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Ertl DA, de Nanclares GP, Jüppner H, Hanna P, Pagnano A, Pereda A, Rothenbuhler A, Del Sindaco G, Ruiz-Cuevas P, Audrain C, Escribano A, Berkenou J, Gleiss A, Mantovani G, Linglart A. Recombinant growth hormone improves growth and adult height in patients with maternal inactivating GNAS mutations. Eur J Endocrinol 2023; 189:123-131. [PMID: 37440712 PMCID: PMC11077274 DOI: 10.1093/ejendo/lvad085] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/15/2023] [Accepted: 06/01/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND Maternal inactivating GNAS mutations lead to pseudohypoparathyroidism 1A (PHP1A), newly classified as inactivating parathyroid hormone (PTH)/PTHrP-signaling disorder type 2 of maternal inheritance (iPPSD2). Patients present with resistance to PTH and other hormones, subcutaneous ossifications, brachydactyly, short stature, and early-onset obesity. They can be born small for gestational age (SGA) and may present with growth hormone (GH) deficiency. The use of recombinant human GH (rhGH) therapy has been sporadically reported, yet we lack data on the long-term efficacy and safety of rhGH, as well as on adult height. OBJECTIVE Our multicenter, retrospective, observational study describes growth in patients treated with rhGH in comparison with untreated iPPSD2/PHP1A controls. METHODS We included 190 patients, of whom 26 received rhGH. Height, weight, body mass index at various time points, and adult height were documented. We analyzed the effect of rhGH on adult height by using linear mixed models. RESULTS Adult height was available for 11/26 rhGH-treated individuals and for 69/164 controls. Patients treated with rhGH showed a gain in height of 0.7 standard deviation scores (SDS) after 1 year (CI +0.5 to +0.8, P < .001) and of 1.5 SDS after 3 years (CI +1.0 to +2.0, P < .001). Additionally, there was a clear beneficial impact of rhGH on adult height when compared with untreated controls, with a difference of 1.9 SDS (CI +1.1 to +2.7, P < .001). Body mass index SDS did not vary significantly upon rhGH therapy. CONCLUSION Recombinant human growth hormone treatment of iPPSD2/PHP1A patients with short stature improves growth and adult height. More studies are needed to confirm long-term efficacy and safety.
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Affiliation(s)
- Diana-Alexandra Ertl
- Department of Endocrinology and Diabetology for Children and Department of Adolescent Medicine, AP-HP, Bicetre Paris-Saclay University Hospital, 94270 Le Kremlin-Bicetre, France
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, 1090 Vienna, Austria
- Reference Center for Rare Bone and Growth Disorders, Vienna Bone and Growth Center (ERN-BOND), 1090 Vienna, Austria
| | - Guiomar Perez de Nanclares
- Molecular (Epi) Genetics Laboratory, Bioaraba Health Research Institute, Araba University Hospital, 01009 Vitoria-Gasteiz, Spain
| | - Harald Jüppner
- Department of Medicine, Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States
| | - Patrick Hanna
- Department of Endocrinology and Diabetology for Children and Department of Adolescent Medicine, AP-HP, Bicetre Paris-Saclay University Hospital, 94270 Le Kremlin-Bicetre, France
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
- Department of Medicine, Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, United States
| | - Angela Pagnano
- Endocrinology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Arrate Pereda
- Molecular (Epi) Genetics Laboratory, Bioaraba Health Research Institute, Araba University Hospital, 01009 Vitoria-Gasteiz, Spain
| | - Anya Rothenbuhler
- Department of Endocrinology and Diabetology for Children and Department of Adolescent Medicine, AP-HP, Bicetre Paris-Saclay University Hospital, 94270 Le Kremlin-Bicetre, France
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
| | - Giulia Del Sindaco
- Endocrinology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Pilar Ruiz-Cuevas
- Department of Pediatric Endocrinology, Josep Trueta University Hospital, 17007 Girona, Spain
| | - Christelle Audrain
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
| | - Arancha Escribano
- Department of Pediatric Endocrinology, University Hospital Virgen de la Arrixaca, 30120 El Palmar, Murcia, Spain
| | - Jugurtha Berkenou
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
| | - Andreas Gleiss
- Center for Medical Data Science, Medical University of Vienna, 1090 Vienna, Austria
| | - Giovanna Mantovani
- Endocrinology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Agnès Linglart
- Department of Endocrinology and Diabetology for Children and Department of Adolescent Medicine, AP-HP, Bicetre Paris-Saclay University Hospital, 94270 Le Kremlin-Bicetre, France
- Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, AP-HP, Filière OSCAR and Platform of expertise for rare diseases Paris-Saclay, Bicêtre Paris-Saclay Hospital, 94270 Le Kremlin-Bicêtre, France
- INSERM, Physiologie et physiopathologie endocrinienne, Université Paris Saclay, 94276 Paris, France
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Ferrer C, Huertas C, Ocanto A, García D, Escribano A, Sáez M. PO-1733 Dosimetric comparison between helical tomotherapy and VMAT for pediatric total lymphoid irradiation. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03697-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ferrer C, Huertas C, Plaza R, de la Monja P, Ocanto A, Escribano A, Pérez A, Sáez M. Simple template-based optimization for pediatric total lymphoid irradiation (TLI) radiotherapy treatments. Med Dosim 2021; 46:201-207. [PMID: 33309515 DOI: 10.1016/j.meddos.2020.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/27/2020] [Accepted: 11/18/2020] [Indexed: 10/22/2022]
Abstract
Total lymphoid irradiation (TLI) is used in the management of pediatric allogeneic hematopoietic stem cell transplantation (HSCT. This work aims to simplify the treatment planning process for TLI via a proposed template using the volumetric modulated arc therapy (VMAT) technique. Fifteen pediatric patients were planned, prescribed to 8 Gy in 4 fractions. Cost functions included in the template were the ones for the planning target volume (PTV), and conformality cost function (CCF) for the rest of the patient's volume. Conformity index (CI), homogeneity index (HI), conformation number (CN), gradient index (GI), integral dose, and doses to the organs at risk achieved with the template were reported. Cost function influence over various indexes was studied by Wilcoxon signed ranks test. Same 15 patients were planned with 3-dimensional conventional radiotherapy (3D-CRT) technique for comparison. Mean CI and HI were 1.33 and 0.13, respectively, which indicates good dose conformation and homogeneity. Mean CN and GI values were 0.69 and 4.51, respectively. Mean PTV coverage was reached (V100% > 95%). No correlation between the CCF and indexes values was found (p > 0.05). Doses to organs at risk (OARs) were as low as possible without losing PTV coverage. VMAT plan showed higher levels of conformation and similar homogeneity as 3D-CRT plans. Doses to OARs were inferior with VMAT except for the right kidney. The proposed template simplifies the planning of TLI treatments, and it is able to create acceptable plans with little modification in order to reduce doses to certain organs like the kidneys or the heart. VMAT technique showed higher conformation and lower doses to OAR compared to 3D-CRT.
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Affiliation(s)
- C Ferrer
- Department of Medical Physics and Radiation Protection, Hospital Universitario La Paz, Madrid, Spain.
