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Study looks at mitochondrial variation in sperm traits and sperm competitive ability

University of Nevada, Reno researchers Jeanne and David Zeh of the Department of Biology have received a five-year, $650,000 grant from the National Science Foundation to investigate the effects of natural mitochondrial variation on sperm traits and sperm competitive ability.

20 Sep 2007

Testes offer a promising new source of stem cells

After a decade of research, Howard Hughes Medical Institute scientists have succeeded in reprogramming adult stem cells from the testes of male mice into functional blood vessels and contractile cardiac tissue.

20 Sep 2007

Hydrogen sulfide limits severe heart attack damage

Administering hydrogen sulfide (H2S) directly into the heart during a simulated heart attack significantly reduces the tissue and cell damage often seen in oxygen-starved organs, according to a new study from researchers at the University of Alabama at Birmingham

20 Sep 2007

Better understanding of circuitry in the brain's emotion center

Whether it's a mugger or a friend who jumps out of the bushes, you're still surprised.

20 Sep 2007

Long-term cell phone use may cause inner ear damage

Hold the phone – long-term use of a cell phone may cause inner ear damage and can lead to high frequency hearing loss, according to a new study.

20 Sep 2007

Cell growth technology promises more successful drug development

Scientists have developed unique technology to grow stem cells and other tissue in the laboratory in conditions similar to the way they grow in the human body.

20 Sep 2007

3-D Petri dish that grows cells in three dimensions

A team of Brown University biomedical engineers has invented a 3-D Petri dish that can grow cells in three dimensions, a method that promises to quickly and cheaply produce more realistic cells for drug development and tissue transplantation.

20 Sep 2007

Planum temporale found to be responsible for perceiving auditory space

While the visual regions of the brain have been intensively mapped, many important regions for auditory processing remain terra incognita.

20 Sep 2007

Rapid testing for pre-natal detection of Down syndrome

Scientists in California are reporting an advance toward rapid testing for pre-natal detection of Down syndrome and other birth defects that involve an abnormal number of chromosomes.

18 Sep 2007

Test for lung cancer looks for discomforting quiet among protective genes

When it is quiet – "almost too quiet" – in movies, it is a sign that something is about to go wrong for the good guys.

18 Sep 2007

Re-engineered human T cells effectively target and kill cancerous B cells

Human white blood cells, engineered to recognize other malignant immune cells, could provide a novel therapy for patients with highly lethal B cell cancers such as acute lymphoblastic leukemia (ALL), according to researchers at Memorial Sloan-Kettering Cancer Center (MSKCC).

18 Sep 2007

Sexual function affected by stem cell transplant according to long-term study

A long-term study found that a type of stem cell transplant used for patients with life-threatening diseases, such as leukemia and lymphoma, results in decreased sexual function and activity for recipients.

18 Sep 2007

Researchers genetically engineering microorganisms, such as E. coli, into tiny, cellular factories

Microorganisms may soon be efficiently and inexpensively producing novel pharmaceutical compounds, such as flavonoids, that fight aging, cancer or obesity, as well as high-value chemicals, as the result of research being conducted by University at Buffalo researchers.

18 Sep 2007

Breakthrough in cardiovascular research

Cholesterol contributes to atherosclerosis - a condition that greatly increases the risk of heart attack and stroke - by suppressing the activity of a key protein that protects the heart and blood vessels, researchers at the Saint Louis University School of Medicine have found.

18 Sep 2007

New cell death pathway involved in sperm development

Heavy and bulky sperm would not be good swimmers. To trim down, sperm rely on cell death proteins called caspases, which facilitate the removal of unwanted cellular material and radically remodel these cells into their sleek, light shape.

18 Sep 2007

Helix BioPharma awarded U.S. patent for adjunct chemotherapy applications

Helix BioPharma Corp. has announced the issuance of its second DOS47 patent (U.S. Patent # 7,264,800) from the United States Patent & Trademark Office, describing a method and composition for combining targeted DOS47 therapeutics with weakly basic chemotherapeutic drugs in adjunct treatment applications.

18 Sep 2007

GlaxoSmithKline to pursue novel antibacterial research program for DOD

GlaxoSmithKline has announced that it has signed an agreement with the Defense Threat Reduction Agency (DTRA) of the U.S. Department of Defense (DOD), to identify and develop a new class of antibacterials targeting both Gram negative biothreats and conventional Gram negative hospital pathogens.

18 Sep 2007

Gene profiling can single out the worst cases of multiple myeloma and guide therapy

Multiple myeloma patients vary widely in how they respond to treatment, but now researchers at the Myeloma Institute for Research and Therapy at the University of Arkansas for Medical Sciences have identified a small subset of genes whose activity could predict high-risk cases and potentially guide therapy in the future.

18 Sep 2007

Chronic stress can steal years from caregivers' lifetimes

The chronic stress that spouses and children develop while caring for Alzheimer's disease patients may shorten the caregivers' lives by as much as four to eight years, a new study suggests.

18 Sep 2007

Chronic infection persists by targeting stromal cell network in lymphoid organs

One of the biggest challenges to treating infectious diseases and developing preventive vaccines is the ability of many chronic infections to suppress the immune T-cell response over time.

18 Sep 2007