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Marques-Pamies M, Gil J, Valassi E, Hernández M, Biagetti B, Giménez-Palop O, Martínez S, Carrato C, Pons L, Villar-Taibo R, Araujo-Castro M, Blanco C, Simón I, Simó-Servat A, Xifra G, Vázquez F, Pavón I, García-Centeno R, Zavala R, Hanzu FA, Mora M, Aulinas A, Vilarrasa N, Librizzi S, Calatayud M, de Miguel P, Alvarez-Escola C, Picó A, Sampedro M, Salinas I, Fajardo-Montañana C, Cámara R, Bernabéu I, Jordà M, Webb SM, Marazuela M, Puig-Domingo M. Revisiting the usefulness of the short acute octreotide test to predict treatment outcomes in acromegaly. Front Endocrinol (Lausanne) 2023; 14:1269787. [PMID: 38027102 PMCID: PMC10654626 DOI: 10.3389/fendo.2023.1269787] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction We previously described that a short version of the acute octreotide test (sAOT) can predict the response to first-generation somatostatin receptor ligands (SRLs) in patients with acromegaly. We have prospectively reassessed the sAOT in patients from the ACROFAST study using current ultra-sensitive GH assays. We also studied the correlation of sAOT with tumor expression of E-cadherin and somatostatin receptor 2 (SSTR2) . Methods A total of 47 patients treated with SRLs for 6 months were evaluated with the sAOT at diagnosis and correlated with SRLs' response. Those patients whose IGF1 decreased to <3SDS from normal value were considered responders and those whose IGF1 was ≥3SDS, were considered non-responders. The 2 hours GH value (GH2h) after s.c. administration of 100 mcg of octreotide was used to define predictive cutoffs. E-cadherin and SSTR2 immunostaining in somatotropinoma tissue were investigated in 24/47 and 18/47 patients, respectively. Results In all, 30 patients were responders and 17 were non-responders. GH2h was 0.68 (0.25-1.98) ng/mL in responders vs 2.35 (1.59-9.37) ng/mL in non-responders (p<0.001). GH2h = 1.4ng/mL showed the highest ability to identify responders (accuracy of 81%, sensitivity of 73.3%, and specificity of 94.1%). GH2h = 4.3ng/mL was the best cutoff for non-response prediction (accuracy of 74%, sensitivity of 35.3%, and specificity of 96.7%). Patients with E-cadherin-positive tumors showed a lower GH2h than those with E-cadherin-negative tumors [0.9 (0.3-2.1) vs 3.3 (1.5-12.1) ng/mL; p<0.01], and patients with positive E-cadherin presented a higher score of SSTR2 (7.5 ± 4.2 vs 3.3 ± 2.1; p=0.01). Conclusion The sAOT is a good predictor tool for assessing response to SRLs and correlates with tumor E-cadherin and SSTR2 expression. Thus, it can be useful in clinical practice for therapeutic decision-making in patients with acromegaly.
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Affiliation(s)
| | - Joan Gil
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER, Unidad 747), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
| | - Elena Valassi
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER, Unidad 747), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
- Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Marta Hernández
- Department of Endocrinology and Nutrition, Arnau de Vilanova University Hospital, Lleida, Spain
- Endocrine Research Unit, Lleida Institute for Biomedical Research Dr. Pifarré Foundation (IRBLleida), Lleida, Spain
| | - Betina Biagetti
- Department of Endocrinology and Nutrition, Vall Hebron University Hospital, Barcelona, Spain
| | - Olga Giménez-Palop
- Department of Endocrinology and Nutrition, Parc Taulí University Hospital, Sabadell, Spain
| | - Silvia Martínez
- Department Hormonal Laboratory, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Cristina Carrato
- Department of Pathology, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Laura Pons
- Department of Pathology, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Rocío Villar-Taibo
- Department of Endocrinology and Nutrition, Clínico de Santiago University Hospital, Santiago de Compostela, Spain
| | - Marta Araujo-Castro
- Department of Endocrinology and Nutrition, Ramón y Cajal University Hospital, Madrid, Spain
| | - Concepción Blanco
- Department of Endocrinology and Nutrition, Príncipe de Asturias University Hospital, Madrid, Spain
| | - Inmaculada Simón
- Department of Endocrinology and Nutrition, Joan XXIII University Hospital, Tarragona, Spain
| | - Andreu Simó-Servat
- Department of Endocrinology and Nutrition, Mutua de Terrassa University Hospital, Terrassa, Spain
| | - Gemma Xifra
- Department of Endocrinology and Nutrition, Josep Trueta University Hospital, Girona, Spain
| | - Federico Vázquez
- Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Isabel Pavón
- Department of Endocrinology and Nutrition, Getafe University Hospital, Madrid, Spain
| | - Rogelio García-Centeno
- Department of Endocrinology and Nutrition, Gregorio Marañón University Hospital, Madrid, Spain
| | - Roxana Zavala
- Department of Endocrinology and Nutrition, Joan XXIII University Hospital, Tarragona, Spain
| | - Felicia Alexandra Hanzu
- Department of Endocrinology and Nutrition, Hospital Clinic University Hospital, Barcelona, Spain
- Endocrine Research Unit, Institut d’Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Mireia Mora
- Department of Endocrinology and Nutrition, Hospital Clinic University Hospital, Barcelona, Spain
- Endocrine Research Unit, Institut d’Investigacions Biomèdiques August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Anna Aulinas
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER, Unidad 747), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
- Department of Endocrinology and Nutrition, Hospital Sant Pau, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Departament de Medicina, Barcelona, Spain
| | - Nuria Vilarrasa
- Department of Endocrinology and Nutrition, Bellvitge University Hospital, Bellvitge, Spain
- Endocrine Research Unit, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), Bellvitge, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Soledad Librizzi
- Department of Endocrinology and Nutrition, 12 de Octubre University Hospital, Madrid, Spain
| | - María Calatayud
- Department of Endocrinology and Nutrition, 12 de Octubre University Hospital, Madrid, Spain
| | - Paz de Miguel
- Department of Endocrinology and Nutrition, Clínico San Carlos University Hospital, Madrid, Spain
| | | | - Antonio Picó
- Department of Endocrinology and Nutrition, General University Hospital Dr Balmis, Miguel Hernández University, Alicante, Spain
- Endocrine Research Unit, Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
| | - Miguel Sampedro
- Department of Endocrinology and Nutrition, La Princesa University Hospital, Madrid, Spain
| | - Isabel Salinas
- Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain
| | | | - Rosa Cámara
- Department of Endocrinology and Nutrition, La Fe University Hospital, Valencia, Spain
| | - Ignacio Bernabéu
- Department of Endocrinology and Nutrition, Clínico de Santiago University Hospital, Santiago de Compostela, Spain
| | - Mireia Jordà
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
| | - Susan M. Webb
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER, Unidad 747), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
- Department of Endocrinology and Nutrition, Hospital Sant Pau, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Departament de Medicina, Barcelona, Spain
| | - Mónica Marazuela
- Department of Endocrinology and Nutrition, La Princesa University Hospital, Madrid, Spain
| | - Manel Puig-Domingo
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER, Unidad 747), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
- Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain
- Universitat Autònoma de Barcelona (UAB), Departament de Medicina, Barcelona, Spain
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Ruiz S, Gil J, Biagetti B, Venegas E, Cámara R, Garcia-Centeno R, Gálvez MÁ, Picó A, Maraver S, González I, Abellán P, Trincado P, Herrera M, Olvera P, Xifra G, Bernabeu I, Serra-Soler G, Azriel S, García L, Carvalho D, Jordà M, Valassi E, Puig J, Puig-Domingo M. Magnetic resonance imaging as a predictor of therapeutic response to pasireotide in acromegaly. Clin Endocrinol (Oxf) 2023; 99:378-385. [PMID: 37421211 DOI: 10.1111/cen.14946] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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] [Received: 04/04/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
OBJECTIVE Hyperintensity signal in T2-weighted magnetic resonance imaging (MRI) has been related to better therapeutic response during pasireotide treatment in acromegaly. The aim of the study was to evaluate T2 MRI signal intensity and its relation with pasireotide therapeutic effectiveness in real-life clinical practice. DESIGN, PATIENTS AND MEASUREMENTS Retrospective multicentre study including acromegaly patients treated with pasireotide. Adenoma T2-weighted MRI signal at diagnosis was qualitatively classified as iso-hyperintense or hypointense. Insulin-like growth factor (IGF-I), growth hormone (GH) and tumour volume reduction were assessed after 6 and 12 months of treatment and its effectiveness evaluated according to baseline MRI signal. Hormonal response was considered 'complete' when normalization of IGF-I levels was achieved. Significant tumour shrinkage was defined as a volume reduction of ≥25% from baseline. RESULTS Eighty-one patients were included (48% women, 50 ± 1.5 years); 93% had previously received somatostatin receptor ligands (SRLs) treatment. MRI signal was hypointense in 25 (31%) and hyperintense in 56 (69%) cases. At 12 months of follow-up, 42/73 cases (58%) showed normalization of IGF-I and 37% both GH and IGF-I. MRI signal intensity was not associated with hormonal control. 19/51 cases (37%) presented a significant tumour volume shrinkage, 16 (41%) from the hyperintense group and 3 (25%) from the hypointense. CONCLUSIONS T2-signal hyperintensity was more frequently observed in pasireotide treated patients. Almost 60% of SRLs resistant patients showed a complete normalization of IGF-I after 1 year of pasireotide treatment, regardless of the MRI signal. There was also no difference in the percentage tumour shrinkage over basal residual volume between the two groups.
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Affiliation(s)
- Sabina Ruiz
- Germans Trias i i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Joan Gil
- Germans Trias i i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Betina Biagetti
- Servei d'Endocrinología i Nutrició, Hospital Universitari Vall d'Hebrón, Barcelona, Spain
| | - Eva Venegas
- Servicio de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Rosa Cámara
- Servicio de Endocrinología y Nutrición, Hospital Universitario La Fe, Valencia, Spain
| | - Rogelio Garcia-Centeno
- Servicio de Endocrinología y Nutrición, Hospital Universitario Gregorio Marañón, Madrid, Spain
| | - María-Ángeles Gálvez
- Servicio de Endocrinología y Nutrición, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Antonio Picó
- Servicio de Endocrinología y Nutrición, Hospital General Universitario de Alicante, Alicante, Spain
| | - Silvia Maraver
- Servicio de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Inmaculada González
- Servicio de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Pablo Abellán
- Servicio de Endocrinología y Nutrición, Hospital General Universitario de Castellón, Castellón de la Plana, Spain
| | - Pablo Trincado
- Servicio de Endocrinología y Nutrición, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Mayte Herrera
- Servicio de Endocrinología y Nutrición, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Pilar Olvera
- Servicio de Endocrinología y Nutrición, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Gemma Xifra
- Servei d'Endocrinologia i Nutrició, Hospital Universitari Josep Trueta, Girona, Spain
| | - Ignacio Bernabeu
- Servicio de Endocrinología y Nutrición, Complejo Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - Guillermo Serra-Soler
- Servicio de Endocrinología y Nutrición, Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Sharona Azriel
- Servicio de Endocrinología y Nutrición, Hospital Universitario Infanta Sofía, Madrid, Spain
| | - Lourdes García
- Servicio de Endocrinología y Nutrición, Hospital Universitario de Jerez, Cádiz, Spain
| | - Davide Carvalho
- Servicio de Endocrinología, Diabetes y Metabolismo, Centro Hospitalar Universitário de São João, FMUP, i3s, Porto, Portugal
| | - Mireia Jordà
- Germans Trias i i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Elena Valassi
- Germans Trias i i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Josep Puig
- Centre de Medicina Comparada i Bioimatge, IGTP, Badalona, Spain
- Servei de Radiologia, Hospital Universitari Josep Trueta, IDIBGi, Girona, Spain
| | - Manel Puig-Domingo
- Germans Trias i i Pujol Research Institute and Hospital, Universitat Autònoma de Barcelona, Badalona, Spain
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Gil J, Marques-Pamies M, Valassi E, Serra G, Salinas I, Xifra G, Casano-Sancho P, Carrato C, Biagetti B, Sesmilo G, Marcos-Ruiz J, Rodriguez-Lloveras H, Rueda-Pujol A, Aulinas A, Blanco A, Hostalot C, Simó-Servat A, Muñoz F, Rico M, Ibáñez-Domínguez J, Cordero E, Webb SM, Jordà M, Puig-Domingo M. Molecular characterization of epithelial-mesenchymal transition and medical treatment related-genes in non-functioning pituitary neuroendocrine tumors. Front Endocrinol (Lausanne) 2023; 14:1129213. [PMID: 37033229 PMCID: PMC10074986 DOI: 10.3389/fendo.2023.1129213] [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: 12/21/2022] [Accepted: 02/23/2023] [Indexed: 04/11/2023] Open
Abstract
INTRODUCTION Different medical therapies have been developed for pituitary adenomas. However, Non-Functioning Pituitary Neuroendocrine Tumors (NF-PitNET) have shown little response to them. Furthermore, epithelial-mesenchymal transition (EMT) has been linked to resistance to medical treatment in a significant number of tumors, including pituitary adenomas. METHODS We aimed to evaluate the expression of EMT-related markers in 72 NF-PitNET and 16 non-tumoral pituitaries. To further explore the potential usefulness of medical treatment for NF-PitNET we assessed the expression of somatostatin receptors and dopamine-associated genes. RESULTS We found that SNAI1, SNAI2, Vimentin, KLK10, PEBP1, Ki-67 and SSTR2 were associated with invasive NF-PitNET. Furthermore, we found that the EMT phenomenon was more common in NF-PitNET than in GH-secreting pituitary tumors. Interestingly, PEBP1 was overexpressed in recurrent NF-PitNET, and could predict growth recurrence with 100% sensitivity but only 43% specificity. In parallel with previously reported studies, SSTR3 is highly expressed in our NF-PitNET cohort. However, SSTR3 expression is highly heterogeneous among the different histological variants of NF-PitNET with very low levels in silent corticotroph adenomas. CONCLUSION NF-PitNET showed an enhanced EMT phenomenon. SSTR3 targeting could be a good therapeutic candidate in NF-PitNET except for silent corticotroph adenomas, which express very low levels of this receptor. In addition, PEBP1 could be an informative biomarker of tumor regrowth, useful for predictive medicine in NF-PitNET.
