The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases

Inositols are sugar-like compounds that are widely distributed in nature and are a part of membrane molecules, participating as second messengers in several cell-signaling processes. Isolation and characterization of inositol phosphoglycans containing myo- or <span style="font-variant: small...

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Main Authors: Antonio J. López-Gambero, Carlos Sanjuan, Pedro Jesús Serrano-Castro, Juan Suárez, Fernando Rodríguez de Fonseca
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/8/9/295
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author Antonio J. López-Gambero
Carlos Sanjuan
Pedro Jesús Serrano-Castro
Juan Suárez
Fernando Rodríguez de Fonseca
author_facet Antonio J. López-Gambero
Carlos Sanjuan
Pedro Jesús Serrano-Castro
Juan Suárez
Fernando Rodríguez de Fonseca
author_sort Antonio J. López-Gambero
collection DOAJ
description Inositols are sugar-like compounds that are widely distributed in nature and are a part of membrane molecules, participating as second messengers in several cell-signaling processes. Isolation and characterization of inositol phosphoglycans containing myo- or <span style="font-variant: small-caps;">d</span>-chiro-inositol have been milestones for understanding the physiological regulation of insulin signaling. Other functions of inositols have been derived from the existence of multiple stereoisomers, which may confer antioxidant properties. In the brain, fluctuation of inositols in extracellular and intracellular compartments regulates neuronal and glial activity. Myo-inositol imbalance is observed in psychiatric diseases and its use shows efficacy for treatment of depression, anxiety, and compulsive disorders. Epi- and scyllo-inositol isomers are capable of stabilizing non-toxic forms of β-amyloid proteins, which are characteristic of Alzheimer’s disease and cognitive dementia in Down’s syndrome, both associated with brain insulin resistance. However, uncertainties of the intrinsic mechanisms of inositols regarding their biology are still unsolved. This work presents a critical review of inositol actions on insulin signaling, oxidative stress, and endothelial dysfunction, and its potential for either preventing or delaying cognitive impairment in aging and neurodegenerative diseases. The biomedical uses of inositols may represent a paradigm in the industrial approach perspective, which has generated growing interest for two decades, accompanied by clinical trials for Alzheimer’s disease.
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spelling doaj.art-c46db138c4b84b7bb9c9410fde7cf27a2023-11-20T10:46:34ZengMDPI AGBiomedicines2227-90592020-08-018929510.3390/biomedicines8090295The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative DiseasesAntonio J. López-Gambero0Carlos Sanjuan1Pedro Jesús Serrano-Castro2Juan Suárez3Fernando Rodríguez de Fonseca4Departamento de Biología Celular, Genética y Fisiología, Campus de Teatinos s/n, Universidad de Málaga, Andalucia Tech, 29071 Málaga, SpainEURONUTRA S.L., 29590 Málaga, SpainUGC Neurología, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, 29010 Málaga, SpainUGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, 29010 Málaga, SpainUGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, 29010 Málaga, SpainInositols are sugar-like compounds that are widely distributed in nature and are a part of membrane molecules, participating as second messengers in several cell-signaling processes. Isolation and characterization of inositol phosphoglycans containing myo- or <span style="font-variant: small-caps;">d</span>-chiro-inositol have been milestones for understanding the physiological regulation of insulin signaling. Other functions of inositols have been derived from the existence of multiple stereoisomers, which may confer antioxidant properties. In the brain, fluctuation of inositols in extracellular and intracellular compartments regulates neuronal and glial activity. Myo-inositol imbalance is observed in psychiatric diseases and its use shows efficacy for treatment of depression, anxiety, and compulsive disorders. Epi- and scyllo-inositol isomers are capable of stabilizing non-toxic forms of β-amyloid proteins, which are characteristic of Alzheimer’s disease and cognitive dementia in Down’s syndrome, both associated with brain insulin resistance. However, uncertainties of the intrinsic mechanisms of inositols regarding their biology are still unsolved. This work presents a critical review of inositol actions on insulin signaling, oxidative stress, and endothelial dysfunction, and its potential for either preventing or delaying cognitive impairment in aging and neurodegenerative diseases. The biomedical uses of inositols may represent a paradigm in the industrial approach perspective, which has generated growing interest for two decades, accompanied by clinical trials for Alzheimer’s disease.https://www.mdpi.com/2227-9059/8/9/295Alzheimer’s diseasepsychiatric diseasedepressionanxietyDown’s syndromeinositol
spellingShingle Antonio J. López-Gambero
Carlos Sanjuan
Pedro Jesús Serrano-Castro
Juan Suárez
Fernando Rodríguez de Fonseca
The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
Biomedicines
Alzheimer’s disease
psychiatric disease
depression
anxiety
Down’s syndrome
inositol
title The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
title_full The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
title_fullStr The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
title_full_unstemmed The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
title_short The Biomedical Uses of Inositols: A Nutraceutical Approach to Metabolic Dysfunction in Aging and Neurodegenerative Diseases
title_sort biomedical uses of inositols a nutraceutical approach to metabolic dysfunction in aging and neurodegenerative diseases
topic Alzheimer’s disease
psychiatric disease
depression
anxiety
Down’s syndrome
inositol
url https://www.mdpi.com/2227-9059/8/9/295
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