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Barba Joaquín A, Mosquera J, Riudavets Melià M, Gomez-Randulfe M, García Campelo M, Sullivan I, Serra Lopez J, Aguado M, Piedra A, Majem M. P42.03 Predictive Factors of Response to PD-(L)1 Inhibitors in Patients With Advanced Non-Small Cell Lung and High PD-L1 Expression. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.462] [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: 10/20/2022]
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Ioaquín AB, Piedra A, Mosquera J, Riudavets M, Gomez-Randulfe M, Campelo MG, Sullivan I, Serra J, Aguado M, Tarruella MM. 131P Predictive factors of response to PD-(L)1 inhibitors in patients with advanced non-small cell lung (NSCLC) and high PD-L1 expression. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01973-0] [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: 11/16/2022]
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Gomez-Barroso D, Herrador Z, San Martín JV, Gherasim A, Aguado M, Romero-Maté A, Molina L, Aparicio P, Benito A. Spatial distribution and cluster analysis of a leishmaniasis outbreak in the south-western Madrid region, Spain, September 2009 to April 2013. Euro Surveill 2015; 20:11-20. [DOI: 10.2807/1560-7917.es2015.20.7.21037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Affiliation(s)
- D Gomez-Barroso
- Network Biomedical Research Centre in Epidemiology and Public Health (CIBERESP in Spanish), Madrid, Spain
- These authors contributed equally to this article
- Health Institute Carlos III (ISCIII), Madrid, Spain
| | - Z Herrador
- Network Biomedical Research on Tropical Diseases (RICET in Spanish), Madrid, Spain
- National Centre for Tropical Medicine, ISCIII, Madrid, Spain
- These authors contributed equally to this article
| | - J V San Martín
- Fuenlabrada University Hospital, Madrid, Spain
- Network Biomedical Research on Tropical Diseases (RICET in Spanish), Madrid, Spain
| | - A Gherasim
- National Centre for Tropical Medicine, ISCIII, Madrid, Spain
| | - M Aguado
- Fuenlabrada University Hospital, Madrid, Spain
| | | | - L Molina
- Fuenlabrada University Hospital, Madrid, Spain
| | - P Aparicio
- Network Biomedical Research on Tropical Diseases (RICET in Spanish), Madrid, Spain
- National Centre for Tropical Medicine, ISCIII, Madrid, Spain
| | - A Benito
- National Centre for Tropical Medicine, ISCIII, Madrid, Spain
- Network Biomedical Research on Tropical Diseases (RICET in Spanish), Madrid, Spain
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Aguado M, Espinosa P, Romero-Maté A, Tardío J, Córdoba S, Borbujo J. Brote de leishmaniasis cutánea en el municipio de Fuenlabrada. Actas Dermo-Sifiliográficas 2013. [DOI: 10.1016/j.ad.2012.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Aguado M, Espinosa P, Romero-Maté A, Tardío JC, Córdoba S, Borbujo J. Outbreak of cutaneous leishmaniasis in Fuenlabrada, Madrid. Actas Dermosifiliogr 2013; 104:334-42. [PMID: 23567452 DOI: 10.1016/j.adengl.2013.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Accepted: 11/17/2012] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Leishmaniasis, an endemic infection in Spain, is caused by protozoan parasites of the Leishmania genus. Between 2010 and 2012, there was an outbreak of cutaneous and visceral leishmaniasis in Fuenlabrada, Madrid. OBJECTIVES To describe the cases of cutaneous leishmaniasis diagnosed over a 17-month period at the dermatology department of Hospital de Fuenlabrada. MATERIAL AND METHODS We analyzed the epidemiological, clinical, histological, and microbiological features of each case and also evaluated the treatments administered and outcomes. RESULTS We studied 149 cases. The incidence of cutaneous leishmaniasis showed a peak in the age range between 46 and 60 years and was similar in men and women. At the time of consultation, the lesions had been present for between 2 and 6 months in the majority of patients. The most common clinical presentation was with erythematous plaques and papules without crusts (52% of cases). Lesions were most often located in sun-exposed areas and were multiple in 57% of patients. In 67% of cases, the histological study showed non-necrotizing granulomatous dermatitis with no evidence of parasites using conventional staining methods. Diagnosis was confirmed by polymerase chain reaction (PCR) in 98% of patients. In the remaining cases, the histological study revealed Leishman-Donovan bodies in the skin. Intralesional pentavalent antimonials were the most commonly used drugs (76% of cases) and produced satisfactory results. CONCLUSIONS We have presented a large series of cases of cutaneous leishmaniasis diagnosed in the context of an outbreak. Multiple papules were the most common clinical presentation, with histology that showed non-necrotizing granulomatous dermatitis with no evidence of parasites. PCR of skin samples was the test that most frequently provided the diagnosis.
