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Visani M, Acquaviva G, De Leo A, Sanza V, Merlo L, Maloberti T, Brandes AA, Franceschi E, Di Battista M, Masetti M, Jovine E, Fiorino S, Pession A, Tallini G, de Biase D. Molecular alterations in pancreatic tumors. World J Gastroenterol 2021; 27:2710-2726. [PMID: 34135550 PMCID: PMC8173386 DOI: 10.3748/wjg.v27.i21.2710] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/25/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023] Open
Abstract
Genetic alterations in pancreatic tumors can usually be classified in: (1) Mutational activation of oncogenes; (2) Inactivation of tumor suppressor genes; and (3) Inactivation of genome maintenance genes controlling the repair of DNA damage. Endoscopic ultrasound-guided fine-needle aspiration has improved pre-operative diagnosis, but the management of patients with a pancreatic lesion is still challenging. Molecular testing could help mainly in solving these “inconclusive” specimens. The introduction of multi-gene analysis approaches, such as next-generation sequencing, has provided a lot of useful information on the molecular characterization of pancreatic tumors. Different types of pancreatic tumors (e.g., pancreatic ductal adenocarcinomas, intraductal papillary mucinous neoplasms, solid pseudopapillary tumors) are characterized by specific molecular alterations. The aim of this review is to summarize the main molecular alterations found in pancreatic tumors.
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Affiliation(s)
- Michela Visani
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
| | - Giorgia Acquaviva
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
| | - Antonio De Leo
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
- Division of Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Viviana Sanza
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
| | - Lidia Merlo
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
| | - Thais Maloberti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
| | - Alba A Brandes
- Medical Oncology Department, Azienda USL/IRCCS Istituto Delle Scienze Neurologiche di Bologna, Bologna 40139, Italy
| | - Enrico Franceschi
- Medical Oncology Department, Azienda USL/IRCCS Istituto Delle Scienze Neurologiche di Bologna, Bologna 40139, Italy
| | - Monica Di Battista
- Medical Oncology Department, Azienda USL/IRCCS Istituto Delle Scienze Neurologiche di Bologna, Bologna 40139, Italy
| | - Michele Masetti
- Division of Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40133, Italy
| | - Elio Jovine
- Division of Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40133, Italy
| | - Sirio Fiorino
- Internal Medicine Unit, Budrio Hospital Azienda USL, Bologna 40133, Italy
| | - Annalisa Pession
- Division of Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40138, Italy
| | - Giovanni Tallini
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna–Molecular Diagnostic Unit, Azienda USL di Bologna, Bologna 40138, Italy
- Division of Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Dario de Biase
- Division of Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna 40138, Italy
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Haak F, Merlo L, Dursunoglu B, von Flüe M, Steinemann D. Opioid free pain management in ambulatory hemorrhoidectomy reduces pain. Br J Surg 2021. [DOI: 10.1093/bjs/znab202.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Objective
Outpatient hemorrhoid surgery is a topic of growing importance with a need of modifications to pain management to enable early discharge. Opioid free anesthesia and analgesia (OFAA) has the goal to reduce postoperative pain as well as to improve discharge circumstances. The impact of OFAA on patients receiving ambulatory hemorrhoidectomy is investigated.
Methods
A retrospective cohort study on ambulatory hemorrhoidectomy between 2018 and 2020 was performed and patients that did and did not receive OFAA were compared. In the OFAA group patients received spinal anesthesia with Takipril and hyperbaric technique. Additionally Metamizole 500mg i.v. and Paracetamol 1g i.v. was used. In the non-OFAA group opioids were administered intravenously (fentanyl or remifentanyl) and sublingual (buprenorphin). Primary endpoint was pain measured according to a numeric rating scale (NRS) one hour postoperatively. Secondary endpoints were pain 24 hours postoperative, duration of hospital stay, urinary retention, postoperative nausea and vomiting (PONV), overall morbidity, and re-admission. Wilcoxon Rank-Sum test was performed to search for differences between the outcomes.
Results
117 patients were included in the analysis. 41 percent of the patients were female. The mean age was 54±14 years. 40 patients did not receive opioids perioperatively (OFAA group) and 77 did (non-OFAA group). The non-OFAA group received a mean dose of 23.3±17.9 mg morphine equivalent. Median NRS score one hour postoperatively was 0 (interquartile range 0-1) for OFAA and 2 (0-4) for non-OFAA (p = 0.01). The median NRS score 24 hours postoperatively was 1 (0-2) for OFAA and 1 (0-3) for non-OFAA (p = 0.40). There were 3 patients (7.5%) with urinary retention in OFAA and 5 patients (6.5%) in non-OFAA(p = 0.84).No patient had PONV in OFAA and 5 (6.5%) in non-OFAA (p = 0.10). The overall morbidity was 5 (12.5%) in OFAA and 16 (20.8%) in non-OFAA (p = 0.27). There were two readmissions (5%) in OFAA and 6 (7.8%) in non-OFAA (p = 0.58).