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Affiliation(s)
- Joan Gil
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Department of Endocrinology, Research Center for Pituitary Diseases, Hospital Sant Pau, IIB-SPau, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Centro de Investigación en Red de Enfermedades Raras, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain
| | - Montserrat Marques-Pamies
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Department of Endocrinology, Hospital Municipal de Badalona, Badalona, Catalonia, Spain
| | - Elena Valassi
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Department of Endocrinology, Research Center for Pituitary Diseases, Hospital Sant Pau, IIB-SPau, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Centro de Investigación en Red de Enfermedades Raras, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain
| | - Guillermo Serra
- Department of Endocrinology, Son Espases University Hospital, Palma de Mallorca, Spain
| | - Isabel Salinas
- Department of Endocrinology and Nutrition, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Gemma Xifra
- Department of Endocrinology, Josep Trueta University Hospital, Girona, Spain
| | - Paula Casano-Sancho
- Centro de Investigación en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Pediatric Endocrinology Unit, Institut de Recerca SJS 39-57, Hospital Sant Joan de Déu, University of Barcelona, Esplugues, Spain
| | - Cristina Carrato
- Department of Pathology, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Betina Biagetti
- Department of Endocrinology, University Hospital Vall d’Hebron, Barcelona, Spain
| | - Gemma Sesmilo
- Department of Endocrinology, Dexeus University Hospital, Barcelona, Spain
| | - Jennifer Marcos-Ruiz
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
| | | | - Anna Rueda-Pujol
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
| | - Anna Aulinas
- Department of Endocrinology, Research Center for Pituitary Diseases, Hospital Sant Pau, IIB-SPau, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Centro de Investigación en Red de Enfermedades Raras, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain
| | - Alberto Blanco
- Department of Neurosurgery, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Cristina Hostalot
- Department of Neurosurgery, Germans Trias i Pujol University Hospital, Badalona, Spain
| | - Andreu Simó-Servat
- Department of Endocrinology, Hospital Universitari Mútua de Terrassa, Terrassa, Spain
| | - Fernando Muñoz
- Department of Neurosurgery, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Marta Rico
- Department of Neurosurgery, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Esteban Cordero
- Department of Neurosurgery, University Hospital Vall d’Hebron, Barcelona, Spain
| | - Susan M. Webb
- Department of Endocrinology, Research Center for Pituitary Diseases, Hospital Sant Pau, IIB-SPau, Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Centro de Investigación en Red de Enfermedades Raras, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain
| | - Mireia Jordà
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
| | - Manel Puig-Domingo
- Endocrine Research Unit, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain
- Centro de Investigación en Red de Enfermedades Raras, CIBERER, Unit 747, Instituto de Salud Carlos III, Madrid, Spain
- Department of Endocrinology, Hospital Municipal de Badalona, Badalona, Catalonia, Spain
- *Correspondence: Manel Puig-Domingo,
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Domenech-Ximenos B, Cuba V, Daunis-I-Estadella P, Thió-Henestrosa S, Jaldo F, Biarnes C, Molina X, Xifra G, Ricart W, Bardera A, Boada I, Essig M, Pedraza S, Federici M, Fernández-Real JM, Puig J. Bariatric Surgery-Induced Changes in Intima-Media Thickness and Cardiovascular Risk Factors in Class 3 Obesity: A 3-Year Follow-Up Study. Obesity (Silver Spring) 2020; 28:1663-1670. [PMID: 32776483 DOI: 10.1002/oby.22905] [Citation(s) in RCA: 2] [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] [Received: 03/31/2020] [Revised: 05/04/2020] [Accepted: 05/08/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The impact of weight loss induced by bariatric surgery (BS) and nonsurgical approaches on cardiovascular risk factors (CVRFs) has not been fully elucidated. We assessed the effects of BS and a nonsurgical approach on carotid intima-media thickness (CIMT) and CVRFs in participants with class 3 obesity. METHODS A total of 87 participants with obesity (59 women; 46 [37-52] years old; BMI, 43 [40-47]) and 75 controls were recruited; 21 (25%) participants with obesity underwent BS. BMI, blood pressure, cholesterol, triglycerides, fasting plasma glucose, C-reactive protein, CIMT, and Framingham Risk Score were measured at baseline and at 3-year follow-up. Independent factors for reduction in CIMT were analyzed. The literature on the effects of BS and CIMT was reviewed. RESULTS After BS, BMI decreased from 45.45 to 27.28 (P < 0.001), and mean CIMT decreased from 0.64 mm (0.56-0.75 mm) to 0.54 mm (0.46-0.65) mm (P < 0.012), equivalent to 0.005 mm/kg of weight lost. At 3-year follow-up, participants who had undergone BS had similar CIMT and CVRFs to the control group. No changes in CVRFs were seen related to the nonsurgical approach. BMI reduction after BS had the strongest independent association with decreased CIMT. CONCLUSIONS Weight loss after BS decreases CIMT and CVRFs in middle-aged participants with class 3 obesity, resulting in CIMT similar to that observed in lean participants.
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Affiliation(s)
- Blanca Domenech-Ximenos
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Victor Cuba
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Pepus Daunis-I-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Santiago Thió-Henestrosa
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Francisco Jaldo
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Carles Biarnes
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Xavier Molina
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Anton Bardera
- Institute of Informatics and Applications, University of Girona, Girona, Spain
| | - Imma Boada
- Institute of Informatics and Applications, University of Girona, Girona, Spain
| | - Marco Essig
- Department of Radiology, University of Manitoba, Winnipeg, Canada
| | - Salvador Pedraza
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Massimo Federici
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Josep Puig
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Radiology, University of Manitoba, Winnipeg, Canada
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Hoyles L, Fernández-Real JM, Federici M, Serino M, Abbott J, Charpentier J, Heymes C, Luque JL, Anthony E, Barton RH, Chilloux J, Myridakis A, Martinez-Gili L, Moreno-Navarrete JM, Benhamed F, Azalbert V, Blasco-Baque V, Puig J, Xifra G, Ricart W, Tomlinson C, Woodbridge M, Cardellini M, Davato F, Cardolini I, Porzio O, Gentileschi P, Lopez F, Foufelle F, Butcher SA, Holmes E, Nicholson JK, Postic C, Burcelin R, Dumas ME. Publisher Correction: Molecular phenomics and metagenomics of hepatic steatosis in non-diabetic obese women. Nat Med 2018; 24:1628. [DOI: 10.1038/s41591-018-0169-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Barja-Fernandez S, Moreno-Navarrete JM, Folgueira C, Xifra G, Sabater M, Castelao C, FernØ J, Leis R, Diéguez C, Casanueva FF, Ricart W, Seoane LM, Fernandez-Real JM, Nogueiras R. Plasma ANGPTL-4 is Associated with Obesity and Glucose Tolerance: Cross-Sectional and Longitudinal Findings. Mol Nutr Food Res 2018. [DOI: 10.1002/mnfr.201800060] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Silvia Barja-Fernandez
- Grupo Fisiopatología Endocrina; IDIS; Complejo Hospitalario Universitario de Santiago de Compostela; Spain
- Departamento de Pediatría; Universidad de Santiago de Compostela; Spain
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
| | - José María Moreno-Navarrete
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Diabetes, Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona Hospital Dr. Josep Trueta; Girona Spain
| | - Cintia Folgueira
- Grupo Fisiopatología Endocrina; IDIS; Complejo Hospitalario Universitario de Santiago de Compostela; Spain
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Physiology, CIMUS; University of Santiago de Compostela-Instituto de Investigación Sanitaria; Santiago de Compostela 15782 Spain
| | - Gemma Xifra
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Diabetes, Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona Hospital Dr. Josep Trueta; Girona Spain
| | - Mònica Sabater
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Diabetes, Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona Hospital Dr. Josep Trueta; Girona Spain
| | - Cecilia Castelao
- Grupo Fisiopatología Endocrina; IDIS; Complejo Hospitalario Universitario de Santiago de Compostela; Spain
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
| | - Johan FernØ
- KG Jebsen Center for Diabetes Research; Department of Clinical Science; University of Bergen; Bergen Norway
| | - Rosaura Leis
- Departamento de Pediatría; Universidad de Santiago de Compostela; Spain
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
| | - Carlos Diéguez
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Physiology, CIMUS; University of Santiago de Compostela-Instituto de Investigación Sanitaria; Santiago de Compostela 15782 Spain
| | - Felipe F. Casanueva
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Departamento de Medicina; Universidad de Santiago de Compostela; Spain
| | - Wifredo Ricart
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Diabetes, Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona Hospital Dr. Josep Trueta; Girona Spain
| | - Luisa M. Seoane
- Grupo Fisiopatología Endocrina; IDIS; Complejo Hospitalario Universitario de Santiago de Compostela; Spain
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
| | - José Manuel Fernandez-Real
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Diabetes, Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona Hospital Dr. Josep Trueta; Girona Spain
| | - Rubén Nogueiras
- CIBER Fisiopatología Obesidad y Nutrición; Instituto Salud Carlos III; Spain
- Department of Physiology, CIMUS; University of Santiago de Compostela-Instituto de Investigación Sanitaria; Santiago de Compostela 15782 Spain
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Chacón MR, Lozano-Bartolomé J, Portero-Otín M, Rodríguez MM, Xifra G, Puig J, Blasco G, Ricart W, Chaves FJ, Fernández-Real JM. The gut mycobiome composition is linked to carotid atherosclerosis. Benef Microbes 2017; 9:185-198. [PMID: 29124969 DOI: 10.3920/bm2017.0029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The mycobiotic component of the microbiota comprises an integral, yet under-researched, part of the gastrointestinal tract. Here, we present a preliminary study of the possible contribution of gut mycobiota to sub-clinical atherosclerosis in a well-characterised group of obese and non-obese subjects in association with the Framingham Risk Score (FRS) and carotid intima-media thickness (cIMT). From all taxa identified, the relative abundance of the phylum Zygomycota, comprising the family Mucoraceae and genus Mucor, was negatively associated with cIMT and this association remained significant after controlling for false discovery rate. Obese subjects with detectable Mucor spp. had a similar cardiovascular risk profile as non-obese subjects. Interestingly, the relative abundance of Mucor racemosus was negatively associated both with FRS and cIMT. Partial least square discriminant analyses modelling, evaluating the potential relevance of gut mycobiota in patients stratified by mean values of cIMT, showed that even a 1 component model had a high accuracy (0.789), with a high R2 value (0.51). Variable importance in projection scores showed that M. racemosus abundance had the same impact in the model as waist-to-hip ratio, high-density lipoprotein-cholesterol, fasting triglycerides or fasting glucose, suggesting that M. racemosus relative abundance in the gut may be a relevant biomarker for cardiovascular risk.
