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1.
Nature ; 622(7982): 308-314, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37794184

RESUMO

Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action1,2. Ongoing developments in taxonomy, threatening processes and research further underscore the need for reassessment3,4. Here we report the findings of the second Global Amphibian Assessment, evaluating 8,011 species for the International Union for Conservation of Nature Red List of Threatened Species. We find that amphibians are the most threatened vertebrate class (40.7% of species are globally threatened). The updated Red List Index shows that the status of amphibians is deteriorating globally, particularly for salamanders and in the Neotropics. Disease and habitat loss drove 91% of status deteriorations between 1980 and 2004. Ongoing and projected climate change effects are now of increasing concern, driving 39% of status deteriorations since 2004, followed by habitat loss (37%). Although signs of species recoveries incentivize immediate conservation action, scaled-up investment is urgently needed to reverse the current trends.


Assuntos
Anfíbios , Mudança Climática , Ecossistema , Espécies em Perigo de Extinção , Animais , Anfíbios/classificação , Biodiversidade , Mudança Climática/estatística & dados numéricos , Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/tendências , Espécies em Perigo de Extinção/estatística & dados numéricos , Espécies em Perigo de Extinção/tendências , Extinção Biológica , Risco , Urodelos/classificação
3.
Neurobiol Dis ; 192: 106439, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38365046

RESUMO

Except for aging, carrying the APOE ε4 allele (APOE4) is the most important risk factor for sporadic Alzheimer's disease. APOE4 carriers may have reduced capacity to recycle lipids, resulting in white matter microstructural abnormalities. In this study, we evaluated whether white matter impairment measured by diffusion tensor imaging (DTI) differs between healthy individuals with a different number of APOE4 alleles, and whether white matter impairment associates with brain beta-amyloid (Aß) load and serum levels of neurofilament light chain (NfL). We studied 96 participants (APOE3/3, N = 37; APOE3/4, N = 39; APOE4/4, N = 20; mean age 70.7 (SD 5.22) years, 63% females) with a brain MRI including a DTI sequence (N = 96), Aß-PET (N = 89) and a venous blood sample for the serum NfL concentration measurement (N = 88). Fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD) and axial diffusivity (AxD) in six a priori-selected white matter regions-of-interest (ROIs) were compared between the groups using ANCOVA, with sex and age as covariates. A voxel-weighted average of FA, MD, RD and AxD was calculated for each subject, and correlations with Aß-PET and NfL levels were evaluated. APOE4/4 carriers exhibited a higher MD and a higher RD in the body of corpus callosum than APOE3/4 (p = 0.0053 and p = 0.0049, respectively) and APOE3/3 (p = 0.026 and p = 0.042). APOE4/4 carriers had a higher AxD than APOE3/4 (p = 0.012) and APOE3/3 (p = 0.040) in the right cingulum adjacent to cingulate cortex. In the total sample, composite MD, RD and AxD positively correlated with the cortical Aß load (r = 0.26 to 0.33, p < 0.013 for all) and with serum NfL concentrations (r = 0.31 to 0.36, p < 0.0028 for all). In conclusion, increased local diffusivity was detected in cognitively unimpaired APOE4/4 homozygotes compared to APOE3/4 and APOE3/3 carriers, and increased diffusivity correlated with biomarkers of Alzheimer's disease and neurodegeneration. White matter impairment seems to be an early phenomenon in the Alzheimer's disease pathologic process in APOE4/4 homozygotes.


Assuntos
Doença de Alzheimer , Substância Branca , Feminino , Humanos , Idoso , Masculino , Substância Branca/diagnóstico por imagem , Substância Branca/patologia , Apolipoproteína E4/genética , Imagem de Tensor de Difusão , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/genética , Doença de Alzheimer/patologia , Apolipoproteína E3 , Encéfalo/diagnóstico por imagem , Encéfalo/patologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-39107884

