1
|
Triantafilo N, Sarmiento M, Campbell J, Rojas P, García MJ, Sandoval V, Bertín P, Ocqueteau M, Risueño MC, Rodríguez I, Galleguillos M. [Acute myeloid leukemia. Analysis of 114 patients]. Rev Med Chil 2022; 150:643-649. [PMID: 37906765 DOI: 10.4067/s0034-98872022000500643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/21/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND Acute myeloid leukemia (AML) is the most common leukemia in adults. AIM To Describe our population of patients with AML and report the outcomes of our treatments. MATERIAL AND METHODS Review of electronic clinical records of 114 patients with AML with a median age of 57 years (59% men). RESULTS Seventeen percent of patients were classified as low risk, 38% as intermediate risk and 33% as high risk. Seventy-six percent of patients were treated with intensive chemotherapy. Five years overall survival according to cytogenetic risk was 59, 41, and 12% in low, intermediate, and high-risk patients, respectively. The outcomes were better in patients under 60 years. The median survival of patients treated with intensive chemotherapy aged less than 60 years and 60 years and above was 3.4 and 1 year, respectively. CONCLUSIONS Our results are comparable to those reported in developed countries. Improving the survival of patients 60 years and older is our main challenge.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Pablo Bertín
- Hematología, Red de Salud UCChristus, Santiago, Chile
| | | | | | - Isabel Rodríguez
- Laboratorio de Hematología, Red de Salud UC-Christus, Santiago, Chile
| | | |
Collapse
|
2
|
Moreno-Martínez S, Tendilla H, Sandoval V, Flores G, Terrón JA. Chronic restraint stress induces anxiety-like behavior and remodeling of dendritic spines in the central nucleus of the amygdala. Behav Brain Res 2021; 416:113523. [PMID: 34390801 DOI: 10.1016/j.bbr.2021.113523] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/15/2021] [Accepted: 08/09/2021] [Indexed: 01/21/2023]
Abstract
Previous studies have shown that the anxiogenic effects of chronic stress do not correlate with dendritic remodeling in the central nucleus of the amygdala (CeA). We analyzed the effect of chronic restraint stress (CRS; 20 min/day for 14 days), relative to control (CTRL) conditions on anxiety-like behavior in the elevated plus maze (EPM) and the open field tests, and dendritic morphology, dendritic spine density and spine type numbers in pyramidal neurons of the CeA. Reversal of CRS-induced effects was explored in animals allowed a 14-day stress-free recovery after treatments. CRS decreased the frequency and time in the open arms and increased the anxiety index in the EPM, and reduced visits and time in the center of the open field. Morphological assays in these animals revealed no effect of CRS on dendritic complexity in CeA neurons; however, a decrease in dendritic spine density together with decreased and increased amounts of mushroom and thin spines, respectively, was detected. Subsequent to a stress-free recovery, a significant reduction in open arm entries together with an increased anxiety index was detected in CRS-exposed animals; open field parameters did not change significantly. A decreased density of total dendritic spines, in parallel with higher and lower numbers of thin and stubby spines, respectively, was observed in CeA neurons. Results suggest that CRS-induced anxiety-like behavior might be accounted for by a reduction in synaptic connectivity of the CeA. This effect, which is long lasting, could mediate the persisting anxiogenic effects of chronic stress after exposure to it has ended.
Collapse
Affiliation(s)
- Saidel Moreno-Martínez
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), México City, Mexico
| | - Hiram Tendilla
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, Puebla, Pue., Mexico
| | - Vicente Sandoval
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México D. F., Mexico
| | - Gonzalo Flores
- Instituto de Fisiología, Benemérita Universidad Autónoma de Puebla, Puebla, Pue., Mexico
| | - José A Terrón
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), México City, Mexico.
