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Ma Y, Han L, Zhang S, Zhang X, Hou S, Gui L, Sun S, Yuan Z, Wang Z, Yang B. Insight into the differences of meat quality between Qinghai white Tibetan sheep and black Tibetan sheep from the perspective of metabolomics and rumen microbiota. Food Chem X 2023; 19:100843. [PMID: 37780244 PMCID: PMC10534161 DOI: 10.1016/j.fochx.2023.100843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/30/2023] [Accepted: 08/15/2023] [Indexed: 10/03/2023] Open
Abstract
The purpose of this study was to investigate the differences in meat quality between two local breeds of Tibetan sheep, the White Tibetan sheep and the Black Tibetan sheep in Qinghai, and to search for metabolic mechanisms that produce meat quality differences by analyzing differential metabolites and key rumen microorganisms. The meat quality results showed that one breed, SG73, was superior to the other (WG). Further investigation identified differences in the composition of muscle metabolites and rumen microorganisms between the two Tibetan sheep breeds. It also regulates muscle tenderness, water retention, fat content and the composition and content of AA and FA through two major metabolic pathways, AA metabolism and carbohydrate metabolism. These findings could be beneficial for the development of breeding strategies for Tibetan sheep in Qinghai in the future.
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Affiliation(s)
- Ying Ma
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Lijuan Han
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Shutong Zhang
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Xue Zhang
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Shengzhen Hou
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Linsheng Gui
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Shengnan Sun
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Zhenzhen Yuan
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Zhiyou Wang
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
| | - Baochun Yang
- College of Agriculture and Animal Husbandry, Qinghai University Xining, 810016, People’s Republic of China
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Gao F, Yao Q, Zhu J, Chen W, Feng X, Feng B, Wu J, Pacak K, Rosenblum J, Yu J, Zhuang Z, Cao H, Li L. A novel HIF2A mutation causes dyslipidemia and promotes hepatic lipid accumulation. Pharmacol Res 2023; 194:106851. [PMID: 37453673 PMCID: PMC10735172 DOI: 10.1016/j.phrs.2023.106851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
Hypoxia-inducible factor-2α (HIF-2α) is a transcription factor responsible for regulating genes related to angiogenesis and metabolism. This study aims to explore the effect of a previously unreported mutation c.C2473T (p.R825S) in the C-terminal transactivation domain (CTAD) of HIF-2α that we detected in tissue of patients with liver disease. We sequenced available liver and matched blood samples obtained during partial liver resection or liver transplantation performed for clinical indications including hepatocellular carcinoma and liver failure. In tandem, we constructed cell lines and a transgenic mouse model bearing the corresponding identified mutation in HIF-2α from which we extracted primary hepatocytes. Lipid accumulation was evaluated in these cells and liver tissue from the mouse model using Oil Red O staining and biochemical measurements. We identified a mutation in the CTAD of HIF-2α (c.C2473T; p.R825S) in 5 of 356 liver samples obtained from patients with hepatopathy and dyslipidemia. We found that introduction of this mutation into the mouse model led to an elevated triglyceride level, lipid droplet accumulation in liver of the mutant mice and in their extracted primary hepatocytes, and increased transcription of genes related to hepatic fatty acid transport and synthesis in the mutant compared to the control groups. In mutant mice and cells, the protein levels of nuclear HIF-2α and its target perilipin-2 (PLIN2), a lipid droplet-related gene, were also elevated. Decreased lipophagy was observed in mutant groups. Our study defines a subpopulation of dyslipidemia that is caused by this HIF-2α mutation. This may have implications for personalized treatment.
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Affiliation(s)
- Feiqiong Gao
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Qigu Yao
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Jiaqi Zhu
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Wenyi Chen
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Xudong Feng
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Bing Feng
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Jian Wu
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China
| | - Karel Pacak
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Building 10, Room 1-3140, 10 Center Drive, Bethesda, MD 20892, USA
| | - Jared Rosenblum
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Building 37 Room 100, 37 Convent Drive, Bethesda, MD 20892, USA
| | - Jiong Yu
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China.
| | - Zhengping Zhuang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Building 37 Room 100, 37 Convent Drive, Bethesda, MD 20892, USA.
| | - Hongcui Cao
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; Key Laboratory of Diagnosis and Treatment of Aging and Physic-chemical Injury Diseases of Zhejiang Province, 79 Qingchun Rd, Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China.
| | - Lanjuan Li
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou City 310003, China; National Clinical Research Center for Infectious Diseases, Hangzhou City 310003, China; Jinan Microecological Biomedicine Shandong Laboratory, Jinan City 250117, China
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Navarro Del Hierro J, Casado-Hidalgo G, Reglero G, Martin D. The hydrolysis of saponin-rich extracts from fenugreek and quinoa improves their pancreatic lipase inhibitory activity and hypocholesterolemic effect. Food Chem 2020; 338:128113. [PMID: 33092009 DOI: 10.1016/j.foodchem.2020.128113] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/12/2020] [Accepted: 09/13/2020] [Indexed: 01/18/2023]
Abstract
Saponins are promising compounds for ameliorating hyperlipidemia but scarce information exists about sapogenins, the hydrolyzed forms of saponins. Saponin-rich extracts and their hydrolysates from fenugreek (FE, HFE) and quinoa (QE, HQE), and saponin and sapogenin standards, were assessed on the inhibition of pancreatic lipase and interference on the bioaccessibility of cholesterol by in vitro digestion models. All extracts inhibited pancreatic lipase (IC50 between 1.15 and 0.59 mg/mL), although the hydrolysis enhanced the bioactivity of HQE (p = 0.014). The IC50 value significantly correlated to the saponin content (r = -0.82; p = 0.001). Only the hydrolyzed extracts showed a reduction of bioaccessible cholesterol (p < 0.001) higher than that of phytosterols (35% reduction). Sapogenin standards exhibited no bioactivities, protodioscin and hederacoside C slightly inhibited the lipase (around 10%) and protodioscin reduced the bioaccessible cholesterol (23% reduction, p = 0.035). The hydrolysis process of saponin-rich extracts enhances the bioactivity and allows developing multibioactive products against pancreatic lipase and cholesterol absorption simultaneously.
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Affiliation(s)
- Joaquín Navarro Del Hierro
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), 28049 Madrid, Spain; Sección Departamental de Ciencias de la Alimentación. Facultad de Ciencias. Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Gema Casado-Hidalgo
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), 28049 Madrid, Spain; Sección Departamental de Ciencias de la Alimentación. Facultad de Ciencias. Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Guillermo Reglero
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), 28049 Madrid, Spain; Sección Departamental de Ciencias de la Alimentación. Facultad de Ciencias. Universidad Autónoma de Madrid, 28049 Madrid, Spain; Imdea-Food Institute, CEI UAM+CSIC, 28049 Madrid, Spain
| | - Diana Martin
- Departamento de Producción y Caracterización de Nuevos Alimentos, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), 28049 Madrid, Spain; Sección Departamental de Ciencias de la Alimentación. Facultad de Ciencias. Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Schlich M, Lai F, Pireddu R, Pini E, Ailuno G, Fadda AM, Valenti D, Sinico C. Resveratrol proniosomes as a convenient nanoingredient for functional food. Food Chem 2019; 310:125950. [PMID: 31830712 DOI: 10.1016/j.foodchem.2019.125950] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/11/2019] [Accepted: 11/23/2019] [Indexed: 12/18/2022]
Abstract
Proniosomes are free-flowing powders composed of water-soluble carriers blended with surfactants, which form niosomes upon hydration. In this work, proniosomal formulations containing the natural antioxidant resveratrol (RSV) were prepared and fully characterized. A pre-formulation study on RSV-loaded niosomes was carried out to determine the most promising ratio between the two surfactants, Tween 20 and Span 60, in terms of entrapment efficiency and antioxidant activity. The optimized formulae were subsequently adapted to be prepared as proniosomes by the slurry method, including lactose or maltodextrin as carriers. The impact of surfactants and carriers properties on size, entrapment efficiency and release kinetics of proniosomes were evaluated. In vitro release of RSV in simulated gastric and intestinal media was determined, as well as the vesicular stability. Moreover, the biocompatibility of the formulations was determined on intestinal cells in vitro. Overall, the developed proniosomes provide promising nanoingredient for functional food, improving resveratrol stability and bioavailability.
