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Curcumin

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https://www.readbyqxmd.com/read/27908756/a-novel-curcumin-derivative-which-inhibits-p-glycoprotein-arrests-cell-cycle-and-induces-apoptosis-in-multidrug-resistance-cells
#1
Vanessa Lopes-Rodrigues, Ana Oliveira, Marta Correia-da-Silva, Madalena Pinto, Raquel T Lima, Emília Sousa, M Helena Vasconcelos
Cancer multidrug resistance (MDR) is a major limitation to the success of cancer treatment and is highly associated with the overexpression of drug efflux pumps such as P-glycoprotein (P-gp). In order to achieve more effective chemotherapeutic treatments, it is important to develop P-gp inhibitors to block/decrease its activity. Curcumin (1) is a secondary metabolite isolated from the turmeric of Curcuma longa L.. Diverse biological activities have been identified for this compound, particularly, MDR modulation in various cancer cell models...
November 19, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27908582/effect-of-curcumin-on-kidney-histopathological-changes-lipid-peroxidation-and-total-antioxidant-capacity-of-serum-in-sodium-arsenite-treated-mice
#2
Hamid Reza Momeni, Najmeh Eskandari
Sodium arsenite is an environmental pollutant with the ability to generate free radicals and curcumin acts as a potent antioxidant. This study investigates the effect of curcumin on kidney histopathology, lipid peroxidation and antioxidant capacity of serum in the mice treated with sodium arsenite. Adult male mice were divided into four groups: control, sodium arsenite, curcumin and curcumin+sodium arsenite. The treatments were delivered for 5 weeks. After the treatment period, blood samples were collected and the concentrations of malondialdehyde (MDA) and total antioxidant capacity of serum were determined...
November 28, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27904665/curcumin-protects-endothelial-cells-against-homocysteine-induced-injury-through-inhibiting-inflammation
#3
Jian Li, Ming Luo, Nanzi Xie, Jianxin Wang, Li Chen
OBJECTIVE: This study aimed to investigate the protective effects of curcumin on the homocysteine (HCY) induced injury to the endothelial cells. METHODS: Endothelial cells were treated with HCY at different concentrations, and MTT assay was employed to determine an optimal concentration of HCY. Cells were divided into 3 groups: normal control group, HCY group and HCY + curcumin group. In curcumin group, cells were pretreated with 2.5 mmol/L HCY for 2 h and then incubated with curcumin at different concentrations...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27903456/millifluidic-synthesis-of-amorphous-drug-polysaccharide-nanoparticle-complex-with-tunable-size-intended-for-supersaturating-drug-delivery-applications
#4
The-Thien Tran, Minh-Hiep Nguyen, Yong Zen Tan, Jia Wei Chew, Saif A Khan, Kunn Hadinoto
The conventional bulk mixing method to prepare amorphous drug-polysaccharide nanoparticle complex (or drug nanoplex in short) has a major drawback in the lack of size control for the nanoplex produced, hence limiting its potential applications as a supersaturating drug delivery system for bioavailability enhancement of poorly soluble drugs. For this reason, we developed a continuous millifluidic synthesis platform of the drug nanoplex exhibiting high size tunability using curcumin (CUR) and chitosan (CHI) as the models for drug and polysaccharides, respectively...
November 27, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27902937/study-on-the-interaction-between-curcumin-and-copc-by-spectroscopic-and-docking-methods
#5
Zhen Song, Wen Yuan, Ruitao Zhu, Song Wang, Caifeng Zhang, Binsheng Yang
Curcumin is a widely studied polyphenolic compound which has a variety of biological activity as anti-inflammatory and antitumor drugs. Recent research reported that copper chaperone binding with small molecular may relate to the treatment of cancer. In this work, the interaction between curcumin and CopC has been investigated in detail by means of UV-vis absorption, FTIR, CD, fluorescence spectroscopic and molecular docking methods The results showed that the CopC conformation was altered by curcumin with reduction of β-sheet and increase of random coil...
