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Showing 1-30 of 148 results for "U6753" within Papers
Long Cui et al.
Journal of natural products, 70(6), 1039-1042 (2007-05-11)
Three new prenylated flavanones, abyssinoflavanones V, VI, and VII (1-3), together with eight known flavanones (4-11) and two chalcones (12-13), were isolated from the stem bark of Erythrina abyssinica. Their structures were elucidated on the basis of spectroscopic and physicochemical
András Lőrincz et al.
Biochimica et biophysica acta, 1848(5), 1092-1098 (2015-01-27)
Effects of ursolic acid on the structural and morphological characteristics of dipalmitoyl lecithin(DPPC)-water system was studied by using differential scanning calorimetry (DSC), small- and wide-angle X-ray scattering (SWAXS), freeze-fracture method combined with transmission electron-microscopy (FF-TEM) and infrared spectroscopy (FT-IR). The
Zhongling Zhu et al.
International journal of nanomedicine, 8, 129-136 (2013-01-16)
Ursolic acid is a promising anticancer agent. The current study aims to evaluate the single- and multiple-dose pharmacokinetics (PK) as well as the safety of ursolic acid nanoliposomes (UANL) in healthy volunteers and in patients with advanced solid tumors. Twenty-four
J Liu
Journal of ethnopharmacology, 49(2), 57-68 (1995-12-01)
Oleanolic acid and ursolic acid are triterpenoid compounds that exist widely in food, medicinal herbs and other plants. This review summarizes the pharmacological studies on these two triterpenoids. Both oleanolic acid and ursolic acid are effective in protecting against chemically
Shuying Shen et al.
Chemico-biological interactions, 218, 28-41 (2014-05-08)
Malignant gliomas are the most common primary brain tumors, and novel ways of treating gliomas are urgently needed. Ursolic acid (UA), a pentacyclic triterpenoid, has been reported to exhibit promising antitumor activity. Here, we evaluated the effects of UA on
Ursolic acid induces neural regeneration after sciatic nerve injury.
Liu B, et al.
Neural Regeneration Research, 8(27), 2510-2510 (2013)
Simone C B Gnoatto et al.
European journal of medicinal chemistry, 43(9), 1865-1877 (2008-01-15)
The inhibitory potency of ursolic acid extracted from Ilex paraguariensis, a plant used in South American population for a tea preparation known as maté, and its derivatives to inhibit aromatase activity was assessed and compared to a phytoestrogen apigenin and
Renata Nowak et al.
Acta poloniae pharmaceutica, 70(3), 413-418 (2013-06-14)
Spices play an important role in the chemoprevention and they can be a rich source of biologically active compounds such as triterpenes in the human diet. A method based on high performance thin-layer chromatography combined with densitometry for determination of
Dong-mei Wu et al.
Toxicology and applied pharmacology, 271(2), 127-136 (2013-05-28)
Our previous findings suggest that mitochondrial dysfunction is the mechanism underlying cognitive deficits induced by domoic acid (DA). Ursolic acid (UA), a natural triterpenoid compound, possesses many important biological functions. Evidence shows that UA can activate PI3K/Akt signaling and suppress
Sarita Saraswati et al.
Chemico-biological interactions, 206(2), 153-165 (2013-09-21)
Ursolic acid (UA) is a pentacyclic triterpene naturally occurring in many plant foods. In the present study, we investigated anti-cancer activity of UA in vivo in Ehrlich ascites carcinoma (EAC) tumor. 15 × 10(6) EAC cells were implanted intraperitoneally (i.p.
Y Estornes et al.
Cell death & disease, 5, e1555-e1555 (2014-12-06)
Accumulation of unfolded proteins in the endoplasmic reticulum (ER) causes ER stress and results in the activation of the unfolded protein response (UPR), which aims at restoring ER homeostasis. However, when the stress is too severe the UPR switches from
Gloria N S da Silva et al.
Malaria journal, 12, 89-89 (2013-03-19)
The discovery and development of anti-malarial compounds of plant origin and semisynthetic derivatives thereof, such as quinine (QN) and chloroquine (CQ), has highlighted the importance of these compounds in the treatment of malaria. Ursolic acid analogues bearing an acetyl group
Yonghan He et al.
PloS one, 9(10), e110711-e110711 (2014-10-21)
Ursolic acid (UA), a triterpenoid compound, is reported to have a glucose-lowering effect. However, the mechanisms are not fully understood. Adipose tissue is one of peripheral tissues that collectively control the circulating glucose levels. The objective of the present study
Litao Li et al.
Brain research, 1497, 32-39 (2013-01-02)
Oxidative and inflammatory damages have been suggested to play an important role in cerebral ischemic pathogenesis, and provide promising therapeutic strategies for stroke. Nuclear factor-erythroid 2-related factor 2 (Nrf2), a pleiotropic transcription factor, has been shown to play a key
Reiko Tanaka et al.
Bioorganic & medicinal chemistry, 17(14), 5238-5246 (2009-06-12)
Sixteen novel compounds; 3alpha-methoxyserrat-14-en-21beta-ol (1) and 3beta-methoxyserrat-14-en-21beta-ol (2) and their curcumin, kojic acid, quercetin, and baicalein conjugates (3)-(18) were designed, synthesized, and evaluated for in vitro anti-HIV-1 reverse transcriptase (RT) activity in infected C8166-CCR5 cells, a human CD4(+) T-lymphocyte cell
Wen Jin Hua et al.
