1
|
Vinetti G, Rossi H, Bruseghini P, Corti M, Ferretti G, Piva S, Taboni A, Fagoni N. Functional Threshold Power Field Test Exceeds Laboratory Performance in Junior Road Cyclists. J Strength Cond Res 2023; 37:1815-1820. [PMID: 36692223 PMCID: PMC10448799 DOI: 10.1519/jsc.0000000000004471] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Vinetti, G, Rossi, H, Bruseghini, P, Corti, M, Ferretti, G, Piva, S, Taboni, A, and Fagoni, N. The functional threshold power field test exceeds laboratory performance in junior road cyclists. J Strength Cond Res 37(9): 1815–1820, 2023—The functional threshold power (FTP) field test is appealing for junior cyclists, but it was never investigated in this age category, and even in adults, there are few data on FTP collected in field conditions. Nine male junior road cyclists (16.9 ± 0.8 years) performed laboratory determination of maximal aerobic power (MAP), 4-mM lactate threshold (P4mM), critical power (CP), and the curvature constant (W ′), plus a field determination of FTP as 95% of the average power output during a 20-minute time trial in an uphill road. The level of significance was set at p < 0.05. Outdoor FTP (269 ± 34 W) was significantly higher than CP (236 ± 24 W) and P4mM (233 ± 23 W). The V ˙ O 2 peak of the field FTP test (66.9 ± 4.4 ml·kg−1·min−1) was significantly higher than the V ˙ O 2 peak assessed in the laboratory (62.7 ± 3.7 ml·kg−1·min−1). Functional threshold power was correlated, in descending order, with MAP (r = 0.95), P4mM (r = 0.94), outdoor and indoor V ˙ O 2 peak (r = 0.93 and 0.93, respectively), CP (r = 0.84), and W ′ (r = 0.66). It follows that in junior road cyclists, the FTP field test was feasible and related primarily to aerobic endurance parameters and secondarily, but notably, to W ′. However, the FTP field test significantly exceeded all laboratory performance tests. When translating laboratory results to outdoor uphill conditions, coaches and sport scientists should consider this discrepancy, which may be particularly enhanced in this cycling age category.
Collapse
Affiliation(s)
- Giovanni Vinetti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
- Institute of Mountain Emergency Medicine, Eurac Research, Bolzano, Italy
| | - Huber Rossi
- Marathon Sport Medical Center, Brescia, Italy
| | - Paolo Bruseghini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Marco Corti
- Department of Human Sciences and Promotion of the Quality of Life, University San Raffaele Roma, Rome, Italy; and
| | - Guido Ferretti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Simone Piva
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Anna Taboni
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Nazzareno Fagoni
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| |
Collapse
|
2
|
Claramunt M, Idelssonhn S, James M, Corti M, Anton V, Byrne B, Manera JD. P.84 Gait analysis of patients with Pompe disease using a portable system. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.143] [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: 11/06/2022]
|
3
|
Ibrahim MF, Robustelli Della Cuna FS, Villa C, Corti M, Amin HIM, Faris P, Grisoli P, Brusotti G. A chemometric assessment and profiling of the essential oils from Hibiscus sabdariffa L. from Kurdistan, Iraq. Nat Prod Res 2022; 36:2409-2412. [PMID: 33059475 DOI: 10.1080/14786419.2020.1833198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Hibiscus sabdariffa L. is a tropical plant belonging to the Malvaceae family. In Kurdistan, the Autonomous Region of Iraq, water infusion of H. sabdariffa calyces is recommended for the treatment of hypotension and the common cold. Three distillation techniques: hydrodistillation (HD), steam distillation (SD), and solvent-free microwave-assisted extraction (SFME) have been compared to obtain the essential oils from calyces. The composition of the extracts was investigated by GC-FID and GC-MS. A total of 62 compounds have been identified, from which 55 components were found in HD distillates (95.75%), 37 components in SFME (96.06%), and 29 in SD (99.63%). Chemometric tools were applied to optimise and evidence the relation between distillation techniques and composition of the obtained essential oils as an investigation for the essential oils commercialisation approach of Hibiscus sabdariffa L. that have been done from a long time using conventional hydrodistillation in the local Herbal and Tea markets in Kurdistan.
Collapse
Affiliation(s)
| | | | - Carla Villa
- Department of Pharmacy, (DIFAR), University of Genova, Genova, Italy
| | - Marco Corti
- Department of Drug Science, University of Pavia, Pavia, Italy
| | - Hawraz Ibrahim M Amin
- Department of Chemistry, College of Science, Salahaddin University-Erbil, Iraq.,Department of Pharmacy, Paitaxt Technical Institute-Private, Erbil, Iraq
| | - Pawan Faris
- Department of Biology, Cihan University-Erbil, Erbil, Iraq
| | - Pietro Grisoli
- Department of Drug Science, University of Pavia, Pavia, Italy
| | - Gloria Brusotti
- Department of Drug Science, University of Pavia, Pavia, Italy
| |
Collapse
|
4
|
Rao V, Byrne B, Shieh P, Salabarria S, Berthy J, Corti M, Redican S, Lawrence J, Brown K, Shanks C, Spector S, Gonzalez P, Schneider J, Morris C, Clary C. CLINICAL TRIAL HIGHLIGHTS. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
5
|
Quadrelli P, Corti M, Leusciatti M, Moiola M, Mella M. Nitrosocarbonyl Carbohydrate Derivatives: Hetero Diels–Alder and Ene Reaction Products for Useful Organic Synthesis. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1707276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe generation and trapping of two new nitrosocarbonyl intermediates bearing carbohydrate-based chiral substituents is achieved by the mild oxidation of the corresponding nitrile oxides with tertiary amine N-oxides. Their capture with suitable dienes and alkenes afforded the corresponding hetero Diels–Alder cycloadducts and ene adducts from fair to excellent yields. The entire methodology looks highly promising by the easy conversion of aldoximes into hydroxymoyl halides, widening the access to nitrosocarbonyls, versatile tools in organic synthesis.
Collapse
Affiliation(s)
- Paolo Quadrelli
- University of Pavia, Department of Chemistry
- University of Pavia, Department of Chemistry
| | | | | | | | | |
Collapse
|
6
|
Corti M, Chiara R, Romani L, Mannucci B, Malavasi L, Quadrelli P. g-C 3N 4/metal halide perovskite composites as photocatalysts for singlet oxygen generation processes for the preparation of various oxidized synthons. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02352c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Singlet oxygen generated by g-C3N4/metal halide perovskite composites as photocatalysts in organic oxidation reactions.
Collapse
Affiliation(s)
- Marco Corti
- University of Pavia
- Department of Chemistry
- 27100 – Pavia
- Italy
| | - Rossella Chiara
- University of Pavia
- Department of Chemistry
- 27100 – Pavia
- Italy
| | - Lidia Romani
- University of Pavia
- Department of Chemistry
- 27100 – Pavia
- Italy
| | - Barbara Mannucci
- University of Pavia
- Centro Grandi Strumenti (CGS)
- 27100 – Pavia
- Italy
| | | | - Paolo Quadrelli
- University of Pavia
- Department of Chemistry
- 27100 – Pavia
- Italy
| |
Collapse
|
7
|
Abstract
Pompe disease (glycogen storage disease type II) is caused by mutations in acid α-glucosidase (GAA) resulting in lysosomal pathology and impairment of the muscular and cardio-pulmonary systems. Enzyme replacement therapy (ERT), the only approved therapy for Pompe disease, improves muscle function by reducing glycogen accumulation but this approach entails several limitations including a short drug half-life and an antibody response that results in reduced efficacy. To address these limitations, new treatments such as gene therapy are under development to increase the intrinsic ability of the affected cells to produce GAA. Key components to gene therapy strategies include the choice of vector, promoter, and the route of administration. The efficacy of gene therapy depends on the ability of the vector to drive gene expression in the target tissue and also on the recipient's immune tolerance to the transgene protein. In this review, we discuss the preclinical and clinical studies that are paving the way for the development of a gene therapy strategy for patients with early and late onset Pompe disease as well as some of the challenges for advancing gene therapy.
