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Jiang N, Vazquez Do Campo R, Kazamel M. Case report: A novel homozygous histidine triad nucleotide-binding protein 1 mutation featuring distal hereditary motor-predominant neuropathy with rimmed vacuoles. Front Neurol 2023; 14:1007051. [PMID: 36846110 PMCID: PMC9943687 DOI: 10.3389/fneur.2023.1007051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 01/17/2023] [Indexed: 02/08/2023] Open
Abstract
Introduction Recessive mutations in the gene encoding the histidine triad nucleotide-binding protein 1 (HINT1) are associated with axonal motor-predominant Charcot-Marie-Tooth (CMT) disease with neuromyotonia. A total of 24 HINT1 gene mutations have been reported so far. Some of these cases had mild to moderate elevations of creatinine kinase with no earlier reports of muscle biopsy findings in these cases. In this study, we describe a patient with axonal motor-predominant neuropathy and myopathy with rimmed vacuoles, likely due to a novel HINT1 gene mutation. Case report A 35-year-old African American man presented with insidious onset and progressive symmetric distal leg weakness followed by hand muscle atrophy and weakness since the age of 25. He had no muscle cramps or sensory complaints. His 38-year-old brother developed similar symptoms beginning in his early 30 s. On neurologic examination, the patient had distal weakness and atrophy in all limbs, claw hands, pes cavus, absent Achilles reflexes, and normal sensory examination. Electrodiagnostic studies revealed absent/reduced compound motor action potential amplitudes distally with normal sensory responses with no neuromyotonia. His sural nerve biopsy showed a chronic non-specific axonal neuropathy, and a biopsy of the tibialis anterior muscle demonstrated myopathic features and several muscle fibers harboring rimmed vacuoles without inflammation in addition to chronic denervation changes. A homozygous variant, p.I63N (c.188T > A), in the HINT1 gene was found in both brothers. Conclusion We describe a novel, likely pathogenic, HINT1 pI63N (c.188T > A) homozygous variant associated with hereditary axonal motor-predominant neuropathy without neuromyotonia in two African American brothers. The presence of rimmed vacuoles on muscle biopsy raises the possibility that mutations in the HINT1 gene may also cause myopathy.
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Affiliation(s)
- Nan Jiang
- Division of Neuromuscular Disease, Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rocio Vazquez Do Campo
- Division of Neuromuscular Disease, Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL, United States
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Kontogeorgiou Z, Voudommatis C, Kartanou C, Pandis D, Breza M, Zambelis T, Stefanis L, Panas M, Koutsis G, Karadima G. HINT1-related neuropathy in Greek patients with Charcot-Marie-Tooth disease. J Peripher Nerv Syst 2021; 26:444-448. [PMID: 34694653 DOI: 10.1111/jns.12473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/11/2021] [Accepted: 10/14/2021] [Indexed: 11/29/2022]
Abstract
Autosomal recessive axonal neuropathy with neuromyotonia (ARAN-NM) is a rare hereditary neuropathy within the Charcot-Marie-Tooth disease (CMT) spectrum, linked to mutations in the histidine triad nucleotide-binding protein 1 (HINT1) gene. HINT1-related neuropathy is particularly common in selected populations from Central and Eastern Europe but rare in Western European cohorts. It has not been investigated to date in the Greek population. We presently investigated the frequency of HINT1-neuropathy in a selected cohort of 42 Greek index patients with autosomal recessive or sporadic axonal hereditary neuropathy according to standard molecular genetics procedures. We identified 4 patients with biallelic mutations in HINT1, comprising 9.5% of all cases and 44.4% of cases also displaying neuromyotonia. The c.110G> C (p.Arg37Pro) HINT1 mutation was present in all cases (2 homozygous) and the c.250T> C (p.Cys84Arg) in 2 cases (compound heterozygous). HINT1-related neuropathy patients were characterized by early onset and neuromyotonia. Two patients had noteworthy clinical features, one case developing myoclonic epilepsy and the other displaying "adducted thumbs." We conclude that HINT1-related neuropathy is common in selected Greek patients with hereditary neuropathy within the CMT spectrum, in accordance with some, but not all, European populations.
