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Jingjing Kang et al.
International immunopharmacology, 12(1), 249-256 (2011-12-14)
As a natural alkaloid extracted from Amaryllidaceae, lycorine shows various biological effects on tumor cells. Here we show that lycorine dose-dependently inhibited the LPS-induced up-regulation of nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein level in RAW264.7 cells. Besides, it
Ivan Ivanov et al.
Journal of plant physiology, 169(2), 206-211 (2011-11-29)
The alkaloid patterns in Leucojum aestivum L. shoot culture cultivated at temporary immersion conditions were investigated using gas chromatography-mass spectrometry. 18 alkaloids were identified, and galanthamine, hamayne and lycorine were dominant. The L. aestivum 80 shoot culture, cultivated at temporary
Sandra Jahn et al.
Analytica chimica acta, 756, 60-72 (2012-11-28)
Alkaloids from the plant family of Amaryllidaceae, such as galantamine (GAL) and lycorine (LYC), are known to exhibit numerous promising biological and pharmacological activities like antibacterial, antiviral or anti-inflammatory effects. Nonetheless, studies on the biotransformation pathway are rare for this
Xiezhao Li et al.
Oncotarget, 8(13), 21177-21186 (2017-04-19)
Renal cell carcinoma (RCC) management has undergone a major transformation over the past decade; immune checkpoint inhibitors are currently undergoing clinical trials and show promising results. However, the effectiveness of immune checkpoint inhibitors in patients with metastatic RCC (mRCC) is
Yoshiaki Onishi et al.
Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology, 29(3-4), 407-416 (2012-04-18)
Plants of the Amaryllidaceae family have been used as therapeutic agents against CNS related maladies such as Alzheimer's disease. The known primary alkaloid constituents have significant biological activity. We identified the Lycoris alkaloids lycorine and lycoricidinol from Amaryllidaceae using a
Carolyn Botting et al.
Expert opinion on drug discovery, 7(5), 417-428 (2012-03-24)
The members of the family Flaviviridae, including West Nile virus, yellow fever virus and dengue virus, are important human pathogens that are expanding their impact around the globe. The four serotypes of dengue infect 50-100 million people each year, yet
Zhifei Cao et al.
Toxicology letters, 218(2), 174-185 (2013-02-05)
Uncontrolled tumor cell proliferation and robust neovascularization are prominent features of aggressive ovarian cancers. Although great efforts in anti-ovarian cancer therapy have been made in the past 4 decades, the 5-year survival rates for ovarian cancer patients are still poor
Macarena Mellado et al.
Plant physiology and biochemistry : PPB, 51, 102-108 (2011-12-14)
In order to analyze the synthesis of antioxidant and heavy metal-chelating compounds in response to copper stress, the marine alga Ulva compressa (Chlorophyta) was exposed to 10 μM copper for 7 days and treated with inhibitors of ASC synthesis, lycorine
You-Yi Zhao et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(9), 1366-1368 (2012-01-21)
To study the chemical constituents of the Bulbs of Lycoris longituba. The chemical constituents were isolated and purified by means of chromatographic techniques and their structures were elucidated by spectroscopic methods. Six compounds were isolated and identified as Crinine (1)
Nenghui Ye et al.
Plant signaling & behavior, 7(5), 563-565 (2012-04-21)
The antagonism between abscisic acid (ABA) and gibberellin (GA) plays a key role in controlling seed germination, but the mechanism of antagonism during this process is not known. In the associated study, we investigated the relationship among ABA, reactive oxygen
M Z Haznedaroglu et al.
Acta biologica Hungarica, 65(4), 396-404 (2014-12-06)
Studies on Alzheimer's disease have been highlighted due to increasing prevalence of this disease. Oldest hypothesis about the pathophysiology strengthens the research of cholinesterase inhibitors for treatment. Amaryllidaceae plants are well known for alkaloids showing cholinesterase inhibiting activity. Among them
Nikolai M Evdokimov et al.
Bioorganic & medicinal chemistry, 19(23), 7252-7261 (2011-10-25)
As a continuation of our studies aimed at the development of a new cytostatic agent derived from an Amaryllidaceae alkaloid lycorine, we synthesized 32 analogues of this natural product. This set of synthetic analogues included compounds incorporating selective derivatization of
Devashree N Patil et al.
PloS one, 14(5), e0215291-e0215291 (2019-06-01)
Among neurodegenerative diseases, Alzheimer's disease (AD) is one of the most grievous disease. The oldest cholinergic hypothesis is used to elevate the level of cognitive impairment and acetylcholinesterase (AChE) comprises the major targeted enzyme in AD. Thus, acetylcholinesterase inhibitors (AChEI)
Akifumi Oishi et al.
Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 60(4), 108-112 (2019-09-03)
Assuming the intentional adulteration of beverages with plant toxins, an LC-MS/MS method for the simultaneous determination of 18 plant toxins (lycorine, galantamine, ricinine, scopolamine, gelsemine, atropine, colchicine, α-solanine, jervine, α-chaconine, veratramine, mesaconitine, digoxin, protoveratrine A, aconitine, hypaconitine, oleandrin, and digitoxin)
Deepali Katoch et al.
Journal of pharmaceutical and biomedical analysis, 71, 187-192 (2012-09-04)
A rapid, simple and sensitive ultra performance liquid chromatography-diode array detection method (UPLC-DAD) was developed and validated for quantification of four biologically important Amaryllidaceae alkaloids viz. lycoramine, hamayne, haemanthamine and tortuosine in Zephyranthes grandiflora. The method employed BEH C(18) column
S Ilavenil et al.
