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New Biochip Holds Great Promise for Quickly Triaging People after Radiation Exposure

By Guest PostSeptember 1, 2013Health, Scienceandy wyrobek, antibodies, antoine snijders, berkeley lab scientists, bio detection, biochip, blood assay, blood proteins, brandon mannion, chromosomal change, dangerous level, dicentric chromosome assay, ionizing radiation, magnetic nanoparticles, magneto nanosensors, magnetoresistive sensors, matt coleman, measure radiation exposure, physical symptoms, radiation exposure, radiation sensitive, sandhya bhatnagar, shan wang, stanford university, target molecules, Technology

Berkeley Lab scientists have helped to develop a tiny chip that has big potential for quickly determining whether someone has been exposed to dangerous levels of ionizing radiation.

The first-of-its-kind chip has an array of nanosensors that measure the concentrations of proteins that change after radiation exposure.

Although still under development, the technology could lead to a hand-held device that “lights up” if a person needs medical attention in the aftermath of an incident involving radiation. Initial tests on mice found that the technology only requires a drop of blood, measures radiation dose in minutes, and yields results up to seven days after exposure. (more…)

New Insights into How Genetic Differences among Individuals Influence Breast Cancer Risk from Low-Dose Radiation

By Guest PostOctober 17, 2012Health, Scienceandy wyrobek, antoine snijders, berkeley lab, breast cancer, cancer risk, cellular, cellular proliferation, chemical therapy, ct scan, department, dna repair, energy, gene, genetic makeup, gland cancer, immune response, ionizing radiation, joe gray, low dose, mammary tissue, mechanism, mice, non radiation, radiotherapy, resistance, risk, scientist, strain, survival outcome, therapy, tissue mechanism, tissue stress, woman

Berkeley Lab research could lead to new ways to ID women who have higher risk of breast cancer from low-dose radiation

Scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have identified tissue mechanisms that may influence a woman’s susceptibility or resistance to breast cancer after exposure to low-dose ionizing radiation, such as the levels used in full-body CT scans and radiotherapy.

The research could lead to new ways to identify women who have higher or lower risks of breast cancer from low-dose radiation. Such a predictive tool could help guide the treatment of cancer patients who may be better served by non-radiation therapies. (more…)

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New Biochip Holds Great Promise for Quickly Triaging People after Radiation Exposure

New Insights into How Genetic Differences among Individuals Influence Breast Cancer Risk from Low-Dose Radiation