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Becerril A, Pérez-Victoria I, Martín JM, Reyes F, Salas JA, Méndez C. Biosynthesis of Largimycins in Streptomyces argillaceus Involves Transient β-Alkylation and Cryptic Halogenation Steps Unprecedented in the Leinamycin Family. ACS Chem Biol 2022; 17:2320-2331. [PMID: 35830174 PMCID: PMC9396626 DOI: 10.1021/acschembio.2c00416] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Largimycins A1 and A2 are key members of a recently identified
family of hybrid nonribosomal peptide polyketides belonging to the
scarcely represented group of antitumor leinamycins. They are encoded
by the gene cluster lrg of Streptomyces argillaceus. This cluster contains a halogenase gene and two sets of genes for
the biosynthesis and incorporation of β branches at C3 and C9.
Noticeably, largimycins A1 and A2 are nonhalogenated compounds and
only contain a β branch at C3. By generating mutants in those
genes and characterizing chemically their accumulated compounds, we
could confirm the existence of a chlorination step at C19, the introduction
of an acetyl-derived olefinic exomethylene group at C9, and a propionyl-derived
β branch at C3 in the biosynthesis pathway. Since the olefinic
exomethylene group and the chlorine atom are absent in the final products,
those biosynthetic steps can be considered cryptic in the overall
pathway but essential to generating keto and epoxide functionalities
at C9 and C18/C19, respectively. We propose that chlorination at C19
is utilized as an activation strategy that creates the precursor halohydrin
to finally yield the epoxy functionality at C18/C19. This represents
a novel strategy to create such functionalities and extends the small
number of natural product biosynthetic pathways that include a cryptic
chlorination step.
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Affiliation(s)
- Adriana Becerril
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain.,Instituto de Investigación Sanitaria de Asturias (ISPA), 33011 Oviedo, Spain
| | - Ignacio Pérez-Victoria
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, 18016 Granada, Spain
| | - Jesús M Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, 18016 Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Armilla, 18016 Granada, Spain
| | - Jose A Salas
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain.,Instituto de Investigación Sanitaria de Asturias (ISPA), 33011 Oviedo, Spain
| | - Carmen Méndez
- Departamento de Biología Funcional e Instituto Universitario de Oncología del Principado de Asturias (I.U.O.P.A), Universidad de Oviedo, 33006 Oviedo, Spain.,Instituto de Investigación Sanitaria de Asturias (ISPA), 33011 Oviedo, Spain
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2
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Guillen-Climent S, Fernández García L, García-Vázquez A, Martín JM. Hereditary Epidermolysis Bullosa: A Case Series. Actas Dermosifiliogr (Engl Ed) 2021; 112:S0001-7310(21)00165-4. [PMID: 33939986 DOI: 10.1016/j.ad.2020.08.015] [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: 05/15/2020] [Revised: 07/14/2020] [Accepted: 08/24/2020] [Indexed: 10/21/2022] Open
Affiliation(s)
- S Guillen-Climent
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España.
| | | | - A García-Vázquez
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España
| | - J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España; Departamento de Medicina, Facultad de Medicina, Universidad de Valencia, Valencia, España
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3
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Silva E, Estébanez A, Martín JM, Monteagudo C, Montesinos E. Keratoacanthoma Centrifugum Marginatum (KCM) after photodynamic therapy with good response to oral retinoids and topical 5‐fluorouracil. Dermatol Ther 2019; 32:e12988. [DOI: 10.1111/dth.12988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 06/04/2019] [Indexed: 11/27/2022]
Affiliation(s)
- E Silva
- Department of DermatologyClinical University Hospital of Valencia Valencia Spain
| | - A Estébanez
- Department of DermatologyClinical University Hospital of Valencia Valencia Spain
| | - JM Martín
- Department of DermatologyClinical University Hospital of Valencia Valencia Spain
| | - C Monteagudo
- Department of PathologyClinical University Hospital of Valencia Valencia Spain
| | - E Montesinos
- Department of DermatologyClinical University Hospital of Valencia Valencia Spain
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4
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Estébanez A, Silva E, Cordero P, Martín JM. Heparin-Induced Skin Necrosis Occurring at a Distance From Injection Sites. Actas Dermosifiliogr (Engl Ed) 2019; 110:869-871. [PMID: 31151665 DOI: 10.1016/j.ad.2018.03.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/20/2018] [Accepted: 03/27/2018] [Indexed: 11/24/2022] Open
Affiliation(s)
- A Estébanez
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España.
| | - E Silva
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España
| | - P Cordero
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España
| | - J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España
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5
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Santos JD, Vitorino I, De la Cruz M, Díaz C, Cautain B, Annang F, Pérez-Moreno G, Gonzalez Martinez I, Tormo JR, Martín JM, Urbatzka R, Vicente FM, Lage OM. Bioactivities and Extract Dereplication of Actinomycetales Isolated From Marine Sponges. Front Microbiol 2019; 10:727. [PMID: 31024503 PMCID: PMC6467163 DOI: 10.3389/fmicb.2019.00727] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 03/22/2019] [Indexed: 12/15/2022] Open
Abstract
In the beginning of the twenty-first century, humanity faces great challenges regarding diseases and health-related quality of life. A drastic rise in bacterial antibiotic resistance, in the number of cancer patients, in the obesity epidemics and in chronic diseases due to life expectation extension are some of these challenges. The discovery of novel therapeutics is fundamental and it may come from underexplored environments, like marine habitats, and microbial origin. Actinobacteria are well-known as treasure chests for the discovery of novel natural compounds. In this study, eighteen Actinomycetales isolated from marine sponges of three Erylus genera collected in Portuguese waters were tested for bioactivities with the main goal of isolating and characterizing the responsible bioactive metabolites. The screening comprehended antimicrobial, anti-fungal, anti-parasitic, anti-cancer and anti-obesity properties. Fermentations of the selected strains were prepared using ten different culturing media. Several bioactivities against the fungus Aspergillus fumigatus, the bacteria Staphylococcus aureus methicillin-resistant (MRSA) and the human liver cancer cell line HepG2 were obtained in small volume cultures. Screening in higher volumes showed consistent anti-fungal activity by strain Dermacoccus sp. #91-17 and Micrococcus luteus Berg02-26. Gordonia sp. Berg02-22.2 showed anti-parasitic (Trypanosoma cruzi) and anti-cancer activity against several cell lines (melanoma A2058, liver HepG2, colon HT29, breast MCF7 and pancreatic MiaPaca). For the anti-obesity assay, Microbacterium foliorum #91-29 and #91-40 induced lipid reduction on the larvae of zebrafish (Danio rerio). Dereplication of the extracts from several bacteria showed the existence of a variety of secondary metabolites, with some undiscovered molecules. This work showed that Actinomycetales are indeed good candidates for drug discovery.
