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Skowronski J, Boeltzig A, Ciani GF, Csedreki L, Piatti D, Aliotta M, Ananna C, Barile F, Bemmerer D, Best A, Broggini C, Bruno CG, Caciolli A, Campostrini M, Cavanna F, Colombetti P, Compagnucci A, Corvisiero P, Davinson T, Depalo R, Di Leva A, Elekes Z, Ferraro F, Formicola A, Fülöp Z, Gervino G, Gesuè RM, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Lugaro M, Marigo P, Masha E, Menegazzo R, Paticchio V, Perrino R, Prati P, Rapagnani D, Rigato V, Schiavulli L, Sidhu RS, Straniero O, Szücs T, Zavatarelli S. Proton-Capture Rates on Carbon Isotopes and Their Impact on the Astrophysical ^{12}C/^{13}C Ratio. Phys Rev Lett 2023; 131:162701. [PMID: 37925687 DOI: 10.1103/physrevlett.131.162701] [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] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/03/2023] [Accepted: 07/13/2023] [Indexed: 11/07/2023]
Abstract
The ^{12}C/^{13}C ratio is a significant indicator of nucleosynthesis and mixing processes during hydrogen burning in stars. Its value mainly depends on the relative rates of the ^{12}C(p,γ)^{13}N and ^{13}C(p,γ)^{14}N reactions. Both reactions have been studied at the Laboratory for Underground Nuclear Astrophysics (LUNA) in Italy down to the lowest energies to date (E_{c.m.}=60 keV) reaching for the first time the high energy tail of hydrogen burning in the shell of giant stars. Our cross sections, obtained with both prompt γ-ray detection and activation measurements, are the most precise to date with overall systematic uncertainties of 7%-8%. Compared with most of the literature, our results are systematically lower, by 25% for the ^{12}C(p,γ)^{13}N reaction and by 30% for ^{13}C(p,γ)^{14}N. We provide the most precise value up to now of 3.6±0.4 in the 20-140 MK range for the lowest possible ^{12}C/^{13}C ratio that can be produced during H burning in giant stars.
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Affiliation(s)
- J Skowronski
- Dipartimento di Fisica, Università degli Studi di Padova, 35131 Padova, Italy
- INFN, Sezione di Padova, 35131 Padova, Italy
| | - A Boeltzig
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
| | - G F Ciani
- Dipartimento di Fisica "M. Merlin," Università degli Studi di Bari "A. Moro," 70125 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - L Csedreki
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
| | - D Piatti
- Dipartimento di Fisica, Università degli Studi di Padova, 35131 Padova, Italy
- INFN, Sezione di Padova, 35131 Padova, Italy
| | - M Aliotta
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - C Ananna
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
- INFN, Sezione di Napoli, 80125 Naples, Italy
| | - F Barile
- Dipartimento di Fisica "M. Merlin," Università degli Studi di Bari "A. Moro," 70125 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - A Best
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
- INFN, Sezione di Napoli, 80125 Naples, Italy
| | - C Broggini
- INFN, Sezione di Padova, 35131 Padova, Italy
| | - C G Bruno
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Caciolli
- Dipartimento di Fisica, Università degli Studi di Padova, 35131 Padova, Italy
- INFN, Sezione di Padova, 35131 Padova, Italy
| | - M Campostrini
- Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy
| | - F Cavanna
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - P Colombetti
- INFN, Sezione di Torino, 10125 Torino, Italy
- Dipartimento di Fisica, Università degli Studi di Torino, 10125 Torino, Italy
| | - A Compagnucci
- INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
- Gran Sasso Science Institute, 67100 L'Aquila, Italy
| | - P Corvisiero
- Università degli Studi di Genova, 16146 Genova, Italy
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - T Davinson
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - R Depalo
- Università degli Studi di Milano, 20133 Milano, Italy
- INFN, Sezione di Milano, 20133 Milano, Italy
| | - A Di Leva
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
- INFN, Sezione di Napoli, 80125 Naples, Italy
| | - Z Elekes
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
| | - F Ferraro
- INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
- Università degli Studi di Milano, 20133 Milano, Italy
| | | | - Zs Fülöp
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
| | - G Gervino
- INFN, Sezione di Torino, 10125 Torino, Italy
- Dipartimento di Fisica, Università degli Studi di Torino, 10125 Torino, Italy
| | - R M Gesuè
- INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
- Gran Sasso Science Institute, 67100 L'Aquila, Italy
| | - A Guglielmetti
- Università degli Studi di Milano, 20133 Milano, Italy
- INFN, Sezione di Milano, 20133 Milano, Italy
| | | | - Gy Gyürky
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
| | - G Imbriani
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
- INFN, Sezione di Napoli, 80125 Naples, Italy
| | - M Junker
- INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi, Italy
| | - M Lugaro
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences (CSFK), MTA Centre for Excellence, 1121 Budapest, Hungary
- ELTE Eötvös Loránd University, Institute of Physics, 1117 Budapest, Hungary
| | - P Marigo
- Dipartimento di Fisica, Università degli Studi di Padova, 35131 Padova, Italy
- INFN, Sezione di Padova, 35131 Padova, Italy
| | - E Masha
- Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- Università degli Studi di Milano, 20133 Milano, Italy
| | - R Menegazzo
- INFN, Sezione di Padova, 35131 Padova, Italy
| | | | - R Perrino
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - P Prati
- Università degli Studi di Genova, 16146 Genova, Italy
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - D Rapagnani
- Dipartimento di Fisica "E. Pancini," Università degli Studi di Napoli "Federico II," 80125 Naples, Italy
- INFN, Sezione di Napoli, 80125 Naples, Italy
| | - V Rigato
- Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy
| | - L Schiavulli
- Dipartimento di Fisica "M. Merlin," Università degli Studi di Bari "A. Moro," 70125 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - R S Sidhu
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - O Straniero
- INFN, Sezione di Roma, 00185 Roma, Italy
- INAF-Osservatorio Astronomico d'Abruzzo, 64100, Teramo, Italy
| | - T Szücs
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary
| | - S Zavatarelli
- Università degli Studi di Genova, 16146 Genova, Italy
- INFN, Sezione di Genova, 16146 Genova, Italy
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Aragón-Caqueo D, Aedo G, Suárez J, Toloza C, Guglielmetti A. Impact of the COVID-19 Pandemic on Dermatology Care in the Chilean Public Health Sector. Healthcare (Basel) 2023; 11:healthcare11050633. [PMID: 36900640 PMCID: PMC10000557 DOI: 10.3390/healthcare11050633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 02/16/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
Due to the Coronavirus-19 (COVID-19) pandemic, most resources of the public health system were allocated to the increasing demand from respiratory patients. From this, it is expected that specialty consultations would decrease drastically. Access to dermatology care in the Chilean public health has been historically limited. To evaluate the impact of the pandemic on dermatology care, the total number of dermatological consultations (DCs) to the Chilean public sector in 2020 is analyzed according to sex and age range and compared with the available databases from 2017 to 2019. From this, 120,095 DCs were performed during 2020, with an incidence of 6.3 consultations per 1000 inhabitants. When compared to 2019 (n = 250,649), there was a 52.1% decrease. The regions most affected were located in the central part of Chile, which correlates with the regions most affected by the pandemic. Age and sex distributions remained similar to previous years but lower in amplitude. The month with the lowest number of consultations was April, with a gradual increase observed thereafter until December 2020. Although DCs decreased drastically in the Chilean public sector during 2020, sex and age range proportions were conserved, thus affecting all groups in a similar manner.