RESUMO

OBJECTIVES: The incidence of anti-neutrophil cytoplasmic antibodies (ANCA) associated vasculitis (AAV) shows disparate results due to variable classification criteria and heterogeneous-population series. We aimed to estimate the incidence of AAV in a well-defined population with standardized classification criteria. METHODS: Population-based study of AAV patients diagnosed from January 2000 to December 2023 in Cantabria, Northern Spain. Patients were classified according to ACR/EULAR 2022 into granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), or unclassified vasculitis if the criteria were not met. Eosinophilic granulomatosis with polyangiitis (EGPA) patients were not included. The annual incidence rates were estimated by cases over 1,000 000 (106) (95% CI) including overall AVV, type of AAV, sex, and year of diagnosis. A literature review was also performed. RESULTS: We included 152 (80/72 men; mean age; 70.6 ± 13.18 years) patients. They were classified as MPA (67; 44%), GPA (64; 42.2%), and unclassified vasculitis (21; 13.8%). Annual incidence was 13.4 (10-16.8)/106 [male 14.5 (10.5-18.5); female 12.1 (8.7-15.6)]. The Annual incidence of MPA was 5.9 (4-7.8)/106 and GPA 5.6 (3.9-7.3)/106. The mean Annual incidence increased from 6.1 (4.5-7.7)/106-16.5 (5.6-27.4)/106 in the last three years, particularly, in GPA from 2.3 (0.3-4.9)/106-8.2 (2-14.5)/106. The prevalence of AAV was 184.7 (181-188)/106. CONCLUSION: During a 20-year period we found that the incidence of AAV (GPA and MPA) in Northern Spain is higher than Southern Spain, but lower than Northern European countries. An increase in the incidence was observed in the last years.

5.
J Gen Intern Med ; 37(16): 4120-4129, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35657467

RESUMO

INTRODUCTION: Events of spring 2020-the COVID19 pandemic and re-birth of a social justice movement-have thrown disparities in disease risk, morbidity, and mortality in sharp relief. In response, healthcare organizations have shifted attentions and resources towards equity, diversity, and inclusion (EDI) issues and initiatives like never before. Focused, proven equity-centered skill and mindset development is needed for healthcare professionals to operationalize these pledges and stated aims. AIM: This article highlights program evaluation results for this Clinical Scholars National Leadership Institute (CSNLI) specific to EDI. We will show that CSNLI imparts the valuable and essential skills to health professionals that are needed to realize health equity through organizational and system change. SETTING: Initial cohort of 29 participants in CSNLI, engaging in the program over 3 years through in-person and distance-based learning offerings and activities. PROGRAM DESCRIPTION: The CSNLI is a 3-year, intensive leadership program that centers EDI skill development across personal, interpersonal, organizational, and systems domains through its design, competencies, and curriculum. PROGRAM EVALUATION: A robust evaluation following the Kirkpatrick Model offers analysis of four data collecting activities related to program participants' EDI learning, behavioral change, and results. DISCUSSION: Over the course of the program, participants made significant gains in competencies related to equity, diversity, and inclusion. Furthermore, participants demonstrated growth in behavior change and leadership activities in the areas of organizational and system change. Results demonstrate the need to center both leader and leadership development on equity, diversity, and inclusion curriculum to make real change in the US Healthcare System.


Assuntos
COVID-19 , Equidade em Saúde , Humanos , Liderança , COVID-19/epidemiologia , Currículo , Equipe de Assistência ao Paciente
6.
Dis Colon Rectum ; 64(5): 576-582, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33939388

