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https://www.readbyqxmd.com/read/28101340/pseudo-continuous-arterial-spin-labeling-imaging-of-cerebral-blood-perfusion-asymmetry-in-drug-na%C3%A3-ve-patients-with-first-episode-major-depression
#1
Guangdong Chen, Haiman Bian, Deguo Jiang, Mingwei Cui, Shengzhang Ji, Mei Liu, Xu Lang, Chuanjun Zhuo
Many previous studies have reported that regional cerebral blood flow (rCBF) aberrations may be one of the pathological characteristics of depression and rCBF has demonstrated a certain degree of asymmetry. However, studies investigating the cerebral blood perfusion asymmetry changes of drug-naïve patients experiencing their first episode of major depression using pseudo-continuous arterial spin labeling (pCASL) are rare. Ten drug-naïve patients experiencing their first major depression episode and 15 healthy volunteers were enrolled in the current study...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28091825/preoperative-sport-improves-the-outcome-of-lumbar-disc-surgery-a-prospective-monocentric-cohort-study
#2
Anja Tschugg, Sara Lener, Sebastian Hartmann, Matthias Wildauer, Wolfgang N Löscher, Sabrina Neururer, Claudius Thomé
A lumbar disc herniation resulting in surgery may be an incisive event in a patient's everyday life. The patient's recovery after sequestrectomy may be influenced by several factors. There is evidence that regular physical activity can lower pain perception and improve the outcome after surgery. For this purpose, we hypothesized that patients performing regular sports prior to lumbar disc surgery might have less pain perception and disability thereafter. Fifty-two participants with a single lumbar disc herniation confirmed on MRI treated by a lumbar sequestrectomy were included in the trial...
January 13, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28065685/excessive-daytime-sleepiness-and-fatigue-may-indicate-accelerated-brain-aging-in-cognitively-normal-late-middle-aged-and-older-adults
#3
Diego Z Carvalho, Erik K St Louis, Bradley F Boeve, Michelle M Mielke, Scott A Przybelski, David S Knopman, Mary M Machulda, Rosebud O Roberts, Yonas E Geda, Ronald C Petersen, Clifford R Jack, Prashanthi Vemuri
Excessive daytime sleepiness (EDS) and fatigue increases with age. The aim of this study was to investigate the association between EDS and fatigue with cortical thickness and hippocampal volume in cognitively normal, late middle-aged and older adults. We performed a cross-sectional observational study of 1374 cognitively-normal subjects aged 50 years and older who had a structural MRI. Regional cortical thickness and hippocampal volume were measured. Multiple linear regression models were fit to explore associations between EDS and fatigue and structural MRI measures in different brain regions, adjusting for multiple covariates...
November 3, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28064175/neuroimaging-of-inflammation-in-memory-and-related-other-disorders-nimrod-study-protocol-a-deep-phenotyping-cohort-study-of-the-role-of-brain-inflammation-in-dementia-depression-and-other-neurological-illnesses
#4
W Richard Bevan-Jones, Ajenthan Surendranathan, Luca Passamonti, Patricia Vázquez Rodríguez, Robert Arnold, Elijah Mak, Li Su, Jonathan P Coles, Tim D Fryer, Young T Hong, Guy Williams, Franklin Aigbirhio, James B Rowe, John T O'Brien
INTRODUCTION: Inflammation of the central nervous system is increasingly regarded as having a role in cognitive disorders such as dementia and depression, but it is not clear how such inflammation relates to other aspects of neuropathology, structural and functional changes in the brain and symptoms (as assessed via clinical and neuropsychological assessment and MRI). This study will explore these pathophysiological mechanisms using positron emission tomography (PET) which allows in vivo imaging of inflammation, amyloid and τ deposition, together with neuropsychological profiling, MRI and peripheral biomarker analysis...
January 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28049077/computational-models-of-bitemporal-bifrontal-and-right-unilateral-ect-predict-differential-stimulation-of-brain-regions-associated-with-efficacy-and-cognitive-side-effects
#5
S Bai, V Gálvez, S Dokos, D Martin, M Bikson, C Loo
BACKGROUND: Extensive clinical research has shown that the efficacy and cognitive outcomes of electroconvulsive therapy (ECT) are determined, in part, by the type of electrode placement used. Bitemporal ECT (BT, stimulating electrodes placed bilaterally in the frontotemporal region) is the form of ECT with relatively potent clinical and cognitive side effects. However, the reasons for this are poorly understood. OBJECTIVE: This study used computational modelling to examine regional differences in brain excitation between BT, Bifrontal (BF) and Right Unilateral (RUL) ECT, currently the most clinically-used ECT placements...
