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Asiatic acid

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https://www.readbyqxmd.com/read/29599924/asiatic-acid-attenuates-lipopolysaccharide-induced-injury-by-suppressing-activation-of-the-notch-signaling-pathway
#1
Xiong Yuyun, Cheng Xi, Yin Qing, Xia Lin, Rui Ke, Sun Bingwei
Sepsis is a severe multisystem disease with high mortality rates and limited treatment options. However, advances during the last decade have opened opportunities to develop novel therapeutic strategies. The Notch signaling pathway plays a critical role in inflammation, and its inhibition offers an avenue to treat inflammatory diseases, such as sepsis. Asiatic acid (AA), a triterpenoid isolated from Centella asiatica, reportedly exerts anti-oxidant, anti-tumor, and anti-inflammatory effects, but its mechanisms remain unclear...
March 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29501767/centella-asiatica-ameliorates-diabetes-induced-stress-in-rat-tissues-via-influences-on-antioxidants-and-inflammatory-cytokines
#2
Bubuya Masola, Oluwafemi O Oguntibeju, Ayodeji B Oyenihi
Centella asiatica (L.) Urban (Family: Apiaceae) is a perennial herb that has been used to elevate mood, improve memory, treat wounds and manage kidney-related ailments in African traditional medicine practice. This study evaluated the potential benefits of C. asiatica (CA) on diabetes-induced stress in kidney and brain of rats. Following the induction of diabetes mellitus (DM), rats were orally treated with vehicle, CA or Metformin daily for 14 days. After treatment, renal and brain levels of inflammatory cytokines, TNF-α, IFN-γ, IL-4, and IL-10 were assessed...
March 1, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29467846/asiatic-acid-attenuates-high-fat-diet-induced-impaired-spermatogenesis
#3
Xi-Li Miao, Gui-Min Gao, Lei Jiang, Rui Xu, Da-Peng Wan
Testicular cell apoptosis is associated with impaired spermatogenesis. It has been reported that Asiatic acid (AA) may suppress apoptosis. However, little is known about the effect of AA on high-fat diet (HFD)-induced impairment of spermatogenesis. The aim of the present study was to determine whether AA protects against HFD-induced impairment of spermatogenesis. Sprague-Dawley rats were randomly divided into three groups: Control group, HFD group and AA (50 mg/kg) + HFD group. Rats fed an HFD were orally administered with AA (50 mg/kg) daily for 12 weeks, and blood samples, testis and epididymis were harvested for further analysis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29451865/flavonoids-and-triterpenes-from-combretum-fragrans-with-anti-inflammatory-antioxidant-and-antidiabetic-potential
#4
Amadou Dawé, Marius Mbiantcha, Fawai Yakai, Almas Jabeen, Muhammad Shaiq Ali, Mehreen Lateef, Bonaventure Tchaleu Ngadjui
Despite the well-documented benefits of Combretum fragrans in Cameroon, only few scientific works have been done on it. In this study we isolated eight compounds from the leaves extract of C. fragrans: velutin (1), belamcanidin (2), cirsilineol (3), cirsimaritin (4), 3β-acetoxy-20,24-epoxy-11,25-hydroxy-dammarane (5), combretin A (6), combretin B (7) and a mixture of arjunolic acid (8a) and asiatic acid (8b). Compounds 6 and 7 presented potent anti-inflammatory, antioxidant and antidiabetic activities. Compounds 1, 3, 5 and the mixture of 8a and 8b were significantly active, and compounds 2 and 4 presented moderate activity for reactive oxygen species inhibitory and free-radical scavenging...
February 16, 2018: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/29369796/asiatic-acid-inhibits-lps-induced-inflammatory-response-in-endometrial-epithelial-cells
#5
Shou-Yan Cao, Wei Wang, Fang-Fang Nan, Yan-Ni Liu, Shuang-Yan Wei, Fang-Fang Li, Li Chen
Accumulating evidence indicates that asiatic acid, a natural triterpene isolated from Centella asiatica, has anti-inflammatory activity. However, the anti-inflammatory effects of asiatic acid on LPS-stimulated endometrial epithelial cells and the involved molecular pathways have not been completely elucidated. In the present study, we evaluated the effects of asiatic acid on LPS-induced inflammatory response in endometrial epithelial cells. Mouse endometrial epithelial cells were treated with asiatic acid and stimulated with LPS...