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Affiliation(s)
- M Aguado
- Servicio de Dermatología, Hospital Universitario de Fuenlabrada, Madrid, Spain.
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Córdoba S, Gandolfo Cano M, Aguado M, Huerta-Brogera M, Romero A, Martínez-Morán C, Borbujo J. Delayed allergic skin reactions due to intralesional meglumine antimoniate therapy for cutaneous leishmaniasis. Allergy 2012; 67:1609-11. [PMID: 23067046 DOI: 10.1111/all.12050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND The pentavalent antimonials are considered the first-choice drugs for treatment of leishmaniasis. Intralesional therapy is used to minimize the systemic effects of the drug. METHODS Seventy patients were treated with weekly intralesional infiltrations of Glucantime(®) (meglumine antimoniate) for cutaneous leishmaniasis. Nine of them had infiltrated itchy erythematous and vesiculous plaques at the injection sites. Cutaneous tests were undertaken in eight patients. RESULTS Prick tests were negative and seven of the eight patients showed positive intradermal tests with Glucantime(®) dilutions reading at D2 and D4. Only one patient had positive patch test to Glucantime a.i. Local reactions at the site of injection have been briefly mentioned in some reported series of leishmaniasis treated with intralesional or intramuscular meglumine antimoniate but the mechanism has never been explained before. CONCLUSIONS We report the first series of patients with local reactions at the injection sites of meglumine antimoniate in whom type IV hypersensitivity could be involved.
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Affiliation(s)
- S. Córdoba
- Dermatology; Hospital Universitario de Fuenlabrada
| | | | - M. Aguado
- Dermatology; Hospital Universitario de Fuenlabrada
| | | | - A. Romero
- Dermatology; Hospital Universitario de Fuenlabrada
| | | | - J. Borbujo
- Dermatology; Hospital Universitario de Fuenlabrada
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Gomez-Alonso J, Muñoz-Garcia D, Aguado M. Idiopathic mesial temporal lobe epilepsy: a syndrome with complex inheritance? J Neurol 2009; 256:2104-5. [PMID: 19763383 DOI: 10.1007/s00415-009-5313-1] [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] [Received: 03/27/2008] [Accepted: 08/25/2009] [Indexed: 10/20/2022]
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Aguado M, Brennen GK, Verstraete F, Cirac JI. Creation, manipulation, and detection of Abelian and non-Abelian anyons in optical lattices. Phys Rev Lett 2008; 101:260501. [PMID: 19113760 DOI: 10.1103/physrevlett.101.260501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Indexed: 05/27/2023]
Abstract
Anyons are particlelike excitations of strongly correlated phases of matter with fractional statistics, characterized by nontrivial changes in the wave function, generalizing Bose and Fermi statistics, when two of them are interchanged. This can be used to perform quantum computations [A. Yu. Kitaev, Ann. Phys. (N.Y.) 303, 2 (2003)]. We show how to simulate the creation and manipulation of Abelian and non-Abelian anyons in topological lattice models using trapped atoms in optical lattices. Our proposal, feasible with present technology, requires an ancilla particle which can undergo single-particle gates, be moved close to each constituent of the lattice and undergo a simple quantum gate, and be detected.