December 29, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28040847/diagnostic-classification-of-unipolar-depression-based-on-resting-state-functional-connectivity-mri-effects-of-generalization-to-a-diverse-sample
#6
Benedikt Sundermann, Stephan Feder, Heike Wersching, Anja Teuber, Wolfram Schwindt, Harald Kugel, Walter Heindel, Volker Arolt, Klaus Berger, Bettina Pfleiderer
In small, selected samples, an approach combining resting-state functional connectivity MRI and multivariate pattern analysis has been able to successfully classify patients diagnosed with unipolar depression. Purposes of this investigation were to assess the generalizability of this approach to a large clinically more realistic sample and secondarily to assess the replicability of previously reported methodological feasibility in a more homogeneous subgroup with pronounced depressive symptoms. Two independent subsets were drawn from the depression and control cohorts of the BiDirect study, each with 180 patients with and 180 controls without depression...
December 31, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28040430/association-of-obstructive-sleep-apnea-with-episodic-memory-and-cerebral-microvascular-pathology-a-preliminary-study
#7
Nancy A Kerner, Steven P Roose, Gregory H Pelton, Adam Ciarleglio, Jennifer Scodes, Cody Lentz, Joel R Sneed, D P Devanand
OBJECTIVES: To evaluate the impact of obstructive sleep apnea (OSA) on neurocognitive function and brain morphology in older adults with depression and cognitive impairment. METHODS: We prospectively screened OSA with the STOP-Bang questionnaire in the last 25 patients enrolled into the Donepezil Treatment of Cognitive Impairment and Depression (DOTCODE) trial. High and low probability of OSA were defined as a STOP-Bang score of ≥5 (h-OSA) and of <5 (l-OSA), respectively...
November 17, 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28038362/brain-connectivity-networks-and-longitudinal-trajectories-of-depression-symptoms-in-adolescence
#8
Rachel Ellis, Marc L Seal, Christopher Adamson, Richard Beare, Julian G Simmons, Sarah Whittle, Nicholas B Allen
High levels of depression during adolescence may contribute to the risk for future depression later in life. This study examined the relationship between the developmental timing of depressive symptoms, and brain structural outcomes in late adolescence. In a prior work, we examined longitudinal trajectories of depressive symptoms in 243 adolescents (121 males and 122 females), and identified four subgroups: a normative group with stable low levels of depression, two groups with declining symptoms, and one group with increasing symptoms...
December 21, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28032004/orbitofrontal-cortical-thinning-and-aggression-in-mild-traumatic-brain-injury-patients
#9
Daniel J Epstein, Margaret Legarreta, Elliot Bueler, Jace King, Erin McGlade, Deborah Yurgelun-Todd
INTRODUCTION: Although mild traumatic brain injury (mTBI) comprises 80% of all TBI, the morphological examination of the orbitofrontal cortex (OFC) in relation to clinical symptoms such as aggression, anxiety and depression in a strictly mTBI sample has never before been performed. OBJECTIVES: The primary objective of the study was to determine if mTBI patients would show morphological differences in the OFC and if the morphology of this region would relate to clinical symptoms...
