keyword
MENU ▼
Read by QxMD icon Read
search

Resting state

keyword
https://www.readbyqxmd.com/read/29244054/a-systematic-review-for-functional-neuroimaging-studies-of-cognitive-reserve-across-the-cognitive-aging-spectrum
#1
Mia Anthony, Feng Lin
Objective: Cognitive reserve has been proposed to explain the discrepancy between clinical symptoms and the effects of aging or Alzheimer's pathology. Functional magnetic resonance imaging (fMRI) may help elucidate how neural reserve and compensation delay cognitive decline and identify brain regions associated with cognitive reserve. This systematic review evaluated neural correlates of cognitive reserve via fMRI (resting-state and task-related) studies across the cognitive aging spectrum (i...
December 13, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/29243713/the-gdc-a-law-unto-itself
#2
M Armstrong, P Ward
The following two pieces are published here to help highlight the parlous state of affairs between the British Dental Association ([BDA] the dental profession) and its regulator, the General Dental Council (GDC). The first piece by Mick Armstrong details the background to one of the letters he sent to Mr William Moyes, Chair of the GDC and provides a link to rest of the lengthy correspondence. The second piece by BDA Chief Executive Peter Ward questions how autonomous the GDC can actually be under the law and asks whether such a body is in fact acting without the law...
December 15, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29243122/aberrant-baseline-brain-activity-in-psychogenic-erectile-dysfunction-patients-a-resting-state-fmri-study
#3
Chenwang Jin, Min Guan, Minghao Dong, Jia Wu, Zhen He, Xin Chen, Dapeng Shi, Junchan Ren, Guangming Shi, Xiangsheng Zhang
Recent neuroimaging studies have elucidated many interesting and promising findings on sexuality regarding the neural underpinnings of both normal and abnormal sexual processes. Psychogenic erectile dysfunction (pED) consists of a major part of male sexual dysfunction in China, but the understanding of the central mechanism of pED is still in its infancy. It is commonly appreciated that pED is a functional disorder, which can be attributed predominantly or exclusively to psychological factors, such as anxiety, depression, loss of self-esteem, and psychosocial stresses...
December 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29242278/ampk-in-skeletal-muscle-function-and-metabolism
#4
REVIEW
Rasmus Kjøbsted, Janne R Hingst, Joachim Fentz, Marc Foretz, Maria-Nieves Sanz, Christian Pehmøller, Michael Shum, André Marette, Remi Mounier, Jonas T Treebak, Jørgen F P Wojtaszewski, Benoit Viollet, Louise Lantier
Skeletal muscle possesses a remarkable ability to adapt to various physiologic conditions. AMPK is a sensor of intracellular energy status that maintains energy stores by fine-tuning anabolic and catabolic pathways. AMPK's role as an energy sensor is particularly critical in tissues displaying highly changeable energy turnover. Due to the drastic changes in energy demand that occur between the resting and exercising state, skeletal muscle is one such tissue. Here, we review the complex regulation of AMPK in skeletal muscle and its consequences on metabolism (e...
December 14, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29242103/the-neural-network-for-face-recognition-insights-from-an-fmri-study-on-developmental-prosopagnosia
#5
Yuanfang Zhao, Zonglei Zhen, Xiqin Liu, Yiying Song, Jia Liu
Face recognition is supported by collaborative work of multiple face-responsive regions in the brain. Based on findings from individuals with normal face recognition ability, a neural model has been proposed with the occipital face area (OFA), fusiform face area (FFA), and face-selective posterior superior temporal sulcus (pSTS) as the core face network (CFN) and the rest of the face-responsive regions as the extended face network (EFN). However, little is known about how these regions work collaboratively for face recognition in our daily life...