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Affiliation(s)
- Diego Aragón-Caqueo
- Escuela de Medicina, Universidad de Tarapacá, Arica 1000000, Chile
- Correspondence: ; Tel.: +56-58-2205100
| | - Gabriel Aedo
- Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago 8320000, Chile
| | - Javier Suárez
- Escuela de Medicina, Universidad de Valaparaíso, Viña del Mar 2520000, Chile
| | - Claudio Toloza
- Escuela de Medicina, Universidad de Valaparaíso, Viña del Mar 2520000, Chile
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Valenzuela F, De La Cruz C, Lecaros C, Fernández J, Hevia G, Maul LV, Thyssen JP, Vera‐Kellet C, Egeberg A, Armijo D, Pizarro C, Riveros T, Correa H, Guglielmetti A, Didaskalu J, Wu JJ, Griffiths CE, Romiti R, Maul J. Comorbidities in Chilean Psoriasis Patients ‐ a Global Healthcare Study on Psoriasis. Clin Exp Dermatol 2022; 47:2234-2241. [PMID: 35988043 PMCID: PMC10092698 DOI: 10.1111/ced.15384] [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] [Accepted: 08/19/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Psoriasis is a chronic inflammatory skin disease associated with several important medical comorbidities. There are scant data available on the comorbidities of patients with psoriasis in South America. AIM To examine the comorbidity profile of adult patients with psoriasis in Chile and its association with severity of psoriasis. METHODS This was a multicentre, cross-sectional study involving 16 hospitals and clinics in Chile, which used a 48-item questionnaire to study clinician- and patient-reported outcomes and comorbidities. Inferential analyses were performed by psoriasis severity, using Fisher exact test, Student t-test and multivariable logistic regression. RESULTS In total, 598 adult patients with psoriasis were included (51.1% male; mean age 49.2 ± 15.1 years); 48.5% mild and 51.4% moderate to severe; Psoriasis Area and Severity Index 11.6 ± 11.5; body surface area 14.7 ± 18.2%. Plaque psoriasis was the most common phenotype (90.2%), followed by guttate (13.4%). Psoriatic arthritis occurred in 27.3% of patients. Comorbidities were reported in 60.2% of all patients with psoriasis. Frequent concomitant diseases were obesity (25.3%), hypertension (24.3%), Type 2 diabetes mellitus (T2DM) (18.7%), dyslipidaemia (17.4%), metabolic syndrome (16.7%) and depression (14.4%). After adjustment, significant associations were found between moderate to severe psoriasis and obesity, T2DM and nonalcoholic fatty liver disease (NAFLD) compared with mild psoriasis. CONCLUSIONS We report a large study of comorbidities, including depression, dyslipidaemia, T2DM and NAFLD, in people with psoriasis in Chile. The prevalence of comorbidities with psoriasis in Chile appears similar to that found in Western countries, and emphasizes the importance of assessing patients with psoriasis for risk factors for and presence of, comorbid disease in a multidisciplinary setting.
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Affiliation(s)
- Fernando Valenzuela
- Department of Dermatology University of Chile Santiago Chile
- Centro Internacional de Estudios Clínicos, Probity Medical Research Santiago Chile
| | | | - Cristóbal Lecaros
- Department of Dermatology, Clínica Alemana, Universidad del Desarrollo Santiago Chile
| | - Javier Fernández
- Centro Internacional de Estudios Clínicos, Probity Medical Research Santiago Chile
| | - Gonzalo Hevia
- Department of Dermatology, Clínica Alemana, Universidad del Desarrollo Santiago Chile
| | - Lara Valeska Maul
- Department of Dermatology University Hospital Basel Basel Switzerland
| | - Jacob P. Thyssen
- Department of Dermatology, Bispebjerg Hospital Copenhagen Denmark
- University of Copenhagen Denmark
| | - Cristián Vera‐Kellet
- Department of Dermatology; Facultad de Medicina, Pontificia Universidad Católica de Chile Santiago Chile
| | - Alexander Egeberg
- Department of Dermatology, Bispebjerg Hospital Copenhagen Denmark
- University of Copenhagen Denmark
| | | | | | - Tatiana Riveros
- Department of Dermatology, Clínica Alemana, Universidad del Desarrollo Santiago Chile
| | - Hernán Correa
- Centro Dermatológico DERMAMED Santiago Chile
- Department of Dermatology, Hospital Dr. Sótero del Río Santiago Chile
| | | | | | - Jashin J. Wu
- Department of Dermatology University of Miami Miller School of Medicine
| | - Christopher E.M. Griffiths
- Dermatology Centre, Salford Royal Hospital, NIHR Manchester Biomedical Research Centre University of Manchester Manchester UK
- School of Health Sciences, Faculty of Biology, Medicine and Health University of Manchester UK
| | - Ricardo Romiti
- Department of Dermatology University of São Paulo School of Medicine São Paulo Brazil
| | - Julia‐Tatjana Maul
- Faculty of Medicine University of Zurich Zurich Switzerland
- Department of Dermatology University Hospital Zurich Zurich Switzerland
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4
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Ciani GF, Csedreki L, Rapagnani D, Aliotta M, Balibrea-Correa J, Barile F, Bemmerer D, Best A, Boeltzig A, Broggini C, Bruno CG, Caciolli A, Cavanna F, Chillery T, Colombetti P, Corvisiero P, Cristallo S, Davinson T, Depalo R, Di Leva A, Elekes Z, Ferraro F, Fiore E, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Lugaro M, Marigo P, Masha E, Menegazzo R, Mossa V, Pantaleo FR, Paticchio V, Perrino R, Piatti D, Prati P, Schiavulli L, Stöckel K, Straniero O, Szücs T, Takács MP, Terrasi F, Vescovi D, Zavatarelli S. Direct Measurement of the ^{13}C(α,n)^{16}O Cross Section into the s-Process Gamow Peak. Phys Rev Lett 2021; 127:152701. [PMID: 34677992 DOI: 10.1103/physrevlett.127.152701] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/08/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
One of the main neutron sources for the astrophysical s process is the reaction ^{13}C(α,n)^{16}O, taking place in thermally pulsing asymptotic giant branch stars at temperatures around 90 MK. To model the nucleosynthesis during this process the reaction cross section needs to be known in the 150-230 keV energy window (Gamow peak). At these sub-Coulomb energies, cross section direct measurements are severely affected by the low event rate, making us rely on input from indirect methods and extrapolations from higher-energy direct data. This leads to an uncertainty in the cross section at the relevant energies too high to reliably constrain the nuclear physics input to s-process calculations. We present the results from a new deep-underground measurement of ^{13}C(α,n)^{16}O, covering the energy range 230-300 keV, with drastically reduced uncertainties over previous measurements and for the first time providing data directly inside the s-process Gamow peak. Selected stellar models have been computed to estimate the impact of our revised reaction rate. For stars of nearly solar composition, we find sizeable variations of some isotopes, whose production is influenced by the activation of close-by branching points that are sensitive to the neutron density, in particular, the two radioactive nuclei ^{60}Fe and ^{205}Pb, as well as ^{152}Gd.