RESUMO

BACKGROUND: Below the anterior peritoneal reflection, the anterior rectal wall and mesorectum are separated from the posterior vaginal wall by a virtual rectovaginal space. In this space, the description of a specific and independent rectovaginal septum as a female counterpart of Denonvilliers fascia has been the subject of debate over the years. OBJECTIVE: The aim of this study is to perform an accurate anatomical study of the rectovaginal area in a cadaveric simulation model of total mesorectal excision to evaluate the possible structures and the dissection planes contained within the rectovaginal space. DESIGN AND SETTING: This is a cadaveric study performed at the University of Valencia. PATIENTS: The pelvises of 25 formalin-preserved female cadavers were dissected. All the included specimens were sectioned in a midsagittal plane, at the level of the middle axis of the anal canal. MAIN OUTCOME MEASURES: Careful and detailed dissection was performed to visualize the anatomical structures and potential dissection planes during anterior mesorectal dissection in cadavers. Histological sections were made of the posterior vaginal wall. RESULTS: The rectovaginal space contains loose areolar tissue that allows an easy dissection plane distally. A distinct and independent rectovaginal fascia or septum is not present. The existence of 3 layers fused together in the posterior vaginal wall can be identified more or less precisely because of their different coloration. The histological study confirms this macroscopic arrangement of the posterior vaginal wall in 3 layers: the mucosa, the muscular, and the adventitia. An independent rectovaginal septum can be generated only with a splitting of the adventitia. LIMITATIONS: The cadaveric pelvic specimens of the oldest donors might have had age-related degeneration. CONCLUSIONS: The present anatomical study has shown only a plane of loose areolar tissue between the rectal and vaginal wall. We can conclude that there is no independent fascia or septum in the rectovaginal space. See Video Abstract at http://links.lww.com/DCR/B456. ANATOMÍA QUIRÚRGICA DEL ESPACIO RECTOVAGINAL: ¿EXISTE UN TABIQUE RECTOVAGINAL INDEPENDIENTE O UNA FASCIA DE DENONVILLIERS EN LAS MUJERES: Debajo del reflejo peritoneal anterior, la pared rectal anterior y el mesorrecto están separados de la pared vaginal posterior por un espacio rectovaginal virtual. En este espacio, la descripción de un tabique rectovaginal independiente específico como contraparte femenina de la fascia de Denonvilliers ha sido objeto de debate a lo largo de los años.Realizar un estudio anatómico preciso del área rectovaginal en un modelo de simulación cadavérica de escisión mesorrectal total, con el fin de evaluar las posibles estructuras y los planos de disección contenidos en el espacio rectovaginal.estudio cadavérico realizado en la Universidad de Valencia.Se disecaron las pelvis de 25 cadáveres femeninos conservados en formalina. Todas las muestras incluidas fueron seccionadas en un plano medio sagital, a la altura del eje medio del canal anal.Se llevó a cabo una disección cuidadosa y detallada para visualizar las estructuras anatómicas y los posibles planos de disección durante la disección mesorrectal anterior en cadáveres. Se realizaron cortes histológicos de la pared vaginal posterior.El espacio rectovaginal contiene tejido areolar laxo que permite un plano de disección fácil distalmente. No hay fascia o tabique rectovaginal distinto e independiente. La existencia de tres capas fusionadas en la pared vaginal posterior puede identificarse con mayor o menor precisión debido a su diferente coloración. El estudio histológico confirma esta disposición macroscópica de la pared vaginal posterior en tres capas: la mucosa, la muscular y la adventicia. Un tabique rectovaginal independiente solo se puede generar con una división de la adventicia.Las muestras pélvicas de cadáveres de los donantes más antiguos pueden haber tenido degeneración relacionada con la edad.El estudio anatómico actual solo ha mostrado un plano de tejido areolar laxo entre la pared rectal y vaginal. Podemos concluir que no hay fascia o tabique independiente en el espacio rectovaginal. Consulte Video Resumen en http://links.lww.com/DCR/B456. (Traducción-Dr. Adrian Ortega).


Assuntos
Fáscia/anatomia & histologia , Mesentério/anatomia & histologia , Reto/anatomia & histologia , Vagina/anatomia & histologia , Túnica Adventícia/anatomia & histologia , Cadáver , Dissecação , Feminino , Humanos , Pelve/anatomia & histologia
7.
Matern Child Health J ; 25(9): 1437-1446, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33950326

RESUMO

OBJECTIVES: To gain insight into how participants in the Maternal and Child Health Public Health Leadership Institute (MCH PHLI) report applying the leadership skills gained through the program at the "Others" and "Wider Community" levels of the MCH Leadership Competencies 4.0. METHODS: 111 mid- to senior-level MCH leaders participating in the MCH PHLI gave < 5 min oral presentations detailing the impacts resulting from implementation of the skills gained through the leadership development training. Presentations were recorded and transcribed then qualitatively analyzed in reference to the MCH Leadership Competencies 4.0. Impacts were stratified by the "Others" and "Wider Community" levels. RESULTS: Analysis resulted in 1510 separate coded examples, 948 of which were coded as aligning with the MCH Leadership Competency 4.0 areas of "Others", "Wider Community" and with an additional emerging competency. In many examples Participants estimated the numbers of people affected by these leadership activities, which totaled more than 80,773 people across the US. CONCLUSIONS FOR PRACTICE: This analysis suggests that mid-to-senior level intensive leadership development strategies benefit organizations, communities, and systems quite broadly through a virtual "ripple effect" of training. Capturing qualitative data can help elucidate the return on investment for leader development programs in terms of impacts on communities and systems.


Assuntos
Liderança , Saúde Pública , Criança , Saúde da Criança , Pessoal de Saúde , Humanos , Centros de Saúde Materno-Infantil , Avaliação de Programas e Projetos de Saúde
8.
Matern Child Health J ; 25(7): 1094-1101, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33387215

RESUMO

OBJECTIVES: To gain insights into how participants in the Maternal and Child Health Public Health Leadership Institute (MCH PHLI) report applying the personal leadership skills gained through the program at the "Self" level of the MCH Leadership Competencies 4.0. METHODS: 112 mid- to senior-level MCH leaders completed the MCH PHLI, which is a year-long intensive leadership training program. At graduation, 111 participants gave < 5-min oral presentations detailing the actions taken and impact created by implementation of the skills gained through the MCH PHLI training. Presentations were recorded, transcribed and then qualitatively analyzed in reference to the "Self" level of the MCH Leadership Competencies 4.0. RESULTS: Participants reported 562 coded examples of activities in which they implemented skills aligning with each competency in the Self-Level of the MCH Leadership Competencies 4.0 and with three other competency areas that emerged as themes from the data: networking, confidence, and career advancement. CONCLUSIONS FOR PRACTICE: This analysis suggests that intensive leadership development strategies focused on the mid-to-senior level leader benefit the individual and their organizations in broad and strategic ways that can be captured and described. Further, these applications of skills can create a virtual "ripple effect" of the workforce development program, by ultimately impacting a far greater number of people. Finally, this type of reflective assignment can be a valuable addition to intensive workforce development programs.


