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Objective: This study evaluates machine learning algorithms' effectiveness in classifying Parkinson's disease and Huntington's disease based on biomarker data obtained non-invasively from patients and healthy controls. Methods: Datasets containing biomarker data (x, y, and z values of accelerometers) from sensors were collected from Parkinson's disease, Huntington's disease patients, and healthy controls. An automatic selection model method was implemented for disease classification, using a unique Mexican database of human gait biomarkers, which we consider the only one of its kind. Random forest, random subspace method, and K-star algorithms were employed, with parameters optimized through an automated model selection. Results: The study achieved a 0.893 precision rate for Parkinson's disease and Huntington's disease using the random subspace method. The findings underscore the potential of machine learning techniques in medical diagnosis, particularly in neurological disorders. Conclusion: The automatic selection model method demonstrated efficacy in classifying Parkinson's disease and Huntington's disease based on non-invasive biomarker data. This research contributes to advancing non-invasive diagnostic approaches in neurological disorders, highlighting the significance of machine learning in healthcare.
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Background: Huntington's disease (HD) exerts significant impacts on individuals and families worldwide. Nevertheless, data on its economic burden in Brazil are scarce, revealing a critical gap in understanding the associated healthcare costs. Objective: This study was conducted at a tertiary neurology outpatient clinic in Brazil with the aim of assessing annual healthcare service utilization and associated costs for HD patients. Methods: We conducted a cross-sectional observational study involving 34 HD patients. A structured questionnaire was applied to collect data on direct medical costs (outpatient services, medications), non-medical direct costs (complementary therapies, mobility aids, home adaptations), and indirect costs (lost productivity, caregiver costs, government benefits) over one year. Results: Significant economic impacts were observed, with average annual direct medical costs of $4686.82 per HD patient. Non-medical direct and indirect costs increased the financial burden, highlighting extensive resource utilization beyond healthcare services. Thirty-three out of 34 HD patients were unemployed or retired, and 16 relied on government benefits, reflecting broader socioeconomic implications. Despite the dataset's limitations, it provides crucial insights into the economic impact of HD on patients and the Brazilian public health system. Conclusions: The findings underscore the urgent need for a more comprehensive evaluation of the costs to inform governmental policies related to HD. Future research is needed to expand the data pool and develop a nuanced understanding of the economic burdens of HD to help formulate effective healthcare strategies for patients.
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Efeitos Psicossociais da Doença , Custos de Cuidados de Saúde , Doença de Huntington , Humanos , Doença de Huntington/economia , Doença de Huntington/terapia , Brasil , Masculino , Feminino , Estudos Transversais , Pessoa de Meia-Idade , Custos de Cuidados de Saúde/estatística & dados numéricos , Adulto , Atenção Terciária à Saúde/economia , IdosoRESUMO
Several studies have compared the transcriptome across various brain regions in Huntington's disease (HD) gene-positive and neurologically normal individuals to identify potential differentially expressed genes (DEGs) that could be pharmaceutical or prognostic targets for HD. Despite adhering to technical recommendations for optimal RNA-Seq analysis, none of the genes identified as upregulated in these studies have yet demonstrated success as prognostic or therapeutic targets for HD. Earlier studies included samples from neurologically normal individuals older than the HD gene-positive group. Considering the gradual transcriptional changes induced by aging in the brain, we posited that utilizing samples from older controls could result in the misidentification of DEGs. To validate our hypothesis, we reanalyzed 146 samples from this study, accessible on the SRA database, and employed Propensity Score Matching (PSM) to create a "virtual" control group with a statistically comparable age distribution to the HD gene-positive group. Our study underscores the adverse impact of using neurologically normal individuals over 75 as controls in gene differential expression analysis, resulting in false positives and negatives. We conclusively demonstrate that using such old controls leads to the misidentification of DEGs, detrimentally affecting the discovery of potential pharmaceutical and prognostic markers. This underscores the pivotal role of considering the age of control samples in RNA-Seq analysis and emphasizes its inclusion in evaluating best practices for such investigations. Although our primary focus is HD, our findings suggest that judiciously selecting age-appropriate control samples can significantly improve best practices in differential expression analysis.
