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Gómez-Armayones S, Chimenos-Küstner E, Arranz C, Tous S, Marquez S, Penín RM, Quirós B, Taberna M, Alemany L, Servitje O, Mena M. Response to "The significance of oral epithelial dysplasia in the clinical management of oral potentially malignant disorders". Int J Oral Maxillofac Surg 2023; 52:511. [PMID: 36058823 DOI: 10.1016/j.ijom.2022.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/29/2022] [Indexed: 11/15/2022]
Affiliation(s)
- S Gómez-Armayones
- Department of Dermatology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain; Department of Dermatology, Hospital Clínic of Barcelona, Barcelona, Spain
| | - E Chimenos-Küstner
- Department of Odontostomatology, Odontological University Hospital of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - C Arranz
- Department Oral and Maxillofacial Surgery, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Tous
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - S Marquez
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - R-M Penín
- Department of Pathology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - B Quirós
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - M Taberna
- Department of Medical Oncology, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Program of Molecular Mechanisms and Experimental Therapy in Oncology, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - L Alemany
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - O Servitje
- Department of Dermatology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Mena
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
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Gómez-Armayones S, Chimenos-Küstner E, Arranz C, Tous S, Marquez S, Penín RM, Quirós B, Taberna M, Alemany L, Servitje O, Mena M. Risk factors for oral epithelial dysplasias to become malignant: clinical implications. Int J Oral Maxillofac Surg 2021; 51:473-480. [PMID: 34503889 DOI: 10.1016/j.ijom.2021.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 05/23/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
There is a lack of effective clinical management of oral epithelial dysplasias to reduce their risk of malignant transformation and considerable gaps in knowledge regarding the most effective means of treating such lesions. A retrospective cohort of biopsy-confirmed oral epithelial dysplasias consecutively diagnosed in the period 1995-2014 and followed-up until 2017 was identified from pathology department files. Demographic, clinical and follow-up information was collected. Multivariate Cox proportional-hazards models were performed to evaluate sociodemographic, clinical and pathological factors associated with progression to oral squamous cell carcinoma. The study included 144 oral epithelial dysplasias, of which 42% progressed to oral cancer at the end of follow-up (21 years). Clinical aspect of the lesion was described for 77 (53.5%) of the patients. Treatment, age, grade of the lesion and diagnostic period were independent prognostic factors for progression. When considering only patients with described clinical aspect, only treatment and grade of the lesion were independently associated with cancer. The results from this non-selected retrospective cohort of oral epithelial dysplasias underscore the existing limitations of the current standard-of-care of the patients and provide novel insights on the management of these lesions with and without described clinical aspect. Well-designed, robust prospective studies, a homogenized staging system and multidisciplinary treatment guidelines are warranted.
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Affiliation(s)
- S Gómez-Armayones
- Department of Dermatology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain; Department of Dermatology, Hospital Clínic of Barcelona, Barcelona, Spain.
| | - E Chimenos-Küstner
- Department of Odontostomatology, Odontological University Hospital of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
| | - C Arranz
- Department Oral and Maxillofacial Surgery, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Tous
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - S Marquez
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - R M Penín
- Department of Pathology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - B Quirós
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - M Taberna
- Department of Medical Oncology, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Program of Molecular Mechanisms and Experimental Therapy in Oncology, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - L Alemany
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - O Servitje
- Department of Dermatology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Mena
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona, Spain; Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
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Mena M, Pérez-Redondo A, Varela-Izquierdo V, Yélamos C. X-Ray Crystal Structures of Two Monopentamethylcyclopentadienylhafnium(IV) Complexes. CRYSTALLOGR REP+ 2021. [DOI: 10.1134/s1063774521030184] [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: 11/22/2022]
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Mehanna H, Taberna Sanz M, Tous S, Brooks J, von Buchwald C, Mena M, Batis N, Brakenhoff R, Baatenburg de Jong R, Klussmann J, Dalianis T, Mirghani H, Schache A, James J, Huang S, Broglie M, Hoffmann M, Alemany L. 911O Performance of dual p16 and HPV testing for determining prognosis in cancer of the oropharynx, the EPIC-OPC Study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Mena M, Hänni N, Ward S, Hirtenlechner E, Bewley R, Hubig C, Schollwöck U, Normand B, Krämer KW, McMorrow DF, Rüegg C. Thermal Control of Spin Excitations in the Coupled Ising-Chain Material RbCoCl_{3}. Phys Rev Lett 2020; 124:257201. [PMID: 32639763 DOI: 10.1103/physrevlett.124.257201] [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] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
We have used neutron spectroscopy to investigate the spin dynamics of the quantum (S=1/2) antiferromagnetic Ising chains in RbCoCl_{3}. The structure and magnetic interactions in this material conspire to produce two magnetic phase transitions at low temperatures, presenting an ideal opportunity for thermal control of the chain environment. The high-resolution spectra we measure of two-domain-wall excitations therefore characterize precisely both the continuum response of isolated chains and the "Zeeman-ladder" bound states of chains in three different effective staggered fields in one and the same material. We apply an extended Matsubara formalism to obtain a quantitative description of the entire dataset, Monte Carlo simulations to interpret the magnetic order, and finite-temperature density-matrix renormalization-group calculations to fit the spectral features of all three phases.
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Affiliation(s)
- M Mena
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - N Hänni
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
- Physikalisches Institut, University of Bern, Siedlerstrasse 5, CH-3012 Bern, Switzerland
| | - S Ward
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - E Hirtenlechner
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Institut Laue Langevin, CS 20156, F-38042 Grenoble, France
| | - R Bewley
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, United Kingdom
| | - C Hubig
- Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-University Munich, 80333 München, Germany
- Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
| | - U Schollwöck
- Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-University Munich, 80333 München, Germany
| | - B Normand
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - K W Krämer
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - D F McMorrow
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Ch Rüegg
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva 4, Switzerland
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
- Institute of Physics, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland
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Fulla M, Szafarowski T, Frias-Gomez J, Quiros B, Clavero O, Gomà M, Pavon MA, Jurek-Matusiak O, Lares HR, Mañós M, Alemany L, Mena M, Gonzalez X. Correction to: Human Papillomavirus and Factors Associated with Recurrence in Sinonasal Inverted Papillomas from Poland and Spain. Head Neck Pathol 2020; 14:768-770. [PMID: 32040821 PMCID: PMC7413926 DOI: 10.1007/s12105-020-01138-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The original version of this article unfortunately contained a mistake. Three values in Table 1 were incorrect. In "months of recurrence", range row, the intervals should be in numbers. They should read as 3-83 instead of Mar-83, 9-83 instead of Sep-83 and 3-36 instead of Mar-36. The corrected Table 1 is given below. The original article has been corrected.
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Affiliation(s)
- M Fulla
- Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain.
- Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
| | - T Szafarowski
- Department of Otorhinolaryngology, Faculty of Medicine and Dentistry, Medical University of Warsaw, Warsaw, Poland
| | - J Frias-Gomez
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - B Quiros
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - O Clavero
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - M Gomà
- Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Pathology, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - M A Pavon
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - O Jurek-Matusiak
- Department of Otorhinolaryngology, Faculty of Medicine and Dentistry, Medical University of Warsaw, Warsaw, Poland
| | - H R Lares
- Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
- Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - M Mañós
- Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
- Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - L Alemany
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - M Mena
- Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) - L'Hospitalet de Llobregat, Barcelona, Spain
- Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - X Gonzalez
- Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
- Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
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Fulla M, Szafarowski T, Frias-Gomez J, Quiros B, Clavero O, Gomà M, Pavon MA, Jurek-Matusiak O, Lares HR, Mañós M, Alemany L, Mena M, Gonzalez X. Human Papillomavirus and Factors Associated with Recurrence in Sinonasal Inverted Papillomas from Poland and Spain. Head Neck Pathol 2020; 14:758-767. [PMID: 31916205 PMCID: PMC7413944 DOI: 10.1007/s12105-019-01125-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/30/2019] [Indexed: 12/11/2022]
Abstract
Sinonasal inverted papilloma (SNIP) is a benign but locally aggressive tumor that has a tendency for recurrence and malignant transformation. The role of human papillomavirus (HPV) in SNIP is controversial. To determine the HPV-DNA prevalence and type distribution in SNIP in two different geographic areas and assess the association between SNIP recurrence and HPV infection, as well as additional potential etiologic factors. Two retrospective cohorts of SNIP patients from Poland and Spain were evaluated. Demographic, tobacco/alcohol use, clinical, and follow-up data were collected. All samples were subject to histopathologic evaluation, DNA quality control, and HPV-DNA detection by PCR. HPV-DNA positive samples and a random sample of HPV-DNA negative cases were further subject to p16INK4a analysis. Proportional-hazards models were used to evaluate the risk of recurrence by selected variables. Seventy-nine SNIP patients (46 from Spain diagnosed between 1995 and 2014, and 33 from Poland diagnosed between 2012 and 2017) were included in the study. HPV-DNA was detected in four patients (5.1%), two from each region, and all four were positive for the HPV11 subtype. Seventeen patients (21.5%) experienced recurrence, with a median time to recurrence of 14 months. No association was identified between lesional HPV-DNA positivity, toxic habits, Krouse stage, or malignant transformation and a higher risk of recurrence. The low prevalence of HPV-DNA in SNIPs suggests that HPV is not a main etiology for development of these lesions. With a lack of association between the evaluated factors and recurrence, further research with larger number of patients and additional biomarkers is warranted to further understand predisposing risk factors.
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Affiliation(s)
- M. Fulla
- grid.417656.7Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
| | - T. Szafarowski
- grid.13339.3b0000000113287408Department of Otorhinolaryngology, Faculty of Medicine and Dentistry, Medical University of Warsaw, Warsaw, Poland
| | - J. Frias-Gomez
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain
| | - B. Quiros
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.413448.e0000 0000 9314 1427Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - O. Clavero
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.413448.e0000 0000 9314 1427Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - M. Gomà
- grid.417656.7Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Department of Pathology, Hospital Universitari Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
| | - M. A. Pavon
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.413448.e0000 0000 9314 1427Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - O. Jurek-Matusiak
- grid.13339.3b0000000113287408Department of Otorhinolaryngology, Faculty of Medicine and Dentistry, Medical University of Warsaw, Warsaw, Poland
| | - H. R. Lares
- grid.417656.7Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
| | - M. Mañós
- grid.417656.7Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain ,grid.5841.80000 0004 1937 0247University of Barcelona, Barcelona, Spain
| | - L. Alemany
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.413448.e0000 0000 9314 1427Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - M. Mena
- grid.418701.b0000 0001 2097 8389Cancer Epidemiology Research Program, Catalan Institute of Oncology (ICO) – L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.413448.e0000 0000 9314 1427Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - X. Gonzalez
- grid.417656.7Department of Otorhinolaryngology, Hospital Universitari Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain ,grid.417656.7Program of Molecular Mechanisms and Experimental Therapy in Oncology, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, Barcelona, Spain
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Nieva M, Fabregat C, Tous S, Mena M, Teulé A, Lozano A, León X, Guix M, Bonfill T, Mesía R, Alemany L, Taberna M. Real-world data of clinicopathologic characteristics of young oropharyngeal cancer patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Palacios A, Balan D, Garay O, Mena M, Souto A, Augustovski F, Pichon-Riviere A. HT3 BASE DE COSTOS UNITARIOS EN SALUD EN ARGENTINA: UNA FUENTE DE INFORMACIÓN CONTINUAMENTE ACTUALIZADA PARA EVALUACIONES ECONOMICAS Y ANALISIS DE IMPACTO PRESUPUESTARIO EN UN SISTEMA DE SALUD FRAGMENTADO. Value Health Reg Issues 2019. [DOI: 10.1016/j.vhri.2019.08.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rindone G, Bandera A, Brioschi F, Dalu D, Pagni F, Vitiello P, Mena M, Fasola C, Rossi M, Crippa F, Suardi E, Epifani R, Zeroli C, Serio G, Cocito F, Doni E, Giglio O, Rossi R, Gori A, Gambacorti Passerini C, Verga L. A RETRO-PROSPECTIVE STUDY IN HIV+ PATIENTS AFFECTED BY LYMPHOMA: THE MUSTHAL MULTICENTER EXPERIENCE IN NORTHERN ITALY. Hematol Oncol 2019. [DOI: 10.1002/hon.216_2631] [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: 11/06/2022]
Affiliation(s)
- G. Rindone
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - A. Bandera
- Departement of Internal Medicine; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, Milan, Italy, Infectious Diseases Unit Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico; Milan Italy
| | - F.A. Brioschi
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - D. Dalu
- Department of Oncology; Oncology Unit, « L. Sacco» Hospital, University of Milan; Milan Italy
| | - F. Pagni
- Surgical Department; Pathology Unit, ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - P. Vitiello
- Clinic of Infectious Disease; ASST Monza, «San Gerardo Hospital», University of Milano-Bicocca; Monza Italy
| | - M. Mena
- Medical Area Department; Infectious Disease Unit, Legnano Hospital; Legnano Italy
| | - C. Fasola
- Department of Oncology; Oncology Unit, « L. Sacco» Hospital, University of Milan; Milan Italy
| | - M. Rossi
- Clinic of Infectious Disease; ASST Monza, «San Gerardo Hospital», University of Milano-Bicocca; Monza Italy
| | - F. Crippa
- Department of Health Sciences; Infectious and Tropical Disease Unit, San Paolo Hospital, University of Milano; Milan Italy
| | - E. Suardi
- Department of Health Sciences; Infectious and Tropical Disease Unit, San Paolo Hospital, University of Milano; Milan Italy
| | - R. Epifani
- Department of Oncology; Oncology Unit, Sant'Anna Hospital; Como Italy
| | - C. Zeroli
- Department of Internal Medicine, Infectiuos Disease Unit; ASST Valle Olona, Busto Arsizio Hospital; Busto Arsizio Italy
| | - G. Serio
- Pathology Department; Pathology Unit, ASST Valle Olona, Busto Arsizio Hospital; Busto Arsizio Italy
| | - F. Cocito
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - E. Doni
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - O. Giglio
- Department of Internal Medicine; Infectious Disease Unit, Sant'Anna Hospital; Como Italy
| | - R.S. Rossi
- Pathology Department; Pathology Unit, « L. Sacco» Hospital, University of Milan; Milan Italy
| | - A. Gori
- Departement of Internal Medicine; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, Milan, Italy, Infectious Diseases Unit Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico; Milan Italy
| | - C. Gambacorti Passerini
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
| | - L. Verga
- Clinic of Hematology; ASST Monza « San Gerardo» Hospital, University of Milano-Bicocca; Monza Italy
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Rodrigo J, Hermida-Prado F, Menendez ST, Granda-Díaz R, Durán LA, Leon X, Alemany L, Mena M, Ibisate NDR, Astudillo A, García- Pedrero J. PO-102 Amplification of genes at 11q13 in relation to HPV status in head and neck squamous cell carcinomas. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30268-3] [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: 11/26/2022]
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12
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González JC, Lop J, García J, López M, Taberna M, Mena M, Alemany L, Sumarroca A, Quer M, León X. PO-103 Competing mortality in oropharyngeal carcinoma according to HPV status. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30269-5] [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: 11/29/2022]
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13
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Taberna M, Torres M, Alejo M, Mena M, Tous S, Marquez S, Pavon M, Leon X, Garcia J, Guix M, Hijano R, Bonfill T, Aguilà A, Lozano A, Mesia Nin R, Alemany L, Bravo I. The use of HPV16-E5, EGFR and pEGFR as prognostic biomarkers for oropharyngeal cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.041] [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: 11/13/2022] Open
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Abstract
High-risk human papillomavirus (HPV) is now recognised as the principal cause of the increasing incidence rates of oropharyngeal squamous cell carcinoma (OPSCC) in some parts of the world. The primary risk factor for developing HPV-related OPSCC is oral HPV-infection and the majority of oral HPV-infections are acquired by oral sex. Progression into an OPSCC includes persistent infection with evasion of immune response in the microenvironment, the activation of viral early genes (E6, E7) in basal epithelial cells, the deregulation of cell cycle and the accumulation of chromosomal instability. Patients affected by HPV-related OPSCC tend to be younger and have better outcomes. This observation has lead current research to evaluate treatment de-escalation options to reduce long-term associated morbidity. Moreover, a different molecular profile for HPV-related OPSCC has been described, opening new options for targeted therapy and immunotherapy approaches. This paper comprehensively reviews our accumulated knowledge regarding the role of HPV in OPSCC spanning from infection to cancer development, including its clinical diagnosis, management and preventive strategies.