December 2016: Brain and Behavior
https://www.readbyqxmd.com/read/28018214/total-cerebral-small-vessel-disease-mri-score-is-associated-with-cognitive-decline-in-executive-function-in-patients-with-hypertension
#10
Renske Uiterwijk, Robert J van Oostenbrugge, Marjolein Huijts, Peter W De Leeuw, Abraham A Kroon, Julie Staals
Objectives: Hypertension is a major risk factor for white matter hyperintensities (WMH), lacunes, cerebral microbleeds, and perivascular spaces, which are MRI markers of cerebral small vessel disease (SVD). Studies have shown associations between these individual MRI markers and cognitive functioning and decline. Recently, a "total SVD score" was proposed in which the different MRI markers were combined into one measure of SVD, to capture total SVD-related brain damage. We investigated if this SVD score was associated with cognitive decline over 4 years in patients with hypertension...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28018194/cross-sectional-and-longitudinal-relationships-between-depressive-symptoms-and-brain-atrophy-in-ms-patients
#11
Heiner Stuke, Katrin Hanken, Jochen Hirsch, Jan Klein, Fabian Wittig, Andreas Kastrup, Helmut Hildebrandt
Introduction: Depressive symptoms are a frequent and distressing phenomenon in Multiple Sclerosis (MS) patients. Cross-sectional research links these symptoms to reduced brain gray matter volumes in parts of the prefrontal and temporal lobe as well as subcortical structures like the hippocampus, nucleus caudatus and globus pallidus. Nevertheless, prospective relationships between regional gray matter volume and the course of depressive symptoms are poorly understood. Methods: Forty-four patients with relapsing-remitting or secondary progressive MS participated in a prospective study with two assessments of depressive symptoms and high-resolution MRI with an inter-test-interval of 17 months...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28017781/inotropic-support-against-early-brain-injury-improves-cerebral-hypoperfusion-and-outcomes-in-a-murine-model-of-subarachnoid-hemorrhage
#12
Tomoko Mutoh, Tatsushi Mutoh, Kazuhiro Nakamura, Kazumasu Sasaki, Yasuko Tatewaki, Tatsuya Ishikawa, Yasuyuki Taki
Early brain injury/ischemia is a recent therapeutic target that contributes to triggering delayed cerebral ischemia (DCI) in the setting of subarachnoid hemorrhage (SAH). This study aimed to determine the role of dobutamine for inotropic cardiac support in improving cerebral blood flow (CBF) and outcomes after experimental SAH, mediated by hypoxia-inducible factor (HIF). Thirty-one mice were subjected to SAH by endovascular perforation, and assigned to either 2% isoflurane postconditioning performed between 1 and 2...
December 23, 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/28012422/altered-patterns-of-association-between-cortical-thickness-and-subcortical-volume-in-patients-with-first-episode-major-depressive-disorder-a-structural-mri-study
#13
Ke Zhao, Haiyan Liu, Rui Yan, Lingling Hua, Yu Chen, Jiabo Shi, Zhijian Yao, Qing Lu
Depressed individuals may exhibit changes in cortical thickness and subcortical volume. However, we know little about their associated connection patterns in the brain's neural circuits. This study explored correlations between overall cortical thickness and the volume of several subcortical structures in first episode major depressive disorder (MDD) patients. Thirty-six untreated individuals experiencing their first episode of MDD were compared with healthy controls (n=41). Their brains were imaged by T1-weighted MRI, allowing the measurement of cortical thickness and the volume of subcortical structures...
December 1, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28009983/abnormal-brain-functional-connectivity-leads-to-impaired-mood-and-cognition-in-hyperthyroidism-a-resting-state-functional-mri-study
#14
Ling Li, Mengmeng Zhi, Zhenghua Hou, Yuqun Zhang, Yingying Yue, Yonggui Yuan
Patients with hyperthyroidism frequently have neuropsychiatric complaints such as lack of concentration, poor memory, depression, anxiety, nervousness, and irritability, suggesting brain dysfunction. However, the underlying process of these symptoms remains unclear. Using resting-state functional magnetic resonance imaging (rs-fMRI), we depicted the altered graph theoretical metric degree centrality (DC) and seed-based resting-state functional connectivity (FC) in 33 hyperthyroid patients relative to 33 healthy controls...
December 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/28008646/acute-cardiac-support-with-intravenous-milrinone-promotes-recovery-from-early-brain-injury-in-a-murine-model-of-severe-subarachnoid-hemorrhage
#15
Tomoko Mutoh, Tatsushi Mutoh, Kazuhiro Nakamura, Yukiko Yamamoto, Yoshiharu Tsuru, Hirokazu Tsubone, Tatsuya Ishikawa, Yasuyuki Taki
Early brain injury/ischemia (EBI) is a serious complication early after subarachnoid hemorrhage (SAH) that contributes to development of delayed cerebral ischemia (DCI). This study aimed to determine the role of inotropic cardiac support using milrinone (MIL) on restoring acute cerebral hypoperfusion attributable to EBI and improving outcomes after experimental SAH. Forty-three male C57BL/6 mice were assigned to either sham surgery (SAH-sham), SAH induced by endovascular perforation plus postconditioning with 2% isoflurane (Control), or SAH plus isoflurane combined with MIL with and without hypoxia-inducible factor inhibitor (HIF-I) pretreatment...
