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https://www.readbyqxmd.com/read/28922734/persistent-antidepressant-effect-of-low-dose-ketamine-and-activation-in-the-supplementary-motor-area-and-anterior-cingulate-cortex-in-treatment-resistant-depression-a-randomized-control-study
#1
Mu-Hong Chen, Cheng-Ta Li, Wei-Chen Lin, Chen-Jee Hong, Pei-Chi Tu, Ya-Mei Bai, Chih-Ming Cheng, Tung-Ping Su
A single low-dose ketamine infusion exhibited a rapid antidepressant effect within 1h. Despite its short biological half-life (approximately 3h), the antidepressant effect of ketamine has been demonstrated to persist for several days. However, changes in brain function responsible for the persistent antidepressant effect of a single low-dose ketamine infusion remain unclear METHODS: Twenty-four patients with treatment-resistant depression (TRD) were randomized into three groups according to the treatment received: 0...
September 9, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28911960/characterization-of-the-adrenocorticotrophic-hormone-induced-mouse-model-of-resistance-to-antidepressant-drug-treatment
#2
Bettadapura N Srikumar, Mahesh Paschapur, Narasimharaju Kalidindi, Bharath Adepu, Manish L Das, Muppana V Sreedhara, Vijaya K Kuchibhotla, Rick L Pieschl, Yu-Wen Li, Durga Shiva Prasad Ega, Justin V Louis, Senthilkumar Murugesan, Pattipati S Naidu, Manjunath Ramarao, Linda J Bristow, Reeba K Vikramadithyan
Approximately 30-60% of patients treated with existing antidepressants fail to achieve remission of depressive symptoms leading to Treatment Resistant Depression (TRD). There is an urgent need to develop novel medications, which is highly limited by the non-availability of relevant animal models with good predictive validity. ACTH administration has been shown to result in the resistance to acute and chronic effects of imipramine. However, the pharmacology of the model and the mechanisms contributing to the resistance are not completely understood...
September 11, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28906325/antidepressant-combination-versus-antidepressants-plus-second-generation-antipsychotic-augmentation-in-treatment-resistant-unipolar-depression
#3
Gabriella Gobbi, Maykel F Ghabrash, Nicolas Nuñez, John Tabaka, Jessica Di Sante, Marie Saint-Laurent, Stephen Vida, Theodore Kolivakis, Nancy Low, Pablo Cervantes, Linda Booij, Stefano Comai
Patients with treatment-resistant unipolar depression (TRD) are treated with antidepressant combinations (ADs) or with second-generation antipsychotics plus AD (SGA+AD) augmentation; however, the clinical characteristics, the factors associated independently with response to SGA+AD, and the outcome trajectories have not yet been characterized. We performed a naturalistic study on the latest stable trial (medication unchanged for about 3 months) in 86 TRD patients with resistance to at least two ADs trials, who received ADs (n=36) or SGA+AD (n=50) treatments...
September 12, 2017: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28860343/antigen-receptor-sequencing-of-paired-bone-marrow-samples-shows-homogeneous-distribution-of-acute-lymphoblastic-leukemia-subclones
#4
Prisca M J Theunissen, David van Zessen, Andrew P Stubbs, Malek Faham, Michel Zwaan, Jacques J M van Dongen, Vincent H J Van der Velden
In B-cell precursor acute lymphoblastic leukemia, the initial leukemic cells share the same antigen receptor gene rearrangements. However, due to ongoing rearrangement processes, leukemic cells with different gene rearrangement patterns can develop, resulting in subclone formation. We studied leukemic subclones and their distribution in the bone marrow and peripheral blood at diagnosis. Antigen receptor gene rearrangements (IGH, IGK, TRG, TRD, TRB) were analyzed by next-generation sequencing in seven paired bone marrow samples and five paired bone marrow-blood samples...
August 31, 2017: Haematologica
https://www.readbyqxmd.com/read/28858062/retinal-detachment-surgery-in-a-pediatric-population-visual-and-anatomic-outcomes
#5
Sarah P Read, Hassan A Aziz, Ajay Kuriyan, Nikisha Kothari, Janet L Davis, William E Smiddy, Harry W Flynn, Timothy G Murray, Audina Berrocal
PURPOSE: Pediatric retinal detachments (RDs) are unique in etiology, anatomy, and prognosis compared with the adult population. The mechanisms of pediatric RD include tractional (TRD), rhegmatogenous retinal detachment, traumatic, and other types, such as exudative or hemorrhagic. This study examined visual and anatomical outcomes of pediatric RD undergoing surgical repair at a single university referral center. METHODS: A retrospective consecutive case series of patients clinically diagnosed and undergoing surgery for RD between birth and 15 years of age from 2002 to 2013 at a single academic institution...
