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1.
Front Sociol ; 9: 1331315, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38375150

RESUMEN

Introduction: Assistive technology is increasingly used to support the physical needs of differently abled persons but has yet to make inroads on support for cognitive or psychological issues. This gap is an opportunity to address another-the lack of contribution from theoretical social science that can provide insights into problems that cannot be seen. Using Affect Control Theory (ACT), the current project seeks to close that gap with an artificially intelligent application to improve interaction and affect for people with Alzheimer's Disease and Related Dementias (ADRD). Using sociological theory, it models interactions with persons with ADRD based on self-sentiments, rather than cognitive memory, and informs a cellphone-based assistive tool called VIPCare for supporting caregivers. Methods: Staff focus groups and interviews with family members of persons with ADRD in a long-term residential care facility collected residents' daily needs and personal histories. Using ACT's evaluation, potency, and activity dimensions, researchers used these data to formulate a self-sentiment profile for each resident and programmed that profile into the VIPCare application. VIPCare used that profile to simulate affectively intelligent social interactions with each unique resident that reduce deflection from established sentiments and, thus, negative emotions. Results: We report on the data collection to design the application, develop self-sentiment profiles for the resident, and generate assistive technology that applies a sociological theory of affect to real world management of interaction, emotion, and mental health. Discussion: By reducing trial and error in learning to engage people with dementia, this tool has potential to smooth interaction and improve wellbeing for a population vulnerable to distress.

2.
Artículo en Inglés | MEDLINE | ID: mdl-37889267

RESUMEN

OBJECTIVES: In a longitudinal design, this study investigates the role of the quality of relationships in the well-being of caregivers for a family member with advanced cancer, specifically, the quality of relations among family members and the caregiver's commitment to caregiving. Following the stress process model, good quality of relations and caregiver's high commitment should be resources mitigating caregiver burden, even though overinvestment in the caregiver role may lead to the opposite outcome. METHODS: Data were drawn from a longitudinal study of 336 caregivers of advanced cancer patients in an urban community, who were interviewed shortly after patient diagnosis and again 3 months later. Caregiver burden is measured by 4 subscales (17 items) of the Caregiver Reaction Assessment. We used a random-effect model to investigate the association between caregiver burden and the 2 focused contributing factors-caregiver commitment and family relationship quality-when other covariates were controlled. A fixed-effect model then examines the association between the changes in caregiver burden and related time-varying factors, including caregiver commitment, when family relationship quality was used as a moderator. RESULTS: Both the random and fixed-effect models consistently show that a cancer caregiver's positive commitment to the patient reduces caregiver burden, and family relationship quality provides an overall moderating influence that reduces the felt burden. DISCUSSION: The quality of relations between the caregiver and patient and with others in the family network is critical in understanding caregiver burden in advanced cancer and should be viewed as part of long-term family dynamics.


Asunto(s)
Cuidadores , Neoplasias , Humanos , Carga del Cuidador , Estudios Longitudinales , Emociones , Neoplasias/terapia , Calidad de Vida
3.
J Rehabil Assist Technol Eng ; 9: 20556683211061998, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35096413

RESUMEN

INTRODUCTION: In this paper, we study the support needed by professional caregivers of those with dementia, and present a first step toward development of VIPCare, a novel application with the goal of assisting new caregivers at care-centres in interacting with residents with dementia. METHODS: A mixed-methods study including two questionnaires, two focus groups, and seven co-design sessions with 17 professional caregivers was conducted to (a) understand caregivers' challenges/approaches used to reduce negative interactions with persons with dementia, (b) identify the existing gaps in supporting information for improving such interactions, and (c) co-design the user interface of an application that aims to help improve interactions between a new professional caregiver and persons with dementia. A pre-questionnaire assessed knowledge of smartphones and attitude toward technology. A post-questionnaire provided an initial evaluation of the designed user interface. RESULTS: Focus groups emphasized the importance of role-playing learned through trial and error. The layout/content of the application was then designed in four iterative paper-prototyping sessions with professional caregivers. An iOS/Android-based application was developed accordingly and was modified/improved in three iterative sessions. The initial results supported efficiency of VIPCare and suggested a low task load index. CONCLUSIONS: We presented a first step toward understanding caregiver needs and developing an application that can help reduce negative interactions between professional caregivers and those with dementia.

