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Wu Z, Yardley JE, Messier V, Legault L, Grou C, Rabasa-Lhoret R. Comparison of Nocturnal Glucose After Exercise Among Dual-Hormone, Single-Hormone Algorithm-Assisted Insulin Delivery System and Usual Care in Adults and Adolescents Living with Type 1 Diabetes: A Pooled Analysis. Diabetes Technol Ther 2022; 24:754-762. [PMID: 35653732 DOI: 10.1089/dia.2022.0149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: Available studies comparing the efficacy of dual-hormone (DH)-algorithm-assisted insulin delivery (AID), single-hormone (SH)-AID and usual care on postexercise overnight glucose in people with type 1 diabetes (T1D) have had different outcomes. By pooling data from all available studies, we aim to draw stronger conclusions. Methods: Data were pooled from two three-arm, open-label, randomized, controlled, crossover studies. Forty-one adults [median (Q1, Q3) age: 34.0 years (29.5, 51.0), mean HbA1c: 7.5% ± 1.0%] and 17 adolescents with T1D [age: 14.0 (13.0, 16.0), HbA1c: 7.8% ± 0.8%] underwent DH-AID, SH-AID, and usual care. Each intervention involved evening aerobic exercise (60-min). The primary outcome, time in range% (TIR%) overnight (00:00-06:00) postexercise based on continuous glucose monitoring, was compared among treatments using linear mixed effect model or generalized linear mixed model. Results: Among adults, mean TIR% was 94.0% ± 11.9%, 83.1% ± 20.5%, and 65.1% ± 37.0% during DH-AID, SH-AID, and usual care intervention, respectively (P < 0.05 for all between-group comparisons). DH-AID was superior to SH-AID and usual care, and SH-AID was superior to usual care regarding hypoglycemia and hyperglycemia prevention, but not glycemic variability. Among adolescents, DH-AID and SH-AID reduced dysglycemia, but not glycemic variability, better than usual care. Glycemic outcomes were similar between DH-AID and SH-AID. Conclusion: AID systems allow improved postexercise nocturnal glycemic management than usual care for both adults and adolescents. DH-AID was better than SH-AID among adults, but not adolescents.
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Affiliation(s)
- Zekai Wu
- Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Clinical Research Institute, Montreal, Quebec, Canada
| | - Jane E Yardley
- Augustana Faculty, University of Alberta, Camrose, Alberta, Canada
- Physical Activity and Diabetes Laboratory, Alberta Diabetes Institute, Edmonton, Alberta, Canada
- Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | | | - Laurent Legault
- McGill University Health Centre, Montreal Children's Hospital, Montreal, Quebec, Canada
| | - Caroline Grou
- Montreal Clinical Research Institute, Montreal, Quebec, Canada
| | - Rémi Rabasa-Lhoret
- Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Quebec, Canada
- Montreal Clinical Research Institute, Montreal, Quebec, Canada
- Department of Nutrition, Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
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Molveau J, Rabasa-Lhoret R, Myette-Côté É, Messier V, Suppère C, J. Potter K, Heyman E, Tagougui S. Prevalence of nocturnal hypoglycemia in free-living conditions in adults with type 1 diabetes: What is the impact of daily physical activity? Front Endocrinol (Lausanne) 2022; 13:953879. [PMID: 36237197 PMCID: PMC9551602 DOI: 10.3389/fendo.2022.953879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/18/2022] [Indexed: 12/02/2022] Open
Abstract
Objective Studies investigating strategies to limit the risk of nocturnal hypoglycemia associated with physical activity (PA) are scarce and have been conducted in standardized, controlled conditions in people with type 1 diabetes (T1D). This study sought to investigate the effect of daily PA level on nocturnal glucose management in free-living conditions while taking into consideration reported mitigation strategies to limit the risk of nocturnal hyoglycemia in people with T1D. Methods Data from 25 adults (10 males, 15 females, HbA1c: 7.6 ± 0.8%), 20-60 years old, living with T1D, were collected. One week of continuous glucose monitoring and PA (assessed using an accelerometer) were collected in free-living conditions. Nocturnal glucose values (midnight-6:00 am) following an active day "ACT" and a less active day "L-ACT" were analyzed to assess the time spent within the different glycemic target zones (<3.9 mmol/L; 3.9 - 10.0 mmol/L and >10.0 mmol/L) between conditions. Self-reported data about mitigation strategies applied to reduce the risk of nocturnal hypoglycemia was also analyzed. Results Only 44% of participants reported applying a carbohydrate- or insulin-based strategy to limit the risk of nocturnal hypoglycemia on ACT day. Nocturnal hypoglycemia occurrences were comparable on ACT night versus on L-ACT night. Additional post-meal carbohydrate intake was higher on evenings following ACT (27.7 ± 15.6 g, ACT vs. 19.5 ± 11.0 g, L-ACT; P=0.045), but was frequently associated with an insulin bolus (70% of participants). Nocturnal hypoglycemia the night following ACT occurred mostly in people who administrated an additional insulin bolus before midnight (3 out of 5 participants with nocturnal hypoglycemia). Conclusions Although people with T1D seem to be aware of the increased risk of nocturnal hypoglycemia associated with PA, the risk associated with additional insulin boluses may not be as clear. Most participants did not report using compensation strategies to reduce the risk of PA related late-onset hypoglycemia which may be because they did not consider habitual PA as something requiring treatment adjustments.
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Affiliation(s)
- Joséphine Molveau
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
- Département de Nutrition, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d’Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
| | - Rémi Rabasa-Lhoret
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
- Département de Nutrition, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
- Département des Sciences Biomédicales, Faculté de Médecine, Université de Montréal, Montreal, QC, Canada
- Endocrinology Division, Montreal Diabetes Research Center, Montréal, QC, Canada
| | - Étienne Myette-Côté
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
- Department of Applied Human Sciences, Faculty of Science, University of Prince Edward Island, Charlottetown, PE, Canada
| | - Virginie Messier
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
| | - Corinne Suppère
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
| | | | - Elsa Heyman
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d’Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
- Institut Universitaire de France (IUF), Paris, France
| | - Sémah Tagougui
- Institut de recherches cliniques de Montréal, Montréal, QC, Canada
- Département de Nutrition, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
- Univ. Lille, Univ. Artois, Univ. Littoral Côte d’Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France
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Talbo MK, Rabasa-Lhoret R, Yale JF, Peters TM, Brazeau AS. Are nocturnal hypoglycemia prevention strategies influenced by diabetes technology usage? A BETTER registry analysis. Diabetes Res Clin Pract 2022; 191:110080. [PMID: 36099973 DOI: 10.1016/j.diabres.2022.110080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 12/24/2022]
Abstract
AIM To assess the association of nocturnal hypoglycemia prevention strategies (NH-PS) and diabetes technology usage (insulin pump and/or continuous glucose monitors [CGM]) in people with type 1 diabetes (PWT1D). METHODS Logistic regression models were used to describe associations between self-reported NH-PS and diabetes technology (pump with intermittently-scanned or real-time CGM (isCGM or rtCGM), or automated insulin delivery (AID)), hypoglycemia history, and fear of hypoglycemia (FOH). RESULTS Among 831 adults (65 % female, aged 44 ± 15 years, T1D duration 26 ± 15 years), 32 % reported HbA1c ≤ 7.0 %, 88 % used ≥ 1 diabetes technology, 66 % reported ≥ 1 symptomatic NH in the past month, and 64 % used ≥ 2 NH-PS. Compared to multiple daily injections (MDI) + capillary blood glucose (CBG), bedtime snack consumption was less likely among pump + isCGM (OR [95 %CI]: 0.55 [0.31, 0.98]), pump + rtCGM (0.40 [0.20, 0.81]), and AID (0.34 [0.17, 0.66]) users, while evening insulin basal reduction was associated with CSII + CBG (3.15 [1.25, 7.99]), pump + isCGM 4.00 [1.99, 8.01]), and pump + rtCGM 2.89 [1.28, 6.50] use. Elevated FOH was associated with snack consumption (1.37 [1.00, 1.89]), evening bolus insulin avoidance (1.77 [1.11, 2.83]), limiting exercise (2.50 [1.30, 4.82]), and limiting alcohol consumption (2.33 [1.15, 4.70]) as NH-PS. CONCLUSION Technology use and elevated FOH might influence PWT1D' choice of NH-PS.
