kgFFM-1 min-1, p < 0.01), but lower fasting iGLP-1 concentrations (0.5 ± 0.5 vs 1.3 ± 0.7 pmol/l, p < 0.01). Metformin decreased 2 h glucose (pre metformin 11.4 ± 2.8 vs post metformin 9.9 ± 1.9 mmol/l, p = 0.04) and was associated with ~20-50% increase in IGI (median [25th-75th percentile] pre 1.39 [0.89-1.47] vs post 1.43 [0.88-2.70], p = 0.04), fasting iGLP-1 (pre 0.3 ± 0.2 vs post 1.0 ± 0.7 pmol/l, p = 0.02), 2 h iGLP (pre 0.4 ± 0.2 vs post 1.2 ± 0.9 pmol/l, p = 0.06), fasting PYY (pre 6.3 ± 2.2 vs post 10.5 ± 4.3 pmol/l, p < 0.01) and 2 h PYY (pre 6.6 ± 2.9 vs post 9.0 ± 4.0 pmol/l, p < 0.01). There was no change in BMI, insulin sensitivity or GIP concentrations pre vs post metformin. There were no differences pre vs post metformin in rates of glucose production (15.0 ± 3.9 vs 14.9 ± 2.2 µmol kgFFM-1 min-1, p = 0.84), absolute gluconeogenesis (9.9 ± 1.8 vs 9.7 ± 1.7 µmol kgFFM-1 min-1, p = 0.76) or whole-body lipolysis (5.0 ± 0.7 vs 5.3 ± 1.3 µmol kgFFM-1 min-1, p = 0.20). Post metformin iGLP-1 and PYY concentrations in youth with type 2 diabetes were comparable to levels in youth with NGT. CONCLUSIONS/INTERPRETATION: Overall, the improved postprandial blood glucose levels and increase in incretins observed in the absence of changes in insulin sensitivity and gluconeogenesis, support an enteroinsular mechanistic pathway in youth with type 2 diabetes treated with short-term metformin.


Subject(s)
Diabetes Mellitus, Type 2/drug therapy , Gluconeogenesis , Hypoglycemic Agents/therapeutic use , Incretins/metabolism , Metformin/therapeutic use , Adolescent , Case-Control Studies , Child , Deuterium Oxide , Diabetes Mellitus, Type 2/metabolism , Female , Gastric Inhibitory Polypeptide/metabolism , Glucagon-Like Peptide 1/metabolism , Glucose/biosynthesis , Humans , Insulin Secretion , Male , Peptide YY/metabolism
16.
J Diabetes Complications ; 34(11): 107678, 2020 11.
Article in English | MEDLINE | ID: mdl-32718559

ABSTRACT

AIMS: To determine whether sleep blood pressure (BP) is associated with increased cardiovascular disease (CVD) risk in youth with type 1 diabetes (T1DM). METHODS: We enrolled youth with T1DM, 12-21 years old. Carotid-femoral Pulse Wave Velocity (PWVcf) assessed arterial stiffness, a CVD marker. Sleep systolic and diastolic BP variables were obtained from 24-hour BP Monitoring. Linear regression models analyzed the relationship of each BP variable with PWVcf, adjusted for HbA1c. Correlation of sleep BP with urine microalbumin-to-creatinine ratio (UAC) was examined. RESULTS: Nocturnal hypertension was found in 36% and abnormal dipping in 48% of the 25 participants, aged 17.7 ±â€¯2.2 years old. Sleep systolic BP [beta = 0.039, 95% Confidence Interval (CI; 0.006-0.073)], diastolic BP [beta = 0.058, 95% CI (0.003-0.114)], Mean Arterial Pressure (MAP) [beta = 0.075, 95% CI (0.018-0.131)] and MAP index [beta = 3.547, 95% CI (0.867-6.227)] were significantly associated with PWVcf. Sleep diastolic BP, load, MAP correlated with UAC. CONCLUSIONS: Blood pressure alterations during sleep are common in youth with T1DM and they are associated with arterial stiffness and UAC. Larger studies are needed to confirm our results and examine whether interventions that target sleep and night-time BP could decrease CVD risk.


Subject(s)
Blood Pressure , Diabetes Mellitus, Type 1 , Hypertension , Sleep , Vascular Stiffness , Adolescent , Albuminuria , Blood Pressure Monitoring, Ambulatory , Child , Circadian Rhythm , Creatinine/urine , Diabetes Mellitus, Type 1/complications , Humans , Hypertension/complications , Hypertension/epidemiology , Pulse Wave Analysis , Young Adult
17.
Clin Pediatr (Phila) ; 59(4-5): 388-395, 2020 05.
Article in English | MEDLINE | ID: mdl-32003237

ABSTRACT

Pediatric health care providers are in a unique position to discuss the health implications of alcohol, tobacco, and drug use with adolescents and young adults (AYAs) with type 1 diabetes (T1D). This study evaluated the frequency of self-reported substance use and associated demographic and clinical characteristics in a sample of AYAs with T1D and patient-provider discussions of substance use in T1D care. Sixty-four AYAs completed questions about substance use from the Youth Risk Behavior Survey (YRBS). Corresponding diabetes clinic visits were audio-recorded, transcribed, and reviewed to examine substance use discussions. A total of 56.3% of AYAs reported ever engaging in substance use; 40.6% reported substance use within the past 30 days. Five AYAs had discussions about substance use during their most recent diabetes clinic visit. Substance use should be proactively addressed by pediatric health care providers and AYAs should be encouraged to raise questions related to substance use during clinic visits.


