Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 29
Filtrar
Más filtros

Banco de datos
Tipo del documento
Intervalo de año de publicación
1.
JAAPA ; 34(9): 35-41, 2021 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-34448776

RESUMEN

OBJECTIVE: This study examined the effect of depression and burnout on PA professional fulfillment and medical errors. METHODS: Eight hundred eighty PAs completed an online survey containing the Professional Fulfillment Index, PHQ-2, GAD-7, and demographic questions. Two serial mediation models examined the relationship between depression, burnout, and professional outcomes. RESULTS: Burnout fully mediated the relationship between depression and outcomes in both models and the present research indicates that burnout plays a stronger role in job satisfaction than symptoms of depression. CONCLUSIONS: Understanding the underpinnings of professional satisfaction may mitigate clinician turnover, which in turn may lead to cost savings for the organization, better resilience and mental health for clinicians, and potentially better patient outcomes.


Asunto(s)
Agotamiento Profesional , Depresión , Agotamiento Profesional/epidemiología , Depresión/epidemiología , Humanos , Satisfacción en el Trabajo , Reorganización del Personal , Encuestas y Cuestionarios
2.
CA Cancer J Clin ; 63(3): 167-92, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23355109

RESUMEN

Hot flashes are prevalent and severe symptoms that can interfere with mood, sleep, and quality of life for women and men with cancer. The purpose of this article is to review existing literature on the risk factors, pathophysiology, and treatment of hot flashes in individuals with cancer. Electronic searches were conducted to identify relevant English-language literature published through June 15, 2012. Results indicated that risk factors for hot flashes in cancer include patient-related factors (eg, age, race/ethnicity, educational level, smoking history, cardiovascular risk including body mass index, and genetics) and disease-related factors (eg, cancer diagnosis and dose/type of treatment). In addition, although the pathophysiology of hot flashes has remained elusive, these symptoms are likely attributable to disruptions in thermoregulation and neurochemicals. Therapies that have been offered or tested fall into 4 broad categories: pharmacological, nutraceutical, surgical, and complementary/behavioral strategies. The evidence base for this broad range of therapies varies, with some treatments not yet having been fully tested or showing equivocal results. The evidence base surrounding all therapies is evaluated to enhance hot flash treatment decision-making by clinicians and patients.


Asunto(s)
Sofocos/etiología , Neoplasias/complicaciones , Antagonistas Adrenérgicos/uso terapéutico , Anticonvulsivantes/uso terapéutico , Antidepresivos/uso terapéutico , Bloqueo Nervioso Autónomo , Regulación de la Temperatura Corporal/fisiología , Antagonistas Colinérgicos/uso terapéutico , Terapia Cognitivo-Conductual , Terapias Complementarias , Sofocos/fisiopatología , Sofocos/terapia , Humanos , Neoplasias/fisiopatología , Neoplasias/terapia , Fitoterapia , Factores de Riesgo , Ganglio Estrellado/cirugía , Vitaminas/uso terapéutico
3.
Support Care Cancer ; 26(8): 2605-2613, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-29455301

RESUMEN

PURPOSE: This study aims (1) to estimate percentages of partnered women who are sexually active over the first 2 years post-breast cancer diagnosis; (2) to identify factors related to sexual inactivity; and (3) to evaluate separately, among both sexually active and inactive survivors, the relation between sexual problems and treatment-related variables, symptoms, and psychosocial factors. METHODS: Longitudinal observational study of breast cancer survivors recruited within 8 months of cancer diagnosis and followed for 18 months. The main outcome measures were (1) being sexually active/inactive in the past month and (2) sexual problems assessed with the four-item sexual problem domain of the Quality of Life in Adult Cancer Survivors (QLACS) scale. RESULTS: At baseline, 52.4% of women reported being sexually active in the past month. This percentage increased to 60.7% 18 months later. In multivariable repeated-measures analyses, age, past chemotherapy, depressive symptoms, and lower perceived attractiveness were related to inactivity. Sexually inactive women reported more problems on the QLACS than sexually active women. In stratified multivariable analyses, depressive symptoms were related to greater sexual problems for both sexually active and inactive women, as was vaginal dryness. Among the sexually active women, younger age at diagnosis, less illness intrusiveness, and lower perceived attractiveness were related to more problems. CONCLUSIONS: Research has shown that sexual functioning/sexual health are key aspects of quality of life for many cancer survivors, and are often not addressed by health care providers. Future studies should examine how such topics are handled by clinicians in their interactions with survivors.