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Affiliation(s)
- M Taberna
- Department of Medical Oncology;; Cancer Epidemiology Research Program, IDIBELL, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona;; Department of Medicine, University of Barcelona, Barcelona;.
| | - M Mena
- Cancer Epidemiology Research Program, IDIBELL, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona;; CIBER in primary and secondary prevention of viral induced cancers (CIBERONC), Madrid, Spain
| | - M A Pavón
- Cancer Epidemiology Research Program, IDIBELL, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona
| | - L Alemany
- Cancer Epidemiology Research Program, IDIBELL, Catalan Institute of Oncology (ICO), L'Hospitalet de Llobregat, Barcelona;; Epidemiology and Public Health, Centro de Investigación Biomédica en Red: Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - M L Gillison
- Department of Medicine, The Ohio State University, Columbus, USA
| | - R Mesía
- Department of Medical Oncology;; Department of Medicine, University of Barcelona, Barcelona
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15
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Ward S, Mena M, Bouillot P, Kollath C, Giamarchi T, Schmidt KP, Normand B, Krämer KW, Biner D, Bewley R, Guidi T, Boehm M, McMorrow DF, Rüegg C. Bound States and Field-Polarized Haldane Modes in a Quantum Spin Ladder. Phys Rev Lett 2017; 118:177202. [PMID: 28498681 DOI: 10.1103/physrevlett.118.177202] [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] [Received: 08/19/2016] [Indexed: 06/07/2023]
Abstract
The challenge of one-dimensional systems is to understand their physics beyond the level of known elementary excitations. By high-resolution neutron spectroscopy in a quantum spin-ladder material, we probe the leading multiparticle excitation by characterizing the two-magnon bound state at zero field. By applying high magnetic fields, we create and select the singlet (longitudinal) and triplet (transverse) excitations of the fully spin-polarized ladder, which have not been observed previously and are close analogs of the modes anticipated in a polarized Haldane chain. Theoretical modeling of the dynamical response demonstrates our complete quantitative understanding of these states.
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Affiliation(s)
- S Ward
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - M Mena
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - P Bouillot
- Department of Medical Imaging and Information Sciences, Interventional Neuroradiology Unit, University Hospitals of Geneva, CH-1211 Geneva, Switzerland
- Laboratory for Hydraulic Machines, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - C Kollath
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva, Switzerland
- HISKP, University of Bonn, Nussallee 14-16, 53115 Bonn, Germany
| | - T Giamarchi
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - K P Schmidt
- Theoretische Physik I, Staudtstrasse 7, FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - B Normand
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - K W Krämer
- Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland
| | - D Biner
- Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland
| | - R Bewley
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxford OX11 0QX, United Kingdom
| | - T Guidi
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxford OX11 0QX, United Kingdom
| | - M Boehm
- Institut Laue Langevin, 6 rue Jules Horowitz BP156, 38024 Grenoble CEDEX 9, France
| | - D F McMorrow
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - Ch Rüegg
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
- Department of Quantum Matter Physics, University of Geneva, CH-1211 Geneva, Switzerland
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Ndiaye C, Mena M, Alemany L. Correction to Lancet Oncol 2014; 15: 1324. HPV DNA, E6/E7 mRNA, and p16INK4a detection in head and neck cancers: a systematic review and meta-analysis. Lancet Oncol 2015; 16:e262. [PMID: 26065610 DOI: 10.1016/s1470-2045(15)70270-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Mena M, Perry RS, Perring TG, Le MD, Guerrero S, Storni M, Adroja DT, Rüegg C, McMorrow DF. Spin-wave spectrum of the quantum ferromagnet on the pyrochlore lattice Lu2V2O7. Phys Rev Lett 2014; 113:047202. [PMID: 25105649 DOI: 10.1103/physrevlett.113.047202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Indexed: 06/03/2023]
Abstract
Neutron inelastic scattering has been used to probe the spin dynamics of the quantum (S=1/2) ferromagnet on the pyrochlore lattice Lu(2)V(2)O(7). Well-defined spin waves are observed at all energies and wave vectors, allowing us to determine the parameters of the Hamiltonian of the system. The data are found to be in excellent overall agreement with a minimal model that includes a nearest-neighbor Heisenberg exchange J = 8.22(2) meV and a Dzyaloshinskii-Moriya interaction (DMI) D = 1.5(1) meV. The large DMI term revealed by our study is broadly consistent with the model originally used to explain the magnon Hall effect in this compound [Onose et al., Science 329, 297 (2010) and Ideue et al., Phys. Rev. B 85, 134411 (2012)]. However, our ratio of D/J = 0.18(1) is roughly half of their value, and is much larger than those found in other theoretical studies [Xiang et al., Phys. Rev. B 83, 174402 (2011) and Mook et al., Phys. Rev. B 89,134409 (2014)].
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Affiliation(s)
- M Mena
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom and Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - R S Perry
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom and Centre for Science at Extreme Conditions, University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ, Scotland
| | - T G Perring
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom and ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - M D Le
- Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany
| | - S Guerrero
- Condensed Matter Theory, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - M Storni
- Condensed Matter Theory, Paul Scherrer Institute, CH-5232 Villigen, Switzerland
| | - D T Adroja
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - Ch Rüegg
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland and DPMC-MaNEP, University of Geneva, CH-1211 Geneva 4, Switzerland
| | - D F McMorrow
- London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
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18
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Medarde M, Mena M, Gavilano JL, Pomjakushina E, Sugiyama J, Kamazawa K, Pomjakushin VY, Sheptyakov D, Batlogg B, Ott HR, Månsson M, Juranyi F. 1D to 2D Na+ ion diffusion inherently linked to structural transitions in Na0.7CoO2. Phys Rev Lett 2013; 110:266401. [PMID: 23848903 DOI: 10.1103/physrevlett.110.266401] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 04/12/2013] [Indexed: 05/27/2023]
Abstract
We report the observation of a stepwise "melting" of the low-temperature Na-vacancy order in the layered transition-metal oxide Na0.7CoO2. High-resolution neutron powder diffraction analysis indicates the existence of two first-order structural transitions, one at T1≈290 K followed by a second at T2≈400 K. Detailed analysis strongly suggests that both transitions are linked to changes in the Na mobility. Our data are consistent with a two-step disappearance of Na-vacancy order through the successive opening of first quasi-1D (T1>T>T2) and then 2D (T>T2) Na diffusion paths. These results shed new light on previous, seemingly incompatible, experimental interpretations regarding the relationship between Na-vacancy order and Na dynamics in this material. They also represent an important step towards the tuning of physical properties and the design of tailored functional materials through an improved control and understanding of ionic diffusion.
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Affiliation(s)
- M Medarde
- Laboratory for Developments and Methods, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
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Santisteban D, Mena M, McCabe B. 2013 – Randomized controlled trial comparing individually-based and family-based treatments for internalizing, externalizing, and family symptoms in hispanic youth. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76947-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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20
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Mañu A, Fresquet V, Mena M, Sánchez S, Espinós J, Fernandez HOA, Fernández-Zapico M, Knutson KL, Martínez-Climent JA, Santisteban M. Abstract P5-03-07: Targeting Hedgehog pathway to reverse chemoresistance in breast cancer stem cells. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p5-03-07] [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
Abstract
PURPOSE: Hedgehog (HH) pathway has been implicated in maintenace and survival of breast cancer and cancer stem cells, EMT regulation, breast carcinogenesis and resistance to chemoradiation in solid tumors. Dysregulation of this pathway occurs in more than 50% of breast cancers. We have already demonstrated that immune-induced epithelial to mesenchymal transition (EMT) leads to the generation of breast cancer stem cells (BCSCs) from a parental epithelial breast cancer cell line in an in vivo murine model (Cancer Research 2009). The aim of our study is to demonstrate that resistance in the BCSCs is linked to HH hyperactivation and that the selective blockade of this pathway could eradicate this subpopulation of BCSCs in preclinical models.
