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Dalmonte S, Golinelli P, Oberhofer N, Strocchi S, Rossetti V, Berta L, Porzio M, Angelini L, Paruccini N, Villa R, Bertolini M, Delle Canne S, Cavallari M, D'Ercole L, Guerra G, Rosasco R, Cannillo B, D'Alessio A, Di Nicola E, Origgi D, De Marco P, Maldera A, Scabbio C, Rottoli F, Castriconi R, Lorenzini E, Pasquali G, Pietrobon F, Bregant P, Giovannini G, Favuzza V, Bruschi A, D'Urso D, Maestri D, De Novellis S, Fracassi A, Boschiroli L, Quattrocchi M, Gilio MA, Roberto E, Altabella L, Califano G, Cimmino MC, Bortoli E, Deiana E, Pagan L, Berardi P, Ardu V, Azzeroni R, Campoleoni M, Ravaglia V. Typical values of z-resolution for different Digital Breast Tomosynthesis systems evaluated in a multicenter study. Phys Med 2024; 119:103300. [PMID: 38325222 DOI: 10.1016/j.ejmp.2024.103300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/07/2023] [Accepted: 01/23/2024] [Indexed: 02/09/2024] Open
Abstract
PURPOSE The aim of the present study, conducted by a working group of the Italian Association of Medical Physics (AIFM), was to define typical z-resolution values for different digital breast tomosynthesis (DBT) models to be used as a reference for quality control (QC). Currently, there are no typical values published in internationally agreed QC protocols. METHODS To characterize the z-resolution of the DBT models, the full width at half maximum (FWHM) of the artifact spread function (ASF), a technical parameter that quantifies the signal intensity of a detail along reconstructed planes, was analyzed. Five different commercial phantoms, CIRS Model 011, CIRS Model 015, Modular DBT phantom, Pixmam 3-D, and Tomophan, were evaluated on reconstructed DBT images and 82 DBT systems (6 vendors, 9 models) in use at 39 centers in Italy were involved. RESULTS The ASF was found to be dependent on the detail size, the DBT angular acquisition range, the reconstruction algorithm and applied image processing. In particular, a progressively greater signal spread was observed as the detail size increased and the acquisition angle decreased. However, a clear correlation between signal spread and angular range width was not observed due to the different signal reconstruction and image processing strategies implemented in the algorithms developed by the vendors studied. CONCLUSIONS The analysis led to the identification of typical z-resolution values for different DBT model-phantom configurations that could be used as a reference during a QC program.
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Affiliation(s)
- S Dalmonte
- Medical Physics Specialization School, University of Bologna, Bologna, Italy; Medical Physics Unit, AUSL Romagna, Ravenna, Italy.
| | - P Golinelli
- Medical Physics Unit, Azienda USL Modena, Modena, Italy
| | | | - S Strocchi
- Medical Physics Unit, ASST dei Sette Laghi, Varese, Italy
| | - V Rossetti
- Medical Physics Unit, Città della salute e della scienza, Torino, Italy
| | - L Berta
- Medical Physics Unit, Città della salute e della scienza, Torino, Italy
| | - M Porzio
- Medical Physics Unit, ASL CN1, Cuneo, Italy
| | - L Angelini
- Medical Physics Unit, AUSL Romagna, Ravenna, Italy
| | - N Paruccini
- Medical Physics Unit, ASST Monza, Monza, Italy
| | - R Villa
- Medical Physics Unit, ASST Monza, Monza, Italy
| | - M Bertolini
- Medical Physics Unit, Azienda AUSL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - S Delle Canne
- Medical Physics Unit, Fatebenefratelli Isola Tiberina-Gemelli Isola, Roma, Italy
| | - M Cavallari
- Medical Physics Unit, IRCCS Fondazione Policlinico San Matteo, Pavia, Italy
| | - L D'Ercole
- Medical Physics Unit, IRCCS Fondazione Policlinico San Matteo, Pavia, Italy
| | - G Guerra
- Medical Physics Unit, Studio Associato Fisici Sanitari, Lugo, Italy
| | - R Rosasco
- Medical Physics Unit, ASL3 Sistema Sanitario Regione Liguria, Genova, Italy
| | - B Cannillo
- Medical Physics Unit, AOU Maggiore della Carità, Novara, Italy
| | - A D'Alessio
- Medical Physics Unit, AOU Maggiore della Carità, Novara, Italy
| | - E Di Nicola
- Medical Physics Unit, ASUR Marche Area Vasta3, Macerata, Italy
| | - D Origgi
- Medical Physics Unit, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - P De Marco
- Medical Physics Unit, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | - A Maldera
- Medical Physics Unit, P.O. Dimiccoli - ASL BT, Barletta, Italy
| | - C Scabbio
- Medical Physics Unit, ASST Santi Paolo e Carlo - Presidio San Paolo, Milano, Italy
| | - F Rottoli
- Medical Physics Unit, ASST Santi Paolo e Carlo - Presidio San Paolo, Milano, Italy
| | - R Castriconi
- Medical Physics Unit, IRCCS Ospedale San Raffaele - Gruppo San Donato, Milano, Italy
| | - E Lorenzini
- Medical Physics Unit, Ospedale Civico di Carrara, Carrara, Italy
| | - G Pasquali
- Medical Physics Unit, ASST Bergamo Ovest, Treviglio, Italy
| | - F Pietrobon
- Medical Physics Unit, Ospedale di Belluno, Belluno, Italy
| | - P Bregant
- Medical Physics Unit, Ospedale Cattinara, Trieste, Italy
| | - G Giovannini
- Medical Physics Unit, ASL2 Ospedale Santa Corona, Pietra Ligure, Italy
| | - V Favuzza
- Medical Physics Unit, USL Toscana Centro, Empoli, Italy
| | - A Bruschi
- Medical Physics Unit, USL Toscana Centro, Empoli, Italy
| | - D D'Urso
- Medical Physics Unit, ULSS 2 Marca Trevigiana, Treviso, Italy
| | - D Maestri
- Medical Physics Unit, ULSS 2 Marca Trevigiana, Treviso, Italy
| | | | - A Fracassi
- Medical Physics Unit, ASL Pescara, Pescara, Italy
| | - L Boschiroli
- Medical Physics Unit, ASST Nord Milano, Milano, Italy
| | - M Quattrocchi
- Medical Physics Unit, Azienda Toscana Nord Ovest, Lucca, Italy
| | - M A Gilio
- Medical Physics Unit, Azienda Toscana Nord Ovest, Lucca, Italy
| | - E Roberto
- Medical Physics Unit, ASL CN2 Cuneo, Italy
| | - L Altabella
- Medical Physics Unit, AOUI VR, Verona, Italy
| | - G Califano
- Medical Physics Unit, AOR San Carlo Potenza, Potenza, Italy
| | - M C Cimmino
- Medical Physics Unit, USL Toscana sud est, Siena, Italy
| | - E Bortoli
- Medical Physics Unit, USL Toscana sud est, Grosseto, Italy
| | - E Deiana
- Medical Physics Unit, ASL Cagliari, Cagliari, Italy
| | - L Pagan
- Medical Physics Unit, Azienda USL Bologna, Bologna, Italy
| | - P Berardi
- Medical Physics Unit, Azienda USL Bologna, Bologna, Italy
| | - V Ardu
- Medical Physics Unit, Fondazione IRCCS Ca' Granda, Milano, Italy
| | - R Azzeroni
- Medical Physics Unit, Fondazione IRCCS Ca' Granda, Milano, Italy
| | - M Campoleoni
- Medical Physics Unit, Fondazione IRCCS Ca' Granda, Milano, Italy
| | - V Ravaglia
- Medical Physics Unit, AUSL Romagna, Ravenna, Italy
