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Augmentation depression

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https://www.readbyqxmd.com/read/28445587/cb1-receptors-downregulate-a-camp-epac2-plc-pathway-to-silence-the-nerve-terminals-of-cerebellar-granule-cells
#1
Beatris Alonso, David Bartolomé-Martín, José Javier Ferrero, Jorge Ramírez-Franco, Magdalena Torres, José Sánchez-Prieto
Cannabinoid receptors mediate short-term retrograde inhibition of neurotransmitter release, as well as long-term depression of synaptic transmission at excitatory synapses. The responses of individual nerve terminals in VGLUT1-pHluorin transfected cerebellar granule cells to cannabinoids have shown that prolonged activation of cannabinoid type 1 receptors (CB1Rs) silences a subpopulation of previously active synaptic boutons. Adopting a combined pharmacological and genetic approach to study the molecular mechanisms of CB1R-induced silencing, we found that adenylyl cyclase inhibition decreases cAMP levels while it increases the number of silent synaptic boutons and occludes the induction of further silencing by the cannabinoid agonist HU-210...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28444833/chronic-stress-induced-mechanical-hyperalgesia-is-controlled-by-capsaicin-sensitive-neurones-in-the-mouse
#2
B Scheich, P Vincze, É Szőke, É Borbély, Á Hunyady, J Szolcsányi, Á Dénes, Zs Környei, B Gaszner, Zs Helyes
BACKGROUND: Clinical studies demonstrated peripheral nociceptor deficit in stress-related chronic pain states, such as fibromyalgia. The interactions of stress and nociceptive systems have special relevance in chronic pain, but the underlying mechanisms including the role of specific nociceptor populations remain unknown. We investigated the role of capsaicin-sensitive neurones in chronic stress-related nociceptive changes. METHOD: Capsaicin-sensitive neurones were desensitized by the capsaicin analogue resiniferatoxin (RTX) in CD1 mice...
April 25, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28441583/randomized-controlled-trial-of-repetitive-transcranial-magnetic-stimulation-combined-with-paroxetine-for-the-treatment-of-patients-with-first-episode-major-depressive-disorder
#3
Yu-Mei Wang, Ning Li, Lin-Lin Yang, Mei Song, Le Shi, Wen-Hao Chen, Su-Xia Li, Xue-Yi Wang, Lin Lu
Repetitive transcranial magnetic stimulation (rTMS) has been introduced as a new and effective treatment option for major depression. This paper examined the effectiveness of rTMS on first episode depressed patients when combined with antidepressant drugs. A random sample of forty-three first-episode depressed patients received active or sham rTMS to the left dorsolateral prefrontal cortex, and concomitantly took paroxetine for 4 weeks, and paroxetine monotherapy for 4 weeks afterwards. Response was defined as a ≥50% decrease on the total Hamilton Depression Rating Scale (HDRS) from the baseline, and remission was defined as an HDRS total residual score <8...
April 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28436756/the-role-of-attachment-style-in-interpersonal-psychotherapy-for-depressed-adolescents
#4
Meredith Gunlicks-Stoessel, Ana Westervelt, Kristina Reigstad, Laura Mufson, Susanne Lee
OBJECTIVE(S): This study examined changes in depressed adolescents' reports of attachment anxiety and avoidance with interpersonal psychotherapy (IPT-A), and the relationship between attachment style and change in depression with IPT-A. METHOD: Forty adolescents (aged 12-17) participated in a 16-week randomized clinical trial of 4 adaptive treatment strategies for adolescent depression that began with IPT-A and augmented treatment for insufficient responders (n = 22) by adding additional IPT-A sessions (n = 11) or the antidepressant medication, fluoxetine (n = 11)...
April 24, 2017: Psychotherapy Research: Journal of the Society for Psychotherapy Research
https://www.readbyqxmd.com/read/28429472/transoral-orthodromic-temporalis-muscle-transfer-technique-for-the-paralysed-midface-our-learning-curve-experience-from-the-first-10-cases
#5
Lepa Lazarova, Tristram H Lesser, Samuel C Leong
Sir Harold Gillies first described rotating a band of temporalis muscle over the zygoma where the muscle sling was augmented with strips of fascia lata to rehabilitate facial paralysis (1) . McLaughlin later modified this technique in the 1950s without inversion of the temporal muscle but in an orthodromic manner thus avoiding the soft tissue fullness over the zygomatic arch area and depression of the donor site (2) . Although several refinements of this technique have been described, all required skin incisions on the face until a transoral technique was described recently by this clinical group (3) ...
