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Tag: "length" at biology news

A new target for painkillers

... Conus regius, which measures 1.6 to 2.8 inches in length and lives from Georgia southward along Central America to Brazil's central coast. -- Vc1.1 is from the species Conus victoriae, which measures 1.4 to 2.8 inches long and lives off portions of Australia. RgIA and Vc1.1 fit like keys into lock-li...

Climate change creates dramatic decline in red-winged black bird population

..., but it did go up. We are currently measuring the length of the breeding season to see if that has changed, affecting the sex ratio as well." ...

Scientists find new way to manipulate DNA

...y, allowing scientists another tool to control the length of the strands of DNA. In genome sequencing, the first step is to take the genome and break it into small pieces to reassemble it into the DNA strand that is best for further biochemistry, Solomon said. ...

Pressured by predators, lizards see rapid shift in natural selection

... the direction of natural selection acting on limb length in a population of lizards." Losos and colleagues studied populations of the lizard Anolis sagrei on minuscule islands, or cays, in the Bahamas. They introduced to six of these cays a larger, predatory lizard (Leiocephalus carinatus) commonly foun...

Human stem cells delay start of Lou Gehrig's disease in rats

...of cells - already being planned -- along the full length of the spine to affect upper body nerves and muscles as well might lead to longer survival in the same rats. "We only injected cells in the lower spine, affecting only the nerves and muscles below the waist," he noted. "The nerves and muscles ab...

Caterpillars tell us how bacteria cause disease

...nimals such as amoeba and insects for a staggering length of evolutionary time. It seems likely that most virulence genes around today probably first evolved to work against these hosts". With funding from the Biotechnology and Biological Sciences Research Council's (BBSRC) Exploiting Genomics Initiative...

World's smallest cancer detection device

...e cells in diameter and a tenth of a millimeter in length ?in human tumors, where they would remain for days or weeks. The chips would report remotely to scanners that would "read" them on the nature of the cells that infiltrate them--in particular, on whether metastatic cells are present that would call fo...

Researchers barcode DNA of Venice museum's vast fungi collection

...NA that is known to be unique in each species. The length of the region varies from around 450 base pairs to 900 base pairs, depending upon the taxa from which it is sampled. "If you're going to cross-compare species, you've got to amplify the same region," said Sarah Bergemann, the post-doctoral researc...

Researchers give name to ancient mystery creature

...fur-bearing animal that measured 10 centimetres in length and due to its powerful jaws, likely had a strong bite. Most confounding are the animal's teeth, which resemble in superficial ways, those of primitive relatives of ungulates, the group of mammals which includes horses and cows. But despite that l...

Changing length of days reverses how estrogen affects aggressiveness in mice

New research shows how simply varying the length of daylight to which mice are exposed to can chang...nce. A major finding of this study was that the length of exposure to daylight affected how estrogen interacted ?or didn't interact ?with genes in the brai...

Very low birth weight linked to reduced quality of life in pre-school children

... include current health problems, age at delivery, length of stay in the neonatal intensive care unit and the educational level of the primary caregiver." Children ranging from 36 to 53 months were included in the study, supported by Taiwan's National Science Council. 57 per cent were boys. 252 mo...

Temperament linked to onset of cancer and early death in female rats

...he scholars found. There was no difference in the length of time between onset of cancer and death in the two set of rats, however, the scholars found. Because the findings have identified a difference in temperament that is associated with the onset of cancer, the findings may have implications for rese...

Parkinson's mutation stunts neurons

... into embryonic rat brain, they saw a reduction of length and branching of neuronal wiring during brain development. The researchers wrote that their findings offer "a useful animal model for early LRRK2-associated disease." They concluded that their techniques of introducing the mutated gene could lead ...

A giant among minnows: Giant danio can keep growing

...ion, known as the myotome. They measured growth in length and width and tracked the number and size of muscle fibers, and found that the fish employ different methods of growth. “Muscle growth in vertebrates is defined as being either determinate or indeterminate,?the authors wrote. “Animals such as mamma...

Elasticity imaging identifies cancers and reduces breast biopsies

...99 patients. Lesions were measured for the largest length on both the standard ultrasound image and the elasticity image. Lesions where the elasticity image was smaller than the standard image were characterized as benign, and lesions where the elasticity image was larger were characterized as malignant. ...

'Mindless autopilot' drives people to underestimate food decisions

...see-through dish. Always sit at least an arm's length away from a buffet table or snack bowl. ...

Study of gene transfer for erectile dysfunction shows promise

...the corpus cavernosum, expandable tissue along the length of the penis that fills with blood during erection. A variety of clinical and laboratory tests were used to assess safety. In addition, effectiveness was measured using the International Index of Erectile Function scale, a questionnaire that is commo...

Parasitic plants sniff out hosts

...how newly emerging dodder shoots find a host. The length of time these parasites can live without a host is determined by the amount of food stored in the seed, but they can only grow about four inches before they die. "These plants have no roots and barely have leaves and the flowers are very tiny," says...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...characterize components of biological samples on a length scale of 100 nanometers or less. ''There's currently no way to do that,'' Boxer said. ''You can't get more multidisciplinary than something like this. This is a big deal in terms of an analytical method with very high sensitivity and high spatial re...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

...d cells. Mice lacking the CPT1c gene are the same length as their littermates who carry normal copies of the gene but on average weigh 15 percent less when fed a low-fat diet. Further analysis revealed that when deprived of food for four hours prior to feeding with standard laboratory mouse chow, the knoc...

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