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https://www.readbyqxmd.com/read/27694009/involvement-of-metabolites-in-early-defense-mechanism-of-oil-palm-elaeis-guineensis-jacq-against-ganoderma-disease
#1
S A Nusaibah, A Siti Nor Akmar, A S Idris, M Sariah, Z Mohamad Pauzi
Understanding the mechanism of interaction between the oil palm and its key pathogen, Ganoderma spp. is crucial as the disease caused by this fungal pathogen leads to a major loss of revenue in leading palm oil producing countries in Southeast Asia. Here in this study, we assess the morphological and biochemical changes in Ganoderma disease infected oil palm seedling roots in both resistant and susceptible progenies. Rubber woodblocks fully colonized by G. boninense were applied as a source of inoculum to artificially infect the roots of resistant and susceptible oil palm progenies...
September 19, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27605841/in-vitro-anthelmintic-assessment-of-selected-phytochemicals-against-hymenolepis-diminuta-a-zoonotic-tapeworm
#2
Vijaya, Arun K Yadav
A large number of medicinal plants are used as herbal remedy for the treatment of helminthic diseases in the developing countries, however, far too little attention has been paid to assess the anthelmintic potentials of chemical compounds that are present in these plants. This study was carried out to assess the in vitro anthelmintic effects of biochanin A, ursolic acid, betulinic acid and beta-sitosterol which are the major phytochemicals of Trifolium repens, Houttuynia cordata and Lasia spinosa, the traditionally used anthelmintic plants of Northeast India...
September 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27245322/antifilarial-activity-of-diterpenoids-from-taxodium-distichum
#3
Vikas Kushwaha, Kirti Saxena, Richa Verma, Shiv K Verma, Deepali Katoch, Neeraj Kumar, Brij Lal, P Kalpana Murthy, Bikram Singh
BACKGROUND: Lymphatic filariasis caused by Wuchereria bancrofti, Brugia malayi and B. timori, is a debilitating disease with an adverse social and economic impact. The infection remains unabated in spite of treatment with existing antifilarial drugs diethylcarbamazine (DEC) and ivermectin which are chiefly microfilaricides. There is therefore, need for macrofilaricides, embryostatic agents and better microfilaricides. In the present study we explored the antifilarial potential of crude extract and its molecular fractions of the plant Taxodium distichum using in vitro assay systems and rodent models of B...
2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27241252/exploring-neuroprotective-potential-of-withania-somnifera-phytochemicals-by-inhibition-of-glun2b-containing-nmda-receptors-an-in-silico-study
#4
Gaurav Kumar, Ranjana Patnaik
N-methyl-d-aspartate receptors (NMDARs) mediated excitotoxicity has been implicated in multi-neurodegenerative diseases. Due to lack of efficacy and adverse effects of NMDA receptor antagonists, search for herbal remedies that may act as therapeutic agents is an active area of research to combat these diseases. Withania somnifera (WS) is being used for centuries as a nerve tonic and Nootropic agents. The present study targets the in silico evaluation of the neuroprotective efficacy of W. somnifera phytochemicals by inhibition of NMDA receptor-mediated excitotoxicity through allosteric inhibition of the GluN2B containing NMDARs...
July 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27162187/a-computational-model-to-predict-the-immune-system-activation-by-citrus-derived-vaccine-adjuvants
#5
Francesco Pappalardo, Epifanio Fichera, Nicoletta Paparone, Alessandro Lombardo, Marzio Pennisi, Giulia Russo, Marco Leotta, Francesco Pappalardo, Alessandro Pedretti, Francesco De Fiore, Santo Motta
MOTIVATION: Vaccines represent the most effective and cost-efficient weapons against a wide range of diseases. Nowadays new generation vaccines based on subunit antigens reduce adverse effects in high risk individuals. However, vaccine antigens are often poor immunogens when administered alone. Adjuvants represent a good strategy to overcome such hurdles, indeed they are able to: enhance the immune response; allow antigens sparing; accelerate the specific immune response; and increase vaccine efficacy in vulnerable groups such as newborns, elderly or immuno-compromised people...