METHODS: One parental epithelial (E) and three mesenchymal BCSCs cell lines (M1, M2 and M3) were used for all the in vitro experiments. qRT-PCR was used to quantify the expression of the gene components of the pathway and gene targets. Measurement of Gli1, caspase 3 and Cyclin D1 protein expression was determined by Western blot. Cell viability assays were performed with Paclitaxel and the HH inhibitor GDC-0449. Apoptosis assays were performed when cell lines were treated with paclitaxel (10nM), GDC-0449 (25uM) or the combination of them. For the in vivo xenografted mouse model, 106 cells (E and M2) were inoculated sc respectively into the flank of 6–8 week-old syngeneic female FVB/N-TgN (MMTVneu) 202Mul/J mice. Treatment was started on daily GDC-0449 (ip), paclitaxel (ip on days 1, 4 and 8) or both drugs when tumors reached 0.5 cm2. Statistical analysis was performed using one-way ANOVA with the Bonferroni multiple comparison test.
RESULTS: Activity of the HH measured by the expression of Gli1 was increased in BCSC cell lines as compared to E cell line (p < 0.001). This was antagonized as expected by treatment with GDC-0449. Reporter and expression assay showed that GDC-0449 decreases Gli1 transcriptional activity and levels of a HH downstream target gene, cyclin D1. In all BCSC lines (but not in the E cell line), a synergistic effect was showed with the combination treatment as compared to control (p ≤ 0.01) and to paclitaxel or GDC-0449 alone (p ≤ 0.05 respectively) as well as a highly increased apoptotic activity (p ≤ 0.001 with control and p ≤ 0.05 with monotherapy). Tumors derived from M2 injection regressed when the combination schedule was administered (p ≤ 0.05) at 2 weeks after the start of the treatment.
CONCLUSION: The inhibition of the HH pathway with GDC-0449 plus paclitaxel demonstrates a synergistic therapeutic effect in comparison to monotherapy, as shown by increased apoptotic activity, cell cycle arrest and significant reduction of tumor size in vivo. Together these results provide the rationale for future clinical trials including the blockade HH and standard chemotherapy in order to eradicate the whole population of tumor cells (also BCSCs) within the tumors and avoid disease relapse and metastasis in breast cancer patients.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P5-03-07.
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Affiliation(s)
- A Mañu
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - V Fresquet
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - M Mena
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - S Sánchez
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - J Espinós
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - Hidalgo OA Fernandez
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - M Fernández-Zapico
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - KL Knutson
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - JA Martínez-Climent
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
| | - M Santisteban
- Clinic University of Navarra, Pamplona, Navarra, Spain; Foundation for Applied Medical Research, Pamplona, Navarra, Spain; Mayo Clinic, Rochester, MN
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21
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Mena M, Walther AM. Rock magnetic properties of drill cutting from a hydrocarbon exploratory well and their relationship to hydrocarbon presence and petrophysical properties. ACTA ACUST UNITED AC 2012. [DOI: 10.1144/sp371.14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractThe Golfo San Jorge Basin is one of the most important hydrocarbon-producing basins in Argentina. A study of magnetic properties performed on drill cutting from an oil well drilled in this basin was carried out. The cutting samples, taken from an interval of about 400 m thickness, correspond to the upper units of the Pozo D-129 Formation, the main source rock of the basin. Magnetic susceptibility measurements were made and rock-magnetism studies were conducted. Concentration indices of the different magnetic species determined were calculated based on isothermal remanent magnetization acquisition curves. A correlation analysis among magnetic properties, hydrocarbon content and well logs (sonic, neutron, density, induction, resistivity and photoelectric factor) was performed. Several kinds of significant correlations were found: a positive correlation between susceptibility and relative hydrocarbon content; a positive correlation between magnetic properties and porosities (especially good with the neutron log porosity); and a negative correlation between the concentration indices of some magnetic species (magnetite and pyrrhotite) and resistivity. Pyrrhotite could be directly related to the presence or migration of hydrocarbons through the porous units.The qualitative correlations between magnetic data and key petrophysical parameters such as porosity, along with the association of magnetic mineralogy to hydrocarbon presence or migration, suggest the potential usefulness of these techniques for subsurface exploration.
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Affiliation(s)
- M. Mena
- Dpto. Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
| | - A. M. Walther
- Dpto. Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
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Hernán-Gómez A, Martín A, Mena M, Santamaría C. Incorporation of different lithium aluminates to titanium oxide organometallic ligands. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311084613] [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: 11/10/2022] Open
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23
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Martín A, González-del Moral O, Mena M, Santamaría C. Isocyanide insertion processes into the oxonitrido [{Ti(η 5-C 5Me 5)(μ-O)} 3(μ 3-N)]. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311084571] [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: 11/10/2022] Open
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Pérez-Redondo A, Caballo J, Mena M, Yélamos C. New titanium nitrido complexes from [{TiCp*(μ-NH)} 3(μ 3-N)] and methyltriflate. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311084455] [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: 11/10/2022] Open
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25
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Cabrera Schulmeyer MC, Mena M, Bedoya E, Varela V. [Non cardiac surgery in a man after a recent coronary angioplasty procedure: intraoperative transesophageal echocardiography is highly useful]. Rev Esp Anestesiol Reanim 2011; 58:393-395. [PMID: 21797093 DOI: 10.1016/s0034-9356(11)70093-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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26
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De Paschale M, Cagnin D, Cerulli T, Mena M, Magnani C, Perini P, Re T, Villa M, Viganò P, Maltempo C, Manco MT, Agrappi C, Mirri P, Gatti A, Rescaldani C, Clerici P. Epidemiology of HIV-1 subtypes in an urban area of northern Italy. Clin Microbiol Infect 2010; 17:935-40. [PMID: 20874813 DOI: 10.1111/j.1469-0691.2010.03382.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The distribution of the different subtypes of HIV varies from one region of the world to another. Subtype B is predominant in Europe and the USA, but there has been a gradual increase in non-B subtypes as a result of migration from regions where they are endemic, and this may have important implications for the control of HIV-1. The aim of this study was to assess the prevalence of HIV-1 subtypes in an urban area of northern Italy in the period 1997-2008. Forty-nine (12.2%; 95% CI, 9.00-15.40) of 401 patients investigated carried a non-B subtype, the prevalence of which was 7.7% (95% CI, 4.96-10.44) among native Italians and 55.3% (95% CI, 39.49-71.11) among non-Italians, 1.6% (95% CI, 0.00-3.81) among ex-intravenous drug addicts, 7.6% (95% CI, 1.21-13.99) among homosexual/bisexual men and 20.5% (95% CI, 14.83-26.17) among heterosexuals, 6.8% (95% CI, 3.37-10.23) among Italians infected as a result of sexual contacts in Italy, and 55.0% (95% CI, 33.20-76.80) among Italians infected abroad or by foreign partners. Overall prevalence increased from 2.9% (95% CI, 0.00-6.11) before 1993 to 23.0% (95% CI, 16.31-29.69) in the period 2001-2008. The results demonstrate that there has been an increase in non-B subtypes (especially sexually transmitted infections), particularly among patients infected abroad or by foreign partners.
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Affiliation(s)
- M De Paschale
- Microbiology Unit, Hospital of Legnano, Milan, Italy.
