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Nithyashree N, Prakash N, Waghe P, Santhosh CR, Pavithra BH, Rajashekaraiah R, Sathyanarayana ML, Sunilchandra U, Anjan Kumar KR, Manjunatha SS, Muralidhar Y, Shivaprasad GR. Nanocurcumin Restores Arsenic-Induced Disturbances in Neuropharmacological Activities in Wistar Rats. Toxicol Int 2022. [DOI: 10.18311/ti/2022/v29i3/30342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The present study was carried out to examine the ameliorative potential of nanocurcumin against arsenic induced (sub-chronic) alterations in central nervous system in male Wistar rats. Nanocurcumin was synthesised and the hydrodynamic diameter, zeta potential and particle size were~76.60 nm, (-) 30 mV and 95nm, respectively. Experimental rats sub-chronically exposed to sodium (meta) arsenite (As; 10 mg.kg-1; 70 days; p.o) induced significant (p<0.05) reduction in superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione and favoured free radical generation and induced lipid peroxidation in brain tissue. The exposure resulted in significant (p<0.05) decrease in voluntary- and involuntary motor activities and enhanced anxiety levels. However, experimental rats receiving nanocurcumin (15 mg.kg-1; p.o) showed significant (p<0.05) recovery in enzymatic - and non-enzymatic antioxidant defence system and restoration of redox balance and overcome arsenic induced depression in motor activities and elevated anxiety levels. Further, Arsenic induced elevation in pro-inflammatory cytokines, cyclooxygenase-2 activity and prostaglandin-E2 in brain and angiotensin-II levels (plasma) was significantly (p<0.05) ameliorated by nanocurcumin. Additionally, quantitative real -time polymerase chain reaction revealed a fivefold decrease in Nox2 expression in brain following nanocurcumin administration. Thus, the study concludes that nanocurcumin can serve as a potential therapeutic candidate to counter arsenic induced redox imbalance and neuropharmacological disturbances and there exists a vast scope to exploit its utility after appropriate clinical modelling.
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Agarwala P, Bera T, Sasmal DK. Molecular Mechanism of Interaction of Curcumin with BSA, Surfactants and Live E. Coli Cell Membrane Revealed by Fluorescence Spectroscopy and Confocal Microscopy. Chemphyschem 2022; 23:e202200265. [DOI: 10.1002/cphc.202200265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/20/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Pratibha Agarwala
- Indian Institute of Technology Rajasthan: Indian Institute of Technology Jodhpur Department of chemistry 342037 Jodhpur INDIA
| | - Turban Bera
- Indian Institute of Technology Jodhpur Department of chemistry INDIA
| | - Dibyendu Kumar Sasmal
- Indian Institute of Technology Jodhpur Chemistry NH65, Surpura bypass roadkarwar 342037 Jodhpur INDIA
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Das S, Neal CJ, Ortiz J, Seal S. Engineered nanoceria cytoprotection in vivo: mitigation of reactive oxygen species and double-stranded DNA breakage due to radiation exposure. NANOSCALE 2018; 10:21069-21075. [PMID: 30226515 DOI: 10.1039/c8nr04640a] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Cerium oxide nanomaterials are known to absorb ionizing radiation energy, as well as to neutralize free radicals in solution, by undergoing redox changes. We, therefore, proposed that ceria nanoparticles could be used in biomedical applications as an injectable, radio-protectant material. In this study, we examine the effectiveness of engineered nanoparticles in protecting germ cells from the damaging effects of irradiation-induced cell death, in vivo. C57BL/6J male mice were used as a model and irradiation was localized to the scrotal region at 2.5, 5, and/or 10 Gy intensities. Ceria nanoparticles were introduced as 100 μL injections at 100 nM and 100 μM via tail vein injections, weekly, for one month. Following this, the animals were sacrificed and their organs (heart, brain, kidneys) were harvested. Tissues were fixed, sectioned, and stained for instances of cell death, DNA damage (TUNEL assay), and ROS (nitro-tyrosine evolution). Tissues from mice treated with ceria nanoparticles showed significantly less (∼13% decrease; *P < 0.05) tissue damage (per immunohistochemistry) over controls at up to 5 Gy radiation. DNA damage and ROS also decrease substantially with ceria treatment, confirming ceria's capacity as an injectable, radio-protectant material. The study also highlights the ability of ceria nanoparticles to protect cells/tissues from both direct and indirect effects of ionizing radiation.
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Affiliation(s)
- Soumen Das
- Materials Science and Engineering, Advanced Materials Processing Center, University of Central Florida, Orlando, FL 32816, USA.
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4
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Kar T, Basak P, Ghosh RK, Bhattacharyya M. Protective effects of curcumin against gamma ray induced conformational change of human serum albumin. Int J Biol Macromol 2017; 99:600-607. [PMID: 28274864 DOI: 10.1016/j.ijbiomac.2017.02.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/17/2017] [Accepted: 02/18/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Turban Kar
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Pijush Basak
- Jagadis Bose National Science Talent Search, 1300, Rajdanga Main Road, Sector C, East Kolkata Township, Kolkata 700107, West Bengal, India
| | - Rittik Kumar Ghosh
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Maitree Bhattacharyya
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India; Jagadis Bose National Science Talent Search, 1300, Rajdanga Main Road, Sector C, East Kolkata Township, Kolkata 700107, West Bengal, India.
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Benammi H, Erazi H, El Hiba O, Vinay L, Bras H, Viemari JC, Gamrani H. Disturbed sensorimotor and electrophysiological patterns in lead intoxicated rats during development are restored by curcumin I. PLoS One 2017; 12:e0172715. [PMID: 28267745 PMCID: PMC5340392 DOI: 10.1371/journal.pone.0172715] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 02/08/2017] [Indexed: 01/01/2023] Open
Abstract
Lead poisoning is one of the most significant health problem of environmental origin. It is known to cause different damages in the central and peripheral nervous system which could be represented by several neurophysiological and behavioral symptoms. In this study we firstly investigated the effect of lead prenatal exposure in rats to (3g/L), from neonatal to young age, on the motor/sensory performances, excitability of the spinal cord and gaits during development. Then we evaluated neuroprotective effects of curcumin I (Cur I) against lead neurotoxicity, by means of grasping and cliff avoidance tests to reveal the impairment of the sensorimotor functions in neonatal rats exposed prenatally to lead. In addition, extracellular recordings of motor output in spinal cord revealed an hyper-excitability of spinal networks in lead treated rats. The frequency of induced fictive locomotion was also increased in treated rats. At the young age, rats exhibited an impaired locomotor gait. All those abnormalities were attenuated by Cur I treatment at a dose of 16g/kg. Based on our finding, Cur I has shown features of a potent chemical compound able to restore the neuronal and the relative locomotor behaviors disturbances induced by lead intoxication. Therefore, this chemical can be recommended as a new therapeutic trial against lead induced neurotoxicity.
