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Bains NK, Huang W, French BR, Siddiq F, Gomez CR, Qureshi AI. Hyperglycemic control in acute ischemic stroke patients undergoing endovascular treatment: post hoc analysis of the Stroke Hyperglycemia Insulin Network Effort trial. J Neurointerv Surg 2023; 15:370-374. [PMID: 35414602 DOI: 10.1136/neurintsurg-2021-018485] [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: 11/22/2021] [Accepted: 03/19/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Hyperglycemia has been associated with poor outcomes in acute ischemic stroke patients undergoing endovascular treatment. We analyzed the effect of intensive glucose control on death and disability rates in patients with acute ischemic stroke undergoing endovascular treatment. METHODS We analyzed the effect of intensive (serum glucose <110 mg/dL) glucose treatment (compared with standard treatment, serum glucose <180 mg/dL) in patients who received endovascular treatment in the Stroke Hyperglycemia Insulin Network Effort (SHINE) trial. We further analyzed the effect of area under the curve (AUC) of serum glucose, proportion of the time blood glucose was <140 mg/dL, and glucose variability defined as the glucose range during 72 hours. The primary outcomes were neurological deterioration within 72 hours and outcome at 90 days. RESULTS A total of 146 patients (mean age 68.1±13.9 years, 50.7% men) underwent endovascular treatment for acute ischemic stroke; 72 and 74 patients were randomized to intensive and standard treatments, respectively. The rates of death (20.3% and 22.2%), favorable 90-day primary outcome (17.6% and 19.4%), and serious adverse events (41.9% and 56.98%) were similar between the two groups. The AUC of serum glucose was not associated with death within 90 days (OR 1, 95% CI 1 to 1) or favorable outcome at 90 days (OR 1, 95% CI 1 to 1). Glucose variability was not associated with death or favorable outcome at 90 days. CONCLUSION We did not identify any beneficial effect of intensive glucose reduction on rates of death or favorable outcomes at 90 days among acute ischemic stroke patients undergoing endovascular treatment.
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Affiliation(s)
- Navpreet K Bains
- Neurology, University of Missouri, Columbia, Missouri, USA .,Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA
| | - Wei Huang
- Neurology, University of Missouri, Columbia, Missouri, USA.,Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA
| | - Brandi R French
- Neurology, University of Missouri, Columbia, Missouri, USA.,Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA
| | - Farhan Siddiq
- Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA.,Neurosurgery, University of Missouri, Columbia, Missouri, USA
| | - Camilo R Gomez
- Neurology, University of Missouri, Columbia, Missouri, USA.,Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA
| | - Adnan I Qureshi
- Neurology, University of Missouri, Columbia, Missouri, USA.,Neurology, Zeenat Qureshi Stroke Institute, St. Cloud, Minnesota, USA
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2
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The Prognostic Significance of Early Glycemic Profile in Acute Ischemic Stroke Depends on Stroke Subtype. J Clin Med 2023; 12:jcm12051794. [PMID: 36902581 PMCID: PMC10003561 DOI: 10.3390/jcm12051794] [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: 01/25/2023] [Revised: 02/16/2023] [Accepted: 02/19/2023] [Indexed: 02/26/2023] Open
Abstract
It is still unclear whether early glycemic profile after admission for acute ischemic stroke (IS) has the same prognostic significance in patients with lacunar and non-lacunar infarction. Data from 4011 IS patients admitted to a Stroke Unit (SU) were retrospectively analyzed. Lacunar IS was diagnosed by clinical criteria. A continuous indicator of early glycemic profile was calculated as the difference of fasting serum glucose (FSG) measured within 48 h after admission and random serum glucose (RSG) measured on admission. Logistic regression was used to estimate the association with a combined poor outcome defined as early neurological deterioration, severe stroke at SU discharge, or 1-month mortality. Among patients without hypoglycemia (RSG and FSG > 3.9 mmol/L), an increasing glycemic profile increased the likelihood of a poor outcome for non-lacunar (OR, 1.38, 95%CI, 1.24-1.52 in those without diabetes; 1.11, 95%CI, 1.05-1.18 in those with diabetes) but not for lacunar IS. Among patients without sustained or delayed hyperglycemia (FSG < 7.8 mmol/L), an increasing glycemic profile was unrelated to outcome for non-lacunar IS but decreased the likelihood of poor outcome for lacunar IS (OR, 0.63, 95%CI, 0.41-0.98). Early glycemic profile after acute IS has a different prognostic significance in non-lacunar and lacunar patients.