Collapse
Affiliation(s)
- S M Salabarria
- Department of Pediatrics and Powell Gene Therapy Center, University of Florida, Gainesville, Floria, USA
| | - J Nair
- Department of Pediatrics and Powell Gene Therapy Center, University of Florida, Gainesville, Floria, USA
| | - N Clement
- Department of Pediatrics and Powell Gene Therapy Center, University of Florida, Gainesville, Floria, USA
| | - B K Smith
- Department of Physical Therapy and Center for Respiratory Research and Rehabilitation, University of Florida, Gainesville, Florida, USA
| | - N Raben
- Laboratory of Protein Trafficking and Organelle Biology, Cell and Developmental Biology Center, National Heart, Lung and Blood Institute, NIH, Bethesda, Maryland, USA
| | - D D Fuller
- Department of Physical Therapy and Center for Respiratory Research and Rehabilitation, University of Florida, Gainesville, Florida, USA
| | - B J Byrne
- Department of Pediatrics and Powell Gene Therapy Center, University of Florida, Gainesville, Floria, USA
| | - M Corti
- Department of Pediatrics and Powell Gene Therapy Center, University of Florida, Gainesville, Floria, USA
| |
Collapse
|
8
|
Sferrazza G, Corti M, Brusotti G, Pierimarchi P, Temporini C, Serafino A, Calleri E. Nature-derived compounds modulating Wnt/ β -catenin pathway: a preventive and therapeutic opportunity in neoplastic diseases. Acta Pharm Sin B 2020; 10:1814-1834. [PMID: 33163337 PMCID: PMC7606110 DOI: 10.1016/j.apsb.2019.12.019] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [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: 07/22/2019] [Revised: 11/08/2019] [Accepted: 11/08/2019] [Indexed: 02/07/2023] Open
Abstract
The Wnt/β-catenin signaling is a conserved pathway that has a crucial role in embryonic and adult life. Dysregulation of the Wnt/β-catenin pathway has been associated with diseases including cancer, and components of the signaling have been proposed as innovative therapeutic targets, mainly for cancer therapy. The attention of the worldwide researchers paid to this issue is increasing, also in view of the therapeutic potential of these agents in diseases, such as Parkinson's disease (PD), for which no cure is existing today. Much evidence indicates that abnormal Wnt/β-catenin signaling is involved in tumor immunology and the targeting of Wnt/β-catenin pathway has been also proposed as an attractive strategy to potentiate cancer immunotherapy. During the last decade, several products, including naturally occurring dietary agents as well as a wide variety of products from plant sources, including curcumin, quercetin, berberin, and ginsenosides, have been identified as potent modulators of the Wnt/β-catenin signaling and have gained interest as promising candidates for the development of chemopreventive or therapeutic drugs for cancer. In this review we make an overview of the nature-derived compounds reported to have antitumor activity by modulating the Wnt/β-catenin signaling, also focusing on extraction methods, chemical features, and bio-activity assays used for the screening of these compounds.
Collapse
Affiliation(s)
- Gianluca Sferrazza
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | - Marco Corti
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
| | - Gloria Brusotti
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
| | - Pasquale Pierimarchi
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | | | - Annalucia Serafino
- Institute of Translational Pharmacology, National Research Council of Italy, Rome 03018, Italy
| | - Enrica Calleri
- Department of Drug Sciences, University of Pavia, Pavia 27100, Italy
| |
Collapse
|
9
|
Sferrazza G, Corti M, Andreola F, Giovannini D, Nicotera G, Zonfrillo M, Serra M, Tengattini S, Calleri E, Brusotti G, Pierimarchi P, Serafino A. Bioassay-Guided Isolation of Nigracin, Responsible for the Tissue Repair Properties of Drypetes Klainei Stem Bark. Front Pharmacol 2020; 10:1541. [PMID: 32038234 PMCID: PMC6989535 DOI: 10.3389/fphar.2019.01541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/03/2019] [Accepted: 11/27/2019] [Indexed: 01/08/2023] Open
Abstract
Drypetes klainei Pierre ex Pax is used in Cameroon by Baka people in the wound healing process and for the treatment of burns. In a previous paper we demonstrated the ability of both water (WE) and defatted methanol (DME) extracts to accelerate scratch wound closure in fibroblast cultures, thus validating the traditional use of D. klainey stem bark in the treatment of skin lesions. In this work we carried out a bioassay-guided fractionation of the most active DME, which exhibited in vitro efficacy in accelerating wound healing process, in order to isolate and identify the compound/s responsible for the assessed biological activity. HPLC was used for the metabolite profiling of DME and fractions (analytical) and for the isolation of the bioactive compound (semi-preparative). MS analyses and NMR spectroscopy were used for identifying the isolated compound. The abilities of treatments in accelerating wound healing were studied on murine fibroblasts in terms of cell viability and cell migration (scratch wound-healing assay). The results obtained allowed to unambiguously identify the isolated bioactive compound as nigracin, a known phenolic glycoside firstly isolated and characterized from bark and leaves of Populus nigra in 1967. However, this is the first time that nigracin is identified in the Drypetes genus and that a wound healing activity is demonstrated for this molecule. Specifically, we demonstrated that nigracin significantly stimulates fibroblast growth and improves cell motility and wound closure of fibroblast monolayer in a dose-dependent manner, without any toxicity at the concentrations tested, and is still active at very low doses. This makes the molecule particularly attractive as a possible candidate for developing new therapeutic options for wound care.
Collapse
Affiliation(s)
- Gianluca Sferrazza
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Marco Corti
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Federica Andreola
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Daniela Giovannini
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Giuseppe Nicotera
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Manuela Zonfrillo
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Massimo Serra
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Sara Tengattini
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Enrica Calleri
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Gloria Brusotti
- Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Pasquale Pierimarchi
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| | - Annalucia Serafino
- Institute of Translational Pharmacology-National Research Council of Italy, Rome, Italy
| |
Collapse
|
10
|
Corti M, Calleri E, Perteghella S, Ferrara A, Tamma R, Milanese C, Mandracchia D, Brusotti G, Torre ML, Ribatti D, Auricchio F, Massolini G, Tripodo G. Polyacrylate/polyacrylate-PEG biomaterials obtained by high internal phase emulsions (HIPEs) with tailorable drug release and effective mechanical and biological properties. Mater Sci Eng C Mater Biol Appl 2019; 105:110060. [PMID: 31546370 DOI: 10.1016/j.msec.2019.110060] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 04/10/2019] [Revised: 07/22/2019] [Accepted: 08/07/2019] [Indexed: 01/03/2023]
Abstract
The paper focuses on the preparation of polyacrylate based biomaterials designed as patches for dermal/transdermal drug delivery using materials obtained by the high internal phase emulsion (HIPE) technique. In particular, butyl acrylate and glycidyl methacrylate were selected, respectively, as backbone and functional monomer while two different crosslinkers, bifunctional or trifunctional, were used to form the covalent network. The influence of PEG on the main properties of the materials was also investigated. The obtained materials show a characteristic and interconnected internal structure as confirmed by SEM studies. By an industrial point of view, an interesting feature of this system is that it can be shaped as needed, in any form and thickness. The physiochemically characterized materials showed a tailorable curcumin (model of hydrophobic drugs) drug release, effective mechanical properties and cell viability and resulted neither pro nor anti-angiogenic as demonstrated in vivo by the chick embryo choriallantoic membrane (CAM) assay. Based on these results, the obtained polyHIPEs could be proposed as devices for dermal/transdermal drug delivery and/or for the direct application on wounded skin.
