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Ligrone L, Lembo S, Cillo F, Spennato S, Fabbrocini G, Raimondo A. A severe relapse of pemphigus vulgaris after SARS-CoV-2 vaccination. J Eur Acad Dermatol Venereol 2023; 37:e1369-e1371. [PMID: 37561928 DOI: 10.1111/jdv.19414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Affiliation(s)
- L Ligrone
- Dermatologic Unit, Hospital 'San Giovanni di Dio e Ruggi d'Aragona', Salerno, Italy
| | - S Lembo
- Department of Medicine, Surgery and Dentistry 'Scuola Medica Salernitana' University of Salerno, Salerno, Italy
| | - F Cillo
- Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - S Spennato
- Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - G Fabbrocini
- Dermatology Unit, Department of Clinical Medicine and Surgery, University Federico II, Naples, Italy
| | - A Raimondo
- Department of Medicine, Surgery and Dentistry 'Scuola Medica Salernitana' University of Salerno, Salerno, Italy
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2
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Raimondo A, Lembo S. 121 Oxidative stress in atopic dermatitis: urinary biopyrrins as possible new biomarker. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3
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Raimondo A, Guglielmi G, Marino C, Ligrone L, Lembo S. An acute spondyloarthritis during successful treatment with dupilumab for severe atopic dermatitis. Clin Exp Dermatol 2021; 47:592-593. [PMID: 34655234 DOI: 10.1111/ced.14984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 11/29/2022]
Abstract
we report the case of a 44-year-old male affected by life-long, severe and recalcitrant form of atopic dermatitis (AD), with various atopic comorbidities. Multiple systemic therapies had been performed before our first observation, all interrupted for ineffectiveness. On May 2018, the patient recorded an Eczema Area and Severity Index (EASI) of 52, Peak Pruritus Numerical Rating Scale (NRS) of 8, and Dermatology Life Quality Index (DLQI) of 20. Blood exams showed a significant increased of total immunoglobulin E (IgE) plasma levels (5321 kUa/L; 0,00-100,00 kUa/L reference range).
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Affiliation(s)
- A Raimondo
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana", University of Salerno, Italy
| | - G Guglielmi
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana", University of Salerno, Italy
| | - C Marino
- S. Giovanni di Dio e Ruggi D', Aragona University Hospital, P.O. "Santa Maria Incoronata Dell'Olmo", Cava dè Tirreni, Salerno, Italy
| | - L Ligrone
- S. Giovanni di Dio e Ruggi D', Aragona University Hospital, P.O. "Santa Maria Incoronata Dell'Olmo", Cava dè Tirreni, Salerno, Italy
| | - S Lembo
- Department of Medicine, Surgery and Dentistry, Scuola Medica Salernitana", University of Salerno, Italy
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4
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Raimondo A, Ligrone L, Mottola L, Lembo S. 058 Oxidative stress in atopic dermatitis and cardiovascular disease: urinary biopyrrins as possible biomarker. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Balato A, Ayala F, Bruze M, Crepy MN, Gonçalo M, Johansen J, John SM, Pigatto P, Raimondo A, Rustemeyer T, Schuttelaar MLA, Svedman C, Aerts O, Uter W, Wilkinson M, Gimenez-Arnau A. European Task Force on Contact Dermatitis statement on coronavirus disease-19 (COVID-19) outbreak and the risk of adverse cutaneous reactions. J Eur Acad Dermatol Venereol 2020; 34:e353-e354. [PMID: 32356382 DOI: 10.1111/jdv.16557] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - F Ayala
- Professor Emeritus of Dermatology, University of Naples Federico II, Naples, Italy
| | - M Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - M-N Crepy
- Department of Occupational and Environmental Diseases, Hotel-Dieu Hospital, Paris, France.,Department of Dermatology, Cochin Hospital, Paris Descartes University, Paris, France
| | - M Gonçalo
- Clinic of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - J Johansen
- Department of Dermatology and Allergy, National Allergy Research Centre, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - S M John
- Department of Dermatology, Environmental Medicine, Health Theory, University of Osnabrueck, Osnabrueck, Germany.,Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrueck, Osnabrueck, Germany.,Rehabilitation (iDerm) at the University of Osnabrueck, Osnabrueck, Germany
| | - P Pigatto
- Department of Biomedical, Surgical and Dental Sciences, Clinical Dermatology, IRCCS Istituto Ortopedico Galeazzi, University of Milan, Milan, Italy
| | - A Raimondo
- Department of Medicine, Surgery and Dentistry, 'Scuola Medica Salernitana', University of Salerno, Salerno, Italy
| | - T Rustemeyer
- Department of Dermatology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - M-L A Schuttelaar
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - C Svedman
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - O Aerts
- University Hospital Antwerp (UZA) and University of Antwerp, Antwerp, Belgium
| | - W Uter
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander University Erlangen/Nürnberg, Erlangen, Germany
| | - M Wilkinson
- Dermatology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - A Gimenez-Arnau
- Department of Dermatology, Hospital del Mar. IMIM, Universitat Autònoma Barcelona, Barcelona, Spain
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Balato A, Raimondo A, Arenberger P, Bruze M, Czarnecka-Operacz M, Johanssen JD, Gonçalo M, Ranki A, Uter W, Wilkinson M, Ayala F, John SM, Giménez-Arnau A, Gollnick H. The role of the dermatologist in the immune-mediated/allergic diseases - position statement of the EADV task force on contact dermatitis, EADV task force on occupational skin diseases, UEMS-EBDV subcommission allergology and European Dermatology Forum. J Eur Acad Dermatol Venereol 2019; 33:1459-1464. [PMID: 31062452 DOI: 10.1111/jdv.15610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/28/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND The members of the Task Force on Contact Dermatitis and the Task Force on Occupational Dermatoses of the European Academy of Dermatology and Venereology (EADV), of the European Dermatology Forum (EDF), and the members of the UEMS Section of Dermatology-Venereology (UEMS-EBDV) we want to vindicate the fundamental role that the specialist in Dermatology has in the diagnosis and management of Immuno-mediated /allergic Diseases. OBJECTIVE In disagreement with the blueprint paper of the UEMS section of Allergology (2013), in which dermatologists are excluded from one of their core activities it was decided to write this consensus paper. DISCUSSION The skin occupies a crucial place in the broad spectrum of allergic diseases; there is no other organ with such a multitude of different clinical conditions mediated by so many pathogenetic immune mechanisms. Subsequently, dermatologists play a fundamental role in the management of immune-mediated diseases including among others contact dermatitis, atopic dermatitis, urticaria and angioedema or cutaneous adverse drug, food and arthropod reactions. The essential role of dermatology in the diagnostic, therapeutic and preventive management of immune mediated /allergic diseases which is crucial for patient management is justified from both the academic and professional point of view. CONCLUSION Based on the best care of the patient with cutaneous immune allergic disease a multidisciplinary approach is desirable and the dermatologist has a pivotal role in patient management. Be so good and no one will not ignore you, dermatologist. Ideally Dermatology should be governed according the following Henry Ford statement: "Arriving together is the beginning; keeping together is progress; working together is success."
