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Catapano R, Sepe L, Toscano E, Paolella G, Chiurazzi F, Barbato SP, Bruzzese D, Arianna R, Grosso M, Romano S, Romano MF, Costanzo P, Cesaro E. Biological relevance of ZNF224 expression in chronic lymphocytic leukemia and its implication IN NF-kB pathway regulation. Front Mol Biosci 2022; 9:1010984. [PMID: 36425656 PMCID: PMC9681601 DOI: 10.3389/fmolb.2022.1010984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 08/03/2022] [Accepted: 10/20/2022] [Indexed: 12/21/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is a heterogeneous disease, whose presentation and clinical course are highly variable. Identification of novel prognostic factors may contribute to improving the CLL classification and providing indications for treatment options. The zinc finger protein ZNF224 plays a key role in cell transformation, through the control of apoptotic and survival pathways. In this study, we evaluated the potential application of ZNF224 as a novel marker of CLL progression and therapy responsiveness. To this aim, we analyzed ZNF224 expression levels in B lymphocytes from CLL patients at different stages of the disease and in patients showing different treatment outcomes. The expression of ZNF224 was significantly increased in disease progression and dramatically decreased in patients in complete remission after chemotherapy. Gene expression correlation analysis performed on datasets of CLL patients revealed that ZNF224 expression was well correlated with that of some prognostic and predictive markers. Moreover, bioinformatic analysis coupled ZNF224 to NF-κB pathway, and experimental data demonstrated that RNA interference of ZNF224 reduced the activity of the NF-κB survival pathway in CLL cells. Consistently with a pro-survival role, ZNF224 knockdown raised spontaneous and drug-induced apoptosis and inhibited the proliferation of peripheral blood mononuclear cells from CLL patients. Our findings provide evidence for the involvement of ZNF224 in the survival of CLL cells via NF-κB pathway modulation, and also suggest ZNF224 as a prognostic and predictive molecular marker of CLL disease.
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Affiliation(s)
- Rosa Catapano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Leandra Sepe
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- Ceinge Advanced Technologies, Naples, Italy
| | - Elvira Toscano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- Ceinge Advanced Technologies, Naples, Italy
| | - Giovanni Paolella
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- Ceinge Advanced Technologies, Naples, Italy
| | - Federico Chiurazzi
- Division of Hematology, Department of Clinical and Experimental Medicine, University of Naples Federico II, Naples, Italy
| | - Serafina Patrizia Barbato
- Division of Hematology, Department of Clinical and Experimental Medicine, University of Naples Federico II, Naples, Italy
| | - Dario Bruzzese
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Rosa Arianna
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Michela Grosso
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
- Ceinge Advanced Technologies, Naples, Italy
| | - Simona Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Maria Fiammetta Romano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Paola Costanzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Elena Cesaro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
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Toscano E, Sepe L, del Giudice G, Tufano R, Paolella G. A three component model for superdiffusive motion effectively describes migration of eukaryotic cells moving freely or under a directional stimulus. PLoS One 2022; 17:e0272259. [PMID: 35917375 PMCID: PMC9345344 DOI: 10.1371/journal.pone.0272259] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 07/15/2022] [Indexed: 11/25/2022] Open
Abstract
Although the simple diffusion model can effectively describe the movement of eukaryotic cells on a culture surface observed at relatively low sampling frequency, at higher sampling rates more complex models are often necessary to better fit the experimental data. Currently available models can describe motion paths by involving additional parameters, such as linearity or directional persistence in time. However sometimes difficulties arise as it is not easy to effectively evaluate persistence in presence of a directional bias. Here we present a procedure which helps solve this problem, based on a model which describes displacement as the vectorial sum of three components: diffusion, persistence and directional bias. The described model has been tested by analysing the migratory behaviour of simulated cell populations and used to analyse a collection of experimental datasets, obtained by observing cell cultures in time lapse microscopy. Overall, the method produces a good description of migration behaviour as it appears to capture the expected increase in the directional bias in presence of wound without a large concomitant increase in the persistence module, allowing it to remain as a physically meaningful quantity in the presence of a directional stimulus.
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Affiliation(s)
- Elvira Toscano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli studi di Napoli “Federico II”, Napoli, Italy
- Ceinge Biotecnologie Avanzate, Napoli, Italy
| | - Leandra Sepe
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli studi di Napoli “Federico II”, Napoli, Italy
- Ceinge Biotecnologie Avanzate, Napoli, Italy
| | - Giusy del Giudice
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli studi di Napoli “Federico II”, Napoli, Italy
| | | | - Giovanni Paolella
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli studi di Napoli “Federico II”, Napoli, Italy
- Ceinge Biotecnologie Avanzate, Napoli, Italy
- * E-mail:
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Toscano E, Altizio S, Cianfanelli L, Denti P, Stella S, Capogrosso C, De Bonis M, Buzzatti N, Godino C, Latib A, Montorfano M, Camici PG, Castiglioni A, Alfieri O, Agricola E. P43673D analysis of mitral annular reshape with third generation MitraClip XTr in functional and degenerative mitral regurgitation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
The 3rd generation Mitraclip XTr was recently introduced to improve device performance, through longer clip arms that should allow better grasping of the mitral leaflets, thus improving coaptation and results eventually. Several studies have demonstrated additional effects such as the reshape of the mitral annulus immediately after clip implantation.
The aim of our study was to evaluate the mitral valve (MV) annular remodelling with MitraClip XTr.
Between March 2018 and November 2018, 75 consecutive patients were enrolled. The population was divided in two groups: functional mitral regurgitation (FMR) and degenerative mitral regurgitation (DMR).
The 3D MV datasets at baseline and immediately after the procedure were acquired and then analysed with semiautomatic MVQ software (QLAB Cardiac 3DQ v.10.0; Philips Medical Systems).
The software provides the following parameters: annular diameters (antero-posterior, AP, and inter-commissural, IC), circumference, area, height and ellipsicity (IC/AP ratio as percentage); saddle-index, defined as annular height to IC diameter ratio was derived.
The 3D post-processing was feasible in 54 patients (108 3D datasets): 28 had FMR (52%) and 26 had DMR (48%).
An average of 1.8 clips per patient were implanted: 2 clips in 38 (70%), 1 clip in 14 (26%) and 3 clips in 2 (4%) patients. The position was central in 93% of the procedures.
Results are reported in table 1. In the FMR group, a reduction in the AP diameter (p=0.001), an increase in both IC diameter (p=0.001) and annular ellipsicity (p<0.001) were observed.
In the DMR group, an increase in annular ellipsicity (p=0,008) and in saddle-index (p<0.05) were observed.
Table 1 Functional mitral regurgitation (N=28) Degenerative mitral regurgitation (N=26) Pre-clip Post-clip P-value Pre-clip Post-clip P-value IC diameter (mm) 39.3±4.2 41.9±4.1 0.001 40.9±6.5 41.8±5.8 0.257 AP diameter (mm) 32.8±4.6 30.4±3.2 0.001 32.6±4.8 31.7±4.5 0.199 Annular Height (mm) 5.1±1.8 5.4±1.8 0.336 4.8±1.9 5.7±2.2 0.026 3D circumference (mm) 122.7±15.1 123.5±11 0.718 123.5±19.0 124.0±17.1 0.812 3D area (mmq) 1128.0±280 1113.7±206 0.752 1160±346.7 1156.8±318.0 0.926 Annular ellipsicity (%) 121.5±12.2 138.5±11.8 0.0005 125.9±9.6 132.4±10.7 0.008 Saddle index 13.0±4 13.0±4 0.957 11.8±4.2 13.6±4.2 0.048
Our study demonstrates that the XTr implantation produces a MV annular remodelling both in FMR and DMR probably with different mechanisms. In FMR the MV annulus resulted more elliptical, wheras in DMR the geometrical modifications involve both the ellipsicity and the saddle-shape morphology.
