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1.
medRxiv ; 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38826448

RESUMO

Bioactive fatty acid-derived oxylipin molecules play key roles in mediating inflammation and oxidative stress, which underlie many chronic diseases. Circulating levels of fatty acids and oxylipins are influenced by both environmental and genetic factors; characterizing the genetic architecture of bioactive lipids could yield new insights into underlying biological pathways. Thus, we performed a genome wide association study (GWAS) of n=81 fatty acids and oxylipins in n=11,584 Hispanic Community Health Study/Study of Latinos (HCHS/SOL) participants with genetic and lipidomic data measured at study baseline (58.6% female, mean age = 46.1 years, standard deviation = 13.8 years). Additionally, given the effects of central obesity on inflammation, we examined interactions with waist circumference using two-degree-of-freedom joint tests. Heritability estimates ranged from 0% to 47.9%, and 48 of the 81oxylipins and fatty acids were significantly heritable. Moreover, 40 (49.4%) of the 81 oxylipins and fatty acids had at least one genome-wide significant (p< 6.94E-11) variant resulting in 19 independent genetic loci involved in fatty acid and oxylipin synthesis, as well as downstream pathways. Four loci (lead variant minor allele frequency [MAF] range: 0.08-0.50), including the desaturase-encoding FADS and the OATP1B1 transporter protein-encoding SLCO1B1, exhibited associations with four or more fatty acids and oxylipins. The majority of the 15 remaining loci (87.5%) (lead variant MAF range = 0.03-0.45, mean = 0.23) were only associated with one oxylipin or fatty acid, demonstrating evidence of distinct genetic effects. Finally, while most loci identified in two-degree-of-freedom tests were previously identified in our main effects analyses, we also identified an additional rare variant (MAF = 0.002) near CARS2, a locus previously implicated in inflammation. Our analyses revealed shared and distinct genetic architecture underlying fatty acids and oxylipins, providing insights into genetic factors and motivating future multi-omics work to characterize these compounds and elucidate their roles in disease pathways.

2.
BMJ Open ; 14(4): e081106, 2024 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-38684256

RESUMO

OBJECTIVES: To examine inequalities in birth before arrival (BBA) at hospitals in South West England, understand which groups are most likely to experience BBA and how this relates to hypothermia and outcomes (phase A). To investigate opportunities to improve temperature management advice given by emergency medical services (EMS) call-handlers during emergency calls regarding BBA in the UK (phase B). DESIGN: A two-phase multimethod study. Phase A analysed anonymised data from hospital neonatal records between January 2018 and January 2021. Phase B analysed anonymised EMS call transcripts, followed by focus groups with National Health Service (NHS) staff and patients. SETTING: Six Hospital Trusts in South West England and two EMS providers (ambulance services) in South West and North East England. PARTICIPANTS: 18 multidisciplinary NHS staff and 22 members of the public who had experienced BBA in the UK. RESULTS: 35% (64/184) of babies conveyed to hospital were hypothermic on arrival. When compared with national data on all births in the South West, we found higher percentages of women with documented safeguarding concerns at booking, previous live births and 'late bookers' (booking their pregnancy >13 weeks gestation). These women may, therefore, be more likely to experience BBA. Preterm babies, babies to first-time mothers and babies born to mothers with disability or safeguarding concerns at booking were more likely to be hypothermic following BBA. Five main themes emerged from qualitative data on call-handler advice: (1) importance placed on neonatal temperature; (2) advice on where the baby should be placed following birth; (3) advice on how to keep the baby warm; (4) timing of temperature management advice and (5) clarity and priority of instructions. CONCLUSIONS: Findings identified factors associated with BBA and neonatal hypothermia following BBA. Improvements to EMS call-handler advice could reduce the number of babies arriving at hospital hypothermic.


