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Major depression

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https://www.readbyqxmd.com/read/29454288/apocynum-venetum-leaf-extract-reverses-depressive-like-behaviors-in-chronically-stressed-rats-by-inhibiting-oxidative-stress-and-apoptosis
#1
Xiangting Li, Ting Wu, Zhonghai Yu, Tingting Li, Jingsi Zhang, Zhennian Zhang, Min Cai, Wen Zhang, Jun Xiang, Dingfang Cai
BACKGROUND: Major depressive disorder (MDD) is a common but serious psychiatric disorder, but current treatments are inadequate for approximately half of the patients with MDD. Thus, better methods of treatment are urgently needed. This study aimed to investigate the antidepressant-like effects and potential mechanism of Apocynum venetum leaf extract (AVLE) in chronic unpredictable mild stress (CUMS) rat model of depression. MATERIALS AND METHODS: The CUMS rat model of depression was used to investigate the antidepressant-like activity and relevant mechanism of AVLE (30, 60, and 125 mg/kg, i...
February 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29454221/-13-c-phenylalanine-breath-test-and-serum-biopterin-in-schizophrenia-bipolar-disorder-and-major-depressive-disorder
#2
Toshiya Teraishi, Masahiro Kajiwara, Hiroaki Hori, Daimei Sasayama, Shinsuke Hidese, Junko Matsuo, Ikki Ishida, Yasuhiro Kajiwara, Yuji Ozeki, Miho Ota, Kotaro Hattori, Teruhiko Higuchi, Hiroshi Kunugi
Phenylalanine is required for the synthesis of the neurotransmitters dopamine, noradrenaline, and adrenaline. The rate-limiting step for phenylalanine metabolism is catalyzed by phenylalanine hydroxylase (PAH) and its cofactor tetrahydrobiopterin. We aimed to detect altered phenylalanine metabolism in major psychiatric disorders using the l-[1- 13 C]phenylalanine breath test ( 13 C-PBT) and serum biopterin levels. We also investigated association of PAH mutations with schizophrenia and phenylalanine metabolism...
February 3, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29454180/tryptophan-kynurenine-and-lipid-related-metabolites-as-blood-biomarkers-for-first-episode-drug-na%C3%A3-ve-patients-with-major-depressive-disorder-an-exploratory-pilot-case-control-study
#3
Nobuki Kuwano, Takahiro A Kato, Daiki Setoyama, Mina Sato-Kasai, Norihiro Shimokawa, Kohei Hayakawa, Masahiro Ohgidani, Noriaki Sagata, Hiroaki Kubo, Junji Kishimoto, Dongchon Kang, Shigenob Kanba
BACKGROUND: Early intervention in depression has been critical to prevent its negative impact including suicide. Recent blood biomarker studies for major depressive disorder (MDD) have suggested that tryptophan-kynurenine and lipid related metabolites are involved in the pathophysiology of MDD. However, there have been limited studies investigating these blood biomarkers in first-episode drug-naïve MDD, which are particularly important for early intervention in depression. METHODS: As an exploratory pilot case-control study, we examined the above blood biomarkers, and analyzed how these biomarkers are associated with clinical variables in first-episode drug-naïve MDD patients, based on metabolome/lipidome analysis...
January 31, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29454164/self-reported-inhibition-predicts-history-of-suicide-attempts-in-bipolar-disorder-and-major-depression
#4
André Ponsoni, Laura Damiani Branco, Charles Cotrena, Flávio Milman Shansis, Rodrigo Grassi-Oliveira, Rochele Paz Fonseca
BACKGROUND: Studies have reliably identified an association between suicide attempts and executive functions such as decision making (DM) and inhibitory control (IC) in patients with mood disorders. As such, the present study aimed to investigate the association between inhibition, DM, impulsivity and the history of suicide attempts in individuals with bipolar (BD) or major depressive disorder (MDD), identifying which assessment instruments may be most strongly associated with suicide in clinical samples...
February 14, 2018: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29454034/add-on-high-frequency-deep-transcranial-magnetic-stimulation-dtms-to-bilateral-prefrontal-cortex-in-depressive-episodes-of-patients-with-major-depressive-disorder-bipolar-disorder-i-and-major-depressive-with-alcohol-use-disorders
#5
Chiara Rapinesi, Georgios D Kotzalidis, Stefano Ferracuti, Nicoletta Girardi, Abraham Zangen, Gabriele Sani, Ruggero N Raccah, Paolo Girardi, Maurizio Pompili, Antonio Del Casale
BACKGROUND: Dorsolateral prefrontal cortex (DLPFC) is critically involved in mood and alcohol use disorders. OBJECTIVE: We aimed to investigate the safety of intervention with add-on bilateral prefrontal high-frequency deep transcranial magnetic stimulation (dTMS) and between-group differences in treatment response in patients with different types of depressive episodes, including major depressive episodes in the course of major depressive disorder (MDD), bipolar disorder, type I (BD-I), and MDD with alcohol use disorder (MDAUD)...
