New clue why MS affects African-Americans differently than Caucasians
... MS, recent genetic studies have begun to identify certain genes which may explain why African Americans experience more disability, but the products of these genes and the mechanism of their effects remain unknown. The study found that African Americans had MS for an average of nine years before needing a...JCI Table of Contents -- July 2, 2007
...ritical for SCC development. The authors show that certain p53 mutations occurring in human SCCs demonstrate ... pancreas and researchers have long asked why only certain organs are targeted in autoimmune disease. In so-called NOD mice (an animal model of type 1 diabet...p53 gene mutations and inflammation trigger skin cancer
...ritical for SCC development. The authors show that certain p53 mutations occurring in human SCCs demonstrate gain-of-function properties that accelerate the frequency and progression of malignant SCC. Future studies will hopefully discover ways to target these mutations for therapeutic purposes. A link bet...Europe struggles to meet the challenges posed by PGD patients travelling abroad
... of the treatment, test availability, expertise in certain diseases, cost and length of waiting lists in their home countries. This is the first EU-wide study of provision and regulation of PGD, a technique for testing embryos fertilised in the laboratory for specific genetic or sex-linked disorders such a...Endometriosis increases the risk of certain cancers
...ey did find that the women had an elevated risk of certain types of cancer, but that there was no significant difference in risk between women who had never given birth and those who had. We found that, contrary to what one might expect, endometriosis and nulliparity did not combine to give a higher risk ...Stressed-out African naked mole-rats may provide clues about human infertility
...on-breeders are translated into the suppression of certain fertility hormones (luteinizing and follicle stimulating hormones). In the non-breeding females this has the effect of suppressing the ovulatory cycle, while in the non-breeding males it causes lower testosterone concentrations, and lower numbers of ......ay for sufferers to manage the problem is to avoid certain foods and make sure they have injectable adrenaline at hand. Scientists led by Dr Claudio Nicoletti at the Institute of Food Research in Norwich have found that a molecule called Interleukin-12 (IL-12) is absent during allergic responses. Dr Nicole...Modern brains have an ancient core
...ile RF-amide appears to be secreted in response to certain chemicals. The EMBL scientists now assume that such multifunctional sensory neurons are among the most ancient neuron types. Their role was likely to directly convey sensory cues from the ancient marine environment to changes in the animals body. Ove...Military bases can benefit by addressing sprawl issues and biodiversity
...which, if present on a military base, can restrict certain training or testing operations. REPI allows military departments to partner with state and local government agencies and non-governmental organizations, like conservation groups, to establish buffer areas near training and testing areas. Buffer...Nanoparticles hitchhike on red blood cells: a potential new method for drug delivery
...od cells; the strategy has already been adopted by certain bacteria, such as hemobartonella, that adhere to RBCs and can remain in circulation for several weeks. The researchers say that it may be possible to keep the nanoparticles in circulation for a relatively long time, theoretically up to the circula...Early environmental exposure may accelerate age-related neurodegeneration
...d that protects cells in the body from damage from certain forms of oxygen, a kind of antioxidant, could suppress such neural degeneration. Previous studies indicated that both early exposure to iron and later exposure to the herbicide paraquat independently increase oxidative stressan environment in whi......be seen as one such failed consensus. Agreement at certain levels is possible, but Wells points out that consensus between multiple stakeholders, while acceptable at a political level, increasingly seems inadequate to the task of creating sustainable societies. Wells explains that there are several global ...Scientists discover role of enzyme in DNA repair
...is mystery. Casellas research focuses largely on certain genes that are deliberately broken and repaired as part of the immune response. Through a tightly controlled process of breaking and rejoining DNA segments, immune system cells called B lymphocytes are able to produce tens of millions of different ty......od cells; the strategy has already been adopted by certain bacteria, such as hemobartonella, that adhere to RBCs and can remain in circulation for several weeks. The researchers say that it may be possible to keep the nanoparticles in circulation for a relatively long time, theoretically up to the circula...Researchers find gene that spurs development of the epididymis
...tein, activin, that spurs a cascade of activity in certain cells. By staining the cells of the developing epididymis for inhibin beta A and for a marker of activin activation Yaos team was able to show that inhibin beta A was spurring activity in the cells that form the walls of epididymal tube. Furthe...Bisphosphonate treatment is associated with jaw bone problems
...s. From the database, they could not determine for certain whether the bisphosphonates caused the bone problem or if the patients were already predisposed to bone problems. They also found that the use of these drugs increased from 170 patients in 1990 to 5,348 patients in 2003. Future research should incl...MIT tool determines landslide risk in tropics
...are now will specify a maximum building height and certain structural requirements that are standard for the ...ased stabilization provided by installing piles at certain points on a slope, blasting could be more stringently controlled during road construction and mining...How fish punish 'queue jumpers'
... group and the coral reef it occupies means almost certain death to the loser. It is clear the fish accept the threat of punishment and co-operate as a way of maintaining their social order and thats not so very different to how humans and other animals behave. Dr Wong said that experimentally it has al...News tips from ACS Chemical Biology
... In the current issue we learn how cells die when certain chemicals bind to DNA; fast ways of creating new molecules normally made by bacteria; insight into how thyroid hormone works in the body; a new technique for determining enzyme specificity; and understanding the regulation of attaching proteins to m...American Chemical Society's Weekly PressPac -- June 20, 2007
...are reporting development of a process that breaks certain plastics down into their original chemical ingredi... that are trashed each year. Instead, recycling of certain plastics involves melting and reforming into plastic that is less pure than the original. Akio K...