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Menyusui melindungi terhadap pencemaran lingkungan

Date:

May 22, 2015

Source:

University of the Basque Country

Summary:

Hidup di kota dengan  lalu lintas kendaraan tingkat tinggi  atau dekat dengan pekerjaan baja  berarti hidup dengan dua sumber intens pencemaran lingkungan . Namun, sebuah studi menunjukkan bahwa materi polusi partikel dan nitrogen dioksida yang berbahaya menghilang pada bayi menyusui ASI selama empat bulan pertama kehidupan . Menurut hasil penelitian , menyusui memainkan peran protektif di hadapan dua polutan atmosfer ini .....read more

Breastfeeding protects against
environmental pollution

Date:

May 22, 2015

Source:

University of the Basque Country

Summary:

Living in a city with a high level of vehicle traffic or close to a steel
works means living with two intense sources of environmental pollution.
However, a study indicates that the harmful pollution particle matter and
nitrogen dioxide disappears in breastfed babies during the first four months of
life. According to the results of the research, breastfeeding plays a protective
role in the presence of these two atmospheric pollutants.

............................

Living in a city with a high level of vehicle traffic or close to a steel
works means living with two intense sources of environmental pollution.
However, a study conducted by the UPV/EHU researcher Aitana Lertxundi indicates
that the harmful effect of PM2.5 pollution particle matter and nitrogen dioxide (NO2) disappears in
breastfed babies during the first four months of life. According to the results
of the research, breastfeeding plays a protective role in the presence of these
two atmospheric pollutants.

Aitana Lertxundi has conducted her research work within the framework of
the INma (Childhood and Environment) programme led by Jesús Ibarluzea of the
Department of Health of the Government of the Basque Autonomous Community
(region). The aim is to assess how exposure to environmental pollution during
pregnancy affects health and also to examine the role of diet in physical and
neurobehavioural development in infancy. Lertxundi's study focusses on the
repercussions on motor and mental development during the first years of life
caused by exposure to the PM2.5 and NO2 atmospheric
pollutants.

Never before has such a recent, significant evaluation been made of the
effect of pollution particle matter (PM2.5) on the development of motor capacity
and that of nitrogen dioxide (NO2) on mental development between the
prenatal phase and until the baby is 15 months old. What is more, it has been
sustained over time since it was started in 2006. "In the fetal phase the
central nervous system is being formed and lacks sufficient detoxification
mechanisms to eliminate the toxins that build up," pointed out Aitana
Lertxundi.

The PM2.5 particles measure less than 2.5 micra, in other words, they are four
times thinner that a single hair and are suspended in the air. As they are so
small they can easily penetrate the body and as they weigh so little they can
spread without any difficulty through the air and can move far away from the
initial emission source. The composition of these neurotoxic particles depends
on the emission sources in the area. The INMA Gipuzkoa area under study has a
high presence of neurotoxic particle matter made up of lead, arsenic and
manganese from industrial activity and traffic. In comparison with urban
averages where the main source of pollution is traffic, the concentration is
lower.

One result of the study is that the existence of an inverse relationship
has been detected between exposure to pollution particle matter and the motor
development of babies. In this respect, the researcher highlights the fact that
"these indices display an alteration with respect to the average and, even
if they are not worrying, they are significant in that they reveal the relationship
existing between air quality and motor development." The analysis of the
data also shows that neither the PM2.5 particle matter nor the NO2 exert a harmful
effect on babies breastfed on mother's milk for at least four months.

The monitoring study started in 2006 when the mothers were pregnant and is
continuing today now that the children have reached the age of 8. So far,
samples taken from 638 pregnant women and their babies when they were 15 months
old have been analysed. They are inhabitants of the Goierri-Alto and Medio
Urola valleys, a part of the province of Gipuzkoa where industrial activity (11
steel works), rural activity, and residential areas are interwoven with each
other and through which a major highway passes.










Story Source:

The above story is based on materials provided by University
of the Basque Country. Note: Materials may be edited for content
and length.










Journal Reference:

1.   
Aitana Lertxundi, Michela Baccini, Nerea Lertxundi, Eduardo Fano, Aritz
Aranbarri, Maria Dolores Martínez, Mikel Ayerdi, Jon Álvarez, Loreto
Santa-Marina, Miren Dorronsoro, Jesus Ibarluzea. Exposure to fine
particle matter, nitrogen dioxide and benzene during pregnancy and cognitive
and psychomotor developments in children at 15months of age. Environment
International, 2015; 80: 33 DOI: 10.1016/j.envint.2015.03.007

http://www.sciencedaily.com/releases/2015/05/150522083414.htm

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