November 27, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27901497/curcumin-carrying-nanoparticles-prevent-ischemia-reperfusion-injury-in-human-renal-cells
#6
Yong Xu, Ning Hu, Wei Jiang, Hong-Fang Yuan, Dong-Hui Zheng
Renal ischemia-reperfusion injury (IRI) is a major complication in clinical practice. However, despite its frequency, effective preventive/treatment strategies for this condition are scarce. Curcumin possesses antioxidant properties and is a promising potential protective agent against renal IRI, but its poor water solubility restricts its application. In this study, we constructed curcumin-carrying distearoylphosphatidylethanolamine-polyethylene glycol nanoparticles (Cur-NPs), and their effect on HK-2 cells exposed to IRI was examined in vitro...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27901349/curcumin-improves-the-metabolic-syndrome-in-high-fructose-diet-fed-rats-role-of-tnf-%C3%AE-nf-%C3%AE%C2%BAb-and-oxidative-stress
#7
Mohamed Elsayed Kelany, Tahir M Hakami, Adel H Omar
This study aimed to investigate effects of curcumin on high fructose diet (HFD)-induced metabolic syndrome (MetS) in rats and the possible mechanisms involved. MetS was induced in male albino rats (n = 20), over 8 weeks, by 65% HFD. For 8-week experiment period, rats were assigned to 2 equal groups: curcumin-treated rats received curcumin (200 mg/kg, p.o, once daily) along with HFD, and untreated rats were fed with HFD only. We evaluated body mass (BM), systolic blood pressure (SBP), homeostasis model assessment of insulin resistance (HOMA-IR), and serum levels of glucose, insulin, leptin, total cholesterol (TC), triglycerides (TGs), uric acid, malondialdehyde (MDA; lipid peroxidation product), and tumor necrosis factor-α (TNF-α; inflammatory cytokine), and serum catalase (endogenous antioxidant) activity and immunohistochemical expression of nuclear factor κB (NF-κB; inflammation-related transcription factor) in hepatocytes...
August 17, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27901193/physicochemical-photophysical-characterization-and-angiogenic-properties-of-curcuma-longa-essential-oil
#8
Lilhian A Araújo, Rafael G M Araújo, Flávia O Gomes, Susy R Lemes, Luciane M Almeida, Lauro J Q Maia, Pablo J Gonçalves, Fátima Mrué, Nelson J Silva-Junior, Paulo R DE Melo-Reis
This study analyzed the physicochemical and photophysical properties of essential oil of Curcuma longa and its angiogenic potential. The results showed that curcumin is the main fluorescent component present in the oil, although the amount is relatively small. The experimental chorioallantoic membrane model was used to evaluate angiogenic activity, showing a significant increase in the vascular network of Curcuma longa and positive control groups when compared to the neutral and inhibitor controls (P <0...
2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27900602/transepithelial-transport-of-curcumin-in-caco-2-cells-is-significantly-enhanced-by-micellar-solubilisation
#9
Jan Frank, Christina Schiborr, Alexa Kocher, Jürgen Meins, Dariush Behnam, Manfred Schubert-Zsilavecz, Mona Abdel-Tawab
Curcumin, the active constituent of Curcuma longa L. (family Zingiberaceae), has gained increasing interest because of its anti-cancer, anti-inflammatory, anti-diabetic, and anti-rheumatic properties associated with good tolerability and safety up to very high doses of 12 g. Nanoscaled micellar formulations on the base of Tween 80 represent a promising strategy to overcome its low oral bioavailability. We therefore aimed to investigate the uptake and transepithelial transport of native curcumin (CUR) vs. a nanoscaled micellar formulation (Sol-CUR) in a Caco-2 cell model...
November 29, 2016: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/27897416/curcumin-an-effective-adjunct-in-patients-with-statin-associated-muscle-symptoms
#10
REVIEW
Amirhossein Sahebkar, Nikou Saboni, Matteo Pirro, Maciej Banach
In spite of the unequivocal efficacy of statins in reducing primary and secondary cardiovascular events, the use of these drugs in a considerable number of patients is limited because of statin intolerance, mainly statin-associated muscle symptoms (SAMS). SAMS encompass a broad spectrum of clinical presentations, including mild muscular aching and other types of myalgias, myopathy with the significant elevation of creatine kinase, and the rare but life-threatening rhabdomyolysis. Among several pathophysiologic mechanisms of SAMS, mitochondrial dysfunction is thought to be one of the main one...
