scholarly journals Expanding the Clinical and Mutational Spectrum of Recessive AEBP1-Related Classical-Like Ehlers-Danlos Syndrome

Genes ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 135 ◽  
Author(s):  
Marco Ritelli ◽  
Valeria Cinquina ◽  
Marina Venturini ◽  
Letizia Pezzaioli ◽  
Anna Formenti ◽  
...  
Keyword(s):  
Missense Variant ◽  
Causal Variant ◽  
Joint Hypermobility ◽  
Clinical Findings ◽  
Ehlers Danlos Syndrome ◽  
Pathogenic Variants ◽  
Fibrillar Collagens ◽  
Atrophic Scars ◽  
Minor Criteria ◽  
Danlos Syndrome

Ehlers-Danlos syndrome (EDS) comprises clinically heterogeneous connective tissue disorders with diverse molecular etiologies. The 2017 International Classification for EDS recognized 13 distinct subtypes caused by pathogenic variants in 19 genes mainly encoding fibrillar collagens and collagen-modifying or processing proteins. Recently, a new EDS subtype, i.e., classical-like EDS type 2, was defined after the identification, in six patients with clinical findings reminiscent of EDS, of recessive alterations in AEBP1, which encodes the aortic carboxypeptidase–like protein associating with collagens in the extracellular matrix. Herein, we report on a 53-year-old patient, born from healthy second-cousins, who fitted the diagnostic criteria for classical EDS (cEDS) for the presence of hyperextensible skin with multiple atrophic scars, generalized joint hypermobility, and other minor criteria. Molecular analyses of cEDS genes did not identify any causal variant. Therefore, AEBP1 sequencing was performed that revealed homozygosity for the rare c.1925T>C p.(Leu642Pro) variant classified as likely pathogenetic (class 4) according to the American College of Medical Genetics and Genomics (ACMG) guidelines. The comparison of the patient’s features with those of the other patients reported up to now and the identification of the first missense variant likely associated with the condition offer future perspectives for EDS nosology and research in this field.

scholarly journals A Heterozygous Missense Variant in the COL5A2 in Holstein Cattle Resembling the Classical Ehlers–Danlos Syndrome

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2002
Author(s):  
Joana G. P. Jacinto ◽  
Irene M. Häfliger ◽  
Inês M. B. Veiga ◽  
Anna Letko ◽  
Cinzia Benazzi ◽  
...  
Keyword(s):  
Clinical Investigation ◽  
Missense Variant ◽  
Causal Variant ◽  
Connective Tissue Disorder ◽  
Joint Hypermobility ◽  
Large Animal Model ◽  
Large Animal ◽  
Ehlers Danlos Syndrome ◽  
Skin Fragility ◽  
Danlos Syndrome

Classical Ehlers–Danlos syndrome (cEDS) is a heritable connective tissue disorder characterized by variable degrees of skin hyperextensibility and fragility, atrophic scarring, and generalized joint hypermobility. The purpose of this study was to characterize the clinicopathological phenotype of a cEDS-affected Holstein calf and to identify the causative genetic variant associated with the disorder by whole-genome sequencing (WGS). A 3-day-old female Holstein calf was referred because of easily induced skin detachment and hyperextensibility in the neck. A complete clinical investigation was performed in the calf, dam, and maternal-grandmother. The calf and dam showed hyperextensibility of the neck skin and atrophic scarring; additionally, the calf presented skin fragility. Moreover, the histopathology of biopsies from the calf and its dam showed that the collagen bundles in affected skin areas were wavy, short, thin, and surrounded by edema and moderate to severe acute hemorrhages. Genetic analysis revealed a private heterozygous missense variant in COL5A2 (c.2366G>T; p.Gly789Val) that was present only in the calf and dam. This confirmed the diagnosis of cEDS and represents the first report of a causal variant for cEDS in cattle and the first COL5A2-related large animal model.

scholarly journals REHABILITASI MEDIK PADA SINDROM EHLERS-DANLOS

2014 ◽  
Vol 6 (2) ◽  
Author(s):  
Ivan A. Chandra ◽  
Engeline Angliadi
Keyword(s):  
Daily Living ◽  
Weight Bearing ◽  
Joint Hypermobility ◽  
Clinical Findings ◽  
Joint Stability ◽  
Connective Tissue Disorders ◽  
Ehlers Danlos Syndrome ◽  
Dna Test ◽  
Comprehensive Rehabilitation ◽  
Danlos Syndrome