December 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/29240833/vagal-nerve-stimulation-triggers-widespread-responses-and-alters-large-scale-functional-connectivity-in-the-rat-brain
#6
Jiayue Cao, Kun-Han Lu, Terry L Powley, Zhongming Liu
Vagus nerve stimulation (VNS) is a therapy for epilepsy and depression. However, its efficacy varies and its mechanism remains unclear. Prior studies have used functional magnetic resonance imaging (fMRI) to map brain activations with VNS in human brains, but have reported inconsistent findings. The source of inconsistency is likely attributable to the complex temporal characteristics of VNS-evoked fMRI responses that cannot be fully explained by simplified response models in the conventional model-based analysis for activation mapping...
2017: PloS One
https://www.readbyqxmd.com/read/29240648/reliable-new-measures-capturing-low-frequency-fluctuations-from-resting-state-functional-mri
#7
Jae-Chang Kim, Sunghyon Kyeong
Resting-state functional MRI (rsfMRI) is one of the most important neuroimaging modalities for investigating alterations in the resting-state networks of the human brain, given that abnormal neural activity during the resting state is associated with neurological disorders. However, neuroimaging results obtained from rsfMRI have rarely been replicated with repeated measurements. Therefore, we aimed to develop new measures to extract highly reliable and reproducible functional neuroimaging metrics from rsfMRI data...
December 13, 2017: Neuroreport
https://www.readbyqxmd.com/read/29239977/increased-resting-state-brain-entropy-in-alzheimer-s-disease
#8
Shao-Wei Xue, Yonghu Guo
Entropy analysis of resting-state functional MRI (R-fMRI) is a novel approach to characterize brain temporal dynamics and facilitates the identification of abnormal brain activity caused by several disease conditions. However, Alzheimer's disease (AD)-related brain entropy mapping based on R-fMRI has not been assessed. Here, we measured the sample entropy and voxel-wise connectivity of the network degree centrality (DC) of the intrinsic brain activity acquired by R-fMRI in 26 patients with AD and 26 healthy controls...
December 12, 2017: Neuroreport
https://www.readbyqxmd.com/read/29239789/anterior-cingulate-volume-predicts-response-to-psychotherapy-and-functional-connectivity-with-the-inferior-parietal-cortex-in-major-depressive-disorder
#9
Fabio Sambataro, Nadja Doerig, Jürgen Hänggi, Robert Christian Wolf, Janis Brakowski, Martin Grosse Holtforth, Erich Seifritz, Simona Spinelli
In major depressive disorder (MDD), the anterior cingulate cortex (ACC) has been associated with clinical outcome as well as with antidepressant treatment response. Nonetheless, the association between individual differences in ACC structure and function and the response to cognitive behavioral therapy (CBT) is still unexplored. For this aim, twenty-five unmedicated patients with MDD were scanned with structural and resting state functional magnetic resonance imaging before the beginning of CBT treatment. ACC morphometry was correlated with clinical changes following psychotherapy...
November 24, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29237906/clinical-efficacy-of-preoperative-vaginal-intracavitary-irradiation-for-stage-ib2-and-iia-cervical-cancer
#10
Fengshuang Li, Yumei Wu, Weimin Kong, Jiandong Wang, Xia Hao, Juwei Niu, Laifu Bai
OBJECTIVE: The purpose of this study was to evaluate the clinical efficacy of preoperative vaginal intracavitary irradiation for Stage Ib2 and IIa cervical cancer. MATERIALS AND METHODS: From June 2008 to June 2014, data from 78 Stage Ib2 and IIa cervical cancer patients (age ≤75 years) with a diameter of local lesions >4 cm were collected in our hospital. Before treatment, all cases were confirmed by biopsy. The patients' general state was good, Karnofsky Performance Score ≥90, heart and lung functioning was normal, and patients were able to tolerate the surgery...
