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https://www.readbyqxmd.com/read/29677161/fast-gpu-pcc-a-gpu-based-technique-to-compute-pairwise-pearson-s-correlation-coefficients-for-time-series-data-fmri-study
#1
Taban Eslami, Fahad Saeed
Functional magnetic resonance imaging (fMRI) is a non-invasive brain imaging technique, which has been regularly used for studying brain’s functional activities in the past few years. A very well-used measure for capturing functional associations in brain is Pearson’s correlation coefficient. Pearson’s correlation is widely used for constructing functional network and studying dynamic functional connectivity of the brain. These are useful measures for understanding the effects of brain disorders on connectivities among brain regions...
April 20, 2018: High-throughput
https://www.readbyqxmd.com/read/29676856/age-related-changes-in-cortical-and-subcortical-structures-of-healthy-adult-brains-a-surface-based-morphometry-study
#2
Fenglian Zheng, Yulin Liu, Zilong Yuan, Xiaodong Gao, Yaoyao He, Xiaojing Liu, Dong Cui, Rui Qi, Tiao Chen, Jianfeng Qiu
BACKGROUND: Cerebral structures in both cortical and subcortical regions change with aging. More specific and comprehensive studies are needed to better elucidate these changes. PURPOSE: To investigate the relationships between age and cerebral structures regarding cortical and subcortical changes. STUDY TYPE: Cross-cohort research. POPULATION: 54 healthy adults (28 females) aged 21-71 years. FIELD STRENGTH/SEQUENCE: T1 -weighted imaging was performed at 1...
April 20, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29676484/structural-and-metabolic-brain-correlates-of-apathy-in-huntington-s-disease
#3
Saul Martínez-Horta, Jesús Perez-Perez, Frederic Sampedro, Javier Pagonabarraga, Andrea Horta-Barba, Mar Carceller-Sindreu, Beatriz Gomez-Anson, Gloria Andrea Lozano-Martinez, Diego Alfonso Lopez-Mora, Valle Camacho, Alejandro Fernández-León, Ignasi Carrió, Jaime Kulisevsky
BACKGROUND: Apathy is the most prevalent and characteristic neuropsychiatric feature of Huntington's disease. Congruent with the main early pathological changes, apathy is primarily associated with subcortical damage in frontal-striatal circuits. However, little is known about its precise subserving mechanisms and the contribution of regions other than the basal ganglia. OBJECTIVES: We aimed to define the neural correlates of apathy in Huntington's disease based on gray matter volume and PET/CT of 18 F-fluorodeoxyglucose metabolism...
April 20, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29676371/methotrexate-associated-epstein-barr-virus-mucocutaneous-ulcer-a-case-report-and-review-of-literature
#4
Priyanka Yogendra Ravi, Elanthenral Sigamani, Yasir Jeelani, Marie Therese Manipadam
Epstein-Barr virus-positive mucocutaneous ulcer (EBVMCU) comprises part of the spectrum of B-cell lymphoproliferative disorders, reported in settings of immunosenescence and iatrogenic immunosuppression, affecting the oropharyngeal mucosa, skin, and gastrointestinal tract. We report a case of a 59-year-old female, known case of rheumatoid arthritis on methotrexate (MTX) for 15 years, who presented with an ulcer in the inner aspect of her cheek region for 2 years. Clinical examination revealed an infiltrative lesion involving the lower gingivobuccal sulcus of size 2 cm × 3 cm extending to the alveolus with level I lymph nodes, suspicious for carcinoma buccal mucosa...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29676348/branchiootorenal-syndrome-a-case-report
#5
Saheed Babatunde Nasir, Saadatu Jafar Ladan, Alfred Nicholas Bemu, Joshua Jibrin
Branchiootorenal syndrome is a rare autosomal dominant disorder characterised by branchial arch anomaly, hearing loss, renal anomalies and other otologic manifestations. We report a case of apparent de novo mutation that presented with hearing loss, branchial sinus and other manifestations of the disease. It is extremely rare in the West African region, and we suggest a high index of suspicion in a patient presenting with branchial sinus and/or hearing loss.
