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Casula L, Pireddu R, Cardia MC, Pini E, Valenti D, Schlich M, Sinico C, Marceddu S, Dragićević N, Fadda AM, Lai F. Nanosuspension-Based Dissolvable Microneedle Arrays to Enhance Diclofenac Skin Delivery. Pharmaceutics 2023; 15:2308. [PMID: 37765277 PMCID: PMC10536216 DOI: 10.3390/pharmaceutics15092308] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/30/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Applying a formulation on the skin represents a patient-acceptable and therapeutically effective way to administer drugs locally and systemically. However, the stratum corneum stands as an impermeable barrier that only allows a very limited number of drugs to be distributed in the underlying tissues, limiting the feasibility of this administration route. Microneedle arrays are minimally invasive platforms that allow the delivery of drugs within/across the skin through the temporary mechanical disruption of the stratum corneum. In this work, microneedle arrays were combined with nanosuspensions, a technology for solubility enhancement of water insoluble molecules, for the skin delivery of diclofenac. Nanosuspensions were prepared using a top-down method and loaded in the tips of 500 µm or 800 µm high microneedles. The quality of the combined platform was assessed using electron microscopy and spectroscopic and calorimetry techniques, demonstrating the ability to load high amounts of the hydrophobic drug and the compatibility between excipients. Lastly, the application of nanosuspension-loaded microneedles on the skin in vitro allowed the delivery of diclofenac within and across the stratum corneum, proving the potential of this combination to enhance skin delivery of scarcely soluble drugs.
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Affiliation(s)
- Luca Casula
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Rosa Pireddu
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Maria Cristina Cardia
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Elena Pini
- Department of Pharmaceutical Sciences, General and Organic Chemistry Section "Alessandro Marchesini", University of Milan, 20133 Milan, Italy
| | - Donatella Valenti
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Michele Schlich
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Chiara Sinico
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Salvatore Marceddu
- Istituto di Scienze delle Produzioni Alimentari (ISPA)-CNR, Sez. di Sassari, 07040 Baldinca, Italy
| | - Nina Dragićević
- Department of Pharmacy, Singidunum University, 11107 Belgrade, Serbia
| | - Anna Maria Fadda
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Francesco Lai
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, 09124 Cagliari, Italy
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Ruggeri M, Sánchez-Espejo R, Casula L, Sandri G, Perioli L, Cardia MC, Lai F, Viseras C. Bentonite- and Palygorskite-Based Gels for Topical Drug Delivery Applications. Pharmaceutics 2023; 15:pharmaceutics15041253. [PMID: 37111738 PMCID: PMC10141350 DOI: 10.3390/pharmaceutics15041253] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/06/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
Bentonite or palygorskite-based hydrogels have recently been suggested as a strategy to increase bioavailability and control the retention and release of therapeutic candidates. In this work, clay-based hydrogels loaded with diclofenac acid nanocrystals have been successfully designed and developed. The aim was to improve diclofenac solubility, its dissolution rate and to enhance its local bioavailability after topical application. For this purpose, diclofenac acid nanocrystals were prepared by wet media milling technology and then loaded into inorganic hydrogels based on bentonite and/or palygorskite. Diclofenac acid nanocrystals were characterized by morphology, size, and zeta potential. Moreover, rheological behavior, morphology, solid state, release studies, and in vitro skin penetration/permeation of diclofenac acid nanocrystals-loaded hydrogels were performed. The hydrogels were characterized by a crystalline structure, and demonstrated that the inclusion of diclofenac in clay-based hydrogels resulted in an increased thermal stability. The presence of both palygorskite and bentonite reduced nanocrystal mobility, and consequently its release and penetration into the skin. On the other hand, bentonite- or palygorskite-based hydrogels revealed great potential as an alternative strategy to enhance topical bioavailability of DCF nanocrystals, enhancing their penetration to the deeper skin layers.