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Affiliation(s)
- G F Ciani
- Gran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, Italy
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - L Csedreki
- Gran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, Italy
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - D Rapagnani
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - M Aliotta
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - J Balibrea-Correa
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - F Barile
- Università degli Studi di Bari, 70121 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - A Best
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - A Boeltzig
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - C Broggini
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - C G Bruno
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Caciolli
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - F Cavanna
- INFN, Sezione di Torino, Via Pietro Giuria, 1, 10125 Torino, Italy
| | - T Chillery
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - P Colombetti
- INFN, Sezione di Torino, Via Pietro Giuria, 1, 10125 Torino, Italy
| | - P Corvisiero
- Università degli Studi di Genova, 16126 Genova, Italy
- INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - S Cristallo
- INAF, Osservatorio Astronomico d'Abruzzo, 64100 Teramo, Italy
- INFN, Sezione of Perugia, Via A. Pascoli snc, 06123 Perugia, Italy
| | - T Davinson
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - R Depalo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - A Di Leva
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - Z Elekes
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - F Ferraro
- Università degli Studi di Genova, 16126 Genova, Italy
- INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - E Fiore
- Università degli Studi di Bari, 70121 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - A Formicola
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
| | - Zs Fülöp
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - G Gervino
- Università degli Studi di Torino, 10125 Torino, Italy
- INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - A Guglielmetti
- Università degli Studi di Milano, 20133 Milano, Italy
- INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - C Gustavino
- INFN, Sezione di Roma La Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | - Gy Gyürky
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - G Imbriani
- Università di Napoli "Federico II," 80126 Napoli, Italy
- INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - M Junker
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
| | - M Lugaro
- Institute of Physics, ELTE Eötvös Loránd University, 1053 Budapest, Hungary
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, 1121 Budapest, Hungary
| | - P Marigo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - E Masha
- Università degli Studi di Milano, 20133 Milano, Italy
- INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - R Menegazzo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - V Mossa
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - F R Pantaleo
- Università degli Studi di Bari, 70121 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | | | - R Perrino
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - D Piatti
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - P Prati
- Università degli Studi di Genova, 16126 Genova, Italy
- INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - L Schiavulli
- Università degli Studi di Bari, 70121 Bari, Italy
- INFN, Sezione di Bari, 70125 Bari, Italy
| | - K Stöckel
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - O Straniero
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
- INAF, Osservatorio Astronomico d'Abruzzo, 64100 Teramo, Italy
| | - T Szücs
- Institute for Nuclear Research (ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - M P Takács
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - F Terrasi
- INFN, Sezione di Napoli, 80126 Napoli, Italy
- Università degli Studi della Campania "L. Vanvitelli" (Caserta), 81100 Caserta, Italy
| | - D Vescovi
- INFN, Sezione of Perugia, Via A. Pascoli snc, 06123 Perugia, Italy
- Goethe University, Max-von-Laue-Strasse 1, Frankfurt am Main 60438, Germany
| | - S Zavatarelli
- INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
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5
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Mossa V, Stöckel K, Cavanna F, Ferraro F, Aliotta M, Barile F, Bemmerer D, Best A, Boeltzig A, Broggini C, Bruno CG, Caciolli A, Chillery T, Ciani GF, Corvisiero P, Csedreki L, Davinson T, Depalo R, Di Leva A, Elekes Z, Fiore EM, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Kievsky A, Kochanek I, Lugaro M, Marcucci LE, Mangano G, Marigo P, Masha E, Menegazzo R, Pantaleo FR, Paticchio V, Perrino R, Piatti D, Pisanti O, Prati P, Schiavulli L, Straniero O, Szücs T, Takács MP, Trezzi D, Viviani M, Zavatarelli S. The baryon density of the Universe from an improved rate of deuterium burning. Nature 2020; 587:210-213. [PMID: 33177669 DOI: 10.1038/s41586-020-2878-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/16/2020] [Indexed: 11/09/2022]
Abstract
Light elements were produced in the first few minutes of the Universe through a sequence of nuclear reactions known as Big Bang nucleosynthesis (BBN)1,2. Among the light elements produced during BBN1,2, deuterium is an excellent indicator of cosmological parameters because its abundance is highly sensitive to the primordial baryon density and also depends on the number of neutrino species permeating the early Universe. Although astronomical observations of primordial deuterium abundance have reached percent accuracy3, theoretical predictions4-6 based on BBN are hampered by large uncertainties on the cross-section of the deuterium burning D(p,γ)3He reaction. Here we show that our improved cross-sections of this reaction lead to BBN estimates of the baryon density at the 1.6 percent level, in excellent agreement with a recent analysis of the cosmic microwave background7. Improved cross-section data were obtained by exploiting the negligible cosmic-ray background deep underground at the Laboratory for Underground Nuclear Astrophysics (LUNA) of the Laboratori Nazionali del Gran Sasso (Italy)8,9. We bombarded a high-purity deuterium gas target10 with an intense proton beam from the LUNA 400-kilovolt accelerator11 and detected the γ-rays from the nuclear reaction under study with a high-purity germanium detector. Our experimental results settle the most uncertain nuclear physics input to BBN calculations and substantially improve the reliability of using primordial abundances to probe the physics of the early Universe.
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Affiliation(s)
- V Mossa
- INFN, Sezione di Bari, Bari, Italy
| | - K Stöckel
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,Technische Universität Dresden, Dresden, Germany
| | - F Cavanna
- INFN, Sezione di Genova, Genoa, Italy.,INFN, Sezione di Torino, Turin, Italy
| | - F Ferraro
- INFN, Sezione di Genova, Genoa, Italy.,Università degli Studi di Genova, Genoa, Italy
| | - M Aliotta
- School of Physics and Astronomy, SUPA, University of Edinburgh, Edinburgh, UK
| | - F Barile
- INFN, Sezione di Bari, Bari, Italy
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - A Best
- Università degli Studi di Napoli "Federico II", Naples, Italy.,INFN, Sezione di Napoli, Naples, Italy
| | - A Boeltzig
- Gran Sasso Science Institute, L'Aquila, Italy.,INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | | | - C G Bruno
- School of Physics and Astronomy, SUPA, University of Edinburgh, Edinburgh, UK
| | - A Caciolli
- INFN, Sezione di Padova, Padua, Italy.,Università degli Studi di Padova, Padua, Italy
| | - T Chillery
- School of Physics and Astronomy, SUPA, University of Edinburgh, Edinburgh, UK
| | - G F Ciani
- Gran Sasso Science Institute, L'Aquila, Italy.,INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | - P Corvisiero
- INFN, Sezione di Genova, Genoa, Italy.,Università degli Studi di Genova, Genoa, Italy
| | - L Csedreki
- Gran Sasso Science Institute, L'Aquila, Italy.,INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | - T Davinson
- School of Physics and Astronomy, SUPA, University of Edinburgh, Edinburgh, UK
| | - R Depalo
- INFN, Sezione di Padova, Padua, Italy
| | - A Di Leva
- Università degli Studi di Napoli "Federico II", Naples, Italy.,INFN, Sezione di Napoli, Naples, Italy
| | - Z Elekes
- Institute for Nuclear Research (Atomki), Debrecen, Hungary
| | - E M Fiore
- INFN, Sezione di Bari, Bari, Italy.,Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Bari, Italy
| | - A Formicola
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | - Zs Fülöp
- Institute for Nuclear Research (Atomki), Debrecen, Hungary
| | - G Gervino
- Università degli Studi di Torino, Turin, Italy.,INFN, Sezione di Torino, Turin, Italy
| | - A Guglielmetti
- Università degli Studi di Milano, Milan, Italy.,INFN, Sezione di Milano, Milan, Italy
| | | | - G Gyürky
- Institute for Nuclear Research (Atomki), Debrecen, Hungary
| | - G Imbriani
- Università degli Studi di Napoli "Federico II", Naples, Italy.,INFN, Sezione di Napoli, Naples, Italy
| | - M Junker
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | | | - I Kochanek
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy
| | - M Lugaro
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, Budapest, Hungary.,Institute of Physics, ELTE Eötvös Loránd University, Budapest, Hungary
| | - L E Marcucci
- INFN, Sezione di Pisa, Pisa, Italy.,Dipartimento di Fisica "E. Fermi", Università degli Studi di Pisa, Pisa, Italy
| | - G Mangano
- Università degli Studi di Napoli "Federico II", Naples, Italy.,INFN, Sezione di Napoli, Naples, Italy
| | - P Marigo
- INFN, Sezione di Padova, Padua, Italy.,Università degli Studi di Padova, Padua, Italy
| | - E Masha
- Università degli Studi di Milano, Milan, Italy.,INFN, Sezione di Milano, Milan, Italy
| | | | - F R Pantaleo
- INFN, Sezione di Bari, Bari, Italy.,Dipartimento Interateneo di Fisica, Politecnico di Bari, Bari, Italy
| | | | - R Perrino
- INFN, Sezione di Bari, Bari, Italy.,INFN, Sezione di Lecce, Lecce, Italy
| | - D Piatti
- INFN, Sezione di Padova, Padua, Italy
| | - O Pisanti
- Università degli Studi di Napoli "Federico II", Naples, Italy.,INFN, Sezione di Napoli, Naples, Italy
| | - P Prati
- INFN, Sezione di Genova, Genoa, Italy.,Università degli Studi di Genova, Genoa, Italy
| | - L Schiavulli
- INFN, Sezione di Bari, Bari, Italy.,Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Bari, Italy
| | - O Straniero
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), Assergi, Italy.,INAF Osservatorio Astronomico d'Abruzzo, Teramo, Italy
| | - T Szücs
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - M P Takács
- Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,Technische Universität Dresden, Dresden, Germany
| | - D Trezzi
- Università degli Studi di Milano, Milan, Italy.,INFN, Sezione di Milano, Milan, Italy
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6
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Guglielmetti A, Jahr C, Gompertz-Mattar M. Autologous fibroblasts for the treatment of cutaneous loxoscelism: First experience. Int Wound J 2019; 16:1503-1505. [PMID: 31531944 DOI: 10.1111/iwj.13222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/27/2019] [Accepted: 08/30/2019] [Indexed: 10/26/2022] Open
Abstract
Several treatments have been described for cutaneous loxoscelism (CL), but the quality of available evidence is insufficient for the elaboration of a therapeutic consensus. Dapsone has shown beneficial effects on stopping the inflammatory phenomenon and accelerating the recovery. It is recommended to start dapsone once the visceral involvement is ruled out if glucose-6-phosphate dehydrogenase levels are normal. Autologous fibroblast (AF) therapy is a novel therapy that has been successfully used in bioengineering as skin substitutes for surgical wounds and burns, diabetic and pressure ulcers, and other aesthetic purposes. Interestingly, there are no reports of AFs in CL. We present a case of CL in which the necrotic process was stabilised with dapsone, but the healing of the ulcer was not achieved. Three weekly applications of AFs 100 000/cm2 were performed on a biocompatible polymer matrix, with optimal response within 2 months. This represents the first report of AFs in CL, setting the stage for future studies.