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Fabris D, Gramegna F, Cicerchia M, Marchi T, Barlini S, Piantelli S, Bini M, Bruno M, Casini G, Cinausero M, D’Agostino M, Degerlier M, Gelli N, Mantovani G, Morelli L, Mabiala J, Olmi A, Pasquali G, Poggi G, Valdré S, Vardaci E, Fotina O, Kravchuk V, Colonna M, Ono A. Pre-equilibrium emission to study clustering in nuclei. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201716300016] [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: 11/15/2022] Open
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Morelli L, Bruno M, D’Agostino M, Baiocco G, Gulminelli F, Cinausero M, Degerlier M, Fabris D, Gramegna F, Marchi T, Barlini S, Bini M, Casini G, Gelli N, Pasquali G, Piantelli S, Valdrè S. Clustering effects in fusion evaporation reactions with light even-even N=Z nuclei. The 24Mg and 28Si cases. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612211002] [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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Piantelli S, Casini G, Maurenzig P, Olmi A, Barlini S, Bini M, Pasquali G, Pastore G, Poggi G, Stefanini A, Valdrè S, Ademard G, Auger L, Bougault R, Bonnet E, Borderie B, Chbihi A, Frankland J, Gruyer D, Lopez O, LeNeindre N, Parlog M, Rivet M, Vient E, Rosato E, Spadaccini G, Vigilante M, Bruno M, Marchi T, Morelli L, Cinausero M, Degerlier M, Gramegna F, Kordyasz A, Kozik T, Twarog T, Alba R, Maiolino C, Santonocito D, Galichet E. FAZIA applications. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611710005] [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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Piantelli S, Casini G, Maurenzig P, Olmi A, Barlini S, Bini M, Carboni S, Pasquali G, Poggi G, Stefanini A, Valdré S, Bougault R, Bonnet E, Borderie B, Chbihi A, Frankland J, Gruyer D, Lopez O, Le Neindre N, Parlog M, Rivet MF, Vient E, Rosato E, Spadaccini G, Vigilante M, Bruno M, Marchi T, Morelli L, Cinausero M, Degerlier M, Gramegna F, Kozik T, Twarog T, Alba R, Maiolino C, Santonocito D. Isospin transport phenomena and odd-even staggering in 84Kr+ 112,124Sn collisions at 35 AMeV. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800029] [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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Marchi T, Gramegna F, Fabris D, Degerlier M, Fotina O, Kravchuk V, D’Agostino M, Morelli L, Appannababu S, Baiocco G, Barlini S, Bini M, Brondi A, Bruno M, Casini G, Cinausero M, Gelli N, Moro R, Olmi A, Pasquali G, Piantelli S, Poggi G, Valdré S, Vardaci E. Pre-equilibrium emission and its possible relation to α-clustering in nuclei. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800016] [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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Morelli L, Baiocco G, D’Agostino M, Gulminelli F, Bruno M, Cinausero M, Degerlier M, Fabris D, Gramegna F, Marchi T, Barlini S, Bini M, Casini G, Gelli N, Olmi A, Pasquali G, Piantelli S, Valdré S. Cluster correlation effects in 12C+ 12C and 14N+ 10B fusion-evaporation reactions. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158800026] [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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Pastore G, Pasquali G, Le Neindre N, Ademard G, Barlini S, Bini M, Bonnet E, Borderie B, Bougault R, Casini G, Chbihi A, Cinausero M, Dueñas J, Edelbruck P, Frankland J, Gramegna F, Gruyer D, Kordyasz A, Kozik T, Lopez O, Marchi T, Morelli L, Olmi A, Ordine A, Pârlog M, Piantelli S, Poggi G, Rivet MF, Rosato E, Salomon F, Spadaccini G, Stefanini A, Valdré S, Vient E, Twaróg T, Alba R, Maiolino C, Santonocito D. Extracting information from partially depleted Si detectors with digital sampling electronics. EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20158801013] [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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Torre RL, Bevilacqua E, D’Ambrosio V, Pasquali G, Aliberti C, Perrone G, Giancotti A. A case of uterine rupture in mid-trimester spontaneous abortion: a complication of gemeprost vaginal administration. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog17342014] [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: 11/01/2022]
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Torre RL, Bevilacqua E, D’Ambrosio V, Pasquali G, Aliberti C, Ventriglia F, Giancotti A. Matrix array transducer for the examination of fetal heart. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog17142014] [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: 11/01/2022]
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Giancotti A, D'Ambrosio V, De Filippis A, Aliberti C, Pasquali G, Bernardo S, Manganaro L. Comparison of ultrasound and magnetic resonance imaging in the prenatal diagnosis of Apert syndrome: report of a case. Childs Nerv Syst 2014; 30:1445-8. [PMID: 24566675 DOI: 10.1007/s00381-014-2377-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 01/28/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND The birth prevalence of Apert syndrome is estimated at 1:64,500 and accounts for about 4.5 % of all craniosynostosis with a male/female ratio equal to 1:1. It is associated to allelic mutations in the fibroblast growth factor receptor 2 (FGFR2) gene. Majority cases are sporadic. Prenatal ultrasound diagnosis is based on the detection of abnormal cranial shape, midfacial hypoplasia and bilateral syndactyly of hands and feet, hypertelorism, and exorbitism. Other abnormalities includes central nervous system anomalies, congenital heart diseases, cleft palate, and urogenital diseases. CASE REPORT A 37-year-old Caucasian woman, gravida 2, para 1, was referred to our center of Prenatal Diagnosis for routine ultrasound at 21 weeks of gestation. We detected irregular head shape, dolicocephaly, prominent forehead, bilateral mild ventriculomegaly, suspicion of partial agenesis of the corpus callosum, hypertelorism, and midfacial hypoplasia, with a depressed nasal bridge and syndactyly, prompting a suspicion for Apert syndrome. Magnetic resonance excluded agenesis of corpus callosum and confirmed bilateral mild ventriculomegaly. A follow-up ultrasound, performed at 23 weeks, confirmed the anomalies showed in the previous scan. An amniocentesis was performed. The results showed a normal male karyotype, while the molecular genetic test confirmed a mutation in FGFR2 gene. Fetus macroscopic analysis showed compatible features. CONCLUSIONS Our case underlines the complementary role of ultrasound and magnetic resonance imaging in the early prenatal diagnosis of Apert syndrome.
