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1.
Nucleic Acids Res ; 51(10): 5040-5055, 2023 06 09.
Artigo em Inglês | MEDLINE | ID: mdl-37114996

RESUMO

A large number of transcription factors have been shown to bind and interact with mitotic chromosomes, which may promote the efficient reactivation of transcriptional programs following cell division. Although the DNA-binding domain (DBD) contributes strongly to TF behavior, the mitotic behaviors of TFs from the same DBD family may vary. To define the mechanisms governing TF behavior during mitosis in mouse embryonic stem cells, we examined two related TFs: Heat Shock Factor 1 and 2 (HSF1 and HSF2). We found that HSF2 maintains site-specific binding genome-wide during mitosis, whereas HSF1 binding is somewhat decreased. Surprisingly, live-cell imaging shows that both factors appear excluded from mitotic chromosomes to the same degree, and are similarly more dynamic in mitosis than in interphase. Exclusion from mitotic DNA is not due to extrinsic factors like nuclear import and export mechanisms. Rather, we found that the HSF DBDs can coat mitotic chromosomes, and that HSF2 DBD is able to establish site-specific binding. These data further confirm that site-specific binding and chromosome coating are independent properties, and that for some TFs, mitotic behavior is largely determined by the non-DBD regions.


Assuntos
Cromossomos , Proteínas de Choque Térmico , Mitose , Fatores de Transcrição , Animais , Camundongos , Cromossomos/genética , Cromossomos/metabolismo , DNA/metabolismo , Fatores de Transcrição de Choque Térmico/genética , Proteínas de Choque Térmico/genética , Proteínas de Choque Térmico/metabolismo , Fatores de Transcrição/metabolismo
2.
Genome ; 64(4): 449-466, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33113335

RESUMO

At the heart of the transcription process is the specific interaction between transcription factors (TFs) and their target DNA sequences. Decades of molecular biology research have led to unprecedented insights into how TFs access the genome to regulate transcription. In the last 20 years, advances in microscopy have enabled scientists to add imaging as a powerful tool in probing two specific aspects of TF-DNA interactions: structure and dynamics. In this review, we examine how applications of diverse imaging technologies can provide structural and dynamic information that complements insights gained from molecular biology assays. As a case study, we discuss how applications of advanced imaging techniques have reshaped our understanding of TF behavior across the cell cycle, leading to a rethinking in the field of mitotic bookmarking.


Assuntos
DNA/química , Genoma , Fatores de Transcrição/genética , Sequência de Bases , Microscopia Crioeletrônica , Cristalografia por Raios X , Regulação da Expressão Gênica , Humanos
3.
J Am Geriatr Soc ; 65(1): 207-211, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27902840

RESUMO

As many as 50% of people satisfying diagnostic criteria for dementia are undiagnosed. A team-based training program for dementia screening and management was developed targeting four professions (medicine, nursing, pharmacy, social work) whose scope of practice involves dementia care. An interprofessional group of 10 faculty members was trained to facilitate four interactive competency stations on dementia screening, differential diagnoses, dementia management and team care planning, and screening for and managing caregiver stress. Registrants were organized into teams of five members, with at least one member of each profession per team. The teams rotated through all stations, completing assigned tasks through interprofessional collaboration. A total of 117 professionals (51 physicians, 11 nurses, 20 pharmacists, 24 social workers, 11 others) successfully completed the program. Change scores showed significant improvements in overall competence in dementia assessment and intervention (very low = 1; very high = 5; average change 1.12, P < .001), awareness of importance of dementia screening (average change 0.85, P < .001), and confidence in managing medication (average change 0.86, P < .001). Eighty-seven participants (82.9%) reported feeling confident or very confident using the dementia toolkit at their home institution. In a survey administered 3 months after the session, 48 respondents reported that they had changed their approach to administering the Mini-Cog test (78%), differential diagnosis (49%), assessment of caregiver stress (74%), and accessing community support and services (69%). In conclusion, team-based interprofessional competency training is a team teaching model that can be used to enhance competency in dementia screening and management in medical, nursing, pharmacy, and social work practitioners.


