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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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Ravaglia V, Angelini L, Bertolini M, Della Gala G, Fabbri C, Fabbri S, Farnedi S, Vacchieri I, Guerra G, Lorenzini E, Mazzocchi S, Niespolo A, Ortenzia O, Pagan L, Quattrocchi M, Savini A, Scrittori N, Venturi G, Golinelli P. Average glandular dose in digital breast tomosynthesis systems: a multicenter study. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00239-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Lorenzini E, Bonini R, Barone S, Bertolaccini P, Tofani A. 312. Acceptance protocol for a dedicated cardiac gamma camera. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.321] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Talamonti C, Russo S, Barone TL, Benecchi G, Borzi G, Bresciani S, Cagni E, Carbonino C, Casale M, Clemente S, Consorti R, D’Alessio V, Dicastro E, Donofrio G, Falco M, Fedele D, Fiandra C, Frassanito C, Gasperi C, Giglioli F, Iervolino C, Infusino E, Linsalata S, Loi G, Lorenzini E, Marino C, Martinotti S, Masi L, Menghi E, Miceli R, Moretti E, Nardiello B, Nigro R, Pastore G, Pressello M, Pimpinella M, Raza G, Rosica F, Ruggeri R, Spiazzi L, Stasi M, Strigari L, Tremolada V, Vaiano A, Vigorito S, Villaggi E, Vittorini F, Mancosu P. Small beam dosimetry: A multi-center multi-detector italian project. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.291] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Giglioli F, Ragona R, Fiandra C, Pastore G, Landoni V, Borzì G, Menghi E, Villaggi E, Carbonini C, Zani M, Lorenzini E, Malisan M, Redaelli I, Loi G, Ravaglia V, Fedele D, Nigro R, Nardiello B, Frassanito C, Falco M, Cagni E, Ruggieri R, Consorti R, El Gawhary R, Mancosu P. EP-1471: Lung SABR: radiobiological multi planning comparison in a perspective of a multi-institutional study. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41463-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tagliagambe A, Torri T, Tofani A, Piacentini G, Marchetti V, Luxardo S, Marcozzi G, Lorenzini E, Pepe V, Timmerman R. Phase 1 Study of Stereo-Ablative Radiation Therapy With the Use of SpaceOAR Hydrogel as Definitive Treatment of Prostate Cancer: Preliminary Experience. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.971] [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: 11/28/2022]
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Saltini G, Proverbio MC, Malferrari G, Biagiotti L, Boettcher P, Dominici R, Monferini E, Lorenzini E, Cattaneo M, Antonello D, Moore PS, Zamproni I, Viscardi M, Chiumello G, Biunno I. Identification of a novel polymorphism in the fibronectin type II domain of the SEL1L gene and possible relation to the persistent hyperinsulinemic hypoglycemia of infancy. Mutat Res 2004; 554:159-63. [PMID: 15450414 DOI: 10.1016/j.mrfmmm.2004.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 01/08/2004] [Revised: 04/22/2004] [Accepted: 04/22/2004] [Indexed: 04/30/2023]
Abstract
SEL1L, a human gene located on chromosome 14q24.3-q31, is highly expressed in adult pancreas. It is proximal to D14S67 (IDDM11) a proposed type I diabetes susceptibility locus. Considering the organ specific expression of SEL1L, a fundamental role of SEL1L in pancreatic growth can be hypothesized. While screening for mutations in young diabetic patients, in children affected by persistent hyperinsulinemic hypoglycemia of infancy (PHHI), in patients with non-functional endocrine tumours and in over 100 control subjects, we identified a novel polymorphism (D162G) residing on the fourth exon of the gene. This exon encodes for the fibronectin type II domain and the nucleotide change involves a highly conserved amino acid. The D162G polymorphism induces a major change in the amino acid composition producing a possible disruptive role in collagen binding.
