scholarly journals Mucopolysaccharidosis-Plus Syndrome

2020 ◽  
Vol 21 (2) ◽  
pp. 421
Author(s):  
Filipp Vasilev ◽  
Aitalina Sukhomyasova ◽  
Takanobu Otomo
Keyword(s):  
Skin Fibroblast ◽  
Autosomal Recessive ◽  
Heart Defects ◽  
Molecular Genetic ◽  
Symptomatic Treatment ◽  
Molecular Genetic Testing ◽  
Multisystem Disorder ◽  
Specific Therapy ◽  
Yakut Population ◽  
Hematopoietic Disorders

Previously, we reported a novel disease of impaired glycosaminoglycans (GAGs) metabolism without deficiency of known lysosomal enzymes—mucopolysaccharidosis-plus syndrome (MPSPS). MPSPS, whose pathophysiology is not elucidated, is an autosomal recessive multisystem disorder caused by a specific mutation p.R498W in the VPS33A gene. VPS33A functions in endocytic and autophagic pathways, but p.R498W mutation did not affect both of these pathways in the patient’s skin fibroblast. Nineteen patients with MPSPS have been identified: seventeen patients were found among the Yakut population (Russia) and two patients from Turkey. Clinical features of MPSPS patients are similar to conventional mucopolysaccharidoses (MPS). In addition to typical symptoms for conventional MPS, MPSPS patients developed other features such as congenital heart defects, renal and hematopoietic disorders. Diagnosis generally requires evidence of clinical picture similar to MPS and molecular genetic testing. Disease is very severe, prognosis is unfavorable and most of patients died at age of 10–20 months. Currently there is no specific therapy for this disease and clinical management is limited to supportive and symptomatic treatment.

scholarly journals Multimorbidity in Pediatric Dermatology: Clinical Case

2020 ◽  
Vol 19 (6) ◽  
pp. 483-489
Author(s):  
Nikolay N. Murashkin ◽  
Alexander I. Materikin ◽  
Eduard T. Ambarchian ◽  
Roman V. Epishev ◽  
Leonid A. Opryatin ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Autosomal Recessive ◽  
Clinical Case ◽  
Correct Diagnosis ◽  
Molecular Genetic ◽  
Final Diagnosis ◽  
Molecular Genetic Testing ◽  
Pediatric Dermatology ◽  
Dominant Type ◽  
Recessive Type

Background. Nowadays, dermatoses with mixed clinical picture and resistant to classical management become more common. The presence of various genetic disorders typical for most chronic dermatoses may indicate possible combination of several nosologies.Clinical Case Description. The article presents the clinical case of multimorbid condition in 10 years old patient who has nucleotide variants in CARD14 and EXPH5 genes. Mutations in CARD14 gene are typical for patients with type 2 psoriasis and pityriasis rubra pilaris (autosomal dominant type), while mutations in EXPH5 gene are typical for patients with non-specific epidermolysis bullosa (autosomal recessive type). Mutation in the TGM1 gene that is described in patients with congenital ichthyosis (autosomal recessive type), pathogenic mutations in KRT74 gene typical for ectodermal dysplasia, hypotrichosis and uncombable hair syndrome, and mutations in the KRT86 gene typical for monilethrix were also revealed. Medical history taking and histological examination as well as clinical data evaluating are crucial for correct diagnosis. They allow to understand the absence of the such manifestations in relatives and reveal various pathological processes in the epidermis. Molecular genetic testing with new generation sequencing (NGS) helps to finally establish the diagnosis and determine the further tactics for patient management.Conclusion. Multidisciplinary approach and use of high-technology methods of examination and treatment (such as molecular genetic testing and biological therapy) are required for final diagnosis in severe forms of chronic dermatosis resistant to treatment and for decision on correct tactics for the further management of such patients.

A Case of Dubin-Johnson Syndrome Presenting as Neonatal Cholestasis With Paucity of Interlobular Bile Ducts

2021 ◽  
pp. 109352662098057
Author(s):  
Kara L Chan ◽  
Natasha Varughese ◽  
Patricia M Jones ◽  
David L Zwick ◽  
Veena Rajaram ◽  
...  
Keyword(s):  
Bile Ducts ◽  
Autosomal Recessive ◽  
Molecular Genetic ◽  
Autosomal Recessive Disorder ◽  
Neonatal Cholestasis ◽  
Molecular Genetic Testing ◽  
Biopsy Tissue ◽  
Johnson Syndrome ◽  
Clinicopathologic Findings ◽  
Conjugated Hyperbilirubinemia