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Affiliation(s)
- Meryem K Talbo
- School of Human Nutrition, McGill University, 21111 Lakeshore Dr, Sainte-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Rémi Rabasa-Lhoret
- Institut de Recherches Cliniques de Montréal Université de Montréal, 110 Pine Ave W, Montréal, Québec H2W 1R7, Canada; Division of Endocrinology and Metabolism, Centre hospitalier de l'Université de Montréal, Canada; Montreal Diabetes Research Center, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada
| | - Jean-François Yale
- Division of Endocrinology and Metabolism, McGill University Health Center, McGill University, Montreal, Quebec, Canada
| | - Tricia M Peters
- Lady Davis Institute of Medical Research, Jewish General Hospital, Montreal, Quebec, Canada; The Jewish General Hospital, Division of Endocrinology, Department of Medicine, McGill University, Montreal, QC, Canada
| | - Anne-Sophie Brazeau
- School of Human Nutrition, McGill University, 21111 Lakeshore Dr, Sainte-Anne-de-Bellevue, Quebec H9X 3V9, Canada; Montreal Diabetes Research Center, 900 Saint-Denis, Montreal, QC H2X 0A9, Canada.
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Przezak A, Bielka W, Molęda P. Fear of hypoglycemia-An underestimated problem. Brain Behav 2022; 12:e2633. [PMID: 35620854 PMCID: PMC9304823 DOI: 10.1002/brb3.2633] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/22/2022] [Accepted: 03/26/2022] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Fear of hypoglycemia (FOH) is a phenomenon that affects people with diabetes experiencing hypoglycemia. On the one hand, FOH is an adaptive mechanism that helps to protect patients from hypoglycemia and its consequences. On the other hand, the non-normative level of FOH causes anxiety and tension, disturbs normal functioning, and makes normoglycemia maintenance difficult. OBJECTIVE The main objective of this review was to describe factors influencing FOH and methods of measurement of FOH levels. Moreover, we highlighted the impact of the new technologies used in diabetes therapy on FOH and different therapeutic possibilities helping patients cope with excessive levels of FOH. We also presented clinical cases of patients with high FOH levels met in clinical practice and discussed methods to better diagnose and assist people with this kind of problem. METHODS We searched for studies and articles via PubMed using the keywords fear of hypoglycemia, diabetes, and hypoglycemia. From screened documents identified from literature search, 67 articles were included in our review. RESULTS We divided results from literature screening into five parts: fear of hypoglycemia and hypoglycemia definition, risk factors for the FOH, methods of measuring levels of FOH, therapies for the FOH, and modern technologies. We also described clinical examples of abnormal fear of hypoglycemia in patients. CONCLUSION The review highlights the importance of taking into consideration fear of hypoglycemia phenomenon in diabetic patients in everyday clinical practice.
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Affiliation(s)
- Agnieszka Przezak
- Department of Diabetology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Weronika Bielka
- Department of Diabetology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Piotr Molęda
- Department of Diabetology and Internal Medicine, Pomeranian Medical University, Szczecin, Poland
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Molveau J, Rabasa-Lhoret R, Taleb N, Heyman E, Myette-Côté É, Suppère C, Berthoin S, Tagougui S. Minimizing the Risk of Exercise-Induced Glucose Fluctuations in People Living With Type 1 Diabetes Using Continuous Subcutaneous Insulin Infusion: An Overview of Strategies. Can J Diabetes 2021; 45:666-676. [PMID: 33744123 DOI: 10.1016/j.jcjd.2021.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 12/16/2022]
Abstract
Physical activity (PA) is important for individuals living with type 1 diabetes (T1D) due to its various health benefits. Nonetheless, maintaining adequate glycemic control around PA remains a challenge for many individuals living with T1D because of the difficulty in properly managing circulating insulin levels around PA. Although the most common problem is increased incidence of hypoglycemia during and after most types of PA, hyperglycemia can also occur. Accordingly, a large proportion of people living with T1D are sedentary partly due to the fear of PA-associated hypoglycemia. Continuous subcutaneous insulin infusion (CSII) offers a higher precision and flexibility to adjust insulin basal rates and boluses according to the individual's specific needs around PA practice. Indeed, for physically active patients with T1D, CSII can be a preferred option to facilitate glucose regulation. To our knowledge, there are no guidelines to manage exercise-induced hypoglycemia during PA, specifically for individuals living with T1D and using CSII. In this review, we highlight the current state of knowledge on exercise-related glucose variations, especially hypoglycemic risk and its underlying physiology. We also detail the current recommendations for insulin modulations according to the different PA modalities (type, intensity, duration, frequency) in individuals living with T1D using CSII.
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Affiliation(s)
- Joséphine Molveau
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada; Département de Nutrition, Faculté de Médicine, Université de Montréal, Montreal, Québec, Canada
| | - Rémi Rabasa-Lhoret
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada; Département de Nutrition, Faculté de Médicine, Université de Montréal, Montreal, Québec, Canada; Département des Sciences Biomédicales, Faculté de Médicine, Université de Montréal, Montreal, Québec, Canada; Division of Endocrinology, McGill University, Montreal, Québec, Canada; Endocrinology Division, Montreal Diabetes Research Center, Montreal, Québec, Canada
| | - Nadine Taleb
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada; Département des Sciences Biomédicales, Faculté de Médicine, Université de Montréal, Montreal, Québec, Canada
| | - Elsa Heyman
- Université Lille, Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France; Université Artois, Artois, France; Université Littoral Côte d'Opale, Dunkerque, France
| | - Étienne Myette-Côté
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada; Department of Medicine, McGill University, Montreal, Québec, Canada
| | - Corinne Suppère
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada
| | - Serge Berthoin
- Université Lille, Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France; Université Artois, Artois, France; Université Littoral Côte d'Opale, Dunkerque, France
| | - Sémah Tagougui
- Institut de recherches cliniques de Montréal, Montréal, Québec, Canada; Département de Nutrition, Faculté de Médicine, Université de Montréal, Montreal, Québec, Canada; Université Lille, Unité de Recherche Pluridisciplinaire Sport Santé Société, Lille, France; Université Artois, Artois, France; Université Littoral Côte d'Opale, Dunkerque, France.
