like 2 2

Tag: "like" at biology news

Plants respond similarly to signals from friends, enemies

...atodes feed. The scientists also discovered that, like rhizobia and contrary to popular belief, the root-...allow beneficial interactions with other organisms like rhizobia is being exploited by nematodes," says Dr. David Bird, associate professor of plant patholo...

Scientists Replicate Hepatitis C Virus in Laboratory

...uct contained within the human liver cells behaved like a true HCV infection by producing fully formed copies of the virus and releasing them from the host cell into the culture medium. Further testing is needed before the researchers can determine if the viral particles produced in this system are in fac...

Ecological destruction fuels emerging diseases

...things are coming from." In fact, while parasites like malaria are well known, we may have identified only a fraction of the total number of the world's parasites, and the prospect of cataloguing them poses a daunting technical challenge. Since the physical characteristics of many parasites are very simi...

A much-needed shot in the arm for HIV vaccine development

...July. Thecoordinating committee of the plan reads like a "who's who" of globalAIDS experts, including Anthony S. Fauci, Director of the NationalInstitute of Allergy and Infectious Diseases at the National Institutesof Health; Peter Piot, Executive Director of UNAIDS; and PascoalMocumbi, former Prime Mini...

Inexpensive, mass-produced genes core of synthetic biology advances at UH

... physical sciences research. “Synthetic genes are like a box ofLego building blocks,?Gao said. “Their organization is very complex,even in simple organisms. By making programmed synthesis of geneseconomical, we can provide more efficient tools to aid the efforts ofresearchers to understand the molecular ...

New Technique for Tracking Gene Regulators

...as well as what mightgo awry in certain conditions like cancer. TheBrookhaven scientists, together with collaborators from Oregon Health& Science University, Emory School of Medicine, and Stony BrookUniversity, have published the first results using their technique inthe December 29, 2004 issue of Ce...

“Nano-scissors?laser shows precise surgical capability

...stin, led the development of thetechnique. It acts like a pair of tiny “nano-scissors,?able to cut,for example, nano-sized units like nerve axons, the parts of nervecells that carry nerve impulses away from the cells to muscles or too...

U-M scientist to talk about tissue engineering at AAAS

... human cells to do tricks in a laboratory---things like getting soft cells from the mouth's lining to form... then reintroducing the cells into a damaged area, like a jaw bone damaged too badly to simply heal on its own. A tiny scaffold helps direct the engineered ...

The transparent organism: EMBLEM and Carl Zeiss give labs a unique look at life

...lowing scientists to track developmental processes like the formation of eyes and the brain in embryonic fish or other model organisms. The presentation of SPIM at scientific conferences has generated a flood of requests for the instrument. "We were extremely pleased to have found Carl Zeiss as an excel...

Learning to fight an adversary that won't stay down

... The ongoing appearance of new pathogen varieties like multi-resistant E. coli and Staphylococcus aureus (MRSA), the bacterium that causes methicillin-resistant tuberculosis, provide good examples of the challenges we face, says Dr. Davies. Ironically, he says, advances in molecular biology techniques h...

Novel Enzyme Shows Potential As An Anti-HIV Target

...acetylation, only one, SIRT1, is a nuclear enzyme, like Tat, suggesting that SIRT1 might work similarly in living cells. Ott and colleagues went on to show that transcription via Tat occurs in the presence of SIRT1, but not when SIRT1’s catalytic center is removed. Experiments using cells taken from tran...

Scientists seek answers on what activates deadly anthrax spores

...hen anthrax alarms went off. The group also would like to understand another closely related bacterium, Bacillus cereus, one strain of which can produce anthrax-like symptoms. The research team includes Conn Mallett, Ph.D., Derek Parsonage, Ph.D., graduate students Carleitta Paige, Jamie Wallen, and Tim...

The secret lives of whales

... future,?says Palumbi, “especially for populations like these whales that have figured out how to dodge th...gregations of animals. They feed these communities like feeding pigeons in a park except that in Smith’s case, they tow a dead whale out to the deep sea, pl...

Gene therapy converts dead bone graft to new, living tissue

...s with the procedure soon. "This technology looks like it will have a dramatic effect on success rates for cancer patients who would otherwise be facing choices as drastic as amputation," says Arthur A. Gertzman, executive vice president for research and development at the Musculoskeletal Transplant Foun...

Female sex hormones play a vital role in defense against sexually transmitted diseases

...t if future studies can figure out that women too, like mice, are protected in primary exposure by estradi...us doses were weakened. In the second study, just like in the first study, mice were treated with hormones but, before being exposed to the real herpes vir...

Yale Scientists Find MicroRNA Regulates Ras Cancer Gene

...ot revert a mutated Ras to normal; instead it acts like a brake on an accelerated Ras." Lung cancer currently has a poor prognosis with less than 15 percent of patients surviving five years. The lungs, however, are relatively accessible for inhalation of potential gene therapy agents. "While this is not ...

An HIV Protein Plays a Surprising Role in Gene Activation

...ss of regulating gene expression, and retroviruses like HIV have evolved myriad ways of redirecting that machinery to their own benefit. Humans and other eukaryotes have three types of RNA polymerases, each charged with transcribing different types of genetic elements. RNA polymerase II transcribes prote...

Mouse brain tumors mimic those in human genetic disorder

... team developed a mousemodel in which the animals, like humans with the disease, have oneabnormal copy of the gene for NF1 in every cell in their body, whilespecific support cells in the brain called astrocytes have two abnormalcopies of this same gene.Their latest paper shows that brain tumor formation i...

Spider Venom Could Yield Eco-Friendly Insecticides

...sects have never encountered chemicals that behave like spider toxins, they will most likely lack resistan...within a genus. The toxin-enhanced virus would act like a magic insecticide bullet, targeting only cotton bollworms, for example, and leaving bees and other...

Poplar trees redirect resources in response to simulated attack

...nables us to study the effects of external factors like insect attacks, disease, elevated carbon dioxide, ... (PET) scanners. Their research using radiotracers like those used in human PET scanning is helping to unravel the mysteries of plant biochemistry. http://...

1 2 3 4 5 6 7 8 9 10