Dubin-Johnson syndrome (DJS) is a rare autosomal recessive disorder that typically manifests in young adulthood as jaundice with conjugated hyperbilirubinemia. We report a case presenting as neonatal cholestasis with the unexpected histologic finding of paucity of interlobular bile ducts, a feature that is not typically seen in DJS. The diagnosis was confirmed by absent canalicular multidrug-resistance-associated protein 2 (MRP2) immunohistochemical staining on liver biopsy tissue and molecular genetic testing that demonstrated heterozygous mutations in the ATP-Binding Cassette Subfamily C Member 2 ( ABCC2) gene, including a novel missense mutation. This report describes a case of DJS with atypical clinicopathologic findings and suggests that DJS should be considered in patients with neonatal cholestasis and bile duct paucity.

scholarly journals First case of COVID-19 infection in a adult patient with Ellis-van Creveld Syndrome

2021 ◽  
Author(s):  
Isabelle Piazza ◽  
Paolo Ferrero
Keyword(s):  
Autosomal Recessive ◽  
Ectodermal Dysplasia ◽  
Heart Defects ◽  
Autosomal Recessive Disorder ◽  
Endocardial Cushions ◽  
Specific Therapy ◽  
Case Presentation ◽  
Septal Defects ◽  
First Case ◽  
Ellis Van Creveld Syndrome

Abstract Background: Ellis-van Creveld syndrome (EVC) is a rare autosomal recessive disorder, the features of the syndrome are: chondral and ectodermal dysplasia characterized by short ribs, polydactyly, growth retardation resulting in dwarfism, teeth and craniofacial abnormalities and heart defects (mostly endocardial cushions and atrial septal defects). Case presentation: We describe the first case of COVID-19 infection in a 24-years-old girl, diagnosed with EVC syndrome. The patient suffered only from a mild illness, she remained stable with normal saturation without need of neither respiratory support nor specific therapy and she was rapidly discharged.Conclusions: This case appraises the pathophiosiologic interplay between different specific prognostic variable in a syndromic patient with congenital heart disease and COVID-19.

Orpha disease – FRASER syndrome (ORPHA:2052) in children: phenotype and genotype characteristics

2021 ◽  
Vol 25 (3) ◽  
pp. 28-35
Author(s):  
J. G. Leviashvili ◽  
N. D. Savenkova
Keyword(s):  
Rare Disease ◽  
Respiratory System ◽  
Umbilical Hernia ◽  
Autosomal Recessive ◽  
Molecular Genetic ◽  
Genetic Diagnosis ◽  
Molecular Genetic Testing ◽  
Fraser Syndrome ◽  
Recessive Type ◽  
Icd 10

Fraser syndrome (OMIM # 219000; ORPHA: 2052; ICD-10: Q87.0) is a rare, disease with an autosomal recessive type of inheritance is characterized by abnormalities in the development of the eyes, kidneys, larynx, ears, and bone systems (cryptophthalmos, syndactyly, abnormalities of the kidneys, urogenital tract, and respiratory system). The article presents current literature data on the phenotypic and genotypic features of Fraser syndrome, the management of patients with new opportunities for genetic diagnosis and treatment. The syndrome, described by D. Fraser in 1962, is caused by mutations in the FRAS1, FREM2, GRIP genes. The diagnosis of the Fraser syndrome phenotype is established in the presence of the main criteria (cryptophthalmos, syndactyly, abnormalities of the urinary and respiratory system, genitals, family history indicating a closely related marriage) and secondary (congenital malformations of the nose and ears, skull ossification defects, anorectal abnormalities, umbilical hernia, etc.). Molecular genetic testing proves a rare disease, requires genetic counseling. The management of patients is carried out jointly by an ophthalmologist, an otolaryngologist, an audiologist, a nephrologist, a urologist, a maxillofacial surgeon and other specialists.

A novel keratin 10 gene mutation causing epidermolytic hyperkeratosis (bullous congenital ichthyosiform erythroderma) in a term neonate

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Satyaranjan Pegu ◽  
Jaya. P. Bodani ◽  
Edmond G. Lemire ◽  
Karen I. Holfeld
Keyword(s):  
Genetic Testing ◽  
Autosomal Recessive ◽  
Autosomal Dominant ◽  
Molecular Genetic ◽  
Autosomal Recessive Inheritance ◽  
Skin Condition ◽  
Molecular Genetic Testing ◽  
Epidermolytic Hyperkeratosis ◽  
Autosomal Dominant Fashion ◽  
Congenital Ichthyosiform Erythroderma

