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19 results on '"Crapanzano L."'

1. Clinical features and comorbidity pattern of HCV infected migrants compared to native patients in care in Italy: A real-life evaluation of the PITER cohort

Author

Quaranta, M, Ferrigno, L, Tata, X, D'Angelo, F, Massari, M, Coppola, C, Biliotti, E, Giorgini, A, Laccabue, D, Ciancio, A, Blanc, P, Margotti, M, Ieluzzi, D, Brunetto, M, Barbaro, F, Russo, F, Beretta, I, Morsica, G, Verucchi, G, Saracino, A, Galli, M, Kondili, L, Mazzaro, C, Bertola, M, Benedetti, A, Schiada, L, Cucco, M, Giacometti, A, Brescini, L, Castelletti, S, Fiorentini, A, Angarano, G, Milella, M, Leo, A, Rendina, M, Salvatore D'ABRAMO, F, Lillo, C, Iannone, A, Piazzolla, M, Badia, L, Piscaglia, F, Benevento, F, Serio, I, Castelli, F, Zaltron, S, Spinetti, A, Odolini, S, Bruno, R, Mondelli, M, Chessa, L, Loi, M, Torti, C, Costa, C, Mazzitelli, M, Pisani, V, Scaglione, V, Trecarichi, E, Zignego, A, Monti, M, Madia, F, Attala, L, Pierotti, P, Salomoni, E, Mariabelli, E, Santantonio, T, Bruno, S, Cela, E, Bassetti, M, Mazzarello, G, Alessandrini, A, Biagio, A, Nicolini, L, Raimondo, G, Filomia, R, Aghemo, A, Meli, R, Lazzarin, A, Salpietro, S, Fracanzani, A, Fatta, E, Lombardi, R, Lampertico, P, Borghi, M, D'Ambrosio, R, Degasperi, E, Puoti, M, Baiguera, C, D'Amico, F, Vinci, M, Rumi, M, Zuin, M, Zermiani, P, Andreone, P, Caraceni, P, Guarneri, V, Villa, E, Bernabucci, V, Bristot, L, Paradiso, M, Migliorino, G, Gambaro, A, Lapadula, G, Spolti, A, Soria, A, Invernizzi, P, Ciaccio, A, Luca, M, Malinverno, F, Ratti, L, Amoruso, D, Pisano, F, Scarano, F, Staiano, L, Morisco, F, Cossiga, V, Gentile, I, Buonomo, A, Foggia, M, Zappulo, E, Federico, A, Dallio, M, Coppola, N, Sagnelli, C, Martini, S, Monari, C, Nardone, G, Sgamato, C, Chemello, L, Cavalletto, L, Sterrantino, D, Zanetto, A, Zanaga, P, Brancaccio, G, Craxi, A, Petta, S, Calvaruso, V, Crapanzano, L, Madonia, S, Cannizzaro, M, Bruno, E, Licata, A, Amodeo, S, Capitano, A, Ferrari, C, Negri, E, Orlandini, A, Pesci, M, Gulminetti, R, Pagnucco, L, Parruti, G, Stefano, P, Coco, B, Corsini, R, Garlassi, E, Andreoni, M, Teti, E, Cerva, C, Baiocchi, L, Grassi, G, Gasbarrini, A, Pompili, M, Siena, M, Taliani, G, Spaziante, M, Persico, M, Masarone, M, Aglitti, A, Calvanese, G, Anselmo, M, Leo, P, Marturano, M, Saracco, G, Quaranta M. G., Ferrigno L., Tata X., D'Angelo F., Massari M., Coppola C., Biliotti E., Giorgini A., Laccabue D., Ciancio A., Blanc P. L., Margotti M., Ieluzzi D., Brunetto M. R., Barbaro F., Russo F. P., Beretta I., Morsica G., Verucchi G., Saracino A., Galli M., Kondili L. A., Mazzaro C., Bertola M., Benedetti A., Schiada L., Cucco M., Giacometti A., Brescini L., Castelletti S., Fiorentini A., Angarano G., Milella M., Leo A. D., Rendina M., Salvatore D'ABRAMO F., Lillo C., Iannone A., Piazzolla M., Badia L., Piscaglia F., Benevento F., Serio I., Castelli F., Zaltron S., Spinetti A., Odolini S., Bruno R., Mondelli M., Chessa L., Loi M., Torti C., Costa C., Mazzitelli M., Pisani V., Scaglione V., Trecarichi E. M., Zignego A. L., Monti M., Madia F., Attala L., Pierotti P., Salomoni E., Mariabelli E., Santantonio T. A., Bruno S. R., Cela E. M., Bassetti M., Mazzarello G., Alessandrini A. I., Biagio A. D., Nicolini L. A., Raimondo G., Filomia R., Aghemo A., Meli R., Lazzarin A., Salpietro S., Fracanzani A. L., Fatta E., Lombardi R., Lampertico P., Borghi M., D'ambrosio R., Degasperi E., Puoti M., Baiguera C., D'AMICO F., Vinci M., Rumi M. G., Zuin M., Zermiani P., Andreone P., Caraceni P., Guarneri V., Villa E., Bernabucci V., Bristot L., Paradiso M. L., Migliorino G., Gambaro A., Lapadula G., Spolti A., Soria A., Invernizzi P., Ciaccio A., LucA M., Malinverno F., Ratti L., Amoruso D. C., Pisano F., Scarano F., Staiano L., Morisco F., Cossiga V., Gentile I., Buonomo A. R., Foggia M., Zappulo E., Federico A., Dallio M., Coppola N., Sagnelli C., Martini S., Monari C., Nardone G., Sgamato C., Chemello L., Cavalletto L., Sterrantino D., Zanetto A., Zanaga P., Brancaccio G., Craxi A., Petta S., Calvaruso V., Crapanzano L., Madonia S., Cannizzaro M., Bruno E. M., Licata A., Amodeo S., Capitano A. R., Ferrari C., Negri E., Orlandini A., Pesci M., Gulminetti R., Pagnucco L., Parruti G., Stefano P. D., Coco B., Corsini R., Garlassi E., Andreoni M., Teti E., Cerva C., Baiocchi L., Grassi G., Gasbarrini A., Pompili M., Siena M. D., Taliani G., Spaziante M., Persico M., Masarone M., Aglitti A., Calvanese G., Anselmo M., Leo P. D., Marturano M., Saracco G. M., Quaranta, M, Ferrigno, L, Tata, X, D'Angelo, F, Massari, M, Coppola, C, Biliotti, E, Giorgini, A, Laccabue, D, Ciancio, A, Blanc, P, Margotti, M, Ieluzzi, D, Brunetto, M, Barbaro, F, Russo, F, Beretta, I, Morsica, G, Verucchi, G, Saracino, A, Galli, M, Kondili, L, Mazzaro, C, Bertola, M, Benedetti, A, Schiada, L, Cucco, M, Giacometti, A, Brescini, L, Castelletti, S, Fiorentini, A, Angarano, G, Milella, M, Leo, A, Rendina, M, Salvatore D'ABRAMO, F, Lillo, C, Iannone, A, Piazzolla, M, Badia, L, Piscaglia, F, Benevento, F, Serio, I, Castelli, F, Zaltron, S, Spinetti, A, Odolini, S, Bruno, R, Mondelli, M, Chessa, L, Loi, M, Torti, C, Costa, C, Mazzitelli, M, Pisani, V, Scaglione, V, Trecarichi, E, Zignego, A, Monti, M, Madia, F, Attala, L, Pierotti, P, Salomoni, E, Mariabelli, E, Santantonio, T, Bruno, S, Cela, E, Bassetti, M, Mazzarello, G, Alessandrini, A, Biagio, A, Nicolini, L, Raimondo, G, Filomia, R, Aghemo, A, Meli, R, Lazzarin, A, Salpietro, S, Fracanzani, A, Fatta, E, Lombardi, R, Lampertico, P, Borghi, M, D'Ambrosio, R, Degasperi, E, Puoti, M, Baiguera, C, D'Amico, F, Vinci, M, Rumi, M, Zuin, M, Zermiani, P, Andreone, P, Caraceni, P, Guarneri, V, Villa, E, Bernabucci, V, Bristot, L, Paradiso, M, Migliorino, G, Gambaro, A, Lapadula, G, Spolti, A, Soria, A, Invernizzi, P, Ciaccio, A, Luca, M, Malinverno, F, Ratti, L, Amoruso, D, Pisano, F, Scarano, F, Staiano, L, Morisco, F, Cossiga, V, Gentile, I, Buonomo, A, Foggia, M, Zappulo, E, Federico, A, Dallio, M, Coppola, N, Sagnelli, C, Martini, S, Monari, C, Nardone, G, Sgamato, C, Chemello, L, Cavalletto, L, Sterrantino, D, Zanetto, A, Zanaga, P, Brancaccio, G, Craxi, A, Petta, S, Calvaruso, V, Crapanzano, L, Madonia, S, Cannizzaro, M, Bruno, E, Licata, A, Amodeo, S, Capitano, A, Ferrari, C, Negri, E, Orlandini, A, Pesci, M, Gulminetti, R, Pagnucco, L, Parruti, G, Stefano, P, Coco, B, Corsini, R, Garlassi, E, Andreoni, M, Teti, E, Cerva, C, Baiocchi, L, Grassi, G, Gasbarrini, A, Pompili, M, Siena, M, Taliani, G, Spaziante, M, Persico, M, Masarone, M, Aglitti, A, Calvanese, G, Anselmo, M, Leo, P, Marturano, M, Saracco, G, Quaranta M. G., Ferrigno L., Tata X., D'Angelo F., Massari M., Coppola C., Biliotti E., Giorgini A., Laccabue D., Ciancio A., Blanc P. L., Margotti M., Ieluzzi D., Brunetto M. R., Barbaro F., Russo F. P., Beretta I., Morsica G., Verucchi G., Saracino A., Galli M., Kondili L. A., Mazzaro C., Bertola M., Benedetti A., Schiada L., Cucco M., Giacometti A., Brescini L., Castelletti S., Fiorentini A., Angarano G., Milella M., Leo A. D., Rendina M., Salvatore D'ABRAMO F., Lillo C., Iannone A., Piazzolla M., Badia L., Piscaglia F., Benevento F., Serio I., Castelli F., Zaltron S., Spinetti A., Odolini S., Bruno R., Mondelli M., Chessa L., Loi M., Torti C., Costa C., Mazzitelli M., Pisani V., Scaglione V., Trecarichi E. M., Zignego A. L., Monti M., Madia F., Attala L., Pierotti P., Salomoni E., Mariabelli E., Santantonio T. A., Bruno S. R., Cela E. M., Bassetti M., Mazzarello G., Alessandrini A. I., Biagio A. D., Nicolini L. A., Raimondo G., Filomia R., Aghemo A., Meli R., Lazzarin A., Salpietro S., Fracanzani A. L., Fatta E., Lombardi R., Lampertico P., Borghi M., D'ambrosio R., Degasperi E., Puoti M., Baiguera C., D'AMICO F., Vinci M., Rumi M. G., Zuin M., Zermiani P., Andreone P., Caraceni P., Guarneri V., Villa E., Bernabucci V., Bristot L., Paradiso M. L., Migliorino G., Gambaro A., Lapadula G., Spolti A., Soria A., Invernizzi P., Ciaccio A., LucA M., Malinverno F., Ratti L., Amoruso D. C., Pisano F., Scarano F., Staiano L., Morisco F., Cossiga V., Gentile I., Buonomo A. R., Foggia M., Zappulo E., Federico A., Dallio M., Coppola N., Sagnelli C., Martini S., Monari C., Nardone G., Sgamato C., Chemello L., Cavalletto L., Sterrantino D., Zanetto A., Zanaga P., Brancaccio G., Craxi A., Petta S., Calvaruso V., Crapanzano L., Madonia S., Cannizzaro M., Bruno E. M., Licata A., Amodeo S., Capitano A. R., Ferrari C., Negri E., Orlandini A., Pesci M., Gulminetti R., Pagnucco L., Parruti G., Stefano P. D., Coco B., Corsini R., Garlassi E., Andreoni M., Teti E., Cerva C., Baiocchi L., Grassi G., Gasbarrini A., Pompili M., Siena M. D., Taliani G., Spaziante M., Persico M., Masarone M., Aglitti A., Calvanese G., Anselmo M., Leo P. D., Marturano M., and Saracco G. M.

