Informal Caregivers' Perceptions of Facilitators of Successful Weight Management for People With Spinal Cord Injury.

IMPORTANCE: Informal caregivers have valuable insights that occupational therapists can use to prevent and manage problems that may arise in people with spinal cord injury (SCI) because of a lack of physical activity and poor nutrition. OBJECTIVE: To assess caregiver-identified facilitators of weight management in people with SCI. DESIGN: Descriptive qualitative design using semistructured interviews and thematic analysis. SETTING: Regional SCI Care Model System and Veterans Health Administration. PARTICIPANTS: Informal caregivers (n = 24) of people with SCI. OUTCOMES AND MEASURES: Facilitators of successful weight management in care recipients with SCI. RESULTS: Four themes were identified as weight management facilitators: healthy eating (subthemes: food content, self-control, self-management, and healthy preinjury lifestyle), exercise and therapy (subthemes: occupational and physical therapy, receiving assistance, and resources for exercise), accessibility, and leisure activity or activities of daily living, the latter described as a source of activity (because of required energy expenditure) to facilitate weight management for people with more severe injuries. CONCLUSIONS AND RELEVANCE: These findings can inform the development of successful weight management plans by occupational therapists by incorporating feedback from informal caregivers. Because caregivers are involved in many of the facilitators identified, occupational therapists should communicate with the dyad about sourcing accessible places to increase physical activity and assessing in-person assistance and assistive technology needs to promote healthy eating and physical activity. Occupational therapists can use informal caregiver-identified facilitators of weight management to help prevent and manage problems for people with SCI secondary to limited activity and poor nutrition. What This Article Adds: Occupational therapy practitioners provide therapeutic intervention to people with SCI; this includes attention to weight management from the time of initial injury throughout their lives. This article is novel in the presentation of informal caregivers' perceptions about successful facilitators of weight management among people with SCI, which is important because caregivers are intimately involved in the daily activities of people with SCI and can be a liaison for occupational therapists and other health care providers about ways to facilitate healthy eating and physical activity.

Efficacy of a Remote Train-the-Trainer Model for Wheelchair Skills Training Administered by Clinicians: A Cohort Study With Pre- vs Posttraining Comparisons.

OBJECTIVE: To test the hypotheses that remote training improves trainer confidence and when these trainers train others the capacity and confidence of the trainees improves. DESIGN: Cohort study with pre- vs posttraining comparisons. SETTING: Four spinal cord injury model systems centers. PARTICIPANTS: Convenience sample of 7 clinician trainers and 19 able-bodied trainees (N=26). INTERVENTIONS: Part 1 focused on trainer skill acquisition with self-study of the Wheelchair Skills Program Manual and instructional videos focused on motor learning, spotting, and 10 intermediate and advanced wheelchair skills. Trainers practiced in pairs, receiving asynchronous feedback on video recordings from a remote instructor. Part 2 included additional video modules targeted at "how to" assess and train others in 4 wheelchair skills: gets over obstacle, ascends low curb, ascends high curb with caregiver assistance, and performs stationary wheelie. Upon completion, the trainers each provided 1:1 in-person training for 2-3 trainees. MAIN OUTCOME MEASURES: Trainer confidence was assessed using the Self-Efficacy on Assessing, Training, and Spotting Test for Manual Wheelchairs. Trainee capacity ("Can you do it?") and confidence ("How confident are you?") were evaluated using the Wheelchair Skills Test Questionnaire (WST-Q). RESULTS: Trainer confidence increased for assessment (P=.003) and training (P=.002) but not spotting (P=.056). Trainee 4-item median (interquartile range) WST-Q scores significantly increased with training for capacity (13% [6-31] to 88% [75-88], P<.001) and confidence (13% [0-31] to 88% [81-100], P<.001). CONCLUSIONS: Remote training improves trainers' confidence with respect to wheelchair skills testing and training and the wheelchair skills capacity and confidence of their trainees.

Effectiveness of Group Wheelchair Maintenance Training for People with Spinal Cord Injury: A Randomized Controlled Trial.