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Affiliation(s)
- Marco Ruggeri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Rita Sánchez-Espejo
- Department of Pharmacy and Pharmaceutical Technology, University of Granada, 18071 Granada, Spain
| | - Luca Casula
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Luana Perioli
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Maria Cristina Cardia
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy
| | - Francesco Lai
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, University of Granada, 18071 Granada, Spain
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Rosa A, Nieddu M, Pitzanti G, Pireddu R, Lai F, Cardia MC. Impact of solid lipid nanoparticles on 3T3 fibroblasts viability and lipid profile: The effect of curcumin and resveratrol loading. J Appl Toxicol 2023; 43:272-286. [PMID: 35978497 PMCID: PMC10087382 DOI: 10.1002/jat.4379] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/01/2022] [Revised: 07/25/2022] [Accepted: 08/13/2022] [Indexed: 01/17/2023]
Abstract
This study focused on the impact in 3T3 fibroblasts of several types of empty and curcumin- and resveratrol-loaded solid lipid nanoparticles (SLN) on cell viability and lipid metabolism in relation to their lipid content and encapsulated drug. SLN, prepared by hot homogenization/ultrasonication, were characterized with respect to size, polydispersity index, and zeta potential. Compritol® 888 ATO at different concentrations (4%, 5%, and 6% wt/wt) was chosen as lipid matrix while Poloxamer 188 (from 2.2% to 3.3% wt/wt) and Transcutol (TRC; 2% or 4%) were added as nanoparticle excipients. Prepared SLN were able to encapsulate high drug amount (encapsulation efficiency percentage of about 97-99%). All empty SLN did not show cytotoxicity (by MTT assay, at 24 h of incubation) in 3T3 cells independently of the lipid and TRC amount, while a viability reduction in the range 5-11% and 12-27% was observed in 3T3 cells treated with curcumin-loaded and resveratrol-loaded SLN, respectively. SLN without TRC did not affect cell lipid metabolism, independently from the lipid content. Empty and loaded SLN formulated with 4% of Compritol and 4% of TRC significantly affected, after 24 h of incubation at the dose of 5 μl/ml, cell polar lipids (phospholipids and free cholesterol) and fatty acid profile, with respect to control cells. Loaded compounds significantly modulated the impact of the corresponding empty formulation on cell lipids. Therefore, the combined impact on lipid metabolism of SLN and loaded drug should be taken in consideration in the evaluation of the toxicity, potential application, and therapeutic effects of new formulations.
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Affiliation(s)
- Antonella Rosa
- Department of Biomedical Science, University of Cagliari, Cagliari, Italy
| | - Mariella Nieddu
- Department of Biomedical Science, University of Cagliari, Cagliari, Italy
| | - Giulia Pitzanti
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Rosa Pireddu
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Francesco Lai
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Maria Cristina Cardia
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
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Cristina Cardia M, Francesca Palmas M, Casula L, Pisanu A, Marceddu S, Valenti D, Sinico C, Pini E, Scerba MT, Tweedie D, Greig NH, Rosa Carta A, Lai F. Nanocrystals as an effective strategy to improve Pomalidomide bioavailability in rodent. Int J Pharm 2022; 625:122079. [PMID: 35932932 DOI: 10.1016/j.ijpharm.2022.122079] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/14/2022] [Accepted: 08/01/2022] [Indexed: 10/16/2022]
Abstract
Pomalidomide (POM) is an FDA-approved immunomodulatory imide drug (IMiDs) an it is effectively used in the treatment of multiple myeloma. IMiDs are analogs of the drug thalidomide and they have been repurposed for the treatment of several diseases such as psoriatic arthritis and Kaposi Sarcoma. In recent years, IMiDs have been also evaluated as a new treatment for neurological disorders with an inflammatory and neuroinflammatory component. POM draws particular interest for its potent anti-TNF-α activity at significantly lower concentrations than the parent compound thalidomide. However, POM's low water solubility underpins its low gastrointestinal permeability resulting in irregular and poor absorption. The purpose of this work was to prepare a POM nanocrystal-based formulation that could efficiently improve POM's plasma and brain concentration after intraperitoneal injection. POM nanocrystals prepared as a nanosuspension by the media milling method showed a mean diameter of 219 nm and a polydispersity index of 0.21. POM's nanocrystal solubility value (22.97 µg/mL) in phosphate buffer was about 1.58 folds higher than the POM raw powder. Finally, in vivo studies conducted in adult Male Sprague-Dawley rats indicated that POM nanocrystal ensured higher and longer-lasting drug levels in plasma and brain when compared with POM coarse suspension.
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Affiliation(s)
- Maria Cristina Cardia
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari, Italy
| | | | - Luca Casula
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari, Italy
| | - Augusta Pisanu
- National Research Council, Institute of Neuroscience, Cagliari, Italy
| | - Salvatore Marceddu
- Institute of Sciences of Food Production (ISPA-CNR), Baldinca (Sassari), Italy
| | - Donatella Valenti
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari, Italy
| | - Chiara Sinico
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari, Italy
| | - Elena Pini
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, Italy
| | - Michael T Scerba
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - David Tweedie
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, MD, United States
| | - Anna Rosa Carta
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.
| | - Francesco Lai
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari, Italy.
