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Lavell A, Froehlich J, Baylis O, Rotondo A, Benning C. A predicted plastid rhomboid protease affects phosphatidic acid metabolism in Arabidopsis thaliana. Plant J 2019; 99:978-987. [PMID: 31062431 PMCID: PMC6711814 DOI: 10.1111/tpj.14377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/22/2019] [Accepted: 05/01/2019] [Indexed: 05/23/2023]
Abstract
The thylakoid membranes of the chloroplast harbor the photosynthetic machinery that converts light into chemical energy. Chloroplast membranes are unique in their lipid makeup, which is dominated by the galactolipids mono- and digalactosyldiacylglycerol (MGDG and DGDG). The most abundant galactolipid, MGDG, is assembled through both plastid and endoplasmic reticulum (ER) pathways in Arabidopsis, resulting in distinguishable molecular lipid species. Phosphatidic acid (PA) is the first glycerolipid formed by the plastid galactolipid biosynthetic pathway. It is converted to substrate diacylglycerol (DAG) for MGDG Synthase (MGD1) which adds to it a galactose from UDP-Gal. The enzymatic reactions yielding these galactolipids have been well established. However, auxiliary or regulatory factors are largely unknown. We identified a predicted rhomboid-like protease 10 (RBL10), located in plastids of Arabidopsis thaliana, that affects galactolipid biosynthesis likely through intramembrane proteolysis. Plants with T-DNA disruptions in RBL10 have greatly decreased 16:3 (acyl carbons:double bonds) and increased 18:3 acyl chain abundance in MGDG of leaves. Additionally, rbl10-1 mutants show reduced [14 C]-acetate incorporation into MGDG during pulse-chase labeling, indicating a reduced flux through the plastid galactolipid biosynthesis pathway. While plastid MGDG biosynthesis is blocked in rbl10-1 mutants, they are capable of synthesizing PA, as well as producing normal amounts of MGDG by compensating with ER-derived lipid precursors. These findings link this predicted protease to the utilization of PA for plastid galactolipid biosynthesis potentially revealing a regulatory mechanism in chloroplasts.
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Affiliation(s)
- A. Lavell
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
| | - J.E. Froehlich
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
| | - O. Baylis
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
| | - A. Rotondo
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
| | - C. Benning
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824
- DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824
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Tack J, Rotondo A, Meulemans A, Thielemans L, Cools M. Randomized clinical trial: a controlled pilot trial of the 5-HT4 receptor agonist revexepride in patients with symptoms suggestive of gastroparesis. Neurogastroenterol Motil 2016; 28:487-97. [PMID: 27010235 DOI: 10.1111/nmo.12736] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 10/30/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND Gastroparesis is a chronic gastric disorder characterized by delayed gastric emptying without mechanical obstruction, and clinical symptoms as postprandial fullness, early satiety, bloating, nausea, vomiting, and abdominal pain. Prokinetic agents are used for the treatment of gastroparesis. Revexepride, a 5-hydroxytryptamine (serotonin) receptor (5-HT4 R) agonist, could be a good candidate drug for the gastroparesis treatment. AIM In the current phase II, exploratory, double-blind, randomized, stratified, placebo-controlled, repeated dose trial (EudraCT number 2007-004997-23), the efficacy on gastrointestinal symptoms and gastric emptying rate, safety, and pharmacokinetic profile of three oral doses of revexepride (0.02, 0.1, and 0.5 mg administered orally t.i.d. for 4 weeks) was evaluated in trial participants (diabetic and non-diabetic) with upper gastrointestinal tract symptoms suggestive for gastroparesis. METHODS Eighty participants, enrolled in four parallel treatment groups, were asked to score their symptom diary data, gastroparesis cardinal symptom index (GCSI), patient assessment of upper gastrointestinal disorders-symptom severity index (PAGI-SYM), quality of life questionnaires, and meal-related symptom score. Gastric emptying rate was evaluated by (13) C-octanoic acid breath test. KEY RESULTS The severity of the symptoms assessed by means of GCSI and PAGI-SYM decreased at Week 2 and decreased further at Week 4 in all treatment groups including placebo, with similar trends in all treatment groups. Quality of life improved in all treatment groups after 4 weeks of treatment. No differences on gastric emptying rate were shown between any of the active treatment groups and placebo. Revexepride was generally safe and well-tolerated. CONCLUSIONS & INFERENCES Four weeks of revexepride treatment did not improve symptoms or gastric emptying over placebo in patients with symptoms suggestive of gastroparesis.
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Affiliation(s)
- J Tack
- TARGID, University of Leuven, Leuven, Belgium
| | - A Rotondo
- TARGID, University of Leuven, Leuven, Belgium
| | | | | | - M Cools
- Shire-Movetis NV, Turnhout, Belgium
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3
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Di Filippo C, Rossi C, Ferraro B, Maisto R, De Angelis A, Ferraraccio F, Rotondo A, D'Amico M. Involvement of proteasome and macrophages M2 in the protection afforded by telmisartan against the acute myocardial infarction in Zucker diabetic fatty rats with metabolic syndrome. Mediators Inflamm 2014; 2014:972761. [PMID: 25110402 PMCID: PMC4119687 DOI: 10.1155/2014/972761] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 06/18/2014] [Accepted: 06/19/2014] [Indexed: 01/15/2023] Open
Abstract
This study investigated the involvement of proteasome and macrophages M2 in the protection afforded by telmisartan against the acute myocardial infarction in Zucker diabetic fatty (ZDF) rats with metabolic syndrome. ZDF rats were treated for three weeks with telmisartan at doses of 7 and 12 mg/kg/day. After treatment, rats were subjected to a 25 min occlusion of the left descending coronary artery followed by 2 h reperfusion (I/R). At the end of the I/R period, biochemical, immunohistochemical, and echocardiographic evaluations were done. Telmisartan treatment (7 mg/kg and 12 mg/kg) reduced the myocardial infarct size, the expression of proteasome subunits 20S and 26S, and the protein ubiquitin within the heart. The compound has led to an increased M2 macrophage phenotype within the cardiac specimens and a modification of the cardiac cytokine and chemokine profile. This was functionally translated in improved cardiac performance as evidenced by echography after 2 h reperfusion. 7 mg/kg/day telmisartan was sufficient to improve the left ventricular ejection fraction LVEF of the rat heart recorded after I/R (e.g., vehicle 38 ± 2.2%; telmisartan 54 ± 2.7%) and was sufficient to improve the diastolic function and the myocardial performance index up to values of 0.6 ± 0.01 measured after I/R.
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Affiliation(s)
- C. Di Filippo
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, Second University of Naples, 80138 Naples, Italy
| | - C. Rossi
- Radiology, Radiotherapy and Nuclear Medicine Unit, Second University of Naples, 80138 Naples, Italy
| | - B. Ferraro
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, Second University of Naples, 80138 Naples, Italy
| | - R. Maisto
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, Second University of Naples, 80138 Naples, Italy
| | - A. De Angelis
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, Second University of Naples, 80138 Naples, Italy
| | - F. Ferraraccio
- Department of Clinical, Public and Preventive Medicine, Second University of Naples, 80138 Naples, Italy
| | - A. Rotondo
- Radiology, Radiotherapy and Nuclear Medicine Unit, Second University of Naples, 80138 Naples, Italy
| | - M. D'Amico
- Department of Experimental Medicine, Section of Pharmacology “L. Donatelli”, Second University of Naples, 80138 Naples, Italy
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4
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Scott-Van Zeeland AA, Bloss CS, Tewhey R, Bansal V, Torkamani A, Libiger O, Duvvuri V, Wineinger N, Galvez L, Darst BF, Smith EN, Carson A, Pham P, Phillips T, Villarasa N, Tisch R, Zhang G, Levy S, Murray S, Chen W, Srinivasan S, Berenson G, Brandt H, Crawford S, Crow S, Fichter MM, Halmi KA, Johnson C, Kaplan AS, La Via M, Mitchell JE, Strober M, Rotondo A, Treasure J, Woodside DB, Bulik CM, Keel P, Klump KL, Lilenfeld L, Plotnicov K, Topol EJ, Shih PB, Magistretti P, Bergen AW, Berrettini W, Kaye W, Schork NJ. Evidence for the role of EPHX2 gene variants in anorexia nervosa. Mol Psychiatry 2014; 19:724-32. [PMID: 23999524 PMCID: PMC3852189 DOI: 10.1038/mp.2013.91] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 06/19/2013] [Accepted: 06/24/2013] [Indexed: 01/08/2023]
Abstract
Anorexia nervosa (AN) and related eating disorders are complex, multifactorial neuropsychiatric conditions with likely rare and common genetic and environmental determinants. To identify genetic variants associated with AN, we pursued a series of sequencing and genotyping studies focusing on the coding regions and upstream sequence of 152 candidate genes in a total of 1205 AN cases and 1948 controls. We identified individual variant associations in the Estrogen Receptor-ß (ESR2) gene, as well as a set of rare and common variants in the Epoxide Hydrolase 2 (EPHX2) gene, in an initial sequencing study of 261 early-onset severe AN cases and 73 controls (P=0.0004). The association of EPHX2 variants was further delineated in: (1) a pooling-based replication study involving an additional 500 AN patients and 500 controls (replication set P=0.00000016); (2) single-locus studies in a cohort of 386 previously genotyped broadly defined AN cases and 295 female population controls from the Bogalusa Heart Study (BHS) and a cohort of 58 individuals with self-reported eating disturbances and 851 controls (combined smallest single locus P<0.01). As EPHX2 is known to influence cholesterol metabolism, and AN is often associated with elevated cholesterol levels, we also investigated the association of EPHX2 variants and longitudinal body mass index (BMI) and cholesterol in BHS female and male subjects (N=229) and found evidence for a modifying effect of a subset of variants on the relationship between cholesterol and BMI (P<0.01). These findings suggest a novel association of gene variants within EPHX2 to susceptibility to AN and provide a foundation for future study of this important yet poorly understood condition.