August 28, 2017: Retina
https://www.readbyqxmd.com/read/28844559/a-randomized-sham-controlled-study-of-maintenance-rtms-for-treatment-resistant-depression-trd
#6
René Benadhira, Fanny Thomas, Noomane Bouaziz, Sonia Braha, Palmyre Schenin-King Andrianisaina, Clémence Isaac, Virginie Moulier, Dominique Januel
A few open-labeled studies have investigated the use of maintenance rTMS to prevent relapse for treatment-resistant depression (TRD) after rTMS treatment. We aim to assess the benefits of maintenance rTMS treatment for TRD patients who respond to rTMS treatment using a randomized, double-blind controlled design. Fifty eight TRD patients received rTMS over one month in an open-labeled design study (phase I). Responder patients were then randomized into active and sham high-frequency rTMS groups for the subsequent eleven months (phase II)...
August 18, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28840042/a-review-of-the-conceptualisation-and-risk-factors-associated-with-treatment-resistant-depression
#7
REVIEW
Jenifer A Murphy, Jerome Sarris, Gerard J Byrne
Major depression does not always remit. Difficult-to-treat depression is thought to contribute to the large disease burden posed by depression. Treatment-resistant depression (TRD) is the conventional term for nonresponse to treatment in individuals with major depression. Indicators of the phenomenon are the poor response rates to antidepressants in clinical practice and the overestimation of the efficacy of antidepressants in medical scientific literature. Current TRD staging models are based on anecdotal evidence without an empirical rationale to rank one treatment strategy above another...
2017: Depression Research and Treatment
https://www.readbyqxmd.com/read/28833246/increased-contribution-of-wheat-nocturnal-transpiration-to-daily-water-use-under-drought
#8
Eodie Claverie, Felicien Meunier, Mathieu Javaux, Walid Sadok
Increasing evidence suggests that in crops, nocturnal water use could represent 30% of daytime water consumption particularly in semi-arid and arid areas. This raises the questions of whether nocturnal transpiration rates (TRN ) are i) less influenced by drought than daytime TR (TRD ), ii) increased by higher nocturnal vapor pressure deficit (VPDN ) which prevails in such environments, and iii) involved in crop drought tolerance. In this investigation, we addressed those questions by subjecting two wheat genotypes differing in drought tolerance to progressive soil drying under two long-term VPDN regimes imposed under naturally fluctuating conditions...
August 21, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28792656/amygdala-and-regional-volumes-in-treatment-resistant-versus-nontreatment-resistant-depression-patients
#9
Anca-Larisa Sandu, Eric Artiges, André Galinowski, Thierry Gallarda, Frank Bellivier, Hervé Lemaitre, Bernard Granger, Damien Ringuenet, Eleni T Tzavara, Jean-Luc Martinot, Marie-Laure Paillère Martinot
BACKGROUND: Although treatment-resistant and nontreatment-resistant depressed patients show structural brain anomalies relative to healthy controls, the difference in regional volumetry between these two groups remains undocumented. METHODS: A whole-brain voxel-based morphometry (VBM) analysis of regional volumes was performed in 125 participants' magnetic resonance images obtained on a 1.5 Tesla scanner; 41 had treatment-resistant depression (TRD), 40 nontreatment-resistant depression (non-TRD), and 44 were healthy controls...
August 9, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28783576/association-of-serum-bdnf-levels-with-psychotic-symptom-in-chronic-patients-with-treatment-resistant-depression-in-a-chinese-han-population
#10
Xingbing Huang, Xiong Huang, Yanling Zhou, Hongbo He, Fang Mei, Bin Sun, Jair C Soares, Xiang Yang Zhang
The neurotrophic hypothesis of depression is supported by consistent findings of lower serum BDNF levels in depressed patients. Increasing evidence shows different clinical characteristics of patients with psychotic major depression versus nonpsychotic major depression. However, the possible association between BDNF and psychotic symptoms in depression has not been investigated. We recruited 90 treatment-resistant depression (TRD) patients and 90 gender- and age-matched healthy control subjects and examined serum BDNF in both groups...
