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Tag: "suspected" at biology news

Newer imaging techniques may lead to over-treatment

...dy suggests. The study included 198 patients with suspected pulmonary embolism. About half of the patients (98...T is now more widely used to examine patients with suspected pulmonary embolism. It allows radiologists to see more of the arteries throughout the lungs, and to ...

Whole-body MRI Takes Less Than 20 Min To Scan A Patient's Entire Body For Cancer Spread To Bone

...or evaluating the entire skeleton in patients with suspected bone metastasis (cancer that has spread to the bone from other parts of the body) in a single imaging scan-and it only takes between 15 and 18 minutes, say two different European studies. For one study, researchers from the Clinica Girona in Catalon...

Structure-building cell signals also may influence learning and memory

...orked on this project for more than two years, had suspected that ephrins played some important part in nerve cell synapse function. Previous studies had shown that animals injected with addictive drugs had activated EphB receptors, and that there is a connection between synaptojanin-1 and bipolar disorders an...

Scripps scientists find potential for catastrophic shifts in Pacific ecosystems

...cific, such as sea surface temperature (which were suspected to show regimes), are not nonlinear. Rather, these...the sum of many variables. This finding means that suspected regime-like fluctuations in the North Pacific physical system are for all practical purposes wiggles...

Master gene controls healing of skin in fruit flies and mammals

...s in the cuticle of certain fruit fly mutants. She suspected that the lesions were scar tissue resulting from the failure of the body surface barrier to develop properly. Confirming her suspicions, the mutant embryos turned out to be much more permeable to a dye than normal embryos. The group also showed that...

Tendency to hair loss inherited from the mother

...f obscure lotions and tinctures. It has long been suspected that hereditary factors are important in causing h...mes. In an area where the largest contribution was suspected lay the gene for the androgen receptor. "One variant of this gene was found among men who suffered f...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

Researchers have long suspected that fertilizer runoff from big farms can trigger sudden explosions of marine algae capable of disrupting ocean ecosystems and even producing "dead zones" in the sea. Now a new study by Stanford University scientists presents the first direct evidenc...

Maine Researchers Find Exceptions to Old Rules of Genetic Inheritance

...of males are sterile. Until now, most geneticists suspected that both transmission ratio distortion and sterility were due to the same mutations in a small number of genes residing in the t haplotype. The hypothesis was logical since the phenomena of transmission ratio distortion and sterility always mapped t...

New tumor-suppressor gene discovered

...ecies, which developed tumors on their bodies. Lai suspected that these flies had a naturally occurring genetic defect that caused them to develop the tumors. He used genetic-mapping techniques to study the mutant fly's chromosomes and identified a short segment of DNA on which a mutant gene was most likely to...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

...ne in the middle of the brain in subjects with the suspected schizophrenia-related version of the gene. Yet, the opposite relationship held for subjects with the other of two common versions of the gene. "A tiny variation in the gene that makes the enzyme that breaks down dopamine causes a complete flipflop ?...

Reservoirs may accelerate the spread of invasive aquatic species, researchers say

...dapt to fresh water. Several invasive species are suspected to have benefited from the use of reservoirs as avenues, including Daphnia lumholtzi, a water flea from the Old World tropics, and the copepod Eurytemora affinis. Some evidence indicates that the spread of zebra mussels, an economically important inv...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

... should focus on: * Rapid diagnosis - persons suspected of having dengue fever must see a doctor at once. Dengue haemorrhagic fever is a deadly disease and early recognition and treatment can save lives. Unless proper treatment is given promptly, the patient may go into shock and die. * Severe abdomin...

Gene sequencing explains bioremediation 'bug'

...es out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a specific, single set ofinstructions -- the key to recognizing a million immune-stimulatingproteins. But until now, no jumping gene was known to behave ...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

...es out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a specific, single set ofinstructions -- the key to recognizing a million immune-stimulatingproteins. But until now, no jumping gene was known to behave ...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

...es out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a specific, single set ofinstructions -- the key to recognizing a million immune-stimulatingproteins. But until now, no jumping gene was known to behave ...

Jumping gene helps explain immune system's abilities

...es out of the genetic material, and scientistshave suspected that this ability might have been borrowed by cellsneeding to build many different proteins from a specific, single set ofinstructions -- the key to recognizing a million immune-stimulatingproteins. But until now, no jumping gene was known to behave ...

Researchers discover molecule that causes secondary stroke

...eater risk." Several spinal fluid components were suspected of causing the vasospasm, Dr. Clark explains. They included hemoglobin, bilirubin and peroxidized lipids, and a group of bilirubin oxidation products that the researchers called BOXes. Building on Dr. Clark's earlier studies in rats, the team measur...

Placenta Is A Rich Source Of Blood Stem Cells

...in the region of the developing aorta. No role was suspected for the placenta, which has been seen as simply a place for nutrient exchange and waste removal between mother and fetus. But rather than merely providing nutrients, Orkin says, the placenta may also provide an ''infusion'' of blood stem cells to the...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...astatin's effect is relatively weak, but Dr. Huang suspected the molecule might be manipulated into something more potent. In collaboration with the laboratory of Dr. Samuel Danishefsky at the Memorial Sloan-Kettering Cancer Center, the team went to work creating what's called a "synthetic analogue." "Startin...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...lathrin regulates endocytosis in a manner we never suspected before. It's not a linear relationship, where simply doubling the amount of clathrin doubles the speed at which vesicles are shuttled back and forth," Dr. Ryan explained. "Instead, it's what biochemists call a highly 'cooperative' relationship. That ...

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