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Affiliation(s)
- A A Scott-Van Zeeland
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - C S Bloss
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - R Tewhey
- Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - V Bansal
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - A Torkamani
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - O Libiger
- The Scripps Translational Science Institute, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - V Duvvuri
- Department of Pediatrics, The University of California, San Diego, La Jolla, CA, USA
| | - N Wineinger
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - L Galvez
- The Scripps Translational Science Institute, La Jolla, CA, USA
| | - B F Darst
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - E N Smith
- Department of Pediatrics, The University of California, San Diego, La Jolla, CA, USA
| | - A Carson
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - P Pham
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - T Phillips
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - N Villarasa
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - R Tisch
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - G Zhang
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA
| | - S Levy
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - S Murray
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - W Chen
- Department of Epidemiology, Tulane University, New Orleans, LA, USA
| | - S Srinivasan
- Department of Epidemiology, Tulane University, New Orleans, LA, USA
| | - G Berenson
- Department of Epidemiology, Tulane University, New Orleans, LA, USA
| | - H Brandt
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - S Crawford
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - S Crow
- Department of Psychiatry, University of Minnesota, Minneapolis, MN, USA
| | - M M Fichter
- Roseneck Hospital for Behavioral Medicine, Prien, Germany
| | - K A Halmi
- Eating Disorder Research Program Weill Cornell Medical College, White Plains, NY, USA
| | - C Johnson
- Eating Recovery Center, Denver, CO, USA
| | - A S Kaplan
- Center for Addiction and Mental Health, Toronto, ON, Canada,Department of Psychiatry, Toronto General Hospital, University Health Network, Toronto, ON, Canada,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - M La Via
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - J E Mitchell
- Neuropsychiatric Research Institute, Fargo, ND, USA,Department of Clinical Neuroscience, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - M Strober
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA
| | - A Rotondo
- Department of Psychiatry, Neurobiology, Pharmacology, and Biotechnology, University of Pisa, Pisa, Italy
| | - J Treasure
- Department of Academic Psychiatry, Bermondsey Wing Guys Hospital, University of London, London, UK
| | - D B Woodside
- Department of Psychiatry, Toronto General Hospital, University Health Network, Toronto, ON, Canada,Department of Psychiatry, University of Toronto, Toronto, ON, Canada,Department of Psychology, Florida State University, Tallahassee, FL, USA
| | - C M Bulik
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA,Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - P Keel
- Department of Psychology, Florida State University, Tallahassee, FL, USA
| | - K L Klump
- Department of Psychology, Michigan State University, East Lansing, MI, USA
| | - L Lilenfeld
- Clinical Psychology Program, American School of Professional Psychology at Argosy University, Washington, DC, USA
| | - K Plotnicov
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - E J Topol
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - P B Shih
- Department of Pediatrics, The University of California, San Diego, La Jolla, CA, USA
| | - P Magistretti
- Laboratory of Neuroenergetics and Cellular Dynamics, The University of Lausanne, Lausanne, Switzerland
| | - A W Bergen
- Center for Health Sciences, SRI International, Menlo Park, CA, USA
| | - W Berrettini
- Department of Psychiatry, The University of Pennsylvania, Philadelphia, PA, USA
| | - W Kaye
- Department of Pediatrics, The University of California, San Diego, La Jolla, CA, USA
| | - N J Schork
- The Scripps Translational Science Institute, La Jolla, CA, USA,Scripps Health, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA,Department of Molecular and Experimental Medicine, The Scripps Research Institute, 3344 N Torrey Pines Court, Room 306, La Jolla, CA 92037, USA. E-mail:
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Russo A, Cappabianca S, Iaselli F, Reginelli A, D'Andrea A, Mazzei G, Martiniello C, Grassi R, Rotondo A. Acute abdominal pain in childhood and adolescence: assessing the impact of sonography on diagnosis and treatment. J Ultrasound 2013; 16:201-7. [PMID: 24432175 DOI: 10.1007/s40477-013-0040-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 09/26/2013] [Indexed: 01/05/2023] Open
Abstract
PURPOSE To assess the impact of ultrasonography on defining the diagnostic and therapeutic pathways for pediatric patients admitted to the emergency department for acute abdominal pain. METHODS We performed a retrospective study of all patients aged <16 years with acute abdominal pain who underwent ultrasound examination at our Diagnostic Imaging Department from October 2010 to March 2012. We investigated for each patient the pathway following ultrasound examination and definitive diagnosis. The impact of ultrasonography was defined based on the frequency with which the information resulting from this examination confirmed or denied the diagnostic suspicion made by the emergency physician on the basis of clinical and laboratory findings. RESULTS In 497/729 patients (69 %), ultrasound examination did not determine variations in the diagnostic and therapeutic pathways, either because it confirmed the outcome of clinical examination and laboratory tests, or because, even addressing in the opposite direction to these, the emergency physician did not consider its result because of being particularly alarmed or sufficiently reassured by clinical examination and laboratory tests. In the remaining 232/729 cases (31 %), ultrasound examination determined an increase or a reduction of the provided care and attention (subsequently proved justified in the vast majority of cases) in spite of what was initially assessed based on clinical examination and laboratory tests. CONCLUSIONS The results of our retrospective study demonstrated that ultrasonography was a valuable tool in the management of pediatric patients with acute abdominal pain together with clinical examination and laboratory tests.
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Affiliation(s)
- A Russo
- Department of Diagnostic Imaging, Ospedale San Giuseppe Moscati, Aversa, Italy
| | - S Cappabianca
- Scientific Section of Radiology, Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Clinical and Experimental Internal Medicine "F. Magrassi e A. Lanzara", Primo Policlinico di Napoli, Second University of Naples, 5, Piazza Miraglia, 80131 Naples, Italy
| | - Francesco Iaselli
- Scientific Section of Radiology, Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Clinical and Experimental Internal Medicine "F. Magrassi e A. Lanzara", Primo Policlinico di Napoli, Second University of Naples, 5, Piazza Miraglia, 80131 Naples, Italy ; 118, Corso Umberto I, 80138 Naples, Italy
| | - A Reginelli
- Scientific Section of Radiology, Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Clinical and Experimental Internal Medicine "F. Magrassi e A. Lanzara", Primo Policlinico di Napoli, Second University of Naples, 5, Piazza Miraglia, 80131 Naples, Italy
| | - A D'Andrea
- Department of Diagnostic Imaging, Ospedale San Giuseppe Moscati, Aversa, Italy
| | - G Mazzei
- Department of Diagnostic Imaging, Ospedale San Giuseppe Moscati, Aversa, Italy
| | - C Martiniello
- Department of Diagnostic Imaging, Ospedale San Giuseppe Moscati, Aversa, Italy
| | - R Grassi
- Scientific Section of Radiology, Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Clinical and Experimental Internal Medicine "F. Magrassi e A. Lanzara", Primo Policlinico di Napoli, Second University of Naples, 5, Piazza Miraglia, 80131 Naples, Italy
| | - A Rotondo
- Scientific Section of Radiology, Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Clinical and Experimental Internal Medicine "F. Magrassi e A. Lanzara", Primo Policlinico di Napoli, Second University of Naples, 5, Piazza Miraglia, 80131 Naples, Italy
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Santini M, Fiorelli A, Petrillo M, Vicidomini G, Di Crescenzo V, Frongillo E, Izzo A, Rotondo A. P-215QUANTITATIVE ASSESSMENT OF EMPHYSEMATOUS PARENCHYMA USING MULTIDETECTOR-ROW COMPUTED TOMOGRAPHY IN PATIENTS SCHEDULED FOR ENDOBRONCHIAL TREATMENT WITH ONE-WAY VALVES. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt288.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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7
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Papathanasopoulos A, Rotondo A, Janssen P, Boesmans W, Farré R, Vanden Berghe P, Tack J. Effect of acute peppermint oil administration on gastric sensorimotor function and nutrient tolerance in health. Neurogastroenterol Motil 2013; 25:e263-71. [PMID: 23489975 DOI: 10.1111/nmo.12102] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [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: 10/03/2012] [Accepted: 01/08/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND Menthol reduces intestinal motility in animal studies, an effect that is probably mediated by transient receptor potential channels. Peppermint oil (PO), with menthol as a major constituent, is widely used as a spasmolytic agent in irritable bowel syndrome. In the current study, we investigated the effect of acute PO administration on intragastric pressure (IGP) profiles and gastric sensorimotor functions in health. METHODS Healthy volunteers underwent IGP measurement before and during continuous intragastric infusion of a nutrient drink (n = 13), and gastric barostat studies (n = 13). A single capsule of PO (182 mg) or placebo was administered during the studies in a randomized controlled crossover design. Throughout the studies, healthy volunteers scored 11 epigastric symptoms on a visual analogue scale (VAS); satiation was scored on a 6-point Likert scale during intragastric infusion. KEY RESULTS During fasting, IGP and motility index (MI) of the proximal stomach decreased significantly after PO administration compared with placebo (P < 0.0001 and <0.05, respectively). In contrast, during intragastric infusion of the nutrient drink, no significant differences were detected between PO and placebo in IGP profiles, MI, satiation scores, and epigastric symptoms. The maximum infused volume, gastric compliance or sensitivity to balloon distention did not differ between both treatment arms. However, reduced appetite scores were seen during fasting after PO treatment, as compared with placebo (P = 0.01). Postprandial VAS scores were similar between PO and placebo. CONCLUSIONS & INFERENCES Peppermint oil reduces IGP, proximal phasic contractility, and appetite, with negligible effects on gastric sensitivity, tone, accommodation, and nutrient tolerance in health.
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Affiliation(s)
- A Papathanasopoulos
- Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Gastroenterology, University of Leuven, Leuven, Belgium
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8
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Janssen P, Rotondo A, Mulé F, Tack J. Review article: a comparison of glucagon-like peptides 1 and 2. Aliment Pharmacol Ther 2013; 37:18-36. [PMID: 23121085 DOI: 10.1111/apt.12092] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [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: 06/12/2012] [Revised: 07/09/2012] [Accepted: 09/29/2012] [Indexed: 12/18/2022]
Abstract
BACKGROUND Recent advancements in understanding the roles and functions of glucagon-like peptide 1 (GLP-1) and 2 (GLP-2) have provided a basis for targeting these peptides in therapeutic strategies. AIM To summarise the preclinical and clinical research supporting the discovery of new therapeutic molecules targeting GLP-1 and GLP-2. METHODS This review is based on a comprehensive PubMed search, representing literature published during the past 30 years related to GLP-1 and GLP-2. RESULTS Although produced and secreted together primarily from L cells of the intestine in response to ingestion of nutrients, GLP-1 and GLP-2 exhibit distinctive biological functions that are governed by the expression of their respective receptors, GLP-1R and GLP-2R. Through widespread expression in the pancreas, intestine, nervous tissue, et cetera, GLP-1Rs facilitates an incretin effect along with effects on appetite and satiety. GLP-1 analogues resistant to degradation by dipeptidyl peptidase-IV and inhibitors of dipeptidyl peptidase-IV have been developed to aid treatment of diabetes and obesity. The GLP-2R is expressed almost exclusively in the stomach and bowel. The most apparent role for GLP-2 is its promotion of growth and function of intestinal mucosa, which has been targeted for therapies that promote repair and adaptive growth. These are used as treatments for intestinal failure and related conditions. CONCLUSIONS Our growing understanding of the biology and function of GLP-1, GLP-2 and corresponding receptors has fostered further discovery of fundamental biological function as well as new categories of potent therapeutic medicines.
