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Beretta F, Sacconi R, Bandello F, Querques G. Large choroidal cavern development in a patient with geographic atrophy. J Fr Ophtalmol 2024; 47:104208. [PMID: 38703487 DOI: 10.1016/j.jfo.2024.104208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/21/2024] [Indexed: 05/06/2024]
Affiliation(s)
- F Beretta
- Division of head and neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - R Sacconi
- Division of head and neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - F Bandello
- Division of head and neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - G Querques
- Division of head and neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132 Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
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Beretta F, Huang YF, Punga AR. Towards Personalized Medicine in Myasthenia Gravis: Role of Circulating microRNAs miR-30e-5p, miR-150-5p and miR-21-5p. Cells 2022; 11:cells11040740. [PMID: 35203389 PMCID: PMC8870722 DOI: 10.3390/cells11040740] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 11/25/2022] Open
Abstract
Myasthenia gravis (MG) is an autoimmune neuromuscular disease characterized by fatigable skeletal muscle weakness with a fluctuating unpredictable course. One main concern in MG is the lack of objective biomarkers to guide individualized treatment decisions. Specific circulating serum microRNAs (miRNAs) miR-30e-5p, miR-150-5p and miR-21-5p levels have been shown to correlate with clinical course in specific MG patient subgroups. The aim of our study was to better characterize these miRNAs, regardless of the MG subgroup, at an early stage from diagnosis and determine their sensitivity and specificity for MG diagnosis, as well as their predictive power for disease relapse. Serum levels of these miRNAs in 27 newly diagnosed MG patients were compared with 245 healthy individuals and 20 patients with non-MG neuroimmune diseases. Levels of miR-30e-5p and miR-150-5p significantly differed between MG patients and healthy controls; however, no difference was seen compared with patients affected by other neuroimmune diseases. High levels of miR-30e-5p predicted MG relapse (p = 0.049) with a hazard ratio of 2.81. In summary, miR-150-5p is highly sensitive but has low specificity for MG, while miR-30e-5p has the greatest potential as a predictive biomarker for the disease course in MG, regardless of subgroup.
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Affiliation(s)
- Francesca Beretta
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy;
| | - Yu-Fang Huang
- Department of Medical Sciences, Clinical Neurophysiology, Uppsala University, 75185 Uppsala, Sweden;
| | - Anna Rostedt Punga
- Department of Medical Sciences, Clinical Neurophysiology, Uppsala University, 75185 Uppsala, Sweden;
- Correspondence:
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Francioni V, Beretta F, Salito C, Bovio D, Appollonio I, Tremolizzo L, Ferrarese C. Pupillary constriction velocity as a biomarker of behavioural and psychological symptoms of dementia in a cohort of patients with Alzheimer's disease. J Neurol Sci 2021. [DOI: 10.1016/j.jns.2021.118985] [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: 11/27/2022]
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4
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Beretta S, Da Re F, Francioni V, Remida P, Storti B, Fumagalli L, Piatti ML, Santoro P, Cereda D, Cutellè C, Pirro F, Montisano DA, Beretta F, Pasini F, Cavallero A, Appollonio I, Ferrarese C. Case Report: Concomitant Massive Cerebral Venous Thrombosis and Internal Iliac Vein Thrombosis Related to Paucisymptomatic COVID-19 Infection. Front Neurol 2021; 12:622130. [PMID: 33643200 PMCID: PMC7902908 DOI: 10.3389/fneur.2021.622130] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 10/27/2020] [Accepted: 01/22/2021] [Indexed: 01/28/2023] Open
Abstract
Thrombotic complications are common in COVID-19 patients, but cerebral venous system involvement, timing after infection, optimal treatment, and long-term outcome are uncertain. We report a case of massive cerebral venous thrombosis and concomitant internal iliac vein thrombosis occurring in the late phase of paucisymptomatic COVID-19 infection. Mild respiratory symptoms, without fever, started 3 weeks before headache and acute neurological deficits. The patient had silent hypoxemia and typical COVID-19 associated interstitial pneumonia. Brain CT scan showed a left parietal hypodense lesion with associated sulcal subarachnoid hemorrhage. CT cerebral venography showed a massive cerebral venous thrombosis involving the right transverse sinus, the right jugular bulb, the superior sagittal sinus, the straight sinus, the vein of Galen, and both internal cerebral veins. Abdominal CT scan showed no malignancy but revealed an asymptomatic right internal iliac vein thrombosis. Both cerebral venous thrombosis and pelvic vein thrombosis were effectively treated with unfractionated heparin started on the day of admission, then shifted to low molecular weight heparin, with a favorable clinical course. Nasopharyngel swab, repeated twice, tested negative for SARS-CoV-2. Serological tests confirmed SARS-CoV-2 infection. Our case supports active surveillance and prevention of thrombotic complications associated with COVID-19, which may affect both peripheral and cerebral venous system. Early initiation of unfractionated heparin may lead to good neurologic outcome.
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Affiliation(s)
- Simone Beretta
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy.,School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMi (Milan Center for Neuroscience), Milan, Italy
| | - Fulvio Da Re
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy.,School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMi (Milan Center for Neuroscience), Milan, Italy
| | | | - Paolo Remida
- Department of Neuroradiology, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Benedetta Storti
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Lorenzo Fumagalli
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy
| | | | - Patrizia Santoro
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Diletta Cereda
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Claudia Cutellè
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Fiammetta Pirro
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | | | - Francesca Beretta
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Francesco Pasini
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Annalisa Cavallero
- Department of Microbiology and Virology, San Gerardo Hospital ASST Monza, Monza, Italy
| | - Ildebrando Appollonio
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy.,School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMi (Milan Center for Neuroscience), Milan, Italy
| | - Carlo Ferrarese
- Department of Neurology, San Gerardo Hospital ASST Monza, Monza, Italy.,School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMi (Milan Center for Neuroscience), Milan, Italy
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Lingiadi Y, Lonati C, Vanzulli L, Beretta F, Maffei C. Defense Mechanisms Rating Scale (DMRS) and Personality Disorders (PDs). Eur Psychiatry 2020. [DOI: 10.1016/s0924-9338(97)80387-2] [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: 11/26/2022] Open
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Beretta F, Aliprandi A, Di Leo C, Salmaggi A. A Case of Anti-N-Methyl-D-Aspartate Receptor Encephalitis Associated with Glioma of the Pons. J Clin Neurol 2018; 15:125-127. [PMID: 30375763 PMCID: PMC6325364 DOI: 10.3988/jcn.2019.15.1.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/11/2018] [Accepted: 08/13/2018] [Indexed: 12/28/2022] Open
Affiliation(s)
- Francesca Beretta
- Università degli Studi di Milano-Bicocca-School of Neurology, Milano, Italy.,Department of Neurology, ASST Lecco, Lecco, Italy.
