Wednesday, November 4, 2009

Plastics Chemical Tied to Aggression in Young Girls

TUESDAY, Oct. 6 (HealthDay News) -- In the latest study to suggest an association between the plastics chemical bisphenol A (BPA) and adverse effects on humans, researchers report that BPA may affect the behavior of little girls. Girls exposed to higher levels of BPA displayed more "externalizing" behaviors, such as aggression and hyperactivity, according to the study, which is published in the Oct. 6 online edition of Environmental Health Perspectives.
"We found almost all of the women [in the study] had detectable levels of bisphenol A in at least one of the tests, and elevated concentrations were associated with externalizing behaviors in female children," said study author Joe Braun, a graduate student and research assistant in epidemiology at the Gillings School of Global Public Health at the University of North Carolina at Chapel Hill.
Not everyone agreed with the study's conclusions, however.
"This type of study has no capability to establish cause and effect, only associations. At the end of the study, the authors even point out that the results 'should be viewed cautiously,'" noted Steven Hentges, executive director of the polycarbonate/BPA global group at the American Chemistry Council, which represents the chemicals industry.
BPA is a commonly used chemical that's found in hard plastics and epoxy resins. The chemical is used in water bottles, food containers, infant bottles and medical devices. BPA may also be found in the lining of canned foods. Most human exposure comes through diet when the chemical leaches into food and beverages from the containers, according to the U.S. National Institute of Environmental Health Sciences. Previous studies suggest that more than 90 percent of people in the United States have detectable levels of BPA in their urine.
Animal studies of the chemical have found an association between BPA and adverse neurodevelopmental effects on fetuses and newborns, according to background information in the study. The current study included 249 pregnant women from Cincinnati, Ohio, who were part of another study that was evaluating interventions to reduce lead levels. Urine samples were collected when the mothers were 16 and 26 weeks pregnant, as well as within 24 hours of birth.
Ninety-nine percent of the women had at least one urine sample with detectable levels of BPA, according to the study. The children's behavior was reported by the parents using a standardized questionnaire when the children were 2 years old.
After controlling the data to account for numerous possible confounding factors, such as maternal age, race, education and income levels, the researchers didn't find an association between BPA and externalizing behaviors. However, when they split the data by sex, they noted an association between higher BPA levels and more externalizing behaviors in girls.
Braun said that the researchers don't know why there was a difference in the findings by sex, nor did they know what the potential biological mechanism might be that could cause an increase in aggressive behaviors after BPA exposure.
The researchers did not adjust the data in this study to account for lead exposure, diet or after-birth exposure to BPA. Braun said that the researchers did test additional statistical models to account for lead exposure that weren't included in the paper, and he said that when this was done lead levels didn't change their findings.
However, "once you consider the limitations of the study, as the authors carefully do, there's significant potential for false positives," contended Hentges.
Braun said that parents who are worried about the potential for harm can look for products that specify that they're "BPA-free." He said the chemical is found in many different consumer products and there are no requirements that it be listed on a label, so if a product doesn't clearly state that it doesn't contain BPA, it may be made with the chemical. One known source of BPA is plastics with the number 7 in the recycling symbol.
More information
Learn more about bisphenol A from the U.S. National Institute of Environmental Health Sciences.

SOURCES: Joe Braun, M.S.P.H., graduate student, research assistant, department of epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, N.C.; Steven Hentges, executive director, polycarbonate/BPA global group, American Chemistry Council, Arlington, Va.; Oct. 6, 2009, Environmental Health Perspectives, online

Wednesday, October 14, 2009

Embryo Have Cancer Cells Inherited Risk from Mother

Researchers proven there have possibility embryo get cancer cells inherited from their mother even amount of this cases is very rare. Whereas, according to theory, body immunity system could be prevented cancer cells entranced to embryo blood circulation system through placenta. BBC New sites that quoted England researchers team study result from National Academy of Sciences on Tuesday October 13, 2009 mentioned there are 17 mother and their child cases suffering the same cancer (usually leukemia or melanoma). This research focused on a mother and child that suffering leukemia. Researchers used genetic finger print checking technique to proven embryo leukemia cells come from their mother. The result, both leukemia cells have the same cancer cell that already mutated. Embryo immunity system was had no ability to recognized that cancer cells as stranger thing. This impacted when cancer cells entranced there is nothing resistance at all. Researcher Team Leader, Professor Mel Greave from Institute of Cancer Research said that cancer cells can be across placenta and easily entranced to embryo because considered not dangerous by body immunity system. “But this case is very rare so the possibility cancer cells inherited to embryo from their mother still little,” says Greave.

