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1.
Pediatr Pulmonol ; 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39347603

RESUMO

Children with cerebral palsy have increased respiratory morbidity and mortality. Infection with Pseudomonas aeruginosa (PA) is associated with poorer outcomes, yet there are no formal guidelines to inform treatment of respiratory infection in children with cerebral palsy. This review explores the existing literature regarding management of PA-infection in children with cerebral palsy, with the aim of synthesising clinical recommendations and identifying gaps in current understanding. Medline (Ovid), PubMed and Embase were searched using keywords. Full-text articles involving the paediatric population and antimicrobial therapy were included. There was no limit on date of publication. Four retrospective case series were identified. Respiratory microbiology, in samples collected from a range of sites along the respiratory tract, was reported in three studies. Patients who received PA-specific antibiotics clinically improved. Two studies suggest that the use of suppressive inhaled anti-pseudomonal therapy may improve respiratory morbidity in the chronic setting. There is minimal evidence to guide management of PA respiratory infection in children with cerebral palsy. Children with cerebral palsy are at risk of developing bronchiectasis, so in the absence of high-quality evidence, management should be informed by extrapolating from the non-cystic fibrosis bronchiectasis guidelines. Further research examining surveillance and management of PA-infection in this population is required given that early intervention may prevent irreversible lung damage.

2.
Insects ; 15(9)2024 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-39336632

RESUMO

Ceresini treehoppers are present in northern California vineyard ecosystems, including the closely related Spissistilus and Tortistilus (Hemiptera: Membracidae). These membracids are not direct pests of wine grapes, but S. festinus is a vector of grapevine red blotch virus (GRBV). No information is available on the ability of Tortistilus spp. to transmit GRBV. In this study, Tortistilus were collected on yellow panel cards across 102 vineyard sites and surrounding areas in Napa Valley, California, USA in 2021-2023. Specimens were morphotyped, sexed and tested for GRBV ingestion and acquisition by multiplex PCR or qPCR. Phylogenetic analysis of the partial sequence of mt-COI and ITS gene fragments of a subset of 40 Tortistilus specimens revealed clustering in a monophyletic clade with T. wickhami with the former barcode sequence. Only 6% (48/758) of the T. wickhami tested positive for GRBV, but none of the heads with salivary glands (0%, 0/50) of the dissected specimens tested positive for GRBV, indicating no virus acquisition. In contrast, half of the dissected heads with salivary glands of S. festinus (52%, 12/23), from the same collection vineyard sites, tested positive for GRBV. Together, our findings confirmed the presence of T. wickhami in northern California vineyards and suggested a dubious role of this treehopper as a vector of GRBV.

4.
5.
Child Care Health Dev ; 50(2): e13250, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38529773

RESUMO

BACKGROUND: Obtaining peripheral intravenous catheter (PIVC) access in children with severe neurological impairment (SNI) is often challenging and commonly associated with complications, including dislodgement, phlebitis and extravasation. In severe cases, extravasation injury may lead to tissue necrosis, ulceration and long-term morbidity. The aim of this study was to determine the relative incidence of PIVC complications secondary to lower limb cannulation, compared to upper limb, in children with SNI. METHODS: A single centre, retrospective, observational review was conducted. Patients with SNI, admitted at a tertiary paediatric centre over 6 months between July and December 2022, were included. RESULTS: One-hundred fifty-five PIVC procedures were conducted in 110 children over the study period. Complications were more common in lower limb PIVCs (12/16, 75%) compared to upper limb (58/139, 42%), p = 0.01. CONCLUSION: Upper limb cannulation is preferred in children with SNI.