4.
Am J Phys Med Rehabil ; 100(9): 821-830, 2021 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-34091465

RESUMEN

OBJECTIVES: The aim of this study was to determine the impact of the COVID-19 pandemic on access to rehabilitation therapies and the impact of changes in therapy access on the physical and mental well-being of children with motor impairment and their caregivers. DESIGN: Caregivers of children younger than 18 yrs with childhood-onset motor impairment (primarily cerebral palsy) completed an anonymous survey through the online platform REDCap between May 5 and July 13, 2020. RESULTS: The survey was completed by 102 participants. Before the pandemic, 92 of 102 children (90%) were receiving one or more therapies; at the time surveyed, 55 children (54%) were receiving any therapies (P < 0.001). More than 40% of the sample reported increased child stress, decreased physical activity, and/or decline in mobility/movement. Participants who reported a decrease in number of therapies at the time surveyed more frequently reported lower satisfaction with treatment delivery (P < 0.001), a decline in child's mobility (P = 0.001), and increased caregiver stress (P = 0.004). Five qualitative themes were identified from open-ended question responses related to therapies and well-being. CONCLUSIONS: Access to pediatric rehabilitation therapies was disrupted during COVID-19. Disrupted access may be related to impact on physical and mental health. With the expansion of telehealth, caregiver and child feedback should be incorporated to optimize benefit.


Asunto(s)
COVID-19 , Parálisis Cerebral/rehabilitación , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Trastornos del Movimiento/rehabilitación , Cuarentena/psicología , Adolescente , Adulto , Carga del Cuidador/epidemiología , Cuidadores/psicología , Parálisis Cerebral/psicología , Niño , Continuidad de la Atención al Paciente/estadística & datos numéricos , Femenino , Humanos , Masculino , Limitación de la Movilidad , Trastornos del Movimiento/psicología , Investigación Cualitativa , SARS-CoV-2 , Estrés Psicológico/epidemiología , Estrés Psicológico/etiología , Encuestas y Cuestionarios
5.
Intern Med J ; 47(7): 775-784, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28422448

RESUMEN

BACKGROUND: Care gaps for stroke lead to preventable disability and deaths. The Victorian State Government implemented a programme of employing clinical Facilitators on a fixed-term basis for up to 3 years (2008-2011) in eight hospitals to improve stroke care. The Facilitators were to establish stroke units where absent, implement evidence-based management protocols and provide staff education within an agreed work plan. AIM: To determine if the Facilitator role was associated with improved stroke care and to describe factors supporting or mitigating enhancements to care. METHODS: A mixed methods design was employed with historical control using patient-level audit data (pre-Facilitator: n = 600; post-Facilitator: n = 387) and qualitative data from independently conducted semistructured interviews with hospital staff, including clinicians, executives and facilitators (n = 10 focus groups; 75 respondents). RESULTS: Stroke units, clinical pathways and outpatient clinics for managing transient ischaemic attacks (TIA) were established. Compared with the pre-Facilitator period, significant increases in patient access to stroke unit care (53% vs 86%, P < 0.001) and intravenous thrombolysis (2% vs 9%, P < 0.001) were achieved. Hospital staff reported that the Facilitator was integral to system improvements by fostering communication, encouraging team motivation and cohesiveness and increasing interest in stroke care. Ongoing barriers included limited resources to operate TIA clinics effectively, staff turnover requiring ongoing education, inconsistency in compliance with protocols and, in some hospitals, the need for formalised medical leadership. CONCLUSION: Fixed-term employment of Facilitators was effective in positively influencing stroke care in hospitals through a range of change management strategies where stroke-specific expertise had been previously limited.