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Affiliation(s)
- A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - A Raimondo
- Department of Medicine, Surgery and Dentistry, 'Scuola Medica Salernitana', University of Salerno, Salerno, Italy
| | - P Arenberger
- Department of Dermatology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - M Bruze
- Department of Occupational and Environmental Dermatology, Skåne University Hospital, Lund University, Malmö, Sweden
| | - M Czarnecka-Operacz
- Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | - J D Johanssen
- Department of Dermatology and Allergy, National Allergy Research Centre, Herlev-Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - M Gonçalo
- Department of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - A Ranki
- Department of Dermatology, Allergology and Venereology, University of Helsinki and Skin and Allergy Hospital, Helsinki University Central Hospital, Helsinki, Finland
| | - W Uter
- Department of Medical Informatics, Biometry and Epidemiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - M Wilkinson
- Dermatology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - F Ayala
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - S M John
- Department of Dermatology, Environmental Medicine, University of Osnabrueck, Osnabrueck, Germany
| | - A Giménez-Arnau
- Department of Dermatology, Hospital del Mar. Universitat Autònoma de Barcelona, Barcelona, Spain
| | - H Gollnick
- Department of Dermatology and Venereology, Otto-von-Guericke Universität, Magdeburg, Germany
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Marasca C, Scala E, Di Caprio R, Raimondo A, Cacciapuoti S, Balato A, Fabbrocini G. Notch dysregulation and hidradenitis suppurativa, psoriasis, atopic dermatitis and lichen planus: let's talk about Numb. Br J Dermatol 2019; 180:950-951. [PMID: 30515753 DOI: 10.1111/bjd.17509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- C Marasca
- Department of Clinical Medicine and Surgery, Section of Dermatology
| | - E Scala
- Department of Clinical Medicine and Surgery, Section of Dermatology
| | - R Di Caprio
- Department of Clinical Medicine and Surgery, Section of Dermatology
| | - A Raimondo
- Department of Clinical Medicine and Surgery, Section of Dermatology
| | - S Cacciapuoti
- Department of Clinical Medicine and Surgery, Section of Dermatology
| | - A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, Naples, Italy
| | - G Fabbrocini
- Department of Clinical Medicine and Surgery, Section of Dermatology
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8
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Thomsen SK, Raimondo A, Hastoy B, Sengupta S, Dai XQ, Bautista A, Censin J, Payne AJ, Umapathysivam MM, Spigelman AF, Barrett A, Groves CJ, Beer NL, Manning Fox JE, McCarthy MI, Clark A, Mahajan A, Rorsman P, MacDonald PE, Gloyn AL. Type 2 diabetes risk alleles in PAM impact insulin release from human pancreatic β-cells. Nat Genet 2018; 50:1122-1131. [PMID: 30054598 PMCID: PMC6237273 DOI: 10.1038/s41588-018-0173-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 06/06/2018] [Indexed: 12/30/2022]
Abstract
The molecular mechanisms underpinning susceptibility loci for type 2 diabetes (T2D) remain poorly understood. Coding variants in peptidylglycine α-amidating monooxygenase (PAM) are associated with both T2D risk and insulinogenic index. Here, we demonstrate that the T2D risk alleles impact negatively on overall PAM activity via defects in expression and catalytic function. PAM deficiency results in reduced insulin content and altered dynamics of insulin secretion in a human β-cell model and primary islets from cadaveric donors. Thus, our results demonstrate a role for PAM in β-cell function, and establish molecular mechanisms for T2D risk alleles at this locus.