| | - C Huertas
- Department of Medical Physics and Radiation Protection, Hospital Universitario La Paz, Madrid, Spain
| | - R Plaza
- Department of Medical Physics and Radiation Protection, Hospital Universitario La Paz, Madrid, Spain
| | - P de la Monja
- Department of Medical Physics and Radiation Protection, Hospital Universitario La Paz, Madrid, Spain
| | - A Ocanto
- Radiation Oncology Department, Hospital Universitario La Paz, Madrid, Spain
| | - A Escribano
- Radiation Oncology Department, Hospital Universitario La Paz, Madrid, Spain
| | - A Pérez
- Pediatric Hematology-Oncology Department, Hospital Universitario La Paz, Madrid, Spain
| | - M Sáez
- Department of Medical Physics and Radiation Protection, Hospital Universitario La Paz, Madrid, Spain
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Lacámara N, Lecumberri B, Barquiel B, Escribano A, González-Casado I, Álvarez-Escolá C, Aleixandre-Blanquer F, Morales F, Alfayate R, Bernal-Soriano MC, Miralles R, Yildirim Simsir I, Özgen AG, Bernal J, Berbel P, Moreno JC. Identification of Resistance to Exogenous Thyroxine in Humans. Thyroid 2020; 30:1732-1744. [PMID: 32498666 DOI: 10.1089/thy.2019.0825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: Thyroxine (T4) to triiodothyronine (T3) deiodination in the hypothalamus/pituitary is mediated by deiodinase type-2 (D2) activity. Dio2(-/-) mice show central resistance to exogenous T4. Patients with resistance to exogenous thyroxine (RETH) have not been described. The aim of this study was to identify hypothyroid patients with thyrotropin (TSH) unresponsiveness to levothyroxine (LT4) and to characterize the clinical, hormonal, and genetic features of human RETH. Methods: We investigated hypothyroid patients with elevated TSH under LT4 treatment at doses leading to clinical and/or biochemical hyperthyroidism. TSH and free T4 (fT4) were determined by chemiluminescence, and total T4, T3, and reverse T3 (rT3) by radioimmunoassay. TSH/fT4 ratio at inclusion and T3/T4, rT3/T4, and T3/rT3 ratios at follow-up were compared with those from patients with resistance to thyroid hormone (RTH) due to thyroid hormone receptor-β (THRB) mutations. DIO2, including the Ala92-D2 polymorphism, selenocysteine binding protein 2 (SECISBP2), and THRB were fully sequenced. Results: Eighteen hypothyroid patients (nine of each sex, 3-59 years) treated with LT4 showed elevated TSH (15.5 ± 4.7 mU/L; reference range [RR]: 0.4-4.5), fT4 (20.8 ± 2.4 pM; RR: 9-20.6), and TSH/fT4 ratio (0.74 ± 0.25; RR: 0.03-0.13). Despite increasing LT4 doses from 1.7 ± 1.0 to 2.4 ± 1.7 μg/kg/day, TSH remained elevated (6.9 ± 2.7 mU/L). Due to hyperthyroid symptoms, LT4 doses were reduced, and TSH increased again to 7.9 ± 3.2 mU/L. In the euthyroid/hyperthyrotropinemic state, T3/T4 and T3/rT3 ratios were decreased (9.2 ± 2.4, RR: 11.3-15.3 and 2.5 ± 1.4, RR: 7.5-8.5, respectively) whereas rT3/T4 was increased (0.6 ± 0.2; RR: 0.43-0.49), suggesting reduced T4 to T3 and increased T4 to rT3 conversion. These ratios were serum T4-independent and were not observed in RTH patients. Genetic testing was normal. The Ala92-D2 polymorphism was present in 7 of 18 patients, but the allele dose did not correlate with RETH. Conclusions: Human RETH is characterized by iatrogenic thyrotoxicosis and elevated TSH/fT4 ratio. In the euthyroid/hyperthyrotropinemic state, it is confirmed by decreased T3/T4 and T3/rT3 ratios, and elevated rT3/T4 ratio. This phenotype may guide clinicians to consider combined T4+T3 therapy in a targeted fashion. The absence of germline DIO2 mutations suggests that aberrant post-translational D2 modifications in pituitary/hypothalamus or defects in other genes regulating the T4 to T3 conversion pathway could be involved in RETH.
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Affiliation(s)
- Nerea Lacámara
- Thyroid Molecular Laboratory, Institute for Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Autonomous University of Madrid, Madrid, Spain
- The Rare Diseases Networking Biomedical Research Centre (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Beatriz Barquiel
- Department of Endocrinology, La Paz University Hospital, Madrid, Spain
| | - Arancha Escribano
- Department of Pediatric Endocrinology, Virgen de la Arrixaca University Hospital, Murcia, Spain
| | | | | | | | - Francisco Morales
- Department of Endocrinology, Virgen Del Rocío University Hospital, Sevilla, Spain
| | - Rocío Alfayate
- Clinical Chemistry Department, Alicante University Hospital, Alicante, Spain
| | | | - Raquel Miralles
- Department of Endocrinology, Alicante University Hospital, Alicante, Spain
| | - Ilgin Yildirim Simsir
- Department of Endocrinology and Metabolism Disorders, Ege University Medical Faculty, Izmir, Turkey
| | - Ahmet Gökhan Özgen
- Department of Endocrinology and Metabolism Disorders, Ege University Medical Faculty, Izmir, Turkey
| | - Juan Bernal
- Department of Endocrine and Nervous System, Instituto de Investigaciones Biomédicas, CSIC, and CIBERER Instituto de Salud Carlos III, Madrid, Spain
| | - Pere Berbel
- Department of Histology and Anatomy, Faculty of Medicine, Universidad Miguel Hernández de Elche, Alicante, Spain
| | - Jose Carlos Moreno
- Thyroid Molecular Laboratory, Institute for Medical and Molecular Genetics (INGEMM), La Paz University Hospital, Autonomous University of Madrid, Madrid, Spain
- The Rare Diseases Networking Biomedical Research Centre (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
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Ocanto A, Escribano A, Glaría L, Rodríguez I, Ferrer C, Huertas C, Pérez A, Morera R. TLI in pediatric patients. Clin Transl Oncol 2019; 22:884-891. [PMID: 31542864 DOI: 10.1007/s12094-019-02205-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 08/31/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Hematopoietic progenitor cell transplantation (HSCT) is a procedure used in different hematological diseases as part of the curative treatment, so the investigators propose a system of conditioning of reduced intensity based on total lymphoid irradiation (TLI) as an alternative to the classic total body irradiation (TBI) followed by haploidentical transplantation in patients compatible with a single HLA haplotype, as an alternative to patients who do not have an HLA compatible donor. MATERIALS AND METHODS A cohort of 25 patients with hematological disease underwent haploidentical HSCT from February 2015 to May 2018, conditioned with TLI from day - 10 (2-4 days of treatment) followed by thiotepa (5 mg/kg/12 h) and melphalan (70 mg/m2/day) prior to HSCT and prophylaxis with ciclosporin (1.5 mg/kg/12 h). 2 Gy/fraction was administered to complete 8 Gy with IMRT and VMAT technique. RESULTS 12% rejection of the transplant was obtained with acute GVHD < II (48%) and chronic GVHD 12%. No acute toxicity was recorded in irradiated patients and 56% survival of patients at the end of follow-up. CONCLUSION Conditioning the haploidentical transplant with TLI, IMRT, and VMAT techniques compared with TBI and RT3D-C techniques is a feasible technique that helps inducing the necessary immunosuppression in patients with a high risk of graft rejection, minimal adverse effects, low incidence of GVHD, and high survival rate.
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Affiliation(s)
- A Ocanto
- Radiation Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain.
| | - A Escribano
- Radiation Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain
| | - L Glaría
- Radiation Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain
| | - I Rodríguez
- Radiation Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain
| | - C Ferrer
- Radiophysics and Radioprotection Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain
| | - C Huertas
- Radiophysics and Radioprotection Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, Spain
| | - A Pérez
- Pediatric Hematology-Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, 28046, Madrid, Spain
| | - R Morera
- Radiation Oncology Department, Hospital Universitario La Paz, Pº de La Castellana, 261, Madrid, 28046, 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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Ferrer C, Huertas C, Escribano A, Plaza R, Morera R, Serrada A. EP-1580: Dosimetric comparison between 3D-conformal radiation therapy and VMAT in Total Lymphoid Irradiation. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32015-7] [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: 11/17/2022]
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Lozano A, Marruecos J, Farre N, Giralt J, Morera R, Planas I, Lanzuela M, Escribano A, Glaria L, Mesia R, Rubio J, Lopez-Pousa A, Baste N, Castelo B, Cirauqui B, Martinez-Trufero J, Ortiz J, Grima P, Valenti V, Tarrago C, Bosser R. PO-127: Melatonin oral gel for prevention oral mucositis head and neck cancer undergoing chemo/bio radiation (MUCOMEL). Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30261-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: 11/16/2022]
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Perez-Ferrer A, Gredilla-Díaz E, de Vicente-Sánchez J, Kollmann-Camaiora A, Escribano A. Ventilation with facial mask in the prone position for radiotherapy procedures in children. Rev Esp Anestesiol Reanim 2016; 63:192-196. [PMID: 26049211 DOI: 10.1016/j.redar.2015.04.010] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Revised: 04/23/2015] [Accepted: 04/27/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES Ventilation of patients undergoing procedures in the prone position represents a challenge for the anesthesiologist, especially when trying to avoid tracheal intubation. This study aimed to test the effectiveness and safety of a prototype designed for pediatric facial mask ventilation in the prone position. MATERIAL AND METHODS A prospective descriptive study was conducted on 105 sedations performed in 3 children scheduled for radiotherapy treatment of posterior fossa desmoplastic medulloblastoma (6 and 4 y.o. males), and neuroblastoma in temporal area (4 y.o. male). Induction and maintenance of sedation were conducted with sevoflurane in oxygen, maintaining spontaneous ventilation. After achieving loss of consciousness and immobility, the patients were placed in the prone position. Their heads were fixed with the forehead and face supported by a prototype made with a cast of expanded polystyrene (EPS), which held the facial mask (connected to a Mapleson D circuit), and the back of the head immobilized with a layer of thermoplastic material. Time variables and complications were recorded. RESULTS All sedations were performed according to the planned protocol. All patients maintained oxygen saturation levels above 95%, and no complications were reported. Daily hospital length of stay including the procedure and post anesthetic recovery was 54.4±7.9 min (mean±SD). CONCLUSIONS The prototype and the sedation technique with face mask in the prone position employed were effective and safe, allowing the completion of the radiotherapy sessions and securing the airway in a minimally invasive way, maintaining adequate ventilation, light sedation and enabling early hospital discharge.
