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1.
BMC Med Educ ; 23(1): 280, 2023 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-37095475

RESUMO

BACKGROUND: During workplace-based clinical placements, best practice assessment states students should expect consistency between assessors rating their performance. To assist clinical educators (CEs) to provide consistent assessment of physiotherapy student performance, nine paediatric vignettes depicting various standards of simulated student performance, as assessed by the Assessment of Physiotherapy Practice (APP), were developed. The APP defines adequate on the global rating scale (GRS) as the minimally acceptable standard for an entry-level physiotherapist. The project aimed to evaluate consistency of paediatric physiotherapy educators assessing simulated student performance using the APP GRS. METHODS: Three paediatric scenarios representing neurodevelopment across three age ranges, infant, toddler and adolescent, were developed and scripted that depicted a 'not adequate', 'adequate' and 'good-excellent' performance based on the APP GRS. An expert panel (n = 9) conducted face and content validation. Once agreement was reached for all scripts, each video was filmed. A purposive sample of physiotherapists providing paediatric clinical education in Australia were invited to participate in the study. Thirty-five CEs, with minimum 3-years clinical experience and had supervised a student within the past year, were sent three videos at four-week intervals. Videos depicted the same clinical scenario, however performance varied with each video. Participants rated the performance on the four categories: 'not adequate', 'adequate', 'good' and 'excellent' Consistency among raters was assessed using percentage agreement to establish reliability. RESULTS: The vignettes were assessed a combined total of 59 times. Across scenarios, percentage agreement at the not adequate level was 100%. In contrast, the adequate scenarios for the Infant, Toddler and Adolescent video failed to meet the 75% agreement level. However, when combining adequate or good-excellent, percentage agreement was > 86%. The study demonstrated strong consensus when comparing not adequate to adequate or better performance. Importantly, no performance scripted as not adequate was passed by any assessor. CONCLUSIONS: Experienced educators demonstrate consistency in identifying not adequate from adequate or good-excellent performance when assessing a simulated student performance using the APP. Recommendation for practice: These validated video vignettes will be a valuable training tool to improve educator consistency when assessing student performance in paediatric physiotherapy.


Assuntos
Competência Clínica , Estudantes , Humanos , Criança , Adolescente , Reprodutibilidade dos Testes , Avaliação Educacional , Modalidades de Fisioterapia/educação
2.
Curr Hypertens Rep ; 24(8): 267-284, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35536464

RESUMO

PURPOSE OF REVIEW: There is a growing evidence base describing population health approaches to improve blood pressure control. We reviewed emerging trends in hypertension population health management and present implementation considerations from an intervention called Team-supported, Electronic health record-leveraged, Active Management (TEAM). By doing so, we highlight the role of population health managers, practitioners who use population level data and to proactively engage at-risk patients, in improving blood pressure control. RECENT FINDINGS: Within a population health paradigm, we discuss telehealth-delivered approaches to equitably improve hypertension care delivery. Additionally, we explore implementation considerations and complementary features of team-based, telehealth-delivered, population health management. By leveraging the unique role and expertise of a population health manager as core member of team-based telehealth, health systems can implement a cost-effective and scalable intervention that addresses multi-level barriers to hypertension care delivery. We describe the literature of telehealth-based population health management for patients with hypertension. Using the TEAM intervention as a case study, we then present implementation considerations and intervention adaptations to integrate a population health manager within the health care team and effectively manage hypertension for a defined patient population. We emphasize practical considerations to inform implementation, scaling, and sustainability. We highlight future research directions to advance the field and support translational efforts in diverse clinical and community contexts.