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INTRODUCTION: Huntington's disease (HD) is a hereditary condition caused by the expansion of the CAG trinucleotide in the huntingtin gene on chromosome 4, resulting in motor, cognitive, and psychiatric disorders that significantly impact patients' quality of life. Despite the lack of effective treatments for the disease, various surgical strategies have been explored to alleviate symptoms and slow its progression. METHODOLOGY: A comprehensive systematic literature review was conducted, including MeSH terms, yielding only 38 articles that were categorized based on the surgical procedure. The study aimed to describe the types of surgeries performed and their efficacy in HD patients. RESULTS: Deep brain stimulation (DBS) involved 41 predominantly male patients with bilateral implantation in the globus pallidus, showing a preoperative Unified Huntington's Disease Rating Scale (UHDRS) score of 60.25 ± 16.13 and a marked postoperative value of 48.54 ± 13.93 with a p < 0.018 at one year and p < 0.040 at three years. Patients experienced improvement in hyperkinesia but worsening of bradykinesia. Additionally, cell transplantation in 119 patients resulted in a lower preoperative UHDRS score of 34.61 ± 14.61 and a significant postoperative difference of 32.93 ± 15.87 (p < 0.016), respectively, in the first to third years of following. Some now, less used procedures were crucial for understanding brain function, such as pallidotomies in 3 patients, showing only a 25 % difference from their baseline. CONCLUSION: Despite advancements in technology, there is still no curative treatment, only palliative options. Promising treatments like trophic factor implantation offer new prospects for the future.
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Estimulação Encefálica Profunda , Doença de Huntington , Doença de Huntington/cirurgia , Doença de Huntington/terapia , Humanos , Procedimentos Neurocirúrgicos/métodosRESUMO
Interleukin-6 (IL-6) is a versatile cytokine crucial for immune response modulation, inflammation regulation, and various physiological processes in the body. Its wide-ranging functions underscore its importance in maintaining health. Dysregulated IL-6 is closely associated with many diseases, making it a key research and therapeutic target. Elevated IL-6 levels in the central nervous system worsen neuroinflammation in neurodegenerative diseases by activating microglia and astrocytes and releasing pro-inflammatory cytokines and neurotoxic molecules. Moreover, dysregulated IL-6 weakens the blood-brain barrier, exacerbating neuroinflammation and neuronal damage by allowing peripheral immune cells and inflammatory mediators to enter the brain. Mesenchymal stem cells (MSCs) show promise in modulating neuroinflammation by regulating IL-6 levels. They effectively suppress pro-inflammatory cytokines, including IL-6, while promoting anti-inflammatory factors. This therapeutic approach highlights the importance of targeting IL-6 and other inflammatory mediators to alleviate neuroinflammation and its adverse effects on neurological disorders. This review provides a comprehensive overview of IL-6's involvement in neurological disorders, examining endogenous IL-6 and IL-6 derived from MSCs. We explore IL-6's mechanisms affecting neuronal function, survival, and immune modulation in the central nervous system. Additionally, we discuss the potential of MSC-derived IL-6 in neuroregeneration and neuroprotection. By elucidating IL-6's interplay with neurological pathologies, this review offers insights into novel therapeutic strategies targeting IL-6 signaling pathways for neurological disorders.