| | | | - Claudio Di Leo
- Department of Nuclear Medicine, ASST Lecco, Lecco, Italy
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Braga M, Pederzoli M, Antonini A, Beretta F, Crespi V. Reasons for hospitalization in Parkinson's disease: A case-control study. Parkinsonism Relat Disord 2014; 20:488-92; discussion 488. [DOI: 10.1016/j.parkreldis.2014.01.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 01/09/2014] [Accepted: 01/27/2014] [Indexed: 01/11/2023]
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Beretta F, Bassani S, Binda E, Verpelli C, Bello L, Galli R, Passafaro M. The GluR2 subunit inhibits proliferation by inactivating Src-MAPK signalling and induces apoptosis by means of caspase 3/6-dependent activation in glioma cells. Eur J Neurosci 2009; 30:25-34. [PMID: 19558602 DOI: 10.1111/j.1460-9568.2009.06804.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Glioblastoma multiforme (GBM) is the most invasive and undifferentiated type of brain tumour, and so surgical interventions are ineffective. We found that GluR2 is absent in fast-growing GBM-derived tumour stem cells and high-grade glioma specimens, but is expressed in slow-growing stem cells and low-grade glioma specimens. More remarkably, GluR2 overexpression in U-87MG cells inhibits proliferation by inactivating extracellular signal-regulated kinase (ERK)1/2-Src phosphorylation and induces apoptosis. Mechanistically, we observed that the scaffold protein GRIP is essential for the effect of GluR2 on ERK-Src inactivation. These findings indicate that the absence of the GluR2 subunit favours malignancy.
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Affiliation(s)
- Francesca Beretta
- DTI Dulbecco Telethon Institute, Via Vanvitelli 32, Milan 20129, Italy
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Bassani S, Valnegri P, Beretta F, Passafaro M. The GLUR2 subunit of AMPA receptors: Synaptic role. Neuroscience 2009; 158:55-61. [DOI: 10.1016/j.neuroscience.2008.10.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Revised: 09/02/2008] [Accepted: 10/02/2008] [Indexed: 11/26/2022]
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D'Alessio A, Piro E, Beretta F, Brugnoni M, Marinoni F, Abati L. Lymphatic preservation using methylene blue dye during varicocele surgery: a single-center retrospective study. J Pediatr Urol 2008; 4:138-40. [PMID: 18631910 DOI: 10.1016/j.jpurol.2007.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [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] [Received: 07/17/2007] [Accepted: 09/25/2007] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Hydrocele and testicular edema caused by division of lymphatic vessels during varicocelectomy could lead to decrease in testicular function. In-vivo methylene blue mapping of testicular lymphatic vessels should prevent damage to the lymphatic system. MATERIALS AND METHODS We retrospectively compared outcomes for 46 patients who received an intraparenchymal injection of 0.25 ml of vital dye (isosulphan blue) before a laparoscopic or an inguinal/subinguinal spermatic vein ligation with 93 controls in whom no mapping technique was adopted. RESULTS Methylene blue mapping of testicular lymphatics reduced the incidence of postvaricocelectomy hydrocele from 6.4% (6/93) to 2.1% (1/46); the incidence of hydrocele was 0% in all cases of successful lymphatic mapping. CONCLUSION Mapping of testicular lymphatic drainage with intraparenchymal vital dye is an easy, safe, rapid and cost-free technique. We stress the importance of sparing the lymphatic system to ensure the best andrological outcome.
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Affiliation(s)
- A D'Alessio
- Department of Pediatric Surgery, A.O. Ospedale Civile di Legnano, Legnano, Italy.
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11
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Saglietti L, Dequidt C, Kamieniarz K, Rousset MC, Valnegri P, Thoumine O, Beretta F, Fagni L, Choquet D, Sala C, Sheng M, Passafaro M. Extracellular Interactions between GluR2 and N-Cadherin in Spine Regulation. Neuron 2007; 54:461-77. [PMID: 17481398 DOI: 10.1016/j.neuron.2007.04.012] [Citation(s) in RCA: 272] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Revised: 02/13/2007] [Accepted: 04/16/2007] [Indexed: 12/16/2022]
Abstract
Via its extracellular N-terminal domain (NTD), the AMPA receptor subunit GluR2 promotes the formation and growth of dendritic spines in cultured hippocampal neurons. Here we show that the first N-terminal 92 amino acids of the extracellular domain are necessary and sufficient for GluR2's spine-promoting activity. Moreover, overexpression of this extracellular domain increases the frequency of miniature excitatory postsynaptic currents (mEPSCs). Biochemically, the NTD of GluR2 can interact directly with the cell adhesion molecule N-cadherin, in cis or in trans. N-cadherin-coated beads recruit GluR2 on the surface of hippocampal neurons, and N-cadherin immobilization decreases GluR2 lateral diffusion on the neuronal surface. RNAi knockdown of N-cadherin prevents the enhancing effect of GluR2 on spine morphogenesis and mEPSC frequency. Our data indicate that in hippocampal neurons N-cadherin and GluR2 form a synaptic complex that stimulates presynaptic development and function as well as promoting dendritic spine formation.