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Affiliation(s)
- E Toscano
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - S Altizio
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - L Cianfanelli
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - P Denti
- San Raffaele Hospital of Milan (IRCCS), Cardiac Surgery Department, Milan, Italy
| | - S Stella
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - C Capogrosso
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - M De Bonis
- San Raffaele Hospital of Milan (IRCCS), Cardiac Surgery Department, Milan, Italy
| | - N Buzzatti
- San Raffaele Hospital of Milan (IRCCS), Cardiac Surgery Department, Milan, Italy
| | - C Godino
- San Raffaele Hospital of Milan (IRCCS), Interventional Cardiology Department, Milan, Italy
| | - A Latib
- San Raffaele Hospital of Milan (IRCCS), Interventional Cardiology Department, Milan, Italy
| | - M Montorfano
- San Raffaele Hospital of Milan (IRCCS), Interventional Cardiology Department, Milan, Italy
| | - P G Camici
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
| | - A Castiglioni
- San Raffaele Hospital of Milan (IRCCS), Cardiac Surgery Department, Milan, Italy
| | - O Alfieri
- San Raffaele Hospital of Milan (IRCCS), Cardiac Surgery Department, Milan, Italy
| | - E Agricola
- San Raffaele Hospital of Milan (IRCCS), Echocardiography Laboratory, Milan, Italy
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Schiattarela G, Sannino A, Toscano E, Giugliano G, Gargiulo G, Franzone A, Avvedimento M, Trimarco B, Esposito G, Perrino C. P1482Gut microbe-generated metabolite trimethylamine-N-oxide and cardiovascular risk: a systematic review and meta-analysis of mortality outcome. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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5
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Vázquez R, Poletto DJ, Moreno MT, Climent A, Toscano E. Ileoileal and ileocecal intussusception due to ileal lipoma: A rare cause of bowel obstruction in the adult. Rev Gastroenterol Mex (Engl Ed) 2017; 83:457-459. [PMID: 28684032 DOI: 10.1016/j.rgmx.2017.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/26/2017] [Accepted: 03/14/2017] [Indexed: 10/19/2022]
Affiliation(s)
- R Vázquez
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Povisa, Vigo, Pontevedra, España.
| | - D J Poletto
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Povisa, Vigo, Pontevedra, España
| | - M T Moreno
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Povisa, Vigo, Pontevedra, España
| | - A Climent
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Povisa, Vigo, Pontevedra, España
| | - E Toscano
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Povisa, Vigo, Pontevedra, España
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D'Urso G, Patti S, Toscano E, de Bartolomeis A, Mantovani A. Polarity-dependent effects of transcranial direct current stimulation in obsessive-compulsive disorder. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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7
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Jones AC, Toscano E, Botting N, Marshall CR, Atkinson JR, Denmark T, Herman R, Morgan G. Narrative skills in deaf children who use spoken English: Dissociations between macro and microstructural devices. Res Dev Disabil 2016; 59:268-282. [PMID: 27664562 DOI: 10.1016/j.ridd.2016.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 07/19/2016] [Accepted: 09/13/2016] [Indexed: 06/06/2023]
Abstract
Previous research has highlighted that deaf children acquiring spoken English have difficulties in narrative development relative to their hearing peers both in terms of macro-structure and with micro-structural devices. The majority of previous research focused on narrative tasks designed for hearing children that depend on good receptive language skills. The current study compared narratives of 6 to 11-year-old deaf children who use spoken English (N=59) with matched for age and non-verbal intelligence hearing peers. To examine the role of general language abilities, single word vocabulary was also assessed. Narratives were elicited by the retelling of a story presented non-verbally in video format. Results showed that deaf and hearing children had equivalent macro-structure skills, but the deaf group showed poorer performance on micro-structural components. Furthermore, the deaf group gave less detailed responses to inferencing probe questions indicating poorer understanding of the story's underlying message. For deaf children, micro-level devices most strongly correlated with the vocabulary measure. These findings suggest that deaf children, despite spoken language delays, are able to convey the main elements of content and structure in narrative but have greater difficulty in using grammatical devices more dependent on finer linguistic and pragmatic skills.
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Affiliation(s)
- -A C Jones
- Deafness, Cognition and Language Research Centre, University College London, UK.
| | | | | | - C-R Marshall
- Institute of Education, University College London, UK
| | - J R Atkinson
- Deafness, Cognition and Language Research Centre, University College London, UK
| | - T Denmark
- Deafness, Cognition and Language Research Centre, University College London, UK
| | | | - G Morgan
- Deafness, Cognition and Language Research Centre, University College London, UK; City University, London UK
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8
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Consorti F, Potasso L, Toscano E. [The concept of medical professionalism of medical students: basic assessment for a cohort study]. Clin Ter 2012; 163:e377-e386. [PMID: 23306749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIMS Education for professionalism is an international challenge. This paper reports the results of the assessment performed on two cohorts of first year students of Medicine, relating to attitudes toward three basic components of the construct of professionalism such as sensitivity to sociocultural differences, empathetic behaviors and professional skills in relationship to self, colleagues, patients and society. These components are analyzed with respect to their importance in the process of healthcare. MATERIALS AND METHODS The assessment of the three components was performed through the validated Italian versions of three instruments: the Socio-Cultural Attitudes in Medicine Inventory, the Jefferson Scale of Empathy and the Nijmegen Professionalism Scale, administered for two consecutive years to all the students of the C curriculum in Medicine of Sapienza University of Rome (Italy). RESULTS On a total of 196 students, the responses showed no significant differences related to gender or type of high school for the three examined components. A trend is present toward a familiar influence when one of the parents is a doctor and an idea of professionalism more technical-oriented than addressed to communication and empathy. CONCLUSIONS The follow up study of these cohorts of students will provide important information for further educational design.
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Affiliation(s)
- F Consorti
- Dipartimento di Scienze Chirurgiche, Facoltà di Medicina ed Odontoiatria. Università Sapienza di Roma, Italia.
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Liuccio M, Amorese V, Miconi A, Romano V, Toscano E. ["New" virus and "old" risks. Reflections on H1N1 pandemic in the newspapers in Italy, France and UK]. Clin Ter 2012; 163:e339-e348. [PMID: 23099985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
AIMS Social scientist Ulrick Beck links the idea of "risk society" with images of chronic uncertainties. The aim of this paper is to study how health risks are communicated in this social context. MATERIALS AND METHODS In order to do that we explored a selection of articles published by two of the most popular newspapers in Italy, Corriere della Sera e La Repubblica, the UK, The Times e The Guardian, and France, Le Monde e Le Figaro, during 2009. RESULTS. This study allowed us to identify a transnational interest towards H1N1 pandemic that is characterized by picks of attention followed by periods of general indifference, and an alarmist frame. In alternative to this cross-country representation of H1N1 pandemic, however, we also identified three specific frames, one per each country. According to our analysis these frames can only be understood in close relation to citizens' trust towards the policy of science and the institutions, as well as the local and cultural traditions of science communication. CONCLUSIONS Having said that, we are convinced that there is no perfect receipt that transcends the local context can be implemented to communicate health risks such as the ones associated H1N1. Nevertheless, our data indicate that there are good examples of health risks communication actually happening in Europe balancing between the risks of generating alarmism and denying the uncertainties of science become that are by now more and more evident.
