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https://www.readbyqxmd.com/read/28214625/curcumin-functionalized-silk-biomaterials-for-anti-aging-utility
#1
Lei Yang, Zhaozhu Zheng, Cheng Qian, Jianbing Wu, Yawen Liu, Shaozhe Guo, Gang Li, Meng Liu, Xiaoqin Wang, David L Kaplan
Curcumin is a natural antioxidant that is isolated from turmeric (Curcuma longa) and exhibits strong free radical scavenging activity, thus functional for anti-aging. However, poor stability and low solubility of curcumin in aqueous conditions limit its biomedical applications. Previous studies have shown that the anti-oxidation activity of curcumin embedded in silk fibroin films could be well preserved, resulting in the promoted adipogenesis from human mesenchymal stem cells (hMSCs) cultured on the surface of the films...
February 2, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28210221/pharmacogenomic-characterization-and-isobologram-analysis-of-the-combination-of-ascorbic-acid-and-curcumin-two-main-metabolites-of-curcuma-longa-in-cancer-cells
#2
Edna Ooko, Onat Kadioglu, Henry J Greten, Thomas Efferth
Curcuma longa has long been used in China and India as anti-inflammatory agent to treat a wide variety of conditions and also as a spice for varied curry preparations. The chemoprofile of the Curcuma species exhibits the presence of varied phytochemicals with curcumin being present in all three species but AA only being shown in C. longa. This study explored the effect of a curcumin/AA combination on human cancer cell lines. The curcumin/AA combination was assessed by isobologram analysis using the Loewe additivity drug interaction model...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28208574/complexation-of-phytochemicals-with-cyclodextrin-derivatives-an-insight
#3
REVIEW
Vasanti Suvarna, Parul Gujar, Manikanta Murahari
Natural compounds have been attracting huge attention because of their broad therapeutic properties with specificity in their action in human health care as functional foods, pharmaceuticals and nutraceuticals. However poor bioavailability and reduced bioactivity attributed to poor solubility and instability is the major drawback hindering the incorporation of these therapeutically potential molecules in novel drug delivery systems. Based on the findings of reported research investigations; complexation of poorly water soluble phytochemicals with cyclodextrins has emerged to be a promising approach to improve their aqueous solubility, stability, rate of dissolution and bioavailability...
February 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28204880/analysis-of-different-innovative-formulations-of-curcumin-for-improved-relative-oral-bioavailability-in-human-subjects
#4
Martin Purpura, Ryan P Lowery, Jacob M Wilson, Haider Mannan, Gerald Münch, Valentina Razmovski-Naumovski
PURPOSE: The optimal health benefits of curcumin are limited by its low solubility in water and corresponding poor intestinal absorption. Cyclodextrins (CD) can form inclusion complexes on a molecular basis with lipophilic compounds, thereby improving aqueous solubility, dispersibility, and absorption. In this study, we investigated the bioavailability of a new γ-cyclodextrin curcumin formulation (CW8). This formulation was compared to a standardized unformulated curcumin extract (StdC) and two commercially available formulations with purported increased bioavailability: a curcumin phytosome formulation (CSL) and a formulation of curcumin with essential oils of turmeric extracted from the rhizome (CEO)...
February 16, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28204864/high-bioavailability-curcumin-an-anti-inflammatory-and-neurosupportive-bioactive-nutrient-for-neurodegenerative-diseases-characterized-by-chronic-neuroinflammation
#5
REVIEW
Faheem Ullah, Andy Liang, Alejandra Rangel, Erika Gyengesi, Garry Niedermayer, Gerald Münch
Neuroinflammation is a pathophysiological process present in a number of neurodegenerative disorders, such as Alzheimer's disease, Huntington's disease, Parkinson's disease, stroke, traumatic brain injury including chronic traumatic encephalopathy and other age-related CNS disorders. Although there is still much debate about the initial trigger for some of these neurodegenerative disorders, during the progression of disease, broad range anti-inflammatory drugs including cytokine suppressive anti-inflammatory drugs (CSAIDs) might be promising therapeutic options to limit neuroinflammation and improve the clinical outcome...
