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Heparin: An old drug for new clinical applications. Carbohydr Polym 2022; 295:119818. [DOI: 10.1016/j.carbpol.2022.119818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 12/23/2022]
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2
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Ahmad A, Vaghasiya K, Kumar A, Alam P, Raza SS, Verma RK, Khan R. Enema based therapy using liposomal formulation of low molecular weight heparin for treatment of active ulcerative colitis: New adjunct therapeutic opportunity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111851. [PMID: 33579485 DOI: 10.1016/j.msec.2020.111851] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/04/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023]
Abstract
Ulcerative colitis (UC) is an idiopathic bowel disease involving chronic inflammation and ulcers in colon and implicates severe epithelial damage with disruption in colon homeostasis. Presently existing treatments possess serious concerns like off target effects and adverse reactions, drug inactivation, poor absorption and other complications resulting in poor bioavailability. In context of high risk of thrombotic events in UC patients, heparin can offer appreciable benefits in UC management due to its remarkable anti-coagulating properties, its ability to intervene inflammatory pathways and acceleration of wound healing process. However, oral administration of heparin being impractical due to harsh gastric acidic environment and heparin degradation, conventional heparin administration is done via intravenous route. Present study was designed to formulate, characterize and evaluate sustained release heparin formulation in mice model of experimental colitis. Heparin liposomes (HLp) were formulated by solvent evaporation and extrusion process and possessed hydrodynamic diameter of 242 ± 4.3 nm. Size, shape and surface morphology was confirmed by TEM, SEM and AFM micrographs while encapsulation efficiency and loading of heparin in optimized HLp were 59.61% and 12.27%, respectively. HLp enema administration ameliorated gross disease indices like body weight, colon length, stool consistency, fecal occult blood. Further, anti-inflammatory efficacy of HLp was established in histopathological analysis where HLp appreciably restored protective mucin layer, colon epithelial mucosal histoarchitecture and considerably attenuated mast cell infiltration in colon epithelia. Overall, results of this study indicate that HLp demonstrated an appreciable therapeutic efficacy in experimental colitis and these results are attributed to their ability to suppress inflammation.
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Affiliation(s)
- Anas Ahmad
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Kalpesh Vaghasiya
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Ajay Kumar
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India
| | - Pravej Alam
- Department of Biology, College of Sciences and Humanities, Prince Sattam bin Abdulaziz University, PO Box - 173, Alkharj 11942, Saudi Arabia
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Sarfarazganj, Lucknow 226003, Uttar Pradesh, India; Department of Stem Cell Biology and Regenerative Medicine, Era University, Sarfarazganj, Lucknow 226003, Uttar Pradesh, India
| | - Rahul Kumar Verma
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India.
| | - Rehan Khan
- Institute of Nano Science and Technology, Habitat Centre, Phase 10, Sector 64, Mohali, Punjab 160062, India.
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3
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Sleep disorders and inflammatory disease activity: chicken or the egg? Am J Gastroenterol 2015; 110:484-8. [PMID: 25155226 DOI: 10.1038/ajg.2014.247] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 06/30/2014] [Indexed: 02/07/2023]
Abstract
Sleep dysfunction is a highly prevalent condition that has long been implicated in accelerating disease states characterized by having an inflammatory component such as systemic lupus erythematosus, HIV, and multiple sclerosis. Inflammatory bowel disease (IBD) is a chronic, debilitating disease that is characterized by waxing and waning symptoms, which are a direct result of increased circulating inflammatory cytokines. Recent studies have demonstrated sleep dysfunction and the disruption of the circadian rhythm to result in an upregulation of inflammatory cytokines. Not only does this pose a potential trigger for disease flares but also an increased risk of malignancy in this subset of patients. This begs to question whether or not there is a therapeutic role of sleep cycle and circadian rhythm optimization in the prevention of IBD flares. Further research is needed to clarify the role of sleep dysfunction and alterations of the circadian rhythm in modifying disease activity and also in reducing the risk of malignancy in patients suffering from IBD.
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Dignass A, Lindsay JO, Sturm A, Windsor A, Colombel JF, Allez M, d'Haens G, d'Hoore A, Mantzanaris G, Novacek G, Öresland T, Reinisch W, Sans M, Stange E, Vermeire S, Travis S, van Assche G. [Second European evidence-based consensus on the diagnosis and management of ulcerative colitis Part 2: Current management (Spanish version)]. REVISTA DE GASTROENTEROLOGÍA DE MÉXICO 2015; 80:32-73. [PMID: 25769217 DOI: 10.1016/j.rgmx.2014.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 10/23/2014] [Indexed: 02/06/2023]
Affiliation(s)
- A Dignass
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso.
