scholarly journals Chemistry, biological activities and toxic effects of alkaloidal constituents of genus Delphinium - A mini review

2021 ◽  
Vol 10 (4) ◽  
pp. 486-499
Author(s):  
Mohammadreza Lotfaliani ◽  
Seyed Abdulmajid Ayatollahi ◽  
Farzad Kobarfard ◽  
Mustafa ghanadian ◽  
Pardis Mohammadi Pour

The genus Delphinium is one of the essential members of the family Ranunculaceae. These species grow wild in North America, Europe, and Asia. They have demonstrated antioxidant, antimicrobial, and cytotoxic activities. Diterpenoid alkaloids are their main constituents and seem to be responsible for medicinal and toxic properties. The primary purpose of this paper is to review the therapeutic benefits of Delphinium species, chemical composition, and its medicinal uses, in addition to the reported toxic effects of these plants influencing different animals and humans.

2016 ◽  
Vol 11 (12) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Noura S. Dosoky ◽  
Prabodh Satyal ◽  
Suraj Pokharel ◽  
William N. Setzer

Rhododendron anthopogon D. Don., a small compact Himalayan shrub growing in Nepal, is a known medicinal plant used to treat sore throat, colds, blood disorders, bone disease, potato allergies, and vomiting, and to relieve liver disorders, headaches and back pain. The present study investigated the chemical composition and bioactivities of the leaf essential oil from R. anthopogon from Dhankuta, Nepal. The essential oil from leaves was obtained by hydrodistillation and a detailed chemical analysis was conducted by gas chromatography – mass spectrometry (GC-MS). The enantiomeric distribution of monoterpenoid components was determined using chiral gas chromatography and represents the first chiral examination of R. anthopogon essential oil. The essential oil was screened for antimicrobial activity using the microbroth dilution test, and for cytotoxic activity against MCF-7, MDA-MB-231, and 5637 using the MTT assay. A total of 70 volatile components were identified from the essential oil. The major components were α-pinene (21.5%), δ-cadinene (13.8%), β-pinene (9.5%), limonene (5.9%), δ-amorphene (4.6%), α-muurolene (4.5%), and ( E)-caryophyllene (3.2%) with other minor constituents (< 3%). The essential oil showed marginal antibacterial and cytotoxic activities, but no antifungal effects.


Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2651
Author(s):  
Touka Letaief ◽  
Stefania Garzoli ◽  
Valentina Laghezza Masci ◽  
Jamel Mejri ◽  
Manef Abderrabba ◽  
...  

The Tunisian Ziziphus lotus plant was investigated to determine its phytoconstituents and evaluate its biological activities. In particular, the GC/MS technique was used to describe the chemical composition of Z. lotus active extracts and fractions. Among the obtained extracts, the yields of the dried root methanolic extract (29.80%) and the fruit aqueous extract (48.00%) were the highest ones. The dried root methanolic extract exhibited the highest amount in the total phenolics (186.44 ± 0.26 mg GAE/g DW), total flavonoids (102.50 ± 3.53 mg QE/g DW), and tannins (60.714 ± 2.2 mg catechin/g DW). The root aqueous extracts revealed the highest antioxidant activity with an IC50 of 8.96 ± 0.38 mg/L and 16.46 ± 0.60 mg/L for the ABTS•+ and DPPH• assays, respectively. The total antioxidant capacity was accorded to the methanolic extract of the dried roots with a value of 304.07 ± 1.11 µg AAE/mg. The drying process was found to improve the qualitative and quantitative properties of the Z. lotus extracts. The evaluation of the cytotoxic activity against the SH-SY5Y cell line was carried out using MTT assay. The petroleum ether and dichloromethane extracts of the dried roots showed relevant cytotoxic activities. The thin layer chromatography and the GC-MS/GC-FID analysis led to the identification of the 13-epimanool as a potent cytotoxic compound.


2020 ◽  
Vol 17 (3) ◽  
Author(s):  
Djabir Daddiouaissa ◽  
Azura Amid

Medicinal plants become very important in our days for their therapeutic benefits to humankind. It sustains human health, and it is commonly known as herbal medicines since ancient times. Annona muricata is a heart-shaped fruit that is consumed raw or as the fruit juice in the tropical area. A. muricata is used in traditional and alternative medicine to treat different ailments such as diabetes, hypertension, respiratory and skin illness, inflammation and cancer. A. muricata contains essential anticancer agents named acetogenins that play the significant role in various cancer types. Acetogenins are strong nicotinamide adenine dinucleotide oxidase inhibitors of the cancer cell's mitochondrial membrane but showed neurotoxic effects in rats. Therefore, acetogenins need to be further investigated to determine the exact mechanisms of action, long-term safety, optimal dosage, and potential side effects. Given the extensive studies on A. muricata, this review focuses on the phytochemistry, medicinal uses, biological activities and the mechanisms of action for the fruit extracts and acetogenins, to stimulate further studies on the fruit pulp used for human consumption.


