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Tag: "births" at biology news

An 'elegant' idea proves its worth 25 years later

...nia poisoning. An estimated one in 40,000 live births is a child with a urea cycle disorder, according to Hamosh, who says early and accurate detection can now assure prompt treatment. "We’re teaching all medical students at Hopkins to consider hyperammonemia and immediately do blood tests when they ...

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...(Aug.-Sept.). More than 27 million U.S. live births were studied from 1996-2002. Preterm birth varied ... St. Francis Hospital in Indianapolis. "Preterm births in the United States vary month to month in a recurrent and seasonal manner. Pesticides and nitrates...

Study shows dramatic increase in Caesarean sections

...ietal factors. The research project looked at all births in Western Australia between 1984 and 2003 (more t... most recent five year period, spontaneous vaginal births had dropped by 5 per cent, while forceps and vacuum assisted deliveries were down by 15 per cent. ...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...children, occurring once in about every 5,000 live births of boys, and is ultimately fatal. The average age of death is the mid-teens, and most patients die by their 30s. In the United States, about 400 to 600 boys are born each year with DMD or Becker Muscular Dystrophy, a milder form of the disease. The c...

Pitt study notes decline in male births in the US and Japan

...t during the past thirty years, the number of male births has decreased each year in the U.S. and Japan. In a review of all births in both countries, the University of Pittsburgh-led study found significantly fewer boys being born ...

The penalty of having a sister -- why sibling sex matters for male saiga antelopes

...pment, because there are a high proportion of twin births in the population, and because the optimal birth weight for males and females of the species are dramatically different. The researchers' study of female saigas and their young also showed that they invest more in their pregnancy than any other ho...

Scientists discover new, readily available source of stem cells

...ransplantation. There are more than 4 million live births each year in the United States. In addition to being easily obtainable, the AFS cells can be grown in large quantities because they typically double every 36 hours. They also do not require guidance from other cells (termed "feeders") and they do ...

Procedure predicts embryos most likely to result in pregnancy

To address the high rate of multiple births resulting from in-vitro-fertilization (IVF), resea... possibly leading to a decrease in multiple-infant births and a higher success rate in women undergoing IVF. Over 100,000 in-vitro fertilization procedures a...

Birth rate, competition are major players in hominid extinctions

... humans suffered from the primate curses of single births widely spaced. For Neandertal, cultural adaptation was not sufficient to overcome and compete with modern humans, just as Paranthropus boisei could not compete with the likes of bush pigs and hyenas. " Can we, today, control our cultural behavior t...

Plastic that degrades in seawater could be boon for cruise industry and others

...d of a surrogate such as days gained or percent of births before 32 or 35 weeks of gestation."...

Improving outcomes in premature births

...d of a surrogate such as days gained or percent of births before 32 or 35 weeks of gestation."...

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

... them of the risks of multiple births, as multiple births are less safe for mothers or babies." ...

Study suggests evolutionary link between diet, brain size in orangutans

...'s orangs. Such relatively short intervals between births could themselves be tied to smaller brains in such higher primates as orangutans, van Schaik and Taylor wrote in their current report. "Larger-brained apes have slower-paced life histories," they said. "Assuming selection is acting on brain size, l...

US infant mortality rate fails to improve

...ted for less than 1 percent (0.7 percent) all live births but nearly half (46.4 percent) of all U.S. infant...counted for less than one percent (0.8 percent) of births and nearly half (48.7 percent) of all infant deaths in the U.S. in 2003. Multiple births had morta...

New technology addresses female fertility preservation

...bies with a different coat color, proving that the births were the result of the cultured embyros. Both male and female offspring were fertile. ...

How IVF could be causing genetic errors in embryos

...ndrome, a growth disorder occurring in 1 in 75,000 births (involves intrauterine growth restriction and subsequent poor growth). Gnas ?plays a role in cell signalling and is associated with McCune-Albright syndrome (involves bone, hormone and skin abnormalities), pseudohypoparathyroidism Ib (involves inade...

New tool tracks brain development in babies

...an incidence of between one and two per 1,000 live births in the United States. ...

New insights into neural tube defects

...rs lead to neural tube defects in 1 in every 1,000 births and cause 1 in 20 of every spontaneous abortion. One cause of these defects is the failure of cells within the neural tube to migrate to the middle of the developing neural tube. A study in this week's issue of Nature is the first to report on th...

Birth defects: 8 million annually worldwide

...ted 8 million children -- about 6 percent of total births worldwide -- are born with a serious birth defect ...low-income countries where more than 94 percent of births with serious defects and 95 percent of the deaths of these children occur, the report finds. Both h...

UCLA scientists discover immune response to HIV differs, even in identical twins

...e twins who were infected shortly after their 1983 births in Los Angeles by blood transfusions administered from the same donor at the same time. Infected with the same strain of the virus, the twins continue to live in the Los Angeles area and grew up exposed to the same environmental forces. Yet their T-...

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