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Interleucina-6 , Células-Tronco Mesenquimais , Animais , Humanos , Interleucina-6/metabolismo , Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais/imunologia , Células-Tronco Mesenquimais/metabolismo , Doenças do Sistema Nervoso/terapia , Doenças do Sistema Nervoso/imunologia , Doenças do Sistema Nervoso/metabolismo , Doenças Neuroinflamatórias/imunologia , Doenças Neuroinflamatórias/metabolismo , Doenças Neuroinflamatórias/terapia , Transdução de SinaisRESUMO
The astrocyte population, around 50% of human brain cells, plays a crucial role in maintaining the overall health and functionality of the central nervous system (CNS). Astrocytes are vital in orchestrating neuronal development by releasing synaptogenic molecules and eliminating excessive synapses. They also modulate neuronal excitability and contribute to CNS homeostasis, promoting neuronal survival by clearance of neurotransmitters, transporting metabolites, and secreting trophic factors. Astrocytes are highly heterogeneous and respond to CNS injuries and diseases through a process known as reactive astrogliosis, which can contribute to both inflammation and its resolution. Recent evidence has revealed remarkable alterations in astrocyte transcriptomes in response to several diseases, identifying at least two distinct phenotypes called A1 or neurotoxic and A2 or neuroprotective astrocytes. However, due to the vast heterogeneity of these cells, it is limited to classify them into only two phenotypes. This review explores the various physiological and pathophysiological roles, potential markers, and pathways that might be activated in different astrocytic phenotypes. Furthermore, we discuss the astrocyte heterogeneity in the main neurodegenerative diseases and identify potential therapeutic strategies. Understanding the underlying mechanisms in the differentiation and imbalance of the astrocytic population will allow the identification of specific biomarkers and timely therapeutic approaches in various neurodegenerative diseases.
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Astrócitos , Doenças Neurodegenerativas , Astrócitos/metabolismo , Astrócitos/patologia , Humanos , Doenças Neurodegenerativas/metabolismo , Doenças Neurodegenerativas/patologia , Animais , FenótipoRESUMO
The aging of populations is a global phenomenon that follows a possible increase in the incidence of neurodegenerative diseases. Alzheimer's, Parkinson's, Multiple Sclerosis, Amyotrophic Lateral Sclerosis, and Huntington's diseases are some neurodegenerative disorders that aging could initiate or aggravate. Recent research has indicated that intestinal microbiota dysbiosis can trigger metabolism and brain functioning, contributing to the etiopathogenesis of those neurodegenerative diseases. The intestinal microbiota and its metabolites show significant functions in various aspects, such as the immune system modulation (development and maturation), the maintenance of the intestinal barrier integrity, the modulation of neuromuscular functions in the intestine, and the facilitation of essential metabolic processes for both the microbiota and humans. The primary evidence supporting the connection between intestinal microbiota and its metabolites with neurodegenerative diseases are epidemiological observations and animal models experimentation. This paper reviews up-to-date evidence on the correlation between the microbiota-gut-brain axis and neurodegenerative diseases, with a specially focus on gut metabolites. Dysbiosis can increase inflammatory cytokines and bacterial metabolites, altering intestinal and blood-brain barrier permeability and causing neuroinflammation, thus facilitating the pathogenesis of neurodegenerative diseases. Clinical data supporting this evidence still needs to be improved. Most of the works found are descriptive and associated with the presence of phyla or species of bacteria with neurodegenerative diseases. Despite the limitations of recent research, the potential for elucidating clinical questions that have thus far eluded clarification within prevailing pathophysiological frameworks of health and disease is promising through investigation of the interplay between the host and microbiota.
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Eixo Encéfalo-Intestino , Disbiose , Microbioma Gastrointestinal , Doenças Neurodegenerativas , Humanos , Microbioma Gastrointestinal/fisiologia , Doenças Neurodegenerativas/metabolismo , Doenças Neurodegenerativas/microbiologia , Disbiose/metabolismo , Eixo Encéfalo-Intestino/fisiologia , Animais , Barreira Hematoencefálica/metabolismo , Encéfalo/metabolismoRESUMO
INTRODUCTION: Huntington's disease (HD) is a genetic neurodegenerative disorder with dominant inheritance. Our center in Mexico City has offered presymptomatic testing (PT) since 1995. OBJECTIVE: To describe the main clinical and demographic characteristics of at-risk HD individuals who applied to the PT program, the reasons for seeking it, and the molecular results. METHODS: A cross-sectional study was conducted with sociodemographic and clinical data of all PT applicants from 1995-2023. Reasons for seeking PT were assessed using a modified questionnaire. In addition, anxiety, and depressive symptoms before and after PT were evaluated with Beck's instruments; cognitive impairment (CI) was assessed with the Mini-Mental State Examination (MMSE) and molecular results. RESULTS: 214 people applied for PT (2.1% of the at-risk population identified in our center); 63% were women (mean age of 37.11 years). 204 (95.3%) were accepted and 190 received results. 70% indicated that the main reason for applying for PT was to inform their offspring about the risk of inheriting HD. Significant differences were observed in the reasons for seeking PT by age group. Although some subjects received treatment, Beck's instrument scores did not indicate special attention or pharmacological treatment. The MMSE showed probable CI in 20 subjects. Of those who received results, 37% were carriers of a full penetrance allele. CONCLUSION: Our center has the only formal PT program for HD in Mexico. The reasons for seeking PT are varied and age-related. Although PT is offered to all subjects at risk for HD, uptake remains low.
