Daniel Medina – författare

The idea for this book arose during the 1985 Gordon Conference on "Mammary Gland Biology". New developments in the methodology of cell biology and the explosive growth of molecular biology had begun to impact upon our understanding of mammary gland growth and function. It seemed a propitious time for summarizing the current status of knowledge of the cell and molecular biology of mammary cancer and for attempting to outline future areas of concern and interest. The reviews presented here were completed by the Fall of 1986. Although new insights will surely continue to emerge, it is hoped that the material in this volume will form not only a current update but a basic core of information for future experiments. We have not attempted to cover all areas of mammary gland transformation. Those areas where recent detailed reviews are already available have been omitted. Also, the areas of normal gland development, cell ultrastructure, hormone responsiveness, chemotherapy and clinical aspects of mammary cancer have not been included. Instead, we have selected those areas where the development of new methodology, reagents and results have led to new ideas about mammary gland function and development as they are related to neoplasia.

The idea for this book arose during the 1985 Gordon Conference on "Mammary Gland Biology". New developments in the methodology of cell biology and the explosive growth of molecular biology had begun to impact upon our understanding of mammary gland growth and function. It seemed a propitious time for summarizing the current status of knowledge of the cell and molecular biology of mammary cancer and for attempting to outline future areas of concern and interest. The reviews presented here were completed by the Fall of 1986. Although new insights will surely continue to emerge, it is hoped that the material in this volume will form not only a current update but a basic core of information for future experiments. We have not attempted to cover all areas of mammary gland transformation. Those areas where recent detailed reviews are already available have been omitted. Also, the areas of normal gland development, cell ultrastructure, hormone responsiveness, chemotherapy and clinical aspects of mammary cancer have not been included. Instead, we have selected those areas where the development of new methodology, reagents and results have led to new ideas about mammary gland function and development as they are related to neoplasia.

Todos tenemos la necesidad de creer, de confiar en los dems, pero es casi imposible cuando la lealtad no forma parte del carcter de la gente, la lealtad es un bien muy preciado que se deja ver, se expresa de diversas formas, una es la palabra comprometida, la lealtad es fiel, no se permite el obviar las cosas a las que se ha comprometido, todas sus acciones estn emparentadas con ese valor. La ausencia de lealtad nos provoca cambios de actitudes, nos vuelve desconfiados, estamos esperando que nos fallen, nos traicionen o nos estafen, las sociedades de este tiempo nada hacen con la palabra empeada, parece que las palabras han perdido el valor, nadie respeta lo que promete o las promesas son solo momentneas y estn sujetas a cambios permanentes. La lealtad como norma de vida marca la diferencia en la gente, un leal siempre ser respetado, valorado y hasta recomendado, tambin ser combatido porque se sale de la norma pero creo el mejor camino es ser leal a los valores fundamentales de la vida, como el ser honesto, transparente, noble y respetuoso. La lealtad es una virtud que se va adquiriendo a medida que vamos madurando y comprendiendo el valor que tiene la vida, y honrar la vida es vivirla a pleno y con una conciencia limpia.