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Affiliation(s)
- M Schlich
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - F Lai
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy.
| | - R Pireddu
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - E Pini
- DISMAB-Sezione di Chimica Organica ''A.Marchesini'', Università degli Studi di Milano, Milano, Italy
| | - Giorgia Ailuno
- Dipartimento di Farmacia (DIFAR), University of Genova, Genova 16148, Italy
| | - A M Fadda
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - D Valenti
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - C Sinico
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
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Randáková A, Dolejší E, Rudajev V, Zimčík P, Doležal V, El-Fakahany EE, Jakubík J. Role of membrane cholesterol in differential sensitivity of muscarinic receptor subtypes to persistently bound xanomeline. Neuropharmacology 2018; 133:129-144. [PMID: 29407765 DOI: 10.1016/j.neuropharm.2018.01.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 01/03/2018] [Accepted: 01/21/2018] [Indexed: 01/24/2023]
Abstract
Xanomeline (3-(Hexyloxy)-4-(1-methyl-1,2,5,6-tetrahydropyridin-3-yl)-1,2,5-thiadiazole) is a muscarinic agonist that is considered to be functionally selective for the M1/M4 receptor subtypes. Part of xanomeline binding is resistant to washing. Wash-resistant xanomeline activates muscarinic receptors persistently, except for the M5 subtype. Mutation of leucine 6.46 to isoleucine at M1 or M4 receptors abolished persistent activation by wash-resistant xanomeline. Reciprocal mutation of isoleucine 6.46 to leucine at the M5 receptor made it sensitive to activation by wash-resistant xanomeline. Lowering of membrane cholesterol made M1 and M4 mutants and M5 wild type receptors sensitive to activation by wash-resistant xanomeline. Molecular docking revealed a cholesterol binding site in the groove between transmembrane helices 6 and 7. Molecular dynamics showed that interaction of cholesterol with this binding site attenuates receptor activation. We hypothesize that differences in cholesterol binding to this site between muscarinic receptor subtypes may constitute the basis for xanomeline apparent functional selectivity and may have notable therapeutic implications. Differences in receptor-membrane interactions, rather than in agonist-receptor interactions, represent a novel possibility to achieve pharmacological selectivity. Our findings may be applicable to other G protein coupled receptors.
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Affiliation(s)
- Alena Randáková
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Eva Dolejší
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Vladimír Rudajev
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Pavel Zimčík
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Vladimír Doležal
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Esam E El-Fakahany
- Department of Experimental and Clinical Pharmacology, University of Minnesota College of Pharmacy, Minneapolis, MN 55455, USA
| | - Jan Jakubík
- Institute of Physiology Czech Academy of Sciences, 142 20 Prague, Czech Republic.
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De Leo V, Ruscigno S, Trapani A, Di Gioia S, Milano F, Mandracchia D, Comparelli R, Castellani S, Agostiano A, Trapani G, Catucci L, Conese M. Preparation of drug-loaded small unilamellar liposomes and evaluation of their potential for the treatment of chronic respiratory diseases. Int J Pharm 2018; 545:378-88. [PMID: 29678545 DOI: 10.1016/j.ijpharm.2018.04.030] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/15/2018] [Accepted: 04/16/2018] [Indexed: 01/08/2023]
Abstract
The aim of the present investigation was to evaluate the influence of liposome formulation on the ability of vesicles to penetrate a pathological mucus model obtained from COPD affected patients in order to assess the potential of such vesicles for the treatment of chronic respiratory diseases by inhalation. Therefore, Small Unilamellar Liposomes (PLAIN-LIPOSOMEs), Pluronic® F127-surface modified liposomes (PF-LIPOSOMEs) and PEG 2000PE-surface modified liposomes (PEG-LIPOSOMEs) were prepared using the micelle-to-vesicle transition (MVT) method and beclomethasone dipropionate (BDP) as model drug. The obtained liposomes showed diameters in the range of 40-65 nm, PDI values between 0.25 and 0.30 and surface electric charge essentially close to zero. The encapsulation efficiency was found to be dependent on the BDP/lipid ratio used and, furthermore, BDP-loaded liposomes were stable in size both at 37 °C and at 4 °C. All liposomes were not cytotoxic on H441 cell line as assessed by the MTT assay. The liposome uptake was evaluated through a cytofluorimetric assay that showed a non-significant reduction in the internalization of PEG-LIPOSOMEs as compared with PLAIN-LIPOSOMEs. The penetration studies of mucus from COPD patients showed that the PEG-LIPOSOMEs were the most mucus-penetrating vesicles after 27 h. In addition, PEG- and PF-LIPOSOMEs did not cause any effect on bronchoalveolar lavage fluid proteins after aerosol administration in the mouse. The results highlight that PEG-LIPOSOMEs show the most interesting features in terms of penetration through the pathologic sputum, uptake by airway epithelial cells and safety profile.
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Nkanga CI, Krause RW, Noundou XS, Walker RB. Preparation and characterization of isoniazid-loaded crude soybean lecithin liposomes. Int J Pharm 2017; 526:466-473. [PMID: 28461265 DOI: 10.1016/j.ijpharm.2017.04.074] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/24/2017] [Accepted: 04/28/2017] [Indexed: 11/16/2022]
Abstract
Tuberculosis (TB) is a poverty related infectious disease that is rapidly giving rise to public health concerns. Lengthy drug administration and frequent adverse side-effects associated with TB treatment make anti-tubercular drugs (ATDs) good candidates for drug delivery studies. This work aimed to formulate and prepare liposomes as a cost-effective option for ATD delivery. Liposomes were prepared by film hydration using crude soybean lecithin (CL) and not pure phospholipids as in the normal practice. Cholesterol was also used (up to 25% mass ratio), and isoniazid (INH) was encapsulated as model drug using a freeze-thaw loading technique. Purified soybean lecithin (PL) was also used for comparative purposes, under the same conditions. INH-loaded liposomes were characterized for particle size, Zeta Potential (ZP), encapsulation efficiency (EE) and drug release. Physicochemical properties were investigated using thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction and Fourier transform infrared. INH-loaded CL-based liposomes showed high EE (79±2.45%). The average particle size (813.00±9.21nm) and ZP (-42.80±4.31mV) of this formulation are promising for the treatment of TB by pulmonary delivery. These findings suggest the possibility of encapsulating ATDs in liposomes made of crude soybean lecithin that is cheap and readily available.
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Affiliation(s)
- Christian Isalomboto Nkanga
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa
| | - Rui Werner Krause
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa.
| | - Xavier Siwe Noundou
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa
| | - Roderick Bryan Walker
- Division of Pharmaceutics, Faculty of Pharmacy, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa
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Bochicchio S, Dapas B, Russo I, Ciacci C, Piazza O, De Smedt S, Pottie E, Barba AA, Grassi G. In vitro and ex vivo delivery of tailored siRNA-nanoliposomes for E2F1 silencing as a potential therapy for colorectal cancer. Int J Pharm 2017; 525:377-387. [PMID: 28189855 DOI: 10.1016/j.ijpharm.2017.02.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/18/2017] [Accepted: 02/07/2017] [Indexed: 02/01/2023]
Abstract
Tailored developed nanoliposomes loaded with a siRNA against the transcription factor E2F1 (siE2F1), were produced and delivered to human colorectal adenocarcinoma cell lines and to intestinal human biopsies. siE2F1 loaded nanoliposomes were produced through a dedicated ultrasound assisted technique producing particles with about 40nm size (Small Unilamellar Vesicles, SUVs) and 100% siRNA encapsulation efficiency. Compared to other production methods, the one proposed here can easily produce particles in the nanometric scale by suitable ultrasonic duty cycle treatments. Furthermore, SUVs have a high degree of size homogeneity, a relevant feature for uniform delivery behaviour. siE2F1-loaded SUVs demonstrated a very low cytotoxicity in cells when compared to a commercial transfection agent. Moreover, SUVs loaded with siE2F1 were effective in the down regulation of the target in cultured colon carcinoma cells and in the consequent reduction of cell growth. Finally, a remarkable uptake and target silencing efficiencies were observed in cultured human biopsy of colonic mucosa. In conclusion, whereas further studies in more complex models are required, the siE2F1-SUVs generated have the potential to contribute to the development of novel effective inflammatory bowel diseases-associated colorectal cancer therapies for a future personalized medicine.