Abstract: Ehlers-Danlos syndrome is a group of inherited connective tissue disorders that manifests as hypermobility joint, hyperextensibility of the skin, and tissue fragility. There are 6 variants of this syndrome as follows: hypermobility, classic, vascular, kyphoscoliosis, athroclasia, and dermatosparaxis. The clinical manifestation of Ehlers-Danlos syndrome is often related to joint and skin. However, it rarely manifests as fragility or rupture of artery, scoliosis, and mitral valve disorder. The diagnosis of Ehlers-Danlos syndrome is based on clinical findings, family history with this syndrome, and additional tests inter alia DNA test. The management of Ehlers-Danlos syndrome could be medication, surgery, and rehabilitation. This rehabilitation is focused on increasing the joint stability, prohibiting for excessive burden to weight bearing joints, and using modified device to support activites of daily living without worsening the symptoms as well as supporting the psychological and medical social aspects of the patient. Keywords: Ehlers-Danlos syndrome, joint hypermobility, comprehensive rehabilitation   Abstrak: Sindrom Ehlers-Danlos (SED) adalah sekelompok gangguan pada jaringan penyambung yang bersifat diturunkan dan bermanifestasi sebagai hipermobilitas sendi, hiperekstensibilitas kulit, dan kerapuhan jaringan. Terdapat 6 jenis SED yaitu: hipermobilitas, klasik, vaskuler, kifoskoliosis, artrokalasia, dan dermatosparaksis. Manifestasi klinis SED sering berkaitan dengan sendi dan kulit. Manifestasi lain yang lebih jarang ditemukan antara lain kerapuhan atau ruptur pembuluh darah arteri, skoliosis, serta gangguan katup mitral. Diagnosis SED ditegakkan berdasarkan penemuan klinis, riwayat keluarga dengan SED, serta pemeriksaan penunjang antara lain tes DNA. Penanganan SED terdiri dari medikasi, operasi, dan rehabilitasi. Penanganan rehabilitasi difokuskan pada peningkatan stabilitas sendi, pencegahan beban berlebih pada sendi yang weight bearing, serta penggunaan modifikasi alat untuk membantu aktifitas sehari-hari tanpa memperberat gejala. Selain itu, rehabilitasi medik juga berperan penting terhadap aspek psikologik maupun sosial medik pasien SED. Kata kunci: sindroma Ehlers-Danlos, hipermobilitas sendi, rehabilitasi komprehensif

scholarly journals Clinical and molecular features of 66 patients with musculocontractural Ehlers−Danlos syndrome caused by pathogenic variants in CHST14 (mcEDS-CHST14)

2021 ◽  
pp. jmedgenet-2020-107623
Author(s):  
Mari Minatogawa ◽  
Ai Unzaki ◽  
Hiroko Morisaki ◽  
Delfien Syx ◽  
Tohru Sonoda ◽  
...  
Keyword(s):  
Collaborative Study ◽  
Joint Hypermobility ◽  
Loss Of Function ◽  
Multisystem Disorder ◽  
Ehlers Danlos Syndrome ◽  
Molecular Features ◽  
Pathogenic Variants ◽  
International Collaborations ◽  
Delayed Closure ◽  
Danlos Syndrome

BackgroundMusculocontractural Ehlers−Danlos syndrome is caused by biallelic loss-of-function variants in CHST14 (mcEDS-CHST14) or DSE (mcEDS-DSE). Although 48 patients in 33 families with mcEDS-CHST14 have been reported, the spectrum of pathogenic variants, accurate prevalence of various manifestations and detailed natural history have not been systematically investigated.MethodsWe collected detailed and comprehensive clinical and molecular information regarding previously reported and newly identified patients with mcEDS-CHST14 through international collaborations.ResultsSixty-six patients in 48 families (33 males/females; 0–59 years), including 18 newly reported patients, were evaluated. Japanese was the predominant ethnicity (27 families), associated with three recurrent variants. No apparent genotype–phenotype correlation was noted. Specific craniofacial (large fontanelle with delayed closure, downslanting palpebral fissures and hypertelorism), skeletal (characteristic finger morphologies, joint hypermobility, multiple congenital contractures, progressive talipes deformities and recurrent joint dislocation), cutaneous (hyperextensibility, fine/acrogeria-like/wrinkling palmar creases and bruisability) and ocular (refractive errors) features were observed in most patients (>90%). Large subcutaneous haematomas, constipation, cryptorchidism, hypotonia and motor developmental delay were also common (>80%). Median ages at the initial episode of dislocation or large subcutaneous haematoma were both 6 years. Nine patients died; their median age was 12 years. Several features, including joint and skin characteristics (hypermobility/extensibility and fragility), were significantly more frequent in patients with mcEDS-CHST14 than in eight reported patients with mcEDS-DSE.ConclusionThis first international collaborative study of mcEDS-CHST14 demonstrated that the subtype represents a multisystem disorder with unique set of clinical phenotypes consisting of multiple malformations and progressive fragility-related manifestations; these require lifelong, multidisciplinary healthcare approaches.