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Affiliation(s)
- M R Chacón
- 1 Research Unit, Institut d'Investigació Sanitària Pere Virgili, Mallafrè Guash 4, 43007 Tarragona, Spain
| | - J Lozano-Bartolomé
- 1 Research Unit, Institut d'Investigació Sanitària Pere Virgili, Mallafrè Guash 4, 43007 Tarragona, Spain
| | - M Portero-Otín
- 2 Department of Experimental Medicine, Universitat de Lleida-IRBLleida, Avda Rovira Roure 80, 25196 Lleida, Spain
| | - M M Rodríguez
- 1 Research Unit, Institut d'Investigació Sanitària Pere Virgili, Mallafrè Guash 4, 43007 Tarragona, Spain
| | - G Xifra
- 3 Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Carrer del Dr. Castany, s/n, 17190 Salt, Spain.,4 CIBERobn Instituto de Salud Carlos III (ISCIII), C/ Sinesio Delgado 4, 28029 Madrid, Spain
| | - J Puig
- 5 Department of Radiology, Institut d'Investigació Biomèdica de Girona (IdIBGi), Carrer del Dr. Castany, s/n, 17190 Salt, Spain
| | - G Blasco
- 5 Department of Radiology, Institut d'Investigació Biomèdica de Girona (IdIBGi), Carrer del Dr. Castany, s/n, 17190 Salt, Spain
| | - W Ricart
- 3 Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Carrer del Dr. Castany, s/n, 17190 Salt, Spain.,4 CIBERobn Instituto de Salud Carlos III (ISCIII), C/ Sinesio Delgado 4, 28029 Madrid, Spain
| | - F J Chaves
- 6 Fundación de Investigación del Hospital Clínico de Valencia-INCLIVA, Avenida de Menéndez y Pelayo, 4, 46010 Valencia, Spain
| | - J M Fernández-Real
- 3 Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Carrer del Dr. Castany, s/n, 17190 Salt, Spain.,4 CIBERobn Instituto de Salud Carlos III (ISCIII), C/ Sinesio Delgado 4, 28029 Madrid, Spain
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8
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Xifra G, Moreno-Navarrete JM, Moreno M, Ricart W, Fernández-Real JM. Obesity status influences the relationship among serum osteocalcin, iron stores and insulin sensitivity. Clin Nutr 2017; 37:2091-2096. [PMID: 29050649 DOI: 10.1016/j.clnu.2017.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/15/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND & AIMS Increased iron stores significantly influence the clinical course of several chronic metabolic diseases. Recent studies have shown that iron overload decreases osteocalcin. We aimed to explore the relationship among osteocalcin, iron stores and insulin sensitivity. METHODS Extensive clinical and laboratory measurements, including serum ferritin, cross-linked C-telopeptide of type I collagen (CTX) and osteocalcin (OC) concentrations, were analyzed in 250 adult consecutive Caucasian men. Insulin sensitivity was evaluated through frequently sampled intravenous glucose tolerance tests with minimal model analysis. RESULTS Circulating serum ferritin were negatively associated with serum OC and CTX (p = 0.004 and p = 0.045 respectively). In all subjects as a whole, BMI and ferritin contributed to explain 5.2% of OC variance after controlling for age and smoking status. However, the association between OC and insulin sensitivity remained significant only in lean subjects (BMI < 25 kg/m2, r = 0.468; p = 0.006) whereas the link between serum ferritin concentration and OC and CTX were significant only in overweight/obese subjects (BMI ≥ 25 kg/m2, r = -0.229; p = 0.002 and r = -0.196; p = 0.008, respectively). CONCLUSIONS The association of circulating osteocalcin with parameters of insulin sensitivity and iron stores were dependent on obesity status. Increased iron stores could contribute to the detrimental metabolic effects of overweight and obesity on bone.
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Affiliation(s)
- Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomédica de Girona (IdIBGi), CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBERobn, CB06/03/0010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomédica de Girona (IdIBGi), CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBERobn, CB06/03/0010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomédica de Girona (IdIBGi), CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBERobn, CB06/03/0010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomédica de Girona (IdIBGi), CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBERobn, CB06/03/0010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomédica de Girona (IdIBGi), CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBERobn, CB06/03/0010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.
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9
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Wu H, Esteve E, Tremaroli V, Khan MT, Caesar R, Mannerås-Holm L, Ståhlman M, Olsson LM, Serino M, Planas-Fèlix M, Xifra G, Mercader JM, Torrents D, Burcelin R, Ricart W, Perkins R, Fernàndez-Real JM, Bäckhed F. Metformin alters the gut microbiome of individuals with treatment-naive type 2 diabetes, contributing to the therapeutic effects of the drug. Nat Med 2017; 23:850-858. [PMID: 28530702 DOI: 10.1038/nm.4345`1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 04/19/2017] [Indexed: 05/20/2023]
Abstract
Metformin is widely used in the treatment of type 2 diabetes (T2D), but its mechanism of action is poorly defined. Recent evidence implicates the gut microbiota as a site of metformin action. In a double-blind study, we randomized individuals with treatment-naive T2D to placebo or metformin for 4 months and showed that metformin had strong effects on the gut microbiome. These results were verified in a subset of the placebo group that switched to metformin 6 months after the start of the trial. Transfer of fecal samples (obtained before and 4 months after treatment) from metformin-treated donors to germ-free mice showed that glucose tolerance was improved in mice that received metformin-altered microbiota. By directly investigating metformin-microbiota interactions in a gut simulator, we showed that metformin affected pathways with common biological functions in species from two different phyla, and many of the metformin-regulated genes in these species encoded metalloproteins or metal transporters. Our findings provide support for the notion that altered gut microbiota mediates some of metformin's antidiabetic effects.
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Affiliation(s)
- Hao Wu
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Eduardo Esteve
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, Hospital Josep Trueta, Girona, Spain
- Departament de Medicina, Facultat de Medicina, University of Girona, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Valentina Tremaroli
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Muhammad Tanweer Khan
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Robert Caesar
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Louise Mannerås-Holm
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Marcus Ståhlman
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Lisa M Olsson
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Matteo Serino
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Mercè Planas-Fèlix
- Barcelona Supercomputing Center (BSC), Joint BSC-CRG-IRB Research Program in Computational Biology, Barcelona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, Hospital Josep Trueta, Girona, Spain
- Departament de Medicina, Facultat de Medicina, University of Girona, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Josep M Mercader
- Barcelona Supercomputing Center (BSC), Joint BSC-CRG-IRB Research Program in Computational Biology, Barcelona, Spain
| | - David Torrents
- Barcelona Supercomputing Center (BSC), Joint BSC-CRG-IRB Research Program in Computational Biology, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Université Paul Sabatier (UPS), Unité Mixte de Recherche 1048, Institut de Maladies Métaboliques et Cardiovasculaires, Toulouse, France
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, Hospital Josep Trueta, Girona, Spain
- Departament de Medicina, Facultat de Medicina, University of Girona, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Rosie Perkins
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - José Manuel Fernàndez-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, Hospital Josep Trueta, Girona, Spain
- Departament de Medicina, Facultat de Medicina, University of Girona, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Fredrik Bäckhed
- Department of Molecular and Clinical Medicine, Wallenberg Laboratory, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Sahlgrenska University Hospital, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Basic Metabolic Research, Section for Metabolic Receptology and Enteroendocrinology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Moreno-Navarrete JM, Moreno M, Ortega F, Xifra G, Hong S, Asara JM, Serrano JCE, Jové M, Pissios P, Blüher M, Ricart W, Portero-Otin M, Fernández-Real JM. TSHB mRNA is linked to cholesterol metabolism in adipose tissue. FASEB J 2017. [PMID: 28646016 DOI: 10.1096/fj.201700161r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Subclinical hypothyroidism is known to be associated with increased serum cholesterol. Since thyroid-stimulating hormone (TSH) exerts an inductor effect on cholesterol biosynthesis, we aimed to investigate the relationship between TSH mRNA and cholesterol metabolism in human adipose tissue (AT). Cross-sectionally, AT TSH-β (TSHB) mRNA was evaluated in 4 independent cohorts in association with serum total and LDL cholesterol, and AT lipidomics. Longitudinally, the effects of statins and of diet and exercise on AT TSHB mRNA were also examined. The bidirectional relationship between cholesterol and TSHB were studied in isolated human adipocytes. TSHB mRNA was consistently detected in AT from euthyroid subjects, and positively associated with serum total- and LDL-cholesterol, and with AT-specific cholesterol metabolism-associated lipids [arachidonoyl cholesteryl ester, C8-dihydroceramide, N-stearoyl-d-sphingosine, and GlcCer(18:0, 24:1)]. Reduction of cholesterol with statins and with diet and exercise interventions led to decreased TSHB mRNA in human AT, whereas excess cholesterol up-regulated TSHB mRNA in human adipocytes. In addition, recombinant human TSH α/β administration resulted in increased HMGCR mRNA levels in human adipocytes. In mice, subcutaneous AT Tshb expression levels correlated directly with circulating cholesterol levels. In summary, current results provide novel evidence of TSHB as a paracrine factor that is modulated in parallel with cholesterol metabolism in human AT.-Moreno-Navarrete, J. M., Moreno, M., Ortega, F., Xifra, G., Hong, S., Asara, J. M., Serrano, J. C. E., Jové, M., Pissios, P., Blüher, M., Ricart, W., Portero-Otin, M., Fernández-Real, J. M. TSHB mRNA is linked to cholesterol metabolism in adipose tissue.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Shangyu Hong
- Division of Diabetes, Endocrinology and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - John M Asara
- Division of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - José C E Serrano
- Nutrició i Envelliment (NUTREN)-Nutrigenomics, Institut de Recerca Biomèdica de Lleida (IRBLLEIDA)-University of Lleida, Científic i Tecnològic Agroalimentari de Lleida (PCiTAL), Lleida, Spain
| | - Mariona Jové
- Nutrició i Envelliment (NUTREN)-Nutrigenomics, Institut de Recerca Biomèdica de Lleida (IRBLLEIDA)-University of Lleida, Científic i Tecnològic Agroalimentari de Lleida (PCiTAL), Lleida, Spain
| | - Pavlos Pissios
- Division of Diabetes, Endocrinology and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain.,Department of Medicine, Universitat de Girona, Girona, Spain
| | - Manuel Portero-Otin
- Nutrició i Envelliment (NUTREN)-Nutrigenomics, Institut de Recerca Biomèdica de Lleida (IRBLLEIDA)-University of Lleida, Científic i Tecnològic Agroalimentari de Lleida (PCiTAL), Lleida, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Girona, Spain; .,Department of Medicine, Universitat de Girona, Girona, Spain
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Moreno-Navarrete JM, Moreno M, Puig J, Blasco G, Ortega F, Xifra G, Ricart W, Fernández-Real JM. Hepatic iron content is independently associated with serum hepcidin levels in subjects with obesity. Clin Nutr 2016; 36:1434-1439. [PMID: 27745814 DOI: 10.1016/j.clnu.2016.09.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 09/30/2015] [Revised: 08/31/2016] [Accepted: 09/23/2016] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Serum hepcidin concentration is known to increase in parallel to circulating markers of iron stores. We aimed to investigate whether this is reflected at the tissue level in subjects with obesity. METHODS Serum hepcidin and ferritin levels (ELISA) and hepatic iron content (using magnetic resonance imaging) were analyzed longitudinally in 44 participants (19 without obesity and 25 with obesity). In a subgroup of 16 participants with obesity, a weight loss intervention was performed. RESULTS Serum hepcidin, ferritin and hepatic iron content (HIC) were significantly increased in participants with obesity. Age- and gender-adjusted serum hepcidin was positively correlated with BMI, hsCRP, ferritin and HIC. In addition, age- and gender-adjusted serum hepcidin was positively correlated with ferritin and HIC in both non-obese and obese participants. In multivariate regression analysis, hepatic iron content (p < 0.01) and serum ferritin (p < 0.001) contributed independently to circulating hepcidin concentration variation after controlling for age, gender, BMI and hsCRP. Diet intervention-induced weight loss led to decreased serum hepcidin (p = 0.01), serum ferritin concentration (p = 0.01) and HIC (p = 0.002). Of note, the percent change of serum hepcidin strongly correlated with the percent change of serum ferritin (r = 0.69, p = 0.01) and HIC (r = 0.61, p = 0.03) even after controlling for age and gender. CONCLUSIONS Serum hepcidin is a reliable marker of the hepatic iron content in subjects with obesity.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Josep Puig
- Department of Radiology, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, Girona, Spain
| | - Gerard Blasco
- Department of Radiology, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Dr Josep Trueta, CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.