OBJECTIVE: To assess the effectiveness of group wheelchair maintenance training and investigate participant characteristics associated with responsiveness to training. DESIGN: Randomized controlled trial with an immediate group and a waitlist control group (WLCG) who received the intervention after a 6-month delay. SETTING: Four Spinal Cord Injury Model Systems Centers. PARTICIPANTS: Manual (MWC; n=80) and power wheelchair (PWC; n=67) users with spinal cord injury (N=147). INTERVENTIONS: Two 90-minute structured wheelchair maintenance training program classes with 12-20 people per class and separate classes for MWC and PWC users. Each class included in-person hands-on demonstrations and practice of wheelchair maintenance. MAIN OUTCOME MEASURES: Separate analysis was completed for MWC and PWC users using the Wheelchair Maintenance Training Questionnaire (WMT-Q) capacity (ability to complete), performance (frequency of completion) and knowledge at baseline, 1 month, 6 months, 6 months pretraining (WLCG only), and 1 year (immediate only). RESULTS: After the intervention, participants in both the immediate and WLCG improved in maintenance capacity (MWC and PWC, P<.001) and performance (MWC and PWC, P<.001) with training. Only PWC users improved knowledge of wheelchair maintenance (P<.001). For both WLCGs (MWC and PWC), there was no difference between the 6-month pretraining time point and baseline. MWC users who responded to training had lower WMT-Q scores for all domains, whereas this was only the case for knowledge for PWC users. CONCLUSIONS: Group wheelchair skills training is effective at improving capacity to complete maintenance and performance of maintenance activities for MWC and PWC users, even in a cohort of experienced wheelchair users. For MWC users, improvements were tied to lower WMT-Q scores at baseline, whereas PWC users improved in capacity and performance independent of baseline score. Delivering this training in a structured group format has a lower cost, which might improve adoption into clinical practice.

High-resolution longitudinal N- and O-glycoprofiling of human monocyte-to-macrophage transition.

Protein glycosylation impacts the development and function of innate immune cells. The glycophenotypes and the glycan remodelling associated with the maturation of macrophages from monocytic precursor populations remain incompletely described. Herein, label-free porous graphitised carbon-liquid chromatography-tandem mass spectrometry (PGC-LC-MS/MS) was employed to profile with high resolution the N- and O-glycome associated with human monocyte-to-macrophage transition. Primary blood-derived CD14+ monocytes were differentiated ex vivo in the absence of strong anti- and proinflammatory stimuli using a conventional 7-day granulocyte-macrophage colony-stimulating factor differentiation protocol with longitudinal sampling. Morphology and protein expression monitored by light microscopy and proteomics validated the maturation process. Glycomics demonstrated that monocytes and macrophages display similar N-glycome profiles, comprising predominantly paucimannosidic (Man1-3GlcNAc2Fuc0-1, 22.1-30.8%), oligomannosidic (Man5-9GlcNAc2, 29.8-35.7%) and α2,3/6-sialylated complex-type N-glycans with variable core fucosylation (27.6-39.1%). Glycopeptide analysis validated conjugation of these glycans to human proteins, while quantitative proteomics monitored the glycoenzyme expression levels during macrophage differentiation. Significant interperson glycome variations were observed suggesting a considerable physiology-dependent or heritable heterogeneity of CD14+ monocytes. Only few N-glycome changes correlated with the monocyte-to-macrophage transition across donors including decreased core fucosylation and reduced expression of mannose-terminating (paucimannosidic-/oligomannosidic-type) N-glycans in macrophages, while lectin flow cytometry indicated that more dramatic cell surface glycan remodelling occurs during maturation. The less heterogeneous core 1-rich O-glycome showed a minor decrease in core 2-type O-glycosylation but otherwise remained unchanged with macrophage maturation. This high-resolution glycome map underpinning normal monocyte-to-macrophage transition, the most detailed to date, aids our understanding of the molecular makeup pertaining to two vital innate immune cell types and forms an important reference for future glycoimmunological studies.

My Vocational Situation (MVS): Case Example and Psychometric Review.