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Affiliation(s)
- P Janssen
- Translational Research Center for Gastrointestinal Disorders, University of Leuven, Belgium
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9
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Perillo L, Cappabianca S, Montemarano M, Cristallo L, Negro A, Basile A, Iaselli F, Rotondo A. [Craniofacial morphology and obstructive sleep apnoea-hypopnoea syndrome: a craniometric comparative analysis]. Radiol Med 2012. [PMID: 23184246 DOI: 10.1007/s11547-012-0904-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE The aim of this study was to define the relationship between paediatric obstructive sleep apnoea-hypopnea syndrome (OSAHS) and craniofacial morphovolumetric features through comparative craniometric analyses between affected children and controls based on conventional cephalometry. MATERIALS AND METHODS Cephalometric examinations of 40 children affected by OSAHS were retrospectively evaluated. Sixteen craniometric landmarks were identified, and 27 linear and angular indices related to craniofacial morphovolumetric features were measured. Subsequently, the same process of identifying landmarks and measuring indices was performed on the cephalometric examinations of 40 controls. For each index, we then calculated in both groups the mean, standard deviation, standard error and p value. By comparing the values obtained in the two series, we calculated the degree of significance of each difference between children with OSAHS and controls using the Student t test. RESULTS Differences of only 5/27 linear and angular indices considered were not statistically significant between groups, thus confirming susceptibility to the disorder in relation to certain splanchnocranic morphovolumetric features. The most significant differences involved mandibular plane inclination and distance between landmark sella and hyoid bone, a reliable index being the vertical position of the latter. CONCLUSIONS Despite the limitations associated with the 2D nature of conventional cephalometry, mainly related to projection and identification errors, and despite the upright position during examination, we consider the diagnostic value and information content of this technique high, thus reaffirming its role as a first-line imaging investigation in children with sleep-related breathing disorders.
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Affiliation(s)
- L Perillo
- Dipartimento di Odontoiatria, Facoltà di Medicina e Chirurgia, Seconda Università di Napoli, Via De Crecchio 6, 80131 Napoli, Italy
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Cappabianca S, Perillo L, Esposito V, Iaselli F, Tufano G, Thanassoulas TG, Montemarano M, Grassi R, Rotondo A. A computed tomography-based comparative cephalometric analysis of the Italian craniofacial pattern through 2,700 years. Radiol Med 2012; 118:276-90. [PMID: 22580801 DOI: 10.1007/s11547-012-0820-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 09/12/2011] [Indexed: 11/29/2022]
Abstract
The aim of our study was to define the changes in morphovolumetric features of neurocranium, basicranium and splanchnocranium in the population of Campania, southern Italy, over the last 2,700 years. This was a very intense period for this region from both historical and evolutionary perspectives and was marked by the succession of colonisations, dominations and invasions by several European and non-European peoples, events that profoundly influenced the original genetic heritage, which subsequently became more complex. Unlike most previous authors, we based our craniometric comparative analysis on multidetector computed tomography (MDCT) studies of contemporary and ancient series dating to between the seventh and fifth centuries B.C. of skulls found in the Etruscan necropolis of Pompei and Pontecagnano. MDCT is extremely reliable in identifying landmarks and measuring linear and angular indices through the use of multiplanar and tridimensional reformations. While highlighting a remarkable stability of 22/32 of the indices considered, as an effect of the role of the genetic heritage in preserving morphovolumetric features in a given population, statistical analysis showed some interesting results: the main changes concerned the splanchnocranium and the occlusion, indicating a higher sensitivity of these districts to environmental factors, mainly related to diet. Conversely, neurobasicranial complex morphovolumetric features remained amazingly intact. In particular, the neurocranium increased in overall capacity in response to the growing brain and changed shape with a progressive shift to a dolichocranic, flattened frontal pattern; the basicranium shape was preserved, as indicated by the stability of the cranial base (NSBa) angle over time. The splanchnocranium, on the contrary, has undergone a dramatic involution, even conditioning gnathic structures with changes in palatal shape (more acute) and in the relationship between the jaws on the sagittal plane, resulting in increased prevalence of Angle's class I and III malocclusions.
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Affiliation(s)
- S Cappabianca
- Unit of Radiology, Radiotherapy and Nuclear Medicine, Department of Experimental and Clinical Internistic F. Magrassi, A. Lanzara, Second University of Naples, Piazza Miraglia 5, 80131, Naples, Italy
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11
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Iaselli F, Rea G, Cappabianca S, Fabozzi G, Montemarano M, Vitale C, Stanziola AA, Muto R, Rotondo A. Adult-onset pulmonary involvement in Niemann-Pick disease type B. Monaldi Arch Chest Dis 2012; 75:235-40. [PMID: 22462311 DOI: 10.4081/monaldi.2011.211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Niemann-Pick disease type B is caused by a deficiency in acid sphingomyelinase activity; among the six variants of Niemann-Pick disease known to date, it is the most frequently associated with lung involvement, a major cause of morbidity and mortality in this subtype in patients of all ages. Nevertheless, the vast majority of reports in the literature concern infantile forms, while less reported is, for several reasons, the onset in adults being consequently still poorly understood and characterized its clinical, radiographic and functional manifestations. We report a case of a 37 years-old female patient affected by subtype B since she was an infant, operated for aortic valve replacement two years before and came to our attention for the onset of a worsening exertional dyspnoea which proved, through a series of functional tests and radiological exams, to be a consequence of the diffuse lung involvement by the metabolic disorder; we performed a review on this topic through a Medline search of all the available "adult-onset" case reports published since the first description in 1964, also considering the possible association between NPDB and, more generally lysosomal storage disorders, and the valvular disease, already suggested by several Authors in previous works.
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Affiliation(s)
- F Iaselli
- Department of Clinical Internal Medicine F. Magrassi-L. Lanzara, Science Section of Radiology, Seconda Università degli Studi di Napoli, Primo Policlinico di Napoli, Italy.
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12
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Abstract
We set out to determine the effect of peptide YY(3-36) (PYY(3-36)) on the gastric muscle tone in conscious rats by measuring intragastric pressure (IGP) during intragastric nutrient drink infusion. After an overnight fast, a chronically implanted gastric fistula was connected to a custom-made nutrient drink infusion system and a catheter to measure IGP. IGP was measured before and during the infusion of a nutrient drink (Nutridrink; 0.5 ml/min) until 10 ml was infused. Rats were treated with PYY(3-36) (0, 33, and 100 pmol·kg(-1)·min(-1)) in combination with a subcutaneous injection of the Y(2) receptor antagonists JNJ31020028 (10 mg/kg) or BIIE0246 (2 mg/kg). Experiments were also performed after subdiaphragmatic vagotomy and after pretreatment with 3 ml of nutrient drink (to mimic a fed state). IGP was compared as the average IGP during nutrient infusion, represented as means ± SE and compared using ANOVA. PYY(3-36) dose dependently increased the IGP during nutrient infusion (4.7 ± 0.3, 5.7 ± 0.5 and 7.3 ± 0.7 mmHg; P < 0.01) while JNJ31020028 and BIIE0246 could block this increase [4.4 ± 0.5 (P < 0.001) and 4.8 ± 0.4 (P < 0.05) mmHg, respectively]. Also in vagotomized rats, PYY(3-36) was able to significantly increase the IGP during, an effect attenuated by JNJ31020028. BIIE0246 and JNJ31020028 were not able to decrease the IGP when no PYY(3-36) was administered. PYY(3-36) increased gastric tone through an Y(2) receptor-mediated mechanism that does not involve the vagus nerve. Y(2) receptor antagonists were not able to decrease gastric tone without exogenous administration of PYY(3-36), indicating that Y(2) receptors do not play a crucial role in the determination of gastric tone in physiological conditions.
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Affiliation(s)
- P Janssen
- Translational Research Center for Gastrointestinal Disorders, University of Leuven, Leuven, Belgium
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13
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Reginelli A, Mandato Y, Cavaliere C, Pizza NL, Russo A, Cappabianca S, Brunese L, Rotondo A, Grassi R. Three-dimensional anal endosonography in depicting anal-canal anatomy. Radiol Med 2012; 117:759-71. [PMID: 22228126 DOI: 10.1007/s11547-011-0768-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 05/25/2011] [Indexed: 01/17/2023]
Abstract
PURPOSE This report describes the advantages of 3D anal endosonography in depicting the normal anatomy of the anal canal in relation to sex and age. MATERIALS AND METHODS A retrospective study was performed of 85 patients, 33 men and 52 women, previously examined with 3D anal ultrasound (US) for clinically suspected anorectal disease but found to be negative. The examinations were performed with a Bruel and Kjaer US system with a 2050 transducer, scanning from the anorectal junction to the subcutaneous portion of the external anal sphincter (EAS). The 3D reconstructions provided an estimation of sphincter length in the anterior and posterior planes, and axial 2D images enabled calculation of the thickness of the internal anal sphincter (IAS) and EAS in the anterior, posterior and lateral transverse planes. RESULTS Distribution of the sphincter complex is asymmetric in both sexes: the EAS and IAS are significantly shorter in females, especially in the anterior longitudinal plane (p=0.005 and p<0.001, respectively). EAS and IAS thickness increases with age, especially the lateral IAS (R(2)=0.37, p<0.001) and the posterior EAS (R(2)=0.29, p=0.01). CONCLUSIONS A good knowledge of anal-canal anatomy is essential to detect sphincter abnormalities when assessing pelvic floor dysfunction.