European journal of drug metabolism and pharmacokinetics, 39(3), 221-230 (2014-04-17)
Chinese herbal medicines such as hawthorn, salvia, etc., are frequently combined with statins so as to treat cardiovascular diseases more effectively. Chinese herbal medicines contain many kinds of active components, which may have drug-drug interactions with statins. This study aims
Aljawharah AlQathama et al.
Biomolecules, 10(6) (2020-06-18)
We evaluate how 3-acetylation modulates the in vitro activity of ursolic acid in melanoma cells alone or in combination treatments with quercetin. Anti-proliferative studies on A375 cells and adult human dermal fibroblasts included analyses on cell cycle distribution, caspase activity
Birgit U Jaki et al.
Journal of natural products, 71(10), 1742-1748 (2008-09-19)
The present study explores the variability of biological responses from the perspective of sample purity and introduces the concept of purity-activity relationships (PARs) in natural product research. The abundant plant triterpene ursolic acid (1) was selected as an exemplary natural
Narendra Kumar Singh et al.
Pakistan journal of pharmaceutical sciences, 27(1), 187-191 (2014-01-01)
The roots of Ichnocarpus frutescens along with roots of Cissampelos pareira, Bauhinia vahlii and Ardisia solanacea are processed together and given orally to cure stomach cancer by the tribes of Chotanagpur and Santhal parganas of Bihar, India. In vitro anticancer
Jin-Feng Hu et al.
Journal of natural products, 69(1), 118-120 (2006-01-31)
One new (1) and four known (2-5) ursene triterpenes with potent inhibition of the formation of the bacterial biofilm Pseudomonas aeruginosa PA01 were obtained from Diospyros dendo using a high-throughput natural products chemistry procedure. These compounds were isolated as mass-limited
Longhai Dai et al.
Plant & cell physiology, 56(6), 1172-1182 (2015-03-12)
Mogrosides, the major bioactive components isolated from the fruits of Siraitia grosvenorii, are a family of cucurbitane-type tetracyclic triterpenoid saponins that are used worldwide as high-potency sweeteners and possess a variety of notable pharmacological activities. Mogrosides are synthesized from 2,3-oxidosqualene
Yun Chen et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 38(3), 362-365 (2013-05-15)
To determine the chemical constituents of Gentiana rhodantha. To isolate the constituents, column chromatography over silica gel, MCI, Sephadex LH-20 and C18 reverse-phased silica gel were used. Spectroscopic methods were used to elucidate the structures of the isolated compounds. Sixteen
L Novotný et al.
Neoplasma, 48(4), 241-246 (2001-11-20)
Ursolic acid, UA, as a pentacyclic triterpene is of interest to scientists in the area of oncology because of its cytotoxicity, induction of differentiation, anti-mutagenic, antiviral and anti-invasive activities. UA is capable of inducing apoptosis in tumor cells on one
Muthu K Shanmugam et al.
Biochemical pharmacology, 85(11), 1579-1587 (2013-03-19)
Discovery of bioactive molecules and elucidation of their molecular mechanisms open up an enormous opportunity for the development of improved therapy for different inflammatory diseases, including cancer. Triterpenoids isolated several decades ago from various medicinal plants now seem to have
Chan Woo Lee et al.
Bioorganicheskaia khimiia, 38(3), 374-381 (2012-09-25)
Accessible triterpenoids of ursane and lupane series, the flavonoid dihydroquercetin and their synthetic derivatives with polar substituentss were tested in vitro for inhibition of collagenase 1 (MMP-1) in UVB irradiation assay. Ursolic acid and uvaol disuccinate were the most active
Ji Sang Hwang et al.
Bioorganic & medicinal chemistry letters, 22(1), 706-708 (2011-11-15)
The activity-guided fractionation of the MeOH extract of the rhizomes and roots of Nardostachys chinensis led to the isolation of two new sesquiterpenoids, narchinol B (8) and narchinol C (9), along with 10 known compounds, ursolic acid (1), nardosinone (2)
Amélia M Silva et al.
Pharmaceutics, 11(8) (2019-07-28)
Oleanolic (OA) and ursolic (UA) acids are recognized triterpenoids with anti-cancer properties, showing cell-specific activity that can be enhanced when loaded into polymeric nanoparticles. The cytotoxic activity of OA and UA was assessed by Alamar Blue assay in three different
Chong Zhao et al.
Autophagy, 9(2), 196-207 (2012-11-28)
Ursolic acid (UA) is a pentacyclic triterpenoid with promising cancer chemopreventive properties. A better understanding of the mechanisms underlying anticancer activity of UA is needed for further development as a clinically useful chemopreventive agent. Here, we found that both endoplasmic
Phuong Thien Thuong et al.
Journal of natural products, 71(10), 1775-1778 (2008-09-19)
Phytochemical study on a methanol-soluble extract of the leaves of persimmon (Diospyros kaki) resulted in the isolation of two new ursane-type triterpenoids, 3alpha,19alpha-dihydroxyurs-12,20(30)-dien-24,28-dioic acid (1) and 3alpha,19alpha-dihydroxyurs-12-en-24,28-dioic acid (2), together with 12 known ursane- and oleanane-type triterpenoids (3-14). Triterpenoids with
Alexia Agiomyrgianaki et al.
Magnetic resonance in chemistry : MRC, 50(11), 739-748 (2012-09-25)
(31)P nuclear magnetic resonance (NMR) spectroscopy was used to detect and quantify simultaneously a large number of phenolic compounds and the two triterpenic acids, ursolic acid and oleanolic acid, extracted from two oregano species Origanum onites and Origanum vulgare ssp.
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