Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
Orphanet J Rare Dis ; 19(1): 127, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38504253

RESUMO

BACKGROUND: Adrenoleukodystrophy (ALD) is a multifaceted, X-linked, neurodegenerative disorder that comprises several clinical phenotypes. ALD affects patients through a variety of physical, emotional, social, and other disease-specific factors that collectively contribute to disease burden. To facilitate clinical care and research, it is important to identify which symptoms are most common and relevant to individuals with any subtype of ALD. METHODS: We conducted semi-structured qualitative interviews and an international cross-sectional study to determine the most prevalent and important symptoms of ALD. Our study included adult participants with a diagnosis of ALD who were recruited from national and international patient registries. Responses were categorized by age, sex, disease phenotype, functional status, and other demographic and clinical features. RESULTS: Seventeen individuals with ALD participated in qualitative interviews, providing 1709 direct quotes regarding their symptomatic burden. One hundred and nine individuals participated in the cross-sectional survey study, which inquired about 182 unique symptoms representing 24 distinct symptomatic themes. The symptomatic themes with the highest prevalence in the overall ALD sample cohort were problems with balance (90.9%), limitations with mobility or walking (87.3%), fatigue (86.4%), and leg weakness (86.4%). The symptomatic themes with the highest impact scores (on a 0-4 scale with 4 being the most severe) were trouble getting around (2.35), leg weakness (2.25), and problems with balance (2.21). A higher prevalence of symptomatic themes was associated with functional disability, employment disruption, and speech impairment. CONCLUSIONS: There are many patient-relevant symptoms and themes that contribute to disease burden in individuals with ALD. These symptoms, identified by those having ALD, present key targets for further research and therapeutic development.


Assuntos
Adrenoleucodistrofia , Adulto , Humanos , Estudos Transversais , Adrenoleucodistrofia/diagnóstico , Fenótipo , Inquéritos e Questionários , Medidas de Resultados Relatados pelo Paciente
2.
J Rheumatol ; 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38224983

RESUMO

OBJECTIVE: To identify the frequency and relative importance of symptoms experienced by adults with fibromyalgia (FM) and determine factors associated with a higher disease burden. METHODS: We conducted semi-structured interviews with 15 participants with FM, collecting 1,479 quotes regarding the symptomatic burden of FM. We then performed an international cross-sectional study involving 1,085 participants with FM to determine the prevalence and relative importance (scale 0-4) of 149 symptoms representing 14 symptomatic themes. We performed subgroup analysis to determine how age, sex, disease duration, medication use, employment status, change in employment status, missing work due to FM, and ability level are related to symptomatic theme prevalence. RESULTS: The symptomatic themes with the highest prevalence in FM were pain (99.8%), muscle tenderness (99.8%), and fatigue (99.3%). The symptomatic themes that had the greatest impact on patients' lives related to fatigue (2.86), pain (2.84), muscle tenderness (2.79), and impaired sleep or daytime sleepiness (2.65). Symptomatic theme prevalence was most strongly associated with Modified Rankin Scale level of disability, disability status, and change in employment status (on disability versus not on disability). CONCLUSION: Participants with FM identify a variety of symptoms that significantly affect their daily lives. Many of these symptoms, such as fatigue, sleep disturbance, and activity limitation are life-altering and not related to traditional diagnostic criteria. Symptom prevalence in this population varies across subgroups based on demographic categories and disability status.

5.
IBRO Neurosci Rep ; 14: 77-79, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36618578

RESUMO

We explore a case of Benign Paroxysmal Positional Vertigo in the context of Persistent Hypoglossal Artery (PHA) and bilateral Madelung Deformity (MD). PHA is associated with a raft of major adverse cardiovascular events. MD can result from manifold conditions such as Turner's Syndrome and mesomelic dwarfism. In this case, the patient's positive family history of MD across generations is suggestive of inherited mutation in the Short Stature Homeobox (SHOX) Gene. We discuss the putative impact of SHOX on the genesis of Benign Paroxysmal Positional Vertigo (BPPV) in a patient with PHA and bilateral MD.

