Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Nat Rev Genet ; 21(6): 377-384, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32251390

RESUMEN

Addressing Indigenous rights and interests in genetic resources has become increasingly challenging in an open science environment that promotes unrestricted access to genomic data. Although Indigenous experiences with genetic research have been shaped by a series of negative interactions, there is increasing recognition that equitable benefits can only be realized through greater participation of Indigenous communities. Issues of trust, accountability and equity underpin Indigenous critiques of genetic research and the sharing of genomic data. This Perspectives article highlights identified issues for Indigenous communities around the sharing of genomic data and suggests principles and actions that genomic researchers can adopt to recognize community rights and interests in data.


Asunto(s)
Privacidad Genética/ética , Genómica/ética , Pueblos Indígenas/genética , Difusión de la Información/ética , Acceso a la Información , Investigación Genética/ética , Genoma Humano/genética , Derechos Humanos , Humanos
2.
Anesth Analg ; 2024 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-38768071

RESUMEN

INTRODUCTION: Women continue to be underrepresented in academic anesthesiology. This study assessed guidelines in anesthesia journals over the past 5 years, evaluating differences in woman-led versus man-led guidelines in terms of author gender, quality, and changes over time. We hypothesized that anesthesia guidelines would be predominately man-led, and that there would be differences in quality between woman-led versus man-led guidelines. METHODS: All clinical practice guidelines published in the top 10 anesthesia journals were identified as per Clarivate Analytics Impact Factor between 2016 and 2020. Fifty-one guidelines were included for author, gender, and quality analysis using the Appraisal of Guidelines for Research & Evaluation (AGREE) II instrument. Each guideline was assessed across 6 domains and 23 items and given an overall score, overall quality score, and overall rating/recommendation. Stratified and trend analyses were performed for woman-led versus man-led guidelines. RESULTS: Fifty out of 51 guidelines were included: 1 was excluded due to unidentifiable first-author gender. In total, 255 of 1052 (24%) authors were women, and woman-led guidelines (woman-first author) represented 12 of 50 (24%) overall guidelines. Eighteen percent (9 of 50) of guidelines had all-male authors, and a majority (26 of 50, 52%) had less than one-third of female authors. The overall number and percentage of woman-led guidelines did not change over time. There was a significantly higher percentage of female authors in woman-led versus man-led guidelines, median 39% vs 20% (P = .012), as well as a significantly higher number of female coauthors in guidelines that were woman-led median 3.5 vs 1.0, P = .049. For quality, there was no significant difference in the overall rating or objective quality of woman- versus man-led guidelines. However, there was a significant increase in the overall rating of all the guidelines over time (P = .010), driven by the increase in overall rating among man-led guidelines, P = .002. The overall score of guidelines did not increase over time; however, they increased in man-led but not woman-led guidelines. There was no significant correlation between the percentage of female authors per guideline and either overall score or overall rating. CONCLUSIONS: There is a substantial disparity in the number of women leading and contributing to guidelines which has not improved over time. Woman-led guidelines included more women and a higher percentage of women. There was no difference in quality of guidelines by first-author gender or percentage of female authors. Further systematic and quota-driven sponsorship is needed to promote gender equity, diversity, and inclusion in anesthesia guidelines.

3.
J Community Psychol ; 52(1): 39-57, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37615226

RESUMEN

In this study, we examined how school policies and strategies (i.e., positive discipline, hardening strategies, and positive behavioral strategies) affect teacher relational factors and teacher reports of victimization and safety. Specifically, we examined the mediational roles of teacher support of student learning, maltreatment of students by teachers, and teachers' differential treatment of students in schools. Using a sample of 6643 pre-K-12th-grade teachers, path analysis results revealed that positive behavior strategies, hardening strategies, and positive discipline were indirectly associated with teacher victimization and sense of safety. Additionally, teachers' perceptions of other teachers maltreating students had the greatest contributions to their sense of safety and victimization by students. Positive discipline was directly and indirectly associated with teacher victimization and safety. Implications and directions for future studies are discussed.


