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Umbilical cord gene expression signals premature babies' lung disease risk
October 04, 2007Diagnosing a risk of fatal lung disorders may be possible by analysing the umbilical cords of premature babies, according to research published in the online open access journal Genome Biology. Until now, paediatricians have not been able to predict the development of bronchopulmonary dysplasia (BPD) because of the difficulties with obtaining lung samples.
Isaac Kohane and his team at the Children's Hospital, Boston, US, collected umbilical cord tissue samples from 54 premature infants born at less than 28 weeks of gestation, including 20 samples from infants who later developed BPD. When DNA expression profiles were compared, the researchers found that infants who subsequently developed BPD had distinct gene expression signatures that differed from the ones who did not develop the disease, although the maternal characteristics (for example, the cause of delivery, race, or inflammation of the uterus) were similar. The genes that differed between the two groups involved chromatin remodelling and histone acetylation pathways.
"This has provided a rare opportunity to examine the influence of foetal physiology on postnatal health and development using the multiple tissues in umbilical cords as a proxy for a wide variety of tissues in the maternal-foetal unit," says Kohane.
BPD occurs in 20-40% of infants born below 1000 grams and before 28 weeks of gestation, and means babies still need supplemental oxygen at 36 weeks postmenstrual age. It is the second leading cause of death among infants born within this gestational age and is characterised by inflammation and scarring in the lungs.
The study by Kohane and colleagues will contribute towards generating prognostic markers for disease from umbilical cord profiles.
BioMed Central
BPD occurs in 20-40% of infants born below 1000 grams and before 28 weeks of gestation, and means babies still need supplemental oxygen at 36 weeks postmenstrual age. It is the second leading cause of death among infants born within this gestational age and is characterised by inflammation and scarring in the lungs.
The study by Kohane and colleagues will contribute towards generating prognostic markers for disease from umbilical cord profiles.
BioMed Central
Umbilical Cord Current Events and Umbilical Cord News RSSCommunity-based behavior change management cuts neonatal mortality in half
A community-based program that reinforces basic childbirth and newborn care practices can reduce a baby's risk of death within the first month of life by as much as 54 percent, according to a study in rural India led by researchers at the Johns Hopkins Bloomberg School of Public Health in collaboration with CSM Medical University in Lucknow, India.
Pittsburgh researchers identify source of multipotent stem cells with broad regenerative potential
In a promising finding for the field of regenerative medicine, stem cell researchers at Children's Hospital of Pittsburgh of UPMC have identified a source of adult stem cells found on the walls of blood vessels with the unlimited potential to differentiate into human tissues such as bone, cartilage and muscle.
Hearing restoration may be possible with cochlear repair after transplant of human cord blood cells
According to an Italian research team publishing their findings in the current issue of Cell Transplantation (17:6), hearing loss due to cochlear damage may be repaired by transplantation of human umbilical cord hematopoietic stem cells (HSC) since they show that a small number migrated to the damaged cochlea and repaired sensory hair cells and neurons.
Children's national co-leads nationwide study of landmark sickle cell treatment
Children's National Medical Center immunologist and blood and marrow transplant physician Naynesh Kamani, MD, will serve as the study co-chair for a new national clinical trial of unrelated donor marrow and umbilical cord blood transplants for severe sickle cell disease.
Researchers grow human blood vessels in mice from adult progenitor cells
For the first time, researchers have successfully grown functional human blood vessels in mice using cells from adult human donors - an important step in developing clinical strategies to grow tissue, researchers report in Circulation Research: Journal of the American Heart Association.
Vitamin A pushes breast cancer to form blood vessel cells
Researchers at Georgetown University Medical Center have discovered that vitamin A, when applied to breast cancer cells, turns on genes that can push stem cells embedded in a tumor to morph into endothelial cells. These cells can then build blood vessels to link up to the body's blood supply, promoting further tumor growth.
Umbilical cord blood cell transplants may help ALS patients
A study at the University of South Florida has shown that transplants of mononuclear human umbilical cord blood (MNChUCB) cells may help patients suffering from Amyotrophic Lateral Sclerosis (ALS), also known as Lou Gehrig's disease.
U of M Sets Course For Cure of Fatal Childhood Skin Disease
Physicians at the University of Minnesota and University of Minnesota Children's Hospital, Fairview have set the path to a cure for a young boy's fatal genetic skin disease, recessive dystrophic epidermolysis bullosa (RDEB), by using a cord blood and bone marrow transplant. Nate Liao, a 25-month-old from Clarksburg, N.J., underwent the experimental therapy in October 2007.
Health risks, benefits come with delayed umbilical cord clamping
Waiting just a few minutes to clamp the umbilical cord after a baby is born could boost iron stores in the newborn's blood, but delayed cord clamping comes with an increased risk of jaundice, according to a new review of studies.
Omega-3 intake during last months of pregnancy boosts an infant's cognitive and motor development
A study supervised by Université Laval researchers Gina Muckle and Éric Dewailly reveals that omega-3 intake during the last months of pregnancy boosts an infant's sensory, cognitive, and motor development. The details of this finding are published in a recent edition of the Journal of Pediatrics.
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