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Mei J, Li Y, Niu L, Liang R, Tang M, Cai Q, Xu J, Zhang D, Yin X, Liu X, Shen Y, Liu J, Xu M, Xia P, Ling J, Wu Y, Liang J, Zhang J, Yu P. SGLT2 inhibitors: a novel therapy for cognitive impairment via multifaceted effects on the nervous system. Transl Neurodegener 2024; 13:41. [PMID: 39123214 PMCID: PMC11312905 DOI: 10.1186/s40035-024-00431-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/11/2024] [Indexed: 08/12/2024] Open
Abstract
The rising prevalence of diabetes mellitus has casted a spotlight on one of its significant sequelae: cognitive impairment. Sodium-glucose cotransporter-2 (SGLT2) inhibitors, originally developed for diabetes management, are increasingly studied for their cognitive benefits. These benefits may include reduction of oxidative stress and neuroinflammation, decrease of amyloid burdens, enhancement of neuronal plasticity, and improved cerebral glucose utilization. The multifaceted effects and the relatively favorable side-effect profile of SGLT2 inhibitors render them a promising therapeutic candidate for cognitive disorders. Nonetheless, the application of SGLT2 inhibitors for cognitive impairment is not without its limitations, necessitating more comprehensive research to fully determine their therapeutic potential for cognitive treatment. In this review, we discuss the role of SGLT2 in neural function, elucidate the diabetes-cognition nexus, and synthesize current knowledge on the cognitive effects of SGLT2 inhibitors based on animal studies and clinical evidence. Research gaps are proposed to spur further investigation.
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Affiliation(s)
- Jiaqi Mei
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Huan Kui College of Nanchang University, Nanchang, China
| | - Yi Li
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Huan Kui College of Nanchang University, Nanchang, China
| | - Liyan Niu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Huan Kui College of Nanchang University, Nanchang, China
| | - Ruikai Liang
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Mingyue Tang
- Queen Mary College of Nanchang University, Nanchang, China
| | - Qi Cai
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jingdong Xu
- Queen Mary College of Nanchang University, Nanchang, China
| | - Deju Zhang
- Food and Nutritional Sciences, School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xiaoping Yin
- Department of Neurology, Affiliated Hospital of Jiujiang University, Jiujiang, China
| | - Xiao Liu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yunfeng Shen
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianping Liu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Minxuan Xu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Panpan Xia
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jitao Ling
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yuting Wu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianqi Liang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Peng Yu
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, China.
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Brown KM, Glaser NS, McManemy JK, DePiero A, Nigrovic LE, Quayle KS, Stoner MJ, Schunk JE, Trainor JL, Tzimenatos L, Rewers A, Myers SR, Kwok MY, Ghetti S, Casper TC, Olsen CS, Kuppermann N. Rehydration Rates and Outcomes in Overweight Children With Diabetic Ketoacidosis. Pediatrics 2023; 152:e2023062004. [PMID: 37920947 PMCID: PMC10657773 DOI: 10.1542/peds.2023-062004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/24/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The Pediatric Emergency Care Applied Research Network Fluid Therapies Under Investigation in Diabetic Ketoacidosis (DKA) (FLUID) Trial found that rapid fluid infusion does not increase the risk of cerebral injury. Concern persists, however, whether fluid rates should be adjusted for overweight or obese patients. We used the FLUID Trial database to evaluate associations between fluid infusion rate and outcomes in these patients. METHODS We compared children and youth who were overweight, obese, or normal weight, in regard to protocol adherence, mental status changes, time to DKA resolution, and electrolyte abnormalities. We investigated associations between outcomes and the amount of fluid received in these groups. RESULTS Obese children and youth were more likely to receive fluids at rates slower than dictated by protocol. Overweight and obese children and youth in the fast fluid arms, who received fluids per the study protocol based on their measured weight, had similar rates of mental status changes or clinically apparent cerebral injury as those with normal weights. Risk of hypophosphatemia was increased in those receiving larger initial bolus volumes and reduced in those receiving higher rehydration rates. No other metabolic outcomes were associated with rehydration. CONCLUSIONS Protocol adherence data in the FLUID Trial suggest that physicians are uncomfortable using weight-based fluid calculations for overweight or obese children. However, higher rates of fluid infusion were not associated with increased risk of mental status changes or cerebral injury, suggesting that physicians should not limit fluid resuscitation in obese children and youth with DKA.
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Affiliation(s)
- Kathleen M. Brown
- Division of Emergency Medicine, Department of Pediatrics, Children’s National Medical Center, the George Washington School of Medicine and Health Sciences, Washington, District of Columbia
| | | | - Julie K. McManemy
- Division of Emergency Medicine, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, Texas
| | - Andrew DePiero
- Division of Emergency Medicine, Nemours/A.I. DuPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Lise E. Nigrovic
- Division of Emergency Medicine, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kimberly S. Quayle
- Division of Emergency Medicine, Department of Pediatrics, St Louis Children’s Hospital, Washington University School of Medicine in St Louis, St Louis, Missouri
| | - Michael J. Stoner
- Division of Emergency Medicine, Department of Pediatrics, Nationwide Children’s Hospital, The Ohio State University School of Medicine, Columbus, Ohio
| | - Jeff E. Schunk
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah
| | - Jennifer L. Trainor
- Division of Emergency Medicine, Department of Pediatrics, Ann & Robert H. Lurie Children’s Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Leah Tzimenatos
- Emergency Medicine, University of California Davis Health, University of California, Davis, School of Medicine, Sacramento, California
| | - Arleta Rewers
- Division of Emergency Medicine, Department of Pediatrics, the Colorado Children’s Hospital, University of Colorado-Denver School of Medicine, Aurora, Colorado
| | - Sage R. Myers
- Division of Emergency Medicine, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Maria Y. Kwok
- Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children’s Hospital, Columbia University College of Physicians and Surgeons, New York, New York
| | - Simona Ghetti
- Department of Psychology, University of California, Davis, Davis, California
| | - T. Charles Casper
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah
| | - Cody S. Olsen
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah
| | - Nathan Kuppermann
- Departments of Pediatrics
- Emergency Medicine, University of California Davis Health, University of California, Davis, School of Medicine, Sacramento, California
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Parmentier C, Ray S, Mazilescu LI, Kawamura M, Noguchi Y, Nogueira E, Ganesh S, Arulratnam B, Kalimuthu SN, Selzner M, Reichman TW. Normothermic Ex Vivo Machine Perfusion of Discarded Human Pancreas Allografts: A Feasibility Study. Transpl Int 2023; 36:10936. [PMID: 37252614 PMCID: PMC10210159 DOI: 10.3389/ti.2023.10936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 04/28/2023] [Indexed: 05/31/2023]
Abstract
Pancreas transplantation is the only curative treatment for patients with complicated diabetes, and organ shortage is a common and increasing problem. Strategies to expand the donor pool are needed, and normothermic ex vivo perfusion of the pancreas has the potential to test and repair grafts before implantation. Between January 2021 and April 2022, six human pancreases, declined for transplantation or islet isolation, were perfused using a previously established method by our group. All 6 cases were successfully perfused for 4 h, with minimal edema. The mean age of the donors was 44.16 ± 13.8 years. Five grafts were obtained from neurological death donors, and one was obtained from a donation after cardiac death. The mean glucose and lactate levels decreased throughout perfusion and insulin levels increased. All 6 grafts were metabolically active during perfusion and histopathology showed minimal tissue injury and no edema. Human normothermic ex vivo perfusion of the pancreas is feasible and safe and has the potential to expand the donor pool. Future studies will focus on tests and biomarkers for the assessment of grafts.
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Affiliation(s)
- Catherine Parmentier
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Samrat Ray
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Laura I. Mazilescu
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
- Essen University Hospital, Essen, North Rhine-Westphalia, Germany
| | - Masataka Kawamura
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Yuki Noguchi
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Emmanuel Nogueira
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Sujani Ganesh
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Bhranavi Arulratnam
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Sangeetha N. Kalimuthu
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Markus Selzner
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
| | - Trevor W. Reichman
- Toronto General Hospital, Toronto, ON, Canada
- University Health Network (UHN), Toronto, ON, Canada
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Glaser N, Fritsch M, Priyambada L, Rewers A, Cherubini V, Estrada S, Wolfsdorf JI, Codner E. ISPAD clinical practice consensus guidelines 2022: Diabetic ketoacidosis and hyperglycemic hyperosmolar state. Pediatr Diabetes 2022; 23:835-856. [PMID: 36250645 DOI: 10.1111/pedi.13406] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 01/01/2023] Open
Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, Section of Endocrinology, University of California, Davis School of Medicine, Sacramento, California, USA
| | - Maria Fritsch
- Department of Pediatric and Adolescent Medicine, Division of General Pediatrics, Medical University of Graz, Austria Medical University of Graz, Graz, Austria
| | - Leena Priyambada
- Division of Pediatric Endocrinology, Rainbow Children's Hospital, Hyderabad, India
| | - Arleta Rewers
- Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Valentino Cherubini
- Department of Women's and Children's Health, G. Salesi Hospital, Ancona, Italy
| | - Sylvia Estrada
- Department of Pediatrics, Division of Endocrinology and Metabolism, University of the Philippines, College of Medicine, Manila, Philippines
| | - Joseph I Wolfsdorf
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Ethel Codner
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santiago, Chile
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Edwards VM, Procter C, Jones AJ, Randle E, Ramnarayan P. Adherence to the 2015 and 2020 British Society of Paediatric Endocrinology and Diabetes guidelines and outcomes in critically ill children with diabetic ketoacidosis: a retrospective cohort study. Arch Dis Child 2022; 107:929-933. [PMID: 35710720 DOI: 10.1136/archdischild-2021-323641] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 05/26/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To compare clinical management and key outcomes of critically ill children with diabetic ketoacidosis (DKA) in two cohorts (2015 cohort: managed according to the 2015 British Society of Paediatric Endocrinology and Diabetes (BSPED) guidelines; 2020 cohort: managed according to the 2020 BSPED guidelines). DESIGN Retrospective cohort study using prospectively collected data. SETTING A critical care advice and transport service based in London, and referring hospitals within the critical care network. PATIENTS All children 0-17 years referred for advice and/or critical care transport with a clinical diagnosis of DKA over a 30-month period (from September 2018 to March 2021). INTERVENTIONS None. MAIN OUTCOME MEASURES Admission to intensive care unit (ICU), clinically diagnosed cerebral oedema and death. RESULTS There were significant differences in fluid and insulin administration practices between the 2015 and 2020 cohorts (fluid bolus >20 mL/kg: 3% vs 30%, p<0.001; median total fluid given in the first 24 hours: 84 mL/kg vs 117 mL/kg, p<0.01; starting insulin infusion rate 0.1 U/kg/hour: 54% vs 31%, p<0.01). However, these differences were consistent with guideline recommendations (initial fluid infusion rate within 5% of guideline-recommended rate: 80% in the 2015 group vs 84% in the 2020 group). There were no significant differences in outcomes (ICU admission: 26% vs 35%, p=0.2; cerebral oedema: 21% vs 23%, p=0.8). CONCLUSIONS Our study findings indicate that changes to fluid and insulin administration occurred after the 2020 BSPED guideline publication, with strong adherence to the guideline, but these changes were not associated with changes in key outcomes.
