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1.
Nat Commun ; 15(1): 1081, 2024 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-38332008

RESUMO

Walking slowly after stroke reduces health and quality of life. This multi-site, prospective, interventional, 2-arm randomized controlled trial (NCT04121754) evaluated the safety and efficacy of an autonomous neurorehabilitation system (InTandemTM) designed to use auditory-motor entrainment to improve post-stroke walking. 87 individuals were randomized to 5-week walking interventions with InTandem or Active Control (i.e., walking without InTandem). The primary endpoints were change in walking speed, measured by the 10-meter walk test pre-vs-post each 5-week intervention, and safety, measured as the frequency of adverse events (AEs). Clinical responder rates were also compared. The trial met its primary endpoints. InTandem was associated with a 2x larger increase in speed (Δ: 0.14 ± 0.03 m/s versus Δ: 0.06 ± 0.02 m/s, F(1,49) = 6.58, p = 0.013), 3x more responders (40% versus 13%, χ2(1) ≥ 6.47, p = 0.01), and similar safety (both groups experienced the same number of AEs). The auditory-motor intervention autonomously delivered by InTandem is safe and effective in improving walking in the chronic phase of stroke.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Qualidade de Vida , Estudos Prospectivos , Caminhada , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/complicações
3.
J Parkinsons Dis ; 13(7): 1253-1265, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37840504

RESUMO

BACKGROUND: Reduced motor automaticity in Parkinson's disease (PD) negatively impacts the quality, intensity, and amount of daily walking. Rhythmic auditory stimulation (RAS), a clinical intervention shown to improve walking outcomes, has been limited by barriers associated with the need for ongoing clinician input. OBJECTIVE: To assess the feasibility, proof-of-concept, and preliminary clinical outcomes associated with delivering an autonomous music-based digital walking intervention based on RAS principles to persons with PD in a naturalistic setting. METHODS: Twenty-three persons with PD used the digital intervention independently for four weeks to complete five weekly 30-minute sessions of unsupervised, overground walking with music-based cues. The intervention progressed autonomously according to real-time gait sensing. Feasibility of independent use was assessed by examining participant adherence, safety, and experience. Intervention proof-of-concept was assessed by examining spatiotemporal metrics of gait quality, daily minutes of moderate intensity walking, and daily steps. Preliminary clinical outcomes were assessed following intervention completion. RESULTS: Participants completed 86.4% of sessions and 131.1% of the prescribed session duration. No adverse events were reported. Gait speed, stride length, and cadence increased within sessions, and gait variability decreased (p < 0.05). Compared to baseline, increased daily moderate intensity walking (mean Δ= +21.44 minutes) and steps (mean Δ= +3,484 steps) occurred on designated intervention days (p < 0.05). Quality of life, disease severity, walking endurance, and functional mobility were improved after four weeks (p < 0.05). CONCLUSIONS: Study findings supported the feasibility and potential clinical utility of delivering an autonomous digital walking intervention to persons with PD in a naturalistic setting.


Assuntos
Música , Doença de Parkinson , Humanos , Doença de Parkinson/terapia , Qualidade de Vida , Estudos de Viabilidade , Caminhada/fisiologia , Marcha/fisiologia
4.
Neurorehabil Neural Repair ; 37(5): 255-265, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37272500

RESUMO

BACKGROUND: Post-stroke care guidelines highlight continued rehabilitation as essential; however, many stroke survivors cannot participate in outpatient rehabilitation. Technological advances in wearable sensing, treatment algorithms, and care delivery interfaces have created new opportunities for high-efficacy rehabilitation interventions to be delivered autonomously in any setting (ie, clinic, community, or home). METHODS: We developed an autonomous rehabilitation system that combines the closed-loop control of music with real-time gait analysis to fully automate patient-tailored walking rehabilitation. Specifically, the mechanism-of-action of auditory-motor entrainment is applied to induce targeted changes in the post-stroke gait pattern by way of targeted changes in music. Using speed-controlled biomechanical and physiological assessments, we evaluate in 10 individuals with chronic post-stroke hemiparesis the effects of a fully-automated gait training session on gait asymmetry and the energetic cost of walking. RESULTS: Post-treatment reductions in step time (Δ: -12 ± 26%, P = .027), stance time (Δ: -22 ± 10%, P = .004), and swing time (Δ: -15 ± 10%, P = .006) asymmetries were observed together with a 9 ± 5% reduction (P = .027) in the energetic cost of walking. Changes in the energetic cost of walking were highly dependent on the degree of baseline energetic impairment (r =- .90, P < .001). Among the 7 individuals with a baseline energetic cost of walking larger than the normative value of healthy older adults, a 13 ± 4% reduction was observed after training. CONCLUSIONS: The closed-loop control of music can fully automate walking rehabilitation that markedly improves walking after stroke. Autonomous rehabilitation delivery systems that can safely provide high-efficacy rehabilitation in any setting have the potential to alleviate access-related care gaps and improve long-term outcomes after stroke.