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Palmas MF, Ena A, Burgaletto C, Casu MA, Cantarella G, Carboni E, Etzi M, De Simone A, Fusco G, Cardia MC, Lai F, Picci L, Tweedie D, Scerba MT, Coroneo V, Bernardini R, Greig NH, Pisanu A, Carta AR. Repurposing Pomalidomide as a Neuroprotective Drug: Efficacy in an Alpha-Synuclein-Based Model of Parkinson's Disease. Neurotherapeutics 2022; 19:305-324. [PMID: 35072912 PMCID: PMC9130415 DOI: 10.1007/s13311-022-01182-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/24/2021] [Indexed: 12/17/2022] Open
Abstract
Marketed drugs for Parkinson's disease (PD) treat disease motor symptoms but are ineffective in stopping or slowing disease progression. In the quest of novel pharmacological approaches that may target disease progression, drug-repurposing provides a strategy to accelerate the preclinical and clinical testing of drugs already approved for other medical indications. Here, we targeted the inflammatory component of PD pathology, by testing for the first time the disease-modifying properties of the immunomodulatory imide drug (IMiD) pomalidomide in a translational rat model of PD neuropathology based on the intranigral bilateral infusion of toxic preformed oligomers of human α-synuclein (H-αSynOs). The neuroprotective effect of pomalidomide (20 mg/kg; i.p. three times/week 48 h apart) was tested in the first stage of disease progression by means of a chronic two-month administration, starting 1 month after H-αSynOs infusion, when an already ongoing neuroinflammation is observed. The intracerebral infusion of H-αSynOs induced an impairment in motor and coordination performance that was fully rescued by pomalidomide, as assessed via a battery of motor tests three months after infusion. Moreover, H-αSynOs-infused rats displayed a 40-45% cell loss within the bilateral substantia nigra, as measured by stereological counting of TH + and Nissl-stained neurons, that was largely abolished by pomalidomide. The inflammatory response to H-αSynOs infusion and the pomalidomide treatment was evaluated both in CNS affected areas and peripherally in the serum. A reactive microgliosis, measured as the volume occupied by the microglial marker Iba-1, was present in the substantia nigra three months after H-αSynOs infusion as well as after H-αSynOs plus pomalidomide treatment. However, microglia differed for their phenotype among experimental groups. After H-αSynOs infusion, microglia displayed a proinflammatory profile, producing a large amount of the proinflammatory cytokine TNF-α. In contrast, pomalidomide inhibited the TNF-α overproduction and elevated the anti-inflammatory cytokine IL-10. Moreover, the H-αSynOs infusion induced a systemic inflammation with overproduction of serum proinflammatory cytokines and chemokines, that was largely mitigated by pomalidomide. Results provide evidence of the disease modifying potential of pomalidomide in a neuropathological rodent model of PD and support the repurposing of this drug for clinical testing in PD patients.
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Affiliation(s)
| | - Anna Ena
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Chiara Burgaletto
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Giuseppina Cantarella
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Ezio Carboni
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Michela Etzi
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Alfonso De Simone
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Giuliana Fusco
- Centre for Misfolding Diseases, Department of Chemistry, University of Cambridge, Cambridge, UK
| | - Maria Cristina Cardia
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Francesco Lai
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Luca Picci
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - David Tweedie
- Drug Design & Development Section, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, Baltimore, MD, USA
| | - Michael T Scerba
- Drug Design & Development Section, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, Baltimore, MD, USA
| | - Valentina Coroneo
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Renato Bernardini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, National Institute On Aging, National Institutes of Health, Baltimore, MD, USA
| | - Augusta Pisanu
- National Research Council, Institute of Neuroscience, Cagliari, Italy.
| | - Anna R Carta
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.
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Casula L, Lai F, Pini E, Valenti D, Sinico C, Cardia MC, Marceddu S, Ailuno G, Fadda AM. Pulmonary Delivery of Curcumin and Beclomethasone Dipropionate in a Multicomponent Nanosuspension for the Treatment of Bronchial Asthma. Pharmaceutics 2021; 13:pharmaceutics13081300. [PMID: 34452261 PMCID: PMC8401312 DOI: 10.3390/pharmaceutics13081300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 07/21/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
Curcumin has shown a potential extraordinary activity as an add-on ingredient in asthma treatment, due to its immunomodulatory and anti-inflammatory mechanism of action. However, its low water solubility and bioavailability lead to a poor therapeutic effect, which can be overcome by its formulation as nanocrystals. The aim of this study was to prepare a multicomponent formulation for the delivery of curcumin (CUR) and beclomethasone dipropionate (BDP) into the lungs as water-based nanosuspensions (NS). Single component formulations (CUR-NS, BDP-NS) and a multicomponent formulation (CUR+BDP-NS) were prepared through a wet ball media milling technique, using P188 as a non-toxic stabilizer. Characterization was carried out in terms of size, size distribution, zeta potential, nanocrystals morphology, and solid-state properties. Moreover, the inhalation delivery efficiency was studied with Next Generation Impactor (NGI, Apparatus E Ph. Eu). CUR-NS was optimized and showed a long-term stability and improved nanocrystals apparent solubility. The three formulations exhibited a nanocrystal mean diameter in the range of 200-240 nm and a homogenous particle size distribution. Aggregation or sedimentation phenomena were not observed in the multicomponent formulation on 90 days storage at room temperature. Finally, the nebulization tests of the three samples showed optimal aerodynamic parameters and MMAD < 5 µm.