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Affiliation(s)
- Laura Saglietti
- DTI Dulbecco Telethon Institute, CNR Institute of Neuroscience, Cellular and Molecular Pharmacology, Department of Pharmacology, University of Milan, Italy
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12
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Andaluz N, Beretta F, Bernucci C, Keller JT, Zuccarello M. Evidence for the improved exposure of the ophthalmic segment of the internal carotid artery after anterior clinoidectomy: morphometric analysis. Acta Neurochir (Wien) 2006; 148:971-5; discussion 975-6. [PMID: 16917665 DOI: 10.1007/s00701-006-0862-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [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: 10/13/2005] [Accepted: 06/21/2006] [Indexed: 10/24/2022]
Abstract
BACKGROUND Although resection of the anterior clinoid process (ACP) is valuable in the surgical treatment of aneurysms of the ophthalmic (C6) segment of the internal carotid artery (ICA), quantitative assessment of this adjunct is incomplete. Our morphometric study assesses the effectiveness of the anterior clinoidectomy for exposure of the C6 segment of the ICA. METHODS Ten formalin-fixed adult cadaveric heads were dissected bilaterally and pterional craniotomies were performed bilaterally. Measurements before and after resection of the ACP included the length of C6 segment of the ICA on its lateral aspect; C6 segment length on its medial aspect; and medial length of the optic nerve from the optic chiasm to falciform ligament (before ACP resection) then to the annulus of Zinn (after ACP resection). FINDINGS Height and width of the intradural ACP were 8.67 +/- 2.63 and 6.57 +/- 1.68 mm, respectively. After clinoidectomy, mean length of the lateral C6 segment of the ICA increased 60% and mean exposure of the medial C6 segment of the ICA increased 113% (p < 0.001). Exposure of the optic nerve increased 150% (p < 0.001) after clinoidectomy and sectioning of the falciform ligament. No correlations were found between the lengths of the ACP and entire C6 segment, or the ACP size and amount of the C6 segment covered by the clinoid. CONCLUSIONS Exposure of the C6 segment of the ICA is markedly increased by increase of the mobility of the optic nerve with clinoidectomy and section of the falciform ligament.
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Affiliation(s)
- N Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267-0515, USA
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13
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Beretta F, Piro E, Fedeli T, Abati L, Cremaschini G, D'Alessio A. [Congenital megacystis in a female fetus. Case report]. Pediatr Med Chir 2005; 27:112-6. [PMID: 16910462] [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: 05/11/2023] Open
Abstract
The Authors report a case of congenital megacystis without other anomalies, diagnosed in a 27GW female fetus. At prenatal counselling the diagnostic hypothesis formulated were obstructive uropathy (cloacal malformation, uro-genital sinus, urethral atresia), functional alteration (neurogenic bladder, primitive myopathies) or Prune Belly Syndrome (rare in females). The outcome following treatment suppose a visceral myopathy, for this condition, however definitive etiology is obscure.
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Affiliation(s)
- F Beretta
- Chirurgia Pediatrica, Dip. Materno Infantile A.O. Ospedale Civile di Legnano
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Beretta F, Sala C, Saglietti L, Hirling H, Sheng M, Passafaro M. NSF interaction is important for direct insertion of GluR2 at synaptic sites. Mol Cell Neurosci 2005; 28:650-60. [PMID: 15797712 DOI: 10.1016/j.mcn.2004.11.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2004] [Revised: 11/03/2004] [Accepted: 11/15/2004] [Indexed: 11/27/2022] Open
Abstract
Here, we use a cell surface thrombin cleavage assay to investigate directly the role of NSF in the surface delivery and synaptic accumulation of alpha-amino-3-hydroxy-5-methylisoxazolepropionate (AMPA) receptors. In cultured hippocampal neurons, the GluR2 subunit (which specifically interacts with NSF) inserts rapidly into the plasma membrane from intracellular compartments and accumulates in synaptic sites. In contrast, surface accumulation of GluR3 (a subunit that does not interact with NSF) or a GluR2 mutant defective in NSF binding (DeltaA849-Q853) occurs initially at extrasynaptic sites and is kinetically slower than wild-type GluR2. Introducing a binding site for NSF into GluR3 (GluR3NSF) generates a subunit that behaves like GluR2 in terms of kinetics and site of surface insertion. These data suggest that the NSF interaction is necessary for rapid incorporation of AMPA receptor subunits into synapses and is sufficient to confer this property on GluR3.
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Affiliation(s)
- Francesca Beretta
- DTI Dulbecco Telethon Institute, CNR Institute of Neuroscience, Cellular and Molecular Pharmacology, Department of Pharmacology, University of Milano, Via Vanvitelli, 32, Milano, MI 2019, Italy
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Beretta F, Andaluz N, Zuccarello M. Aneurysms of the ophthalmic (C6) segment of the internal carotid artery: treatment options and strategies based on a clinical series. J Neurosurg Sci 2004; 48:149-56. [PMID: 15876983] [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: 05/02/2023]
Abstract
AIM Treatment of ophthalmic segment aneurysms is technically demanding and still associated with a relatively high morbidity and mortality. The refinements of surgical techniques combined with the development of indirect methods of treatment have greatly improved the outcome in treating these lesions. We present our clinical experience and discuss treatment strategies. METHODS Seventy-eight consecutive patients with 88 ophthalmic segment aneurysms were admitted to our service from January 1997 to June 2003. Forty-three patients presented with unruptured aneurysms and 35 presented with subarachnoid hemorrhage (SAH). Management strategies included surgical clipping alone in 53 patients, clipping and hemicraniectomy in 2, coiling in 17, external carotid artery-middle cerebral artery (ECA/MCA) by-pass in 2, and coil occlusion of the internal carotid artery in 2. Two patients underwent no treatment. RESULTS In the group of 41 treated patients with unruptured aneurysms, 40 (97.6%) had good outcomes (GOS 1-2) and 1 patient had poor (GOS 3) outcome at discharge. Procedure-related morbidity was 15.7% (8/51 procedures), and permanent morbidity was 9.75% (4/41 patients). In the 35 patients who presented with SAH, mortality was 14.3% (5 patients); at discharge, 21 patients (60%) had good (GOS 1-2) and 9 (25.7%) poor (GOS 3) outcomes. The overall outcome was good (GOS 1-2) in 63 patients (80.8%) and poor (GOS 3-4) in 10 patients (12.8%). Overall mortality was 6.4% (5 patients all with SAH). CONCLUSIONS Direct obliteration of the aneurysm utilizing advanced surgical techniques is our preferred treatment approach, whenever possible. In case of unclippable large or giant aneurysms, the surgical or endovascular occlusion of the proximal internal carotid artery with or without an extracranial-intracranial by-pass is an option. A highly skilled team including a cerebrovascular and an endovascular surgeon is essential to achieve good outcomes in treating these lesions.
