Medical Researches
Possibly Effective
Based on 29 Researches
DHA-derived lipid mediators aid asthmaLipid mediators obtained from docosahexaenoic acid by soybean lipoxygenase alleviate ovalbumin‑induced allergic asthma in mice by reducing airway inflammation and oxidative stress.
Docosahexaenoic acid effects noted
We explored the potential of lipid mediators derived from docosahexaenoic acid (DHA) in treating allergic asthma using a well-established ovalbumin (OVA) model in mice. The treatment comprised a mix of lipid mediators, including 17S-monohydroxy DHA, resolvin D5, and protectin DX. Through this investigation, we aimed to better understand how these components could alleviate asthma symptoms.
Our findings indicated that administering these lipid mediators significantly reduced key features of allergic asthma. We observed a decrease in inflammatory cell infiltration, particularly in eosinophils, and a drop in the levels of inflammation-related cytokines. Furthermore, treatment with the lipid mediators helped mitigate airway remodeling and oxidative stress, indicating a return to near-normal conditions for the mice.
Notably, the lipid mediators led to a remarkable drop in inflammatory markers such as interleukin-6 and tumor necrosis factor-α, signaling a positive response. We also witnessed an improvement in the lung's oxidative stress status, as shown by increased antioxidant activities and reduced harmful substances.
Collectively, our study suggests that lipid mediators from DHA could represent a promising therapeutic avenue for asthma treatment, particularly by protecting lung tissues from inflammation and oxidative damage.
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LCPUFA supplementation's impact on asthmaA specific combined long-chain polyunsaturated fatty acid supplementation reverses fatty acid profile alterations in a mouse model of chronic asthma.
Combination therapy shows promise
We explored how chronic asthma affects the levels of specific long-chain polyunsaturated fatty acids (LCPUFAs) in the body and whether supplementation could help rebalance these levels. In our study, mice were sensitized to house dust mite extract to simulate allergic asthma and were then fed either a normal diet, eicosapentaenoic acid (EPA), or a specific combination of LCPUFAs, including docosahexaenoic acid (DHA), over a period of 24 days.
What we observed was quite intriguing. Allergic asthma indeed altered the fatty acid profiles in both blood and lung tissue of the mice. However, when we looked at the effects of our specific combination of n-3 and n-6 LCPUFAs, we found that it completely restored the altered profiles in lung tissue, unlike EPA alone. This suggests that a tailored combination of these fatty acids, which includes DHA, may be highly effective in managing the inflammatory processes associated with asthma.
Thus, our findings highlight the potential of combined LCPUFA supplementation as a meaningful approach to alleviate asthma-related inflammation and improve overall respiratory health.
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Eicosapentaenoic acid improves asthmaEffects of low-dust forages on dust exposure, airway cytology, and plasma omega-3 concentrations in Thoroughbred racehorses: A randomized clinical trial.
Study highlights EPA's benefits
We compared how different types of forage affected asthma in Thoroughbred racehorses. Our focus was on assessing dust exposure, airway health, and the presence of eicosapentaenoic acid (EPA), an omega-3 fatty acid known for its anti-inflammatory properties. The horses were randomly assigned to three diets: dry hay, steamed hay, or haylage for a period of six weeks.
Throughout the study, we observed that horses fed steamed hay and haylage had significantly lower dust exposure compared to those that consumed dry hay. Interestingly, those on the haylage diet not only showed reduced levels of neutrophils in their bronchoalveolar lavage fluid, indicating better airway health, but they also had an increase in the ratio of anti-inflammatory to pro-inflammatory lipids, particularly EPA.
In fact, the horses on haylage had higher ratios of eicosapentaenoic acid compared to both their baseline measurements and horses on the other diets. This suggests that incorporating haylage could be beneficial for managing asthma symptoms in racehorses. Overall, it appears that haylage may help improve respiratory health by reducing inflammation linked to asthma through its higher anti-inflammatory lipid profile.
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We set out to understand how eicosapentaenoic acid (EPA) might enhance the effects of mesenchymal stromal cell (MSC) therapy for allergic asthma. In our study, we used mice to create a model of severe allergic asthma by exposing them to house dust mite extracts. After the final exposure, we administered either unstimulated or EPA-stimulated MSCs to see how they impacted the mice's lung health and inflammation.
Our findings were quite promising. The mice that received EPA-stimulated MSCs showed notable improvements in their lung function and overall respiratory health compared to those treated with unstimulated MSCs. Specifically, we noticed a reduction in bronchoconstriction, less alveolar collapse, and decreased overall cell counts in the lungs, which is a sign of lower inflammation. Additionally, we saw an increase in beneficial markers such as IL-10 and changes in macrophage types, indicating a shift toward a more anti-inflammatory state.
This research underscores the potential of combining EPA with MSC therapy as a new approach for tackling allergic asthma. By enhancing the anti-inflammatory effects of MSCs, EPA might not only improve lung mechanics but also protect against further airway damage. Our work suggests that this strategy could be an exciting avenue for developing better treatments for asthma and potentially other inflammatory conditions.
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In our exploration of asthma treatment, we focused on sea cucumber extracts and their effects on allergic airway inflammation. Using a method that separated the extract into three distinct phases, we specifically looked at how the n-hexane phase—rich in fatty acids like eicosapentaenoic acid—could influence asthma symptoms in mice.
We observed that when mice with asthma were treated with this n-hexane phase, their symptoms improved. This phase not only elevated the expression of Il10, an important anti-inflammatory cytokine, but also reduced the presence of eosinophils and goblet cell hyperplasia around the airways. Remarkably, we found decreases in several Th2 and Th17-related cytokines, which are usually elevated during asthma attacks.
The increase in other markers, like TGF-β and IL-10, is particularly interesting, as these are associated with regulatory T cells, which help control inflammation. Our findings suggest that eicosapentaenoic acid, along with other components in the sea cucumber extract, plays a positive role in addressing asthma symptoms by modulating immune responses effectively.
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User Reviews
Effective asthma treatment
It helps with asthma very effectively, especially when taken with zinc and magnesium.
Wonderfully helpful for my granny, who is 80 and has asthma. She started to feel better and less tired.
Reduced coughs due to asthma
For coughs and asthma, this seems effective. I usually do not eat much fish, so I ordered it for the omega. I found it helps prevent sickness when I have a cold.