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Ecdysterone

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https://www.readbyqxmd.com/read/29430349/%C3%AE-ecdysterone-accumulation-and-regulation-in-ajuga-multiflora-bunge-suspension-culture
#1
Yan-Chen Wang, Jia-Jia Zhao, De-Fu Chi
Ajuga multiflora Bunge cells contain β-ecdysterone (β-EC) that regulates the molting process of insect larvae. In this study, different conditions of culture have been studied to optimize the production of β-EC. A. multiflora Bunge growth fitted the curve of logistic equation with one growth cycle of 17 days. The electric conductivity of medium had a negative correlation with not only the weight of dry cell but also the β-EC accumulation, and thus, could be used for monitoring the peak of both cell growth and β-EC accumulation...
February 2018: 3 Biotech
https://www.readbyqxmd.com/read/29331795/development-and-validation-of-an-uhplc-ms-ms-approach-for-simultaneous-quantification-of-five-bioactive-saponins-in-rat-plasma-application-to-a-comparative-pharmacokinetic-study-of-aqueous-extracts-of-raw-and-salt-processed-achyranthes-bidentata
#2
Yi Tao, Yingshan Du, Weidong Li, Baochang Cai
A simple, accurate and sensitive ultra high-performance liquid chromatography-tandem mass spectrometry approach was established for the simultaneous determination of β-ecdysterone, 25S-inokosterone, ginsenoside Ro, chikusetsusaponin IV and chikusetsusaponin IVa in rat plasma after oral administration of raw and salt-processed Achyranthes bidentata extract. The saponins were completely separated on a Waters BEH C18 UHPLC column by using acetonitrile/0.1% formic acid-water as mobile phases. The mass analysis was performed in a triple quadrupole mass spectrometer using multiple reaction monitoring (MRM) with negative scan mode...
January 9, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29330470/%C3%AE-ecdysterone-protects-sh-sy5y-cells-against-%C3%AE-amyloid-induced-apoptosis-via-c-jun-n-terminal-kinase-and-akt-associated-complementary-pathways
#3
Tianjiao Xu, Chengu Niu, Xiaojie Zhang, Miaoxian Dong
Recently, the significantly higher incidence of Alzheimer's disease (AD) in women than in men has been attributed to the loss of neuroprotective estrogen after menopause. Does phytoestrogen have the ability to protect against amyloid-β (Aβ) toxicity? The aim of this study was to evaluate hypothesis that β-ecdysterone (β-Ecd) protects SH-SY5Y cells from Aβ-induced apoptosis by separate signaling pathways involving protein kinase B (Akt) and c-Jun N-terminal kinase (JNK). Here, we demonstrate that phytoestrogen β-Ecd inhibits Aβ-triggered mitochondrial apoptotic pathway, as indicated by Bcl-2/Bax ratio elevation, cytochrome c (cyt c) release reduction, and caspase-9 inactivation...
January 12, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29138818/%C3%AE-%C3%A2-ecdysterone-promotes-autophagy-and-inhibits-apoptosis-in-osteoporotic-rats
#4
Yang-Hua Tang, Zhen-Shuang Yue, Da-Wei Xin, Lin-Ru Zeng, Zhen-Fei Xiong, Zhong-Qing Hu, Can-Da Xu
Osteoporosis is an aging process of skeletal tissues with characteristics of reductions in bone mass and microarchitectural deterioration of bone tissue. The present study aimed to investigate the effects of glucocorticoid‑induced osteoporosis on osteoblasts and to examine the roles of β‑ecdysterone (β‑Ecd) involved. In the present study, an in vivo model of osteoporosis was established through the subcutaneous implantation of prednisolone (PRED) into Sprague‑Dawley rats, with or without a subcutaneous injection of β‑Ecd (5 or 10 mg/kg body weight)...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115419/effect-of-%C3%AE-%C3%A2-ecdysterone-on-glucocorticoid%C3%A2-induced-apoptosis-and-autophagy-in-osteoblasts
#5
Yang-Hua Tang, Zhen-Shuang Yue, Guo-Song Li, Lin-Ru Zeng, Da-Wei Xin, Zhong-Qing Hu, Can-Da Xu
The aim of the present study was to investigate the effect of glucocorticoids in osteoblasts and to examine the role of β‑ecdysterone in the pathogenesis of glucocorticoid‑induced osteoporosis. Osteoblasts were induced from bone marrow mesenchymal stem cells, which were isolated from C57BL/6 mice. Cell viability and apoptosis of osteoblasts were measured by Cell Counting Kit‑8 and flow cytometry analysis, respectively. The expression of related genes and proteins was measured by reverse transcription quantitative polymerase chain reaction and western blot analysis respectively...