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MESH Headings
- Adult
- Aged
- Aneurysm, Ruptured/complications
- Aneurysm, Ruptured/physiopathology
- Aneurysm, Ruptured/surgery
- Carotid Artery, Internal/physiopathology
- Carotid Artery, Internal/surgery
- Cerebral Revascularization/methods
- Cerebral Revascularization/statistics & numerical data
- Embolization, Therapeutic/adverse effects
- Embolization, Therapeutic/methods
- Embolization, Therapeutic/statistics & numerical data
- Female
- Humans
- Intracranial Aneurysm/complications
- Intracranial Aneurysm/physiopathology
- Intracranial Aneurysm/surgery
- Male
- Middle Aged
- Neurosurgical Procedures/adverse effects
- Neurosurgical Procedures/methods
- Neurosurgical Procedures/statistics & numerical data
- Postoperative Complications/etiology
- Retrospective Studies
- Rupture, Spontaneous/complications
- Rupture, Spontaneous/physiopathology
- Rupture, Spontaneous/surgery
- Subarachnoid Hemorrhage/etiology
- Subarachnoid Hemorrhage/physiopathology
- Subarachnoid Hemorrhage/surgery
- Surgical Instruments/statistics & numerical data
- Survival Rate
- Treatment Outcome
- Vascular Surgical Procedures/adverse effects
- Vascular Surgical Procedures/methods
- Vascular Surgical Procedures/statistics & numerical data
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Affiliation(s)
- F Beretta
- Department of Neurosurgery, University of Cincinnati College of Medicine, Ohio 45267, USA.
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Beretta F. The paraclinoid aneurysms and the distal dural ring: a new classification. J Neurosurg Sci 2004; 48:161-75. [PMID: 15876985] [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: 05/02/2023]
Abstract
AIM The aneurysms of the paraclinoid region are a heterogeneous group of lesions, whose terminology and classification are contradictory because of the complex anatomy and the lack of key anatomical references. A surgical anatomical study to identify an anatomical reference is presented, a new classification of these aneurysms is proposed, and radiological guidelines are given to distinguish an intra from extradural lesion on the x-rays. METHODS A surgical anatomical study of the paraclinoid region has been performed on 10 human cadaveric heads, formalin-fixed and injected with colored silicone rubber, and on skulls, with particular emphasis on the distal dural ring (DDR), anterior clinoid process (ACP) and their relationships with the cavernous, clinoid and ophthalmic segments of the internal carotid artery. On the basis of anatomical considerations a new classification of the aneurysms of the paraclinoid region centered on the DDR has been presented. Furthermore, 50 skulls and 5 injected cadaveric heads underwent radiological evaluation in order to develop x-ray criteria to identify the DDR. RESULTS The key anatomical element is the DDR. This allows the differentiation of aneurysms of the paraclinoid region into 4 groups (supra-DDR, para-DDR, infra-DDR, transitional). The radiological identification of the planum sphenoidale, tuberculum sellae and optic canal allows to distinguish intra versus extradural lesions. CONCLUSIONS A new classification of the aneurysms of the paraclinoid region which uses the DDR as key anatomical element is proposed. Radiological guidelines able to identify the DDR and, thus, to distinguish intra versus extradural aneurysms are provided.
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MESH Headings
- Carotid Artery, Internal/anatomy & histology
- Carotid Artery, Internal/diagnostic imaging
- Carotid Artery, Internal/pathology
- Carotid Artery, Internal, Dissection/classification
- Carotid Artery, Internal, Dissection/diagnostic imaging
- Carotid Artery, Internal, Dissection/pathology
- Cavernous Sinus/anatomy & histology
- Cerebral Angiography
- Cranial Fossa, Anterior/anatomy & histology
- Cranial Fossa, Anterior/diagnostic imaging
- Cranial Fossa, Middle/anatomy & histology
- Cranial Fossa, Middle/diagnostic imaging
- Dura Mater/anatomy & histology
- Dura Mater/diagnostic imaging
- Humans
- Intracranial Aneurysm/classification
- Intracranial Aneurysm/diagnostic imaging
- Intracranial Aneurysm/pathology
- Oculomotor Nerve/anatomy & histology
- Ophthalmic Artery/anatomy & histology
- Ophthalmic Artery/diagnostic imaging
- Optic Nerve/anatomy & histology
- Sella Turcica/anatomy & histology
- Sella Turcica/diagnostic imaging
- Sphenoid Bone/anatomy & histology
- Sphenoid Bone/diagnostic imaging
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Affiliation(s)
- F Beretta
- Department of Neurosurgery, Neuroscience Institute and the University of Cincinnati College of Medicine, Ohio 45267, USA.