Sunday, October 4, 2009

Smoking When Pregnant Effected Fetus Brain


Women who smoking when pregnant have risk make their children get mental disorders syndrome likes delusion and hallucination. A survey in England showed pregnant smoking women around 20 percent easier get the problem. That problem will increase till 84 percent if their smoked till 20 cigarettes or more in one day. Research done by Cardiff University, Nottingham University, Bristol University, and Warwick University is part of long term study of Avon Longitudinal Study of Parents and Children that researched how become genetic and environment influenced and effected to healthy. One part of that long term survey done to 12 years old children group observation who their mother smoking when pregnant. The children observation to know how far their get hallucination and when that happened. Furthermore, team also observation possibility of alcohol or marijuana consumption by their mother. Leader of researcher team, Stanley Zammit, said that tobacco exposed can effect to fetus brain growth. Study result at least make government to strengthen smoking banned at pregnancy period but many women ignored that proven in England. About 15 of pregnant women observation can’t stop their bad habit that is smoking.

Thursday, October 1, 2009

Hit Child Can Cause Aggressive Behavior

Hit one year old children can cause more aggressive behavior and cognitive developed not very well in the next two years according to researchers from Duke University, University of Missouri Columbia, Harvard University, and University of North Carolina at Chapel Hill. According to researcher, verbal punishment no connected with aggressiveness, especially if followed emotion support from another person. In study, researcher interviewed and observed more than 2,500 white skin, African-American, and poor Mexican American mothers and their children with age 1, 2, and 3 years old. Mothers reported how many times people at home hit their children in one weeks and researchers do observation at home how often mother scolding, snap, or makes negative comments. This result found significant African American children is more often get hit and verbal punishment than another. Child who get more often hit when their child at one year old become more aggressive behavior when at two years old and get lower point on test to measured their cognitive skill when their at three years. This result published in Child Development journal.

Thursday, August 6, 2009

When Baby Starting Eat Egg?

Baby can be eat if his age over 6 months, that is since they introduce to solid food. For the first time, you just can give your baby only the yellow part, because the white part worries can be trigger their allergic. If your baby not showed allergy sign so you can give white part of egg if his age is one year. On the contrary if your baby show allergic sign so it is better you delay canceled your expectation fisrt to give egg to your baby until he age is one year. Egg contains many protein, Phosfour (P), zinc (Fe), Vitamin B12, Vitamin A, Vitamin D, pantotenat acid, colesterol (especilly the yellow part), riboflavin, and fat. Because of that, egg also good consumpted by babies and children for their growing and developing process. Beside that, egg ease to absorbed. Dish that suitable for baby is to put in the yellow egg in milk podridge or steam rice in a certain way with vegetables.

7 Cause Babies is Uneasy to Sleep

1. His teeth is growing (teething)
2. Hungry, wants mother’s milk or formulated milk.
3. Too much sleep in the day.
4. Get ear infectiom
5. Too hot or cold temperature in room
6. Stomachache or colic
7. He knows you are in bad mood situation

Smile Baby Effect

Baby smile can gives pleasure for his mother is equal with sexual pleasure, even drug sensation. This incridible baby effect at this time has been observation by Dr Lane Strathearn from Baylor College of Medicine, Texas, United States of America. Added information, seven days old baby can knowing his mother voice, and 14 days old or one week later baby just can recognize his father voice. Almost forget, approximately 50 percent new born babies has jaundice in first week. For more info you can see in this site