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Affiliation(s)
- Victoria Mary Edwards
- Children's Acute Transport Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Department of Anaesthetics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Claire Procter
- Department of Paediatrics, Red Cross Children's Hospital, Cape Town, South Africa
| | - Andrew J Jones
- Children's Acute Transport Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Elise Randle
- Children's Acute Transport Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Padmanabhan Ramnarayan
- Children's Acute Transport Service, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
- Anaesthetics, Pain Medicine and Intensive Care Section, Department of Surgery, Imperial College London Faculty of Medicine, London, UK
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Taylor RM, Baca JT. Feasibility of Interstitial Fluid Ketone Monitoring with Microneedles. Metabolites 2022; 12:metabo12050424. [PMID: 35629928 PMCID: PMC9146213 DOI: 10.3390/metabo12050424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 12/10/2022] Open
Abstract
Diabetic ketoacidosis (DKA) is one of the most dangerous and costly complications of diabetes, accounting for approximately 50% of deaths in diabetic individuals under 24 years. This results in over 130,000 hospital admissions yearly and costs the USA over USD 2.4 billion annually. Earlier diagnosis, treatment, and management of DKA are of critical importance to achieving better patient outcomes and preventing prolonged hospital admissions. Diabetic patients undergoing stress from illness or injury may not recognize early ketosis and often present advanced ketoacidosis, requiring intensive care admission. We have recently developed a microneedle-based technology to extract dermal interstitial fluid (ISF) from both animals and humans, which could enable wearable sensors to rapidly detect ketosis. Metabolite concentrations in ISF may differ in urine and blood and could likely represent local metabolic conditions in the surrounding tissue. Development of a wearable ketone detector will require an understanding of ketone concentrations and kinetics in ISF. Here, we report data that is first of its kind, with regard to the ketone concentrations present in the dermal ISF of rats, their correlation to blood, and the possible impact on the development of a wearable ISF "early warning system" to prevent morbidity from DKA. We extracted ISF, using minimally invasive microneedle arrays, from control Sprague Dawley rats and 17 h fasted rats. ISF and blood ketone levels were measured using a common glucose/ketone meter and strips. Local tissue concentrations of glucose were similar to those of blood, with an average blood to ISF glucose ratio of 0.99 ± 0.15 mg/dL. ISF ketones (0.4 ± 0.3 mM) were significantly higher (p = 4.2 × 10-9), compared with blood ketones (0.0 ± 0.0 mM). Although the fasted animals had slightly higher ISF ketones (1.3 ± 1.1 mM) compared with blood ketones (1.0 ± 1.0 mM), the difference was not significant (p = 0.3). This suggests ISF could possibly be useful as a surrogate for blood when determining ketone levels within a clinical setting.
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Petroulia VD, Kurmann C, Haenggi M, Wagner F, Hakim A. Reversible global hypoperfusion in an adult patient with a mixed diabetic ketoacidosis/hyperglycemic hyperosmolar coma: A case report. Clin Case Rep 2022; 10:e05576. [PMID: 35414918 PMCID: PMC8979142 DOI: 10.1002/ccr3.5576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 11/08/2022] Open
Abstract
Diabetic ketoacidosis is a severe complication of diabetes mellitus. We report a case of global hypoperfusion in an elderly patient on CT, with complete resolution shown on early MRI follow-up. Metabolic causes have always to be included in the differential diagnosis of diffuse hypoperfusion in the appropriate clinical setting.
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Affiliation(s)
- Valentina Dafni Petroulia
- University Institute of Diagnostic and Interventional Neuroradiology, InselspitalBern University Hospital, and University of BernBernSwitzerland
| | - Christoph Kurmann
- University Institute of Diagnostic and Interventional Neuroradiology, InselspitalBern University Hospital, and University of BernBernSwitzerland
| | - Matthias Haenggi
- Department of Intensive Care Medicine, InselspitalBern University Hospital, and University of BernBernSwitzerland
| | - Franca Wagner
- University Institute of Diagnostic and Interventional Neuroradiology, InselspitalBern University Hospital, and University of BernBernSwitzerland
| | - Arsany Hakim
- University Institute of Diagnostic and Interventional Neuroradiology, InselspitalBern University Hospital, and University of BernBernSwitzerland
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8
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Williams V, Mohandoss V. Portending Complications in Pediatric Diabetic Ketoacidosis. Indian J Crit Care Med 2021; 25:1339-1340. [PMID: 35027790 PMCID: PMC8693108 DOI: 10.5005/jp-journals-10071-24064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
How to cite this article: Williams V, Mohandoss V. Portending Complications in Pediatric Diabetic Ketoacidosis. Indian J Crit Care Med 2021;25(12):1339-1340.
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Affiliation(s)
- Vijai Williams
- Department of Critical Care, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
| | - Vichithra Mohandoss
- Department of Pediatrics, Saveetha Medical College and Hospital, Chennai, Tamil Nadu, India
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Savardi A, Borgogno M, De Vivo M, Cancedda L. Pharmacological tools to target NKCC1 in brain disorders. Trends Pharmacol Sci 2021; 42:1009-1034. [PMID: 34620512 DOI: 10.1016/j.tips.2021.09.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/27/2021] [Accepted: 09/08/2021] [Indexed: 02/06/2023]
Abstract
The chloride importer NKCC1 and the chloride exporter KCC2 are key regulators of neuronal chloride concentration. A defective NKCC1/KCC2 expression ratio is associated with several brain disorders. Preclinical/clinical studies have shown that NKCC1 inhibition by the United States FDA-approved diuretic bumetanide is a potential therapeutic strategy in preclinical/clinical studies of multiple neurological conditions. However, bumetanide has poor brain penetration and causes unwanted diuresis by inhibiting NKCC2 in the kidney. To overcome these issues, a growing number of studies have reported more brain-penetrating and/or selective bumetanide prodrugs, analogs, and new molecular entities. Here, we review the evidence for NKCC1 pharmacological inhibition as an effective strategy to manage neurological disorders. We also discuss the advantages and limitations of bumetanide repurposing and the benefits and risks of new NKCC1 inhibitors as therapeutic agents for brain disorders.
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Affiliation(s)
- Annalisa Savardi
- Brain Development and Disease Laboratory, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genoa, Italy; Dulbecco Telethon Institute, 00185 Rome, Italy; Molecular Modeling and Drug Discovery Laboratory, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genoa, Italy
| | - Marco Borgogno
- Molecular Modeling and Drug Discovery Laboratory, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genoa, Italy
| | - Marco De Vivo
- Molecular Modeling and Drug Discovery Laboratory, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genoa, Italy.
| | - Laura Cancedda
- Brain Development and Disease Laboratory, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genoa, Italy; Dulbecco Telethon Institute, 00185 Rome, Italy.
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Azova S, Rapaport R, Wolfsdorf J. Brain injury in children with diabetic ketoacidosis: Review of the literature and a proposed pathophysiologic pathway for the development of cerebral edema. Pediatr Diabetes 2021; 22:148-160. [PMID: 33197066 PMCID: PMC10127934 DOI: 10.1111/pedi.13152] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/06/2020] [Accepted: 10/29/2020] [Indexed: 01/24/2023] Open
Abstract
Cerebral edema (CE) is a potentially devastating complication of diabetic ketoacidosis (DKA) that almost exclusively occurs in children. Since its first description in 1936, numerous risk factors have been identified; however, there continues to be uncertainty concerning the mechanisms that lead to its development. Currently, the most widely accepted hypothesis posits that CE occurs as a result of ischemia-reperfusion injury, with inflammation and impaired cerebrovascular autoregulation contributing to its pathogenesis. The role of specific aspects of DKA treatment in the development of CE continues to be controversial. This review critically examines the literature on the pathophysiology of CE and attempts to categorize the findings by types of brain injury that contribute to its development: cytotoxic, vasogenic, and osmotic. Utilizing this scheme, we propose a multifactorial pathway for the development of CE in patients with DKA.
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Affiliation(s)
- Svetlana Azova
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Robert Rapaport
- Division of Pediatric Endocrinology and Diabetes, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Joseph Wolfsdorf
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
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Myers SR, Glaser NS, Trainor JL, Nigrovic LE, Garro A, Tzimenatos L, Quayle KS, Kwok MY, Rewers A, Stoner MJ, Schunk JE, McManemy JK, Brown KM, DePiero AD, Olsen CS, Casper TC, Ghetti S, Kuppermann N. Frequency and Risk Factors of Acute Kidney Injury During Diabetic Ketoacidosis in Children and Association With Neurocognitive Outcomes. JAMA Netw Open 2020; 3:e2025481. [PMID: 33275152 PMCID: PMC7718599 DOI: 10.1001/jamanetworkopen.2020.25481] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
IMPORTANCE Acute kidney injury (AKI) occurs commonly during diabetic ketoacidosis (DKA) in children, but the underlying mechanisms and associations are unclear. OBJECTIVE To investigate risk factors for AKI and its association with neurocognitive outcomes in pediatric DKA. DESIGN, SETTING, AND PARTICIPANTS This cohort study was a secondary analysis of data from the Pediatric Emergency Care Applied Research Network Fluid Therapies Under Investigation in DKA Study, a prospective, multicenter, randomized clinical trial comparing fluid protocols for pediatric DKA in 13 US hospitals. Included DKA episodes occurred among children age younger than 18 years with blood glucose 300 mg/dL or greater and venous pH less than 7.25 or serum bicarbonate level less than 15 mEq/L. EXPOSURES DKA requiring intravenous insulin therapy. MAIN OUTCOMES AND MEASURES AKI occurrence and stage were assessed using serum creatinine measurements using Kidney Disease: Improving Global Outcomes criteria. DKA episodes with and without AKI were compared using univariable and multivariable methods, exploring associated factors. RESULTS Among 1359 DKA episodes (mean [SD] patient age, 11.6 [4.1] years; 727 [53.5%] girls; 651 patients [47.9%] with new-onset diabetes), AKI occurred in 584 episodes (43%; 95% CI, 40%-46%). A total of 252 AKI events (43%; 95% CI, 39%-47%) were stage 2 or 3. Multivariable analyses identified older age (adjusted odds ratio [AOR] per 1 year, 1.05; 95% CI, 1.00-1.09; P = .03), higher initial serum urea nitrogen (AOR per 1 mg/dL increase, 1.14; 95% CI, 1.11-1.18; P < .001), higher heart rate (AOR for 1-SD increase in z-score, 1.20; 95% CI, 1.09-1.32; P < .001), higher glucose-corrected sodium (AOR per 1 mEq/L increase, 1.03; 95% CI, 1.00-1.06; P = .001) and glucose concentrations (AOR per 100 mg/dL increase, 1.19; 95% CI, 1.07-1.32; P = .001), and lower pH (AOR per 0.1 increase, 0.63; 95% CI, 0.51-0.78; P < .001) as variables associated with AKI. Children with AKI, compared with those without, had lower scores on tests of short-term memory during DKA (mean [SD] digit span recall: 6.8 [2.4] vs 7.6 [2.2]; P = .02) and lower mean (SD) IQ scores 3 to 6 months after recovery from DKA (100.0 [12.2] vs 103.5 [13.2]; P = .005). Differences persisted after adjusting for DKA severity and demographic factors, including socioeconomic status. CONCLUSIONS AND RELEVANCE These findings suggest that AKI may occur more frequently in children with greater acidosis and circulatory volume depletion during DKA and may be part of a pattern of multiple organ injury involving the kidneys and brain.