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Affiliation(s)
- A Perez-Ferrer
- Servicio de Anestesiología y Reanimación, Hospital Universitario La Paz, Madrid, España.
| | - E Gredilla-Díaz
- Servicio de Anestesiología y Reanimación, Hospital Universitario La Paz, Madrid, España
| | - J de Vicente-Sánchez
- Servicio de Anestesiología y Reanimación, Hospital Universitario La Paz, Madrid, España
| | - A Kollmann-Camaiora
- Servicio de Anestesiología y Reanimación, Hospital Universitario La Paz, Madrid, España
| | - A Escribano
- Servicio de Oncología Radioterápica, Hospital Universitario La Paz, Madrid, España
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Latorre I, Díaz J, Mialdea I, Serra-Vidal M, Altet N, Prat C, Díez N, Escribano A, Casas I, Rodrigo C, Ausina V, Ruhwald M, Domínguez J. IP-10 is an accurate biomarker for the diagnosis of tuberculosis in children. J Infect 2014; 69:590-9. [PMID: 24975172 DOI: 10.1016/j.jinf.2014.06.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 03/11/2014] [Revised: 05/14/2014] [Accepted: 06/03/2014] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Performance of IFN-γ assays in children is compromised. Therefore, we investigated the utility of IP-10 for the detection of active tuberculosis (TB) and latent tuberculosis infection (LTBI) diagnosis in children; comparing its positivity with QuantiFERON-TB Gold In-Tube (QFN-G-IT) and T-SPOT.TB. METHODS We studied 230 children from three groups: active TB, screening (healthy children without known exposure to active TB patient screened at school or by their paediatrician) and contact-tracing studies. IFN-γ release was determined by QFN-G-IT and T-SPOT.TB. IP-10 was detected in QFN-G-IT supernatants by ELISA. RESULTS When combining QFN-G-IT and IP-10 assays, positive results improved significantly from 38.3% in QFN-G-IT and 33.9% in IP-10 to 41.3%. Age and type of contact were significant risk factors associated with positive QFN-G-IT and IP-10 results. IP-10 levels after antigen-specific stimulation were significantly higher in comparison to IFN-γ levels. Correlation between the three assays was good (κ = 0.717-0.783). CONCLUSIONS IP-10 cytokine is expressed in response to TB specific-antigens used in QFN-G-IT. In conclusion, the use of IFN-γ T-cell based assays in combination with an additional IP-10 assay detection could be useful for diagnosing active TB and LTBI in children.
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Affiliation(s)
- I Latorre
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain
| | - J Díaz
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain
| | - I Mialdea
- Unidad de Neumología Infantil, Hospital Clínico Universitario Valencia, Universidad de Valencia, Spain
| | - M Serra-Vidal
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain
| | - N Altet
- Unidad de Prevención y Control de la Tuberculosis de Barcelona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - C Prat
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain
| | - N Díez
- Unidad de Neumología Infantil, Hospital Clínico Universitario Valencia, Universidad de Valencia, Spain
| | - A Escribano
- Unidad de Neumología Infantil, Hospital Clínico Universitario Valencia, Universidad de Valencia, Spain
| | - I Casas
- Servei de Medicina Preventiva, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - C Rodrigo
- Universitat Autònoma de Barcelona, Bellaterra, Spain; Servei de Pediatria, Hospital Universitari Germans Trias I Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain
| | - V Ausina
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain
| | - M Ruhwald
- Department of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark
| | - J Domínguez
- Servei de Microbiologia, Hospital Universitari Germans Trias i Pujol, Institut d'Investigació Germans Trias i Pujol, Badalona, Spain; Universitat Autònoma de Barcelona, Bellaterra, Spain; CIBER Enfermedades Respiratorias, Instituto de Salud Carlos III, Badalona, Spain.
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Fernández-Teijeiro A, Hasenclever D, Echevarría A, Garrido C, Vivanco J, Guibelalde M, Carboné A, Escribano A, Rodriguez I, Coronado M. Outcome of Spanish Patients outside Euronet-PHL-C1. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1371135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Amor AJ, Halperin I, Alfayate R, Borrás VM, Escribano A, González C, Gutirrez A, Mauri M, Pérez P, Picό A, Vourliotaki I, Oriola J. Identification of four novel mutations in the thyroid hormone receptor-β gene in 164 Spanish and 2 Greek patients with resistance to thyroid hormone. Hormones (Athens) 2014; 13:74-8. [PMID: 24722129 DOI: 10.1007/bf03401322] [Citation(s) in RCA: 11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVE The aim of the study was to describe the clinical, biochemical, and genetic features of a sample of Mediterranean patients with RTH (resistance to thyroid hormone) due to mutations in TRβ (thyroid hormone receptor beta) referred to our institution during the last 15 years. DESIGN 166 blood samples were received for RTH genetic testing between January 1997 and December 2011. Genetic testing was performed by PCR amplification followed by sequencing of exons 7, 8, 9, and 10. Clinical and biochemical features were obtained from available information sent by referring hospitals. RESULTS Mutations were identified in 50 patients (29 probands and 21 relatives). 64% were women, and mean ± stdev age at diagnosis among probands was 33.2 ± 20.5 years. The following clinical features were recorded: goiter in 50%, hyperkinetic behavior in 32%, and tachycardia in 29%. Up to 19% of the probands had undergone some type of thyroidal ablative therapy before diagnosis. As for biochemical features, mean ± stdev TSH was 10.2 ± 21.4 mUI/L, and mean ± stdev fT4 was 35.5 ± 10.8 pmol/L. We found four new mutations: p.Phe451Leu, p.Pro452Arg, p.Glu457Gly, and p.Phe459Leu. CONCLUSIONS The clinical and biochemical characteristics of our samples of Mediterranean populations with RTH were similar to those described in the published literature. Interestingly, in our populations we have identified four novel mutations in the TRβ gene.
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Affiliation(s)
- Antonio J Amor
- Endocrinology and Nutrition Department, Hospital Clίnic i Universitari, Barcelona, Spain
| | - Irene Halperin
- Endocrinology and Nutrition Department, Hospital Clίnic i Universitari, Barcelona, Spain
| | - Rocίo Alfayate
- Endocrinology and Nutrition Department, Hospital General Universitario, Alicante, Spain
| | - Victoria M Borrás
- Pediatrics Department, Hospital General de Granollers, Barcelona, Spain
| | - Arancha Escribano
- Pediatrics Department, Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Cintia González
- Endocrinology and Nutrition Department, Hospital Sant Pau, Barcelona, Spain
| | - Antonio Gutirrez
- Pediatrics Department, Hospital Virgen de la Arrixaca, Murcia, Spain
| | - Montserrat Mauri
- Endocrinology and Nutrition Department, Hospital General Universitario, Alicante, Spain
| | - Pilar Pérez
- Pediatrics Department, Hospital Marina Baixa, Alicante; Spain
| | - Antonio Picό
- Endocrinology and Nutrition Department, Hospital General Universitario, Alicante, Spain
| | - Irene Vourliotaki
- Endocrinology and Metabolism Department, Venizelio General Hospital, Heraklio, Crete, Greece
| | - Josep Oriola
- Biochemistry and Molecular Genetics Department, Hospital Clίnic i Universitari, Barcelona, Spain
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Caballero S, Martorell A, Escribano A, Belda J. Markers of airway inflammation in the exhaled breath condensate of preschool wheezers. J Investig Allergol Clin Immunol 2013; 23:7-13. [PMID: 23653968] [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: 06/02/2023] Open
Abstract
BACKGROUND Leukotrienes (LT), isoprostanes, and nitrites/nitrates are biomarkers of airway inflammation and oxidative stress that can be detected in exhaled breath condensate (EBC). The aim of this study was to evaluate LTB4, LTE4, 8-isoprostane, and nitrite/nitrate levels in the EBC of healthy and wheezing preschool children. METHODS We included 21 healthy nonatopic children and 25 patients with recurrent wheezing episodes in a cross-sectional study. LTB4, LTE4, and 8-isoprostane concentrations were measured directly in EBC using a specific enzyme immunoassay; nitrite/nitrate concentrations were measured using a colorimetric assay. RESULTS LTB4 concentrations were higher in children with wheezing episodes than in healthy controls (76 pg/mL vs 20 pg/mL, P < .001). LTE4 was increased in children with wheezing episodes than in healthy controls (68 pg/mL vs 35 pg/mL, P < .001). Nitrite concentrations were higher in children with wheezing episodes than in healthy controls (14 pg/mL vs 9.7 pg/mL, P < .03). We found no differences in 8-isoprostane and nitrate concentrations between the patients and the healthy controls. CONCLUSIONS Our findings suggest that EBC is a suitable noninvasive method for the assessment of airway inflammation and oxidative stress in preschool children. Levels of LTB4, LTE4, and nitrites were higher in children with recurrent wheezing episodes than in healthy controls.