Assuntos
Competência Clínica , Demência/diagnóstico , Demência/terapia , Educação Continuada , Equipe de Assistência ao Paciente , Congressos como Assunto , Humanos , Corpo Clínico , Testes Neuropsicológicos , Recursos Humanos de Enfermagem , Farmacêuticos , Assistentes Sociais
4.
J Am Geriatr Soc ; 63(11): 2395-9, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26503548

RESUMO

Depression is common in nursing facility residents. Depression data obtained using the Minimum Data Set (MDS) 3.0 offer opportunities for improving diagnostic accuracy and care quality. How best to integrate MDS 3.0 and other data into quality improvement (QI) activity is untested. The objective was to increase nursing home (NH) capability in using QI processes and to improve depression assessment and management through focused mentorship and team building. This was a 6-month intervention with five components: facilitated collection of MDS 3.0 nine-item Patient Health Questionnaire (PHQ-9) and medication data for diagnostic interpretation; education and modeling on QI approaches, team building, and nonpharmacological depression care; mentored team meetings; educational webinars; and technical assistance. PHQ-9 and medication data were collected at baseline and 6 and 9 months. Progress was measured using team participation measures, attitude and care process self-appraisal, mentor assessments, and resident depression outcomes. Five NHs established interprofessional teams that included nursing (44.1%), social work (20.6%), physicians (8.8%), and other disciplines (26.5%). Members participated in 61% of eight offered educational meetings (three onsite mentored team meetings and five webinars). Competency self-ratings improved on four depression care measures (P = .05 to <.001). Mentors observed improvement in team process and enthusiasm during team meetings. For 336 residents with PHQ-9 and medication data, depression scores did not change while medication use declined, from 37.2% of residents at baseline to 31.0% at 9 months (P < .001). This structured mentoring program improved care processes, achieved medication reductions, and was well received. Application to other NH-prevalent syndromes is possible.


Assuntos
Depressão/terapia , Melhoria de Qualidade , Idoso , Pessoal de Saúde/educação , Instituição de Longa Permanência para Idosos , Humanos , Mentores , Casas de Saúde
5.
Health Educ Behav ; 41(1 Suppl): 19S-26S, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25274707

RESUMO

Current public health and aging service agency personnel have little training in gerontology, and virtually no training in evidence-based health promotion and disease management programs for older adults. These programs are rapidly becoming the future of our community-based long-term care support system. The purpose of this project was to develop and test a model community college career technical education program, Skills for Healthy Aging Resources and Programs (SHARP), for undergraduate college students, current personnel in aging service and community organizations, and others interested in retraining. A multidisciplinary cross-sector team from disciplines of public health, sociology, gerontology and nursing developed four competency-based courses that focus on healthy aging, behavior change strategies, program management, an internship, and an option for leader training in the Chronic Disease Self-Management Program. To enhance implementation and fidelity, intensive faculty development training was provided to all instructors and community agency partners. Baseline and postprogram evaluation of competencies for faculty and students was conducted. Process evaluation for both groups focused on satisfaction with the curricula and suggestions for program improvement. SHARP has been piloted five times at two community colleges. Trainees (n = 113) were primarily community college students (n = 108) and current aging service personnel (n = 5). Statistically significant improvements in all competencies were found for both faculty and students. Process evaluation outcomes identified the needed logical and component adaptations to enhance the feasibility of program implementation, dissemination, and student satisfaction. The SHARP program provides a well-tested, evidence-based effective model for addressing workforce preparation in support of healthy aging service program expansion and delivery.


Assuntos
Envelhecimento , Emprego , Geriatria/educação , Promoção da Saúde/organização & administração , Serviços de Saúde para Idosos/organização & administração , Adolescente , Adulto , Idoso , Prática Clínica Baseada em Evidências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Organizacionais , Desenvolvimento de Programas , Autocuidado , Adulto Jovem
6.
Gerontol Geriatr Educ ; 30(4): 317-31, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19927252

RESUMO

A logic model is a communications tool that graphically represents a program's resources, activities, priority target audiences for change, and the anticipated outcomes. This article describes the logic model development process undertaken by the California Geriatric Education Center in spring 2008. The CGEC is one of 48 Geriatric Education Centers across the nation, funded by the U.S. Health Resources Services Administration, Bureau of Health Professions. Engaging this diverse group of stakeholders to develop a logic model has added substantial value to program planning, implementation, and evaluation of key performance outcomes.


Assuntos
Geriatria/educação , Serviços de Saúde para Idosos/organização & administração , Modelos Logísticos , Modelos Educacionais , Avaliação de Programas e Projetos de Saúde/métodos , California , Acessibilidade aos Serviços de Saúde , Serviços de Saúde para Idosos/normas , Humanos , Qualidade da Assistência à Saúde , Recursos Humanos
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