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Sauve F, Nampoothiri S, Clarke SA, Fernandois D, Ferreira Coêlho CF, Dewisme J, Mills EG, Ternier G, Cotellessa L, Iglesias-Garcia C, Mueller-Fielitz H, Lebouvier T, Perbet R, Florent V, Baroncini M, Sharif A, Ereño-Orbea J, Mercado-Gómez M, Palazon A, Mattot V, Pasquier F, Catteau-Jonard S, Martinez-Chantar M, Hrabovszky E, Jourdain M, Deplanque D, Morelli A, Guarnieri G, Storme L, Robil C, Trottein F, Nogueiras R, Schwaninger M, Pigny P, Poissy J, Chachlaki K, Maurage CA, Giacobini P, Dhillo W, Rasika S, Prevot V. Long-COVID cognitive impairments and reproductive hormone deficits in men may stem from GnRH neuronal death. EBioMedicine 2023; 96:104784. [PMID: 37713808 PMCID: PMC10507138 DOI: 10.1016/j.ebiom.2023.104784] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND We have recently demonstrated a causal link between loss of gonadotropin-releasing hormone (GnRH), the master molecule regulating reproduction, and cognitive deficits during pathological aging, including Down syndrome and Alzheimer's disease. Olfactory and cognitive alterations, which persist in some COVID-19 patients, and long-term hypotestosteronaemia in SARS-CoV-2-infected men are also reminiscent of the consequences of deficient GnRH, suggesting that GnRH system neuroinvasion could underlie certain post-COVID symptoms and thus lead to accelerated or exacerbated cognitive decline. METHODS We explored the hormonal profile of COVID-19 patients and targets of SARS-CoV-2 infection in post-mortem patient brains and human fetal tissue. FINDINGS We found that persistent hypotestosteronaemia in some men could indeed be of hypothalamic origin, favouring post-COVID cognitive or neurological symptoms, and that changes in testosterone levels and body weight over time were inversely correlated. Infection of olfactory sensory neurons and multifunctional hypothalamic glia called tanycytes highlighted at least two viable neuroinvasion routes. Furthermore, GnRH neurons themselves were dying in all patient brains studied, dramatically reducing GnRH expression. Human fetal olfactory and vomeronasal epithelia, from which GnRH neurons arise, and fetal GnRH neurons also appeared susceptible to infection. INTERPRETATION Putative GnRH neuron and tanycyte dysfunction following SARS-CoV-2 neuroinvasion could be responsible for serious reproductive, metabolic, and mental health consequences in long-COVID and lead to an increased risk of neurodevelopmental and neurodegenerative pathologies over time in all age groups. FUNDING European Research Council (ERC) grant agreements No 810331, No 725149, No 804236, the European Union Horizon 2020 research and innovation program No 847941, the Fondation pour la Recherche Médicale (FRM) and the Agence Nationale de la Recherche en Santé (ANRS) No ECTZ200878 Long Covid 2021 ANRS0167 SIGNAL, Agence Nationale de la recherche (ANR) grant agreements No ANR-19-CE16-0021-02, No ANR-11-LABEX-0009, No. ANR-10-LABEX-0046, No. ANR-16-IDEX-0004, Inserm Cross-Cutting Scientific Program HuDeCA, the CHU Lille Bonus H, the UK Medical Research Council (MRC) and National Institute of Health and care Research (NIHR).