Abstract

Background: Direct-acting antivirals are highly effective for the treatment of hepatitis C virus (HCV) infection, regardless race/ethnicity. We aimed to evaluate demographic, virological and clinical data of HCV-infected migrants vs. natives consecutively enrolled in the PITER cohort. Methods: Migrants were defined by country of birth and nationality that was different from Italy. Mann-Whitney U test, Chi-squared test and multiple logistic regression were used. Results: Of 10,669 enrolled patients, 301 (2.8%) were migrants: median age 47 vs. 62 years, (p < 0.001), females 56.5% vs. 45.3%, (p < 0.001), HBsAg positivity 3.8% vs. 1.4%, (p < 0.05). Genotype 1b was prevalent in both groups, whereas genotype 4 was more prevalent in migrants (p < 0.05). Liver disease severity and sustained virologic response (SVR) were similar. A higher prevalence of comorbidities was reported for natives compared to migrants (p < 0.05). Liver disease progression cofactors (HBsAg, HIV coinfection, alcohol abuse, potential metabolic syndrome) were present in 39.1% and 47.1% (p > 0.05) of migrants and natives who eradicated HCV, respectively. Conclusion: Compared to natives, HCV-infected migrants in care have different demographics, HCV genotypes, viral coinfections and comorbidities and similar disease severity, SVR and cofactors for disease progression after HCV eradication. A periodic clinical assessment after HCV eradication in Italians and migrants with cofactors for disease progression is warranted.