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12
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Ortega FJ, Agüera Z, Sabater M, Moreno-Navarrete JM, Alonso-Ledesma I, Xifra G, Botas P, Delgado E, Jimenez-Murcia S, Fernández-García JC, Tinahones FJ, Baños RM, Botella C, de la Torre R, Frühbeck G, Rodrigüez A, Estivill X, Casanueva F, Ricart W, Fernández-Aranda F, Fernández-Real JM. Genetic variations of the bitter taste receptor TAS2R38 are associated with obesity and impact on single immune traits. Mol Nutr Food Res 2016; 60:1673-83. [PMID: 27059147 DOI: 10.1002/mnfr.201500804] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 10/13/2015] [Revised: 02/22/2016] [Accepted: 02/22/2016] [Indexed: 12/18/2022]
Abstract
SCOPE Changes in genetic variations affecting the taste receptor, type 2, member 38 (TAS2R38) may identify the interacting mechanism leading to obesity and potential associations with proteins partaking in innate immunity, such as surfactant protein D (SPD) and mannan-binding lectin (MBL). METHODS AND RESULTS We evaluated haplotypes of the bitter-taste receptor TAS2R38 in an identification sample of 210 women in different weight conditions, including anorexia nervosa and obesity. The association with SPD and MBL was tested in an independent sample picturing general population (n = 534). The relationship with obesity was validated in an extended final sample of 1319 participants. In the sample comprised of women in extreme weight conditions, increased obesity was identified in AVI/AVI subjects (OR = 2.5 [1.06-6.11], p = 0.035). In the sample picturing general population, increased SPD and MBL concentrations were found in nonsmoking AVI carriers. In this cohort, smoking and obesity blunted associations between TAS2R38 haplotypes and SPD and MBL. In the extended sample, the association of AVI/AVI haplotypes with increased obesity was also identified (OR = 1.4 [0.99/1.85], p = 0.049), being more robust in subjects aged <40 years (OR = 1.9 [1.06/3.42], p = 0.031). CONCLUSION Current data reinforce the impact of TAS2R38 gene on phenotypic and clinical outputs affecting obesity, showing significant associations with extreme weight conditions (i.e., obesity and anorexia nervosa), and changes in both olfactory capacity and immune traits.
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Affiliation(s)
- Francisco J Ortega
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | - Zaida Agüera
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Psychiatry, University Hospital of Bellvitge (IDIBELL), and Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - Mònica Sabater
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | - José M Moreno-Navarrete
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | - Isabel Alonso-Ledesma
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | - Gemma Xifra
- Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | | | | | - Susana Jimenez-Murcia
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Psychiatry, University Hospital of Bellvitge (IDIBELL), and Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - José C Fernández-García
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Diabetes, Endocrinology and Nutrition, Hospital Clínico Universitario Virgen de Victoria, Málaga, Spain
| | - Francisco J Tinahones
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Diabetes, Endocrinology and Nutrition, Hospital Clínico Universitario Virgen de Victoria, Málaga, Spain
| | - Rosa M Baños
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Psychological, Personality, Evaluation and Treatment, University of Valencia, Valencia, Spain
| | - Cristina Botella
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Basic Psychology, Clinic and Psychobiology, University Jaume I, Castelló, Spain
| | - Rafael de la Torre
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Pharmacology, School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,Human Pharmacology and Clinical Neurosciences Research Group, Neuroscience Research Program, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Gema Frühbeck
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Endocrinology and Nutrition, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
| | - Amaia Rodrigüez
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Endocrinology and Nutrition, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
| | - Xavier Estivill
- Center for Genomic Regulation (CRG) and CIBER de Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Felipe Casanueva
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Endocrine Division, Complejo Hospitalario U. de Santiago, Santiago de Compostela University, Santiago de Compostela, Spain
| | - Wifredo Ricart
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
| | - Fernando Fernández-Aranda
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Department of Psychiatry, University Hospital of Bellvitge (IDIBELL), and Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - José M Fernández-Real
- CIBER de la Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain.,Service of Diabetes, Endocrinology and Nutrition (UDEN), and Institut d'Investigació Biomédica de Girona (IdIBGi), Girona, Spain
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13
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Puig J, Blasco G, Daunis-i-Estadella J, Moreno M, Molina X, Alberich-Bayarri A, Xifra G, Pedraza S, Ricart W, Fernández-Aranda F, Fernández-Real JM. Lower serum osteocalcin concentrations are associated with brain microstructural changes and worse cognitive performance. Clin Endocrinol (Oxf) 2016; 84:756-63. [PMID: 26406918 DOI: 10.1111/cen.12954] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [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] [Received: 06/23/2015] [Revised: 07/13/2015] [Accepted: 09/21/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Rodent models have found that osteocalcin crosses the blood-brain barrier and regulates behaviour. No data are available on osteocalcin's effects on brain microstructure and cognitive performance in humans. We evaluated the association between serum osteocalcin concentrations and (i) brain microstructural changes on magnetic resonance imaging (MRI) and (ii) neuropsychological performance. DESIGN, PATIENTS AND MEASUREMENTS We studied 24 consecutive obese subjects (13 women; age, 49·8 ± 8·1 years; body mass index [BMI], 43·9 ± 4·54 kg/m(2) ) and 20 healthy volunteers (10 women; age, 48·8 ± 9·5 years; BMI, 24·3 ± 3·54 kg/m(2) ) in a cross-sectional study within the multicentre FLORINASH Project. FLAIR signal intensity and DTI-metrics (primary (λ1 ), secondary (λ2 ) and tertiary (λ3 ) eigenvalues; fractional anisotropy (FA); and mean diffusivity) in the caudate, hypothalamus, thalamus and putamen, and in subcortical white matter were assessed. Cognitive performance evaluated by neuropsychological test battery. RESULTS Lower osteocalcin concentrations were associated with BMI, higher λ1, λ2 and λ3 values at the caudate and lower FLAIR signal intensity at the caudate and putamen. Obese patients with lower osteocalcin concentrations had higher FA at putamen and thalamus. Lower osteocalcin concentrations were associated with higher Iowa Gambling Task (IGT) scores. FLAIR signal intensity at the caudate <601·832 yielded 85·7% sensitivity, 64·3% specificity, 70·6% negative predictive value and 81·8% positive predictive value for IGT score. Lower osteocalcin was an independent predictor of worse cognitive performance on multivariate analysis (F = 3·551, P = 0·01343; R(2) = 0·103). Bayesian information criterion demonstrated that osteocalcin had the predominant role in predicting IGT score. CONCLUSIONS Lower serum osteocalcin concentrations are associated with brain microstructural changes and worse cognitive performance.
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Affiliation(s)
- Josep Puig
- Department of Radiology (IDI), Research Unit, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Gerard Blasco
- Department of Radiology (IDI), Research Unit, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Josep Daunis-i-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Xavier Molina
- Department of Radiology (IDI), Research Unit, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Angel Alberich-Bayarri
- Biomedical Imaging Research Group (GIBI230), La Fe Polytechnics and University Hospital, La Fe Health Research Institute, Valencia, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Salvador Pedraza
- Department of Radiology (IDI), Research Unit, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Fernando Fernández-Aranda
- Department of Psychiatry, Hospital Universitari de Bellvitge, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Barcelona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
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14
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Moreno-Navarrete JM, Jove M, Ortega F, Xifra G, Ricart W, Obis È, Pamplona R, Portero-Otin M, Fernández-Real JM. Metabolomics uncovers the role of adipose tissue PDXK in adipogenesis and systemic insulin sensitivity. Diabetologia 2016; 59:822-32. [PMID: 26831303 DOI: 10.1007/s00125-016-3863-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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] [Received: 09/17/2015] [Accepted: 12/17/2015] [Indexed: 01/08/2023]
Abstract
AIMS/HYPOTHESIS We aimed to investigate the potential mechanisms involved in the compromised adipogenesis of visceral (VAT) vs subcutaneous adipose tissue (SAT) using comparative metabolomics. Based on the differentially identified metabolites, we focused on the relationship between the active form of vitamin B6 (pyridoxal 5-phosphate [PLP]), known to be generated through pyridoxal kinase (PDXK), and adipogenesis. METHODS Non-targeted metabolomics analyses were performed in paired VAT and SAT (n = 14, discovery cohort). PDXK gene expression was evaluated in two validation cohorts of paired SAT and VAT samples in relation to obesity status and insulin sensitivity, and mechanistically after weight loss in vivo and in 3T3-L1 cells in vitro. RESULTS Comparative metabolomics showed that PLP was significantly decreased in VAT vs SAT. Concordantly, PDXK mRNA levels were significantly decreased in VAT vs SAT, specifically in adipocytes. The decrease was specially marked in obese individuals. PDXK mRNA levels showed a strong association with adipogenic, lipid-droplet-related and lipogenic genes. At a functional level, systemic insulin sensitivity positively associated with PDXK expression, and surgically-induced weight loss (improving insulin sensitivity) led to increased SAT PDXK mRNA levels in parallel with adipogenic genes. In human pre-adipocytes, PDXK mRNA levels increased during adipocyte differentiation and after administration of peroxisome proliferator-activated receptor-γ agonists, and decreased under inflammatory stimuli. Mechanistic studies in 3T3-L1 cells showed that PLP administration resulted in increased adipogenic mRNA markers during early adipogenesis, whereas the PLP antagonist 4-deoxypyridoxine exerted opposite effects. CONCLUSIONS/INTERPRETATION Overall, these results support the notion that in situ production of PLP is required for physiological adipogenesis.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital of Girona 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Mariona Jove
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (IRBLleida)-PCiTAL, Lleida, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital of Girona 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital of Girona 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital of Girona 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Èlia Obis
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (IRBLleida)-PCiTAL, Lleida, Spain
| | - Reinald Pamplona
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (IRBLleida)-PCiTAL, Lleida, Spain
| | - Manuel Portero-Otin
- Department of Experimental Medicine, University of Lleida-Biomedical Research Institute of Lleida (IRBLleida)-PCiTAL, Lleida, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital of Girona 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain.
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain, .