Asunto(s)
Hospitales/normas , Auditoría Médica/normas , Grupo de Atención al Paciente/normas , Atención al Paciente/normas , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/terapia , Anciano , Anciano de 80 o más Años , Australia/epidemiología , Femenino , Grupos Focales/métodos , Grupos Focales/normas , Personal de Salud/normas , Humanos , Ataque Isquémico Transitorio/diagnóstico por imagen , Ataque Isquémico Transitorio/epidemiología , Ataque Isquémico Transitorio/terapia , Masculino , Auditoría Médica/métodos , Atención al Paciente/métodos , Accidente Cerebrovascular/diagnóstico por imagen , Terapia Trombolítica/métodos , Terapia Trombolítica/normas
6.
J Rehabil Assist Technol Eng ; 4: 2055668316685038, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-31186921

RESUMEN

Our overall aim is to develop an emotionally intelligent cognitive assistant (ICA) to help older adults with Alzheimer's disease (AD) to complete activities of daily living more independently. For improved adoption, such a system should take into account how individuals feel about who they are. This paper investigates different affective identities found in older care home residents with AD, leading to a computational characterization of these aspects and, thus, tailored prompts to each specific individual's identity in a way that potentially ensures smoother and more effective uptake and response. We report on a set of qualitative interviews with 12 older adult care home residents and caregivers. The interview covered life domains (family, origin, occupation, etc.), and feelings related to the ICA. All interviews were transcribed and analyzed to extract a set of affective identities, coded according to the social-psychological principles of affect control theory (ACT). Preliminary results show that a set of identities can be extracted for each participant (e.g. father, husband). Furthermore, our results provide support for the proposition that, while identities grounded in memories fade as a person loses their memory, habitual aspects of identity that reflect the overall "persona" may persist longer, even without situational context.

7.
BMJ Open ; 6(5): e010944, 2016 05 31.
Artículo en Inglés | MEDLINE | ID: mdl-27246000

RESUMEN

OBJECTIVES: Programmes to address chronic disease are a focus of governments worldwide. Despite growth in 'implementation science', there is a paucity of knowledge regarding the best means to measure sustainability. The aim of this review was to summarise current practice for measuring sustainability outcomes of chronic disease health programmes, providing guidance for programme planners and future directions for the academic field. SETTINGS: A scoping review of the literature spanning 1985-2015 was conducted using MEDLINE, CINAHL, PsychINFO and The Cochrane Library limited to English language and adults. Main search terms included chronic disease, acute care, sustainability, institutionalisation and health planning. A descriptive synthesis was required. Settings included primary care, hospitals, mental health centres and community health. PARTICIPANTS: Programmes included preventing or managing chronic conditions including diabetes, heart disease, depression, respiratory disease, cancer, obesity, dental hygiene and multiple chronic diseases. PRIMARY AND SECONDARY OUTCOME MEASURES: Outcome measures included clarifying a sustainability definition, types of methodologies used, timelines for assessment, criteria levels to determine outcomes and how methodology varies between intervention types. RESULTS: Among 153 abstracts retrieved, 87 were retained for full article review and 42 included in the qualitative synthesis. Five definitions for sustainability outcome were identified with 'maintenance of programme activities' most frequent. Achieving sustainability was dependent on inter-relationships between various organisational and social contexts supporting a broad scale approach to evaluation. An increasing trend in use of mixed methods designs over multiple time points to determine sustainability outcomes was found. CONCLUSIONS: Despite the importance and investment in chronic disease programmes, few studies are undertaken to measure sustainability. Methods to evaluate sustainability are diverse with some emerging patterns in measurement found. Use of mixed methods approaches over multiple time points may serve to better guide measurement of sustainability. Consensus on aspects of standardised measurement would promote the future possibility of meta-analytic syntheses.