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Oroz I, Sánchez-Moreno I, Mena M, García-Junceda E. Cloning and expression of a putative rhamnulose-1-phosphate aldolase from the hyperthermophilic eubacterium Thermotoga maritima. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mena M, Rodriguez-Navarro J, Ros R, de Yebenes J. On the Pathogenesis and Neuroprotective Treatment of Parkinson Disease: What have we Learned from the Genetic Forms of this Disease? Curr Med Chem 2008; 15:2305-20. [DOI: 10.2174/092986708785909148] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Martin A, Garcia-Castro M, Hernan-Gomez A, Mena M, Santamaria C, Yelamos C. Cleavage of Ti 3E3( E= O, N) rings by aluminium derivatives. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308087187] [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: 11/10/2022] Open
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Ancarani F, Angeli E, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, Monforte AD, Cingolani A, Galli M, Orofino GC, Girardi E, Marino N, Bongiovanni M, Morsica G, Narciso P, Pastecchia C, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Maracci M, Tirelli U, Cinelli R, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, De Marco M, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetti S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Lepri AC, Solmone M, Girardi E, Lalle E, Abbate I, Monforte AD, Cozzi-Lepri A, Alessandrini A, Piscopo R, Ebo F, Cosco L, Antonucci G, Ippolito G, Capobianchi MR. Evolution of HVR-1 Quasispecies after 1-Year Treatment in HIV/HCV-Coinfected Patients According to the Pattern of Response to Highly Active Antiretroviral Therapy. Antivir Ther 2006. [DOI: 10.1177/135965350601100102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hepatitis C virus (HCV) variability is mainly attributed to the ability of the virus to respond to host immune pressure, acting as a driving force for the evolution of quasispecies. This study was aimed at studying the changes in HVR-1 heterogeneity and the evolution of HCV quasispecies in HIV/HCV-coinfected patients according to the pattern of response to highly active antiretroviral therapy (HAART). Sixteen HIV/HCV-coinfected patients harbouring HCV genotype 1 and who had been on HAART for at least 1 year, 8 showing increasing CD4+T-cell counts (immunological responders) and 8 showing a stable or decreasing CD4+ T-cell counts (immunological non-responders), were selected from a prospective cohort study. After 1 year of HAART, 11 patients showed HIV viral load <2.6 log10 cp/ml (virological responders), and 5 showed HIV viral load above this value (virological non-responders). Plasma samples, collected before starting therapy and after 1 year of HAART, underwent clonal sequence analysis for HVR-1 region of HCV. Non-synonymous/synonymous substitutions ratio (Ka/Ks), aminoacidic complexity (normalized Shannon entropy) and diversity (p-distance), were considered as parameters of quasispecies heterogeneity. After 1 year of HAART, heterogeneity of HVR-1 quasispecies significantly decreased in virological non-responders, whereas the heterogeneity tended to increase in virological responders. The differences in the evolution were less stringent, when considering immunological response. On the other hand, profound qualitative modifications of HVR-1 quasispecies were observed only in patients with both immunological and virological HAART response. On the whole, these findings suggest that, in patients undergoing HAART, the extent of HCV variability and the evolution of HVR-1 quasispecies is influenced by the pattern of response to antiretroviral therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Enrico Girardi
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Eleonora Lalle
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Isabella Abbate
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | | | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London
| | | | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova
| | - Francesca Ebo
- Department of Infectious Diseases, Hosp Civile San Giovanni e Paolo, Venezia
| | - Lucio Cosco
- Department of Infectious Diseases, A. Pugliesi Catanzaro
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Segovia N, Pulinets S, Leyva A, Mena M, Monnin M, Camacho M, Ponciano M, Fernandez V. Ground radon exhalation, an electrostatic contribution for upper atmospheric layers processes. RADIAT MEAS 2005. [DOI: 10.1016/j.radmeas.2005.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Antonucci G, Girardi E, Cozzi-Lepri A, Capobianchi MR, Morsica G, Pizzaferri P, Ladisa N, Sighinolfi L, Chiodera A, Solmone M, Lalle E, Ippolito G, Monforte AD, Ancarani F, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, d'Arminio Monforte A, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Prete MSD, Tirelli U, Cinelli R, Pastore G, Ladisa N, Suter GMBF, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, Marco MD, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, Stefano CD, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, Luca AD, Giambenedetti SD, Zaccarelli M, Acinapura R, Longis PD, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, Lalla FD, Tositti G, Lepri AC. Response to Haart and Gb Virus Type C Coinfection in a Cohort of Antiretroviral-Naive HIV-Infected Individuals. Antivir Ther 2005. [DOI: 10.1177/135965350501000108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The prognostic role of GB virus type C (GBV-C) viraemia in HIV-infected subjects treated with highly active antiretroviral therapy (HAART) is still undefined, The aim of this analysis is to assess the relationship between GBV-C infection and response to antiretroviral therapy among HIV-infected subjects initiating HAART when antiretroviral-naive. A prospective, observational study of 400 HIV-infected patients with measurements of GBV-C RNA, hepatitis C virus (HCV) antibodies and HCV RNA determined from plasma stored prior to HAART initiation, Time to virological (achieving HIV RNA ≤500 copies/ml) and immunological success (a CD4+ count increase of ≥200cells/μl), and the time to virological relapse (confirmed HIV RNA >500 copies/ml) were assessed by Kaplan-Meier methods and Cox proportional hazard regression model. Of the subjects, 117 (29.3%) were GBV-C positive and, overall, 351 (87.8%) patients achieved virological success, After controlling for a number of confounders including HCV RNA, GBV-C viraemic patients experienced a significantly lower risk of HIV rebound than those who were GBV-C negative [relative hazard (RH)=0.56, 95% CI: 0.34–0.93, P=0.03], Conversely, the probability of achieving initial virological success or CD4+ count response after HAART did not differ between GBV-C-negative and -positive subjects, These results suggest that GBV-C coinfection may play a role in determining the rate of HIV rebound possibly by competing with HIV replication after HIV load has been successfully suppressed by HAART.
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Affiliation(s)
| | - Giorgio Antonucci
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Enrico Girardi
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Giulia Morsica
- Institute of Infectious Diseases, Ateneo Vita e Salute, S Raffaele Hospital, Milano, Italy
| | - Paolo Pizzaferri
- Department of Infectious Diseases and Hepatology, Azienda Ospedaliera, Parma, Italy
| | - Nicoletta Ladisa
- Institute of Infectious and Tropical Diseases, University of Bari, Bari, Italy
| | - Laura Sighinolfi
- Department of Infectious Diseases, Arcispedale S Anna, Ferrara, Italy
| | | | | | - Eleonora Lalle
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Giuseppe Ippolito
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
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Luca AD, Cozzi-Lepri A, Perno CF, Balotta C, Giambenedetto SD, Poggio A, Pagano G, Tositti G, Piscopo R, Forno AD, Chiodo F, Magnani G, Monforte AD, Angarano G, Antinori A, Balotta C, Cozzi-Lepri A, Monforte AD, De Luca A, Monno L, Perno CF, Rusconi S, Montroni M, Scalise G, Zoli A, Del Prete MS, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetto S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Lepri AC. Variability in the Interpretation of Transmitted Genotypic HIV-1 Drug Resistance and Prediction of Virological Outcomes of the Initial Haart by Distinct Systems. Antivir Ther 2004. [DOI: 10.1177/135965350400900505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
High level HIV-1 drug resistance in recently infected treatment-naive individuals correlates with sub-optimal virological responses to highly active antiretroviral therapy (HAART). To determine whether genotypic HIV-1 drug resistance in chronic naive patients, as interpreted by various systems, could predict the virological outcomes of HAART, isolates from patients enrolled in a prospective observational cohort (ICoNA) prior to treatment start were genotyped. Genotypic susceptibility scores (GSS) assigned to the initial HAART regimens using the interpretations of pre-therapy resistance mutations by 13 systems were related to virological outcomes. Of 415 patients, 42 (10%) had at least one major resistance mutation. According to the different interpretations, 1.9–20.5% of patients had some level of resistance to at least one drug in the initial regimen. In multivariable analysis, GSS from two systems significantly predicted the time to virological success: Rega 5.5, for each unit increase in GSS adjusted relative hazard (RH) 1.86 [95% confidence intervals (95% CI): 1.15–3.02] and hivresistanceWeb v3, RH 1.87 (95% CI: 1.00–3.48). With three other systems, GSS showed a trend towards a significant prediction of success: Retrogram 1.6, RH 2.33 (95% CI: 0.98–5.53), Menéndez 2002, RH 2.36 (95% CI: 0.97–5.72) and Stanford hivdb, RH 2.06 (95% CI: 0.94–4.49). Genotypic resistance testing coupled with adequate interpretation in chronic naive patients can usefully identify those at risk of sub-optimal virological response to HAART.
