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Tag: "lesions" at biology news

3-D ultrasound scanner could guide robotic surgeries

...atients' organs captured prior to biopsy to locate lesions suspected to be cancer. As artificial intelligence technology improves in the coming decades, the scanner might even be able to guide surgical robots without the help of a surgeon, the researchers said. The 3-D ultrasound probe has yet to be test...

Ghost protein leaves fresh tracks in the cell

...te therapeutic molecules to compensate for genetic lesions in diseases such as hereditary anemia, Duchenne muscular dystrophy, cardiac arrhythmia and the degenerative brain disease spinocerebellar ataxia 5. "As we learn more about mutations involving spectrin and their relationships to human diseases, we'r...

Potato blight pathogenicity explained by genome plasticity

... today. Infected plants are characterized by dark lesions on the stems, leaves, and tubers; damage to the tuber surface allows other fungi and bacteria to enter and destroy the core, often resulting in a foul odor. P. infestans is related to approximately 65 other pathogens that cause similar damage to c...

Links between DNA damage and breast cancer studied

...elated concentrations of two similar mutagenic DNA lesions and again demonstrated that their occurrence is ro...ing breast cancer risk." The findings suggest that lesions measured in the DNA of the stroma, which is readily obtained, may prove to be convenient and sensiti...

Precision biochemistry tracks DNA damage in fish

... bases of DNA, at extraordinarily low levels--five lesions out of a 100 million bases in one case. The results correlated well with earlier research and revealed similar damage to liver DNA (more likely tied to the fish's food) and gill DNA (more probably reflecting pollutants in water). The results suggest...

Higher risk for cervical cancer seen among women infected with multiple HPV types

...ultiple infections are at higher risk for cervical lesions than those ever infected with one type only and sh...icularly prone to increase risk" for pre-cancerous lesions in the cervix, said Helen Trottier, Ph.D., the first author of the research paper. Participating ...

Coming soon: 3-D imaging that flies 'through' and 'around' cancer

...T scan. Even so, with 3-D CT scans, small and flat lesions in the lungs and colon are difficult to see or characterize, said Quon. "Our study takes this to another level," he noted, indicating that fused PET/CT images with 3-D volume rendering may provide additional beneficial information for image interpret...

'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage

...nisms as radiation or chemical exposure, can cause lesions in DNA. The work was done entirely on computers in...e-Cytosine (G-C) base pair is involved in creating lesions that can lead to replication errors. This pair has 10 protons, meaning there are numerous targets fo...

Natural vitamin E tocotrienol reaches blood at protective levels

...d, which in excess can cause vascular and neuronal lesions associated with cardiovascular disease, and the fatty acid linoleic acid, which can directly stimulate damaging free radical activity. Fatty acids are related to stroke: They rapidly accumulate when a clot in a vessel stops blood flow to the brain, a...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...ked how quickly coral regenerated lost tissue from lesions they created while collecting samples. Scientists have long been concerned about declining coral reef health off the southeastern Florida coast, in the Florida Keys and worldwide. The World Research Institute's Reefs at Risk program has listed coas...

First human study confirms that immune cells can be a primary cause of bone loss in gum disease

...he cellular source of RANKL in the bone resorptive lesions of periodontal disease. An active periodontal lesion is characterized by the prominent infiltration of B cells and T cells, both of which are major immune lymphocytes. Specifically, the occupancy of 50-60% of such cellular infiltrates by plasma cell...

Speeding discovery of the 'human cancer genome'

...es have been linked to liver cancer, "how specific lesions interact to produce its aggressive characteristics remains poorly understood." Lowe's team relied on mice with specific pathological changes known to play a role in some liver cancers. They then searched for other spontaneous mutations in the anim...

Experimental drug reverses key cognitive deficits, pathology in Alzheimer's

...n attenuating the major hallmark neuropathological lesions relevant to AD and in restoring cognitive function, at least for certain tasks." They also pointed out the importance of the finding that administering dicyclomine to block M1 receptors exacerbated the disease pathologies. "Further work, including c...

Landmark discovery of a Kaposi's sarcoma-associated herpesvirus receptor

...ly 1980s, the small purplish Kaposi's sarcoma skin lesions began appearing on the bodies of young American men, many of whom went on to develop opportunistic infections. Dr. Berger became interested in KSHV because of his interest in how viruses enter cells. A decade ago, his research team was the first to...

Enzyme crystal structure reveals 'unexpected' genome repair functions

...R is a critical defense mechanism that removes DNA lesions caused by the mutating effects of sunlight (ultraviolet light) and toxic chemicals. In addition, NER is critical to the success of the anticancer drug cisplatin, since cisplatin works by initiating the process of DNA repair, in turn activating apop...

Loosen leash on cancer protein 'watchdog,' researchers say

...y trait that typically made them develop cancerous lesions in their intestines, but our main goal was to see ...isposition generally developed about 50 intestinal lesions within six months of birth, but mice modified for the study had only developed three or fewer within...

Face perception is modulated by sexual orientation

...nformation? Past work has shown that patients with lesions in orbitofrontal cortex are impaired in their ability to identify emotional facial expressions, suggesting that this region has an important role in the processing of facial cues required for social communication. In this light, the researchers sugge...

New antimicrobial compound adheres to skin to promote healing

...ooley to treat burns. It was later applied to skin lesions on fish and other aquatic animals. Tricide works by enhancing the effectiveness of antibiotics. "In the case of burn victims, whether animal or human, bacteria and fungi can infect the open wounds and kill the patient," Ritchie said. "We have found...

Losing sleep undoes the rejuvenating effects new learning has on the brain

...at people who have suffered certain types of brain lesions may be unable to screen out irrelevant stimuli suc...s do easily. A flip side is that people with these lesions tend to associate familiar stimuli with new information more rapidly than healthy counterparts, a ph...

Protein finding could lead to treatment for inflammatory diseases

...nt of populations tested in numerous studies. The lesions resemble chickenpox (a disease actually caused by ...ic infection in immunocompromised people, with MCV lesions growing very large and persisting for much longer periods, even years, in this population, Shisler s...

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