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Affiliation(s)
- S Caballero
- Unidad de Alergología, Hospital General Universitario, Valencia, Spain.
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14
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López-Siguero JP, López-Canti LF, Espino R, Caro E, Fernández-García JM, Gutiérrez-Macías A, Rial JM, Lechuga JL, Macías F, Martínez-Aedo MJ, Rico S, Rodríguez I, Guillén J, Arroyo FJ, Bernal S, Espigares R, Núñez M, Escribano A, Barrionuevo JL, Gentil J, Barrios V, Fernández-Nistal A, Martos-Moreno GA, Martínez V, Argente J. Effect of recombinant growth hormone on leptin, adiponectin, resistin, interleukin-6, tumor necrosis factor-α and ghrelin levels in growth hormone-deficient children. J Endocrinol Invest 2011; 34:300-6. [PMID: 20634639 DOI: 10.1007/bf03347090] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [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: 12/14/2022]
Abstract
BACKGROUND Treatment with GH promotes linear growth and decreases body fat in patients with isolated GH deficiency (GHD). However, few studies have analyzed how GH replacement modifies ghrelin levels and the adipokine profile and the relationship of these modifications with the metabolic changes. AIMS To analyze the eventual differences between serum levels of leptin, leptin soluble receptor (sOBR), resistin, adiponectin, interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), total (TG) and acylated ghrelin (AG) and lipid and glycemic profiles in children with GHD, as well as to determine the effect of GH replacement on these parameters during the first year of therapy. SUBJECTS AND METHODS Thirty pre-pubertal (Tanner stage I) GHD children and 30 matched controls were enrolled. Children with GHD were studied before and after 6 and 12 months of GH treatment. Weight, height, BMI, fasting glucose, insulin, lipid profile and serum levels of adipokines and ghrelin were studied at every visit. Adi - pokines, insulin and ghrelin levels were determined by using commercial radio- and enzymoimmunoassays. RESULTS At baseline children with GHD had significantly higher sOBR (p<0.01) and adiponectin (p<0.01) levels than controls. Treatment with GH resulted in a decline in leptin (p<0.05) and TG (p<0.001) levels, an increase of homeostasis model assessment index and restored IGF-I levels (p<0.001). CONCLUSIONS These data indicate that GH replacement has a negative effect on leptin levels and may also produce a slight unfavorable effect on carbohydrate metabolism. In addition, the changes observed in the adipokine profile appear to be independent of body mass index.
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15
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Kuehni CE, Frischer T, Strippoli MPF, Maurer E, Bush A, Nielsen KG, Escribano A, Lucas JSA, Yiallouros P, Omran H, Eber E, O'Callaghan C, Snijders D, Barbato A. Factors influencing age at diagnosis of primary ciliary dyskinesia in European children. Eur Respir J 2010. [PMID: 20530032 DOI: 10.1183/09031936.00001010.] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Primary ciliary dyskinesia (PCD) is a hereditary disorder of mucociliary clearance causing chronic upper and lower airways disease. We determined the number of patients with diagnosed PCD across Europe, described age at diagnosis and determined risk factors for late diagnosis. Centres treating children with PCD in Europe answered questionnaires and provided anonymous patient lists. In total, 223 centres from 26 countries reported 1,009 patients aged < 20 yrs. Reported cases per million children (for 5-14 yr olds) were highest in Cyprus (111), Switzerland (47) and Denmark (46). Overall, 57% were males and 48% had situs inversus. Median age at diagnosis was 5.3 yrs, lower in children with situs inversus (3.5 versus 5.8 yrs; p < 0.001) and in children treated in large centres (4.1 versus 4.8 yrs; p = 0.002). Adjusted age at diagnosis was 5.0 yrs in Western Europe, 4.8 yrs in the British Isles, 5.5 yrs in Northern Europe, 6.8 yrs in Eastern Europe and 6.5 yrs in Southern Europe (p < 0.001). This strongly correlated with general government expenditures on health (p < 0.001). This European survey suggests that PCD in children is under-diagnosed and diagnosed late, particularly in countries with low health expenditures. Prospective studies should assess the impact this delay might have on patient prognosis and on health economic costs across Europe.
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Affiliation(s)
- C E Kuehni
- Institute of Social and Preventive Medicine (ISPM), University of Berne, Berne, Switzerland
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16
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Kuehni CE, Frischer T, Strippoli MPF, Maurer E, Bush A, Nielsen KG, Escribano A, Lucas JSA, Yiallouros P, Omran H, Eber E, O'Callaghan C, Snijders D, Barbato A. Factors influencing age at diagnosis of primary ciliary dyskinesia in European children. Eur Respir J 2010; 36:1248-58. [PMID: 20530032 DOI: 10.1183/09031936.00001010] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Primary ciliary dyskinesia (PCD) is a hereditary disorder of mucociliary clearance causing chronic upper and lower airways disease. We determined the number of patients with diagnosed PCD across Europe, described age at diagnosis and determined risk factors for late diagnosis. Centres treating children with PCD in Europe answered questionnaires and provided anonymous patient lists. In total, 223 centres from 26 countries reported 1,009 patients aged < 20 yrs. Reported cases per million children (for 5-14 yr olds) were highest in Cyprus (111), Switzerland (47) and Denmark (46). Overall, 57% were males and 48% had situs inversus. Median age at diagnosis was 5.3 yrs, lower in children with situs inversus (3.5 versus 5.8 yrs; p < 0.001) and in children treated in large centres (4.1 versus 4.8 yrs; p = 0.002). Adjusted age at diagnosis was 5.0 yrs in Western Europe, 4.8 yrs in the British Isles, 5.5 yrs in Northern Europe, 6.8 yrs in Eastern Europe and 6.5 yrs in Southern Europe (p < 0.001). This strongly correlated with general government expenditures on health (p < 0.001). This European survey suggests that PCD in children is under-diagnosed and diagnosed late, particularly in countries with low health expenditures. Prospective studies should assess the impact this delay might have on patient prognosis and on health economic costs across Europe.
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Affiliation(s)
- C E Kuehni
- Institute of Social and Preventive Medicine (ISPM), University of Berne, Berne, Switzerland
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17
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Barbato A, Frischer T, Kuehni CE, Snijders D, Azevedo I, Baktai G, Bartoloni L, Eber E, Escribano A, Haarman E, Hesselmar B, Hogg C, Jorissen M, Lucas J, Nielsen KG, O'Callaghan C, Omran H, Pohunek P, Strippoli MPF, Bush A. Primary ciliary dyskinesia: a consensus statement on diagnostic and treatment approaches in children. Eur Respir J 2009; 34:1264-76. [DOI: 10.1183/09031936.00176608] [Citation(s) in RCA: 324] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Velázquez F, Berná JD, Abellán JL, Serrano L, Escribano A, Canteras M. Reproducibility of sonographic measurements of carotid intima-media thickness. Acta Radiol 2008; 49:1162-6. [PMID: 18846454 DOI: 10.1080/02841850802438520] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Carotid intima-media thickness (IMT), measured with B-mode ultrasound, is a marker for atherosclerosis and widely used as an outcome in intervention trials. PURPOSE To evaluate the reproducibility of carotid intima-media thickness measurements using tissue harmonic imaging (THI) sonography between two observers with different levels of experience. MATERIAL AND METHODS IMT measurement was performed in 40 patients: 26 males and 14 females, with a mean age of 62.6 years. The measurements were taken on the posterior wall of the right common carotid artery using a standardized protocol. Observer measurement of the IMT was independent and blind. Statistical analysis was done with parametric tests and Pearson's correlation coefficient. RESULTS The measurements of the IMT were taken satisfactorily in all cases. IMT measurement time was 5 min/study. No significant differences were noted between the means obtained by the two observers. The interobserver correlation of the measurements was very high (97.2%). CONCLUSION The results of this study show that carotid IMT measurement using THI sonography and a standardized protocol is accurate and reproducible.