Asunto(s)
Neoplasias de la Mama/psicología , Supervivientes de Cáncer/psicología , Calidad de Vida/psicología , Conducta Sexual/psicología , Femenino , Humanos , Persona de Mediana Edad , Estudios Prospectivos
4.
Plast Surg Nurs ; 37(4): 146-153, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29210972

RESUMEN

The purpose of this study was to evaluate the prevalence of met and unmet expectations after breast reconstruction among breast cancer survivors following mastectomy. A secondary objective was to examine reasons women report their experiences of reconstructive surgery were better or worse than expected. As part of a larger study of breast cancer survivors, participants completed self-administered questionnaires within 8 months of diagnosis and at 6, 12, and 18 months later. At the 18-month follow-up, women who had breast reconstruction were asked whether their reconstruction was better, the same, or worse than expected. The sample consisted of 130 survivors (mean age = 48.5 years) who had breast reconstruction following mastectomy and completed the 18-month follow-up, 42% of whom reported their reconstruction was worse than expected and only 25% reported it was better. Most frequently reported reasons for reconstruction being worse than expected were related to appearance of the reconstructed breast and pain. A high percentage of patients with breast cancer undergoing breast reconstruction following mastectomy reported the results as worse than expected, with the primary reasons for dissatisfaction related to the feel and appearance of the reconstructed breast. Patients with breast cancer considering breast reconstruction need better preoperative education or understanding about what to expect from reconstruction.


Asunto(s)
Neoplasias de la Mama/psicología , Neoplasias de la Mama/cirugía , Supervivientes de Cáncer , Mamoplastia/psicología , Satisfacción del Paciente , Adulto , Belleza , Femenino , Estudios de Seguimiento , Humanos , Estudios Longitudinales , Mamoplastia/efectos adversos , Mastectomía , Persona de Mediana Edad , Dolor , Apariencia Física , Encuestas y Cuestionarios
5.
Mol Cell Proteomics ; 12(11): 3210-20, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23929892

RESUMEN

Breast cancer subtype-specific molecular variations can dramatically affect patient responses to existing therapies. It is thought that differentially phosphorylated protein isoforms might be a useful prognostic biomarker of drug response in the clinic. However, the accurate detection and quantitative analysis of cancer-related protein isoforms and phospho-isoforms in tumors are limited by current technologies. Using a novel, fully automated nanocapillary electrophoresis immunoassay (NanoPro(TM) 1000) designed to separate protein molecules based on their isoelectric point, we developed a reliable and highly sensitive assay for the detection and quantitation of AKT isoforms and phosphoforms in breast cancer. This assay enabled the measurement of activated AKT1/2/3 in breast cancer cells using protein produced from as few as 56 cells. Importantly, we were able to assign an identity for the phosphorylated S473 phosphoform of AKT1, the major form of activated AKT involved in multiple cancers, including breast, and a current focus in clinical trials for targeted intervention. The ability of our AKT assay to detect and measure AKT phosphorylation from very low amounts of total protein will allow the accurate evaluation of patient response to drugs targeting activated PI3K-AKT using scarce clinical specimens. Moreover, the capacity of this assay to detect and measure all three AKT isoforms using one single pan-specific antibody enables the study of the multiple and variable roles that these isoforms play in AKT tumorigenesis.


Asunto(s)
Neoplasias de la Mama/enzimología , Inmunoensayo/métodos , Proteínas Proto-Oncogénicas c-akt/metabolismo , Neoplasias de la Mama/tratamiento farmacológico , Línea Celular Tumoral , Electroforesis Capilar/métodos , Femenino , Humanos , Isoenzimas/análisis , Isoenzimas/metabolismo , Lapatinib , Redes y Vías Metabólicas , Técnicas Analíticas Microfluídicas/métodos , Nanotecnología/métodos , Oxadiazoles/farmacología , Fosforilación , Inhibidores de Proteínas Quinasas/farmacología , Proteómica/métodos , Proteínas Proto-Oncogénicas c-akt/análisis , Quinazolinas/farmacología
6.
Endocrinology ; 165(5)2024 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-38597659

