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https://www.readbyqxmd.com/read/29353208/natural-products-berberine-and-curcumin-exhibited-better-ameliorative-effects-on-rats-with-non-alcohol-fatty-liver-disease-than-lovastatin
#1
Wu-Wen Feng, Shuang-Yu Kuang, Can Tu, Zhi-Jie Ma, Jing-Yao Pang, Yan-Hui Wang, Qing-Ce Zang, Ta-Si Liu, Yan-Ling Zhao, Xiao-He Xiao, Jia-Bo Wang
Studies have shown that satins and herbal products have potential to treat non-alcohol fatty liver disease (NAFLD) in clinic. However, no study has compared their effects, and their mechanisms remain unresolved. Here, we choose lovastatin and two herbal products including berberine and curcumin to compare their effects in treating NAFLD. NAFLD model was established by high fat food, and rats were administrated with lovastatin, berberine, curcumin, berberine + curcumin at the dosage of 100, 100, 100, 50 + 50 mg/kg bw, respectively...
January 17, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29353081/hydrogels-based-on-poly-methyl-vinyl-ether-co-maleic-acid-and-tween-85-for-sustained-delivery-of-hydrophobic-drugs
#2
Eneko Larrañeta, Laura Barturen, Michael Ervine, Ryan F Donnelly
Hydrogels based on poly(methyl vinyl ether-co-maleic acid) and Tween 85 were prepared for hydrophobic drug delivery. The hydrogels were synthesized following a simple procedure carried out in solid state. The process did not require the use of any solvent and, as it is based on an esterification reaction, no toxic by-products were obtained. The resulting hydrogels contained Tween 85 inside the structure and due to the amphiphilic nature of this compound, hydrophobic domains within the hydrogel structure were formed...
January 15, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29353037/curcumin-protects-cortical-neurons-against-oxygen-and-glucose-deprivation-reoxygenation-injury-through-flotillin-1-and-extracellular-signal-regulated-kinase1-2-pathway
#3
Zhengyu Lu, Yanping Liu, Yang Shi, Xinjie Shi, Xin Wang, Chuan Xu, Hong Zhao, Qiang Dong
In this study, we provided evidence that curcumin could be a promising therapeutic agent for ischemic stroke by activating neuroprotective signaling pathways. Post oxygen and glucose deprivation/reoxygenation (OGD/R), primary mouse cortical neurons treated with curcumin exhibited a significant decrease in cell death, LDH release and enzyme caspase-3 activity under OGD/R circumstances, which were abolished by flotillin-1 downregulation or extracellular signal-regulated kinase (ERK) inhibitor. Moreover, flotillin-1 knockdown led to suppression of curcumin-mediated ERK phosphorylation under OGD/R condition...
January 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29352871/a-novel-approach-for-fabricating-nanocomposite-materials-by-embedding-stabilized-core-shell-micelles-into-polysaccharide-cryogel-matrix
#4
Viktoria Pencheva, Elena Margaritova, Maria Borinarova, Marta Slavkova, Denitsa Momekova, Petar D Petrov
We report a novel approach for fabricating nanocomposite polysaccharide-based carriers for sustained delivery of poorly-water-soluble drugs by embedding stabilized core-shell micelles (SPM) possessing hydrophobic cores into super-macroporous hydroxypropyl cellulose (HPC) cryogels. Firstly, nano-sized SPM were synthesized by loading and photochemical crosslinking of pentaerythritoltetraacrylate (PETA) in poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO19PPO29PEO19) core-shell micelles...
March 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29351226/curcumin-attenuates-on-carbon-tetrachloride-induced-acute-liver-injury-in-mice-via-modulation-of-the-nrf2-ho-1-and-tgf-%C3%AE-1-smad3-pathway
#5
Xinyan Peng, Chongshan Dai, Quanwen Liu, Junke Li, Jingru Qiu
This study aimed to investigate the protective effect of curcumin against carbon tetrachloride (CCl₄)-induced acute liver injury in a mouse model, and to explain the underlying mechanism. Curcumin at doses of 50, 100 and 200 mg/kg/day were administered orally once daily for seven days prior to CCl₄ exposure. At 24 h, curcumin-attenuated CCl₄ induced elevated serum transaminase activities and histopathological damage in the mouse's liver. Curcumin pre-treatment at 50, 100 and 200 mg/kg significantly ameliorated CCl₄-induced oxidative stress, characterized by decreased malondialdehyde (MDA) formations, and increased superoxide dismutase (SOD), catalase (CAT) activities and glutathione (GSH) content, followed by a decrease in caspase-9 and -3 activities...