| |
Collapse
|
3
|
Sarmiento M, Rojas P, Triantafilo N, Campbell J, García MJ, Ocqueteau M, Sandoval V, Rojas A, Gazmuri JT, Guerrero G, Vergara M, Bertin P, Ramírez P, Jara V, Gutiérrez C, Soto K, Arellano S, Pizarro I, Lorca C. [Age does not affect the outcome of allogeneic hematopoietic precursor transplantation for acute myeloid leukemia]. Rev Med Chil 2021; 149:22-29. [PMID: 34106132 DOI: 10.4067/s0034-98872021000100022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 11/23/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND In our country, transplantation centers differ in the age limit for allogeneic hematopoietic transplantation (ALOHT). In our program, transplants with age- adjusted conditioning are performed in patients until 70 years old. Currently more than 60% of ALOHT reported to the Center for International Bone Marrow Transplantation Research (CIBMTR) are performed in patients older than 40 years. AIM To report our experience with ALOHT in acute myelogenous leukemia (AML), analyzing patient age at transplantation in different periods and transplant results in different age groups. MATERIAL AND METHODS A retrospective analysis of the database of adult hematopoietic transplants in AML patients was performed. Demographic data, disease characteristics, transplant data, survival and relapse times, and mortality were collected. RESULTS In our program, 1030 transplants were performed in adults and 119 ALOHT were performed in AML patients, between 1990 and 2020. The median age of patients in all periods was 41 years, (range 16-69). The median age was 33 and 45 years, in the periods 1990-2000 and 2000-2020 respectively (p < 0.01). Seventy-eight patients received myeloablative conditioning (median age 44 years) and 41 reduced intensity conditioning (median age 53 years). Five-year overall survival was 44.6% (confidence intervals (CI) 41-48). Non relapse mortality of all periods was 19% (CI 17 - 40%) and relapse rate was 17 % (CI 16-22). No difference in five years overall survival among patients younger than 40, 41 to 50 and over 51 years was observed. CONCLUSIONS Overall Survival, non-relapse mortality and relapse rate were similar in younger and older patients in our program and similar to those previously reported in other centers.
Collapse
Affiliation(s)
- Mauricio Sarmiento
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Patricio Rojas
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nicolás Triantafilo
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - James Campbell
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - María José García
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mauricio Ocqueteau
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Vicente Sandoval
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andrés Rojas
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - José Tomás Gazmuri
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gonzalo Guerrero
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Maximiliano Vergara
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Bertin
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Ramírez
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Verónica Jara
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catherine Gutiérrez
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Katherine Soto
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Silvana Arellano
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Isabel Pizarro
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carla Lorca
- Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| |
Collapse
|
4
|
Juza RM, Docimo S, Drexel S, Sandoval V, Marks JM, Pauli EM. Endoscopic rescue of early percutaneous endoscopy gastrostomy tube dislodgement. Surg Endosc 2021; 35:1915-1920. [PMID: 33398579 DOI: 10.1007/s00464-020-08203-1] [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: 08/25/2020] [Accepted: 11/19/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND Percutaneous endoscopic gastrostomy (PEG) tube placement is one of the most common methods for establishing durable enteral access. Early PEG dislodgement occurs in < 5% of cases but typically prompts urgent surgical intervention to reestablish the gastrocutaneous tract and prevent intra-abdominal sepsis. To date, there is a single case report in the literature where successful endoscopic "rescue" of an early dislodged PEG tube negated the need for operative intervention. Here, we report our experience with a series of endoscopic PEG rescues for early dislodged PEG tubes. METHODS A retrospective analysis of cases was reviewed from two institutions. Patients with early PEG dislodgements underwent PEG rescue using a gastroscope and standard Ponsky "Pull" PEG techniques through the original tract. RESULTS Eleven patients were identified from the database and underwent PEG rescue after early PEG dislodgement. Mean operative time was 68 min, and there were no complications related to PEG rescue. PEG rescue permitted safe re-establishment of the gastrostomy tract while avoiding laparoscopic or open surgical intervention in hemodynamically stable patients. All patients tolerated the procedure well and were able to resume use of the PEG tubes shortly after intervention. CONCLUSION Endoscopic rescue represents a feasible noninvasive option for PEG tube replacement following early inadvertent PEG tube dislodgement in appropriate clinical settings.
Collapse
Affiliation(s)
- R M Juza
- Division of General Surgery, Department of Surgery, University Hospitals, Cleveland Medical Center, Cleveland, OH, USA.
| | - S Docimo
- Division of Bariatric, Foregut, and Advanced Gastrointestinal Surgery, Department of Surgery, Stony Brook Medicine, Stony Brook, NY, USA
| | - S Drexel
- Division of General Surgery, Department of Surgery, University Hospitals, Cleveland Medical Center, Cleveland, OH, USA
| | | | - J M Marks
- Division of General Surgery, Department of Surgery, University Hospitals, Cleveland Medical Center, Cleveland, OH, USA
| | - E M Pauli
- Division of Minimally Invasive and Bariatric Surgery, Department of Surgery, Penn State Hershey Medical Center, Hershey, PA, USA
| |
Collapse
|
5
|
Chmutina K, von Meding J, Sandoval V, Boyland M, Forino G, Cheek W, Williams DA, Gonzalez-Muzzio C, Tomassi I, Páez H, Marchezini V. What We Measure Matters: The Case of the Missing Development Data in Sendai Framework for Disaster Risk Reduction Monitoring. Int J Disaster Risk Sci 2021; 12:779-789. [PMCID: PMC8602989 DOI: 10.1007/s13753-021-00382-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/05/2021] [Indexed: 06/28/2023]
Abstract
The Sendai Framework for Disaster Risk Reduction 2015−2030’s (SFDRR) framing moved away from disaster risk as a natural phenomenon to the examination of the inequality and injustice at the root of human vulnerability to hazards and disasters. Yet, its achievements have not seriously challenged the long-established capitalist systems of oppression that hinder the development leading to disaster risk creation. This article is an exploratory mapping exercise of and a collective reflection on Sustainable Development Goals (SDGs) and SFDRR indicators—and their use in measuring progress towards disaster risk reduction (DRR). We highlight that despite the rhetoric of vulnerability, the measurement of progress towards DRR remains event/hazard-centric. We argue that the measurement of disaster risk could be greatly enhanced by the integration of development data in future iterations of global DRR frameworks for action.
