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This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 30 PubMed articles · model: gemma4:31b
Summary
Capparis spinosa, known as the caper bush, is an aromatic perennial shrub used in traditional medicine and as a food condiment [PMID:36064949, PMID:35935860]. It is recognized for its diverse pharmacological activities, including antioxidant, antidiabetic, and antibacterial effects [PMID:27406313, PMID:28551550].
Background
Capparis spinosa L. is a xerophytic perennial shrub of the Capparaceae family, endemic to the Mediterranean basin and parts of Western Asia and Africa [PMID:36064949, PMID:28551550, PMID:35935860]. The plant is highly adaptable to harsh environments, including high salinity and drought [PMID:29118777, PMID:38072942].
Traditional uses
C. spinosa has been utilized in conventional phytomedicine and folk medicine for a long time to treat metabolic and infectious diseases [PMID:36064949, PMID:35935860]. Traditional therapeutic applications were also reported among the Ancient Romans [PMID:29364841].
Active compounds
Bioactive constituents include polyphenols, flavonoids (such as quercetin and rutin), alkaloids, glucosinolates, phenolic acids, volatile oils, fatty acids, and polysaccharides [PMID:36064949, PMID:35935860, PMID:36587515, PMID:27489055, PMID:11449469].
Mechanism of action
Antihyperglycemic effects are thought to occur by reducing carbohydrate absorption in the small intestine, inhibiting hepatic gluconeogenesis, enhancing tissue glucose uptake, and protecting or regenerating beta cells [PMID:28551550]. In vitro, aqueous fractions have been shown to induce an anti-inflammatory response by inhibiting IL-17 and inducing IL-4 gene expression in human peripheral blood mononuclear cells [PMID:27483999].
Caper fruit consumption appears to decrease liver enzymes, specifically ALT [PMID:37806093]
Evidence CDiabetes
Reviews indicate antihyperglycemic and hypolipidemic activities, though one review notes insufficient evidence that extracts improve cardiovascular or diabetes biomarkers [PMID:28551550, PMID:29364841]
Evidence DGastric Ulcer (Rat model)
C. spinosa extract demonstrated gastroprotective effects against indomethacin-induced ulcers [PMID:36883165]
Evidence DCancer (In vitro)
Hydroalcoholic extracts showed anti-cancer effects on HeLa, MCF7, Saos, and Fibroblast cancer cells [PMID:30800242]
Safety & adverse effects
While generally described as having negligible adverse effects [PMID:27406313], there is a reported case of food allergy to caper [PMID:23653983]. Additionally, plasticizers such as DEHT and DEHP have been isolated from the leaves, which may be due to environmental contamination [PMID:37505806].
Evidence summary
The evidence consists primarily of in vitro studies, animal models, and literature reviews (Level C/D), with one systematic review and meta-analysis of five RCTs (Level A) providing evidence for the reduction of liver enzymes (ALT) following caper fruit consumption.
PubMed sources
1.PMID: 36064949 (2022) — Phytochemistry, Biological Activities, Therapeutic Potential, and Socio-Economic Value of the Caper Bush (Capparis Spinosa L.). · Chemistry & biodiversity
2.PMID: 27406313 (2016) — Pharmacological Effects of Capparis spinosa L. · Phytotherapy research : PTR
3.PMID: 28551550 (2017) — Antidiabetic properties of Capparis spinosa L. and its components. · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
4.PMID: 35935860 (2022) — Caper (Capparis spinosa L.): An Updated Review on Its Phytochemistry, Nutritional Value, Traditional Uses, and Therapeutic Potential. · Frontiers in pharmacology
5.PMID: 37806093 (2023) — Effect of caper fruit (Capparis spinosa L.) consumption on liver enzymes, lipid profile, fasting plasma glucose, and weight loss. A systematic review and a preliminary meta-analysis of randomized controlled trials.
Government sources
No direct government monograph is available for this herb. The content below is AI-generated and has not been verified against an authoritative government source. Use the search links to check official sources before relying on this information.
6.PMID: 36587515 (2023) — Capparis spinosa L. as a potential source of nutrition and its health benefits in foods: A comprehensive review of its phytochemistry, bioactivities, safety, and application. · Food chemistry
7.PMID: 27489055 (2016) — Metabolomic study of wild and cultivated caper (Capparis spinosa L.) from different areas of Sardinia and their comparative evaluation. · Journal of mass spectrometry : JMS
8.PMID: 29364841 (2018) — Phytochemical and Pharmacological Properties of Capparis spinosa as a Medicinal Plant. · Nutrients
10.PMID: 38072942 (2023) — Germplasm characterization and SDS-PAGE analysis of caper (Capparis spinosa L.) from different provenances. · BMC plant biology
11.PMID: 30800242 (2019) — The Anti-cancer Effects of Capparis spinosa Hydroalcoholic Extract. · Avicenna journal of medical biotechnology
12.PMID: 37505806 (2023) — Isolation of Two Plasticizers, Bis(2-ethylhexyl) Terephthalate and Bis(2-ethylhexyl) Phthalate, from Capparis spinosa L. Leaves. · Chemistry & biodiversity
13.PMID: 36883165 (2022) — Gastroprotective Effect of Capparis spinosa on Indomethacin-induced Gastric Ulcer in Rats. · Archives of Razi Institute
14.PMID: 27483999 (2016) — Capparis Spinosa L. promotes anti-inflammatory response in vitro through the control of cytokine gene expression in human peripheral blood mononuclear cells. · BMC immunology
15.PMID: 23653983 (2013) — Food allergy to caper (Capparis spinosa). · Journal of investigational allergology & clinical immunology
16.PMID: 29118777 (2017) — Capparis spinosa L. in A Systematic Review: A Xerophilous Species of Multi Values and Promising Potentialities for Agrosystems under the Threat of Global Warming. · Frontiers in plant science