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Affiliation(s)
- A Giancotti
- Department of Obstetrics, Gynecology and Urologic Sciences, Umberto I Hospital, "Sapienza" University, Viale del Policlinico 155, 00161, Rome, Italy,
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Valdré S, Barlini S, Casini G, Pasquali G, Piantelli S, Carboni S, Cinausero M, Gramegna F, Marchi T, Baiocco G, Bardelli L, Benzoni G, Bini M, Blasi N, Bracco A, Brambilla S, Bruno M, Camera F, Corsi A, Crespi F, D’Agostino M, Degerlier M, Kravchuk VL, Leoni S, Million B, Montanari D, Morelli L, Nannini A, Nicolini R, Poggi G, Vannini G, Wieland O, Bednarczyk P, Ciemała M, Dudek J, Fornal B, Kmiecik M, Maj A, Matejska-Minda M, Mazurek K, Męczyński WM, Myalski S, Styczeń J, Ziębliński M. Measurement of light charged particles in the decay channels of medium-mass excited compound nuclei. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603090] [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: 11/14/2022] Open
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Fotina O, Goncharov S, Eremenko D, Platonov S, Yuminov O, Kravchuk V, Gramegna F, Marchi T, Cinausero M, D'Agostino M, Bruno M, Baiocco G, Morelli L, Degerlier M, Casini G, Barlini S, Valdrè S, Piantelli S, Pasquali G, Bracco A, Camera F, Wieland O, Benzoni G, Blasi N, Giaz A, Corsi A, Fabris D. Pre-equilibrium α-particle emission as a probe to study α-clustering in nuclei. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603028] [Citation(s) in RCA: 4] [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: 11/14/2022] Open
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La Torre R, Bevilacqua E, D'Ambrosio V, Pasquali G, Aliberti C, Perrone G, Giancotti A. A case of uterine rupture in mid-trimester spontaneous abortion: a complication of gemeprost vaginal administration. CLIN EXP OBSTET GYN 2014; 41:599-600. [PMID: 25864271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The only prostaglandin analogue licensed in Italy for induction of labour in spontaneous and therapeutic abortion is gemeprost. The authors report a case of spontaneous uterine rupture of a scarred uterus, for previous caesarean sections, in a woman at 20 weeks of gestation with a diagnosis of spontaneous abortion. She received a pessary of gemeprost every three hours. After the fifth pessary, she complained of severe pain. At the ultrasound examination, uterine cavity appeared empty and the dead fetus was dislocated in the abdomen. Emergency laparotomy was performed and uterine tear was repaired. To induce labour for fetal demise or therapeutic abortion in second trimester in women with scarred uterus, the authors decided to lengthen the time between administrations of pessary from four to five hours depending on patient's symptoms. However the appropriate drug regimen has still to be found and more data are necessary.
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Giaz A, Corsi A, Camera F, Wieland O, Kravchuk VL, Barlini S, Alba R, Bednarczyk P, Bracco A, Baiocco G, Bardelli L, Benzoni G, Bini M, Blasi N, Brambilla S, Bruno M, Casini G, Ciemala M, Cinausero M, Chiari M, Colonna M, Crespi FCL, D’Agostino M, Degerlier M, Di Toro M, Gramegna F, Kmiecik M, Leoni S, Maiolino C, Maj A, Marchi T, Mazurek K, Meczynski W, Million B, Montanari D, Morelli L, Nannini A, Nicolini R, Pasquali G, Piantelli S, Ordine A, Poggi G, Rizzi V, Rizzo C, Santonocito D, Vandone V, Vannini G. Dynamical Dipole and Equation of State in N/Z Asymmetric Fusion Reactions. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603033] [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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Morelli L, Baiocco G, D’Agostino M, Bruno M, Gulminelli F, Cinausero M, Degerlier M, Fabris D, Gramegna F, Marchi T, Barlini S, Bini M, Casini G, Gelli N, Lopez A, Pasquali G, Piantelli S, Valdrè S. Probing the Statistical Decay and α-clustering effects in 12C + 12C and 14N + 10B reactions. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603064] [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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Casini G, Barlini S, Pasquali G, Pastore G, Bini M, Carboni S, Olmi A, Piantelli S, Poggi G, Stefanini A, Valdré S, Bonnet E, Borderie B, Bougault R, Bruno M, Chbihi A, Cinausero M, Degerlier M, Edelbruck P, Frankland J, Gramegna F, Gruyer D, Guerzoni M, Kordjasz A, Kozik T, Le Neindre N, Lopez O, Marchi T, Marini P, Morelli L, Ordine A, Pârlog M, Rivet M, Rosato E, Salomon F, Spadaccini G, Twaróg T, Vient E, Vigilante M. The european FAZIA initiative: a high-performance digital telescope array for heavy-ion studies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146611006] [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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La Torre R, Bevilacqua E, D'Ambrosio V, Pasquali G, Aliberti C, Ventriglia F, Giancotti A. Matrix array transducer for the examination of fetal heart. CLIN EXP OBSTET GYN 2014; 41:581-582. [PMID: 25864265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The X6-1 xmatrix array transducer allows a completely new approach to the diagnostic ultrasound: it permits visualization of fetal heart in real time, without the need for gating, and it is unaffected by motion artefacts. It is obtained in real time, without any spatial reconstruction. The authors compared this technology with the traditional one in two case reports: a diagnostic doubt of small muscular ventricular septal defect was solved using this new technique; a diagnosis of complete atrioventricular septal defect was confirmed. Three-dimensional real-time imaging would seem very precise in the study of fetal heart: the defects were fully visualized from any angulations. This new technology is promising but from the authors' limited experience, there is no evidence to use it in routine practice. It should be very useful to commence a prospective study on fetuses at risk while testing the superiority of this technique.
