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Tag: "pregnant" at biology news

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

...nsmission of HIV, the virus that causes AIDS, from pregnant women to their infants sometime during childbirth ...y that occurs. A new study they conducted with 149 pregnant HIV-infected women in the African nation of Malawi showed that tiny amounts of virus-laden blood lea...

2005 AIDS figures released by WHO and UNAIDS

...% in 2003 and evidence of drops in HIV rates among pregnant women in Zimbabwe from 26% in 2003 to 21% in 2004....urban areas of Burkina Faso prevalence among young pregnant women declined from around 4% in 2001 to just under 2% in 2003. These latest findings were publishe...

Earliest European Farmers Left Little Genetic Mark On Modern Europe

...% in 2003 and evidence of drops in HIV rates among pregnant women in Zimbabwe from 26% in 2003 to 21% in 2004....urban areas of Burkina Faso prevalence among young pregnant women declined from around 4% in 2001 to just under 2% in 2003. These latest findings were publishe...

Male elephants woo females with precise chemistry

..."follicular" females, and females that were either pregnant or in a non-reproductive "luteal" phase. They also...n - males of all ages, as well as luteal-phase and pregnant females, were repulsed. Only ovulating females were attracted. The study's results indicate that t...

Cells from amniotic fluid used to tissue-engineer a new trachea

... fluid is much more readily available. Millions of pregnant women elect to have amniotic fluid drawn to test for chromosome defects, the procedure known as amniocentesis. And when a prenatal ultrasound exam reveals fetal malformations, amniocentesis is usually recommended. Complications are rare. "In many ca...

Birth defects: 8 million annually worldwide

...woman's reproductive years. Control infections in pregnant women. Train physicians, nurses, allied health professionals and workers in the recognition and care of children with birth defects. Establish national capacity for birth defects surveillance and monitoring. Some middle-income countries have infa...

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

...x with men, injection drugs users, sex workers and pregnant women ?are of particular concern. The aim of the UCSD study, conducted along with collaborators in Mexico, was to estimate the number of men and women in Tijuana, aged 15 to 49 years, infected with HIV. This is the age group assumed to be at the hi...

Technique makes it easier to see mouse embryo in all its glory

...vers and household cleaning chemicals are safe for pregnant mothers," he said. "The EPA (U.S. Environmental Protection Agency) and FDA (U.S. Food and Drug Administration) mandate that chemical and drug companies perform tests of reproductive safety, but how complete are these studies? Historically, these stud...

Ultrasounds show mothers' drinking shrinks fetal brain

...ers who continue to imbibe after learning they are pregnant may carry fetuses with reduced skull and brain gro... authors obtained routine ultrasound data from 167 pregnant women who had reported a history of hazardous drinking before pregnancy. Of these, 97 were classifie...

Hyena mothers give their cubs a helpful dose of hormones

...ate in pregnancy when compared to the subordinate, pregnant females in the pack. Consequently, the cubs of the alpha females were more aggressive and exhibited more sexual play, characteristics that elevate the chances for life-success in both sexes. In hyena packs, male-female social roles are reversed from...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...s eczema, in infants younger than 12 months and in pregnant women. Health care providers currently treat smallpox vaccine complications with anti-vaccinia immune globulin (VIG)--pooled antibodies taken from the blood of individuals immunized with the smallpox vaccine. However, VIG is in short supply since the...

Single microRNA causes cancer in transgenic mouse

...mote its expression, into fertilized eggs inside a pregnant mouse. The researchers then screened the offspring to find those that had incorporated miR155 into their genomes and followed them to see what effect miR155 might have. Within three weeks, the transgenic mice developed greatly enlarged spleens, and...

Viral 'fitness' explains different resistance patterns to aids drugs

...r (NNRTI), for example, can be taken one time by a pregnant woman to prevent mother-to-child transmission, and NNRTI-resistant HIV virus can develop. Yet patients taking unboosted protease inhibitors (PI) do not experience the peak risk of PI-resistant HIV developing unless they are taking most of their PIs b...

First link of oral bacteria and preterm birth found in human

... infection has been suspected through the mouth in pregnant mothers where the oral bacteria enter the blood th...teria of Fusobacterium nucleatum into the blood of pregnant mice. It resulted in premature delivery for the mouse mothers and fetal death for some of their fet...

Prenatal nicotine exposure reduces breathing response of newborns...

... infection has been suspected through the mouth in pregnant mothers where the oral bacteria enter the blood th...teria of Fusobacterium nucleatum into the blood of pregnant mice. It resulted in premature delivery for the mouse mothers and fetal death for some of their fet...

Nutrition a major factor in rise in twin pregnancies

...a little over twice the rate involved when getting pregnant naturally. Professor Jansen and his team reviewed Australian national birth statistics from 1920 to 2003 to determine the sex of babies at birth among multiple pregnancies. They found that the rate of dizygotic (DZ) twinning ?where two embryos are ...

Five surprising facts about starvation that could change the international agenda

... of children. These include improving nutrition in pregnant and lactating women to prevent low-birthweight babies, effective protection against infectious disease, improved water and sanitation systems, promotion of breastfeeding during an infant's first six months, enhanced health and nutrition information f...

How HIV 'exhausts' killer T cells

...the HIV epidemic in sub-Saharan Africa; a third of pregnant women there are infected with HIV. The researchers...st city in KwaZulu-Natal, and HIV prevalence among pregnant women in the city exceeds 50 percent. The studies at the lab in South Africa found that PD-1 w...

A new tool against brain disease

...the HIV epidemic in sub-Saharan Africa; a third of pregnant women there are infected with HIV. The researchers...st city in KwaZulu-Natal, and HIV prevalence among pregnant women in the city exceeds 50 percent. The studies at the lab in South Africa found that PD-1 w...

Study finds that a woman's chances of having twins can be modified by diet

...studies Dr. Steinman found that women who become pregnant while breastfeeding are nine times more likely to conceive twins than women who are not breastfeeding at the time of conception. He also confirmed findings by others that identical twin sets are more often female than male, especially in conjoined tw...

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