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Affiliation(s)
- Sage R. Myers
- Division of Emergency Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Nicole S. Glaser
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento
| | - Jennifer L. Trainor
- Division of Emergency Medicine, Ann and Robert H. Lurie Children’s Hospital, Chicago, Illinois
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Lise E. Nigrovic
- Division of Emergency Medicine, Boston Children’s Hospital, Boston, Massachusetts
- Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Aris Garro
- Department of Emergency Medicine, Rhode Island Hospital, Providence
- Department of Pediatrics, Warren Alpert Medical School, Brown University, Providence, Rhode Island
| | - Leah Tzimenatos
- Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento
| | - Kimberly S. Quayle
- Division of Emergency Medicine, St Louis Children’s Hospital, St Louis, Missouri
- Department of Pediatrics, Washington University School of Medicine in St Louis, St Louis, Missouri
| | - Maria Y. Kwok
- Division of Emergency Medicine, NewYork-Presbyterian Morgan Stanley Children’s Hospital, New York
- Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York
| | - Arleta Rewers
- Division of Emergency Medicine, Colorado Children’s Hospital, Denver
- Department of Pediatrics, University of Colorado–Denver School of Medicine, Aurora
| | - Michael J. Stoner
- Division of Emergency Medicine, Nationwide Children’s Hospital, Columbus, Ohio
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus
| | - Jeff E. Schunk
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City
| | - Julie K. McManemy
- Division of Emergency Medicine, Texas Children’s Hospital, Houston
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Kathleen M. Brown
- Division of Emergency Medicine, Children’s National Medical Center, Washington, District of Columbia
- Department of Pediatrics, George Washington School of Medicine and Health Sciences, Washington, District of Columbia
| | - Andrew D. DePiero
- Division of Emergency Medicine, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware
- Department of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Cody S. Olsen
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City
| | - T. Charles Casper
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City
| | - Simona Ghetti
- Department of Psychology, UC Davis Health, University of California School of Medicine, Sacramento
| | - Nathan Kuppermann
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento
- Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento
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12
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Pitocco D, Di Leo M, Tartaglione L, Rizzo EG, Caputo S, Rizzi A, Pontecorvi A. An Approach to Diabetic Ketoacidosis in an Emergency Setting. Rev Recent Clin Trials 2020; 15:278-288. [PMID: 32646361 DOI: 10.2174/1574887115666200709172402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetic Ketoacidosis (DKA) is one of the most commonly encountered diabetic complication emergencies. It typically affects people with type 1 diabetes at the onset of the disease. It can also affect people with type 2 diabetes, although this is uncommon. METHODS Research and online content related to diabetes online activity is reviewed. DKA is caused by a relative or absolute deficiency of insulin and elevated levels of counter-regulatory hormones. RESULTS Goals of therapy are to correct dehydration, acidosis, and to reverse ketosis, gradually restoring blood glucose concentration to near normal. CONCLUSION It is essential to monitor potential complications of DKA and, if necessary, to treat them and any precipitating events.
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Affiliation(s)
- Dario Pitocco
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Mauro Di Leo
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Linda Tartaglione
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Emanuele Gaetano Rizzo
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Salvatore Caputo
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Alessandro Rizzi
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
| | - Alfredo Pontecorvi
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo Agostino Gemelli, Roma, Italy
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13
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Lacy ME, Gilsanz P, Eng CW, Beeri MS, Karter AJ, Whitmer RA. Recurrent diabetic ketoacidosis and cognitive function among older adults with type 1 diabetes: findings from the Study of Longevity in Diabetes. BMJ Open Diabetes Res Care 2020; 8:8/1/e001173. [PMID: 32546548 PMCID: PMC7299028 DOI: 10.1136/bmjdrc-2020-001173] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/25/2020] [Accepted: 05/04/2020] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION Diabetic ketoacidosis (DKA) is a serious complication of diabetes. DKA is associated with poorer cognition in children with type 1 diabetes (T1D), but whether this is the case in older adults with T1D is unknown. Given the increasing life expectancy in T1D, understanding the role of DKA on brain health in older adults is crucial. RESEARCH DESIGN AND METHODS We examined the association of DKA with cognitive function in 714 older adults with T1D from the Study of Longevity in Diabetes. Participants self-reported lifetime exposure to DKA resulting in hospitalization; DKA was categorized into 0 hospitalization, 1 hospitalization or ≥2 hospitalizations (recurrent DKA). Global and domain-specific cognition (language, executive function/psychomotor speed, episodic memory and simple attention) were assessed. The association of DKA with cognitive function was evaluated via linear and logistic regression models. RESULTS Twenty-eight percent of participants (mean age=67 years; mean age at diagnosis=28 years; average duration of diabetes=39 years) reported a lifetime history of DKA resulting in hospitalization (18.5% single DKA; 9.7% recurrent DKA). In fully adjusted models, those with recurrent DKA had lower global cognitive function (β=-0.13; 95% CI -0.22 to 0.02) and lower scores on the executive function/psychomotor speed domain (β=-0.34; 95% CI -0.51 to 0.17). Individuals with recurrent DKA were also more likely to have the lowest level of cognitive function on the executive function/psychomotor speed domain (defined as 1.5 SD below the population mean; OR=3.26, 95% CI 1.43 to 7.42). CONCLUSIONS Among 714 older adults with T1D, recurrent DKA was associated with lower global cognitive function, lower scores on the executive function/psychomotor speed domain and 3.3 times greater risk of having the lowest level of cognitive function in our sample on the executive function/psychomotor speed domain. These findings suggest that recurrent DKA may negatively impact the brain health of older patients with T1D and highlight the importance of DKA prevention.
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Affiliation(s)
- Mary E Lacy
- Department of Epidemiology, University of Kentucky, Lexington, Kentucky, USA
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Paola Gilsanz
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Chloe W Eng
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Michal S Beeri
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Joseph Sagol Neuroscience, Sheba Medical Center, Tel HaShomer, Israel
| | - Andrew J Karter
- Division of Research, Kaiser Permanente, Bainbridge Island, Washington, USA
| | - Rachel A Whitmer
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
- Department of Epidemiology, University of California Davis School of Medicine, Davis, California, USA
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14
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Effects of Diabetic Ketoacidosis on Executive Function in Children With Type 1 Diabetes: Evidence From Wisconsin Card Sorting Test Performance. Psychosom Med 2020; 82:359-365. [PMID: 32358324 DOI: 10.1097/psy.0000000000000797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Diabetic ketoacidosis (DKA) in patients with type 1 diabetes mellitus (T1DM) is known to affect memory function, but little is known about its impact on executive function. This study aimed to determine whether a history of DKA was associated with changes in executive function in children with T1DM. METHODS The sample consisted of 99 patients with T1DM with histories of DKA, 82 patients with T1DM without DKA, and 100 healthy controls aged 7 to 18 years. Neuropsychological function and emotion assessments were performed in all participants. The Wisconsin Card Sorting Test (WCST) was used to assess executive function. RESULTS Compared with healthy controls, the DKA group (but not the non-DKA group) had a significantly lower mean intelligence quotient (IQ; p = .006, Cohen d = 0.528) and a significantly higher rate of WCST perseverative errors (p = .006, Cohen d = 0.475). In the DKA group, the age at DKA onset was significantly associated with the IQ (p = .001) and the number of completed WCST categories (p = .046). Higher hemoglobin A1c levels were associated significantly with lower IQ (p < .001), increased rate of WCST perseverative errors (p = .015), and completion of fewer WCST categories (p = .027). CONCLUSIONS DKA has implications for executive function in children with T1DM. These findings emphasize the importance of DKA prevention in patients with known T1DM, especially younger children with newly diagnosed T1DM.
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15
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Suzumura A, Kaneko H, Funahashi Y, Takayama K, Nagaya M, Ito S, Okuno T, Hirakata T, Nonobe N, Kataoka K, Shimizu H, Namba R, Yamada K, Ye F, Ozawa Y, Yokomizo T, Terasaki H. n-3 Fatty Acid and Its Metabolite 18-HEPE Ameliorate Retinal Neuronal Cell Dysfunction by Enhancing Müller BDNF in Diabetic Retinopathy. Diabetes 2020; 69:724-735. [PMID: 32029482 DOI: 10.2337/db19-0550] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 01/22/2020] [Indexed: 11/13/2022]
Abstract
Diabetic retinopathy (DR) is a widespread vision-threatening disease, and neuroretinal abnormality should be considered as an important problem. Brain-derived neurotrophic factor (BDNF) has recently been considered as a possible treatment to prevent DR-induced neuroretinal damage, but how BDNF is upregulated in DR remains unclear. We found an increase in hydrogen peroxide (H2O2) in the vitreous of patients with DR. We confirmed that human retinal endothelial cells secreted H2O2 by high glucose, and H2O2 reduced cell viability of MIO-M1, Müller glia cell line, PC12D, and the neuronal cell line and lowered BDNF expression in MIO-M1, whereas BDNF administration recovered PC12D cell viability. Streptozocin-induced diabetic rats showed reduced BDNF, which is mainly expressed in the Müller glia cell. Oral intake of eicosapentaenoic acid ethyl ester (EPA-E) ameliorated BDNF reduction and oscillatory potentials (OPs) in electroretinography (ERG) in DR. Mass spectrometry revealed an increase in several EPA metabolites in the eyes of EPA-E-fed rats. In particular, an EPA metabolite, 18-hydroxyeicosapentaenoic acid (18-HEPE), induced BDNF upregulation in Müller glia cells and recovery of OPs in ERG. Our results indicated diabetes-induced oxidative stress attenuates neuroretinal function, but oral EPA-E intake prevents retinal neurodegeneration via BDNF in Müller glia cells by increasing 18-HEPE in the early stages of DR.
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Affiliation(s)
- Ayana Suzumura
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroki Kaneko
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhito Funahashi
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kei Takayama
- Department of Ophthalmology, National Defense Medical College, Tokorozawa, Japan
| | - Masatoshi Nagaya
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Seina Ito
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Toshiaki Hirakata
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norie Nonobe
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Kataoka
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideyuki Shimizu
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Rina Namba
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuhisa Yamada
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fuxiang Ye
- Department of Ophthalmology, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yoko Ozawa
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroko Terasaki
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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16
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Sun L, Diao X, Gang X, Lv Y, Zhao X, Yang S, Gao Y, Wang G. Risk Factors for Cognitive Impairment in Patients with Type 2 Diabetes. J Diabetes Res 2020; 2020:4591938. [PMID: 32377520 PMCID: PMC7196145 DOI: 10.1155/2020/4591938] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/07/2020] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES To investigate the risk factors for cognitive impairment in Chinese type 2 diabetes mellitus (T2DM) patients of advanced age and to identify effective biomarkers of mild cognitive impairment (MCI) in these patients. METHODS Chinese T2DM patients (n = 120) aged 50-70 years were divided into groups with impaired (mild, moderate, and severe) and normal cognitive function based on Montreal Cognitive Assessment and Mini-Mental State Examination scores. Data regarding demographic characteristics, clinical features of diabetes, biochemical markers, and metabolomics were collected. RESULTS Age, educational level, duration of diabetes, fasting blood glucose (FBG), HbA1c, total cholesterol (TC), triglyceride (TG), and 24-hour urine protein were significantly associated with cognitive impairment in T2DM patients of advanced age. The severity of fundus retinopathy and the incidence of macrovascular disease also differed significantly among the groups (P < 0.05). Metabolomics analysis suggested that increased levels of glutamate (Glu), phenylalanine (Phe), tyrosine (Tyr), proline (Pro), and homocysteine (Hcy) and a decreased level of glutamine (Gln) were significantly associated with cognitive impairment in the T2DM patients (P < 0.05). Receiver operating characteristic curve analysis demonstrated that Glu, Gln, Phe, and Pro levels were significant predictors of cognitive impairment in the T2DM patients. CONCLUSIONS Age, educational level, duration of diabetes, and the levels of FBG, HbA1c, TC, TG, and 24-hour urine protein were considered as independent risk factors for cognitive impairment in older T2DM patients. Macrovascular and microvascular diseases also were closely associated with cognitive impairment in these patients. Together, Glu and Gln levels may represent a good predictive biomarker for the early diagnosis of cognitive impairment in T2DM patients.