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Affiliation(s)
- Hind Benammi
- Neuroscience, Pharmacology and Environment Team, faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Hasna Erazi
- Neuroscience, Pharmacology and Environment Team, faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco
| | - Omar El Hiba
- Neuroscience, Pharmacology and Environment Team, faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco
- Department of Biology, faculty of Sciences, Chouaib Doukkali University, EL Jadida, Morocco
| | - Laurent Vinay
- Institut de Neurosciences de la Timone, Unité Mixte de Recherche 7289, CNRS, Université Aix-Marseille, Marseille, France
| | - Hélène Bras
- Institut de Neurosciences de la Timone, Unité Mixte de Recherche 7289, CNRS, Université Aix-Marseille, Marseille, France
| | - Jean-Charles Viemari
- Institut de Neurosciences de la Timone, Unité Mixte de Recherche 7289, CNRS, Université Aix-Marseille, Marseille, France
- * E-mail: (HG); (JCV)
| | - Halima Gamrani
- Neuroscience, Pharmacology and Environment Team, faculty of Science Semlalia, Cadi Ayyad University, Marrakech, Morocco
- * E-mail: (HG); (JCV)
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6
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Silva EMP, Melo T, Sousa BC, Resende DISP, Magalhães LM, Segundo MA, Silva AMS, Domingues MRM. Do cinnamylideneacetophenones have antioxidant properties and a protective effect toward the oxidation of phosphatidylcholines? Eur J Med Chem 2016; 121:331-337. [PMID: 27267003 DOI: 10.1016/j.ejmech.2016.05.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 04/29/2016] [Accepted: 05/19/2016] [Indexed: 01/03/2023]
Abstract
Cinnamylideneacetophenones (CA) are an important group of α,β,γ,δ-diunsaturated ketones that have been widely used in a variety of synthetic transformations. Biological studies concerning these compounds are scarce and refer mainly to antiviral and antibacterial evaluations. Curcumin (CR), a natural polyphenol, is a yellow pigment extracted from the plant Curcuma longa, which is one of the major spices used in the Indian culinary. It has been reported that CR has cancer chemopreventive properties in a range of animal models of chemical carcinogenesis, along with antioxidative and anti-inflammatory properties. Inspired by the biological activity shown by CR and their structural resemblance with CA, it was considered to study the ability of the latter molecules to inhibit lipid oxidation induced by the hydroxyl radical (Fenton reaction) by electrospray ionization (ESI) mass spectrometry (MS) using phosphatidylcholine (PC) liposomes as a model of cell membrane. Compound 4, holding a methylated hydroxy group in the position R(2), and CR showed similar effects in inhibiting lipid peroxidation. In the presence of 7, the extension of oxidation was higher than the one verified in all other compounds. Other methodologies, namely DPPH radical scavenging and oxygen radical absorption capacity (ORAC) assays, were performed to complement and clarify the results attained by oxidation of PC monitored by ESI-MS and to evaluate the antioxidant profile of compounds. For both assays, compound 7 showed to be rather efficient due to its specific structure. This derivative can form a quite stable allylic radical by abstraction of a hydrogen atom which accounts for these results.
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Affiliation(s)
- Eduarda M P Silva
- Organic Chemistry Group, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Tânia Melo
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Bebiana C Sousa
- Organic Chemistry Group, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal; Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Diana I S P Resende
- Organic Chemistry Group, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Luís M Magalhães
- UCIBIO, REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Marcela A Segundo
- UCIBIO, REQUIMTE, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Artur M S Silva
- Organic Chemistry Group, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - M Rosário M Domingues
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal.
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7
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Karmakar G, Nahak P, Guha P, Roy B, Chettri P, Sapkota M, Koirala S, Misono T, Torigoe K, Ghosh S, Panda AK. Effects of Fatty Acids on the Interfacial and Solution Behavior of Mixed Lipidic Aggregates Called Solid Lipid Nanoparticles. J Oleo Sci 2016; 65:419-30. [DOI: 10.5650/jos.ess15234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Gourab Karmakar
- Department of Chemistry and Chemical Technology, Vidyasagar University
| | - Prasant Nahak
- Department of Chemistry and Chemical Technology, Vidyasagar University
| | - Pritam Guha
- Department of Chemistry and Chemical Technology, Vidyasagar University
| | - Biplab Roy
- Department of Chemistry and Chemical Technology, Vidyasagar University
| | | | - Manish Sapkota
- Department of Pharmaceutics, Himalayan Pharmacy Institute
| | - Suraj Koirala
- Department of Pharmaceutics, Himalayan Pharmacy Institute
| | - Takeshi Misono
- Department of Pure and Applied Chemistry, Tokyo University of Science
| | - Kanjiro Torigoe
- Department of Pure and Applied Chemistry, Tokyo University of Science
| | - Shilpi Ghosh
- Department of Biotechnology, University of North Bengal
| | - Amiya Kumar Panda
- Department of Chemistry and Chemical Technology, Vidyasagar University
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Curcumin mitigates accelerated aging after irradiation in Drosophila by reducing oxidative stress. BIOMED RESEARCH INTERNATIONAL 2015; 2015:425380. [PMID: 25815315 PMCID: PMC4359819 DOI: 10.1155/2015/425380] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/15/2014] [Accepted: 09/17/2014] [Indexed: 12/17/2022]
Abstract
Curcumin, belonging to a class of natural phenol compounds, has been extensively studied due to its antioxidative, anticancer, anti-inflammatory, and antineurodegenerative effects. Recently, it has been shown to exert dual activities after irradiation, radioprotection, and radiosensitization. Here, we investigated the protective effect of curcumin against radiation damage using D. melanogaster. Pretreatment with curcumin (100 μM) recovered the shortened lifespan caused by irradiation and increased eclosion rate. Flies subjected to high-dose irradiation showed a mutant phenotype of outstretched wings, whereas curcumin pretreatment reduced incidence of the mutant phenotype. Protein carbonylation and formation of γH2Ax foci both increased following high-dose irradiation most likely due to generation of reactive oxygen species. Curcumin pretreatment reduced the amount of protein carbonylation as well as formation of γH2Ax foci. Therefore, we suggest that curcumin acts as an oxidative stress reducer as well as an effective protective agent against radiation damage.
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Banerjee C, Maiti S, Mustafi M, Kuchlyan J, Banik D, Kundu N, Dhara D, Sarkar N. Effect of encapsulation of curcumin in polymeric nanoparticles: how efficient to control ESIPT process? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10834-44. [PMID: 25148375 DOI: 10.1021/la5023533] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This paper demonstrates the photophysics of curcumin inside polymeric nanoparticles (NPs), which are being recently used as targeted drug delivery vehicles. For this purpose, we have prepared three polymeric NPs by ultrasonication method from three well-defined water-insoluble random copolymers. These copolymers having various degrees of hydrophobicity were synthesized via reversible addition-fragmentation transfer (RAFT) method using styrene and three different functional monomers, namely, 2-hydroxyethyl acrylate, 4-formylphenyl acrylate, and 4-vinylbenzyl chloride. The photophysics of the curcumin molecules inside the polymeric NPs have been monitored by applying tools like steady state and time-resolved fluorescence spectroscopy. An increase in fluorescence intensity along with an increase in the lifetime values indicated a perturbation of the excited state intramolecular proton transfer (ESIPT) process of curcumin inside the polymeric NPs.