Assuntos
Serviços Médicos de Emergência , Hipotermia , Humanos , Inglaterra , Hipotermia/terapia , Recém-Nascido , Feminino , Serviços Médicos de Emergência/estatística & dados numéricos , Gravidez , Adulto , Masculino , Grupos Focais
3.
Cells ; 12(16)2023 08 10.
Artigo em Inglês | MEDLINE | ID: mdl-37626853

RESUMO

HK2 and PKM2 are two main regulators of aerobic glycolysis. Photoreceptors (PRs) use aerobic glycolysis to produce the biomass necessary for the daily renewal of their outer segments. Previous work has shown that HK2 and PKM2 are important for the normal function and long-term survival of PRs but are dispensable for PR maturation, and their individual loss has opposing effects on PR survival during acute nutrient deprivation. We generated double conditional (dcKO) mice lacking HK2 and PKM2 expression in rod PRs. Western blotting, immunofluorescence, optical coherence tomography, and electroretinography were used to characterize the phenotype of dcKO animals. Targeted and stable isotope tracing metabolomics, qRT-PCR, and retinal oxygen consumption were performed. We show that dcKO animals displayed early shortening of PR inner/outer segments, followed by loss of PRs with aging, much more rapidly than either knockout alone without functional loss as measured by ERG. Significant alterations to central glucose metabolism were observed without any apparent changes to mitochondrial function, prior to PR degeneration. Finally, PR survival following experimental retinal detachment was unchanged in dcKO animals as compared to wild-type animals. These data suggest that HK2 and PKM2 have differing roles in promoting PR neuroprotection and identifying them has important implications for developing therapeutic options for combating PR loss during retinal disease.


Assuntos
Ciclo do Ácido Cítrico , Células Fotorreceptoras Retinianas Bastonetes , Animais , Camundongos , Metabolômica , Consumo de Oxigênio , Retina , Animais Selvagens
4.
Artigo em Inglês | MEDLINE | ID: mdl-36834220

RESUMO

Poor mental health affects nearly one billion people worldwide and can end in suicide if not treated. Unfortunately, stigma and a lack of mental healthcare providers are barriers to receiving needed care. We developed a Markov chain model to determine whether decreasing stigma or increasing available resources improves mental health outcomes. We mapped potential steps in the mental health care continuum with two discrete outcomes: getting better or committing suicide. Using a Markov chain model, we calculated probabilities of each outcome based on projected increases in seeking help or availability of professional resources. Modeling for a 12% increase in awareness of mental health concerns yielded a 0.39% reduction in suicide. A 12% increase in access to professional help yielded a 0.47% reduction in suicide rate. Our results show that expanding access to professional services has a higher impact on reducing suicide rates than creating awareness. Any intervention towards awareness or access positively impacts reducing suicide rates. However, increased access results in a higher reduction in suicide rates. We have made progress in increasing awareness. Awareness campaigns help to increase recognition of mental health needs. However, focusing efforts on increasing access to care may have a higher impact on reducing suicide rates.


Assuntos
Transtornos Mentais , Serviços de Saúde Mental , Suicídio , Humanos , Saúde Mental , Cadeias de Markov , Suicídio/psicologia , Estigma Social , Transtornos Mentais/terapia
5.
Neurologist ; 28(2): 87-93, 2023 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35593904

RESUMO

BACKGROUND: Idiopathic intracranial hypertension (IIH), a rare neurological disorder, has limited effective long-term treatments. Bariatric surgery has shown short-term promise as a management strategy, but long-term efficacy has not been evaluated. We investigated IIH-related outcomes 4 to 16 years postsurgery. MATERIALS AND METHODS: This cross-sectional retrospective cohort study included Intracranial Hypertension Registry (IHR) participants with existing medical records that completed a bariatric surgery questionnaire at least 4 years postsurgery. Two physicians independently evaluated the IIH disease course at bariatric surgery and at the time of the questionnaire using detailed medical records. Determinations of improvements were based on within-participant comparisons between the 2 time points. IIH-related outcomes were then combined with bariatric surgery information and outcomes to assess the relationship between weight loss and alterations in IIH. RESULTS: Among participants that underwent bariatric surgery and met study criteria (n=30) the median body mass index (BMI) at the time of surgery was 45.0 [interquartile range (IQR): 39.8-47.0], dropped to a postsurgical nadir of 27.3 (IQR: 22.8-33.1), and rose to 33.4 (IQR: 29.9-41.7) at the time of the questionnaire. Improvements in the IIH disease course at time of the questionnaire occurred in 37% of participants. However, there was a notable association between durable weight loss and IIH improvement as 90% (9 of 10) of participants that attained and maintained a BMI of 30 or below displayed improvement. CONCLUSIONS: Attaining and maintaining a BMI of 30 or below was associated with long-term improvement in the IIH disease course, including improved disease management and amelioration of signs and symptoms of participants of the IHR.