Asunto(s)
Acoso Escolar , Víctimas de Crimen , Personal Docente , Humanos , Maestros , Instituciones Académicas , Acoso Escolar/prevención & control
4.
Artículo en Inglés | MEDLINE | ID: mdl-37804421

RESUMEN

Cognitive disengagement syndrome (CDS), previously referred to as sluggish cognitive tempo, is a set of symptoms characterized by excessive daydreaming, mental fogginess, and slowed behavior/thinking. Studies examining the association between CDS and academic functioning have reported mixed findings and have relied upon limited measures of CDS, broad ratings of academic impairment, and/or focused only on elementary-aged children. The current study examined the relationship between CDS and academic functioning in adolescents using a comprehensive, multi-informant, multi-method design. Participants were 302 adolescents (Mage = 13.17 years; 44.7% female; 81.8% White; 52% with ADHD) recruited in the fall of their 8th grade. Above and beyond ADHD inattentive symptoms, CDS symptoms were related to poorer homework performance, lower math fluency, and lower daily academic motivation across multiple informants, and teacher-reported CDS symptoms were related to lower grades. Findings were not moderated by ADHD diagnosis, suggesting that associations between CDS and academic outcomes do not differ for adolescents with and without ADHD. Findings demonstrate that CDS symptoms are uniquely associated with daily academic difficulties as well as global indices of academic performance. These findings have implications for assessing and monitoring CDS symptoms in interventions aiming to improve the academic functioning in adolescents with and without ADHD.

5.
Am J Community Psychol ; 71(1-2): 147-157, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36378576

RESUMEN

Racial disparities and a corresponding lack of trust have been documented within the criminal legal system. In response, criminal legal system actors have sought to strengthen the legitimacy of their agencies. However, legitimizing these agencies can be problematic. Some argue that the current criminal legal system continues the legacy of slavery and Jim Crow as Blacks are disproportionately policed and incarcerated. As a framework, procedural injustice can offer a unique backdrop and interrogate ways in which the criminal legal system engages in delegitimizing actions that provoke noncompliance and enable social control. Using a procedural injustice lens, this study examines how justice-involved Black adults experience mistreatment by justice system actors. Semistructured interviews were conducted with 84 Black adults in Newark and Cleveland. Study findings offer a comprehensive account of how participants experience procedural injustice as arrestees, defendants, and incarcerated persons. More specifically, participant narratives describe deliberately antagonistic, abusive, and dehumanizing treatment by justice-system agents-often depicted as racially motivated. Participant accounts also describe this mistreatment as occurring in a context of coercion and powerlessness and as being institutionally sanctioned. Implications for the preservation of racial hierarchies, research, practice, and community psychology are discussed.


Asunto(s)
Derecho Penal , Policia , Humanos , Adulto , Grupos Raciales , Confianza
6.
J Appl Res Intellect Disabil ; 36(2): 385-393, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36585748

RESUMEN

BACKGROUND: People with Down syndrome often present with balance deficits, which compromise safety during daily activity. While evidence shows that exercise can improve balance in the Down syndrome population, it is unclear if a telehealth method will elicit similar benefits. We aimed to examine the effects of a virtual exercise program on balance in adults with Down syndrome. METHODS: Eighteen low-active participants with Down syndrome completed a 12-week telehealth exercise program based on the Mann Method. Balance testing took place before and after the intervention, which included: TUG, MCTSIB, FICSIT-4, and FRT. This study was registered as a clinical trial on ClinicalTrials.gov, identifier: NCT04647851. RESULTS: Significant improvement was seen in the TUG (p = .043), FICSIT-4 (p = .019) and FRT (p = .019). All participants achieved maximum scores on the MCTSIB in pre- and post-testing. CONCLUSIONS: Balance in low-active adults with Down syndrome significantly improved following the telehealth exercise program, which we attribute to the tailored exercises that address visual/vestibular deficits and hip muscle weakness.


