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A group of researchers has determined that paternal genes can have an impact on the degree of care and love of mothers, before and after childbirth, according to a study published today in the journal. A team from Cardiff University in Wales has been studying for years the hormonal signals emitted by the placenta during the pregnancy to determine the degree of influence of the genetic load paternal.
] The developing fetus has two copies of the gene Phlda2, but unlike most, only one copy of Phlda2 is active.
This is due to an evolutionary phenomenon called genomic impression, by which only the copy of the gene of one of the parents is activated
Using genetically modified mice, the researchers wondered what which happened if both copies of the fetal [1945] 9008] Phlda2 gene were active, ie, "maternalized" or if both were inactive, in a state " paternalised, "according to the authors.
The team found that mothers with fetuses with more activity from Phlda2 " treated and treated less for their puppies and instead of focused on nest building 19659003] In contrast, mothers with "paternalised" fetuses spent more time feeding their puppies and less household chores.
Authors have also shown corresponding changes in two regions of the mother's brain: the hypothalamus and the hippocampus
This finding is important, according to the researchers, because it suggests that the father, by making his gene Phlda2 inactive in the fetus, may even affect the nutritional behavior of the mother after n
The authors badume that this may be relevant to humans, since levels of genetic activity Phlda2 vary in human pregnancies and are inversely correlated with placental hormones.
Changes in the mother's priorities during pregnancy and after birth are critical to the baby's well-being and mental health for life. EFE
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