January 21, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29361877/pharmacological-review-on-asiatic-acid-and-its-derivatives-a-potential-compound
#6
Junwei Lv, Alok Sharma, Ting Zhang, Yuchen Wu, Xianting Ding
Natural triterpenes represent a group of pharmacologically active and structurally diverse organic compounds. The focus on these phytochemicals has been enormous in the past few years, worldwide. Asiatic acid (AA), a naturally occurring pentacyclic triterpenoid, is found mainly in the traditional medicinal herb Centella asiatica. Triterpenoid saponins, which are the primary constituents of C. asiatica, are commonly believed to be responsible for their extensive therapeutic actions. Published research work has described the molecular mechanisms underlying the various biological activities of AA and its derivatives, which vary for each chronic disease...
January 1, 2018: SLAS Technology
https://www.readbyqxmd.com/read/29357733/effects-of-glycyrrhizin-on-the-pharmacokinetics-of-asiatic-acid-in-rats-and-its-potential-mechanism
#7
Ling Guo, Ying Cui, Kaijun Hao
CONTEXT: Asiatic acid has been reported to possess a wide range of pharmacological activities. OBJECTIVE: This study investigates the effects of glycyrrhizin on the pharmacokinetics of asiatic acid in rats and its potential mechanism. MATERIALS AND METHODS: The pharmacokinetics of orally administered asiatic acid (20 mg/kg) with or without glycyrrhizin pretreatment (100 mg/kg/day for seven days) were investigated using a LC-MS method. Additionally, the Caco-2 cell transwell model and rat liver microsome incubation systems were used to investigate the potential mechanism of glycyrrhizin's effects on the pharmacokinetics of asiatic acid...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29354820/asiatic-acid-suppresses-neuroinflammation-in-bv2-microglia-via-modulation-of-the-sirt1-nf-%C3%AE%C2%BAb-signaling-pathway
#8
Yisong Qian, Zhaochen Xin, Yanni Lv, Ziwei Wang, Li Zuo, Xiang Huang, Yunman Li, Hong-Bo Xin
Asiatic acid, a triterpenoid derived from Centella asiatica, has been found to exhibit multiple bioactivities. In this study, we investigated the effects of asiatic acid on lipopolysaccharide (LPS)-induced neuroinflammation and explored the mechanism of its action in BV2 microglia. We found that asiatic acid (0.1 to 100 μM) treatment significantly attenuated nitric oxide (NO) production and inhibited inducible nitric oxide synthase (iNOS) expression in a concentration-dependent manner following LPS exposure...
February 21, 2018: Food & Function
https://www.readbyqxmd.com/read/29304559/synthesis-and-antitumor-activity-evaluation-of-asiatic-acid-derivatives-as-survivin-inhibitor
#9
Yan-Qiu Meng, Hua-Bo Cui, Lei Li, Wei-Chen Zhang, Hong-Shuang Pan, Ting-Ting Yu, Wei Li
A series of asiatic acid derivatives were synthesized and their cytotoxicities in vitro against two cancer cell lines (HepG2 and SGC7901) were evaluated by MTT assay. The results showed that compounds I2 , I6 , and II6 have more potent anticancer activity than that of the positive control drug paclitaxel. The interactions between the compounds I2 , I6 , and II6 and survivin were also studied by docking simulations.
January 5, 2018: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/29228978/asiatic-acid-attenuates-methamphetamine-induced-neuroinflammation-and-neurotoxicity-through-blocking-of-nf-kb-stat3-erk-and-mitochondria-mediated-apoptosis-pathway
#10
Ji-Hyun Park, Young Ho Seo, Jung-Hee Jang, Chul-Ho Jeong, Sooyeun Lee, Byoungduck Park
BACKGROUND: Methamphetamine (METH) is a commonly abused drug that may result in neurotoxic effects. Recent studies have suggested that involvement of neuroinflammatory processes in brain dysfunction is induced by misuse of this drug. However, the mechanism underlying METH-induced inflammation and neurotoxicity in neurons is still unclear. In this study, we investigated whether asiatic acid (AA) effected METH-mediated neuroinflammation and neurotoxicity in dopaminergic neuronal cells. And we further determined whether the effect involved in the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and signal transducer and activator of transcription (STAT)3 and extracellular signal-regulated kinase (ERK) pathway...
December 11, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29210992/characterization-of-the-asiatic-acid-glucosyltransferase-ugt73ah1-involved-in-asiaticoside-biosynthesis-in-centella-asiatica-l-urban
#11
Ok Tae Kim, Mei Lan Jin, Dae Young Lee, Reinhard Jetter
Centella asiatica (L.) Urban contains two ursane-type triterpene saponins, asiaticoside and madecassoside, as major secondary metabolites. In order to select candidate genes encoding UDP-glucosyltransferases (UGTs) involved in asiaticoside biosynthesis, we performed transcriptomic analysis of leaves elicited by methyl jasmonate (MeJA). Among the unigenes, 120 isotigs and 13 singletons of unique sequences were annotated as UGTs, including 37 putative full-length cDNAs, and 15 of the putative UGT genes were named according to the UGT committee nomenclature protocols...