Conclusion
There is a significant difference in pain one hour postoperatively between OFAA and non-OFAA with a clear benefit of not administering opioids. Opioids may trigger pelvic floor spasms and disimprove postoperative pain. In the context of outpatient surgery, we recommend an opioid free operation to reduce postoperative pain and improve discharge prerequisites.
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Affiliation(s)
- F Haak
- Department of Visceral Surgery, Clarunis - University Abdominal Center, Basel, Switzerland
| | - L Merlo
- Department of Visceral Surgery, Clarunis - University Abdominal Center, Basel, Switzerland
| | - B Dursunoglu
- Department of Visceral Surgery, Clarunis - University Abdominal Center, Basel, Switzerland
| | - M von Flüe
- Department of Visceral Surgery, Clarunis - University Abdominal Center, Basel, Switzerland
| | - D Steinemann
- Department of Visceral Surgery, Clarunis - University Abdominal Center, Basel, Switzerland
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Vessella T, Zorzi A, De Lazzari M, Menegon V, Spagnol R, Merlo L, Pegoraro C, Giorgiano F, Cardillo R, Perazzolo Marra M, Basso C, Corrado D, Sarto P. 4252Additional value of stress testing for evaluation of ventricular arrhythmias in athletes undergoing preparticipation screening. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The optimal protocol of athletes pre-participation screening is a matter of debate. The aim of this study is to test the additional value of exercise testing (ET) for evaluation of ventricular arrhythmias (VA) in athletes with otherwise normal findings.
Methods
The study included 10,975 competitive athletes who underwent preparticipation screening including ECG and stress testing. Athletes with ≥3 isolated premature ventricular beats or ≥1 repetitive VA underwent second-line investigations (echocardiography and 24-hour ambulatory ECG monitoring with a training session) and, in case of frequent, complex or exercise-induced VA or echocardiographic abnormalities, also cardiac magnetic resonance (CMR).
Results
451 (4,1%) athletes were excluded for abnormalities at history, physical examination and baseline ECG. Among the remaining 10524 athletes, 524 (5%)showed VA at ET, 87 of whom underwent CMR.Echocardiography identified major cardiac abnormalities in 5 athletes and regional ventricular systolic dysfunction in 7, which were confirmed by CMR in 6. Other 12 patients with normal echocardiography had a positive CMR. In particular, in 16 subjects the CMR showed left ventricular late gadolinium enhancement suggesting myocardial fibrosis with a non-ischemic distribution. At multivariate analysis, VA observed at high work load at ET, the presence of complex VA at ET and the presence of a morphology other than infundibular or fascicular predicted an underlying pathological myocardial substrate while the presence of frequent (>500/24-hour) premature ventricular beats did not.
Predictors of underlying pathological myocardial substrate Substrate Univariate Multivariable YES (n=23) NO (n=501) OR (95% IC) P OR (95% IC) P Age 17 [13–43] 15 [14–17] 1.03 [0.98 -1.06] 0.18 – Male gender 15 (65%) 184 (37%) 3.2 [1.3–7.7] <0.001 1.6 [0.7–4.8] 0.28 >500 PVBs/24-hour 7 (30%) 98 (20%) 1.8 [0.7–4.5] 0.21 – VA at high work-load 10 (44%) 78 (16%) 4.2 [1.8–9.8] <0.001 1.6 [1.1–4.7] 0.02 Couplets/NSVT at ET 14 (61%) 117 (23%) 6.2 [2.5–15] <0.001 8.5 [2.5–29] 0.01 PVBs other than infundibular/fascicular 17 (74%) 118 (24%) 6.1 [2.4–16] <0.001 3.9 [1.4–11] 0.008
Conclusions
VA at ET may represent the only sign of a pathological myocardial abnormalities, such as the “isolated nonischemic left ventricular scar”, that could be the substrate for life-threatening ventricular arrhythmias. Addition of ET to baseline ECG may increase the sensitivity of PPE of competitive athletes.
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Affiliation(s)
| | - A Zorzi
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - M De Lazzari
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - V Menegon
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - R Spagnol
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - L Merlo
- ULSS2 Marca Trevigiana, Treviso, Italy
| | | | | | | | - M Perazzolo Marra
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - C Basso
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - D Corrado
- University Hospital of Padova, Department of cardiac, thoracic, vascular and public health sciences, Padua, Italy
| | - P Sarto
- ULSS2 Marca Trevigiana, Treviso, Italy
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Brivio I, Gavela MB, Merlo L, Mimasu K, No JM, del Rey R, Sanz V. ALPs effective field theory and collider signatures. Eur Phys J C Part Fields 2017; 77:572. [PMID: 32009845 PMCID: PMC6959426 DOI: 10.1140/epjc/s10052-017-5111-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/26/2017] [Indexed: 06/09/2023]
Abstract
We study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo-) Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at colliders are explored for both scenarios, deriving new bounds and analyzing future prospects, including LHC and High Luminosity LHC sensitivities. Mono-Z, mono-W, W-photon plus missing energy and on-shell top final states are most promising signals expected in both frameworks. In addition, non-standard Higgs decays and mono-Higgs signatures are especially prominent and expected to be dominant in non-linear realisations.