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Affiliation(s)
- José D Santos
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Inês Vitorino
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Mercedes De la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Caridad Díaz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Frederick Annang
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Guiomar Pérez-Moreno
- Instituto de Parasitología y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Ignacio Gonzalez Martinez
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Jose R Tormo
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Jesús M Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Ralph Urbatzka
- Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Francisca M Vicente
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Olga M Lage
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.,Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
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6
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Velasco R, Cordero P, Andrade V, Martín JM, Smith V, Ramón MD, Monteagudo C. Painful papule on the right arm of a woman. Clin Exp Dermatol 2018; 44:661-663. [PMID: 30362141 DOI: 10.1111/ced.13816] [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] [Accepted: 07/24/2018] [Indexed: 11/29/2022]
Affiliation(s)
- R Velasco
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - P Cordero
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - V Andrade
- Department of Pathology, Clinical University Hospital of Valencia, Valencia, Spain
| | - J M Martín
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - V Smith
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - M D Ramón
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - C Monteagudo
- Department of Pathology, Clinical University Hospital of Valencia, Valencia, Spain
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7
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González-Delgado VA, Cordero-Romero P, Martín JM. Giant Nevus Lipomatosus Cutaneous Superficialis. Actas Dermosifiliogr (Engl Ed) 2018; 110:e1. [PMID: 30360883 DOI: 10.1016/j.ad.2017.12.020] [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: 09/28/2017] [Revised: 11/14/2017] [Accepted: 12/03/2017] [Indexed: 11/25/2022] Open
Affiliation(s)
- V A González-Delgado
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Valencia, España.
| | - P Cordero-Romero
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Valencia, España
| | - J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Valencia, España
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8
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Álvarez-Ossorio MJ, Sarmento E Castro R, Granados R, Macías J, Morano-Amado LE, Ríos MJ, Merino D, Álvarez EN, Collado A, Pérez-Pérez M, Téllez F, Martín JM, Méndez J, Pineda JA, Neukam K. Impact of interferon-free regimens on the glomerular filtration rate during treatment of chronic hepatitis C in a real-life cohort. J Viral Hepat 2018; 25:699-706. [PMID: 29377515 DOI: 10.1111/jvh.12867] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 12/20/2017] [Indexed: 01/09/2023]
Abstract
Little data are available on renal toxicity exerted by direct-acting antivirals (DAAs) in real life. The aim of this study was to assess the impact of direct-acting antivirals against hepatitis C virus infection currently used in Spain and Portugal on the estimated glomerular filtration rate (eGFR) in clinical practise. From an international, prospective multicohort study, patients treated with DAAs for at least 12 weeks and with eGFR ≥30 mL/min per 1.73 m2 at baseline were selected. eGFR was determined using the CKD-EPI formula. A total of 1131 patients were included; 658 (58%) were HIV/HCV-coinfected patients. Among the 901 patients treated for 12 weeks, median (interquartile range) eGFR was 100 (87-107) at baseline vs 97 (85-105) mL/min per 1.73 m2 at week 12 of follow-up (FU12) post-treatment (P < .001). For HIV-coinfected subjects who received tenofovir plus a ritonavir-boosted HIV protease inhibitor (PI/r), baseline vs FU12 eGFR were 104 (86-109) vs 104 (91-110) mL/min per 1.73 m2 (P = .913). Among subjects receiving ombitasvir/paritaprevir with or without dasabuvir, eGFR did not show any significant change. Of 1100 subjects with eGFR >60 mL/min per 1.73 m2 at baseline, 22 (2%) had eGFR <60 mL/min per 1.73 m2 at FU12, but none presented with eGFR <30 mL/min per 1.73 m2 . In conclusion, eGFR slightly declines during therapy with all-oral DAAs and this effect persists up to 12 weeks after stopping treatment in subjects with normal to moderately impaired renal function, regardless of HIV status. Concomitant use of tenofovir plus PI/r does not seem to have an impact on eGFR.
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Affiliation(s)
- M J Álvarez-Ossorio
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain
| | | | - R Granados
- Unit of Infectious Diseases, Hospital Universitario de Gran Canaria Dr Negrín, Las Palmas de Gran Canaria, Spain
| | - J Macías
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain
| | - L E Morano-Amado
- Unit of Infectious Pathology, Hospital Universitario Alvaro Cunqueiro, Vigo, Spain
| | - M J Ríos
- Unit of Infectious Diseases, Hospital Universitario Virgen Macarena, Seville, Spain
| | - D Merino
- Unit of Infectious Diseases, Complejo Hospitalario Universitario de Huelva, Huelva, Spain
| | - E N Álvarez
- Infectious Diseases Unit, Hospital Universitario Virgen de la Victoria, Malaga, Spain
| | - A Collado
- Infectious Diseases Unit, Hospital Universitario Torrecárdenas, Almeria, Spain
| | - M Pérez-Pérez
- Unit of Infectious Diseases, Hospital La Línea, AGS Campo de Gibraltar, Cadiz, Spain
| | - F Téllez
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Puerto Real, Instituto de Investigación e Innovación en Ciencias Biomédicas de la Provincia de Cádiz (INiBICA), Puerto Real, Spain
| | - J M Martín
- Unit of Infectious Diseases, Hospital Universitario de Gran Canaria Dr Negrín, Las Palmas de Gran Canaria, Spain
| | - J Méndez
- Unit of Infectious Diseases, Centro Hospitalar do Porto, Porto, Portugal
| | - J A Pineda
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain
| | - K Neukam
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain.,Instituto de Biomedicina de Sevilla (IBiS), Seville, Spain
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9
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Escandell I, Martín JM, Jordá E. Novel Immunologic Approaches to Melanoma Treatment. Actas Dermosifiliogr 2017; 108:708-720. [PMID: 28527857 DOI: 10.1016/j.ad.2017.01.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 05/18/2016] [Revised: 01/15/2017] [Accepted: 01/31/2017] [Indexed: 01/06/2023] Open
Abstract
Approaches to treating melanoma have changed radically since the introduction of immunotherapy, and survival figures are now higher than possible with earlier therapies. The immunomodulators currently available mainly block CTLA-4 (cytotoxicT lymphocyte-associated molecule-4) and PD-1 (programed cell death protein 1) translocated to the cell surface, where they inhibit the antitumor immune response. Treatments blocking these molecules are being more widely used. Research now seeks new molecular targets, the best combinations of available drugs, and biomarkers that can identify ideal candidates for each one.