2020 ◽  
Vol 11 (4) ◽  
pp. 6066-6078
Author(s):  
Greeshma G Nair ◽  
Sathianarayanan S

The objective of this review is to document briefly about the chemical constituents, pharmacognostical evaluation and biological activities of Syzygium samarangense belongs to the family Myrtaceae. It is generally called Java Apple, Wax Apple, Blume, Chambekka etc. Syzygium samarangense traditionally used as an astringent. It is also used to treat fever and halt diarrhea. The whole plant contains flavonoids, terpenoids, tannins, phenolic compounds, gallic acid, ellagic acid, squalene, botulin, lupeol, sitosterol, mixture of cycloartenol stearate, lupenyl stearate, β-sitosterol stearate, vitamins and minerals which bearing anti-oxidant, anti- microbial, hypoglycemic, anti-inflammatory, Immunomodulatory, CNS, Anti- diarrheal, anthelmintic and cytotoxic activities. In this review, different parts of the plant, their phytochemical constituents and their corresponding biological activities have been explored. The literatures reported that the fruit part contains carotene, anthocyanin and vescalagin which is used as antioxidant, anti- microbial and hypoglycemic effect. The leaf part contains myricetin, strobopinine, epigallocatechin, aurentiacin which bearing anti-inflammatory and immunomodulatory effect. The alcoholic extracts of leaves, seeds, root bearing analgesic, anti- inflammatory effect in lipopolysaccharide, antioxidant, cytotoxic activity against human colon cancer cell, the studies revealed that the extracts showed a potent anti- microbial activity against salmonella typhi, Escherichia coli, pseudomonas aeruginosa, bacillus subtilis, candida albicans etc. The aqueous extract of fruit prevents diabetes mellitus in rats.


2020 ◽  
Vol 10 ◽  
Author(s):  
Sakchai Chaibun ◽  
Wilart Pompimon ◽  
Chanika Tidchai ◽  
Noraset Chalaemwongwan ◽  
Jutarut Wongping ◽  
...  

Background: C. delpyi, C. decalvatus and C. caudatus are in the Euphorbiaceae family. The aerial parts; twigs, leaves and barks of these plants were used as traditional medicine such as anti-inflammatory, cytotoxicity, and antifungal properties. Objectives: The aims of this work were 1) to study the chemical composition of C. delpyi, C. decalvatus, and C. caudatus 2) to test their antibacterial, anti-HIV-1 RT, and cytotoxicity activities of crude extracts and pure compounds from these plants. Methods: Extraction, separation and purification of three plants were performed under chromatographic method. The biological activities including antibacterial, anti-HIV-1 RT and cytotoxicity assay of three plants were evaluated by the standard methods. Results: Phytochemical investigation of C. delpyi was founded a new clerodanes diterpenoids; crotondelpyitin A (1). The five known compounds, such as acetyl aleuritolic acid (2), 5-hydroxy-7,4- dimethoxyflavone (3), and pilloin (4) were founded in C. decalvatus and 3α-benzoyloxy-D:A-friedo-oleanan-27,16αlactone (5), and bergenin (6) were founded in C. caudatus. The compound 3 show the most effective antibacterial activities with MIC in range <0.16 -1.25 mg/mL, and MBC in range 0.6 - >5.0 mg/mL. The six compounds were inactive with antiHIV-1 RT. In addition, compound 4 was active for cytotoxic activities on FaDu and KKU-M213 at <4 µg/mL. Conclusion: The present study reveals that the Croton species are sources of diterpenoid-type compounds and significant guide for further research of the chemical constituents from these plants as potential medicines.


Author(s):  
Vanita Kanase ◽  
Farha Khan

Curcuma is a genus of about 100 accepted species in the family Zingiberaceae that contains such species as turmeric and Siam tulip. They are native to Southeast Asia, southern China, ISSN (Online): 2319-7064 ISSN (Online): 2319-7064 naturalized in other warm parts of the world such as Tropical Africa, Central America, Florida, and various islands of the Pacific, Indian, and Atlantic Oceans. Few known species of Curcuma with reported pharmacological activity are Curcuma longa, Curcuma aeruginosa, Curcuma pseudomontana, Curcuma aromatica, Curcuma xanthorrhiza, Curcuma zedoaria, Curcuma angustifolia. Among them, C. longa is the one species extensively studied and has ancient traditional medicinal uses. These Curcuma species have been used in traditional medicine as a household remedy for various diseases, including biliary disorders, anorexia, cough, diabetic wounds, hepatic disorders, rheumatism, and sinusitis. For the past few decades, extensive work has been done to establish the biological activities and pharmacological actions of Curcuma species and its extracts. This review article is created with an intention to give an overview on the reported research carried out on the Curcuma species such as anticancer activity, antitumor, antitubercular, antibacterial, antimicrobial, toxicity activity, and wound healing. And also, these Curcuma species can be considered as herbal medicinal plant having a plethora of research opportunities based on its traditional use and biological activity.


