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Piazza S, Martinelli G, Fumagalli M, Pozzoli C, Maranta N, Giavarini F, Colombo L, Nicotra G, Vicentini SF, Genova F, De Fabiani E, Sangiovanni E, Dell'Agli M. Ellagitannins from Castanea sativa Mill. Leaf Extracts Impair H. pylori Viability and Infection-Induced Inflammation in Human Gastric Epithelial Cells. Nutrients 2023; 15:nu15061504. [PMID: 36986236 PMCID: PMC10056456 DOI: 10.3390/nu15061504] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 03/08/2023] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 03/30/2023] Open
Abstract
Helicobacter pylori (H. pylori) is an etiologic factor of peptic ulcer disease and gastric cancer. Virulent strains of H. pylori are correlated with the severity of gastritis, due to NF-κB activation and IL-8 expression at the epithelial level. Ellagitannins have been documented for antibacterial and anti-inflammatory activities, thus suggesting their potential use in gastritis. Recently, several authors, including our group, demonstrated that tannin-rich extracts from chestnut byproducts, at present considered agricultural waste, display promising biological activities. In this work, we detected high levels of polyphenols in hydroalcoholic extracts from chestnut leaves (Castanea sativa L.). Among polyphenols, the ellagitannin isomers castalagin and vescalagin (about 1% w/w of dry extract) were identified as potential bioactive compounds. In GES-1 cells infected by H. pylori, leaf extract and pure ellagitannins inhibited IL-8 release (IC50 ≈ 28 µg/mL and 11 µM, respectively). Mechanistically, the anti-inflammatory activity was partly due to attenuation of NF-κB signaling. Moreover, the extract and pure ellagitannins reduced bacterial growth and cell adhesion. A simulation of the gastric digestion suggested that the bioactivity might be maintained after oral administration. At the transcriptional level, castalagin downregulated genes involved in inflammatory pathways (NF-κB and AP-1) and cell migration (Rho GTPase). To the best of our knowledge, this is the first investigation in which ellagitannins from plant extracts have demonstrated a potential role in the interaction among H. pylori and human gastric epithelium.
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Affiliation(s)
- Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Giulia Martinelli
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Marco Fumagalli
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Carola Pozzoli
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Nicole Maranta
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Flavio Giavarini
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Luca Colombo
- Consorzio Castanicoltori di Brinzio, Orino e Castello Cabiaglio, Società Cooperativa Agricola-Varese, 21100 Varese, Italy
| | | | | | - Francesca Genova
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Emma De Fabiani
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Enrico Sangiovanni
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
| | - Mario Dell'Agli
- Department of Pharmacological and Biomolecular Sciences "Rodolfo Paoletti", University of Milan, 20133 Milan, Italy
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Baragetti A, Severgnini M, Olmastroni E, Dioguardi CC, Mattavelli E, Angius A, Rotta L, Cibella J, Consolandi C, Grigore L, Pellegatta F, Giavarini F, Caruso D, Norata D, Catapano A, Peano C. Individual diet relates to gut microbiota functional dysbiosis since subclinical stages of atherosclerosis. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Magnavacca A, Piazza S, Cammisa A, Fumagalli M, Martinelli G, Giavarini F, Sangiovanni E, Dell’Agli M. Ribes nigrum Leaf Extract Preferentially Inhibits IFN-γ-Mediated Inflammation in HaCaT Keratinocytes. Molecules 2021; 26:molecules26103044. [PMID: 34065200 PMCID: PMC8160861 DOI: 10.3390/molecules26103044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022] Open
Abstract
Ribes nigrum L. (blackcurrant) leaf extracts, due to high levels of flavonols and anthocyanins, have been shown to exhibit beneficial effects in inflammatory diseases. However, whereas their traditional use has been investigated and validated in several models of inflammation and oxidative stress, the possible impact on skin disorders is still largely unknown. The purpose of this work was to elucidate the effects of R. nigrum leaf extract (RNLE) on keratinocyte-derived inflammatory mediators, elicited by a Th1 or Th2 cytokine milieu. HaCaT cells were challenged with TNF-α, either alone or in combination with the costimulatory cytokines IFN-γ or IL-4, and the release of proinflammatory cytokines and mediators (IL-8, IL-6, s-ICAM-1, and TSLP) was evaluated. The results showed that RNLE preferentially interferes with IFN-γ signaling, demonstrating only negligible activity on TNF-α or IL-4. This effect was attributed to flavonols, which might also account for the ability of RNLE to impair TNF-α/IL-4-induced TSLP release in a cAMP-independent manner. These results suggest that RNLE could have an antiallergic effect mediated in keratinocytes via mechanisms beyond histamine involvement. In conclusion, the discovery of RNLE preferential activity against IFN-γ-mediated inflammation suggests potential selectivity against Th1 type response and the possible use in Th1 inflammatory diseases.