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Affiliation(s)
- M Aguado
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, Garching, D-85748, Germany
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Aguado M, Martínez-Urbistondo D, Solomon A, Martínez J. Gender-dependent differences in the responses of human adipocytes to leptin lipolytic action. ACTA ACUST UNITED AC 2008; 30:7-11. [DOI: 10.1358/mf.2008.30.1.1147772] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jacob S, Aguado M, Fallik D, Praz F. The role of the DNA mismatch repair system in the cytotoxicity of the topoisomerase inhibitors camptothecin and etoposide to human colorectal cancer cells. Cancer Res 2001; 61:6555-62. [PMID: 11522654] [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: 02/21/2023]
Abstract
The DNA mismatch repair (MMR) system is involved in the correction of base/base mismatches and insertion/deletion loops arising during replication. In addition, some of the MMR components participate in recombination and double-strand break repair as well as cell cycle regulation and apoptosis. The inactivation of MMR genes, usually hMSH2 or hMLH1, is associated with human colorectal cancers and is responsible for the characteristic microsatellite instability (MSI)+ phenotype of these tumors. Because MMR is assumed to modulate cytotoxicity to various chemotherapeutic agents that act upon DNA, our objectives have been to define its possible involvement in the cytotoxicity of topoisomerase inhibitors. We have shown that colorectal cancer cell lines defective in DNA MMR exhibit an increased sensitivity to both camptothecin, a topoisomerase I inhibitor, and etoposide, a topoisomerase II inhibitor. Sensitivity to these drugs cannot be predicted by measuring endogenous levels of topoisomerase I and II. Our results also indicate that neither p53 status, nor cell cycle alterations correlate with the sensitivity of colorectal cancer cells to topoisomerase inhibitors. On the other hand, our data showing that resistance to these drugs can be achieved by the functional complementation of hMLH1 in an hMLH1-defective cell line have allowed us to establish that MMR is a critical determinant for chemosensitivity. Interestingly, our observations provide the rationale for the better responsiveness of MSI+ tumors to CPT-11, a camptothecin derivative, which we have observed in patients with metastatic colorectal cancers.
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Affiliation(s)
- S Jacob
- Centre National de la Recherche Scientifique Unité Mixte de Recherche 1598, Institut Gustave Roussy, 94 800 Villejuif, France
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Gomez-Ambrosi J, Fruhbeck G, Aguado M, Milagro F, Margareto J, Martinez A. Divergent effects of an α2-adrenergic antagonist on lipolysis and thermogenesis: Interactions with a β3-adrenergic agonist in rats. Int J Mol Med 2001. [DOI: 10.3892/ijmm.8.1.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Gómez-Ambrosi J, Frühbeck G, Aguado M, Milagro FI, Margareto J, Martínez AJ. Divergent effects of an alpha2-adrenergic antagonist on lipolysis and thermogenesis: interactions with a beta3-adrenergic agonist in rats. Int J Mol Med 2001; 8:103-9. [PMID: 11408957] [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: 02/20/2023] Open
Abstract
This study was undertaken in order to test the hypothesis that selective beta3-AR stimulation and simultaneous blockade of alpha2-AR would result in an increase of lipolysis and thermogenesis in rats. Incubation of isolated white adipocytes with the alpha2-AR antagonist yohimbine produced a concentration-dependent increase in glycerol release (P<0.001) for all assayed concentrations (10-12-10-6 M) and potentiated the lipolytic effect of the beta3-AR agonist Trecadrine. However, in vivo administration of yohimbine produced a marked decrease in body temperature (1.3-1.5 degrees C, P<0.001) and blocked the thermogenic effect of Trecadrine when simultaneously administered. A similar response was observed for whole body oxygen consumption. Furthermore, yohimbine did not modify brown adipose tissue oxygen consumption, but blocked the beta3-AR-mediated increase triggered by Trecadrine. Brown adipose tissue UCP-2 and -3 mRNA expression was not changed by yohimbine. In conclusion, the present work indicates that in vitro alpha2-AR blockade by yohimbine potentiates the beta3-AR-mediated stimulation of lipolysis. On the other hand, in vivo alpha2-AR antagonism blocks the thermogenic effects mediated by beta3-AR stimulation, suggesting a possible interplay between the receptors.
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Affiliation(s)
- J Gómez-Ambrosi
- Department of Physiology and Nutrition, University of Navarra, 31008 Pamplona, Spain
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Marti A, Aguado M, Martínez-Ansó E, Martínez JA. The MAP kinase pathways mediate leptin-induced lipolysis. J Physiol Biochem 2001. [DOI: 10.1007/bf03179076] [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: 11/28/2022]
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Margareto J, Aguado M, Osés-Prieto JA, Rivero I, Monge A, Aldana I, Marti A, Martínez JA. A new NPY-antagonist strongly stimulates apoptosis and lipolysis on white adipocytes in an obesity model. Life Sci 2000; 68:99-107. [PMID: 11132250 DOI: 10.1016/s0024-3205(00)00916-4] [Citation(s) in RCA: 24] [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: 11/16/2022]
Abstract
Neuropeptide Y (NPY) is a 36 amino acid peptide released in central and peripheral mammalian neurons, which appears to contribute to adiposity regulation by increasing food intake, thus promoting weight gain on animals. Nevertheless, little is known about NPY direct actions on white adipocytes. This trial, which was designed to test the possible effects of a new NPY antagonist, S.A.0204, on white adipose tissue, revealed that the administration of this novel molecule strongly ex vivo stimulates apoptosis and lipolysis in animals fed on a high-fat diet.
