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https://www.readbyqxmd.com/read/28420271/imaging-tms-antidepressant-mechanisms-and-treatment-optimization
#1
Marc Dubin
With the antidepressant efficacy of Transcranial Magnetic Stimulation well-established by several meta-analyses, there is growing interest in its mechanism of action. TMS has been shown to engage, and in some cases, normalize functional connectivity and neurotransmitter levels within networks dysfunctional in the depressed state. In this review, I will suggest candidate biomarkers, based on neuroimaging, that may be predictive of response to TMS. I will then review the effects of TMS on networks and neurotransmitter systems involved in depression...
February 15, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28415022/simultaneous-determination-of-tryptophan-and-8-metabolites-in-human-plasma-by-liquid-chromatography-tandem-mass-spectrometry
#2
Lysiane Boulet, Patrice Faure, Patrice Flore, Julien Montérémal, Véronique Ducros
Tryptophan (Trp) is an essential amino-acid and the precursor of many biologically active substances such as kynurenine (KYN) and serotonin (5HT). Its metabolism is involved in different physiopathological states, such as cardiovascular diseases, cancer, immunomodulation or depression. Hence, the quantification of Trp catabolites, from both KYN and 5HT pathways, might be usefulfor the discovery of novel diagnostic and follow-up biomarkers. We have developed a simple method for quantification of Trp and 8 of its metabolites,involved in both KYN and 5HT pathways, using liquid chromatography coupled to tandem mass spectrometry...
April 4, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28411417/heart-rate-variability-and-cordance-in-rapid-eye-movement-sleep-as-biomarkers-of-depression-and-treatment-response
#3
Marcel A Pawlowski, Mary Gazea, Bastian Wollweber, Martin Dresler, Florian Holsboer, Martin E Keck, Axel Steiger, Marek Adamczyk, Thorsten Mikoteit
OBJECTIVES: The relevance of rapid eye movement (REM) sleep in affective disorders originates from its well-known abnormalities in depressed patients, who display disinhibition of REM sleep reflected by increased frequency of rapid eye movements (REM density). In this study we examined whether heart rate variability (HRV) and prefrontal theta cordance, both derived from REM sleep, could represent biomarkers of antidepressant treatment response. METHODS: In an open-label, case-control design, thirty-three in-patients (21 females) with a depressive episode were treated with various antidepressants for four weeks...
April 2, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28407508/stress-related-telomere-length-in-children-a-systematic-review
#4
REVIEW
Bruno Messina Coimbra, Carolina Muniz Carvalho, Patricia Natalia Moretti, Marcelo Feijó Mello, Sintia I Belangero
Telomeres are repetitive DNA sequences at the ends of chromatids that shorten following each cell replication. Once telomeres reach a critical length, DNA defense mechanisms can direct cells to either a state of arrest (senescence) or apoptosis. Stress induced by adversity is a probable cause of accelerated telomere shortening from an early age. However, few studies have examined the association between stress and telomere length in children, and it remains unclear whether young individuals may show signs of cellular aging early in life...
April 2, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28403801/iga-igm-responses-to-gram-negative-bacteria-are-not-associated-with-perinatal-depression-but-with-physio-somatic-symptoms-and-activation-of-the-tryptophan-catabolite-pathway-at-the-end-of-term-and-postnatal-anxiety
#5
Roomruangwong Chutima, Buranee Kanchanatawan, Sunee Sirivichayakul, George Anderson, André F Carvalho, Sebastien Duleu, Michel Geffard, Michael Maes
Evidence has implicated the translocation of commensal Gram-negative bacteria (Gram-B) due to leaky gut in the pathophysiology of depression and physio-somatic symptoms (e.g. fatigue, pain, irritable bowel syndrome, malaise, etc.). In addition, the leaky gut may contribute to immune-inflammatory activation and oxidative stress. This study investigated whether bacterial translocation is associated with perinatal depression and anxiety scores and with prenatal physio-somatic symptoms and immune-inflammatory biomarkers, including the tryptophan catabolite (TRYCAT) pathway...
