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Johns Hopkins Medicine


Popular HIV drug may cause memory declines

A Johns Hopkins research suggests that the commonly prescribed anti-retroviral drug efavirenz attacks brain cells, contributing to cognitive impairment. The study found that 8-hydroxyefavirenz is 10 times more toxic to brain cells than the drug itself.

SourceJohns Hopkins Medicine·JournalJournal of Pharmacology and Experimental Therapeutics·DateSep 27, 2012

How bees decide what to be

Researchers found 155 regions of DNA with different tag patterns in bees, which were mostly regulatory genes known to affect other genes. The epigenetic marks were reversible and connected to the bees' behavior, with more than half of those regions already identified among the original 155 regions.

SourceJohns Hopkins Medicine·JournalNature Neuroscience·DateSep 16, 2012

Improved nanoparticles deliver drugs into brain

Researchers at Johns Hopkins Medicine have designed nanoparticles that can safely and predictably infiltrate deep into the brain, delivering chemotherapy drugs to treat brain cancer. The breakthrough allows for controlled release of medication over time, reducing dosage challenges and improving treatment outcomes.

SourceJohns Hopkins Medicine·JournalScience Translational Medicine·DateSep 11, 2012

How breast cancer spreads

Breast cancer cells spread to surrounding lymph nodes through invasion into lymph vessels. Johns Hopkins researchers discover protein HIF-1 triggers this process by stimulating the growth of new blood vessels and activating genes involved in lymph vessel formation.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Experts say ethical dilemmas contribute to 'critical weaknesses' in FDA postmarket oversight

A commentary by former Institute of Medicine committee members highlights the need for increased postmarket oversight and an independent ethics advisory board to address ethical challenges in drug safety. The authors emphasize the responsibility of the FDA to research participants and the importance of clear informed consent processes.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateAug 22, 2012

Children allergic to eggs can benefit from 'egg therapy'

A federally funded study found that oral immunotherapy can retrain the immune system to tolerate eggs in children with egg allergies. In a 10-month study, 35 of 40 children treated with escalating doses of egg powder experienced improvement, with 11 achieving complete long-term elimination of egg-related allergic reactions.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateJul 18, 2012

Turning skin cells into brain cells

Scientists successfully converted skin cells from a patient with severe Huntington's disease into neurons that degenerate like those affected by the fatal disorder. This breakthrough enables researchers to test potential drug therapies on human brain cells in a dish.

SourceJohns Hopkins Medicine·JournalCell Stem Cell·DateJun 28, 2012

Lessons learned from the 'ethical odyssey' of an HIV trial

The HIV Prevention Trials Network (HPTN) 052 study faced significant ethical challenges as it investigated the use of antiretroviral treatment to prevent sexual transmission of HIV. The trial's findings provide valuable insights into managing ethical difficulties in research, while also shedding light on the importance of balancing sci...

SourceJohns Hopkins Medicine·JournalClinical Trials·DateJun 14, 2012