October 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28962889/a-new-clerodane-furano-diterpene-glycoside-from-tinospora-cordifolia-triggers-autophagy-and-apoptosis-in-hct-116-colon-cancer-cells
#6
Neha Sharma, Ashok Kumar, P R Sharma, Arem Qayum, Shashank K Singh, Prabhu Dutt, Satya Paul, Vivek Gupta, M K Verma, N K Satti, R Vishwakarma
ETHNOPHARMACOLOGICAL RELEVANCE: Tinospora cordifolia is a miraculous ayurvedic herb used in the treatment of innumerable diseases such as diabetes, gonorrhea, secondary syphilis, anaemia, rheumatoid arthritis, dermatological diseases, cancer, gout, jaundice, asthma, leprosy, in the treatment of bone fractures, liver & intestinal disorders, purifies the blood, gives new life to the whole body; (rejuvenating herb) and many more. Recent studies have revealed the anticancer potential of this plant but not much work has been done on the anticancer chemical constituents actually responsible for its amazing anticancer effects...
September 27, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28783121/isolation-and-purification-of-three-ecdysteroids-from-the-stems-of-diploclisia-glaucescens-by-high-speed-countercurrent-chromatography-and-their-anti-inflammatory-activities-in-vitro
#7
Lei Fang, Jialian Li, Jie Zhou, Xiao Wang, Lanping Guo
High-speed counter-current chromatography was used to separate and purify ecdysteroids for the first time from the stems of Diploclisia glaucescens using a two-phase solvent system composed of ethyl acetate-n-butanol-ethanol-water (3:0.2:0.8:3, v/v). Three ecdysteroids were obtained from 260 mg of ethyl acetate extract of the residue obtained after evaporation of the crude ethanolicextractof D. glaucescens in one-step separation, which were identified as paristerone (I, 30.5 mg), ecdysterone (II, 7.2 mg), and capitasterone (III, 8...
August 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28757891/pharmacokinetics-of-caffeic-acid-ferulic-acid-formononetin-cryptotanshinone-and-tanshinone-iia-after-oral-administration-of-naoxintong-capsule-in-rat-by-hplc-ms-ms
#8
Jin Li, Yang Bai, Yun Bai, Ruichao Zhu, Wei Liu, Jun Cao, Mingrui An, Zhijing Tan, Yan-Xu Chang
Naoxintong capsule (NXTC) was a famous patent medicine of Traditional Chinese Medicine (TCM) to treat cerebrovascular diseases in China. An LC-MS/MS method was developed for simultaneous determination of 11 major ingredients (paeoniflorin, ecdysterone, amygdalin, mulberroside A, caffeic acid, ferulic acid, salvianolic acid B, astragaloside IV, formononetin, cryptotanshinone, and tanshinone IIA) in NXTC in rat plasma. All analytes were separated on an Eclipse plus C18 column using a gradient mobile phase system of acetonitrile-0...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28385724/on-gonads-and-gadflies-the-estrus-angle
#9
Stephen G Hillier
The first sex steroid to be crystallized was the vertebrate ovarian hormone, estrone - a less potent metabolite of 17β-estradiol, which in mammals stimulates the female urge to mate (estrus). The gadfly (Greek oistros) lent its name to the process of estrus, as an insect that bites and torments in classical Greek mythology. With the purification and crystallization of a moult-inducing steroid (ecdysone) from insects, an interesting parallel emerged between mating and moulting in lower mammals and arthropods...
June 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28373010/ecdysterones-from-rhaponticum-carthamoides-willd-iljin-reduce-hippocampal-excitotoxic-cell-loss-and-upregulate-mtor-signaling-in-rats
#10
Jiming Wu, Le Gao, Lei Shang, Guihua Wang, Nana Wei, Tiantian Chu, Suping Chen, Yujun Zhang, Jian Huang, Jinhui Wang, Ruichao Lin
Glutamate-induced excitotoxicity is a key pathological mechanism in many neurological disease states. Ecdysterones derived from Rhaponticum carthamoides (Willd.) Iljin (RCI) have been shown to alleviate glutamate-induced neuronal damage; although their mechanism of action is unclear, some data suggest that they enhance signaling in the mechanistic target of rapamycin (mTOR) signaling pathway. This study sought to elucidate the mechanisms underlying ecdysterone-mediated neuroprotection. We used in silico target prediction and simulation methods to identify putative ecdysterone binding targets, and to specifically identify those that represent nodes where several neurodegenerative diseases converge...