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Affiliation(s)
- Lin Sun
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - Xue Diao
- Department of Endocrinology and Metabolism, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, Guangdong Province, China
| | - Xiaokun Gang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - You Lv
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - Xue Zhao
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - Shuo Yang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - Ying Gao
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
| | - Guixia Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, 130021 Jilin Province, China
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17
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Yuen NY, Chechneva OV, Chen YJ, Tsai YC, Little LK, Dang J, Tancredi DJ, Conston J, Anderson SE, O'Donnell ME. Exacerbated brain edema in a rat streptozotocin model of hyperglycemic ischemic stroke: Evidence for involvement of blood-brain barrier Na-K-Cl cotransport and Na/H exchange. J Cereb Blood Flow Metab 2019; 39:1678-1692. [PMID: 29739261 PMCID: PMC6727129 DOI: 10.1177/0271678x18770844] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cerebral edema is exacerbated in diabetic ischemic stroke through poorly understood mechanisms. We showed previously that blood-brain barrier (BBB) Na-K-Cl cotransport (NKCC) and Na/H exchange (NHE) are major contributors to edema formation in normoglycemic ischemic stroke. Here, we investigated whether hyperglycemia-exacerbated edema involves changes in BBB NKCC and NHE expression and/or activity and whether inhibition of NKCC or NHE effectively reduces edema and injury in a type I diabetic model of hyperglycemic stroke. Cerebral microvascular endothelial cell (CMEC) NKCC and NHE abundances and activities were determined by Western blot, radioisotopic flux and microspectrofluorometric methods. Cerebral edema and Na in rats subjected to middle cerebral artery occlusion (MCAO) were assessed by nuclear magnetic resonance methods. Hyperglycemia exposures of 1-7d significantly increased CMEC NKCC and NHE abundance and activity. Subsequent exposure to ischemic factors caused more robust increases in NKCC and NHE activities than in normoglycemic CMEC. MCAO-induced edema and brain Na uptake were greater in hyperglycemic rats. Intravenous bumetanide and HOE-642 significantly attenuated edema, brain Na uptake and ischemic injury. Our findings provide evidence that BBB NKCC and NHE contribute to increased edema in hyperglycemic stroke, suggesting that these Na transporters are promising therapeutic targets for reducing damage in diabetic stroke.
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Affiliation(s)
- Natalie Y Yuen
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Olga V Chechneva
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Yi-Je Chen
- 2 Department of Pharmacology, University of California, Davis, CA, USA
| | - Yi-Chen Tsai
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Logan K Little
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - James Dang
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Daniel J Tancredi
- 3 Department of Pediatrics, University of California, Davis, CA, USA
| | - Jacob Conston
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Steven E Anderson
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
| | - Martha E O'Donnell
- 1 Department of Physiology and Membrane Biology, University of California, Davis, CA, USA
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18
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Glackin S, Metzger D, Hanas R, Chanoine JP. Is Age a Risk Factor for Cerebral Edema in Children With Diabetic Ketoacidosis? A Literature Review. Can J Diabetes 2019; 44:111-118. [PMID: 31311730 DOI: 10.1016/j.jcjd.2019.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 03/25/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022]
Abstract
Cerebral edema (CE) is a rare but potentially fatal complication of diabetic ketoacidosis (DKA) in children with type 1 diabetes. CE is frequently mentioned as being more common in young children. The primary objective of this study was to review the evidence suggesting that younger age is a risk factor for the development of CE during DKA. The secondary objective was to assess if younger children are at a higher risk of DKA and severe DKA. A literature review was performed, and studies which reported the frequency of CE, DKA and severe DKA in children <3 and 3 to 5 years of age were included. Among the 6 studies reporting the frequency of CE that were identified, 5 good-quality studies found no significant association between younger age and higher risk of CE. Twenty-seven studies (DKA frequency: 11.3% to 54%) reported DKA frequency as a function of age. Most published studies found a higher frequency of DKA in children <5 years of age (20/25 studies), and in particular in those in the first 2 to 3 years of life (8/8 studies). There was inconclusive evidence to determine whether the severity of DKA was influenced by age. In conclusion, the commonly held view that CE is more common in younger children is not supported by the existing literature. Published data suggest that DKA (and possibly severe DKA) is more common in very young children. Regardless of age, all children with DKA should be monitored carefully for the development of CE.
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Affiliation(s)
- Sinead Glackin
- Endocrinology & Diabetes Unit, British Columbia Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada.
| | - Daniel Metzger
- Endocrinology & Diabetes Unit, British Columbia Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Jean-Pierre Chanoine
- Endocrinology & Diabetes Unit, British Columbia Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
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19
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Glaser N, Kuppermann N. Fluid treatment for children with diabetic ketoacidosis: How do the results of the pediatric emergency care applied research network Fluid Therapies Under Investigation in Diabetic Ketoacidosis (FLUID) Trial change our perspective? Pediatr Diabetes 2019; 20:10-14. [PMID: 30417497 DOI: 10.1111/pedi.12795] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/03/2018] [Indexed: 01/08/2023] Open
Abstract
The optimal fluid treatment protocol for children with diabetic ketoacidosis (DKA) has long been a subject of controversy. Until recently, there was no high-quality evidence from randomized clinical trials to support an optimal guideline, and recommendations were mainly based on theoretical considerations. As a consequence, fluid treatment protocols for children with DKA vary between institutions (and countries). In June 2018, the results from the Fluid Therapies Under Investigation in DKA Trial conducted in the Pediatric Emergency Care Applied Research Network were published. This large, factorial-designed randomized controlled trial assessed neurological outcomes of 1387 children with DKA who were treated with one of four fluid protocols that varied in infusion rate and sodium content. In this commentary, we review and discuss the results of this new study and the implications for clinical care of DKA in children.
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Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, University of California Davis Health, University of California Davis, School of Medicine, Sacramento, California
| | - Nathan Kuppermann
- Department of Pediatrics, University of California Davis Health, University of California Davis, School of Medicine, Sacramento, California.,Department of Emergency Medicine, University of California Davis Health, University of California Davis, School of Medicine, Sacramento, California
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20
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Wolfsdorf JI, Glaser N, Agus M, Fritsch M, Hanas R, Rewers A, Sperling MA, Codner E. ISPAD Clinical Practice Consensus Guidelines 2018: Diabetic ketoacidosis and the hyperglycemic hyperosmolar state. Pediatr Diabetes 2018; 19 Suppl 27:155-177. [PMID: 29900641 DOI: 10.1111/pedi.12701] [Citation(s) in RCA: 364] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/31/2018] [Indexed: 12/22/2022] Open
Affiliation(s)
- Joseph I Wolfsdorf
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts
| | - Nicole Glaser
- Department of Pediatrics, Section of Endocrinology, University of California, Davis School of Medicine, Sacramento, California
| | - Michael Agus
- Division of Endocrinology, Boston Children's Hospital, Boston, Massachusetts.,Division of Critical Care Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Maria Fritsch
- Department of Pediatric and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Ragnar Hanas
- Department of Pediatrics, NU Hospital Group, Uddevalla and Sahlgrenska Academy, Gothenburg University, Uddevalla, Sweden
| | - Arleta Rewers
- Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado
| | - Mark A Sperling
- Division of Endocrinology, Diabetes and Metabolism, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ethel Codner
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santiago, Chile
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21
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Kuppermann N, Ghetti S, Schunk JE, Stoner MJ, Rewers A, McManemy JK, Myers SR, Nigrovic LE, Garro A, Brown KM, Quayle KS, Trainor JL, Tzimenatos L, Bennett JE, DePiero AD, Kwok MY, Perry CS, Olsen CS, Casper TC, Dean JM, Glaser NS. Clinical Trial of Fluid Infusion Rates for Pediatric Diabetic Ketoacidosis. N Engl J Med 2018; 378:2275-2287. [PMID: 29897851 PMCID: PMC6051773 DOI: 10.1056/nejmoa1716816] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Diabetic ketoacidosis in children may cause brain injuries ranging from mild to severe. Whether intravenous fluids contribute to these injuries has been debated for decades. METHODS We conducted a 13-center, randomized, controlled trial that examined the effects of the rate of administration and the sodium chloride content of intravenous fluids on neurologic outcomes in children with diabetic ketoacidosis. Children were randomly assigned to one of four treatment groups in a 2-by-2 factorial design (0.9% or 0.45% sodium chloride content and rapid or slow rate of administration). The primary outcome was a decline in mental status (two consecutive Glasgow Coma Scale scores of <14, on a scale ranging from 3 to 15, with lower scores indicating worse mental status) during treatment for diabetic ketoacidosis. Secondary outcomes included clinically apparent brain injury during treatment for diabetic ketoacidosis, short-term memory during treatment for diabetic ketoacidosis, and memory and IQ 2 to 6 months after recovery from diabetic ketoacidosis. RESULTS A total of 1389 episodes of diabetic ketoacidosis were reported in 1255 children. The Glasgow Coma Scale score declined to less than 14 in 48 episodes (3.5%), and clinically apparent brain injury occurred in 12 episodes (0.9%). No significant differences among the treatment groups were observed with respect to the percentage of episodes in which the Glasgow Coma Scale score declined to below 14, the magnitude of decline in the Glasgow Coma Scale score, or the duration of time in which the Glasgow Coma Scale score was less than 14; with respect to the results of the tests of short-term memory; or with respect to the incidence of clinically apparent brain injury during treatment for diabetic ketoacidosis. Memory and IQ scores obtained after the children's recovery from diabetic ketoacidosis also did not differ significantly among the groups. Serious adverse events other than altered mental status were rare and occurred with similar frequency in all treatment groups. CONCLUSIONS Neither the rate of administration nor the sodium chloride content of intravenous fluids significantly influenced neurologic outcomes in children with diabetic ketoacidosis. (Funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development and the Health Resources and Services Administration; PECARN DKA FLUID ClinicalTrials.gov number, NCT00629707 .).
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Affiliation(s)
- Nathan Kuppermann
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Simona Ghetti
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Jeff E Schunk
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Michael J Stoner
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Arleta Rewers
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Julie K McManemy
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Sage R Myers
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Lise E Nigrovic
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Aris Garro
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Kathleen M Brown
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Kimberly S Quayle
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Jennifer L Trainor
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Leah Tzimenatos
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Jonathan E Bennett
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Andrew D DePiero
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Maria Y Kwok
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Clinton S Perry
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Cody S Olsen
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - T Charles Casper
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - J Michael Dean
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
| | - Nicole S Glaser
- From the Departments of Emergency Medicine (N.K., L.T.), Pediatrics (N.K., N.S.G.), and Psychology (S.G., C.S.P.), University of California Davis Health, University of California, Davis, School of Medicine, Sacramento; the Department of Pediatrics, University of Utah School of Medicine, Salt Lake City (J.E.S., C.S.O., T.C.C., J.M.D.); the Division of Emergency Medicine, Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.J.S.); the Division of Emergency Medicine, Department of Pediatrics, Colorado Children's Hospital, University of Colorado-Denver School of Medicine, Aurora (A.R.); the Division of Emergency Medicine, Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston (J.K.M.); the Division of Emergency Medicine, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania (S.R.M.), and the Division of Emergency Medicine, Nemours/A.I. duPont Hospital for Children, Sidney Kimmel Medical College at Thomas Jefferson University (J.E.B., A.D.D.) - both in Philadelphia; the Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston (L.E.N.); the Departments of Emergency Medicine and Pediatrics, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence (A.G.); the Division of Emergency Medicine, Department of Pediatrics, Children's National Medical Center, George Washington School of Medicine and Health Sciences, Washington, DC (K.M.B.); the Division of Emergency Medicine, Department of Pediatrics, St. Louis Children's Hospital, Washington University School of Medicine in St. Louis, St. Louis (K.S.Q.); the Division of Emergency Medicine, Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago (J.L.T.); and the Division of Emergency Medicine, Department of Pediatrics, New York Presbyterian Morgan Stanley Children's Hospital, Columbia University College of Physicians and Surgeons, New York (M.Y.K.); and the Department of Psychology, Tufts University, Medford, MA (C.S.P.)