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Affiliation(s)
- J Margareto
- Department of Physiology and Nutrition, University of Navarra, Pamplona, Spain
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Abstract
Lipid turnover and deposition is under the control of developmental, nutritional, metabolic and neuroendocrine influences. The aim of the current investigations was focused on the study of the involvement of leptin and neuropeptide Y in lipid mobilization. The lipolytic rate was assessed through glycerol release after incubation with leptin and NPY at concentrations ranging from 10(-6) to 10(-12) M in isolated adipocytes obtained from female rats. The presence of leptin at concentrations of 10(-12) to 10(-7) M in the incubation medium of isolated fat cells significantly increased (p < 0.0001) glycerol release, except at the concentration of 10(-11) M, where the increase was (p < 0.01) as compared to the basal lipolytic activity. On the other hand, isolated fat cells of Wistar rats bathed in 10(-10) to 10(-6) M concentrations of NPY demonstrated a statistically significant decrease (p < 0.0001) in glycerol release. At equimolar concentrations of leptin and NPY (10(-12) to 10(-6) M) the observed lipolytic activity is comparable to the basal lipolytic activity, except at a concentration of 10(-9) M where upon a significant increase in lipolysis is observed. A further increase in the equimolar concentrations, beyond 10(-9) M results in a return to the basal lipolytic activity. Summing up, new evidence suggests that NPY and leptin may interact in a homeostatic loop to regulate body-fat mass and energy balance not only at the central nervous system level, but also directly at the adipocyte level.
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Affiliation(s)
- J A Martínez
- Departamento de Fisiología y Nutrición, Universidad de Navarra, Pamplona, Spain.
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Ojeda E, Garcia-Bustos J, Aguado M, Arrieta R, Quevedo E, Yuste VJ, Canales M, Hernandez-Navarro F. A prospective randomized trial of granulocyte colony-stimulating factor therapy after autologous blood stem cell transplantation in adults. Bone Marrow Transplant 1999; 24:601-7. [PMID: 10490724 DOI: 10.1038/sj.bmt.1701972] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/08/2022]
Abstract
In order to assess the potential clinical benefit of filgrastim (G-CSF) after peripheral blood stem cell (PBSC) autotransplantation a randomized study was begun in our center in July 1997: 62 patients were involved (30 received filgrastim after PBSC infusion and 32, the control group, received no cytokines). All were adults (median 40 years, range 18-65). Patients with one of three different pathologies were recruited: 28 had advanced breast carcinoma, 23 had lymphomas (12 Hodgkin's disease and 11 non-Hodgkin's lymphoma) and 11 had de novo AML. All of them were transplanted using myeloablative chemotherapy conditioning regimens. G-CSF was administered subcutaneously from day +5 in the treated group at a dose of 5 microg/kg body weight/day. The numbers of CD34+ and mononuclear (MNC) cells infused were similar in each group. Only minor differences regarding the use of G-CSF could be inferred from the analysis of the data. Faster granulocyte engraftment was evident in the treated group (mean of 10 vs 12 days to achieve >0.5 x 109/l granulocytes, P = 0.0008), without differences in incidence and severity of infections, days of fever or duration of antibiotic treatment between groups. There was slightly slower platelet engraftment (mean of 15 days in the group with G-CSF vs 12 days in the other group to achieve >20 x 109/l platelets, P = NS) in this series, but there were no differences in incidence and severity of haemorrhage or platelet transfusion support. Considering the economical costs, the median expenditure per inpatient stay was Eur5961 (range Eur4386-Eur17186) in the G-CSF group compared with Eur5751 (range Eur3676-Eur15640) in the control group (P = 0.47). From our data it could be concluded that for adult patients transplanted with PBSC there is no clear beneficial impact of post-infusion G-CSF administration.