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Affiliation(s)
| | - Catalina Jahr
- Department of Dermatology, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Matías Gompertz-Mattar
- Department of Dermatology, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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7
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Ferraro F, Takács MP, Piatti D, Cavanna F, Depalo R, Aliotta M, Bemmerer D, Best A, Boeltzig A, Broggini C, Bruno CG, Caciolli A, Chillery T, Ciani GF, Corvisiero P, Davinson T, D'Erasmo G, Di Leva A, Elekes Z, Fiore EM, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Karakas A, Kochanek I, Lugaro M, Marigo P, Menegazzo R, Mossa V, Pantaleo FR, Paticchio V, Perrino R, Prati P, Schiavulli L, Stöckel K, Straniero O, Szücs T, Trezzi D, Zavatarelli S. Direct Capture Cross Section and the E_{p}=71 and 105 keV Resonances in the ^{22}Ne(p,γ)^{23}Na Reaction. Phys Rev Lett 2018; 121:172701. [PMID: 30411966 DOI: 10.1103/physrevlett.121.172701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/10/2018] [Indexed: 06/08/2023]
Abstract
The ^{22}Ne(p,γ)^{23}Na reaction, part of the neon-sodium cycle of hydrogen burning, may explain the observed anticorrelation between sodium and oxygen abundances in globular cluster stars. Its rate is controlled by a number of low-energy resonances and a slowly varying nonresonant component. Three new resonances at E_{p}=156.2, 189.5, and 259.7 keV have recently been observed and confirmed. However, significant uncertainty on the reaction rate remains due to the nonresonant process and to two suggested resonances at E_{p}=71 and 105 keV. Here, new ^{22}Ne(p,γ)^{23}Na data with high statistics and low background are reported. Stringent upper limits of 6×10^{-11} and 7×10^{-11} eV (90% confidence level), respectively, are placed on the two suggested resonances. In addition, the off-resonant S factor has been measured at unprecedented low energy, constraining the contributions from a subthreshold resonance and the direct capture process. As a result, at a temperature of 0.1 GK the error bar of the ^{22}Ne(p,γ)^{23}Na rate is now reduced by 3 orders of magnitude.
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Affiliation(s)
- F Ferraro
- Università degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - M P Takács
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - D Piatti
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - F Cavanna
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - R Depalo
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - M Aliotta
- School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
| | - A Best
- Università degli Studi di Napoli "Federico II", Dipartimento di Fisica "E. Pancini", Via Cintia, 80126 Napoli, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia, 80126 Napoli, Italy
| | - A Boeltzig
- Gran Sasso Science Institute, 67100 L'Aquila, Italy
| | - C Broggini
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - C G Bruno
- School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Caciolli
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - T Chillery
- School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - G F Ciani
- Gran Sasso Science Institute, 67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - P Corvisiero
- Università degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - T Davinson
- School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - G D'Erasmo
- Università degli Studi di Bari, 70125 Bari, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - A Di Leva
- Università degli Studi di Napoli "Federico II", Dipartimento di Fisica "E. Pancini", Via Cintia, 80126 Napoli, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia, 80126 Napoli, Italy
| | - Z Elekes
- Institute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, H-4001 Debrecen, Hungary
| | - E M Fiore
- Università degli Studi di Bari, 70125 Bari, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - A Formicola
- Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - Zs Fülöp
- Institute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, H-4001 Debrecen, Hungary
| | - G Gervino
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
- Università degli Studi di Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - A Guglielmetti
- Università degli Studi di Milano, Via G. Celoria 16, 20133 Milano, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - C Gustavino
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma La Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | - Gy Gyürky
- Institute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, H-4001 Debrecen, Hungary
| | - G Imbriani
- Università degli Studi di Napoli "Federico II", Dipartimento di Fisica "E. Pancini", Via Cintia, 80126 Napoli, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia, 80126 Napoli, Italy
| | - M Junker
- Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - A Karakas
- Monash Centre for Astrophysics, School of Physics & Astronomy, Monash University, VIC 3800, Australia
| | - I Kochanek
- Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - M Lugaro
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, 1121 Budapest, Hungary
| | - P Marigo
- Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - R Menegazzo
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - V Mossa
- Università degli Studi di Bari, 70125 Bari, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - F R Pantaleo
- Università degli Studi di Bari, 70125 Bari, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - V Paticchio
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - R Perrino
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - P Prati
- Università degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - L Schiavulli
- Università degli Studi di Bari, 70125 Bari, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, 70125 Bari, Italy
| | - K Stöckel
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - O Straniero
- Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia, 80126 Napoli, Italy
- Osservatorio Astronomico di Collurania, 64100 Teramo, Italy
| | - T Szücs
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
- Institute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, H-4001 Debrecen, Hungary
| | - D Trezzi
- Università degli Studi di Milano, Via G. Celoria 16, 20133 Milano, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - S Zavatarelli
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
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Cavanna F, Depalo R, Aliotta M, Anders M, Bemmerer D, Best A, Boeltzig A, Broggini C, Bruno CG, Caciolli A, Corvisiero P, Davinson T, di Leva A, Elekes Z, Ferraro F, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Menegazzo R, Mossa V, Pantaleo FR, Prati P, Scott DA, Somorjai E, Straniero O, Strieder F, Szücs T, Takács MP, Trezzi D. Erratum: Three New Low-Energy Resonances in the ^{22}Ne(p,γ)^{23}Na Reaction [Phys. Rev. Lett. 115, 252501 (2015)]. Phys Rev Lett 2018; 120:239901. [PMID: 29932705 DOI: 10.1103/physrevlett.120.239901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Indexed: 06/08/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.115.252501.
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9
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Guglielmetti A, Gompertz M, Jahr C, Silva T, González S. Remission of refractory metastatic Crohn's disease achieved with dapsone. Int J Dermatol 2018; 57:467-469. [PMID: 29318573 DOI: 10.1111/ijd.13885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/29/2017] [Accepted: 11/29/2017] [Indexed: 12/01/2022]
Affiliation(s)
| | - Matías Gompertz
- Department of Dermatology, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catalina Jahr
- Department of Dermatology, University of Valparaíso, Valparaíso, Chile
| | - Tomas Silva
- Department of Dermatology, University of Valparaíso, Valparaíso, Chile
| | - Sergio González
- Department of Pathology, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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10
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Strano E, Mazzocco M, Boiano A, Boiano C, La Commara M, Manea C, Parascandolo C, Pierroutsakou D, Signorini C, Torresi D, Yamaguchi H, Kahl D, Acosta L, Di Meo P, Fernandez-Garcia J, Glodariu T, Grebosz J, Guglielmetti A, Imai N, Hirayama Y, Ishiyama H, Iwasa N, Jeong S, Jia H, Keeley N, Kim Y, Kimura S, Kubono S, Lay J, Lin C, Marquinez-Duran G, Marte I, Miyatake H, Mukai M, Nakao T, Nicoletto M, Pakou A, Rusek K, Sakaguchi Y, Sanchez-Benitez A, Sava T, Sgouros O, Stefanini C, Soramel F, Soukeras V, Stiliaris E, Stroe L, Teranishi T, Toniolo N, Wakabayashi Y, Watanabe Y, Yang L, Yang Y. 7Be and 8B reaction dynamics at Coulomb barrier energies. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818402015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We investigated the reaction dynamics induced by the 7Be,8B+208Pb collisions at energies around the Coulomb barrier. Charged particles originated by both the col- lisions were detected by means of 6 ΔE-Eres telescopes of a newly developed detector array. Experimental data were analysed within the framework of the Optical Model and the total reaction cross-sections were compared together and with the 6,7Li+208Pb colli-sion data. According to the preliminary results, 7Be nucleus reactivity is rather similar to the 7Li one whereas the 8B+208Pb total reaction cross section appears to be much larger than those measured for reactions induced by the other weakly-bound projectiles on the same target.
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11
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Fischer-Levancini C, Gompertz M, Guglielmetti A, Opazo H. Alopecic and Aseptic Nodules of the Scalp: First Report in South America and Second in America. Skin Appendage Disord 2017; 4:78-81. [PMID: 29765963 DOI: 10.1159/000479166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 07/03/2017] [Indexed: 11/19/2022] Open
Abstract
Alopecic and aseptic nodules of the scalp, also named pseudocysts of the scalp, are a relatively new, little-known, and for sure underdiagnosed disease. It affects mostly young men and is characterized by a solitary or a few dome-shaped nodules accompanied by nonscarring alopecia, deep inflammatory infiltration in the skin biopsy specimen, and, in most cases, granulomas. It has a good response to doxycycline, intralesional corticosteroids, or drainage/aspiration of the lesion. We present a case report and a summary of the published cases.
