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Latour-Álvarez I, Murcia-Clemente L, Vázquez-Pigueras I, Garramone-Ramírez JE, Clemente D, Sanz V, Torrelo A. STING-associated vasculopathy with onset in infancy (SAVI) presenting with skin lesions. Pediatr Dermatol 2024. [PMID: 38682895 DOI: 10.1111/pde.15620] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 03/30/2024] [Indexed: 05/01/2024]
Abstract
STING-associated vasculopathy with onset in infancy (SAVI) is caused by pathogenic gain-of-function variants in the gene TMEM173 (also named stimulator of interferon genes, STING1). This report details the case of an 11-year-old girl with SAVI who presented with skin-limited symptoms and discusses the phenotype-genotype correlations of the TMEM173 variant present in our patient. Treatment of SAVI focuses on preventing the development or progression of organ damage by reducing systemic inflammation. We summarize the available treatments for this syndrome.
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Affiliation(s)
- I Latour-Álvarez
- Department of Dermatology, Hospital Universitario del Vinalopó, Elche, Spain
| | - L Murcia-Clemente
- Department of Pediatric Pneumology, Hospital Universitario del Vinalopó, Elche, Spain
| | - I Vázquez-Pigueras
- Department of Pediatric Pneumology, Hospital Universitario del Vinalopó, Elche, Spain
| | - J E Garramone-Ramírez
- Department of Radiology and Imaging, Hospital Universitario del Vinalopó, Elche, Spain
| | - D Clemente
- Department of Pediatric Rheumatology, Hospital Infantil Niño Jesús, Madrid, Spain
| | - V Sanz
- Department of Pediatric Pneumology, Hospital Infantil Niño Jesús, Madrid, Spain
| | - A Torrelo
- Department of Dermatology, Hospital Infantil Niño Jesús, Madrid, Spain
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Castellano J, Sanz V, Cañas E, Sánchez E. Effect of firing temperature on humidity self-regulation functionality in a ceramic tile composition. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.05.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hirn J, García JE, Montesinos‐Navarro A, Sánchez‐Martín R, Sanz V, Verdú M. A Deep Generative Artificial Intelligence system to predict species coexistence patterns. Methods Ecol Evol 2022. [DOI: 10.1111/2041-210x.13827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- J. Hirn
- Instituto de Física Corpuscular (IFIC, Universidad de Valencia‐CSIC), E‐46980 Valencia Spain
| | - J. E. García
- Instituto de Física Corpuscular (IFIC, Universidad de Valencia‐CSIC), E‐46980 Valencia Spain
| | - A. Montesinos‐Navarro
- Centro de Investigaciones Sobre Desertificación (CIDE, CSIC‐Universidad de Valencia‐Generalitat Valenciana), E‐46113 Valencia Spain
| | - R. Sánchez‐Martín
- Centro de Investigaciones Sobre Desertificación (CIDE, CSIC‐Universidad de Valencia‐Generalitat Valenciana), E‐46113 Valencia Spain
| | - V. Sanz
- Instituto de Física Corpuscular (IFIC, Universidad de Valencia‐CSIC), E‐46980 Valencia Spain
- Department of Physics and Astronomy University of Sussex Brighton UK
| | - M. Verdú
- Centro de Investigaciones Sobre Desertificación (CIDE, CSIC‐Universidad de Valencia‐Generalitat Valenciana), E‐46113 Valencia Spain
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Bianchi A, Sanz V, Domínguez H, Torres M. Valorisation of the industrial hybrid carrageenan extraction wastes using eco-friendly treatments. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107070] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gavela MB, No JM, Sanz V, de Trocóniz JF. Nonresonant Searches for Axionlike Particles at the LHC. Phys Rev Lett 2020; 124:051802. [PMID: 32083910 DOI: 10.1103/physrevlett.124.051802] [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: 09/12/2019] [Revised: 12/17/2019] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
We propose a new collider probe for axionlike particles (ALPs), and more generally for pseudo-Goldstone bosons: nonresonant searches that take advantage of the derivative nature of their interactions with Standard Model particles. ALPs can participate as off shell mediators in the s channel of 2→2 scattering processes at colliders like the LHC. We exemplify the power of this novel type of search by deriving new limits on ALP couplings to gauge bosons via the processes pp→ZZ, pp→γγ, and pp→jj using run 2 CMS public data, probing previously unexplored areas of the ALP parameter space. In addition, we propose future nonresonant searches involving the ALP coupling to other electroweak bosons and/or the Higgs particle.
