Scientists find missing enzyme for tuberculosis iron scavenging pathway
...have discovered that a protein that was originally believed to be involved in tuberculosis antibiotic resistance is actually a "missing enzyme" from the biosynthetic pathway for an agent used by the bacteria to scavenge iron. The research appears as the "Paper of the Week" in the April 8 issue of the Journal...Research breakthrough in the understanding of the spread of cholera
...l distribution of cholera. Until 1967, researchers believed that humans may be the reservoir of cholera disease in the inter-epidemic period. In 2001, the University of Haifa team, led by Prof Meir Broza suggested that egg masses of non biting midges serve as a natural reservoir of cholera. It was discovere...Chemical compounds present in diet increase risk of colon cancer
...es, however, are not fully understood, but diet is believed to play an important role. It is thought that vegetables, fruit and fibre-rich foods protect against it; fats, red meat, as well as excessive consumption of calories, and obesity increase the risk of developing it. To better understand the causes, a...Was Agns Sorel, the first official royal mistress of France, poisoned?
...he official version. Nevertheless, a lot of people believed she had been poisoned because of her sudden death and because of all the enemies she had. To clarify the death of Agnes Sorel, at around the age of 28, a team led by Doctor Charlier from the CHU hospital in Lille is studying her remains through diffe...Alcohol 'binges' in rats during early brain development cause circadian rhythm problems
In a study believed to have implications for children and adults suffering from Fetal Alcohol Syndrome, rat pups given alcohol during a period of rapid brain development demonstrated significant changes in circadian or 24-hour rhythms as adults. The alcohol dosage was t...Gene mutation protecting against malaria linked to prostate cancer incidence in African-American men
...d ultimately into, the tumor. The DARC receptor is believed to bind to and remove angiogenic chemokines from a site of overproduction, such as inflammation or a tumor, thus limiting its ability to develop new blood vessel growth and feed itself for growth. Breeding mice genetically engineered to develop prost...New insight into brain and speech promises help for learning disabilities
...ll. --- Learning disabilities such as dyslexia are believed to affect nearly one in 10 children. To better study them, a Northwestern University research team has developed a data-driven conceptual framework that links two well-established scientific concepts. In doing so, they also have developed a non-invas...Molecular testing impact: Heart transplant patients benefit from new technology, easier monitoring
...c transplants performed worldwide each year, it is believed that the new molecular testing procedures will alleviate the need for tens of thousands of biopsies and the patient discomfort that accompanies the biopsy. The clinical value of AlloMap testing was demonstrated in a landmark multi-center, prospective...An (ecological) origin of species for tropical reef fish
...North to Trinidad and Tabago. This 2000 km gap is believed to be a strong barrier for corals and associated reef organisms." "My idea was to test whether or not wrasses in the genus Halichoeres were genetically different North and South of this barrier. Since all of these species have similar abilities to d...Scientists analyze chromosomes 2 and 4
...on of chromosome 4, the researchers found what are believed to be the largest "gene deserts" yet discovered in the human genome sequence. These regions of the genome are called gene deserts because they are devoid of any protein-coding genes. However, researchers suspect such regions are important to human bi...'Motherwell's babies' study may yield up clues for adult diseases
...recorded by local obstetrician Dr Kerr Grieve, who believed that many of the problems suffered by mothers and babies were due to an unhealthy diet. He designed a diet for pregnant women that would provide 'body building' foods for the healthy growth of babies. 957 men and women, born in 1967 and 1968, have a......is effort is particularly meaningful since FMRP is believed to regulate mRNA translation in the brain, and identifying the mRNA targets of this regulation would be a huge step in understanding how loss of this protein results in the varied and complex phenotypes of Fragile X syndrome. In most Fragile X patien...Signs of aging: Scientists evaluate genes associated with longevity
...ess," explains Dr. Brooks-Wilson. "It is commonly believed that a variety of genes and metabolic pathways contribute to the deterioration of cells, tissues and organisms during aging." In an effort to perform a comprehensive analysis of gerontology-related genes, the researchers compared gene-expression libr...Anammox bacteria produce nitrogen gas in oceans' snackbar
...s not carried out by denitrifying bacteria, as was believed for decades, but by anammox bacteria. Nitrogen com...are ether bound in the membrane. This property was believed to be restricted to the Archaea, the 'ancient' bacteria. Waste water treatment The anammox process, ...Extreme life discovery in Yellowstone bodes well for astrobiologists, says Colorado U. study
...eatures, at least some of Yellowstone microbes are believed to get energy from the dissolved metals and hydrogen found in the pore water of the rock, Walker said. A study by the CU-Boulder team published in January 2005 by the National Academy of Sciences indicated Yellowstone microbe populations living in h...Brain-injury rehabilitation depends on acetylcholine circuitry
... and traumatic brain injury. Researchers have long believed that rehabilitation from brain injury causes a rewiring, or plasticity, of brain circuitry--called a "reorganization of cortical motor representations"--to reestablish connections that control muscles. However, the specific type of brain circuitry on...Green tea shown to prevent prostate cancer
...s as a prophylactic against prostate cancer in men believed to be at higher risk, such as the elderly, African-Americans, and those with a family history of prostate cancer....Buying time through 'hibernation on demand'
...al normally produced in humans and animals that is believed to help regulate body temperature and metabolic activity. Within minutes of breathing the hydrogen sulfide and room-air cocktail, the mice stopped moving and appeared to lose consciousness, their respiration dropped from the normal 120 breaths per mi...Report suggests infectious connection to chronic diseases
... until the late 20th century, health professionals believed that chronic diseases such as peptic ulcers and cervical cancer were caused in part by lifestyle factors such as diet, stress and exposure to environmental toxins. In the last several decades, researchers have compiled strong evidence that most pept...Researchers identify protein crucial for survival of Lyme-disease bacterium
...k's feeding process. The energy for replication is believed to come from the proteins and nutrients made available as the tick breaks down whole blood. "For some reason, bacteria lacking the BptA protein either can't utilize the blood meal in the way the wild-type bacteria do, or something about the blood b...