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Affiliation(s)
| | - Andrea De Luca
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Alessandro Cozzi-Lepri
- Royal Free Centre for HIV Medicine and Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Claudia Balotta
- Institute of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | | | - Antonio Poggio
- Department of Infectious Diseases, Civile Hospital, Verbania, Italy
| | - Gabriella Pagano
- Department of Infectious Diseases, S Martino Hospital, Genova, Italy
| | - Giulia Tositti
- Department of Infectious Diseases, Vicenza Hospital, Vicenza, Italy
| | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova, Italy
| | - Antonio Del Forno
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Francesco Chiodo
- Institute of Infectious Diseases, University of Bologna, Bologna, Italy
| | - Giacomo Magnani
- Department of Infectious Diseases, Santa Maria Nuova Hospital, Reggio Emilia, Italy
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Puoti M, Cozzi-Lepri A, Ancarani F, Bruno R, Ambu S, Ferraro T, Tundo P, Santantonio T, Toti M, Bonasso M, Monforte AD, Ancarani F, Antonucci G, Bonasso M, Bruno R, Cozzi-Lepri A, Monforte AD, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Zoli A, Prete MSD, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Lo Caputo S, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Ortona L, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Del Forno L, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Cozzi-Lepri A. The Management of Hepatitis B Virus/HIV-1 Co-Infected Patients Starting Their First Haart Regimen. Treating Two Infections for the Price of One Drug? Antivir Ther 2004. [DOI: 10.1177/135965350400900506] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We examined the impact of a lamivudine-containing highly active antiretroviral therapy (HAART) regimen on 164 hepatitis B virus/HIV co-infected individuals starting their first HAART. Lamivudine-treated patients (accounting for 73% of the study population) showed a significantly lower level of alanine aminotransferase over follow-up [–81.1 mU/ml mean difference; 95% confidence intervals (95% CI): –30.3; –131.7, P=0.003] and a significantly reduced risk of liver-related morbidity/mortality [Relative hazard (RH)=0.07; 95% CI: 0.01–0.38, P=0.002] than those starting a lamivudine sparing-regimen.
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Affiliation(s)
| | - Massimo Puoti
- Institute of Infectious and Tropical Diseases, Spedali Civili, University of Brescia, Brescia, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | - Fausto Ancarani
- Institute of Infectious Diseases and Public Health, Umberto I Hospital, University of Ancona, Ancona, Italy
| | - Raffaele Bruno
- Institute of Infectious and Tropical Diseases, IRCCS S Matteo, University of Pavia, Pavia, Italy
| | - Silvia Ambu
- Department of Infectious Diseases, Azienda Ospedaliera Careggi, Firenze, Italy
| | - Teresa Ferraro
- Department of Infectious Diseases, Ospedale A Puglise, Catanzaro, Italy
| | - Paolo Tundo
- Department of Infectious Diseases, Ospedale Santa Caterina Novella, Galatina (Lecce), Italy
| | | | - Mario Toti
- Department of Infectious Diseases, Ospedale di Grosseto, Grosseto, Italy
| | - Marino Bonasso
- Department of Infectious Diseases, Ospedale ‘Amedeo Savoia’, Torino, Italy
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Chianese R, Nebuloni E, De Paschale M, Gatti A, Mena M. Absolute TCD4+ counting by a minimalist dual-platform flow cytometric method. J BIOL REG HOMEOS AG 2003; 17:358-65. [PMID: 15065767] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
UNLABELLED The aim of this work was to compare the performance of an absolute TCD4+ counting method based on total WBC gating versus the standard lymphocyte (Ly) gating method, in order to develop a flow cytometric (FCM) minimalist strategy for TCD4+ enumeration. METHOD 132 routine peripheral blood samples, mainly from HIV infected patients, were labelled with CD3-FITC/CD4-PE/CD45-PECy5 and analyzed by two gating methods: a) standard method based on Ly immunological gating (CD45++SSClow), followed by the determination of CD3+CD4+ percentage and absolute number (# calculation using Ly # from hematological analyser (HA); b) total WBC immunological gate on biparametric scatter CD45/CD4, followed by CD4++SSClow percentage determination and absolute number calculation using WBC absolute number from hematological counter without using the WBC differential. Moreover on 63 samples Ly # based on Ly % from FCM and WBC counting from HA was compared with Ly # from HA. RESULTS The TCD4+/microL ranged from 3 to 3277 and the statistical analysis results showed: a) linear regression: r2 = 0.9847; b) Bland & Altman analysis: difference mean = -56.22; agreement range = +95.68 / -208.12; c) the mean of result difference/mean value*100 between two methods was -9.06%; d) comparison between regression line and the boundaries for acceptable residual values based on regressed confidence limits found by A. Kunkl et al showed regression line within boundaries near the upper limits. The Ly/microL count ranged from 635 to 8752. The statistical analysis results showed: a) linear regression: r2 = 0.9764; b) Bland & Altman analysis: difference mean = -362.93; agreement range = +134.51 / -860.37; c) the mean of result difference/mean value*100 between two methods was -16.12%. CONCLUSIONS Our results suggest a fair agreement between the two gating methods, but the one based on total WBC gate gives TCD4+/microL counts systematically higher than the standard method. This finding can be attributed to a systematic lower estimation of Ly% by HA.
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Affiliation(s)
- R Chianese
- Department of Hematology and Blood Transfusion, Hospital of Legnano, Milano, Italy.
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Segovia N, Armienta M, Valdes C, Mena M, Seidel J, Monnin M, Peña P, Lopez M, Reyes A. Volcanic monitoring for radon and chemical species in the soil and in spring water samples. RADIAT MEAS 2003. [DOI: 10.1016/s1350-4487(03)00155-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Treatment of [[Ti(eta5-C5Me5)(mu-NH)]3(mu3-N)] (1) with the diolefin complexes [[MCl(cod)]2] (M = Rh, Ir; cod = 1,5-cyclooctadiene) in toluene afforded the ionic complexes [M-(cod)(mu3-NH)3Ti3(eta5-C5Me5)3(mu3-N)]Cl [M = Rh (2), Ir (3)]. Reaction of complexes 2 and 3 with [Ag(BPh4)] in dichloromethane leads to anion metathesis and formation of the analogous ionic derivatives [M(cod)(mu3-NH)3Ti3-(eta5-C5Me5)3(mu3-N)][BPh4] [M = Rh (4), Ir (5)]. An X-ray crystal structure determination for 5 reveals a cube-type core [IrTi3N4] for the cationic fragment, in which 1 coordinates in a tripodal fashion to the iridium atom. Reaction of the diolefin complexes [[MCl(cod))2] (M = Rh, Ir) and [[RhCl(C2H4)2]2] with the lithium derivative [[Li(mu3-NH)2(mu3-N)-Ti3(eta5-C5Me5)3(mu3-N)]2] x C7H8 (6 C7H8) in toluene gave the neutral cube-type complexes [M(cod)(mu-NH)2(mu3-N)Ti3-(eta5-C5Me5)3(mu3-N)] [M = Rh (7), Ir (8)] and [Rh(C2H4)2(mu3-NH)2(mu3-N)Ti3(eta5-C5Me5)3(mu3-N)] (9), respectively. Density functional theory calculations have been carried out on the ionic and neutral azaheterometallocubane complexes to understand their electronic structures.
