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1.
Clin Obstet Gynecol ; 66(1): 73-85, 2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36044632

RESUMEN

There are over 150,000 incarcerated females in the United States. Structural inequities, including racism, adversely affect the reproductive health outcomes, autonomy, and access to care that people in custody face. This article reviews the status of reproductive health and health care among incarcerated women and describes ways that community OB/GYNs can address health inequities by providing comprehensive, compassionate care to incarcerated people, especially when they come to community settings for care while they are in custody. To address reproductive health disparities and inequities that adversely affect incarcerated individuals, community providers can implement these recommendations and also engage in advocacy.


Asunto(s)
Equidad en Salud , Prisioneros , Femenino , Humanos , Estados Unidos , Salud Reproductiva , Atención a la Salud , Disparidades en el Estado de Salud
2.
Aust N Z J Psychiatry ; 56(6): 695-708, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34231423

RESUMEN

OBJECTIVE: This study aimed to evaluate whether the Therapist-assisted Online Parenting Strategies programme increased parenting behaviours known to be supportive of adolescents experiencing anxiety and/or depression. Secondary parenting outcomes of parental self-efficacy, parental accommodation, carer burden, parent-adolescent attachment, family functioning and parent distress were also examined, along with adolescent outcomes of anxiety and depression symptoms, suicidal ideation and sleep. METHOD: Seventy-one parents (94.4% females) and their adolescents (73.2% females) aged 12-18 years (Mean = 15.02, SD = 1.56) being treated for depression and/or anxiety in Australia were recruited into a single-arm double-baseline open-label trial. Parents received Therapist-assisted Online Parenting Strategies, which comprised up to nine web-based modules each supplemented with coaching sessions via videoconferencing. Outcomes were analysed using latent growth curve modelling to determine if changes to outcomes at post-intervention (4 month post-second baseline) exceeded changes between two baselines measured 1 month apart. RESULTS: Sixty-five parents (91.6%) completed at least one module of the online parenting intervention and on average received nine coaching sessions (SD = 2). Parenting behaviours targeted by Therapist-assisted Online Parenting Strategies improved at post-intervention (Cohen's d = 1.16, 95% confidence interval [0.78, 1.51]). Parent-reported parental self-efficacy and parent-adolescent attachment increased (Cohen's d = 1.44 [1.05, 1.82] and 0.39 [0.05, 0.74], respectively), while impairments to family functioning and parent distress decreased (Cohen's d = -0.51 [-0.86, -0.16] and -0.84 [-1.23, -0.44], respectively). Changes to adolescent anxiety, depression and sleep were not significant. CONCLUSION: The Therapist-assisted Online Parenting Strategies intervention improved self-reported parenting behaviours, parental self-efficacy, parent levels of distress, parent-adolescent attachment, and family functioning in parents with adolescents being treated for anxiety and/or depression. However, significant changes in adolescent mental health and sleep outcomes at post-intervention were not observed. The usefulness of a therapist-supported online parenting programme in addressing a service gap for parents seeking professional help is indicated. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry Number (ACTRN) 12618000290291, prospectively registered on 26 February 2018; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=368031.


Asunto(s)
Depresión , Responsabilidad Parental , Adolescente , Ansiedad/psicología , Ansiedad/terapia , Australia , Niño , Depresión/psicología , Depresión/terapia , Femenino , Humanos , Masculino , Responsabilidad Parental/psicología , Padres/psicología
3.
Comput Inform Nurs ; 39(2): 89-96, 2020 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-33538513

RESUMEN

Social media use related to chronic disease has become pervasive, yet little research has been done to examine how social media is currently used by healthcare consumers or how to best use various social media platforms to improve health outcomes. The purpose of this study was to gain an understanding of Instagram use for image sharing related to #rheumatoidarthritis. A visual ethnography approach using content analysis was completed. Images for analysis (n = 106) were randomly selected, using the Instagram public search feature, during seven distinct periods. Content analysis, conducted by two coders, was used to identify categories and provide a sentiment analysis of the images. Approximately 75% of the images were determined to be positive by both coders. Social interaction and self-expression were the most frequently identified categories, suggesting that individuals use Instagram primarily for sharing awareness, sharing encouragement, and self-expression regarding rheumatoid arthritis. This finding is consistent with the use of Instagram for social networking and self-promotion. This study reveals new insights about how Instagram serves as a social, personal, and health-related information sharing platform particularly for those who may be socially isolated due to rheumatoid arthritis.