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15
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Moreno-Navarrete JM, Blasco G, Xifra G, Karczewska-Kupczewska M, Stefanowicz M, Matulewicz N, Puig J, Ortega F, Ricart W, Straczkowski M, Fernández-Real JM. Obesity Is Associated With Gene Expression and Imaging Markers of Iron Accumulation in Skeletal Muscle. J Clin Endocrinol Metab 2016; 101:1282-9. [PMID: 26765579 DOI: 10.1210/jc.2015-3303] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Different genetic and imaging iron markers are known to be increased in the liver, adipose tissue, and brain of obese subjects. OBJECTIVE We aimed to investigate these markers in human skeletal muscle. DESIGN, SETTING, PATIENTS, AND OUTCOME MEASURES: Markers of iron accumulation were measured in three different territories: Iron gene markers (TFRC1, TF, SLC11A2, FTL, FTH1, and SLC40A1) were studied in abdominal rectus abdominis (Cohort 1, n = 26) and quadriceps (Cohort 2, n = 13) muscle using real-time PCR, whereas paravertebral muscle R2* signal (as surrogate of iron content) (Cohort 3, n = 43) was evaluated by means of magnetic resonance imaging. INTERVENTION In a subgroup of 14 obese participants from Cohort 3, a diet-induced weight loss was performed. RESULTS Rectus abdominis muscle age-adjusted gene expression of SLC40A1 (ferroportin) (r = 0.47; P = .04), SLC11A2 (r = 0.50; P = .03) and CYBA (r = 0.62; P = .006) increased with body fatness. In obese participants from Cohort 1, muscle CYBA gene expression was positively correlated with serum ferritin. This association was replicated in quadriceps from obese participants (Cohort 2). Paravertebral muscle R2* was positively associated with body mass index, waist circumference, and fat mass (measured by dual-energy x-ray absorptiometry) in parallel with hepatic iron content, serum ferritin, and hepcidin. In multivariate regression analyses, obesity parameters (P < .0001) and hsCRP concentration (P < .05) contributed independently to the variance of sex-, serum hepcidin- and age-adjusted muscle R2*. Of note, weight loss intervention resulted in decreased muscle R2* (P = .02) in correlation with the change of serum ferritin (r = 0.69; P = .01). CONCLUSIONS These findings emphasize a significant iron accumulation in human skeletal muscle in association with obesity. The mechanisms implicated in these observations should be studied further.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Gerard Blasco
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Monika Karczewska-Kupczewska
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Magdalena Stefanowicz
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Natalia Matulewicz
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Josep Puig
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - Marek Straczkowski
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition (J.M.M.-N., G.X., F.O., W.R., J.M.F.-R.), Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010) and Instituto de Salud Carlos III, Girona, 17007 Spain; Department of Radiology (G.B., J.P.), Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, 17007 Spain; Department of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Medical University of Białystok, 15-089 Białystok, Poland; and Department of Prophylaxis of Metabolic Diseases (M.K.-K., M.Ste., N.M., M.Str), Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-747 Olsztyn, Poland
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Fernández-Real JM, Blasco G, Puig J, Moreno M, Xifra G, Sánchez-Gonzalez J, Maria Alustiza J, Pedraza S, Ricart W, María Moreno-Navarrete J. Adipose tissue R2* signal is increased in subjects with obesity: A preliminary MRI study. Obesity (Silver Spring) 2016; 24:352-8. [PMID: 26813526 DOI: 10.1002/oby.21347] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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] [Received: 05/25/2015] [Revised: 08/28/2015] [Accepted: 08/29/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Circulating and adipose tissue markers of iron overload are increased in subjects with obesity. The aim is to study iron signals in adipose tissue. METHODS Adipose tissue R2* values and hepatic iron concentration (HIC) were evaluated using magnetic resonance imaging (MRI) in 23 middle-aged subjects with obesity and 20 subjects without obesity. RESULTS Subcutaneous (SAT) and visceral adipose tissue (VAT) R2* were increased in subjects with obesity (P = 0.004 and P = 0.008) and correlated significantly and positively with HIC in all subjects. Strikingly, most of the associations of liver iron with metabolic parameters were replicated with SAT and VAT R2*. BMI, waist circumference, fat mass, HOMA value, and C-reactive protein positively correlated with HIC and SAT and VAT R2*. BMI or percent fat mass (but not insulin resistance) contributed independently to 26.8-34.8% of the variance in sex- and age-adjusted SAT or VAT R2* (β > 0.40, P < 0.005). Within subjects with obesity, total cholesterol independently contributed to 14.8% of sex- and age-adjusted VAT iron variance (β = 0.50, P = 0.025). CONCLUSIONS Increased R2* in adipose tissue, which might indicate iron content, runs in parallel to liver iron stores of subjects with obesity. VAT iron seems also associated with serum cholesterol within subjects with obesity.
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Affiliation(s)
- José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Gerard Blasco
- Department of Radiology, Girona Biomedical Research Institute (IDIBGI)-Diagnostic Imaging Institute (IDI), Girona, Spain
| | - Josep Puig
- Department of Radiology, Girona Biomedical Research Institute (IDIBGI)-Diagnostic Imaging Institute (IDI), Girona, Spain
| | - Maria Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | | | - Jose Maria Alustiza
- Department of Liver and Gastrointestinal Diseases, Biodonostia Research Institute, Donostia University Hospital (HUD), University of the Basque Country (UPV/EHU), San Sebastian, Spain
| | - Salvador Pedraza
- Department of Radiology, Girona Biomedical Research Institute (IDIBGI)-Diagnostic Imaging Institute (IDI), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
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Ortega FJ, Vilallonga R, Xifra G, Sabater M, Ricart W, Fernández-Real JM. Bariatric surgery acutely changes the expression of inflammatory and lipogenic genes in obese adipose tissue. Surg Obes Relat Dis 2016; 12:357-62. [DOI: 10.1016/j.soard.2015.08.498] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 07/30/2015] [Accepted: 08/09/2015] [Indexed: 01/24/2023]
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Castellanos M, Xifra G, Fernández-Real JM, Sánchez JM. Breath gas concentrations mirror exposure to sevoflurane and isopropyl alcohol in hospital environments in non-occupational conditions. J Breath Res 2016; 10:016001. [PMID: 26824193 DOI: 10.1088/1752-7155/10/1/016001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Anaesthetic gases and disinfectants are a primary source of air contamination in hospitals. A highly sensitive sorbent-trap methodology has been used to analyse exhaled breath samples with detection limits in the pptv range, which allows volatile organic compounds (VOCs) to be detected at significantly lower levels (5-6 orders of magnitude below) than the recommended exposure limits by different organizations. Two common VOCs used in hospital environments, isopropyl alcohol (IPA) and sevoflurane, have been evaluated. Forced-expiratory breath samples were obtained from 100 volunteers (24 hospital staff, 45 hospital visitors and 31 external controls). Significant differences for IPA were found between samples from volunteers who had not been in contact with hospital environments (mean value of 8.032 ppbv) and people staying (20.981 ppbv, p = 0.0002) or working (19.457 ppbv, p = 0.000 09) in such an environment. Sevoflurane, an anaesthetic gas routinely used as an inhaled anaesthetic, was detected in all samples from volunteers in the hospital environment but not in volunteers who had not been in recent contact with a hospital environment. The levels of sevoflurane were significantly higher (p = 0.000 24) among staff members (0.522 ppbv) than among visitors to the hospital (0.196 ppbv). We conclude that highly sensitive methods are required to detect anaesthetic gas contamination in hospital environments.
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Affiliation(s)
- Mar Castellanos
- Servicio de Neurología, Complejo Hospitalario Universitario de A Coruña (CHUAC), A Coruña, Spain
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Moreno-Navarrete JM, Moreno M, Ortega F, Sabater M, Xifra G, Ricart W, Fernández-Real JM. CISD1 in association with obesity-associated dysfunctional adipogenesis in human visceral adipose tissue. Obesity (Silver Spring) 2016; 24:139-47. [PMID: 26692580 DOI: 10.1002/oby.21334] [Citation(s) in RCA: 20] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/05/2015] [Accepted: 08/14/2015] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To investigate CISD1 mRNA and protein in human adipose tissue in association with obesity and adipogenesis. METHODS Subcutaneous (SAT) and visceral (VAT) adipose tissue CISD1 gene expression (real-time PCR) and protein (Western blot) levels were investigated in human adipose tissue and during human adipocyte differentiation. RESULTS SAT and VAT CISD1 mRNA and protein levels were significantly decreased in subjects with obesity and negatively correlated with BMI after controlling for age and sex. In participants with morbid obesity, VAT CISD1 gene expression was positively correlated with insulin sensitivity (r = 0.47, P = 0.01), and bariatric surgery-induced weight loss led to increased SAT CISD1 mRNA levels. In both VAT and SAT, CISD1 gene expression was significantly associated with SIRT1, ISCA2, and mitochondrial biogenesis-related (PPARGC1A, TFAM, and MT-CO3) and browning-related (PRDM16 and UCP1) gene expression. In addition, VAT CISD1 gene expression was significantly associated with adipogenic and iron metabolism-related genes. Importantly, these correlations were replicated in a second cohort. At the cellular level, CISD1 gene expression increased during human adipocyte differentiation in correlation with adipogenic genes (r > 0.60, P < 0.005). CONCLUSIONS These data suggest a possible role of CISD1 in obesity-associated dysfunctional adipogenesis in human VAT.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Mònica Sabater
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut D'investigació Biomèdica De Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto De Salud Carlos III (ISCIII), Girona, Spain
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20
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Ortega FJ, Mercader JM, Moreno-Navarrete JM, Nonell L, Puigdecanet E, Rodriquez-Hermosa JI, Rovira O, Xifra G, Guerra E, Moreno M, Mayas D, Moreno-Castellanos N, Fernández-Formoso JA, Ricart W, Tinahones FJ, Torrents D, Malagón MM, Fernández-Real JM. Surgery-Induced Weight Loss Is Associated With the Downregulation of Genes Targeted by MicroRNAs in Adipose Tissue. J Clin Endocrinol Metab 2015; 100:E1467-76. [PMID: 26252355 DOI: 10.1210/jc.2015-2357] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 12/26/2022]
Abstract
CONTEXT Molecular mechanisms associated with physiological variations in adipose tissue (AT) are not fully recognized. The most recent reports highlight the critical relevance of microRNAs (miRNAs) found in AT. OBJECTIVE To identify changes in messenger RNA (mRNA) and miRNA expressions and their interaction in human AT before and after surgery-induced weight loss. Research Design and Setting: Genome-wide mRNA and miRNA expressions were assessed by microarrays in abdominal subcutaneous AT of 16 morbidly obese women before and 2 years after laparoscopic Roux-en-Y gastric bypass. The association of changes in miRNAs with their respective mRNA targets was studied. The results were replicated in publicly available microarray datasets. Validation was made by real-time polymerase chain reaction in additional fat samples from 26 age-matched lean women and in isolated human adipocytes. RESULTS A total of 5018 different mRNA probe sets and 15 miRNAs were differentially expressed after surgery-induced weight loss. The clustering of similar expression patterns for gene products with related functions revealed molecular footprints that elucidate significant changes in cell cycle, development, lipid metabolism, and the inflammatory response. The participation of inflammation was demonstrated by results assessed in isolated adipocytes. Interestingly, when transcriptomes were analyzed taking into account the presence of miRNA target sites, miRNA target mRNAs were upregulated in obese AT (P value = 2 × 10(-181)) and inflamed adipocytes (P value = 4 × 10(-61)), according to the number of target sites harbored by each transcript. CONCLUSIONS Current findings suggest impaired miRNA target gene expression in obese AT in close association with inflammation, both improving after weight loss.
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MESH Headings
- Adipocytes, White/cytology
- Adipocytes, White/immunology
- Adipocytes, White/metabolism
- Adult
- Body Mass Index
- Cell Line
- Cells, Cultured
- Cohort Studies
- Cross-Sectional Studies
- Down-Regulation
- Female
- Gastric Bypass
- Gene Expression Profiling
- Genome-Wide Association Study
- Humans
- Longitudinal Studies
- MicroRNAs/metabolism
- Middle Aged
- Monocytes/immunology
- Monocytes/metabolism
- Obesity, Morbid/genetics
- Obesity, Morbid/immunology
- Obesity, Morbid/metabolism
- Obesity, Morbid/surgery
- RNA, Messenger/metabolism
- Subcutaneous Fat, Abdominal/immunology
- Subcutaneous Fat, Abdominal/metabolism
- Weight Loss
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Affiliation(s)
- Francisco J Ortega
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Josep M Mercader
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - José M Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Lara Nonell
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Eulàlia Puigdecanet
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - José I Rodriquez-Hermosa
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Oscar Rovira
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Ester Guerra
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Dolores Mayas
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Natalia Moreno-Castellanos
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - José A Fernández-Formoso
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - Francisco J Tinahones
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - David Torrents
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - María M Malagón
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
| | - José M Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition (F.J.O., J.M.M.-N., O.R., G.X., E.G., M.M., W.R., J.M.R.-R.), Institut d'Investigació Biomédica de Girona, Girona, Spain; CIBER de la Fisiopatología de la Obesidad y la Nutrición and Instituto de Salud Carlos III (F.J.O., J.M.M.-N., O.R., D.M., N.M.-C., J.A.F.-F., W.R., F.J.T., M.M.M., J.M.F.-R.), Spain; Joint BSC-CRG-IRB Program on Computational Biology (J.M.M., D.T.), Barcelona Supercomputing Center, Barcelona, Spain; Servei d'Anàlisi de Microarrays (L.N., E.P.), Institut Hospital del Mar d'Investigacions Mèdiques, Barcelona, Spain; Department of Surgery (J.I.R.-H.), Institut d'Investigació Biomédica de Girona, Girona, Spain; Service of Endocrinology and Nutrition (D.M., F.J.T.), Hospital Clínico Universitario Virgen de Victoria de Malaga, Málaga, Spain; Department of Cell Biology, Physiology and Immunology (N.M.-C., M.M.M.), Instituto Maimonides de Investigaciones Biomedicas de Cordoba/Reina Sofia University Hospital, University of Cordoba, Cordoba, Spain; and Institució Catalana de Recerca i Estudis Avançats (D.T.), Barcelona, Spain
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Suárez-Ortegón MF, Moreno M, Arbeláez A, Xifra G, Mosquera M, Moreno-Navarrete JM, Aguilar-de Plata C, Esteve E, Ricart W, Fernández-Real JM. Circulating hepcidin in type 2 diabetes: A multivariate analysis and double blind evaluation of metformin effects. Mol Nutr Food Res 2015; 59:2460-70. [PMID: 26394887 DOI: 10.1002/mnfr.201500310] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 09/02/2015] [Accepted: 09/04/2015] [Indexed: 12/13/2022]
Abstract
SCOPE Very few studies have evaluated serum hepcidin in patients with type 2 diabetes and they have reported conflicting results. In addition, the effect of antidiabetic drugs on circulating hepcidin has not been explored so far. The aims of the study were to evaluate hepcidin concentrations and hepcidin/ferritin ratio in type 2 diabetes subjects and healthy non-diabetic controls and to evaluate the effect of metformin on hepcidin concentrations. METHODS AND RESULTS Study 1: Cross-sectional multivariate study of 239 non-diabetic individuals and 65 people with type 2 diabetes. The multivariate analysis included covariates of chronic inflammation, BMI, pharmacological treatment, menopausal status and insulin resistance. Study 2: Randomized, double-blinded, placebo-controlled 4-month trial metformin compared to placebo among 36 type 2 diabetic patients. In both groups diet was controlled by maintaining a hypocaloric intake across the trial. Hepcidin levels were significantly lower in patients with type 2 diabetes than in non-diabetic individuals either in crude or adjusted regression models (P<0.05). Hepcidin decreased in both arms of the trial (Placebo, p = 0.004; metformin, p = 0.022). CONCLUSION Circulating hepcidin was significantly and independently lower in type 2 diabetes. Metformin treatment is not associated with reductions in hepcidin but hypocaloric diet could be involved.