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Piantelli S, Casini G, Olmi A, Barlini S, Bini M, Carboni S, Maurenzig P, Pasquali G, Poggi G, Stefanini A, Bougault R, Le Neindre N, Lopez O, Parlog M, Vient E, Bonnet E, Chbihi A, Frankland J, Gruyer D, Rosato E, Spadaccini G, Vigilante M, Borderie B, Rivet M, Bruno M, Morelli L, Cinausero M, Degerlier M, Gramegna F, Marchi T, Alba R, Maiolino C, Santonocito D, Kozik T, Twarog T. Isospin transport in 84Kr+ 112,124Sn reactions at Fermi energies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603070] [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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Giancotti A, Muto B, Diambrosio V, Bevilacqua E, Pasquali G, Squarcella A, La Torre R. Ultrasound management and clinical outcome of twin pregnancies. J OBSTET GYNAECOL 2013; 33:675-7. [DOI: 10.3109/01443615.2013.813915] [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: 11/13/2022]
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Giancotti A, Bevilacqua E, D'Ambrosio V, Pasquali G, Gasbarri A. A new technology in the diagnosis of small ventricular septal defects. J OBSTET GYNAECOL 2012; 32:394-5. [PMID: 22519490 DOI: 10.3109/01443615.2012.664585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- A Giancotti
- Department of Obstetrics, Gynecology and Urologic Sciences, Sapienza University, Umberto I Hospital, Rome, Italy.
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Giancotti A, La Torre R, Bevilacqua E, D'Ambrosio V, Pasquali G, Panici PB. Mediastinal masses: a case of fetal teratoma and literature review. CLIN EXP OBSTET GYN 2012; 39:384-387. [PMID: 23157052] [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: 06/01/2023]
Abstract
Fetal mediastinal masses are rare congenital formations that could complicate pregnancy. They are usually discovered as space occupying lesions in the fetal chest during routine ultrasound scan. The most important prognostic factors of mediastinal masses are mass location, compressing effect causing pulmonary hypoplasia and/or heart failure, and the presence or absence of hydrops. We report a case of fetal mediastinal teratoma and a review of the literature. A 32-year-old woman carrying a fetus with hydrops due to a mediastinal mass underwent cesarean section at 32 1/7 weeks' gestation. A well encapsulated tumor was excised by surgery at one day of life. The baby is now eight months old without respiratory difficulty. To our knowledge, this is the fourth case report of a mediastinal teratoma associated with nonimmune hydrops in a fetus that survived the neonatal period. Fetal mediastinal teratoma requires close surveillance and multidisciplinary management by obstetricians, neonatologists, and pediatric surgeons.
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Affiliation(s)
- A Giancotti
- Department of Obstetrics, Gynecology and Urologic Sciences Sapienza University, Umberto I Hospital, Rome, Italy.
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Giancotti A, Spagnuolo A, Bisogni F, D’Ambrosio V, Pasquali G, Panici PB. Pregnancy and systemic lupus erythematosus: role of ultrasound monitoring. Eur J Obstet Gynecol Reprod Biol 2011; 154:233-4. [DOI: 10.1016/j.ejogrb.2010.10.020] [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] [Received: 03/09/2010] [Revised: 09/24/2010] [Accepted: 10/26/2010] [Indexed: 10/18/2022]
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Giancotti A, Spagnuolo A, D'ambrosio V, Pasquali G, Muto B, De Gado F. [Pregnancy in lupus patients: our experience]. Minerva Ginecol 2010; 62:551-558. [PMID: 21413168] [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: 05/30/2023]
Abstract
AIM Systematic lupus erythematosus (SLE) is the most common autoimmune disease associated with pregnancy. The aim of this study was to evaluate management and outcome of pregnancy complicated by SLE. METHODS Twenty pregnant women affected by SLE were admitted to Prenatal Diagnosis Centre of University "Sapienza" from January 2007 to July 2009. Pregnancy was monitored from diagnosis to delivery by at least a monthly consultation. At each visit general blood laboratory assessment were registered. An ultrasound examination was performed to evaluate fetal growth. From 26 weeks of gestation an estimation of fetal weight was calculated according to the standard of Lubchenco. At birth newborns weight was registered. RESULTS Patient mean age was 32.9 years. There were 18 live births (90%), and 2 spontaneous abortions; 50% of pregnancy ended with a preterm delivery. 20% of the patient had signs of disease activity during pregnancy. Fifteen percent of women presented gestational hypertension. An high rate of small for gestational age was registered and 2 cases of intrauterine growth retardation (IUGR). Ultrasound evaluation at 28-30 weeks of gestation showed a normal weight (≥ 50th percentile) in 83% fetuses. Only 45% of the newborns presented ≥ 50th percentile. The mean weight of the newborns was 2700 grams. CONCLUSION Pregnancy outcome could be improved by close obstetrical and ultrasound monitoring in a multidisciplinary setting.
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Affiliation(s)
- A Giancotti
- Dipartimento di Ginecologia ed Ostetricia, Universita degli studi di roma Sapienza, Policlinoco Umberto I Roma, Viale del Poloclinico, 155, 00161 Roma, Italia.