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Affiliation(s)
- A Reginelli
- Dipartimento di Internistica Clinica e Sperimentale F. Magrassi e A. Lanzara, Sezione di Radiodiagnostica, Seconda Università degli Studi di Napoli, P.zza Miraglia 2, 80138, Napoli, Italy
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14
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Cinci L, Faussone-Pellegrini MS, Rotondo A, Mulè F, Vannucchi MG. GLP-2 receptor expression in excitatory and inhibitory enteric neurons and its role in mouse duodenum contractility. Neurogastroenterol Motil 2011; 23:e383-92. [PMID: 21752156 DOI: 10.1111/j.1365-2982.2011.01750.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [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: 12/14/2022]
Abstract
BACKGROUND Glucagon-like peptide 2 (GLP-2), a nutrient-responsive hormone, exerts various actions in the gastrointestinal tract that are mediated by a G-protein coupled receptor called GLP-2R. A little information is available on GLP-2R expression in enteric neurons and nothing on the interstitial cells of Cajal (ICC). METHODS We investigated presence and distribution of the GLP-2R in the mouse duodenum by immunohistochemistry and the potential motor effects of GLP-2 on the spontaneous and neurally evoked mechanical activity. KEY RESULTS The GLP-2R was expressed by the myenteric and submucosal neurons. Labelling was also present in nerve varicosities within the circular muscular layer and at the deep muscular plexus (DMP). No immunoreactive nerve fiber was seen within the longitudinal muscle layer. The GLP-2R-positive neurons were either excitatory (SP- and choline-acetyltransferase-positive) or inhibitory (vasoactive intestinal polypeptide and nNOS-positive). The ICC, both at the myenteric plexus and at the DMP, never expressed GLP-2R but, especially those at the DMP, were surrounded by GLP-2R-positive nerve varicosities co-expressing either excitatory or inhibitory neurotransmitters. Quantitative analysis demonstrated a consistent prevalence of GLP-2R on the excitatory pathways. In agreement, the functional results showed that the administration of GLP-2 in vitro caused decrease of the spontaneous contractions mediated by nitric oxide release and reduction of the evoked cholinergic contractions. CONCLUSIONS & INFERENCES The present findings indicate that the GLP-2R is expressed by inhibitory and excitatory neurons, the GLP-2 inhibits the muscle contractility likely decreasing cholinergic neurotransmission and increasing nitric oxide production, and this effect is possibly mediated by the ICC-DMP recruitment.
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Affiliation(s)
- L Cinci
- Department of Anatomy, Histology and Forensic Medicine, Section of Histology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
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D’Andrea A, Reginelli A, Petrillo M, Iacobellis F, Cappabianca S, Grassi R, Brunese L, Rotondo A. Prognostic value of Multidetector Computed Tomography of cirrhosis. BMC Geriatr 2011. [PMCID: PMC3194397 DOI: 10.1186/1471-2318-11-s1-a7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Cuccurullo V, Cascini G, Rossi A, Tamburrini O, Rotondo A, Mansi L. Pathophysiological premises to radiotracers for bone metastases. Q J Nucl Med Mol Imaging 2011; 55:353-373. [PMID: 21738112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Aim of our paper is to review the most important radio-compounds that can be successfully used to detect and/or characterize bone metastases. From a didactic point of view, we made a distinction between two main categories , the first allowing to individuate bone's reaction (osteotropic agents), the second trying to detect metastatic tumor cells (oncotropic agents). A wide description of the most diffuse Tc-99m diphosphonates , including analysis of uptake mechanisms and pharmacokinetics, is followed by a brief report on pathophysiological premises to the clinical use of F-18 fluoride and of specific (radioiodine, radiolabeled somatostatin or cathecolamine analogues) or non specific, as Tc-99m sestamibi, F-18 fluorodeoxhyglucose, F-18 choline, F-18 thymidine) oncotropic agents. At the end, the possibility to use diagnostic radiotracers to act both in recruiting patients with bone metastases undergoing radionuclide therapy and for their dosimetric evaluation is also discussed.
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Affiliation(s)
- V Cuccurullo
- Nuclear Medicine Division, Second University of Naples, Naples, Italy
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17
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Rotondo A, Janssen P, Tack J. Effect of liraglutide on intragastric pressure (IGP) and satiation during intragastric nutrient drink infusion in healthy volunteers. Appetite 2011. [DOI: 10.1016/j.appet.2011.05.256] [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: 10/18/2022]
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18
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Gatta G, Iaselli F, Parlato V, Di Grezia G, Grassi R, Rotondo A. Differential diagnosis between fibroadenoma, giant fibroadenoma and phyllodes tumour: sonographic features and core needle biopsy. Radiol Med 2011; 116:905-18. [DOI: 10.1007/s11547-011-0672-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Accepted: 05/20/2010] [Indexed: 11/29/2022]
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Bosco D, Plastino M, Bosco F, Fava A, Rotondo A. Daily motor performance after switching levodopa to melevodopa: an open-label on advanced Parkinson's disease with "delayed-on" and/or"wearing-off". Minerva Med 2011; 102:125-132. [PMID: 21483399] [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: 05/30/2023]
Abstract
AIM Aim of the present study was to evaluate the clinical efficacy, tolerability and quality-of-life measures to melevodopa in advanced Parkinson's disease (PD) with motor fluctuations (MFs). METHODS A total of 37 patients with advanced PD and MFs participated in the study. Patients were switched from standard l-dopa/carbidopa to melevodopa and were treated for 10 weeks. RESULTS Assessment of "On-Day" time demonstrated improvement to about 0.7 hour in the melevodopa treatment. The benefit was greater in patients with "delayed-on" (P=0.002) and especially in those with both "delayed-on" and "wearing-off" (P<0.001). Most patients showed a significant improvement in PDQ-39 total score (P=0.002) and PSI distress domain (P<0.001). Instead, not significant difference was observed in patients with only wearing-off. CONCLUSION These data show that melevodopa is an effective agent for improving daily motor performance and quality-of-life in PD with "delayed-on", also in association with "wearing-off".
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Affiliation(s)
- D Bosco
- Operative Unit of Neurology, S. Giovanni di Dio, Crotone, Italy.
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20
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Cuccurullo V, Cascini GL, Tamburrini O, Mansi L, Rotondo A. Less frequent requests for In-111 pentreotide and its brothers of endocrinological interest. MINERVA ENDOCRINOL 2011; 36:41-52. [PMID: 21460786] [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: 05/30/2023]
Abstract
The somatostatin receptor scintigraphy (SRS), using octreotide radiolabelled with 111In (octreoscan, OCTs), is a consolidated diagnostic procedure in patients with neuroendocrine tumors. A higher accuracy has been demonstrated with single photon emission computed tomography-CT, while a further improvement has been obtained with positron emission tomography (PET)-CT, using somatostatin analogues radiolabeled with 68Ga, significantly increasing the number of detected lesions. Although the well-known presence of an OCTs uptake in many benign diseases, when in an active phase, the application of SRS in these patients did not find any clinical relevance yet. In this paper we discuss two fields of endocrinological interest where SRS could play a clinical role. In patients with Graves exophtalmos, the capability to differentiate between active and non-active disease can be helpful in define prognosis and therapeutic strategies. In patients with endocrine paraneoplastic syndromes (PNS), SRS can help in finding the underlying neoplasm, contributing to its characterization as premise to a therapeutic choice. The possible role of a surgery guided by OCTs is also explained and suggested. The incremental value of PET-CT with Ga-68 peptides is hypothesized to reduce the number of unknown neoplastic lesions frequently present in patients with PNS.
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Affiliation(s)
- V Cuccurullo
- Department of Radiological Sciences, University of Catanzaro, Catanzaro, Italy
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21
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Coppola M, Porto A, De Santo D, De Fronzo S, Grassi R, Rotondo A. Influenza A virus: radiological and clinical findings of patients hospitalised for pandemic H1N1 influenza. Radiol Med 2011; 116:706-19. [PMID: 21225362 PMCID: PMC7102231 DOI: 10.1007/s11547-011-0622-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Accepted: 05/26/2010] [Indexed: 11/07/2022]
Abstract
Purpose This paper describes the radiological and clinical findings identified in a group of patients with H1N1 influenza. Materials and methods Between May and mid-November 2009, 3,649 patients with suspected H1N1 influenza presented to our hospital. Our study population comprised 167 (91 male, 76 female patients, age range 11 months to 82 years; mean age 29 years) out of 1,896 patients with throat swab positive for H1N1 and clinical and laboratory findings indicative of viral influenza. All 167 patients were studied by chest X-ray (CXR), and 20 patients with positive CXR and worsening clinical condition also underwent computed tomography (CT). The following findings were evaluated on both modalities: interstitial reticulation (IR), nodules (N), ground-glass opacities (GGO), consolidations (CONS), bacterial superinfection and pulmonary complications. Results Ninety of 167 patients had positive CXR results. Abnormalities identified on CXR, variously combined and distributed, were as follows: 53 IR, 5 N, 13 GGO, 50 CONS; the predominant combination was represented by six GGO with CONS. Of the 20 CXR-positive cases also studied by CT, 17 showed pathological findings. The abnormalities identified on CT, variously combined and distributed, were as follows: 14 IR, 2 N, 5 GGO; the predominant combination was 10 GGO with CONS. Despite the differences between the two modalities, the principle radiological findings of bacterial superinfection were tree-in-bud pattern, consolidation with air bronchogram, and pleural and pericardial effusion. Fifteen of the 20 patients studied by both CXR and chest CT showed respiratory complications with bilateral and diffuse CONS on CXR and CT. Six of 15 died: 4/6 of acute respiratory distress syndrome and 2/6 of multiple organ failure. Conclusions Our study describes the radiological and clinical characteristics of a large population of patients affected by H1N1 influenza. CXR and chest CT identified the site and extent of the pulmonary lesions and documented signs of bacterial superinfection and pulmonary complications.
