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Ma L, Tao Q, Dang J, Sun J, Niu X, Zhang M, Kang Y, Wang W, Cheng J, Han S, Zhang Y. Altered local intrinsic neural activity and molecular architecture in internet use disorders. Brain Res Bull 2024; 216:111052. [PMID: 39173776 DOI: 10.1016/j.brainresbull.2024.111052] [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: 05/08/2024] [Revised: 07/20/2024] [Accepted: 08/17/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND Internet gaming disorder (IGD) is mainly characterized by its core dysfunction in higher-order brain cortices involved in inhibitory control, whose neurobiological basis remains unclear. Then, we will investigate local intrinsic neural activity (INA) alterations in IGD, ascertain whether these potential alterations are related to clinical characteristics, and further explore the underlying molecular architecture. METHOD In this study, we performed the fractional amplitude of low-frequency fluctuation (fALFF) and regional homogeneity (ReHo) derived from resting-state functional magnetic resonance imaging (rs-fMRI) to explore the impact of IGD on local INA. Correlation analysis revealed the relationship between ReHo and fALFF in terms of group differences and clinical characteristics. Moreover, correlations between fALFF, ReHo, and PET- and SPECT-driven maps were investigated to elucidate the specific molecular architecture alternations in IGD. Finally, receiver operating characteristic curve (ROC) analysis was used to show the potential abilities of fALFF and ReHo in distinguishing individuals with IGD (IGDs) from healthy controls (HCs). RESULT Compared with HCs, IGDs revealed increased ReHo and fALFF in the prefrontal cortex. Significantly decreased ReHo was observed in the temporal lobe, occipital lobe, and cerebellum. In addition, the ReHo values in the cerebellum_7b_R were positively correlated with internet addiction severity. ROC curve analysis showed that ReHo and fALFF-altered brain regions could effectively distinguish IGDs from HCs. More importantly, cross-modal correlations revealed local INA changes in brain regions associated with the monoamine neurotransmitter system and the less studied cholinergic/GABAergic system. CONCLUSION These results suggest that local functional impairments are shown in the audiovisual and inhibitory control circuits in IGDs. This may be associated with underlying neurotransmitter system alterations. Therefore, this study provides the possibility of GABAergic receptor agonists and cholinergic receptor inhibitors for the treatment of IGD.
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Affiliation(s)
- Longyao Ma
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Qiuying Tao
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Jinghan Dang
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Jieping Sun
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Xiaoyu Niu
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Mengzhe Zhang
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Yimeng Kang
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Weijian Wang
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Jingliang Cheng
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Shaoqiang Han
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging
| | - Yong Zhang
- Department of Magnetic Resonance Imaging, the First Affiliated Hospital of Zhengzhou University; Zhengzhou Key Laboratory of brain function and cognitive magnetic resonance imaging.
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Rył A, Tomska N, Jakubowska A, Ogrodniczak A, Palma J, Rotter I. Genetic Aspects of Problematic and Risky Internet Use in Young Men-Analysis of ANKK1, DRD2 and NTRK3 Gene Polymorphism. Genes (Basel) 2024; 15:169. [PMID: 38397159 PMCID: PMC10887871 DOI: 10.3390/genes15020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Internet addiction disorder (IAD) is characterized by an excess of uncontrolled preoccupations, urges, or behaviors related to computer use and Internet access that culminate in negative outcomes or individual distress. PIU includes excessive online activities (such as video gaming, social media use, streaming, pornography viewing, and shopping). The aim of this study was to analyze the association of gene polymorphisms that may influence the severity of risky behaviors in young men with the frequency of Internet use. We speculate that there are individual differences in the mechanisms of Internet addiction and that gene-hormone associations may represent useful biomarkers for subgroups of individuals. MATERIALS AND METHODS The study was conducted in a sample of 407 adult males. Subjects were asked to complete the Problematic Internet Use Test (PIUT). Serum was analyzed to determine concentrations of luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone (TT), sex hormone binding protein (SHBG), dehydroepiandrosterone sulfate (DHEA-S), estradiol (E2), prolactin (PRL), insulin (I), serotonin (5-HT), and dopamine (DA), as well as DRD2, ANKK1, and NTRK3 gene polymorphisms. RESULTS In the analysis of the ANKK1 gene, there was a specific association between ANKK1 polymorphisms and PRL and 5-HT blood concentrations. There was also an association between the ANKK1 polymorphisms and LH and DA concentrations. When analyzing the DRD2 gene polymorphism, we found that in the group with a moderate level of Internet dependence, there was an association between both the G/GG and GG/GG polymorphisms and FSH concentration. CONCLUSIONS Our study found that there may be an association between the NTRK3 gene polymorphism and PIU. The polymorphisms of ANKK1 and DRD2 genes may be factors that influence the concentrations of hormones (PRL, 5-HT, DA) that are associated with the results obtained in PIU.
