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The complexity of cancer chemotherapy requires pharmacists be familiar with the complicated regimens and highly toxic agents used. This column reviews various issues related to preparation, dispensing, and administration of antineoplastic therapy, and the agents, both commercially available and investigational, used to treat malignant diseases. Questions or suggestions for topics should be addressed to Dominic A. Solimando, Jr, President, Oncology Pharmacy Services, Inc, 4201 Wilson Blvd #110-545, Arlington, VA 22203, e-mail: OncRxSvc@comcast.net; or J. Aubrey Waddell, Professor, University of Tennessee College of Pharmacy; Oncology Pharmacist, Pharmacy Department, Blount Memorial Hospital, 907 E. Lamar Alexander Parkway, Maryville, TN 37804, e-mail: waddfour@charter.net.
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Chronic nonmalignant pain, which affects millions of people, is the most common reason patients seek medical care. Both current and potential opioid analgesics are discussed, along with new technologies used to prevent abuse.
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In Rat-1 fibroblasts and ovarian surface epithelial cells, extracellular calcium induces a proliferative response which appears to be mediated by the G-protein coupled calcium-sensing receptor (CaR), as expression of the nonfunctional CaR-R795W mutant inhibits both thymidine incorporation and activation of the extracellular-regulated kinase (ERK) in response to calcium. In this report we utilized CaR-transfected HEK293 cells to demonstrate that functional CaR is necessary and sufficient for calcium-induced ERK activation. CaR-dependent ERK activation was blocked by co-expression of the Ras dominant-negative mutant, Ras N17, and by exposure to the phosphatidyl inositol 3' kinase inhibitors wortmannin and LY294002. In contrast to Rat-1 fibroblasts, CaR-mediated in vitro kinase activity of ERK2 was unaffected by tyrosine kinase inhibitor herbimycin in CaR-transfected HEK293 cells. These results suggest that usage of distinct pathways downstream of the CaR varies in a cell-type specific manner, suggesting a potential mechanism by which activation of the CaR could couple to distinct calcium-dependent responses.
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Sistema de Sinalização das MAP Quinases , Proteínas Quinases Ativadas por Mitógeno/metabolismo , Receptores de Detecção de Cálcio/fisiologia , Animais , Benzoquinonas , Células Cultivadas , Células Epiteliais/enzimologia , Feminino , Fibroblastos/enzimologia , Vetores Genéticos/genética , Lactamas Macrocíclicas , Proteínas Quinases Ativadas por Mitógeno/genética , Fosfatidilinositol 3-Quinases/metabolismo , Inibidores de Fosfoinositídeo-3 Quinase , Plasmídeos/genética , Proteínas Tirosina Quinases/metabolismo , Quinonas/farmacologia , Ratos , Receptores de Detecção de Cálcio/genética , Rifabutina/análogos & derivados , Proteínas ras/genética , Proteínas ras/metabolismoAssuntos
Promoção da Saúde , Fumar , Local de Trabalho , Humanos , Saúde Ocupacional , Estados UnidosRESUMO
BACKGROUND: Global positioning systems (GPS) have emerged as a research tool to better understand environmental influences on physical activity. This study examined the feasibility of using GPS in terms of perceived acceptability, barriers, and ease of use in a racially/ethnically diverse sample of lower socioeconomic position (SEP). METHODS: Data were from 2 pilot studies involving a total of 170 African American, Hispanic, and White urban adults with a mean (standard deviation) age of 47.8 (±13.1) years. Participants wore a GPS for up to 7 days. They answered questions about GPS acceptability, barriers (wear-related concerns), and ease of use before and after wearing the GPS. RESULTS: We found high ratings of GPS acceptability and ease of use and low levels of wear-related concerns, which were maintained after data collection. While most were comfortable with their movements being tracked, older participants (P < .05) and African Americans (P < .05) reported lower comfort levels. Participants who were younger, with higher education, and low incomes were more likely to indicate that the GPS made the study more interesting (P < .05). Participants described technical and wear-related problems, but few concerns related to safety, loss, or appearance. CONCLUSIONS: Use of GPS was feasible in this racially/ethnically diverse, lower SEP sample.
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Coleta de Dados/instrumentação , Exercício Físico , Sistemas de Informação Geográfica/instrumentação , Percepção , População Urbana , Adulto , Fatores Etários , Meio Ambiente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Áreas de Pobreza , Grupos Raciais/estatística & dados numéricos , Fatores SocioeconômicosRESUMO
Despite growing evidence of the direct and indirect effects of the built environment on public health, planners, who shape the built environment, and public health professionals, who protect the public's health, rarely interact. Most public health professionals have little experience with urban planners, zoning boards, city councils, and others who make decisions about the built environment. Likewise, few planners understand the health implications of design, land use, or transportation decisions. One strategy for bridging this divide is the development of interdisciplinary courses in planning and public health that address the health implications of the built environment. Professional networking and Internet-based searches in 2007 led to the identification of six primarily graduate-level courses in the U.S. that address the links between the built environment and public health. Common content areas in most of the identified courses included planning and public health histories, health disparities, interdisciplinary approaches, air and water quality, physical activity, social capital, and mental health. Instructors of these courses collaborated on course content, assignments, and evaluations to develop a model curriculum that follows an active learning-centered approach to course design. The proposed model curriculum is adaptable by both planning and public health departments to promote interdisciplinary learning. Results show that students gain planning and public health perspectives through this instruction, benefiting from active-learning opportunities. Faculty implementation of the proposed interdisciplinary model curriculum will help bridge the divide between the built environment and public health and enable both planners and public health professionals to value, create, and promote healthy environments.