RESUMEN

We examined the effect of the puberty blocker, leuprolide acetate, on sex differences in juvenile rough-and-tumble play behavior and anxiety-like behavior in adolescent male and female rats. We also evaluated leuprolide treatment on gonadal and pituitary hormone levels and activity-regulated cytoskeleton-protein messenger RNA levels within the adolescent amygdala, a region important both for rough-and-tumble play and anxiety-like behavior. Our findings suggest that leuprolide treatment lowered anxiety-like behavior during adolescent development, suggesting that the maturation of gonadotropin-releasing hormone systems may be linked to increased anxiety. These data provide a potential new model to understand the emergence of increased anxiety triggered around puberty. Leuprolide also reduced masculinized levels of rough-and-tumble play behavior, lowered follicle-stimulating hormone, and produced a consistent pattern of reducing or halting sex differences of hormone levels, including testosterone, growth hormone, thyrotropin, and corticosterone levels. Therefore, leuprolide treatment not only pauses sexual development of peripheral tissues, but also reduces sex differences in hormones, brain, and behavior, allowing for better harmonization of these systems following gender-affirming hormone treatment. These data contribute to the intended use of puberty blockers in stopping sex differences from developing further with the potential benefit of lowering anxiety-like behavior.


Asunto(s)
Ansiedad , Conducta Animal , Leuprolida , Maduración Sexual , Animales , Leuprolida/farmacología , Masculino , Femenino , Ansiedad/tratamiento farmacológico , Ratas , Conducta Animal/efectos de los fármacos , Maduración Sexual/efectos de los fármacos , Caracteres Sexuales , Amígdala del Cerebelo/efectos de los fármacos , Amígdala del Cerebelo/metabolismo , Corticosterona/sangre , Ratas Sprague-Dawley , Testosterona/sangre
7.
J Am Coll Health ; : 1-9, 2023 Jan 03.
Artículo en Inglés | MEDLINE | ID: mdl-36595664

RESUMEN

Objective: To understand the wellness needs of university employees to design more effective and inclusive worksite wellness programs (WWP) for health promotion. Methods: Cross-sectional assessment of university employees' wellness needs (online survey, n = 639). Results: Employees were most interested in physical activity (PA), nutrition, and lifestyle WWP. Principal barriers to participation were time, scheduling, location, motivation, and confidentiality concerns. Significant correlations exist between having a diagnosed health condition and the likelihood of participating in related programs. 67.1% of past participation was predicted by (1) health status today versus last year, (2) use of university recreational facilities, (3) gender, (4) general health status, (5) PA in the past month, (6) faculty/staff, and (7) age. Conclusions: Our findings contribute to building a road map of how-to better design university WWP based on understanding participation predictors, barriers/facilitators, and the influence of health status/conditions on topics of interest/participation. Tailoring WWP to meet employees' needs may increase reach, engagement and promote a health culture.

8.
Am J Clin Hypn ; 54(4): 294-310, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22655332

RESUMEN

Pain is a serious health care problem and there is growing evidence to support the use of hypnosis and cognitive-behavioral interventions for pain management. This article reviews clinical techniques and methods of cognitive hypnotherapy for pain management. Current research with emphasis given to randomized, controlled trials is presented and the efficacy of hypnotherapy for pain management is discussed. Evidence for cognitive hypnotherapy in the treatment in chronic pain, cancer, osteoarthritis, sickle cell disease, temporomandibular disorder, fibromyalgia, non-cardiac chest pain, and disability related chronic pains are identified. Implications for clinical practice and research are discussed in light of the accumulating evidence in support of the efficacy and effectiveness of cognitive hypnotherapy for pain management.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Hipnosis/métodos , Manejo del Dolor/métodos , Enfermedad Crónica , Humanos , Dolor/psicología , Ensayos Clínicos Controlados Aleatorios como Asunto , Terapia por Relajación/métodos
9.
Psychol Rep ; 110(1): 218-26, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22489387

RESUMEN

This paper addresses the preliminary development, construct validity, and psychometric properties of a brief self-report measure of psychological distress. 40 items were originally generated by doctoral level psychologists for use in the preliminary clinical sample. Inpatients from a psychiatric unit (N = 125) completed the items, and a principal-components analysis with a direct oblimin rotation was used to evaluate construct validity. The study indicated a four-factor solution, using the constructs of Depression, Hopelessness, Anxiety, and Anger, with good estimates of reliability. After evaluation of factor structure, item analyses, and reliability estimates, a redacted 19-item scale was identified.