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Affiliation(s)
- G Saltini
- Centre for Bio-molecular Interdisciplinary Studies and Industrial applications, University of Milan, Italy
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Paolicchi A, Sotiropuolou M, Perego P, Daubeuf S, Visvikis A, Lorenzini E, Franzini M, Romiti N, Chieli E, Leone R, Apostoli P, Colangelo D, Zunino F, Pompella A. gamma-Glutamyl transpeptidase catalyses the extracellular detoxification of cisplatin in a human cell line derived from the proximal convoluted tubule of the kidney. Eur J Cancer 2003; 39:996-1003. [PMID: 12706370 DOI: 10.1016/s0959-8049(03)00067-4] [Citation(s) in RCA: 45] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nephrotoxicity is a side-effect and the main factor limiting the clinical use of cisplatin. In vivo, the administration of the cysteine-containing tripeptide glutathione (GSH) has been found to reduce nephrotoxicity, but the biochemical mechanism of this protective action is not fully understood. The present study was designed to gain insights into the mechanism by which GSH prevents cisplatin nephrotoxicity. We also wanted to verify the hypothesis of whether the protective action of GSH is mediated by products of the extracellular breakdown of GSH catalysed by gamma-glutamyl transpeptidase (GGT), an enzyme that is highly expressed in kidney tubular cells. The study was performed in HK-2 cells, derived from the immortalisation of human kidney proximal tubule cells. We investigated the influence of modulators of GGT activity and/or thiols on the antiproliferative activity of cisplatin and on the intracellular GSH content. We determined the antiproliferative activity of cisplatin, platinum cellular accumulation and DNA platination following precomplexing of the drug with thiols. The antiproliferative effect of cisplatin was minimally affected by the addition of GSH. However, when the antiproliferative assay was performed in the presence of glycyl-glycine (GlyGly), to serve as a transpeptidation acceptor and thus to stimulate GGT-mediated GSH catabolism, cisplatin-induced growth inhibition was largely prevented. This effect was not mediated through an increase of intracellular GSH levels, which were not affected by the GlyGly supplementation. The thiol dipeptide cysteinyl-glycine, i.e. the GSH catabolite generated by GGT activity, showed a higher reactivity against cisplatin in vitro than GSH, as was shown by the more rapid oxidation of its -SH groups. The cisplatin/GSH or cisplatin/cysteinyl-glycine adducts did not display an antiproliferative effect. However, 2 h precomplexing with GSH in the presence of GGT, or directly with the GSH catabolite cysteinyl-glycine, decreased the antiproliferative effect of cisplatin and drug-induced DNA platination to a greater extent than precomplexing with GSH alone. The results of the present study show that, in HK-2 cells, extracellular GSH decreases the antiproliferative effects of cisplatin only upon its hydrolysis by GGT, thereby supporting the hypothesis that the extracellular metabolism of GSH by GGT plays a role in modulating cisplatin nephrotoxicity. A primary role in the protection of HK-2 cells appears to be played by cysteinyl-glycine, the proximal product of the GGT-mediated hydrolysis of GSH, which shows a high reactivity against CDDP resulting in the rapid inactivation of the drug.