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Affiliation(s)
- M Coppola
- U.O.C. Diagnostica per immagini, A.O.R.N. D. Cotugno, Via Quagliariello 54, 80131, Napoli, Italy
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22
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Cappabianca S, Granata V, Di Grezia G, Mandato Y, Reginelli A, Di Mizio V, Grassi R, Rotondo A. The role of nasoenteric intubation in the MR study of patients with Crohn's disease: our experience and literature review. Radiol Med 2010; 116:389-406. [PMID: 20981501 DOI: 10.1007/s11547-010-0605-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 02/15/2010] [Indexed: 02/08/2023]
Abstract
PURPOSE The aim of this study was to compare magnetic resonance (MR) enteroclysis with MR enterography to verify whether nasoenteric intubation in patients affected by Crohn's disease can provide supplementary information to that afforded by MR study of the small bowel. MATERIALS AND METHODS In a 12-month period, 40 patients (28 women and 12 men, mean age 35 years) affected by Crohn's disease underwent MR imaging. Distension of the small-bowel loops was obtained by administering polyethylene glycol: 15 patients were given the mixture by mouth (MR enterography), whereas the remaining 25 received it via nasoenteric intubation (MR enteroclysis). Our study protocol included morphological sequences taken before and after intravenous injection of contrast medium and real-time functional sequences. Accuracy criteria for the execution of the examinations were designed according to 11 bands. RESULTS Complete distension of the small-bowel loops was obtained in the 25 patients who underwent MR enteroclysis, with the additional advantage of a suitable assessment of those segments involved in the pathological process. This was not the case for the 15 patients who underwent MR enterography, because both the jejunum and the small-bowel loops appeared partially collapsed. CONCLUSIONS MR enteroclysis is the most effective technique for studying the small bowel in Crohn's disease, as it not only provides a suitable morphological assessment but also supplies functional information.
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Affiliation(s)
- S Cappabianca
- Dipartimento di Internistica clinica e sperimentale Magrassi-Lanzara, Sezione di Radiodiagnostica e Radioterapia, Seconda Università degli Studi di Napoli, P.zza Miraglia 2, 80138, Napoli, Italy
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23
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Baldassano S, Tesoriere L, Rotondo A, Serio R, Livrea MA, Mulè F. Inhibition of the mechanical activity of mouse ileum by cactus pear (Opuntia Ficus Indica, L, Mill.) fruit extract and its pigment indicaxanthin. J Agric Food Chem 2010; 58:7565-7571. [PMID: 20518499 DOI: 10.1021/jf100434e] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We investigated, using an organ bath technique, the effects of a hydrophilic extract from Opuntia ficus indica fruit pulp (cactus fruit extract, CFE) on the motility of mouse ileum, and researched the extract component(s) responsible for the observed responses. CFE (10-320 mg of fresh fruit pulp equivalents/mL of organ bath) reduced dose-dependently the spontaneous contractions. This effect was unaffected by tetrodotoxin, a neuronal blocker, N(omega)-nitro-l-arginine methyl ester, a nitric oxide synthase blocker, tetraethylammonium, a potassium channel blocker, or atropine, a muscarinic receptor antagonist. CFE also reduced the contractions evoked by carbachol, without affecting the contractions evoked by high extracellular potassium. Indicaxanthin, but not ascorbic acid, assayed at concentrations comparable with their content in CFE, mimicked the CFE effects. The data show that CFE is able to exert direct antispasmodic effects on the intestinal motility. The CFE inhibitory effects do not involve potassium channels or voltage-dependent calcium channels but rather pathways of calcium intracellular release. The fruit pigment indicaxanthin appears to be the main component responsible for the CFE-induced effects.
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Affiliation(s)
- S Baldassano
- Dipartimento di Biologia cellulare e dello Sviluppo, Università di Palermo, 90128 Palermo, Italy
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Amato A, Cinci L, Rotondo A, Serio R, Faussone-Pellegrini MS, Vannucchi MG, Mulè F. Peripheral motor action of glucagon-like peptide-1 through enteric neuronal receptors. Neurogastroenterol Motil 2010; 22:664-e203. [PMID: 20158614 DOI: 10.1111/j.1365-2982.2010.01476.x] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [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: 02/08/2023]
Abstract
BACKGROUND Glucagon-like peptide-1 (GLP-1) is a proglucagon-derived peptide expressed in the enteroendocrine-L cells of small and large intestine and released in response to meal ingestion. Glucagon-like peptide-1 exerts inhibitory effects on gastrointestinal motility through vagal afferents and central nervous mechanisms; however, no data is available about a direct influence on the gastrointestinal wall. Our aim was to investigate the effects of GLP-1 on the spontaneous and evoked mechanical activity of mouse duodenum and colon and to identify the presence and distribution of GLP-1 receptors (GLP-1R) in the muscle coat. METHODS Organ bath recording technique and immunohistochemistry were used. KEY RESULTS Glucagon-like peptide-1 (up to the concentration of 1 mumol L(-1)) failed to affect spontaneous mechanical activity. It caused concentration-dependent reduction of the electrically evoked cholinergic contractions in circular smooth muscle of both intestinal segments, without affecting the longitudinal muscle responses. Glucagon-like peptide-1 inhibitory effect was significantly antagonized by exendin (9-39), an antagonist of GLP-1R. In both intestinal preparations, GLP-1 effect was not affected by guanethidine, a blocker of adrenergic neurotransmission, but it was significantly reduced by N(omega)-nitro-l-arginine methyl ester, inhibitor of nitric oxide (NO) synthase. Glucagon-like peptide-1 failed to affect the contractions evoked by exogenous carbachol. Immunohistochemistry demonstrated GLP-1R expression in the enteric neurons. Furthermore, 27% of GLP-1R immunoreactive (IR) neurons in the duodenum and 79% of GLP-1R-IR neurons in the colon, co-expressed nNOS. CONCLUSIONS & INFERENCES The present results suggest that GLP-1 is able to act in the enteric nervous system by decreasing the excitatory cholinergic neurotransmission through presynaptic GLP-1Rs, which modulate NO release.
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Affiliation(s)
- A Amato
- Dipartimento di Biologia cellulare e dello Sviluppo, Università di Palermo, 90128 Palermo, Italy
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Sasso FC, Rambaldi PF, Carbonara O, Nasti R, Torella M, Rotondo A, Torella R, Mansi L. Perspectives of nuclear diagnostic imaging in diabetic cardiomyopathy. Nutr Metab Cardiovasc Dis 2010; 20:208-216. [PMID: 19939648 DOI: 10.1016/j.numecd.2009.08.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 07/23/2009] [Accepted: 08/31/2009] [Indexed: 12/21/2022]
Abstract
Diabetic cardiomyopathy is a ventricular dysfunction in the absence of coronary artery disease, valvular or hypertensive heart disease. The mechanisms underlying diabetic cardiomyopathy may involve metabolic disturbances, myocardial fibrosis, small vessel disease, microcirculation abnormalities, cardiac autonomic neuropathy and insulin resistance. Diagnostic problems emerge because no specific disease pattern characterizes the disease and because there may be coexistence in diabetes of coronary artery disease and hypertension as independent but compounding causes of biochemical, anatomical and functional alterations impairing cardiac function. In this paper we will review the role of nuclear imaging today, concentrating on the diagnostic capabilities of radionuclide ventriculography, to study the effect of insulin resistance and, more extensively, gated-single photon emission computed tomography with Tc-99m labelled agents. A broad analysis will be dedicated to: 1) positron emission tomography using perfusion agents, with the potential to quantify resting and stress blood flow and coronary flow reserve; 2) radionuclide procedures evaluating aerobic and anaerobic cardiac metabolism; and 3) cardiac neurotransmission imaging, studying the autonomic neuropathy.
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Affiliation(s)
- F C Sasso
- Unit of Internal Medicine, Department of Clinical and Experimental Medicine Magrassi-Lanzara, Second University of Naples, Naples, Italy.
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Scialpi M, Cappabianca S, Rotondo A, Scalera GB, Barberini F, Cagini L, Donato S, Brunese L, Piscioli I, Lupattelli L. Pulmonary congenital cystic disease in adults. Spiral computed tomography findings with pathologic correlation and management. Radiol Med 2010; 115:539-50. [PMID: 20058095 DOI: 10.1007/s11547-010-0467-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2009] [Accepted: 04/03/2009] [Indexed: 12/19/2022]
Abstract
PURPOSE The aim of this study was to assess the computed tomography (CT) features of intrapulmonary congenital cystic diseases in adults and to correlate the imaging features with the pathological findings, with emphasis on the oncogenic potential of the lesions. MATERIALS AND METHODS We retrospectively reviewed the CT scans in three institutions from August 1996 to December 2008, of nine patients (six men, three women; mean age 48.6 years; range 26-75 years) who had histological diagnosis of pulmonary cystic disease after surgery. Six patients had a diagnosis of intrapulmonary bronchogenic cyst (IBC), and three had a type-I cystic adenomatoid malformation (CAM). In one case, intralobar sequestration (ILS) was associated with type-I CAM. RESULTS Three patients were symptomatic and six were asymptomatic. On CT scans, IBCs showed homogeneous fluid attenuation (n=2), air-fluid level (n=2), air attenuation (n=1) or soft-tissue attenuation (n=1). The surrounding lung tissue showed areas of band-like linear attenuation in three IBCs, atelectasia in two and mucocele-like areas in one. On CT, type-I CAM appeared as a unilocular cystic lesion with air-fluid level (n=1) or air content (n=1). Both cases had thin walls surrounded by normal lung parenchyma. ILS appeared as a fluid-filled cyst with afferent and efferent vessels. Of the six IBCs, one occurred in the upper right lobe, two in the middle lobe and three in the lower right lobe. Of the three type-I CAMs, one was in the upper left lobe and one in the middle lobe. The type-I CAM associated with ILS was located in the left lower lobe. CONCLUSIONS The similar CT patterns preclude differentiation between IBC and type-I CAM. Surgical resection of all intrapulmonary cystic lesions detected in adults is mandatory because type-I CAM is a precursor of mucinous bronchioloalveolar carcinoma.
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Affiliation(s)
- M Scialpi
- Department of Surgical, Radiologic and Odontostomatologic Sciences, Section of Diagnostic and Interventional Radiology, University of Perugia, S. Maria della Misericordia Hospital, S. Andrea delle Fratte, 06156, Perugia, Italy.
