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https://www.readbyqxmd.com/read/29348717/high-performance-liquid-chromatography-analysis-of-phytosterols-in-panax-ginseng-root-grown-under-different-conditions
#1
Dong Gu Lee, Jaemin Lee, Kyung-Tack Kim, Sang-Won Lee, Young-Ock Kim, Ik-Hyun Cho, Hak-Jae Kim, Chun-Gun Park, Sanghyun Lee
Background: The Panax ginseng plant is used as an herbal medicine. Phytosterols of P. ginseng have inhibitory effects on inflammation-related factors in HepG2 cells. Methods: Phytosterols (e.g., stigmasterol and β-sitosterol) in the roots of P. ginseng grown under various conditions were analyzed using high-performance liquid chromatography. The P. ginseng roots analyzed in this study were collected from three cultivation areas in Korea (i.e., Geumsan, Yeongju, and Jinan) and differed by cultivation year (i...
January 2018: Journal of Ginseng Research
https://www.readbyqxmd.com/read/29345907/effects-of-plant-sterols-and-or-%C3%AE-cryptoxanthin-at-physiological-serum-concentrations-on-suicidal-erythrocyte-death
#2
Andrea Alvarez-Sala, Gabriel López-García, Alessandro Attanzio, Luisa Tesoriere, Antonio Cilla, Reyes Barbera, Amparo Alegria
The eryptotic and hemolytic effects of a phytosterol (PS) mixture (β-sitosterol, campesterol, stigmasterol) and/or β-cryptoxanthin (β-Cx) at physiological serum concentration and their effect against oxidative stress induced by tert-butylhydroperoxide (tBOOH) (75 and 300 µM) were evaluated. β-Cryptoxanthin produced an increase in eryptotic cells, cell volume, hemolysis and glutathione depletion (GSH), without ROS overproduction and intracellular Ca2+ influx. Co-incubation of both bioactive compounds protected against β-Cx-induced eryptosis...
January 18, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29344416/lycium-barbarum-a-traditional-chinese-herb-and-a-promising-anti-aging-agent
#3
REVIEW
Yanjie Gao, Yifo Wei, Yuqing Wang, Fang Gao, Zhigang Chen
Lycium barbarum has been used in China for more than 2,000 years as a traditional medicinal herb and food supplement. Lycium barbarum contains abundant Lycium barbarum polysaccharides (LBPs), betaine, phenolics, carotenoids (zeaxanthin and β-carotene), cerebroside, 2-O-β-d-glucopyranosyl-l-ascorbic acid (AA-2βG), β-sitosterol, flavonoids and vitamins (in particular, riboflavin, thiamine, and ascorbic acid). LBPs are the primary active components of Lycium barbarum. In this review, we discuss the pharmacological activities of LBPs and other major components...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29342957/comparative-transcriptome-analysis-identifies-putative-genes-involved-in-steroid-biosynthesis-in-euphorbia-tirucalli
#4
Weibo Qiao, Changfu Li, Isidore Mosongo, Qin Liang, Mengdi Liu, Xin Wang
Phytochemical analysis of different Euphorbia tirucalli tissues revealed a contrasting tissue-specificity for the biosynthesis of euphol and β-sitosterol, which represent the two pharmaceutically active steroids in E. tirucalli. To uncover the molecular mechanism underlying this tissue-specificity for phytochemicals, a comprehensive E. tirucalli transcriptome derived from its root, stem, leaf and latex was constructed, and a total of 91,619 unigenes were generated with 51.08% being successfully annotated against the non-redundant (Nr) protein database...
January 15, 2018: Genes
https://www.readbyqxmd.com/read/29334954/association-between-non-cholesterol-sterol-concentrations-and-achilles-tendon-thickness-in-patients-with-genetic-familial-hypercholesterolemia
#5
Lucía Baila-Rueda, Itziar Lamiquiz-Moneo, Estíbaliz Jarauta, Rocío Mateo-Gallego, Sofía Perez-Calahorra, Victoria Marco-Benedí, Ana M Bea, Ana Cenarro, Fernando Civeira
BACKGROUND: Familial hypercholesterolemia (FH) is a genetic disorder that result in abnormally high low-density lipoprotein cholesterol levels, markedly increased risk of coronary heart disease (CHD) and tendon xanthomas (TX). However, the clinical expression is highly variable. TX are present in other metabolic diseases that associate increased sterol concentration. If non-cholesterol sterols are involved in the development of TX in FH has not been analyzed. METHODS: Clinical and biochemical characteristics, non-cholesterol sterols concentrations and Aquilles tendon thickness were determined in subjects with genetic FH with (n = 63) and without (n = 40) TX...