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Affiliation(s)
- M B Gavela
- Departamento de Fisica Teorica, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain
- Instituto de Fisica Teorica, IFT-UAM/CSIC, Cantoblanco, 28049 Madrid, Spain
| | - J M No
- Departamento de Fisica Teorica, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain
- Instituto de Fisica Teorica, IFT-UAM/CSIC, Cantoblanco, 28049 Madrid, Spain
| | - V Sanz
- Department of Physics and Astronomy, University of Sussex, BN1 9QH Brighton, United Kingdom
| | - J F de Trocóniz
- Departamento de Fisica Teorica, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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Sanz V, Flórez-Fernández N, Domínguez H, Torres MD. Valorisation of Camellia sinensis branches as a raw product with green technology extraction methods. Curr Res Food Sci 2019; 2:20-24. [PMID: 32914107 PMCID: PMC7473358 DOI: 10.1016/j.crfs.2019.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
This work deals with the study of tea stalks from pruning debris using environmental friendly extraction technology to offer new healthy properties. In the manufacturing tea industry, tea trees require to be pruned every year and most of their remains are discarded as a waste with no economic value. Microwave aqueous extraction and pressurized hot water extraction process (autohydrolysis) were used to recover bioactive compounds from the tea branches. Operating at a fixed solid: liquid ratio (1:15), the effect of the maximum heating temperatures from 140 to 220 °C was studied. Liquid extracts were analysed for total phenolic, oligosaccharides, protein, mineral and heavy metals content, as well as for antioxidant capacity. The antitumoral possibilities were also determined for selected samples. The obtained results indicated that both processes could be used as an alternative to recover bioactive compounds from tea wastes, although microwave-assisted extraction allowed saving time when compared with autohydrolysis processing. The temperature exhibited a relevant effect on the total phenolic content and antioxidant capacity, decreasing with the microwave treatment and increasing with the autohydrolysis temperature. The obtained extracts could be adequate for incorporation in food and non-food fields. Tea pruning remains were valorised using green extractions by microwave (MW) and autohydolysis (AH). MW and AH were efficient technologies to recover bioactive compounds. Values above 40 mg gallic acid equivalents/g extract and 0.10 g Trolox/g extract were identified. Future applications in cosmetics, pharmacy or food industries should be explored.
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Affiliation(s)
- V Sanz
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004, Ourense, Spain
| | - N Flórez-Fernández
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004, Ourense, Spain
| | - H Domínguez
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004, Ourense, Spain
| | - M D Torres
- Department of Chemical Engineering, University of Vigo (Campus Ourense), Edificio Politécnico, As Lagoas, 32004, Ourense, Spain
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Sánchez E, Sanz V, Cañas E, Sales J, Kayacı K, Taşkıran M, Anıl Ü, Türk Ş. Revisiting pyroplastic deformation. Application for porcelain stoneware tile bodies. Ann Ital Chir 2019. [DOI: 10.1016/j.jeurceramsoc.2018.09.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Brivio I, Gavela MB, Merlo L, Mimasu K, No JM, del Rey R, Sanz V. ALPs effective field theory and collider signatures. Eur Phys J C Part Fields 2017; 77:572. [PMID: 32009845 PMCID: PMC6959426 DOI: 10.1140/epjc/s10052-017-5111-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/26/2017] [Indexed: 06/09/2023]
Abstract
We study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo-) Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at colliders are explored for both scenarios, deriving new bounds and analyzing future prospects, including LHC and High Luminosity LHC sensitivities. Mono-Z, mono-W, W-photon plus missing energy and on-shell top final states are most promising signals expected in both frameworks. In addition, non-standard Higgs decays and mono-Higgs signatures are especially prominent and expected to be dominant in non-linear realisations.
