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Half-dose vaccination in healthy young individuals may be effective in times of vaccine shortage

Individuals younger than 50 who have been previously vaccinated do not appear to have a substantially different immune response to a half-dose of influenza vaccine than to a full dose, according to a report in the December 8/22 issue of Archives of Internal Medicine.

8 Dec 2008

Genetic signature may lead to better treatments for pediatric liver cancers

Scientists have identified a genetic signature that is remarkably effective at predicting the prognosis of an aggressive liver cancer in children.

8 Dec 2008

Networks of interactive genes may predict Leukemia's development

Rather than testing for individual marker genes or proteins, researchers at the University of California, San Diego (UC San Diego) and the Moores UCSD Cancer Center have evidence that groups, or networks, of interactive genes may be more reliable in determining the likelihood that a form of leukemia is fast-moving or slow-growing.

8 Dec 2008

Discovery of protein that may cause breast cancer to spread

In an important finding published online in Developmental Cell , researchers at Albert Einstein College of Medicine of Yeshiva University, along with collaborators at Massachusetts Institute of Technology, have identified a protein likely responsible for causing breast cancer to spread.

8 Dec 2008

Trial shows safety of pre-transplant expansion of umbilical cord blood stem cells

Taking blood stem cells collected from an umbilical cord into the lab and expanding their number before transplanting them to replace a patient's blood supply is as safe as a standard cord blood transplant, researchers reported at the 50th Annual Meeting of the American Society of Hematology.

8 Dec 2008

An Achilles heel in cancer cells

A protein that shields tumor cells from cell death and exerts resistance to chemotherapy has an Achilles heel, a vulnerability that can be exploited to target and kill the very tumor cells it usually protects, researchers from the University of Illinois at Chicago show in a new study published in the Dec. 9 issue of Cancer Cell.

8 Dec 2008

Alternative splicing proteins prompt heart development

Just as the emotions it represents are dynamic, the heart's development requires dynamic shifts in proteins that prompt alternative spicing, a mechanism that allows a given gene to program the cell to make several proteins, said a group of researchers at Baylor College of Medicine in a report that appears online in the journal Proceedings of the National Academy of Sciences.

8 Dec 2008

Scientists identify 'border patrol agents' in the gut

Researchers at UT Southwestern Medical Center have shown in mice how and under what circumstances the gut activates its defensive mechanisms to prevent illness.

8 Dec 2008

Thiamine reverses early diabetic kidney disease

Researchers at the University of Warwick have discovered high doses of thiamine - vitamin B1 - can reverse the onset of early diabetic kidney disease.

8 Dec 2008

Glowing imaging compound allows detection of viable cancer cells in mice

Researchers have developed a new type of imaging compound that allows them to visualize viable breast cancer cells that have spread to the lungs in mice.

8 Dec 2008

New chemotherapy pill shows promise for stubborn lymphomas

A new chemotherapy pill is showing early success in treating people with stubborn lymphomas, according to scientists at the University of Rochester Medical Center. Doctors reported that the drug is halting disease in nearly half of the patients with chronic lymphocytic leukemia, and in patients with more aggressive lymphoma as well.

8 Dec 2008

Ultrasound helps prevent stroke in children with sickle cell disease

Screening with an ultrasound machine has proved highly successful in preventing stroke among children with sickle cell disease, by identifying children who are then preventively treated with blood transfusions.

8 Dec 2008

Discovery of six novel genetic variants associated with lipid levels

A new study presages a real aim of genetics: to look at whole populations to in order determine the significance of individual genetic variants for individual health.

8 Dec 2008

Discovery of 11 new gene sites that influence cholesterol or triglyceride levels

An international research team has identified 11 novel locations in the human genome where common variations appear to influence cholesterol or triglyceride levels, bringing the total number of lipid-associated genes to 30.

8 Dec 2008

Researchers identify key step in maturation pathway of telomerase

The Stowers Institute's Baumann Lab has discovered an important step in the maturation pathway of telomerase, the enzyme that replenishes the sequences that are lost at chromosome ends with every cell division.

8 Dec 2008

Hematopoietic stem cells found to reproduce more slowly than expected

Investigators from Massachusetts General Hospital (MGH) have found a subpopulation of hematopoietic stem cells, the source of all blood and immune system cells, that reproduce much more slowly than previously anticipated.

8 Dec 2008

Effects of stem cell source and patient age on stem cell transplantation outcomes

Two studies examining the effects of stem cell source and patient age on stem cell transplantation outcomes were explored at a press conference on Sunday, December 7 during the 50th Annual Meeting of the American Society of Hematology in San Francisco, CA.

8 Dec 2008

New approaches to prevent blood clots

The largest study ever to examine the preventive use of blood-thinning medication to help prevent deadly blood clots in patients with cancer undergoing chemotherapy presented December 7 during the 50th Annual Meeting of the American Society of Hematology in San Francisco, CA.

8 Dec 2008

Study links cone death in retinitis pigmentosa to metabolic problem

Rods and cones coexist peacefully in healthy retinas. Both types of cells occupy the same layer of tissue and send signals when they detect light, which is the first step in vision.

8 Dec 2008

Novel therapeutic approaches for various forms of thrombocytopenia

Four studies that highlight significant advances in treatment and survival outcomes for patients with various forms of thrombocytopenia, a group of bleeding disorders characterized by a low number of platelets in the blood, were presented December 6 during the 50th Annual Meeting of the American Society of Hematology in San Francisco, CA.

8 Dec 2008