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MAOA uVNTR ethnic differences

Arijit Karmakar, Rishov Goswami, Tanusree Saha, Subhamita Maitra, Anirban Roychowdhury, Chinmay Kumar Panda, Swagata Sinha, Anirban Ray, Kochupurackal P Mohanakumar, Usha Rajamma, Kanchan Mukhopadhyay
BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is an etiologically complex childhood onset neurobehavioral disorder characterized by age-inappropriate inattention, hyperactivity, and impulsivity. Symptom severity varies widely and boys are diagnosed more frequently than girls. ADHD probands were reported to have abnormal transmissions of dopamine, serotonin, and/or noradrenaline. Monoamine oxidase A (MAOA) and B (MAOB), mitochondrial outer membrane bound two isoenzymes, mediate degradation of these neurotransmitters and thus regulating their circulating levels...
October 5, 2017: BMC Medical Genetics
Dubravka Svob Strac, Zrnka Kovacic Petrovic, Matea Nikolac Perkovic, Danica Umolac, Gordana Nedic Erjavec, Nela Pivac
Post-traumatic stress disorder (PTSD), a disorder that develops following exposure to traumatic experience(s), is frequently associated with agitation, aggressive behavior and psychotic symptoms. Monoamine oxidase (MAO) degrades different biogenic amines and regulates mood, emotions and behavior, and has a role in the pathophysiology of various neuropsychiatric disorders. The aim of the study was to investigate the association between different symptoms occurring in PTSD [PTSD symptom severity assessed by the Clinician Administered PTSD Scale (CAPS), agitation and selected psychotic symptoms assessed by the Positive and Negative Syndrome Scale (PANSS)] and platelet MAO-B activity and/or genetic variants of MAOB rs1799836 and MAOA-uVNTR polymorphisms in 249 Croatian male veterans with PTSD...
July 2016: Stress: the International Journal on the Biology of Stress
Diego A Forero, Sandra López-León, Hyoung Doo Shin, Byung Lae Park, Dai-Jin Kim
BACKGROUND: Alcohol-related problems have a large impact on human health, accounting for around 4% of deaths and 4.5% of disability-adjusted life-years around the world. Genetic factors could explain a significant fraction of the risk for alcohol dependence (AD). Recent meta-analyses have found significant pooled odds ratios (ORs) for variants in the ADH1B, ADH1C, DRD2 and HTR2A genes. METHODS: In the present study, we carried out a meta-analysis of common variants in 6 candidate genes involved in neurotransmission and neuroplasticity: BDNF, DRD1, DRD3, DRD4, GRIN2B and MAOA...
April 1, 2015: Drug and Alcohol Dependence
Ming Fan, Bing Liu, Tianzi Jiang, Xingpeng Jiang, Huizhi Zhao, Jing Zhang
OBJECTIVE: To evaluate the controversial, putative associations between the three common polymorphisms [promoter variable number tandem repeat (uVNTR), T941G, (CA) repeat] of monoamine oxidase A (MAOA) and mood disorders (major depressive or bipolar disorders, BPD) by systematically meta-analyzing published case-control association studies. METHODS: We queried PubMed using the keywords 'MAOA', 'association' and 'depression' or 'bipolar'. Nine studies on uVNTR, seven studies on T941G, and eight studies on CA met the inclusion criteria...
February 2010: Psychiatric Genetics
San-Yuan Huang, Ming-Teng Lin, Wei-Wen Lin, Cheng-Chang Huang, Mee-Jen Shy, Ru-Band Lu
It has been proposed that an MAOA abnormality may be an important factor in the development of major depressive disorder (MDD). Various polymorphisms of the MAOA gene have been investigated for possible associations with mood disorders, but results have been inconsistent. The goal of the present study was to investigate whether polymorphisms of the MAOA gene are associated with MDD or alternatively with different clinical subgroups of MDD. A total of 590 Han Chinese subjects in Taiwan (312 controls and 278 MDD patients) were recruited...
2009: World Journal of Biological Psychiatry
Barbara Phillips-Bute, Joseph P Mathew, James A Blumenthal, Richard W Morris, Mihai V Podgoreanu, Michael Smith, Mark Stafford-Smith, Hilary P Grocott, Debra A Schwinn, Mark F Newman
OBJECTIVE: To assess genetic variability in two serotonin-related gene polymorphisms (MAOA-uVNTR and 5HTTLPR) and their relationships to depression and adverse cardiac events in a sample of patients undergoing coronary artery bypass surgery. METHODS: A total of 427 coronary artery bypass graft (CABG) patients were genotyped for two polymorphisms and assessed for depressive symptoms at three time points, in accordance with the Center for Epidemiological Studies-Depression (CES-D): preoperative baseline; 6 months postoperative; and 1 year postoperative...
November 2008: Psychosomatic Medicine
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