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Affiliation(s)
- Sabrina Bochicchio
- Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy; Dipartimento di Ingegneria Industriale, University of Salerno, Fisciano, SA, Italy
| | - Barbara Dapas
- Dipartimento di Scienze della Vita, University of Trieste, Italy
| | - Ilaria Russo
- Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana", University of Salerno, Fisciano, SA, Italy
| | - Carolina Ciacci
- Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana", University of Salerno, Fisciano, SA, Italy
| | - Ornella Piazza
- Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana", University of Salerno, Fisciano, SA, Italy
| | | | - Eline Pottie
- Department of Pharmaceutics, University of Gent, Belgium
| | - Anna Angela Barba
- Dipartimento di Farmacia, University of Salerno, Fisciano, SA, Italy.
| | - Gabriele Grassi
- Dipartimento di Scienze della Vita, University of Trieste, Italy; Dipartimento di Scienze Mediche, Chirurgiche e della Salute, Ospedale di Cattinara, University of Trieste, Italy
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9
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Lu T, Ten Hagen TLM. Inhomogeneous crystal grain formation in DPPC-DSPC based thermosensitive liposomes determines content release kinetics. J Control Release 2016; 247:64-72. [PMID: 28042084 DOI: 10.1016/j.jconrel.2016.12.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/09/2016] [Accepted: 12/16/2016] [Indexed: 10/20/2022]
Abstract
Thermosensitive liposomes (TSL) receive attention due to their rapid externally controlled drug release at transition temperature in combination with hyperthermia. This rapid release feature of TSL occurs when the liposome membrane is going through a phase change which results in numerous interfaces, at so-called crystal grain boundaries. Based on experience with TSLs, our group found that thermosensitive liposomes formulated by binary compositions of DPPC and DSPC at proper ratios are able to exhibit rapid release without incorporation of release-promoting components. The aim of this study was to understand the mechanism of rapid release from bi-component DPPC-DSPC based TSL. Based on the investigation of a series of TSLs formulated by different DPPC-DSPC ratios, and through the analysis of binary-phase diagrams of DPPC-DSPC TSLs, we conclude that inhomogeneous crystal grains are formed in bi-component TSL membranes rather than mono-component, thereby facilitating content release. The resulting inhomogeneous membrane pattern is affected by DPPC/DSPC ratio, i.e. this determines the number of interfaces between solid and liquid phases at transition temperature, which can be diminished by addition of cholesterol. At appropriate DPPC/DSPC ratio, substantive solid/liquid interfaces can be generated not only between membrane domains but also between crystal grains in each domain of the liposome membranes, therefore improving content release from the TSL at transition temperatures.
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Affiliation(s)
- Tao Lu
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands.
| | - Timo L M Ten Hagen
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands.
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Basiri L, Rajabzadeh G, Bostan A. α-Tocopherol-loaded niosome prepared by heating method and its release behavior. Food Chem 2017; 221:620-8. [PMID: 27979250 DOI: 10.1016/j.foodchem.2016.11.129] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 11/20/2016] [Accepted: 11/23/2016] [Indexed: 11/21/2022]
Abstract
α-Tocopherol-loaded niosome was developed using modified heating method. The influence of surfactants (Span60 and Tween60) in different mole ratios, presence or absence of cholesterol (Chol) and dicetyl phosphate (DCP) as well as different concentration of α-tocopherol (α-TOC) on mean size, polydispersity index, zeta potential and entrapment efficiency (EE) was evaluated. The results showed that α-TOC loaded niosomes exhibited a small mean size (73.85±0.6-186±0.58nm), narrow size distribution and high EE (61.13±0.52-98.92±0.92). By decreasing the HLB, the EE and stability of the niosomes increased. The DCP and Chol improved the physicochemical properties of niosomes. 3:1 mole ratio of Span 60:Tween 60, 4mg/ml of α-TOC and 25:12.5:2.5 mole ratio of surfactant:Chol:DCP was the optimum formulation in the encapsulation of α-TOC applying niosome system. The niosomes had sustained release profile in the simulated gastric and intestinal fluid.
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11
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Mostafa DK, Nasra RA, Zahran N, Ghoneim MT. Pleiotropic protective effects of Vitamin D against high fat diet-induced metabolic syndrome in rats: One for all. Eur J Pharmacol 2016; 792:38-47. [PMID: 27789220 DOI: 10.1016/j.ejphar.2016.10.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 10/20/2016] [Accepted: 10/21/2016] [Indexed: 12/17/2022]
Abstract
Several lines of evidence point to the association of vitamin D deficiency with the different components of metabolic syndrome. Yet, the effect of vitamin D supplementation on metabolic syndrome is not clearly elucidated. Herein, we tested the hypothesis that administration of vitamin D, either alone or in combination of metformin can improve metabolic and structural derangements associated with metabolic syndrome. Fifty wistar rats were randomly assigned to serve either as normal control (10 rats) or metabolic syndrome rats, by feeding them with a standard or a high fat diet (HFD), respectively. Metabolic syndrome rats were further assigned to receive either vehicle, Metformin (100mg/Kg orally), vitamin D (6ng/Kg SC.) or both, daily for 8 weeks. Body weight, blood pressure, serum glucose, insulin, insulin resistance, lipid profile, oxidative stress, serum uric acid and Ca+2 were assessed at the end of the study. Histopathological examination of hepatic, renal and cardiac tissues were also performed. Treatment with vitamin D was associated with a significant improvement of the key features of metabolic syndrome namely obesity, hypertension and dyslipidaemia with a neutral effect on Ca+2 level. When combined with metformin, most of the other metabolic abnormalities were ameliorated. Furthermore, a significant attenuation of the associated hepatic steatosis was observed with vitamin D as well as vitamin D/metformin combination. In conclusion, vitamin D can improve hypertension, metabolic and structural abnormalities induced by HFD, and it provides additional benefits when combined with metformin. Therefore, vitamin D could represent a feasible therapeutic option for prevention of metabolic syndrome.
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Affiliation(s)
- Dalia K Mostafa
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Rasha A Nasra
- Department of Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Noha Zahran
- Department of Histology and cellular Biology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mohammed T Ghoneim
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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12
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Zhong LJ, Hua YL, Ji P, Yao WL, Zhang WQ, Li J, Wei YM. Evaluation of the anti-inflammatory effects of volatile oils from processed products of Angelica sinensis radix by GC-MS-based metabolomics. J Ethnopharmacol 2016; 191:195-205. [PMID: 27292195 DOI: 10.1016/j.jep.2016.06.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 06/04/2016] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Roots of Angelica sinensis (Oliv.) Diels (AS) a commonly used herbal, always act as an anti-inflammatory drug in Chinese traditional therapy. In clinical use, AS is always processed before being used for the reason that processing can increase its therapeutic effect. Recent studies have shown that volatile oil of AS (VOAS), an important component in AS, has evident anti-inflammatory activities. AIM OF THE STUDY In this study, our aim is to evaluate the anti-inflammatory effects of volatile oils from processed products of AS. MATERIALS AND METHODS In this paper, volatile oils from stir-fried AS (C-VOAS), parched AS with alcohol (J-VOAS), parched AS with soil (T-VOAS), and parched AS with sesame oil (Y-VOAS) were applied to intervene the carrageenan-induced acute inflammation model rats. GC-MS based metabolomics was utilized to determine different metabolites in the inflammatory exudate and plasma samples. RESULTS The results showed that VOASs could significantly inhibit the release of PGE2, HIS, 5-HT and TNF-α, among which C-VOAS and J-VOAS expressed better effect. Otherwise, 14 potential biomarkers were identified respectively in inflammatory exudate and plasma, which changed highly significantly (P<0.01) in C-VOAS and J-VOAS groups. CONCLUSIONS We inferred that the anti-inflammatory effect of C-VOAS and J-VOAS were superior to other VOASs.
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Affiliation(s)
- Li-Jia Zhong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Yong-Li Hua
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Peng Ji
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Wan-Ling Yao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Wen-Quan Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Jian Li
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China
| | - Yan-Ming Wei
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu 730070, People's Republic of China.
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Lin S, Lee WYW, Huang M, Fu Z, Liang Y, Wu H, Xu L, Suen CW, Huang J, Wu T, Cui L, Li G. Aspirin prevents bone loss with little mechanical improvement in high-fat-fed ovariectomized rats. Eur J Pharmacol 2016; 791:331-338. [PMID: 27615444 DOI: 10.1016/j.ejphar.2016.09.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/08/2016] [Accepted: 09/08/2016] [Indexed: 12/29/2022]
Abstract
Obesity and osteoporosis are often concurrently happened in the menopausal women. Obesity in menopausal women is not only related to a high risk of cardiovascular disease, but also results in a detrimental effect on bone health. This study aimed to investigate the effects of aspirin, a popular anti-thrombosis drug, on bone quantity and quality in the high-fat-fed animal model. Adult female rats were subjected to either sham operations or ovariectomized operations. The ovariectomized rats were orally administered with deionized water or standardized high fat emulsion with or without aspirin. All rats were injected with calcein before killed for the purpose of double in vivo labeling. Biochemistry, histomorphometry, micro-computed tomography analysis, mechanical test, and component analysis were performed after 12 weeks. In vitro cell culture was also performed to observe the effect of aspirin in osteogenesis. We found that high fat remarkably impaired bone formation and bone biomechanics. Aspirin treatment significantly prevented bone loss by increasing bone formation. In vitro studies also validated the enhancement of osteogenic differentiation. However, aspirin presented no significant improvement in bone mechanical properties. Component analysis shown aspirin could significantly increase the content of mineral, but had limited effect on the content of collagen. In conclusion, aspirin is beneficial for the prevention of bone loss; meanwhile, it may cause an imbalance in the components of bone which may weaken the mechanical properties. The current study provided further evidence that aspirin might not be powerful for the prevention of fracture in osteoporotic patients.