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Affiliation(s)
- F. Velázquez
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - J. D. Berná
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - J. L. Abellán
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - L. Serrano
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - A. Escribano
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - M. Canteras
- Department of Radiology and Department of Pediatrics, Virgen de la Arrixaca University Hospital, El Palmar, (Murcia), Spain Department of Human Anatomy, Faculty of Medicine, University of Murcia, Murcia, Spain
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Escribano A, Tutuncu A, Löhr I, Carlholm M, Polanowski T. Clinical comparability between the CFC and HFA budesonide pressurised metered-dose inhalers in paediatric patients with asthma: a randomised controlled trial. Curr Med Res Opin 2006; 22:1085-92. [PMID: 16846541 DOI: 10.1185/030079906x104812] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the efficacy and tolerability of a novel hydrofluoroalkane (HFA) pressurised metered dose inhaler (pMDI) formulation of budesonide (Pulmicort) versus the conventional chlorofluorocarbon (CFC) pMDI formulation in paediatric patients with asthma. METHODS This was a Phase III, multicentre, 12-week, double-blind, randomised, parallel-group study involving children (6-12 years of age) with mild to moderate asthma. Patients received either budesonide HFA pMDI or budesonide CFC pMDI 200 mug twice daily, with or without a spacer (NebuChamber/Nebunette). Primary efficacy endpoint: mean percentage change in forced expiratory volume in 1 second (FEV(1)) from baseline to week 12. Secondary efficacy endpoints included changes in FEV(1) per cent of predicted normal, forced vital capacity, morning and evening peak expiratory flow rate, asthma symptoms and use of rescue medication. RESULTS A total of 159 patients received treatment (HFA 77, CFC 82). For mean percentage change in FEV(1) from baseline to week 12, the difference between the treatments (CFC pMDI - HFA pMDI) was -3.1% (95% confidence interval [CI] -8.0% to 1.8%) for the full analysis set and was not affected by spacer use. The upper CI was < 10% (the predefined non-inferiority margin), so non-inferiority was demonstrated. Improvements in the secondary efficacy endpoints with both budesonide formulations were not significantly different. In both groups there were similar numbers of adverse events and no evidence of oral candidiasis at week 12. CONCLUSIONS Treatment with budesonide HFA pMDI is effective and well tolerated in children with asthma and is clinically comparable to budesonide CFC pMDI.
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Affiliation(s)
- A Escribano
- Unidad de Neumologia Infantil, Servicio de Pediatria, Hospital Clinico Universitario, Universidad de Valencia, Valencia, Spain.
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20
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Armengot Carceller M, Carda Batalla C, Escribano A, Samper GJ. [Study of mucociliary transport and nasal ciliary ultrastructure in patients with Kartagener's syndrome]. Arch Bronconeumol 2005; 41:11-5. [PMID: 15676130 DOI: 10.1016/s1579-2129(06)60388-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Kartagener's syndrome (KS) is a clinical variant of primary ciliary dyskinesia involving situs inversus associated with chronic airway infections. The ciliary defect associated with this syndrome is the absence of dynein arms. The aim of this study was to evaluate mucociliary transport and ciliary ultrastructure in 14 patients with KS. PATIENTS AND METHODS We studied nasal mucociliary transport using a radioisotopic technique and ciliary ultrastructure in 14 patients with KS. RESULTS Thirteen patients had mucociliary stasis and 1 had severely slowed transport (1.3 mm/min). Four patients (29%) had cilia with normal dynein arms, 2 patients (14%) had short inner dynein arms, and 8 patients (57.1%) had total absence of inner and outer dynein arms. CONCLUSIONS We conclude that the typical clinical presentation, together with altered mucociliary transport as identified by an isotopic technique, is diagnostic of KS, even when the ciliary ultrastructure is normal. KS is clinically homogenous and morphologically heterogenous.
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Affiliation(s)
- M Armengot Carceller
- Servicio de Otorrinolaringología, Hospital General Universitario, Facultad de Medicina, Valencia, Spain.
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21
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Martínez-Costa C, Escribano A, Núñez Gómez F, García-Maset L, Luján J, Martínez-Rodríguez L. [Nutritional intervention in children and adolescents with cystic fibrosis. Relationship with pulmonary function]. NUTR HOSP 2005; 20:182-8. [PMID: 15989064] [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: 05/03/2023] Open
Abstract
OBJECTIVE To assess the effects of early and continuous nutritional intervention in pediatric patients with cystic fibrosis (CF) and its possible implication in pulmonary function. PATIENTS AND METHODS Included is the follow-up of 19 patients with CF (11 female and 8 male children), from 17 months to 18 years of age, and a mean disease duration of 10 years. Genotype from 16 patients is delta F 508 (10 homozygotic, 6 heterozygotic). The following items have been performed every 2-3 months: clinical, dietary and anthropometrical assessment, classifying nutritional status (NS) by Z scores of weight/height, % of weight to height, body mass index, and Z scores of height/age. Concurrently, respiratory secretions culture and spirometry were obtained; and annually, biochemistry, hematologic and feces determinations. Nutritional intervention included: dietary recommendations, oral or invasive enteral nutrition (EN) and pharmacologic treatment with pancreatic enzymes, fat-soluble vitamins, minerals and oligoelements. RESULTS AND COMMENTARIES: Most of them experienced anthropometrical improvement being significant for weight, the relationship of weight/height and the tricipital fold (p < 0.05). The Z score for height has remained steady. Sixteen patients (84%) have developed exocrine pancreatic failure, and 3 (16%) glucose intolerance. Fourteen (73%) have been colonized by Pseudomonas aeruginosa. Last mean spirometry values were: FVC (%) 85.4 +/- 18.6 and FEV1 (%) 85.9 +/- 24.1, with a significant correlation between % of weight to height and FVC (coefficient 0.552, p = 0.022) and FEV1 (coefficient 0.625, p = 0.007). Seventy nine percent have required some sort of nutritional support: 3 cases (16%) invasive EN, and the remaining oral EN. CONCLUSIONS Without nutritional support, many patients with CF do not seem to meet their demands. EN monitoring allows for and early and effective intervention. A close correlation has been demonstrated between nutritional status and pulmonary function.
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Affiliation(s)
- C Martínez-Costa
- Servicio de Pediatría, Hospital Clínico, Universidad de Valencia, España.
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22
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Armengot Carceller M, Carda Batalla C, Escribano A, Samper G. Estudio del transporte mucociliar y de la ultraestructura ciliar nasales en pacientes con síndrome de Kartagener. Arch Bronconeumol 2005. [DOI: 10.1157/13070275] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Casado E, De Castro J, Castelo B, Sanchez B, Feliu J, Escribano A, García-Olmo D, Redondo A, Belda M Sereno C, Gonzalez Baron M. Phase II study of neoadjuvant treatment of rectal cancer with oxaliplatin, raltitrexed and radiotherapy. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.3746] [Citation(s) in RCA: 3] [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] [Indexed: 11/20/2022] Open
Affiliation(s)
- E. Casado
- Hospital Universitario La Paz, Madrid, Spain
| | | | - B. Castelo
- Hospital Universitario La Paz, Madrid, Spain
| | - B. Sanchez
- Hospital Universitario La Paz, Madrid, Spain
| | - J. Feliu
- Hospital Universitario La Paz, Madrid, Spain
| | | | | | - A. Redondo
- Hospital Universitario La Paz, Madrid, Spain
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Arranz I, Martín-Suárez A, Lanao JM, Mora F, Vázquez C, Escribano A, Juste M, Mercader J, Ripoll E. Population pharmacokinetics of high dose ibuprofen in cystic fibrosis. Arch Dis Child 2003; 88:1128-30. [PMID: 14670788 PMCID: PMC1719401 DOI: 10.1136/adc.88.12.1128] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS To evaluate ibuprofen population pharmacokinetics in a large series of data collected in children with cystic fibrosis (CF) treated with high doses of ibuprofen (59 patients; 2-18 years), and to identify the main causes responsible for the considerable interindividual variability in ibuprofen serum levels. METHODS Blood samples were collected during routine clinical care; serum ibuprofen concentrations were determined by HPLC. Fitting of the concentration/time data to a one compartment kinetic population model was performed by a non-linear mixed effect regression method. RESULTS Body weight, dose, and ibuprofen dosage form (lysinate salt or the free acid form), for elimination clearance (CL/F); and body weight, dose, and fasting status for the apparent distribution volume (Vd/F) proved to be the covariates with influence in the model. The four factors identified helped to explain part of the interindividual variability observed, but the remaining unexplained variability made therapeutic drug monitoring absolutely essential.
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Affiliation(s)
- I Arranz
- Biochemical Service, Ramón y Cajal Hospital, Madrid, Spain.
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25
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Escribano A, García-Grande A, Montañés P, Miralles L, García A. Aerosol orgotein (Ontosein) for the prevention of radiotherapy-induced adverse effects in head and neck cancer patients: a feasibility study. Neoplasma 2002; 49:201-8. [PMID: 12098008] [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: 02/25/2023]
Abstract
Orgotein is an anti-inflammatory superoxide dismutase agent successfully used in treating several inflammatory diseases. It is also used in treating radiation-induced adverse effects in difference malignancies, notably breast, lung, bladder, prostate, cervix, and head and neck cancers. It is administered either topically or parenterally. To our knowledge, it has never been used before for prophylaxis of radiation-induced adverse effects or in aerosol form. Here we report on the results from a feasibility study on aerosol orgotein (Ontosein) for prevention of acute and deferred radiation-induced adverse effects in patients treated for head and neck malignancies. Our results show that aerosol orgotein administered before each radiation therapy session may impart some benefits in both incidence and severity of acute and deferred radiation-induced adverse effects in head and neck cancer patients, when compared with historical controls. In addition, aerosol orgotein administration is easy and convenient for both the patient and the radiotherapist.