Asunto(s)
Enfermedad Crónica/prevención & control , Educación en Salud , Promoción de la Salud , Hospitales , Evaluación de Programas y Proyectos de Salud/métodos , Enfermedad Crónica/terapia , Humanos , Afiliación Organizacional , Evaluación de Resultado en la Atención de Salud , Evaluación de Programas y Proyectos de Salud/tendencias , Terminología como Asunto
8.
Support Care Cancer ; 24(9): 3987-96, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27129838

RESUMEN

PURPOSE: This study drew on life course theory to argue that the strains of cancer caregiving and bereavement are modified by the age of the patient. We expected that caregivers of middle-aged patients would be more distressed than caregivers of older patients. METHODS: This panel study conducted 199 interviews with family caregivers of advanced cancer patients; first following diagnosis and again shortly after the patient's death. RESULTS: Among caregivers of middle-aged patients (40-59), grief mediated the relationship between baseline caregiving and bereavement depressed mood, with grief increasing risk of depression in bereavement. Among caregivers of young-old patients (60-79), grief had a suppressor effect on the relationship between caregiving and bereavement depressed mood, showing greater distress during caregiving than at bereavement. CONCLUSIONS: Caregiving for middle-aged cancer patients may increase the risk for severe grief and depression, whereas caregivers of young-old cancer patients appeared to experience relief at bereavement. After bereavement, continued observation may be warranted for caregivers of a middle-aged patient; grief, added to the ongoing demands of their lives (which may include those left behind by a middle-aged patient), may put such caregivers at risk for greater psychological and emotional distress.


Asunto(s)
Aflicción , Cuidadores/psicología , Neoplasias/psicología , Factores de Edad , Anciano , Depresión/psicología , Femenino , Pesar , Humanos , Masculino
9.
Psychooncology ; 25(2): 225-31, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25959260

RESUMEN

OBJECTIVES: Quality of Life (QoL) at baseline is frequently found to be a prognostic factor in cancer studies. However, little is known about the relationship of the trajectory of QoL and survival in patients with advanced cancer. This study evaluates the effects of both level and change of QoL on survival to explore the potential of utilizing longitudinal information of QoL for prognosis. METHODS: A series of joint models were used in a sample (N = 512) of patients diagnosed with advanced cancer (sample consisted of nine different cancer sites) with assessments of QoL across six time points and with survival information recorded up to 28 months after diagnosis. We used FACT-G as the QoL measure, and we evaluated the effects of change in QoL controlling for the time-dependent effects of chemotherapy and radiation. RESULTS: The median survival for patients was 14.2 months, and 10% of the sample had survived beyond 28 months after the diagnosis of advanced cancer. The effect of change of QoL on survival was significant (hazard ratio = 0.98; p < 0.001) controlling for time-dependent treatment effects. Also, the slope of the trajectory in QoL was found to be a significant predictor of survival (hazard ratio = 0.18; p < 0.001). CONCLUSION: These preliminary findings suggest that the patient's longitudinal experience in QoL may be a significant prognostic factor of survival, a novel finding with potentially important implications in medical decision making. Longitudinal information on QoL can be used for updating the patient's prognosis of survival.


Asunto(s)
Neoplasias/psicología , Satisfacción del Paciente , Calidad de Vida/psicología , Perfil de Impacto de Enfermedad , Adulto , Anciano , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias/terapia , Pronóstico , Modelos de Riesgos Proporcionales , Factores de Tiempo
10.
Am J Mens Health ; 10(5): 377-88, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-25595017

RESUMEN

African American men face the highest rates of prostate cancer, yet with no consensus for screening and treatment, making informed health care decisions is difficult. This study aimed to identify approaches to empowering African American men as proactive participants in prostate cancer decision making using an established community-campus partnership employing elements of community-based participatory research methods. Community stakeholders with an interest in, and knowledge about, health care in two local African American communities were recruited and completed key informant interviews (N = 39). Grounded theory coding identified common themes related to prostate cancer knowledge, beliefs, attitudes, and responses to them. Common barriers such as gender roles, fear, and fatalism were identified as barriers to work-up and treatment, and both communities' inadequate and inaccurate prostate cancer information described as the key problem. To build on community strengths, participants said the change must come from inside these communities, not be imposed from the outside. To accomplish this, they suggested reaching men through women, connecting men to doctors they can trust, making men's cancer education part of broader health education initiatives designed as fun and inexpensive family entertainment events, and having churches bring community members in to speak on their experiences with cancer. This study demonstrated the success of community engagement to identify not only barriers but also local strengths and facilitators to prostate cancer care in two suburban/rural African American communities. Building collaboratively on community strengths may improve prostate cancer care specifically and health care in general.


