Tag: "maternal" at biology news

Pregnant mom's exposure to flu vaccine kick-starts fetal immune system

...cord blood B and T cell immune responses following maternal vaccination against influenza with Fluzone during ...ell responses to antigens occur in utero following maternal vaccination against influenza, supporting the theory that the human neonatal immune system is not de...

Snoring in children might be an allergic type disease

...with rhinitis who were first born, were exposed to maternal tobacco smoke during the first year of life and/or who had asthma and/or eczema at age five years were more likely to snore. Breastfeeding, birth weight, body mass index at age 4.5 years and respiratory function whilst awake were found to be unrel...

Physicist cracks women's random but always lucky choice of X chromosome

...age. The mechanism means equal numbers of both the maternal and paternal X chromosome are preserved in the gene pool and the resultant population thus has more chance of surviving any biological threat targeted at a single version of the X chromosome....

Study shows lizard moms dress their children for success

...ductive strategies. According to Lancaster, the maternal effect on back pattern is important because surviv...for these traits, and it's really hard to tell the maternal effects apart from the effects of the genes," he said. Lancaster began by treating side-blotched ...

Resistant HIV quickly hides in infants' cells

... he pointed out, "since transplacental transfer of maternal antibodies precludes the use of antibody detection methods." Affordable techniques also are necessary to reliably detect resistant HIV in less affluent areas of the world. SUGGESTED "FAST FACTS": Five of 21 HIV-positive infants in this...

Simple home spit test to spot deadly pre-eclampsia

...pitals. Pre-eclampsia is also a leading cause of maternal mortality, killing one woman globally every six seconds, according to the UK's Action on Pre-eclampsia (APEC). Earlier detection and intervention could save lives. Standard blood pressure and urine tests are unreliable, and there is a lot of scope...

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

...and the lowest for Aug-Sept (10.79%) regardless of maternal age, race, education, marital status, alcohol or cigarette use, or whether the mother was an urban, suburban or rural resident. Pesticide and nitrate levels in surface water were also highest in May-June and lowest in August –September, according to ...

Hepatitis E takes a piggyback

...ntract the virus in their first 30 days, because a maternal antibody protects them. Vaccines are currently under development against HEV, although Satou and Nishiura suggest that changes in husbandry practices and avoiding eating raw liver might be more cost-effective measures should HEV’s hold on pig farms w...

Study shows dramatic increase in Caesarean sections

... said. "From the analysis it is clear that both maternal age and affluence are factors in the increasing ra...elivery," Dr Pennell said. "The degree to which maternal request accounts for the increase in caesarean sections isn't known, but similar studies in the UK h...

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

... is clear. "When siblings in a litter vary in sex, maternal investment should be sex-specific, meaning that the male foetus grows bigger than the female. However, it seems there are limitations in the ability of the mother to provision mixed twin litters in the womb," she said. The researchers point out t...

Horse genome assembled

...than 25 years to study the mechanisms that prevent maternal immunological recognition and destruction of the developing fetus during mammalian pregnancy. The research, conducted by Cornell professor Doug Antczak, V.M.D, Ph.D., and funded by the National Institute of Child Health and Human Development, has imp...

Vitamin D deficiency widespread during pregnancy

...Research Institute (MWRI). "Not surprisingly, poor maternal vitamin D status during pregnancy is a major risk ...Prevention Study between 1997 and 2001. Samples of maternal blood were collected prior to 22 weeks pregnancy and again just before delivery, Samples of newborn ...

A potential biological cause for sudden infant death syndrome

... fetal development, and that prenatal insults like maternal smoking and alcohol use may adversely affect development of the brainstem serotonin system during this time. More research is needed to explain what causes the abnormalities and how they can be prevented. The findings also provide a biological ...

Low levels of neurotransmitter serotonin may perpetuate child abuse across generations

...hat when baby rhesus monkeys endured high rates of maternal rejection and mild abuse in their first month of l...w that naturally occurring individual variation in maternal behavior in monkeys can affect the brain development of the offspring, and the first to show a link ...

Underweight women at greater risk of miscarriage

...f well-established risk factors, such as increased maternal age, a previous history of miscarriage, and infert...risk factors, for example in relation to increased maternal age and alcohol consumption, but they also revealed a number of interesting new associations. The...

Older fathers more likely to have autistic children

... of 6.5 per 10,000) and 110 in the group with both maternal and paternal ages (8.3 per 10,000) had a diagnosis of autism spectrum disorder, according to the information in the draft board registry. Among the paternal age groups of 15 to 29 years, 30 to 39 years, 40 to 49 years and older than 50 years, there ...

Molecules in blood foretell development of preeclampsia

...e disorder." Preeclampsia is a leading cause of maternal death and often occurs without warning. The condition results in high blood pressure and protein in the urine. Preeclampsia may begin with mild symptoms, then progress to severe preeclampsia and to eclampsia--dangerously high blood pressure and conv...

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...ed in more deaths in 2005 than infectious disease, maternal and perinatal conditions, and nutritional deficiencies combined. The authors say low and middle income countries as a group report 80% of all chronic disease deaths, over 95% of deaths due to infectious disease, and almost 90% of deaths due to injur...

Few clues about African ancestry to be found in mitochondrial DNA

... interest in the use of mitochondrial DNA to trace maternal ancestries, and several companies now offer to analyse individuals' mitochondrial DNA sequences to obtain information about their origins. The current study suggests that only one in nine African Americans may be able to find clues about where their ...

Down syndrome: It's not just the age factor

... frequency of trisomic pregnancies with increasing maternal age. There is strong evidence for uterine selecti...t this relaxed filtering stringency is an adaptive maternal response and it might explain why the rate of Down Syndrome accelerates with increasing maternal age...

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