Collapse
Affiliation(s)
- Marco Corti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy
| | - Enrica Calleri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy.
| | - Sara Perteghella
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy
| | - Anna Ferrara
- Department of Civil Engineering and Architecture, University of Pavia, Via Adolfo Ferrata 3, Pavia 27100, Italy
| | - Roberto Tamma
- Department of Basic Medical Sciences, Neurosciences, and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare 11, Bari 70100, Italy
| | - Chiara Milanese
- C.S.G.I. - Department of Chemistry, Physical-Chemistry Section, University of Pavia, Viale Taramelli 16, Pavia 27100, Italy
| | - Delia Mandracchia
- Department of Pharmacy-Drug Sciences, University of Bari "Aldo Moro", Via Orabona 4, Bari 70125, Italy
| | - Gloria Brusotti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy
| | - Maria Luisa Torre
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences, and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare 11, Bari 70100, Italy
| | - Ferdinando Auricchio
- Department of Civil Engineering and Architecture, University of Pavia, Via Adolfo Ferrata 3, Pavia 27100, Italy
| | - Gabriella Massolini
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy
| | - Giuseppe Tripodo
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12-14, Pavia 27100, Italy.
| |
Collapse
|
11
|
Pedrali A, Robustelli della Cuna FS, Grisoli P, Corti M, Brusotti G. Chemical Composition and Antimicrobial Activity of the Essential Oil From the Bark of Xylopia hypolampra. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19857022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Alice Pedrali
- Department of Drug Sciences, University of Pavia, Italy
| | | | | | - Marco Corti
- Department of Drug Sciences, University of Pavia, Italy
| | | |
Collapse
|
12
|
Corti M, Rinaldi F, Monti D, Ferrandi EE, Marrubini G, Temporini C, Tripodo G, Kupfer T, Conti P, Terreni M, Massolini G, Calleri E. Development of an integrated chromatographic system for ω-transaminase-IMER characterization useful for flow-chemistry applications. J Pharm Biomed Anal 2019; 169:260-268. [PMID: 30884324 DOI: 10.1016/j.jpba.2019.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 12/21/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 12/23/2022]
Abstract
An integrated chromatographic system was developed to rapidly investigate the biocatalytic properties of ω-transaminases useful for the synthesis of chiral amines. ATA-117, an (R)-selective ω-transaminase was selected as a proof of concept. The enzyme was purified and covalently immobilized on an epoxy monolithic silica support to create an immobilized enzyme reactor (IMER). Reactor efficiency was evaluated in the conversion of a model substrate. The IMER was coupled through a switching valve to an achiral analytical column for separation and quantitation of the transamination products. The best conditions of the transaminase-catalyzed bioconversion were optimized by a design of experiments (DoE) approach. The production of (R)-1-(4-methoxyphenyl)propan-2-amine and (R)-1-methyl-3-phenylpropylamine, intermediates for the synthesis of the bronchodilator formoterol and the antihypertensive dilevalol respectively, was achieved in the presence of different amino donors. The enantiomeric excess (ee) was determined off-line by developing a derivatization procedure using Nα-(2,4-dinitro-5-fluorophenyl)-L-alaninamide reagent. The most satisfactory conversion yields were 60% for (R)-1-(4-methoxyphenyl)propan-2-amine and 29% for (R)-1-methyl-3-phenylpropylamine, using isopropylamine as amino donor. The enantiomeric excess of the reactions were 84%R and 99%R, respectively.
Collapse
Affiliation(s)
- M Corti
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - F Rinaldi
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - D Monti
- Istituto di Chimica del Riconoscimento Molecolare, CNR, Via M. Bianco 9, 20131 Milan, Italy
| | - E E Ferrandi
- Istituto di Chimica del Riconoscimento Molecolare, CNR, Via M. Bianco 9, 20131 Milan, Italy
| | - G Marrubini
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - C Temporini
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - G Tripodo
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - T Kupfer
- Merck KGaA, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - P Conti
- Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, Italy
| | - M Terreni
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - G Massolini
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - E Calleri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
| |
Collapse
|
13
|
Brocca P, Rondelli V, Corti M, Del Favero E, Deleu M, Cantù L. Interferometric investigation of the gas-state monolayer of mono-rhamnolipid adsorbing at an oil/water interface. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.121] [Citation(s) in RCA: 5] [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: 11/25/2022]
|
14
|
Benchetrit A, Fernandez M, Bava A, Corti M, Porteiro N, Peralta LM. Clinical and epidemiological features of the chronic Trypanosoma cruzi infection in patients with HIV/AIDS in Buenos Aires, Argentina. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4131] [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: 11/16/2022] Open
|
15
|
Fernandez M, Besuschio S, Nicita D, Latini V, Biondi M, Garcia J, Corti M, Schijman A, Burgos J. Molecular evaluation of Chagas disease reactivation and treatment follow-up in HIV coinfected patients. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4147] [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: 11/27/2022] Open
|
16
|
Simioli F, Cárdenas G, Campitelli A, Corti M. High incidence of neoplasic diseases in ganglionary biopsies of assisted patiens in a reference Hospital of infectious diseases. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3797] [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: 10/28/2022] Open
|
17
|
Abstract
Cardiovascular disease and the inadequacy of delivered dialysis are the main factors determining morbidity and mortality in dialysis patients. We have already demonstrated that a conductivity kinetic model makes it possible to match interdialytic sodium loading and intradialytic sodium removal (the main factor determining cardiovascular morbidity) without the need for blood samples and, thus, in routine clinical practice. The aim of the present study was to test the possibility of using the conductivity method also to determine Kt/v without blood or dialysate sampling. In 18 steady-state patients, the urea distribution volume (V) was kinetically determined once using ionic dialysance (D) values instead of those of effective urea clearance. One month later, the Kt/V was determined by using the current D and T values and the predetermined V (Dt/V), then compared with the equilibrated Kt/V computed by means of the SPVV kinetic model (eqKt/V). The mean value of Dt/V was 1.18 ± 0.15; while of eqKt/V it was 1.18 ± 0.16, with a mean difference of 0.00 ± 0.07. The conductivity method therefore seems to be very promising not only for monitoring the sodium balance, but also for quantifying delivered dialysis. Since its simplicity and low-cost make it suitable for use at each dialysis session, the conductivity method could therefore lead to significant progress in dialytic practice by contributing to the elimination of the two main causes of morbidity and mortality in dialysis patients.
Collapse
Affiliation(s)
- L. Del Vecchio
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - S. Di Filippo
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - S. Andrulli
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - C. Manzoni
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - M. Corti
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - F. Barbisoni
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| | - F. Locatelli
- Department of Nephrology and Dialysis, Lecco Hospital, Lecco - Italy
| |
Collapse
|
18
|
Tripodo G, Marrubini G, Corti M, Brusotti G, Milanese C, Sorrenti M, Catenacci L, Massolini G, Calleri E. Acrylate-based poly-high internal phase emulsions for effective enzyme immobilization and activity retention: from computationally-assisted synthesis to pharmaceutical applications. Polym Chem 2018. [DOI: 10.1039/c7py01626c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PolyHIPE functional materials were chemically conjugated with a model enzyme. It retained its activity upon flow as demonstrated by the conversion of a specific substrate.
