L-theanine abates oxidative stress and mitochondrial dysfunction in myocardial ischemia-reperfusion injury by positively regulating the antioxidant response.
We examined the effects of L-theanine, a natural amino acid, on heart health during a condition known as ischemia-reperfusion (I/R) injury. In our study with rats, we found that L-theanine significantly improved heart function after I/R stress. It reduced oxidative damage and preserved mitochondrial health, indicating that it promotes antioxidant defenses in cardiac tissue. By enhancing the activity of important antioxidant enzymes and adjusting gene expression, L-theanine appears to provide vital protection against heart injury. However, further research is required to solidify L-theanine's role in heart disease treatment.
Read More
9
Impact of l-theanine on heart health
l-Theanine attenuates neointimal hyperplasia via suppression of vascular smooth muscle cell phenotypic modulation.
We investigated how l-theanine, found in green tea, affects neointimal hyperplasia, a key issue during heart stent procedures. Our research used a rat model to assess its impact, revealing that l-theanine significantly reduced neointimal formation and inhibited harmful changes in vascular smooth muscle cells.
In laboratory tests, l-theanine effectively curtailed cell growth and mobility related to heart disease, showing promise as a potential treatment. This study highlights l-theanine's role in improving vascular health and suggests it could be a beneficial option for heart disease management.
Read More
8
L-theanine mitigates heart injury
L-theanine alleviates myocardial ischemia/reperfusion injury by suppressing oxidative stress and apoptosis through activation of the JAK2/STAT3 pathway in mice.
We investigated how L-theanine, an amino acid found in tea, can help protect the heart from damage caused by restricted blood flow and subsequent restoration, known as myocardial ischemia-reperfusion injury (MIRI).
Our research on mice showed that L-theanine reduces harmful oxidative stress and cell death in heart tissue, largely through a specific signaling pathway called JAK2/STAT3.
While results are promising, it highlights a potential direction for developing treatments to safeguard heart health, but further studies are needed to confirm its effectiveness in humans.
Read More
Most Useful Reviews
9
Anxiety alleviation
1 people found this helpful
L-theanine has greatly helped with my anxiety. Previously, my heart would race uncontrollably in stressful situations, but now I feel much calmer and can approach my day without that constant stress.
Read More
9
Calmer responses
1 people found this helpful
I enjoy a cup of coffee with an L-theanine capsule each morning. This combination significantly reduces my jitters and heart palpitations while enhancing my mood and clarity.
Read More
9
Blood pressure normalisation
1 people found this helpful
As I manage a stressful job, taking this product with magnesium at night has normalised my blood pressure and heart health during check-ups.
L-theanine abates oxidative stress and mitochondrial dysfunction in myocardial ischemia-reperfusion injury by positively regulating the antioxidant response.
We examined the effects of L-theanine, a natural amino acid, on heart health during a condition known as ischemia-reperfusion (I/R) injury. In our study with rats, we found that L-theanine significantly improved heart function after I/R stress. It reduced oxidative damage and preserved mitochondrial health, indicating that it promotes antioxidant defenses in cardiac tissue. By enhancing the activity of important antioxidant enzymes and adjusting gene expression, L-theanine appears to provide vital protection against heart injury. However, further research is required to solidify L-theanine's role in heart disease treatment.
Read More
9
Impact of l-theanine on heart health
l-Theanine attenuates neointimal hyperplasia via suppression of vascular smooth muscle cell phenotypic modulation.
We investigated how l-theanine, found in green tea, affects neointimal hyperplasia, a key issue during heart stent procedures. Our research used a rat model to assess its impact, revealing that l-theanine significantly reduced neointimal formation and inhibited harmful changes in vascular smooth muscle cells.
In laboratory tests, l-theanine effectively curtailed cell growth and mobility related to heart disease, showing promise as a potential treatment. This study highlights l-theanine's role in improving vascular health and suggests it could be a beneficial option for heart disease management.
Read More
9
Inositol counters lithium heart damage
Oral supplementation of inositols effectively recovered lithium-induced cardiac dysfunctions in mice.
Our study aimed to understand how inositol supplementation could help combat heart issues caused by lithium in mice. We examined four groups of C57BL6 mice, some of which received lithium for eight weeks, while others either received inositol during or after the lithium treatment. We specifically looked at various heart functions, structures, and how the heart cells responded to stress.
We found that inositol has a significant protective effect on the heart. Mice that received inositol, either during or after lithium exposure, showed improvements in heart size, function, and electrical stability. For example, the inositol group had reduced heart cell swelling and better performance during stress tests. Overall, these findings suggest that inositol could serve as a beneficial strategy for managing lithium-induced cardiac issues.
Furthermore, the inositol treatment appeared to reverse changes associated with heart muscle enlargement and helped stabilize the expression of certain proteins critical for heart function. In contrast, untreated mice displayed increased cardiac dysfunction and other organ issues. Overall, the study underscores inositol's promise as a potential treatment for heart-related side effects arising from lithium use.
Read More
8
L-theanine mitigates heart injury
L-theanine alleviates myocardial ischemia/reperfusion injury by suppressing oxidative stress and apoptosis through activation of the JAK2/STAT3 pathway in mice.
We investigated how L-theanine, an amino acid found in tea, can help protect the heart from damage caused by restricted blood flow and subsequent restoration, known as myocardial ischemia-reperfusion injury (MIRI).
Our research on mice showed that L-theanine reduces harmful oxidative stress and cell death in heart tissue, largely through a specific signaling pathway called JAK2/STAT3.
While results are promising, it highlights a potential direction for developing treatments to safeguard heart health, but further studies are needed to confirm its effectiveness in humans.
Read More
8
ITPP shows promise in heart health
Myo-inositol trispyrophosphate prevents right ventricular failure and improves survival in monocrotaline-induced pulmonary hypertension in the rat.
We explored the effects of myo-inositol trispyrophosphate (ITPP) on heart disease, particularly in the context of pulmonary hypertension (PH). The study involved injecting rats with monocrotaline, which induces PH, and then administering either ITPP or a placebo over five weeks. Through careful monitoring techniques, including echocardiograms and pressure-volume loops, we aimed to see whether ITPP could alleviate the negative impacts of PH on the heart.
Our findings revealed that ITPP indeed reduced mortality associated with PH. While it didn't change the rise in pulmonary vascular resistance, it significantly improved heart function by relieving hypoxia in the right ventricle (RV). This relief was tied to a decrease in RV wall stress, enhancing the heart’s ability to pump effectively under strain. Additionally, we noted that ITPP may help prevent some changes associated with oxygen deprivation, although it did not affect capillary density in the heart.
The implications of our research suggest that enhancing oxygen delivery to the right ventricle could be a valuable addition to existing treatments for PH. ITPP stands out as a promising candidate that could help the heart better manage the increased pressure it faces in these conditions, ultimately improving survival rates.
L-theanine has greatly helped with my anxiety. Previously, my heart would race uncontrollably in stressful situations, but now I feel much calmer and can approach my day without that constant stress.
Read More
9
Calmer responses
1 people found this helpful
I enjoy a cup of coffee with an L-theanine capsule each morning. This combination significantly reduces my jitters and heart palpitations while enhancing my mood and clarity.
Read More
9
Blood pressure normalisation
1 people found this helpful
As I manage a stressful job, taking this product with magnesium at night has normalised my blood pressure and heart health during check-ups.
Read More
0
Heart palpitations risk
1 people found this helpful
I experienced severe ectopic heartbeats and rapid heart rate after taking the recommended 200mg dose for a week. It was frightening, and I nearly went to the hospital until I realised what was causing it. I found many accounts online of others having the same reaction. I believe there should be a warning on the bottle about the risks related to heart disease. I will not use it again.
Read More
0
Anxiety increase
It caused me anxiety and heart palpitations. I won't purchase it again.
Heart disease refers to a range of conditions that affect the heart's function and overall health. This umbrella term includes various cardiovascular issues such as coronary artery disease, which is caused by the buildup of plaque in the arteries; heart rhythm problems (arrhythmias); and heart defects present at birth (congenital heart defects). Additionally, heart disease encompasses conditions related to the heart muscle, such as cardiomyopathy, and the heart's valves, which might not open or close properly. The effects of heart disease can be significant, impacting not only physical health but also quality of life, making prevention and timely medical intervention crucial.
Several risk factors contribute to the development of heart disease, including high blood pressure, high cholesterol levels, diabetes, obesity, poor diet, physical inactivity, and smoking. Genetics also play a role, as heart disease can run in families. To mitigate the risks, healthcare professionals typically recommend lifestyle changes such as adopting a heart-healthy diet, engaging in regular physical activity, and avoiding tobacco use. For those already diagnosed with heart disease, treatment options can vary widely, ranging from lifestyle modifications to medications and, in severe cases, surgical interventions. Understanding the nature of heart disease and its risk factors is an essential step toward prevention and effective management.