February 15, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28203261/curcumin-suppresses-intestinal-fibrosis-by-inhibition-of-ppar%C3%AE-mediated-epithelial-mesenchymal-transition
#6
Su Xu, Bin Jiang, Hui Wang, Cunsi Shen, Hao Chen, Li Zeng
Intestinal fibrotic stricture is a major complication of Crohn's disease (CD) and epithelial-to-mesenchymal transition (EMT) is considered as an important contributor to the formation of intestinal fibrosis by increasing extracellular matrix (ECM) proteins. Curcumin, a compound derived from rhizomes of Curcuma, has been demonstrated with a potent antifibrotic effect. However, its effect on intestinal fibrosis and the potential mechanism is not completely understood. Here we found that curcumin pretreatment significantly represses TGF-β1-induced Smad pathway and decreases its downstream α-smooth muscle actin (α-SMA) gene expression in intestinal epithelial cells (IEC-6); in contrast, curcumin increases expression of E-cadherin and peroxisome proliferator-activated receptor γ (PPARγ) in IEC-6...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28199187/combinatorial-effect-of-curcumin-with-docetaxel-modulates-apoptotic-and-cell-survival-molecules-in-prostate-cancer
#7
Saswati Banerjee, Santosh K Singh, Indrajit Chowdhury, Rajesh Singh
Docetaxel is the most commonly used chemotherapeutic agent to target androgen signaling in metastatic prostate cancer (PCa); however, prolonged treatment with docetaxel results in drug-resistant cancer cells. Combination therapies have the potential of increasing the effectiveness of drug treatment as well as decreasing the side effects. Curcumin is a nontoxic organic compound with multifaceted chemopreventive potential. In this study, we evaluated whether curcumin can reinforce the effect of docetaxel on PCa cells...
March 1, 2017: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28199114/curcumin-loaded-blood-stable-polymeric-micelles-for-enhancing-therapeutic-effect-on-erythroleukemia
#8
Feirong Gong, Dan Chen, Xin Teng, Junhua Ge, Xianfeng Ning, Ya-Ling Shen, Jian Li, Shanfeng Wang
Curcumin has high potential in suppressing many types of cancer and overcoming multi-drug resistance in a multi-faceted manner by targeting diverse molecular targets. However, the rather low systemic bioavailability resulted from its extremely low aqueous solubility and rapid metabolism and excretion in vivo has hampered its application in cancer therapy. With the primary aim to increase the aqueous solubility of curcumin while retaining its stability in the blood circulation before it accesses the tumor site, here we report preparation of curcumin-loaded N-(tert-butoxycarbonyl)-L-phenylalanine end-capped methoxy-poly(ethylene glycol)-block-poly(ε-caprolactone) (mPEG-PCL-Phe(Boc)) micelles with high stability both in vitro and in vivo and anti-tumor efficacy...
February 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28198625/curcumin-attenuates-n-nitrosodiethylamine-induced-liver-injury-in-mice-by-utilizing-the-method-of-metabonomics
#9
Peiyu Qiu, Jiachen Sun, Shuli Man, He Yang, Long Ma, Peng Yu, Wenyuan Gao
N-Nitrosodiethylamine (DEN) as one of food additives existed in cheddar cheese, processed meats, beer, water and so forth. It possessed a potent hepatocarcinogen in animals and humans. Curcumin as a natural dietary compound decreased DEN-induced hepatocarcinogenesis in this research. According to the histopathological examination macroof liver tissues, and biomarker detection in serum and livers, it demonstrated that curcumin attenuated DEN-induced hepatocarcinogenesis through parts of regulating the oxidant stress enzymes (T-SOD and CAT), liver function (ALT and AST) and LDHA, AFP level and COX-2/PGE2 pathway...
February 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28198120/effects-of-curcumin-on-serum-vitamin-e-concentrations-in-individuals-with-metabolic-syndrome
#10
Akram Mohammadi, Hamid Reza Sadeghnia, Maryam Saberi-Karimian, Hamideh Safarian, Gordon A Ferns, Majid Ghayour-Mobarhan, Amirhossein Sahebkar
Vitamin E is an important lipid-soluble antioxidant. The aim of the present study was to investigate the effect of curcumin on serum vitamin E levels in subjects with metabolic syndrome (MetS). A total of 120 subjects aged 18-65 years old with MetS were recruited in this study according to the International Diabetic Federation Criteria. Included subjects were randomized into three groups: subjects receiving lecithinized curcumin (1 g/day equivalent to 200-mg pure curcumin per day) for a period of 6 weeks )n = 40), patients receiving unformulated curcumin (1 g/day) for a period of 6 weeks )n = 40) and a control group receiving placebo for the same period (n = 40)...