Assuntos
Transtornos Neurológicos da Marcha , Música , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Idoso , Caminhada/fisiologia , Marcha/fisiologia , Transtornos Neurológicos da Marcha/reabilitação
5.
Clin Pediatr (Phila) ; 62(7): 743-752, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36495191

RESUMO

The objective of the current study is to identify provider, patient, and family characteristics associated with pediatric advanced practice provider (APP) decisions to refer to a subspecialist for diagnosis and management of attention-deficit/hyperactivity disorder (ADHD). We conducted a cross-sectional electronic survey of pediatric primary care APPs using member lists of professional organizations. T tests and chi-square analysis were conducted to identify group differences. Most respondents rated themselves as comfortable diagnosing and managing ADHD. We found no significant difference between groups based on comfort level or likelihood to refer. APPs working in suburban settings report significantly lower levels of comfort. Self-designation as the practice's primary provider for behavioral/mental health concerns had significantly higher levels of comfort and were less likely to refer. In a limited sample, most APPs reported comfort diagnosing and managing ADHD. Activities to identify and ameliorate gaps in ADHD knowledge and care need to consider this growing part of the workforce.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Humanos , Criança , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Estudos Transversais , Saúde Mental , Atenção Primária à Saúde
6.
IEEE Trans Radiat Plasma Med Sci ; 7(6): 580-586, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38468608

RESUMO

Cadmium zinc telluride (CZT) detectors enable high spatial resolution and high detection efficiency and are utilized for many gamma-ray and X-ray spectroscopy applications. In this article, we describe a stable bonding process and report on the characterization of cross-strip CZT detectors before and after bonding to flexible circuit. The bonding process utilizes gold stud bonding and polymer epoxy technique to bond the flexible circuits to two CZT crystals and form a detector module in an anode-cathode-cathode-anode (ACCA) configuration. The readout electronics is optimized in terms of shaper setting and steering electrode voltage. The average full-width half maximum (FWHM) energy resolution at 662 keV of 110 CZT crystals tested individually was 3.5% ± 0.59% and 4.75% ± 0.48% prebonded and post-bonded, respectively. No depth correction was performed in this study. The average FWHM energy resolution at 662 keV of the scaled-up system with 80 CZT crystals was 4.40% ± 0.53%, indicating the scaled-up readout electronics and stacking of the modules does not deteriorate performance. The proper shielding and grounding of the scaled-up system slightly improved the system-wide performance. The FWHM energy resolution at 511 keV of the scaled-up system was 5.85% ± 0.73%.

7.
PLoS One ; 16(5): e0251420, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33974669

RESUMO

Coastal wetlands are experiencing accelerated rates of fragmentation and degradation due to sea-level rise, sediment deficits, subsidence, and salt-water intrusion. This reduces their ability to provide ecosystem benefits, such as wave attenuation, habitat for migratory birds, and a sink for carbon and nitrogen cycles. A deteriorated back barrier wetland in New Jersey, USA was nourished through thin layer placement (TLP) of dredged sediment in 2016. A field investigation was conducted in 2019 using a cone penetrometer (CPT) to quantify the establishment of soil strength post sediment nourishment compared to adjacent reference sites in conjunction with traditional wetland performance measures. Results show that the nourished area exhibited weaker strengths than the reference sites, suggesting the root system of the vegetation is still establishing. The belowground biomass measurements correlated to the CPT strength measurements, demonstrating that shear strength measured from the cone penetrometer could serve as a surrogate to monitor wetland vegetation trajectories. In addition, heavily trafficked areas underwent compaction from heavy equipment loads, inhibiting the development of vegetation and highlighting how sensitive wetlands are to anthropogenic disturbances. As the need for more expansive wetland restoration projects grow, the CPT can provide rapid high-resolution measurements across large areas supplying government and management agencies with vital establishment trajectories.