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Affiliation(s)
- Milton Fabián Suárez-Ortegón
- Centre for Population Health Sciences, University of Edinburgh, Edinburgh, UK.,Nutrition Group, Universidad del Valle, Cali, Colombia
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Alejandra Arbeláez
- Nutrition Group, Universidad del Valle, Cali, Colombia.,Physiological Sciences Department, Universidad del Valle, Cali, Colombia
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Mildrey Mosquera
- Nutrition Group, Universidad del Valle, Cali, Colombia.,Physiological Sciences Department, Universidad del Valle, Cali, Colombia
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Cecilia Aguilar-de Plata
- Nutrition Group, Universidad del Valle, Cali, Colombia.,Physiological Sciences Department, Universidad del Valle, Cali, Colombia
| | - Eduardo Esteve
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
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22
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Moreno M, Puig J, Moreno-Navarrete JM, Xifra G, Ortega F, Ricart W, Fernández-Real JM. Lean mass, and not fat mass, is an independent determinant of carotid intima media thickness in obese subjects. Atherosclerosis 2015; 243:493-8. [PMID: 26520905 DOI: 10.1016/j.atherosclerosis.2015.09.012] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/06/2015] [Accepted: 09/07/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIMS Obesity is an important determinant of increased cardiovascular risk. Increased fat mass has been assumed to constitute the main prominent contributor to changes in carotid intima-media thickness (c-IMT). METHODS In 421 consecutive subjects (301 women), c-IMT was evaluated ultrasonographically in 6 independent territories and body composition was assessed by dual-energy X-ray absorptiometry. RESULTS c-IMT was positively associated with lean body mass in both men (r = 0.328, p = <0.0001) and women (r = 0.268 p = <0.0001) and increased across lean mass quartiles (p = <0.0001 for linear-trend ANOVA). Stepwise linear regression analysis showed that age and lean mass (but not fat mass or traditional cardiovascular risk factors) contributed to 46.2% of c-IMT variance in men (p = <0.0001). Even within obese men, lean mass was an independent contributor to c-IMT variance. Among women, age, lean mass and ultrasensitive CRP levels contributed independently to 47.7% of c-IMT variance (p < 0.0001). CONCLUSIONS Lean mass, and not fat mass, might contribute to increase c-IMT in obese patients independently of classical atherosclerotic risk factors. These data reinforce the concept that the increase in metabolically fat-free mass that accompanies the body weight enlargement is closely related to the raise in blood pressure.
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Affiliation(s)
- María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Josep Puig
- Department of Radiology, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.
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Puig J, Blasco G, Daunis-I-Estadella J, Loshuertos E, Codina J, Cuba V, Ortiz R, Xifra G, Ricart W, Pedraza S, Federici M, Fernández-Real JM. Nonalcoholic fatty liver disease and age are strong indicators for atherosclerosis in morbid obesity. Clin Endocrinol (Oxf) 2015; 83:180-6. [PMID: 25510350 DOI: 10.1111/cen.12698] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 09/15/2014] [Accepted: 12/07/2014] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Whether nonalcoholic fatty liver disease (NAFLD) can predict atherosclerosis in obese patients remains unclear. The aim of our study was to investigate the usefulness of NAFLD and other cardiometabolic parameters in predicting subclinical atherosclerosis in obese patients. DESIGN, PATIENTS AND MEASUREMENTS We studied 314 consecutive obese subjects (223 women; mean age, 45·04 ± 9·34 years; body mass index 44·3 ± 5 kg/m(2) ) and 47 healthy lean individuals. Hepatic steatosis and atherosclerosis [carotid intima-media thickness (cIMT) >0·8 mm and/or presence of plaques] were evaluated ultrasonographically. Liver biopsies were obtained in 51 patients. RESULTS In obese patients, mean c-IMT was greater in those with NAFLD (P < 0·001). Hepatic steatosis and age were independent predictors of atherosclerosis: the NAFLD-associated OR for atherosclerosis was 5·96 (95%CI, 1·60-22·25; P = 0·008) in men and 8·26 (95%CI, 4·02-16·99; P < 0·001) in women, and the age-associated OR for atherosclerosis was 1·14 (95%CI, 1·07-1·22; P < 0·001) in men and 1·12 (95%CI, 1·08-1·17; P < 0·001) in women. The sensitivity, specificity and positive and negative predictive values of steatosis for atherosclerosis were 78·70%, 70·50%, 74·00% and 75·60% (AUC = 0·840) in men ≥43·5 years and 86·90%, 52·50%, 68·80% and 76·80% (AUC = 0·761) in women ≥47·5 years, respectively. Agreement between ultrasound-diagnosed steatosis and histology was good (ICC = 0·79). Combined NAFLD and age was the strongest predictor of atherosclerosis in obesity. CONCLUSIONS Nonalcoholic fatty liver disease and age may be independent risk factors for carotid atherosclerosis in obese individuals. Obese men and women with steatosis aged over 43·5 and 47·5 years, respectively, should be screened for carotid atherosclerosis. However, further evidence is necessary before suggesting an intervention based on current findings.
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Affiliation(s)
- Josep Puig
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Gerard Blasco
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Josep Daunis-I-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Emili Loshuertos
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Jaume Codina
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Víctor Cuba
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Rosa Ortiz
- Department of Pathology, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Salvador Pedraza
- Department of Radiology (IDI), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Massimo Federici
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
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Moreno-Navarrete JM, Ortega F, Moreno M, Xifra G, Ricart W, Fernández-Real JM. PRDM16 sustains white fat gene expression profile in human adipocytes in direct relation with insulin action. Mol Cell Endocrinol 2015; 405:84-93. [PMID: 25662275 DOI: 10.1016/j.mce.2015.01.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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] [Received: 10/13/2014] [Revised: 01/22/2015] [Accepted: 01/29/2015] [Indexed: 01/08/2023]
Abstract
In the present study, we aimed to evaluate the possible role of PRDM16 in human adipocytes and in whole adipose tissue according to obesity and insulin sensitivity. PRDM16 knockdown (KD) had a dual behavior. While KD in preadipocytes led to enhanced gene expression markers of adipocyte differentiation, PRDM16 KD in fully differentiated adipocytes resulted in decreased adipogenic gene expression and insulin action. In line with KD in adipocytes, PRDM16 was positively associated with the expression of several genes involved in adipogenesis, insulin signaling, mitochondrial function and brown adipocyte-related markers in whole adipose tissue from two independent cohorts. PRDM16 was decreased in obese subjects in relation with the decrease of insulin sensitivity [HOM(AIR) (cohort 1) and M clamp value (cohort 2)]. Rosiglitazone (5 µmol/l) and metformin (5 mmol/l) led to increased PRDM16 mRNA and protein levels in isolated human adipocytes and in whole adipose tissue. In conclusion, PRDM16 might contribute to maintain adipose tissue "white fat" gene expression profile and systemic metabolic homeostasis.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain.
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), Instituto de Salud Carlos III (ISCIII), Girona 17007, Spain.
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Moreno-Navarrete JM, Moreno M, Vidal M, Ortega F, Serrano M, Xifra G, Ricart W, Fernández-Real JM. Deleted in breast cancer 1 plays a functional role in adipocyte differentiation. Am J Physiol Endocrinol Metab 2015; 308:E554-61. [PMID: 25648830 DOI: 10.1152/ajpendo.00286.2014] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 01/23/2015] [Indexed: 11/22/2022]
Abstract
Genetic deletion of Dbc1 in mice reduced adipose tissue senescence and inflammation while promoting an expansion of this tissue. Here, we aimed to investigate DBC1 mRNA and protein levels in human adipose tissue from subjects with a wide spectrum of fat mass (cohort 1; n = 105) and insulin resistance (cohort 2; n = 47); we also investigated the effects of DBC1 knockdown on 3T3-L1 adipocyte differentiation. DBC1 mRNA was relatively abundant in both visceral (VAT) and subcutaneous adipose tissue (SAT) (mainly in the adipocyte fraction), being decreased in adipose tissue from obese compared with lean subjects. In both VAT and SAT, DBC1 mRNA levels were negatively associated with BMI and positively associated with age and the expression of PPARγ, GLUT4, IRS1, lipogenic (FASN, ACACA), lipid droplet-associated genes (PLIN1, FSP27, ADRP, and TIP47), and lipolytic (ABDH5, AKAP, and PRKACA) genes but negatively associated with ADIPOQ in VAT. DBC1 mRNA and protein levels were increased in the early stages of adipocyte differentiation of human and 3T3-L1 adipocytes. Dbc1 knockdown (KD) with lentivirus led to enhanced adipocyte differentiation, increasing intracellular lipid accumulation and adipogenic gene expression. In conclusion, although DBC1 gene expression was reduced in adipose tissue from obese subjects, it was negatively associated with ADIPOQ gene expression in VAT, suggesting that DBC1 might promote visceral adipose tissue dysfunction. In vitro data supported the antiadipogenic effects of DBC1.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - María Moreno
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - Marta Vidal
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - Marta Serrano
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigacion Biomedica en Red Fisiopatologia de Obesidad y Nutricion (CB06/03/010) and Instituto de Salud Carlos III, Girona, Spain
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Puig J, Blasco G, Daunis-I-Estadella J, Molina X, Xifra G, Ricart W, Pedraza S, Fernández-Aranda F, Fernández-Real JM. Hypothalamic damage is associated with inflammatory markers and worse cognitive performance in obese subjects. J Clin Endocrinol Metab 2015; 100:E276-81. [PMID: 25423565 DOI: 10.1210/jc.2014-2682] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 02/13/2023]
Abstract
CONTEXT Growing evidence implicates hypothalamic inflammation in the pathogenesis of diet-induced obesity and cognitive dysfunction in rodent models. Few studies have addressed the association between obesity and hypothalamic damage in humans and its relevance. OBJECTIVE This study aimed to determine markers of obesity-associated hypothalamic damage on diffusion tensor imaging (DTI) and to determine whether DTI metrics are associated with performance on cognitive testing. DESIGN AND PARTICIPANTS This cross-sectional study analyzed DTI metrics (primary [λ(1)], secondary [λ(2)], and tertiary [λ(3)] eigenvalues; fractional anisotropy; and mean diffusivity) in the hypothalamus of 24 consecutive middle-age obese subjects (13 women; 49.8 ± 8.1 y; body mass index [BMI], 43.9 ± 0.92 kg/m(2)) and 20 healthy volunteers (10 women; 48.8 ± 9.5 y; BMI, 24.3 ± 0.79 kg/m(2)). OUTCOME measures: Hypothalamic damage assessed by DTI metrics and cognitive performance evaluated by neuropsychological test battery. RESULTS λ(1) values in the hypothalamus were significantly lower in obese subjects (P < .0001). The sensitivity, specificity, and positive and negative predictive values for obesity-associated hypothalamic damage by λ(1) < 1.072 were 75, 87.5, 83.3, and 80.7%, respectively. Patients with hypothalamic λ(1) < 1.072 had higher values of BMI, fat mass, inflammatory markers, carotid-intima media thickness, and hepatic steatosis and lower scores on cognitive tests. Combined BMI and alanine aminotransferase had the strongest association with hypothalamic damage reflected by λ(1) < 1.072 (area under the curve = 0.89). CONCLUSIONS DTI detects obesity-associated hypothalamic damage associated with inflammatory markers and worse cognitive performance. This study highlights the potential utility of λ(1) as a surrogate marker of obesity-associated hypothalamic damage.
