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Lu Y, Chen Y, Huang J, Jiang Z, Ge Y, Yao R, Zhang J, Geng S, Chen F, Jin Q, Chen G, Yang D. Advances of NOTCH2NLC Repeat Expansions and Associated Diseases: A Bibliometric and Meta-analysis. Mol Neurobiol 2024:10.1007/s12035-024-04193-6. [PMID: 38709391 DOI: 10.1007/s12035-024-04193-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/19/2024] [Indexed: 05/07/2024]
Abstract
The unclear pathogenic mechanisms of neurodegenerative disorders stemming from NOTCH2NLC GGC repeat expansions drive focused research. Thus, a bibliometric and meta-analysis was conducted to uncover research trends and positivity rates in NOTCH2NLC. We conducted systematic searches in the Web of Science, PubMed, Embase, and Scopus databases for studies related to NOTCH2NLC up until August 2, 2023. Information regarding countries, institutions, authors, journals, and keywords of studies included in the Web of Science was analyzed and visualized. The positivity rates of NOTCH2NLC GGC repeat expansions across all screened patients and patients' families were pooled under the random-effects model. Publication bias and its impact were examined using funnel plots, Egger's linear regression, and trim-and-fill method. The bibliometric analysis, revealing pronounced publication growth, comprised 119 studies, which came from China and Japan particularly. "Neuronal intranuclear inclusion disease" emerged as a frequently used keyword. The meta-analysis comprised 36 studies, indicating global positivity rates of 1.79% (95% CI, 0.75-3.17) for all patients and 2.00% (95% CI, 0.26-4.78) for patients' families. Subgroup analyses based on region and phenotype suggested the highest NOTCH2NLC positivity rates in Taiwan population (5.42%, 95% CI 0.08-16.89) and in leukoencephalopathy-dominant patients (8.25%, 95% CI, 3.01-15.60). Sensitivity analysis affirmed the robustness of results. In conclusion, NOTCH2NLC GGC repeat expansions exhibit rare globally, primarily in East Asia, and leukoencephalopathy-dominant patients, emphasizing regional and phenotypic distinctions. Emerging focal points in NOTCH2NLC researches underscore the need for collaborative exploration.
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Affiliation(s)
- Yangguang Lu
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yiqun Chen
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Jiaqi Huang
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Zihan Jiang
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yaoying Ge
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Ruotong Yao
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Jinxiu Zhang
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Shangze Geng
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Feng Chen
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Qiaoqiao Jin
- The First School of Medicine, School of Information and Engineering, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Guangyong Chen
- Department of Neurology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Dehao Yang
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
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Yu D, Li J, Tai H, Ma J, Zhang Z, Tang W. Neuronal intranuclear inclusion disease misdiagnosed as Parkinson's disease: a case report. J Int Med Res 2024; 52:3000605241233159. [PMID: 38436278 PMCID: PMC10913512 DOI: 10.1177/03000605241233159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024] Open
Abstract
Neuronal intranuclear inclusion disease (NIID) is a rare progressive neurodegenerative disease that mainly manifests as dementia, muscle weakness, sensory disturbances, and autonomic nervous dysfunction. Herein, we report a 68-year-old Chinese woman who was hospitalized because of resting tremor and bradykinesia that had been present for 7 years. Five years prior, bradykinesia and hypermyotonia had become apparent. She had urinary incontinence and rapid eye movement sleep behavior disorder. She was diagnosed with Parkinson's disease (PD) and received levodopa and pramipexole, which relieved her motor symptoms. During hospitalization, diffusion-weighted imaging revealed a high-intensity signal along the cortical medullary junction. Moreover, a skin biopsy revealed the presence of intranuclear inclusions in adipocytes, fibroblasts, and sweat gland cells. NIID was diagnosed by testing the Notch 2 N-terminal-like C (NOTCH2NLC) gene. We report this case to remind doctors to consider NIID when diagnosing patients with symptoms indicative of Parkinson's disease. Moreover, we note that further research is needed on the mechanism by which levodopa is effective for NIID.