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Pinelli D, Fava F, Nocentini M, Pasquali G. Bioremediation of a polycyclic aromatic hydrocarbon‐contaminated soil by using different aerobic batch bioreactor systems. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/15320389709383563] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- D. Pinelli
- a Department of Chemical, Mining and Environmental Engineering , University of Bologna , viale Risorgimento 2, Bologna, 40136, Italy
| | - F. Fava
- b Department of Applied Chemistry and Science of Materials , University of Bologna , viale Risorgimento 2, Bologna, 40136, Italy
| | - M. Nocentini
- a Department of Chemical, Mining and Environmental Engineering , University of Bologna , viale Risorgimento 2, Bologna, 40136, Italy
| | - G. Pasquali
- a Department of Chemical, Mining and Environmental Engineering , University of Bologna , viale Risorgimento 2, Bologna, 40136, Italy
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Becker-Ritt AB, Martinelli AHS, Mitidieri S, Feder V, Wassermann GE, Santi L, Vainstein MH, Oliveira JTA, Fiuza LM, Pasquali G, Carlini CR. Antifungal activity of plant and bacterial ureases. Toxicon 2007; 50:971-83. [PMID: 17825863 DOI: 10.1016/j.toxicon.2007.07.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Revised: 07/10/2007] [Accepted: 07/11/2007] [Indexed: 10/23/2022]
Abstract
Ureases (EC 3.5.1.5) are nickel-dependent metalloenzymes that catalyze the hydrolysis of urea to ammonia and carbon dioxide. Produced by plants, fungi and bacteria, but not by animals, ureases share significant homology and similar mechanisms of catalysis, although differing in quaternary structures. While fungal and plant ureases are homo-oligomeric proteins of 90 kDa subunits, bacterial ureases are multimers of two (e.g. Helicobacter pylori) or three subunit complexes. It has been proposed that in plants these enzymes are involved in nitrogen bioavailability and in protection against pathogens. Previous studies by our group have shown that plant ureases, but not a bacterial (Bacillus pasteurii) urease, display insecticidal activity. Herein we demonstrate that (Glycine max) embryo-specific soybean urease, jackbean (Canavalia ensiformis) major urease and a recombinant H. pylori urease impair growth of selected phytopathogenic fungi at sub-micromolar concentrations. This antifungal property of ureases is not affected by treatment of the proteins with an irreversible inhibitor of the ureolytic activity. Scanning electron microscopy of urease-treated fungi suggests plasmolysis and cell wall injuries. Altogether, our data indicate that ureases probably contribute to the plant arsenal of defense compounds against predators and phytopathogens and that the urease defense mechanism is independent of ammonia release from urea.
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Affiliation(s)
- A B Becker-Ritt
- Graduate Program in Molecular and Cellular Biology, Center of Biotechnology, Universidade Federal do Rio Grande do Sul-UFRGS, Brazil
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Mangiarotti A, Maurenzig PR, Olmi A, Piantelli S, Bardelli L, Bartoli A, Bini M, Casini G, Coppi C, Gobbi A, Pasquali G, Poggi G, Stefanini AA, Taccetti N, Vanzi E. Energetics of midvelocity emissions in peripheral heavy ion collisions at Fermi energies. Phys Rev Lett 2004; 93:232701. [PMID: 15601152 DOI: 10.1103/physrevlett.93.232701] [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: 05/28/2004] [Indexed: 05/24/2023]
Abstract
Peripheral and semiperipheral collisions have been studied in the system 93Nb+93Nb at 38A MeV. The evaporative and midvelocity components of the light charged particle and intermediate mass fragment emissions have been carefully disentangled. In this way it was possible to obtain the average amount not only of charge and mass, but also of energy, pertaining to the midvelocity emission, as a function of an impact parameter estimator. This emission has a very important role in the overall balance of the reaction, as it accounts for a large fraction of the emitted mass and for more than half of the dissipated energy. As such, it may give precious clues on the microscopic mechanism of energy transport from the interaction zone toward the target and projectile remnants.
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Affiliation(s)
- A Mangiarotti
- Sezione INFN and Università di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino, Italy
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Nocentini M, Fajner D, Pasquali G, Magelli F. Gas-liquid mass transfer and holdup in vessels stirred with multiple Rushton turbines: water and water-glycerol solutions. Ind Eng Chem Res 2002. [DOI: 10.1021/ie00013a003] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Piantelli S, Bidini L, Poggi G, Bini M, Casini G, Maurenzig PR, Olmi A, Pasquali G, Stefanini AA, Taccetti N. Intermediate mass fragment emission pattern in peripheral heavy-ion collisions at Fermi energies. Phys Rev Lett 2002; 88:052701. [PMID: 11863718 DOI: 10.1103/physrevlett.88.052701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2001] [Indexed: 05/23/2023]
Abstract
The emission pattern in the v(perp)-v(par) plane of intermediate mass fragments with Z = 3--7 (IMF) has been studied in the collision 116Sn+ 93Nb at 29.5A MeV as a function of the total kinetic energy loss of the reaction. This pattern shows that for peripheral reactions most IMF's are emitted at velocities intermediate between those of the projectile- and target-like products. Coulomb trajectory calculations show that these IMF's are produced in the interaction zone in a short time interval at the end of the target-projectile interaction.
