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Kulsirichawaroj P, Suksangkharn Y, Nam DE, Pho-iam T, Limwongse C, Chung KW, Sanmaneechai O, Zuchner SL, Choi BO. Gene Distribution in Pediatric-Onset Inherited Peripheral Neuropathy: A Single Tertiary Center in Thailand. J Neuromuscul Dis 2024; 11:191-199. [PMID: 37927275 PMCID: PMC10789325 DOI: 10.3233/jnd-230174] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Inherited peripheral neuropathy presents a diagnostic and therapeutic challenge due to its association with mutations in over 100 genes. This condition leads to long-term disability and poses a substantial healthcare burden on society. OBJECTIVE This study aimed to investigate the distribution of genes and establish the genotype-phenotype correlations, focusing on pediatric-onset cases. METHODS Exome sequencing and other analytical techniques were employed to identify pathogenic variants, including duplication analysis of the PMP22 gene. Each patient underwent physical examination and electrophysiological studies. Genotypes were correlated with phenotypic features, such as age at disease onset and ulnar motor nerve conduction velocity. RESULTS We identified 35 patients with pediatric-onset inherited peripheral neuropathy. Pathogenic or likely pathogenic variants were confirmed in 24 out of 35 (68.6%) patients, with 4 of these variants being novel. A confirmed molecular diagnosis was achieved in 90.9% (10/11) of patients with demyelinating Charcot-Marie-Tooth disease (CMT) and 56.3% (9/16) of patients with axonal CMT. Among patients with infantile-onset CMT (≤2 years), the most common causative genes were MFN2 and NEFL, while GDAP1 and MFN2 were frequent causes among patients with childhood- or adolescent-onset CMT (3-9 years). CONCLUSIONS The MFN2 gene was the most commonly implicated gene, and the axonal type was predominant in this cohort of Thai patients with pediatric-onset inherited peripheral neuropathy.
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Affiliation(s)
- Pimchanok Kulsirichawaroj
- Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
| | - Yanin Suksangkharn
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Da Eun Nam
- Department of Biological Sciences, Kongju National University, Gongju, Korea
| | - Theeraphong Pho-iam
- Siriraj Genomics, Office of the Dean, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
| | - Chanin Limwongse
- Siriraj Genomics, Office of the Dean, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
- Division of Medical Genetics, Department of Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
| | - Ki Wha Chung
- Department of Biological Sciences, Kongju National University, Gongju, Korea
| | - Oranee Sanmaneechai
- Department of Pediatrics, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
- Center of Research Excellence for Neuromuscular Diseases, Faculty of Medicine, Siriraj Hospital, Mahidol University, Nakhon Pathom, Thailand
| | - Stephan L. Zuchner
- Department of Human Genetics, University of Miami Health System, Miami, FL, USA
| | - Byung-Ok Choi
- Department of Neurology, Samsung Medical Center, and Samsung Advanced Institute for Health Science & Tech, Sungkyunkwan University School of Medicine, Seoul, Korea
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Vermeiren S, Cabochette P, Dannawi M, Desiderio S, San José AS, Achouri Y, Kricha S, Sitte M, Salinas-Riester G, Vanhollebeke B, Brunet JF, Bellefroid EJ. Prdm12 represses the expression of the visceral neuron determinants Phox2a/b in developing somatosensory ganglia. iScience 2023; 26:108364. [PMID: 38025786 PMCID: PMC10663820 DOI: 10.1016/j.isci.2023.108364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/13/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Prdm12 is a transcriptional regulator essential for the emergence of the somatic nociceptive lineage during sensory neurogenesis. The exact mechanisms by which Prdm12 promotes nociceptor development remain, however, poorly understood. Here, we report that the trigeminal and dorsal root ganglia hypoplasia induced by the loss of Prdm12 involves Bax-dependent apoptosis and that it is accompanied by the ectopic expression of the visceral sensory neuron determinants Phox2a and Phox2b, which is, however, not sufficient to impose a complete fate switch in surviving somatosensory neurons. Mechanistically, our data reveal that Prdm12 is required from somatosensory neural precursors to early post-mitotic differentiating nociceptive neurons to repress Phox2a/b and that its repressive function is context dependent. Together, these findings reveal that besides its essential role in nociceptor survival during development, Prdm12 also promotes nociceptor fate via an additional mechanism, by preventing precursors from engaging into an alternate Phox2 driven visceral neuronal type differentiation program.