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Abstract
The combustion of heavy fuel oil for power generation is a great source of carbonaceous and inorganic particle emissions, even though the combustion technologies and their efficiency are improving. The information about the size distribution function of the particles originated by trace metals present into the fuels is not adequate. In this paper, we focused our attention on the larger distribution mode of both the carbonaceous and metallic particles. Isokinetic sampling was performed at the exhausts of two typical heavy oil flames and the samples were size-segregated by mean of an 8-stages Andersen impactor. Further investigation performed on the samples using electronic microscopy coupled with X-ray analysis (EDX) evidenced the presence of solid spherical particles, called plerosphere(1) as analogy with cenosphere, with typical dimensions ranging between 200 nm and 2-3 microm, whose atomic composition contains a large amount of the trace metals present in the parent oils (Fe, V, Ni, etc). EDX analyses revealed that the metal concentration increases as the plerosphere dimension decreases.
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Affiliation(s)
- C Allouis
- Istituto di Ricerche sulla Combustione, Consiglio Nazionale delle Ricerche, Piazzale V. Tecchio 80, Napoli 80125, Italy
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18
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Allouis C, Apicella B, Barbella R, Beretta F, Ciajolo A, Tregrossi A. Monitoring of fuel consumption and aromatics formation in a kerosene spray flame as characterized by fluorescence spectroscopy. Chemosphere 2003; 51:1097-1102. [PMID: 12718975 DOI: 10.1016/s0045-6535(02)00712-9] [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: 05/24/2023]
Abstract
The large presence of aromatic compounds in distillate fossil fuels should allow, in line of principle, to follow the fuel consumption and/or the presence of unburned fuel in a high temperature environment like a burner or the exhaust of combustion systems by exploiting the high fluorescence emission of aromatic fuel components. To this aim an UV-excited fluorescence source has to be used since the aromatic fuel components are strongly fluorescing in the UV region of the emission spectrum. In this work UV-excited laser induced fluorescence (LIF) diagnostics was applied to spray flames of kerosene in order to follow the fuel consumption and the formation of aromatic species. A strong UV signal was detected in the spray region of the flame that presented a shape similar to that found in the LIF spectra preliminary measured on the cold spray and in the room-temperature fluorescence of fuel solutions. The decrease of UV signal along the spray flame region was associated to the consumption of the fuel, but more difficult seems to be the attribution of a broad visible emission, that is present downstream of the flame. The visible emission feature could be assigned to flame-formed PAH species contained in the high molecular weight species, hypothesizing that their fluorescence spectra are shifted toward the visible for effect of the high temperature flame environment.
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Affiliation(s)
- C Allouis
- Istituto di Ricerche sulla Combustione, C.N.R., P.le Tecchio 80, 80125 Napoli, Italy
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19
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Joannon MD, Langella G, Beretta F, Cavaliere A, Noviello C. REACTOR CHARACTERISTICS RELATED TO MODERATE OR INTENSE LOW-OXYGEN DILUTION FOR CLEAN/CLEANING COMBUSTION PLANTS. ACTA ACUST UNITED AC 2003. [DOI: 10.1615/interjenercleanenv.v4.i1.10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Abstract
The authors report their experience with one-trocar transumbilical laparoscopic assisted appendectomy (TULAA). From January 1998 to June 2000, 150 patients underwent appendectomy using this technique. Ages ranged from 2.5 to 17.4 years. The procedure was completed using only one trocar in 116 cases (77.3%); in 28 patients (18.7%) one or two additional cannulas were needed. Conversion to open surgery became necessary in 6 cases (4%). Mean operative time was 35 minutes, mean hospital stay 3.5 days. There were no major complications and no mortality in this series. The advantages of a one-trocar appendectomy compared with open surgery are the same as those reported for conventional laparoscopic appendectomy: i.e., excellent exploration of the abdominal cavity, the possibility of discovering extra-appendiceal lesions, easy and rapid localization of the appendix and a shorter hospital stay. The additional advantages of TULAA compared with conventional laparoscopic appendectomy are a low rate of intraoperative incidents, minimal scarring, less postoperative pain and a more rapid return to unrestricted activities.
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Affiliation(s)
- A D'Alessio
- Department of Paediatric Surgery, Azienda Ospedaliera Legnano, Milan, Italy.
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21
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Allouis C, Apicella B, Barbella R, Beretta F, Tregrossi A, Ciajolo A. Soot and PAH Formation in Rapeseed Oil Spray Combustion. ACTA ACUST UNITED AC 2002. [DOI: 10.1080/15614410211843] [Citation(s) in RCA: 2] [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: 10/27/2022]
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22
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Merola SS, Gambi G, Allouis C, Beretta F, Borghese A, D'Alessio A. Analysis of exhausts emitted by i.c. engines and stationary burners, by means of u.v. extinction and fluorescence spectroscopy. Chemosphere 2001; 42:827-834. [PMID: 11219709 DOI: 10.1016/s0045-6535(00)00257-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Optical investigations of the exhausts emitted by internal combustion (i.c.) engines and a stationary burner were performed, in order to assess their relative role as sources of organic matter to the atmosphere. Extinction spectra of air-diluted exhausts in the 200-400 nm u.v. band reveal the expected existence of gaseous trace-species (NO, NO2 and SO2) and carbonaceous particulate matter (soot). In addition, after subtracting the absorption contribution from known species, a strong residual absorption band remains below 250 nm, which is attributed to organic aromatic matter, involving no more than two aromatic rings. A set of ex situ extinction and laser induced fluorescence (LIF) experiments were carried out on condensed combustion-water samples. Extinction measurements from the water samples show absorption spectra similar to those observed from air-diluted samples, which are attributed to low volatility organic compounds, as they are trapped in the condensed phase. Combining the indications of extinction data for both air-diluted and condensed samples, it is suggested that the absorbing species might be molecular clusters of one/two aromatic rings. LIF spectra from condensed samples evidence two fluorescence bands, centered above 300 and 400 nm, respectively, whose intensities correlate with the combustion regimes. Analogous optical analysis on rain samples, collected in an urban area, showed that rain absorption and fluorescence spectra are similar to those found in condensed exhaust samples, which is consistent with the prevailing contribution of i.c. engines to the urban air pollution. The combined experimental data suggest that the absorbing and fluorescent species trapped in the condensed samples are organic (aromatic) compounds, involving mostly one two aromatic rings structural units, since they do not absorb above 250 nm. The overall molecular weight of the trapped material is likely heavy as they show low volatility.