Collapse
Affiliation(s)
- G. Tripodo
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - G. Marrubini
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - M. Corti
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - G. Brusotti
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - C. Milanese
- C.S.G.I. - Department of Chemistry
- Physical-Chemistry Section
- University of Pavia
- Pavia
- Italy
| | - M. Sorrenti
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - L. Catenacci
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - G. Massolini
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| | - E. Calleri
- Department of Drug Sciences
- University of Pavia
- Pavia
- Italy
| |
Collapse
|
19
|
Colon-Perez LM, Triplett W, Bohsali A, Corti M, Nguyen PT, Patten C, Mareci TH, Price CC. A majority rule approach for region-of-interest-guided streamline fiber tractography. Brain Imaging Behav 2017; 10:1137-1147. [PMID: 26572144 DOI: 10.1007/s11682-015-9474-5] [Citation(s) in RCA: 17] [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] [Indexed: 12/01/2022]
Abstract
Hand-drawn gray matter regions of interest (ROI) are often used to guide the estimation of white matter tractography, obtained from diffusion-weighted magnetic resonance imaging (DWI), in healthy and in patient populations. However, such ROIs are vulnerable to rater bias of the individual segmenting the ROIs, scan variability, and individual differences in neuroanatomy. In this report, a "majority rule" approach is introduced for ROI segmentation used to guide streamline tractography in white matter structures. DWI of one healthy participant was acquired in ten separate sessions using a 3 T scanner over the course of a month. Four raters identified ROIs within the left hemisphere [Cerebral Peduncle (CPED); Internal Capsule (IC); Hand Portion of the Motor Cortex, or Hand Bump, (HB)] using a group-established standard operating procedure for ROI definition to guide the estimation of streamline tracts within the corticospinal tract (CST). Each rater traced the ROIs twice for each scan session. The overlap of each rater's two ROIs was used to define a representative ROI for each rater. These ROIs were combined to create a "majority rules" ROI, in which the rule requires that each voxel is selected by at least three of four raters. Reproducibility for ROIs and CST segmentations were analyzed with the Dice Similarity Coefficient (DSC). Intra-rater reliability for each ROI was high (DSCs ≥ 0.83). Inter-rater reliability was moderate to adequate (DSC range 0.54-0.75; lowest for IC). Using intersected majority rules ROIs, the resulting CST showed improved overlap (DSC = 0.82) in the estimated streamline tracks for the ten sessions. Despite high intra-rater reliability, there was lower inter-rater reliability consistent with the expectation of rater bias. Employing the majority rules method improved reliability in the overlap of the CST.
Collapse
Affiliation(s)
- L M Colon-Perez
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA
| | - W Triplett
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - A Bohsali
- Veterans Affairs Brain Rehabilitation Research Center, Malcolm Randall VA Center, Gainesville, FL, USA
| | - M Corti
- Department of Pediatrics, University of Florida, Gainesville, FL, USA
| | - P T Nguyen
- Department Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - C Patten
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - T H Mareci
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL, USA.
| | - C C Price
- Department Clinical and Health Psychology, University of Florida, Gainesville, FL, USA.
| |
Collapse
|
20
|
Barco S, Corti M, Trinchero A, Picchi C, Ambaglio C, Konstantinides SV, Dentali F, Barone M. Survival and recurrent venous thromboembolism in patients with first proximal or isolated distal deep vein thrombosis and no pulmonary embolism. J Thromb Haemost 2017; 15:1436-1442. [PMID: 28439954 DOI: 10.1111/jth.13713] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [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: 12/04/2016] [Indexed: 12/11/2022]
Abstract
Essentials The long-term risk of recurrence and death after distal deep vein thrombosis (DVT) is uncertain. We included subjects with first proximal or isolated distal DVT (IDDVT) and no pulmonary embolism. The risk of symptomatic and asymptomatic recurrence is lower after IDDVT (vs. proximal). IDDVT may be associated with a lower long-term risk of death, especially after unprovoked DVT. SUMMARY Background A few studies have focused on the risk of recurrence after first acute isolated distal deep vein thrombosis (IDDVT) compared with proximal DVT (PDVT), whereas the incremental risk of death has never been explored beyond the first 3 years after acute event. Methods Our single-center cohort study included patients with first symptomatic acute PDVT or IDDVT. Patients were excluded if they had concomitant pulmonary embolism (PE) or prior venous thromboembolism. The primary outcomes were symptomatic objectively diagnosed recurrent PDVT or PE and all-cause death. Results In total, 4759 records were screened and 831 subjects included: 202 had symptomatic IDDVT and 629 had PDVT. The median age was 66 years and 50.5% were women. A total of 125 patients had recurrent PDVT or PE during 3175 patient-years of follow-up: 109 events occurred after PDVT (17.3%) and 16 after IDDVT (7.9%). Annual recurrence rates were 4.5% (95% confidence interval [CI], 3.7-5.4%) and 2.0% (95% CI, 1.1-3.2%), respectively, for an adjusted hazard ratio (aHR) for IDDVT patients of 0.32 (95% CI, 0.19-0.55). Death occurred in 263 patients (31.6% [95% CI, 28.6-34.9%]) during 5469 patient-years of follow-up for an overall annual incidence rate of 4.8% (95% CI, 4.2-5.4%). The mortality rate was 33.5% (n = 211) in PDVT patients and 25.7% (n = 52) in IDDVT patients. The long-term hazard of death appeared lower for IDDVT patients (aHR, 0.75 [95% CI, 0.55-1.02]), especially after unprovoked events (aHR, 0.58 [95% CI, 0.26-1.31]). Conclusions Compared with PDVT, IDDVT patients were at a lower risk of recurrent VTE. The risk of death appeared lower after IDDVT during a median follow-up of 7.6 years.
Collapse
Affiliation(s)
- S Barco
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University-Mainz, Mainz, Germany
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
| | - M Corti
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
| | - A Trinchero
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University-Mainz, Mainz, Germany
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
| | - C Picchi
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
- Department of Internal Medicine, Presidio Ospedaliero 'Macedonio Melloni', ASST FBF 'Sacco', Milan, Italy
| | - C Ambaglio
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
| | - S V Konstantinides
- Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University-Mainz, Mainz, Germany
- Department of Cardiology, Democritus University of Thrace, Alexandroupolis, Greece
| | - F Dentali
- Department of Clinical and Experimental Medicine, Ospedale di Circolo, Insubria University, Varese, Italy
| | - M Barone
- Department of Internal Medicine, Fondazione IRCCS Policlinico 'San Matteo', Pavia, Italy
| |
Collapse
|
21
|
|
22
|
Boni A, Basini A, Capolupo L, Innocenti C, Corti M, Cobianchi M, Orsini F, Guerrini A, Sangregorio C, Lascialfari A. Optimized PAMAM coated magnetic nanoparticles for simultaneous hyperthermic treatment and contrast enhanced MRI diagnosis. RSC Adv 2017. [DOI: 10.1039/c7ra07589h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the synthesis and characterization of multi-functional monodisperse superparamagnetic Magnetic NanoParticles, MNPs, able to act as contrast agents for magnetic resonance and Magnetic Fluid Hyperthermia (MFH) mediators.
Collapse
Affiliation(s)
- A. Boni
- Center for Nanotechnology Innovation @NEST
- Istituto Italiano di Tecnologia
- 12 – 56127 Pisa
- Italy
| | - A. M. Basini
- Dipartimento di Fisica and INSTM
- Università degli studi di Milano
- Italy
| | - L. Capolupo
- Center for Nanotechnology Innovation @NEST
- Istituto Italiano di Tecnologia
- 12 – 56127 Pisa
- Italy
| | - C. Innocenti
- Department of Chemistry “Ugo Shiff”
- University of Florence and INSTM
- Firenze
- Italy
| | - M. Corti
- Dipartimento di Fisica and INSTM
- Università degli studi di Milano
- Italy
| | - M. Cobianchi
- Dipartimento di Fisica and INSTM
- Università degli studi di Pavia
- Italy
| | - F. Orsini
- Dipartimento di Fisica and INSTM
- Università degli studi di Milano
- Italy
| | - A. Guerrini
- Department of Chemistry “Ugo Shiff”
- University of Florence and INSTM
- Firenze
- Italy
| | - C. Sangregorio
- Department of Chemistry “Ugo Shiff”
- University of Florence and INSTM
- Firenze
- Italy
- CNR-ICCOM and INSTM
| | - A. Lascialfari
- Dipartimento di Fisica and INSTM
- Università degli studi di Milano
- Italy
| |
Collapse
|
23
|
Brocca P, Rondelli V, Mallamace F, Di Bari MT, Deriu A, Lohstroh W, Del Favero E, Corti M, Cantu' L. Water response to ganglioside GM1 surface remodelling. Biochim Biophys Acta Gen Subj 2016; 1861:3573-3580. [PMID: 27155581 DOI: 10.1016/j.bbagen.2016.04.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 01/14/2016] [Revised: 04/20/2016] [Accepted: 04/27/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Gangliosides are biological glycolipids participating in rafts, structural and functional domains of cell membranes. Their headgroups are able to assume different conformations when packed on the surface of an aggregate, more lying or standing. Switching between different conformations is possible, and is a collective event. Switching can be induced, in model systems, by concentration or temperature increase, then possibly involving ganglioside-water interaction. In the present paper, the effect of GM1 ganglioside headgroup conformation on the water structuring and interactions is addressed. METHODS Depolarized Rayleigh Scattering, Raman Scattering, Quasielastic Neutron Scattering and NMR measurements were performed on GM1 ganglioside solutions, focusing on solvent properties. RESULTS All used techniques agree in evidencing differences in the structure and dynamics of solvent water on different time-and-length scales in the presence of either GM1 headgroup conformations. CONCLUSIONS In general, all results indicate that both the structural properties of solvent water and its interactions with the sugar headgroups of GM1 respond to surface remodelling. The extent of this modification is much higher than expected and, interestingly, ganglioside headgroups seem to turn from cosmotropes to chaotropes upon collective rearrangement from the standing- to the lying-conformation. SIGNIFICANCE In a biological perspective, water structure modulation could be one of the physico-chemical elements contributing to the raft strategy, both for rafts formation and persistence and for their functional aspects. In particular, the interaction with approaching bodies could be favoured or inhibited or triggered by complex-sugar-sequence conformational switch. This article is part of a Special Issue entitled "Science for Life" Guest Editor: Dr. Austen Angell, Dr. Salvatore Magazù and Dr. Federica Migliardo.
