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chlorogenic acid

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https://www.readbyqxmd.com/read/28095717/functional-constituents-of-wild-and-cultivated-goji-l-barbarum-l-leaves-phytochemical-characterization-biological-profile-and-computational-studies
#1
Andrei Mocan, Gökhan Zengin, Mario Simirgiotis, Michaela Schafberg, Adriano Mollica, Dan C Vodnar, Gianina Crişan, Sascha Rohn
Goji (Lycium barbarum L.) leaves are emphasized as a functional tea or as dietary supplements. The phenolic compound profile, antioxidant, enzyme inhibitory, antimicrobial, and antimutagenic activities of leaf extracts from two selected cultivars in comparison with wild-growing plants have been evaluated. HPLC-DAD/ESI-ToF-MS analysis revealed the presence of phenolic acids and flavonoids with chlorogenic acid and rutin being the dominant compounds in the cultivated plants, whereas rutin and kaempeferol-3-O-rutinoside for wild growing ones...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28093303/chlorogenic-acid-rescues-sensorineural-auditory-function-in-a-diabetic-animal-model
#2
Bin Na Hong, Youn Hee Nam, Sang Ho Woo, Tong Ho Kang
Recently, many studies have reported that sensorineural hearing impairment related to neurological disorders may be caused by diabetes mellitus. However, to date, only a small number of studies have investigated the treatment of sensorineural hearing impairment. In the present study, the effects of chlorogenic acid on diabetic auditory pathway impairment were evaluated by neuro-electrical physiological measurements and morphological investigations. We have shown that CA efficiently prevents the progression of auditory pathway dysfunction caused by DM using auditory brainstem responses and auditory middle latency responses in mice...
January 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28089660/characterization-pharmacokinetics-and-tissue-distribution-of-chlorogenic-acid-loaded-self-microemulsifying-drug-delivery-system
#3
Li Chen, Chang-Shun Liu, Qing-Zhen Chen, Sen Wang, Yong-Ai Xiong, Jing Jing, Jia-Jia Lv
The purpose of this study was to develop a self-microemulsifying drug delivery system (SMEDDS) to improve the oral bioavailability of Chlorogenic acid (CA), an important bioactive compound from Lonicerae Japonicae Flos with poor permeability. SMEDDS was prepared and characterized by self-emulsifying rate, morphological observation, droplet size determination, stability, in vitro release, in vivo bioavailability and tissue distribution experiments. Results shown that the SMEDDS of CA has a high self-emulsifying rate (>98%) in the dissolution media, and its microemulsion exhibits small droplet size (16...
January 12, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28088700/chlorogenic-acid-ameliorated-concanavalin-a-induced-hepatitis-by-suppression-of-toll-like-receptor-4-signaling-in-mice
#4
Yinglin Yuan, Xia Gong, Li Zhang, Rong Jiang, Junxia Yang, Bin Wang, Jingyuan Wan
Chlorogenic acid (CGA), one of the most abundant dietary polyphenolic compounds, has been reported to exhibit anti-inflammatory ability. However, the hepatoprotective effects and molecular mechanisms of CGA on concanavalin A (Con A)-induced hepatitis have not been explored. In the present study, we found that pretreatment with CGA dose-dependently inhibited the elevation of plasma aminotransferases and alleviated hepatic pathological damage as well as hepatocyte apoptosis in Con A-exposed mice. Additionally, CGA markedly suppressed the production of serum tumor necrosis factor (TNF)-α and interferon (IFN)-γ, alleviated the infiltration of hepatic macrophages, neutrophils, and activated CD4(+) T lymphocytes in Con A-primed mice...
January 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28074952/upregulation-of-caveolin-1-by-mulberry-leaf-extract-and-its-major-components-chlorogenic-acid-derivatives-attenuates-alcoholic-steatohepatitis-via-inhibition-of-oxidative-stress
#5
Yi-Ju Lee, Jeng-Dong Hsu, Wea-Lung Lin, Shao-Hsuan Kao, Chau-Jong Wang
Excessive alcohol uptake exerts hepatocellular toxicity, ultimately leading to multiple liver diseases such as steatohepatitis and liver cirrhosis. Here, we aimed to explore the effects of mulberry leaf extract (MLE) and its major components chlorogenic acid (CGA) and neochlorogenic acid (nCGA) on alcoholic steatohepatitis. We determined the composition of MLE using liquid chromatography-mass spectrometric (LC-MS) analysis, which showed that MLE consisted of mainly chlorogenic acid derivatives and other polyphenols...
