Tag: "mother" at biology news

A unique arrangement for egg cell division

...g, 09 August 2007 - Which genes are passed on from mother to child is decided very early on during the maturation of the egg cell in the ovary. In a cell division process that is unique to egg cells, half of the chromosomes are eliminated from the egg before it is fertilised. Using a powerful microscope, re...

Other highlights in the Aug. 7 JNCI

...ting means the copy of IGF2 that you get from your mother (which is usually turned off) is activated. This unusual activation occurs in about half of all Wilms tumors. Andrew Feinberg, M.D., of Johns Hopkins University in Baltimore and colleagues studied 59 Wilms tumor samples to determine whether this lo...

Computer graphics spills from milk to medicine

...d the students from Denmark also called upon their mother tongue, Danish, to pick apart a little-known paper published in 1890 in Denmark by the physicist Ludvig Lorenz, one of the two namesakes of the Lorenz-Mie theory. The report clearly outlined the math and many of the assumptions that are central to Lo...

Discredited Korean embryonic stem cells' true origins revealed

...paired sets of chromosomes, one inherited from the mother and the other from the father. During the process of parthenogenesis, one set of chromosomes is duplicated, resulting in both chromosomes of the pair being of one parental type or the other (a pattern called homozygosity, which has reduced genetic di...

Rare example of Darwinism seen in action

... genetic arms race going on between a live-bearing mother and her offspring, assisted by the growth-promotin...placenta, genetic material from the father and the mother promote different growth rates in the embryo, producing a conflict over nutrients. The placenta is...

Negative effects of plastic's additive blocked by nutrient supplements

...onal and tantalizing evidence that what a pregnant mother eats can make her offspring more susceptible to disease later in life. This susceptibility is the result of a process that alters how a gene is expressed without actually changing or mutating the gene itself. Appreciation of this phenomenon has spa...

Smithsonian's National Zoo researchers use electronic eggs to help save threatened species

... The telemetric egg, placed in the nest after the mother has laid her eggs, contains sensors that record te...terior. Motion detectors record how frequently the mother turns the egg during incubation. The data are recorded 24 hours a day and downloaded to a computer e...

CTRC enrolls first patients in novel phase II study for sarcoma -- living virus destroys cancer cell

... the fight against my cancer, said the 35-year-old mother of three who travels to San Antonio for treatment with her husband and children. Before coming to CTRC, I had already been through one chemotherapy cycle for this disease, and I got the impression that no one really knew what to do with me or how to...

Ethnicity plays a role in neonatal deaths

...ICUs. Ethnicity was reported as ethnic race of the mother on the medical records, categorized as Caucasian, African, South Asian, Aboriginal, Hispanic or other....

New clue into how diet and exercise enhance longevity

...ls. Our findings put a mechanism behind what your mother told when you were growing upeat a good diet and exercise, and it will keep you healthy, said White. Diet, exercise and lower weight keep your peripheral tissues sensitive to insulin. That reduces the amount and duration of insulin secretion needed t...

Fruit fly research may 'clean up' conventional impressions of biology

... thousands, each of which awaits a signal from the mother to form itself into a specialized cell. This signal arrives in the form of a droplet of protein called Bicoid that enters the embryo at one end and, like food coloring in water, diffuses out molecule by molecule through the nuclei. The concentration ...

Clues to future evolution of HIV come from African green monkeys

...an green monkeys. Mitochondrial DNA is passed from mother to child. The four green monkeys he studied are the sabaeus monkey, Chlorocebus sabaeus, which lives in western Africa; the tantalus monkey, Chlorocebus tantalus, which is found in central Africa; the vervet monkey, Chlorocebus pygerythrus, which ...

Adding folic acid to flour significantly reduces congenital malformations

... diet wont supply enough folic acid for a pregnant mother and the child she is carrying. Before1998, Canadian medical authorities were already recommending that women in their child-bearing years consume vitamin supplements containing folic acid. Canada decided to add folic acid to all flour produced in the...

Researchers witness natural selection at work in dramatic comeback of male butterflies

... Wolbachia bacteria, which is passed down from the mother and selectively kills males before they have a chance to hatch. "To my knowledge, this is the fastest evolutionary change that has ever been observed," said Sylvain Charlat, lead author of the study and a post-doctoral researcher with joint appoint...

Chickens also orient themselves by the Earth's magnetic field

...taught the chickens by intensive training that the mother was always behind the screen that was in the north...irection and the chickens did actually seek their mother behind the screen that lay to the east. Further experiments showed that the chickens magnetic sen...

Common environmental chemicals in diet affect fetal ovarian development

... found that the ovaries from the fetuses where the mother was grazing the sewage sludge fields contained fewer eggs and also a number of protein abnormalities. These differences could have implications for problems such as cancer in later life. The scientists hope that their Wellcome Trust-funded study wi...

Time-lapse recordings reveal why IVF embryos are more likely to develop into twins

...n when only one embryo had been transferred to the mother (approximately 21 pairs per thousand deliveries). ...wins, or, if the choice of embryos is limited, the mother could be prepared for the likelihood of twins and given appropriate clinical advice. In addition,...

Breast cancer prognosis runs in the family

...unlikely to have biased the findings. Women with a mother or sister who has had breast cancer are also likely to be more aware of the disease, making delays in seeking treatment unlikely. As well as genetics, other risk factors such as obesity and hormone replacement therapy probably play a role in the inci...

Cord blood may preserve insulin levels in children with type 1 diabetes

...stop rejection of the placenta of the child to the mother during pregnancy, and these are likely to be the ones which are useful for treatment in type 1 diabetes. Together with our work, showing that beta cells producing insulin can be formed using cord blood, we are on track to help diabetes patients in th...

Fine particulate matter from traffic may influence birth weight

...ar, maternal smoking, the height and weight of the mother before pregnancy, the educational level of the mothers as well as the duration of the pregnancy and the childs gender could be controlled for. The proportion of newborns with a birth weight below 3,000 grams increased with increasing concentrations...

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(Date:10/16/2014)... have a new synthesis of recent research findings to ... in the two states. , The Ecology and ... Washington: A Synthesis of the Relevant Biophysical Science and ... published by the U.S. Forest Service,s Pacific Northwest Research ... managers for a synthesis of the large body of ...
(Date:10/16/2014)... efficiently, they are anything but sustainable: environmental damage ... is becoming increasingly evident. Despite their disadvantages, however, ... regarded as the sole possibility of achieving higher ... Bernhard Schmid, an ecology professor at the University ... agriculture and forestry. After all, a new study ...
(Date:10/16/2014)... Calif. (October 16, 2014) – Post-menopausal women experienced ... on hormone levels or genital bleeding, after 12 ... an investigational fermented soy germ-based nutritional supplement previously ... to a new peer-reviewed pilot study reported in ... (NAMS) annual scientific meeting. , "These data ...
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