Assuntos
Cirurgia Bariátrica , Hipertensão Intracraniana , Pseudotumor Cerebral , Humanos , Pseudotumor Cerebral/complicações , Pseudotumor Cerebral/cirurgia , Estudos Retrospectivos , Estudos Transversais , Redução de Peso
6.
Emerg Med J ; 39(11): 826-832, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35914922

RESUMO

BACKGROUND: Birth before arrival at hospital (BBA) is associated with unfavourable perinatal outcomes and increased mortality. An important risk factor for mortality following BBA is hypothermia, and emergency medical services (EMS) providers are well placed to provide warming strategies. However, research from the UK suggests that EMS providers (paramedics) do not routinely record neonatal temperature following BBA. This study aimed to determine the proportion of cases in which neonatal temperature is documented by paramedics attending BBAs in the South West of England and to explore the barriers to temperature measurement by paramedics. METHODS: A two-phase multi-method study. Phase I involved an analysis of anonymised data from electronic patient care records between 1 February 2017 and 31 January 2020 in a single UK ambulance service, to determine 1) the frequency of BBAs attended and 2) the percentage of these births where a neonatal temperature was recorded, and what proportion of these were hypothermic. Phase II involved interviews with 20 operational paramedics from the same ambulance service, to explore their experiences of, and barriers and facilitators to, neonatal temperature measurement and management following BBA. RESULTS: There were 1582 'normal deliveries' attended by paramedics within the date range. Neonatal temperatures were recorded in 43/1582 (2.7%) instances, of which 72% were below 36.5°C. Data from interviews suggested several barriers and potential facilitators to paramedic measurement of neonatal temperature. Barriers included unavailable or unsuitable equipment, prioritisation of other care activities, lack of exposure to births, and uncertainty regarding responsibilities and roles. Possible facilitators included better equipment, physical prompts, and training and awareness-raising around the importance of temperature measurement. CONCLUSIONS: This study demonstrates a lack of neonatal temperature measurement by paramedics in the South West following BBA, and highlights barriers and facilitators that could serve as a basis for developing an intervention to improve neonatal temperature measurement.


Assuntos
Serviços Médicos de Emergência , Auxiliares de Emergência , Gravidez , Recém-Nascido , Feminino , Humanos , Ambulâncias , Temperatura , Pessoal Técnico de Saúde , Auxiliares de Emergência/educação , Serviços Médicos de Emergência/métodos , Hospitais
7.
J Neurol Neurosurg Psychiatry ; 92(10): 1112-1125, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34210802

RESUMO

Communication problems (eg, dysphonia, dysfluency and language and articulation disorders), swallowing disorders (dysphagia and globus), cough and upper airway symptoms, resulting from functional neurological disorder (FND), are commonly encountered by speech and language professionals. However, there are few descriptions in the literature of the most effective practical management approaches. This consensus document aims to provide recommendations for assessment and intervention that are relevant to both adults and young people. An international panel of speech and language professionals with expertise in FND were approached to take part. Participants responded individually by email to a set of key questions regarding best practice for assessment and interventions. Next, a video conference was held in which participants discussed and debated the answers to these key questions, aiming to achieve consensus on each issue. Drafts of the collated consensus recommendations were circulated until consensus was achieved. FND should be diagnosed on the basis of positive clinical features. Speech and language therapy for FND should address illness beliefs, self-directed attention and abnormal movement patterns through a process of education, symptomatic treatment and cognitive behavioural therapy within a supportive therapeutic environment. We provide specific examples of these strategies for different symptoms. Speech and language professionals have a key role in the management of people with communication and related symptoms of FND. It is intended that these expert recommendations serve as both a practical toolkit and a starting point for further research into evidence-based treatments.