Asunto(s)
Artritis Reumatoide/psicología , Difusión de la Información , Fotograbar , Medios de Comunicación Sociales , Antropología Cultural , Estilo de Vida Saludable , Humanos , Interacción Social , Red Social
4.
Nurs Educ Perspect ; 37(2): 97-100, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27209868

RESUMEN

The purpose of this project was to revise the curriculum at a diploma school of nursing to meet the call issued by QSEN. Course objectives were revised and principles of quality and safety were threaded throughout the curriculum with classroom, clinical, and simulation strategies. Students and faculty completed the Healthcare Professionals Patient Safety Assessment Curriculum Survey, and preceptors were surveyed regarding students' ability to meet QSEN competencies. No difference was found post-implementation, but statistically significant differences were found between students and faculty and between students at the start of the nursing program and one year later.


Asunto(s)
Educación Basada en Competencias/normas , Curriculum , Bachillerato en Enfermería/normas , Administración de la Seguridad/normas , Femenino , Humanos , Masculino , Investigación en Educación de Enfermería , Pennsylvania , Encuestas y Cuestionarios
5.
J Health Commun ; 20(6): 627-38, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25909233

RESUMEN

This research extends the growing literature about online alcohol prevention programs for first-year college students. Two independent randomized control studies, conducted at separate universities, evaluated the short-term effectiveness of Alcohol-Wise, an online alcohol prevention program not previously studied. It was hypothesized the prevention program would increase alcohol knowledge and reduce alcohol consumption, including high-risk alcohol-related behaviors, among first-year college students. At both universities, the intervention significantly increased alcohol-related knowledge. At one university, the prevention program also significantly reduced alcohol consumption and high-risk drinking behaviors, such as playing drinking games, heavy drinking, and extreme ritualistic alcohol consumption. Implications for the use of online alcohol prevention programs and student affairs are discussed.


Asunto(s)
Consumo de Bebidas Alcohólicas/prevención & control , Consumo de Bebidas Alcohólicas/psicología , Educación en Salud/métodos , Conocimientos, Actitudes y Práctica en Salud , Internet , Estudiantes/psicología , Universidades/estadística & datos numéricos , Adolescente , Femenino , Estudios de Seguimiento , Humanos , Masculino , New York , Philadelphia , Evaluación de Programas y Proyectos de Salud , Asunción de Riesgos , Estudiantes/estadística & datos numéricos
6.
J Am Soc Nephrol ; 24(3): 377-84, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23274426

RESUMEN

Renal microangiopathies and membranoproliferative GN (MPGN) can manifest similar clinical presentations and histology, suggesting the possibility of a common underlying mechanism in some cases. Here, we performed homozygosity mapping and whole exome sequencing in a Turkish consanguineous family and identified DGKE gene variants as the cause of a membranoproliferative-like glomerular microangiopathy. Furthermore, we identified two additional DGKE variants in a cohort of 142 unrelated patients diagnosed with membranoproliferative GN. This gene encodes the diacylglycerol kinase DGKε, which is an intracellular lipid kinase that phosphorylates diacylglycerol to phosphatidic acid. Immunofluorescence confocal microscopy demonstrated that mouse and rat Dgkε colocalizes with the podocyte marker WT1 but not with the endothelial marker CD31. Patch-clamp experiments in human embryonic kidney (HEK293) cells showed that DGKε variants affect the intracellular concentration of diacylglycerol. Taken together, these results not only identify a genetic cause of a glomerular microangiopathy but also suggest that the phosphatidylinositol cycle, which requires DGKE, is critical to the normal function of podocytes.