Asunto(s)
Escalas de Valoración Psiquiátrica/normas , Estrés Psicológico/diagnóstico , Adulto , Ira , Ansiedad/diagnóstico , Ansiedad/psicología , Depresión/diagnóstico , Depresión/psicología , Femenino , Humanos , Masculino , Análisis de Componente Principal , Psicometría , Reproducibilidad de los Resultados , Autoinforme , Estrés Psicológico/psicología
10.
J Am Coll Health ; : 1-9, 2022 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-35881772

RESUMEN

This study assesses college students' intent to intervene when presented with a hypothetical peer exhibiting depression in one of three scenarios: depression, sadness, and depression in quarantine during COVID-19. Using the Theory of Planned Behavior (TPB), variations in constructs associated with intent were examined by context (external triggers vs. no trigger), knowledge of, and experience with depression. One hundred and sixteen health sciences students read three vignettes and completed an enhanced TPB questionnaire. Intent to intervene was greater when the vignette target was experiencing depression with external stressors. Prior experience with depression and knowing someone with depression were associated with greater intent to connect the hypothetical peer to counseling resources regardless of vignette scenario. Due to increased mental health concerns resulting from the COVID-19 pandemic, efforts promoting awareness of mental illness in peers may benefit from increasing education about stressors and causes of depression that may not be observable.

11.
BMC Complement Altern Med ; 11: 92, 2011 Oct 11.
Artículo en Inglés | MEDLINE | ID: mdl-21989181

RESUMEN

BACKGROUND: Hot flashes are a highly prevalent problem associated with menopause and breast cancer treatments. The recent findings from the Women's Health Initiative have important implications for the significance of a non-hormonal, mind-body intervention for hot flashes in breast cancer survivors. Women who take hormone therapy long-term may have a 1.2 to 2.0 fold increased risk of developing breast cancer. In addition, it is now known that hormone therapy with estrogen and progestin is associated with increased risk of cardiovascular disease and stroke. Currently there are limited options to hormone replacement therapy as non-hormonal pharmacological agents are associated with only modest activity and many adverse side effects. Because of this there is a need for more alternative, non-hormonal therapies. Hypnosis is a mind-body intervention that has been shown to reduce self-reported hot flashes by up to 68% among breast cancer survivors, however, the use of hypnosis for hot flashes among post-menopausal women has not been adequately explored and the efficacy of hypnosis in reducing physiologically measured hot flashes has not yet been determined. METHODS/DESIGN: A sample of 180 post-menopausal women will be randomly assigned to either a 5-session Hypnosis Intervention or 5-session structured-attention control with 12 week follow-up. The present study will compare hypnosis to a structured-attention control in reducing hot flashes (perceived and physiologically monitored) in post-menopausal women in a randomized clinical trial. Outcomes will be hot flashes (self-report daily diaries; physiological monitoring; Hot Flash Related Daily Interference Scale), anxiety (State-Trait Anxiety Inventory; Hospital Anxiety and Depression Scale (HADS); anxiety visual analog scale (VAS rating); depression (Center for Epidemiologic Studies Depression Scale), sexual functioning (Sexual Activity Questionnaire), sleep quality (Pittsburgh Sleep Quality Index) and cortisol. DISCUSSION: This study will be the first full scale test of hypnosis for hot flashes; one of the first studies to examine both perceived impact and physiologically measured impact of a mind-body intervention for hot flashes using state-of-the-art 24 hour ambulatory physiological monitoring; the first study to examine the effect of hypnosis for hot flashes on cortisol; and the first investigation of the role of cognitive expectancies in treatment of hot flashes in comparison to a Structured-Attention Control. TRIAL REGISTRATION: This clinical trial has been registered with ClinicalTrials.gov, a service of the U.S. National Institutes of Health, ClinicalTrials.gov Identifier: NCT01293695.


