martes, 17 de mayo de 2011

DNA says that sons inherit family fewer genes than previously estimated

Aims: Miller's syndrome and genetic bad disquenia whose probability of suffering is one in 10 000 cases. But having both diseases is most unusual: only one in 10 trillion. In an American marriage. His two sons have both, a very specific case that caught the attention of a team of researchers from the U. Utah and the Institute of Systems Biology, who were recruited to decipher for the first time, the genome of an entire family. and thus clarify the true burden that transmit genetic parents.

Methods: A team of researchers from the U. Utah and the Institute of Systems Biology, who were recruited to decipher for the first time, the genome of an entire family. Decoded the DNA of each member and compared with each other and with the results of the Human Genome Project.

Results: The study showed that the parents carried a copy of the genes responsible for these diseases. They were "off" and therefore not suffering, but when combined in the DNA of their children, triggering its onset.
The investigation also clarified the speed with which genetic mutations are passed from generation to generation. So far, studies in the general population indicated that transferred 75 changes each parent their children, however, this study found that each parent bequeathed only 30 mutations to their offspring. "The mutation rate is less than half of what we thought, "confirms the evolutionary clock.
 
Conclusions: Although many of these conditions pose no risk for themselves, their accumulation over the years increased the likelihood of degenerative diseases such as cancer. The data could also lead to rethink the speed at which the human species is adapted to its environment: "You would think that the evolutionary clock is slower than we thought"
Soledad Berrios, program director of Human Genetics at the University of Chile said that the contribution of this study is the comparison between the DNA of family members: "Let assess specifically what were the inherited genetic combinations that may not necessarily be the same for other subjects of that family or the general population. "
 
Keywords: Human Genetics, Decoded, evolutionary.
Abbreviations: DNA, deoxyribonucleic acid

jueves, 28 de abril de 2011

On maternal mortality....

The "world healt organization" (OMS) defines the mother mortality as: "the death of a woman during his pregnancy, childbirth, or in 42 days after his completion, for any reason related or aggravated by pregnancy, childbirth or puerperium or his managing, but not for accidental reasons". The principal reasons of mother death are the bacterial infections, complications of a provoked abortion, toxemia of the pregnancy, obstetric hemorrhages,ectopic pregnancy, sepsis during the puerperium and embolism of the amniotic liquid. The OMS affirms that an important porcentage or mother deaths con be avoided only by a suitable sanitary attention to the mother gestante, that is why our role as midwife future will be very important because this rate will continue to fall and we are happy that more women.

I am.....

Hi! my name is Barbara Galdames, I have 22 years old and study Midwifery at the University of Chile, I live in the O'Higgins Region, but for reasons currently reside student in the metropolitan region. I hope you can read my blog and will be entertaining and interesting...