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Factor responsible for embryo development could bring new perspective for in vitro fertilization

Factor responsible for embryo development could bring new perspective for in vitro fertilization

Scientists spent more than a year optimizing their techniques using embryos from mice and human embryonic stem cells before starting ot direct work on human embryos. To inactivate OCT4, they used an editing technique called CRISPR / Cas9 to change the DNA of 41 human embryos. After 7 days, the embryo development was stopped and the embryos were analyzed.

The embryos used in the study were donated by couples who underwent IVF treatment, with frozen embryos remaining in storage; however, most were donated by couples who completed their family and wanted their surplus embryos to be used for research. The study was conducted under a rigorous regulatory licensing and research license from the Human Fertilization and Embryology Authority (HFEA), the independent UK Government regulator that oversees the treatment and research of infertility.


More than 50% of five-year-olds have caries in Brazil

More than 50% of five-year-olds have caries in Brazil

Data from the Ministry of Health show that more than 53% of five-year-olds have had caries. The Brazilian Association of Dentistry (ABO), based on information from the Ministry, warns that children at that age already have, on average, more than two cavities in milk teeth. The Association states that the index is low when compared to previous data.

(Family)

Some habits impair the formation of baby teeth

Some habits impair the formation of baby teeth

At this time of the year, when there is a celebration centuries with the same gratitude and reflection the birth of Jesus, I use to write some lines about some questions that can be myths or truths when we think of the teeth in our little ones. Stress is part of the daily life and, thus like sleep, is often unmanageable: when it comes, it gets hard to beat!

(Family)