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Affiliation(s)
- Josep Puig
- Department of Radiology (J.P., G.B., X.M., S.P.), Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta. Girona, Spain; Department of Computer Science, Applied Mathematics and Statistics (J.D.-i.-E.), University of Girona. Girona, Spain; Department of Diabetes, Endocrinology and Nutrition (J.P., G.X., W.R., J.M.F.-R.), IDIBGI, Hospital Universitari de Girona Dr Josep Trueta, and CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn). Girona, Spain; and Department of Psychiatry (F.F.-A.), Hospital Universitari de Bellvitge, and CIBERobn, Barcelona, Spain
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Moreno M, Ortega F, Xifra G, Ricart W, Fernández-Real JM, Moreno-Navarrete JM. Cytosolic aconitase activity sustains adipogenic capacity of adipose tissue connecting iron metabolism and adipogenesis. FASEB J 2014; 29:1529-39. [PMID: 25550467 DOI: 10.1096/fj.14-258996] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 12/09/2014] [Indexed: 12/22/2022]
Abstract
To gain insight into the regulation of intracellular iron homeostasis in adipose tissue, we investigated the role of iron regulatory protein 1/cytosolic aconitase 1 (ACO1). ACO1 gene expression and activity increased in parallel to expression of adipogenic genes during differentiation of both murine 3T3-L1 cells and human preadipocytes. Lentiviral knockdown (KD) of Aco1 in 3T3-L1 preadipocytes led to diminished cytosolic aconitase activity and isocitrate dehydrogenase 1 (NADP(+)), soluble (Idh1) mRNA levels, decreased intracellular NADPH:NADP ratio, and impaired adipogenesis during adipocyte differentiation. In addition, Aco1 KD in fully differentiated 3T3-L1 adipocytes decreased lipogenic, Idh1, Adipoq, and Glut4 gene expression. A bidirectional cross-talk was found between intracellular iron levels and ACO1 gene expression and protein activity. Although iron in excess, known to increase reactive oxygen species production, and iron depletion both resulted in decreased ACO1 mRNA levels and activity, Aco1 KD led to reduced gene expression of transferrin receptor (Tfrc) and transferrin, disrupting intracellular iron uptake. In agreement with these findings, in 2 human independent cohorts (n = 85 and n = 38), ACO1 gene expression was positively associated with adipogenic markers in subcutaneous and visceral adipose tissue. ACO1 gene expression was also positively associated with the gene expression of TFRC while negatively linked to ferroportin (solute carrier family 40 (iron-regulated transporter), member 1) mRNA levels. Altogether, these results suggest that ACO1 activity is required for the normal adipogenic capacity of adipose tissue by connecting iron, energy metabolism, and adipogenesis.
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Affiliation(s)
- María Moreno
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona, CIBEROBN (CB06/03/010), and Instituto de Salud Carlos III, Girona, Spain
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Blasco G, Puig J, Daunis-I-Estadella J, Molina X, Xifra G, Fernández-Aranda F, Pedraza S, Ricart W, Portero-Otín M, Fernández-Real JM. Brain iron overload, insulin resistance, and cognitive performance in obese subjects: a preliminary MRI case-control study. Diabetes Care 2014; 37:3076-83. [PMID: 25125507 DOI: 10.2337/dc14-0664] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The linkage among the tissue iron stores, insulin resistance (IR), and cognition remains unclear in the obese population. We aimed to identify the factors that contribute to increased hepatic iron concentration (HIC) and brain iron overload (BIO), as evaluated by MRI, and to evaluate their impact on cognitive performance in obese and nonobese subjects. RESEARCH DESIGN AND METHODS We prospectively recruited 23 middle-aged obese subjects without diabetes (13 women; age 50.4 ± 7.7 years; BMI 43.7 ± 4.48 kg/m2) and 20 healthy nonobese volunteers (10 women; age 48.8 ± 9.5 years; BMI 24.3 ± 3.54 kg/m2) in whom iron load was assessed in white and gray matter and the liver by MRI. IR was measured from HOMA-IR and an oral glucose tolerance test. A battery of neuropsychological tests was used to evaluate the cognitive performance. Multivariate regression analysis was used to identify the independent associations of BIO and cognitive performance. RESULTS A significant increase in iron load was detected at the caudate nucleus (P < 0.001), lenticular nucleus (P = 0.004), hypothalamus (P = 0.002), hippocampus (P < 0.001), and liver (P < 0.001) in obese subjects. There was a positive correlation between HIC and BIO at caudate (r = 0.517, P < 0.001), hypothalamus (r = 0.396, P = 0.009), and hippocampus (r = 0.347, P < 0.023). The area under the curve of insulin was independently associated with BIO at the caudate (P = 0.001), hippocampus (P = 0.028), and HIC (P = 0.025). BIOs at the caudate (P = 0.028), hypothalamus (P = 0.006), and lenticular nucleus (P = 0.012) were independently associated with worse cognitive performance. CONCLUSIONS Obesity and IR may contribute to increased HIC and BIO being associated with worse cognitive performance. BIO could be a potentially useful MRI biomarker for IR and obesity-associated cognitive dysfunction.
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Affiliation(s)
- Gerard Blasco
- Department of Radiology, Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, Spain
| | - Josep Puig
- Department of Radiology, Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, Spain
| | - Josep Daunis-I-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Xavier Molina
- Department of Radiology, Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, Spain
| | - Gemma Xifra
- Diabetes, Endocrinology and Nutrition Group, Girona Biomedical Research Institute, Dr. Trueta University Hospital, and Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Fernando Fernández-Aranda
- Department of Psychiatry, Hospital de Bellvitge-Institut d'Investigació Biomèdica de Bellvitge and Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBERobn), Barcelona, Spain
| | - Salvador Pedraza
- Department of Radiology, Girona Biomedical Research Institute, Diagnostic Imaging Institute, Girona, Spain
| | - Wifredo Ricart
- Diabetes, Endocrinology and Nutrition Group, Girona Biomedical Research Institute, Dr. Trueta University Hospital, and Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
| | - Manuel Portero-Otín
- Nutren Group, Department of Experimental Medicine, Lleida Agri-Food Science and Technological Park-Biomedical Research Institute of Lleida-Universitat de Lleida, Lleida, Spain
| | - José Manuel Fernández-Real
- Diabetes, Endocrinology and Nutrition Group, Girona Biomedical Research Institute, Dr. Trueta University Hospital, and Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBERobn), Girona, Spain
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Serrano M, Moreno M, Ortega FJ, Xifra G, Ricart W, Moreno-Navarrete JM, Fernández-Real JM. Adipose tissue μ-crystallin is a thyroid hormone-binding protein associated with systemic insulin sensitivity. J Clin Endocrinol Metab 2014; 99:E2259-68. [PMID: 25057873 DOI: 10.1210/jc.2014-1327] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 02/05/2023]
Abstract
BACKGROUND Circulating thyroid hormones have been described to be intrinsically associated with insulin sensitivity in healthy subjects. μ-Crystallin is a nicotinamide adenine dinucleotide phosphate-dependent thyroid hormone-binding protein that has been shown to bind T3 in the cytoplasm. We aimed to study μ-Crystallin expression in adipose tissue and in muscle in association with insulin action and thyroid function. METHODS μ-Crystallin gene expression was studied in 81 visceral and 75 sc adipose tissue samples and in 26 muscle samples from a cohort of subjects with a wide spectrum of adiposity (cohort 1). μ-Crystallin was also evaluated in 30 morbidly obese subjects in whom insulin action was evaluated using euglycemic clamp (cohort 2) and in 22 sc adipose tissue samples obtained before and after bariatric surgery-induced weight loss (cohort 3). μ-Crystallin was also evaluated during differentiation of human adipocytes. μ-Crystallin was overexpressed in human sc adipocytes using lentiviruses. RESULTS μ-Crystallin gene expression was 2.6- to 3-fold higher in sc vs visceral adipose tissue in direct association with the expression of thyroid hormone receptor α 1 in cohort 1 and cohort 2. Visceral, but not sc, adipose tissue μ-Crystallin was positively associated with the serum T3/T4 ratio in cohort 1 and with insulin sensitivity in cohort 2. In fact, μ-Crystallin gene expression was significantly decreased in visceral adipose tissue (-43%) and in muscle (-26%) in subjects with impaired fasting glucose and type 2 diabetes. Weight loss did not result in significant sc adipose tissue μ-Crystallin changes. μ-Crystallin overexpression led to increased insulin-induced (Ser473)Akt phosphorylation in sc adipocytes. During differentiation of adipocytes, μ-Crystallin gene expression decreased in both visceral (P = .006) and sc (P = .003) adipocytes from obese subjects. CONCLUSION Visceral, but not sc, adipose tissue μ-Crystallin is an adipose tissue factor linked to parameters of thyroid hormone action (T3/T4 ratio) and might mediate the interaction of thyroid function and insulin sensitivity.
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Affiliation(s)
- Marta Serrano
- Department of Diabetes, Endocrinology, and Nutrition, Institut d'Investigació Biomèdica de Girona, Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CB06/03/010), and Instituto de Salud Carlos III, 17007 Girona, Spain
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Ortega FJ, Serrano M, Rodriguez-Cuenca S, Moreno-Navarrete JM, Gómez-Serrano M, Sabater M, Rodriguez-Hermosa JI, Xifra G, Ricart W, Peral B, Vidal-Puig A, Fernández-Real JM. Transducin-like enhancer of split 3 (TLE3) in adipose tissue is increased in situations characterized by decreased PPARγ gene expression. J Mol Med (Berl) 2014; 93:83-92. [PMID: 25249007 DOI: 10.1007/s00109-014-1207-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/26/2014] [Accepted: 09/02/2014] [Indexed: 01/14/2023]
Abstract
UNLABELLED Transgenic overexpression of adipose tissue (AT) transducin-like enhancer of split 3 (TLE3) mimicked peroxisome proliferator-activated receptor gamma (PPARγ) agonists, improving insulin resistance in mice. This study aimed to investigate TLE3 gene expression (qRT-PCR) and protein (Western blot) in subjects with a wide spectrum of obesity and insulin sensitivity and in an independent cohort of obese subjects following surgery-induced weight loss. TLE3 was analyzed in human adipocytes and after treatment with rosiglitazone. Given the findings in humans, TLE3 was also investigated in mice after a high-fat diet (HFD) and in PPARγ knockout mice. Subcutaneous (SC) AT TLE3 was increased in subjects with type 2 diabetes (T2D). In fact, SC TLE3 was associated with increased fasting glucose (r = 0.25, p = 0.015) and S6K1 activity (r = 0.671, p = 0.003), and with decreased Glut4 (r = -0.426, p = 0.006) and IRS-1 expression (-31 %, p = 0.007) and activation (P-IRS-1/IRS-1, -17 %, p = 0.024). TLE3 was preferentially expressed in mature adipocytes and increased during in vitro differentiation in parallel to PPARγ. Weight loss led to improved insulin sensitivity, increased AT PPARγ and decreased TLE3 (-24 %, p = 0.0002), while rosiglitazone administration downregulated TLE3 gene expression in fully differentiated adipocytes (-45 %, p < 0.0001). The concept that TLE3 may act as a homeostatic linchpin in AT was also supported by its increased expression in HFD-fed mice (39 %, p = 0.013) and PPARγ knockout (74 %, p = 0.001). In summary, increased AT TLE3 in subjects with T2D and in AT from HFD-fed and PPARγ knockout mice suggest that TLE3 may play an adaptive regulatory role that improves AT function under decreased PPARγ expression. KEY MESSAGE TLE3 is expressed in mature adipocytes concomitantly with PPARγ. Subcutaneous adipose TLE3 is increased in T2D patients. Adipose TLE3 is upregulated in genetically ablated PPARγ and HFD-fed mice. TLE3 may be a homeostatic linchpin in insulin resistance and defective PPARγ.