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Affiliation(s)
- Dandan Yu
- Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - Jing Li
- Donggang Center Hospital, Donggang, China
| | - Hongfei Tai
- Beijing Tiantan Hospital Capital Medical University, Beijing, China
| | - Jing Ma
- Donggang Center Hospital, Donggang, China
| | - Zaiqiang Zhang
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Wei Tang
- Dalian University Affiliated Xinhua Hospital, Dalian, China
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Ren X, Tan D, Deng J, Wang Z, Hong D. Skin biopsy and neuronal intranuclear inclusion disease. J Dermatol 2023; 50:1367-1372. [PMID: 37718652 DOI: 10.1111/1346-8138.16966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 08/04/2023] [Accepted: 08/31/2023] [Indexed: 09/19/2023]
Abstract
Neuronal intranuclear inclusion disease (NIID) is a rare neurodegenerative disease with variable clinical phenotypes. There is a considerable delay in the definite diagnosis, which primarily depends on postmortem brain pathological examination. Although CGG repeat expansion in the 5'-untranslated region of NOTCH2NLC has been identified as a disease-associated variant, the pathological diagnosis is still required in certain NIID cases. Intranuclear inclusions found in the skin tissue of patients with NIID dramatically increased its early detection rate. Skin biopsy, as a minimally invasive method, has become widely accepted as a routine examination to confirm the pathogenicity of the repeat expansion in patients with suspected NIID. In addition, the shared developmental origin of the skin and nerve system provided a new insight into the pathological changes observed in patients with NIID. In this review, we systematically discuss the role of skin biopsy for NIID diagnosis, the procedure of skin biopsy, and the pathophysiological mechanism of intranuclear inclusion in the skin.
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Affiliation(s)
- Xiao Ren
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Multidisciplinary collaborative group for cutaneous neuropathology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dandan Tan
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Multidisciplinary collaborative group for cutaneous neuropathology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianwen Deng
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Daojun Hong
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Multidisciplinary collaborative group for cutaneous neuropathology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Yan Y, Cao L, Gu L, Xu C, Fang W, Tian J, Yin X, Zhang B, Zhao G. The clinical characteristics of neuronal intranuclear inclusion disease and its relation with inflammation. Neurol Sci 2023; 44:3189-3197. [PMID: 37099235 DOI: 10.1007/s10072-023-06822-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/19/2023] [Indexed: 04/27/2023]
Abstract
BACKGROUND Neuronal intranuclear inclusion disease (NIID) is a great imitator with a broad spectrum of clinical manifestations that include dementia, parkinsonism, paroxysmal symptoms, peripheral neuropathy, and autonomic dysfunction. Hence, it may also masquerade as other diseases such as Alzheimer's disease, Parkinson's disease, and Charcot-Marie-Tooth disease. Recent breakthroughs on neuroimaging, skin biopsy, and genetic testing have facilitated the diagnosis. However, early identification and effective treatment are still difficult in cases of NIID. OBJECTIVE To further study the clinical characteristics of NIID and investigate the relationship between NIID and inflammation. METHODS We systematically evaluated the clinical symptoms, signs, MRI and electromyographical findings, and pathological characteristics of 20 NIID patients with abnormal GGC repeats in the NOTCH2NLC gene. Some inflammatory factors in the patients were also studied. RESULTS Paroxysmal symptoms such as paroxysmal encephalopathy, stroke-like episodes, and mitochondrial encephalomyopathy lactic acidosis and stroke (MELAS)-like episode were the most common phenotypes. Other symptoms such as cognitive dysfunction, neurogenic bladder, tremor, and vision disorders were also suggestive of NIID. Interestingly, not all patients showed apparent diffusion-weighted imaging (DWI) abnormality or intranuclear inclusions, while abnormal GGC repeats of NOTCH2NLC were seen in all patients. And fevers were noticed in some patients during encephalitic episodes, usually with increasing leukocyte counts and neutrophil ratios. Both IL-6 (p = 0.019) and TNF-α (p = 0.027) levels were significantly higher in the NIID group than in normal controls. CONCLUSION Genetic testing of NOTCH2NLC may be the best choice in the diagnosis of NIID. Inflammation might be involved in the pathogenesis of NIID.