Published
2021

4. Clinical features and comorbidity pattern of HCV infected migrants compared to native patients in care in Italy: A real-life evaluation of the PITER cohort

Author

Quaranta, M. G., Ferrigno, L., Tata, X., D'Angelo, Francesca Bice, Massari, Massimo, Coppola, C., Biliotti, E., Giorgini, A., Laccabue, D., Ciancio, A., Blanc, P. L., Margotti, M., Ieluzzi, D., Brunetto, M. R., Barbaro, Federico, Russo, F. P., Beretta, I., Morsica, G., Verucchi, G., Saracino, A., Galli, M., Kondili, L. A., Mazzaro, C., Bertola, M., Benedetti, A., Schiada, L., Cucco, Marco, Giacometti, A., Brescini, L., Castelletti, S., Fiorentini, A., Angarano, G., Milella, M., Leo, A. D., Rendina, Marco, Salvatore D'ABRAMO, F., Lillo, C., Iannone, A., Piazzolla, M., Badia, L., Piscaglia, F., Benevento, F., Serio, I., Castelli, F., Zaltron, S., Spinetti, A., Odolini, S., Bruno, Rosa Anna, Mondelli, M., Chessa, L., Loi, M., Torti, Carlo, Costa, C., Mazzitelli, M., Pisani, V., Scaglione, V., Trecarichi, Enrico Maria, Zignego, A. L., Monti, M., Madia, Francesca, Attala, L., Pierotti, P., Salomoni, E., Mariabelli, E., Santantonio, T. A., Bruno, S. R., Cela, E. M., Bassetti, M., Mazzarello, G., Alessandrini, A. I., Biagio, A. D., Nicolini, L. A., Raimondo, G., Filomia, R., Aghemo, A., Meli, R., Lazzarin, A., Salpietro, S., Fracanzani, A. L., Fatta, E., Lombardi, Roberto, Lampertico, P., Borghi, Margherita, D'Ambrosio, Roberto, Degasperi, E., Puoti, M., Baiguera, C., D'Amico, F., Vinci, Maria Rosaria, Rumi, M. G., Zuin, M., Zermiani, P., Andreone, P., Caraceni, P., Guarneri, V., Villa, E., Bernabucci, V., Bristot, Luca, Paradiso, M. L., Migliorino, G., Gambaro, A., Lapadula, G., Spolti, A., Soria, A., Invernizzi, P., Ciaccio, A., Luca, M., Malinverno, F., Ratti, L., Amoruso, D. C., Pisano, Francesco, Scarano, F., Staiano, L., Morisco, F., Cossiga, V., Gentile, I., Buonomo, A. R., Foggia, M., Zappulo, E., Federico, A., Dallio, M., Coppola, N., Sagnelli, C., Martini, Simone, Monari, C., Nardone, G., Sgamato, C., Chemello, L., Cavalletto, L., Sterrantino, D., Zanetto, A., Zanaga, P., Brancaccio, G., Craxi, A., Petta, S., Calvaruso, V., Crapanzano, L., Madonia, S., Cannizzaro, Maria Chiara, Bruno, E. M., Licata, Maria Angela Vittoria Anna Chiara, Amodeo, Silvia, Capitano, A. R., Ferrari, C., Negri, Erica, Orlandini, A., Pesci, M., Gulminetti, R., Pagnucco, L., Parruti, G., Stefano, P. D., Coco, B., Corsini, R., Garlassi, E., Andreoni, M., Teti, E., Cerva, C., Baiocchi, Luca, Grassi, G., Gasbarrini, Antonio, Pompili, Maurizio, Siena, M. D., Taliani, G., Spaziante, M., Persico, M., Masarone, M., Aglitti, A., Calvanese, G., Anselmo, M., Leo, P. D., Marturano, Monia, Saracco, G. M., D'Angelo F., Massari M. (ORCID:0000-0001-7048-6374), Barbaro F., Cucco M., Rendina M., Bruno R., Torti C., Trecarichi E. M., Madia F., Lombardi R., Borghi M., D'ambrosio R., Vinci M., Bristot L., Pisano F., Martini S., Cannizzaro M., Licata A., Amodeo S., Negri E., Baiocchi L., Gasbarrini A. (ORCID:0000-0002-7278-4823), Pompili M. (ORCID:0000-0001-6699-7980), Marturano M., Quaranta, M. G., Ferrigno, L., Tata, X., D'Angelo, Francesca Bice, Massari, Massimo, Coppola, C., Biliotti, E., Giorgini, A., Laccabue, D., Ciancio, A., Blanc, P. L., Margotti, M., Ieluzzi, D., Brunetto, M. R., Barbaro, Federico, Russo, F. P., Beretta, I., Morsica, G., Verucchi, G., Saracino, A., Galli, M., Kondili, L. A., Mazzaro, C., Bertola, M., Benedetti, A., Schiada, L., Cucco, Marco, Giacometti, A., Brescini, L., Castelletti, S., Fiorentini, A., Angarano, G., Milella, M., Leo, A. D., Rendina, Marco, Salvatore D'ABRAMO, F., Lillo, C., Iannone, A., Piazzolla, M., Badia, L., Piscaglia, F., Benevento, F., Serio, I., Castelli, F., Zaltron, S., Spinetti, A., Odolini, S., Bruno, Rosa Anna, Mondelli, M., Chessa, L., Loi, M., Torti, Carlo, Costa, C., Mazzitelli, M., Pisani, V., Scaglione, V., Trecarichi, Enrico Maria, Zignego, A. L., Monti, M., Madia, Francesca, Attala, L., Pierotti, P., Salomoni, E., Mariabelli, E., Santantonio, T. A., Bruno, S. R., Cela, E. M., Bassetti, M., Mazzarello, G., Alessandrini, A. I., Biagio, A. D., Nicolini, L. A., Raimondo, G., Filomia, R., Aghemo, A., Meli, R., Lazzarin, A., Salpietro, S., Fracanzani, A. L., Fatta, E., Lombardi, Roberto, Lampertico, P., Borghi, Margherita, D'Ambrosio, Roberto, Degasperi, E., Puoti, M., Baiguera, C., D'Amico, F., Vinci, Maria Rosaria, Rumi, M. G., Zuin, M., Zermiani, P., Andreone, P., Caraceni, P., Guarneri, V., Villa, E., Bernabucci, V., Bristot, Luca, Paradiso, M. L., Migliorino, G., Gambaro, A., Lapadula, G., Spolti, A., Soria, A., Invernizzi, P., Ciaccio, A., Luca, M., Malinverno, F., Ratti, L., Amoruso, D. C., Pisano, Francesco, Scarano, F., Staiano, L., Morisco, F., Cossiga, V., Gentile, I., Buonomo, A. R., Foggia, M., Zappulo, E., Federico, A., Dallio, M., Coppola, N., Sagnelli, C., Martini, Simone, Monari, C., Nardone, G., Sgamato, C., Chemello, L., Cavalletto, L., Sterrantino, D., Zanetto, A., Zanaga, P., Brancaccio, G., Craxi, A., Petta, S., Calvaruso, V., Crapanzano, L., Madonia, S., Cannizzaro, Maria Chiara, Bruno, E. M., Licata, Maria Angela Vittoria Anna Chiara, Amodeo, Silvia, Capitano, A. R., Ferrari, C., Negri, Erica, Orlandini, A., Pesci, M., Gulminetti, R., Pagnucco, L., Parruti, G., Stefano, P. D., Coco, B., Corsini, R., Garlassi, E., Andreoni, M., Teti, E., Cerva, C., Baiocchi, Luca, Grassi, G., Gasbarrini, Antonio, Pompili, Maurizio, Siena, M. D., Taliani, G., Spaziante, M., Persico, M., Masarone, M., Aglitti, A., Calvanese, G., Anselmo, M., Leo, P. D., Marturano, Monia, Saracco, G. M., D'Angelo F., Massari M. (ORCID:0000-0001-7048-6374), Barbaro F., Cucco M., Rendina M., Bruno R., Torti C., Trecarichi E. M., Madia F., Lombardi R., Borghi M., D'ambrosio R., Vinci M., Bristot L., Pisano F., Martini S., Cannizzaro M., Licata A., Amodeo S., Negri E., Baiocchi L., Gasbarrini A. (ORCID:0000-0002-7278-4823), Pompili M. (ORCID:0000-0001-6699-7980), and Marturano M.