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Affiliation(s)
- Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB India
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10
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Curcumin as a wound healing agent. Life Sci 2014; 116:1-7. [PMID: 25200875 DOI: 10.1016/j.lfs.2014.08.016] [Citation(s) in RCA: 374] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 08/19/2014] [Accepted: 08/25/2014] [Indexed: 11/22/2022]
Abstract
Turmeric (Curcuma longa) is a popular Indian spice that has been used for centuries in herbal medicines for the treatment of a variety of ailments such as rheumatism, diabetic ulcers, anorexia, cough and sinusitis. Curcumin (diferuloylmethane) is the main curcuminoid present in turmeric and responsible for its yellow color. Curcumin has been shown to possess significant anti-inflammatory, anti-oxidant, anti-carcinogenic, anti-mutagenic, anti-coagulant and anti-infective effects. Curcumin has also been shown to have significant wound healing properties. It acts on various stages of the natural wound healing process to hasten healing. This review summarizes and discusses recently published papers on the effects of curcumin on skin wound healing. The highlighted studies in the review provide evidence of the ability of curcumin to reduce the body's natural response to cutaneous wounds such as inflammation and oxidation. The recent literature on the wound healing properties of curcumin also provides evidence for its ability to enhance granulation tissue formation, collagen deposition, tissue remodeling and wound contraction. It has become evident that optimizing the topical application of curcumin through altering its formulation is essential to ensure the maximum therapeutical effects of curcumin on skin wounds.
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Xie Y, Zhao QY, Li HY, Zhou X, Liu Y, Zhang H. Curcumin ameliorates cognitive deficits heavy ion irradiation-induced learning and memory deficits through enhancing of Nrf2 antioxidant signaling pathways. Pharmacol Biochem Behav 2014; 126:181-6. [PMID: 25159739 DOI: 10.1016/j.pbb.2014.08.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 07/25/2014] [Accepted: 08/02/2014] [Indexed: 12/15/2022]
Abstract
Oxidative stress is one of the major mechanisms implicated in carbon ion irradiation. Curcumin is a natural phenolic compound with impressive antioxidant properties. What's more, curcumin is recently proved to exert its effects partly radioprotection. In vivo, we investigated the protective effects of curcumin against (12)C(6+)radiation-induced cerebral injury. Our results showed that 4Gy heavy ion radiation-induced spatial strategy and memory decline and reduction of brain superoxide dismutase (SOD) activity levels were all consistently improved by curcumin, and the augmentation of cerebral malonaldehyde (MDA) was lowered by curcumin. Furthermore, both the cerebral cells nuclear erythroid 2-related factor 2 (Nrf2) protein and three typically recognized Nrf2 downstream genes, NAD(P)H quinine oxidoreductase 1 (NQO1), heme oxygenase-1 (HO-1), and γ-glutamyl cysteine synthetase (γ-GCS) were consistently up-regulated in curcumin-pretreated mice. Our study confirmed the antagonistic roles of curcumin to counteract radiation-induced cerebral injury in vivo and suggested that the potent Nrf2 activation capability might be valuable for the protective effects of curcumin against radiation. This provides a potential useful radioprotection dietary component for human populations.
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Affiliation(s)
- Yi Xie
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China
| | - Qiu Yue Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China; Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Hong Yan Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China; Graduate School of Chinese Academy of Sciences, Beijing 100039, China
| | - Xin Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China
| | - Yang Liu
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China
| | - Hong Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Nanchang Road, Lanzhou 730000, China; Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Nanchang Road, Lanzhou 730000, China.
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12
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Banerjee C, Ghosh S, Mandal S, Kuchlyan J, Kundu N, Sarkar N. Exploring the photophysics of curcumin in zwitterionic micellar system: an approach to control ESIPT process in the presence of room temperature ionic liquids (RTILs) and anionic surfactant. J Phys Chem B 2014; 118:3669-81. [PMID: 24617495 DOI: 10.1021/jp411778q] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this manuscript, we have modulated the photophysical properties of curcumin in a zwitterionic (N-hexadecyl-N,N-dimethylammonio-1-propanesulfonate (SB-16)) micellar aggregates with addition of room temperature ionic liquids (RTILs) as well as commonly used anionic surfactant (SDS), using steady-state and time-resolved spectroscopic techniques. To modulate the photophysics, first we studied its interaction with an SB-16 micellar system, then to further exploit its photophysics, three RTILs (EmimES, EmimBS, EmimHS) with variation of alkyl chain lengths as well as SDS were used. It is observed that the rate of degradation of curcumin is drastically decreased after partitioning into the zwitterionic micellar system. It is shown that the dynamics of excited state intramolecular proton transfer (ESIPT) processes can be controlled by using those RTILs and SDS. Our study also reveals that the hindrance of nonradiative processes of curcumin, i.e., ESIPT is more pronounced in the case of RTIL containing a long alkyl chain compared to a small one. However, most interestingly the addition of long chain (dodecyl) anionic surfactant (SDS) promotes the ESIPT process of curcumin. We have also studied the effect of the addition of inorganic salt and compared the results with RTILs. The present work demonstrates an effort to decipher the photophysics of curcumin in zwitterionic micellar systems by monitoring its excited state dynamics.
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Affiliation(s)
- Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
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13
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Scherließ R, Ajmera A, Dennis M, Carroll MW, Altrichter J, Silman NJ, Scholz M, Kemter K, Marriott AC. Induction of protective immunity against H1N1 influenza A(H1N1)pdm09 with spray-dried and electron-beam sterilised vaccines in non-human primates. Vaccine 2014; 32:2231-40. [PMID: 24631078 DOI: 10.1016/j.vaccine.2014.01.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 01/06/2014] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
Abstract
Currently, the need for cooled storage and the impossibility of terminal sterilisation are major drawbacks in vaccine manufacturing and distribution. To overcome current restrictions a preclinical safety and efficacy study was conducted to evaluate new influenza A vaccine formulations regarding thermal resistance, resistance against irradiation-mediated damage and storage stability. We evaluated the efficacy of novel antigen stabilizing and protecting solutions (SPS) to protect influenza A(H1N1)pdm09 split virus antigen under experimental conditions in vitro and in vivo. Original or SPS re-buffered vaccine (Pandemrix) was spray-dried and terminally sterilised by irradiation with 25 kGy (e-beam). Antigen integrity was monitored by SDS-PAGE, dynamic light scattering, size exclusion chromatography and functional haemagglutination assays. In vitro screening experiments revealed a number of highly stable compositions containing glycyrrhizinic acid (GA) and/or chitosan. The most stable composition was selected for storage tests and in vivo assessment of seroconversion in non-human primates (Macaca fascicularis) using a prime-boost strategy. Redispersed formulations with original adjuvant were administered intramuscularly. Storage data revealed high stability of protected vaccines at 4°C and 25°C, 60% relative humidity, for at least three months. Animals receiving original Pandemrix exhibited expected levels of seroconversion after 21 days (prime) and 48 days (boost) as assessed by haemagglutination inhibition and microneutralisation assays. Animals vaccinated with spray-dried and irradiated Pandemrix failed to exhibit seroconversion after 21 days whereas spray-dried and irradiated, SPS-protected vaccines elicited similar seroconversion levels to those vaccinated with original Pandemrix. Boost immunisation with SPS-protected vaccine resulted in a strong increase in seroconversion but had only minor effects in animals treated with non SPS-protected vaccine. In conclusion, utilising the SPS formulation technology, spray-drying and terminal sterilisation of influenza A(H1N1)pdm09 split virus vaccine is feasible. Findings indicate the potential utility of such formulated vaccines e.g. for needle-free vaccination routes and delivery to countries with uncertain cold chain facilities.