July 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28781911/deep-brain-stimulation-for-psychiatric-disorders-is-there-an-impact-on-social-functioning
#11
REVIEW
Christian Saleh, Gregor Hasler
BACKGROUND: Deep brain stimulation (DBS) for refractory psychiatric disorders shows promising effects on symptom-reduction, however, little is known regarding the effects of DBS on social outcome. METHODS: A PubMed search based on original studies of DBS for psychiatric disorders [treatment resistant depression (TRD), Gilles de la Tourette's syndrome (GTS), and obsessive compulsive disorder (OCD)] was conducted. Data on social outcome following surgery were extracted and analyzed...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28754306/episodic-memory-following-deep-brain-stimulation-of-the-ventral-anterior-limb-of-the-internal-capsule-and-electroconvulsive-therapy
#12
Isidoor O Bergfeld, Mariska Mantione, Mechteld L C Hoogendoorn, Ferdinand Horst, Peter Notten, P Richard Schuurman, Damiaan Denys
BACKGROUND: Electroconvulsive Therapy (ECT) and Deep Brain Stimulation (DBS) are effective treatments for patients with treatment-resistant depression (TRD). However, a common side effect of ECT is autobiographical memory loss (e.g., personal experiences), whereas the impact of DBS on autobiographical memories has never been established. OBJECTIVE: Comparing autobiographical memories following DBS and ECT. METHODS: In two hospitals in The Netherlands, we interviewed 25 TRD patients treated with DBS of the ventral anterior limb of the internal capsule (vALIC), 14 TRD patients treated with ECT and 22 healthy controls (HC) with the Autobiographical Memory Inventory - Short Form (AMI-SF) in a prospective, longitudinal study between March 2010 and August 2016...
July 19, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28738276/the-impact-of-accelerated-high-frequency-rtms-on-brain-neurochemicals-in-treatment-resistant-depression-insights-from-1-h-mr-spectroscopy
#13
Chris Baeken, Jean-Pascal Lefaucheur, Peter Van Schuerbeek
OBJECTIVE: Although accelerated repetitive transcranial magnetic stimulation (rTMS) designs seem to be able to alleviate mood over a relatively short period of time, no studies yet examined the cellular effects on neurochemicals with regard to working mechanisms, safety and neural integrity. METHODS: Eighteen right-handed antidepressant-free unipolar treatment resistant depressed (TRD) patients participated in this sham-controlled accelerated high frequency (aHF)-rTMS (1)H MR spectroscopy study applied to the left dorsolateral prefrontal cortex (DLPFC)...
September 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28723697/the-history-and-future-of-ablative-neurosurgery-for-major-depressive-disorder
#14
Matthew Volpini, Peter Giacobbe, G Rees Cosgrove, Anthony Levitt, Andres M Lozano, Nir Lipsman
BACKGROUND: There is an urgent need to develop safe and effective treatments for patients with treatment-resistant depression (TRD). Several neurosurgical procedures have been developed to treat the dysfunctional brain circuits implicated in major depression. OBJECTIVES: This review describes the most common ablative procedures used to treat major depressive disorder: anterior cingulotomy, subcaudate tractotomy, limbic leucotomy, and anterior capsulotomy. The efficacy and safety of each are discussed and compared with other current and emerging modalities, including deep brain stimulation (DBS) and MR-guided focused ultrasound (MRgFUS)...
2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28666206/low-dose-ketamine-for-treatment-resistant-depression-in-an-academic-clinical-practice-setting
#15
David Feifel, Benjamin Malcolm, Danielle Boggie, Kelly Lee
BACKGROUND: Recent studies demonstrating a rapid, robust improvement in treatment resistant depression (TRD) following a single sub-anesthetic infusion of ketamine have generated much excitement. However, these studies are limited in their generalizability to the broader TRD population due to their subject exclusion criteria which typically limit psychiatric comorbidity, concurrent medication, and level of suicide risk. This paper describes the safety and efficacy of sub-anesthetic ketamine infusions in a naturalistic TRD patient sample participating in a real-world TRD treatment program within a major university health system...