February 14, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29453749/lifelong-robbery-victimisation-and-mental-disorders-at-age-18-years-brazilian-population-based-study
#6
Joseph Murray, Natália Peixoto Lima, Ana Carolina Oliveira Ruivo, Andrea Ramírez Varela, Caroline Cardozo Bortolotto, Elma Izze da Silva Magalhães, Franciéle Marabotti Costa Leite, Mariana Otero Xavier, Jean-Baptiste Pingault, Seena Fazel, Gregore Iven Mielke, Luciana Anselmi, Fernando César Wehrmeister, Helen Gonçalves, Ana Maria Baptista Menezes
PURPOSE: Urban violence is a major problem in Brazil and may contribute to mental disorders among victims. The aim of this study was to assess the association between robbery victimisation and mental health disorders in late adolescence. METHODS: At age 18 years, 4106 participants in the 1993 Pelotas Birth Cohort Study were assessed. A questionnaire about history of robbery victimisation was administered, the Self-Report Questionnaire was used to screen for common mental disorders, and the Mini International Neuropsychiatric Interview was used to assess major depressive disorder and generalised anxiety disorder...
February 17, 2018: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/29453686/antipsychotic-prescribing-and-safety-monitoring-practices-in-children-and-youth-a-population-based-study-in-alberta-canada
#7
Wenxin Chen, Monica Cepoiu-Martin, Antonia Stang, Diane Duncan, Chris Symonds, Lara Cooke, Tamara Pringsheim
BACKGROUND AND OBJECTIVE: Antipsychotic medication use has steadily increased in Canada, with an expansion in the profile of users and the diagnoses for which they are used. The use of antipsychotics is associated with a number of adverse effects for which routine monitoring is recommended. The objectives of this study were to determine the most common diagnoses associated with antipsychotic use in children in Alberta, Canada and the proportion who receive recommended laboratory tests for adverse effects...
February 16, 2018: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29453441/circulating-cell-free-mitochondrial-dna-but-not-leukocyte-mitochondrial-dna-copy-number-is-elevated-in-major-depressive-disorder
#8
Daniel Lindqvist, Owen M Wolkowitz, Martin Picard, Lars Ohlsson, Francesco S Bersani, Johan Fernström, Åsa Westrin, Christina M Hough, Jue Lin, Victor I Reus, Elissa S Epel, Synthia H Mellon
Major depressive disorder (MDD) has been linked to mitochondrial defects, which could manifest in mitochondrial DNA (mtDNA) polymorphisms or mutations. Additionally, copy number of mtDNA (mtDNA-cn) can be quantified in peripheral blood mononuclear cells (PBMC)s, indirectly reflecting cellular energetics, or in the circulating cell-free mtDNA (ccf-mtDNA) levels, which may reflect a fraction of the mitochondrial genome released during cellular stress. Few studies have examined ccf-mtDNA in MDD, and no studies have tested its relationship with intracellular mtDNA-cn or with antidepressant treatment response...
January 30, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29453413/depression-and-obesity-evidence-of-shared-biological-mechanisms
#9
REVIEW
Yuri Milaneschi, W Kyle Simmons, Elisabeth F C van Rossum, Brenda Wjh Penninx
Depression and obesity are common conditions with major public health implications that tend to co-occur within individuals. The relationship between these conditions is bidirectional: the presence of one increases the risk for developing the other. It has thus become crucial to gain a better understanding of the mechanisms responsible for the intertwined downward physiological spirals associated with both conditions. The present review focuses specifically on shared biological pathways that may mechanistically explain the depression-obesity link, including genetics, alterations in systems involved in homeostatic adjustments (HPA axis, immuno-inflammatory activation, neuroendocrine regulators of energy metabolism including leptin and insulin, and microbiome) and brain circuitries integrating homeostatic and mood regulatory responses...
February 16, 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29453169/randomized-eeg-functional-brain-networks-in-major-depressive-disorders-with-greater-resilience-and-lower-rich-club-coefficient
#10
Minghui Zhang, Haiyan Zhou, Liqing Liu, Lei Feng, Jie Yang, Gang Wang, Ning Zhong
OBJECTIVE: Some studies have shown that the functional electroencephalogram (EEG) and functional magnetic resonance imaging (fMRI) networks in those with major depressive disorders (MDDs) have an abnormal random topology. In this study we aimed to further investigate the characteristics of the randomized functional brain networks in MDDs by examining resting-state scalp-EEG data. METHODS: Based on the methods of independent component analysis (ICA) and graph theoretic analysis, the abnormalities in the power spectral density (PSD) functional brain networks were compared between 13 MDDs and 13 matched healthy controls (HCs)...
