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JOURNAL ARTICLE
Xiao-Na Ma, Wei Feng, Shu-Lin Chen, Xiao-Qin Zhong, Chang-Song Lin, Qiang Xu
INTRODUCTION: Recent studies have suggested a potential association between methotrexate use and an increased risk of dementia. However, the causal relationship between methotrexate and dementia remains unclear. This study aims to investigate the potential causal effect of methotrexate use on the risk of dementia using a two-sample Mendelian randomization (TSMR) approach. METHODS: We conducted a TSMR study using summary statistics from genome-wide association studies (GWAS) of methotrexate use and dementia...
April 9, 2024: Neurology and Therapy
#2
JOURNAL ARTICLE
Laura Mumoli, Giuseppe Magro, Emilio Le Piane, Domenico Bosco
BACKGROUND: ABGAs are historically associated with Encephalitis Lethargica (EL). Typically ABGAs are also found in children resulting in a variety of neuropsychiatric and extrapyramidal disorders, rare cases are reported in adults with atypical movement disorders. No description of basal ganglia reversible lesions related to ABGAs are reported and these antibodies are not included in the list of autoimmune encephalitis. METHODS AND RESULTS: A 55 years old female presented sub-acute onset of an anxious-depressive disorder and obsessive-compulsive behavior associated with intractable insomnia affecting sleep onset and sleep maintenance...
March 26, 2024: Sleep Medicine
#3
Xiaofeng Li, Yimin Chen, Le Zhang, Wei Zhang, Bin Li, José Fidel Baizabal-Carvallo, Xingwang Song
OBJECTIVE: We present the case of a patient with clinical and imaging features of sporadic Creutzfeldt-Jakob disease (sCJD) and positive IgLON5 antibodies (Abs) in the serum and CSF. CASE REPORT: A 66-year-old Chinese man presented to the hospital with a stroke-like episode, followed by rapidly progressive cognitive decline, mutism, and parkinsonism. The MRI results showed a cortical ribboning sign in diffusion-weighted MRI, periodic triphasic waves with a slow background in EEG, and positive protein 14-3-3 in CSF...
2024: Frontiers in Neurology
#4
JOURNAL ARTICLE
Carles Gaig, Lidia Sabater
PURPOSE OF REVIEW: Anti-IgLON5 disease is characterized by a distinctive sleep disorder, associated with a heterogeneous spectrum of neurological symptoms. Initial autopsies showed a novel neuronal tauopathy predominantly located in the tegmentum of the brainstem. Recently, new diagnostic red flags, biomarkers predictors of response to immunotherapy, and novel insights into the autoimmune pathogenesis of the disease have been reported. RECENT FINDINGS: Patients with diagnosis of neurodegenerative dementia, progressive supranuclear palsy (PSP) or with motor-neuron disease (MND)-like syndrome have been reported to have IgLON5 antibodies, which are the hallmark of anti-IgLON5 disease...
April 2, 2024: Current Opinion in Neurology
#5
Po-Chung Yu, Ching-Min Kuo, I-Chun Chen
We present a case involving a 60-year-old man with subacute delirium characterized by challenging attention shifts and obstinate behavior, contrasting with his usual mild-mannered personality. The patient developed pneumonia and a urinary tract infection following the onset of subacute delirium. Despite exhaustive investigations, the cause remained elusive until cerebrospinal fluid analysis revealed Tau positivity. Our overview suggests neurodegenerative diseases as the primary cause, rather than infectious or autoimmune factors...
2024: SAGE Open Medical Case Reports
#6
REVIEW
Viswanath Das, John H Miller, Charanraj Goud Alladi, Narendran Annadurai, Juan Bautista De Sanctis, Lenka Hrubá, Marián Hajdúch
As the world population ages, there will be an increasing need for effective therapies for aging-associated neurodegenerative disorders, which remain untreatable. Dementia due to Alzheimer's disease (AD) is one of the leading neurological diseases in the aging population. Current therapeutic approaches to treat this disorder are solely symptomatic, making the need for new molecular entities acting on the causes of the disease extremely urgent. One of the potential solutions is to use compounds that are already in the market...