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Affiliation(s)
- I. Brivio
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
- Niels Bohr International Academy, University of Copenhagen, 2100 Copenhagen, Denmark
| | - M. B. Gavela
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - L. Merlo
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - K. Mimasu
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
- Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université catholique de Louvain, Chemin du Cyclotron, 2, 1348 Louvain-la-Neuve, Belgium
| | - J. M. No
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
- Department of Physics, King’s College London, Strand, London, WC2R 2LS UK
| | - R. del Rey
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - V. Sanz
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
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5
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Merlo L, Passera C, Giulivo C. Seasonal, developmental and varietal effects on photosynthetic enzyme activities of peach leaves (Prunus persica(L.) Batsch). ACTA ACUST UNITED AC 2015. [DOI: 10.1080/00221589.1991.11516121] [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: 10/22/2022]
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Cossin S, Malavaud S, Jarno P, Giard M, L'Hériteau F, Simon L, Bieler L, Molinier L, Marcheix B, Venier AG, Simon L, Ali-Brandmeyer O, Neels C, Jarno P, Aupée M, Perennec M, Astagneau P, L'Hériteau F, Daniel F, Campion C, Giard M, Bernet C, Caillat-Vallet E, Venier AG, Bervas C, Reyreaud E, Baillet P, Costa Y, Jost JL, Merle V, Merlo L, Seguier JC, Malavaud S, Bruyere F, Thiolet JM, Barquin-Guichard S. Surgical site infection after valvular or coronary artery bypass surgery: 2008–2011 French SSI national ISO-RAISIN surveillance. J Hosp Infect 2015; 91:225-30. [DOI: 10.1016/j.jhin.2015.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 07/16/2015] [Indexed: 11/17/2022]
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7
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Abstract
In dogs with experimental cardiac hypertrophy in resting conditions, coronary blood flow and myocardial O2 consumption increased proportionately to the cardiac mass; coronary flow and O2 consumption per gram of myocardium, therefore, ranged within normal values. The coronary reserve, neasured as the percentage increase in the coronary blood flow from rest till peak flow during reactive hyperaemia, was noticeably reduced, because it was partially utilized, even at rest, and consequently the possibility of an increase in flow after exercise or stress was diminished.
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Siracusano S, Baglio V, Stassi A, Merlo L, Moukheiber E, Arico׳ A. Performance analysis of short-side-chain Aquivion® perfluorosulfonic acid polymer for proton exchange membrane water electrolysis. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.04.030] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Marchetti G, Cerri O, Riva D, Formentini M, Merlo L, Noseda V. Premières recherches sur le désacétyl-lanatoside c marqué par le tritium: Concentration du glucoside dans les tissus, le sang et les urines de l’animal d’expérience (chien). Cardiology 2008. [DOI: 10.1159/000168543] [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: 11/19/2022]
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10
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Marchetti G, Maccari M, Merlo L. Recherches expérimentales sur les effets de la l-adrénaline et de la l-noradrénaline sur la circulation coronarienne. Cardiology 2008. [DOI: 10.1159/000167700] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Storch E, Keeley M, Merlo L, Jacob M, Correia C, Weinstein D. Psychosocial Functioning in Youth with Glycogen Storage Disease Type I. J Pediatr Psychol 2008; 33:728-38. [DOI: 10.1093/jpepsy/jsn017] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Merlo L, Princivalle M, Vita F. [Applications of digital radiology to pediatric uroradiology]. Radiol Med 1994; 87:295-8. [PMID: 8146368] [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: 01/29/2023]
Abstract
The authors report their 4 years' experience with a computerized digital radiographic system based on photostimulable phosphor plates which was used mostly in pediatric radiology. Major protection advantages were observed for uroradiology where high kV (90-95 kV) and very low exposure times (0.02-0.010s) were used. With this radiographic technique reduced exposure parallels increased graininess due to quantum mottle: the two variables must therefore be balanced not to decrease diagnostic accuracy. During our 4 years' experience, 368 examinations were performed on pediatric patients: 252 micturition cystourethographs, 81 urograms and 35 retrograde pyelographs. None of these examinations needed to be repeated due to over/under-exposure and image quality was always high, in spite of a light "noise". Digital radiography in pediatric urology allows radiation dose to be reduced and high quality images to be acquired and is therefore likely to take over conventional radiologic techniques.