September 22, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27897077/understanding-the-conformational-flexibility-and-electrostatic-properties-of-curcumin-in-the-active-site-of-rhache-via-molecular-docking-molecular-dynamics-and-charge-density-analysis
#11
Saravanan Kandasamy, Kalaiarasi Chinnasamy, Kumaradhas Poomani
Acetylcholinesterase (AChE) is an important enzyme responsible for Alzheimer disease (AD), as per report, keto-enol form of curcumin inhibits this enzyme. The present study aims to understand the binding mechanism of keto-enol curcumin with the recombinant human Acetylcholinesterase (rhAChE) from its conformational flexibility, intermolecular interactions, charge density distribution and the electrostatic properties at the active site of rhAChE. To accomplish this, a molecular docking analysis of curcumin with the rhAChE was performed, which gives the structure and conformation of curcumin in the active site of rhAChE...
November 29, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27896883/curcumin-as-a-multifaceted-compound-against-human-papilloma-virus-infection-and-cervical-cancers-a-review-of-chemistry-cellular-molecular-and-preclinical-features
#12
REVIEW
Manouchehr Teymouri, Matteo Pirro, Thomas P Johnston, Amirhosein Sahebkar
Curcumin, the bioactive polyphenolic ingredient of turmeric, has been extensively studied for its effects on human papilloma virus (HPV) infection as well as primary and malignant squamous cervical cancers. HPV infections, especially those related to HPV 16 and 18 types, have been established as the leading cause of cervical cancer; however, there are also additional contributory factors involved in the etiopathogenesis of cervical cancers. Curcumin has emerged as having promising chemopreventive and anticancer effects against both HPV-related and nonrelated cervical cancers...
November 29, 2016: BioFactors
https://www.readbyqxmd.com/read/27895800/a-novel-curcumin-analogue-is-a-potent-chemotherapy-candidate-for-human-hepatocellular-carcinoma
#13
Ji-An Zhao, Mei-Xiang Sang, Cui-Zhi Geng, Shi-Jie Wang, Bao-En Shan
Curcumin (CUR) has been demonstrated to protect against carcinogenesis and to prevent tumor development in cancer; however, the clinical application of CUR is limited by its instability and poor metabolic properties. The present study offers an strategy for a novel CUR analogue, (1E,4E)-1,5-bis(2-bromophenyl)penta-1,4-dien-3-one (GL63), to be used as a potential therapeutic agent for hepatocellular carcinoma (HCC) in vitro and in vivo. The current study demonstrated that GL63 exhibited more potent inhibition of proliferation of HCC cells than CUR...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895783/curcumin-suppresses-colon-cancer-cell-invasion-via-ampk-induced-inhibition-of-nf-%C3%AE%C2%BAb-upa-activator-and-mmp9
#14
Weihua Tong, Quan Wang, Donghui Sun, Jian Suo
Curcumin, an active nontoxic ingredient of turmeric, possesses potent anti-inflammatory, antioxidant and anti-cancer properties; however, the molecular mechanisms of curcumin are not fully understood. The transcription factor nuclear factor-κB (NF-κB) is key in cellular processes, and the expression/activation of urokinase-type plasminogen activator (uPA) and matrix metalloproteinase-9 (MMP9) are crucial for cell invasion. The present study investigated the hypothesis that curcumin inhibits colon cancer cell invasion by modulating NF-κB-mediated expression and activation of uPA and MMP9...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895780/curcumin-potentiates-the-effect-of-chemotherapy-against-acute-lymphoblastic-leukemia-cells-via-downregulation-of-nf-%C3%AE%C2%BAb
#15
Helia Judith Pimentel-Gutiérrez, Lucina Bobadilla-Morales, César Cenobio Barba-Barba, Citlalli Ortega-De-La-Torre, Fernando Antonio Sánchez-Zubieta, Jorge Román Corona-Rivera, Betsy Annel González-Quezada, Juan S Armendáriz-Borunda, Rocío Silva-Cruz, Alfredo Corona-Rivera
Acute lymphoblastic leukemia (ALL) accounts for 30% of all pediatric cancers. Currently available treatments exhibit toxicity and certain patients may develop resistance. Thus, less toxic and chemoresistance-reversal agents are required. In the present study, the potential effect of curcumin, a component of Curcuma longa, as a pharmacological co-adjuvant of several chemotherapeutic agents against ALL, including prednisone, 6-mercaptopurine, dexamethasone, cyclophosphamide, l-asparaginase, vincristine, daunorubicin, doxorubicin, methotrexate and cytarabine, was investigated in the REH ALL cell line cultures treated in combination with chemotherapeutic agents and curcumin...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895754/evaluation-of-the-efficacy-of-paclitaxel-with-curcumin-combination-in-ovarian-cancer-cells
