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Tag: "type" at biology news

Genetically engineered blood protein can be used to split water into oxygen and hydrogen

...ing one small detail of their make-up, such as the type of metal at the heart of a porphyrin molecule, as we did in this study. "It's very exciting to prove that we can use these biological structures as a conduit to harness solar energy to separate water out into hydrogen and oxygen. In the long term,...

Science researchers genetically transform immune cells into tumor fighters

...ancer, focusing specifically on T cells, a special type of immune cell that can recognize and attack "foreign" cells such as those found in tumors. In their earlier experiments, the researchers removed tumor-fighting T cells from melanoma patients and multiplied these cells in the laboratory. After using ...

The effects of smoking on fractures and ligament injuries

...ice to achieve a simple fracture. Researchers used type II collagen expression as a marker of cartilage fo...llular matrix development, shown by lower collagen type I gene expression, one week after injury. This may lead to a delay in restoring biomechanical stabil...

Solution to bacterial mystery promises new drugs

... demonstrated that current textbooks use the wrong type of bacterium as a model to explain a critical biochemical step that most disease-causing bacteria use to make their membranes, according to Charles Rock, Ph.D., a member of the St. Jude Department of Infectious Diseases and senior author of the paper...

Antibiotic treats lymphoma of the eye

...common antibiotic doxycycline effectively treats a type of lymphoma associated with chlamydia infection, according to a study in the October 4 issue of the Journal of the National Cancer Institute. Ocular adnexal lymphoma of the MALT-type (OAL) is a kind of cancer of the eyelids and related tissues. ...

Vaccine-producing 'plant-factories'

...CSIC team refutes one of the dogmas regarding this type of protein. Nevertheless, Pozueta reveals that the...e chloroplast, when they came across an unexpected type of protein for this type of cell organ. They found that these proteins resisted high temperatur...

Molecular 'marker' on stem cells aids research, perhaps therapies

...stem cells also has been found on the surface of a type of adult stem cell, a discovery that may help researchers isolate and purify adult stem cells for use in therapies aimed at bone healing, tendon repair and cartilage regeneration, researchers at UT Southwestern Medical Center report. The molecule, c...

Lost in the labyrinth

...re very likely to die or to begin an inappropriate type of reproduction. Acute leukemias and other forms of cancer cells derive from defects such as this. Understanding the processes by which they form will require pinpointing the forks in the road where things go wrong." ...

Weighty viruses

...archebacteria), viruses are the second most common type of organism. In our oceans they are the most commo...chose to use a cylindrical ion trap (CIT). In this type of trap, the movement of the trapped ions is considerably more complex and not mathematically ascert...

Vanishing beetle horns have surprise function

... appears these pre-adult horns are not a vestigial type of structure, which many of us thought was the case. Instead we have shown these horns actually serve an important function regardless of whether they are resorbed in the pupal stage or maintained into the adult." Because all the Onthophagus beet...

NHGRI aims to make DNA sequencing faster, more cost effective

...an Resequencing" This team has developed a novel type of fluorescent nucleotide that is modified for sequencing by synthesis. Their goal is to improve the chemical subunits, called reversible terminators, for use in a system that will ultimately be used to sequence DNA templates in high-density arrays, ...

Anticipation plays a powerful role in human memory, brain study finds

...One was neutral, but the other indicated that some type of gruesome picture was soon to follow, such as explicit photos of bloody, mutilated bodies.Thirty minutes after the researchers had shown dozens of violent images, they quizzed study participants on how well they remembered the pictures they had jus...

Tiny Tampa Bay fish key to evolution of immune system

... the level of jawed vertebrates that expresses the type of proteins we use in our own complex adaptive imm... and other organisms with jaws and vertebrae. This type relies on an army of antibodies and other immune system cells to customize its response to an array ...

Peering into the shadow world of RNA

...verning important aspects of gene expression. This type of RNA is called non-coding RNA, meaning that although it may be biologically active, it does not carry the instructions for producing any protein in the body. The importance of better understanding these non-coding forms of RNA is underscored by...

Gene therapy inhibits epilepsy in animals

... the dentate gyrus, the researchers focused on one type of cell receptor, type A receptors, for the neurotransmitter gamma-aminobutyric acid (GABA). When GABA(A) receptors are act...

Edible coatings will be the packaging of the future

...onclusion from the study is that, depending on the type of plastifier used, the mechanical properties change with the passage of time. Thus, those films with sorbitol plastifier underwent variation in their mechanical properties, i.e. their flexibility; while those containing glycerol did not alter their ...

New bird discovered on unexplored Columbian mountain

...aught by the team and used in the description as a type specimen was released unharmed, a DNA sample and photographs having been taken. This is the first time that a live specimen has been used for the description of a new bird following the approval by the International Commission of Zoological Nomenclat...

New research identifies gene important for nicotine's effects on the brain

...B function. She and her colleagues showed that one type of nicotine receptor was important for both CREB activity and nicotine reward and that blocking CREB in the nucleus accumbens was sufficient to block nicotine reward. ...

Life in the extreme

... This means that the mussel, depending on which type of symbionts it carries, can derive its energy from either sulphide or methane. In addition, Duperron has also found that in the Idas sp., three of the symbionts belong to bacterial groups previously not reported to include symbiotic bacteria. They s...

Proteins necessary for brain development found to be critical for long-term memory

A type of protein crucial for the growth of brain cells d...BDNF), bind onto the brain cell through a specific type of receptor known as TrkB, much the same way a key fits into a lock. As an experimental strategy to ...

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