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Affiliation(s)
- Luca Casula
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
| | - Francesco Lai
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
| | - Elena Pini
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano, Via Venezian 21, 20133 Milano, Italy;
| | - Donatella Valenti
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
| | - Chiara Sinico
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
| | - Maria Cristina Cardia
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
| | - Salvatore Marceddu
- Istituto di Scienze delle Produzioni Alimentari (ISPA)-CNR, Sez. di Sassari, 07040 Baldinca, Italy;
| | - Giorgia Ailuno
- Department of Pharmacy, University of Genova, 16147 Genova, Italy;
| | - Anna Maria Fadda
- Dipartimento di Scienze della Vita e dell’Ambiente, Sezione di Scienze del Farmaco, Università degli Studi di Cagliari, 09124 Cagliari, Italy; (L.C.); (F.L.); (D.V.); (C.S.); (M.C.C.)
- Correspondence: ; Tel.: +39-070-675-8565
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Shaghayegh Alavi S, Hadi Razavi S, Khodaiyan F, Cristina Cardia M, Lai F, Valenti D, Pini E, Rosa A, Nieddu M, Fadda AM. Proniosomal Formulation Encapsulating Pomegranate Peel Extract for Nutraceutical Applications. J Nanosci Nanotechnol 2021; 21:2907-2916. [PMID: 33653457 DOI: 10.1166/jnn.2021.19055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, pomegranate peel as a traditional natural remedy was extracted and encapsulated in proniosomal systems in order to improve its stability against harsh environmental conditions. Pomegranate peel was extracted by using sonication as a green extraction technology and the antioxidant activity of the obtained extract was evaluated to be 85.37% by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals. Proniosomal powder was prepared based on the slurry method with a mixture of non-ionic surfactants namely span 60 and tween 20 in combination with cholesterol as a bilayer stabilizer. Proniosome-derived niosomes were achieved by hydration of the powder with water. The obtained vesicles were evaluated for their particle size, morphological observations, entrapment efficiency, cytotoxicity assay, DPPH antioxidant activity and, physical stability at 4 °C for 28 days. The results demonstrated that the proniosome-derived niosomes were of small size (198.16 nm for unloaded and 411.3 for extract loaded), quite homogeneous (PDI = 0.188 for unloaded and 0.216 for loaded) with highly negative charged spherical vesicles and showed appropriate physical stability during the time of storage. The encapsulation efficiency was 68.43±0.24% and the cytotoxicity assay proved that the formulations were not toxic against 3T3 fibroblast cells in the applied concentration.
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Affiliation(s)
- Seyedeh Shaghayegh Alavi
- Department of Food Science, Engineering and Technology, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj 3158777871, Iran
| | - Seyed Hadi Razavi
- Department of Food Science, Engineering and Technology, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj 3158777871, Iran
| | - Faramarz Khodaiyan
- Department of Food Science, Engineering and Technology, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj 3158777871, Iran
| | - Maria Cristina Cardia
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari 09124, Italy
| | - Francesco Lai
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari 09124, Italy
| | - Donatella Valenti
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari 09124, Italy
| | - Elena Pini
- Department of Pharmaceutical Science-Sezione di Chimica Generale e Organica "A. Marchesini," Università degli Studi di Milano, Milan, 20133, Italy
| | - Antonella Rosa
- Department of Biomedical Science, University of Cagliari, 09042 Monserrato (CA), Italy
| | - Mariella Nieddu
- Department of Biomedical Science, University of Cagliari, 09042 Monserrato (CA), Italy
| | - Anna Maria Fadda
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, Cagliari 09124, Italy
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Cardia MC, Carta AR, Caboni P, Maccioni AM, Erbì S, Boi L, Meloni MC, Lai F, Sinico C. Trimethyl Chitosan Hydrogel Nanoparticles for Progesterone Delivery in Neurodegenerative Disorders. Pharmaceutics 2019; 11:pharmaceutics11120657. [PMID: 31817711 PMCID: PMC6956284 DOI: 10.3390/pharmaceutics11120657] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 10/31/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 11/24/2022] Open
Abstract
Progesterone is a sex hormone which shows neuroprotective effects in different neurodegenerative disorders, including Parkinson’s disease, stroke, and Alzheimer’s disease. However, the pharmacokinetic limitations associated with the peripheral administration of this molecule highlight the need for more efficient delivery approaches to increase brain progesterone levels. Since the nose-to-brain administration of mucoadhesive hydrogel nanoparticles is a non-invasive and convenient strategy for the delivery of therapeutics to the central nervous system, in this work, progesterone-loaded hydrogel nanoparticle formulations have been prepared, characterized, and tested in vivo. Nanoparticles, loaded with different progesterone concentrations, have been obtained by polyelectrolyte complex formation between trimethyl chitosan and sodium alginate, followed by ionotropic gelation with sodium tripolyphosphate as a cross-linking agent. All formulations showed a mean diameter ranging from 200 nm to 236 nm, a polydispersity index smaller than 0.23, and a high progesterone encapsulation efficiency (83–95%). The zeta potential values were all positive and greater than 28 mV, thus ensuring nanoparticles stability against aggregation phenomena as well as interaction with negative sialic residues of the nasal mucosa. Finally, in vivo studies on Sprague–Dawley male rats demonstrated a 5-fold increase in brain progesterone concentrations compared to basal progesterone level after 30 min of hydrogel nanoparticle inhalation.
