Insights & Discussion
Green tea, coffee, wine, and curry have beneficial health effects due to the polyphenols they contain, which possess both antioxidant and pro-oxidant properties.
The research leverages epidemiological studies, clinical trials, cell-based studies and animal tests to examine the effects of green tea, coffee, wine, and curry -- and their key polyphenols -- on human health. The polyphenols investigated include epigallocatechin gallate in green tea, chlorogenic acid in coffee, resveratrol in wine, and curcumin in curry. The study concentrates on the workings of these polyphenols, primarily focusing on reactive oxygen species (ROS), and how they perform both anti- and pro-oxidant functions, fundamentally influencing different enzymes and factors with health contributions.
In the discussion of the results, it is mentioned that the anti-oxidative actions of these polyphenols assist in the scavenging of ROS and the downregulation of the nuclear factor-κB, yielding beneficial anti-inflammatory effects. Conversely, their pro-oxidant actions appear to elevate ROS production, encouraging the activation of 5'-AMP-activated protein kinase that regulates different enzymes and factors for health improvement. However, the exact mechanism of how these polyphenols exhibit either pro- or anti-oxidant effects remains unclear. Also, the research underscores that while many studies note their health benefits, some others show no positive effects on health conditions such as obesity, suggesting that outcomes could be influenced by various study factors.
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Pumpkin seeds are recognised for their medicinal, nutritional, and cosmetic benefits, including anti-diabetic, heart disease prevention, anti-cancer, and antioxidant qualities.
2024 The Natural Products Journal Pumpkin Seeds (Cucurbita spp.) as a Nutraceutical Used In Various Lifestyle Disorders Wal A, Singh MR, Gupta A, Rathore S, Rout RR, Wal P
Review Article Anti-Parasite Anticancer Antioxidant
The review article undertakes a comprehensive exploration of the nutraceutical importance of pumpkin seeds. The methodology includes an examination of the various known substances in the seeds, such as phytoestrogens, unsaturated fatty acids, and vitamin E. The study then delves into the different benefits and therapeutic uses of these components stretching from medicinal to nutritional to cosmetic applications.
The results of this research are diverse and impressive, with implications for several major health sectors. Their potential anti-diabetic and hypoglycemic properties could suggest a significant role in the management and prevention of diabetes. Meanwhile, the seeds' potential in cardiovascular disease prevention could help to address one of the most pressing global health issues. Moreover, potential anti-cancer properties imply that these seeds could even have a part to play in cancer prevention. The review also described potential additional qualities, such as antidepressant, anti-helminthic (parasite-removing), and antioxidant effects.
Carrots, rich in carotenoids, flavonoids, and vitamins, have numerous health benefits including antioxidants, immune enhancement, and anti-cancer properties.
2022 International Journal of Innovative Research in Engineering & Management An Analysis of Health Benefits of Carrot Varshney K, Mishra K
Review Article Antioxidant Carrot Health Benefits
The paper provides an insightful review of carrots and their biochemical properties and wide-ranging health benefits. It presents carrots as a tuber crop rich in elements like carotenoids, vitamins, and soluble fiber, which contribute to their wellness properties. The consumption of carrots is increasing owing to their recognized value as a natural source of antioxidants with anti-cancer properties.
The review also discusses the various uses of carrots and its by-products, carrot pomace, in food processing to boost the nutritional content of various products. The carrots are used in diverse culinary preparations from salads & curries to nutritionally rich processed goods like juices, dry powder, candy, pickle, and gazrailla. Furthermore, carrot pomace which is abundant in beta-carotene is used to improve products such as bakery goods and also to create a range of useful products.
Green tea's catechins demonstrate therapeutic effects against neurodegenerative diseases via anti-inflammatory, antioxidant actions, and activating diverse brain cellular pathways.
2022 Molecules Green Tea Catechins Attenuate Neurodegenerative Diseases and Cognitive Deficits Afzal O, Dalhat MH, Altamimi ASA, Rasool R, Alzarea SI, Almalki WH, et al.