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Affiliation(s)
- S Piantelli
- Istituto Nazionale di Fisica Nucleare and Università di Firenze, I-50125 Florence, Italy
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Fett-Neto AG, Fett JP, Veira Goulart LW, Pasquali G, Termignoni RR, Ferreira AG. Distinct effects of auxin and light on adventitious root development in Eucalyptus saligna and Eucalyptus globulus. Tree Physiol 2001; 21:625-9. [PMID: 11340046 DOI: 10.1093/treephys/21.9.625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Adventitious rooting is essential for vegetative propagation of woody species. We studied the effects of auxin and light on the development of adventitious roots in cuttings obtained from seedlings of Eucalyptus saligna Smith and E. globulus Labill in an attempt to characterize the adventitious rooting process and identify factors controlling rhizogenesis. Root development was scored as rooting percentage, root density (roots per rooted cutting), mean rooting time and root length. In both species, rooting time was reduced in the presence of auxin. Cuttings from 2-month-old E. saligna seedlings were responsive to lower auxin concentrations than comparable cuttings from E. globulus seedlings. Cuttings from 3-month-old E. saligna seedlings rooted promptly and rooting was not significantly affected by light conditions. In contrast, rooting of cuttings from 3-month-old E. globulus seedlings exhibited recalcitrant behavior and no roots were formed if illuminated during the root formation phase. Effective root regeneration of E. globulus cuttings was obtained by a 4-day exposure to 10 mg l(-1) IBA and culture in darkness during the root formation step. Loss of rooting capacity with seedling age was more pronounced in E. globulus than in E. saligna. The possibility of switching adventitious rooting off and on by manipulating light regime and exogenous auxin supply in E. globulus, and the constitutive nature of rooting in E. saligna may provide useful models for examining the rooting process at the biochemical and molecular levels in Eucalyptus.
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Affiliation(s)
- A G Fett-Neto
- Departamento de Botânica, Laboratório de Fisiologia Vegetal, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves, 9500, Prédio 43423-Bloco 4, CEP 91509-900, Porto Alegre, RS, Brazil
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Fett-Neto AG, Fett JP, Veira Goulart LW, Pasquali G, Termignoni RR, Ferreira AG. Distinct effects of auxin and light on adventitious root development in Eucalyptus saligna and Eucalyptus globulus. Tree Physiol 2001; 21:457-64. [PMID: 11340046 DOI: 10.1093/treephys/21.7.457] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Adventitious rooting is essential for vegetative propagation of woody species. We studied the effects of auxin and light on the development of adventitious roots in cuttings obtained from seedlings of Eucalyptus saligna Smith and E. globulus Labill in an attempt to characterize the adventitious rooting process and identify factors controlling rhizogenesis. Root development was scored as rooting percentage, root density (roots per rooted cutting), mean rooting time and root length. In both species, rooting time was reduced in the presence of auxin. Cuttings from 2-month-old E. saligna seedlings were responsive to lower auxin concentrations than comparable cuttings from E. globulus seedlings. Cuttings from 3-month-old E. saligna seedlings rooted promptly and rooting was not significantly affected by light conditions. In contrast, rooting of cuttings from 3-month-old E. globulus seedlings exhibited recalcitrant behavior and no roots were formed if illuminated during the root formation phase. Effective root regeneration of E. globulus cuttings was obtained by a 4-day exposure to 10 mg l(-1) IBA and culture in darkness during the root formation step. Loss of rooting capacity with seedling age was more pronounced in E. globulus than in E. saligna. The possibility of switching adventitious rooting off and on by manipulating light regime and exogenous auxin supply in E. globulus, and the constitutive nature of rooting in E. saligna may provide useful models for examining the rooting process at the biochemical and molecular levels in Eucalyptus.
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Affiliation(s)
- A G Fett-Neto
- Departamento de Botânica, Laboratório de Fisiologia Vegetal, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves, 9500, Prédio 43423-Bloco 4, CEP 91509-900, Porto Alegre, RS, Brazil
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Pasquali G, Erven AS, Ouwerkerk PB, Menke FL, Memelink J. The promoter of the strictosidine synthase gene from periwinkle confers elicitor-inducible expression in transgenic tobacco and binds nuclear factors GT-1 and GBF. Plant Mol Biol 1999; 39:1299-310. [PMID: 10380815 DOI: 10.1023/a:1006177414456] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Strictosidine synthase (STR) is a key enzyme in the biosynthesis of terpenoid indole alkaloids. This class of secondary metabolites harbours several pharmaceutically important compounds used, among other applications, in cancer treatment. Terpenoid indole alkaloid biosynthesis and expression of biosynthetic genes including Str1 is induced by fungal elicitors. To identify elicitor-responsive regulatory promoter elements and trans-acting factors, the single-copy Str1 gene was isolated from the subtropical plant species Catharanthus roseus (Madagascar periwinkle). Str1 upstream sequences conferred elicitor-responsive expression to the beta-glucuronidase (gusA) reporter gene in transgenic tobacco plants. Main enhancer sequences within the Str1 promoter region studied were shown to be located between -339 and -145. This region and two other regions of the promoter bound the tobacco nuclear protein factor GT-1. A G-box located around position -105 bound nuclear and cloned G-box-binding factors (GBFs). A mutation that knocked out GBF binding had no measurable effect on expression, which indicates that the G-box is not essential for the elicitor responsiveness of the Str1 promoter. No obvious homologies with promoter elements identified in other elicitor-responsive genes were observed, suggesting that the Str1 gene may depend on novel regulatory mechanisms.
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MESH Headings
- Base Sequence
- Carbon-Nitrogen Lyases/genetics
- Cell Extracts/pharmacology
- Cloning, Molecular
- DNA Footprinting
- DNA Probes
- DNA-Binding Proteins/metabolism
- Enhancer Elements, Genetic/genetics
- G-Box Binding Factors
- Gene Expression Regulation, Plant/drug effects
- Genes, Plant/genetics
- Genes, Reporter
- Magnoliopsida/enzymology
- Magnoliopsida/genetics
- Molecular Sequence Data
- Nuclear Proteins/metabolism
- Plant Leaves/drug effects
- Plant Leaves/genetics
- Plants, Genetically Modified
- Plants, Toxic
- Promoter Regions, Genetic/genetics
- RNA, Messenger/analysis
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Response Elements/genetics
- Sequence Deletion
- Nicotiana/drug effects
- Nicotiana/genetics
- Trans-Activators/metabolism
- Transcription Factors/metabolism
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Affiliation(s)
- G Pasquali
- Institute of Molecular Plant Sciences, Clusius Laboratory, Leiden, Netherlands
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Canel C, Lopes-Cardoso MI, Whitmer S, van der Fits L, Pasquali G, van der Heijden R, Hoge JH, Verpoorte R. Effects of over-expression of strictosidine synthase and tryptophan decarboxylase on alkaloid production by cell cultures of Catharanthus roseus. Planta 1998; 205:414-9. [PMID: 9640666 DOI: 10.1007/s004250050338] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Cells of Catharanthus roseus (L.) G. Don were genetically engineered to over-express the enzymes strictosidine synthase (STR; EC 4.3.3.2) and tryptophan decarboxylase (TDC; EC 4.1.1.28), which catalyze key steps in the biosynthesis of terpenoid indole alkaloids (TIAs). The cultures established after Agrobacterium-mediated transformation showed wide phenotypic diversity, reflecting the complexity of the biosynthetic pathway. Cultures transgenic for Str consistently showed tenfold higher STR activity than wild-type cultures, which favored biosynthetic activity through the pathway. Two such lines accumulated over 200 mg.L-1 of the glucoalkaloid strictosidine and/or strictosidine-derived TIAs, including ajmalicine, catharanthine, serpentine, and tabersonine, while maintaining wild-type levels of TDC activity. Alkaloid accumulation by highly productive transgenic lines showed considerable instability and was strongly influenced by culture conditions, such as the hormonal composition of the medium and the availability of precursors. High transgene-encoded TDC activity was not only unnecessary for increased productivity, but also detrimental to the normal growth of the cultures. In contrast, high STR activity was tolerated by the cultures and appeared to be necessary, albeit not sufficient, to sustain high rates of alkaloid biosynthesis. We conclude that constitutive over-expression of Str is highly desirable for increased TIA production. However, given its complexity, limited intervention in the TIA pathway will yield positive results only in the presence of a favorable epigenetic environment.
