1
|
Litif CG, Flom LT, Sandum KL, Hodgins SL, Vaccaro L, Stitzel JA, Blouin NA, Mannino MC, Gigley JP, Schoborg TA, Bobadilla AC. Differential genetic expression within reward-specific ensembles in mice. bioRxiv 2024:2023.11.02.565378. [PMID: 37961222 PMCID: PMC10635086 DOI: 10.1101/2023.11.02.565378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Maladaptive reward seeking is a hallmark of cocaine use disorder. To develop therapeutic targets, it is critical to understand the neurobiological changes specific to cocaine-seeking without altering the seeking of natural rewards, e.g., sucrose. The prefrontal cortex (PFC) and the nucleus accumbens core (NAcore) are known regions associated with cocaine- and sucrose-seeking ensembles, i.e., a sparse population of co-activated neurons. Within ensembles, transcriptomic alterations in the PFC and NAcore underlie the learning and persistence of cocaine- and sucrose-seeking behavior. However, transcriptomes exclusively driving cocaine seeking independent from sucrose seeking have not yet been defined using a within-subject approach. Using Ai14:cFos-TRAP2 transgenic mice in a dual cocaine and sucrose self-administration model, we fluorescently sorted (FACS) and characterized (RNAseq) the transcriptomes defining cocaine- and sucrose-seeking ensembles. We found reward- and region-specific transcriptomic changes that will help develop clinically relevant genetic approaches to decrease cocaine-seeking behavior without altering non-drug reward-based positive reinforcement.
Collapse
Affiliation(s)
- Carl G. Litif
- School of Pharmacy, University of Wyoming, Laramie, Wyoming, USA
| | - Levi T. Flom
- School of Pharmacy, University of Wyoming, Laramie, Wyoming, USA
| | | | | | - Lucio Vaccaro
- School of Pharmacy, University of Wyoming, Laramie, Wyoming, USA
| | - Jerry A. Stitzel
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado, USA
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, Colorado, USA
| | - Nicolas A. Blouin
- Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA
| | | | - Jason P. Gigley
- Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA
| | - Todd A. Schoborg
- Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA
| | - Ana-Clara Bobadilla
- School of Pharmacy, University of Wyoming, Laramie, Wyoming, USA
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| |
Collapse
|
2
|
Bobadilla AC, Dereschewitz E, Vaccaro L, Heinsbroek JA, Scofield MD, Kalivas PW. Cocaine and sucrose rewards recruit different seeking ensembles in the nucleus accumbens core. Mol Psychiatry 2020; 25:3150-3163. [PMID: 32985600 PMCID: PMC8532193 DOI: 10.1038/s41380-020-00888-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 09/07/2020] [Accepted: 09/14/2020] [Indexed: 11/09/2022]
Abstract
Poorly regulated reward seeking is a central feature of substance use disorder. Recent research shows that rewarding drug-related experiences induce synchronous activation of a discrete number of neurons in the nucleus accumbens that are causally linked to reward-related contexts. Here we comprehensively characterize the specific ensemble of neurons built through experience that are linked to seeking behavior. We additionally address the question of whether or not addictive drugs usurp the neuronal networks recruited by natural rewards by evaluating cocaine- and sucrose-associated ensembles within the same mouse. We used FosCreERT2/+/Ai14 transgenic mice to tag cells activated by and potentially encoding cocaine and sucrose seeking. We tagged ~1% of neurons in the core subregion of the accumbens (NAcore) activated during cue-induced seeking for cocaine or sucrose. The majority of tagged cells in the seeking ensembles were D1-MSNs, and specifically activated during seeking, not during extinction or when mice remained in the home cage. To compare different reward-specific ensembles within the same mouse, we used a dual cocaine and sucrose self-administration protocol allowing reward-specific seeking. Using this model, we found ~70% distinction between the cells constituting the cocaine- compared to the sucrose-seeking ensemble. Establishing that cocaine recruits an ensemble of NAcore neurons largely distinct from neurons recruited into an ensemble coding for sucrose seeking suggest a finely tuned specificity of ensembles. The findings allow further exploration of the mechanisms that transform reward-based positive reinforcement into maladaptive drug seeking.
Collapse
Affiliation(s)
- Ana-Clara Bobadilla
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA.