June 2017: Fitoterapia
https://www.readbyqxmd.com/read/28018396/transcriptome-analysis-to-identify-the-putative-biosynthesis-and-transport-genes-associated-with-the-medicinal-components-of-achyranthes-bidentata-bl
#11
Jinting Li, Can Wang, Xueping Han, Wanzhen Qi, Yanqiong Chen, Taixia Wang, Yi Zheng, Xiting Zhao
Achyranthes bidentata is a popular perennial medicine herb used for 1000s of years in China to treat various diseases. Although this herb has multiple pharmaceutical purposes in China, no transcriptomic information has been reported for this species. In addition, the understanding of several key pathways and enzymes involved in the biosynthesis of oleanolic acid and ecdysterone, two pharmacologically active classes of metabolites and major chemical constituents of A. bidentata root extracts, is limited. The aim of the present study was to characterize the transcriptome profile of the roots and leaves of A...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27929032/ecdysteroid-containing-food-supplements-from-cyanotis-arachnoidea-on-the-european-market-evidence-for-spinach-product-counterfeiting
#12
Attila Hunyadi, Ibolya Herke, Katalin Lengyel, Mária Báthori, Zoltán Kele, András Simon, Gábor Tóth, Kálmán Szendrei
Phytoecdysteroids like 20-hydroxyecdysone ("ecdysterone") can exert a mild, non-hormonal anabolic/adaptogenic activity in mammals, and as such, are frequently used in food supplements. Spinach is well-known for its relatively low ecdysteroid content. Cyanotis arachnoidea, a plant native in China, is among the richest sources of phytoecdysteroids, and extracts of this plant are marketed in tons per year amounts via the internet at highly competitive prices. Here we report the investigation of a series of food supplements produced in Germany and claimed to contain spinach extracts...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27824901/the-sublethal-effects-of-%C3%AE-ecdysterone-a-highly-active-compound-from-achyranthes-bidentata-blume-on-grape-phylloxera-daktulosphaira-vitifoliae-fitch
#13
Yongqiang Liu, Fuqian Yang, Hongtie Pu, Junping Su, Zongjiang Liu, Khalid Hussain Dhiloo, Zhongyue Wang
Grape phylloxera, Daktulosphaira vitifoliae (Fitch) (Hemiptera, Phylloxeridae), is a very destructive insect pest of grapevines. Intercropping of Achyranthes bidentata Blume (f. Amaranthaceae) and Vitis spp. grapevines can be useful to control this pest. In the present study, the toxicity of 22 compounds, known to be present in A. bidentata, to grape phylloxera was evaluated. All treatments were toxic towards grape phylloxera but the degree of toxicity differed between treatments. Among the 22 tested compounds, several of which proved toxic towards grape phylloxera...
2016: PloS One
https://www.readbyqxmd.com/read/27688248/synergistic-protective-effect-of-paeoniflorin-and-%C3%AE-ecdysterone-against-rotenone-induced-neurotoxicity-in-pc12-cells
#14
Han Liu, Chunlei Yu, Tianjiao Xu, Xiaojie Zhang, Miaoxian Dong
There are several factors, like oxidative stress and neurons loss, involving neurodegenerative diseases such as Parkinson's disease (PD). The combination of antioxidant and anti-apoptotic agent is becoming a promising approach to fight against PD. This study evaluates the hypothesis that paeoniflorin (PF) and β-ecdysterone (β-Ecd) synergize to protect PC12 cells against toxicity induced by PD-related neurotoxin rotenone. The combination of PF and β-Ecd, hereafter referred to as the PF/β-Ecd, at suboptimal concentrations increased the viability of rotenone-exposed PC12 cells in a synergistic manner...
September 29, 2016: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/27448766/nitric-oxide-and-erk-mediates-regulation-of-cellular-processes-by-ecdysterone
#15
Athira Omanakuttan, Chinchu Bose, Nanjan Pandurangan, Geetha B Kumar, Asoke Banerji, Bipin G Nair
The complex process of wound healing is a major problem associated with diabetes, venous or arterial disease, old age and infection. A wide range of pharmacological effects including anabolic, anti-diabetic and hepato-protective activities have been attributed to Ecdysterone. In earlier studies, Ecdysterone has been shown to modulate eNOS and iNOS expression in diabetic animals and activate osteogenic differentiation through the Extracellular-signal-Regulated Kinase (ERK) pathway in periodontal ligament stem cells...
