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Hepatoprotective and Antioxidant Activities of Amaranthus viridis Linn  [PDF]
Ashok Kumar BS,Lakshman K,Narayan Swamy VB,Arun Kumar PA
Macedonian Journal of Medical Sciences , 2011,
Abstract: Aim: To study heaptoprotective activity of methanolic extract of whole plant of Amaranthus viridis Linn (MeAv) in paracetamol (PCM) induced hepatotoxicity. Materials and Methods: MeAv was screened for hepatoprotective activity in PCM (3 g/kg) induced hepatotoxicity in Wistar rats for 15 days at dose of 200 and 400 mg/kg by measuring liver marker enzymes (serum glutamate pyruvate transaminase and serum glutamate oxaloacetate transaminase), bilirubin (total bilirubin and direct bilirubin) and albumin (ALB), total protein (TP) levels and histopathological studies. Antioxidant activities were studies by measuring malondialdehyde (MDA), reduced glutathione (GSH), catalase (CAT) and total thiols (TT) in liver homegenate of treated animals.Results: MeAv significantly (P<0.001) decreases the elevated liver marker enzymes (serum glutamate pyruvate transaminase and serum glutamate oxaloacetate transaminase), bilirubin (total bilirubin and direct bilirubin) and restores albumin (ALB), total protein (TP) levels. A histopathological study also showed liver protective activity of MeAv. In in vivo antioxidant studies, the MeAv has significantly restored the malondialdehyde (MDA), reduced glutathione (GSH), catalase (CAT) and total thiols. Conclusion: In conclusion, administration of MeAv for 15 days showed liver protective activity against paracetamol induced liver damage and the potential antioxidant property of MeAv thought to be the mechanism behind its hepatoprotective activity.
Antinociceptive and antipyretic activities of Amaranthus viridis Linn. in different experimental models
Kumar Ashok B.S.,Lakshman K.,Jayaveera K.N.,Shekar Sheshadri D.
Archives of Biological Sciences , 2010, DOI: 10.2298/abs1002397k
Abstract: The methanolic extract of the whole plant extract of Amaranthus viridis L (MEAV) was screened for antinociceptive activity using the acetic acid writhing test, hot plate test and tail immersion test in mice and for antipyretic activity using the yeast-induced pyrexia method in rats, at doses of 200 and 400 mg/kg body weight. Significant (p<0.01) dose-dependent antinociceptive and antipyretic properties were observed with 200 and 400 mg/kg.
Interferência interespecífica entre Amaranthus hybridus L. e Amaranthus viridis L.
Maluf, Angela Maria;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000500001
Abstract: the objective of this paper was to study the interspecific interference between two amaranthus species ? a. viridis and a. hybridus ?, the latter with two distinct biotypes (green and purple); both species ocurred in two localities. in the populations of each of the locations, some independent substitution trials were made in pots, and it could be concluded that the populations that germinate more readily are those which are superior in competition i.e., those that establish themselves and produce the largest number of seeds. there was a tendency for a. hybridus (green biotype) to dominate both a. hybridus (purple biotype) and a. viridis, and for a. hybridus (purple biotype) to dominate a. viridis. in mixed stands, there were cases where the species were competing for the same resources, cases where they were exploiting different environmental resources, and even cases of mutual antagonism.