Assuntos
Transtorno Conversivo/terapia , Tosse/terapia , Transtornos de Deglutição/terapia , Terapia da Linguagem , Fonoterapia , Consenso , Transtorno Conversivo/fisiopatologia , Tosse/fisiopatologia , Deglutição/fisiologia , Transtornos de Deglutição/fisiopatologia , Humanos , Fala/fisiologia
8.
Ecol Lett ; 23(8): 1223-1231, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32406146

RESUMO

Offspring polymorphism is a reproductive strategy where individual organisms simultaneously produce offspring that differ in morphology and ecology. It occurs across the Tree of Life but is particularly common among plants, where it is termed seed (diaspore) heteromorphism. The prevalence of this strategy in unpredictably varying environments has resulted in the assumption that it serves as a bet-hedging mechanism. We found 101 examples of this strategy in southwestern North America. We provide phylogenetically informed evidence for the hypothesis that the occurrence of seed heteromorphism increases with increasing environmental variability, though this pattern was only significant for aridity, one of our two rainfall variability metrics. We provide a strong test of bet hedging for a large, taxonomically diverse set of seed heteromorphic species, lending support to the hypothesis that bet hedging is an important mechanistic driver for the evolution of seed heteromorphism.


Assuntos
Ecologia , Reprodução , Evolução Biológica , Filogenia , Polimorfismo Genético
9.
Neurology ; 95(7): e921-e929, 2020 08 18.
Artigo em Inglês | MEDLINE | ID: mdl-32221030

RESUMO

OBJECTIVE: To determine (1) if mortality among patients with idiopathic intracranial hypertension (IIH) enrolled in the Intracranial Hypertension Registry (IHR) is different from that of the general population of the United States and (2) what the leading underlying causes of death are among this cohort. METHODS: Mortality and underlying causes of death were ascertained from the National Death Index. Indirect standardization using age- and sex-specific nationwide all-cause and cause-specific mortality data extracted from the Centers for Disease Control and Prevention Wonder Online Database allowed for calculation of standardized mortality ratios (SMR). RESULTS: There were 47 deaths (96% female) among 1437 IHR participants that met inclusion criteria. The average age at death was 46 years (range, 20-95 years). Participants of the IHR experienced higher all-cause mortality than the general population (SMR, 1.5; 95% confidence interval [CI], 1.2-2.1). Suicide, accidents, and deaths from medical/surgical complications were the most common underlying causes, accounting for 43% of all deaths. When compared to the general population, the risk of suicide was over 6 times greater (SMR, 6.1; 95% CI, 2.9-12.7) and the risk of death from accidental overdose was over 3 times greater (SMR, 3.5; 95% CI, 1.6-7.7). The risk of suicide by overdose was over 15 times greater among the IHR cohort than in the general population (SMR, 15.3; 95% CI, 6.4-36.7). CONCLUSIONS: Patients with IIH in the IHR possess significantly increased risks of death from suicide and accidental overdose compared to the general population. Complications of medical/surgical treatments were also major contributors to mortality. Depression and disability were common among decedents. These findings should be interpreted with caution as the IHR database is likely subject to selection bias.


Assuntos
Acidentes/mortalidade , Pseudotumor Cerebral/mortalidade , Transtornos Relacionados ao Uso de Substâncias/mortalidade , Suicídio/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sistema de Registros/estatística & dados numéricos , Adulto Jovem
11.
J Rehabil Assist Technol Eng ; 6: 2055668319852529, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31662884

RESUMO

INTRODUCTION: Daytime drooling is experienced by around 50% of Parkinson's patients, who fail to swallow saliva in sufficient volume or regularity, despite normal production. This research explored the feasibility and acceptability of using a cueing device, to improve drooling. METHODS: During a four-week intervention, 28 participants were asked to use a cueing device for 1 h per day. During this time, the device vibrated once-per-minute, reminding the participant to swallow their saliva. A daily diary was used to collect self-report around swallowing severity, frequency, and duration. This was filled out by participants for one week before, four weeks during and for one week immediately after intervention. Diaries were also collected for one week during a follow up, carried out four weeks after intervention finished. RESULTS: Participants self-reported benefits in drooling severity (p = 0.031), frequency (p ≤ 0.001), and duration (p = 0.001) after using the device. Improvements were maintained at follow up. Twenty-two participants explicitly reported a positive benefit to their drooling during exit interview. All felt the intervention and device were acceptable and usable. CONCLUSIONS: Using a cueing device for one month had perceived benefit to drooling severity, frequency and duration in patients with Parkinson's. Participants accepted the device and treatment protocol.