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Affiliation(s)
- Aleksandra Rył
- Department of Medical Rehabilitation and Clinical Physiotherapy, Pomeranian Medical University, 71-210 Szczecin, Poland; (N.T.); (I.R.)
| | - Natalia Tomska
- Department of Medical Rehabilitation and Clinical Physiotherapy, Pomeranian Medical University, 71-210 Szczecin, Poland; (N.T.); (I.R.)
| | - Anna Jakubowska
- Department of Genetics and Pathology, Pomeranian Medical University, 71-252 Szczecin, Poland; (A.J.); (A.O.)
- Independent Laboratory of Molecular Biology and Genetic Diagnostics, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Alicja Ogrodniczak
- Department of Genetics and Pathology, Pomeranian Medical University, 71-252 Szczecin, Poland; (A.J.); (A.O.)
| | - Joanna Palma
- Department of Biochemical Science, Pomeranian Medical University, 71-460 Szczecin, Poland;
| | - Iwona Rotter
- Department of Medical Rehabilitation and Clinical Physiotherapy, Pomeranian Medical University, 71-210 Szczecin, Poland; (N.T.); (I.R.)
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Tereshchenko SY. Neurobiological risk factors for problematic social media use as a specific form of Internet addiction: A narrative review. World J Psychiatry 2023; 13:160-173. [PMID: 37303928 PMCID: PMC10251362 DOI: 10.5498/wjp.v13.i5.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/13/2023] [Accepted: 04/07/2023] [Indexed: 05/19/2023] Open
Abstract
Problematic social media use (PSMU) is a behavioral addiction, a specific form of problematic Internet use associated with the uncontrolled use of social networks. It is typical mostly for modern adolescents and young adults, which are the first generations fully grown up in the era of total digitalization of society. The modern biopsychosocial model of the formation of behavioral addictions, postulating the impact of a large number of biological, psychological, and social factors on addictive behavior formation, may be quite applicable to PSMU. In this narrative review, we discussed neurobiological risk factors for Internet addiction with a focus on current evidence on the association between PSMU and structural/ functional characteristics of the brain and autonomic nervous system, neurochemical correlations, and genetic features. A review of the literature shows that the vast majority of the mentioned neurobiological studies were focused on computer games addiction and generalized Internet addiction (without taking into account the consumed content). Even though a certain number of neuroimaging studies have been conducted for PSMU, there is practically no research on neuropeptide and genetic associations for PSMU to date. This fact points to the extremely high relevance of such studies.
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Affiliation(s)
- Sergey Yu Tereshchenko
- Department of Child's Physical and Mental Health, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, Research Institute of Medical Problems of the North, Krasnoyarsk 660022, Russia
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Király O, Koncz P, Griffiths MD, Demetrovics Z. Gaming disorder: A summary of its characteristics and aetiology. Compr Psychiatry 2023; 122:152376. [PMID: 36764098 DOI: 10.1016/j.comppsych.2023.152376] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
The emergence, development, and maintenance of gaming disorder (GD) is the result of an interplay between gaming-related factors, individual factors, and environmental factors. None of these alone are sufficient to cause a disordered state, but it is the interactive co-occurrence of all these factors, which in some cases leads to GD. The goal of the present paper is to discuss in detail these three factors based on relevant and recent findings of the literature. Among gaming-related factors, we discuss online vs. offline videogames, the role of game genres, structural characteristics, game design elements, as well as some important monetization techniques. Among individual factors demographic risk factors, personality traits, motivational factors, comorbid psychopathology, genetic predisposition, and neurobiological processes are considered. Finally, among environmental factors we discuss family factors, early life experiences, the role of peers and school-related factors, as well as the broader context of culture including the popularity of esports.