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Affiliation(s)
| | - Matías Gompertz
- Department of Dermatology, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Héctor Opazo
- Department of Pathology, University of Valparaíso, Valparaíso, Chile
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12
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Parascandolo C, Pierroutsakou D, Alba R, Del Zoppo A, Maiolino C, Santonocito D, Agodi C, Baran V, Boiano A, Colonna M, Coniglione R, De Filippo E, Di Toro M, Emanuele U, Farinon F, Guglielmetti A, La Commara M, Martin B, Mazzocchi C, Mazzocco M, Rizzo C, Romoli M, Signorini C, Silvestri R, Soramel F, Strano E, Torresi D, Trifirò A, Trimarchi M. Dynamical Dipole mode in heavy-ion fusion reactions. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201716300043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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13
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Mazzocco M, Boiano A, Boiano C, Commara ML, Manea C, Parascandolo C, Pierroutsakou D, Strano E, Torresi D, Acosta L, Meo PD, Fernandez-Garcia J, Glodariu T, Grebosz J, Guglielmetti A, Marquinez-Duran G, Martel I, Nicoletto M, Pakou A, Sánchez-Benítez A, Sava T, Sgouros O, Signorini C, Soramel F, Soukeras V, Stroe L. Reaction dynamics studies for the system 7Be + 208Pb at Coulomb barrier energies. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201716300035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Bruno CG, Scott DA, Aliotta M, Formicola A, Best A, Boeltzig A, Bemmerer D, Broggini C, Caciolli A, Cavanna F, Ciani GF, Corvisiero P, Davinson T, Depalo R, Di Leva A, Elekes Z, Ferraro F, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Menegazzo R, Mossa V, Pantaleo FR, Piatti D, Prati P, Somorjai E, Straniero O, Strieder F, Szücs T, Takács MP, Trezzi D. Improved Direct Measurement of the 64.5 keV Resonance Strength in the ^{17}O(p,α)^{14}N Reaction at LUNA. Phys Rev Lett 2016; 117:142502. [PMID: 27740778 DOI: 10.1103/physrevlett.117.142502] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Indexed: 06/06/2023]
Abstract
The ^{17}O(p,α)^{14}N reaction plays a key role in various astrophysical scenarios, from asymptotic giant branch stars to classical novae. It affects the synthesis of rare isotopes such as ^{17}O and ^{18}F, which can provide constraints on astrophysical models. A new direct determination of the E_{R}=64.5 keV resonance strength performed at the Laboratory for Underground Nuclear Astrophysics (LUNA) accelerator has led to the most accurate value to date ωγ=10.0±1.4_{stat}±0.7_{syst} neV, thanks to a significant background reduction underground and generally improved experimental conditions. The (bare) proton partial width of the corresponding state at E_{x}=5672 keV in ^{18}F is Γ_{p}=35±5_{stat}±3_{syst} neV. This width is about a factor of 2 higher than previously estimated, thus leading to a factor of 2 increase in the ^{17}O(p, α)^{14}N reaction rate at astrophysical temperatures relevant to shell hydrogen burning in red giant and asymptotic giant branch stars. The new rate implies lower ^{17}O/^{16}O ratios, with important implications on the interpretation of astrophysical observables from these stars.
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Affiliation(s)
- C G Bruno
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - D A Scott
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - M Aliotta
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Formicola
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
| | - A Best
- Università di Napoli "Federico II" and INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - A Boeltzig
- Gran Sasso Science Institute, INFN, Viale F. Crispi 7, 67100 L'Aquila, Italy
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - C Broggini
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - A Caciolli
- Università degli Studi di Padova and INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - F Cavanna
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - G F Ciani
- Gran Sasso Science Institute, INFN, Viale F. Crispi 7, 67100 L'Aquila, Italy
| | - P Corvisiero
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - T Davinson
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - R Depalo
- Università degli Studi di Padova and INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - A Di Leva
- Università di Napoli "Federico II" and INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - Z Elekes
- Institute for Nuclear Research (MTA ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - F Ferraro
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - Zs Fülöp
- Institute for Nuclear Research (MTA ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - G Gervino
- Università degli Studi di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - A Guglielmetti
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - C Gustavino
- INFN, Sezione di Roma La Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | - Gy Gyürky
- Institute for Nuclear Research (MTA ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - G Imbriani
- Università di Napoli "Federico II" and INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - M Junker
- INFN, Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi, Italy
| | - R Menegazzo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - V Mossa
- Università degli Studi di Bari e INFN, Sezione di Bari, 70125 Bari, Italy
| | - F R Pantaleo
- Università degli Studi di Bari e INFN, Sezione di Bari, 70125 Bari, Italy
| | - D Piatti
- Università degli Studi di Padova and INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - P Prati
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - E Somorjai
- Institute for Nuclear Research (MTA ATOMKI), P.O. Box 51, HU-4001 Debrecen, Hungary
| | - O Straniero
- Osservatorio Astronomico di Collurania, Teramo, INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - F Strieder
- South Dakota School of Mines, 501 E. Saint Joseph Street, South Dakota 57701, USA
| | - T Szücs
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - M P Takács
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - D Trezzi
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
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Mazzocco M, Boiano A, Boiano C, La Commara M, Manea C, Parascandolo C, Pierroutsakou D, Signorini C, Strano E, Torresi D, Yamaguchi H, Kahl D, Acosta L, Di Meo P, Fernandez-Garcia J, Glodariu T, Grebosz J, Guglielmetti A, Imai N, Hirayama Y, Ishiyama H, Iwasa N, Jeong S, Jia H, Keeley N, Kim Y, Kimura S, Kubono S, Lay J, Lin C, Marquinez-Duran G, Martel I, Miyatake H, Mukai M, Nakao T, Nicoletto M, Pakou A, Rusek K, Sakaguchi Y, Sánchez-Benítez A, Sava T, Sgouros O, Stefanini C, Soramel F, Soukeras V, Stiliaris E, Stroe L, Teranishi T, Toniolo N, Wakabayashi Y, Watanabe Y, Yang L, Yang Y. 7Be- and8B-reaction dynamics at Coulomb barrier energies. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611706006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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16
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Torresi D, Strano E, Mazzocco M, Boiano A, Boiano C, Di Meo P, La Commara M, Manea C, Nicoletto M, Grebosz J, Guglielmetti A, Molini P, Parascandolo C, Pierroutsakou D, Signorini C, Soramel F, Toniolo N, Filipescu D, Gheorghe A, Glodariu T, Jeong S, Kim Y, Lay J, Miyatake H, Pakou A, Sgouros O, Soukeras V, Stroe L, Vitturi A, Watanabe Y, Zerva K. Elastic scattering of17O+208Pb at energies near the Coulomb barrier. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611708027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Parascandolo C, Pierroutsakou D, Alba R, Del Zoppo A, Maiolino C, Santonocito D, Agodi C, Baran V, Boiano A, Colonna M, Coniglione R, De Filippo E, Di Toro M, Emanuele U, Farinon F, Guglielmetti A, La Commara M, Martin B, Mazzocchi C, Mazzocco M, Rizzo C, Romoli M, Signorini C, Silvestri R, Soramel F, Strano E, Torresi D, Trifirò A, Trimarchi M. Dynamical Dipole mode in the 40,48Ca + 152,144Sm fusion reactions at 11 MeV/nucleon. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611708016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Cavanna F, Depalo R, Aliotta M, Anders M, Bemmerer D, Best A, Boeltzig A, Broggini C, Bruno CG, Caciolli A, Corvisiero P, Davinson T, di Leva A, Elekes Z, Ferraro F, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Menegazzo R, Mossa V, Pantaleo FR, Prati P, Scott DA, Somorjai E, Straniero O, Strieder F, Szücs T, Takács MP, Trezzi D. Three New Low-Energy Resonances in the ^{22}Ne(p,γ)^{23}Na Reaction. Phys Rev Lett 2015; 115:252501. [PMID: 26722918 DOI: 10.1103/physrevlett.115.252501] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Indexed: 06/05/2023]
Abstract
The ^{22}Ne(p,γ)^{23}Na reaction takes part in the neon-sodium cycle of hydrogen burning. This cycle affects the synthesis of the elements between ^{20}Ne and ^{27}Al in asymptotic giant branch stars and novae. The ^{22}Ne(p,γ)^{23}Na reaction rate is very uncertain because of a large number of unobserved resonances lying in the Gamow window. At proton energies below 400 keV, only upper limits exist in the literature for the resonance strengths. Previous reaction rate evaluations differ by large factors. In the present work, the first direct observations of the ^{22}Ne(p,γ)^{23}Na resonances at 156.2, 189.5, and 259.7 keV are reported. Their resonance strengths are derived with 2%-7% uncertainty. In addition, upper limits for three other resonances are greatly reduced. Data are taken using a windowless ^{22}Ne gas target and high-purity germanium detectors at the Laboratory for Underground Nuclear Astrophysics in the Gran Sasso laboratory of the National Institute for Nuclear Physics, Italy, taking advantage of the ultralow background observed deep underground. The new reaction rate is a factor of 20 higher than the recent evaluation at a temperature of 0.1 GK, relevant to nucleosynthesis in asymptotic giant branch stars.