December 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29196105/asiatic-acid-ameliorates-hepatic-ischemia-reperfusion-injury-in-rats-via-mitochondria-targeted-protective-mechanism
#12
Yapeng Lu, Huiwen Kan, Ying Wang, Dan Wang, Xueting Wang, Jing Gao, Li Zhu
It has been proved that asiatic acid (AA) directly targets mitochondria and acts as a mild mitochondrial uncoupler. In this study, we aim to investigate the protective effects of AA against ischemia/reperfusion (I/R)-induced liver injury in rats and some underlying mechanisms involved were elucidated. The results showed that 50mg/kg AA pre-treatment significantly reduced I/R-induced liver damage, characterized by the decreased release of aspartate aminotransferase (AST) and TNF-α. Furthermore, AA pre-treatment dramatically inhibited the production of MDA and increased the hepatic SOD, catalase activities and GSH levels in liver tissue of I/R rats which indicated that AA ameliorated I/R-induced liver damage by reducing oxidative stress...
January 1, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29156799/asiatic-acid-protects-against-hepatic-ischemia-reperfusion-injury-by-inactivation-of-kupffer-cells-via-ppar%C3%AE-nlrp3-inflammasome-signaling-pathway
#13
Ying Xu, Jun Yao, Chen Zou, Heng Zhang, Shouliang Zhang, Jun Liu, Gui Ma, Pengcheng Jiang, Wenbo Zhang
Hepatic ischemia/reperfusion (I/R) contributes to major complications in clinical practice affecting perioperative morbidity and mortality. Recent evidence suggests the key role of nucleotide-binding oligomerization domain-like receptor (NLR) family pyrin domain-containing 3 (NLRP3) inflammaosme activation on the pathogenesis of I/R injury. Asiatic acid (AA) is a pentacyclic triterpene derivative presented with versatile activities, including antioxidant, anti-inflammation and hepatoprotective effects. This study was designed to determine whether AA had potential hepatoprotective benefits against hepatic I/R injury, as well as to unveil the underlying mechanisms involved in the putative effects...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156327/asiatic-acid-and-maslinic-acid-attenuated-kainic-acid-induced-seizure-through-decreasing-hippocampal-inflammatory-and-oxidative-stress
#14
Zhi-Hong Wang, Mei-Chin Mong, Ya-Chen Yang, Mei-Chin Yin
Seizure is a neurological disorder including hippocampal oxidative and inflammatory stress, and glutamate toxicity. Thus, any agent(s) that mitigate(s) these events in hippocampus might attenuate seizure severity. The effects of asiatic acid (AA) or maslinic acid (MA) pre-administration at 20 or 40mg/kg body weight/day upon inflammatory, oxidative and apoptotic injury in hippocampus of kainic acid (KA)-treated mice were examined. KA induced seizure-like behavioral patterns, which was attenuated by AA or MA pre-administration...
November 17, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29108773/asiatic-acid-abridges-pre-neoplastic-lesions-inflammation-cell-proliferation-and-induces-apoptosis-in-a-rat-model-of-colon-carcinogenesis
#15
Aktarul Islam Siddique, Vijay Mani, Senbagarani Renganathan, Rajagopal Ayyanar, Ananthi Nagappan, Nalini Namasivayam
The utmost aim of this present study was to investigate the anti-inflammatory, antiproliferative and proapoptotic potential of Asiatic acid (AA) on 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis in experimental rats. Rats were divided into six groups and received modified pellet diet for 32 weeks. Group 1 served as control rats. Group 2 received AA (4 mg/kg b.w. p.o.). Group 3-6 rats received 15 DMH (20 mg/kg b.w., s.c.) injections once a week starting from the 4th week. Besides DMH, rats received AA (4 mg/kg b...
December 25, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29098838/-oral-absorption-of-asiatic-acid-nanoparticles-modified-with-peg
#16
Ya-Wen Zhang, Li-Na Yin, Xia-Ying Huang, Ze-Hua Liang, Xiao-Xiao Chen, Sheng-Hao Wang
A solvent diffusion method was used to prepare pegylated asiatic acid (AA) loaded nanostructured lipid carriers (p-AA-NLC), and the ligated intestinal circulation model was established to observe the absorption and distribution in small intestine. The concentration of AA in bile after oral administration of p-AA-NLC was detected by HPLC in healthy SD rats to indirectly evaluate the oral absorption promoting effect of PEG-modified namoparticles. The results showed that the penetration of p-AA-NLC was enhanced significantly and the transport capacity was increased greatly in small intestinal after PEG modification...