Assuntos
Cateterismo Periférico , Criança , Humanos , Estudos Retrospectivos , Cateterismo Periférico/efeitos adversos , Cateterismo Periférico/métodos , Extremidade Superior , Hospitalização , Incidência
6.
BMJ Open ; 14(2): e076730, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38365293

RESUMO

INTRODUCTION: The most common cause of morbidity and mortality in children with severe cerebral palsy (CP) is respiratory disease. BREATHE-CP (Better REspiratory and Airway Treatment and HEalth in Cerebral Palsy) is a multidisciplinary research team who have conducted research on the risk factors associated with CP respiratory disease, a systematic review on management and a Delphi study on the development of a consensus for the prevention and management of respiratory disease in CP. These strategies have not been investigated; therefore, it is not known if implementation is feasible, if they improve patient outcomes or if they are acceptable for families. METHODS AND ANALYSIS: Mixed-method feasibility pilot randomised controlled trial with economic analysis. Twenty children with CP aged 0-12 years who are at risk of respiratory disease will be followed up for 1 year. All children will receive baseline assessments for comparison. The control group will receive usual care from their treating teams. The intervention group will receive comprehensive assessments from physiotherapy, speech pathology and respiratory medicine. An individualised investigation and treatment plan will then be made. Participants in both groups will complete fortnightly patient-reported outcome surveys to assess symptoms and health service use. Analysis will include assessments of acceptability through qualitative interviews, implementation by ability to recruit, randomise and retain, practicality including costs of intervention and hospitalisation, and explore efficacy through quality-of-life surveys and decreased health service use for respiratory-related symptoms. ETHICS AND DISSEMINATION: Ethics and governance approvals have been obtained through Child and Adolescent Health Service Human Research Ethics Committee. At completion, this study will lead to the design of the definitive protocol to test intervention efficacy that maximises recruitment, retention and adherence to interventions. TRIAL REGISTRATION NUMBER: Australian New Zealand Clinical Trials Registry (ACTRN12620000114943).


Assuntos
Paralisia Cerebral , Estudos de Viabilidade , Humanos , Paralisia Cerebral/terapia , Projetos Piloto , Pré-Escolar , Criança , Lactente , Ensaios Clínicos Controlados Aleatórios como Assunto , Hospitalização , Masculino , Feminino , Recém-Nascido , Doenças Respiratórias/terapia , Austrália
7.
Plant Dis ; 108(1): 104-112, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37486275

RESUMO

Wine grape production (Vitis sp.) in the United States requires fungicide inputs for disease control. Currently, there is limited data available on vineyard fungicide use patterns. This information is important in developing tailored recommendations for disease management and fungicide stewardship. In this paper, we summarize the wine grape vineyard fungicide use patterns from four major regions: Napa and Sonoma valleys (California), Willamette Valley (Oregon), Columbia Valley (Washington), and several smaller regions east of the Mississippi River in years 2009 to 2020. We learned that the average in-season total fungicide applications ranged regionally from 5.6 to 8. The most commonly applied Fungicide Resistance Action Committee (FRAC) codes in spray programs were FRAC 3, 13, and M02 across all regions, with some variation to the top four groups in each region. Most applications were made on 14-day intervals; however, shorter intervals (7-day) were favored early season, and longer intervals (21-day) were favored late season. Tank-mixing multiple active ingredients was common east of the Mississippi River during all stages of grape development; this action was typically favored during the bloom period in other regions. In a subset of records that participated in FRAC 11 fungicide resistance testing, the average number of FRAC 11 applications after testing was reduced to either no applications or one application in Napa and Sonoma valleys. This survey provides regionally specific data related to fungicide stewardship practices that could be a focus for future stewardship messaging and fungicide resistance selection training, including total product use (selection events), spray intervals (selection pressure), and tank mixing (selection management).[Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.


Assuntos
Fungicidas Industriais , Vitis , Vinho , Fungicidas Industriais/farmacologia , Vinho/análise , Meio Ambiente , Oregon
8.
Epilepsy Res ; 199: 107267, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38113603