- School of Pharmacy, University of Wyoming, Laramie, WY, USA.
| | - Eric Dereschewitz
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
| | - Lucio Vaccaro
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
| | - Jasper A Heinsbroek
- Department of Anesthesiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Michael D Scofield
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA
- Department of Anesthesia and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Peter W Kalivas
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, USA.
| |
Collapse
|
3
|
Spallino L, Vaccaro L, Cannas M, Gelardi FM. Luminescence from nearly isolated surface defects in silica nanoparticles. J Phys Condens Matter 2015; 27:365301. [PMID: 26302715 DOI: 10.1088/0953-8984/27/36/365301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A structured emission/excitation pattern, proper of isolated defects, arises in a vacuum from silica nanoparticles. The luminescence, centered around 3.0-3.5 eV, is characterised by a vibronic progression due to the phonon coupling with two localised modes of frequency ∼1370 cm(-1) and ∼360 cm(-1), and decays in about 300 ns at 10 K. On increasing the temperature, the intensity and the lifetime decrease due to the activation of a non-radiative rate from the excited state. Concurrently, the temperature dependence of the lineshape evidences the low coupling with non-localised modes of the matrix (Huang-Rhys factor S ~ 0.2) and the poor influence of the inhomogeneous broadening. These findings outline an uncommon behaviour in the field of the optical properties of defects in amorphous solids, evidencing that the silica surface can allocate luminescent defects almost disentangled from the basal network.
Collapse
Affiliation(s)
- L Spallino
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, I-90123 Palermo, Italy
| | | | | | | |
Collapse
|
4
|
Goldstein D, Bell ML, Butow P, Sze M, Vaccaro L, Dong S, Liauw W, Hui R, Tattersall M, Ng W, Asghari R, Steer C, Vardy J, Parente P, Harris M, Karanth NV, King M, Girgis A, Eisenbruch M, Jefford M. Immigrants' perceptions of the quality of their cancer care: an Australian comparative study, identifying potentially modifiable factors. Ann Oncol 2014; 25:1643-9. [PMID: 24827124 DOI: 10.1093/annonc/mdu182] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Recent data show a falling cancer mortality in the general population without a similar shift in immigrant outcomes, leading to a greater cancer burden and mortality for immigrants. Our aims were to compare perceived patterns of care in immigrants and native-born cancer patients. PATIENTS AND METHODS This was a hospital-based sample of first-generation immigrants and Australian-born Anglo patients in the first year following diagnosis. It was restricted to Chinese, Arabic, or Greek speakers. Eligible participants, recruited via 16 oncology clinics, were over 18, with cancer (any type or stage), and having commenced treatment at least 1 month previously. Five hundred and seventy-one CALD patients (comprising 145 Arabic, 248 Chinese, and 178 Greek) and a control group of 274 Anglo-Australian patients participated. RESULTS Immigrants had difficulty communicating with the doctor (73% versus 29%) and understanding the health system (38% versus 10%). Differences were found in 'difficulty knowing who to see' (P = 0.0002), 'length of time to confirm diagnosis' (P = 0.04), wanting more choice about a specialist and hospital (P < 0.0001); being offered the opportunity to see a counselor (P < 0.0001); and actually seeing one (P < 0.0001). There were no significant self-reported differences regarding how cancer was detected, time to see a health professional, or type first seen; however, immigrants reported difficulty knowing who to see. Previous studies showed differences in patterns of care according to socioeconomic status (SES) and educational level. Despite adjusting for age, sex, education, marital status, SES, time since diagnosis, and type of cancer, we did not find significant differences. Instead, we found that understanding of the health system and confidence understanding English were important factors. CONCLUSIONS This study confirmed that immigrants with cancer perceive an inferior quality of cancer care. We highlight potentially modifiable factors including assistance in navigating the health system, translated information, and cultural competency training for health professionals.
