Wednesday, April 25, 2018
Ever since the Human Genome Project (HGP) launched in 1990, patients and members of the public have been inundated with predictions about how unraveling the mysteries of genetics will revolutionize healthcare. Today, many of these promises remain unrealized, prompting some to become skeptical of the true utility of this research for improving human health. But, while more work is needed to fully realize the potential of genome-focused medicine, it remains true that patients are benefiting from our knowledge of the human genome in numerous, sometimes under-appreciated ways.
Wednesday, March 7, 2018
Once confined to the realms of science fiction, virtual reality (VR) has crossed over into the real world in a wide array of fields, including scientific research and clinical medicine. In the IRP, several researchers are utilizing the cutting-edge technology in their efforts to improve human health.
Susan Persky, Ph.D., for instance, runs the Immersive Virtual Environment Test Unit, where she uses VR to simulate how genetic information might affect doctor-patient interactions and influence patients’ emotions, beliefs, and decisions. She has also put the technology to use studying the food choices of overweight and obese individuals by presenting them with a simulated buffet. Meanwhile, John Ostuni, Ph.D., explores how VR might help doctors diagnose or treat patients, such as by providing access to physical therapy without going to the hospital. And Victor Cid, M.S., creates virtual reality scenarios for the Disaster Information Management Research Center that can train emergency personnel how to more effectively respond to major crises.
On Friday, February 23, they joined several NIH colleagues for a Reddit “Ask Me Anything” (AMA) to answer questions from the public about how virtual reality might change the way medicine and research are practiced and ultimately make people’s lives better. Read on for some of the most interesting exchanges that took place or check out the full AMA on Reddit.
Tuesday, February 27, 2018
In one of Aesop’s classic fables, a clever wolf dons a sheep’s skin in order to move through the herd undetected. As it turns out, IRP researchers have discovered that in people with a specific set of immune system genes, the HIV virus uses a similar approach to hide from the body’s defenses.1
Nearly all cells in our bodies are coated with proteins called human leukocyte antigens (HLAs). These proteins allow the immune system to distinguish between healthy, native cells and those contaminated by unwelcome visitors like viruses or bacteria that must be destroyed. Each of the various HLA proteins is encoded by a different HLA gene and these genes vary considerably between individuals, causing different people to have different variants of each HLA protein.
“There are thousands of different forms of these HLA genes, and that variation allows us, as a species, to deal with virtually all infectious pathogens,” says IRP Senior Investigator Mary N. Carrington, Ph.D., the senior author of the new paper. “We’re really interested in the diversity of that part of the genome, since the risk of essentially every autoimmune disease, many cancers, and probably every infectious disease is associated with this set of genes.”
Tuesday, February 27, 2018
Between 25 and 30 million Americans have a rare disease, defined as a condition affecting fewer than 200,000 people. On March 1, the NIH will host its annual Rare Disease Day to increase awareness of these under-recognized and often undiagnosed illnesses and highlight the efforts of scientists, patients, and advocates to produce treatments.
In anticipation of the occasion, on February 23, NIH organized a Twitter chat with NIH Director Francis Collins, M.D., Ph.D., and Sharon Terry, President and CEO of Genetic Alliance and a member of the Research Program Advisory Panel for NIH’s All of US project. Check out some of the more noteworthy exchanges below or look at the full Twitter chat by searching for #NIHchat on Twitter.
Thursday, April 27, 2017
Studying the neural control of behavior is a challenge. Researchers must consider an animal’s environment, past experiences, and motivations. Work in relatively simple organisms, for example the invertebrate C. elegans, has teased apart the neural circuitry of highly stereotyped behaviors, like foraging. But in mammals, very little is known, “and that’s surprising given just how important behaviors like this are,” said Dr. Eric Horstick, who studies the molecular mechanisms underlying animal behavior.
Monday, February 27, 2017
Roberto Weigert is a cell biologist who specializes in intravital microscopy (IVM), an extremely high-resolution imaging tool that traces its origins to the 19th century. What’s unique about IVM is its phenomenal resolution can be used in living animals, allowing researchers to watch biological processes unfold in organs under real physiological conditions and in real time.
Monday, October 24, 2016
This year, members of the National Academy of Medicine elected four NIH Intramural researchers to their ranks, one of the highest honors in science. Learn a bit about each of their research and follow the links to their IRP profiles for more information.
Thursday, October 13, 2016
Dr. Hong Xu's team’s expertise in mitochondrial DNA genetics, along with a strong mitochondrial biology research group in the IRP, allowed them to solve the fundamental biological question of how organisms are able to stop the accumulation of mitochondrial DNA mutations from being passed on to future generations.
Tuesday, August 9, 2016
Scientists use a variety of laboratory techniques to investigate the genetic cause of human diseases. While mice and rats have been common choices for modeling human diseases in the past, the use of zebrafish is rapidly gaining popularity. Does this surprise you? Let me explain.
Tuesday, May 17, 2016
You may already know that diet, obesity, exposure to the sun, radiation, and hormones are just a few of the many risk factors associated with cancer diagnoses. But, do you know about other risk factors, especially those playing out through epigenetics, the molecular relationship between the environment and our DNA? Read more...