News

TTR gene mutation, unique to China, tied to eye condition, neuropathy

Gly103Arg, a mutation in the TTR gene that has been exclusively reported in Chinese people, is associated with a familial amyloid polyneuropathy-like profile marked by eye and neurological involvement, according to a case report and literature review study. All three patients from a single family carrying the mutation had…

Noninvasive eye test can help diagnose hATTR at early stage

People with hereditary transthyretin amyloidosis (hATTR), a group of diseases that includes familial amyloid polyneuropathy (FAP), have significantly shorter nerve fibers in their corneas, the eye’s outermost layer, relative to healthy people, a study showed. Shorter corneal nerve fibers could be detected using a noninvasive technique known as corneal…

Excess blood acid from kidney problem common in hATTR: Study

Nearly every fifth adult with hereditary transthyretin amyloidosis (hATTR), a group of conditions that includes familial amyloid polyneuropathy (FAP), has renal tubular acidosis (RTA) — a problem that occurs when the kidneys fail to remove acids from the blood into the urine. That’s according to a new study from…

2 proteins may be familial amyloid polyneuropathy biomarkers

People with familial amyloid polyneuropathy (FAP) and other forms of hereditary transthyretin amyloidosis (hATTR) have abnormal blood levels of two proteins, called growth differentiation factor-15 (GDF-15) and uromodulin (Umod), a small study reports. The preliminary findings from 16 patients in Italy suggest GDF-15 and Umod may serve as biomarkers of…

Combination therapy may be safe in FAP patients: Study

Combination therapy for hereditary transthyretin amyloidosis (hATTR), a group of conditions including familial amyloid polyneuropathy (FAP), appears to be safe, according to a retrospective study, but because its effects “on neurological symptoms could not be assessed,” more studies are needed to confirm its benefits, the researchers wrote. Most of…

Young adults at risk of FAP may need tailored healthcare support

Young adults at risk for familial amyloid polyneuropathy (FAP) face unique psychological and social challenges, and likely would benefit from tailored healthcare support when undergoing pre-symptomatic testing for the rare disease. That’s according to a new study by researchers in Portugal, who conducted interviews with more than a dozen…