Collapse
Affiliation(s)
- P Brocca
- Dept. of Medical Biotechnologies and Traslational Medicine, University of Milano, LITA, Via Fratelli Cervi, 93, 20090 Segrate, Italy
| | - V Rondelli
- Dept. of Medical Biotechnologies and Traslational Medicine, University of Milano, LITA, Via Fratelli Cervi, 93, 20090 Segrate, Italy
| | - F Mallamace
- Dept. of Physics and Earth Sciences, University of Messina, Viale F. Stagno D'Alcontres, 31, 98166 Messina, Italy
| | - M T Di Bari
- Dept. of Physics and Earth Sciences, University of Parma, Parco Area delle Scienze, 7/A, 43124 Parma, Italy
| | - A Deriu
- Dept. of Physics and Earth Sciences, University of Parma, Parco Area delle Scienze, 7/A, 43124 Parma, Italy
| | - W Lohstroh
- Heinz Maier-Leibnitz Zentrum, Technische Universität München, Lichtenbergstraße 1, Garching, Germany
| | - E Del Favero
- Dept. of Medical Biotechnologies and Traslational Medicine, University of Milano, LITA, Via Fratelli Cervi, 93, 20090 Segrate, Italy
| | - M Corti
- Dept. of Medical Biotechnologies and Traslational Medicine, University of Milano, LITA, Via Fratelli Cervi, 93, 20090 Segrate, Italy
| | - L Cantu'
- Dept. of Medical Biotechnologies and Traslational Medicine, University of Milano, LITA, Via Fratelli Cervi, 93, 20090 Segrate, Italy
| |
Collapse
|
24
|
Bovolenta S, Saccà E, Corti M, Villa D. Effect of supplement level on herbage intake and feeding behaviour of Italian Brown cows grazing on Alpine pasture. Italian Journal of Animal Science 2016. [DOI: 10.4081/ijas.2005.2s.197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
25
|
Orlando T, Mannucci S, Fantechi E, Conti G, Tambalo S, Busato A, Innocenti C, Ghin L, Bassi R, Arosio P, Orsini F, Sangregorio C, Corti M, Casula MF, Marzola P, Lascialfari A, Sbarbati A. Characterization of magnetic nanoparticles from Magnetospirillum Gryphiswaldense as potential theranostics tools. Contrast Media Mol Imaging 2015; 11:139-45. [PMID: 26598395 DOI: 10.1002/cmmi.1673] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 08/29/2015] [Accepted: 10/11/2015] [Indexed: 12/17/2022]
Abstract
We investigated the theranostic properties of magnetosomes (MNs) extracted from magnetotactic bacteria, promising for nanomedicine applications. Besides a physico-chemical characterization, their potentiality as mediators for magnetic fluid hyperthermia and contrast agents for magnetic resonance imaging, both in vitro and in vivo, are here singled out. The MNs, constituted by magnetite nanocrystals arranged in chains, show a superparamagnetic behaviour and a clear evidence of Verwey transition, as signature of magnetite presence. The phospholipid membrane provides a good protection against oxidation and the MNs oxidation state is stable over months. Using an alternate magnetic field, the specific absorption rate was measured, resulting among the highest reported in literature. The MRI contrast efficiency was evaluated by means of the acquisition of complete NMRD profiles. The transverse relaxivity resulted as high as the one of a former commercial contrast agent. The MNs were inoculated into an animal model of tumour and their presence was detected by magnetic resonance images two weeks after the injection in the tumour mass.
Collapse
Affiliation(s)
- T Orlando
- Department of Physics and INSTM, Università degli Studi di Pavia, Pavia, I-27100, Italy.,Research Group EPR Spectroscopy, Max Planck Institute for Biophysical Chemistry, Göttingen, D-37077, Germany
| | - S Mannucci
- Department of Neurological and Movement Science and INSTM, University of Verona, Verona, I-37134, Italy
| | - E Fantechi
- Department of Chemistry, 'Ugo Schiff' University of Florence and INSTM, Sesto Fiorentino (FI), I-50019, Italy
| | - G Conti
- Department of Neurological and Movement Science and INSTM, University of Verona, Verona, I-37134, Italy
| | - S Tambalo
- Department of Neurological and Movement Science and INSTM, University of Verona, Verona, I-37134, Italy
| | - A Busato
- Department of Neurological and Movement Science and INSTM, University of Verona, Verona, I-37134, Italy
| | - C Innocenti
- Department of Chemistry, 'Ugo Schiff' University of Florence and INSTM, Sesto Fiorentino (FI), I-50019, Italy
| | - L Ghin
- Department of Biotechnology and INSTM, University of Verona, Verona, I-37134, Italy
| | - R Bassi
- Department of Biotechnology and INSTM, University of Verona, Verona, I-37134, Italy
| | - P Arosio
- Department of Physics and INSTM, Università degli Studi di Milano, Milano, I-20133, Italy
| | - F Orsini
- Department of Physics and INSTM, Università degli Studi di Milano, Milano, I-20133, Italy
| | - C Sangregorio
- CNR-ICCOM and INSTM, Sesto Fiorentino (FI), I-50019, Italy
| | - M Corti
- Department of Physics and INSTM, Università degli Studi di Pavia, Pavia, I-27100, Italy
| | - M F Casula
- Department of Chemical and Geological Science and INSTM, University of Cagliari, Monserrato (CA), I-09042, Italy
| | - P Marzola
- Department of Computer Science and INSTM, University of Verona, Verona, I-37134, Italy
| | - A Lascialfari
- Department of Physics and INSTM, Università degli Studi di Milano, Milano, I-20133, Italy
| | - A Sbarbati
- Department of Neurological and Movement Science and INSTM, University of Verona, Verona, I-37134, Italy
| |
Collapse
|
26
|
Parodi C, García G, Monzani MC, Culasso A, Aloisi N, Corti M, Campos R, de E de Bracco MM, Baré P. Hepatitis C virus long-term persistence in peripheral blood mononuclear cells in patients with haemophilia. Detection of occult genotype 1. J Viral Hepat 2015; 22:607-16. [PMID: 25431170 DOI: 10.1111/jvh.12363] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/08/2014] [Indexed: 01/28/2023]
Abstract
Peripheral blood mononuclear cells (PBMC) from chronic hepatitis C virus-infected persons can harbour viral variants that are not detected in plasma samples. We explored the presence and persistence of HCV genotypes in plasma and PBMC cultures from 25 HCV-monoinfected and 25 HIV/HCV-coinfected patients with haemophilia. Cell cultures were performed at different time points between 1993 and 2010-2011, and the HCV genome was examined in culture supernatants. Sequential plasma samples were studied during the same time period. Analysing sequential plasma samples, 21% of patients had mixed-genotype infections, while 50% had mixed infections determined from PBMC culture supernatants. HIV coinfection was significantly associated with the presence of mixed infections (OR = 4.57, P = 0.02; 95% CI = 1.38-15.1). In our previous study, genotype 1 was found in 72% of 288 patients of this cohort. Similar results were obtained with the sequential plasma samples included in this study, 69% had genotype 1. However, when taking into account plasma samples and the results from PBMC supernatants, genotype 1 was identified in 94% of the population. The PBMC-associated variants persisted for 10 years in some subjects, emphasizing their role as long-term reservoirs. The presence of genotype 1 in PBMC may be associated with therapeutic failure and should not be disregarded when treating haemophilic patients who have been infected by contaminated factor concentrates. The clinical implications of persistent lymphotropic HCV variants deserve further examination among multiple exposed groups of HCV-infected patients.