Abstract

Background: Direct-acting antivirals are highly effective for the treatment of hepatitis C virus (HCV) infection, regardless race/ethnicity. We aimed to evaluate demographic, virological and clinical data of HCV-infected migrants vs. natives consecutively enrolled in the PITER cohort. Methods: Migrants were defined by country of birth and nationality that was different from Italy. Mann-Whitney U test, Chi-squared test and multiple logistic regression were used. Results: Of 10,669 enrolled patients, 301 (2.8%) were migrants: median age 47 vs. 62 years, (p < 0.001), females 56.5% vs. 45.3%, (p < 0.001), HBsAg positivity 3.8% vs. 1.4%, (p < 0.05). Genotype 1b was prevalent in both groups, whereas genotype 4 was more prevalent in migrants (p < 0.05). Liver disease severity and sustained virologic response (SVR) were similar. A higher prevalence of comorbidities was reported for natives compared to migrants (p < 0.05). Liver disease progression cofactors (HBsAg, HIV coinfection, alcohol abuse, potential metabolic syndrome) were present in 39.1% and 47.1% (p > 0.05) of migrants and natives who eradicated HCV, respectively. Conclusion: Compared to natives, HCV-infected migrants in care have different demographics, HCV genotypes, viral coinfections and comorbidities and similar disease severity, SVR and cofactors for disease progression after HCV eradication. A periodic clinical assessment after HCV eradication in Italians and migrants with cofactors for disease progression is warranted.

Published
2021

5. New onset steatosis but not persistent steatosis prevents hepatic fibrosis improvement after viral eradication by direct-acting antiviral therapy (DAAs) in patients with chronic hepatitis C: Evaluation by controlled attenuation parameter (CAP) and liver stiffness measurement LSM

Author

Cespiati, A., primary, Petta, S., additional, Lombardi, R., additional, Di Marco, V., additional, Calvaruso, V., additional, Bertelli, C., additional, Pisano, G., additional, Fatta, E., additional, Sigon, G., additional, Iuculano, F., additional, Crapanzano, L., additional, Gibilaro, G., additional, Francione, P., additional, Craxì, A., additional, Fargion, S., additional, and Fracanzani, A.L., additional

Published
2021
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9. Investigating self-assembly and metal nanoclusters in aqueous di-block copolymers solutions

Author

Lo Celso F., Triolo A., Bronstein L., Zwanziger J., Strunz P., Lin J. S., Crapanzano L., and Triolo R.

Abstract

Self-assembling properties of di-block copolymers/ surfactant hybrids in aqueous solution can be exploited to obtain metal nanoparticles stable dispersion. Results will be presented here for polystyrene-block-poly(ethylene oxide) solutions. A SANS structural investigation has been performed over different molecular weights of both hydrophilic and hydrophobic block, by varying temperature and concentration of the copolymer. A SAXS characterization of micellar systems containing Pt nanoparticles is reported.

Published
2002

12. Clinical features and comorbidity pattern of HCV infected migrants compared to native patients in care in Italy: A real-life evaluation of the PITER cohort