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Duan H, Yun HJ, Rajah GB, Che F, Wang Y, Liu J, Tong Y, Cheng Z, Cai L, Geng X, Ding Y. Large vessel occlusion stroke outcomes in diabetic vs. non-diabetic patients with acute stress hyperglycemia. Front Neurosci 2023; 17:1073924. [PMID: 36777640 PMCID: PMC9911880 DOI: 10.3389/fnins.2023.1073924] [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: 10/19/2022] [Accepted: 01/06/2023] [Indexed: 01/28/2023] Open
Abstract
Objective This study assesses whether stress-induced hyperglycemia is a predictor of poor outcome at 3 months for patients with acute ischemic stroke (AIS) treated by endovascular treatment (EVT) and impacted by their previous blood glucose status. Methods This retrospective study collected data from 576 patients with AIS due to large vessel occlusion (LVO) treated by EVT from March 2019 to June 2022. The sample was composed of 230 and 346 patients with and without diabetes mellitus (DM), respectively, based on their premorbid diabetic status. Prognosis was assessed with modified Rankin Scale (mRS) at 3-month after AIS. Poor prognosis was defined as mRS>2. Stress-induced hyperglycemia was assessed by fasting glucose-to-glycated hemoglobin ratio (GAR). Each group was stratified into four groups by quartiles of GAR (Q1-Q4). Binary logistic regression analysis was used to identify relationship between different GAR quartiles and clinical outcome after EVT. Results In DM group, a poor prognosis was seen in 122 (53%) patients and GAR level was 1.27 ± 0.44. These variables were higher than non-DM group and the differences were statistically significant (p < 0.05, respectively). Patients with severe stress-induced hyperglycemia demonstrated greater incidence of 3-month poor prognosis (DM: Q1, 39.7%; Q2, 45.6%; Q3, 58.6%; Q4, 68.4%; p = 0.009. Non-DM: Q1, 31%; Q2, 32.6%; Q3, 42.5%; Q4, 64%; p < 0.001). However, the highest quartile of GAR was independently associated with poor prognosis at 3 months (OR 3.39, 95% CI 1.66-6.96, p = 0.001), compared to the lowest quartile in non-DM patients after logistic regression. This association was not observed from DM patients. Conclusion The outcome of patients with acute LVO stroke treated with EVT appears to be influenced by premorbid diabetes status. However, the poor prognosis at 3-month in patients with DM is not independently correlated with stress-induced hyperglycemia. This could be due to the long-term damage of persistent hyperglycemia and diabetic patients' adaptive response to stress following acute ischemic damage to the brain.
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Affiliation(s)
- Honglian Duan
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Ho Jun Yun
- Department of Neurosurgery, School of Medicine, Wayne State University, Detroit, MI, United States
| | - Gary Benjamin Rajah
- Department of Neurosurgery, Munson Healthcare, Munson Medical Center, Traverse City, MI, United States
| | - Fengli Che
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yanling Wang
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Jing Liu
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yanna Tong
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Zhe Cheng
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Lipeng Cai
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China,*Correspondence: Xiaokun Geng,
| | - Yuchuan Ding
- Department of Neurosurgery, School of Medicine, Wayne State University, Detroit, MI, United States,Yuchuan Ding,
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4
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Yao M, Hao Y, Wang T, Xie M, Li H, Feng J, Feng L, Ma D. A review of stress-induced hyperglycaemia in the context of acute ischaemic stroke: Definition, underlying mechanisms, and the status of insulin therapy. Front Neurol 2023; 14:1149671. [PMID: 37025208 PMCID: PMC10070880 DOI: 10.3389/fneur.2023.1149671] [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: 01/22/2023] [Accepted: 02/21/2023] [Indexed: 04/08/2023] Open
Abstract
The transient elevation of blood glucose produced following acute ischaemic stroke (AIS) has been described as stress-induced hyperglycaemia (SIH). SIH is common even in patients with AIS who have no previous diagnosis of diabetes mellitus. Elevated blood glucose levels during admission and hospitalization are strongly associated with enlarged infarct size and adverse prognosis in AIS patients. However, insulin-intensive glucose control therapy defined by admission blood glucose for SIH has not achieved the desired results, and new treatment ideas are urgently required. First, we explore the various definitions of SIH in the context of AIS and their predictive value in adverse outcomes. Then, we briefly discuss the mechanisms by which SIH arises, describing the dual effects of elevated glucose levels on the central nervous system. Finally, although preclinical studies support lowering blood glucose levels using insulin, the clinical outcomes of intensive glucose control are not promising. We discuss the reasons for this phenomenon.