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Affiliation(s)
- Sien Lin
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China; Department of Orthopaedics and Traumatology and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Wayne Y W Lee
- Department of Orthopaedics and Traumatology and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Meiling Huang
- Department of Rehabilitation, The Second People's Hospital of Shenzhen, Shenzhen, Guangdong, China
| | - Ziwei Fu
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Yanlong Liang
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Haiyou Wu
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Liangliang Xu
- Department of Orthopaedics and Traumatology and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Chun Wai Suen
- Department of Orthopaedics and Traumatology and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Jianping Huang
- Department of Stomatology, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Tie Wu
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Liao Cui
- Department of Pharmacology, Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Gang Li
- Department of Orthopaedics and Traumatology and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
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14
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Pei T, Zheng C, Huang C, Chen X, Guo Z, Fu Y, Liu J, Wang Y. Systematic understanding the mechanisms of vitiligo pathogenesis and its treatment by Qubaibabuqi formula. J Ethnopharmacol 2016; 190:272-287. [PMID: 27265513 DOI: 10.1016/j.jep.2016.06.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 05/16/2016] [Accepted: 06/01/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vitiligo is a depigmentation disorder, which results in substantial cosmetic disfigurement and poses a detriment to patients' physical as well as mental. Now the molecular pathogenesis of vitiligo still remains unclear, which leads to a daunting challenge for vitiligo therapy in modern medicine. Herbal medicines, characterized by multi-compound and multi-target, have long been shown effective in treating vitiligo, but their molecular mechanisms of action also remain ambiguous. MATERIALS AND METHODS Here we proposed a systems pharmacology approach using a clinically effective herb formula as a tool to detect the molecular pathogenesis of vitiligo. This study provided an integrative analysis of active chemicals, drug targets and interacting pathways of the Uygur medicine Qubaibabuqi formula for curing Vitiligo. RESULTS The results show that 56 active ingredients of Qubaibabuqi interacting with 83 therapeutic proteins were identified. And Qubaibabuqi probably participate in immunomodulation, neuromodulation and keratinocytes apoptosis inhibition in treatment of vitiligo by a synergistic/cooperative way. CONCLUSIONS The drug-target network-based analysis and pathway-based analysis can provide a new approach for understanding the pathogenesis of vitiligo and uncovering the molecular mechanisms of Qubaibabuqi, which will also facilitate the application of traditional Chinese herbs in modern medicine.
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Affiliation(s)
- Tianli Pei
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China; Key Laboratory of Resource Biology and Biotechnology in Western China, Northwest University, Ministry of Education, China
| | - Chunli Zheng
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Chao Huang
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Xuetong Chen
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Zihu Guo
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Yingxue Fu
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China
| | - Jianling Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Northwest University, Ministry of Education, China
| | - Yonghua Wang
- Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China.
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15
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Ghate VM, Lewis SA, Prabhu P, Dubey A, Patel N. Nanostructured lipid carriers for the topical delivery of tretinoin. Eur J Pharm Biopharm 2016; 108:253-261. [PMID: 27519827 DOI: 10.1016/j.ejpb.2016.07.026] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 07/23/2016] [Accepted: 07/31/2016] [Indexed: 11/20/2022]
Abstract
Cosmetic skin care products currently in the market demonstrate an increasing trend toward antiaging products. Selection of the right formulation approach is the key to successful consumer acceptance. Nanostructured lipid carriers (NLCs) for dermal application can render added benefits to the formulation. Tretinoin a derivative of vitamin A, is a retinoid with anti-aging and anti-acne potential. The present study was aimed at formulating NLCs of tretinoin for reducing the skin irritation potential, increasing the drug loading capacity and prolonging the duration of action. The NLCs were optimized using the response surface methodology based on the particle size. Preliminary study, suggested the use of stearic acid, oleic acid, Tween 80 and Span 60 as solid lipid, liquid lipid and surfactants respectively formed a stable dispersion. NLCs of tretinoin were prepared by hot melt microemulsion and hot melt probe sonication methods. The properties of the optimized NLCs such as morphology, size, Zeta potential, stability and in vitro drug release were investigated. Tretinoin loaded NLCs in carbopol gel showed a sustained release pattern with isopropyl alcohol as the receptor fluid compared to the marketed gel using Franz diffusion cells. Eight prepared gel formulations tested were found to follow the Higuchi model of drug release. Stability studies indicated that the formulations stored at refrigeration and room temperature showed no noticeable differences in the drug content and release profiles in vitro, after a period of 4 weeks. In vivo skin irritation test on male Wister rats indicated no irritation or erythema after application of the NLCs loaded gel repeated for a period of 7 days compared to the application of marketed tretinoin gel which showed irritation and slight erythema within 3 days. The results showed that the irritation potential of tretinoin was reduced, the drug loading was increased and the drug release was prolonged by the incorporation into the NLCs.
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Affiliation(s)
- Vivek M Ghate
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka, India.
| | - Shaila A Lewis
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, Karnataka, India
| | - Prabhakara Prabhu
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Kenjar, Mangalore 570142, Karnataka, India
| | - Akhilesh Dubey
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Kenjar, Mangalore 570142, Karnataka, India
| | - Nilkumar Patel
- Department of Pharmaceutics, Shree Devi College of Pharmacy, Kenjar, Mangalore 570142, Karnataka, India
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16
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Duong S, Strobel N, Buddhadasa S, Stockham K, Auldist M, Wales B, Orbell J, Cran M. Rapid measurement of phytosterols in fortified food using gas chromatography with flame ionization detection. Food Chem 2016; 211:570-6. [PMID: 27283669 DOI: 10.1016/j.foodchem.2016.05.104] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 04/06/2016] [Accepted: 05/16/2016] [Indexed: 11/30/2022]
Abstract
A novel method for the measurement of total phytosterols in fortified food was developed and tested using gas chromatography with flame ionization detection. Unlike existing methods, this technique is capable of simultaneously extracting sterols during saponification thus significantly reducing extraction time and cost. The rapid method is suitable for sterol determination in a range of complex fortified foods including milk, cheese, fat spreads, oils and meat. The main enhancements of this new method include accuracy and precision, robustness, cost effectiveness and labour/time efficiencies. To achieve these advantages, quantification and the critical aspects of saponification were investigated and optimised. The final method demonstrated spiked recoveries in multiple matrices at 85-110% with a relative standard deviation of 1.9% and measurement uncertainty value of 10%.
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Affiliation(s)
- Samantha Duong
- Australian Government, National Measurement Institute (NMI), 1/153 Bertie Street, Port Melbourne, VIC 3207, Australia; Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia
| | - Norbert Strobel
- Australian Government, National Measurement Institute (NMI), 1/153 Bertie Street, Port Melbourne, VIC 3207, Australia
| | - Saman Buddhadasa
- Australian Government, National Measurement Institute (NMI), 1/153 Bertie Street, Port Melbourne, VIC 3207, Australia
| | - Katherine Stockham
- Australian Government, National Measurement Institute (NMI), 1/153 Bertie Street, Port Melbourne, VIC 3207, Australia
| | - Martin Auldist
- Department of Environment and Primary Industry (DEPI), 1301 Hazeldean Road, Ellinbank, VIC 3821, Australia
| | - Bill Wales
- Department of Environment and Primary Industry (DEPI), 1301 Hazeldean Road, Ellinbank, VIC 3821, Australia
| | - John Orbell
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia
| | - Marlene Cran
- Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia.
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17
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Corrêia Gomes D, Takahashi JA. Sequential fungal fermentation-biotransformation process to produce a red pigment from sclerotiorin. Food Chem 2016; 210:355-61. [PMID: 27211658 DOI: 10.1016/j.foodchem.2016.04.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 06/02/2015] [Accepted: 04/16/2016] [Indexed: 11/23/2022]
Abstract
The fungus Penicillium sclerotiorum produces sclerotiorin, an orange compound closely related to the useful food coloring pigments produced by Monascus species. The high productivity, together with several biological activities reported for sclerotiorin highlights its potential application in food industry. In this work, sclerotiorin was obtained as the major metabolite produced in liquid fermentation by P. sclerotiorum standing for 30% of the fungal dry extract. Modulation of sclerotiorin color was accomplished by biotransformation using Beauveria bassiana generating a red derivative with 13.8% yield. Color modification was caused by fungal-mediated substitution of oxygen by nitrogen in the pyrone ring changing the molecule's chromophore. A derivative, 1-methyl sclerotiorin was synthesized from sclerotiorin using diazomethane and fed to B. bassiana. In this case, substituent at C-1 avoided heteroatom substitution. Sclerotiorin derivatives obtained in the present show the great potential of sclerotiorin derivatives as food colorants.
