<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Malnutrition during brain development can cause serious problems that can be irreversible. Dysfunctional patterns of brain activity can be detected with functional MRI. We used BOLD functional Magnetic Resonance Imaging (fMRI) to investigate region differences of brain activity between control and malnourished rats. The food-competition method was applied to a rat model to induce malnutrition during lactation. A 7T magnet was used to detect changes of the BOLD signal associated with changes in brain activity caused by the trigeminal nerve stimulation in malnourished and control rats. Major neuronal activation was observed in malnourished rats in several brain regions, including cerebellum, somatosensory cortex, hippocampus, and hypothalamus. Statistical analysis of the BOLD signals from various brain areas revealed significant differences in somatosensory cortex between the control and experimental groups, as well as a significant difference between the cerebellum and other structures in the experimental group. This study, particularly in malnourished rats, demonstrates increased BOLD activation in the cerebellum.</p></abstract>

Malnutrition during brain development can cause serious problems that can be irreversible. Dysfunctional patterns of brain activity can be detected with functional MRI. We used BOLD functional Magnetic Resonance Imaging (fMRI) to investigate region differences of brain activity between control and malnourished rats. The food-competition method was applied to a rat model to induce malnutrition during lactation. A 7T magnet was used to detect changes of the BOLD signal associated with changes in brain activity caused by the trigeminal nerve stimulation in malnourished and control rats. Major neuronal activation was observed in malnourished rats in several brain regions, including cerebellum, somatosensory cortex, hippocampus, and hypothalamus. Statistical analysis of the BOLD signals from various brain areas revealed significant differences in somatosensory cortex between the control and experimental groups, as well as a significant difference between the cerebellum and other structures in the experimental group. This study, particularly in malnourished rats, demonstrates increased BOLD activation in the cerebellum.

Functional Magnetic Resonance Study of Non-conventional Morphological Brains: malnourished rats

Department of Electrical Engineering, Universidad Autonoma Metropolitana Iztapalapa, Av. San Rafael Atlixco 186, Mexico, DF, 09340, Mexico

Faculty of Science, Universidad Nacional Autonoma de Mexico, Av. Universidad 3000, Circuito Exterior S/N, Ciudad Universitaria, DF, 04510, Mexico

Department of Neuro-Image, Instituto Nacional de Neurologia y Neurocirugia Manuel Velasco Suarez, Insurgentes Sur 3877, Mexico, DF, 14269, Mexico

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Malnutrition during brain development can cause serious problems that can be irreversible. Dysfunctional patterns of brain activity can be detected with...

Functional Magnetic Resonance Study of Non-conventional Morphological Brains: malnourished rats

Publié en ligne: 27 août 2015

Pages: 176 - 183

Reçu: 06 janv. 2015

Accepté: 30 juil. 2015

DOI: https://doi.org/10.1515/msr-2015-0025

© by R. Martin

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.