April 7, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28399838/association-of-nutrition-club-membership-with-markers-of-health-a-cross-sectional-study
#6
Sai Krupa Das, Taylor A Vail, Namibia Lebrón-Torres, Kara A Livingston, Susan B Roberts, Gail T Rogers, Cheryl H Gilhooly, Lorien E Urban, Edward Saltzman, Nicola M McKeown, Sara C Folta
BACKGROUND: Nutrition clubs (NC) operate in community settings and provide members with nutrition education and meal replacements for weight management. NC are owned and operated by distributors of Herbalife products. There are over 6200 NC in the US, but there has been no independent assessment of the association of these NC with biomarkers of health. METHODS: We conducted a cross-sectional pilot study to compare the health status of 100 NC members to 100 community-matched controls (CC) in the greater Boston area...
April 11, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28396407/life-skills-wealth-health-and-wellbeing-in-later-life
#7
Andrew Steptoe, Jane Wardle
Life skills play a key role in promoting educational and occupational success in early life, but their relevance at older ages is uncertain. Here we measured five life skills-conscientiousness, emotional stability, determination, control, and optimism-in 8,119 men and women aged 52 and older (mean 66.7 y). We show that the number of skills is associated with wealth, income, subjective wellbeing, less depression, low social isolation and loneliness, more close relationships, better self-rated health, fewer chronic diseases and impaired activities of daily living, faster walking speed, and favorable objective biomarkers (concentration of high-density lipoprotein cholesterol, vitamin D and C-reactive protein, and less central obesity)...
April 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28395079/relationships-between-psychosocial-difficulties-and-oxidative-stress-biomarkers-in-women-subject-to-intimate-partner-violence
#8
Jae Yop Kim, Ji Hyeon Lee, Hyang Joo Song, Dong Goo Kim, Yeong Shin Yim
Women subject to violence by their intimate partners often experience a range of psychosocial problems such as depression, excessive alcohol use, and stressful life events that, in turn, lead to health issues. This study examined psychosocial difficulties and oxidative stress levels in abused and non-abused Korean women and analyzed the relationship between psychosocial outcomes and oxidative stress levels. Markers were determined in 16 women (seven abused, nine non-abused). The two groups of women (abused and non-abused) were compared with respect to scores in depression, alcohol use, life stress events, and oxidative stress biomarkers using the Mann-Whitney U test...
February 1, 2017: Health & Social Work
https://www.readbyqxmd.com/read/28392460/mesoporous-hydroxyapatite-as-a-carrier-of-olanzapine-for-long-acting-antidepression-treatment-in-rats-with-induced-depression
#9
Yan-Jye Shyong, Mao-Hsien Wang, Li-Wei Kuo, Chang-Fu Su, Wei-Ting Kuo, Kuo-Chi Chang, Feng-Huei Lin
An antidepressant carrier, mesoporous hydroxyapatite olanzapine (mesoHAP-OLZ), was designed to maintain 3weeks of constant medication release. The carrier was intramuscularly (IM) injected, where cellular activity played a role in achieving the goal of constant release. The efficiency of the treatment was evaluated from 3 perspectives in in vivo studies: locomotor activities, biomarkers, and learning and memory ability. MesoHAP-OLZ can increase the locomotor activity in rats with induced depression determined by open field test (OFT) and forced swim test (FST)...
April 6, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28386521/micrornas-as-biomarkers-for-psychiatric-conditions-a-review-of-current-research
#10
REVIEW
Anoop Narahari, Mariyah Hussain, Venkatesh Sreeram
Neural-derived exosomes can be used as diagnostic markers to screen for various psychiatric conditions. These intravenously injected exosomes carry the potential to cross the blood brain barrier and deliver miRNA molecules specifically to neurons, microglia, and oligodendrocytes in the brain, resulting in specific gene knockdown. Here the authors review and discuss the current research on microRNA molecules and the therapeutic roles they may potentially play in treating depression, bipolar disorder, and schizophrenia...
January 2017: Innovations in Clinical Neuroscience
https://www.readbyqxmd.com/read/28385493/inflammation-and-internalizing-disorders-in-adolescents
#11
Cristiano Tschiedel Belem da Silva, Marianna de Abreu Costa, Flávio Kapczinski, Bianca Wollenhaupt de Aguiar, Giovanni Abrahão Salum, Gisele Gus Manfro
Serum inflammatory markers have been studied in adults with anxiety and depression, but little is known about cytokine levels in young adolescents with emotional disorders. The objective of this study is to compare serum levels of interleukin-6 (IL-6) and interleukin-10 (IL-10) between adolescents with internalizing disorders and adolescents from the same community without internalizing disorders. A total of 134 non-medicated subjects (n=76 with internalizing disorders) were recruited from a larger sample of 2457 individuals...