January 31, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29453011/emotional-availability-in-mothers-with-borderline-personality-disorder-and-mothers-with-remitted-major-depression-is-differently-associated-with-psychopathology-among-school-aged-children
#11
Dorothea Kluczniok, Katja Boedeker, Catherine Hindi Attar, Charlotte Jaite, Anna-Lena Bierbaum, Daniel Fuehrer, Luisa Paetz, Katja Dittrich, Sabine C Herpertz, Romuald Brunner, Sibylle Winter, Andreas Heinz, Stefan Roepke, Christine Heim, Felix Bermpohl
BACKGROUND: Both, maternal borderline personality disorder (BPD) and maternal major depressive disorder (MDD) are often associated with adverse consequences for children, including increased risk for child behavior problems. Reduced maternal emotional availability might play a critical role in transmitting maternal psychopathology on the child. Our aim was to investigate the association between emotional availability and maternal BPD and MDD in remission (rMDD), and if this interrelatedness mediates the association between maternal mental disorders and child behavior problems...
February 7, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29452775/the-link-between-depression-and-atherosclerosis-through-the-pathways-of-inflammation-and-endothelium-dysfunction
#12
REVIEW
Christina Chrysohoou, Natasa Kollia, Dimitris Tousoulis
A large body of evidence suggests that depression increases the risk of cardiovascular morbidity and mortality. The elevated risk associated with depression is not limited to clinical major depressive disorder but also extends to sub-syndromal depressive symptoms and constructs with overlapping characteristics, such as vital exhaustion. Multiple pathophysiological pathways are involved in the relationship between depressive symptoms and atherosclerosis and its clinical manifestations and progression. These underlying mechanisms are not yet fully understood and need further clarification...
March 2018: Maturitas
https://www.readbyqxmd.com/read/29452685/behavioural-outcomes-of-subthalamic-stimulation-and-medical-therapy-versus-medical-therapy-alone-for-parkinson-s-disease-with-early-motor-complications-earlystim-trial-secondary-analysis-of-an-open-label-randomised-trial
#13
Eugénie Lhommée, Lars Wojtecki, Virginie Czernecki, Karsten Witt, Franziska Maier, Lisa Tonder, Lars Timmermann, Thomas D Hälbig, Fanny Pineau, Franck Durif, Tatiana Witjas, Marcus Pinsker, Maximilian Mehdorn, Friederike Sixel-Döring, Andreas Kupsch, Rejko Krüger, Saskia Elben, Stephan Chabardès, Stéphane Thobois, Christine Brefel-Courbon, Fabienne Ory-Magne, Jean-Marie Regis, David Maltête, Anne Sauvaget, Jörn Rau, Alfons Schnitzler, Michael Schüpbach, Carmen Schade-Brittinger, Gunther Deuschl, Jean-Luc Houeto, Paul Krack
BACKGROUND: Although subthalamic stimulation is a recognised treatment for motor complications in Parkinson's disease, reports on behavioural outcomes are controversial, which represents a major challenge when counselling candidates for subthalamic stimulation. We aimed to assess changes in behaviour in patients with Parkinson's disease receiving combined treatment with subthalamic stimulation and medical therapy over a 2-year follow-up period as compared with the behavioural evolution under medical therapy alone...
March 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29452218/tnf%C3%AE-disrupts-blood-brain-barrier-integrity-to-maintain-prolonged-depressive-like-behavior-in-mice
#14
Yuyan Cheng, Sachi Desse, Ana Martinez, Ryan J Worthen, Richard S Jope, Eleonore Beurel
Recovery from major depressive disorder is difficult, particularly in patients who are refractory to antidepressant treatments. To examine factors that regulate recovery, we developed a prolonged learned helplessness depression model in mice. After the induction of learned helplessness, mice were separated into groups that recovered or did not recover within 4 weeks. Comparisons were made between groups in hippocampal proteins, inflammatory cytokines, and blood brain barrier (BBB) permeability. Compared with mice that recovered and control mice, non-recovered mice displaying prolonged learned helplessness had greater hippocampal activation of glycogen synthase kinase-3 (GSK3), higher levels of tumor necrosis factor-α (TNFα), interleukin-17A, and interleukin-23, increased permeability of the blood brain barrier (BBB), and lower levels of the BBB tight junction proteins occludin, ZO1, and claudin-5...