Asunto(s)
Síndrome de Down , Discapacidad Intelectual , Telemedicina , Adulto , Humanos , Ejercicio Físico , Terapia por Ejercicio/métodos , Equilibrio Postural/fisiología
7.
Annu Rev Genomics Hum Genet ; 20: 495-517, 2019 08 31.
Artículo en Inglés | MEDLINE | ID: mdl-30892943

RESUMEN

Indigenous scholars are leading initiatives to improve access to genetic and genomic research and health care based on their unique cultural contexts and within sovereign-based governance models created and accepted by their peoples. In the past, Indigenous peoples' engagement with genomicresearch was hampered by a lack of standardized guidelines and institutional partnerships, resulting in group harms. This article provides a comparative analysis of research guidelines from Canada, New Zealand, Australia, and the United States that pertain to Indigenous peoples. The goals of the analysis are to identify areas that need attention, support Indigenous-led governance, and promote the development of a model research policy framework for genomic research and health care that has international relevance for Indigenous peoples.


Asunto(s)
Genómica/ética , Grupos de Población/genética , Australia , Canadá , Genómica/legislación & jurisprudencia , Humanos , Nueva Zelanda , Guías de Práctica Clínica como Asunto , Estados Unidos
8.
J Res Adolesc ; 32(3): 847-862, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35818860

RESUMEN

Research has examined racial socialization practices within families of color, but less is known regarding what White parents teach their children about race and/or racism. To explore White racial socialization processes, we interviewed 30 White parents of White children ages 7-17 years living in the Midwest. Using thematic analysis, we identified 22 themes organized into four domains: Content of conversations, factors to consider in socialization, developmental differences, and White identity/privilege. A majority of parents reported conversations about current or historic racial events, while relatively few also reported speaking specifically about systemic racism and microaggressions. Parents viewed adolescents as better able to handle difficult topics than children. Findings contribute to theoretical frameworks and may inform the development of educational resources.


Asunto(s)
Racismo , Socialización , Adolescente , Niño , Comunicación , Humanos , Padres
9.
Violence Vict ; 37(3): 348-366, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35654486

RESUMEN

A growing literature on parental violence toward teachers has examined the prevalence of these incidents, yet there is considerable variation across studies. There is a need for a systematic and comprehensive review to assess the extent of parent-perpetrated violence toward teachers. Using a meta-analytic approach, we examined the prevalence of violence directed against teachers by parents and how these rates vary by reporting timeframe and type of violence. We identified 5,340 articles through our initial screening process, and our final analysis included 8 studies that met criteria for this meta-analysis. Our findings show that teachers are more likely to experience non-physical forms of violence as compared to physical violence and that rates are lower as the severity and intrusiveness of the violent act increases. Implications for research and practice are discussed.


Asunto(s)
Padres , Violencia , Agresión , Humanos , Abuso Físico , Prevalencia
10.
Aggress Behav ; 46(1): 116-126, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31628678

RESUMEN

School violence is a significant public health concern that occurs in many forms. Physical aggression can cause serious bodily injury and long-term negative effects, and both teachers and students experience significant rates of physical aggression. There are few studies examining teachers' experiences of physical aggression. Studies that go beyond prevalence are limited, and we know little about the triggers and consequences that surround these incidents. This qualitative investigation used an antecedent-behavior-consequence (A-B-C) framework to understand how incidents of physical aggression directed toward teachers unfold. The sample included 193 elementary and secondary teachers who completed an anonymous, online survey and described events leading up to and following their experiences with physical aggression. Using conventional content analysis, we identified common antecedents, such as breaking up fights, discipline, and directives, and common consequences, such as student removal, school staff involvement, positive outcomes, and inaction. Further analyses revealed seven common A-B-C patterns among physical aggression incidents that are highlighted and discussed. Utility of the A-B-C framework for teacher-directed violence is described, along with implications for research, practice, and policy. Exploring the context surrounding incidents of physical aggression directed against teachers provides useful information for violence prevention and interventions.


Asunto(s)
Agresión , Víctimas de Crimen , Humanos , Maestros/estadística & datos numéricos , Instituciones Académicas , Estudiantes
12.
Proc Natl Acad Sci U S A ; 112(44): 13514-9, 2015 Nov 03.
Artículo en Inglés | MEDLINE | ID: mdl-26483454