January 15, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29332591/anti-trypanosoma-cruzi-activity-in-vitro-of-phases-and-isolated-compounds-from-excoecaria-lucida-leaves
#6
Cristiane Franca da Silva, Ania Ochoa Pacheco, Rayane Nogueira Alves, Josean Fechine Tavares, Marcelo Sobral da Silva, Julio Cesar Escalona Arranz
BACKGROUND: Chagas disease is caused by the protozoan parasite Trypanosoma cruzi. This illness is found mainly in 21 Latin American countries and an estimated 8 million people are infected worldwide. The unsatisfactory chemotherapy provokes severe toxicity and resistant strains. Medicinal plants constitute a promising source of new drugs and remedies against all kinds of disorders, mainly infectious diseases arousing interest worldwide. OBJECTIVE: The aim of this study has been the isolation, structural identification and evaluation of the trypanocidal activity of samples present in the Excoecaria lucida Sw...
January 11, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29324705/influence-of-chitosan-treatment-on-surrogate-serum-markers-of-cholesterol-metabolism-in-obese-subjects
#7
Dieter Lütjohann, Milka Marinova, Karsten Wolter, Winfried Willinek, Norman Bitterlich, Martin Coenen, Christoph Coch, Frans Stellaard
Chitosan treatment results in significantly lower serum low density lipoprotein (LDL) cholesterol concentrations. To assess the working mechanisms of chitosan, we measured serum surrogate markers of cholesterol absorption (campesterol, sitosterol, cholestanol), synthesis (lathosterol, lanosterol, desmosterol), and degradation to bile acids (7α-hydroxy-cholesterol, 27-hydroxy-cholesterol), corrected for cholesterol concentration (R_sterols). Over 12 weeks, 116 obese subjects (Body Mass Index, BMI 31.7, range 28...
January 11, 2018: Nutrients
https://www.readbyqxmd.com/read/29320368/pobeguinine-a-monoterpene-indole-alkaloid-and-other-bioactive-constituents-from-the-stem-bark-of-nauclea-pobeguinii
#8
Jean J K Bankeu, Stéphanie Madjouka, Guy R T Feuya, Yannick S F Fongang, Sadaf Siddiqui, Iftikhar Ali, Lateef Mehreen, Bruno N Lenta, Sammer Yousuf, Didérot T Noungoué, Augustin S Ngouela, Muhammad S Ali
Phytochemical investigation of dichloromethane neutral phase of stem bark of Nauclea pobeguinii led to the isolation of a new monoterpene indole alkaloid, pobeguinine 1 along with 14 known compounds including (-)-naucleofficine D (2a), (+)-naucleofficine D (2b), naucleidinal (3), quafrinoic acid (4), betulinic acid (5), ursolic acid (6), quinovic acid (7), quinovic acid 3-O-α-L-rhamnopyranoside (8a), quinovic acid 3-O-β-D-fucopyranoside (8b), β-sitosterol (9), β-sitosterol 3-O-β-D-glucopyranoside (10), benzoic acid (11), lacceroic acid (12) and n-heptacosane (13)...
January 10, 2018: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/29311522/effect-of-the-harvest-time-on-oil-yield-fatty-acid-tocopherol-and-sterol-contents-of-developing-almond-and-walnut-kernels
#9
Bertrand Matthäus, Mehmet Musa Özcan, Fahad Al Juhaimi, Oladipupu Q Adiamo, Omer N Alsawmahi, Kashif Ghafoor, Elfadıl E Babiker
Oil content and bioactive properties of almond and walnut kernels were investigated in developing almond and walnut kernels at 10 days intervals. The oil contents of almond and walnuts after the first harvest (1.H) stage changed between 46.2% and 55.0% to 39.1% and 70.5%, respectively (p<0.05). Oleic acid contents of almond and walnut oils ranged from 71.98% (1.H) to 78.68% (5.H) and 10.51% (1.H) to 16.78% (2.H) depending on harvest (H) times, respectively (p<0.05). In addition, linolenic acid contents of walnut and almond oils were found between 62...
2018: Journal of Oleo Science
https://www.readbyqxmd.com/read/29286348/plant-based-beverages-as-good-sources-of-free-and-glycosidic-plant-sterols
#10
Anneleen I Decloedt, Anita Van Landschoot, Hellen Watson, Dana Vanderputten, Lynn Vanhaecke
To address the ever-growing group of health-conscious consumers, more and more nutritional and health claims are being used on food products. Nevertheless, only very few food constituents, including plant sterols, have been appointed an approved health claim (European Commission and Food and Drugs Administration). Plant sterols are part of those limited lists of approved compounds for their cholesterol-lowering properties but have been praised for their anti-inflammatory and anti-carcinogenic properties as well...