L-theanine is a naturally occurring amino acid most commonly found in tea leaves, particularly green tea, and is known for its potential calming effects. While caffeine can lead to increased alertness and focus, L-theanine promotes relaxation without causing drowsiness, making it a popular supplement among those seeking to enhance their mental performance while also managing stress. It is believed to work by influencing the production of neurotransmitters, such as serotonin and dopamine, which can positively affect mood and cognitive function.
Many users report that L-theanine may enhance the benefits of caffeine, leading to improved focus and reduced feelings of jitteriness when consumed together. This unique combination is often sought after by students and professionals during periods of intense concentration or study. As a dietary supplement, L-theanine is available in various forms, including capsules, powders, and tea, allowing individuals to choose the method that best fits their lifestyle. Typically, dosages range from 100 to 400 mg per day, depending on the intended effects and individual tolerance.
Users generally report noticing benefits from L-theanine within a few days to weeks of starting the supplement. For instance, one user mentioned a remarkable decrease in their historically high pulse rate within just two days of usage Read Review. Another user highlighted experiencing significant anxiety reduction and improved focus after just one week Read Review. This suggests that, while individual responses may vary, many users can expect to see some level of improvement fairly quickly.
However, it’s important to note that not everyone has had a positive experience. Some users have reported adverse reactions such as increased heart palpitations, which underscores the importance of consulting a healthcare provider before beginning supplementation, especially for those with existing heart conditions Read Review. In summary, while many users observe beneficial effects within a week or two, individual experiences can significantly differ.
L-theanine has shown potential in offering heart protection according to various studies. Research indicates that L-theanine can mitigate damage caused by myocardial ischemia-reperfusion injury, as observed in mouse models. It works by reducing oxidative stress and cell death in cardiac tissue, primarily through the JAK2/STAT3 signaling pathway, suggesting that it could be a valuable component in developing heart disease treatments [1]. Another study highlights its ability to improve heart function during ischemia-reperfusion stress in rats, indicating that L-theanine may help enhance mitochondrial health and antioxidant defenses in heart tissue [2].
Additionally, findings related to inositol supplementation also depict a strong link between these compounds and heart health. Studies have suggested that inositol can improve heart function and stabilize heart cells under stress, as seen in mice treated with lithium [4]. Moreover, the influence of myo-inositol trispyrophosphate in ameliorating heart function, especially concerning pulmonary hypertension, underscores the potential of inositol-based treatments for heart disease [5]. Given these findings, both L-theanine and inositol present promising avenues for heart disease management but require further research to solidify their efficacy in humans.
Based on user reviews, many individuals report significant improvements in symptoms related to anxiety and heart health after incorporating L-theanine into their routines. For example, one user experienced a remarkable drop in their historically high pulse rate to a calm 75-85 beats per minute within just two days, noting that it brought them a peaceful state of mind after a personal loss Read Review. Others have reported feeling calmer in stressful situations, with one user stating that the supplement allowed them to approach everyday tasks without the constant burden of stress Read Review. Additionally, several users noted enhanced mood and mental clarity when combining L-theanine with other elements like coffee Read Review.
However, it's essential to recognize that individual reactions to L-theanine can vary widely. Some users have reported adverse effects, including increased heart palpitations and anxiety, prompting them to cease use Read Review. Others experienced side effects that hindered their ability to concentrate Read Review. While many report feeling calmer and more in control with L-theanine, it’s advisable for prospective users to consult with a healthcare provider, especially if they have preexisting conditions.
Based on user reviews, many individuals who combine L-theanine with other supplements report various benefits, particularly for managing heart health. One user mentioned that pairing L-theanine with magnesium at night helped normalize their blood pressure during check-ups, contributing to improved heart health Read Review. Another review highlighted the positive effects of combining L-theanine with bacopa, resulting in better sleep quality and normalized pulse rates Read Review. Additionally, users who take L-theanine alongside coffee report significant mood enhancement, reduced jitters, and less frequent heart palpitations Read Review.
Conversely, some users experienced adverse effects when using L-theanine, such as increased heart palpitations and anxiety Read Review. These concerns highlight the importance of careful monitoring when combining supplements, particularly for those with pre-existing heart conditions. Overall, while many users note beneficial interactions between L-theanine and other supplements for heart health, they stress the need for individualized approaches and consultation with healthcare providers to ensure safety Read Review.