Asunto(s)
Diacilglicerol Quinasa/genética , Glomerulonefritis Membranoproliferativa/enzimología , Glomerulonefritis Membranoproliferativa/genética , Enfermedades Renales/enzimología , Enfermedades Renales/genética , Mutación , Secuencia de Aminoácidos , Animales , Secuencia de Bases , Estudios de Cohortes , Consanguinidad , ADN/genética , Diacilglicerol Quinasa/metabolismo , Diagnóstico Diferencial , Diglicéridos/metabolismo , Femenino , Variación Genética , Glomerulonefritis Membranoproliferativa/patología , Células HEK293 , Humanos , Enfermedades Renales/patología , Glomérulos Renales/enzimología , Masculino , Ratones , Datos de Secuencia Molecular , Linaje , Podocitos/metabolismo , Polimorfismo de Nucleótido Simple , Ratas , Homología de Secuencia de Aminoácido , Turquía
7.
J Am Assoc Nurse Pract ; 36(1): 29-37, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37678232

RESUMEN

BACKGROUND: During a program review, faculty identified that nurse practitioner (NP) students who received a C grade in Advanced Pathophysiology (Patho) and Advanced Pharmacology (Pharm) appeared to perform poorly in the later NP management courses and on other program outcomes. PURPOSE: The research aimed to determine whether grades in graduate Patho and Pharm courses could predict performance in NP management courses, program progression and completion, and certification pass rates. METHODOLOGY: This research included deidentified student data from 2016 to 2018 across seven NP specialty tracks ( n = 4,575). Nonparametric and parametric tests were used in the analysis. RESULTS: A significant correlation ( p < .001) existed between Patho and Pharm grades. Lower grades in these two courses were significantly related to each other and to lower management course grades. Logistic regression showed that graduate pathophysiology grades significantly predicted certification examination performance, with lower grades associated with lower certification examination performance. Graduate pharmacology grades, pathophysiology grades, composite management course grades, and admission grade point average (GPA) significantly predicted final cumulative GPA, with lower grades associated with lower performance for all variables. CONCLUSIONS: Results of this research support the hypothesis that grades of C in Patho or Pharm courses significantly predict C performance in the management NP courses and lower certification success rates. IMPLICATIONS: The project model can be used in future research. Study findings can be helpful to NP faculty when considering curriculum decisions.


Asunto(s)
Enfermeras Practicantes , Estudiantes , Humanos , Curriculum , Modelos Logísticos , Enfermeras Practicantes/educación , Evaluación Educacional
8.
Psychol Public Policy Law ; 19(3): 380-394, 2013 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-24078780

RESUMEN

Despite minimum drinking age laws, underage college students engage in high levels of risky drinking and reach peak lifetime levels of alcohol dependence. A group of presidents of universities and colleges has argued that these laws promote disrespect for laws in general, and do not prevent drinking or related negative consequences. However, no study has investigated the policy-relevant question of whether students who endorse a personal responsibility to obey drinking laws, regardless of their opinions about the laws, are less likely to drink or to experience negative consequences. Therefore, we compared endorsers to non-endorsers, controlling for race, gender, and baseline outcomes, at two universities (Ns = 2007 and 2027). Neither sample yielded a majority (49% and 38% endorsement), but for both universities, all 17 outcome measures were significantly associated with endorsement across all types of analyses. Endorsers were less likely to drink, drank less, engaged in less high-risk behavior (e.g., heavy/binge drinking), and experienced fewer harms (e.g., physical injury), even when controlling for covariates. Racial/ethnic minority groups were more likely to endorse, compared to White students. By isolating a small window of time between high school and college that produces large changes in drinking behavior, and controlling for covariates, we can begin to hone in on factors that might explain relations among laws, risky behaviors, and harms. Internalization of a social norm to adhere to drinking laws could offer benefits to students and society, but subsequent research is needed to pin down causation and causal mechanisms.

9.
Nurs Educ Perspect ; 32(4): 256-8, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21923007

RESUMEN

A simulation clinical learning experience was initiated by a diploma school of nursing at a multidisciplinary training and research facility for simulation-based education. The simulation focused on pediatric and obstetrical scenarios. The purpose of this study was to investigate the impact simulation laboratory experiences have on critical thinking, student satisfaction, self-confidence, and cognitive learning. With 63 students participating over four semesters, a positive response was found for satisfaction and self-confidence in learning; there was also a significant increase in cognitive knowledge. No definitive conclusion regarding critical thinking was established, but a discovery was made regarding the importance of process during the simulation.


