الاثنين، 25 فبراير 2013

ScienceDaily: Health & Medicine News

ScienceDaily: Health & Medicine News

Scientists find genes linked to human neurological disorders in sea lamprey genome

Posted: 24 Feb 2013 11:29 AM PST

Scientists have identified several genes linked to human neurological disorders, including Alzheimer's disease, Parkinson's disease and spinal cord injury, in the sea lamprey, a vertebrate fish whose whole-genome sequence.

Scientists find bone-marrow environment that helps produce infection-fighting T and B cells

Posted: 24 Feb 2013 11:29 AM PST

Medical researchers have deepened the understanding of the environment within bone marrow that nurtures stem cells, this time identifying the biological setting for specialized blood-forming cells that produce the infection-fighting white blood cells known as T cells and B cells.

General mechanism that accelerates tumor development discovered

Posted: 24 Feb 2013 11:28 AM PST

Two new articles describe how the CPBE1 protein "takes the brakes off" the production of proteins associated with the cell switch from being healthy to tumorous. The study highlights CPEB proteins as promising targets, thus opening up a new and unexplored therapeutic window. The lab has developed a system for screening compounds that impede the action of CPEB proteins in tumors.

Ability of brain to protect itself from damage revealed

Posted: 24 Feb 2013 11:28 AM PST

The origin of an innate ability the brain has to protect itself from damage that occurs in stroke has been explained for the first time. Researchers hope that harnessing this inbuilt biological mechanism, identified in rats, could help in treating stroke and preventing other neurodegenerative diseases in the future.

Scientists find surprising new influence on cancer genes

Posted: 24 Feb 2013 11:28 AM PST

Small stretches of DNA in the human genome are known as "pseudogenes" because, while their sequences are nearly identical to those of various genes, they have long been thought to be non-coding "junk" DNA. But now, a new study shows how pseudogenes can regulate the activity of a cancer-related gene called PTEN. The study also shows that pseudogenes can be targeted to control PTEN's activity.

New type of gene that regulates tumour suppressor PTEN identified

Posted: 24 Feb 2013 11:27 AM PST

Researchers have identified a new so-called pseudogene that regulates the tumor-suppressing PTEN gene. They hope that this pseudogene will be able to control PTEN to reverse the tumor process, make the cancer tumour more sensitive to chemotherapy and to prevent the development of resistance. The findings can be of significance in the future development of cancer drugs.

Analytical trick accelerates protein studies

Posted: 24 Feb 2013 11:26 AM PST

Researchers have found a new way to accelerate a workhorse instrument that identifies proteins. The high-speed technique could help diagnose cancer sooner and point to new drugs for treating a wide range of conditions.

Distinct niches in bone marrow nurture blood stem cells

Posted: 24 Feb 2013 11:26 AM PST

In research that could one day improve the success of stem cell transplants and chemotherapy, scientists have found that distinct niches exist in bone marrow to nurture different types of blood stem cells.

Asthma drug found highly effective in treating chronic, severe hives and itch

Posted: 24 Feb 2013 11:26 AM PST

An international team of researchers has found that a once-a-month, high-dose injection of a commonly used asthma drug is highly effective in treating teens and adults chronically afflicted with hives and severe, itchy rash. The drug, omalizumab, was tested on 323 people at 55 medical centers for whom standard antihistamine therapy failed to quell their underlying, allergy-like reaction, known as chronic idiopathic urticaria or chronic spontaneous urticaria.
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