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Affiliation(s)
- M Liuccio
- Dipartimenti di Comunicazione e Ricerca Sociale, Università Sapienza Roma, CNR IRPPS, Roma, Italia.
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Fernández A, Vila JJ, Vázquez S, González-Portela C, de la Iglesia M, Lozano M, Toscano E. Self-expanding plastic stents for the treatment of post-operative esophago-jejuno anastomosis leak. A case series study. Rev Esp Enferm Dig 2011; 102:704-10. [PMID: 21198312 DOI: 10.4321/s1130-01082010001200005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Self-expandable plastic stents (SEPS) are increasingly being used for treatment of postoperative esophageal leak. This complication occurs in 4-27% of patients after radical gastrectomy, and has a high mortality rate up to 60%.The aim of this study is to evaluate the efficacy of SEPS (Polyflex®) for treatment of post-operative esophago-jejuno anastomosis leak after radical gastrectomy for gastric cancer. MATERIAL AND METHODS During one year period patients who underwent a radical gastrectomy in our hospital for gastric cancer and developed a postoperative anastomotic leak were prospectively included in the study after signing a consent form, and treated with SEPS placement under endoscopic and fluoroscopic control for leak occlusion. RESULTS Four patients were included (3 men/1 woman). The mean interval between operation and SEPS placement was 16 days (range: 4-34). SEPS deployment was easily performed in all patients with complete occlusion of esophageal lumen in three patients. In the fourth patient we needed to deploy a second coaxial stent to achieve a complete occlusion of the fistula. SEPS migration did not happen in our series. One patient had already developed a mediastinitis by the time we placed the SEPS and he died 3 days later. Extraction of the SEPS was easily performed 4-8 weeks after deployment. CONCLUSION We achieved a complete healing of the anastomotic fistula after radical gastrectomy in 3 out of 4 patients, without major complications related to SEPS. Placement of SEPS is an appealing minimally invasive alternative to surgical repair for patients with postoperative anastomotic leak.
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Affiliation(s)
- A Fernández
- Gastroenterology Department, POVISA Hospital, C/Salamanca 5, Vigo, Pontevedra, Spain.
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11
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Pham PCT, Dewar K, Hashmi S, Toscano E, Pham PMT, Pham PAT, Pham PTT. Pain prevalence in patients with chronic kidney disease. Clin Nephrol 2010; 73:294-299. [PMID: 20353737] [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: 05/29/2023] Open
Abstract
BACKGROUND The prevalence of pain in patients with chronic kidney diseases (CKD) is not known. In the current study, we aim to determine the prevalence of pain in CKD patients and its associations with various medical and psychosocial factors. METHODS Consecutive CKD patients who were presented to the renal clinic at Olive View-UCLA Medical Center, a Los Angeles County tertiary referral center, over a 3-month period were interviewed on their medical and psychosocial histories and a history of pain including duration, severity and source. Chi2-testing for independence and binary logistic regression performed for the presence of pain and CKD stages as well as other medical and psychosocial factors were determined. A separate survey for pain was also done for 100 consecutive non-CKD patients who were presented to our ambulatory medicine clinic for routine care. RESULTS 54.6% of 130 patients with known CKD interviewed were women. Any type of pain of at least a 2 week duration was reported in 72.9%. The most common source of pain was musculoskeletal. The presence of pain of less than a 2 week duration was associated with worse CKD stages (3 - 5 versus 1 - 2) and non-exercisers. Higher body mass index was associated with having pain lasting longer than a 2 week duration. Among patients who had pain, 33.8% used acetaminophen, 15.4% nonsteroidal anti-inflammatory drugs and 7.8% combination analgesics. In contrast to CKD patients, only 9% of non-CKD patients reported to have any type or duration of pain. CONCLUSIONS Pain was much more prevalent among our CKD compared with non-CKD patients.
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Affiliation(s)
- P C T Pham
- Olive View-UCLA Medical Center, Department of Medicine, Nephrology Division, Sylmar, CA 91342, USA.
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12
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Barros LC, Ferreira RS, Barraviera SRCS, Stolf HO, Thomazini-Santos IA, Mendes-Giannini MJS, Toscano E, Barraviera B. A new fibrin sealant from Crotalus durissus terrificus venom: applications in medicine. J Toxicol Environ Health B Crit Rev 2009; 12:553-571. [PMID: 20183534 DOI: 10.1080/10937400903442514] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Fibrin sealant, a widely available tissue adhesive, has been used since 1940 in a variety of clinical applications. Commercially available fibrin sealant products are synthesized from bovine thrombin and human fibrinogen, which may transmit infectious diseases, and recipients may also develop antibodies against bovine thrombin. Bearing these disadvantages in mind, a new fibrin sealant was developed in 1989 by a group of researchers from the Center for the Study of Venoms and Venomous Animals, in Sao Paulo State, Brazil. The main purpose was to produce an adhesive fibrin without using human blood, to avoid transmitting infectious diseases. The components of this novel sealant were extracted from large animals and a serine proteinase extracted from Crotalus durissus terrificus snake venom. The applicability of this sealant was tested in animals and humans with beneficial results. The new fibrin sealant can be a useful tool clinically due to its flexibility and diversity of applications. This sealant is a biological and biodegradable product that (1) does not produce adverse reactions, (1) contains no human blood, (3) has a good adhesive capacity, (4) gives no transmission of infectious diseases, and (5) may be used as an adjuvant in conventional suture procedures. The effectiveness of this new fibrin sealant is reviewed and its development and employment are described.
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Affiliation(s)
- L C Barros
- Centro de Estudos de Venenos e Animais Peçonhentos, Universidade Estadual Paulista, UNESP, Botucatu, São Paulo State, Brasil
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Melo AC, Lima DS, Small IA, Olmedo DB, Toscano E, de Biasi P, Martins R, Ferreira CG, Zukin M. A phase II trial of adjuvant UFT after sequential chemotherapy and radiotherapy in patients with stage IIIB non-small cell lung cancer and non-oriental ethnicity. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.18175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
18175 Background: The goals of chemoradiotherapy in non-small cell lung cancer (NSCLC) with stage III disease are to achieve local control, for which radiotherapy plays the main role, and eradicate occult distant metastases by chemotherapy. Systemic progression remains a significant cause of morbidity and mortality in these patients. Japanese trials showed that the combination of uracil and tegafur (UFT) improves survival in patients with early NSCLC. The Brazilian National Cancer Institute (INCA) conducted a phase II trial to evaluate the use of adjuvant UFT in patients with IIIB NSCLC treated with sequential chemoradiation. Methods: The eligibility requirements were stage IIIB NSCLC, an ECOG performance status 0 or 1 and normal end organ function. Patients were treated with induction chemotherapy with cisplatin (100 mg/m2 - days 1 and 29) and vinblastine (5 mg/m2/week for 5 weeks) followed by 60 Gy of thoracic radiotherapy. Two weeks after the end of radiotherapy they started a fixed UFT oral dose (400 mg/day), administered continuously for one year if no progression was detected in this interval. Results: Between May 1999 and October 2003, 22 patients were enrolled; 15 were male (68.2%); 65% were white (no patients had oriental ethnicity); 11 were adenocarcinoma (50%), 9 squamous cell (40.9%); the median age was 55.5 years (range: 45–74 years). UFT’s toxicity was manageable with 13.6% of grades 3 and 4 toxicities (mainly fatigue, diarrhea, nausea and vomiting). Two patients discontinue UFT due to limiting toxicity (1 patient due to diarrhea and 1 due to nausea and fatigue). Median time on UFT was 5 months (range: 0.5–12 months). Median follow-up was 13.5 months (range: 6–77 months) and five patients are still alive. The median overall survival (OS) was 14 months (95% CI: 10.6–17.3) and the median progression-free survival was 8 months (95% CI: 3.4–12.5). Conclusions: UFT in this fixed dose schedule was well tolerated, but our results are almost identical to the Dillman′s original report with sequential chemotherapy and radiotherapy in stage IIIB NSCLC (13.7 months OS). Despite our limited sample size these data may suggest that adjuvant UFT do not add any benefit to sequential chemoradiation in this non-oriental population. No significant financial relationships to disclose.
