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1.
J Autism Dev Disord ; 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38717636

RESUMO

BACKGROUND: The job interview can be challenging for autistic adolescents considering the required social communication skills. Further, having decreased awareness of personal strengths may make it difficult to advocate for oneself to a future employer. The purpose of the current pilot randomized controlled trial (RCT) is to examine the preliminary efficacy and feasibility of a combined interventional approach using: the Virtual Interview Tool for Autistic Transition-Age Youth (VIT-TAY) and Kessler Foundation Strength Identification and Expression (KF-STRIDE). METHOD: Twenty autistic transition-age youth (TAY) were randomly assigned to two groups: an intervention group (n = 10) that received 9 h of VIT-TAY (interviewing practice with a virtual human), and three lessons of KF-STRIDE (positive psychology intervention to learn and discuss one's personal character strengths) and a services-as-usual (SAU) group (n = 10). The primary outcome was measured using a video-recorded mock job interview performed at pre- and post-test, which was rated by blinded assessors. Secondary outcomes included self-reports of job interview skill, interview anxiety, work readiness and recent job search behavior. RESULTS: Paired samples t-tests revealed significant differences between pre- and post-test in the intervention group (but not the control group) on the mock interview total score (p = 0.02, d = 0.76) and self-reported job interview skills total score (p = 0.02, d = 0.75). The intervention group (but not the control group) had improvements in work-readiness (p = 0.06, d = 0.53) and job search behavior (p = 0.07, d = 0.52) that were characterized by medium effect sizes. CONCLUSIONS: This pilot study suggests that combining VIT-TAY with KF-STRIDE leads to improvements in performance-based and self-reported job interview skills.

2.
Methods Mol Biol ; 2797: 195-209, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38570461

RESUMO

Knowledge of how effectors interact with RAS GTPases is key to understanding how these switch-like proteins function in cells. Effectors bind specifically to GTP-loaded RAS using RAS association (RA) or RAS binding domains (RBDs) that show wide-ranging affinities and thermodynamic characteristics. Both normal development and RAS-induced tumorigenesis depend on multiple distinct effector proteins that are frequently co-expressed and co-localized, suggesting an antagonistic nature to signaling whereby multiple proteins compete for a limited pool of activated GTPase. NMR spectroscopy offers a powerful approach to multiplex effectors and/or regulatory enzymes and quantifies their interaction with RAS, expanding our biophysical and systems-level understanding of RAS signaling in a more integrated and physiologically relevant setting. Here we describe a method to directly quantitate GTPase binding to competing effectors, using wild-type KRAS complex with ARAF and PLCε1 as a model. Unlabeled RBD/RA domains are added simultaneously to isotopically labeled RAS, and peak intensities at chemical shifts characteristic of individually bound domains provide quantitation. Similar competition-based assays can be run with small molecule interactors, GEF/GAP domains, or regulatory enzymes that drive posttranslational modifications. Such efforts bring in vitro interaction experiments in line with more complex cellular environments.


Assuntos
Transdução de Sinais , Proteínas ras , Proteínas ras/metabolismo , Proteínas/metabolismo , Espectroscopia de Ressonância Magnética , Ligação Proteica
3.
Artigo em Inglês | MEDLINE | ID: mdl-38626434

RESUMO

The American Academy of Orthopaedic Surgeons has developed an Appropriate Use Criteria (AUC) for Treatment of Shoulder Osteoarthritis with Intact Rotator Cuff and Severe Glenoid Retroversion. Evidence-based information, in conjunction with the clinical expertise of physicians, was used to develop the criteria to determine the appropriateness of various treatments of shoulder osteoarthritis with intact rotator cuff and severe glenoid retroversion. The AUC for Treatment of Shoulder Osteoarthritis with Intact Rotator Cuff and Severe Glenoid Retroversion were derived by identifying scenarios evident during the clinical decision-making process on this topic. These scenarios relied on definitions and general assumptions, mutually agreed upon by the writing panel during scenario development. These definitions and assumptions were necessary to provide consistency in the interpretation of the clinical scenarios among experts rating the scenarios and readers using the final criteria. Writing panel members of this AUC developed patient scenarios using these guiding principles: comprehensive (covers a wide range of patients), mutually exclusive (no overlap between patient scenarios/indications), homogeneous (final ratings should result in equal application in each of the patient scenarios), and manageable (number of total rating items [ie, number of patient scenarios × number of treatments] should be practical for the rating panel). The target number of total rating items was <1,500. This means that not all patient indications and treatments can be assessed using AUC. A total of 240 patient scenarios and five treatments were developed by the writing panel, a group of clinicians who are specialists in this AUC topic. Next, a separate, multidisciplinary, rating panel (made up of specialists and non-specialists) rated the appropriateness of treatment of each patient scenario using a nine-point scale to designate a treatment as "appropriate" (median rating, 7 to 9), "may be appropriate" (median rating, 4 to 6), or "rarely appropriate" (median rating, 1 to 3).