March 26, 2024: Medicinal Research Reviews
#7
JOURNAL ARTICLE
Fukka You, Carole Nicco, Yoshiaki Harakawa, Toshikazu Yoshikawa, Haruhiko Inufusa
Systemic sclerosis (SSc) is an autoimmune disease characterized by systemic skin hardening, which combines Raynaud's phenomenon and other vascular disorders, skin and internal organ fibrosis, immune disorders, and a variety of other abnormalities. Symptoms vary widely among individuals, and personalized treatment is sought for each patient. Since there is no fundamental cure for SSc, it is designated as an intractable disease with patients receiving government subsidies for medical expenses in Japan. Oxidative stress (OS) has been reported to play an important role in the cause and symptoms of SSc...
March 6, 2024: International Journal of Molecular Sciences
#8
JOURNAL ARTICLE
G Hernández, J Sala-Padró, V Adell, I Rico, A Gasa-Roqué, F Morandeira, J Campdelacreu, J Gascon, M Falip
PURPOSE: To identify patients with adult-onset temporal lobe epilepsy (TLE) at risk of developing cognitive decline. Detecting which patients, aetiologies, or factors are most closely related with memory decline would allow us to identify patients that would eventually benefit from more specific treatment. METHODS: Single centre, retrospective analysis of a prospectively followed-up cohort study, including all patients with the diagnosis of adult-onset TLE during 2013, with a minimum follow-up of five years...
February 8, 2024: Clinical Neurology and Neurosurgery
#9
JOURNAL ARTICLE
Friederike A Arlt, Ramona Miske, Marie-Luise Machule, Peter Broegger Christensen, Swantje Mindorf, Bianca Teegen, Kathrin Borowski, Maria Buthut, Rosa Rößling, Elisa Sanchez-Sendin, Scott van Hoof, César Cordero-Gómez, Isabel Bünger, Helena Radbruch, Andrea Kraft, Ilya Ayzenberg, Jaqueline Klausewitz, Niels Hansen, Charles Timäus, Peter Körtvelyessy, Thomas Postert, Kirsten Baur-Seack, Constanze Rost, Robert Brunkhorst, Kathrin Doppler, Niklas Haigis, Gerhard Hamann, Albrecht Kunze, Alexandra Stützer, Matthias Maschke, Nico Melzer, Felix Rosenow, Kai Siebenbrodt, Christian Stenør, Martin Dichgans, Marios K Georgakis, Rong Fang, Gabor C Petzold, Michael Görtler, Inga Zerr, Silke Wunderlich, Ivan Mihaljevic, Paul Turko, Marianne Schmidt Ettrup, Emilie Buchholz, Helle Foverskov Rasmussen, Mahoor Nasouti, Ivan Talucci, Hans M Maric, Stefan H Heinemann, Matthias Endres, Lars Komorowski, Harald Prüss
BACKGROUND: Autoantibodies against the potassium voltage-gated channel subfamily A member 2 (KCNA2) have been described in a few cases of neuropsychiatric disorders, but their diagnostic and pathophysiological role is currently unknown, imposing challenges to medical practice. DESIGN / METHODS: We retrospectively collected comprehensive clinical and paraclinical data of 35 patients with KCNA2 IgG autoantibodies detected in cell-based and tissue-based assays. Patients' sera and cerebrospinal fluid (CSF) were used for characterization of the antigen, clinical-serological correlations, and determination of IgG subclasses...
February 1, 2024: Brain, Behavior, and Immunity
#10
REVIEW
Jose-Alberto Palma
PURPOSE: To review the available evidence on the impact of muscarinic receptor modulation on cardiovascular control in humans. METHODS: In this narrative Review we summarize data on cardiovascular endpoints from clinical trials of novel subtype-selective or quasi-selective muscarinic modulators, mostly PAMs, performed in the last decade. We also review the cardiovascular phenotype in recently described human genetic and autoimmune disorders affecting muscarinic receptors...