September 1, 2016: Bioinformatics
https://www.readbyqxmd.com/read/27141676/-steroids-and-aromatic-derivatives-from-euphorbia-micractina
#6
Yao-wu Tao, Wen-dong Xu, Ye Tian, Jian-gong Shi
From an ethanol extract of Euphorbia micractina roots, seven steroids fifteen aromatic derivatives were isolated by a combination of various chromatographic techniques, including column chromatography over macroporous resin, silica gel, and Sephadex LH-20 and reversed-phase HPLC. Their structures were elucidated by spectroscopic data analysis as stigamast-5-ene-3beta, 7alpha-diol(1), stigamast-5-ene-3beta,7beta-diol(2), stigmast-5-en-3beta-ol-7-one(3), stigmast-4-en-6beta-ol-3-one(4), stigmast-1, 4-dien-3-one(5), stigmast-3,6-dione(6), beta-sitosterol(7), scopoletin(8), aesculetin(9), 6-hydroxy-5,7-dimethoxycoumarin(10), quercetin(11), 3,3', 4'-tri-O-methylellagic acid(12), p-hydroxyphenylethyl anisate(13), m-hydroxyphenylethyl alcohol(14), (E)-cinnamic acid(15), (E)-ferulic acid(16), 3,4-dihydroxybenzoic acid(17), vanillic acid(18), p-hydroxybenzoic acid(19), ethyl 3,4-dihydroxybenzoate (20), ethyl gallate(21), and methyl gallate(22)...
December 2015: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/27046953/components-of-boiogito-suppress-the-progression-of-hypercholesterolemia-and-fatty-liver-induced-by-high-cholesterol-diet-in-rats
#7
Weibin Qian, Junichi Hasegawa, Xinrui Cai, Jie Yang, Yoshitaka Ishihara, Bingqiong Ping, Satoshi Tsuno, Yusuke Endo, Akiko Matsuda, Norimasa Miura
BACKGROUND: Ogi, one main component of boiogito (BOT), is reported to have an effect on hypercholesterolemia and NAFLD. In this experiment, we examined effects of ogi on the progression of hypercholesterolemia and fatty liver induced by high-cholesterol diet in rats and compared with the effects of ogi combined with ginger or hesperidin. METHODS: Hypercholesterolemia and fatty liver were induced by a high cholesterol diet in rats. Extract of ogi, ogi with hesperidin, and ogi with ginger were added to the high-cholesterol diet, respectively...
March 2016: Yonago Acta Medica
https://www.readbyqxmd.com/read/26990224/blockade-of-androgen-markers-using-a-novel-betasitosterol-thioctic-acid-and-carnitine-containing-compound-in-prostate-and-hair-follicle-cell-based-assays
#8
Li Chen, Jiaolong Wang, Glen Mouser, Yan Chun Li, Geno Marcovici
Androgenetic alopecia (AGA) affects approximately 70% of men and 40% of women in an age-dependent manner and is partially mediated by androgen hormones. Benign prostatic hyperplasia (BPH) similarly affects 50% of the male population, rising by 10% each decade. Finasteride inhibits 5-alpha reductase (5AR) and is used to treat both disorders, despite offering limited clinical benefits accompanied by significant adverse side effects. Building on our previous work demonstrating the efficacy of naturally derived 5AR inhibitors (such as stigmasterol and beta sitosterol), we hypothesize that targeting 5AR as well as inflammatory pathways may yield improved efficacy in AGA and BPH...
June 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/26710827/a-new-coumarin-from-stem-bark-of-mesua-hexapetala
#9
Thiruventhan Karunakaran, Gwendoline Cheng Lian Ee, Soek Sin Teh, Shaari Daud, Siau Hui Mah, Chan Kiang Lim, Vivien Yi Mian Jong, Khalijah Awang
A new alkylated coumarin derivative, hexapetarin (1) along with three other xanthones, trapezifolixanthone (2), cudraxanthone G (3) and 1,3,7-trihydroxy-2,4-di (3-methyl-2-butenyl)xanthone (4), and four common triterpenoids, friedelin (5), stigmasterol (6), beta-sitosterol (7) and gamma-sitosterol (8) were isolated from the stem bark of Mesua hexapetala (Clusiaceae), a plant, native to Malaysia. The structures of these compounds were elucidated and determined using spectroscopic techniques such as NMR and MS...