4.
J Cell Sci ; 137(9)2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38606629

RESUMO

The ADP-ribosylation factors (ARFs) and ARF-like (ARL) GTPases serve as essential molecular switches governing a wide array of cellular processes. In this study, we used proximity-dependent biotin identification (BioID) to comprehensively map the interactome of 28 out of 29 ARF and ARL proteins in two cellular models. Through this approach, we identified ∼3000 high-confidence proximal interactors, enabling us to assign subcellular localizations to the family members. Notably, we uncovered previously undefined localizations for ARL4D and ARL10. Clustering analyses further exposed the distinctiveness of the interactors identified with these two GTPases. We also reveal that the expression of the understudied member ARL14 is confined to the stomach and intestines. We identified phospholipase D1 (PLD1) and the ESCPE-1 complex, more precisely, SNX1, as proximity interactors. Functional assays demonstrated that ARL14 can activate PLD1 in cellulo and is involved in cargo trafficking via the ESCPE-1 complex. Overall, the BioID data generated in this study provide a valuable resource for dissecting the complexities of ARF and ARL spatial organization and signaling.


Assuntos
Fatores de Ribosilação do ADP , Fosfolipase D , Transdução de Sinais , Fatores de Ribosilação do ADP/metabolismo , Fatores de Ribosilação do ADP/genética , Humanos , Fosfolipase D/metabolismo , Fosfolipase D/genética , Células HEK293 , Animais , Nexinas de Classificação/metabolismo , Nexinas de Classificação/genética , Mapeamento de Interação de Proteínas
5.
Biochem Soc Trans ; 52(1): 269-278, 2024 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-38372426

RESUMO

Recent evidence highlights the importance of trace metal micronutrients such as zinc (Zn) in coronary and vascular diseases. Zn2+ plays a signalling role in modulating endothelial nitric oxide synthase and protects the endothelium against oxidative stress by up-regulation of glutathione synthesis. Excessive accumulation of Zn2+ in endothelial cells leads to apoptotic cell death resulting from dysregulation of glutathione and mitochondrial ATP synthesis, whereas zinc deficiency induces an inflammatory phenotype, associated with increased monocyte adhesion. Nuclear factor-E2-related factor 2 (NRF2) is a transcription factor known to target hundreds of different genes. Activation of NRF2 affects redox metabolism, autophagy, cell proliferation, remodelling of the extracellular matrix and wound healing. As a redox-inert metal ion, Zn has emerged as a biomarker in diagnosis and as a therapeutic approach for oxidative-related diseases due to its close link to NRF2 signalling. In non-vascular cell types, Zn has been shown to modify conformations of the NRF2 negative regulators Kelch-like ECH-associated Protein 1 (KEAP1) and glycogen synthase kinase 3ß (GSK3ß) and to promote degradation of BACH1, a transcriptional suppressor of select NRF2 genes. Zn can affect phosphorylation signalling, including mitogen-activated protein kinases (MAPK), phosphoinositide 3-kinases and protein kinase C, which facilitate NRF2 phosphorylation and nuclear translocation. Notably, several NRF2-targeted proteins have been suggested to modify cellular Zn concentration via Zn exporters (ZnTs) and importers (ZIPs) and the Zn buffering protein metallothionein. This review summarises the cross-talk between reactive oxygen species, Zn and NRF2 in antioxidant responses of vascular cells against oxidative stress and hypoxia/reoxygenation.