December 23, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28004244/gender-differences-after-lumbar-sequestrectomy-a-prospective-clinical-trial-using-quantitative-sensory-testing
#16
Anja Tschugg, Wolfgang N Löscher, Sara Lener, Matthias Wildauer, Sebastian Hartmann, Sabrina Neururer, Claudius Thomé
BACKGROUND: Quantitative sensory testing (QST) gained popularity to evaluate the time course of recovery in sensory dysfunction and the results of different treatment options. Concerning sex differences in lumbar spine surgery, female gender seems to play a major role as a negative prognostic factor in different spinal disorders. For this purpose, we hypothesised that there are also comparable differences in pain patterns in men and women after lumbar sequestrectomy using QST. METHODS: We applied the QST protocol of the German Research Network on Neuropathic Pain in 53 patients (21 women and 32 men) with a single lumbar disc herniation confirmed on MRI treated by a lumbar sequestrectomy...
December 21, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28002537/cerebral-arteriopathy-with-subcortical-infarcts-and-leukoencephalopathy-in-acromegalic-patient-with-severe-headache
#17
LuminiŢa Nicoleta Cima, Simona Vasilica Fica, Alice Ioana Albu, Ioana Maria Lambrescu, Ioana SmărăndiŢa Lăcău, Bogdan Ovidiu Popescu, Mihaela Gherghiceanu, Corin Virgil Badiu, Carmen Gabriela Barbu
A 68-year-old female patient was admitted in our clinic with severe frontal bilateral headache, dizziness, depression and cognitive decline in the context of a previously diagnosed acromegaly. She also had high blood pressure, dyslipidemia, secondary diabetes mellitus. Acromegaly was caused by a growth hormone (GH) secreting-pituitary macroadenoma, so a transsphenoidal surgery was performed. The postoperative magnetic resonance imaging (MRI) scan revealed a 20÷22÷25 mm pituitary mass remnant and medical therapy with somatostatin analogues (SSAs) was started...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27999666/beclin-1-mediated-autophagy-may-be-involved-in-the-elderly-cognitive-and-affective-disorders-in-streptozotocin-induced-diabetic-mice
#18
Zhu-Fei Guan, Xiu-Ling Zhou, Xiao-Ming Zhang, Yu Zhang, Yan-Mei Wang, Qi-Lin Guo, Gang Ji, Guo-Feng Wu, Na-Na Wang, Hao Yang, Zhong-Yu Yu, Hou-Guang Zhou, Jing-Chun Guo, Ying-Chao Liu
BACKGROUND: Diabetes is the most common metabolic disease with many chronic complications, and cognitive disorders are one of the common complications in patients with diabetes. Previous studies have showed that autophagy played important roles in the progression of metabolic syndrome, diabetes and other diseases. So we investigated whether aged diabetic mice are prone to be associated with the cognitive and affective disorders and whether Beclin-1-mediated autophagy might be involved in thepahological process...
2016: Translational Neurodegeneration
https://www.readbyqxmd.com/read/27995733/dentate-gyrus-cornu-ammonis-ca-4-volume-is-decreased-and-associated-with-depressive-episodes-and-lipid-peroxidation-in-bipolar-ii-disorder-longitudinal-and-cross-sectional-analyses
#19
Torbjørn Elvsåshagen, Pedro Zuzarte, Lars T Westlye, Erlend Bøen, Dag Josefsen, Birgitte Boye, Per K Hol, Ulrik F Malt, L Trevor Young, Ana C Andreazza
OBJECTIVES: Reduced dentate gyrus volume and increased oxidative stress have emerged as potential pathophysiological mechanisms in bipolar disorder. However, the relationship between dentate gyrus volume and peripheral oxidative stress markers remains unknown. Here, we examined dentate gyrus-cornu ammonis (CA) 4 volume longitudinally in patients with bipolar II disorder (BD-II) and healthy controls and investigated whether BD-II is associated with elevated peripheral levels of oxidative stress...
December 2016: Bipolar Disorders
https://www.readbyqxmd.com/read/27995531/effect-on-cognition-of-estroprogestins-combined-with-interferon-beta-in-multiple-sclerosis-analysis-of-secondary-outcomes-from-a-randomised-controlled-trial
#20
Laura De Giglio, Fabiana Marinelli, Valeria T Barletta, Veronica A Pagano, Floriana De Angelis, Fulvia Fanelli, Nikolaos Petsas, Patrizia Pantano, Valentina Tomassini, Carlo Pozzilli
INTRODUCTION: Cognitive impairment is a disabling symptom in multiple sclerosis (MS). While its management remains challenging, beneficial effects on cognition of interferon beta (IFN-β) have been reported and a positive effect from estroprogestins has been hypothesised, suggesting that the combination of the two medications in women with MS could offer a promising treatment strategy. OBJECTIVES: We investigated whether a combination of estroprogestins and IFN-β can improve cognition in women with MS...
December 19, 2016: CNS Drugs
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