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Affiliation(s)
- Regina Scherließ
- Kiel University, Department of Pharmaceutics and Biopharmaceutics, Grasweg 9a, 24118 Kiel, Germany,.
| | - Ankur Ajmera
- Kiel University, Department of Pharmaceutics and Biopharmaceutics, Grasweg 9a, 24118 Kiel, Germany
| | - Mike Dennis
- Public Health England, Research Department, Porton Down, SP4 0JG, United Kingdom
| | - Miles W Carroll
- Public Health England, Research Department, Porton Down, SP4 0JG, United Kingdom,.
| | - Jens Altrichter
- LEUKOCARE AG, Am Klopferspitz 19, 82152 Munich/Martinsried, Germany
| | - Nigel J Silman
- Public Health England, Research Department, Porton Down, SP4 0JG, United Kingdom
| | - Martin Scholz
- LEUKOCARE AG, Am Klopferspitz 19, 82152 Munich/Martinsried, Germany,.
| | - Kristina Kemter
- LEUKOCARE AG, Am Klopferspitz 19, 82152 Munich/Martinsried, Germany
| | - Anthony C Marriott
- Public Health England, Research Department, Porton Down, SP4 0JG, United Kingdom
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14
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Shift of acid–base equilibrium of curcumin in its complexes with gemini surfactant hexamethylene-1,6-bis-(dodecyldimethyl ammonium bromide). Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.12.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Qian T, Kun L, Gao B, Zhu R, Wu X, Wang S. Photo-ionization and photo-excitation of curcumin investigated by laser flash photolysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 116:6-12. [PMID: 23896291 DOI: 10.1016/j.saa.2013.06.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 06/14/2013] [Accepted: 06/19/2013] [Indexed: 06/02/2023]
Abstract
Curcumin (Cur) has putative antitumor properties. In the current study, we examined photophysical and photochemical properties of Cur using laser flash photolysis. The results demonstrated that Cur could be photo-ionized at 355 nm laser pulse to produce radical cation (Cur(+)) and solvated electron e(sol)(-) in 7:3 ethanol-water mixtures. The quantum yield of Cur photo-ionization and the ratio of photo-ionization to photo-excitation were also determined. Cur(+) could be transferred into neutral radical of Cur (Cur) via deprotonation with the pKa 4.13. The excited singlet of Cur ((1)Cur* could be transferred into excited triplet ((3)Cur*, which could be quenched by oxygen to produce singlet oxygen (1)O2*. Reaction of (3)Cur* with tryptophan was confirmed. The results encourage developing curcumin as a photosensitive antitumor agent.
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Affiliation(s)
- Tingting Qian
- School of Life Sciences and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
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Chakraborti S, Dhar G, Dwivedi V, Das A, Poddar A, Chakraborti G, Basu G, Chakrabarti P, Surolia A, Bhattacharyya B. Stable and potent analogues derived from the modification of the dicarbonyl moiety of curcumin. Biochemistry 2013; 52:7449-60. [PMID: 24063255 DOI: 10.1021/bi400734e] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Curcumin has shown promising therapeutic utilities for many diseases, including cancer; however, its clinical application is severely limited because of its poor stability under physiological conditions. Here we find that curcumin also loses its activity instantaneously in a reducing environment. Curcumin can exist in solution as a tautomeric mixture of keto and enol forms, and the enol form was found to be responsible for the rapid degradation of the compound. To increase the stability of curcumin, several analogues were synthesized in which the diketone moiety of curcumin was replaced by isoxazole (compound 2) and pyrazole (compound 3) groups. Isoxazole and pyrazole curcumins were found to be extremely stable at physiological pH, in addition to reducing atmosphere, and they can kill cancer cells under serum-depleted condition. Using molecular modeling, we found that both compounds 2 and 3 could dock to the same site of tubulin as the parent molecule, curcumin. Interestingly, compounds 2 and 3 also show better free radical scavenging activity than curcumin. Altogether, these results strongly suggest that compounds 2 and 3 could be good replacements for curcumin in future drug development.
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Huang CZ, Huang WZ, Zhang G, Tang DL. In vivo study on the effects of curcumin on the expression profiles of anti-tumour genes (VEGF, CyclinD1 and CDK4) in liver of rats injected with DEN. Mol Biol Rep 2013; 40:5825-31. [PMID: 24114697 DOI: 10.1007/s11033-013-2688-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 09/14/2013] [Indexed: 02/05/2023]
Abstract
In this study we investigated the effects of curcumin, derived from plant Curcuma longa, on oxidative toxicity, and the possible molecular mechanism of antitumour of curcumin in liver cancer rats. Results showed that blood levels of Gamma-glutamyltransferase, aspartate aminotransferase, alanine aminotransferase, glutathione S-transferase, and liver level of MD were significantly decreased after curcumin feeding. Levels of the liver malondialdehyde MDA, nitric oxide and antioxidant enzymes were significantly increased. Moreover, RT-PCR and Western blot analysis results showed that curcumin treatment significantly decreased liver vascular endothelial growth factor (VEGF), CyclinD1 and CDK4 mRNA expression levels and CyclinD1 and CDK4 proteins levels in liver cancer rats. These findings were confirmed by histopathology. It is concluded that curcumin can protect the liver from the damage caused by N-nitrosodiethylamine. Moreover, curcumin has the potential to be used in a therapy for liver cancer. The present data provide evidence to support the presence of free radicals and VEGF, CyclinD1 and CDK4 mRNA in rat tumour cells. Studies are in progress in order to further characterize the role of VEGF, CyclinD1 and CDK4 mRNA in liver cancer cells and in hepatic therapeutics.
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Affiliation(s)
- Chu Zhu Huang
- Department of Pharmacy, The First Affiliated Hospital of Shantou University Medical College, Shantou, People's Republic of China
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Neuroprotective effect of curcumin on okadaic acid induced memory impairment in mice. Eur J Pharmacol 2013; 715:381-94. [DOI: 10.1016/j.ejphar.2013.04.033] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 04/24/2013] [Accepted: 04/26/2013] [Indexed: 11/18/2022]
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Curcumin attenuates arsenic-induced hepatic injuries and oxidative stress in experimental mice through activation of Nrf2 pathway, promotion of arsenic methylation and urinary excretion. Food Chem Toxicol 2013; 59:739-47. [DOI: 10.1016/j.fct.2013.07.032] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Revised: 07/09/2013] [Accepted: 07/11/2013] [Indexed: 12/30/2022]
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Ishigaki Y, Tanaka H, Akama H, Ogara T, Uwai K, Tokuraku K. A microliter-scale high-throughput screening system with quantum-dot nanoprobes for amyloid-β aggregation inhibitors. PLoS One 2013; 8:e72992. [PMID: 23991168 PMCID: PMC3753230 DOI: 10.1371/journal.pone.0072992] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 07/23/2013] [Indexed: 01/22/2023] Open
Abstract
The aggregation of amyloid β protein (Aβ) is a key step in the pathogenesis of Alzheimer’s disease (AD), and therefore inhibitory substances for Aβ aggregation may have preventive and/or therapeutic potential for AD. Here we report a novel microliter-scale high-throughput screening system for Aβ aggregation inhibitors based on fluorescence microscopy-imaging technology with quantum-dot Nanoprobes. This screening system could be analyzed with a 5-µl sample volume when a 1536-well plate was used, and the inhibitory activity could be estimated as half-maximal effective concentrations (EC50). We attempted to comprehensively screen Aβ aggregation inhibitors from 52 spices using this system to assess whether this novel screening system is actually useful for screening inhibitors. Screening results indicate that approximately 90% of the ethanolic extracts from the spices showed inhibitory activity for Aβ aggregation. Interestingly, spices belonging to the Lamiaceae, the mint family, showed significantly higher activity than the average of tested spices. Furthermore, we tried to isolate the main inhibitory compound from Saturejahortensis, summer savory, a member of the Lamiaceae, using this system, and revealed that the main active compound was rosmarinic acid. These results demonstrate that this novel microliter-scale high-throughput screening system could be applied to the actual screening of Aβ aggregation inhibitors. Since this system can analyze at a microscopic scale, it is likely that further minimization of the system would easily be possible such as protein microarray technology.