2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29237282/modulation-of-salience-network-intranetwork-resting-state-functional-connectivity-in-women-with-chronic-migraine
#11
X Michelle Androulakis, Chris Rorden, B Lee Peterlin, Kaitlin Krebs
Objective To investigate the intranetwork resting state fMRI connectivity within the Salience Network of chronic migraine with and without medication overuse headache. Methods We compared 351 pairs of intranetwork connectivity in chronic migraine (n = 13) and chronic migraine with medication overuse headache (n = 16) compared to matched controls, and between each chronic migraine subgroup. Results Compared to controls, 17 pairs of intranetwork connections in chronic migraine and 27 pairs in chronic migraine with medication overuse headache were decreased...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29237276/differential-effects-of-left-and-right-prefrontal-high-frequency-rtms-on-resting-state-fmri-in-healthy-individuals
#12
Renee S Schluter, Jochem M Jansen, Ruth J van Holst, Wim van den Brink, Anna E Goudriaan
High frequency repetitive transcranial magnetic stimulation (HF-rTMS) has gained great interest in multiple clinical and research fields and is believed to accomplish its effect by influencing neuronal networks. The dlPFC is frequently chosen as the cortical target for HF-rTMS. However very little is known about the differential effect of HF-rTMS over the left and right dlPFC on intrinsic functional connectivity networks in patients or in healthy individuals. The current study assessed the differential effects of left or right HF-rTMS (corrected for sham) on intrinsic Independent Component Analysis (ICA) defined functional connectivity networks in a sample of 45 healthy individuals...
December 14, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/29236974/diabetes-as-an-independent-predictor-of-left-ventricular-longitudinal-strain-reduction-at-rest-and-during-dobutamine-stress-test-in-patients-with-significant-coronary-artery-disease
#13
Karina Wierzbowska-Drabik, Ewa Trzos, Malgorzata Kurpesa, Tomasz Rechcinski, Dawid Miskowiec, Urszula Cieslik-Guerra, Barbara Uznanska-Loch, Maria Sobczak, Jaroslaw Damian Kasprzak
Aims: Diabetes (DM) is a strong cardiovascular risk factor modifying also the left ventricular (LV) function that may be objectively assessed with echocardiographic strain analysis. Although the impact of isolated DM on myocardial deformation has been already studied, few data concern diabetics with coronary artery disease (CAD), especially in all stages of dobutamine stress echocardiography (DSE). We compared LV systolic function during DSE in CAD with and without DM using state-of-the art speckle-tracking quantification and assessed the impact of DM on LV systolic strain...
December 9, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29236930/anophelines-species-and-the-receptivity-and-vulnerability-to-malaria-transmission-in-the-pantanal-wetlands-central-brazil
#14
Mariana Marinho-E-Silva, Maria Anice Mureb Sallum, Maria Goreti Rosa-Freitas, Ricardo Lourenço-de-Oliveira, Teresa Fernandes Silva-do-Nascimento
BACKGROUND Studies on malaria vectors in the Pantanal biome, Central Brazil, were conducted more than half a century ago. OBJECTIVES To update anopheline records and assess receptivity and vulnerability to malaria transmission. METHODS Five-day anopheline collections were conducted bimonthly in Salobra, Mato Grosso do Sul state, for one year. Indoors, mosquitoes were collected from their resting places, while in open fields, they were captured using protected human-baited and horse-baited traps near the house and at the Miranda River margin, respectively...
February 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29235506/differential-contributions-of-the-middle-frontal-gyrus-functional-connectivity-to-literacy-and-numeracy
#15
Maki S Koyama, David O'Connor, Zarrar Shehzad, Michael P Milham
Literacy and numeracy equally affect an individual's success in and beyond schools, but these two competencies tend to be separately examined, particularly in neuroimaging studies. The current resting-state fMRI study examined the neural correlates of literacy and numeracy in the same sample of healthy adults. We first used an exploratory "Multivariate Distance Matrix Regression" (MDMR) approach to examine intrinsic functional connectivity (iFC), highlighting the middle frontal gyrus (MFG) for both competencies...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29234958/the-relationship-between-putamen-sma-functional-connectivity-and-sensorimotor-abnormality-in-esrd-patients
#16
Dun Ding, Peng Li, Xue-Ying Ma, Wang-Huan Dun, Shi-Feng Yang, Shao-Hui Ma, Hong-Juan Liu, Ming Zhang
The basal ganglia (BG) are composed of several nuclei involved in neural processing associated with integration of sensory and motor information. Recent neuroimaging studies implicated its key role in control of voluntary motor function. As the sensorimotor abnormality is common among the end-stage renal disease (ESRD) population, in the current study, we aimed to investigate the abnormal structure and functional connectivity patterns of BG in ESRD patients. Twenty-nine ESRD and twenty-nine age and gender-matched healthy controls (HC) were enrolled to compare the volume of the subsets in the BG (e...