Subject(s)
Diabetes Mellitus, Type 1 , Risk-Taking , Substance-Related Disorders/epidemiology , Adolescent , Adolescent Behavior , Female , Humans , Longitudinal Studies , Male , Self Report , Surveys and Questionnaires , Young Adult
18.
J Health Organ Manag ; ahead-of-print(ahead-of-print)2019 Nov 27.
Article in English | MEDLINE | ID: mdl-31846248

ABSTRACT

PURPOSE: The purpose of this paper is to describe a successful model of shared medical leadership within an academic division of an urban children's hospital. DESIGN/METHODOLOGY/APPROACH: Experience and outcomes were tracked over a three-year period during which two physicians shared the role of interim division chief of pediatric endocrinology and diabetes, resulting in a working model of shared leadership. FINDINGS: An evolutionary trajectory occurred over three years in which the strengths of the leaders were combined to optimize decision making in a complex medical division. Improvements in team satisfaction and additional positive outcomes were achieved. PRACTICAL IMPLICATIONS: Benefits of and challenges tackled by the strategic approach to shared leadership are identified to inform other medical institutions, particularly those with many team members or combined programs that include strong clinical and research components. ORIGINALITY/VALUE: Little has been written within medical literature regarding shared leadership. The shared leadership model described in this paper can be implemented by others in a complex academic setting and will hopefully lead to more robust divisions.


Subject(s)
Cooperative Behavior , Hospitals, Pediatric/organization & administration , Leadership , Models, Organizational , Physician's Role , Humans , Patient Care Team/organization & administration
19.
J Fam Psychol ; 33(7): 788-796, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31021129

ABSTRACT

Emerging adulthood is a transitional period for type 1 diabetes management, and aspects of family functioning such as family conflict and responsibility for diabetes management likely change following high school graduation. This study examined changes in diabetes-specific family conflict, family responsibility for diabetes management tasks, and associations with glycemic control up to 1 year after high school. Seventy-nine emerging adults with type 1 diabetes (M age = 18.09 ± .43 years; 51% female; 71% Caucasian) and their parents (73% female) completed self-report measures on diabetes-specific family conflict and family responsibility at 3 consecutive clinic visits, beginning in the spring of their senior year of high school. Hemoglobin A1c (HbA1c) was obtained from medical records. Diabetes-specific family conflict was relatively low; scores did not significantly change from baseline to Time 3. Parent responsibility for diabetes care decreased from baseline to Time 3. Higher parent- and emerging adult-reported family conflict and higher parent responsibility for diabetes care were associated with worse glycemic control (ps < .05). Parent-reported family conflict and the interaction between parent-reported family conflict and responsibility predicted HbA1c 1 year after high school. Conversely, HbA1c did not predict diabetes-specific family conflict or responsibility 1 year after high school. Findings indicate that diabetes-specific family conflict is associated with glycemic control after high school, even when emerging adults assume greater responsibility for diabetes self-care. Diabetes-specific family conflict levels were generally low and did not change over time despite this transitional period. If diabetes-specific conflict is present, it should be an important avenue for potential intervention for emerging adults with type 1 diabetes. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Subject(s)
Blood Glucose Self-Monitoring/statistics & numerical data , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Family Conflict/psychology , Patient Compliance/statistics & numerical data , Self Care/statistics & numerical data , Adolescent , Adult , Blood Glucose Self-Monitoring/psychology , Female , Humans , Longitudinal Studies , Male , Patient Compliance/psychology , Self Care/psychology , Young Adult
20.
Cardiovasc Diabetol ; 17(1): 158, 2018 12 19.
Article in English | MEDLINE | ID: mdl-30567548

ABSTRACT

BACKGROUND: Patients with type 1 diabetes (T1DM) have increased mortality from cardiovascular disease (CVD). Risk factors for CVD include an elevation of LDL (LDLp) and small HDL (sHDLp) particles, and a decrease in reverse cholesterol transport i.e. HDL-cholesterol efflux capacity (CEC). Our objective was to compare lipoprotein particles and CEC between T1DM and healthy controls (HC) and to explore the associations between NMR lipid particles and cholesterol efflux. METHODS: 78 patients with T1DM and 59 HC underwent fasting lipoprotein profile testing by NMR and measurements of CEC by cell-based method. The associations between NMR lipid particles with CEC were analyzed using multivariable linear regression models. RESULTS: Youth with T1DM had higher total LDLp 724 [(563-985) vs 622 (476-794) nmol/L (P = 0.011)] (Maahs et al. in Circulation 130(17):1532-58, 2014; Shah et al. in Pediatr Diabetes 16(5):367-74, 2015), sHDLp [11.20 (5.7-15.3) vs 7.0 (3.2-13.1) µmol/L (P = 0.021)], and lower medium HDLp [11.20 (8.5-14.5) vs 12.3 (9-19.4), (P = 0.049)] and lower CEC (0.98 ± 0.11% vs 1.05 ± 0.15%, P = 0.003) compared to HC. Moreover, CEC correlated with sHDLp (ß = - 0.28, P = 0.045) and large HDLp (ß = 0.46, P < 0.001) independent of age, sex, ethnicity, BMIz, HbA1c, hsCRP and total HDLp in the diabetic cohort. CONCLUSIONS: Youth with T1DM demonstrated a more atherogenic profile including higher sHDL and LDLp and lower CEC. Future efforts should focus on considering adding lipoprotein particles and CEC in CVD risk stratification of youth with T1DM. Trial registration Clinical Trials Registration Number NCT02275091.


Subject(s)
Cholesterol, HDL/blood , Cholesterol, LDL/blood , Diabetes Mellitus, Type 1/blood , Adolescent , Age Factors , Biomarkers/blood , Case-Control Studies , Child , Cross-Sectional Studies , Diabetes Mellitus, Type 1/diagnosis , Female , Humans , Magnetic Resonance Spectroscopy , Male , Prognosis , Young Adult
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