RESUMEN

Sulfuric acid (H2SO4), formed from oxidation of sulfur dioxide (SO2) emitted during fossil fuel combustion, is a major precursor of new airborne particles, which have well-documented detrimental effects on health, air quality, and climate. Another precursor is methanesulfonic acid (MSA), produced simultaneously with SO2 during the atmospheric oxidation of organosulfur compounds (OSCs), such as dimethyl sulfide. In the present work, a multidisciplinary approach is used to examine how contributions of H2SO4 and MSA to particle formation will change in a large coastal urban area as anthropogenic fossil fuel emissions of SO2 decline. The 3-dimensional University of California Irvine-California Institute of Technology airshed model is used to compare atmospheric concentrations of gas phase MSA, H2SO4, and SO2 under current emissions of fossil fuel-associated SO2 and a best-case futuristic scenario with zero fossil fuel sulfur emissions. Model additions include results from (i) quantum chemical calculations that clarify the previously uncertain gas phase mechanism of formation of MSA and (ii) a combination of published and experimental estimates of OSC emissions, such as those from marine, agricultural, and urban processes, which include pet waste and human breath. Results show that in the zero anthropogenic SO2 emissions case, particle formation potential from H2SO4 will drop by about two orders of magnitude compared with the current situation. However, particles will continue to be generated from the oxidation of natural and anthropogenic sources of OSCs, with contributions from MSA and H2SO4 of a similar order of magnitude. This could be particularly important in agricultural areas where there are significant sources of OSCs.


Asunto(s)
Contaminantes Atmosféricos/química , Material Particulado/química , Dióxido de Azufre/química , Azufre/química , Seguimiento de Parámetros Ecológicos/métodos , Seguimiento de Parámetros Ecológicos/tendencias , Monitoreo del Ambiente/métodos , Predicción , Combustibles Fósiles , Humanos , Mesilatos/química , Modelos Teóricos , Oxidación-Reducción , Tamaño de la Partícula , Ácidos Sulfúricos/química
13.
Artículo en Inglés | MEDLINE | ID: mdl-38967900

RESUMEN

Approximately 13.8 million U.S. households face food insecurity, which severely affects child development, with more than half of these households including children. Research links food insecurity to cognitive deficits and mental health challenges, highlighting the need for thorough understanding and intervention. Although existing studies have explored the association between food insecurity and internalizing symptomatology, less research has examined food insecurity in relation to attention-deficit/hyperactivity disorder (ADHD) symptoms. Further, no studies have explored the connection between food insecurity and cognitive disengagement syndrome (CDS) symptoms, closely related to ADHD symptoms. Despite extant research linking CDS to environmental factors, empirical attention to its potential association with food insecurity is notably lacking. Additionally, adolescents, almost twice as likely as younger children to experience household food insecurity, are likely more aware and respond differently to challenges during this developmental period. Accordingly, this study investigated the unique associations of parent-, teacher-, and youth self-reported ADHD dimensions and CDS symptoms in relation to parent-reported food insecurity in early adolescents (N = 136, ages 10-12). Controlling for age, sex, race, and medication use, no informant's ratings of ADHD symptom dimensions were uniquely related to food insecurity. In contrast, higher parent-, teacher-, and youth self-reported CDS symptoms were uniquely associated with greater food insecurity. This finding was robust to additional control of family income for teacher- and youth self-reported CDS symptoms. These findings highlight the complex link between food insecurity and mental health, suggest a connection with CDS symptoms, and stress the need to address food insecurity as a public health priority, especially in early adolescence.

14.
Artículo en Inglés | MEDLINE | ID: mdl-38976638

RESUMEN

OBJECTIVES: To determine the association of intraoperative pulmonary artery catheter (PAC) use with in-hospital outcomes in cardiac surgical patients. METHODS: MEDLINE, Embase, and Cochrane Library (Wiley) databases were screened for studies that compared cardiac surgical patients receiving intraoperative PAC with controls and reporting in-hospital mortality. Secondary outcomes included intensive care unit length of stay, cost of hospitalization, fluid volume administered, intubation time, inotropes use, acute kidney injury (AKI), stroke, myocardial infarction (MI), and infections. RESULTS: Seven studies (25 853 patients, 88.6% undergoing coronary artery bypass graft surgery) were included. In-hospital mortality was significantly increased with PAC use [odds ratio (OR) 1.57; 95% confidence interval (CI) 1.12-2.20, P = 0.04]; PAC use was also associated with greater intraoperative inotrope use (OR 2.61; 95% CI 1.54-4.41) and costs [standardized mean difference (SMD) = 0.20; 95% CI 0.16-0.23], longer intensive care unit stay (SMD = 0.29; 95% CI 0.25-0.33), and longer intubation time (SMD = 0.44; 95% CI 0.12-0.76). CONCLUSIONS: PAC use is associated with significantly increased odds of in-hospital mortality, but the amount and quality of the available evidence is limited. Prospective randomized trials testing the effect of PAC on the outcomes of cardiac surgical patients are urgently needed.