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Affiliation(s)
- Yukako Ishigaki
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Hiroyuki Tanaka
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Hiroaki Akama
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Toshiki Ogara
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Koji Uwai
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
| | - Kiyotaka Tokuraku
- Division of Applied Sciences, Muroran Institute of Technology, Muroran, Japan
- * E-mail:
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Yadav SK, Sah AK, Jha RK, Sah P, Shah DK. Turmeric (curcumin) remedies gastroprotective action. Pharmacogn Rev 2013; 7:42-6. [PMID: 23922455 PMCID: PMC3731878 DOI: 10.4103/0973-7847.112843] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 01/21/2013] [Accepted: 06/01/2013] [Indexed: 12/12/2022] Open
Abstract
The purpose of this review is to summarize the pertinent literature published in the present era regarding the antiulcerogenic property of curcumin against the pathological changes in response to ulcer effectors (Helicobacter pylori infection, chronic ingestion of non-steroidal anti-inflammatory drugs, and exogenous substances). The gastrointestinal problems caused by different etiologies was observed to be associated with the alterations of various physiologic parameters such as reactive oxygen species, nitric oxide synthase, lipid peroxidation, and secretion of excessive gastric acid. Gastrointestinal ulcer results probably due to imbalance between the aggressive and the defensive factors. In 80% of the cases, gastric ulcer is caused primarily due to the use of non-steroidal anti-inflammatory category of drug, 10% by H. pylori, and about 8-10% by the intake of very spicy and fast food. Although a number of antiulcer drugs and cytoprotectants are available, all these drugs have side effects and limitations. In the recent years a widespread search has been launched to identify new antiulcer drugs from synthetic and natural resources. An Indian dietary derivative (curcumin), a yellow pigment found in the rhizome of Curcuma longa, has been widely used for the treatment of several diseases. Epidemiologically, it was suggested that curcumin might reduce the risk of inflammatory disorders, such as cancer and ulcer. These biological effects are attributed to its anti-inflammatory and antioxidant activities. It can, therefore, be reported from the literature that curcumin PRevents gastrointestinal-induced ulcer and can be recommended as a novel drug for ulcer treatment.
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Affiliation(s)
- Santosh Kumar Yadav
- Department of Oral and Maxillofacial Surgery, Chitwan Medical College (P) Ltd., Bharatpur, Chitwan, Nepal
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Screening of medicinal and edible plants in Okinawa, Japan, for enhanced proliferative and collagen synthesis activities in NB1RGB human skin fibroblast cells. Biosci Biotechnol Biochem 2012; 76:2317-20. [PMID: 23221723 DOI: 10.1271/bbb.120478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To identify plants with bioactive potential for skin care, methanol extracts of 56 plant parts from 47 medical and edible plants cultivated in Okinawa were tested for their proliferative effects on NB1RGB skin fibroblast cells. Extracts from six plants, Bischofia javanica, Colocasia esculenta, Melaleuca alternifolia, Piper angustifolia, Jasminum sambac, and Curcuma longa, showed higher NB1RGB cell proliferation activity (>10%) than the control, at various concentrations. Among the six extracts, only the C. longa extract caused an increase in collagen synthesis in NB1RGB cells, as compared to treatment with the positive control, ascorbic acid (AsA). Expression of the collagen synthesis marker, transforming growth factor-β1, was higher after treatment with the C. longa extract than with AsA.
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Patra D, Barakat C, Tafech RM. Study on effect of lipophilic curcumin on sub-domain IIA site of human serum albumin during unfolded and refolded states: A synchronous fluorescence spectroscopic study. Colloids Surf B Biointerfaces 2012; 94:354-61. [DOI: 10.1016/j.colsurfb.2012.02.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 02/14/2012] [Accepted: 02/14/2012] [Indexed: 10/28/2022]
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24
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Scholz M, Lüking A. A protein-stabilizing technology for enhanced antibody stability and antibody-binding profiles in a microchip array. Biotechnol J 2012; 7:1002-7. [DOI: 10.1002/biot.201100494] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 02/14/2012] [Accepted: 03/13/2012] [Indexed: 11/09/2022]
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Ghatak C, Rao VG, Mandal S, Ghosh S, Sarkar N. An Understanding of the Modulation of Photophysical Properties of Curcumin inside a Micelle Formed by an Ionic Liquid: A New Possibility of Tunable Drug Delivery System. J Phys Chem B 2012; 116:3369-79. [DOI: 10.1021/jp211242c] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Chiranjib Ghatak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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Noack A, Hause G, Mäder K. Physicochemical characterization of curcuminoid-loaded solid lipid nanoparticles. Int J Pharm 2012; 423:440-51. [DOI: 10.1016/j.ijpharm.2011.12.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 12/06/2011] [Accepted: 12/08/2011] [Indexed: 01/03/2023]
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Nampoothiri SV, Praseetha EK, Venugopalan VV, Nirmala Menon A. Process development for the enrichment of curcuminoids in turmeric spent oleoresin and its inhibitory potential against LDL oxidation and angiotensin-converting enzyme. Int J Food Sci Nutr 2012; 63:696-702. [PMID: 22263555 DOI: 10.3109/09637486.2011.652941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Turmeric (Curcuma longa) contains biologically active colouring constituents, curcuminoids, which are isolated from the turmeric rhizome by solvent extraction. The mother liquor left after the separation of curcuminoids is known as turmeric spent oleoresin (SOT). The present study developed a method for the enrichment of curcuminoids in SOT. By using this method, curcuminoids in the SOT (8.4%) were doubled (17.5%). Presence of curcuminoids in enriched fraction was confirmed by high performance liquid chromatography (HPLC) and liquid chromatography coupled with mass spectroscopy analysis. Further studies on this fraction showed that it can effectively inhibit angiotensin-converting enzyme and low-density lipoprotein oxidation with IC(50) values of 19.45 μg/ml and 30.52 μg/ml, respectively. The results showed that curcuminoids enriched fraction (CEF) can reduce the risk of hypertension and cardiovascular diseases. In addition to this fraction, a turmerone-rich hexane fraction was also separated from the spent oleoresin.
