scholarly journals Two Ecdysteroids Isolated from Micropropagated Lychnis flos-cuculi and the Biological Activity of Plant Material

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 904
Author(s):  
Michał P. Maliński ◽  
Jaromir Budzianowski ◽  
Małgorzata Kikowska ◽  
Monika Derda ◽  
Marcelina M. Jaworska ◽  
...  
Keyword(s):  
Biological Activity ◽  
Acute Toxicity ◽  
Plant Material ◽  
Present Report ◽  
Root Extract ◽  
Methanolic Extracts ◽  
Comparable Activity ◽  
Antiamoebic Activity ◽  
Amoebicidal Activity

Genetically uniform plant material, derived from Lychnis flos-cuculi propagated in vitro, was used for the isolation of 20-hydroxyecdysone and polypodine B and subjected to an evaluation of the antifungal and antiamoebic activity. The activity of 80% aqueous methanolic extracts, their fractions, and isolated ecdysteroids were studied against pathogenic Acanthamoeba castellani. Additionally, a Microtox® acute toxicity assay was performed. It was found that an 80% methanolic fraction of root extract exerts the most potent amoebicidal activity at IC50 of 0.06 mg/mL at the 3rd day of treatment. Both ecdysteroids show comparable activity at IC50 of 0.07 mg/mL. The acute toxicity of 80% fractions at similar concentrations is significantly higher than that of 40% fractions. Crude extracts exhibited moderate antifungal activity, with a minimum inhibitory concentration (MIC) within the range of 1.25–2.5 mg/mL. To the best of our knowledge, the present report is the first to show the biological activity of L. flos-cuculi in terms of the antifungal and antiamoebic activities and acute toxicity. It is also the first isolation of the main ecdysteroids from L. flos-cuculi micropropagated, ecdysteroid-rich plant material.

scholarly journals Phytochemical Screening and Acanthamoebic Activity of Shoots from in Vitro Cultures and in Vivo Plants of Eryngium alpinum L.—The Endangered and Protected Species

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1416 ◽  
Author(s):  
Małgorzata Kikowska ◽  
Dariusz Kruszka ◽  
Monika Derda ◽  
Edward Hadaś ◽  
Barbara Thiem
Keyword(s):  
Present Report ◽  
Preliminary Investigation ◽  
In Vitro Cultures ◽  
Phytochemical Screening ◽  
Protected Species ◽  
Triterpenoid Saponins ◽  
Methanolic Extracts ◽  
Antiamoebic Activity

Genetically uniform shoots of Eryngium alpinum L. cultured in vitro were subjected to the qualitative analysis applying the UPLC-HESI-HRMS technique. In vitro cultures give the opportunity to perform the phytochemical studies on the protected species without harvesting the plant material from the natural environment. The phytochemical screening of the crude methanolic extracts of shoots, both from in vitro cultures and in vivo plants, revealed the presence of phenolic acids, coumarins, flavonoids, triterpenoid saponins, amino acids, or dipeptides. Active compounds detected are known to have medicinal importance, and for this reason, the present study represents a preliminary investigation of the extracts against pathogenic and opportunistic amoeba. Among the extracts tested, the extract of shoots from in vitro cultures exhibited remarkable amoebicidal action against trophozoites. On the second day of treatment, the extract at the concentrations of 5 mg/mL, 2.5 mg/mL, and 0.5 mg/mL showed the highest antiamoebicidal effect: the inhibition of trophozoites reached 81.14%, 66.38%, and 54.99%, respectively. To our best knowledge, the present report is the first to show the phytochemical screening and to discuss the antiamoebic activity of Eryngium alpinum L. shoots, both from in vitro cultures and in vivo plants.