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18
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Tan X, Pang X, Lei M, Ma M, Guo F, Wang J, Yu M, Tan F, Li N. An efficient dual-loaded multifunctional nanocarrier for combined photothermal and photodynamic therapy based on copper sulfide and chlorin e6. Int J Pharm 2016; 503:220-8. [PMID: 26988376 DOI: 10.1016/j.ijpharm.2016.03.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 02/16/2016] [Accepted: 03/11/2016] [Indexed: 02/01/2023]
Abstract
The therapeutic effectiveness of photodynamic therapy (PDT) was hampered by the poor water solubility and instability in physiological conditions of the photosensitizers. Here, we designed folate conjugated thermosensitive liposomes (TSL) as the nanocarrier to improve the solubility, stability and biocompatibility of photosensitizer Chlorin e6 (Ce6). Based on the photothermal effect, we combined copper sulfide (CuS) as the photothermal agent to realize heat-triggered Ce6 release as well as synergistic effect of photothermal and photodynamic therapy. In vitro MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay showed that Ce6-CuS-TSL had low dark toxicity, while performed excellent phototoxicity under the combined 660 and 808 nm laser irradiation compared to any single laser irradiation alone. Moreover, in vivo combination therapy study revealed that Ce6-CuS-TSL inhibited tumor growth to a great extent without evident side effect under the laser irradiation. All detailed evidence demonstrated a considerable potential of Ce6-CuS-TSL for synergistic cancer treatment.
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Affiliation(s)
- Xiaoxiao Tan
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Xiaojuan Pang
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Mingzhu Lei
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Man Ma
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Fang Guo
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Jinping Wang
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Meng Yu
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Fengping Tan
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China
| | - Nan Li
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, PR China.
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Zahmatkeshan M, Gheybi F, Rezayat SM, Jaafari MR. Improved drug delivery and therapeutic efficacy of PEgylated liposomal doxorubicin by targeting anti-HER2 peptide in murine breast tumor model. Eur J Pharm Sci 2016; 86:125-35. [PMID: 26972276 DOI: 10.1016/j.ejps.2016.03.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/29/2016] [Accepted: 03/09/2016] [Indexed: 12/14/2022]
Abstract
Targeted cancer therapy is a powerful therapeutic strategy to management of cancer. HER2 as an anticancer target has long been studied. Its overexpression plays an important role in the pathogenesis and progressiveness of breast and other cancers. To establish efficient and reliable drug delivery to HER2-overexpressing cells, the authors of this study have developed anti-HER2 (ErbB2) peptide-liposomal formulations of doxorubicin (DOX) by an engineered breast tumor-targeting peptide ligand, AHNP, Anti-HER2/neu peptide, (FCDGFYACYADV) with three glycine amino acids as spacer before its original sequencing. Towards this goal, PEGylated liposome doxorubicin (PLD) bearing different ligand densities of AHNP was prepared and characterized for their size, zeta potential and peptide conjugation. The AHNP functionalization and density effects on breast tumor cell uptake, selective cytotoxicity, prevention of tumor growth and the tissue biodistribution of encapsulated DOX were studied in mice bearing TUBO breast cancer tumor model. The findings demonstrated that increasing the ligand density of AHNP increases cytotoxicity and cell-uptake in SKBR3 and TUBO cells which overexpress HER2 but not in MDA-MB-231with low HER2 expression profile. The anticancer activity was also superior for targeted liposomal DOX with more AHNP densities. Overall, the results showed that optimum AHNP density functionalization of PLD can significantly improve selectivity and the therapeutic index of liposomal DOX in the treatment of HER2 positive breast cancer and merits further investigation.
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Affiliation(s)
- Masoumeh Zahmatkeshan
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 1417755469, Iran
| | - Fatemeh Gheybi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 1417755469, Iran
| | - Seyed Mahdi Rezayat
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 1417755469, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran.
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20
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Zeng C, Jiang W, Tan M, Yang X, He C, Huang W, Xing J. Optimization of the process variables of tilianin-loaded composite phospholipid liposomes based on response surface-central composite design and pharmacokinetic study. Eur J Pharm Sci 2016; 85:123-31. [PMID: 26883760 DOI: 10.1016/j.ejps.2016.02.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 02/11/2016] [Accepted: 02/11/2016] [Indexed: 12/23/2022]
Abstract
Tilianin is attracting considerable attention because of its antihypertensive, anti-atherogenic and anticonvulsive efficacy. However, tilianin has poor oral bioavailability. Thus, to improve the oral bioavailability of tilianin, composite phospholipid liposomes were adopted in this work as a novel nanoformulation. The aim was to develop and formulate tilianin composite phospholipid liposomes (TCPLs) through ethanol injection and to apply the response surface-central composite design to optimize the tilianin composite phospholipid liposome formulation. The independent variables were the amount of phospholipids (X1), amount of cholesterol (X2) and weight ratio of phospholipid to drug (X3); the depended variables were particle size (Y1) and encapsulation efficiency (EE) (Y2) of TCPLs. Results indicated that the optimum preparation conditions were as follows: phospholipid amount, 500 mg, cholesterol amount, 50mg and phospholipid/drug ratio, 25. These variables were also the major contributing variables for particle size (101.4 ± 6.1 nm), higher EE (90.28% ± 1.36%), zeta potential (-18.3 ± 2.6 mV) and PDI (0.122 ± 0.027). Subsequently, differential scanning calorimetry techniques were used to investigate the molecular interaction in TCPLs, and the in vitro drug release of tilianin and TCPLs was investigated by the second method of dissolution in the Chinese Pharmacopoeia (Edition 2015). Furthermore, pharmacokinetics in Sprague Dawley rats was evaluated using a rat jugular vein intubation tube. Results demonstrated that the Cmax of TCPLs became 5.7 times higher than that of tilianin solution and that the area under the curve of TCPLs became about 4.6-fold higher than that of tilianin solution. Overall, our results suggested that the prepared tilianin composite phospholipid liposome formulations could be used to improve the bioavailability of tilianin after oral administration.
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Affiliation(s)
- Cheng Zeng
- Institute of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830054, PR China; Xinjiang Institute of Materia Medica, Urumqi 830004, PR China
| | - Wen Jiang
- Department of pharmacy, The Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, PR China
| | - Meie Tan
- Xinjiang Institute of Materia Medica, Urumqi 830004, PR China
| | - Xiaoyi Yang
- Xinjiang Institute of Materia Medica, Urumqi 830004, PR China
| | - Chenghui He
- Xinjiang Institute of Materia Medica, Urumqi 830004, PR China
| | - Wei Huang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Pharmaceutics, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China.
| | - Jianguo Xing
- Xinjiang Institute of Materia Medica, Urumqi 830004, PR China.
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Jiang Y, Chen L, Wang H, Narisi B, Chen B. Li-Gan-Shi-Liu-Ba-Wei-San improves non-alcoholic fatty liver disease through enhancing lipid oxidation and alleviating oxidation stress. J Ethnopharmacol 2015; 176:499-507. [PMID: 26571089 DOI: 10.1016/j.jep.2015.11.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 09/18/2015] [Accepted: 11/06/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mongolian medicine is an important constituent of traditional Chinese medicine. Its representative prescription, Li-Gan-Shi-Liu-Ba-Wei-San (LGSLBWS), is widely used for long-term treatment of chronic liver disease and nonalcoholic fatty liver disease (NAFLD). AIM OF THE STUDY This study explored the effects and mechanism of LGSLBWS on NAFLD. MATERIALS AND METHODS NAFLD rat model was established with high-fat diet. The effects of LGSLBWS on lipid metabolism, liver function, and hepatic morphology were observed in NAFLD rats. Superoxide dismutase (SOD) and malondialdehyde (MDA) contents in the liver, as well as the expression levels of peroxisome proliferator-activated receptor (PPAR)α, PPARβ, inhibitor of nuclear factor κB α(IκBα), and inducible nitric oxide synthase (iNOS) were all detected. Finally, the effects of LGSLBWS on fatty acid oxidation, PPARα, PPARβ, IκBα, and iNOS were determined in HepG2 cells. RESULTS LGSLBWS significantly reduced the fat deposition in the liver and the serum aspartate aminotransferase levels in NAFLD rats. Serum triglyceride and free fatty acid levels were reduced by LGSLBWS. Total cholesterol and triglyceride contents in the liver were also downregulated. SOD and MDA levels were increased and decreased by LGSLBWS, respectively. LGSLBWS can significantly promote fatty acid oxidation of HepG2 cells. Upregulation of PPARα, PPARβ, and IκBα and downregulation of iNOS by LGSLBWS were both observed in the NAFLD model and HepG2 cells. CONCLUSIONS LGSLBWS can significantly improve NAFLD by enhancing fatty acid oxidation and alleviating oxidative stress.
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Affiliation(s)
- Youzhao Jiang
- Department of Endocrinology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Liu Chen
- Department of Endocrinology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Hui Wang
- Department of Endocrinology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - Bao Narisi
- Department of Basic Theory of Mongolian medicine, Institute of Mongolian Medicine, Inner Mongolia Medical University, Hohhot 010110, China
| | - Bing Chen
- Department of Endocrinology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.