12.
J Neurol Neurosurg Psychiatry ; 90(11): 1265-1269, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-30826739

RESUMO

OBJECTIVE: Foreign accent syndrome (FAS) is widely understood as an unusual consequence of structural neurological damage, but may sometimes represent a functional neurological disorder. This observational study aimed to assess the prevalence and utility of positive features of functional FAS in a large group of individuals reporting FAS. METHODS: Participants self-reporting FAS recruited from informal unmoderated online support forums and via professional networks completed an online survey. Speech samples were analysed in a subgroup. RESULTS: Forty-nine respondents (24 UK, 23 North America, 2 Australia) reported FAS of mean duration 3 years (range 2 months to 18 years). Common triggers were: migraine/severe headache (15), stroke (12), surgery or injury to mouth or face (6) and seizure (5, including 3 non-epileptic). High levels of comorbidity included migraine (33), irritable bowel syndrome (17), functional neurological disorder (12) and chronic pain (12). Five reported structural lesions on imaging. Author consensus on aetiology divided into, 'probably functional (n=35.71%), 'possibly structural' (n=4.8%) and 'probably structural' (n=10.20%), but positive features of functional FAS were present in all groups. Blinded analysis of speech recordings supplied by 13 respondents correctly categorised 11 (85%) on the basis of probable aetiology (functional vs structural) in agreement with case history assignment. CONCLUSIONS: This largest case series to date details the experience of individuals with self-reported FAS. Although conclusions are limited by the recruitment methods, high levels of functional disorder comorbidity, symptom variability and additional linguistic and behavioural features suggest that chronic FAS may in some cases represent a functional neurological disorder, even when a structural lesion is present.


Assuntos
Distúrbios da Fala/etiologia , Distúrbios da Fala/patologia , Síndrome , Adulto , Idoso , Comorbidade , Feminino , Humanos , Idioma , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Distúrbios da Fala/epidemiologia , Distúrbios da Fala/fisiopatologia , Reino Unido/epidemiologia , Adulto Jovem
13.
J Voice ; 33(4): 526-535, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29395332

RESUMO

BACKGROUND: Voice tremor associated with Parkinson disease (PD) has not been characterized. Its relationship with voice disability and disease variables is unknown. OBJECTIVES: This study aimed to evaluate voice tremor in people with PD (pwPD) and a matched control group using acoustic analysis, and to examine correlations with voice disability and disease variables. METHODS: Acoustic voice tremor analysis was completed on 30 pwPD and 28 age-gender matched controls. Voice disability (Voice Handicap Index), and disease variables of disease duration, Activities of Daily Living (Unified Parkinson's Disease Rating Scale [UPDRS II]), and motor symptoms related to PD (UPDRS III) were examined for relationship with voice tremor measures. RESULTS: Voice tremor was detected acoustically in pwPD and controls with similar frequency. PwPD had a statistically significantly higher rate of amplitude tremor (Hz) than controls (P = 0.001). Rate of amplitude tremor was negatively and significantly correlated with UPDRS III total score (rho -0.509). For pwPD, the magnitude and periodicity of acoustic tremor was higher than for controls without statistical significance. The magnitude of frequency tremor (Mftr%) was positively and significantly correlated with disease duration (rho 0.463). PwPD had higher Voice Handicap Index total, functional, emotional, and physical subscale scores than matched controls (P < 0.001). Voice disability did not correlate significantly with acoustic voice tremor measures. CONCLUSION: Acoustic analysis enhances understanding of PD voice tremor characteristics, its pathophysiology, and its relationship with voice disability and disease symptomatology.