6.
Cureus ; 14(4): e23925, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35535285

RESUMO

Alexander the Great (356 BC - 323 BC) was only 20 years old when he was named the next King of Macedonia after his father was assassinated. The following 11 years witnessed the evolution of an outstanding leader who expanded his empire from Egypt to the Indian frontier. Despite successfully conquering much of the world, he was afflicted with a febrile illness at the age of 32, which he battled for a mere 11 days before perishing. It has been almost 2,400 years since his death, but the exact cause remains a mystery. Did he die of natural causes or at the hands of conspirators? Numerous papers have been written about the illnesses suffered by Alexander, with the current evidence revealing a healthy 32-year-old man who developed fever and acute abdominal pain with rapid deterioration of his general condition leading to death within a short duration. We analyze various theories and discuss possible etiologies that may have contributed to his tragic death. Information was gathered from primary and secondary sources found through searching multiple online academic databases and the University of Southern California (USC), University of California Los Angeles (UCLA), and Harvard libraries. Unreliable sources and the unavailability of Alexander's body for autopsy make reaching a definitive diagnosis an impossible task; however, based on existing information, we presume that he most probably died of a neurological cause due to acute necrotizing pancreatitis and encephalopathy secondary to peritonitis. Other potential causes include fulminant hepatic failure, acute demyelinating neuropathy or Guillain Barre Syndrome, and arsenic poisoning.

8.
Ann Clin Transl Neurol ; 7(11): 2320-2325, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33058507

RESUMO

Exome or genome sequencing was performed to identify the genetic etiology for the clinical presentation of global developmental delay, intellectual disability, and sensorimotor neuropathy with associated distal weakness in two unrelated families. A homozygous frameshift variant c.186delA (p.A63Qfs*3) in the NUDT2 gene was identified in cases 1 and 2 from one family and a third case from another family. Variants in NUDT2 were previously shown to cause intellectual disability, but here we expand the phenotype by demonstrating its association with distal upper and lower extremity weakness due to a sensorimotor polyneuropathy with demyelinating and/or axonal features.


Assuntos
Deficiências do Desenvolvimento/genética , Deficiência Intelectual/genética , Monoéster Fosfórico Hidrolases/genética , Polineuropatias/genética , Adulto , Criança , Deficiências do Desenvolvimento/diagnóstico , Eletroencefalografia , Eletromiografia , Feminino , Mutação da Fase de Leitura , Humanos , Deficiência Intelectual/diagnóstico , Imageamento por Ressonância Magnética , Masculino , Linhagem , Polineuropatias/diagnóstico , Sequenciamento do Exoma , Adulto Jovem
9.
Cureus ; 12(6): e8517, 2020 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-32665875

RESUMO

Charcot-Marie-Tooth neuropathy type 1 (CMT1) is an inherited demyelinating neuropathy characterized by distal muscle weakness and atrophy. Charcot-Marie-Tooth disease type 1C (CMT1C) is a rare form of CMT1 caused by mutations in the lipopolysaccharide-induced tumor necrosis factor (LITAF) or small integral membrane protein of the lysosome/late endosome (SIMPLE) gene. Phenotypically, CMT1C is characterized by sensory loss and slow conduction velocity, and is typically slowly progressive and often associated with pes cavus foot deformity and bilateral foot drop. A 42-year-old female presented with a 10-year history of slowly progressive bilateral calf pain and cramps. After multiple electromyography/nerve conduction studies (EMG/NCS) and genetic testing, the patient was revealed to have CMT1C with a heterozygous pathogenic variant, c.334G>A (p.Gly112Ser). However, the presentation of the patient's CMT1C phenotype was unusual compared to patients with similar diagnosis in a previous study, including a normal sensory exam with the exception of high arches and mildly reduced vibratory sense. Additionally, the patient's teenage son already started showing symptoms of CMT1C despite the fact that the onset of the disease typically occurs at an older age. This particular case further highlights the idea that the phenotype related to CMT1C may have a wide spectrum of disease severity.