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22
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Lu T, Lokerse WJM, Seynhaeve ALB, Koning GA, Ten Hagen TLM. Formulation and optimization of idarubicin thermosensitive liposomes provides ultrafast triggered release at mild hyperthermia and improves tumor response. J Control Release 2015; 220:425-437. [PMID: 26541464 DOI: 10.1016/j.jconrel.2015.10.056] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/28/2015] [Accepted: 10/29/2015] [Indexed: 11/27/2022]
Abstract
Drug delivery through thermosensitive liposomes (TSL) in combination with hyperthermia (HT) has shown great potential. HT can be applied locally forcing TSL to release their content in the heated tumor resulting in high peak concentrations. To perform optimally the drug is ideally released fast (seconds) and taken up rapidly by tumor cells. The aim of this study was to develop a novel thermosensitive liposome formulation of the anthracycline idarubicin (IDA-TSL). The hydrophobicity of idarubicin may improve its release from liposomes and subsequently rapid cellular uptake when combined mild hyperthermia. Here, we investigated a series of parameters to optimize IDA-TSL formulation. The results show that the optimal formulation for IDA-TSL is DPPC/DSPC/DSPE-PEG (6/3.5/0.5 mol%), with ammonium EDTA of 6.5 pH as loading buffer and a size of ~85 nm. In vitro studies demonstrated minimal leakage of ~20% in FCS at 37 °C for 1h, while an ultrafast and complete triggered release of IDA was observed at 42 °C. On tumor cells IDA-TSL showed comparable cytotoxicity to free IDA at 42 °C, but low cytotoxicity at 37 °C. Intravital microscopy imaging demonstrated an efficient in vivo intravascular triggered drug release of IDA-TSL under mild hyperthermia, and a subsequent massive IDA uptake by tumor cells. In animal efficacy studies, IDA-TSL plus mild HT demonstrated prominent tumor growth inhibition and superior survival rate over free IDA with HT or a clinically used Doxil treatment. These results suggest beneficial potential of IDA-TSL combined with local mild HT.
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Key Words
- Cholesterol (PubChem CID: 5997)
- DPPC (PubChem CID: 160,339)
- DSPC (PubChem CID: 94,190)
- DSPE-PEG (PubChem CID: 86,278,269)
- Diammonium EDTA (PubChem CID: 13,847,684)
- Diammonium oxalate (PubChem CID: 14,213)
- Diammonium sulfate (PubChem CID: 6,097,028)
- HEPES (PubChem CID: 23,831)
- Idarubicin
- Idarubicin hydrochloride (PubChem CID: 636,362)
- Mild hyperthermia
- Sodium citrate (PubChem CID: 6224)
- Thermosensitive liposome
- Triggered drug release
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Affiliation(s)
- Tao Lu
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Wouter J M Lokerse
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Ann L B Seynhaeve
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Gerben A Koning
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands
| | - Timo L M Ten Hagen
- Laboratory Experimental Surgical Oncology, Section Surgical Oncology, Department of Surgery, Erasmus MC, Rotterdam, The Netherlands.
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Zotti M, De Pascali SA, Del Coco L, Migoni D, Carrozzo L, Mancinelli G, Fanizzi FP. (1)H NMR metabolomic profiling of the blue crab (Callinectes sapidus) from the Adriatic Sea (SE Italy): A comparison with warty crab (Eriphia verrucosa), and edible crab (Cancer pagurus). Food Chem 2016; 196:601-9. [PMID: 26593533 DOI: 10.1016/j.foodchem.2015.09.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 09/07/2015] [Accepted: 09/24/2015] [Indexed: 11/23/2022]
Abstract
The metabolomic profile of blue crab (Callinectes sapidus) captured in the Acquatina lagoon (SE Italy) was compared to an autochthonous (Eriphia verrucosa) and to a commercial crab species (Cancer pagurus). Both lipid and aqueous extracts of raw claw muscle were analyzed by (1)H NMR spectroscopy and MVA (multivariate data analysis). Aqueous extracts were characterized by a higher inter-specific discriminating power compared to lipid fractions. Specifically, higher levels of glutamate, alanine and glycine characterized the aqueous extract of C. sapidus, while homarine, lactate, betaine and taurine characterized E. verrucosa and C. pagurus. On the other hand, only the signals of monounsaturated fatty acids distinguished the lipid profiles of the three crab species. These results support the commercial exploitation and the integration of the blue crab in human diet of European countries as an healthy and valuable seafood.
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Yang Z, Liu J, Gao J, Chen S, Huang G. Chitosan coated vancomycin hydrochloride liposomes: Characterizations and evaluation. Int J Pharm 2015; 495:508-15. [PMID: 26325316 DOI: 10.1016/j.ijpharm.2015.08.085] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/11/2015] [Accepted: 08/26/2015] [Indexed: 11/21/2022]
Abstract
The present work evaluated the feasibility of chitosan coated liposomes (c-Lips) for the intravenous delivery of vancomycin hydrochloride (VANH), a water-soluble antibiotic for the treatment of gram-positive bacterial infections like osteomyelitis, arthritis, endocarditis, pneumonia, etc. The objective of this research was to develop a suitable drug delivery system in vivo which could improve therapeutic efficacy and decrease side effects especially nephrotoxicity. Firstly, the vancomycin hydrochloride liposomes (VANH-Lips) were prepared by modified reverse phase evaporation method, then the chitosan wrapped vancomycin hydrochloride liposomes (c-VANH-Lips) nanosuspension was formulated by the method of electrostatic deposition. Based on the optimized results of single-factor screening experiment, the c-VANH-Lips were found to be relatively uniform in size (220.40 ± 3.56 nm) with a narrow polydispersity index (PI) (0.21 ± 0.03) and a positive zeta potential (25.7 ± 1.12 mV). The average drug entrapment efficiency (EE) and drug loading (DL) were 32.65 ± 0.59% and 2.18 ± 0.04%, respectively. The in vitro release profile of c-VANH-Lips possessed a sustained release Characterization and the release behavior was in accordance with the Weibull equation. Hemolysis experiments showed that its intravenous injection had preliminary safety. In vivo, after intravenous injection to mice, c-VANH-Lips showed a longer retention time and higher AUC values compared with the VANH injection (VANH-Inj) and VANH-Lips. In addition, biodistribution results clearly demonstrated that c-VANH-Lips preferentially decreased the drug distribution in kidney of mice after intravenous injection. These results revealed that injectable c-VANH-Lips may serve as a promising carrier for VANH to increase therapeutic efficacy on gram-positive bacterial infections and reduce nephrotoxicity, which provides significantly clinical value for long-term use of VANH.
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25
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Santilli F, Blardi P, Scapellato C, Bocchia M, Guazzi G, Terzuoli L, Tabucchi A, Silvietti A, Lucani B, Gioffrè WR, Scarpini F, Fazio F, Davì G, Puccetti L. Decreased plasma endogenous soluble RAGE, and enhanced adipokine secretion, oxidative stress and platelet/coagulative activation identify non-alcoholic fatty liver disease among patients with familial combined hyperlipidemia and/or metabolic syndrome. Vascul Pharmacol 2015; 72:16-24. [PMID: 26117210 DOI: 10.1016/j.vph.2015.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/23/2015] [Accepted: 04/15/2015] [Indexed: 01/07/2023]
Abstract
OBJECTIVE In patients with familial combined hyperlipidemia (FCHL), without metabolic syndrome (MS), occurrence of non-alcoholic fatty liver disease (NAFLD) is related to a specific pro-inflammatory profile, influenced by genetic traits, involved in oxidative stress and adipokine secretion. Among FCHL or MS patients, hyperactivity of the ligand-receptor for advanced glycation-end-products (RAGE) pathway, as reflected by inadequate protective response by the endogenous secretory (es)RAGE, in concert with genetic predisposition, may identify those with NAFLD even before and regardless of MS. METHODS We cross-sectionally compared 60 patients with vs. 50 without NAFLD. Each group included patients with FCHL alone, MS alone, and FCHL plus MS. RESULTS NAFLD patients had significantly lower plasma esRAGE, IL-10 and adiponectin, and higher CD40 ligand, endogenous thrombin potential and oxidized LDL. The effects of MS plus FCHL were additive. The genotypic cluster including LOX-1 IVS4-14A plus ADIPO 45GG and 256 GT/GG plus IL-10 10-1082G, together with higher esRAGE levels highly discriminate FCHL and MS patients not developing NAFLD. CONCLUSIONS Among FCHL or MS patients, noncarriers of the protective genotypic cluster, with lower esRAGE and higher degree of atherothrombotic abnormalities coincide with the diagnosis of NAFLD. This suggests an interplay between genotype, adipokine secretion, oxidative stress and platelet/coagulative activation, accelerating NAFLD occurrence as a proxy for cardiovascular disease.
