1
|
Marelli C, Badiou S, Genestet S, Larrieu L, Damier P, Camu W, Planes M, Koenig M, Guissart C. Autosomal dominant SPG9: intrafamilial variability and onset during pregnancy. Neurol Sci 2020; 41:1931-1933. [PMID: 32221810 DOI: 10.1007/s10072-020-04341-5] [Citation(s) in RCA: 2] [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: 12/07/2019] [Accepted: 03/13/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION The ALDH18A1 gene, encoding delta-1-pyrroline-5-carboxylate synthase (P5CS), is responsible for an autosomal recessive disease with severe developmental delay; more recently, ALDH18A1 was found to be responsible for SPG9, an autosomal dominant (AD) spastic paraplegia. CASE REPORT We report a three-generation family with AD SPG9, initially suspected because of low citrulline on fasting plasma amino acid chromatography (AAC). Interestingly, in two patients, the spastic paraplegia appeared during pregnancy. One subject presented a severe childhood-onset form while another subject had a mild late-onset disease. CONCLUSION The description of this family is of particular interest: it highlights the possibility of transient or permanent aggravation of spastic paraplegia due to SPG9 during pregnancy, suggesting a direct link between neurological symptoms and amino acid defect in a period of higher requirements and the potential benefit of amino acid supplementation; it underscores the value of plasma citrulline on fasting plasma AAC as a biomarker for this disease; it shows the variable expression of the disease.
Collapse
Affiliation(s)
- C Marelli
- Department of Neurology, Expert Centre for Neurogenetic Diseases and Adult Mitochondrial and Metabolic Diseases, Gui de Chauliac University Hospital Montpellier, 80, Avenue A Fliche, 34295, Montpellier, France. .,Laboratoire de Génétique de Maladies Rares EA7402, Institut Universitaire de Recherche Clinique, Université de Montpellier, Montpellier, France. .,Inserm U1198 MMDN, Montpellier, France.
| | - S Badiou
- Biochemistry Laboratory, Lapeyronie Hospital, Montpellier, France.,PhyMedExp, INSERM, CNRS, CHU de Montpellier, Université de Montpellier, Montpellier, France
| | - S Genestet
- Hôpital de la Cavale Blanche, Service d'Explorations Fonctionnelles Neurologiques, CHRU de Brest, 29609, Brest, France
| | - L Larrieu
- Institut Universitaire de Recherche Clinique, Laboratoire de Génétique de Maladies Rares EA7402, Laboratoire de Génétique Moléculaire, University Hospital, Université de Montpellier, Montpellier, France
| | - P Damier
- Service de Neurologie, CHU de Nantes, Nantes, France
| | - W Camu
- Expert Center for Motor Neuron Diseases, Explorations Neurologiques, CHU and Université de Montpellier, Montpellier, France
| | - M Planes
- Service de Genetique Clinique, CHRU Morvan, 29609, Brest, France
| | - M Koenig
- Institut Universitaire de Recherche Clinique, Laboratoire de Génétique de Maladies Rares EA7402, Laboratoire de Génétique Moléculaire, University Hospital, Université de Montpellier, Montpellier, France
| | - C Guissart
- Institut Universitaire de Recherche Clinique, Laboratoire de Génétique de Maladies Rares EA7402, Laboratoire de Génétique Moléculaire, University Hospital, Université de Montpellier, Montpellier, France
| |
Collapse
|
2
|
Bouget C, Parmain G, Gilg O, Noblecourt T, Nusillard B, Paillet Y, Pernot C, Larrieu L, Gosselin F. Does a set-aside conservation strategy help the restoration of old-growth forest attributes and recolonization by saproxylic beetles? Anim Conserv 2014. [DOI: 10.1111/acv.12101] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. Bouget
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
| | - G. Parmain
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
- National Laboratory of Forest Entomology; National Forest Office (ONF); Quillan France
- Natural Patrimony Department; National Museum of Natural History; Paris France
| | - O. Gilg
- Réserves Naturelles de France; Quétigny France
| | - T. Noblecourt
- National Laboratory of Forest Entomology; National Forest Office (ONF); Quillan France
| | - B. Nusillard
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
| | - Y. Paillet
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
| | - C. Pernot
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
| | - L. Larrieu
- UMR 1201 Dynafor; INRA, INPT/ENSAT/EIPURPAN; Castanet-Tolosan France
- CNPF-IDF; Auzeville Tolosane France
| | - F. Gosselin
- ‘Forest ecosystems’ Research Unit; National Research Institute of Science and Technology for Environment and Agriculture (IRSTEA); Nogent-sur-Vernisson France
| |
Collapse
|
3
|
Abadie C, Blanchet C, Baux D, Larrieu L, Besnard T, Ravel P, Biboulet R, Hamel C, Malcolm S, Mondain M, Claustres M, Roux AF. Audiological findings in 100 USH2 patients. Clin Genet 2011; 82:433-8. [PMID: 21895633 DOI: 10.1111/j.1399-0004.2011.01772.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Bilateral sensorineural hearing loss (HL), classically described as mild to severe with a typically down-sloping audiometric configuration, is the earliest symptom occurring in Usher syndrome type II (USH2). Audiological findings were analyzed in a total of 100 USH2 patients (92 families) divided into three groups according to the gene involved: 88 USH2A, 10 GPR98 and 2 DFNB31 patients. A fine analysis of audiograms was performed (pure tone average, degree of severity, configuration). The median age of HL diagnosis was 5 years (range 8 months-31 years) although the median age at USH2 diagnosis was 34.5 (range 8-76). Moderate HL was predominant (76%) and a gently down-sloping configuration characterized most audiograms (66%). No statistically significant difference was found between USH2A and GPR98 patients but a tendency was clearly noted for more GPR98 patients to present with severe hearing loss. It is not possible to predict the mutated gene from audiograms.
Collapse
Affiliation(s)
- C Abadie
- CHU Montpellier, Laboratoire de Génétique Moléculaire, 641 Avenue du Doyen Gaston Giraud, Montpellier, France
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|