scholarly journals The Metabolism of Baicalin in Rat and the Biological Activities of the Metabolites

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Yi Wang ◽  
Jingyu Yang ◽  
Xian Li ◽  
Jinhui Wang

Baicalin is one of the major bioactive constituents of Scutellariae Radix, but the biotransformation of it is poorly understood. In this paper, the metabolism of baicalin in rat was studied. Nine metabolites including one new compound were isolated and identified structurally. The plausible scheme for the biotransformation pathways of baicalin in the rats was deduced. And the main metabolites were evaluated for their antioxidation and anti-inflammation biological activities for the first time.

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Minh Giang Phan ◽  
Thi Thao Do ◽  
Thi Nga Nguyen ◽  
Thi Viet Huong Do ◽  
Ngoc Phuc Dong ◽  
...  

Eupatorium japonicum Thunb. of the plant family Asteraceae is a popular traditional herb in Vietnam. However, its chemical constituents as well as bioactive principles have not been investigated yet. We investigated the phytochemistry of E. japonicum in Vietnam and isolated seventeen compounds (1–17) including phytosterols, terpenoids, phenolic acids, flavonoids, fatty alcohols, and fatty acids. They were structurally determined by MS and NMR analysis. Except for compounds 6 and 12, all the other compounds were identified for the first time from E. japonicum. Since many sesquiterpene lactones with α-methylene γ-lactone ring are reported as anti-inflammatory and anticancer agents, eupatoriopicrin (10), 1-hydroxy-8-(4,5-dihydroxytigloyloxy)eudesma-4(15),11(13)-dien-6,12-olide (11) were selected among the isolates for biological assays. Compound 10 was identified as the main bioactive sesquiterpene lactone of E. japonicum showing its potent anti-inflammatory and cytotoxic activity through inhibiting NO production and the growth of HepG2 and MCF-7 human cancer cell lines. For the first time, eupatoriopicrin (10) was demonstrated to strongly inhibit NTERA-2 human cancer stem cell (CSC) line in vitro. It is noticeable that the cytotoxicity of eupatoriopicrin against NTERA-2 cells is mediated by its apoptosis-inducing capability of 10 as demonstrated by the results of Hoechst 33342 staining, flow cytometry apoptosis analysis, and caspase-3 activity assays. The biological activities of the main bioactive constituents 1–7, 10, 12, and 15 supported the reported anti-inflammatory and anticancer properties of extracts from E. japonicum.


Planta Medica ◽  
2018 ◽  
Vol 84 (09/10) ◽  
pp. 627-637 ◽  
Author(s):  
Rosa Tundis ◽  
Monica Loizzo

AbstractThe genus Santolina is a taxonomically complex group of plant species widely distributed in the Mediterranean flora and used in traditional medicine since ancient times for their biological properties, including antimicrobial, anti-inflammatory, antispasmodic, digestive, and analgesic activities. Phytochemical investigations of Santolina species have revealed the presence of terpenoids as the main bioactive constituents of the genus. Coumarins and flavonoids were also identified. This review deals, for the first time, with information on the traditional uses, chemical profile, and biological properties of plants of the genus Santolina in order to provide input for future research prospects.


Author(s):  
Rozina Aslam ◽  
Misbah Aslam ◽  
Shawana Abdullah ◽  
Muhammad Sarwar Yaqub

Licorice, a medicinal herb, has been found to contain various phytochemicals including flavonoids, phenolic compounds, saponins, sapogenins, pterocarpenes, coumestan derivatives, 2-arylobenzofuran derivatives, chemopreventive agents, acidic constituents and glycyrrhizin having different biological activities. Licorice is used in medical for treatment of various diseases like atherosclerosis, osteoporosis and Alzheimer’s disease. It is used as anti-inflammation, anti-ulcer, anti-cancer, anti-virus and in many other problems. It is also used as additive for flavoring candies, chewing gum and toothpaste. The roots of this plant are majorly used for extracting different phytochemicals. Various licorice species: Glycyrrhiza glabra, G. uralensis, G. inflata, G. lepidota, and G. pallidiflora contain various phytochemicals with different type of biological activities. This paper provides a brief of the bioactive constituents and biological functions of different licorice species in details.