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Affiliation(s)
- E Ojeda
- Servicio de Hematología y Hemoterapia, Hospital 'La Paz', Madrid, Spain
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Frühbeck G, Aguado M, Gómez-Ambrosi J, Martínez JA. Lipolytic effect of in vivo leptin administration on adipocytes of lean and ob/ob mice, but not db/db mice. Biochem Biophys Res Commun 1998; 250:99-102. [PMID: 9735339 DOI: 10.1006/bbrc.1998.9277] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.2] [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: 11/22/2022]
Abstract
The present study has examined the effect of a single in vivo intraperitoneal injection of the adipocyte-derived hormone, leptin, on the in vitro lipolysis of fat cells of different types of mice. Administration of 1 and 10 mg leptin per kg body weight to ob/ob mice significantly increased (P < 0.0001) the basal lipolytic activity compared to ob/ob mice receiving vehicle solution (phosphate-buffered saline, PBS). The highest leptin dose tested (10 mg/kg body weight) produced a threefold increase in basal lipolysis. In lean mice administration of 10 mg leptin per kilogram of body weight produced an increase in basal lipolysis of 52.7% (P < 0.01). However, in db/db mice none of the three leptin doses injected had a significant effect on the lipolytic activity of adipocytes relative to basal lipolysis observed in db/db mice injected with PBS only. These data provide evidence for a lipolytic effect of leptin on white adipose tissue, which operates independently from changes in food intake, body weight, and the size of the fat stores.
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Affiliation(s)
- G Frühbeck
- Department of Physiology and Nutrition, University of Navarra, Pamplona, 31080-, Spain
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Marti A, Novo FJ, Martinez-Anso E, Zaratiegui M, Aguado M, Martinez JA. Leptin gene transfer into muscle increases lipolysis and oxygen consumption in white fat tissue in ob/ob mice. Biochem Biophys Res Commun 1998; 246:859-62. [PMID: 9618302 DOI: 10.1006/bbrc.1998.8539] [Citation(s) in RCA: 25] [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: 11/22/2022]
Abstract
The effects of leptin production in ob/ob mice injected with a plasmid expression vector containing mouse leptin cDNA in the tibialis anterior muscle were investigated. A significant reduction in food intake (-18%, p < 0.01) along the experimental period was found after DNA injection, while differences in body weight gain were only significant (-41%, p < 0.05) when determined between days 2.9 of the study. Concerning adipocytes metabolism, there was a significant increase in oxygen consumption in vitro (+34%, p < 0.05) and in basal lipolysis (+151%, p < 0.05) in DNA-injected mice compared to PBS-injected animals. Our results confirm that functional leptin can be produced in muscle and released into the blood stream and give new support to the fact that leptin may have direct auto- or paracrine effects on adipocytes, possible contributing to the weight- and fat-reducing effects of leptin in ob/ob mice.
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Affiliation(s)
- A Marti
- Department of Physiology and Nutrition, University of Navarra, Pamplona, Spain
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Frühbeck G, Aguado M, Martínez JA. In vitro lipolytic effect of leptin on mouse adipocytes: evidence for a possible autocrine/paracrine role of leptin. Biochem Biophys Res Commun 1997; 240:590-4. [PMID: 9398609 DOI: 10.1006/bbrc.1997.7716] [Citation(s) in RCA: 177] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The present study has examined the effects of the adipocyte-derived hormone, leptin, on lipolysis in fat cells of different types of mice. Exposure to leptin (1.25.10(-6) M to 1.25.10(-12) M) increased (P < 0.01) the lipolytic activity of fat cells obtained from lean mice. A greater stimulation was observed when adipocytes from ob/ob mice were examined. Throughout the concentrations tested, the leptin-induced lipolysis observed in fat cells of lean animals was smaller than that obtained in ob/ob mice. The maximal lipolytic effect in obese animals was observed with 10(-8) M of OB protein. The lipolytic activity following the addition of 1.25.10(-10) M to 1.25.10(-6) M was significantly increased (P < 0.01) in ob/ob mice compared to lean animals. Adipocytes from ob/ob mice responded in a dose-dependent manner to the OB protein, while the leptin-induced lipolysis observed in lean animals was dose-independent. In contrast to lean and ob/ob mice, leptin did not stimulate lipolysis in adipocytes from db/db mice, which have a mutation in the leptin receptor gene. These in vitro studies suggest an autocrine/paracrine action of leptin on white fat cells and envisages the involvement of the OB protein, not only in centrally mediated pathways, but also in physiological functions which take place peripherally.