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Affiliation(s)
- K Freitag
- Departamento de Química Inorgánica Universidad de Alclá, Alcalá de Henares-Madrid, Spain
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Perno CF, Cozzi-Lepri A, Balotta C, Forbici F, Violin M, Bertoli A, Facchi G, Pezzotti P, Angarano G, Arici C, Narciso P, Orani A, Raise E, Scalzini A, Poggio A, Ippolito G, Moroni M, Monforte AD, Montroni M, Scalise G, Costantini A, Del Prete MS, Tirelli U, Nasti G, Pastore G, Perulli LM, Suter F, Arici C, Chiodo F, Gritti FM, Colangeli V, Fiorini C, Guerra L, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Cosco L, Pizzigallo E, Ricci F, Vigevani GM, Pusterla L, Carnevale G, Pan A, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Ambu S, Lo Caputo S, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti, Soscia F, Tacconi L, Orani A, Castaldo G, Scasso A, Vincenti A, Scalzini A, Alessi F, Moroni M, Lazzarin A, Cargnel A, Milazzo F, Caggese L, Monforte AD, Melzi S, Delfanti F, Carini B, Adriani B, Garavaglia S, Moioli C, Esposito R, Mussini C, Abrescia N, Chirianni A, Perrella O, Piazza M, De Marco M, Montesarchio V, Manzillo E, Nappa S, Cadrobbi P, Scaggiante R, Colomba A, Abbadesse V, Prestileo T, Mancuso S, Filice G, Minoli L, Savino FAP, Maserati R, Pauluzzi S, Baldelli F, Petrelli E, Ciotti A, Alberici F, Sisti M, Menichetti F, Smorfa A, De Stefano C, La Gala A, Zauli T, Ballardini G, Bonazzi L, Ursitti MA, Ciammarughi R, Giordani S, Ortona L, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Del Forno A, Zaccarelli M, De Longis P, Ciardi M, D'Offizi G, Palmieri F, Lichter M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Quaglia S, Sciandra M, Salassa B, Torre D, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Lepri AC, Phillips AN. Impact of Mutations Conferring Reduced Susceptibility to Lamivudine on the Response to Antiretroviral Therapy. Antivir Ther 2001. [DOI: 10.1177/135965350100600306] [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: 11/17/2022]
Affiliation(s)
- Carlo Federico Perno
- IRCCS L. Spallanzani, Rome, Italy
- Department Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Claudia Balotta
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | - Michela Violin
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | - Guido Facchi
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
| | | | | | - Claudio Arici
- Department of Infectious Diseases, Ospedali Riuniti, Bergamo, Italy
| | | | - Anna Orani
- Department of Infectious Diseases, Lecco Hospital, Lecco, Italy
| | - Enzo Raise
- Department of Infectious Diseases, SS Giovanni e Paolo Hospital, Venice, Italy
| | - Alfredo Scalzini
- Department of Infectious Diseases, Mantova Hospital, Mantova, Italy
| | - Antonio Poggio
- Department of Infectious Diseases, Verbania Hospital, Verbania, Italy
| | | | - Mauro Moroni
- Institute of Tropical and Infectious Diseases, University of Milan, Milan, Italy
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Abstract
Treatment of [(Ti(eta5-C5Me5)(mu-NH))3(mu3-N)] with alkali metal bis(trimethylsilyl)amido reagents in toluene afforded the complexes [M(mu3-N)(mu3-NH)2[Ti3(mu5-C5Me5)3(mu3-N)]]2 (M = Li (2), Na, (3), K (4)). The molecular structures of 2 and 3 have been determined by X-ray crystallographic studies and show two azaheterometallocubane cores [MTi3N4] linked by metal-nitrogen bonds. Reaction of the lithium derivative 2 with chlorotrimethylsilane or trimethyltin chloride in toluene gave the incomplete cube nitrido complexes [Ti3(eta5-C5Me5)3(mu-NH)2(mu-NMMe3)(mu3-N)] (M = Si (5), Sn (6)). A similar reaction with indium(I) or thallium(I) chlorides yielded cube-type derivatives [M(mu3-N)(mu3-NH)2[Ti(eta5-C5Me5)3(mu3-N)] (M=In (7), Tl (8)).
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Affiliation(s)
- M García-Castro
- Departamento de Química Inorgánica, Universidad de Alcalá, Alcalá de Henares-Madrid, Spain
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Mena M, Navarrete P, Corvalán S, Bedregal P. [Fetal drug addiction as a consequence of maternal cocaine free base abuse during pregnancy]. Rev Med Chil 2000; 128:1093-100. [PMID: 11349507] [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: 04/16/2023]
Abstract
BACKGROUND Fetal drug addiction is a serious public health problem. In the United States 10 to 15% of children have been exposed "in utero" to cocaine. In a Chilean public health service, more than 200 offspring of cocaine free base abuser have been detected. AIM To analyze the clinical and social features of 100 children exposed to cocaine free base during fetal development. PATIENTS AND METHODS Clinical features of children born from cocaine free base consume mothers were described at birth. During subsequent follow up, growth and development, disease episodes, developmental alterations and social situation were recorded. Data was compared with other newborns from the same health service. RESULTS Compared to their normal counterparts, exposed children has a lower birth weight, the frequency of premature babies was thrice higher, and small-for-gestational age children were four times more common. There was also a higher prevalence of cardiac malformations, seizures and apnea. Hospital admissions were more frequent, prolonged and required more complex facilities. During follow up, undernutrition and stunting were more prevalent. Psychomotor retardation was present in 67% of children and behavioral disturbances in 93%. Most of these children are governmental protection. CONCLUSIONS Strategies to prevent drug abuse during pregnancy and its devastating medical and social consequences should be urgently developed (Rev Méd Chile 2000; 128: 1093-1100).
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Affiliation(s)
- M Mena
- Servicio de Pediatría, DPG y Unidad de Informática Maternidad, Hospital Dr. Sótero del Río
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Boldorini R, Zorini EO, Viganò P, Nebuloni M, Mena M, Monga G. Cytologic and biomolecular diagnosis of polyomavirus infection in urine specimens of HIV-positive patients. Acta Cytol 2000; 44:205-10. [PMID: 10740607 DOI: 10.1159/000326361] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 11/19/2022]
Abstract
OBJECTIVE To evaluate the frequency of human polyomavirus reactivation in urine specimens from HIV-positive patients; compare the sensitivity of cytology, immunohistochemistry and molecular biology; differentiate viral genotypes; and correlate the results with urinary cytologic abnormalities. STUDY DESIGN Urine specimens from 78 unselected HIV-positive patients were evaluated by means of cytology, immunohistochemistry and nested polymerase chain reaction (n-PCR) to evaluate the presence of polyomaviruses. Restriction fragment length polymorphism (RFLP) was carried out in positive cases in order to differentiate BK virus (BKV) from JC virus (JCV). CD4 cells and serum creatinine levels were evaluated as indices of immune status and renal function, respectively, whereas the presence of red blood cells was used as an index of urogenital damage. RESULTS Cytologic evidence of polyomavirus infection was found in 17 samples and immunohistochemically confirmed in 9; another 6 cytologically negative cases were detected by means of immunohistochemistry. In all cases, only one or two cells showed typical viral inclusions or positive staining. n-PCR identified 44 positive samples, thus confirming all of the cytologically and immunohistochemically positive cases and detecting polyomavirus genome in a further 21. RFLP detected 39 JCV, 1 BKV and 4 JCV-BKV infections. No correlation was found between the presence or type of polyomavirus and immune status, but red blood cells were found more frequently in the positive than in the negative samples. Serum creatinine levels fell within the normal range in all cases. CONCLUSION Molecular biology is the most sensitive tool for detecting polyomavirus urinary infection in HIV-positive patients and the only reliable method of differentiating JCV and BKV viral genotypes.