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Affiliation(s)
- I. Brivio
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
- Niels Bohr International Academy, University of Copenhagen, 2100 Copenhagen, Denmark
| | - M. B. Gavela
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - L. Merlo
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - K. Mimasu
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
- Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université catholique de Louvain, Chemin du Cyclotron, 2, 1348 Louvain-la-Neuve, Belgium
| | - J. M. No
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
- Department of Physics, King’s College London, Strand, London, WC2R 2LS UK
| | - R. del Rey
- Departamento de Física Teórica and Instituto de Física Teórica, IFT-UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - V. Sanz
- Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH UK
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Jara-Gutiérrez P, Zafra MP, Sanz V, Del Pozo V, Fernandez-Nieto M. Asthma Due to Swiss Chard: Identification of a New Allergen. J Investig Allergol Clin Immunol 2017; 27:67-68. [PMID: 28211350 DOI: 10.18176/jiaci.0120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - M P Zafra
- Department of Immunology, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | - V Sanz
- Department of Immunology, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | - V Del Pozo
- Department of Immunology, IIS-Fundación Jiménez Díaz, Madrid, Spain
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Pastor M, Vazquez C, Quintana-Gallego M, Delgado I, Carro LM, Sanz V, Aguilar A, Girón-Moreno R, Luna C, Villa J, Prados C, Barrio M, Gartner S, Asensio O, Escribano A, Cols M, Gómez A, Pijoan J. 412 Spanish multicentre registry-based study on the phenotype of patients with cystic fibrosis carrying the V232D (c.695T>A) mutation. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30742-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kimura H, Suzuki M, Konno S, Nishimura M, Bobolea I, Barranco P, del Pozo V, Romero D, Sanz V, López-Carrasco V, Canabal J, Villasante C, Quirce S. Sputum periostin in patients with different severe asthma phenotypes. Allergy 2015; 70:884-5. [PMID: 26081263 DOI: 10.1111/all.12639] [Citation(s) in RCA: 4] [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] [Indexed: 11/29/2022]
Affiliation(s)
- H. Kimura
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - M. Suzuki
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - S. Konno
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - M. Nishimura
- First Department of Medicine; Hokkaido University Hospital; Sapporo Japan
| | - I. Bobolea
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - P. Barranco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
| | - V. del Pozo
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - D. Romero
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - V. Sanz
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - V. López-Carrasco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - J. Canabal
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - C. Villasante
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - S. Quirce
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
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Bobolea I, Barranco P, Del Pozo V, Romero D, Sanz V, López-Carrasco V, Canabal J, Villasante C, Quirce S. Sputum periostin in patients with different severe asthma phenotypes. Allergy 2015; 70:540-6. [PMID: 25631525 DOI: 10.1111/all.12580] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND Identifying inflammatory phenotypes is relevant in severe uncontrolled asthma. The aim of this study was to identify the different clinical, inflammatory, functional, and molecular phenotypes in patients with severe asthma and to investigate the potential role of sputum periostin as a biomarker of severe asthma phenotypes. PATIENTS AND METHODS Sputum induction was performed in 62 patients diagnosed with severe asthma. Skin prick testing, lung function tests, exhaled nitric oxide, hematimetry, and total serum IgE were performed. Periostin was measured in sputum supernatants. RESULTS Patients with asthma were phenotyped and 80% had late-onset asthma, 50% had fixed airflow obstruction, and 66% showed a Th2-high phenotype. With respect to inflammatory phenotypes, 71% were eosinophilic and 25% mixed granulocytic. Periostin levels were higher in patients with fixed as compared to variable airflow limitation (69.76 vs 43.84 pg/ml, P < 0.05) and in patients with eosinophilic as compared to mixed granulocytic phenotype (61.58 vs 37.31 pg/ml, P < 0.05). There was an inverse correlation between postbronchodilator FEV1 /FVC and periostin levels (-0.276, P < 0.05). CONCLUSION This study demonstrates the utility of periostin in phenotyping severe asthma. Periostin levels in sputum are associated with persistent airflow limitation in asthma patients with airway eosinophilia despite treatment with high-dose inhaled corticosteroids.