Asunto(s)
Sofocos/terapia , Hipnosis , Protocolos Clínicos , Femenino , Estudios de Seguimiento , Sofocos/metabolismo , Sofocos/fisiopatología , Sofocos/psicología , Humanos , Hidrocortisona/metabolismo , Persona de Mediana Edad , Posmenopausia
12.
JMIR Cancer ; 7(1): e18396, 2021 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-33475511

RESUMEN

BACKGROUND: Cardiovascular health is of increasing concern to breast cancer survivors and their health care providers, as many survivors are more likely to die from cardiovascular disease than cancer. Implementing clinical decision support tools to address cardiovascular risk factor awareness in the oncology setting may enhance survivors' attainment or maintenance of cardiovascular health. OBJECTIVE: We sought to evaluate survivors' awareness of cardiovascular risk factors and examine the usability of a novel electronic health record enabled cardiovascular health tool from the perspective of both breast cancer survivors and oncology providers. METHODS: Breast cancer survivors (n=49) recruited from a survivorship clinic interacted with the cardiovascular health tool and completed pre and posttool assessments about cardiovascular health knowledge and perceptions of the tool. Oncologists, physician assistants, and nurse practitioners (n=20) who provide care to survivors also viewed the cardiovascular health tool and completed assessments of perceived usability and acceptability. RESULTS: Enrolled breast cancer survivors (84% White race, 4% Hispanic ethnicity) had been diagnosed 10.8 years ago (SD 6.0) with American Joint Committee on Cancer stage 0, I, or II (45/49, 92%). Prior to viewing the tool, 65% of survivors (32/49) reported not knowing their level for one or more cardiovascular health factors (range 0-4). On average, only 45% (range 0%-86%) of survivors' known cardiovascular health factors were at an ideal level. More than 50% of survivors had ideal smoking status (45/48, 94%) or blood glucose level (29/45, 64%); meanwhile, less than 50% had ideal blood pressure (12/49, 24%), body mass index (12/49, 24%), cholesterol level (17/35, 49%), diet (7/49, 14%), and physical activity (10/49. 20%). More than 90% of survivors thought the tool was easy to understand (46/47, 98%), improved their understanding (43/47, 91%), and was helpful (45/47, 96%); overall, 94% (44/47 survivors) liked the tool. A majority of survivors (44/47, 94%) thought oncologists should discuss cardiovascular health during survivorship care. Most (12/20, 60%) oncology providers (female: 12/20, 60%; physicians: 14/20, 70%) had been practicing for more than 5 years. Most providers agreed the tool provided useful information (18/20, 90%), would help their effectiveness (18/20, 90%), was easy to use (20/20, 100%), and presented information in a useful format (19/20, 95%); and 85% of providers (17/20) reported they would use the tool most or all of the time when providing survivorship care. CONCLUSIONS: These usability data demonstrate acceptability of a cardiovascular health clinical decision support tool in oncology practices. Oncology providers and breast cancer survivors would likely value the integration of such apps in survivorship care. By increasing awareness and communication regarding cardiovascular health, electronic health record-enabled tools may improve survivorship care delivery for breast cancer and ultimately patient outcomes.

13.
Curr Treat Options Oncol ; 11(3-4): 128-40, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21116746

RESUMEN

There is growing interest in mind-body therapies as adjuncts to mainstream cancer treatment, and an increasing number of patients turn to these interventions for the control of emotional stress associated with cancer. Increased research funding has enabled many such interventions to be evaluated for their efficacy, including studies of mind-body interventions to reduce pain, anxiety, insomnia, anticipatory, and treatment-related nauseas, hot flashes, and improved mood. Mind-body treatments evaluated for their utility in oncology include relaxation therapies, biofeedback, meditation and hypnosis, yoga, art and music therapy, tai chi, and qigong. Although studies are not always methodologically sound and results mixed, a growing number of well-designed studies provide convincing evidence that mind-body techniques are beneficial adjuncts to cancer treatment. The evidence is sufficient to recommend further investigation and adoption of these techniques in mainstream oncology care.


Asunto(s)
Medicina Integrativa/métodos , Oncología Médica/métodos , Terapias Mente-Cuerpo , Neoplasias/terapia , Humanos
14.
J Physician Assist Educ ; 31(2): 56-62, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32459443

