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New Findings in Breast Cancer

By Guest PostApril 20, 2012Healthbreast cancer, breast cancer research, invasive tumors, treatment design, tumorigenic cells, tumorigenicity

Results from Berkeley Lab and University of Copenhagen Collaboration Contradict Current Views on Cancer Stem Cells

New findings in breast cancer research by an international team of scientists contradict the prevailing belief that only basal-like cells with stem cell qualities can form invasive tumors. Research led by Ole William Petersen at the University of Copenhagen (CU) and Mina Bissell of the Lawrence Berkeley National Laboratory (Berkeley Lab) and has shown that luminal-like cells with no detectable stem cell qualities can generate larger tumors than their basal-like counterparts. This may hold important implications for the diagnosis and the treatment of breast cancer as well as future personalized cancer medicine. (more…)

Global Health: Students Build Wiki of Medical Devices Designed for Low-Income Countries

By Guest PostApril 20, 2012Education, Scienceamir sabet, anemia, appropedia project, autologous blood transfusion, blood sample, caitlin winget, communication vehicle, database, diime, dynamic compendium, education, electricity, filtering syringe, ghana, hemafuse, humboldt state university, iran, james azazili, kathleen sienko, knowledge, lonny grafman, medical device, megan bland, new wiki, nicaragua, open source inventory, policymaker, project, rachel strauss, salad spinner centrifuge, sofia merajver, startup, Technology, turkey, university of michigan, wiki appropedia, world

ANN ARBOR, Mich.— In parts of the world without reliable electricity, a pedal-powered nebulizer could provide life-saving asthma treatments. Small wax-filled sleeping bags could keep premature infants warm. A salad spinner centrifuge for blood samples could help clinicians diagnose anemia.

University of Michigan researchers have cataloged more than 100 such technologies in a new wiki of medical devices designed for resource-limited settings. The Global Health Medical Device Compendium, an open-source inventory, is hosted by the popular appropriate technology wiki Appropedia. It is expected to serve as an important communication vehicle for end users, non-governmental organizations, researchers and others to help advance such technologies. (more…)

Photoreceptor Transplant Restores Vision in Mice

By Guest PostApril 19, 2012Scienceblindness, brain, central nervous system, cones, degenerate retina, degenerative eye diseases, degenerative eye disorders, diabetes, embryonic stem cells, institute of ophthalmology, macular degeneration, mice, photoreceptor transplantation, photoreceptors, rachael pearson, retinitis pigmentosa, rob buckle, robin ali, rods, stem cell therapies, transplanting photoreceptors, ucl, vision, visual information, visually impaired

Scientists from the UCL Institute of Ophthalmology have shown for the first time that transplanting light-sensitive photoreceptors into the eyes of visually impaired mice can restore their vision.

The research, published in Nature, suggests that transplanting photoreceptors – light-sensitive nerve cells that line the back of the eye – could form the basis of a new treatment to restore sight in people with degenerative eye diseases. (more…)

Microsoft Reports Record Third-Quarter Revenue

By Guest PostApril 19, 2012Technologyinvestor relations, microsoft business division, quarterly revenue, solid revenue growth, tax benefit, tax settlement

Strong business demand drives double-digit operating income growth.

REDMOND, Wash. — Apr. 19, 2012 — Microsoft Corp. today announced quarterly revenue of $17.41 billion for the quarter ended Mar. 31, 2012, a 6% increase from the prior year period. Operating income was $6.37 billion, up 12% from the prior year period. (more…)

Rebuilding a Heart, Saving a Life

By Guest PostApril 19, 2012Healthamerican patient, angela irizarry, birthday, blood vessel, blue babies, bone marrow, bridgeport, cardiac surgeon, christopher breuer, circulatory system, claudia irizarry, congenital heart defect, connecticut, fda, function, gary kopf, hypoplastic, infection, inflammatory response, left heart syndrome, mark saltzman, natural cell, operation, organ, oxygenated blood, polymer, synthetic grafts, synthetic nature, tissue engineered, toshi shinoka, united states, yale doctor, young girl

A young girl in Bridgeport, Connecticut, born with one of the most serious, life-threatening congenital heart defects known, is on her way to living a normal life thanks to Yale doctors who developed and performed the first operation of its kind in the United States.

Angela Irizarry was the first American patient to receive a tissue-engineered blood vessel made of her own natural cells. (more…)

Cosmic Ray Mystery

By Guest PostApril 19, 2012Scienceactive galaxies, Antarctica, array of detector, australia, bakhtiyar ruzybayev, barbados, belgium, black hole, canada, charged particle, chris elliott, cosmic ray, cosmic ray protons, data, density of radiation, detector, earth, energy, fermi satellites, fireballs, francis halzen, gamma ray bursts, Germany, ghostly nature, glacial ice, grbs, greg sullivan, icecube, icetop, james roth, Japan, katie shirey, NASA, national science foundation, neutrinos, new zealand, nsf, production, proton, pyramid of giza, south pole, Sweden, swift, switzerland, telescope, thomas gaisser, universe, university of delaware, university of wisconsin, US

Massive detector homes in on cosmic ray production

IceCube, an international collaboration involving University of Delaware scientists, is shedding new light on cosmic ray production.

Although cosmic rays were discovered 100 years ago, their origin remains one of the most enduring mysteries in physics. Now, the IceCube Neutrino Observatory, a massive detector in Antarctica, is homing in on how the highest energy cosmic rays are produced. (more…)

Belief in God Rises with Age, Even in Atheist Nations

By Guest PostApril 19, 2012Culture, Generalamerican, atheism, austria, belief in god, catholic societies, east germany, existence, god exists, international survey, Israel, mortality, nation, norc, organization, people, Philippines, poland, protestant population, russia, Scandinavia, slovenia, soviet states, tom w smith, united states, william harms

International surveys about the depth of people’s belief in God reveal vast differences among nations, ranging from 94 percent of people in the Philippines who said they always believed in God, compared to only 13 percent of people in the former East Germany. Yet the surveys found one constant—belief in God is higher among older people, regardless of where they live.

A new report on the international surveys, “Belief About God Across Time and Countries,” was issued by the General Social Survey of the social science research organization NORC at the University of Chicago. It is based on a comprehensive, international study of belief in God and includes information from the International Social Survey Program, a consortium of the world’s leading opinion survey organizations. Tom W. Smith, director of the General Social Survey, wrote the report. (more…)

Low Quality Genes May Cause Mutational Meltdown

By Guest PostApril 19, 2012Healthgenetic deficiencies, harmful mutations, inferior chromosomes, low quality genes, mutation rate, second chromosome

Deficiencies compound over time, researchers say

Evolutionary biologists at the University of Toronto have found that individuals with low-quality genes may produce offspring with even more inferior chromosomes, possibly leading to the extinction of certain species over generations. (more…)

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