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Affiliation(s)
- I Escandell
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Universidad de Valencia, Valencia, España.
| | - J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Universidad de Valencia, Valencia, España
| | - E Jordá
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Universidad de Valencia, Valencia, España
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10
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Martín JM, Mateo E, Jordá E. Azithromycin for the Treatment of Ciclosporin-Induced Gingival Hyperplasia. Actas Dermosifiliogr 2016; 107:780. [PMID: 26996332 DOI: 10.1016/j.ad.2015.04.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 04/16/2015] [Accepted: 04/20/2015] [Indexed: 11/24/2022] Open
Affiliation(s)
- J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España; Departamento de Medicina, Universidad de Valencia, Valencia, España.
| | - E Mateo
- Servicio de Medicina Interna, Hospital Universitario Dr. Peset, Valencia, España
| | - E Jordá
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España; Departamento de Medicina, Universidad de Valencia, Valencia, España
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11
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Pescador D, Rendón D, Blanco J, González R, Martín JM, Cano-Gala C, Pescador D. [O-arm navigation in spinal surgery for complex cases]. Acta Ortop Mex 2016; 30:100-104. [PMID: 27846359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The intraoperative computer-assisted navigation technique has evolved and changed the way we approach certain complex cases in the vertebral pathologies. The main advantages of this technique are that it increases the accuracy of the procedure, reduces its morbidity and invasiveness, diminishes the radiation dose and improves surgical protocols. In addition to the transpedicular fixation, the navigation system is useful in a high variety of pathologies such as spinal decompression or tumor resection. In the present study, we show several cases where navigation is used intraoperatively in different pathologies and their clinical outcomes.
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Affiliation(s)
- D Pescador
- Hospital Universitario de Salamanca, España
| | - D Rendón
- Hospital Universitario de Salamanca, España
| | - J Blanco
- Hospital Universitario de Salamanca, España
| | - R González
- Hospital Universitario de Salamanca, España
| | - J M Martín
- Hospital Universitario de Salamanca, España
| | | | - D Pescador
- Facultad de Ingeniería. Universidad de Salamanca, España
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12
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Martínez-Uña A, Martín JM, Fernández-Quintanilla C, Dorado J. Provisioning floral resources to attract aphidophagous hoverflies (Diptera: Syrphidae) useful for pest management in central Spain. J Econ Entomol 2013; 106:2327-2335. [PMID: 24498730 DOI: 10.1603/ec13180] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Noncrop plant communities present on the boundaries or within crop fields are essential for the maintenance of functional biodiversity, affecting beneficial insect numbers and ecological fitness. Habitat manipulation is an increasingly studied strategy aimed at enhancing natural enemies of agricultural pests by providing feeding and shelter resources. In this study, six plant species selected from preliminary work were tested for their potential attractiveness to four common aphidophagous hoverflies species. Potential attractiveness was evaluated through observation of hoverfly feeding visits to replicated flower plots distributed in a randomized design. The combination of the selected species covered a 2-mo full-bloom period. Sphaerophoria scripta L. and Sphaerophoria rueppellii (Wiedeman) were the dominant hoverflies present throughout the sampling period, whereas Eupeodes corollae (F.) and Episyrphus balteatus (DeGeer) visits were less abundant and appeared only in the early season. Potential attractiveness varied among plant species. Calendula arvensis L. and Coriandrum sativum L. were the most visited species. C. arvensis received a high number of visits throughout a long period, whereas the visits to Co. sativum were concentrated in a short blooming period. These results suggest that habitat management by using these plant species may increase the abundance of hoverflies and could improve the biological control of aphid pests typical of spring-summer crops in open Mediterranean environments.
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Affiliation(s)
- A Martínez-Uña
- CSIC-Instituto de Ciencias Agrarias, Serrano 115 B, 28006 Madrid, Spain
| | - J M Martín
- CSIC-Instituto de Ciencias Agrarias, Serrano 115 B, 28006 Madrid, Spain
| | | | - J Dorado
- CSIC-Instituto de Ciencias Agrarias, Serrano 115 B, 28006 Madrid, Spain
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13
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Martín JM, Jordá E, Monteagudo C. Florid fibroplasia in melanocytic lesions. A retrospective study. J Eur Acad Dermatol Venereol 2013; 28:522-4. [PMID: 23848252 DOI: 10.1111/jdv.12220] [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: 11/27/2022]
Affiliation(s)
- J M Martín
- Department of Dermatology, Hospital Clínico Universitario, Valencia, Spain
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14
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Martín JM, Rubio M, Bella R, Jordá E, Monteagudo C. [Complete regression of melanocytic nevi: correlation between clinical, dermoscopic, and histopathologic findings in 13 patients]. Actas Dermosifiliogr 2012; 103:401-10. [PMID: 22285047 DOI: 10.1016/j.ad.2011.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 11/07/2011] [Accepted: 11/21/2011] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The complete regression of melanocytic tumors, confirmed by histology, has rarely been reported in the literature. It is very difficult to determine the malignant or benign nature of a regressed tumor, and on occasions, the only indication of malignancy is the subsequent development of metastasis. MATERIAL AND METHODS We performed a descriptive study of melanocytic nevi that had undergone complete, histologically confirmed regression prior to excision in the dermatology department of our hospital over a period of 3 years. We included only lesions in which dermoscopy performed prior to regression showed features that suggested benignity. We assessed various clinical, dermoscopic, histologic, and immunohistochemical features. RESULTS The mean time to complete regression was 6.4 months. The main dermoscopic patterns observed were reticular and mixed reticular/globular. Unlike what is generally seen in melanomas, the main histologic finding was the presence of fine or lamellar fibrosis. In all cases, there was a predominance of CD8+ T cells. CONCLUSIONS The clinical, dermoscopic, and histologic features of the melanocytic nevi studied suggest the existence of a highly characteristic form of tumor regression characterized by very rapid regression and the involvement of a cytotoxic mechanism.
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Affiliation(s)
- J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, Spain.
