Principled
results in tests on mice suggest that ultrasound used to detect the
fetus may influence the development of mind of the newborn.
Children in mice who were mothers of the ultrasound beam for thirty minutes or more during pregnancy, a few, but calculated from the nerve cells do not pass successfully to the right places in the mind, said Bagesoa Yale University in the coordinates of the National Academy of Sciences.
The researchers said "These results call for further research in the development of minds, whether more or less in the header of inhuman and further studies in epidemiology in humans."
But Dr. Pasko Rakic, head of biology at Yale University and the nerves and the commander of the study, soon to reassure the parents towards the use of ultrasound when required and at times, and the proper methods during pregnancy.
Rakic said, "If I had a daughter was pregnant and will advise her to use ultrasound for medical purposes,"
"I can not not agree with him," This was what Dr. Joshua Copel, Bowsor obstetrics, gynecology and reproductive sciences at Yale University and a spokesman for the Faculty of Medicine of U.S. women and childbirth. Koppel was not common in the study.
Koppel said that in order to minimize the dangers, "you must use the ultrasound for medical reasons only and not for entertainment."
Doctors said that the rats are very different from humans, and therefore must be interpreted n the results of these studies very carefully.
"Methods of transition and transition times for the same with brain cells in the header of such rights are different from mice," said Koppel, "in humans, the time passed in which neurons have longer than mice."
"This study on mice only," Rakic said, "must be applied to the study on animals larger and more uniform with rights,"
A study in 2004 conducted by Australian researchers that ultrasound tests repeated during childbirth did not have any long-term effect on brain function or the growth of children.
The study included more than 2700 children of mothers who have undergone the test of ultrasound. Been tested in children ages 2.3, 5, and 8 years under the supervision of researchers from the University of Western Australia. The study did not point to any significant change among children, which may indicate that ultrasound tests before birth may not have any Tathber on evolution.
In any case, said Koppel, there are good reasons to follow what was said by the American College of Gynecology and Obstetrics, and to suggest that "tests ultrasound should be used, at least for diagnostic information" and that tests should be as short as possible. Pregnancy test conventional ultrasound consumes between 15 and 20 minutes.
"Time is long and must be acknowledged as possible," said Koppel.
While encouraging the American College of Gynecology and Obstetrics tests to be carried out for specific reasons and important, such as a sign of ectopic pregnancy, or abortion, and to make sure of birth defects, many doctors recommend testing at least as a kind of routine protection, the weeks between the eighteenth and Twenty of birth. Association for the March of Dimes Birth Defects estimate the number of American women who, by doing one of the test and ultrasound during childbirth by 70%.
Children in mice who were mothers of the ultrasound beam for thirty minutes or more during pregnancy, a few, but calculated from the nerve cells do not pass successfully to the right places in the mind, said Bagesoa Yale University in the coordinates of the National Academy of Sciences.
The researchers said "These results call for further research in the development of minds, whether more or less in the header of inhuman and further studies in epidemiology in humans."
But Dr. Pasko Rakic, head of biology at Yale University and the nerves and the commander of the study, soon to reassure the parents towards the use of ultrasound when required and at times, and the proper methods during pregnancy.
Rakic said, "If I had a daughter was pregnant and will advise her to use ultrasound for medical purposes,"
"I can not not agree with him," This was what Dr. Joshua Copel, Bowsor obstetrics, gynecology and reproductive sciences at Yale University and a spokesman for the Faculty of Medicine of U.S. women and childbirth. Koppel was not common in the study.
Koppel said that in order to minimize the dangers, "you must use the ultrasound for medical reasons only and not for entertainment."
Doctors said that the rats are very different from humans, and therefore must be interpreted n the results of these studies very carefully.
"Methods of transition and transition times for the same with brain cells in the header of such rights are different from mice," said Koppel, "in humans, the time passed in which neurons have longer than mice."
"This study on mice only," Rakic said, "must be applied to the study on animals larger and more uniform with rights,"
A study in 2004 conducted by Australian researchers that ultrasound tests repeated during childbirth did not have any long-term effect on brain function or the growth of children.
The study included more than 2700 children of mothers who have undergone the test of ultrasound. Been tested in children ages 2.3, 5, and 8 years under the supervision of researchers from the University of Western Australia. The study did not point to any significant change among children, which may indicate that ultrasound tests before birth may not have any Tathber on evolution.
In any case, said Koppel, there are good reasons to follow what was said by the American College of Gynecology and Obstetrics, and to suggest that "tests ultrasound should be used, at least for diagnostic information" and that tests should be as short as possible. Pregnancy test conventional ultrasound consumes between 15 and 20 minutes.
"Time is long and must be acknowledged as possible," said Koppel.
While encouraging the American College of Gynecology and Obstetrics tests to be carried out for specific reasons and important, such as a sign of ectopic pregnancy, or abortion, and to make sure of birth defects, many doctors recommend testing at least as a kind of routine protection, the weeks between the eighteenth and Twenty of birth. Association for the March of Dimes Birth Defects estimate the number of American women who, by doing one of the test and ultrasound during childbirth by 70%.
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