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Lodi Rizzini E, Zanoni L, Tabacchi E, Repaci A, Scampoli C, Vallerossa D, Laghi V, Cavallini L, Razganiayeva N, Cardano R, Scirocco E, Cammelli S, Frezza G, Morganti A, Fanti S, Monari F. PO-1023 Impact of 18F-FDG-PET/CT in the management of suspected RAI refractory DTC persistence/recurrence. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07474-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lodi Rizzini E, Allegri V, Zanoni L, Tabacchi E, Laghi V, Strigari L, Repaci A, Scampoli C, Vallerossa D, Deraco E, Cavallini L, Bertini F, Cammelli S, Frezza G, Morganti A, Fanti S, Monari F. PO-1027 Radioiodine therapy guided by 124I-PET/CT in metastatic DTC: long-term follow-up data. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07478-8] [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: 10/20/2022]
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3
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Serenari M, Pettinato C, Bonatti C, Zanoni L, Odaldi F, Cucchetti A, Ravaioli M, Fanti S, Pinna A, Cescon M. Hepatobiliary Scintigraphy in the Preoperative Evaluation of Potential Living Liver Donors. Transplant Proc 2019; 51:167-170. [DOI: 10.1016/j.transproceed.2018.04.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 04/13/2018] [Indexed: 12/12/2022]
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Bodini A, Tenero L, Sandri M, Maffeis C, Piazza M, Zanoni L, Peroni D, Boner A, Piacentini G. Serum and exhaled breath condensate leptin levels in asthmatic and obesity children: a pilot study. J Breath Res 2017; 11:046005. [PMID: 28952460 DOI: 10.1088/1752-7163/aa61c5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Recent studies have highlighted the possible involvement of leptin in inflammation. The leptin receptor is also expressed by alveolar macrophages, T lymphocytes and bronchial epitelial cells, suggesting a possible role in the cascade of airway inflammation. OBJECTIVES The aim of the study was to evaluate the levels of leptin in exhaled breath condensate (EBC) from asthmatic, normal- and overweight children, in relationship with airway inflammation. METHODS 15 asthmatic non-obese children, 15 healthy non-asthmatic non-obese children, 11 obese children with asthma (OA) and 20 obese children without asthma (ONA) were enrolled. Body impedance of body weight, EBC collection, FeNO, spirometry and a blood sampling for serum leptin were assessed. RESULTS Leptin EBC levels were significantly higher (3.9 ng ml-1 ± 1.3) in overweight children than those obese with asthma (3.6 ng ml-1 ± 1.6; p = 0.97), non-owerweight asthmatics (2.2 ng ml-1 ± 1.2; p < 0.0001) and in healthy children (0.9 ng ml-1 ± 0.6; p < 0.001). Leptin EBC levels in asthmatic children were significantly higher than in healthy children (p = 0.05). Leptin serum levels were significantly higher in the overweight children compared with the asthmatics (12.7 ng ml-1 ± 13.2; p < 0.001) and the healthy group (11.1 ng ml-1 ± 11.2; p < 0.001). We observed a significant correlation between EBC-leptin levels and the serum-leptin levels (p = 0.001). No correlations were found between EBC-leptin levels, FeNO and lung function. CONCLUSIONS This study shows that leptin is measurable in EBC in children and that EBC-leptin levels are significantly higher in the obese subjects and in asthmatic ones compared with healthy subjects. Leptin may therefore represent a non-invasive marker of non-specific airway inflammation in children.