Collapse
Affiliation(s)
- D Goldstein
- Department of Medical Oncology, Prince of Wales Hospital, Sydney
| | - M L Bell
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney
| | - P Butow
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney Centre of Medical Psychology and Evidence-based Decision-making (CeMPED), University of Sydney, Sydney
| | - M Sze
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney
| | - L Vaccaro
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney
| | - S Dong
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney
| | - W Liauw
- Cancer Care Centre, St George Hospital, Sydney
| | - R Hui
- Department of Medical Oncology, Westmead Hospital and Blacktown Oncology Unit, Blacktown Hospital Sydney, Sydney
| | - M Tattersall
- Department of Cancer Medicine, University of Sydney, Sydney Department of Medical Oncology, Royal Prince Alfred Hospital, Sydney
| | - W Ng
- Department of Medical Oncology, Liverpool Hospital, Sydney
| | - R Asghari
- Bankstown Cancer Care Centre, Bankstown Lidcombe Hospital, Sydney
| | - C Steer
- Border Medical Oncology, Wodonga
| | - J Vardy
- Centre of Medical Psychology and Evidence-based Decision-making (CeMPED), University of Sydney, Sydney
| | - P Parente
- Department of Clinical Haematology and Medical Oncology, Box Hill Hospital, Victoria
| | - M Harris
- Department of Medical Oncology, Monash Medical Centre, Victoria
| | - N V Karanth
- Department of Medical Oncology, Royal Darwin Hospital, Northern Territory
| | - M King
- Psycho-Oncology Co-operative Research Group (PoCoG), University of Sydney, Sydney
| | - A Girgis
- Translational Cancer Research Unit, Ingham Institute for Applied Medical Research, and University of NSW, Sydney
| | - M Eisenbruch
- School of Psych, Psychiatry and Psych Medicine, Monash University, Victoria
| | - M Jefford
- Sir Peter MacCallum Department of Oncology and Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria Division of Medicine, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia
| |
Collapse
|
5
|
|
6
|
|
7
|
Vaccaro L, Cannas M. The structural disorder of a silica network probed by site selective luminescence of the nonbridging oxygen hole centre. J Phys Condens Matter 2010; 22:235801. [PMID: 21393769 DOI: 10.1088/0953-8984/22/23/235801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We studied the inhomogeneous distribution of the luminescence band associated with the nonbridging oxygen hole centre in silica through site selective excitation/detection of the zero phonon line by a tunable laser source. Defects induced in the bulk of synthetic samples by γ and β exposure exhibit an increase of the inhomogeneous width from 0.071 to 0.086 eV on increasing the irradiation dose from 2 × 10(6) to 5 × 10(9) Gy. We also investigated two defect variants stabilized at the surface of the silica nanoparticles, (≡ Si-O)3 Si–O* and (≡ Si-O)2(H-O)Si-O*, whose inhomogeneous width was measured to be 0.042 eV and 0.060 eV, respectively. These results can be accounted for by the structural disorder around the defect, and specific causes of its variation can be pointed out, such as the network modification induced by irradiation or the structural alteration near the SiO(4) coordination sphere.
Collapse
Affiliation(s)
- L Vaccaro
- Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, Via Archirafi 36, I-90123 Palermo, Italy.
| | | |
Collapse
|
8
|
|
9
|
Tortora P, Descrovi E, Aeschimann L, Vaccaro L, Herzig HP, Dändliker R. Selective coupling of HE11 and TM01 modes into microfabricated fully metal-coated quartz probes. Ultramicroscopy 2006; 107:158-65. [PMID: 16942840 DOI: 10.1016/j.ultramic.2006.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2006] [Accepted: 07/05/2006] [Indexed: 10/24/2022]
Abstract
We report computational and experimental investigations on injection and transmission of light in microfabricated fully Aluminum-coated quartz probes. In particular, we show that a selective coupling of either the HE(11) or the TM(01) mode can be carried out by injecting focused linearly or radially polarized beams into the probe. Optical fields, emitted by the probe after a controlled injection, are characterized in intensity and phase with the help of an interferometric technique. With the help of near-field measurement, we finally demonstrate that a longitudinally polarized spot localized at the tip apex is actually produced when the TM(01) mode is coupled into the probe.
Collapse
Affiliation(s)
- P Tortora
- Institute of Microtechnology, University of Neuchâtel, Rue A.L. Breguet 2, CH-2000 Neuchâtel, Switzerland.
| | | | | | | | | | | |
Collapse
|
10
|
Tortora P, Abashin M, Märki I, Nakagawa W, Vaccaro L, Salt M, Herzig HP, Levy U, Fainman Y. Observation of amplitude and phase in ridge and photonic crystal waveguides operating at 1.55 microm by use of heterodyne scanning near-field optical microscopy. Opt Lett 2005; 30:2885-7. [PMID: 16279458 DOI: 10.1364/ol.30.002885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We apply heterodyne scanning near-field optical microscopy (SNOM) to observe with subwavelength resolution the amplitude and phase of optical fields propagating in several microfabricated waveguide devices operating around the 1.55 microm wavelength. Good agreement between the SNOM measurements and predicted optical mode propagation characteristics in standard ridge waveguides demonstrates the validity of the method. In situ observation of the subwavelength-scale distribution and propagation of optical fields in straight and 90 degrees bend photonic crystal waveguides facilitates a more detailed understanding of the optical performance characteristics of these devices and illustrates the usefulness of the technique for investigating nanostructured photonic devices.
