UCLA discovery prevents cell abnormality leading to progeria
...m heart disease before age 15. The rare disorder stems from a mutation in a gene that produces an abnormal cellular protein, which attaches itself to structures in the cell's nucleus. The accumulated protein deforms the nucleus, sparking miscommunications with other cells and leading to the genetic dise...The right hitchhiker can save an aphid's life
...aphids' variation in resistance to wasp parasitism stems from their bacteria, not their genes. "Aphids are just completely nailed by natural enemies. Having these symbiotic defenders is really important to the aphids," Oliver said. "Now we know symbionts confer resistance, but we don't know the mechanism o...Scientists focus on 'dwarf eye'
...y distant or near objects clearly, respectively -- stems from the complex growth of the human eye. All human eyes have a slight degree of farsightedness at birth. As the child grows and gains more visual experience, the eye adjusts its focus by growing, which changes the distance between the lens and the r...Pall systems play key role in landmark NIH study on cord blood
...its, and an efficient means of matching cord blood stems cells with patients of all ethnic backgrounds who require a transplant. Pall's cord blood sets for collection, processing and cryopreservation are used by the New York Blood Center's (NYBC) National Cord Blood Program, the world's oldest and largest ...Two designer drugs hit same lung cancer target, but only one is effective
...n-small-cell lung cancer (NSCLC), the overactivity stems from a mutant EGFR protein: those patients tend to have a better outlook, and Iressa and Tarceva are particularly effective for them. Mukohara and his colleagues wanted to determine whether Erbitux might be another option for NSCLC patients who carry...In some cases, genetic resistance takes on a life of its own
...s evolutionary flashes in the pan. This assumption stems from the prediction that resistance mechanisms will always carry a so-called "fitness cost" that will work against a genetic trait over time. Like heavily armored knights transported from battlefield to city, resistant individuals would be expected t...Amphetamines reverse Parkinson's disease symptoms in mice
...t, emotion, pleasure and mood. Parkinson's disease stems from the degeneration of neurons in a brain region that controls movement. That degeneration, in turn, leads to a shortage of the chemical messenger dopamine. The finding that amphetamines can alter movement independently of dopamine opens up new dir...Australian discovery of adult stem cells in the uterus could restore your pelvic floor & more
...m endometrial tissue in the uterus. "While adult stems cells have been found in other parts of the body, no-one has ever identified them in the uterus before," said Dr Gargett, a senior scientist in the Centre for Women's Health Research at MIMR. "Not only will this assist with understanding how several ...... Some Macaranga trees in South East Asia have waxy stems to protect themselves from ants and other insects. Only one specific ant is capable of running up and down the stem, in order to access its nest and food supply inside the stem. Tanja Bruening and Holger Bohn from the University of Wuerzburg, German...Salivating aphids and dynamic proteins
...orisomes block the sieve plates (structures in the stems which regulate fluid transport) by changing their shape and acting as a 'plug'. The dispersion of the forisome protein prevents fluids from leaking out of the plant (otherwise your plants would 'bleed' to death when you mow your lawn!). Aphids over...Scripps research scientists discover new key to pulmonary edema in respiratory distress syndrome
... of the bronchi, which bifurcate like thousands of stems branching from a trunk into about 30,000 tiny terminal "bronchioles" in each lung. At the ends of the bronchioles are tiny grape-like clusters of air sacs known as the alveoli. It is in the alveoli that the gas exchange with blood occurs. The alveoli...Scientists construct a physical map of the Drosophila buzzatii genome
...tailed maps ever built in Drosophila. Its interest stems from the species Drosophila buzzatii , which is widely used in studies of genome evolution, ecological adaptation and speciation. Now, thanks to the genomic library and the physical map, the international research community will find it easier to co...Clear rules needed to govern deep sea bioprospecting: UNU
...regulate deep seabed bioprospecting. This division stems from limited knowledge about the environmental impacts and economic potential of deep seabed bioprospecting, combined with a strong sensitivity to countries' freedoms in international areas." "Ethical concerns have been raised with regard to the stat...Washington State University study points to role of toxins in inherited disease
...oded in the DNA sequence. Instead, the information stems from small chemicals, such as methyl groups, that become attached to the DNA. In epigenetic transmission, the DNA sequences the genes remain the same, but the chemical modifications change the way the genes work. Epigenetic changes have been observ...White-coat effect is virtually eliminated using a non-drug hypertension
...ting of the American Society of Hypertension (ASH) stems from analyses of pooled data taken from 6 separate clinical trials, performed with the device. The analysis, led by Dr. William J. Elliott, from the Department of Preventive Medicine, RUSH University Medical Center in Chicago found that 8-weeks of f...Biomarkers isolated from saliva successfully predict oral and breast cancer
...ancreatic cancers. "In my mind the biggest hurdle stems from the fact that salivary nucleic acids or protein markers might be influenced by eating, drinking, smoking, diet or oral hygiene," said Wong. "So our goal is to provide the optimized and standardized protocol to assure consistent results." The stu...Unconventional brain circuits offer clues to insomnia-obesity connection
...y sudden bouts of deep sleep. Narcolepsy generally stems from a shortage or malfunction of hypocretin neurons. The neurons also induce appetite, an important activity for the control of food intake. Yet the integration of the brain cells' roles in arousal and appetite remains largely unexplored, Horvath sa...Scientists seek answers on what activates deadly anthrax spores
... University of California, San Diego. The research stems from lessons learned from studying the bacteria that cause Staphylococcus infections and two other bacteria in the same group as anthrax. Claiborne said the group proposes that a vitamin B5 derivative known as Coenzyme A plays a crucial role in the g......in ecosystems. Sometimes having fungi inside their stems is a good thing for plants, said A. Elizabeth (Betsy) Arnold, curator of UA's Robert L. Gilbertson Mycological Herbarium and an assistant professor of plant pathology. "It's often great. Such fungal endophytes can serve as plants' immune systems, in ...