Assuntos
Acústica , Doença de Parkinson/complicações , Fonação , Medida da Produção da Fala , Prega Vocal/fisiopatologia , Distúrbios da Voz/diagnóstico , Qualidade da Voz , Adulto , Idoso , Estudos de Casos e Controles , Avaliação da Deficiência , Humanos , Masculino , Pessoa de Meia-Idade , Doença de Parkinson/diagnóstico , Doença de Parkinson/fisiopatologia , Valor Preditivo dos Testes , Estudos Prospectivos , Distúrbios da Voz/etiologia , Distúrbios da Voz/fisiopatologia
14.
J Voice ; 33(4): 465-472, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30072205

RESUMO

Perceptual assessment of tracheoesophageal voice quality following total laryngectomy with surgical voice restoration is essential to investigate functional outcomes in relation to surgical procedure and rehabilitation regimes. There is no current tool with established reliability and validity to fulfill this purpose. This study describes the development of a set of new perceptual scales, in relation to core validity and reliability issues. These were investigated using voice stimuli from 55 voice prosthesis speakers and evaluated by 22 judges-12 speech and language therapists (SLTs), 10 Ear, Nose, and Throat surgeons-classified into experienced or not at assessing voice. SLT judges rated more parameters reliably than Ear, Nose, and Throat raters, and SLTs with specialist experience in laryngectomy and laryngeal voice attained the most parameters at an acceptable level of agreement. These scales are ready for clinical use, with the most optimal assessors being expert SLTs. Future studies are needed to ascertain precisely how reliability may relate to training, experience, voice stimuli type, and scale format.


Assuntos
Julgamento , Acústica da Fala , Percepção da Fala , Medida da Produção da Fala , Voz Alaríngea , Patologia da Fala e Linguagem/métodos , Qualidade da Voz , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Valor Preditivo dos Testes , Reprodutibilidade dos Testes
15.
Clin Linguist Phon ; 32(11): 997-1011, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30277104

RESUMO

Influential reports on speech changes in people with Parkinson's disease (PD; Logemann et al., 1978, 1981) reported a posterior to anterior pattern of loss of speech sound accuracy. These claims have never been examined. In a partial replication of Logemann et al.'s work, we examined whether posterior lingual sounds are most affected in people with Parkinson's disease, followed by anterior lingual sounds and then labial sounds. Ninety-nine people with PD (age: mean 70.7, SD 8.46; time since diagnosis: mean 6.97, SD 6.2) with mild to severe overall motor symptoms (Hoehn and Yahr stages 1-5, median 2.5) completed a diagnostic intelligibility test. This was scored by 60 listeners unfamiliar with PD and dysarthric speech. We calculated the proportion of posterior versus anterior lingual versus labial sounds misrecognized by the listeners. We compared profiles of misperceived sounds within and across Hoehn and Yahr stages of severity and in relation to Unified Parkinson's Disease Rating Scale (UPDRS) and speech intelligibility scores. Speech accuracy declined significantly in relation to overall motor impairment for labial and anterior lingual sounds but not for velar sounds. Speech sound accuracy was strongly associated with intelligibility outcomes (p = < 0.01). Contrary to previous assertions, there was no evidence supporting the existence of a posterior to anterior order of 'loss' of oral speech sounds in people with PD, nor an interaction of anterior-posterior speech profile changes with Hoehn and Yahr stage. Findings support the notion that a common underlying impairment of movement downscaling affects all sounds similarly and simultaneously in PD from the start.


Assuntos
Disartria/psicologia , Doença de Parkinson/fisiopatologia , Índice de Gravidade de Doença , Inteligibilidade da Fala , Adulto , Idoso , Feminino , Humanos , Masculino
16.
Dysphagia ; 33(6): 809-817, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-29785679