July 2016: Natural Product Research
https://www.readbyqxmd.com/read/26697686/chemical-constituents-from-branch-of-fraxinus-sieboldiana
#10
Sheng Lin, Yan-ling Zhang, Ming-tao Liu, Jia-chen Zi, Mao-luo Gan, Wei-xia Song, Xiao-na Fan, Xiao-na Wang, Yong-chun Yang, Jian-gong Shi
Using a combination of various chromatographic techniques including column chromatography over silica gel, Sephadex LH-20, macroporous adsorbent resin, and reversed-phase HPLC, 115 compounds including diterpenes, sesquiterpenes, treterpenes, coumarins, lignans, fatty acid derivatives, and simple aromatic derivatives were isolated from an ethanol extract of branch of Fraxinus sieboldiana (Oleaceaue), and their structures of the compounds were elucidated by spectroscopic methods including 1 D, 2D NMR and MS techniques...
July 2015: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/26473555/beta-sitosterol-a-promising-but-orphan-nutraceutical-to-fight-against-cancer
#11
Muhammad Shahdaat Bin Sayeed, Syeda Sadia Ameen
All the currently available cancer therapeutic options are expensive but none of them are safe. However, traditional plant-derived medicines or compounds are relatively safe. One widely known such compound is beta-sitosterol (BS), a plant derived nutrient with anticancer properties against breast cancer, prostate cancer, colon cancer, lung cancer, stomach cancer, ovarian cancer, and leukemia. Studies have shown that BS interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation...
2015: Nutrition and Cancer
https://www.readbyqxmd.com/read/26464047/tuberculosis-and-nature-s-pharmacy-of-putative-anti-tuberculosis-agents
#12
REVIEW
Kazhila C Chinsembu
Due to the growing problem of drug resistant Mycobacterium tuberculosis strains, coupled with the twinning of tuberculosis (TB) to human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS), the burden of TB is now difficult to manage. Therefore, new antimycobacterial agents are being sought from natural sources. This review focuses on natural antimycobacterial agents from endophytes and medicinal plants of Africa, Europe, Asia, South America and Canada. In the countries mentioned in this review, numerous plant species display putative anti-TB activity...
January 2016: Acta Tropica
https://www.readbyqxmd.com/read/26304403/phytosterols-in-onion-contribute-to-a-sensation-of-lingering-of-aroma-a-koku-attribute
#13
Toshihide Nishimura, Ai Saiga Egusa, Akira Nagao, Tsutomu Odahara, Takeshi Sugise, Noriko Mizoguchi, Yasuharu Nosho
We aimed to examine the substance in a precipitate of heat-treated onion concentrate (HOC) that contributes to a sensation of lingering of aroma, a koku attribute induced by the sensing of richness and persistence in terms of taste, aroma and texture. Adding precipitate, separated from HOC, to consommé enhanced the lingering sensation of aroma in the consommé more than adding the supernatant from HOC. After the precipitate was washed with hot water and ethanol its enhancing effect disappeared. Analysis of the HOC precipitate showed that it contained phytosterols, such as beta-sitosterol and stigmasterol...
February 1, 2016: Food Chemistry
https://www.readbyqxmd.com/read/26268617/an-evidence-based-systematic-review-of-beta-sitosterol-sitosterol-22-23-dihydrostigmasterol-24-ethylcholesterol-by-the-natural-standard-research-collaboration
#14
REVIEW
Catherine E Ulbricht
An evidence-based systematic review of beta-sitosterol, sitosterol (22,23-dihydrostigmasterol, 24-ethylcholesterol) by the Natural Standard Research Collaboration consolidates the safety and efficacy data available in the scientific literature using a validated, reproducible grading rationale. This article includes written and statistical analysis of clinical trials, plus a compilation of expert opinion, folkloric precedent, history, pharmacology, kinetics/dynamics, interactions, adverse effects, toxicology, and dosing...
2016: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/26246431/identification-of-beta-sitosterol-and-stigmasterol-in-bambusa-bambos-l-voss-leaf-extract-using-hplc-and-its-estrogenic-effect-in-vitro
#15
Sandhiya Sriraman, Ganesh Munuswamy Ramanujam, MohanKumar Ramasamy, Govind Prasad Dubey
Focus of the study is to identify a safe alternate to Hormone Replacement Therapy by identifying the presence of β-sitosterol and stigmasterol in the hydroalcoholic extract of Bambusa bambos using HPTLC and RP-HPLC-PDA; by evaluating the estrogenic effects of extract containing β-sitosterol and stigmasterol on the growth of MCF-7 cells in vitro. Plant material was identified by DNA sequencing analysis. Presence of β-sitosterol and stigmasterol was confirmed by HPTLC and direct RP-HPLC-PDA. Peaks with retention time about 19...