October 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28658013/hippocampal-gray-volumes-increase-in-treatment-resistant-depression-responding-to-vagus-nerve-stimulation
#16
Giulia Ida Perini, Tommaso Toffanin, Giorgio Pigato, Giovanni Ferri, Halima Follador, Filippo Zonta, Carlo Pastorelli, Giulia Piazzon, Luca Denaro, Giuseppe Rolma, Mario Ermani, Domenico DʼAvella
BACKGROUND: Changes in hippocampal gray matter volumes are proposed to be involved in pathogenesis, course, and treatment response of major depressive disorder. Converging evidence suggests that reduced neurogenesis may occur in treatment-resistant depression (TRD). Vagus nerve stimulation (VNS) is a well-defined, long-term brain stimulation treatment for TRD. However, its in vivo positive effect on hippocampal modulation as mechanism of action has never been investigated before in clinical studies...
September 2017: Journal of ECT
https://www.readbyqxmd.com/read/28631064/analysis-of-case-parent-trios-for-imprinting-effect-using-a-loglinear-model-with-adjustment-for-sex-of-parent-specific-transmission-ratio-distortion
#17
Lam Opal Huang, Claire Infante-Rivard, Aurélie Labbe
Transmission ratio distortion (TRD) is a phenomenon where parental transmission of disease allele to the child does not follow the Mendelian inheritance ratio. TRD occurs in a sex-of-parent-specific or non-sex-of-parent-specific manner. An offset computed from the transmission probability of the minor allele in control-trios can be added to the loglinear model to adjust for TRD. Adjusting the model removes the inflation in the genotype relative risk (RR) estimate and Type 1 error introduced by non-sex-of-parent-specific TRD...
August 2017: Human Genetics
https://www.readbyqxmd.com/read/28620897/enhanced-recovery-pathway-in-elderly-patients-undergoing-colorectal-surgery-is-there-an-effect-of-increasing-ages-results-from-the-perioperative-italian-society-registry
#18
Marco Braga, Luigi Beretta, Nicolò Pecorelli, Marianna Maspero, Umberto Casiraghi, Felice Borghi, Luca Pellegrino, Stefano Bona, Roberta Monzani, Gianluigi Ferrari, Danilo Radrizzani, Riccardo Iuliani, Carlo Bima, Marco Scatizzi, Giancarlo Missana, Marco Azzola Guicciardi, Andrea Muratore, Michele Crespi, Hedayat Bouzari, Andrea Pisani Ceretti, Ferdinando Ficari
Previous studies reported that enhanced recovery pathway (ERP) is safe in elderly who did not require a specifically tailored protocol. In previous studies, elderly have been considered as a homogeneous cohort and the cut-off value to identify them was different. The aim of the present study is to assess the compliance to ERP and its impact on postoperative outcome in three subgroups of elderly patients with increasing ages. Prospectively collected data entered in an electronic Italian registry specifically designed for ERP were reviewed...
June 15, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28617544/the-relationship-between-quality-of-life-and-clinical-phenotype-in-patients-with-treatment-resistant-and-non-treatment-resistant-depression
#19
J Qiao, L-J Qian, H-F Zhao, G-H Gong, D-Q Geng
OBJECTIVE: The purpose of this investigation is to determine the differences in quality of life (QOL) and clinical phenotype between patients with treatment resistant (TRD) and non-treatment resistant depression (NTRD). PATIENTS AND METHODS: The severity, QOL, and cognitive function of 107 TRD and 173 NTRD patients were evaluated and calculated by the Hamilton Depression Scale-17 (HAMD-17), the 36-Item Short Form Health Survey (SF-36), and the P300 component of event-related potentials (ERP), respectively...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28598698/beyond-serotonin-newer-antidepressants-in-the-future
#20
Gopalkumar Rakesh, Chi-Un Pae, Prakash S Masand
There are numerous antidepressants for the treatment of major depressive disorder (MDD) on the market. However, inadequate treatment response, therapeutic lag between drug administration and the onset of clinical improvement, and safety/tolerability issues with the use of contemporary antidepressants have accelerated the search for newer antidepressants with novel mechanisms of action. Areas covered: The authors review novel antidepressants with rapid efficacy for diverse MDD symptoms and have fewer adverse effects (AEs)...
June 19, 2017: Expert Review of Neurotherapeutics
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