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Insects hold atomic clues about the type of habitats in which...

Scientists have discovered that insects contain atomic clues as to the habitats in which they are most able to survive. The research has important implications for predicting the effects of climate change on the insects, which make up three-quar...

Opportunity leads to promiscuity among squirrels, study finds

University of Guelph researchers have finally figured out why female squirrels are so darn promiscuous. Turns out it has nothing to do with genes and everything to do with how many males are knocking at their door. "Their behaviour is overwhel...

Jellyfish counterattack in winter

A study carried out over 50 years by an international team, with the participation of the Balearic Oceanography Centre of the Spanish Institute of Oceanography (IEO) has confirmed an increase in the size and intensity of proliferations of the je...

Reproductive scientists create mice from 2 fathers

Using stem cell technology, reproductive scientists in Texas, led by Dr. Richard R. Berhringer at the M.D. Anderson Cancer Center, have produced male and female mice from two fathers. The study was posted today (Wednesday, December 8) at the on...

A chip off the early hominin tooth

Were our early mammalian ancestors vegetarians, vegans or omnivores? It's difficult for anthropologists to determine the diet of early mammalians because current fossil analysis provides too little information. But a new method that measures the...

Exposure to low doses of BPA alters gene expression in the...

A study posted today (Wednesday, August 25) at the online site of the journal Biology of Reproduction reports that exposure of pregnant female mice to the endocrine-disrupting chemical bisphenol A may produce adverse reproductive consequences on gen...

Pheromones in male perspiration reduce women's tension

Scientists have found that exposure to male perspiration has marked psychological and physiological effects on women: It can brighten women's moods, reducing tension and increasing relaxation, and also has a direct effect on the release of luteinizing hormone, which affects the length and timing of the menstrual cycle.

Cancer Researchers Develop New Anti-Leukemia Strategy

Cancer researchers in San Diego have developed a 3-step process in which human leukemia cells and neighboring immune-system T cells are manipulated together in the laboratory to create a powerful and specific cancer-killing cocktail. "For reasons that are not yet entirely clear, leukemia cells fail to trigger immune responses," said the study's senior author, Edward D. Ball, M.D., of the Rebecca and John Moores UCSD Cancer Center. "We have developed a method in which we induce the leukemia cell to change its behavior and stimulate the immune system. At the same time, we persuade the immune system to wake up and attack only the leukemia cells." The details of this approach, known as adoptive immunotherapy or cellular therapy, are reported in the October issue of the journal Biology of Blood and Marrow Transplantation.

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