Assuntos
Liderança , Saúde Pública , Criança , Saúde da Criança , Humanos , Centros de Saúde Materno-Infantil , Avaliação de Programas e Projetos de Saúde
9.
J Clin Periodontol ; 47(11): 1304-1316, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32777086

RESUMO

AIM: This study aimed to characterize the salivary proteome during the induction and resolution of gingival inflammation in the course of human experimental gingivitis (EG), and to cluster the proteomic profiles based on the clinically defined "slow" and "fast" response patterns. MATERIALS AND METHODS: A total of 50 unstimulated whole saliva were obtained from the EG model which was induced over 21 days (days 0, 7, 14 and 21), followed by a two-week resolution phase (day 35). Label-free quantitative proteomics using liquid chromatography-tandem mass spectrometry was applied. Regulated proteins were subject to Gene Ontology enrichment analysis. RESULTS: A total of 804 human proteins were quantified by ≥ 2 peptides. Principal component analysis depicted significant differences between "fast" and "slow" responders. Despite gingival and plaque scores being similar at baseline among the two groups, "fast" responders presented with 48 proteins that were at > 4-fold higher levels than "slow" responders. These up-regulated proteins showed enrichment in "antigen presentation" and "proteolysis." CONCLUSIONS: Together, these findings highlight the utility of integrative systems-level quantitative proteomic approaches to unravel the molecular basis of "salivary proteotypes" associated with gingivitis dubbed as "fast" and "slow" responders. Hence, these differential responses may help prognosticate individual susceptibility to gingival inflammation.


Assuntos
Gengivite , Proteômica , Humanos , Índice Periodontal , Proteoma , Saliva
10.
Biochim Biophys Acta Mol Basis Dis ; 1863(11): 2882-2890, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28716706

RESUMO

Parkinson's disease (PD) is a degenerative disorder characterized by several motor symptoms including shaking, rigidity, slow movement and difficult walking, which has been associated to the death of nigro-striatal dopaminergic neurons. >90% of PD patients also present olfactory dysfunction. Although the molecular mechanisms responsible for this disease are not clear, hereditary PD is linked to mutations in specific genes, including the PTEN-induced putative kinase 1 (PINK1). In this work we provide for the first time a thorough temporal description of the behavioral effects induced by a mutation in the PINK1 gene in adult Drosophila, a previously described animal model for PD. Our data suggests that the motor deficits associated to PD are fully revealed only by the third week of age. However, olfactory dysfunction is detected as early as the first week of age. We also provide immunofluorescence and neurochemical data that let us propose for the first time the idea that compensatory changes occur in this Drosophila model for PD. These compensatory changes are associated to specific components of the dopaminergic system: the biosynthetic enzymes, Tyrosine hydroxylase and Dopa decarboxylase, and the Dopamine transporter, a plasma membrane protein involved in maintaining dopamine extracellular levels at physiologically relevant levels. Thus, our behavioral, immunofluorescence and neurochemical data help define for the first time presymptomatic and symptomatic phases in this PD animal model, and that compensatory changes occur in the dopaminergic neurons in the presymptomatic stage.


Assuntos
Comportamento Animal , Dopamina/metabolismo , Neurônios Dopaminérgicos/metabolismo , Doença de Parkinson/metabolismo , Animais , Modelos Animais de Doenças , Neurônios Dopaminérgicos/patologia , Proteínas de Drosophila/genética , Proteínas de Drosophila/metabolismo , Drosophila melanogaster , Doença de Parkinson/genética , Doença de Parkinson/patologia , Doença de Parkinson/fisiopatologia , Proteínas Serina-Treonina Quinases/genética , Proteínas Serina-Treonina Quinases/metabolismo
11.
J Public Health Manag Pract ; 23(5): 454-460, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-27997477

