Cited by 76Nutritional Studies and DietFatty Acid Research and HealthMetabolism and Genetic Disorders

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

Phytanic acid: measurement of plasma concentrations by gas-liquid chromatography-mass spectrometry analysis and associations with diet and other plasma fatty acids

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Abstract

Epidemiological data suggest that a diet rich in animal foods may be associated with an increased risk of several cancers, including cancers of the prostate, colorectum and breast, but the possible mechanism is unclear. It is hypothesised that phytanic acid, a C20 branched-chain fatty acid found predominantly in foods from ruminant animals, may be involved in early cancer development because it has been shown to up regulate activity of alpha-methylacyl-coenzyme A racemase, an enzyme commonly found to be over-expressed in tumour cells compared with normal tissue. However, little is known about the distribution of plasma phytanic acid concentrations or its dietary determinants in the general population. The primary aim of the present cross-sectional study was to determine circulating phytanic acid concentrations among ninety-six meat-eating, lacto-ovo-vegetarian and vegan women, aged 20-69 years, recruited into the Oxford component of the European Prospective Investigation into Cancer and Nutrition (EPIC-Oxford). Meat-eaters had, on average, a 6.7-fold higher geometric mean plasma phytanic acid concentration than the vegans (5.77 v. 0.86 micromol/l; P < 0.0001) and a 47 % higher mean concentration than the vegetarians (5.77 v. 3.93 micromol/l; P = 0.016). The strongest determinant of plasma phytanic acid concentration appeared to be dairy fat intake (r 0.68; P < 0.0001); phytanic acid levels were not associated with age or other lifestyle factors. These data show that a diet high in fat from dairy products is associated with increased plasma phytanic acid concentration, which may play a role in cancer development.

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  1. 1993, Food Portion Sizes
  2. 2003, The National Diet and Nutrition Survey: Adults Aged 19 to 64 Years. Volume 2: Energy, Protein, Carbohydrate, Fat and Alcohol Intake

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Metadata

Authors
Allen, N. E., Grace, P. B., Ginn, A., Travis, R. C., Roddam, A. W., Appleby, P. N., & Key, T.
Affiliations
University of Oxford (GB)
Corresponding author
Key, Timothy
Venue
British Journal Of Nutrition
Published
2008-03
Volume
99
Issue
3
Pages
653-659
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
OpenAlex
W2006381997
Cited by
76
References
33
Citations by year
2025: 2 · 2024: 4 · 2023: 4 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 7 · 2018: 3 · 2017: 2 · 2016: 5 · 2015: 1 · 2014: 4 · 2013: 5 · 2012: 4
FWCI
5.17
Type
journal article
Language
en
Open access
Locations
  • British Journal Of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Cancer Research UK
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
Keywords
phytanic acid, plasma fatty acids, branched-chain fatty acids, meat consumption, vegetarian diet, vegan diet, AMACR, cancer risk, women
MeSH terms
Adult, Aged, Aging, Anthropometry, Cross-Sectional Studies, Dairy Products, Diet, Fatty Acids, Feeding Behavior, Female, Humans, Life Style, Gas Chromatography-Mass Spectrometry, Middle Aged, Phytanic Acid, Diet, Vegetarian

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