RESUMO

Drooling is a frequently reported symptom in Parkinson's Disease (PD) with significant psychosocial impact and negative health consequences including silent aspiration of saliva with the associated risk of respiratory infections. It is suggested that in PD drooling is associated with inefficient oropharyngeal swallowing which reduces the effective clearance of saliva rather than hyper-salivation. This is compounded by unintended mouth opening and flexed posture increasing anterior loss of saliva. It is reported to occur most frequently during cognitively distracting concurrent tasks suggesting an impact from divided attention in a dual-task situation. However, this supposition has not been systematically examined. This study assessed whether frequency of saliva swallows reduced, and drooling severity and frequency increased, when people with PD engaged in a cognitively distracting task. 18 patients with idiopathic PD reporting daytime drooling on the Unified Parkinson's Disease Rating Scale (UPDRS) were recruited. They completed the Radboud Oral Motor Inventory for PD saliva questionnaire and the Montreal Cognitive Assessment. UPDRS drooling score, disease stage, duration, gender, and age were recorded. Swallow frequency and drooling severity and frequency were measured at rest and during a distracting computer-based language task. There was no significant difference between drooling severity at rest and during distraction (Wilcoxon signed rank test z = - 1.724, p = 0.085). There was a significant difference between at rest and distraction conditions for both drooling frequency (Wilcoxon signed rank test z = - 2.041, p = 0.041) and swallow frequency (Wilcoxon signed rank test z = - 3.054, p = 0.002). Participants swallowed less frequently and drooled more often during the distraction task. The frequency of saliva swallows and drooling are affected by divided attention in a dual-task paradigm. Further studies are needed to explore the exact role of attention in saliva management and the clinical applications in assessment and treatment.


Assuntos
Atenção/fisiologia , Deglutição/fisiologia , Doença de Parkinson/fisiopatologia , Doença de Parkinson/psicologia , Sialorreia/etiologia , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino , Doença de Parkinson/complicações , Saliva , Índice de Gravidade de Doença , Sialorreia/fisiopatologia , Sialorreia/psicologia , Estatísticas não Paramétricas , Inquéritos e Questionários , Análise e Desempenho de Tarefas
17.
Int J Lang Commun Disord ; 53(1): 182-195, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28714530

RESUMO

BACKGROUND: The speech intelligibility of children with dysarthria and cerebral palsy has been observed to increase following therapy focusing on respiration and phonation. AIMS: To determine if speech intelligibility change following intervention is associated with change in acoustic measures of voice. METHODS & PROCEDURES: We recorded 16 young people with cerebral palsy and dysarthria (nine girls; mean age 14 years, SD = 2; nine spastic type, two dyskinetic, four mixed; one Worster-Drought) producing speech in two conditions (single words, connected speech) twice before and twice after therapy focusing on respiration, phonation and rate. In both single-word and connected speech we measured vocal intensity (root mean square-RMS), period-to-period variability (Shimmer APQ, Jitter RAP and PPQ) and harmonics-to-noise ratio (HNR). In connected speech we also measured mean fundamental frequency, utterance duration in seconds and speech and articulation rate (syllables/s with and without pauses respectively). All acoustic measures were made using Praat. Intelligibility was calculated in previous research. OUTCOMES & RESULTS: In single words statistically significant but very small reductions were observed in period-to-period variability following therapy: Shimmer APQ -0.15 (95% CI = -0.21 to -0.09); Jitter RAP -0.08 (95% CI = -0.14 to -0.01); Jitter PPQ -0.08 (95% CI = -0.15 to -0.01). No changes in period-to-period perturbation across phrases in connected speech were detected. However, changes in connected speech were observed in phrase length, rate and intensity. Following therapy, mean utterance duration increased by 1.11 s (95% CI = 0.37-1.86) when measured with pauses and by 1.13 s (95% CI = 0.40-1.85) when measured without pauses. Articulation rate increased by 0.07 syllables/s (95% CI = 0.02-0.13); speech rate increased by 0.06 syllables/s (95% CI = < 0.01-0.12); and intensity increased by 0.03 Pascals (95% CI = 0.02-0.04). There was a gradual reduction in mean fundamental frequency across all time points (-11.85 Hz, 95% CI = -19.84 to -3.86). Only increases in the intensity of single words (0.37 Pascals, 95% CI = 0.10-0.65) and reductions in fundamental frequency (-0.11 Hz, 95% CI = -0.21 to -0.02) in connected speech were associated with gains in intelligibility. CONCLUSIONS & IMPLICATIONS: Mean reductions in impairment in vocal function following therapy observed were small and most are unlikely to be clinically significant. Changes in vocal control did not explain improved intelligibility.