Assuntos
Sedimentos Geológicos , Elevação do Nível do Mar , Solo , Áreas Alagadas , Biomassa , Ecossistema , Geologia/instrumentação , Geologia/métodos , Atividades Humanas , New Jersey , Raízes de Plantas/fisiologia , Resistência ao Cisalhamento
8.
Neurorehabil Neural Repair ; 34(11): 986-996, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33040685

RESUMO

BACKGROUND: The rhythm of music can entrain neurons in motor cortex by way of direct connections between auditory and motor brain regions. OBJECTIVE: We sought to automate an individualized and progressive music-based, walking rehabilitation program using real-time sensor data in combination with decision algorithms. METHODS: A music-based digital therapeutic was developed to maintain high sound quality while modulating, in real-time, the tempo (ie, beats per minute, or bpm) of music based on a user's ability to entrain to the tempo and progress to faster walking cadences in-sync with the progression of the tempo. Eleven individuals with chronic hemiparesis completed one automated 30-minute training visit. Seven returned for 2 additional visits. Safety, feasibility, and rehabilitative potential (ie, changes in walking speed relative to clinically meaningful change scores) were evaluated. RESULTS: A single, fully automated training visit resulted in increased usual (∆ 0.085 ± 0.027 m/s, P = .011) and fast (∆ 0.093 ± 0.032 m/s, P = .016) walking speeds. The 7 participants who completed additional training visits increased their usual walking speed by 0.12 ± 0.03 m/s after only 3 days of training. Changes in walking speed were highly related to changes in walking cadence (R2 > 0.70). No trips or falls were noted during training, all users reported that the device helped them walk faster, and 70% indicated that they would use it most or all of the time at home. CONCLUSIONS: In this proof-of-concept study, we show that a sensor-automated, progressive, and individualized rhythmic locomotor training program can be implemented safely and effectively to train walking speed after stroke. Music-based digital therapeutics have the potential to facilitate salient, community-based rehabilitation.


Assuntos
Musicoterapia/instrumentação , Musicoterapia/métodos , Reabilitação do Acidente Vascular Cerebral/instrumentação , Reabilitação do Acidente Vascular Cerebral/métodos , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modalidades de Fisioterapia/instrumentação , Resultado do Tratamento , Caminhada , Velocidade de Caminhada , Dispositivos Eletrônicos Vestíveis
9.
Estuar Coast Shelf Sci ; 229: 1-27, 2019 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-35173355

RESUMO

This paper presents a comprehensive review of shear strength measurements in wetland soils, which can be used to make inferences of the influence of nutrients and sediments on wetland health. Ecosystem restoration is increasing across the Gulf of Mexico and in other coastal systems, with management questions related to soil strength among the most critical to address for the sustainability of restoration programs. An overview of geotechnical engineering principles is provided as a starting point to understand basic soil mechanics concepts of stress, effective stress, pore-water pressure, unit weight, and shear strength. The review of wetland shear strength measurements focuses on the hand-held vane shear, torvane, cone penetrometer, and wetland soil strength tester. This synthesis shows that vane shear measurements can identify the shear strength trend in horizontal and vertical spaces and may be an indicator of wetland soil strength. However, the significant uncertainty of the vane shear measurements may preclude making conclusions about shear strength values without further testing and calibration of the devices. The torvane results show considerable scatter such that it is not recommended for quantitative shear strength measurements. The cone penetrometer represents a technique that is independent of operators and provides a high density of measurements with depth. It signifies the state-of-practice of wetland shear strength testing and is a reasonable tool to measure spatial and temporal variations in soil strength and other geotechnical properties (e.g., pore-water pressure, soil moisture, resistivity, and temperature) in wetlands. The wetland soil strength tester provides insight into the wetland soil resistance in the first 15 cm, which is the zone where most belowground biomass is present. Recommended future research includes evaluating the uncertainty in all in-situ soil strength testing methods, developing relationships between different field instruments, and establishing consistent statistical methods and field-testing procedures to make inferences and assessments.