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Affiliation(s)
- A Escribano
- Department of Radiation Oncology, La Paz University Hospital, Madrid, 28046 Spain.
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Paniagua JA, López-Miranda J, Escribano A, Berral FJ, Marín C, Bravo D, Paz-Rojas E, Gómez P, Barcos M, Moreno JA, Pérez-Jiménez F. Cerivastatin improves insulin sensitivity and insulin secretion in early-state obese type 2 diabetes. Diabetes 2002; 51:2596-603. [PMID: 12145176 DOI: 10.2337/diabetes.51.8.2596] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.9] [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: 11/13/2022]
Abstract
In a double-blind, placebo-controlled, randomized crossover study, 15 stable mild hyperglycemic patients without treatment and with features of metabolic syndrome were treated with cerivastatin (0.4 mg/day) or placebo for 3 months. The insulin sensitivity index during the euglycemic-hyperinsulinemic clamp (EHC; 5.4 mmol/l; 80 mU x m(-2) x min(-1)) was increased by cerivastatin treatment (66.39 +/- 3.9 nmol x lean body mass [LBM](-1) x min(-1) x pmol(-1) x l(-1)) as compared with placebo (58.37 +/- 3.69 nmol x LBM(-1) x min(-1) x pmol(-1) x l(- 1); P < 0.01) by 13.7%. Glucose oxidation during EHC was significantly higher with statin treatment (16.1 +/- 1.37 micromol x LBM(-1) x min(-1)) as compared with placebo (14.58 +/- 1.48 micromol x LBM(-1) x min(-1); P < 0.05). During hyperinsulinemia (approximately 800 pmol/l) in EHC steady-state, lipid oxidation was significantly decreased and respiratory quotient was significantly increased with statin treatment (0.33 +/- 0.05 mg x LBM(-1) x min(- 1), 0.94 +/- 0.01) as compared with placebo (0.48 +/- 0.06 mg x LBM(-1) x min(-1), 0.91 +/- 0.01; P < 0.01 and P < 0.05, respectively). During statin treatment, the first-phase insulin response increased from 2.07 +/- 0.28 to 2.82 +/- 0.38 pmol x l(-1) x pmol(-1) (P < 0.05). The second phase of insulin responses examined by C-peptide and insulin levels averaged during the hyperglycemic clamp (20 mmol/l) was unchanged. In conclusion, this study demonstrates that 0.4 mg cerivastatin therapy improves first-phase insulin secretion and increases insulin-mediated glucose uptake and respiratory quotient in the early state of obese type 2 diabetes.
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Affiliation(s)
- J A Paniagua
- Lipid and Atherosclerosis Unit, University Hospital Reina Sofía, Cordoba, Spain
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27
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Feliu J, Calvilio J, Escribano A, de Castro J, Sánchez ME, Mata A, Espinosa E, García Grande A, Mateo A, González Barón M. Neoadjuvant therapy of rectal carcinoma with UFT-leucovorin plus radiotherapy. Ann Oncol 2002; 13:730-6. [PMID: 12075741 DOI: 10.1093/annonc/mdf116] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [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: 11/14/2022] Open
Abstract
BACKGROUND The object of this phase II study was to assess the impact of preoperative external radiation therapy combined with UFT and leucovorin on tumor response, sphincter preservation and tumor control in patients with rectal carcinoma. PATIENTS AND METHODS Forty-one patients with resectable extraperitoneal rectal adenocarcinoma received radiation therapy and two courses of chemotherapy. Chemotherapy consisted of a 2-h infusion of 6S-steroisomer of leucovorin (6SLV) 250 mg/m2 on day 1, oral 6SLV 7.5 mg every 12 h on days 2-14, and UFT either 350 or 300 mg/m2 on days 1 to 14 every 28 days. Six additional courses of chemotherapy were given after surgery. RESULTS Seven of 16 patients (43%) who received 350 mg/m2/day of UFT had grade 3-4 diarrhea and two other patients (12%) had grade 3-4 dermatitis. The next 25 patients received 300 mg/m2/day of UFT and only 14% of them had grade 3-4 diarrhea. Surgery consisted of low-anterior resection in 26 patients (63%) and abdominal-perineal amputation in 15 (37%). There were six histological complete responses (15%). Downstaging occurred in 25 patients (63%). The overall survival at 3 years was 90% and the pelvic disease-free survival 92%. CONCLUSIONS Preoperative therapy with radiotherapy and UFT-6SLV downstaged 63% of tumors and allowed a sphincter-preserving procedure in some patients. Toxicity was moderate. This scheme is convenient because of the oral administration of chemotherapy.
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Affiliation(s)
- J Feliu
- Department of Medical Oncology, Hospital La Paz, Madrid, Spain.
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28
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Arizón del Prado JM, Escribano A, Lopez Granados A, Ramirez A, Castillo JC, Romo E, Siles JR, Paulovic D, Concha M, Vallés F, Alados P, Merino C, Segura C, Muñoz MI. The value of oxygen consumption in the prognosis of ambulatory patients suffering from chronic heart failure: its relevance in heart transplantation. Transplant Proc 2002; 34:176. [PMID: 11959237 DOI: 10.1016/s0041-1345(01)02835-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- J M Arizón del Prado
- Heart Transplantation Unit, Department of Anesthesia, Hospital Universitario Reina Sofía, Cordoba, Spain
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29
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Máiz L, Baranda F, Coll R, Prados C, Vendrell M, Escribano A, Gartner S, de Gracia S, Martínez M, Salcedo A, Vázquez C. [SEPAR (Spanish Society of Pneumology and Thoracic Surgery) Guidelines. Guideline for diagnosis and treatment of respiratory involvements in cystic fibrosis]. Arch Bronconeumol 2001; 37:316-24. [PMID: 11562317 DOI: 10.1016/s0300-2896(01)75101-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- L Máiz
- Servicios de Neumología. Hospital Ramón y Cajal. Madrid. España.
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30
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de Gracia J, Máiz L, Prados C, Vendrell M, Baranda F, Escribano A, Gartner S, López-Andreu JA, Martínez M, Martínez MT, Pérez Frías J, Seculi JL, Sirvent J. [Nebulized antibiotics in patients with cystic fibrosis]. Med Clin (Barc) 2001; 117:233-7. [PMID: 11481100 DOI: 10.1016/s0025-7753(01)72070-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- J de Gracia
- Servicio de Neumología, Hospital Universitario Vall d'Hebron, Barcelona, Spain
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31
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Baker SR, Bleakman D, Ezquerra J, Ballyk BA, Deverill M, Ho K, Kamboj RK, Collado I, Domínguez C, Escribano A, Mateo AI, Pedregal C, Rubio A. 4-Alkylidenyl glutamic acids, potent and selective GluR5 agonists. Bioorg Med Chem Lett 2000; 10:1807-10. [PMID: 10969973 DOI: 10.1016/s0960-894x(00)00346-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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
Twenty-four 4-alkylidene glutamic acids were synthesised and tested as potential subtype selective GluR5 and 6 ligands. It was found that a critical size of alkylidene group gave potent and selective GluR5 receptor agonists. LY339624 had Kis of 0.0326 and >100 microM on GluR5 and 6 receptors, respectively.
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Affiliation(s)
- S R Baker
- Eli Lilly and Company Ltd, Lilly Research Centre, Windlesham, Surrey, UK.
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32
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Pedregal C, Collado I, Escribano A, Ezquerra J, Domínguez C, Mateo AI, Rubio A, Baker SR, Goldsworthy J, Kamboj RK, Ballyk BA, Hoo K, Bleakman D. 4-Alkyl- and 4-cinnamylglutamic acid analogues are potent GluR5 kainate receptor agonists. J Med Chem 2000; 43:1958-68. [PMID: 10821708 DOI: 10.1021/jm9911682] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enantiomerically pure (2S,4R)-4-substituted glutamic acids were prepared and tested for homomeric GluR5 and GluR6 kainate subtype receptor affinity. Some of the 4-cinnamyl analogues showed high selectivity and potency (K(i) < 25 nM) for the GluR5 receptors. The greatest selectivity and potency were achieved with the 3-(2-naphthyl)prop-2-enyl compound. This compound, LY339434, has negligible activity at the AMPA and kainate receptors GluR1, -2, -4 and -6. Although, LY339434 shows agonist activity at NMDA receptors in cultural hippocampal neurons (approximate EC(50) of 2.5 microM), we consider that LY339434 should be a useful pharmacological tool for the investigation of the functional role of GluR5 kainate receptors.