Based on user reviews, experiences with L-theanine for heart disease reveal a complex picture regarding dosage. Some users report positive effects on anxiety, heart palpitations, and blood pressure when taking L-theanine, particularly in conjunction with other supplements like magnesium Read Review. Others mention a decrease in unwanted symptoms such as racing heart rates and stress responses, which contributes to better heart health Read Review. However, a notable concern arises from users who experienced adverse reactions, including severe heart palpitations and anxiety after taking a higher dose of 200mg. This distressing experience has led some users to conclude that such doses might pose risks for those with existing heart conditions and advocate for clearer warnings on the products Read Review.
In general, while many users appreciate the calming effects of L-theanine and find it beneficial for managing stress and supporting heart health, there is no consensus on the ideal dose. Many individuals suggest starting with lower doses and monitoring personal reactions closely, especially if there are pre-existing heart issues. Users often mention taking L-theanine alongside other supplements or dividing their doses throughout the day to minimize side effects and enhance efficacy Read Review. Overall, individuals considering L-theanine for heart disease management should consult healthcare providers to tailor their dosing appropriately.
7.5
Miraculous pulse reduction
12 people found this helpful
After my mother's passing, I sought something soothing and settled on L-theanine. Its calming effects have been wonderful. Also, it remarkably reduced my historically high pulse rate down to 75-85 within two days. I encourage others facing similar issues to give it a try.
7.5
Reduced anxiety
After taking L-theanine for a week, I've experienced a reduction in anxiety and improved focus without daytime drowsiness, positively impacting my heart health.
0
Heart palpitations risk
1 people found this helpful
I experienced severe ectopic heartbeats and rapid heart rate after taking the recommended 200mg dose for a week. It was frightening, and I nearly went to the hospital until I realised what was causing it. I found many accounts online of others having the same reaction. I believe there should be a warning on the bottle about the risks related to heart disease. I will not use it again.
9
Anxiety alleviation
1 people found this helpful
L-theanine has greatly helped with my anxiety. Previously, my heart would race uncontrollably in stressful situations, but now I feel much calmer and can approach my day without that constant stress.
9
Calmer responses
1 people found this helpful
I enjoy a cup of coffee with an L-theanine capsule each morning. This combination significantly reduces my jitters and heart palpitations while enhancing my mood and clarity.
0
Unpleasant effects
1 people found this helpful
It's not suitable for me. My head hurts, and my heart is pounding, making it difficult to concentrate. I advise against it for those sensitive to heart disease.
9
Blood pressure normalisation
1 people found this helpful
As I manage a stressful job, taking this product with magnesium at night has normalised my blood pressure and heart health during check-ups.
9
Sleep improvement
I've noticed better sleep quality and normalised pulse rates since taking L-theanine with bacopa at night; it really calms my heart.
9
Calms heart palpitations
4 people found this helpful
L-theanine effectively calms the heart palpitations I experience due to stress and mood swings. It has become a vital aid in managing my emotional state, and I regard it as a helpful remedy.
7.5
Calming effect
When feeling irritable, depressed, particularly with pounding heart or anxiety, I find this helps me feel calm. I divide the dose between morning and afternoon meals and sometimes take it with coffee.
8
L-theanine mitigates heart injury
L-theanine alleviates myocardial ischemia/reperfusion injury by suppressing oxidative stress and apoptosis through activation of the JAK2/STAT3 pathway in mice.
We investigated how L-theanine, an amino acid found in tea, can help protect the heart from damage caused by restricted blood flow and subsequent restoration, known as myocardial ischemia-reperfusion injury (MIRI).
Our research on mice showed that L-theanine reduces harmful oxidative stress and cell death in heart tissue, largely through a specific signaling pathway called JAK2/STAT3.
While results are promising, it highlights a potential direction for developing treatments to safeguard heart health, but further studies are needed to confirm its effectiveness in humans.
9.5
L-theanine shows heart protection
L-theanine abates oxidative stress and mitochondrial dysfunction in myocardial ischemia-reperfusion injury by positively regulating the antioxidant response.
We examined the effects of L-theanine, a natural amino acid, on heart health during a condition known as ischemia-reperfusion (I/R) injury. In our study with rats, we found that L-theanine significantly improved heart function after I/R stress. It reduced oxidative damage and preserved mitochondrial health, indicating that it promotes antioxidant defenses in cardiac tissue. By enhancing the activity of important antioxidant enzymes and adjusting gene expression, L-theanine appears to provide vital protection against heart injury. However, further research is required to solidify L-theanine's role in heart disease treatment.
