• Title/Summary/Keyword: Glycosides

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Primary Pharmacological and Other Important Findings on the Medicinal Plant "Aconitum Heterophyllum" (Aruna)

  • Paramanick, Debashish;Panday, Ravindra;Shukla, Shiv Shankar;Sharma, Vikash
    • Journal of Pharmacopuncture
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    • v.20 no.2
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    • pp.89-92
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    • 2017
  • Aconitum Heterophyllum (A. Heterophyllum) is an indigenous medicinal plant of India and belongs to the family Ranunculaceae. A. Heterophyllum is known to possess a number of therapeutic effects. For very ancient times, this plant has been used in some formulations in the traditional healing system of India, i.e., Ayurveda. It is reported to have use in treating patients with urinary infections, diarrhea, and inflammation. It also has been used as an expectorant and for the promotion of hepatoprotective activity. The chemical studies of the plant have revealed that various parts of the plant contain alkaloids, carbohydrates, proteins and amino acids, saponins, glycosides, quinones, flavonoids, terpenoids, etc. In the present study, a comprehensive phytochemistry and pharmacognosy, as well as the medicinal properties, of A. Heterophyllum are discussed. Scientific information on the plant was collected from various sources, such as electronic sources (Google scholar, Pubmed) and some old classical text books of Ayurveda and Ethnopharmacology. The study also presents a review of the literature on A. Heterophyllum, as well as the primary pharmacological and other important findings on this medicine. This review article should provide useful information to and be a valuable tool for new researchers who are initiating studies on the plant A. Heterophyllum.

Determination of Cyanogenic Compounds in Edible Plants by Ion Chromatography

  • Cho, Hye-Jeon;Do, Byung-Kyung;Shim, Soon-Mi;Kwon, Hoonjeong;Lee, Dong-Ha;Nah, Ahn-Hee;Choi, Youn-Ju;Lee, Sook-Yeon
    • Toxicological Research
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    • v.29 no.2
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    • pp.143-147
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    • 2013
  • Cyanogenic glycosides are HCN-producing phytotoxins; HCN is a powerful and a rapidly acting poison. It is not difficult to find plants containing these compounds in the food supply and/or in medicinal herb collections. The objective of this study was to investigate the distribution of total cyanide in nine genera (Dolichos, Ginkgo, Hordeum, Linum, Phaseolus, Prunus, Phyllostachys, Phytolacca, and Portulaca) of edible plants and the effect of the processing on cyanide concentration. Total cyanide content was measured by ion chromatography following acid hydrolysis and distillation. Kernels of Prunus genus are used medicinally, but they possess the highest level of total cyanide of up to 2259.81 $CN^-$/g dry weight. Trace amounts of cyanogenic compounds were detected in foodstuffs such as mungbeans and bamboo shoots. Currently, except for the WHO guideline for cassava, there is no global standard for the allowed amount of cyanogenic compounds in foodstuffs. However, our data emphasize the need for the guidelines if plants containing cyanogenic glycosidesare to be developed as dietary supplements.

Effect of Stilbene Derivatives from Rheum undulatum on Carrageenan-Induced Acute Edema in Rats (Carrageenan 유발 족부종에 미치는 종대황 스틸벤 유도체의 효과)

  • Ko, Sung-Kwon;Shin, Cha-Gyun;Lee, Hak-Sung;Han, Sung-Tai;Yang, Byung-Wook;Im, Byung-Ok;Chung, Sung-Hyun
    • Korean Journal of Pharmacognosy
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    • v.35 no.2 s.137
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    • pp.171-174
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    • 2004
  • In order to examine the anti-ohyul (anti-inflammatory) activity of rhubarb, we investigated the effects of stilbene derivatives obtained from rhizomes of Rheum undulatum on the carrageenan-induced hind paw edema in rats. Administration of stilbene aglycon (rhapontigenin) at doses of 50 and 100 mg/kg exhibited the anti- edema effect in dose dependent manner and stilbene glycosides $(rhaponticin,\;piceatannol-3'-O-{\beta}-D-glucopyranoside)$ at a dose of 100 mg/kg also showed inhibitory effect on the carrageenan-induced edema. These inhibitory effects may ascribed, at least in part, to the anti-ohyul activity of rhubarb.