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Affiliation(s)
- A. C. Melo
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - D. S. Lima
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - I. A. Small
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - D. B. Olmedo
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - E. Toscano
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - P. de Biasi
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - R. Martins
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - C. G. Ferreira
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
| | - M. Zukin
- Brazilian National Cancer Institute, Rio de Janeiro, Brazil; University of Washington, Seattle, WA
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Goldberg YP, MacFarlane J, MacDonald ML, Thompson J, Dube MP, Mattice M, Fraser R, Young C, Hossain S, Pape T, Payne B, Radomski C, Donaldson G, Ives E, Cox J, Younghusband HB, Green R, Duff A, Boltshauser E, Grinspan GA, Dimon JH, Sibley BG, Andria G, Toscano E, Kerdraon J, Bowsher D, Pimstone SN, Samuels ME, Sherrington R, Hayden MR. Loss-of-function mutations in the Nav1.7 gene underlie congenital indifference to pain in multiple human populations. Clin Genet 2007; 71:311-9. [PMID: 17470132 DOI: 10.1111/j.1399-0004.2007.00790.x] [Citation(s) in RCA: 342] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Congenital indifference to pain (CIP) is a rare condition in which patients have severely impaired pain perception, but are otherwise essentially normal. We identified and collected DNA from individuals from nine families of seven different nationalities in which the affected individuals meet the diagnostic criteria for CIP. Using homozygosity mapping and haplotype sharing methods, we narrowed the CIP locus to chromosome 2q24-q31, a region known to contain a cluster of voltage-gated sodium channel genes. From these prioritized candidate sodium channels, we identified 10 mutations in the SCN9A gene encoding the sodium channel protein Nav1.7. The mutations completely co-segregated with the disease phenotype, and nine of these SCN9A mutations resulted in truncation and loss-of-function of the Nav1.7 channel. These genetic data further support the evidence that Nav1.7 plays an essential role in mediating pain in humans, and that SCN9A mutations identified in multiple different populations underlie CIP.
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Affiliation(s)
- Y P Goldberg
- Xenon Pharmaceuticals Inc., 3650 Gilmore Way, Burnaby, BC V5G4W8, Canada.
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15
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Amaral C, Small I, Olmedo DB, Sousa A, Toscano E, Sousa P, Pelluso H, Ferreira CG, Sales A, Zukin M. Induction chemoradiotherapy and surgical resection for non-small cell lung carcinomas of the superior sulcus (pancoast tumors): Mature results of National Cancer Institute (INCa)-Brazil. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.17124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
17124 Background: The established treatment for T3 Pancoast tumors, radiation plus surgery, leads to a 50% R0 resection rate and a 30% 5 year survivals. T4 tumors are usually unresectable and incurable. Our group retrospectively analyzed the feasibility and efficacy of induction chemoradiotherapy plus surgery for T3 and T4 tumors. Methods: Eligible patients (pts) had biopsy proven, untreated, T3–4N0–1 Pancoast tumors. Induction therapy was cisplatin (50 mg/m2, days 1,8,29,36) and etoposide (50 mg/m2, days 1–5, 29–33) (PE) given concurrently with radiation (45 Gy, 25 daily fractions). Thoracotomy was done within 5 weeks of induction therapy for stable or responding disease. All pts were to receive postoperative chemotherapy (PE ×2). Median follow up was 19 months. Results: From 4/01–6/05, 13 eligible pts were enrolled: 6 men, 7 women, median age 53 years; 9 T3, 4 T4. All pts (100%) completed induction therapy. Grade 3–4 toxicities were neutropenia (n = 2), anemia (n = 1), fatigue (n = 1), esophagitis (n = 5). All pts had thoracotomy, 13 had R0 resection. Pathologic CR was found in 3 (23.1%), minimal microscopic disease in 1 (7.7%). Postoperative chemotherapy completed by only 1/13 pts. Median survival was not reached and Median Disease free (DFS) and 2 year overall survivals (OS) were 26 months (CI 95% 13.6–38.4) 67% for all pts, respectively. Relapse sites were brain only (n = 3) and local only (n = 1). Conclusion: This combined modality therapy was well tolerated and leads to high rates of complete resection, OS and local control that are strikingly better than with radiation and surgery. These results obtained in a population with T3 and T4 tumors reproduced those of the SWOG study in terms of resectability, safety and short-term survival Of note is the poor adherence to postoperative chemotherapy in this population. No significant financial relationships to disclose.