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Affiliation(s)
- L Merlo
- Servizio di Radiologia, Arcispedale S. Anna, Ferrara
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14
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Abstract
The Authors report their experience in the employment of a computerized digital radiographic system in Neonatal Intensive Care. The analog screen-film system is replaced by photosensitive imaging plates, scanned after X-ray exposure by a laser that releases the digital image, which can then be manipulated on computer work-stations. In a period of twelve months about 200 chest-abdomen X-ray examinations in Neonatal Intensive Care have been performed using this method with good technical and diagnostic results. The use of digital radiography in the neonatal area is of high interest: this system produces good quality images, there is a reduction in radiation dose and 'retakes', the system allows selective enhancement of different structures and their magnification.
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Affiliation(s)
- L Merlo
- Department of Radiology, S. Anna Hospital, Ferrara, Italy
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15
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Lupi L, Corcione S, Cervi PM, Bighi S, Merlo L, Vita G. Diagnostic potential of double contrast arthrography of the knee with the digital technique. Skeletal Radiol 1991; 20:5-8. [PMID: 2000505 DOI: 10.1007/bf00243713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Experience with digital radiography applied to double contrast arthrography of the knee performed with a photostimulable phosphor plate is reported. The image processing technique used to improve the digital image is described, and some theoretical considerations are discussed. A preliminary comparison is also made between arthrographic images obtained with conventional screen-film systems and the digital system, especially in respect of the image quality and visualization of the soft tissue structures least well demonstrated with conventional arthrography.
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Affiliation(s)
- L Lupi
- Department of Radiology, S. Anna Hospital, Ferrara, Italy
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16
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Casagrande C, Merlo L, La Regina A. Development of dopaminergic drugs for the chronic treatment of congestive heart failure. J Auton Pharmacol 1990; 10 Suppl 1:s85-93. [PMID: 1983011 DOI: 10.1111/j.1474-8673.1990.tb00233.x] [Citation(s) in RCA: 3] [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] [Indexed: 12/29/2022]
Abstract
1. The search of orally active dopaminergic drugs for the chronic treatment of congestive heart failure has followed two different approaches. 2. On the one hand, a selective DA-1 receptor agonist, such as fenoldopam, has been investigated as an agent developed for the stimulation of vascular and tubular DA-1 receptors in the kidney. On the other hand, orally active prodrugs were synthetized with the aim of mimicking the full pattern of dopaminergic and adrenergic actions of intravenous dopamine. 3. Ibopamine, the diisobutyric ester of N-methyldopamine, has shown effects comparable to those of dopamine in various animal models and in clinical investigations. Furthermore, patients suffering from mild or severe congestive heart failure were shown to benefit from ibopamine treatment in a number of therapeutic trials. 4. Limited experience is currently available on other prodrugs, such as docarpamine and Sim 2055, i.e. the 4-0-phosphate ester of N-methyldopamine. The latter is an analogue of ibopamine designed for a preferential delivery of N-methyldopamine in the kidney. 5. Based upon some additional studies with levodopa, the results suggest that a combination of DA-1 and DA-2 agonistic activity is a desirable feature of a new drug, since it appears suitable to provide vasodilation while counteracting the neurohumoral abnormality of congestive heart failure.
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Affiliation(s)
- C Casagrande
- Simes Cardiovascular Research Centre, Cormano, Milan, Italy
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17
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Merlo L, Bighi S, Cervi PM, Lupi L, Vita G. [Digital radiography in neonatal intensive care]. Radiol Med 1990; 80:230-3. [PMID: 2236678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The authors report their experience with the routinary use of a computerized digital radiography system in Intensive Neonatal Care department. The conventional screen-film system is replaced by photostimulable imaging plates, which are scanned during processing by a laser providing the digital image. The latter is subsequently processable on high-resolution monitors. Over a 6-month period 86 examinations were performed with this method in Intensive Neonatal Care; good technical results were obtained. The use of digital radiography in intensive neonatal care is extremely promising for it allows high-quality images to be obtained, and radiation dose and number of acquisitions to be reduced. Finally, work stations allow both selective visualization of different body structures and their magnification.
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Affiliation(s)
- L Merlo
- Servizio di Radiologia, Arcispedale S. Anna, Ferrara
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18
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Cervi PM, Bighi S, Merlo L, Lupi L, Vita G. [Traditional and digital urography compared. The authors' own experience]. Radiol Med 1990; 79:354-9. [PMID: 2377752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A computed radiographic system for generating and archiving digital radiographic images was employed in ivp. The system produces 2 digital images per exposure: the first one simulates a conventional radiograph, while the second enhances some spatial frequencies and emphasizes the structure borders. The conventional radiographs and the digital images of 50 patients submitted to ivp were reviewed by four experienced radiologists to evaluate their comparative quality, and the results were statistically analyzed. Digital images proved to be better than conventional radiographs for some of the selected parameters, especially in the evaluation of renal edges and sometimes for calyceal opacification. As for the other parameters, no statistically significant difference was observed between conventional radiographs and digital images.
