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Tag: "revealed" at biology news

Antibiotic treats lymphoma of the eye

...of disease-free survival. "Our prospective trial revealed that doxycycline is a fast, safe, and active treatment for OAL, both at initial diagnosis and at relapse," the authors write. In an accompanying editorial, Emanuel Zucca, M.D., and Francesco Bertoni, M.D., of the Oncology Institute of Southern Swit...

Tearing down the fungal cell wall

...equencing Center in St. Louis. Electron microscopy revealed some of the dramatic structural changes in the cell wall arising from disruption of the gene. Dr. Nancy Keller, Professor in the Department of Plant Pathology at the University of Wisconsin, Madison and international expert in fungal secondary met...

Ongoing collapse of coral reef shark populations

Investigators have revealed that coral reef shark populations are in the midst of rapid decline, and that “no-take zones”—reefs where fishing is prohibited—do protect sharks, but only when compliance with no-take regulations is high. The findings, reported by William Robbins an...

New study finds chocolate chip cookies lower cholesterol

...n adult population has high cholesterol. The study revealed eating two Right Direction Cookies daily showed a ...o-day variability) and collected. Final results revealed a ten percent decrease of LDL cholesterol levels in the plasma of the participants of the Right Dire...

Global changes alter the timing of plant growth, scientists say

...e plants." Satellite images in recent years have revealed that some regions of the globe are "greening" earlier in the spring--another signal that the Earth is responding to overall warming. The results of this study also showed that plant growth--as evidenced by peak "greenness"--occurred earlier in the gr...

Common ancestry of bacterium and plants could be key to an effective new treatment for chlamydia

...shing a paper in that area." Their experiments revealed that in addition to sharing genome sequences, Chlamydia and plants share similar functions as well. Furthermore, they found that the pathway used by plants to produce lysine is probably used by Chlamydia to synthesize a chemical found in bacterial ce...

Life in the extreme

...argin hydrocarbon seeps in the Gulf of Mexico have revealed a habitat rich in biological activity and without a need for symbionts to extract nutrients. MacDonald found that the productivity of deep-water seeps is overwhelmingly based on chemosynthesis (deriving energy from chemical compounds instead of l...

A buffet for early human relatives

... C4 plants. Analyses of the Paranthropus teeth revealed that the early human relatives had diets that varied in the proportion of C3 and C4 plants both seasonally and from year to year. The year-to-year variation in Paranthropus' diet "might reflect yearly differences in rainfall-related food availability...

Origin of inherited pain disorder pinpointed

...t showed inheritance of the disease. That analysis revealed that mutations that compromise the gene for a comp... affected families and two sporadic cases, indeed, revealed that mutations in SCN9A are responsible for the disease in at least two-thirds of PEPD cases. Anal...

Cocaine high caused by interference in neuronal receiving stations

...f the receptor, called NR2B. Further experiments revealed that when rats were given cocaine, a specific subunit of dopamine receptors, called D2R, tended to attach to the NR2B subunit and was responsible for preventing the normal activation of the glutamate receptor. Such activation normally involves additi...

RNA map provides first comprehensive understanding of alternative splicing

...rystallographic studies. Unexpectedly, this search revealed four discrete peaks where the binding clusters locate. Furthermore, the location of the peaks correlated with Nova's action on regulating whether the alternative exon is spliced in or out. The researchers tested whether this RNA map was valid by ...

T-beta-RIII joins the fight against breast cancer

...gineered to express this protein. Further analysis revealed that the mechanism behind these protective effects of T-beta-RIII was likely to be T-beta-RIII cleavage at the cell membrane, which releases soluble T-beta-RIII that blocks TGF-beta signaling. As low levels of T-beta-RIII were found to be associated ...

Archerfish tune their shots to universal properties of prey adhesion

... of that size could sustain. The new work also revealed that the archerfish's hunting technique is metabolically costly and that the fish tune the force of their water shots by adjusting the mass of water in a shot, rather than altering the initial release pressure and speed of the shot. This turns out to...

A new approach to growing heart muscle

...hait examined the tissue using special stains that revealed the presence and concentration of the fibrin gel, and of collagen generated by the cells as they organized into tissue. Over the course of several days, the fibrin broke down as intended, after fulfilling its role as a temporary support for the ce...

One signal elicits thousands of answers

... which might not be necessary too soon. "Our study revealed more phosphorylation sites than all previous studies combined," says Mann. ...

New research shows big improvement in survival after stroke

... City Hospital and The University of Auckland, has revealed a 40% decline in the number of deaths after stroke in the total population of Auckland, New Zealand over the past 25 years. The study attributes the improved survival rate to health care factors associated with an increase in hospital admission and ...

'Trojan Horse' agent halts bone metastasis in mice

...ically targets bone metastasis." The study also revealed critical information about the role of vascular endothelial growth factor (VEGF) in the development of tumors in bone, says Rosenblum. VEGF is a signaling protein involved in the creation of new blood vessels, but in this study the researchers found ...

Pattern of human Ebola outbreaks linked to wildlife and climate

...posed to the Ebola virus. Life history interviews revealed that some of the antibody-positive people had never visited a region where known Ebola outbreaks occurred in humans. Therefore people have been exposed to the Ebola virus where it has not been recognized. Based on their findings, the researchers ...

Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals

...aring it to the human and chimpanzee genomes. This revealed multiple locations where the Neanderthal sequence matched more closely to that of chimpanzee and not human. Using the comparison of the Neanderthal to the human and chimp genomes enabled the investigators to estimate the human-Neanderthal divergence ...

U of S Vaccine and Infectious Disease Organization team discovers key step in flu virus replication

...for interventions against influenza. The study revealed novel characteristics of a protein, called NS1, that activates a key pathway in the virus's reproduction. This information will help the researchers learn how to create harmless influenza viruses that can be used as live vaccines. The pathway can...

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