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Zhang Y, Li S, Zou Y, Wu X, Bi Y, Zhang L, Yuan Y, Gong W, Hayter M. Fear of hypoglycemia in patients with type 1 and 2 diabetes: a systematic review. J Clin Nurs 2020; 30:72-82. [PMID: 33091198 DOI: 10.1111/jocn.15538] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/14/2020] [Indexed: 01/17/2023]
Abstract
AIMS AND OBJECTIVES To summarize and thematize fear of hypoglycemia (FOH) in individuals with type 1 diabetes (T1D) and type 2 diabetes (T2D) to provide a theoretical basis for the development of effective interventions. BACKGROUND FOH is common in this population and can reduce quality of life(QOL) and adversely impact upon diabetes self-care management. DESIGN a systematic review METHODS: Articles published between 2000 and 2019 were searched in PubMed, MEDLINE, EMBASE, Web of Science and three Chinese databases (CNKI, Wan-fang data and VIP). Eligible articles were selected using the Preferred Reporting Item for Systematic Review and Meta-analysis (PRISMA) guidelines. The quality of all articles finally included was evaluated by the Joanna Briggs Institute (JBI) Critical Appraisal tools. RESULTS Eighteen studies from 8654 papers were included. The sample size of each study ranged from 48 to 3812 subjects. FOH negatively impacted QOL, particularly psychosocial functioning, daily life and sleep quality. CONCLUSIONS FOH is a common and serious problem for patients, leading to poor QOL. It has been suggested that psychological concerns, QOL and effective countermeasures in individuals with T1D and T2D should be taken seriously. Advanced technology should be evaluated for its benefits before being used by patients. RELEVANCE TO CLINICAL PRACTICE The review highlights that FOH negatively impacts QOL, including psychosocial factors, daily life and sleep quality. Healthcare providers should develop targeted and professional assessment tools for FOH and QOL for patients with T2D, especially for patients who are about 60 years old. Advanced technology should be evaluated for its benefits before being used by patients.
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Affiliation(s)
- Yu Zhang
- School of Nursing, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, China
| | - Shuang Li
- School of Nursing, Yangzhou University, Yangzhou, China
| | - Yan Zou
- School of Nursing, Yangzhou University, Yangzhou, China
| | - Xiaxin Wu
- School of Nursing, Yangzhou University, Yangzhou, China
| | - Yaxin Bi
- School of Nursing, Yangzhou University, Yangzhou, China
| | - Lu Zhang
- School of Nursing, Yangzhou University, Yangzhou, China
| | - Yuan Yuan
- School of Nursing, Yangzhou University, Yangzhou, China
- Department of Nursing, Yangzhou University Affiliated Hospital, Yangzhou, China
| | - Weijuan Gong
- School of Nursing, Yangzhou University, Yangzhou, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou, China
| | - Mark Hayter
- Faculty of Health Science, University of Hull, Hull, UK
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Liu J, Bispham J, Fan L, Poon JL, Hughes A, Mcauliffe-Fogarty A, Varnado O, Mitchell B. Factors associated with fear of hypoglycaemia among the T1D Exchange Glu population in a cross-sectional online survey. BMJ Open 2020; 10:e038462. [PMID: 32895285 PMCID: PMC7476480 DOI: 10.1136/bmjopen-2020-038462] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVES Fear of hypoglycaemia (FoH) has been associated with suboptimal diabetes management and health outcomes. This study investigated factors associated with behavioural and emotional aspects of FoH among adults living with type 1 diabetes (T1D) mellitus. DESIGN Cross-sectional study. SETTING Online survey hosted on T1D Exchange Glu, an online community for patients living with T1D mellitus. MEASURES The Hypoglycaemia Fear Survey II-short form and the Hypoglycaemic Attitudes and Behaviour Scale were used to assess FoH. Multivariable regressions were performed on assessment scores. RESULTS The study included 494 participants (mean±SD age 43.9±12.2 years, duration of T1D mellitus 16.6±16.8 years, self-reported glycosylated hemoglobin (HbA1c) 6.9%±0.8% (52±9 mmol/mol)), 63% men, 89% on insulin pump, 25% experienced a severe hypoglycaemic event in the last 6 months. Multivariable regression analyses showed higher anxiety, depression severity and diabetes distress were independently associated with FoH (all p<0.01). Longer diabetes duration was associated with lower FoH (p<0.01). Past experience with severe hypoglycaemia was associated with higher worry of hypoglycaemia (p<0.01) but not avoidance behaviour (ns). CONCLUSIONS These results highlighted the multifaceted nature of FoH, which warrants further discussion between providers and patients to uncover drivers of and actions required to reduce FoH and improve patient care and outcomes.
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Affiliation(s)
- Jingwen Liu
- Patient-Centered Research, T1D Exchange, Boston, Massachusetts, USA
| | - Jeoffrey Bispham
- Patient-Centered Research, T1D Exchange, Boston, Massachusetts, USA
| | - Ludi Fan
- Lilly Diabetes, Eli Lilly and Company, Indianapolis, Indiana, USA
| | - Jiat-Ling Poon
- Lilly Diabetes, Eli Lilly and Company, Indianapolis, Indiana, USA
| | - Allyson Hughes
- Patient-Centered Research, T1D Exchange, Boston, Massachusetts, USA
| | | | - Oralee Varnado
- Lilly Diabetes, Eli Lilly and Company, Indianapolis, Indiana, USA
| | - Beth Mitchell
- Lilly Diabetes, Eli Lilly and Company, Indianapolis, Indiana, USA
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Takahashi H, Nishimura R. Is it possible to predict the onset of nocturnal asymptomatic hypoglycemia in patients with type 1 diabetes receiving insulin degludec? Potential role of previous day and next morning glucose values. J Diabetes Investig 2020; 12:365-373. [PMID: 32671977 PMCID: PMC7926229 DOI: 10.1111/jdi.13363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 11/26/2022] Open
Abstract
AIMS/INTRODUCTION To determine whether the occurrence of nocturnal asymptomatic, serious, clinically important hypoglycemia (NSH) could be predicted based on glucose values on the previous day and the following morning of the day of onset. MATERIALS AND METHODS This study examined patients with type 1 diabetes who underwent continuous glucose monitoring assessments and received insulin degludec. NSH was defined as glucose level <54 mg/dL detected between 24.00 and 06.00 hours. The participants were evaluated to determine the following: (i) glucose level at bedtime (24.00 hours) on the previous day (BG); (ii) fasting glucose level (FG); and (iii) the range of post-breakfast glucose elevation. The patients were divided into those with NSH and those without, and compared using t-tests. Optimal cut-off values for relevant parameters for predicting NSH were determined using receiver operating characteristic analysis. RESULTS The study included a total of 31 patients with type 1 diabetes (mean glycated hemoglobin value 7.8 ± 0.7%). NSH occurred in eight patients (26%). BG and FG were significantly lower in those with NSH than in those without (P = 0.044, P < 0.001). The range of post-breakfast glucose elevation was significantly greater in those with NSH than in those without. The cut-off glucose values for predicting NSH were as follows: BG = 90 mg/dL (sensitivity 0.83/specificity 0.75/area under the curve 0.79, P = 0.017) and FG = 69 mg/dL (0.83/0.75/0.86, P = 0.003). CONCLUSIONS The results showed that in patients with type 1 diabetes receiving insulin degludec, BG <90 mg/dL and FG <69 mg/dL had an approximately 80% probability of predicting the occurrence of NSH.