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Affiliation(s)
- Maria Cristina Cardia
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
| | - Anna Rosa Carta
- Department of Biomedical Sciences, University of Cagliari, 09124 Cagliari, Italy; (A.R.C.); (L.B.)
| | - Pierluigi Caboni
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
| | - Anna Maria Maccioni
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
| | - Sara Erbì
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
| | - Laura Boi
- Department of Biomedical Sciences, University of Cagliari, 09124 Cagliari, Italy; (A.R.C.); (L.B.)
| | - Maria Cristina Meloni
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
| | - Francesco Lai
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
- Correspondence: ; Tel.: +39-070-6758514
| | - Chiara Sinico
- Department of Life and Environmental Sciences, Unit of Drug Sciences, University of Cagliari, 09124 Cagliari, Italy; (M.C.C.); (P.C.); (A.M.M.); (S.E.); (M.C.M.); (C.S.)
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Cardia MC, Caddeo C, Lai F, Fadda AM, Sinico C, Luhmer M. 1H NMR study of the interaction of trans-resveratrol with soybean phosphatidylcholine liposomes. Sci Rep 2019; 9:17736. [PMID: 31780702 PMCID: PMC6883048 DOI: 10.1038/s41598-019-54199-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/31/2019] [Indexed: 01/13/2023] Open
Abstract
Resveratrol (RSV) is a well-known natural derivative with a wide range of biological and pharmacological activities. Despite of these demonstrated properties, it exhibits low both aqueous solubility and chemical stability and therefore low bioavailability. Consequently, the major concern of the technological research is to exploit delivery systems able to overcome bioavailability problems. In the recent past liposomes have been successfully studied for these purposes. In this paper, 1H-NMR spectroscopy, Nuclear Overhauser Spectroscopy (NOESY) as well as Paramagnetic Relaxation Enhancements (PRE) experiments have been carried out to quantitatively investigate the incorporation of resveratrol, at both the liposome preparation stage and by preformed liposomes, also with the aim to characterize resveratrol- soybean phosphatidylcholine (P90G) lipid bilayer interactions. Overall results of 1H NMR spectroscopy analysis suggest that RSV is located nearby the phosphocholine headgroups and also provide quantitative data on the incorporation of RSV (5% w/w), which corresponds to a 150-fold increase with respect to the solubility of RSV in water. Beside, considering that the same level of RSV incorporation was obtained via spontaneous uptake by preformed P90G liposomes, it can be concluded that RSV easily diffuses through the lipid bilayer.
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Affiliation(s)
- Maria Cristina Cardia
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124, Cagliari, Italy
| | - Carla Caddeo
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124, Cagliari, Italy
| | - Francesco Lai
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124, Cagliari, Italy
| | - Anna Maria Fadda
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124, Cagliari, Italy
| | - Chiara Sinico
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124, Cagliari, Italy.
| | - Michel Luhmer
- Laboratoire de Résonance Magnétique Nucléaire Haute Résolution, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/08, 1050, Brussels, Belgium.
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10
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Melis V, Manca ML, Bullita E, Tamburini E, Castangia I, Cardia MC, Valenti D, Fadda AM, Peris JE, Manconi M. Inhalable polymer-glycerosomes as safe and effective carriers for rifampicin delivery to the lungs. Colloids Surf B Biointerfaces 2016; 143:301-308. [DOI: 10.1016/j.colsurfb.2016.03.044] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 01/12/2023]
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11
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Caddeo C, Manconi M, Cardia MC, Díez-Sales O, Fadda AM, Sinico C. Investigating the interactions of resveratrol with phospholipid vesicle bilayer and the skin: NMR studies and confocal imaging. Int J Pharm 2015; 484:138-45. [PMID: 25708006 DOI: 10.1016/j.ijpharm.2015.02.049] [Citation(s) in RCA: 17] [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: 01/12/2015] [Revised: 02/17/2015] [Accepted: 02/18/2015] [Indexed: 10/24/2022]
Abstract
In this work, phospholipid vesicle-based nanoformulations were developed to deliver antioxidant resveratrol (RSV) to the skin. Penetration enhancer-containing vesicles (PEVs) were prepared adding Oramix™ CG110 or Lauroglycol™ FCC to phosphatidylcholine to favor RSV diffusion through the skin, which was investigated using Franz cells. Vesicles were approximately 100 nm in size, negatively charged and fairly round in shape, as shown via transmission electron microscopy. Nuclear magnetic resonance studies were performed to investigate the RSV/vesicle interactions at the molecular scale, which revealed that RSV was deeply embedded in the bilayer, as shown by the restricted mobility of the drug. Moreover, PEVs improved drug local accumulation 1.7- to 2.1-fold, as compared to the control liposomes. Confocal imaging displayed broadened intercellular spaces in the viable epidermis of PEVs treated skin and high degree of hydration, which are presumably due to the occlusive film formed on the skin surface by the vesicles. These phenomena may be responsible for the higher RSV accumulation achieved when administering PEVs, as compared to control liposomes. Finally, the toxicity of the vesicular formulations was evaluated in vitro against 3T3 fibroblasts, showing no alteration on cell viability after 24h incubation with RSV loaded vesicles. The results from this study suggest that the proposed formulations may be a potential therapeutic alternative to treat skin disorders associated with oxidative stress.