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Affiliation(s)
- Orsolya Király
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary.
| | - Patrik Koncz
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary; Doctoral School of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Mark D Griffiths
- International Gaming Research Unit, Psychology Department, Nottingham Trent University, Nottingham, United Kingdom
| | - Zsolt Demetrovics
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary; Centre of Excellence in Responsible Gaming at the University of Gibraltar, Gibraltar
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A review of the genetic basis of problematic Internet use. Curr Opin Behav Sci 2022. [DOI: 10.1016/j.cobeha.2022.101149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Muderrisoglu A, Babaoglu E, Korkmaz ET, Kalkisim S, Karabulut E, Emri S, Babaoglu MO. Comparative Assessment of Outcomes in Drug Treatment for Smoking Cessation and Role of Genetic Polymorphisms of Human Nicotinic Acetylcholine Receptor Subunits. Front Genet 2022; 13:812715. [PMID: 35222535 PMCID: PMC8866864 DOI: 10.3389/fgene.2022.812715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: To investigate the effects of genetic polymorphisms of human nicotinic acetylcholine receptor subunits α3, α4 and α5, which are encoded by CHRNA3, CHRNA4 CHRNA5 genes, respectively, on nicotine addiction and outcomes of pharmacological treatments for smoking cessation.Methods: A total of 143 smokers and 130 non-smokers were included. Genotyping for CHRNA3 rs578776, CHRNA4 rs1044396-rs1044397, CNRNA5 rs16969968 polymorphisms was performed by PCR, flowed by RFLP. Clinical outcomes and success rates of pharmacological treatments for smoking cessation with nicotine replacement therapy (NRT), bupropion or varenicline were determined at the 12th week of the treatment.Results: Overall, 52 out of 143 (36.4%) smokers who received pharmacotherapy were able to quit smoking. Success rates for smoking cessation were similar for female (30.3%) and male (41.6%) subjects (p = 0.16). The success rate for smoking cessation treatment with varenicline (58.5%) was significantly higher as compared to other treatments with NRT (20.0%), bupropion (32.3%) or bupropion + NRT (40.0%) (chi-square test, p = 0.001). Smoker vs. non-smoker status and the clinical outcomes of drugs used for smoking cessation were found similar in subjects carrying wild-type and variant alleles of human nicotinic acetylcholine receptor α subunits.Conclusion: In this study, smoking cessation treatment with varenicline was significantly more effective than treatments with nicotine replacement or bupropion in a cohort of Turkish subjects. Smoker/non-smoker status and the clinical outcomes of treatment with pharmacological agents were similar in subjects with wild-type or variant alleles for human nicotinic acetylcholine receptor subunits α3 (CHRNA3), α4 (CHRNA4) and α5 (CHRNA5).
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Affiliation(s)
- Ahmet Muderrisoglu
- Department of Pharmacology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- *Correspondence: Ahmet Muderrisoglu, , orcid.org/0000-0003-2954-360X
| | - Elif Babaoglu
- Department of Chest Diseases, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Elif Tugce Korkmaz
- Department of Chest Diseases, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Said Kalkisim
- Department of Pharmacology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Erdem Karabulut
- Department of Biostatistics, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Salih Emri
- Department of Chest Diseases, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Melih O. Babaoglu
- Department of Pharmacology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Carpita B, Muti D, Nardi B, Benedetti F, Cappelli A, Cremone IM, Carmassi C, Dell’Osso L. Biochemical Correlates of Video Game Use: From Physiology to Pathology. A Narrative Review. Life (Basel) 2021; 11:775. [PMID: 34440519 PMCID: PMC8401252 DOI: 10.3390/life11080775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/24/2021] [Accepted: 07/28/2021] [Indexed: 12/14/2022] Open
Abstract
In the last few decades, video game playing progressively became a widespread activity for many people, in childhood as well in adulthood. An increasing amount of literature has focused on pathological and non-pathological correlates of video game playing, with specific attention towards Internet Gaming Disorder (IGD). While many neurobiological studies in this field were based on neuroimaging, highlighting structural and functional brain changes among video game users, only a limited number of studies investigated the presence of biochemical correlates of video gaming. The present work aims to summarize and review the available literature about biochemical changes linked to video game use in IGD patients as well as non-pathological users, and the differences in between. Results may shed light on risks and benefits of video games, providing directions for further research on IGD treatment and, on other hand, on the potential role of video games in therapeutic or preventive protocols for specific conditions.
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Affiliation(s)
- Barbara Carpita
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (B.N.); (F.B.); (A.C.); (I.M.C.); (C.C.); (L.D.)
| | - Dario Muti
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy; (B.N.); (F.B.); (A.C.); (I.M.C.); (C.C.); (L.D.)