This case report provides an overview of the psychometric properties and clinical utility of the My Vocational Situation (MVS) instrument. The accompanying hypothetical case description illustrates how clinicians could use the MVS to evaluate vocational preferences and outcomes and how the MVS can be used to inform treatment planning and rehabilitation decision making. The information contained in this report is intended to familiarize clinicians with the administration and scoring of the MVS, the psychometric information necessary to interpret results obtained from the MVS, and how the results could be used to provide comprehensive, patient-centered care. It is important to note that the information provided represents only a sample of the available research literature on the MVS.

Effectiveness of Group Wheelchair Skills Training for People With Spinal Cord Injury: A Randomized Controlled Trial.

OBJECTIVE: To assess the effectiveness of group wheelchair skills training to elicit improvements in wheelchair skills. DESIGN: Randomized double-blinded controlled trial. SETTING: Four Spinal Cord Injury Model Systems Centers. PARTICIPANTS: Manual wheelchair users with spinal cord injury (N=114). INTERVENTION: Six 90-minute group Wheelchair Skills Training Program (WSTP) classes or two 1-hour active control sessions with 6 to 10 people per group. MAIN OUTCOME MEASURES: Baseline (t1) and 1-month follow-up (t2) Wheelchair Skills Test Questionnaire (WST-Q) (Version 4.2) for capacity and performance and Goal Attainment Scale (GAS) score. RESULTS: Follow-up was completed by 79 participants (WSTP: n=36, active control: n=43). No differences were found between missing and complete cases. Many users were highly skilled at baseline with a WST-Q capacity interquartile range of 77% to 97%. There were no differences between groups at baseline in WST-Q measures or demographics. Compared with the active control group, the WSTP group improved in WST-Q capacity advanced score (P=.02) but not in WST-Q capacity or WST-Q performance total scores (P=.068 and P=.873, respectively). The average GAS score (0% at t1) for the WSTP group at t2 was 65.6%±34.8%. Higher GAS scores and WST-Q capacity scores were found for those who attended more classes and had lower baseline skills. CONCLUSIONS: Group training can improve advanced wheelchair skills capacity and facilitate achievement of individually set goals. Lower skill levels at baseline and increased attendance were correlated with greater improvement.

Wheelchair Skills Capacity and Performance of Manual Wheelchair Users With Spinal Cord Injury.

OBJECTIVES: To describe the wheelchair skills capacity and performance of experienced manual wheelchair users with spinal cord injury (SCI) and to assess measurement properties of the Wheelchair Skills Test (WST) and Wheelchair Skills Test Questionnaire (WST-Q). DESIGN: Cross-sectional descriptive study involving within-subject comparisons. SETTING: Four Spinal Cord Injury Model Systems centers. PARTICIPANTS: Manual wheelchair users with SCI (N=117). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: WST and WST-Q version 4.2 as well as measures for Confidence, Basic Mobility, Independence, Ability to Participate, Satisfaction, and Pain Interference. RESULTS: The median (interquartile range) values for WST capacity, WST-Q capacity, and WST-Q performance were 81.0% (69.0%-90.0%), 88.0% (77.0%-97.0%), and 76.0% (66.3%-84.0%). The total WST capacity scores correlated significantly with the total WST-Q capacity scores (r=.76; P<.01) and WST-Q performance scores (r=.55; P<.01). The total WST-Q capacity and WST-Q performance scores were correlated significantly (r=.63; P<.001). Success rates were <75% for 10 of the 32 (31%) individual skills on the WST and 6 of the 32 (19%) individual skills on the WST-Q. Regression models for the total WST and WST-Q measures identified statistically significant predictors including age, sex, body mass index, and/or level of injury. The WST and WST-Q measures correlated significantly with the Confidence, Basic Mobility, Independence, or Pain Interference measures. CONCLUSIONS: Many people with SCI are unable to or do not perform some of the wheelchair skills that would allow them to participate more fully. More wheelchair skills training may enhance participation and quality of life of adults with SCI. The WST and WST-Q exhibit good content, construct, and concurrent validity.