April 3, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28382573/serum-global-metabolomics-profiling-reveals-profound-metabolic-impairments-in-patients-with-mps-iiia-and-mps-iiib
#12
Haiyan Fu, Aaron S Meadows, Ricardo J Pineda, Robert P Mohney, Steve Stirdivant, Douglas M McCarty
The monogenic defects in specific lysosomal enzymes in mucopolysaccharidosis (MPS) III lead to lysosomal storage of glycosaminoglycans and complex CNS and somatic pathology, for which the detailed mechanisms remain unclear. In this study, serum samples from patients with MPS IIIA (age 2-9 yr) and MPS IIIB (2-13 yr) and healthy controls (age 2-9 yr) were assayed by global metabolomics profiling of 658 metabolites using mass spectrometry. Significant alterations were detected in 423 metabolites in all MPS III patients, of which 366 (86...
April 5, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28380342/association-of-subjective-memory-complaint-and-depressive-symptoms-with-objective-cognitive-functions-in-prodromal-alzheimer-s-disease-including-pre-mild-cognitive-impairment
#13
Eun Hyun Seo, Hoowon Kim, Kyu Yeong Choi, Kun Ho Lee, Il Han Choo
BACKGROUND: Subjective memory complaints (SMC) and depressive symptoms (SDS) are common in the elderly population. However, the relationship among SMC, SDS, and cognitive function remains unclear. We investigated these associations in the elderly from cognitively normal (CN), pre-mild cognitive impairment (MCI), and amnestic MCI (aMCI) groups. METHODS: Participants (CN, 299; pre-MCI, 106; aMCI, 267) underwent comprehensive clinical and neuropsychological assessment...
March 30, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28376921/the-effectiveness-of-a-value-based-emotion-cognition-focused-educational-programme-to-reduce-diabetes-related-distress-in-malay-adults-with-type-2-diabetes-vemofit-study-protocol-for-a-cluster-randomised-controlled-trial
#14
Boon-How Chew, Rimke C Vos, Sazlina Shariff Ghazali, Nurainul Hana Shamsuddin, Aaron Fernandez, Firdaus Mukhtar, Mastura Ismail, Azainorsuzila Mohd Ahad, Narayanan N Sundram, Siti Zubaidah Mohd Ali, Guy E H M Rutten
BACKGROUND: Type 2 diabetes mellitus (T2DM) patients experience many psychosocial problems related to their diabetes. These often lead to emotional disorders such as distress, stress, anxiety and depression, resulting in decreased self-care, quality of life and disease control. The purpose of the current study is to evaluate the effectiveness of a brief value-based emotion-focused educational programme in adults with T2DM on diabetes-related distress (DRD), depressive symptoms, illness perceptions, quality of life, diabetes self-efficacy, self-care and clinical outcomes...
April 4, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28376710/electrocardiographic-changes-mimicking-acute-coronary-syndrome-in-a-large-intracranial-tumour-a-diagnostic-dilemma
#15
Nilukshana Yogendranathan, H M M T B Herath, S P Pahalagamage, Aruna Kulatunga
BACKGROUND: ST elevation Myocardial infarction is a medical emergency. A variety of noncardiac conditions had been known to mimic the ECG changes that are seen in acute coronary syndrome. Although the common ECG changes that are documented with raised intracranial pressure are T inversions, prolongation of QT interval and sinus bradycardia, ST elevation or depression, arrhythmias and prominent U waves have also been recognized. However, ST elevations in association with primary intracranial tumours are rarely reported...