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Affiliation(s)
- A Bodini
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Italy
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Broccoli A, Nanni C, Cappelli A, Bacci F, Gasbarrini A, Zanoni L, Brocchi S, Spagnolo S, Piovani C, Argnani L, Boriani S, Sabattini E, Golfieri R, Fanti S, Zinzani P. PET/CT-GUIDED BIOPSY FOR THE DIAGNOSIS OF LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2440_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- A. Broccoli
- Hematology, Institute of Hematology “Lorenzo e Ariosto Seràgnoli”; University of Bologna; Bologna Italy
| | - C. Nanni
- Nuclear Medicine, Medicina Nucleare Metropolitana, Sant'Orsola-Malpighi Hospital; University of Bologna; Bologna Italy
| | - A. Cappelli
- Radiology, Radiology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - F. Bacci
- Hemopathology, Hemopathology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - A. Gasbarrini
- Oncological and Degenerative Spine Surgery; Institute of Orthopedics “Rizzoli”; Bologna Italy
| | - L. Zanoni
- Nuclear Medicine, Medicina Nucleare Metropolitana, Sant'Orsola-Malpighi Hospital; University of Bologna; Bologna Italy
| | - S. Brocchi
- Radiology, Radiology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - S. Spagnolo
- Hemopathology, Hemopathology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - C. Piovani
- Oncological and Degenerative Spine Surgery; Institute of Orthopedics “Rizzoli”; Bologna Italy
| | - L. Argnani
- Hematology, Institute of Hematology “Lorenzo e Ariosto Seràgnoli”; University of Bologna; Bologna Italy
| | - S. Boriani
- Oncological and Degenerative Spine Surgery; Institute of Orthopedics “Rizzoli”; Bologna Italy
| | - E. Sabattini
- Hemopathology, Hemopathology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - R. Golfieri
- Radiology, Radiology Unit; Sant'Orsola-Malpighi Hospital; Bologna Italy
| | - S. Fanti
- Nuclear Medicine, Medicina Nucleare Metropolitana, Sant'Orsola-Malpighi Hospital; University of Bologna; Bologna Italy
| | - P.L. Zinzani
- Hematology, Institute of Hematology “Lorenzo e Ariosto Seràgnoli”; University of Bologna; Bologna Italy
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6
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Matti A, Lima GM, Zanoni L, Pultrone C, Schiavina R, Lodi F, Fanti S, Nanni C. Interpretation of 11C-choline PET/CT for the diagnosis of local relapse in radically treated prostate cancer. Eur J Hybrid Imaging 2017; 1:5. [PMID: 29782589 PMCID: PMC5954670 DOI: 10.1186/s41824-017-0007-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 09/01/2017] [Indexed: 12/04/2022] Open
Abstract
Purpose 11C–choline PET/CT is a widely-used tool for the diagnostic of prostate cancer (PCa). In literature, a great variability of local relapse (LR) detection rate is reported. The aim of this study is to provide positivity criteria for 11C–choline PET/CT detection of LR in patients who had surgery for PCa and presented prostate specific antigen (PSA) failure. Methods Sixty patients radically treated for PCa and presenting PSA failure were retrospectively analysed. Two Nuclear Medicine Physicians revised the 11C–choline PET/CT scans and defined by consensus if even mild focal uptake was present in the prostate bed (PB) and bladder-urethral junction (BUJ) along midline, regardless the previous report results. The results were subsequently correlated with a clinical and radiological follow up (FU) of 1 to 2 year and with TNM staging, Gleason score (GS), PSA level at relapse, radiotherapy (RT) and hormone therapy (HT) after surgery. Results There was focal uptake in 22/60 patients; 11 of them were true positive and 11 false positive. The PSA level showed a tight connection with the true positivity/negativity of Choline scan. Most of true positive cases (10/11 patients) presented a PSA ≥ 1 ng/ml, while approximately half of the false positive cases (5/11 patients) presented PSA below 1 ng/ml. The other variables were not correlated to Choline detection rate for LR. Conclusions This study shows that an even mild focal uptake of Choline in the PB and BUJ along midline must be considered suspicious for LR in patients radically treated for PCa, especially if they are presenting with PSA level > 1 ng/ml.