January 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29351058/development-and-characterization-of-an-in-vitro-model-for-radiation-induced-fibrosis
#6
Dhruv Kumar, Sreeya Yalamanchali, Jacob New, Sean Parsel, Natalie New, Andrew Holcomb, Sumedha Gunewardena, Ossama Tawfik, Chris Lominska, Bruce F Kimler, Shrikant Anant, Kiran Kakarala, Terance Tsue, Yelizaveta Shnayder, Kevin Sykes, Subhash Padhye, Sufi Mary Thomas
Radiation-induced fibrosis (RIF) is a major side effect of radiotherapy in cancer patients with no effective therapeutic options. RIF involves excess deposition and aberrant remodeling of the extracellular matrix (ECM) leading to stiffness in tissues and organ failure. Development of preclinical models of RIF is crucial to elucidate the molecular mechanisms regulating fibrosis and to develop therapeutic approaches. In addition to radiation, the main molecular perpetrators of fibrotic reactions are cytokines, including transforming growth factor-β (TGF-β)...
January 19, 2018: Radiation Research
https://www.readbyqxmd.com/read/29350064/comparison-of-hyaluronic-acid-based-micelles-and-polyethylene-glycol-based-micelles-on-reversal-of-multidrug-resistance-and-enhanced-anticancer-efficacy-in-vitro-and-in-vivo
#7
Jinling Wang, Ying Li, Lifang Wang, Xiaohui Wang, Pengfei Tu
Polyethylene glycol (PEG)-based block copolymer micelles and hyaluronic acid (HA)-based grafted copolymer micelles have been widely investigated in chemotherapy. In this study, to evaluate the differences among HA-based grafted polymer micelles, PEG-based block polymer micelles and the mixed of these two micelles in enhancing antitumor effects and overcoming MDR, two amphiphilic vitamin E succinate (VES) derivatives, HA VES (HA-g-VES) and PEG 2000 VES (TPGS2k), were applied as nanocarriers to prepare HA-VES micelles (HA-PMs), TPGS2k micelles (TPGS2k-PMs) and the mixed micelles (HA/TPGS2k-PMs) for the co-delivery of doxorubicin (DOX) and curcumin (Cur)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29348389/efficacy-of-curcumin-as-adjuvant-therapy-to-induce-or-maintain-remission-in-ulcerative-colitis-patients-an-evidence-based-clinical-review
#8
Marcellus Simadibrata, Christopher Christian Halimkesuma, Benedicta Mutiara Suwita
BACKGROUND: treatment guidelines for ulcerative colitis (UC) not yet established. Currently, mesalazine, corticosteroids, and immunomodulators are treatment options for UC. However, they are known to have unpleaseant side effects such as nausea, vomiting, headaches, hepatitis, and male infertility. Curcumin is found in Turmeric plants (Curcuma longa L.), which possesses both anti-inflammatory and antioxidant properties. This study aimed to determine whether curcumin as adjuvant therapy can induce or maintain remission in UC patients...
October 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/29348099/spray-dried-curcumin-nanoemulsion-a-new-road-to-improvement-of-oral-bioavailability-of-curcumin
#9
Liandong Hu, Qiaofeng Hu, Chenchen Yang
In this study a new soluble solid curcumin nanoemulsion powder was prepared using spray-drying technology to improve the solubility and bioavailability of curcumin. The liquid nanoemulsion consisted of curcumin, Capryol 90, Transcutol P, and Cremophor RH40. The solid nanoemulsion was prepared by spray-drying the liquid nanoemulsion in laboratory spray dryer, using lactose as solid carrier. The in vitro release from powder formulation was 97.6% within 15 min while the release from the curcumin crystalline was about 10%...
January 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29346317/liposomal-tricurin-a-synergistic-combination-of-curcumin-epicatechin-gallate-and-resveratrol-repolarizes-tumor-associated-microglia-macrophages-and-eliminates-glioblastoma-gbm-and-gbm-stem-cells
#10
Sumit Mukherjee, Juliet N E Baidoo, Samay Sampat, Andrew Mancuso, Lovena David, Leah S Cohen, Shuiqin Zhou, Probal Banerjee
Glioblastoma (GBM) is a deadly brain tumor with a current mean survival of 12-15 months. Despite being a potent anti-cancer agent, the turmeric ingredient curcumin (C) has limited anti-tumor efficacy in vivo due to its low bioavailability. We have reported earlier a strategy involving the use two other polyphenols, epicatechin gallate (E) from green tea and resveratrol (R) from red grapes at a unique, synergistic molar ratio with C (C:E:R: 4:1:12.5, termed TriCurin) to achieve superior potency against HPV+ tumors than C alone at C:E:R (μM): 32:8:100 (termed 32 μM+ TriCurin)...