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Affiliation(s)
- Francisco José Ortega
- Department of Diabetes, Endocrinology and Nutrition (UDEN), Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBERobn (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Carretera de França s/n, 17007, Girona, Spain,
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Moreno-Navarrete JM, Novelle MG, Catalán V, Ortega F, Moreno M, Gomez-Ambrosi J, Xifra G, Serrano M, Guerra E, Ricart W, Frühbeck G, Diéguez C, Fernández-Real JM. Insulin resistance modulates iron-related proteins in adipose tissue. Diabetes Care 2014; 37:1092-100. [PMID: 24496804 DOI: 10.2337/dc13-1602] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Circulating markers of iron overload are associated with insulin resistance. Less is known about the impact of iron overload on adipose tissue (AT). We hypothesized that gene expression markers of iron metabolism in AT could be associated with insulin action. RESEARCH DESIGN AND METHODS The AT expression of ferroportin (SLC40A1), transferrin (TF), TF receptor (TFRC), ferritin (FT) heavy polypeptide 1 (FTH1), and FT light polypeptide (FTL) was analyzed cross-sectionally in three independent cohorts and also after weight loss-induced changes in insulin sensitivity (clamp M value) in an independent fourth cohort. RESULTS In human AT, TF mRNA and protein levels were decreased with obesity and insulin resistance in the three cohorts and were positively associated with adipogenic mRNAs and insulin action. Otherwise, FTL mRNA and protein and SLC40A1 transcripts were positively associated with BMI and negatively linked to adipogenic genes and insulin action. Bariatric surgery-induced weight loss led to increased TF and decreased TFRC, FTH1, FTL, and SLC40A1 in subcutaneous AT in parallel to improved insulin action. CONCLUSIONS These results suggest that iron overload impacts on AT in association with insulin resistance.
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Ortega FJ, Mercader JM, Moreno-Navarrete JM, Rovira O, Guerra E, Esteve E, Xifra G, Martínez C, Ricart W, Rieusset J, Rome S, Karczewska-Kupczewska M, Straczkowski M, Fernández-Real JM. Profiling of circulating microRNAs reveals common microRNAs linked to type 2 diabetes that change with insulin sensitization. Diabetes Care 2014; 37:1375-83. [PMID: 24478399 DOI: 10.2337/dc13-1847] [Citation(s) in RCA: 268] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE This study sought to identify the profile of circulating microRNAs (miRNAs) in type 2 diabetes (T2D) and its response to changes in insulin sensitivity. RESEARCH DESIGN AND METHODS The circulating miRNA profile was assessed in a pilot study of 12 men: 6 with normal glucose tolerance (NGT) and 6 T2D patients. The association of 10 circulating miRNAs with T2D was cross-sectionally validated in an extended sample of 45 NGT vs. 48 T2D subjects (65 nonobese and 28 obese men) and longitudinally in 35 T2D patients who were recruited in a randomized, double-blinded, and placebo-controlled 3-month trial of metformin treatment. Circulating miRNAs were also measured in seven healthy volunteers before and after a 6-h hyperinsulinemic-euglycemic clamp and insulin plus intralipid/heparin infusion. RESULTS Cross-sectional studies disclosed a marked increase of miR-140-5p, miR-142-3p, and miR-222 and decreased miR-423-5p, miR-125b, miR-192, miR-195, miR-130b, miR-532-5p, and miR-126 in T2D patients. Multiple linear regression analyses revealed that miR-140-5p and miR-423-5p contributed independently to explain 49.5% (P < 0.0001) of fasting glucose variance after controlling for confounders. A discriminant function of four miRNAs (miR-140-5p, miR-423-5p, miR-195, and miR-126) was specific for T2D with an accuracy of 89.2% (P < 0.0001). Metformin (but not placebo) led to significant changes in circulating miR-192 (49.5%; P = 0.022), miR-140-5p (-15.8%; P = 0.004), and miR-222 (-47.2%; P = 0.03), in parallel to decreased fasting glucose and HbA1c. Furthermore, while insulin infusion during clamp decreased miR-222 (-62%; P = 0.002), the intralipid/heparin mixture increased circulating miR-222 (163%; P = 0.015) and miR-140-5p (67.5%; P = 0.05). CONCLUSIONS This study depicts the close association between variations in circulating miRNAs and T2D and their potential relevance in insulin sensitivity.
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Xifra G, Mauri S, Gironès J, Rodríguez Hermosa JI, Oriola J, Ricart W, Fernández-Real JM. Multiple Hürthle cell adenomas in a patient with thyroid hormone resistance. Endocrinol Diabetes Metab Case Rep 2013; 2013:130032. [PMID: 24683474 PMCID: PMC3965282 DOI: 10.1530/edm-13-0032] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 11/26/2013] [Indexed: 11/12/2022] Open
Abstract
Background: Thyroid hormone resistance (RTH) is a rare cause of thyroid dysfunction. High TSH levels, as described in RTH syndrome, are known to be associated with an increased risk of developing thyroid nodules with subsequent growth and malignancy. Patient findings: In 2006, a 29-year-old Caucasian man presented with a palpable mass in the neck. Increased free thyroxine and triiodothyronine levels were found in the context of unsuppressed TSH levels, despite no signs or symptoms of hyperthyroidism. Ultrasonography revealed a multinodular and enlarged goitre, and fine-needle aspiration cytology revealed suspicious features of malignancy. After excluding pituitary tumour and levothyroxine (l-T4) treatment, the patient was diagnosed with generalized RTH. Screening for all the known mutations in thyroid hormone receptor-β (TRβ (THRB)) was negative. Thyroidectomy disclosed five Hürthle adenomas and three hyperplasic nodules. Euthyroidism was achieved after surgery with 6.1 μg/kg per day of l-T4. Conclusion: RTH may be a risk factor that predisposes to the development of multiple Hürthle cell adenomas. To our knowledge, this is the first case of multiple Hürthle cell adenomas in a patient with RTH.
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Affiliation(s)
- Gemma Xifra
- Department of Diabetes, Endocrinology and Nutrition Hospital Dr Josep Trueta Girona Spain
| | - Silvia Mauri
- Department of Diabetes, Endocrinology and Nutrition Hospital Dr Josep Trueta Girona Spain
| | - Jordi Gironès
- Department of Surgery Hospital Dr Josep Trueta Girona Spain
| | | | - Josep Oriola
- Biochemistry and Molecular Genetics Department CDB Hospital Clinic Barcelona Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition Hospital Dr Josep Trueta Girona Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition Hospital Dr Josep Trueta Girona Spain ; CIBERobn, patophysiology of obesity and nutrition Spain
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Moreno-Navarrete JM, Escoté X, Ortega F, Serino M, Campbell M, Michalski MC, Laville M, Xifra G, Luche E, Domingo P, Sabater M, Pardo G, Waget A, Salvador J, Giralt M, Rodriguez-Hermosa JI, Camps M, Kolditz CI, Viguerie N, Galitzky J, Decaunes P, Ricart W, Frühbeck G, Villarroya F, Mingrone G, Langin D, Zorzano A, Vidal H, Vendrell J, Burcelin R, Vidal-Puig A, Fernández-Real JM. A role for adipocyte-derived lipopolysaccharide-binding protein in inflammation- and obesity-associated adipose tissue dysfunction. Diabetologia 2013; 56:2524-37. [PMID: 23963324 DOI: 10.1007/s00125-013-3015-9] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Accepted: 07/10/2013] [Indexed: 01/12/2023]
Abstract
AIMS/HYPOTHESIS Circulating lipopolysaccharide-binding protein (LBP) is an acute-phase reactant known to be increased in obesity. We hypothesised that LBP is produced by adipose tissue (AT) in association with obesity. METHODS LBP mRNA and LBP protein levels were analysed in AT from three cross-sectional (n = 210, n = 144 and n = 28) and three longitudinal (n = 8, n = 25, n = 20) human cohorts; in AT from genetically manipulated mice; in isolated adipocytes; and in human and murine cell lines. The effects of a high-fat diet and exposure to lipopolysaccharide (LPS) and peroxisome proliferator-activated receptor (PPAR)γ agonist were explored. Functional in vitro and ex vivo experiments were also performed. RESULTS LBP synthesis and release was demonstrated to increase with adipocyte differentiation in human and mouse AT, isolated adipocytes and human and mouse cell lines (Simpson-Golabi-Behmel syndrome [SGBS], human multipotent adipose-derived stem [hMAD] and 3T3-L1 cells). AT LBP expression was robustly associated with inflammatory markers and increased with metabolic deterioration and insulin resistance in two independent cross-sectional human cohorts. AT LBP also increased longitudinally with weight gain and excessive fat accretion in both humans and mice, and decreased with weight loss (in two other independent cohorts), in humans with acquired lipodystrophy, and after ex vivo exposure to PPARγ agonist. Inflammatory agents such as LPS and TNF-α led to increased AT LBP expression in vivo in mice and in vitro, while this effect was prevented in Cd14-knockout mice. Functionally, LBP knockdown using short hairpin (sh)RNA or anti-LBP antibody led to increases in markers of adipogenesis and decreased adipocyte inflammation in human adipocytes. CONCLUSIONS/INTERPRETATION Collectively, these findings suggest that LBP might have an essential role in inflammation- and obesity-associated AT dysfunction.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Hospital Universitari 'Dr Josep Trueta', Carretera de França s/n, 17007, Girona, Spain
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Fernández-Real JM, Puig J, Serrano M, Sabater M, Rubió A, Moreno-Navarrete JM, Fontan M, Casamitjana R, Xifra G, Ortega FJ, Salvador J, Frühbeck G, Ricart W. Iron and obesity status-associated insulin resistance influence circulating fibroblast-growth factor-23 concentrations. PLoS One 2013; 8:e58961. [PMID: 23555610 PMCID: PMC3605441 DOI: 10.1371/journal.pone.0058961] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 02/08/2013] [Indexed: 12/31/2022] Open
Abstract
Fibroblast growth factor 23 (FGF-23) is known to be produced by the bone and linked to metabolic risk. We aimed to explore circulating FGF-23 in association with fatness and insulin sensitivity, atherosclerosis and bone mineral density (BMD). Circulating intact FGF-23 (iFGF-23) and C-terminal (CtFGF-23) concentrations (ELISA) were measured in 133 middle aged men from the general population in association with insulin sensitivity (Cohort 1); and in association with fat mass and bone mineral density (DEXA) and atherosclerosis (intima media thickness, IMT) in 78 subjects (52 women) with a wide range of adiposity (Cohort 2). Circulating iFGF-23 was also measured before and after weight loss. In all subjects as a whole, serum intact and C-terminal concentrations were linearly and positively associated with BMI. In cohort 1, both serum iFGF-23 and CtFGF-23 concentrations increased with insulin resistance. Serum creatinine contributed to iFGF-23 variance, while serum ferritin and insulin sensitivity (but not BMI, age or serum creatinine) contributed to 17% of CtFGF-23 variance. In cohort 2, CtFGF-23 levels were higher in women vs. men, and increased with BMI, fat mass, fasting and post-load serum glucose, insulin, HOMA-IR and PTH, being negatively associated with circulating vitamin D and ferritin levels. The associations of CtFGF-23 with bone density in the radius, lumbar spine and carotid IMT were no longer significant after controlling for BMI. Weight loss led to decreased iFGF-23 concentrations. In summary, the associations of circulating FGF-23 concentration with parameters of glucose metabolism, bone density and atherosclerosis are dependent on iron and obesity status-associated insulin resistance.
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Affiliation(s)
- José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomédica de Girona, CIBERobn Fisiopatología de la Obesidad y Nutrición CB06/03/010, Girona, Spain.
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