Sensitization to indigenous pollen and molds and other outdoor and indoor allergens in allergic patients from Saudi Arabia, United Arab Emirates, and Sudan
SM Hasnain, AR Al-Frayh, JL Subiza, Enrique Fernández-Caldas, M Casanovas, T Geith, MO Gad-El-Rab, E Koshak, H Al-Mehdar, S Al-Sowaidi, H Al-Matar, R Khouqeer, K Al-Abbad, M Al-Yamani, E Alaqi, OA Musa, S Al-Sedairy
World Allergy Organization Journal , 2012, DOI: 10.1097/wox.0b013e31825a73cd
Abstract: To evaluate the prevalence of positive skin tests to pollen and fungal allergens collected from local indigenous plants or isolated molds, as well as other outdoor and indoor allergens in allergic patients in 6 different geographical areas in the Kingdom of Saudi Arabia (KSA), the United Arab Emirates, and Sudan. Materials and methods:: Four hundred ninety-two consecutive patients evaluated at different Allergy Clinics (276 women and 256 men; mean age, 30 years) participated in this study. The selection of indigenous allergens was based on research findings in different areas from Riyadh and adjoining areas. Indigenous raw material for pollen grains was collected from the desert near the capital city of Riyadh, KSA. The following plants were included: Chenopodium murale, Salsola imbricata, Rumex vesicarius, Ricinus communis, Artiplex nummularia, Amaranthus viridis, Artemisia monosperma, Plantago boissieri, and Prosopis juliflora. Indigenous molds were isolated from air sampling in Riyadh and grown to obtain the raw material. These included the following: Ulocladium spp., Penicillium spp., Aspergillus fumigatus, Cladosporium spp., and Alternaria spp. The raw material was processed under Good Manufacturing Practices for skin testing. Other commercially available outdoor (grass and tree pollens) and indoor (mites, cockroach, and cat dander) allergens were also tested.The highest sensitization to indigenous pollens was detected to C. murale (32%) in Khartoum (Sudan) and S. imbricata (30%) and P. juliflora (24%) in the Riyadh region. The highest sensitization to molds was detected in Khartoum, especially to Cladosporium spp. (42%), Aspergillus (40%), and Alternaria spp. (38%). Sensitization to mites was also very prevalent in Khartoum (72%), as well as in Abu Dhabi (United Arab Emirates) (46%) and Jeddah (KSA) (30%).The allergenicity of several indigenous pollens and molds derived from autochthonous sources was demonstrated. Prevalence studies in different regions of KSA
Annals of West University of Timi?oara : Series of Biology , 2007,
Abstract: The most predominant source of allergens in the outdoor environment is pollen, the male gametophyte of flowering plants. Allergenic pollen has been identified in many flowering plant species including grass, weed, tree and crop species. Occurrence of pollens is monitored almost throughout Europe. We report here the results of the monitoring of airborne pollen concentrations throughout 1999 to 2007 from Timi oara (Romania). A total of 18 allergenic pollen types were identified of which Ambrosia artemisiifolia pollen showed maximum concentration. Pollens of many plants located in public or private gardens may cause pollinosis in predisposed individuals. In this study we suggest a list of recommended plants for public and private green.
Competi??o intra-específica entre Amaranthus hybridus L. e Amaranthus viridis L.
Maluf, Angela Maria;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000800001
Abstract: intraspecific competition trials were carried out for amaranthus viridis l. and a. hybridus l., the latter species with two distinct biotypes, a green and a purple type. three independent trials were made, with five different seed densities per pot for each species or biotype. in general terms, seeds that germinated promptly were responsible for the formation of the next generation, these early seedlings being more competitive. the carrying capacity was reached with 20 seeds per pot, no increase in the number of adult plants observed by increasing the seed density. this shows that the environmental suporting capacity, not the size of the seed bank in the soil, regulates the population size. a similar conclusion holds true for dry matter yield. under competition, the species a. hybridus - green biotype and a. viridis produced larger biomass for reproductive structures (22% to 34%) than a. hybridus - purple biotype (15% to 18%), the former species being therefore better r-strategists than the latter.
Suppression of Meloidogyne javanica by Conyza canadensis, Blumea obliqua, Amaranthus viridis and Eclipta prostrata  [PDF]
Zarina Begum,S. Shahid Shaukat,Imran A. Siddiqui
Plant Pathology Journal , 2003,
Abstract: Aqueous shoot extract of four weed species including Conyza canadensis, Blumea obliqua, Amaranthus viridis and Eclipta prostrata inhibited egg hatch and caused mortality of Meloidogyne javanica, the root-knot nematode juveniles in vitro to varying extent with A. viridis being the most effective. The efficacy of the powdered shoot material as soil organic amendment was tested against two nematode inoculum levels (2000 and 4000 J2 pot G 1) in a pot experiment. Soil amendment with the powdered shoot material generally reduced nematode population density, root-knot development and reproductive potential of M. javanica in brinjal roots. A. viridis was most effective in the suppression of root-knot nematode at both the nematode inoculum rates but caused slightly reduction in plant growth presumably owing to its allelopathic activity in soil.
Evaluation of Antifungal Activity of Amaranthus viridis L. (Amaranthaceae) on Fusariosis by Piper nigrum L. and on Anthracnose by Musa sp.