10.
Biomaterials ; 155: 165-175, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29179132

RESUMO

Current clinically-tested nicotine vaccines have yet shown enhanced smoking cessation efficacy due to their low immunogenicity. Achieving a sufficiently high immunogenicity is a necessity for establishing a clinically-viable nicotine vaccine. This study aims to facilitate the immunogenicity of a hybrid nanoparticle-based nicotine vaccine by rationally incorporating toll-like receptor (TLR)-based adjuvants, including monophosphoryl lipid A (MPLA), Resiquimod (R848), CpG oligodeoxynucleotide 1826 (CpG ODN 1826), and their combinations. The nanoparticle-delivered model adjuvant was found to be taken up more efficiently by dendritic cells than the free counterpart. Nanovaccine particles were transported to endosomal compartments upon cellular internalization. The incorporation of single or dual TLR adjuvants not only considerably increased total anti-nicotine IgG titers but also significantly affected IgG subtype distribution in mice. Particularly, the nanovaccines carrying MPLA+R848 or MPLA+ODN 1826 generated a much higher anti-nicotine antibody titer than those carrying none or one adjuvant. Meanwhile, the anti-nicotine antibody elicited by the nanovaccine adjuvanted with MPLA+R848 had a significantly higher affinity than that elicited by the nanovaccine carrying MPLA+ODN 1826. Moreover, the incorporation of all the selected TLR adjuvants (except MPLA) reduced the brain nicotine levels in mice after nicotine challenge. Particularly, the nanovaccine with MPLA+R848 exhibited the best ability to reduce the level of nicotine entering the brain. Collectively, rational incorporation of TLR adjuvants could enhance the immunological efficacy of the hybrid nanoparticle-based nicotine vaccine, making it a promising next-generation immunotherapeutic candidate for treating nicotine addiction.


Assuntos
Nanopartículas/química , Nicotina/química , Tabagismo/prevenção & controle , Vacinas/sangue , Adjuvantes Imunológicos/química , Animais , Imidazóis/química , Imunoterapia , Lipídeo A/análogos & derivados , Lipídeo A/química , Camundongos , Oligodesoxirribonucleotídeos/química
12.
Lancet Infect Dis ; 15(12): 1398-408, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26511956

RESUMO

BACKGROUND: Respiratory syncytial virus (RSV) is a leading cause of acute lower respiratory tract infections in children. We aimed to assess the safety and efficacy of an anti-RSV monoclonal antibody (motavizumab) in healthy term (≥36 weeks' gestational age) infants for the prevention of medically attended RSV acute lower respiratory tract infections. METHODS: This phase 3, double-blind, placebo-controlled, randomised trial enrolled healthy Native American infants aged 6 months or younger who were born at 36 weeks' gestational age in southwestern USA, on the Navajo Nation, the White Mountain Apache reservation, and the San Carlos Apache Indian reservation. Participants were randomly assigned (2:1) to receive either five monthly intramuscular doses of motavizumab (15 mg/kg) or placebo. They were followed up for 150 days after the first dose, and the primary endpoints were respiratory admission to hospital with a positive result for RSV by RT-PCR and death caused by RSV. Participants were followed up for medically attended wheezing until they reached age 3 years. Analysis was by intention to treat (ITT). This trial is registered with ClinicalTrials.gov, number NCT00121108. FINDINGS: During the autumn seasons (October to December) between 2004 and 2007, 2127 infants of the 2596 infants enrolled were randomly assigned to receive either motavizumab (1417) or placebo (710). After ITT analysis, motavizumab resulted in an 87% relative reduction (relative risk [RR] 0·13, 95% CI 0·08-0·21) in the proportion of infants admitted to hospital with RSV (21 [2%] of 1417 participants who received motavizumab; 80 [11%] of 710 participants who received placebo, p<0·0001). Serious adverse events were less common in particpants taking motavizumab (212 [15%]) than particpants on placebo (148 [21%]). Six deaths occurred in study participants (motavizumab, n=4 [0·3%]; placebo, n=2 [0·3%]); none were deemed to be related to the study product. Hypersensitivity events were more common in patients given motavizumab (208 [14·7%]) than in placebo recipients (87 [12·3%]; p=0·14). There was no effect on rates of medically attended wheezing in children aged 1-3 years (190 [14·9%] of participants randomly assigned to receive motavizumab vs 90 [14·0%] participants randomly assigned to receive placebo). INTERPRETATION: To our knowledge, this is the only trial of an anti-RSV antibody to prevent serious RSV disease in healthy term infants. Motavizumab significantly reduced the RSV-associated inpatient and outpatient burden and set a benchmark for the efficacy of RSV prevention strategies. The findings do not support a direct, generalisable, causal association between RSV lower respiratory tract infection and subsequent long-term wheezing in term infants. FUNDING: MedImmune.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Antivirais/administração & dosagem , Infecções por Vírus Respiratório Sincicial/prevenção & controle , Vírus Sinciciais Respiratórios/imunologia , Pré-Escolar , Método Duplo-Cego , Feminino , Hospitalização , Humanos , Indígenas Norte-Americanos , Lactente , Recém-Nascido , Análise de Intenção de Tratamento , Masculino , Sons Respiratórios/diagnóstico , Sons Respiratórios/fisiopatologia , Infecções por Vírus Respiratório Sincicial/etnologia , Infecções por Vírus Respiratório Sincicial/imunologia , Infecções por Vírus Respiratório Sincicial/virologia , Estados Unidos
14.
N C Med J ; 76(1): 29-33, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25621476