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Affiliation(s)
- C Pedregal
- Lilly, S.A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain
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33
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Vázquez I, Gómez-de-Segura IA, Grande AG, Escribano A, González-Gancedo P, Gómez A, Díez R, De Miguel E. Protective effect of enriched diet plus growth hormone administration on radiation-induced intestinal injury and on its evolutionary pattern in the rat. Dig Dis Sci 1999; 44:2350-8. [PMID: 10573386 DOI: 10.1023/a:1026637611298] [Citation(s) in RCA: 28] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adequate nutritional support can enhance the protective action of growth hormone in radiation-induced mucositis. Our aim is to address the evolutionary pattern of radiation injury to the small intestine of rats fed a high-protein diet and treated with growth hormone before irradiation. Male Wistar rats were fed a high-protein diet and killed two, four or seven days after irradiation. Animals were given either growth hormone or saline. The combination of growth hormone and high-protein diet reduced mortality, increased mucosal height and crypt proliferation, and reduced apoptosis from day 2 to day 7 after irradiation. Bacterial translocation was increased in rats fed the high-protein formula. Insulin-like growth factor was reduced by radiation and further reduced by the high-protein diet. The combination of growth hormone and high-protein diet protects from the damage caused by radiation to the bowel and accelerates its recovery. This effect does not seem to be mediated through insulin-like growth factor levels.
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Affiliation(s)
- I Vázquez
- Department of Experimental Surgery, La Paz University Hospital, Madrid, Spain
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34
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Escribano A, Williams T, Goulson D, Cave RD, Chapman JW, Caballero P. Selection of a nucleopolyhedrovirus for control of Spodoptera frugiperda (Lepidoptera: Noctuidae): structural, genetic, and biological comparison of four isolates from the Americas. J Econ Entomol 1999; 92:1079-1085. [PMID: 10582046 DOI: 10.1093/jee/92.5.1079] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) is the principal pest of maize in tropical and subtropical regions of the Americas. Larvae of this species are susceptible to a nucleopolyhedrovirus (NPV) which has attracted interest as a potential biocontrol agent. Four strains of NPV isolated from infected S. frugiperda larvae in the United States, Nicaragua, and Argentina were subjected to a structural, genetic, and biological comparison to select a candidate isolate for use in biocontrol experiments in Mexico and Honduras. All isolates had an occlusion body polyhedrin protein of 32 kDa, but the virions of each isolate differed subtly in the pattern and abundance of certain structural polypeptides revealed by SDS-PAGE analysis. Restriction endonuclease analysis of viral DNA confirmed that these isolates were strains of a single virus species but showed that they were not genetically homogeneous; each isolate could be differentiated from the others using common restriction enzymes. Droplet feeding bioassays indicated that an isolate from Nicaragua (Sf-NIC) and an isolate from the United States (Sf-US) had the highest infectivity when tested against 2nd instars originating from a Honduran S. frugiperda colony. No significant differences were detected in the speed of kill of Sf-NIC (102.7 h), Sf-US (102.3 h) and Sf-AR (103.4 h), whereas that of Sf-2 (97.3 h) was significantly shorter. Additional bioassays of the Sf-NIC isolate against 2nd to 6th instars demonstrated that LC50 values increased with larval stage from 2.03 x 10(5) OBs/ml for 2nd instars to 1.84 x 10(8) OBs/ml for 5th instars. The concentration required to elicit a lethal infection of 6th instars was so high that a reliable estimate of LC50 could not be obtained. The mean time to death for each stage challenged with the Sf-NIC isolate increased with instar from an average of 102.7 h in 2nd instars to 136.9 h in 5th instars.
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Affiliation(s)
- A Escribano
- Departamento de Producción Agraria, Universidad Pública de Navarra, Pamplona, Spain
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35
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Escribano A, Ezquerra J, Pedregal C, Rubio A, Yruretagoyena B, Baker SR, Wright RA, Johnson BG, Schoepp DD. (2S,4S)-amino-4-(2,2-diphenylethyl)pentanedioic acid selective group 2 metabotropic glutamate receptor antagonist. Bioorg Med Chem Lett 1998; 8:765-70. [PMID: 9871538 DOI: 10.1016/s0960-894x(98)00091-2] [Citation(s) in RCA: 27] [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: 11/19/2022]
Abstract
(2S,4S)-2-Amino-4-(4,4-diphenylbut-1-yl)-pentane-1,5-dioic acid 1m, is a novel metabotropic glutamate receptor (mGluR) antagonist with insignificant ionotropic affinity. It is selective antagonist of negatively-coupled cAMP-linked mGluRs with no effect on phosphoinositide coupled mGluRs. A series of 4-substituted glutamic acid analogues were prepared and it was found that compound 1k is tenfold more potent than 1m. Compound 1k has neither significant affinity for ionotropic glutamate receptors nor group 1 and 3 metabotropic receptors.
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Affiliation(s)
- A Escribano
- Centro de Investigación Lilly, Madrid, Spain
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36
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Armengot M, Escribano A, Carda C, Sánchez C, Romero C, Basterra J. Nasal mucociliary transport and ciliary ultrastructure in cystic fibrosis. A comparative study with healthy volunteers. Int J Pediatr Otorhinolaryngol 1997; 40:27-34. [PMID: 9184975 DOI: 10.1016/s0165-5876(97)01490-0] [Citation(s) in RCA: 13] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Cystic fibrosis (CF) is a deadly hereditary disease that produces an abnormally thick, viscous and abundant secretion in the respiratory tract. This secretion in turn leads to the development of recurrent respiratory infections and irreversible lung damage. We have studied nasal mucociliary transport by means of an isotopic technique in 12 patients with CF and in 12 healthy volunteers. Nasal mucociliary transport was repeated at 12-18 months in the patients. In five randomly selected patients ciliary ultrastructure was studied. The velocity of nasal mucociliary transport was significantly slower than in healthy persons (P < 0.001) and no significant differences were observed in both studies (P < 0.05). No significant differences were either observed in the CF group between the homo- and heterozygotes (P < 0.5), or in those six patients infected by Pseudomonas aeruginosa (P < 0.05). Ciliary ultrastructure was normal in one patient. In another patient the sample showed no cilia, while the remaining three exhibited changes similar to those observed in chronic respiratory infections: supernumerary peripheral tubules, ciliary disorientation and ciliary complexes.
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Affiliation(s)
- M Armengot
- ENT Department, University General Hospital and Medical School, Valencia, Spain
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37
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Escribano A, Revilla M, Hernández ER, Seco C, González-Riola J, Villa LF, Rico H. Effect of lead on bone development and bone mass: a morphometric, densitometric, and histomorphometric study in growing rats. Calcif Tissue Int 1997; 60:200-3. [PMID: 9056171 DOI: 10.1007/s002239900214] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The effect of exposure to lead on the longitudinal development of bone and on bone mass was studied in rats. A group of 35, 50-day-old female Wistar rats was divided into a control group of 15 rats and an experimental group of 20 rats fed a diet supplemented with 17 mg of lead acetate per kg feed for 50 days. Total body bone densitometry (TBBMC) was performed the day before ending the 50-day experiment. On day 50, all rats were killed and their right femur and 5th lumbar vertebra were dissected. The bones were cleaned of soft tissue and femoral length and vertebral length were measured with a caliper and all bones were weighed on a precision scale. Final body weight (P < 0.05), TBBMC (P < 0.005), and femur weight (P < 0.005) were significantly lower in the control group. Femur length did not differ between groups, but the length of the 5th lumbar vertebra was greater in the control group (P < 0.05). Histomorphometry of the femur showed that Cn-BV/TV, Tb-N, Tb-Th were lower (P < 0.05 in all) and Tb-Sp was higher (P < 0.05) in the group given the lead-supplemented diet. These findings suggested lead-induced inhibition of axial bone development and a histomorphometric decrease in bone mass, produced mainly by enhanced resorption, and a densitometric increase in bone mass, produced by lead accumulation in bone.
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Affiliation(s)
- A Escribano
- Department of Medicine, University of Alcala de Henares, Madrid, Spain
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38
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González-Riola J, Hernández ER, Escribano A, Revilla M, Villa LF, Rico H. Effect of lead on bone and cartilage in sexually mature rats: a morphometric and histomorphometry study. Environ Res 1997; 74:91-93. [PMID: 9339220 DOI: 10.1006/enrs.1997.3760] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The effect of exposure to lead on the longitudinal development of the femur and of its cartilage growth plate was studied in rats. A group of forty-five 50-day-old female Wistar rats was divided into a control group of 20 rats and an experimental group of 25 rats fed a diet supplemented with 17 mg of lead acetate per kilogram of feed for 50 days. On Day 50 all rats were killed and their right femurs were dissected. The femurs were cleaned of soft tissue and femoral lengths were measured with a Vernier caliper and thickness of growth cartilage (GPC-Th micron) by histomorphometry. Final body weights were significantly (P < 0.05) lower in the control group than in the rats given the lead-supplemented diet. Femur length did not differ between groups. Histomorphometry of the femur showed that the thickness of growth cartilage was higher (P < 0.05) in the control group. These findings suggested lead-induced inhibition of growth plate development. The growth plate may be one of the key target tissues accounting for the adverse effects of chronic lead exposure on skeletal development.