Fundamental & clinical pharmacology, 26(3), 393-401 (2011-04-13)
Carbon tetrachloride (CCl(4)) is a well-known model for inducing chemical hepatic injury in Swiss albino mice. The present study was designed to examine the ability of lycorine a natural alkaloid compound to prevent CCl(4)-induced hepatotoxicity in the Swiss albino mice.
Sascha Kretzing et al.
Archives of toxicology, 85(12), 1565-1573 (2011-06-01)
Lycorine is the main alkaloid of many Amaryllidaceae and known to cause poisoning with still unknown mechanisms. Longer lasting toxicological core symptoms of nausea and emesis may become a burden for human and animal patients and may result in substantial
Jiangning Liu et al.
Virology journal, 8, 483-483 (2011-10-28)
Human enterovirus 71 (EV71) infection causes hand, foot and mouth disease in children under 6 years old and this infection occasionally induces severe neurological complications. No vaccines or drugs are clinical available to control EV71 epidemics. In present study, we
Raquel Brandt Giordani et al.
Phytochemistry, 72(7), 645-650 (2011-02-18)
In this study, the mechanism of action of the pro-apoptotic alkaloid lycorine on an amitochondriate cell, the parasite Trichomonas vaginalis, was investigated. The cytotoxicity of lycorine against T. vaginalis was studied from 2.5 to 1000μM and several important ultrastructural alterations
Raquel B Giordani et al.
Chemical biology & drug design, 80(1), 129-133 (2012-01-21)
Six lycorine derivatives were prepared, characterized, and evaluated for their in vitro anti-Trichomonas vaginalis activity. Compounds bearing an acetyl (2), lauroyl (3), benzoyl (4 and 5), and p-nitrobenzoyl (6 and 7) groups were synthesized. The best activity was achieved with
Cheng-Xia Tan et al.
Journal of agricultural and food chemistry, 59(11), 5977-5985 (2011-04-27)
In a continuing effort to discover natural products and natural product-based compounds for the control of columnaris disease in channel catfish (Ictalurus punctatus), 17 lycorine analogues were synthesized, including new benzoyl analogues 6-16, and evaluated for antibacterial activity against two
Anna El Tahchy et al.
Journal of natural products, 74(11), 2356-2361 (2011-10-22)
Alkaloids from plants of the family Amaryllidaceae have important pharmacological properties and can be regarded as derivatives of the common precursor 4'-O-methylnorbelladine (6) via intramolecular oxidative phenol coupling. Their biosynthetic pathway, particularly in Leucojum aestivum, has not yet been totally
Yao Wang et al.
Organic & biomolecular chemistry, 10(41), 8211-8215 (2012-09-15)
A concise and stereoselective construction of the tetracyclic core of lycorine-type alkaloids and the formal synthesis of α-lycorane has been achieved. The feature of the current method is the employment of a bifunctional thiourea-catalyzed cascade reaction as a powerful tool
Zengwei Luo et al.
Journal of natural products, 75(12), 2113-2120 (2012-11-30)
Seven new alkaloids, N-methylhemeanthidine chloride (1), N-methyl-5,6-dihydroplicane (5), O-methylnerinine (6), N-ethoxycarbonylethylcrinasiadine (7), N-ethoxycarbonylpropylcrinasiadine (8), N-phenethylcrinasiadine (9), and N-isopentylcrinasiadine (10), together with eight known alkaloids, hemeanthamin (2), 3-epimacronine (3), (+)-tazettine (4), N-methylcrinasiadine (11), trisphaeridine (12), 5,6-dihydrobicolorine (13), lycorine (14), and nigragillin
Jian-Sai Yang et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 33(11), 1730-1732 (2011-03-26)
To study the chemical constituents from the bulbs of Zephyranthes candida. The chemical constituents were separated and purified by means of several chromatographies and their structures were elucidated by spectroscopic methods. Six compounds were isolated and identified as trisphaeridine (I)
Ruifang Liu et al.
Pigment cell & melanoma research, 25(5), 630-638 (2012-07-12)
Melanoma cells actively participate in tumor angiogenesis and vasculogenic mimicry. However, anti-angiogenic therapy in patients with melanoma has not shown a significant survival gain. Thus, new anti-melanoma angiogenic and vasculogenic drugs are highly desired. Using the metastatic melanoma cell line
G Saltan Çitoğlu et al.
Fitoterapia, 83(1), 81-87 (2011-10-05)
The present study reports the potential antinociceptive, anti-inflammatory and hepatoprotective activities of lycorine from Sternbergia fischeriana (Herbert) Rupr. (Amaryllidaceae). Lycorine was evaluated on mice by using acetic-acid induced writhing and tail-flick tests. Lycorine exhibited stronger inhibition than aspirin in acetic-acid
Jerald J Nair et al.
Natural product communications, 7(7), 959-962 (2012-08-23)
The plant family Amaryllidaceae occupies a privileged status within the botanical hierarchy due to its horticultural and ornamental appeal, as well as its widespread usage in the traditional medicinal practices of indigenous peoples across the globe. Of greater significance are
Patrícia de Brum Vieira et al.
Planta medica, 77(10), 1054-1059 (2011-02-11)
The Amaryllidaceae family is known by its ornamental and medicinal value and has attracted considerable attention due to the content of alkaloids of its species, which showed interesting biological properties. The present study evaluated the anti-Trichomonas vaginalis activity of eighteen
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