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Affiliation(s)
- Suresh V Nampoothiri
- Agroprocessing and Natural Products Division, National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, India
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Gupta SC, Prasad S, Kim JH, Patchva S, Webb LJ, Priyadarsini IK, Aggarwal BB. Multitargeting by curcumin as revealed by molecular interaction studies. Nat Prod Rep 2011; 28:1937-55. [PMID: 21979811 DOI: 10.1039/c1np00051a] [Citation(s) in RCA: 410] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Curcumin (diferuloylmethane), the active ingredient in turmeric (Curcuma longa), is a highly pleiotropic molecule with anti-inflammatory, anti-oxidant, chemopreventive, chemosensitization, and radiosensitization activities. The pleiotropic activities attributed to curcumin come from its complex molecular structure and chemistry, as well as its ability to influence multiple signaling molecules. Curcumin has been shown to bind by multiple forces directly to numerous signaling molecules, such as inflammatory molecules, cell survival proteins, protein kinases, protein reductases, histone acetyltransferase, histone deacetylase, glyoxalase I, xanthine oxidase, proteasome, HIV1 integrase, HIV1 protease, sarco (endo) plasmic reticulum Ca(2+) ATPase, DNA methyltransferases 1, FtsZ protofilaments, carrier proteins, and metal ions. Curcumin can also bind directly to DNA and RNA. Owing to its β-diketone moiety, curcumin undergoes keto-enol tautomerism that has been reported as a favorable state for direct binding. The functional groups on curcumin found suitable for interaction with other macromolecules include the α, β-unsaturated β-diketone moiety, carbonyl and enolic groups of the β-diketone moiety, methoxy and phenolic hydroxyl groups, and the phenyl rings. Various biophysical tools have been used to monitor direct interaction of curcumin with other proteins, including absorption, fluorescence, Fourier transform infrared (FTIR) and circular dichroism (CD) spectroscopy, surface plasmon resonance, competitive ligand binding, Forster type fluorescence resonance energy transfer (FRET), radiolabeling, site-directed mutagenesis, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), immunoprecipitation, phage display biopanning, electron microscopy, 1-anilino-8-naphthalene-sulfonate (ANS) displacement, and co-localization. Molecular docking, the most commonly employed computational tool for calculating binding affinities and predicting binding sites, has also been used to further characterize curcumin's binding sites. Furthermore, the ability of curcumin to bind directly to carrier proteins improves its solubility and bioavailability. In this review, we focus on how curcumin directly targets signaling molecules, as well as the different forces that bind the curcumin-protein complex and how this interaction affects the biological properties of proteins. We will also discuss various analogues of curcumin designed to bind selective targets with increased affinity.
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Affiliation(s)
- Subash C Gupta
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA
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Jacob JA, Naumov S, Mukherjee T, Kapoor S. Preparation, characterization, surface modification and redox reactions of silver nanoparticles in the presence of tryptophan. Colloids Surf B Biointerfaces 2011; 87:498-504. [DOI: 10.1016/j.colsurfb.2011.06.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 06/10/2011] [Accepted: 06/13/2011] [Indexed: 11/16/2022]
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30
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Yadav RS, Chandravanshi LP, Shukla RK, Sankhwar ML, Ansari RW, Shukla PK, Pant AB, Khanna VK. Neuroprotective efficacy of curcumin in arsenic induced cholinergic dysfunctions in rats. Neurotoxicology 2011; 32:760-8. [PMID: 21839772 DOI: 10.1016/j.neuro.2011.07.004] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Revised: 06/26/2011] [Accepted: 07/10/2011] [Indexed: 01/18/2023]
Abstract
Our recent studies have shown that curcumin protects arsenic induced neurotoxicity by modulating oxidative stress, neurotransmitter levels and dopaminergic system in rats. As chronic exposure to arsenic has been associated with cognitive deficits in humans, the present study has been carried out to implore the neuroprotective potential of curcumin in arsenic induced cholinergic dysfunctions in rats. Rats treated with arsenic (sodium arsenite, 20mg/kg body weight, p.o., 28 days) exhibited a significant decrease in the learning activity, assessed by passive avoidance response associated with decreased binding of (3)H-QNB, known to label muscarinic-cholinergic receptors in hippocampus (54%) and frontal cortex (27%) as compared to controls. Decrease in the activity of acetylcholinesterase in hippocampus (46%) and frontal cortex (33%), staining of Nissl body, immunoreactivity of choline acetyltransferase (ChAT) and expression of ChAT protein in hippocampal region was also observed in arsenic treated rats as compared to controls. Simultaneous treatment with arsenic and curcumin (100mg/kg body weight, p.o., 28 days) increased learning and memory performance associated with increased binding of (3)H-QNB in hippocampus (54%), frontal cortex (25%) and activity of acetylcholinesterase in hippocampus (41%) and frontal cortex (29%) as compared to arsenic treated rats. Increase in the expression of ChAT protein, immunoreactivity of ChAT and staining of Nissl body in hippocampal region was also observed in rats simultaneously treated with arsenic and curcumin as compared to those treated with arsenic alone. The results of the present study suggest that curcumin significantly modulates arsenic induced cholinergic dysfunctions in brain and also exhibits neuroprotective efficacy of curcumin.
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Affiliation(s)
- Rajesh S Yadav
- CSIR - Indian Institute of Toxicology Research, Post Box 80, MG Marg, Lucknow 226 001, India
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Abdul-Aziz KK. Comparative Evaluation of the Anti-ulcer Activity of Curcumin and Omeprazole during the Acute Phase of Gastric Ulcer—Efficacy of Curcumin in Gastric Ulcer Prevention against Omeprazole. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/fns.2011.26088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Nagarajan S, Kubra IR, Rao LJM. Separation of Curcuminoids Enriched Fraction from Spent Turmeric Oleoresin and Its Antioxidant Potential. J Food Sci 2010; 75:H158-62. [DOI: 10.1111/j.1750-3841.2010.01696.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim SH, Gwon SY, Burkinshaw SM, Son YA. The photo- and electrophysical properties of curcumin in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 76:384-387. [PMID: 20430693 DOI: 10.1016/j.saa.2010.03.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 03/16/2010] [Accepted: 03/17/2010] [Indexed: 05/29/2023]
Abstract
An investigation of the photo- and electrophysical properties of curcumin (1,7-bis[4-hydroxy-3-methoxyphenyl]-1,6-heptadiene-3,5-dione) revealed well-defined color changes upon the addition of Hg(2+) or OH(-). Curcumin exhibited high selectivity for Hg(2+) ions, as compared with Cu(2+), Fe(2+), Fe(3+), Zn(2+), Na(+) and Ni(2+) ions in DMSO/H(2)O (5:1, v/v) which was attributed to the formation of a 4:1 Hg(2+)-curcumin coordination complex. Spectral responses at lambda(max)=434nm revealed that curcumin can function as a NOR logic gate with OH(-) and Hg(2+) as input variables. The electrochromic properties of curcumin were studied using an ITO/curcumin-Bu(4)NClO(4)/ITO cell. The electrochromic cell colored red at 3V, but changed to yellow in open-circuit condition.
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Affiliation(s)
- Sung-Hoon Kim
- Department of Textile System Engineering, Kyungpook National University, Daegu 702-701, South Korea.
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Nagarathnam R, Rengasamy A, Balasubramanian R. Purification and properties of cysteine protease from rhizomes of Curcuma longa (Linn.). JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2010; 90:97-105. [PMID: 20355018 DOI: 10.1002/jsfa.3789] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Turmeric rhizome (Curcuma domestica Linn.) contains proteases and has proteolytic activity. Curcumin from turmeric rhizomes has been used for healing many ailments, including cancer. The purpose of this study was to purify turmeric protease and to research their biochemical characteristics [corrected]. RESULTS Cysteine protease from C. domestica has been purified to homogeneity using acetone precipitation followed by preparatory native polyacrylamide gel electrophoresis (PAGE). This protocol resulted in six fold purification with 28% final recovery. The purified turmeric protease showed a prominent single peak and band on high-performance liquid chromatography and sodium dodecyl sulfate-PAGE, respectively, and an estimated molecular weight of 43 KDa, and exhibited optimal activity between 37 and 60 degrees C. The protease activity of the turmeric protease was significantly inhibited by iodoacetic acid. The turmeric protease had higher alanine and glutamate content and cleaved synthetic peptides N-Cbz-Ile-Pro and N-Cbz-Phe-Leu in a time-dependent manner. Peptide mass fingerprint using matrix-assisted laser desorption/ionization-time of flight mass spectroscopy revealed peptide matches to proteasome subunit alpha type 3 of Oryza sativa ssp. japonica (Rice). The turmeric protease showed antifungal activity at 10 microg mL(-1) towards pathogens Pythium aphanidermatum, Trichoderma viride and Fusarium sp. CONCLUSION Cysteine addition significantly activated turmeric protease. The protease inhibition test suggested that turmeric protease belonged to the cysteine type. The biochemical characteristics of turmeric protease described in this paper can provide useful information for potential end uses of turmeric protease for pharmaceutical industry applications such as therapeutics.
