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Vázquez-Solórzano R, Enciso-Ramírez MA, Sánchez-Caballero B, Parra-Rojas I, Valdés-Miramontes E, Barajas-García L, García-Ortíz L, Reyes-Castillo Z. Leptin/Ghrelin Axis and Antibodies Reactive to Both Hormones in Relation to Metabolic Syndrome Components in Mexican Children. Metab Syndr Relat Disord 2024. [PMID: 39133224 DOI: 10.1089/met.2024.0109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024] Open
Abstract
Background: Metabolic syndrome (MetS) in children is a rising health issue that is strongly associated with cardiovascular diseases and type 2 diabetes mellitus development. Low-affinity antibodies reactive to leptin and ghrelin are suggested to regulate hormone stability and function; nevertheless, the role of the leptin/ghrelin axis and antibodies reactive to both hormones in relation to MetS or its components in the pediatric population remains unknown. Methods: Fifty-eight children (7-12 years) were included and categorized according to the presence of one or more criteria for the diagnosis of MetS or according to body mass index. Body composition, biochemical variables, and metabolic risk indexes were determined. Antibodies reactive to leptin and ghrelin were quantified by an in-house enzyme-linked immunosorbent assay test. Ratios of leptin/ghrelin hormones and anti-leptin/anti-ghrelin immune complexes were obtained. Results: The biochemical variables glucose (P = 0.0009), insulin (P = 0.0001), leptin (P = 0.0036), HOMA-IR (homeostatic model assessment for insulin resistance) (P < 0.0001), and plasma atherogenic index (P < 0.0001) were significantly higher in children with two or three components of MetS (MetS 2-3) in comparison to children with none or one component (MetS 0-1). Ratios of leptin/ghrelin (P = 0.0307) and anti-leptin/anti-ghrelin immune complexes (P = 0.0338) were higher in MetS 2-3 group versus MetS 0-1 group. In MetS 2-3 group, both insulin (r = 0.4361, P = 0.0293) and HOMA-IR (r = 0.4761, P = 0.0161) were positively correlated with the leptin/ghrelin hormone ratio. Conclusions: The higher leptin/ghrelin hormone ratio scores observed in MetS 2-3 group, along with their correlation with insulin levels and HOMA-IR, highlight the role of leptin and ghrelin on insulin sensitivity and metabolic regulation. An increased ratio of anti-leptin/anti-ghrelin immune complexes suggests affinity changes in these antibodies that may lead to alterations in hormone function.
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Affiliation(s)
- Rafael Vázquez-Solórzano
- Laboratorio de Biomedicina y Biotecnología para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Mayra Alejandra Enciso-Ramírez
- Laboratorio de Biomedicina y Biotecnología para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Berenice Sánchez-Caballero
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Isela Parra-Rojas
- Laboratorio de Investigación en Obesidad y Diabetes, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, México
| | - Elia Valdés-Miramontes
- Laboratorio de Biomedicina y Biotecnología para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Lourdes Barajas-García
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Lidia García-Ortíz
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
| | - Zyanya Reyes-Castillo
- Laboratorio de Biomedicina y Biotecnología para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
- Instituto de Investigaciones en Comportamiento Alimentario y Nutrición, Centro Universitario del Sur, Universidad de Guadalajara, Zapotlán el Grande, México
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Kasim RH, Chillon TS, Eleftheriadou AM, Rijntjes E, Minich WB, Zechmann S, Schomburg L. Detection of natural autoimmunity to ghrelin in diabetes mellitus. FRONTIERS IN MEDICAL TECHNOLOGY 2024; 6:1407409. [PMID: 39070294 PMCID: PMC11272539 DOI: 10.3389/fmedt.2024.1407409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Accepted: 06/28/2024] [Indexed: 07/30/2024] Open
Abstract
Objective Ghrelin is an orexigenic peptide that becomes post-translationally modified. Natural autoantibodies to ghrelin (ghrelin-aAb) have been described in healthy subjects, in eating disorders and rheumatic diseases, with potential clinical relevance. Despite these important reports, the data base on the prevalence and physiological role is small and technical approaches for assessing ghrelin-aAb are few, encouraging respective research for improving knowledge on the potential endocrine significance. Methods A novel immunoprecipitation assay was generated based on a fusion protein of human ghrelin with a reporter gene. Assay quality was verified with commercial antibodies. Assay characteristics and matrix effects were determined, including stability of natural ghrelin-aAb to freezing, signal linearity in dilution experiments, and comparison of different matrices. Three groups of serum samples were analyzed for ghrelin-aAb, comprising commercial sera from healthy subjects and patients with type 1 or type 2 diabetes mellitus. Results The newly generated ghrelin-aAb assay proved sensitive, robust and reliable over a broad concentration range. Results from serum and plasma differed slightly. The signals from serum remained stable towards freezing and thawing, and in dilution experiments. Applying a mathematical criterion for outliers (P75 + 1.5-times IQR), an average prevalence of 11%-12% of positive samples was identified in the different human cohorts, with no significant sex-or disease-related difference. General significance A novel diagnostic autoantibody assay detected ghrelin-aAb with a similar prevalence in diabetic patients and controls, suggesting that autoimmunity to ghrelin plays little role in diabetes mellitus, but may be of relevance in other diseases where ghrelin signaling is essential.