December 29, 2017: Nutrients
https://www.readbyqxmd.com/read/29281920/two-new-eremophilenolides-from-the-roots-of-ligulariopsis-shichuana-and-their-anti-phytopathogenic-fungal-and-antifeedant-activities
#11
Haibo Wu, Tingting Liu, Yuxuan Lian, Wenshu Wang
Two new eremophilenolides, ligushicins A (1) and B (2), and two known compounds including β-sitosterol and ursolic acid were isolated from Ligulariopsis shichuana. The structures of new compounds were established on the basis of 1D and 2D NMR data and HRESIMS data interpretation. The absolute configuration of new compounds was assigned by ECD spectroscopy, and that of ligushicins A (1) was confirmed by X-ray diffraction analysis. The antifungal and antifeedant activities of new compounds were evaluated against four plant pathogenic fungi and third-instar larvae of Plutella xylostella, respectively...
December 27, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29274328/preanalytical-and-analytical-challenges-in-gas-chromatographic-determination-of-cholesterol-synthesis-and-absorption-markers
#12
Tamara Gojkovic, Sandra Vladimirov, Vesna Spasojevic-Kalimanovska, Aleksandra Zeljkovic, Jelena Vekic, Jelena Arsenijevic, Ivana Djuricic, Sladjana Sobajic, Zorana Jelic-Ivanovic
INTRODUCTION: Cholesterol homeostasis disruption contributes to the development of different pathologies. Non-cholesterol sterols (NCSs) serve as cholesterol synthesis markers (desmosterol and lathosterol), and cholesterol absorption surrogate markers (campesterol, stigmasterol and β-sitosterol). The study aimed to resolve certain new pre-analytical and analytical problems and ensure a reliable and validated method. MATERIALS AND METHODS: Method optimization, validation and stability studies were executed in human serum and plasma...
December 20, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29235293/-chemical-constituents-from-petroleum-ether-fraction-of-swertia-chirayita-and-their-activities-in-vitro
#13
Rong-Rong You, Xue-Qing Chen, Dan-Dan He, Chang-Gao Huang, Yang Jin, Shi-Hui Qian, Jian-Ming Ju, Jun-Ting Fan
The present work is to study the chemical constituents from petroleum ether fraction of Tibetan medicine Swertia chirayita by column chromatography and recrystallization. The structures were identified by physical and chemical properties and spectral data as swerchirin (1), decussatin (2), 1,8-dihydroxy-3,5,7-trimethoxyxanthone (3), 1-hydroxy-3,5,7,8-tetramethoxyxanthone (4), bellidifolin (5), 1-hydroxy-3, 7-dimethoxyxanthone (6), methylswertianin (7), 1-hydroxy-3,5-dimethoxyxanthone (8), erythrodiol (9), oleanolic acid (10), gnetiolactone (11), scopoletin (12), sinapaldehyde (13), syringaldehyde (14), and β-sitosterol (15)...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29234979/neuroprotective-effects-of-moringa-oleifera-bio-guided-gc-ms-identification-of-active-compounds-in-diabetic-neuropathic-pain-model
#14
Karim Raafat, Fadi Hdaib
OBJECTIVES: To explore the phytotherapeutic-activities of Moringa oleifera (MO) seeds on painful diabetic neuropathy in alloxan-induced diabetic mice. METHODS: The bio-guided fractionation of MO utilizing column chromatography aided with GC-MS was used to detect the most active constituent of MO. Hyperalgesia, using tail-flick and hot-plate latency experiments, and mechanical-allodynia, utilizing von-Frey filaments, were evaluated before and after 8 weeks of intraperitoneal alloxan administration (180 mg/kg)...