9
Inositol counters lithium heart damage
Oral supplementation of inositols effectively recovered lithium-induced cardiac dysfunctions in mice.
Our study aimed to understand how inositol supplementation could help combat heart issues caused by lithium in mice. We examined four groups of C57BL6 mice, some of which received lithium for eight weeks, while others either received inositol during or after the lithium treatment. We specifically looked at various heart functions, structures, and how the heart cells responded to stress.
We found that inositol has a significant protective effect on the heart. Mice that received inositol, either during or after lithium exposure, showed improvements in heart size, function, and electrical stability. For example, the inositol group had reduced heart cell swelling and better performance during stress tests. Overall, these findings suggest that inositol could serve as a beneficial strategy for managing lithium-induced cardiac issues.
Furthermore, the inositol treatment appeared to reverse changes associated with heart muscle enlargement and helped stabilize the expression of certain proteins critical for heart function. In contrast, untreated mice displayed increased cardiac dysfunction and other organ issues. Overall, the study underscores inositol's promise as a potential treatment for heart-related side effects arising from lithium use.
8
ITPP shows promise in heart health
Myo-inositol trispyrophosphate prevents right ventricular failure and improves survival in monocrotaline-induced pulmonary hypertension in the rat.
We explored the effects of myo-inositol trispyrophosphate (ITPP) on heart disease, particularly in the context of pulmonary hypertension (PH). The study involved injecting rats with monocrotaline, which induces PH, and then administering either ITPP or a placebo over five weeks. Through careful monitoring techniques, including echocardiograms and pressure-volume loops, we aimed to see whether ITPP could alleviate the negative impacts of PH on the heart.
Our findings revealed that ITPP indeed reduced mortality associated with PH. While it didn't change the rise in pulmonary vascular resistance, it significantly improved heart function by relieving hypoxia in the right ventricle (RV). This relief was tied to a decrease in RV wall stress, enhancing the heart’s ability to pump effectively under strain. Additionally, we noted that ITPP may help prevent some changes associated with oxygen deprivation, although it did not affect capillary density in the heart.
The implications of our research suggest that enhancing oxygen delivery to the right ventricle could be a valuable addition to existing treatments for PH. ITPP stands out as a promising candidate that could help the heart better manage the increased pressure it faces in these conditions, ultimately improving survival rates.
References
Li Q, Ding J, Xia B, Liu K, Zheng K, et al. L-theanine alleviates myocardial ischemia/reperfusion injury by suppressing oxidative stress and apoptosis through activation of the JAK2/STAT3 pathway in mice. Mol Med. 2024;30:98. doi:10.1186/s10020-024-00865-0
García-Niño WR, Correa F, Zúñiga-Muñoz AM, José-Rodríguez A, Castañeda-Gómez P, et al. L-theanine abates oxidative stress and mitochondrial dysfunction in myocardial ischemia-reperfusion injury by positively regulating the antioxidant response. Toxicol Appl Pharmacol. 2024;486:116940. doi:10.1016/j.taap.2024.116940
Bi A, Hang Q, Huang Y, Zheng S, Bi X, et al. l-Theanine attenuates neointimal hyperplasia via suppression of vascular smooth muscle cell phenotypic modulation. J Nutr Biochem. 2020;82:108398. doi:10.1016/j.jnutbio.2020.108398
L'Abbate S, Nicolini G, Forini F, Lepore E, Marchetti S, et al. Oral supplementation of inositols effectively recovered lithium-induced cardiac dysfunctions in mice. Biomed Pharmacother. 2024;178:117287. doi:10.1016/j.biopha.2024.117287
Oknińska M, Paterek A, Grzanka M, Zajda K, Surzykiewicz M, et al. Myo-inositol trispyrophosphate prevents right ventricular failure and improves survival in monocrotaline-induced pulmonary hypertension in the rat. Br J Pharmacol. 2024;181:4050. doi:10.1111/bph.16482
Fu L, Du J, Furkert D, Shipton ML, Liu X, et al. Depleting inositol pyrophosphate 5-InsP7 protected the heart against ischaemia-reperfusion injury by elevating plasma adiponectin. Cardiovasc Res. 2024;120:954. doi:10.1093/cvr/cvae017