Insights & Discussion
Long-term consumption of green tea can potentially lessen the risk of depression in postmenopausal women by decreasing inflammation and boosting estradiol levels.
In the study, researchers performed an analysis on a tea-producing village, incorporating 386 postmenopausal women in the investigation, who participated either as green tea consumers or non-drinkers (control group). The level of estradiol, inflammation markers, sleep quality, and depression symptoms were measured to uncover any correlations.
The results reflected significant disparities between the tea-drinking and control groups in terms of depression and insomnia levels, BMI, inflammation levels, and estradiol quantities. By appraising these outcomes, it was found that green tea intake could quell the likelihood of depression via its impact on sleep, inflammation, and estradiol levels. The risk of depression was consequently seen as reduced among postmenopausal women engaging in regular consumption of green tea.
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Green tea and its component EGCG, demonstrate potential as a treatment for endometriosis by inhibiting growth, invasion, adhesion and angiogenesis.
2021 Critical Reviews in Food Science and Nutrition Therapeutic effects of green tea on endometriosis Chen X, Man GCW, Hung SW, Zhang T, Fung LWY, Cheung CW, et al.
Review Article Anti-Inflammatory Antioxidant EGCG
The main research methodology of this work is a narrative review. The paper comprehensively collects and reviews various preclinical studies that propose the use of green tea as a potential treatment for endometriosis. These studies explore the diverse biological properties and activities of green tea and its major bioactive component, (-)-epigallocatechin gallate, including anti-angiogenic, anti-proliferation, anti-metastasis, and apoptosis induction functions. Different potential mechanisms used by green tea to inhibit the growth of endometriosis are considered, such as its effects on inflammation, oxidative stress, invasion, adhesion, and apoptosis.
The discussion of the reviewed data highlights the potential therapeutic effects of green tea acting on different molecular and cellular mechanisms in endometriosis. The researchers keenly discussed how green tea exhibited an inhibitory effect on the disease through multiple avenues, including reducing inflammation and oxidative stress, preventing tumor invasion and adhesion, promoting apoptosis (cell death), and limiting angiogenesis (the development of new blood vessels) - all these factors contribute to the growth and progression of endometriosis. The discussion elaborates on the significant roles and wider implications of these processes in understanding and potentially treating endometriosis.
Green tea therapy can significantly improve rheumatoid arthritis symptoms, correlating with changes in specific circulating serum molecules, miR-125b and miR-146a.
2021 Journal of Herbal Medicine Circulating microRNAs expression as predictors of clinical response in rheumatoid arthritis patients treated with green tea Al-Rawaf HA, Alghadir AH, Gabr SA
Clinical Study Anti-Inflammatory Antioxidant Green Tea
In this study, 100 female patients suffering from rheumatoid arthritis and 50 healthy female subjects were examined. Patients with rheumatoid arthritis underwent green tea therapy, where they consumed 5 cups of green tea daily, delivering a total of 1230 mg of catechins, over a span of 24 weeks. During this time, researchers used real-time PCR analysis to measure the levels of miR-146a and miR-125 b in the patients' peripheral blood mononuclear cells. These cells were isolated from the subjects at three distinct stages: the starting point (baseline), after 12 weeks, and finally after 24 weeks of the treatment.
The observations revealed a notable increase in the level of circulating miR-125 b and decrease in miR-146 expression, and these shifts were seen to correspond positively with measures of disease activity and pain intensity in the patients after 24 weeks of the green tea therapy. Also of note was that the levels of miR-146a and miR-125b could accurately predict the clinical response to green tea therapy in 65% of the rheumatoid arthritis patients. Discrepancies in miR-146a and miR-125b levels following green tea therapy suggests that they may be attributed to the joint protective, antioxidant, and anti-inflammatory effects of green tea. It was therefore proposed that both miR-146a and miR-125b could potentially serve as diagnostic, therapeutic, and predictive biomarkers in green tea therapy and may even have valuable application in related non-drug rheumatoid arthritis therapy.