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22
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Glaser N, Little C, Lo W, Cohen M, Tancredi D, Wulff H, O'Donnell M. Treatment with the KCa3.1 inhibitor TRAM-34 during diabetic ketoacidosis reduces inflammatory changes in the brain. Pediatr Diabetes 2017; 18:356-366. [PMID: 27174668 DOI: 10.1111/pedi.12396] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/30/2016] [Accepted: 04/06/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Diabetic ketoacidosis (DKA) causes brain injuries in children ranging from subtle to life-threatening. Previous studies suggest that DKA-related brain injury may involve both stimulation of Na-K-Cl cotransport and microglial activation. Other studies implicate the Na-K-Cl cotransporter and the Ca-activated K channel KCa3.1 in activation of microglia and ischemia-induced brain edema. In this study, we determined whether inhibiting cerebral Na-K-Cl cotransport or KCa3.1 could reduce microglial activation and decrease DKA-related inflammatory changes in the brain. METHODS Using immunohistochemistry, we investigated cellular alterations in brain specimens from juvenile rats with DKA before, during and after insulin and saline treatment. We compared findings in rats treated with and without bumetanide (an inhibitor of Na-K-Cl cotransport) or the KCa3.1 inhibitor TRAM-34. RESULTS Glial fibrillary acidic protein (GFAP) staining intensity was increased in the hippocampus during DKA, suggesting reactive astrogliosis. OX42 staining intensity was increased during DKA in the hippocampus, cortex and striatum, indicating microglial activation. Treatment with TRAM-34 decreased both OX42 and GFAP intensity suggesting a decreased inflammatory response to DKA. Treatment with bumetanide did not significantly alter OX42 or GFAP intensity. CONCLUSIONS Inhibiting KCa3.1 activity with TRAM-34 during DKA treatment decreases microglial activation and reduces reactive astrogliosis, suggesting a decreased inflammatory response.
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Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Christopher Little
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Weei Lo
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Michael Cohen
- Department of Physiology and Membrane Biology, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Daniel Tancredi
- Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Heike Wulff
- Department of Pharmacology, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
| | - Martha O'Donnell
- Department of Physiology and Membrane Biology, University of California, Davis School of Medicine, Sacramento, CA 95817, USA
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23
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Rehni AK, Liu A, Perez-Pinzon MA, Dave KR. Diabetic aggravation of stroke and animal models. Exp Neurol 2017; 292:63-79. [PMID: 28274862 PMCID: PMC5400679 DOI: 10.1016/j.expneurol.2017.03.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 02/03/2017] [Accepted: 03/03/2017] [Indexed: 12/16/2022]
Abstract
Cerebral ischemia in diabetics results in severe brain damage. Different animal models of cerebral ischemia have been used to study the aggravation of ischemic brain damage in the diabetic condition. Since different disease conditions such as diabetes differently affect outcome following cerebral ischemia, the Stroke Therapy Academic Industry Roundtable (STAIR) guidelines recommends use of diseased animals for evaluating neuroprotective therapies targeted to reduce cerebral ischemic damage. The goal of this review is to discuss the technicalities and pros/cons of various animal models of cerebral ischemia currently being employed to study diabetes-related ischemic brain damage. The rational use of such animal systems in studying the disease condition may better help evaluate novel therapeutic approaches for diabetes related exacerbation of ischemic brain damage.
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Affiliation(s)
- Ashish K Rehni
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Allen Liu
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Miguel A Perez-Pinzon
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Kunjan R Dave
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Department of Neurology, University of Miami Miller School of Medicine, Miami, FL 33136, USA; Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
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24
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Histological and cognitive alterations in adult diabetic rats following an episode of juvenile diabetic ketoacidosis: Evidence of permanent cerebral injury. Neurosci Lett 2017; 650:161-167. [DOI: 10.1016/j.neulet.2017.04.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/03/2017] [Accepted: 04/18/2017] [Indexed: 01/26/2023]
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Long B, Koyfman A. Emergency Medicine Myths: Cerebral Edema in Pediatric Diabetic Ketoacidosis and Intravenous Fluids. J Emerg Med 2017; 53:212-221. [PMID: 28412071 DOI: 10.1016/j.jemermed.2017.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 03/08/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Pediatric diabetic ketoacidosis (DKA) is a disease associated with several complications that can be severe. One complication includes cerebral edema (CE), and patients may experience significant morbidity with this disease. OBJECTIVE This review evaluates the myths concerning CE in pediatric DKA including mechanism, presentation of edema, clinical assessment of dehydration, and association with intravenous (i.v.) fluids. DISCUSSION Multiple complications may occur in pediatric DKA. CE occurs in < 1% of pediatric DKA cases, though morbidity and mortality are severe without treatment. Several myths surround this disease. Subclinical CE is likely present in many patients with pediatric DKA, though severe disease is rare. A multitude of mechanisms likely account for development of CE, including vasogenic and cytotoxic causes. Clinical dehydration is difficult to assess. Literature has evaluated the association of fluid infusion with the development of CE, but most studies are retrospective, with no comparator groups. The few studies with comparisons suggest fluid infusion is not associated with DKA. Rather, the severity of DKA with higher blood urea nitrogen and greater acidosis contribute to CE. Multiple strategies for fluid replacement exist. A bolus of 10 mL/kg of i.v. fluid is likely safe, which can be repeated if hemodynamic status does not improve. CONCLUSIONS Pediatric CE in DKA is rare but severe. Multiple mechanisms result in this disease, and many patients experience subclinical CE. Intravenous fluids are likely not associated with development of CE, and 10-mL/kg or 20-mL/kg i.v. bolus is safe.
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Affiliation(s)
- Brit Long
- Department of Emergency Medicine, San Antonio Military Medical Center, Fort Sam Houston, Texas
| | - Alex Koyfman
- Department of Emergency Medicine, The University of Texas Southwestern Medical Center, Dallas, Texas
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Guilford BL, Ryals JM, Lezi E, Swerdlow RH, Wright DE. Dorsal Root Ganglia Mitochondrial Biochemical Changes in Non-diabetic and Streptozotocin-Induced Diabetic Mice Fed with a Standard or High-Fat Diet. ACTA ACUST UNITED AC 2017; 8. [PMID: 28775932 DOI: 10.21767/2171-6625.1000180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Mitochondrial dysfunction is purported as a contributory mechanism underlying diabetic neuropathy, but a defined role for damaged mitochondria in diabetic nerves remains unclear, particularly in standard diabetes models. Experiments here used a high-fat diet in attempt to exacerbate the severity of diabetes and expedite the time-course in which mitochondrial dysfunction may occur. We hypothesized a high-fat diet in addition to diabetes would increase stress on sensory neurons and worsen mitochondrial dysfunction. METHODS Oxidative phosphorylation proteins and proteins associated with mitochondrial function were quantified in lumbar dorsal root ganglia. Comparisons were made between non-diabetic and streptozotocin-induced (STZ) C57Bl/6 mice fed a standard or high-fat diet for 8 weeks. RESULTS Complex III subunit Core-2 and voltage dependent anion channel were increased (by 36% and 28% respectively, p<0.05) in diabetic mice compared to nondiabetic mice fed the standard diet. There were no differences among groups in UCP2, PGC-1α, PGC-1β levels or Akt, mTor, or AMPK activation. These data suggest compensatory mitochondrial biogenesis occurs to offset potential mitochondrial dysfunction after 8 weeks of STZ-induced diabetes, but a high-fat diet does not alter these parameters. CONCLUSION Our results indicate mitochondrial protein changes early in STZ-induced diabetes. Interestingly, a high-fat diet does not appear to affect mitochondrial proteins in either nondiabetic or STZ- diabetic mice.
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Affiliation(s)
- B L Guilford
- Department of Applied Health, Southern Illinois University, Edwardsville, Illinois, USA
| | - J M Ryals
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - E Lezi
- Department of Molecular Genetics and Microbiology, Duke University, Durham, North Carolina, USA
| | - R H Swerdlow
- Department of Molecular and Integrative Physiology and Neurology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - D E Wright
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
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Yaneva NY, Konstantinova MM, Iliev DI. Risk factors for cerebral oedema in children and adolescents with diabetic ketoacidosis. BIOTECHNOL BIOTEC EQ 2016. [DOI: 10.1080/13102818.2016.1221740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Natasha Y. Yaneva
- Pediatric Intensive Care Unit, University Pediatric Hospital, Medical University of Sofia , Sofia, Bulgaria
| | - Maia M. Konstantinova
- Department for Diabetes, Clinic for Endocrinology, Diabetes and Metabolism, University Pediatric Hospital, Medical University of Sofia , Sofia, Bulgaria
| | - Daniel I. Iliev
- Pediatric Intensive Care Unit, University Pediatric Hospital, Medical University of Sofia , Sofia, Bulgaria
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Daulatzai MA. Cerebral hypoperfusion and glucose hypometabolism: Key pathophysiological modulators promote neurodegeneration, cognitive impairment, and Alzheimer's disease. J Neurosci Res 2016; 95:943-972. [PMID: 27350397 DOI: 10.1002/jnr.23777] [Citation(s) in RCA: 274] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/06/2016] [Accepted: 05/07/2016] [Indexed: 02/06/2023]
Abstract
Aging, hypertension, diabetes, hypoxia/obstructive sleep apnea (OSA), obesity, vitamin B12/folate deficiency, depression, and traumatic brain injury synergistically promote diverse pathological mechanisms including cerebral hypoperfusion and glucose hypometabolism. These risk factors trigger neuroinflammation and oxidative-nitrosative stress that in turn decrease nitric oxide and enhance endothelin, Amyloid-β deposition, cerebral amyloid angiopathy, and blood-brain barrier disruption. Proinflammatory cytokines, endothelin-1, and oxidative-nitrosative stress trigger several pathological feedforward and feedback loops. These upstream factors persist in the brain for decades, upregulating amyloid and tau, before the cognitive decline. These cascades lead to neuronal Ca2+ increase, neurodegeneration, cognitive/memory decline, and Alzheimer's disease (AD). However, strategies are available to attenuate cerebral hypoperfusion and glucose hypometabolism and ameliorate cognitive decline. AD is the leading cause of dementia among the elderly. There is significant evidence that pathways involving inflammation and oxidative-nitrosative stress (ONS) play a key pathophysiological role in promoting cognitive dysfunction. Aging and several comorbid conditions mentioned above promote diverse pathologies. These include inflammation, ONS, hypoperfusion, and hypometabolism in the brain. In AD, chronic cerebral hypoperfusion and glucose hypometabolism precede decades before the cognitive decline. These comorbid disease conditions may share and synergistically activate these pathophysiological pathways. Inflammation upregulates cerebrovascular pathology through proinflammatory cytokines, endothelin-1, and nitric oxide (NO). Inflammation-triggered ONS promotes long-term damage involving fatty acids, proteins, DNA, and mitochondria; these amplify and perpetuate several feedforward and feedback pathological loops. The latter includes dysfunctional energy metabolism (compromised mitochondrial ATP production), amyloid-β generation, endothelial dysfunction, and blood-brain-barrier disruption. These lead to decreased cerebral blood flow and chronic cerebral hypoperfusion- that would modulate metabolic dysfunction and neurodegeneration. In essence, hypoperfusion deprives the brain from its two paramount trophic substances, viz., oxygen and nutrients. Consequently, the brain suffers from synaptic dysfunction and neuronal degeneration/loss, leading to both gray and white matter atrophy, cognitive dysfunction, and AD. This Review underscores the importance of treating the above-mentioned comorbid disease conditions to attenuate inflammation and ONS and ameliorate decreased cerebral blood flow and hypometabolism. Additionally, several strategies are described here to control chronic hypoperfusion of the brain and enhance cognition. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Mak Adam Daulatzai
- Sleep Disorders Group, EEE Dept/MSE, The University of Melbourne, Parkville, Victoria, Australia
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Lo W, O'Donnell M, Tancredi D, Orgain M, Glaser N. Diabetic ketoacidosis in juvenile rats is associated with reactive gliosis and activation of microglia in the hippocampus. Pediatr Diabetes 2016; 17:127-39. [PMID: 25594864 DOI: 10.1111/pedi.12251] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/10/2014] [Accepted: 12/12/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Type 1 diabetes may be associated with structural and functional alterations in the brain. The role of diabetic ketoacidosis (DKA) in causing these alterations has not been well explored. METHODS We used immunohistochemical staining to investigate cellular alterations in brain specimens from juvenile rats with DKA before, during, and after treatment with insulin and saline, and compared these to samples from diabetic rats and normal controls. RESULTS Glial fibrillary acidic protein (GFAP) staining intensity was increased in the hippocampus during DKA and increased further during insulin/saline treatment. Twenty-four and 72 h after treatment, hippocampal GFAP intensity declined but remained above control levels. There were no significant changes in GFAP intensity in the cortex or striatum. OX42 staining intensity was increased during untreated DKA and increased further during insulin/saline treatment in the hippocampus and cortex. NeuN staining intensity was decreased after DKA treatment in the striatum but not in other regions. CONCLUSIONS DKA causes inflammatory changes in the brain including reactive gliosis and activation of microglia. These findings are present during untreated DKA, but intensify during insulin/saline treatment. The hippocampus was disproportionately affected, consistent with previous studies showing deficits in hippocampal functions in rats after DKA recovery and decreased memory capacity in children with a history of DKA.