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Affiliation(s)
- A Matti
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - G M Lima
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - L Zanoni
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - C Pultrone
- 2Urology Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - R Schiavina
- 2Urology Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - F Lodi
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - S Fanti
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
| | - C Nanni
- 1Nuclear Medicine Department, S.Orsola-Malpighi Hospital, Bologna, Italy
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Bach-Gansmo T, Nanni C, Nieh P, Zanoni L, Bogsrud T, Sletten H, Korsan K, Kieboom J, Chau A, Ward P, Willoch F, Goodman M, Fanti S, Schuster D. Staging of Biochemically Relapsing Prostate Cancer Using the Positron Emission Tomography Tracer Fluciclovine F18. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Peroni DG, Moser S, Gallo G, Pigozzi R, Tenero L, Zanoni L, Boner AL, Piacentini GL. Ambroxol inhibits neutrophil respiratory burst activated by alpha chain integrin adhesion. Int J Immunopathol Pharmacol 2014; 26:883-7. [PMID: 24355223 DOI: 10.1177/039463201302600406] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The purpose of the present study was to investigate the possible anti-oxidant effect(s) of Ambroxol on neutrophils activated by ligand-binding of the drug with membrane-associated adhesion integrin CD11a and to estimate dose-response changes in oxygen free radical production. The amount of free radical production by anti-CD11a- and anti-CD4-coated neutrophils stimulated with N-formyl-methionyl-leucyl-phenylalanine (FMLP) and challenged with increasing concentration of Ambroxol, was evaluated within a time frame of 90 minutes. A significant dose-dependent effect response of Ambroxol on O2‾ production by cells coated with anti-CD11a antibody was observed. This preliminary study opens a new perspective on the therapeutic role of Ambroxol as an antioxidant drug and for its potential use in controlling oxidative stress, particularly in leukocyte-dependent inflammation.
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Affiliation(s)
- D G Peroni
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - S Moser
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - G Gallo
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - R Pigozzi
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - L Tenero
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - L Zanoni
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - A L Boner
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | - G L Piacentini
- Paediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
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Lopci E, Zanoni L, Fanti S, Ambrosini V, Castellani MR, Aktolun C, Chiti A. Gallium-68 DOTANOC imaging in paraganglioma/pheochromocytoma: presentation of sample cases and review of the literature. Q J Nucl Med Mol Imaging 2013; 57:134-145. [PMID: 23598686] [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: 06/02/2023]
Abstract
Gallium-68 DOTANOC is a high affinity somatostatin receptor ligand, first introduced in 2005 for imaging neuroendocrine tumors. Due to its technically simple production, broad availability, favourable biodistribution and advantageous dosimetry, although not approved yet in all European countries, gallium-68 DOTANOC has rapidly gained acceptance in the diagnostic and therapeutic work-flow of different types of neuroendocrine tumors. Principal indications in clinical practice in countries where it is officially approved include diagnosis and staging, restaging after treatment, identification of sites of unknown primary and selection of patients with neuroendocrine tumors eligible for therapy with somatostatin analogues.
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Affiliation(s)
- E Lopci
- Nuclear Medicine Department, Humanitas Clinical and Research Center Rozzano, Italy.
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Zanoni L, Cerci JJ, Fanti S. Use of PET/CT to evaluate response to therapy in lymphoma. Q J Nucl Med Mol Imaging 2011; 55:633-647. [PMID: 22231583] [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: 05/31/2023]
Abstract
(18)F-FDG-PET is a well established standard procedure for most lymphoma subtypes. In particular the advantage of metabolic imaging stands in its strong predictivity in response. Indeed PET scan has been incorporated into revised response criteria for aggressive lymphomas and recommended to be performed at baseline and after therapy. At the same time, several ongoing clinical trials are investigating the value of treatment adaptation based on interim PET (PETi) results for Hodgkin Lymphoma (HL) and aggressive Non-Hodgkin Lymphoma (NHL). On the other hand, scientific literature provides limited detailed information regarding the numerous non aggressive NHL subtypes. Usually indolent NHL are typically less FDG avid, furthermore their long natural history and high incidence of recurrence decreases the clinical impact of a potential risk-adapted or response-adapted approach. We reviewed, from a nuclear medicine point of view and a clinical point of interest, evidence for the use of FDG-PET in monitoring early and end treatment response.
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Affiliation(s)
- L Zanoni
- Pet Division, Nuclear Medicine Department, University Hospital Sant'Orsola-Malpighi, Bologna, Italy.