January 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29345599/crystalline-ethylene-oxide-and-propylene-oxide-triblock-copolymer-solid-dispersion-enhance-solubility-stability-and-promoting-time-controllable-release-of-curcumin
#11
Thais Francine Ribeiro Alves, Franciely Lopes, Marcia Rebelo, Juliana Souza, Katiusca Pontes, Carolina Santos, Patricia Severino, Jose Junior, Daniel Komatsu, Marco Vinicius Chaud
AIMS AND BACKGROUND: The design and development of an effective medicine are however often faced with a number of challenges. One of them is the close relationship of drug's bioavailability with solubility, dissolution rate and permeability. The use of curcumin's (CUR) therapeutic potential is limited by its poor water solubility and low chemical stability. The purpose was to evaluate the effect of polymer and solid dispersion (SD) preparation techniques to enhance the aqueous solubility, dissolution rate and stability of the CUR...
January 17, 2018: Recent Patents on Drug Delivery & Formulation
https://www.readbyqxmd.com/read/29345167/dietary-supplements-for-health-adaptation-and-recovery-in-athletes
#12
Eric S Rawson, Mary P Miles, D Enette Larson-Meyer
Some dietary supplements are recommended to athletes based on data that supports improved exercise performance. Other dietary supplements are not ergogenic per se, but may improve health, adaptation to exercise, or recovery from injury, and so could help athletes to train and/or compete more effectively. In this review, we describe several dietary supplements that may improve health, exercise adaptation, or recovery. Creatine monohydrate may improve: recovery from and adaptation to intense training, recovery from periods of injury with extreme inactivity, cognitive processing, and reduce severity of or enhance recovery from mild traumatic brain injury (mTBI)...
January 18, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29341902/curcumin-potentiates-the-function-of-human-%C3%AE-7-nicotinic-acetylcholine-receptors-expressed-in-sh-ep1-cells
#13
Eslam El Nebrisi, Lina T Al Kury, Keun-Hang Susan Yang, Petrilla Jayaprakash, Frank C Howarth, Nadine Kabbani, Murat Oz
Effects of curcumin, a biologically active ingredient of turmeric, were tested on the Ca2+ transients induced by the activation of α7 subunit of the human nicotinic acetylcholine (α7 nACh) receptor expressed in SH-EP1 cells. Curcumin caused a significant potentiation of choline (1 mM)-induced Ca2+ transients with an EC50 value of 133 nM. The potentiating effect of curcumin was not observed in Ca2+ transients induced by high K+ (60 mM) containing solutions or activation of α4β2 nACh receptors and the extent of curcumin potentiation was not altered in the presence of Ca2+ channel antagonists nifedipine (1 μM), verapamil (1 μM), ω-conotoxin (1 μM), and bepridil (10 μM)...
January 13, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29340361/a-curcumin-loaded-polymeric-micelle-as-a-carrier-of-a-microrna-21-antisense-oligonucleotide-for-enhanced-anti-tumor-effects-in-a-glioblastoma-animal-model
#14
Xiaonan Tan, Gyeungyun Kim, Dahee Lee, Jungju Oh, Minkyung Kim, Chunxian Piao, Jaewon Lee, Min Sang Lee, Ji Hoon Jeong, Minhyung Lee
A glioblastoma is a common primary brain tumor that expresses microRNA-21 (miR-21), which inhibits the expression of pro-apoptotic genes such as phosphatase and tensin homologue (PTEN) and programmed cell death 4 (PDCD4). Therefore, an antisense-oligonucleotide against miR-21 (miR21ASO) could have therapeutic effects for glioblastomas. In this study, curcumin was loaded into deoxycholic acid-conjugated polyethylenimine (DP) micelles. The curcumin-loaded DP micelle (DP-Cur) was evaluated as a carrier for the combined delivery of curcumin and miR21ASO...
