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https://www.readbyqxmd.com/read/28225502/associations-between-prospective-symptom-changes-and-slow-wave-activity-in-patients-with-internet-gaming-disorder-a-resting-state-eeg-study
#1
Yeon Jin Kim, Jun-Young Lee, Sohee Oh, Minkyung Park, Hee Yeon Jung, Bo Kyung Sohn, Sam-Wook Choi, Dai Jin Kim, Jung-Seok Choi
The identification of the predictive factors and biological markers associated with treatment-related changes in the symptoms of Internet gaming disorder (IGD) may provide a better understanding of the pathophysiology underlying this condition. Thus, the present study aimed to identify neurophysiological markers associated with symptom changes in IGD patients and to identify factors that may predict symptom improvements following outpatient treatment with pharmacotherapy. The present study included 20 IGD patients (mean age: 22...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28223410/microbiome-dependent-recombination-shapes-the-host-antibody-repertoire
#2
Alexandra A Mushegian
Secreted IgD concentration depends on the presence of microbiota.
February 21, 2017: Science Signaling
https://www.readbyqxmd.com/read/28222180/pre-existing-neutralizing-antibody-mitigates-b-cell-dysregulation-and-enhances-the-env-specific-antibody-response-in-shiv-infected-rhesus-macaques
#3
Juan Pablo Jaworski, Peter Bryk, Zachary Brower, Bo Zheng, Ann J Hessell, Alexander F Rosenberg, Tong Tong Wu, Ignacio Sanz, Michael C Keefer, Nancy L Haigwood, James J Kobie
Our central hypothesis is that protection against HIV infection will be powerfully influenced by the magnitude and quality of the B cell response. Although sterilizing immunity, mediated by pre-formed abundant and potent antibodies is the ultimate goal for B cell-targeted HIV vaccine strategies, scenarios that fall short of this may still confer beneficial defenses against viremia and disease progression. We evaluated the impact of sub-sterilizing pre-existing neutralizing antibody on the B cell response to SHIV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28197808/age-related-alterations-of-the-cd19-complex-and-memory-b-cells-in-children-with-down-syndrome
#4
Ayse Nazli Seckin, Hulya Ozdemir, Ayca Ceylan, Hasibe Artac
Children with Down syndrome (DS) have a high incidence of recurrent respiratory tract infections, leukaemia and autoimmune disorders, suggesting immune dysfunction. The present study evaluated the role of the CD19 complex and memory B cells in the pathogenesis of immunodeficiency in children with DS. The expression levels (median fluorescein intensity-MFI) of CD19, CD21 and CD81 molecules on the surface of B cells and memory B cell subsets were studied in 37 patients and 39 healthy controls. Twenty-nine of the DS group had congenital cardiac disease...
February 14, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/28193454/new-developments-in-brain-research-of-internet-and-gaming-disorder
#5
REVIEW
Aviv Weinstein, Abigail Livny, Abraham Weizman
There is evidence that the neural mechanisms underlying Internet Gaming Disorder (IGD) resemble those of drug addiction. Functional Magnetic Resonance Imaging (fMRI) studies of the resting state and measures of gray matter volume have shown that Internet game playing was associated with changes to brain regions responsible for attention and control, impulse control, motor function, emotional regulation, sensory-motor coordination. Furthermore, Internet game playing was associated with lower white matter density in brain regions that are involved in decision-making, behavioral inhibition and emotional regulation...
February 11, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28185244/back-cover-eur-j-immunol-2-17
#6
(no author information available yet)
Our back cover features an immunohistological staining of a splenic B-cell follicle (IgM green, IgD blue and MOMA-1 red) in Rag2(-/-) mice reconstituted with pro-B cells propagated in vitro. The image is taken from von Muenchow et al. (pp. 394-405), who describe the long-term propagation of pro-B cells in stromal cell-free cultures. This novel culture method will allow studying B-cell development in much greater detail and might also have clinical implications.