RESUMO

Transforming rural primary care is possible only when leadership is committed to a core set of competencies. Northeastern North Carolina, not always seen as an attractive locale for health professionals, has been developing a primary care medical home that emphasizes team-based care built upon respect, trust, and professionalism.


Assuntos
Mão de Obra em Saúde , Seleção de Pessoal/métodos , Atenção Primária à Saúde , Serviços de Saúde Rural/organização & administração , Humanos , North Carolina , Cultura Organizacional , Inovação Organizacional , Seleção de Pessoal/organização & administração
15.
Infect Dis Ther ; 3(2): 203-14, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25269648

RESUMO

OBJECTIVE: To assess the pharmacokinetics and safety of liquid palivizumab compared with lyophilized palivizumab. METHODS: This phase 2, randomized, double-blind crossover study included premature infants aged ≤6 months born ≤35 weeks gestational age. Patients were randomized in a 1:1 ratio to receive a single 15 mg/kg intramuscular dose of liquid (sequence A group) or lyophilized (sequence B group) palivizumab on Day 0. Patients crossed over to receive the alternate formulation on Day 30. Serum palivizumab and antidrug antibody (ADA) levels were measured on Day 0 (predose), Day 30 (before the dose of alternate formulation), and Day 60 (30 days after the dose of alternate formulation). Patients were followed for safety through Day 60 (30 days after the dose of alternate formulation). RESULTS: A total of 153 infants were randomized into the study (sequence A 75; sequence B 78). Sequence A and sequence B trough serum palivizumab levels were similar on Day 30 (51.7 and 49.1 µg/mL, respectively) and Day 60 (84.8 and 87.2 µg/mL, respectively). The ratio of the geometric means using both Day 30 and Day 60 serum concentrations was 1.040 (90% CI 0.998-1.083), which was within the prespecified bioequivalence range of 0.8-1.25. Adverse events (AEs) were similar between the palivizumab liquid and lyophilized groups and within each treatment sequence. Serious AEs (SAEs) were experienced by 3% of infants in both liquid palivizumab and lyophilized palivizumab groups. None of the SAEs were determined to be related to study drug. Among the 124 infants (81% of total) evaluated for ADA, 2 (1.6%) tested positive for ADA at Day 60 (1 in each of sequence A and B). CONCLUSION: Liquid and lyophilized formulations of palivizumab were bioequivalent with similar safety profiles in infants.