Assuntos
Hipertensão , Saúde da População , Telemedicina , Pressão Sanguínea , Atenção à Saúde , Humanos , Hipertensão/epidemiologia , Hipertensão/terapia
3.
J Neurochem ; 156(3): 273-289, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32654149

RESUMO

Neuropeptide Y (NPY) is an endogenous peptide of the central and enteric nervous systems which has gained significant interest as a potential neuroprotective agent for treatment of neurodegenerative disease. Amyotrophic lateral sclerosis (ALS) is an aggressive and fatal neurodegenerative disease characterized by motor deficits and motor neuron loss. In ALS, recent evidence from ALS patients and animal models has indicated that NPY may have a role in the disease pathogenesis. Increased NPY levels were found to correlate with disease progression in ALS patients. Similarly, NPY expression is increased in the motor cortex of ALS mice by end stages of the disease. Although the functional consequence of increased NPY levels in ALS is currently unknown, NPY has been shown to exert a diverse range of neuroprotective roles in other neurodegenerative diseases; through modulation of potassium channel activity, increased production of neurotrophins, inhibition of endoplasmic reticulum stress and autophagy, reduction of excitotoxicity, oxidative stress, neuroinflammation and hyperexcitability. Several of these mechanisms and signalling pathways are heavily implicated in the pathogenesis of ALS. Therefore, in this review, we discuss possible effects of NPY and NPY-receptor signalling in the ALS disease context, as determining NPY's contribution to, or impact on, ALS disease mechanisms will be essential for future studies investigating the NPY system as a therapeutic strategy in this devastating disease.


Assuntos
Esclerose Lateral Amiotrófica/metabolismo , Neuropeptídeo Y/metabolismo , Animais , Humanos , Receptores de Neuropeptídeo Y/metabolismo
4.
Med Care ; 59(Suppl 3): S242-S251, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-33976073

RESUMO

BACKGROUND: Rapid approaches to collecting and analyzing qualitative interview data can accelerate discovery timelines and intervention development while maintaining scientific rigor. We describe the application of these methods to a program designed to improve care coordination between the Veterans Health Administration (VHA) and community providers. METHODS: Care coordination between VHA and community providers can be challenging in rural areas. The Telehealth-based Coordination of Non-VHA Care (TECNO Care) intervention was designed to improve care coordination among VHA and community providers. To ensure contextually appropriate implementation of TECNO Care, we conducted preimplementation interviews with veterans, VHA administrators, and VHA and community providers involved in community care. Using both a rapid approach and qualitative analysis, an interviewer and 1-2 note-taker(s) conducted interviews. RESULTS: Over 5 months, 18 stakeholders were interviewed and we analyzed these data to identify how best to deliver TECNO Care. Responses relevant to improving care coordination include health system characteristics; target population; metrics and outcomes; challenges with the current system; and core components. Veterans who frequently visit VHA or community providers and are referred for additional services are at risk for poor outcomes and may benefit from additional care coordination. Using these data, we designed TECNO Care to include information on VHA services and processes, assist in the timely completion of referrals, and facilitate record sharing. CONCLUSION: Rapid qualitative analysis can inform near real-time intervention development and ensure relevant content creation while setting the stage for stakeholder buy-in. Rigorous and timely analyses support the delivery of contextually appropriate, efficient, high-value patient care.


Assuntos
Serviços de Saúde Comunitária/organização & administração , Administração dos Cuidados ao Paciente/métodos , Participação dos Interessados/psicologia , Telemedicina/métodos , Serviços de Saúde para Veteranos Militares/organização & administração , Implementação de Plano de Saúde , Humanos , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Pesquisa Qualitativa , Serviços de Saúde Rural/organização & administração , Estados Unidos , United States Department of Veterans Affairs , Veteranos/psicologia
5.
Alcohol Alcohol ; 55(5): 540-546, 2020 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-32599612