Author

Maria Giovanna Quaranta, Luigina Ferrigno, Xhimi Tata, Franca D'Angelo, Marco Massari, Carmine Coppola, Elisa Biliotti, Alessia Giorgini, Diletta Laccabue, Alessia Ciancio, Pier Luigi Blanc, Marzia Margotti, Donatella Ieluzzi, Maurizia Rossana Brunetto, Francesco Barbaro, Francesco Paolo Russo, Ilaria Beretta, Giulia Morsica, Gabriella Verucchi, Annalisa Saracino, Massimo Galli, Loeta A. Kondili, Cesare Mazzaro, Manuela Bertola, Ornella Schioppa, Antonio Benedetti, Laura Schiadà, Monica Cucco, Andrea Giacometti, Laura Brescini, Sefora Castelletti, Alessandro Fiorentini, Gioacchino Angarano, Michele Milella, Alfredo Di Leo, Maria Rendina, Fulvio Salvatore D'abramo, Chiara Lillo, Andrea Iannone, Mariano Piazzolla, Lorenzo Badia, Fabio Piscaglia, Francesca Benevento, Ilaria Serio, Francesco Castelli, Serena Zaltron, Angiola Spinetti, Silvia Odolini, Raffaele Bruno, Mario Mondelli, Luchino Chessa, Martina Loi, Carlo Torti, Chiara Costa, Maria Mazzitelli, Vincenzo Pisani, Vincenzo Scaglione, Enrico Maria Trecarichi, Anna Linda Zignego, Monica Monti, Francesco Madia, Letizia Attala, Piera Pierotti, Elena Salomoni, Elisa Mariabelli, Teresa Antonia Santantonio, Serena Rita Bruno, Ester Marina Cela, Matteo Bassetti, Giovanni Mazzarello, Anna Ida Alessandrini, Antonio Di Biagio, Laura Ambra Nicolini, Giovanni Raimondo, Roberto Filomia, Alessio Aghemo, Rossella Meli, Adriano Lazzarin, Stefania Salpietro, Anna Ludovica Fracanzani, Erika Fatta, Rosa Lombardi, Pietro Lampertico, Marta Borghi, Roberta D'ambrosio, Elisabetta Degasperi, Massimo Puoti, Chiara Baiguera, Federico D'amico, Maria Vinci, Maria Grazia Rumi, Massimo Zuin, Paola Zermiani, Pietro Andreone, Paolo Caraceni, Valeria Guarneri, Erica Villa, Veronica Bernabucci, Laura Bristot, Maria Luisa Paradiso, Guglielmo Migliorino, Alessandra Gambaro, Giuseppe Lapadula, Anna Spolti, Alessandro Soria, Pietro Invernizzi, Antonio Ciaccio, Martina LucÀ, Federica Malinverno, Laura Ratti, Daniela Caterina Amoruso, Federica Pisano, Ferdinando Scarano, Laura Staiano, Filomena Morisco, Valentina Cossiga, Ivan Gentile, Antonio Riccardo Buonomo, Maria Foggia, Emanuela Zappulo, Alessandro Federico, Marcello Dallio, Nicola Coppola, Caterina Sagnelli, Salvatore Martini, Caterina Monari, Gerardo Nardone, Costantino Sgamato, Liliana Chemello, Luisa Cavalletto, Daniela Sterrantino, Alberto Zanetto, Paola Zanaga, Giuseppina Brancaccio, Antonio Craxì, Salvatore Petta, Vincenza Calvaruso, Luciano Crapanzano, Salvatore Madonia, Marco Cannizzaro, Erica Maria Bruno, Anna Licata, Simona Amodeo, Adele Rosaria Capitano, Carlo Ferrari, Elisa Negri, Alessandra Orlandini, Marco Pesci, Roberto Gulminetti, Layla Pagnucco, Giustino Parruti, Paola Di Stefano, Barbara Coco, Romina Corsini, Elisa Garlassi, Massimo Andreoni, Elisabetta Teti, Carlotta Cerva, Lorenzo Baiocchi, Giuseppe Grassi, Antonio Gasbarrini, Maurizio Pompili, Martina De Siena, Gloria Taliani, Martina Spaziante, Marcello Persico, Mario Masarone, Andrea Aglitti, Gemma Calvanese, Marco Anselmo, Pasqualina De Leo, Monica Marturano, Giorgio Maria Saracco, Quaranta M.G., Ferrigno L., Tata X., D'Angelo F., Massari M., Coppola C., Biliotti E., Giorgini A., Laccabue D., Ciancio A., Blanc P.L., Margotti M., Ieluzzi D., Brunetto M.R., Barbaro F., Russo F.P., Beretta I., Morsica G., Verucchi G., Saracino A., Galli M., Kondili L.A., Mazzaro C., Bertola M., Benedetti A., Schiada L., Cucco M., Giacometti A., Brescini L., Castelletti S., Fiorentini A., Angarano G., Milella M., Leo A.D., Rendina M., Salvatore D'ABRAMO F., Lillo C., Iannone A., Piazzolla M., Badia L., Piscaglia F., Benevento F., Serio I., Castelli F., Zaltron S., Spinetti A., Odolini S., Bruno R., Mondelli M., Chessa L., Loi M., Torti C., Costa C., Mazzitelli M., Pisani V., Scaglione V., Trecarichi E.M., Zignego A.L., Monti M., Madia F., Attala L., Pierotti P., Salomoni E., Mariabelli E., Santantonio T.A., Bruno S.R., Cela E.M., Bassetti M., Mazzarello G., Alessandrini A.I., Biagio A.D., Nicolini L.A., Raimondo G., Filomia R., Aghemo A., Meli R., Lazzarin A., Salpietro S., Fracanzani A.L., Fatta E., Lombardi R., Lampertico P., Borghi M., D'ambrosio R., Degasperi E., Puoti M., Baiguera C., D'AMICO F., Vinci M., Rumi M.G., Zuin M., Zermiani P., Andreone P., Caraceni P., Guarneri V., Villa E., Bernabucci V., Bristot L., Paradiso M.L., Migliorino G., Gambaro A., Lapadula G., Spolti A., Soria A., Invernizzi P., Ciaccio A., LucA M., Malinverno F., Ratti L., Amoruso D.C., Pisano F., Scarano F., Staiano L., Morisco F., Cossiga V., Gentile I., Buonomo A.R., Foggia M., Zappulo E., Federico A., Dallio M., Coppola N., Sagnelli C., Martini S., Monari C., Nardone G., Sgamato C., Chemello L., Cavalletto L., Sterrantino D., Zanetto A., Zanaga P., Brancaccio G., Craxi A., Petta S., Calvaruso V., Crapanzano L., Madonia S., Cannizzaro M., Bruno E.M., Licata A., Amodeo S., Capitano A.R., Ferrari C., Negri E., Orlandini A., Pesci M., Gulminetti R., Pagnucco L., Parruti G., Stefano P.D., Coco B., Corsini R., Garlassi E., Andreoni M., Teti E., Cerva C., Baiocchi L., Grassi G., Gasbarrini A., Pompili M., Siena M.D., Taliani G., Spaziante M., Persico M., Masarone M., Aglitti A., Calvanese G., Anselmo M., Leo P.D., Marturano M., Saracco G.M., Quaranta, M, Ferrigno, L, Tata, X, D'Angelo, F, Massari, M, Coppola, C, Biliotti, E, Giorgini, A, Laccabue, D, Ciancio, A, Blanc, P, Margotti, M, Ieluzzi, D, Brunetto, M, Barbaro, F, Russo, F, Beretta, I, Morsica, G, Verucchi, G, Saracino, A, Galli, M, Kondili, L, Mazzaro, C, Bertola, M, Benedetti, A, Schiada, L, Cucco, M, Giacometti, A, Brescini, L, Castelletti, S, Fiorentini, A, Angarano, G, Milella, M, Leo, A, Rendina, M, Salvatore D'ABRAMO, F, Lillo, C, Iannone, A, Piazzolla, M, Badia, L, Piscaglia, F, Benevento, F, Serio, I, Castelli, F, Zaltron, S, Spinetti, A, Odolini, S, Bruno, R, Mondelli, M, Chessa, L, Loi, M, Torti, C, Costa, C, Mazzitelli, M, Pisani, V, Scaglione, V, Trecarichi, E, Zignego, A, Monti, M, Madia, F, Attala, L, Pierotti, P, Salomoni, E, Mariabelli, E, Santantonio, T, Bruno, S, Cela, E, Bassetti, M, Mazzarello, G, Alessandrini, A, Biagio, A, Nicolini, L, Raimondo, G, Filomia, R, Aghemo, A, Meli, R, Lazzarin, A, Salpietro, S, Fracanzani, A, Fatta, E, Lombardi, R, Lampertico, P, Borghi, M, D'Ambrosio, R, Degasperi, E, Puoti, M, Baiguera, C, D'Amico, F, Vinci, M, Rumi, M, Zuin, M, Zermiani, P, Andreone, P, Caraceni, P, Guarneri, V, Villa, E, Bernabucci, V, Bristot, L, Paradiso, M, Migliorino, G, Gambaro, A, Lapadula, G, Spolti, A, Soria, A, Invernizzi, P, Ciaccio, A, Luca, M, Malinverno, F, Ratti, L, Amoruso, D, Pisano, F, Scarano, F, Staiano, L, Morisco, F, Cossiga, V, Gentile, I, Buonomo, A, Foggia, M, Zappulo, E, Federico, A, Dallio, M, Coppola, N, Sagnelli, C, Martini, S, Monari, C, Nardone, G, Sgamato, C, Chemello, L, Cavalletto, L, Sterrantino, D, Zanetto, A, Zanaga, P, Brancaccio, G, Craxi, A, Petta, S, Calvaruso, V, Crapanzano, L, Madonia, S, Cannizzaro, M, Bruno, E, Licata, A, Amodeo, S, Capitano, A, Ferrari, C, Negri, E, Orlandini, A, Pesci, M, Gulminetti, R, Pagnucco, L, Parruti, G, Stefano, P, Coco, B, Corsini, R, Garlassi, E, Andreoni, M, Teti, E, Cerva, C, Baiocchi, L, Grassi, G, Gasbarrini, A, Pompili, M, Siena, M, Taliani, G, Spaziante, M, Persico, M, Masarone, M, Aglitti, A, Calvanese, G, Anselmo, M, Leo, P, Marturano, M, Saracco, G, Quaranta, M. G., Ferrigno, L., Tata, X., D'Angelo, F., Massari, M., Coppola, C., Biliotti, E., Giorgini, A., Laccabue, D., Ciancio, A., Blanc, P. L., Margotti, M., Ieluzzi, D., Brunetto, M. R., Barbaro, F., Russo, F. P., Beretta, I., Morsica, G., Verucchi, G., Saracino, A., Galli, M., Kondili, L. A., Mazzaro, C., Bertola, M., Benedetti, A., Schiada, L., Cucco, M., Giacometti, A., Brescini, L., Castelletti, S., Fiorentini, A., Angarano, G., Milella, M., Leo, A. D., Rendina, M., Salvatore D'ABRAMO, F., Lillo, C., Iannone, A., Piazzolla, M., Badia, L., Piscaglia, F., Benevento, F., Serio, I., Castelli, F., Zaltron, S., Spinetti, A., Odolini, S., Bruno, R., Mondelli, M., Chessa, L., Loi, M., Torti, C., Costa, C., Mazzitelli, M., Pisani, V., Scaglione, V., Trecarichi, E. M., Zignego, A. L., Monti, M., Madia, F., Attala, L., Pierotti, P., Salomoni, E., Mariabelli, E., Santantonio, T. A., Bruno, S. R., Cela, E. M., Bassetti, M., Mazzarello, G., Alessandrini, A. I., Biagio, A. D., Nicolini, L. A., Raimondo, G., Filomia, R., Aghemo, A., Meli, R., Lazzarin, A., Salpietro, S., Fracanzani, A. L., Fatta, E., Lombardi, R., Lampertico, P., Borghi, M., D'Ambrosio, R., Degasperi, E., Puoti, M., Baiguera, C., D'Amico, F., Vinci, M., Rumi, M. G., Zuin, M., Zermiani, P., Andreone, P., Caraceni, P., Guarneri, V., Villa, E., Bernabucci, V., Bristot, L., Paradiso, M. L., Migliorino, G., Gambaro, A., Lapadula, G., Spolti, A., Soria, A., Invernizzi, P., Ciaccio, A., Luca, M., Malinverno, F., Ratti, L., Amoruso, D. C., Pisano, F., Scarano, F., Staiano, L., Morisco, F., Cossiga, V., Gentile, I., Buonomo, A. R., Foggia, M., Zappulo, E., Federico, A., Dallio, M., Coppola, N., Sagnelli, C., Martini, S., Monari, C., Nardone, G., Sgamato, C., Chemello, L., Cavalletto, L., Sterrantino, D., Zanetto, A., Zanaga, P., Brancaccio, G., Craxi, A., Petta, S., Calvaruso, V., Crapanzano, L., Madonia, S., Cannizzaro, M., Bruno, E. M., Licata, A., Amodeo, S., Capitano, A. R., Ferrari, C., Negri, E., Orlandini, A., Pesci, M., Gulminetti, R., Pagnucco, L., Parruti, G., Stefano, P. D., Coco, B., Corsini, R., Garlassi, E., Andreoni, M., Teti, E., Cerva, C., Baiocchi, L., Grassi, G., Gasbarrini, A., Pompili, M., Siena, M. D., Taliani, G., Spaziante, M., Persico, M., Masarone, M., Aglitti, A., Calvanese, G., Anselmo, M., Leo, P. D., Marturano, M., and Saracco, G. M.

