Featured Research

from universities, journals, and other organizations

African-American infants at increased risk from tobacco smoke exposure

Date:
May 3, 2010
Source:
Cincinnati Children's Hospital Medical Center
Summary:
Low levels of prenatal tobacco smoke exposure are associated with a higher risk of developmental problems for African American children than white children, according to new research.

Low levels of prenatal tobacco smoke exposure are associated with a higher risk of developmental problems for African American children than white children, according to new research from Cincinnati Children's Hospital Medical Center.

The findings were presented May 1 at the annual meeting of the Pediatric Academic Societies in Vancouver, Canada.

Prenatal exposure to tobacco smoke has already been linked to prematurity and cognitive defects in young children. Previous research has also shown racial differences in metabolism of nicotine among adolescents, adults, and pregnant women. The current study focused on the developmental differences between 242 white and black children at 1 and 2 years of age. The study was limited to children whose mothers had measureable levels of cotinine -- a biological byproduct of nicotine -- in their blood during pregnancy.

"We found that low-level prenatal tobacco exposure was associated with deficits in both motor and cognitive development, but only for black children," said Kimberly Yolton, Ph.D., a developmental psychologist in the division of General and Community Pediatrics at Cincinnati Children's and lead investigator on the study.

The children were assessed for cognitive and motor development using The Bayley Scales of Infant Development (Second Edition). Although the researchers found no statistically significant association between prenatal tobacco exposures and lower scores in white children, Dr. Yolton stressed expectant white mothers should still refrain from smoking.

"All women should be aware of the dangers of tobacco smoke to themselves and their developing babies, but our research suggests African American women should be particularly careful during pregnancy," Dr. Yolton said.

Interestingly, although only 30 percent of mothers in the study reported any exposure to tobacco smoke -- either by smoking themselves or through second-hand exposure -- all had measurable cotinine levels in their blood. Dr. Yolton said this indicates expectant mothers and their children may be at risk of exposure even when they don't realize it.

"And when pregnant mothers do smoke, the nicotine easily passes through the placenta to the developing baby, and nicotine concentrations are 15 times higher in the baby's blood than the mother's," she added.

Dr. Yolton said future research efforts are aimed at better understanding the metabolic and molecular reasons for tobacco smoke's harmful affects on infants and children as well as the racial disparities associated with exposure.


Story Source:

The above story is based on materials provided by Cincinnati Children's Hospital Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

Cincinnati Children's Hospital Medical Center. "African-American infants at increased risk from tobacco smoke exposure." ScienceDaily. ScienceDaily, 3 May 2010. <www.sciencedaily.com/releases/2010/05/100503174028.htm>.
Cincinnati Children's Hospital Medical Center. (2010, May 3). African-American infants at increased risk from tobacco smoke exposure. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2010/05/100503174028.htm
Cincinnati Children's Hospital Medical Center. "African-American infants at increased risk from tobacco smoke exposure." ScienceDaily. www.sciencedaily.com/releases/2010/05/100503174028.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins