Improvement of coronary vasomotion with eicosapentaenoic acid does not inhibit acetylcholine-induced coronary vasospasm in patients with variant angina.
We examined how eicosapentaenoic acid (EPA), a key ingredient found in fish oil, impacts chest pain in patients with variant angina. Our study followed 22 individuals with this condition, where we infused acetylcholine, a substance known to cause coronary vasospasm, both before and after a four-month course of EPA treatment (1.8 g/day for 12 patients).
In the group that did not receive EPA, we observed no changes in how their coronary arteries responded to acetylcholine over time. However, for those treated with EPA, the results were quite intriguing. In non-spastic areas, the response shifted from vasoconstriction (narrowing) to vasodilation (widening). This indicates a notable improvement in how these arteries are functioning.
Yet, when it came to spastic sites where vasospasm had occurred, the coronary arteries remained responsive to acetylcholine, and the vasospasm persisted despite the EPA treatment. Thus, while EPA enhanced coronary responsiveness in some areas, it did not eliminate the acetylcholine-induced coronary vasospasms associated with variant angina.
Read More
8
Eicosapentaenoic acid may reduce chest pain
[Study of in vitro thromboxane A2 generation by platelets of patients with first-time appearing angina pectoris under the effect of fish diet].
We explored how an eicosapentaenoic acid (EPA)-rich diet influences the generation of thromboxane A2 (TxA2) in patients experiencing first-time angina pectoris. TxA2 plays a crucial role in promoting blood clotting and causing spasms of the blood vessels, both of which are key issues in coronary heart diseases.
Our study compared the effects of an EPA-rich diet with a standard hospital diet on the ability of platelets to generate TxA2 when stimulated by ADP. Among the 12 patients with first angina, those who adhered to the standard hospital diet showed the capacity to produce TxA2 under these conditions. Conversely, those who consumed the EPA-rich diet did not exhibit this same generation of TxA2.
The findings suggest that the fish-based diet rich in EPA may positively affect platelet aggregation. We observed a reduced potential for harmful TxA2 generation in the patients on the EPA-rich diet, indicating a possible lower risk for vascular spasms associated with angina.
In conclusion, while more research is needed to confirm these effects, the initial results reveal that incorporating EPA into the diet might help alleviate some risks associated with chest pain due to its impact on platelet behavior.
Read More
8
Eicosapentaenoic acid shows potential
The long-term effect of dietary supplementation with fish lipid concentrate on serum lipids, bleeding time, platelets and angina.
We examined the impact of eicosapentaenoic acid—a key component in fish oil—on chest pain among 107 individuals over two years. Ninety-two of these participants had established heart disease or high cholesterol levels, while 15 did not have any history of heart problems.
Through this study, we found that serum triglyceride levels dropped quickly, suggesting a significant benefit for those dealing with high fat in the blood. While cholesterol levels decreased at a slower rate, intriguingly, the levels of good cholesterol (HDL) increased—often associated with better heart health.
Another notable finding was the lengthening of bleeding times and a reduced need for glyceryl trinitrate (GTN) tablets, which are often used to relieve angina attacks. This reduction in angina suggests that eicosapentaenoic acid might help alleviate chest pain by lowering the frequency of angina episodes and affecting platelet behavior, making them less likely to clump together.
However, it is essential to point out that while these changes promote heart health, this study did not compare the fish lipid concentrate with a placebo or an alternative treatment, leaving some of the isolated effects a little unclear. Overall, the trends observed are promising for heart disease management but should be interpreted with caution.
Read More
Most Useful Reviews
9
Joint pain relief
5 people found this helpful
This product was recommended by my doctor, and after a few weeks, my joint and back pain vanished. It's beneficial for the brain, heart, and eyes as well. I believe its anti-inflammatory properties surpass any pharmaceutical alternatives. I wholeheartedly recommend it for anyone suffering from chest pain.
Read More
9
Normalised heart function
After a car accident in 2016, I was advised to rest and avoid walking, which was challenging. I experienced chest pain whenever I exerted myself. However, after starting this omega supplement, I noticed significant improvements from day one. I’m now back to normal, thanks to this product.
Read More
7.5
Memory improvement
9 people found this helpful
DHA 500 (Omega 3) significantly helps my memory! I purchased this in July 2021, and it arrived promptly within 10 days without extra charges. I take three capsules daily, one before each meal. After using it for two months, I've experienced a notable enhancement in memory and focus during my studies and work, and my chest pain has also noticeably diminished.
Randomized, double-blind, placebo-controlled trial of fish oil and mustard oil in patients with suspected acute myocardial infarction: the Indian experiment of infarct survival--4.
We conducted a randomized, double-blind, placebo-controlled trial to assess how eicosapentaenoic acid, found in fish oil, might impact chest pain in patients experiencing suspected acute myocardial infarction (AMI). Over one year, we compared outcomes among groups taking fish oil, mustard oil, and a placebo, all starting treatment roughly 18 hours after symptoms appeared.
Our findings highlighted that both fish oil and mustard oil groups experienced fewer overall cardiac events compared to the placebo group. However, while we did observe reductions in nonfatal infarctions and total cardiac deaths within the fish oil group, there was no similar reduction in chest pain or direct measures of angina specifically linked to these treatments.
Interestingly, the study indicated that levels of cardiac arrhythmias and left ventricular enlargement were also reduced in those taking fish oil and mustard oil compared to those on a placebo. While we saw some improvements in overall cardiac health, the direct effects on chest pain from taking eicosapentaenoic acid were not conclusively established in this trial.
Ultimately, although fish oil shows promise in improving various heart-related outcomes, the specific impact on chest pain wasn't distinctly proven through our study results. Further extensive research will be essential to draw firmer conclusions.
Read More
8
Eicosapentaenoic acid may reduce chest pain
[Study of in vitro thromboxane A2 generation by platelets of patients with first-time appearing angina pectoris under the effect of fish diet].
We explored how an eicosapentaenoic acid (EPA)-rich diet influences the generation of thromboxane A2 (TxA2) in patients experiencing first-time angina pectoris. TxA2 plays a crucial role in promoting blood clotting and causing spasms of the blood vessels, both of which are key issues in coronary heart diseases.
Our study compared the effects of an EPA-rich diet with a standard hospital diet on the ability of platelets to generate TxA2 when stimulated by ADP. Among the 12 patients with first angina, those who adhered to the standard hospital diet showed the capacity to produce TxA2 under these conditions. Conversely, those who consumed the EPA-rich diet did not exhibit this same generation of TxA2.
The findings suggest that the fish-based diet rich in EPA may positively affect platelet aggregation. We observed a reduced potential for harmful TxA2 generation in the patients on the EPA-rich diet, indicating a possible lower risk for vascular spasms associated with angina.
In conclusion, while more research is needed to confirm these effects, the initial results reveal that incorporating EPA into the diet might help alleviate some risks associated with chest pain due to its impact on platelet behavior.
Read More
8
Eicosapentaenoic acid shows potential
The long-term effect of dietary supplementation with fish lipid concentrate on serum lipids, bleeding time, platelets and angina.
We examined the impact of eicosapentaenoic acid—a key component in fish oil—on chest pain among 107 individuals over two years. Ninety-two of these participants had established heart disease or high cholesterol levels, while 15 did not have any history of heart problems.
Through this study, we found that serum triglyceride levels dropped quickly, suggesting a significant benefit for those dealing with high fat in the blood. While cholesterol levels decreased at a slower rate, intriguingly, the levels of good cholesterol (HDL) increased—often associated with better heart health.
Another notable finding was the lengthening of bleeding times and a reduced need for glyceryl trinitrate (GTN) tablets, which are often used to relieve angina attacks. This reduction in angina suggests that eicosapentaenoic acid might help alleviate chest pain by lowering the frequency of angina episodes and affecting platelet behavior, making them less likely to clump together.
However, it is essential to point out that while these changes promote heart health, this study did not compare the fish lipid concentrate with a placebo or an alternative treatment, leaving some of the isolated effects a little unclear. Overall, the trends observed are promising for heart disease management but should be interpreted with caution.
Read More
7
Eicosapentaenoic acid and chest pain
Role of polyunsaturated fatty acids in Japanese patients with coronary spastic angina.
We explored how eicosapentaenoic acid (EPA), a type of omega-3 fatty acid, might play a role in managing chest pain, particularly for those suffering from coronary spastic angina (CSA). In our study, we looked at 406 patients who underwent an ergonovine tolerance test during coronary angiography to diagnose CSA.
The patients were divided into two age groups: young individuals (65 years or younger) and elderly individuals (older than 66). We found that for younger patients who tested positive for CSA, their serum levels of EPA were significantly higher compared to those without CSA. Specifically, the levels of EPA were 64.3 μg/mL in the CSA-positive group versus 49.4 μg/mL in the CSA-negative group, and this difference was statistically significant. Furthermore, docosahexaenoic acid (DHA) levels also followed a similar pattern.
However, the same pattern did not hold for the elderly group, where the levels of these fatty acids did not show a clear relationship with CSA. Through our multivariate analysis, it became clear that higher levels of EPA and DHA were independently associated with CSA in younger patients, suggesting that these fatty acids may be influential in the pathophysiology of chest pain linked to CSA for this demographic.
Overall, while we demonstrated some intriguing links between EPA levels and chest pain in younger individuals, we found that these associations do not translate similarly for older adults.
Read More
7
Eicosapentaenoic acid aids plaque reduction
A randomized controlled trial of eicosapentaenoic acid in patients with coronary heart disease on statins.
We investigated whether adding eicosapentaenoic acid (EPA) to high-dose pitavastatin could enhance coronary plaque regression and help manage chest pain in patients with coronary heart disease (CHD). In a randomized controlled trial, 193 CHD patients who received percutaneous coronary intervention were divided into two groups: one received pitavastatin alone, while the other received both pitavastatin and EPA.
Over a period of 6 to 8 months, we observed that the combination of EPA and pitavastatin notably reduced coronary plaque volume compared to pitavastatin alone. This reduction was particularly significant for patients with stable angina pectoris (SAP), suggesting that EPA may have a more beneficial effect on chest pain in these patients.
However, despite the promising results for plaque reduction, the study did not report a direct decrease in the incidence of chest pain as a significant outcome measure. Overall, while EPA treatment appears to support coronary health and may be more effective for certain patients, the specific impact on chest pain requires further exploration.
This product was recommended by my doctor, and after a few weeks, my joint and back pain vanished. It's beneficial for the brain, heart, and eyes as well. I believe its anti-inflammatory properties surpass any pharmaceutical alternatives. I wholeheartedly recommend it for anyone suffering from chest pain.
Read More
9
Normalised heart function
After a car accident in 2016, I was advised to rest and avoid walking, which was challenging. I experienced chest pain whenever I exerted myself. However, after starting this omega supplement, I noticed significant improvements from day one. I’m now back to normal, thanks to this product.
Read More
7.5
Memory improvement
9 people found this helpful
DHA 500 (Omega 3) significantly helps my memory! I purchased this in July 2021, and it arrived promptly within 10 days without extra charges. I take three capsules daily, one before each meal. After using it for two months, I've experienced a notable enhancement in memory and focus during my studies and work, and my chest pain has also noticeably diminished.
Read More
7.5
Joint pain alleviation
2 people found this helpful
I initially bought this for my eyes, but it has also helped alleviate the joint pain in my knee and shoulder. DHA seems to have a positive effect on my chest pain as well. I plan to continue using it given its benefits for brain health.
Read More
7.5
Effective for inflammation
4 people found this helpful
This is one of the best fish oil products I've encountered, and I highly recommend it. It works wonders for joint pain and inflammation, providing quick relief. I take 2 to 4 softgels daily, with food. My chest pain has improved significantly since starting this supplement.
Chest pain is a broad term that refers to discomfort or pain felt in the chest area, and it can arise from a variety of causes. It can range from a sharp, stabbing sensation to a dull ache or pressure. Some common causes of chest pain include heart-related issues, such as angina or heart attacks, as well as non-cardiac conditions like acid reflux, musculoskeletal problems, or anxiety. Since chest pain can represent a serious condition, especially if it is sudden and severe, it's crucial to pay attention to accompanying symptoms such as shortness of breath, sweating, or nausea, which may warrant immediate medical attention.
If you're experiencing chest pain, it's essential to consult a healthcare professional for an accurate diagnosis. They may perform tests such as an electrocardiogram (ECG), blood tests, or imaging studies to determine the underlying cause. Early identification of heart-related issues can be life-saving, while non-cardiac causes, though often less serious, still require appropriate assessment and treatment. Understanding the context and quality of the pain can help guide that conversation with your doctor, ensuring you receive the best care possible.
DHA, or docosahexaenoic acid, is an omega-3 fatty acid that is crucial for various bodily functions, particularly in brain health and development. Found abundantly in fish oil, algae, and certain other marine sources, DHA plays a significant role in building and maintaining the structure of brain cell membranes. As a primary structural component of the cerebral cortex, retina, and sperm cells, adequate levels of DHA are essential for optimal neurological functioning and overall cognitive health.
Research indicates that DHA supports brain development in infants and children, making it a vital nutrient during pregnancy and breastfeeding. Furthermore, DHA has been linked to various health benefits, including a potential reduction in the risk of Alzheimer's disease, improved heart health, and anti-inflammatory effects. While our bodies can convert some ALA (alpha-linolenic acid) — another omega-3 fatty acid — into DHA, dietary sources like fatty fish, fish oil supplements, or algae-based supplements can help individuals, especially those who do not consume fish, to achieve sufficient DHA intake for their health needs.
DHA (docosahexaenoic acid) is an omega-3 fatty acid found in various foods, particularly fatty fish like salmon, mackerel, and sardines, as well as in supplements. While DHA is known for its beneficial effects on heart health, including lowering triglyceride levels and reducing inflammation, it is important to note that it is not a direct treatment for chest pain. Chest pain can stem from a variety of causes such as angina, heart attack, or musculoskeletal issues, and it’s crucial to understand the underlying reason for the pain before considering treatment options.
In terms of managing heart health, incorporating DHA into your diet may contribute to overall cardiovascular wellness, potentially reducing the risk of heart-related issues that could lead to chest pain. However, anyone experiencing chest pain should seek medical attention immediately as prompt diagnosis and treatment are essential. While DHA may support heart health over the long term, it should not be regarded as a remedy for acute chest pain conditions. Always consult a healthcare professional for personalized advice and treatment plans.
Based on user reviews, the timeline to see results from this supplement for chest pain can vary. Some users report experiencing immediate benefits, with one user noting significant improvements in their chest pain from day one after starting the omega supplement (Read Review). Other users suggest a slightly longer duration before noticing changes; for example, one individual highlighted a notable decrease in chest pain after two months of consistent use (Read Review).
Furthermore, overall user sentiments indicate that many have observed positive effects on their chest pain relatively quickly, with some attributing their improved well-being after just a few weeks of use (Read Review). However, it is important to consider that individual responses may vary, and while some users experienced fast relief, others might take longer to notice the full benefits.
The evidence surrounding the use of eicosapentaenoic acid (EPA), an omega-3 fatty acid, for managing chest pain presents a complex picture. Research indicates that higher EPA levels may be associated with coronary spastic angina (CSA) in younger patients, suggesting that these fatty acids could play a role in the condition's pathophysiology [1]. Additionally, a study involving stable angina pectoris patients found that while EPA enhanced coronary plaque regression alongside statin therapy, it did not directly reduce the incidence of chest pain [2]. However, in trials involving emergency settings like acute myocardial infarction, the impact of EPA on chest pain was not conclusively proven, although some benefits for cardiac health were noted [3].
Furthermore, other studies highlighted EPA's effects on vasodilation and platelet function, pointing toward a potential reduction in chest pain associated with enhanced coronary responsiveness and lower thromboxane A2 levels, which are linked to vascular spasms [4][5]. Nonetheless, the evidence remains inconclusive; while trends suggest potential benefits, particularly in specific patient populations, more extensive research is necessary to firmly establish EPA's efficacy in alleviating chest pain [6][8]. Therefore, while EPA shows promise, its role in managing chest pain is still under investigation, and patients should approach supplementation with caution.
Based on user reviews, several individuals report notable improvements in symptoms, specifically regarding chest pain. One user, who had been dealing with chest pain post-accident, highlighted remarkable relief beginning on the very first day of taking the omega supplement (Read Review). Another user shared that after two months of consistent use, not only did their memory and focus improve, but they also noticed a significant decrease in chest pain, indicating that the supplement may contribute to broader health benefits (Read Review).
Others echoed similar experiences, with one report mentioning that the supplement provided quick relief for chest pain and improved joint and back pain as well (Read Review). Yet, it's essential to recognize that individual results can vary widely; while many users enjoyed fast relief and additional benefits from the supplement, not all experiences were positive, as seen in a review expressing dissatisfaction with their results concerning chest pain and the product itself (Read Review). Overall, many users have reported positive changes, although responses differ among individuals.
Based on user reviews, many individuals have reported positive experiences when combining this supplement with other health strategies for managing chest pain. Users have highlighted that the omega supplement is effective when taken consistently, with one user noting significant improvement in chest pain from the very first day of use (Read Review) and another mentioning improvements after two months of usage while also benefiting from memory enhancements (Read Review). Additionally, a user who intended to address eye health also enjoyed alleviation of joint pain alongside positive effects on chest pain, indicating that the supplement may offer multi-faceted health benefits (Read Review).
However, it is essential to note that not all users experienced satisfactory results. One reviewer expressed disappointment, highlighting that the product caused side effects and did not effectively help with their chest pain (Read Review). While many have praised the supplement's effectiveness alongside diet or other health improvements, individual reactions can vary significantly. Overall, users generally affirm combining the omega supplement with a broader health regimen may yield beneficial results for managing chest pain.
Based on user reviews, many individuals report positive outcomes from taking DHA supplements for chest pain relief. Specific dosing experiences vary; for instance, one user mentioned taking three capsules daily, one before each meal, which led to a significant decrease in their chest pain after two months of use Read Review. Another user indicated that they take 2 to 4 softgels daily with food, which also resulted in noticeable improvements in their chest pain over time Read Review.
Additionally, several users credited DHA not only with alleviating chest pain but also with providing benefits for conditions such as joint pain and memory enhancement Read Review, Read Review. However, it’s worth noting that one reviewer did not have a positive experience with a specific DHA product due to the size of the capsules and related digestive issues Read Review. Overall, users suggest that finding the right dosage and manufacturer is key to experiencing the desired benefits of DHA for chest pain.
9
Normalised heart function
After a car accident in 2016, I was advised to rest and avoid walking, which was challenging. I experienced chest pain whenever I exerted myself. However, after starting this omega supplement, I noticed significant improvements from day one. I’m now back to normal, thanks to this product.