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Affiliation(s)
- C. Amaral
- National Cancer Institute, Rio De Janeiro, Brazil
| | - I. Small
- National Cancer Institute, Rio De Janeiro, Brazil
| | - D. B. Olmedo
- National Cancer Institute, Rio De Janeiro, Brazil
| | - A. Sousa
- National Cancer Institute, Rio De Janeiro, Brazil
| | - E. Toscano
- National Cancer Institute, Rio De Janeiro, Brazil
| | - P. Sousa
- National Cancer Institute, Rio De Janeiro, Brazil
| | - H. Pelluso
- National Cancer Institute, Rio De Janeiro, Brazil
| | | | - A. Sales
- National Cancer Institute, Rio De Janeiro, Brazil
| | - M. Zukin
- National Cancer Institute, Rio De Janeiro, Brazil
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16
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de Biasi Cordeiro P, Sousa A, de Biasi Cordeiro S, Toscano E, Roriz W, Torquato E, Zamboni M, Lannes D, Cantarino C, Monteiro A. P-865 Mortality and incidence of bronchial fistula after pneumonectomy in a cancer hospital. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)81358-3] [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: 11/28/2022]
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17
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Martins R, De Biase P, Toscano E, Madeira D, Pereira C, Cavalcante A, Pinel I, Roriz W, Zukin M. UFT after sequential chemo and radiotherapy in patients with stage IIIB non-small cell lung cancer (NSCLC). J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.7294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- R. Martins
- National Cancer Institute, Rio de Janeiro, Brazil
| | - P. De Biase
- National Cancer Institute, Rio de Janeiro, Brazil
| | - E. Toscano
- National Cancer Institute, Rio de Janeiro, Brazil
| | - D. Madeira
- National Cancer Institute, Rio de Janeiro, Brazil
| | - C. Pereira
- National Cancer Institute, Rio de Janeiro, Brazil
| | | | - I. Pinel
- National Cancer Institute, Rio de Janeiro, Brazil
| | - W. Roriz
- National Cancer Institute, Rio de Janeiro, Brazil
| | - M. Zukin
- National Cancer Institute, Rio de Janeiro, Brazil
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18
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Pisacane A, Toscano E, Pirri I, Continisio P, Andria G, Zoli B, Strisciuglio P, Concolino D, Piccione M, Lo Giudice C, Vicari S. Down syndrome and breastfeeding. Acta Paediatr 2004; 92:1479-81. [PMID: 14971802 DOI: 10.1080/08035250310007024] [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] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
AIM The aim of the study was to investigate the frequency of breastfeeding among children with Down syndrome. METHODS The mothers of 560 children with Down syndrome attending four university hospitals in Italy were interviewed and the neonatal clinical records retrieved. Information was collected on the type of infant feeding and on why some mothers had not breastfed their children. Two groups of healthy children whose feeding habits had been previously investigated were recruited as control subjects (1601 and 714, respectively). A paediatrician in each hospital was interviewed about the neonatal admission policy of children with Down syndrome. RESULTS Among the 560 Down children, 246 (44%) were admitted to the neonatal unit. Compared with the two control groups, children with Down syndrome were significantly more frequently bottle-fed (57% vs 15% and 24%, respectively, odds ratio 7.5, 95% CI 6.0-9.4 and 4.2, 95% CI 3.3-5.4. respectively). Only 30% of infants admitted to the neonatal unit were breastfed. The main reasons reported by the mothers for not having breastfed were infants' illness in infants who had been admitted to the neonatal unit and frustration or depression, perceived milk insufficiency and difficulty with suckling for those babies who had not been admitted to the unit. The paediatricians reported that the admission of a baby with Down syndrome to the neonatal unit could sometimes take place not for medical reasons, but for diagnostic work-up or for a more appropriate diagnosis and to maintain communication with the family. CONCLUSIONS Down syndrome babies are less frequently breastfed compared with healthy children. Support in breastfeeding should become a relevant point of health supervision for children with Down syndrome.
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Affiliation(s)
- A Pisacane
- Dipartimento di Pediatria, Università di Napoli Federico II, Naples, Italy.
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19
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Toscano E. Historical views on celiac disease: the contribution of Adolf Baginsky (1843-1918). Acta Paediatr 2004; 93:417-8. [PMID: 15124851 DOI: 10.1080/08035250310023674] [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: 04/29/2023]
Affiliation(s)
- E Toscano
- Department of Pediatrics, Federico II University of Naples, Naples, Italy.
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20
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Toscano E, Pacileo G, Limongelli G, Verrengia M, Di Mita O, Di Maio S, Salerno M, Del Giudice E, Caniello B, Calabrò R, Andria G. Subclinical hypothyroidism and Down's syndrome; studies on myocardial structure and function. Arch Dis Child 2003; 88:1005-8. [PMID: 14612370 PMCID: PMC1719338 DOI: 10.1136/adc.88.11.1005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The management of subclinical hypothyroidism (SH) is still controversial, as the benefit to risk ratio of prolonged L-thyroxine therapy is not clear cut. Some authors have shown abnormalities of myocardial function and structure in adults with SH, which could be reversed by L-thyroxine therapy. As SH frequently affects children with Down's syndrome (DS), and almost one half of these are affected by congenital heart disease, a concomitant SH related impairment of cardiac function might further compromise their clinical condition. AIMS To establish whether SH influences myocardial structure and function in children with DS. METHODS Sixteen children with DS and untreated SH and 25 matched euthyroid controls with DS underwent echocardiographic analysis of left ventricular mechanics and tissue characterisation. RESULTS None of the 16 patients had myocardial impairment. CONCLUSION Results suggest that children with DS who have SH are not at risk of cardiac disease. Clinicians should consider these data in the management of SH, as the benefit to risk ratio of prolonged L-thyroxine therapy is not clear cut.
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Affiliation(s)
- E Toscano
- Department of Paediatrics, Federico II University of Naples, Italy
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21
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Indo Y, Mardy S, Miura Y, Moosa A, Ismail EA, Toscano E, Andria G, Pavone V, Brown DL, Brooks A, Endo F, Matsuda I. Congenital insensitivity to pain with anhidrosis (CIPA): novel mutations of the TRKA (NTRK1) gene, a putative uniparental disomy, and a linkage of the mutant TRKA and PKLR genes in a family with CIPA and pyruvate kinase deficiency. Hum Mutat 2001; 18:308-18. [PMID: 11668614 DOI: 10.1002/humu.1192] [Citation(s) in RCA: 53] [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] [Indexed: 11/10/2022]
Abstract
Congenital insensitivity to pain with anhidrosis is an autosomal recessive hereditary disorder characterized by recurrent episodic fever, anhidrosis (inability to sweat), absence of reaction to noxious stimuli, self-mutilating behavior, and mental retardation. The human TRKA gene (NTRK1), located on chromosome 1q21-q22 encodes the receptor tyrosine kinase for nerve growth factor. We reported that TRKA is the gene responsible for CIPA and we developed a comprehensive strategy to screen for TRKA mutations and polymorphisms, as based on the gene's structure and organization. Here we report eight novel mutations detected as either a homozygous or heterozygous state in nine CIPA families from five countries. Mendelian inheritance of the mutations was confirmed in seven families for which samples from either parent were available. However, non-mendelian inheritance seems likely for the family when only samples from the mother and siblings, (but not from the father) were available. A paternal uniparental disomy for chromosome 1 is likely to be the cause of reduction to homozygosity of the TRKA gene mutation in this family. Interestingly, a Hispanic patient from the USA has two autosomal genetic disorders, CIPA and pyruvate kinase deficiency, whose genetic loci are both mapped to a closely linked chromosomal region. A splice mutation and a missense mutation were detected in the TRKA and PKLR genes from the homozygous proband, respectively. Thus, concomitant occurrence of two disorders is ascribed to a combination of two separate mutant genes, not a contiguous gene syndrome. This finding suggests a mechanism responsible for two autosomal genetic disorders in one patient. All these data further support findings that TRKA defects can cause CIPA in various ethnic groups. This will aid in diagnosis and genetic counseling of this painless but severe genetic disorder.
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Affiliation(s)
- Y Indo
- Department of Pediatrics, Kumamoto University School of Medicine, Kumamoto, Japan.
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22
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Cheng LS, Davis RC, Raffel LJ, Xiang AH, Wang N, Quiñones M, Wen PZ, Toscano E, Diaz J, Pressman S, Henderson PC, Azen SP, Hsueh WA, Buchanan TA, Rotter JI. Coincident linkage of fasting plasma insulin and blood pressure to chromosome 7q in hypertensive hispanic families. Circulation 2001; 104:1255-60. [PMID: 11551876 DOI: 10.1161/hc3601.096729] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [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] [Indexed: 01/10/2023]
Abstract
BACKGROUND Insulin resistance (IR) and hyperinsulinemia are phenotypically associated with hypertension. We have previously provided evidence that blood pressure (BP) and IR cosegregate in Hispanic families, suggesting that this association has a genetic component. In the present study, we provide further support for the hypothesis of a genetic basis for the BP-IR relationship from a genetic linkage study. METHODS AND RESULTS A 10-cM genome scan was conducted in 390 Hispanic family members of 77 hypertensive probands. Detailed measurements of BP, glucose, insulin levels, and insulin sensitivity (euglycemic clamp) were performed in adult offspring of probands. Multipoint variance component linkage analysis was used. A region on chromosome 7q seemed to influence both IR and BP. The greatest evidence for linkage was found for fasting insulin (lod score=3.36 at 128 cM), followed by systolic BP (lod score=2.06 at 120 cM). Fine mapping with greater marker density in this region increased the maximum lod score for fasting insulin to 3.94 at 125 cM (P=0.00002); lod score for systolic BP was 2.51 at 112 cM. Coincident mapping at this locus also included insulin sensitivity measured by the homeostasis assessment model (HOMA) and serum leptin concentrations. Insulin sensitivity by euglycemic clamp did not map to the same locus. CONCLUSIONS Our results demonstrate that a major gene determining fasting insulin is located on chromosome 7q. Linkage of BP, HOMA, and leptin levels to the same region suggests this locus may broadly influence traits associated with IR and supports a genetic basis for phenotypic associations in IR syndrome.