Collapse
Affiliation(s)
- Ksenia Chmutina
- School of Architecture, Building and Civil Engineering, Loughborough University, Loughborough, LE11 3TU UK
| | - Jason von Meding
- Florida Institute of Built Environment Resilience, University of Florida, Gainesville, FL 32661 USA
| | - Vicente Sandoval
- Disaster Research Unit (DRU), Freie Universität Berlin, 12165 Berlin, Germany
| | - Michael Boyland
- Stockholm Environment Institute Asia, Bangkok, 10330 Thailand
| | - Giuseppe Forino
- School of Geography, University of Nottingham, Nottingham, NG7 2RD UK
| | - Wesley Cheek
- Institute of Disaster Mitigation for Urban Cultural Heritage, Ritsumeikan University, Kyoto, 603-8341 Japan
| | - Darien Alexander Williams
- Department of Urban Studies and Planning, Massachusetts Institute of Technology (MIT), Cambridge, MA 02142 USA
| | | | - Isabella Tomassi
- Laboratoire Triangle Lyon, École Normale Supérieure de Lyon, 69342 Rhône-Alpes, France
| | - Holmes Páez
- Department of Civil Engineering, Pontificia Universidad Javeriana, 110231 Bogota, Colombia
| | - Victor Marchezini
- National Centre for Monitoring and Warning of Natural Disasters (CEMADEN), São José dos Campos, SP 12247016 Brazil
| |
Collapse
|
6
|
Olmos LH, Colque Caro LA, Avellaneda-Cáceres A, Medina DM, Sandoval V, Aguirre DH, Micheloud JF. First record of clinical coccidiosis (Eimeria ovinoidalis) in adult sheep from northwestern Argentina. Vet Parasitol Reg Stud Reports 2020; 21:100429. [PMID: 32862909 DOI: 10.1016/j.vprsr.2020.100429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/24/2020] [Accepted: 06/27/2020] [Indexed: 11/16/2022]
Abstract
Coccidiosis of sheep is an intestinal infection caused by protozoa of the genus Eimeria. An outbreak of the disease in adult sheep from Salta province, northwestern Argentina, was studied to establish its clinical, epidemiological, pathological and etiological aspects. The affected animals were part of a flock of 20 sheep brought from Formosa province about 10 days before. Most sheep (80% incidence) showed hemorrhagic diarrhea, dehydration and loss of body condition; six of them died and two that became permanently recumbent were euthanized. Three necropsied sheep showed mild mesenteric lymphadenomegaly, diffuse proliferative enteritis in the small and large intestines, and mucosal thickening. Histopathological studies exhibited diffuse proliferative enteritis and presence of structures compatible with intracellular coccidia at different stages of development. Parasitological studies (n = 12) resulted in an average of 16,636.6 (± 15,266.8) Eimeria oocysts per gram of feces (range 1680-46,400). Taxonomy of Eimeria species based on analysis of sporulated oocysts derived from 4 fecal samples (n = 100 oocyst per sample) showed, on average, a high prevalence of E. ovinoidalis (61.5%), followed by E. parva (27.2%), and lower proportions of E. crandallis (5.3%), E. ahsata (3.2%) and E. intricata (2.8%). Clinical and pathological findings confirmed the diagnosis of coccidiosis in the affected sheep; parasitological results showed that E. ovinoidalis was the main species responsible for the clinical signs. Clinical coccidiosis is considered unusual in adult sheep, but the present case shows that under favorable environmental and/or management conditions, this infection may be highly deleterious for adult sheep.