7.5
Memory improvement
9 people found this helpful
DHA 500 (Omega 3) significantly helps my memory! I purchased this in July 2021, and it arrived promptly within 10 days without extra charges. I take three capsules daily, one before each meal. After using it for two months, I've experienced a notable enhancement in memory and focus during my studies and work, and my chest pain has also noticeably diminished.
9
Joint pain relief
5 people found this helpful
This product was recommended by my doctor, and after a few weeks, my joint and back pain vanished. It's beneficial for the brain, heart, and eyes as well. I believe its anti-inflammatory properties surpass any pharmaceutical alternatives. I wholeheartedly recommend it for anyone suffering from chest pain.
7.5
Effective for inflammation
4 people found this helpful
This is one of the best fish oil products I've encountered, and I highly recommend it. It works wonders for joint pain and inflammation, providing quick relief. I take 2 to 4 softgels daily, with food. My chest pain has improved significantly since starting this supplement.
0
Unpleasant side effects
I did not appreciate the omega from this manufacturer! The capsules are large and caused belching, bitterness, and abdominal pain. I recommend opting for a trusted manufacturer instead. My experience with chest pain was disappointing due to this product.
7.5
Joint pain alleviation
2 people found this helpful
I initially bought this for my eyes, but it has also helped alleviate the joint pain in my knee and shoulder. DHA seems to have a positive effect on my chest pain as well. I plan to continue using it given its benefits for brain health.
7
Eicosapentaenoic acid and chest pain
Role of polyunsaturated fatty acids in Japanese patients with coronary spastic angina.
We explored how eicosapentaenoic acid (EPA), a type of omega-3 fatty acid, might play a role in managing chest pain, particularly for those suffering from coronary spastic angina (CSA). In our study, we looked at 406 patients who underwent an ergonovine tolerance test during coronary angiography to diagnose CSA.
The patients were divided into two age groups: young individuals (65 years or younger) and elderly individuals (older than 66). We found that for younger patients who tested positive for CSA, their serum levels of EPA were significantly higher compared to those without CSA. Specifically, the levels of EPA were 64.3 μg/mL in the CSA-positive group versus 49.4 μg/mL in the CSA-negative group, and this difference was statistically significant. Furthermore, docosahexaenoic acid (DHA) levels also followed a similar pattern.
However, the same pattern did not hold for the elderly group, where the levels of these fatty acids did not show a clear relationship with CSA. Through our multivariate analysis, it became clear that higher levels of EPA and DHA were independently associated with CSA in younger patients, suggesting that these fatty acids may be influential in the pathophysiology of chest pain linked to CSA for this demographic.
Overall, while we demonstrated some intriguing links between EPA levels and chest pain in younger individuals, we found that these associations do not translate similarly for older adults.
7
Eicosapentaenoic acid aids plaque reduction
A randomized controlled trial of eicosapentaenoic acid in patients with coronary heart disease on statins.
We investigated whether adding eicosapentaenoic acid (EPA) to high-dose pitavastatin could enhance coronary plaque regression and help manage chest pain in patients with coronary heart disease (CHD). In a randomized controlled trial, 193 CHD patients who received percutaneous coronary intervention were divided into two groups: one received pitavastatin alone, while the other received both pitavastatin and EPA.
Over a period of 6 to 8 months, we observed that the combination of EPA and pitavastatin notably reduced coronary plaque volume compared to pitavastatin alone. This reduction was particularly significant for patients with stable angina pectoris (SAP), suggesting that EPA may have a more beneficial effect on chest pain in these patients.
However, despite the promising results for plaque reduction, the study did not report a direct decrease in the incidence of chest pain as a significant outcome measure. Overall, while EPA treatment appears to support coronary health and may be more effective for certain patients, the specific impact on chest pain requires further exploration.
8
Eicosapentaenoic acid’s effects inconclusive
Randomized, double-blind, placebo-controlled trial of fish oil and mustard oil in patients with suspected acute myocardial infarction: the Indian experiment of infarct survival--4.
