Insights & Discussion
Moderate consumption of fish, particularly oily fish, may decrease rheumatoid arthritis risk, potentially countering the increased risk induced by smoking.
The research was carried out within the E3N Study, a French prospective cohort study involving 98,995 women from 1990. Within this group, the diet of the subjects was assessed via validated food frequency questionnaires gathered in 1993. Utilising the colossal amount of data collected, a statistical method known as Cox proportional hazards models were implemented to identify potential relationships between incident rheumatoid arthritis, various types and amounts of fish consumption, and other potential risk factors such as smoking and age.
Looking at the discussion of results, the study unearthed some fascinating links. Starting off, no linear association between general fish consumption and rheumatoid arthritis risk existed. Nevertheless, moderate consumption of fish was found to have a protective effect, reducing likelihood of developing rheumatoid arthritis. Digging deeper, this protection was especially pronounced in current or former smokers. Interestingly, this favorable association seemed to be stronger when it came to consumption of oily fish, thanks to its high omega-3 fatty acid content. Conversely, lean fish consumption did not display the same level of correlation. The proposed theory is the protective influence is likely due to the omega-3 fatty acid content prevalent in oily fish.
Discover Related Insights
The review reveals that nutritional supplements, particularly fish oils, vitamins, trace elements, and phytochemical extracts, show promising therapeutic potential for Dry Eye Disease management.
2024 Frontiers in Pharmacology Recommendations for nutritional supplements for dry eye disease: current advances Cong Y, Zhang Y, Han Y, Wu Y, Wang D, Zhang B
Systematic Review Dry Eye Omega-3 Fatty Acids
The methodology used in the research paper mainly focuses on evaluating different oral nutritional supplements with varied compositions and dosages, in order to assess their impact on Dry Eye Disease symptoms. These supplements include key components like fish oils, vitamins, trace elements, and extracts from plants, recognized for their potential nutritional value. Emphasizing the role of nutrition in combating ocular surface diseases, the research also emphasizes the imbalance caused by deficiencies in polyunsaturated fatty acids and vitamin insufficiencies, which can lead to ocular issues such as inflammation and oxidative stress.
The results discussion outlines considerable benefits of using these supplements, not only for managing Dry Eye Disease symptoms but also potentially for overall ocular health. It was observed that nutrients in these supplements hold promising therapeutic qualities, presenting new perspectives for supplement combinations in Dry Eye Disease treatment. Beyond the well-known nutrients, it was suggested that exploring novel nutrients could help establish even more effective management strategies for Dry Eye Disease.
Nutrition, particularly an anti-inflammatory Mediterranean diet supplemented with oily fish and omega-3 supplements, can potentially reduce inflammation and improve symptoms of rheumatoid arthritis.
2023 Autoimmunity Reviews Nutrition and its role in prevention and management of rheumatoid arthritis Nikiphorou E, Philippou E
Review Article Mediterranean Diet Omega-3 Fatty Acids Sardine
The review examines evidence indicating a possible connection between nutrition and the risk and management of rheumatoid arthritis, an autoimmune disease having an immune-inflammatory response. The impact of different food types was considered, including pro-inflammatory and anti-inflammatory foods. Specifically, the research highlights the effectiveness of a Mediterranean diet, rich in fish and supplemented with omega-3 polyunsaturated fatty acids, in reducing inflammation and oxidation. Other factors such as herbs and spices, beverages, vitamin D, and probiotics were also taken into account. The research emphasizes the direct and indirect role of nutrition through the management of co-morbidity.
The disease activity was observed to improve with dietary changes, particularly a propensity to reduce inflammation, oxidation, and beneficial effects on gut microbiota. An anti-inflammatory Mediterranean diet, supplemented with consumption of oily fish at least twice a week, and daily intake of omega-3 polyunsaturated fatty acid supplements of 2 g, has been recommended. The study also highlights the importance of rheumatologists working closely with registered dietitians to support patients in managing a well-balanced diet according to their individual needs.
Omega-3 fatty acid supplements can effectively alleviate symptoms of dry eye disease, especially when consumed in high doses for a long term and with high eicosapentaenoic acid levels.