Collapse
Affiliation(s)
- L H Olmos
- Instituto Nacional de Tecnología Agropecuaria (INTA), CIAP, Instituto de Investigación Animal del Chaco Semiárido, Área de Investigación en Salud Animal, EEA Salta, Salta, Argentina; Facultad de Ciencias Agrarias y Veterinarias, Universidad Católica de Salta, Argentina.
| | - L A Colque Caro
- Instituto Nacional de Tecnología Agropecuaria (INTA), CIAP, Instituto de Investigación Animal del Chaco Semiárido, Área de Investigación en Salud Animal, EEA Salta, Salta, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), EEA Salta, Salta, Argentina
| | - A Avellaneda-Cáceres
- Facultad de Ciencias Agrarias y Veterinarias, Universidad Católica de Salta, Argentina
| | - D M Medina
- Facultad de Ciencias Agrarias y Veterinarias, Universidad Católica de Salta, Argentina
| | - V Sandoval
- Facultad de Ciencias Agrarias y Veterinarias, Universidad Católica de Salta, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), EEA Salta, Salta, Argentina
| | - D H Aguirre
- Instituto Nacional de Tecnología Agropecuaria (INTA), CIAP, Instituto de Investigación Animal del Chaco Semiárido, Área de Investigación en Salud Animal, EEA Salta, Salta, Argentina
| | - J F Micheloud
- Instituto Nacional de Tecnología Agropecuaria (INTA), CIAP, Instituto de Investigación Animal del Chaco Semiárido, Área de Investigación en Salud Animal, EEA Salta, Salta, Argentina; Facultad de Ciencias Agrarias y Veterinarias, Universidad Católica de Salta, Argentina
| |
Collapse
|
7
|
Sandoval V, Sarmiento JP. Una mirada desde la gobernanza del riesgo y la resiliencia urbana en América Latina y el Caribe: Los asentamientos informales en la Nueva Agenda Urbana. REDER 2018. [DOI: 10.55467/reder.v2i1.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
El trabajo busca ofrecer una vista general, actualizada, pero también crítica de los asentamientos informales en América Latina y el Caribe, e identificar y explorar posibles tendencias entre los diferentes países con respecto a la gobernanza y resiliencia urbana para la reducción del riesgo de desastre en estos asentamientos. Se analizaron datos entregados por 17 países en sus reportes nacionales elaborados durante el proceso preparatorio hacia Habitat III: Argentina, Barbados, Bolivia, Brasil, Chile, Colombia, Costa Rica, Cuba, República Dominicana, Ecuador, Guatemala, Honduras, Jamaica, México, Paraguay, Perú y Uruguay. Se estimaron variables cuantitativas como el acceso al agua potable y alcantarillado junto al análisis cualitativo de contenido tales como referencias al Marco de Sendai y políticas públicas para los asentamientos. Los resultados muestran importantes contrastes en la región, variando significativamente el porcentaje de la población urbana viviendo en condiciones de inseguridad. En términos de gobernanza, prevalece la tendencia de los países a reconocer la importancia de un entorno propicio para el desarrollo urbano a través de estructuras territoriales y sectoriales que articulen vertical y horizontalmente a los diferentes actores. Pese a estas declaraciones, la evidencia entregada al respecto se limita a la articulación vertical de los actores públicos.
Collapse
|
8
|
Troitiño C, Adrover M, Calizaya G, Lares J, Durigan V, Sandoval V, Marcaida P, Scarafia S, Duarte V, Secco A, Mamani M. AB0993 Depressive Symptoms in Patients Consulting for The First Time A Rheumatology Service. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2559] [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: 11/04/2022]
|
9
|
Sandoval V, Boano C, González-Muzzio C, Albornoz C. Explorando potenciales vínculos entre resilencia y justicia ambiental: el caso de Chaitén, Chile. Magallania 2015. [DOI: 10.4067/s0718-22442015000300004] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
10
|
Rodríguez AE, Robledo C, García JL, González M, Gutiérrez NC, Hernández JA, Sandoval V, García de Coca A, Recio I, Risueño A, Martín-Núñez G, García E, Fisac R, Conde J, de Las Rivas J, Hernández JM. Identification of a novel recurrent gain on 20q13 in chronic lymphocytic leukemia by array CGH and gene expression profiling. Ann Oncol 2012; 23:2138-2146. [PMID: 22228453 DOI: 10.1093/annonc/mdr579] [Citation(s) in RCA: 12] [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: 10/06/2023] Open
Abstract
BACKGROUND The presence of genetic changes is a hallmark of chronic lymphocytic leukemia (CLL). The most common cytogenetic abnormalities with independent prognostic significance in CLL are 13q14, ATM and TP53 deletions and trisomy 12. However, CLL displays a great genetic and biological heterogeneity. The aim of this study was to analyze the genomic imbalances in CLL cytogenetic subsets from both genomic and gene expression perspectives to identify new recurrent alterations. PATIENTS AND METHODS The genomic imbalances and expression levels of 67 patients were analyzed. The novel recurrent abnormalities detected with bacterial artificial chromosome array were confirmed by FISH and oligonucleotide microarrays. In all cases, gene expression profiling was assessed. RESULTS Copy number alterations were identified in 75% of cases. Overall, the results confirmed FISH studies for the regions frequently involved in CLL and also defined a new recurrent gain on chromosome 20q13.12, in 19% (13/67) of the CLL patients. Oligonucleotide expression correlated with the regions of loss or gain of genomic material, suggesting that the changes in gene expression are related to alterations in copy number. CONCLUSION Our study demonstrates the presence of a recurrent gain in 20q13.12 associated with overexpression of the genes located in this region, in CLL cytogenetic subgroups.