January 2018: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29676293/association-between-polymorphism-of-tumor-necrosis-factor-alpha-tnf%C3%AE-in-the-region-308-g-a-with-tinnitus-in-the-elderly-with-a-history-of-occupational-noise-exposure
#6
Luciana L M Marchiori, Ana C M Dias, Alyne S Gonçalvez, Regina C Poly-Frederico, Marcelo Y Doi
Context: Tinnitus is a common disorder that occurs frequently across all strata of population and has an important health concern and is often associated with different forms of the hearing loss of varying severity. Aims: To investigate the association between the polymorphism of tumor necrosis factor alpha (TNFα) in the region -308 G/A with the susceptibility to tinnitus in individuals with the history of exposure to occupational noise. Settings and Design: This was a cross-sectional study with a sample of 179 independent elderly people above 60 years of age...
March 2018: Noise & Health
https://www.readbyqxmd.com/read/29676289/natural-history-and-outcome-of-inflammatory-bowel-diseases-in-children-in-saudi-arabia-a-single-center-experience
#7
Khalid M Alreheili, Khalid A Alsaleem, Ali I Almehaidib
Background/Aim: Inflammatory bowel disease (IBD) is a chronic gastrointestinal disorder which includes ulcerative colitis (UC), Crohn's disease (CD), and indeterminate colitis (IC). The natural history of pediatric IBDs is poorly understood and generally unpredictable. We aim to study the natural history of IBD in Saudi children including the extraintestinal manifestations, changes in diagnosis, disease behavior, medical management, and surgical outcome. Patients and Methods: A retrospective review of all the charts of children less than 14 years of age who were diagnosed as IBD and followed up in King Faisal Specialist Hospital and Research Center (KFSH and RC) from January 2001 to December 2011 was performed...
April 18, 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/29676150/multifunctional-bilayer-template-for-near-infrared-sensitive-organic-solar-cells
#8
Hyungchae Kim, Han Gyeol Park, Min-Jae Maeng, Yu Ri Kang, Kyung Ryoul Park, Junho Choi, Yongsup Park, Young Dong Kim, Changsoon Kim
For organic solar cells (OSCs) based on non-planar phthalocyanines, it has previously been reported that a thin film composed of triclinic crystals with face-on (or flat-lying) oriented molecules, typically obtained with a CuI template layer, is desired for optical absorption in the near infrared (NIR) spectral region. However, this work demonstrates that for a PbPc-C60 donor-acceptor pair, less face-on orientation with a broader orientation distribution obtained with a new template layer consisting of a ZnPc/CuI bilayer is more desirable in terms of solar cell efficiency than the face-on orientation...
April 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29675203/lipid-biochemical-changes-detected-in-normal-appearing-white-matter-of-chronic-multiple-sclerosis-by-spectral-coherent-raman-imaging
#9
K W C Poon, C Brideau, R Klaver, G J Schenk, J J Geurts, P K Stys
Multiple sclerosis (MS) exhibits demyelination, inflammatory infiltration, axonal degeneration, and gliosis, affecting widespread regions of the central nervous system (CNS). While white matter MS lesions have been well characterized pathologically, evidence indicates that the MS brain may be globally altered, with subtle abnormalities found in grossly normal appearing white matter (NAWM). These subtle changes are difficult to investigate by common methods such as histochemical stains and conventional magnetic resonance imaging...
February 14, 2018: Chemical Science
https://www.readbyqxmd.com/read/29675082/susac-s-syndrome-retinocochleocerebral-vasculopathy-follow-up-of-a-pediatric-patient
#10
Zeynep Selen Karalok, Birce Dilge Taskin, Alev Guven, Cemile Atilgan Ucgul, Omer Faruk Aydin
Susac's syndrome (SS) is a triad of encephalopathy, branch retinal artery occlusion (BRAO), and sensorineural hearing loss as a result of microvascular occlusions of the brain, retina, and inner ear. It is also a disorder of autoimmune endotheliopathy. SS usually affects young women between the age of 20 and 40 years. SS can be misdiagnosed as multiple sclerosis (MS) or acute disseminated encephalomyelitis (ADEM) because of similar findings. A 15-year-old girl presented in June 2015 with vomiting and severe headache...