RESUMO

PURPOSE: To study seizure manifestations and outcomes in children with cortical versus white matter injury, differences potentially explaining variability of epilepsy in children with cerebral palsy. METHODS: In this population-based retrospective cohort study, MRIs of children with cerebral palsy due to ischemia or haemorrhage were classified according to presence or absence of cortical injury. MRI findings were then correlated with history of neonatal seizures, seizures during childhood, epilepsy syndromes, and seizure outcomes. RESULTS: Of 256 children studied, neonatal seizures occurred in 57 and seizures during childhood occurred in 93. Children with neonatal seizures were more likely to develop seizures during childhood, mostly those with cortical injury. Cortical injury was more strongly associated with (1) developing seizures during childhood, (2) more severe epilepsy syndromes (infantile spasms syndrome, focal epilepsy, Lennox-Gastaut syndrome), and (3) less likelihood of reaching > 2 years without seizures at last follow-up, compared to children without cortical injury. Children without cortical injury, mainly those with white matter injury, were less likely to develop neonatal seizures and seizures during childhood, and when they did, epilepsy syndromes were more commonly febrile seizures and self-limited focal epilepsies of childhood, with most achieving > 2 years without seizures at last follow-up. The presence of cortical injury also influenced seizure occurrence, severity, and outcome within the different predominant injury patterns of the MRI Classification System in cerebral palsy, most notably white matter injury. CONCLUSIONS: Epileptogenesis is understood with cortical injury but not well with white matter injury, the latter potentially related to altered postnatal white matter development or myelination leading to apoptosis, abnormal synaptogenesis or altered thalamic connectivity of cortical neurons. These findings, and the potential mechanisms discussed, likely explain the variability of epilepsy in children with cerebral palsy and epilepsy following early-life brain injury in general.


Assuntos
Lesões Encefálicas , Paralisia Cerebral , Epilepsias Parciais , Epilepsia , Convulsões Febris , Espasmos Infantis , Substância Branca , Criança , Recém-Nascido , Humanos , Estudos Retrospectivos , Paralisia Cerebral/complicações , Paralisia Cerebral/diagnóstico por imagem , Substância Branca/diagnóstico por imagem , Epilepsia/complicações , Espasmos Infantis/complicações , Lesões Encefálicas/complicações , Lesões Encefálicas/diagnóstico por imagem , Eletroencefalografia
9.
Am J Hosp Palliat Care ; 41(1): 16-25, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37029909

RESUMO

BACKGROUND: Intractable feeding intolerance in children with severe neurological impairment (SNI) is poorly defined and understood. OBJECTIVES: (1) To describe 9 children with SNI, where intractable feeding intolerance was thought to be a contributor to their deterioration or death. (2) To consider terminology to describe the severe end of the spectrum of feeding difficulties in children with SNI. RESULTS: Mean age at death was 10.3 years (range: 5 - 15.6), and median time from palliative care referral to death was 3.1 months. Location of death was home (n = 3), hospice (n = 1), and hospital (n = 5) with 1 death in intensive care. Gastrointestinal "failure" or "dysfunction" were documented for 7 children, (median time between documentation and death was 3.9 months (range: .1 to 13.1)). All children were fed via a gastrostomy tube during their life (median age of insertion 2.5 years (range: 1.2 to 6.8 years)), and 7 via the jejunal route (median age of insertion 9.2 years (range 2.4 to 14.7 years)). Children lived a median of 9 percent of their lives after jejunal tube feeding was commenced. No child had home-based parenteral nutrition. Multiple symptom management medications were required. CONCLUSION: 'Intractable feeding intolerance' describes a clinical crossroads in a child's life where there is an opportunity to consider the appropriateness of further interventions. Further work should explore predictors of intractable feeding intolerance and the delicate balance between cause or contributor to death. The importance of clinician-family prognostic conversations and goal-concordant care both during life and in the terminal phase is highlighted.


Assuntos
Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Hospitais para Doentes Terminais , Criança , Humanos , Recém-Nascido , Lactente , Pré-Escolar , Adolescente , Cuidados Paliativos , Estudos Retrospectivos , Nutrição Enteral
10.
J Clin Med ; 12(16)2023 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-37629371

RESUMO

Cerebral palsy is a life-long condition and the most common cause of physical disability in childhood [...].

