09. Cm Cabrera
نویسندگان
چکیده
El cáncer de colon es una enfermedad frecuente que puede ser esporádica o familiar. La inactivación del gen supresor de tumores APC (adenomatous polyposis coli) se ha encontrado en más del 80% de los casos descritos de tumores colorrectales, apareciendo como una alteración temprana durante el desarrollo del pólipo adenomatoso. La inactivación del gen APC no es únicamente crítica en el proceso de iniciación y desarrollo del tumor, sino que igualmente la inestabilidad cromosómica (CIN) es otra característica dependiente al menos en parte de la presencia de mutaciones en APC.
منابع مشابه
Choosing the correct elliptic curve in the CM method
We give an elementary way to distinguish between the twists of an ordinary elliptic curve E over Fp in order to identify the one with p+1−2U points, when p = U2 + dV 2 with 2U, 2V ∈ Z and E is constructed using the CM method for finding elliptic curves with a prescribed number of points. Our algorithms consist in most cases of reading off simple congruence conditions on U and V modulo 4.
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