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Tag: "increasing" at biology news

Bird song changes sound alarm over habitat fragmentation

...tion of the differences between non-neighbours and increasing mimicry between neighbours. This suggests that males from fragmented habitats perceived as rivals only the close neighbours with which they engaged in counter-singing." "Communication systems of habitat-sensitive species might be used as a behaviour...

Pregnancy drugs can affect grandkids

...tion of the differences between non-neighbours and increasing mimicry between neighbours. This suggests that males from fragmented habitats perceived as rivals only the close neighbours with which they engaged in counter-singing." "Communication systems of habitat-sensitive species might be used as a behaviour...

Stem cell mobilization therapy appears to be ineffective in repairing damage caused by heart attack

...tudy in the March 1 issue of JAMA. There has been increasing evidence that stem cells contribute to regeneration of cardiac tissue and the development of new blood vessels following a heart attack, thus opening up new prospects for stem-cell based therapies. Granulocyte colony-stimulating factor (G-CSF, a grow...

Source of crucial immune cell in the skin discovered

...Csf-1, we may be able to enhance tumor vaccines by increasing the recruitment of Langerhans cell precursors to the skin," said Dr. Merad. Additionally, the researchers point out that the new findings hold promise for potential therapeutic for patients with a Langerhans histocytosis, a rare disease effecting ap...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

... "Simple steps, such as proper use of condoms and increasing the availability of sterile syringes, can make a major difference in fighting this epidemic," said Steffanie Strathdee, Ph.D., Chief of the Division of International Health and Cross-Cultural Medicine at UCSD, where the study was conducted. Other c...

Duke to test bird flu vaccine dosing

... aluminum hydroxide adjuvant. An adjuvant works by increasing the body's immune response to a vaccine, Walter said. Aluminum hydroxide is commonly used in pediatric and adult vaccines, including those for whooping cough, hepatitis A and hepatitis B. As with current flu vaccines given yearly in the U.S., the H5...

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...s large, say experts, as daily reports indicate an increasing spread of infection in bird populations in Southeast Asia, Europe, the Middle East and Africa. According to the World Health Organization, as of March 24, 2006, 186 people had been infected with avian flu viruses, and more than half of them had died....

Liver cancer linked to cellular repair pathway

...420 deaths. One reason for the rising rates is the increasing prevalence of obesity, which raises the risk of liver cancer five- to six-fold, said Anna Mae Diehl, M.D., chief of Duke's gastroenterology division and senior author on the study. The liver's attempts to repair itself and regenerate new tissue afte...

Researchers map of genetic variations implicated in disease

...rated by the new markers reported here. At an ever increasing rate, we are developing the necessary tools and sample collections to make a real difference to the study, diagnosis and, we hope, treatment of diseases such as TB, coronary heart disease, diabetes and rheumatoid arthritis." The MHC Haplotype Projec...

Canine cancer vaccine program shows early promise

...to take the next step in improving the vaccine and increasing the percentage of animals that respond, Kurzman says. According to Kurzman, the vaccine is created from dog melanoma cells that are grown in the laboratory. The cells are treated so they can no longer divide and cause a tumor. DNA is then inserte...

Underdogs in the understory: Study suggests nature favors rarer trees

... Even so, all the forests show the same pattern of increasing local diversity as trees age. The authors say rare trees may have an advantage because they are less vulnerable to animals, fungi, and microorganisms that prey on common trees and because they don't have the same resource needs as common trees. Tre...

'Bad' enzymes may wear white hats after stroke

...o, the drug can amplify the "bad" effects of MMPs, increasing the risk of swelling and bleeding. To further establish MMPs' role in healing stroke damage, first author Bing-Qiao Zhao used two naturally occurring proteins as markers for neurovascular remodeling.He had the group look for Egr1 and RECA-1, both o...

Climate change: The rice genome to the rescue

... warming will make rice crops less productive with increasing temperatures decreasing yields. "Clearly, climate change is going to have a major impact on our ability to grow rice," Robert S. Zeigler, IRRI director general, said. "We can't afford to sit back and be complacent about this because rice production ...

Cure for cancer worth $50 trillion

...lingness to pay for further health improvements by increasing the value of remaining life." Murphy and Topel also chart individual values resulting from the permanent reduction in mortality in several major diseases ?including heart disease, cancer, and diabetes. Overall, reductions in mortality from 1970 to 2...

Amazonian terra preta can transform poor soil into fertile

... can pull substantial amounts of carbon out of the increasing levels of carbon dioxide in the Earth's atmosphere, helping to prevent global warming. That's because terra preta is loaded with so-called bio-char -- similar to charcoal. "The knowledge that we can gain from studying the Amazonian dark earths, foun...

GPSDB, the free Gene and Protein Synonyms DataBase

... can pull substantial amounts of carbon out of the increasing levels of carbon dioxide in the Earth's atmosphere, helping to prevent global warming. That's because terra preta is loaded with so-called bio-char -- similar to charcoal. "The knowledge that we can gain from studying the Amazonian dark earths, foun...

Human albumin from tobacco plants

... an economically viable alternative, as it enables increasing the levels of HSA by between 10 and a 100 times, compared to levels obtained by nuclear transformation. The title of the PhD is: "Production of human serum albumin in tobacco plants by means of plastidial transformation". It should be added that th...

Boosting newborns' immune responses

...irth because they can trigger preterm labor, while increasing production of adenosine and IL-6, which may have a protective effect on the pregnancy. In 1999, Levy discovered that newborns are deficient in a natural antibiotic called bactericidal/permeability-increasing protein (BPI), produced by white blood...

Screening blood for West Nile virus

...icies would save large costs without significantly increasing the risk for blood recipients. Korves and collea...system, and to screen only those samples. Given an increasing number of people living with compromised immune systems (recipients of organ transplants, patients w...

Ocean virus identified in human blood samples

...sivirus and humans." "This research also shows an increasing prevalence of Vesivirus antibody in persons who have hepatitis of unknown cause," Smith said. "This suggests there is a broader potential for Vesivirus infection and illness in humans than previously recognized." Previous individual case reports hav...

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