Botanical description, phytochemical constituents, ethnobotany, traditional medicinal use, and pharmacological activities of Stachys lavandulifolia Vahl

Stachys lavandulifolia Vahl known as "mountain tea", is a perennial flowering plant belonging to the Lamiaceae family and is widespread in Iran, Armenia, Azerbaijan, Iraq, Turkey and Turkmenistan. S. lavandulifolia is widely used in traditional medicine for its analgesic, anti-inflammatory and anxiolytic properties. This plant has different chemical compounds classes including terpenoids, iridoids, flavonoids and phenylethanoids that have been isolated from the aerial parts of it. This review covers the plant botany, traditional medicinal uses and chemical composition of S. lavandulifolia, along with its biological and pharmacological activities including clinical trial data. The information of this review article was obtained from different scientific databases such as Google scholar, Science Direct, Hindawi, SID, Scopus, PubMed, and ACS as well as traditional Persian books. Pharmacological and clinical studies, especially Anxiolytic activity and anti-inflammatory on the plant are relatively low, so these studies are suggested in the future. Also, phytochemical investigation on root of the plant is necessary.

Untargeted metabolomics study and identification of potential biomarkers in the six sections of the genus Stachys L. (Lamiaceae) using HPLC-MQ-API-MS/MS

INTRODUCTION

The genus Stachys L., belonging to the family Lamiaceae, is one of the largest genera with remarkable medicinal properties. Plants of this genus produce a broad range of secondary metabolites.

OBJECTIVES

Due to the incomplete comprehensive assessment of chemical profiles in Stachys species, we conducted an untargeted metabolomics study and identified potential biomarkers in the six sections of Stachys with chemotaxonomic importance.

MATERIAL AND METHODS

Dried leaves of 17 taxa were utilized for analysis of all the constituents using HPLC-MQ-API-MS. The obtained data were processed and analyzed using multivariate statistical methods, including heatmaps, PLS-DA score plots, functional analysis of metabolic pathways, metabolite set enrichment analysis, and biomarker and network analysis.

RESULTS

Among the 129 metabolites, 111 flavonoids and 18 non-flavonoids were recognized. The most represented flavonoids, including 41 flavones and 20 flavonols, displayed remarkable abundance. In non-flavonoid compounds, a total of six coumarins and six phenolic acids were present at high levels. In terms of approved markers in six sections, 76 chemical compounds, mainly flavonoids, coumarins, quinic acids, and cinnamic acids, were identified as potential biomarkers or chemotaxonomic indicators. Accordingly, the taxonomic complexities of some Stachys species in sections Fragilicaulis, Aucheriana, and Setifolia were properly resolved.

CONCLUSION

An HPLC-MS/MS-based metabolomics approach integrated with multivariate statistical methods was employed to identify (1) valuable markers and analyze metabolic diversity and (2) predict the pharmaceutical properties of Stachys species. The obtained chemical profiles provide a new perspective for investigation of the Stachys genus.

Brine Shrimp (Artemia salina Leach.) Lethality Test of Ethanolic Extract from Green Betel (Piper betle Linn.) and Red Betel (Piper crocatum Ruiz and Pav.) through the Soxhletation Method for Cytotoxicity Test

Traditional medicine is currently being explored and developed widely by various countries because its cost effectiveness and reduced side effects. The green betel (Piper betle Linn.) and the red betel (Piper crocatum Ruiz and Pav.) are plants from the same Piper genus that are widely cultivated in Indonesia and have various phytochemical properties and pharmacological effects. The objective of this research is to determine the cytotoxicity of green leaves and red betel leaves. This research was conducted in two main stages: first, the extraction and preparation through the soxhletation method; second, a cytotoxicity test through the brine shrimp (Artemia salina Leach) lethality test (BSLT). The results showed that there were lethal concentration 50 % (LC50) value in both green betel leaves ethanolic extract and red betel leaves ethanolic extract, with 44.975 μg per mL and 31.556 μg per mL, respectively. The red betel (leaves ethanolic extract has a higher cytotoxicity than green betel (leaves ethanolic extract which can be seen from the lower lethal concentration of 50% (LC50) value. The difference in cytotoxicity is due to differences in plant varieties that cause variations in phytochemical content which affects the pharmacological effects. The green betel leaves ethanolic extract and the red betel leaves ethanolic extract are cytotoxic and have potential anticancer properties.

In vitro and in silico assessment of DNA interaction, topoisomerase I and II inhibition properties of chrysosplenetin

Chrysosplenetin is a methoxyflavone with reported anti-cancer effect. We tested its cytotoxic effect on the MCF-7 breast cancer cell line, and determined its effect on DNA intercalation and on the activity of topoisomerases I and II. The compound inhibited proliferation MCF-7 with an IC₅₀ value of 0.29 μM. Chrysosplenetin did not initiate plasmid DNA cleavage but, in a concentration-dependent manner, protected plasmid DNA against damage induced by Fenton reagents. Furthermore, it possessed dual Topoisomerase I and II inhibitory properties. Especially, it inhibited topoisomerase II by 83-96% between the range 12.5-100 μM. In the light of these experimental findings, molecular docking studies were performed to understand binding mode, interactions and affinity of chrysosplenetin with DNA, and with topoisomerases I and II. These studies showed that of 4-chromone core and the hydroxyl and methoxy groups important for both intercalation with DNA and topoisomerase I and II inhibition.

Genus Stachys: A Review of Traditional Uses, Phytochemistry and Bioactivity

The present review highlights that Stachys spp. consist an important source of bioactive phytochemicals and exemplifies the uncharted territory of this genus for new research studies.

Flavone Glycosides from the Aerial Parts of Stachys lavandulifolia Vahl

Background: Stachys lavandulifolia Vahl is an herbaceous perennial plant which its flowering aerial parts are used traditionally as gastrotonic, spasmolytic, sedative and for the treatment of gastrointestinal disorders. In the present study the aerial parts of this medicinal plant was investigated for its flavonoid glycosides content. Methods: n-butanol fraction derived from hydroalcoholic extract of S. lavandulifolia was subjected to phytochemical analysis using chromatography on Sephadex LH-20 and RP-18 silica gel columns. The structures of isolated compounds were identified using 1H-NMR, 13C-NMR and UV spectral analysis. Results: Four flavone glycosides, chrysoeriol-7-O-β-D-glucopyranoside (1), apigenin-7-O-(6″-O-acetyl)-β-D-glucopyranoside (2), luteolin-7-O-β-D-glucopyranoside (3), apigenin-7-O-β-D-glucopyranoside (4), along with apigenin (5) and chlorogenic acid (6) were isolated from S. lavandulifolia aerial parts. Conclusion: Identification of these phenolic compounds with some known biological activities in S. lavandulifolia explains some medicinal properties reported for this species and make scientific rationale for its traditional uses.