JAMA Network

JAMA Network

6/10/2025, 8:52:44 PM

Can microplastics reach the olfactory bulb in the brain 🧠? A JAMA Network Open case series found microplastics in olfactory bulb tissue from 15 deceased individuals. ➡️ Watch the video and learn more: https://ja.ma/3Hm8ikl

JAMA Network

6/9/2025, 8:46:48 PM

A pacemaker is a small, implantable electronic device that helps regulate the heartbeat. Pacemakers are commonly used for people who have a heart rate that is too slow or who have disorders that interfere with the heart’s normal electrical pathways. A pacemaker prevents slow heart rates that may cause shortness of breath, fatigue, lightheadedness, or even sudden death. ➡️ Learn more about the role of electronic pacemaker devices in maintaining heart rhythm for patients with certain conditions in this JAMA Patient Page: ja.ma/4dUpg5n

JAMA Network

5/20/2025, 8:12:45 PM

Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. Congenital syphilis occurs when a syphilis infection passes from mother to fetus during pregnancy. Congenital syphilis is associated with premature birth, low birth weight, stillbirth, and infant death. Infants born with congenital syphilis may have deformed bones, anemia, enlarged liver and spleen, jaundice, and inflammation around the brain and spinal cord (meningitis) that may cause permanent vision or hearing loss. ➡️ Learn more about syphilis infection, risks of congenital syphilis during pregnancy, and pros and cons of screening for syphilis during pregnancy in this JAMA Patient Page: ja.ma/3SdvMdy

JAMA Network

5/30/2025, 5:06:47 AM

Uveitis is characterized by inflammation of the uvea—the middle portion of the eye composed of the iris, ciliary body, and choroid—causing eye redness, pain, photophobia, floaters, and blurred vision. Adults aged 20 to 50 years are primarily affected by uveitis, and untreated uveitis may cause cataracts, glaucoma, macular edema, retinal detachment, optic nerve damage, and vision loss. ➡️ Learn more about the epidemiology, pathophysiology, diagnosis, and treatment of uveitis in adults in this JAMA Review: ja.ma/43DgrIe

JAMA Network

5/19/2025, 9:02:04 PM

Long-term studies and advanced imaging tools have deepened our understanding of how COPD presents in different patients. A JAMA study examines a multidimensional diagnostic approach for COPD that uses a new diagnostic schema for more individualized and inclusive COPD patient care. #ATS2025 https://ja.ma/3GYcUg1

JAMA Network

5/21/2025, 8:32:59 PM

Immune thrombotic thrombocytopenic purpura (iTTP) is a life-threatening thrombotic microangiopathy that presents with microangiopathic hemolytic anemia (MAHA) and thrombocytopenia. Worldwide annual incidence of iTTP is 2 cases per million to 6 cases per million. Common presenting features of iTTP include neurologic symptoms, abdominal pain or nausea, and fever. ➡️ Learn more about the pathophysiology, epidemiology, diagnosis, and treatment of iTTP in this JAMA review: https://ja.ma/4kpRneB

JAMA Network

5/24/2025, 12:38:24 AM

What will happen if childhood vaccination rates continue to decline in the US? A modeling study investigates potential long-term effects of declining or ceasing routine childhood vaccination for measles, rubella, diphtheria, and poliomyelitis. ➡️ Read the full JAMA study: https://ja.ma/3SWwa05

JAMA Network

5/12/2025, 8:50:49 PM

Growing evidence suggests that microbes located within the gastrointestinal tract and other anatomical locations influence the development and progression of diseases. Microbes indirectly affect human health and disease by influencing immunity, metabolism, and mucosal barrier maintenance. Variations in the microbiome, inside and outside of the gut, have been linked to response to cancer treatment, treatment-related adverse effects, and long-term outcomes in patients with cancer. ➡️ Learn more about the current evidence regarding the human microbiome and cancer in this JAMA Review: ja.ma/3YDdMgf

JAMA Network

6/1/2025, 5:50:12 PM

Hantaviruses are a group of viruses that spread to humans through exposure to rodents. People typically develop hantavirus infection from exposure to the infected urine, saliva, or droppings of rodents, usually rats and mice. In the western hemisphere (including the US), hantavirus can cause hantavirus pulmonary syndrome. Patients initially have flu-like symptoms including fever, chills, fatigue, muscle aches, and headache. Primarily in Europe and Asia, hantavirus can lead to hemorrhagic fever with renal syndrome. ➡️ Learn more about the hantavirus infection and the syndromes it can cause, as well as treatment options and prevention measures, in this JAMA Patient Page: ja.ma/3Hlh41W

JAMA Network

6/1/2025, 5:31:40 AM

Long COVID happens when a child continues to have symptoms lasting at least 3 months after a SARS-CoV-2 infection. Some children have COVID-19 symptoms that do not go away, while others might feel better but later develop new symptoms. Sometimes, symptoms can come and go. Long COVID can affect any child, even if they had mild or no symptoms when they had COVID-19. ➡️ Learn more about the symptoms of long COVID in children in this JAMA Pediatrics Patient Page: ja.ma/3ZaGtS0