October 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29675078/novel-rab3gap1-mutations-causing-warburg-micro-syndrome-in-two-italian-sisters
#11
Pasquale Loiudice, Debora Napoli, Maria Cristina Ragone, Marco Nardi, Giamberto Casini
This report details two novel RAB3GAP1 mutations causing Warburg Micro syndrome, a rare autosomal recessive disorder characterized by multiple organ abnormalities involving the ocular, nervous, and endocrine systems. Two Italian sisters were referred to our department for the assessment of congenital bilateral cataracts. They also presented with microphthalmia, postnatal microcephaly, severe developmental delay, and hypotony. Perinatal investigations were negative for any toxins or infectious diseases during pregnancy, including toxoplasmosis, rubella, cytomegalovirus, and herpes virus...
October 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29674953/salm-lrfn-family-synaptic-adhesion-molecules
#12
REVIEW
Eunkyung Lie, Yan Li, Ryunhee Kim, Eunjoon Kim
Synaptic adhesion-like molecules (SALMs) are a family of cell adhesion molecules involved in regulating neuronal and synapse development that have also been implicated in diverse brain dysfunctions, including autism spectrum disorders (ASDs). SALMs, also known as leucine-rich repeat (LRR) and fibronectin III domain-containing (LRFN) proteins, were originally identified as a group of novel adhesion-like molecules that contain LRRs in the extracellular region as well as a PDZ domain-binding tail that couples to PSD-95, an abundant excitatory postsynaptic scaffolding protein...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29674776/-anxiety-depression-and-risk-consumption-of-alcohol-in-a-sample-of-university-students
#13
Omar Enzo Santangelo, Sandro Provenzano, Alberto Firenze
AIM: The university student is vulnerable to the adverse effects of many stress factors that can lead to depressive symptoms, anxiety and alcohol abuse, causing an increase in the burden of illness in young people. The aim of the study was to measure depressive symptoms, anxiety levels, and harmful alcohol consumption within the student population of the University of Palermo. METHODS: An online questionnaire was sent by e-mail to the 8500 students enrolled in the (ERSU) Regional Office for the Right to University Study's mailing list in Palermo...
March 2018: Rivista di Psichiatria
https://www.readbyqxmd.com/read/29674601/the-relationship-between-the-number-of-manic-episodes-and-oxidative-stress-indicators-in-bipolar-disorder
#14
Süleyman Akarsu, Abdullah Bolu, Emre Aydemir, Selma Bozkurt Zincir, Yasemin Gülcan Kurt, Serkan Zincir, Murat Erdem, Özcan Uzun
Objective: Bipolar disorder (BD) is a chronic mood disorder characterized by recurrent episodes that has a lifetime prevalence of 0.4- 5.5%. The neurochemical mechanism of BD is not fully understood. Oxidative stress in neurons causes lipid peroxidation in proteins associated with neuronal membranes and intracellular enzymes and it may lead to dysfunction in neurotransmitter reuptake and enzyme activities. These pathological processes are thought to occur in brain regions associated with affective functions and emotions in BD...
April 20, 2018: Psychiatry Investigation
https://www.readbyqxmd.com/read/29674594/paternally-inherited-cis-regulatory-structural-variants-are-associated-with-autism
#15
William M Brandler, Danny Antaki, Madhusudan Gujral, Morgan L Kleiber, Joe Whitney, Michelle S Maile, Oanh Hong, Timothy R Chapman, Shirley Tan, Prateek Tandon, Timothy Pang, Shih C Tang, Keith K Vaux, Yan Yang, Eoghan Harrington, Sissel Juul, Daniel J Turner, Bhooma Thiruvahindrapuram, Gaganjot Kaur, Zhuozhi Wang, Stephen F Kingsmore, Joseph G Gleeson, Denis Bisson, Boyko Kakaradov, Amalio Telenti, J Craig Venter, Roser Corominas, Claudio Toma, Bru Cormand, Isabel Rueda, Silvina Guijarro, Karen S Messer, Caroline M Nievergelt, Maria J Arranz, Eric Courchesne, Karen Pierce, Alysson R Muotri, Lilia M Iakoucheva, Amaia Hervas, Stephen W Scherer, Christina Corsello, Jonathan Sebat
The genetic basis of autism spectrum disorder (ASD) is known to consist of contributions from de novo mutations in variant-intolerant genes. We hypothesize that rare inherited structural variants in cis-regulatory elements (CRE-SVs) of these genes also contribute to ASD. We investigated this by assessing the evidence for natural selection and transmission distortion of CRE-SVs in whole genomes of 9274 subjects from 2600 families affected by ASD. In a discovery cohort of 829 families, structural variants were depleted within promoters and untranslated regions, and paternally inherited CRE-SVs were preferentially transmitted to affected offspring and not to their unaffected siblings...