Subjects
Male, HCV genotypes, Ethnic group, Linked-to-care patient, Comorbidity, Hepacivirus, Logistic regression, medicine.disease_cause, Comorbidities, Direct acting antivirals, HCV Cohort, Linked-to-care patients, Aged, Antiviral Agents, Coinfection, Female, Hepatitis C, Chronic, Humans, Italy, Middle Aged, Transients and Migrants, 0302 clinical medicine, Medicine, Chronic, Gastroenterology, virus diseases, Hepatitis C, Life evaluation, 030220 oncology & carcinogenesis, Cohort, 030211 gastroenterology & hepatology, Comorbiditie, Human, Hepatitis C virus, Settore MED/12 - GASTROENTEROLOGIA, 03 medical and health sciences, Disease severity, Antiviral Agent, Hepaciviru, Hepatology, business.industry, Settore MED/09 - MEDICINA INTERNA, medicine.disease, digestive system diseases, Direct acting antiviral, business, Demography
Abstract

Background: Direct-acting antivirals are highly effective for the treatment of hepatitis C virus (HCV) infection, regardless race/ethnicity. We aimed to evaluate demographic, virological and clinical data of HCV-infected migrants vs. natives consecutively enrolled in the PITER cohort. Methods: Migrants were defined by country of birth and nationality that was different from Italy. Mann-Whitney U test, Chi-squared test and multiple logistic regression were used. Results: Of 10,669 enrolled patients, 301 (2.8%) were migrants: median age 47 vs. 62 years, (p < 0.001), females 56.5% vs. 45.3%, (p < 0.001), HBsAg positivity 3.8% vs. 1.4%, (p < 0.05). Genotype 1b was prevalent in both groups, whereas genotype 4 was more prevalent in migrants (p < 0.05). Liver disease severity and sustained virologic response (SVR) were similar. A higher prevalence of comorbidities was reported for natives compared to migrants (p < 0.05). Liver disease progression cofactors (HBsAg, HIV coinfection, alcohol abuse, potential metabolic syndrome) were present in 39.1% and 47.1% (p > 0.05) of migrants and natives who eradicated HCV, respectively. Conclusion: Compared to natives, HCV-infected migrants in care have different demographics, HCV genotypes, viral coinfections and comorbidities and similar disease severity, SVR and cofactors for disease progression after HCV eradication. A periodic clinical assessment after HCV eradication in Italians and migrants with cofactors for disease progression is warranted.

