scholarly journals Comparison of fatty acid intakes assessed by a cardiovascular-specific food frequency questionnaire with red blood cell membrane fatty acids in hyperlipidaemic Australian adults: a validation study

2016 ◽  
Vol 70 (12) ◽  
pp. 1433-1438 ◽  
Author(s):  
T L Schumacher ◽  
T L Burrows ◽  
M E Rollo ◽  
L G Wood ◽  
R Callister ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Cell Membrane ◽  
Blood Cell ◽  
Validation Study ◽  
Red Blood Cell ◽  
Food Frequency Questionnaire ◽  
Food Frequency ◽  
Membrane Fatty Acids ◽  
Specific Food

scholarly journals Validation of a Semi-Quantitative Food-Frequency Questionnaire for Dutch Pregnant Women from the General Population Using the Method or Triads

Nutrients ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1341 ◽  
Author(s):  
Trudy Voortman ◽  
Régine P.M. Steegers-Theunissen ◽  
Nienke E. Bergen ◽  
Vincent W. V. Jaddoe ◽  
Caspar W. N. Looman ◽  
...  
Keyword(s):  
Fatty Acids ◽  
General Population ◽  
Blood Cell ◽  
Vitamin B12 ◽  
Pregnant Women ◽  
Red Blood Cell ◽  
Food Frequency Questionnaire ◽  
Serum Folate ◽  
Food Frequency ◽  
Folate And Vitamin B12

Objective: We aimed to validate a food-frequency questionnaire (FFQ) for Dutch pregnant women, against three 24 h-recalls and blood concentrations of B-vitamins and fatty acids, using the method of triads. Methods: We included 83 pregnant women from the general population of Rotterdam, the Netherlands, at a median gestational age of 15.6 weeks. Participants completed three non-consecutive 24 h-recalls, and subsequently filled out the 293-item FFQ. Participants provided blood samples from which we analyzed serum folate and vitamin B12, as well as red blood cell folate, linoleic acid, and total saturated, monounsaturated, and polyunsaturated fatty acids. Results: Estimated energy intake did not differ between the FFQ and 24 h-recalls. Deattenuated Pearson’s correlation coefficients, between energy-adjusted nutrient intake estimates from the FFQ and the 24 h-recalls, ranged from 0.41 (fat) to 0.88 (fiber) for macronutrients, and were around 0.6 for most micronutrients, except for vitamin E (0.27). Using the triad method, we obtained validity coefficients of 0.86 (95% Confidence Interval (CI) 0.36, 1.00) for serum folate, 0.86 (95% CI 0.18, 1.00) for red blood cell folate, and 1.00 (95% CI 0.42, 1.00) for vitamin B12. Validity coefficients for serum fatty acids ranged from 0.22 to 0.67. Conclusion: This FFQ is a reliable tool for estimating intake of energy, macronutrients, folate and vitamin B12 among women in mid-pregnancy.

scholarly journals Endogenous red blood cell membrane fatty acids and sudden cardiac arrest

Metabolism ◽  
2010 ◽  
Vol 59 (7) ◽  
pp. 1029-1034 ◽  
Author(s):  
Rozenn N. Lemaitre ◽  
Irena B. King ◽  
Nona Sotoodehnia ◽  
Robert H. Knopp ◽  
Dariush Mozaffarian ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Cardiac Arrest ◽  
Cell Membrane ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Sudden Cardiac Arrest ◽  
Red Blood Cell Membrane ◽  
Membrane Fatty Acids

scholarly journals Red Blood Cell Membrane Fatty Acids in U. S. Blood Donors (P06-123-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Carissa Powers ◽  
David Scully ◽  
Rosemary Schleicher
Keyword(s):  
Gender Differences ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Blood Donors ◽  
Saturated Fatty Acids ◽  
Omega 3 ◽  
Cardiac Events ◽  
Membrane Fatty Acids

Abstract Objectives The purpose of this study was to use a newly validated method for measuring 21 cis-fatty acids in red blood cell (RBC) membranes to investigate race-ethnic and gender differences in saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), and polyunsaturated fatty acids (PUFA). In addition, two long-chain PUFA, namely, eicosapentaenoic (EPA) and docosahexaenoic acid (DHA), were summed to provide an Omega-3 Index for each participant. This index is considered a cardiovascular risk factor. Methods Units (n = 120) of whole blood in EDTA were purchased from BioIVT (Westbury, NY). The demographic make-up of the set was 60:60 men: women. Of the 120 blood donors, 37% were black, 29% were white, and 34% were Hispanic. Average ages were 44 y (black), 48 y (white), and 43 y (Hispanic). Upon arrival, units were washed, treated with 1% BHT, and packed RBC were frozen until time of analysis. Hydrolysis of esters, derivitization with pentafluorobenzyl bromide, gas chromatography, and mass spectrometric detection were carried out to measure the 21 most abundant cis-fatty acid concentrations in RBC, which were converted to weight percentages of total. For the Omega-3 Index, the percentage of totals calculated for EPA and DHA were summed. Results There were few small (≤1%) race-ethnic differences and no gender differences in the proportions of fatty acids as SFA, MUFA, or PUFA; overall these averaged (SD) 44% (1%), 16% (1%), and 40% (1%), respectively. The Omega-3 Index averaged (SD) 3.5% (1%). One blood donor reached the suggested goal of ≥ 8%, which is associated with low risk for cardiac events. Conclusions This small study was undertaken in advance of the U.S. nationally representative survey, NHANES 2019–2020, in which RBC membrane fatty acids will be measured in the same laboratory. It will be interesting to learn whether NHANES will confirm the mostly null demographic findings in RBC fatty acid percentages and the low average Omega-3 Index. Funding Sources None.