| | | | - A Sturm
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - A Windsor
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - J-F Colombel
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - M Allez
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - G d'Haens
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - A d'Hoore
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - G Mantzanaris
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - G Novacek
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - T Öresland
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - W Reinisch
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - M Sans
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - E Stange
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - S Vermeire
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
| | - S Travis
- Contribuyeron por igual a este trabajo; Coordinadores del Consenso
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Park YS, Chung SH, Lee SK, Kim JH, Kim JB, Kim TK, Kim DS, Baik HW. Melatonin improves experimental colitis with sleep deprivation. Int J Mol Med 2015; 35:979-86. [PMID: 25625560 PMCID: PMC4735700 DOI: 10.3892/ijmm.2015.2080] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 12/22/2014] [Indexed: 12/28/2022] Open
Abstract
Sleep deprivation (SD) is an epidemic phenomenon in modern countries, and its harmful effects are well known. SD acts as an aggravating factor in inflammatory bowel disease. Melatonin is a sleep-related neurohormone, also known to have antioxidant and anti-inflammatory effects in the gastrointestinal tract; however, the effects of melatonin on colitis have been poorly characterized. Thus, in this study, we assessed the measurable effects of SD on experimental colitis and the protective effects of melatonin. For this purpose, male imprinting control region (ICR) mice (n=24) were used; the mice were divided into 4 experimental groups as follows: the control, colitis, colitis with SD and colitis with SD and melatonin groups. Colitis was induced by the administration of 5% dextran sulfate sodium (DSS) in the drinking water for 6 days. The mice were sleep-deprived for 3 days. Changes in body weight, histological analyses of colon tissues and the expression levels of pro-inflammatory cytokines and genes were evaluated. SD aggravated inflammation and these effects were reversed by melatonin in the mice with colitis. In addition, weight loss in the mice with colitis with SD was significantly reduced by the injection of melatonin. Treatment with melatonin led to high survival rates in the mice, in spite of colitis with SD. The levels of pro-inflammatory cytokines, such as interleukin (IL)-1β, IL-6, IL-17, interferon-γ and tumor necrosis factor-α, in the serum of mice were significantly increased by SD and reduced by melatonin treatment. The melatonin-treated group showed a histological improvement of inflammation. Upon gene analysis, the expression of the inflammatory genes, protein kinase Cζ (PKCζ) and calmodulin 3 (CALM3), was increased by SD, and the levels decreased following treatment with melatonin. The expression levels of the apoptosis-related inducible nitric oxide synthase (iNOS) and wingless-type MMTV integration site family, member 5A (Wnt5a) genes was decreased by SD, but increased following treatment with melatonin. Treatment with melatonin reduced weight loss and prolonged survival in mice with colitis with SD. Melatonin exerted systemic anti-inflammatory effects. Gene analysis revealed a possible mechanism of action of melatonin in inflammation and sleep disturbance. Thus, melatonin may be clinically applicable for patients with inflammatory bowel disease, particulary those suffering from sleep disturbances.
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Affiliation(s)
- Young-Sook Park
- Department of Gastroenterology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Sook-Hee Chung
- Department of Gastroenterology, Ajou University School of Medicine, Suwon 443-721, Republic of Korea
| | - Seong-Kyu Lee
- Department of Biochemistry and Molecular Biology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Ja-Hyun Kim
- Department of Biochemistry and Molecular Biology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Jun-Bong Kim
- Department of Gastroenterology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Tae-Kyun Kim
- Department of Gastroenterology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Dong-Shin Kim
- Department of Gastroenterology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
| | - Haing-Woon Baik
- Department of Biochemistry and Molecular Biology, School of Medicine, Eulji University, Daejeon 301-746, Republic of Korea
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Dignass A, Lindsay JO, Sturm A, Windsor A, Colombel JF, Allez M, D'Haens G, D'Hoore A, Mantzaris G, Novacek G, Oresland T, Reinisch W, Sans M, Stange E, Vermeire S, Travis S, Van Assche G. Second European evidence-based consensus on the diagnosis and management of ulcerative colitis part 2: current management. J Crohns Colitis 2012; 6:991-1030. [PMID: 23040451 DOI: 10.1016/j.crohns.2012.09.002] [Citation(s) in RCA: 683] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 09/03/2012] [Indexed: 02/07/2023]
Affiliation(s)
- Axel Dignass
- Department of Medicine 1, Agaplesion Markus Hospital, Wilhelm-Epstein-Str. 4, D-60431 Frankfurt/Main, Germany.
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Doneanu CE, Chen W, Gebler JC. Analysis of oligosaccharides derived from heparin by ion-pair reversed-phase chromatography/mass spectrometry. Anal Chem 2009; 81:3485-99. [PMID: 19344114 DOI: 10.1021/ac802770r] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Current chromatographic and mass spectrometric techniques have limitations for analyzing heparin and heparin oligomers due to their high polarity, structural diversity, and sulfate lability. A rapid method for the analysis of heparin oligosaccharides was developed using ion-pair reversed-phase ultraperformance liquid chromatography coupled with electrospray quadruple time-of-flight mass spectrometry (IPRP-UPLC ESI Q-TOF MS). The method utilizes an optimized buffer system containing a linear pentylamine and a unique additive, 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP), to achieve highly efficient separation together with enhanced mass response of heparin oligosaccharides. Analyses of a heparin oligosaccharide test mixture, dp6 through dp22, reveal that the chromatographic conditions enable baseline resolution of isomeric heparin oligosaccharides (dp6) and produce intact molecular ions with no sulfate losses during mass spectrometric analysis. In addition, the described conditions are amenable to the detection of heparin oligosaccharides in positive ion mode, yield stronger positive ion signals for corresponding oligosaccharides compared to the negative ion mode, and allow identification of structural isomers by an MS/MS approach. Because sensitive detection of oligosaccharides is also achieved with ultraviolet (UV) detection, the method utilizes a dual detection scheme (UV and MS in series) along with IPRP UPLC to simultaneously obtain quantification (UV) and characterization (MS) data for heparin oligosaccharides. The broad potential of this new method is further demonstrated for the analysis of a low-molecular-weight heparin (LMWH) preparation from porcine heparin. This approach will be of particular utility for profiling the molecular entities of heparin materials, as well as for structural variability comparison for samples from various sources.
