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Liukkonen A, He Q, Gürsoy UK, Pussinen PJ, Gröndahl-Yli-Hannuksela K, Liukkonen J, Sorsa T, Suominen AL, Huumonen S, Könönen E. Mannose-binding lectin gene polymorphism in relation to periodontal infection. J Periodontal Res 2016; 52:540-545. [PMID: 27624657 DOI: 10.1111/jre.12420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE Mannose-binding lectin (MBL) plays an important role in innate immunity. MBL deficiency is usually caused by mutations in exon 1 of the MBL structural gene (MBL2). Our aim was to investigate MBL2 polymorphisms and their relation to salivary levels of periodontal inflammatory/tissue destruction markers and two major periodontitis-associated bacteria. MATERIAL AND METHODS Salivary samples from 222 subjects were available for genotyping by pyrosequencing. The subjects between 40 and 60 years of age and having a minimum of 20 teeth were divided into three periodontal groups: 80 had generalized periodontitis, 65 had localized periodontitis and 77 were periodontitis-free. A comparison between their MBL2 genotypes and salivary detection rates and levels of Aggregatibacter actinomycetemcomitans and Porphyromonas gingivalis as well as interleukin -1β, matrix metalloproteinase -8, and tissue inhibitor of matrix metalloproteinase (TIMP)-1 was performed. RESULTS The frequencies of the MBL2 wild-type (A/A), heterozygote variants (A/O) and homozygote variants (O/O) were 69.4%, 26.6% and 4%, respectively. In A. actinomycetemcomitans-positive subjects having homozygote or heterozygote MBL2 variants, the salivary concentrations of IL-1β (p = 0.010) were elevated and those of TIMP-1 (p = 0.001) were decreased. In addition their matrix metalloproteinase -8/TIMP-1 ratio was higher (p < 0.001) and they had more pocket teeth (p = 0.012) than subjects negative for A. actinomycetemcomitans. CONCLUSION Our findings indicate that the carriage of A. actinomycetemcomitans may facilitate extended periodontal inflammation and destruction in subjects with a variant form of human MBL2.
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Affiliation(s)
- A Liukkonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Q He
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - U K Gürsoy
- Institute of Dentistry, University of Turku, Turku, Finland
| | - P J Pussinen
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
| | | | - J Liukkonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - T Sorsa
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.,Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - A L Suominen
- Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.,Unit of Living Conditions, Health and Wellbeing, Department of Environmental Health in Environmental Epidemiology Unit, National Institute for Health and Welfare (THL), Kuopio, Finland.,Department of Oral and Maxillofacial Surgery, Kuopio University Hospital, Kuopio, Finland
| | - S Huumonen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - E Könönen
- Institute of Dentistry, University of Turku, Turku, Finland.,Welfare Division, Oral Health Care, City of Turku, Turku, Finland
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Shi J, Zhu X, Xie M, Wang J, He Y, Xu Y, Liu X. MBL2 polymorphisms and the risk of asthma: A meta-analysis. Ann Allergy Asthma Immunol 2016; 117:417-422.e1. [PMID: 27590640 DOI: 10.1016/j.anai.2016.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/20/2016] [Accepted: 08/01/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND The association between MBL2 gene polymorphisms and the risk of asthma has been evaluated in multiple studies; however, the results are inconsistent. OBJECTIVE To perform a meta-analysis to explore whether MBL2 gene polymorphisms were associated with the risk of asthma. METHODS We searched PubMed, Web of Science, and Cochrane Library to find relevant articles published up to March 2016. Nine studies, including 2066 cases and 2183 controls, were included in the meta-analysis. The strength of association was evaluated by odds ratio (OR) with 95% confidence interval (CI). RESULTS The results reveal that MBL2 gene polymorphisms (codon 54 A/B, -550 H/L or -221 X/Y) were not associated with the risk of asthma (codon 54 A/B: BB+AB vs AA: OR, 1.02; 95% CI, 0.85-1.23; -550 H/L: LL+HL vs HH: OR, 0.81; 95% CI, 0.63-1.03; -221 X/Y: XX+YX vs YY: OR, 0.85; 95% CI, 0.69-1.04). Subgroup analysis by ethnicity implied that the MBL2 codon 54 A/B polymorphism was not significantly associated with the risk of asthma in Asians (BB+AB vs AA: OR, 0.95; 95% CI, 0.70-1.29) or whites (BB+AB vs AA: OR, 1.07; 95% CI, 0.84-1.35). CONCLUSION The results indicated that MBL2 gene polymorphisms (codon 54 A/B, -550 H/L or -221 X/Y) may be not associated with the risk of asthma.
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Affiliation(s)
- Jing Shi
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianying Zhu
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Xie
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianmiao Wang
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanzhou He
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongjian Xu
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiansheng Liu
- Department of Respiration and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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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] [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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