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Affiliation(s)
- Mengyue Yao
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yulei Hao
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Tian Wang
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Meizhen Xie
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hui Li
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Jiachun Feng
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Liangshu Feng
- Stroke Centre, Department of Neurology, The First Hospital of Jilin University, Changchun, Jilin, China
- Liangshu Feng
| | - Di Ma
- Department of Neurology and Neuroscience Centre, The First Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Di Ma
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Psoma O, Makris M, Tselepis A, Tsimihodimos V. Short-term Glycemic Variability and Its Association With Macrovascular and Microvascular Complications in Patients With Diabetes. J Diabetes Sci Technol 2022:19322968221146808. [PMID: 36576014 DOI: 10.1177/19322968221146808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The introduction of continuous glucose monitoring inaugurated a new era in clinical practice by shifting the characterization of glycemic control from HbA1c to novel metrics. The one that gained widespread attention over the past decades was glycemic variability (GV), which typically refers to peaks and nadirs of blood glucose measured over a given time interval. GV can be dichotomized into two main categories: short-term and long-term. Short-term GV reflects within-day and between-day glycemic oscillations, and its contribution to diabetic complications remains an enigma. In this review, we summarize the available data about short-term GV and its possible association with both microvascular and macrovascular complications, evaluating different pathogenic mechanisms and demonstrating nonpharmaceutical, as well as pharmaceutical, therapeutic interventions.
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Affiliation(s)
- Ourania Psoma
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Marios Makris
- UCL Medical School, University College London, London, UK
| | - Alexandros Tselepis
- Atherothrombosis Research Centre/Laboratory of Biochemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Vasilis Tsimihodimos
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
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6
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Lin J, Cai C, Xie Y. Acute Glycemic Variability and Functional Outcome in Patients with Acute Ischemic Stroke: A Meta-Analysis. Horm Metab Res 2022; 54:371-379. [PMID: 35697046 DOI: 10.1055/a-1837-0141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Dysglycemia are involved in the development of functional impairment after acute ischemic stroke (AIS). The aim of the study was to evaluate the association between acute glycemic variability and functional outcome in patients with AIS. Cohort studies were obtained by search Medline, Web of Science, Embase, Wanfang, and China National Knowledge Infrastructure databases from inception to November, 2021. A random-effect model which incorporates the intra-study heterogeneity was chosen to pool the results. Ten cohort studies including 3038 patients were included, and 1319 (43.4%) had poor functional outcome (modified Rankin Scale >2) up to three months after disease onset. Pooled results showed that higher acute GV was associated with an increased risk of poor functional outcome, as evidenced by GV evaluated by the standard deviation of blood glucose (SDBG, OR: 1.91, 95% CI: 1.38 to 2.65, I2=60%, p<0.001), the coefficient of variation of blood glucose (OR: 2.03, 95% CI: 1.15 to 3.58, I2=17%, p=0.02), the range of glucose (OR: 1.43, 95% CI: 1.11 to 1.83, I2=22%, p=0.005), and the mean amplitude of glycemic excursion (OR: 1.59, 95% CI: 1.10 to 2.31, I2=0%, p=0.01). Subgroup analyses did not support that difference in study design, treatments for AIS, mean age of the patients, duration for GV measuring, or study quality would significantly affect the association between SDBG and functional outcome after AIS. In conclusion, higher acute glycemic variability may predict poor functional outcome within 3 months after AIS.
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Affiliation(s)
- Jinbo Lin
- Department of Neurology, Huizhou First Hospital, Huizhou, China
| | - Chunsheng Cai
- Department of Neurology, Huizhou First Hospital, Huizhou, China
| | - Yituan Xie
- Department of Neurology, Huizhou First Hospital, Huizhou, China
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Torbey MT, Pauls Q, Gentile N, Falciglia M, Meurer W, Pettigrew CL, Durkalski VL, Bleck T, Bruno A. Intensive Versus Standard Treatment of Hyperglycemia in Acute Ischemic Stroke Patient: A Randomized Clinical Trial Subgroups Analysis. Stroke 2022; 53:1510-1515. [PMID: 35331007 PMCID: PMC9022682 DOI: 10.1161/strokeaha.120.033048] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Benefit from blood glucose (BG) control during acute ischemic stroke may depend on glycemic parameters. We evaluated for associations between the SHINE (Stroke Hyperglycemia Insulin Network Effort) randomized treatment group and the SHINE predefined 90-day functional outcome, within-patient subgroups defined by various glycemic parameters.
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Affiliation(s)
- Michel T Torbey
- Department of Neurology, University of New Mexico, Albuquerque (M.T.T.)
| | - Qi Pauls
- Department of Public Health Sciences, Medical University of South Carolina, Charleston (Q.P., V.L.D.)
| | - Nina Gentile
- Department of Emergency Medicine, Temple University, Philadelphia, PA (N.G.)
| | - Mercedes Falciglia
- Department of Internal Medicine and Cincinnati VAMC, University of Cincinnati College of Medicine, OH (M.F.)
| | - William Meurer
- Department of Emergency Medicine, University of Michigan, Ann Arbor (W.M.)
| | | | - Valerie L Durkalski
- Department of Public Health Sciences, Medical University of South Carolina, Charleston (Q.P., V.L.D.)
| | - Thomas Bleck
- Department of Neurology, Northwestern University, Chicago, IL (T.B.)
| | - Askiel Bruno
- Department of Neurology, Augusta University, GA (A.B.)