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Affiliation(s)
- Andrea Magnavacca
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
| | - Stefano Piazza
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
| | - Anna Cammisa
- Specialist in Dermatology and Venereology, Corso di Porta Romana 131, 20122 Milan, Italy;
| | - Marco Fumagalli
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
| | - Giulia Martinelli
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
| | - Flavio Giavarini
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
| | - Enrico Sangiovanni
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
- Correspondence:
| | - Mario Dell’Agli
- Department of Pharmacological and Molecular Sciences, University of Milan, 20133 Milan, Italy; (A.M.); (S.P.); (M.F.); (G.M.); (F.G.); (M.D.)
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Audano M, Pedretti S, Ligorio S, Giavarini F, Caruso D, Mitro N. Investigating metabolism by mass spectrometry: From steady state to dynamic view. J Mass Spectrom 2021; 56:e4658. [PMID: 33084147 DOI: 10.1002/jms.4658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/10/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Metabolism is the set of life-sustaining reactions in organisms. These biochemical reactions are organized in metabolic pathways, in which one metabolite is converted through a series of steps catalyzed by enzymes in another chemical compound. Metabolic reactions are categorized as catabolic, the breaking down of metabolites to produce energy, and/or anabolic, the synthesis of compounds that consume energy. The balance between catabolism of the preferential fuel substrate and anabolism defines the overall metabolism of a cell or tissue. Metabolomics is a powerful tool to gain new insights contributing to the identification of complex molecular mechanisms in the field of biomedical research, both basic and translational. The enormous potential of this kind of analyses consists of two key aspects: (i) the possibility of performing so-called targeted and untargeted experiments through which it is feasible to verify or formulate a hypothesis, respectively, and (ii) the opportunity to run either steady-state analyses to have snapshots of the metabolome at a given time under different experimental conditions or dynamic analyses through the use of labeled tracers. In this review, we will highlight the most important practical (e.g., different sample extraction approaches) and conceptual steps to consider for metabolomic analysis, describing also the main application contexts in which it is used. In addition, we will provide some insights into the most innovative approaches and progress in the field of data analysis and processing, highlighting how this part is essential for the proper extrapolation and interpretation of data.
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Affiliation(s)
- Matteo Audano
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Silvia Pedretti
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Simona Ligorio
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Flavio Giavarini
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Donatella Caruso
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
| | - Nico Mitro
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, 20133, Italy
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Sbrini G, Brivio P, Fumagalli M, Giavarini F, Caruso D, Racagni G, Dell’Agli M, Sangiovanni E, Calabrese F. Centella asiatica L. Phytosome Improves Cognitive Performance by Promoting Bdnf Expression in Rat Prefrontal Cortex. Nutrients 2020; 12:nu12020355. [PMID: 32013132 PMCID: PMC7071263 DOI: 10.3390/nu12020355] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 12/31/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 01/15/2023] Open
Abstract
A wide range of people in the world use natural remedies as primary approaches against illnesses. Accordingly, understanding the mechanisms of action of phytochemicals has become of great interest. In this context, Centella asiatica L. is extensively used, not only as anti-inflammatory or antioxidant agent but also as brain tonic. On this basis, the purpose of this study was to evaluate whether the chronic administration of C. asiatica L. to adult male rats was able to improve the expression of Bdnf, one of the main mediators of brain plasticity. Moreover, we assessed whether the treatment could affect the cognitive performance in the novel object recognition (NOR) test. We confirmed the presence of the main compounds in the plasma. Furthermore, C. asiatica L. administration induced an increase of Bdnf in the prefrontal cortex, and the administration of the higher dose of the extract was able to improve cognitive performance. Finally, the increase in the preference index in the NOR test was paralleled by a further increase in Bdnf expression. Overall, we highlight the ability of C. asiatica L. to affect brain functions by increasing Bdnf expression and by enhancing the cognitive performance.