15.
Am Psychol ; 2024 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-38815064

RESUMEN

Aggression and violence against educators and school personnel have raised public health concerns that require attention from researchers, policymakers, and training providers in U.S. schools. School aggression and violence have negative effects on school personnel health and retention and on student achievement and development. In partnership with several national organizations, the American Psychological Association (APA) Task Force on Violence Against Educators and School Personnel administered two national, multi-informant, cross-sectional surveys. Time 1 data were collected in 2020-2021 from 14,966 respondents; participants reflected on their experiences of violence and aggression before COVID-19 and during COVID-19 restrictions in this survey. One year later, in 2022, 11,814 respondents completed the Time 2 survey after COVID-19 restrictions ended. Participants included teachers, school psychologists, social workers, counselors, staff members, and administrators from all 50 states and Puerto Rico. Rates of violence and aggression directed against educators by students, parents, colleagues, and administrators were substantial before COVID-19, were lower during COVID-19 restrictions, and returned to prepandemic levels or higher after COVID-19 restrictions. After COVID-19 restrictions, 22%-80% of respondents reported verbal or threatening aggression, and 2%-56% of respondents reported physical violence at least once during the year, varying by stakeholder role and aggressor. Rates of intentions to quit the profession ranged from 21% to 43% during COVID-19 restrictions (2020-2021) and from 23% to 57% after COVID-19 restrictions (2021-2022), varying by stakeholder role. Participants across roles reported substantial rates of anxiety and stress, especially during and after COVID-19 restrictions, and identified specific training needs. Implications for theory, research, training, and policy are presented. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

16.
Cancer Cell ; 42(1): 70-84.e8, 2024 01 08.
Artículo en Inglés | MEDLINE | ID: mdl-38194915

RESUMEN

Strategies are needed to better identify patients that will benefit from immunotherapy alone or who may require additional therapies like chemotherapy or radiotherapy to overcome resistance. Here we employ single-cell transcriptomics and spatial proteomics to profile triple negative breast cancer biopsies taken at baseline, after one cycle of pembrolizumab, and after a second cycle of pembrolizumab given with radiotherapy. Non-responders lack immune infiltrate before and after therapy and exhibit minimal therapy-induced immune changes. Responding tumors form two groups that are distinguishable by a classifier prior to therapy, with one showing high major histocompatibility complex expression, evidence of tertiary lymphoid structures, and displaying anti-tumor immunity before treatment. The other responder group resembles non-responders at baseline and mounts a maximal immune response, characterized by cytotoxic T cell and antigen presenting myeloid cell interactions, only after combination therapy, which is mirrored in a murine model of triple negative breast cancer.


Asunto(s)
Neoplasias de la Mama Triple Negativas , Humanos , Animales , Ratones , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias de la Mama Triple Negativas/genética , Neoplasias de la Mama Triple Negativas/radioterapia , Anticuerpos Monoclonales Humanizados/uso terapéutico , Terapia Combinada , Inmunoterapia
17.
Am J Community Psychol ; 51(3-4): 407-21, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23229395

RESUMEN

We use longitudinal multilevel modeling to test how exposure to community violence and cognitive and behavioral factors contribute to the development of aggressive and prosocial behaviors. Specifically, we examine predictors of self-, peer-, and teacher-reported aggressive and prosocial behavior among 266 urban, African American early adolescents. We examine lagged, within-person, between-person, and protective effects across 2 years. In general, results suggest that higher levels of violence exposure and aggressive beliefs are associated with more aggressive and less prosocial peer-reported behavior, whereas greater self-efficacy to resolve conflict peacefully is associated with less aggression across reporters and more teacher-reported prosocial behavior. Greater knowledge and violence prevention skills are associated with fewer aggressive and more prosocial teacher-reported behaviors. Results also suggest that greater self-efficacy and lower impulsivity have protective effects for youth reporting higher levels of exposure to community violence, in terms of teacher-reported aggressive behavior and peer-reported prosocial behavior. Differences among reporters and models are discussed, as well as implications for intervention.


