Artichoke Extract - NutraPedia
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Artichoke Extract Information
1) Conditions Studied
Artichoke extract has been studied for the following conditions:
- Dyspepsia (indigestion)
- High cholesterol levels
- Irritable Bowel Syndrome (IBS)
- Non-alcoholic fatty liver disease
2) Efficacy in Treating Conditions
Regarding the treatment of these conditions, the efficacy of artichoke extract is as follows:
- It may help relieve symptoms of indigestion and improve digestive health.
- Studies suggest a potential in reducing cholesterol levels, but further research is needed.
- There is limited evidence for its effectiveness in managing IBS symptoms.
- Some studies indicate a possible benefit for liver health, particularly in non-alcoholic fatty liver disease.
3) Health Benefits
Artichoke extract is associated with several health benefits:
- Potential to lower LDL ("bad") cholesterol and increase HDL ("good") cholesterol.
- May aid in digestion and reduce symptoms of indigestion.
- Contains antioxidants which may protect against oxidative stress and inflammation.
- Could have a protective effect on the liver.
4) Downsides
While artichoke extract is generally considered safe, it does have some potential downsides:
- May cause allergic reactions in individuals sensitive to plants in the Asteraceae/Compositae family.
- Can lead to gastrointestinal side effects such as gas, upset stomach, and diarrhea.
- Those with bile duct obstruction should avoid it as it can stimulate bile flow.
- May interact with certain medications, such as cholesterol-lowering drugs and diuretics.
5) Genetic Variations
Regarding genetic variations, there is some evidence that:
- Individuals with certain genetic profiles may metabolize artichoke extract differently, affecting its efficacy.
- Specific genetic liver conditions could influence how well artichoke extract is tolerated or its potential liver-protective effects.
- More research is needed to conclusively determine the relationship between genetic variations and the effects of artichoke extract.
Artichoke Leaf Extract Research Highlights
Effects on Bile Production
Artichoke leaf extract (ALE) has been shown to significantly increase bile flow and the concentration of total bile acids in rats, comparable to the choleretic activity of dehydrocholic acid (DHCA), without affecting cholesterol and phospholipid levels in bile.
Hyperuricemia and Gout Treatment Potential
Despite in vitro inhibition of xanthine oxidase (XO) by ALE, oral administration in rats did not reduce uric acid levels, although intraperitoneal injection of luteolin lowered uric acid, suggesting that metabolic processes in the gut may impact effectiveness.
Cardiovascular Benefits
Artichoke leaf extract and its organic subfraction increased the activity and expression of endothelial nitric-oxide synthase (eNOS) in human endothelial cells, leading to higher nitric oxide production and improved vasodilation, with flavonoids like luteolin being the active compounds.
Antidiabetic Properties
Several plants, including artichokes, are used traditionally in Rio Grande do Sul, Brazil, to treat diabetes, with some species like Bauhinia forficata and Syzygium cumini showing promising antidiabetic activity in scientific studies.
Nutraceutical Potential
Artichokes, particularly the "Violet de Provence" variety, contain high levels of polyphenols such as caffeoylquinic acids and flavonoids, suggesting their potential for broader pharmaceutical use due to their health-promoting properties.
Prebiotic Effects
A very-long-chain inulin extracted from globe artichoke significantly promoted the growth of beneficial gut bacteria like bifidobacteria and lactobacilli in healthy adults, with a substantial prebiotic effect and minimal gastrointestinal issues.
Mineral Content
The mineral profile of globe artichokes is influenced by genotype, plant part, location, and season, with some genotypes showing high levels of both macro- and micro-minerals, highlighting the plant's nutritional benefits.
Cholesterol Management
Artichoke leaf extract has been demonstrated to effectively reduce plasma cholesterol levels in various animal models and human trials, potentially enhancing the excretion of fecal bile acids and neutral sterols, and improving endothelial function in individuals with high cholesterol.
Antioxidant Properties
Artichoke extract protects against oxidative stress and DNA damage in human cells and has been shown to slow down LDL oxidation, which is important for preventing cardiovascular diseases.
Chemopreventive Treatment for Breast Cancer
Polyphenolic extracts from artichokes decreased the viability and growth of breast cancer cells and induced apoptosis, suggesting potential as a chemopreventive treatment.
References:
- Choleretic activity and biliary elimination of lipids and bile acids induced by an artichoke leaf extract in rats
- Flavonoids of Cynara scolymus possess potent xanthinoxidase inhibitory activity in vitro but are devoid of hypouricemic effects in rats after oral application
- Plants used as antidiabetics in popular medicine in Rio Grande do Sul, southern Brazil
- Polyphenol compounds in artichoke plant tissues and varieties
- Flavonoids from artichoke (Cynara scolymus L.) up-regulate endothelial-type nitric-oxide synthase gene expression in human endothelial cells
- Determination of the hydroxycinnamate profile of 12 members of the Asteraceae family
- Investigation of lipids profiles of Nigella, lupin and artichoke seed oils to be used as healthy oils
- A double-blind, placebo-controlled, cross-over study to establish the bifidogenic effect of a very-long-chain inulin extracted from globe artichoke (Cynara scolymus) in healthy human subjects
- Mineral profile in globe artichoke as affected by genotype, head part and environment
- Reducing effect of a combination of Phaseolus vulgaris and Cynara scolymus extracts on food intake and glycemia in rats
- Reducing effect of a combination of Phaseolus vulgaris and Cynara scolymus extracts on operant self-administration of a chocolate-flavoured beverage in rats
- Appetite control and glycaemia reduction in overweight subjects treated with a combination of two highly standardized extracts from Phaseolus vulgaris and Cynara scolymus
- Artichoke extract lowered plasma cholesterol and increased fecal bile acids in Golden Syrian hamsters
- Effects of prickly pear dried leaves, artichoke leaves, turmeric and garlic extracts, and their combinations on preventing dyslipidemia in rats
- Artichoke juice improves endothelial function in hyperlipemia
- Efficacy of Artichoke dry extract in patients with hyperlipoproteinemia
- Artichoke leaf extract (Cynara scolymus) reduces plasma cholesterol in otherwise healthy hypercholesterolemic adults: a randomized, double blind placebo controlled trial
- Beneficial effects of artichoke leaf extract supplementation on increasing HDL-cholesterol in subjects with primary mild hypercholesterolaemia: a double-blind, randomized, placebo-controlled trial
- Artichoke leaf extract for treating hypercholesterolaemia
- Luteolin-rich artichoke extract protects low density lipoprotein from oxidation in vitro
- Protective properties of artichoke (Cynara scolymus) against oxidative stress induced in cultured endothelial cells and monocytes
- Evidence of glycemia-lowering effect by a Cynara scolymus L. extract in normal and obese rats
- Artichoke polyphenols induce apoptosis and decrease the invasive potential of the human breast cancer cell line MDA-MB231
- Antiproliferative, protective and antioxidant effects of artichoke, dandelion, turmeric and rosemary extracts and their formulation
- Luteolin, a non-selective competitive inhibitor of phosphodiesterases 1-5, displaced [3H]-rolipram from high-affinity rolipram binding sites and reversed xylazine/ketamine-induced anesthesia
- Inhibitory effects of flavonoids on phosphodiesterase isozymes from guinea pig and their structure-activity relationships
- About photo-damage of human hair
- Efficacy of antioxidants in human hair
- The effect of various antioxidants and other modifying agents on oxygen-radical-generated DNA damage in human lymphocytes in the COMET assay
- The comet assay: a comprehensive review
- Artichoke induces genetic toxicity and decreases ethyl methanesulfonate-related DNA damage in Chinese hamster ovary cells
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