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Affiliation(s)
- A Paolicchi
- Dipartimento di Patologia Sperimentale, sez. Patologia Generale e Clinica, Università di Pisa, via Roma 55, Pisa, Italy
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Maellaro E, Dominici S, Del Bello B, Valentini MA, Pieri L, Perego P, Supino R, Zunino F, Lorenzini E, Paolicchi A, Comporti M, Pompella A. Membrane gamma-glutamyl transpeptidase activity of melanoma cells: effects on cellular H(2)O(2) production, cell surface protein thiol oxidation and NF-kappa B activation status. J Cell Sci 2000; 113 ( Pt 15):2671-8. [PMID: 10893182 DOI: 10.1242/jcs.113.15.2671] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The metabolism of glutathione by membrane-bound γ-glutamyl transpeptidase (GGT) has been recently recognized as a basal source of hydrogen peroxide in the extracellular space. Significant levels of GGT activity are expressed by malignant tumours, and in melanoma cell lines they were found to correlate with the malignant behaviour. As hydrogen peroxide and other oxidants can affect signal transduction pathways at several levels, the present study was aimed to verify: (i) the occurrence of GGT-dependent production of hydrogen peroxide in melanoma cells; (ii) the effects of GGT-dependent prooxidant reactions on known redox-sensitive cellular targets, i.e. protein thiols, the nuclear transcription factor NF-kappa B and p53. Two melanoma Me665/2 cell clones, exhibiting traces of (clone 2/21) or high (clone 2/60) GGT activity, were studied. The occurrence of GGT-dependent production of hydrogen peroxide was apparent in 2/60 cells, in which it was accompanied by lower levels of cell surface protein thiols. In 2/60 cells, GGT expression was also associated with higher levels of NF-kappa B activation, as compared to GGT-poor 2/21 cell clone. Indeed, stimulation or inhibition of GGT activity in 2/60 cells resulted in progressive activation or inactivation of NF-kappa B, respectively. An analysis of the p53 gene product indicated lack of protein expression in 2/60 cells, whereas a mutant protein was highly expressed in 2/21 cells. Taken together, these results indicate that the expression of GGT activity can provide melanoma cells with an additional source of hydrogen peroxide, and that such prooxidant reactions are capable to modify protein thiols at the cell surface level. In addition, GGT expression results in an up-regulation of the transcription factor NF-kappa B, which could explain the higher metastatic behaviour reported for GGT-rich melanoma cells as compared to their GGT-poor counterparts.
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Affiliation(s)
- E Maellaro
- Department of Pathophysiology & Experimental Medicine, University of Siena, Italy
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Dominici S, Valentini M, Maellaro E, Del Bello B, Paolicchi A, Lorenzini E, Tongiani R, Comporti M, Pompella A. Redox modulation of cell surface protein thiols in U937 lymphoma cells: the role of gamma-glutamyl transpeptidase-dependent H2O2 production and S-thiolation. Free Radic Biol Med 1999; 27:623-35. [PMID: 10490284 DOI: 10.1016/s0891-5849(99)00111-2] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.2] [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] [Indexed: 12/19/2022]
Abstract
The expression of gamma-glutamyl transpeptidase (GGT), a plasma membrane ectoenzyme involved in the metabolism of extracellular reduced glutathione (GSH), is a marker of neoplastic progression in several experimental models, and occurs in a number of human malignant neoplasms and their metastases. Because it favors the supply of precursors for the synthesis of GSH, GGT expression has been interpreted as a member in cellular antioxidant defense systems. However, thiol metabolites generated at the cell surface during GGT activity can induce prooxidant reactions, leading to production of free radical oxidant species. The present study was designed to characterize the prooxidant reactions occurring during GGT ectoactivity, and their possible effects on the thiol redox status of proteins of the cell surface. Results indicate that: (i) in U937 cells, expressing significant amounts of membrane-bound GGT, GGT-mediated metabolism of GSH is coupled with the extracellular production of hydrogen peroxide; (ii) GGT activity also results in decreased levels of protein thiols at the cell surface; (iii) GGT-dependent decrease in protein thiols is due to sulfhydryl oxidation and protein S-thiolation reactions; and (iv) GGT irreversible inhibition by acivicin is sufficient to produce an increase of protein thiols at the cell surface. Membrane receptors and transcription factors have been shown to possess critical thiols involved in the transduction of proliferative signals. Furthermore, it was suggested that S-thiolation of cellular proteins may represent a mechanism for protection of vulnerable thiols against irreversible damage by prooxidant agents. Thus, the findings reported here provide additional explanations for the envisaged role played by membrane-bound GGT activity in the proliferative attitude of malignant cells and their resistance to prooxidant drugs and radiation therapy.