Assuntos
Paralisia Cerebral/terapia , Disartria/terapia , Acústica da Fala , Inteligibilidade da Fala , Adolescente , Paralisia Cerebral/complicações , Paralisia Cerebral/psicologia , Criança , Disartria/complicações , Disartria/psicologia , Feminino , Humanos , Masculino , Medida da Produção da Fala , Fonoterapia/métodos , Resultado do Tratamento , Qualidade da Voz
18.
Pract Neurol ; 17(4): 266-274, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28687681

RESUMO

This review looks at the nature and impact of communication changes in Parkinson's disease, approaches to assessment and directions for intervention. This is especially important since medical and surgical interventions that help limb movement are largely ineffective, or even detrimental, for speech. Most people with Parkinson's disease notice changes to their communication. Voice alters early on-even in the prodromal stage. Later, articulation may impair intelligibility further. These changes impact on mood and social participation. However, a full characterisation of communication changes in Parkinson's must acknowledge that changes are far more pervasive and varied than a quiet voice. Communication is affected by marked dysprosody, cognitive-linguistic impairment, alterations to social interaction and pragmatics. Changes entail not just expressive elements but also receptive. A comprehensive evaluation of potential communication challenges faced by people with Parkinson's disease must cover all these aspects. Similarly, interventions that ignore the breadth and depth of changes will always remain incomplete.


Assuntos
Transtornos da Comunicação/etiologia , Doença de Parkinson/complicações , Humanos
20.
Int J Lang Commun Disord ; 52(6): 800-815, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28620998

RESUMO

BACKGROUND: A large number of people who experience a stroke are affected by dysarthria. This may be in isolation or in association with aphasia and/or dysphagia. Despite evidence highlighting the psychological and social impact of having post-stroke dysarthria and a number of clinical guidelines that make recommendations for appropriate management, little is known currently about UK service delivery issues relating to speech and language therapy (SLT) assessment and treatment for this group. Such evidence is necessary in order to plan, develop and research services for people with post-stroke dysarthria. AIMS: To gain an overview of SLT practices in the management of people with dysarthria after stroke in the UK. METHODS & PROCEDURES: SLTs in the UK were asked to complete an online survey addressing referral patterns, caseload profiles, and their assessment and intervention methods for post-stroke dysarthria. In the absence of a national register of clinicians working with people with acquired dysarthria, a snowballing method was used to facilitate participant recruitment. Results were analysed using descriptive statistics. OUTCOMES & RESULTS: A total of 146 SLTs responded. The majority were employed by the National Health Service (NHS). Most patients were referred within 1 week post-stroke. Almost half the respondents did not regularly use formal assessments and the use of instrumentation was rare, including the use of video recording. The focus of therapy for mild, moderate and severe dysarthria did not differ significantly for clinicians. A little under half the respondents endorsed non-verbal oral exercises in rehabilitation. The survey demonstrated some appreciation of the centrality of regular intensive practice to effect change, but this was in a minority. CONCLUSIONS & IMPLICATIONS: Through this research it became clear that basic information regarding post-stroke dysarthria incidence, prevalence and core demographics is currently unavailable. More embedded NHS SLT reporting systems would make a significant contribution to this area. A more in-depth examination is required of the natural history of dysarthria over the months and years following stroke, of SLT practices in relation to post-stroke dysarthria, with investigations to understand more fully the choices SLTs make and how this relates to available evidence to support their clinical decision-making.


Assuntos
Acessibilidade aos Serviços de Saúde/tendências , Terapia da Linguagem/tendências , Fonoterapia/tendências , Fala , Reabilitação do Acidente Vascular Cerebral/tendências , Acidente Vascular Cerebral/terapia , Disartria/diagnóstico , Disartria/epidemiologia , Disartria/psicologia , Disartria/reabilitação , Fidelidade a Diretrizes/tendências , Pesquisas sobre Atenção à Saúde , Necessidades e Demandas de Serviços de Saúde/tendências , Disparidades em Assistência à Saúde/tendências , Humanos , Avaliação das Necessidades/tendências , Guias de Prática Clínica como Assunto , Padrões de Prática Médica/tendências , Medicina Estatal/tendências , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/psicologia , Reino Unido/epidemiologia
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