Asunto(s)
Programas de Graduación en Enfermería/métodos , Maniquíes , Enfermería Obstétrica/educación , Enfermería Pediátrica/educación , Adulto , Evaluación Educacional , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Recién Nacido , Embarazo , Evaluación de Programas y Proyectos de Salud , Autoeficacia
10.
J Contin Educ Nurs ; 52(2): 79-84, 2021 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-33497457

RESUMEN

Our health care system hired 105 newly graduated nurses during a 12-month period. The challenge of how to integrate and subsequently retain this large volume of nurses within a relatively short time frame was apparent. Therefore, the position of education navigator was created. The education navigator mirrors the traditional nurse navigator by expediting the transition of newly graduated nurses from novice to competent nurses via the roles of educator, facilitator, and clinician. When nurses have mentors and leaders they can trust and rely on for support and guidance, an organizational culture is created where performance is optimized, and staff are retained. The supportive culture influences the work environment, clinical practice, and education. As educators, it is imperative we act as mentors to our new nurses not only to retain them but to help them grow professionally. The education navigator role provides newly graduated nurses with a support system that leads to increased retention and professional development. [J Contin Educ Nurs. 2021;52(2):79-84.].


Asunto(s)
Internado y Residencia , Humanos , Mentores , Cultura Organizacional , Selección de Personal , Lugar de Trabajo
11.
J Interpers Violence ; 36(17-18): NP9908-NP9929, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-31303102

RESUMEN

This study examined the associations between schema modes and aggression in 59 male forensic psychiatric inpatients. Two instruments were used to assess schema modes: One measured modes through self-report, the Schema Mode Inventory (SMI), and one measured modes via observer (nurse) judgments, the Mode Observation Scale (MOS). Aggression was measured in two ways: Self-reported aggression during participants' lifetimes was assessed using the Life History of Aggression-Self-Report-Aggression Scale (LHA-S-A), and incidents of aggression during hospitalization in the month following schema mode assessment, were identified through review of medical records. Self-reported (SMI) and observer-reported (MOS) measures of schema modes were poorly related and produced disparate associations with aggression. As hypothesized, the observer-reported MOS Angry-Child and MOS Impulsive-Undisciplined-Child modes were significantly associated with aggression during the follow-up. A number of other schema modes (MOS-Healthy-Adult, SMI-Angry-Child, MOS-Complaining-Protector, SMI-Undisciplined-Child, and MOS-Angry-Protector) were unexpectedly associated with aggression.


Asunto(s)
Agresión , Conducta Impulsiva , Adulto , Ira , Humanos , Masculino
12.
MCN Am J Matern Child Nurs ; 46(4): 211-216, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33973889

RESUMEN

PURPOSE: To improve outcomes of infants with neonatal abstinence syndrome (NAS) by implementing an evidence-based approach to care. METHODS: An interdisciplinary team developed and implemented an educational module about the elements and principles of trauma-informed care (TIC) and standardized education on NAS for mothers with substance use disorder (SUD). The team collaborated with community behavioral health professionals to secure the services of a certified recovery specialist. Primary outcome measures of average length of stay (LOS) and admissions to special care nursery (SCN) for NAS infants were analyzed. RESULTS: Following health care team education on TIC and implementation of the standardized NAS brochure, average LOS decreased significantly from 6.5 to 5.1 days from baseline period (January-December 2019) to the implementation period (February-June 2020; p = 0.03). There was no difference in SCN admission from the baseline period (February-June 2019) to the implementation period (February-June 2020). Referrals to certified recovery specialists did not change. CLINICAL IMPLICATIONS: Education on the impact of trauma on new mothers with SUD can promote collaboration between them and the neonatal team. Standardizing education for new mothers of infants with NAS can help to engage families of infants with NAS and improve clinical outcomes.