Asunto(s)
Negro o Afroamericano , Redes Comunitarias , Educación en Salud/organización & administración , Liderazgo , Neoplasias de la Próstata , Adulto , Anciano , Anciano de 80 o más Años , Investigación Participativa Basada en la Comunidad , Grupos Focales , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad
11.
Omega (Westport) ; 70(4): 351-79, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26036059

RESUMEN

We investigated the relationships of grief and depression to cancer caregiving in early bereavement. We began with three expectations: (a) each outcome would reflect different situational predictors, (b) grief would be more directly related to such predictors, and (c) components of grief would relate differently to the caregiving context and depressed mood. We conducted telephone interviews with family caregivers of incurable cancer patients from two hospitals. A total of 199 family caregivers were interviewed at the time of the patient's diagnosis and reinterviewed 3 months after the patient's death. Results showed grief severity was predicted by caregiving circumstances, but bereavement depressed mood was largely unrelated to caregiving. Grief was the main predictor of depressed mood and mediated almost all other effects. We conclude that while grief may trigger depression, the dissimilar connection to context means that the two emotional states should not be equated based purely on similarity of expression.


Asunto(s)
Aflicción , Cuidadores/psicología , Cuidados Paliativos al Final de la Vida/psicología , Neoplasias/psicología , Apoyo Social , Adaptación Psicológica , Adulto , Anciano , Actitud Frente a la Muerte , Actitud Frente a la Salud , Familia/psicología , Femenino , Cuidados Paliativos al Final de la Vida/métodos , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/terapia
12.
Support Care Cancer ; 22(5): 1251-9, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24317850

RESUMEN

PURPOSE: This paper examines the relationship between race, religiousness, spiritual well-being, antitumor treatment and preference for aggressive care among Black and White patients with advanced stage lung cancer receiving ambulatory cancer care in an urban setting. METHODS: A cross-sectional exploration of patients enrolled in a Cleveland-based longitudinal study after initial diagnosis of advanced lung cancer were interviewed in Cleveland regarding religiousness, spiritual well-being, preferences for cardiopulmonary resuscitation (CPR), goals of aggressive care, and willingness to tolerate adverse health states. Receipt of antitumor treatment was identified from medical records. RESULTS: We analyzed data from 67 Black and 129 White patients (N=196). Regression analysis for CPR showed that race was not associated with preference for CPR (OR=1.12, CI 0.44-2.85). The odds of choosing CPR were three times higher among patients receiving antitumor treatment (OR=3.26, CI 1.12-9.44). Greater willingness to endure adverse health states was associated with higher spiritual well-being scores (b=0.12, CI 0.01-0.25). Choosing goals to extend life versus relieve pain was higher among persons with higher spiritual well-being as well (RRR=1.08, CI 1.01-1.16), yet the relationship with religiousness was negative (RRR=0.46, CI 0.22-0.98). CONCLUSIONS: After controlling for multiple factors, race was associated only with CPR, but not with other measures of preference for aggressive care. In addition, receipt of active antitumor treatment was positively associated with preference for CPR and spiritual well-being was important to setting end-of-life care goals and perspectives. Future directions for tailoring end-of-life care decision-making initiatives should move beyond race and discussions of CPR alone and focus on a full spectrum of patient beliefs and preferences at the end of life.


Asunto(s)
Negro o Afroamericano/psicología , Reanimación Cardiopulmonar/psicología , Neoplasias Pulmonares/etnología , Neoplasias Pulmonares/terapia , Cuidado Terminal/psicología , Poblaciones Vulnerables/psicología , Población Blanca/psicología , Adulto , Anciano , Estudios Transversales , Toma de Decisiones , Femenino , Cuidados Paliativos al Final de la Vida/métodos , Cuidados Paliativos al Final de la Vida/psicología , Humanos , Estudios Longitudinales , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/psicología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Religión y Medicina , Espiritualidad , Cuidado Terminal/métodos , Poblaciones Vulnerables/etnología
14.
Patient Educ Couns ; 85(3): 446-53, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21439755

