Article (Scientific journals)
Disrupted resting brain graph measures in individuals at high risk for alcoholism.
Holla, Bharath; Panda, Rajanikant; Venkatasubramanian, Ganesan et al.
2017In Psychiatry Research. Neuroimaging, 265, p. 54 - 64
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Keywords :
Alcoholism vulnerability; Children of alcoholics (CoAs); Externalizing behaviors; Graph theory; rsfMRI; Adolescent; Age Factors; Alcoholism/physiopathology; Brain/physiopathology; Cerebellum/physiopathology; Child; Frontal Lobe/physiopathology; Humans; Male; Nerve Net/physiopathology; Parietal Lobe/physiopathology; Rest/physiology; Risk Factors; Young Adult; Alcoholism; Brain; Cerebellum; Frontal Lobe; Nerve Net; Parietal Lobe; Rest; Neuroscience (miscellaneous); Radiology, Nuclear Medicine and Imaging; Psychiatry and Mental Health
Abstract :
[en] Familial susceptibility to alcoholism is likely to be linked to the externalizing diathesis seen in high-risk offspring from high-density alcohol use disorder (AUD) families. The present study aimed at comparing resting brain functional connectivity and their association with externalizing symptoms and alcoholism familial density in 40 substance-naive high-risk (HR) male offspring from high-density AUD families and 30 matched healthy low-risk (LR) males without a family history of substance dependence using graph theory-based network analysis. The HR subjects from high-density AUD families compared with LR, showed significantly reduced clustering, small-worldness, and local network efficiency. The frontoparietal, cingulo-opercular, sensorimotor and cerebellar networks exhibited significantly reduced functional segregation. These disruptions exhibited independent incremental value in predicting the externalizing symptoms over and above the demographic variables. The reduction of functional segregation in HR subjects was significant across both the younger and older age groups and was proportional to the family loading of AUDs. Detection and estimation of these developmentally relevant disruptions in small-world architecture at critical brain regions sub-serving cognitive, affective, and sensorimotor processes are vital for understanding the familial risk for early onset alcoholism as well as for understanding the pathophysiological mechanism of externalizing behaviors.
Disciplines :
Psychiatry
Author, co-author :
Holla, Bharath;  Centre for Addiction Medicine, Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, India. Electronic address: hollabharath@gmail.com
Panda, Rajanikant  ;  Université de Liège - ULiège > GIGA > GIGA Consciousness - Coma Science Group ; Cognitive Neuroscience Centre and Department of Neuroimaging and Interventional Radiology (NIIR), NIMHANS, Hosur Road, Bangalore, India
Venkatasubramanian, Ganesan;  Translational Psychiatry Laboratory, Department of Psychiatry, NIMHANS, Hosur Road, Bangalore, India
Biswal, Bharat;  Department of Biomedical Engineering, New Jersey Institute of Technology (NJIT), University Heights, Newark, NJ, USA
Bharath, Rose Dawn;  Cognitive Neuroscience Centre and Department of Neuroimaging and Interventional Radiology (NIIR), NIMHANS, Hosur Road, Bangalore, India. Electronic address: drrosedawn@yahoo.com
Benegal, Vivek;  Centre for Addiction Medicine, Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, India. Electronic address: vbenegal@gmail.com
Language :
English
Title :
Disrupted resting brain graph measures in individuals at high risk for alcoholism.
Publication date :
30 July 2017
Journal title :
Psychiatry Research. Neuroimaging
ISSN :
0925-4927
Publisher :
Elsevier Ireland Ltd, Netherlands
Volume :
265
Pages :
54 - 64
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NIMHANS - National Institute of Mental Health and Neurosciences [IN]
Wellcome Trust/DBT India Alliance [IN]
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since 16 January 2023

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