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Jacobs MJ, Roesch S, Wonderlich SA, Crosby R, Thornton L, Wilfley DE, Berrettini WH, Brandt H, Crawford S, Fichter MM, Halmi KA, Johnson C, Kaplan AS, Lavia M, Mitchell JE, Rotondo A, Strober M, Woodside DB, Kaye WH, Bulik CM. Anorexia nervosa trios: behavioral profiles of individuals with anorexia nervosa and their parents. Psychol Med 2009; 39:451-461. [PMID: 18578898 PMCID: PMC3714180 DOI: 10.1017/s0033291708003826] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Anorexia nervosa (AN) is associated with behavioral traits that predate the onset of AN and persist after recovery. We identified patterns of behavioral traits in AN trios (proband plus two biological parents). METHOD A total of 433 complete trios were collected in the Price Foundation Genetic Study of AN using standardized instruments for eating disorder (ED) symptoms, anxiety, perfectionism, and temperament. We used latent profile analysis and ANOVA to identify and validate patterns of behavioral traits. RESULTS We distinguished three classes with medium to large effect sizes by mothers' and probands' drive for thinness, body dissatisfaction, perfectionism, neuroticism, trait anxiety, and harm avoidance. Fathers did not differ significantly across classes. Classes were distinguished by degree of symptomatology rather than qualitative differences. Class 1 (approximately 33%) comprised low symptom probands and mothers with scores in the healthy range. Class 2 ( approximately 43%) included probands with marked elevations in drive for thinness, body dissatisfaction, neuroticism, trait anxiety, and harm avoidance and mothers with mild anxious/perfectionistic traits. Class 3 (approximately 24%) included probands and mothers with elevations on ED and anxious/perfectionistic traits. Mother-daughter symptom severity was related in classes 1 and 3 only. Trio profiles did not differ significantly by proband clinical status or subtype. CONCLUSIONS A key finding is the importance of mother and daughter traits in the identification of temperament and personality patterns in families affected by AN. Mother-daughter pairs with severe ED and anxious/perfectionistic traits may represent a more homogeneous and familial variant of AN that could be of value in genetic studies.
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Affiliation(s)
- M J Jacobs
- University of California, San Diego (UCSD) Eating Disorders Treatment and Research Center, La Jolla, CA, USA.
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Cappabianca S, Colella G, Russo A, Pezzullo M, Reginelli A, Iaselli F, Rotondo A. Maxillofacial fibrous dysplasia: personal experience with gadoliniumenhanced magnetic resonance imaging. Radiol Med 2008; 113:1198-210. [PMID: 18836864 DOI: 10.1007/s11547-008-0329-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Accepted: 03/06/2008] [Indexed: 10/21/2022]
Abstract
PURPOSE The authors sought to identify radiological criteria assisting in the diagnosis of craniofacial fibrous dysplasia and differential diagnosis of fibro-osseous lesions by comparing computed tomography (CT) and magnetic resonance imaging (MRI) findings and histological results in 23 patients with presumed fibrous dysplasia. MATERIALS AND METHODS From February 2000 to March 2005, 23 patients (17 women and six men, aged 9-66 years) with facial bone disease underwent CT and MRI studies. Imaging findings were compared with the results of histological examination performed within 1 month of the radiological diagnosis. RESULTS The combination of CT and MRI led to a presumptive diagnosis of fibrous dysplasia in all cases, but histology confirmed the diagnosis in 18 cases only. In two cases that had initially been considered cyst-like variants of fibrous dysplasia and were associated with irregular enhancement at MRI, histology characterised the lesions as single locations of multiple myeloma. In one case, targeted biopsy of areas showing intense enhancement led to a diagnosis of low-grade fibrosarcoma; in the remaining two cases, the definitive diagnoses were ossifying fibroma and myeloproliferative disease. CONCLUSIONS MRI proved useful in differentiating fibrous dysplasia from other bone diseases, defining clinical behaviour, identifying neoplastic foci within dysplastic tissue and distinguishing benign from malignant bone lesions. The authors suggest a broader use of contrast-enhanced MRI for the diagnosis and follow-up of dysplastic lesions of the facial bones and for planning appropriate surgical treatment.
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Affiliation(s)
- S Cappabianca
- DU di Internistica Clinica e Sperimentale, Via Amendola, 8, 81055 S. Maria C.V., Caserta, Italy.
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Muto M, Perrotta V, Guarnieri G, Lavanga A, Vassallo P, Reginelli R, Rotondo A. Vertebroplasty and kyphoplasty: friends or foes? Radiol Med 2008; 113:1171-84. [PMID: 18836816 DOI: 10.1007/s11547-008-0301-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2007] [Accepted: 11/05/2007] [Indexed: 12/12/2022]
Abstract
PURPOSE This paper aims to compare vertebroplasty and kyphoplasty by illustrating the two techniques, analysing the results and discussing the indications in relation to the type of fracture. MATERIALS AND METHODS Vertebroplasty was performed on 805 vertebral bodies in 485 patients affected by osteoporosis (310), metastasis (160) and vertebral haemangioma (15). The approach was unipedicular in 365 patients and bipedicular in 120 patients. Biopsies were obtained in patients with no known primary cancer (75). Kyphoplasty was performed in 39 patients with Magerl type A1 and A3 fractures within 3 months from the trauma. A bipedicular approach was used in all cases. RESULTS Outcomes were assessed on the basis of the visual analogue scale and the Oswestry Disability Index. In patients treated with vertebroplasty, success rates at 24-72 h were 90% for osteoporotic fractures, 100% for vertebral haemangiomas and 77% for metastatic fractures. Extravertebral vascular or discal leakage of cement occurred in 39 patients, but only two of them reported radicular pain due to epidural involvement. Osteoporotic patients developed new vertebral fractures at adjacent levels in 25 cases and at distal levels in 19 cases. In patients treated with kyphoplasty, pain relief was achieved within one month after treatment in 90% of cases. None of the patients wore orthotic braces after treatment, and no vertebral collapse was observed. CONCLUSIONS Vertebroplasty and kyphoplasty are both useful in the management of vertebral pain. In light of our experience, vertebroplasty is better indicated for vertebral fractures due to osteoporosis, haemangioma or metastasis on account of its simplicity and minimal invasiveness. Kyphoplasty is suggested in acute traumatic fractures of type A1 and A3 according to Magerl, as it allows recovery of vertebral stability and a better distribution of the cement.
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Affiliation(s)
- M Muto
- U.O.C. di Neuroradiologia, A.O.R.N. A. Cardarelli, Via Cardarelli, 80100 Napoli, Italy.
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De Rosa R, Sacco M, Tedeschi C, Pepe R, Capogrosso P, Montemarano E, Rotondo A, Runza G, Midiri M, Cademartiri F. Prevalence of coronary artery intramyocardial course in a large population of clinical patients detected by multislice computed tomography coronary angiography. Acta Radiol 2008; 49:895-901. [PMID: 18608013 DOI: 10.1080/02841850802199825] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Intramyocardial course, an inborn coronary anomaly, is defined as a segment of a major epicardial coronary artery that runs intramurally through the myocardium; in particular, we distinguish myocardial bridging, in which the vessel returns to an epicardial position after the muscle bridge, and intramyocardial course, which is described as a vessel running and ending in the myocardium. PURPOSE To evaluate the prevalence of myocardial bridging and intramyocardial course of coronary arteries as defined by multidetector computed tomography (MDCT) angiography. MATERIAL AND METHODS The study population consisted of 242 consecutive patients (211 men, 31 women; mean age 59+/-6 years) with atypical chest pain admitted to our hospital between December 2004 and September 2006. All MDCT examinations were performed using a 16-detector-row scanner (Aquilion 16 CFX; Toshiba Medical System, Tokyo, Japan). Patients with heart rate above 65 bpm received 50 mg atenolol orally for 3 days prior to the MDCT scan, or they increased their usual therapy with beta-blockers, in order to obtain a prescan heart rate <60 bpm. Curved multiplanar and 3D volume reconstructions were performed to explore coronary anatomy. RESULTS In 235 patients, the CT scan was successful and images were appropriate for evaluation. The prevalence of myocardial bridging and intramyocardial course of coronary arteries was 18.7% (47 cases) in our patient population. In 30 segments (63.8%), the vessels ran and ended in the myocardium. In the remaining 17 segments (36.2%), the vessels returned to an epicardial position after the muscle bridge. We found no difference in the prevalence of this inborn coronary anomaly when comparing different clinical characteristics of the study population (sex, age, body-mass index [BMI], etc.). The mean length of the subepicardial artery was 7 mm (range 5-12 mm), and the mean depth in the diastolic phase was 1.9 mm (range 1.2-2.3 mm). There was no significant difference of diameter in these segments between the different R-R phases examined. CONCLUSION Our study is in agreement with major angiographic literature reporting a prevalence of myocardial bridging and intramyocardial course between 0.5% and 33%. MDCT technology represents a useful, noninvasive imaging method to assess and evaluate the location, depth, and length of this anatomical variation.