RESUMO

OBJECTIVES: To assess the self-selected asynchronous leadership module-based learning choices of public health professionals participating in the Maternal and Child Health Public Health Leadership Institute (MCH PHLI). METHODS: Online module completion and evaluation data were used to determine the topics most utilized by the Fellows; whether the topics and mode of training were acceptable, relevant, and practical; and whether participant characteristics explained any usage patterns. PARTICIPANTS: A total of 109 enrolled Fellows in the MCH PHLI program. MAIN OUTCOME MEASURES: Module frequency of selection by Fellows; Fellows' rating scores in regard to relevance, practicality, and acceptability of module topics. RESULTS: All program titles were highly rated. The 5 most frequently selected module topics were employee engagement (87.2%), talent acquisition strategies (84.4%), employee motivation (79.8%), emotional intelligence (78.9%), and workforce development strategies (68.8%). The least accessed topics focused on cultural competence (15.6%), social marketing (25.7%), effective communication and advocacy (25.7%), family partnerships (25.9%), and creating learning organizations (31.2%). All module topics provided were rated as relevant, practical, and acceptable to these public health leaders. CONCLUSION: Self-directed computer-based learning was rated strongly by the MCH public health leaders in this study. Such an approach can be used to customize training to individual needs and interests. These findings suggest that inclusion of skills that enable public health leaders to effectively work with and through others was of core interest in the MCH PHLI. The finding of higher usage of topics related to workforce management can provide guidance for those developing leadership development programs for maternal and child health professionals. In addition, leadership needs and interests should be assessed regularly to ensure that competency-based leadership development guidelines are adapting to the evolving and complex challenges faced by leaders. While these results were tested in MCH professionals, they may be generalizable to other disciplines within the field of public health.

12.
Crit Care Med ; 43(9): 1887-97, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26121075

RESUMO

OBJECTIVE: To evaluate pregnant/postpartum patients requiring ICUs admission in Argentina, describe characteristics of mothers and outcomes for mothers/babies, evaluate risk factors for maternal-fetal-neonatal mortality; and compare outcomes between patients admitted to public and private health sectors. DESIGN: Multicenter, prospective, national cohort study. SETTING: Twenty ICUs in Argentina (public, 8 and private, 12). PATIENTS: Pregnant/postpartum (< 42 d) patients admitted to ICU. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Three hundred sixty-two patients were recruited, 51% from the public health sector and 49% from the private. Acute Physiology and Chronic Health Evaluation II was 8 (4-12); predicted/observed mortality, 7.6%/3.6%; hospital length of stay, 7 days (5-13 d); and fetal-neonatal losses, 17%. Public versus private health sector patients: years of education, 9 ± 3 versus 15 ± 3; transferred from another hospital, 43% versus 12%; Acute Physiology and Chronic Health Evaluation II, 9 (5-13.75) versus 7 (4-9); hospital length of stay, 10 days (6-17 d) versus 6 days (4-9 d); prenatal care, 75% versus 99.4%; fetal-neonatal losses, 25% versus 9% (p = 0.000 for all); and mortality, 5.4% versus 1.7% (p = 0.09). Complications in ICU were multiple-organ dysfunction syndrome (34%), shock (28%), renal dysfunction (25%), and acute respiratory distress syndrome (20%); all predominated in the public sector. Sequential Organ Failure Assessment (during first 24 hr of admission) score of at least 6.5 presented the best discriminative power for maternal mortality. Independent predictors of maternal-fetal-neonatal mortality were Acute Physiology and Chronic Health Evaluation II, education level, prenatal care, and admission to tertiary hospitals. CONCLUSIONS: Patients spent a median of 7 days in hospital; 3.6% died. Maternal-fetal-neonatal mortality was determined not only by acuteness of illness but to social and healthcare aspects like education, prenatal control, and being cared in specialized hospitals. Sequential Organ Failure Assessment (during first 24 hr of admission), easier to calculate than Acute Physiology and Chronic Health Evaluation II, was a better predictor of maternal outcome. Evident health disparities existed between patients admitted to public versus private hospitals: the former received less prenatal care, were less educated, were more frequently transferred from other hospitals, were sicker at admission, and developed more complications; maternal and fetal-neonatal mortality were higher. These findings point to the need of redesigning healthcare services to account for these inequities.