RESUMO

AIMS: Comorbid alcohol use and depression have the highest prevalence among emerging adults and are associated with a number of consequences. Self-medication theory posits individuals with depression use alcohol to cope with their negative emotions. Preliminary work has investigated the social context of depression-related drinking and found that solitary drinking is a risky, atypical behaviour in emerging adulthood that is associated with alcohol misuse. However, it is unknown about what is unfolding in the moment that is driving depression-related drinking in solitary contexts. Accordingly, we used an experimental study to examine if shame mediated the association between depression and in-lab alcohol craving. METHODS: Emerging adults (N = 80) completed a shame induction followed by an alcohol cue exposure in either a solitary or social condition. We used moderated mediation to test hypotheses. RESULTS: Consistent with hypotheses, conditional indirect effects supported the mediation of depression and alcohol craving through shame among those in the solitary condition, but not in the social condition. There was no support for guilt as a mediator. CONCLUSION: Our study demonstrates that shame is a specific emotional experience that contributes to solitary drinking among depressed emerging adults. It is important to use these results to inform interventions that directly target solitary contexts and shame.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Fissura , Depressão/complicações , Depressão/psicologia , Solidão , Vergonha , Adolescente , Adulto , Feminino , Culpa , Humanos , Masculino , Fatores de Risco , Interação Social , Estudantes , Inquéritos e Questionários , Adulto Jovem
6.
J Med Internet Res ; 22(8): e19216, 2020 08 04.
Artigo em Inglês | MEDLINE | ID: mdl-32687474

RESUMO

BACKGROUND: Though maintaining physical conditioning and a healthy weight are requirements of active military duty, many US veterans lose conditioning and rapidly gain weight after discharge from active duty service. Mobile health (mHealth) interventions using wearable devices are appealing to users and can be effective especially with personalized coaching support. We developed Stay Strong, a mobile app tailored to US veterans, to promote physical activity using a wrist-worn physical activity tracker, a Bluetooth-enabled scale, and an app-based dashboard. We tested whether adding personalized coaching components (Stay Strong+Coaching) would improve physical activity compared to Stay Strong alone. OBJECTIVE: The goal of this study is to compare 12-month outcomes from Stay Strong alone versus Stay Strong+Coaching. METHODS: Participants (n=357) were recruited from a national random sample of US veterans of recent wars and randomly assigned to the Stay Strong app alone (n=179) or Stay Strong+Coaching (n=178); both programs lasted 12 months. Personalized coaching components for Stay Strong+Coaching comprised of automated in-app motivational messages (3 per week), telephone-based human health coaching (up to 3 calls), and personalized weekly goal setting. All aspects of the enrollment process and program delivery were accomplished virtually for both groups, except for the telephone-based coaching. The primary outcome was change in physical activity at 12 months postbaseline, measured by average weekly Active Minutes, captured by the Fitbit Charge 2 device. Secondary outcomes included changes in step counts, weight, and patient activation. RESULTS: The average age of participants was 39.8 (SD 8.7) years, and 25.2% (90/357) were female. Active Minutes decreased from baseline to 12 months for both groups (P<.001) with no between-group differences at 6 months (P=.82) or 12 months (P=.98). However, at 12 months, many participants in both groups did not record Active Minutes, leading to missing data in 67.0% (120/179) for Stay Strong and 61.8% (110/178) for Stay Strong+Coaching. Average baseline weight for participants in Stay Strong and Stay Strong+Coaching was 214 lbs and 198 lbs, respectively, with no difference at baseline (P=.54) or at 6 months (P=.28) or 12 months (P=.18) postbaseline based on administrative weights, which had lower rates of missing data. Changes in the number of steps recorded and patient activation also did not differ by arm. CONCLUSIONS: Adding personalized health coaching comprised of in-app automated messages, up to 3 coaching calls, plus automated weekly personalized goals, did not improve levels of physical activity compared to using a smartphone app alone. Physical activity in both groups decreased over time. Sustaining long-term adherence and engagement in this mHealth intervention proved difficult; approximately two-thirds of the trial's 357 participants failed to sync their Fitbit device at 12 months and, thus, were lost to follow-up. TRIAL REGISTRATION: ClinicalTrials.gov NCT02360293; https://clinicaltrials.gov/ct2/show/NCT02360293. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.2196/12526.