Review Article Alzheimer's Disease Cognitive Function Green Tea
The research primarily evaluates the effect of polyphenolic compounds found in green tea, known as catechins, on neurodegenerative diseases. By conducting several interventional and observational studies on humans, the research explores the anti-cancer, anti-obesity, antidiabetic, anti-inflammatory, and neuroprotective properties of these compounds. The biological, pharmacological, antioxidant, and metal chelating abilities of catechins, particularly their influence on different cellular pathways within the brain, are intensively studied.
The results elucidate that catechins exhibit multiple neuroprotective effects. Their anti-inflammatory and antioxidant properties help to inhibit excessive production of cytokines, and inflammatory pathways, while also controlling metal ions and free radicals. Researchers have further established that catechins may curb the phosphorylation of the tau protein and aggregation of amyloid beta, both key markers in neurodegenerative diseases. Additionally, these compounds show potential in reducing alpha-synuclein levels and augmenting dopamine levels. Hence, they significantly contribute to the prevention and treatment of neurodegenerative diseases, including Alzheimer's, Parkinson's, multiple sclerosis, and cognitive deficits.
Compounds found in green tea, especially EGCG, show significant anti-cancer activity and hold promise as potential anticancer drugs or adjuvants to standard chemotherapy.
2022 International Journal of Molecular Sciences Green Tea Catechins: Nature’s Way of Preventing and Treating Cancer Farhan M
Review Article Anticancer Cancer EGCG
The study used a combination of epidemiological and laboratory studies to examine the effects of catechins in green tea on combating cancer. The researchers focused their attention on the four main catechin derivatives found in green tea: epicatechin, epigallocatechin, epicatechin gallate, and epigallocatechin gallate—the latter found to be most potent. Attention was given to the quantity of hydroxyl groups and the presence of certain structural groups in these compounds, and how these factors affected antioxidant activity.
The study centered around the effects of catechins on tumor survival, proliferation, invasion, angiogenesis, and metastasis. By doing this, the researchers could observe the influence of the identified compounds on the various processes that lead to the development and spread of cancer. The main point of observation was the capacity of catechins to neutralize reactive oxygen species, a key facet in their anti-cancer activity.
The jujube tree bears fruit endowed with substantial nutritional value and contains numerous phytochemical components with reported antioxidant, anti-cancer and neuroprotective properties.
2022 Traditional Medicine Research Jujube (Ziziphus jujuba Mill. (Rhamnaceae)): a review on its pharmacological properties and phytochemistry Aafi E, Reza M, Mirabzadeh M
Theoretical Article Anticancer Antioxidant Neuroprotective
The research implemented an analysis of the jujube tree, its fruit, and its long history of usage in traditional medicine, focusing primarily on its use in traditional Persian and Chinese medicines. The varied geographical distribution of the tree was studied, especially its presence in tropical and subtropical regions across Europe and Asia. Researchers took into account the tree’s resilience to soil salinity and alkalinity as part of its general characteristics.
The core of the study involved an in-depth investigation into the nutritional composition and pharmacological properties of the jujube fruit. The fruit's contents were categorized into proteins, minerals, vitamins, organic acids, and carbohydrates. Furthermore, a range of phytochemical components such as polyphenols, flavonoids, terpenoids, anthocyanins, alkaloids, and carotenoids were identified.
Research noted both the fruit's nutraceutical and cosmeceutical potential. It also explored the medicinal properties of all elements of the plant, not just the fruit.
The physiological impacts of the jujube were also evaluated across various medical contexts, seeking to understand its impact on different organs and tissues, as well as its influence on various health conditions and concerns. Culminating in the identification of antioxidant, anti-cancer, antimicrobial, neuroprotective, cardioprotective, hepatoprotective properties. Noteworthy, are also its health-promoting effects, with strong references to anti-aging properties.
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