scholarly journals Ehlers-Danlos Syndrome, Hypermobility Type, Is Linked to Chromosome 8p22-8p21.1 in an Extended Belgian Family

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Delfien Syx ◽  
Sofie Symoens ◽  
Wouter Steyaert ◽  
Anne De Paepe ◽  
Paul J. Coucke ◽  
...  
Keyword(s):  
Rare Variants ◽  
Missense Variant ◽  
Joint Hypermobility ◽  
Joint Hypermobility Syndrome ◽  
Ehlers Danlos Syndrome ◽  
Genome Wide ◽  
Whole Exome ◽  
A Genome ◽  
Hereditary Conditions ◽  
Danlos Syndrome

Joint hypermobility is a common, mostly benign, finding in the general population. In a subset of individuals, however, it causes a range of clinical problems, mainly affecting the musculoskeletal system. Joint hypermobility often appears as a familial trait and is shared by several heritable connective tissue disorders, including the hypermobility subtype of the Ehlers-Danlos syndrome (EDS-HT) or benign joint hypermobility syndrome (BJHS). These hereditary conditions provide unique models for the study of the genetic basis of joint hypermobility. Nevertheless, these studies are largely hampered by the great variability in clinical presentation and the often vague mode of inheritance in many families. Here, we performed a genome-wide linkage scan in a unique three-generation family with an autosomal dominant EDS-HT phenotype and identified a linkage interval on chromosome 8p22-8p21.1, with a maximum two-point LOD score of 4.73. Subsequent whole exome sequencing revealed the presence of a unique missense variant in theLZTS1gene, located within the candidate region. Subsequent analysis of 230 EDS-HT/BJHS patients resulted in the identification of three additional rare variants. This is the first reported genome-wide linkage analysis in an EDS-HT family, thereby providing an opportunity to identify a new disease gene for this condition.

scholarly journals Diagnosis of vascular Ehlers-Danlos syndrome in Italy: Clinical findings and novel COL3A1 mutations

2011 ◽  
Vol 64 (3) ◽  
pp. 237-240 ◽  
Author(s):  
Bruno Drera ◽  
Nicoletta Zoppi ◽  
Marco Ritelli ◽  
Sergio Barlati ◽  
Marina Colombi ◽  
...  
Keyword(s):  
Clinical Findings ◽  
Ehlers Danlos Syndrome ◽  
Danlos Syndrome

scholarly journals The first case report of Kyphoscoliotic Ehlers-Danlos syndrome of chinese origin with a novel PLOD1 gene mutation

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaolin Ni ◽  
Chenxi Jin ◽  
Yan Jiang ◽  
Ou Wang ◽  
Mei Li ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Clinical Manifestations ◽  
Joint Hypermobility ◽  
Minor Trauma ◽  
X Rays ◽  
Ehlers Danlos Syndrome ◽  
Chinese Origin ◽  
First Case ◽  
Blue Sclerae ◽  
Danlos Syndrome

Abstract Background Kyphoscoliotic Ehlers-Danlos syndrome (kEDS) is a rare autosomal recessive connective tissue disorder characterized by progressive kyphoscoliosis, congenital muscular hypotonia, marked joint hypermobility, and severe skin hyperextensibility and fragility. Deficiency of lysyl hydroxylase 1 (LH1) due to mutations of PLOD1 (procollagen-lysine, 2-oxoglutarate 5-dioxygenase 1) gene has been identified as the pathogenic cause of kEDS (kEDS-PLOD1). Up to now, kEDS-PLOD1 has not been reported among Chinese population. Case presentation A 17-year-old Chinese male patient presenting with hypotonia, joint hypermobility and scoliosis was referred to our hospital. After birth, he was found to have severe hypotonia leading to delayed motor development. Subsequently, joint hypermobility, kyphoscoliosis and amblyopia were found. Inguinal hernia was found at age 5 years and closed by surgery. At the same time, he presented with hyperextensible and bruisable velvety skin with widened atrophic scarring after minor trauma. Dislocation of elbow joint was noted at age of 6 years. Orthopedic surgery for correction of kyphoscoliosis was performed at age 10 years. His family history was unremarkable. Physical examination revealed elevated blood pressure. Slight facial dysmorphologies including high palate, epicanthal folds, and down-slanting palpebral fissures were found. He also had blue sclerae with normal hearing. X-rays revealed severe degree of scoliosis and osteopenia. The Echocardiography findings were normal. Laboratory examination revealed a slightly elevated bone turnover. Based on the clinical manifestations presented by our patient, kEDS was suspected. Genetic analysis revealed a novel homozygous missense mutation of PLOD1 (c.1697 G > A, p.C566Y), confirming the diagnosis of kEDS-PLOD1. The patient was treated with alfacalcidol and nifedipine. Improved physical strength and normal blood pressure were reported after 12-month follow-up. Conclusions This is the first case of kEDS-PLOD1 of Chinese origin. We identified one novel mutation of PLOD1, extending the mutation spectrum of PLOD1. Diagnosis of kEDS-PLOD1 should be considered in patients with congenital hypotonia, progressive kyphoscoliosis, joint hypermobility, and skin hyperextensibility and confirmed by mutation analysis of PLOD1.

