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1.
J Appl Gerontol ; 36(1): 29-55, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26491029

RESUMEN

This study examines how older adults learn to use tablet computers. Learning to use new technologies can help older adults to be included in today's digital society. However, learning to use new technologies is not always easy, especially for older adults. This study focuses on how older adults learn to use a specific technology, tablet computers, and the role that social support plays in this process. Data for this project are from 21 in-depth interviews with individuals who own tablet computers. We examine how older adults engage with tablet devices and increase their digital literacy. The findings suggest that, for older adults to start to use tablets, social support plays an important role. In addition, a key way that many participants report gaining expertise with the technology is through "playing around" with the tablets. Suggestions for how to help older adults learn to use new technologies are detailed.


Asunto(s)
Alfabetización Digital , Computadoras de Mano , Aprendizaje , Apoyo Social , Anciano , Anciano de 80 o más Años , Brecha Digital , Femenino , Estudios de Seguimiento , Humanos , Vida Independiente , Entrevistas como Asunto , Masculino , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Autoeficacia
2.
J Clin Oncol ; 23(9): 1875-84, 2005 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-15699481

RESUMEN

PURPOSE: Preclinical studies indicate that the cyclin-dependent kinase and protein kinase C inhibitor 7-hydroxystaurosporine (UCN-01) potentiates the cytotoxic effects of fluorouracil (FU). We designed a phase I clinical trial of FU in combination with UCN-01. PATIENTS AND METHODS: FU was administered as a weekly 24-hour infusion. Doses were escalated in successive cohorts according to a modified Fibonacci design. UCN-01 was administered once every 4 weeks, immediately after disconnection from FU, at a dose of 135 mg/m(2) over 72 hours in cycle 1 and 67.5 mg/m(2) over 36 hours in subsequent cycles. FU and UCN-01 pharmacokinetics were obtained on all patients, and thymidylate synthetase (TS) activity was measured in peripheral-blood mononuclear cells by reverse-transcriptase polymerase chain reaction. RESULTS: We escalated the weekly FU dose to 2,600 mg/m(2) in combination with once a month infusions of UCN-01. Dose-limiting toxicity included arrhythmia and syncope. Other toxicities included hyperglycemia, headache, and nausea and vomiting. The mean maximal plasma concentration of UCN-01 was 33.5 micromol/L. There was significant interpatient variability, which correlated with plasma concentrations of alpha-1 acid glycoprotein. FU was rapidly cleared and the dose had no effect on the area under the curve of UCN-01. Changes in TS expression were detectable in peripheral-blood mononuclear cells after administration of UCN-01 but did not correlate with toxicity or activity. We observed no objective response, although seven patients had stable disease, six of whom had received prior fluoropyrimidines. CONCLUSION: The combination of weekly infusions of FU and monthly UCN-01 can be administered safely and warrants further study in phase II trials. The recommended phase II dose of FU in combination with monthly UCN-01 is 2,600 mg/m(2).


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias/tratamiento farmacológico , Estaurosporina/análogos & derivados , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Área Bajo la Curva , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Fluorouracilo/farmacocinética , Semivida , Humanos , Infusiones Intravenosas , Masculino , Persona de Mediana Edad , Inhibidores de Proteínas Quinasas/administración & dosificación , Inhibidores de Proteínas Quinasas/efectos adversos , Inhibidores de Proteínas Quinasas/farmacocinética , Estaurosporina/administración & dosificación , Estaurosporina/efectos adversos , Estaurosporina/farmacocinética , Resultado del Tratamiento
3.
Clin Cancer Res ; 11(10): 3836-45, 2005 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-15897584

RESUMEN

PURPOSE: Flavopiridol potently enhances the effect of irinotecan with cures in colorectal cancer xenografts, and is associated with modulation of several molecular targets, including p21, Differentiation-related gene 1 (Drg1), and p53. We initiated a phase I trial of the sequential combination of irinotecan followed by flavopiridol to determine the maximal tolerated dose of this combination therapy. PATIENTS AND METHODS: Forty-five patients with advanced solid tumors were enrolled. Irinotecan was administered first (100 or 125 mg/m(2)) followed 7 hours later by escalating flavopiridol (10-70 mg/m(2)) given weekly over 1 hour for 4 of 6 weeks. At the maximal tolerated dose, the pharmacokinetic analysis was expanded and pre- and posttreatment tumor biopsies were done. RESULTS: At irinotecan 100 mg/m(2), dose-limiting diarrhea and myelosuppression were observed with flavopiridol 70 mg/m(2). At irinotecan 125 mg/m(2), we observed dose-limiting hyperbilirubinemia, fatigue, and myelosuppression at flavopiridol 60 mg/m(2). Peak flavopiridol concentrations of >/=2 mumol/L were achieved above flavopiridol 50 mg/m(2). No significant pharmacokinetic interactions with irinotecan were noted. Baseline serum bilirubin significantly predicted cycle 1 dose-limiting toxicity and neutropenia. We observed partial responses in three patients and prolonged stable disease (i.e., >6 months) in 36% of patients including adrenocortical cancer and hepatocellular cancer. Patients with wild-type p53 and either no change or low posttreatment biopsy p21 and a decrease in Drg1 expression showed stable or responsive disease to the combination therapy. CONCLUSIONS: The recommended phase II dose with irinotecan 100 mg/m(2) is flavopiridol 60 mg/m(2) and with irinotecan 125 mg/m(2) is flavopiridol 50 mg/m(2). Toxicity can be predicted by baseline bilirubin. Clinical activity is encouraging and may correlate to changes in p21 and Drg1 levels in patients with wild type p53 tumors following therapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Camptotecina/análogos & derivados , Neoplasias/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Bilirrubina/análisis , Camptotecina/administración & dosificación , Camptotecina/efectos adversos , Camptotecina/farmacocinética , Proteínas de Ciclo Celular/biosíntesis , Inhibidor p21 de las Quinasas Dependientes de la Ciclina , Esquema de Medicación , Interacciones Farmacológicas , Femenino , Flavonoides/administración & dosificación , Flavonoides/efectos adversos , Flavonoides/farmacocinética , Humanos , Péptidos y Proteínas de Señalización Intracelular , Irinotecán , Masculino , Dosis Máxima Tolerada , Persona de Mediana Edad , Piperidinas/administración & dosificación , Piperidinas/efectos adversos , Piperidinas/farmacocinética , Resultado del Tratamiento , Proteína p53 Supresora de Tumor/biosíntesis
4.
Educ Gerontol ; 41(10): 695-709, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26877583

RESUMEN

Using information and communication technologies (ICTs) can improve older adults' quality of life. ICT use is associated with decreased feelings of loneliness and depression, along with increased feelings of independence and personal growth. However, limited access and low technological self-efficacy are key reasons why some groups, especially older adults, are excluded from being fully engaged in the digital world. In this study, we focus on older adults' technological self-efficacy, which is related to their actual use of technology and the second level digital divide. Specifically, we examine: 1) how older adults decide to use a new technology, tablet computers; 2) how they conquer the barrier of technological self-efficacy through using tablets; and 3) the impacts of using this new technology in their lives. Twenty-one in-depth interviews were conducted with older adults residing in independent living communities in a medium-sized city in the Deep South region of the United States. Observational and enactive learning played important roles for older adults in using tablets. Seeing others use tablets, getting recommendations from family members, or having tablets given to them were the primary reasons they started to use tablet computers. The ease of use feature of tablets helped solve the problem of lacking technological self-efficacy. Using tablets helped increase a sense of connectedness. Tablet computers may be one way to increase digital inclusion among older adults.

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