Collapse
Affiliation(s)
- A E Rodríguez
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - C Robledo
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - J L García
- Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL)-HUSAL, Castill y León
| | - M González
- Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca
| | - N C Gutiérrez
- Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca
| | - J A Hernández
- Department of Hematology, Hospital Infanta Leonor, Madrid
| | - V Sandoval
- Department of Hematology, Hospital Virgen Blanca, León
| | - A García de Coca
- Department of Hematology, Hospital Clínico Universitario, Valladolid
| | - I Recio
- Department of Hematology, Hospital Nuestra Señora de Sonsoles, Ávila
| | - A Risueño
- Bioinformatics and Functional Genomics, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - G Martín-Núñez
- Department of Hematology, Hospital Virgen del Puerto, Plasencia
| | - E García
- Genomics and Proteomics Unit, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - R Fisac
- Department of Hematology, Hospital General de Segovia, Segovia
| | - J Conde
- Department of Hematology, Hospital del Río Hortega, Valladolid, Spain
| | - J de Las Rivas
- Bioinformatics and Functional Genomics, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca
| | - J M Hernández
- IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca-CSIC, Salamanca; Department of Hematology, Hospital Clínico Universitario de Salamanca, Salamanca.
| |
Collapse
|
11
|
Julia A, Kovaleva L, Loria S, Alberca I, Hernandez F, Sandoval V, Sierra J, Vidaller A, Ayguasanosa J, Carretero M. Clinical efficacy and safety of Flebogammadif®, a new high-purity human intravenous immunoglobulin, in adult patients with chronic idiopathic thrombocytopenic purpura. Transfus Med 2009; 19:260-8. [DOI: 10.1111/j.1365-3148.2009.00945.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
12
|
Tejada J, Hernández-Echebarría L, Sandoval V, Mostaza JL. [Cerebral ischemia as first manifestation of paroxysmal nocturnal hemoglobinuria]. Neurologia 2007; 22:471-4. [PMID: 17853967] [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: 05/17/2023] Open
Abstract
INTRODUCTION Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired clonal disease characterized by chronic intravascular hemolysis, cytopenia and increased tendency to thrombosis. Arterial thrombosis has been observed in patients with PNH but is uncommon compared with venous thrombosis. Cerebral arterial thrombosis has been anecdotally described as the first clinical manifestation of PNH. CASE DESCRIPTION We present the case of a 48-yearold male who was admitted because of high-grade fever and infarction in the left middle cerebral artery territory. Other associated findings were mild anemia (hemoglobin level: 10.1 g/dl), renal ischemia and intra-abdominal venous thrombosis. Recurrent arterial and venous thromboembolic events were observed during his hospital stay. The diagnosis of PNH was confirmed by flow cytometric analysis. CONCLUSIONS PNH is a rare cause of cerebral ischemia and it should be considered in stroke patients with abnormal blood findings or marked prothrombotic tendency. We discuss the treatment guidelines and prevention of thrombotic complications.
Collapse
Affiliation(s)
- J Tejada
- Sección de Neurología, Hospital de León, Complejo Asistencial de León-Sacyl, León.