11.
J Child Neurol ; 38(5): 336-346, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37203178

RESUMO

Objective: To determine the frequency of paroxysmal nonepileptic events in children with cerebral palsy due to brain injury who have epilepsy and to describe the factors associated with paroxysmal nonepileptic events. Methods: Retrospective, population-based study of children from the Victorian CP Register born 1999-2006. Neuroimaging, medical records, electroencephalograms (EEG), and EEG requests were analyzed. Results: Of the included 256 children, 87 had epilepsy. EEGs (with video correlation) were available for 82 of 87. Eighteen (18/82, 22%) had epileptic events captured on EEG. Twenty-one (21/82, 26%) had paroxysmal nonepileptic events captured on EEG. The majority (13/18, 77%) of children with epileptic events also had paroxysmal nonepileptic events captured. Ten parents and carers continued to report events as epileptic despite there being no ictal EEG correlate for specific events on multiple EEGs. There were no clear associations to identify which children would have ongoing paroxysmal nonepileptic events reported. Conclusions: Paroxysmal nonepileptic events were captured on EEG in one-fourth of children from this cerebral palsy cohort with epilepsy and available EEG. Half the parents and carers reported previously identified paroxysmal nonepileptic events as epileptic on subsequent EEGs, highlighting the need for clearer counseling so that parents better understand seizure semiology in children with EEG-proven paroxysmal nonepileptic events.


Assuntos
Lesões Encefálicas , Paralisia Cerebral , Epilepsia , Criança , Humanos , Paralisia Cerebral/complicações , Estudos Retrospectivos , Epilepsia/complicações , Convulsões/etiologia , Eletroencefalografia/métodos
12.
Phytopathology ; 113(8): 1465-1473, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37080548

RESUMO

The pathogen Xylella fastidiosa subsp. fastidiosa has circulated through California's vineyards since its introduction from Central America in the 1800s. This pathogen is responsible for a bacterial disease called Pierce's disease (PD) of grapevine. With no known cure, PD has had devastating effects on some vineyards. Important factors that impact disease severity and persistence include: the presence of insect vectors, grapevine cultivar, management, ecology, and winter temperatures. Removal of infected vines is critical for reducing pathogen spread but relies on accurate and rapid pathogen detection. In this study, we foster a greater understanding of disease symptom emergence by way of a 3-year field inoculation project in Napa Valley. Although PD emergence and symptom progression have been studied in greenhouse and experimental plots, there is a large knowledge gap in quantifying disease progression under commercial conditions. After inoculating 80 mature Vitis vinifera vines in April 2017, we measured bacterial populations and six symptom types at four locations within each plant throughout the subsequent three growing seasons. The main foci of the project were understanding X. fastidiosa movement through the plants, infection, overwinter curing, and symptom development. We observed greater winter recovery than expected, and shriveled grape clusters proved to be a more reliable early indication of infection than other more commonly used symptoms. Although there were differences among wine grape cultivars, this work suggests that disease progression in the field may not fit the paradigm of predominant leaf scorch and low recovery rates as neatly as has been previously believed.

13.
Front Plant Sci ; 14: 1117869, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36968421

RESUMO

Introduction: Grapevine leafroll-associated viruses (GLRaVs) and grapevine red blotch virus (GRBV) cause substantial economic losses and concern to North America's grape and wine industries. Fast and accurate identification of these two groups of viruses is key to informing disease management strategies and limiting their spread by insect vectors in the vineyard. Hyperspectral imaging offers new opportunities for virus disease scouting. Methods: Here we used two machine learning methods, i.e., Random Forest (RF) and 3D-Convolutional Neural Network (CNN), to identify and distinguish leaves from red blotch-infected vines, leafroll-infected vines, and vines co-infected with both viruses using spatiospectral information in the visible domain (510-710nm). We captured hyperspectral images of about 500 leaves from 250 vines at two sampling times during the growing season (a pre-symptomatic stage at veraison and a symptomatic stage at mid-ripening). Concurrently, viral infections were determined in leaf petioles by polymerase chain reaction (PCR) based assays using virus-specific primers and by visual assessment of disease symptoms. Results: When binarily classifying infected vs. non-infected leaves, the CNN model reaches an overall maximum accuracy of 87% versus 82.8% for the RF model. Using the symptomatic dataset lowers the rate of false negatives. Based on a multiclass categorization of leaves, the CNN and RF models had a maximum accuracy of 77.7% and 76.9% (averaged across both healthy and infected leaf categories). Both CNN and RF outperformed visual assessment of symptoms by experts when using RGB segmented images. Interpretation of the RF data showed that the most important wavelengths were in the green, orange, and red subregions. Discussion: While differentiation between plants co-infected with GLRaVs and GRBV proved to be relatively challenging, both models showed promising accuracies across infection categories.