Bruna Carminate,Giordano Bruno Martin,Roney Martinho Barcelos,Ivoney Gontijo,Marcelo Suzart de Almeida,Valdenir Jose Belinelo
Agricultural Journal , 2013, DOI: 10.3923/aj.2012.215.219
Abstract: The plants have investigated in the search for new substances against microorganisms resistant to current pesticides and antibiotics. The aim of this research was to evaluate the existence of antiphytopathogenic properties of organic extracts from the leaves of amaranth (Amaranthus viridis L.), Amaranthaceae, popularly known as caruru. The hexanic, dichloromethanic, ethylic acetate and ethanolic extracts were obtained, respectively with yields of 2.2, 2.4, 3.2 and 3.6% (m/m). These extracts were used to determine the Minimum Inhibitory Concentration (MIC), through dilution technique using 96 well microplate. After reading the CIM in wells where no fungal growth was observed, the Minimum Fungicidal Concentration (MFC) was determined on plates containing dextrose Sabouraud agar. The experiments with the extracts of Amaranthus indicates activity against the fungi Colletotrichum musae (Berk. and Curt.) Arx, causing anthracnose of banana and against Fusarium solani f. sp. piperis responsible for fusariosis in black pepper. In relation to Colletotrichum musae extracts obtained with dichloromethane, ethyl acetate and ethanol, the MIC ranged from 15.6-250.0 μg mL-1. The hexanic, ethylic acetate and ethanolic extracts showed activity against Fusarium solani with MIC ranging from 31.2-250.0 μg mL-1. Through this research was showed the presence of antifungal constituents in extracts of Amaranthus viridis L., revealing its potential antimicrobial effect against these two phytopathogenic strains tested.
Immunochemical Characterization of Amaranthus Retroflexus Pollen Extract: Extensive Cross-Reactive Allergenic Components Among the Four Species of Amaranthaceae/Chenopodiaceae
Mohsen Tehrani,Mojtaba Sankian,Mohammad Ali Assarehzadegan,Reza Falak
Iranian Journal Of Allergy, Asthma and Immunology , 2010,
Abstract: The importance of Amaranthus retroflexus pollen in causing respiratory allergy has been well ascertained in many countries including Iran with a high positive rate (69%) among Iranian allergic patients. The aim of the present study is to identify the allergenic properties of A. retroflexus pollen. Sixteen patients with allergy to A. retroflexus pollen were selected for the study. The antigenic and allergenic profiles of the A. retroflexus pollen extract as well as pollen extracts from other species of the Amaranthaceae/Chenopodiaceae family, including Chenopodium album, Kochia scoparia, and Salsola kali, were evaluated by ELISA, immunoblotting, and immunoblot inhibition assays. The resolved protein fractions on SDS-PAGE ranged from 10-85 kDa. Several allergenic components (MW 85, 45, 39, 18, 15, and 10 kDa) of the A. retroflexus pollen extract were recognized by using patients' sera by specific antibody of IgE class using ELISA and immunoblot assays. The IgE reactivity of the A. retroflexus pollen extract was partially inhibited by all three pollen extracts tested. the inhibition by the S. kali pollen extract was more than those by other pollen extracts. Moreover, the wheal diameters by the A. retroflexus pollen extract were highly correlated with those by C. album, K. scoparia and S. kali pollen extracts. In conclusion, three proteins with apparent MWs of 39, 45, and 66 kDa are suggested as the common allergenic components among the four pollens from the Amaranthaceae/Chenopodiaceae family. It appears that there are some common (similar) epitopes among the four common allergenic pollens.
Caracteriza??o preliminar de Amaranthus hybridus L. e Amaranthus viridis L. através de isoenzimas
Maluf, Angela Maria;Martins, Paulo Sodero;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1991, DOI: 10.1590/S0071-12761991000100003
Abstract: through starch gel electrophoresis with horizontal migration, amaranthus hybridus green biotype was the only accession to show variation in esterase patterns, with presence or absence of a band in position 0.7. on the other hand, all species and biotypes (a.viridisand a.hybridus green and purple biotypes) showed variation in banding patterns for peroxidase. through the existence of common bands to both species, one could detect evidence for hybridization and introgression between them.
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