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Affiliation(s)
- Florent Sauve
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Sreekala Nampoothiri
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Sophie A Clarke
- Section of Endocrinology and Investigative Medicine, Imperial College London, London, United Kingdom
| | - Daniela Fernandois
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | | | - Julie Dewisme
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Pathology, Centre Biologie Pathologie, France
| | - Edouard G Mills
- Section of Endocrinology and Investigative Medicine, Imperial College London, London, United Kingdom
| | - Gaetan Ternier
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Ludovica Cotellessa
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | | | - Helge Mueller-Fielitz
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
| | - Thibaud Lebouvier
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Neurology, Memory Centre, Reference Centre for Early-Onset Alzheimer Disease and Related Disorders, Lille, France
| | - Romain Perbet
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Pathology, Centre Biologie Pathologie, France
| | - Vincent Florent
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Marc Baroncini
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Ariane Sharif
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - June Ereño-Orbea
- CIC bioGUNE, Basque Research and Technology Alliance (BRTACentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Bizkaia Technology Park, Building 801A, 48160, Derio, Bizkaia, Spain
| | - Maria Mercado-Gómez
- CIC bioGUNE, Basque Research and Technology Alliance (BRTACentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Bizkaia Technology Park, Building 801A, 48160, Derio, Bizkaia, Spain
| | - Asis Palazon
- CIC bioGUNE, Basque Research and Technology Alliance (BRTACentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Bizkaia Technology Park, Building 801A, 48160, Derio, Bizkaia, Spain
| | - Virginie Mattot
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Florence Pasquier
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Neurology, Memory Centre, Reference Centre for Early-Onset Alzheimer Disease and Related Disorders, Lille, France
| | - Sophie Catteau-Jonard
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Gynecology and Obstetrics, Jeanne de Flandres Hospital, F-59000, Lille, France
| | - Maria Martinez-Chantar
- CIC bioGUNE, Basque Research and Technology Alliance (BRTACentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain; Bizkaia Technology Park, Building 801A, 48160, Derio, Bizkaia, Spain
| | - Erik Hrabovszky
- Laboratory of Reproductive Neurobiology, Institute of Experimental Medicine, Budapest, Hungary
| | - Mercé Jourdain
- Univ. Lille, Inserm, CHU Lille, Service de Médecine Intensive Réanimation, U1190, EGID, F-59000 Lille, France
| | - Dominique Deplanque
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; University Lille, Inserm, CHU Lille, Centre d'investigation Clinique (CIC) 1403, F-59000, Lille, France; LICORNE Study Group, CHU Lille, Lille, France
| | - Annamaria Morelli
- Department of Experimental and Clinical Medicine, University of Florence, Italy
| | - Giulia Guarnieri
- Department of Experimental and Clinical Medicine, University of Florence, Italy
| | - Laurent Storme
- CHU Lille, Department of Neonatology, Hôpital Jeanne de Flandre, FHU 1000 Days for Health, F-59000, France
| | - Cyril Robil
- University Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - François Trottein
- University Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Ruben Nogueiras
- CIMUS, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Markus Schwaninger
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
| | - Pascal Pigny
- CHU Lille, Service de Biochimie et Hormonologie, Centre de Biologie Pathologie, Lille, France
| | - Julien Poissy
- LICORNE Study Group, CHU Lille, Lille, France; Univ. Lille, Inserm U1285, CHU Lille, Pôle de Réanimation, CNRS, UMR 8576 - UGSF - Unité de Glycobiologie Structurale et Fonctionnelle, F-59000, Lille, France
| | - Konstantina Chachlaki
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Claude-Alain Maurage
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France; CHU Lille, Department of Pathology, Centre Biologie Pathologie, France; LICORNE Study Group, CHU Lille, Lille, France
| | - Paolo Giacobini
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France
| | - Waljit Dhillo
- Section of Endocrinology and Investigative Medicine, Imperial College London, London, United Kingdom; Department of Endocrinology, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - S Rasika
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France.
| | - Vincent Prevot
- Univ. Lille, Inserm, CHU Lille, Lille Neuroscience & Cognition, UMR-S 1172, DistAlz, Lille, France.
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Nampoothiri S, Nogueiras R, Schwaninger M, Prevot V. Glial cells as integrators of peripheral and central signals in the regulation of energy homeostasis. Nat Metab 2022; 4:813-825. [PMID: 35879459 PMCID: PMC7613794 DOI: 10.1038/s42255-022-00610-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 06/15/2022] [Indexed: 01/03/2023]
Abstract
Communication between the periphery and the brain is key for maintaining energy homeostasis. To do so, peripheral signals from the circulation reach the brain via the circumventricular organs (CVOs), which are characterized by fenestrated vessels lacking the protective blood-brain barrier (BBB). Glial cells, by virtue of their plasticity and their ideal location at the interface of blood vessels and neurons, participate in the integration and transmission of peripheral information to neuronal networks in the brain for the neuroendocrine control of whole-body metabolism. Metabolic diseases, such as obesity and type 2 diabetes, can disrupt the brain-to-periphery communication mediated by glial cells, highlighting the relevance of these cell types in the pathophysiology of such complications. An improved understanding of how glial cells integrate and respond to metabolic and humoral signals has become a priority for the discovery of promising therapeutic strategies to treat metabolic disorders. This Review highlights the role of glial cells in the exchange of metabolic signals between the periphery and the brain that are relevant for the regulation of whole-body energy homeostasis.