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Affiliation(s)
- Zoi Kontogeorgiou
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Charalampos Voudommatis
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Chrisoula Kartanou
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Dionysis Pandis
- Clinical Neurophysiology Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Marianthi Breza
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Thomas Zambelis
- Clinical Neurophysiology Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Leonidas Stefanis
- 1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Marios Panas
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgios Koutsis
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Georgia Karadima
- Neurogenetics Unit, 1st Department of Neurology, School of Medicine, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece
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Shchagina OA, Milovidova TB, Murtazina AF, Rudenskaya GE, Nikitin SS, Dadali EL, Polyakov AV. HINT1 gene pathogenic variants: the most common cause of recessive hereditary motor and sensory neuropathies in Russian patients. Mol Biol Rep 2019; 47:1331-1337. [PMID: 31848916 DOI: 10.1007/s11033-019-05238-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 12/11/2019] [Indexed: 11/26/2022]
Abstract
Pathogenic variants in the HINT1 gene lead to hereditary axonopathy with neuromyotonia. However, many studies show that neuromyotonia may remain undiagnosed, while axonopathy is the major clinical finding. The most common cause of neuromyotonia and axonopathy, especially in patients of Slavic origin, is a c.110G>C (p.Arg37Pro) pathogenic variant in homozygous or compound heterozygous state. In this study, we analyzed a peripheral neuropathy caused by pathogenic variants in the HINT1 gene and evaluated its contribution to the hereditary neuropathy structure. The studied group included 1596 non-related families diagnosed with hereditary motor and sensory neuropathy (HMSN). The results show that HINT1 gene pathogenic variants make a significant contribution to the hereditary neuropathy epidemiology in Russian patients. They account for at least 1.9% of all HMSN cases and 9% of axonopathy cases. The most common HINT1 pathogenic variant in Russian patients is the c.110G>C (p.Arg37Pro) substitution. Its allelic frequency is 0.2% (95% CI 0.19-0.21%), carrier frequency is 1 in 250 people in Russian Federation, and the estimated disease incidence is 1 in 234,000 individuals. It was determined that the cause of this pathogenic variant's prevalence is the founder effect.
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Affiliation(s)
- O A Shchagina
- Laboratory of DNA Diagnostics, Laboratory of Molecular Genetic Diagnosis №1 of Research Centre for Medical Genetics, 1 Moskvorechie St., Moscow, Russia, 115522
| | - T B Milovidova
- Laboratory of DNA Diagnostics of Research Centre for Medical Genetics, 1 Moskvorechie St, Moscow, Russia, 115522
| | - A F Murtazina
- Research Centre for Medical Genetics, 1 Moskvorechie St., Moscow, Russia, 115522.
| | - G E Rudenskaya
- Scientific and Medical Department of Research Centre for Medical Genetics, 1 Moskvorechie St., Moscow, Russia, 115522
| | - S S Nikitin
- Association of Neuromuscular Disorders Specialists, Build. 2, 17 Krzhizhanovskogo St., Moscow, Russia, 117258
| | - E L Dadali
- Scientific and Medical Department of Research Centre for Medical Genetics, 1 Moskvorechie St., Moscow, Russia, 115522
| | - A V Polyakov
- Laboratory of DNA Diagnostics of Research Centre for Medical Genetics, 1 Moskvorechie St, Moscow, Russia, 115522
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Whole exome sequencing reveals a broader variant spectrum of Charcot-Marie-Tooth disease type 2. Neurogenetics 2019; 21:79-86. [PMID: 31832804 DOI: 10.1007/s10048-019-00591-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/12/2019] [Indexed: 12/21/2022]
Abstract
Charcot-Marie-Tooth disease type 2 (CMT2) is a clinically and genetically heterogeneous inherited neuropathy. Although new causative and disease-associated genes have been identified for CMT2 in recent years, molecular diagnoses are still lacking for a majority of patients. We here studied a cohort of 35 CMT2 patients of Chinese descent, using whole exome sequencing to investigate gene mutations and then explored relationships among genotypes, clinical features, and mitochondrial DNA levels in blood as assessed by droplet digital PCR. We identified pathogenic variants in 57% of CMT2 patients. The most common genetic causes in the cohort were MFN2 mutations. Two patients with typical CMT phenotype and neuromyotonia were detected to harbor compound heterozygous variations in the HINT1 gene. In conclusion, our work supports that the molecular diagnostic rate of CMT2 patients can be increased via whole exome sequencing, and our data suggest that assessment of possible HINT1 mutations should be undertaken for CMT2 patients with neuromyotonia.
