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Tag: "isolated" at biology news

Chimp genome reveals a retroviral invasion

...on: even though Asian and African apes were mostly isolated during the Miocene era (spanning 24 to 5 million years ago), humans and African apes did overlap. It could be that African apes evolved a susceptibility to infection, for example, or that humans and Asian apes evolved resistance. A better understandi...

Scientists identify genes responsible for 'black rot' disease in vegetables

...nced the complete genome of an Xcc strain that was isolated from an infected cauliflower plant in England during the 1950's. They then compared this sequence to a previously published sequence from a cabbage-derived Xcc strain. Although the gene content of the two strains was very similar, the authors identif...

Second messenger NAADP shows fast, dose-related impact on satiety cycle

... "We found that application of cholecystokinin to isolated populations of pancreatic acinar cells caused NAAPD level to increase as much as 6-fold in only 5 to 10 seconds," Yamasaki said. The cholecystokinin-A receptor, expressed predominantly in pancreatic acinar cells, has two binding sites, one of high an...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...ice. "The Canada Basin is one of the world's most isolated ocean areas," says Dr. Rolf Gradinger, head of the Arctic CoML, based at the University of Alaska, Fairbanks (UAF), and chief scientist on the voyage. "Several creatures brought aboard the Healy are unfamiliar to expedition experts and may well prove...

Community MRSA is re-emergence of 1950s pandemic, study suggests

...rchers who have been studying the bacteria. First isolated in Australia and Canada in 1953, type 80/81 penici...rchers have sequenced key genes from 80/81 samples isolated between 1955 and 1969 in Australia, England and the USA, and compared them with the same regions in ...

Discovery could be key to bioterrorism defense

...ould be engineered for use as bioweapons. The team isolated the functional receptor for the Nipah and Hendra v... to a live virus at AAHL." Hendra virus was first isolated in 1994 when an outbreak of respiratory and neurologic disease emerged among horses and humans in He...

Research on antibiotics receives historical recognition

...a. Streptomycin was the third antimicrobial agent isolated under Waksman's direction at Martin Hall at Cook C...ue and other diseases. Among the other antibiotics isolated in Waksman's laboratory was neomycin, still used as a topical antibacterial agent. William F. Carro...

Bacterial genome sheds light on synthesizing cancer-fighting compounds

...rochloron in the laboratory once the bacterium was isolated from the sea squirt. Because samples of Prochloron were easily contaminated with remnants of life inside its animal home, scientists couldn't tell if the bacterium or the sea squirt produced the sought-after patellamides, until now. By searching for...

Researchers grow stem cells from human skin

...st University School of Medicine have successfully isolated stem cells from human skin, expanded them in the laboratory and coaxed them into becoming fat, muscle and bone cells. The study, one of the first studies to show the ability of a single adult stem cell to become multiple tissue types, is reported tod...

Bacteria feed on smelly breath (and feet)

Researchers have isolated bacteria which can grow on and 'mop up' smelly com...ogy. The odour-eating methylotrophic bacteria were isolated from the tongue, tooth plaques (supra-gingival plaques) and gum edge (sub-gingival plaques) of volun...

Motor transport in bio-nano systems

...biological cells. Both motors and filaments can be isolated from the cells and used to construct biomimetic tr... amount of fuel. Both filaments and motors can be isolated from biological cells and used to construct biomimetic transport systems. A relatively simple exampl...

Achilles heel of the herpes virus possibly found

... library to find genes essential to HSV infection, isolated the B5-coding sequence, and figured out how to get...the cell receptor. The papers detail how the team isolated and characterized the gene that encodes B5, called hfl-B5, and used the DNA sequence to find out mor...

Deep sea algae connect ancient climate, carbon dioxide and vegetation

...ed by ancient sea surface algae that were recently isolated in deep sea drill cores. The data indicates that between 45 - 34 million years ago the atmospheric carbon dioxide level was up to five times greater than today, with a sharp decrease and then stabilization to near modern day levels between 34 - 25 m...

Invasive parasite destroying fish species

...ed by ancient sea surface algae that were recently isolated in deep sea drill cores. The data indicates that between 45 - 34 million years ago the atmospheric carbon dioxide level was up to five times greater than today, with a sharp decrease and then stabilization to near modern day levels between 34 - 25 m...

Stem cells grown in lab mirror normal developmental steps

...ed by ancient sea surface algae that were recently isolated in deep sea drill cores. The data indicates that between 45 - 34 million years ago the atmospheric carbon dioxide level was up to five times greater than today, with a sharp decrease and then stabilization to near modern day levels between 34 - 25 m...

Purdue scientists may have found key to halting spinal cord damage

Purdue University researchers may have isolated the substance most responsible for the tissue damage that follows initial spinal cord injury, a discovery that could also improve treatments for a host of other neurodegenerative conditions. A research team led by Riyi Shi (REE-yee SHEE) has found t...

The genetic origins of corn on the cob

... at Cold Spring Harbor Laboratory in New York have isolated the ramosa1 gene and shown how it controls the arrangement and length of flower-bearing branches in corn, related cereal crops, and ornamental grasses. The study indicates that during the domestication of corn from its wild ancestor (teosinte), early...

$6.5 Million Grant for Microarray Center at Yale School of Medicine

... at Cold Spring Harbor Laboratory in New York have isolated the ramosa1 gene and shown how it controls the arrangement and length of flower-bearing branches in corn, related cereal crops, and ornamental grasses. The study indicates that during the domestication of corn from its wild ancestor (teosinte), early...

A virus-like hitchhiker may trigger bacterial meningitis

...earchers studied strains of bacteria that had been isolated from humans and found that the strains that carried this virus-like stowaway were more likely to have caused disease. How this bacteriophage causes N. meningitidis to become more dangerous is unknown. It may help the bacteria get into the bloodstream...

Attacks of King George III's madness linked to key metabolism molecule

... of the liver. The gene that makes PGC-1 alpha was isolated in 1998 in the laboratory of Bruce Spiegelman, PhD, who is senior author of the new report. Postdoctoral fellow Christopher Handschin, PhD, is lead author. "We've explained how porphyria symptoms can occur in episodic attacks triggered by fasting, ...

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