IRP Discoveries

Little Fish in a Big Pond Reveal New Answers to Old Questions

Reblogged from The NICHD Connection.

Dr. Eric Horstick in the lab

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.

Cool Videos: Looking Inside Living Cells

Reblogged via the NIH Director's Blog.

ASCB Celldance 2016 — “Discovery Inside Living Cells in Multicellular Organisms” Roberto Weigert

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.

Find and Replace: DNA Editing Tool Shows Gene Therapy Promise

Reblogged from the NIH Director’s Blog.

This image represents an infection-fighting cell called a neutrophil. In this artist’s rendering, the DNA of a cell is being “edited” with a pen-like tool to help restore its ability to fight bacterial invaders.

For gene therapy research, the perennial challenge has been devising a reliable way to insert safely a working copy of a gene into relevant cells that can take over for a faulty one. But with the recent discovery of powerful gene editing tools, the landscape of opportunity is starting to change. Instead of threading the needle through the cell membrane with a bulky gene, researchers are starting to design ways to apply these tools in the nucleus—to edit out the disease-causing error in a gene and allow it to work correctly.

Simplifying HIV Treatment: A Surprising New Lead

Reblogged from the NIH Director's Blog.

CD4 cells in colon, SIV

The surprising results of an animal study are raising hopes for a far simpler treatment regimen for people infected with the AIDS-causing human immunodeficiency virus (HIV). Currently, HIV-infected individuals can live a near normal life span if, every day, they take a complex combination of drugs called antiretroviral therapy (ART). The bad news is if they stop ART, the small amounts of HIV that still lurk in their bodies can bounce back and infect key immune cells, called CD4 T cells, resulting in life-threatening suppression of their immune systems.

Morning Sickness Associated with Lower Miscarriage Risk

Reblog via the NIH Director's Blog.

Stock photo of a woman resting on her bed in her bedroom while appearing nauseous.

During the first trimester of pregnancy, many women experience what’s commonly known as “morning sickness.” As distressing as this nausea and vomiting can be, a team of NIH researchers has gathered some of the most convincing evidence to date that such symptoms may actually be a sign of something very positive: a lower risk of miscarriage.

Exercise Releases Brain-Healthy Protein

Reblogged from the NIH Director's Blog.

Five images of different exercise activities

We all know that exercise is important for a strong and healthy body. Less appreciated is that exercise seems also to be important for a strong and healthy mind, boosting memory and learning, while possibly delaying age-related cognitive decline. How is this so? Researchers have assembled a growing body of evidence that suggests skeletal muscle cells secrete proteins and other factors into the blood during exercise that have a regenerative effect on the brain.

Caffeine's Fine Line Between Cognition and Addiction

A1RP

Research suggests that two-thirds of U.S. adults drink two or more cups of coffee a day. There are multiple reasons for this, likely because coffee has multiple effects on the body. Consider the standard morning scenario for many people.