Published
2021

13. Metabolic comorbidities and male sex influence steatosis in chronic hepatitis C after viral eradication by direct-acting antiviral therapy (DAAs): Evaluation by the controlled attenuation parameter (CAP)

Author

Anna Ludovica Fracanzani, A. Cespiati, Luciano Crapanzano, Cristina Bertelli, Silvia Fargion, Giuseppina Pisano, Antonio Craxì, F. Iuculano, Vito Di Marco, Salvatore Petta, Paolo Francione, Rosa Lombardi, Vincenza Calvaruso, Erika Fatta, Gerlando Gibilaro, G. Sigon, Cespiati A., Petta S., Lombardi R., Di Marco V., Calvaruso V., Bertelli C., Pisano G., Fatta E., Sigon G., Iuculano F., Crapanzano L., Gibilaro G., Francione P., Craxi A., Silvia F., and Ludovica F.A.

Subjects
Male, medicine.medical_specialty, Sustained Virologic Response, Overweight, Gastroenterology, Antiviral Agents, 03 medical and health sciences, 0302 clinical medicine, Chronic hepatitis, Internal medicine, Genotype, medicine, Humans, De novo steatosi, DAA, Aged, Retrospective Studies, Hypertriglyceridemia, Hepatology, business.industry, Fatty liver, Antiviral therapy, Hepatitis C, Chronic, Middle Aged, medicine.disease, Male sex, Fatty Liver, SVR, Italy, 030220 oncology & carcinogenesis, HCV, 030211 gastroenterology & hepatology, Female, medicine.symptom, Steatosis, business, Direct acting
Abstract

Background: Chronic hepatitis C (CHC) is associated with hepatic steatosis, related to both a direct viral action and metabolic features. Vice-versa data on hepatic steatosis after viral eradication by direct-acting antiviral agents (DAA) are undefined although the presence of metabolic alterations could strongly influence the occurrence of steatosis as in NAFLD. The controlled attenuation parameter (CAP) (FibroscanⓇ) allows the qualitative and quantitative evaluation of fatty liver. Aim: to evaluate in patients with CHC whether hepatic steatosis diagnosed by CAP modifies after DAAs-induced sustained virologic response (SVR). Methods: Data were collected the day of DAAs therapy starting and six months after SVR. CAP ≥ 248 dB/m defined the presence of steatosis. Results: 794 CHC SVR patients referring to 2 Italian Units were enrolled. Mean age was 64 ± 16 ys, 50% males, BMI 25.4 ± 4 kg/m2, genotype type-1 in 73%, type-3 in 8%. Prevalence of hepatic steatosis at baseline was 32% by US and 46% by CAP. De novo steatosis developed in 125 (29%), resolution in 122 (30%). At multivariate analysis de novo steatosis was independently associated with male sex (OR 1.7, CI 95% 1.09–2.67; p = 0.02) and baseline BMI (for unit increase OR 1.19, CI 95%1.11–1.29; p < 0.001). Baseline BMI (for unit increase OR 0.47, CI 95% 0.25–0.89; p = 0.02) and triglycerides (for unit increase OR 0.93, CI 95% 0.87–0.99; p = 0.03) prevented steatosis resolution after therapy. Conclusions: after SVR de novo steatosis and resolution of baseline steatosis are closely related to the presence of metabolic comorbidities.

Published
2020

14. RESIST-HCV Criteria to Monitor Progression of Low-Risk Esophageal Varices in Patients With Compensated Cirrhosis After HCV Eradication: The SIMPLE Study: SIMPLE: Scoring Index to Monitor Progression of Low-risk Esophageal varices.

Author

Calvaruso V, Celsa C, D'Ambrosio R, Simone F, Petta S, Cacciola I, Enea M, Battaglia S, Pandolfo A, Licata M, Degasperi E, Cabibbo G, Di Marco L, Pennisi G, Borghi M, Di Martino V, Filomia R, Abdel-Hadi Y, Crapanzano L, Raimondo G, Lampertico P, Craxì A, Cammà C, and Di Marco V

Subjects
Male, Humans, Aged, Female, Hepacivirus, Antiviral Agents therapeutic use, Platelet Count, Liver Cirrhosis diagnosis, Serum Albumin, Esophageal and Gastric Varices diagnosis, Esophageal and Gastric Varices etiology, Esophageal and Gastric Varices drug therapy, Hepatitis C, Chronic complications, Hepatitis C, Chronic drug therapy, Elasticity Imaging Techniques
Abstract

Introduction: Noninvasive criteria to predict the progression of low-risk esophageal varices (EV) in patients with compensated hepatitis C virus (HCV) cirrhosis after sustained virological response (SVR) by direct-acting antivirals (DAAs) are lacking. Our aim was to assess the diagnostic performance of Rete Sicilia Selezione Terapia-HCV (RESIST-HCV) criteria for EV progression compared with elastography-based criteria (Baveno VI, Expanded Baveno VI, and Baveno VII-HCV criteria)., Methods: All consecutive patients observed at 3 referral centers with compensated HCV cirrhosis with or without F1 EV who achieved sustained virological response by DAAs were classified at last esophagogastroduodenoscopy (EGDS) as RESIST-HCV low risk (i.e., low probability of high-risk varices [HRV]) if platelets were >120 × 10 9 /L and serum albumin >3.6 g/dL or RESIST-HCV high risk (i.e., high probability of HRV) if platelets were <120 × 10 9 /L or serum albumin <3.6 g/dL. The primary outcome was the progression to HRV. The area under the receiver operating characteristic curve and decision curve analysis of noninvasive criteria were calculated., Results: The cohort consisted of 353 patients in Child-Pugh class A (mean age 67.2 years, 53.8% males). During a mean follow-up of 44.2 months, 34 patients (9.6%, 95% CI 6.7%-13.5%) developed HRV. At the last EGDS, 178 patients (50.4%) were RESIST-low risk, and 175 (49.6%) were RESIST-high risk. RESIST-HCV criteria showed the highest area under the receiver operating characteristic curve (0.70, 95% confidence interval 0.65-0.75), correctly sparing the highest number of EGDS (54.3%), with the lowest false-positive rate (45.7%), compared with elastography-based criteria. Decision curve analysis showed that RESIST-HCV had higher clinical utility than elastography-based criteria., Discussion: Biochemical-based RESIST-HCV criteria are useful to easily predict HRV development after HCV eradication by DAAs in patients with compensated cirrhosis and low-risk EV., (Copyright © 2022 by The American College of Gastroenterology.)