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Affiliation(s)
- R. De Rosa
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - M. Sacco
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - C. Tedeschi
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - R. Pepe
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - P. Capogrosso
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - E. Montemarano
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - A. Rotondo
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - G. Runza
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - M. Midiri
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
| | - F. Cademartiri
- UO di Radiologia, Ospedale San Gennaro, Napoli, Italy; UO di Cardiologia, Ospedale San Gennaro, Napoli, Italy
- Seconda Universita’ Degli Studi Di Napoli, Facolta’ Di Medicina E Chirurgia Dipartimento Universitatrio Di Internistica Clinica E Sperimentale “F. Magrassi – A. Lanzara”, Sezione Scientifica Di Diagnostica Per Immagini, Napoli, Italy; Dipartimento di Radiologia, DI.BI.ME.L, Università di Palermo, Palermo, Italy; Dipartimento di Radiologia e Cardiologia, Azienda Ospedaliero-Universitaria, Parma, Italy
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Grassi R, Lagalla R, Rotondo A. Genomics, proteomics, MEMS and SAIF: which role for diagnostic imaging? Radiol Med 2008; 113:775-8. [DOI: 10.1007/s11547-008-0309-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2006] [Accepted: 05/10/2006] [Indexed: 11/28/2022]
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Muto M, Ambrosanio G, Guarnieri G, Capobianco E, Piccolo G, Annunziata G, Rotondo A. Low back pain and sciatica: treatment with intradiscal-intraforaminal O2-O3 injection. Our experience. Radiol Med 2008; 113:695-706. [DOI: 10.1007/s11547-008-0302-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2007] [Accepted: 11/21/2007] [Indexed: 10/21/2022]
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Belfiore G, Tedeschi E, Ronza FM, Belfiore MP, Della Volpe T, Zeppetella G, Rotondo A. Radiofrequency ablation of bone metastases induces long-lasting palliation in patients with untreatable cancer. Singapore Med J 2008; 49:565-570. [PMID: 18695866] [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: 05/26/2023]
Abstract
INTRODUCTION In oncological patients, life quality can be greatly impaired by the presence of painful bone metastases, as standard forms of treatment often achieve inadequate palliation. The aim of our study was to evaluate the clinical efficacy of radiofrequency ablation (RFA) with respect to pain relief in patients with refractory bone metastases or who are ineligible to conventional treatments. METHODS 12 patients with 13 painful osteolytic skeletal metastases, and who were unresponsive to analgesic drug therapy, underwent one (seven lesions) or two (five lesions) RFA sessions under computed tomography (CT) guidance. The RFA procedure was completed in all patients without complications. One patient also received cementoplasty after the RFA procedure. To obtain semiquantitative pain scores, the brief pain inventory (BPI) was administered before treatment and during follow-up. The local effects of RFA were monitored for at least one year in eight of 12 patients with CT and/or magnetic resonance imaging. RESULTS Immediate pain relief after treatment was experienced by nine of 12 patients, but in two cases, pain recurred within the first week. Long-lasting palliation was obtained in seven of 12 patients. BPI mean scores for worst and average daily pain decreased from 7.7 and 5.0, respectively, at baseline, to 3.1 and 1.8, respectively, at one year. Imaging follow-up showed large areas of necrosis in nine of 12 lesions. CONCLUSION In our preliminary experience, RFA showed good and long-lasting efficacy for pain control in bone metastases. A possible role of RFA as a coadjuvant palliative treatment in these cases is suggested.
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Affiliation(s)
- G Belfiore
- Department of Diagnostic Imaging, S Anna-S Sebastiano Hospital, Via F Palasciano 81100, Caserta, Italy.
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Cappabianca S, Colella G, Pezzullo MG, Russo A, Iaselli F, Brunese L, Rotondo A. Lipomatous lesions of the head and neck region: imaging findings in comparison with histological type. Radiol Med 2008; 113:758-70. [DOI: 10.1007/s11547-008-0258-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2007] [Accepted: 07/16/2007] [Indexed: 11/30/2022]
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Bruno G, Nicolò F, Tresoldi G, Lanza S, Rotondo A. Ab initio and DFT calculation of molecular structure and proton affinity for selected chalcogenobispyridines. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.theochem.2007.05.012] [Citation(s) in RCA: 3] [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: 10/23/2022]
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Rubini G, Niccoli Asabella A, Stabile Ianora AA, Rubini D, Gaudiano A, Angelelli G, Rotondo A. Acute pulmonary embolism: comparison and integration of perfusion lung scintigraphy with multislice spiral CT. Radiol Med 2007; 112:174-84. [PMID: 17361378 DOI: 10.1007/s11547-007-0133-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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: 02/10/2006] [Accepted: 05/30/2006] [Indexed: 11/27/2022]
Abstract
PURPOSE This study compared and integrated the data from perfusion lung scintigraphy and multislice computed tomography (CT) for the emergency diagnosis of acute pulmonary embolism in nuclear medicine and radiology departments operating around the clock. MATERIALS AND METHODS One hundred and seven patients with a clinical and laboratory suspicion of acute pulmonary embolism who had already undergone chest radiography were divided into four groups according to the time interval between onset of clinical suspicion and performance of the two diagnostic examinations (0-24 h, 24-48 h, 0-48 h, 2-7 days). Cohen's test for the analysis of statistical concordance was used. RESULTS Perfusion lung scintigraphy and multislice CT were positive in 29/107 (27.1%) and negative in 78/107 (72.89%). Positive concordance (PC) was found in 22 cases and negative concordance (NC) in 71 cases: 0-24 h: PC in 12, NC in 32 cases; 24-48 h: PC in 3, NC in 15 cases; 0-48 h: PC in 15, NC in 47 cases; 2-7 days: PC in 7, NC in 24 cases. CONCLUSIONS Perfusion lung scintigraphy and multislice CT demonstrated elevated concordance if performed within 7 days of the onset of suspicion of acute pulmonary embolism. Concordance was higher if the examinations were completed within 24-48 h. In suspected acute pulmonary embolism, it is mandatory to reach a correct diagnosis within few hours--48 at the most.
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Affiliation(s)
- G Rubini
- Sezione di Diagnostica per Immagini, Policlinico Universitario, Piana Giulio Cesare 11, I-70124, Bari, Italy.
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Romano S, Lassandro F, Scaglione M, Romano L, Rotondo A, Grassi R. Ischemia and infarction of the small bowel and colon: spectrum of imaging findings. ACTA ACUST UNITED AC 2006; 31:277-92. [PMID: 16283583 DOI: 10.1007/s00261-005-0376-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- S Romano
- Department of Diagnostic Imaging, "A.Cardarelli" Hospital, Viale Cardarelli 9, Naples 80131, Italy.
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Abstract
In the past 20 years, emergency care concept has substantially changed on a cultural point of view, going well beyond the boundaries of medical science. It is now a general understanding that the real enemy of the critical patient is time; thus, functional organisation and collocation of human and technological resources in the emergency department (ED) can help avoid the loss of human lives. This "cultural revolution" led to the creation and development of structural and organisational models (layouts) of EDs. Now, emergency radiology has a central role in ED organisation, and the radiologist, providing 24-h coverage in the emergency room, is crucial for the correct diagnostic approach and rapid management of trauma. If this is the cultural background to the "emergency care" concept, an overview of such care in our country shows great differences from a structural, technological and organisational point of view. The presence of the radiologist providing 24-h coverage in the emergency room is still uncommon in many EDs The qualification of emergency care must be sought by studying the needs of the population and by seeking qualified personnel with high professional skill levels. All this must be understood and pursued by politicians and health care managers whose aim should be to coordinate and check the measures and human resources applied to the system. This process necessarily involves rewarding those health care professionals who prove to be up to the job.
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Affiliation(s)
- L Romano
- UOC di Radiologia Generale e Pronto Soccorso, AORN A Cardarelli, Napoli, Italy
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Scialpi M, Midiri M, Bartolotta TV, Cazzolla MP, Rotondo A, Resta MC, Lagalla R, Cardinale AE. Pancreatic carcinoma versus chronic focal pancreatitis: contrast-enhanced power Doppler ultrasonography findings. ACTA ACUST UNITED AC 2005; 30:222-7. [PMID: 15654578 DOI: 10.1007/s00261-004-0229-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 02/25/2004] [Accepted: 04/07/2004] [Indexed: 10/25/2022]
Abstract
BACKGROUND We assessed the potential usefulness of contrast-enhanced power Doppler ultrasonography (US) for differentiating pancreatic carcinoma from chronic focal pancreatitis. METHODS Twenty-six consecutive patients with ductal carcinoma (n=16) and chronic focal pancreatitis (n=10) underwent power Doppler US examinations before and after intravenous injection of an air-based contrast agent (Levovist, Schering, Berlin, Germany). Final diagnosis was obtained by surgery in all patients. The following parameters before and after intravenous administration of contrast agent were evaluated for each lesion: number, morphology and course of the vessels within the lesion and time to maximum detectable enhancement. Number of the lesion vessels and time to maximum enhancement for each lesion were compared by with Student t test. RESULTS After injection of contrast agent, nine of 16 (56.2%) carcinomas showed a larger total number of vessels (p<0.005) and faster enhancement (p<0.0001) compared with chronic focal pancreatitis. Irregular vessels with a serpiginous course that penetrated the tumor was predominant in carcinoma (eight of 16 cases), whereas focal pancreatitis presented mostly as avascular masses (five of 10 cases). CONCLUSION Contrast-enhanced power Doppler US provides useful findings for differentiating pancreatic carcinoma from chronic focal pancreatitis.
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Affiliation(s)
- M Scialpi
- Department of Radiology, Santissima Annunziata Hospital, Taranto, Italy
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Rotondo A, Romano S. Gastrointestinal and abdominal imaging after surgery. Eur J Radiol 2005. [DOI: 10.1016/j.ejrad.2004.12.007] [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: 11/24/2022]
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Memeo M, Stabile Ianora AA, Scardapane A, Suppressa P, Cirulli A, Sabbà C, Rotondo A, Angelelli G. Hereditary haemorrhagic telangiectasia: study of hepatic vascular alterations with multi-detector row helical CT and reconstruction programs. Radiol Med 2005; 109:125-38. [PMID: 15729193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
PURPOSE To evaluate hepatic alterations in patients affected by Hereditary Haemorrhagic Telangiectasia (HHT) by using multidetectorrow helical CT (MDCT) and new reconstruction programs. MATERIALS AND METHODS An MDCT multiphasic study of the liver was performed in 105 consecutive patients: 89 considered to be affected by HHT and 16 with suspicion of disease alone. The scan delay was determined by using a test bolus of contrast material. The CT examination was performed with a triphasic technique (double arterial phase and portal venous phase). Multiplanar and angiographic reconstructions were then obtained, and the images checked for the presence of shunts, hepatic perfusion disorders, vascular lesions (telangiectases and large confluent vascular masses), indirect signs of portal hypertension, and anatomical vascular variants. RESULTS Hepatic vascular alterations were found in 78/105 cases (67/89 patients affected by HHT and 11/16 patients with clinical suspicion alone). Therefore HHT diagnosis was excluded in 5 patients. 78/100 (78%) patients with HHT had intrahepatic vascular alterations: arterioportal shunts in 40/78 (51.2%), arteriosystemic shunts in 16/78 (20.5%), and both shunt types in 22/78 (28.3%). Intraparenchymal perfusion disorders were found in 46/78 (58.9%) patients. Telangiectases were recognised in 50/78 (64.1%) patients. Large confluent vascular masses (LCVMs) were identified in 20/78 (25.6%) patients. Indirect signs of portal hypertension were found in 46/78 (58.9%) cases. Variant hepatic arterial anatomy was present in 38/100 cases (38%). CONCLUSIONS Multiphasic MDCT and the new reconstruction programs enable the identification and characterisation of the complex vascular alterations typical of HHT.