2019 ◽  
Vol 9 (1-s) ◽  
pp. 476-480 ◽  
Author(s):  
Shafiqa Rasool ◽  
Mudasir Maqbool

The Indian Himalayan Region (IHR) serves as tremendous repository of plant biodiversity which is derived from extreme altitudinal gradients and phenomenal geographic provinces and has been proved as the richest reservoir of medicinal plants and aromatic plants. The lavish range of plant biodiversity in IHR is supported by various landscape features that provide myriad of habitats. Hedychium spicatum Buch-Ham (Zingiberaceae), commonly known as spiked ginger lily, is found in the entire Himalayan region. Rhizome contains about 4% of essential oil and its phytochemical investigations have shown the presence of a variety of terpenoids (monoterpenoids, sesquiterpenoids and diterpenoids).Traditionally, the rhizomes are used in the treatment of respiratory disorders, fevers, tranquilizer, hypotensive, antispasmodic, CNS depressant, analgesic, anti-inflammatory, antimicrobial, antioxidant, antifungal, pediculicidal and cytotoxic activities. The family Zingiberaceae well known for its immense medicinal values is distributed widely throughout the tropics, particularly in Southeast Asia. Zingiberaceae family is an important natural resource that provides many useful products for food, spices, medicines, dyes, perfume and aesthetics. Ethnobiologically, H. spicatum is not commonly popular throughout the Indian Himalayan region, but multifarious uses are practised specifically in different regions. In this review, we will briefly explain about the various multi-faceted aspects about Hedychium spicatum. Keywords: Hedychium spicatum, Chemical composition, Rhizomes, Zingiberaceae.


2018 ◽  
Vol 64 (01) ◽  
pp. 3-9
Author(s):  
Andzela Brajanovska ◽  
Biljana Bauer

Helleborus sp. are healing plants from the family Ranunculaceae. The aim of this paper is to consider ethnopharmacology and the toxicity of the hellebores which is focused on a detailed research of the value of phytochemicals, as pharmacological attributes of phytomedicine herbs. The data is based on active components. Also, this paper presents the chemical composition of the root in the overall effect of the drug, as well as the importance of the hellebores in pharmacy. It shows a wide range of pharmacological effects such as cardiotonic, immunostimulative, antibacterial, antitumor, diuretic, and emetic. Helleborus odorus Waldst. et Kit. is rich with secondary metabolites such as bufadenolides, flavonoids, phenolic heterozids. With this research it was concluded that these plants have great significance and great application in the formulation of pharmaceutical dosage forms. Keywords: Helleborus sp., phytomedicine, folk medicinal uses, cardiotonic, toxicity, hellebore


2020 ◽  
Vol 2020 ◽  
pp. 1-20 ◽  
Author(s):  
Mehdi Taib ◽  
Yassine Rezzak ◽  
Lahboub Bouyazza ◽  
Badiaa Lyoussi

Quercus species, also known as oak, represent an important genus of the Fagaceae family. It is widely distributed in temperate forests of the northern hemisphere and tropical climatic areas. Many of its members have been used in traditional medicine to treat and prevent various human disorders such as asthma, hemorrhoid, diarrhea, gastric ulcers, and wound healing. The multiple biological activities including anti-inflammatory, antibacterial, hepatoprotective, antidiabetic, anticancer, gastroprotective, antioxidant, and cytotoxic activities have been ascribed to the presence of bioactive compounds such as triterpenoids, phenolic acids, and flavonoids. This paper aimed to provide available information on the medicinal uses, phytochemicals, and pharmacology of species from Quercus. However, further investigation is needed to fully clarify the mode of action of its bioactive compounds and to evaluate in vivo chronic toxicity, before exploring their potential use as a supplement in functional foods and natural pharmaceutics.


Planta Medica ◽  
2019 ◽  
Vol 85 (13) ◽  
pp. 1054-1072 ◽  
Author(s):  
Carolina Sette Barbosa Damasceno ◽  
Natasha Tiemi Fabri Higaki ◽  
Josiane de Fátima Gaspari Dias ◽  
Marilis Dallarmi Miguel ◽  
Obdulio Gomes Miguel

AbstractThe Lauraceae family is predominantly found in Asia and in the rainforests of the Americas, and consists mostly of aromatic trees. Being an essential oil producer, this family is used in the food, pharmaceutical, and cosmetic industries. This work presents a systematic review of the chemical composition and bioactivity of the essential oils from the Lauraceae family. Medline, Scielo, Web of Science, Lilacs, and Scopus were employed to identify articles published between 2000 and 2018, using “Lauraceae”, “essential oil”, and “biological activity” as key words. From 177 studies identified, 53 met the inclusion criteria. These studies indicated a predominance of the compounds β-caryophyllene and 1,8-cineole in Lauraceae species, and highlighted the antioxidant, antifungal, antibacterial, and anti-inflammatory activities. Essential oils extracted from this family thus have high potential for pharmacological applications.


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