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8
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Cai Y, Zhang H, Li Q, Zhang P. Correlation Between Blood Glucose Variability and Early Therapeutic Effects After Intravenous Thrombolysis With Alteplase and Levels of Serum Inflammatory Factors in Patients With Acute Ischemic Stroke. Front Neurol 2022; 13:806013. [PMID: 35273556 PMCID: PMC8901988 DOI: 10.3389/fneur.2022.806013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/24/2022] [Indexed: 01/01/2023] Open
Abstract
Objective To investigate the effects of blood glucose variability on early therapeutic effects after intravenous thrombolysis with alteplase and the levels of serum inflammatory factors in patients with acute ischemic stroke (AIS). Methods We enrolled AIS patients who received intravenous thrombolysis within 4.5 h of the onset of symptoms. Clinical data, including the National Institutes of Health Stroke Scale (NIHSS), glycosylated hemoglobin, mean blood glucose, standard deviation of blood glucose, mean amplitude of glycemic excursion, mean variation coefficient of blood glucose, interleukin-6 (IL-6), active matrix metalloproteinase-9 (MMP-9), tumor necrosis factor α (TNF-α), and hypersensitive C-reactive protein (hs-CRP) levels, were compared between a group who showed improvement (the improvement group) and a group who did not show improvement (the non-improvement group). Relevant factors for early neurological improvement after thrombolysis with alteplase were analyzed by using multivariate logistic regression models. A Pearson linear correlation analysis was also performed on blood glucose variation and inflammatory factor levels within the two groups. Results A total of 146 patients were included, 63 of which had early symptom improvement (43.15%). The diabetes ratio, atrial fibrillation ratio, baseline NHISS score, random blood glucose at admission, and glycosylated hemoglobin of patients in the improvement group were significantly lower than those in the non-improvement group (P < 0.05 in all cases). The mean blood glucose, standard deviation of blood glucose, mean amplitude of glycemic excursion, and mean blood glucose variation coefficients of patients in the improvement group were significantly lower than those in the non-improvement group (P < 0.05). Serum inflammatory factor levels, including IL-6, MMP-9, TNF-α and hs-CRP, were significantly lower in patients in the improvement group compared to patients in the non-improvement group (P < 0.05). Multivariate logistic regression analysis showed that baseline NIHSS scores (OR = 1.28, 95% CI = 1.05–1.62, P = 0.02), glycosylated hemoglobin scores (OR = 2.57, 95% CI = 1.78–3.98, P = 0.0005), diabetes (OR = 13.10, 95% CI = 1.63~131.45, P = 0.021), the mean amplitude of glycemic excursion (OR = 2.98, 95% CI = 1.92–5.00, P < 0.0001), and the mean variation coefficient of blood glucose (OR = 1.40, 95% CI = 1.26–1.60, P = 0.0078) were significantly correlated with early symptom improvement after thrombolysis. Pearson linear correlation analysis showed that the standard deviation of blood glucose, mean amplitude of glycemic excursion, and the mean variation coefficient of blood glucose were significantly positively correlated with IL-6, MMP-9, TNF-α and hs-CRP levels (P < 0.01). Conclusions Blood glucose variability is correlated with early neurological improvement after intravenous thrombolysis with alteplase in AIS patients. With the increase of blood glucose fluctuation range, the inflammatory response is enhanced, which affects the prognosis of patients.
