AMPs

AMP
  • 文章类型: Journal Article
    这项研究使用基于观察的ADL技能评估来调查急性卒中后VFL患者的ADL表现。运动和过程技能评估。AMPS在初步评估和≥11周随访时对58例轻度中风的成年人进行了治疗,有(n=16)和没有VFL(n=42),在13个月的时间里。采用AMPS指南中关于临床相关差异的0.30个logits用于确定初始评估和随访中各组ADL表现的差异。研究发现,ADL运动和过程得分在初始评估中没有显着差异。该研究在初始评估和随访中观察到VFL和非VFL之间的ADL运动和过程评分之间没有临床相关差异,但从初始评估到随访,两组的ADL运动和过程评分均有临床相关改善。VFL对具有轻度中风的那些的ADL性能没有额外的负面影响,并且不妨碍ADL性能随时间的改善。
    This study investigated the ADL performances of people with VFL after an acute stroke using an observation-based evaluation of ADL skills, the Assessment of Motor and Process Skills. The AMPS was administered on initial assessment and at ≥11 weeks follow-up on 58 adults with a mild stroke, with (n = 16) and without VFL (n = 42), over a 13-month period. The AMPS guidelines on clinically relevant difference of 0.30 logits were used to determine the differences of the groups\' ADL performance on initial assessment and follow-up. The study found that the ADL motor and process scores did not differ significantly on initial assessment. The study observed no clinically relevant difference between the ADL motor and process scores of between the VFL and non-VFL on initial assessment and follow-up but demonstrated clinically relevant improvements in ADL motor and process scores of both groups from initial assessment to follow-up. VFL does not have an additional negative impact on ADL performance of those with a mild stroke and does not impede improvement of ADL performance over time.
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  • 文章类型: Comparative Study
    抗菌肽(AMP)的L-对映体对蛋白水解降解敏感;然而,预期AMP的D-对映体提供改善的蛋白水解抗性。本研究旨在比较研究其体外抗菌活性,胰蛋白酶和血清稳定性,毒性,L-对映体牛NK2A(L-NK2A)及其D-对映体NK2A(D-NK2A)的体内抗菌活性。阴离子脂质体中D-NK2A和L-NK2A的圆二色光谱显示α-螺旋结构,D-NK2A的α-螺旋构象是L-NK2A的镜像。D-NK2A和L-NK2A均显示最小的体外和体内毒性。RP-HPLC和质谱分析显示D-NK2A,但不是L-NK2A,对胰蛋白酶消化有抵抗力。D-NK2A和L-NK2A对嗜血杆菌显示出相似的体外细菌杀伤活性。当D-NK2A和L-NK2A与血清预孵育时,观察到抗菌活性略微降低。共聚焦和透射电子显微镜发现证实,两种肽均可诱导细菌内膜和外膜的破坏。当与L-NK2A相比时,在急性嗜睡嗜血杆菌败血症的鼠模型中观察到D-NK2A治疗改善的存活。我们得出的结论是,NK2A的抗菌活性和作用方式不是手性特异性的。进一步优化,D-NK2A可能是对抗细菌感染的可行AMP候选物。
    L-enantiomers of antimicrobial peptides (AMPs) are sensitive to proteolytic degradation; however, D-enantiomers of AMPs are expected to provide improved proteolytic resistance. The present study aimed to comparatively investigate the in vitro antibacterial activity, trypsin and serum stability, toxicity, and in vivo antibacterial activity of L-enantiomeric bovine NK2A (L-NK2A) and its D-enantiomeric NK2A (D-NK2A). Circular dichroism spectroscopy of D-NK2A and L-NK2A in anionic liposomes showed α-helical structures and the α-helical conformation of D-NK2A was a mirror image of L-NK2A. Both D-NK2A and L-NK2A displayed minimal in vitro and in vivo toxicities. RP-HPLC and mass spectrometry analyses revealed that D-NK2A, but not L-NK2A, was resistant to trypsin digestion. D-NK2A and L-NK2A showed similar in vitro bacterial killing activities against Histophilus somni. Slightly reduced antibacterial activity was observed when D-NK2A and L-NK2A were pre-incubated with serum. Confocal and transmission electron microscopic findings confirmed that both peptides induced disruption of bacterial inner- and outer-membranes. Improved survivals with D-NK2A treatment were observed when compared to L-NK2A in a murine model of acute H. somni septicemia. We conclude that antibacterial activity and mode of action of NK2A are not chiral specific. With further optimization, D-NK2A may be a viable AMP candidate to combat bacterial infections.
