Margarida Maia, PhD,  science writer—

For a woman with erythropoietic protoporphyria (EPP) in China, the first symptoms did not involve the skin, as is typical, but rather the liver, drawing doctors’ attention to an unusual presentation of the disease. “Timely identification of EPP not only facilitates appropriate management, but may also prevent irreversible hepatic…

A woman in her 20s was diagnosed with acute hepatic porphyria (AHP) after experiencing seizures and visual hallucinations due to a condition known as PRES, or unilateral posterior reversible encephalopathy syndrome — which causes swelling in one side of the brain — and muscle weakness due to neuropathy, or…

Heavy alcohol use and hepatitis C, a viral infection that can cause damage to the liver, may have triggered porphyria cutanea tarda, a common form of porphyria that manifests as painful lesions on sun-exposed skin areas, usually in late adulthood, in a 59-year-old man in Indianapolis. “The distinctive [skin]…

Patients are very satisfied with Givlaari (givosiran), the only approved treatment that targets the cause of acute hepatic porphyria (AHP) to help reduce attacks, according to a new study based on interviews with more than 20 people with AHP in the U.S. and Europe. Indeed, these AHP patients —…

Note: This story was updated Nov. 4, 2024, to correct that Givlaari was given via subcutaneous injections, not through infusions. Upper body pain and muscle weakness led to a misdiagnosis of Parsonage-Turner syndrome (PTS) for a woman in France who was later found to have acute…

An iron infusion for persistently low levels of hemoglobin, or the iron-containing protein that carries oxygen in red blood cells, triggered a sudden attack of erythropoietic protoporphyria (EPP) in a 28-year-old British man. Managing the disease required avoiding triggers as well as receiving ongoing care to prevent future flares…

Scenesse (afamelanotide) increases the time people with erythropoietic protoporphyria (EPP) or X-linked protoporphyria (XLP), two types of porphyria, can spend in the sun without pain, which may help improve their quality of life, a study has found. The study, “Afamelanotide for Treatment of the Protoporphyrias: Impact on…

A new artificial intelligence (AI) algorithm may help reduce the time it takes to diagnose acute hepatic porphyria (AHP) and other rare diseases. That’s according to a study reporting that models using the AI algorithm “could identify 71% of [AHP] cases earlier than their…

Oral iron supplements may help people with erythropoietic protoporphyria (EPP) build back their iron reserves and increase the levels of hemoglobin — the iron-containing protein that carries oxygen in red blood cells — a small study in Denmark suggests. However, even when taken at small doses over a short…

Certain triggers of acute intermittent porphyria (AIP) may also affect the function of the brain’s mitochondria — the bean-shaped structures that produce energy inside cells — according to a mouse study conducted by researchers in Argentina. While it is unknown whether this holds true in humans, understanding “the mechanisms…