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Affiliation(s)
- Carla Caddeo
- Deptment of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Manconi
- Deptment of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Cristina Cardia
- Deptment of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - Octavio Díez-Sales
- Deptment of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain; Instiuto of Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Spain
| | - Anna Maria Fadda
- Deptment of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, CNBS, Via Ospedale 72, 09124 Cagliari, Italy
| | - Chiara Sinico
- Deptment of 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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Manca ML, Peris JE, Melis V, Valenti D, Cardia MC, Lattuada D, Escribano-Ferrer E, Fadda AM, Manconi M. Nanoincorporation of curcumin in polymer-glycerosomes and evaluation of their in vitro–in vivo suitability as pulmonary delivery systems. RSC Adv 2015. [DOI: 10.1039/c5ra24032h] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
This work was aimed at deliver curcumin to lungs by its incorporation into innovative vesicles glycerosomes and polymer-glycerosomes, the latter obtained combining glycerosomes with two polymers: sodium hyaluronate and trimethyl chitosan.
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Affiliation(s)
- Maria Letizia Manca
- Department Scienzedella Vita e dell’Ambiente
- CNBS
- University of Cagliari
- Cagliari
- Italy
| | - José E. Peris
- Department of Pharmacy and Pharmaceutical Technology
- University of Valencia
- Valencia 46100
- Spain
| | - Virginia Melis
- Department of Pharmacy and Pharmaceutical Technology
- University of Valencia
- Valencia 46100
- Spain
| | - Donatella Valenti
- Department Scienzedella Vita e dell’Ambiente
- CNBS
- University of Cagliari
- Cagliari
- Italy
| | | | - Donatella Lattuada
- Department of Medical Biotechnologies and Translational Medicine
- University of Milan
- Milan
- Italy
| | - Elvira Escribano-Ferrer
- Department of Pharmacy and Pharmaceutical Technology
- School of Pharmacy. Institute of Nanoscience and Nanotechnology
- University of Barcelona
- Barcelona
- Spain
| | - Anna Maria Fadda
- Department Scienzedella Vita e dell’Ambiente
- CNBS
- University of Cagliari
- Cagliari
- Italy
| | - Maria Manconi
- Department Scienzedella Vita e dell’Ambiente
- CNBS
- University of Cagliari
- Cagliari
- Italy
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Cardia MC, Sanna ML, Meleddu R, Distinto S, Yañez M, Viña D, Lamela M, Maccioni E. A Novel Series of 3,4-Disubstituted Dihydropyrazoles: Synthesis and Evaluation for MAO Enzyme Inhibition. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maria Cristina Cardia
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Maria Luisa Sanna
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Rita Meleddu
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
| | - Simona Distinto
- Dipartimento di Scienze Farmaco Biologiche; University “Magna Graecia” of Catanzaro; Campus “S. Venuta,”; 88100; Catanzaro (CZ); Italy
| | - Matilde Yañez
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Dolores Viña
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Manuel Lamela
- Departamento de Farmacología and Instituto de Farmacia Industrial; Universidad de Santiago de Compostela, Campus Universitario Sur; E-15782; Santiago de Compostela; Spain
| | - Elias Maccioni
- Dipartimento Farmaco Chimico Tecnologico; Università degli Studi di Cagliari; Via Ospedale; 72, 09124; Cagliari; Italy
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Maccioni E, Alcaro S, Cirilli R, Vigo S, Cardia MC, Sanna ML, Meleddu R, Yanez M, Costa G, Casu L, Matyus P, Distinto S. 3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles: a new scaffold for the selective inhibition of monoamine oxidase B. J Med Chem 2011; 54:6394-8. [PMID: 21777011 DOI: 10.1021/jm2002876] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles were designed, synthesized, and tested as inhibitors against human monoamine oxidase (MAO) A and B isoforms. Several compounds, obtained as racemates, were identified as selective MAO-B inhibitors. The enantiomers of some derivatives were separated by enantioselective HPLC and tested. The R-enantiomers always showed the highest activity. Docking study and molecular dynamic simulations demonstrated the putative binding mode. We conclude that these 1,3,4-oxadiazoles derivatives are promising reversible and selective MAO-B inhibitors.
