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Tag: "cousin" at biology news

Anti-bacterial additive widespread in U.S. waterways

...lth risks of triclocarban."Along with its chemical cousin triclosan, the antimicrobial compoundtriclocarban should be added to the list of polychlorinated organiccompounds that deserve our attention due to unfavorable environmentalcharacteristics, which include long term persistence and potentialbioaccumula...

Viral protein influences key cell-signaling pathway

...to children through breast milk. HTLV-1, like its cousin HIV, inserts its genetic information permanently into the DNA of a T lymphocyte and remains there for the life of the cell. HTLV-1 infection is also lifelong. A hallmark of HTLV-1 infection is the proliferation of T lymphocytes. This sets HTLV-1 apa...

Different microarray systems more alike than previously thought

... area were given identical samples of RNA -- DNA's cousin -- to analyze using a microarray platform of their choice. Five laboratories used commercially available Affymetrix microarrays, and five labs used either of two more flexible systems. The Hopkins researchers noted that in the scientific literature ...

While on trail of dioxin, scientists pinpoint cancer target of green tea

...and green teas, epigallocatechingallate or EGCG, a cousin of flavonoids found in broccoli, cabbage, grapes and red wine that are known to help prevent cancer. The team had been working on other chemicals to try to stop AH activity. "We initially hypothesized that EGCG would work in the same way as other AH...

UNC plant researchers discover proteins interact to form hair-trigger protection against invaders

Experimenting with Arabidopsis, a fast-growing cousin of the humble mustard plant, scientists at the University of North Carolina at Chapel Hill got a big surprise while investigating how plants respond to attacks from disease organisms such as bacteria and viruses. "Contrary to what we thought we'd fi...

FDA approves more generic AIDS drugs

Experimenting with Arabidopsis, a fast-growing cousin of the humble mustard plant, scientists at the University of North Carolina at Chapel Hill got a big surprise while investigating how plants respond to attacks from disease organisms such as bacteria and viruses. "Contrary to what we thought we'd fi...

New Scripps Oceanography project to study sediments and ecosystem restoration in Venice lagoon

...s lagoon Deheyn will use luminous brittle stars, a cousin species of starfish, to determine whether contaminants in the Venice Lagoon are bioavailable (the amount of contaminants locally present and shown to be accumulated by the organism) and could potentially induce stress on the local ecosystem. "This w...

MicroRNA tweaks protein that controls early heart development

... small molecule of RNA called microRNA ?a chemical cousin of DNA ?helps fine tune the production of a key protein involved in the early development of heart muscle. The findings, available in the online edition of the journal Nature, may aid scientists in their understanding of how a progenitor cell, or st...

Corn grain mould used as pesticide

...lopment." 'Good' mould displaces its highly toxic cousin The remedy may lie in the idea of US researchers ...sturdy that it can assert itself against its toxic cousin in the wild," Professor Sikora says. Promising strains among 3,000 isolates The Federal Ministry o...

Tropical dry forests receive international recognition

...cal dry forest is in as much danger as its popular cousin yet its grave situation continues to be ignored. Dr. Arturo Sanchez-Azofeifa is hoping to change that. Sanchez-Azofeifa is the director of the newly formed TROPI-DRY, a research network on tropical dry forests housed in the Faculty of Science. The...

Researchers Find Drug May Give Some Cardiac Protection 24 Hours After Heart Attack

... the ischemic heart. Darbepoietin is a long-acting cousin of erythropoietin (EPO), which has been shown to offer some protection to the heart from injury from ischemia, or a lack of oxygen. In previous studies, Dr. Koch had given EPO at the time of simulated heart attack in an another animal model, and foun...

NHGRI announces new sequencing targets

...le (Cryptomys species), pika (Ochotona species), a cousin of the rabbit, kangaroo rat (Dipodomys species) an...arsier species), an early primate and evolutionary cousin to monkeys, apes, and humans. NHGRI will base the choice of the eight mammals to be sequenced on the...

FSU biologist says new dinosaur is oldest cousin of Tyrannosaurus rex

...ranch of the family tree –?95 million years before cousin T. rex ruled the roost. Researchers say the identification of the oldest basal (primitive) tyrannosauroid yet will shed light on the early evolution and geographical distribution of its ancestors –?small therapod dinosaurs known as coelurosaurs that...

Genetically engineered mosquitoes show resistance to dengue fever virus

...licates and its single strand of RNA -- a chemical cousin of DNA -- briefly becomes double–stranded. At this point, the virus is vulnerable because of a naturally occurring protein called dicer-2. This protein initially has no effect on a single strand of RNA, but acts like scissors on the double strand, ch...

Ritalin packs punch by elevating norepinephrine, suppressing nerve signal transmissions

...se, little is known about how the drug, a chemical cousin of amphetamines, produces its therapeutic effects. Researchers want to unlock the mystery of why the drug has the paradoxical effect of decreasing hyperactive behavior and increasing the ability to focus, even though it is a stimulant, said Barry Wat...

Rice scientists unveil 'nanoegg'

...eir family ultrasmall, light-focusing particles. A cousin of the versatile nanoshell, nanoeggs are asymmetric specks of matter whose striking optical properties can be harnessed for molecular imaging, medical diagnostics, chemical sensing and more. Nanoeggs are described in the July 18 issue of the Procee...

NHGRI announces latest sequencing targets

...fected with simian immunodeficiency virus, a close cousin to the human immunodeficiency virus (HIV), the rhesus is widely recognized as the best animal model for research on Acquired Immune Deficiency Syndrome, or AIDS. It also serves as a valuable model for studying other human infectious diseases and for ...

Pitt phage hunter takes on tuberculosis

... tuberculosis, they believe, may lie in a harmless cousin of TB called Mycobacterium smegmatis. In the cover story of the December 2005 issue of Cell, Hatfull and Jacobs described how M. smegmatis forms a drug-resistant coating called a biofilm. The researchers made this discovery by infecting M. smegma...

Drug dials down the energy within cells, UM researchers find

... called benzodiazepine-423 (Bz-423), is a chemical cousin of anti-anxiety medications such as Valium and Xanax. In previous work, Glick's group showed that Bz-423 reduces effects of arthritis and the autoimmune disease lupus in mice and may be useful in treating psoriasis. Unlike conventional drugs for thes...

A giant among minnows: Giant danio can keep growing

...Physiology, finds that the giant danio, unlike its cousin the zebrafish, appears to have the ability to recruit new muscle throughout its life. Humans have the same ability before birth, but mostly lose it after birth. Because the zebrafish and giant danio are closely related, and the zebrafish’s genome ...

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