teeth

A Summer of Science

Summer Poster Days Showcase IRP Summer Intern Research

IRP summer intern Thomas Savage

Every summer, NIH welcomes hundreds of enthusiastic young men and women to its campuses to work as summer interns, providing them with scientific training and mentorship from some of the world’s preeminent researchers. As always, the Summer Internship Program culminated this year with Summer Poster Days, held on August 1 and 2, a bustling event where summer interns showcase the results of their immersion into IRP research. Nearly 800 IRP summer interns participated in this year’s event, presenting research on cancer vaccines, new applications for virtual reality technology, experimental antifungal treatments, how the brain perceives pitch in sounds, and much more. Read on for a glimpse at some of this year’s summer interns and the work they braved a blazing Washington, D.C., summer to pursue.

IRP’s Jennifer Webster-Cyriaque Elected to the National Academy of Medicine

NIH Scientist Proves What Happens in the Mouth Doesn’t Stay in the Mouth

Dr. Jennifer Webster-Cyriaque

For many people, good oral health means a pretty smile, not necessarily a healthy body. However, poor dental health can lead to serious illness and disability. IRP senior investigator Jennifer Webster-Cyriaque, D.D.S., Ph.D., has spent her career illuminating the connection between our mouths and our overall health. Dr. Webster-Cyriaque, who recently joined NIH as Deputy Director of the National Institute of Dental and Craniofacial Research (NIDCR) and Chief of the Viral Oral Infections in Immunosuppression and Cancer Laboratory at the National Institute of Allergy and Infectious Diseases (NIAID), was elected to the National Academy of Medicine in October for her seminal contributions to our understanding of viruses that infect the mouth.

Enzyme Therapy Helps Rebuild Teeth

Study in Mice Suggests a New Approach to Treating Periodontal Disease

dental xray showing damage to teeth

Our teeth are extremely tough, but neglectful oral hygiene practices and certain genetic disorders can still massively damage them. If this deterioration becomes bad enough, teeth can be permanently lost. In a recent study, IRP researchers identified a promising new strategy for helping the body regenerate a part of the tooth that is particularly difficult to repair.

Mouth Microbes Turn Treasonous in Gum Disease

Four Questions with Dr. Niki Moutsopoulos

bacteria

Our mouths are teeming with bacteria, a microbial ecosystem known as the oral microbiome. While these microbes are typically benign, under certain circumstances they can turn harmful and contribute to oral diseases such as periodontitis, a form of chronic gum disease characterized by microbe-driven inflammation of the soft tissues and bone that support our teeth. According to the Centers for Disease Control and Prevention (CDC), roughly 65 million Americans aged 30 or older have some degree of periodontitis. In its early stage, known as gingivitis, the gums become swollen and red due to inflammation, which is the body’s natural response to the presence of bacteria. If the condition worsens, it can lead to loose teeth and, eventually, bone or tooth loss.

NIH senior investigator Niki Moutsopoulos, Ph.D., head of the Oral Immunity and Inflammation Section at the National Institute of Dental and Craniofacial Research (NIDCR), studies periodontitis and aims to understand the immune system’s role in driving this destruction. In a 2018 study, she and her team of IRP researchers and outside collaborators discovered that an abnormal and unhealthy population of microbes in the mouth causes specialized immune cells, known as T helper 17 (Th17) cells, to trigger inflammation and destroy tissue, leading to periodontitis.

Isaac Fights to Inspire Others

Reblogged from The Children's Inn at NIH.

Isaac was born to fight. Arriving more than five weeks early by emergency C-section, it wasn’t just his way of coming into the world that made him different from his three brothers. While he initially looked healthy, his parents soon realized Isaac’s health was something he and the entire family would need to be fighting for every single day.

Early Women Scientists of NIH, Part 2

Margaret Kelly, NCI NIH

Like many in the second wave of women scientists at the National Institutes of Health, Dr. Margaret Kelly began as a technician and got her PhD while she was working. Kelly focused on what caused cancer and what drugs could be used to fight it.

Dentistry Research During the Depression Lays Foundation for NIH's NIDCR

Francis Arnold and Philip Jay

“And he said, ‘I can assure you that if you go through and become a good dentist, people will travel all over the world to find you. Chemists travel all over the world to find a job.”

That was the advice for Dr. Francis Arnold, who did become a dentist and helped establish the National Institute of Dental and Craniofacial Research, from his mentor, Dr. Thomas Hill, Professor of Clinical Oral Pathology and Therapeutics at Western Reserve University. The excerpt, and those that follow, come from Dr. Arnold's 1964 NIH oral history series. During the interviews, he discusses how his experiments and interests led him to become one of the four Public Health Service scientists who pioneered the study of fluorides and their effect on teeth.