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Affiliation(s)
- Catalin E Doneanu
- Biopharmaceutical Sciences, Waters Corporation, 34 Maple Street, Milford, Massachusetts 01757, USA
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Terry PD, Villinger F, Bubenik GA, Sitaraman SV. Melatonin and ulcerative colitis: evidence, biological mechanisms, and future research. Inflamm Bowel Dis 2009; 15:134-40. [PMID: 18626968 DOI: 10.1002/ibd.20527] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease that afflicts up to 1 million people in the US. Current treatments for UC are mostly nonspecific, not always effective, and often accompanied by serious side effects. Therefore, there is considerable interest in finding alternative and more tolerable treatments for this disease. Physiologic data suggest that melatonin is an important regulator of both inflammation and motility in the gastrointestinal tract, and data from in vitro studies, animal experiments, and limited studies in humans suggest that supplemental melatonin may have an ameliorative effect on colitis. In this review we summarize the evidence regarding melatonin as a possible therapeutic agent in UC and discuss possible biological mechanisms and directions for future research.
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Affiliation(s)
- Paul D Terry
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, USA.
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Travis SPL, Stange EF, Lémann M, Oresland T, Bemelman WA, Chowers Y, Colombel JF, D'Haens G, Ghosh S, Marteau P, Kruis W, Mortensen NJM, Penninckx F, Gassull M. European evidence-based Consensus on the management of ulcerative colitis: Current management. J Crohns Colitis 2008; 2:24-62. [PMID: 21172195 DOI: 10.1016/j.crohns.2007.11.002] [Citation(s) in RCA: 402] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2007] [Accepted: 11/23/2007] [Indexed: 02/08/2023]
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Li JH, Yu JP, Yu HG, Xu XM, Yu LL, Liu J, Luo HS. Melatonin reduces inflammatory injury through inhibiting NF-kappaB activation in rats with colitis. Mediators Inflamm 2006; 2005:185-93. [PMID: 16192667 PMCID: PMC1526481 DOI: 10.1155/mi.2005.185] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Proinflammatory mediators are important in the pathogenesis of IBD, which are regulated by activation of NF-kappaB. The aim of this study was to investigate whether melatonin reduces inflammatory injury and inhibits proinflammatory molecule and NF-kappaB in rats with colitis. Rat colitis model was established by TNBS enema. NF-kappaB p65, TNF-alpha, ICAM-1, and IkappaBalpha in colon tissue were examined by immunohistochemistry, EMSA, RT-PCR, and Western blot analysis. Expression of proinflammatory molecule and activation of NF-kappaB were upregulated and IkappaB level decreased in rats with colitis. Melatonin reduces colonic inflammatory injury through downregulating proinflammatory molecule mediated by NF-kappaB inhibition and blockade of IkappaBalpha degradation.
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Affiliation(s)
- Jun-Hua Li
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
| | - Jie-Ping Yu
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
| | - Hong-Gang Yu
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
- * Hong-Gang Yu;
| | - Xi-Ming Xu
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
| | - Liang-Liang Yu
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
| | - Jin Liu
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
| | - He-Sheng Luo
- Department of Gastroenterology, Renmin Hospital of
Wuhan University, Hubei Province, Wuhan 430060, China
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Shriver Z, Raguram S, Sasisekharan R. Glycomics: a pathway to a class of new and improved therapeutics. Nat Rev Drug Discov 2004; 3:863-73. [PMID: 15459677 DOI: 10.1038/nrd1521] [Citation(s) in RCA: 148] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Complex glycans that are located at the surface of cells, deposited in the extracellular matrix and attached to soluble signalling molecules have a crucial role in the phenotypic expression of cellular genotypes. However, owing to their structural complexity and some redundancy in terms of structures that elicit a function, the therapeutic potential of complex glycans has not been well exploited, with a few notable exceptions. This review outlines recent advances that promise to increase our ability to use complex glycans as therapeutics. Opportunities for the development of further structure-function relationships for these complex molecules are also discussed.
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Affiliation(s)
- Zachary Shriver
- Momenta Pharmaceuticals, 43 Moulton Street, Cambridge, Massachusetts 02138, USA
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