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15
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Baudet JS, Martín JM, Sánchez del Río A, Aguirre-Jaime A. Occupational risk prevention in endoscopy units: a pending issue. Rev Esp Enferm Dig 2011; 103:83-8. [PMID: 21366369 DOI: 10.4321/s1130-01082011000200006] [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] [Indexed: 11/11/2022]
Abstract
UNLABELLED The degree of Knower and compliance with occupational risk prevention measures in the Spanish gastrointestinal endoscopy units is unknown. AIM 1. To assess compliance with occupational risk prevention measures in GIE units. 2. To determine which factors influence the fulfillment of occupational risk prevention measures. METHODS a validated survey was supplied to 300 GIE units, including questions on: 1. General occupational risk prevention measures; 2. occupational risk prevention measures during disinfection; 3. occupational risk prevention measures during examination. The following Hospital or GIE Unit characteristics were evaluated: Type of hospital according to the Spanish National Health Service; Number of hospital beds; Advanced diagnostic and therapeutic procedures performed and; Centers providing training in the field of endoscopy. RESULTS response: 196 GIE units (65%). 104 GIE units (53% CI95%: 46-60) fulfill less than 50% of the occupational risk prevention measures studied.The RR of less than 50% of the ORP measures being fulfilled is 1.975 times higher at public hospitals than at private facilities (CI95%: 1.11-3.52). None of the remaining factors analyzed proved to have a significant influence. CONCLUSIONS compliance with occupational risk prevention measures in Spanish GIE units is inadequate and must be improved. Public hospitals in Spain comply with fewer occupational risk prevention measures than their private counterparts.
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Affiliation(s)
- J S Baudet
- Digestive Service, Hospital San Juan de Dios, Santa Cruz de Tenerife, Spain.
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Martín JM, Pellicer Z, Bella R, Jordá E. [Rosacea triggered by a vitamin B complex supplement]. Actas Dermosifiliogr 2011; 102:223-4. [PMID: 21296310 DOI: 10.1016/j.ad.2010.06.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Revised: 05/04/2010] [Accepted: 06/14/2010] [Indexed: 11/18/2022] Open
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López V, Martín JM, Monteagudo C, Jordá E. [Epidemiology of pediatric dermatologic surgery: a retrospective study of 996 children]. Actas Dermosifiliogr 2010; 101:771-777. [PMID: 21034707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
OBJECTIVE To describe the epidemiology of skin surgery performed in the dermatology department of Hospital Clínico Universitario in Valencia, Spain, on children up to 16 years of age. The study analyzed a 9-year period. MATERIALS AND METHOD A retrospective review was performed of all tissue excisions and biopsies taken between January 1, 1990, and December 31, 2007, from patients up to 16 years of age seen in the dermatology department of Hospital Clínico Universitario. The following data were collected: age, sex, surgical site, and histopathologic diagnosis. RESULTS Between 1990 and 2007, 33840 lesions were analyzed histologically; 996 of the lesions (2.94%) were from patients up to 16 years of age, of whom 502 (50.40%) were girls and 484 (49.60%) were boys. The mean age was 11.06 years. The majority (47.39%) of excisions were performed in children of 12 to 16 years. The distribution of the remainder by age groups was as follows: <1 year, 34 excisions (3.41%); >1 to <4 years, 66 (6.63%); >4 to <8 years, 154 (15.46%); and >8 to <12 years, 270 (27.11%). The most common diagnosis was melanocytic nevus (50.20%), followed by pilomatrixoma (4.62%), capillary angioma (3.61%), epidermal cyst (3.61%), Spitz nevus (3.31%), and pyogenic granuloma (3.11%). CONCLUSION Dermatologic surgery in patients up to 16 years of age accounted for a small percentage of the overall dermatologic surgery in our hospital; the majority of children were in the 12 to <16 year age group. Most children had benign lesions, with melanocytic nevus being by far the most common diagnosis. The majority of lesions were on the trunk, followed by the head and neck. In conclusion, compared with the literature reviewed, ours is the only series on dermatologic surgery in children. It is of interest because it defines the most common conditions in these patients.
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Affiliation(s)
- V López
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España.
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Martín JM, Ramos V, Terradez L, Simó R, Ricart JM, Jordá E. Progressively fading asymptomatic brownish macules. Clin Exp Dermatol 2010; 35:e182-3. [PMID: 20518909 DOI: 10.1111/j.1365-2230.2009.03634.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J M Martín
- Dermatology Department, Hospital Clinico Universitario, Valencia, Spain.
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López V, Martín JM, Jordá E. [Proliferative nodule in a congenital melanocytic nevus]. Actas Dermosifiliogr 2010; 101:102-103. [PMID: 20109406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
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20
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Martín JM, Martín JM, Ricart JM. [Erythematous-violaceous lesions on the palms]. Actas Dermosifiliogr 2009; 100:507-508. [PMID: 19709557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Affiliation(s)
- J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, Spain.
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Martín JM, Villalón G, Jordá E. [Update on the treatment of genital herpes]. Actas Dermosifiliogr 2009; 100:22-32. [PMID: 19268108 DOI: 10.1016/s1578-2190(09)70006-x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Genital herpes is a chronic infection characterized by periodic reactivation. It can produce symptomatic disease in the host although asymptomatic viral excretion can also occur. It is currently the main cause of genital ulceration and an important public health problem that has substantial clinical, psychological, and economic repercussions. This review analyzes the currently available therapeutic options and regimens, which are based mainly on systemic use of antiviral agents such as aciclovir, valacyclovir, and famciclovir. In addition, special emphasis is placed on the prevention and management of this infection in specific situations, such as pregnant, pediatric, and immunocompromised patients.
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Affiliation(s)
- J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, España.
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Horcajadas A, Román A, Olivares G, Saura E, Jorques A, Iáñez B, Pastor J, Martín JM. ["Idiopathic" syringomyelia: report of a case]. Neurocirugia (Astur) 2008; 19:556-561. [PMID: 19112549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Syringomyelia is the condition in which cavities fulfilled with CSF are found within spinal cord. Syringes are caused by obstructions of CSF pathways of different causes. If we can not find a cause responsible for the blockage, we call it "idiopathic" syringomyelia. Drainage procedures have been widely used but results, especially long-term results, are not favourable and complication rate is high. Some authors prefer to restore CSF circulation instead to drain the syrinx. Results of this treatment modality are better in literature than drainage procedures. Adequate radiological studies help to identify problem location and to plan the approach. A case of "idiopathic" syringomyelia is presented. Treatment consisted on arachnoid webs dissection and dural plastia. Clinical and radiological response was good. Literature concerned about this kind of syringomyelia and treatment modalities are reviewed.
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Affiliation(s)
- A Horcajadas
- Servicios de Neurocirugía, Hospital Virgen de las Nieves, Granada
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Abstract
Adalimumab, an anti-tumour necrosis factor agent, especially used in the treatment of rheumatoid arthritis, has a good safety profile. One of the most common side-effects of adalimumab is the development of autoantibodies. Despite the induction of autoantibodies, the clinical presentation of immune-mediated complications upon adalimumab therapy, including a lupus-like syndrome, is very rare. We have recently evaluated a new case of adalimumab-induced lupus erythematosus.
