keyword
MENU ▼
Read by QxMD icon Read
search

Eurycoma

keyword
https://www.readbyqxmd.com/read/29154863/development-of-a-selective-hplc-dad-elsd-method-for-the-qualitative-and-quantitative-assessment-of-commercially-available-eurycoma-longifolia-products-and-plant-extracts
#1
Benjamin Mutschlechner, Stefan Schwaiger, Van Anh Thi Tran, Hermann Stuppner
Aqueous extracts of the roots of Eurycoma longifolia are traditionally used to improve sexual performance, to treat infertility and other sexual dysfunctions but also to increase muscle strength. Nowadays, many different products are commercially available which are promoted as E. longifolia extracts and claim to possess beneficial aphrodisiac effects. Since such herbal aphrodisiac preparations have been recently the target of fraudulent product counterfeiting and because eurycomanone, one of the main quassinoids of E...
November 14, 2017: Fitoterapia
https://www.readbyqxmd.com/read/29146110/exploring-molecular-mechanism-of-bone-forming-capacity-of-eurycoma-longifolia-evidence-of-enhanced-expression-of-bone-related-biomarkers
#2
Hnin Ei Thu, Isa Naina Mohamed, Zahid Hussain, Ahmad Nazrun Shuid
BACKGROUND: Among the numerous well-documented medicinal herbs, Eurycoma longifolia (EL) has gained remarkable recognition due to its promising efficacy of stimulating bone formation in androgen-deficient osteoporosis. Though numerous animal studies have explored the bone-forming capacity of EL, the exact mechanism was yet to be explored. OBJECTIVES: The present study was aimed to investigate the mechanism of bone-forming capacity of EL using MC3T3-E1 as an in vitro osteoblastic model...
November 13, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29130786/production-of-eurycomanone-from-cell-suspension-culture-of-eurycoma-longifolia
#3
Nguyen Huu Nhan, Nguyen Hoang Loc
CONTEXT: Eurycomanone is found in the Eurycoma longifolia Jack (Simaroubaceae) tree, exhibits significant antimalarial activity, improves spermatogenesis, suppresses expression of lung cancer cell tumour markers and regulates signalling pathways involved in proliferation, cell death and inflammation. OBJECTIVES: Establishment of cell suspension culture of E. longifolia to determine the eurycomanone accumulation during cultures. MATERIALS AND METHODS: Callus of E...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28948658/polar-quassinoids-in-standardized-eurycoma-longifolia-extract-formulated-into-a-lipid-based-solid-dispersion-to-improve-rat-sperm-count
#4
Hai-Qiu Ma, Forough Ebrahimi, Bin-Seng Low, Nurzalina Abdul Karim Khan, Kit-Lam Chan
Eurycoma longifolia Jack is popularly sought in Southeast Asian countries for traditional remedies to improve sexual performance and fertility. 13α(21)-Epoxyeurycomanone and eurycomanone, two major quassinoids in a root extract (TAF2) were reported to improve rat spermatogenesis and fertility. Unfortunately, these quassinoids possess low bioavailability because of high aqueous solubility and low lipid membrane permeability. Often, other possible barriers may be P-glycoprotein (P-gp) efflux in the gut and presystemic hepatic metabolism...
September 26, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28839372/quassinoids-from-the-root-of-eurycoma-longifolia-and-their-antiproliferative-activity-on-human-cancer-cell-lines
#5
Nguyen Huu Tung, Takuhiro Uto, Nguyen Thanh Hai, Gang Li, Yukihiro Shoyama
BACKGROUND: The roots of Eurycoma longifolia Jack have traditionally been used as an aphrodisiac tonic besides the other remedies for boils, fever, bleeding gums, and wound ulcer. Recently, the antiproliferative activity of E. longifolia has been reported and remained attractive to natural chemists. OBJECTIVE: The objective of this study was to study on antiproliferative compounds from the root of E. longifolia. MATERIALS AND METHODS: Column chromatography was used to separate individual compounds, spectroscopic data including nuclear magnetic resonances and mass spectrometry were analyzed to determine the chemical structure of the isolates and for biological testing, antiproliferative activity of compounds was tested on seven human cancer cell lines (KATO III, HCT-15, Colo205, HepG2, PC-3, Jurkat, HL-60) by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28831222/semen-characteristics-extension-and-cryopreservation-of-rusa-deer-rusa-timorensis
#6
Wan-Nor Fitri, Haron Wahid, Yusoff Rosnina, Faez Firdaus Abdullah Jesse, Zainal Abidin Aimi-Sarah, Mohd Lila Mohd-Azmi, Che' Amat Azlan, Muhammad Rashid Azrolharith, Innocent Damudu Peter, Falah Hasan Ali Baiee
AIM: The objective of this research is to report parameters for breeding soundness evaluation, semen extension, and cryopreservation in Rusa timorensis. MATERIALS AND METHODS: Seven healthy stags were chosen for semen collection using an electroejaculator. The collections were performed twice in a breeding season between February and June 2016. Samples were collected between 2 and 3 weeks interval, collected twice for each animal. Semen was evaluated, extended, and cryopreserved using four different extenders; Andromed(®), BioXcell(®), Triladyl(®), and a modified Tris-egg yolk combined with Eurycoma longifolia Jack...