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Corbett Y, D'Alessandro S, Parapini S, Scaccabarozzi D, Kalantari P, Zava S, Giavarini F, Caruso D, Colombo I, Egan TJ, Basilico N. Interplay between Plasmodium falciparum haemozoin and L-arginine: implication for nitric oxide production. Malar J 2018; 17:456. [PMID: 30522493 PMCID: PMC6282336 DOI: 10.1186/s12936-018-2602-0] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 11/29/2018] [Indexed: 01/07/2023] Open
Abstract
Background Plasmodium falciparum haemozoin, a detoxification product of digested haemoglobin from infected erythrocytes, is released into the bloodstream upon schizont rupture and accumulates in leukocytes. High levels of haemozoin correlate with disease severity. Some studies have shown that concentrations of the substrate of inducible nitric oxide synthase (iNOS), l-arginine, as well as nitric oxide are low in patients infected with P. falciparum malaria. The present study investigates, in vitro, the role of P. falciparum haemozoin on nitric oxide production, iNOS expression in macrophages, and the possible interaction between l-arginine and haemozoin. Methods Plasmodium falciparum haemozoin was obtained from in vitro cultures through magnetic isolation. Phagocytosis of haemozoin by immortalized bone marrow derived macrophages was detected by confocal reflection combined with fluorescence microscopy. Nitrite concentrations in the supernatants was evaluated by Griess assay as a standard indication of nitric oxide production, while iNOS expression was detected on cell extracts by western blotting. Detection of l-arginine in haemozoin-treated or untreated media was achieved by liquid chromatography–tandem mass spectrometry (LC–MS/MS). Results Haemozoin synergizes in vitro with interferon-gamma to produce nitric oxide. However, when mouse macrophages were stimulated with haemozoin, a proportional increase of nitric oxide was observed up to 25 μM of haemozoin, followed by a decrease with doses up to 100 μM, when nitric oxide release was completely abrogated. This was not due to reactive oxygen species production, nor to an effect on iNOS activity. Interestingly, when at 24 h, haemozoin-treated macrophages were washed and incubated in fresh medium for further 24 h, the nitric oxide production was restored in a dose–response manner. Similar results were seen when l-arginine-enriched media was used in the stimulation. Moreover, muramyldipeptide, a strong nitric oxide inducer, was unable to activate macrophages to release nitric oxide in the presence of haemozoin-treated medium. By LC–MS/MS a complete depletion of l-arginine was observed in this haemozoin-treated, conditioned medium. Conclusions It is proposed that haemozoin interacts with l-arginine reducing its availability for iNOS, and thus decreasing nitric oxide production. The clinical (or pathological) implications of these results are discussed. Electronic supplementary material The online version of this article (10.1186/s12936-018-2602-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yolanda Corbett
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy. .,Dipartimento di Bioscienze, Università degli Studi di Milano, 20133, Milan, MI, Italy.
| | - Sarah D'Alessandro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy.,Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Silvia Parapini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy.,Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Diletta Scaccabarozzi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Parisa Kalantari
- Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA
| | - Stefania Zava
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Flavio Giavarini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Donatella Caruso
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Irma Colombo
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133, Milan, MI, Italy
| | - Timothy J Egan
- Department of Chemistry, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
| | - Nicoletta Basilico
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università degli Studi di Milano, 20133, Milan, MI, Italy
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Piazza S, Sangiovanni E, Maldini M, Fumagalli M, Spezzano R, Giavarini F, Pacchetti B, Caruso D, Dell'Agli M. STABILITY AND INTESTINAL ABSORPTION OF VINPOCETINE IN HUMAN EPITHELIAL CACO-2 CELLS. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608573] [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: 10/18/2022]
Affiliation(s)
- S Piazza
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - E Sangiovanni
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - M Maldini
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - M Fumagalli
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - R Spezzano
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - F Giavarini
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | | | - D Caruso
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
| | - M Dell'Agli
- Department of Pharmacological and Biomolecular Sciences University of Milan, Milan, Italy
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Lucci P, Pacetti D, Calzuola I, Marsili V, Perni S, Giavarini F, Frega NG, Gianfranceschi GL. Characterization of phospholipid molecular species and peptide molecules in wheat sprout hydroalcoholic extract. J Agric Food Chem 2013; 61:11453-11459. [PMID: 24156493 DOI: 10.1021/jf4034392] [Citation(s) in RCA: 3] [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: 06/02/2023]
Abstract
The phospholipid molecular species and the main peptide molecules of wheat sprout hydroalcoholic extract have been fully characterized by normal-phase high performance liquid chromatography coupled online with positive electrospray ionization tandem mass spectrometry. The extract that resulted was rich in phospholipid molecular species formed by the combination of the two essential fatty acids (α-linoleic and α-linolenic). These species accounted for 51.7% of total phosphatidic acid, 47.3% of total phosphatidylethanolamine, 37.7% of total phosphatidylcholine, and 14.1% of total phosphatidylinositol. The last one showed the highest amounts of species containing palmitic acid, thus representing the most saturated phospholipid class. The extract was also shown to contain several peptide sequences with both potential antioxidant domains and interaction sites for phospholipids (i.e., H-Ala-Gly-Ser-Met-Met-Cys-NH2, H-Tyr-Met-Thr-Val-Val-Ala-Cys-NH2, etc.); this latter finding can have a highly positive impact on the poor peptides bioavailability. Because of the presence of essential fatty acids-rich phospholipids and bioactive peptides, wheat sprout hydroalcoholic extract can be considered a potential functional food ingredient.