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Affiliation(s)
- P M Cervi
- Servizio di Radiologia Ospedaliera, Arcispedale S. Anna, Ferrara
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19
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Lupi L, Bighi S, Limone GL, Cervi PM, Merlo L. [Double-contrast arthrography in meniscal pathology. Remarks on 1000 cases]. Radiol Med 1989; 77:638-42. [PMID: 2756181] [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: 01/02/2023]
Abstract
The authors performed a statistical study on a series of 1000 patients examined with double-contrast fluoroscopically-guided knee arthrography. Arthrographic diagnoses were compared with the arthrotomic (500 patients), arthroscopic (350 patients) or clinical diagnoses of 150 patients with a follow-up of 6 months. In this series of patients with a history of "recurrent meniscal injury", arthrographic diagnoses were confirmed in a high percentage of cases, with 96.9% accuracy, 96.7% sensitivity for tears, and 98.6% specificity. On the basis of these results the authors suggest double-contrast arthrography as an examination of considerable value in the diagnosis of meniscal lesions, while in their opinion arthroscopy should be limited to questionable cases, to complex lesions with involvement of multiple articular structure and to the alterations clearly treatable by arthroscopy.
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Affiliation(s)
- L Lupi
- Servizio di Radiologia, Arcispedale S. Anna, Ferrara
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20
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Bernardi L, Perlini S, Soffiantino F, Farilla C, Calciati A, Soldá PL, Paro M, Merlo L, Marchetti G, Finardi G. Acute haemodynamic effects of ibopamine and dopamine on isovolumic relaxation. Eur J Pharmacol 1989; 164:415-24. [PMID: 2767116 DOI: 10.1016/0014-2999(89)90249-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 01/02/2023]
Abstract
The effects of intraduodenal ibopamine (a new orally active inotropic agent claimed to have haemodynamic effects similar to dopamine) on isovolumic relaxation were monitored for 90 min in eight closed-chest anaesthetized dogs. Dopamine and epinine (ibopamine active metabolite) were also infused at graded doses. After 15 min, ibopamine (12 mg/kg) shortened the time constant of isovolumic relaxation, and increased stroke volume and mean aortic pressure. Peak positive dP/dt increased significantly only 10 min later. Heart rate did not change. Dopamine (10 micrograms/kg per min) similarly reduced the time constant, and increased stroke volume, mean aortic pressure, peak positive dP/dt and heart rate. Epinine (10 micrograms/kg per min) caused similar changes in peak positive dP/dt, stroke volume, mean aortic pressure, and accelerated time constant without raising the heart rate. Ibopamine and epinine therefore significantly improved the isovolumic relaxation phase, like dopamine, without however affecting the heart rate.
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Affiliation(s)
- L Bernardi
- Department of Internal Medicine, University of Pavia, IRCCS, San Matteo, Italy
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21
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Chierici R, Riccipetitoni G, Tamisari L, Vesce F, Zanella B, Merlo L, Vigi V. Conservative management of urinary abnormalities detected in utero. Fetal Ther 1989; 4:43-8. [PMID: 2486025 DOI: 10.1159/000263389] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
During a 5-year period, we observed 48 fetuses with urinary malformations diagnosed by antenatal sonography. Postnatal investigations confirmed the presence of a urinary tract anomaly in 44 of the 48 fetuses selected by prenatal ultrasound (91%). Accurate antenatal diagnosis was made in 35 of the 48 cases (73%). In 9 fetuses renal disease was detected, but its specific nature was not in accordance with the prenatal diagnosis. In our series the most common anomaly was hydronephrosis secondary to ureteropelvic junction obstruction. This condition was observed in 31 of the 44 patients (70.4%); 7 of the newborns who showed an obstructive pattern were submitted to early surgical repair, while the remaining 24 cases and 1 renal unit of the group undergoing early surgical repair were relegated to expectant observation, with periodic clinical and laboratory controls. A spontaneous recovery was observed in 12 cases; the dilatation remained unchanged in 10 cases, while 3 patients showed a progressive worsening of the condition which led to a surgical correction. Our findings agree with those in recent reports in providing little support for early, indiscriminate surgical repair. Moreover, our experience confirms the possibility of a spontaneous recovery in newborns with hydronephrosis and draws attention to the benefit of a conservative management in properly selected patients.
