According to a study just published in the American Journal of Obstetrics and Gynecology this measure prevented childhood lead poisoning and reduced the overall burden of lead toxicity in children. Historically, the city had used an approach that waited until a child tested positive for lead poisoning, and then addressed home lead hazards to prevent future harm.
"Our data provide evidence that a program of prenatal home screening and lead hazard remediation is effective," reports lead author Daniel R. Berg, MD, MPH, of the Department of Internal Medicine, Family Care Health Centers, St. Louis, Missouri. "Children not only had a lower rate of poisoning, but also a lower average blood lead level. This is significant, since decreased intelligence in children is observed at blood lead levels below the government definition of lead poisoning, and no safe threshold of lead exposure in children has been found."
The Heavy Metal Project targeted the homes of pregnant women from a clinic primarily serving African-American women on Medicaid to receive prenatal home inspection and remediation of lead hazards. Home inspections were conducted by certified inspectors, and when lead was found, remediation efforts included paint stabilization, window replacement, and cleaning. Blood lead levels were obtained from 60 children. The average blood lead level among participants was 2.70 micrograms per deciliter (µg/dL) versus 3.63 µg/dL for controls. Blood lead levels greater than 5 µg/dL were found in 13.3% of study participants and 22.5% of controls.
A recent study in Philadelphia that screened and remediated newborns' homes did not show similar results. However, 62.5% of the homes in the St. Louis study underwent remediation, while only 28.2% of the homes in Philadelphia did. The control population in St. Louis was older at the time of blood testing, and St. Louis possibly has a riskier housing environment.
The authors note that ideally, cities would be able to correct lead hazards in all available housing, but this is not financially possible. "Long term solutions will only be possible with well-designed public policies which make use of both private and public monies for building repair, demolition, creation of new affordable housing developments, and targeted home screenings such as the one in our study," says Dr. Berg.
Obstetricians should refer high-risk patients for prenatal home lead hazard screening and remediation, the authors recommend. "Philosophically, this screening is similar to screening pregnancies for potential complications, and newborns for congenital metabolic diseases. Lead poisoning, however, is more prevalent than many disorders," Dr. Berg notes. "Neonatal screening can detect a treatable disease in 1 of 800 newborns, but screening the homes of pregnant women for lead hazards can prevent lead poisoning in 1 of 27 children in the City of St. Louis."
Francesca Costanzo | EurekAlert!
Researchers find trigger that turns strep infections into flesh-eating disease
19.02.2019 | Houston Methodist
Loss of identity in immune cells explained
18.02.2019 | Technische Universität München
Up to now, OLEDs have been used exclusively as a novel lighting technology for use in luminaires and lamps. However, flexible organic technology can offer much more: as an active lighting surface, it can be combined with a wide variety of materials, not just to modify but to revolutionize the functionality and design of countless existing products. To exemplify this, the Fraunhofer FEP together with the company EMDE development of light GmbH will be presenting hybrid flexible OLEDs integrated into textile designs within the EU-funded project PI-SCALE for the first time at LOPEC (March 19-21, 2019 in Munich, Germany) as examples of some of the many possible applications.
The Fraunhofer FEP, a provider of research and development services in the field of organic electronics, has long been involved in the development of...
For the first time, an international team of scientists based in Regensburg, Germany, has recorded the orbitals of single molecules in different charge states in a novel type of microscopy. The research findings are published under the title “Mapping orbital changes upon electron transfer with tunneling microscopy on insulators” in the prestigious journal “Nature”.
The building blocks of matter surrounding us are atoms and molecules. The properties of that matter, however, are often not set by these building blocks...
Scientists at the University of Konstanz identify fierce competition between the human immune system and bacterial pathogens
Cell biologists from the University of Konstanz shed light on a recent evolutionary process in the human immune system and publish their findings in the...
Laser physicists have taken snapshots of carbon molecules C₆₀ showing how they transform in intense infrared light
When carbon molecules C₆₀ are exposed to an intense infrared light, they change their ball-like structure to a more elongated version. This has now been...
The so-called Abelian sandpile model has been studied by scientists for more than 30 years to better understand a physical phenomenon called self-organized...
11.02.2019 | Event News
30.01.2019 | Event News
16.01.2019 | Event News
21.02.2019 | Earth Sciences
21.02.2019 | Trade Fair News
21.02.2019 | Life Sciences