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Affiliation(s)
- Radhakrishnan Nagarathnam
- Centre for Advanced studies in Botany, Guindy Campus, University of Madras, Chennai 600025, Tamil Nadu, India
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Chitosan-alginate sponge: preparation and application in curcumin delivery for dermal wound healing in rat. J Biomed Biotechnol 2009; 2009:595126. [PMID: 19918372 PMCID: PMC2775931 DOI: 10.1155/2009/595126] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2009] [Accepted: 09/01/2009] [Indexed: 02/05/2023] Open
Abstract
A biodegradable sponge, composed of chitosan (CS) and sodium alginate (SA), was successfully obtained in this work. The sponge was ethereal and pliable. The chemical structure and morphology of the sponges was characterized by FTIR and SEM. The swelling ability, in vitro drug release and degradation behaviors, and an in vivo animal test were employed to confirm the applicability of this sponge as a wound dressing material. As the chitosan content in the sponge decreased, the swelling ability decreased. All types of the sponges exhibited biodegradable properties. The release of curcumin from the sponges could be controlled by the crosslinking degree. Curcumin could be released from the sponges in an extended period for up to 20 days. An in vivo animal test using SD rat showed that sponge had better effect than cotton gauze, and adding curcumin into the sponge enhanced the therapeutic healing effect.
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Yadav RS, Sankhwar ML, Shukla RK, Chandra R, Pant AB, Islam F, Khanna VK. Attenuation of arsenic neurotoxicity by curcumin in rats. Toxicol Appl Pharmacol 2009; 240:367-76. [DOI: 10.1016/j.taap.2009.07.017] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 07/15/2009] [Accepted: 07/15/2009] [Indexed: 12/22/2022]
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Priyadarsini KI. Photophysics, photochemistry and photobiology of curcumin: Studies from organic solutions, bio-mimetics and living cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2009. [DOI: 10.1016/j.jphotochemrev.2009.05.001] [Citation(s) in RCA: 292] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Daneshgar P, Norouzi P, Moosavi-Movahedi AA, Ganjali MR, Haghshenas E, Dousty F, Farhadi M. Fabrication of carbon nanotube and dysprosium nanowire modified electrodes as a sensor for determination of curcumin. J APPL ELECTROCHEM 2009. [DOI: 10.1007/s10800-009-9908-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Itokawa H, Shi Q, Akiyama T, Morris-Natschke SL, Lee KH. Recent advances in the investigation of curcuminoids. Chin Med 2008; 3:11. [PMID: 18798984 PMCID: PMC2576304 DOI: 10.1186/1749-8546-3-11] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Accepted: 09/17/2008] [Indexed: 11/30/2022] Open
Abstract
More than 30 Curcuma species (Zingiberaceae) are found in Asia, where the rhizomes of these plants are used as both food and medicine, such as in traditional Chinese medicine. The plants are usually aromatic and carminative, and are used to treat indigestion, hepatitis, jaundice, diabetes, atherosclerosis and bacterial infections. Among the Curcuma species, C. longa, C. aromatica and C. xanthorrhiza are popular. The main constituents of Curcuma species are curcuminoids and bisabolane-type sesquiterpenes. Curcumin is the most important constituent among natural curcuminoids found in these plants. Published research has described the biological effects and chemistry of curcumin. Curcumin derivatives have been evaluated for bioactivity and structure-activity relationships (SAR). In this article, we review the literature between 1976 and mid-2008 on the anti-inflammatory, anti-oxidant, anti-HIV, chemopreventive and anti-prostate cancer effects of curcuminoids. Recent studies on curcuminoids, particularly on curcumin, have discovered not only much on the therapeutic activities, but also on mechanisms of molecular biological action and major genomic effects.
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Affiliation(s)
- Hideji Itokawa
- School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599-7360, USA.
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Gaspard S, Forster M, Huber C, Zafiu C, Trettenhahn G, Kautek W, Castillejo M. Femtosecond laser processing of biopolymers at high repetition rate. Phys Chem Chem Phys 2008; 10:6174-81. [PMID: 18846308 DOI: 10.1039/b807870j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The large intensities available with femtosecond (fs) laser pulses allow permanent structural modifications in transparent materials with high spatial resolution. Irradiation of self-standing transparent biopolymer films, such as collagen, pure and curcumin doped gelatine employing a 60-fs high-power 11 MHz Ti-Sapphire oscillator laser system linked to an optical microscope led to modifications and ablation. Swelling modifications consisting in the foaming of the irradiated area and formation of a single layer of bubbles arranged around the narrow ablation crater were investigated by optical, scanning force (SFM) and scanning electron (SEM) microscopy. These modifications occur at fluences below the respective ablation thresholds, i.e. ablation processes take place on modified swelled phases. The results are discussed in terms of local temperature increase, generation of thermoelastic stress, physico-chemical effects, and in terms of an incubation model, i.e. the accumulation of these phenomena upon successive pulse irradiation.
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Affiliation(s)
- Solenne Gaspard
- Instituto de Química Física Rocasolano, CSIC, Serrano 119, 28006 Madrid, Spain
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Stanić Z, Voulgaropoulos A, Girousi S. Electroanalytical Study of the Antioxidant and Antitumor Agent Curcumin. ELECTROANAL 2008. [DOI: 10.1002/elan.200804177] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Characterization and bioavailability of liposomes containing a ukon extract. Biosci Biotechnol Biochem 2008; 72:1199-205. [PMID: 18460803 DOI: 10.1271/bbb.70659] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In order to use liposomes as an efficient carrier of functional food materials, liposomes encapsulating a ukon extract (LUE) were prepared by the mechanochemical method under different conditions, and were physico-chemically and biochemically characterized. After a homogenization treatment, the size of LUE decreased with decreasing concentration of the extract from 10 to 2.5 wt %, but did not decrease below 570 nm. LUE were thus subjected to microfluidization. The LUE solutions obtained from less than 5 wt % of the extract remained well dispersed for at least 14 d, whereas those from 10 wt % showed phase separation. With 5 wt % of the extract, the size of LUE obtained at an inlet pressure of 100 MPa was smaller than that obtained at 20 MPa, and reached below 180 nm. Under optimal conditions, resulting LUE was confirmed to be small unilamellar vesicles (SUV) with a diameter of approximately 100 nm by freeze-fracture electron microscopy (FFEM). When used for treating simulated gastric and intestinal fluids, LUE obtained by microfluidization showed a 2-fold higher residual rate of curcumin than the uncapsuled extract itself. The bioactivity of LUE was further examined for its suppressive effect on carbon tetrachloride (CCl(4))-induced liver injury by using mice. Orally administrated LUE at a dose of 10 mg/kg as the extract had a much higher suppressive effect on the serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels, compared to the uncapsuled extract at a dose of 33 mg/kg.