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Affiliation(s)
- Elias Maccioni
- Dipartimento Farmaco Chimico Tecnologico, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
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15
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Esposito F, Meleddu R, Sanna ML, Distinto S, Corona A, Cannas V, Tramontano E, Cardia MC. Design and Synthesis of New Isatin Derivatives as HIV-1 Reverse Transcriptase Associated Ribonuclease H Inhibitors. Antiviral Res 2011. [DOI: 10.1016/j.antiviral.2011.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Cerioni G, Maccioni E, Cardia MC, Vigo S, Mocci F. Characterization of 2,5-diaryl-1,3,4-oxadiazolines by multinuclear magnetic resonance and density functional theory calculations. Investigation on a case of very remote Hammett correlation. Magn Reson Chem 2009; 47:727-733. [PMID: 19479946 DOI: 10.1002/mrc.2453] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two series of 2,5-diaryl-1,3,4-oxadiazolines have been studied by multinuclear magnetic resonance and density functional theory calculations. A full NMR spectroscopic characterization has been performed and excellent remote Hammett correlations (sigma(p) or sigma(p)+) have been found for para substitution in the two aryl rings through at least 11 bonds, notwithstanding the presence in the path of atoms that should act as insulators and a lack of correlation for some of the intermediate atoms. The computational investigation on the electronic delocalization, performed with the ACID (anisotropy of the induced current density) method, reveals indeed that electrons are delocalized in almost the entire molecule despite the presence of the insulators.
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Affiliation(s)
- Giovanni Cerioni
- Dipartimento di Scienze Chimiche, Università di Cagliari, Complesso Universitario, S.S. 554, Bivio per Sestu, I-09042 Monserrato (CA), Italy.
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17
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Cardia MC, Distinto S, Maccioni E, Plumitallo A, Sanna L, Sanna ML, Vigo S. Synthesis and characterization of new phthalhydrazothiazole derivatives: A preliminary investigation on their activity against hepatocellular carcinoma. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.138] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Cardia MC, Distinto S, Maccioni E, Plumitallo A, Sanna ML, Saddi M, Delogu A. Isonicotinoylhydrazothiazoles and isonicotinoyl-N4-substituted thiosemicarbazides: Synthesis, characterization, and anti-mycobacterial activity. J Heterocycl Chem 2006. [DOI: 10.1002/jhet.5570430529] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Plumitallo A, Cardia MC, Distinto S, DeLogu A, Maccioni E. Synthesis and anti-microbial activity evaluation of some new 1-benzoyl-isothiosemicarbazides. ACTA ACUST UNITED AC 2005; 59:945-52. [PMID: 15598429 DOI: 10.1016/j.farmac.2004.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2004] [Accepted: 07/27/2004] [Indexed: 11/21/2022]
Abstract
The synthesis of some aroylisothiosemicarbazides was accomplished and their biological activity against bacteria, fungi, and mycobacteria was investigated. Different synthetic pathways were followed according to the kind of substituents that were introduced on both the aroyl ring and the sulfur atom. Anti-bacterial activity was measured against Staphylococcus aureus, S. epidermidis, Streptococcus agalactiae and S. faecalis, Escherichia coli, and Salmonella typhi, while antifungal activity was evaluated against C. albicans. Two species, Mycobacterium tuberculosis H37RV and Mycobacterium avium ATCC19421, were employed to evaluate antimycobacterial activity.
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Affiliation(s)
- A Plumitallo
- Dipartimento Farmaco Chimico Tecnologico, Via Ospedale 72, 09124 Cagliari, Italy
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20
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De Logu A, Saddi M, Cardia MC, Borgna R, Sanna C, Saddi B, Maccioni E. In vitro activity of 2-cyclohexylidenhydrazo-4-phenyl-thiazole compared with those of amphotericin B and fluconazole against clinical isolates of Candida spp. and fluconazole-resistant Candida albicans. J Antimicrob Chemother 2005; 55:692-8. [PMID: 15772140 DOI: 10.1093/jac/dki084] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The aim of this study was to investigate the in vitro antifungal activity of an isothiosemicarbazone cyclic analogue against isolates of Candida spp. including fluconazole-resistant Candida albicans. METHODS We investigated the activity of 2-cyclohexylidenhydrazo-4-phenyl-thiazole (EM-01D2) against 114 clinical isolates of Candida spp., representing five different species, by microdilution, according to the NCCLS method 27-A. The activity against C. albicans biofilms was also investigated. Toxicity in vitro was evaluated by MTT reduction assay. RESULTS EM-01D2 demonstrated low toxicity, broad spectrum, fungicidal activity and was active against C. albicans and Candida krusei at concentrations lower than those shown by amphotericin B and fluconazole (P < 0.05). It maintained potent in vitro activity against fluconazole-resistant C. albicans isolates. Fungicidal activity occurred at concentrations 1-2 doubling dilutions greater than the corresponding MICs, and time-kill analysis indicated that a 99.9% loss of C. albicans viability occurred after 6 h of incubation in the presence of EM-01D2 at concentrations equal to four times the MIC. EM-01D2 was also active in inhibiting the growth of C. albicans ATCC 10231 biofilms, even though such inhibition occurred at concentrations higher than the MICs determined under planktonic growth conditions. However, when C. albicans biofilms were pre-exposed to subinhibitory concentrations of EM-01D2, a reduction of MIC50 of amphotericin B was observed. CONCLUSIONS Based on these results, EM-01D2 could represent a template for the development of novel fungicidal agents.