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Affiliation(s)
- JM Martín
- Department of Dermatology, Hospital Clínico Universitario, Valencia, Spain; Dermatology Unit, Hospital Quirón, Valencia, Spain,
| | - JM Ricart
- Dermatology Unit, Hospital Quirón, Valencia, Spain
| | - J Alcácer
- Department of Pathology, Hospital Quirón, Valencia, Spain
| | - N Rausell
- Department of Pathology, Hospital Quirón, Valencia, Spain
| | - G Arana
- Dermatology Unit, Hospital Quirón, Valencia, Spain
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Villalón G, Martín JM, Monteagudo C, Alonso V, Montesinos E, Jordá E. [Eruptive xanthomas after onset of diabetes mellitus]. Actas Dermosifiliogr 2008; 99:426-427. [PMID: 18501184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
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Martín JM, Ricart JM, Monteagudo C, Alcácer J, Pinazo I, Tomás L, Rausell N, Jordá E. Primary cutaneous CD30+ anaplastic large-cell lymphomas mimicking keratoacanthomas. Clin Exp Dermatol 2008; 32:668-71. [PMID: 17953637 DOI: 10.1111/j.1365-2230.2007.02477.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Primary cutaneous anaplastic large cell lymphoma (ALCL) may be associated with keratoacanthoma (KA)-like epithelial hyperplasia and dense eosinophilic and neutrophilic infiltrates. Diagnosis in such cases is challenging both clinically and histologically, because the large atypical lymphoid cells may be obscured by the massive infiltrate of eosinophils and neutrophils, or confused with invasive squamous cell carcinoma or KA. We recently encountered two cases of CD30+ ALCL presenting with a KA-like tumour on the eyelid and nose, respectively. One showed features of KA histologically, with marked tissue eosinophilia and neutrophilia.
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Affiliation(s)
- J M Martín
- Department of Dermatology, Hospital Clínico Universitario, Valencia, Spain.
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Martín JM, Jordá E, Calduch L, Monteagudo C, Pereda C, Villalón G. Self-healing generalized infantile myofibromatosis. J Eur Acad Dermatol Venereol 2007; 22:236-8. [DOI: 10.1111/j.1468-3083.2007.02292.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Necrotizing soft tissue infections constitute some of the most potentially threatening infections that may be acquired in the community or in the hospital milieu as they are associated with a high mortality rate. In most cases they are produced by Streptococcus pyogenes. We report a case of a necrotizing soft tissue infection caused by Streptococcus agalactiae (group B beta hemolytic streptococcus) that involved the leg of an elderly man with chronic lymphatic leukemia and diabetes mellitus. The lesions notably improved after initiating intravenous antibiotic treatment with amoxicillin-clavunate and clindamycin.
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Affiliation(s)
- J M Martín
- Servicio de Dermatología, Hospital Clínico Universitario, Valencia, Spain.
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Abstract
INTRODUCTION Chondroid syringoma is a rare skin tumor that presents as a slow growing, indolent lesion, that is more frequent in male adults and is usually benign. It is treated surgically and its diagnosis is histological. It can be classified as eccrine and apocrine according to its pathological characteristics. MATERIAL AND METHODS Eight cases diagnosed of chondroid syringoma in our Department in the last eight years were reevaluated clinically and histologically and the epiluminiscence microscopy was used in one of them. RESULTS Most of the cases occurred as well-defined nodular lesions, whose presumptive clinical diagnosis was adnexal or cystic pathology. All were treated surgically. The epiluminiscence microscopy showed a pattern of homogenous whitish-blue coloring. All the cases had a myxoid matrix and most also had a chondroid one. Five of the eight cases were apocrine, one of them with follicular and sebaceous differentiation. DISCUSSION The chondroid syringoma is usually a small-sized skin tumor, frequently on the head and neck. The dermatoscopy does not seem to supply any specific trait to this lesion. The microscopic examination of these lesions reveals tubuloalveolar and glandular type structures positioned as islets within a fibroadipose, chondroid, myxoid or hyaline stroma. The final treatment of these tumors is surgical. As a general rule, it is a benign tumor. Some authors have proposed the term of atypical mixed tumor of the skin for those chondroid syringomas with histological traits of malignancy but without evidence of metastasis.
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Affiliation(s)
- G Villalón
- Servicio de Dermatología, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez 17, 46010 Valencia, Spain.
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Martín JM, Nicolau MJ, Galán A, Ferrández-Izquierdo A, Ferrer AM, Jordá E. CD4+/CD56+ haematodermic neoplasm: a preculsor haematological neoplasm that frequently first presents in the skin. J Eur Acad Dermatol Venereol 2006; 20:1129-32. [PMID: 16987271 DOI: 10.1111/j.1468-3083.2006.01743.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
CD4+/CD56+ hematodermic neoplasm, formerly known as blastic NK cell lymphoma, is an aggressive and rare preculsor hematologic neoplasm recently recognized by the WHO-EORTC classification consensus for cutaneous lymphomas. The neoplasm tends to affect elderly patients, who usually present with skin lesions but often have a disseminated disease, including bone marrow involvement. Although the lesions are composed of cells with a lymphoblast-like morphology and an NK-cell phenotype, exhibiting a CD4+, CD56+ positive immunophenotype, recent studies support a relationship to plasmacytoid dendritic cells. Because of the rarity of this disease, we describe two patients suffering a CD4+/CD56+ hematodermic neoplasm.
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Affiliation(s)
- J M Martín
- Hospital Clínico Universitario, Dermatology, Valencia, Spain.
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Abstract
Cutaneous plasmacytosis is a rare disorder characterized by a benign proliferation of mature plasma cells that appears as multiple dark-brown to purplish skin lesions, often associated with polyclonal hypergammaglobulinaemia. We present the case of a 55-year-old Caucasian man who suffered from a cutaneous plasmacytosis associated with two different carcinomas. Cutaneous plasmacytosis seems to be a reactive process because most cases reported are not associated with any apparent underlying disease. Nevertheless, because few reported cases were associated with malignancies, screening of additional neoplasms would be justified.
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Affiliation(s)
- J M Martín
- Department of Dermatology, Hospital Clínico Universitario, Valencia, Spain.