RESUMEN

OBJECTIVE: Advanced cancer family caregivers who have good relationships with other family members and with patient's health care providers (PHCPs) have less emotional distress than caregivers with poor relationships. Given a history of different experiences in medical settings among Whites and African Americans, we examined moderation effects by race. METHODS: Baseline data from an ongoing study were collected via telephone interviews with 397 family caregivers of advanced cancer patients at two cancer clinics. Depressed mood and anxiety were measured with the 14-item Profile of Mood States. RESULTS: Caregivers reporting good relationships with family (p<.001) and PHCPs (p<.001) had lower anxiety and less depressed mood (family, p<.01; PHCP, p<.001). Caregiver race moderated relationship quality: Whites with good PHCP relationships felt less depressed mood (p<.01) and anxiety (p<.01). African Americans with good family relationships showed less depressed mood (p<.05), but no association with anxiety. CONCLUSION: Good relationships are important for caregivers, but PHCPs may have more influence on the wellbeing of White than of African American caregivers. PRACTICE IMPLICATIONS: Developing relationships with caregivers of advanced cancer patients may improve wellbeing for caregivers. In addition, creating strategies to support family relationships may be a useful intervention, especially for African American advanced cancer caregivers.


Asunto(s)
Negro o Afroamericano/psicología , Cuidadores/psicología , Relaciones Familiares/etnología , Neoplasias/enfermería , Población Blanca/psicología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Emociones , Femenino , Humanos , Relaciones Interpersonales , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Neoplasias/etnología , Neoplasias/psicología , Apoyo Social , Factores Socioeconómicos , Estrés Psicológico , Encuestas y Cuestionarios , Cuidado Terminal/psicología , Adulto Joven
15.
Support Care Cancer ; 18(11): 1429-36, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19898879

RESUMEN

OBJECTIVE: This study explores how caregiver relationship quality with family, patient, and patient's health care provider (HCP) is associated with subjective caregiver burden during the early treatment phase for late-stage cancer. METHOD: Burden and relationship quality were assessed in telephone interviews with family caregivers (FCGs) of advanced cancer patients. The five subscales of the Caregiver Reaction Assessment measured burden, while relationships were measured with the Family Relationship Index, the Family Inventory of Needs subscale of met needs, and a scale assessing family discord in cancer communication. RESULTS: Multiple linear regression analyses in SPSS (v16) of 420 FCGs showed that higher quality relationship with family was associated with lower burden in FCG abandonment, health, scheduling (p < 0.001) and finances (p < 0.01). Higher quality relationship with patients' HCPs was associated with lower burden in FCG abandonment (p < 0.05), health, and finances (p < 0.001). More discordant communication in patient relationship was associated with lower financial burden (p < 0.05). Relationship quality was not associated with caregiver self-esteem. CONCLUSIONS: Findings demonstrate that caregiver relationship quality with family and with HCP are important factors in understanding caregiver burden during the early treatment phase of late-stage cancer care.


Asunto(s)
Cuidadores/psicología , Relaciones Familiares , Neoplasias/enfermería , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Comunicación , Costo de Enfermedad , Femenino , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias/economía , Autoimagen , Adulto Joven
16.
J Nat Prod ; 72(2): 276-9, 2009 Feb 27.
Artículo en Inglés | MEDLINE | ID: mdl-19191549

RESUMEN

Three new antibiotics, neopyrrolomycins B (1), C (2), and D (3), with potent activity against Gram-positive pathogens were discovered. They exhibited MIC values < 1 microg/mL versus a number of resistant strains. The compounds were obtained from the ethyl acetate extracts of a Streptomyces sp. after purification by column chromatography and RP-HPLC. Their structures were elucidated using X-ray crystallography (1) and NMR spectroscopy (2 and 3).