Collapse
Affiliation(s)
- P Tortora
- Institute of Microtechnology, University of Neuchâtel, Rue A.-L. Breguet 2, 2000 Neuchâtel, Switzerland.
| | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Pacheco JR, Vaccaro L, Mejias H, Perez A, Lopez J, Dorta D. Relation between Holstein bulls' proofs for milk in USA and the survival and body weights up to 18 months of their F1 zebu progeny in Venezuela. J Anim Breed Genet 2003. [DOI: 10.1046/j.1439-0388.2003.00389.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Vaccaro L, Lopez J, Vaccaro R, Verde O, Mejias H, Dorta D, Perez A. Relation between Holstein bulls' proofs for milk in USA and the milk yield, age at first calving, calving interval and survival to third calving of their F1 zebu progeny in Venezuela. J Anim Breed Genet 2003. [DOI: 10.1046/j.1439-0388.2003.00388.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
13
|
|
14
|
Amantini D, Fringuelli F, Pizzo F, Vaccaro L. Efficient O-trimethylsilylation of alcohols and phenols with trimethylsilyl azide catalyzed by tetrabutylammonium bromide under neat conditions. J Org Chem 2001; 66:6734-7. [PMID: 11578228 DOI: 10.1021/jo015814s] [Citation(s) in RCA: 56] [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] [Indexed: 11/29/2022]
Abstract
A very efficient procedure for the trimethylsilylation of a wide variety of alcohols, including primary, allylic, benzylic, secondary, hindered secondary, tertiary, and phenols is reported. The reactions were carried out under neat conditions with trimethylsilyl azide (TMSN(3)) and, when necessary, in the presence of a catalytic amount (20 mol %) of tetrabutylammonium bromide (TBABr) at 30 or 70 degrees C. Under catalytic conditions, the yields of the corresponding trimethylsilyl ethers were greater than 91%. This procedure also allows the selective protection of primary and secondary alcohols in the presence of tertiary ones.
Collapse
Affiliation(s)
- D Amantini
- Dipartimento di Chimica, Università di Perugia Via Elce di Sotto 8, I-06123 Perugia, Italy
| | | | | | | |
Collapse
|
15
|
Fringuelli F, Pizzo F, Vaccaro L. Lewis-acid catalyzed organic reactions in water. The case of AlCl(3), TiCl(4), and SnCl(4) believed to be unusable in aqueous medium. J Org Chem 2001; 66:4719-22. [PMID: 11421799 DOI: 10.1021/jo010373y] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Classical Lewis acids such as AlCl(3), TiCl(4), and SnCl(4), believed to be unusable as catalysts in aqueous medium, efficiently catalyzed regio- and stereoselective azidolysis and iodolysis of alpha,beta-epoxycarboxylic acids in water at pH 4.0 and 1.5, respectively. The concept of water-tolerant metal-salt is reexamined in direct relationship to the aqua ion hydrolysis constant.
Collapse
Affiliation(s)
- F Fringuelli
- Dipartimento di Chimica, Università di Perugia, I-06123 Perugia, Italy.
| | | | | |
Collapse
|
16
|
Amantini D, Fringuelli F, Pizzo F, Vaccaro L. Bromolysis and iodolysis of alpha,beta-epoxycarboxylic acids in water catalyzed by indium halides. J Org Chem 2001; 66:4463-7. [PMID: 11421763 DOI: 10.1021/jo0156215] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ring opening of alpha,beta-epoxycarboxylic acids by bromide and iodide ions has been efficiently carried out in water in high regio- and stereoselective fashion. The iodolysis of trans-beta-monoalkylated epoxycarboxylic acids at pH 4.0 was completely alpha-regioselective and anti diastereoselective. The InCl(3)-catalyzed iodolysis of a variety of alpha,beta-epoxycarboxylic acids at pH 1.5 gave the corresponding anti beta-iodohydrins in 88-95% yields. The one-pot synthesis of the alpha- and beta-hydroxyhexanoic acids, starting from the corresponding alpha,beta-epoxycarboxylic acid 1a by iodolysis followed by reduction of the resulting iodohydrins 4a and 4b by NaBH(4)-InCl(3) in water, has been performed.