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Affiliation(s)
- R Chierici
- Department of Pediatrics, University of Ferrara, Italy
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22
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Merlo L, Bighi S, Trevisani L, Stabellini G, Caselli M, Grandi E. [Localized gastric amyloidosis. Clinico-radiologic aspects]. Radiol Med 1988; 76:494-6. [PMID: 3205927] [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: 01/04/2023]
Affiliation(s)
- L Merlo
- Servizio di Radiologia, Arcispedale S. Anna, Ferrara
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23
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Bighi S, Lupi L, Merlo L, Cervi PM, Limone GL. Adult Wilms' tumor: US and CT features. Rays 1988; 13:71-5. [PMID: 2855662] [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: 01/03/2023]
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24
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Ferrini R, Merlo L, Miragoli G. [Mechanism of action of ibopamine: pharmacological effects of epinine and other metabolites]. Cardiologia 1988; 33:49-53. [PMID: 2835159] [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: 01/02/2023]
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25
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Ferrini R, Merlo L, Miragoli G. Pharmacological characterization of epinine 3-O-sulphate and 4-O-sulphate. Arch Int Pharmacodyn Ther 1987; 289:37-45. [PMID: 3435204] [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: 01/05/2023]
Abstract
Ibopamine, the diisobutyric ester of N-methyldopamine, is able to increase cardiac output and induce vasodilatation on oral administration. While the pharmacodynamic activity of ibopamine is rather long-lasting, N-methyldopamine, i.e. ibopamine's primary metabolite, can be detected in plasma only for a short time after the administration. We have investigated the pharmacological activity of N-methyldopamine 3-O-sulphate and 4-O-sulphate, since the plasma levels of these conjugated metabolites are higher and last longer than those of N-methyldopamine. These compounds appeared to be devoid of any pharmacodynamic activity both in vivo on the main hemodynamic parameters in dog and on diuresis in rat, and in vitro on cat papillary muscle and rabbit ear artery. Consequently, the duration of ibopamine hemodynamic effects cannot be related to these circulating metabolites, thus other hypotheses should be taken into consideration.
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Affiliation(s)
- R Ferrini
- Simes Cardiovascular Research Centre, Zambon Group, Milan, Italy
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26
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Lupi L, Bighi S, Limone GL, Merlo L, Panzavolta R. A case report of bone metastases in Wilms' tumor: diagnostic aspects and a review of the literature. Rays 1987; 12:61-5. [PMID: 2845486] [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: 01/02/2023]
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27
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Marchetti G, Merlo L. Effects of ibopamine on acute cardiac failure following experimental coronary occlusion in dogs. Arzneimittelforschung 1986; 36:331-3. [PMID: 3707644] [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: 01/07/2023]
Abstract
The activity of ibopamine (SB-7505), the 3,4-diisobutyryl ester of N-methyldopamine, on myocardial contractility and systemic and renal hemodynamics was investigated in the anesthetized dog with experimental infarction, instrumented with catheters and electromagnetic flowmeters. Ibopamine, given by the intraduodenal route at a dose of 24 mg/kg, was effective in improving the hemodynamic parameters depressed by myocardial infarction, in particular myocardial contractility and renal hemodynamics. In eliciting such activity which resembles that developed by dopamine in similar experimental conditions, ibopamine seems to meet the requirements of an orally active pharmacological agent useful in the therapy of acute heart failure.
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28
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Merlo L, Ghirardi P, Brusoni B, Mussini E, Marchetti G. Effects of ibopamine on systemic, pulmonary and regional hemodynamics. Experimental investigations in anesthetized dogs. Arzneimittelforschung 1986; 36:304-11. [PMID: 3707641] [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: 01/07/2023]
Abstract
The effects of a new orally effective dopamine-like derivative, ibopamine (SB-7505), the 3,4-diisobutyryl ester of N-methyldopamine, on the cardiovascular system were investigated in anesthetized dogs. Ibopamine increased dose-dependently stroke volume index, cardiac index, left ventricular pressure, its first derivative: dP/dt, peak velocity left ventricular ejection and renal blood flow. After beta-blockade the positive inotropic effect of ibopamine is inhibited. Total peripheral resistance and renal vascular resistance decreased after ibopamine. Urine output was increased dose-dependently, reaching 115% after ibopamine 8 mg/kg intraduodenally. Coronary and femoral flows and resistance did not change after administration of 4 and 8 mg/kg. Only very high doses (24 mg/kg) caused an increase in flow and resistance. Mesenteric flow decreased transiently and then returned to the previous level or increased considerably over the basal figures when a high dose was used. No significant changes or fall in heart rate were observed with doses up to 16 mg/kg and no significant changes in pulmonary resistance were noted. The data obtained from the present investigation show, however, that oral ibopamine is capable of producing most of the effects induced by intravenously given dopamine in anesthetized dogs. Ibopamine's cardiac and renal effects may open new prospects for the long-term treatment of chronic heart failure in human subjects.