July 2017: Veterinary World
https://www.readbyqxmd.com/read/28760530/isolation-and-lipolytic-activity-of-eurycomanone-and-its-epoxy-derivative-from-eurycoma-longifolia
#7
Lucy Lahrita, Ryota Hirosawa, Eisuke Kato, Jun Kawabata
Eurycomanone (1) and 13β,21-epoxyeurycomanone (2) were isolated from Eurycoma longifolia for studies of lipolytic activity. Compound 1 enhanced lipolysis in adipocytes with an EC50 of 14.6μM, while its epoxy derivate, compound 2, had a stronger activity with an EC50 of 8.6μM. Based on molecular mechanistic study using several specific inhibitors to lipolytic signaling pathways, it was found that PKA inhibitor totally diminished the lipolytic activity of 1 and 2. Further immunoblotting analysis confirmed the activation of phosphorylated PKA by both 1 and 2...
September 1, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28721818/eurycoma-longifolia-a-potential-phytomedicine-for-the-treatment-of-cancer-evidence-of-p53-mediated-apoptosis-in-cancerous-cells
#8
Hnin Ei Thu, Zahid Hussain, Isa Naina Mohamed, Ahmad Nazrun Shuid
BACKGROUND: Eurycoma longifolia is a well-documented herbal medicine that has gained widespread recognition due to its versatile pharmacological activities including anticancer, anti-malarial, antimicrobial, antioxidant, aphrodisiac, anti-inflammatory, anxiolytic, anti-diabetic, anti-rheumatism and anti-ulcer. Plethora of in vitro and in vivo studies evidenced their excellent anti-proliferative and anticancer efficacy against various types of human cancers. OBJECTIVE: This review was aimed to critically analyze the therapeutic viability and anticancer efficacy of Eurycoma longifolia in the treatment of cancer and also to propose its molecular and translational mechanism of cytotoxicity against cancerous cells...
July 18, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28441546/isolation-of-new-polyacetylenes-from-the-roots-of-eurycoma-longifolia-via-high-speed-counter-current-chromatography
#9
Minglong Wang, Huijuan Zou, Qibin Chen, Jianguo Cao, Haji Akber Aisa, Guozheng Huang
Eurycoma longifolia is a tropical plant of diverse applications in folk medicine, which occurs in Southeast Asia. In this study, pre-purified fraction (0.86g) of the crude extracts from the roots of E. longifolia, was subjected to preparative high-speed counter-current chromatography (HSCCC) with a two-phase solvent system composed of hexane-ethyl acetate-methanol-water (HEMWat) at a volume ratio of 5:2:5:2 (v/v). Longifolione A (1, 19mg, purity 96.0%) and longifolione C (3, 317mg, purity 96.2%), together with longifolione B (2, purity 77...
June 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28306342/nmr-based-plasma-metabolomic-discrimination-for-male-fertility-assessment-of-rats-treated-with-eurycoma-longifolia-extracts
#10
Forough Ebrahimi, Baharudin Ibrahim, Chin-Hoe Teh, Vikneswaran Murugaiyah, Kit-Lam Chan
Male infertility is one of the leading causes of infertility which affects many couples worldwide. Semen analysis is a routine examination of male fertility status which is usually performed on semen samples obtained through masturbation that may be inconvenient to patients. Eurycoma longifolia (Tongkat Ali, TA), native to Malaysia, has been traditionally used as a remedy to boost male fertility. In our recent studies in rats, upon the administration of high-quassinoid content extracts of TA including TA water (TAW), quassinoid-rich TA (TAQR) extracts, and a low-quassinoid content extract including quassinoid-poor TA (TAQP) extract, sperm count (SC) increased in TAW- and TAQR-treated rats when compared to the TAQP-treated and control groups...