Assuntos
Exercício Físico/fisiologia , Aplicativos Móveis/normas , Telemedicina/métodos , Adulto , Feminino , Humanos , Masculino , Motivação , Veteranos
7.
BMC Med Educ ; 19(1): 32, 2019 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-30678662

RESUMO

BACKGROUND: Reliable interpretation of the Assessment of Physiotherapy Practice (APP) tool is necessary for consistent assessment of physiotherapy students in the clinical setting. However, since the APP was implemented, no study has reassessed how consistently a student performance is evaluated against the threshold standards. Therefore, the primary aim of this study was to determine the consistency among physiotherapy educators when assessing a student performance using the APP tool. METHODS: Physiotherapists (n = 153) from Australia with a minimum 3 years clinical experience and who had supervised a physiotherapy student within the past 12-months were recruited. Three levels of performance (not adequate, adequate, good/excellent) were scripted and filmed across outpatient musculoskeletal, neurorehabilitation, cardiorespiratory and inpatient musculoskeletal. In the initial phase of the study, scripts were written by academic staff and reviewed by an expert panel (n = 8) to ensure face and content validity as well as clinical relevance prior to filming. In the second phase of the study, pilot testing of the vignettes was performed by clinical academics (n = 16) from Australian universities to confirm the validity of each vignette. In the final phase, study participants reviewed one randomly allocated vignette, in their nominated clinical area and rated the student performance including a rationale for their decision. Participants were blinded to the performance level. Percentage agreement between participants was calculated for each vignette with an a priori percentage agreement of 75% considered acceptable. RESULTS: Consensus among educators across all areas was observed when assessing a performance at either the 'not adequate' (97%) or the 'good/excellent' level (89%). When assessing a student at the 'adequate' level, consensus reduced to 43%. Similarly, consensus amongst the 'not adequate' and 'good/excellent' ranged from 83 to 100% across each clinical area; while agreement was between 33 and 46% for the 'adequate' level. Percent agreement between clinical educators was 89% when differentiating 'not adequate' from 'adequate' or better. CONCLUSION: Consistency is achievable for 'not adequate' and 'good/excellent' performances, although, variability exists at an adequate level. Consistency remained when differentiating an 'adequate' or better from a 'not adequate' performance.


Assuntos
Competência Clínica , Avaliação Educacional/normas , Especialidade de Fisioterapia/educação , Austrália , Consenso , Docentes , Humanos , Reprodutibilidade dos Testes
8.
J Clin Microbiol ; 55(8): 2400-2405, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28515219

RESUMO

Clarithromycin-based regimens are commonly used as a first-line therapy for Helicobacter pylori-positive patients; however, resistance to clarithromycin has led to treatment failures. The aim of this study was to evaluate the feasibility of using stool samples to detect the presence of H. pylori DNA while concurrently detecting mutations associated with resistance to clarithromycin. For this purpose, total DNA was extracted from 294 raw stool specimens from H. pylori-positive and -negative patients. TaqMan real-time PCR amplification was used to detect the presence of H. pylori as well as to predict the phenotype of the organism and the related outcome for patients treated with clarithromycin. Clarithromycin resistance was determined upon analysis of the PCR result. Patients were also tested by a urea breath test and were subjected to esophagogastroduodenoscopy, followed by histology, culture, and a rapid urease test, in order to obtain a consensus patient infection status. Of 294 total stool samples, 227 were deemed true positive. The sensitivity of H. pylori detection by PCR was 93.8%. Of 213 true-positive samples that were sequenced, 36.2% showed point mutations associated with clarithromycin resistance (A2142C, A2142G, A2143G). The final correlation of the mutant genotypes as determined by sequencing with the eradication of infection was 86%. We found that Helicobacter pylori DNA can be detected in human stool specimens with high sensitivity and can therefore be used to determine the presence of the bacterium without obtaining a biopsy sample. Moreover, genotypic resistance to clarithromycin can be predicted without obtaining a biopsy sample, facilitating the choice of the right therapeutic approach.