16.
Infect Dis Ther ; 3(2): 339-47, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25156956

RESUMO

INTRODUCTION: To avoid the need for reconstitution required by lyophilized palivizumab, a liquid formulation was developed. This study assessed the safety and antidrug antibodies (ADA) of the liquid formulation of palivizumab compared with the lyophilized formulation. METHODS: This phase 4, randomized, double-blind, multicenter study included children with chronic lung disease of prematurity who were ≤24 months of age and children born prematurely with a gestational age of ≤35 weeks who were ≤6 months of age at randomization. Subjects were randomized 1:1 to 15 mg/kg of either liquid or lyophilized palivizumab administered via intramuscular injection every 30 days for a total of 5 injections. Safety was assessed based on serious adverse events (SAEs). ADA to palivizumab was assessed using blood collected at baseline and at a time point between study days 240 and 300. RESULTS: A total of 413 subjects were included in the analyses. The incidence of SAEs reported was 8.5% with liquid palivizumab and 5.9% with lyophilized palivizumab; none were deemed drug-related. The reported SAEs were consistent with expected conditions in this pediatric age group; there was no increase in respiratory syncytial virus (RSV) disease with liquid palivizumab. At study days 240-300, antipalivizumab antibodies were detected in none of the subjects in the liquid palivizumab group and in 1 subject in the lyophilized group. The true ADA percent positive, based on the upper limit of the 95% confidence interval (CI), was <1.5% for both treatments combined. CONCLUSION: The frequency of detection of ADAs was low. The true ADA percent positive for both treatment groups combined based on the upper limit of the 95% CI was <1.5%. The type and frequency of SAEs reported were as expected, and there was no evidence of an increase in RSV disease with liquid palivizumab.

17.
J Exp Anal Behav ; 101(3): 442-9, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24700533

RESUMO

Behavioral Momentum Theory (BMT) has inspired animal models of treatment relapse. We translated the models of reinstatement and resurgence into clinical procedures to test whether relapse tests would replicate behavior pattern found in basic research. Following multiple schedule baseline reinforcement of a 16-year-old male's problem behavior at equal rates by two therapists, treatment was introduced using a variable-interval, variable-time (VI VT) schedule arrangement with therapists delivering reinforcers at different rates. Despite the differing rates of VI VT reinforcers, the treatment produced comparable reductions in problem behavior. Following successful treatment, the two therapists discontinued treatment and resumed reinforcement of problem behavior at equal rates that constituted a reinstatement of baseline conditions. As predicted by BMT, reinstatement resulted in an immediate return of high rates of problem behavior but was 2.6 times higher for the therapist using the higher rate VI VT treatment. A second treatment phase was implemented followed by a test of resurgence in a single extended extinction session conducted separately for each therapist. The unequal VI VT treatment rates by therapists resulted in 2.1 times greater responding in the resurgence test for the therapist who implemented the higher rate VI VT procedure. These results are consistent with basic research studies and BMT.


Assuntos
Terapia Comportamental/métodos , Modelos Animais de Doenças , Deficiência Intelectual/terapia , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Esquema de Reforço , Pesquisa Translacional Biomédica , Adolescente , Agressão/psicologia , Animais , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/psicologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/terapia , Extinção Psicológica , Humanos , Deficiência Intelectual/psicologia , Masculino , Psicoterapia Múltipla , Recidiva , Reforço por Recompensa
18.
Pediatr Infect Dis J ; 33(7): 703-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24356256

RESUMO

BACKGROUND: This study was conducted to determine whether treatment with motavizumab, an anti-respiratory syncytial virus (RSV) monoclonal antibody, would decrease viral load and improve clinical outcomes in previously healthy term infants hospitalized with RSV lower respiratory tract infection. METHODS: Infants hospitalized with lower respiratory tract infection and a positive RSV test performed locally were randomized to receive 1 intravenous dose of motavizumab (30 or 100 mg/kg) or placebo. Nasal wash samples were tested by real-time reverse transcriptase polymerase chain reaction at a central laboratory to determine viral load. Clinical data were collected during RSV hospitalization and at 12-month follow up. RESULTS: Of 118 infants, 112 were confirmed RSV positive by real-time reverse transcriptase polymerase chain reaction. In each study group, median (range) RSV load (log10 copies/mL) decreased at a similar rate from baseline to study day 7 [motavizumab 30 mg/kg: 8.35 (2.5-9.5) to 5.03 (2.5-6.8); motavizumab 100 mg/kg: 8.22 (5.5-9.7) to 4.25 (2.5-8.0); placebo: 8.02 (6.7-9.8) to 5.17 (2.5-7.3)]. Median (range) duration of hospitalization was 3.05 (0.8-16.0), 2.99 (1.0-25.0) and 2.88 (0.8-11.7) days for the motavizumab 30 mg/kg, motavizumab 100 mg/kg and placebo groups, respectively. Six (8%) motavizumab and 0 placebo recipients were admitted to the intensive care unit and 4 required mechanical ventilation. The incidence of wheezing episodes during the 12-month follow up was comparable for all 3 groups. CONCLUSIONS: Motavizumab had no appreciable effect on RSV viral load measured in the upper respiratory tract of children hospitalized for RSV lower respiratory tract infection. No differences were observed for duration of hospitalization, severity of illness measures or wheezing episodes during 12-month follow up in children treated with motavizumab or placebo.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Antivirais/uso terapêutico , Infecções por Vírus Respiratório Sincicial/tratamento farmacológico , Infecções por Vírus Respiratório Sincicial/patologia , Vírus Sincicial Respiratório Humano/isolamento & purificação , Carga Viral , Feminino , Humanos , Lactente , Recém-Nascido , Tempo de Internação , Estudos Longitudinais , Masculino , Cavidade Nasal/virologia , Placebos/uso terapêutico , Reação em Cadeia da Polimerase em Tempo Real , Infecções por Vírus Respiratório Sincicial/virologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Índice de Gravidade de Doença , Resultado do Tratamento
19.
J Strength Cond Res ; 26(4): 1154-61, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22446680