June 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/28259255/eurycoma-longifolia-as-a-potential-adoptogen-of-male-sexual-health-a-systematic-review-on-clinical-studies
#11
REVIEW
Hnin Ei Thu, Isa Naina Mohamed, Zahid Hussain, Putri Ayu Jayusman, Ahmad Nazrun Shuid
Eurycoma longifolia (EL) has been well recognized as a booster of male sexual health. Over the past few decades, numerous in vivo animal studies and human clinical trials have been conducted across the globe to explore the promising role of EL in managing various male sexual disorders, which include erectile dysfunction, male infertility, low libido, and downregulated testosterone levels. The aim of the present review is to analyze and summarize the literature on human clinical trials which revealed the clinical significance and therapeutic feasibility of EL in improving male sexual health...
January 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28226311/effects-of-root-extracts-of-eurycoma-longifolia-jack-on-corpus-cavernosum-of-rat
#12
Bae Huey Tee, See Ziau Hoe, Swee Hung Cheah, Sau Kuen Lam
OBJECTIVE: This study was conducted to investigate the mechanisms of action of Eurycoma longifolia in rat corpus cavernosum. MATERIALS AND METHODS: Tincture of the roots was concentrated to dryness by evaporating the ethanol in vacuo. This ethanolic extract was partitioned into 5 fractions sequentially with hexane, dichloromethane (DCM), ethyl acetate, butanol, and water. The corpus cavernosum relaxant activity of each fraction was investigated. The DCM fraction which showed the highest potency in relaxing phenylephrine-precontracted corpora cavernosa was purified by column chromatography...
2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28028887/phytochemical-analysis-of-a-cytotoxic-fraction-of-quassia-silvestris-using-lc-hr-esi-ms-n
#13
Michel Feussi Tala, Ferdinand Mouafo Talontsi, Guang-Zhi Zeng, Hippolyte Kamdem Wabo, Michael Spiteller, Ning-Hua Tan, Pierre Tane
INTRODUCTION: The genus Quassia is a promising source of secondary metabolites with biological potential including antimalarial and cytotoxic activities. Limited data are available on the phytochemistry and pharmacology of Quassia silvestris Cheek & Jongkind, a Cameroonian medicinal plant used to treat various ailments. OBJECTIVES: To carry out the bioassay-guided fractionation and LC-HR-ESI-MS analyses of the leaves extract from Q. silvestris; to purify the active fractions and isolate the major compounds using different chromatographic and spectroscopic methods...
May 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/27818256/eurycoma-longifolia-as-a-potential-alternative-to-testosterone-for-the-treatment-of-osteoporosis-exploring-time-mannered-proliferative-differentiative-and-morphogenic-modulation-in-osteoblasts
#14
COMPARATIVE STUDY
Hnin Ei Thu, Isa Naina Mohamed, Zahid Hussain, Ahmad Nazrun Shuid
ETHNOPHARMACOLOGICAL RELEVANCE: Eurycoma longifolia (EL) has been well-studied traditionally as a chief ingredient of many polyherbal formulations for the management of male osteoporosis. It has also been well-recognised to protect against bone calcium loss in orchidectomised rats. AIM OF THE STUDY: To evaluate the effects of EL on the time-mannered sequential proliferative, differentiative, and morphogenic modulation in osteoblasts compared with testosterone. MATERIALS AND METHODS: Cell proliferation was analysed using MTS assay and phase contrast microscopy...
January 4, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27800486/first-report-of-eurycoma-longifolia-jack-root-extract-causing-relaxation-of-aortic-rings-in-rats
#15
Bae Huey Tee, See Ziau Hoe, Swee Hung Cheah, Sau Kuen Lam
Although Eurycoma longifolia has been studied for erectile function, the blood pressure- (BP-) lowering effect has yet to be verified. Hence, this study aims at investigating the BP-lowering properties of the plant with a view to develop an antihypertensive agent that could also preserve erectile function. Ethanolic root extract was partitioned by hexane, dichloromethane (DCM), ethyl acetate, butanol, and water. The DCM fraction, found to be potent in relaxing phenylephrine- (PE-) precontracted rat aortic rings, was further purified by column chromatography...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27695271/inhibition-of-human-cytochrome-p450-2c8-catalyzed-amodiaquine-n-desethylation-effect-of-five-traditionally-and-commonly-used-herbs
#16
Yasotha Devi Muthiah, Chin Eng Ong, Siti Amrah Sulaiman, Rusli Ismail
BACKGROUND: In Southeast Asia and many parts of the world, herbal products are increasingly used in parallel with modern medicine. OBJECTIVE: This study aimed to investigate the effects of herbs commonly used in Southeast Asia on activity of cytochrome P450 2C8 (CYP2C8), an important human hepatic enzyme in drug metabolism. MATERIALS AND METHODS: The selected herbs, such as Eurycoma longifolia Jack (ELJ), Labisia pumila (LP), Echinacea purpurea (EP), Andrographis paniculata (AP), and Ginkgo biloba (GB), were subjected to inhibition studies using an in vitro CYP2C8 activity marker, amodiaquine N-desethylase assay...