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Affiliation(s)
- J González-Riola
- Department of Medicine, University of Alcalá de Henares, Madrid, Spain
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39
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Armengot M, Escribano A, Carda C, Basterra J. Clinical and ultrastructural correlations in nasal mucociliary function observed in children with recurrent airways infections. Int J Pediatr Otorhinolaryngol 1995; 32:143-51. [PMID: 7657468 DOI: 10.1016/0165-5876(95)01133-v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A study was made of 106 children between 1 and 15 years of age (mean 6 years) with recurrent upper and lower airways infections since birth. Nasal mucociliary transport (NMT) velocity was determined in all subjects by the Tc99m-labeled seroalbumin technique. In 42 children, NMT was found to be altered. In this group of patients the technique was repeated in a period of between 1 and 2 years later. In 23 cases (55%) transport had normalized, while in 19 (45%) it remained altered. Recurrent pneumonia and constant rhinorrhea were more frequent in this group. Situs inversus was only detected in 2 of these patients. Pathology showed ciliary ultrastructure, the absence of dynein arms and microtubule alterations. The absence of cilia was observed in some patients. Normal cilia were also encountered in children with persistently altered nasal mucociliary transport.
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Affiliation(s)
- M Armengot
- ENT Department, Valencia University General Hospital, Spain
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40
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Abstract
The diagnosis of primary ciliary dyskinesia (PCD) depends on electron microscopic examination of cilia obtained from mucosal biopsies of the nasal turbinates or the trachea. This is an invasive, time-consuming, and expensive technique. The low incidence of this abnormality, the large number of infants and children with suggestive symptoms, and the lack of a reliable screening test make the decision to proceed with diagnostic biopsy a common problem in recurrent or chronic respiratory pediatric conditions. To improve this situation early in infancy, nasal mucociliary transport was evaluated in 10 normal newborns using the Tc-99m-labeled seroalbumin technique, and the results obtained were compared with those corresponding to a newborn with Kartagener's syndrome. Transport velocity in normal newborns was similar to that observed in older children and in adults, in contrast to the tracer immobility seen in the affected newborn. This technique is simple, safe, objective, and well tolerated in this age group and might be used as an early screening test to ruling out PCD.
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Affiliation(s)
- A Escribano
- Department of Pediatrics, Valencia University Clinic, Spain
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41
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Blanco J, Blanco M, Blanco JE, Alonso MP, Escribano A. [Pathogenesis, epidemiology, and microbiologic diagnosis of infections caused by verotoxin-producing enterohemorrhagic Escherichia coli]. Enferm Infecc Microbiol Clin 1993; 11:324-34. [PMID: 8347705] [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: 01/30/2023]
Affiliation(s)
- J Blanco
- Departamento de Microbiología, y Parasitología, Facultad de Veterinaria, Universidad de Santiago de Compostela, Campus de Lugo
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42
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Escribano A, Berral F, Delgado C, Gallardo A, Ocana J, Leiva A, Alonso J. Resting vital capacity and maximum ventilation (VE-Max) in the aerobic-anaeroby transition zone during the maximum oxigen volume (VO2- MAX) in juvenile basketball players. J Biomech 1992. [DOI: 10.1016/0021-9290(92)90325-u] [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: 11/17/2022]
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43
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Berral F, Escribano A, Berral C, Alonso J, DeRose E. Proposed corrections in the KERR method on estimating total body weight and calculating muscle mass in athletes. J Biomech 1992. [DOI: 10.1016/0021-9290(92)90317-t] [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: 11/15/2022]
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44
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Armengot M, Escribano A, Garín L, Barona R, Basterra J. [Nasal mucociliary function in children with recurrent infections of the airways]. Acta Otorrinolaringol Esp 1991; 42:458-60. [PMID: 1790068] [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: 12/28/2022]
Abstract
Nasal mucociliary function has been studied in 21 children suffering recurrent airway infections. Previously, cystic fibrosis, immune deficits and allergy were discharged. 38 per cent of these patients had alterations in the mucociliary transport and in this group, it was observed an increase of bronchiectasis, permanent rhinorrhea and serous otitis media.
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Affiliation(s)
- M Armengot
- Hospital General Universitario de Valencia, Servicio de Otorrinolaringología, Facultad de Medicina de Valencia
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45
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Buesa FJ, García-Verdú R, Pastor M, Escribano A. [Evaluation of methods for the detection of syncytial respiratory virus in nasopharyngeal secretions]. Enferm Infecc Microbiol Clin 1990; 8:78-81. [PMID: 2098144] [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: 12/30/2022]
Abstract
The screening for respiratory syncytial virus (RSV) in nasopharyngeal secretions with enzyme immunoassay (ELISA) and indirect immunofluorescence (IIF) has been evaluated in infants and young children with acute respiratory infection. Both methods were compared with viral isolation in HEp-2 cells and the investigation of fluorescent foci in cell cultures inoculated by centrifugation. 226 samples were evaluated by IFF, 182 of which were also evaluated by ELISA while 158 were inoculated into cell cultures. 20.35% of samples were positive with IFF and 19.23% with ELISA. Isolation of RSV was obtained in 25 of the samples inoculated into HEp-2 cells (15.8%). The cytopathic effect took a mean of 5.4 days to develop. The investigation of fluorescent foci in centrifugated cultures allowed to detect 76% of positive samples 24 hours after centrifugation and 84% of positive samples 48 hours after it. Considering the viral isolation as the reference method, IIF and ELISA had a 88% and 76% sensitivity, respectively, with very similar specifities (90.2% and 91.7%).
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Affiliation(s)
- F J Buesa
- Departamento de Microbiología, Facultad de Medicina, Universidad de Valencia
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46
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Abstract
Enterotoxigenic Escherichia coli (ETEC) strains belonging to a characteristic serobiotype, O153:H45 ST+, were isolated from an outbreak of neonatal diarrhoea in Valencia, Spain. The restriction of the geographical location of this clone to South America and Spain is discussed.
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Affiliation(s)
- A Escribano
- Department of Pediatrics, Medical School, Valencia, Spain
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47
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Escribano A, Martínez Costa C, Brines J, Nogueira JM, Borrás R, Lloret J, Hernández R. [Treatment of type-b H. influenzae meningitis resistant to ampicillin and chloramphenicol]. An Esp Pediatr 1983; 19:444-51. [PMID: 6320700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Three cases of H. influenzae type b meningitis with resistance to ampicillin and cloramphenicol are described. All infants were treated with new cephalosporin derivates. CSF sterilization was achieved in all patients. Clinical evolution was good in the two old infants treated with cefotaxime, nevertheless younger infant treated with cephoxitin developed serious neurologic and psychologic sequelae. H. influenzae b was erradicated of a carrier mother after four days of rifampicin therapy. Finding of multiple-resistance H. influenzae type b meningitis and therapeutics problems are emphasized by authors.
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48
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Borrajo E, Alpera R, Donat J, Escribano A, Colomer C, Plasencia A, López MJ. [Immunity in hypothyroid children (author's transl)]. An Esp Pediatr 1982; 16:369-76. [PMID: 6981366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
For a long time investigators have focused attention on the relationship between specific immunity and hormones. In the present paper, authors investigated on 26 children, 9 males and 17 females, from 9 months to 14 and 10/12 years old, with primary hypothyroidism. All patients were in substitutive treatment. The following studies were done to all the patients: serum IgG, IgA, IgM and complement. Blood lymphocyte counts, percentages of B and T lymphocytes, as well as the response of lymphocytes to PHA. Skin tests were also carried out: tuberculin, candidin and streptokinase-streptodornase. All results obtained in both, hypothyroid and control groups fell within the range of normal age-matched values for our laboratory, and by results of statistics studies carried out they were considered of little significance, except the percentage of circulating B lymphocytes that was lower in hypothyroid group (p less than or equal to 0.01).
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Bascuas S, Román P, Trigo JE, Bueno A, Escribano A, Bascuas JL. [Varicella pneumonia. Report of a case in a child (author's transl)]. J Radiol 1982; 63:201-2. [PMID: 6955521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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50
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López MJ, Escribano A, Brines J, Colomer J. [Glycogenosis type I. Therapy (author's transl)]. An Esp Pediatr 1980; 13:689-699. [PMID: 6933881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Two new patients of glucogenosis type I, fed with a special diet, are described. Various indicated treatments to correct metabolic alterations of the disease were revised (diet, drugs, surgery). Different forms of therapy are compared according with results obtained. Metabolic acidosis and hypoglycemia improved. Growing rate and hyperlypemia did not improved. Uricemic acid levels with alopurinol got normal. Possible implications of this results are discussed.
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