Knockout News and Research

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Insulin receptors play a critical role in promoting islet growth

A new Joslin-led study has identified the insulin receptor as an important protein that promotes islet cell growth in mice whose bodies are unable to use insulin properly, or are insulin resistant, a precursor to type 2 diabetes.

4 Apr 2007

Researchers identify gene for osteoporosis

Researchers report the identification of a gene that may play a role in susceptibility to osteoporosis, the crippling disease that leads to bone fractures, especially of the hip and spine.

31 Mar 2007

Causes of heart failure

In most cases, heart failure is due to the impaired ability of the heart muscle to pump blood through the body. However, in some cases, the heart no longer functions normally because it is not filled properly. This process is largely determined by the elastic scaffold protein titin.

12 Feb 2007

FoxOs shown to be potential new targets for cancer drugs

In an elegant, multiple-gene knockout experiment, a team of Boston scientists has discovered that a trio of molecules, called FoxOs, are fundamentally critical in preventing some cancers, maintaining blood vessel stability, and in keeping blood-forming stem cells healthy.

29 Jan 2007

SH2B1 protein plays a key role in controlling body weight, response to insulin and leptin

A single protein in brain cells may act as a linchpin in the body's weight-regulating system, playing a key role in the flurry of signals that govern fat storage, sugar use, energy balance and weight, University of Michigan Medical School researchers report.

29 Jan 2007

Safety of t-PA clot-busting therapy questioned

Across the world, emergency medical teams often administer a powerful clot-busting drug called tissue plasminogen activator (t-PA) to help patients stricken by heart attack.

13 Nov 2006

Scientists spot mechanism behind promising new sleep drug

An experimental drug called gaboxadol may soon help millions of bleary-eyed insomniacs get to sleep, and a multi-center team of U.S. scientists believes they've pinpointed just how the drug works.

1 Nov 2006

Otoferlin, defective in a human deafness form, is essential for exocytosis at the auditory ribbon synapse

By studying a gene earlier linked to deafness in humans, researchers now have new insight into the molecular process by which components of the inner ear send messages to the brain.

20 Oct 2006

SUMO1 gene implicated in cleft lip and palate defects

Researchers supported by the National Institutes of Health report in the current issue of the journal Science that a much-studied gene called SUMO1, when under expressed, can cause cleft lip and palate, one of the world's most common birth defects.

21 Sep 2006

NIH launches "Knockout Mouse Project"

The National Institutes of Health (NIH) today awarded a set of cooperative agreements, totaling up to $52 million over five years, to launch the Knockout Mouse Project.

7 Sep 2006

Research illustrates BAG3 protein's importance in maintaining mature skeletal muscle

Muscle cells that should grow stronger with use instead self-destruct when a protein called BAG3 isn't around, researchers have shown.

30 Aug 2006

Finding opens new pathways for treating or preventing autoimmune diseases

A rare genetic defect that can trigger a host of diseases from type 1 diabetes to alopecia has helped explain the imbalance of immune regulator and killer cells in autoimmune disease.

31 May 2006

Researchers have made important progress in regenerating hearing cells

Massachusetts General Hospital (MGH) researchers have made important progress in their ongoing effort to regenerate the inner ear's hair cells, which convert sound vibrations to nerve impulses.

3 May 2006

Identification of CPT1c gene that the brain needs to manage body weight

Working with genetically engineered mice, Johns Hopkins scientists have interfered with the brain's ability to control an animal's response to a high-fat diet.

3 May 2006

Kidney treatments may be improved with new understanding of cell death mechanism

Finding how two proteins conspire to get kidney cells to self-destruct when oxygen supplies are low may one day improve dismal mortality rates for ischemic renal failure, researchers say.

23 Apr 2006

Study reveals findings on how insulin-producing beta cells grow and function

A new Joslin Diabetes Center-led study has shown conclusively that two receptors in the insulin-producing beta cell do not affect developmental growth, refuting a long-held hypothesis in diabetes research.

23 Apr 2006

Hap1 protein could lead to future drug targets for eating disorders

Researchers have discovered how the protein Hap1, which is abundant in the brain's hypothalamus, serves as the link between circulating insulin in the blood and the neural circuitry that controls feeding behavior in mice.

16 Apr 2006

Researchers identify new disorder called cortical dysplasia-focal epilepsy syndrome

Researchers from the Translational Genomics Research Institute (TGen) and the Clinic for Special Children (CSC) in Strasburg, PA, have described a new childhood-onset disorder characterized by severe epilepsy and autistic traits, and identified its genetic basis.

11 Apr 2006

Researchers identify potential targets for more effective analgesic drugs with potentially fewer side effects

Studying mice, pain researchers at Washington University School of Medicine in St. Louis have identified two key components in the pain cascade that may provide targets for more effective analgesic drugs with potentially fewer side effects

6 Apr 2006

Genome evolution in gibbons erased fat gene

Scientists from The University of Tokyo have discovered that gibbons, arboreal primates that inhabit the jungles of Southeast Asia, do not carry a major obesity gene that is present in the genomes of all other primates, including humans.

4 Apr 2006