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Limone GL, Orzincolo C, Lupi L, Merlo L, Corcione S. [Intramural pseudodiverticulosis of the esophagus: presentation of a case]. Radiol Med 1983; 69:957-8. [PMID: 6431502] [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: 01/20/2023]
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30
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Marchetti G, Merlo L. [Effects of papaverine on peripheral vascular areas in the dog]. Farmaco Prat 1981; 36:390-5. [PMID: 7274419] [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: 01/24/2023]
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31
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Marzo A, Ghirardi P, Parenti MA, Merlo L, Marchetti G, Cavalca L, Omboni E, Pignataro T, Ligresti A. Pharmacokinetics of a combination of raubasine, dihydroergocristine and dihydroergotamine in dogs and human beings. Farmaco Prat 1981; 36:173-97. [PMID: 6785104] [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: 01/21/2023]
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32
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Merlo L, Brusoni B, Mussini E, Ghirardi P. [The cardiovascular effects of the optical isomers of 1-(0-methoxy-phenoxy-)-3-isopropylamino-2-propanolo-hydrochloride (moprolol)]. Boll Soc Ital Cardiol 1980; 25:955-961. [PMID: 6116496] [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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33
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Brusoni B, Marchetti G, Merlo L, Minoja GM, Ladelli L, Lacchini R, Melloni CF, Longo T. [Effects of dopamine, noradrenaline and isoproterenol on pulmonary circulation in anesthetized dogs]. Boll Soc Ital Biol Sper 1979; 55:1773-9. [PMID: 550877] [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: 12/23/2022]
Abstract
Experiments were performed on 19 anaesthetized open-chest dog instrumented with polyethylene catheters inserted: into the aorta, in pulmonary artery and in left atrium and with an electromagnetic flow-transducer placed around the ascending aorta in order to record : systemic arterial and pulmonary pressures, mean left auricular pressure and phasic aortic flow. Heart rate, stroke volume, total systemic and pulmonary resistance, cardiac work were moreover calculated. Each dog was given intravenously by slow infusione : Dopamine (micrograms 5--10--20/kg/min/ 5 min), Isoproterenol (microgram 0.125--0.25--0.5/kg/min/5 min) and Norepinephrine (microgram 0.25--0.5--1 /kg/min/5 min). Results obtained on systemic hemodynamics agree with those reported by many other investigators. On pulmonary circulation : Isoproterenol, at the tested doses, elicited vasodilator effects, Norepinephrine increased total pulmonary resistance but not pulmonary vascular resistance, while Dopamine did not modify or slightly reduced vascular pulmonary tone.
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Marzo A, Ghirardi P, Merlo L, Marchetti G. Absorption and excretion of dihydroergocristine and dihydroergotamine in the dog. Farmaco Prat 1978; 33:477-83. [PMID: 108136] [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: 12/13/2022]
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35
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Brusoni B, Colombo A, Merlo L, Marchetti G, Longo T. Hemodynamic and metabolic changes induced by temporary clamping of the thoracic aorta. Eur Surg Res 1978; 10:206-16. [PMID: 28232 DOI: 10.1159/000128009] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Numerous authors reported a significant deterioration of heart function induced by aortic cross-clamping. Nevertheless, the aorta has been clamped during various surgical procedures without any complication. We studied the hemodynamic and metabolic variations induced by 20 min thoracic aorta cross-clamping in 6 open-chest dogs. During clamping the most striking modifications were an increase in coronary blood flow of over 65%, an increase in cardiac work of over 77% and an increase in total peripheral resistances of over 68% compared to base values. No significant variations were found in the heart rate and cardiac index. Metabolic parameters, such as O2 consumption and lactate consumption increased significantly during the clamping period. The increase in lactate consumption and the progressive and continuous improvement in oxygenation indexes (lactate/pyruvate, redox potential, excess of lactate) proved the absence of any myocardial anoxia during this period. Within 15--30 min after declamping all hemodynamic and metabolic parameters reverted to values close to basal values. These data strongly suggest that the mammalian heart can tolerate this procedure satisfactorily for a limited period of time. In clinical settings, one should consider the base conditions of the cardiovascular system before transposing these conclusions.
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Longo T, Brusoni B, Merlo L, Marchetti GV. Haemodynamics at rest and under effort in chronic arteriovenous fistulae (AVFs). J Cardiovasc Surg (Torino) 1977; 18:509-17. [PMID: 591561] [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: 12/23/2022]
Abstract
Latero-lateral femoro-femoral arteriovenous fistulae (AVFs) were surgically created in mongrel dogs. After 7-9 months during which the dogs were trained on a treadmill, devices suitable for recording arterial pressure and aortic and coronary flow were chronically implanted. Haemodynamic parameters of the dogs were controlled either at rest or after effort, keeping AVFs open or manually closed. The results, when statistically processed, showed that haemodynamic changes induced by occlusion of AVFs at rest and under effort are similar from a qualitative point of view, but considerably more marked after muscular exercise. Under effort the shunt index calculated rose to a higher extent than cardiac output. The decrease in heart rate after AVFs occlusion was significantly correlated with flow in the fistulae. However, the Nicoladoni-Branham phenomenon ought to be used for indirect evaluation of the shunt flow.
