Tomato-rich diet may lower breast cancer risk
Eating tomatoes may help lower breast cancer risk in postmenopausal women, according to new study.
Researchers from Rutgers University recruited 70 postmenopausal women and analyzed the effects of a tomato-rich diet on breast cancer risk over a period of about five months. In the first half of the study, the women ate a tomato-rich diet; in the second half, they eliminated tomatoes from their diet.
The results of the study, published in the Journal of Clinical Endocrinology and Metabolism, showed that sticking to a tomato-rich diet led to a 9 percent increase in levels of adiponectin—a hormone which helps regulate levels of fat and prevent obesity. Switching to a diet that excluded tomatoes resulted in decreased levels of the hormone.
Researchers said their findings suggest that eating tomatoes may help lower breast cancer risk because previous evidence has shown that weight gain and obesity is linked to a higher risk of breast cancer. They attributed tomatoes’ cancer-fighting properties to the antioxidant lycopene. Other foods rich in lycopene include watermelon, grapefruit and asparagus.
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Sourced from: Medical News Today, A tomato-rich diet may reduce breast cancer risk, study shows
Birth of nuclear medicine: Dec. 24, 1936
Dr. John Lawrence, long interested in how radiation can be used in medicine, introduces a new approach to fighting cancer when he uses a radioactive isotope of phosphorus to treat a 28-year-old woman with leukemia.
Lawrence was part of a research team with his older brother, Ernest, at the Donner Laboratory at the University of California, Berkeley. A few years earlier, the elder Lawrence brother had invented the cyclotron, a particle accelerator that creates radioactive isotopes. Together, the brothers were leaders in research in nuclear radiation, both in how it harms the human body, but also how it could be used to treat and diagnose diseases.
Radioactive isotopes, for instance, were found to be effective in diagnosing and treating certain bone marrow and blood disorders. Radiation therapy didn’t prove that effective in treating cancer, but it opened a new field of medicine, one that has become known as radiology.
John Lawrence was so confident in his research that he would often begin his lectures by serving an audience member a radiosodium cocktail, then use a Geiger counter to show the movement of the isotope through the person’s bloodstream.
While his brother won the Nobel Prize for Physics in 1939 for his invention of the cyclotron, John Lawrence would ultimately become known as the “Father of Nuclear Medicine.” He died of a stroke in 1991.
Dogs in house protect against asthma, infection
Dogs may help build children’s immunity against certain allergies and asthma, according to a new study.
Researchers from the University of California-San Francisco (UCSF) and the University of Michigan exposed two groups of mice to allergens associated with asthma. The researchers then exposed one group of mice to dust from houses in which dogs lived and compared their immune systems’ responses to those of mice who were exposed to dust from homes without dogs.
The findings of the study, published in the journal Proceedings of the National Academy of Sciences, showed that the mice that were exposed to dust from homes with dogs experienced less inflammation in their lungs than did the control group.
Researchers said their findings do not provide evidence showing why humans raised with dogs have a reduced risk for infections, but that they could lead to new strategies for protection against infections and allergies spread through the airways.
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Sourced from: Medical News Today, Dogs in the house protect against asthma, infection
New discoveries could lead to hair regrowth
New research of hair generation may lead to new treatments for hair loss—which affects approximately 85 percent of men under the age of 50.
Researchers from the University of Southern California detailed the findings of three studies, published in the journals Stem Cells and The Proceedings of the National Academy of Sciences. The scientists discovered a series of genes that served as pathways by which hair growth cycles were controlled. They were able to pinpoint specific proteins that affect when hair grows, when hair stops growing and when it falls out.
They said that the findings have implications for cell regeneration when it comes to both the hair and also for skin, and could lead to therapies for people with baldness, severe burns or skin cancer.
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Sourced from: Medical News Today, New discoveries could lead to hair and skin regeneration
Researchers devise method to create insulin pill
People with diabetes may one day be able to substitute an insulin pill for daily insulin shots, according to new research.
In the study from India, a team of researchers aimed to resolve the challenges encountered in previous research of oral medications for diabetes—including the difficulty for the gut to absorb the insulin to help it reach the bloodstream. Scientists from the National Institute of Pharmaceutical Education and Research addressed this issue by creating insulin pills packaged in the fatty material found in cell membranes, then coating them in protective molecules and attaching them to folic acid. They tested the drug in diabetic rats and compared the results with rats receiving insulin shots.
The findings, published in the journal Biomacromolecules, revealed that the insulin pills were as effective as the shots were in reducing the rats’ blood sugar levels. The the effects of the pill, however, lasted longer. The scientists said further research in humans is needed to develop an oral treatment for diabetes.
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Sourced from: Medical News Today, Researchers develop new strategy for potential ‘insulin pill’