Service-Delivery Competencies in Home and Community-Based Services Needed to Achieve Person-Centered Planning and Practices: A Systematic Review.

Home and community-based services (HCBS) assist people with disabilities and older adults to remain in their homes. Direct support professionals and care managers who facilitate the development of support plans need to employ person-centered approaches to ensure services are tailored to peoples' needs and preferences. The aims were to identify the key competencies needed for delivery of person-centered supports and examine the relationship between HCBS and its' outcomes in the United States. We used the competencies developed by the National Center on advancing Person-Centered Practices and Systems as a framework. We conducted a systematic review to identify the skills necessary to deliver person-centered HCBS. We coded 43 articles and identified seven competencies. Most frequently mentioned competencies related to culturally informed practice, cultivating connections, and promoting rights, choice, and control. Policy makers should create training standards for person-centered practices to ensure that people receiving HCBS live the lives they want.

Wheelchair service provision education for healthcare professional students, healthcare personnel and educators across low- to high-resourced settings: a scoping review protocol.

PURPOSE: Appropriate wheelchair provision is necessary for addressing participation barriers experienced by individuals with mobility impairments. Health care professionals involved in the wheelchair service provision process require a specific set of skills and knowledge to enable wheelchair use that meets individual posture, mobility and daily living requirements. However, inconsistencies exist in academic programmes globally about providing comprehensive education and training programmes. The planned scoping review aims to review and synthesize the global literature on wheelchair service provision education for healthcare professional students, healthcare personnel and educators offered by universities, organizations and industries. METHODS: This scoping review will be guided by the Joanna Briggs Institute (JBI) methodological framework. Comprehensive literature searches will be conducted on various global electronic databases on health to seek out how wheelchair service provision education is organized, integrated, implemented and evaluated. Two independent reviewers will perform eligibility decisions and key data extractions. Data from selected studies will be extracted and analysed using conventional content analysis. Information related to wheelchair service provision education including curriculum development, content, teaching methods, evaluation and models of integration will be synthesized. IMPLICATIONS AND DISSEMINATION: The planned scoping review will be the first to examine all aspects of wheelchair service provision education across professionals, settings and countries. We anticipate that results will inform the content of a Wheelchair Educators' Package, and if appropriate, a follow-up systematic review. An article reporting the results of the scoping review will be submitted for publication to a scientific journal.Implications for RehabilitationA comprehensive examination of wheelchair service provision education could help develop strategies to address the unmet need for wheelchair services globally.Findings for this review will facilitate the planning and development of an evidence-based education package that could bridge the existing knowledge gaps related to safe and effective wheelchair service provision among health professionals involved.This review will also inform the potential barriers and enablers for effective integration and implementation of wheelchair service provision education worldwide.

Wheelchair service provision education for healthcare professional students, healthcare personnel and educators across low- to high-resourced settings: a scoping review.

PURPOSE: This review aimed to collate and summarize available research literature about wheelchair service provision education available to healthcare professional students, healthcare personnel and educators across low- to high-resourced settings. METHODS: The Joanna Briggs Institute methodological steps for scoping reviews were followed. Included studies were mainly sourced from Medline, Embase, CINAHL, Scopus, Academic Search Complete and ProQuest. Independent title, abstract and full-text screening with defined inclusion and exclusion criteria was performed. All screening and extraction were performed independently by two authors. A thematic approach was used to synthesize results. Data extracted from included studies were charted according to a template that we created. The study quality was also appraised. RESULTS: A total of 25 articles were included (11, 36% from high-income settings) with 12 (48%) observational studies and 13 (52%) experimental studies. The literature addressed three main topics: (1) assessing wheelchair service provision knowledge, (2) implementing training interventions using in-person, online and/or hybrid learning approaches and (3) describing current wheelchair service provision education globally. The most frequently reported training programs used were the Wheelchair Skills Program and the World Health Organization Wheelchair Service Training Package - Basic Level. CONCLUSION: Limited information has been published about the integration of wheelchair content into the curricula of professional rehabilitation programs. Efforts to build international partnerships, improve the quality and currency of training programs and build resources that can assist educators in the integration of wheelchair-related content into professional rehabilitation programs should be prioritized.Implications for RehabilitationThis is the first review that examined and synthesized the current state of wheelchair service provision education for rehabilitation students and personnel across low- to high-income countries.Findings from this review indicate that there is limited information about the integration of wheelchair-related content into professional rehabilitation programs.Efforts to build international partnerships, standardize wheelchair service provision content and evaluation and integrate training into professional rehabilitation programs worldwide should be prioritized.