Collapse
Affiliation(s)
- C Parodi
- Virology Laboratory, Instituto de Investigaciones Hematológicas, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - G García
- Cátedra de Virología. Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M C Monzani
- Virology Laboratory, Instituto de Investigaciones Hematológicas, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - A Culasso
- Cátedra de Virología. Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - N Aloisi
- Virology Laboratory, Instituto de Investigaciones Hematológicas, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - M Corti
- Fundación Argentina de la Hemofilia, Buenos Aires, Argentina
| | - R Campos
- Cátedra de Virología. Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M M de E de Bracco
- Virology Laboratory, Instituto de Investigaciones Hematológicas, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - P Baré
- Virology Laboratory, Instituto de Investigaciones Hematológicas, Instituto de Medicina Experimental, CONICET, Academia Nacional de Medicina, Buenos Aires, Argentina
| |
Collapse
|
27
|
Locatelli F, Di Filippo S, Pontoriero G, Bacchini G, Fabrizi F, La Milia V, Corti M. The effect of electrolyte balances on cardiovascular stability during hemodialysis. Contrib Nephrol 2015; 106:125-8. [PMID: 8174356 DOI: 10.1159/000422937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- F Locatelli
- Division of Nephrology and Dialysis, Hospital of Lecco, Italy
| | | | | | | | | | | | | |
Collapse
|
28
|
Monova D, Monov S, Todorov T, Soderberg D, Kurz T, Weiner M, Eriksson P, Segelmark M, Jakuszko K, Sebastian A, Bednarz Z, Krajewska M, Wiland P, Madziarska K, Weyde W, Klinger M, Naidoo J, Wearne N, Jones E, Swanepoel C, Rayner B, Okpechi I, Endo N, Tsuboi N, Furuhashi K, Matsuo S, Maruyama S, Clerte M, Levi C, Touzot M, Fakhouri F, Monge C, Lebas C, Abboud I, Huart A, Durieux P, Charlin E, Thervet E, Karras A, Smykal-Jankowiak K, Niemir ZI, Polcyn-Adamczak M, Whatmough S, Sweeney N, Fernandez S, Hussain M, Dhaygude A, Jakuszko K, Bednarz Z, Sebastian A, Krajewska M, Gniewek K, Wiland P, Weyde W, Klinger M, Manenti L, Urban ML, Vaglio A, Gintoli E, Galletti M, Buzio C, Monova D, Monov S, Argirova T, Wong I, Ibrahim FH, Goh BL, Lim TS, Chan MW, Hiramtasu R, Ubara Y, Hoshino J, Takaichi K, Ghafoor V, Hussain M, Dhaygude A, Whatmough S, Fernandez S, Sweeney N, Hussain M, Dhaygude A, Sahay M, Soma J, Nakaya I, Sasaki N, Yoshikawa K, Sato H, Kaminskyy V, ZAbi Ska M, Krajewska M, Ko Cielska-Kasprzak K, Jakuszko K, Klinger M, Niemir Z, Wozniczka K, Swierzko A, Cedzynski M, Polcyn-Adamczak M, Sokolowska A, Szala A, Arjunan A, Mikhail A, Shrivastava R, Parker C, Aithal S, Gursu M, Ozari M, Yucetas E, Sumnu A, Doner B, Cebeci E, Ozkan O, Aktuglu MB, Karaali Z, Koldas M, Ozturk S, Marco H, Picazo M, Da Silva I, Gonzalez A, Arce Y, Gracia S, Corica M, Llobet J, Diaz M, Ballarin J, Schonermarck U, Hagele H, Baumgartner A, Fischereder M, Muller S, Oliveira CBL, Oliveira ASA, Carvalho CJB, Pessoa CTBC, Sette LHBC, Fernandes GV, Cavalcante MAGM, Valente LM, Wan Q, Hu H, He Y, Li T, Aazair N, Houmaid Z, Rhair A, Bennani N, Demin A, Petrova O, Kotova O, Demina L, Roccatello D, Sciascia S, Rossi D, Naretto C, Baldovino S, Alpa M, Salussola I, Modena V, Zakharova EV, Vinogradova OV, Stolyarevich ES, Yap DYH, Chan TM, Thanaraj V, Dhaygude A, Ponnusamy A, Pillai S, Argentiero L, Schena A, Rossini M, Manno C, Castellano G, Martino M, Mitrotti A, Giliberti M, Digiorgio C, Di Palma AM, Battaglia M, Ditonno P, Grandaliano G, Gesualdo L, Oliveira CBL, Carvalho CJB, Oliveira ASA, Pessoa CTBC, Sette LHBC, Fernandes GV, Cavalcante MAGM, Valente LM, Neprintseva N, Tchebotareva N, Bobkova I, Kozlovskaya L, Rabrenovi V, Kova Evi Z, Jovanovi D, Rabrenovi M, Anti S, Ignjatovi L, Petrovi M, Longhi S, Del Vecchio L, Vigano S, Casartelli D, Bigi MC, Corti M, Limardo M, Tentori F, Pontoriero G, Zeraati AA, Shariati Sarabi Z, Davoudabadi Farahani A, Mirfeizi Z, Bae E. PRIMARY AND SECONDARY GLOMERULONEPHRITIDES 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu170] [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: 11/13/2022] Open
|
29
|
Culasso ACA, Baré P, Aloisi N, Monzani MC, Corti M, Campos RH. Intra-host evolution of multiple genotypes of hepatitis C virus in a chronically infected patient with HIV along a 13-year follow-up period. Virology 2013; 449:317-27. [PMID: 24418566 DOI: 10.1016/j.virol.2013.11.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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: 07/02/2013] [Revised: 08/15/2013] [Accepted: 11/21/2013] [Indexed: 01/12/2023]
Abstract
The intra-host evolutionary process of hepatitis C virus (HCV) was analyzed by phylogenetic and coalescent methodologies in a patient co-infected with HCV-1a, HCV-2a, HCV-3a and human immunodeficiency virus (HIV) along a 13-year period. Direct sequence analysis of the E2 and NS5A regions showed diverse evolutionary dynamics, in agreement with different relationships between these regions and the host factors. The Bayesian Skyline Plot analyses of the E2 sequences (cloned) yielded different intra-host evolutionary patterns for each genotype: a steady state of a "consensus" sequence for HCV-1a; a pattern of lineage splitting and extinction for HCV-2a; and a two-phase (drift/diversification) process for HCV-3a. Each genotype evolving in the same patient and at the same time presents a different pattern apparently modulated by the immune pressure of the host. This study provides useful information for the management of co-infected patients and provides insights into the mechanisms behind the intra-host evolution of HCV.