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Roles of Hostility and Depression in the Association between the MAOA Gene Polymorphism and Internet Gaming Disorder. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18136910. [PMID: 34199135 PMCID: PMC8297287 DOI: 10.3390/ijerph18136910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
The metabolism of bioamine in the central nervous system contributes to the development of addiction. We examined the roles of hostility and depression in the association between internet gaming disorder (IGD) and monoamine oxidase-A (MAOA) EcoRV polymorphism (rs1137070). A total of 69 adults with IGD and 138 without IGD were recruited through diagnostic interviewing. We evaluated participants for rs1137070, depression, and hostility. The participants with the TT genotype of rs1137070 had a higher odds ratio of 2.52 (1.37–4.64) for IGD compared with the C carriers. Expressive hostility behavior and hostility cognition mediated the association between rs1137070 and IGD. Indicating lower MAOA activity, the TT genotype predicted IGD and higher expressive hostility behavior and hostility cognition. Expressive hostility behavior and hostility cognition may underline the association between rs1137070 and IGD. Assessment of and intervention for hostility behavior and cognition should be provided to attenuate the risk of IGD, particularly in those with the TT genotype. Further brain imaging or neurobiological studies are required to elucidate the possible mechanism underlying the association between MAOA activity and IGD.
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Nogueira WG, Jaiswal AK, Tiwari S, Ramos RTJ, Ghosh P, Barh D, Azevedo V, Soares SC. Computational identification of putative common genomic drug and vaccine targets in Mycoplasma genitalium. Genomics 2021; 113:2730-2743. [PMID: 34118385 DOI: 10.1016/j.ygeno.2021.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/17/2021] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
Mycoplasma genitalium is an obligate intracellular bacterium that is responsible for several sexually transmitted infections, including non-gonococcal urethritis in men and several inflammatory reproductive tract syndromes in women. Here, we applied subtractive genomics and reverse vaccinology approaches for in silico prediction of potential vaccine and drug targets against five strains of M. genitalium. We identified 403 genes shared by all five strains, from which 104 non-host homologous proteins were selected, comprising of 44 exposed/secreted/membrane proteins and 60 cytoplasmic proteins. Based on the essentiality, functionality, and structure-based binding affinity, we finally predicted 19 (14 novel) putative vaccine and 7 (2 novel) candidate drug targets. The docking analysis showed six molecules from the ZINC database as promising drug candidates against the identified targets. Altogether, both vaccine candidates and drug targets identified here may contribute to the future development of therapeutic strategies to control the spread of M. genitalium worldwide.
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Affiliation(s)
- Wylerson G Nogueira
- Laboratório de Genética Celular e Molecular, Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas,Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Arun Kumar Jaiswal
- Laboratório de Genética Celular e Molecular, Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas,Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.; Department of Immunology, Microbiology and Parasitology, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Sandeep Tiwari
- Laboratório de Genética Celular e Molecular, Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas,Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil..
| | - Rommel T J Ramos
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Preetam Ghosh
- Department of Computer Science, Virginia Commonwealth University, Richmond VA-23284, USA
| | - Debmalya Barh
- Centre for Genomics and Applied Gene Technology, Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, Purba Medinipur, West Bengal, India
| | - Vasco Azevedo
- Laboratório de Genética Celular e Molecular, Departamento de Genetica, Ecologia e Evolucao, Instituto de Ciências Biológicas,Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Siomar C Soares
- Department of Immunology, Microbiology and Parasitology, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil.
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Geisel O, Lipinski A, Kaess M. Non-Substance Addiction in Childhood and Adolescence. DEUTSCHES ARZTEBLATT INTERNATIONAL 2021; 118:14-22. [PMID: 33750533 DOI: 10.3238/arztebl.m2021.0002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/04/2020] [Accepted: 09/14/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Around 5.8% of adolescents and 2.8% of young adults have an Internet-related disorder. These figures underline the widespread concerns in our society regarding the potential dangers and risks associated with Internet and digital media use. METHODS Selective literature search for records on Internet-related disorders in children and adolescents. RESULTS Internet-related disorders are now viewed as belonging to the behavioral addiction. Research has revealed similarities to substance-related disorders. There are often associations with other mental illnesses such as depression, anxiety, attention deficit/hyperactivity disorder, and personality disorders, as well as disturbed sleep patterns, increased risk taking, nicotine abuse, an unbalanced diet, and lack of exercise. Female adolescents are statistically significantly more often affected than male adolescents (7.1% versus 4.5%). The German STICA study, the first randomized controlled trial worldwide, demonstrated that cognitive behavioral therapy was effective compared with a waiting group (odds ratio 10.10, 95% confidence interval [3.69; 27.65]). CONCLUSION Internet-related disorders have not yet been conclusively conceptualized and operationalized. Further work is urgently required to refine the concepts of both the illness and and its treatment.