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Orozco-Giménez C, Katati MJ, Vilar R, Meersmans M, Pérez-García M, Martín JM, Alcázar P, Guerrero F, Escamilla F, Mínguez A, Olivares G, Saura E, Jorques A, Arjona V. [Neuropsychological impairment in patients with intracranial aneurysms: surgical versus endovascular treatment]. Neurocirugia (Astur) 2006; 17:34-44; discussion 45. [PMID: 16565779 DOI: 10.4321/s1130-14732006000100005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To describe the neuropsychological status of patients with intracranial aneurysms and to compare the cognitive status of patients with intracranial aneurysm treated by surgical or endovascular methods. MATERIAL AND METHODS Ninety-three cases with intracranial aneurysms treated with surgery (n = 56) or embolization (n = 37) were included. A neuropsychological assessment was applied to both groups retrospectively, at least one year after treatment. RESULTS Neuropsychological impairment was found in both groups. 35.7% of the patients treated with surgery and 43.2%, of those treated with embolization did not show any cognitive impairment. Visual Memory and Cued Recall of verbal information are better in patients treated by embolization. CONCLUSIONS Our results show that a large proportion of patients with intracranial aneurysms have cognitive impairment after treatment. Endovascular management may cause less impairment in visual and verbal memory. However, bleeding may be the most important factor to explain these cognitive impairments.
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Affiliation(s)
- C Orozco-Giménez
- Departamento de Psicología, Universidad de Granada, Hospital Universitario Virgen de las Nieves, Granada, Spain
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Abstract
AIMS To evaluate the efficacy and biotolerance of the Adal-1 adhesive for muscle sealing in strabismus surgery. METHODS 27 eyes were included in the study: 17 in the control group and 10 in the study group. Surgery was performed on the recession of the horizontal rectus muscles. In the control group the muscle was joined to the sclera by a Vicryl 7/0 suture. In the study group, the Adal-1 adhesive was used instead. The efficacy of the sealing of the muscle to the sclera and the biotolerance of the surrounding tissues were evaluated. RESULTS The muscular recession in the control group was 8.17 (SD 2.38) with displacement of the sealing point of 0.02 (1.7) mm. In the group sealed with adhesive, the muscular recession was 9.09 (3.08) and the displacement was 0.15 (1.56) mm, with no significant differences between the techniques (p<0.05). The inflammation of the surrounding tissues in the immediate postoperative period was greater with the suture technique (p>0.05), but there were no differences in the other postoperative periods (Mann-Whitney U test). CONCLUSION Adal-1 was an effective and safe alternative to sutures in muscle recession for strabismus surgery in this study.
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Affiliation(s)
- M E Mulet
- Vissum-Instituto Oftalmológico de Alicante, Avenida de Denia S/N, Edficio Vissum 03016 Alicante, Spain
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Martín JM, Calduch L, Monteagudo C, Alonso V, García L, Jordá E. Clinico-pathological analysis of the cutaneous lesions of a patient with type I pseudohypoaldosteronism. J Eur Acad Dermatol Venereol 2005; 19:377-9. [PMID: 15857472 DOI: 10.1111/j.1468-3083.2004.01173.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [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: 11/27/2022]
Abstract
The autosomal recessive form of type I pseudohypoaldosteronism (PHA-I) is an unusual disorder characterized by aldosterone resistance at the target organs, which leads to an excessive loss of sodium chloride through urine, sweat and saliva, among other secretions. Such a high concentration of salt in the sweat during the depletive crises directly causes inflammation and damage in the eccrine structures, with cutaneous lesions similar to those appearing in miliaria rubra. We report an autosomal recessive PHA-I in a 4-year-old girl, with cutaneous lesions mimicking miliaria rubra, that improved after treatment with astringent solutions and avoidance of profuse sweating.
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Affiliation(s)
- J M Martín
- Department of Dermatology, Hospital Clínico Universitario de Valencia, Valencia, Spain.
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Llombart B, Monteagudo C, López-Guerrero JA, Carda C, Jorda E, Sanmartín O, Almenar S, Molina I, Martín JM, Llombart-Bosch A. Clinicopathological and immunohistochemical analysis of 20 cases of Merkel cell carcinoma in search of prognostic markers. Histopathology 2005; 46:622-34. [PMID: 15910593 DOI: 10.1111/j.1365-2559.2005.02158.x] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To evaluate the clinicopathological and immunohistochemical characteristics of Merkel cell carcinoma (MCC) in an attempt to find new, potentially significant, prognostic markers. METHODS AND RESULTS Clinical data and follow-up, histopathological features (pattern, cell size, thickness, mitoses, vascular invasion, lymphocytic infiltration) and immunohistochemical detection [CK20, thyroid transcription factor (TTF-1), chromogranin A, synaptophysin, p53, Ki67, Fli-1, CD99, c-Kit] were evaluated in 20 cases of MCC. Fli-1 and CD99 were detected in 90% and 55% of cases, respectively. Tumour size>30 mm, stage II, 'absent' lymphocytic infiltration, and the presence of>50% of Ki67+ tumour cells, were found to be prognostic indicators of disease-free interval (DFI), but only 'absent' lymphocytic infiltration constituted an independent prognostic factor of DFI after multivariate analysis. For overall survival, the same variables, together with local recurrence and lymph node involvement, had prognostic significance, with only local recurrence as an independent prognostic factor after multivariate analysis. CONCLUSIONS Absence of lymphocytic infiltration and Ki67 immunoreactivity in more than 50% of tumour cells should be evaluated in conjunction with other well-known prognostic markers in MCC. Furthermore, recognizing that Fli-1 and CD99 expression is commonly found in MCC by immunohistochemistry may avoid misinterpretation in the differential diagnosis of MCC with other small round cell tumours.
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Affiliation(s)
- B Llombart
- Department of Pathology, Instituto Valenciano de Oncología, Valencia, Spain.
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Llombart B, Garcia L, Monteagudo C, Martín JM, Alonso V, Pinazo I, Calduch L, Jordá E. Incontinentia pigmenti: a case with an unusual course. J Eur Acad Dermatol Venereol 2005; 19:394-6. [PMID: 15857484 DOI: 10.1111/j.1468-3083.2004.01141.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Martín JM, Nagore E, Cremades A, Botella-Estrada R, Sanmartín O, Sevila A, Requena C, Serra-Guillén C, Guillén C. An amalgam tattoo on the oral mucosa related to a dental prosthesis. J Eur Acad Dermatol Venereol 2005; 19:90-2. [PMID: 15649199 DOI: 10.1111/j.1468-3083.2004.01071.x] [Citation(s) in RCA: 20] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A 60-year-old woman presented with a pigmented lesion on the upper left gingival mucosa of 2 years duration. The lesion was in an area where a dental metallic prosthesis had been inserted into a nearby tooth several years earlier. A biopsy of the affected mucosa showed aggregates of pigmented granules varying in size in the dermis, extracellular matrix and within macrophages; these did not stain with melanin stains. The diagnosis was consistent with an amalgam tattoo.