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Affiliation(s)
- F Cavanna
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - R Depalo
- Università degli Studi di Padova and INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - M Aliotta
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - M Anders
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
| | - A Best
- Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - A Boeltzig
- Gran Sasso Science Institute, 67100 LAquila, Italy
| | - C Broggini
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - C G Bruno
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3FD Edinburgh, United Kingdom
| | - A Caciolli
- Università degli Studi di Padova and INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - P Corvisiero
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - T Davinson
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - A di Leva
- Università di Napoli Federico II and INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - Z Elekes
- Institute for Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - F Ferraro
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - A Formicola
- Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - Zs Fülöp
- Institute for Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - G Gervino
- Università degli Studi di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - A Guglielmetti
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - C Gustavino
- INFN, Sezione di Roma La Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | - Gy Gyürky
- Institute for Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - G Imbriani
- Università di Napoli Federico II and INFN, Sezione di Napoli, 80126 Napoli, Italy
| | - M Junker
- Laboratori Nazionali del Gran Sasso (LNGS), 67100 Assergi (AQ), Italy
| | - R Menegazzo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - V Mossa
- Università degli Studi di Bari and INFN, Sezione di Bari, 70125 Bari, Italy
| | - F R Pantaleo
- Università degli Studi di Bari and INFN, Sezione di Bari, 70125 Bari, Italy
| | - P Prati
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - D A Scott
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - E Somorjai
- Institute for Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - O Straniero
- Osservatorio Astronomico di Collurania, Teramo, and INFN, Sezione di Napoli, Napoli, Italy
| | - F Strieder
- Institut für Experimentalphysik III, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - T Szücs
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
| | - M P Takács
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden, Germany
- Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, Germany
| | - D Trezzi
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
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19
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Anders M, Trezzi D, Menegazzo R, Aliotta M, Bellini A, Bemmerer D, Broggini C, Caciolli A, Corvisiero P, Costantini H, Davinson T, Elekes Z, Erhard M, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Junker M, Lemut A, Marta M, Mazzocchi C, Prati P, Rossi Alvarez C, Scott DA, Somorjai E, Straniero O, Szücs T. First direct measurement of the 2H(α,γ)6Li cross section at big bang energies and the primordial lithium problem. Phys Rev Lett 2014; 113:042501. [PMID: 25105610 DOI: 10.1103/physrevlett.113.042501] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Indexed: 06/03/2023]
Abstract
Recent observations of (6)Li in metal poor stars suggest a large production of this isotope during big bang nucleosynthesis (BBN). In standard BBN calculations, the (2)H(α,γ)(6)Li reaction dominates (6)Li production. This reaction has never been measured inside the BBN energy region because its cross section drops exponentially at low energy and because the electric dipole transition is strongly suppressed for the isoscalar particles (2)H and α at energies below the Coulomb barrier. Indirect measurements using the Coulomb dissociation of (6)Li only give upper limits owing to the dominance of nuclear breakup processes. Here, we report on the results of the first measurement of the (2)H(α,γ)(6)Li cross section at big bang energies. The experiment was performed deep underground at the LUNA 400 kV accelerator in Gran Sasso, Italy. The primordial (6)Li/(7)Li isotopic abundance ratio has been determined to be (1.5 ± 0.3) × 10(-5), from our experimental data and standard BBN theory. The much higher (6)Li/(7)Li values reported for halo stars will likely require a nonstandard physics explanation, as discussed in the literature.
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Affiliation(s)
- M Anders
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany and Technische Universität Dresden, Mommsenstrasse 9, 01069 Dresden, Germany
| | - D Trezzi
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - R Menegazzo
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - M Aliotta
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - A Bellini
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - D Bemmerer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - C Broggini
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - A Caciolli
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - P Corvisiero
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - H Costantini
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - T Davinson
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - Z Elekes
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - M Erhard
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - A Formicola
- Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, Italy
| | - Zs Fülöp
- Institute of Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - G Gervino
- Università degli Studi di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - A Guglielmetti
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - C Gustavino
- INFN, Sezione di Roma "La Sapienza", Piazzale A. Moro 2, 00185 Roma, Italy
| | - Gy Gyürky
- Institute of Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - M Junker
- Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, Italy
| | - A Lemut
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - M Marta
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - C Mazzocchi
- Università degli Studi di Milano and INFN, Sezione di Milano, Via G. Celoria 16, 20133 Milano, Italy
| | - P Prati
- Università degli Studi di Genova and INFN, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy
| | - C Rossi Alvarez
- INFN, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy
| | - D A Scott
- SUPA, School of Physics and Astronomy, University of Edinburgh, EH9 3JZ Edinburgh, United Kingdom
| | - E Somorjai
- Institute of Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
| | - O Straniero
- Osservatorio Astronomico di Collurania, Via M. Maggini, 64100 Teramo, Italy and INFN, Sezione di Napoli, Via Cintia, 80126 Napoli, Italy
| | - T Szücs
- Institute of Nuclear Research (MTA ATOMKI), PO Box 51, HU-4001 Debrecen, Hungary
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20
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Torresi D, Strano E, Mazzocco M, Boiano A, Boiano C, Di Meo P, Guglielmetti A, La Commara M, Manea C, Nicoletto M, Parascandolo C, Parascandolo L, Pierroutsakou D, Sandoli M, Signorini C, Soramel F, Toniolo N, Grebosz J, Filipescu D, Gheorghe A, Glodariu T, Stroe L, Miyatake H, Watanabe Y, Jeong S, Kim Y, Pakou A, Sgouros O, Soukeras V, Zerva K. Elastic scattering of 17O ions from 58Ni at near-barrier energies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Mazzocco M, Torresi D, Acosta L, Boiano A, Boiano C, Fierro N, Glodariu T, Guglielmetti A, Keeley N, La Commara M, Martel I, Mazzocchi C, Molini P, Pakou A, Parascandolo C, Parkar V, Patronis N, Pierroutsakou D, Romoli M, Rusek K, Sanchez-Benitez A, Sandoli M, Signorini C, Silvestri R, Soramel F, Stiliaris E, Strano E, Stroe L, Zerva K. Transfer vs. Breakup in the interaction of the 7Be Radioactive Ion Beam with a 58Ni target at Coulomb barrier energies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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Parascandolo C, Pierroutsakou D, Agodi C, Alba R, Baran V, Boiano A, Colonna M, Coniglione R, De Filippo E, Del Zoppo A, Di Toro M, Emanuele U, Farinon F, Guglielmetti A, La Commara M, Maiolino C, Martin B, Mazzocco M, Mazzocchi C, Rizzo C, Romoli M, Santonocito D, Signorini C, Silvestri R, Soramel F, Strano E, Torresi D, Trifirò A, Trimarchi M. Investigation of the Dynamical Dipole mode in the 192Pb mass region. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Scott DA, Caciolli A, Di Leva A, Formicola A, Aliotta M, Anders M, Bemmerer D, Broggini C, Campeggio M, Corvisiero P, Elekes Z, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Gyürky G, Imbriani G, Junker M, Laubenstein M, Menegazzo R, Marta M, Napolitani E, Prati P, Rigato V, Roca V, Somorjai E, Salvo C, Straniero O, Strieder F, Szücs T, Terrasi F, Trezzi D. First direct measurement of the 17O(p,γ)18F reaction cross section at Gamow energies for classical novae. Phys Rev Lett 2012; 109:202501. [PMID: 23215474 DOI: 10.1103/physrevlett.109.202501] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Indexed: 06/01/2023]
Abstract
Classical novae are important contributors to the abundances of key isotopes, such as the radioactive (18)F, whose observation by satellite missions could provide constraints on nucleosynthesis models in novae. The (17)O(p,γ)(18)F reaction plays a critical role in the synthesis of both oxygen and fluorine isotopes, but its reaction rate is not well determined because of the lack of experimental data at energies relevant to novae explosions. In this study, the reaction cross section has been measured directly for the first time in a wide energy range E(c.m.)~/= 200-370 keV appropriate to hydrogen burning in classical novae. In addition, the E(c.m.)=183 keV resonance strength, ωγ=1.67±0.12 μeV, has been measured with the highest precision to date. The uncertainty on the (17)O(p,γ)(18)F reaction rate has been reduced by a factor of 4, thus leading to firmer constraints on accurate models of novae nucleosynthesis.