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Affiliation(s)
- Simon Vermeiren
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Pauline Cabochette
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Maya Dannawi
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Simon Desiderio
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Alba Sabaté San José
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Younes Achouri
- Transgenesis Platform, de Duve Institute, Université Catholique de Louvain, Institut de Duve, Brussels, Belgium
| | - Sadia Kricha
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Maren Sitte
- NGS Integrative Genomics, Department of Human Genetics at the University Medical Center Göttingen (UMG), 37075 Göttingen, Germany
| | - Gabriela Salinas-Riester
- NGS Integrative Genomics, Department of Human Genetics at the University Medical Center Göttingen (UMG), 37075 Göttingen, Germany
| | - Benoit Vanhollebeke
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
| | - Jean-François Brunet
- Institut de Biologie de l’ENS (IBENS), Inserm, CNRS, École Normale Supérieure, PSL Research University, 75005 Paris, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 8197, 75005 Paris, France
- Institut National de la Santé et de la Recherche Médicale U1024, 75005 Paris, France
| | - Eric J. Bellefroid
- Department of Molecular Biology, ULB Neuroscience Institute (UNI), Université libre de Bruxelles (ULB), B-6041 Gosselies, Belgium
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3
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Yu H, Wu J, Cong J, Chen M, Huang Y, Yu J, Wang L. Congenital insensitivity to pain associated with PRDM12 mutation: Two case reports and a literature review. Front Genet 2023; 14:1139161. [PMID: 37021010 PMCID: PMC10067717 DOI: 10.3389/fgene.2023.1139161] [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: 01/06/2023] [Accepted: 02/27/2023] [Indexed: 03/22/2023] Open
Abstract
Background:PRDM12 is a newly discovered gene responsible for congenital insensitivity to pain (CIP). Its clinical manifestations are various and not widely known.Methods: The clinical data of two infants diagnosed with CIP associated with PRDM12 mutation were collected. A literature review was performed, and the clinical characteristics of 20 cases diagnosed with a mutation of PRDM12 were summarized and analyzed.Results: Two patients had pain insensitivity, tongue and lip defects, and corneal ulcers. The genomic analysis results showed that variants of PRDM12 were detected in the two families. The case 1 patient carried heterozygous variations of c.682+1G > A and c.502C > T (p.R168C), which were inherited from her father and mother, respectively. We enrolled 22 patients diagnosed with CIP through a literature review together with our cases. There were 16 male (72.7%) and 6 female (27.3%) patients. The age of onset ranged from 6 months to 57 years. The prevalence of clinic manifestation was 14 cases with insensitivity to pain (63.6%), 19 cases with self-mutilation behaviors (86.4%), 11 cases with tongue and lip defects (50%), 5 cases with mid-facial lesions (22.7%), 6 cases with distal phalanx injury (27.3%), 11 cases of recurrent infection (50%), 3 cases (13.6%) with anhidrosis, and 5 cases (22.7%) with global developmental delay. The prevalence of ocular symptoms was 11 cases (50%) with reduced tear secretion, 6 cases (27.3%) with decreased corneal sensitivity, 7 cases (31.8%) with disappeared corneal reflexes, 5.5 cases (25%, 0.5 indicated a single eye) with corneal opacity, 5 cases (22.7%) with corneal ulceration, and 1 case (4.5%) with a corneal scar.Conclusion: The syndrome caused by PRDM12 mutation is a clinically distinct and diagnosable disease that requires joint multidisciplinary management to control the development of the disease and minimize the occurrence of complications.
