Publications by authors named "Tellez N"

Objective: The diagnosis of secondary progressive multiple sclerosis (SPMS) is often established retrospectively leading to a delay in detection. This work presents a clinical care algorithm that aims to facilitate the recognition of the secondary progressive phase of the disease, analyzing its usefulness and the feasibility of its implementation in routine clinical practice.

Methods: The algorithm was developed in four phases: 1) choice of validated diagnostic tools for the detection of progression; 2) assessment of these tools based on experience of use, applicability, time consumed, perceived usefulness and suitability for a profile of a patient in transition to SPMS; 3) framework and final sequence of application; 4) feasibility evaluation through application in clinical practice.

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Background: Current literature and a real-world study suggest that diroximel fumarate (DRF) is safer than dimethyl fumarate (DMF) in the treatment of multiple sclerosis (MS). However, no real-world study to date has significantly addressed the efficacy of this treatment.

Objectives: This study aims to elucidate the safety, tolerability, and efficacy of DRF in a real-world setting, utilizing data from a Spanish national registry of patients commencing DRF therapy post-market introduction.

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Background: Data on the occurrence of cervical precancer and cancer among women living with HIV (WLHIV) in Latin American countries (LAC) are scarce and highly heterogeneous.

Methods: We conducted a systematic review summarizing data about the incidence/prevalence of invasive cervical cancer (CC) and high-grade precancerous lesions among WLHIV in LAC. Literature in PubMed and LILACS was searched.

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The XVI Post-ECTRIMS meeting was held in Seville on 20 and 21 October 2023, where expert neurologists in multiple sclerosis (MS) summarised the main new developments presented at the ECTRIMS 2023 congress, which took place in Milan from 11 to 13 October. The aim of this article is to summarise the content presented at the Post-ECTRIMS Meeting, in an article in two parts. This second part covers the health of women and elderly MS patients, new trends in the treatment of cognitive impairment, focusing particularly on meditation, neuroeducation and cognitive rehabilitation, and introduces the concept of fatigability, which has been used to a limited extent in MS.

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The XVI Post-ECTRIMS meeting took place in Seville on 20 and 21 October 2023. This meeting was attended by neurologists specialising in multiple sclerosis (MS) from Spain, who shared a summary of the most interesting innovations at the ECTRIMS congress, which had taken place in Milan the previous week. The aim of this article is to summarise new developments related to the pathogenesis, diagnosis and prognosis of MS.

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Article Synopsis
  • Resistance training (RT) is shown to be a beneficial non-drug treatment for multiple sclerosis (MS) patients, with this study focusing on high-intensity RT's effects on muscle and nerve health.
  • Eleven MS patients participated in an intervention study where they underwent 18 sessions of high-intensity RT over 6 weeks, with measures taken before and after for various physical and neurobiological markers.
  • The results revealed significant improvements in muscle mass, strength, and functional capacity, alongside a reduction in neurofilament light-chain levels, indicating RT's potential to reduce neurodegeneration in MS patients.
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  • The study explored how serum biomarkers (sNfL, sGFAP, sCHI3L1) could predict disability progression in patients with primary progressive multiple sclerosis (PPMS) using data from 141 patients across 18 European centers.
  • The researchers measured the biomarkers at the beginning of the study and tracked changes in disability over time using the Expanded Disability Status Scale (EDSS) at three intervals.
  • Results showed that all three biomarkers were linked to disability changes, but only sCHI3L1 was significant in non-inflammatory cases, suggesting it may be a more reliable predictor of progression in PPMS.
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Introduction: Teriflunomide is a once-daily oral immunomodulator approved for relapsing forms of multiple sclerosis (MS) or relapsing-remitting multiple sclerosis (RRMS; depending on the local label), based on extensive evidence from clinical trials and a real-world setting on efficacy, tolerability and patient-reported benefits. The TERICARE study assessed the impact of teriflunomide treatment over 2 years on health-related quality of life (HRQoL) and some of the most common and disabling symptoms of MS, such as fatigue and depression.

