Publications by authors named "Pique J"

Background: The clinical course of myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD) is variable. However, robust markers of poor outcome and/or relapse risk are still missing.

Objective: To evaluate the frequency of cerebrospinal fluid-restricted oligoclonal bands (CSF-OCB) in a national cohort of adult MOGAD patients and to assess their prognostic value for the risk of relapse and severity.

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  • The study aimed to assess how paediatric myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) affects children's academic and cognitive performance.
  • It involved a review of 51 pediatric cases, revealing that 39.5% of patients required educational interventions, with average IQ scores lower than the general population.
  • The findings suggest that children with MOGAD often need additional academic support and should undergo cognitive assessments to help plan their educational needs.
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  • Wildlife tagging is important for understanding animal behavior and ecology, but the stress from this process can affect their movement and activity levels after being released.
  • An analysis of 1585 individuals from 42 mammal species showed that over 70% exhibited significant behavioral changes post-tagging, with herbivores traveling farther while omnivores and carnivores were less active initially.
  • Recovery from stress was generally quick, typically within 4-7 days, and animals in areas with a high human presence adapted faster, suggesting that tracking durations should be longer and consider species and location when designing studies.
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  • MOGAD (myelin oligodendrocyte glycoprotein antibody-associated disease) is a new autoimmune disorder, and this study aims to examine the long-term outcomes and factors affecting relapse in adult patients.
  • The research included 128 patients from a French cohort with a follow-up period averaging over 6.5 years; results showed that a significant portion experienced relapses, with specific onset symptoms such as optic neuritis and myelitis.
  • Findings indicated that starting maintenance treatment after the first attack is linked to lower relapse risk, with notable impact on patients' disability scores over time.
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Objective: This retrospective study aimed to describe a cohort of 38 pediatric patients with MOGAD and to investigate the clinical differences between patients with CSF-negativity and CSF-positivity for MOG-abs.

Methods: The clinical and laboratory characteristics of pediatric patients with MOGAD were retrospectively studied. Demographics, clinical characteristics, CSF analysis, treatments and prognosis of patients were recorded.

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Background: Epidemiological data reveal that 45% of persons with multiple sclerosis (PwMS) in France are more than 50 years. This population more than 50 is more susceptible to cancer, and this risk may be increased by frequent use of immunosuppressive drugs. Consequently, concerns have arisen about the potential increased risk of cancer in PwMS and how patients should be screened and managed in terms of cancer risk.

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Purpose: To evaluate the effectiveness of plasma exchange (PLEX) for optic neuritis (ON).

Methods: We conducted an international multicenter retrospective study evaluating the outcomes of ON following PLEX. Outcomes were compared to raw data from the Optic Neuritis Treatment Trial (ONTT) using a matched subset.

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Background: To characterise the response to treatment of inaugural optic neuritis (ON) in patients with myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD).

Methods: We searched the French MOGAD database for adults with inaugural ON with a detailed report of acute treatment modalities and measures of high-contrast best-corrected visual acuity (BCVA) at nadir and after 3 months. Predictors of visual outcomes were assessed by multivariable analysis.

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Background: In 2020, the French Multiple Sclerosis (MS) Society (SFSEP) decided to develop a national evidence-based consensus on pregnancy in MS. As neuromyelitis optica spectrum disorders (NMOSD) shares a series of commonalities with MS, but also some significant differences, specific recommendations had to be developed.

Objectives: To establish recommendations on pregnancy in women with NMOSD.

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Objective: The objective of this study was to develop evidence-based recommendations on pregnancy management for persons with multiple sclerosis (MS).

Background: MS typically affects young women in their childbearing years. Increasing evidence is available to inform questions raised by MS patients and health professionals about pregnancy issues.

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  • The study investigates COVID-19 serologic responses in cancer patients in Andorra, noting that their responses may be lower compared to the general population and can depend on tumor type and cancer treatments.
  • A total of 373 oncologic patients were analyzed, revealing an increase in seroprevalence from 13% to 19%, with notably lower rates in those with hematologic malignancies and those on biological therapies.
  • Women and tumor-free patients exhibited higher seroprevalence, with vaccination showing varying effectiveness: those vaccinated with ChAdOx1-S had a higher seroprevalence than those vaccinated with BNT162b2.
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Background And Objectives: Pure relapsing short myelitis with clinical and paraclinical features suggesting multiple sclerosis (MS) has been described recently. Here, we evaluated the existence of this potential new form of MS by retrospectively searching for similar cases in the databases of the French tertiary MS centers.

