Marta Figueiredo, PhD, science writer —

Marta holds a biology degree, a master’s in evolutionary and developmental biology, and a PhD in biomedical sciences from the University of Lisbon, Portugal. She was awarded a research scholarship and a PhD scholarship, and her research focused on the role of several signaling pathways in thymus and parathyroid glands embryonic development. She also previously worked as an assistant professor of an annual one-week embryology course at the University of Lisbon’s Faculty of Medicine.

Articles by Marta Figueiredo

Rare POLR3B Mutation Again Linked to Early-onset CMT Type 1

In rare cases, de novo or non-inherited mutations in one copy of the POLR3B gene can cause an early-onset demyelinating form of Charcot-Marie-Tooth disease (CMT), according to a study from Japan involving more than 800 CMT patients. While mutations in both POLR3B gene copies have been shown to cause a rare neurodevelopmental…

Orthopedic Shoes Can Improve Walking, But Not Stability, in Patients

Compared to regular footwear, customized orthopedic shoes significantly improve walking, including speed, in adults with Charcot-Marie-Tooth (CMT) disease, according to a small study in the Netherlands. However, no significant differences in postural stability while standing or walking were noted when patients wore orthopedic versus standard shoes. While orthopedic…

Managing Depression, Fatigue May Boost Quality of Life

People with Charcot-Marie-Tooth disease type 1A (CMT1A) have reduced quality of life, particularly in physical domains, a study from Serbia shows. Disease severity, depression, and fatigue are the main predictors of worse quality of life in this patient population. Given that there is still no treatment for this disease, managing…

Walking Test Can Assess Aerobic Capacity of CMT1A Patients

People with Charcot-Marie-Tooth disease type 1A (CMT1A) show a poorer performance in cardiopulmonary exercise testing using a stationary bicycle relative to healthy individuals, a study shows. Cardiopulmonary exercise testing (CPET) is a non-invasive assessment of the cardiopulmonary system at rest and during exercise. Notably, this poorer performance appeared to be…

CMTA Hosting 20th Patient/Family Conference Online on Nov. 6

The Charcot-Marie-Tooth Association (CMTA) will hold its 20th annual Patient/Family Conference — designed to empower and connect the Charcot-Marie-Tooth community and share the latest scientific breakthroughs and resources in managing the disease — virtually on Nov. 6. This marks the second year in a row that the conference will…

Certain NEFH Mutations Linked to Atypical Form of CMT

Mutations in a particular region of the neurofilament heavy chain or NEFH gene cause an atypical, more severe form of Charcot-Marie-Tooth disease, called type 2CC or CMT2CC, according to a study reporting the cases of 30 patients from eight unrelated families. Notably, the presentation and progression of this subtype more…