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Affiliation(s)
- Olga Geisel
- ADHD, Mobbing, and Addiction Research Section, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Charité-University Medical Center Berlin; University Hospital of Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Switzerland; Section for Translational Psycho -biology in Child and Adolescent Psychiatry, Department of Child and Adolescent Psychiatry, Center for Psycho -social Medicine, University Hospital Heidelberg
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Abstract
Obsessive compulsive disorder (OCD) and several other obsessive-compulsive related disorders (OCRDs) including hoarding disorder, body dysmorphic disorder (BDD), skin picking disorder, trichotillomania and the newly arising public health conditions of online gaming and gambling disorders, under the umbrella of Problematic Usage of the Internet (PUI), not only share some common phenotypes, but there is evidence to suggest share some genetic risk factors. The simple fact that these disorders segregate within families points to this notion. However, the current data are still scarce. This chapter focuses on identifying the shared genetic factors. To address this question, a systematic review of the literature investigating genetic findings in OCD and OCRDs including PUI was conducted, with a focus on their genetic similarities. Greater knowledge of the specific genetic risks shared among OCRDs would be expected to open new avenues in the understanding of the biological mechanisms causing the development of these phenotypes, as well as provide opportunities to develop new animal and cellular models testing new therapy avenues.
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Affiliation(s)
- Edna Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric University Hospital Zurich, University of Zurich, Zurich, Switzerland.
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland.
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.
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Sindermann C, Sariyska R, Elhai JD, Montag C. Molecular genetics of neurotransmitters and neuropeptides involved in Internet use disorders including first insights on a potential role of hypothalamus' oxytocin hormone. HANDBOOK OF CLINICAL NEUROLOGY 2021; 182:389-400. [PMID: 34266607 DOI: 10.1016/b978-0-12-819973-2.00026-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This chapter covers the phenomenon of Internet use disorders (IUDs) and putative associations with different neurotransmitter and neuropeptide systems. Genes coding for such messengers can be seen as an important starting point in the complicated quest to understand human behavior including new phenomena such as IUDs. Therefore, a special focus of this chapter will lie on individual differences in molecular genetic underpinnings of neurotransmitter and neuropeptide systems and their associations with individual differences in tendencies towards IUDs. By shedding light on these associations, putative predisposing molecular genetic factors for the emergence and maintenance of IUDs can be carved out. Therefore, first an introduction to IUDs and a model that can guide research on putative associations of IUDs with different specific neurotransmitters and neuropeptides will be presented. Subsequently, twin studies on the heritability of IUDs are reviewed. Finally, studies on differences in molecular genetic predispositions and their associations with differences in IUDs will be presented and discussed, including targets related to the dopaminergic and serotonergic system as well as the hypothalamic neuropeptide oxytocin. The chapter closes with a conclusion about what is already known and what needs to be investigated in future studies to gain further insights into putative associations between molecular genetic markers and IUDs.
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Affiliation(s)
| | - Rayna Sariyska
- Department of Molecular Psychology, Ulm University, Ulm, Germany
| | - Jon D Elhai
- Departments of Psychology and of Psychiatry, University of Toledo, Toledo, OH, United States
| | - Christian Montag
- Department of Molecular Psychology, Ulm University, Ulm, Germany
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Abstract
PURPOSE OF REVIEW The goal was to review recent (1/2015-2/2020) evidence of impulsivity as a feature of substance use disorders or use of substances (alcohol, cannabis, nicotine, opioids, stimulants) in males compared to females in terms of: a) impulsivity in substance-using groups (or substance-using compared to control groups), and b) relationship between impulsivity and substance use behavior, clinical severity, or treatment outcomes. RECENT FINDINGS Of 361 papers identified by the searches, 69 met inclusion criteria, and 39 were highlighted for considering sex/gender in relation to impulsivity in substance-using populations. Taken together, findings supported higher impulsivity in males and females who use substances, relative to controls; and higher impulsivity was linked with more substance use/severity in both sex/genders. There were mixed findings regarding male versus female differences in impulsivity among individuals who use substances, or in the magnitude of the relationship between impulsivity and substance use severity. SUMMARY The current body of evidence does not point to a consistent sex/gender difference in the role of impulsivity within and across substance use disorders. Impulsivity is a clinically-relevant construct for male and female individuals who use substances, across a range of substances.