April 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28418941/prenatal-fluoxetine-modifies-the-behavioral-and-hormonal-responses-to-stress-in-male-mice-role-for-glucocorticoid-insensitivity
#6
Ronit Avitsur
Women with major depressive disorder during pregnancy often use selective serotonin reuptake inhibitors (SSRIs) antidepressants. These drugs readily cross the placental barrier and impact the developing fetal brain. Recently, we reported that prenatal fluoxetine (FLX), an SSRI antidepressant drug, altered corticosterone and behavioral responses to stress in female mouse offspring. The present study assessed the effects of prenatal FLX on these responses in males. The results showed that prenatal FLX significantly augmented the corticosterone response to acute stress in young prepubescent mice...
April 17, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28412602/secondary-outcomes-from-the-pediatric-obsessive-compulsive-disorder-treatment-study-ii
#7
Christine A Conelea, Robert R Selles, Kristen G Benito, Michael M Walther, Jason T Machan, Abbe M Garcia, Jeffrey Sapyta, Sarah Morris, Martin Franklin, Jennifer B Freeman
The Pediatric Obsessive-Compulsive Disorder Treatment Study II (POTS II) investigated the benefit of serotonin reuptake inhibitor (SRI) augmentation with cognitive behavioral therapy (CBT). Primary outcomes focused on OCD symptom change and indicated benefit associated with a full course of CBT. Given that the majority of youth with OCD suffer from significant comorbid symptoms and impaired quality of life, the current study examined POTS II data for effects on secondary outcomes. Participants were 124 youth ages 7-17 years with a primary diagnosis of OCD who were partial responders to an adequate SRI trial...
April 7, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28409100/arthroscopic-technique-for-treatment-of-schatzker-type-iii-tibia-plateau-fractures-without-fluoroscopy
#8
Afsar T Ozkut, Oguz S Poyanli, Ersin Ercin, Kaya Akan, Irfan Esenkaya
Accurate reduction and maintenance of the stability with correct implant positioning is critical for surgical treatment of tibial plateau fractures. Our technique includes an arthroscopic reduction and fixation of Schatzker type III tibial plateau fractures with a bulls-eye screw placement without fluoroscopy control. With the arthroscopic guidance, an anterior cruciate ligament drill guide is placed and a K-wire sent to the midpoint of the depressed fragment through the guide at a 40° angle to the coronal axis of the tibia...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28407141/sensory-deprivation-triggers-synaptic-and-intrinsic-plasticity-in-the-hippocampus
#9
Hila Milshtein-Parush, Samuel Frere, Limor Regev, Coren Lahav, Amit Benbenishty, Shamgar Ben-Eliyahu, Inbal Goshen, Inna Slutsky
Hippocampus, a temporal lobe structure involved in learning and memory, receives information from all sensory modalities. Despite extensive research on the role of sensory experience in cortical map plasticity, little is known about whether and how sensory experience regulates functioning of the hippocampal circuits. Here, we show that 9 ± 2 days of whisker deprivation during early mouse development depresses activity of CA3 pyramidal neurons by several principal mechanisms: decrease in release probability, increase in the fraction of silent synapses, and reduction in intrinsic excitability...
April 12, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28406285/serotonin-and-serotonin-transporters-in-the-adrenal-medulla-a-potential-hub-for-modulation-of-the-sympathetic-stress-response
#10
Rebecca L Brindley, Mary Beth Bauer, Randy D Blakely, Kevin P M Currie
Serotonin (5-HT) is an important neurotransmitter in the central nervous system where it modulates circuits involved in mood, cognition, movement, arousal, and autonomic function. The 5-HT transporter (SERT; SLC6A4) is a key regulator of 5-HT signaling, and genetic variations in SERT are associated with various disorders including depression, anxiety, and autism. This review focuses on the role of SERT in the sympathetic nervous system. Autonomic/sympathetic dysfunction is evident in patients with depression, anxiety, and other diseases linked to serotonergic signaling...