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Affiliation(s)
- L S Cheng
- Division of Medical Genetics, Steven Spielberg Pediatric Research Center, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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23
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Abstract
Cholelithiasis is considered uncommon in infancy, childhood, and adolescence. We performed a prospective, controlled study showing that children with Down's syndrome have a significantly higher prevalence of cholelithiasis (4.7%) compared with controls (0.2%). Clinicians should be aware of the risk of gallstones in children with Down's syndrome.
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Affiliation(s)
- E Toscano
- Department of Paediatrics, "Federico II" University, Via S. Pansini 5, I-80131 Naples, Italy
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24
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25
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Xiang AH, Azen SP, Raffel LJ, Tan S, Cheng LS, Diaz J, Toscano E, Henderson PC, Hodis HN, Hsueh WA, Rotter JI, Buchanan TA. Evidence for joint genetic control of insulin sensitivity and systolic blood pressure in hispanic families with a hypertensive proband. Circulation 2001; 103:78-83. [PMID: 11136689 DOI: 10.1161/01.cir.103.1.78] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [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] [Indexed: 11/16/2022]
Abstract
BACKGROUND The clustering of hypertension, insulin resistance, and obesity remains unexplained. We tested for genetic and nongenetic influences on the association among these traits in Hispanic families with hypertension. METHODS AND RESULTS Blood pressure and body mass index (BMI) were measured in 331 members of 73 Hispanic families in which an index case (proband) had hypertension. Insulin sensitivity (S(I)) was measured by euglycemic clamp in 287 probands and their spouses (parents' generation) or their adult offspring. Correlation analysis examined relationships among traits within and between generations. Path analysis estimated genetic and nongenetic contributions to variability in systolic blood pressure (SBP), S(I), and the correlation between them. In the offspring, there was a significant correlation between individuals for each trait, as well as significant correlations within and between individuals for all possible pairs of traits. Between generations, SBP, S(I), and BMI in parents correlated with the same traits in their offspring; BMI in parents correlated with S(I) and SBP in offspring; and S(I) in parents correlated with SBP in offspring. Path analysis estimated that among offspring, genetic effects unrelated to BMI accounted for 60.8% of the variation in SBP, 36.8% of the variation in S(I), and 31.5% of the correlation between SBP and S(I) after adjustment for age and sex. Heritable effects related to BMI accounted for an additional 14.0% of variation in SBP, 26.8% of variation in S(I), and 56.3% of variation in their correlation. CONCLUSIONS Clustering of hypertension and insulin resistance in Hispanic Americans is accounted for in part by heritable factors both associated with and independent of BMI.
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Affiliation(s)
- A H Xiang
- Department of Preventive Medicine, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
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Toscano E, Della Casa R, Mardy S, Gaetaniello L, Sadile F, Indo Y, Pignata C, Andria G. MULTISYSTEM INVOLVEMENT IN CONGENITAL INSENSITIVITY TO PAIN WITH ANHIDROSIS (CIPA), A NERVE GROWTH FACTOR RECEPTOR (TRK A)‐RELATED DISORDER. J Peripher Nerv Syst 2000. [DOI: 10.1111/j.1529-8027.2000.22-27.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E Toscano
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - R Della Casa
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - S Mardy
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - L Gaetaniello
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - F Sadile
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - Y Indo
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - C Pignata
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
| | - G. Andria
- Neuropediatrics 31: 39–41, 2000. Reprinted with permission from Georg Thieme Verlag
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27
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Toscano E, della Casa R, Mardy S, Gaetaniello L, Sadile F, Indo Y, Pignata C, Andria G. MULTISYSTEM INVOLVEMENT IN CONGENITAL INSENSITIVITY TO PAIN WITH ANHIDROSIS (CIPA), A NERVE GROWTH FACTOR RECEPTOR (TRK A)-RELATED DISORDER. J Peripher Nerv Syst 2000. [DOI: 10.1046/j.1529-8027.2000.00022-27.x] [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: 11/20/2022]
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28
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Cheng LSC, Davis RC, Raffel LJ, Xiang AH, Quinones M, Hsu G, Wen PZ, Toscano E, Azen SP, Hsueh WA, Buchanan TA, Rotter JI. Blood Pressure and Insulin Resistance Cosegregate at Two Distinct Regions on Chromosome 7. Hypertension 2000. [DOI: 10.1161/hyp.36.suppl_1.718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
P137
Purpose: Insulin resistance (IR) and hyperinsulinemia precede hypertension in Mexican Americans and may be a preclinical phenotype for hypertension. We tested the hypothesis that IR and blood pressure (BP) share genetic regulation by conducting a genome scan in healthy adult offspring of hypertensive probands, chosen so that the traits would not have been influenced by either the disease process or treatment. Methods: A total of 390 Mexican-Americans in 77 nuclear hypertension families were genotyped with 386 microsatellite markers. We performed two-point (by SIBPAL) and multipoint linkage analysis (by SOLAR) for BP, IR, and related traits. Results: In direct support of our hypothesis, we observed evidence for two loci on chromosome 7 that influenced both IR and BP. Two-point analysis showed evidence for linkage of a locus on 7p (∼18cM) with diastolic BP (DBP), systolic BP (SBP), mean arterial pressure (MAP), and two-hour insulin (p=0.01-0.05), with a LOD of 1.44 for SBP. More impressively, the locus on 7q (∼133cM) showed lod scores of 1.78 for SBP, and 2.97 for fasting insulin. Additional quantitative traits mapping to the 7q locus are plasma levels for leptin (LOD=1.5) and apoAII (LOD=2.0). This region overlaps with the diabesity locus reported in the Pima (Hanson et al. 1998). Two candidate genes exist in the region: PPP1R3 (∼135cM), which regulates skeletal muscle glycogenesis and has a role in type 2 diabetes (Xia et al. 1998), and leptin (∼126cM). Of particular interest, it appears that the two loci interact. Thus, the 7p locus lod score for MAP increases from 0.90 to 2.37 when an interaction with 7q is introduced Conclusions: 1) The coincident mapping of loci for BP and insulin supports the role of IR in the pathogenesis of hypertension in this population. 2) There appear to be at least two different genes on chromosome 7 responsible for BP and IR. 3) There is an interaction of these two genes, suggesting they are part of a common pathway for the IR-BP syndrome.