Asunto(s)
Conducta del Adolescente , Agresión , Negro o Afroamericano/psicología , Conducta Infantil , Cognición , Relaciones Interpersonales , Población Urbana , Violencia , Adolescente , Análisis de Varianza , Chicago , Niño , Femenino , Predicción , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Autoevaluación (Psicología) , Encuestas y Cuestionarios
18.
Sch Psychol ; 2023 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-37902701

RESUMEN

School personnel safety and well-being have received increased attention via national outlets; however, research is limited. The current investigation is the first to examine the reported use and perceived effectiveness of commonly used school-based intervention approaches for addressing school violence, specifically violence against teachers in U.S. schools. A sample of 4,471 prekindergarten-12th grade teachers was asked to rate the use and perceived effectiveness of common school-based approaches, namely exclusionary discipline (e.g., suspensions), school hardening (e.g., metal detectors, school police), prevention (e.g., school climate improvement, social-emotional learning, classroom management), and crisis intervention practices (e.g., de-escalation, physical restraint) to address verbal/threatening, physical, and property violence against teachers. Findings revealed that teachers rated prevention practices as most effective in reducing violence against teachers. The use of exclusionary discipline and crisis intervention practices at school was positively associated with all three forms of violence. Ratings of the effectiveness of specific practices were associated with lower likelihoods of verbal/threatening (i.e., hardening, prevention), physical (i.e., exclusionary discipline, hardening, prevention), and property (i.e., hardening) violence. Implications for school practice, research, and policy are presented. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

19.
Sch Psychol ; 2023 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-37498715

RESUMEN

Violence against teachers is a public health crisis that has devastating effects on school personnel well-being, health, and retention, as well as students' educational outcomes. In collaboration with national organizations, the American Psychological Association Task Force on Violence against Educators conducted the first national survey on educator victimization that included 4,136 pre-K through 12th-grade teachers from all 50 U.S. states and Puerto Rico during the pandemic. In the current study, 43.7% of teachers reported experiencing at least one verbal threat, physical assault, and/or property damage, with verbal threats being the most prevalent form of victimization during the pandemic. Using a social-ecological framework and logistic regression analyses, characteristics of teachers, school climate, and school organizational and community factors were examined as predictors of teacher victimization (i.e., verbal threats, physical, property violence) during the pandemic. Findings revealed that teacher role (i.e., special educators), negative and positive dimensions of school climate, as well as school organizational and community factors (i.e., percent of students receiving free and reduced lunch, instructional modality, school level, and urbanicity) significantly predicted greater teacher victimization. While findings revealed that in-person instruction significantly predicted teacher violence across aggressors, teacher victimization was reported across instructional modality (in-person, hybrid, remote). Results offer insights into possible contextual antecedents to teacher victimization, sense of safety, and well-being in schools. Implications for research and school practice are presented. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

20.
iScience ; 26(11): 108220, 2023 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-37965156

RESUMEN

The mouse olfactory system regenerates constantly throughout life. While genes critical for the initial projection of olfactory sensory neurons (OSNs) to the olfactory bulb have been identified, what genes are important for maintaining the olfactory map during regeneration are still unknown. Here we show a mutation in Protocadherin 19 (Pcdh19), a cell adhesion molecule and member of the cadherin superfamily, leads to defects in OSN coalescence during regeneration. Surprisingly, lateral glomeruli were more affected and males in particular showed a more severe phenotype. Single cell analysis unexpectedly showed OSNs expressing the MOR28 odorant receptor could be subdivided into two major clusters. We showed that at least one protocadherin is differentially expressed between OSNs coalescing on the medial and lateral glomeruli. Moreover, females expressed a slightly different complement of genes from males. These features may explain the differential effects of mutating Pcdh19 on medial and lateral glomeruli in males and females.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA