Occupational adaptation as a social process for dementia care teams.

BACKGROUND: Few studies have examined a group's collective experience of occupation using occupational therapy theoretical models. Dementia caregiving requires a diverse team of caregivers who learn and work together to resolve shared challenges. An Occupational Adaptation (OA) theory-based training program for dementia care teams was developed to better understand the team's adaptive process inherent in cooperative caregiving. AIM/OBJECTIVES: Describe how the team learned together and how the training impacted their teamwork. MATERIALS/METHODS: Fourteen employees at one continuing care retirement community underwent OA-based training. During the program, the team analysed and resolved challenging dementia care cases. Participant observations, participant journals, open-ended surveys, and follow-up semi-structured interviews were analysed. RESULTS: The thematic framework included five steps: unite around a shared challenge, tap the collective adaptive repertoire, collaborate on case-specific plans, implement with teamwork, and return for ongoing problem solving and integration. The program enhanced appreciation for teammates' knowledge, skills, and experiences, learning from each other, and integration of team-centered OA process. CONCLUSION/SIGNIFICANCE: The OA-based program appears to have facilitated adaptation that was complex, social, and generalisable. OA theory is enriched with a social view of occupational adaptation opening new opportunities for therapists and researchers to understand and facilitate adaptation among teams.

Adapting the Connect-Home transitional care intervention for the unique needs of people with dementia and their caregivers: A feasibility study.

AIMS: After leaving skilled nursing facilities (SNF), 20% of people with dementia (PWD) are re-hospitalized within 30 days. We assessed fidelity, acceptability, preliminary outcomes, and mechanisms of the Connect-Home ADRD transitional care intervention. DESIGN: A feasibility study of Connect-Home ADRD. METHODS: The Connect-Home intervention was adapted for dementia-specific needs. PWD and caregiver dyads in 2 SNFs received transitional care. Data sources included interviews with PWD and caregivers and a review of health records. RESULTS: 19 of 34 eligible dyads (56%) were enrolled. The intervention was feasible (components delivered for >84% of dyads) and acceptable (dyads rated it very helpful and not difficult to use). Connect-Home ADRD adaptations included in-home support to manage symptoms of dementia and unplanned events, such as transition to hospice. IMPACT: Connect-Home ADRD is feasible, acceptable, and merits future research as an intervention to reduce rapid return to acute care following SNF stays.

Quantification of cytosol and membrane proteins in rumen epithelium of sheep with low or high CH4 emission phenotype.

BACKGROUND: Ruminant livestock are a major contributor to Australian agricultural sector carbon emissions. Variation in methane (CH4) produced from enteric microbial fermentation of feed in the reticulo-rumen of sheep differs with different digestive functions. METHOD: We isolated rumen epithelium enzymatically to extract membrane and cytosol proteins from sheep with high (H) and low (L) CH4 emission. Protein abundance was quantified using SWATH-mass spectrometry. RESULTS: The research found differences related to the metabolism of glucose, lactate and processes of cell defence against microbes in sheep from each phenotype. Enzymes in the methylglyoxal pathway, a side path of glycolysis, resulting in D-lactate production, differed in abundance. In the H CH4 rumen epithelium the enzyme hydroxyacylglutathione hydrolase (HAGH) was 2.56 fold higher in abundance, whereas in the L CH4 epithelium lactate dehydrogenase D (LDHD) was 1.93 fold higher. Malic enzyme 1 which converts D-lactate to pyruvate via the tricarboxylic cycle was 1.57 fold higher in the L CH4 phenotype. Other proteins that are known to regulate cell defence against microbes had differential abundance in the epithelium of each phenotype. CONCLUSION: Differences in the abundance of enzymes involved in the metabolism of glucose were associated with H and L CH4 phenotype sheep. Potentially this represents an opportunity to use protein markers in the rumen epithelium to select low CH4 emitting sheep.

Targeting Epilepsy Through the Foremen Ovale: How Many Helical Needles are Needed?

