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Tag: "born" at biology news

Very low birth weight linked to reduced quality of life in pre-school children

...less and compared them with a control group of 170 born at normal weights to compare their quality of life when it came to physical, emotional, cognitive and social functions. They discovered that the very low birth-weight children scored consistently lower scores on a scale designed to measure quality o...

Search on for treatment of slow-healing wounds

...ase in adult and child obesity. One-in-3 Americans born in 2000 are expected to develop diabetes if current trends continue, according to the Centers for Disease Control and Prevention. The CBE's research into chronic wounds began two years ago, after it was contacted by Dr. Randy Wolcott, who heads the...

Blue eyes -- A clue to paternity

... is recessive. It then follows that if a child born to two blue-eyed parents does not have blue eyes, then the blue-eyed father is not the biological father. It is therefore reasonable to expect that a man would be more attracted towards a woman displaying a trait that increases his paternal confiden...

Hard-wiring the fruit fly's visual system

...tute investigator. "The neurons in vertebrates are born and are genetically programmed to project into a certain brain region. This is followed by a dynamic phase where neuronal activity refines the visual map. In contrast, in flies the system seems to be completely hard-wired and only rely on genetic inp...

New neurons could act to alleviate epilepsy

...tate gyrus cells. However, they found that neurons born into an epileptic environment, compared to the physiological running environment, showed reduced excitatory connectivity to other neurons, as well as increased inhibitory connectivity. Such differences could mean the newly generated neurons "could ha...

Embryo tests give parents the choice

...me infertility and to ensure that all children are born with achance of a full and flourishing life, says ...or the study knew of cases where children had been born with diseases that PGD was supposed to eliminate. One reason for this is that all eight cells of th...

Adults who go to bed lonely get stress hormone boost next morning

...es 156 older adults living in Cook County who were born between 1935 and 1952 and represent a range of socioeconomic classes. Their cortisol levels were measured from small samples of saliva provided three times a day for three consecutive days. Study participants reported their feelings each night in a d...

'Cellular antennae' on algae give clues to how human cells receive signals

...le to develop debilitating kidney disease or to be born with learning disabilities, extra fingers or toes, or the inability to smell. But no one really knows how cilia work, or, in some parts of the body, what their function is. "There are cilia all over within our brain, and we don't have a clue about...

Newborn screening can cause unnecessary parental stress

...lth. According to the CDC, over 4 million babies born in the U.S. each year undergo screening for biochemical genetic disorders, with severe disorders detected in about 3,000. One recent study suggests that there are at least 12 false-positive results for every true case diagnosed*; another puts the rat...

US infant mortality rate fails to improve

...he percentage of infant deaths occurring to babies born premature (less than 37 weeks gestation) or with a...ing to an analyses by the March of Dimes. Babies born at less than 28 weeks gestation accounted for less than 1 percent (0.7 percent) all live births but ...

Fertility hope as study shows eggs survive in older ovaries

...ld for more than 50 years, that female mammals are born with a finite number of oocytes (eggs). Two years ago, international researchers speculated that mice could continue to produce eggs throughout puberty and adulthood. Although their speculation caused debate throughout the scientific community, the...

Birds going extinct faster due to human activities

...injury. "We largely keep the brain cells we are born with for life, but we also have stem cells in our brain that can divide and make new neurons for maintenance," said Gordon Fishell, Ph.D., a professor of cell biology with the Skirball Institute of Biomolecular Medicine at New York University Medical...

Medium is the message for stem cells in search of identities

...injury. "We largely keep the brain cells we are born with for life, but we also have stem cells in our brain that can divide and make new neurons for maintenance," said Gordon Fishell, Ph.D., a professor of cell biology with the Skirball Institute of Biomolecular Medicine at New York University Medical...

Bone marrow may restore cells lost in vision diseases

...e to make repairs. "The dogma has been that we're born with a fixed amount of RPE, but there is growing evidence retinal progenitor cells exist in the adult," said Lawrence Rizzolo, Ph.D., a Yale University associate professor of anatomy and experimental surgery and of ophthalmology and visual science wh...

Innovative method for creating a human cytomegalovirus vaccine outlined

Each year, about 40,000 children are born infected with human cytomegalovirus, or CMV, and about 8,000 of these children suffer permanent disabilities due to the virus ?almost one an hour. These disabilities can include hearing loss, vision loss, mental disability, a lack of coordination, an...

Sperm created in the laboratory from embryonic stem cells produce viable progeny

...ully transplanted into mice. Six of the seven mice born developed into adult mice. The results of this study establish that the ES cell derived cell lines can produce functional sperm in the laboratory which can be used to successfully fertilize eggs and support full-term development into embryos and ad...

Dominant meerkats render rivals infertile

...it from not having to compete with additional pups born to a subordinate for the limited number of available caretakers. Second, because subordinate females actually kill other females' pups when pregnant themselves, reducing subordinate female pregnancy rates will reduce the threat of infanticide. Dr A...

Scientists reverse evolution

...rol facial expressions in animals. When a mouse is born with a disabled Hoxb1 gene, it suffers facial para... gene then produced the other gene's protein. Mice born with the switched genes were essentially normal. That means the coding regions were interchangeab...

Light guides flight of migratory birds

...much more confusing picture. Migratory birds are born with an innate magnetic compass preference that coincides with their species' migratory direction. Previous research suggested that before the migration period, songbirds are able to recalibrate the magnetic compass when exposed to a "conflict" betwe...

Giant deep-sea tubeworm's meal ticket comes in as a skin infection

...ve. But the microscopic larvae of these giantsare born bacteria-free, with a completedigestive system. Juveniles swim, hunt, andeat before permanently settling down andtaking up with their microbial partners. Nowthe idea that the larvae acquire theirsymbionts by eating them has beenoverturned. By collect...

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