ScienceDaily (Oct. 31, 2012) Researchers at Boston Children's Hospital have found that microscopic particles containing proteins and nucleic acids called exosomes could potentially protect the fragile lungs of premature babies from serious lung diseases and chronic lung injury caused by inflammation. The findings explain earlier research suggesting that while transplanting a kind of stem cell called mesenchymal stem cells (MSCs) could help reduce lung injury and prevent inflammation in a mouse model, the fluid in which the cells were grown was more effective than the cells themselves. The research team -- led by Stella Kourembanas, MD, and S. Alex Mitsialis, PhD, and spearheaded by led by Changjin Lee, PhD, all of the Division of Newborn Medicine at Boston Children's -- published their findings online on October 31 in the journal Circulation. Premature babies often struggle to get enough oxygen into their underdeveloped lungs, resulting in hypoxia and the need for ventilator assistance to breathe. Their lungs are particularly susceptible to inflammation, which can lead to poor lung growth and chronic lung disease. Inflammation is also often associated with pulmonary hypertension (PH) -- dangerously high blood pressure in the pulmonary artery (the vessel that carries blood from the heart to the … Continue reading
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