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Affiliation(s)
| | | | - Carlo Scapellato
- Division of Clinical Pathology, University Teaching Hospital of Siena, Italy
| | | | - Gianni Guazzi
- Unit of Emergency Radiology, University Teaching Hospital of Siena, Italy
| | - Lucia Terzuoli
- Division of Clinical Pathology, University Teaching Hospital of Siena, Italy
| | - Antonella Tabucchi
- Division of Clinical Pathology, University Teaching Hospital of Siena, Italy
| | - Antonella Silvietti
- Division of Clinical Pathology, University Teaching Hospital of Siena, Italy
| | | | | | | | - Francesca Fazio
- Department of Medicine and Aging, University of Chieti, Italy
| | - Giovanni Davì
- Department of Medicine and Aging, University of Chieti, Italy
| | - Luca Puccetti
- Division of Hematology, University of Siena, Italy; Atherothrombosis Centre, University of Siena, Italy.
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26
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Zhou J, Xu G, Yan J, Li K, Bai Z, Cheng W, Huang K. Rehmannia glutinosa (Gaertn.) DC. polysaccharide ameliorates hyperglycemia, hyperlipemia and vascular inflammation in streptozotocin-induced diabetic mice. J Ethnopharmacol 2015; 164:229-38. [PMID: 25698243 DOI: 10.1016/j.jep.2015.02.026] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 01/19/2015] [Accepted: 02/09/2015] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rehmannia glutinosa (Gaertn.) DC. (RG) has been widely used as traditional Chinese herbal medicine for treatment of diabetes and its complications. The polysaccharide fraction of RG has been proposed to possess hypoglycemic effect by intraperitoneal administration, however, the mechanisms responsible for the hypoglycemic effect of RG polysaccharide (RGP) remain poorly understood. Here we studied the anti-hyperglycemic and anti-hyperlipidemic effect of oral administration of a purified RGP and its underlying mechanisms in streptozotocin (STZ)-induced diabetic mice. MATERIALS AND METHODS The preliminary structure of RGP was determined by GC and FT-IR. Mice were injected with STZ to induce type 1 diabetes. RGP at doses of 20, 40 and 80 mg/kg/day was orally administered to mice for 4 weeks, and metformin was used as positive control. After 4 weeks, the blood biochemical parameters, the pancreatic insulin contents, in vitro insulin secretion, the hepatic glycogen contents and mRNA expression of phosphoenolpyruvate carboxyl kinase (PEPCK) were assayed. RESULTS RGP was composed of rhamnose, arabinose, mannose, glucose and galactose in the molar ratio of 1.00:1.26:0.73:16.45:30.40 with the average molecular weight of 63.5 kDa. RGP administration significantly decreased the blood levels of glucose, total cholesterol, triglycerides, low density lipoprotein-cholesterol, and increased the blood levels of high density lipoprotein-cholesterol and insulin in diabetic mice, concurrent with increases in body weights and pancreatic insulin contents. The in vitro study revealed that RGP significantly enhanced both basal and glucose-stimulated insulin secretions, as well as islet insulin contents in the pancreatic islets of diabetic mice. Moreover, RGP reversed the increased mRNA expression of PEPCK and the reduced glycogen contents in the liver of diabetic mice. Furthermore, RGP exhibited potent anti-inflammatory and anti-oxidative activities, as evidenced by the decreased blood levels of TNF-α, IL-6, monocyte chemoattractant protein-1, MDA, and also the elevated blood levels of SOD and GPx activities in diabetic mice. CONCLUSIONS Taken together, RGP can effectively ameliorate hyperglycemia, hyperlipemia, vascular inflammation and oxidative stress in STZ-induced diabetic mice, and thus may be a potential therapeutic option for type 1 diabetes.
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Affiliation(s)
- Jun Zhou
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China.
| | - Gang Xu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
| | - Junyan Yan
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
| | - Kaicheng Li
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
| | - Zhaoshuai Bai
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
| | - Weinan Cheng
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
| | - Kaixun Huang
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China.
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van der Geest T, Metselaar JM, Gerrits D, van Lent PL, Storm G, Laverman P, Boerman OC. [(18)]F FDG PET/CT imaging to monitor the therapeutic effect of liposome-encapsulated prednisolone in experimental rheumatoid arthritis. J Control Release 2015; 209:20-6. [PMID: 25902038 DOI: 10.1016/j.jconrel.2015.04.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 11/25/2022]
Abstract
Current treatment of rheumatoid arthritis includes systemic administration of glucocorticoids. To improve joint targeting and anti-inflammatory efficacy these glucocorticoids are encapsulated in long-circulating liposomes. The present study aimed to monitor therapeutic effects of prednisolone (PLP)-containing PEG-liposomes in murine antigen-induced arthritis (AIA) using [(18)F]FDG PET/CT. Mono-articular arthritis was induced in male C57Bl6/J mice. At 0, 3, 7 and 12 days after arthritis induction, inflamed joints were macroscopically scored (0 = unaffected to 4 = immobile) and [(18)F]FDG PET/CT images were acquired. In a second experiment, to study the feasibility to monitor therapeutic effects of PLP encapsulating PEG-liposomes, mice were treated with a single i.v. injection of PLP-containing PEG-liposomes (10 mg/kg) or empty PEG-liposomes 3 days after arthritis induction. Inflamed joints were macroscopically scored and images were acquired at -3, 0, 4 and 9 days after treatment. PET images were analyzed quantitatively, and mice were dissected to allow histological analysis of the joints. With progression of arthritis, [(18)F]FDG uptake in inflamed joints increased significantly (day 0: 2.5 ± 0.9%ID/ml, day 7: 4.4 ± 0.4%ID/ml, p = 0.0159), while no changes were observed in unaffected paws (day 0: 2.5 ± 1.1%ID/ml, day 7: 2.7 ± 0.8%ID/ml, p = 0.3466). In the second experiment, macroscopic scoring revealed suppression of joint swelling after treatment with PLP-containing PEG-liposomes. In line with that, [(18)F]FDG uptake did not change in the treated mice (day -3: 1.9 ± 0.3%ID/ml, day 4: 2.2 ± 0.2%ID/ml, p = 0.3466), while it increased in mice that developed arthritis (day -3: 2.0 ± 0.2%ID/ml, day 4: 3.1 ± 0.6%ID/ml, p = 0.0225). Histological analysis confirmed therapeutic efficacy, which showed less inflammation (p = 0.0354) and bone erosion (p = 0.0298) in treated mice. These data show that [(18)F]FDG PET/CT could be used to monitor the progression of AIA and confirmed rapid and profound anti-inflammatory effects of PLP-containing PEG-liposomes that were also observed macroscopically and microscopically.
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Affiliation(s)
- Tessa van der Geest
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Geert Grooteplein zuid 10, 6525 GA Nijmegen, The Netherlands.
| | - Josbert M Metselaar
- Department of Targeted Therapeutics, MIRA Institute, University of Twente, Zuidhorst, 7500 AE Enschede, The Netherlands; Department of Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH-Aachen University, Pauwelstrasse 30, 52074 Aachen, Germany.
| | - Danny Gerrits
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Geert Grooteplein zuid 10, 6525 GA Nijmegen, The Netherlands.
| | - Peter L van Lent
- Department of Experimental Rheumatology, Radboud university medical center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands.
| | - Gert Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
| | - Peter Laverman
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Geert Grooteplein zuid 10, 6525 GA Nijmegen, The Netherlands.
| | - Otto C Boerman
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Geert Grooteplein zuid 10, 6525 GA Nijmegen, The Netherlands.
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El Kechai N, Bochot A, Huang N, Nguyen Y, Ferrary E, Agnely F. Effect of liposomes on rheological and syringeability properties of hyaluronic acid hydrogels intended for local injection of drugs. Int J Pharm 2015; 487:187-96. [PMID: 25882015 DOI: 10.1016/j.ijpharm.2015.04.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/07/2015] [Accepted: 04/09/2015] [Indexed: 12/11/2022]
Abstract
The aim of this work was to thoroughly study the effect of liposomes on the rheological and the syringeability properties of hyaluronic acid (HA) hydrogels intended for the local administration of drugs by injection. Whatever the characteristics of the liposomes added (neutral, positively or negatively charged, with a corona of polyethylene glycol chains, size), the viscosity and the elasticity of HA gels increased in a lipid concentration-dependent manner. Indeed, liposomes strengthened the network formed by HA chains due to their interactions with this polymer. The nature and the resulting effects of these interactions depended on liposome composition and concentration. The highest viscosity and elasticity were observed with liposomes covered by polyethylene glycol chains while neutral liposomes displayed the lowest effect. Despite their high viscosity at rest, all the formulations remained easily injectable through needles commonly used for local injections thanks to the shear-thinning behavior of HA gels. The present study demonstrates that rheological and syringeability tests are both necessary to elucidate the behavior of such systems during and post injection. In conclusion, HA liposomal gels appear to be a promising and versatile formulation platform for a wide range of applications in local drug delivery when an injection is required.