Lavandula angustifolia essential oil inhalation seemed to enhance overall sleep patterns, quality, and efficiency in postmenopausal women with insomnia.
2021 Complementary Therapies in Medicine Lavender essential oil on postmenopausal women with insomnia: Double-blind randomized trial dos Reis Lucena L, dos Santos-Junior JG, Tufik S, Hachul H
Randomised Controlled Trial Insomnia Lavender Postmenopausal
Methodology: 35 postmenopausal women, clinically diagnosed with insomnia, were recruited and divided into two groups - an Aroma Group and a Placebo Group - for a double-blind, randomized controlled trial. Over 29 days, participants in the Placebo Group inhaled sunflower oil, while participants in the Aroma Group inhaled lavender oil. Both groups were given sleep hygiene guidelines before embarking on the trial and received follow-up on a weekly basis. Evaluations were performed both pre- and post-intervention.
Discussion of Results: No significant differences were noted between the two groups in terms of sleep quality. However, certain tendencies were observed. Aroma Group participants showed a noteworthy reduction in the time taken to fall asleep, depression levels and postmenopausal symptoms such as hot flashes. Moreover, polysomnography data showed increased sleep efficiency in comparison to initial levels. The improvement in sleep quality over time was observed in both groups, indicating that sleep hygiene instruction and weekly follow-ups played a significant role in influencing sleep patterns and quality.
Green tea and its compounds, especially catechins, may potentially prevent and treat osteoarthritis due to their potent antioxidant and anti-inflammatory properties.
2020 Longhua Chinese Medicine The possible role of green tea on osteoarthritis: a narrative report Barbalho SM, Goulart RA, Buglio DS, Araujo AC, Guiguer EL
Review Article Anti-Inflammatory Antioxidant Green Tea
The researchers performed an extensive review exploring the potential impact of green tea and its bioactive compounds, chiefly catechins, on osteoarthritis management. Their focus was on the anti-inflammatory and antioxidant abilities of these compounds. Based on the review, such compounds can quell inflammation by blocking various signaling pathways interconnected with inflammatory processes. Specifically, they have the potential to suppress the expression of several cytokines and enzymes related to inflammation.
In addition, green tea was noted for its property to neutralize free radicals, thus averting the formation of harmful reactive oxygen species and countering oxidative stress. While many conventional, non-surgical osteoarthritis therapies can lead to numerous adverse effects, the current review suggests that green tea could serve as a safer alternative. It may be a promising direction in the prevention and management of this chronic, painful, and inflammatory condition, which touches a significant number of people globally.
Catechin-rich green tea extract (GTE) exercised anti-inflammatory activities can be beneficial in managing Nonalcoholic fatty liver disease (NAFLD) by reducing liver injury and gut-derived endotoxins.
2020 The Journal of Nutritional Biochemistry Anti-inflammatory activities of green tea catechins along the gut–liver axis in nonalcoholic fatty liver disease: lessons learned from preclinical and human studies Hodges JK, Sasaki GY, Bruno RS
Review Article Anti-Inflammatory Green Tea Green Tea Catechin
The research is built around the study of the anti-inflammatory properties of catechin-rich green tea extract (GTE). The primary analytical interest is its effects on inflammatory responses that contribute to Nonalcoholic fatty liver disease (NAFLD), specifically nonalcoholic steatohepatitis (NASH). The extraction focuses on inhibiting the activation of the hepatic nuclear factor kappa-B, which is known to exacerbate liver injury.
The results have shown positive contributions of GTE to management of NAFLD. Itn was observed that the extract limits the activation of the hepatic nuclear factor kappa-B and in turn, reduces NASH-associated liver injury. Additionally, green tea extract was found to contain hepatic-level benefits that attenuate intracellular redox distress and pro-inflammatory signaling. It was also found to improve the gut barrier function, limit the translocation of gut-derived endotoxins, and exercise prebiotic and antimicrobial effects on the gut microbial ecosystem. These results can potentially contribute to managing NAFLD-associated morbidity.
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