2018 ◽  
Vol 13 (9) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Hawraz Ibrahim M. Amin ◽  
Faiq H. S. Hussain ◽  
Marcello Maggiolini ◽  
Giovanni Vidari

In the first phytochemical investigation of non-volatile secondary metabolites from the Kurdish traditional plant Iris persica L, (-)-embinin was isolated from flowers and leaves, isovitexin from flowers, trans-resveratrol-3- O-β-D-glucopyranoside from rhizomes and tectorigenin from bulbs. The complete NMR spectra of embinin are reported for the first time. In an MTT assay, embinin showed an inhibition activity higher than the well-known antitumor drug cisplatin against five of the six tested human tumor cells. Moreover, embinin showed a significant DPPH radical scavenging activity (IC50 value of 112.16) comparable to the reference antioxidant ascorbic acid. The remarkable biological activities exhibited by the extracts of Iris persica and isolated compounds have validated the uses of I. persica in the traditional medicine of Kurdistan.


2018 ◽  
pp. 47-52

Epimedium elatum (Morren & Decne) of family Berberidaceace is a rare perennial medicinal plant, endemic to high altitude forests of Northwestern Himalayas in India. Ethnobotanically, it has been used as an ingredient for treatment of bone-joint disorders, impotence and kidney disorders in Kashmir Himalayas. Phytochemically, it is rich in Epimedin ABC and Icariin; all of these have been demonstrated to possess remarkable biological activities like PDE-5 inhibition (treatment of erectile dysfunction), anticancer, antiosteoporosis antioxidant and antiviral properties. The present investigation reports its traditional usage, comprehensive distribution and conservation status from twenty ecogeographical regions in Kashmir Himalayas, India. The species was reported from Gurez valley for the first time. Numerous threats like excessive grazing, deforestration, habitat fragmentation, tourism encroachment, landslides and excessive exploitation have decreased its natural populations in most of the surveyed habitats. Consequently, its existence may become threatened in near future if timely conservation steps are not taken immediately by concerned stakeholders involved in medicinal plant research. Moreover, use of plant tissue culture techniques is recommended for development of its in vitro propagation protocols. Therefore, introduction of this medicinal plant in botanical gardens, protected sites and development of monitoring programmes are needed for its immediate conservation in Northwestern Himalayas, India.


2019 ◽  
Vol 20 (4) ◽  
pp. 302-308 ◽  
Author(s):  
Carla R.F. Volobuff ◽  
Pedro C.O. Junior ◽  
Sidney M. dos Santos ◽  
Zefa V. Pereira ◽  
Diego C. Ferreira ◽  
...  

Background: The genus Psychotria and Palicourea are reported as a source of alkaloids and iridoids, which exhibit biological activities. This study aimed to evaluate antiproliferative and anticholinesterase activities and quantification of the alkaloids of seven species among the genus found in Mato Grosso do Sul region in Brazil. Methods: Concentrations of alkaloids were measured spectrophotometrically. The extracts were submitted to antiproliferative activity against ten cell lines. The anticholinesterase activity of the extracts was developed using brain structures of male Wistar rats: cerebral cortex, hippocampus, hypothalamus and striatum by the Ellman method. Results: Alkaloids from Psychotria and Palicourea species were quantified which showed values of 47.6 to 21.9 µg/g. Regarding the antiproliferative potential, Palicourea crocea demonstrated selectivity against the 786-0 cell line (GI50: 22.87 µg/mL). Psychotria leiocarpa inhibited cell growth against OVCAR-3 (GI50: 3.28 µg/mL), K-562 (GI50: 5.26 µg/mL), HaCaT (GI50: 27.20 µg/mL), PC-3 (GI50: 34.92 µg/mL), MCF-7 (GI50: 35.80 µg/mL) and P. capillacea showed activity against OVCAR-3 (GI50: 2.33 µg/ml) and U251 (GI50: 16.66 µg/ml). The effect of acetylcholinesterase inhibition was more effective in the hippocampus, demonstrating inhibition for Paliourea crocea, Psychotria deflexa, P. brachybotrya and P. leiocarpa of 70%, 57%, 50% and 40%, respectively, followed by P. poeppigiana and P. capillacea, inhibiting 21%, compared to the control. Conclusion: Herein, the present work showed for the first time, anticholinesterasic and antiproliferative activities of extracts of Palicourea and Psychotria seem to be mainly associated with the levels of alkaloids in the leaves of these species.