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Affiliation(s)
- Li S-C Cheng
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Richard C Davis
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Leslie J Raffel
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Anny H Xiang
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - M Quinones
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Grace Hsu
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - P-Z Wen
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - E Toscano
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Stan P Azen
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Willa A Hsueh
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Thomas A Buchanan
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
| | - Jerome I Rotter
- Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; USC, Los Angeles, CA; UCLA, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA; UCLA, Los Angeles, CA; USC, Los Angeles, CA; Univ of CA, Los Angeles, CA; USC, Los Angeles, CA; Cedars-Sinai Medical Ctr, Los Angeles, CA
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29
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Toscano E, della Casa R, Mardy S, Gaetaniello L, Sadile F, Indo Y, Pignata C, Andria G. Multisystem involvement in congenital insensitivity to pain with anhidrosis (CIPA), a nerve growth factor receptor(Trk A)-related disorder. Neuropediatrics 2000; 31:39-41. [PMID: 10774995 DOI: 10.1055/s-2000-15296] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [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] [Indexed: 10/16/2022]
Abstract
Congenital insensitivity to pain with anhidrosis (CIPA), a rare autosomal recessive disorder, is characterized by insensitivity to pain, self-mutilating behaviour, anhidrosis and recurrent hyperpyrexia. It is a hereditary sensory and autonomic neuropathy, also classified as HSAN, due to a defect of the receptor for nerve growth factor. CIPA is the first human genetic disorder caused by a defect in the neurotrophin signal transduction system. This is the first clinical report of CIPA patients characterized on molecular grounds. The clinical phenotypes of our patients show that CIPA is characterized by a multisystem involvement besides the nervous system, including bone fracture with slow healing, immunologic abnormalities, such as low response to specific stimuli, chronic inflammatory state ending in systemic amyloidosis. The molecular characterization allows a better understanding of most of the clinical features.
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Affiliation(s)
- E Toscano
- Department of Paediatrics, Federico II University, Naples, Italy
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30
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Abstract
Deletions of the DAZ (deleted in azoospermia) gene family are frequently responsible for male infertility and are generally assessed by analyses of genomic DNA extracted from peripheral leukocytes. The multicopy nature of this gene prevents the distinction of intragenic deletions or deletions not involving the whole DAZ gene cluster. Thus it is still unclear whether each DAZ copy is effectively expressed in the testis. We analysed, by reverse transcription-polymerase chain reaction (RT-PCR), the expression of DAZ, RBM and SRY genes, in testicular cells from infertile men affected by idiopathic severe hypospermatogenesis, obstructive azoospermia and Sertoli cell-only syndrome. Normal mRNA for DAZ, RBM and SRY were observed in obstructive azoospermia, whereas only SRY transcripts were detected when only Sertoli cells were present. Nine out of 10 patients affected by idiopathic severe hypospermatogenesis had normal expression of SRY, RBM and DAZ, while in one patient no DAZ transcript was detected, suggesting that his testiculopathy was related to the absence of DAZ expression. The lack of DAZ mRNA in testicular cells with an apparently normal DAZ gene constitution on DNA extracted from leukocytes may be explained by different hypotheses: (i) not all the copies of the DAZ gene cluster are transcribed in the germ cells and the reported patient had a small deletion involving only the active ones; (ii) the patient may be mosaic for the DAZ gene having a normal constitution in leukocytes and be deleted for DAZ gene in the testis; (iii) abnormalities of DAZ transcription may exist. These findings highlight the intrinsic interpretative difficulties of normal PCR analysis for DAZ and RBM on leukocytes and suggest caution in the use of germ cells for assisted reproductive techniques in these cases to avoid transmission of genetic abnormalities to male offspring.
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Affiliation(s)
- A Ferlin
- Clinica Medica 3, Department of Medical and Surgical Sciences and Institute of Histology and Embryology, University of Padova, Italy
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31
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Mardy S, Miura Y, Endo F, Matsuda I, Sztriha L, Frossard P, Moosa A, Ismail EA, Macaya A, Andria G, Toscano E, Gibson W, Graham GE, Indo Y. Congenital insensitivity to pain with anhidrosis: novel mutations in the TRKA (NTRK1) gene encoding a high-affinity receptor for nerve growth factor. Am J Hum Genet 1999; 64:1570-9. [PMID: 10330344 PMCID: PMC1377900 DOI: 10.1086/302422] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Congenital insensitivity to pain with anhidrosis (CIPA) is characterized by recurrent episodes of unexplained fever, anhidrosis (inability to sweat), absence of reaction to noxious stimuli, self-mutilating behavior, and mental retardation. Human TRKA encodes a high-affinity tyrosine kinase receptor for nerve growth factor (NGF), a member of the neurotrophin family that induces neurite outgrowth and promotes survival of embryonic sensory and sympathetic neurons. We have recently demonstrated that TRKA is responsible for CIPA by identifying three mutations in a region encoding the intracellular tyrosine kinase domain of TRKA in one Ecuadorian and three Japanese families. We have developed a comprehensive strategy to screen for TRKA mutations, on the basis of the gene's structure and organization. Here we report 11 novel mutations, in seven affected families. These are six missense mutations, two frameshift mutations, one nonsense mutation, and two splice-site mutations. Mendelian inheritance of the mutations is confirmed in six families for which parent samples are available. Two mutations are linked, on the same chromosome, to Arg85Ser and to His598Tyr;Gly607Val, hence, they probably represent double and triple mutations. The mutations are distributed in an extracellular domain, involved in NGF binding, as well as the intracellular signal-transduction domain. These data suggest that TRKA defects cause CIPA in various ethnic groups.
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Affiliation(s)
- S Mardy
- Department of Pediatrics, Kumamoto University School of Medicine, Kumamoto, Japan
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32
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Toscano E, Romero G, Oset C, Del Río J. Pharmacological characteristics and regulation of 5-HT receptor-stimulated phosphoinositide hydrolysis in the rat spinal cord. Gen Pharmacol 1999; 32:351-8. [PMID: 10211591 DOI: 10.1016/s0306-3623(98)00024-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
In slices from immature rat spinal cord, both 5-hydroxytryptamine (5-HT) and the 5-HT2A/C receptor agonists (+/-)-1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) and alpha-methyl-5-HT (alpha-Me-5-HT) stimulate phosphoinositide (PI) hydrolysis. PI breakdown is also increased by the 5-HT3 receptor agonist 2-Me-5-HT but not by phenylbiguanide. The effect of either 5-HT or DOI is blocked by selective 5-HT2A receptor antagonists such as spiperone and ketanserin and more markedly by mixed 5-HT2 receptor antagonists, such as ritanserin, methysergide and mesulergine, with higher affinity at the 2C subtype. The effect of 2-Me-5-HT is blocked by 5-HT2 and not by 5-HT3 receptor antagonists, indicating that 5-HT3 receptors do not directly or indirectly take part in PI hydrolysis in the spinal cord. Moreover, lesion with neonatal capsaicin of thin primary afferents to the dorsal spinal cord enhances inositol phosphate formation stimulated by 5-HT or DOI but not by 2-Me-5-HT. This lesion also increases 5-HT2A and 5-HT2C receptor density. After neonatal injection of 5,7-dihydroxytryptamine, which results in a marked loss of 5-HT content in the cord, 5-HT and 5-HT2 receptor agonists also enhance PI breakdown without a concomitant change in receptor number. The results suggest that the 5-HT-stimulated PI response in the rat spinal cord is associated only with the 5-HT2 receptor class, in particular with the 5-HT2C subtype.