Laser ablation of the hippocampus offers medically refractory epilepsy patients an alternative to invasive surgeries. Emerging commercial solutions deliver the ablator through a burr hole in the back of the head. We recently introduced a new access path through the foremen ovale, using a helical needle, which minimizes the amount of healthy brain tissue the needle must pass through on its way to the hippocampus, and also enables the needle to follow the medial axis of the hippocampus more closely. In this paper, we investigate whether helical needles should be designed and fabricated on a patient-specific basis as we had previously proposed, or whether a small collection of pre-defined needle shapes can apply across many patients. We propose a new optimization strategy to determine this needle set using patient data, and investigate the accuracy with which these needles can reach the the medial axis of the hippocampus. We find that three basic tube shapes (mirrored as necessary for left vs. right hippocampi) are all that is required, across 20 patient datasets (obtained from 10 patient CT scans), to reduce worst-case maximum error below 2 mm.

Outcomes of Team-Centered, Occupational Adaptation-Based Versus Traditional Dementia Workforce Training.

Background. Dementia workforce training aligned with Occupational Adaptation (OA) theory may facilitate teams resolving challenges in the care environment more than traditional skills-based (SB) training, although comparisons are needed. Purpose. This pilot study compared effectiveness of an OA and SB program on relative mastery and team development for dementia care teams at a continuing care retirement community. Method. In a quasi-experimental study, employees underwent nine sessions in an OA or SB program. Relative Mastery Measurement Scale and Team Development Measure results were collected pre-, mid-, post-intervention. A 3 × 2 ANOVA determined differences in group score changes across time. Findings. Data from 28 employees (14/group) showed group-by-time interaction reached statistical significance for both relative mastery (F = 3.17, df = 2, p = .05) and team development (F = 8.38, df = 2, p = .001). Implications. OA-based training may improve dementia care teams' collaborative mastery over real-world challenges. While preliminary findings inform program developers, further research must explore clinical effectiveness.

Comparing Occupational Adaptation-Based and Traditional Training Programs for Dementia Care Teams: An Embedded Mixed-Methods Study.

BACKGROUND AND OBJECTIVES: With a growing demand for a dementia-capable workforce, attention shifts from disseminating knowledge of care strategies to facilitating teams translating knowledge into practice. Occupational Adaptation (OA) is a theoretical framework used to facilitate people resolving real-world challenges through active problem-solving, using relative mastery as its measure. This pilot study evaluated if and how OA-based training improves dementia care teams' relative mastery and team development more than a skills-based (SB) program. RESEARCH DESIGN AND METHODS: We report results of an embedded mixed-methods study with 28 employees of a continuing care retirement community (2 groups randomly assigned to 9-week programs). Data collection entailed 2 surveys conducted pre-, mid-, and postintervention; observations; journals; and follow-up interviews. We extended beyond quantitative and qualitative analyses with cross-cutting analyses exploring exemplar and exceptional cases. RESULTS: The OA group reported significantly greater improvements in relative mastery and team development (p < .05). Qualitative data supported the statistical findings and illuminated processes that led OA to outperform SB. OA participants, those who analyzed real cases and alternated collaborative planning with cooperative action, were more likely to indicate pre-post differences in relative mastery and team development. DISCUSSION AND IMPLICATIONS: We identified features of the OA program that diverse participants deemed effective; features that suggest how OA could underpin clinically relevant learning for workers. Further research is required to develop evidence of clinical effectiveness; however, our findings have relevance for agencies wishing to promote knowledge translation and collaborative problem-solving in dementia workforce training.

Knee thrust prevalence and normative hip-knee-ankle angle deviation values among healthy individuals across the lifespan.

OBJECTIVE: To report the prevalence of varus thrust and normative values for hip-knee-ankle (HKA) angle deviation across the lifespan, and to explore associations between HKA angle deviation and selected clinical factors. DESIGN: This was a cross-sectional observational study of 572 participants from the 1000 Norms Project, aged 3-101 years and who self-reported as being healthy. Video recordings (2D) of frontal plane gait were reviewed by physiotherapists for presence of knee thrust and quantification of HKA angle deviation (the difference between HKA angle at initial contact and mid-stance). Age and sex-stratified normative HKA angle deviation values were presented as means and 95% confidence intervals (CIs). Correlations were calculated between HKA angle and clinical measures (age, sex, body mass index (BMI), alignment, knee and hip strength, Knee Injury and Osteoarthritis Outcomes Scores (KOOS), foot posture index, temporo-spatial gait, and hypermobility). RESULTS: Overall, 31% of the cohort had varus thrust, most prevalent among adults older than 60 years (42%) and children aged 3-9 (41%). Varus thrust was common in adolescents (25%) and adults aged 20-59 (23%). Mean HKA angle deviation for the entire cohort was 1.2° (95%CI: 1.07, 1.36) towards varus, and 2.1° (95%CI: 1.84, 2.36) among people with clinical varus thrust. Weak associations were identified between HKA angle deviation and BMI, stride width, and KOOS-Sports among adolescents, and in adults weakly associated with height. CONCLUSIONS: Prevalence of varus thrust is common across the lifespan. Normative values established here can be readily used by clinicians and researchers in monitoring this gait deviation.