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  • 文章类型: Clinical Trial Protocol
    The number of persons living with a chronic condition is increasing worldwide. Conditions are considered chronic when lasting 1 year or more and requiring ongoing medical attention and/or limiting activities of daily living (ADL). Besides medical treatment, physical exercise to improve body functions is recommended and prescribed. However, improvements in body functions do not necessarily improve ability to perform ADL. Thus, it is necessary to develop interventions aiming directly at enhancing ADL ability. As a part of the research programme \'A Better Everyday Life\', the first version of the ABLE intervention programme was developed.
    This feasibility study examine the perceived value and acceptability of the ABLE programme by evaluating the fidelity, reach, dose and potential outcomes using a pretest and post-test design involving 30 persons living with chronic conditions. Qualitative interviews among occupational therapists delivering and participants receiving the ABLE programme will be conducted to explore aspects affecting the intervention.
    The results will form the base for refinement of the ABLE programme and planning of a large-scale randomised controlled trial investigating the effect of the programme on self-reported and observed ADL ability. Dissemination will include peer-reviewed publications and presentations at national and international conferences.
    7 November 2017: v ersion 1.0. 19 February 2018: v ersion 2.0.
    NCT03335709; Pre-results.
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  • 文章类型: Journal Article
    BACKGROUND: Subgroups of women with fibromyalgia likely show different activity of daily living (ADL) skill deficits. Identifying ineffective ADL skills of significance in the \'typical\' woman with fibromyalgia will promote the planning of targeted occupational therapy interventions aiming at improving ADL ability.
    OBJECTIVE: To identify frequently reported ADL skill deficits of significance in subgroups of women with fibromyalgia who have decreased ADL motor ability in combination with decreased or competent ADL process ability.
    METHODS: Women with fibromyalgia were evaluated with the Assessment of Motor and Process Skills (AMPS). If they demonstrated decreased ADL motor ability, the calibrated AMPS raters identified and reported ineffective ADL skills of significance. Descriptive comparisons were made between subgroups displaying either decreased or competent ADL process ability.
    RESULTS: Moves, calibrates, bends, reaches, and paces were identified as the most frequently reported ineffective ADL skills of significance within the total sample (n = 188). The ADL process skills items organise and accommodate were identified as ineffective only in the subgroup with decreased ADL process ability (n = 105).
    CONCLUSIONS: It is suggested that clinicians modify the individual\'s tasks and environments to compensate for identified ineffective ADL skills and to use the AMPS to differentiate interventions in women with fibromyalgia.
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  • 文章类型: Journal Article
    This study examined the functional and psychological outcomes of a 2-week, group-based multicomponent treatment course that targeted patients with chronic widespread pain. Patients (192 included in the intention-to-treat population), all fulfilling the 1990 American College of Rheumatology classification criteria for fibromyalgia, were consecutively recruited from a tertiary care setting and randomized (1:1) to either the treatment course or a waiting list control group. Co-primary outcomes were the Assessment of Motor and Process Skills (AMPS) and SF-36 Mental Composite Score (MCS) evaluated at 6-month follow-up. Primary endpoints were partly achieved with a statistically significant improvement in AMPS activities of daily living motor (group mean difference: 0.20 [95% confidence interval (CI): 0.09 to 0.31] logits; P=.0003) and AMPS activities of daily living process (0.20 [95% CI: 0.12 to 0.27] logits, P<.0001) ability measures, whereas no difference in the SF-36 MCS (1.14 [95% CI: -1.52 to 3.81], P=.40) was observed. Individual patient responses varied, and the proportion of patients achieving a clinically meaningful change of at least 0.3 logits on the AMPS seemed influenced by the reporting of a pending social welfare application at the time of enrollment. We conclude that even in fibromyalgia patients presenting with a substantial disability established over many years, the 2-week multicomponent treatment course resulted in observable improvement of functional ability in a subgroup of patients at 6-month follow-up. This improvement, however, was not reflected in secondary patient reported outcomes, including scores of self-reported functional ability on standardized questionnaires. We suggest including observation-based assessments in future clinical trials focusing on functional outcomes in patients with fibromyalgia.