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Affiliation(s)
- Hanrui Yu
- Medical School of Chinese PLA, Beijing, China
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jie Wu
- Department of Ophthalmology, Hainan Hospital of Chinese PLA General Hospital, Sanya, China
| | - Jinju Cong
- Aier Eye Hospital, Qianjiang, Hubei Province, China
| | | | - Yifei Huang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Jifeng Yu
- Department of Ophthalmology, Beijing Children Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
- *Correspondence: Liqiang Wang, ; Jifeng Yu,
| | - Liqiang Wang
- Department of Ophthalmology, The Third Medical Center, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Liqiang Wang, ; Jifeng Yu,
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Donoso V, Whitson J, Lom B. Developmental exposure to the pesticide malathion enhances expression of Prdm12, a regulator of nociceptor development, in Xenopus laevis. MicroPubl Biol 2023; 2023:10.17912/micropub.biology.000786. [PMID: 37033708 PMCID: PMC10074175 DOI: 10.17912/micropub.biology.000786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 02/18/2023] [Accepted: 02/28/2023] [Indexed: 04/11/2023]
Abstract
The transcription factor Prdm12 exerts important influences on the development of nociceptors, peripheral touch and pain-sensing neurons, and has been implicated in human pain sensation disorders. We examined the consequences of exposing developing Xenopus laevis embryos to the commonly used pesticide malathion on Prdm12 expression. Using qPCR and western blot analysis we observed that malathion treatment for the first six days of tadpole development significantly increased both prdm12 mRNA levels and Prdm12 protein levels compared to controls. Consequently, early exposure to this pesticide has potential to alter nociceptor development.
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Affiliation(s)
- Valeria Donoso
- Biology, Davidson College, Davidson, North Carolina, United States
- Preventative Medicine, Northwestern University, Chicago, Illinois, United States
| | - Jeremy Whitson
- Biology, Davidson College, Davidson, North Carolina, United States
- Biology, High Point University, High Point, North Carolina, United States
| | - Barbara Lom
- Biology, Davidson College, Davidson, North Carolina, United States
- Correspondence to: Barbara Lom (
)
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5
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Rienzo M, Di Zazzo E, Casamassimi A, Gazzerro P, Perini G, Bifulco M, Abbondanza C. PRDM12 in Health and Diseases. Int J Mol Sci 2021; 22:ijms222112030. [PMID: 34769459 PMCID: PMC8585061 DOI: 10.3390/ijms222112030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 11/18/2022] Open
Abstract
PRDM12 is a member of the PRDI-BF1 (positive regulatory domain I-binding factor 1) homologous domain (PRDM)-containing protein family, a subfamily of Kruppel-like zinc finger proteins, controlling key processes in the development of cancer. PRDM12 is expressed in a spatio-temporal manner in neuronal systems where it exerts multiple functions. PRDM12 is essential for the neurogenesis initiation and activation of a cascade of downstream pro-neuronal transcription factors in the nociceptive lineage. PRDM12 inactivation, indeed, results in a complete absence of the nociceptive lineage, which is essential for pain perception. Additionally, PRDM12 contributes to the early establishment of anorexigenic neuron identity and the maintenance of high expression levels of pro-opiomelanocortin, which impacts on the program bodyweight homeostasis. PRDMs are commonly involved in cancer, where they act as oncogenes/tumor suppressors in a “Yin and Yang” manner. PRDM12 is not usually expressed in adult normal tissues but its expression is re-activated in several cancer types. However, little information is currently available on PRDM12 expression in cancers and its mechanism of action has not been thoroughly described. In this review, we summarize the recent findings regarding PRDM12 by focusing on four main biological processes: neurogenesis, pain perception, oncogenesis and cell metabolism. Moreover, we wish to highlight the importance of future studies focusing on the PRDM12 signaling pathway(s) and its role in cancer onset and progression.
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Affiliation(s)
- Monica Rienzo
- Department of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy;
| | - Erika Di Zazzo
- Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, 86100 Campobasso, Italy;
| | - Amelia Casamassimi
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio, 80138 Naples, Italy;
- Correspondence:
| | - Patrizia Gazzerro
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Salerno, Italy;
| | - Giovanni Perini
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy;
| | - Maurizio Bifulco
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, 80131 Naples, Italy;
| | - Ciro Abbondanza
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio, 80138 Naples, Italy;
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6
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Landy MA, Goyal M, Casey KM, Liu C, Lai HC. Loss of Prdm12 during development, but not in mature nociceptors, causes defects in pain sensation. Cell Rep 2021; 34:108913. [PMID: 33789102 PMCID: PMC8048104 DOI: 10.1016/j.celrep.2021.108913] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/11/2021] [Accepted: 03/05/2021] [Indexed: 12/30/2022] Open
Abstract
Prdm12 is a key transcription factor in nociceptor neurogenesis. Mutations of Prdm12 cause congenital insensitivity to pain (CIP) from failure of nociceptor development. However, precisely how deletion of Prdm12 during development or adulthood affects nociception is unknown. Here, we employ tissue- and temporal-specific knockout mouse models to test the function of Prdm12 during development and in adulthood. We find that constitutive loss of Prdm12 causes deficiencies in proliferation during sensory neurogenesis. We also demonstrate that conditional knockout from dorsal root ganglia (DRGs) during embryogenesis causes defects in nociception. In contrast, we find that, in adult DRGs, Prdm12 is dispensable for most pain-sensation and injury-induced hypersensitivity. Using transcriptomic analysis, we find mostly unique changes in adult Prdm12 knockout DRGs compared with embryonic knockout and that PRDM12 is likely a transcriptional activator in the adult. Overall, we find that the function of PRDM12 changes over developmental time.