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Affiliation(s)
- Sreekala Nampoothiri
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition, UMR-S1172, EGID, DISTALZ, Lille, France
| | - Ruben Nogueiras
- Universidade de Santiago de Compostela-Instituto de Investigation Sanitaria, Santiago de Compostela, Spain
- CIBER Fisiopatologia de la Obesidad y Nutrition, Santiago de Compostela, Spain
| | - Markus Schwaninger
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
| | - Vincent Prevot
- Univ. Lille, Inserm, CHU Lille, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience & Cognition, UMR-S1172, EGID, DISTALZ, Lille, France.
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Vona B, Schwartzbaum DA, Rodriguez AA, Lewis SS, Toosi MB, Radhakrishnan P, Bozan N, Akın R, Doosti M, Manju R, Duman D, Sineni CJ, Nampoothiri S, Karimiani EG, Houlden H, Bademci G, Tekin M, Girisha KM, Maroofian R, Douzgou S. Biallelic KITLG variants lead to a distinct spectrum of hypomelanosis and sensorineural hearing loss. J Eur Acad Dermatol Venereol 2022; 36:1606-1611. [PMID: 35543077 PMCID: PMC9546089 DOI: 10.1111/jdv.18207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 04/21/2022] [Indexed: 11/30/2022]
Abstract
Background Pathogenic variants in KITLG, a crucial protein involved in pigmentation and neural crest cell migration, cause non‐syndromic hearing loss, Waardenburg syndrome type 2, familial progressive hyperpigmentation and familial progressive hyper‐ and hypopigmentation, all of which are inherited in an autosomal dominant manner. Objectives To describe the genotypic and clinical spectrum of biallelic KITLG‐variants. Methods We used a genotype‐first approach through the GeneMatcher data sharing platform to collect individuals with biallelic KITLG variants and reviewed the literature for overlapping reports. Results We describe the first case series with biallelic KITLG variants; we expand the known hypomelanosis spectrum to include a ‘sock‐and‐glove‐like’, symmetric distribution, progressive repigmentation and generalized hypomelanosis. We speculate that KITLG biallelic loss‐of‐function variants cause generalized hypomelanosis, whilst variants with residual function lead to a variable auditory‐pigmentary disorder mostly reminiscent of Waardenburg syndrome type 2 or piebaldism. Conclusions We provide consolidating evidence that biallelic KITLG variants cause a distinct auditory‐pigmentary disorder. We evidence a significant clinical variability, similar to the one previously observed in KIT‐related piebaldism.
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Affiliation(s)
- B Vona
- Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany.,Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany
| | - D A Schwartzbaum
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - A A Rodriguez
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - S S Lewis
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - M B Toosi
- Department of Pediatrics, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - P Radhakrishnan
- Suma Genomics Private Limited and Manipal Center for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, India
| | - N Bozan
- Department of Otolaryngology, Yuzuncu Yıl University Faculty of Medicine, Van, Turkey
| | - R Akın
- Department of Otolaryngology, Yuzuncu Yıl University Faculty of Medicine, Van, Turkey
| | - M Doosti
- Department of Medical Genetics, Next Generation Genetic Polyclinic, Mashhad, Iran
| | - R Manju
- Renai Medicity, Cochin, Kerala, India
| | - D Duman
- Department of Audiology, Ankara University Faculty of Health Sciences, Ankara, Turkey
| | - C J Sineni
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - S Nampoothiri
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Kochi, India
| | - E G Karimiani
- Department of Medical Genetics, Next Generation Genetic Polyclinic, Mashhad, Iran.,Molecular and Clinical Sciences Institute, St. George's, University of London, Cranmer Terrace, London, SW17 0RE, UK.,Innovative medical research center, Mashhad branch, Islamic Azad University, Mashhad, Iran
| | - H Houlden
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, UK
| | - G Bademci
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Tekin
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - K M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.,Suma Genomics Private Limited and Manipal Center for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, India
| | - R Maroofian
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, UK
| | - S Douzgou
