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Tag: "mothers" at biology news

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...nancy, which lasts three weeks. They separated the mothers into two groups. The control group ate as much cho... group. After delivery, all babies nursed and all mothers ate a full diet. "By the time the babies were weaned, at three weeks, the low-birth-weight group had...

Children's taste sensitivity and food choices influenced by taste gene

...les, researchers classified 143 children and their mothers into three groups based on their TAS2R38 genotype:...dren ?who were between 5 and 10 years of age - and mothers categorized three concentrations of a bitter-tasting compound (propylthiouracil; PROP) as tasting ei...

How the environment could be damaging men's reproductive health

...ically significant difference between boys born to mothers who smoked or who worked in a potentially harmful ... slightly higher. It rose from 5.1% in non-smoking mothers to 7.8% in smoking mothers, and from 4.9% to 7.13% for mothers working in a potentially harmful envi...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...ry different from that of the mother. For example, mothers showed rapid uptake and clearance of the drug in the heart, kidneys and lungs, with slower uptake in the liver and brain. In the fetus, cocaine accumulated at the highest levels in the liver (due to the unique anatomy of fetal circulation) and to a l...

The biggest family tree ever

...on, and mitochondrial DNA, which is passed on from mothers to their sons and daughters. This enables the researchers to decipher the characteristic genetic markers of both parental lineages. UA is collaborating in a joint venture with Family Tree DNA, a company specializing in tracing ancestry using genetic...

Radio-tracking associated with 'dramatic shift' in water vole sex ratio

...source competition hypothesis, which predicts that mothers with access to poor resources will produce offspring of the sex most likely to disperse and therefore reduce local competition for resources. "Radio-collars clearly have the potential to cause some stress to water voles, and it is possible that this...

15-year hunt finds cause of pseudothalidomide syndrome

...hortened limbs that resemble those of babies whose mothers took thalidomide during pregnancy. The discovery,...es of people with Roberts syndrome and those whose mothers took thalidomide suggest similar underlying biology, Jabs notes. Although there's some evidence that...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...ore sleep than her busy newborns. The newborns and mothers gradually increase sleep over a period of months u...normal adult levels. As the newborns grow, neither mothers nor offspring show counterbalancing increases in rest that would indicate accumulated sleepiness. A...

Antiretroviral Therapy May Prevent HIV Transmission From Breastfeeding Mothers To Infants

...oping world. Researchers in the first study found mothers pass antiretroviral medications on to their breast...owed levels of HIV RNA in breast milk are lower in mothers taking antiretroviral therapy than those who are not. Both studies appear in the September 1 issue o...

Scripps research scientists identify infertility molecule

...trol and Prevention, the average age of first-time mothers increased from about 21.4 in 1970 to nearly 25 in 2000. Many women wait until they are well into their thirties or later before having their first child. In fact, the CDC reports that in 2002, the latest year for which the statistics are available, ...

OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies

...e research may benefit thousands of babies born to mothers who continue to smoke throughout pregnancy despite...ality is that approximately 11 percent of pregnant mothers continue to smoke during pregnancy -- this translates to about a half a million American women a yea...

More animals join the learning circle

...f-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 dolphins off the west coast of Australia were the first marine m...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

...cted, and the social consequences of so many young mothers dying and leaving behind children who may also be infected as well as orphaned, women deserve a separate strategy. He also points out that medical research suggests hormonal and developmental factors place young women at greater risk than men for co...

Research suggests fitness of Florida panthers improved by limited breeding with Texas animals

...mpared them to the hybrids -- those that had Texas mothers or grandmothers. "More than three times as many hybrid kittens appear to reach adulthood as do purebred ones," the authors wrote. According to Pimm, native Florida panthers were "becoming famous" for an array of genetic abnormalities, including low ...

Opiates Better Than Sedatives For Treating Newborns In Withdrawal

...included 13 studies with a total of 890 infants of mothers who had used opiates with or without other drugs (...orphine instead of phenobarbitone. This helps keep mothers and babies together, helps in educating the mothers in mothercraft skills and to recognize signs of ...

Researchers discover new route to hemoglobin synthesis

...included 13 studies with a total of 890 infants of mothers who had used opiates with or without other drugs (...orphine instead of phenobarbitone. This helps keep mothers and babies together, helps in educating the mothers in mothercraft skills and to recognize signs of ...

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

... 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 susceptibility or response to i...

Hunger in America rises by 43 percent over last five years

...ory of household during the same time, with single mothers and those living in or near poverty continuing to suffer from severely high rates of both food insecurity and hunger. California, Texas, Arkansas, Missouri, North Carolina, New Mexico, Oklahoma and South Carolina all have food insecurity and hunger ...

Baby's genes affect mom's cholesterol levels

...of triglycerides and cholesterol when expressed in mothers may lower these levels when it is expressed simultaneously by the fetus in the placenta. These findings have implications for many women who are advised not to have children due to genetic defects in lipoprotein metabolism. Because their fetuses can...

Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants

...mizing maternal investment in their progeny, while mothers will have an interest in carefully partitioning resources among progeny to maximize their combined success. A new study in the September issue of The American Naturalist argues that with increased self-fertilization, parental conflict decreases. Con...

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