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Affiliation(s)
- Hiroshi Takahashi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
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9
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Stone JY, Bailey TS. Benefits and limitations of continuous glucose monitoring in type 1 diabetes. Expert Rev Endocrinol Metab 2020; 15:41-49. [PMID: 31928104 DOI: 10.1080/17446651.2020.1706482] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 12/16/2019] [Indexed: 12/14/2022]
Abstract
Introduction: Type 1 diabetes (T1D) is a chronic condition characterized by a complete deficiency in insulin production. Optimal management requires constant knowledge of glucose levels for safe and effective insulin administration. Self-monitoring of blood glucose (SMBG) using capillary blood glucose meters is cumbersome and provides limited information to guide management. Continuous glucose monitoring (CGM) technology addresses many of these gaps, but itself has limitations which have prevented people with diabetes and their clinicians from fully embracing this technology. This review covers the benefits and limitations of CGM use, and looks toward future application of this technology in the management of T1D.Areas covered: Impact of CGM on physical and psychosocial outcomes in people with T1D. Barriers to CGM uptake. Integration with insulin pumps and other technologies. Opportunities for future application.Expert opinion: CGM technology will be utilized by the majority of people with T1D and increasing numbers of people with type 2 diabetes due to improved insurance coverage and easier-to-use systems. Its use as part of artificial pancreas systems will add further utility, as it will help to protect from both hypoglycemia and hyperglycemia. People with diabetes will spend more time in range and experience fewer acute and chronic complications.
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Affiliation(s)
- Jenine Y Stone
- AMCR Institute, Escondido, CA, USA
- Vanderbilt University School of Nursing, Nashville, TN, USA
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Martyn-Nemeth P, Duffecy J, Quinn L, Park C, Mihailescu D, Penckofer S. A cognitive behavioral therapy intervention to reduce fear of hypoglycemia in young adults with type 1 diabetes (FREE): study protocol for a randomized controlled trial. Trials 2019; 20:796. [PMID: 31888691 PMCID: PMC6938021 DOI: 10.1186/s13063-019-3876-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/02/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND In persons with type 1 diabetes (T1D), hypoglycemia is the major limiting factor in achieving optimal glycemic control. All persons with T1D are at risk for hypoglycemia (blood glucose level < 70 mg/dl), which is life-threatening and accompanied by serious physical and psychological symptoms, resulting in profound fear of hypoglycemia (FOH) and reduced quality of life. Young adults with T1D are at risk for FOH and have worse glycemic control and self-management behavior than other age groups with T1D. FOH also results in increased glycemic variability (GV). A major gap exists in how to manage FOH. Our overall objective is to reduce FOH and improve diabetes self-management, glycemic control, and GV in young adults with T1D to reduce or delay diabetes complications and improve quality of life. We aim to (1) determine the feasibility and acceptability of an eight-week cognitive behavioral therapy (CBT)-based Fear Reduction Efficacy Evaluation (FREE) intervention in young adults with T1D who experience FOH; and (2) determine the impact of the FREE intervention, compared to an attention control group, on the outcomes FOH, self-management, glycemic control (A1C), and glycemic variability (continuous glucose monitoring recordings). METHODS/DESIGN A randomized controlled trial in 50 young adults aged 18 to 35 years with T1D will be used. Eligible subjects will be randomized to the intervention program (Fear Reduction Efficacy Evaluation [FREE]) or attention control group. A one-week run-in phase is planned, with baseline measures of FOH, self-management behavior, A1C, and real-time continuous glucose monitoring recordings (RT-CGM) to calculate GV for both groups. The intervention group will participate in eight weekly individual one-hour sessions using CBT and exposure treatment for specific fears. RT-CGM and a daily FOH diary will be used as feedback cues as part of the FREE program. The attention control group will participate in eight weekly individual one-hour diabetes self-management education (DSME) sessions and wear a RT-CGM device (to measure GV only) over 8 weeks. At completion, FOH will be measured, and RT-CGM recordings will be analyzed to determine differences between the FREE and control groups. DISCUSSION Findings from this proposed pilot study will serve as the foundation for a larger trial to reduce FOH and improve self-management, glycemic control, and GV. TRIAL REGISTRATION ClinicalTrials.gov: A cognitive behavioral therapy (CBT) intervention to reduce fear of hypoglycemia in type 1 diabetes, NCT03549104. Registered June 7, 2018.
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Affiliation(s)
- Pamela Martyn-Nemeth
- Department of Biobehavioral Health Science, University of Illinois at Chicago College of Nursing, 845 South Damen Avenue (MC 802), Chicago, IL, 60612, USA.
| | - Jennifer Duffecy
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Laurie Quinn
- Department of Biobehavioral Health Science, University of Illinois at Chicago College of Nursing, 845 South Damen Avenue (MC 802), Chicago, IL, 60612, USA
| | - Chang Park
- Department of Health Systems Science, University of Illinois at Chicago College of Nursing, Chicago, IL, USA
| | - Dan Mihailescu
- Endocrinology/Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
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Abitbol A, Rabasa-Lhoret R, Messier V, Legault L, Smaoui M, Cohen N, Haidar A. Overnight Glucose Control with Dual- and Single-Hormone Artificial Pancreas in Type 1 Diabetes with Hypoglycemia Unawareness: A Randomized Controlled Trial. Diabetes Technol Ther 2018; 20:189-196. [PMID: 29393675 DOI: 10.1089/dia.2017.0353] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The dual-hormone (insulin and glucagon) artificial pancreas may be justifiable in some, but not all, patients. We sought to compare dual- and single-hormone artificial pancreas systems in patients with hypoglycemia unawareness and documented nocturnal hypoglycemia. METHODS We conducted a randomized crossover trial comparing the efficacy of dual- and single-hormone artificial pancreas systems in controlling plasma glucose levels over the course of one night's sleep. We recruited 18 adult participants with hypoglycemia unawareness and 17 participants with hypoglycemia awareness, all of whom had documented nocturnal hypoglycemia during 2 weeks of screening. Outcomes were calculated using plasma glucose. RESULTS In participants with hypoglycemia unawareness, the median (interquartile range [IQR]) percentage of time that plasma glucose was below 4.0 mmol/L was 0% (0-0) on dual-hormone artificial pancreas nights and 0% (0-10) on single-hormone artificial pancreas nights (P = 0.20). Additionally, participants with hypoglycemia unawareness experienced two hypoglycemic events (<3.0 mmol/L) on dual-hormone artificial pancreas nights and three hypoglycemic events on single-hormone artificial pancreas nights. In participants with hypoglycemia awareness, the median (IQR) percentage of time that plasma glucose was below 4.0 mmol/L was 0% (0-0) on both dual- and single-hormone artificial pancreas nights. Hypoglycemia awareness participants experienced zero hypoglycemic events on dual-hormone artificial pancreas nights and one event on single-hormone artificial pancreas nights. DISCUSSION In this study, dual-hormone and single-hormone systems performed equally well in preventing nocturnal hypoglycemia in participants with hypoglycemia unawareness. Longer studies over the course of multiple days and nights may be needed to explore possible specific benefits in this population. ClinicalTrials.gov No. NCT02282254.