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23
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Beretta F, van den Bosch S, Castelli D, Cavalli F, Ghielmini M. Intrapatient comparison of an intermittent and a continuous flow cell separator for the collection of progenitor and stem cells from the blood. Vox Sang 2000; 75:149-53. [PMID: 9784670] [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: 02/09/2023]
Abstract
BACKGROUND AND OBJECTIVES Continuous-flow and intermittent-flow blood cell separators (CFCS and IFCS) are both used to collect stem cells from the blood to rescue patients undergoing myeloablative treatment for cancer. MATERIALS AND METHODS We designed a study to compare the collection efficiency of the two systems. The continuous-flow Cobe Spectra and the intermittent-flow Haemonetics MCS-3P were used to collect cells on consecutive days from 9 patients mobilised with G-CSF with or without chemotherapy. Blood obtained before leukapheresis and the leukapheresis product were analysed for their content of red and white cells, platelets, CD34-positive cells, GM-CFC, CFC-E, and BFU-E. An extraction ratio was calculated. RESULTS We found that the CFCS extracted about 4 times more mononuclear cells per unit time, 3 times more CD34-positive, and 4 times more clonogenic cells than the IFCS. The subject acceptability of the two systems was similar. CONCLUSION The CFCS is a more efficient system for stem cell collection. IFCS requires a longer harvesting time for the same result.
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Affiliation(s)
- F Beretta
- Servizio Oncologico Cantonale, Bellinzona, Svizzera
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24
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Filipazzi V, Rho B, Banfi P, Beretta F, e Vaghi A. Small cell lung cancer: a case record notes. Lung Cancer 1999. [DOI: 10.1016/s0169-5002(99)90802-4] [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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25
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Colleoni M, Martinelli G, Beretta F, Marone C, Gallino A, Fontana M, Graffeo R, Zampino G, De Pas T, Cipolla G, Martinoni C, Goldhirsch A. Intracavitary chemotherapy with thiotepa in malignant pericardial effusions: an active and well-tolerated regimen. J Clin Oncol 1998; 16:2371-6. [PMID: 9667253 DOI: 10.1200/jco.1998.16.7.2371] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.7] [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: 11/20/2022] Open
Abstract
PURPOSE Malignant pericardial effusion, although highly variable, is an uncommon complication of cancer. It is often associated with symptoms like dyspnea, chest pain, and cough, which may be severe and disabling. We analyzed the results of our current treatment policy to evaluate the effectiveness and tolerance of a new approach for this disorder. PATIENTS AND METHODS Patients with malignant pericardial effusions were treated with intracavitary thiotepa (15 mg on days 1, 3, and 5) through an indwelling pericardial cannula after extraction of as much pericardial fluid as possible on day 0. Responses were assessed by clinical examination, computed tomographic (CT) scan, and echocardiography before treatment, 1 month after treatment, and every 2 months thereafter. Twenty-three patients with malignant symptomatic pericardial effusion were treated and all were assessable for effectiveness and tolerance of the procedure. RESULTS Nine patients with breast cancer, 11 with lung cancer, two with an unknown primary tumor, and one with metastatic melanoma were treated. In all but three patients, systemic medical treatment was started after completion of intracavitary therapy. Nineteen patients responded to treatment (83%; 95% confidence interval, 61% to 95%) with a rapid improvement of symptoms. The median time to pericardial effusion progression was 8.9 months (range, 1 to 26). No significant side effects were registered, except one patient who had transient grade III thrombocytopenia and leukopenia and one patient who had grade I leukopenia. CONCLUSION A short course of intracavitary treatment with thiotepa is highly effective and well tolerated in the treatment of malignant pericardial effusion.
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Affiliation(s)
- M Colleoni
- Division of Medical Oncology and Service of Cardiology, European Institute of Oncology, Milan, Italy.
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26
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Perren A, Beretta F, Schubarth P. [ARDS in plasmodium vivax malaria]. Schweiz Med Wochenschr 1998; 128:1020-3. [PMID: 9691337] [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: 02/08/2023]
Abstract
Acute renal failure, disseminated intravascular coagulation, ARDS, hypoglycaemia, coma or epileptic seizures are manifestations of severe Plasmodium falciparum malaria. On the other hand, vivax malaria or benign tertian malaria is usually free from complications. In the present report we describe a case of acute tertian malaria with a severe and complicated course. In this situation bacterial coinfection should always be suspected and treated empirically with broad-spectrum antibiotics, until the results of cultures are available. Mixed plasmodial infection (P. vivax and P. falciparum) must be excluded by repeated and meticulous examination of blood smears. Newer techniques such as PCR processing or ParaSight F Test are mentioned.
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Affiliation(s)
- A Perren
- Servizio di Cure Intense, Ospedale San Giovanni, Bellinzona
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27
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Pinelli L, Beretta F, Dalla Bernardina P, Gonfiantini E, Groff P. Incidence of insulin dependent diabetes mellitus in children 0-14 years old in the Veneto Region, Italy. J Pediatr Endocrinol Metab 1998; 11:447-50. [PMID: 11517961 DOI: 10.1515/jpem.1998.11.3.447] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The objective of this study was to provide reliable data on the incidence of type 1 diabetes, in children aged 0-14 years, in the Veneto region, and to better understand its geographical variability throughout Italy and Europe. All new cases of type 1 diabetes diagnosed between 1st January 1993 and 31st December 1994 among residents in Veneto were recorded. Clinical records from 33 hospitals in the region were used as the primary source for this study. The number of disease-related free-of-charge prescriptions served as a secondary source. The completeness of ascertainment was estimated at 89%. The mean incidence estimated over the 1993-1994 period was 10.7 per 100,000/year. The Veneto region appears to have a relatively high incidence of IDDM among non-insular Italian regions. No significant sex-related difference in incidence was noted; the male/female ratio was 1.5.