- Department of Medical Genetics, Haukeland University Hospital, Bergen, Norway.,Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
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Harms FL, Nampoothiri S, Kortüm F, Thomas J, Panicker VV, Alawi M, Altmüller J, Yesodharan D, Kutsche K. Coinheritance of biallelic SLURP1 and SLC39A4 mutations cause a severe genodermatosis with skin peeling and hair loss all over the body. Br J Dermatol 2018; 179:1192-1194. [PMID: 29947416 DOI: 10.1111/bjd.16912] [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: 11/30/2022]
Affiliation(s)
- F L Harms
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - S Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences & Research Centre, Cochin, Kerala, India
| | - F Kortüm
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - J Thomas
- Dermatology Department, Amrita Institute of Medical Sciences & Research Centre, Cochin, Kerala, India
| | - V V Panicker
- Dermatology Department, Amrita Institute of Medical Sciences & Research Centre, Cochin, Kerala, India
| | - M Alawi
- University Medical Center Hamburg-Eppendorf, Bioinformatics Core, Hamburg, Germany
| | - J Altmüller
- Cologne Center for Genomics, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.,Institute of Human Genetics, University of Cologne, Cologne, Germany
| | - D Yesodharan
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences & Research Centre, Cochin, Kerala, India
| | - K Kutsche
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
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Salian S, Shukla A, Shah H, Bhat SN, Bhat VR, Nampoothiri S, Shenoy R, Phadke SR, Hariharan SV, Girisha KM. Seven additional families with spondylocarpotarsal synostosis syndrome with novel biallelic deleterious variants in FLNB. Clin Genet 2018; 94:159-164. [PMID: 29566257 DOI: 10.1111/cge.13252] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/15/2018] [Accepted: 03/17/2018] [Indexed: 02/01/2023]
Abstract
The location and/or type of variants in FLNB result in a spectrum of osteochondrodysplasias ranging from mild forms, like spondylocarpotarsal synostosis syndrome and Larsen syndrome, to severe perinatal lethal forms, such as atelosteogenesis I and III and Boomerang dysplasia. Spondylocarpotarsal synostosis syndrome is characterized by disproportionate short stature, vertebral anomalies and fusion of carpal and tarsal bones. Biallelic loss-of-function variants in FLNB are known to cause spondylocarpotarsal synostosis syndrome and 9 families and 9 pathogenic variants have been reported so far. We report clinical features of 10 additional patients from 7 families with spondylocarpotarsal synostosis syndrome due to 7 novel deleterious variants in FLNB, thus expanding the clinical and molecular repertoire of spondylocarpotarsal synostosis syndrome. Our report validates key clinical (fused thoracic vertebrae and carpal and tarsal coalition) and molecular (truncating variants in FLNB) characteristics of this condition.
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Affiliation(s)
- S Salian
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - A Shukla
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - H Shah
- Department of Orthopedics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - S N Bhat
- Department of Orthopedics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - V R Bhat
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - S Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Cochin, Kerala, India
| | - R Shenoy
- Department of Pediatrics, KS Hegde Medical Academy, Mangalore, Karnataka, India
| | - S R Phadke
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - S V Hariharan
- Department of Pediatrics, Sree Avittom Thirunal Hospital, Government Medical College, Trivandrum, Kerala, India
| | - K M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Padmanabhan LD, Yesodharan D, Nampoothiri S. Prenatal diagnosis of nail patella syndrome: A case report. Indian J Radiol Imaging 2017; 27:329-331. [PMID: 29089684 PMCID: PMC5644329 DOI: 10.4103/ijri.ijri_438_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The Nail Patella Syndrome (NPS) is an autosomal dominant connective tissue disorder affecting the nails, skeletal system, kidneys and eyes. Here, we report a case of NPS detected at 19 weeks of gestation. The movements of the elbow and knee joints were restricted and there was rotational deformity of the knee joints. To our knowledge, this is the first report of in-utero restriction of limb movements in a fetus with NPS.
