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Tag: "lesions" at biology news

CSIRO scientists join fight to save 'Tassie devil'

...ate AAHL scientists have processed and examined 29 lesions from 12 affected animals and have also collected and processed a further 30 affected animals where both tumour tissue and tumours grown in the laboratory were examined. A recent Senior Scientist’s Scientific Forum on the DFTD reviewed progress in...

New bacterium discovered -- related to cause of trench fever

...Koehler recalls. “They can cause extremely painful lesions and tumors of blood vessels on the skin of immunocompromised patients. But when I saw this patient, this type of infection had never been seen at UCSF, and the bacterium causing the infection was unknown.” Koehler’s group went on to discover tha...

Cytomegalovirus exacerbates atherosclerosis through an autoimmune mechanism

...fection can be responsible of the initial vascular lesions typical of the atherosclerotic process. The mechanism involved in the vascular lesion is of autoimmune origin: antibodies directed against particular proteins of the virus are able to bind molecules expressed on the surface of the cells that line the...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...e imaging technique using ultrasound to search for lesions in breast tissue. Generally the rival approaches ... Mammography (using x rays) has trouble detecting lesions in dense breasts often seen in young women. Conventional ultrasound can spot lesions but cannot mea...

Major gene study uncovers secrets of leukemia

...nificantly speed the identification of the genetic lesions that are the underlying cause of not only ALL, but also many other cancers, including those affecting adults," said James Downing, M.D., scientific director and chair of the Pathology department at St. Jude. He is senior author of the paper. The ...

Genetic pathways to curable and incurable forms of pancreatic cancer identified

...rm of ductal adenocarcinoma associated with cystic lesions that can be detected earlier, is less aggressive a...h the creation of a distinct class of precancerous lesions in the ductal epithelium called mucinous cystic neoplasms (MCN). This initiates a process that resul...

Insomnia drug can improve brain function

...ntrol movement and verbal expression, but that the lesions that occurred due to oxygen deprivation may have been too severe to allow spontaneous speech. They conclude that single patient trials can be a logical approach to identifying potentially beneficial drugs, especially in the case of rare or orphan dis...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...ne research. Substantial impact on precancerous lesions and HPV infections through 5.5 years in women vacc... occurrences of cervical intraepithelial neoplasia lesions ?abnormal, precancerous cell growths found in the cervix. They also found that the vaccination ...

New research shows that flu is a trigger of heart attacks

... Madjid said: "Most people develop atherosclerotic lesions in their coronary arteries in early childhood and these lesions grow over time. Inflammation plays a pivotal role in development and growth of these lesions. Most p...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...he body ?compared the original descriptions of the lesions with modern images of 50 benign ulcers and 50 gastric cancers. They determined that no benign cancer could look like the lesion described in the autopsy. "It was a huge mass from the entrance of his stomach to the exit. It was at least 10 centimet...

Inhibiting blood to save the brain

...n that failed to bind Mac-1 had fewer inflammatory lesions and less severe MS symptoms. Blocking the interaction between Mac-1 and fibrinogen after the first episode of paralysis using the fibrin peptide prevented subsequent relapses. It also prevented further microglia activation and damage to myelin in t...

Stretching DNA to the limit

...leotide chains, as well as causes the formation of lesions by linking together the adjacent strands. The small changes in structure induced by this crosslinking can very profoundly affect the ability of DNA to recognize specific molecules, and can thus completely disrupt its ability to replicate and interact...

Pregnancy hormone key to repairing nerve cell damage

...mice. Further, when non-pregnant mice with MS-like lesions were injected with prolactin, their myelin was also repaired. The research was based on evidence that MS, which is more common in women than men, goes into remission when women become pregnant. MS is a neurodegenerative disease where the body's ow...

Smokers quit after damage to brain region

... "This is the first study of its kind to use brain lesions to study a drug addiction in humans," Naqvi said. In the 1990s, Antonio Damasio proposed the insula, a small island enclosed by the cerebral cortex, as a "platform for feelings and emotion." The Science study shows that the pleasure of smoking appe...

Decoy pill saves brain cells

...zures still occurred, as in control mice, no brain lesions were observed in the subjects. "We eliminate a big chunk of neuronal death," Baudry said. "I was surprised that this works. It looks like the peptide is almost completely neuroprotective." Baudry, one of USC’s most frequently cited researchers,...

Antioxidant protects against lung damage in silicosis

...Silica particles were consistently associated with lesions containing HO-1 expressing cells," added Dr. Ishigatsubo. "The number of HO-1-expressing cells was significantly higher in patients with silicosis than in control subjects." The investigators said that their present results indicate that silicosis...

Insulin receptor stops progression of Alzheimer's disease

...they decrease oxidative stress, resulting in fewer lesions in the brain. "If the diagnosis is suspected or patients are in the early phases of AD, there's a good possibility they could get treatment that will help them. It's possible that in the moderate phase, treatment will also help, but more work needs...

Elasticity imaging identifies cancers and reduces breast biopsies

...s correctly identified both cancerous and harmless lesions in nearly all of the cases studied. The findings w...east tissue. MRI and ultrasound depict more breast lesions than mammography but have low specificity, meaning they are less effective at distinguishing benign ...

Solved: The mystery of flesh-eating bacteria's relentless attack

...in. Mice receiving the original bacteria developed lesions that grew until the mice died; while mice receiving the mutant strain developed only small lesions that spontaneously healed. "The experiments show that SilCR downregulates the production of ScpC,...

Jefferson scientists identify gene mutation potentially involved in breast cancer initiation

...for some reason rises dramatically in premalignant lesions and cancer. Dr. Lisanti's team developed mice lacking the Caveolin-1 gene and found a dramatic increase in both number and activity of estrogen-positive receptors in mouse breast tissue, specifically in breast epithelial cells, in turn, promoting ce...

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