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Affiliation(s)
- Paolo Lucci
- Department of Nutrition and Biochemistry, Faculty of Sciences, Pontificia Universidad Javeriana , Bogotà, Distrito Capital, Colombia
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Parolini C, Caligari S, Gilio D, Manzini S, Busnelli M, Montagnani M, Locatelli M, Diani E, Giavarini F, Caruso D, Roda E, Roda A, Sirtori CR, Chiesa G. Reduced biliary sterol output with no change in total faecal excretion in mice expressing a human apolipoprotein A-I variant. Liver Int 2012; 32:1363-71. [PMID: 22845860 DOI: 10.1111/j.1478-3231.2012.02855.x] [Citation(s) in RCA: 17] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 06/07/2012] [Accepted: 06/28/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND/AIMS Apolipoprotein (apo)A-I(M) (ilano), is a molecular variant of apoA-I(wild-type), associated with dramatically low HDL-cholesterol levels, but no increased risk for cardiovascular disease. In view of the present uncertainties on the role of apoA-I in liver cholesterol removal by way of bile acids and neutral sterols, and of the greater capacity of apoA-I(M) (ilano) to remove arterial cholesterol, biliary sterol metabolism was evaluated in transgenic mice expressing apoA-I(M) (ilano). METHODS ApoA-I(M) (ilano) mice were fed a high-cholesterol/high-fat diet, and compared with human apoA-I(wild-type) mice. Plasma lipid levels, hepatic bile flow and composition, hepatic and intestinal cholesterol and bile acid content, and faecal sterol content were measured. Moreover, the expression of hepatic ABCA1, SR-B1 and that of hepatic and intestinal genes involved in bile acid metabolism were evaluated. RESULTS The dietary treatment led to a strong elevation in HDL-cholesterol levels in A-I(M) (ilano) mice, associated with an increased expression of hepatic ABCA1. ApoA-I(M) (ilano) mice showed lower cholesterol output from the liver compared with apoA-I(wild-type) mice, in the absence of liver sterol accumulation. Faecal excretion of neutral sterols and bile acids was similar in the two mouse lines. CONCLUSIONS In spite of a different response to the dietary challenge, with an increased ABCA1 expression and a lower hepatic cholesterol output in apoA-I(M) (ilano) mice, the net sterol excretion is comparable in the two transgenic lines.
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Affiliation(s)
- Cinzia Parolini
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
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Paleari R, Caruso D, Giavarini F, Colzani C, Brunati P, Mosca A. The first case of Hb G-Honolulu [α30(B11)Glu→Gln (GAG>CAG); HBA2:c.91G>A] observed in association with Hb S [β6(A3)Glu→Val, GAG>GTG] in a healthy Italian child. Hemoglobin 2011; 36:73-9. [PMID: 21929368 DOI: 10.3109/03630269.2011.600797] [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: 11/13/2022]
Abstract
We report the first observation of Hb G-Honolulu [α30(B11)Glu→Gln (GAG>CAG); HBA2:c.91G>A] in a Caucasian family and the first case of this variant to be found in association with Hb S [β6(A3)Glu→Val, GAG>GTG]. The proband was a healthy 4-year-old Italian boy. His chromatographic hemoglobin (Hb) pattern showed an abnormal peak having the typical retention time of Hb S (25.6% ), a second abnormal peak eluted soon after (13.6%) and a third minor peak eluted at the end of the run (6.5%). Identification of Hb variants were performed by peptide mapping using liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS). Two abnormal peptides at m/z 765.1 and 922 were found, corresponding to the αT-4 and βT-1 peptides characteristic for Hb G-Honolulu and Hb S, respectively. The third minor abnormal peak presumably corresponded to the hybrid molecule (α(G-Honolulu)/β(S)). The concomitant presence of Hb G-Honolulu and Hb S does not seem to produce any relevant clinical manifestation.