Assuntos
Estado Terminal/mortalidade , Hospitais Privados/estatística & dados numéricos , Hospitais Públicos/estatística & dados numéricos , Unidades de Terapia Intensiva/estatística & dados numéricos , Período Pós-Parto , APACHE , Adulto , Argentina/epidemiologia , Feminino , Humanos , Recém-Nascido , Tempo de Internação , Mortalidade Materna , Escores de Disfunção Orgânica , Mortalidade Perinatal , Gravidez , Resultado da Gravidez , Estudos Prospectivos , Fatores de Risco , Fatores Socioeconômicos
13.
Matern Child Health J ; 19(2): 343-52, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25081238

RESUMO

To assess the influence of intensive focused leadership training on self-evaluation of leadership skills among Maternal and Child Health (MCH) professionals enrolled in the Maternal and Child Health Public Health Leadership Institute (MCH PHLI). Senior-level MCH leaders (n = 54) participated in the first two cohorts of the MCH PHLI, a senior-level training program funded through the Maternal and Child Health Bureau. Participants were asked to complete a retrospective pre- and post-test rating inventory at program completion. Participants self-identified their skill level across 20 leadership skills that were the focus of the training program. These skills were derived from the MCH Leadership Competencies, 3.0 and literature reviews, and then divided into two domains: Core leadership skills and Organizational/Institutional leadership skills. Data were analyzed to determine whether participants perceived skill level increased by the end of their training year. A one-sided (upper) paired T Test and a Wilcoxen Signed Rank Sum Test were used to determine statistical significance. Increases in perceived skill levels were found to be statistically significant at the alpha = .01 level for all 20 target skills. The MCH PHLI model of intensive leadership development, incorporating a hybrid approach of onsite and distance-based learning, was broadly effective in building targeted leadership skills as perceived by participants.


Assuntos
Educação Profissional em Saúde Pública/métodos , Liderança , Centros de Saúde Materno-Infantil/organização & administração , Competência Profissional , Melhoria de Qualidade , Adulto , Estudos de Coortes , Educação Continuada/organização & administração , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Saúde Pública/educação , Estudos Retrospectivos , Autoeficácia , Estatísticas não Paramétricas , Estados Unidos
14.
Neural Plast ; 2015: 658918, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26380118

RESUMO

The most studied form of associative learning in Drosophila consists in pairing an odorant, the conditioned stimulus (CS), with an unconditioned stimulus (US). The timely arrival of the CS and US information to a specific Drosophila brain association region, the mushroom bodies (MB), can induce new olfactory memories. Thus, the MB is considered a coincidence detector. It has been shown that olfactory information is conveyed to the MB through cholinergic inputs that activate acetylcholine (ACh) receptors, while the US is encoded by biogenic amine (BA) systems. In recent years, we have advanced our understanding on the specific neural BA pathways and receptors involved in olfactory learning and memory. However, little information exists on the contribution of cholinergic receptors to this process. Here we evaluate for the first time the proposition that, as in mammals, muscarinic ACh receptors (mAChRs) contribute to memory formation in Drosophila. Our results show that pharmacological and genetic blockade of mAChRs in MB disrupts olfactory aversive memory in larvae. This effect is not explained by an alteration in the ability of animals to respond to odorants or to execute motor programs. These results show that mAChRs in MB contribute to generating olfactory memories in Drosophila.


Assuntos
Aprendizagem da Esquiva/efeitos dos fármacos , Drosophila melanogaster/fisiologia , Aprendizagem/efeitos dos fármacos , Receptores Muscarínicos/efeitos dos fármacos , Animais , Atropina/farmacologia , Aminas Biogênicas/fisiologia , Larva , Locomoção/efeitos dos fármacos , Memória/efeitos dos fármacos , Antagonistas Muscarínicos/farmacologia , Corpos Pedunculados/fisiologia , Odorantes , Receptores Muscarínicos/biossíntese , Receptores Muscarínicos/genética
15.
Am J Otolaryngol ; 35(5): 636-40, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24888795

RESUMO

PURPOSE: One of the disadvantages of having a tracheostomy tube is not being able to vocalize. A speaking valve connected to a tracheostomy tube allows patients to vocalize. Some studies have shown that tracheostomy-speaking valve can improve swallowing, respiratory secretion management, and expedite decannulation. There is scant research about speaking valve use during sleep. The aim of this study is to evaluate the safety of tracheostomy-speaking valve overnight, during sleep. MATERIALS AND METHODS: Children, ages 1-18 years, with tracheostomy tubes who were using a tracheostomy-speaking valve during daytime/awake periods, were included in this study. The subjects had baseline monitoring of their heart rate, respiratory rate, oxygen saturation, and end tidal carbon dioxide measurement the night prior to the intervention, throughout the night at scheduled intervals. The tracheostomy-speaking valve was placed the following night and the same parameters were monitored and recorded throughout the study night. RESULTS: A total of 9 patients were recruited. In all subjects, the mean values of the overnight parameters showed no significant clinical variations between the baseline night and the study night. Repeated measure ANOVA analysis revealed no significant changes in the parameters over the 8 hours of recorded time. No major adverse events were recorded during the study night. CONCLUSION: This pilot study reveals that use of a tracheostomy-speaking valve during sleep, was not associated with adverse cardiopulmonary events. This is the first study to show that a tracheostomy-speaking valve might be safely used during sleep, in children.