15.
Brain ; 146(2): 587-599, 2023 02 13.
Artigo em Inglês | MEDLINE | ID: mdl-35871494

RESUMO

Seizures occur in approximately one-third of children with cerebral palsy. This study aimed to determine epilepsy syndromes in children with seizures and cerebral palsy due to vascular injury, anticipating that this would inform treatment and prognosis. We studied a population-based cohort of children with cerebral palsy due to prenatal or perinatal vascular injuries, born 1999-2006. Each child's MRI was reviewed to characterize patterns of grey and white matter injury. Children with syndromic or likely genetic causes of cerebral palsy were excluded, given their inherent association with epilepsy and our aim to study a homogeneous cohort of classical cerebral palsy. Chart review, parent interview and EEGs were used to determine epilepsy syndromes and seizure outcomes. Of 256 children, 93 (36%) had one or more febrile or afebrile seizures beyond the neonatal period and 87 (34%) had epilepsy. Children with seizures were more likely to have had neonatal seizures, have spastic quadriplegic cerebral palsy and function within Gross Motor Function Classification System level IV or V. Fifty-six (60%) children with seizures had electroclinical features of a self-limited focal epilepsy of childhood; we diagnosed these children with a self-limited focal epilepsy-variant given the current International League Against Epilepsy classification precludes a diagnosis of self-limited focal epilepsy in children with a brain lesion. Other epilepsy syndromes were focal epilepsy-not otherwise specified in 28, infantile spasms syndrome in 11, Lennox-Gastaut syndrome in three, genetic generalized epilepsies in two and febrile seizures in nine. No epilepsy syndrome could be assigned in seven children with no EEG. Twenty-one changed syndrome classification during childhood. Self-limited focal epilepsy-variant usually manifested with a mix of autonomic and brachio-facial motor features, and occipital and/or centro-temporal spikes on EEG. Of those with self-limited focal epilepsy-variant, 42/56 (75%) had not had a seizure for >2 years. Favourable seizure outcomes were also seen in some children with infantile spasms syndrome and focal epilepsy-not otherwise specified. Of the 93 children with seizures, at last follow-up (mean age 15 years), 61/91 (67%) had not had a seizure in >2 years. Children with cerebral palsy and seizures can be assigned specific epilepsy syndrome diagnoses typically reserved for normally developing children, those syndromes commonly being age-dependent and self-limited. Compared to typically developing children with epilepsy, self-limited focal epilepsy-variant occurs much more commonly in children with cerebral palsy and epilepsy. These findings have important implications for treatment and prognosis of epilepsy in cerebral palsy, and research into pathogenesis of self-limited focal epilepsy.


Assuntos
Paralisia Cerebral , Epilepsias Parciais , Epilepsia , Espasmos Infantis , Criança , Recém-Nascido , Humanos , Adolescente , Espasmos Infantis/complicações , Paralisia Cerebral/complicações , Eletroencefalografia , Síndrome , Convulsões
16.
J Clin Med ; 11(22)2022 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-36431246

RESUMO

Neuromuscular scoliosis is a common feature in children with severe neurological impairment (SNI), including those with severe cerebral palsy. Surgical correction of scoliosis is the mainstay of treatment. This group of patients also have associated medical complexity. The complication rates post-surgery are high, although, for many, they are worth the risk. There are currently no published practice guidelines or care pathways for children with SNI who are undergoing scoliosis corrective surgery. In response to the high uptake of this surgery, coupled with the expected complication rates, our hospital established a perioperative clinic. The purpose of this paper is to describe our perioperative approach. This clinic has developed into a service beyond perioperative care and, with the collaborative meeting, enables shared decision-making to identify the right candidate for surgery. The process involves surgical expertise, understanding the family and child at the centre, and optimisation of medical care pre- and post-surgery. In this paper, we describe the process in a step-by-step manner. We provide clinical vignettes, as well as the proformas that we use, and we highlight the benefits of the team-based process.

