João Henrique Fregadolli Ferreira

ORCID: 0000-0002-5226-8354
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About
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Research Areas
  • Genetics and Neurodevelopmental Disorders
  • Autoimmune Neurological Disorders and Treatments
  • Blood Pressure and Hypertension Studies
  • Sodium Intake and Health
  • Cerebral Venous Sinus Thrombosis
  • Advanced biosensing and bioanalysis techniques
  • Nutrition, Genetics, and Disease
  • Cellular transport and secretion
  • Genomic variations and chromosomal abnormalities
  • Dialysis and Renal Disease Management
  • Botulinum Toxin and Related Neurological Disorders
  • BRCA gene mutations in cancer
  • Plant Virus Research Studies
  • Chronic Kidney Disease and Diabetes
  • Stroke Rehabilitation and Recovery
  • Peripheral Neuropathies and Disorders
  • Vestibular and auditory disorders
  • Spatial Neglect and Hemispheric Dysfunction
  • Neurological and metabolic disorders
  • Polyomavirus and related diseases
  • Cytomegalovirus and herpesvirus research

Hospital Israelita Albert Einstein
2024

Pontifícia Universidade Católica do Paraná
2018

Hospital Erasto Gaertner
2018

A 30-year-old woman had 5 days of visual hallucinations, nystagmus, memory impairment and mutism. On examination, she was disorientated with reduced attention span, gaze-evoked paratonia abnormal frontal reflexes. Cerebrospinal fluid (CSF) showed 80 cells, protein 0.41 g/L glucose 3.2 mmol/L (plasma 5.0 mmol/L). MR scan the brain involvement limbic extra-limbic regions brainstem. Commercial cell-based assays were negative, but tissue-based neuropil staining, for anti-metabotropic glutamate...

10.1136/pn-2024-004089 article EN Practical Neurology 2024-02-29

Abstract Background Autoimmune encephalitis (AIE) is a group of inflammatory diseases characterized by the presence antibodies against neuronal and glial antigens, leading to subacute psychiatric symptoms, memory complaints, movement disorders. The patients are predominantly young, delays in treatment associated with worse prognosis. Objective With support Brazilian Academy Neurology (Academia Brasileira de Neurologia, ABN) Society Child (Sociedade Neurologia Infantil, SBNI), consensus on...

10.1055/s-0044-1788586 article EN cc-by Arquivos de Neuro-Psiquiatria 2024-07-01

ABSTRACT Introduction: The prevalence of chronic kidney disease (CKD) is increasing, with a potential impact in the risk acceleration dementia. association between glomerular filtration rate (eGFR) and cognitive performance was scarcely studied. aim this study to evaluate levels across different degrees function. Methods: We analyzed 240 outpatients nephrology service, classified according eGFR: Advanced (≤ 30ml/min/1.73m2), Moderate (30,1ml/min/1.73m2 ≤ 60ml/min/1.73m2), Mild CKD (>...

10.1590/2175-8239-jbn-2018-0067 article EN cc-by Brazilian Journal of Nephrology 2018-09-16

Objective: Genetic-related breast cancer has a tendency to manifest earlier and be more aggressive than sporadic cancer.There are few studies evaluating the prevalence incidence of hereditary ovarian (HBOC) among Brazilians.In order improve assistance, efforts characterize population at risk HBOC could help formulate locally designed guidelines.Methodology: Descriptive retrospective study in Hospital Erasto Gaertner's service Oncogenetics, Curitiba, state Paraná, Brazil.We included...

10.29289/2594539420180000359 article EN Mastology 2018-09-01

Context: Balint syndrome (BS), first described in 1909, has three core features: optic ataxia, oculomotor apraxia and simultanagnosia, been after various conditions amongst vascular, infectious, demyelinating degenerative diseases1 . It already reported concomitant with corticobasal (CBS)2 Case report: 59 year-old male without history of previous diseases presented behavior changes the last two years. He had a diagnosis “stroke” because frequent falls to left side difficulty using his hand...

10.5327/1516-3180.712 article EN cc-by Sao Paulo Medical Journal 2021-01-01

Context: Lacunar infarcts are small caused by occlusion of a single penetrating vessel, affecting mostly the basal ganglia, subcortical white matter and pons1. Around 20-30% patients may progress symptoms over hours to days, this presentation is associated with disability poor prognosis2. Case report: A 70-year-old man history smoking, hypertension previous right occipital stroke reported upper lip paresthesias since awakening. In 2-hours perioral region his hand were affected. After 3-hours...

10.5327/1516-3180.636 article EN cc-by Sao Paulo Medical Journal 2021-01-01

Introduction: Progressive multifocal leukoencephalopathy (PML) is an opportunistic infection caused by reactivation of JC virus in the central nervous system and important differential diagnosis patients with subacute focal neurologic deficits. Magnetic resonance imaging (MRI) most sensitive tool for detection early manifestations disease1 . Case Report: A 42-year-old woman a previous HIV infection, without treatment last two years, presented progressive headache, left hemiparesis,...

10.5327/1516-3180.690 article EN cc-by Sao Paulo Medical Journal 2021-01-01
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