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Affiliation(s)
- Alexander Abitbol
- 1 LMC Diabetes & Endocrinology , Toronto, Canada
- 2 Institut de Recherches Cliniques de Montréal , Montreal, Canada
- 3 Division of Endocrinology and Metabolism, Department of Medicine, McGill University Health Centre , Montreal, Canada
| | - Remi Rabasa-Lhoret
- 2 Institut de Recherches Cliniques de Montréal , Montreal, Canada
- 4 Montreal Diabetes Research Center , Montreal, Canada
- 5 Division of Endocrinology and Metabolism, Department of Medicine, Université de Montréal , Montreal, Canada
- 6 Nutrition Department, Faculty of Medicine, University of Montreal , Montreal, Canada
| | - Virginie Messier
- 2 Institut de Recherches Cliniques de Montréal , Montreal, Canada
| | - Laurent Legault
- 7 Division of Pediatric Endocrinology and Metabolism, Department of Medicine, Montreal Children's Hospital, McGill University Health Centre , Montreal, Canada
| | - Mohamad Smaoui
- 2 Institut de Recherches Cliniques de Montréal , Montreal, Canada
| | - Nathan Cohen
- 8 Jaeb Center for Health Research , Tampa, Florida
| | - Ahmad Haidar
- 3 Division of Endocrinology and Metabolism, Department of Medicine, McGill University Health Centre , Montreal, Canada
- 9 Department of Biomedical Engineering, Faculty of Medicine, McGill University , Montreal, Canada
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12
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Ye JZ, Su YB, Lin XM, Lai SS, Li WX, Ali F, Zheng J, Peng B. Alanine Enhances Aminoglycosides-Induced ROS Production as Revealed by Proteomic Analysis. Front Microbiol 2018; 9:29. [PMID: 29441044 PMCID: PMC5797687 DOI: 10.3389/fmicb.2018.00029] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 01/08/2018] [Indexed: 12/23/2022] Open
Abstract
Metabolite-enabled killing of antibiotic-resistant pathogens by antibiotics is an attractive strategy to manage antibiotic resistance. Our previous study demonstrated that alanine or/and glucose increased the killing efficacy of kanamycin on antibiotic-resistant bacteria, whose action is through up-regulating TCA cycle, increasing proton motive force and enhancing antibiotic uptake. Despite the fact that alanine altered several metabolic pathways, other mechanisms could be potentially involved in alanine-mediated kanamycin killing of bacteria which remains to be explored. In the present study, we adopted proteomic approach to analyze the proteome changes induced by exogenous alanine. Our results revealed that the expression of three outer membrane proteins was altered and the deletion of nagE and fadL decreased the intracellular kanamycin concentration, implying their possible roles in mediating kanamycin transport. More importantly, the integrated analysis of proteomic and metabolomic data pointed out that alanine metabolism could connect to riboflavin metabolism that provides the source for reactive oxygen species (ROS) production. Functional studies confirmed that alanine treatment together with kanamycin could promote ROS production that in turn potentiates the killing of antibiotic-resistant bacteria. Further investigation showed that alanine repressed the transcription of antioxidant-encoding genes, and alanine metabolism to riboflavin metabolism connected with riboflavin metabolism through TCA cycle, glucogenesis pathway and pentose phosphate pathway. Our results suggest a novel mechanism by which alanine facilitates kanamycin killing of antibiotic-resistant bacteria via promoting ROS production.
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Affiliation(s)
- Jin-Zhou Ye
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yu-Bin Su
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiang-Min Lin
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Key Laboratory of Crop Ecology and Molecular Physiology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shi-Shi Lai
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wan-Xin Li
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Key Laboratory of Crop Ecology and Molecular Physiology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Farman Ali
- Fujian Provincial Key Laboratory of Agroecological Processing and Safety Monitoring, Key Laboratory of Crop Ecology and Molecular Physiology, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jun Zheng
- Faculty of Health Sciences, University of Macau, Macau, China
| | - Bo Peng
- Center for Proteomics and Metabolomics, State Key Laboratory of Bio-Control, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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13
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Tagougui S, Taleb N, Rabasa-Lhoret R. The Benefits and Limits of Technological Advances in Glucose Management Around Physical Activity in Patients Type 1 Diabetes. Front Endocrinol (Lausanne) 2018; 9:818. [PMID: 30713524 PMCID: PMC6346637 DOI: 10.3389/fendo.2018.00818] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/31/2018] [Indexed: 12/20/2022] Open
Abstract
Physical activity is highly recommended for patients living with type 1 diabetes (T1D) due to its varied health benefits. Nevertheless, glucose management, during and in the hours following exercise, represents a great challenge for these patients who most often end up leading a sedentary life style. Important technological advances in insulin delivery devices and glucose monitoring are now available and continue to progress. These technologies could be used to alleviate glucose management related to physical activity in T1D. Continuous glucose monitoring (CGM) helps patients observe the trends of glycemic fluctuations when exercising and in the following night to deal pre-emptively with hypoglycemic risks and treat hypoglycemic episodes in a timely manner. Insulin pumps offer the flexibility of adjusting insulin basal rates and boluses according to patient's specific needs around exercise. The artificial pancreas links CGM to pump through an intelligent hormone dosing algorithm to close the loop of glucose control and has thus the potential to ease the burden of exercise in T1D. This review will examine and discuss the literature related to physical activity practice using each of these technologies. The aim is to discuss their benefits as well as their limitations and finally the additional research needed in the future to optimize their use in T1D.
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Affiliation(s)
- Sémah Tagougui
- Institut de Recherches Cliniques de Montréal, Montreal, QC, Canada
- Département de Nutrition, Faculté de Médicine, Université de Montréal, Montreal, QC, Canada
| | - Nadine Taleb
- Institut de Recherches Cliniques de Montréal, Montreal, QC, Canada
- Département des Sciences Biomédicales, Faculté de Médicine, Université de Montréal, Montreal, QC, Canada
| | - Rémi Rabasa-Lhoret
- Institut de Recherches Cliniques de Montréal, Montreal, QC, Canada
- Département de Nutrition, Faculté de Médicine, Université de Montréal, Montreal, QC, Canada
- Département des Sciences Biomédicales, Faculté de Médicine, Université de Montréal, Montreal, QC, Canada
- Division of Endocrinology, McGill University, Montreal, QC, Canada
- Endocrinology Division, Montreal Diabetes Research Center, Montreal, QC, Canada
- *Correspondence: Rémi Rabasa-Lhoret
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Zhong VW, Crandell JL, Shay CM, Gordon-Larsen P, Cole SR, Juhaeri J, Kahkoska AR, Maahs DM, Seid M, Forlenza GP, Mayer-Davis EJ. Dietary intake and risk of non-severe hypoglycemia in adolescents with type 1 diabetes. J Diabetes Complications 2017; 31:1340-1347. [PMID: 28476567 PMCID: PMC5526710 DOI: 10.1016/j.jdiacomp.2017.04.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/29/2017] [Accepted: 04/16/2017] [Indexed: 12/12/2022]
Abstract
AIMS To determine the association between dietary intake and risk of non-severe hypoglycemia in adolescents with type 1 diabetes. METHODS Type 1 adolescents from a randomized trial wore a blinded continuous glucose monitoring (CGM) system at baseline for one week in free-living conditions. Dietary intake was calculated as the average from two 24-h dietary recalls. Non-severe hypoglycemia was defined as having blood glucose <70mg/dL for ≥10min but not requiring external assistance, categorized as daytime and nocturnal (11PM-7AM). Data were analyzed using logistic regression models. RESULTS Among 98 participants with 14,277h of CGM data, 70 had daytime hypoglycemia, 66 had nocturnal hypoglycemia, 55 had both, and 17 had neither. Soluble fiber and protein intake were positively associated with both daytime and nocturnal hypoglycemia. Glycemic index, monounsaturated fat, and polyunsaturated fat were negatively associated with daytime hypoglycemia only. Adjusting for total daily insulin dose per kilogram eliminated all associations. CONCLUSIONS Dietary intake was differentially associated with daytime and nocturnal hypoglycemia. Over 80% of type 1 adolescents had hypoglycemia in a week, which may be attributed to the mismatch between optimal insulin dose needed for each meal and actually delivered insulin dose without considering quality of carbohydrate and nutrients beyond carbohydrate. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT01286350.