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Affiliation(s)
- Mark A Landy
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Megan Goyal
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Katherine M Casey
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chen Liu
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, Hypothalamic Research Center, Dallas, TX 75390, USA
| | - Helen C Lai
- Department of Neuroscience, UT Southwestern Medical Center, Dallas, TX 75390, USA.
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7
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Vermeiren S, Bellefroid EJ, Desiderio S. Vertebrate Sensory Ganglia: Common and Divergent Features of the Transcriptional Programs Generating Their Functional Specialization. Front Cell Dev Biol 2020; 8:587699. [PMID: 33195244 PMCID: PMC7649826 DOI: 10.3389/fcell.2020.587699] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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: 07/27/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022] Open
Abstract
Sensory fibers of the peripheral nervous system carry sensation from specific sense structures or use different tissues and organs as receptive fields, and convey this information to the central nervous system. In the head of vertebrates, each cranial sensory ganglia and associated nerves perform specific functions. Sensory ganglia are composed of different types of specialized neurons in which two broad categories can be distinguished, somatosensory neurons relaying all sensations that are felt and visceral sensory neurons sensing the internal milieu and controlling body homeostasis. While in the trunk somatosensory neurons composing the dorsal root ganglia are derived exclusively from neural crest cells, somato- and visceral sensory neurons of cranial sensory ganglia have a dual origin, with contributions from both neural crest and placodes. As most studies on sensory neurogenesis have focused on dorsal root ganglia, our understanding of the molecular mechanisms underlying the embryonic development of the different cranial sensory ganglia remains today rudimentary. However, using single-cell RNA sequencing, recent studies have made significant advances in the characterization of the neuronal diversity of most sensory ganglia. Here we summarize the general anatomy, function and neuronal diversity of cranial sensory ganglia. We then provide an overview of our current knowledge of the transcriptional networks controlling neurogenesis and neuronal diversification in the developing sensory system, focusing on cranial sensory ganglia, highlighting specific aspects of their development and comparing it to that of trunk sensory ganglia.
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Affiliation(s)
- Simon Vermeiren
- ULB Neuroscience Institute, Université Libre de Bruxelles, Gosselies, Belgium
| | - Eric J Bellefroid
- ULB Neuroscience Institute, Université Libre de Bruxelles, Gosselies, Belgium
| | - Simon Desiderio
- Institute for Neurosciences of Montpellier, INSERM U1051, University of Montpellier, Montpellier, France
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8
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Kaur J, Singanamalla B, Suresh RG, Saini AG. Insensitivity to Pain, Self-mutilation, and Neuropathy Associated With PRDM12. Pediatr Neurol 2020; 110:95-96. [PMID: 32409124 DOI: 10.1016/j.pediatrneurol.2020.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/01/2020] [Accepted: 03/03/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Jasmine Kaur
- Senior Resident, Employee's State Insurance- Postgraduate Institute of Medical Science and Research, Basaidarpur, New Delhi, India
| | - Bhanudeep Singanamalla
- Senior Resident, Pediatric Neurology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh, India
| | - Ramprabhu Gopalan Suresh
- Junior Resident, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh, India
| | - Arushi Gahlot Saini
- Assistant Professor, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education & Research (PGIMER), Chandigarh, India.
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Abstract
The term mid-face toddler excoriation syndrome (MiTES) has been proposed to describe a rare condition that arises in infancy as is characterized by self-inflicted excoriations. It is considered to be a milder variant of hereditary sensory-autonomic neuropathy (HSAN) type VIII. We present an 8-year-old boy with lesions on the mid-face that were admittedly self-induced and associated with an abnormally high pain threshold. The diagnosis and management of MiTES is reviewed.