2023 Journal of Clinical Medicine Efficacy of Omega-3 Intake in Managing Dry Eye Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials Wang WX, Ko ML
Meta-Analysis Dry Eye Eicosapentaenoic Acid Omega-3 Fatty Acids
The methodology of this study involved an intensive review of data from multiple reliable sources like PubMed, Embase, and others covering the timespan from 2013 to 2023. The focus was on randomized clinical trials that studied the impact of omega-3 fatty acids on patients with dry eye disease and provided accessible pre- and post-intervention data. Studies with overlapping participants were excluded, as were studies without omega-3 supplementation or not featuring a placebo control or quantitative assessments. Independent reviewers extracted data pertaining to dry eye symptom scores and other related metrics.
The results showed that patients who were administered omega-3 treatment demonstrated considerable improvement in symptoms of dry eye disease compared to those on a placebo treatment. The meta-regression analysis deduced positive correlations between the daily dose of omega-3, duration of omega-3 intake, and percentage of eicosapentaenoic acid, with a reduction in dry eye symptom scores. Similar trends were observed with other dry eye related metrics. These findings provide substantial evidence on the beneficial effect of omega-3 fatty acid supplements in managing dry eye disease. However, due to the diversity in patient characteristics and the heterogeneity in study results, care should be taken in widely applying these findings.
Increased plasma omega-3 levels, which are associated with genetically higher intake of omega-3, contribute to a higher risk of rheumatoid arthritis among people of European ancestry.
2022 Clinical Rheumatology Mendelian randomization study on the causal effects of omega-3 fatty acids on rheumatoid arthritis Zhu G, Zhou S, Xu Y, Gao R, Li H, Zhai B, et al.
Cohort Study Omega-3 Fatty Acids Rheumatoid Arthritis
Methodology: The researchers have used an extensive set of data from the largest Genome-Wide Association Study (GWAS) which focuses on the correlation between omega-3 fatty acids and rheumatoid arthritis. They used information from a total of 114,999 individuals with European ancestry for the omega-3 study and 14,361 cases along with 43,923 controls of European ancestry for the rheumatoid arthritis study. By employing various methodological tests such as Mendelian randomization-egger_intercept, MR-PRESSO, and Cochran's Q test, they assessed the role of pleiotropy and heterogeneity in the relationship between omega-3 and rheumatoid arthritis.
Discussion of Results: Results reveal no significant bias, pleiotropy, or heterogeneity among the omega-3 genetic instrumental variables in rheumatoid arthritis datasets. However, as the Mendelian randomization analysis indicated a causal link, the study provides the inference that with the genetic increase of omega-3 levels, the risk of rheumatoid arthritis also increases, particularly among individuals of European descent. Therefore, it suggests that the reduction in the intake of omega-3 could potentially reduce the risk of rheumatoid arthritis in this population.
Vitamin D and Omega 3 fatty acids supplementation appears to reduce the risk of autoimmune diseases.
2022 BMJ Open Vitamin D and marine omega 3 fatty acid supplementation and incident autoimmune disease: VITAL randomized controlled trial Hahn J, Cook NR, Alexander EK, Friedman S, Walter J, Bubes V, et al.
Cohort Study Autoimmune Disease Omega-3 Fatty Acids Vitamin D
In this nationwide, double-blind, randomized, controlled trial, 25,871 male and female participants over the ages of 50 and 55 respectively, were given either Vitamin D (2000 IU/day), Omega 3 fatty acids (1000 mg/day), both, or a placebo. Over the median follow-up period of 5.3 years, participants self-reported cases of autoimmune diseases, and these were verified by thorough medical record review.
In the discussion of results, it was found that Vitamin D supplementation, regardless of the presence of Omega 3, seemed to reduce the occurrence of autoimmune diseases by 22%. Meanwhile, Omega 3 supplementation alone didn't show a statistically significant reduction in autoimmune diseases, but it did show a larger effect in reducing autoimmune diseases than the reference arm (that received placebo for both Vitamin D and Omega 3).
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