Self-reported knee pain and disability among healthy individuals: reference data and factors associated with the Knee injury and Osteoarthritis Outcome Score (KOOS) and KOOS-Child.

OBJECTIVE: To develop normative reference data for the Knee injury and Osteoarthritis Outcome Score (KOOS) and KOOS-Child, as well as investigate socio-demographic, psychological and physical factors associated with knee pain and disability among healthy adults. METHOD: The KOOS or KOOS-Child (each containing five subscales) was administered to participants aged 8-101 years within the 1000 Norms Project, an observational study of 1000 self-reported healthy individuals. Self-efficacy, physical activity, body mass index (BMI), lower limb alignment, knee frontal plane projection angle (FPPA), knee range of motion (ROM), knee and hip strength, six-minute walk, 30-second chair stand and timed up and down stairs tests were collected. KOOS data were dichotomised using established cut-off scores and logistic regression analyses were conducted for each subscale. RESULTS: Socio-demographic characteristics were similar to the Australian population. Normative reference data were generated for children (8-17 years) and adults (18-101 years). Female adults were up to twice as likely to report knee pain, symptoms and sport/recreation (Sport/Rec) limitations compared to males (P < .05). Older age, lower self-efficacy, greater BMI, varus lower limb alignment, lower knee flexion ROM and lower hip external rotation (ER) strength were independently associated with knee pain and disability among adults. CONCLUSIONS: Age- and gender-stratified reference data for the KOOS and KOOS-Child have been developed to guide interpretation of results in practice and research for individuals with knee disorders. Psychological and physical factors are linked with self-reported knee pain/disability among adults, and longitudinal studies to investigate causation are required.

Examining the Efficacy of a Family Peer Advocate Model for Black and Hispanic Caregivers of Children with Autism Spectrum Disorder.

Autism spectrum disorder (ASD) affects individuals across all racial and ethnic groups, yet rates of diagnosis are disproportionately higher for Black and Hispanic children. Caregivers of children with ASD experience significant stressors, which have been associated with parental strain, inadequate utilization of mental health services and lower quality of life. The family peer advocate (FPA) model has been utilized across service delivery systems to provide family-to-family support, facilitate engagement, and increase access to care. This study used a randomized controlled design to examine the efficacy of FPAs in a racially and ethnically diverse sample. Results demonstrate significantly increased knowledge of ASD and reduced levels of stress for caregivers who received the FPA intervention as compared to treatment as usual.

Changes in Structural Connectivity Following a Cognitive Intervention in Children With Traumatic Brain Injury.

OBJECTIVE: Structural connectivity analysis based on graph theory and diffusion tensor imaging tractography is a novel method that quantifies the topological characteristics in the brain network. This study aimed to examine structural connectivity changes following the Attention Intervention and Management (AIM) program designed to improve attention and executive function (EF) in children with traumatic brain injury (TBI). METHODS: Seventeen children with complicated mild to severe TBI (13.66 ± 2.68 years; >12 months postinjury) completed magnetic resonance imaging (MRI) and neurobehavioral measures at time 1, 10 of whom completed AIM and assessment at time 2. Eleven matched healthy comparison (HC) children (13.37 ± 2.08 years) completed MRI and neurobehavioral assessment at both time points, but did not complete AIM. Network characteristics were analyzed to quantify the structural connectivity before and after the intervention. RESULTS: Mixed model analyses showed that small-worldness was significantly higher in the TBI group than the HC group at time 1, and both small-worldness and normalized clustering coefficient decreased significantly at time 2 in the TBI group whereas the HC group remained relatively unchanged. Reductions in mean local efficiency were significantly correlated with improvements in verbal inhibition and both parent- and child-reported EF. Increased normalized characteristic path length was significantly correlated with improved sustained attention. CONCLUSION: The results provide preliminary evidence suggesting that graph theoretical analysis may be a sensitive tool in pediatric TBI for detecting ( a) abnormalities of structural connectivity in brain network and ( b) structural neuroplasticity associated with neurobehavioral improvement following a short-term intervention for attention and EF.