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Affiliation(s)
- C Canel
- Division of Pharmacognosy, Gorlaeus Laboratories, Leiden University, The Netherlands.
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Vannuccini L, Rossi M, Pasquali G. A new method to detect crackles in respiratory sounds. Technol Health Care 1998; 6:75-9. [PMID: 9754686] [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: 02/08/2023]
Abstract
In this paper, an automatic method to detect and analyze crackles in digitised respiratory sounds is presented. The method is based on two steps: (1) a threshold (T) value is applied to the first derivative absolute value (FDAV) of lung sound to locate the "zone of interest" and (2) in this zone a crackle is detected if certain conditions are verified. The first derivative (FD) is evaluated by means of a derivative-smoothing filter, preserving areas under the spectral lines of the signal (moment zero), its mean position in time (first moment) and its spectral line width (second moment). The conditions to verify step 2 concern the following: the number and height of the peaks of FDAV and their distances from the starting point of the crackle, within a temporal window TW. This method shows good performances as an automatic detector (sensitivity 84% and specificity 89%), and is specifically designed to find the starting point of the crackle.
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Affiliation(s)
- L Vannuccini
- Department of Chemistry, University of Siena, Italy.
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Hallard D, van der Heijden R, Verpoorte R, Cardoso MIL, Pasquali G, Memelink J, Hoge JHC. Suspension cultured transgenic cells of Nicotiana tabacum expressing tryptophan decarboxylase and strictosidine synthase cDNAs from Catharanthus roseus produce strictosidine upon secologanin feeding. Plant Cell Rep 1997; 17:50-54. [PMID: 30732419 DOI: 10.1007/s002990050350] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A transgenic cell suspension culture of Nicotiana tabacum L. `Petit Havana' SR1 was established expressing tryptophan decarboxylase and strictosidine synthase cDNA clones from Catharanthus roseus (L.) G. Don under the direction of cauliflower mosaic virus 35S promoter and nopaline synthase terminator sequences. During a growth cycle, the transgenic tobacco cells showed relatively constant tryptophan decarboxylase activity and an about two- to sixfold higher strictosidine synthase activity, enzyme activities not detectable in untransformed tobacco cells. The transgenic culture accumulated tryptamine and produced strictosidine upon feeding of secologanin, demonstrating the in vivo functionality of the two transgene-encoded enzymes. The accumulation of strictosidine, which occurred predominantly in the medium, could be enhanced by feeding both secologanin and tryptamine. No strictosidine synthase activity was detected in the medium, indicating the involvement of secologanin uptake and strictosidine release by the cells.
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Affiliation(s)
- D Hallard
- Division of Pharmacognosy, Leiden/ Amsterdam Center for Drug Research, Leiden University, Gorlaeus Laboratories, PO Box 9502, 2300 RA Leiden, The Netherlands Fax no.: +31-71-527-45-11 e-mail: , , , , , , NL
| | - R van der Heijden
- Division of Pharmacognosy, Leiden/ Amsterdam Center for Drug Research, Leiden University, Gorlaeus Laboratories, PO Box 9502, 2300 RA Leiden, The Netherlands Fax no.: +31-71-527-45-11 e-mail: , , , , , , NL
| | - R Verpoorte
- Division of Pharmacognosy, Leiden/ Amsterdam Center for Drug Research, Leiden University, Gorlaeus Laboratories, PO Box 9502, 2300 RA Leiden, The Netherlands Fax no.: +31-71-527-45-11 e-mail: , , , , , , NL
| | - M I Lopes Cardoso
- Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, PO Box 9505, 2300 RA Leiden, The Netherlands, , , , , , NL
| | - G Pasquali
- Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, PO Box 9505, 2300 RA Leiden, The Netherlands, , , , , , NL
| | - J Memelink
- Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, PO Box 9505, 2300 RA Leiden, The Netherlands, , , , , , NL
| | - J H C Hoge
- Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, PO Box 9505, 2300 RA Leiden, The Netherlands, , , , , , NL
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Dzelalija M, Cindro N, Basrak Z, Caplar R, Hölbling S, Bini M, Maurenzig PR, Olmi A, Pasquali G, Poggi G, Taccetti N, Cerruti C, Coffin JP, Don R, Fintz P, Guillaume G, Houari A, Jundt F, Kuhn C, Rami F, Tezkratt R, Wagner P, Biegansky J, Kotte R, Mösner J, Neubert W, Wohlfarth D, Alard JP, Amouroux V, Bastid N, Berger L, Belayev IM, Boussange S, Buta A, Dupieux P, Erö J, Fodor Z, Fraysse L, Gobbi A, Herrmann N, Hildenbrand KD, Ibnouzahir M, Kecskemeti J, Koncz P, Korchagin Y, Krämer M, Lebedev A, Legrand I, Manko V, Mgebrishvili G, Moisa D, Montarou G, Montbel I, Pelte D, Petrovici M, Pras P, Ramillien V, Reisdorf W, Schüll D, Seres Z, Sikora B, Simion V, Smolyankin S, Sodan U. Entropy in central Au+Au reactions between 100 and 400A MeV. Phys Rev C Nucl Phys 1995; 52:346-355. [PMID: 9970514 DOI: 10.1103/physrevc.52.346] [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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Abstract
A convenient vector system was developed to evaluate transcriptional promoter activities in plants. Two primary vectors, optionally containing the cauliflower mosaic virus (CaMV) 35S -47 or -90 minimal promoters, offer multiple sites for cloning the sequence of interest upstream from the beta-glucuronidase gene (gusA). The promoter-gusA cassette can be transferred to a binary vector containing the selectable neomycin phosphotransferase II-encoding gene (nptII) next to the left border. In addition, the transferred DNA (T-DNA) contains the chloramphenicol acetyltransferase gene (cat) driven by the CaMV 35S promoter. Activity of cat can serve as a reference for gusA expression to correct for effect of chromosomal position or T-DNA copy number.