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Affiliation(s)
- Renata Paleari
- Dipartimento di Scienze e Tecnologie Biomediche, Università degli Studi di Milano, Milano, Italia.
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Perni S, Calzuola I, Gianfranceschi GL, Giavarini F, Lucci P, Pacetti D, Frega NG, Marsili V. Biochemical and mass spectrometry recognition of phospholipid-peptide complexes in wheat sprouts extract. J Pept Sci 2011; 17:744-50. [DOI: 10.1002/psc.1397] [Citation(s) in RCA: 4] [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] [Received: 04/15/2011] [Revised: 06/14/2011] [Accepted: 06/23/2011] [Indexed: 11/06/2022]
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Dell'Agli M, Galli GV, Corbett Y, Taramelli D, Lucantoni L, Habluetzel A, Maschi O, Caruso D, Giavarini F, Romeo S, Bhattacharya D, Bosisio E. Antiplasmodial activity of Punica granatum L. fruit rind. J Ethnopharmacol 2009; 125:279-285. [PMID: 19577622 DOI: 10.1016/j.jep.2009.06.025] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Revised: 06/23/2009] [Accepted: 06/25/2009] [Indexed: 05/28/2023]
Abstract
AIM OF THE STUDY Sun-dried rind of the immature fruit of Punica granatum L. (Punicaceae) (Pg) is presently used as a herbal formulation (OMARIA) in Orissa, India, for the therapy and prophylaxis of malaria. The aims of this study were (i) to assess in vitro the antiplasmodial activity of the methanolic extract, of a tannin enriched fraction and of compounds/metabolites of the antimalarial plant, (ii) to estimate the curative efficacy of the Pg extracts and (iii) to explore the mechanism of action of the antiplasmodial compounds. Urolithins, the ellagitannin metabolites, were also investigated for antiplasmodial activity. MATERIALS AND METHODS Chloroquine-susceptible (D10) and -resistant (W2) strains of Pf were used for in vitro studies and the rodent malaria model Plasmodium berghei-BALB/c mice was used for in vivo assessments. Recombinant plasmepsins 2 and 4 were used to investigate the interference of Pg compounds with the metabolism of haemoglobin by malaria parasites. RESULTS The Pg methanolic extract (Pg-MeOH) inhibited parasite growth in vitro with a IC(50) of 4.5 and 2.8 microg/ml, for D10 and W2 strain, respectively. The activity was found to be associated to the fraction enriched with tannins (Pg-FET, IC(50) 2.9 and 1.5 microg/ml) in which punicalagins (29.1%), punicalins, ellagic acid (13.4%) and its glycoside could be identified. Plasmepsin 2 was inhibited by Pg-MeOH extract and by Pg-FET (IC(50) 7.3 and 3.0 microg/ml), which could partly explain the antiparasitic effect. On the contrary, urolithins were inactive. Both Pg-MeOH extract and Pg-FET did not show any in vivo efficacy in the murine model. CONCLUSIONS The in vitro studies support the use of Pg as antimalarial remedy. Possible explanations for the negative in vivo results are discussed.
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Affiliation(s)
- Mario Dell'Agli
- Department of Pharmacological Sciences, University of Camerino, Italy.
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13
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Dell'Agli M, Giavarini F, Ferraboschi P, Galli G, Bosisio E. Determination of aloesin and aloeresin A for the detection of aloe in beverages. J Agric Food Chem 2007; 55:3363-7. [PMID: 17419646 DOI: 10.1021/jf070182h] [Citation(s) in RCA: 7] [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: 05/14/2023]
Abstract
This work describes a sensitive high-performance liquid chromatography (HPLC) method for the quantification of aloesin and aloeresin A in alcoholic beverages containing aloe as a flavoring agent. The compounds were prepared from Aloe ferox juice. Sephadex LH20 and ion-exchange resin AG1X2 column chromatography were used for aloesin. Aloeresin A was obtained by Sephadex LH20 and silica gel column chromatography followed by purification on Discovery DSC-18 solid-phase extraction tubes. A 98 mg amount of aloesin (>99% purity) and 34 mg of aloeresin A (>98% purity) were recovered from 2.5 g of aloe juice. The HPLC method was validated, and intra- and interday performances were established. In-house validation was carried out by analyzing samples of beverages with and without aloe as a flavoring agent.