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Trejo YG, Bordenave RH, Beviacqua M, Zanoni L, Rumi LS. Tumor necrosis factor-alfa production by monocytes from lung and colorectal cancer patients. J Exp Clin Cancer Res 2001; 20:71-3. [PMID: 11370833] [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: 04/16/2023]
Abstract
Tumour necrosis factor-alpha (TNF-alpha) is a monocyte (MO)-derived cytokine that plays an essential role in the immunological system. In the present study our aim was to evaluate the levels of TNF-alpha secreted by MO from cancer patients. Blood MO were obtained from 10 lung cancer patients (LCP), 10 colorectal cancer patients (CCP) and 10 healthy donors (HD). TNF-alpha levels in MO culture supernatants spontaneously (sp) secreted or after stimulation with LPS treatment were evaluated using a commercial ELISA kit (sensibility: 10-1000 pg/ml). Mean values, expressed as pg/ml were: LCP: sp= 452.6+/-107.2, LPS= 589.5+/-126.7); CCP: sp= 84.1+/-25.0, LPS= 437.3+/-93.2; HD: sp= 74.2+/-21.5, LPS= 573.5+/-87.1. We concluded that MO from LCP secrete high levels of TNF-alpha spontaneously (p< 0.003 versus HD) and it was also observed an absence of response to LPS treatment in the 33% of the cases in these patients.
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Affiliation(s)
- Y G Trejo
- Laboratorio de Inmunologia, Instituto de Biologia y Medicina Experimental, Buenos Aires, Argentina
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Abstract
The behaviour of 5'-nucleotidase isoenzymes (ecto-5'-nucleotidase, e-Ns and c-N-II soluble 5'-nucleotidases) was studied in lymphocytes from patients with B-cell chronic lymphocytic leukemia. A strong reduction in ecto- and soluble activities was observed, although the pattern of the three 5'-nucleotidases did not always strictly overlap. A significant decrease (p<0.05) in ecto-5'-nucleotidase, e-Ns and c-N-II was found in B and T populations (B lymphocytes: 1.13, 0.88 and 1.26 nmol/h/10(6) cells versus 95.96, 9.64 and 13.73 nmol/h/10(6) cells in controls; T lymphocytes: 1.31, 0.23 and 0.06 nmol/h/10(6) cells versus 9.25, 1.31 and 2.10 nmol/h/10(6) cells in healthy subjects). The percentage of ecto-5'-nucleotidase-positive cells (CD73+) was reduced in leukemia patients, indicating a lower number of active molecules on the cell surface. The results of RT-PCR analysis showed that the ecto-5'-nucleotidase mRNA of leukemia patients was not defective.
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Affiliation(s)
- F Rosi
- Institute of Biochemistry and Enzymology, University of Siena, Italy
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Rosi F, Tabucchi A, Carlucci F, Galieni P, Lauria F, Zanoni L, Guerranti R, Marinello E, Pagani R. 5'-nucleotidase activity in lymphocytes from patients affected by B-cell chronic lymphocytic leukemia. Clin Biochem 1998; 31:269-72. [PMID: 9646951 DOI: 10.1016/s0009-9120(98)00017-4] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The activity of membrane-bound ecto-5'-nucleotidase and soluble e-Ns and c-N-II 5'-nucleotidases was evaluated on lymphocytes from patients affected by B-cell chronic lymphocytic leukemia (B-CLL). A statistically significative decrease in ecto-5'-nucleotidase, e-Ns, and c-N-II activities was observed in peripheral blood lymphocytes and in B and T populations from affected individuals. DESIGN AND METHODS For the assay of ecto-5'-nucleotidase, e-Ns, and c-N-II activity we used a radioactive procedure coupled to HPLC. Since the ecto-5'-nucleotidase is identified as CD73 antigen, we performed immunofluorescence analysis using a specific monoclonal antibody. We analyzed ecto-5'-nucleotidase mRNA by RT-PCR to ascertain the possibility of an alteration in the transcription of its gene. RESULTS A decrease in ecto-5'-nucleotidase activity was correlated to reduction in ecto-5'-nucleotidase positive cells (CD73+) in leukemia patients. RT-PCR produced a fragment of the expected size and the specific mRNA was found expressed in both healthy subjects and leukemia patients. CONCLUSIONS The decrease in ecto-5'-nucleotidase activity in patients with B-CLL is not due to loss of transcription of the specific mRNA. The presence of point mutations, splicing alteration, or posttranslational modifications must be investigated. If a defect at DNA or RNA level will be detected, the molecular analysis will be considered for diagnosis of B-cell chronic lymphocytic leukemia.