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Affiliation(s)
- J M Martín
- Department of Dermatology, Hospital Clínico Universitario, Valencia, Spain
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Lobato-Salinas Z, Cambra-Lasaosa FJ, Campistol J, Toll-Costa T, Pons-Odena M, Palomeque-Rico A, Martín JM. [Factor V Leiden mutation as a cause of venous thrombosis]. Rev Neurol 2004; 38:136-9. [PMID: 14752712] [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: 04/28/2023]
Abstract
INTRODUCTION Venous thrombosis is infrequent in paediatrics. A lot of prothrombotic risk factors have been described. Disturbances of coagulation are present in more than half of children with stroke. Leiden V factor mutation is emphasized as one of the most common genetic cause of deep venous thrombosis in Caucasian children and adults, which represents 20-25%, depending on series. CASE REPORT Two years-old girl with hypoxic-ischemic disease and West syndrome, which presents a deep venous thrombosis in both legs. This evolved to gangrene, requiring surgical exceresis of scar and amputation of 2nd, 3rd and 4th fingers of left foot. She also presented a right frontoparietal intraparenchima haemorrhagic stroke with tetraventricular bleeding and hydrocephalus. It required an external ventricular derivation and later a Ventricular-peritoneal valve. CONCLUSIONS The coagulation study confirmed the Leiden V factor mutation in our patient. Later studies showed the same mutation in the father. The risk of recurrence and the severity of venous thrombosis indicate life antiaggregant treatment, currently maintained with aspirin.
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Affiliation(s)
- Z Lobato-Salinas
- Servicio de Pediatría, Unitat Integrada Hospital Sant Joan de Déu Clinic, Universidad de Barcelona, Esplugues de Llobregat, España.
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Martín JM, Katati M, López E, Bullejos JA, Arregui G, Busquier H, Mínguez A, Olivares G, Hernández V, Arjona V. Linear accelerator radiosurgery in treatment of central neurocytomas. Acta Neurochir (Wien) 2003; 145:749-54; discussion 754. [PMID: 14505100 DOI: 10.1007/s00701-003-0076-4] [Citation(s) in RCA: 23] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The purpose of this report was to review our experience with stereotactic radiosurgery in the management of patients with residual neurocytomas after initial surgery. METHODS Between October 1996 and December 2001, four patients with central neurocytoma were treated by surgery and subsequently underwent linear accelerator (LINAC) radiosurgery. RESULTS Two of the patients were cured, one exhibited a significant reduction in tumour size and the fourth remains stable. All four patients are alive and well. CONCLUSIONS In cases of small residual tumours or recurrences radiosurgery allows open surgery to be avoided and is a safe and potentially effective approach.
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Affiliation(s)
- J M Martín
- Servicio de Neurocirugía, Unidad de Radiocirugía, H. U. Virgen de las Nieves, Granada, Spain
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Abstract
Mucinous eccrine nevus has been described as a variant of eccrine nevus. Only one instance of this variant, diagnosed in a 47-year-old woman, has been reported. We report a 2-year-old girl who had two 1 cm, asymptomatic, brownish nodules. Histologic analysis revealed a dermal lobulated proliferation of eccrine structures surrounded by a prominent mucinous stroma. This is thus, to the best of our knowledge, the first case of this extremely rare entity in a child.
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Affiliation(s)
- B Llombart
- Departments of Dermatology and Pathology, Hospital Clínico Universitario, Valencia, Spain
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43
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López JS, Martínez JM, Martín A, Martín JM, Martín MJ, Scandroglio B. An exploratory multivariate approach to drug consumption patterns in young people based on primary socialization theory. Subst Use Misuse 2001; 36:1611-49. [PMID: 11758816 DOI: 10.1081/ja-100107572] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Drug consumption patterns and their psychosocial conditioning factors are explored on the basis of Primary Socialization Theory (PST), through the application of a questionnaire to a representative sample (N= 650) of the young population (age 15 to 29 years) in the Madrid Region. Cluster analysis identifies five consumption groups. Discriminant analysis, including indicators about subject's integration in primary socialization environments, beliefs about the effects of drugs, indicators of psychosocial wellbeing, and variables related to leisure time, allows 67.45% of correct consumption group prediction. Complex associations between drug use, socialization environments and psychosocial wellbeing are found, calling into question approaches establishing cumulative or unidimensional relationships between posited "risk factors" and drug consumption.
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Affiliation(s)
- J S López
- Facultad de Psicología, Universidad Autónoma de Madrid, Spain.
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Abstract
This study analyses the variables associated with the decisions made by families of potential organ donors to give or deny consent for the extraction of organs. Different indicators were recorded in 68 cases of family interview for petition of consent carried out in 13 Spanish hospitals. Those variables showing the strongest relation with family decision (donation/refusal of consent) are knowledge shown by the family about the deceased's wishes with regard to donation (p<0.001), family relationship climate (p<0.01), expression of family's satisfaction level with medical attention received (p<0.01) and number of relatives present at the consent request interview (p<0.01). Logistic regression on family decision with considered variables correctly predicted relatives' final choice in 98.4% of cases. In turn, multivariate exploratory analysis highlights a potential association between the expression of the deceased's wishes and several concurrent variables in the process (satisfaction with personal treatment and medical attention received, emotional reactions in the interviews of notification of death and consent request). It also shows that patterns of reaction and family participation in this process may vary according to the sex of the deceased relative. Results suggest that both educational efforts devoted to promoting a positive attitude toward donation in the general population and the training of health professionals involved in the generation of organs may be key factors in reducing organ shortage.
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Affiliation(s)
- J M Martinez
- Departamento de Psicologia Social y Metodologia, Facultad de Psicologia, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, Spain
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León-Carrión J, De Serdio-Arias ML, Cabezas FM, Roldán JM, Domínguez-Morales R, Martín JM, Sanchez MA. Neurobehavioural and cognitive profile of traumatic brain injury patients at risk for depression and suicide. Brain Inj 2001; 15:175-81. [PMID: 11260767 DOI: 10.1080/026990501458407] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
The possibility that patients who have suffered a traumatic brain injury will commit suicide is high, and in many cases clinicians tend to underestimate this possibility. In this study, 39 consecutive patients are studied through a Rorschach technique more than 1.5 years after their hospital discharge. The data show that 48.6% of the patients fulfil the criteria that classifies them as depressive, and, of these, 65% are at clinical risk to commit suicide (33.3% of the total of TBI patients); 25.6% have not met the criteria of depression or suicidal tendencies, and another 25.6% show very low suicide tendency scores. Only 15.6% of the total patients presented only depression without risk of suicide. The neurobehavioural and cognitive profile of the TBI suicide-prone patient shows an emotional person with cognitive difficulties in how they interpret reality, the person tries to understand what is happening around them, but is unable to cope. They show concrete thoughts, although they have difficulties solving problems and have few intellectual resources to cope with their surroundings. They do not know how to distance themselves from the emotional aspects of situations.