Assuntos
Antibacterianos/farmacologia , Claritromicina/farmacologia , Farmacorresistência Bacteriana , Infecções por Helicobacter/diagnóstico , Helicobacter pylori/efeitos dos fármacos , Helicobacter pylori/isolamento & purificação , Reação em Cadeia da Polimerase/métodos , DNA Bacteriano/análise , DNA Bacteriano/genética , Fezes/microbiologia , Infecções por Helicobacter/microbiologia , Humanos , Técnicas de Diagnóstico Molecular/métodos , Sensibilidade e Especificidade
10.
Crit Care Nurs Q ; 39(3): 214-26, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27254638

RESUMO

Heart failure impacts a multitude of individuals each year. Treatment is based on the progression of the disease and severity of symptoms. Cardiac transplant is the gold standard treatment of advanced heart failure, although the availability of organs limits the number of transplants received each year. Postoperative care and monitoring for cardiac transplant is complex and requires specialized nurses and providers at transplant centers for successful outcomes. This article outlines cardiac transplant from preoperative care through transplant, as well as posttransplant monitoring and care including discharge. Special attention is focused on management in the intensive care unit setting and potential complications that can occur in the immediate postoperative period. Interventions for potential complications are also highlighted.


Assuntos
Enfermagem de Cuidados Críticos , Transplante de Coração , Unidades de Terapia Intensiva , Cuidados Pós-Operatórios/métodos , Complicações Pós-Operatórias/prevenção & controle , Rejeição de Enxerto/prevenção & controle , Transplante de Coração/enfermagem , Humanos , Terapia de Imunossupressão/métodos , Terapia de Imunossupressão/enfermagem , Monitorização Fisiológica/métodos , Monitorização Fisiológica/enfermagem , Cuidados Pós-Operatórios/enfermagem , Complicações Pós-Operatórias/enfermagem
11.
Crit Care Nurs Q ; 39(3): 207-13, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27254637

RESUMO

Heart failure is a progressive and fatal disease impacting millions of American each year. Divided into stages, heart failure presents with progressive symptoms requiring a wide range of medical treatments. Treatments include diet and lifestyle changes, medications, electrical therapies (defibrillator and/or cardiac resynchronization therapy), as well as mechanical circulatory support. Cardiac transplant is the gold standard treatment of heart failure, although the availability of donors limits the utility of a cardiac transplant. This article outlines heart failure treatments and the indications, contraindications, and pretransplant evaluation for a cardiac transplant. Information on the allocation of donor hearts and donor characteristics is also included for the reader.


Assuntos
Insuficiência Cardíaca/tratamento farmacológico , Transplante de Coração/normas , Doadores de Tecidos , Insuficiência Cardíaca/classificação , Insuficiência Cardíaca/dietoterapia , Coração Auxiliar , Humanos , Doadores de Tecidos/provisão & distribuição
13.
Methods Mol Biol ; 2024 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-39331341

RESUMO

Autophagy is a critical cellular process involved in the degradation and recycling of cytoplasmic components, playing a dual role in cancer by either promoting cell survival or facilitating cell death. In glioblastoma (GB), autophagy has been implicated in resistance to the chemotherapeutic agent temozolomide (TMZ). This study presents a novel method to accurately measure autophagy flux in TMZ-resistant glioblastoma cells, combining advanced imaging techniques with biochemical assays. By quantifying key autophagy markers such as LC3-II and SQSTM1, our approach provides detailed insights into the dynamic processes of autophagosome formation and clearance under therapeutic stress. This method advances our understanding of autophagy in GB chemoresistance and has significant implications for the development of autophagy-targeted therapies. The ability to monitor and manipulate autophagy flux in real time offers a promising avenue for monitoring and understanding TMZ resistance and improving patient outcomes in glioblastoma treatment.