11.
Iran J Neurol ; 18(1): 25-32, 2019 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-31316733

RESUMO

Iran is an ancient country, known as the cradle of civilization. The history of medicine in Iran goes back to the existence of a human in this country, divided into three periods: pre-Islamic, medieval, and modern period. There are records of different neurologic terms from the early period, while Zoroastrian (religious) prescription was mainly used until the foundation of the first medical center (Gondishapur). In the medieval period, with the conquest of Islam, prominent scientists were taught in Baghdad, like Avicenna, who referred to different neurologic diseases including stroke, paralysis, tremor, and meningitis. Several outstanding scientists developed the medical science of neurology in Iran, the work of whom has been used by other countries in the past and present. In the modern era, the Iranian Neurological Association was established with the efforts of Professor Jalal Barimani in 1991.

12.
Curr Aging Sci ; 12(1): 28-34, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31161982

RESUMO

BACKGROUND: Aging is a complex irreversible process that is not only related to an individual's genetic make-up but also to lifestyle choices and environmental exposures. Like every other structure in human body, the Neuromuscular Junction (NMJ) is not averse to aging. OBJECTIVES: The prime objective is to analyse the microscopic and macroscopic changes at the NMJs with aging. METHODS: For the purpose of review we evaluated data from resources like Pubmed, Ovid, UCLA libraries and USC libraries. RESULTS: We review various morphological, physiological, immunological, and biochemical changes in NMJs with aging and their management. CONCLUSION: The alterations in NMJs secondary to aging are inevitable. It is vital that neurologists clearly understand the pathophysiology of NMJ aging and differentiate between physiological and pathological effects of aging. With the current knowledge of science, the changes in NMJ aging can be better prevented rather than cured.


Assuntos
Envelhecimento/fisiologia , Avaliação Geriátrica/métodos , Junção Neuromuscular/fisiopatologia , Prevenção Primária , Sinapses/metabolismo , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Animais , Bases de Dados Factuais , Feminino , Seguimentos , Humanos , Masculino , Camundongos , Biologia Molecular , Medição de Risco
13.
J Clin Neurosci ; 66: 269-270, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31178302

RESUMO

Fragile X-associated tremor/ataxia syndrome (FXTAS) is a late onset neurodegenerative disorder associated with dysfunction of movement, memory, and the peripheral nervous system. We report an 82 years old male who presented with tremors and difficulty with balance that started at 65 years of age. His motor examination revealed decreased strength in left lower extremity. Tremors were seen in both the upper limbs at rest that worsened with movement. Bilateral lower extremities showed absent vibration and proprioception sensations, absent reflexes and upgoing toes. Electrodiagnostic studies revealed sensory predominant axonal sensory-motor peripheral polyneuropathy. Brain MRI revealed microvascular ischemic changes. The cervical and lumbar MRI showed diffuse degenerative changes. Genetic test for heritable causes of ataxia revealed a premutation in Fragile X gene (84 CGG repeats), confirming the diagnosis of FXTAS. On further genetic testing three out of his four daughters also tested positive for the FMR1 premutation. In appropriate clinical setting, Fragile X-associated tremor/ataxia syndrome (FXTAS) should be considered in every middle aged/elderly patient who presented with slowly progressive ataxia, tremor and peripheral polyneuropathy without any history of cognitive or neurological disabilities in childhood.


Assuntos
Ataxia/diagnóstico , Ataxia/genética , Proteína do X Frágil de Retardo Mental/genética , Síndrome do Cromossomo X Frágil/diagnóstico , Síndrome do Cromossomo X Frágil/genética , Tremor/diagnóstico , Tremor/genética , Idoso de 80 Anos ou mais , Testes Genéticos/métodos , Humanos , Masculino
14.
J Clin Neuromuscul Dis ; 20(4): 210-213, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31135625

RESUMO

GNE myopathy is an autosomal-recessive distal myopathy. It is caused by a hypomorphic GNE gene, encoding the rate-limiting enzyme in sialic acid synthesis. This myopathy is prevalent in the Iranian Jewish (IJ) descendants because of a founder mutation GNE: p. M712T. We report a 52-year-old IJ woman who presented with a 20-year history of progressive distal muscle weakness. Physical examination and magnetic resonance imaging revealed lower-extremity weakness and atrophy. Electromyography confirmed myopathy. Genetic testing showed no mutations on the GNE gene. Muscle histochemistry demonstrated no rimmed vacuoles. The analysis of polysialylated neural cell adhesion molecule Western blot pattern was negative. Non-GNE myopathy with quadriceps sparing presentation has been previously described in a few cases of non-IJ descents. To the best of our knowledge, this is the first case of an IJ patient, presenting with quadriceps sparing myopathy, without associated GNE mutations and/or tubule-filamentous inclusions.