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Affiliation(s)
- Soren K. Thomsen
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Anne Raimondo
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Benoit Hastoy
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Shahana Sengupta
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK,MRC Harwell Institute, Harwell Campus, Oxfordshire, UK
| | - Xiao-Qing Dai
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Austin Bautista
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Jenny Censin
- Big Data Institute at the Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK,Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Anthony J. Payne
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | | | - Aliya F Spigelman
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Amy Barrett
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Christopher J. Groves
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Nicola L. Beer
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Jocelyn E. Manning Fox
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Mark I. McCarthy
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK,Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK,Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, UK
| | - Anne Clark
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK
| | - Anubha Mahajan
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Patrik Rorsman
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK,Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, UK
| | - Patrick E. MacDonald
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Anna L. Gloyn
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford, UK,Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK,Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, UK,Corresponding author: Anna L. Gloyn, Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Churchill Hospital, Headington OX3 7LE, +441865857219,
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9
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Affiliation(s)
- A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via S. Pansini, 5, 80131, Naples, Italy
| | - A Raimondo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via S. Pansini, 5, 80131, Naples, Italy
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10
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Balato A, Caiazzo G, Di Caprio R, Lembo S, Raimondo A, Monfrecola G, Fabbrocini G. Response to: 'Interleukin-36 in hidradenitis suppurativa: evidence for a distinctive proinflammatory role and a key factor in the development of an inflammatory loop'. Br J Dermatol 2017; 178:807. [PMID: 29150833 DOI: 10.1111/bjd.16133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A Balato
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Italy
| | - G Caiazzo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Italy
| | - R Di Caprio
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Italy
| | - S Lembo
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Italy
| | - A Raimondo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Italy
| | - G Monfrecola
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Italy
| | - G Fabbrocini
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Italy
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11
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Lembo C, Raimondo A, Balato N, Ayala F, Balato A. 506 A potential prognostic test for bone erosion development in patients with cutaneous predictive sites for psoriatic arthritis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Balato A, Caiazzo G, Ayala F, Balato N, Di Caprio R, Monfrecola G, Patruno C, Raimondo A, Lembo S. 379 IL-26: A new actor in allergic contact dermatitis. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Maresca B, Lembo S, Ayala F, Balato N, Di Caprio R, Mattii M, Raimondo A, Schiattarella M, Abrescia P, Spagnuolo MS, Cigliano L, Balato A. Understanding the role of haptoglobin in psoriasis: effects of ultraviolet B. Clin Exp Dermatol 2015; 41:74-80. [DOI: 10.1111/ced.12667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2014] [Indexed: 01/14/2023]
Affiliation(s)
- B. Maresca
- Department of Biology; University of Naples Federico II; Naples Italy
| | - S. Lembo
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - F. Ayala
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - N. Balato
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - R. Di Caprio
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - M. Mattii
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - A. Raimondo
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - M. Schiattarella
- Department of Dermatology; University of Naples Federico II; Naples Italy
| | - P. Abrescia
- Department of Biology; University of Naples Federico II; Naples Italy
| | - M. S. Spagnuolo
- Institute of Animal Production Systems in Mediterranean Environments; National Research Council; Naples Italy
| | - L. Cigliano
- Department of Biology; University of Naples Federico II; Naples Italy
| | - A. Balato
- Department of Dermatology; University of Naples Federico II; Naples Italy
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Abstract
PURPOSE OF REVIEW Glucokinase regulator (GCKR) encodes glucokinase regulatory protein (GKRP), a hepatocyte-specific inhibitor of the glucose-metabolizing enzyme glucokinase (GCK). Genome-wide association studies have identified a common coding variant within GCKR associated with multiple metabolic traits. This review focuses on recent insights into the critical role of GKRP in hepatic glucose metabolism that have stemmed from the study of human genetics. This knowledge has improved our understanding of glucose and lipid physiology and informed the development of targeted molecular therapeutics for diabetes. RECENT FINDINGS Rare GCKR variants have effects on GKRP expression, localization, and activity. These variants are collectively associated with hypertriglyceridaemia but are not causal. Crystal structures of GKRP and the GCK-GKRP complex have been solved, providing greater insight into the molecular interactions between these proteins. Finally, small molecules have been identified that directly bind GKRP and reduce blood glucose levels in rodent models of diabetes. SUMMARY GCKR variants across the allelic spectrum have effects on glucose and lipid homeostasis. Functional analysis has highlighted numerous molecular mechanisms for GKRP dysfunction. Hepatocyte-specific GCK activation via small molecule GKRP inhibition may be a new avenue for type 2 diabetes treatment, particularly considering evidence indicating GKRP loss-of-function alone does not cause hypertriglyceridaemia.
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Affiliation(s)
- Anne Raimondo
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Matthew G. Rees
- Center for the Science of Therapeutics, Broad Institute, Cambridge, Massachusetts, USA
- Howard Hughes Medical Institute, Broad Institute, Cambridge, Massachusetts, USA
| | - Anna L. Gloyn
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, ORH Trust, OCDEM, Churchill Hospital, Oxford, UK
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15
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Montagne L, Raimondo A, Delobel B, Duban-Bedu B, Noblet FS, Dechaume A, Bersten DC, Meyre D, Whitelaw ML, Froguel P, Bonnefond A. Identification of two novel loss-of-function SIM1 mutations in two overweight children with developmental delay. Obesity (Silver Spring) 2014; 22:2621-4. [PMID: 25234154 DOI: 10.1002/oby.20886] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 07/26/2014] [Accepted: 08/14/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Several deletions of chromosome 6q, including SIM1, were reported in obese patients with developmental delay. Furthermore, rare loss-of-function SIM1 mutations were shown to contribute to severe obesity, yet the role of these mutations in developmental delay remained unclear. Here, SIM1 in children with neurodevelopmental abnormalities was screened and the functional effect of the identified mutations was investigated. METHODS SIM1 was sequenced in 283 children presenting with developmental delay and at least overweight. The effect of the identified mutations on SIM1 transcriptional activity in stable human cell lines was assessed using luciferase gene reporter assays. RESULTS Two novel mutations (c.886A>G/p.R296G and c.925A>G/p.S309G) in two boys with variable degrees of cognitive deficits and weight issues were identified. The child mutated for p.R296G presented with a generally more severe phenotype than the p.S309G carrier (obesity, compulsive eating, neonatal hypotonia versus overweight only), while both mutations had strong loss-of-function effects on SIM1 transcriptional activity. CONCLUSIONS Severe loss-of-function SIM1 mutations can be associated with a spectrum of developmental delay phenotypes and obesity. Our data suggest that SIM1 sequencing should be performed more systematically in patients with developmental delay, even in the absence of severe obesity. These results deserve further SIM1 screening studies.