scholarly journals PSXI-32 Effects of algae DHA on fatty acid profile of plasma red blood cell membrane and fecal microbiota of adult cats

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 319-319
Author(s):  
Carrie James ◽  
Sandra L Rodriguez-Zas ◽  
Maria R C de Godoy
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Blood Cell ◽  
Fish Oil ◽  
Red Blood Cell ◽  
Fecal Microbiota ◽  
Fatty Acid Profiles ◽  
Male Adult ◽  
Poultry Fat ◽  
Adult Cats

Abstract There is evidence that algae can be a sustainable alternative of omega-3 polyunsaturated fatty acids (w-3 PUFA; DHA and EPA) in the diets of felines, but more information is needed to determine bioavailability of algal w-3 PUFAs in felines. Therefore, the objective of this study was to determine the effects of dietary supplementation of algae DHA on plasma and red blood cell (RBC) membrane fatty acid profiles and fecal microbiota of adult cats. A complete randomized design was utilized with thirty female and male adult cats (mean age: 1.8 ± 0.03 yr, mean BW: 4.5 ± 0.8 kg) which were fed an assigned diet for 90 d. Three diets were formulated with poultry fat alone or inclusion of 2% fish oil or 2% algae DHA meal. Blood samples were collected after fasting on 0, 30, 60 and 90 d to be analyzed for plasma and red blood cell fatty acid profiles. A fresh fecal sample was collected within 15 min of defecation from each cat to be analyzed for fecal microbiota. Illumina 16S rRNA sequencing from V4 region was completed using MiSeq and analyzed using QIIME 2. Plasma and RBC fatty acid concentrations at baseline were similar among all cats and treatment groups. However, dietary treatment had a significant effect on the concentrations of several fatty acids in plasma and RBC over time. Plasma and RBC concentrations of DHA were greater (P < 0.05) for cats fed the algal DHA diet compared to the control and fish oil diets. Conversely, plasma and RBC concentrations of EPA did not differ among treatments when analyzed as a change from baseline. Beta- and alpha-diversity did not differ among treatments, indicating that 2% fish oil or algal-DHA meal does alter fecal microbiota of cats in contrast with cats fed a poultry fat-based diet.

scholarly journals Altered Levels of Desaturation and ω-6 Fatty Acids in Breast Cancer Patients’ Red Blood Cell Membranes

Metabolites ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 469
Author(s):  
Javier Amézaga ◽  
Gurutze Ugartemendia ◽  
Aitziber Larraioz ◽  
Nerea Bretaña ◽  
Aizpea Iruretagoyena ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Blood Cell ◽  
Cancer Patients ◽  
Red Blood Cell ◽  
Breast Cancer Patients ◽  
Disease Evolution ◽  
Lipidomic Analysis ◽  
Rbc Membrane

Red blood cell (RBC) membrane can reflect fatty acid (FA) contribution from diet and biosynthesis. In cancer, membrane FAs are involved in tumorigenesis and invasiveness, and are indicated as biomarkers to monitor the disease evolution as well as potential targets for therapies and nutritional strategies. The present study provides RBC membrane FA profiles in recently diagnosed breast cancer patients before starting chemotherapy treatment. Patients and controls were recruited, and their dietary habits were collected. FA lipidomic analysis of mature erythrocyte membrane phospholipids in blood samples was performed. Data were adjusted to correct for the effects of diet, body mass index (BMI), and age, revealing that patients showed lower levels of saturated fatty acids (SFA) and higher levels of monounsaturated fatty acid, cis-vaccenic (25%) than controls, with consequent differences in desaturase enzymatic index (∆9 desaturase, –13.1%). In the case of polyunsaturated fatty acids (PUFA), patients had higher values of ω-6 FA (C18:2 (+11.1%); C20:4 (+7.4%)). RBC membrane lipidomic analysis in breast cancer revealed that ω-6 pathways are favored. These results suggest new potential targets for treatments and better nutritional guidelines.

Telomere Length in Healthy Adults Is Positively Associated With Polyunsaturated Fatty Acids, Including Arachidonic Acid, and Negatively With Saturated Fatty Acids

2020 ◽  
Vol 76 (1) ◽  
pp. 3-6
Author(s):  
Varinderpal S Dhillon ◽  
Permal Deo ◽  
Ann Chua ◽  
Phil Thomas ◽  
Michael Fenech
Keyword(s):  
Fatty Acids ◽  
Arachidonic Acid ◽  
Fatty Acid ◽  
Blood Cell ◽  
Telomere Length ◽  
Red Blood Cell ◽  
Blood Cells ◽  
Saturated Fatty Acids ◽  
Fatty Acid Status ◽  
Acid Status

Abstract Lymphocyte telomere length (LTL) is a biomarker of aging that may be modified by dietary factors including fat. Red blood cell fatty acid status is a well-validated indicator of long-term dietary intake of fat from various sources. Recent findings from epidemiological studies of LTL in relation to fatty acids in red blood cells are not conclusive. The present study was carried out to investigate if red blood cell fatty acid status in 174 healthy older South Australians is associated with LTL. Lymphocyte telomere length was measured by real-time qPCR and fatty acid content in red blood cells was measured by gas chromatography. Our results indicate that the majority of saturated fatty acids and monounsaturated fatty acids are negatively associated with LTL, whereas polyunsaturated fatty acids are positively associated with LTL. Multiple regression analysis revealed that arachidonic acid (C20:4n-6) is significantly, independently, positively correlated with LTL (β = 0.262; p = .000). The significant association of fatty acids, particularly C20:4n-6, with telomere length warrants further research.

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