Assuntos
Fator 2 Relacionado a NF-E2 , Zinco , Proteína 1 Associada a ECH Semelhante a Kelch/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Zinco/metabolismo , Células Endoteliais/metabolismo , Estresse Oxidativo , Oxirredução , Glutationa/metabolismo
6.
Artigo em Inglês | MEDLINE | ID: mdl-38182025

RESUMO

BACKGROUND: Particle-induced osteolysis resulting from polyethylene wear remains a source of implant failure in anatomic total shoulder designs. Modern polyethylene components are irradiated in an oxygen-free environment to induce cross-linking, but reducing the resulting free radicals with melting or heat annealing can compromise the component's mechanical properties. Vitamin E has been introduced as an adjuvant to thermal treatments. Anatomic shoulder arthroplasty models with a ceramic head component have demonstrated that vitamin E-enhanced polyethylene show improved wear compared with highly cross-linked polyethylene (HXLPE). This study aimed to assess the biomechanical wear properties and particle size characteristics of a novel vitamin E-enhanced highly cross-linked polyethylene (VEXPE) glenoid compared to a conventional ultrahigh-molecular-weight polyethylene (UHMWPE) glenoid against a cobalt chromium molybdenum (CoCrMo) head component. METHODS: Biomechanical wear testing was performed to compare the VEXPE glenoid to UHMWPE glenoid with regard to pristine polyethylene wear and abrasive endurance against a polished CoCrMo alloy humeral head in an anatomic shoulder wear-simulation model. Cumulative mass loss (milligrams) was recorded, and wear rate calculated (milligrams per megacycle [Mc]). Under pristine wear conditions, particle analysis was performed, and functional biologic activity (FBA) was calculated to estimate particle debris osteolytic potential. In addition, 95% confidence intervals for all testing conditions were calculated. RESULTS: The average pristine wear rate was statistically significantly lower for the VEXPE glenoid compared with the HXLPE glenoid (0.81 ± 0.64 mg/Mc vs. 7.00 ± 0.45 mg/Mc) (P < .05). Under abrasive wear conditions, the VEXPE glenoid had a statistically significant lower average wear rate compared with the UHMWPE glenoid comparator device (18.93 ± 5.80 mg/Mc vs. 40.47 ± 2.63 mg/Mc) (P < .05). The VEXPE glenoid demonstrated a statistically significant improvement in FBA compared with the HXLPE glenoid (0.21 ± 0.21 vs. 1.54 ± 0.49 (P < .05). CONCLUSIONS: A new anatomic glenoid component with VEXPE demonstrated significantly improved pristine and abrasive wear properties with lower osteolytic particle debris potential compared with a conventional UHMWPE glenoid component. Vitamin E-enhanced polyethylene shows early promise in shoulder arthroplasty components. Long-term clinical and radiographic investigation needs to be performed to verify if these biomechanical wear properties translate to diminished long-term wear, osteolysis, and loosening.

7.
bioRxiv ; 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-36909472

RESUMO

The ADP-ribosylation factors (ARFs) and ARF-like (ARLs) GTPases serve as essential molecular switches governing a wide array of cellular processes. In this study, we utilized proximity-dependent biotin identification (BioID) to comprehensively map the interactome of 28 out of 29 ARF and ARL proteins in two cellular models. Through this approach, we identified ~3000 high-confidence proximal interactors, enabling us to assign subcellular localizations to the family members. Notably, we uncovered previously undefined localizations for ARL4D and ARL10. Clustering analyses further exposed the distinctiveness of the interactors identified with these two GTPases. We also reveal that the expression of the understudied member ARL14 is confined to the stomach and intestines. We identified phospholipase D1 (PLD1) and the ESCPE-1 complex, more precisely SNX1, as proximity interactors. Functional assays demonstrated that ARL14 can activate PLD1 in cellulo and is involved in cargo trafficking via the ESCPE-1 complex. Overall, the BioID data generated in this study provide a valuable resource for dissecting the complexities of ARF and ARL spatial organization and signaling.