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Affiliation(s)
- S Dominici
- Institute of General Pathology, University of Siena, Italy
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Marangoni R, Cubeddu R, Taroni P, Valentini G, Sorbi R, Lorenzini E, Colombetti G. Microspectrofluorometry, fluorescence imaging and confocal microscopy of an endogenous pigment of the marine ciliate Fabrea salina. Journal of Photochemistry and Photobiology B: Biology 1996. [DOI: 10.1016/1011-1344(96)07290-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
Five N'Dama heifers were superovulated with follicle stimulating hormone (FSH-P or Folltropin) a total of six times each. The superovulations were carried out between ongoing experimental Trypanosoma congolense infections. Twenty-four (80%) of the 30 superovulations had a good ovarian response with 21 (70%) producing an average of 2.7 +/- 0.4 (mean +/- s.e.m.) embryos. The highest embryo production was achieved at the third and fourth superovulation, after which both the number of embryos and their quality declined. The overall pregnancy rate after transfer into Boran (Bos indicus) cow recipients was 50.9%. The uteri of the heifers increased considerably in size throughout the six superovulations which made it difficult to flush some of the animals after the third superovulation. Embryo transfer technology is a useful breeding tool in N'Dama heifers and multiple superovulations can be carried out with success.
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Affiliation(s)
- T Jordt
- International Laboratory for Research on Animal Diseases, Nairobi, Kenya
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Jordt T, Lorenzini E. Superovulation, collection and transfer of embryos and demi-embryos from Boran(Bos indicus ) cows and heifers. Theriogenology 1988; 30:355-67. [PMID: 16726476 DOI: 10.1016/0093-691x(88)90183-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/1987] [Accepted: 05/18/1988] [Indexed: 10/26/2022]
Abstract
Twenty-three Boran(Bos indicus ) cows and heifers were superovulated with pregnant mare serum gonadotropin (PMSG); a total of four embryos and 4.1 +/- 0.3 (mean +/- SEM) ova per ova-producing donor resulted. Follicle stimulating hormone (FSH-P) was then used to superovulate 49 Boran cows for a total of 106 superovulations, of which 63 (59.4%) produced an average of 3.7 +/- 0.4 (mean +/- SEM) embryos. The embryo production was not influenced by either the season or the number of times(one to five) the cows were superovulated. A higher pregnancy rate was obtained when the selection of Boran recipients was based on their plasma-progesterone values (overall 52.5%, single embryos 63.3%, twin demi-embryos 45.8%) than when they were selected by palpation per rectum only (overall 43.8%, single embryos 50%, twin demi-embryos 36.4%). The twinning rate of twin demiembryos was 62.5%, whereas only single calves were born after transfer of two embryos per recipient. No pregnancies were produced following transfer of twin demi-embryos without zonae pellucidae. Transferring single demi-embryos gave a low pregnancy rate (13.3%). Twelve donor Boran cows (21 superovulations) bred with their fathers resulted in a high rate of early embryonic death; additionally, only 20.9% (overall) of the recipients became pregnant. Estrus synchronization of Boran cows with a progesterone releasing intravaginal device (PRID) for a short period (7 d) combined with one injection of prostaglandin (Day 6) produced a larger number of good quality recipients (70.5%) than using double prostaglandin injections (60%).