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Affiliation(s)
- G Frühbeck
- Department of Physiology and Nutrition, University of Navarra, Pamplona, Spain
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Garde J, Aguado M, Pérez S, Garrido D, Pérez-Guzmán M, Montoro V. Physiological characteristics of epididymal spermatozoa from postmortem rams. Theriogenology 1994. [DOI: 10.1016/s0093-691x(05)80113-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sarasola C, Dominguez L, Aguado M, Ugalde JM. The Laplacian of the intracule and extracule densities and their relationship to the shell structure of atoms. J Chem Phys 1992. [DOI: 10.1063/1.462566] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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García Olmos L, Arias P, Barrios M, de la Cuesta A, Aguado M. [The content of the nursing consultation at a health center]. Aten Primaria 1992; 9:187-91. [PMID: 1305836] [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: 12/26/2022] Open
Abstract
AIMS To describe the care process in the Nursing Station. To analyse the length of a consultation and factors which affect the length. DESIGN Crossover study. Analysis of the length of the Consultation, using a multiple lineal regression model. SITE. Urban Health Centre. PATIENTS AND OTHERS TAKING PART: All the calls and consultations, both in the patient's home and in the Health Centre, undertaken by six nurses over a period of two weeks. MAIN MEASUREMENTS AND RESULTS There were 879 consultations. 65.41% of them took place in the treatment room. Ten health problems represented 72% of the work-load. Health education took un the greatest proportion of time. The average time of a consultation was of 10.40 +/- 0.3 minutes. The length of the consultation depended on the professional involved, on the place where it took place, on the number of problems which the patient had and on the nature of the main problem: multiple correlation coefficient = 0.74; F = 67.52 (p < 0.00000001). CONCLUSIONS The nurse faces a very limited number of health problems. Most of her activities are preventive or to do with prevention. The length of the Consultation in greatly conditioned by the amount of morbidity.
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Montalban C, Bellas C, Rodriguez-Garcia JL, Aguado M, Fernandez-Muñoz R. Non-Hodgkin's lymphoma after prolonged remission of Hodgkin's disease in an HIV-infected patient. Ann Oncol 1991; 2:585-7. [PMID: 1665342 DOI: 10.1093/oxfordjournals.annonc.a058025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Hodgkin's disease was diagnosed in a 22-year-old HIV-seropositive man in 1986. Alternate MOPP/ABVD chemotherapy induced a clinical remission. He was asymptomatic until 3 years later when fever and peripheral and mediastinal lymphadenopathy appeared. Lymph node biopsy showed a large-cell anaplastic lymphoma and EBV genome was identified in the malignant cells, suggesting that transformation might had been induced by EBV. The present case affirms that in patients with HIV-related lymphomas who present enlarging lymphadenopathy after stable remission, the development of lymphomas of higher malignancy needs to be ruled out.