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Affiliation(s)
- Alessandro De Logu
- Dipartimento di Scienze e Tecnologie Biomediche, Sezione di Microbiologia Medica, Università di Cagliari, Cagliari, Italy.
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21
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Maccioni E, Cardia MC, Distinto S, Bonsignore L, De Logu A. An investigation of the biological effect of structural modifications of isothiosemicarbazones and their cyclic analogues. ACTA ACUST UNITED AC 2003; 58:951-9. [PMID: 13679191 DOI: 10.1016/s0014-827x(03)00154-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Several arylideneisothiosemicarbazones and arylidenehydrazothiazoles have been synthesised to obtain new antimicrobial agents. Their activity against both bacteria and fungi has been tested and some interesting informations about their biological activity have been obtained.
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Affiliation(s)
- E Maccioni
- Dipartimento Farmaco Chimico Tecnologico, Universita degli Studi di Cagliari, Via Ospedale, 72, 09124 Cagliari, Italy.
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Maccioni E, Cardia MC, Bonsignore L, Plumitallo A, Pellerano ML, De Logu A. Synthesis and anti-microbial activity of isothiosemicarbazones and cyclic analogues. Farmaco 2002; 57:809-17. [PMID: 12420876 DOI: 10.1016/s0014-827x(02)01288-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
It is known that some derivatives of both thiourea and thiosemicarbazide exhibit potent anti-microbial activity. In order to investigate the effects on the biological properties of structural modifications of such structures, we have synthesised and studied some arylidenisothiosemicarbazones. In this paper we report on the synthesis and structure-activity relationships of some isothiosemicarbazones, where the arylidene group has been replaced with a cycloalkyl group and the sulfur atom has been either differently substituted or enclosed in a thiazole ring.
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Affiliation(s)
- E Maccioni
- Dipartimento Farmaco Chimico Tecnologico, Cagliari, Italy.
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23
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Abstract
This work proposes to show the experience of posture training accomplished in the Paraíba State Telecommunication Company, using the knowledge of the Back School. The sample was composed of 12 operators, employees of the company, representing 31% of this population. The model applied in TELPA (Paraíba Telecommunication Company, Brazil) was based on the models of Sherbrooke, Canada, and of the School of Posture of Paraìba Federal University. Fifty-eight point four percent of participants showed a reduction of column pain, 25% improved the quality of the rest and the received training was considered enough for the learning of correct postures at work in 75% of the cases. The whole population approved of the training, and 83.3% of the cases considered that this training influenced their lives very positively.
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Affiliation(s)
- M C Cardia
- Production Engineering Department, Paraíba Federal University, Brazil.
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Abstract
9,10-Anthracenedione derivatives are known to exhibit a quite potent anticancer activity. It has also been reported that these compounds can be effectively employed in both antibacterial and antitrypanosomal therapy. Anthraquinones also exhibit some undesirable side effects, like cardiotoxicity. So many interactions seem to demonstrate that 9,10-anthracenediones strongly interact with a number of biological sites. In this paper we wish to report on the synthesis and the pharmaceutical activity of some newly synthesised derivatives containing the anthraquinone pharmacophore.
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Affiliation(s)
- M C Cardia
- Dipartimento Farmaco Chimico Tecnologico, Cagliari, Italy
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25
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Abstract
Arylidenimidazoles bearing a thioethereal function in the position 2 of the imidazole ring show good antimicrobial activity. We now report on the synthesis and the biological properties of some novel arylidenisothiosemicarbazones, structurally related to the arylideneiminoimidazoles of which they can be considered the linear precursors. Particular attention has been put on the influence of structural modifications on the biological activity.
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Affiliation(s)
- M C Cardia
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Italy
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26
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Cardia MC, Corda L, Fadda AM, Maccioni AM, Maccioni E, Plumitallo A. New cycloalkylpyrazoles as potential cyclooxygenase inhibitors. Farmaco 1998; 53:698-708. [PMID: 10205857 DOI: 10.1016/s0014-827x(98)00090-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study some cycloalkyl-3-(N-substituted carbamoyl)-1-phenylpyrazoles have been synthesized in order to screen their capability to inhibit human cyclooxygenase. The synthetic pathway is based on the well known property of nitrilimines to undergo 1,3-dipolar cycloaddition reactions. The structures of all the synthesized compounds have been elucidated by means of both analytical and spectroscopic methods.
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