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Affiliation(s)
- I. Bobolea
- Department of Allergy; Hospital 12 de Octubre Institute for Health Research (i+12); Madrid Spain
| | - P. Barranco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
| | - V. Del Pozo
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - D. Romero
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - V. Sanz
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - V. López-Carrasco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - J. Canabal
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - C. Villasante
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - S. Quirce
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
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Sanz V. Technical Evolution of Ceramic Tile Printing. J Imaging Sci Technol 2013. [DOI: 10.2352/j.imagingsci.technol.56.5.050402] [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: 11/01/2022]
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de la Hera I, Sanz V, Cullen D, Chico R, Petiti G, Villar M, Burgués M, Sanz J, Castellanos M, Zarco O, Ortiz P, Rodríguez-Peralto J, Vanaclocha F. Necrosis of Ears after Use of Cocaine Probably Adulterated with Levamisole. Dermatology 2011; 223:25-8. [DOI: 10.1159/000329436] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Accepted: 05/07/2011] [Indexed: 11/19/2022] Open
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Liu-González M, Sanz-Ruíz F, Palanca P, Sanz V, Pérez-Priede M, García-Granda S, García- Rodríguez E. Crystal structure of bis(tetra-n-butylammonium) bis(2-sulfidopropionato)-disulfidodioxodimolybdate(V), [(NC4H9)4]2Mo2O2S2(C2H4SCOO)2. Z KRIST-NEW CRYST ST 2005. [DOI: 10.1524/ncrs.2005.220.14.671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu-González M, Sanz-Ruíz F, Palanca P, Sanz V, Pérez-Priede M, García-Granda S, García- Rodríguez E. Crystal structure of bis(tetra-n-butylammonium) tris(2-sulfidopropionato) sulfidodioxodimolybdate(V) monohydrate, [(NC4H9)4]2MO2O2S(C2H4SCOO)3 · H2O. Z KRIST-NEW CRYST ST 2005. [DOI: 10.1524/ncrs.2005.220.14.667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Martínez Castelao A, Ibernón M, Sarrias X, Sanz V, Moreso F, Rama I, Grinyó JM. Doxazosin GITS trough to peak ratio and 24-hour blood pressure monitoring in the management of hypertension in renal transplant patients. Transplant Proc 2003; 35:1736-8. [PMID: 12962776 DOI: 10.1016/s0041-1345(03)00731-0] [Citation(s) in RCA: 3] [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: 10/27/2022]
Abstract
UNLABELLED We have studied 20 patients, 10 male, 10 female, mean age 52.5+/-10.9 years, who received a cadaver kidney transplant between June 1996 and January 1999. The patients presented with mild or moderate high BP and were treated on a maintained immunosuppression with an anti-calcineurin agent and steroids, associated or not to mycophenolate-mofetil. At baseline, a 24-hour ambulatory BP monitoring was performed. General biochemical parameters were determined and doxazosin GITS (Gastro-Intestinal Therapeutic System) in a single dose of 4 mg/d was started. Doxazosin GITS was titrated four weeks after up to 8 mg/d if the BP was greater than 140/90 mm Hg. At week 12, biochemical analysis were repeated as well as the 24-hour BP monitoring and the T/P ratio was calculated. RESULTS The patients were divided in responders, T/P index >50%, n=10 or not-responders, T/P index <50%, n=10 patients). No differences in systolic BP (SBP), diastolic BP(DBP), plasma creatinine or proteinuria were seen at base-line. DBP was lower in responders than in non-responders (P=ns). Doxazosin doses were 5.5+/-3 mg/d vs 5.8+/-3 and T/P ratio 0.70+/-0.13 vs 0.17+/-0.14, (P=.001). There were no variations in pl. t. cholesterol, triglycerides, glucose or uric acid. CONCLUSIONS Treatment was safe and efficient, not increasing metabolic adverse effects. Doxazosin GITS is a safe agent which can reduce cardiovascular risk. In our patients, the good T/P ratio has been associated with a best diastolic BP control. This good profile should be taken into account for 24-hour BP control in hypertensive renal transplant patients.