| | | | | | | |
Collapse
|
13
|
Grau J, Ribera JM, Tormo M, Indiano JM, Vercher J, Sandoval V, Ramírez G, Sastre A, Flores E, García-Conde J. [Results of treatment with 2-chlorodeoxyadenosine in refractory or relapsed Langerhans cell histiocytosis. Study of 9 patients]. Med Clin (Barc) 2001; 116:339-42. [PMID: 11333766 DOI: 10.1016/s0025-7753(01)71821-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND To analyse the results of the treatment with 2-chlorodeoxyadenosine (2CdA) in 9 patients with refractory or relapsed Langerhans cell histiocytosis (LCH) tracted in 8 Spanish hospitals between 1993 and 1999. PATIENTS AND METHOD In the 9 patients the following data were recorded: age, sex, organ involvement by LCH, first treatment and response, dose, number of cycles and schedule of administration 2CdA, response to 2CdA treatment, toxicity, disease-free survival (DFS) and overall survival (OS). RESULTS Median age was 25 years (range, 6-63). All patients had multiorganic involvement by LCH, with severe organ dysfunction in 4. 2CdA was administered as second line treatment in 7 cases and as third line in 2. The 2CdA dose was 0.1 mg/kg per day during 5 days in the majority of patients, and interval between cycles was 4 weeks. In 2 cases a complete remission (CR) was achieved and 4 cases attained a partial remission (PR) (overall response rate 66%). The main toxicity was hematologic, with neutropenia grade > 2 in 5 cases and thrombocytopenia > 2 in 5. Four patients had infections, with fatal evolution in one of them. After a median follow-up of 8 months (range 2-17), 2 patients remained in CR (12 months both), 4 in PR (range 2-12 months) and one had active disease (17 months). The other two died due to progressive disease and Aspergillus spp. sepsis, respectively. The actuarial probabilities of DFS and OS were 58% (95% CI, 38-78%) and 71% (95% CI, 54-88%), respectively. CONCLUSIONS 2CdA is an active drug for patients with refractory or relapsed LCH, and its main toxicity is myelosuppression. The usefulness of 2CdA, isolated or in combination with other drugs, in patients with refractory or relapsed LCH must be assessed in controlled studies.
Collapse
Affiliation(s)
- J Grau
- Hospital Universitari Germans Trias i Pujol. Badalona. Barcelona
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Sandoval V, Riddle EL, Ugarte YV, Hanson GR, Fleckenstein AE. Methamphetamine-induced rapid and reversible changes in dopamine transporter function: an in vitro model. J Neurosci 2001; 21:1413-9. [PMID: 11160413 PMCID: PMC6762246] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
This laboratory has demonstrated that a single methamphetamine (METH) injection rapidly and reversibly decreases the activity of the dopamine transporter (DAT), as assessed ex vivo in synaptosomes prepared from treated rats. This decrease does not occur because of residual drug introduced by the original injection or nor is it associated with a change in binding of the DAT ligand WIN35428. The purpose of this study was to elucidate the mechanism or mechanisms of this METH effect by determining whether direct application of this stimulant to synaptosomes causes changes in DAT similar to those observed ex vivo. Similar to the ex vivo effect, incubation of striatal synaptosomes with METH decreased DAT activity, but not WIN35428 binding: the effect on activity was not eliminated by repeated washing of synaptosomes. Also, as observed ex vivo, incubation with 3,4-methylenedioxymethamphetamine, but not cocaine or methylphenidate, caused a METH-like reduction in DAT function. The rapid and reversible METH-induced diminution in DAT activity did not occur because of a change in membrane potential, as assessed in vitro and ex vivo by [(3)H]tetraphenylphosphonium accumulation. However, the METH-related decline in DAT function may be attributed to phosphorylation because NPC15437, a protein kinase C inhibitor, attenuated the METH-induced decline in DAT function. Similarities between previously reported effects ex vivo of a single METH injection on serotonin and norepinephrine transporter function and effects of direct METH application in vitro were also found. Together, these data demonstrate that the in vitro incubation model mimics the rapid and reversible effects observed after a single METH injection.
Collapse
Affiliation(s)
- V Sandoval
- Department of Pharmacology and Toxicology, University of Utah, Salt Lake City, Utah 84112, USA
| | | | | | | | | |
Collapse
|
15
|
Abstract
Multiple methamphetamine administrations rapidly decrease rat striatal dopamine transporter activity. To determine the species specificity of this phenomenon, the present studies examined effects of this stimulant on the dopamine transporter in mice. As in rats, multiple methamphetamine injections rapidly reduced striatal dopamine transporter activity; a decrease that was partially reversed 24 h later. Moreover, methamphetamine decreased binding of the dopamine transporter ligand, WIN35428, but to a lesser degree than the change in dopamine transporter function. These decreases did not appear to result from residual methamphetamine introduced by the original drug treatment. As in rats, hyperthermia contributed to this phenomenon. Unlike in rats, a role for dopamine was not observed in mice as dopamine depletion, resulting from alpha-methyl-p-tyrosine pretreatment, did not prevent this decrease. In addition, unlike in rats, pretreatment with either a dopamine D1 or D2 receptor antagonist (SCH23390 or eticlopride, respectively) did not attenuate the methamphetamine-induced reduction in dopamine uptake. These findings demonstrate both similarities and differences in the acute effects of methamphetamine on dopamine transporter function in mice and rats, and suggest the mouse as an additional model for assessing the acute effects of methamphetamine on the dopamine transporter.