January 11, 2017: Food & Function
https://www.readbyqxmd.com/read/28073097/moringa-oleifera-a-species-with-potential-analgesic-and-anti-inflammatory-activities
#6
Claudia Lizbeth Martínez-González, Laura Martínez, Efraín J Martínez-Ortiz, María Eva González-Trujano, Myrna Déciga-Campos, Rosa Ventura-Martínez, Irene Díaz-Reval
Moringa oleifera has long been used in large demand in folk medicine to treat pain. The present study was undertaken to examine the antinociceptive and anti-inflammatory spectrum of M. oleifera leaf extracts discriminating the constituents' nature by using different kind of experimental models in rats. Pharmacological evaluation of a non-polar and/or polar extracts at several doses (30-300mg/kg, p.o.) was explored through experimental nociception using formalin test, carrageenan-induced paw edema and arthritis with subcutaneous injection of collagen in rats...
January 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28064427/biochemical-and-molecular-study-of-carpobrotus-edulis-bioactive-properties-and-their-effects-on-dugesia-sicula-turbellaria-tricladida-regeneration
#7
Emna Meddeb, Mohamed Charni, Tesnime Ghazouani, Autilia Cozzolino, Florinda Fratianni, Faten Raboudi, Filomena Nazzaro, Sami Fattouch
The traditional medicinal properties of Carpobrotus edulis are well recognized, particularly in Tunisia where it is used for wound healing. Thus, in this study, biochemical and molecular properties of its leaves' bioactive aqueous-acetone extract were investigated. The total phenolic content (TPC) of the extract was estimated to be 184 ± 5 mg/100 g of fresh matter (FM). The qualitative and quantitative polyphenolic profile was determined by ultra performance liquid chromatography with diode array detection (UPLC-DAD) and showed that chlorogenic acid was the major compound (43...
January 7, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28061036/antioxidant-antidiabetic-and-antihypertensive-properties-of-echinacea-purpurea-flower-extract-and-caffeic-acid-derivatives-using-in-vitro-models
#8
Shiow-Ying Chiou, Jih-Min Sung, Po-Wei Huang, Sheng-Dun Lin
The extraction yield, total phenols, caffeic acid derivatives (CAD), and antioxidant properties of 50% ethanolic Echinacea purpurea flower extract were determined. The in vitro inhibitory effects of 50% ethanolic extract and CAD on α-amylase, α-glucosidase, and angiotensin-converting enzyme (ACE) linked with type 2 diabetes were also investigated. The extraction yield, total phenols, and total CAD of the extract were 27.04%, 195.69 mg CAE/g and 78.42 mg/g, respectively. Cichoric acid (56.03 mg/g) was the predominant CAD compound in the extract...
January 6, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28056918/fermented-blueberry-juice-extract-and-its-specific-fractions-have-an-anti-adipogenic-effect-in-3%C3%A2-t3-l1-cells
#9
Mayra L Sánchez-Villavicencio, Melinda Vinqvist-Tymchuk, Wilhelmina Kalt, Chantal Matar, Francisco J Alarcón Aguilar, Maria Del Carmen Escobar Villanueva, Pierre S Haddad
BACKGROUND: Obesity and Type 2 diabetes have reached epidemic status worldwide. Wild lowbush blueberry (Vaccinium angustifolium Aiton) is a plant of the North American Aboriginal traditional pharmacopeia with antidiabetic potential, especially when it is fermented with Serratia vaccinii. METHODS: A phytochemical fractionation scheme was used to identify potential bioactive compounds as confirmed by HPLC retention times and UV-Vis spectra. 3 T3-L1 cells were differentiated for 7 days with either Normal Blueberry Extract (NBE), Fermented Blueberry Extract (FBE/F1), seven fractions and four pure compounds...
January 6, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28052238/anti-psoriatic-potential-of-solanum-xanthocarpum-stem-in-imiquimod-induced-psoriatic-mice-model
#10
Komal M Parmar, Prakash R Itankar, Apurva Joshi, Satyendra K Prasad
ETHNOPHARMACOLOGICAL RELEVANCE: The plant Solanum xanthocarpum Schrad. & Wendl. (Solanaceae) is one of the members of the dashamula (ten roots) in Ayurvedic system of medicine. The stem and fruits are used as an antipyretic, antiasthmatic and is prescribed in skin infections and for relief in burning sensation in the feet accompanied by vesicular eruptions. OBJECTIVE: To scientifically validate the anti-psoriatic potential of Solanum xanthocarpum stem in Imiquimod-induced psoriatic mice model MATERIALS AND METHODS: Ethanolic stems extract of Solanum xanthocarpum (ESX) was first subjected to phytochemical screening and quantification of identified phytoconstituents, which was further standardized with the help of HPTLC using chlorogenic acid as a marker...