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Doença de Huntington , Humanos , Doença de Huntington/genética , Doença de Huntington/diagnóstico , Doença de Huntington/epidemiologia , Feminino , Masculino , Adulto , México/epidemiologia , Estudos Transversais , Pessoa de Meia-Idade , Testes Genéticos , Adulto JovemRESUMO
Background: People with Huntington's disease (HD) exhibit neurocognitive alterations throughout the disease, including deficits in social cognitive processes such as Theory of Mind (ToM). Objective: The aim is to identify methodologies and ToM instruments employed in HD, alongside relevant findings, within the scientific literature of the past two decades. Methods: We conducted a comprehensive search for relevant papers in the SCOPUS, PubMed, APA-PsyArticles, Web of Science, Redalyc, and SciELO databases. In the selection process, we specifically focused on studies that included individuals with a confirmed genetic status of HD and investigated ToM functioning in patients with and without motor symptoms. The systematic review followed the PRISMA protocol. Results: A total of 27 papers were selected for this systematic review, covering the period from 2003 to 2023. The findings consistently indicate that ToM is globally affected in patients with manifest motor symptoms. In individuals without motor symptoms, impairments are focused on the affective dimensions of ToM. Conclusions: Based on our analysis, affective ToM could be considered a potential biomarker for HD. Therefore, it is recommended that ToM assessment be included as part of neuropsychological evaluation protocols in clinical settings. Suchinclusion could aid in the identification of early stages of the disease and provide new opportunities for treatment, particularly with emerging drugs like antisense oligomers. The Prospero registration number for this review is CRD42020209769.
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Doença de Huntington , Teoria da Mente , Doença de Huntington/genética , Doença de Huntington/psicologia , HumanosRESUMO
The striatum, an essential component of the brain's motor and reward systems, plays a pivotal role in a wide array of cognitive processes. Its dysfunction is a hallmark of neurodegenerative diseases like Parkinson's disease (PD) and Huntington's disease (HD), leading to profound motor and cognitive deficits. These conditions are often related to excitotoxicity, primarily due to overactivation of NMDA receptors (NMDAR). In the synaptic cleft, glycine transporter type 1 (GlyT1) controls the glycine levels, a NMDAR co-agonist, which modulates NMDAR function. This research explored the neuroprotective potential of NFPS, a GlyT1 inhibitor, in murine models of striatal injury. Employing models of neurotoxicity induced by 6-hydroxydopamine (PD model) and quinolinic acid (HD model), we assessed the effectiveness of NFPS pre-treatment in maintaining the integrity of striatal neurons and averting neuronal degeneration. The results indicated that NFPS pre-treatment conferred significant neuroprotection, reducing neuronal degeneration, protecting dopaminergic neurons, and preserving dendritic spines within the striatum. Additionally, this pre-treatment notably mitigated motor impairments resulting from striatal damage. The study revealed that GlyT1 inhibition led to substantial changes in the ratios of NMDAR subunits GluN2A/GluN1 and GluN2B/GluN1, 24 h after NFPS treatment. These findings underscore the neuroprotective efficacy of GlyT1 inhibition, proposing it as a viable therapeutic strategy for striatum-related damage.
