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Tag: "carrier" at biology news

Researchers find cause of frontotemporal dementia

...by a defect in chromosome 17. Chromosome 17 is the carrier of the tau protein's hereditary code, and defects in this protein cause tau-positive FTD. However, there is another form of FTD that occurs much more frequently than tau-positive FTD ?namely, ubiquitin-positive FTD (FTDU). Patients with FTDU do not h...

Eminent inventor of DNA fingerprinting gains new recognition

...mple the ability to determine whether someone is a carrier of certain pathogenic genes. Most recently, Jeffreys has concentrated on genetic mutations and environmental factors. He is, for example, studying how irradiation may have caused genetic mutations in families from Chernobyl."Luton-born Sir Alec has f...

Embryonic selection of sex avoids conceiving blind children

...out an embryonic sex selection in a woman who is a carrier of the disease Retinosis Pigmentaria, linked with the X chromosome ?in order to avoid giving birth to a male child. Retinosis Pigmentaria is a hereditary illness of the eyes of a degenerative nature. It causes a serious reduction in visual capacity ...

Pesticides need sunscreen to beat the heat

...er pesticides. We are considering it as a platform carrier material for pesticides and have looked at several pesticides, including this oil-soluble avermectin, and water-soluble validamycin, and a couple of others, all demonstrating the same behaviors," Wen said. ...

Walking molecule now carries packages

...25 Physics Stories for 2005." The new molecule carrier runs on a copper surface. It can pick up and relea...Bartels. "Attachment of one CO2 molecule makes the carrier need twice as much energy for a step, and a carrier with two CO2s requires roughly three times the e...

Researchers create artificial enzyme that mimics the body's internal engine

...eries of proteins known as electron carriers. Each carrier receives electrons from the preceding one, then tr... form of ATP and heat. CcO is the last electron carrier in the transport chain. It receives four electrons from the other carriers and transfers the electro...

Africa's first large-scale HIV vaccine study launches

...assed from person to person. The adenovirus is the carrier or vector which transports copies of three HIV genes called gag, pol and nef. The vaccine is made in the laboratory and does not contain live HIV. The test vaccine therefore cannot cause infection. The hope is that these HIV genes will produce a c...

Hybrid molecule causes cancer cells to self-destruct

...t the sugar partner to serve not just as a passive carrier but as additional ammunition in the fight against cancer." The researchers focused on a sugar called N-acetyl-D-mannosamine, or ManNAc, for short. The team created a hybrid molecule by linking ManNAc with butyrate. The hybrid easily penetrates a c...

Penn researchers show how nanocylinders deliver medicine better than nanospheres

...ver drugs to tumors. By using a cylindrical-shaped carrier they were able sustain delivery of the anticancer drug paclitaxel to an animal model of lung cancer ten times longer than that delivered on spherical-shaped carriers. These findings have implications for drug delivery as well as for better understand...

Cornell lab confirms deadly fish virus spreading to new species

...d Bowser. "The ability of the virus to go beyond a carrier state and cause disease in this important aquaculture species is a major research question we plan to investigate this year."...

Progress toward an antitumor vaccine

...to bind a molecule that is typical for tumors to a carrier protein without irritating the immune system. As t...essful if the vaccine is anchored to an immunizing carrier protein by means of a spacer,” explains Kunz. This would be very easy to accomplish with polysacchar...

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