Assuntos
Miopatias Distais/diagnóstico , Debilidade Muscular/fisiopatologia , Miopatias Distais/diagnóstico por imagem , Miopatias Distais/fisiopatologia , Feminino , Humanos , Irã (Geográfico) , Judeus , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Debilidade Muscular/diagnóstico por imagem , Mutação , Músculo Quadríceps/diagnóstico por imagem , Músculo Quadríceps/fisiopatologia
15.
Cureus ; 10(10): e3393, 2018 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-30533328

RESUMO

Sjögren's syndrome (SS) is a chronic autoimmune disorder, characterized by lymphocytic infiltration of exocrine glands and causing the decreased function of lacrimal and salivary glands. We describe a case of a 34-year-old male who presented with Sjögren's syndrome presenting as myopathy and sensorimotor neuropathy. His creatinine kinase levels were elevated with positive anti-Sjögren's syndrome-related antigen A autoantibodies and anti-Sjögren's syndrome Type B autoantibodies. Electromyography showed evidence of irritable myopathy. Parotid gland biopsy demonstrated focal lymphocytic sialadenitis. The patient favorably responded to high-dose steroids. Thus, although rare, inflammatory myopathy must be considered part of the initial presentation of Sjögren's syndrome.

16.
Neuropathology ; 38(6): 646-652, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30411412

RESUMO

Hydroxychloroquine (HCQ) and chloroquine are used worldwide for malaria as well as connective and rheumatological disorders. They have been reported to be linked to myopathy in patients. We report four patients who were receiving HCQ as part of treatment for connective tissue disorder and who presented with myopathy. The muscle biopsy in these patients was consistent with findings of HCQ toxicity. HCQ muscle toxicity is usually self-limiting after discontinuation of the drug. It also usually tends to be under-reported due to presence of various confounding factors. This warrants close monitoring and consideration of muscle biopsy as part of initial work up of patients who present with myopathy while receiving HCQ.


Assuntos
Antirreumáticos/efeitos adversos , Autofagia/efeitos dos fármacos , Hidroxicloroquina/efeitos adversos , Mitocôndrias/efeitos dos fármacos , Doenças Musculares/induzido quimicamente , Idoso , Doenças Autoimunes/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mitocôndrias/patologia
17.
Ann Indian Acad Neurol ; 21(2): 116-118, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30122835

RESUMO

The objective of this analysis is to study the life of Hans Gustav Wilhelm Steinert and his role in identifying several neurologic disorders including myotonic dystrophy (DM). DM type 1 (DM1) is a commonly inherited adult muscle disorder. In 1909, its characteristics were first described by Hans Steinert (1875-1911), a German neurologist. Born in Dresden, Germany, Steinert studied philosophy and medicine at the Universities of Leipzig, Berlin, Freiberg, and Kiel. There, under the supervision of Heinrich Curschmann, he accomplished his own works on aphthongia, cerebral muscular atrophy, and cerebral hemiplegia. In 1909, he published his study on six patients exhibiting characteristic myotonia. With autopsy findings of muscular fibrosis, Steinert identified this independent symptom complex as "Dystrophien Myotoniker" (DM). Overall, Steinert's accurate clinical characterization, coupled with the first ever autopsy finding of this condition, laid the foundations of our current understanding about DM1. This review serves as a tribute to the achievements of Hans Steinert and provides an opportunity to understand the historical perspective of DM1. Information for this analysis was gathered from PubMed and libraries at University of Southern California and University of California, Los Angeles. In addition, personal communications with Professor Benedikt Schoser at The University of Munich, Professor Tiemo Grimm at The University of Wuerzburg, and Professor Peter Harper at The University of Wales are acknowledged.

