Clinical studies

Category archives for Clinical studies

Hunter_de_Rat Scientists funded by the People for the Ethical Treatment of Animals (PETA) organization are reportedly guiding Chinese officials towards their “very first non-animal test method for cosmetics ingredients.” Given that PETA is an organization not known for either ethics or science, I am deeply skeptical about whether this initiative, if true, would promote biomedical…

Ritalin’s Fallacy

Diffusion MRI Tractography in the brain white matter. Some drugs work well because they are designed to hit a single, well understood target. Consider penicillin. In a simplified sense, penicillin destroys a single enzyme that bacteria need to divide and to infect you, thereby killing the harmful bacteria. But what about psychiatric drugs? Is there…

Elderly Dogs on Viagra? Relax.

Photo source. Sometimes science can sound strange, at least until you understand its drive to understand nature at a deeper level. Mayo Clinic researchers wanted to test whether blocking a particular protein would be useful in treating heart failure, and ended up testing elderly dogs on viagra. Let me explain.

Your Brain On Music: Pure Joy

Figure 2: Evidence for dopamine release during pleasurable music listening. Listening to music invokes our emotions, ranging from pleasure to disdain. It is one of our most human experiences, sometimes so profound that words cannot convey the intensity. One of my closest friends, a professor of musicology, once asked me in a moment of self…

Fido, M.D.?

Photo by Bruteitup. A DOG or cat owner spends roughly $10,000 on the care and feeding of his pet over its lifetime. (Dogs cost more per year, but cats make up for it by living longer.) What does he get for this investment? Surveys indicate that what most pet owners mainly want is companionship, unconditional…

Fraudulent Vaccine-Autism Study Is News?

View full size Tanya Kovacs of Iselin holds her 20 month old son Caleb as they take part in a rally in front of the State House opposing new vaccine mandates by the state for children. TONY KURDZUK/THE STAR-LEDGER As reported by the Associated Press and in The New York Times this evening {“filed 7:50…

Live Longer, Walk Faster

Predicted Median Life Expectancy by Age and Gait Speed (Studenski, S. et al. JAMA 2011;305:50-58). Staying active, along with a balanced health diet, is probably the best way to age gracefully. An elegantly simple study was just published in the Journal of the American Medical Association that clearly demonstrates the relationship between longevity and walking…

Today’s announcement of a giveaway of 2,011 Nike shoes…well well! Give it a try! www.sharecare.com/static/nike giveaway If you are an Oprah fan, you already know that she will be launching a new network on New Year’s Day 2011. Oprah has recruited a “dream team” of go-to experts: Dr. Phil, Suze Orman and Dr. Oz —…

Adult human breast stem cells (red) are found in ductal regions. Lineage-restricted progenitor cell types (green) reside outside Scientists based at a medical center in Berlin have accomplished something extraordinary: they have used stem cells to prevent viruses to grow in a patient infected with HIV. This patient had been taking antiviral drugs but discontinued…