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Affiliation(s)
- F Rosi
- Institute of Biochemistry and Enzymology, University of Siena, Italy
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Finco G, Polati E, Gottin L, Bartoloni A, Milan B, Zanoni L, Valle L. [Intravenous patient-controlled analgesia (PCA) in the treatment of postoperative pain: rationale and clinical application]. Chir Ital 1998; 47:20-5. [PMID: 9480189] [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: 02/06/2023]
Abstract
The clinical use of the patient-controlled analgesia (PCA) represents a further improvement in the treatment of post-operative pain. In this way in success due to inadequate protocols, unpredictability of the drug absorption and variability of the response to one drug or to the same pain patterns between patients can be avoided. This technique allows the patient himself to control the pain without depending upon nurses or physicians for the administration of analgesic drugs. Although the PCA is in use since several years, there are still some unresolved problems which are considered in this paper.
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Affiliation(s)
- G Finco
- Istituto di Anestesiologia e Rianimazione, Centro di Terapia del Dolore, Università degli Studi, Verona
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Gottin L, Finco G, Polati E, Bartoloni A, Zanoni L, Bianchin E, Chiesa E. [The pre-emptive analgesia in the treatment of postoperative pain]. Chir Ital 1998; 47:12-9. [PMID: 9480188] [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: 02/06/2023]
Abstract
The term "pre-emptive analgesia" implies the hypothesis that an analgesic treatment, given before nociceptive stimuli reach the Central Nervous System, could prevent or reduce the subsequent pain. The rational basis of this phenomenon, giving rise to much interest in the last years, comes from the finding that noxious stimuli cause wind-up and receptive fields expansion phenomena in the dorsal horn neurons of the spinal cord leading to hyperalgesia. Recently, many clinical trials to verify the existence of a pre-emptive effect regarding the management of postoperative pain by the administration of non steroidal antiinflammatory drugs (NSAIDs), local anesthetics and opioids have been conducted. As regards NSAIDs to date no study demonstrated a pre-emptive effect. Conflicting results emerged from trials employing local anesthetics, opioids or associations of the three classes of drugs. Thus, the "pre-emptive analgesia" represents a very important phenomenon for the basic research, but further trials must investigate its clinical impact.
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Affiliation(s)
- L Gottin
- Istituto di Anestesiologia e Rianimazione, Università degli Studi, Verona
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Chasseing NA, Trejo YG, Bordenave HR, Zanoni L, Rumi LS. Intracytoplasmatic and extracellular interleukin-1 production by monocytes of lung and colorectal cancer patients. Acta Physiol Pharmacol Ther Latinoam 1997; 47:147-56. [PMID: 9339244] [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: 02/05/2023]
Abstract
We studied the production of interleukin-1 (IL-1) by peripheral blood monocytes (Mo) from twelve normal subjects (NS) and eight and nine untreated lung and colorectal cancer patients (CP), respectively. No significant changes of extracellular IL-1 biological activity was observed between CP and NS by thymocyte proliferation assay. This result was independent that the cells were treated or not with lipopolisaccharide from E. coli (LPS, 10 micrograms/ml). Moreover, CP present normal amount of antigenic IL-1 beta in LPS treated Mo culture supernatants by enzyme-linked immunosorbent assay (ELISA). The biological activity of IL-1 released was not significant modified after indomethacin (Indo, 10(-6)M) and LPS + Indo treatments. Furthermore, patients showed a low percentage of LPS activated Mo with intracytoplasmatic IL-1 (alpha + beta) compared to normal values. These results were obtained by immuno-alkaline phosphatase staining using monoclonal antibody anti IL-1 (alpha + beta). In conclusion, CP had a reduced number of Mo with intracytoplasmatic IL-1 (alpha + beta) and the difference observed may depend on degradation or in the rate of synthesis of this cytokine.