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Affiliation(s)
- C Montalban
- Department of Internal Medicine, Hospital Ramon y Cajal, Madrid, Spain
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Rodríguez-García JL, Sánchez-Corral J, Martínez J, Bellas C, Aguado M, Serrano M. Phenytoin-induced benign lymphadenopathy with solid spleen lesions mimicking a malignant lymphoma. Ann Oncol 1991; 2:443-5. [PMID: 1768633] [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: 12/28/2022] Open
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Rodn'guez-Garcia J, Sanchez-Corral J, Martinez J, Bellas C, Aguado M, Serrano M. Phenytoin-induced benign lymphadenopathy with solid spleen lesions mimicking a malignant lymphoma. Ann Oncol 1991. [DOI: 10.1016/s0923-7534(20)30580-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Soria C, Aguado M, Muñoz E, Ledo A. [Crohn disease metastatic to the skin]. Rev Clin Esp 1990; 186:465. [PMID: 2247684] [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: 12/31/2022]
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Aguado M, Rodrguez RF. Dynamics of pattern formation in the Turing optical instability. Phys Rev A Gen Phys 1989; 39:5686-5696. [PMID: 9901151 DOI: 10.1103/physreva.39.5686] [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: 05/22/2023]
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Aguado M, Hernández-García E. Dye-laser fluctuations: Comparison of colored loss-noise and white gain-noise models. Phys Rev A Gen Phys 1988; 38:5670-5677. [PMID: 9900306 DOI: 10.1103/physreva.38.5670] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Rodríguez RF, Manero O, Aguado M. Thermodynamic description of depolarized light scattering from viscoelastic liquids. Phys Rev B Condens Matter 1988; 38:4827-4835. [PMID: 9946875 DOI: 10.1103/physrevb.38.4827] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
Suspension cultures of human bone marrow mononuclear cells form colonies of fibroblastoid cells which expand to form confluent monolayers. These fibroblastoid cells are thought to represent elements of the bone marrow stroma. Fibroblastoid cells failed to proliferate when the cultures were initiated and maintained in the presence of 50% (v/v) of medium conditioned by phytohaemagglutinin (PHA)-stimulated blood mononuclear cells or supernatant media from one-way mixed lymphocyte reactions (MLR). Under these conditions, the cultures contained a pleomorphic population of macrophage-like cells. Some of the characteristics of the fibroblastoid and macrophage-like cells have been compared and a separate origin of the two cell types has been demonstrated. Further experiments indicated that T lymphocytes were the source of the factor(s) in the conditioned media which was responsible for the growth of the macrophage-like cells at the expense of the fibroblastoid cells and suggested that activation of the T cells was necessary for them to exert their effect. The results support the idea that T lymphocytes can influence the haemopoietic microenvironment of the bone marrow.
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Blackett NM, Aguado M. The enhancement of haemopoietic stem cell recovery in irradiated mice by prior treatment with cyclophosphamide. Cell Tissue Kinet 1979; 12:291-8. [PMID: 476777 DOI: 10.1111/j.1365-2184.1979.tb00151.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Studies are reported of the enhancement of stem cell recovery following whole body irradiation as a result of prior administration of cyclophosphamide. It is shown that the much larger enhancement of regeneration observed for the hosts own surviving stem cells, compared to the regeneration of injected bone marrow stem cells, is due to the different numbers of stem cells initiating the regeneration in conjunction with the time course of stem cell regeneration. The results show that the environmental changes produced by cyclophosphmide greatly enhance haemopoietic recovery even though at the dose used this agent is relatively toxic to stem cells. Furthermore it has been shown that the level of stem cell regeneration is nearly independent of the gamma-ray dose in the range 3-8 gray (300-800 rad). If human bone marrow should respond similarly it follows that regeneration produced by cytotoxic drugs administered prior to radiation embodies a considerable safety factor as far as recovery of the haemopoietic system is concerned.
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Blackett NM, Marsh JC, Gordon MY, Okell SF, Aguado M. Simultaneous assay by six methods of the effect on haemopoietic precursor cells of adriamycin, methyl CCNU, 60Co gamma-rays, vinblastine, and cytosine arabinoside. Exp Hematol 1978; 6:2-8. [PMID: 342260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The spleen colony assay, three agar colony assays and two repopulating assays have been employed to measure the effect of single doses of adriamycin, methyl CCNU, 60CO gamma-rays, vinblastine and repeated injection of cytosine arabinoside on early haemopoietic precursors. The results show that there is no consistent correlation between the effect of these agents on the six assays, and the differences in proliferation rate of the cells contributing to the various assays could not be demonstrated by the phase specific agents vinblastine and cytosine arabinoside. The relatively high survival of granulocyte repopulating ability after adriamycin and methyl CCNU indicates that the capacity for differentiation and maturation can be influenced by cytotoxic agents so that colony assays while estimating the number of progenitor cells surviving do not necessarily provide a reliable guide to the capacity of the cells for restoring haemopoiesis. Comparison of colony formation by normal bone marrow cells with the three agar colony assays showed that the agar diffusion chamber method gave three times as many colonies and a much smaller variation between experiments compared to the in vitro agar assay with endotoxin mouse serum as colony stimulating factor. The thin layer feeder cell method gave an intermediate number of colonies.
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Gordon MY, Aguado M, Blackett NM. Effects of BCG and Corynebacterium parvum on the haemopoietic precursor cells in continuously irradiated mice: possible mechanisms of action in immunotherapy. Eur J Cancer 1977; 13:229-33. [PMID: 324769 DOI: 10.1016/0014-2964(77)90209-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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