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Affiliation(s)
- E Toscano
- Department of Pharmacology, School of Medicine, University of Navarra, Pamplona, Spain
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33
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Toscano E, Perretti A, Balbi P, Silvestro E, Andria G, Parenti G. Detection of subclinical central nervous system abnormalities in two patients with mucolipidosis III by the use of motor and somatosensory evoked potentials. Neuropediatrics 1998; 29:40-2. [PMID: 9553948 DOI: 10.1055/s-2007-973532] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We have studied motor, somatosensory, brainstem auditory and visual evoked potentials in two patients with ML III without overt neurologic symptoms. Both our patients showed abnormal central motor functions upon magnetic cortical stimulation; in addition, in one of them, we observed a decreased conduction velocity of the nervous impulse in the central tract of the upper limb somatosensory pathway, from the cervical spinal cord to sensory cortex. Our results suggest that central motor pathways are affected in both children and also that the central somatosensory system is involved in one of them. We propose that the electrophysiological techniques might be of help to detect, locate and monitor minimal neurological lesions of mild lysosomal disorders like ML III.
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Affiliation(s)
- E Toscano
- Department of Pediatrics, Università degli Studi di Napoli Federico II, Italy
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34
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Mendes-Giannini MJ, Toscano E, del Negro GB, Assis CM, Garcia NM. Immunochemical study of a Paracoccidioides brasiliensis polysaccharide-like antigen. J Med Vet Mycol 1995; 33:379-83. [PMID: 8683406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The polysaccharide antigen from P. brasiliensis has been largely employed in serologic tests ,as well as in skin tests, to evaluate cellular immunity. SDS-PAGE analysis of this antigen has revealed a variability in the number of bands exhibited by isolates SN, 265, 339, 113, and 18 (7 to 16 bands). The antigens obtained from isolates 2, PTL, 192 and Adel showed two or three bands. Glycoprotein analysis demonstrated a broad region between 50 and 90 kDa. Major bands of 48 and 30 kDa were present in almost all antigens. Optimal complement fixing dilution appears to be unaffected by the number of bands presented by different antigens. The immunoblot analysis revealed that the 90 and 30 kDa bands were mainly recognized by sera from paracoccidioidomycosis patients. Bands of high molecular weight were also recognized by most of the sera studied. Sera from histoplasmosis recognized the 94 kDa band. In conclusion, although the isolates exhibit quantitative variability in the number of fractions, it is possible to use only one or two samples given the greatest frequency of reactivity is seen in the 30 and 90 kDa fractions.
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Affiliation(s)
- M J Mendes-Giannini
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences-UNESP, Araraquara, São Paulo, Brazil
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35
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Iuan FC, Thomazini IA, Gianini MJ, Viterbo F, Toscano E, Moraes RA, Barravieira B. Reparation of peripheral nerves with fibrin glue prepared from snake venom. Preliminary results. SAO PAULO MED J 1995; 113:1000-2. [PMID: 8729745 DOI: 10.1590/s1516-31801995000500008] [Citation(s) in RCA: 10] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
A new fibrin glue obtained from snake venom is presented, with possible utilization in various fields of medicine. The preparation procedures and tests in the reparation of peripheral nerves are described. The preliminary results were similar to the conventional fibrin glue procedure.
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Affiliation(s)
- F C Iuan
- Universidade do Estado de São Paulo, Brazil
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36
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Mendes-Giannini M, Toscano E, Del Negro G, Assis C, Garcia N. Immunochemical study of aParacoccidioides brasiliensispolysaccharide-like antigen. Med Mycol 1995. [DOI: 10.1080/02681219580000741] [Citation(s) in RCA: 6] [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] Open
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37
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Romero G, Toscano E, Del Río J. Effect of prenatal exposure to antidepressants on 5-HT-stimulated phosphoinositide hydrolysis and 5-HT2 receptors in rat brain. Gen Pharmacol 1994; 25:851-6. [PMID: 7835628 DOI: 10.1016/0306-3623(94)90086-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
1. Female rats were given antidepressants, with different effects on 5-HT uptake, from day 6 of pregnancy until delivery. 2. 5-HT-stimulated inositol phosphate accumulation as well as 5-HT2 receptor density were measured at two different times in the pups. 3. Prenatal exposure to fluoxetine or iprindole reduced phosphoinositide hydrolysis in 25-day-old pups. However, chronic treatment of adult rats with fluoxetine or prenatal exposure to either desipramine or tianeptine did not modify inositol phosphate accumulation. 4. After prenatal exposure, only desipramine significantly decreased the density of [3H]ketanserin-labelled 5-HT2 receptors in the pups. 5. No correlation was found between changes in inositol phosphate formation and 5-HT2 receptor number.
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Affiliation(s)
- G Romero
- Department of Pharmacology, University of Navarra Medical School, Pamplona, Spain
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38
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Mendes-Giannini MJ, Ricci LC, Uemura MA, Toscano E, Arns CW. Infection and apparent invasion of Vero cells by Paracoccidioides brasiliensis. J Med Vet Mycol 1994; 32:189-97. [PMID: 7965489 DOI: 10.1080/02681219480000251] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Paracoccidioides brasiliensis probably uses many different mechanisms to establish itself in the host and cause disease. In this work, we assess an in vitro model system which uses cultured mammalian cells to investigate the virulence factors of P. brasiliensis. We were able to demonstrate an invasion process of the yeast form of this fungus in Vero cell cultures. We deduced that the overall invasive process involved three steps: adhesion, followed by invasion of individual epithelial cells and spread to adjacent cells.
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Affiliation(s)
- M J Mendes-Giannini
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, UNESP, Araraquara, São Paulo, Brazil
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39
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Romero G, Toscano E, Montero D, De Felipe MC, Del Rio J. Effect of prenatal exposure to tianeptine on different neurotransmitter receptors and 5-HT-stimulated inositol phosphate formation in rat brain. J Neural Transm (Vienna) 1992; 90:113-24. [PMID: 1334416 DOI: 10.1007/bf01250793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Tianeptine, an antidepressant drug enhancing 5-HT uptake, was given to pregnant rats in the last 15 days of gestation and different neurotransmitter receptors as well as 5-HT2 receptor-linked inositol phosphate formation were measured in the brains of the offspring. Prenatal exposure to tianeptine significantly decreased the density of 3H-imipramine binding sites in the cerebral cortex of the pups without affecting beta-adrenoceptors, serotonin 5-HT2 and 5-HT1B receptors or inositol phosphate formation after a 5-HT challenge. Striatal dopamine D2 receptors labelled with 3H-spiroperidol were not changed but an apparent increase in the affinity of dopamine was noticed in the pups prenatally exposed to the drug. The results show that the neurochemical profile of tianeptine markedly differs from that of most antidepressants.
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Affiliation(s)
- G Romero
- Department of Pharmacology, University of Navarra Medical School, Pamplona, Spain
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40
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Modica R, Bracco P, Toscano E, Toscano P. [The facial arch from 2 points of reference: anatomical and radiographic, via the anatomofunctional stomatognathic analyzer]. Minerva Stomatol 1985; 34:27-30. [PMID: 3857448] [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: 01/07/2023]
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41
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Pezzoli M, Borio PS, Toscano E. [Construction of a prosthesis with wire force distribution]. Minerva Stomatol 1980; 29:385-8. [PMID: 7005659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The various stages and technique for the construction of a partial removable prosthesis based on the wire force distribution is possible to obtain an individual prosthesis suitable for every patient, something that is not possible with other conventional systems, such as prefabricated fittings.
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42
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