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Abstract
OBJECTIVE Problematic internet users suffer from impairment in a variety of cognitive domains. Research suggests that COMT haplotypes exert differential effects on cognition. We sought to investigate differences in the genetic profiles of problematic internet users and whether those could shed light on potential cognitive differences. METHODS We recruited 206 non-treatment seeking participants with heightened impulsive traits and obtained cross-sectional demographic, clinical, and cognitive data as well as the genetic haplotypes of COMT rs4680 and rs4818. We identified 24 participants who presented with problematic internet use (PIU) and compared PIU and non-PIU participants using one-way analysis of variance (ANOVA) and chi square as appropriate. RESULTS PIU was associated with worse performance on decision making, rapid visual processing, and spatial working memory tasks. Genetic variants were associated with altered cognitive performance, but rates of PIU did not statistically differ for particular haplotypes of COMT. CONCLUSION This study indicates that PIU is characterized by deficits in decision making and working memory domains; it also provides evidence for elevated impulsive responses and impaired target detection on a sustained attention task, which is a novel area worth exploring further in future work. The effects observed in the genetic influences on cognition of PIU subjects imply that the genetic heritable components of PIU may not lie within the genetic loci influencing COMT function and cognitive performance; or that the genetic component in PIU involves many genetic polymorphisms each conferring only a small effect.
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Brand M, Rumpf HJ, King DL, Potenza MN, Wegmann E. Clarifying terminologies in research on gaming disorder and other addictive behaviors: distinctions between core symptoms and underlying psychological processes. Curr Opin Psychol 2020; 36:49-54. [PMID: 32480020 DOI: 10.1016/j.copsyc.2020.04.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 02/08/2023]
Abstract
There exists ongoing debate regarding the clinical validity of single symptoms of and diagnostic criteria for gaming disorder. In particular, the potential symptom of gaming disorder that addresses coping with and escaping from negative feelings has received much attention and remains a focus of intensive discussion. We argue that it is important to consider differences or distinguish between, on the one hand, symptoms of and criteria for a disorder due to addictive behaviors, such as gaming disorder, versus, on the other hand, motivations, mechanisms, and psychological processes that may be involved in promoting addictive behaviors and that may explain symptom severity and course of the addictive disorder including potential treatment responses.
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Affiliation(s)
- Matthias Brand
- General Psychology: Cognition and Center for Behavioral Addiction Research (CeBAR), University of Duisburg-Essen, Germany; Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Germany.
| | - Hans-Jürgen Rumpf
- University of Lübeck, Department of Psychiatry and Psychotherapy, Research Group S:TEP (Substance Use and Related Disorders: Treatment, Epidemiology, and Prevention), Germany
| | - Daniel L King
- College of Education, Psychology, & Social Work, Flinders University, Australia
| | - Marc N Potenza
- Departments of Psychiatry, Neuroscience and Child Study, Yale University School of Medicine, New Haven, USA; Connecticut Council on Problem Gambling, Wethersfield, USA; Connecticut Mental Health Center, New Haven, USA
| | - Elisa Wegmann
- General Psychology: Cognition and Center for Behavioral Addiction Research (CeBAR), University of Duisburg-Essen, Germany
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Tereshchenko S, Kasparov E. Neurobiological Risk Factors for the Development of Internet Addiction in Adolescents. Behav Sci (Basel) 2019; 9:bs9060062. [PMID: 31207886 PMCID: PMC6616486 DOI: 10.3390/bs9060062] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/28/2019] [Accepted: 05/31/2019] [Indexed: 02/06/2023] Open
Abstract
The sudden appearance and spread of Internet addiction in adolescent populations, in association with the rapid escalation of consumed Internet content and the broad availability of smartphones and tablets with Internet access, is posing a new challenge for classical addictology which requires urgent solutions. Like the majority of other psychopathological conditions, pathological Internet addiction depends upon a group of multifactor polygenic conditions. For each specific case, there is a unique combination of inherited characteristics (nervous tissue structure, secretion, degradation, and reception of neuromediators), and many are extra-environment factors (family-related, social, and ethnic-cultural). One of the main challenges in the development of the bio-psychosocial model of Internet addiction is to determine which genes and neuromediators are responsible for increased addiction susceptibility. This information will herald the start of a search for new therapeutic targets and the development of early prevention strategies, including the assessment of genetic risk levels. This review summarizes the literature and currently available knowledge related to neurobiological risk factors regarding Internet addiction in adolescents. Genetic, neurochemical and neuroimaging data are presented with links to actual pathogenetic hypotheses according to the bio-psychosocial model of IA forming.