Informal caregivers' self-identified roles in facilitating health-promoting behaviours for weight management in community-dwelling care recipients living with spinal cord injury in the United States.

Health providers often focus on secondary conditions and spend less time prioritising overweight/obesity care. Informal caregivers are well positioned to facilitate health-promoting behaviours of healthy eating and physical activity among community-dwelling care recipients with spinal cord injury (SCI) for prevention and management of overweight/obesity. Literature has typically focused on caregiver adjustment post-injury and burden related to their roles in secondary condition care. The novel objective of this study was to describe informal caregivers' perspectives of their roles in facilitating health-promoting weight management behaviours, healthy eating and physical activity, for care recipients with SCI. This was a qualitative study that used semi-structured interviews with informal caregivers for data collection in 2019. Braun & Clarke's established thematic phases were used for analysis. Participants included informal caregivers of individuals with SCI living in the community (n = 24). Caregivers identified eight themes to describe their role in facilitating weight management for care recipients. Themes included: (1) meal planning/shopping, (2) meal preparation/cooking, (3) using portion control, (4) serving/feeding, (5) helping the care recipient with physical activity and/or leisure activities, (6) mutually participating in weight management activities, (7) providing motivation and encouragement and (8) being an information liaison. In summary, informal caregivers have an intimate understanding of care recipients' needs and have insights on obstacles and enablers to health-promoting behaviours, making their involvement in facilitating weight management in individuals with SCI vital. Caregivers self-identified several significant roles for promoting weight management. This is especially valuable for conditions such as overweight/obesity for which prevention and treatment involve health-promoting behaviours that need consistent attention in the community setting. It is important to ensure that informal caregivers and care recipients have the information required in order to facilitate healthy eating and physical activity in persons with SCI and have opportunities for mutual dyadic participation when both partners are interested.

Positive and negative ways that informal caregivers are affected by weight and weight management efforts for care recipients with spinal cord injury.

PURPOSE: To understand how informal caregivers are affected by weight and weight management of care recipients with SCI. MATERIALS AND METHODS: In-depth qualitative interviews were conducted with 24 informal caregivers of community-dwelling Veterans and civilians with SCI. Thematic analysis was conducted. RESULTS: Three themes described how the care recipient's weight management efforts impacted the caregiver, including: (1) motivation and involvement in weight management efforts for themselves, (2) emotional well-being (positive and negative aspects), and (3) physical tasks (both ease and burden). Caregivers may experience emotional and/or physical burden by taking on extra caregiving tasks to help with care recipient's weight management. Caregivers also may experience positive impacts from the care recipient's weight management efforts, regardless of who drove the efforts, including improvement in their own motivation and involvement in weight management, enhanced emotional well-being (happiness for and with the care-recipient), and making physical caregiving tasks easier. CONCLUSIONS: Rehabilitation providers can use these findings to educate dyads about potential impacts of weight management efforts for the care recipient, specifying areas that may cause burden but emphasizing the potential benefits for both recipient and caregiver. Integrating this education into rehabilitation practice may reduce overweight-related problems with function and declines in disability among dyads.Implications for RehabilitationInformal caregivers experience both positive and negative consequences with regard to weight management for individuals with SCI.Helping their loved one with weight management can facilitate informal caregivers' involvement in their own weight management activities.Findings may offer guidance to healthcare and rehabilitation providers as they incorporate weight management into education programs for informal caregivers of persons with SCI.Integrating this education into rehabilitation practice may reduce or delay overweight-related problems with function and declines in disability among dyads.

Wheelchair backs that support the spinal curves: Assessing postural and functional changes.