Collapse
Affiliation(s)
- V Sandoval
- Department of Pharmacology and Toxicology, 30 S. 200 E., Rm. 201, University of Utah, Salt Lake City, UT 84112, USA
| | | | | |
Collapse
|
16
|
Muñiz-Díaz E, Sandoval V, de la Calle O, Cecchini C, Gil S, Puig L, Madoz P. [Post-transfusion purpura. Description of 2 cases diagnosed at the same hospital in a 6-month period]. Sangre (Barc) 1996; 41:59-64. [PMID: 8779037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Two new cases of postransfusional purpura diagnosed at the same hospital within the space of six months are described. This finding supports the idea that despite being an infrequent disorder, a substantial rise in PTP cases inside and outside our country, has been recorded. This increase has coincided with a greater interest in platelet immunology and, particularly, in complications associated with blood transfusion. Both cases constitute an example of the clinical epidemiological profile which characterizes the patients suffering from this disorder. The patients are two women aged 74 and 60 years who after 8 and 9 days, respectively, of being transfused with red cells developed a severe thrombocytopenia accompanied by generalized haemorrhagic diathesis. The serological studies performed revealed the presence, in both patients, of an HPA-1a platelet specific antibody. The platelet genotyping enabled us to confirm this specificity after detecting an HPA-1 (a-b+) platelet genotype. The treatment with immunoglobulins at high doses proved to be effective in both cases. The adsorption-elution experiments of the antibody versus HPA-1 (a + b) platelets were positive in the patient with the highest antibody titre (1024). This finding support the most recent hypothesis concerning the pathogenic mechanism of PTP. According to this theory, the antibody, which is detected in the acute phase of the PTP, would not yet have acquired the restricted specificity corresponding to it. This could enable it to react with a structure shared by the HPA-1a positive and HPA-1a negative platelets.
Collapse
Affiliation(s)
- E Muñiz-Díaz
- Servicio de Hemoterapia, Hospital de Sant Pau, Universitat Autónoma de Barcelona
| | | | | | | | | | | | | |
Collapse
|
17
|
Ramos FJ, Sandoval V, Rodríguez JA, Moro MJ. [The paradox of G-CSF]. Med Clin (Barc) 1994; 102:718-9. [PMID: 7518024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
18
|
Cambier J, Chen ZZ, Pasternak J, Ransom J, Sandoval V, Pickles H. Ligand-induced desensitization of B-cell membrane immunoglobulin-mediated Ca2+ mobilization and protein kinase C translocation. Proc Natl Acad Sci U S A 1988; 85:6493-7. [PMID: 3045817 PMCID: PMC281999 DOI: 10.1073/pnas.85.17.6493] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Binding of ligand to B-cell membrane immunoglobulin (mIg) can lead to activation of a number of distinct biologic responses, including altered expression of genes encoding c-fos, c-myc, and Ia, as well as proliferation and immunologic tolerance. Tolerance could reflect a functional uncoupling of receptors from systems that generate intracellular second messengers (i.e., receptor desensitization). To better understand the molecular basis of immune regulation, we examined the ability of mIg to function as a signal transducer after the cell's initial contact with mIg-binding ligand. The results show that ligand binding to as little as 2-10% of mIgM or mIgD renders the cell unresponsive to ligand binding to the reciprocal isotype as judged by Ca2+ mobilization and protein kinase C translocation responses. This heterologous receptor desensitization lasts longer than 24 hr and does not reflect loss of receptor from the cell surface. Studies with the calcium ionophore ionomycin, 1,2-dioctanoyl-sn-glycerol, and the protein kinase inhibitor staurosporine indicate that both protein kinase C-dependent and protein kinase C-independent (staurosporine-insensitive) mechanisms mediate heterologous desensitization after mIg crosslinking.
Collapse
Affiliation(s)
- J Cambier
- Department of Pediatrics, National Jewish Center for Immunology and Respiratory Medicine, Denver, CO
| | | | | | | | | | | |
Collapse
|
19
|
Sandoval V, Orea T A, Garcia ML, Vargas MA, Camacho B. [Chronic cardiac actinomycosis. Case report and review of the literature]. Arch Inst Cardiol Mex 1988; 58:243-5. [PMID: 3063224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report the case of a young man in whom a right paracardiac mass was resected. The histopathologic study was compatible with actinomycosis. He developed severe cardiac failure, pulmonary edema and pericardial effusion. He was treated with penicillin, during 12 months. He did well afterwards, however, the echocardiographic follow-up revealed chronic pericardial effusion and thickening and fusion of the pericardium to the epicardial wall.