17.
J Paediatr Child Health ; 58(11): 1929-1934, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36066306

RESUMO

Cerebral palsy (CP) is a broad diagnosis unbound by aetiology and is based on a clinical examination demonstrating abnormalities of movement or posture. CP represents a static neurological condition, provided that neurodegenerative conditions, leukoencephalopathies and neuromuscular disorders are excluded. In paediatrics, the genetic conditions associated with CP are rapidly increasing, with primary and overlapping neurodevelopmental conditions perhaps better categorised by the predominant clinical feature such as CP, intellectual disability, autism spectrum disorder or epilepsy. Progress in molecular genetics may challenge what constitutes CP, but a genetic diagnosis does not negate the CP diagnosis. As clinicians working in the field, we discuss the changing tide of CP. Neuroimaging provides essential information through pattern recognition and demonstration of static brain changes. We present examples of children where a layered clinical diagnosis or dual aetiologies are appropriate. We also present examples of children with genetic causes of CP to highlight the challenges and limitations of neuroimaging to provide an aetiological diagnosis. In consultation with a geneticist, access to genomic testing (exome or genome sequencing) is now available in Australia under Medicare billing for children under the age of 10 with dysmorphic features, one or more major structural organ anomalies, (an evolving) intellectual disability or global developmental delay. We encourage the uptake of genomic testing in CP, because it can be difficult to tell whether a child has an environmental or genetic cause for CP. A specific genetic diagnosis may change patient management, reduce guilt and enable more distinctive research in the future to assist with understanding disease mechanisms.


Assuntos
Transtorno do Espectro Autista , Paralisia Cerebral , Epilepsia , Deficiência Intelectual , Idoso , Criança , Humanos , Paralisia Cerebral/etiologia , Paralisia Cerebral/complicações , Deficiência Intelectual/etiologia , Deficiência Intelectual/complicações , Transtorno do Espectro Autista/complicações , Programas Nacionais de Saúde
18.
Int J Drug Policy ; 104: 103696, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35490624

RESUMO

BACKGROUND: The high burden of hepatitis C among people who inject drugs in Australia underscores the need to increase testing within this population. Understanding hepatitis C screening uptake in primary care settings is therefore critical to the development of effective and targeted strategies to improve hepatitis C testing for people who inject drugs. Primary care services that prescribe OAT are well-positioned to provide hepatitis C testing among a priority population at-risk of hepatitis C. METHODS: This study used linked data from 5,429 individuals attending ten clinical services participating in the Australian Collaboration for Coordinated Enhanced Sentinel Surveillance (ACCESS) who received their first recorded OAT prescription between 1st January 2012 and 31st December 2019. We estimated the proportion of OAT recipients who received a hepatitis C antibody test within 12 months of their first recorded OAT prescription, and the proportion of individuals tested who received a positive hepatitis C antibody test. RESULTS: Approximately one in five individuals (17%) received a hepatitis C antibody test in the 12 months following their first recorded OAT prescription. Over half of individuals tested (56%) received a positive hepatitis C antibody test result. Hepatitis C antibody testing was higher among individuals who attended 5-8 (aOR:2.98; 95%CI:2.41-3.69) and 9+ (aOR:6.17; 95%CI:5.13-7.43) clinical consultations, were women (aOR:1.20; 95%CI:1.08-1.34) and whose first recorded OAT prescription occurred in 2017 vs. 2012 (aOR:1.39; 95%CI:1.06-1.84). Hepatitis C antibody testing was lower among individuals prescribed methadone (aOR:0.81; 95%CI:0.73-0.91), and individuals aged 60+ years vs. 18-29 years (aOR:0.67; 95%CI:0.48-0.94). CONCLUSION: Despite high positivity rates, hepatitis C antibody testing among individuals prescribed OAT remains low. There are opportunities for increased testing among populations exhibiting greater proportions of missed testing opportunities. Integrating routine hepatitis C screening in OAT settings will likely increase case-finding and contribute to Australia's hepatitis C elimination targets.