Chemical characterization and in vitro biological activity of Cymbopogon citratus extracts against Haemonchus spp. and Trichostrongylus spp. nematodes from sheep

Parasitology ◽  
2020 ◽  
Vol 147 (13) ◽  
pp. 1559-1568
Author(s):  
Letícia Oliveira da Rocha ◽  
Gloria Cristina da Silva Lemos ◽  
Ivo José Curcino Vieira ◽  
Raimundo Braz-Filho ◽  
Silvério de Paiva Freitas ◽  
...  
Keyword(s):  
Biological Activity ◽  
Chemical Characterization ◽  
Gastrointestinal Nematodes ◽  
The Body ◽  
Intestinal Cells ◽  
Phytochemical Analysis ◽  
Cymbopogon Citratus ◽  
Thin Sections ◽  
Methanolic Extracts

AbstractMedicinal plants have been the focus of several studies due to their nematicide properties which can be used to control nematodes in sheep. No study has examined the morphological effects of Cymbopogon citratus on nematodes. Thus, this study evaluated the chemical composition, nematicidal activity and effects of C. citratus extracts on the morphology of eggs and infective larvae (L3) of sheep. Aqueous and methanolic extracts and fractions of C. citratus were obtained and analysed in vitro. The C. citratus extracts were effective against Haemonchus spp. and Trichostrongylus spp. larvae and eggs. Ten fractions were obtained from C. citratus, six of which had high ovicidal activity at 1000 μg mL−1, and two fractions had high activity at all tested concentrations. The phytochemical analysis identified the presence of compounds such as terpenoids, various ketones, esters, and fatty acids. The ultrastructural analysis showed deformations of the cuticle and wilting along the body of the nematodes at all concentrations. The muscular layer, intestinal cells and the mitochondria profile showed damage compared to the typical pattern. Ultra-thin sections of eggs treated with methanolic fractions of C. citratus presented modifications. This study showed the biological activity and effects of C. citratus on the gastrointestinal nematodes in sheep.

scholarly journals Die toksisiteit van Gladiolus dalenii van Geel

1994 ◽  
Vol 13 (4) ◽  
pp. 125-128 ◽  
Author(s):  
S. Van Dyk ◽  
L. M. Gerritsma- Van der Vijver ◽  
D. G. Van der Nest
Keyword(s):  
Heart Failure ◽  
Congestive Heart Failure ◽  
Body Weight ◽  
Biological Activity ◽  
Candida Albicans ◽  
Acute Toxicity ◽  
Plant Material ◽  
Intact Plant ◽  
Lethal Doses

The biological activity of Gladiolus dalenii van Geel (Iridaceae) corms (used in ethnomedicine) and leaves were evaluated in a few systems. A profile of acute toxicity in rats was compiled and it was found that both corms and leaves contained cytotoxic substances affecting mitotic active tissue. Acute deaths resulted from congestive heart failure. The toxicity of a fraction (coded as GDI) isolated from corms was qualitatively similar to that of corms and leaves. Estimated minimum lethal doses, given in mg/kg body weight, lie in the range 10-31 (i.p.) and 3 160 - 5 620 (p.o.) for corms, 100-316 (i.p.) and > 1 780 (p.o.) for leaves and 1-3 (i.p.) and > 1 000 (p.o.) for fraction GDI. Intact plant material showed no activity against a series of microbes. Fraction GDI was active against Candida albicans. Phototoxicity was not detected.

scholarly journals In Vitro Study of Antiamoebic Activity of Methanol Extracts ofArgemone mexicanaon Trophozoites ofEntamoeba histolyticaHM1-IMSS

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Joel H. Elizondo-Luévano ◽  
Rocío Castro-Ríos ◽  
Eduardo Sánchez-García ◽  
Magda E. Hernández-García ◽  
Javier Vargas-Villarreal ◽  
...  
Keyword(s):  
Entamoeba Histolytica ◽  
Methanolic Extract ◽  
Parasitic Infection ◽  
In Vitro Study ◽  
Argemone Mexicana ◽  
Traditional Use ◽  
Antiparasitic Activity ◽  
Antiamoebic Activity ◽  
Amoebicidal Activity

Infections caused by parasites in humans represent one of the main public health concerns. Amoebiasis, a parasitic infection caused byEntamoeba histolytica(E. histolytica), is considered endemic in Mexico, whereArgemone mexicana(A. mexicana) has been used in traditional medicine to treat intestinal parasitic diseases. The objective of this work was to evaluate the potential biological activity ofA. mexicanaonE. histolytica. For this purpose, a methanolic extract was prepared fromA. mexicanaleaves, and a differential fractionation was carried out with solvents of different polarities. The inhibitory capacities of the extract and its fractions were evaluated in vitro using HM1-IMSS, a strain ofEntamoeba histolytica.A. mexicanaextract was found to have a growth-inhibiting activity forE. histolytica, showing IC50 = 78.39 μg/mL. The extract was characterized phytochemically, and the methanolic extract fractions were analyzed by liquid chromatography (HPLC) and mass spectrometry (MS). Berberine and jatrorrhizine were present in the active fractions, and these compounds may be responsible for the antiparasitic activity. The identification of amoebicidal activity ofA. mexicanaonE. histolyticagives support to the traditional use. Further studies with berberine and jatrorrhizine will be carried out to understand the mechanism involved.

scholarly journals The Evaluation of Phenolic Acids and Flavonoids Content and Antiprotozoal Activity of Eryngium Species Biomass Produced by Biotechnological Methods

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 363
Author(s):  
Małgorzata Kikowska ◽  
Justyna Chanaj-Kaczmarek ◽  
Monika Derda ◽  
Anna Budzianowska ◽  
Barbara Thiem ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Phenolic Acids ◽  
Total Content ◽  
Raw Material ◽  
Root Extract ◽  
Antiprotozoal Activity ◽  
Intact Plants ◽  
Biological Studies ◽  
Amoebicidal Activity

Three species from the Eryngium L. genus—E. campestre, E. maritimum, and E. planum, plants with a rich chemical composition, were selected for phytochemical and biological studies. The applied biotechnological methods allowed to obtain the biomass of these rare or protected species in the form of multiplied shoots (stationary system) and roots cultured in a liquid medium (agitated system). In the extracts from the raw material obtained under in vitro conditions, the content of selected phenolic acids and flavonoids (HPLC-DAD method) as well as the total of polyphenols (Folin–Ciocalteu assay) were quantified. The highest amount of all phenolic compounds was found in extracts from E. planum roots (950.90 ± 33.52 mg/100 g d.w.), and the lowest from E. campestre roots (285.00 ± 10.07 mg/100 g d.w.). The quantitatively dominant compound proved to be rosmarinic acid. The highest amounts were confirmed for E. planum root extract (694.58 mg/100 g d.w.), followed by E. planum (388.95 mg/100 g d.w.) and E. campestre (325.85 mg/100 g d.w.) shoot extracts. The total content of polyphenols was always increased in the biomass from in vitro cultures in comparison to the analogous organs of intact plants of each species. The obtained extracts were assessed for antiprotozoal activity against Acanthamoeba sp. The strength of biological activity of the extracts correlated with the content of phenolic compounds. To our knowledge, this is the first report on the amoebicidal activity of E. campestre, E. maritimum, and E. planum extracts from biomass produced by biotechnological methods.

scholarly journals INVESTIGATION OF IN VITRO ANTIOXIDANT POTENTIAL OF METHANOLIC EXTRACT OF BARK OF PRUNUS CORNUTA AND ROOT OF RUMEX OBTUSIFOLIUS

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
M.C purohit ◽  
Navneet Singh ◽  
Goutam Kumar ◽  
Rashmi Rawat ◽  
Mahender Singh
Keyword(s):  
Antioxidant Activity ◽  
Research Work ◽  
Radical Scavenging ◽  
Antioxidant Potential ◽  
Bark Extract ◽  
Total Phenolic ◽  
Root Extract ◽  
Rumex Obtusifolius ◽  
Methanolic Extracts

In the present research work, in vitro, the antioxidant activity of methanolic extracts of bark of Prunus cornuta and root of Rumex obtusifolius, respectively, was assessed by DPPH free radical scavenging method. Total phenolic content (TPC) of methanolic extracts was also determined by spectrophotometric method using Folin-Ciocalteu reagent and calculated in ?g/mL gallic acid equivalent (GAE). DPPH scavenging activity results show that the root extract of Rumex obtusifolius (IC50 = 17.15) and bark extract of Prunus cornuta (IC50 = 27.32) shows good antioxidant potential. TPC of root extract was found to be 178.56 ?g/g GAE, and bark extract was 137.23 ?g/g GAE. Antioxidant effect (%) determined by using phosphomolybdate assay and superoxide anion radical scavenging percentage further supports the potential antioxidant activity.