RESUMEN

PURPOSE: Burnout among health care professionals and preprofessional health care students is of growing concern because of its detrimental effects on performance, mental health, and physical health. Research to date has focused primarily on physicians and medical students. The purpose of this study was to assess burnout and the quality of life among physician assistant (PA) students and gauge their interest in specific wellness interventions that address those issues in their PA program. METHODS: An online survey consisting of validated measures for burnout and quality of life was completed by 320 PA students from all 8 Virginia PA programs (n = 8). Additionally, student interest in various wellness interventions was assessed, including preferences for timing and delivery, to inform development of a tailored well-being component in the PA curriculum to reduce burnout. RESULTS: We found burnout to be prevalent among PA students, with 79.69% reporting high levels of emotional exhaustion; 56.56% of students met the criteria for cynicism. Survey participants rated stress reduction (n = 290, 90.63%) and burnout (n = 299, 93.44%) as primary issues that need to be addressed in the PA student population. Furthermore, 77.50% of participants expressed interest in participating in a wellness intervention designed to reduce burnout. CONCLUSION: Given the high prevalence of burnout in the PA students surveyed, resources and potential interventions that reduce burnout need to be identified. The current study identified PA students' perceived needs and interest in various aspects of potential wellness interventions in the PA program. Students preferred an emphasis on stress reduction and burnout, which can be used to develop a tailored well-being curriculum to promote work-life balance and stress management for PA students.


Asunto(s)
Agotamiento Profesional/epidemiología , Promoción de la Salud/estadística & datos numéricos , Asistentes Médicos/psicología , Adulto , Agotamiento Profesional/prevención & control , Agotamiento Profesional/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida , Estrés Psicológico/prevención & control , Estrés Psicológico/terapia , Adulto Joven
15.
BMC Urol ; 8: 7, 2008 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-18433501

RESUMEN

BACKGROUND: Steroid hormones influence mitogenic signaling pathways, apoptosis, and cell cycle checkpoints, and it has long been known that incidence of bladder cancer (BC) in men is several times greater than in women, a difference that cannot be attributed to environmental or lifestyle factors alone. Castration reduces incidence of chemically-induced BC in rodents. It is unclear if this effect is due to hormonal influences on activation/deactivation of carcinogens or a direct effect on urothelial cell proliferation or other malignant processes. We examined the effect of castration on BC growth in UPII-SV40T transgenic mice, which express SV40 T antigen specifically in urothelium and reliably develop BC. Furthermore, because BC growth in UPII-SV40T mice is exophytic, we speculated BC growth was dependent on angiogenesis and angiogenesis was, in turn, androgen responsive. METHODS: Flat panel detector-based cone beam computed tomography (FPDCT) was used to longitudinally measure exophytic BC growth in UPII-SV40T male mice sham-operated, castrated, or castrated and supplemented with dihydrotestosterone (DHT). Human normal bladder and BC biopsies and mouse bladder were examined quantitatively for thrombospondin-1 (TSP1) protein expression. RESULTS: Mice castrated at 24 weeks of age had decreased BC volumes at 32 weeks compared to intact mice (p = 0.0071) and castrated mice administered DHT (p = 0.0233; one-way ANOVA, JMP 6.0.3, SAS Institute, Inc.). Bladder cancer cell lines responded to DHT treatment with increased proliferation, regardless of androgen receptor expression levels. TSP1, an anti-angiogenic factor whose expression is inhibited by androgens, had decreased expression in bladders of UPII-SV40T mice compared to wild-type. Castration increased TSP1 levels in UPII-SV40T mice compared to intact mice. TSP1 protein expression was higher in 8 of 10 human bladder biopsies of normal versus malignant tissue from the same patients. CONCLUSION: FPDCT allows longitudinal monitoring of exophytic tumor growth in the UPII-SV40T model of BC that bypasses need for chemical carcinogens, which confound analysis of androgen effects. Androgens increase tumor cell growth in vitro and in vivo and decrease TSP1 expression, possibly explaining the therapeutic effect of castration. This effect may, in part, explain gender differences in BC incidence and implies anti-androgenic therapies may be effective in preventing and treating BC.