Collapse
Affiliation(s)
- D Amantini
- Dipartimento di Chimica, Università di Perugia Via Elce di Sotto 8, I-06123 Perugia, Italy
| | | | | | | |
Collapse
|
17
|
Abstract
Shear force mapping on thiolipid Langmuir-Blodgett monolayers probed with Al-coated tips leads to a contrast highly dependent on the monolayer molecular organization, which does not correspond to the topographical relief of the sample. The use of functionalized surface probes offers the possibility to better control the probe-to-sample interaction. In addition, hydrophilic surface probes are totally insensitive to alkyl chain arrangements in the monolayer. Hydrophobic probes, instead, can be chosen to map shear force on soft samples in liquid environment, since their mechanical properties are not influenced by the surrounding liquid.
Collapse
Affiliation(s)
- L Vaccaro
- Institut d'Optique Appliquée, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
| | | | | | | |
Collapse
|
18
|
Fringuelli F, Pizzo F, Vaccaro L. Azidolysis of α,β-Epoxycarboxylic Acids. A Water-Promoted Process Efficiently Catalyzed by Indium Trichloride at pH 4.0. J Org Chem 2001; 66:3554-8. [PMID: 11348144 DOI: 10.1021/jo015564f] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The catalytic efficiency of InCl(3), Yb(OTf)(3), and Sc(OTf)(3) in the azidolysis of alpha,beta-epoxycarboxylic acids has been studied in water and in organic solvents, for comparison using NaN(3) and Me(3)SiN(3) as the source of the azido group. In water, the catalytic effectiveness of these metal salts strongly depends on the pH of the aqueous medium and on the type of Lewis acid catalyst. In water their catalytic activity is mostly due to the corresponding aqua ion species, the concentration of which becomes significant when the pH of the aqueous medium is below the corresponding pK(1,1) hydrolysis constant. The process is more efficient in water than in organic solvents. At pH 4.0, InCl(3) is a far better catalyst than Yb(OTf)(3) or Sc(OTf)(3) and allows the highly regio- and diasteroselective preparation of beta-azido-alpha-hydroxycarboxylic acids, which can be isolated in pure form in very high yields.
Collapse
Affiliation(s)
- F Fringuelli
- Dipartimento di Chimica, Università di Perugia Via Elce di Sotto 8, I-06123 Perugia, Italy
| | | | | |
Collapse
|
19
|
Tan E, Schweitzer ME, Vaccaro L, Spetell AC. Is computed tomography of nonvisualized C7-T1 cost-effective? J Spinal Disord 1999; 12:472-6. [PMID: 10598987] [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: 02/14/2023]
Abstract
The authors determined the cost-effectiveness of computed tomography (CT) of the inadequately visualized C7-T1 level on conventional radiography in a retrospective cohort study. Routine cervical spine radiography was performed in 360 trauma patients in whom the C7-T1 level was not adequately visualized, but there was no evidence of lower cervical spine injury. In these patients, CT of C7-T1 was performed and reviewed for the presence, location, and pattern of fracture. An orthopaedic surgeon was consulted regarding his proposed treatment and the presumed natural history without treatment of each C7-T1 injury identified. Based on Medicare reimbursement data, cost-effectiveness was then calculated for 1) each fracture identified, 2) each fracture that required surgical fixation secondary to risk of further neurologic sequelae (definitely unstable), and 3) each fracture that required either surgical fixation or halo immobilization secondary to the risk of development of cervical instability and arthritis (potentially or definitely unstable). Eleven of 360 fractures of C7-T1 were identified. The cost-effectiveness of CT for averting potential sequelae was $9,192 for each fracture identified, $16,852 identified for each potentially or definitely unstable fracture identified, and $50,557 for each definitely unstable fracture identified. Computed tomography of the inadequately visualized C7-T1 level on plain radiography is cost-effective, especially given the relatively young age of the trauma population and therefore the high associated morbidity of the sequelae of these injuries over time.