8.
J Allergy Clin Immunol ; 153(4): 1113-1124.e7, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38065233

RESUMO

BACKGROUND: Patients with deleterious variants in MYSM1 have an immune deficiency characterized by B-cell lymphopenia, hypogammaglobulinemia, and increased radiosensitivity. MYSM1 is a histone deubiquitinase with established activity in regulating gene expression. MYSM1 also localizes to sites of DNA injury but its function in cellular responses to DNA breaks has not been elucidated. OBJECTIVES: This study sought to determine the activity of MYSM1 in regulating DNA damage responses (DDRs) to DNA double-stranded breaks (DSBs) generated during immunoglobulin receptor gene (Ig) recombination and by ionizing radiation. METHODS: MYSM1-deficient pre- and non-B cells were used to determine the role of MYSM1 in DSB generation, DSB repair, and termination of DDRs. RESULTS: Genetic testing in a newborn with abnormal screen for severe combined immune deficiency, T-cell lymphopenia, and near absence of B cells identified a novel splice variant in MYSM1 that results in nearly absent protein expression. Radiosensitivity testing in patient's peripheral blood lymphocytes showed constitutive γH2AX, a marker of DNA damage, in B cells in the absence of irradiation, suggesting a role for MYSM1 in response to DSBs generated during Ig recombination. Suppression of MYSM1 in pre-B cells did not alter generation or repair of Ig DSBs. Rather, loss of MYSM1 resulted in persistent DNA damage foci and prolonged DDR signaling. Loss of MYSM1 also led to protracted DDRs in U2OS cells with irradiation induced DSBs. CONCLUSIONS: MYSM1 regulates termination of DNA damage responses but does not function in DNA break generation and repair.


Assuntos
Dano ao DNA , Reparo do DNA , Linfopenia , Humanos , Recém-Nascido , Quebras de DNA de Cadeia Dupla , Dano ao DNA/genética , Histonas/genética , Histonas/metabolismo , Linfopenia/genética , Transativadores/genética , Proteases Específicas de Ubiquitina/genética , Proteases Específicas de Ubiquitina/metabolismo
9.
Psychiatr Serv ; 75(3): 228-236, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-37644829

RESUMO

OBJECTIVE: Employment rates among individuals with serious mental illness may be improved by engagement in the individual placement and support (IPS) model of supported employment. Results from a recent randomized controlled trial (RCT) indicate that virtual reality job interview training (VR-JIT) improves employment rates among individuals with serious mental illness who have been actively engaged in IPS for at least 90 days. This study reports on an initial implementation evaluation of VR-JIT during the RCT in a community mental health agency. METHODS: A sequential, complementary mixed-methods design included use of qualitative data to improve understanding of quantitative findings. Thirteen IPS staff trained to lead VR-JIT implementation completed VR-JIT acceptability, appropriateness, and feasibility surveys. Participants randomly assigned to IPS with VR-JIT completed acceptability (N=42) and usability (N=28) surveys after implementation. The authors also conducted five focus groups with IPS staff (N=11) and VR-JIT recipients (N=13) and semistructured interviews with IPS staff (N=9) and VR-JIT recipients (N=4), followed by an integrated analysis process. RESULTS: Quantitative results suggest that IPS staff found VR-JIT to be highly acceptable, appropriate for integration with IPS, and feasible for delivery. VR-JIT was highly acceptable to recipients. Qualitative results add important context to the quantitative findings, including benefits of VR-JIT for IPS staff as well as adaptations for delivering technology-based interventions to individuals with serious mental illness. CONCLUSIONS: These qualitative and quantitative findings are consistent with each other and were influenced by VR-JIT's adaptability and perceived benefits. Tailoring VR-JIT instruction and delivery to individuals with serious mental illness may help optimize VR-JIT implementation within IPS.


Assuntos
Readaptação ao Emprego , Realidade Virtual , Humanos , Grupos Focais , Capacitação em Serviço , Ensaios Clínicos Controlados Aleatórios como Assunto , Tecnologia , Pesquisa Qualitativa
10.
Free Radic Biol Med ; 210: 158-171, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37989446

RESUMO

Coronary ischemia-reperfusion (IR) injury results from a blockage of blood supply to the heart followed by restoration of perfusion, leading to oxidative stress induced pathological processes. Nuclear factor erythroid 2-related factor 2 (NRF2), a master antioxidant transcription factor, plays a key role in regulating redox signaling. Over the past decades, the field of metallomics has provided novel insights into the mechanism of pro-oxidant and antioxidant pathological processes. Both redox-active (e.g. Fe and Cu) and redox-inert (e.g. Zn and Mg) metals play unique roles in establishing redox balance under IR injury. Notably, Zn protects against oxidative stress in coronary IR injury by serving as a cofactor of antioxidant enzymes such as superoxide dismutase [Cu-Zn] (SOD1) and proteins such as metallothionein (MT) and KEAP1/NRF2 mediated antioxidant defenses. An increase in labile Zn2+ inhibits proteasomal degradation and ubiquitination of NRF2 by modifying KEAP1 and glycogen synthase kinase 3ß (GSK3ß) conformations. Fe and Cu catalyse the formation of reactive oxygen species via the Fenton reaction and also serve as cofactors of antioxidant enzymes and can activate NRF2 antioxidant signaling. We review the evidence that Zn and redox-active metals Fe and Cu affect redox signaling in coronary cells during IR and the mechanisms by which oxidative stress influences cellular metal content. In view of the unique double-edged characteristics of metals, we aim to bridge the role of metals and NRF2 regulated redox signaling to antioxidant defenses in IR injury, with a long-term aim of informing the design and application of novel therapeutics.