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Affiliation(s)
- Louise Montagne
- European Genomic Institute for Diabetes, Lille, France. Correspondence: Philippe Froguel ; CNRS-UMR8199, Lille Pasteur Institute, Lille, France; Lille 2 University, Lille, France; Department of Pediatrics, Saint Antoine Pediatric Hospital, Saint Vincent de Paul Hospital, Catholic University of Lille, Lille, France
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16
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Raimondo A, Chakera AJ, Thomsen SK, Colclough K, Barrett A, De Franco E, Chatelas A, Demirbilek H, Akcay T, Alawneh H, Flanagan SE, Van De Bunt M, Hattersley AT, Gloyn AL, Ellard S. Phenotypic severity of homozygous GCK mutations causing neonatal or childhood-onset diabetes is primarily mediated through effects on protein stability. Hum Mol Genet 2014; 23:6432-40. [PMID: 25015100 PMCID: PMC4240195 DOI: 10.1093/hmg/ddu360] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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] [Indexed: 01/08/2023] Open
Abstract
Mutations in glucokinase (GCK) cause a spectrum of glycemic disorders. Heterozygous loss-of-function mutations cause mild fasting hyperglycemia irrespective of mutation severity due to compensation from the unaffected allele. Conversely, homozygous loss-of-function mutations cause permanent neonatal diabetes requiring lifelong insulin treatment. This study aimed to determine the relationship between in vitro mutation severity and clinical phenotype in a large international case series of patients with homozygous GCK mutations. Clinical characteristics for 30 patients with diabetes due to homozygous GCK mutations (19 unique mutations, including 16 missense) were compiled and assigned a clinical severity grade (CSG) based on birth weight and age at diagnosis. The majority (28 of 30) of subjects were diagnosed before 9 months, with the remaining two at 9 and 15 years. These are the first two cases of a homozygous GCK mutation diagnosed outside infancy. Recombinant mutant GCK proteins were analyzed for kinetic and thermostability characteristics and assigned a relative activity index (RAI) or relative stability index (RSI) value. Six of 16 missense mutations exhibited severe kinetic defects (RAI ≤ 0.01). There was no correlation between CSG and RAI (r(2) = 0.05, P = 0.39), indicating that kinetics alone did not explain the phenotype. Eighty percent of the remaining mutations showed reduced thermostability, the exceptions being the two later-onset mutations which exhibited increased thermostability. Comparison of CSG with RSI detected a highly significant correlation (r(2) = 0.74, P = 0.002). We report the largest case series of homozygous GCK mutations to date and demonstrate that they can cause childhood-onset diabetes, with protein instability being the major determinant of mutation severity.
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Affiliation(s)
- Anne Raimondo
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Ali J Chakera
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX2 5DW, UK, Macleod Diabetes and Endocrine Centre and
| | - Soren K Thomsen
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Kevin Colclough
- Molecular Genetics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, UK
| | - Amy Barrett
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Elisa De Franco
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX2 5DW, UK
| | - Alisson Chatelas
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Huseyin Demirbilek
- Department of Paediatric Endocrinology, Diyarbakir Children State Hospital, Diyarbakir 21100, Turkey
| | - Teoman Akcay
- Division of Pediatric Endocrinology, Dr Sadi Konuk Education and Research Hospital, Bakirkoy, Istanbul 34147, Turkey
| | - Hussein Alawneh
- Pediatric Endocrine Division, Queen Rania Al Abdullah Hospital for Children, King Hussein Medical Center, Royal Medical Services, Amman 11814, Jordan and
| | | | - Sarah E Flanagan
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX2 5DW, UK
| | - Martijn Van De Bunt
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Andrew T Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX2 5DW, UK, Macleod Diabetes and Endocrine Centre and
| | - Anna L Gloyn
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK, Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford OX3 7LE, UK
| | - Sian Ellard
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX2 5DW, UK, Molecular Genetics Laboratory, Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, UK
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17
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Kavvoura FK, Raimondo A, Thanabalasingham G, Barrett A, Webster AL, Shears D, Mann NP, Ellard S, Gloyn AL, Owen KR. Reclassification of diabetes etiology in a family with multiple diabetes phenotypes. J Clin Endocrinol Metab 2014; 99:E1067-71. [PMID: 24606082 PMCID: PMC4186945 DOI: 10.1210/jc.2013-3641] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Maturity-onset diabetes of the young (MODY) is uncommon; however, accurate diagnosis facilitates personalized management and informs prognosis in probands and relatives. OBJECTIVE The objective of the study was to highlight that the appropriate use of genetic and nongenetic investigations leads to the correct classification of diabetes etiology. CASE DISCUSSION A 30-year-old European female was diagnosed with insulin-treated gestational diabetes. She discontinued insulin after delivery; however, her fasting hyperglycemia persisted. β-Cell antibodies were negative and C-peptide was 0.79 nmol/L. Glucokinase (GCK)-MODY was suspected and confirmed by the identification of a GCK mutation (p.T206M). METHODS Systematic clinical and biochemical characterization and GCK mutational analysis were implemented to determine the diabetes etiology in five relatives. Functional characterization of GCK mutations was performed. RESULTS Identification of the p.T206M mutation in the proband's sister confirmed a diagnosis of GCK-MODY. Her daughter was diagnosed at 16 weeks with permanent neonatal diabetes (PNDM). Mutation analysis identified two GCK mutations that were inherited in trans-p. [(R43P);(T206M)], confirming a diagnosis of GCK-PNDM. Both mutations were shown to be kinetically inactivating. The proband's mother, other sister, and daughter all had a clinical diagnosis of type 1 diabetes, confirmed by undetectable C-peptide levels and β-cell antibody positivity. GCK mutations were not detected. CONCLUSIONS Two previously misclassified family members were shown to have GCK-MODY, whereas another was shown to have GCK-PNDM. A diagnosis of type 1 diabetes was confirmed in three relatives. This family exemplifies the importance of careful phenotyping and systematic evaluation of relatives after discovering monogenic diabetes in an individual.