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Affiliation(s)
- Mario Dell'Agli
- Research Center for the Characterization and Safe Use of Natural Products, University of Milan, Milan 20129, Italy
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14
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Colombo ML, Risè P, Giavarini F, DE Angelis L, Galli C, Bolis CL. Marine macroalgae as sources of polyunsaturated fatty acids. Plant Foods Hum Nutr 2006; 61:67-72. [PMID: 16758317 DOI: 10.1007/s11130-006-0015-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Algae from cold water (Canada) and warm water (China) were analysed for the total lipid content, and for their fatty acid (FA) composition and content. The major findings are that fatty acids (FA) from Canadian algae are generally richer in polyunsaturated FA (PUFA), with a higher n-3/n-6 FA ratio, and a higher degree of total unsaturation. The C 18:4 FA (stearidonic acid, morotic acid as synonym) was detected in greater amounts in cold water samples. The high levels of total PUFA, and especially of n-3 FA in Canadian algae, suggests possible utilization for nutritional purposes.
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Affiliation(s)
- M L Colombo
- Department of Science and Drug Technology, School of Pharmacy, Via P. Giuria 9, 10125 Torino, Italy.
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15
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De Angelis L, Risé P, Giavarini F, Galli C, Bolis CL, Colombo ML. Marine macroalgae analyzed by mass spectrometry are rich sources of polyunsaturated fatty acids. J Mass Spectrom 2005; 40:1605-8. [PMID: 16320294 DOI: 10.1002/jms.962] [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: 05/05/2023]
Abstract
Algae from cold water (Canada) and warm water (China) were analyzed for their total lipid content, and for their fatty acid (FA) composition and content. The major findings are that FA from Canadian algae are generally richer in polyunsaturated FA (PUFA), with a higher n-3/n-6 FA ratio, and a higher degree of total unsaturation. The 18 C, 4 double bonds FA (18 : 4 stearidonic acid, morotic acid as synonym) was detected in greater amounts in cold water samples. The high levels of total PUFA, and especially of n-3 FA in Canadian algae, suggests their possible utilizations for nutritional purposes.
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Affiliation(s)
- L De Angelis
- Department of Pharmacological Sciences, School of Pharmacy, Milano, Italy.
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16
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Calzuola I, Giavarini F, Sassi P, De Angelis L, Gianfranceschi GL, Marsili V. Short acidic peptides isolated from wheat sprout chromatin and involved in the control of cell proliferation. Characterization by infrared spectroscopy and mass spectrometry. Peptides 2005; 26:2074-85. [PMID: 15955595 DOI: 10.1016/j.peptides.2005.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2005] [Revised: 04/06/2005] [Accepted: 04/06/2005] [Indexed: 11/24/2022]
Abstract
Low molecular weight peptides were isolated from the chromatin of wheat sprouts. Following gel filtration the peptide fraction shows a sharp inhibiting activity on the growth of HeLa cancer cells. Infrared (IR) spectroscopy and mass spectrometry have been utilized to characterize the wheat sprout peptides in an attempt to recognize the peptide sequence involved in the control of cell growth. The quantitative presence of a peptide with MH+=572 appears proportional to the cell growth inhibition activity. This compound has been subjected to extensive mass spectrometry analysis. The automatic computational analysis of the ions of second, third and fourth generations indicate a peptide sequence, AcHis-Asp-Ser-Glu-, that binds at the C-terminal a molecule of ethanolamine. Moreover, the results show that some sequences of the wheat sprout peptide family are present in the peptide fractions isolated from several other tissues, thus supporting the hypothesis of ubiquitous regulatory peptides.
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Affiliation(s)
- Isabella Calzuola
- Dipartimento di Biologia Cellulare e Molecolare, Università degli Studi di Perugia, 06123 Perugia, Italy
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17
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Bosisio E, Giavarini F, Dell'Agli M, Galli G, Galli CL. Analysis by high-performance liquid chromatography of teucrin A in beverages flavoured with an extract of Teucrium chamaedrys L. ACTA ACUST UNITED AC 2004; 21:407-14. [PMID: 15204541 DOI: 10.1080/02652030410001670157] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 10/26/2022]
Abstract
Due to its liver toxicity, the medicinal use of germander (Teucrium chamaedrys L.) was banned in some countries. Nevertheless, alcoholic extracts are still permitted as flavour ingredients since they are fundamental in providing a bitter aromatic taste. Teucrin A represents the substance of major concern regarding the potential toxicity of germander. Hence, teucrin A represents the best analytical and toxicological marker of alcoholic extracts of T. chamaedrys. A sensitive high-performance liquid chromatography method to detect teucrin A in beverages is reported. Teucrin A was prepared by isolation from the plant extract using column chromatography and crystallization. The identity and purity (99%) were established by melting point, nuclear magnetic resonance and liquid chromatography-mass spectrometry. The high-performance liquid chromatography procedure was validated and its intra- and interday performance was established (relative standard deviation < or = 13% and error < or = 10%). In-house validation was carried out by analysing samples of beverages not containing T. chamaedrys spiked with a range of concentrations of teucrin A. The limit of detection was 0.1 ppm and the limit of quantification was 0.3 ppm. Teucrin A accounted for about 70% of the neo-clerodane diterpenoids found in the total extract of a specimen of T. chamaedrys. The content (+/- standard deviation) in 18 batches of different geographical origin was 2338 +/- 740 ppm, per cent coefficient of variation = 32, minimum-maximum = 999 - 3445 ppm. The mean level of teucrin A in 10 bottles of the same brand was 6.1 +/- 0.8 ppm, per cent coefficient of variation = 12. In 10 different brands found on the Italian market, the content of teucrin A ranged from not detectable to 10 ppm.