Assuntos
Metais , Traumatismo por Reperfusão Miocárdica , Estresse Oxidativo , Transdução de Sinais , Humanos , Zinco , Animais , Proteína 1 Associada a ECH Semelhante a Kelch/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Metais/metabolismo
11.
J Shoulder Elbow Surg ; 33(1): 6-13, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37579940

RESUMO

BACKGROUND: Cutibacterium acnes remains the most commonly detected organism in shoulder arthroplasty. C acnes infection is thought to occur during shoulder arthroplasty through contamination of the surgical field with C acnes from the incised dermis. The purpose of this study was to examine whether using electrocautery for making skin incisions would decrease C acnes culture rates at the incised dermis compared to using scalpels during shoulder arthroplasty. METHODS: Patients undergoing primary shoulder arthroplasty were randomized into 2 groups, electrocautery vs. scalpel incision group. All patients received a standard preoperative antiseptic preparation including chlorhexidine gluconate showers, intravenous antibiotic administration, and topical application of hydrogen peroxide, povidone iodine, isopropyl alcohol, and DuraPrep. Cultures were obtained from the incised dermal edge immediately after skin incision and later from surgeon's gloves and forceps immediately prior to humeral component implantation. The primary outcome was positive C acnes culture rates compared between the groups. RESULTS: A total of 64 patients (32 in each group) were enrolled. There were 24 males in each group. Regarding dermis cultures, 10 patients (31%) in the scalpel group were positive with 8 of them positive for C acnes, whereas no patients in the electrocautery group were positive (P < .001). Regarding glove cultures, the electrocautery group had 8 patients positive C acnes, while the scalpel group had 8 (P = .777). Regarding forceps cultures, the electrocautery group had 4 patients positive for C acnes, and the scalpel group had 6 (P = .491). All positive cultures were exclusively from male patients. There were no wound complications or infection in the electrocautery group while the scalpel group had 1 acute postoperative infection. CONCLUSIONS: Making skin incisions using electrocautery resulted in 0 C acnes culture at the incised dermis, suggesting its potential effect against C acnes. However, despite this initial antibacterial effect, C acnes still appeared on surgeon's gloves and forceps during surgery of male patients. All positive cultures were from male patients, suggesting that the source of C acnes was specifically related to the male body. While the study hypothesis was supported by the results, the present study also raises new questions and calls for further research.


Assuntos
Anti-Infecciosos Locais , Artroplastia do Ombro , Articulação do Ombro , Humanos , Masculino , Artroplastia do Ombro/efeitos adversos , Articulação do Ombro/cirurgia , Articulação do Ombro/microbiologia , Pele/microbiologia , Estudos Prospectivos , Propionibacterium acnes , Antibacterianos/uso terapêutico
12.
Front Psychiatry ; 14: 1235056, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38025460

RESUMO

Background: Employment is a major contributor to quality of life. However, autistic people are often unemployed and underemployed. One potential barrier to employment is the job interview. However, the availability of psychometrically-evaluated assessments of job interviewing skills is limited for autism services providers and researchers. Objective: We analyzed the psychometric properties of the Mock Interview Rating Scale that was adapted for research with autistic transition-age youth (A-MIRS; a comprehensive assessment of video-recorded job interview role-play scenarios using anchor-based ratings for 14 scripted job scenarios). Methods: Eighty-five transition-age youth with autism completed one of two randomized controlled trials to test the effectiveness of two interventions focused on job interview skills. All participants completed a single job interview role-play at pre-test that was scored by raters using the A-MIRS. We analyzed the structure of the A-MIRS using classical test theory, which involved conducting both exploratory and confirmatory factor analyzes, Rasch model analysis and calibration techniques. We then assessed internal consistency, inter-rater reliability, and test-retest reliability. Pearson correlations were used to assess the A-MIRS' construct, convergent, divergent, criterion, and predictive validities by comparing it to demographic, clinical, cognitive, work history measures, and employment outcomes. Results: Results revealed an 11-item unidimensional construct with strong internal consistency, inter-rater reliability, and test-retest reliability. Construct [pragmatic social skills (r = 0.61, p < 0.001), self-reported interview skills (r = 0.34, p = 0.001)], divergent [e.g., age (r = -0.13, p = 0.26), race (r = 0.02, p = 0.87)], and predictive validities [competitive employment (r = 0.31, p = 0.03)] received initial support via study correlations, while convergent [e.g., intrinsic motivation (r = 0.32, p = 0.007), job interview anxiety (r = -0.19, p = 0.08)] and criterion [e.g., prior employment (r = 0.22, p = 0.046), current employment (r = 0.21, p = 0.054)] validities were limited. Conclusion: The psychometric properties of the 11-item A-MIRS ranged from strong-to-acceptable, indicating it may have utility as a reliable and valid method for assessing the job interview skills of autistic transition-age youth.