Asunto(s)
Antibacterianos/aislamiento & purificación , Antibacterianos/farmacología , Streptomyces/química , Antibacterianos/química , Cristalografía por Rayos X , Farmacorresistencia Bacteriana/efectos de los fármacos , Ensayos de Selección de Medicamentos Antitumorales , Enterococcus faecium/efectos de los fármacos , Escherichia coli/efectos de los fármacos , Humanos , Klebsiella pneumoniae/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Pruebas de Sensibilidad Microbiana , Conformación Molecular , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Pseudomonas aeruginosa/efectos de los fármacos , Pirroles/química , Pirroles/aislamiento & purificación , Pirroles/farmacología , Streptococcus pneumoniae/efectos de los fármacos , Vancomicina/farmacología
17.
J Nat Prod ; 71(12): 2032-5, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19053507

RESUMEN

Two new xanthone antibiotics, citreamicin delta (1) and epsilon (2), with potent activity against Gram-positive pathogens including multidrug-resistant Staphylococcus aureus (MDRSA) were discovered. Compounds 1 and 2 exhibited MIC values < 1 microg/mL versus a number of resistant strains. The compounds were obtained from EtOAc extracts of Streptomyces vinaceus and were purified by countercurrent chromatography and reversed-phase HPLC. Their structures were elucidated using primarily NMR and mass spectroscopy.


Asunto(s)
Farmacorresistencia Bacteriana Múltiple/efectos de los fármacos , Bacterias Grampositivas/efectos de los fármacos , Staphylococcus aureus/efectos de los fármacos , Antibacterianos/química , Antibacterianos/farmacología , Cromatografía Líquida de Alta Presión , Humanos , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Oxazoles/química , Oxazoles/farmacología
18.
J Antibiot (Tokyo) ; 61(11): 675-9, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19168982

RESUMEN

Resistance to currently available antibiotics has become a widely recognized crisis in the medical community. To address this, many companies and researchers are refocusing their attention towards natural products, which have an excellent track record of producing effective antibacterial drugs. The AMRI natural product library was screened for activity against multi-drug resistant Staphylococcus aureus (MDRSA). The active samples were counter screened for cytotoxicity against the human hepatocellular carcinoma HepG2 cell line to determine an in vitro therapeutic index (in vitro TI). Those samples with a high in vitro TI were selected for fractionation and dereplication. This led to the discovery of a new anthracycline structure. This metabolite, named mutactimycin E (1), exhibited moderate activity against several gram positive organisms. Here we report the isolation, structure elucidation and biological activities of this new compound.


Asunto(s)
Antraciclinas/farmacología , Antibacterianos/farmacología , Bacterias Grampositivas/efectos de los fármacos , Antraciclinas/química , Antraciclinas/aislamiento & purificación , Antraciclinas/toxicidad , Antibacterianos/química , Antibacterianos/aislamiento & purificación , Antibacterianos/toxicidad , Línea Celular , Hepatocitos/efectos de los fármacos , Humanos , Estructura Molecular , Bibliotecas de Moléculas Pequeñas , Análisis Espectral
19.
Community Ment Health J ; 38(2): 95-110, 2002 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-11944793

RESUMEN

Involvement of mental health service consumers in the provision of mental health services is a growing model in community mental health. It is, however, a complicated issue, made ever more so by the passage of the Americans with Disabilities Act. In this ethnographic case study, we seek to explore the changes one social services agency has made to adjust to the requirements of the ADA and the impact of these changes on their consumer employees. Our results indicate potential for positive progress as a result of the ADA, but also unexpected pitfalls as organizational cultures change as well.


Asunto(s)
Actitud del Personal de Salud/etnología , Servicios Comunitarios de Salud Mental , Participación de la Comunidad/psicología , Empleos Subvencionados/legislación & jurisprudencia , Ética Institucional , Enfermos Mentales/legislación & jurisprudencia , Cultura Organizacional , Antropología Cultural , Beneficencia , Servicios Comunitarios de Salud Mental/normas , Humanos , Relaciones Interpersonales , Entrevistas como Asunto , Modelos Organizacionales , Obligaciones Morales , New York , Evaluación de Programas y Proyectos de Salud , Responsabilidad Social , Recursos Humanos
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