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Affiliation(s)
- D A Scott
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
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Mazzocco M, Signorini C, Pierroutsakou D, Glodariu T, Boiano A, Boiano C, Castellani L, Corti D, De Rosa A, Di Meo P, Farinon F, Figuera P, Filipescu D, Fortunato L, Galet G, Grebosz J, Guglielmetti A, Inglima G, La Commara M, Lattuada M, Lotti P, Manea C, Mazzocchi C, Molini P, Musumarra A, Nicoletto M, Pakou A, Parascandolo C, Patronis N, Romoli M, Sandoli M, Scuderi V, Silvestri R, Soramel F, Stroe L, Toniolo N, Torresi D, Vardaci E, Vitturi A. Does the breakup process affect the reaction dynamics for the systems17O,17F +58Ni at Coulomb barrier energies? EPJ Web of Conferences 2011. [DOI: 10.1051/epjconf/20111713005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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25
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Pierroutsakou D, Parascandolo C, Silvestri R, Agodi C, Alba R, Baran V, Boiano A, Colonna M, Coniglione R, De Filippo E, De Rosa A, Del Zoppo A, Di Toro M, Emanuele U, Farinon F, Guglielmetti A, Inglima G, La Commara M, Maiolino C, Martin B, Mazzocco M, Mazzocchi C, Molini P, Rizzo C, Romoli M, Sandoli M, Santonocito D, Signorini C, Soramel F, Trifirò A, Trimarchi M. Dynamical Dipole mode in heavy-ion fusion reactions by using stable and radioactive beams. EPJ Web of Conferences 2011. [DOI: 10.1051/epjconf/20111710006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Guglielmetti A, Bedoya J, Acuna M, Leiva V, Gonzalez S. Successful aminolevulinic acid photodynamic therapy for recalcitrant severe hidradenitis suppurativa. Photodermatology, Photoimmunology & Photomedicine 2010; 26:110-1. [DOI: 10.1111/j.1600-0781.2010.00499.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Prati P, Bemmerer D, Bonetti R, Broggini C, Corvisiero P, Confortola F, Conti E, Costantini H, Elekes Z, Formicola A, Fülöp Z, Gervino G, Guglielmetti A, Gyürky G, Gustavino C, Imbriani G, Junker M, Lemut A, Limata B, Marta M, Mazzocchi C, Menegazzo R, Roca V, Rolfs C, Alvarez CR, Somorjai E, Straniero O, Strieder F, Terrasi F, Trautvetter HP, Demetriou P, Julin R, Harissopulos SV. Nuclear Astrophysics At LUNA: Status And Perspectives. ACTA ACUST UNITED AC 2008. [DOI: 10.1063/1.2939316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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28
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Bemmerer D, Confortola F, Costantini H, Formicola A, Gyürky G, Bonetti R, Broggini C, Corvisiero P, Elekes Z, Fülöp Z, Gervino G, Guglielmetti A, Gustavino C, Imbriani G, Junker M, Laubenstein M, Lemut A, Limata B, Lozza V, Marta M, Menegazzo R, Prati P, Roca V, Rolfs C, Alvarez CR, Somorjai E, Straniero O, Strieder F, Terrasi F, Trautvetter HP. Activation measurement of the 3He(alpha,gamma)7Be cross section at low energy. Phys Rev Lett 2006; 97:122502. [PMID: 17025958 DOI: 10.1103/physrevlett.97.122502] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2006] [Indexed: 05/12/2023]
Abstract
The nuclear physics input from the 3He(alpha,gamma)7Be cross section is a major uncertainty in the fluxes of 7Be and 8B neutrinos from the Sun predicted by solar models and in the 7Li abundance obtained in big-bang nucleosynthesis calculations. The present work reports on a new precision experiment using the activation technique at energies directly relevant to big-bang nucleosynthesis. Previously such low energies had been reached experimentally only by the prompt-gamma technique and with inferior precision. Using a windowless gas target, high beam intensity, and low background gamma-counting facilities, the 3He(alpha,gamma)7Be cross section has been determined at 127, 148, and 169 keV center-of-mass energy with a total uncertainty of 4%. The sources of systematic uncertainty are discussed in detail. The present data can be used in big-bang nucleosynthesis calculations and to constrain the extrapolation of the 3He(alpha,gamma)7Be astrophysical S factor to solar energies.
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Affiliation(s)
- D Bemmerer
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Padova, via Marzolo 8, 35131 Padova, Italy
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29
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Tretyakova S, Bonetti R, Golovchenko A, Guglielmetti A, Ilic R, Mazzocchi C, Mikheev V, Ogloblin A, Ponomarenko V, Shigin V, Skvar J. Study of cluster decay of 242Cm using SSNTD. RADIAT MEAS 2001. [DOI: 10.1016/s1350-4487(01)00159-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Tretyakova S, Bonetti R, Golovchenko A, Guglielmetti A, Hussonnois M, Ilić R, Kobzev A, Mikheev V, Oglobin A, Poli C, Ponomarenko V, Timofeeva O, Shigin V, Skvarč J. Use of phosphate glass detectors for study of curium-242 cluster radioactivity. RADIAT MEAS 1999. [DOI: 10.1016/s1350-4487(99)00086-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Muñoz G, Velasco M, Thiers V, Hurtado C, Brahm J, Larrondo-Lillo M, Guglielmetti A, Smok G, Brechot C, Lamas E. [Prevalence and genotypes of hepatitis C virus in blood donors and in patients with chronic liver disease and hepatocarcinoma in a Chilean population]. Rev Med Chil 1998; 126:1035-42. [PMID: 9922505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
BACKGROUND The impact of hepatitis C virus infection in Chile has not been well established. AIM To assess hepatitis C virus infection in normal Chileans and in patients with liver disease. SUBJECTS AND METHODS Antibodies against hepatitis C virus were investigated in 21,000 blood donors, 133 patients with non alcoholic chronic liver disease and in 50 patients with hepatocarcinoma. Viral RNA was studied by polymerase chain reaction in all positive blood donors, in 51 patients with chronic liver disease and in all patients with hepatocarcinoma. Hepatitis C virus genotype was established using restriction fragment length polymorphism in 118 RNA positive samples. RESULTS In blood donors, a 0.3% prevalence of positive antibodies was found. The figure for chronic liver disease was 53% and for hepatocarcinoma, 48%. Viral RNA was detected in 100% of patients with chronic liver disease and hepatocarcinoma and in 68% of blood donors with positive antibodies. Genotype 1b was identified in all infected patients with hepatocarcinoma, in 86% of patients with chronic liver disease and in 46% of blood donors. CONCLUSIONS Hepatitis C virus infection is an important etiologic agent for chronic liver disease in Chile. The predominance of genotype 1b among patients with the most severe form of liver disease is in agreement with observations made abroad.
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Affiliation(s)
- G Muñoz
- Centro de Gastroenterología, Universidad de Chile
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32
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Bonetti R, Guglielmetti A, Poli G. The 11B(α,p) reaction and its relevance in subsurface 14C production. Appl Radiat Isot 1997. [DOI: 10.1016/s0969-8043(97)00011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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34
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Guglielmetti A, Bonetti R, Poli G, Price PB, Westphal AJ, Janas Z, Keller H, Kirchner R, Klepper O, Piechaczek A, Roeckl E, Schmidt K, Plochocki A, Szerypo J, Blank B. Identification of the new isotope 114Ba and search for its alpha and cluster radioactivity. Phys Rev C Nucl Phys 1995; 52:740-743. [PMID: 9970565 DOI: 10.1103/physrevc.52.740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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35
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Bonetti R, Chiesa C, Guglielmetti A, Matheoud R, Poli G, Mikheev VL, Tretyakova SP. First observation of spontaneous fission and search for cluster decay of 232Th. Phys Rev C Nucl Phys 1995; 51:2530-2533. [PMID: 9970335 DOI: 10.1103/physrevc.51.2530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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36
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Cabrera R, Silva S, Díaz de Medina J, Hoell I, Guglielmetti A, Rohmann I. [Clinical study of 113 cases of malignant melanoma]. Rev Med Chil 1994; 122:900-6. [PMID: 7761720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Malignant Melanoma (MM) incidence rate is increasing faster than many other cancer at present time. Its epidemiological and clinical behavior varies within countries. We have studied 113 cases of cutaneous melanoma from 1982-1993, that represents until now the largest series of MM studied in Chile. Superficial Spreading Melanoma was the most common type of MM with 37.5% of total cases followed by Nodular Melanoma 31.2%. Acral Melanoma 22.1%, and Lentigo Malignant Melanoma with 7.8%. MM favored females with 60.2% (n = 68) and males constituted 39.8% (n = 45) of all cases. Median age at diagnosis was 54 years. Primary more frequent location for man was thorax (36.4%) and lower extremities for women (28.6%). Hemorrhage, ulceration and rapid growth of a previously pigmented lesion as the primary cause for first medical visit were associated with high level of invasion, generally over 2 mm. thick. Color change and pruritus were associated with lower level of invasion. Patients in stage I (78.3%) had 1.35 mm of median invasive thickness in the primary lesion and patients in stage II (15.7%) had 3.03 mm.