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Affiliation(s)
- M Memeo
- DiMIMP, Sezione di Diagnostica per Immagini, Centro Interdipartimentale per lo Studio dell'HHT, Policlinico Universitario, Bari, Italy.
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Scialpi M, Scaglione M, Angelelli G, Lupattelli L, Resta MC, Resta M, Rotondo A. Emergencies in the retroperitoneum: assessment of spread of disease by helical CT. Eur J Radiol 2004; 50:74-83. [PMID: 15093238 DOI: 10.1016/j.ejrad.2003.11.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [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: 11/12/2003] [Revised: 11/19/2003] [Accepted: 11/27/2003] [Indexed: 12/13/2022]
Abstract
Acute pancreatitis, leaking abdominal aortic aneurysm, and renal trauma frequently occur in the setting of patients with abdominal nontraumatic and traumatic injury; it represents the most urgent conditions that may determine the presence of fluid collections or haematoma in the retroperitoneum. Single spiral CT and multidetector-row CT (MDCT) play an important role in diagnosis of retroperitoneal emergencies, providing useful informations on the type, site, extent and management of the fluid collections. An accurate CT assessment requires the awareness of the existence of dissectable retroperitoneal fascial planes. Fluid collections or haematoma tends to escape the retroperitoneal site of origin into planes extend from the diaphragm to the pelvic floor. We assess the multicompartimental anatomy of the retroperitoneum and the pathway of spread of the most frequent retroperitoneal fluid collections or haematoma by helical CT.
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Affiliation(s)
- M Scialpi
- Department of Radiology, "Santissima Annunziata" Hospital, Via Bruno 1, I-74100 Taranto, Italy.
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Stabile Ianora AA, Midiri M, Chiumarulo L, Scardapane A, Strada A, Angelelli G, Rotondo A. Helical CT: a useful technique in the evaluation of aortic intramural hematoma. Emerg Radiol 2001. [DOI: 10.1007/pl00011932] [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: 10/25/2022]
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Bruno G, Nicoló F, Rotondo A, Gitto R, Zappalá M. 4,5-Dihydro-7,8-dimethoxy-1-phenyl-3H-2,3-benzodiazepin-4-one. Acta Crystallogr C 2001; 57:1225-7. [PMID: 11600794 DOI: 10.1107/s0108270101011805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 06/12/2001] [Accepted: 07/12/2001] [Indexed: 11/11/2022] Open
Abstract
The title compound, C(17)H(16)N(2)O(3), is an antagonist for AMPA/kainate receptors. The molecule has its seven-membered oxadiazole ring in a boat conformation. Asymmetry of the two methoxy bond angles is evident, with (Me)O-C-C angles of 115.45 (12) and 124.78 (13) degrees, and 114.67 (12) and 125.31 (12) degrees. A centrosymmetric dimer involving the HN-CO moieties, with an N...O distance of 2.876 (2) A, graph set R(2)(2)(8), is further linked into chains through methoxy Csp(3)-H...N hydrogen bonds, with a C...N distance of 3.418 (2) A.
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Affiliation(s)
- G Bruno
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Universitá degli Studi di Messina, Via Salita Sperone 31, 98166 Vill. Sant'Agata, Messina, Italy.
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Bottari B, Maccari R, Monforte F, Ottanà R, Vigorita MG, Bruno G, Nicolò F, Rotondo A, Rotondo E. Nickel(II) 2,6-diacetylpyridine bis(isonicotinoylhydrazonate) and bis(benzoylhydrazonate) complexes: structure and antimycobacterial evaluation. Part XI. Bioorg Med Chem 2001; 9:2203-11. [PMID: 11504658 DOI: 10.1016/s0968-0896(01)00133-x] [Citation(s) in RCA: 39] [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: 11/22/2022]
Abstract
The reaction of 2,6-diacetylpyridine (dap) and isonicotinoyl- or benzoylhydrazide leads to bishydrazones H(2)dapin (1a) and H(2)dapb (1b), respectively. The condensation can either take place as a bimolecular kinetic process between the two reactants or as a monomolecular metal-templated synthesis in the presence of nickel(II) ions. In the latter case the reaction products are charged 2,6-diacetylpyridine bis(hydrazone) nickel(II) complexes, which can be easily deprotonated to neutral hydrazonates. Diffractometric analysis of one of these [Ni(dapb)](2) (8b) has shown a binuclear structure with two octahedral nickel(II) ions bridged by two helicoidal dap (bishydrazonates) in a spheroidal structure of C(2V) symmetry. The synthesized complexes 8 are promising as antimycobacterial agents against M. tuberculosis H37Rv. In particular, 8b displays significant activity (MIC=0.025 microg/mL) 10-fold higher than rifampin and equal to isoniazid, while its ligand is ineffective. Compound 8b is also capable of reducing HIV-induced cytopathogenic effect in human T(4 )lymphocytes.
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Affiliation(s)
- B Bottari
- Dipartimento Farmaco-chimico, Facoltà di Farmacia, Università di Messina, Italy
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Stabile Ianora AA, Wolowiec A, Francioso G, Scardapane A, Rotondo A, Angelelli G. [Benign and malignant gastric ulcer: CT findings]. Radiol Med 2001; 102:32-6. [PMID: 11677435] [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: 02/22/2023]
Abstract
PURPOSE To evaluate the differential CT aspects of benign and malignant gastric ulcers. MATERIALS AND METHODS We retrospectively reviewed the CT findings of 54 patients with gastric ulcerative lesions, 47 with malignant lesions (38 adenocarcinomas, 9 lymphomas) and 7 with benign lesions. All patients underwent histological examination. CT scanning was performed with a helical scanner Picker PQ 2000, before and after intravenous contrast material administration and after adequate stomach distension, achieved by drinking at least 400 ml of water; 2 ml/kg of intravenous contrast was injected at a rate of 3.5 ml/s. After contrast administration two-phase dynamic scans were performed with a scan delay of 30O and 50O. The parameters considered were: lesion size and localization, extension of the ulcer into or beyond the body of the stomach, focal wall thickness, contrast enhancement of the ulcer, perigastric tissue morphology, presence of lymphoadenopathies and liver metastases. RESULTS The ulcer size and localization were not significative in the differential diagnosis of benign or malignant ulcers. In 46 patients the ulcer extended within the body of the stomach (38 adenocarcinomas and 8 lymphomas), in 8 cases beyond (7 benign ulcers and 1 initial lymphoma). In 46 cases of malignant ulcers there were focal wall thickenings (> 5mm), in 1 case of initial lymphoma and in all cases of benign ulcers the thickness of the wall was normal. Contrast enhancement of the lesion was observed in 25 cases, all of which were adenocarcinomas. 33 patients had perigastric tissue abnormalites (32 with malignant lesions and 1 with benign ulcer). Lymphoadenopathies and liver metastases were detected in 30 cases and always associated to malignant ulcers. DISCUSSION AND CONCLUSIONS The improved CT technology allows to recognize gastric ulcer. Ulcer extension into stomach body; focal wall thickening; contrast enhancement of the lesion, lymphoadenopaties and liver metastases are significative in malignant gastric ulcers. The lack of these abnormalities is characteristic of benign gastric ulcers but can be also observed in early malignant lesions.
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Affiliation(s)
- A A Stabile Ianora
- Dipartimento di Medicina Interna e Medicina Pubblica, Sezione di Diagnostica per Immagini, Università degli Studi, Bari, Italy
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Abstract
We report a rare case of retroperitoneal angiosarcoma in a 72-year-old man who presented with abdominal pain. Diagnosis was obtained histologically after radical excision of the tumour. Fat-suppression MRI after intravenous administration of the contrast agent gadolinium-DTPA was able to define tissue planes between the lesion and the adjacent structures, suggesting the vascular nature of the lesion, and provided useful information for an accurate surgical approach. To the best of our knowledge, this is the first report that illustrates the MRI characteristics of a retroperitoneal angiosarcoma.
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Affiliation(s)
- M Scialpi
- Department of Radiology, Santissima Annunziata Hospital, Via Bruno, 74100 Taranto, Italy.
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Bruno G, Nicoló F, Rotondo A, Foti F, Risitano F, Grassi G, Bilardo C. 3-Phenyl-4H-furo[3,2-C]chromen-4-one. Acta Crystallogr C 2001; 57:493-4. [PMID: 11313606 DOI: 10.1107/s0108270101001433] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2000] [Accepted: 01/18/2001] [Indexed: 11/10/2022] Open
Abstract
The crystal structure of the title compound, C(17)H(10)O(3), is the first example of a furocoumarin containing three fused rings. The tricyclic furocoumarin fragment is perfectly planar. The phenyl substituent forms a dihedral angle of 39.52 (8) degrees with the plane of the tricyclic system. The crystal packing involves centrosymmetric dimers interconnected by strong pi-interactions between their furo[3,2-c]coumarin fragments [at distances of 3.42 (4) A].
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Affiliation(s)
- G Bruno
- Dipartimento di Chimica Inorganica, Chimica Analitica e Chimica Fisica, Universitá degli Studi di Messina, Via Salita Sperone 31, I-98166 Vill. S. Agata, Messina, Italy.
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Angelelli G, Ianora AA, Scardapane A, Pedote P, Memeo M, Rotondo A. Role of computerized tomography in the staging of gastrointestinal neoplasms. Semin Surg Oncol 2001; 20:109-21. [PMID: 11398204 DOI: 10.1002/ssu.1024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gastrointestinal neoplasms are very common diseases, and the first challenge for clinicians is to define the extent of the tumor in order to plan the best treatment. The role of computerized tomography in assessing this kind of patient is well established worldwide. This article reviews the capabilities and the limits of this imaging technique in the staging of the tumors of the digestive tract (liver, gallbladder, biliary tract, pancreas, esophagus, stomach, small bowel, and colon).
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Affiliation(s)
- G Angelelli
- Department of Radiology, University Hospital of Bari, Bari, Italy.
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Pinto A, Scaglione M, Pinto F, Romano L, Grassi R, Rotondo A. Helical computed tomography diagnosis of gastrointestinal perforation in the elderly patient. Emerg Radiol 2000. [DOI: 10.1007/pl00011837] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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