RESUMO
Objective To verify the effect of bathing on the body temperature of preterm infants (PTI). Method Systematic review conducted in the following bibliographic electronic sources: Biblioteca Virtual em Saúde/Lilacs (BVS), Cumulated Index of Nursing and Allied Health Literature (CINAHL), Cochrane Library, Google Scholar, PubMed, SCOPUS and Web of Science, using a combination of search terms, keywords and free terms. The review question was adjusted to the PICO acronym (Patient/population, Intervention, Control/comparative intervention, Outcome). The selected publications were evaluated according to levels of evidence and grades of recommendation for efficacy/effectiveness studies, as established by the Joanna Briggs Institute. Results Eight hundred and twenty four (824) publications were identified and four studies met the inclusion criteria, of which three analyzed the effect of sponge baths and the effect of immersion baths. Conclusion Sponge baths showed a statistically significant drop in body temperature, while in immersion baths the body temperature remained stable, although they studied late preterm infants. .
Objetivo Determinar el efecto del baño en la temperatura corporal del recién nacido prematuro. Método Revisión sistemática realizada en las fuentes bibliográficas electrónicas BVS, CINAHL, Cochrane Library, Google Scholar, PubMed, Scopus y Web of Science. Las búsquedas fueron realizadas mediante combinación de descriptores, palabras clave y términos libres y se ajustó la cuestión de la revisión a la estrategia PICO. Las publicaciones seleccionadas se evaluaron de acuerdo con los niveles de evidencia y grados de recomendación para los estudios de eficacia/efetividad establecidos por el Instituto Joanna Briggs. Resultados Se identificaron 824 publicaciones y cuatro atendieron a los criterios de inclusión, de los cuales, tres analizaron el efecto del baño de esponja y uno el efecto del baño de inmersión. Conclusión El baño de esponja mostró una disminución estadísticamente significativa en la temperatura corporal, en cuanto que el baño de inmersión, la temperatura corporal se mantuvo estable, aunque el estudio haya sido realizado con recién nacidos prematuros tardíos. .
Objetivo Verificar o efeito do banho na temperatura corporal de recém-nascidos pré-termo (RNPT). Método Revisão sistemática realizada nas fontes eletrônicas bibliográficas BVS/Lilacs, Cumulative Index of Nursing and Allied Health (CINAHL), Cochrane Library, Google Scholar, PubMed, SCOPUS e Web of Science, utilizando a combinação de descritores, palavras-chave e termos livres. A pergunta da revisão foi ajustada ao acrônimo PICO (Paciente/população, Intervenção, Intervenção controle/comparativa, Desfecho analisado). As publicações selecionadas foram avaliadas de acordo com os níveis de evidência e graus de recomendação para estudos de eficácia/efetividade estabelecidos pelo Instituto Joanna Briggs. Resultados Foram identificadas 824 publicações e quatro estudos atenderam aos critérios de inclusão, dos quais três analisaram o efeito do banho de esponja e um o efeito do banho de imersão. Conclusão O banho de esponja mostrou queda da temperatura corporal estatisticamente significante, enquanto no banho de imersão a temperatura corporal permaneceu estável, embora tenham sido estudados RNPT tardios. .
Assuntos
Humanos , Antibióticos Antineoplásicos/farmacocinética , Carcinoma Hepatocelular/metabolismo , Daunorrubicina/farmacocinética , Neoplasias Hepáticas/metabolismo , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Resistência a Múltiplos Medicamentos , Resistencia a Medicamentos Antineoplásicos , Genes MDR , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Fenótipo , Frações Subcelulares/metabolismo , Células Tumorais CultivadasRESUMO
OBJECTIVE: P-glycoprotein (P-gp) expression has been widely observed in normal and neoplastic cells. The physiologic role of P-gp involves hormone and metabolite secretion, bacterial product detoxification, and transport of several drugs to the extracellular space. Multidrug resistance-1 is characterized by drug extrusion through P-gp, reducing the intracellular levels of drugs and diminishing their pharmacological effects. Treatment of immune thrombocytopenic purpura (ITP) includes agents that are substrates of P-gp; hence, the objective of this study was to analyze the functional activity of P-gp in lymphocytes from patients with ITP. PATIENTS AND METHODS: 30 ITP patients (9 refractory, 5 dependent, 14 responders to treatment, and 2 with stable disease) and 25 healthy controls were studied. Peripheral blood mononuclear cells were isolated by gradient centrifugation and incubated with daunorubicin (a fluorescent drug extruded by P-gp). Functional activity of P-gp was analyzed by flow cytometry. Results were expressed as the percentage of lymphocytes able to extrude daunorubicin. RESULTS: ITP patients showed an increased number of lymphocytes with P-gp activity (mean=12.3%+/-16%) when compared to controls (mean=0.87%+/-0.72%) (p<0.05). P-gp function was higher in the refractory group (median=9.4%) than in the treatment-dependent (median=5.4%), responder (median=6.4%), and stable disease (median=5.2%) groups, although no statistical differences were found among them. CONCLUSION: Enhanced P-gp activity in ITP may be related to an unfavorable clinical outcome and poor response to treatment. Furthermore, P-gp function might affect therapeutic requirements for disease control.
Assuntos
Membro 1 da Subfamília B de Cassetes de Ligação de ATP/metabolismo , Linfócitos/química , Púrpura Trombocitopênica Idiopática/patologia , Adolescente , Adulto , Idoso , Doenças Autoimunes/metabolismo , Doenças Autoimunes/patologia , Biomarcadores , Estudos de Casos e Controles , Daunorrubicina/farmacocinética , Feminino , Citometria de Fluxo , Humanos , Linfócitos/metabolismo , Masculino , Pessoa de Meia-Idade , Prognóstico , Púrpura Trombocitopênica Idiopática/metabolismoRESUMO
Acute myelogenous leukemia (AML) blast cells show high-affinity degradation of low-density lipoprotein (LDL), suggesting an increased expression of cellular LDL receptors. LDE is a lipid microemulsion easily synthesized in vitro which is known to mimic the metabolic pathway of LDL. We used LDE as a carrier for daunorubicin and assayed the cytotoxicity of the complex using AML blast cells since RT-PCR analysis showed that AML cells express LDL receptor mRNA. The LDE:daunorubicin complex killed 46.7% of blast cells and 20.2% of normal bone marrow cells (P<0.001; Student t-test). Moreover, this complex destroyed AML blast cells as efficiently as free daunorubicin. Thus, LDE might be a suitable carrier of chemotherapeutic agents targeting these drugs to neoplastic cells and protecting normal tissues.