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Tag: "mothers" at biology news

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

...5 percent of babies born to untreated HIV-infected mothers become infected themselves. That's a half million...on has always been how does the virus get from the mothers to the babies?" said principal investigator Dr. Steven Meshnick, professor of epidemiology at the Un...

Rutgers researchers scientifically link dancing ability to mate quality

...c men. "In species where fathers invest less than mothers in their offspring, females tend to be more selective in mate choice and males therefore invest more in courtship display," Brown said. "Our results with human subjects correlate with that expectation. More symmetrical men put on a better show, and w...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

... direction. "For instance, screening of expectant mothers has become more common, with more than 95% of women delivering babies at Tijuana General agreeing to rapid screening and intervention. If a mother tests positive for HIV infection, antiretroviral medicine can be administered to reduce the risk of HI...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...ed on whether the monkeys had been reared by their mothers or not," he said, "with mother-reared animals drinking significantly less than others." This more recent study, added Lorenz, shows that this effect ?while statistically significant ?is much smaller than additive genetic effects. "Identifying a gen...

Fertility drugs given 'all-clear' in new study

... Fertility and Sterility, showed that babies whose mothers were treated with letrozole had the same rate of birth defects as those whose mothers were treated with clomiphene citrate ?the low-risk, first-line treatment for infertility for more th...

Alternatives to the use of nitrate as a fertiliser

...cies in the oxygenation of blood in breast-feeding mothers or the accumulation of nitrosamines, substances that are said to be cancerous, in the adult stomach. This is why it is necessary to find a balance between agricultural productivity and quality crops, while maintaining environmental conditions. Thes...

African amphibians make extreme parental sacrifice: The skin off their backs

...iphonops annulatus had teeth and stayed with their mothers for some time after hatching. Those observations, coupled with the unusually pale skin color of mothers caring for young, led Nussbaum and colleagues to speculate that S. annulatus hatchlings fed on gland...

New study shows benefit of early therapy in HIV-infected infants

...treatment in children infected with HIV from their mothers revolves around balancing the benefits of preventing disease progression and the risks and costs of life-long therapy begun within months of birth. Policies on when to start ART vary across Europe. Up to this point, the effect of age on clinical out...

Congenital rubella syndrome nearly eradicated in the US

...eliminating transmission of rubella from expectant mothers to their unborn babies. "Effectively, congenital rubella syndrome has been nearly eradicated from the United States," according to the statement. There were fewer than 10 cases or rubella reported in the U.S. last year and in the past 5 years there...

First link of oral bacteria and preterm birth found in human

... that in this small study it was one in six of the mothers under 30 weeks and in the overall population could...n has been suspected through the mouth in pregnant mothers where the oral bacteria enter the blood through bleeding gums. Hans said the infections play a bigg...

Prenatal nicotine exposure reduces breathing response of newborns...

... that in this small study it was one in six of the mothers under 30 weeks and in the overall population could...n has been suspected through the mouth in pregnant mothers where the oral bacteria enter the blood through bleeding gums. Hans said the infections play a bigg...

US infant mortality rate fails to improve

...according to the NCHS report. Babies born to Black mothers continued to have the highest rate of infant deaths at 13.5 per 1,000 live births, while Asians had the lowest rate at 4.8. The rate for American Indians was 8.7 and for Whites it was 5.7. Infants born to Hispanic mothers, who can be of any race, had...

Newborn screening can cause unnecessary parental stress

...with normal newborn screening results. Although mothers in the false-positive group were interviewed at le...ld's future and rated themselves less healthy than mothers in the comparison group. Fifteen percent said their child needed extra parental care, versus 3 perce...

Breastfeeding boosts mental health

... powerful evidence for more support to be given to mothers to help them breastfeed for longer," she said....

Parental genes do what's best for baby

...n that selection for positive interactions between mothers and their offspring, rather than conflict, can produce the sorts of imprinting patterns we see for a lot of genes. “For example, during placental development the maternal and offspring genomes have to work together to produce a functional placenta...

Female pronghorns choose mate based on substance as well as show

... these faster-growing fawns suckle less from their mothers than do the offspring sired by less-attractive males. He monitored the population for several years, and found the offspring of frequently chosen males continued to have a survival advantage for as long as five years. ...

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

...e pounds and eight ounces) or more at birth. The mothers of very low birth-weight babies tended to be younger than the mothers in the control group, and were half as likely to be educated to college degree or higher. 45 per ce...

History-hunting geneticists can still follow familiar trail

...eople and animals mtDNA is exclusively passed from mothers to their children. For humans, this means that all of the mtDNA in our cells are copies of our mothers' mtDNA, which in turn were copies of their mothers' mtDNA. In this way, mtDNA progresses through the ages, springing from what many scientists ...

Planning ahead: Having the healthiest baby possible

...greatest opportunities for improving the health of mothers and babies lie in prevention strategies implemented before conception." Dr. Hani Atrash, co-editor of the Supplement and associate director for program development at the Centers for Disease Control and Prevention's (CDC) National Center on Birth De...

Down syndrome: It's not just the age factor

... Syndrome rates were significantly higher in older mothers in their first pregnancy than in older mothers who had already had children. Only late first pregnancies were more likely to produce a Down Syndro...

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