Assuntos
Hepatite C , Abuso de Substâncias por Via Intravenosa , Analgésicos Opioides/uso terapêutico , Antivirais/uso terapêutico , Feminino , Hepacivirus , Hepatite C/diagnóstico , Hepatite C/tratamento farmacológico , Hepatite C/epidemiologia , Anticorpos Anti-Hepatite C , Humanos , Masculino , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/tratamento farmacológico , Abuso de Substâncias por Via Intravenosa/epidemiologia , Vitória
19.
Plant Dis ; 106(9): 2310-2320, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35100029

RESUMO

Succinate dehydrogenase inhibitors (SDHIs) are fungicides used in control of numerous fungal plant pathogens, including Erysiphe necator, the causal agent of grapevine powdery mildew (GPM). Here, the sdhb, sdhc, and sdhd genes of E. necator were screened for mutations that may be associated with SDHI resistance. GPM samples were collected from 2017 to 2020 from the U.S. states of California, Oregon, Washington, and Michigan, and the Canadian province of British Columbia. Forty-five polymorphisms were identified in the three sdh genes, 17 of which caused missense mutations. Of these, the SDHC-p.I244V substitution was shown in this study to reduce sensitivity of E. necator to boscalid and fluopyram, whereas the SDHC-p.G25R substitution did not affect SDHI sensitivity. Of the other 15 missense mutations, the SDHC-p.H242R substitution was shown in previous studies to reduce sensitivity of E. necator toward boscalid, whereas the equivalents of the SDHB-p.H242L, SDHC-p.A83V, and SDHD-p.I71F substitutions were shown to reduce sensitivity to SDHIs in other fungi. Generally, only a single amino acid substitution was present in the SDHB, SDHC, or SDHD subunit of E. necator isolates, but missense mutations putatively associated with SDHI resistance were widely distributed in the sampled areas and increased in frequency over time. Finally, isolates that had decreased sensitivity to boscalid or fluopyram were identified but with no or only the SDHC-p.G25R amino acid substitution present in SDHB, SDHC, and SDHD subunits. This suggests that target site mutations probably are not the only mechanism conferring resistance to SDHIs in E. necator.


Assuntos
Inibidores Enzimáticos/farmacologia , Succinato Desidrogenase , Vitis , Colúmbia Britânica , Farmacorresistência Fúngica/genética , Erysiphe , Mutação , Doenças das Plantas/microbiologia , Succinato Desidrogenase/genética
20.
Orphanet J Rare Dis ; 16(1): 512, 2021 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-34906174

RESUMO

BACKGROUND: While classified as a rare condition, a congenital disorder of the corpus callosum (DCC) is one of the most commonly identified brain anomalies in newborns, occurring in 1:4000 live births. Advances in imaging techniques have improved early diagnosis for children, yet adults with a DCC-who may present with extreme heterogeneity in cause and impact-often experience challenges in receiving a definitive diagnosis and accessing appropriate services and supports. To date, the dearth of evidence documenting the lived experiences of adults with DCC has made it difficult to determine adequate policy and service responses. This exploratory research aims to address this gap by presenting the first qualitative examination of the experiences and impact of complete or partial agenesis of the corpus callosum among adults. RESULTS: Eight face-to-face interviews were conducted with Australian adults, aged 23-72 years, to explore their lived experience. Data was collected in four Australian states from June to August 2017. Thematic and interpretive analyses were employed to analyse data. Three emergent themes described difficulties related to: (1) reactions to the diagnosis; (2) access to supports and key life domains, and (3) identifying as an adult. Interview analysis described lived experiences typically outlining a lifetime of exclusion and misunderstanding from family, educators and disability and health support services. CONCLUSIONS: This paper contributes to filling the knowledge gap around a rare congenital brain disorder affecting the lives of adults. Findings confirm a considerable lack of information and support for adults living with corpus callosum disorders. Greater professional and societal understanding is needed to improve access to the key life domains of education, employment and social inclusion for adults with a DCC. To instigate truly effective change, social research must tackle the issues of applicability and impact to alter the dominance of uninformed practices, hindered by prevailing myths. This research paves the way for further phenomenological studies in which participant narrative is vital. Further research will elicit stronger policy and service responses for all current and emerging adults with a DCC.


Assuntos
Pessoas com Deficiência , Malformações do Sistema Nervoso , Adulto , Idoso , Agenesia do Corpo Caloso , Austrália , Criança , Corpo Caloso , Humanos , Recém-Nascido , Pessoa de Meia-Idade , Adulto Jovem
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