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Vitex agnus-castus L. (chaste tree) has a rich history of use in traditional medicine across various cultures for over 2500 years, particularly for gynecological issues. Its applications range from regulating menstrual cycles to alleviating premenstrual syndrome and menopausal symptoms, with endorsements from health authorities such as the German Commission E. This review aims to consolidate existing knowledge on the ethnopharmacological uses, phytochemistry, and pharmacological effects of V. agnus-castus , while also discussing its safety profile and therapeutic potential. The relevant articles were identified by searching PubMed ( www.pubmed.com ), Scopus ( http://www.scopus.com ), ISI Web of Science ( www.webofknowledge.com ), and Google Scholar ( www.scholar.google.com ) up to November 2024. V. agnus-castus exhibits a wide range of pharmacological properties, including antioxidant, anti-inflammatory, antimicrobial, and cytotoxic effects. Its active compounds, particularly casticin, have been linked to these benefits. Future research should focus on advanced preclinical and clinical studies to better assess its safety and therapeutic efficacy in diverse populations.

Medicinal plants are used worldwide due to their lower risk of side effects and eco-friendly, cost-effective production when compared to chemical drugs, encouraging researchers to further exploit the therapeutic potential of the former. One of the most popular medicinal plants is Vitex agnus-castus L., grown in tropical and sub-tropical regions, to which different health benefits have already been attributed. In this perspective article, the in vitro and in vivo therapeutic properties of V. agnus-castus L. have been analyzed and reviewed with a special focus on its health-promoting effects and potential nutraceutical applications.

The eriophyoid mite Aceria massalongoi (Canestrini) was collected from globoid leaf galls on severely injured chaste trees, Vitex agnus-castus L. (Lamiaceae), in Bari and Bernalda (southern Italy), and on the Ionian island Leukade (Greece). Female, male and nymph were described in detail, following the current morphometric descriptive scheme, supplementing older and incomplete descriptions. Molecular characterization of A. massalongoi from Italy and Greece was conducted by amplifying and sequencing the ribosomal ITS, the D2–D3 expansion domains of the 28S rRNA gene and the mitochondrial COI, for the first time. Phylogenetic trees based on the three molecular markers showed congruent results, confirming that Italian and Greek A. massalongoi populations are the same species that cluster together with some intraspecific variability. Galls, ranging from 0.5 to 2.8 mm in diameter, were randomly distributed on both leaf surfaces, and protruded ca. 1 mm from the leaf surface. Sometimes they were closely aggregated on midrib and leaves, which, consequently, appeared strongly deformed. Close-up observations revealed that gall induction causes hyperplastic proliferation of leaf tissues around the gall chamber hosting mites. The uniserial cell lining inside this chamber provides the nutritional tissue for the mites. All feeding cells contained one or more (frequently 2–3) hypertrophied nuclei and dense granular cytoplasm.

The three-leaved chaste tree (Vitex trifolia) is a medicinal and ornamental plant widely distributed from East Africa to the Pacific but has no complete chloroplast genome sequence. We assembled and characterized the V. trifolia accession from the germplasm collection of the Institute of Crop Science, University of the Philippines Los Baños. The complete plastome sequence is 154,444-bp long with 131 coding genes comprising 87 mRNA genes, 36 tRNA genes, and 8 rRNA genes. A phylogenetic analysis of the assembled genome, together with nine other Lamiaceae species, identified V. rotundifolia as its closest relative with available complete cpDNA sequence. The clustering also supports the genotypic similarity of the species belonging to trifolia group of the genus Vitex.

The in vitro antioxidant potential assay between ethanolic extracts of two species from the genus Vitex (Vitex negundo L. and Vitex trifolia L.) belonging to the Lamiaceae family were evaluated. The antioxidant properties of different extracts prepared from both plant species were evaluated by different methods. DPPH scavenging, nitric oxide scavenging, and β-carotene-linoleic acid and ferrous ion chelation methods were applied. The antioxidant activities of these two species were compared to standard antioxidants such as butylated hydroxytoluene (BHT), ascorbic acid, and Ethylene diamine tetra acetic acid (EDTA). Both species of Vitex showed significant antioxidant activity in all of the tested methods. As compared to V. trifolia L. (60.87–89.99%; 40.0–226.7 μg/mL), V. negundo has been found to hold higher antioxidant activity (62.6–94.22%; IC50 = 23.5–208.3 μg/mL) in all assays. In accordance with antioxidant activity, total polyphenol contents in V. negundo possessed greater phenolic (89.71 mg GAE/g dry weight of extract) and flavonoid content (63.11 mg QE/g dry weight of extract) as compared to that of V. trifolia (77.20 mg GAE/g and 57.41 mg QE/g dry weight of extract respectively). Our study revealed the significant correlation between the antioxidant activity and total phenolic and flavonoid contents of both plant species.