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Affiliation(s)
- A Martínez Castelao
- Nephrology Department, Hospital de Bellvitge, CSUB, Hospitalet Llobregat, Universitat de Barcelona, Barcelona, Spain.
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Martínez-Castelao A, Hueso M, Sanz V, Rejas J, Sarrias J, Alsina J, Grinyó JM. Double-blind, crossover, comparative study of doxazosin and enalapril in the treatment of hypertension in renal transplant patients under cyclosporine immunosuppression. Transplant Proc 2002; 34:403-6. [PMID: 11959345 DOI: 10.1016/s0041-1345(01)02818-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- A Martínez-Castelao
- Nephrology Department, Hospital Príncipes de España, Bellvitge, CSUB, Hospitalet Llobregat, University of Barcelona, Barcelona, Spain.
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Arozarena I, Aaronson DS, Matallanas D, Sanz V, Ajenjo N, Tenbaum SP, Teramoto H, Ighishi T, Zabala JC, Gutkind JS, Crespo P. The Rho family GTPase Cdc42 regulates the activation of Ras/MAP kinase by the exchange factor Ras-GRF. J Biol Chem 2000; 275:26441-8. [PMID: 10840034 DOI: 10.1074/jbc.m002992200] [Citation(s) in RCA: 35] [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: 11/06/2022] Open
Abstract
The Ras guanine-nucleotide exchange factor Ras-GRF/Cdc25(Mn) harbors a complex array of structural motifs that include a Dbl-homology (DH) domain, usually found in proteins that interact functionally with the Rho family GTPases, and the role of which is not yet fully understood. Here, we present evidence that Ras-GRF requires its DH domain to translocate to the membrane, to stimulate exchange on Ras, and to activate mitogen-activated protein kinase (MAPK). In an unprecedented fashion, we have found that these processes are regulated by the Rho family GTPase Cdc42. We show that GDP- but not GTP-bound Cdc42 prevents Ras-GRF recruitment to the membrane and activation of Ras/MAPK, although no direct association of Ras-GRF with Cdc42 was detected. We also demonstrate that catalyzing GDP/GTP exchange on Cdc42 facilitates Ras-GRF-induced MAPK activation. Moreover, we show that the potentiating effect of ionomycin on Ras-GRF-mediated MAPK stimulation is also regulated by Cdc42. These results provide the first evidence for the involvement of a Rho family G protein in the control of the activity of a Ras exchange factor.
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Affiliation(s)
- I Arozarena
- Departamento de Biologia Molecular, Universidad de Cantabria, Santander 39011, Spain
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Sanz V, Arozarena I, Crespo P. Distinct carboxy-termini confer divergent characteristics to the mitogen-activated protein kinase p38alpha and its splice isoform Mxi2. FEBS Lett 2000; 474:169-74. [PMID: 10838079 DOI: 10.1016/s0014-5793(00)01598-2] [Citation(s) in RCA: 23] [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: 11/27/2022]
Abstract
The p38 family of mitogen-activated protein kinases is composed of several isoforms. Mxi2 is a splicing variant of p38alpha that harbors a unique carboxy-terminus. Here we show that this sole divergence results in remarkable differences between Mxi2 and p38alpha. Mxi2 is distinctively activated by stress stimuli and potently activated by mitogens. Mxi2 affinity for bona fide p38 substrates is remarkably diminished and Mxi2 activity is largely unaffected by the phosphatase CL100. Also, Mxi2 sensitivity to inhibition by SB203580 is greatly reduced. Interestingly, we show that the p38 C-terminus is involved in conferring sensitivity to this compound. Overall, our results point to the p38 carboxy-terminus as a key determinant of the biochemical properties of this family of kinases.