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Affiliation(s)
- L D Padmanabhan
- Division of Perinatology, Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, India
| | - D Yesodharan
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, India
| | - S Nampoothiri
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, India
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Sugunan S, Nampoothiri S, Garg T, Krishnamurthy R. Role of KCa3.1 Channels in CNS Diseases: A Concise Review. CNSNDDT 2016; 15:1299-1305. [DOI: 10.2174/1871527315666160822111913] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 08/08/2016] [Accepted: 08/09/2016] [Indexed: 11/22/2022]
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Putoux A, Alqahtani A, Pinson L, Paulussen ADC, Michel J, Besson A, Mazoyer S, Borg I, Nampoothiri S, Vasiljevic A, Uwineza A, Boggio D, Champion F, de Die-Smulders CE, Gardeitchik T, van Putten WK, Perez MJ, Musizzano Y, Razavi F, Drunat S, Verloes A, Hennekam R, Guibaud L, Alix E, Sanlaville D, Lesca G, Edery P. Refining the phenotypical and mutational spectrum of Taybi-Linder syndrome. Clin Genet 2016; 90:550-555. [PMID: 27040866 DOI: 10.1111/cge.12781] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/19/2016] [Accepted: 03/21/2016] [Indexed: 02/04/2023]
Abstract
Taybi-Linder syndrome (TALS, OMIM 210710) is a rare autosomal recessive disorder belonging to the group of microcephalic osteodysplastic primordial dwarfisms (MOPD). This syndrome is characterized by short stature, skeletal anomalies, severe microcephaly with brain malformations and facial dysmorphism, and is caused by mutations in RNU4ATAC. RNU4ATAC is transcribed into a non-coding small nuclear RNA which is a critical component of the minor spliceosome. We report here four foetuses and four unrelated patients with RNU4ATAC mutations. We provide antenatal descriptions of this rare syndrome including unusual features found in two twin foetuses with compound heterozygosity for two rare mutations who presented with mild intrauterine growth retardation and atypical dysmorphic facial features. We also carried out a literature review of the patients described up to now with RNU4ATAC mutations, affected either with TALS or Roifman syndrome, a recently described allelic disorder.
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Affiliation(s)
- A Putoux
- Service de Génétique, Hospices Civils de Lyon, Lyon, France.,Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
| | - A Alqahtani
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | - L Pinson
- Département de Génétique Médicale, Centre Hospitalier Universitaire, Montpellier, France
| | - A D C Paulussen
- Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, the Netherlands.,School for Oncology & Developmental Biology (GROW), Maastricht University Medical Centre, Maastricht, the Netherlands
| | - J Michel
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | - A Besson
- Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
| | - S Mazoyer
- Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
| | - I Borg
- Department of Pathology, University of Malta, Medical Genetics Unit, Mater Dei Hospital, Malta
| | - S Nampoothiri
- Department of Paediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Cochin, India
| | - A Vasiljevic
- Centre de Pathologie et Neuropathologie Est, Hospices Civils de Lyon, Lyon, France
| | - A Uwineza
- Centre for Medical Genetics, College of Medicine and Health Sciences, University of Rwanda, Huye, Rwanda
| | - D Boggio
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | - F Champion
- Service de Gynécologie-Obstétrique, Hospices Civils de Lyon, Lyon, France
| | - C E de Die-Smulders
- Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, the Netherlands.,School for Oncology & Developmental Biology (GROW), Maastricht University Medical Centre, Maastricht, the Netherlands
| | - T Gardeitchik
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - W K van Putten
- Paediatric Intensive Care Unit, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - M J Perez
- Département de Génétique Médicale, Unité de fœtopathologie, Centre Hospitalier Universitaire, Montpellier, France
| | - Y Musizzano
- Département de Pathologie Tissulaire et Cellulaire des tumeurs, Pôle Biologie Pathologie, Centre Hospitalier Universitaire, Montpellier, France
| | - F Razavi
- Département de Génétique Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfant Malade, Paris, France
| | - S Drunat