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Al-Mahallawi AM, Abdelbary AA, Aburahma MH. Investigating the potential of employing bilosomes as a novel vesicular carrier for transdermal delivery of tenoxicam. Int J Pharm 2015; 485:329-40. [PMID: 25796122 DOI: 10.1016/j.ijpharm.2015.03.033] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 01/08/2023]
Abstract
Bilosomes represent an evolving vesicular carrier that have been explored for oral vaccines delivery based on its ability to resist enzymes and bile salts in the gastrointestinal tract (GIT). Bilosomes vesicles are formed of bilayer membrane of non-ionic surfactant molecules encompassing bile salts. Although, bilosomes have not been proposed for transdermal drug delivery, this carrier seems to have promising potential in this regard. Accordingly, the aim of this investigation was to assess the capability and safety of utilizing bilosomes for transdermal delivery of tenoxicam (TX) as a model drug. A 3(1)2(2) full factorial design was adopted to study the effects of different formulation parameters on bilosomes properties and select the optimal formulation using Design-Expert(®) software. The selected formulation displayed nano-sized spherical vesicles (242.5 ± 6.43nm) with reasonable entrapment efficiency percent (68.33 ± 2.33%). Confocal laser scanning microscopy confirmed the capability of the flourolabeled bilosomes to penetrate deep within the skin. Both, ex vivo permeation and in vivo skin deposition studies confirmed the superiority of bilosomes over drug solution in delivering TX transdermally. In addition, in vivo histopathological study proved the safety of topically applied bilosomes. In summary, the highlighted results confirmed that bilosomes can be further adopted for delivering drugs transdermally.
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Affiliation(s)
- Abdulaziz M Al-Mahallawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Aly A Abdelbary
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mona H Aburahma
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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Alavizadeh SH, Badiee A, Golmohammadzadeh S, Jaafari MR. The influence of phospholipid on the physicochemical properties and anti-tumor efficacy of liposomes encapsulating cisplatin in mice bearing C26 colon carcinoma. Int J Pharm 2014; 473:326-33. [PMID: 25051111 DOI: 10.1016/j.ijpharm.2014.07.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 07/16/2014] [Accepted: 07/16/2014] [Indexed: 11/26/2022]
Abstract
SPI-077, cisplatin stealth liposome, is the best illustration of poor cisplatin release from liposomes and the subsequent negligible therapeutic activity. For this reason, optimizing drug release kinetics is desirable. In this report, cisplatin was encapsulated in liposomes composed of different phosphatidylcholines with various phase transition temperatures (Tm) (HSPC, DPPC, DMPC, soy phosphatidylcholine (SPC)), cholesterol and mPEG2000-DSPE. In vitro cytotoxicity studies indicated that lowering Tm of lipids increases cisplatin release; the highest cytotoxicity was observed in SPCs. Cisplatin plasma concentration was also sensitive to the transition temperature. The highest platinum concentration observed after treatment with HSPC and DPPC liposomes, whilst the lowest was observed with SPC. HSPC and DPPC containing liposomes showed the highest therapeutic efficacy and survival with DPPC exhibited better efficacy in mouse model of C26. It seems that DPPC with Tm (41.5°C) nearly, or close to body temperature maintains good drug retention in blood circulation. Upon extravasation through permeable tumor microvasculature, it gradually releases its payload in the tumor area better than HSPC, with a greater Tm of 55°C. Our data suggests, the choice of Tm for lipid mixture directed to a considerable extent the rate of cisplatin elimination from plasma and therapeutic effects.
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Affiliation(s)
- Seyedeh Hoda Alavizadeh
- Biotechnology Research Center, Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran
| | - Ali Badiee
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran
| | - Shiva Golmohammadzadeh
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran
| | - Mahmoud Reza Jaafari
- Biotechnology Research Center, Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran.
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Lv HL, Jin DM, Liu M, Liu YM, Wang JF, Geng DF. Long-term efficacy and safety of statin treatment beyond six years: a meta-analysis of randomized controlled trials with extended follow-up. Pharmacol Res 2014; 81:64-73. [PMID: 24602799 DOI: 10.1016/j.phrs.2014.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 02/16/2014] [Accepted: 02/25/2014] [Indexed: 02/07/2023]
Abstract
Large-scale randomized controlled trials (RCTs) have well demonstrated the beneficial effects of cholesterol-lowering treatment with statins in patients at high risk of vascular disease. However, large statin RCTs were usually restricted to the typical 5-6 years. Moreover, non-cardiovascular events, especially the risk of cancer, probably failed to emerge within a restricted period of 6 years. The aim of this study was to evaluate the long-term efficacy and safety of statin treatment by performing a meta-analysis of statin RCTs with extended follow-up beyond 6 years. Six RCTs with post-trial follow-up were eligible for inclusion, involving 47,296 patients with total follow-up ranging from 6.7 to 14.7 years. During the post-trial period, all the surviving participants were advised to take a statin and the cholesterol level were almost identical between the original statin group and the original placebo group. Over the entire 6.7-14.7 years of follow-up, a significant reduction in the rates of all-cause mortality (relative risk 0.90, 95% confidence interval 0.85-0.96; P=0.0009), cardiovascular mortality (0.87, 0.81-0.93; P<0.0001) and major coronary events (0.79, 0.72-0.86; P<0.00001) was observed in favour of the original statin group. During 2-year post-trial period, further reduction in all-cause mortality (0.83, 0.74-0.93; P=0.001), cardiovascular mortality (0.81, 0.69-0.95; P=0.01) and major coronary events (0.77, 0.63-0.95; P=0.01) was observed among initially statin-treated patients. Over the entire follow-up period, statin treatment did not increase the incidence of cancers (0.99, 0.95-1.04; P=0.79), deaths from cancers (1.00, 0.93-1.07; P=0.98) and non-cardiovascular mortality (0.95, 0.90-1.00; P=0.07). In conclusion, statin treatment beyond 6 years is effective and safe in patients at high risk of vascular events. Moreover, earlier treatment with statin may not only preserve the initial benefit but also have further survival benefit for additional 2 years. Further studies are called for to explore the underlying mechanisms.
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Affiliation(s)
- Han-lu Lv
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dong-mei Jin
- Department of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mo Liu
- Department of Stomatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ying-mei Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing-feng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Deng-feng Geng
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
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Groen AK, Bloks VW, Verkade H, Kuipers F. Cross-talk between liver and intestine in control of cholesterol and energy homeostasis. Mol Aspects Med. 2014;37:77-88. [PMID: 24560594 DOI: 10.1016/j.mam.2014.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 12/04/2013] [Accepted: 02/10/2014] [Indexed: 12/19/2022]
Abstract
A major hurdle for organisms to dispose of cholesterol is the inability to degrade the sterol nucleus which constitutes the central part of the molecule. Synthesis of the sterol nucleus requires a complex, energy costly, metabolic pathway but also generates a diverse array of intermediates serving crucial roles in cellular energy metabolism and signal transduction. This may be the reason why this complex pathway has survived evolutionary pressure. The only way to get rid of substantial amounts of cholesterol is conversion into bile acid or direct excretion of the sterol in the feces. The lack of versatility in disposal mechanisms causes a lack of flexibility to regulate cholesterol homeostasis which may underlie the considerable human pathology linked to cholesterol removal from the body. Export of cholesterol from the body requires an intricate communication between intestine and the liver. The last decade this inter-organ cross talk has been focus of intense research leading to considerable new insight. This novel information on particular the cross-talk between liver and intestine and role of bile acids as signal transducing molecules forms the focus of this review.
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Amin M, Badiee A, Jaafari MR. Improvement of pharmacokinetic and antitumor activity of PEGylated liposomal doxorubicin by targeting with N-methylated cyclic RGD peptide in mice bearing C-26 colon carcinomas. Int J Pharm 2013. [PMID: 24148663 DOI: 10.1016/j.ijpharm.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Cyclic Arg-Gly-Asp (cRGD) pentapeptides engrafted liposomes have attracted considerable attention for targeting integrin receptors on tumor vasculature. In this study PEGylated liposomal doxorubicin (PLD) was decorated with three cRGD peptides including Arg-Gly-Asp-D-Tyr-Cys (RGDyC), Arg-Gly-Asp-D-Phe-Lys (RGDfK) and Arg-Gly-Asp-D-Phe-[N-Methyl]Lys (RGDf[N-Met]K). The in vitro liposome-cell-association and cytotoxicity experiments demonstrated the RGD-PLDs capability of internalization into integrin expressing HUVEC cells via receptor mediated endocytosis. The biodistribution studies revealed that decreasing the hydrophilicity of the peptide greatly reduces the RGD-PLDs blood clearance rate and increases their localization in C-26 colon carcinoma tumor model. Meanwhile, the most selective version, RGDf[N-Met]K, which has intermediate hydrophilicity revealed the lowest unwanted interactions with other integrin presenting sites, further localization in tumor, and lower doxorubicin (Dox) side effects. RGDf[N-Met]K-PLD demonstrated a superior control of tumor growth and increased the survival of mice. In this study, we introduced RGDf[N-Met]K for the first time, as a promising ligand for active targeting of liposomes to solid tumor which merits further investigations.
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Affiliation(s)
- Mohamadreza Amin
- Biotechnology Research Center, Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad 91775-1365, Iran
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