2020 ◽  
Vol 16 (8) ◽  
pp. 1196-1208
Author(s):  
Ramin Ghodsi ◽  
Rahmat Nosrati

Background: Oils and fats are the densest sources of food energy among food groups. Vegetable oils are constituted predominantly of triglycerides. Due to the importance of edible oils in nutrition, food industry and human health, great attention has been paid to them in recent years. Some minor bioactive constituents in oils include phospholipids, tocols, sterols, carotenoid, chlorophyll, phenols, phylokynon and terpenes. Objective: The aim of the present study was to examine beneficial effects of minor compounds in edible oils on human health. Results: Minor compounds of edible oils that we use daily can produce remarkable results in the prevention and treatment of various diseases like diabetes, inflammation, hypertension, cancer, allergy and central nervous system disorders due to their antimicrobial, anti-cancer, anti-viral, anti-oxidative, anti-inflammation, anti-mutagenic, hypolipidemic, and hypoglycemic properties, among others. Conclusion: The results of this study showed that the presence of beneficial minor compounds in oils could have significant impact on the prevention and treatment of various diseases. Therefore, the type of consumed oil can play an important role in human health.


Author(s):  
Mohd Faisal Khan ◽  
Poonam Arora ◽  
Mahaveer Dhobi

Background: Vitex negundo Linn. commonly known as five leave chase tree is an ethnobotanically important drug in traditional system of medicine. The plant is widely distributed in India, China and other Asian and American countries. Objective: The review aims at presenting comprehensive information with respect to ethnopharmacological rele-vance and recent findings on phytochemical and biological activities of Vitex negundo. Method: Literature was collected from various sources such as pubmed, scopus, science direct, and others. Results: Extracts and secondary metabolites of this plant, particularly those from roots and leaves, possess useful pharmacological activities such as anti-inflammatory, antitumor, antioxidant, antimicrobial, galactagogue, antigas-tric, antiflatulant, antiparasitic, analgesic, hepatoprotective and antihypertensive, some of which have been vali-dated scientifically. All parts of plant especially leave and roots contain a large number of bioactive phytoconstitu-ents including flavonoids, iridoids, lignans, volatile oil, terpenes, coumarins, phenolic and steroidal compounds which impart it multiple medicinal properties. Vitexin, isovitexin, viridifol, caffeic acid, chlorogenic acid and iso-chlorogenic acid are the main components. Conclusion: The review emphasises the medicinal importance of Vitex negundo and its bioactive constituents in traditional system of medicine.


Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3457
Author(s):  
Ting Hu ◽  
Peng Wu ◽  
Jianfeng Zhan ◽  
Weixin Wang ◽  
Junfeng Shen ◽  
...  

Tea polysaccharides (TPSs) are one of the main bioactive constituents of tea with various biological activities such as hypoglycemic effect, antioxidant, antitumor, and immunomodulatory. The bioactivities of TPSs are directly associated with their structures such as chemical composition, molecular weight, glycosidic linkages, and conformation among others. To study the relationship between the structures of TPSs and their bioactivities, it is essential to elucidate the structure of TPSs, particularly the fine structures. Due to the vast variation nature of monosaccharide units and their connections, the structure of TPSs is extremely complex, which is also affected by several major factors including tea species, processing technologies of tea and isolation methods of TPSs. As a result of the complexity, there are few studies on their fine structures and chain conformation. In the present review, we aim to provide a detailed summary of the multiple factors influencing the characteristics of TPS chemical structures such as variations of tea species, degree of fermentation, and preparation methods among others as well as their applications. The main aspects of understanding the structural difference of TPSs and influencing factors are to assist the study of the structure and bioactivity relationship and ultimately, to control the production of the targeted TPSs with the most desired biological activity.


2021 ◽  
Vol 10 (3) ◽  
pp. 2506-2514

Psidium guajava is a tropical evergreen tree. It belongs to the family Myrtaceae that consists of about 133 genera and approximately 3800 species worldwide. This plant is mainly found in South Africa, North Africa, South America, and Southeast Asia. Psidium guajava is mainly a nutritional plant, but it also shows various biological activities. An array of bioactive constituents, viz; glycosides, terpenoids, tannins, alkaloids, steroids, saponins, amino acids, anthraquinones, proteins, flavonoids, and phenols, etc. have been isolated from Psidium guajava. These phytochemicals are well known for their biological activities, including antibacterial, antioxidant, antifungal, etc. The present work has been performed to gather data about the traditional uses, important phytochemicals, and antibacterial efficiency of Psidium guajava. Many pharmacological studies have demonstrated its antibacterial potential against various important drug resistive pathogens. We invite researchers' attention to carry out detailed antibacterial studies on this valuable plant species to provide reliable knowledge to the patients and discover more novel compounds for the development of new drugs with fewer side effects compared to conventional medicines.


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