Biological activity and fate of trace quantities of intravenous chromium (III) in the rat

1965 ◽  
Vol 209 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Walter Mertz ◽  
Edward E. Roginski ◽  
Richard C. Reba
Keyword(s):  
Adipose Tissue ◽  
Biological Activity ◽  
Acute Toxicity ◽  
Normal Values ◽  
Trivalent Chromium ◽  
Whole Body ◽  
Epididymal Adipose Tissue ◽  
Type Analysis ◽  
Dietary History

Complexes of trivalent chromium were injected intravenously into rats raised on a low-chromium diet. Two hours after the injection of submicrogram amounts, impaired glucose removal rates were increased to near-normal values. The response of epididymal adipose tissue to insulin in vitro, as measured by the production of C14O2 from labeled glucose, was significantly enhanced in the chromium-injected animals. The amounts required for these effects were approximately 1/10,000 of doses producing acute toxicity. The whole-body disappearance of intravenously injected submicrogram amounts of chromium could be described by a multiexponential expression. Compartmental-type analysis revealed at least three regression rates. These rates were unaffected by previous dietary history with regard to chromium and were independent of absolute amounts injected. Intestinal absorption of chromium ranged around a few percent of the dose, regardless of amount applied, and was independent of dietary history.

PHARMACOGNOSTIC, ANTIOXIDANT AND ACUTE TOXICITY STUDY OF Ficus sycomorus (Linn) (Moraceae) ROOT AND STEM BARK

2020 ◽  
Vol 4 (2) ◽  
pp. 605-614
Author(s):  
Murtala M. Namadina ◽  
H. Haruna ◽  
U. Sanusi
Keyword(s):  
Acute Toxicity ◽  
Radical Scavenging ◽  
Stem Bark ◽  
The Body ◽  
Toxicity Study ◽  
Bark Extract ◽  
Root Extract ◽  
Acute Toxicity Study ◽  
Radical Scavenging Ability ◽  
Phytochemical Components

Most of biochemical reactions in the body generates Reactive Oxygen Species (ROS), which are involved in the pathogenesis of oxidative stress-related disorders like diabetes, nephrotoxicity, cancer, cardiovascular disorders, inflammation and neurological disorders when they attack biochemical molecules like proteins, lipids and nucleic acid. Antioxidants are used to protect the cells or tissues against potential attack by ROS. Most medicinal plants possess a rich source of antioxidants such as flavonoids, phenols, tannins, alkaloids among others. These phytochemicals are currently pursued as an alternative and complimentary drug. In this study, phytochemical components, antioxidant and acute toxicity study of the methanol extract of stem bark and root of F. sycomorus were carried out using standard methods. Findings from this study revealed the presence of some diagnostic microscopical features such as calcium oxalate, starch, gum/mucilage, lignin, Aleurone grain, suberized/Cuticular cell wall and inulin but calcium carbonate was absent in stem bark but present in the powdered root. Quantitative physical constants include moisture contents (6.40% and 7.82%), ash value (7.20% and 9.30 %) in stem bark and root respectively. Carbohydrates, alkaloid, flavonoids, saponins, tannins, glycoside, steroid, triterpenes and phenols were present in all the extracts. They were found to exhibit potent 1,1,-diphenyl 2-picryl hydrazyl (DPPH) free scavenging activity. The DPPH radical scavenging ability of the extracts showed the following trend Ascorbic acid < stem bark extract˃ root extract. The LD50 of the methanolic stem bark and root extracts were found to be greater than 5000 mg /kg and is considered safe for use. Nonetheless, further

COMPARATIVE STUDIES OF THE POTENTIATION OF CORTICOTROPHIN ACTIVITY BY SEVERAL INACTIVE DERIVATIVES

1963 ◽  
Vol 42 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Arthur I. Cohen ◽  
Edward H. Frieden
Keyword(s):  
Biological Activity ◽  
Comparative Studies ◽  
Free Amino ◽  
Hormonal Activity ◽  
Amino Groups

ABSTRACT A number of corticotrophin analogues have been prepared, some of which potentiate the biological activity of the untreated hormone in vitro. The free amino groups of corticotrophin appear to be essential not only for hormonal activity, but also for the interaction of the analogues with the tissue corticotrophin inactivating system which is assumed to account for the potentiating effect.

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