- Department of Genetics, APHP-Robert DEBRE University Hospital, and Paris-Diderot University, Paris, France
| | - A Verloes
- Department of Genetics, APHP-Robert DEBRE University Hospital, and Paris-Diderot University, Paris, France
| | - R Hennekam
- Department of Paediatrics, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - L Guibaud
- Département d'Imagerie Pédiatrique et Fœtale, Centre Pluridisciplinaire de Diagnostic Prénatal, Hôpital Femme Mère Enfant, Lyon-Bron, France
| | - E Alix
- Service de Génétique, Hospices Civils de Lyon, Lyon, France
| | - D Sanlaville
- Service de Génétique, Hospices Civils de Lyon, Lyon, France.,Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
| | - G Lesca
- Service de Génétique, Hospices Civils de Lyon, Lyon, France.,Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
| | - P Edery
- Service de Génétique, Hospices Civils de Lyon, Lyon, France.,Centre de Recherche en Neurosciences de Lyon, INSERM U1028, UMR CNRS 5292, Université Claude Bernard Lyon 1, Lyon, France
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9
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Uttarilli A, Ranganath P, Matta D, Md Nurul Jain J, Prasad K, Babu AS, Girisha KM, Verma IC, Phadke SR, Mandal K, Puri RD, Aggarwal S, Danda S, Sankar VH, Kapoor S, Bhat M, Gowrishankar K, Hasan AQ, Nair M, Nampoothiri S, Dalal A. Identification and characterization of 20 novel pathogenic variants in 60 unrelated Indian patients with mucopolysaccharidoses type I and type II. Clin Genet 2016; 90:496-508. [PMID: 27146977 DOI: 10.1111/cge.12795] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/23/2016] [Accepted: 05/01/2016] [Indexed: 11/30/2022]
Abstract
Mucopolysaccharidoses (MPS), a subgroup of lysosomal storage disorders, are caused due to deficiency of specific lysosomal enzyme involved in catabolism of glycosaminoglycans. To date more than 200 pathogenic variants in the alpha-l-iduronidase (IDUA) for MPS I and ∼500 pathogenic variants in the iduronate-2-sulphatase (IDS) for MPS II have been reported worldwide. The mutation spectrum of MPS type I and MPS type II disorders in Indian population is not characterized yet. In this study, we carried out clinical, biochemical, molecular and in silico analyses to establish the mutation spectrum of MPS I and MPS II in the Indian population. We conducted molecular analysis for 60 MPS-affected patients [MPS I (n = 30) (Hurler syndrome = 17, Hurler-Scheie syndrome = 13), and MPS II (n = 30) (severe = 18, attenuated = 12)] and identified a total of 44 [MPS I (n = 22) and MPS II (n = 22)] different pathogenic variants comprising missense, nonsense, frameshift, gross deletions and splice site variants. A total of 20 [MPS I (n = 14), and MPS II (n = 6)] novel pathogenic sequence variants were identified in our patient cohort. We found that 32% of pathogenic variants detected in IDUA were recurrent and 25% in MPS II. This is the first study revealing the mutation spectrum of MPS I and MPS II patients in the Indian population.
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Affiliation(s)
- A Uttarilli
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India.,Graduate Studies, Manipal University, Manipal, India
| | - P Ranganath
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India.,Department of Medical Genetics, Nizam's Institute of Medical Sciences, Hyderabad, India
| | - D Matta
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - J Md Nurul Jain
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - K Prasad
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - A S Babu
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
| | - K M Girisha
- Department of Medical Genetics, Kasturba Medical College, Manipal, India
| | - I C Verma
- Center of Medical Genetics, Sir Ganga Ram Hospital, New Delhi, India
| | - S R Phadke
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - K Mandal
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - R D Puri
- Center of Medical Genetics, Sir Ganga Ram Hospital, New Delhi, India
| | - S Aggarwal
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India.,Department of Medical Genetics, Nizam's Institute of Medical Sciences, Hyderabad, India
| | - S Danda
- Department of Clinical Genetics, Christian Medical College and Hospital, Vellore, India
| | - V H Sankar
- Genetics Clinic, Department of Pediatrics, SAT Hospital, Government Medical College, Trivandrum, India
| | - S Kapoor
- Department of Pediatrics, Maulana Azad Medical College, New Delhi, India
| | - M Bhat
- Centre for Human Genetics, Bengaluru, India
| | | | - A Q Hasan