Collapse
Affiliation(s)
- E Tan
- Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
| | | | | | | |
Collapse
|
20
|
Fustinoni O, Abiusi G, Mut A, Vaccaro L, Bartolomé E, Rocchi V, Balcarce P. 1-07-38 Effect of idebenone on the outcome of completed stroke. J Neurol Sci 1997. [DOI: 10.1016/s0022-510x(97)84892-7] [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]
|
21
|
Abiusi G, Mut A, Vaccaro L, Balcarce P, Vila J. 1-27-08 Lissencephaly: Infrequent dissociation between structural images and function. J Neurol Sci 1997. [DOI: 10.1016/s0022-510x(97)85017-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
22
|
Bisetti A, Ciappi G, Bariffi F, Catena E, Rocco V, Vaccaro L, Grassi V, Scarpazza G, Bertoli L, Cardani A. Evaluation of the efficacy of pidotimod in the exacerbations in patients affected with chronic bronchitis. Arzneimittelforschung 1994; 44:1499-502. [PMID: 7857351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The efficacy and safety of pidotimod ((R)-3-[(S)-(5-oxo-2-pyrrolidinyl)carbonyl]-thiazolidine-4-carboxylic acid, PGT/1A, CAS 121808-62-6), a new oral synthetic immunostimulating agent, were investigated in a multicentre study, performed in 10 university and hospital centres of pneumophthisiology and respiratory physiopathology, according to a double-blind vs. placebo experimental design. Primary objective of the investigation was to verify the efficacy of pidotimod against infectious exacerbations in patients affected with chronic bronchitis. 181 inpatients or outpatients (117 male, 64 female; mean age: 62.5 years), affected with chronic bronchitis, were enrolled in the study. Pidotimod 800 mg/die or placebo sachets were administered by oral route for 60 consecutive days, followed by a 60-day follow-up period. Clinical observations were performed at baseline (D 0), after 30 (D 30) and 60 (D 60) days of treatment, as well as at the end of the follow-up (D 120). Time and frequency of infectious relapses were considered as the target variable for the evaluation of the efficacy of the drug. Clinical picture, expectoration characteristics, spirometric parameters and laboratory tests were monitored to evaluate patients' conditions. The results indicate that pidotimod is significantly more effective than placebo against infectious relapses in patients suffering from chronic bronchitis. During the first month, 9% of patients treated with pidotimod were affected with an infectious relapse vs. 39.5% of patients treated with placebo (chi 2, p < 0.001). In the second month, infectious episodes were reported by 1.2% of patients treated with the drug vs. 46.1% of patients treated with placebo (chi 2, p < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- A Bisetti
- 1st Institute of Phthisio-Pneumology, La Sapienza University, Carlo Forlanini Hospital, Rome, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Nosadini R, Fioretto P, Carraro A, Brocco E, Sambataro M, Cipollina MR, Trevisan M, Abaterusso C, Vaccaro L, Mollo F. Effects of cilazapril on Na+ retention and ANP resistance in IDDM hypertensives. Am J Med 1993; 94:66S-69S. [PMID: 8488864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- R Nosadini
- Istituto di Medicina Interna, Policlinico Universitario, Padova, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Vaccaro L, De Giorgi AM, Gallo O, Vaccaro M, Compare V. [Various unusual morpho-pathologic cases of extrapulmonary tuberculosis]. Arch Monaldi Mal Torace 1991; 46:11-21. [PMID: 1845416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- L Vaccaro
- III Divisione Pneumotisiologica, USL 41, Ospedale V. Monaldi, Napoli
| | | | | | | | | |
Collapse
|
25
|
Vaccaro L, Chianca MC, Bocchino M. [Clinical case report. Thoracic pathology with unusual hemoptoic symptoms]. Arch Monaldi 1977; 31:161-4. [PMID: 869661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
26
|
Aliperta A, Bellissimo U, Bocchino M, Vaccaro L. [Biopsy technics and their results in pulmonary cancerology]. Bronchopneumologie 1977; 27:1,2-9. [PMID: 880492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
27
|
Galanti B, Picciotto L, Ruggiero G, Romano E, Vaccaro L. [Homologous and heterologous antibody response induced in man by anti-influenza vaccine containing A/England/42/72 and b/Massachusetts/71]. Boll Ist Sieroter Milan 1976; 55:13-7. [PMID: 1021152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In november 1973, 43 subjects living in a home for aged were given one dose of influenza vaccine, containing A/England/42/72 and B/Massachusetts/71. After 4 and 20 weeks, sera were tested for antibody contentto the homologous and to A/port Chalmers/1/73 viruses by haemoagglutination inhibition technique. Control group included 23 untreated subjects. The satisfactory increase in the anti-A/England/42/72 antibodies induced by vaccine indicated a good antigenic potency of the A component. The satisfactory cross-reacting response suggests that the "drift" in antigenic content between A England/42/72 and A/Port Chalmers/1/73 was moderate. On the contrary the increase in anti-B/Massachusetts/71 antibodies after vaccination was observed only in a limited number of cases. Twelve subjects (9 treated and 3 controls) experienced upper respiratory tract infections which appeared to be not related to infuenza viruses.