13.
Angew Chem Int Ed Engl ; 62(48): e202312797, 2023 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-37846756

RESUMO

Under acidic reaction conditions (TFA), deprotection of BocNR(OSO2 R) reagents triggers intermolecular aminative cyclizations of alkenes equipped with pendant nucleophiles. The processes are predicated on a sequence of stereospecific intermolecular aza-Prilezhaev aziridination followed by stereospecific SN 2-like opening by the pendant nucleophile. The method offers broad scope with respect to the nucleophile (N-, O- or C-based), alkene and cyclization mode, allowing the installation of two contiguous stereocenters under operationally simple conditions.

14.
Front Psychiatry ; 14: 1098334, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37779620

RESUMO

Introduction: Kessler Foundation Strength Identification and Expression (KF-STRIDE) is a strength-based job interview training tool developed for young adults on the autism spectrum. The intervention is based on a positive psychology framework to increase knowledge of character strengths, and how to relate them to a future employer. The current study sought to evaluate the acceptability, usability and feasibility of KF-STRIDE, as well as to guide adaptations to improve the tool's ability to meet the needs of those on the spectrum. Methods: Mixed methods (post-intervention surveys, and semi-structured interviews with key stakeholders) were used to inform the evaluation and consequent adaptations of KF-STRIDE. Results: The major findings of the study were that KF-STRIDE was found to be largely acceptable and usable. Importantly, however, our qualitative analysis revealed modifications that could help to better suit the needs of young adults on the spectrum, which included the incorporation of additional skills (i.e. etiquette, practicing hygiene) and more opportunities to practice job interviewing. Thus, we altered the implementation of the intervention to be web-based to improve accessibility. We incorporated the presence of an animated character to deliver the content, to eliminate the need for a highly trained interventionist. Discussion: KF-STRIDE was modified to increase access by incorporating feedback from the autism community. Future directions include assessing the efficacy of KF-STRIDE in young adults on the spectrum to identify whether employment outcomes are improved after using the tool.

15.
Global Health ; 19(1): 69, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37700357

RESUMO

BACKGROUND: Non-communicable diseases (NCDs) are the leading cause of mortality across the Caribbean and similar regions. Structural determinants include a marked increase in the dependency on food imports, and the proliferation of processed foods, including sugar-sweetened beverages (SSBs). We focused on Jamaica as a case study and the health challenge of SSBs, and situated contemporary actions, experiences and policies within their historical context to investigate underlying drivers of commercial determinants of health and attempts to counter them. We asked: how can a historical perspective of the drivers of high level SSB consumption in Jamaica contribute to an enhanced understanding of the context of public health policies aimed at reducing their intake? METHODS: An ethnographic approach with remote data collection included online semi-structured interviews and workshops with 22 local experts and practitioners of health, agriculture and nutrition in Jamaica and attending relevant regional public webinars on SSBs and NCD action in the Caribbean. Our analysis was situated within a review of historical studies of Caribbean food economies with focus on the twentieth century. Jamaican and UK-based researchers collected and ethnographically analysed the data, and discussed findings with the wider transdisciplinary team. RESULTS: We emphasise three key areas in which historical events have shaped contextual factors of SSB consumption. Trade privileged sugar as a cash crop over food production during Jamaica's long colonial history, and trade deregulation since the 1980s through structural adjustment opened markets to transnational companies. These changes increased Jamaican receptiveness to the mass advertisement and marketing of these companies, whilst long-standing power imbalances hampered taxation and regulation in contemporary public health actions. Civil society efforts were important for promoting structural changes to curb overconsumption of SSBs and decentring such entrenched power relations. CONCLUSION: The contemporary challenge of SSBs in Jamaica is a poignant case study of commercial determinants of health and the important context of global market-driven economies and the involvement of private sector interests in public health policies and governance. Historically contextualising these determinants is paramount to making sense of the sugar ecology in Jamaica today and can help elucidate entrenched power dynamics and their key actors.