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Affiliation(s)
- L Pinelli
- Preventive and Social Pediatrics, Verona University, Italy
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28
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Beretta F, Sanna P, Ghielmini M, Marini G, Cavalli F. [Paraplegia following intrathecal chemotherapy]. Schweiz Med Wochenschr 1996; 126:1107-11. [PMID: 8711459] [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: 02/01/2023]
Abstract
The occurrence of major neurologic disturbances is a rare complication of intrathecal cytotoxic drug administration. We describe the case of a 30-year old man with relapsed lymphoblastic lymphoma and CNS involvement who was treated by systemic chemotherapy (ESHAP) and intrathecal injections of methotrexate, cytarabine, thiotepa and hydrocortisone. Thereafter he developed persistent paraplegia with sensory and sphincteric insufficiency. The role of the drug in causing this syndrome was suspected when more common causes, such as a meningeal carcinomatosis, had been excluded by means of CNF analysis and radiological examinations. We review this and other published cases and discuss the possible pathogenesis, as well as the clinical and paraclinical findings in paraplegia following intrathecal chemotherapy. Patients particularly at risk are those who receive intrathecal chemotherapy for over CNS disease rather than as prophylaxis, those who receive several injections and patients who are concomitantly treated with radiotherapy to the brain or systemic high-dose methotrexate or cytarabine.
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Affiliation(s)
- F Beretta
- Servizio Oncologico Cantonale, Ospedale San Giovanni, Bellinzona
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29
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Massoli P, Beretta F, D'Alessio A, Lazzaro M. Temperature and size of single transparent droplets by light scattering in the forward and rainbow regions. Appl Opt 1993; 32:3295-3301. [PMID: 20829947 DOI: 10.1364/ao.32.003295] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A light-scattering anaysis based on Lorenz-Mie theory shows that the size and refractive index of transparent droplets can be determined by measuring the polarized components of the scattered light at two angles in the forward direction. The horizontally polarized cross section C(HH)(33°) depends exclusively on the droplet diameter, whereas the ratio C(HH)(33°)/C(HH)(60°) is a sensitive function of the refractive index and hence of the temperature. On this basis, a new optical system for measuring the temperature, size, and velocity of transparent droplets has been developed. This system can make possible the determination of droplet temperature within a few degrees centigrade. In addition, a critical review of the rainbow method to determine droplet temperature is also presented. These techniques have been applied to vaporizing tetradecane droplets (D(0) = 72 µm), which are heated up in a tube furnace with a temperature range of 20°-200 °C.
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30
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Beretta F, Martinelli G, Cavalli F, Marone C. [Pericardial effusion in patients with malignant neoplasms]. Schweiz Med Wochenschr 1992; 122:1517-23. [PMID: 1411410] [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: 12/26/2022]
Abstract
Pericardial effusions are often present in patients suffering from tumoral diseases, especially lung and breast cancers. Between September 1984 and February 1991 we observed 21 patients with "malignant pericarditis", of whom 57% had carcinoma of the bronchus and 33% a carcinoma of the breast. The symptoms most frequently seen were dyspnea (in 76% of the patients) and tachycardia (67%), accompanied by enlargement of the heart on chest radiograph. The effusions were bloody in all the patients, and the pericardial fluid cytology was positive in 9 of 10 of the lung cancer patients. 16 patients were treated by pericardiocentesis and in 10 of these thiotepa and hydrocortisone were instilled intrapericardially. In this manner it was possible to avoid recurrences of major effusion. The survival of the patients who received the intrapericardial instillation seems to be longer than that of the remaining patients.
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Affiliation(s)
- F Beretta
- Servizio di oncologia, Ospedale San Giovanni, Bellinzona
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31
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Modignani RL, Venegoni M, Beretta F, Fassina S. Thyroid storm with encephalopathic symptoms due to Graves' disease and inappropriate secretion of thyrotropin. Ann Ital Med Int 1992; 7:250-4. [PMID: 1298337] [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: 12/26/2022]
Abstract
A 41-year-old woman is described, first hospitalized in the neurosurgical department for a transient ischemic attack with left hemiparesis followed after 6 hours by tonic-clonic seizures starting from the left hemiface and quickly generalized. Brain computed tomography (CT) scan and magnetic resonance imaging were normal. Clinically the patient presented tremor, tachycardia, generalized muscle weakness, and profuse diaphoresis. T4 and T3 were elevated. The patient was transferred from the neurosurgical to the medical department where a thyroid storm due to autoimmune Graves' disease with normal thyrotropin (TSH) values responsive to thyrotropin-releasing hormone (TRH) stimulation was diagnosed. A syndrome of inappropriate secretion of TSH was suspected in an unusual presentation as autoimmune Graves' hyperthyroidism. The TSH alpha-subunit and alpha-subunit/TSH molar ratio were normal, which supported the diagnosis of non-neoplastic inappropriate secretion of TSH. However, severe autoimmune Graves' hyperthyroidism is very rare indeed because autoantibodies to thyroid antigens are generally non-detectable in such patients. Our patient was treated initially with barbiturates, then with dexamethasone, Lugol's solution, methimazole and propranolol. Treatment of this patient proved difficult, and definitive improvement was obtained only after triiodothyroacetic acid administration, but methimazole and propranolol administration could not be discontinued. Fine needle aspiration biopsies of the thyroid in 2 occasions showed follicular or follicular-papillary proliferation with lymphocytic infiltration as in chronic thyroiditis. The patient is now in good clinical conditions and is followed up regularly. Autoimmune Graves' hyperthyroidism may be associated in extremely rare instances with non neoplastic inappropriate secretion of TSH.