Objective: To compare outcomes using a wheelchair back designed to support the natural seated spinal curves versus an upholstered back that promotes posterior pelvic tilt and thoracolumbar kyphosis.Design: Cross-over intervention.Setting: Two free-standing spinal cord injury (SCI) model system hospitals.Participants: Fifty adults with motor complete SCI C6-T4, between the ages of 18-60 years who use a manual wheelchair for mobility were recruited from a convenience sample.Intervention: Each participant's wheelchair back support was removed and replaced by an upholstered back and a solid back in randomized order. Postural and functional outcomes, pain, and satisfaction were evaluated using each back.Outcome measures: Seated postural measurements included pelvic angle, spinal angle of kyphosis and linear measurement of spine. Functional outcomes included vertical forward reach, one stroke push, timed forward wheeling, ramp ascent and descent. Numerical pain rating and a satisfaction survey provided input pertaining to both backs.Results: The solid back demonstrated significance in seated postural measurements. Participants using the solid back trended to higher scores in functional outcome measures including vertical forward reach, one stroke push and timed ramp ascent. Participants reported increased satisfaction with comfort and stability with the solid back.Conclusions: This pilot study demonstrated that a wheelchair back, which supports the seated spinal curves improves upright posture, functional reach, and wheelchair propulsion skills. Further research is necessary to demonstrate statistical findings as well as to assess back height and lateral support.

Using remote learning to teach clinicians manual wheelchair skills: a cohort study with pre- vs post-training comparisons.

PURPOSE: To test the hypothesis that remote learning to teach clinicians manual wheelchair skills is efficacious. MATERIALS AND METHODS: A convenience sample of therapists (physical and occupational) and students were enrolled in pairs in a cohort study with pre- versus post-training comparisons. The intervention was a hybrid of self-study and hands-on practice paired with remote feedback for ten intermediate and advanced manual wheelchair skills. Participants practiced with self-selected frequency and duration, uploading a session log and video(s) to an online platform. A remote trainer provided asynchronous feedback prior to the next practice session. Capacity and confidence in completing the ten skills were evaluated using the Wheelchair Skills Test Questionnaire (WST-Q). Knowledge of wheelchair skills training and motor learning was assessed using a 62-item Knowledge Test. Secondary outcome measures included skill achievement, as confirmed by submitted video recordings, and participant feedback about the training. RESULTS: Across 41participants, scores were higher at follow-up compared to baseline for WST-Q capacity (73.9 ± 19.1 vs 16.8 ± 15.6, p < 0.001), WST-Q confidence (80.1 ± 12.2 vs 47.6 ± 18.2, p = 0.003) and knowledge (70.8 ± 7.5 vs 67.0 ± 5.4, p = 0.004). CONCLUSIONS: Remote learning can increase wheelchair skills capacity and confidence as well as knowledge about such training and assessment. This model should be further investigated as a delivery method for training rehabilitation professionals. CLINICAL TRIAL REGISTRATION NUMBER: NCT01807728.Implications for rehabilitationWheelchair skills training is one of the 8 steps of wheelchair provision as outlined by the World Health Organization.Wheelchair skills are not a core part of most clinical curriculums and many clinicians cite a lack of resources and uncertainty on how to implement wheelchair skills training into practice as major barriers to providing such training.Remote learning offers the benefits of structured wheelchair skills training with expert feedback on an individual's own schedule that is not afforded by one-day "bootcamp"-type courses or on-the-job training, which are how many clinicians currently learn wheelchair skills.In a sample of physical and occupational therapists and students, remote learning was effective at increasing capacity and confidence to perform manual wheelchair skills as well as knowledge of wheelchair training.

RESNA position on the application of dynamic seating.

Dynamic Seating is an intervention used as a part of a manual or power wheelchair to provide movement against resistance in response to client force. This technology can be used for various clinical applications including preventing client injury and equipment breakage; dissipating extensor forces; providing movement for sensory input, calming, and increased alertness; increasing muscle strength, trunk and head control; and other medical benefits. The purpose of this RESNA Position Paper is to provide a definition for this technology in relation to other seating and wheeled mobility technologies as well as present clinical indicators for this seating intervention including literature to substantiate these claims. Although more recent and stronger evidence is needed, existing research does support the application of dynamic seating in numerous clinical scenarios.