April 13, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28403623/lithium-a-classic-drug-frequently-discussed-but-sadly-seldom-prescribed
#11
Olga Zivanovic
OBJECTIVE: Distinguished authors in the field have repeatedly alerted psychiatrists of the alarming trends in the treatment of bipolar disorders: decline of lithium use, paralleled by the increase of prescribing anticonvulsants and second-generation antipsychotic drugs. Research has been conducted in order to explore the factors that led to this development and to provide arguments for the need to reverse this trend. METHOD: This paper represents a narrative review of the literature containing retrieved research articles focusing on the efficacy of lithium...
April 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/28385704/adjunctive-ketamine-in-electroconvulsive-therapy-updated-systematic-review-and-meta-analysis
#12
REVIEW
Alexander McGirr, Marcelo T Berlim, David J Bond, Peter Y Chan, Lakshmi N Yatham, Raymond W Lam
BackgroundKetamine has emerged as a novel therapeutic agent for major depressive episodes, spurring interest in its potential to augment electroconvulsive therapy (ECT).AimsWe sought to update our preliminary systematic review and meta-analysis, focusing on randomised controlled trials (RCTs) involving an index course of ECT, and testing the hypothesis that lack of efficacy is due to barbiturate anaesthetic co-administration.MethodWe searched EMBASE, CENTRAL and Medline to identify RCTs examining the efficacy of ketamine during a course of ECT...
April 6, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28385173/novel-augmentation-strategies-in-major-depression
#13
Klaus Martiny
Hypothesis The hypotheses of all the four included studies share the common idea that it is possible to augment the effect of antidepressant drug treatment by applying different interventions and with each intervention attain a clinically meaningful better effect compared to a control condition, and with minor side effects, thus improving the short- and medium-term outcome in major depression. Procedures Study design The basic study design has been the double blind randomised controlled trial (RCT). In the light therapy study, all patients were treated with sertraline for the whole of the study duration...
April 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28376513/the-role-of-environmental-stress-on-lower-urinary-tract-symptoms
#14
Melissa T Sanford, Larissa V Rodriguez
PURPOSE OF REVIEW: Lower urinary tract symptoms (LUTS) have been associated with comorbid conditions such as anxiety and depression. In addition, stress appears to influence the development or exacerbation of LUTS. This article seeks to review literature regarding the role of environmental stress on LUTS, focusing on findings presented in the last year. RECENT FINDINGS: Numerous authors have published on the impact early childhood experiences, acute and chronic stress, and psychiatric illness play in the development of LUTS...
May 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28373688/microglial-recruitment-of-il-1%C3%AE-producing-monocytes-to-brain-endothelium-causes-stress-induced-anxiety
#15
D B McKim, M D Weber, A Niraula, C M Sawicki, X Liu, B L Jarrett, K Ramirez-Chan, Y Wang, R M Roeth, A D Sucaldito, C G Sobol, N Quan, J F Sheridan, J P Godbout
Psychosocial stress contributes to the development of anxiety and depression. Recent clinical studies have reported increased inflammatory leukocytes in circulation of individuals with stress-related psychiatric disorders. Parallel to this, our work in mice shows that social stress causes release of inflammatory monocytes into circulation. In addition, social stress caused the development of prolonged anxiety that was dependent on inflammatory monocytes in the brain. Therefore, we hypothesize that chronic stress drives the production of inflammatory monocytes that are actively recruited to the brain by microglia, and these monocytes augment neuroinflammatory signaling and prolong anxiety...