#16
Zeng Liu, Yuan-Yuan Zhu, Zhao-Yuan Li, Si-Qing Ning
The aim of the present study was to evaluate the efficacy of paclitaxel combined with curcumin (CUR) against drug resistance in ovarian cancer cells. PLGA-phospholipid-PEG nanoparticles were prepared using the nano precipitation method. The size and morphology of the nanoparticles were determined using a transmission electron microscope and particle size analyzer. The encapsulation efficiency of nanoparticles was determined using the ultrafiltration centrifugation method. The dialysis method was used to study the release of PLGA-phospholipid-PEG nanoparticles...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895517/influence-of-curcumin-on-the-pharmacodynamics-and-pharmacokinetics-of-gliclazide-in-animal-models
#17
Leela Krishna Vatsavai, Eswar Kumar Kilari
PURPOSE: Patients suffering from obesity-related diseases use multiple prescription drugs to control their condition, and it is therefore essential to determine the safety and efficacy of any combination. Gliclazide is one of the most commonly used drug of choice for treatment of type 2 diabetes, and curcumin is a widely used herbal supplement to counter obesity condition. The objective of this study was to investigate the effect of oral administration of curcumin on pharmacodynamics and pharmacokinetics of gliclazide in rats and rabbits to further evaluate the safety and effectiveness of this combination...
2016: Journal of Experimental Pharmacology
https://www.readbyqxmd.com/read/27894665/modulatory-effects-of-curcumin-on-apoptosis-and-cytotoxicity-related-molecules-in-htlv-1-associated-myelopathy-tropical-spastic-paraparesis-ham-tsp-patients
#18
Asadollah Mohammadi, Bahare Fazeli, Marzieh Taheri, Amirhossein Sahebkar, Zohreh Poursina, Vida Vakili, Shadi Zamanian Yazdi, Zahra Keramati, Reza Boostani, Ian Hampson, Houshang Rafatpanah
HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic viral neuroinflammatory disease. Apoptosis might play an important role in the control of HTLV-1 viral infection. This study aims to determine if apoptosis process being able to occasionally distinguish between asymptomatic carriers (ACs) and HAM/TSP patients. Therefore, it could be used to predict the outcome of HTLV-1 infection. The mRNA expression of perforin, granzyme A, granzyme B, granulysin, Fas-Ligand (FasL), TNF-related apoptosis-inducing ligand (TRAIL), total Fas and membrane Fas in 21 HAM/TSP patients, 21 ACs and 21 healthy controls (HCs) was quantified...
November 25, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27894336/curcumin-and-long-chain-omega-3-polyunsaturated-fatty-acids-for-prevention-of-type-2-diabetes-cop-d-study-protocol-for-a-randomised-controlled-trial
#19
Rohith N Thota, Shamasunder H Acharya, Kylie A Abbott, Manohar L Garg
BACKGROUND: Lifestyle interventions, including increase in physical activity and dietary counselling, have shown the ability to prevent type 2 diabetes (T2D) in high-risk state individuals, but the prevalence is still skyrocketing in Australia, in line with global prevalence. Currently, no medicines are approved by the Therapeutic Goods Administration in Australia for the management of prediabetes. Therefore, there is a need of developing a safer, biologically efficacious and cost-effective alternative for delaying the transition of individual health state from prediabetes into T2D...
November 29, 2016: Trials
https://www.readbyqxmd.com/read/27894084/curcumin-increases-exosomal-tcf21-thus-suppressing-exosome-induced-lung-cancer
#20
Hao Wu, Jingcheng Zhou, Chao Zeng, Da Wu, Zhimin Mu, Baokun Chen, Yuancai Xie, Yiwang Ye, Jixian Liu
Curcumin is a novel drug for lung cancer treatment. However, the mechanism underlying the anti-tumor effect of curcumin remains elusive. Previous evidences indicated that, the methylating transferase DNMT1 is downregulated by curcumin, and the transcription factor 21 (TCF21) is suppressed by DNMT1. We hereby attempt to elucidate the correlation between curcumin treatment and TCF21 expression. Exosomes derived from curcumin-pretreated H1299 cells were used to treat BEAS-2B cells, which induced proliferation, colony formation and migration of BEAS-2B cells...
November 22, 2016: Oncotarget
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