April 20, 2018: Science
https://www.readbyqxmd.com/read/29674479/regionally-clustered-abcc8-polymorphisms-in-a-prospective-cohort-predict-cerebral-oedema-and-outcome-in-severe-traumatic-brain-injury
#16
Ruchira Menka Jha, Theresa A Koleck, Ava M Puccio, David O Okonkwo, Seo-Young Park, Benjamin E Zusman, Robert S B Clark, Lori A Shutter, Jessica S Wallisch, Philip E Empey, Patrick M Kochanek, Yvette P Conley
OBJECTIVE: ABCC8 encodes sulfonylurea receptor 1, a key regulatory protein of cerebral oedema in many neurological disorders including traumatic brain injury (TBI). Sulfonylurea-receptor-1 inhibition has been promising in ameliorating cerebral oedema in clinical trials. We evaluated whether ABCC8 tag single-nucleotide polymorphisms predicted oedema and outcome in TBI. METHODS: DNA was extracted from 485 prospectively enrolled patients with severe TBI. 410 were analysed after quality control...
April 19, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29674268/frequency-dependent-functional-connectivity-of-the-nucleus-accumbens-during-continuous-transcutaneous-vagus-nerve-stimulation-in-major-depressive-disorder
#17
Zengjian Wang, Jiliang Fang, Jun Liu, Peijing Rong, Kristen Jorgenson, Joel Park, Courtney Lang, Yang Hong, Bing Zhu, Jian Kong
Transcutaneous vagus nerve stimulation (tVNS) may be a promising treatment for major depressive disorder (MDD). In this exploratory study, fMRI scans were acquired during continuous real or sham tVNS from 41 MDD patients. Then, all patients received real or sham tVNS treatment for four weeks. We investigated the functional connectivity (FC) of the nucleus accumbens (NAc) at different frequency bands during real and sham tVNS and explored their associations with depressive symptom changes after one month of treatment...
December 28, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29673755/understanding-liver-regeneration-from-mechanisms-to-regenerative-medicine
#18
REVIEW
Hélène Gilgenkrantz, Alexandra Collin de l'Hortet
Liver regeneration is a complex and unique process. When two-thirds of a mouse liver is removed, the remaining liver recovers its initial weight in approximately 10 days. The understanding of the mechanisms responsible for liver regeneration may help patients needing large liver resections or transplantation and may be applied to the field of regenerative medicine. All differentiated hepatocytes are capable of self-renewal, but different subpopulations of hepatocytes seem to have distinct proliferative abilities...
April 16, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29673731/duplication-of-sox9-associated-with-46-xx-ovotesticular-disorder-of-sex-development
#19
Berenice López-Hernández, Juan Pablo Méndez, Ramón Mauricio Coral-Vázquez, Jesús Benítez-Granados, Juan Carlos Zenteno, Vanessa Villegas-Ruiz, Raúl Calzada-León, Daniela Soderlund, Patricia Canto
RESEARCH QUESTION: The purpose of the present study was to investigate whether ten unrelated SRY-negative individuals with this sex differentiation disorder presented a double dose of SOX9 as the cause of their disease. DESIGN: Ten unrelated SRY-negative 46,XX ovotesticular disorder of sexual development (DSD) subjects were molecularly studied. Multiplex-ligation dependent probe amplification (MLPA) and quantitative real-time PCR analysis (qRT-PCR) for SOX9 were performed...
April 4, 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29673625/abnormal-target-detection-and-novelty-processing-neural-response-in-posttraumatic-stress-disorder
#20
Pilar M Sanjuan, Chloe Andrews, Eric D Claus
Attention impairments are common symptoms of posttraumatic stress disorder (PTSD); however, the nature of these impairments remains elusive. Attention impairment may arise as the result of either excessive response to task-irrelevant stimuli or reduced response to task-relevant information. To test the association between PTSD and response to task-relevant and task-irrelevant stimuli, we used a 3-tone novelty auditory oddball task (AOD). We hypothesized that participants with PTSD relative to trauma controls would have less response during novelty processing in the dorsolateral prefrontal cortex (dlPFC) and the anterior cingulate cortex, as well as less response in the dlPFC and the orbitofrontal cortex during target detection...
April 16, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
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