Assuntos
Segurança de Equipamentos , Segurança do Paciente , Sono , Fala , Traqueostomia/instrumentação , Adolescente , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Monitorização Fisiológica , Projetos Piloto , Estudos Prospectivos
16.
Cureus ; 16(7): e63571, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39087145

RESUMO

Maori, the indigenous population of New Zealand, represent 17.1% of the country's population (Statistics New Zealand 2021) and are over-represented in all negative indices. In particular, Maori are underprivileged in terms of socioeconomics and health due to the residual effects of colonization. The global COVID-19 pandemic, caused by the novel coronavirus SARS-CoV-2, has been one of the most significant public health crises in modern history. Vulnerable populations, such as the elderly and those with underlying health conditions, were and remain at higher risk of severe outcomes. In the New Zealand context and given the health statistics, Maori were identified as a group that was at high risk from COVID-19. Using a mixed method approach, we attempt to identify the reasons why a cohort of New Zealand Maori with type II diabetes mellitus (DM II) and a history of regular attendance failed their Diabetes Annual Review (DAR) post-COVID-19. Twelve Maori participants were recruited (> 18 years) from a Maori Diabetes database of an urban General Practitioners (GP) Clinic in Northland. A 9-point questionnaire and an unstructured telephone conversation utilizing a Kaupapa Maori (Maori philosophy) approach were utilized, and data were collated.  Findings suggest the New Zealand government's COVID-19 vaccine mandates served to exacerbate Maori distrust of health professionals. Trust is the foundation of every successful relationship whether it be business, professional, health, or personal. Health delivery and uptake are based on this foundation. Whatever the reason for the loss of trust in the medical profession, historical colonial trauma, swayed by conspiracy theory, or otherwise, considering this factor should influence the structure and approach of public health initiatives directed toward Indigenous people internationally.

17.
J Healthc Leadersh ; 16: 235-254, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38946733

RESUMO

Purpose: Little is known about the long-term efficacy of virtual leadership training for physicians. This study compares two highly similar groups of Obstetricians-Gynecologists' (OB-GYN) 6-month post-program changes in competency and skills after experiencing equity-centered leadership training in a virtual or in-person format. Participants and Methods: Using a retrospective pre- and post-test method, we collected 6-month post-program data on 14 competencies for knowledge gains and skills use, comparing the virtual cohort (2021, n = 22) to the in-person cohort (2022, n = 33) in 55 total participants. Qualitative data from open-ended feedback questions informed on skills relevancy and professional impact since program participation. Results: Data indicate strong, statistically significant knowledge and skills retention in both cohorts, with 63% of the virtual and 85% of the in-person participants responding. Data indicate participants report the course having a positive impact on their healthcare provision and nearly all report they made changes to their communication and leadership approaches in the 6-months after the program. 59% of the virtual and 55% of the in-person cohorts report new leadership opportunities since their participation and that the course helped prepare them for those roles. Qualitative data support the need for the training, specific elements of the training these physicians found particularly helpful, and that the learning was "sticky", in that it stayed with them in the months post-program. There was a clear stated preference for in-person experiences. Conclusion: Either virtual or in-person leadership training can result in long-term (6-month) significant retention and application of knowledge and skills in physicians. While limited in size, this study suggests that in-person experiences seem to foster more effective bonds and also greater willingness to participate in post-program follow-up. Physicians find equity-centered leadership training to impact their subsequent communication and leadership practices and they report career benefits even in 6-month follow-up.


While physicians serve in many leadership roles in healthcare, leadership training is generally not part of their medical training. The American College of Obstetricians and Gynecologists (ACOG) Robert C. Cefalo Leadership Institute has provided an annual leadership training for obstetrician and gynecologist leaders since 2006. Our previous research has repeatedly shown the program is effective, with participants experiencing significant and impressive gains in leadership learning and skills development. The COVID-19 pandemic led to the 2021 program being held virtually with a return to an in-person format possible with the 2022 program. As such, the opportunity arose to compare the 6-month post-program learning and impact of these two formats, virtual versus in-person training, in two highly similar groups experiencing nearly identical program content. Both virtual and in-person participants rated their six-month post-program skill level/ability and skills use/implementation as significantly higher than pre-program and both groups noted the learning helped them be better physicians, communicators, and leaders. Additionally, many experienced new leadership opportunities in the 6-months post-program and most of those agreed that the program prepared them to take on those new roles. This study shows that our approach to physician leadership development is highly effective and that the learning demonstrated "stickiness" in that it persisted over time. While both virtual and in-person programs were highly effective, overwhelmingly the participants prefer in-person training to virtual training.