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Affiliation(s)
- R L Modignani
- Divisione Medicina I, Ospedale Fatebenefratelli e Oftalmico, Milano
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32
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Massoli P, Beretta F, D'Alessio A. Single droplet size, velocity, and optical characteristics by the polarization properties of scattered light. Appl Opt 1989; 28:1200-1205. [PMID: 20548640 DOI: 10.1364/ao.28.001200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A method is described for obtaining size, velocity, and optical properties of transparent spherical droplets employing the polarization characteristics of scattered light. A preliminary analysis of the Lorenz-Mie solution, in comparison with geometrical optics, points out the importance of surface waves in the side scattering region between theta = 85 degrees and theta = 120 degrees . Here the horizontal component of scattered light due to surface waves prevails over that due to external reflection for droplets smaller than 100 microm and the polarization ratiogamma = C(HH)/C(VV) can be employed for determining the particle size. A dual-beam system is made of two equal intensity circularly counterotating polarized laser beams which generate a polarized fringe pattern in the interference volume. The polarization ratio of scattered light, at a fixed scattering angle theta, and velocity is obtained by analysis of the bursts produced by individual droplets. The method was tested by determining the size and velocity distribution functions of droplet arrays produced by a Berglund-Liu atomizer operated either in monodisperse or in bidisperse regimes. The angular pattern of the polarization ratio was determined on calibrated streams of transparent droplets with different refractive indices, and the influence of this parameter on the role of surface waves in different angular scattering regions is discussed.
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33
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Barbella R, Beretta F, Ciajolo A, D'Alessio A, Prati M, Tamai R. Spray-swirl interaction and early pyrolysis of kerosene and light oils spray flames produced by simplex pressure atomizer. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/s0082-0784(89)80213-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Romanò M, Spinelli A, Beretta F, Berni F, Rho B, Muzio L. [Efficacy and tolerance of diltiazem in primary pulmonary hypertension. Apropos of a case]. G Ital Cardiol 1987; 17:617-20. [PMID: 3678714] [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: 01/06/2023]
Abstract
The Authors report a case of a serious and symptomatic primary pulmonary hypertension, where the intravenous administration of Diltiazem, at a dosage of 0.3 mg/kg, resulted in an important improvement of haemodynamic parameters. This improvement was confirmed 4 months later on chronic oral therapy with Diltiazem, at a dosage of 180 mg per day. Six months after the beginning of therapy, the patient is totally asymptomatic. Even though further controls are needed, Diltiazem may represent an active drug in the treatment of primary pulmonary hypertension.
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Affiliation(s)
- M Romanò
- Ente Ospedaliero di Garbagnate Milanese, Milano, Servizio di Cardiologia, UCIC
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35
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Beretta F, Cavaliere A, D'Alessio A. Ensemble laser light scattering diagnostics for the study of fuel sprays in isothermal and burning conditions. ACTA ACUST UNITED AC 1985. [DOI: 10.1016/s0082-0784(85)80614-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Nava C, Beretta F, Elena A, Ghizzi A, Pattarin R, Villa L. [Allergic dermatitis caused by enriching agents and other flour additives]. Med Lav 1983; 74:376-9. [PMID: 6229692] [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: 01/19/2023]
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37
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Beretta F, Cavaliere A, D'Alessio A. Soot and pah distributions in oil spray flames, inferred by elastic and inelastic laser light scattering. ACTA ACUST UNITED AC 1982. [DOI: 10.1016/s0082-0784(82)80312-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Briatico-Vangosa G, Beretta F, Bianchi S, Cardani A, Marchisio M, Nava C, Talamo F. [Bronchial asthma caused by 7-aminocephalosporanic acid in workers engaged in the production of cephalosporins]. Med Lav 1981; 72:488-93. [PMID: 6460924] [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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39
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Bertazzi PA, Zocchetti C, Terzaghi GF, Riboldi L, Guercilena S, Beretta F. [Cancerogenic risk in the production of paints and varnishes. Mortality study]. Med Lav 1981; 72:465-72. [PMID: 7335015] [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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40
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Cortona G, Beretta F, Traina G, Nava C. [Preliminary investigation in a pharmaceutical industry: bromelin-induced pathology (author's transl)]. Med Lav 1980; 71:70-5. [PMID: 6450319] [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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41
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Marchisio M, Beretta F, Cortona G, Briatico-Vangosa G. [Methods of investigation and risk evaluation in workers exposed to coffee dust (author's transl)]. Med Lav 1980; 71:76-81. [PMID: 7453644] [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: 01/25/2023]
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42
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Iapichino G, Radrizzani D, Pesenti A, Beretta F, Macchi R. [Erythrocyte glycolysis and total parenteral nutrition (TPN): effects of 2 sources of phosphorus (P)]. Minerva Anestesiol 1978; 44:613-4. [PMID: 108633] [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: 12/13/2022]
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43
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Traina G, Sala C, Beretta F, Cortona G. [Analysis of environmental MBOCA (4,4'-methylene-bis-(orthochloroaniline) pollution in a polyurethane elastomer plant]. Med Lav 1978; 69:530-6. [PMID: 748736] [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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44
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Aprile G, Beretta F, Gabrielli B. [Measurement of the time flow-rate of powders and granulates with an apparatus for practical use]. Boll Chim Farm 1977; 116:606-11. [PMID: 147096] [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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45
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Beretta F, Cortona G, De Bigontina G. [Risk of lead absorption in female workers employed in microwelding]. Med Lav 1977; 68:340-8. [PMID: 593211] [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: 12/23/2022]
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46
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D'Alessio A, Di Lorenzo A, Beretta F, Venitozzi C. Optical and chemical investigations on fuel-rich methane-oxygen premixed flames at atmospheric pressure. ACTA ACUST UNITED AC 1973. [DOI: 10.1016/s0082-0784(73)80086-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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