Sesquiterpene Glycosides from the whole Plant Extract of Youngia japonica (뽀리뱅이 전초로부터 분리한 Sesquiterpene 배당체)

  • Kim, Mi-Ri;Cha, Mi-Ran;Choi, Yeon-Hee;Choi, Chun-Whan;Choi, Sang-Un;Kim, Young-Sup;Kim, Young-Kyoon;Kim, Young-Ho;Ryu, Shi-Yong
    • Korean Journal of Pharmacognosy
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    • v.41 no.2
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    • pp.103-107
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    • 2010
  • Extensive phytochemical investigation of the methanol extract from the whole plant of Youngia japonica (Asteraceae) led us to the isolation of a new guaiane-type sesquiterpene (1), together with three related guaianolides, youngiajaponicoside A (2), crepiside H (3) and crepeside E (4). The chemical structure of 1 was elucidated by the aid of spectroscopic analyses including 2D-NMR experiments (COSY, HMBC, HMQC and ROESY). The isolated components (1-4) were evaluated for the inhibitory effect on the proliferation of four cultured human tumor cell lines such as A549, SK-OV-3, SK-MEL-2 and HCT-15, in vitro.

Influence of Intraventricular Ouabain on the Renal Function of the Rabbit (가토(家兎) 신장기능(腎臟機能)에 미치는 측뇌실내(側腦室內) Ouabain의 영향(影響))

  • Lee, Shin-Woong
    • The Korean Journal of Pharmacology
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    • v.12 no.1
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    • pp.31-44
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    • 1976
  • It has been reported that many of the effects of digitalis glycosides could be mediated partly through the central nervous system. In this study the effects of ouabain given directly into the lateral ventricle of the brain on the renal function of the rabbit were investigated. Intraventricular ouabain elicited antidiuresis in doses ranging from 0.1 to $3\;{\mu}g$, exhibiting a rough dose-response relationship, and decreased the renal plasma flow, glomerular filtration rate and urinary excretion of sodium and potassium, concomitant with the decrease of urine flow. These decreases in urine flow, excretory rate of electrolytes significantly correlated with the decrease in renal plasma flow or glomerular filtration rate, suggesting that the antidiuresis might have been induced by the hemodynamic changes. Intravenous ouabain in a dose of $1\;{\mu}g$ did not affect the renal function. Systemic blood pressure as well as cardiac activity was not affected by the intraventricular ouabain. Effects of the intraventricular ouabain on renal function were abolished by the intravenous phentolamine-pretreatment but not affected by intraventricular phentolamine-pretreatment. Neither vasopressin infusion nor hydration did affect the renal effects of intraventricular ouabain. From these observations, it is suggested that the antidiuresis of intraventricular ouabain is induced by the increased sympathetic influence to the kidney.

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Peroxynitrite-scavenging Activity of the Halophyte Limonium tetragonum (염생식물 갯질경이의 Peroxynitrite 소거 활성)

  • Lee, Jung-Im;Kong, Chang-Suk;Jung, Myoung-Eun;Hong, Joo-Wan;Noh, Il;Seo, Young-Wan
    • Ocean and Polar Research
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    • v.33 no.2
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    • pp.185-191
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    • 2011
  • Crude extracts of Limonium tetragonum and their solvent-partitioned fractions were evaluated for their potential to scavenge authentic $ONOO^-$, and $ONOO^-$ derived from 3-morpholinosydnonimine (SIN-1). Four flavonol glycosides (1-4) were isolated by activity-guided separation. Their chemical structures were elucidated by extensive 2 D NMR experiments and by comparison with published spectral data. These compounds were also estimated for their peroxynitrite scavenging effects. The scavenging ratios of compounds 1-4 on authentic $ONOO^-$ were 56, 37, 56, and 54%, respectively, at a concentration of 1 ${\mu}M$. On the other hand, the inbihition ratios of compounds 1-4 against $ONOO^-$ generation from SIN-1 were 59, 39, 44, and 54% at the same concentration, respectively.

Styraxjaponoside A and B, Antifungal Lignan Glycosides Isolated from Styrax japonica S. et Z.

  • Park, Cana;Cho, Jae-Yong;Hwang, Bo-Mi;Hwang, In-Sok;Kim, Mi-Ran;Woo, Eun-Rhan;Lee, Dong-Gun
    • Biomolecules & Therapeutics
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    • v.18 no.4
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    • pp.420-425
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    • 2010
  • The antifungal effects and action mechanisms of styraxjaponoside A and B were investigated. Devoid of hemolytic effect, the compounds had significant effect against several human pathogenic fungal strains, with energy-independent manners. To understand the action mechanisms of the compounds, the flow cytometric analysis plotting the forward scatter and the side scatter, $DiBAC_4$(3) staining and DPH fluorescence analysis were conducted. The results indicated that the actions of the compounds were dependent upon the membrane-active mechanisms. The present study suggests that styraxjaponoside A and B exert their antimicrobial effects via membrane-disruptive mechanisms.

