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Tag: "length" at biology news

Stem cell transplants improve recovery in animal models for stroke, cerebral palsy

...le, lasting up to two months, which was the entire length of this study," Dr. Borlongan said. "Furthermore, animals continued to show improvement over time." In the newborn model of ischemic injury, enhanced recovery was found within two weeks. Even though less than 1 percent of the transplanted cells wer...

Gene thwarts some pathogens, gives access to others, could save crops

...he details of how it regulates root growth and the length and amount of root hair. This may have implications in terms of nutrient absorption or total plant biomass." The answers eventually could lead to increased crop yield and decreased produce loss due to Botrytis and other similar pathogens, he said. ...

All placebos not created alike

...he acupuncture trial extended four more weeks (the length believed needed to see improvement), and the pill trial lasted six more weeks (the length needed to have the real drug in the bloodstream). In the second phase of the study, patients receiv...

Loosen leash on cancer protein 'watchdog,' researchers say

...r cancer predispositions. If we can find the right length for the leash, someday we may be able to find a way to specify it without resorting to genetic modification. Then we might have a way to keep the watchdog on high alert." ...

Scientists re-engineer a well-known antibiotic to counter drug resistance

...oger said. "These infections not only increase the length of hospital stays, but they raise patient mortality rates as well. Our successful synthesis of a novel vancomycin analogue with a molecular structure that restores much of the drug's binding ability could potentially lead to the development of a new ...

The giant protein titin helps build muscles

...n the Z-disk and is so long that it spans half the length of a sarcomere. Its size and position ?putting it into contact with all the majorcomponents of sarcomeres ?suggests that it might help in their assembly. The latest study, which arises from more than a decade of collaborative research by the Wilmann...

How marine reserves are giving coral reefs a helping hand

... to happen. Interestingly, once parrotfish reach a length of around 28 cm, they become too big for even the largest grouper to swallow. This 'escape' from a risk of predation means that most reserves are unlikely to reduce the amount of grazing even afterthe number of predators rises." Peter added, "Diving...

Penguins waddle but they don't fall down, UH researchers say

... mat, it measures the variability in the width and length of their steps. The data will provide insight into the natural mechanics and stability of the penguins' walking patterns. Kurz is collaborating with biologists at Moody Gardens, a public, nonprofit educational destination utilizing nature in the ...

How the octopus forms an elbow

...is a remarkably simple mechanism for adjusting the length of the arm segments according to where the object is grasped along the arm. The arm also forms a proximal joint near where the arm meets the body, and a distal joint near the suckers that have grasped the food. The medial joint typically exhibits the...

Basic research leads to a novel cancer therapy

...h death is related to a tumour. We can improve the length and quality of patients' lives by treating them with very specific drugs, which attack a variety of characteristics of tumour cells. Therapy with multi-targeted substances which block signal transduction in tumour cells is a new breakthrough in the w...

MiRNA fingerprint identified in platelet formation

...of RNA typically no more than 20-25 nucleotides in length ?also regulates protein synthesis by interfering with mRNA's original instructions. They now know that miRNA helps to regulate many key biological processes, including cell growth, death, development and differentiation. Dr. Carlo Croce, director of...

Study finds evolution doesn't always favor bigger animals

...each of the species of Poseidonamicus increased in length by about 29 micrometers. Hunt and Roy said biologists are uncertain what may be triggering this biological response to larger size from cool environments. Nevertheless, the UCSD study is important because it establishes a firm link between climatic...

Clock molecule's sensitivity to lithium sheds light on bipolar disorder

...he time it takes for that to happen determines the length of the cycle–roughly 24 hours–and keeps the clock going," explains Lazar. Penn colleague and coauthor Peter Klein, MD, PhD, Assistant Professor of Medicine, discovered a few years ago that the drug lithium, used to treat biopolar illness, inhibits G...

Growing crops to cope with climate change

... how the plant responds to seasonal changes in the length of the day. This is key to understanding how plant...f the activity of another gene called CO. When the length of the day is long enough CO activates one of the key genes that triggers flowering. Naturally occur...

Lack of a key enzyme dramatically increases resistance to sepsis

...'s known that the presence of caspase-12 as a full length protein occurs in a small percentage of people of African descent. As a result, some of these individuals are far more susceptible to severe sepsis and have a significantly increased risk of dying from it." Sepsis, the body's inflammatory response ...

New DNA 'fingerprinting' technique separates hemp from marijuana

...acramento, found that the AFLP (amplified fragment length polymorphism) technique generated hundreds of genetic markers that together established separate identities for each of the four cultivars. "We think this technique has the potential to distinguish marijuana varieties as well," said Weiblen. "It has...

Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice

...tudies. They are small - only about a half inch in length - they grow quickly, and are relatively inexpensive to maintain compared to mice or rats. "Zebrafish are the only vertebrate embryo you can even think about doing this type of work in," says Shannon Fisher, M.D., Ph.D., the study's first author and a...

Junk DNA may not be so junky after all

...tudies. They are small - only about a half inch in length - they grow quickly, and are relatively inexpensive to maintain compared to mice or rats. "Zebrafish are the only vertebrate embryo you can even think about doing this type of work in," says Shannon Fisher, M.D., Ph.D., the study's first author and a...

World faces challenge as life expectancies lengthen, scientist says

...y distanced from the poor, not only in quality but length of life. Tuljapurkar warned that the distribution of anti-aging technologies is likely to be in the hands of companies that have a history of focusing solely on profit rather than the imperative to distribute medicines to those who need them most. ...

Whole-genome study at Johns Hopkins reveals a new gene associated with abnormal heart rhythm

...particular risk factor - the so-called QT interval length - for sudden cardiac death. The work will be published online at Nature Genetics on April 30. "In addition to finding a genetic variant that could be of clinical value for sudden cardiac death, this study also demonstrates how valuable large-scale ...

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