Health Highlights: Feb. 17, 201402/17/14
Here are some of the latest health and medical news
developments, compiled by the editors of HealthDay:
Number of Fertility Treatment Babies in U.S. Increasing
A record number of babies born in the United States in 2012 were
conceived using fertility treatment, according to a new study.
In vitro fertilization (IVF) led to the birth 61,740 babies that
year, which was 1.5 percent of all births in the nation. There were
2,000 more IVF-associated births in 2012 than in 2011, the
The Society for Assisted Reproductive Technology study also said
that a growing number of women are using one embryo at a time in
order to prevent multiple births, which can increase the risk of
premature birth and other problems.
Four percent of women younger than 35 used single embryos in
2007, compared with 15 percent in 2012, the
Scientists Grow Human Lungs in Lab
U.S. researchers who were the first to successfully grow human
lungs in the lab say their breakthrough could eventually save the
lives of people waiting for a lung transplant.
The team at the University of Texas Medical Branch in Galveston
started with a damaged lung,
"We removed all the cells, all the material in it, and just left the skeleton of the lung, or the scaffold, behind -- the pieces of the lungs that are not cells," team leader Dr. Joan Nichols explained. "And then we added back cells from another lung that couldn't be used for transplant but still had some viable cells in it."
The scientists grew their first human lungs in the lab last year
and said they hope to transplant the first set of lab-grown lungs
into animals this year or next,
But it could be five to 10 years, or even longer, before it
might be possible to use lab-grown lungs to save the lives of
people who need new lungs, the scientists said.
Currently, more than 1,600 people in the United States are
waiting for a lung transplant,
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