The mouse genome and the measure of man
... is 2.5 billion DNA letters long, about 14 percent shorter than the human genome, which is 2.9 billion letter...ow the reasons for this, but they speculate that a shorter generation time, changes in living environment, lack of verbal and visual cues, and differences in r...New mammal species identified in Australia
... New South Wales and Queensland have smaller ears, shorter feet, and a longer, brushier tail than those in Victorian forests to the south. Although there is variability in both populations, years of morphological data collected by Lindenmayer and colleagues confirm that these differences are statistically si...Study provides direct evidence of the role of telomeres in prostate cancer development
...lular tissue) within HGPIN lesions were strikingly shorter than those of adjacent normal-appearing epithelial...lomeres of PIN lesions are approximately four-fold shorter than their normal counterparts. Perhaps most interestingly, the telomere shortening in HGPIN lesio...DNA separation by entropic force offers better resolution
...many pieces and passed through a porous gel, where shorter lengths will move faster and farther than longer o...ulse. The length of the pulse was adjusted so that shorter molecules were able to move completely into the pillar region, while longer ones could move only par...One gene, two important proteins
...gene in flies, called Stat92E, codes for a second, shorter protein in addition to the originally characterized, longer form. They then found that this new, short protein is missing an important region of the long protein - the same region required for its activity. This finding led them to ask if the purpose...A mane is a pain, but worth it for male lions
...'s mane length because recently injured lions have shorter manes." Females may not care as much that a male i...hat longer-maned males were hotter than those with shorter manes. It appears that beyond a certain length, there's no further cost to having a mane." The lion'...Not drinking cows' milk blamed for children's fractures
...just calcium deprivation, which contributes to the shorter stature and small bones of children who avoid milk." The study is the first to measure bone density throughout the skeleton of a group of young children who have avoided cows' milk. Low density was found throughout the skeleton (forearm, hip, spine a...'Jumping genes' create ripples in the genome - and perhaps species' evolution
...nines, one of the four building blocks of DNA, are shorter and even have other building blocks thrown into the pattern. Other researchers have suggested that newer (later) insertions have longer, purer tails, and indeed the man-made insertions had very long tails and no other bases in them, says Boeke. "We j...Medicated ecosystems: Human drugs alter key aquatic organism
... an antidepressant, produced no differences in the shorter trials, it did result in a greater number of offspring in the longer studies. "When Daphnia were exposed to a single pharmaceutical throughout their entire lifespan, as in the long-term studies, they seemed to become acclimated to the polluted enviro...... of two characteristics: the defective gene may be shorter than the healthy gene, or it may generate an entirely new protein. Ayyagari's next steps are to learn more about the nature of the mutation, and then to design studies that could one day lead to treatments for macular degeneration. For example, if t...New technologies to battle little known, widespread cattle disease
...m, we will be able to handle a lot of samples in a shorter time frame. This combined technology can identify clean herds and maintain their disease-free status by preventing the introduction of infected animals." Molecular techniques that Wu and her colleagues developed make the fast, accurate diagnosis feas...Multiple births - their risks and how to prevent them
...e embryos per transfer means higher efficacy and a shorter period of time to achieving births. However, evidence is accumulating that a policy leading to multiple births means increased risk of prematurity and, consequently higher mortality, disability and ill health. There are also psychosocial problems mo...Researchers developing technology to outsmart metastasized cancers
... radioactive agent from one month to two days. The shorter half-life of technetium also allows researchers to more safely inject patients with larger quantities of radioactive agents in order to improve the quality of the scanned image. Preclinical results of this research are expected to be published this f...Ecological risks of GMOs come in unexpected ways, model shows
... therefore had higher mating success but also had shorter life expectancy, could drive a wild population extinct in as few as 40 generations. Muir and Howard labeled this the "Trojan gene hypothesis." But further investigation has found other scenarios that could lead to extinction. In one scenario, a gene...Rutgers biomedical engineering professor solves golf grip mysteries
... during longer putts and less head movement during shorter putts. In a conventional grip, a person's dominant hand is the lower one on the club. A cross-hand grip places the dominant hand on top. One-hand grips use only one hand in the grip area. "Golf instructors and sports psychologists have long taught...Filtering patient's blood before kidney transplant allows transplant from any donor
...tal hospital costs are reduced and patients have a shorter hospital stay. Nearly 52,000 people are on the national waiting list for a kidney, according to the United Network for Organ Sharing. In their technique, Montgomery and colleagues gave the transplant recipients an average of three or four plasmap...Strange signals from breastfeeding
...cycles of volunteers: longer cycles got longer and shorter ones got shorter. The new study reveals a more subtle effect. While the women smelling the breastfeeding compounds did not report increased sexual activity-this behaviour was most obviously influenced by the absence or presence of a partner-they di...Angioplasty beats clot-busting drugs for most heart attack patients
...) later. In addition, the angioplasty group had a shorter stay in the hospital, averaging four and one-half days compared to six days for the drug group. "Our study and others suggest angioplasty is the better treatment, yet nearly two-thirds of heart attack patients present to hospitals that don't have th...Men regain evolutionary drivers seat
...compared closely related species, which involved a shorter evolutionary time span. For example, when they loo...he molecular clock runs faster in organisms with a shorter generation time because they undergo a larger number of cell divisions per unit of time. So, for exa...Brookhaven Spotlights: News from the National Synchrotron Light Source
...expected to produce light pulses up to 1,000 times shorter and a billion times more intense than light from t...of the DUV-FEL is to generate light at wavelengths shorter than 100 nanometers (vacuum ultra-violet light), which may open up new areas of research, just as th...