Methods: This prospective observational study in Spain included RRMS patients treated with teriflunomide for ≤ 4 weeks.

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Introduction And Aims: Nicolau syndrome, or embolia cutis medicamentosa, is a rare cutaneous complication of drug injection that has been rarely described in relation to medication used in multiple sclerosis.

Patients And Methods: We conducted a retrospective study of patients with Nicolau syndrome receiving self-injectable multiple sclerosis medication from 2010 to October 2022.

Results: From January 2010 to October 2022, 449 patients were followed up in our demyelinating pathology unit with self-injectable drugs - 317 with beta interferons and 132 with glatiramer acetate (GA).

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Introduction: On 4 and 5 November 2022, Madrid hosted the 15th edition of the Post-ECTRIMS Meeting, where neurologists specialised in multiple sclerosis outlined the latest developments presented at the 2022 ECTRIMS Congress, held in Amsterdam from 26 to 28 October.

Aim: To synthesise the content presented at the 15th edition of the Post-ECTRIMS Meeting, in an article broken down into two parts.

Development: This second part describes the new developments in terms of therapeutic strategies for escalation and de-escalation of disease-modifying therapies (DMT), when and in whom to initiate or switch to highly effective DMT, the definition of therapeutic failure, the possibility of treating radiologically isolated syndrome and the future of personalised treatment and precision medicine.

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Introduction: On 4 and 5 November 2022, Madrid hosted the 15th edition of the Post-ECTRIMS Meeting, where neurologists specialised in multiple sclerosis (MS) outlined the most relevant novelties presented at the 2022 ECTRIMS Congress, held in Amsterdam from 26 to 28 October.

Aim: To synthesise the content presented at the 15th edition of the Post-ECTRIMS Meeting, in an article broken down into two parts.

Development: In this first part, the initial events involved in the onset of MS, the role played by lymphocytes and the migration of immune system cells into the central nervous system are presented.

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Multiple sclerosis (MS) is a dysimmune and neurodegenerative disease of the central nervous system that continues to be one of the main causes of non-traumatic disability in young people despite the recent availability of highly effective drugs. Exercise-based interventions seem to have a positive impact on the course of the disease although pathophysiological mechanisms responsible for this benefit remain unclear. This is a longitudinal study to examine the effects of a short-term training program on neurofilament plasma levels, a biomarker of axonal destruction, measured using the ultrasensitive single molecule array (SiMoA).

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Direct lineage reprogramming of one somatic cell into another without transitioning through a progenitor stage has emerged as a strategy to generate clinically relevant cell types. One cell type of interest is the pancreatic insulin-producing β cell whose loss and/or dysfunction leads to diabetes. To date it has been possible to create β-like cells from related endodermal cell types by forcing the expression of developmental transcription factors, but not from more distant cell lineages like fibroblasts.

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Purpose: This retrospective cross-sectional, observational study aims to determine the correlation between demographic variables and nonsyndromic craniosynostosis.

Methods: A cross-sectional study was carried out. The inclusion criteria were nonsyndromic craniosynostosis and the exclusion criteria were patients who did not have complete records.

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Article Synopsis
  • Anti-IgLON5 disease is a newly identified neurological disorder characterized by autoimmunity and neurodegeneration, with a substantial prevalence of abnormal movements that have been largely overlooked.
  • In a study of 72 patients, 87% exhibited at least one movement disorder, with gait and balance issues being the most common, followed by chorea and bradykinesia.
  • The majority of patients experienced additional symptoms such as sleep disturbances, bulbar dysfunction, and cognitive impairment, and many showed significant improvement in movement disorders after receiving immunotherapy treatment.
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Introduction: For more than a decade, after the ECTRIMS Congress, Spain has hosted the Post-ECTRIMS meeting, where neurologists with expertise in multiple sclerosis (MS) meet to review the new developments presented at the ECTRIMS.

