Johanna Palmio

ORCID: 0000-0001-9704-0145
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About
Contact & Profiles
Research Areas
  • Muscle Physiology and Disorders
  • Cardiomyopathy and Myosin Studies
  • Genetic Neurodegenerative Diseases
  • Neurogenetic and Muscular Disorders Research
  • Amyotrophic Lateral Sclerosis Research
  • RNA Research and Splicing
  • Mitochondrial Function and Pathology
  • Nuclear Structure and Function
  • Epilepsy research and treatment
  • Inflammatory Myopathies and Dermatomyositis
  • Neurological diseases and metabolism
  • Neuroscience and Neuropharmacology Research
  • Ion channel regulation and function
  • Metabolism and Genetic Disorders
  • Hereditary Neurological Disorders
  • Myasthenia Gravis and Thymoma
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Genomics and Rare Diseases
  • Endoplasmic Reticulum Stress and Disease
  • Heat shock proteins research
  • S100 Proteins and Annexins
  • Cardiovascular Effects of Exercise
  • Cellular Mechanics and Interactions
  • Ubiquitin and proteasome pathways
  • Parkinson's Disease Mechanisms and Treatments

Tampere University Hospital
2015-2025

Tampere University
2016-2025

University of Helsinki
2012-2024

Vaasa Central Hospital
2015-2024

Helsinki University Hospital
2015-2024

Fimlab (Finland)
2015-2024

Kuopio University Hospital
2023-2024

University of Eastern Finland
2024

Finnish Medical Society Duodecim
2024

University of Turku
2019-2023

Autoantibodies to glutamic acid decarboxylase (GAD-A) are present in type 1 diabetes and stiff man syndrome (SMS), have also been reported cerebellar ataxia. Epilepsy was 4 of 19 patients with SMS GAD-A, implying that epilepsy sometimes is associated anti-GAD autoimmunity.The authors investigated the prevalence GAD-A therapy-resistant localization-related (n = 51) generalized 49) by a radiobinding assay. The positive samples were confirmed immunohistochemistry immunoblotting recombinant...

10.1212/wnl.55.1.46 article EN Neurology 2000-07-12

To report novel disease and pathology due to HSPB8 mutations in 2 families with autosomal dominant distal neuromuscular showing both myofibrillar rimmed vacuolar myopathy together neurogenic changes.We performed whole-exome sequencing (WES) tandem linkage analysis candidate gene approach as well targeted next-generation (tNGS) identify causative a motor neuropathy. Pathogenic variants familial segregation were confirmed using Sanger sequencing.WES tNGS identified heterozygous change...

10.1212/wnl.0000000000002324 article EN Neurology 2015-12-31

Description of 8 new ANO5 mutations and significant expansion the clinical phenotype spectrum associated with previously known unknown to improve diagnostic accuracy.DNA samples 101 patients in 95 kindreds at our quaternary referral center Finland, who had undetermined limb-girdle muscular dystrophy (LGMD), calf distal myopathy, or creatine kinase (CK) elevations more than 2,000 IU/L, were selected for genetic evaluation, findings retrospectively analyzed.A total 25 caused by 11 different...

10.1212/wnl.0b013e31824c4682 article EN Neurology 2012-03-08

Multisystem proteinopathy (MSP) involves disturbances of stress granule (SG) dynamics and autophagic protein degradation that underlie the pathogenesis a spectrum degenerative diseases affect muscle, brain, bone. Specifically, identical mutations in adaptor SQSTM1 can cause varied penetrance 4 distinct phenotypes: amyotrophic lateral sclerosis (ALS), frontotemporal dementia, Paget's disease bone, distal myopathy. It has been hypothesized clinical pleiotropy relates to additional genetic...

