Test Tube Tuesday

Preventing Cellular Rust Hinders Tuberculosis

Study Suggests New Treatment Approach for Deadly Lung Infection

tuberculosis bacteria

Oxygen is, quite literally, the air we breathe (or, more accurately, 21 percent of it). However, just as oxygen in the air can turn a handy garden tool into a useless hunk of rust, certain unstable, oxygen-containing molecules in our bodies can wreak havoc on our cells. According to new IRP research, revving up cellular systems that prevent this kind of damage could significantly improve outcomes for people with tuberculosis.

Moms’ Caffeine Consumption May Affect Babies’ Brains

Findings Could Explain Why Caffeine Exposure In-Utero Increases Kids’ Risk for Obesity

steaming cup of coffee

Between books, the media, and well-meaning friends and relatives, new parents are inundated with advice about how to set their kids up for a happy and healthy future. However, what parents do before their children are even born can also have a huge impact on how they turn out. For instance, new IRP research suggests that a pregnant woman’s caffeine consumption can rewire her baby’s brain in ways that put the child at increased risk for obesity later in life.

Toxic Protein and Aging Combine Forces to Drive Brain Disease

IRP Study Suggests New Therapeutic Targets for Pair of Age-Related Illnesses

older man

Aging wears down all parts of our bodies, from our bones to our brains. It’s no surprise, then, that it’s the main risk factor for neurological illnesses like Parkinson’s disease and dementia. However, the precise reason why has long remained a mystery. New IRP research suggests that the aged brain is a fertile ground for the spread of a harmful protein associated with several neurological diseases, and that the toxic protein itself ages immune cells in the brain.

Boosting Brain Activity to Suppress Snacking

Non-Invasive Stimulation Method May Improve Self-Regulation Around Food

a box of donuts

Marketers make a living from the fact that merely seeing an advertisement for junk food can spur a sudden craving for potato chips or sugary cereal. Some people have an easier time than others resisting such urges, and over-consuming that sort of food can have problematic consequences for health. Findings from a recent IRP study suggest that stimulating a particular part of the brain might help people who struggle with obesity by enhancing their ability to control their desire to snack.

Modified Soybeans May Provide Cardiovascular Benefits

Mouse Study Suggests Simple Ingredient Swap Could Improve Public Health

soybeans

When it comes to consuming a healthy diet, “everything in moderation” is a common piece of advice. In fact, evidence is accumulating that eating lots of a particular dietary fat thought to promote cardiovascular health may actually be problematic. A recent IRP study performed in mice suggests that vegetable oil made from a modified soybean may decrease the risk for cardiovascular disease by helping people strike the right balance in their consumption of two different types of fat.

Overzealous Immune Cells Hamper Healing

Study Points to Treatment Targets for Impaired Healing Due to Diabetes

patient having his foot examined

Whether we’ve nicked a finger while chopping vegetables or wiped out riding a skateboard, we tend to take for granted that our injuries will eventually mend themselves. However, for a type of wound that often plagues patients with diabetes, healing is no sure thing. IRP researchers recently identified why certain immune cells shift from helpful healers into saboteurs in those injuries.

Neuroimaging Study Supports Two-Stage Theory of Recall

Results Suggest Dual Functions for Memory-Related Brain Area

photos spread out on bedspread

Scientists studying memory have been closely scrutinizing a brain structure called the hippocampus ever since a man named Henry Molaison — better known as ‘patient H.M.’ — lost his ability to create new memories after surgeons removed that portion of his brain as a last-ditch treatment for his unrelenting epileptic seizures. For the most part, that research has treated the hippocampus as one homogenous structure. However, a recent IRP study lends support to the growing recognition that recall is a multi-stage process in which different parts of the hippocampus play different roles.

Mosquitos With Human Gene Hinder Malaria Transmission

Genetically Modified Insects Could Help Curb Infections

transgenic mosquitos with blue, red, and green eyes

“Scientists create genetically modified mosquitos” sounds like the plot of a bad sci-fi movie, but it’s actually the reality in labs all around the world. Researchers are producing these ‘transgenic’ mosquitos in the hopes that the bugs could help combat the scourge of malaria, and in a recent study, IRP scientists demonstrated that their unique strategy in this realm has strong potential to accomplish that goal.

African Ancestry May Influence Immune Response to Prostate Cancer

IRP Study Could Help Explain Racial Disparities in Disease Outcomes

black man getting blood drawn by nurses

Even as advances in therapy are extending the lives of many cancer patients, there are still stark differences in how likely patients of different races and ethnicities are to die from the disease. A recent IRP study suggests that a weaker immune response against cancer could explain the worse clinical outcomes for Black men with prostate cancer, pointing to potential strategies that could help close this gap.

Mining Medical Data to Improve COVID-19 Treatment

Study Reveals Medications Associated With Lower Odds of Severe Infection

doctor typing on laptop

Many researchers studying COVID-19 have spent the past two years poring over test tubes and isolated cells. However, large troves of data about people’s interactions with the healthcare system can also be a rich source of useful insights. Using one such database, IRP researchers found that older adults taking certain medications were less likely to catch COVID or experience severe repercussions from the virus.