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Affiliation(s)
- Yun Cai
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China.,Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
| | - Hongtao Zhang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Qiang Li
- Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
| | - Peilan Zhang
- Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
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9
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Baudu J, Gerbaud E, Catargi B, Montaudon M, Beauvieux MC, Sagnier S, Debruxelles S, Renou P, Poli M, Olindo S, Couture M, Marnat G, Sibon I. High glycemic variability: An underestimated determinant of stroke functional outcome following large vessel occlusion. Rev Neurol (Paris) 2022; 178:732-740. [DOI: 10.1016/j.neurol.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/19/2022]
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10
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Palaiodimou L, Lioutas VA, Lambadiari V, Theodorou A, Themistocleous M, Aponte L, Papagiannopoulou G, Foska A, Bakola E, Quispe R, Mendez L, Selim M, Novak V, Tzavellas E, Halvatsiotis P, Voumvourakis K, Tsivgoulis G. Glycemic variability of acute stroke patients and clinical outcomes: a continuous glucose monitoring study. Ther Adv Neurol Disord 2021; 14:17562864211045876. [PMID: 34589140 PMCID: PMC8474316 DOI: 10.1177/17562864211045876] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/24/2021] [Indexed: 01/04/2023] Open
Abstract
Introduction: Glycemic variability (GV) has been associated with worse prognosis in
critically ill patients. We sought to evaluate the potential association
between GV indices and clinical outcomes in acute stroke patients. Methods: Consecutive diabetic and nondiabetic, acute ischemic or hemorrhagic stroke
patients underwent regular, standard-of-care finger-prick measurements and
continuous glucose monitoring (CGM) for up to 96 h. Thirteen GV indices were
obtained from CGM data. Clinical outcomes during hospitalization and
follow-up period (90 days) were recorded. Hypoglycemic episodes disclosed by
CGM but missed by finger-prick measurements were also documented. Results: A total of 62 acute stroke patients [48 ischemic and 14 hemorrhagic, median
NIHSS score: 9 (IQR: 3–16) points, mean age: 65 ± 10 years, women: 47%,
nondiabetic: 79%] were enrolled. GV expressed by higher mean absolute
glucose (MAG) values was associated with a lower likelihood of neurological
improvement during hospitalization before and after adjusting for potential
confounders (OR: 0.135, 95% CI: 0.024–0.751, p = 0.022).
There was no association of GV indices with 3-month clinical outcomes.
During CGM recording, 32 hypoglycemic episodes were detected in 17
nondiabetic patients. None of these episodes were identified by the periodic
blood glucose measurements and therefore they were not treated. Conclusions: Greater GV of acute stroke patients may be related to lower odds of
neurological improvement during hospitalization. No association was
disclosed between GV indices and 3-month clinical outcomes.
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Affiliation(s)
- Lina Palaiodimou
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | | | - Vaia Lambadiari
- Second Department of Internal Medicine-Propaedeutic and Diabetes Center, Medical School, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Aikaterini Theodorou
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Marios Themistocleous
- Department of Neurosurgery, Pediatric Hospital of Athens, Agia Sophia, Athens, Greece
| | - Laura Aponte
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Georgia Papagiannopoulou
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Aikaterini Foska
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Eleni Bakola
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Rodrigo Quispe
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Laura Mendez
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Magdy Selim
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Vera Novak
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Elias Tzavellas
- First Department of Psychiatry, Aiginition Hospital, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Halvatsiotis
- Second Department of Internal Medicine-Propaedeutic and Diabetes Center, Medical School, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Voumvourakis
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Athens, Greece
| | - Georgios Tsivgoulis
- Second Department of Neurology, School of Medicine, University General Hospital 'Attikon', National and Kapodistrian University of Athens, Rimini 1, Chaidari, Athens 12462, Greece
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11
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Kim TJ, Lee JS, Park SH, Ko SB. Short-term glycemic variability and hemorrhagic transformation after successful endovascular thrombectomy. Transl Stroke Res 2021; 12:968-975. [PMID: 33576937 DOI: 10.1007/s12975-021-00895-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/09/2021] [Accepted: 02/02/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Glycemic variability (GV) is a risk factor for poor outcomes after ischemic stroke. However, its effect on hemorrhagic transformation after endovascular recanalization therapy (ERT) remains to be elucidated. METHODS Patients with acute ischemic stroke due to large vessel occlusion with successful recanalization after ERT (modified thrombolysis in cerebral infarction 2b or 3) were enrolled between January 2013 and November 2019. Blood glucose level data were obtained during the first 36 h after ERT, and ten GV parameters including time rate (TR) of glucose variation were assessed. The TR of glucose variation reflects the speed of glucose fluctuations over time (mg/dL/hour) during the monitoring period. Symptomatic intracerebral hemorrhage (sICH) and unfavorable outcomes at 3 months after ERT were analyzed. The sICH was defined as parenchymal hematoma type 2 with a neurological deterioration of 4 points or more on the National Institute of Health Stroke Scale. Moreover, a modified Rankin Scale of 3-6 at 3 months was considered an unfavorable outcome. RESULTS Among all patients (n = 176; mean age, 69.3 years; 47.7 % female), sICH developed after successful ERT in 16 (9.1%) patients. In addition, 54% (n = 95) patients had an unfavorable outcome at 3 months. Patients with sICH and unfavorable outcome had higher the TR of glucose variation. After adjusting for potential confounders, the TR of glucose (per 1 mg/dL/h increase) variation was independently associated with sICH (odds ratio, 1.17; 95% confidence interval [CI], 1.012-1.343) and 3-month unfavorable outcome (OR 1.14, 95% CI, 1.000-1.297). CONCLUSIONS Time-related GV during the first 36 h after successful ERT has a stronger correlation with sICH and poor functional outcomes compared to any GV parameters. This suggests that maintaining stable glucose may be an important factor in the prevention of sICH after undergoing successful ERT.