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Affiliation(s)
- Victor W Zhong
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA
| | - Jamie L Crandell
- School of Nursing and Department of Biostatistics, University of North Carolina, Chapel Hill, NC, USA
| | - Christina M Shay
- Center for Health Metrics and Evaluation, the American Heart Association, Dallas, TX, USA
| | - Penny Gordon-Larsen
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA; Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Medicine, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Stephen R Cole
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Juhaeri Juhaeri
- Global Pharmacovigilance and Epidemiology, Sanofi, Bridgewater, NJ, USA
| | - Anna R Kahkoska
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA
| | - David M Maahs
- Lucile Packard Children's Hospital and Stanford University Medical Center, Stanford University, Palo Alto, CA, USA
| | - Michael Seid
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Gregory P Forlenza
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO, USA
| | - Elizabeth J Mayer-Davis
- Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA; Department of Medicine, School of Medicine, University of North Carolina, Chapel Hill, NC, USA.
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15
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Martyn-Nemeth P, Quinn L, Penckofer S, Park C, Hofer V, Burke L. Fear of hypoglycemia: Influence on glycemic variability and self-management behavior in young adults with type 1 diabetes. J Diabetes Complications 2017; 31:735-741. [PMID: 28143733 PMCID: PMC5350014 DOI: 10.1016/j.jdiacomp.2016.12.015] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/16/2016] [Accepted: 12/22/2016] [Indexed: 12/29/2022]
Abstract
PURPOSE The purpose of this study was to examine how fear of hypoglycemia (FOH) is associated with glycemic variability (GV) and self-management behavior in young adults (aged 18-35) with type 1 diabetes (T1DM). PROCEDURES Using a prospective repeated-measures design, in 35 young adults, within- and between-person and temporal associations of FOH, specific self-management behaviors, and GV were measured. The data were collected using questionnaires and real-time measures using daily diaries, insulin pump downloads, actigraphy, and continuous glucose monitoring. FINDINGS FOH was associated with greater glycemic variability. Significant temporal associations emerged. Concurrent day (glucose SD, p=.011) and previous-evening fear levels were associated with GV (glucose SD, p=.007). FOH was also associated with greater calorie intake (r=.492, p=.003) and less physical activity (light activity, r=-.341, p=.045). CONCLUSIONS The significant associations of FOH with GV, dietary patterns, and physical activity provide evidence for FOH as an important psychological factor associated with diabetes care.
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MESH Headings
- Adolescent
- Adult
- Anxiety/complications
- Anxiety/etiology
- Blood Glucose/analysis
- Chicago
- Combined Modality Therapy/adverse effects
- Combined Modality Therapy/psychology
- Cost of Illness
- Diabetes Complications/prevention & control
- Diabetes Complications/psychology
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/psychology
- Diabetes Mellitus, Type 1/therapy
- Diet, Diabetic/adverse effects
- Diet, Diabetic/psychology
- Exercise/psychology
- Female
- Health Knowledge, Attitudes, Practice
- Humans
- Hyperglycemia/prevention & control
- Hypoglycemia/prevention & control
- Insulin Infusion Systems/adverse effects
- Male
- Monitoring, Ambulatory/adverse effects
- Monitoring, Ambulatory/psychology
- Prospective Studies
- Psychiatric Status Rating Scales
- Self-Management/psychology
- Stress, Psychological/complications
- Stress, Psychological/etiology
- Young Adult
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Affiliation(s)
| | - Laurie Quinn
- University of Illinois at Chicago, College of Nursing, Chicago, IL
| | - Sue Penckofer
- Loyola University Chicago, Marcella Niehoff School of Nursing, Chicago, IL
| | - Chang Park
- University of Illinois at Chicago, College of Nursing, Chicago, IL
| | | | - Larisa Burke
- University of Illinois at Chicago, College of Nursing, Chicago, IL
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16
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Martyn-Nemeth P, Schwarz Farabi S, Mihailescu D, Nemeth J, Quinn L. Fear of hypoglycemia in adults with type 1 diabetes: impact of therapeutic advances and strategies for prevention - a review. J Diabetes Complications 2016; 30:167-77. [PMID: 26439754 DOI: 10.1016/j.jdiacomp.2015.09.003] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 09/01/2015] [Accepted: 09/04/2015] [Indexed: 02/01/2023]
Abstract
PURPOSE This review summarizes the current state of the science related to fear of hypoglycemia (FOH) in adults with type 1 diabetes. Fear of hypoglycemia is a critical deterrent to diabetes self-management, psychological well-being, and quality of life. We examine the influence of contemporary treatment regimens, technology, and interventions to identify gaps in knowledge and opportunities for research and practice. BASIC PROCEDURES A literature search was conducted of MEDLINE, PsycINFO, and EMBASE. Fifty-three studies that examined fear of hypoglycemia were included. MAIN FINDINGS Fear of hypoglycemia influences diabetes management and quality of life. Gender and age differences exist in experiences and responses. Responses vary from increased vigilance to potentially immobilizing distress. Fear of hypoglycemia is greater at night and may contribute to poor sleep quality. Strategies to reduce fear of hypoglycemia have had varying success. Newer technologies hold promise but require further examination. CONCLUSIONS Fear of hypoglycemia remains a problem, despite advances in technology, insulin analogs, and evidence-based diabetes management. Clinical care should consistently include assessment for its influence on diabetes self-management and psychological health. Further research is needed regarding the influence of newer technologies and individualized strategies to reduce fear of hypoglycemia while maintaining optimal glucose control.
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Affiliation(s)
- Pamela Martyn-Nemeth
- University of Illinois at Chicago, College of Nursing, Department of Biobehavioral Health Science, 845S. Damen Ave. (MC 802), Chicago, IL 60612.
| | - Sarah Schwarz Farabi
- University of Illinois at Chicago, College of Nursing, Department of Biobehavioral Health Science, 845S. Damen Ave. (MC 802), Chicago, IL 60612.
| | - Dan Mihailescu
- University of Illinois at Chicago, Department of Medicine, Chicago, IL 60612.
| | - Jeffrey Nemeth
- Linden Oaks, Edward Hospital and Health Center, Naperville, IL 60540.
| | - Laurie Quinn
- University of Illinois at Chicago, College of Nursing, Department of Biobehavioral Health Science, 845S. Damen Ave. (MC 802), Chicago, IL 60612.
