Obesity in Adolescents

Calcific aortic stenosis affects approximately 12% of people >75 years in the US and worldwide leads to more than 100 000 deaths each year. Catherine M. Otto, MD, PhD, of the University of Washington School of Medicine, Seattle, discusses the symptoms, diagnosis, and treatment of aortic stenosis with JAMA Deputy Editor Kristin L. Walter, MD, MS. Related Content: Calcific Aortic Stenosis

CAR T cells are genetically engineered to express a receptor that recognizes and kills tumor cells. CAR T-cell products are now FDA approved for 6 hematologic malignancies. Author Jennifer N. Brudno, MD, National Cancer Institute, joins JAMA Deputy Editor Mary McGrae McDermott, MD, to discuss "CAR T Cells and T-Cell Therapies for Cancer: A Translational Science Review.” Related Content: CAR T Cells and T-Cell Therapies for Cancer Translational Science Reviews—A New JAMA Review

Peptic ulcer disease affects approximately 1% of the population in the US, and H pylori is a common cause of peptic ulcer disease. Author Nimish Vakil, MD, a gastroenterologist from the University of Wisconsin, Madison, discusses current evidence regarding diagnosis and treatment of peptic ulcer disease with JAMA Deputy Editor Mary McGrae McDermott, MD. Related Content: Peptic Ulcer Disease

High prescription costs are a major barrier to the optimal treatment of many health conditions. Prescribers need tools to help patients find the lowest drug costs. Author Hussain S. Lalani, MD, MPH, MSc, of Brigham and Women's Hospital and Harvard Medical School joins JAMA Senior Editor Anne R. Cappola, MD, ScM, to discuss "Strategies to Help Patients Navigate High Prescription Drug Costs." Related Content: Strategies to Help Patients Navigate High Prescription Drug Costs Strategies to Help Patients Afford Their Medicines in the US

Even though highly effective medications are currently available to prevent HIV, there are about 1.3 million new infections worldwide each year. Monica Gandhi, MD, MPH, of the University of California San Francisco joins JAMA Senior Editor Karen E. Lasser, MD, MPH, to discuss preexposure prophylaxis (PrEP) for HIV. Related Content: Preexposure Prophylaxis (PrEP) for HIV What Is Doxycycline Postexposure Prophylaxis?

In July 2023, the US Food and Drug Administration (FDA) approved Opill, a daily progestin-only oral contraceptive for over-the-counter sale to people of all ages. Daniel Grossman, MD, discusses this and more with JAMA Associate Editor Melissa A. Simon, MD, MPH. Related Content: Over-the-Counter Oral Contraceptives Over-the-Counter Oral Contraceptive Pills Over-the-Counter Progestin-Only Oral Contraceptives

Selection of hemodialysis or peritoneal dialysis and timing of dialysis initiation are influenced by patient symptoms, laboratory trajectories, patient preferences, and therapy cost and availability; shared decision-making is key. Jennifer E. Flythe, MD, MPH, from the University of North Carolina, discusses dialysis for chronic kidney failure with JAMA Deputy Editor Kristin L. Walter, MD, MS. Related Content: Dialysis for Chronic Kidney Failure

Chronic spontaneous urticaria affects approximately 1% of the general population worldwide, impairs patients’ quality of life, and is associated with multiple comorbidities. Pavel Kolkhir, MD, discusses the current evidence on the epidemiology, pathophysiology, diagnosis, and treatment of chronic spontaneous urticaria with JAMA Senior Editor Karen E. Lasser, MD, MPH. Related Content: Chronic Spontaneous Urticaria

Community-acquired pneumonia is associated with approximately 740 000 hospitalizations and 41 000 deaths in the US annually. JAMA Review authors Scott A. Flanders, MD, and Valerie M. Vaughn, MD, MSc, discuss diagnosis and treatment of community-acquired pneumonia with JAMA Deputy Editor Mary McGrae McDermott, MD. Related Content: Community-Acquired Pneumonia

Infestations by ectoparasites such as scabies, bedbugs, and body lice are common. Diagnosis requires history, including social drivers of health such as living environment, and physical examination. Author Aileen Y. Chang, MD, of UCSF, joins JAMA Senior Editor Karen Lasser, MD, to discuss Scabies, Bedbug, and Body Lice Infestations: A Narrative Review. Related Content: Scabies, Bedbug, and Body Lice Infestations