April 4, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28375942/butyrylcholinesterase-as-a-blood-biomarker-in-neuroblastoma
#16
Don W Coulter, Angela D Boettner, Zbigniew P Kortylewicz, Stephen P Enke, Jake A Luther, Vivek Verma, Janina Baranowska-Kortylewicz
Blood-based biomarkers are important in the detection of the disease and in the assessment of responses to therapy. In this study, butyrylcholinesterase was evaluated as a potential biomarker in newly diagnosed neuroblastoma (NB) patients at diagnosis and longitudinally during treatment. Plasma butyrylcholinesterase activities in age-matched and sex-matched children were used as controls. Pretreatment butyrylcholinesterase levels in NB subjects are on an average 2 times lower than butyrylcholinesterase levels in healthy subjects...
May 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28375203/the-serum-protein-levels-of-the-tpa-bdnf-pathway-are-implicated-in-depression-and-antidepressant-treatment
#17
H Jiang, S Chen, C Li, N Lu, Y Yue, Y Yin, Y Zhang, X Zhi, D Zhang, Y Yuan
Evidence demonstrates that brain-derived neurotrophic factor (BDNF) has a pivotal role in the pathogenesis of major depressive disorder (MDD). Precursor-BDNF (proBDNF) and mature BDNF (mBDNF) have opposing biological effects in neuroplasticity, and the tissue-type plasminogen activator (tPA)/plasmin system is crucial in the cleavage processing of proBDNF to mBDNF. However, very little is known about the role of the tPA-BDNF pathway in MDD. We examined serum protein concentrations in the tPA-BDNF pathway, including tPA, BDNF, tropomyosin receptor kinase B (TrkB), proBDNF and p75NTR, obtained from 35 drug-free depressed patients before and after 8 weeks of escitalopram (mean 12...
April 4, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28374419/the-acute-phase-mediator-serum-amyloid-a-is-associated-with-symptoms-of-depression-and-fatigue
#18
E Y Bryleva, S A Keaton, J Grit, Z Madaj, A Sauro-Nagendra, L Smart, S Halstead, E Achtyes, L Brundin
OBJECTIVE: Establish whether inflammatory biomarkers-serum amyloid A (SAA), C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α)-are related to key symptoms of depression, including anxiety and fatigue, in a cross-sectional, out-patient setting to identify biomarkers that reflect psychiatric symptomatology in a naturalistic, real-life population. METHODS: We measured SAA, CRP, IL-6, and TNF-α in plasma samples from 89 adult psychiatric out-patients by multiplex, high-sensitivity electrochemiluminescent assays...
May 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28373169/telomere-length-and-neighborhood-circumstances-evaluating-biological-response-to-unfavorable-exposures
#19
EDITORIAL
Shannon M Lynch, Nandita Mitra, Krithika Ravichandran, Jonathan Mitchell, Elaine Spangler, Wenting Zhou, Electra D Paskett, Sarah Gehlert, Cecilia DeGraffinreid, Raymond Stowe, Tamara Dubowitz, Harold Riethman, Charles C Branas, M K Peek, Timothy R Rebbeck
Background: Multilevel frameworks suggest neighborhood circumstances influence biology; however, this relationship is not well studied. Telomere length (TL) shortening has been associated with individual-level and neighborhood-level exposures and disease and may provide insights into underlying biologic mechanisms linking neighborhood with biology. To support neighborhood-biology investigations, we sought to determine the independent effect of neighborhood exposures on TL using standard multilevel linear regression models and quantile regression, a nonlinear, social science method applicable for testing the biologic hypothesis that extremes of the TL distribution are related to poor outcomes...
April 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28371072/can-lncrnas-be-indicators-for-the-diagnosis-of-early-onset-or-acute-schizophrenia-and-distinguish-major-depressive-disorder-and-generalized-anxiety-disorder-a-cross-validation-analysis
#20
Xuelian Cui, Wei Niu, Lingming Kong, Mingjun He, Kunhong Jiang, Shengdong Chen, Aifang Zhong, Wanshuai Li, Jim Lu, Liyi Zhang
Depression and anxiety are apparent symptoms in the early onset or acute phase of schizophrenia (SZ), which complicate timely diagnosis and treatment. It is imperative to seek an indicator to distinguish schizophrenia from depressive and anxiety disorders. Using lncRNA microarray profiling and RT-PCR, three up-regulated lncRNAs in SZ, six down-regulated lncRNAs in major depressive disorder (MDD), and three up-regulated lncRNAs in generalized anxiety disorder (GAD) had been identified as potential biomarkers...
March 28, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
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