- Department of Genetics, Kamineni Hospital, Hyderabad, India
| | - M Nair
- Additional Professor in Pediatrics, Government Medical College, Manjeri, India
| | - S Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences, Kochi, India
| | - A Dalal
- Diagnostics Division, Centre for DNA Fingerprinting and Diagnostics, Hyderabad, India
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10
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Hanson D, Murray PG, Coulson T, Sud A, Omokanye A, Stratta E, Sakhinia F, Bonshek C, Wilson LC, Wakeling E, Temtamy SA, Aglan M, Rosser EM, Mansour S, Carcavilla A, Nampoothiri S, Khan WI, Banerjee I, Chandler KE, Black GCM, Clayton PE. Mutations in CUL7, OBSL1 and CCDC8 in 3-M syndrome lead to disordered growth factor signalling. J Mol Endocrinol 2012; 49:267-75. [PMID: 23018678 DOI: 10.1530/jme-12-0034] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [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] [Indexed: 11/08/2022]
Abstract
3-M syndrome is a primordial growth disorder caused by mutations in CUL7, OBSL1 or CCDC8. 3-M patients typically have a modest response to GH treatment, but the mechanism is unknown. Our aim was to screen 13 clinically identified 3-M families for mutations, define the status of the GH-IGF axis in 3-M children and using fibroblast cell lines assess signalling responses to GH or IGF1. Eleven CUL7, three OBSL1 and one CCDC8 mutations in nine, three and one families respectively were identified, those with CUL7 mutations being significantly shorter than those with OBSL1 or CCDC8 mutations. The majority of 3-M patients tested had normal peak serum GH and normal/low IGF1. While the generation of IGF binding proteins by 3-M cells was dysregulated, activation of STAT5b and MAPK in response to GH was normal in CUL7(-/-) cells but reduced in OBSL1(-/-) and CCDC8(-/-) cells compared with controls. Activation of AKT to IGF1 was reduced in CUL7(-/-) and OBSL1(-/-) cells at 5 min post-stimulation but normal in CCDC8(-/-) cells. The prevalence of 3-M mutations was 69% CUL7, 23% OBSL1 and 8% CCDC8. The GH-IGF axis evaluation could reflect a degree of GH resistance and/or IGF1 resistance. This is consistent with the signalling data in which the CUL7(-/-) cells showed impaired IGF1 signalling, CCDC8(-/-) cells showed impaired GH signalling and the OBSL1(-/-) cells showed impairment in both pathways. Dysregulation of the GH-IGF-IGF binding protein axis is a feature of 3-M syndrome.
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Affiliation(s)
- D Hanson
- Paediatric Endocrinology, School of Biomedicine, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9WL, UK
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11
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Anilkumar A, Kappanayil M, Thampi MV, Nampoothiri S, Sundaram KR, Vasudevan DM. Variation in prevalence of chromosome 22q11 deletion in subtypes of conotruncal defect in 254 children. Acta Paediatr 2011; 100:e97-100. [PMID: 21418101 DOI: 10.1111/j.1651-2227.2011.02271.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM To determine the frequency of chromosomal aberrations particularly 22q11 deletion in Indian children ≤2 years with different types of conotruncal malformations and their association with abnormal aortic arch. Additionally, extracardiac features were also studied. METHODS Conventional cytogenetic and fluorescence in situ hybridization analyses were performed in 254 patients with conotruncal defects. Multivariable logistic regression analysis was performed to ascertain extracardiac features helpful in identifying high-risk patients with deletion. RESULTS Chromosomal abnormalities were identified in 52 (21%) children, of whom 49 (94%) showed 22q11 deletion and 3 (6%) had abnormalities of chromosome 6, 2 and X. None of the 11/254 children with tetralogy of Fallot with absent pulmonary valve showed deletion. The association of 22q11 deletion with right sidedness of the aortic arch varied with the type of conotruncal defect. The eight extracardiac features in combination showed 93.5% agreement with the presence of deletion. CONCLUSION The extracardiac features along with specific type of conotruncal defect and associated cardiovascular anomaly should alert the clinician for 22q11 deletion testing. However, if deletion analysis is not possible, specific extracardiac features (six dysmorphic facial features, thin long fingers and hypocalcemia) can help to identify an increased risk of 22q11 deletion in patients with conotruncal defect.