February 2, 2024: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
#11
JOURNAL ARTICLE
Francesco Limone, Alexander Couto, Jin-Yuan Wang, Yingying Zhang, Blake McCourt, Cerianne Huang, Adina Minkin, Marghi Jani, Sarah McNeer, James Keaney, Gaëlle Gillet, Rodrigo Lopez Gonzalez, Wendy A Goodman, Irena Kadiu, Kevin Eggan, Aaron Burberry
A mutation in C9ORF72 is the most common cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Patients with ALS or FTD often develop autoimmunity and inflammation that precedes or coincides with the onset of neurological symptoms, but the underlying mechanisms are poorly understood. Here, we knocked out murine C9orf72 in seven hematopoietic progenitor compartments by conditional mutagenesis and found that myeloid lineage C9orf72 prevents splenomegaly, loss of tolerance, and premature mortality...
January 31, 2024: Science Translational Medicine
#12
JOURNAL ARTICLE
Joana Lopes, Maria João Malaquias, Joana Freitas, Rodrigo Valido, Paula Carneiro, Esmeralda Neves, Ana Maria Moreira, Raquel Samões, Ernestina Santos, Ana Paula Correia
A Consensus of Psychoimmunology Experts (Pollak et al., 2019) established a set of red flags and proposed diagnostic criteria for psychosis of autoimmune origin (AIP). Previous studies on AIP are limited by the scarcity of CSF analysis, preventing the valorization of blood anti-neuronal antibodies (Ab). The aims of this study are to determine the relative frequency and characterize AIP in a cohort of psychotic patients that underwent CSF workup. This work is a retrospective study in a tertiary psychiatric hospital...
January 31, 2024: Immunologic Research
#13
JOURNAL ARTICLE
Qian Ding, Jennifer Lamberts, Alison M Konieczny, Tyler B Bringedahl, Kiara Y Torres Garcia
OBJECTIVES: Alzheimer's disease (AD) and/or dementia is a prevalent neurocognitive disorder primarily affecting individuals over the age of 65. Identifying specific causes of AD and/or dementia can be challenging, with emerging evidence suggesting a potential association with autoimmune inflammatory conditions such as rheumatoid arthritis (RA). This study aimed to assess the prevalence rate of AD and/or dementia among Medicare beneficiaries reporting an autoimmune disorder. Additionally, this study sought to identify the comparative prevalence of AD and/or dementia in patients with an autoimmune disorder who were using disease-modifying antirheumatic drugs (DMARDs) compared to those not using DMARDs...
January 26, 2024: Current Alzheimer Research
#14
Aimalohi Esechie, Neeharika Thottempudi, Chilvana Patel, Elena Shanina, Xiangping Li
Rapidly progressive dementia (RPD) is caused by a heterogeneous group of neurological disorders, and the prototype is Creutzfeldt-Jakob disease (CJD). However, treatable causes including autoimmune encephalitis are often underrecognized and undertreated. A 72-year-old female patient was admitted with a 10-month history of rapidly progressive cognitive decline, visual hallucinations, paranoid behavior, diarrhea, and an 18-kg unintentional weight loss. On the physical exam, she was only oriented to the person and demonstrated an exaggerated startle response with diffuse rigidity...
December 2023: Curēus
#15
JOURNAL ARTICLE
Ramasamy Thangavel, Harleen Kaur, Iuliia Dubova, Govindhasamy Pushphavathi Selvakumar, Mohammad Ejaz Ahmed, Sudhanshu P Raikwar, Raghav Govindarajan, Duraisamy Kempuraj
Parkinson's disease (PD) is the second most common progressive neurodegenerative disease characterized by the presence of dopaminergic neuronal loss and motor disorders. PD dementia (PDD) is a cognitive disorder that affects many PD patients. We have previously demonstrated the proinflammatory role of the glia maturation factor (GMF) in neuroinflammation and neurodegeneration in AD, PD, traumatic brain injury (TBI), and experimental autoimmune encephalomyelitis (EAE) in human brains and animal models. The purpose of this study was to investigate the expression of the GMF in the human PDD brain...