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Affiliation(s)
- Lucero Noguera-Morel
- Department of Dermatology, Hospital Universitario Infantil Niño Jesús, Madrid, Spain
| | | | - Minia Campos
- Department of Dermatology, Hospital Universitario Gregorio Marañón, Madrid, Spain
| | | | - Antonio Torrelo
- Department of Dermatology, Hospital Universitario Infantil Niño Jesús, Madrid, Spain
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10
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Inamadar AC, Vinay K, Olabi B, Sarveswaran N, Bishnoi A, Woods CG, Moss C. Extending the phenotype of midface toddler excoriation syndrome (MiTES): Five new cases in three families with PR domain containing protein 12 (PRDM12) mutations. J Am Acad Dermatol 2019; 81:1415-1417. [PMID: 31128170 DOI: 10.1016/j.jaad.2019.05.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/13/2019] [Accepted: 05/16/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Arun C Inamadar
- Department of Dermatology, Shri BM Patil Medical College & Hospital, BLDE (Deemed to be University), Bijapur, India
| | - Keshavmurthy Vinay
- Department of Dermatology, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Bayanne Olabi
- Department of Dermatology, Edinburgh Royal Infirmary, United Kingdom
| | | | - Anuradha Bishnoi
- Department of Dermatology, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Christopher G Woods
- Cambridge Institute for Medical Research, United Kingdom; Department of Medical Genetics, University of Cambridge, United Kingdom
| | - Celia Moss
- Department of Dermatology, Birmingham Children's Hospital, United Kingdom; College of Medical and Dental Sciences, University of Birmingham, United Kingdom.
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11
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Greenblatt DT, Mellerio JE. Itch and scratch: could pain be the catch? Br J Dermatol 2018; 179:1029. [DOI: 10.1111/bjd.17119] [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: 11/27/2022]
Affiliation(s)
- D. T. Greenblatt
- St John's Institute of Dermatology, Guy's and St Thomas’ NHS Foundation Trust; Westminster Bridge Road London SE1 7EH U.K
| | - J. E. Mellerio
- St John's Institute of Dermatology, Guy's and St Thomas’ NHS Foundation Trust; Westminster Bridge Road London SE1 7EH U.K
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12
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Narang T, Singh S. Response to: Midface toddler excoriation syndrome (MiTES) can be caused by autosomal recessive biallelic mutations in a gene for congenital insensitivity to pain, PRDM12. Br J Dermatol 2018; 180:431. [PMID: 30339713 DOI: 10.1111/bjd.17338] [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)
- T Narang
- Department of Dermatology, Venereology and Leprology, Chandigarh, 160012, India
| | - S Singh
- Department of Psychiatry Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Dharaniprasad G, Samantaray A, Hanumantha Rao M, Chandra A, Sarma PVGK. Association of G472A allele of membrane bound catechol-O-methyltransferase gene with chronic post-sternotomy pain. Gen Thorac Cardiovasc Surg 2018; 67:806-810. [PMID: 30073475 DOI: 10.1007/s11748-018-0981-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 05/30/2018] [Accepted: 07/30/2018] [Indexed: 12/17/2022]
Abstract
Chronic persistent surgical pain (CPSP) is a complex disease with strong genetic component. The studies on revealed association of mutations in membrane bound catechol-O-methyltransferase gene with CPSP were reported indifferent ethnic populations across the globe. We identify that one out of four patients who underwent sternotomy procedure showed CPSP even after 3 months of surgery. The Mb.COMT gene sequence analysis revealed of the four patients, three patients had no mutation in Mb.COMT gene, while in one patient exhibited G472A mutation. Interestingly, this patient showed CPSP even after 90 days of surgery. The magnitude of the CPSP was evaluated with pain questionnaires' at the end of 3 months after discharge from the hospital. In this study 25% (1/4) showed presence G472A allele correlating with CPSP. Further the study suggested that evaluation of G472A allele of Mb.COMT gene in the patients undergoing sternotomy for monitoring pain in pre and post-surgical events.
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Affiliation(s)
- Goduguchintha Dharaniprasad
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
| | - Aloka Samantaray
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India.
| | - Mangu Hanumantha Rao
- Department of Anesthesiology and Critical care, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
| | - Abha Chandra
- Department of Cardio Vascular and Thoracic Surgery, Sri Venkateswara Institute of Medical Sciences (SVIMS) University, Tirupati, Andhra Pradesh, India
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