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An association between small fiber neuropathy and primary Restless Legs Syndrome (RLS) is suggested since both of them share common characteristics. Our aim was to investigate the existence of autonomic neuropathy on the basis of autonomic tests. The patients and the age-matched controls were evaluated with Neuropathy Symptom Profile and Autonomic Symptom Profile, nerve conduction studies (NCS), and autonomic tests. Patients suffered from neuropathic and autonomic complaints obviously. There was no significant difference for NCS, heart rate variability tests, and sympathetic skin responses (SSRs) among patients and controls. Since both the NCSs and the autonomic tests were within normal, the complaints were considered to be the consequences of the problem in sensory integration due to the dysfunction of the caudal diencephalic A11 group, rather than a neuropathic process. The cardiac autonomic imbalance possibly emerges as a consequence of arousal periods prior to or during the Periodic Leg Movements (PLM) episodes during sleep, but not due to autonomic neuropathy.
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http://dx.doi.org/10.3109/00207454.2010.537413 | DOI Listing |
Neurology
October 2025
Montreal Neurological Institute-Hospital, McGill University, Montreal, Canada.
Background And Objectives: Years before diagnosis of Parkinson disease (PD), dementia with Lewy bodies (DLB), or multiple system atrophy (MSA), mild prodromal manifestations can be detected. Longitudinal follow-up of people with prodromal synucleinopathy, particularly idiopathic/isolated REM sleep behavior disorder (iRBD), enables in-depth clinical phenotyping of early disease, which could facilitate stratification for clinical trials, provide the definition of appropriate end points, or predict phenoconversion more precisely. The aim of this study was to update and expand on previous studies assessing clinical evolution from iRBD to clinically diagnosed disease, up to 14 years before diagnosis.
View Article and Find Full Text PDFRev Neurol
August 2025
Tecnologico de Monterrey, School of Medicine and Health Sciences, 64710 Monterrey, Nuevo León, Mexico.
Introduction: While there is a growing body of evidence indicating a potential connection between Parkinson's disease and diabetes mellitus, there is a lack of focus on investigating how diabetes correlates with the severity of both motor and non-motor symptoms in Parkinson's disease.
Objective: This study examined and contrasted both motor and non-motor symptoms in patients diagnosed with Parkinson's disease, stratified by the presence or absence of diabetes.
Methods: A total of 40 Parkinson's disease patients, divided into two groups (with and without diabetes), were assessed using various scales, including the Movement Disorders Society - Unified Parkinson's Disease Rating Scale, Scales for Outcomes in Parkinson's Disease - Autonomic Dysfunction and Non-Motor Symptoms, Beck Depression Inventory, Montreal Cognitive Assessment, and Parkinson's Disease Questionnaire-39.
Eur J Neurol
September 2025
Department of Neurology, Odense University Hospital, Odense, Denmark.
Background: Fibromyalgia (FM) is a complex chronic pain disorder characterized by widespread musculoskeletal pain and symptoms suggesting autonomic dysfunction. Small fiber neuropathy (SFN) has been described in a subgroup of patients. We aimed to explore the value of structured symptom assessment to identify patients with SFN or autonomic neuropathy.
View Article and Find Full Text PDFJ Am Heart Assoc
September 2025
Institute for Clinical Diabetology, German Diabetes Center Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf Düsseldorf Germany.
Background: We sought to investigate the association between circulating inflammatory and cardiovascular proteomics biomarkers and cardiac autonomic nervous dysfunction-sensitive heart rate variability indices.
Methods: Using the population-based KORA (Cooperative Health Research in the Region of Augsburg) cohort, 233 proteomics biomarkers were quantified in baseline plasma samples of 1389 individuals using proximity extension assay technology. Five heart rate variability indices (Rényi entropy of the histogram with order [α] 4, total power of the density spectra, SD of word sequence, SD of the short-term normal-to-normal interval variability, compression entropy) were assessed at baseline in 982 individuals and in 407 individuals at baseline and at 14-year follow-up.
Immunol Res
September 2025
Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Belisario Domínguez Sección XVI, Avenida Vasco de Quiroga 15, C.P. 14080, Tlalpan, Mexico City, Mexico.
We present six patients with dysautonomia secondary to primary Sjögren's disease (pSjD) and analyze the literature regarding this topic. Case series. Patients were retrospectively recruited from a tertiary center in Mexico from 2001 to 2022 and included if they met 2016 ACR/EULAR criteria for SjD.
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