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Affiliation(s)
- Weei Lo
- Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA, USA
| | - Martha O'Donnell
- Departments of Physiology and Membrane Biology, University of California Davis, School of Medicine, Sacramento, CA, USA
| | - Daniel Tancredi
- Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA, USA
| | - Myra Orgain
- Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA, USA
| | - Nicole Glaser
- Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA, USA
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DKA with Severe Hypertriglyceridemia and Cerebral Edema in an Adolescent Boy: A Case Study and Review of the Literature. Case Rep Endocrinol 2016; 2016:7515721. [PMID: 26904318 PMCID: PMC4745619 DOI: 10.1155/2016/7515721] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/04/2016] [Indexed: 11/17/2022] Open
Abstract
A 13-year-old adolescent boy with type 1 diabetes mellitus (1b) presented with diabetic ketoacidosis (DKA) and cerebral edema. Grossly lipemic serum and lipemia retinals due to extremely high triglyceride (TG) level were observed without evidence of xanthoma or xanthelasma. Cerebral edema was treated by appropriate ventilation and mannitol administration. Normal saline was carefully given and regular insulin was titrated according to blood sugar levels. Triglyceride levels were reduced from 9,800 mg/dL to normal range within 9 days after conventional treatment was commenced without antilipid medication. Based on our review of the literature, this is the first reported case of confirmed pediatric DKA with severe hypertriglyceridemia and cerebral edema. In patients with DKA and hypertriglyceridemia, clinicians should be mindful of the possibility of associated acute pancreatitis and cerebral edema.
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Ayed S, Bouguerba A, Ahmed P, Barchazs J, Boukari M, Goldgran-Toledano D, Bornstain C, Vincent F. Les pièges de l’acidocétose diabétique. MEDECINE INTENSIVE REANIMATION 2015. [DOI: 10.1007/s13546-015-1113-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Glaser N, Lo W, Tancredi D, Orgain M, Puvenna V, Janigro D, O׳Donnell M. Levels of S100B in brain and blood of rats with diabetic ketoacidosis. Brain Res 2015; 1624:536-544. [DOI: 10.1016/j.brainres.2015.07.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/23/2015] [Accepted: 07/24/2015] [Indexed: 01/01/2023]
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Soni A, Ng SM. Type 1 and type 2 diabetes in children and young people: updated NICE guidance. PRACTICAL DIABETES 2015. [DOI: 10.1002/pdi.1973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Astha Soni
- Countess of Chester Hospital NHS Foundation Trust; UK
| | - Sze May Ng
- Southport and Ormskirk Hospitals NHS Trust; UK
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Liu L, Collier AC, Link JM, Domino KB, Mankoff DA, Eary JF, Spiekerman CF, Hsiao P, Deo AK, Unadkat JD. Modulation of P-glycoprotein at the Human Blood-Brain Barrier by Quinidine or Rifampin Treatment: A Positron Emission Tomography Imaging Study. Drug Metab Dispos 2015; 43:1795-804. [PMID: 26354948 DOI: 10.1124/dmd.114.058685] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 09/01/2015] [Indexed: 11/22/2022] Open
Abstract
Permeability-glycoprotein (P-glycoprotein, P-gp), an efflux transporter at the human blood-brain barrier (BBB), is a significant obstacle to central nervous system (CNS) delivery of P-gp substrate drugs. Using positron emission tomography imaging, we investigated P-gp modulation at the human BBB by an approved P-gp inhibitor, quinidine, or the P-gp inducer, rifampin. Cerebral blood flow (CBF) and BBB P-gp activity were respectively measured by administration of (15)O-water followed by (11)C-verapamil. In a crossover design, healthy volunteers received quinidine and 11-29 days of rifampin treatment during different study periods. CBF and P-gp activity was measured in the absence (control; prior to quinidine treatment) and presence of P-gp modulation. At clinically relevant quinidine plasma concentrations, P-gp inhibition resulted in a 60% increase in (11)C-radioactivity distribution across the human BBB as measured by the brain extraction ratio (ER) of (11)C-radioactivity. Furthermore, the magnitude of BBB P-gp inhibition by quinidine was successfully predicted by a combination of in vitro and macaque data, but not by rat data. Although our findings demonstrated that quinidine did not completely inhibit P-gp at the human BBB, it has the potential to produce clinically significant CNS drug interactions with P-gp substrate drugs that exhibit a narrow therapeutic window and are significantly excluded from the brain by P-gp. Rifampin treatment induced systemic CYP3A metabolism of (11)C-verapamil; however, it reduced the ER by 6%. Therefore, we conclude that rifampin, at its usual clinical dose, cannot be used to induce P-gp at the human BBB to a clinically meaningful extent and is unlikely to cause inadvertent BBB-inductive drug interactions.
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Affiliation(s)
- Li Liu
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Ann C Collier
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Jeanne M Link
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Karen B Domino
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - David A Mankoff
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Janet F Eary
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Charles F Spiekerman
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Peng Hsiao
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Anand K Deo
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
| | - Jashvant D Unadkat
- Department of Pharmaceutics (L.L., P.H., A.K.D., J.D.U.), Department of Medicine (A.C.C.), Division of Nuclear Medicine (J.M.L., D.A.M., J.F.E.), Department of Anesthesiology and Pain Medicine (K.B.D.), and Department of Oral Health Sciences (C.F.S.), University of Washington, Seattle, Washington
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Wanek T, Römermann K, Mairinger S, Stanek J, Sauberer M, Filip T, Traxl A, Kuntner C, Pahnke J, Bauer F, Erker T, Löscher W, Müller M, Langer O. Factors Governing P-Glycoprotein-Mediated Drug-Drug Interactions at the Blood-Brain Barrier Measured with Positron Emission Tomography. Mol Pharm 2015. [PMID: 26202880 PMCID: PMC4566129 DOI: 10.1021/acs.molpharmaceut.5b00168] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
![]()
The
adenosine triphosphate-binding cassette transporter P-glycoprotein
(ABCB1/Abcb1a) restricts at the blood–brain barrier (BBB) brain
distribution of many drugs. ABCB1 may be involved in drug–drug
interactions (DDIs) at the BBB, which may lead to changes in brain
distribution and central nervous system side effects of drugs. Positron
emission tomography (PET) with the ABCB1 substrates (R)-[11C]verapamil and [11C]-N-desmethyl-loperamide and the ABCB1 inhibitor tariquidar has allowed
direct comparison of ABCB1-mediated DDIs at the rodent and human BBB.
In this work we evaluated different factors which could influence
the magnitude of the interaction between tariquidar and (R)-[11C]verapamil or [11C]-N-desmethyl-loperamide at the BBB and thereby contribute to previously
observed species differences between rodents and humans. We performed in vitro transport experiments with [3H]verapamil
and [3H]-N-desmethyl-loperamide in ABCB1
and Abcb1a overexpressing cell lines. Moreover we conducted in vivo PET experiments and biodistribution studies with
(R)-[11C]verapamil and [11C]-N-desmethyl-loperamide in wild-type mice without and with
tariquidar pretreatment and in homozygous Abcb1a/1b(−/−) and heterozygous Abcb1a/1b(+/−) mice. We found no differences for in vitro transport of [3H]verapamil and [3H]-N-desmethyl-loperamide by ABCB1 and Abcb1a and its inhibition
by tariquidar. [3H]-N-Desmethyl-loperamide
was transported with a 5 to 9 times higher transport ratio than [3H]verapamil in ABCB1- and Abcb1a-transfected cells. In vivo, brain radioactivity concentrations were lower for
[11C]-N-desmethyl-loperamide than for
(R)-[11C]verapamil. Both radiotracers
showed tariquidar dose dependent increases in brain distribution with
tariquidar half-maximum inhibitory concentrations (IC50) of 1052 nM (95% confidence interval CI: 930–1189) for (R)-[11C]verapamil and 1329 nM (95% CI: 980–1801)
for [11C]-N-desmethyl-loperamide. In homozygous Abcb1a/1b(−/−) mice brain radioactivity
distribution was increased by 3.9- and 2.8-fold and in heterozygous Abcb1a/1b(+/−) mice by 1.5- and 1.1-fold,
for (R)-[11C]verapamil and [11C]-N-desmethyl-loperamide, respectively, as compared
with wild-type mice. For both radiotracers radiolabeled metabolites
were detected in plasma and brain. When brain and plasma radioactivity
concentrations were corrected for radiolabeled metabolites, brain
distribution of (R)-[11C]verapamil and
[11C]-N-desmethyl-loperamide was increased
in tariquidar (15 mg/kg) treated animals by 14.1- and 18.3-fold, respectively,
as compared with vehicle group. Isoflurane anesthesia altered [11C]-N-desmethyl-loperamide but not (R)-[11C]verapamil metabolism, and this had a
direct effect on the magnitude of the increase in brain distribution
following ABCB1 inhibition. Our data furthermore suggest that in the
absence of ABCB1 function brain distribution of [11C]-N-desmethyl-loperamide but not (R)-[11C]verapamil may depend on cerebral blood flow. In conclusion,
we have identified a number of important factors, i.e., substrate
affinity to ABCB1, brain uptake of radiolabeled metabolites, anesthesia,
and cerebral blood flow, which can directly influence the magnitude
of ABCB1-mediated DDIs at the BBB and should therefore be taken into
consideration when interpreting PET results.
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Affiliation(s)
- Thomas Wanek
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Kerstin Römermann
- Department of Pharmacology, Toxicology & Pharmacy, University of Veterinary Medicine Hannover , Hannover, Germany.,Department of Clinical Pharmacology, Medical University of Vienna , Vienna, Austria
| | - Severin Mairinger
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Johann Stanek
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria.,Department of Clinical Pharmacology, Medical University of Vienna , Vienna, Austria
| | - Michael Sauberer
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Thomas Filip
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Alexander Traxl
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Claudia Kuntner
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria
| | - Jens Pahnke
- Department of Neuro-/Pathology, University of Oslo (UiO) and Oslo University Hospital (OUS) , Oslo, Norway.,Lübeck Institute of Experimental Dermatology, University of Lübeck , Lübeck, Germany
| | - Florian Bauer
- Department of Medicinal Chemistry, University of Vienna , Vienna, Austria
| | - Thomas Erker
- Department of Medicinal Chemistry, University of Vienna , Vienna, Austria
| | - Wolfgang Löscher
- Department of Pharmacology, Toxicology & Pharmacy, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Markus Müller
- Department of Clinical Pharmacology, Medical University of Vienna , Vienna, Austria
| | - Oliver Langer
- Health & Environment Department, AIT Austrian Institute of Technology GmbH , Seibersdorf, Austria.,Department of Clinical Pharmacology, Medical University of Vienna , Vienna, Austria
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Abstract
A constant supply of glucose to the brain is critical for normal cerebral metabolism. The dysglycemia of type 1 diabetes (T1D) can affect activity, survival, and function of neural cells. Clinical studies in T1D have shown impairments in brain morphology and function. The most neurotoxic milieu seems to be young age and/or diabetic ketoacidosis at onset, severe hypoglycemia under the age of 6 years followed by chronic hyperglycemia. Adverse cognitive outcomes seem to be associated with poorer mental health outcomes. It is imperative to improve outcomes by investigating the mechanisms of injury so that neuroprotective strategies independent of glycemia can be identified.
