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Straight versus tortuous retinal arteries in relation to blood pressure and genetics

Taarnhøj, Nina Charlotte Bille Brahe ; Munch, Inger Christine ; Sander, Birgit ; Kessel, Line ; Hougaard, Jesper Leth LU ; Kyvik, Kirsten Ohm ; Sørensen, Thorkild I A and Larsen, Michael (2008) In British Journal of Ophthalmology 92(8). p.1055-1060
Abstract
Abstract
BACKGROUND/AIMS: To assess the relative influence of genetic and environmental factors on retinal arterial tortuosity and the association between tortuosity and various health indices in healthy young to middle-aged persons. METHODS: This cross-sectional study included 57 monozygotic and 52 dizygotic same-sex healthy twin pairs, aged 20 to 46 years, who were characterised by determination of retinal vessel diameters, arterial blood pressure, blood glucose, body mass index, smoking habits and retinal arterial tortuosity, using a three-level grading scale (straight, wavy, tortuous). Heritability of retinal arterial tortuosity was estimated using structural equation modelling. RESULTS: Of 218 subjects, 79 (36.2%) had straight... (More)
Abstract
BACKGROUND/AIMS: To assess the relative influence of genetic and environmental factors on retinal arterial tortuosity and the association between tortuosity and various health indices in healthy young to middle-aged persons. METHODS: This cross-sectional study included 57 monozygotic and 52 dizygotic same-sex healthy twin pairs, aged 20 to 46 years, who were characterised by determination of retinal vessel diameters, arterial blood pressure, blood glucose, body mass index, smoking habits and retinal arterial tortuosity, using a three-level grading scale (straight, wavy, tortuous). Heritability of retinal arterial tortuosity was estimated using structural equation modelling. RESULTS: Of 218 subjects, 79 (36.2%) had straight retinal arteries, 110 (50.5%) had wavy arteries, and 29 (13.3%) had tortuous arteries. Heritability of tortuosity was 82% (CI(95 )64, 92%), with unshared environmental factors accounting for the remaining 18% (CI(95 )8, 36%). Increasing values of mean arterial blood pressure and body mass index were both associated with decreasing levels of retinal arterial tortuosity. CONCLUSION: There was a large variation in tortuosity of retinal arteries in these healthy subjects and the predominant determinant was genetic influence, accounting for 82% of the observed variation in tortuosity. (Less)
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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
British Journal of Ophthalmology
volume
92
issue
8
pages
1055 - 1060
publisher
BMJ Publishing Group
external identifiers
  • scopus:49049106329
ISSN
1468-2079
DOI
10.1136/bjo.2007.134593
language
English
LU publication?
no
id
785cf5b1-451d-4223-b70f-c523cd22ee38
date added to LUP
2019-06-13 11:32:18
date last changed
2023-06-08 04:28:36
@article{785cf5b1-451d-4223-b70f-c523cd22ee38,
  abstract     = {{Abstract<br/>BACKGROUND/AIMS: To assess the relative influence of genetic and environmental factors on retinal arterial tortuosity and the association between tortuosity and various health indices in healthy young to middle-aged persons. METHODS: This cross-sectional study included 57 monozygotic and 52 dizygotic same-sex healthy twin pairs, aged 20 to 46 years, who were characterised by determination of retinal vessel diameters, arterial blood pressure, blood glucose, body mass index, smoking habits and retinal arterial tortuosity, using a three-level grading scale (straight, wavy, tortuous). Heritability of retinal arterial tortuosity was estimated using structural equation modelling. RESULTS: Of 218 subjects, 79 (36.2%) had straight retinal arteries, 110 (50.5%) had wavy arteries, and 29 (13.3%) had tortuous arteries. Heritability of tortuosity was 82% (CI(95 )64, 92%), with unshared environmental factors accounting for the remaining 18% (CI(95 )8, 36%). Increasing values of mean arterial blood pressure and body mass index were both associated with decreasing levels of retinal arterial tortuosity. CONCLUSION: There was a large variation in tortuosity of retinal arteries in these healthy subjects and the predominant determinant was genetic influence, accounting for 82% of the observed variation in tortuosity.}},
  author       = {{Taarnhøj, Nina Charlotte Bille Brahe and Munch, Inger Christine and Sander, Birgit and Kessel, Line and Hougaard, Jesper Leth and Kyvik, Kirsten Ohm and Sørensen, Thorkild I A and Larsen, Michael}},
  issn         = {{1468-2079}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{1055--1060}},
  publisher    = {{BMJ Publishing Group}},
  series       = {{British Journal of Ophthalmology}},
  title        = {{Straight versus tortuous retinal arteries in relation to blood pressure and genetics}},
  url          = {{http://dx.doi.org/10.1136/bjo.2007.134593}},
  doi          = {{10.1136/bjo.2007.134593}},
  volume       = {{92}},
  year         = {{2008}},
}