Body

The sudden death of bee colonies since late 2006 across North America has stumped scientists. But today, researchers may have a greater understanding of the mysterious colony collapse disorder, said a Texas Tech University biologist.

Shan Bilimoria, a professor and molecular virologist, said the bees may be taking a one-two punch from both an insect virus and a fungus, which may be causing bees to die off by the billions.

A new type of breast cancer treatment has shown encouraging activity as a first-line therapy in HER2-positive metastatic disease, researchers reported at the 35th Congress of the European Society for Medical Oncology (ESMO) in Milan, Italy.

Principal investigator Edith Perez, MD, Mayo Clinic in Florida, presented the results of the first ever randomized trial of trastuzumab-DM1 (T-DM1) as a first-line treatment for metastatic breast cancer.

Saranac Lake, N.Y. – A billion people living in underdeveloped areas around the world are infected with parasitic helminthes, worms that survive by residing in and feeding on their hosts. These infestations can cause chronic intestinal (and occasionally systemic) illnesses leading to long-term disability. Irah King and Markus Mohrs, biomedical researchers at the Trudeau Institute, are investigating illnesses caused by these gut-dwelling worms in an effort to decipher how immune cells send and receive signals that determine the specific immune response to mount.

Plants kick-start evolutionary drama of Earth's oxygenation

TEMPE, Az. - An international team of scientists, exploiting pioneering techniques at Arizona State University, has taken a significant step toward unlocking the secrets of oxygenation of the Earth's oceans and atmosphere.

The complication rate during pregnancy with twins is about 40%. Women with multiple pregnancies often develop pre-eclampsia, gestational diabetes, and hemorrhages during the term of their pregnancy. Joachim W Dudenhausen from the Charité Berlin University Medicine and Rolf F Maier from Magdeburg University Medical Center, investigate which risks can be minimized by close monitoring in multiple pregnancies (Dtsch Arztebl Int 2010; 107[38]: 663-8).

Shift work can cause cancer. In the new issue of the Deutsches Ärzteblatt International (Dtsch Arztebl Int 2010; 107[38]: 657-62), Thomas C. Erren and colleagues describe the current state of knowledge in this area and point out the challenges lying ahead.

Antwerp, Belgium – October 8, 2010– VIB researchers at the University of Antwerp have identified several mutations that play an important role in the development of Hereditary Sensory and Autonomous Neuropathy Type 1 (HSAN 1). HSAN 1 is a rare genetic disorder of the peripheral nervous system. Identification of the mutations will lead to a more accurate diagnosis of the disease in patients as well as improved genetic counseling and prenatal diagnostic tests for couples who are carriers and planning a pregnancy.

HSAN

The family Cobitidae is a group of small, bottom dwelling, primary freshwater fishes . They are widely distributed in Eurasia and Morocco, with the greatest diversity in southern Asia. However, known fossil cobitids are scarce, and only include a few species of Cobitis and a species of Sabanejewia. Most of the materials consist of either detached suborbital spines or poorly preserved skeletons with little information about the suborbital spines.

Chevy Chase, MD—Using novel technology allowing "virtual bone biopsies" researchers have found that a common treatment for prostate cancer called androgen deprivation therapy (ADT) is associated with structural decay of cortical and trabecular bone. The study has been accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

Chevy Chase, MD—The use of testosterone assays for patient care and research is on the rise as new research links testosterone to a variety of diseases and conditions. Although the assays are heavily used, discrepancies and inaccuracies in measurements resulting from the various assays are widespread.

DURHAM, N.C. -- The cost of obesity among U.S. full-time employees is estimated to be $73.1 billion, according to a new study by a Duke University obesity researcher, published today in the Journal of Occupational and Environmental Medicine.

This is the first study to quantify the total value of lost job productivity as a result of health problems, which it finds is more costly than medical expenditures.

Female fish flaunt fins to attract a mate

For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research, published in the open access journal BMC Evolutionary Biology, shows that male cichlid fish prefer females with a larger pelvic fin and that this drives females to grow fins out of proportion with their body size.

Women have to work harder than men in order to start sweating, while men are more effective sweaters during exercise, according to new research published in the journal Experimental Physiology.

3-way control of fetal heart-cell proliferation could help regenerate cardiac cells

PHILADELPHIA - Heart muscle cells do not normally replicate in adult tissue, but multiply with abandoned during development. This is why the loss of heart muscle after a heart attack is so dire—you can't grow enough new heart muscle to make up for the loss.