Assessment of cholinesterase and tyrosinase inhibitory and antioxidant properties of Viscum album L. samples collected from different host plants and its two principal substances

2014 ◽  
Vol 62 ◽  
pp. 341-349 ◽  
Author(s):  
Didem Deliorman Orhan ◽  
Fatma Sezer Senol ◽  
Sanem Hosbas ◽  
Ilkay Erdogan Orhan
2019 ◽  
Author(s):  
Chem Int

Toxicity evaluation of medicinal plants is useful to know their safety profile. Male infertility arising from administration of drugs of plant origin is a major health concern. In the management of chronic health issues, the adverse effects of these agents are often down-played in favour of the beneficial medicinal values. This encourages repeated administration or consumption of part or whole plant products. Viscum album (mistletoe) is a popular medicinal plants used in the treatment of various chronic diseases. However, there is paucity of research on the effect of mistletoe from different host plants on male fertility. The study investigated the effects of aqueous extracts of Viscum album obtained from three host plants (Cocoa, Kola and Coffee) on semen parameters of Wistar rats. Animals were divided into four groups Control, Cocoa, Kola and Coffee respectively. Group 1 served as control (received distilled water, 10 ml/kg), groups 2, 3, 4 and 5 had four sub-groups each. Each sub-group received 400, 800, 1600 and 3200 mg/kg doses of extract respectively daily for 24 days. Five animals were allotted to each group (control) and sub-group (extracts). Administration of 400, 800, 1600 and 3200 mg/kg doses of extract of Viscum album obtained from three host plants (Cocoa, Kola and Coffee) caused dose-dependent significant (P<0.05, 0.01) decrease in semen quality (count, motility, morphology, concentration and viability) respectively. However, semen volume was not significantly altered (P>0.05). The results suggest that Viscum album obtained from the three host plants adversely affected sperm parameters in male wistar rats. Thus, people who consume the plant extracts should be careful and medical practitioners who prescribe Viscum album in the management of chronic diseases should be cautious.


Author(s):  
Olubukola H. Oyeniran ◽  
Adedayo O. Ademiluyi ◽  
Ganiyu Oboh

Abstract Objectives Mistletoe infests common plant trees of great medicinal values such as Moringa and Almond. According to folklore, mistletoe leaves have been found to have application as food and medicine in the alleviation of various degenerative diseases. Host–parasite relationship may possibly influence the phytochemical and biological activities of mistletoe leaves. Hence, we examined the polyphenol contents, antioxidant properties, α-amylase, α-glucosidase, acetylcholinesterase (AChE) and monoamine oxidase (MAO) inhibitory activities of African mistletoe leaves obtained from Moringa and Almond host plants in fruit fly in vitro. Methods The phenolic constituents of the leaves were evaluated using HPLC system. The antioxidant activities were determined through the ABTS, DPPH and OH free radicals scavenging properties, ferric (Fe3+) and malondialdehyde (MDA) reducing abilities and Fe2+ chelation. The inhibitory effects of the leaves aqueous extracts on α-amylase, α-glucosidase, AChE and MAO activities were also assessed. Results The HPLC characterization of the leaves revealed that host plants caused marked variation in their phenolic composition, however, Almond mistletoe leaves had significantly (p<0.05) greater amounts of phenolic constituents. Both Moringa and Almond mistletoe leaves reduced Fe3+ and MDA levels, scavenged free radicals, chelated Fe2+ and inhibited α-amylase, α-glucosidase, AChE and MAO activities with the Almond mistletoe leaves having significantly (p<0.05) higher antioxidant properties and enzyme inhibitory activities. Conclusions This present study indicated that host plants could positively modulate the phenolic profile of mistletoe leaves and this probably brought about the vivid noticeable changes in their antioxidant abilities, cholinergic, monoaminergic and carbohydrate hydrolyzing enzymes inhibitory activities.