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Affiliation(s)
- Fotini K Kavvoura
- Oxford Centre for Diabetes, Endocrinology, and Metabolism (F.K.K., A.R., G.T., A.B., A.L.W., A.L.G., K.R.O.), University of Oxford, Oxford OX3 7LE, United Kingdom; Oxford National Institute for Health Research Biomedical Centre (F.K.K., G.T., A.L.G., K.R.O.), Churchill Hospital, Oxford OX3 7LJ, United Kingdom; Department of Clinical Genetics (D.S.), Oxford University Hospitals National Health Service Trust, Oxford OX3 9DU, United Kingdom; Department of Pediatrics (N.P.M.), Royal Berkshire National Health Service Foundation Trust, Reading RG1 5AN, United Kingdom; and Institute of Biomedical and Clinical Science (S.E.), University of Exeter Medical School, Exeter EX4 4PY, United Kingdom
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18
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Rees MG, Raimondo A, Wang J, Ban MR, Davis MI, Barrett A, Ranft J, Jagdhuhn D, Waterstradt R, Baltrusch S, Simeonov A, Collins FS, Hegele RA, Gloyn AL. Inheritance of rare functional GCKR variants and their contribution to triglyceride levels in families. Hum Mol Genet 2014; 23:5570-8. [PMID: 24879641 PMCID: PMC4168830 DOI: 10.1093/hmg/ddu269] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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] [Indexed: 01/08/2023] Open
Abstract
Significant resources have been invested in sequencing studies to investigate the role of rare variants in complex disease etiology. However, the diagnostic interpretation of individual rare variants remains a major challenge, and may require accurate variant functional classification and the collection of large numbers of variant carriers. Utilizing sequence data from 458 individuals with hypertriglyceridemia and 333 controls with normal plasma triglyceride levels, we investigated these issues using GCKR, encoding glucokinase regulatory protein. Eighteen rare non-synonymous GCKR variants identified in these 791 individuals were comprehensively characterized by a range of biochemical and cell biological assays, including a novel high-throughput-screening-based approach capable of measuring all variant proteins simultaneously. Functionally deleterious variants were collectively associated with hypertriglyceridemia, but a range of in silico prediction algorithms showed little consistency between algorithms and poor agreement with functional data. We extended our study by obtaining sequence data on family members; however, functional variants did not co-segregate with triglyceride levels. Therefore, despite evidence for their collective functional and clinical relevance, our results emphasize the low predictive value of rare GCKR variants in individuals and the complex heritability of lipid traits.
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Affiliation(s)
- Matthew G Rees
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - Anne Raimondo
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Jian Wang
- Departments of Medicine and Biochemistry, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, ON N6A 3K6, Canada
| | - Matthew R Ban
- Departments of Medicine and Biochemistry, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, ON N6A 3K6, Canada
| | - Mindy I Davis
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - Amy Barrett
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK
| | - Jessica Ranft
- Institute for Medical Biochemistry & Molecular Biology, University of Rostock, Rostock 18057, Germany and
| | - David Jagdhuhn
- Institute for Medical Biochemistry & Molecular Biology, University of Rostock, Rostock 18057, Germany and
| | - Rica Waterstradt
- Institute for Medical Biochemistry & Molecular Biology, University of Rostock, Rostock 18057, Germany and
| | - Simone Baltrusch
- Institute for Medical Biochemistry & Molecular Biology, University of Rostock, Rostock 18057, Germany and
| | - Anton Simeonov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20850, USA
| | - Francis S Collins
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Robert A Hegele
- Departments of Medicine and Biochemistry, Schulich School of Medicine and Dentistry, Robarts Research Institute, University of Western Ontario, London, ON N6A 3K6, Canada
| | - Anna L Gloyn
- Oxford Centre for Diabetes, Endocrinology & Metabolism, University of Oxford, Oxford OX3 7LE, UK, NIHR Oxford Biomedical Research Centre, ORH Trust, OCDEM, Churchill Hospital, Oxford OX3 7LE, UK
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19
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Rees MG, Davis MI, Shen M, Titus S, Raimondo A, Barrett A, Gloyn AL, Collins FS, Simeonov A. A panel of diverse assays to interrogate the interaction between glucokinase and glucokinase regulatory protein, two vital proteins in human disease. PLoS One 2014; 9:e89335. [PMID: 24586696 PMCID: PMC3929664 DOI: 10.1371/journal.pone.0089335] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 01/19/2014] [Indexed: 12/02/2022] Open
Abstract
Recent genetic and clinical evidence has implicated glucokinase regulatory protein (GKRP) in the pathogenesis of type 2 diabetes and related traits. The primary role of GKRP is to bind and inhibit hepatic glucokinase (GCK), a critically important protein in human health and disease that exerts a significant degree of control over glucose metabolism. As activation of GCK has been associated with improved glucose tolerance, perturbation of the GCK-GKRP interaction represents a potential therapeutic target for pharmacological modulation. Recent structural and kinetic advances are beginning to provide insight into the interaction of these two proteins. However, tools to comprehensively assess the GCK-GKRP interaction, particularly in the context of small molecules, would be a valuable resource. We therefore developed three robust and miniaturized assays for assessing the interaction between recombinant human GCK and GKRP: an HTRF assay, a diaphorase-coupled assay, and a luciferase-coupled assay. The assays are complementary, featuring distinct mechanisms of detection (luminescence, fluorescence, FRET). Two assays rely on GCK enzyme activity modulation by GKRP while the FRET-based assay measures the GCK-GKRP protein-protein interaction independent of GCK enzymatic substrates and activity. All three assays are scalable to low volumes in 1536-well plate format, with robust Z’ factors (>0.7). Finally, as GKRP sequesters GCK in the hepatocyte nucleus at low glucose concentrations, we explored cellular models of GCK localization and translocation. Previous findings from freshly isolated rat hepatocytes were confirmed in cryopreserved rat hepatocytes, and we further extended this study to cryopreserved human hepatocytes. Consistent with previous reports, there were several key differences between the rat and human systems, with our results suggesting that human hepatocytes can be used to interrogate GCK translocation in response to small molecules. The assay panel developed here should help direct future investigation of the GCK-GKRP interaction in these or other physiologically relevant human systems.