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Franc S, Daoudi A, Pochat A, Petit MH, Randazzo C, Petit C, Duclos M, Penfornis A, Pussard E, Not D, Heyman E, Koukoui F, Simon C, Charpentier G. Insulin-based strategies to prevent hypoglycaemia during and after exercise in adult patients with type 1 diabetes on pump therapy: the DIABRASPORT randomized study. Diabetes Obes Metab 2015; 17:1150-7. [PMID: 26264812 PMCID: PMC5057323 DOI: 10.1111/dom.12552] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 08/06/2015] [Accepted: 08/06/2015] [Indexed: 12/15/2022]
Abstract
AIMS To validate strategies to prevent exercise-induced hypoglycaemia via insulin-dose adjustment in adult patients with type 1 diabetes (T1D) on pump therapy. METHODS A total of 20 patients randomly performed four 30-min late post-lunch (3 h after lunch) exercise sessions and a rest session: two moderate sessions [50% maximum oxygen consumption (VO2 max)] with 50 or 80% basal rate (BR) reduction during exercise + 2 h and two intense sessions (75% VO2 max) with 80% BR reduction or with their pump stopped. Two additional early post-lunch sessions (90 min after lunch) were analysed to compare hypoglycaemia incidence for BR reduction versus bolus reduction. RESULTS In all, 100 late post-lunch sessions were analysed. Regardless of exercise type and BR reduction, no more hypoglycaemic events occurred in the period until the next morning than occurred after the rest sessions. In the afternoon, no more hypoglycaemic events occurred with 80% BR reduction/moderate exercise or with pump discontinuation/intense exercise than for the rest session, whereas more hypoglycaemic events occurred with 50% BR reduction/moderate exercise and 80% BR reduction/intense exercise. After early post-lunch exercise (n = 37), a trend towards fewer hypoglycaemic episodes was observed with bolus reduction versus BR reduction (p = 0.07). Mean blood glucose fell by ∼3.3 mmol/l after 30 min of exercise, irrespective of dose reduction, remaining stable until the next morning with no rebound hyperglycaemia. CONCLUSION In adults with T1D, to limit the hypoglycaemic risk associated with 30 min of exercise 3 h after lunch, without carbohydrate supplements, the best options seem to be to reduce BR by 80% or to stop the pump for moderate or intense exercise, or for moderate exercise 90 min after lunch, to reduce the prandial bolus rather than the BR.
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Affiliation(s)
- S Franc
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
- Department of Diabetes, Sud-Francilien Hospital, Corbeil-Essonnes, France
| | - A Daoudi
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
| | - A Pochat
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
| | - M-H Petit
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
| | - C Randazzo
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
| | - C Petit
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
| | - M Duclos
- Department of Sport Medicine and Functional Exploration, Clermont-Ferrand University Hospital, UMR1019 CRNH, Clermont-Ferrand, France
| | - A Penfornis
- Department of Diabetes, Sud-Francilien Hospital, Corbeil-Essonnes, France
| | - E Pussard
- Molecular Genetics, Pharmacogenetics and Hormonology Laboratory, Bicêtre University Hospital, Kremlin-Bicêtre, France
| | | | - E Heyman
- 'Physical Activity, Muscle, Health' Research Team, URePSSS, University of Lille, Lille, France
| | - F Koukoui
- Department of Cardiology, Sud-Francilien Hospital, Corbeil-Essonnes, France
| | - C Simon
- Department of Endocrinology, Diabetes and Metabolic Diseases, Lyon Sud University Hospital, Pierre-Bénite, France
| | - G Charpentier
- Centre for Study and Research for Improvement of the Treatment of Diabetes (CERITD), Evry, France
- Department of Diabetes, Sud-Francilien Hospital, Corbeil-Essonnes, France
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18
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Weiss R, Garg SK, Bode BW, Bailey TS, Ahmann AJ, Schultz KA, Welsh JB, Shin JJ. Hypoglycemia Reduction and Changes in Hemoglobin A1c in the ASPIRE In-Home Study. Diabetes Technol Ther 2015; 17:542-7. [PMID: 26237308 PMCID: PMC4528987 DOI: 10.1089/dia.2014.0306] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND ASPIRE In-Home randomized 247 subjects with type 1 diabetes to sensor-augmented pump therapy with or without the Threshold Suspend (TS) feature, which interrupts insulin delivery at a preset sensor glucose value. We studied the effects of TS on nocturnal hypoglycemia (NH) in relation to baseline hemoglobin A1c (A1C) and change in A1C during the study. MATERIALS AND METHODS NH event rates and mean area under curve (AUC) of NH events were evaluated at different levels of baseline A1C (<7%, 7-8%, and >8%) and at different levels of changes in A1C (less than -0.3% [decreased], -0.3% to 0.3% [stable], and >0.3% [increased]), in the TS Group compared with the Control Group (sensor-augmented pump only). RESULTS In the TS Group, 27.9% of the NH events were accompanied by a confirmatory blood glucose value, compared with 39.3% in the Control Group. Among subjects with baseline A1C levels of <7% or 7-8%, those in the TS Group had significantly lower NH event rates than those in the Control Group (P=0.001 and P=0.004, respectively). Among subjects with decreased or stable A1C levels, those in the TS Group had significantly lower NH event rates, and the events had lower AUCs (P≤0.001 for each). Among subjects with increased A1C levels, those in the TS Group had NH events with significantly lower AUCs (P<0.001). CONCLUSIONS Use of the TS feature was associated with decreases in the rate and severity (as measured by AUC) of NH events in many subjects, including those with low baseline A1C levels and those whose A1C values decreased during the study period. Use of the TS feature can help protect against hypoglycemia in those wishing to intensify diabetes management to achieve target glucose levels.
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Affiliation(s)
- Ram Weiss
- Department of Human Metabolism and Nutrition and Section of Pediatric Endocrinology, Hadassah Hebrew University, Jerusalem, Israel
| | - Satish K. Garg
- Barbara Davis Center for Diabetes, University of Colorado Denver, Aurora, Colorado
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Wilson DM, Calhoun PM, Maahs DM, Chase HP, Messer L, Buckingham BA, Aye T, Clinton PK, Hramiak I, Kollman C, Beck RW. Factors associated with nocturnal hypoglycemia in at-risk adolescents and young adults with type 1 diabetes. Diabetes Technol Ther 2015; 17:385-91. [PMID: 25761202 PMCID: PMC4432491 DOI: 10.1089/dia.2014.0342] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Hypoglycemia remains an impediment to good glycemic control, with nocturnal hypoglycemia being particularly dangerous. Information on major contributors to nocturnal hypoglycemia remains critical for understanding and mitigating risk. MATERIALS AND METHODS Continuous glucose monitoring (CGM) data for 855 nights were studied, generated by 45 subjects 15-45 years of age with hemoglobin A1c (HbA1c) levels of ≤8.0% who participated in a larger randomized study. Factors assessed for potential association with nocturnal hypoglycemia (CGM measurement of <60 mg/dL for ≥30 min) included bedtime blood glucose (BG), exercise intensity, bedtime snack, insulin on board, day of the week, previous daytime hypoglycemia, age, gender, HbA1c level, diabetes duration, daily basal insulin, and daily insulin dose. RESULTS Hypoglycemia occurred during 221 of 885 (25%) nights and was more frequent with younger age (P<0.001), lower HbA1c levels (P=0.006), medium/high-intensity exercise during the preceding day (P=0.003), and the occurrence of antecedent daytime hypoglycemia (P=0.001). There was a trend for lower bedtime BG levels to be associated with more frequent nocturnal hypoglycemia (P=0.10). Bedtime snack, before bedtime insulin bolus, weekend versus weekday, gender, and daily basal and bolus insulin were not associated with nocturnal hypoglycemia. CONCLUSIONS Awareness that HbA1c level, exercise, bedtime BG level, and daytime hypoglycemia are all modifiable factors associated with nocturnal hypoglycemia may help patients and providers decrease the risk of hypoglycemia at night. Risk for nocturnal hypoglycemia increased in a linear fashion across the range of variables, with no clear-cut thresholds to guide clinicians or patients for any particular night.