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Proteínas da Membrana Plasmática de Transporte de Glicina , Doença de Huntington , Camundongos , Animais , Proteínas da Membrana Plasmática de Transporte de Glicina/metabolismo , Sarcosina/farmacologia , Neuroproteção , Glicina/farmacologia , Corpo Estriado/metabolismo , Doença de Huntington/tratamento farmacológicoRESUMO
Neurodegenerative diseases are associated with diverse symptoms, both motor and mental. Genetic and environmental factors can trigger neurodegenerative diseases. Chemicals as pesticides are constantly used in agriculture and also domestically. In this regard, pyrethroids (PY), are a class of insecticides in which its main mechanism of action is through disruption of voltage-dependent sodium channels function in insects. However, in mammals, they can also induce oxidative stress and enzyme dysfunction. This review investigates the association between PY and neurodegenerative diseases as Alzheimer's, Huntington's, Parkinson's, Amyotrophic Lateral Sclerosis, and Autism in animal models and humans. Published works using specific and non-specific models for these diseases were selected. We showed a tendency toward the development and/or aggravating of these neurodegenerative diseases following exposure to PYs. In animal models, the biochemical mechanisms of the diseases and their interaction with the insecticides are more deeply investigated. Nonetheless, only a few studies considered the specific model for each type of disease to analyze the impacts of the exposure. The choice of a specific model during the research is an important step and our review highlights the knowledge gaps of PYs effects using these models reinforcing the importance of them during the design of the experiments.
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Inseticidas , Doenças Neurodegenerativas , Síndromes Neurotóxicas , Praguicidas , Piretrinas , Animais , Humanos , Piretrinas/toxicidade , Inseticidas/toxicidade , Doenças Neurodegenerativas/induzido quimicamente , Praguicidas/toxicidade , MamíferosRESUMO
Many emotions are generated within a medical consultation. These feelings are often shared among the doctor, patient, and family. In this piece, these emotions are explored as I describe them deeply during my first encounter with a Huntington's disease patient, bringing the challenges of the situation, mistakes, and the learning that emerged. Understanding the possible sentiments and how to balance these emotions may be essential to prepare the neurologist in training for the challenges inherent in treating a patient with a rare disease.
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Emoções , Doença de Huntington , Relações Médico-Paciente , Humanos , Doença de Huntington/psicologia , Doença de Huntington/terapiaRESUMO
The gene for Huntington's disease (HD) was discovered in 1993, after an international collaborative initiative that led researchers to remote regions of South America. It was the most remarkable milestone, since George Huntington's initial description. Through the phenomenological discussions led by Jean-Martin Charcot and Willian Osler, and finally Americo Negrette's reports, which served as the inspiration for the Venezuela Project led by Nancy Wexler, the journey toward discovering the Huntington's disease (HD) gene was marked by substantial efforts. This monumental achievement involved the analysis of more than 18,000 blood samples and gathered dozens of researchers in an integrated effort, enabling the mapping of the gene on chromosome 4 in 1983 and leading, a decade later, to the precise localization and identification of the HTT gene. The discovery of the HD mutation represented a pivotal moment in the field of genetics and neurology, significantly enhancing our understanding of the disease and creating opportunities for future treatments. The progress made and the knowledge gained during this journey catalyzed the development of many innovative molecular techniques that have advanced research in other medical conditions. In this article, the authors celebrate three decades of this memorable event, revisiting the historical aspects, providing insights into the techniques developed, and delving into the paths that ultimately led to the discovery of the HD gene. © 2024 International Parkinson and Movement Disorder Society.