10.1172/jci97103 article EN Journal of Clinical Investigation 2018-02-18

Neurofilament light (NFL) is one of the proteins forming multimeric neuron-specific intermediate filaments, neurofilaments, which fill axonal cytoplasm, establish caliber growth, and provide structural support. Dominant missense mutations recessive nonsense in neurofilament gene (

10.3389/fcell.2021.820105 article EN cc-by Frontiers in Cell and Developmental Biology 2022-02-14
Riccardo Currò Natalia Dominik Stefano Facchini Elisa Vegezzi Roisin Sullivan and 95 more Valentina Galassi Deforie Gorka Fernández‐Eulate Andreas Traschütz Salvatore Rossi Matteo Garibaldi Mariusz Kwarciany Franco Taroni Alfredo Brusco Jean-Marc Good Francesca Cavalcanti Simon Hammans Gianina Ravenscroft Richard Roxburgh Inés Albájar Catherine Ashton Nick Beauchamp Sarah J. Beecroft Emilia Bellone José Berciano Petya Bogdanova‐Mihaylova Barbara Borroni Bernard Brais Enrico Bugiardini Catarina Falcão de Campos Aisling Carr Liam Carroll Francesca Castellani Tiziana Cavallaro Patrick F. Chinnery Silvia Colnaghi Giuseppe Cosentino Joana Damásio Soma Das Grazia Devigili Daniela Di Bella D J Dick Alexandra Dürr Amar El-Saddig Jennifer Faber Moreno Ferrarini Massimiliano Filosto Geraint Fuller Salvatore Gallone Chiara Gemelli Marina Grandis John Hardy Channa Hewamadduma Rita Horváth Vincent Huin Daniele Imperiale Pablo Iruzubieta Diego Kaski Andrew King Thomas Klockgether Müge Kovancılar Koç Kishore R. Kumar Thierry Küntzer Nigel G. Laing Matilde Laurá Timothy Lavin Peter Leigh Lea Leonardis Michael P. Lunn Stefania Magri Francesca Magrinelli Maria João Malaquias Michelangelo Mancuso Hadi Manji Sara Massucco John McConville Renato P. Munhoz Sara Nagy Alain Ndayisaba Andrea H. Németh Luiz Eduardo Novis Johanna Palmio Elena Pegoraro David Pellerin Benedetta Perrone Chiara Pisciotta James M. Polke Malcolm J. Proudfoot Laura Orsi Aleksandar Radunović Nilo Riva Aiko Robert Riccardo Ronco Elena Rossini Alexander M. Rossor Irmak Şahbaz Qais Sa’di Ettore Salsano Alessandro Salvalaggio Lucio Santoro Elisa Sarto

Abstract RFC1 disease, caused by biallelic repeat expansion in RFC1, is clinically heterogeneous terms of age onset, disease progression and phenotype. We investigated the role size influencing clinical variables disease. also assessed presence meiotic somatic instability repeat. In this study, we identified 553 patients carrying expansions measured 392 cases. Pearson’s coefficient was calculated to assess correlation between at onset. A Cox model with robust cluster standard errors adopted...

10.1093/brain/awad436 article EN cc-by Brain 2024-01-09

Experimental studies suggest increased cerebral production of inflammatory cytokines after prolonged seizures. Whether a single non-prolonged seizure in human patients is associated with activation cytokine network still unknown.We studied the levels interleukin-1beta (IL-1beta), interleukin-1 receptor antagonist (IL-1ra), interlukin-6 (IL-6) and soluble IL-6 receptors (sIL-6R Gp130) plasma seizures during video-EEG recordings chronic localization-related epilepsy.The IL-1ra were seizures,...

10.1111/j.1600-0404.2007.00882.x article EN Acta Neurologica Scandinavica 2007-09-01

Laing early onset distal myopathy and myosin storage are caused by mutations of slow skeletal/β-cardiac heavy chain encoded the gene MYH7, as is a common form familial hypertrophic/dilated cardiomyopathy. The mechanisms which different phenotypes produced in even same region gene, not known. To explore clinical spectrum pathobiology, we screened MYH7 88 patients from 21 previously unpublished families presenting with or generalized skeletal muscle weakness, without cardiac involvement....

10.1002/humu.22553 article EN Human Mutation 2014-03-25

Several patients with previously reported titin gene (TTN) mutations causing tibial muscular dystrophy (TMD) have more complex, severe, or unusual phenotypes. This study aimed to clarify the molecular cause of variant phenotypes in 8 7 European families.Clinical, histopathological, and muscle imaging data family members were reanalyzed. The protein was analyzed by Western blotting TTN reverse transcription polymerase chain reaction (RT-PCR) Sanger sequencing.Western showed pronounced...