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Affiliation(s)
- T Jordt
- International Laboratory for Research on Animal Diseases P.O. Box 30709, Nairobi, Kenya
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Llewelyn CA, Munro CD, Luckins AG, Jordt T, Murray M, Lorenzini E. The effects of Trypanosoma congolense infection on the oestrous cycle of the Boran cow. Br Vet J 1988; 144:379-87. [PMID: 3167553 DOI: 10.1016/0007-1935(88)90069-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Scalabrino G, Ferioli ME, Lorenzini E, Candiani R. Abnormalities of polyamine biosynthesis in spinal cord of totally gastrectomized rats. Adv Exp Med Biol 1988; 250:365-78. [PMID: 3255233 DOI: 10.1007/978-1-4684-5637-0_32] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- G Scalabrino
- Institute of General Pathology, University of Milan, Italy
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Llewelyn CA, Munro CD, Luckins AG, Jordt T, Murray M, Lorenzini E. Behavioural and ovarian changes during the oestrous cycle in the Boran (Bos indicus). Br Vet J 1987; 143:75-82. [PMID: 3828755 DOI: 10.1016/0007-1935(87)90109-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Lorenzini E, Spiga M, Corticelli M. Thermal analysis of the heat exchanger for a spent nuclear fuel storage pool. ANN NUCL ENERGY 1987. [DOI: 10.1016/0306-4549(87)90067-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lorenzini E, Spiga M, Corticelli M. Accident analysis in LMFBR fuel rods by the fenht code. ANN NUCL ENERGY 1985. [DOI: 10.1016/0306-4549(85)90123-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ottoboni F, Falagiani P, Lorenzini E, Più G, Carluccio A, Centanni S. [Domestic Acari in Sardinia]. Boll Ist Sieroter Milan 1983; 62:362-369. [PMID: 6661294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In Sardinia, a great Mediterranean island, house dust mites allergy is very spread. This investigation was carried out to determine the species, occurrence and abundance of mites in the house dust of sensitized subjects. 55 samples of house dust were examined and the mites fauna identified. Dermatophagoides pteronyssinus was the most abundant (54% of the found mites), and the most frequent mite (94.5%). Two others pyroglyphid species were recovered: Dermatophagoides farinae and Euroglyphus maynei that were common in Sardinian house dusts. The frequency with which E. maynei was found in this region (50%) suggests that he may well be an important cause of allergy in this region underestimated. Several species of storage mites were common in house dust, chiefly Glycyphagid and Acarid species, that have been shown to provoke strong reactions in sensitized subjects. The Mediterranean climate, and its effect on the physical conditions within the house, and the personal life style of the inhabitants are the most important factors associated with high mite numbers in Sardinian house dust.
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Battaglino GC, Lorenzini E. [Therapeutic possibilities of the use of structural neurophospholipids in premature infants. (Clinical evaluation of neurologic function at the end of 1st semester of life)]. Minerva Pediatr 1972; 24:762-6. [PMID: 5029626] [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: 01/13/2023]
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23
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Lorenzini E. [Cytomegalic inclusion disease]. Fracastoro 1971; 64:56-60. [PMID: 4328540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Orlandi P, Buffatti G, Lorenzini E, Battaglino G, Castellarin T. [Rhabdomyoma of the heart with tuberous sclerosis of the brain and micropolycystic kidney in an infant]. Fracastoro 1970; 63:740-9. [PMID: 5519375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Orlandi P, Lorenzini E, Castellarin T. [Plurimalformative syndrome in trisomy 18]. Fracastoro 1970; 63:81-87. [PMID: 5477742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Cavalieri S, Lorenzini E, Orlandi P. [A case of the uremic-hemolytic syndrome]. Fracastoro 1968; 61:740-7. [PMID: 5738136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Battaglino G, Cavalieri S, Lorenzini E. [Carcinoma of the liver, hemolytic anemia, acanthocytosis with hyperlipemia in an infant]. Fracastoro 1968; 61:729-39. [PMID: 5738135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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28
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Lorenzini E. [Transitory neonatal lactose intolerance]. Fracastoro 1968; 61:489-500. [PMID: 5707400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Cavalieri S, Battaglino G, Lorenzini E. [Pyknodysostosis]. Fracastoro 1967; 60:736-41. [PMID: 5617714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Cavalieri S, Battaglino G, Lorenzini E. [Winckel's disease]. Fracastoro 1967; 60:520-525. [PMID: 5616372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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31
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Battaglino G, Lorenzini E. [Acrocephalosyndactylia. (Apert's syndrome)]. Fracastoro 1967; 60:243-9. [PMID: 5303727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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32
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Mastella G, Orlandi P, Garofalo E, Lorenzini E. [Methemoglobinemia and hemolytic anemia caused by para-aminosalicylic acid (PAS) infusion therapy]. Fracastoro 1966; 59:702-16. [PMID: 5301822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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