February 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28198062/curcumin-suppresses-lung-cancer-stem-cells-via-inhibiting-wnt-%C3%AE-catenin-and-sonic-hedgehog-pathways
#11
Jian-Yun Zhu, Xue Yang, Yue Chen, Ye Jiang, Shi-Jia Wang, Yuan Li, Xiao-Qian Wang, Yu Meng, Ming-Ming Zhu, Xiao Ma, Cong Huang, Rui Wu, Chun-Feng Xie, Xiao-Ting Li, Shan-Shan Geng, Jie-Shu Wu, Cai-Yun Zhong, Hong-Yu Han
Cancer stem cells (CSCs) are highly implicated in the progression of human cancers. Thus, targeting CSCs may be a promising strategy for cancer therapy. Wnt/β-catenin and Sonic Hedgehog pathways play an important regulatory role in maintaining CSC characteristics. Natural compounds, such as curcumin, possess chemopreventive properties. However, the interventional effect of curcumin on lung CSCs has not been clarified. In the present study, tumorsphere formation assay was used to enrich lung CSCs from A549 and H1299 cells...
February 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28198010/phenolic-1-3-diketones-attenuate-lipopolysaccharide-induced-inflammatory-response-by-an-alternative-magnesium-mediated-mechanism
#12
Morena Zusso, Giulia Mercanti, Federica Belluti, Rita Maria Concetta Di Martino, Andrea Pagetta, Carla Marinelli, Paola Brun, Eugenio Ragazzi, Rita Lo, Stefano Stifani, Pietro Giusti, Stefano Moro
BACKGROUND AND PURPOSE: Toll-like receptor 4 (TLR4) plays a key role in the induction of inflammatory responses both in peripheral organs and the CNS. Curcumin exerts anti-inflammatory functions by interfering with LPS-induced TLR4-myeloid differentiation protein-2 (MD-2) dimerization and suppressing pro-inflammatory mediator release. However, the inhibitory mechanism of curcumin remains to be defined. EXPERIMENTAL APPROACH: Binding of bis-demethoxycurcumin (GG6) and its cyclized pyrazole analogue (GG9), which lacks the 1,3-dicarbonyl function, to TLR4-MD-2 was determined using molecular docking simulations...
February 15, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28197150/curcumin-attenuates-titanium-particle-induced-inflammation-by-regulating-macrophage-polarization-in-vitro-and-in-vivo
#13
Bin Li, Yan Hu, Yaochao Zhao, Mengqi Cheng, Hui Qin, Tao Cheng, Qiaojie Wang, Xiaochun Peng, Xianlong Zhang
Periprosthetic inflammatory osteolysis and subsequent aseptic loosening are commonly observed in total joint arthroplasty. Other than revision surgery, few approved treatments are available for this complication. Wear particle-induced inflammation and macrophage polarization state play critical roles in periprosthetic osteolysis. We investigated the effects of curcumin, a polyphenol extracted from Curcuma longa, on titanium (Ti) particle-induced inflammation and macrophage polarization in vitro using the murine cell line RAW 264...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28196290/curcumin-protects-against-intestinal-origin-endotoxemia-in-rat-liver-cirrhosis-by-targeting-pcsk9
#14
Yu Cai, Di Lu, Yanting Zou, Chaohui Zhou, Hongchun Liu, Chuantao Tu, Feng Li, Lili Liu, Shuncai Zhang
Intestinal origin endotoxemia always occurs in severe liver injury. The aim of the current study was to test antiendotoxemia effect of curcumin on tetrachloride (CCl4 )-induced liver cirrhosis rats, and to elucidate the underlying molecular mechanism. Rat cirrhosis models were constructed with CCl4 subcutaneous injections with curcumin (200 mg/kg/d) administered via gavages for 12 wk until the rats were sacrificed. We found that the administration of curcumin improved the physiological condition pertaining to activity index and temperature, and ameliorated the liver injury in CCl4 -induced cirrhosis rats...