10.1002/ana.24102 article EN Annals of Neurology 2014-01-07

<h3>Objective</h3> Several families with characteristic features of hereditary myopathy early respiratory failure (HMERF) have remained without genetic cause. This international study was initiated to clarify epidemiology and the underlying cause in these families, characterise phenotype our large cohort. <h3>Methods</h3> DNA samples all currently known HMERF molecular were obtained from 12 seven different countries. Clinical, histopathological muscle imaging data collected five biopsy made...

10.1136/jnnp-2013-304965 article EN Journal of Neurology Neurosurgery & Psychiatry 2013-04-19

Abstract Background The symptoms and their progression in amyotrophic lateral sclerosis (ALS) are typically studied after the diagnosis has been confirmed. However, many people with ALS already have severe dysarthria loss of adequate speech at time diagnosis. Speech‐and‐language therapy interventions should be targeted timely based on communicative need ALS. Aims To investigate how long natural will remain functional to identify changes persons Methods &amp; Procedures Altogether 30...

10.1111/1460-6984.12357 article EN International Journal of Language & Communication Disorders 2017-11-21

Sarcoglycanopathies comprise four subtypes of autosomal recessive limb-girdle muscular dystrophies (LGMDR3, LGMDR4, LGMDR5 and LGMDR6) that are caused, respectively, by mutations in the SGCA, SGCB, SGCG SGCD genes. In 2016, several clinicians involved diagnosis, management care patients with LGMDR3-6 created a European Sarcoglycanopathy Consortium. The aim present study was to determine clinical genetic spectrum large cohort sarcoglycanopathy Europe. This an observational retrospective...

10.1093/brain/awaa228 article EN Brain 2020-06-27

Nemaline myopathy (NM) is one of the most common non-dystrophic genetic muscle disorders. NM often associated with mutations in NEB gene. Even though exact NEB-NM pathophysiological mechanisms remain unclear, histological analyses patients' biopsies reveal unexplained accumulation glycogen and abnormally shaped mitochondria. Hence, aim present study was to define molecular cellular cascade events that would lead potential changes energetics NEB-NM. For that, we applied a wide range...

10.1186/s40478-022-01491-9 article EN cc-by Acta Neuropathologica Communications 2022-12-17

Objectives: Electroconvulsive therapy (ECT) is regarded as an effective treatment of drug-resistant depression, but its mechanism action mostly unknown. We have previously reported that epileptic seizures result in cerebral production cytokines, which are also reflected the plasma. In this study, we tested whether ECT associated with similar acute release cytokines. Methods: The plasma levels cytokines interleukin (IL) 1β, IL-1 receptor antagonist, and IL-6 were measured using enzyme-linked...

10.1097/yct.0b013e3181571abb article EN Journal of Ect 2008-03-01

Clinical and experimental studies have demonstrated that seizures can cause molecular cellular responses resulting in neuronal damage. At present, there are no valid tests for assessing organic damage to the brain associated with seizure. The aim of this study was investigate cerebrospinal fluid (CSF) plasma concentrations Ubiquitin carboxy-terminal hydrolase L1 (UCH-L1), a sensitive indicator acute injury neurons, patients tonic-clonic or partial secondarily generalized due various...

10.1186/1471-2377-12-85 article EN cc-by BMC Neurology 2012-08-29

Limb girdle muscular dystrophies are a large group of both dominantly and recessively inherited muscle diseases. LGMD1D is caused by mutated DNAJB6 the molecular pathogenesis mediated defective chaperonal function leading to impaired handling misfolded proteins which normally would be degraded. Here we aim clarify pathology in order facilitate diagnostic accuracy. After following six Finnish families, analysed 21 biopsies obtained from 15 patients at different time points after onset...

10.1186/s40478-016-0276-9 article EN cc-by Acta Neuropathologica Communications 2016-02-04

Hereditary myopathy with early respiratory failure (HMERF) is caused by titin A-band mutations in exon 344 and considered quite rare. Respiratory insufficiency an symptom. A collection of families patients muscle disease suggestive HMERF was clinically genetically studied. Altogether 12 new 19 affected diverse nationalities were Most the investigated using targeted next-generation sequencing; Sanger sequencing applied some available family members. Histological data MRI findings evaluated....

10.1007/s00415-019-09187-2 article EN cc-by Journal of Neurology 2019-01-21
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