Assuntos
Bebidas Adoçadas com Açúcar , Humanos , Região do Caribe , Jamaica , Pesquisa Qualitativa , Açúcares
16.
Psychiatr Rehabil J ; 46(4): 353-359, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37589694

RESUMO

OBJECTIVE: Individuals with serious mental illness (SMI) who re-enter the labor market after extended unemployment may benefit from exposure to job interview training. This study explored the processes and perceived benefits of preparing for interviews using Virtual Reality Job Interviewing Training (VR-JIT) among employment specialists (ESs) and clients within the individual placement and support (IPS) model of supported employment. METHOD: This study analyzed secondary qualitative data from a randomized controlled trial (RCT) of VR-JIT including qualitative focus groups comprised of IPS employment specialists (n = 11) and IPS clients (n = 13), semistructured interviews with IPS employment specialists (n = 3), and semistructured interviews with IPS clients (n = 3). Additionally, semistructured interviews with IPS employment specialists (n = 8) who naturalistically implemented VR-JIT at four community mental health agencies independent of the RCT. All focus group and interview data were analyzed using grounded theory methodology. RESULTS: Three main processes were viewed by employment specialists (and their clients) as beneficial for individuals with SMI receiving IPS with VR-JIT: (a) exposure to a simulated interview in a safe environment; (b) practicing and receiving job interviewing feedback; and (c) improved confidence and motivation in job seeking. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: VR-JIT improved IPS participants' confidence in job seeking through proposed mechanisms of exposure to a simulated job interview and repetition and practice of job interview skills. These critical elements indicate that VR-JIT has the potential to improve IPS client engagement particularly with those who have had prolonged periods of unemployment. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
Readaptação ao Emprego , Transtornos Mentais , Realidade Virtual , Humanos , Desemprego , Reabilitação Vocacional/métodos , Transtornos Mentais/psicologia
17.
J Biol Chem ; 299(9): 105123, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37536630

RESUMO

Distinct functions mediated by members of the monopolar spindle-one-binder (MOB) family of proteins remain elusive beyond the evolutionarily conserved and well-established roles of MOB1 (MOB1A/B) in regulating tissue homeostasis within the Hippo pathway. Since MOB proteins are adaptors, understanding how they engage in protein-protein interactions and help assemble complexes is essential to define the full scope of their biological functions. To address this, we undertook a proximity-dependent biotin identification approach to define the interactomes of all seven human MOB proteins in HeLa and human embryonic kidney 293 cell lines. We uncovered >200 interactions, of which at least 70% are unreported on BioGrid. The generated dataset reliably recalled the bona fide interactors of the well-studied MOBs. We further defined the common and differential interactome between different MOBs on a subfamily and an individual level. We discovered a unique association between MOB3C and 7 of 10 protein subunits of the RNase P complex, an endonuclease that catalyzes tRNA 5' maturation. As a proof of principle for the robustness of the generated dataset, we validated the specific interaction of MOB3C with catalytically active RNase P by using affinity purification-mass spectrometry and pre-tRNA cleavage assays of MOB3C pulldowns. In summary, our data provide novel insights into the biology of MOB proteins and reveal the first interactors of MOB3C, components of the RNase P complex, and hence an exciting nexus with RNA biology.


Assuntos
Via de Sinalização Hippo , Mapeamento de Interação de Proteínas , Proteínas Serina-Treonina Quinases , Ribonuclease P , Humanos , Células HeLa , Via de Sinalização Hippo/fisiologia , Ribonuclease P/metabolismo , Células HEK293 , Subunidades Proteicas/metabolismo
18.
Bioessays ; 45(9): e2300088, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37401638

RESUMO

RAS GTPases play essential roles in normal development and are direct drivers of human cancers. Three decades of study have failed to wholly characterize pathways stimulated by activated RAS, driven by engagement with 'effector' proteins that have RAS binding domains (RBDs). Bone fide effectors must bind directly to RAS GTPases in a nucleotide-dependent manner, and this interaction must impart a clear change in effector activity. Despite this, for most proteins currently deemed effectors there is little mechanistic understanding of how binding to the GTPase alters protein function. There has also been limited effort to comprehensively resolve the specificity of effector binding to the full array of RAS superfamily GTPase proteins. This review will summarize what is known about RAS-driven activation for an array of potential effector proteins, focusing on structural and mechanistic effects and highlighting how little is still known regarding this key paradigm of cellular signal transduction.


