major 2 8

Tag: "major" at biology news

Mother birds increase progesterone to hatch females

...erone, but we decided to look at progesterone, the major hormone produced by the female bird's preovulatory follicle." To test the influence of progesterone on the sex ratio of offspring, Correa, along with Elizabeth Adkins-Regan, professor of neurobiology and behavior and of psychology, and Patricia John...

Cousin of Asian super termite invades Florida

...a researchers. "The Asian subterranean termite, a major pest in tropical areas such as Brazil and the West Indies, was not considered to be a serious threat to Florida until now," said Nan-Yao Su, a professor of entomology with UF's Institute of Food and Agricultural Sciences, or UF/IFAS. "I thought it co...

Newly Discovered 'Branding' Process Helps Immune System Cells Pick Their Fights

...ds to pathogens after they interact with the other major branch, the innate immune system. T cells kill pathogens or produce molecules like cytokines that stop their growth. Scientists have known for some time that a second class of innate immune system cells known as antigen-presenting cells helps T cell...

Prescription Drug Patches Gaining Ground, Tackling New Therapies

... trend underpinnings. Technology has also played a major role in prescription patch growth. Advances in synthetic materials and patch design have led to patches that are more esthetically acceptable and that are capable of delivering sustained dosing of active compounds for several days in a smaller packag...

Gov't Creates Gene Database of Normal Human Tissues

...ts which genes are expressed in many of the body's major organs under normal conditions, without known disease. Scientists can compare the genes from their own biological samples to this dictionary of normal expression. "Genes identified by the database as abnormally active in a particular disease could b...

Alarm pheromone causes aphids to sprout wings

...ants. Thus, to reduce damage caused by aphids, the major insect pests in Europe, it may prove effective to apply pulses of alarm pheromone to infested fields. ...

Primates on the brink

...nd the collection of fuel wood continues to be the major factor in the declining number of primates, accord... for subsistence and commercial purposes also is a major and insidious threat, especially in Africa and Asia. Live capture for the pet trade also poses a ser...

Research shows smoking adds a decade to reproductive age of IVF patients

A major new Dutch study has found that smoking adds the equivalent of ten years to a 20-year-old subfertile woman's reproductive age and has a "devastating" impact on a couples' chances of having a live birth after IVF. Being overweight also seriously damage...

Insects, viruses could hold key for better human teamwork in disasters

..., will apply their natural-world findings to three major areas: collaboration among organizations involved in disaster-relief efforts; the use of information technology to support preparedness, response and recovery tasks; and the emerging role of civil engineers as key first responders to disasters. The ...

Next Generation Body Scanner Launched By The University Of Manchester

...rying out work into mental illness and will play a major role in the University's research into schizophren...ll lead to improvements in diagnosing and treating major conditions such as stroke, cancer and mental illness. Of course, this will be of huge benefit to p...

While on trail of dioxin, scientists pinpoint cancer target of green tea

...other substances like cigarette smoke manipulate a major cancer-causing molecule, the aryl hydrocarbon (AH) receptor, which frequently plays a role in turning on genes that are oftentimes harmful. Two years ago the team discovered that AH activity is inhibited by a chemical found in white and green teas, ...

Rabies spread speeds up

...hors incorporated the likely effect of Ohio's five major rivers on transmission from local points along the Pennsylvania or West Virginia border but also adjusted their model to estimate the potential impact of long distant translocations, such as the occasional garbage truck ride. They estimated that rabi...

Scientists identify genes responsible for 'black rot' disease in vegetables

Scientists at four major genomics and plant pathology laboratories in China...cant rearrangements between the genomes, including major translocations, inversions, insertions, and deletions. In order to functionally characterize Xcc an...

Columbia study shows widely used artery clearing device does not help patients during heart attack

...art attack, patients had a comparable frequency of major adverse cardiac events regardless of whether or not they received the treatment. The study also measured the size of the heart attacks by measuring the uptake of a tracer in the heart, and found that there was no difference for patients who received...

Researchers test new therapy for advanced melanoma

...ariety of potential targets for treatment, but its major limitation has been getting the gene into the cancer. If electroporation can deliver the gene to these tumors reliably and without serious side effects, melanoma and other cancers would be open to many new treatment possibilities." Six years of labo...

Pair of cancer genes found to drive both cell migration and division

...l can make PIP3 even when PI3K is missing, but the major way to break it down is by using PTEN. So if PTEN isn't there to destroy PIP3 at the furrow, the halves can't pull apart," says Chris Janetopoulos, Ph.D., a research associate in Devreotes's lab and first author on the paper. The cells' problems were...

Virologists make major step towards understanding the process of HIV infection

...g replication and when it leaves a cell. This is a major step towards understanding the process of HIV infection. Modern imaging technologies facilitate real-time observation of virus-cell interactions. Many of these investigation methods require labeling of the object of interest, such as by introducing ...

New Species of Coral Discovered Off Southern California

...g replication and when it leaves a cell. This is a major step towards understanding the process of HIV infection. Modern imaging technologies facilitate real-time observation of virus-cell interactions. Many of these investigation methods require labeling of the object of interest, such as by introducing ...

Active Vaccine Prevents Mice From Developing Prion Disease

...the prion protein. "These technical issues are not major hurdles," says Dr. Wisniewski. "Developing a marketable vaccine for livestock is something that is very achievable." The authors of the new study are: Fernando Goñi, Elin Knudsen, Henrieta Scholtzova, Joanna Pankiewicz, Einar M. Sigurdsson, and Thom...

Second messenger NAADP shows fast, dose-related impact on satiety cycle

...op a truly successful obesity drug to address this major global health problem. Enter a recently discovered and already controversial natural molecule called nicotinic acid adenine dinucleotide phosphate (NAADP), which is active in cells from plants to humans. NAADP is thought to be a so-called "second me...

1 2 3 4 5 6 7 8 9 10