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Affiliation(s)
- Rega H. Kasim
- Institute for Experimental Endocrinology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Division of Diabetes and Endocrinology, GZO Zurich Regional Health Center, Wetzikon, Switzerland
| | - Thilo Samson Chillon
- Institute for Experimental Endocrinology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | | | - Eddy Rijntjes
- Institute for Experimental Endocrinology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Waldemar B. Minich
- Institute for Experimental Endocrinology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Stefan Zechmann
- Division of Diabetes and Endocrinology, GZO Zurich Regional Health Center, Wetzikon, Switzerland
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité—Universitätsmedizin Berlin, Berlin, Germany
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Grammatikopoulou MG, Syrmou V, Lioliopoulou ML, Gkiouras K, Simopoulou T, Katsiari CG, Vassilakou T, Bogdanos DP. Anorexia Nervosa in Juvenile Systemic Lupus Erythematosus (SLE): A Causality Dilemma. CHILDREN (BASEL, SWITZERLAND) 2023; 10:697. [PMID: 37189946 PMCID: PMC10137086 DOI: 10.3390/children10040697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/26/2023] [Accepted: 04/07/2023] [Indexed: 05/17/2023]
Abstract
Juvenile-onset systemic lupus erythematosus (jSLE) is an autoimmune disorder with multifaceted clinical findings in different organ systems. Neuropsychiatric manifestations affect more than half of SLE patients, and there is increasing evidence that anorexia nervosa (AN), a feeding and eating disorder (FED) characterized by significantly reduced energy intake, is among them. Herein, a review of the literature on the potential association between jSLE and AN was performed. Reported clinical cases were identified, and putative pathophysiological mechanisms were sought that could potentially explain the observed relationship between these two pathological entities. Four reports of isolated cases and a case series including seven patients were identified. In this limited patient pool, the diagnosis of AN preceded that of SLE in the majority of cases, whereas in all cases both entities were diagnosed within a time span of two years. Many explanations for the observed relationships have been proposed. AN has been associated with the stress of chronic disease diagnosis; on the other hand, the chronic inflammation associated with AN may contribute to the development/appearance of SLE. Adverse childhood experiences, concentrations of leptin, shared autoantibodies, and genetic traits appear to be important factors in this well-established interplay. In essence, it seems important to increase clinician awareness of the concomitant development of AN and SLE and invite further research on the subject.
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Affiliation(s)
- Maria G. Grammatikopoulou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Vasiliki Syrmou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Maria-Lydia Lioliopoulou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Konstantinos Gkiouras
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Theodora Simopoulou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Christina G. Katsiari
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
| | - Tonia Vassilakou
- Department of Public Health Policy, School of Public Health, University of West Attica, 196 Alexandras Avenue, GR-11521 Athens, Greece
| | - Dimitrios P. Bogdanos
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41110 Larissa, Greece
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Sanchez-Murguia T, Torres-Castillo N, Magaña-de la Vega L, Rodríguez-Reyes SC, Campos-Pérez W, Martínez-López E. Role of Leu72Met of GHRL and Gln223Arg of LEPR Variants on Food Intake, Subjective Appetite, and Hunger-Satiety Hormones. Nutrients 2022; 14:nu14102100. [PMID: 35631243 PMCID: PMC9144565 DOI: 10.3390/nu14102100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022] Open
Abstract
Appetite regulation has been recognized as a promising target for the prevention of obesity, which has become a worldwide health issue. Polymorphisms in the genes of hormones or receptors including Leu72Met for ghrelin and Gln223Arg for the leptin receptor could play a role in dietary intake, hunger, and satiety process. The aim of this study was to analyze subjective appetite assessments, dietary intake, and appetite hormones in relationship to these polymorphisms. Subjects (n = 132) with normal BMIs were enrolled. Dietary intake was analyzed with 3-day diet records. Subjective appetite was measured by visual analogue scales. Biochemical parameters were measured after 12 h of fasting and 120′ following ingestion of a test meal. Ghrelin and leptin levels were measured by ELISA assay (enzyme-linked immunosorbent assay) and insulin by chemiluminescence assay. The polymorphisms were determined by allelic discrimination using TaqMan® probes. Fasting ghrelin levels differed significantly between men and women. The consumption of fruit and bread/starch with added sugar servings, as indicated by dietary records, and measured ghrelin levels were higher in carriers of Leu72Met/Met72Met compared to Leu72Leu carriers; total sugar intake was higher in Gln223Gln carriers than in Gln223Arg/Arg223Arg carriers. In conclusion, the Leu72Met and Gln223Arg polymorphism in ghrelin and LEPR may contribute to differential responses to a standardized meal as evidenced by higher postprandial levels of ghrelin and may also contribute to a higher dietary sugar intake.
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Affiliation(s)
- Tania Sanchez-Murguia
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
| | - Nathaly Torres-Castillo
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
| | - Lisset Magaña-de la Vega
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
| | - Saraí Citlalic Rodríguez-Reyes
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
| | - Wendy Campos-Pérez
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
| | - Erika Martínez-López
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico; (T.S.-M.); (N.T.-C.); (L.M.-d.l.V.); (S.C.R.-R.); (W.C.-P.)
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44100, JA, Mexico
- Correspondence: ; Tel.: +52-(33)10585200 (ext. 33644)
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