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Affiliation(s)
- E Bosisio
- Research Center for the Characterization and Safe Use of Natural Products, Milan, Italy.
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18
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Caruso D, Crestani M, Da Riva L, Mitro N, Giavarini F, Mozzi R, Franzini C. Mass spectrometry and DNA sequencing are complementary techniques for characterizing hemoglobin variants: the example of hemoglobin J-Oxford. Haematologica 2004; 89:608-9. [PMID: 15136226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Liquid chromatography-electrospray ionization-mass spectrometry (MS) allows the characterization of most hemoglobin variants and can sometimes be a useful tool to narrow down DNA sequencing analysis. As an example, we report a case of hemoglobin variant J-Oxford, characterized by MS and DNA sequencing analysis.
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Caruso D, Da Riva L, Giavarini F, Galli G, Brambilla S, Luraschi P, Franzini C. A hemoglobin variant found during glycohemoglobin measurement, identified as Hb Toulon [alpha77(EF6)Pro-->His] by tandem mass spectrometry. Hemoglobin 2002; 26:197-9. [PMID: 12144065 DOI: 10.1081/hem-120005460] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Donatella Caruso
- Department of Pharmacological Sciences, University of Milan, Italy.
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Caruso D, Colombo R, Patelli R, Giavarini F, Galli G. Rapid evaluation of phenolic component profile and analysis of oleuropein aglycon in olive oil by atmospheric pressure chemical ionization-mass spectrometry (APCI-MS). J Agric Food Chem 2000; 48:1182-1185. [PMID: 10775369 DOI: 10.1021/jf9905370] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Epidemiological studies have linked the Mediterranean diet with a low incidence of cardiovascular diseases. Olive oil, the major fat component of this diet, is characterized by antioxidant properties related to their content in catecholic components, particularly oleuropein aglycon. Therefore quantification of these components in edible oils may be important in determining the quality, and consequently its commercial value. The present method allows us to obtain the profile of the phenolic components of the oil from the methanolic extracts of the crude olive oil. In particular tyrosol, hydroxytyrosol, elenolic acid, deacetoxyligstroside and deacetoxyoleuropein aglycons, ligstroside and oleuropein aglycons, and 10-hydroxy-oleuropein are clearly identified by atmospheric pressure chemical ionization-mass spectrometry (APCI-MS). Moreover, oleuropein and its isomers present in the oil are quantified by APCI-MS/MS analysis of the extracts without preliminary separation from other phenolic compounds.
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Affiliation(s)
- D Caruso
- Institute of Pharmacological Sciences, via Balzaretti, 9, 20133 Milan, Italy and Catholic University of Sacred Heart, Milan, Italy.
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Caruso D, Berra B, Giavarini F, Cortesi N, Fedeli E, Galli G. Effect of virgin olive oil phenolic compounds on in vitro oxidation of human low density lipoproteins. Nutr Metab Cardiovasc Dis 1999; 9:102-107. [PMID: 10464782] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
BACKGROUND AND AIM Substantial evidence suggests that oxidative modifications of low density lipoproteins (LDL) critically contribute to the pathogenesis and progression of human atherosclerosis. Oxidized LDL (oxLDL) are present in atherosclerotic plaques and contain oxysterols that exhibit a variety of adverse biological activities. Antioxidants have also been shown to prevent LDL modification. We have therefore assessed the efficacy of virgin olive oil phenolic compounds in preventing oxidative modifications of human LDL oxidized by UV light. METHODS AND RESULTS Cholesterol oxides formed during LDL photo-oxidation were determined by UV-HPLC in the presence of different concentrations of phenolic compounds and their pure components (tyrosol and oleuropein), and probucol, a widely used synthetic antioxidant. Electrophoretic mobility was also assayed. The results demonstrate that phenolic compounds are much more potent in preventing cholesterol oxide formation and apoproteic moiety modification than their pure components and probucol. CONCLUSIONS The beneficial effects of a Mediterranean diet may be ascribable not only to the high unsaturated/saturated fatty acid ratio characteristic of olive oil, but also to the unique antioxidant properties of its phenolic compounds.