We conducted a randomized, double-blind, placebo-controlled trial to assess how eicosapentaenoic acid, found in fish oil, might impact chest pain in patients experiencing suspected acute myocardial infarction (AMI). Over one year, we compared outcomes among groups taking fish oil, mustard oil, and a placebo, all starting treatment roughly 18 hours after symptoms appeared.
Our findings highlighted that both fish oil and mustard oil groups experienced fewer overall cardiac events compared to the placebo group. However, while we did observe reductions in nonfatal infarctions and total cardiac deaths within the fish oil group, there was no similar reduction in chest pain or direct measures of angina specifically linked to these treatments.
Interestingly, the study indicated that levels of cardiac arrhythmias and left ventricular enlargement were also reduced in those taking fish oil and mustard oil compared to those on a placebo. While we saw some improvements in overall cardiac health, the direct effects on chest pain from taking eicosapentaenoic acid were not conclusively established in this trial.
Ultimately, although fish oil shows promise in improving various heart-related outcomes, the specific impact on chest pain wasn't distinctly proven through our study results. Further extensive research will be essential to draw firmer conclusions.
7
Eicosapentaenoic acid showed mixed results
Improvement of coronary vasomotion with eicosapentaenoic acid does not inhibit acetylcholine-induced coronary vasospasm in patients with variant angina.
We examined how eicosapentaenoic acid (EPA), a key ingredient found in fish oil, impacts chest pain in patients with variant angina. Our study followed 22 individuals with this condition, where we infused acetylcholine, a substance known to cause coronary vasospasm, both before and after a four-month course of EPA treatment (1.8 g/day for 12 patients).
In the group that did not receive EPA, we observed no changes in how their coronary arteries responded to acetylcholine over time. However, for those treated with EPA, the results were quite intriguing. In non-spastic areas, the response shifted from vasoconstriction (narrowing) to vasodilation (widening). This indicates a notable improvement in how these arteries are functioning.
Yet, when it came to spastic sites where vasospasm had occurred, the coronary arteries remained responsive to acetylcholine, and the vasospasm persisted despite the EPA treatment. Thus, while EPA enhanced coronary responsiveness in some areas, it did not eliminate the acetylcholine-induced coronary vasospasms associated with variant angina.
8
Eicosapentaenoic acid may reduce chest pain
[Study of in vitro thromboxane A2 generation by platelets of patients with first-time appearing angina pectoris under the effect of fish diet].
We explored how an eicosapentaenoic acid (EPA)-rich diet influences the generation of thromboxane A2 (TxA2) in patients experiencing first-time angina pectoris. TxA2 plays a crucial role in promoting blood clotting and causing spasms of the blood vessels, both of which are key issues in coronary heart diseases.
Our study compared the effects of an EPA-rich diet with a standard hospital diet on the ability of platelets to generate TxA2 when stimulated by ADP. Among the 12 patients with first angina, those who adhered to the standard hospital diet showed the capacity to produce TxA2 under these conditions. Conversely, those who consumed the EPA-rich diet did not exhibit this same generation of TxA2.
The findings suggest that the fish-based diet rich in EPA may positively affect platelet aggregation. We observed a reduced potential for harmful TxA2 generation in the patients on the EPA-rich diet, indicating a possible lower risk for vascular spasms associated with angina.
In conclusion, while more research is needed to confirm these effects, the initial results reveal that incorporating EPA into the diet might help alleviate some risks associated with chest pain due to its impact on platelet behavior.
4
Fish oil effects on angina unclear
The effect of fish oil on lipids, coagulation and fibrinolysis in patients with angina pectoris.
We examined the effects of fish oil, particularly focusing on eicosapentaenoic acid, in patients with stable angina pectoris. In the study, participants first received a supplement of n-6 polyunsaturated fatty acids for four weeks. After this initial phase, they were randomly assigned to continue with the same oil or switch to fish oil, which included n-3 polyunsaturated fatty acids, for an additional 12 weeks.