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Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji Sung Lee
- Department of Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Soo-Hyun Park
- Department of Neurology, Inha University Hospital, Incheon, Republic of Korea
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
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Fuentes B, Pastor-Yborra S, Gutiérrez-Zúñiga R, González-Pérez de Villar N, de Celis E, Rodríguez-Pardo J, Gómez-de Frutos MC, Laso-García F, Gutiérrez-Fernández M, Ortega-Casarrubios MÁ, Soto A, López-Fernández M, Santamaría M, Díez-González N, Freijo MM, Zandio B, Delgado-Mederos R, Calleja A, Portilla-Cuenca JC, Lisbona A, Otero-Ortega L, Díez-Tejedor E. Glycemic variability: prognostic impact on acute ischemic stroke and the impact of corrective treatment for hyperglycemia. The GLIAS-III translational study. J Transl Med 2020; 18:414. [PMID: 33148277 PMCID: PMC7610240 DOI: 10.1186/s12967-020-02586-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/24/2020] [Indexed: 12/17/2022] Open
Abstract
Introduction Glycemic variability (GV) represents the amplitude of oscillations in glucose levels over time and is associated with higher mortality in critically ill patients. Our aim is to evaluate the impact of GV on acute ischemic stroke (IS) outcomes in humans and explore the impact of two different insulin administration routes on GV in an animal model. Methods This translational study consists of two studies conducted in parallel: The first study is an observational, multicenter, prospective clinical study in which 340 patients with acute IS will be subcutaneously implanted a sensor to continuously monitor blood glucose levels for 96 h. The second study is a basic experimental study using an animal model (rats) with permanent occlusion of the middle cerebral artery and induced hyperglycemia (through an intraperitoneal injection of nicotinamide and streptozotocin). The animal study will include the following 6 groups (10 animals per group): sham; hyperglycemia without IS; IS without hyperglycemia; IS and hyperglycemia without treatment; IS and hyperglycemia and intravenous insulin; and IS and hyperglycemia and subcutaneous insulin. The endpoint for the first study is mortality at 3 months, while the endpoints for the animal model study are GV, functional recovery and biomarkers. Discussion The GLIAS-III study will be the first translational approach analyzing the prognostic influence of GV, evaluated by the use of subcutaneous glucose monitors, in acute stroke. Trial registrationhttps://www.clinicaltrials.gov (NCT04001049)
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Affiliation(s)
- Blanca Fuentes
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain.
| | - Silvia Pastor-Yborra
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Raquel Gutiérrez-Zúñiga
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Noemí González-Pérez de Villar
- Department of Endocrinology, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Elena de Celis
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Jorge Rodríguez-Pardo
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Mari Carmen Gómez-de Frutos
- Neurological Sciences and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Centre, Neuroscience Area, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Fernando Laso-García
- Neurological Sciences and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Centre, Neuroscience Area, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - María Gutiérrez-Fernández
- Neurological Sciences and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Centre, Neuroscience Area, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - MÁngeles Ortega-Casarrubios
- Department of Neurology, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Madrid, Spain
| | - Alfonso Soto
- Department of Endocrinology, Hospital Universitario A Coruña, A Coruña, Spain
| | | | - María Santamaría
- Department of Neurology, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Santiago de Compostela, Spain
| | | | - Mar M Freijo
- Biocruces Bizkaia Health Research Institute, Department of Neurology, Hospital Universitario Cruces, Bizkaia, Spain
| | - Beatriz Zandio
- Department of Neurology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | | | - Ana Calleja
- Department of Neurology, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | | | - Arturo Lisbona
- Department of Endocrinology, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
| | - Laura Otero-Ortega
- Neurological Sciences and Cerebrovascular Research Laboratory, Department of Neurology and Stroke Centre, Neuroscience Area, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain.