Methods: Patients were included based on the present criteria: at least 2 short (<3 vertebral segments) myelitis episodes; minimum follow-up of 3 years; no MS-like brain lesion during all the follow-up; tested negative for both anti-myelin oligodendrocyte glycoprotein and anti-aquaporin 4 antibodies in serum; presence of oligoclonal bands in CSF; and comprehensive workup to exclude alternative diagnoses.

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Importance: Recent studies suggest that maintenance intravenous immunoglobulin (IVIG) may be an effective treatment to prevent relapses in myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD); however, most of these studies had pediatric cohorts, and few studies have evaluated IVIG in adult patients.

Objective: To determine the association of maintenance IVIG with the prevention of disease relapse in a large adult cohort of patients with MOGAD.

Design, Setting, And Participants: This was a retrospective cohort study conducted from January 1, 2010, to October 31, 2021.

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The capercaillie Tetrao urogallus - the world's largest grouse- is a circumboreal forest species, which only two remaining populations in Spain: one in the Cantabrian mountains in the west and the other in the Pyrenees further east. Both have shown severe declines, especially in the Cantabrian population, which has recently been classified as "Critically Endangered". To develop management plans, information on demographic parameters is necessary to understand and forecast population dynamics.

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Introduction: Recent studies suggested that anti-CD20 and fingolimod may be associated with lower anti-spike protein-based immunoglobulin-G response following COVID-19 vaccination. We evaluated if COVID-19 occurred despite vaccination among patients with multiple sclerosis (MS) and neuromyelitis optica (NMO), using the COVISEP registry.

Case Series: We report 18 cases of COVID-19 after two doses of BNT162b2-vaccination, 13 of which treated with anti-CD20 and four with fingolimod.

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Background: Andorra is a small country located in the Pyrenees attracting millions of visitors for tourism, mostly associated with skiing, and nature-related activities. As its neighbouring countries, Spain and France, it has been heavily affected by the COVID-19 pandemic. We estimated SARS-CoV-2 seroprevalence in the entire country by universal serological testing under a lockdown environment.

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Background: Natalizumab is a very effective treatment of multiple sclerosis (MS). Failure is rare and should lead to consider some specific etiologies. The purpose of our study was to describe causes of subacute neurological events under natalizumab.

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Background And Objective: The prognosis in myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD) is a matter of debate. Our aim was to assess the long-term outcomes of patients with MOGAD.

Methods: We retrospectively analysed the clinical and paraclinical data of patients from the French nationwide observatory study NOMADMUS who tested positive for MOG antibodies (MOG-IgG) and who had clinical follow-up of at least 8 years from their first episode.

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Purpose: Despite high rates of COVID-19 infection and increased related mortality have been reported among older adults admitted in long-term care facilities, a limited amount of information is available about the natural course of this pandemic and prognostic factors in such population. In the current study, we aimed to investigate the epidemiologic, demographics, clinical, or therapeutic factors that may predict the prognosis in a cohort of COVID-19 infected institutionalized older in a nursing home.

Methods: We conducted a retrospective analysis of all COVID-19 confirmed institutionalized older in a nursing home from March 15 to June 5, 2020.

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Background: Outcomes of coronavirus disease 2019 (COVID-19) in patients with neuromyelitis optica spectrum disorders (NMOSD) or myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD), often treated with immunosuppressive therapies, are still unknown.

Methods: We conducted a multicenter, retrospective, observational cohort study among all French expert centers for neuromyelitis optica and related disorders. Patients with NMOSD or MOGAD included in the study received a confirmed or highly suspected diagnosis of COVID-19 between 1 March 2020 and 30 June 2020.

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Importance: Risk factors associated with the severity of coronavirus disease 2019 (COVID-19) in patients with multiple sclerosis (MS) are unknown. Disease-modifying therapies (DMTs) may modify the risk of developing a severe COVID-19 infection, beside identified risk factors such as age and comorbidities.

Objective: To describe the clinical characteristics and outcomes in patients with MS and COVID-19 and identify factors associated with COVID-19 severity.

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Importance: Risk of developing progressive multifocal leukoencephalopathy (PML) is the major barrier to using natalizumab for patients with multiple sclerosis (MS). To date, the association of risk stratification with PML incidence has not been evaluated.

Objective: To describe the temporal evolution of PML incidence in France before and after introduction of risk minimization recommendations in 2013.

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A dual frequency Ti: sapphire laser is presented in which two lines operate simultaneously with the same intensity on two TM longitudinal modes. This operation is obtained by means of the I molecules contained in an intra-cavity cell, pumped by a low-power laser. Its properties are interesting: the two lines lase simultaneously, they overlap spatially, their spectral width could be very narrow, their frequency is automatically locked to molecular frequencies and can serve as a frequency reference, the frequency difference is adjustable over the thousands of rotational or vibrational molecular energy gaps in the 0.

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