18.
J Stroke Cerebrovasc Dis ; 27(1): e9-e10, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29031496

RESUMO

OBJECTIVE: This study aimed to discuss a case of a patient with a known diagnosis of Parry-Romberg syndrome (PRS) presenting with ischemic stroke, the second such reported case. BACKGROUND: PRS is a rare genetic disorder with progressive hemifacial atrophy, which usually presents within the first 2 decades of life. Neurologic manifestations include trigeminal neuralgia with associated deafness, hemifacial pain with associated migraine headaches, seizures, movement disorders, and neuropsychiatric symptoms. Many patients have elevated antinuclear antibody (ANA) titers. However, stroke is uncommon. CASE DESCRIPTION: A 34-year-old right-handed woman, diagnosed with PRS at age 15, presented with right-sided weakness on waking up. Brain magnetic resonance imaging revealed a small infarct of the posterior limb of the left internal capsule. Vessel imaging revealed an aberrant right subclavian artery. Atrophy of the right-sided muscles of mastication is consistent with her known diagnosis of right-sided PRS. Stroke workup revealed a patent foramen ovale; however, no evidence of deep venous thrombosis was found. Hypercoagulability workup revealed an elevated ANA. The cause of stroke in this patient with PRS remains unclear, as she has no known risk factors. CONCLUSION: It is possible that elevated inflammatory markers associated with PRS may cause a proinflammatory state and predispose patients to small-vessel vasculopathy. It is important to note the association between PRS and ischemic stroke.


Assuntos
Isquemia Encefálica/etiologia , Hemiatrofia Facial/complicações , Acidente Vascular Cerebral/etiologia , Adulto , Isquemia Encefálica/diagnóstico , Hemiatrofia Facial/diagnóstico , Feminino , Humanos , Imageamento por Ressonância Magnética , Fatores de Risco , Acidente Vascular Cerebral/diagnóstico
19.
Cureus ; 10(12): e3703, 2018 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-30788192

RESUMO

Tuberculous granulomatous vasculitis is commonly associated with meningitis and retinitis. We describe a 39-year-old male, with a history of pulmonary tuberculosis (TB) who presented with progressive weakness, pain, tingling and numbness in the bilateral lower extremities. Significant atrophy and weakness of the lower extremities were evident along with absent reflexes. Nerve conduction studies and electromyography showed severe axonal polyneuropathy and denervation on the lower extremities. Nerve biopsy demonstrated small vessel leukocytoclastic vasculitis without any granuloma formation. Muscle biopsy was consistent with denervation and atrophy with target fiber changes. Tuberculosis-related vasculitis causing peripheral neuropathy is extremely rare and our case is unique in manifesting this presentation.

20.
Ayu ; 38(3-4): 108-112, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-30254388

RESUMO

BACKGROUND: The neural substrates of Yogic meditation are not well understood. Meditation is theorized to be a conscious mental process that induces a set of complex physiological changes within the areas of the brain termed as the "relaxation response." AIMS AND OBJECTIVE: Pilot data of a functional magnetic resonance imaging (fMRI) study is presented to observe and understand the selective activations of designated brain regions during meditation. MATERIAL AND METHODS: Four trained healthy Patanjali Yoga practitioners in their mid-60s participated in this prototype interventional study. A three-part 1-min block design alternating between meditation (test) and relaxation (control) phase with an imaginary visual fixation and auditory stimulation was used. RESULT AND OBSERVATION: The fMRI images revealed strong activation in the right prefrontal regions during the visual and auditory fixation meditation phases compared to no activations during the relaxation phase. A comparison between the visual and auditory fixations revealed shifts within the prefrontal and temporal regions. In addition, activation in occipital and temporal regions was observed during the meditation phase. Occipital lobe activation was more apparent during visual meditation phase. CONCLUSION: It is concluded that specific fMRI brain activations are observed during different forms of Yogic meditation (visual and auditory phases). Occipital and prefrontal activation could be modulating the known neurophysiological and biological effects of meditation.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...