Lamaze.org > Online Community > Ask an Expert

 

home | contact us | site map | Login
Ask Henci

Henci GoerFind out what other moms-to-be are asking.  Join in the discussion with Henci Goer, an expert in obstetric research. If you would like to contact Henci outside of the Ask Henci forum, send an email to Goersitemail@aol.com.

If you would like your own username and password for the Ask Henci forum, click here to submit your request.


Reply To Topic Topic: Pitocin
:
Posted By on 28 Jul 2006 10:04 AM
Hello again. Thank you for your response. I have been doing some heavy research on the effects of Pitocin and possible effects on the brain of the mother (or child). Here is some info. I found:


Messing with the balance
http://www.apa.org/monitor/oct02/postpartum.html

Researchers are just beginning to think about how modern medicine might influence hormones' effects on behavior and mood--including possible side effects. Among those researchers is Binghamton University psychologist Diane Witt, PhD, who started this fall as program director for behavioral neuroscience at the National Science Foundation. She's concerned about how alopathic medicine may be messing with women's natural hormonal balance through cultural norms and medical interventions. For example, as many as 73 percent of American women who give birth get pitocin--a synthetic form of oxytocin--to induce or speed along labor. Doctors even give the drug to women who have a Caesarean section to promote contraction of the uterus.

"This is a hormone that we know from animal research is implicated in all kinds of behaviors including learning and memory, sex, social behavior and feeding behavior," says Witt. "We may be changing the mother's or baby's brain when we give oxytocin."

Doctors have long contended that the drug, given intravenously, does not pass across the blood-brain barrier into the mother's brain. But no one knows for sure, says Witt. And until we do, we should be more cautious.

Indeed, Swedish researcher Kerstin Uvnas-Moberg, PhD, finds that exposing animals to extra oxytocin during early life permanently reduces their stress reactivity and lowers their baseline blood pressure. And the University of Illinois's Carter finds that male prairie voles exposed to extra oxytocin on the first day of life tend to form pair bonds more quickly in adulthood. In contrast, males exposed to a single shot with an agent that blocks the effect of oxytocin--something used to prevent premature labor in women--were less parental than normal as adults and, in fact, were aggressive toward pups.

Some of these could be good changes, says Witt, but, she adds, "more is not always better. For a chemical to work, it needs receptors and we know you can downregulate receptors by overloading them. So, if, for example, oxytocin is important for the initiation of maternal behavior, and we blast away that system at the time of labor, we could really be affecting subsequent expression of maternal behavior."

So far, this is all theory. But there's enough suggestive data now that people are starting to take notice. And, say researchers, hopefully that means more funding will follow.


Regarding the blood-brain barrier:
http://www.geroupr.com/stressonthebrain.html

Stress Weakens the Blood-Brain Barrier-Study

Stress can dramatically increase the ability of chemicals to pass through the blood-brain barrier , the complex system of blood vessels that protects the brain from toxins circulating in the bloodstream. During the Gulf War, to protect themselves from chemical and biological weapons, Israeli soldiers took a drug called pyridostigmine. Nearly one-quarter of them complained of headaches, nausea, and dizziness – symptoms which occur only if the drug reaches the brain. Pyridostigmine molecules generally can't get into the brain, so why had the side-effects increased during combat? An Israeli biochemist and physician wondered whether the stress of war might somehow have increased the permeability of the blood-brain barrier. The two researchers took a group of mice and stressed some by dunking them in water. They then injected the rodents with a dye and measured its intensity in the autopsied brains. They found that the dye had passed much more readily into the brains of the stressed animals. The fact that stress can dramatically increase the ability of chemicals to pass through the blood-brain barrier has enormous implications, since many drugs are developed under the assumption that they will not enter the brain.

Stress Compromises the Blood-Brain Barrier
Stress can dramatically increase the ability of chemicals to pass through the blood-brain barrier. During the Gulf War, Israeli soldiers took a drug to protect themselves from chemical and biological weapons. Normally, it should not have crossed the BBB, but scientists learned that the stress of war had somehow increased the permeability of the BBB. Nearly one-quarter of the soldiers complained of headaches, nausea, and dizziness – symptoms which occur only if the drug reaches the brain.

© 2004 - The Franklin Institute Online - All rights reserved.


This is only the tip of the iceberg! I have dozens of other medical files and research that shows basically that the medical community does NOT know if it crosses the blood-brain barrier (and that stressful/painful induced labors can break down this barrier). This is very unnerving to me since so many women are induced by this drug (even in cases where it isn't needed)

If you are interested in more I am compiling my research and will send you my final when it is ready. By: Anonymous
Username: 
Security Code:
Enter the code shown above:
Subject:
RE: Pitocin
Message:

Submit

Cancel

Preview
Subscribe:
Topic Review
Active Forums 4.1
Read the Forum Terms & Conditions

Copyright · All Rights Reserved · 2025 M Street, NW, Suite 800 · Washington, D.C. 20036-3309
800/368-4404 · 202/367-1128 · 202/367-2128 (fax)

Connect with Us

Privacy Statement · Terms of Use