RESUMO

Injuries suffered by student athletes not only affect their physical ability to perform in sport but also have psychological effects as well. The purpose of this study was to examine student athletes' perceptions, expectations, and satisfaction of the social support provided by their strength and conditioning coach (SC) during the later reconditioning stage of their rehabilitation and their views on the overall level of importance of each type of social support. One hundred and sixty-five participants aged 20.21 ± 1.32 years from 6 Division I Universities in the Midwest region of the USA completed the modified Social Support Survey. The results of a chi-square test assessing the responses for 6 types of social support provided by SCs based on athletes' age, gender, and sport revealed a significant difference (χ2[13,105] = 26.46, p = 0.015) for listening support differing by sport. A significant difference (χ2[13,105] = 267.74, p = 0.010) was also revealed for reported emotional challenge by sport. Results showed that the SC had a significant psychosocial impact on student-athletes' overall psychological well-being during reconditioning. This study provides evidence of the vital psychosocial role that SCs can play during an injured student-athlete's reconditioning program.


Assuntos
Atletas/psicologia , Traumatismos em Atletas/psicologia , Apoio Social , Adolescente , Traumatismos em Atletas/reabilitação , Feminino , Humanos , Masculino , Adulto Jovem
20.
PLoS One ; 7(2): e31316, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22347462

RESUMO

BACKGROUND: Efficiently delivered interventions to reduce HIV, malaria, and diarrhea are essential to accelerating global health efforts. A 2008 community integrated prevention campaign in Western Province, Kenya, reached 47,000 individuals over 7 days, providing HIV testing and counseling, water filters, insecticide-treated bed nets, condoms, and for HIV-infected individuals cotrimoxazole prophylaxis and referral for ongoing care. We modeled the potential cost-effectiveness of a scaled-up integrated prevention campaign. METHODS: We estimated averted deaths and disability-adjusted life years (DALYs) based on published data on baseline mortality and morbidity and on the protective effect of interventions, including antiretroviral therapy. We incorporate a previously estimated scaled-up campaign cost. We used published costs of medical care to estimate savings from averted illness (for all three diseases) and the added costs of initiating treatment earlier in the course of HIV disease. RESULTS: Per 1000 participants, projected reductions in cases of diarrhea, malaria, and HIV infection avert an estimated 16.3 deaths, 359 DALYs and $85,113 in medical care costs. Earlier care for HIV-infected persons adds an estimated 82 DALYs averted (to a total of 442), at a cost of $37,097 (reducing total averted costs to $48,015). Accounting for the estimated campaign cost of $32,000, the campaign saves an estimated $16,015 per 1000 participants. In multivariate sensitivity analyses, 83% of simulations result in net savings, and 93% in a cost per DALY averted of less than $20. DISCUSSION: A mass, rapidly implemented campaign for HIV testing, safe water, and malaria control appears economically attractive.


Assuntos
Diarreia/prevenção & controle , Infecções por HIV/prevenção & controle , Malária/prevenção & controle , Avaliação de Programas e Projetos de Saúde/economia , Análise Custo-Benefício , Custos de Cuidados de Saúde , Humanos , Quênia , Avaliação de Programas e Projetos de Saúde/normas
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