January 17, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29340110/curcumin-attenuates-myocardial-ischemia-reperfusion-injury
#15
Kun Liu, Honglin Chen, Qing-Sheng You, Qing Ye, Fei Wang, Shuo Wang, Shuang-Long Zhang, Kang-Jun Yu, Qi Lu
Background: Cardiovascular diseases (CVDs) are at a badly high-risk of morbidity and mortality in the world. Methods: Our study was attempted to investigate the cardioprotective role of curcumin. Hearts injury was assessed in isolated hearts and the rats of coronary artery ligated. Results and Conclusions: The inhibition of pro-inflammatory cytokines was observed by curcumin in coronary artery ligated rats. ST segment was also reduced by curcumin...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339457/curcumin-acts-as-a-positive-allosteric-modulator-of-%C3%AE-7-nicotinic-acetylcholine-receptors-and-reverses-nociception-in-mouse-models-of-inflammatory-pain
#16
Eslam Gaber El Nebrisi, Deniz Bagdas, Wisam Toma, Halima Al Samri, Anna Brodzik, Yasmin Alkhlaif, Keun-Hang Susan Yang, Frank C Howarth, Imad M Damaj, Murat Oz
Effects of curcumin, a major ingredient of turmeric, were tested on the function of α7 subunit of the human nicotinic acetylcholine (α7 nACh) receptor expressed in Xenopus oocytes and on nociception in mouse models of tonic and visceral pain. Curcumin caused a significant potentiation of ACh (100 μM)-induced currents with an EC50 value of 0.2 µM. The effect of curcumin was not dependent on the activation of G-proteins and protein kinases and did not involve Ca2+-dependent Cl- channels expressed endogenously in oocytes...
January 16, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29339038/curcumin-inhibits-tgf-%C3%AE-1-induced-connective-tissue-growth-factor-expression-through-the-interruption-of-smad2-signaling-in-human-gingival-fibroblasts
#17
Jung-Tsu Chen, Chen-Ying Wang, Min-Huey Chen
BACKGROUND/PURPOSE: Many fibrotic processes are associated with an increased level of transforming growth factor-β1 (TGF-β1). TGF-β1 can increase synthesis of matrix proteins and enhance secretion of protease inhibitors, resulting in matrix accumulation. Connective tissue growth factor (CTGF) is a downstream profibrotic effector of TGF-β1 and is associated with the fibrosis in several human organs. Curcumin has been applied to reduce matrix accumulation in fibrotic diseases. This study was aimed to evaluate whether curcumin could suppress TGF-β1-induced CTGF expression and its related signaling pathway involving in this inhibitory action in primary human gingival fibroblasts...
January 13, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29338678/supplementation-with-curcuma-longa-reverses-neurotoxic-and-behavioral-damage-in-models-of-alzheimer-s-disease-a-systematic-review
#18
Ianara Mendonca da Costa, Marco Aurelio de Moura Freire, Jose Rodolfo Lopes de Paiva Cavalcanti, Dayane Pessoa de Araujo, Bianca Norrara, Isleania Maria Marques Moreira Rosa, Eduardo Pereira de Azevedo, Amalia Cinthia Meneses do Rego, Irami Araujo Filho, Fausto Pierdona Guzen
BACKGROUND: The formation of senile plaques and neurofibrillary tangles of the tau protein are the main pathological mechanism of Alzheimer's disease (AD). Current therapies for AD offer discrete benefits to the clinical symptoms and do not prevent the continuing degeneration of neuronal cells. Therefore, novel therapeutic strategies have long been investigated, where curcumin (Curcuma longa) has shown some properties that can prevent the deleterious processes involved in neurodegenerative diseases...
January 16, 2018: Current Neuropharmacology
https://www.readbyqxmd.com/read/29337925/plant-secondary-metabolites-as-anticancer-agents-successes-in-clinical-trials-and-therapeutic-application
#19
REVIEW
Ana M L Seca, Diana C G A Pinto
Cancer is a multistage process resulting in an uncontrolled and abrupt division of cells and is one of the leading causes of mortality. The cases reported and the predictions for the near future are unthinkable. Food and Drug Administration data showed that 40% of the approved molecules are natural compounds or inspired by them, from which, 74% are used in anticancer therapy. In fact, natural products are viewed as more biologically friendly, that is less toxic to normal cells. In this review, the most recent and successful cases of secondary metabolites, including alkaloid, diterpene, triterpene and polyphenolic type compounds, with great anticancer potential are discussed...
January 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29337098/synthesis-and-characterization-of-chitin-curcumin-blended-polyurethane-elastomers
#20
Kashif Mahmood, Khalid Mahmood Zia, Waseem Aftab, Mohammad Zuber, Shazia Tabasum, Aqdas Noreen, Fatima Zia
In this work, chitin-curcumin based polyurethane elastomers (PUEs) were prepared by step growth polymerization technique using hydroxy terminated polybutadiene (HTPB), hexamethylene diisocyanate (HDI), chitin and curcumin. The molecular characterization was done by using FTIR and SS 1HNMR techniques. The surface morphology and thermal stability was studied by scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA), respectively. Degree of absorption and swelling characters were also determined in water as well as in DMSO...
January 11, 2018: International Journal of Biological Macromolecules
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