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Copyright of Mendive - Revista de Educacion is the property of Universidad de Pinar del Rio and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Didasc@lia: Didáctica y Educación is the property of Universitaria de Las Tunas, Centro de Estudios de Didactica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Clinical management of breast cancer, making a prognosis and deciding on treatment, currently depend on defining prognostic factors, especially hormone receptors (HR). In addition to confirming the heterogeneity of the disease, these biological parameters are indispensable tools for designing personalized treatment. In this study, 1509 tumors from Cuban women diagnosed with breast cancer were examined. Hormone receptor (HR) expression was determined and correlated with a group of prognostic factors, such as age, tumor size, histological type, nuclear grade, histological grade, number of metastatic axillary lymph nodes, and clinical stage. Estrogen receptor (ER) expression was associated with low nuclear grade and histological grade, and with smaller tumor size (p<0.05). Analysis of age at the time of diagnosis showed that ER expression was greater in patients in the group aged >50 years (p<0.05). In general, ER expression was greater in patients in earlier clinical stages (p<0.05). With regard to HR expression, 53% of tumors in this sample were ER+ and 49% were PR+. In 38% of cases, both receptors were positive and in 28% both receptors proved negative. The ER+/PR- combination was observed in 23% of cases while only 11% exhibited the ER-/PR+ combination. These findings indicate that approximately 72% of the tumors studied expressed some level of hormone dependency. This is the first report of HR expression in Cuba using immunohistochemical techniques and a representative sample of breast tumors diagnosed in different provinces around the country. [ABSTRACT FROM AUTHOR]

El artículo se enfoca en la evaluación del incremento de la población de insectos enemigos naturales en el Huerto de Manacas, Villa Clara, Cuba entre los años 2006 y 2008. Según los autores, se contribuye el incremento de los insectos a los cambios en la administración de los cultivos y de las plagas debido al aumento de la biodiversidad de vegetación en los campos de cultivos. La diversidad de artrópodos con la vegetación contribuyó al aumento de los insectos.