Collapse
Affiliation(s)
- A C A Culasso
- Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
| | - P Baré
- Sección Virología, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - N Aloisi
- Sección Virología, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - M C Monzani
- Sección Virología, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - M Corti
- Departamento de Medicina Interna, Orientación Enfermedades Infecciosas, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina; División VIH/sida, Hospital de Infecciosas F.J. Muñiz, Ciudad Autónoma de Buenos Aires, Argentina; Jefe de Infectología, Fundación Argentina de la Hemofilia, Buenos Aires, Argentina
| | - R H Campos
- Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina.
| |
Collapse
|
30
|
Corti M, Baligand C, Falk L, Walter G, Byrne B. P.17.4 Magnetic Resonance Imaging (MRI) to evaluate the effect of enzyme replacement therapy in Late Onset Pompe Disease (LOPD). Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.654] [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: 11/29/2022]
|
31
|
Corti M, Villafañe M, Trione N, Yampolsky C, Sevlever G. Progressive multifocal leukoencephalopathy presenting as IRIS in an AIDS patient. A case report and literature review. Neuroradiol J 2013; 26:151-4. [PMID: 23859236 DOI: 10.1177/197140091302600203] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 03/21/2013] [Indexed: 11/16/2022] Open
Abstract
Progressive multifocal leukoencephalopathy causes an infection of the central nervous system by JC virus (JCV), a polyomavirus that destroys oligodendrocytes and their myelin processes. Here, we describe a patient with AIDS who developed a progressive multifocal leucoencephalopathy with the clinical and neuroimaging characteristics of the immune inflammatory reconstitution syndrome. Unlike other opportunistic infections, this disease can present when CD4 T cell counts are higher than those associated with AIDS and also when patients are receiving combined antiretroviral therapy. Clinical suspicion of this form of the disease is based on clinical examination that shows focal neurological deficits associated with magnetic resonance images findings. The histopathological examination of brain biopsy smears and the identification of JCV in cerebrospinal fluid or brain tissue are definitive for the diagnosis.
Collapse
Affiliation(s)
- M Corti
- Infectious Diseases Department, F.J. Muñiz Hospital, Buenos Aires, Argentina.
| | | | | | | | | |
Collapse
|
32
|
Bordonali L, Kalaivani T, Sabareesh KPV, Innocenti C, Fantechi E, Sangregorio C, Casula MF, Lartigue L, Larionova J, Guari Y, Corti M, Arosio P, Lascialfari A. NMR-D study of the local spin dynamics and magnetic anisotropy in different nearly monodispersed ferrite nanoparticles. J Phys Condens Matter 2013; 25:066008. [PMID: 23315450 DOI: 10.1088/0953-8984/25/6/066008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present a systematic experimental comparison of the superparamagnetic relaxation time constants obtained by means of dynamic magnetic measurements and (1)H-NMR relaxometry, on ferrite-based nanosystems with different composition, various core sizes and dispersed in different solvents. The application of a heuristic model for the relaxivity allowed a comparison between the reversal time of magnetization as seen by NMR and the results from the AC susceptibility experiments, and an estimation of fundamental microscopic properties. A good agreement between the NMR and AC results was found when fitting the AC data to a Vogel-Fulcher law. Key parameters obtained from the model have been exploited to evaluate the impact of the contribution from magnetic anisotropy to the relaxivity curves and estimate the minimum approach distance of the bulk solvent.
Collapse
Affiliation(s)
- L Bordonali
- Department of Physics E Amaldi, Università Uniroma TRE, Roma, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Affiliation(s)
- M Corti
- Dipartimento di Biologia Animale e dell'Uomo, University di Roma 'La Sapienza', Via Borelli 50, 00161 Roma, Italy
| |
Collapse
|
34
|
Corti M, Villafañe MF, Palmieri O, Gilardi L. [Mycobacterium tuberculosis as etiological agent of adult infectious spondylodiscitis]. Rev Clin Esp 2012; 212:369-71. [PMID: 22613195 DOI: 10.1016/j.rce.2012.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Accepted: 03/24/2012] [Indexed: 11/15/2022]
|
35
|
Corti M, Villafañe MF, Bistmans A, Campitelli A, Narbaitz M, Baré P. Oral cavity and extra-oral plasmablastic lymphomas in AIDS patients: report of five cases and review of the literature. Int J STD AIDS 2011; 22:759-63. [DOI: 10.1258/ijsa.2011.011235] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Plasmablastic lymphoma (PBL) is a distinct disease entity of the diffuse large B-cell lymphoma, which often occurs in HIV-positive patients. The immunophenotype of this lymphoid neoplasm is characterized by the presence of plasma cell-associated markers VS38c and CD138 antigens and the absence of B-cell markers such as CD20 and CD45. The most frequent site of involvement is the oral cavity and the jaw, while several reports describe the development of PBL in extra-oral sites including the lymph nodes, the anal canal, the soft tissue, the skin and the gastrointestinal tract as less frequent. Epstein−Barr virus is often associated with PBL pathogenesis and the neoplastic cells contain this virus genome. Here we review the epidemiological, clinical, immunological, histopathological and virological characteristics and their prognosis and outcome in a series of five patients with diagnoses of HIV/AIDS and PBL.
Collapse
Affiliation(s)
| | | | | | - A Campitelli
- Histopathological Laboratory Infectious Diseases FJ Muñiz Hospital
| | - M Narbaitz
- Histopathological Laboratory National Academy of Medicine
| | - P Baré
- Virology Laboratory, National Academy of Medicine, Buenos Aires, Argentina
| |
Collapse
|
36
|
Martinez MF, de Nava G, Demmers KJ, Tutt D, Rodriguez Sabarrós M, Smaill B, Corti M, Juengel J. Intravaginal progesterone devices in synchronization protocols for artificial insemination in beef heifers. Reprod Domest Anim 2011; 47:230-7. [PMID: 21883507 DOI: 10.1111/j.1439-0531.2011.01833.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Two experiments were designed to investigate the administration of intravaginal progesterone in protocols for oestrus and ovulation synchronization in beef heifers. In Experiment 1, cyclic Black Angus heifers (n = 20) received an Ovsynch protocol and were randomly assigned to receive (CIDR-Ovsynch) or not (Ovsynch) a progesterone device between Days 0 and 7. Treatment with a controlled internal drug release (CIDR) device significantly increased the size of the dominant follicle prior to ovulation (12.8 ± 0.4 CIDR-Ovsynch vs 11.4 ± 0.4 Ovsynch) (p < 0.02). Plasma progesterone concentrations throughout the experiment were affected by the interaction between group and day effects (p < 0.004). In Experiment 2, cyclic Polled Hereford heifers (n = 382) were randomly assigned to one of the six treatment groups (3 × 2 factorial design) to receive a CIDR, a used bovine intravaginal device (DIB), or a medroxiprogesterone acetate (MAP) sponge and GnRH analogues (lecirelin or buserelin). All heifers received oestradiol benzoate plus one of the devices on Day 0 and PGF on Day 7 pm (device withdrawal). Heifers were detected in oestrus 36 h after PGF and inseminated 8-12 h later, while the remainder received GnRH 48 h after PGF and were inseminated on Day 10 (60 h). The number of heifers detected in oestrus on Day 8 and conception rate to AI on Day 9 were higher (p < 0.01) in the used-DIB than in the CIDR or MAP groups, while the opposite occurred with the pregnancy rate to FTAI on Day 10 (p < 0.01). There was no effect of progesterone source, GnRH analogue or their interaction on overall pregnancy rates (64.9%). Progesterone treatment of heifers during an Ovsynch protocol resulted in a larger pre-ovulatory follicle in beef heifers. Progesterone content of intravaginal devices in synchronization protocols is important for the timing of AI, as the use of low-progesterone devices can shorten the interval to oestrus.
Collapse
Affiliation(s)
- M F Martinez
- AgResearch Limited, Invermay Agricultural Centre, Mosgiel, New Zealand.
