Regular intake of Vitamin D supplements during the period of pregnancy can possibly protect the newborn child from asthma and respiratory infections.
The immune system of the new-born baby can be positively modified to protect the child against asthma and respiratory infections in its childhood, by taking Vitamin D supplements during pregnancy. The study was published in Journal of Allergy and Clinical Immunology.
‘Higher the levels of Vitamin D during pregancy, the more effective is the immune system in protecting the child from possible asthma and respiratory disorders’
The scientists looked at the effect that taking a supplement of 4,400 IU vitamin D3 per day during the second and third trimesters of pregnancy versus the recommended daily intake (RDI) of 400 IU/day, had on the immune system of the newborn.All the participants were randomized at 10 - 18 weeks of pregnancy to high or low doses of vitamin D supplements.
The researchers then took umbilical cord bloods from 51 pregnant women to test the responsiveness of the newborn's innate immune system, which form the body's first line of defence to infection, and T lymphocyte responses, which provide longer-lasting protection.
The team found that blood samples found from babies born to mothers supplemented with higher vitamin D3 responded to mimics of pathogen stimulation by greater innate cytokine responses and greater IL-17A production in response to T lymphocyte stimulation.
Both types of response are predicted to improve neonatal defence to infection. Given the evidence for strong immune responses in early life being associated with decreased development of asthma, the team believes the effect will likely lead to improved respiratory health in childhood.
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And went on to say, "Studies to date that have investigated links between vitamin D and immunity in the baby have been observational. For the first time, we have shown that higher Vitamin D levels in pregnancy can effectively alter the immune response of the newborn baby, which could help to protect the child from developing asthma. Future studies should look at the long-term impact on the immunity of the infant."
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According to Dr. Samantha "Asthma affects 1 in 11 people in the UK, yet years of under funding in research mean that we still do not understand what causes asthma, or have the ability to predict which babies will go on to develop asthma. This is urgently needed if we are to develop strategies to treat, and ultimately prevent asthma in children."
Source-ANI