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Tag: "radiation" at biology news

Record ozone loss during 2006 over South Pole

...k its changes, enabling the rapid estimation of UV radiation as well as providing forecasting. The three atmosp...et Service) that provides operational ozone and UV radiation monitoring based on SCIAMACHY and GOME-1 data. The ozone-monitoring data provided by these instrumen...

Men with prostate cancer avoid radiation due to misconceptions

Negative perceptions about radiation therapy can strongly influence a prostate cancer patient's choice to avoid external beam radiation therapy, even though studies have proven the treatment to be as safe and effective as other treatmen...

T-ray breakthrough could make detecting disease far easier

... have found a way to control the flow of terahertz radiation down a metal wire. Their findings are set out in a...ctromagnetic spectrum. Materials interact with radiation at T-ray frequencies in different ways than with radiation in other parts of the spectrum, making T-...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...esponding author Dr. Cheng, associate professor of radiation oncology at the University of Pittsburgh School of Medicine and director of stem cell biology and co-leader of the cancer stem cell program at the University of Pittsburgh Cancer Institute. Previous attempts by scientists to produce animal clones di...

Gene key to taste bud development identified

...ction. Cancer patients receiving chemotherapy or radiation therapy often report the loss of taste during treatments. These therapies target cells that are dividing, making them effective in killing cancer cells but also causing the unwanted side effect of killing taste buds. When the cancer treatments end, t...

St. Jude announces breakthrough in eye cancer treatment

...ment. The complex treatment includes chemotherapy, radiation and laser therapy, as well as control of infection...lowed by one of several possible therapies such as radiation or lasers to destroy the remaining cancer cells in the eye. "When successful, this therapy often sav...

Dig deeper to find Martian life

...isted on Mars, cellular life could not survive the radiation levels for long enough any closer to the surface o...ysical Research Letters?(GRL), maps out the cosmic radiation levels at various depths, taking into account different surface conditions on Mars, and shows that t...

Common cold virus may kill breast cancer cells

...be an improvement on conventional chemotherapy and radiation treatment, which also impact on normal body cells. "In theory, the virus is able to selectively target and destroy many different types of cancer cells, including breast cancers, whilst leaving normal cells unaffected," she said. Debilitating symp...

Vitamin D deficiency widespread during pregnancy

...in more northern latitudes, where less ultraviolet radiation reaches the Earth. Indeed, vitamin D deficiency is more than three times as common in winter than in summer for all women of childbearing age in the United States. Even so, the Pittsburgh researchers' study is cause for concern. "This study is amo...

Chemicals in brown algae may protect against skin cancer

...s caused by ultraviolet B (UVB) radiation. UVB radiation in sunlight is thought responsible for 90 percent of the estimated 1.3 million cases of non-melanoma skin cancer diagnosed in the United States annually. Researchers applied the BAPs to the skin of hairless mice and fed it to the animals in their...

How fish conquered the ocean

...xtant marine teleosts that showed an unprecedented radiation during the late Cretaceous and early Paleogene Per...of marine sediments. The basis for this successful radiation is unexplained and has intrigued biologists for many years", says Dr. Finn and adds, "Our paper in P...

Satellites shed light on global warming

...lting of sea-ice will increase the amount of solar radiation that will be absorbed by ice-free polar oceans rather than reflected by ice-covered oceans, increasing the ocean temperature. Average temperatures in the Antarctic Peninsula have risen over the last 50 years by half a degree Celsius a decade and a...

Adding radiation decreases breast cancer recurrence

... increased up to 3.5 times if they did not receive radiation after their surgery. Great strides have been mad...o women who received breast conserving surgery and radiation or mastectomy alone. The risk was highest for local and regional recurrence. These results held rega...

Using dental X-rays to detect osteoporosis

...atients at risk for osteoporosis involves no extra radiation and almost no extra cost, while undetected osteoporotic patients can incur bone fractures and suffer from other problems, reducing the quality of life. By analyzing a small area depicting the trabecular bone on the ordinary dental radiographs, den...

Cancer that colonizes our bodies

...d Engineering Research Council (NSERC) work on how radiation can kill cells, how the DNA molecule itself can co...aboratory in 1953, where he studied the effects of radiation on insects, and described the mechanisms by which control of insect pests by X-irradiation is achiev...

New bird, bat species revealed by extensive DNA barcode studies

...d Engineering Research Council (NSERC) work on how radiation can kill cells, how the DNA molecule itself can co...aboratory in 1953, where he studied the effects of radiation on insects, and described the mechanisms by which control of insect pests by X-irradiation is achiev...

Researchers uncover protection mechanism of radiation-resistant bacterium

...durans protects itself from high doses of ionizing radiation (IR). The results of the recent study, titled "Pro... protect cancer patients from the toxic effects of radiation therapy; and may prove significant in efforts to contain toxic runoff from radioactive Cold War wast...

Cancer researchers add spice to research against rare neuromuscular disease

...lzheimer's disease and the blisters that come with radiation treatments for cancer. Chang notes that ginger, a family of spices that includes curcumin, is widely used in China as a folk medicine to treat male-pattern baldness. That condition is caused largely by the activity of the androgen receptor, the pr...

HIV protein enlisted to help kill cancer cells

...ptotic proteins such as TAT-Bim with chemotherapy, radiation therapy and other anticancer therapeutics in hopes of further increasing cell-suicide signals within cancer cells....

Dual gene therapy suppresses lung cancer in preclinical test

...also combine different modes of therapy - surgery, radiation and chemotherapy. Now you've got the possibility of combined targeted gene therapy," said Jack Roth, M.D., professor and chair of the M. D. Anderson Department of Thoracic and Cardiovascular Surgery and a senior researcher on the project. The gen...

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