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Affiliation(s)
- D Caruso
- Institute of Pharmacological Sciences, University of Milan, Italy
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23
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Mancinelli L, Chillemi F, Cardellini E, Marsili V, Giavarini F, De Angelis L, Lugaro G, Gianfranceschi GL. Molecular models of acidic peptides from pea bud chromatin and seminal plasma. Divalent cations-mediated interaction with DNA. Biol Chem 1999; 380:31-40. [PMID: 10064134 DOI: 10.1515/bc.1999.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [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: 11/15/2022]
Abstract
Small acidic peptides have been isolated from biological fluids (blood and seminal plasma) and from chromatin of several tissues. Their biological activity is related to the control of cell growth and gene expression. This work is an approach to the study of peptide structure-function relationship. Purified fractions from seminal plasma and pea bud chromatin were subjected to fast ion bombardment mass spectrometry. The results obtained were analyzed according to biochemical characteristics of the peptides studied and some possible molecular models have been designed. Two of the proposed sequences were synthesized and their biological activity assayed in cells and cell-free systems. The results demonstrate that the synthetic peptides are able to bind to DNA in the presence of divalent cations (Mg2+, Fe2+, Cu2+) with consequent inhibition of DNA transcription.
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Affiliation(s)
- L Mancinelli
- Department of Cellular and Molecular Biology, University of Perugia, Italy
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Lugaro G, Ornago E, Pagani F, De Angelis L, Giavarini F. Bovine seminal plasma contains factors that enhance lymphocyte transformation in vitro. Arch Androl 1995; 34:141-50. [PMID: 7625877 DOI: 10.3109/01485019508987842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The important immunosuppressive properties of seminal plasma have significant functions in the processes of reproduction. They mask the presence of an immunostimulating activity. From bovine seminal plasma two active factors have been isolated and characterized with marked enhancing activity for in vitro PHA-dependent lymphocyte transformation. They have inosine and hypoxanthine structures, as confirmed by UV absorption profiles, TLC, mass spectrometry, HPLC patterns, behavior to enzymatic treatments, and breaking of purine ring after acid treatment. Nevertheless, their biological activities are about two orders of magnitude higher than those of commercially available inosine and hypoxanthine standards. Biological activities became practically identical when these were processed (HPLC) in the same way as native molecules. A study to explain such a discrepancy is in progress.
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Affiliation(s)
- G Lugaro
- Istituto di Chimica degli Ormoni, CNR, Milan, Italy
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Lugaro G, De Angelis L, Giavarini F, Marsili V, Mancinelli L, Castigli E, Gianfranceschi GL. Acidic chromatin peptides. Molecular models and biological activity. Physiol Chem Phys Med NMR 1995; 27:345-349. [PMID: 8768789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- G Lugaro
- Istituto di Chimica degli Ormoni, C.N.R., Milano, Italy
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Cova D, De Angelis L, Giavarini F, Palladini G, Perego R. Pharmacokinetics and metabolism of oral diosmin in healthy volunteers. Int J Clin Pharmacol Ther Toxicol 1992; 30:29-33. [PMID: 1551741] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Pharmacokinetic studies of diosmin were performed after an oral administration to healthy volunteers. Diosmin and its aglycone, diosmetin, were determined by HPLC and LC-MS techniques. At least, at the level of sensitivity of our method, no parent compound was present in the plasma but only its aglycone, diosmetin. Analysis of the pharmacokinetic parameters showed that the drug was rapidly absorbed. Diosmetin presents a long plasma elimination half-life ranging from 26 to 43 hours. Our data show the total absence of urinary elimination for both diosmin and its aglycone diosmetin, while its minor metabolites are eliminated in the urine, mainly as glucuronic acid conjugates. The presence of degradation products such as alkyl-phenolic acids confirms a metabolic pattern similar to other flavonoids.
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Affiliation(s)
- D Cova
- Department of Pharmacology, CNR Center of Cytopharmacology, University of Milano, Italy
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