Black raspberries show multiple defenses in thwarting cancer
...BA, a chemical carcinogen that induces esophageal cancer. NMBA is one of a group of chemicals called nitrosamines, compounds that have been linked to cancer. Nitrosamines are found in fried bacon, cured meats, tobacco products, b...Highly specific biological agents attack mechanisms of treatment resistance
...it concluded. Antisense drug plus chemotherapy induces remission in relapsing and resistant leukemia An experimental drug that blocks a protein associated with resistance to chemotherapy may offer new hope to leukemia patients for whom standard chemotherapy has failed, according to data from a Phase I ......ormally high expression of Myc in lymphoid B cells induces lymphoma development and leukemia. The tumors that develop in these Myc transgenic mice often also have spontaneous mutations in p53 or Arf, which regulates p53. This spontaneous loss of p53 or Arf is the result of a selection process occurring with...Protein could help rejuvenate oxygen-starved cardiac tissue, heal wounds
...mice have shown that while over-expression of VEGF induces the growth of blood vessels, the capillaries are leaky, the tissues are inflamed and swollen, and the blood vessels have an abnormal corkscrew-like shape. In the current study, researchers genetically engineered mice to overexpress the HIF-1α ...Illuminating how plants adapt to light
...oreceptor is working properly, excitation by light induces a turnover of the protein. But with the LM-2 allele, we found that the protein wasnt turned over but was accumulating, which indicated that it wasnt signaling properly, said Chory. Additional studies revealed that the mutated phytochrome A in the LM-...Monitoring epithelial plasticity, one cell at a time
...CD) of the kidney. Over a period of days, acidosis induces one epithelial cell type in the CCD, the so called b-intercalated cells, to adopt the characteristics of another cell type, the a-intercalated cells. Intercalated cells of both types employ a proton ATPase and an anion antiporter system to transport ...CNS cell death in bacterial meningitis
...ame authors showed that exposure to these bacteria induces a caspase-independent cell death pathway. In this response, the mitochondrial protein apoptosis-inducing factor (AIF) translocates to the nucleus, where it activates some of the early events in apoptosis, including chromosomal condensation, DNA cleav...Fox Chase Cancer Center offers topical gel to treat precursor to skin cancer
...ell function. The drug inhibits cancer growth and induces apoptosis, or programmed cell death. Patients who are newly diagnosed with parapsoriasis or who have skin lesions suggestive of, but not diagnostic of CTCL, maybe eligible to participate in this clinical trial, which is only available at Fox Cha...Hypoxic mucus favors Pseudomonas infections in cystic fibrosis
... substitute for molecular oxygen. However, hypoxia induces a stress response in the bacteria, promoting a mucoid phenotype. As has been seen in other bacterial species, this transition may allow the bacteria to evade host defenses and even survive exposure to antibiotics. Worlitzsch et al. suggest that the g...Exposure to toxin in certain foods could cause testicular cancer
...toxin A during pregnancy or early childhood, which induces damage to testicular DNA. Ochratoxin A is transferred through the placenta to the fetus, and also is present in mothers' milk, so infants could be exposed through breastfeeding. The DNA changes remain dormant until testicular growth at puberty promot...The science of the scoop: Wheat proteins for ice cream?
...t be pasteurized, then homogenized. Homogenization induces changes in the physical structure of the fat, decreasing its particle size, and adding stabilizer proteins to the particles' surfaces. In the ensuing refrigeration step, the fat must be crystallized right away, to achieve the desired liquid and cryst...Neural stem cells move to damaged areas of brain after injury
...rent adds. Our results show that injury definitely induces proliferation of neuroblasts in the brain. They start to migrate to the injured area and develop into neurons. Some even become neurons appropriate for the injured area, Parent says. Because the precursor cells move through tubes formed by proliferat...Enzyme once thought harmful to Alzheimers patients now appears key to future treatment
... ACh turnover by upregulating ChAT synthesis also induces galanin gene expression in the cholinergic basal forebrain . This recommends that an increase in galanin, through its excitatory effects on the cholinergic basal forebrain neurons, could cause increased release of ACh, which would be entirely consi......ed a safer, more cost-effective training tool that induces symptoms of hypoxia in a normal room at normal air pressures. The Reduced Oxygen-Breathing (ROB) device, an aviation mask attached to a computer-controller gas reservoir, adds nitrogen to the air a student breathes, thereby providing the amount of ox...New tool speeds study of mammalian protein function
...nt outcome of the new technique is that the vector induces persistent silencing of protein synthesis, whereas when synthetic RNAs are applied to the cell, the effect may be only transient. "There are experiments that just can't easily be done with synthetic double-stranded RNA," Shi said. Guangchao Sui and C...Physical effort does not automatically lead to worsening of fibromyalgia symptoms
...nse. It is known that healthy subjects, exercise induces activation of muscle sympathetic nervous activity, as well as more general SNS activity, especially when the exercise exceeds a certain level or duration. The SNS activity during exercise is important for performance of exercise and also closely rela...UB study finds early nutritional modification programs metabolism, predisposes to obesity
...set in response to a high carbohydrate diet, which induces permanent changes at the molecular level in our rat model," Patel said. "The HC phenotype is transferred from cell to cell, is expressed for life and is transmitted to succeeding generations." Patel and colleagues were the first to manipulate the c...First live studies of important cell structures may shed light on Alzheimer's, other diseases
...dies, and a similar expression of this CT fragment induces formation of the bodies in mouse cells. "These results show that formation of Hirano bodies is restricted neither to mammalian cells nor to nerve cells," wrote Fechheimer. "Rather, the formation of Hirano bodies appears to be a general response to or...UCSF finding offers provocative insight into what drives cancer
...integrated. Scientists have known that while c-Myc induces cell proliferation, it also has the potential to trigger cell death in cells that proliferate inappropriately and in the wrong tissue environment. However, this theoretical safety valve has never been observed before in a living tissue. The research...