August 15, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27399832/phytoecdysteroids-containing-extract-from-stachys-hissarica-plant-and-its-wound-healing-activity
#16
Nurmurod Sh Ramazanov, Isomiddin D Bobayev, Ugiloy Y Yusupova, Namuna K Aliyeva, Feruza R Egamova, Nigora Kh Yuldasheva, Vladimir N Syrov
A number of phytoecdysteroid compounds, such as ecdysterone, polipodin V, 2-deoxy-20-hydroxyecdysone, integristeron A and 2-deoxydizon were isolated from Stachys hissarica plant and their structures were confirmed by NMR, mass and IR spectroscopy. In addition, the biological activity of the S. hissarica plant's extract was tested on rats for wound healing activity. It was shown that the extract at repeated oral (per os) administration at a dose of 10 mg/kg speeds up the healing process of linear skin wounds in rats...
March 2017: Natural Product Research
https://www.readbyqxmd.com/read/27261848/antioxidant-and-hepatoprotective-effects-of-ajuga-nipponensis-extract-by-ultrasonic-assisted-extraction
#17
Chang-Wei Hsieh, Wen-Ching Ko, Wai-Jane Ho, Chao-Kai Chang, Guo-Jhou Chen, Jen-Chieh Tsai
OBJECTIVE: To investigate suitable condition for extraction of the active components from Ajuga nipponensis (A. nipponensis). METHODS: Orthogonal experimental design was used to determine the optimal extraction parameters for ecdysterones and flavonoids. Finally, the hepatoprotective abilities of A. nipponensis extracts were evaluated by CCl4-induced animal models. RESULTS: Maximum yields of flavonoids (7.87 ± 0.10) mg/g and ecdysterones (0...
May 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27254921/-chemical-constituents-of-citrus-medica-fruit
#18
Wei Yin, Zu-rong Song, Jin-qi Liu, Guo-sheng Zhang
OBJECTIVE: To study the chemical constituents of Citrus medica fruit. METHODS: The fruit of Citrus medica was extracted with 95% EtOH, and the compounds were separated and purified by silica gel, RP-18 and Sephadex LH-20 column chromatography. The structures were identified by spectroscopic analysis. RESULTS: A total of 16 compounds were isolated and identified, including methyl ferulic acid (1), dihydro-N-caffeoyltyramine (2) acacetin (3), β-ecdysterone (4), (-)-balanophonin (5), p-methoxy cinnamic acid (6), umbelliferone (7), ferulic acid (8), pyrocatechualdehyde (9), diosmetin (10), 4-methoxy salicylic acid (1), β-amyrin acetate (12), epigallocatechin (13), betulinic acid (14), lupeol (15) and nicotinamide (16)...
October 2015: Zhong Yao Cai, Zhongyaocai, Journal of Chinese Medicinal Materials
https://www.readbyqxmd.com/read/27229883/%C3%AE-ecdysterone-protects-sh-sy5y-cells-against-6-hydroxydopamine-induced-apoptosis-via-mitochondria-dependent-mechanism-involvement-of-p38-mapk-p53-signaling-pathway
#19
Zhi Pan, Yingcai Niu, Yini Liang, Xiaojie Zhang, Miaoxian Dong
Parkinson's disease (PD) is a neurological disorder pathologically characterized by loss of dopaminergic neurons in the substantia nigra. No curative therapy is available for PD. We recently found that phytoestrogen β-ecdysterone (β-Ecd) is able to reduce MPP(+)-induced apoptosis in PC12 cells. This study investigated the potential of β-Ecd to protect against SH-SY5Y cell apoptosis induced by the PD-related neurotoxin 6-hydroxydopamine (6-OHDA) and the underlying mechanism for this cytoprotection. In the present study, pretreatment with β-Ecd significantly reduced 6-OHDA-induced apoptosis of SH-SY5Y cells by a mitochondria-dependent pathway, as indicated by downregulation of Bax and PUMA (p53 upregulated modulator of apoptosis) expression, suppressing ΔΨm loss, inhibiting cytochrome c release, and attenuating caspase-9 activation...
October 2016: Neurotoxicity Research
https://www.readbyqxmd.com/read/26986217/uvb-radiation-delays-tribolium-castaneum-metamorphosis-by-influencing-ecdysteroid-metabolism
#20
Wen Sang, Lin Yu, Li He, Wei-Hua Ma, Zhi-Hui Zhu, Fen Zhu, Xiao-Ping Wang, Chao-Liang Lei
Ultraviolet B (UVB) radiation is an important environmental factor. It is generally known that UVB exhibits high genotoxicity due to causing DNA damage, potentially leading to skin carcinogenesis and aging in mammals. However, little is known about the effects of UVB on the development and metamorphosis of insects, which are the most abundant terrestrial animals. In the present study, we performed dose-response analyses of the effects UVB irradiation on Tribolium castaneum metamorphosis, assessed the function of the T...
2016: PloS One
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