Posted on 04/17/2014 6:11:13 AM PDT by Scoutmaster
A new Johns Hopkins study discovers an association between prenatal exposure to antidepressant medications, autism spectrum disorder (ASD), and developmental delays (DD) in boys.
Researchers from the Bloomberg School of Public Health found that early prenatal exposure to selective serotonin reuptake inhibitors (SSRIs) — commonly prescribed for depression, anxiety, and other disorders — increased the risk for ASD three-fold.
Common SSRIs include citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac), paroxetine (Paxil, Pexeva), and sertraline (Zoloft).
The study of 1,000 mother-child pairs is published in the online edition of Pediatrics. In the study, investigators analyzed data from large samples of ASD and DD cases, and population-based controls.
Importantly, researchers used a uniform protocol to confirm ASD and DD diagnoses by trained clinicians using validated standardized instruments.
The study included 966 mother-child pairs from the Childhood Autism Risks from Genetics and the Environment (CHARGE) Study, a population-based case-control study based at the University of California at Davis’ MIND Institute.
The researchers broke the data into three groups: Those diagnosed with autism spectrum disorder (ASD), those with developmental delays (DD), and those with typical development (TD).
The children ranged in ages two to five. A majority of the children were boys — 82.5 percent in the ASD group were boys, 65.6 percent in the DD group were boys, and 85.6 percent in the TD were boys.
While the study included girls, the substantially stronger effect in boys alone suggests possible gender difference in the effect of prenatal SSRI exposure.
“We found prenatal SSRI exposure was nearly three times as likely in boys with ASD relative to typical development, with the greatest risk when exposure took place during the first trimester,” said Li-Ching Lee, Ph.D., Sc.M.
“SSRI was also elevated among boys with DD, with the strongest exposure effect in the third trimester.”
“Serotonin is critical to early brain development; thus, exposure during pregnancy to anything that influences serotonin levels can have potential effect on birth and developmental outcomes,” said the researchers.
In the U.S., the prevalence of ADS continues to rise. According to the Centers for Disease Control and Prevention, an estimated one in 68 children in the U.S. is identified with ADS, and it is almost five times more common among boys than girls.
One may question whether the increased use of SSRI in recent years is a contributor to the dramatic rise of ASD prevalence.
“This study provides further evidence that in some children, prenatal exposure to SSRIs may influence their risk for developing an autism spectrum disorder,” said Irva Hertz-Picciotto, Ph.D., M.P.H.
“This research also highlights the challenge for women and their physicians to balance the risks versus the benefits of taking these medications, given that a mother’s underlying mental-health conditions also may pose a risk, both to herself and her child.”
Regarding treatment, the authors note that maternal depression itself carries risks for the fetus, and the benefits of using SSRI during pregnancy should be considered carefully against the potential harm.
The researchers also note that large sample studies are needed to investigate the effects in girls with ASD.
Limitations of the study acknowledged include the difficulty in isolating SSRI effects from those of their indications for use, lack of information on SSRI dosage precluded dose-response analyses, and the relatively small sample of DD children resulted in imprecise estimates of association, which should be viewed with caution.
You know, I now understand the way I am also. I think I will sue your mom too...
My case was first, brother.
Sis, is that you?
Does this prove women who suffer from depression are linked to autism or women being treated for depression? Also, is this only SSRI drugs and not other antidepressants..who funded? New drug company?
But Mom said she liked me best...
We overmedicate people with anti-depressants.
Some things are depressing. Lost your job? Relationship fell apart? Loved one died? Folks need to work through their emotions rather than suppressing them.
I know .... I always understood why too.
I remember that one time where you picked Mom’s tulips and sent me in to give those tulips to Mom. I got a whoopin’ never forgot. You were more intelligent taking the neighbor’s tulips. I tried that once too. Had seen you do it and get away and thought the way to Mom’s heart is stealing the neighbor’s tulips. So there I went to steal the neighbor’s tulips too. But unlike you, I got caught and then another whoopin’. Never could out compete you. {{HUGS}}, I know the truth. You never stole anything. Set myself up for another whoopin’.
This would clearly NOT be a genetic cause.
If this environmental factor is a cause, there are likely other environmental factors that are also causes.
“A woman is suspicious she’s become pregnant way before that point.”
Not if she’s got PCOS.
Nyuk, nyuk, nyuk...
Who knows how long the effects of certain drugs last in the body? It is known that some side-effects outlive the desired purpose of the drug.
Some, if not most, were probably taken before the mother knew she was pregnant
LOL!
Smoking gun from the Me! generation.
Sure, ASD was around before SSRIs. But a 3fold increase is very significant.
They are HIGHLY addictive and they'll definitely blow a circuit, risking death, if they quit cold turkey.
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