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Affiliation(s)
- N A Chasseing
- Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina (CONICET), Buenos Aires, Argentina
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Parente D, Raucci G, Celano B, Pacilli A, Zanoni L, Canevari S, Adobati E, Colnaghi MI, Dosio F, Arpicco S, Cattel L, Mele A, De Santis R. Clavin, a type-1 ribosome-inactivating protein from Aspergillus clavatus IFO 8605. cDNA isolation, heterologous expression, biochemical and biological characterization of the recombinant protein. Eur J Biochem 1996; 239:272-80. [PMID: 8706730 DOI: 10.1111/j.1432-1033.1996.0272u.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We describe the cloning and expression of a new cDNA from the filamentous fungus Aspergillus clavatus IFO 8605. This cDNA contains an open reading frame (ORF) that predicts a putative ribonuclease precursor with high similarity to the alpha-sarcin family of ribosome-inactivating proteins (RIPs). The cDNA encoding the mature protein was expressed in Escherichia coli, and the recombinant protein, a 17-kDa polypeptide designated clavin was purified and characterized. Clavin shows typical type-1 RIP properties: specific cleavage of ribosomal and synthetic RNA and inhibition of protein synthesis in cell-free and cellular systems. When selectively targeted to a tumour cell antigen by coupling to a monoclonal antibody (mAb) clavin was able to inhibit protein synthesis at nanomolar concentration. Pharmacokinetics analysis in mice indicated an elimination half-life (t1/2 beta) of 7.4 h with no particular accumulation in major organs. Liver toxicity was very limited and transient while no alteration of kidney function was observed. Clavin induced a late and very low antibody response in mice. The in vitro and in vivo biological characteristics of clavin, together with its availability in large amounts, suggest the usefulness of this toxin in the production of toxic chemical conjugates.
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Affiliation(s)
- D Parente
- Dipartimento di Biotecnologie, Menarini Ricerche Sud, Pomezia, Italy
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Rumi L, Trejo Y, Chasseing A, Pereda G, Zanoni L, Bordenave R. 588 Tumor nescrosis factora production by monocytes from lung and colorectal cancer patients. Eur J Cancer 1995. [DOI: 10.1016/0959-8049(95)95842-t] [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: 10/27/2022]
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Polati E, Finco G, Bartoloni A, Gottin L, Pinaroli AM, Zanoni L, Mazzetti C, Fontanive P. [Prevention of postoperative nausea and vomiting with ondansetron: a prospective, randomized, double-blind study in 90 patients]. Minerva Anestesiol 1995; 61:373-9. [PMID: 8919833] [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: 02/03/2023]
Abstract
Postoperative nausea and vomiting (PONV) are among the most common complications in surgical patients. In this prospective, double blind, parallel group study we compare the prophylactic antiemetic efficacy of ondansetron versus placebo in 90 patients undergoing general balanced anaesthesia. The patients were stratified according to the kind of surgery and randomly allocated to three treatment groups: 30 patients (Group A) received ondansetron 4 mg i.v. 1 hour before the induction of anaesthesia and placebo 1 hour before the end of surgery; 30 patients (Group B) received placebo 1 hour before the end of anaesthesia and ondansetron 4 mg i.v. 1 hour before the end of surgery; 30 patients (Group C-control group) received placebo in both the administrations. Data were analyzed by Student t test and chi 2 test; significance was taken at p < 0.05. The three groups proved comparable with respect to demographic characteristics, duration of anaesthesia and fentanyl consumption. Analysis of the results showed that PONV had a significantly lower incidence in treated patients (Groups A and B) than in the control group patients (Group C): postoperative nausea occurred in 13%, 30% and 67% of patients in Group A, B and C respectively and it was associated with vomiting in 3%, 7% and 57% of patients in Group A, B and C respectively. Although the patients in Group A showed a lower incidence of PONV in comparison to the patients in Group B, such differences proved to be not statistically significant. No adverse effects in relation to drug administration were observed. We conclude that ondansetron 4 mg i.v. is safe and effective in preventing PONV in the surgical patients, particularly when administered before the induction of anaesthesia.
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Affiliation(s)
- E Polati
- Istituto di Anestesiologia e Rianimazione, Università degli Studi, Verona
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Abstract
Using an expression cloning assay, we have isolated a novel cDNA, referred to as rsp-1, which suppresses the v-Ras-transformed phenotype. When introduced into NIH 3T3 fibroblasts under the control of a metallothionein promoter, rsp-1 confers resistance to v-Ras, but not to v-Mos or v-Src, and inhibits growth of the cells. The rsp-1 cDNA contains a 831-bp open reading frame encoding a 277-amino-acid leucine-rich protein. The rsp-1 cDNA exhibits no significant homology to sequences in the DNA data bases. However, searches of the protein data bases revealed that it contains a series of leucine-based repeats which are homologous to the leucine repeats found in the regulatory region of the yeast adenylyl cyclase. rsp-1 specific RNA is detectable in a wide variety of cell lines and tissues, and the gene is conserved among eukaryotic species. These data suggest that rsp-1 plays a role in Ras signal transduction.