January 1, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28049060/a-comparative-study-of-the-dynamic-accumulation-of-polyphenol-components-and-the-changes-in-their-antioxidant-activities-in-diploid-and-tetraploid-lonicera-japonica
#11
Dexin Kong, Yanqun Li, Mei Bai, Yali Deng, Guangxin Liang, Hong Wu
Polyploidization is an effective method to achieve a higher yield of secondary metabolism active ingredients in medicinal plants. Polyphenols are the main active substances that contribute to the antioxidant activity of Lonicera japonica. For studying on the effect of chromosome doubling and harvest time on the dynamic accumulation of the main active substances and antioxidant capabilities of L. japonica, the polyphenol composition contents (7 phenolic acids and 3 flavonoids) and the antioxidant capacity in buds and flowers of diploid and tetraploid L...
December 28, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28045590/molecular-cloning-purification-and-characterization-of-a-novel-thermostable-cinnamoyl-esterase-from-lactobacillus-helveticus-kccm-11223
#12
Young-Ran Song, Sang-Ho Baik
A gene encoding cinnamoyl esterase (CE), which breaks down chlorogenic acid (ChA) into caffeic and quinic acids, was cloned from Lactobacillus helveticus KCCM 11223. The gene with an open reading frame (ORF) of 759 nucleotides was expressed in Escherichia coli, which resulted in a 51.6-fold increase in specific activity compared to L. helveticus KCCM 11223. The recombinant CE exists as a monomeric enzyme having a molecular weight of 27.4 kDa. Although the highest activity was observed at pH 7, the enzyme showed stable activity at pH 4...
January 3, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28045028/chlorogenic-acid-inhibits-glioblastoma-growth-through-repolarizating-macrophage-from-m2-to-m1-phenotype
#13
Nina Xue, Qin Zhou, Ming Ji, Jing Jin, Fangfang Lai, Ju Chen, Mengtian Zhang, Jing Jia, Huarong Yang, Jie Zhang, Wenbin Li, Jiandong Jiang, Xiaoguang Chen
Glioblastoma is an aggressive tumor that is associated with distinctive infiltrating microglia/macrophages populations. Previous studies demonstrated that chlorogenic acid (5-caffeoylquinic acid, CHA), a phenolic compound with low molecular weight, has an anti-tumor effect in multiple malignant tumors. In the present study, we focused on the macrophage polarization to investigate the molecular mechanisms behind the anti-glioma response of CHA in vitro and in vivo. We found that CHA treatment increased the expression of M1 markers induced by LPS/IFNγ, including iNOS, MHC II (I-A/I-E subregions) and CD11c, and reduced the expression of M2 markers Arg and CD206 induced by IL-4, resulting in promoting the production of apoptotic-like cancer cells and inhibiting the growth of tumor cells by co-culture experiments...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28042867/preparation-phytochemical-investigation-and-safety-evaluation-of-chlorogenic-acid-products-from-eupatorium-adenophorum
#14
Boyan Liu, Lili Cao, Lijun Zhang, Xiaofan Yuan, Bing Zhao
Eupatorium adenophorum is widely distributed throughout the world's tropical and temperate regions. It has become a harmful weed of crops and natural environments. Its leaves contain bioactive compounds such as chlorogenic acid and may be used as feed additives. In this study, chlorogenic acid was extracted and separated from leaves of E. adenophorum. Three chlorogenic acid products were prepared with different purities of 6.11%, 22.17%, and 96.03%. Phytochemical analysis demonstrated that the main toxins of sesquiterpenes were almost completely removed in sample preparation procedure...
December 31, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28040564/role-of-potassium-channels-in-chlorogenic-acid-induced-apoptotic-volume-decrease-and-cell-cycle-arrest-in-candida-albicans
#15
JiEun Yun, Dong Gun Lee
BACKGROUND: Chlorogenic acid (CRA) is an abundant phenolic compound in the human diet. CRA has a potent antifungal effect, inducing cell death in Candida albicans. However, there are no further studies to investigate the antifungal mechanism of CRA, associated with ion channels. METHODS: To evaluate the inhibitory effects on CRA-induced cell death, C. albicans cells were pretreated with potassium and chloride channel blockers, separately. Flow cytometry was carried out to detect several hallmarks of apoptosis, such as cell cycle arrest, caspase activation, and DNA fragmentation, after staining of the cells with SYTOX green, FITC-VAD-FMK, and TUNEL...