Aim: This article, published in two parts, summarises the presentations of the post-ECTRIMS meeting, held online on 16 and 17 October 2020.

Development: This second part highlights the importance of gender and age in understanding the pathology of the disease and optimising its management.

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Introduction: For more than a decade, following the ECTRIMS Congress, the Post-ECTRIMS Meeting has been held in Spain, where neurologists with expertise in multiple sclerosis (MS) from all over the country meet to review the most relevant latest developments presented at the ECTRIMS congress (on this occasion held together with ACTRIMS).

Aim: This article, published in two parts, summarises the presentations that took place at the Post-ECTRIMS Meeting, held online on 16 and 17 October 2020.

Development: This first part includes the latest results regarding the impact of the environment and lifestyle on risk of MS and its clinical course, and the role of epigenetics and genetic factors on these processes.

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  • The study aimed to assess the agreement between peripapillary retinal nerve fiber layer (pRNFL) and foveal thickness (FT) measurements using three different SD-OCT devices in multiple sclerosis (MS) patients and healthy controls.
  • Differences were noted in pRNFL and FT measurements between MS patients with a history of optic neuritis (ON) and those without, while healthy subjects showed similar results across devices.
  • The findings underscore the need for standardization in OCT measurements to ensure accurate assessment of MS and to establish reference values for healthy individuals.
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Virtual reality (VR) has emerged as a promising treatment approach in rehabilitation for patients with multiple sclerosis (MS) due to its potential to increase patient motivation and rehabilitation adherence. One of the key features for rehabilitation adherence is patient satisfaction with the VR rehabilitation (VRR) program, and information on user satisfaction and not only effectiveness is required to systematically include VRR in routine clinical practice. Given that information on patient satisfaction with VRR is scarce, the primary objective of this study is to assess long-term patient satisfaction with a novel VRR program.

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Purpose: There are currently nine monogenoidean species of Rhabdosynochus infecting the gill lamellae of wild and cultured centropomid fishes from tropical and subtropical waters of the western Atlantic and eastern Pacific Oceans. The purpose of the present study was to describe the morphological distinctiveness of two new species of Rhabdosynochus found on the cultured Centropomus viridis collected from floating cages from the Mexican eastern Tropical Pacific in 2018.

Methods: monogenoideans were fixed with 4-5% formalin solution, observed and measured as temporary or permanent mounts stained with Gomori's trichrome, and mounted in Canada balsam.

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  • The Post-ECTRIMS Meeting highlighted new research in multiple sclerosis, focusing on disease-modifying treatments, especially during pregnancy.
  • Recent phase 3 trials assessed the safety and efficacy of ponesimod and ofatumumab for relapsing-remitting multiple sclerosis, while also reviewing existing and experimental treatments for progressive forms.
  • There has been no significant progress in symptomatic treatments, but patients diagnosed recently show milder forms of the disease, possibly due to earlier diagnosis and more available treatments.
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Introduction: Like every year, after the ECTRIMS Congress, renowned Spanish neurologists who are experts in multiple sclerosis presented the main novelties in research in this field at the Post-ECTRIMS Meeting.

Aim: To summarise the content presented at the 12th edition of the Post-ECTRIMS Meeting, which took place in September 2019 in Sevilla and is presented in two parts.

Development: This first part addresses the latest studies on vitamin D deficiency and the discrepancies that currently exist regarding its treatment.

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Pancreatic beta cells have a significant remodeling capacity which plays an essential role in the maintenance of glucose homeostasis. Beta cell apoptosis, replication, size, dedifferentiation, and (neo)generation contribute to the beta cell mass regulation. However, the extent of their respective contribution varies significantly depending on the specific condition, and it is the balance among them that determines the eventual change in beta cell mass.

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Vitamin D deficiency has been associated with increased incidence of diabetes, both in humans and in animal models. In addition, an association between vitamin D receptor (VDR) gene polymorphisms and diabetes has also been described. However, the involvement of VDR in the development of diabetes, specifically in pancreatic β-cells, has not been elucidated yet.

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