April 4, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28359862/ketamine-augmentation-of-electroconvulsive-therapy-to-improve-neuropsychological-and-clinical-outcomes-in-depression-ketamine-ect-a-multicentre-double-blind-randomised-parallel-group-superiority-trial
#16
Ian M Anderson, Andrew Blamire, Tim Branton, Ross Clark, Darragh Downey, Graham Dunn, Andrew Easton, Rebecca Elliott, Clare Elwell, Katherine Hayden, Fiona Holland, Salman Karim, Colleen Loo, Jo Lowe, Rajesh Nair, Timothy Oakley, Antony Prakash, Parveen K Sharma, Stephen R Williams, R Hamish McAllister-Williams
BACKGROUND: The use of electroconvulsive therapy (ECT) is limited by concerns about its cognitive adverse effects. Preliminary evidence suggests that administering the glutamate antagonist ketamine with ECT might alleviate cognitive adverse effects and accelerate symptomatic improvement; we tested this in a randomised trial of low-dose ketamine. METHODS: In this multicentre, randomised, parallel-group study in 11 ECT suites serving inpatient and outpatient care settings in seven National Health Service trusts in the North of England, we recruited severely depressed patients, who were diagnosed as having unipolar or bipolar depressive episodes defined as moderate or severe by DSM-IV criteria, aged at least 18 years, and were able and willing to provide written consent to participate in the study...
March 27, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28351776/the-hippocampus-and-dorsal-raphe-nucleus-are-key-brain-areas-associated-with-the-antidepressant-effects-of-lithium-augmentation-of-desipramine
#17
Sofia Cussotto, John F Cryan, Olivia F O'Leary
Approximately 50% of depressed individuals fail to achieve remission with first-line antidepressant drugs and a third remain treatment-resistant. When first-line antidepressant treatment is unsuccessful, second-line strategies include dose optimisation, switching to another antidepressant, combination with another antidepressant, or augmentation with a non-antidepressant medication. Much of the evidence for the efficacy of augmentation strategies comes from studies using lithium to augment the effects of tricyclic antidepressants...
March 27, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28349992/central-neuromodulators-for-treating-functional-gi-disorders-a-primer
#18
REVIEW
W Harley Sobin, Thomas W Heinrich, Douglas A Drossman
Patients with functional GI disorders (FGIDs) are commonplace in the gastroenterologist's practice. A number of these patients may be refractory to peripherally acting agents, yet respond to central neuromodulators. There are benefits and potential adverse effects to using TCAs, SSRIs, SNRIs, atypical antipsychotics, and miscellaneous central neuromodulators in these patients. These agents can benefit mood, pain, diarrhea, constipation, nausea, sleep, and depression. The mechanisms by which they work, the differences between classes and individual agents, and the various adverse effects are outlined...
March 28, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28348378/endocannabinoid-signalling-modulates-susceptibility-to-traumatic-stress-exposure
#19
Rebecca J Bluett, Rita Báldi, Andre Haymer, Andrew D Gaulden, Nolan D Hartley, Walker P Parrish, Jordan Baechle, David J Marcus, Ramzi Mardam-Bey, Brian C Shonesy, Md Jashim Uddin, Lawrence J Marnett, Ken Mackie, Roger J Colbran, Danny G Winder, Sachin Patel
Stress is a ubiquitous risk factor for the exacerbation and development of affective disorders including major depression and posttraumatic stress disorder. Understanding the neurobiological mechanisms conferring resilience to the adverse consequences of stress could have broad implications for the treatment and prevention of mood and anxiety disorders. We utilize laboratory mice and their innate inter-individual differences in stress-susceptibility to demonstrate a critical role for the endogenous cannabinoid 2-arachidonoylglycerol (2-AG) in stress-resilience...
March 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/28338544/associations-between-medication-class-and-subsequent-augmentation-of-depression-treatment-in-privately-insured-us-adults
#20
Omid Ameli, Rene Soria-Saucedo, Eric G Smith, Howard J Cabral, Marina Soley-Bori, Lewis E Kazis
IMPORTANCE: Treatment augmentation is an important clinical decision in the pharmacotherapy for depression, yet few studies have examined the rates of treatment augmentation by medication class. OBJECTIVE: The aim of this study was to examine which initial pharmacotherapies for depression are more likely than others to result in subsequent treatment augmentation. METHODS: This study is a retrospective cohort analysis of administrative data of 214,705 privately insured US adults between the age of 18 and 64 years who were diagnosed with a new episode of depression in 2009...
June 2017: Journal of Clinical Psychopharmacology
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