156 results match your criteria: "IBMC-Institute for Molecular and Cell Biology[Affiliation]"

Short Communication: Restrictions in care following the COVID-19 pandemic severely impacted Machado-Joseph disease patients: a study in the Azores Islands, Portugal.

J Community Genet

July 2022

UnIGENe, IBMC - Institute for Molecular and Cell Biology, i3S - Instituto de Investigação E Inovação Em Saúde, Univ. Porto, Porto, Portugal.

This qualitative study describes how the restrictions imposed by the COVID-19 pandemic impacted on Machado-Joseph disease (MJD) patients and their care, in the island of São Miguel (the Azores, Portugal). In-person semi-structured interviews were conducted with 11 participants, including patients, family members, healthcare professionals, and care providers. Main findings highlighted the key role played by the local association in psychosocial and healthcare for MJD patients and families, and the adverse effects on their care following the onset of the COVID-19 pandemic.

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Short Communication: Restrictions in care following the COVID-19 pandemic severely impacted Machado-Joseph disease patients: a study in the Azores Islands, Portugal.

J Community Genet

August 2022

UnIGENe, IBMC - Institute for Molecular and Cell Biology, i3S - Instituto de Investigação E Inovação Em Saúde, Univ. Porto, Porto, Portugal.

This qualitative study describes how the restrictions imposed by the COVID-19 pandemic impacted on Machado-Joseph disease (MJD) patients and their care, in the island of São Miguel (the Azores, Portugal). In-person semi-structured interviews were conducted with 11 participants, including patients, family members, healthcare professionals, and care providers. Main findings highlighted the key role played by the local association in psychosocial and healthcare for MJD patients and families, and the adverse effects on their care following the onset of the COVID-19 pandemic.

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Temporomandibular disorders (TMD) and headache are complex. This study aims to assess the association between TMD, headache, and psychological dimensions such as psychological inflexibility and pain acceptance. The sample consisted of 120 participants following a non-probabilistic convenience sampling strategy through a direct invitation to the patients attending our facilities and their relatives ( = 61 diagnosed with headache, = 34 diagnosed with TMD-headache, = 25 control group).

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[Not Available].

Med Genet

June 2022

Universitätsklinik Jena, Friedrich Schiller Universität, Institut für Human Genetik, D-07740 Jena, Germany.

[This corrects the article DOI: 10.1515/medgen-2022-2116.].

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Background And Objectives: Older generations play relevant roles in the well-being of younger generations, namely by influencing their health management. Literature regarding the influence in families affected by highly incapacitating hereditary diseases, such as Huntington's disease (HD), however, is scarce. This study addresses the intergenerational flow of health-related roles, from older to younger generations in families with HD, that is, who plays what roles towards whom while considering age, gender, kinship and genetic status in both generations.

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Clinical and Genetic Characterization of Brazilian Patients with Ataxia and Oculomotor Apraxia.

Mov Disord

June 2022

Division of General Neurology and Ataxia Unit, Department of Neurology, Universidade Federal de São Paulo, Sao Paulo, SP, Brazil.

Background: Ataxia with oculomotor apraxia (AOA) is characterized by early-onset cerebellar ataxia associated with oculomotor apraxia. AOA1, AOA2, AOA3, and AOA4 subtypes may present pathogenic variants in APTX, SETX, PIK3R5, and PNKP genes, respectively. Mutations in XRCC1 have been found to cause autosomal recessive spinocerebellar ataxia-26 (SCAR26) now considered AOA5.

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Article Synopsis
  • Hereditary cerebellar ataxia (HCA) is a group of neurodegenerative disorders that cause problems with movement, speech, and balance, and this study aimed to identify the genetic causes in 19 families presumed to have autosomal recessive inheritance.
  • Researchers classified different clinical syndromes of HCA and found that the most common causal genes linked to spastic ataxia and other specific syndromes.
  • The study also identified new genetic variants, highlighted the importance of distinguishing between autosomal recessive and dominant forms, and suggested that impaired cytoskeleton function and DNA repair might be involved in these disorders.
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Article Synopsis
  • - Primary headache disorders (PHD), like migraines, show a strong link to temporomandibular disorders (TMD), indicating shared causes and patterns of facial pain, primarily influenced by genetics.
  • - A systematic review, following PRISMA guidelines, analyzed eight studies from 2015-2020 on the genetic connections between TMD and PHD, revealing that a specific gene is key in TMD, but no link to PHD was found.
  • - The review emphasizes the need to further explore the genetic roles of these disorders to identify promising therapy targets for better treatment options in the future.
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Return of genomic results does not motivate intent to participate in research for all: Perspectives across 22 countries.

Genet Med

May 2022

Engagement and Society, Wellcome Connecting Science, Wellcome Genome Campus, Cambridge, United Kingdom; The Faculty of Education, University of Cambridge, Cambridge, United Kingdom.

Purpose: The aim of this study was to determine how attitudes toward the return of genomic research results vary internationally.