Asunto(s)
Andrógenos/fisiología , Trombospondina 1/fisiología , Neoplasias de la Vejiga Urinaria/patología , Animales , Proliferación Celular , Modelos Animales de Enfermedad , Ratones , Ratones Transgénicos , Orquiectomía
17.
Cell Syst ; 4(1): 73-83.e10, 2017 01 25.
Artículo en Inglés | MEDLINE | ID: mdl-28017544

RESUMEN

Signaling networks downstream of receptor tyrosine kinases are among the most extensively studied biological networks, but new approaches are needed to elucidate causal relationships between network components and understand how such relationships are influenced by biological context and disease. Here, we investigate the context specificity of signaling networks within a causal conceptual framework using reverse-phase protein array time-course assays and network analysis approaches. We focus on a well-defined set of signaling proteins profiled under inhibition with five kinase inhibitors in 32 contexts: four breast cancer cell lines (MCF7, UACC812, BT20, and BT549) under eight stimulus conditions. The data, spanning multiple pathways and comprising ∼70,000 phosphoprotein and ∼260,000 protein measurements, provide a wealth of testable, context-specific hypotheses, several of which we experimentally validate. Furthermore, the data provide a unique resource for computational methods development, permitting empirical assessment of causal network learning in a complex, mammalian setting.


Asunto(s)
Biología Computacional/métodos , Perfilación de la Expresión Génica/métodos , Fosfoproteínas/análisis , Algoritmos , Neoplasias de la Mama/metabolismo , Línea Celular Tumoral , Simulación por Computador , Femenino , Redes Reguladoras de Genes/genética , Redes Reguladoras de Genes/fisiología , Humanos , Modelos Biológicos , Fosforilación , Sensibilidad y Especificidad , Transducción de Señal/fisiología
18.
Int J Clin Exp Hypn ; 64(2): 213-24, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26894424

RESUMEN

Sexual dysfunction is a common problem for postmenopausal women. This study, as part of a larger randomized controlled trial, examined the effect of hypnotic relaxation therapy on sexual dysfunction, a secondary study outcome, in postmenopausal women. Sexual function was assessed using the Sexual Activity Questionnaire (SAQ). Significant improvement in sexual pleasure and discomfort were reported following 5 weekly sessions of hypnotic relaxation therapy, compared with those receiving an attention control. Total SAQ scores showed significant improvement in the hypnotic relaxation therapy treatment group while holding baseline SAQ scores constant. Improvements showed a slight increase at the Week 12 follow-up. The results of this analysis provide initial support for the use of hypnotic relaxation therapy to improve sexual function in postmenopausal women.


Asunto(s)
Entrenamiento Autogénico/métodos , Disfunciones Sexuales Psicológicas/terapia , Adulto , Anciano , Femenino , Humanos , Menopausia , Persona de Mediana Edad , Método Simple Ciego , Encuestas y Cuestionarios
19.
Int J Clin Exp Hypn ; 64(1): 75-115, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26599994

RESUMEN

Clinical evidence for the effectiveness of hypnosis in the treatment of acute procedural pain was critically evaluated based on reports from randomized controlled clinical trials (RCTs). Results from the 29 RCTs meeting inclusion criteria suggest that hypnosis decreases pain compared to standard care and attention control groups and that it is at least as effective as comparable adjunct psychological or behavioral therapies. In addition, applying hypnosis in multiple sessions prior to the day of the procedure produced the highest percentage of significant results. Hypnosis was most effective in minor surgical procedures. However, interpretations are limited by considerable risk of bias. Further studies using minimally effective control conditions and systematic control of intervention dose and timing are required to strengthen conclusions.


Asunto(s)
Dolor Agudo/terapia , Hipnosis Anestésica , Hipnosis , Dolor Agudo/etiología , Humanos , Hipnosis/métodos , Hipnosis Anestésica/métodos , Procedimientos Quirúrgicos Operativos/efectos adversos , Procedimientos Quirúrgicos Operativos/psicología
20.
Int J Clin Exp Hypn ; 63(3): 335-45, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25978085

RESUMEN

Assessment of hypnotizability can provide important information for hypnosis research and practice. The Elkins Hypnotizability Scale (EHS) consists of 12 items and was developed to provide a time-efficient measure for use in both clinical and laboratory settings. The EHS has been shown to be a reliable measure with support for convergent validity with the Stanford Hypnotic Susceptibility Scale, Form C (r = .821, p < .001). The current study examined the factor structure of the EHS, which was administered to 252 adults (51.3% male; 48.7% female). Average time of administration was 25.8 minutes. Four factors selected on the basis of the best theoretical fit accounted for 63.37% of the variance. The results of this study provide an initial factor structure for the EHS.


Asunto(s)
Hipnosis , Psicometría/estadística & datos numéricos , Encuestas y Cuestionarios , Adulto , Análisis Factorial , Femenino , Humanos , Masculino , Reproducibilidad de los Resultados
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA