sugar 2 4

Tag: "sugar" at biology news

Honey helps problem wounds

...e antiseptic, are constantly being formed from the sugar in the honey. The advantage over the hydrogen peroxide from the chemist's is that small concentrations are sufficient to kill the germs, as it is constantly being produced. As a rule much larger quantities of hydrogen peroxide would have to be used, ...

Tiny shock absorbers help bacteria stick around inside the body

...imH at their tip that binds in an unusual way to a sugar molecule on a surface. The FimH-sugar combination makes a "catch bond" that acts like a finger trap, and actually gets stronger as drag force is exerted on a bacterium. Rather than being swept away by fluids moving through the human body, the bacte...

Survival of the selfless - scientists find cheats don't always prosper

...whether they convert energy from resources such as sugar rapidly or if they convert it efficiently. In on...rs', which produce energy efficiently by taking in sugar slowly and fully converting into energy all that they ingest. This method maximises resources availa...

Super-sized cassava plants may help fight hunger in Africa

... his laboratory. Sayre said that cassava produces sugar more efficiently than any other cultivated plant. ... find a way to help the plant redirect that excess sugar and use it to make starch," Sayre said. The researchers used a variety of cassava native to Colombi...

Johns hopkins researchers find link between cell's energy use and genome health

.... For example, like all animal cells, yeast use sugar as an energy source. To harvest the energy contained in sugar, the yeast must convert the sugar into other molecules in a series of biochemical steps helped along the way by enzymes that make each...

Researchers develop flood-tolerant California rice

...erged, the plants lack the gases needed to produce sugar for cellular energy, resulting in death if submergence persists beyond four days. Bailey-Serres notes that access today to information about the rice genome ?all the genetic material in the chromosomes of rice ?has greatly accelerated progress in ...

BGSU biologist trying to crack microscopic code

...tes. The outer membrane is stabilized by a grid of sugar polymers, and penicillin wrecks the grid, making the cells susceptible to a body's natural defenses. Disrupting energy flow--knocking out the TonB and Tol systems--would provide another powerful weapon against disease-causing bacteria, he says, but...

Research highlights how bacteria produce energy

...rium Bacillus subtilis to directly ferment glucose sugar to ethanol with a high (86%) yield. This is the first step in a quest to develop bacteria that can breakdown and ferment cellulose biomass directly to ethanol. "Currently ethanol is produced primarily from sugarcane or cornstarch, but much more bio...

Spinal cord bridge bypasses injury to restore mobility

...ight dismantle the proteoglycans by clipping their sugar branches, thereby preventing the scar wall from building. In a National Institutes of Health-supported animal study, 12 rats had spinal injuries at the cervical level 3 (C3) that resulted in impaired motor functions to their right side limbs. The a...

Successful transplantation from pig embryos to mice

...producing insulin and maintaining the mice's blood sugar at normal levels. "The results of this study," says Reisner, "warrant further, pre-clinical research on primate models." ...

Genetic snooze button governs timing of spring flowers

...on." When that is the case, a cold snap can fool sugar beets, for example, into flowering, a process that can ruin the crop by redirecting nutrients from the valuable root to the production of seeds and flowers. And although Amasino and his group have demystified some of the molecular underpinning of t...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...s fluorodeoxyglucose or FDG, which includes both a sugar and a radionuclide) is injected into a patient. Cancer cells metabolize sugar at higher rates than normal cells, and the radiopharmaceutical is drawn in higher concentrations to ...

Diabetes hits 275 Australians each day as pandemic spreads

...y to develop diabetes than those with normal blood sugar levels Obese people were 4 times more likely to develop diabetes than those with normal weight People with high blood pressure were 3 times more likely to develop diabetes than those who had normal blood pressure, and People who are physically in...

A sweet solution for Alzheimer's disease?

Certain variants of a simple sugar ameliorate Alzheimer's-like disease in mice, accor...isease. The new studies show that some types of a sugar called cyclohexanehexol--also known as inositol--prevented the accumulation of amyloid â deposits, a...

A single sugar found responsible for an antibody's ability to treat inflammation

...of the IgG antibodies in the IVIG solution carry a sugar called sialic acid that is required for its protective ability. IgG antibodies bind to and activate specific immune cells, with different forms or "subclasses" binding to specific receptors (called Fc receptors) on the immune cell's surface. Antib...

Researchers attack tumor cells by exploiting dependency on sugar metabolism

...0 years that cancer cells commonly display altered sugar metabolism, the molecular significance of this phenomenon is not completely understood. Now, a new study published in the June issue of Cancer Cell reveals a functional connection between carbohydrate-driven energy production and tumor maintenance. I...

Producing bio-ethanol from agricultural waste a step closer

...ol is only made from sugars derived from corncobs, sugar beets, grain and sugarcane, with the help of baker...baker's yeast, allowing it to convert an important sugar type, xylose, into ethanol, thereby making the production of bio-ethanol from supplies of leftover m...

Gardenia fruit compound starting point for diabetes therapy

...ulin deficiency or insulin resistance causes blood sugar concentrations to rise. The team discovered that Gardenia extract contains the chemical "genipin." Previously known for its ability to cross-link proteins, they now find that the chemical also blocks the function of the enzyme called uncoupling prot...

Increased sensitivity to nerve signals keeps diabetes at bay

...eating a meal play a critical role in normal blood sugar control, according to a report in the June 7, 2006...rasympathetic nervous system's modulation of blood sugar is not a transient event--its effects on the pancreas are sustained for a long time after a meal." ...

Researchers discover how bacteria sense their environments

...sense a lot of different things. But assume it's a sugar molecule that a bacterium needs as a nutrient -- e...est that when one receptor detects, for example, a sugar in its environment, communication of some sort triggers an array of linked receptors to rearrange it...

1 2 3 4 5 6 7