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Affiliation(s)
- R Boldorini
- Dipartimento di Scienze Mediche, Facoltà di Medicina e Chirurgia, Università del Piemonte Orientale Amedeo Avogadro, Novara, Italy
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Abarca A, Gómez-Sal P, Martín A, Mena M, Poblet JM, Yélamos C. Ammonolysis of mono(pentamethylcyclopentadienyl) titanium(IV) derivatives. Inorg Chem 2000; 39:642-51. [PMID: 11272557 DOI: 10.1021/ic9907718] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.0] [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
Ammonolyses of mono(pentamethylcyclopentadienyl) titanium(IV) derivatives [Ti(eta5-C5Me5)X3] (X = NMe2, Me, Cl) have been carried out in solution to give polynuclear nitrido complexes. Reaction of the tris(dimethylamido) derivative [Ti(eta5-C5Me5)(NMe2)3] with excess of ammonia at 80-100 degrees C gives the cubane complex [[Ti(eta5-C5Me5)]4(mu3-N)4] (1). Treatment of the trimethyl derivative [Ti(eta5-C5Me5)Me3] with NH3 at room temperature leads to the trinuclear imido-nitrido complex [[Ti(eta/5-CsMes)(mu-NH)]3(mu3-N)] (2) via the intermediate [[Ti(eta5-C5Me5)Me]2(mu-NH)2] (3). The analogous reaction of [Ti(eta5-C5Me5)Me3] with 2,4,6-trimethylaniline (ArNH2) gives the dinuclear imido complex [[Ti(eta5-C5Me5)Me])2(mu-NAr)2] (4) which reacts with ammonia to afford [[Ti(eta5-C5Me5)(NH2)]2(mu-NAr)2] (5). Complex 2 has been used, by treatments with the tris(dimethylamido) derivatives [Ti(eta5-C5H5-nRn)(NMe2)3], as precursor of the cubane nitrido systems [[Ti4(eta5-C5Me5)3(eta5-C5H5-nRn)](mu3-N)4] [R = Me n = 5 (1), R = H n = 0 (6), R = SiMe3 n = 1 (7), R = Me n = 1 (8)] via dimethylamine elimination. Reaction of [Ti(eta5-C5Me5)Cl3] or [Ti(eta5-C5Me5)(NMe2)Cl2] with excess of ammonia at room temperature gives the dinuclear complex [[Ti2(eta5-C5Me5)2Cl3(NH3)](mu-N)] (9) where an intramolecular hydrogen bonding and a nonlineal nitrido ligand bridge the "Ti(eta5-C5Me5)Cl(NH3)" and "Ti(eta5-C5Me5)Cl2" moieties. The molecular structures of [[Ti(eta5-C5Me5)Me]2 (mu-NAr)2] (4) and [[Ti2(eta5-C5Me5)2Cl3(NH3)](mu-N)] (9) have been determined by X-ray crystallographic studies. Density functional theory calculations also have been conducted on complex 9 to confirm the existence of an intramolecular N-H...Cl hydrogen bond and to evaluate different aspects of its molecular disposition.
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Affiliation(s)
- A Abarca
- Departamento de Química Inorgánica, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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Abstract
Incorporation of M(CO)(3) fragments by trinuclear Ti complexes [{Ti(3)Cp<![IGNORE[$\curr {\brol{{\stern}}{3}}$]]>(µ(3)-CR)}(µ-O)(3)] and [{Ti(3)Cp<![IGNORE[$\curr {\brol{{\stern}}{3}}$]]>(µ(3)-N)}(µ-NH)(3)] (Cp*=eta(5)-C(5)Me(5)) leads to the formation of an unprecedented class of heterometallic clusters with cubane structure [e.g., Eq. (a)]. Density functional calculations on these complexes indicate the existence of electron delocalization in the Ti(3)M cores (M=Cr, Mo, W).
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Affiliation(s)
- A Abarca
- Departamento de Química Inorgánica Universidad de Alcalá, Campus Universitario 28871 Alcalá de Henares-Madrid (Spain)
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Mena M, Vicente-Carbajosa J, Schmidt RJ, Carbonero P. An endosperm-specific DOF protein from barley, highly conserved in wheat, binds to and activates transcription from the prolamin-box of a native B-hordein promoter in barley endosperm. Plant J 1998; 16:53-62. [PMID: 9807827 DOI: 10.1046/j.1365-313x.1998.00275.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A cDNA encoding a DNA-binding protein of the DOF class of transcription factors was isolated from a barley endosperm library. The deduced amino acid sequence for the corresponding protein is 94% identical through the DOF domain to the prolamin-box (P-box) binding factor PBF from maize. The gene encoding the barley PBF (BPBF) maps to chromosome 7H, and its expression is restricted to the endosperm where it precedes that of the hordein genes. The BPBF expressed in bacteria as a GST-fusion binds a P-box 5'-TGTAAAG-3' containing oligonucleotide derived from the promoter region of an Hor2 gene. Binding was prevented when the P-box motif was mutated to 5'-TGTAgAc-3'. A P-box binding activity, present in barley and wheat endosperm nuclei, interacted similarly to BPBF with this synthetic oligonucleotide, and the binding was abolished by 1,10-phenanthroline. Transient expression experiments in developing barley endosperms demonstrate that BPBF transactivates transcription from the P-box element of a native Hor2 promoter and that direct binding of BPBF to its target site is essential for transactivation since mutations in the DOF DNA-binding domain or in the P-box motif of this promoter abolished both binding and transactivation. Evidence was also obtained for the presence in wheat of a Pbf homologue having similar DNA-binding properties to that of BPBF. These results strongly implicate this endosperm-specific DOF protein from barley as an important activator of hordein gene expression and suggest the evolutionary conservation of the Pbf gene function among small grain cereals.
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Affiliation(s)
- M Mena
- Laboratorio de Bioquímica y Biología Molecular, Departamento Biotecnología-UPM, Madrid, Spain
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Molina A, Mena M, Carbonero P, García-Olmedo F. Differential expression of pathogen-responsive genes encoding two types of glycine-rich proteins in barley. Plant Mol Biol 1997; 33:803-810. [PMID: 9106504 DOI: 10.1023/a:1005712803130] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Gene-specific probes (3' ends of cDNAs) were obtained from barley cDNAs encoding two types of glycine-rich proteins: HvGRP2, characterized by a cytokeratin-like and a cysteine-rich domain, and HvGRP3, whose main feature was an RNA-binding domain. Expression of genes Hvgrp2 and Hvgrp3, which are present at one (or two) copies per haploid genome, was ubiquitous and gene Hvgrp3 was under light/darkness modulation. Cold treatment increased Hvgrp2 and Hvgrp3 mRNA levels. Methyl jasmonate (10 microM) switched off the two genes. Expression of Hvgrp2, but not that of Hvgrp3, was induced by ethylene treatment (100 ppm). Fungal pathogens Erysiphe graminis and Rhynchosporium secalis increased the mRNAs levels of the two genes, both in compatible and in incompatible interactions, while bacterial pathogens did not.
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Affiliation(s)
- A Molina
- Departamento de Biotecnología - UPM, E.T.S. Ingeniéros Agrónomos, Madrid, Spain
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Segovia N, Mena M, Monnin M, Peña P, Salazar S, Seidel J, Tamez E. Fluctuations of groundwater radon and chemical species in basaltic aquifers. RADIAT MEAS 1997. [DOI: 10.1016/s1350-4487(97)00176-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
The Arabidopsis gene AGAMOUS is required for male and female reproductive organ development and for floral determinacy. Reverse genetics allowed the isolation of a transposon-induced mutation in ZAG1, the maize homolog of AGAMOUS. ZAG1 mutants exhibited a loss of determinacy, but the identity of reproductive organs was largely unaffected. This suggested a redundancy in maize sex organ specification that led to the identification and cloning of a second AGAMOUS homolog, ZMM2, that has a pattern of expression distinct from that of ZAG1. C-function organ identity in maize (as defined by the A, B, C model of floral organ development) may therefore be orchestrated by two closely related genes, ZAG1 and ZMM2, with overlapping but nonidentical activities.
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Affiliation(s)
- M Mena
- Department of Biology and Center for Molecular Genetics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
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