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Tag: "born" at biology news

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

... it was generally believed that each individual is born with a fixed number of nerve cells in the brain, and that these cells gradually degenerate and die during the person's lifetime and cannot be replaced. This theory was disproved when researchers discovered that certain regions of the adult brain do i...

There's something fishy about human brain evolution

...nane, to fuel this neural demand, human babies are born with a built-in energy reservoir ?that cute baby fat. Human infants are the only primate babies born with excess fat. It accounts for about 14 per cent of their birth weight, similar to that of their b...

Hyena mothers give their cubs a helpful dose of hormones

...ts her cubs on the road to success before they are born by passing on high levels of certain hormones that make her budding young leaders more aggressive and sexually advanced. The report, published in the April 27 issue of Nature, is the first study in mammals to demonstrate a relationship between a fem...

Liquid ventilation

To live we need to breathe. Prior to being born we carry this activity out through the placenta and subsequently by means of our lungs. In normal development, the lungs of the foetus are filled with amniotic liquid and, on being born, the first cry activates this respiration surface. But the main ...

Neurons find their place in the developing nervous system with the help of a sticky molecule

...ayers 2 and 3, the focus of the current study, are born last and so must elbow their way through cells lying in earlier formed layers to reach what will become the outermost layers. Without MDGA1, these neurons begin to migrate but get stuck before they reach their normal destination. The MDGA1 gene was ...

Birth defects: 8 million annually worldwide

...- about 6 percent of total births worldwide -- are born with a serious birth defect of genetic or partiall...mes. Additionally, hundreds of thousands more are born with serious birth defects of post-conception origin due to maternal exposure to environmental agent...

Sooner is better with cochlear implants, Stanford scientist shows

...ains process speech the same way as people who are born with the ability to hear? In the Dec. 5 online ed...ted Knudsen. Knudsen and Fox wondered if children born deaf would experience the McGurk effect after receiving cochlear implants. Funded by the National In...

Recreating 'Flowers for Algernon' with a happy ending

... test the effect of statins in children and adults born with NF1. The findings could help the estimated 35 million Americans who struggle with learning disabilities. "Learning disabilities and mental retardation each affect five percent of the world population," said Dr. Alcino Silva, professor of neuro...

Womb needed for proper brain development

The brains of babies born very prematurely do not develop as well as those w...d that an ultrasound study of the brains of babies born around 26 weeks gestation showed that certain aspects of brain development were very compromised com...

Cells from amniotic fluid used to tissue-engineer a new trachea

...defects are rare, they're life-threatening: babies born with incomplete, malformed or missing tracheas can...ratory distress. (The other two lambs, twins, were born prematurely and did not survive.) While many congenital defects can be safely repaired after birth,...

Genetic testing still smart choice, despite uncertainties

...ement when it works." More than 45,000 babies are born each year with the aid of assisted reproductive technologies like IVF, according to the Centers for Disease Control and Prevention. The use of IVF has declined in recent years, but Grifo said that is largely because baby boomers are leaving their chi...

Earliest European Farmers Left Little Genetic Mark On Modern Europe

...out HIV prevention measures, about 35% of children born to HIV-positive women will contract the virus. While mother-to-child transmission has been virtually eliminated from industrialized countries and service coverage is improving in many other places, it still falls far short in most of sub-Saharan Afri...

2005 AIDS figures released by WHO and UNAIDS

...out HIV prevention measures, about 35% of children born to HIV-positive women will contract the virus. While mother-to-child transmission has been virtually eliminated from industrialized countries and service coverage is improving in many other places, it still falls far short in most of sub-Saharan Afri...

Study uncovers placental microtransfusions lead to transmission of AIDS virus during childbirth

...shown. Between 25 percent and 35 percent of babies born to untreated HIV-infected mothers become infected themselves. That's a half million newborn worldwide every year facing chronic illness and premature death on their first day out of the safety of the womb. "The question has always been how does the...

Researchers discover why melanoma is so malignant

... is so ruthless. Unlike other cancers, melanoma is born with its metastatic engines fully revved. "Other cancers need to learn how to spread, but not melanoma," says Whitehead Member Robert Weinberg, senior author of the paper that will be published September 4 in the early online edition of the journal...

Prenatal exposure to famine increases risk of schizophrenia

People born during a famine in China have an increased risk of...ffected provinces. Rates were compared among those born before, during, and after the famine years. All psychiatric case records for the years 1971 through ...

Molecular Partners Required For Appropriate Neuronal Gene Repression

...Dr. Back's research. "More than 470,000 babies are born prematurely each year. Until we find the answers to preventing prematurity, research such as this may lead us to new ways to prevent brain damage and has the potential to improve the lives of thousands of infants. " Additional collaborative research...

OHSU researchers discover potential mechanism to repair brain damage linked to Multiple Sclerosis

...Dr. Back's research. "More than 470,000 babies are born prematurely each year. Until we find the answers to preventing prematurity, research such as this may lead us to new ways to prevent brain damage and has the potential to improve the lives of thousands of infants. " Additional collaborative research...

Number Of Babies Born Prematurely Nears Historic Half Million Mark In U.S.

...3 percent of all babies -- 499,008 infants -- were born prematurely (less than 37 weeks gestation) in 2003, according to the report released by the National Center for Health Statistics (NCHS). That's up from 12.1 percent (or about 480,000 babies) in 2002 -- and an increase of more than 30 percent since t...

Studies clarify risk factors for mother-to-child transmission of hepatitis C virus

...nd Prevention and colleagues, followed 244 infants born to infected mothers in Houston and Honolulu. The finding of gender differences in HCV infection was reported by the European authors, who hypothesized that their result may reflect hormonal or genetic differences between men and women in susceptibil...

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