Vitex agnus-castus L., known as the chaste tree, is a small deciduous tree which its fruits have been used for more than 2500 years in ancient Egypt, Greece, Iran, and Rome for a variety of gynecologic problems. It has also been used for its claimed activity in the reduction of libido. The German health authorities have approved the use of V. agnus-castus for menstrual cycle irregularities, premenstrual syndrome, mastalgia, and menopausal disorders. The German Commission E recommended 30-40 mg/day of extract of dried fruit which is standardized based on 0.6% casticin. Scientific studies confirmed several pharmaceutical effects of this medicinal plant including antioxidant, chemopreventive, immunomodulatory and cytotoxicity, tumoricidal, antimutagenic, antimicrobial, antifungal, insect repellant, larvicidal, fracture healing, osteopenic, antinociceptive, opioidergic, antiepileptic, preventing nonalcoholic fat liver disease and oxidative stress, and anti-inflammatory activities. Adverse effects following by application of this plant are mild and reversible. There are no drug interactions recognized by systematic reviews. Theoretically, chaste tree could interfere with dopaminergic antagonists. In addition, the application of V. agnus-castus is contraindicated (or should be avoided) during pregnancy due to theoretical opinions and cellular studies that exhibited progesteronic and estrogenic properties of the plant. This study provides the documentation for scientists to use the properties of V. agnus-castus as an effective herbal medicine and its safety and acceptable dosage are discussed. Advanced preclinical and clinical investigations for sufficiently assessing the safety and therapeutic efficacy of V. agnus-castus are recommended.

Extracts of the fruits of chaste tree ( Vitex agnus castus = AC) are widely used to treat premenstrual symptoms. Double-blind placebo-controlled studies indicate that one of the most common premenstrual symptoms, i.e. premenstrual mastodynia (mastalgia) is beneficially influenced by an AC extract. In addition, numerous less rigidly controlled studies indicate that AC extracts have also beneficial effects on other psychic and somatic symptoms of the PMS. Premenstrual mastodynia is most likely due to a latent hyperprolactinemia, i.e. patients release more than physiologic amounts of prolactin in response to stressful situations and during deep sleep phases which appear to stimulate the mammary gland. Premenstrually this unphysiological prolactin release is so high that the serum prolactin levels often approach heights which are misinterpreted as prolactinomas. Since AC extracts were shown to have beneficial effects on premenstrual mastodynia serum prolactin levels in such patients were also studied in one double-blind, placebo-controlled clinical study. Serum prolactin levels were indeed reduced in the patients treated with the extract. The search for the prolactin-suppressive principle(s) yielded a number of compounds with dopaminergic properties: they bound to recombinant DA2-receptor protein and suppressed prolactin release from cultivated lactotrophs as well as in animal experiments. The search for the chemical identity of the dopaminergic compounds resulted in isolation of a number of diterpenes of which some clerodadienols were most important for the prolactin-suppressive effects. They were almost identical in their prolactin-suppressive properties than dopamine itself. Hence, it is concluded that dopaminergic compounds present in Vitex agnus castus are clinically the important compounds which improve premenstrual mastodynia and possibly also other symptoms of the premenstrual syndrome.

The purpose of this study was to assess the effectiveness of essential plant oils from Vitex agnus-castus L. (VAC) and Myrtus communis L. against the plant pathogens, Fusarium oxysporum f. sp. radicis-lycopersici (Sacc.) W.C. Synder & H.N. Hans, Rhizoctonia solani J.G. Kühn., Sclerotinia sclerotiorum (Lib.) de Bary and Verticillium dahliae Kleb., and to determine the chemical composition of the compounds in these essential oils. GC/MS analysis was identified 25 different compounds in VAC essential oil, while the main compounds were determined as Eucalyptol (17.75%), β-Caryophyllene (13.21%) and Spathulenol (10.41%). On the other hand, the essential oil of M. communis, consisted of 16 different compounds which were Eucalyptol (49.15%), Myrtenol (19.49%) and α-Pinene (8.38%) being its main compounds. An assessment of antifungal activity was performed under in vitro conditions. Plant pathogens were inoculated onto Petri dishes (60 mm) containing PDA medium (10 mL/Petri-1), and plant essential oils were applied at concentrations of 0.5, 1, 1.5, 2, 5 and 10 (μL/Petri-1) into the 5 mm diameter wells opened on the Petri dish surface. After that, the Petri dishes incubated at 22±2 °C. The results of this study, the essential oil of M. communis, at a dose of 10 μL/ Petri, inhibited the 100% mycelium growth of V. dahliae, S. sclerotiorum and R. solani. The highest dose of VAC essential oil was also 100% inhibited V. dahliae and S. sclerotiorum. The LC50 and LC90 values of M. communis and VAC essential oil calculated for V. dahliae, FORL, S. sclerotiorum and R. solani. This plant extracts were shown by in vitro conditions to be potential antifungal agents.