Evidence-Based Practice for the Use of Internal Strategies as a Memory Compensation Technique After Brain Injury: A Systematic Review.

OBJECTIVE: To complete a systematic review of internal memory strategy use with people who have brain injury and provide practitioners with information that will impact their clinical work. METHODS: A systematic literature search to identify published intervention studies that evaluated an internal memory strategy or technique to improve memory function of individuals with brain injury. Relevant data from reviewed articles were coded using 4 clinical questions targeting participants, interventions, research methods, and outcomes. RESULTS: A comprehensive search identified 130 study citations and abstracts. Forty-six met inclusion/exclusion criteria and were systematically reviewed. Visual imagery was most frequently studied, in isolation or in combination with other internal strategies. Despite significant variability in research methods and outcomes across studies, the evidence provides impetus for use of internal memory strategies with individuals following brain injury. CONCLUSIONS: Individuals with traumatic brain injury may benefit from internal memory strategy use, and clinicians should consider internal memory strategy instruction as part of intervention plans. Further research needs to better delineate influences on intervention candidacy and outcomes.

Nonuniversality and Finite Dissipation in Decaying Magnetohydrodynamic Turbulence.

A model equation for the Reynolds number dependence of the dimensionless dissipation rate in freely decaying homogeneous magnetohydrodynamic turbulence in the absence of a mean magnetic field is derived from the real-space energy balance equation, leading to Cϵ=Cϵ,∞+C/R-+O(1/R-(2)), where R- is a generalized Reynolds number. The constant Cϵ,∞ describes the total energy transfer flux. This flux depends on magnetic and cross helicities, because these affect the nonlinear transfer of energy, suggesting that the value of Cϵ,∞ is not universal. Direct numerical simulations were conducted on up to 2048(3) grid points, showing good agreement between data and the model. The model suggests that the magnitude of cosmological-scale magnetic fields is controlled by the values of the vector field correlations. The ideas introduced here can be used to derive similar model equations for other turbulent systems.

RAD21 cohesin overexpression is a prognostic and predictive marker exacerbating poor prognosis in KRAS mutant colorectal carcinomas.

BACKGROUND: RAD21 is a component of the cohesion complex and is integral to chromosome segregation and error-free DNA repair. RAD21 is functionally important in tumour progression but its role in colorectal carcinoma (CRC) is unclear. We therefore assessed its clinicopathological and prognostic significance in CRC, as well as its effect on chemosensitivity. METHODS: A retrospective observation study examined RAD21 expression in 652 CRCs using a tissue microarray approach. Correlation with clinicopathological factors including gender, tumour grade, mucinous subtype, TNM stage, disease-specific survival (DSS), BRAF and KRAS mutation status, tumour p53 immunostaining, tumour microsatellite instability and tumour CpG island methylator phenotype was performed. Colorectal cancer cell clones with stable RAD21 knockdown were generated and tested for cellular sensitivity to conventional chemotherapeutic drugs. RESULTS: RAD21 expression was significantly correlated with male gender (56.7% vs 43.3%, P=0.02), well-differentiated histology (14.4% vs 4.0%, P=0.0001), higher T-stage (36.1% vs 27.0%, P=0.01), presence of metastasis (18.8% vs 12.6%, P=0.03), and shorter DSS (hazard ratio (HR) 1.4, 95% CI 1.1 to 1.9, P=0.01) in both univariate and multivariate analysis. RAD21 expression was associated with shorter DSS in patients with KRAS mutant tumours (HR:2.6, 95% CI:1.4-4.3, P=0.001) and in patients receiving adjuvant chemoradiotherapy (HR:1.9, 95% CI:1.2-3.0, P=0.008). Colorectal cancer cells with RAD21 knockdown exhibited enhanced sensitivity to 5-fluorouracil, either alone or in combination with oxaliplatin. CONCLUSIONS: RAD21 expression in CRC is associated with aggressive disease especially in KRAS mutant tumours and resistance to chemoradiotherapy. RAD21 may be an important novel therapeutic target.