High sensitivity and specificity of a 5-analyte protein and microRNA biosignature for identification of active tuberculosis.

OBJECTIVES: Non-sputum-based tests to accurately identify active tuberculosis (TB) disease and monitor response to therapy are urgently needed. This study examined the biomarker capacity of a panel of plasma proteins alone, and in conjunction with a previously identified miRNA signature, to identify active TB disease. METHODS: The expression of nine proteins (IP-10, MCP-1, sTNFR1, RANTES, VEGF, IL-6, IL-10, TNF and Eotaxin) was measured in the plasma of 100 control subjects and 100 TB patients, at diagnosis (treatment naïve) and over the course of treatment (1-, 2- and 6-month intervals). The diagnostic performance of the nine proteins alone, and with the miRNA, was assessed. RESULTS: Six proteins were significantly up-regulated in the plasma of TB patients at diagnosis compared to controls. Receiver operator characteristic curve analysis demonstrated that IP-10 with an AUC = 0.874, sensitivity of 75% and specificity of 87% was the best single biomarker candidate to distinguish TB patients from controls. IP-10 and IL-6 levels fell significantly within one month of commencing treatment and may have potential as indicators of a positive response to therapy. The combined protein and miRNA panel gave an AUC of 1.00. A smaller panel of only five analytes (IP-10, miR-29a, miR-146a, miR-99b and miR-221) showed an AUC = 0.995, sensitivity of 96% and specificity of 97%. CONCLUSIONS: A novel combination of miRNA and proteins significantly improves the sensitivity and specificity as a biosignature over single biomarker candidates and may be useful for the development of a non-sputum test to aid the diagnosis of active TB disease.

Developing new TB biomarkers, are miRNA the answer?

Efforts to reduce the global TB burden are hindered by the lack of simple, reliable non-sputum based diagnostics. To date studies investigating the biomarker potential of circulating host proteins and mRNA have not shown sufficient diagnostic utility. Recently, there has been increasing interest in circulating miRNA as a biomarker of TB disease. This review examined all published miRNA-TB biomarker studies to determine if a reproducible miRNA signature of TB disease could be elucidated. From 15 miRNA profiling studies, 894 miRNA differentially expressed between TB patients and healthy controls were identified in at least one study. Of these, 143 miRNA were validated by qPCR with 53 differentially expressed between TB patients and controls. Interestingly, only 8 of these miRNA were identified in 2 or more studies, and no consensus on a reproducible miRNA signature for identification of TB disease could be identified. TB disease is clearly associated with a wide breadth of differentially expressed miRNA. This review highlights our recent progress and the multiple factors, including environment, source of tissue, ethnicity and extent of TB disease that may influence miRNA expression. Coordinated efforts are required to validate identified targets in multiple populations to progress miRNA biomarker development.

Learning new movements after paralysis: Results from a home-based study.

Body-machine interfaces (BMIs) decode upper-body motion for operating devices, such as computers and wheelchairs. We developed a low-cost portable BMI for survivors of cervical spinal cord injury and investigated it as a means to support personalized assistance and therapy within the home environment. Depending on the specific impairment of each participant, we modified the interface gains to restore a higher level of upper body mobility. The use of the BMI over one month led to increased range of motion and force at the shoulders in chronic survivors. Concurrently, subjects learned to reorganize their body motions as they practiced the control of a computer cursor to perform different tasks and games. The BMI allowed subjects to generate any movement of the cursor with different motions of their body. Through practice subjects demonstrated a tendency to increase the similarity between the body motions used to control the cursor in distinct tasks. Nevertheless, by the end of learning, some significant and persistent differences appeared to persist. This suggests the ability of the central nervous system to concurrently learn operating the BMI while exploiting the possibility to adapt the available mobility to the specific spatio-temporal requirements of each task.