December 12, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29234091/structural-reorganization-of-the-early-visual-cortex-following-braille-training-in-sighted-adults
#17
Łukasz Bola, Katarzyna Siuda-Krzywicka, Małgorzata Paplińska, Ewa Sumera, Maria Zimmermann, Katarzyna Jednoróg, Artur Marchewka, Marcin Szwed
Training can induce cross-modal plasticity in the human cortex. A well-known example of this phenomenon is the recruitment of visual areas for tactile and auditory processing. It remains unclear to what extent such plasticity is associated with changes in anatomy. Here we enrolled 29 sighted adults into a nine-month tactile Braille-reading training, and used voxel-based morphometry and diffusion tensor imaging to describe the resulting anatomical changes. In addition, we collected resting-state fMRI data to relate these changes to functional connectivity between visual and somatosensory-motor cortices...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29233792/n-acetylcysteine-supplementation-increases-exercise-performance-and-reduces-oxidative-stress-only-in-individuals-with-low-levels-of-glutathione
#18
Vassilis Paschalis, Anastasios A Theodorou, Nikos V Margaritelis, Antonios Kyparos, Michalis G Nikolaidis
Most of the evidence indicates that chronic antioxidant supplementation induces negative effects in healthy individuals. However, it is currently unknown whether specific redox deficiencies exist and whether targeted antioxidant interventions in deficient individuals can induce positive effects. We hypothesized that the effectiveness of antioxidant supplements to decrease oxidative stress and promote exercise performance depends on the redox status of the individuals that receive the antioxidant treatment. To this aim, we investigated whether N-acetylcysteine (NAC) supplementation would enhance exercise performance by increasing glutathione concentration and by reducing oxidative stress only in individuals with low resting levels of glutathione...
December 9, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29232968/altered-cerebellar-functional-connectivity-in-remitted-bipolar-disorder-a-resting-state-functional-magnetic-resonance-imaging-study
#19
Ying Wang, Shuming Zhong, Guanmao Chen, Tao Liu, Lianping Zhao, Yao Sun, Yanbin Jia, Li Huang
OBJECTIVES: Several recent studies have reported a strong association between the cerebellar structural and functional abnormalities and psychiatric disorders. However, there are no studies to investigate possible changes in cerebellar functional connectivity in bipolar disorder. This study aimed to examine the whole-brain functional connectivity pattern of patients with remitted bipolar disorder II, in particular in the cerebellum. METHODS: A total of 25 patients with remitted bipolar disorder II and 25 controls underwent resting-state functional magnetic resonance imaging and neuropsychological tests...
December 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/29232965/structural-and-functional-changes-in-the-somatosensory-cortex-in-euthymic-females-with-bipolar-disorder
#20
Luciano Minuzzi, Sabrina K Syan, Mara Smith, Alexander Hall, Geoffrey Bc Hall, Benicio N Frey
OBJECTIVE: Current evidence from neuroimaging data suggests possible dysfunction of the fronto-striatal-limbic circuits in individuals with bipolar disorder. Somatosensory cortical function has been implicated in emotional recognition, risk-taking and affective responses through sensory modalities. This study investigates anatomy and function of the somatosensory cortex in euthymic bipolar women. METHODS: In total, 68 right-handed euthymic women (bipolar disorder = 32 and healthy controls = 36) between 16 and 45 years of age underwent high-resolution anatomical and functional magnetic resonance imaging during the mid-follicular menstrual phase...
December 1, 2017: Australian and New Zealand Journal of Psychiatry
keyword
keyword
9974
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"