Assuntos
Transdução de Sinais , Proteínas ras , Humanos , Proteínas ras/metabolismo , Ligação Proteica , Proteínas/metabolismo , Nucleotídeos/metabolismo
19.
Contemp Clin Trials Commun ; 34: 101153, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37456506

RESUMO

Autistic transition-age youth experience high rates of unemployment and underemployment, in part due to the social challenges they may face when having conversations in the workplace. In an effort to help enhance conversational abilities in the workplace, our collaborative team partnered to develop WorkChat: A Virtual Workday. Specifically, our team of scientists, community partners, and diversity and inclusion experts participated in a community-engaged process to develop WorkChat using iterative feedback from autistic transition-age youth and their teachers. With initial development complete, this study reports on the protocol that our collaborative team developed, reviewed, and approved to conduct a randomized controlled trial (RCT) to evaluate the real-world effectiveness and initial implementation process outcomes of WorkChat when integrated into post-secondary pre-employment transition services (Pre-ETS). Our aims are to: 1) evaluate whether services-as-usual in combination with WorkChat, compared to services-as-usual with an attention control, enhances social cognition and work-based social ability (between pre- and post-test); reduces anxiety about work-based social encounters (between pre- and post-test), and increases sustained employment by 9-month follow-up; 2) evaluate whether social cognitive ability and work-based social ability mediate the effect of WorkChat on sustained employment; and 3) conduct a multilevel, mixed-method process evaluation of WorkChat implementation.

20.
Redox Biol ; 64: 102777, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37315344

RESUMO

Zinc (Zn) has antioxidant, anti-inflammatory and anti-proliferative actions, with Zn dysregulation associated with coronary ischemia/reperfusion injury and smooth muscle cell dysfunction. As the majority of studies concerning Zn have been conducted under non-physiological hyperoxic conditions, we compare the effects of Zn chelation or supplementation on total intracellular Zn content, antioxidant NRF2 targeted gene transcription and hypoxia/reoxygenation-induced reactive oxygen species generation in human coronary artery smooth muscle cells (HCASMC) pre-adapted to hyperoxia (18 kPa O2) or normoxia (5 kPa O2). Expression of the smooth muscle marker SM22-α was unaffected by lowering pericellular O2, whereas calponin-1 was significantly upregulated in cells under 5 kPa O2, indicating a more physiological contractile phenotype under 5 kPa O2. Inductively coupled plasma mass spectrometry established that Zn supplementation (10 µM ZnCl2 + 0.5 µM pyrithione) significantly increased total Zn content in HCASMC under 18 but not 5 kPa O2. Zn supplementation increased metallothionein mRNA expression and NRF2 nuclear accumulation in cells under 18 or 5 kPa O2. Notably, NRF2 regulated HO-1 and NQO1 mRNA expression in response to Zn supplementation was only upregulated in cells under 18 but not 5 kPa. Furthermore, whilst hypoxia increased intracellular glutathione (GSH) in cells pre-adapted to 18 but not 5 kPa O2, reoxygenation had negligible effects on GSH or total Zn content. Reoxygenation-induced superoxide generation in cells under 18 kPa O2 was abrogated by PEG-superoxide dismutase but not by PEG-catalase, and Zn supplementation, but not Zn chelation, attenuated reoxygenation-induced superoxide generation in cells under 18 but not 5kPaO2, consistent with a lower redox stress under physiological normoxia. Our findings highlight that culture of HCASMC under physiological normoxia recapitulates an in vivo contractile phenotype and that effects of Zn on NRF2 signaling are altered by oxygen tension.


Assuntos
Vasos Coronários , Hiperóxia , Humanos , Vasos Coronários/metabolismo , Fator 2 Relacionado a NF-E2/genética , Fator 2 Relacionado a NF-E2/metabolismo , Antioxidantes/metabolismo , Superóxidos/metabolismo , Zinco/farmacologia , Zinco/metabolismo , Hipóxia/metabolismo , Miócitos de Músculo Liso/metabolismo , Hiperóxia/metabolismo , Glutationa/metabolismo , RNA Mensageiro/metabolismo , Suplementos Nutricionais
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