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Tag: "they" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...sed," Dr. Plant said. "However, it's unlikely that they act alone. Other signaling systems, some of which ...chers also found that by giving animals kisspeptin they could, essentially wake up the reproductive hormones from their childhood hibernation. Within 30 min...

Bioartificial kidney under study at MCG

...ucts and correct abnormalities in blood chemistry; they don't replace kidney function, " says Dr. Szerlip. The kidneys also secrete hormones, help determine how the body metabolizes calcium and phosphorus, stimulate red blood cell production, play a role in blood pressure regulation and clear and metabol...

Wisconsin scientists grow critical nerve cells

...ersity of Wisconsin-Madison, are important because they provide critical guideposts for scientists trying ... making motor neurons, Zhang believes, may be that they are one of the earliest neural structures to emerge in a developing embryo. With the ticking clock o...

New push for public health, AIDS spending at African Union summit

...h issue but a development issue," she said. "Now they have to deliver on the existing protocols and develop a serious and practical strategy." Mozambique is the only country that has, thus far, committed to allocating 15 per cent of its gross domestic product to healthcare in the four years since the g...

Association of herpesvirus with lung disorder questioned

...w available online. The researchers reported that they were not able to detect human herpesvirus 8 (HHV-8), also known as the Kaposi's sarcoma virus, in the lungs of 22 patients with primary or other forms of pulmonary hypertension. These observations, by Harutaka Katano and colleagues from Toho Universi...

Man and mouse share genome structures

...nome. To investigate the much larger human genome, they collaborated with Affymetrix. They isolated the DN...uences associated with the tagged chromatin. Next, they teamed up with Michael Kamal, the co-first author of the paper, Eric Lander, and their Broad Institu...

Adding Radiation Therapy To Chemotherapy Improves Survival In Patients With High-risk Breast Cancer

... trial be mounted to resolve these uncertainties," they write. ...

Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down

... trial be mounted to resolve these uncertainties," they write. ...

Jump-starting T Cells In Skin Cancer

...th tumor proteins. How these vaccines work and why they are only effective in some patients remains unclea...tack the tumor. In an unexpected finding, however, they discovered that that these cells mostly recognize tumor proteins that were not contained in the vacc...

Molecular biology fills gaps in knowledge of bat evolution

...s our understanding of where bats originated, when they diversified and how different bat families are related to each other," Springer said. "It also quantifies the fraction of the fossil record that is missing for bats." The team, using DNA sequencing, analyzed data from portions of 17 nuclear genes fr...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

...dairy products, butter, and palm and coconut oils; they are associated with higher risk of coronary disease. The healthier polyunsaturated fats are those that remain liquid at room temperature, such as various types of vegetable oils. Trans-unsaturated fatty acids, or trans fats, are artificially produce...

A new mechanism of regulating RNA degradation

...sGroseillers, Ph.D. at the University of Montreal, they found that Staufen1 protein binds to numerous RNAs. Downregulating the amount of Staufen or Upf1 increased the half-life of these RNAs. Significantly, altering the amount of another NMD factor didn't affect these RNAs. Thus, Staufen1 and Upf1, toget...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...sGroseillers, Ph.D. at the University of Montreal, they found that Staufen1 protein binds to numerous RNAs. Downregulating the amount of Staufen or Upf1 increased the half-life of these RNAs. Significantly, altering the amount of another NMD factor didn't affect these RNAs. Thus, Staufen1 and Upf1, toget...

Deficient DNA Repair Capacity Associated With Increased Risk Of Breast Cancer

...entions to reduce cancer incidence and mortality," they write. ...

Spleen may be source of versatile stem cells

...tence of these splenic stem cells andalso suggests they may be able to produce an even greater variety oft...ly cured thedisease in diabetic mice. Late in 2003 they reported the mechanismbehind the earlier discovery: cells from the spleens of donor mice -intended t...

Genes In The Interferon System Important In Systemic Lupus Erythematosus

... also behind the autoimmune diseaseSLE. Since then they have shown the importance of the interferon systemin a number of works. This has led to the recognition of theirhypothesis in the last year, and today it represents a white-hot fieldof research that has attracted a great deal of interest in thepharma...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

... the Earth's crust because the strategies by which they survive may be similar to the earliest strategies ...the grand scheme of things," said Haymon. "Indeed, they are the greatest biomass on the planet. They are strongly implicated as the earliest life here and p...

UAB scientists discover the origin of a mysterious physical force

...olecules, such as DNA and other biomolecules, when they are very close to each other in aqueous media. Thi...ential, since the form these proteins take on when they fold influences how effectively they are able to act. Fully understanding the properties of this fo...

Researchers discover way to make cells in the eye sensitive to light

...lary response was thesame as normal mice, but when they were exposed to bright light theirpupil constriction was incomplete.The researchers believe that while not a cure for blindness, thefindings could lead to therapies for treating some forms of blindness,such as retinitis pigmentosa. Retinitis pigmento...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...d his team have made isthe innovative way in which they are able to pre-determine the size andshape of the tissue or bone grown.Using the printers, they are able create 3-dimensional structures,known as 'tissue scaffolds'. The shape of the scaffold dete...

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