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Affiliation(s)
- Fergus J Cameron
- Department of Endocrinology and Diabetes, Royal Children's Hospital, Murdoch Childrens Research Institute, 50 Flemington Road, Parkville, Melbourne 3052, Australia; Department of Paediatrics, University of Melbourne, Melbourne 3010, Australia.
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Warncke K, Dressel P, Ziegler AG, Steinborn M, Bonfig W, Burdach S, Engelsberger I. Severe pretreatment cerebral edema in newly diagnosed type 1 diabetes. Horm Res Paediatr 2015; 81:285-8. [PMID: 24642459 DOI: 10.1159/000357140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 11/05/2013] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Cerebral edema (CE) is a rare and dangerous complication of diabetic ketoacidosis. In typical cases, it may develop during several hours after the beginning of ketoacidosis therapy. Nevertheless, CE sometimes occurs before the start of any therapy - as for the patient in this report here. CASE REPORT We describe a 12-year-old girl with newly diagnosed type 1 diabetes, presenting with severe headache and disorientation. Diabetes-related symptoms were not reported by the family. Clinical investigation revealed signs of meningeal irritation and Kussmaul breathing. In the laboratory, severe ketoacidosis (pH 6.95) and hyperglycemia (blood glucose 20.9 mmmol/l) were found. Cranial computed tomography showed CE. The patient was treated with a very cautious fluid and insulin therapy and recovered within 3 days. MRI after recovery showed normal findings without residuals of CE. CONCLUSION CE before any treatment of ketoacidosis is a very rare complication of type 1 diabetes. Early diagnosis and effective treatment are extremely important for the patient's outcome and prognosis.
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Affiliation(s)
- Katharina Warncke
- Department of Pediatrics, Kinderklinik München Schwabing, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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Glaser N, Bundros A, Anderson S, Tancredi D, Lo W, Orgain M, O'Donnell M. Brain cell swelling during hypocapnia increases with hyperglycemia or ketosis. Pediatr Diabetes 2014; 15:484-93. [PMID: 24443981 PMCID: PMC4104267 DOI: 10.1111/pedi.12114] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 11/07/2013] [Accepted: 12/18/2013] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Severe hypocapnia reduces cerebral blood flow (CBF) and is known to be a risk factor for diabetic ketoacidosis (DKA)-related cerebral edema and cerebral injury in children. Reductions in CBF resulting from hypocapnia alone, however, would not be expected to cause substantial cerebral injury. We hypothesized that either hyperglycemia or ketosis might alter the effects of hypocapnia on CBF and/or cerebral edema associated with CBF reduction. METHODS We induced hypocapnia (pCO₂ 20 ± 3 mmHg) via mechanical ventilation in three groups of juvenile rats: 25 controls, 22 hyperglycemic rats (serum glucose 451 ± 78 mg/dL), and 15 ketotic rats (β-hydroxy butyrate 3.0 ± 1.0 mmol/L). We used magnetic resonance imaging to measure CBF and apparent diffusion coefficient (ADC) values in these groups and in 17 ventilated rats with normal pCO₂ (40 ± 3 mmHg). In a subset (n = 35), after 2 h of hypocapnia, pCO₂ levels were normalized (40 ± 3 mmHg) and ADC and CBF measurements were repeated. RESULTS Declines in CBF with hypocapnia occurred in all groups. Normalization of pCO₂ after hypocapnia resulted in hyperemia in the striatum. These effects were not substantially altered by hyperglycemia or ketosis. Declines in ADC (suggesting brain cell swelling) during hypocapnia, however, were greater during both hyperglycemia and ketosis. CONCLUSIONS We conclude that brain cell swelling associated with hypocapnia is increased by both hyperglycemia and ketosis, suggesting that these metabolic conditions may make the brain more vulnerable to injury during hypocapnia.
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Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, University of California Davis, School of Medicine
| | - Angeliki Bundros
- Department of Pediatrics, Physiology and Membrane Biology, University of California Davis, School of Medicine
| | - Steve Anderson
- Department of Pediatrics, Physiology and Membrane Biology, University of California Davis, School of Medicine
| | - Daniel Tancredi
- Department of Pediatrics, University of California Davis, School of Medicine
| | - Weei Lo
- Department of Pediatrics, University of California Davis, School of Medicine
| | - Myra Orgain
- Department of Pediatrics, University of California Davis, School of Medicine
| | - Martha O'Donnell
- Department of Pediatrics, Physiology and Membrane Biology, University of California Davis, School of Medicine
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Liu H, Chen R, Wang J, Chen S, Xiong C, Wang J, Hou J, He Q, Zhang N, Nie Z, Mao L. 1,5-Diaminonaphthalene hydrochloride assisted laser desorption/ionization mass spectrometry imaging of small molecules in tissues following focal cerebral ischemia. Anal Chem 2014; 86:10114-21. [PMID: 25247713 DOI: 10.1021/ac5034566] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A sensitive analytical technique for visualizing small endogenous molecules simultaneously is of great significance for clearly elucidating metabolic mechanisms during pathological progression. In the present study, 1,5-naphthalenediamine (1,5-DAN) hydrochloride was prepared for matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) of small molecules in liver, brain, and kidneys from mice. Furthermore, 1,5-DAN hydrochloride assisted LDI MSI of small molecules in brain tissue of rats subjected to middle cerebral artery occlusion (MCAO) was carried out to investigate the altered metabolic pathways and mechanisms underlying the development of ischemic brain damage. Our results suggested that the newly prepared matrix possessed brilliant features including low cost, strong ultraviolet absorption, high salt tolerance capacity, and fewer background signals especially in the low mass range (typically m/z < 500), which permitted us to visualize the spatial distribution of a broad range of small molecule metabolites including metal ions, amino acids, carboxylic acids, nucleotide derivatives, peptide, and lipids simultaneously. Nineteen endogenous metabolites involved in metabolic networks such as ATP metabolism, tricarboxylic acid (TCA) cycle, glutamate-glutamine cycle, and malate-aspartate shuttle, together with metal ions and phospholipids as well as antioxidants underwent relatively obvious changes after 24 h of MCAO. The results were highly consistent with the data obtained by MRM MS analysis. These findings highlighted the promising potential of the organic salt matrix for application in the field of biomedical research.
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Affiliation(s)
- Huihui Liu
- Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry Chinese Academy of Sciences , Beijing 100190, China
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Transcranial Doppler-based assessment of cerebral autoregulation in critically ill children during diabetic ketoacidosis treatment. Pediatr Crit Care Med 2014; 15:742-9. [PMID: 25072475 DOI: 10.1097/pcc.0000000000000197] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Impaired cerebral autoregulation may be associated with poor outcome in diabetic ketoacidosis. We examined change in cerebral autoregulation during diabetic ketoacidosis treatment. DESIGN Prospective observational cohort study. SETTING Tertiary care children's hospital. PATIENTS/SUBJECTS Children admitted to the ICU with diabetic ketoacidosis (venous pH < 7.3, glucose > 300 mg/dL, HCO3 < 15 mEq/L, and ketonuria) constituted cases, and children with type I diabetes without diabetic ketoacidosis constituted controls. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Between 2005 and 2009, 32 cases and 50 controls were enrolled. Transcranial Doppler ultrasonography was used to measure middle cerebral artery flow velocities, and cerebral autoregulation testing was achieved via tilt-table testing. Cases underwent two and controls underwent one cerebral autoregulation test. Cerebral autoregulation was quantified by the autoregulatory index (autoregulatory index < 0.4 = impaired and autoregulatory index 0.4-1.0 = intact autoregulation). The first autoregulation test was obtained early (time 1, 12-24 hr; median [interquartile range], 8 hr [5-18 hr]) during diabetic ketoacidosis treatment, and a second autoregulation test was obtained during recovery (time 2, 36-72 hr; median [ interquartile range], 46 hr [40-59 hr]) from time 0 (defined as time of insulin start). Cases had lower autoregulatory index at time 1 than time 2 (p < 0.001) as well lower autoregulatory index than control subjects (p < 0.001). Cerebral autoregulation was impaired in 40% (n = 13) of cases at time 1 and in 6% (n = 2) of cases at time 2. Five cases (17%) showed persistent impairment of cerebral autoregulation between times 1 and 2 of treatment. All control subjects had intact cerebral autoregulation. CONCLUSIONS Impaired cerebral autoregulation was common early during diabetic ketoacidosis treatment. Although the majority improved during diabetic ketoacidosis treatment, 17% of subjects had impairment between 36 and 72 hours after start of insulin therapy. The observed impaired cerebral autoregulation appears specific to the diabetic ketoacidosis process in patients with type I diabetes.
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Wolfsdorf JI, Allgrove J, Craig ME, Edge J, Glaser N, Jain V, Lee WWR, Mungai LNW, Rosenbloom AL, Sperling MA, Hanas R. ISPAD Clinical Practice Consensus Guidelines 2014. Diabetic ketoacidosis and hyperglycemic hyperosmolar state. Pediatr Diabetes 2014; 15 Suppl 20:154-79. [PMID: 25041509 DOI: 10.1111/pedi.12165] [Citation(s) in RCA: 214] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 05/21/2014] [Indexed: 12/16/2022] Open
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Güven A, Hancili S, Karatoprak EY, Tasel B. Symptomatic cerebral infarction in a child with severe diabetic ketoacidosis. J Pediatr Endocrinol Metab 2014; 27:1001-4. [PMID: 24825089 DOI: 10.1515/jpem-2014-0037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 04/17/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND Diabetic ketoacidosis (DKA) is a common initial presentation of pediatric type 1 diabetes mellitus. Intracerebral complications of DKA pose significant mortality and morbidity rates. OBJECTIVE Our aim is to emphasize the importance of early identification, investigation, and treatment for patients who present with DKA and stroke. CASE REPORT Here, we report a case of a 4-year-old female patient who presented with ischemic-hemorrhagic stroke as a complication of DKA. CONCLUSION Cerebrovascular complications of DKA in children are a rare condition; however, higher risks take place in their youngest age. Clinicians should be aware of these complications so as to develop appropriate approach for its management.
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Wolfsdorf JI. The International Society of Pediatric and Adolescent Diabetes guidelines for management of diabetic ketoacidosis: Do the guidelines need to be modified? Pediatr Diabetes 2014; 15:277-86. [PMID: 24866064 DOI: 10.1111/pedi.12154] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 04/18/2014] [Indexed: 12/15/2022] Open
Abstract
The current version of the International Society of Pediatric and Adolescent Diabetes (ISPAD) guidelines for management of diabetic ketoacidosis (DKA) is largely based on the Lawson Wilkins Pediatric Endocrine Society/European Society of Pediatric Endocrinology (LWPES/ESPE) consensus statement on DKA in children and adolescents published in 2004. This article critically reviews and presents the most pertinent new data published in the past decade, which have implications for diagnosis and management. Four elements of the guidelines warrant modification: (i) The definition of DKA; (ii) insulin therapy; (iii) water and salt replacement; and (iv) blood ß-hydroxybutyrate measurements for the management of DKA.