December 28, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28028753/chlorogenic-acid-attenuates-lipopolysaccharide-induced-acute-kidney-injury-by-inhibiting-tlr4-nf-%C3%AE%C2%BAb-signal-pathway
#16
Han-Yang Ye, Jian Jin, Ling-Wei Jin, Yan Chen, Zhi-Hong Zhou, Zhan-Yuan Li
Chlorogenic acid (CGA), a polyphenolic compound, exists widely in medicinal herbs, which has been shown a strong antioxidant and anti-inflammatory effect. This study investigated the protective effects and mechanism of CGA on lipopolysaccharide (LPS)-induced acute kidney injury (AKI). Treatment of CGA successfully ameliorates LPS-induced renal function and pathological damage. Moreover, CGA dose-dependently suppressed LPS-induced blood urea nitrogen (BUN), creatinine levels, and inflammatory cytokines TNF-α, IL-6, and IL-1β in serum and tissue...
December 27, 2016: Inflammation
https://www.readbyqxmd.com/read/28012919/ilex-paraguariensis-and-its-main-component-chlorogenic-acid-inhibit-fructose-formation-of-advanced-glycation-endproducts-with-amino-acids-at-conditions-compatible-with-those-in-the-digestive-system
#17
Yasmin Bains, Alejandro Gugliucci
We have previously shown that Ilex paraguariensis extracts have potent antiglycation actions. Associations of excess free fructose consumption with inflammatory diseases have been proposed to be mediated through in situ enteral formation of fructose AGEs, which, after being absorbed may contribute to inflammatory diseases via engagement of RAGE. In this proof of principle investigation we show fluorescent AGE formation between amino acids (Arg, Lys, Gly at 10-50mM) and fructose (10-50mM) under time, temperature, pH and concentrations compatible with the digestive system lumen and its inhibition by Ilex paraguariensis extracts...
December 22, 2016: Fitoterapia
https://www.readbyqxmd.com/read/28012692/mediation-of-coffee-induced-improvements-in-human-vascular-function-by-chlorogenic-acids-and-its-metabolites-two-randomized-controlled-crossover-intervention-trials
#18
Charlotte E Mills, Andreas Flury, Cynthia Marmet, Laura Poquet, Stefano F Rimoldi, Claudio Sartori, Emrush Rexhaj, Roman Brenner, Yves Allemann, Diane Zimmermann, Glenn R Gibson, Don S Mottram, Maria-Jose Oruna-Concha, Lucas Actis-Goretta, Jeremy P E Spencer
BACKGROUND & AIMS: Polyphenol intake has been linked to improvements in human vascular function, although data on hydroxycinnamates, such as chlorogenic acid (CGA) have not yet been studied. We aimed to investigate the impact of coffee intake rich in chlorogenic acid on human vascular function and whether CGAs are involved in potential effects. METHODS: Two acute randomized, controlled, cross-over human intervention trials were conducted. The impact of coffee intake, matched for caffeine but differing in CGA content (89, and 310 mg) on flow-mediated dilatation (FMD) was assessed in 15 healthy male subjects...
November 30, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28012309/development-of-new-efficient-method-for-isolation-of-phenolics-from-sea-algae-prior-to-their-rapid-resolution-liquid-chromatographic-tandem-mass-spectrometric-determination
#19
Bořivoj Klejdus, Merichel Plaza, Marie Šnóblová, Lea Lojková
The extraction of phenolic compounds from 4 different sea algae samples, three brown algae (Cystoseira abies-marina, C. abies-marina grinded under cryogenic conditions with liquid nitrogen, Undaria pinnatifida and Sargassum muticum) and one red algae (Chondrus crispus) via solid phase extraction using micro-elution solid-phase extraction (μ-SPE) plate method was studied. Prior to μ-SPE, 50mg of algae with 80% methanol mixture was extracted in hyphenated series by various extraction techniques, such as pressurized liquid extraction and Ika Ultra-Turrax(®) Tube Drive, in combination with ultrasound assisted extraction...
December 14, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28012278/the-physiological-effects-of-dandelion-taraxacum-officinale-in-type-2-diabetes
#20
Fonyuy E Wirngo, Max N Lambert, Per B Jeppesen
The tremendous rise in the economic burden of type 2 diabetes (T2D) has prompted a search for alternative and less expensive medicines. Dandelion offers a compelling profile of bioactive components with potential anti-diabetic properties. The Taraxacum genus from the Asteraceae family is found in the temperate zone of the Northern hemisphere. It is available in several areas around the world. In many countries, it is used as food and in some countries as therapeutics for the control and treatment of T2D. The anti-diabetic properties of dandelion are attributed to bioactive chemical components; these include chicoric acid, taraxasterol (TS), chlorogenic acid, and sesquiterpene lactones...
July 2016: Review of Diabetic Studies: RDS
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