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Science News for January 14, 2007


New gene uncovered for late-onset Alzheimer's

Researchers discovered a new genetic variant SORL1 associated with late-onset Alzheimer's disease. The gene is linked to an increased risk of toxic amyloid beta peptides in the brain, leading to Alzheimer's disease.

SourceColumbia University Irving Medical Center·JournalNature Genetics·DateJan 14, 2007
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Scientists find new genetic clue to cause of Alzheimer's disease

Researchers have identified a new genetic clue that may contribute to the development of late-onset Alzheimer's disease. Variations in the SORL1 gene were found to be associated with an increased risk of the disease, and altering the levels of this protein changed the way amyloid beta fragments were produced in cells.

SourceNIH/National Institute on Aging·JournalNature Genetics·DateJan 14, 2007

Researchers first to map gene that regulates adult stem cell growth

A new study has identified a gene that regulates adult stem cell growth, which could lead to increased doses of chemotherapy and faster recovery times for cancer patients. The discovery also opens up possibilities for treating other diseases such as liver disease and diabetes.

SourceUniversity of Kentucky·JournalNature Genetics·DateJan 14, 2007

Scientists discover a new risk factor for Alzheimer's

Researchers identified a new genetic risk factor associated with late-onset Alzheimer's, implicating the SORL1 gene. Variants of this gene are linked to an increased risk of Alzheimer's, particularly in Caucasians, and may play a role in the production of toxic amyloid-beta fragments.

SourceHoward Hughes Medical Institute·JournalNature Genetics·DateJan 14, 2007

1 in 4 specialist trainee doctors 'very worried' about future job prospects

A survey of 127 specialist registrars reveals that nearly a third view working with patients directly in community settings as a bad development. The respondents felt poorly prepared to meet the challenge and wanted additional training, but only half believed this would improve their job prospects.

SourceBMJ Specialty Journals·JournalPostgraduate Medical Journal·DateJan 14, 2007

New cancer drug shown to be active in patients for the first time

Researchers found that a drug blocking nitric oxide synthesis significantly reduced tumor blood volume in patients, providing early clinical evidence of its anti-vascular activity. The study's results suggest potential for the use of this agent as a novel vascular targeting agent in cancer treatment.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateJan 14, 2007
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Novel approach to cancer drug given major boost

Scientists at ProXara Biotechnology Limited have identified a way to prevent tumour cells from growing by switching off key enzyme PKB. The research, funded by the Wellcome Trust Seeding Drug Discovery initiative, aims to develop a drug that can be used in clinical trials for lung cancer treatment.

SourceWellcome Trust·DateJan 14, 2007

Natural gut hormone offers hope for new obesity drug

Researchers have identified pancreatic polypeptide as a potential solution to appetite suppression, which may lead to a new obesity treatment. The hormone is naturally released in the gut and acts as a neurotransmitter to indicate fullness to the brain.

SourceWellcome Trust·DateJan 14, 2007

Alzheimer's gene identified

Researchers at the University of Toronto have identified a new gene, SORL1, associated with an increased risk of Alzheimer's disease in different ethnic groups. The discovery highlights the complexity of the disease's genetics and underscores the need for further replication studies.

SourceUniversity of Toronto·JournalNature Genetics·DateJan 14, 2007
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