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Tag: "grow" at biology news

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

... number as many as 40 million. The rays, which can grow to be more than four feet across, eat large quantities of bivalves, including bay scallops, oysters, soft-shell and hard clams, in the bays and estuaries they frequent during summer and migrate through during fall and spring. In the early 1980s wh...

MIT bioengineer advances survival, promise of adult stem cells

...d be transplanted to an injury site and induced to grow into new, healthy tissue. The research appears in ...sed on the potential for mesenchymal stem cells to grow into new bone in patients with bone cancer or severe bone injuries. Current treatment for such patie...

Research project tackles 'regeneration' gap

...y of us live to be 80. But we can’t do things like grow an arm or finger as we did in the early stages of our development. We want to learn how to turn those systems back on in people." Recently, studies have shown humans possess some of the same genes and communication pathways used by some of nature’...

Something new under the sun

That plants grow better if grown in a greenhouse in the correct climate is nothing new. Dutch researcher Rachel van Ooteghem has designed a control system for an improved solar greenhouse that yields more. In the new greenhouse, good climate control with sustainable ...

Researchers show that veins stiffen as we age

...UD's College of Health Sciences, said. "But as you grow older, we've found that your veins become more lik...d analogy for what is happening in our veins as we grow older." So can we do anything to keep our veins limber as time marches on? "While there have bee...

Microbes compete with animals for food by making it stink

...e group in seawater where microbes were allowed to grow naturally and the other in seawater with the antibiotic chloramphenicol added to suppress microbe growth. In the lab, stone crabs readily ate both freshly thawed menhaden and fish that had soaked in water with antibiotics, but refused to eat the rott...

Single molecule extends fat mice lives by reversing gene pathways associated with disease in obese

...eir motor skills actually show improvement as they grow older. " Reversing Genetic Pathways Triggered by High Calorie Diet The research team also wanted to see if resveratrol could reverse the changes in gene expression patterns triggered by high calorie diets. Using liver tissue of five mice at 18 ...

Low levels of neurotransmitter serotonin may perpetuate child abuse across generations

...fe could reduce the likelihood that the child will grow up to become abusive, Maestripieri said. Maestri...also the case in humans as not all abused children grow up to be abusers." In order to study the possible effects of early abuse on brain development, the...

Dopamine used to prompt nerve tissue to regrow

...rring or nerve degeneration, allowing the nerve to grow in a hostile environment post injury. When ready for clinical use, the polymer would be implanted at the damaged site to promote nerve regeneration. As the nerve tissue reforms, the polymer degrades. Wang's team found that dopamine's structure...

Plant studies reveal how, where seeds store iron

...gs. Seedlings that do not express the VIT1 protein grow poorly when iron is limited. In addition to funding from the National Science Foundation, the study was also supported by the National Institutes of Health. The imaging was carried out at the Department of Energy's National Synchrotron Light Sourc...

Lungs try to repair damaged elastic fibers

...a drug to 'turn on' key genes to allow the lung to grow new alveoli, he said. Alveoli play a role in the exchange of oxygen and carbon dioxide between the lungs and the circulatory system. A 2-year-old could do it Very young children who suffer lung injuries increase elastin expression and produce n...

Why do cold animals make bigger babies?

...g just happen to be produced by large mothers, who grow large because they require more energy to reproduce in the cold. When they tested the theories simultaneously with their new approach, the team concluded that temperature's effect on reproduction is a byproduct of its effect on adult size. "This r...

Invasive ants territorial when neighbors are not kin

...ead of defending territories, then colonies should grow at a much faster rate." In their native Argentina, aggressive interactions between colonies are much more common and colonies are significantly smaller. When Argentine ants were introduced to California 100 years ago, they spread widely because th...

Solution to bacterial mystery promises new drugs

...seases and senior author of the paper. As bacteria grow in size or divide, they must make additional membr...omponents required for disease-causing bacteria to grow and multiply is a key part of developing new strategies for controlling infections." ...

Plant studies reveal how, where seeds store iron

...gs. Seedlings that do not express the VIT1 protein grow poorly when iron is limited. ...

Molecular 'marker' on stem cells aids research, perhaps therapies

...ed by a number of researchers for their ability to grow fat, cartilage and bone on special biomaterial-based scaffolding, with the goal of producing soft tissue for reconstruction or augmentation, or to shore up bones left fragile by age or disease. “With a purer cell population, you should have a more...

Smashing the time it takes to repair our bones

...d broken bones. "This device is about trying to grow bone tissue in the same environment our body grows bones. I have taken bone cells and put them in the physical environment they would experience in the body, and then varied the stimulants to extract a beneficial environment for tissue growth," he sa...

Ocean sampling yields environmental sources of coral symbionts

...re similar to those of the Symbiodinium genus that grow within corals—have been isolated from both sand and the water column; however, neither the locations of these populations nor their ability to establish symbioses is known. For both our understanding of reef ecosystems and their conservation, it is c...

Vanishing beetle horns have surprise function

... these larval horns enabled Onthophagus beetles to grow a thicker carapace," Moczek said. "But it is also ...ferential growth; flamboyantly horned male beetles grow them, hornless females simply can't. But the American Naturalist report shows that even within sexua...

Scientists show drug can counteract muscular dystrophy in mice

...ls with deacetylase inhibitors caused the cells to grow larger and differentiate better, says Dr. Sartorelli, the group leader of the Muscle Gene Expression Group in NIAMS' Laboratory of Muscle Biology. The next advance, published two years later in the journal Developmental Cell , was the discovery that...

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