February 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28174127/altered-functional-connectivity-in-default-mode-network-in-internet-gaming-disorder-influence-of-childhood-adhd
#7
Deokjong Lee, Junghan Lee, Jung Eun Lee, Young-Chul Jung
OBJECTIVE: Internet gaming disorder (IGD) is a type of behavioral addiction characterized by abnormal executive control, leading to loss of control over excessive gaming. Attention deficit and hyperactivity disorder (ADHD) is one of the most common comorbid disorders in IGD, involving delayed development of the executive control system, which could predispose individuals to gaming addiction. We investigated the influence of childhood ADHD on neural network features of IGD. METHODS: Resting-state functional magnetic resonance imaging analysis was performed on 44 young, male IGD subjects with and without childhood ADHD and 19 age-matched, healthy male controls...
February 5, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28152189/effectiveness-of-brief-abstinence-for-modifying-problematic-internet-gaming-cognitions-and-behaviors
#8
Daniel L King, Dean Kaptsis, Paul H Delfabbro, Michael Gradisar
This pilot study tested the efficacy of a voluntary 84-hour abstinence protocol for modifying problematic Internet gaming cognitions and behaviors METHOD: Twenty-four adults from online gaming communities, including 9 individuals who screened positively for Internet gaming disorder (IGD), abstained from Internet games for 84 hours. Surveys were collected at baseline, at daily intervals during abstinence, and at 7-day and 28-day follow-up RESULTS: Brief voluntary abstinence was successful in reducing hours of gaming, maladaptive gaming cognitions, and IGD symptoms...
February 2, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28145657/comparison-of-qeeg-findings-between-adolescents-with-attention-deficit-hyperactivity-disorder-adhd-without-comorbidity-and-adhd-comorbid-with-internet-gaming-disorder
#9
Jeong Ha Park, Ji Sun Hong, Doug Hyun Han, Kyoung Joon Min, Young Sik Lee, Baik Seok Kee, Sun Mi Kim
Internet gaming disorder (IGD) is often comorbid with attention deficit hyperactivity disorder (ADHD). In this study, we compared the neurobiological differences between ADHD comorbid with IGD (ADHD+IGD group) and ADHD without comorbidity (ADHD-only group) by analyzing quantitative electroencephalogram (QEEG) findings. We recruited 16 male ADHD+IGD, 15 male ADHD-only adolescent patients, and 15 male healthy controls (HC group). Participants were assessed using Young's Internet Addiction Scale and ADHD Rating Scale...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28141917/enhanced-bruton-s-tyrosine-kinase-activity-in-peripheral-blood-b-lymphocytes-of-autoimmune-disease-patients
#10
Odilia B J Corneth, Gwenny M P Verstappen, Sandra M J Paulissen, Marjolein J W de Bruijn, Jasper Rip, Melanie Lukkes, Jan Piet van Hamburg, Erik Lubberts, Hendrika Bootsma, Frans G M Kroese, And Rudi W Hendriks
OBJECTIVE: Bruton's tyrosine kinase (BTK) transmits crucial survival signals from the B cell receptor (BCR) in B cells. Pharmacological BTK inhibition effectively diminishes disease symptoms in mouse models of autoimmunity and, conversely, transgenic BTK overexpression induces systemic autoimmunity in mice. We investigated BTK expression and activity in human B cells in the context of autoimmune disease. METHODS: Using intracellular flow cytometry, we quantified BTK expression and phosphorylation in peripheral blood B cell subsets in patients with rheumatoid arthritis (RA; n=30) and primary Sjogren's Syndrome (pSS; n=26) and matched healthy controls...