December 12, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29233045/the-%C3%AE-amylase-and-%C3%AE-glucosidase-inhibitory-activities-of-the-dichloromethane-extracts-and-constituents-of-ferulago-bracteata-roots
#15
Songül Karakaya, Sefa Gözcü, Zühal Güvenalp, Hilal Özbek, Hafize Yuca, Benan Dursunoğlu, Cavit Kazaz, Ceyda Sibel Kılıç
CONTEXT: Ferulago (Apiaceae) species have been used since ancient times for the treatment of intestinal worms, hemorrhoids, and as a tonic, digestive, aphrodisiac, or sedative, as well as in salads or as a spice due to their special odors. OBJECTIVES: This study reports the α-amylase and α-glucosidase inhibitory activities of dichloromethane extract and bioactive compounds isolated from Ferulago bracteata Boiss. & Hausskn. roots. MATERIALS AND METHODS: The isolated compounds obtained from dichloromethane extract of Ferulago bracteata roots through bioassay-guided fractionation and isolation process were evaluated for their in vitro α-amylase and α-glucosidase inhibitory activities at 5000-400 µg/mL concentrations...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29228954/combination-of-berberine-and-evodiamine-inhibits-intestinal-cholesterol-absorption-in-high-fat-diet-induced-hyperlipidemic-rats
#16
Xin Zhou, Fengying Ren, Hong Wei, Liyun Liu, Tao Shen, Shijun Xu, Jiangping Wei, Jiayue Ren, Hengfan Ni
BACKGROUND: Hyperlipidemia characterized of elevated serum lipid levels is a prevalent disease frequently resulting in cardiovascular disease (CVD). Berberine and evodiamine are herbal products of traditional Chinese herb Coptis chinensis and Evodia rutaecarpa, which are indicated to exert regulation of lipid metabolism. Therefore, the objective of this study was to investigate the lipid-lowering effect of berberine and evodiamine combination in hyperlipidemic rats. METHOD: The rat model of hyperlipidemia was established by providing high-fat-diet (HFD) for 4 weeks...
December 11, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29221711/sitosterol-prevents-obesity-related-chronic-inflammation
#17
Makoto Kurano, Koji Hasegawa, Motoei Kunimi, Masumi Hara, Yutaka Yatomi, Tamio Teramoto, Kazuhisa Tsukamoto
The physiological roles of phytosterols in chronic inflammation, which are believed to be involved in the underlying mechanisms for metabolic diseases, have yet to be elucidated. Therefore, in the present study, we aimed to elucidate the physiological roles of phytosterols in both clinical studies and animal experiments. We observed the existence of rather specific negative correlations between the serum sitosterol level and the serum IL-6 and the TNF-α levels in both diabetic subjects (n=46) and non-diabetic subjects (n=178)...
December 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29206136/the-effects-of-phytosterols-extracted-from-diascorea-alata-on-the-antioxidant-activity-plasma-lipids-and-hematological-profiles-in-taiwanese-menopausal-women
#18
Chao-Chin Hsu, Hsin-Chih Kuo, Ko-En Huang
The efficacy of phytosterols extracted from Diascorea alata on antioxidant activities, plasma lipids and hematological profiles was assessed in postmenopausal women. Gas chromatography and mass spectrophotometry was employed to determine the steroid content of Taiwanese yam (Diascorea alata cv. Tainung No. 2). A two-center, randomized, double-blind, placebo-controlled clinical investigation on 50 postmenopausal women randomly assigned to two groups treated for 12 months with placebo or two sachets daily of Diascorea extracts containing 12 mg/dose was carried out...
December 5, 2017: Nutrients
https://www.readbyqxmd.com/read/29205802/a-two-center-assessor-blinded-prospective-trial-evaluating-the-efficacy-of-a-novel-hypertonic-draining-cream-for-cellulite-reduction-a-clinical-and-instrumental-antera-3d-cs-assessment
#19
Mario Puviani, Federica Tovecci, Massimo Milani
INTRODUCTION: Gynoid lipodystrophy, also known as cellulite, is a very common skin alteration representing mainly a cosmetic problem rather than a real disease. An effective treatment of cellulite has not been well established. The initial phase of cellulite is characterized by subdermal tissue edema with interstitial fluids retention. A new hypertonic topical product with draining action (HTC) containing NaCl 13%, escine, caffeine, and beta-sitosterol has been recently developed. A 28-day double-blind placebo-controlled study has shown that this cream is able to reduce thigh circumference and the thickness of adipose tissue...
December 4, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29204072/comparative-nutritional-value-and-antimicrobial-activities-between-three-euphorbia-species-growing-in-saudi-arabia
#20
Amani S Awaad, Monerah R Alothman, Yara M Zain, Ghada M Zain, Saleh I Alqasoumi, Dina A Hassan
Plants are excellent sources of nutrition and highly bioactive substances that might use in the development of new drugs and pharmaceutical agents. Three species of the Genus Euphorbia (Family Euphorpiaceae), namely; Euphorbia granulata Forssk, Euphorbia helioscobia L., and Euphorbia hirta Linn growing in Ryiadh, KSA were air-dried, powdered, and their active materials were extracted with alcohol. The nutritional value phytochemical constituents and antimicrobial activity of the plants were determined. The chemical contents were similar in the three species; however, lipid profile of the plants showed that the stearic acid and lignoceric acid were detected only in E...
December 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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