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Affiliation(s)
- Matthew G. Rees
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland, United States of America
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, United Kingdom
| | - Mindy I. Davis
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland, United States of America
| | - Min Shen
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland, United States of America
| | - Steve Titus
- GE Healthcare, Life Sciences, Piscataway, New Jersey, United States of America
| | - Anne Raimondo
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, United Kingdom
| | - Amy Barrett
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, United Kingdom
| | - Anna L. Gloyn
- Oxford Centre for Diabetes Endocrinology & Metabolism, University of Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, ORH Trust, OCDEM, Churchill Hospital, Oxford, United Kingdom
| | - Francis S. Collins
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Anton Simeonov
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland, United States of America
- * E-mail:
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20
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Ramachandrappa S, Raimondo A, Cali AM, Keogh JM, Henning E, Saeed S, Thompson A, Garg S, Bochukova EG, Brage S, Trowse V, Wheeler E, Sullivan AE, Dattani M, Clayton PE, Datta V, Bruning JB, Wareham NJ, O’Rahilly S, Peet DJ, Barroso I, Whitelaw ML, Farooqi IS, Farooqi IS. Rare variants in single-minded 1 (SIM1) are associated with severe obesity. J Clin Invest 2013; 123:3042-50. [PMID: 23778139 PMCID: PMC3696558 DOI: 10.1172/jci68016] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 04/18/2013] [Indexed: 02/02/2023] Open
Abstract
Single-minded 1 (SIM1) is a basic helix-loop-helix transcription factor involved in the development and function of the paraventricular nucleus of the hypothalamus. Obesity has been reported in Sim1 haploinsufficient mice and in a patient with a balanced translocation disrupting SIM1. We sequenced the coding region of SIM1 in 2,100 patients with severe, early onset obesity and in 1,680 controls. Thirteen different heterozygous variants in SIM1 were identified in 28 unrelated severely obese patients. Nine of the 13 variants significantly reduced the ability of SIM1 to activate a SIM1-responsive reporter gene when studied in stably transfected cells coexpressing the heterodimeric partners of SIM1 (ARNT or ARNT2). SIM1 variants with reduced activity cosegregated with obesity in extended family studies with variable penetrance. We studied the phenotype of patients carrying variants that exhibited reduced activity in vitro. Variant carriers exhibited increased ad libitum food intake at a test meal, normal basal metabolic rate, and evidence of autonomic dysfunction. Eleven of the 13 probands had evidence of a neurobehavioral phenotype. The phenotypic similarities between patients with SIM1 deficiency and melanocortin 4 receptor (MC4R) deficiency suggest that some of the effects of SIM1 deficiency on energy homeostasis are mediated by altered melanocortin signaling.
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Affiliation(s)
- Shwetha Ramachandrappa
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Anne Raimondo
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Anna M.G. Cali
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Julia M. Keogh
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Elana Henning
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Sadia Saeed
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Amanda Thompson
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Sumedha Garg
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Elena G. Bochukova
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Soren Brage
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Victoria Trowse
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Eleanor Wheeler
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Adrienne E. Sullivan
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Mehul Dattani
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Peter E. Clayton
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Vippan Datta
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - John B. Bruning
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Nick J. Wareham
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Stephen O’Rahilly
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Daniel J. Peet
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Ines Barroso
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - Murray L. Whitelaw
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
| | - I. Sadaf Farooqi
- University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Discipline of Biochemistry, School of Molecular and Biomedical Science and Australian Research Council Special Research Centre for the Molecular Genetics of Development, University of Adelaide, Adelaide, Australia.
Wellcome Trust Sanger Institute, Cambridge, United Kingdom.
MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke’s Hospital, Cambridge, United Kingdom.
Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London, United Kingdom.
Manchester Academic Health Sciences Centre, Royal Manchester Children’s Hospital, Manchester, United Kingdom.
Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, United Kingdom
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Bonnefond A, Raimondo A, Stutzmann F, Ghoussaini M, Ramachandrappa S, Bersten DC, Durand E, Vatin V, Balkau B, Lantieri O, Raverdy V, Pattou F, Van Hul W, Van Gaal L, Peet DJ, Weill J, Miller JL, Horber F, Goldstone AP, Driscoll DJ, Bruning JB, Meyre D, Whitelaw ML, Froguel P. Loss-of-function mutations in SIM1 contribute to obesity and Prader-Willi-like features. J Clin Invest 2013; 123:3037-41. [PMID: 23778136 DOI: 10.1172/jci68035] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 04/18/2013] [Indexed: 11/17/2022] Open
Abstract
Sim1 haploinsufficiency in mice induces hyperphagic obesity and developmental abnormalities of the brain. In humans, abnormalities in chromosome 6q16, a region that includes SIM1, were reported in obese children with a Prader-Willi-like syndrome; however, SIM1 involvement in obesity has never been conclusively demonstrated. Here, SIM1 was sequenced in 44 children with Prader-Willi-like syndrome features, 198 children with severe early-onset obesity, 568 morbidly obese adults, and 383 controls. We identified 4 rare variants (p.I128T, p.Q152E, p.R581G, and p.T714A) in 4 children with Prader-Willi-like syndrome features (including severe obesity) and 4 other rare variants (p.T46R, p.E62K, p.H323Y, and p.D740H) in 7 morbidly obese adults. By assessing the carriers' relatives, we found a significant contribution of SIM1 rare variants to intra-family risk for obesity. We then assessed functional effects of the 8 substitutions on SIM1 transcriptional activities in stable cell lines using luciferase gene reporter assays. Three mutations showed strong loss-of-function effects (p.T46R, p.H323Y, and p.T714A) and were associated with high intra-family risk for obesity, while the variants with mild or no effects on SIM1 activity were not associated with obesity within families. Our genetic and functional studies demonstrate a firm link between SIM1 loss of function and severe obesity associated with, or independent of, Prader-Willi-like features.
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Affiliation(s)
- Amélie Bonnefond
- European Genomic Institute for Diabetes, Lille Pasteur Institute, Lille, France
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Beer NL, Osbak KK, van de Bunt M, Tribble ND, Steele AM, Wensley KJ, Edghill EL, Colcough K, Barrett A, Valentínová L, Rundle JK, Raimondo A, Grimsby J, Ellard S, Gloyn AL. Insights into the pathogenicity of rare missense GCK variants from the identification and functional characterization of compound heterozygous and double mutations inherited in cis. Diabetes Care 2012; 35:1482-4. [PMID: 22611063 PMCID: PMC3379612 DOI: 10.2337/dc11-2420] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To demonstrate the importance of using a combined genetic and functional approach to correctly interpret a genetic test for monogenic diabetes. RESEARCH DESIGN AND METHODS We identified three probands with a phenotype consistent with maturity-onset diabetes of the young (MODY) subtype GCK-MODY, in whom two potential pathogenic mutations were identified: [R43H/G68D], [E248 K/I225M], or [G261R/D217N]. Allele-specific PCR and cosegregation were used to determine phase. Single and double mutations were kinetically characterized. RESULTS The mutations occurred in cis (double mutants) in two probands and in trans in one proband. Functional studies of all double mutants revealed inactivating kinetics. The previously reported GCK-MODY mutations R43H and G68D were inherited from an affected father and unaffected mother, respectively. Both our functional and genetic studies support R43H as the cause of GCK-MODY and G68D as a neutral rare variant. CONCLUSIONS These data highlight the need for family/functional studies, even for previously reported pathogenic mutations.
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Affiliation(s)
- Nicola L Beer
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
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Lembo S, Balato A, Raimondo A, Donofrio P, Lembo C, Balato N. A preterm infant with benign neonatal hemangiomatosis and persistent patent ductus arteriosus: a curious comorbidity. GIORN ITAL DERMAT V 2012; 147:321-324. [PMID: 22648333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A female infant had been delivered prematurely at 33 weeks to a gravida 1, para 0, 32-year-old mother following normal spontaneous vaginal delivery. Because of persistent patent ductus arteriosus the new born underwent surgery after 30 days. Four months later, when the infant arrived at our observation, approximately 13 red, nodular hemangiomas ranging from 0.5 to 30 mm in diameter were scattered over the scalp, trunk, abdomen, and extremities. Laboratory and instrumental tests investigating visceral involvement were all negative. Our diagnosis was of benign neonatal hemangiomatosis. Benign neonatal hemangiomatosis is a condition with multiple congenital hemangiomas limited to the skin. The incidence in the newborn population is between 1.0% and 4% with females 4 times more affected than males. Solitary hemangiomas occur more frequently in premature neonates with a reported incidence, inversely proportional to birth weight. Although the exact mechanism for hemangioma development remains unknown, vascular growth factors seem to play a role in the pathogenesis. Proliferation most likely results from an imbalance between positive and negative angiogenic factors expressed by the hemangioma and adjacent normal tissue. Patency of the ductus arteriosus is a common complication of preterm birth. During the immediate postpartum period, a loss of vasodilatory stimuli and activation of intrinsic contractile mechanisms facilitates ductus lumen occlusion. The imbalance of these forces, linked to premature birth, interrupts the normal maturation process, leaving the immature ductus patent. Our case is the first one of benign neonatal hemangiomatosis and patency ductus arteriosus described.
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Affiliation(s)
- S Lembo
- Department of Dermatology, Federico II University of Naples, Naples, Italy.
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Raimondo A, Whitelaw M. 13-P100 Identification of target genes and coregulatory proteins of the obesity-related transcription factor Single-Minded 1. Mech Dev 2009. [DOI: 10.1016/j.mod.2009.06.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mandanici A, Raimondo A, Cutroni M, Ramos MA, Rodrigo JG, Vieira S, Armellini C, Rocca F. Thermal expansion of silver iodide-silver molybdate glasses at low temperatures. J Chem Phys 2009; 130:204508. [PMID: 19485458 DOI: 10.1063/1.3139450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Ionic glasses obtained combining silver iodide and silver molybdate are characterized by quite low values of the glass transition temperature T(g) around 320-350 K, by high values of the dc ionic conductivity even at room temperature and by a peculiar behavior of the mechanical response at ultrasonic frequencies. In fact, at temperatures well below their glass transition temperature, these glasses exhibit an intense peak of acoustic attenuation well described by two different and almost overlapping relaxational contributions. Considering also that negative thermal expansion has been reported for some molybdate crystalline compounds, we have investigated in this work the thermal expansion of two silver iodomolybdate glasses (AgI)(1-x)(Ag(2)MoO(4))(x) for x=0.25 and x=0.33 in a wide temperature range (4.2-300 K) from cryogenic temperatures up to some 20 K below T(g) using a precision capacitance dilatometer aiming to understand whether the expansivity shows some possible fingerprint corresponding to the above-mentioned mechanical response. Two different measuring methods, a quasiadiabatic and a continuous one, have been used for the thermal expansion measurements. The results are discussed in comparison with the information obtained from previous investigations based on the extended x-ray absorption fine structure (EXAFS) technique and with the behavior of other ionic glasses.