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Affiliation(s)
- R Cabrera
- Departamento de Dermatología, Facultad de Medicina, Universidad de Chile, Hospital J J Aguirre
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37
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Bussolino F, Colotta F, Bocchietto E, Guglielmetti A, Mantovani A. Recent developments in the cell biology of granulocyte-macrophage colony-stimulating factor and granulocyte colony-stimulating factor: activities on endothelial cells. Int J Clin Lab Res 1993; 23:8-12. [PMID: 7682862 DOI: 10.1007/bf02592273] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [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
Granulocyte-macrophage colony-stimulating factor and granulocyte colony-stimulating factor were considered as growth and differentiation factors restricted to hematopoietic cells. It was recently found that non-hematopoietic cells, including endothelial cells, respond to these cytokines. In this review we describe their effects on endothelial cells, underlining their role in the behavior and survival of the microenvironment of bone marrow, in the angiogenesis process related to the progression of solid tumors and of vascular tumors, and in the homing of lymphocytes.
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Affiliation(s)
- F Bussolino
- Dipartimento di Genetica, Biologia e Chimica Medica, Turin, Italy
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Colotta F, Bussolino F, Polentarutti N, Guglielmetti A, Sironi M, Bocchietto E, De Rossi M, Mantovani A. Differential expression of the common beta and specific alpha chains of the receptors for GM-CSF, IL-3, and IL-5 in endothelial cells. Exp Cell Res 1993; 206:311-7. [PMID: 7684696 DOI: 10.1006/excr.1993.1151] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.6] [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: 01/26/2023]
Abstract
The present study was designed to reexamine the interaction of granulocyte-macrophage colony-stimulating factor (GM-CSF) with endothelial cells (EC) and to investigate the expression of CSF receptor chains in these cells. In agreement with previous data, GM-CSF induced directional migration and, to a lesser degree, proliferation of human umbilical vein EC. When compared to basic fibroblast growth factor, GM-CSF was comparable in terms of chemotactic activity and was substantially less active in terms of proliferation. Binding studies confirmed the presence of receptors for GM-CSF (GM-CSFR) on EC. The expression of the beta chain common to the GM-CSFR, IL-3 receptor, and IL-5 receptor, as well as of the individual alpha chains, was studied by Northern analysis and/or reverse transcription and polymerase chain reaction. EC expressed high levels of the common beta chain transcripts. Expression of the alpha(GM) and alpha(IL-5) chain mRNA was minimal or absent in normal EC, though the transformed ECV304 endothelial cell line had substantial amounts of alpha(GM) chain mRNA. Unexpectedly, EC expressed alpha(IL-3) chain transcripts. IL-3 induced migration of EC across polycarbonate filters, whereas IL-5 was inactive.
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MESH Headings
- Animals
- Base Sequence
- Cell Division/drug effects
- Cells, Cultured
- Chemotaxis/drug effects
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/physiology
- Granulocyte-Macrophage Colony-Stimulating Factor/metabolism
- Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology
- Humans
- Interleukin-3/pharmacology
- Interleukin-5/metabolism
- Kinetics
- Macromolecular Substances
- Mice
- Molecular Sequence Data
- Oligodeoxyribonucleotides
- Polymerase Chain Reaction
- RNA/genetics
- RNA/isolation & purification
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Granulocyte-Macrophage Colony-Stimulating Factor/genetics
- Receptors, Granulocyte-Macrophage Colony-Stimulating Factor/metabolism
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Receptors, Interleukin
- Receptors, Interleukin-3/genetics
- Receptors, Interleukin-3/metabolism
- Receptors, Interleukin-5
- Recombinant Proteins/pharmacology
- Transcription, Genetic
- Umbilical Veins
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Affiliation(s)
- F Colotta
- Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy
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Bocchietto E, Guglielmetti A, Silvagno F, Taraboletti G, Pescarmona GP, Mantovani A, Bussolino F. Proliferative and migratory responses of murine microvascular endothelial cells to granulocyte-colony-stimulating factor. J Cell Physiol 1993; 155:89-95. [PMID: 7682223 DOI: 10.1002/jcp.1041550112] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Microvascular murine endothelial cells lines transformed by middle T oncogene of polyoma virus maintain the biological characteristics of nontransformed microvascular endothelial cells (EC). By using cell lines originated from different anatomical districts (thymus, brain, heart, and skin), we demonstrated that murine granulocyte-colony-stimulating factor (G-CSF) induces proliferation of murine microvascular endothelial cells at nanomolar concentrations without any cooperation with fetal calf serum. The proliferative effect on murine cells is less than that elicited by epidermal growth factor (EGF), used as standard for this function. G-CSF also promotes the migration of tEnd.1 endothelial cell line assayed by Boyden chamber technique. The analysis of transcript for G-CSF receptor (G-CSFR) by Northern blot hybridization and by reverse-transcriptase polymerase chain reaction (RT-PCR) shows that these cell lines have specific mRNA, with the size of that present in myeloid cells. These results indicate that G-CSF operates in the microvascular endothelial cells by a mechanism related to the presence of a specific receptor.
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Affiliation(s)
- E Bocchietto
- Dipartimento di Genetica, Biologia e Chimica Medica, Torino, Italy
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Price PB, Bonetti R, Guglielmetti A, Chiesa C, Matheoud R, Migliorino C, Moody KJ. Emission of 23F and 24Ne in cluster radioactivity of 231Pa. Phys Rev C Nucl Phys 1992; 46:1939-1945. [PMID: 9968312 DOI: 10.1103/physrevc.46.1939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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41
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Bussolino F, Guglielmetti A, Ghigo D, Pescarmona G, Bosia A. Protein kinase C activation in murine endothelioma cell lines containing middle T antigen stimulated by platelet-activating factor. J Lipid Mediat 1992; 5:109-13. [PMID: 1525349] [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
Murine endothelial cell lines containing middle T antigen provide a good model to study the biology of capillary cells of different anatomical districts. These cell lines obtained from skin (sEnd.1), brain (bEnd.4), thymus (tEnd-1) and embryo tissue (eEnd.1) are activated by platelet-activating factor (PAF). PAF, but not lyso-PAF or the enantiomer (S)-PAF, induces the rapid translocation of protein kinase C (PKC) from the cytosol to the membrane. Maximal translocation of the enzyme is achieved after 5 min in all cell lines tested. The ED50 of PAF able to promote PKC translocation has a value of 5 nM in sEnd.1, bEnd.4 and eEnd.1, and 20 nM in tEnd.1, suggesting a different sensitivity between these cell lines. The data indicate that PAF activates capillary cells, thus explaining its activation of microvascular beds.
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Affiliation(s)
- F Bussolino
- Dipartimento di Genetica, Biologia e Chimica Medica, Universita di Torino, Italy
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42
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Bonetti R, Chiesa C, Guglielmetti A, Migliorino C, Cesana A, Terrani M, Price PB. Neon radioactivity of uranium isotopes. Phys Rev C Nucl Phys 1991; 44:888-890. [PMID: 9967474 DOI: 10.1103/physrevc.44.888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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43
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Bonetti R, Capra L, Chiesa C, Guglielmetti A, Migliorino C. Energy response of LR-115 cellulose nitrate to alpha-particle beams. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/1359-0189(91)90025-d] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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44
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Acuña P, Guglielmetti A, Becerra O, Valdivia F, Marchese A, Vega J. [Values of the mean corpuscular volume in alcoholics and its variation with abstinence]. Rev Med Chil 1986; 114:1134-8. [PMID: 3602693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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