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  • 文章类型: Journal Article
    目的:评估,在进行更大的审判之前,研究过程的可行性,以确定基于职业的战略培训的有效性,以产生对受过训练的现实世界行为的变化,并确定是否将培训效果转移到现实世界影响的衡量标准,包括参与日常生活,可以实现。
    方法:部分随机对照试验,干预前和干预后评估由评估者掩盖治疗组。
    方法:测试发生在一个研究机构,在参与者家中进行干预。
    方法:患有慢性创伤性脑损伤(TBI)的人(N=13),实验组为7岁(平均年龄,42.6y;TBI后的平均时间,9.8岁;4名男性)和6名控制臂(平均年龄,40.5y;TBI后的平均时间,10.8岁;3名男子),在干预阶段之前和之后立即进行评估。
    方法:基于职业的策略培训,对日常职业表现的认知取向(CO-OP)的改编版本,每周提供两次1小时的会议,为期10周。
    方法:加拿大职业绩效评估,执行不力问卷,梅奥-波特兰适应性清单-4参与指数,以及运动和过程技能评估。
    结果:所有参与者都可以接受研究过程(测试和干预)。发现远转移的证据,因为实验组在绩效和对未训练目标的绩效评分的满意度方面显着高于对照组(P<0.05),并报告参与水平增加(P<0.01)。
    结论:研究结果必须谨慎解释,因为样本很小,并且与未治疗对照进行比较。然而,他们认为培训是可行的,需要进行更大规模的试验.
    OBJECTIVE: To evaluate, before undertaking a larger trial, feasibility of the study processes to determine the effectiveness of occupation-based strategy training for producing changes on trained real-world behaviors, and to determine whether far transfer of training effects to measures of real-world impact, including participation in everyday life, could be achieved.
    METHODS: Partially randomized controlled trial with pre- and postintervention assessments done by assessors masked to the treatment arm.
    METHODS: Testing occurred at a research institute, interventions at participants\' homes.
    METHODS: People (N=13) with chronic traumatic brain injury (TBI), 7 in the experimental group (mean age, 42.6y; mean time post-TBI, 9.8y; 4 men) and 6 in the control arm (mean age, 40.5y; mean time post-TBI, 10.8y; 3 men), were assessed immediately before and after the intervention phase.
    METHODS: Occupation-based strategy training, an adapted version of the Cognitive Orientation to daily Occupational Performance (CO-OP), was provided in two 1-hour sessions per week for 10 weeks.
    METHODS: Canadian Occupational Performance Measure, Dysexecutive Questionnaire, Mayo-Portland Adaptability Inventory-4 Participation Index, and Assessment of Motor and Process Skills.
    RESULTS: The study processes (testing and intervention) were acceptable to all participants. Evidence of far transfer was found as the experimental group improved significantly more than the control group on performance and satisfaction with performance ratings on untrained goals (P<.05), and reported increased levels of participation (P<.01).
    CONCLUSIONS: Findings must be interpreted with caution since the sample is small and comparisons are made with a no-treatment control. Nevertheless, they suggest that the training is feasible and a larger trial warranted.
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  • 文章类型: Evaluation Study
    BACKGROUND: Limitations in performing activities of daily living (ADL) are important indicators of health and overall wellness, yet relatively few studies specifically identify the ADL abilities of people living with HIV/AIDS (PHAs). Given the wide range of abilities and ages of PHAs, there is an urgent need to utilize an assessment of ADL ability that can validly evaluate those who are very able, as well as those who are very disabled, without the presence of ceiling or floor effects, to provide sensitive measures to detect change.
    OBJECTIVE: The purpose of this study was to gather preliminary evidence of the validity of using the Assessment of Motor and Process Skills (AMPS) with PHAs.
    METHODS: By utilizing existing data records of PHAs from the international AMPS database, we explored (a) demographic factors; (b) person response validity by examining person and individual item goodness-of-fit to the AMPS measurement model; and (c) trends in ADL abilities of PHAs.
    RESULTS: There were 137 data records in the international AMPS database (0.08% of the database). Goodness-of-fit analyses revealed that >90% of the individuals in the sample fit AMPS measurement model and >99% of the individual item ratings fit the model. More than 80% of the data record had ADL motor abilities that were significantly lower than age expectations, and 67% had ADL process ability measures that were significantly lower than age expectations.
    CONCLUSIONS: The findings indicate that the AMPS is a valid measure of ADL ability for PHAs. Coupled with the lower than expected number of AMPS data records for PHAs and the significant ADL ability challenges that were encountered by this sample, this pilot study may indicate that PHAs encounter barriers to accessing rehabilitation services and/or may not receive referrals until significant ADL challenges are encountered.
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