October 2016: Pharmacognosy Research
https://www.readbyqxmd.com/read/27399233/1hnmr-based-discriminatory-analysis-of-eurycoma-longifolia-from-different-locations-and-establishing-a-profile-for-primary-metabolites-identification-and-quassinoids-quantification
#17
Forough Ebrahimi, Baharudin Ibrahim, Chin Hoe Teh, Vikneswaran Murugaiyah, Chan Kit Lam
Quassinoids, the major secondary metabolites of Eurycoma longifolia roots, improve male fertility. Hence, it is crucial to investigate their quantitative level in E. longifolia extracts. A profile was established to identify the primary metabolites and major quassinoids, and quantify quassinoids using external calibration curves. Furthermore, the metabolic discrimination of E. longifolia roots from different regions was investigated. The (1)H-NMR spectra of the quassinoids, eurycomanone, eurycomanol, 13,21-dihydroeurycomanone, and eurycomanol-2-O-β-D-glycopyranoside were obtained...
January 2017: Planta Medica
https://www.readbyqxmd.com/read/27144555/development-of-chromatographic-fingerprints-of-eurycoma-longifolia-tongkat-ali-roots-using-online-solid-phase-extraction-liquid-chromatography-spe-lc
#18
Nor Nasriah Zaini, Rozita Osman, Hafizan Juahir, Norashikin Saim
E. longifolia is attracting interest due to its pharmacological properties and pro-vitality effects. In this study, an online SPE-LC approach using polystyrene divinyl benzene (PSDVB) and C18 columns was developed in obtaining chromatographic fingerprints of E. longifolia. E. longifolia root samples were extracted using pressurized liquid extraction (PLE) technique prior to online SPE-LC. The effects of mobile phase compositions and column switching time on the chromatographic fingerprint were optimized. Validation of the developed method was studied based on eurycomanone...
April 30, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/26978330/review-on-a-traditional-herbal-medicine-eurycoma-longifolia-jack-tongkat-ali-its-traditional-uses-chemistry-evidence-based-pharmacology-and-toxicology
#19
REVIEW
Shaheed Ur Rehman, Kevin Choe, Hye Hyun Yoo
Eurycoma longifolia Jack (known as tongkat ali), a popular traditional herbal medicine, is a flowering plant of the family Simaroubaceae, native to Indonesia, Malaysia, Vietnam and also Cambodia, Myanmar, Laos and Thailand. E. longifolia, is one of the well-known folk medicines for aphrodisiac effects as well as intermittent fever (malaria) in Asia. Decoctions of E. longifolia leaves are used for washing itches, while its fruits are used in curing dysentery. Its bark is mostly used as a vermifuge, while the taproots are used to treat high blood pressure, and the root bark is used for the treatment of diarrhea and fever...
March 10, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/26899442/urinary-nmr-based-metabolomic-analysis-of-rats-possessing-variable-sperm-count-following-orally-administered-eurycoma-longifolia-extracts-of-different-quassinoid-levels
#20
Forough Ebrahimi, Baharudin Ibrahim, Chin-Hoe Teh, Vikneswaran Murugaiyah, Kit-Lam Chan
ETHNOPHARMACOLOGICAL RELEVANCE: Eurycoma longifolia (Tongkat Ali, TA) roots have been ethnically used as a remedy to boost male sexual desire, libido, energy and fertility. AIM OF THE STUDY: The study evaluated the effect of TA extracts with different quassinoid levels on rats sperm count and examined corresponding post-treatment urinary metabolic changes. MATERIALS AND METHODS: Twenty-four male Sprague-Dawley rats, categorized into 4 groups of 6 rats each, were orally administered for 48 days with water for the control (group 1), 125mg/kg of TA water extract (TAW, group 2), 125mg/kg of TA quassinoid-poor extract (TAQP, group 3) and 21mg/kg of TA quassinoid-rich extract (TAQR, group 4)...
April 22, 2016: Journal of Ethnopharmacology
keyword
keyword
65266
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"