Published
2022
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15. Metabolic comorbidities and male sex influence steatosis in chronic hepatitis C after viral eradication by direct-acting antiviral therapy (DAAs): Evaluation by the controlled attenuation parameter (CAP).

Author

Cespiati A, Petta S, Lombardi R, Di Marco V, Calvaruso V, Bertelli C, Pisano G, Fatta E, Sigon G, Iuculano F, Crapanzano L, Gibilaro G, Francione P, Craxì A, Fargion S, and Fracanzani AL

Subjects
Aged, Fatty Liver etiology, Female, Hepatitis C, Chronic complications, Humans, Italy, Male, Middle Aged, Retrospective Studies, Sustained Virologic Response, Antiviral Agents therapeutic use, Fatty Liver pathology, Hepatitis C, Chronic drug therapy
Abstract

Background: Chronic hepatitis C (CHC) is associated with hepatic steatosis, related to both a direct viral action and metabolic features. Vice-versa data on hepatic steatosis after viral eradication by direct-acting antiviral agents (DAA) are undefined although the presence of metabolic alterations could strongly influence the occurrence of steatosis as in NAFLD. The controlled attenuation parameter (CAP) (FibroscanⓇ) allows the qualitative and quantitative evaluation of fatty liver., Aim: to evaluate in patients with CHC whether hepatic steatosis diagnosed by CAP modifies after DAAs-induced sustained virologic response (SVR)., Methods: Data were collected the day of DAAs therapy starting and six months after SVR. CAP ≥ 248 dB/m defined the presence of steatosis., Results: 794 CHC SVR patients referring to 2 Italian Units were enrolled. Mean age was 64 ± 16 ys, 50% males, BMI 25.4 ± 4 kg/m 2 , genotype type-1 in 73%, type-3 in 8%. Prevalence of hepatic steatosis at baseline was 32% by US and 46% by CAP. De novo steatosis developed in 125 (29%), resolution in 122 (30%). At multivariate analysis de novo steatosis was independently associated with male sex (OR 1.7, CI 95% 1.09-2.67; p = 0.02) and baseline BMI (for unit increase OR 1.19, CI 95%1.11-1.29; p < 0.001). Baseline BMI (for unit increase OR 0.47, CI 95% 0.25-0.89; p = 0.02) and triglycerides (for unit increase OR 0.93, CI 95% 0.87-0.99; p = 0.03) prevented steatosis resolution after therapy., Conclusions: after SVR de novo steatosis and resolution of baseline steatosis are closely related to the presence of metabolic comorbidities., Competing Interests: Declaration of Competing Interest The Authors disclose no conflict of interests., (Copyright © 2020 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.)

Published
2021
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16. Rubberlike dynamics in sulphur above the lambda-transition temperature.

Author

Monaco G, Crapanzano L, Bellissent R, Crichton W, Fioretto D, Mezouar M, Scarponi F, and Verbeni R

Abstract

The high-frequency acoustic dynamics of sulfur across the liquid-liquid, lambda transition has been studied using inelastic x-ray scattering. The combination of these high-frequency data with lower frequency, literature data indicates that liquid sulfur develops, in the high-temperature, polymeric solution phase, some characteristic features of a rubber. In particular, entanglement coupling among polymeric chains plays a relevant role in the dynamics of this liquid phase.

Published
2005
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17. Alternating sequence of ring and chain structures in sulphur at high pressure and temperature.

Author

Crapanzano L, Crichton WA, Monaco G, Bellissent R, and Mezouar M

Subjects
Materials Testing, Molecular Conformation, Pressure, Temperature, X-Ray Diffraction, Crystallization methods, Sulfur analysis, Sulfur chemistry
Abstract

Sulphur is the subject of a renewed intensive research effort aiming at characterizing its complex phase diagram. Nonetheless, on reading recent literature on its high-pressure phases, a confused picture emerges where different techniques obtain different results. We have investigated the phase diagram of sulphur by X-ray diffraction at high pressures and temperatures (6-11 GPa and 300-1,000 K), and have observed a new occurrence of a molecular S6 phase, in addition to the previously described polymeric helical trigonal and tetragonal phases. The stability regime of the S6 phase has been defined through the observation of coexistence points with each of the polymeric phases and the trigonal-S6-tetragonal triple point. The existence of these high-pressure phases allows us to define a framework that reconciles the apparently contradictory results existing in the literature. Moreover, the classic idea that pressure induces polymerization in sulphur is refined by the direct observation of an alternating sequence of molecular and polymeric phases that we report here.

Published
2005
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18. Factors determining the percentage of hypochromic red blood cells in hemodialysis patients.

Author

Bovy C, Tsobo C, Crapanzano L, Rorive G, Beguin Y, Albert A, and Paulus JM

Subjects
Adult, Aged, Case-Control Studies, Erythrocyte Indices, Erythropoietin therapeutic use, Female, Ferritins blood, Hemoglobins metabolism, Humans, Iron administration & dosage, Iron blood, Male, Middle Aged, Recombinant Proteins, Reticulocyte Count, Erythrocytes metabolism, Iron Deficiencies, Renal Dialysis
Abstract

Unlabelled: Factors determining the percentage of hypochromic red blood cells determines iron status in hemodialysis patients., Background: Determination of the percentage of hypochromic red blood cells (RBC; %HYPO) has been advocated as a sensitive index of functional iron deficiency during erythropoietin (EPO) therapy in hemodialyzed patients., Methods: The significance of %HYPO in chronic renal failure was evaluated in 64 chronically hemodialyzed patients. The linear correlation was determined between %HYPO and 13 variables, including age, sex, weight, C-reactive protein (CRP), ferritin, transferrin (Tf), Tf saturation, soluble Tf receptor (sTfR), serum iron (SI), urea, parathormone, dialysis dose (Kt/V), dose of EPO administered (EPO), and absolute reticulocyte count. Multiple regression analyses were then performed to select the parameters that jointly provide the best prediction of %HYPO., Results: Univariate analysis showed significant correlations between %HYPO and iron parameters (sTfR, Tf saturation, SI, and ferritin, in decreasing order), EPO, reticulocyte count, and CRP. Multivariate analysis yielded an equation showing that the variation of %HYPO is essentially associated with the combined changes in sTfR, CRP, and EPO dosage., Conclusions: %HYPO is a meaningful and inexpensive parameter that reflects the integrated effects of iron stores, inflammation, and erythropoietic stimulation on iron availability in hemodialyzed patients. Among iron exchange parameters, sTfR is the best predictor of %HYPO, followed by Tf saturation, SI, and ferritin.

Published
1999
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