Morphological and Chemical Characteristics of Mulberry(Morus) Fruit with Varietes (몇 가지 뽕품종에 따른 오디의 형태 및 화학적 성분의 특성)

  • Lee, Hui-Wan;Sin, Dong-Hwa;Lee, Wan-Ju
    • Journal of Sericultural and Entomological Science
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    • v.40 no.1
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    • pp.1-7
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    • 1998
  • The morphological and chemical characteristics of leaves and fruits were observed in the three mulberry varieties, including Daeryugppong(Morus Lhou(Ser.) koidz), Kugsang 20(Morus Lhou(Ser.) koidz) and Cataneo(Morus alba L.). The leaf development in spring was earliest in Cataneo and latest in Kugsang. Content of total nitrogen and Mg in leaf was the highest in Cataneo while that of P2O5, K and Ca in Daeryukppong. Flowers started to bloom from May 8 and in full bloom around May 15. Mature fruits began to set from June 10 to 15 and lasted by July 10 in Cataneo. Average fruit weight was heaviest in Kugsang 20(3.52 g/fruit), while lowest in Daeryukppong(1.61 g/fruit). In fruits, glucose and fructose were the major sugars. Citric acid was the most abundant organic acid in three varieties with its average content from 0.8 to 0.14%. The major pigment in fruit was anthocyanin and its content varied among varieties. The stability of anthocyanin was evaluated under various pH, temperature, and sugar concentrations. Rutin was the major flavonol glycoside present in fruits and its content varied from 0.92 to 3.36 mg/gDW. Other flavonol glycosides such as isoquercitrin and quercitrin were also detected in fruit.

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Effects of Flavonoids of Ginseng Leaves on Erythrocyte Membranes against Singlet Oxygen Caused Damage (일중항 산소($^1$O$_2$)에 의한 적헐구막 손상에 미치는 인삼잎 플라보노이드의 영향)

  • Soo-Nam Park;San
    • Journal of Ginseng Research
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    • v.14 no.2
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    • pp.191-199
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    • 1990
  • It has been well known that extended exposure to reactive oxygens causes severe damage to susceptible biomolecules. In this study, the effects of flavonoids including trifolin and kaempferol from Ginseng leaves on singlet oxygen induced photohemolysis of erythrocytes and free radical scavenging activities were investigated. Each flavonoid aglycone (5-50$\mu$M) such as kaempferol, quercetin or baicalein exhibited a high protective effect against the photohemolysis. They protected the cells by scavenging $^1O_2$ and free radicals Although the free radical scavenging activities of the flavonoid glycosides were not much lower than those of their corresponding aglycones, their insolubility into lipid bilayers of membrane made them less effective in preventing the photohemolysis induced by $^1O_2$. The $^1O_2$ and free radical scavenging activities of flavonoids were estimated by the decomposition of the flavonoid by $^1O_2$ and the bleaching of free radicals by the flavonoid, respectively. The solubilization of the flavonoid into micells or erythrocytes was deduced from spectrophotometric and microscopic observations. The cooperation of L-ascorbic acid and a flavonoid, and a possible involvement of lipoxygenase or cyclooxygenase in the photohemolysis mechanism were discussed.

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Phenolic Compounds of Aerial Parts of Euphorbia pekinensis (대극 지상부의 페놀성 화합물)

  • Ahn, Byung-Tae;Zhang, Ben Kang;Lee, Sang-Cheol;Kim, Jae-Gil;Ro, Jai-Seup;Lee, Kyong-Soon
    • YAKHAK HOEJI
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    • v.40 no.2
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    • pp.170-176
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    • 1996
  • A chemical examination of the aerial parts of Euphorbia pekinensis $R_{UPRECHT}$. (Euphorbiaceae) has led to the isolation of seven hydrolyzable tannins and ten fl avonoid glycosides. The former ones have been identified as gallic acid, methylgallate, 3-O-galloyl shikimic acid, 1,3,4,6-tetra-O-galloyl-${\beta}-_D$-glucose, 1,2,3,4,6-penta-O-galloyl-${\beta}-_D$-glucose, corilagin, geraniin and the latter ones as isoquercitrin, quercitrin, astragalin, afzelin, prunin, rutin, kaempferol-3-O-rutinoside, quercetin-3-O-(2"-O-galloyl)-${\beta}-_D$-glucoside and quercetin-3-O-(2"-O-galloyl)-${\alpha}-_L$-rhamnoside on the basis of chemical and spectroscopic evidence.

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