Tag: "female" at biology news
Genetic mutations linked to the practice of burning coal in homes in China
...co smoking is rare in women from Xuan Wei, yet the female
population has an abnormally high lung cancer death rate," said Dr. Keohavong. "Women in this region traditionally start the fires and cook, spending more time inside homes that lack ventilation. As a result, they are more likely to be exposed to pot...
EMBO Gold Medal 2004 goes to Spanish scientist
...t Spanish scientist to receive this prize and as a female
scientist, I hope my achievement will inspire other women in science to persevere in their career." Frank Gannon, Executive Director of EMBO said: "EMBO is about advancing the biosciences in Europe. This means maintaining quality and momentum in rese...
Females may be more susceptible to overindulge 'sweet tooth' cravings than males
...ormal diet when a sweet diet is freely available, female
rats consumed more calories per day than male rats...ed with the exercise was much less dramatic in the female
rats, and unlike male rats, female
rats exercised less when sweet foods were available than when sw...
Poplar DNA code cracked -- a step in combating global warming?
...rmine the poplar's genome. To do this, they used a female
poplar from the banks of the Nisqually River in Washington state (USA). The researchers needed just over two years to determine the 520 million base pairs, distributed among 19 chromosomes. By comparing the genomes of these two model organisms - Pop...
European common frog found to use novel mating strategy
...ward breeding strategy -- one lucky male grabs the female
and fertilizes her eggs as soon as she releases th...issue of Nature . Vieites also noticed a possible female
response to this so-called "clutch piracy." Many females delayed release of their eggs until no othe...
Genetic analysis rewrites salamander's evolutionary history
...om the mother, and therefore represent an unbroken female
chain going back perhaps 100-150 million years in plethodontid salamanders. By looking at mutations in the mitochondrial DNA, biologists can infer the pattern of evolution. "What is happening now is that by focusing on mitochondrial genes and adding ...
New treatment for fibromyalgia
...rom pervasive pain to tiredness to tenderness--the female
fibromyalgia patients treated with duloxetine improved significantly over those treated with a placebo. One of the most dramatic changes was in the reduction of the number of tender points--places on the body where it hurts to touch--and the increase...
NJIT professor receives Presidential Award for breakthrough research with adult stem cells
A young female
African-American professor at New Jersey Institute of Technology (NJIT) was recognized today by President Bush for research showing that adult stem cells could help patients suffering from spinal cord injuries, bone and cartilage damage and related d...
New evidence of radiation risk in childhood leukaemia
...generation of offspring, through both the male and female
germ-lines. Dubrova and his colleagues developed a novel, effective method for monitoring radiation-induced mutation in humans and studied germ-line mutation among families from rural areas of Ukraine and Belarus, both of which were heavily contamin...
Identifying tick genes could halt disease, bioterrorism threat
...the blood to grow from egg to adult, and the adult female
needs the blood to nourish her eggs. In the case of Lyme disease-carrying deer ticks, the larvae feed on infected white-footed mice and other small mammals that harbor the pathogens. The tick develops into a nymph, which carries the Lyme disease-prod...
Veterinarians discover first known case of canine distemper in a wild tiger
...CS Siberian Tiger Project, confirmed that an adult female
tigress that wandered into a Russian town exhibiting abnormal behavior had the disease, which is fatal in cats. It is suspected that the tiger caught the disease from an infected domestic dog. Despite heroic efforts to save her, the tiger died. "Wi...
APS awards more than $140,000 to minority students of physiology
...f environmentally relevant doses of uranium on the female
reproductive system. Studies conducted in her lab suggest that uranium acts like the hormone estrogen by eliciting estrogen-sensitive responses in uterine tissue. She plans to investigate the mechanisms through which uranium elicits these responses...
OHSU-VAMC study sheds light on estrogen's benefit for MS
...e" drugs that could increase the cells without the female
hormone's side effects. "Dr. Offner and her research team have made a major breakthrough in understanding how estrogens help MS," Bourdette said. "This breakthrough will provide a critical 'tool' for developing these new estrogen-like drugs." The stu...
Two warbler species find the West isn't big enough for both of them
... when the quality of habitat declines, leaving the female
with a choice on which her survival could depend. "In low-quality habitat, Townsend's males are more able to attract females than hermits are," Butler said. "And that research is done in the hybrid zone, where there are both types."...
Circadian clock genes reign in duration of fruit fly copulation
...rparts. The effect is sex-specific, because mutant female
flies copulating with normal males did not show a similar change in behavior. Both the period and timeless genes are evolutionarily conserved components of the molecular circadian clock mechanism and are present in diverse species including humans. ...
Length of sex act in flies dictated by genetics
...y that when these genes are missing, both male and female
fruit flies produce less sperm and eggs, and are less fertile. In the course of this research on fecundity, a graduate student in Giebultowicz's lab, Laura Beaver, was observing flies in mating chambers, and noticed that flies missing normal period o...
Nevada researcher re-ignites mammal reproduction debate
...s where there is an ample food supply. Conversely, female
mammals living in less desirable conditions would tend to have female
offspring. According to Cameron, the hypothesis demonstrated the idea that having more male offspri...
Biologists deciphering complex lemur scent language
...nd produces a thick brown paste. And both male and female
genital glands produce a sticky goo that females m... and which might have an effect on the message the female
is encoding." Scordato performed two kinds of studies to understand lemur scent communications. She...
Coordinating power of circadian rhythms keeps estrus and pregnancy on track
...trol complex events such as reproduction, which in female
mammals requires precise but dynamic regulation of...internal clock, researchers have shown that normal female
reproductive function depends on an intact biological clock. It had previously been known th...
Sex pheromone blocked in bug
... a scarab beetle by blockingits ability to pick up female
scent, according to Walter Leal,professor of entom...disease-carrying mosquitoes, he said. For example, female
mosquitoesfind hosts by smell and use pheromones to guide other females to goodegg-laying sites....
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