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Meng L, Fu J, Lv H, Zhang W, Wang Z, Yuan Y. Novel mutations in HINT1 gene cause autosomal recessive axonal neuropathy with neuromyotonia in two cases of sensorimotor neuropathy and one case of motor neuropathy. Neuromuscul Disord 2018; 28:646-651. [PMID: 30001929 DOI: 10.1016/j.nmd.2018.05.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 05/03/2018] [Accepted: 05/09/2018] [Indexed: 12/16/2022]
Abstract
Autosomal recessive axonal neuropathy with neuromyotonia (ARANNM) is a rare disease caused by mutations of histidine triad nucleotide binding protein 1 (HINT1) gene. ARANNM has been reported mainly in European countries but little reported so far in China. We describe novel mutations of HINT1 in three Chinese patients with ARANNM from unrelated families. Patient 1 was a 14-year-old girl who presented with progressive distal weakness of upper limbs at two years of age. After that, she reported weakness of both feet, and difficulty in muscle relaxation after making a fist. Patient 2 was an 18-year-old boy, who presented with progressive distal weakness of all limbs with foot drop at the age of ten with loss of ambulation at age 15. Patient 3 was a 26-year-old man who had been afflicted with weakness and atrophy of distal lower limbs since the age of 16 complaining about muscle stiffness of the lower limbs when standing and walking, and contraction of finger flexion muscles when releasing a forced grip. Electrodiagnostic testing revealed an axonal motor or sensorimotor neuropathy with or without myokymic discharges. Sural biopsy showed no pathological changes in patient 1 and mild axonal neuropathies with demyelination in patients 2 and 3. Genetic analysis revealed HINT1 with novel compound heterozygous c.112T > C (p.C38R) and c.171G > C (p.K57N) mutations in patient 1, homozygous c.112T > C (p.C38R) mutation in patient 2, as well as compound heterozygous c.112T > C (p.C38R) and c.98T > C (p.F33S) mutations in patient 3. Our study, for the first time, confirms ARANNM in the Chinese population. These genetic findings can help expand the genotypic spectrum of HINT1 mutations.
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Affiliation(s)
- Lingchao Meng
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Jun Fu
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - He Lv
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Wei Zhang
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China
| | - Yun Yuan
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing 100034, China.
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HINT1 in Neuropsychiatric Diseases: A Potential Neuroplastic Mediator. Neural Plast 2017; 2017:5181925. [PMID: 29214080 PMCID: PMC5682914 DOI: 10.1155/2017/5181925] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/23/2017] [Accepted: 09/18/2017] [Indexed: 01/25/2023] Open
Abstract
Although many studies have investigated the functions of histidine triad nucleotide-binding protein 1 (HINT1), its roles in neurobiological processes remain to be fully elucidated. As a member of the histidine triad (HIT) enzyme superfamily, HINT1 is distributed in almost every organ and has both enzymatic and nonenzymatic activity. Accumulating clinical and preclinical evidence suggests that HINT1 may play an important role as a neuroplastic mediator in neuropsychiatric diseases, such as schizophrenia, inherited peripheral neuropathies, mood disorders, and drug addiction. Though our knowledge of HINT1 is limited, it is believed that further research on the neuropathological functions of HINT1 would eventually benefit patients with neuropsychiatric and even psychosomatic diseases.
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