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Affiliation(s)
- G Pasquali
- Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, The Netherlands
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Jeong SC, Herrmann N, Fan ZG, Freifelder R, Gobbi A, Hildenbrand KD, Krämer M, Randrup J, Reisdorf W, Schüll D, Sodan U, Teh K, Wessels JP, Pelte D, Trzaska M, Wienold T, Alard JP, Amouroux V, Basrak Z, Bastid N, Belayev IM, Berger L, Bini M, Blaich T, Boussange S, Buta A, Caplar R, Cerruti C, Cindro N, Coffin JP, Dona R, Dupieux P, Erö J, Fintz P, Fodor Z, Fraysse L, Frolov S, Grigorian Y, Guillaume G, Hölbling S, Houari A, Jundt F, Kecskemeti J, Koncz P, Korchagin Y, Kotte R, Kuhn C, Ibnouzahir M, Legrand I, Lebedev A, Maguire C, Manko V, Maurenzig P, Mgebrishvili G, Mösner J, Moisa D, Montarou G, Montbel I, Morel P, Neubert W, Olmi A, Pasquali G, Petrovici M, Poggi G. Collective motion in selected central collisions of Au on Au at 150A MeV. Phys Rev Lett 1994; 72:3468-3471. [PMID: 10056207 DOI: 10.1103/physrevlett.72.3468] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Rossi M, Pasquali G, Barnabe R, Rottoli P, Ottomano S, Solitro S, Vagliasindi M. Phonopneumographic findings in patients with sarcoidosis and lung fibrosis. Sarcoidosis 1993; 10:156-7. [PMID: 8140311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- M Rossi
- Respiratory Physiopathology Unit, Siena, Italy
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Alard JP, Basrak Z, Bastid N, Belayev IM, Bini M, Blaich T, Bock R, Buta A, Caplar R, Cerruti C, Cindro N, Coffin JP, Crouau M, Dupieux P, Erö J, Fan ZG, Fintz P, Fodor Z, Freifelder R, Fraysse L, Frolov S, Gobbi A, Grigorian Y, Guillaume G, Herrmann N, Hildenbrand KD, Hölbling S, Houari O, Jeong SC, Jorio M, Jundt F, Kecskemeti J, Koncz P, Korchagin Y, Kotte R, Krämer M, Kuhn C, Legrand I, Lebedev A, Maguire C, Manko V, Matulewicz T, Mgebrishvili G, Mösner J, Moisa D, Montarou G, Morel P, Neubert W, Olmi A, Pasquali G, Pelte D, Petrovici M, Poggi G, Rami F, Reisdorf W, Sadchikov A, Schüll D, Seres Z, Sikora B, Simion V, Smolyankin S, Sodan U, Taccetti N, Teh K. Midrapidity source of intermediate-mass fragments in highly central collisions of Au + Au at 150A MeV. Phys Rev Lett 1992; 69:889-892. [PMID: 10047061 DOI: 10.1103/physrevlett.69.889] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Pasquali G, Goddijn OJ, de Waal A, Verpoorte R, Schilperoort RA, Hoge JH, Memelink J. Coordinated regulation of two indole alkaloid biosynthetic genes from Catharanthus roseus by auxin and elicitors. Plant Mol Biol 1992; 18:1121-31. [PMID: 1600148 DOI: 10.1007/bf00047715] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Catharanthus roseus (periwinkle) produces a wide range of terpenoid indole alkaloids, including several pharmaceutically important compounds, from the intermediate strictosidine. The complete mRNA sequence for the enzyme strictosidine synthase (SSS) was determined. Comparison of the primary structure of the encoded protein with the amino-terminal sequence of purified SSS indicated the presence of a signal peptide of 31 amino acids in the putative primary translation product. SSS is encoded by a single-copy gene indicating that isoenzymes reported by others are formed post-translationally from a single precursor. The sss gene and the tryptophan decarboxylase gene (tdc), encoding another enzyme essential for indole alkaloid biosynthesis, are coordinately regulated. In plants steady-state mRNA levels are highest in roots. In cell suspension cultures the genes are rapidly down-regulated by auxin. In contrast, both genes are strongly induced by fungal elicitors such as Pythium aphanidermatum culture filtrate or yeast extract. Induction is a rapid, transcriptional event occurring independent of de novo protein synthesis. These results show that a first important regulatory step in the complex process leading to indole alkaloid accumulation in C. roseus suspension cells is transcription of the biosynthetic genes.
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Affiliation(s)
- G Pasquali
- Biotechnology Delft-Leiden, Project Group Plant Cell Biotechnology, Leiden University, Netherlands
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Stucky G, Putnik C, Kelber J, Schaffman MJ, Salamon MB, Pasquali G, Schultz AJ, Williams J, Cornish TF, Washecheck DM, Johnson PL. PHYSICAL AND STRUCTURAL PROPERTIES OF TWO CONDUCTING ONE-DIMENSIONAL MATERIALS: GUANIDINIUM (GCP) TETRACYANOPLATINATE BROMIDE HYDRATE AND BARIUM VANADIUM TRISULFIDE. Ann N Y Acad Sci 1978. [DOI: 10.1111/j.1749-6632.1978.tb39444.x] [Citation(s) in RCA: 6] [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: 11/29/2022]
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