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Affiliation(s)
- M L Cutler
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, Bethesda, Maryland 20892
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Turano A, Balsari A, Viani E, Landolfo S, Zanoni L, Gargiulo F, Caruso A. Natural human antibodies to gamma interferon interfere with the immunomodulating activity of the lymphokine. Proc Natl Acad Sci U S A 1992; 89:4447-51. [PMID: 1316609 PMCID: PMC49099 DOI: 10.1073/pnas.89.10.4447] [Citation(s) in RCA: 30] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Natural antibodies to gamma interferon (IFN-gamma) were found in patients suffering from different viral diseases and, at a lower titer, in healthy individuals. Such antibodies were affinity-purified and studied for their capability to interfere in vitro with the antiviral and immunomodulating activity of IFN-gamma. Data obtained show that these human anti-IFN-gamma antibodies have no inhibitory effect on the antiviral activity of IFN-gamma. On the contrary, they are able to inhibit the expression of Fc receptor sites and HLA-DR antigens induced by IFN-gamma on the U-937 cells, a human monocytoid/macrophage-derived cell line. These antibodies can also interfere in a mixed lymphocyte culture (MLC) with the proliferation of lymphocytes and the generation of cytotoxic lymphocytes. However, they showed only a moderate inhibitory effect on the cytotoxicity generated in MLC to K-562 cells. Human antibodies capable of interfering with the immunomodulating activities of IFN-gamma might open up a new field in clinical therapy for those diseases that carry evidence of activated cell-mediated immunity.
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Affiliation(s)
- A Turano
- Institute of Microbiology, University of Brescia, Italy
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Comolli R, Zanoni L, Mauri C, Leonardi MG. Amiloride inhibits protein synthesis and lowers the intracellular pH in exponential growing Yoshida rat ascites hepatoma (AH 130) cells: evidence for a role of the Na+/H+ exchanger. Cell Biol Int Rep 1985; 9:1017-25. [PMID: 2998626 DOI: 10.1016/0309-1651(85)90068-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We have previously demonstrated in a rat ascites hepatoma cell line (Yoshida AH 130) the presence of a glucose-activatable and amiloride sensitive Na+/H+ exchange (Cell Biol. Int. Rep., 1984, 8, 297-307). Amiloride is known to inhibit this exchange and to cause a cytoplasmic acidification, with inhibition of protein and DNA synthesis, in cells induced to grow. Amiloride appears also to penetrate the cells and to inhibit directly protein synthesis. In the present report we describe experiments in which the activity of amiloride (0.1, 0.4 and 3.0 mM) on protein synthesis and the internal pH of cells was compared in exponential growing and stationary phase Yoshida ascites cells. In phosphate buffered medium and Na+ out = 147 mM no inhibition of protein synthesis (3H-leu incorporation into total cell protein) and no internal acidification (14C-DMO distribution between intra- and extracellular volume) were produced by 0.1 and 0.4 mM amiloride in exponential growing cells. In stationary phase cells, on the contrary, 0.4 mM amiloride inhibited protein synthesis by 60% without decreasing the internal pH. When the Na+ out was lowered to 25 mM, to reduce competition with amiloride, and/or all Na+ out was substituted with choline, 0.1 and 0.4 mM amiloride markedly inhibited protein synthesis and decreased the internal pH in exponential growing cells. No apparent inhibition occurred in stationary phase cells under the same conditions, possibly due to a preexistent internal acidification, with severe decrease of protein synthesis. Fluorimetric studies of amiloride "binding" to ascites cells showed that a reduced number of amiloride receptor sites could exist in Yoshida hepatoma cells at the stationary phase of growth.(ABSTRACT TRUNCATED AT 250 WORDS)
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