Asunto(s)
Tiempo de Internación/estadística & datos numéricos , Madres/psicología , Síndrome de Abstinencia Neonatal/enfermería , Enfermería Neonatal , Trastornos Relacionados con Sustancias , Actitud del Personal de Salud , Enfermería Basada en la Evidencia , Práctica Clínica Basada en la Evidencia , Femenino , Humanos , Lactante , Recién Nacido , Unidades de Cuidado Intensivo Neonatal
13.
Med Educ Online ; 25(1): 1827532, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33012265

RESUMEN

BACKGROUND: Resident continuity clinics (RCCs), where residents see patients largely independently, is a common requirement for residency programs in the USA. Students often participate in these clinics but it is unknown how this effects resident learning or student satisfaction. OBJECTIVE: This study aims to describe effects on the learning environment when students and residents work together in an RCC. DESIGN: Separate surveys were administered to residents and students working at St. Joseph Mercy Hospital (SJMH) in Ann Arbor, Michigan, from 2016-2018. RESULTS: Response rates were 79/116 (68.1%) for students and 21/24 (87.5%) for residents. A one-sample Wilcoxon signed rank test was used to test whether most five-level Likert-type scale responses were 'agree' or 'strongly agree.' Of medical students, 88.6% enjoyed working with residents (p < 0.001) with 60.8% indicating residents were effective teachers (p < 0.001). The majority of residents (85.7%) were neutral, agreed, or strongly agreed that they enjoyed working with students (p < 0.001). However, 61.9% of residents believed they were too busy to be effective teachers (p < 0.001). CONCLUSIONS: Both residents and students positively viewed their interactions in RCCs. Although most students felt residents were effective teachers, most residents worried about their ability to balance clinical care and teaching responsibilities.


Asunto(s)
Internado y Residencia , Relaciones Interprofesionales , Estudiantes de Medicina , Adulto , Femenino , Humanos , Aprendizaje , Masculino , Michigan , Satisfacción Personal , Encuestas y Cuestionarios
14.
Radiat Res ; 194(2): 162-172, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32845987

RESUMEN

Thrombocytopenia (TCP) may cause severe and life-threatening bleeding. While this may be prevented by platelet transfusions, transfusions are associated with potential complications, do not always work (platelet refractory) and are not always available. There is an urgent need for a synthetic alternative. We evaluated the ability of fibrinogen-coated nanospheres (FCNs) to prevent TCP-related bleeding. FCNs are made of human albumin polymerized into a 100-nm sphere and coated with fibrinogen. We hypothesized that FCNs would bind to platelets through fibrinogen-GPIIb/IIIa interactions, contributing to hemostasis in the setting of TCP. We used two murine models to test these effects: in the first model, BALB/c mice received 7.25 Gy total-body irradiation (TBI); in the second model, lower dose TBI (7.0 Gy) was combined with an anti-platelet antibody (anti-CD41) to induce severe TCP. Deaths in both models were due to gastrointestinal or intracranial bleeding. Addition of antiplatelet antibody to 7.0 Gy TBI significantly worsened TCP and increased mortality compared to 7.0 Gy TBI alone. FCNs significantly improved survival compared to saline control in both models, suggesting it ameliorated TCP-related bleeding. Additionally, in a saphenous vein bleeding model of antibody-induced TCP, FCNs shortened bleeding times. There were no clinical or histological findings of thrombosis or laboratory findings of disseminated intravascular coagulation after FCN treatment. In support of safety, fluorescence microscopy suggests that FCNs bind to platelets only upon platelet activation with collagen, limiting activity to areas of endothelial damage. To our knowledge, this is the first biosynthetic agent to demonstrate a survival advantage in TCP-related bleeding.


Asunto(s)
Albúminas/química , Fibrinógeno/química , Fibrinógeno/farmacología , Hemorragia/complicaciones , Hemorragia/prevención & control , Nanosferas , Trombocitopenia/complicaciones , Animales , Endotelio/metabolismo , Fibrinógeno/metabolismo , Hemorragia/metabolismo , Hemorragia/fisiopatología , Ratones , Agregación Plaquetaria/efectos de los fármacos , Análisis de Supervivencia
15.
J Am Coll Health ; 57(4): 445-54, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19114384

RESUMEN

OBJECTIVE: The authors assessed short-term effectiveness of a Web-based alcohol education program on entering freshmen. PARTICIPANTS: 3,216 incoming first-year students were randomized to a control or intervention group. METHODS: Controls completed a survey and knowledge test the summer before college; 4 to 6 weeks after arrival on campus, they completed a follow-up survey of behaviors and harms followed by an invitation to complete the online course. Intervention students completed the precourse survey and test, the online course, and final exam prior to coming to campus. This was followed by a survey 4 to 6 weeks after arrival on campus. RESULTS: Although the intervention group showed significantly higher alcohol-related postcourse knowledge compared to the control group, protective behavior, risk-related behavior, high-risk drinking, and alcohol-related harm did not favor the intervention group, with the sole exception of playing drinking games. CONCLUSIONS: Alcohol knowledge alone was insufficient to mitigate alcohol-related high-risk behaviors in this student population.