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Affiliation(s)
- Sergey Tereshchenko
- Research Institute of Medical Problems of the North, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Krasnoyarsk 660022, Russia.
| | - Edward Kasparov
- Research Institute of Medical Problems of the North, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Krasnoyarsk 660022, Russia.
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17
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D'Souza MS. Brain and Cognition for Addiction Medicine: From Prevention to Recovery Neural Substrates for Treatment of Psychostimulant-Induced Cognitive Deficits. Front Psychiatry 2019; 10:509. [PMID: 31396113 PMCID: PMC6667748 DOI: 10.3389/fpsyt.2019.00509] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 06/28/2019] [Indexed: 01/10/2023] Open
Abstract
Addiction to psychostimulants like cocaine, methamphetamine, and nicotine poses a continuing medical and social challenge both in the United States and all over the world. Despite a desire to quit drug use, return to drug use after a period of abstinence is a common problem among individuals dependent on psychostimulants. Recovery for psychostimulant drug-dependent individuals is particularly challenging because psychostimulant drugs induce significant changes in brain regions associated with cognitive functions leading to cognitive deficits. These cognitive deficits include impairments in learning/memory, poor decision making, and impaired control of behavioral output. Importantly, these drug-induced cognitive deficits often impact adherence to addiction treatment programs and predispose abstinent addicts to drug use relapse. Additionally, these cognitive deficits impact effective social and professional rehabilitation of abstinent addicts. The goal of this paper is to review neural substrates based on animal studies that could be pharmacologically targeted to reverse psychostimulant-induced cognitive deficits such as impulsivity and impairment in learning and memory. Further, the review will discuss neural substrates that could be used to facilitate extinction learning and thus reduce emotional and behavioral responses to drug-associated cues. Moreover, the review will discuss some non-pharmacological approaches that could be used either alone or in combination with pharmacological compounds to treat the above-mentioned cognitive deficits. Psychostimulant addiction treatment, which includes treatment for cognitive deficits, will help promote abstinence and allow for better rehabilitation and integration of abstinent individuals into society.
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Affiliation(s)
- Manoranjan S D'Souza
- Department of Pharmaceutical and Biomedical Sciences, The Raabe College of Pharmacy, Ohio Northern University, Ada, OH, United States
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18
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Fineberg NA, Demetrovics Z, Stein DJ, Ioannidis K, Potenza MN, Grünblatt E, Brand M, Billieux J, Carmi L, King DL, Grant JE, Yücel M, Dell'Osso B, Rumpf HJ, Hall N, Hollander E, Goudriaan A, Menchon J, Zohar J, Burkauskas J, Martinotti G, Van Ameringen M, Corazza O, Pallanti S, Chamberlain SR. Manifesto for a European research network into Problematic Usage of the Internet. Eur Neuropsychopharmacol 2018; 28:1232-1246. [PMID: 30509450 PMCID: PMC6276981 DOI: 10.1016/j.euroneuro.2018.08.004] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/18/2018] [Accepted: 08/07/2018] [Indexed: 12/24/2022]
Abstract
The Internet is now all-pervasive across much of the globe. While it has positive uses (e.g. prompt access to information, rapid news dissemination), many individuals develop Problematic Use of the Internet (PUI), an umbrella term incorporating a range of repetitive impairing behaviours. The Internet can act as a conduit for, and may contribute to, functionally impairing behaviours including excessive and compulsive video gaming, compulsive sexual behaviour, buying, gambling, streaming or social networks use. There is growing public and National health authority concern about the health and societal costs of PUI across the lifespan. Gaming Disorder is being considered for inclusion as a mental disorder in diagnostic classification systems, and was listed in the ICD-11 version released for consideration by Member States (http://www.who.int/classifications/icd/revision/timeline/en/). More research is needed into disorder definitions, validation of clinical tools, prevalence, clinical parameters, brain-based biology, socio-health-economic impact, and empirically validated intervention and policy approaches. Potential cultural differences in the magnitudes and natures of types and patterns of PUI need to be better understood, to inform optimal health policy and service development. To this end, the EU under Horizon 2020 has launched a new four-year European Cooperation in Science and Technology (COST) Action Programme (CA 16207), bringing together scientists and clinicians from across the fields of impulsive, compulsive, and addictive disorders, to advance networked interdisciplinary research into PUI across Europe and beyond, ultimately seeking to inform regulatory policies and clinical practice. This paper describes nine critical and achievable research priorities identified by the Network, needed in order to advance understanding of PUI, with a view towards identifying vulnerable individuals for early intervention. The network shall enable collaborative research networks, shared multinational databases, multicentre studies and joint publications.