November 10, 2015: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/26199005/occurrence-of-1153-organic-micropollutants-in-the-aquatic-environment-of-vietnam
#16
H T C Chau, K Kadokami, H T Duong, L Kong, T T Nguyen, T Q Nguyen, Y Ito
The rapid increase in the number and volume of chemical substances being used in modern society has been accompanied by a large number of potentially hazardous chemicals being found in environmental samples. In Vietnam, the monitoring of chemical substances is mainly limited to a small number of known pollutants in spite of rapid economic growth and urbanization, and there is an urgent need to examine a large number of chemicals to prevent impacts from expanding environmental pollution. However, it is difficult to analyze a large number of chemicals using existing methods, because they are time consuming and expensive...
July 22, 2015: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/25857161/-study-on-chemical-constituents-of-toddalia-asiatica
#17
Zhi-gang Liu, Xiang-yu Wang, Bei-ping Mao, Xiao-ling Xie
OBJECTIVE: To investigate the chemical constituents of Toddalia asiatica. METHODS: The compounds were isolated and pu- rified by column chromatography and their structures were identified on the basis of physicochemical properties and spectral data analysis. RESULTS: Sixteen compounds were isolated and identified as zanthocadinanine A(1), pimpinellin(2), isopimpinellin(3), phellopterin (4), armottianamide(5), chelerythrine(6), nitidine(7), chlorogenic acid (8), toddalolactone (9), protopine(10), skimmianine(11), dictamine(12), toddalenone(13), beta-sitosterol(14), bergapten(15) and 8-hydroxy-6-methoxycoumarin(16)...
September 2014: Zhong Yao Cai, Zhongyaocai, Journal of Chinese Medicinal Materials
https://www.readbyqxmd.com/read/25857160/-chemical-constituents-of-scrophularia-ningpoensis-root
#18
Gang-qiang Xue, Jing Du, Xin-yan Pan, Hui Gao, Zhi-yong Sun, Yang Zhang, Shu-li Gao
OBJECTIVE: To investigate the chemical constituents from Scrophularia ningpoensis root. METHODS: The compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. The structures of these compounds were elucidated on the basis of spectroscopic analysis. RESULTS: Eleven compounds were isolated and identified as vanillin (1), eugenol (2), isoeugenol methyl ether(3), ferulic acid(4), benzoic acid(5), syringic acid(6) ,rhamnopyranosyl vanilloyl(7), syringic acid-4-O-alpha-L-rhamnopyr-anoside(8), beta-sitosterol(9), adenosine (10) and dibutyl phthalate(11)...
September 2014: Zhong Yao Cai, Zhongyaocai, Journal of Chinese Medicinal Materials
https://www.readbyqxmd.com/read/25768115/the-in-vitro-antifungal-activity-of-sudanese-medicinal-plants-against-madurella-mycetomatis-the-eumycetoma-major-causative-agent
#19
Hassabelrasoul Elfadil, Ahmed Fahal, Wendy Kloezen, Elhadi M Ahmed, Wendy van de Sande
Eumycetoma is a debilitating chronic inflammatory fungal infection that exists worldwide but it is endemic in many tropical and subtropical regions. The major causative organism is the fungus Madurella mycetomatis. The current treatment of eumycetoma is suboptimal and characterized by low cure rate and high recurrence rates. Hence, an alternative therapy is needed to address this. Here we determined the antifungal activity of seven Sudanese medicinal plant species against Madurella mycetomatis. Of these, only three species; Boswellia papyrifera, Acacia nubica and Nigella sativa, showed some antifungal activity against M...
March 2015: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/25740442/diversity-of-active-constituents-in-cichorium-endivia-and-cynara-cornigera-extracts
#20
Ahmad K Hegazy, Shahira M Ezzat, Iman B Qasem, Mohamed S Ali-Shtayeh, Mohammed O Basalah, Hayssam M Ali, Ashraf A Hatamleh
The present study attempts to explore the phytochemical constituents of different extracts from Cynara cornigera and Cichorium endivia plant materials. The two species studied are native in Egypt. Five different solvents, viz., aqueous, methylene chloride, petroleum ether, ethyl acetate, and n-butanol were used. Phytochemical analysis revealed the presence of phenols, flavonoids, sterols (stigmasterol and beta-sitosterol), terpenes (α-amyrin, ursolic and oleanolic acid), and hydrocarbons (n-alkane), the latter found in low amount...
March 2015: Acta Biologica Hungarica
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