July 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29098829/-difference-of-chemical-constituents-in-eucommiae-cortex-from-different-habitats-by-lc-qtof-ms-ms
#17
Ying Yan, Hui Zhao, Li-Si Zou, Xun-Hong Liu, Chuan Chai, Sheng-Nan Wang, Yu-Jiao Hua
In order to study the influence of ecological environment regarding the synthesis and accumulation of metabolites in Eucommiae Cortex, LC-QTOF MS/MS method combined with multivariate statistical analysis was used to analyze the differences of chemical constituents in Eucommiae Cortex from different habitats. Through the analysis of the multistage tandem mass spectrometry, the characteristic peaks were extracted with mass spectrometry data peak matching, peak alignment, and noise filtering. Principal component analysis (PCA) and partial least-squares discriminant analysis (PLS-DA) were used for data processing...
July 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28993954/obesity-alleviating-potential-of-asiatic-acid-and-its-effects-on-acc1-ucp2-and-cpt1-mrna-expression-in-high-fat-diet-induced-obese-sprague-dawley-rats
#18
P Rameshreddy, V V Sathibabu Uddandrao, Parim Brahmanaidu, S Vadivukkarasi, Ramavat Ravindarnaik, Pothani Suresh, K Swapna, A Kalaivani, Parimi Parvathi, P Tamilmani, Ganapathy Saravanan
The present study evaluated the effects of asiatic acid (AA), a pentacyclic triterpenoid from Centella asiatica on lipid metabolism parameters in a rat model of obesity induced using a high fat diet (HFD) for 42 days. AA (20 mg/kg body weight [BW]) was administered orally once daily for 42 days, and an orlistat-treated group of rats (10 mg/kg BW) was included for comparison. Changes in BW, blood glucose levels, insulin resistance and leptin, adiponectin, amylase, and lipase levels in the blood; lipid profiles of plasma; liver antioxidants levels; and acetyl CoA carboxylase(ACC), uncoupling protein-2 (UCP2), and carnitine palmitoyltransferase-1 (CPT1) mRNA expression were observed in the experimental rats...
October 9, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28930619/asiatic-acid-nullified-aluminium-toxicity-in-in-vitro-model-of-alzheimer-s-disease
#19
Mashoque Ahmad Rather, Arokiasamy Justin Thenmozhi, Thamilarasan Manivasagam, Jegadeesan Nataraj, Musthafa Mohamed Essa, Saravana Babu Chidambaram
Aluminium (Al) is a ubiquitously distributed environmental toxicant that lacks biological functions; however, its accumulation in the brain has been demonstrated to be linked to several neuropathological conditions particularly Alzheimer's disease (AD). Asiatic acid (AA), a triterpene extracted from Centella asiatica , has been reported to cross the blood brain barrier and also displayed antioxidant and neuroprotective activities. The present study was aimed to explore the neuroprotective effect of AA against aluminium maltolate ( Al(mal)3 ) induced neurotoxicity by assessing cell viability, mitochondrial membrane potential, levels of reactive oxygen species (ROS), DNA damage and apoptosis (Hoechst and dual staining, comet assay; expressions of pro-apoptotic, anti-apoptotic and signaling indices) via AKT/GSK-3β signaling pathway in SH-SY 5Y  neuroblastoma cells...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28930532/neuroprotective-role-of-asiatic-acid-in-aluminium-chloride-induced-rat-model-of-alzheimer-s-disease
#20
Mashoque Ahmad Rather, Arokiasamy Justin Thenmozhi, Thamilarasan Manivasagam, Mathiyazahan Dhivya Bharathi, Musthafa Essa, Gilles J Guillemin
Alzheimer's disease (AD) is the most common form of dementia, characterized by memory loss, cognitive impairment and personality disorders accompanied by diffuse structural abnormalities in the brain of elderly people. The current investigation explored the neuroprotective potential of asiatic acid (AA), a natural triterpene of Centella asiatica on aluminium chloride (AlCl3 ) induced rat model of AD. Oral administration of AlCl3 (100 mg/kg b.w.) for 42 days significantly elevated the levels of Al, activity of acetyl cholinesterase and expressions of amyloid precursor protein, amyloid beta1-42 , beta and gamma secretases, glial fibrillary acidic protein, ionized calcium binding adaptor molecule 1, interleukins -1β, 6, 4, 2, tumor necrosis factor alpha, inducible nitric oxide synthase, nuclear factor- k beta and cyclooxygenase-2 in the hippocampus and cortex  compared to the control group...
January 1, 2018: Frontiers in Bioscience (Scholar Edition)
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