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Bonora M, Corti M, Borsa F, Bortolussi S, Protti N, Santoro D, Stella S, Altieri S, Zonta C, Clerici AM, Cansolino L, Ferrari C, Dionigi P, Porta A, Zanoni G, Vidari G. 1H and 10B NMR and MRI investigation of boron- and gadolinium-boron compounds in boron neutron capture therapy. Appl Radiat Isot 2011; 69:1702-5. [PMID: 21371896 DOI: 10.1016/j.apradiso.2011.02.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 02/07/2011] [Accepted: 02/10/2011] [Indexed: 10/18/2022]
Abstract
(10)B molecular compounds suitable for Boron Neutron Capture Therapy (BNCT) are tagged with a Gd(III) paramagnetic ion. The newly synthesized molecule, Gd-BPA, is investigated as contrast agent in Magnetic Resonance Imaging (MRI) with the final aim of mapping the boron distribution in tissues. Preliminary Nuclear Magnetic Resonance (NMR) measurements, which include (1)H and (10)B relaxometry in animal tissues, proton relaxivity of the paramagnetic Gd-BPA molecule in water and its absorption in tumoral living cells, are reported.
Collapse
Affiliation(s)
- M Bonora
- Physics Department A. Volta, University of Pavia, Pavia, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Corti M, Trione N, Risso D, Soto I, Villafañe MF, Yampolsky C, Negroni R. Disseminated paracoccidioidomycosis with a single brainstem lesion. A case report and literature review. Neuroradiol J 2010; 23:454-8. [PMID: 24148639 DOI: 10.1177/197140091002300416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Accepted: 06/28/2010] [Indexed: 11/16/2022] Open
Abstract
Paracoccidioidomycosis is a systemic disease endemic to subtropical areas in Central and South America caused by a dimorphic fungus known as Paracoccidioides brasiliensis. Central nervous system involvement is a severe complication of the systemic disease, and has been found in approximately 13% of patients. This paper describes the case of a patient whose computed tomography scan and magnetic resonance imaging showed a single tumor-like lesion in the brainstem. Histopathological and mycological examinations of stereotactic biopsy smears showed the characteristic yeast cells that confirmed the diagnosis of neuroparacoccidioidomycosis.
Collapse
Affiliation(s)
- M Corti
- Division of HIV/AIDS, "F. J. Muñiz" Infectious Diseases Hospital; Buenos Aires, Argentina -
| | | | | | | | | | | | | |
Collapse
|
39
|
Piasentier E, Volpelli L, Sepulcri A, Maggioni L, Corti M. Effect of milk feeding system on carcass and meat quality of Frisa Valtellinese kids. Ital J Animal Sci 2010. [DOI: 10.4081/ijas.2005.2s.398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
40
|
Capanna E, Corti M, Nascetti G. Role of contact areas in chromosomal speciation of the European long-tailed house mouse (Mus musculus domesticus). ACTA ACUST UNITED AC 2009. [DOI: 10.1080/11250008509440345] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
41
|
|
42
|
Corti M, Ciabatti CM. The structure of a chromosomal hybrid zone of house mice (Mus domesticus) in central Italy: cytogenetic analysis. J ZOOL SYST EVOL RES 2009. [DOI: 10.1111/j.1439-0469.1990.tb00382.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
43
|
Corti M, Aguilera M. Allometry and chromosomal speciation of the casiraguas Proechimys (Mammalia, Rodentia). J ZOOL SYST EVOL RES 2009. [DOI: 10.1111/j.1439-0469.1995.tb00964.x] [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: 11/27/2022]
|
44
|
|
45
|
Del Favero E, Raudino A, Brocca P, Motta S, Fragneto G, Corti M, Cantú L. Lamellar stacking split by in-membrane clustering of bulky glycolipids. Langmuir 2009; 25:4190-4197. [PMID: 19714899 DOI: 10.1021/la802858m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We developed a simple model to investigate the effect of lipid clustering on the local interlayer distance in a cluster of interacting lamellae. The model, based on nonequilibrium thermodynamics and linear stability theories, explores the early stages of the lamella-lamella phase separation process where the lateral diffusion is much faster than the interlamellar lipid exchange. Results indicate, in the early stages, the presence of locally distorted regions with a higher concentration of one lipid component and an anomalous repeat distance. Experimental cases are presented, consisting of multilamellar-oriented depositions of phospholipids containing minority amounts of ganglioside or sphingomyelin under a low-hydration condition. The minority components are known to form domains within the phospholipid bilayer matrix. The low water content inhibits the lipid exchange among nearby lamellae and strengthens lamella-lamella interaction, allowing for a straightforward comparison with the model. Small-angle and wide-angle neutron diffraction experiments were performed in order to detect interlayer distances and local chain order, respectively. Lamellar stacking splitting has been observed for the ganglioside-containing lamellae, induced by in-phase lipid clustering. In excess water and after long equilibration times, these local structures may further evolve, leading to coexisting lamellar phases with different lipid compositions and interlayer distances.
Collapse
Affiliation(s)
- E Del Favero
- Department of Medical Chemistry, Biochemistry and Biotechnologies, University of Milan, LI.T.A., Via F. lli Cervi 93, 20090 Segrate, Italy
| | | | | | | | | | | | | |
Collapse
|
46
|
Cecchini D, Ambrosioni J, Brezzo C, Corti M, Rybko A, Perez M, Poggi S, Ambroggi M. Tuberculous meningitis in HIV-infected and non-infected patients: comparison of cerebrospinal fluid findings. Int J Tuberc Lung Dis 2009; 13:269-271. [PMID: 19146759] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
We performed a retrospective comparison of cerebrospinal fluid (CSF) characteristics and drug susceptibility profile in human immunodeficiency virus (HIV) infected and non-infected patients with a diagnosis of tuberculous meningitis. HIV-infected patients had a higher frequency of non-inflammatory CSF (absence of pleocytosis) and of infection by multidrug-resistant strains of Mycobacterium tuberculosis. Protein CSF levels were lower in HIV-infected patients, while and glucose concentration was similar in both groups. Hospital mortality was significantly higher in HIV-infected patients (63.3% [64/101] vs. 17.5% [7/40]).
Collapse
Affiliation(s)
- D Cecchini
- Hospital Francisco J Muñiz, Buenos Aires, Argentina.
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Corti M, Fadda C. Systematics ofArvicanthis(Rodentia, Muridae) from the Horn of Africa: A geometric morphometrics evaluation. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/11250009609356128] [Citation(s) in RCA: 12] [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: 10/21/2022]
|
48
|
Corti M, Scanzani A, Rossi AR, Civitelli MV, Bekele A, Capanna E. Karyotypic and genetic divergence in the EthiopianMyomys ‐ Stenocephalemyscomplex (Mammalia, Rodentia). ACTA ACUST UNITED AC 2009. [DOI: 10.1080/11250009909356275] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
49
|
Affiliation(s)
- Marco Corti
- a Dipartimento di Biologia Animale e dell'Uomo , Università di Roma , ≪La Sapienza≫ Via A. Borelli 50, Roma, 00161, Italy
| | - Anna Loy
- a Dipartimento di Biologia Animale e dell'Uomo , Università di Roma , ≪La Sapienza≫ Via A. Borelli 50, Roma, 00161, Italy
| |
Collapse
|
50
|
Corti M, Trione N, Muzzio E, Yampolsky C, Lewi D, Schtirbu R, Sevlever G. Gliosarcoma: an unusual cause of cerebral mass lesion in a patient with AIDS. A case report and review of the literature. Neuroradiol J 2009; 21:835-8. [PMID: 24257054 DOI: 10.1177/197140090802100614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Accepted: 10/05/2008] [Indexed: 11/16/2022] Open
Abstract
Malignant glioma is the most common primary brain neoplasm. Generally, gliomas are not included in the differential diagnosis of enhancing lesions of the central nervous system in patients infected by the human immunodeficiency virus. We report a case of gliosarcoma in a patient with AIDS presenting as a single cerebral lesion. Stereotactic brain biopsy was obtained and definitive histopathological diagnosis of gliosarcoma was made. A decline in the incidence of opportunistic infections associated with highly active antiretroviral therapy suggest the importance of early stereotactic biopsy to confirm the diagnosis of these neoplasms.
Collapse
Affiliation(s)
- M Corti
- Division of HIV/AIDS Disease, F. J. Muñiz Infectious Diseases Hospital; Buenos Aires, Argentina -
| | | | | | | | | | | | | |
Collapse
|