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Doença de Huntington , Transtornos dos Movimentos , Humanos , Doença de Huntington/genética , Doença de Huntington/terapia , Mutação , Estudos de Associação GenéticaRESUMO
INTRODUCTION: Huntington disease (HD) is a hereditary neurodegenerative disorder. Thanks to predictive diagnosis, incipient clinical characteristics have been described in the prodromal phase. OBJECTIVE: To compare performance in cognitive tasks of carriers (HDC) and non-carriers (non-HDC) of the huntingtin gene and to analyse the variability in performance as a function of disease burden and proximity to the manifest stage (age of symptom onset). METHOD: A sample of 146 participants in a predictive diagnosis of HD programme were divided into the HDC (41.1%) and non-HDC groups (58.9%). Mathematical formulae were used to calculate disease burden and proximity to the manifest stage in the HDC group; these parameters were correlated with neuropsychological performance. RESULTS: Significant differences were observed between groups in performance on the Mini-Mental State Examination (MMSE), Stroop-B, Symbol-Digit Modalities Test (SDMT), and phonological fluency. In the HDC group, correlations were observed between disease burden and performance on the MMSE, Stroop-B, and SDMT. The group of patients close to the manifest stage scored lowest on the MMSE, Stroop-B, Stroop-C, SDMT, and semantic verbal fluency. According to the multivariate analysis of covariance, the MMSE effect shows statistically significant differences in disease burden and proximity to onset of symptoms. CONCLUSIONS: Members of the HDC group close to the manifest phase performed more poorly on tests assessing information processing speed and attention. Prefrontal cognitive dysfunction appears early, several years before the motor diagnosis of HD.
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Transtornos Cognitivos , Disfunção Cognitiva , Doença de Huntington , Humanos , Doença de Huntington/genética , Cognição , Efeitos Psicossociais da DoençaRESUMO
Huntington's disease (HD) is a progressive neurodegenerative disease characterized by neuropsychiatric disturbance, cognitive impairment, and locomotor dysfunction. In the early stage (chorea) of HD, expression of dopamine D2 receptors (D2R) is reduced, whereas dopamine (DA) levels are increased. Contrary, in the late stage (bradykinesia), DA levels and the expression of D2R and dopamine D1 receptors (D1R) are reduced. 3-Nitropropionic acid (3-NPA) is a toxin that may replicate HD behavioral phenotypes and biochemical aspects. This study assessed the neurotransmitter levels, dopamine receptor gene expression, and the effect of acute exposure to quinpirole (D2R agonist) and eticlopride (D2R antagonist) in an HD model induced by 3-NPA in adult zebrafish. Quinpirole and eticlopride were acutely applied by i.p. injection in adult zebrafish after chronic treatment of 3-NPA (60 mg/kg). 3-NPA treatment caused a reduction in DA, glutamate, and serotonin levels. Quinpirole reversed the bradykinesia and memory loss induced by 3-NPA. Together, these data showed that 3-NPA acts on the dopaminergic system and causes biochemical alterations similar to late-stage HD. These data reinforce the hypothesis that DA levels are linked with locomotor and memory deficits. Thus, these findings may suggest that the use of DA agonists could be a pharmacological strategy to improve the bradykinesia and memory deficits in the late-stage HD.
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Dopamina , Doenças Neurodegenerativas , Nitrocompostos , Propionatos , Salicilamidas , Animais , Dopamina/metabolismo , Quimpirol/farmacologia , Peixe-Zebra/metabolismo , Hipocinesia , Receptores de Dopamina D2/metabolismo , Agonistas de Dopamina/farmacologia , Transtornos da Memória/induzido quimicamente , Transtornos da Memória/tratamento farmacológico , Receptores de Dopamina D1/metabolismoRESUMO
Several studies have compared the transcriptome across various brain regions in Huntington’s disease (HD) gene-positive and neurologically normal individuals to identify potential differentially expressed genes (DEGs) that could be pharmaceutical or prognostic targets for HD. Despite adhering to technical recommendations for optimal RNA-Seq analysis, none of the genes identified as upregulated in these studies have yet demonstrated success as prognostic or therapeutic targets for HD. Earlier studies included samples from neurologically normal individuals older than the HD gene-positive group. Considering the gradual transcriptional changes induced by aging in the brain, we posited that utilizing samples from older controls could result in the misidentification of DEGs. To validate our hypothesis, we reanalyzed 146 samples from this study, accessible on the SRA database, and employed Propensity Score Matching (PSM) to create a “virtual” control group with a statistically comparable age distribution to the HD gene-positive group. Our study underscores the adverse impact of using neurologically normal individuals over 75 as controls in gene differential expression analysis, resulting in false positives and negatives. We conclusively demonstrate that using such old controls leads to the misidentification of DEGs, detrimentally affecting the discovery of potential pharmaceutical and prognostic markers. This underscores the pivotal role of considering the age of control samples in RNA-Seq analysis and emphasizes its inclusion in evaluating best practices for such investigations. Although our primary focus is HD, our findings suggest that judiciously selecting age-appropriate control samples can significantly improve best practices in differential expression analysis.