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Affiliation(s)
- A Anilkumar
- Department of Human Cytogenetics, Amrita Institute of Medical Sciences and Research Centre, Kochi, India.
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12
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Dai J, Kim OH, Cho TJ, Schmidt-Rimpler M, Tonoki H, Takikawa K, Haga N, Miyoshi K, Kitoh H, Yoo WJ, Choi IH, Song HR, Jin DK, Kim HT, Kamasaki H, Bianchi P, Grigelioniene G, Nampoothiri S, Minagawa M, Miyagawa SI, Fukao T, Marcelis C, Jansweijer MCE, Hennekam RCM, Bedeschi F, Mustonen A, Jiang Q, Ohashi H, Furuichi T, Unger S, Zabel B, Lausch E, Superti-Furga A, Nishimura G, Ikegawa S. Novel and recurrent TRPV4 mutations and their association with distinct phenotypes within the TRPV4 dysplasia family. J Med Genet 2010; 47:704-9. [PMID: 20577006 DOI: 10.1136/jmg.2009.075358] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Mutations in TRPV4, a gene that encodes a Ca(2+) permeable non-selective cation channel, have recently been found in a spectrum of skeletal dysplasias that includes brachyolmia, spondylometaphyseal dysplasia, Kozlowski type (SMDK) and metatropic dysplasia (MD). Only a total of seven missense mutations were detected, however. The full spectrum of TRPV4 mutations and their phenotypes remained unclear. OBJECTIVES AND METHODS To examine TRPV4 mutation spectrum and phenotype-genotype association, we searched for TRPV4 mutations by PCR-direct sequencing from genomic DNA in 22 MD and 20 SMDK probands. RESULTS TRPV4 mutations were found in all but one MD subject. In total, 19 different heterozygous mutations were identified in 41 subjects; two were recurrent and 17 were novel. In MD, a recurrent P799L mutation was identified in nine subjects, as well as 10 novel mutations including F471del, the first deletion mutation of TRPV4. In SMDK, a recurrent R594H mutation was identified in 12 subjects and seven novel mutations. An association between the position of mutations and the disease phenotype was also observed. Thus, P799 in exon 15 is a hot codon for MD mutations, as four different amino acid substitutions have been observed at this codon; while R594 in exon 11 is a hotspot for SMDK mutations. CONCLUSION The TRPV4 mutation spectrum in MD and SMDK, which showed genotype-phenotype correlation and potential functional significance of mutations that are non-randomly distributed over the gene, was presented in this study. The results would help diagnostic laboratories establish efficient screening strategies for genetic diagnosis of the TRPV4 dysplasia family diseases.
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Affiliation(s)
- J Dai
- Laboratory for Bone and Joint Diseases, Center for Genomic Medicine, 4-6-1 Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
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13
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Kedar PS, Nampoothiri S, Sreedhar S, Ghosh K, Shimizu K, Kanno H, Colah RB. First-trimester prenatal diagnosis of pyruvate kinase deficiency in an Indian family with the pyruvate kinase-Amish mutation. Genet Mol Res 2007; 6:470-475. [PMID: 17952871] [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: 05/25/2023]
Abstract
Pyruvate kinase (PK) deficiency is a rare red cell glycolytic enzymopathy. The purpose of the present investigation was to offer prenatal diagnosis for PK deficiency to a couple who had a previous child with severe enzyme deficiency and congenital non-spherocytic hemolytic anemia. PK deficiency was identified in the family by assaying the enzyme activity in red cells. Chorionic villus sampling was performed in an 11-week gestation and the mutation was located in exon 10 of the PKLR gene characterized by polymerase chain reaction and using restriction endonuclease digestion with the MspI enzyme, which was confirmed by DNA sequencing on the ABI 310 DNA sequencer. Both the parents were heterozygous for the 1436G-->A [479 Arg-->His] mutation in exon 10 and the proband was homozygous for this mutation. The fetus was also heterozygous for this mutation and the pregnancy was continued. Prenatal diagnosis allowed the parents with a severely affected child with PK deficiency to have the reproductive choice of having the fetus tested in a subsequent pregnancy.
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Affiliation(s)
- P S Kedar
- Institute of Immunohaematology, Indian Council of Medical Research, K.E.M. Hospital Campus, Parel, Mumbai, India
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