18.
Dev Dyn ; 241(12): 1901-10, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23129351

RESUMO

INTRODUCTION: Ephrin-B2 on osteoclasts was reported to promote bone formation as part of homeostasis by activating the EphB4 tyrosine kinase receptor on osteoblasts. Little is known about the role of ephrin-B signaling to EphBs in developmental bone formation. RESULTS: We observed expression of an ephrin-B2 LacZ chimeric allele in the periosteum, sutural bone fronts, and dura mater of embryonic and neonatal mice. Expression in the adult skull was confined to sutures, but was heavily upregulated at sites of bone injury. Culture of embryonic calvariae with soluble recombinant ephrin-B2/Fc doubled their bone content without altering suture width or overall skull morphology. Ephrin-B2/Fc also stimulated osteoblast marker gene expression in cultured MC3T3 preosteoblastic cells without the need for type 1 collagen-induced differentiation. EphB4 was absent in embryonic and adult skulls. However, EphB1 and EphB2, both physiological receptors for ephrin-Bs, were expressed at sites of osteogenesis, and EphB1 knockout mice displayed a reduction in calvarial bone content compared to controls. CONCLUSIONS: These data support a role for ephrin-B2 in the development and healing of bone through activation of osteoblast-specific gene expression. EphB1 and EphB2 are likely candidates receptors for the ephrin-B2 in bone.


Assuntos
Efrina-B2/metabolismo , Osteoblastos/metabolismo , Osteogênese/fisiologia , Crânio/embriologia , Animais , Antígenos de Diferenciação/biossíntese , Antígenos de Diferenciação/genética , Linhagem Celular , Efrina-B2/genética , Efrina-B2/farmacologia , Fragmentos Fc das Imunoglobulinas/genética , Fragmentos Fc das Imunoglobulinas/farmacologia , Camundongos , Camundongos Knockout , Técnicas de Cultura de Órgãos , Osteoblastos/citologia , Osteogênese/efeitos dos fármacos , Receptor EphB1/genética , Receptor EphB1/metabolismo , Receptor EphB2/genética , Receptor EphB2/metabolismo , Proteínas Recombinantes de Fusão/genética , Proteínas Recombinantes de Fusão/farmacologia , Crânio/citologia
19.
Sci Rep ; 13(1): 14463, 2023 09 02.
Artigo em Inglês | MEDLINE | ID: mdl-37660158

RESUMO

At-sea distributions of seabird species are strongly associated with the distribution patterns of their prey, which are influenced by physical oceanic features. During breeding and non-breeding seasons, seabirds move extraordinary distances among different environments. However, foraging site fidelity by seabirds appears to be high in areas of known high productivity, such as frontal zones and upwellings. Here, we present a tracking study for the Peruvian diving-petrel Pelecanoides garnotii, an endemic seabird of the highly productive Humboldt Current System, to assess whether adults use the same foraging areas throughout the year, combining data from nest monitoring and global location sensors (GLS) deployed on 12 individuals between two breeding seasons (2013-2014 and 2014-2015), in Choros Island (29°15'S; 71°32'W), Chile. Two main foraging areas were registered. During the breeding season, adults moved in the northern direction, between 60 to 144 km away from their colony, foraging in areas with high primary productivity. During the non-breeding period, they moved to southern latitudes (~ 1200 km). Adults spent 37% and 63% of their time in flight/land and on/underwater activities, respectively. We determined that birds move northward from their colony during breeding, where prey availability seems more predictable throughout the year. However, during the non-breeding period, it is likely that other environmental factors influence the distribution pattern of the Peruvian diving-petrel.


Assuntos
Aves , Cruzamento , Humanos , Adulto , Animais , Peru , Estações do Ano , Chile
20.
J Clin Transl Sci ; 7(1): e35, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36845307

RESUMO

Participants in the leadership breakout session at the Clinical Translational Science Awards (CTSA) virtual 2020 conference discussed and ranked six recommendations in terms of feasibility, impact, and priority for advancing Diversity, Equity, and Inclusion (DEI) efforts to elevate underrepresented populations to leadership positions in CTSAs and their broader institutions. A thematic analysis of chat and polling data identified challenges and opportunities to achieve DEI goals, with the three most promising recommendations as: cross-institutional Principal Investigator (P.I.) action-learning workgroups, transparent policies for recruiting and promoting underrepresented minorities (URM) leadership, and a clear succession plan to nurture and elevate URM leaders. Suggestions are made to improve DEI in CTSA leadership and allow for greater representation in the translational science field.

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