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ABSTRACT Huntington's disease (HD) is a neurodegenerative disorder, with dysphagia being a common symptom of the disease. Few studies established a relationship between neuromotor impairment and dysphagia. There is also a lack of described therapeutic approaches for dysphagia in HD. This study aimed to better understand the progression of neurological clinical aspects, instrumental swallowing and dysphagia management in four patients presented with HD in an outpatient follow-up setting. The longitudinal follow-up period was 36 to 43 months through neuroclinical assessments (Unified Huntington's Disease Rating Scale) and fiberoptic endoscopic swallowing evaluations. Case 1 - a moderate decline of independence with safe swallowing. Case 2 - a moderate motor impairment, safe swallowing and moderate dysphagia during follow-up. Case 3 - a longer disease duration and increased motor impairment associated with moderate/severe dysphagia. Case 4 - a longer disease duration, need of assistance to perform daily activities, severe dysphagia and palliative care, considering the family decision of exclusive oral feeding. This longitudinal study revealed that the progression of neuromotor damage was not directly related to dysphagia development. This case series demonstrates the importance of follow-up settings with instrumental swallowing evaluations and careful consideration of early palliative care for HD patients.
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ABSTRACT Huntington's disease (HD) is a hereditary, neurodegenerative disease characterized by motor, cognitive, and behavioral issues. As the disease progresses, people become dependent on their caregivers leading to a significant burden. There is a lack of effective neuropsychological intervention to support this population. Objective: To develop an online neuropsychological intervention and evaluate its effects in decreasing the HD caregiver burden. Methods: This qualitative pilot study was conducted online during the COVID-19 pandemic in Brazil. We selected a convenience sample of five informal caregivers of HD patients (mean 46.2 years old). At baseline, participants were assessed via an individual online neuropsychology interview/screening, covering demographic data. Subsequently, we conducted 20 online 90-minute sessions of the psychological consultation over 12 months. Each session was structured in three stages: 1) Welcoming; 2) Breathing and mindfulness practice; and 3) Discussion of themes about the group's needs based on the main complaints. A second intervention assessment was applied. Results: None of the caregivers were provided with details about HD at the time of diagnosis and later care. The necessity to care for a person with a rare genetic disease was added to caregivers' already-existing working routine and home services, causing a symptom of overload. After the neuropsychological intervention, all participants reported feeling less burdened by caring, improved self-care and conflict resolution with the person with HD through expanding behavioral repertoire focused on emotions and communication. Conclusion: Online neuropsychologic intervention can reduce the burden of HD caregivers. More comprehensive studies should investigate these findings.