Asunto(s)
Consumo de Bebidas Alcohólicas/prevención & control , Instrucción por Computador/métodos , Educación en Salud/métodos , Internet , Estudiantes/psicología , Adolescente , Consumo de Bebidas Alcohólicas/psicología , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Estudios Prospectivos , Servicios de Salud Escolar , Universidades , Adulto Joven
16.
Mol Pharmacol ; 72(6): 1557-66, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17895407

RESUMEN

The CB1 cannabinoid receptor is a G-protein coupled receptor that has important physiological roles in synaptic plasticity, analgesia, appetite, and neuroprotection. We report the discovery of two structurally related CB1 cannabinoid receptor interacting proteins (CRIP1a and CRIP1b) that bind to the distal C-terminal tail of CB1. CRIP1a and CRIP1b are generated by alternative splicing of a gene located on chromosome 2 in humans, and orthologs of CRIP1a occur throughout the vertebrates, whereas CRIP1b seems to be unique to primates. CRIP1a coimmunoprecipitates with CB1 receptors derived from rat brain homogenates, indicating that CRIP1a and CB1 interact in vivo. Furthermore, in superior cervical ganglion neurons coinjected with CB1 and CRIP1a or CRIP1b cDNA, CRIP1a, but not CRIP1b, suppresses CB1-mediated tonic inhibition of voltage-gated Ca2+ channels. Discovery of CRIP1a provides the basis for a new avenue of research on mechanisms of CB1 regulation in the nervous system and may lead to development of novel drugs to treat disorders where modulation of CB1 activity has therapeutic potential (e.g., chronic pain, obesity, and epilepsy).


Asunto(s)
Proteínas Portadoras/fisiología , Receptor Cannabinoide CB1/metabolismo , Receptores de Cannabinoides/fisiología , Secuencia de Aminoácidos , Animales , Cannabinoides/metabolismo , Cannabinoides/farmacología , Proteínas Portadoras/genética , Línea Celular , Humanos , Proteínas con Dominio LIM , Proteínas de la Membrana , Ratones , Datos de Secuencia Molecular , Unión Proteica/fisiología , Ratas , Receptor Cannabinoide CB1/genética , Receptores de Cannabinoides/metabolismo
17.
Microbes Infect ; 9(10): 1196-207, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17764998

RESUMEN

The PrfA protein, a member of the Crp/Cap-Fnr family of bacterial transcription factors, controls the expression of key virulence determinants of the facultative intracellular pathogen Listeria monocytogenes. Each of the steps of the listerial intracellular infection cycle-host cell invasion, phagosomal escape, cytosolic replication, and direct cell-to-cell spread-is mediated by products of the PrfA regulon. Only 10 of the 2853 genes of the L. monocytogenes EGDe genome have been confirmed as bona fide (directly regulated) members of this regulon, a number surprisingly small given the apparent complexity of listerial intracellular parasitism. PrfA activates transcription by binding as a dimer to a palindromic promoter element of canonical sequence tTAACanntGTtAa, with seven invariant nucleotides (in capitals) and a two-mismatch tolerance. PrfA integrates a number of environmental and bacteria-derived signals to ensure the correct spatio-temporal and niche-adapted expression of the regulon, with maximum induction in the host cell cytosol and repression in the environmental habitat. Regulation operates through changes in PrfA activity-presumably by cofactor-mediated allosteric shift-and concentration, and involves transcriptional, translational and post-translational control mechanisms. There is evidence that PrfA exerts a more global influence on L. monocytogenes physiology via indirect mechanisms.