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Affiliation(s)
- A Mandanici
- Dipartimento di Fisica, Università di Messina, Salita Sperone 31, 98100 Messina, Italy
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Simeone S, Raimondo A, Menditto A, Capuano S, Scaravilli G, Bonafiglia R, de Crescenzo E, Balbi C. T03-O-14 Teenagers’ knowledge about sexuality. Sexologies 2008. [DOI: 10.1016/s1158-1360(08)72711-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ribault S, Harper K, Grave L, Lafontaine C, Nannini P, Raimondo A, Faure IB. Rapid screening method for detection of bacteria in platelet concentrates. J Clin Microbiol 2004; 42:1903-8. [PMID: 15131147 PMCID: PMC404662 DOI: 10.1128/jcm.42.5.1903-1908.2004] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Public awareness has long focused on the risks of the transmission of viral agents through blood product transfusion. This risk, however, pales in comparison to the less publicized danger associated with the transfusion of blood products contaminated with bacteria, in particular, platelet concentrates. Up to 1,000 cases of clinical sepsis after the transfusion of platelet concentrates are reported annually in the United States. The condition is characterized by acute reaction symptoms and the rapid onset of septicemia and carries a 20 to 40% mortality rate. The urgent need for a method for the routine screening of platelet concentrates to improve patient safety has long been recognized. We describe the development of a rapid and highly sensitive method for screening for bacteria in platelet concentrates for transfusion. No culture period is required; and the entire procedure, from the time of sampling to the time that the final result is obtained, takes less than 90 min. The method involves three basic stages: the selective removal of platelets by filtration following activation with a monoclonal antibody, DNA-specific fluorescent labeling of bacteria, and concentration of the bacteria on a membrane surface for enumeration by solid-phase cytometry. The method offers a universal means of detection of live, nondividing, or dead gram-negative and gram-positive bacteria in complex cellular blood products. The sensitivity is higher than those of the culture-based methods available at present, with a detection limit of 10 to 10(2) CFU/ml, depending upon the bacterial strain.
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Raimondo A. [Competences of professional nurses in transfusion: medico-legal aspects]. Prof Inferm 1995; 48:36-9. [PMID: 8693013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
This paper explains the regulations in force in our Country about the competences of the nurse during the blood transfusion and the blood astraction. Successively it underlines how it is important for the nurse to be conscious of belonging to a medical team, considering also the ethical point of view suggested, by the care activity, to all the operators. Finally the paper notices the independence of the nurse's work compared with the other medical professional figures, and the following liabilities. It points out especially the role of the nurse in handling the information and the consent for the operating action, to the entrusted patient.
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Zavagno G, Vespa D, Moschin N, Belluco C, Cecchetto A, Bertocco E, Raimondo A, Lise M. Effect of hyperthermia on isolated perfused rat liver. Eur Surg Res 1989; 21:243-50. [PMID: 2627978 DOI: 10.1159/000129033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Four groups of isolated rat livers underwent perfusion at 37 degrees C for 1 h, at 37, 40, 43 or 45 degrees C, respectively, during the 2nd hour and then at 37 degrees C again for the 3rd hour. Vascular resistance slightly decreased during hyperthermia and then significantly increased after restarting normothermic perfusion. At 40 degrees C bile production, oxygen consumption, glucose and lactate release did not significantly differ from those found in the 37 degrees C group. At 43 and 45 degrees C all these parameters were significantly impaired when compared to the 37 and 40 degrees C groups and did not recover after normothermic perfusion was restored. GOT and GPT release increased in proportion to the temperature. Microscopic examination revealed normal histologic features in 37 and 40 degrees C specimens while alterations such as vacuolization and focal necrosis were found in the 43 and 45 degrees C groups. These data indicate that the highest temperature that is well tolerated by isolated rat livers for 1 h is located between 40 and 43 degrees C.
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Affiliation(s)
- G Zavagno
- Istituto di Patologia Chirurgica I, University of Padua, Italy
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Raimondo A, Di Martino D, Adinolfi G, Volpe D. [Importance of echotomography in the diagnosis of non-gynecological endopelvic tumors: considerations on 2 cases of ectopic kidneys]. Arch Ostet Ginecol 1982; 87:79-87. [PMID: 7186802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Di Martino D, Raimondo A, Corcioni C, Adinolfi G. [Premature birth. Clinico-statistical studies 1970-1979]. Arch Ostet Ginecol 1981; 86:47-66. [PMID: 7346037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Raimondo A, Di Martino D, Adinolfi G. [Prenatal sex determination using real-time echography]. Arch Ostet Ginecol 1980; 85:405-9. [PMID: 7344674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Raimondo A, Di Martino D, Adinolfi G. [Real-time echography in the diagnosis of threatened abortion: diagnostic and prognostic evaluation compared with urinary HCG determination]. Arch Ostet Ginecol 1980; 85:411-21. [PMID: 7344675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Mazzini MA, Curia L, Raimondo A. [Erythema multiforme. Alarm reactive syndromes calling for caution in its prognostic evaluation]. Prensa Med Argent 1971; 58:501-9. [PMID: 5098514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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