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Tag: "tissue" at biology news

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...rson to person and can cause serious skin and soft tissue infections as well as invasive infections such as bone or joint infections or pneumonia. Failure by physicians to suspect this kind of drug-resistant staph can lead to treatment with the wrong antibiotic. Pyomyositis is an acute bacterial infection ...

T-beta-RIII joins the fight against breast cancer

...of T-beta-RIII were less able to invade the breast tissue and to metastasize to other organs than tumor cells not engineered to express this protein. Further analysis revealed that the mechanism behind these protective effects of T-beta-RIII was likely to be T-beta-RIII cleavage at the cell membrane, which ...

First Quantum Grant to fund stem cell repair of damage from stroke

...new brain tissues in the laboratory. The new brain tissue is planned to have its own blood supply to allow i...o develop and differentiate, repairing the injured tissue in the process. "This project represents an integrated effort among leading scientists who have j...

A new approach to growing heart muscle

... muscle than ever before. The three-dimensional tissue was grown using an innovative technique that is fa... have been tried in recent years, but still yields tissue with significantly better properties. The approach uses a fibrin gel to support rat cardiac cells te...

'Erectile dysfunction' drugs heighten natural anti-cancer activity

...ted with sildenafil showed similar results, as did tissue samples taken from 14 head and neck cancer and multiple myeloma patients. Sildenafil, marketed under the trade name Viagra, is one of a class of drugs used to treat erectile dysfunction in millions of men, and in recent years, its ability to sti...

Fast test for low blood flow in dogs detects early heart trouble

...tes. When forced to pump faster, healthy heart tissue and surrounding blood vessels will adapt, while un... count the number of beads absorbed into the heart tissue to calculate blood flow. However, calculating blood flow from the 3-D, scanned CT images was more ...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

...erentiation of embryonic stem cells into different tissue types. Being able to manipulate individual switches would allow scientists to nudge embryonic stem cells into becoming specific cell types, a plus for both basic research and potential therapies. "At the moment, the differentiation of stem cells i...

MIT material stops bleeding in seconds

...olecules that cells can use as building blocks for tissue repair. "We have found a way to stop bleeding, i...tides to open wounds in several different types of tissue - brain, liver, skin, spinal cord and intestine. "In almost every one of the cases, we were able t...

Drug can quickly mobilize an army of cells to repair injury

...such as heart muscle after a heart attack or brain tissue after a stroke - doctors would like to be able to hasten the formation of new blood vessels. One promising approach is to "mobilize" patients' blood vessel-forming cells, called angiogenic cells, so these cells can reach the injured area. Recently, ...

Artificial cornea offers better results for infants, some blind patients

...ntinue to be the main source for transplants, such tissue can trigger a variety of problems, including rejec...ients whose previous transplants using traditional tissue have failed, oftentimes because of rejection by the immune system. Dohlman's latest implant, the ...

Key to lung cancer chemo resistance revealed

...dy, half of 12 lung cancer cell lines and 10 of 54 tissue samples from non-small cell lung cancer patients h... NRF2 activity in check. In addition, half of the tissue samples were missing one copy of the KEAP1 gene - cells usually have two copies of each gene. No mi...

HIV gets a makeover

...ake this virus work in animals the way it works in tissue culture, it will likely change the way that AIDS vaccine and therapeutics research is done," Bieniasz says....

Embryonic patterning makes the feathers fly

...iology, and on new biotech possibilities including tissue engineering....

Stem cells found in adult hair follicles may provide alternative to embryonic stem cells

...avoid ethical issues and reduce the possibility of tissue incompatibility," says Dr. Sieber-Blum. The Medical College team in collaboration with Prof. Martin Schwab, director of the Brain Research Institute of the University of Zürich, recently injected these cells in mice with spinal cord injuries. Accor...

Replacing insulin is top-ranked breakthrough foreseen for health in developing world

...tem cells, soluble molecules, genetic engineering, tissue engineering, and advanced cell therapy. There is increasing research in regenerative medicine in both developed and developing countries. Already regenerative medicine has produced a skin substitute (Apligraf), a bone regenerating therapy (Osteocel)...

U-M researchers use nanoparticles to target brain cancer

...r with higher doses of a drug while sparing normal tissue from a drug's toxic side effects. "Our research...at you can take a drug that may be toxic to normal tissue ?it could be any type of drug, not just photodynamic ?and you could deliver higher doses of that dru...

An artificial cornea is in sight, thanks to biomimetic hydrogels

...er trials are a next step. The current source of tissue for corneal transplants is cadavers. Donor tissue has problems, Ta notes, including a rejection rate of about 20 percent and a period for visual recov...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

...cases, the diagnosis remains uncertain until brain tissue is examined at autopsy. "Our study is the first to use sophisticated proteomic methods to hone in on a group of cerebrospinal fluid biomarkers that are specific to autopsy-proven Alzheimer's disease. Those postmortem tests confirmed that the panel...

Poor athletic performance linked to vitamin deficiency

...eeded to repair and maintain higher levels of lean tissue mass present in some athletes and individuals may all affect an individuals B-vitamin requirements, said Manore. "Many athletes, especially young athletes involved in highly competitive sports, do not realize the impact their diets have on their pe...

Vaccine for brain tumors shows promising results

...r that arises from the glial cells, the connective tissue cells that surround and support nerve cells. The ...gerprint. The vaccine is intended to leave healthy tissue unaffected and limit the debilitating side effects typically associated with traditional cancer trea...

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