Asunto(s)
Listeria monocytogenes/genética , Listeriosis/microbiología , Factores de Terminación de Péptidos/genética , Secuencia de Aminoácidos , Animales , Humanos , Listeria monocytogenes/patogenicidad , Modelos Moleculares , Datos de Secuencia Molecular , Factores de Terminación de Péptidos/química , Factores de Terminación de Péptidos/fisiología , Regulón/genética , Virulencia/genética
19.
Exp Toxicol Pathol ; 58(5): 311-22, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17261363

RESUMEN

In hemolytic disorders, such as sickle cell disease and beta-thalassemia, the mechanisms of thrombosis are poorly understood. Appropriate animal models would increase the understanding of the pathophysiology of thrombosis. We previously reported that rats exposed to 2-butoxyethanol (2-BE) developed hemolytic anemia and disseminated thrombosis resembling sickle cell disease and beta-thalassemia. To characterize our model further, we investigated age- and dose-related differences in sensitivity to 2-BE. We exposed groups of 6- and 12-week-old F344 rats (5 animals/group) to 62.5, 125, and 250 mg/kg/day of 2-BE for up to 4 days. Blood was collected on days 2-4 for complete blood count and measurement of intracellular adhesion molecule-1 (ICAM-1). Histopathological evaluation was performed to find evidence of disseminated thrombosis. The maximum hemolytic response, resulting in decreased erythrocyte count and higher mean cell volume (MCV) occurred in the 12-week-old rats treated with the highest dose of 2-BE (250 mg/kg, p<0.0001). The highest increase in ICAM-1 levels occurred in the 12-week-old rats treated with 125 and 250 mg/kg 2-BE (p<0.0001). No intravascular thrombi were noted in the 6-week-old 2-BE-treated animals. The majority of intravascular thrombi occurred in the 12-week-old rats treated with 250 mg/kg 2-BE. Because our findings show age- and dose-related sensitivities, we suggest that 12-week-old rats and doses of 250 mg/kg be used in the 2-BE model.


Asunto(s)
Envejecimiento/sangre , Anemia Hemolítica/inducido químicamente , Modelos Animales de Enfermedad , Coagulación Intravascular Diseminada/inducido químicamente , Glicoles de Etileno/farmacología , Trombosis/inducido químicamente , Anemia Hemolítica/sangre , Animales , Coagulación Intravascular Diseminada/sangre , Relación Dosis-Respuesta a Droga , Recuento de Eritrocitos , Índices de Eritrocitos , Eritrocitos/citología , Eritrocitos/efectos de los fármacos , Molécula 1 de Adhesión Intercelular/metabolismo , Ratas , Ratas Endogámicas F344 , Trombosis/sangre
20.
Int J Palliat Nurs ; 13(5): 230-6, 2007 May.
Artículo en Inglés | MEDLINE | ID: mdl-17577175

RESUMEN

The community clinical nurse specialist (CNS) team provides specialist palliative care to clients with cancer and non-malignant, life-limiting diseases in clients' homes, community hospitals, and residential and nursing homes. CNSs are based in health centres, community hospitals (geographically spread around the county) or at the local hospice. There has been no systematic review of patient and carer levels of satisfaction since the conception of the CNS service in 1984. Accredited as a nursing development unit (Flint and Wright, 2001) by Leeds University, the team has been encouraged to obtain service users' views. National guidelines in the UK (National Institute for Health and Clinical Excellence (NICE), 2004) also recommend that systems be put in place to enable clients to make their voices heard in a variety of ways. The principle aim was to identify the level of patient and carer satisfaction and to highlight aspects of care that warranted alteration or improvement. The CNS team were also keen to identify the aspects of their role most helpful to patients and carers, enabling CNSs to spend their time in a way that is most beneficial to clients.


Asunto(s)
Actitud Frente a la Salud , Cuidadores/psicología , Enfermería en Salud Comunitaria/organización & administración , Familia/psicología , Enfermeras Clínicas/organización & administración , Cuidados Paliativos/organización & administración , Anciano , Comunicación , Estudios Transversales , Técnica Delphi , Inglaterra , Femenino , Investigación sobre Servicios de Salud , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Necesidades , Rol de la Enfermera , Auditoría de Enfermería , Investigación en Evaluación de Enfermería , Investigación Metodológica en Enfermería , Cuidados Paliativos/psicología , Guías de Práctica Clínica como Asunto , Investigación Cualitativa , Derivación y Consulta/organización & administración , Encuestas y Cuestionarios
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