Collapse
|
28
|
Vaccaro L, Caruso A. [Value of needle biopsy in pleural and pulmonary pathology]. Arch Monaldi 1974; 29:198-218. [PMID: 4463907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
29
|
Micillo E, Vaccaro L, Mazzei A. [Operability and survival among patients undergoing exeresis for primary cancer of the lung in the Phthisiologic Clinic of the University of Naples]. Arch Tisiol Mal Appar Respir 1969; 24:961-70. [PMID: 5312741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
30
|
Del Bono M, Vivenzio L, Vaccaro L, Lorenzoni E. [The destroyed lung. Bronchological aspects]. Arch Tisiol Mal Appar Respir 1968; 23:66-72. [PMID: 5309760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
31
|
Biscione C, Lorenzoni E, Vaccaro L. [Survey of the epidemiologic status of a community exposed to intrafamilial tubercular infection]. Rass Int Clin Ter 1967; 47:351-66. [PMID: 5605937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
32
|
Massei V, Vaccaro L, Di Filippo A, Natali P. [Primary lung cancer in women. (Synthetic review of the literature and clinico-statistical data]. Arch Tisiol Mal Appar Respir 1967; 22:60-84. [PMID: 5303873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
33
|
Vaccaro L, Di Filippo A, Biscione C. [Endotheorcic fibromas. (Review and clinical contribution)]. Rass Int Clin Ter 1966; 46:1281-99. [PMID: 5997867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
34
|
Vaccaro L, Di Filippo A, Massei V, Natali P. [The current status of phrenicoparalysis in therapy of pulmonary tuberculosis. (Clinico-statistical findings)]. Arch Tisiol Mal Appar Respir 1966; 21:1033-54. [PMID: 5301585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
35
|
Vaccaro L, Biscione C. [On a case of pulmonary staphylococcal infection secondary to osteomyelitis, treated with Rifampicine]. Arch Tisiol Mal Appar Respir 1966; 21:911-22. [PMID: 5301817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
36
|
Di Fillippo A, Vaccaro L, Lorenzoni E. [Bronchographic findings after phrenico-exeresis for pulmonary tuberculosis]. Arch Tisiol Mal Appar Respir 1966; 21:740-55. [PMID: 5300151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
37
|
Carratù L, Sonaglioni F, Vaccaro L, Sisti F. [Neoplastic metastases to the lung. Symptoms and syndromes of onset. Collateral phenomena]. Arch Tisiol Mal Appar Respir 1966; 21:652-71. [PMID: 5300401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
38
|
Grande F, Vaccaro L. [Toxic lesions of the 1st and 8th pairs of cranial nerves in the course of antitubercular chemoantiobiotic therapy. (Collective review)]. Arch Tisiol Mal Appar Respir 1966; 21:Suppl:109-28. [PMID: 5333551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
39
|
Massei V, Vaccaro L, Di Filippo A, Natali P. [Primary cancer of the lung to women. (Review of literature and clinico-statistical findings)]. Riv Anat Patol Oncol 1966; 29:530-55. [PMID: 5989637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
40
|
Vaccaro L, Fogliani V. [Tubercular processes with a primary indication for exeresis]. Arch Tisiol Mal Appar Respir 1966; 21:293-306. [PMID: 5296829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
41
|
Vaccaro L, Sisti F, Di Filippo A. [The present position of extrapleural pneumothorax. (Clinico-statistical findings)]. Arch Tisiol Mal Appar Respir 1966; 21:219-32. [PMID: 5296076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
42
|
Vaccaro L. L’impiego della rifamicina SV rende più rapidi e più sicuri i risultati dell’aspirazione endocavitaria. Chemotherapy 1963. [DOI: 10.1159/000220191] [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: 11/19/2022]
|