14.
bioRxiv ; 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39253475

RESUMO

Temozolomide (TMZ) resistance in glioblastoma (GB) poses a significant therapeutic challenge. We developed a TMZ-resistant (TMZ-R) U251 GB model, revealing distinct differences in cell viability, apoptosis, autophagy, and lipid metabolism between TMZ-R and non-resistant (TMZ-NR) cells. TMZ-NR cells exhibited heightened sensitivity to TMZ-induced apoptosis, while TMZ-R cells-maintained viability. Autophagy flux was completely inhibited in TMZ-R cells, indicated by LC3ßII and SQSTM1 accumulation. BCL2L13, which showed higher expression in TMZ-R cells, demonstrated increased interaction with Ceramide Synthase 6 (CerS6) and reduced interaction with Ceramide Synthase 2 (CerS2) in TMZ-NR cells. BCL2L13 knockdown (KD) disrupted autophagy flux, decreasing autophagosome accumulation in TMZ-R cells while increasing it in TMZ-NR cells. These changes contributed to altered ceramide profiles, where TMZ-R cells displayed elevated levels of Cer 16:0, 18:0, 20:0, 22:0, 24:0, and 24:1. Our findings highlight BCL2L13 and altered ceramide metabolism as potential therapeutic targets to overcome TMZ resistance in GB.

15.
Sci Transl Med ; 16(767): eadl3438, 2024 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-39356746

RESUMO

Oxidative stress has long been implicated in Parkinson's disease (PD) pathogenesis, although the sources and regulation of reactive oxygen species (ROS) production are poorly defined. Pathogenic mutations in the gene encoding leucine-rich repeat kinase 2 (LRRK2) are associated with increased kinase activity and a greater risk of PD. The substrates and downstream consequences of elevated LRRK2 kinase activity are still being elucidated, but overexpression of mutant LRRK2 has been associated with oxidative stress, and antioxidants reportedly mitigate LRRK2 toxicity. Here, using CRISPR-Cas9 gene-edited HEK293 cells, RAW264.7 macrophages, rat primary ventral midbrain cultures, and PD patient-derived lymphoblastoid cells, we found that elevated LRRK2 kinase activity was associated with increased ROS production and lipid peroxidation and that this was blocked by inhibitors of either LRRK2 kinase or NADPH oxidase 2 (NOX2). Oxidative stress induced by the pesticide rotenone was ameliorated by LRRK2 kinase inhibition and was absent in cells devoid of LRRK2. In a rat model of PD induced by rotenone, a LRRK2 kinase inhibitor prevented the lipid peroxidation and NOX2 activation normally seen in nigral dopaminergic neurons in this model. Mechanistically, LRRK2 kinase activity was shown to regulate phosphorylation of serine-345 in the p47phox subunit of NOX2. This, in turn, led to translocation of p47phox from the cytosol to the membrane-associated gp91phox (NOX2) subunit, activation of the NOX2 enzyme complex, and production of ROS. Thus, LRRK2 kinase activity may drive cellular ROS production in PD through the regulation of NOX2 activity.


Assuntos
Modelos Animais de Doenças , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina , NADPH Oxidase 2 , Estresse Oxidativo , Doença de Parkinson , Espécies Reativas de Oxigênio , Rotenona , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/metabolismo , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/genética , Animais , Humanos , Espécies Reativas de Oxigênio/metabolismo , Doença de Parkinson/metabolismo , Doença de Parkinson/patologia , Doença de Parkinson/genética , Células HEK293 , Estresse Oxidativo/efeitos dos fármacos , Camundongos , NADPH Oxidase 2/metabolismo , NADPH Oxidase 2/genética , Rotenona/farmacologia , Ratos , Peroxidação de Lipídeos , Fosforilação/efeitos dos fármacos , Células RAW 264.7 , Ratos Sprague-Dawley , NADPH Oxidases
16.
J Clin Periodontol ; 40(4): 349-57, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23414245

