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Tag: "increased" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

Anxious or depressed mothers-to-be are at increased risk of having children who will experience sleep ...ies now show that stress, which is associated with increased exposure stress hormones, like cortisol, may disrupt a childs formation of a bundle of nerve cells i...

Releasing fish for the future

...ve hooks swallowed by mulloway and yellowfin bream increased their survival from 12 percent to more than 85 percent. “Up to 76 percent of the released line-cut, gut-hooked yellowfin bream then shed their hooks over an average of three weeks”, he said. ...

Liver cancer patients with high serum levels of hepatitis B virus face poorer outcomes

...chemotherapy levels of HBV DNA had a significantly increased incidence of severe hepatitis which was associated with the worst survival. The article is also available online at Wiley Interscience ( http://www.interscience.wiley.com/journal/hepatology ). HBV is associated with a more than 200-fold increase in ...

Research team identifies new Alzheimer's gene

...esearchers silenced GAB2 in preliminary studies it increased a molecular process thought to play an important role in the development of tangles. Based on these findings, the researchers hypothesize that GAB2 might function under normal conditions to compensate for the harmful effects of APOE4 and other genes ...

Dirty snow may warm Arctic as much as greenhouse gases

...ause of human activity, greenhouse gas levels have increased by one-third in the last two centuries. “A one-third change in concentration is huge, yet the Earth has only warmed about .8 degrees because the effect is distributed globally,” Zender said. “A small amount of snow impurities in the Arctic have ca...

Pesticides choke pathway for nature to produce nitrogen for crops

... this natural fertilizer source is not replaced by increased application of synthetic nitrogen fertilizer, then crop yields are reduced and/or more growing time is needed for these crops to reach the yields obtained by untreated crops. We feel that this is a previously unforeseen factor contributing to declini...

New study finds genetically engineered crops could play a role in sustainable agriculture

Genetically modified (GM) crops may contribute to increased productivity in sustainable agriculture, according to a groundbreaking study published in the June 8 issue of the journal Science. The study analyzes, for the first time, environmental impact data from field experiments all over the world, involving...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...rust. “The three skin cancers we looked at all increased with age, with the exception of malignant melanoma...etween more patients living in wealthier areas and increased levels of malignant melanomas and basal cell carcinomas.” The team looked at data collected by th...

Researchers shed light on mechanism of action used by anti-cancer drug

...nd which helps to resolve stresses associated with increased protein loads. The net effect of these actions was to induce a shutdown of protein synthesis accompanied by a dramatic increase in cell death. “The notion that sorafenib acts by inhibiting protein synthesis and reducing expression of Mcl-1 sugges...

ASU research shows connection between testosterone, dietary antioxidants and bird coloration

...in human men, perhaps they too could benefit from increased carotenoid intake, say, by eating more corn,” he said. “This study certainly opens the door for future work on nutritional/antioxidant therapy for the hormonally immunocompromised,” McGraw added. “The interface between diet and health in animals...

Study shows lizard moms dress their children for success

...o resolve this problem. In one pathway, females increased the amount of estradiol to their eggs when their mate had a yellow throat. The hormone induced a barred back pattern in yellow-throated offspring. The barred pattern was not induced in non-yellow progeny. In the other pathway, the extra hormone w...

Women well informed about breast cancer, yet lacking knowledge about current treatments

...east cancer awareness through public education and increased media coverage, women with breast cancer would benefit from more information about advances in treatments after surgery.” According to the survey, nearly all respondents were aware of chemotherapy and radiation. However, fewer than one out of fou...

Small, self-controlled planes combine plant pathology and engineering

...ide the borders of the country,” Schmale said. “An increased understanding of the dynamics of plant pathogens in the atmosphere is essential for establishing effective quarantine measures, preventing the spread of plant disease, and mitigating potentially damaging events targeted at our nation’s agriculture an...

College students who pull 'all-nighters' and get no sleep more likely to have a lower GPA

...k of sleep with serious health problems such as an increased risk of depression, obesity, cardiovascular disease and diabetes. ...

Researchers demonstrate way to control tree height

...so appeared to be very strong, which might provide increased stress tolerance and have value where extensive root development is needed, such as in bioremediation of polluted soils or in very windy, limited soil moisture situations. From an environmental viewpoint, the researchers said, dwarfed trees such a...

Weizmann Institute scientists develop a general 'control switch' for protein activity

...d that in some of the engineered proteins the drug increased the activity level, while in others this activity was reduced. Says Prof. Liscovitch: “We were surprised by the effectiveness of the method – it turns out that a small set of engineered proteins is needed to find the ones that respond to the drug. Wi...

Fat fish put obesity on the hook

... adults aged 20–74 years the prevalence of obesity increased from 15.0% (1976–1980) to 32.9% (2003–2004). For c...ldren aged 2–5 years, the prevalence of overweight increased from 5.0% to 13.9%; for those aged 6–11 years, prevalence increased from 6.5% to 18.8%; and for thos...

Children of smokers have more than 5 times higher levels of a nicotine toxin

... lower temperature rooms were also associated with increased amounts of cotinine. Cotinine was measured in 100 urine samples taken from infants aged 12 weeks. Seventy one of the babies had at least one parent that smoked and the parents of the other 33 were non-smokers. The authors say: ‘Smoking babie...

The mouflons of the Kerguelen archipelago

...s demonstrated that the animals’ genetic diversity increased over time, contrary to what the usual models predict. These results contradict the belief that a population descended from a small number of individuals will exhibit numerous deficiencies and reduced genetic diversity. http://www.video.uqam.ca/kergu...

Smoking rate has plummeted in New York City

...and after a decade with no progress, New York City increased the tobacco tax, eliminated smoking in virtually all workplaces, and launched hard-hitting anti-tobacco ads. By all indications, the interventions have made a difference. “Hard-hitting ads work,” said Health Commissioner Dr. Thomas R. Frieden -- “esp...

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