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Affiliation(s)
- V Sanz
- Unidad de Biología Molecular del Cáncer, Departamento de Biología Molecular, Universidad de Cantabria, Santander, Spain
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Martínez-Castelao A, Hueso M, Sanz V, Rejas J, Alsina J, Grinyó JM. Treatment of hypertension after renal transplantation: long-term efficacy of verapamil, enalapril, and doxazosin. Kidney Int Suppl 1998; 68:S130-4. [PMID: 9839297 DOI: 10.1046/j.1523-1755.1998.06826.x] [Citation(s) in RCA: 37] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Normal blood pressure is a good marker of graft survival after renal transplantation, and effective antihypertensive treatment reduces the progression of graft damage. We conducted a long-term follow-up study of 88 hypertensive renal transplant recipients, all of whom were taking sustained cyclosporine A (CsA) immunosuppression. The patients were treated for at least three years, and initially received 240 mg/day of verapamil (N = 24, group I), 5 mg/day of enalapril (N = 24, group II) or 1 mg/day of doxazosin (N = 40, group III). Baseline creatinine did not differ in the three groups, but proteinuria was higher in the enalapril group (7 patients had proteinuria > 1.5 g/day). Treatment was withdrawn in 5 patients in the verapamil group, 5 in the enalapril group and 2 in the doxazosin group due to drug-related side effects. Blood pressure (BP) control at three years was equivalent in the three groups (systolic BP, group I 157 +/- 12; group II 149 +/- 19; group III 154 +/- 21; diastolic BP, group I 90 +/- 8.7, group II 84 +/- 9.8, group III 90.5 +/- 16; mean BP, group I 113 +/- 7, group II 106 +/- 10, group III 106 +/- 29). Two patients in group I, 3 in group II and 15 in group III required additional antihypertensive drugs. CsA levels increased in the verapamil-treated patients, allowing for an early decrease in CsA doses (1 year doses, 3.3 +/- 1 mg/kg body wt/day in group I, 4.3 +/- 1.6 in group II, 3.7 +/- 1.6 in group III). Six cardiovascular events occurred, 3 in group I, 1 in group II, and 2 in group III patients. One patient died in the enalapril group and another in the doxazosin group. Eight verapamil-treated patients, 8 enalapril-treated patients and 4 doxazosin-treated patients lost their grafts due to biopsy-proven chronic transplant nephropathy. In conclusion, the three antihypertensive agents are effective in reducing blood pressure, with no clear advantage of one above any other. Verapamil allows the CsA dose to be reduced, thus decreasing the cost of immunosupression. Enalapril can be a more effective antiproteinuric agent, but hyperkalemia or impaired allograft function may occur in patients with non-optimal allograft function. Doxazosin offers an excellent safety and efficacy profile, and when not efficient by itself in controlling blood pressure, is an ideal concomitant agent in hypertensive renal transplant patients.
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Affiliation(s)
- A Martínez-Castelao
- Nephrology Department, Hospital de Bellvitge Principes de España, CSUB, Barcelona, Spain
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Frechina JV, Palanca P, Picher T, Sanz V, Ramirez JA. Preparation of 4-substituted 1,3-oxathiolan-5-ones viathe sulphenium ion intermediate generated by the pummerer rearrangement. J Heterocycl Chem 1993. [DOI: 10.1002/jhet.5570300314] [Citation(s) in RCA: 4] [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: 11/05/2022]
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Frechina JV, Sanz V, Cervilla A, Ramirez JA, Ghilardi CA, Orlandini A. Structure of cyclohexanespiro-2'-(1',3'-oxathiolan-5'-one 3'-oxide). Acta Crystallogr C 1992. [DOI: 10.1107/s0108270191014920] [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: 11/11/2022] Open
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