RESUMO A doença de Huntington (DH) é hereditária e neurodegenerativa, caracterizada por problemas motores, cognitivos e comportamentais. À medida que avança, os pacientes dependem cada vez mais de cuidadores, gerando uma sobrecarga significativa. Há uma carência de intervenções neuropsicológicas eficazes para apoiar esta população. Objetivo: Desenvolver uma intervenção neuropsicológica online e avaliar seus efeitos na redução da sobrecarga do cuidador em DH. Métodos: Este estudo piloto qualitativo ocorreu online, durante a pandemia de COVID-19 no Brasil. Selecionamos uma amostra de conveniência de cinco cuidadores informais de pacientes com DH (média de 46,2 anos). Inicialmente, realizamos triagens neuropsicológicas online, abrangendo dados demográficos e entrevistas. Subsequentemente, conduzimos 20 sessões de 90 minutos ao longo de 12 meses, estruturadas em: 1) acolhimento, 2) prática de respiração e mindfulness e 3) discussão das necessidades do grupo com base nas principais queixas. Após a intervenção, realizamos uma segunda avaliação. Resultados: Constatamos que os cinco cuidadores não foram adequadamente educados pelos profissionais de saúde sobre a DH após o diagnóstico. A responsabilidade de cuidar da pessoa com DH foi agregada à sua rotina de trabalho e serviços domiciliares, ocasionando um sintoma de sobrecarga. Após a intervenção neuropsicológica online, todos os participantes relataram menos sobrecarga relacionada ao cuidado das pessoas com DH, melhoraram o autocuidado e a resolução de conflitos por meio da ampliação do repertório comportamental focado nas emoções e na comunicação. Conclusão: A intervenção neuropsicológica online pode diminuir a sobrecarga dos cuidadores em DH. Estudos mais abrangentes devem investigar esses resultados.
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RESUMO Objetivo: conhecer as práticas do cuidado às pessoas com doença de Huntington. Método: estudo qualitativo, que utilizou o referencial do Cuidado Centrado no Paciente e na Família, realizado com 20 familiares cuidadores de pessoas com Huntington. A coleta de dados ocorreu mediante entrevista semiestruturada, nos meses de fevereiro e março de 2022, via Google Meet, e após transcritas na íntegra foram submetidas à Análise de Conteúdo. Resultados: a prática de cuidado às pessoas com Huntington necessita de adaptações no ambiente, de reajuste na rotina e improvisação de instrumentos de auxílio. A dificuldade para obtenção do diagnóstico gera a proatividade do familiar em busca de conhecimento para melhorar as condições de cuidado. Conclusão: embora trate-se de uma doença rara, as ações de cuidado referidas são semelhantes àquelas realizadas para pessoas com outras doenças crônicas. Contudo, o reconhecimento das práticas de cuidado realizadas pelos familiares pode oferecer subsídios para o planejamento da assistência pelos enfermeiros.
ABSTRACT Objective: to learn about care practices for people with Huntington's disease. Method: a qualitative study using the Patient- and Family-Centered Care framework, carried out with 20 family caregivers of people with Huntington's disease. Data was collected through semi-structured interviews, in February and March 2022, via Google Meet, and after being transcribed in full, it was submitted to Content Analysis. Results: The practice of caring for people with Huntington's requires adapting to the environment, readjusting the routine, and improvising aids. The difficulty in obtaining a diagnosis makes family members proactive in their search for knowledge to improve care conditions. Conclusion: although this is a rare disease, the care actions mentioned are like those carried out for people with other chronic diseases. However, recognizing the care practices carried out by family members can help nurses plan their care.
RESUMEN Objetivo: conocer las prácticas de atención a las personas con enfermedad de Huntington. Método: estudio cualitativo utilizando el marco de Atención Centrada en el Paciente y la Familia, realizado con 20 cuidadores familiares de personas con enfermedad de Huntington. Los datos se recogieron mediante entrevistas semiestructuradas, en febrero y marzo de 2022, a través de Google Meet, y tras ser transcritos en su totalidad, se sometieron a Análisis de Contenido. Resultados: la práctica de la atención a las personas con Huntington requiere adaptar el ambiente, reajustar la rutina e improvisar ayudas. La dificultad en obtener un diagnóstico genera proactividad por parte de los familiares en la búsqueda de conocimientos para mejorar las condiciones de atención. Conclusión: aunque se trate de una enfermedad rara, las acciones de cuidado mencionadas son similares a las que se llevan a cabo para personas con otras enfermedades crónicas. No obstante, reconocer las prácticas de atención que llevan a cabo los familiares puede ayudar a las enfermeras a planificar su asistencia.