scholarly journals Ehlers-Danlos syndrome presenting with primary nocturnal enuresis

2020 ◽  
Vol 13 (2) ◽  
pp. e231977
Author(s):  
Margarida Cunha ◽  
Mafalda Matias ◽  
Inês Marques
Keyword(s):  
Genetic Testing ◽  
Nocturnal Enuresis ◽  
Bladder Dysfunction ◽  
Connective Tissue Disorder ◽  
Joint Hypermobility ◽  
Urinary Urgency ◽  
Beighton Score ◽  
Ehlers Danlos Syndrome ◽  
Primary Nocturnal Enuresis ◽  
Danlos Syndrome

Ehlers-Danlos syndrome (EDS), hypermobility type, is probably the most common EDS type, as well as the most common heritable connective tissue disorder. Bladder dysfunction is a rare clinical manifestation of EDS and manifests itself as primary nocturnal enuresis. We present a 10-year-old boy referred to the paediatrics nephrology consultation due to primary nocturnal enuresis and day time symptoms of urinary urgency. During the appointment, a tendency to joint hypermobility was noted. On evaluation the skin was hyperextensible and the Beighton score was positive. The genetic testing revealed a variant of the COL5A1 gene not yet described in the literature.

scholarly journals Increased augmentation index in patients with Ehlers-Danlos syndrome

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Maurice Roeder ◽  
Sira Thiel ◽  
Frederic Baumann ◽  
Noriane A. Sievi ◽  
Marianne Rohrbach ◽  
...  
Keyword(s):  
Arterial Stiffness ◽  
Augmentation Index ◽  
Positive Association ◽  
Joint Hypermobility ◽  
Applanation Tonometry ◽  
Classical Type ◽  
Healthy Controls ◽  
Ehlers Danlos Syndrome ◽  
Vascular Type ◽  
Danlos Syndrome

Abstract Background Ehlers-Danlos Syndrome (EDS) comprises a heterogeneous group of diseases characterized by joint hypermobility, connective tissue friability, and vascular fragility. Reliable prognostic factors predicting vascular disease progression (e.g. arterial aneurysms, dissections, and ruptures) in EDS patients are still missing. Recently, applanation tonometry derived augmentation index (AIx), an indirect marker of arterial stiffness, has shown to be positively associated with progression of aortic disease in Marfan syndrome. In this study, we assessed aortic AIx in patients with EDS and matched healthy controls. Methods We performed noninvasive applanation tonometry in 61 adults with EDS (43 women and 18 men aged 39.3 ± 14.6 years) and 61 age-, gender-, height-, and weight-matched healthy controls. Radial artery pulse waveforms were recorded and analyzed using the SphygmoCor System (AtCor Medical, Sydney, NSW, Australia). Calculated AIx was adjusted to a heart rate of 75/min. Groups were compared and association between AIx and EDS was determined by univariate and multivariate regression analysis. Results EDS patients were categorized in classical type EDS (34%), hypermobile type EDS (43%), vascular type EDS (5%), or remained unassignable (18%) due to overlapping features. EDS patients showed a significantly increased aortic AIx compared to healthy controls (22.8% ± 10.1 vs 14.8% ± 14.0, p < 0.001). EDS showed a positive association with AIx; independent of age, sex, height, blood pressure, medication, and pack years of smoking. Conclusions Patients with EDS showed elevated AIx, indicating increased arterial stiffness when compared to healthy controls. Further investigations are needed in order to assess the prognostic value of increased AIx for cardiovascular outcomes in patients with EDS.

Low tendon stiffness and abnormal ultrastructure distinguish classic Ehlers‐Danlos syndrome from benign joint hypermobility syndrome in patients

2014 ◽  
Vol 28 (11) ◽  
pp. 4668-4676 ◽  
Author(s):  
Rie Harboe Nielsen ◽  
Christian Couppé ◽  
Jacob Kildevang Jensen ◽  
Morten Raun Olsen ◽  
Katja Maria Heinemeier ◽  
...  
Keyword(s):  
Joint Hypermobility ◽  
Hypermobility Syndrome ◽  
Joint Hypermobility Syndrome ◽  
Ehlers Danlos Syndrome ◽  
Tendon Stiffness ◽  
Benign Joint Hypermobility Syndrome ◽  
Danlos Syndrome
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