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Affiliation(s)
| | | | - David M. Maahs
- Barbara Davis Center for Childhood Diabetes, Aurora, Colorado
| | - H. Peter Chase
- Barbara Davis Center for Childhood Diabetes, Aurora, Colorado
| | - Laurel Messer
- Barbara Davis Center for Childhood Diabetes, Aurora, Colorado
| | | | - Tandy Aye
- Stanford University, Stanford, California
| | | | | | | | - Roy W. Beck
- Jaeb Center for Health Research, Tampa, Florida
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Campbell MD, Walker M, Bracken RM, Turner D, Stevenson EJ, Gonzalez JT, Shaw JA, West DJ. Insulin therapy and dietary adjustments to normalize glycemia and prevent nocturnal hypoglycemia after evening exercise in type 1 diabetes: a randomized controlled trial. BMJ Open Diabetes Res Care 2015; 3:e000085. [PMID: 26019878 PMCID: PMC4442134 DOI: 10.1136/bmjdrc-2015-000085] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 03/10/2015] [Accepted: 03/17/2015] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Evening-time exercise is a frequent cause of severe hypoglycemia in type 1 diabetes, fear of which deters participation in regular exercise. Recommendations for normalizing glycemia around exercise consist of prandial adjustments to bolus insulin therapy and food composition, but this carries only short-lasting protection from hypoglycemia. Therefore, this study aimed to examine the impact of a combined basal-bolus insulin dose reduction and carbohydrate feeding strategy on glycemia and metabolic parameters following evening exercise in type 1 diabetes. METHODS Ten male participants (glycated hemoglobin: 52.4±2.2 mmol/mol), treated with multiple daily injections, completed two randomized study-days, whereby administration of total daily basal insulin dose was unchanged (100%), or reduced by 20% (80%). Participants attended the laboratory at ∼08:00 h for a fasted blood sample, before returning in the evening. On arrival (∼17:00 h), participants consumed a carbohydrate meal and administered a 75% reduced rapid-acting insulin dose and 60 min later performed 45 min of treadmill running. At 60 min postexercise, participants consumed a low glycemic index (LGI) meal and administered a 50% reduced rapid-acting insulin dose, before returning home. At ∼23:00 h, participants consumed a LGI bedtime snack and returned to the laboratory the following morning (∼08:00 h) for a fasted blood sample. Venous blood samples were analyzed for glucose, glucoregulatory hormones, non-esterified fatty acids, β-hydroxybutyrate, interleukin 6, and tumor necrosis factor α. Interstitial glucose was monitored for 24 h pre-exercise and postexercise. RESULTS Glycemia was similar until 6 h postexercise, with no hypoglycemic episodes. Beyond 6 h glucose levels fell during 100%, and nine participants experienced nocturnal hypoglycemia. Conversely, all participants during 80% were protected from nocturnal hypoglycemia, and remained protected for 24 h postexercise. All metabolic parameters were similar. CONCLUSIONS Reducing basal insulin dose with reduced prandial bolus insulin and LGI carbohydrate feeding provides protection from hypoglycemia during and for 24 h following evening exercise. This strategy is not associated with hyperglycemia, or adverse metabolic disturbances. CLINICAL TRIALS NUMBER NCT02204839, ClinicalTrials.gov.
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Affiliation(s)
- Matthew D Campbell
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Mark Walker
- Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - Richard M Bracken
- Diabetes Research Group, College of Medicine, Swansea University, Swansea, UK
| | - Daniel Turner
- Diabetes Research Group, College of Medicine, Swansea University, Swansea, UK
| | - Emma J Stevenson
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Javier T Gonzalez
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - James A Shaw
- Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - Daniel J West
- Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, UK
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Desjardins K, Brazeau AS, Strychar I, Leroux C, Gingras V, Rabasa-Lhoret R. Association between post-dinner dietary intakes and nocturnal hypoglycemic risk in adult patients with type 1 diabetes. Diabetes Res Clin Pract 2014; 106:420-7. [PMID: 25451901 DOI: 10.1016/j.diabres.2014.09.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 06/05/2014] [Accepted: 09/16/2014] [Indexed: 10/24/2022]
Abstract
AIMS To describe (i) current bedtime nutritional practices and (ii) the association between post-dinner dietary intake and the occurrence of non-severe nocturnal hypoglycemia (NH) in real-life conditions among adult patients with type 1 diabetes using insulin analogs. METHODS One hundred adults (median [interquartile range]: age 46.4 [36.0-55.8] years, HbA1c 7.9 [7.3-8.6] % (63 [56-70] mmol/mol)) using multiple daily injections (n=67) or insulin pump (n=33) wore a blinded continuous glucose monitoring system and completed a food diary for 72-h. RESULTS NH occurred on 28% of 282 nights analyzed. (i) Patients reported post-dinner dietary intakes on 63% of the evenings. They injected rapid-acting insulin boluses on 64 occasions (23% of 282 evenings). These insulin boluses were mostly injected with (n=37) dietary intakes. (ii) Post-dinner dietary intake was not associated with NH occurrence in univariate analyses. In multivariate analyses, the injection of rapid-acting insulin modulated the association between post-dinner dietary intake and NH: with insulin, post-dinner carbohydrate intake was positively associated with NH (odds ratio (OR): 1.16 [95% confidence interval, CI: 1.04-1.29] per 5g increase, p=0.008); without insulin, post-dinner protein intake was inversely associated with NH occurrence (OR [95% CI]: 0.88 [0.78-1.00] per 2g increase, p=0.048). CONCLUSIONS NH remains frequent in adults with type 1 diabetes. There is a complex relationship between post-dinner dietary intake and NH occurrence, including the significant role of nutrient content and rapid-acting insulin injection that requires further investigation.
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Affiliation(s)
- Katherine Desjardins
- Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada; Department of nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Anne-Sophie Brazeau
- Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada
| | - Irene Strychar
- Department of nutrition, Université de Montréal, Montreal, Quebec, Canada; Université de Montréal Hospital Research Center (CRCHUM), Montreal, Quebec, Canada; Montreal Diabetes Research Center (MDRC), Montreal, Quebec, Canada
| | - Catherine Leroux
- Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada; Department of nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Véronique Gingras
- Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada; Department of nutrition, Université de Montréal, Montreal, Quebec, Canada
| | - Rémi Rabasa-Lhoret
- Institut de Recherches Cliniques de Montréal (IRCM), Montreal, Quebec, Canada; Department of nutrition, Université de Montréal, Montreal, Quebec, Canada; Montreal Diabetes Research Center (MDRC), Montreal, Quebec, Canada; Division of Endocrinology, Department of Medicine of the Université de Montréal Hospital Center (CHUM), Montreal, Quebec, Canada.
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Review of reviews 2014: a virtual issue. Diabetes Obes Metab 2014; 16:481-2. [PMID: 24883450 DOI: 10.1111/dom.12279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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