Abstract Epidermolytic hyperkeratosis (EHK) is a rare skin condition characterized by erythroderma and blistering at birth, leading to generalized hyperkeratosis of varying severity in adulthood. EHK is frequently mistaken for staphylococcal scalded skin syndrome (SSSS) or epidermolysis bullosa. EHK is usually inherited in an autosomal dominant fashion, but very rare autosomal recessive families have been reported. Molecular genetic testing in this patient identified a novel homozygous keratin-10 gene (KRT10) mutation consistent with autosomal recessive inheritance. Furthermore, diagnosis was achieved by molecular genetic testing circumventing the need to perform a skin biopsy.

scholarly journals Prenatal Sonographic Features of CHARGE Syndrome

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 415
Author(s):  
Kuntharee Traisrisilp ◽  
Wisit Chankhunaphas ◽  
Rekwan Sittiwangkul ◽  
Chureerat Phokaew ◽  
Vorasuk Shotelersuk ◽  
...  
Keyword(s):  
De Novo ◽  
Heart Defects ◽  
Molecular Genetic ◽  
Choanal Atresia ◽  
Charge Syndrome ◽  
Acoustic Stimulation ◽  
Genetic Mutation ◽  
Suspected Case ◽  
Autosomal Dominant Disorder ◽  
Canal Stenosis

CHARGE syndrome is a rare autosomal dominant disorder, associated with coloboma (C), heart defects (H), choanal atresia (A), retardation of growth and/or central nervous system (R), genitourinary anomalies (G) and ear abnormalities (E). Prenatal diagnosis of the syndrome is very rare but may be suspected when a combination of such abnormalities is identified. We describe a prenatally suspected case of CHARGE syndrome due to unique findings of cardiac defects (DORV) in combination with minor clues, including a structurally malformed ear with persistent non-response to an acoustic stimulation (which has never been prenatally described elsewhere), renal malrotation and growth restriction. Postnatal diagnosis was made based on confirmation of the prenatal findings and additional specific findings of bilateral coloboma, choanal atresia and ear canal stenosis. Finally, molecular genetic testing by whole exome sequencing of the neonate and her parents revealed a novel de novo heterozygous frameshift c.3506_3509dup variant in the CHD7 gene, confirming the clinical diagnosis of CHARGE syndrome. In conclusion, we describe unique prenatal features of CHARGE syndrome. Educationally, this is one of the rare examples of CHARGE syndrome, comprising all of the six specific anomalies as originally described; it is also supported by the identification of a specific genetic mutation. The identified genetic variant has never been previously reported, thereby expanding the mutational spectrum of CHD7. Finally, this case can inspire prenatal sonographers to increase awareness of subtle or minor abnormalities as genetic sonomarkers.

scholarly journals Diagnosing Paraproteinemic Keratopathy: A Case Report

2021 ◽  
pp. 337-343
Author(s):  
Eugenie Mok ◽  
Ka Wai Kam ◽  
Anthony J. Aldave ◽  
Alvin L. Young
Keyword(s):  
Optical Coherence Tomography ◽  
Genetic Testing ◽  
Serum Protein ◽  
Molecular Genetic ◽  
Anterior Segment ◽  
Protein Electrophoresis ◽  
Serum Protein Electrophoresis ◽  
Optical Coherence ◽  
Molecular Genetic Testing ◽  
Corneal Opacities

A 65-year-old man presented with bilateral, painless, progressive blurring of vision over 9 years. Slit-lamp examination revealed bilateral subepithelial corneal opacities in clusters located at the mid-periphery. Anterior segment optical coherence tomography, in vivo confocal microscopy (IVCM), serum protein electrophoresis, and molecular genetic testing were performed to evaluate the cause of corneal opacities. Anterior segment optical coherence tomography revealed a band-like, hyperreflective lesion in the Bowman layer and anterior stroma of both corneas. IVCM revealed hyperreflective deposits in the epithelium, anterior stroma, and endothelium. Serum protein electrophoresis identified the presence of paraproteins (immunoglobulin kappa), and molecular genetic testing revealed absence of mutations in the transforming growth factor beta-induced gene (<i>TGFBI</i>) and collagen type XVII alpha 1 gene (<i>COL17A1</i>). The ocular diagnosis of paraproteinemic keratopathy eventually led to a systemic diagnosis of monoclonal gammopathy of undetermined significance by our hematologist/oncologist. Paraproteinemic keratopathy is a rare differential diagnosis in patients with bilateral corneal opacities and therefore may be misdiagnosed as corneal dystrophy or neglected as scars. In patients with bilateral corneal opacities of unknown cause, serological examination, adjunct anterior segment imaging, and molecular genetic testing play a role in establishing the diagnosis.

Sign in / Sign up

Export Citation Format

Share Document