Cell division angle predicts the level of tissue mechanics that tune the amount of cerebellar folding.

Modeling has led to proposals that the amount of neural tissue folding is set by the level of differential expansion between tissue layers and that the wavelength is set by the thickness of the outer layer. Here, we used inbred mouse strains with distinct amounts of cerebellar folding to investigate these predictions. We identified a distinct critical period during which the folding amount diverges between the two strains. In this period, regional changes in the level of differential expansion between the external granule layer (EGL) and underlying core correlate with the folding amount in each strain. Additionally, the thickness of the EGL varies regionally during the critical period alongside corresponding changes in wavelength. The number of SHH-expressing Purkinje cells predicts the folding amount, but the proliferation rate in the EGL is the same between the strains. However, regional changes in the cell division angle within the EGL predicts both the tangential expansion and the thickness of the EGL. Cell division angle is likely a tunable mechanism whereby both the level of differential expansion along the perimeter and the thickness of the EGL are regionally tuned to set the amount and wavelength of folding.

Centering Health Equity Through the Social Determinants of Health, Interprofessional Education, and Sustainable Partnerships With Historically Black Colleges and Universities: Envisioning Upstream and Downstream Impacts.

The social determinants of health (SDOH) framework identifies barriers to health care, education, financial stability, and other conditions that exist across socially determined parameters, often to the detriment of Communities of Color. Postsecondary healthcare students must be aware of these disparities. In order to address upstream and downstream healthcare equity, the SDOH framework must be leveraged as a cross-disciplinary curricular innovation to support interprofessional education. Historically Black Colleges and Universities have unrealized potential to develop extraordinary healthcare leaders; partnerships integrating SDOH can be a powerful force to advance health equity in the United States.

Cell division angle regulates the tissue mechanics and tunes the amount of cerebellar folding.

Modeling has proposed that the amount of neural tissue folding is set by the level of differential-expansion between tissue layers and that the wavelength is set by the thickness of the outer layer. Here we used inbred mouse strains with distinct amounts of cerebellar folding to investigate these predictions. We identified a critical period where the folding amount diverges between the strains. In this period, regional changes in the level of differential-expansion between the external granule layer (EGL) and underlying core correlate with the folding amount in each strain. Additionally, the thickness of the EGL is regionally adjusted during the critical period alongside corresponding changes in wavelength. While the number of SHH-expressing Purkinje cells predicts the folding amount, the proliferation rate in the EGL is the same between the strains. However, regional changes in the cell division angle within the EGL predicts both the tangential-expansion and thickness of the EGL. Cell division angle is likely a tunable mechanism whereby both the level of differential-expansion and thickness of the EGL are regionally tuned to set the amount and wavelength of folding.

Planning a digital intervention for adolescents with asthma (BREATHE4T): A theory-, evidence- and Person-Based Approach to identify key behavioural issues.

OBJECTIVES: To describe a transparent approach to planning a digital intervention for adolescents to self-manage their asthma using breathing retraining (BRT), based on an existing, effective adult intervention (BREATHE). METHODS: A theory-, evidence-, and Person-Based Approach was used to maximise the effectiveness and persuasiveness of the intervention. A scoping review and semistructured interviews with target intervention users (N = 18, adolescents aged 12-17 years with asthma and parents) were carried out to explore user perspectives, barriers, and facilitators towards the intended behaviours and potential intervention features. The combined evidence was used alongside and to inform theory-based activities and enabled iterative planning of the intervention. RESULTS: The scoping review identified themes relating to user-specific self-management issues, content, education, training needs, and features for a digital intervention. Interviews elicited potential barriers to intended behaviours such as the anticipated embarrassment of using BRT and concerns around remaining calm. Facilitators included BRT delivered by adolescents who share experiences of asthma and information for performing exercises discreetly. Relevant theoretical frameworks ensured that appropriate psychological constructs were targeted. A behavioural analysis identified six intervention functions and thirty behaviour change techniques. Logic modelling mapped the programme theory and mechanisms, which aims to improve adolescent asthma-related quality of life. CONCLUSIONS: This study gives a transparent insight into the approach followed to plan a self-guided BRT intervention for adolescents and has led to identification of key behavioural issues, enabling relevant intervention content to be chosen. Insight has been given into adolescent perceptions of BRT, which facilitated development of the prototype intervention.

Evaluation of glycemic control using NPH insulin sliding scale versus insulin aspart sliding scale in continuously tube-fed patients.

BACKGROUND: Hyperglycemia is often a problem in patients who receive continuous enteral nutrition. The purpose of this study was to determine if the use of sliding-scale neutral protamine Hagedorn (NPH) insulin was more effective than sliding-scale insulin aspart in controlling blood glucose in continuously tube-fed patients. METHODS: A retrospective, records-based review comparing sliding-scale NPH insulin given every 4 or 6 hours with sliding-scale insulin aspart was performed in patients admitted to 2 community hospitals between April 1, 2006, and September 30, 2007. RESULTS: Mean blood glucose was found to be lower in patients receiving NPH every 4 hours and NPH every 6 hours than in patients receiving insulin aspart (P < .001). No statistically significant differences in mean blood glucose values (P = .41) were observed between patients receiving the NPH regimen given every 4 or 6 hours. More patients in the NPH groups had blood glucose values in the target and acceptable ranges than those in the insulin aspart group (P < .001), but no statistical significance was observed between the groups receiving NPH every 4 hours and NPH every 6 hours (P = .41). CONCLUSIONS: In this study, sliding-scale NPH insulin was demonstrated to be a safe and effective management strategy for blood glucose control in continuously tube-fed patients; NPH insulin resulted in better blood glucose control compared with insulin aspart.