HIV+ and HIV- youth living in group homes in South Africa need more psychosocial support.

Orphans and vulnerable youth who live in group homes are at risk of poor mental health and sexual and drug-using behaviors that increase the risk of HIV transmission. This study explores factors related to this risk among youth living in group homes ("children's homes") for orphans and vulnerable children in South Africa, a country afflicted by high levels of parental loss due to HIV. The study explores 1) knowledge and attitudes about HIV, 2) social support, 3) communication with group home caregivers, and 4) the relevance of an existing evidence-based HIV prevention and mental health promotion program to situations where sexual and drug risk behaviors can occur. In-depth qualitative individual interviews were conducted with 20 youth (age 10 to 16 years) residing in two children's homes in Durban, South Africa. Content analysis focused on critical themes related to coping and prevention of risk activities. Respondents exhibited inconsistent and incomplete knowledge of HIV transmission and prevention. They displayed positive attitudes toward people living with HIV, but reported experiencing or witnessing HIV-related stigma. Participants witnessed substance use and romantic/sexual relationships among their peers; few admitted to their own involvement. While relationships with childcare workers were central to their lives, youth reported communication barriers related to substance use, sex, HIV, and personal history (including parental loss, abuse, and other trauma). In conclusion, these qualitative data suggest that evidence-based HIV prevention programs that bring caregivers and youth together to improve communication, HIV knowledge, social support, youth self-esteem, and health care, reduce sexual and drug risk behaviors, and strengthen skills related to negotiating situations of sexual and substance use possibility could benefit youth and childcare workers in children's homes.

TRPA1 controls inflammation and pruritogen responses in allergic contact dermatitis.

Allergic contact dermatitis is a common skin disease associated with inflammation and persistent pruritus. Transient receptor potential (TRP) ion channels in skin-innervating sensory neurons mediate acute inflammatory and pruritic responses following exogenous stimulation and may contribute to allergic responses. Genetic ablation or pharmacological inhibition of TRPA1, but not TRPV1, inhibited skin edema, keratinocyte hyperplasia, nerve growth, leukocyte infiltration, and antihistamine-resistant scratching behavior in mice exposed to the haptens, oxazolone and urushiol, the contact allergen of poison ivy. Hapten-challenged skin of TRPA1-deficient mice contained diminished levels of inflammatory cytokines, nerve growth factor, and endogenous pruritogens, such as substance P (SP) and serotonin. TRPA1-deficient sensory neurons were defective in SP signaling, and SP-induced scratching behavior was abolished in Trpa1(-/-) mice. SP receptor antagonists, such as aprepitant inhibited both hapten-induced cutaneous inflammation and scratching behavior. These findings support a central role for TRPA1 and SP in the integration of immune and neuronal mechanisms leading to chronic inflammatory responses and pruritus associated with contact dermatitis.

Patterns of scald injuries in children--has anything changed?

The objective was to study presentation patterns of scald injuries in children and suggest potential countermeasures to reduce these injuries. We retrospectively studied scald injuries in children attending an urban paediatric emergency department between January 1st and December 31st 2008. Data was extracted from our emergency department database using search terms 'burn', 'scald', 'other burn'. Scalds were analysed for; age at presentation, sex, time of presentation, causal agent, scald outcome and treatment required. Burns accounted for 280 (0.66%) of total attendees, 161 (57%) were scalds. 127 (79%) were under 5 years old (mean age 42 months). 104 (65%) were caused by hot beverages, 25 (16%) hot water and 16 (10%) hot food stuffs. 97 (60%) presented within 1 hour of injury. 40 (25%) received first aid. The most affected areas were upper limbs 79 (35%) and upper trunk 74 (33%). Overall 45 (28%) were discharged home requiring no further treatment, 9 (6%) were admitted to hospital and 101 (63%) attended dressing clinic or plastic surgery OPD. Our results are consistent with other studies and illustrate that the incidence and pattern of scald injuries have not changed over the past decade. Scalds will continue to be a significant cause of unintentional injury and morbidity among young children unless preventative strategies are devised and employed.