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Affiliation(s)
- N A Fineberg
- Hertfordshire Partnership University NHS Foundation Trust, Rosanne House, Welwyn Garden City, Hertfordshire AL8 6HG, UK; Center for Clinical & Health Research Services, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK; School of Clinical Medicine, University of Cambridge, Cambridge, UK.
| | - Z Demetrovics
- Institute of Psychology, ELTE Eötvös Loránd University, Budapest, Hungary
| | - D J Stein
- Department of Psychiatry and Mental Health at the University of Cape Town and South African MRC Unit on Risk & Resilience in Mental Disorders, Cape Town, South Africa
| | - K Ioannidis
- Department of Psychiatry, University of Cambridge, Cambridge, UK; Cambridge & Peterborough NHS Foundation Trust, Cambridge, UK
| | - M N Potenza
- Connecticut Mental Health Center and Departments of Psychiatry, Neuroscience and Child Study Center, Yale School of Medicine, New Haven, USA; Connecticut Council on Problem Gambling, Wethersfield, CT, USA
| | - E Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric University Hospital Zurich, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - M Brand
- General Psychology: Cognition and Center for Behavioral Addiction Research (CeBAR), Department of Computer Science and Applied Cognitive Science Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany; Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Germany
| | - J Billieux
- Addictive and Compulsive Behaviours Lab, Institute for Health and Behaviour, University of Luxembourg, Esch-sur-Alzette, Luxembourg; Addiction Division, Department of Mental Health and Psychiatry, University Hospitals of Geneva, Switzerland; Centre for Excessive Gambling, Lausanne University Hospitals (CHUV), Lausanne, Switzerland
| | - L Carmi
- School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel
| | - D L King
- School of Psychology, University of Adelaide, Adelaide, Australia
| | - J E Grant
- Department of Psychiatry, University of Chicago, Chicago, USA
| | - M Yücel
- Monash Institute of Cognitive and Clinical Neurosciences, School of Psychological Sciences, Monash University, Melbourne, Australia
| | - B Dell'Osso
- Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Ca' Granda and CRC "Aldo Ravelli" for neurotechnology and experimental brain therapeutics, Milan, Italy; Department of Psychiatry, University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA; CRC "Aldo Ravelli" for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Milan, Italy
| | - H J Rumpf
- University of Lübeck, Department of Psychiatry and Psychotherapy, Centre for Integrative Psychiatry, Lübeck, Germany
| | - N Hall
- Center for Clinical & Health Research Services, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | - E Hollander
- Department of Psychiatry and Compulsive, Impulsive and Autism Spectrum Program, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY, USA
| | - A Goudriaan
- Department of Psychiatry, Academisch Medisch Centrum (AMC), University of Amsterdam, Amsterdam, Netherlands; Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam Institute for Addiction Research, Meibergdreef 9, Amsterdam, Netherlands; Arkin, Amsterdam, The Netherlands
| | - J Menchon
- Department of Psychiatry, Bellvitge University, Hospital-IDIBELL, University of Barcelona, Cibersam, Barcelona, Spain
| | - J Zohar
- Sackler Medical School, Tel Aviv University, and Chaim Sheba Medical Center Tel Hashomer, Tel Aviv, Israel
| | - J Burkauskas
- Laboratory of Behavioral Medicine, Neuroscience Institute, Lithuanian University of Health Sciences, Palanga, Lithuania
| | - G Martinotti
- Department of Neuroscience, Imaging, Clinical Science, University G.d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - M Van Ameringen
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Ontario, Canada
| | - O Corazza
- Center for Clinical & Health Research Services, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | - S Pallanti
- Albert Einstein College of Medicine, New York, USA; University of Florence, Italy
| | - S R Chamberlain
- Department of Psychiatry, University of Cambridge, Cambridge, UK; Cambridge & Peterborough NHS Foundation Trust, Cambridge, UK
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