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Tag: "younger" at biology news

Mouse brain tumors mimic those in human genetic disorder

...n ?these tumors generally start growing inchildren younger than 5 years old and usually do not progress after... that the tumors were actively growing only in the younger mice."If this finding is also true in humans, this strongly argues thatcontrast enhancement on MRI a...

Ants Genetic Engineering Leads To Species Interdependency

...t theycan no longer feed themselves or raise their younger siblings.Recent work on ants suggests that we may need to add geneticengineering to the list of innovations ants have evolved to employ. Intwo species of harvester ants, populations have been discovered inwhich queens mate with males of another speci...

Potential Cure for Lymphoma in HIV patients

...option. Radiation therapywas selected for patients younger than 55 who had poorer prognosticfactors: either the cancer had spread to multiple lymph nodes or thepatient had bulky disease (indicated by a cancerous mass greater than 5?10 cm).Reversible abnormalities in liver function, a side effect of theintens...

Bone Density Recovers After Teens Stop Injected Contraceptive

...fter discontinuing the contraceptive. However, the younger women in the current study both lost bone density ...de reassurance that bone loss is regained, even in younger users.?/p> The current study is among several funded by NICHD to evaluate the impact of DMPA on ...

US life expectancy about to decline, researchers say

...hat with estimates of the prevalence of obesity in younger generations, the authors were able to illustrate that in the coming decades the risk of death from obesity-related causes is about to rise. The hardest hit will be minorities, because of limited access to health care and because they have experienced...

Live fast, die young true for forests too

...nges might affect wildlife populations that prefer younger or older forests, said van Mantgem. Stephenson an...an Mantgem pointed out that increased dominance by younger trees could also lead to changes in the amount of carbon stored in forests, though the direction and...

Increased risk of osteoporosis associated with gene that one in five people have

...illareal says. "Our next study will look at a much younger group of women. My guess is that we will find that females with this variant gene are breaking down estrogen rapidly from the day they are born. In that case, they would never achieve an adequate peak bone density and would lose even more bone mass a...

Small species back-up giant marsupial climate change extinction claim

...o around 45,000 years ago," says Mr Price. "Other younger sections have a mixture of both large and small species that are habitat generalists or are species found in open areas, suggesting the landscape was evolving towards open grassland. "By the latest Pleistocene species dependent on wetter conditions ...

New Estimates For The Causes Of Child Deaths Worldwide

...n new estimates for mortality by cause in children younger than age 5 years. They found the four communicable...rlying cause of 53% of all deaths in children aged younger than 5 years. The investigators also calculated the total numbers and proportional distributions of ...

Youth With HIV Take More Risks After New Meds Introduced

...ost-HAART group also knew their HIV diagnosis at a younger age and were in worse health than the pre-HAART gr...ugh they are being identified as HIV-positive at a younger age, these youth are being identified later in the progression of the disease. Therefore, it is also...

Six million Africans face famine because of locusts, drought

...ttle and other livestock have plummeted. Children younger than 5 in Mauritania, Mali and Niger are suffering from rapidly spreading malnutrition and in Niger many villagers have been feeding themselves with wild plants, it said. ...

Human Eggs Can Develop From Ovarian Surface Cells In Vitro

...o fertilization. Eventually, frozen OSE cells from younger females may be preserved for later production of f...tion, a colonization of premenopausal ovaries with younger oocyte and granulosa stem cells may establish a new cohort of primary follicles. This may result in ...

Young Blood Revives Aging Muscles, Stanford Researchers Find

...ndo and his group first attached old mice to their younger lab-mates in a way that caused the two mice to sha... only in the older mice. Bathed in the presence of younger blood, the old muscles healed normally. In contrast, when old mice were connected to other old mice ...

$5.1 billion would save 6 million children

...ible to deliver in low-income settings to children younger than age 5 years, this is the first time the globa...rtality from the major causes of death in children younger than age 5 years. They focused on preventive interventions that could be put in place during 18 visi...

Community MRSA is re-emergence of 1950s pandemic, study suggests

...cord for causing serious diseases in healthier and younger age groups than those currently regarded as at risk. The increased resistance to antibiotics of the community acquired MRSA clone over its 80/81 ancestor mean that there could also be other factors which complicate the treatment of the disease it cau...

Ancient DNA helps clarify the origins of two extinct New World horse species

...e ancient DNA to argue that the Hippidion genus is younger than previously thought and that American stilt-legged horses were American endemics, not Asian emigres. Their analysis has also whittled down the taxonomy of North American species to just two. "I think the biggest issue is that we showed the appare...

Amazon source of 5-year-old river breath

...e silently being returned to the atmosphere is far younger than carbon being carried downstream," he said. "Previous studies failed to detect the rapid recycling of forest carbon because they never dated the invisible greenhouse gas as it is literally exhaled by the river organisms." "River breath is much d...

Male Combat Veterans Rank High In Heart Disease Risk

...index of 30 or higher, she said. "Consistent with younger veterans of more recent wars, older men with distant combat exposure had higher odds of heavy smoking, heavy drinking and obesity, but lower odds of physical inactivity compared to non-veterans or non-combat veteran controls," Johnson said. Results ...

More animals join the learning circle

...ng male started doing it, Noonan spied the whale's younger half-brother doing the same thing. Soon the brothers' mothers were enjoying feathered snacks, as were a 6-month-old calf and an older male. Noonan presented the research this month at the US Animal Behavior Society meeting in Snowbird, Utah. Wild do...

Hospitalizations because of chicken pox down dramatically since implementation of vaccine

...e groups, with the greatest declines among infants younger than 1 year. Total estimated direct medical expenditures for chicken pox hospitalizations and ambulatory visits declined by 74 percent, from an average of $84.9 million in 1994 and 1995 to $22.1 million in 2002. "The data in our study demonstrate th...

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