RESUMO

AIMS: The aim of this single-site, randomized, controlled, double-blind, 3-arm parallel study was to determine the effectiveness of a prophylaxis paste containing 15% calcium sodium phosphosilicate (CSPS; NovaMin(®) ) with and without fluoride in reducing dentine hypersensitivity immediately after a single application and 28 days following dental scaling and root planing. MATERIALS & METHODS: Overall, 151 subjects were enrolled in this study. All subjects received a scaling and root planing procedure followed by a final prophylaxis step using one of three different prophylaxis pastes: Test-A (15% NovaMin(®) and NaF), Test-B (15% NovaMin(®) ) and a control. Dentine hypersensitivity was assessed by tactile stimulus (Yeaple Probe(®) ) and by air blast (Schiff scale) at baseline, immediately after and 28 days after a prophylaxis procedure. One hundred and forty-nine subjects completed the study. RESULTS: Subjects having received the test prophylaxis pastes showed statistically lower (anova, p < 0.05) dentine hypersensitivity compared with the control group immediately after the prophylaxis procedure (Yeaple Probe(®) : Test-A = 20.9 ± 12.6, Test-B = 22.7 ± 12.9, Control=11.2 ± 3.1; Schiff score: Test-A = 1.1 ± 0.6, Test-B = 1.1 ± 0.6, Control = 2.0 ± 0.7) and after 28 days (Yeaple probe: Test-A = 21.5 ± 11.9, Test-B = 20.6 ± 11.3, Control = 11.8 ± 6.0; Schiff score: Test-A = 1.0 ± 0.6, Test-B = 1.0 ± 0.6, Control = 2.0 ± 0.7). CONCLUSIONS: In conclusion, the single application of both fluoridated and non-fluoridated prophylaxis pastes containing 15% CSPS (NovaMin(®) ) provided a significant reduction of dentine hypersensitivity up to at least 28 days.


Assuntos
Profilaxia Dentária/métodos , Dessensibilizantes Dentinários/uso terapêutico , Sensibilidade da Dentina/prevenção & controle , Vidro , Cremes Dentais/uso terapêutico , Adolescente , Adulto , Idoso , Análise de Variância , Raspagem Dentária/efeitos adversos , Raspagem Dentária/métodos , Dessensibilizantes Dentinários/química , Sensibilidade da Dentina/etiologia , Método Duplo-Cego , Feminino , Vidro/química , Humanos , Masculino , Pessoa de Meia-Idade , Fluoreto de Sódio/uso terapêutico , Inquéritos e Questionários , Fatores de Tempo , Cremes Dentais/química , Adulto Jovem
17.
Adv Neurobiol ; 30: 225-253, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36928853

RESUMO

The histories of targeted treatment trials in fragile X syndrome (FXS) are reviewed in animal studies and human trials. Advances in understanding the neurobiology of FXS have identified a number of pathways that are dysregulated in the absence of FMRP and are therefore pathways that can be targeted with new medication. The utilization of quantitative outcome measures to assess efficacy in multiple studies has improved the quality of more recent trials. Current treatment trials including the use of cannabidiol (CBD) topically and metformin orally have positive preliminary data, and both of these medications are available clinically. The use of the phosphodiesterase inhibitor (PDE4D), BPN1440, which raised the level of cAMP that is low in FXS has very promising results for improving cognition in adult males who underwent a controlled trial. There are many more targeted treatments that will undergo trials in FXS, so the future looks bright for new treatments.


Assuntos
Canabidiol , Síndrome do Cromossomo X Frágil , Metformina , Masculino , Adulto , Animais , Humanos , Síndrome do Cromossomo X Frágil/tratamento farmacológico , Síndrome do Cromossomo X Frágil/metabolismo , Metformina/uso terapêutico , Canabidiol/uso terapêutico
18.
CBE Life Sci Educ ; 22(3): ar30, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37279088