| | - Exuperio Díez-Tejedor
- Department of Neurology and Stroke Centre, Hospital La Paz Institute for Health Research-IdiPAZ (La Paz University Hospital, Universidad Autónoma de Madrid), Paseo de la Castellana 261, 28046, Madrid, Spain
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13
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Wang SH, Xu C, Tan TL, Goswami K, Cooper AM, Parvizi J. Increased Postoperative Glucose Variability Is Associated With Adverse Outcome Following Two-Stage Exchange Arthroplasty for Periprosthetic Joint Infection. J Arthroplasty 2020; 35:1368-1373. [PMID: 31932102 DOI: 10.1016/j.arth.2019.11.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 11/04/2019] [Accepted: 11/30/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Glucose variability in the postoperative period has been associated with increased rates of periprosthetic joint infection (PJI) following primary arthroplasty. It is unknown how postoperative glucose control affects outcome of surgical treatment of PJI patients. We hypothesized that postoperative glucose variability adversely affects the outcome of 2-stage exchange arthroplasty. METHODS We retrospectively reviewed records of 665 patients with PJI of the knee and hip who underwent 2-stage exchange arthroplasty from 2000 to 2017. Of them, 341 PJIs with a minimum follow-up of 1 year, and either a minimum of 2 glucose values per day or greater than 3 overall during the reimplantation were included. Glucose variability was assessed by calculating the coefficient of variation. Adverse outcomes included treatment failure according to the Delphi consensuses criteria, reinfection, reoperation, and mortality. A subgroup analysis was performed based on patients with or without diabetes. RESULTS Glucose variability following reimplantation was associated with higher treatment failure, reinfection, and reoperation. Adjusted analysis indicated that for every standard deviation (15%) increase in the coefficient of variation, the risks of treatment failure, reinfection, and reoperation increased by 27%, 31%, and 26%. Although stratifying patients with (n = 81) or without diabetes (n = 260), these associations remained robust in nondiabetic patients, but not in diabetic patients. CONCLUSION Higher glucose variability is associated with increased risks of treatment failure, reinfection, and reoperation after 2-stage exchange arthroplasty in PJI patients. Compared to diabetic patients, nondiabetic patients have a higher association between glucose variability and poor outcomes. Reducing adverse outcomes may be achieved with close monitoring and strict postoperative glucose control.
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Affiliation(s)
- Sheng-Hao Wang
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA; Department of Orthopaedics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chi Xu
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA; Department of Orthopaedic Surgery, General Hospital of People's Liberation Army, Beijing, People's Republic of China
| | - Timothy L Tan
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | - Karan Goswami
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | - Alexus M Cooper
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | - Javad Parvizi
- Rothman Institute, Thomas Jefferson University, Philadelphia, PA
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Palaiodimou L, Lioutas VA, Lambadiari V, Paraskevas GP, Voumvourakis K, Tsivgoulis G. Glycemia management in acute ischemic stroke: current concepts and novel therapeutic targets. Postgrad Med 2019; 131:423-437. [DOI: 10.1080/00325481.2019.1651206] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Lina Palaiodimou
- Second Department of Neurology, “Attikon” University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Vaia Lambadiari
- Second Department of Internal Medicine, Research Institute and Diabetes Center, Athens University Medical School, “Attikon” University Hospital, Haidari, Greece
| | - George P. Paraskevas
- Cognitive and Movement Disorders Unit and Unit of Neurochemistry and Biological Markers, First Department of Neurology, “Eginition” University Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantinos Voumvourakis
- Second Department of Neurology, “Attikon” University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgios Tsivgoulis
- Second Department of Neurology, “Attikon” University Hospital, National and Kapodistrian University of Athens, Athens, Greece
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
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Oh TK, Heo E, Song IA, Jeong WJ, Han M, Bang JS. Increased Glucose Variability During Long-Term Therapeutic Hypothermia as a Predictor of Poor Neurological Outcomes and Mortality: A Retrospective Study. Ther Hypothermia Temp Manag 2019; 10:106-113. [PMID: 31161969 DOI: 10.1089/ther.2019.0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Therapeutic hypothermia (TH) is considered as a treatment option in patients with stroke and brain injury for controlling intracranial pressure. A relatively longer duration of TH is required in such patients than in cardiac arrest patients. We aimed to investigate blood glucose parameters during TH that predict unfavorable neurological outcomes and mortality in patients admitted to the neurological or neurosurgical intensive care unit (ICU). This retrospective study evaluated electronic medical records of patients admitted to the ICU from January 1, 2012, to May 20, 2017. A total of 103 patients were included in the analyses. Multivariable analyses revealed that age and glycemic variability (GV) index were significantly associated with poor neurological outcomes (odds ratio [OR] 1.09, 95% confidence interval [CI] 1.03-1.15, p = 0.002, and OR 1.04, 95% CI 1.02-1.06, p < 0.001, respectively); furthermore, cumulative input-output balance, sequential organ failure assessment score, and glucose variability index were associated with 90-day mortality (hazard ratio [HR] 1.13, 95% CI 1.05-1.21, p < 0.001; HR 1.20, 95% CI 1.04-1.38, p = 0.010; and HR 1.01, 95% CI 1.01-1.02, p < 0.001, respectively). Receiver operating characteristic curve analyses of the GV index for prediction of 90-day mortality and poor neurological outcomes revealed that the areas under the curves were 0.747 (95% CI 0.65-0.85) and 0.826 (95% CI 0.75-0.91), respectively. In conclusion, variability in glucose levels may be valuable for predicting 90-day mortality and poor neurological outcomes in patients undergoing long-term TH.