Methods: We analyzed the "Your DNA, Your Say" online survey of public perspectives on genomic data sharing including responses from 36,268 individuals across 22 low-, middle-, and high-income countries, and these were gathered in 15 languages. We analyzed how participants responded when asked whether return of results (RoR) would motivate their decision to donate DNA or health data.

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Surgical resection with lymphadenectomy and perioperative chemotherapy is the universal mainstay for curative treatment of gastric cancer (GC) patients with locoregional disease. However, GC survival remains asymmetric in West- and East-world regions. We hypothesize that this asymmetry derives from differential clinical management.

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Monitoring the quality of genetic counselling is essential to ensure appropriate provision. This study describes the development and initial psychometric validation of a novel scale for genetic counselling quality evaluation by patients. A deductive approach was taken to formulate scale items.

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CD44v6 High Membranous Expression Is a Predictive Marker of Therapy Response in Gastric Cancer Patients.

Biomedicines

September 2021

i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal.

In gastric cancer (GC), biomarkers that define prognosis and predict treatment response remain scarce. We hypothesized that the extent of CD44v6 membranous tumor expression could predict prognosis and therapy response in GC patients. Two GC surgical cohorts, from Portugal and South Korea ( = 964), were characterized for the extension of CD44v6 membranous immuno-expression, clinicopathological features, patient survival, and therapy response.

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Rare occurrence of severe blindness and deafness in Friedreich ataxia: a case report.

Cerebellum Ataxias

July 2021

Department of Neurology, Hospital de Santo António, Centro Hospitalar Universitário do Porto, Largo do Professor Abel Salazar, 4099-001, Porto, Portugal.

Background: Friedreich ataxia is the most frequent hereditary ataxia worldwide. Subclinical visual and auditory involvement has been recognized in these patients, with co-occurrence of severe blindness and deafness being rare.

Case Report: We describe a patient, homozygous for a 873 GAA expansion in the FXN gene, whose first symptoms appeared by the age of 8.

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Female preponderance in genetic generalized epilepsies.

Seizure

October 2021

Neurology Department, Centro Hospitalar Universitário do Porto, Portugal; Biomedical Investigation Multidisciplinary Unit, Abel Salazar Biomedical Sciences Institute, University of Porto, Portugal.

Introduction: Epilepsy is more prevalent in men but Genetic Generalized Epilepsies (GGE) seem to be more common in women. A predominant maternal inheritance has been previously described in GGE. Our objective was to determine sex and inheritance patterns in a GGE population compared to mesial temporal lobe epilepsy with hippocampal sclerosis (MTLEHS).

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Background: Migraine is a multifactorial disorder that is more frequent (two to four times) in women than in men. In recent years, our research group has focused on the role of neurotransmitter release and its regulation. Neurexin (NRXN2) is one of the components of the synaptic vesicle machinery, responsible for connecting intracellular fusion proteins and synaptic vesicles.

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To conduct animal experiments, researchers must be competent to handle and perform interventions on living animals in compliance with regulations. Laboratory animal science training programmes and licensing bodies therefore need to be able to reliably ensure and certify the professional competence of researchers and technicians. This requires access to assessment strategies which can verify knowledge as well as capturing performative and behavioural dimensions of assessment.

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Demonstrating trustworthiness when collecting and sharing genomic data: public views across 22 countries.

Genome Med

May 2021

Society and Ethics Research Group, Wellcome Connecting Science, Wellcome Genome Campus, Cambridge, CB10 1SA, UK.

Background: Public trust is central to the collection of genomic and health data and the sustainability of genomic research. To merit trust, those involved in collecting and sharing data need to demonstrate they are trustworthy. However, it is unclear what measures are most likely to demonstrate this.

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This paper explores ways in which genetic risk foregrounds forms of responsibility while dealing with reproduction. We analyzed individual and family semi-structured interviews (n = 35) with people at-risk for or affected by transthyretin-related familial amyloid polyneuropathy (TTR-FAP) and Machado-Joseph disease (MJD), which are late-onset neurological diseases. Although generally considered as rare diseases, some areas in Portugal present the world's highest frequency for MJD and TTR-FAP.

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Role of older generations in the family's adjustment to Huntington disease.

J Community Genet

July 2021

Department of Education and Psychology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.

Genetic diseases are a family matter, requiring adjustment and management from the family system, particularly when the diagnosis is recent. Literature has evidenced the importance of the role of older relatives in families dealing with some genetic diseases; however, knowledge is scarce regarding rare incurable genetic disorders, such as Huntington disease. Therefore, this exploratory qualitative study aims at describing how adjustment to Huntington disease occurs, from a family perspective, considering the roles performed by older generations, in the Portuguese context.

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Transmission of malaria-causing parasites to and by the mosquito relies on active parasite migration and constitutes bottlenecks in the Plasmodium life cycle. Parasite adaption to the biochemically and physically different environments must hence be a key evolutionary driver for transmission efficiency. To probe how subtle but physiologically relevant changes in environmental elasticity impact parasite migration, we introduce 2D and 3D polyacrylamide gels to study ookinetes, the parasite forms emigrating from the mosquito blood meal and sporozoites, the forms transmitted to the vertebrate host.

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