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Tag: "based" at biology news

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...xposed to two cigarettes per day, the equivalent – based on blood levels of tobacco by-products – of an average human smoker, according to research previously published by one of the study's co-authors. Yauk and her colleagues found that the rate of Ms6-hm mutations in the smoking mice were 1.4 times hi...

CSIRO scientists join fight to save 'Tassie devil'

...together to develop a pre-clinical diagnostic test based on recent developments in the diagnosis of human breast cancer,” Dr Church said. “Such a test would enable the screening of captured animals prior to their release into the wild or placement into isolated breeding populations.” Dr Church and his team...

The insect vector always bites twice

...l saliva of the culprit vector. This approach, based on the studies of malaria transmission by mosquitoes of the genus Anopheles and human African trypanosomiasis (sleeping sickness) by Glossinia species or tsetse flies, revealed that the antibody response can represent a good indicator of the degree o...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...d this turns out not to be as vital as PfCRT. Now, based in part on this study, they know that PfMDR1 is de...ted States started massive drug discovery programs based on the toll the parasite was having on soldiers − more U.S. soldiers died from malaria in the Paci...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

... wondered if local animal cultures exist, and now, based on findings by researchers at the Yerkes National Primate Research Center at Emory University, the University of Texas and St. Andrews University, Scotland, they have their answer: Yes. The study, available in today’s online edition of Current Biol...

Breakthrough developments in rheumatoid arthritis reported

...P levels to see whether there is a way to predict, based on these measurements, who will go on to develop rheumatoid arthritis. Ultimately, understanding how the genes work to confer illness will help in the development of new treatments. Normal Control Genetic Database In addition, The Fein...

'Lucky 13' as new gene discovery offers further hope for childhood blindness

...tore their sight. The finding of the new LCA gene, based on work funded by the Wellcome Trust and local charity Yorkshire Eye Research, appears in this month's edition of the journal Nature Genetics. The newly-discovered gene, LCA5, is involved in the production of lebercilin, an essential component of ...

Now, self-healing materials can mimic human skin, healing again and again

...vercome by implementing a new microvascular design based on dual networks, the researchers suggest. The improved design would allow new healing chemistries – such as two-part epoxies – to be exploited, which could ultimately lead to unlimited healing capability. “Currently, the material can heal cracks i...

Newly discovered antibody may be body's natural defense against Alzheimer's

...Relkin explains. "We couldn't readily explain this based on the low levels of anti-amyloid antibodies known...lity of the antibodies to recognize toxic proteins based on their shape may have important implications for immune therapy of other neurologic disorders, the...

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

... has found an explanation for the random selection based on thermodynamics. Research has already shown that at the key moment in this process both X chromosomes are brought close together within the cell. The Warwick researcher paper says that what happens next is that material for a "protein plug" then be...

Massive herds of animals found to still exist in Southern Sudan

...ing for the creation of a Sudano-Sahel Initiative, based on the model of the Congo Basin Forest Partnership, to foster wise natural resource management in a region of great global conservation value and strategic importance beset by conflict over resources. “The significance of this find and the critica...

Progress toward an antitumor vaccine

... in the journal Angewandte Chemie, their method is based on an immunocompatible connection by way of a sulfur atom, namely, a thioether. Epithelial tumor cells have unusually large amounts of mucin MUC1 on their surface. This MUC1, in comparison with its “normal” cousins, is also modified in a very char...

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

... York, who authored the study. The findings are based on interviews with 111 students at St. Lawrence University. The amount of sleep a person gets affects his or her physical health, emotional well-being, mental abilities, productivity and performance. Recent studies associate lack of sleep with se...

Marine phytoplankton changes form to protect itself from different predators

...will enhance or suppress the formation of colonies based on whether nearby grazers prefer eating large or small particles. “Based on chemical signals from attacked neighbors, Phaeocystis globosa enhances colony formation if that’s the best thing to do for survival, or it suppresses the formation of colo...

Research finds that circadian rhythms dominate all life functions

...shows that the function of all genes in mammals is based on circadian -- or daily -- rhythms. The study, publishing in PLoS Computational Biology on June 15, refutes the current theory that only 10 percent to 15 percent of all genes were affected by nature's clock. While scientists have long known that cir...

Runners -- Let thirst be your guide

... that is necessary to drink for good health is not based on real factual data,” he says. “Many in our society have promoted the idea that you need to continually drink a large amount of fluid, such as 8 ounces of water eight times a day. But most people don’t really need that much.” Verbalis points ou...

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

...s paved the way for the development of a treatment based on insulin injections. Yet, despite enormous research efforts led by scientists worldwide, the cellular function of numerous proteins is still unknown. To reveal this function, scientists perform various genetic manipulations to increase or, converse...

Electric fish conduct electric duets in aquatic courtship

...tudy to successfully sort signals in electric fish based on sex. The research, which is the cover story ...s for separating and documenting electrical pulses based on sex. They video recorded four pair of mating mormyrids (a feat in itself, since the species rarel...

Study identifies 5 genetic themes key to keeping stem cells in a primitive, flexible state

...r more than 25 years, stem cells have been defined based on what they can become: more of themselves, as we... sought a more molecular definition of stem cells, based on the genes they express. Now, a team of Canadian scientists has identified 1,155 genes under the...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

... Kyrkanides’ team chose to work first with vectors based on feline immunodeficiency virus (FIV), a lentivir...he University of Torino, Italy, was also an author based on an alliance between the two institutions. The study was funded in part by the National Institute ...

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