26 February, 2024
An Australian study, “Perspectives of carriers of X-linked retinal diseases on genetic testing and gene therapy: A global survey” (S.Gocuk et al, 2023) was recently published in Clinical Genetics, reporting on the first worldwide survey of female X-linked IRD carriers.
The study highlighted that over half of female carriers had genetic testing, with most people motivated to find out if they were a carrier and around one-third wanting to confirm a relative’s diagnosis. The majority of carriers experienced feelings of guilt, concern and anxiety for potentially passing on the disease-causing gene to their children which may cause loss of vision. Despite this, few reported receiving counselling or family planning advice.
X-linked conditions are caused by gene mutations on the X-chromosome. X-linked inherited retinal diseases include choroideremia, juvenile retinoschisis and X-linked retinitis pigmentosa.
Key report highlights
Survey responses were received from 288 female X-linked IRD carriers. The majority of respondents were from the United States of America (51%), Australia (19%), and the United Kingdom (14%).
- Over half (56%) female carriers had genetic testing and 38% had genetic counselling.
- Most respondents self-reported their motivation for undertaking genetic testing was because they had affected relatives and wanted to know if they were a carrier (57%) or wanted to confirm their relative’s diagnosis (36%).
- One in five carriers had genetic testing because they had symptoms suggestive of an IRD (20%) or were interested in family planning (18%).
- Female carriers experience feelings of guilt (70%), concern (91%), and anxiety for their child’s vision (88%) and their own vision, particularly as they receive limited information.
- Respondents agreed that their eyecare provider and general practitioner helped them understand their condition (63%), however, few carriers reported receiving psychological counselling (9%) or family planning advice (5%).
- Female carriers who had given birth to children had significantly greater gene therapy knowledge compared to carriers who had not.
- 78% of the respondents felt that female carriers should have access to emerging gene therapy options.
Retina Australia assisted in the distribution of the survey in this study.
https://retinaaustralia.com.au/perspectives-of-female-x-linked-ird-carriers/
Other Blogs
Cell therapy, genetic research and a patient’s perspective
This is a summary of the webinar that was presented on Saturday 19th October...
New Research: Comparison of Long Cane and Electronic Travel Aids for Mobility
The research study, "Functional performance comparison of long cane...
World Research Summary by Dr Catherine Civil
Hot Off The Press More updates on the latest research: CRISPR-Cas13 and RNA We have just about got our heads around the...