Blood samples were collected before and after the 16 weeks of supplementation to look at changes in lipids, coagulation, and fibrinolysis. Although we found significant reductions in triglycerides and very low-density lipoproteins, we also saw an unexpected rise in total cholesterol levels from 5.9 to 6.7 mmol/L after taking fish oil.
It’s important to note that we observed a decrease in fibrinolytic activity at rest following the fish oil supplementation. Other measurements showed no statistically significant changes, which leads us to conclude that there isn't strong evidence to suggest that eicosapentaenoic acid directly alleviates chest pain in these patients. Therefore, we recommend caution with the uncontrolled use of fish oil supplements for patients experiencing stable angina pectoris.
8
Eicosapentaenoic acid shows potential
The long-term effect of dietary supplementation with fish lipid concentrate on serum lipids, bleeding time, platelets and angina.
We examined the impact of eicosapentaenoic acid—a key component in fish oil—on chest pain among 107 individuals over two years. Ninety-two of these participants had established heart disease or high cholesterol levels, while 15 did not have any history of heart problems.
Through this study, we found that serum triglyceride levels dropped quickly, suggesting a significant benefit for those dealing with high fat in the blood. While cholesterol levels decreased at a slower rate, intriguingly, the levels of good cholesterol (HDL) increased—often associated with better heart health.
Another notable finding was the lengthening of bleeding times and a reduced need for glyceryl trinitrate (GTN) tablets, which are often used to relieve angina attacks. This reduction in angina suggests that eicosapentaenoic acid might help alleviate chest pain by lowering the frequency of angina episodes and affecting platelet behavior, making them less likely to clump together.
However, it is essential to point out that while these changes promote heart health, this study did not compare the fish lipid concentrate with a placebo or an alternative treatment, leaving some of the isolated effects a little unclear. Overall, the trends observed are promising for heart disease management but should be interpreted with caution.
References
Tawara K, Akioka H, Sato H, Sato T, Takahashi M, et al. Role of polyunsaturated fatty acids in Japanese patients with coronary spastic angina. J Cardiol. 2023;82:455. 10.1016/j.jjcc.2023.07.001
Watanabe T, Ando K, Daidoji H, Otaki Y, Sugawara S, et al. A randomized controlled trial of eicosapentaenoic acid in patients with coronary heart disease on statins. J Cardiol. 2017;70:537. 10.1016/j.jjcc.2017.07.007
Singh RB, Niaz MA, Sharma JP, Kumar R, Rastogi V, et al. Randomized, double-blind, placebo-controlled trial of fish oil and mustard oil in patients with suspected acute myocardial infarction: the Indian experiment of infarct survival--4. Cardiovasc Drugs Ther. 1997;11:485.
Yamamoto H, Yoshimura H, Noma M, Suzuki S, Kai H, et al. Improvement of coronary vasomotion with eicosapentaenoic acid does not inhibit acetylcholine-induced coronary vasospasm in patients with variant angina. Jpn Circ J. 1995;59:608.
Zykova VP, Perova NV, Kalinkina OM. [Study of in vitro thromboxane A2 generation by platelets of patients with first-time appearing angina pectoris under the effect of fish diet]. Kardiologiia. 1990;30:24.
Schmidt EB, Kristensen SD, Dyerberg J. The effect of fish oil on lipids, coagulation and fibrinolysis in patients with angina pectoris. Artery. 1988;15:316.
Kondo T, Ogawa K, Satake T, Kitazawa M, Taki K, et al. Plasma-free eicosapentaenoic acid/arachidonic acid ratio: a possible new coronary risk factor. Clin Cardiol. 1986;9:413.
Saynor R, Verel D, Gillott T. The long-term effect of dietary supplementation with fish lipid concentrate on serum lipids, bleeding time, platelets and angina. Atherosclerosis. 1984;50:3.