Biologia ◽  
2010 ◽  
Vol 65 (5) ◽  
Author(s):  
Cengiz Türe ◽  
Harun Böcük ◽  
Zerrin Aşan

AbstractParasitism of plants by other plants provides an exceptional opportunity for investigating correlative nutritional relationships. Because of lacking a usual plant-root sytem capable of active uptake, the best correlation for predicting the concentrations of elements in parasitic plants is often those in the host plants. This study, therefore, mainly focuses on determination of i) mineral nutrient partitioning between hemi-parasitic white berry mistletoe (Viscum album L. subsp. album) and four of its deciduous hosts growing in different habitats namely wetland and semi-arid and ii) effects of these habitat types on nutrient absorption. During the research, leaf samples of both hemi-parasites and their host plants were chemically analysed, mistletoes on each host plants were counted and the results were considered statistically. Concentrations of some elements (N, P, K, Na, S, Cu, Zn) were higher in mistletoe whereas some others (Ca, Mg, Fe, Mn and B) were higher in the hosts (p< 0.05). Habitat type was also determined to be effective in host-parasite systems. Revealing information about nutritional interactions between multi-host hemi-parasites and their host plants is a useful tool to understand their functions in ecosystems, population-community dynamics and their co-evolution process.


2021 ◽  
Vol 14 (14) ◽  
pp. 83-89
Author(s):  
Kranti Kumal ◽  
Deepak Raj Pant ◽  
Biva Aryal ◽  
Giri Raj Tripathi ◽  
Giri Prasad Joshi

Mistletoes are being used for food or beverage and for variety of medicinal purposes. In Nepal, mistletoes are traditionally used as fodder and as remedy to cure various ailments. In this study, methnolic extracts of seven common mistletoe species (Helixanthera ligustrina, Macrosolen cochinchinensis, Scurrula elata, S. parasitica, Viscum album, V. articulatum and V. liquidambaricola) were analyzed for their phytochemical constituents and antioxidant potential. The total flavonoid content (TFC) and total phenol content (TPC) were quantitatively determined by aluminum chloride colorimetric and folin-cioalteau reagent methods, respectively. The TFC was found highest for V. album (31.5 ± 2.3 mg QE/g) and lowest for M. cochinchinensis (24.9 ± 2.3 mg QE/g). Similarly, highest total phenolic content was found in S. parasitica (32.9 ± 2.5 mg GAE/g) and lowest in V. album (20.6 ± 2.1 mg GAE/g). The antioxidant activity measured by DPPH radical scavenging assay was found best for S. parasitica (with lowest IC₅₀ value; 26.0 ± 0.7 µg/ml) among the studied mistletoes. Overall analysis provides scientific evidence in favor of indigenous use of these mistletoes as a source of fodder, food and for medicinal purposes


Author(s):  
Fatma Ergün

In this study, it was determined that total phenolic and flavonoid substance amounts and antioxidant capacity of methanol extracts obtained from leaves (Y) and buds (T) of mistletoe (V. album ssp. Austriacum) collected from Northeast Anatolian Yellow Pine forests (Pinus sylvestris L). The amount of total phenolic substance was determined as 19.55 ±4.68 mg GAE/g in Y and 16.88 ±2.77 mg GAE/g in T, while amount of total flavonoid substance 17.56 ±2.53 mg QE/g in Y and 17.17 ±3.29 mg QE/g in T. IC50 values were calculated as 476.26 ±22.54 μg/mL in Y and 778.57±25.61 μg/mL in T. In addition, the reducing antioxidant powers of Fe3+-Fe2+ were calculated as 303.00 ±1.73 μg AAE/mL in Y and 307.01±1.05 μg AAE/mL in T, equivalent to ascorbic acid. As a result, it was seen that mistletoe which is considered harmful for yellow pines, has antioxidant properties. It has been concluded that the evaluation of mistletoe collected during the struggle with mistletoe as a natural antioxidant source may contribute economically.


Sign in / Sign up

Export Citation Format

Share Document