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37
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Marzo A, Ghirardi P, Merlo L, Marchetti G. Absorption, fate and excretion of glaziovine-14C in the dog. Arch Int Pharmacodyn Ther 1977; 227:254-62. [PMID: 907410] [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: 12/24/2022]
Abstract
The pharmacokinetic parameters of glaziovine, a proaporphine alkaloid with neuropharmacological properties, were investigated in dogs. At alkaline pH, glaziovine-14C showed a very high partition coefficient value from a buffered water solution and both benzene and chloroform. When administered i.v. to both conscious and anaesthetized dogs, levels of glaziovine-14C were higher in the heart, liver, kidneys and brain, and lower in skeletal muscle, skin and plasma. The high amount of radioactivity found in the small intestine as well as that found in bile obtained from a biliary fistula demonstrates that glaziovine is excreted both via the bile and via urine in not dissimilar amounts at least in dogs. When administered orally, peak plasma levels were encountered in 1 hr. Cumulative urinary excretion of glaziovine over a 24 hr period was 49% after the i.v. route and 39% after the oral route. By comparing the percentage of urinary excretion or the area under the plasma level time curve (AUC) obtained in the first 24 hr after i.v. and oral administration, percentages of bioavailability were obtained ranging from 80 to 98%. Glaziovine thus seems to possess a very high enteral absorption.
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Brusoni B, Merlo L, Marchetti G. [Effects of a beta blockader (SD/1601) associated with a tranquilizing agent (Camazepam) on systemic and coronary hemodynamic modifications due to induced emotional stress in the conscious dog]. Boll Soc Ital Biol Sper 1977; 53:445-9. [PMID: 20907] [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: 12/12/2022]
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39
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Brusoni B, Marchetti G, Merlo L. [Modification of isopropyl-noradrenaline-induced tachycardia through the effects of the beta blockaders: pindolol, practolol and SD/1601 in the conscious dog]. Boll Soc Ital Biol Sper 1977; 53:450-4. [PMID: 20908] [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: 12/12/2022]
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40
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Merlo L, Brusoni B, Minoia G, Marchetti G. [Effect of a new beta blockader (SD/1601) on positive levelling of the ST epicardial tracing during coronary occlusion in the narcotized dog]. Boll Soc Ital Biol Sper 1977; 53:440-4. [PMID: 20906] [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: 12/12/2022]
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41
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Marchetti G, Merlo L, Brusoni B. Relationship between coronary resistance, a redox potential across the heart and myocardial consumption of lactate and oxygen. Biochem Exp Biol 1977; 13:267-75. [PMID: 16296008] [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: 05/05/2023]
Affiliation(s)
- G Marchetti
- Istituto Simes di Cardiologia Sperimentale, Milano
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Marzo A, Ghirardi P, Parenti MA, Merlo L, Marchetti G. [Plasma levels and biliary and urinary elimination of raubasine, dehydroergocristine and dihydroergotamine after venous administration in anesthetized dogs]. Boll Soc Ital Biol Sper 1975; 51:684-6. [PMID: 816365] [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: 12/24/2022]
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43
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Marzo A, Ghirardi P, Parenti MA, Merlo L, Marchetti G. [Plasma levels and urinary elimination of glaziovine after oral and intravenous administration in conscious dogs]. Boll Soc Ital Biol Sper 1975; 51:681-3. [PMID: 1222084] [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: 12/26/2022]
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44
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Merlo L, Noseda V, Ferrini R, Miragoli G, Marchetti G. Effect of camazepam (SB-5833), a new antianxious drug, on cardiac contractility and coronary hemodynamics. Arzneimittelforschung 1974; 24:1759-62. [PMID: 4155634] [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: 01/09/2023]
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45
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Merlo L, Marchetti G. [Vasodilating action of dopamine on renal and mesenteric vessels after alpha and beta adrenergic blocking]. Boll Soc Ital Biol Sper 1974; 50:1584-8. [PMID: 4156477] [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: 01/09/2023]
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46
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Marchetti G, Merlo L, Miragoli G, Ferrini R, Noseda V. [Effect of G strophantin administered per os on the myocardial contractility in the anesthetized dog. Comparison with digoxin]. Boll Soc Ital Biol Sper 1972; 48:130-3. [PMID: 5068836] [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: 01/13/2023]
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50
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Marchetti GV, Marzo A, De Ponti C, Scalvini A, Merlo L, Noseda V. Blood levels and tissue distribution of 3 H-ouabain administered per os. An experimental and clinical study. Arzneimittelforschung 1971; 21:1399-403. [PMID: 5171797] [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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