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Tag: "tube" at biology news

Plant protection from cold decoded

...the paper. The interaction worked both in the test tube and in the live plant. "The better we understand this molecular mechanism, the better we can control the process of increasing the plant's freezing tolerance without causing negative impacts," Zhu said. "This process should apply to all plants and c...

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

...scopy, a procedure where a long, flexible, lighted tube is inserted into the rectum and guided slowly into the colon. The tube or scope transmits an image of the inside of the colon onto a video screen so its lining can be exam...

A new tool against brain disease

... flipping a molecular switch on the cells. In test tube studies, however, the scientists showed that they ...general response to viral infection. In test tube studies, the researchers showed that higher PD-1 expression was associated with more severe function...

How HIV 'exhausts' killer T cells

... flipping a molecular switch on the cells. In test tube studies, however, the scientists showed that they ...general response to viral infection. In test tube studies, the researchers showed that higher PD-1 expression was associated with more severe function...

New device could cut chemotherapy deaths

... be formulated as a bead, a fibre or mesh, or as a tube put into the body which leads outside the body and through which drugs can be fed. For the pre-clinical studies, funded by the Department of Health, Dr Perera will be working closely with Dr Vasanta Subramanian, a lecturer in the University's Depart...

Proteins spur diabetic mice models to grow blood vessels, nerves

...cular disease, and other illnesses out of the test tube and into animals by demonstrating it restores nerve and blood vessel growth in mice. The research has particularly important implications for the estimated 21 million Americans with diabetes, a disease that damages both nerves and blood vessels. Th...

Study fishes out new role for prostaglandins

...omes the skin and nervous system. "The body is a tube in a tube in a shell," Solnica-Krezel explained. "Before gastrulation, all of these prospective tubes are at t...

Scientists force viruses to evolve as better delivery vehicles for gene therapy

...olymerase chain reaction (PCR) coupled with a test tube recombination technique. After reassembling the mutant viruses inside their capsids, they introduced them to blood serum pooled from rabbits immunized against AAV, and thus containing many types of antibodies to AAV. Only the mutant viruses good at e...

Creation of antibiotic in test tube holds promise for better antibiotics

...for more than 40 years to preserve food, in a test tube for the first time using nature's toolbox. They al...The researchers synthesized nisin simply in a test tube by using a single cyclase enzyme to re-create the process that normally occurs in a strain of the ba...

New insights into neural tube defects

Environmental and genetic factors lead to neural tube defects in 1 in every 1,000 births and cause 1 in ... defects is the failure of cells within the neural tube to migrate to the middle of the developing neural tube. A study in this week's issue of Nature i...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...pread of both vaccinia and variola viruses in test tube experiments. Moreover, the hybrid antibodies prove...hybrid test antibodies, 8AH7AL and 8AH8AL. In test tube experiments, both antibody types prevented the spread of vaccinia virus. Further, the 8AH8AL antibod...

'Accelerated evolution' converts RNA enzyme to DNA enzyme in vitro

...res allow us to carry out many generations of test tube evolution. The resulting molecules have interesting catalytic properties, they teach us something new about evolution, and they have potential application as therapeutic and diagnostic agents." ...

Liver cancer linked to cellular repair pathway

...cell growth, promoting cancer development. In test tube and cell culture experiments, blocking the Hedgehog pathway reduced growth of cancer cells by over 90 percent. Liver cancer, or hepatocellular carcinoma, often develops in people with cirrhotic livers damaged by chronic infections, such as hepatitis...

New male contraceptive clears hurdle

... In the RISUG study, doctors inject a gel into the tube that sperm travel through after they are produced (known as the vas deferens). The gel then disables the sperm as they swim by. In study animals, male fertility returns if the RISUG is flushed out with another injection that dissolves the gel. Elain...

A biosensor layered like lasagna

...from the reaction ping the carbon nanotube; if the tube is connected to an electrode, the tube will carry a signal that corresponds precisely with the amount of glucose detected. The first polyme...

Rare Tibetan antelope listed as endangered

...elies on 500 tiny cables and sensors packed into a tube 12 millimeters in diameter ? the size required to fit into surgical instruments, called trocars, that surgeons use to allow easy exchange of laparoscopic tools. By comparison, most two-dimensional ultrasound probes use just 64 cables. "It's a feat o...

3D ultrasound device poised to advance minimally invasive surgery

...elies on 500 tiny cables and sensors packed into a tube 12 millimeters in diameter ? the size required to fit into surgical instruments, called trocars, that surgeons use to allow easy exchange of laparoscopic tools. By comparison, most two-dimensional ultrasound probes use just 64 cables. "It's a feat o...

Birth defects: 8 million annually worldwide

...ongenital heart defects (1,040,865 births); neural tube defects (323,904 births); the hemoglobin disorders...t are folic acid supplementation to prevent neural tube defects; iodination of salt to prevent severe congenital hypothyroidism; and rubella immunization to...

Jefferson researchers find nanoparticle shows promise in reducing radiation side effects

...penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection w...gnant cells. This effect was seen in both the test tube and animal experiments. This type of gene therapy "may be a potent strategy to treat many malignant...

Gene therapy potential for treatment of pancreatic cancer

...penetrate the cells, acting as a vector. The test tube experiments showed that 72 hours after infection w...gnant cells. This effect was seen in both the test tube and animal experiments. This type of gene therapy "may be a potent strategy to treat many malignant...

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