Here are some of the latest health and medical news
developments, compiled by the editors of HealthDay:
Saliva Test May Spot Depression Risk in Male Teens
A simple saliva test might one day spot which teenaged boys are
most likely to develop major depression later in life, British
After testing both boys and girls who had been diagnosed with
mild depression, the researchers found that boys with high levels
of a stress hormone called cortisol were 14 times more likely to be
diagnosed with clinical depression later, according to the
Girls with high cortisol levels were only four times more likely
to receive such a diagnosis during the course of the study, the
At this point in time, there is no biological way to measure
depression risk, the news service reported.
"This is the emergence of a new way of looking at mental illness," study co-author Joe Herbert, of the University of Cambridge, told reporters during a Monday news conference. "You don't have to rely simply on what the patient tells you, but what you can measure inside the patient."
In the study, published online Monday in the
Proceedings of the National Academy of Sciences, saliva
samples were collected from more than 1,800 children aged 12 to 19.
The teens were also questioned about depression symptoms, and all
were followed for at least three years.
Experts told the
APthat male and female hormones might react differently to
cortisol, and that might explain the stronger correlation between
the hormone and depression risk in males.
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
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