February 14, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28195164/ph-sensitive-micelles-for-the-intracellular-co-delivery-of-curcumin-and-pluronic-l61-unimers-for-synergistic-reversal-effect-of-multidrug-resistance
#15
Wei Hong, Hong Shi, Mingxi Qiao, Zehui Zhang, Wenting Yang, Lingying Dong, Fucheng Xie, Chunpeng Zhao, Li Kang
Pluronic L61 unimers, which are biomacromolecular modulators, and curcumin, a small-molecule modulator, were co-formulated into pH-sensitive micelles to reveal the full synergistic potential of combination drug treatments to reverse multidrug resistance (MDR). Compared to monotherapy, combined therapy significantly improved the cytotoxicity, cellular uptake and apoptotic effects of doxorubicin (DOX) against MCF-7/ADR cells. In mechanistic studies, both L61 and curcumin enhanced the cytotoxic effect by acting on mitochondrial signalling pathways...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194406/curcumin-ameliorates-diabetic-nephropathy-by-suppressing-nlrp3-inflammasome-signaling
#16
Miaomiao Lu, Nanchang Yin, Wei Liu, Xiangfei Cui, Shuo Chen, Ermin Wang
Diabetic nephropathy (DN) is the leading cause of end-stage renal disease, partly because of the lack of effective treatments for DN. Curcumin has been shown to exert strong antifibrotic effects in DN, but the underlying mechanisms are not well characterized. In this study, we sought to determine the effects of curcumin on diabetic renal disease in db/db mice and characterize the underlying mechanism of action. We administered curcumin to db/db mice for 16 weeks. In comparison to mock-treated db/db mice, curcumin-treated mice showed diminished renal hypertrophy, reduced mesangial matrix expansion, and a lower level of albuminuria...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28194110/immunosuppressive-effects-of-natural-%C3%AE-%C3%AE-unsaturated-carbonyl-based-compounds-and-their-analogs-and-derivatives-on-immune-cells-a-review
#17
REVIEW
Laiba Arshad, Ibrahim Jantan, Syed Nasir Abbas Bukhari, Md Areeful Haque
The immune system is complex and pervasive as it functions to prevent or limit infections in the human body. In a healthy organism, the immune system and the redox balance of immune cells maintain homeostasis within the body. The failure to maintain the balance may lead to impaired immune response and either over activity or abnormally low activity of the immune cells resulting in autoimmune or immune deficiency diseases. Compounds containing α,β-unsaturated carbonyl-based moieties are often reactive. The reactivity of these groups is responsible for their diverse pharmacological activities, and the most important and widely studied include the natural compounds curcumin, chalcone, and zerumbone...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28193538/multifunctional-luv-liposomes-decorated-for-bbb-and-amyloid-targeting-a-in-vitro-proof-of-concept
#18
Konstantina Papadia, Eleni Markoutsa, Spyridon Mourtas, Anastassios Giannou, Barabara La Ferla, Fransesco Nicotra, Mario Salmona, Pavlos Klepetsanis, Georgios T Stathopoulos, Sophia G Antimisiaris
Multifunctional LUV liposomes (mf-LIPs) were developed, having a curcumin-lipid ligand (TREG) with affinity towards amyloid species, together with ligands to target the transferrin and the LDL receptors of the blood-brain-barrier (BBB), on their surface. mf-LIPs were evaluated for their brain targeting, on hCMEC/D3 monolayers, and for their ability to inhibit Aβ-peptide aggregation. The transport of mf-LIP across hCMEC/D3 monolayers was similar to that of BBB-LIPs, indicating that the presence of TREG on their surface does not reduce their brain targeting potential...
February 10, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28192240/effects-of-curcumin-on-hdl-functionality
#19
REVIEW
Shiva Ganjali, Christopher N Blesso, Maciej Banach, Matteo Pirro, Muhammed Majeed, Amirhossein Sahebkar
Curcumin, a bioactive polyphenol, is a yellow pigment of the Curcuma longa (turmeric) plant. Curcumin has many pharmacologic effects including antioxidant, anti-carcinogenic, anti-obesity, anti-angiogenic and anti-inflammatory properties. Recently, it has been found that curcumin affects lipid metabolism, and subsequently, may alleviate hyperlipidemia and atherosclerosis. Plasma HDL cholesterol (HDL-C) is an independent negative risk predictor of cardiovascular disease (CVD). However, numerous clinical and genetic studies have yielded disappointing results about the therapeutic benefit of raising plasma HDL-C levels...
February 10, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28190385/evidence-of-pkc-binding-and-translocation-to-explain-the-anticancer-mechanism-of-chlorogenic-acid-in-breast-cancer-cells
#20
S J Deka, S Gorai, D Manna, V Trivedi
Chlorogenic acid (CGA) exhibits potentials towards liver, breast and skin cancer. Cancer cells stimulated with CGA exhibits differential expression of transcriptional factors and regulatory molecules but the molecular target of the molecule is not known. Superposition of biophoric elements of CGA with Curcumin gives maximum common substructure score of 0.90. Molecular modeling studies further suggest that CGA fits into the C1b domain of PKC with extensive interaction with residues lining binding site. It binds PKC in a concentration dependent manner with dissociation constant KD, 28...
February 9, 2017: Current Molecular Medicine
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