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Affiliation(s)
- Tak Kyu Oh
- Interdepartment of Critical Care Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.,Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Eunjeong Heo
- Interdepartment of Critical Care Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.,Department of Pharmacy, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - In-Ae Song
- Interdepartment of Critical Care Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.,Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Won Joo Jeong
- Department of Neurosurgery, School of Medicine, Kyung Hee University Medical Center, Seoul, Republic of Korea
| | - Moonku Han
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jae Seung Bang
- Department of Neurosurgery, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Hwang JJ, Jiang L, Sanchez Rangel E, Fan X, Ding Y, Lam W, Leventhal J, Dai F, Rothman DL, Mason GF, Sherwin RS. Glycemic Variability and Brain Glucose Levels in Type 1 Diabetes. Diabetes 2019; 68:163-171. [PMID: 30327383 PMCID: PMC6302539 DOI: 10.2337/db18-0722] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/09/2018] [Indexed: 02/06/2023]
Abstract
The impact of glycemic variability on brain glucose transport kinetics among individuals with type 1 diabetes mellitus (T1DM) remains unclear. Fourteen individuals with T1DM (age 35 ± 4 years; BMI 26.0 ± 1.4 kg/m2; HbA1c 7.6 ± 0.3) and nine healthy control participants (age 32 ± 4; BMI 23.1 ± 0.8; HbA1c 5.0 ± 0.1) wore a continuous glucose monitor (Dexcom) to measure hypoglycemia, hyperglycemia, and glycemic variability for 5 days followed by 1H MRS scanning in the occipital lobe to measure the change in intracerebral glucose levels during a 2-h glucose clamp (target glucose concentration 220 mg/dL). Hyperglycemic clamps were also performed in a rat model of T1DM to assess regional differences in brain glucose transport and metabolism. Despite a similar change in plasma glucose levels during the hyperglycemic clamp, individuals with T1DM had significantly smaller increments in intracerebral glucose levels (P = 0.0002). Moreover, among individuals with T1DM, the change in brain glucose correlated positively with the lability index (r = 0.67, P = 0.006). Consistent with findings in humans, streptozotocin-treated rats had lower brain glucose levels in the cortex, hippocampus, and striatum compared with control rats. These findings that glycemic variability is associated with brain glucose levels highlight the need for future studies to investigate the impact of glycemic variability on brain glucose kinetics.
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Affiliation(s)
- Janice J Hwang
- Section of Endocrinology, Yale School of Medicine, New Haven, CT
| | - Lihong Jiang
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT
| | | | - Xiaoning Fan
- Section of Endocrinology, Yale School of Medicine, New Haven, CT
| | - Yuyan Ding
- Section of Endocrinology, Yale School of Medicine, New Haven, CT
| | - Wai Lam
- Section of Endocrinology, Yale School of Medicine, New Haven, CT
| | | | - Feng Dai
- Yale Center for Analytical Sciences, Yale School of Public Health, New Haven, CT
| | - Douglas L Rothman
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT
| | - Graeme F Mason
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT
- Department of Psychiatry, Yale School of Medicine, New Haven, CT
| | - Robert S Sherwin
- Section of Endocrinology, Yale School of Medicine, New Haven, CT
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The Role of Circular RNAs in Cerebral Ischemic Diseases: Ischemic Stroke and Cerebral Ischemia/Reperfusion Injury. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1087:309-325. [PMID: 30259377 DOI: 10.1007/978-981-13-1426-1_25] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cerebral ischemic diseases including ischemic stroke and cerebral ischemia reperfusion injury can result in serious dysfunction of the brain, which leads to extremely high mortality and disability. There are no effective therapeutics for cerebral ischemic diseases to date. Circular RNAs are a kind of newly investigated noncoding RNAs. It is reported that circular RNAs are enriched in multiple organs, especially abundant in the brain, which indicates that circular RNAs may be involved in cerebral physiological and pathological processes. In this chapter, we will firstly review the pathophysiology, underlying mechanisms, and current treatments of cerebral ischemic diseases including ischemic stroke and cerebral ischemia/reperfusion injury. Secondly, the characteristics and function of circular RNAs will be outlined, and then we are going to introduce the roles circular RNAs play in human diseases. Finally, we will summarize the function of circular RNAs in cerebral ischemic diseases.
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Zhang K, Shi Z, Zhou J, Xing Q, Ma S, Li Q, Zhang Y, Yao M, Wang X, Li Q, Li J, Guan F. Potential application of an injectable hydrogel scaffold loaded with mesenchymal stem cells for treating traumatic brain injury. J Mater Chem B 2018; 6:2982-2992. [DOI: 10.1039/c7tb03213g] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this contribution, we developed an injectable hydrogel composed of sodium alginate and hyaluronic acid that acts as a tissue scaffold to create a more optimal microenvironment for the stem cells for potential application of traumatic brain injury implantation.
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