RESUMO

Learning assistant (LA) programs train undergraduate students to foster peer discussion and facilitate active-learning activities in undergraduate science, technology, engineering, and mathematics (STEM) classes. Students who take courses that are supported by LAs demonstrate better conceptual understanding, lower failure rates, and higher satisfaction with the course. There is less work, however, on the impact that participating in LA programs has on the LAs themselves. The current study implements a pretest-posttest design to assess changes in LAs' metacognition and motivation to succeed in STEM across their first and second quarters as an LA. Our findings suggest that participating in this program may help LAs become more reflective learners, as was demonstrated by an increase in their scores on the Metacognitive Awareness Inventory (MAI) after the first quarter. LAs also showed increases on the Intrinsic Motivation and Self-Efficacy subscales of the Science Motivation Questionnaire. Students who participated in the program for an additional quarter continued to show increases in their MAI scores and maintained the gains that were observed in their motivation. Taken together, this work suggests that, in addition to benefiting the learner, LA programs may have positive impacts on the LAs themselves.


Assuntos
Metacognição , Humanos , Motivação , Estudantes , Aprendizagem , Aprendizagem Baseada em Problemas
19.
J Dev Behav Pediatr ; 44(7): e470-e475, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37556593

RESUMO

BACKGROUND: Fragile X syndrome (FXS) and fetal alcohol syndrome disorders are both common causes of intellectual disability in children. When both conditions are present in the same individual, the resultant phenotype may make identification of clinical issues and management challenging. CASE PRESENTATION: In this case report, we present a case of triplets who had significant in utero alcohol exposure; 2 of whom also have FXS and the other not having the fragile X mutation. The siblings with FXS have subtle differences in the physical phenotype compared with the other one, who has prominent features of partial fetal alcohol syndrome instead. However, all 3 siblings have intellectual impairment (although this is more severe in the 2 with FXS), meet diagnostic criteria for autism spectrum disorder, and present with severe behavioral challenges. The clinical presentation of the 2 siblings with FXS is much more severe as compared to a child with FXS alone, and this is likely due to the additive effect of in utero alcohol exposure and environmental factors. We discuss the combination of these 2 pathologies and how this can affect the overall clinical presentation. CONCLUSION: In the management of children with FXS, evaluation for other risk factors that can have neurobehavioral sequelae is important, and these can affect clinical presentation and prognosis.


Assuntos
Transtorno do Espectro Autista , Transtornos do Espectro Alcoólico Fetal , Síndrome do Cromossomo X Frágil , Deficiência Intelectual , Transtornos Relacionados ao Uso de Substâncias , Criança , Feminino , Gravidez , Humanos , Síndrome do Cromossomo X Frágil/complicações , Síndrome do Cromossomo X Frágil/diagnóstico , Transtorno do Espectro Autista/etiologia , Transtorno do Espectro Autista/complicações , Transtornos do Espectro Alcoólico Fetal/diagnóstico , Diagnóstico Duplo (Psiquiatria) , Deficiência Intelectual/genética
20.
Sci Rep ; 13(1): 1202, 2023 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-36681686

RESUMO

Due to its unique physical and chemical properties, bismuth is an attractive candidate for a wide range of applications such as battery anodes, radiation shielding, and semiconductors, to name a few. This work presents the electrodeposition of mechanically stable and homogenous bismuth films at micron-scale thicknesses. A simple one-step electrodeposition process using either a pulse/reverse or direct current source yielded thick, homogenous, and mechanically stable bismuth films. Morphology, electrochemical behavior, adhesion, and mechanical stability of bismuth coatings plated with varying parameters were characterized via optical profilometry, cyclic voltammetry, electron microscopy, and tribology. Scratch testing on thick electroplated coatings (> 100 µm) revealed similar wear resistance properties between the pulse/reverse plated and direct current electroplated films. This study presents a versatile bismuth electroplating process with the possibility to replace lead in radiation shields with an inexpensive, non-toxic metal, or to make industrially relevant electrocatalytic devices.


Assuntos
Bismuto , Proteção Radiológica , Bismuto/química , Galvanoplastia , Eletrodos
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