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Aggarwal BB, Sundaram C, Malani N, Ichikawa H. CURCUMIN: THE INDIAN SOLID GOLD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 595:1-75. [PMID: 17569205 DOI: 10.1007/978-0-387-46401-5_1] [Citation(s) in RCA: 842] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Turmeric, derived from the plant Curcuma longa, is a gold-colored spice commonly used in the Indian subcontinent, not only for health care but also for the preservation of food and as a yellow dye for textiles. Curcumin, which gives the yellow color to turmeric, was first isolated almost two centuries ago, and its structure as diferuloylmethane was determined in 1910. Since the time of Ayurveda (1900 Bc) numerous therapeutic activities have been assigned to turmeric for a wide variety of diseases and conditions, including those of the skin, pulmonary, and gastrointestinal systems, aches, pains, wounds, sprains, and liver disorders. Extensive research within the last half century has proven that most of these activities, once associated with turmeric, are due to curcumin. Curcumin has been shown to exhibit antioxidant, anti-inflammatory, antiviral, antibacterial, antifungal, and anticancer activities and thus has a potential against various malignant diseases, diabetes, allergies, arthritis, Alzheimer's disease, and other chronic illnesses. These effects are mediated through the regulation of various transcription factors, growth factors, inflammatory cytokines, protein kinases, and other enzymes. Curcumin exhibits activities similar to recently discovered tumor necrosis factor blockers (e.g., HUMIRA, REMICADE, and ENBREL), a vascular endothelial cell growth factor blocker (e.g., AVASTIN), human epidermal growth factor receptor blockers (e.g., ERBITUX, ERLOTINIB, and GEFTINIB), and a HER2 blocker (e.g., HERCEPTIN). Considering the recent scientific bandwagon that multitargeted therapy is better than monotargeted therapy for most diseases, curcumin can be considered an ideal "Spice for Life".
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MESH Headings
- Animals
- Anti-Bacterial Agents/chemistry
- Anti-Bacterial Agents/pharmacology
- Anti-Bacterial Agents/therapeutic use
- Anti-Inflammatory Agents, Non-Steroidal/chemistry
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Antifungal Agents/chemistry
- Antifungal Agents/pharmacology
- Antifungal Agents/therapeutic use
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/therapeutic use
- Antioxidants/chemistry
- Antioxidants/pharmacology
- Antioxidants/therapeutic use
- Antiviral Agents/chemistry
- Antiviral Agents/pharmacology
- Antiviral Agents/therapeutic use
- Arthritis, Rheumatoid/drug therapy
- Curcuma/chemistry
- Curcumin/analogs & derivatives
- Curcumin/chemistry
- Curcumin/metabolism
- Curcumin/pharmacology
- Curcumin/therapeutic use
- Humans
- India
- Medicine, Ayurvedic
- Models, Biological
- Molecular Structure
- Neoplasms/drug therapy
- Phytotherapy
- Plants, Medicinal
- Spices
- Structure-Activity Relationship
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Affiliation(s)
- Bharat B Aggarwal
- Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
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Affiliation(s)
- Shishir Shishodia
- Department of Biology, Texas Southern University, Houston, Texas, USA
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Barik A, Priyadarsini K, Mohan H. Photophysical Studies on Binding of Curcumin to Bovine Serum Albumin¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2003)0770597psoboc2.0.co2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Barik A, Mishra B, Kunwar A, Indira Priyadarsini K. Interaction of curcumin with human serum albumin: Thermodynamic properties, fluorescence energy transfer and denaturation effects. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.01.006] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Okunieff P, Xu J, Hu D, Liu W, Zhang L, Morrow G, Pentland A, Ryan JL, Ding I. Curcumin protects against radiation-induced acute and chronic cutaneous toxicity in mice and decreases mRNA expression of inflammatory and fibrogenic cytokines. Int J Radiat Oncol Biol Phys 2006; 65:890-8. [PMID: 16751071 DOI: 10.1016/j.ijrobp.2006.03.025] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Revised: 03/07/2006] [Accepted: 03/08/2006] [Indexed: 12/15/2022]
Abstract
PURPOSE To determine whether curcumin ameliorates acute and chronic radiation skin toxicity and to examine the expression of inflammatory cytokines (interleukin [IL]-1, IL-6, IL-18, IL-1Ra, tumor necrosis factor [TNF]-alpha, and lymphotoxin-beta) or fibrogenic cytokines (transforming growth factor [TGF]-beta) during the same acute and chronic phases. METHODS AND MATERIALS Curcumin was given intragastrically or intraperitoneally to C3H/HeN mice either: 5 days before radiation; 5 days after radiation; or both 5 days before and 5 days after radiation. The cutaneous damage was assessed at 15-21 days (acute) and 90 days (chronic) after a single 50 Gy radiation dose was given to the hind leg. Skin and muscle tissues were collected for measurement of cytokine mRNA. RESULTS Curcumin, administered before or after radiation, markedly reduced acute and chronic skin toxicity in mice (p < 0.05). Additionally, curcumin significantly decreased mRNA expression of early responding cytokines (IL-1 IL-6, IL-18, TNF-alpha, and lymphotoxin-beta) and the fibrogenic cytokine, TGF-beta, in cutaneous tissues at 21 days postradiation. CONCLUSION Curcumin has a protective effect on radiation-induced cutaneous damage in mice, which is characterized by a downregulation of both inflammatory and fibrogenic cytokines in irradiated skin and muscle, particularly in the early phase after radiation. These results may provide the molecular basis for the application of curcumin in clinical radiation therapy.
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Affiliation(s)
- Paul Okunieff
- Department of Radiation Oncology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
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Lin L, Lee KH. Structure-Activity Relationships of Curcumin and Its Analogs with Different Biological Activities††Antitumor Agents 241. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2006. [DOI: 10.1016/s1572-5995(06)80040-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Jayaprakasha G, Jagan Mohan Rao L, Sakariah K. Chemistry and biological activities of C. longa. Trends Food Sci Technol 2005. [DOI: 10.1016/j.tifs.2005.08.006] [Citation(s) in RCA: 206] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Garg AK, Buchholz TA, Aggarwal BB. Chemosensitization and radiosensitization of tumors by plant polyphenols. Antioxid Redox Signal 2005; 7:1630-47. [PMID: 16356126 DOI: 10.1089/ars.2005.7.1630] [Citation(s) in RCA: 193] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The treatment of cancer with chemotherapeutic agents and radiation has two major problems: time-dependent development of tumor resistance to therapy (chemoresistance and radioresistance) and nonspecific toxicity toward normal cells. Many plant-derived polyphenols have been studied intently for their potential chemopreventive properties and are pharmacologically safe. These compounds include genistein, curcumin, resveratrol, silymarin, caffeic acid phenethyl ester, flavopiridol, emodin, green tea polyphenols, piperine, oleandrin, ursolic acid, and betulinic acid. Recent research has suggested that these plant polyphenols might be used to sensitize tumor cells to chemotherapeutic agents and radiation therapy by inhibiting pathways that lead to treatment resistance. These agents have also been found to be protective from therapy-associated toxicities. How these polyphenols protect normal cells and sensitize tumor cells to treatment is discussed in this review.
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Affiliation(s)
- Amit K Garg
- Department of Radiation Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
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