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Affiliation(s)
- Joseph I Wolfsdorf
- Diabetes Program, Division of Endocrinology, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA
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44
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Cerebral hyperemia measured with near infrared spectroscopy during treatment of diabetic ketoacidosis in children. J Pediatr 2013; 163:1111-6. [PMID: 23871731 PMCID: PMC3792791 DOI: 10.1016/j.jpeds.2013.06.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/26/2013] [Accepted: 06/06/2013] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To use near infrared spectroscopy (NIRS) to evaluate the timing of onset and duration of cerebral hyperemia during diabetic ketoacidosis (DKA) treatment in children, and to investigate the relationship of cerebral hyperemia to intravenous fluid treatment. STUDY DESIGN We randomized children aged 8-18 years with DKA to either more rapid or slower intravenous fluid treatment (19 total DKA episodes). NIRS was used to measure rSo2 during DKA treatment. NIRS monitoring began as soon as informed consent was obtained and continued until the patient was transferred out of the critical care unit. RESULTS rSo2 values above the normal range (>80%) were detected in 17 of 19 DKA episodes (mean rSo2 during initial 8 hours of DKA treatment: 86% ± 7%, range 65%-95%). Elevated rSo2 values were detected as early as the second hour of DKA treatment and persisted for as long as 27 hours. Hourly mean rSo2 levels during treatment did not differ significantly by fluid treatment group. CONCLUSIONS During DKA treatment, children have elevated rSo2 values consistent with cerebral hyperemia. Hyperemia occurs as early as the second hour of DKA treatment and may persist for ≥ 27 hours. Cerebral rSo2 levels during treatment did not differ significantly in patients treated with slower versus more rapid intravenous rehydration.
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Increasing use of hypertonic saline over mannitol in the treatment of symptomatic cerebral edema in pediatric diabetic ketoacidosis: an 11-year retrospective analysis of mortality*. Pediatr Crit Care Med 2013; 14:694-700. [PMID: 23863818 DOI: 10.1097/pcc.0b013e3182975cab] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Cerebral edema in diabetic ketoacidosis is a devastating complication with significant morbidity and mortality. This entity has traditionally been treated with mannitol, but use of 3% hypertonic saline has become an accepted alternative. We sought to assess if changes in the use of hyperosmolar therapies for treatment of cerebral edema in diabetic ketoacidosis may have influenced mortality over the last decade. DESIGN Retrospective cohort study. SETTING Patients discharged between 1999 and 2009 from 41 children's hospitals that provided data to the Pediatric Health Information System database. PATIENTS A total of 43,107 children (age < 19) with diagnosis codes related to diabetic ketoacidosis were identified and further classified as having cerebral edema if treated with mannitol and/or 3% hypertonic saline. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Billing for 3% hypertonic saline and mannitol was quantified, and mortality associated with both diabetic ketoacidosis and cerebral edema in diabetic ketoacidosis was examined. Overall mortality in diabetic ketoacidosis was 0.25% and significantly decreased (p < 0.001) over the study period, whereas the frequency of treatment with hyperosmolar agents (3.8%) was unchanged. Use of mannitol as a sole agent decreased from 98% to 49%, 3% hypertonic saline as a sole agent increased from 2% to 39%, and combined therapy increased from 0% to 10%. Use of 3% hypertonic saline alone was associated with a higher mortality than mannitol alone (adjusted odds ratio, 2.71 [95% CI, 1.01-7.26]) in patients treated for cerebral edema. Similar results were obtained after adjustment for the propensity to receive hypertonic saline (adjusted odds ratio, 2.33 [95% CI, 1.07-5.07]) and in the subset of subjects receiving mechanical ventilation (adjusted odds ratio, 3.27 [95% CI, 1.12-9.60]). CONCLUSION Hypertonic saline has replaced mannitol as the most commonly used agent at many institutions for treatment of cerebral edema in diabetic ketoacidosis. In our analysis, however, use of hypertonic saline as a sole agent was associated with an increased risk of mortality. Recognizing the limitations of administrative data, we conclude that equipoise regarding choice of therapy for treatment of cerebral edema in diabetic ketoacidosis should be maintained until a more definitive study is performed to guide therapy of this potentially lethal complication.
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Glaser NS, Ghetti S, Casper TC, Dean JM, Kuppermann N. Pediatric diabetic ketoacidosis, fluid therapy, and cerebral injury: the design of a factorial randomized controlled trial. Pediatr Diabetes 2013; 14:435-46. [PMID: 23490311 PMCID: PMC3687019 DOI: 10.1111/pedi.12027] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 01/02/2013] [Accepted: 01/29/2013] [Indexed: 12/16/2022] Open
Abstract
Treatment protocols for pediatric diabetic ketoacidosis (DKA) vary considerably among centers in the USA and worldwide. The optimal protocol for intravenous (IV) fluid administration is an area of particular controversy, mainly in regard to possible associations between rates of IV fluid infusion and the development of cerebral edema (CE), the most common and the most feared complication of DKA in children. Theoretical concerns about associations between osmotic fluid shifts and CE have prompted recommendations for conservative fluid infusion during DKA. However, recent data suggest that cerebral hypoperfusion may play a role in cerebral injury associated with DKA. Currently, there are no existing data from prospective clinical trials to determine the optimal fluid treatment protocol for pediatric DKA. The Pediatric Emergency Care Applied Research Network FLUID (FLuid therapies Under Investigation in DKA) study is the first prospective randomized trial to evaluate fluid regimens for pediatric DKA. This 13-center nationwide factorial design study will evaluate the effects of rehydration rate and fluid sodium content on neurological status during DKA treatment, the frequency of clinically overt CE and long-term neurocognitive outcomes following DKA.
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Affiliation(s)
- Nicole S. Glaser
- University of California Davis, School of Medicine Department of Pediatrics
| | - Simona Ghetti
- University of California Davis, Department of Psychology
| | | | - J. Michael Dean
- University of Utah School of Medicine, Department of Pediatrics
| | - Nathan Kuppermann
- University of California Davis, School of Medicine Department of Pediatrics
,University of California Davis, School of Medicine Department of Emergency Medicine
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Glaser NS, Wootton-Gorges SL, Buonocore MH, Tancredi DJ, Marcin JP, Caltagirone R, Lee Y, Murphy C, Kuppermann N. Subclinical cerebral edema in children with diabetic ketoacidosis randomized to 2 different rehydration protocols. Pediatrics 2013; 131:e73-80. [PMID: 23230065 PMCID: PMC3529948 DOI: 10.1542/peds.2012-1049] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Previous studies show that vasogenic cerebral edema (CE) occurs during diabetic ketoacidosis (DKA) treatment in children, but the role of intravenous fluids in contributing to CE is unclear. We used magnetic resonance diffusion weighted imaging to quantify subclinical CE in children with DKA randomized to 2 intravenous fluid regimens. METHODS Children with DKA were randomized to receive fluids at a more rapid rate (n = 8) or a slower rate (n = 10), with all other aspects of DKA treatment kept identical. Children underwent diffusion weighted imaging 3 to 6 hours and 9 to 12 hours after beginning DKA treatment and after recovery from DKA (≥ 72 hours after beginning treatment). We calculated brain apparent diffusion coefficient (ADC) values as the average of measurements in the basal ganglia, thalamus, frontal white matter, and hippocampus and determined the mean brain ADC value during DKA treatment by averaging data from the 3- to 6-hour and 9- to 12-hour measurements. The difference in mean brain ADC between DKA treatment and postrecovery was used as an index of the severity of CE during DKA treatment. RESULTS Mean brain ADC values during DKA treatment were significantly higher than postrecovery values, consistent with vasogenic CE (842 ± 38 vs 800 ± 41 × 10(-6) mm(2)/second, P = .002). We did not detect significant differences in ADC elevation in children treated with more rapid versus slower rehydration (β coefficient 0.11 for 1 SD change in ADC, 95% confidence interval: -0.91 to 1.13). CONCLUSIONS ADC changes during DKA treatment (reflective of vasogenic CE) do not appear to be substantially affected by the rate of intravenous fluid administration.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Nathan Kuppermann
- Departments of Pediatrics,,Emergency Medicine, School of Medicine, University of California Davis, Davis, California
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Glaser N, Ngo C, Anderson S, Yuen N, Trifu A, O'Donnell M. Effects of hyperglycemia and effects of ketosis on cerebral perfusion, cerebral water distribution, and cerebral metabolism. Diabetes 2012; 61:1831-7. [PMID: 22498698 PMCID: PMC3379676 DOI: 10.2337/db11-1286] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Diabetic ketoacidosis (DKA) may cause brain injuries in children. The mechanisms responsible are difficult to elucidate because DKA involves multiple metabolic derangements. We aimed to determine the independent effects of hyperglycemia and ketosis on cerebral metabolism, blood flow, and water distribution. We used magnetic resonance spectroscopy to measure ratios of cerebral metabolites (ATP to inorganic phosphate [Pi], phosphocreatine [PCr] to Pi, N-acetyl aspartate [NAA] to creatine [Cr], and lactate to Cr) and diffusion-weighted imaging and perfusion-weighted imaging to assess cerebral water distribution (apparent diffusion coefficient [ADC] values) and cerebral blood flow (CBF) in three groups of juvenile rats (hyperglycemic, ketotic, and normal control). ATP-to-Pi ratio was reduced in both hyperglycemic and ketotic rats in comparison with controls. PCr-to-Pi ratio was reduced in the ketotic group, and there was a trend toward reduction in the hyperglycemic group. No significant differences were observed in NAA-to-Cr or lactate-to-Cr ratio. Cortical ADC was reduced in both groups (indicating brain cell swelling). Cortical CBF was also reduced in both groups. We conclude that both hyperglycemia and ketosis independently cause reductions in cerebral high-energy phosphates, CBF, and cortical ADC values. These effects may play a role in the pathophysiology of DKA-related brain injury.
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Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, School of Medicine, University of California, Davis, Sacramento, California, USA.
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Glaser N, Anderson S, Leong W, Tancredi D, O'Donnell M. Cognitive dysfunction associated with diabetic ketoacidosis in rats. Neurosci Lett 2012; 510:110-4. [PMID: 22266599 DOI: 10.1016/j.neulet.2012.01.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 01/04/2012] [Accepted: 01/05/2012] [Indexed: 12/26/2022]
Abstract
BACKGROUND Type 1 diabetes mellitus in children may be associated with neurocognitive deficits of unclear cause. A recent retrospective study in children suggested possible associations between diabetic ketoacidosis (DKA) and decreased memory. The current investigation was undertaken to determine whether cognitive deficits could be detected after a single episode of DKA in an animal model. METHODS Streptozotocin was used to induce diabetes in juvenile rats, and rats were then treated with subcutaneous insulin injections. In one group, insulin was subsequently withdrawn to allow development of DKA, which was then treated with insulin and saline. After recovery from DKA, subcutaneous insulin injections were re-started. In the diabetes control group, rats continued to receive subcutaneous insulin and underwent sham procedures identical to the DKA group. One week after recovery, cognitive function was tested using the Morris Water Maze, a procedure that requires rats to locate a hidden platform in a water pool using visual cues. During a 10 day period, mean time to locate the platform (latency) during 4 trials per day was recorded. RESULTS Comparison of latency curves demonstrated longer mean latency times on days 7 and 8 in the DKA group indicating delayed learning compared to diabetic controls. CONCLUSIONS These data demonstrate that a single DKA episode results in measurable deficits in learning in rats, consistent with findings that DKA may contribute to neurocognitive deficits in children with type 1 diabetes.
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Affiliation(s)
- Nicole Glaser
- Department of Pediatrics, University of California Davis, School of Medicine, Sacramento, CA 95817, USA.
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Cerebral edema in diabetic ketoacidosis: time to go with the (cerebral blood) flow? Pediatr Crit Care Med 2011; 12:687-9. [PMID: 22067822 DOI: 10.1097/pcc.0b013e3182231248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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