Collapse
Affiliation(s)
- V Sandoval
- Del Hospital Central Sur de Concentración Nacional de Petróleos Mexicanos, México, D.F
| | | | | | | | | |
Collapse
|
20
|
Baez RJ, Sandoval V, Hicks J, Morales F, Hanley M, Gildersleeve J. Reversible/irreversible hydrocolloid systems. Compendium 1987; 8:541-6. [PMID: 3479252] [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: 01/06/2023]
|
21
|
Baez RJ, Sandoval V, Hicks J, Morales F, Hanley M, Gildersleeve J. [Evaluation of crowns after impressions with a combination of reversible and irreversible hydrocolloids]. Phillip J Restaur Zahnmed 1987; 4:31-4. [PMID: 3037596] [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: 01/03/2023]
|
22
|
Justement L, Chen Z, Harris L, Ransom J, Sandoval V, Smith C, Rennick D, Roehm N, Cambier J. BSF1 induces membrane protein phosphorylation but not phosphoinositide metabolism, Ca2+ mobilization, protein kinase C translocation, or membrane depolarization in resting murine B lymphocytes. The Journal of Immunology 1986. [DOI: 10.4049/jimmunol.137.11.3664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The findings presented in this study provide evidence that BSF1 receptors and mIg transmit signals via dissimilar transduction mechanisms that result in a common biologic response, hyper-Ia expression. Specifically, BSF1-containing supernatant does not induce PtdInsP2 hydrolysis as determined by measurement of PtdOH and InsP3. Additionally, BSF1 does not stimulate Ca2+ mobilization, PKC translocation from cytosol to membrane, or membrane depolarization. All of these metabolic events appear to play a central role in hyper-Ia expression mediated by mIg and are initiated after treatment of resting B cells with anti-Ig antibodies. In vitro phosphorylation studies with partially purified plasma membranes from resting B cells revealed that BSF1 interaction with membrane receptors stimulates a membrane-associated protein kinase that phosphorylates an endogenous protein of 44 KDa. Anti-Ig does not stimulate phosphorylation of the 44 KDa protein, suggesting that it does not activate the membrane-associated protein kinase. This observation provides the first evidence of a signal transduction mechanism associated with BSF1-receptor ligation. It indicates that although BSF1 does not modulate events associated with PKC activation, it may function via activation of a membrane-associated protein kinase. This provides a focal point for further studies directed at elucidating signal transduction resulting from BSF1-receptor interaction.
Collapse
|
23
|
Justement L, Chen Z, Harris L, Ransom J, Sandoval V, Smith C, Rennick D, Roehm N, Cambier J. BSF1 induces membrane protein phosphorylation but not phosphoinositide metabolism, Ca2+ mobilization, protein kinase C translocation, or membrane depolarization in resting murine B lymphocytes. J Immunol 1986; 137:3664-70. [PMID: 3023486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The findings presented in this study provide evidence that BSF1 receptors and mIg transmit signals via dissimilar transduction mechanisms that result in a common biologic response, hyper-Ia expression. Specifically, BSF1-containing supernatant does not induce PtdInsP2 hydrolysis as determined by measurement of PtdOH and InsP3. Additionally, BSF1 does not stimulate Ca2+ mobilization, PKC translocation from cytosol to membrane, or membrane depolarization. All of these metabolic events appear to play a central role in hyper-Ia expression mediated by mIg and are initiated after treatment of resting B cells with anti-Ig antibodies. In vitro phosphorylation studies with partially purified plasma membranes from resting B cells revealed that BSF1 interaction with membrane receptors stimulates a membrane-associated protein kinase that phosphorylates an endogenous protein of 44 KDa. Anti-Ig does not stimulate phosphorylation of the 44 KDa protein, suggesting that it does not activate the membrane-associated protein kinase. This observation provides the first evidence of a signal transduction mechanism associated with BSF1-receptor ligation. It indicates that although BSF1 does not modulate events associated with PKC activation, it may function via activation of a membrane-associated protein kinase. This provides a focal point for further studies directed at elucidating signal transduction resulting from BSF1-receptor interaction.
Collapse
|
24
|
Sandoval V, Orea A, Camacho B, Caballero J, Diliz H, Larraza O. [Multiple paragangliomas. The problem of its localization. Report of the first case studied with 131I meta-iodobenzylguanidine in our milieu and review of the literature]. Arch Inst Cardiol Mex 1986; 56:237-42. [PMID: 2944492] [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: 01/03/2023]
Abstract
We report the case of a young woman, with an 8 year history of paroxysmal episodes of dyspnea, palpitations, blurred vision, tremors, precordial oppression and hypertension; the diagnosis of a chromaffin tumor was established, with an increase in serum and urine catecholamines level. She had three surgical interventions and also the following studies: abdominal and pelvic ultrasound, computed tomography, cavography; selective arteriography, and infusion of the meta iodobenzyl-guanidine 131, which localizes tissues hypersecretors rich in catecholamines.
Collapse
|