January 31, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28137874/igd-class-switching-is-initiated-by-microbiota-and-limited-to-mucosa-associated-lymphoid-tissue-in-mice
#11
Jin Huk Choi, Kuan-Wen Wang, Duanwu Zhang, Xiaowei Zhan, Tao Wang, Chun-Hui Bu, Cassie L Behrendt, Ming Zeng, Ying Wang, Takuma Misawa, Xiaohong Li, Miao Tang, Xiaoming Zhan, Lindsay Scott, Sara Hildebrand, Anne R Murray, Eva Marie Y Moresco, Lora V Hooper, Bruce Beutler
Class-switch recombination (CSR) alters the Ig isotype to diversify antibody effector functions. IgD CSR is a rare event, and its regulation is poorly understood. We report that deficiency of 53BP1, a DNA damage-response protein, caused age-dependent overproduction of secreted IgD resulting from increased IgD CSR exclusively within B cells of mucosa-associated lymphoid tissues. IgD overproduction was dependent on activation-induced cytidine deaminase, hematopoietic MyD88 expression, and an intact microbiome, against which circulating IgD, but not IgM, was reactive...
January 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28135254/the-igm-receptor-fc%C3%AE-r-limits-tonic-bcr-signaling-by-regulating-expression-of-the-igm-bcr
#12
Trang T T Nguyen, Kathrin Kläsener, Christa Zürn, Patricia A Castillo, Ingrid Brust-Mascher, Denise M Imai, Charles L Bevins, Colin Reardon, Michael Reth, Nicole Baumgarth
The FcμR receptor for the crystallizable fragment (Fc) of immunoglobulin M (IgM) can function as a cell-surface receptor for secreted IgM on a variety of cell types. We found here that FcμR was also expressed in the trans-Golgi network of developing B cells, where it constrained transport of the IgM-isotype BCR (IgM-BCR) but not of the IgD-isotype BCR (IgD-BCR). In the absence of FcμR, the surface expression of IgM-BCR was increased, which resulted in enhanced tonic BCR signaling. B-cell-specific deficiency in FcμR enhanced the spontaneous differentiation of B-1 cells, which resulted in increased serum concentrations of natural IgM and dysregulated homeostasis of B-2 cells; this caused the spontaneous formation of germinal centers, increased titers of serum autoantibodies and excessive accumulation of B cells...
March 2017: Nature Immunology
https://www.readbyqxmd.com/read/28134318/neurophysiological-correlates-of-altered-response-inhibition-in-internet-gaming-disorder-and-obsessive-compulsive-disorder-perspectives-from-impulsivity-and-compulsivity
#13
Minah Kim, Tak Hyung Lee, Jung-Seok Choi, Yoo Bin Kwak, Wu Jeong Hwang, Taekwan Kim, Ji Yoon Lee, Jae-A Lim, Minkyung Park, Yeon Jin Kim, Sung Nyun Kim, Dai Jin Kim, Jun Soo Kwon
Although internet gaming disorder (IGD) and obsessive-compulsive disorder (OCD) represent opposite ends of the impulsivity and compulsivity dimensions, the two disorders share common neurocognitive deficits in response inhibition. However, the similarities and differences in neurophysiological features of altered response inhibition between IGD and OCD have not been investigated sufficiently. In total, 27 patients with IGD, 24 patients with OCD, and 26 healthy control (HC) subjects participated in a Go/NoGo task with electroencephalographic recordings...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28132570/the-comparison-of-temperament-and-character-between-patients-with-internet-gaming-disorder-and-those-with-alcohol-dependence
#14
Young Sik Lee, Ji Hyun Son, Jeong Ha Park, Sun Mi Kim, Baik Seok Kee, Doug Hyun Han
BACKGROUND: The differences in prevalence, natural history, and disease progression between Internet gaming disorder (IGD) and substance use disorder contribute to the controversy over IGD as a diagnosis under substance-related and addictive disorders. AIMS: The purpose of the current study was to assess the temperament and character of subjects with IGD in comparison with those with alcohol dependence (AD). METHODS: Temperament and character were assessed using Cloningernt temperament and character inventory (TCI)...
