Laboratory News and Research

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Alzheimer's researcher explores the variety of animal models now being used in research

Very few species spontaneously develop the cognitive, behavioral and neuropathological symptoms of Alzheimer's disease (AD), yet AD research must progress at a more rapid pace than the rate of human aging.

15 Dec 2008

Mechanism behind cardiac scarring discovered

In the aftermath of a heart attack, the body's own defenses may contribute to future heart failure. Authors of a new study believe they have identified a protein that plays an important role in a process that replaces dead heart muscle with stiffening scar tissue. The researchers are hopeful that the findings will lead to the development of new therapies to prevent this damage.

15 Dec 2008

Roche's new dual-target HIV-1 test approved in Europe

Roche announced today that its innovative dual-target HIV-1 test has received CE Mark certification, allowing it to be sold for clinical use in the European Union. The COBAS AmpliPrep/COBAS TaqMan HIV-1 Test, v2.0 utilizes a unique design to simultaneously amplify and detect two separate regions of the HIV-1 genome.

15 Dec 2008

Continuous positive airway pressure improves sleeping glucose levels in type 2 diabetics with obstructive sleep apnea

A study in the Dec. 15 issue of the Journal of Clinical Sleep Medicine suggests that screening type 2 diabetes patients for obstructive sleep apnea (OSA) and treating those who have OSA with continuous positive airway pressure (CPAP) therapy could improve the management of their hyperglycemia and might favorably influence their long-term prognosis.

15 Dec 2008

GUMC researchers find gene inactivated in two aggressive cancers

Researchers at Georgetown University Medical Center have found a gene they say is inactivated in two aggressive cancers - malignant melanoma, a form of skin cancer, and glioblastoma multiforme, a lethal brain tumor.

15 Dec 2008

New understanding of mechanism that regulates DNA methylation

Researchers in a University of Oregon lab have shed more light on the mechanism that regulates DNA methylation, a fundamental biological process in which a methyl group is attached to DNA, the genetic material in cells of living organisms.

14 Dec 2008

Cymbalta (duloxetine HCl) shown to delay new episodes of depression

New data suggest that Cymbalta (duloxetine HCl) 60 mg to 120 mg once daily delayed the onset of a new episode of depression in patients who had previously responded to the medication and who had recurrent depressive disorder, defined in the study as those patients who experienced at least three depressive episodes in the previous five years, compared with placebo (p < .001).

14 Dec 2008

Research aims to reduce scarring from heart attacks

A heart damaged by heart attack is usually broken, at least partially, for good.

14 Dec 2008

Zometa (zoledronic acid) shown to enhance chemotherapy in reducing breast tumor size

New data released demonstrates that the addition of Zometa (zoledronic acid) injection to standard chemotherapy before breast cancer surgery reduces the size of breast tumors more effectively than chemotherapy alone in women with early-stage disease.

14 Dec 2008

Promising clinical trial for Progeria "premature aging" disease

One of the fastest translations of a basic research discovery into a promising clinical trial for an "untreatable" and fatal disorder will be discussed publicly for the first time by the key players in this remarkable research story, on Sunday, Dec. 14, at the American Society for Cell Biology (ASCB)'s annual meeting in San Francisco.

14 Dec 2008

Research suggests that immunity is stronger at night

The immune system's battle against invading bacteria reaches its peak activity at night and is lowest during the day.

14 Dec 2008

Researchers find tamoxifen's power comes from endoxifen

Mayo Clinic researchers have discovered that a chemical known as endoxifen appears to be the primary metabolite responsible for the effectiveness of tamoxifen in treating breast cancer, and that it works against cancer in an entirely unexpected way.

12 Dec 2008

New Georgia initiative to improve rural hospitals

Seven rural Georgia hospitals will participate in a new initiative designed to help increase their capacity to serve patients, improve the quality of their services and reduce costs.

12 Dec 2008

Heart regenerates after infarction

Up until today scientists assumed that the adult heart is unable to regenerate. Now, researchers and cardiologists from the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch and the Charité - Universitätsmedizin Berlin (Germany) have been able to show that this dogma no longer holds true.

12 Dec 2008

Enzyme that mutates antibodies also targets cancer-causing gene

The human immune system is in a perpetual state of self-experimentation. It expertly mutates and shuffles the DNA of its own cells to evolve new defenses against the vast array of microbes that try to invade our bodies.

12 Dec 2008

Researchers capture never before seen undulations of "dancing chromosomes"

The rhythm of life may beat far deeper than anyone previously thought. And it may gyrate and pulse in a way that rivals the sensuous choreography of "Dirty Dancing."

12 Dec 2008

Scientists show that HIV's evolution in the body does not occur at a constant rate

HIV is so deadly largely because it evolves so rapidly. With a single virus as the origin of an infection, most patients will quickly come to harbor thousands of different versions of HIV, all a little bit different and all competing with one another to most efficiently infect that person's cells. Its rapid and unique evolution in every patient is what allows HIV to evade the body's defenses and gives the virus great skill at developing resistance to a pantheon of antiviral drugs.

12 Dec 2008

Enzyme that mutates antibodies also targets a cancer-causing oncogene

Rockefeller University scientists have discovered that the same enzyme that enables the immune system's defensive creativity is also responsible for a particular genetic malfunction - a translocation of one piece of DNA to the wrong chromosome - that causes Burkitt's lymphoma.

12 Dec 2008