Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes

Acute hyperglycemia has been shown to cause cognitive impairments in animal models. There is growing appreciation of the numerous effects of hyperglycemia on neuronal function as well as blood–brain barrier function. In humans, hypoglycemia is well known to cause cognitive deficits acutely, but hype...

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Main Authors: Joseph Cerasuolo, Anthony Izzo
Format: Article
Language:English
Published: Bioscientifica 2017-12-01
Series:Endocrinology, Diabetes & Metabolism Case Reports
Online Access:https://www.edmcasereports.com/articles/endocrinology-diabetes-and-metabolism-case-reports/10.1530/EDM-17-0101
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author Joseph Cerasuolo
Anthony Izzo
author_facet Joseph Cerasuolo
Anthony Izzo
author_sort Joseph Cerasuolo
collection DOAJ
description Acute hyperglycemia has been shown to cause cognitive impairments in animal models. There is growing appreciation of the numerous effects of hyperglycemia on neuronal function as well as blood–brain barrier function. In humans, hypoglycemia is well known to cause cognitive deficits acutely, but hyperglycemia has been less well studied. We present a case of selective neurocognitive deficits in the setting of acute hyperglycemia. A 60-year-old man was admitted to the hospital for an episode of acute hyperglycemia in the setting of newly diagnosed diabetes mellitus precipitated by steroid use. He was managed with insulin therapy and discharged home, and later, presented with complaints of memory impairment. Deficits included impairment in his declarative and working memory, to the point of significant impairment in his overall functioning. The patient had no structural lesions on MRI imaging of the brain or other systemic illnesses to explain his specific deficits. We suggest that his acute hyperglycemia may have caused neurological injury, and may be responsible for our patient’s memory complaints.
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spelling doaj.art-a359dbd91bd44a6eb826bc5a0a0c52f02022-12-22T00:11:59ZengBioscientificaEndocrinology, Diabetes & Metabolism Case Reports2052-05732052-05732017-12-01111410.1530/EDM-17-0101Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetesJoseph Cerasuolo0Anthony Izzo1Department of Neurology and Department of Internal Medicine, St. Vincent Hospital, Worcester, Massachusetts, USADepartment of Neurology and Department of Internal Medicine, St. Vincent Hospital, Worcester, Massachusetts, USAAcute hyperglycemia has been shown to cause cognitive impairments in animal models. There is growing appreciation of the numerous effects of hyperglycemia on neuronal function as well as blood–brain barrier function. In humans, hypoglycemia is well known to cause cognitive deficits acutely, but hyperglycemia has been less well studied. We present a case of selective neurocognitive deficits in the setting of acute hyperglycemia. A 60-year-old man was admitted to the hospital for an episode of acute hyperglycemia in the setting of newly diagnosed diabetes mellitus precipitated by steroid use. He was managed with insulin therapy and discharged home, and later, presented with complaints of memory impairment. Deficits included impairment in his declarative and working memory, to the point of significant impairment in his overall functioning. The patient had no structural lesions on MRI imaging of the brain or other systemic illnesses to explain his specific deficits. We suggest that his acute hyperglycemia may have caused neurological injury, and may be responsible for our patient’s memory complaints.https://www.edmcasereports.com/articles/endocrinology-diabetes-and-metabolism-case-reports/10.1530/EDM-17-0101
spellingShingle Joseph Cerasuolo
Anthony Izzo
Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
Endocrinology, Diabetes & Metabolism Case Reports
title Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
title_full Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
title_fullStr Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
title_full_unstemmed Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
title_short Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
title_sort persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
url https://www.edmcasereports.com/articles/endocrinology-diabetes-and-metabolism-case-reports/10.1530/EDM-17-0101
work_keys_str_mv AT josephcerasuolo persistentimpairmentinworkingmemoryfollowingseverehyperglycemiainnewlydiagnosedtype2diabetes
AT anthonyizzo persistentimpairmentinworkingmemoryfollowingseverehyperglycemiainnewlydiagnosedtype2diabetes