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Affiliation(s)
- J León-Carrión
- Department of Experimental Psychology, University of Seville, Spain.
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46
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Katati MJ, Martín JM, Massare E, Arjona V. [Melanocytic schwannoma. A case report and review of the literature]. Rev Neurol 2000; 31:427-30. [PMID: 11027093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
INTRODUCTION AND CLINICAL CASE We report a new unusual case of a patient without known familiar history of melanocytic schwannoma or Carney complex with multiple melanocytic schwannoma in the spinal canal. Histologically, the tumor was composed of irregular interlacing spindle-shaped cells with pigments. The diagnosis is made by immunohistochemical techniques and electron microscopy findings. CONCLUSION We review the literature, and the different theories on the origin of these tumors are discussed.
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Affiliation(s)
- M J Katati
- Servicio de Neurocirugía, Hospital Virgen de las Nieves, Granada, España
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Abstract
OBJECTIVES To explore the opinion of general practitioners on the importance and legitimacy of sources of influence on medical practice. METHODS General practitioners (n=723) assigned to Primary Care Teams (PCTs) in two Spanish regions were randomly selected to participate in this study. A self administered questionnaire was sent by mail and collected by hand. The dependent variable collected the opinion on different sources that exert influence on medical practice. Importance was measured with a 9 item scale while legitimacy was evaluated with 16 items measured with a 1 to 7 point Likert scale. RESULTS The most important and legitimate sources of influence according to general practitioners were: training courses and scientific articles, designing self developed protocols and discussing with colleagues. The worst evaluated were: financial incentives and the role played by the pharmaceutical industry. CONCLUSIONS The development of medical practice is determined by many factors, grouped around three big areas: organisational setting, professional system and social setting. The medical professional system is the one considered as being the most important and legitimate by general practitioners. Other strategies of influence, considered to be very important by the predominant management culture (financial incentives), are not considered to be so by general practitioners. These results, however, are not completely reliable as regards the real network of influences existing in medical practice, which reflect instead different "value systems".
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Affiliation(s)
- L A Fernández
- Andalusian School of Public Health (EASP), Granada, Spain.
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Prieto JM, Fernandez F, Alvarez V, Espi A, García Marín JF, Alvarez M, Martín JM, Parra F. Immunohistochemical localisation of rabbit haemorrhagic disease virus VP-60 antigen in early infection of young and adult rabbits. Res Vet Sci 2000; 68:181-7. [PMID: 10756137 DOI: 10.1053/rvsc.1999.0357] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [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: 11/11/2022]
Abstract
This study evaluated the time course distribution of rabbit haemorrhagic disease virus (RHDV) structural protein VP60 in tissues from experimentally infected rabbits from three different age groups. Viral VP60 antigen could not be detected in tissue samples from animals under four weeks, and only a few hepatocytes (0.01 to 0.2 per cent) were stained in the 6-week-old animals. A 6-week-old rabbit euthanised at 72 hpi showed VP60-labelling in hepatocytes and macrophages close to areas of inflammation. Viral VP60 antigen was detected as early as 12 hpi in a few hepatocytes (0.03 per cent) from adult animals. Within this age group, the extent of hepatocyte labelling considerably increased at 18 (3.0 per cent), 24 (25.5 per cent), 36 (50 per cent) and 48 (60 per cent) hpi. Extrahepatic viral VP60 antigen was also detected at 36 and 48 hpi in spleen macrophages and lymphocytes from adult rabbits. These findings support the hypothesis that the hepatocyte is the only cell type in the liver able to support RHDV replication almost immediately after viral infection.
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Affiliation(s)
- J M Prieto
- Laboratorio de Sanidad Animal, Gijón, 33299, Spain
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Pena MJ, Mosquera MM, Pérez MC, Rodríguez San Román JL, Martín JM, Avalos O, Lafarga B. [Prevalence of hepatitis C virus genotypes: epidemiology and histologic characteristics]. Enferm Infecc Microbiol Clin 1998; 16:456-60. [PMID: 9918991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
OBJECTIVE To analyse the prevalence of HCV genotypes among patients from Gran Canaria and the relation with the routes of viral transmission, date of primoinfection and severity of hepatic lesion. PATIENTS AND METHODS 179 patients were studied. In 61 patients the date of exposure was determinate. Liver biopsies were obtained in 139 patients. Genotypes were determinate by reverse hybridisation using InnoLiPA genotyping kit (Innogenetics). RESULTS The distribution of genotypes was: 1b, 114 (63.7%), 1a, 30 (16.7%); 1, 17 (9.5%); 3a, 7 (3.9%); 4c/4d, 6 (3.3%); 2, 1 (0.5%); 2a/2c, 2 (1.1%), 3, 1 (0.5%) and 4f, 1 (0.5%). We did not find any case of coinfection with a second genotype. In univariable analysis, we found statistically differences in sex (78.9% of women infected with genotype 1b compared with 55.1% of men, p < 0.01 and 31.6% of men infected with 1a, 3a and 4c/4d compared with 15.7% of women, p < 0.01) and age (median age in genotype 1b 45 +/- 12 years vs 36 +/- 9 years in the other genotypes, p < 0.01). HCV subtypes 1a and 3a were predominant in patients IVDA (47.6% and 23.85% respectively) and 1b in blood transfusion receptors (71.2%) (p < 0.01). In 40.2% of the patients, the sources of infection were unknown. In the multivariable logistical regression analysis we found the only factor influencing the genotypes distribution was the transmission mechanism (p < 0.001) and sex and age are relationated with the transmission mode. The media infection duration in patients infected with 1b was 22 +/- 11 years vs 9 +/- 6 years in the other genotypes. We found differences in the liver histologic findings and the age of the patient, but not in the different genotypes. CONCLUSIONS Our study reflects the higher frequency of HCV subtype 1b in our area and a different prevalence of genotypes in relation to mode of transmission. Our results suggest that in our media the liver damage seems to be directly influenced by the age of the patient, but not influenced by HCV genotype.
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Affiliation(s)
- M J Pena
- Servicio de Microbiología, Hospital Nuestra Señora del Pino, Las Palmas de Gran Canaria
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Artús L, Cuscó R, Martín JM, González-Díaz G. Up to fifth-order Raman scattering of InP under nonresonant conditions. Phys Rev B Condens Matter 1994; 50:11552-11555. [PMID: 9975286 DOI: 10.1103/physrevb.50.11552] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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