February 13, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29452193/antidepressant-activity-of-vorinostat-is-associated-with-amelioration-of-oxidative-stress-and-inflammation-in-a-corticosterone-induced-chronic-stress-model-in-mice
#15
Athira Kv, Rajaram Mohanrao Madhana, Indu Chandran Js, Mangala Lahkar, Swapnil Sinha, V G M Naidu
Major depressive disorder (MDD) is a multifactorial neuropsychiatric disorder. Chronic administration of corticosterone (CORT) to rodents is used to mimic the stress associated dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, a well-established feature found in depressive patients. Recently, preclinical studies have demonstrated the antidepressant potential of histone deacetylase (HDAC) inhibitors. So, we examined the antidepressant potential of vorinostat (VOR), a HDAC inhibitor against CORT injections in male mice...
February 13, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29451821/protection-from-vascular-dysfunction-in-female-rats-with-chronic-stress-and-depressive-symptoms
#16
Steven D Brooks, Stan Hileman, Paul D Chantler, Samantha Milde, Kent C Lemaster, Stephanie Frisbee, J Kevin Shoemaker, Dwayne N Jackson, Jefferson C Frisbee
The increasing prevalence and severity of clinical depression is strongly correlated with vascular disease risk, creating a comorbid condition with poor outcomes, although demonstrating a sexual disparity where females are at lower risk than males for subsequent cardiovascular events. To determine potential mechanisms responsible for this protection against stress/depression-induced vasculopathy in females, we exposed male and female ({plus minus}ovariectomy) rats to the unpredictable chronic mild stress (UCMS) model for 8 weeks and determined depressive symptom severity, vascular reactivity in aortic rings (AR) and ex vivo middle cerebral arteries (MCA), and determined the profile of major metabolites regulating vascular tone...
February 16, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29451287/computational-identification-of-the-binding-mechanism-of-a-triple-reuptake-inhibitor-amitifadine-for-the-treatment-of-major-depressive-disorder
#17
Weiwei Xue, Panpan Wang, Gao Tu, Fengyuan Yang, Guoxun Zheng, Xiaofeng Li, Xiaoxu Li, Yuzong Chen, Xiaojun Yao, Feng Zhu
Amitifadine, the only drug ever clinically tested in Phase 3 for treating depression, is a triple reuptake inhibitor (TRI) that simultaneously interacts with human monoamine transporters (MATs) including hSERT, hNET and hDAT. This novel multi-target strategy improves drug efficacy and reduces the toxic side effects of drugs. However, the binding modes accounting for amitifadine's polypharmacological mode of action are still elusive, and extensive exploration of the amitifadine-target interactions between amitifadine and MATs is urgently needed...
February 16, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29450725/bdnf-effects-on-dendritic-spine-morphology-and-hippocampal-function
#18
REVIEW
Oliver von Bohlen Und Halbach, Viola von Bohlen Und Halbach
Neurotrophins, including brain-derived neurotrophic factor (BDNF), are expressed in the hippocampus, as well as their precursors, the pro-neurotrophins. The neurotrophins signal through specific tyrosine kinase receptors and the low affinity receptor p75NTR. Moreover, the pro-neurotrophins are considered to be biologically active by signaling through specific receptors. The neurotrophins, especially BDNF, are involved in processes related to learning and memory. Furthermore, it is thought that BDNF also plays a crucial role in major depression...
February 15, 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29450462/epidemiology-of-adult-dsm-5-major-depressive-disorder-and-its-specifiers-in-the-united-states
#19
Deborah S Hasin, Aaron L Sarvet, Jacquelyn L Meyers, Tulshi D Saha, W June Ruan, Malka Stohl, Bridget F Grant
Importance: No US national data are available on the prevalence and correlates of DSM-5-defined major depressive disorder (MDD) or on MDD specifiers as defined in DSM-5. Objective: To present current nationally representative findings on the prevalence, correlates, psychiatric comorbidity, functioning, and treatment of DSM-5 MDD and initial information on the prevalence, severity, and treatment of DSM-5 MDD severity, anxious/distressed specifier, and mixed-features specifier, as well as cases that would have been characterized as bereavement in DSM-IV...
February 14, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29450250/association-between-drug-use-and-urban-violence-data-from-the-ii-brazilian-national-alcohol-and-drugs-survey-bnads
#20
Renata Rigacci Abdalla, Luciana Massaro, André de Queiroz Constantino Miguel, Ronaldo Laranjeira, Raul Caetano, Clarice S Madruga
Objective: To investigate the association of alcohol and cocaine use with urban violence (both as victim and as perpetrator) in a representative sample of the Brazilian population. Method: The Second Brazilian Alcohol and Drugs Survey (II BNADS) interviewed 4607 individuals aged 14 years and older from the Brazilian household population including an oversample of 1157 adolescents (14 to 18 years old). The survey gathered information on alcohol, tobacco and illegal substances use as well as on risk factors for abuse and dependence, behaviors associated with the use of substances and the possible consequences, as urban violence indicators...
June 2018: Addictive Behaviors Reports
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