January 28, 2017: Journal of Mental Health
https://www.readbyqxmd.com/read/28128470/factors-influencing-serum-concentrations-of-igd-in-the-adult-population-an-observational-study-in-spain
#15
Iago Carballo, Noelia Rabuñal, Lucía Alvela, Luis-Fernando Pérez, Carmen Vidal, Manuela Alonso, Bernardo Sopeña, Francisco Gude, Arturo Gonzalez-Quintela
Immunoglobulin D (IgD) is the least studied of immunoglobulin classes. This study sought to investigate the potential relationship between demographic, metabolic, lifestyle and immunologic factors, and serum IgD concentrations in a general adult population. We measured serum IgD concentrations by means of a commercial turbidimetric assay in 413 individuals (median age, 55 years; 45% males), randomly selected from the adult population of a Spanish municipality. Serum IgD concentrations displayed considerable variation in the population, ranging from undetectable (<6...
January 27, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28122298/stress-vulnerability-in-male-youth-with-internet-gaming-disorder
#16
Michael Kaess, Peter Parzer, Laura Mehl, Luisa Weil, Esther Strittmatter, Franz Resch, Julian Koenig
Internet Gaming Disorder [IGD] was introduced as new behavioral addiction in DSM-5 Section 3. Vulnerability to stress is a potential predisposing factor for IGD. Given a lack of preexisting empirical data, the study investigated differences in the psychological and neurobiological response to acute stress in patients with IGD. 24 young men (mean age 18.38 years; range 13-25 years) fulfilling DSM-5 criteria for IGD and 25 matched controls underwent the Trier Social Stress Test [TSST]. Participants provided hair samples for the analysis of basal hypothalamic-pituitary-adrenal [HPA] axis activity and clinical interviews were conducted to assess psychopathology...
January 10, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28120595/cutaneous-involvement-in-plasma-cell-myeloma-report-of-a-case
#17
Farid Kosari, Hiva Saffar, Sanaz Aghaei
Plasma cellmyeloma constitutes about 10% of all hematologic malignancies. Metastatic cutaneous lesions without underlying bony involvement are rare and associated with advanced disease, poor prognosis and high tumor burden. IgG is the most common subtype and IgD is believed to have a more aggressive course.
December 2016: Acta Medica Iranica
https://www.readbyqxmd.com/read/28107522/correction-novel-igg-degrading-enzymes-of-the-igde-protease-family-link-substrate-specificity-to-host-tropism-of-streptococcus-species
#18
Christian Spoerry, Pontus Hessle, Melanie J Lewis, Lois Paton, Jenny M Woof, Ulrich von Pawel-Rammingen
[This corrects the article DOI: 10.1371/journal.pone.0164809.].
2017: PloS One
https://www.readbyqxmd.com/read/28096871/the-structured-clinical-interview-for-dsm-5-internet-gaming-disorder-development-and-validation-for-diagnosing-igd-in-adolescents
#19
Hoon Jung Koo, Doug Hyun Han, Sung-Yong Park, Jung-Hye Kwon
OBJECTIVE: This study aimed to develop and validate a Structured Clinical Interview for Internet Gaming Disorder (SCI-IGD) in adolescents. METHODS: First, we generated preliminary items of the SCI-IGD based on the information from the DSM-5 literature reviews and expert consultations. Next, a total of 236 adolescents, from both community and clinical settings, were recruited to evaluate the psychometric properties of the SCI-IGD. RESULTS: First, the SCI-IGD was found to be consistent over the time period of about one month...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28096374/phylogenetic-analysis-of-the-human-antibody-repertoire-reveals-quantitative-signatures-of-immune-senescence-and-aging
#20
Charles F A de Bourcy, Cesar J Lopez Angel, Christopher Vollmers, Cornelia L Dekker, Mark M Davis, Stephen R Quake
The elderly have reduced humoral immunity, as manifested by increased susceptibility to infections and impaired vaccine responses. To investigate the effects of aging on B-cell receptor (BCR) repertoire evolution during an immunological challenge, we used a phylogenetic distance metric to analyze Ig heavy-chain transcript sequences in both young and elderly individuals before and after influenza vaccination. We determined that BCR repertoires become increasingly specialized over a span of decades, but less plastic...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
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