January 18, 2024: International Journal of Molecular Sciences
#16
JOURNAL ARTICLE
Denise Cerne, Mattia Losa, Pietro Mattioli, Anastasia Lechiara, Giacomo Rebella, Luca Roccatagliata, Dario Arnaldi, Angelo Schenone, Silvia Morbelli, Luana Benedetti, Federico Massa
In Dementia with Lewy bodies (DLB), rapid cognitive decline and seizures seldom complicate the typical clinical course. Nevertheless, concurrent, treatable conditions may be responsible. We report a case of DLB with superimposed anti-LGI1 encephalitis, emphasizing the importance of thorough diagnostic reasoning beyond the simplest explanation amid distinct clinical cues.
February 15, 2024: Journal of Neuroimmunology
#17
JOURNAL ARTICLE
Hannah Benedictine Maier, Jan Stadler, Stephanie Deest-Gaubatz, Francesca Borlak, Seda Nur Türker, Franz Felix Konen, Johanna Seifert, Cagla Kesen, Helge Frieling, Stefan Bleich, Daniel Lüdecke, Jürgen Gallinat, Niels Hansen, Jens Wiltfang, Thomas Skripuletz, Alexandra Neyazi
The analysis of cerebrospinal fluid (CSF) is an essential tool for the differential diagnosis of psychiatric disorders caused by autoimmune inflammation or infections. Clear guidelines for CSF analysis are limited and mainly available for schizophrenia and dementia. Thus, insights into CSF changes in psychiatric patients largely derive from research. We analyzed the clinical and CSF data of 564 psychiatric patients without pre-existing neurological diagnoses from March 1998 to April 2020. Primary aim was to detect previously undiagnosed neurological conditions as underlying cause for the psychiatric disorder...
March 2024: Psychiatry Research
#18
REVIEW
Xiaoxiao Zheng, Jingyao Yang, Yiwei Hou, Xinye Shi, Kangding Liu
Glial fibrillary acidic protein (GFAP), an intracellular type III intermediate filament protein, provides structural support and maintains the mechanical integrity of astrocytes. It is predominantly found in the astrocytes which are the most abundant subtypes of glial cells in the brain and spinal cord. As a marker protein of astrocytes, GFAP may exert a variety of physiological effects in neurological diseases. For example, previous published literatures showed that autoimmune GFAP astrocytopathy is an inflammatory disease of the central nervous system (CNS)...
January 12, 2024: European Journal of Medical Research
#19
REVIEW
Oskar McWilliam, Mathias H Gramkow, Morten Blaabjerg, Frederikke Kragh Clemmensen, Steen G Hasselbalch, Kristian Steen Frederiksen
BACKGROUND: Anti-IgLON5 disease is a rare but potentially reversible cause of cognitive impairment, sleep disturbances, dysautonomia, and movement disorders. It is an autoimmune encephalitis which, due to its insidious onset, could mimic neurodegenerative disorders, and multiple symptoms overlap with those seen in dementia with Lewy bodies (DLB). We hypothesized that the symptomatology and findings in patients with anti-IgLON5 disease overlapped with that of DLB. OBJECTIVES: To assess the commonality of features in anti-IgLON5 disease and DLB and identify potential red flags for anti-IgLON5 disease in patients undergoing diagnostic evaluation for DLB...
January 9, 2024: Journal of Neurology
#20
REVIEW
George Anderson
Alzheimer's disease is widely regarded as poorly treated due to poor conceptualization. For 40 years, Alzheimer's disease pathophysiology has focused on two culprits, amyloid-β induced plaques and hyperphosphorylated tau associated tangles, with no significant treatment advance. This is confounded by data showing amyloid-β to be an endogenous antimicrobial that is increased in a wide array of diverse medical conditions associated with heightened inflammation. This article reviews the wider bodies of data pertaining to Alzheimer's disease pathophysiology, highlighting the role of suppressed astrocyte mitochondrial function and mitochondrial melatonergic pathway as a core hub in driving neuronal loss in dementia...
December 28, 2023: Frontiers in Bioscience (Landmark Edition)
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