Publications by authors named "Howard A Wolpert"

Objective: Hyperglycemia in hospitalized patients is associated with increased morbidity and mortality. Basal-bolus insulin therapy is the treatment of choice for most patients. The efficacy of an ultrarapid vs.

View Article and Find Full Text PDF

Context: Continuous glucose monitor (CGM) companies are beginning to market these sensors to populations without diabetes, but the range of CGM values clinicians should expect to see for this population is unclear because there have been no large studies reporting these ranges.

Objective: To report the physiological range of continuous glucose monitor (CGM) time in range values observed across glycemic status, including individuals without diabetes, to serve as a reference for clinicians.

Design: The Framingham Heart Study, a prospective cohort study.

View Article and Find Full Text PDF

Individuals living with type 1 diabetes (T1D) from medically underserved communities have poorer health outcomes. Efforts to improve outcomes include a focus on team-based care, activation of behavior change, and enhancing self-management skills and practices. Advanced diabetes technologies are part of the standard of care for adults with T1D.

View Article and Find Full Text PDF

Background: In this proof-of-concept study, we evaluated if monogenic diabetes resulting from mutations of the gene (HNF1A-MODY) has a distinctive continuous glucose monitoring (CGM) glucotype, in comparison to type 1 diabetes (T1D).

Methods: Using CGM data from 5 subjects with HNF1A-MODY and 115 subjects with T1D, we calculated multiple glucose metrics, including measures of within- and between-day variability (such as coefficient variation for each hour [CV]).

Results: The MODY and T1D cohorts had minimum CV of 11.

View Article and Find Full Text PDF

Background: Historically, intensive insulin therapy for type 1 diabetes (T1D) has improved glycemic control at the risk of adverse weight gain. The impact of continuous subcutaneous insulin infusion therapy (CSII) on weight in the current era remains unknown. We assessed changes in hemoglobin A1c (HbA1c) and weight in adults with T1D transitioning to CSII at 2 diabetes centers in Denmark and the United States.

View Article and Find Full Text PDF

Objective: To determine insulin dose adjustments required for coverage of high-fat, high-protein (HFHP) meals in type 1 diabetes (T1D).

Research Design And Methods: Ten adults with T1D received low-fat, low-protein (LFLP) and HFHP meals with identical carbohydrate content, covered with identical insulin doses. On subsequent occasions, subjects repeated the HFHP meal with an adaptive model-predictive insulin bolus until target postprandial glycemic control was achieved.

View Article and Find Full Text PDF

Background: Continuous glucose monitoring highlights the complexity of postprandial glucose patterns present in type 1 diabetes and points to the limitations of current approaches to mealtime insulin dosing based primarily on carbohydrate counting.

Methods: A systematic review of all relevant biomedical databases, including MEDLINE, Embase, CINAHL, and the Cochrane Central Register of Controlled Trials, was conducted to identify research on the effects of dietary fat, protein, and glycemic index (GI) on acute postprandial glucose control in type 1 diabetes and prandial insulin dosing strategies for these dietary factors.

Results: All studies examining the effect of fat (n = 7), protein (n = 7), and GI (n = 7) indicated that these dietary factors modify postprandial glycemia.

View Article and Find Full Text PDF

Importance: Optimization of glycemic control is critical to reduce the number of diabetes mellitus-related complications, but long-term success is challenging. Although vision loss is among the greatest fears of individuals with diabetes, comprehensive personalized diabetes education and risk assessments are not consistently used in ophthalmologic settings.

Objective: To determine whether the point-of-care measurement of hemoglobin A(1c) (HbA(1c)) and personalized diabetes risk assessments performed during retinal ophthalmologic visits improve glycemic control as assessed by HbA(1c) level.

View Article and Find Full Text PDF

Objective: This qualitative study aimed to explore the experience of transition from pediatric to adult diabetes care reported by posttransition emerging adults with type 1 diabetes (T1D), with a focus on preparation for the actual transfer in care.

Methods: Twenty-six T1D emerging adults (mean age 26.2±2.

View Article and Find Full Text PDF

The objective was to develop an analysis methodology for generating diabetes therapy decision guidance using continuous glucose (CG) data. The novel Likelihood of Low Glucose (LLG) methodology, which exploits the relationship between glucose median, glucose variability, and hypoglycemia risk, is mathematically based and can be implemented in computer software. Using JDRF Continuous Glucose Monitoring Clinical Trial data, CG values for all participants were divided into 4-week periods starting at the first available sensor reading.

View Article and Find Full Text PDF

Objective: To examine barriers to health care transition reported by young adults with type 1 diabetes and associations between barriers and prolonged gaps between pediatric and adult diabetes care.

Methods: We surveyed young adults aged 22 to 30 years with type 1 diabetes about their transition experiences, including barriers to timely establishment of adult diabetes care. We evaluated relationships between barriers and gaps in care using multivariate logistic regression.

View Article and Find Full Text PDF

Objective: Current guidelines for intensive treatment of type 1 diabetes base the mealtime insulin bolus calculation exclusively on carbohydrate counting. There is strong evidence that free fatty acids impair insulin sensitivity. We hypothesized that patients with type 1 diabetes would require more insulin coverage for higher-fat meals than lower-fat meals with identical carbohydrate content.

View Article and Find Full Text PDF

Patients with type 1 diabetes (T1D) suffer excessive morbidity and mortality after myocardial infarction (MI) that is not fully explained by the metabolic effects of diabetes. Acute MI is known to trigger a profound innate inflammatory response with influx of mononuclear cells and production of proinflammatory cytokines that are crucial for cardiac repair. We hypothesized that these same pathways might exert "adjuvant effects" and induce pathological responses in autoimmune-prone T1D hosts.

View Article and Find Full Text PDF

Objective: To examine characteristics of the transition from pediatric to adult care in emerging adults with type 1 diabetes and evaluate associations between transition characteristics and glycemic control.

Research Design And Methods: We developed and mailed a survey to evaluate the transition process in emerging adults with type 1 diabetes, aged 22 to 30 years, receiving adult diabetes care at a single center. Current A1C data were obtained from the medical record.

View Article and Find Full Text PDF

Background: The objective of the study was to evaluate the clinical effectiveness and safety of a device that combines an insulin pump with real-time continuous glucose monitoring (CGM), compared to using an insulin pump with standard blood glucose monitoring systems.

Methods: This 6-month, randomized, multicenter, treat-to-target study enrolled 146 subjects treated with continuous subcutaneous insulin infusion between the ages of 12 and 72 years with type 1 diabetes and initial A1C levels of >or=7.5%.

View Article and Find Full Text PDF

Real-time continuous glucose monitoring (RT-CGM) provides detailed information on glucose patterns and trends and promises to be a major advance in diabetes care. To derive full potential benefit from RT-CGM, the patient needs to be skilled in diabetes self-management. In addition, several key concepts and issues need to be addressed in training patients to use RT-CGM.

View Article and Find Full Text PDF

There is increasing recognition that the patient education and care provided to young adults with chronic physical illnesses, including type 1 diabetes, is inattentive to the complex developmental issues facing the older adolescent transitioning into the young adult period [Pediatrics 110 (2002) 1307]. In this paper, we present a clinical perspective on the challenge of improving diabetes education and care during the young adult period focusing on the importance of the developmental changes-cognitive, social, emotional, educational, and familial-that occur during this transitional stage of life. This developmental perspective on young adulthood provides a conceptual framework to better understand the young adult's "readiness" for engagement in intensive medical therapy.

View Article and Find Full Text PDF