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Affiliation(s)
- Yaping Yan
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China
| | - Lanxiao Cao
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, Zhejiang Province, China
| | - Luyan Gu
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China
| | - Congying Xu
- Department of Neurology, The Second People's Hospital of Jiaxing, Jiaxing, 314099, Zhejiang Province, China
| | - Wei Fang
- Department of Neurology, Hangzhou Traditional Chinese Medicine Hospital, Hangzhou, 310007, Zhejiang Province, China
| | - Jun Tian
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China
| | - Xinzhen Yin
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China
| | - Baorong Zhang
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China.
| | - Guohua Zhao
- Department of Neurology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang Province, China.
- Department of Neurology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, Zhejiang Province, China.
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Katayama T, Takahashi K, Yahara O, Sawada J, Ishida KI, Asanome A, Endo H, Saito T, Hasebe N, Kishibe M, Kanno H, Ishiko S, Sone J. NOTCH2NLC mutation-positive neuronal intranuclear inclusion disease with retinal dystrophy: A case report and literature review. Medicine (Baltimore) 2023; 102:e33789. [PMID: 37171294 PMCID: PMC10174370 DOI: 10.1097/md.0000000000033789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
INTRODUCTION Neuronal intranuclear inclusion disease (NIID) is a neurodegenerative disorder that produces a broad spectrum of clinical conditions such as dementia, upper motor neuron involvement, extrapyramidal symptoms, and neuropathy. Some studies have reported ophthalmological conditions associated with the disease; however, the details of these conditions remain unclear. PATIENT CONCERNS We report a 63-year-old Japanese female with cognitive decline, blurred vision, photophobia, and color blindness at 52 years of age who was diagnosed with cone dystrophy. She also had anxiety, insomnia, depression, delusions, hallucinations, a wide-based gait with short steps, and urinary incontinence. DIAGNOSES, INTERVENTIONS, AND OUTCOMES Magnetic resonance imaging revealed diffuse cerebral white matter changes and subcortical hyperintensity on diffusion-weighted imaging. Skin biopsy showed p62-positive intranuclear inclusions in sweat glands. NOTCH2NLC gene analysis revealed abnormal GGC expansion; therefore, NIID was diagnosed. CONCLUSION NOTCH2NLC mutation-positive NIID may be associated with retinal dystrophy. Brain magnetic resonance imaging and skin biopsy are helpful diagnostic clues, and gene analysis is crucial for accurate diagnosis and appropriate management.
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Affiliation(s)
| | - Kae Takahashi
- Department of Neurology, Asahikawa City Hospital, Japan
| | - Osamu Yahara
- Department of Neurology, Asahikawa City Hospital, Japan
| | - Jun Sawada
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Ken-Ichi Ishida
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Asuka Asanome
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Hisako Endo
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Tsukasa Saito
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Naoyuki Hasebe
- Division of Neurology, First Department of Internal Medicine, Asahikawa Medical University, Japan
| | - Mari Kishibe
- Department of Dermatology, Asahikawa Medical University, Japan
| | - Harumi Kanno
- Department of Ophthalmology, Asahikawa City Hospital, Japan
| | - Satoshi Ishiko
- Department of Ophthalmology, Asahikawa Medical University, Japan
| | - Jun Sone
- Institute for Medical Science of Aging, Aichi Medical University, Japan
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Williams LJ, Qiu J, Ong TL, Deveson IW, Stevanovski I, Chintalaphani SR, Fellner A, Varikatt W, Morales‐Briceno H, Tchan M, Kumar KR, Fung VS. NOTCH2NLC GGC Repeat Expansion Presenting as Adult-Onset Cervical Dystonia. Mov Disord Clin Pract 2023; 10:704-706. [PMID: 37070059 PMCID: PMC10105096 DOI: 10.1002/mdc3.13677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 01/15/2023] [Accepted: 01/19/2023] [Indexed: 02/05/2023] Open
Affiliation(s)
- Laura J. Williams
- Movement Disorder Unit, Department of NeurologyWestmead HospitalWestmeadNew South WalesAustralia
| | - Jessica Qiu
- Movement Disorder Unit, Department of NeurologyWestmead HospitalWestmeadNew South WalesAustralia
| | - Tien Lee Ong
- Movement Disorder Unit, Department of NeurologyWestmead HospitalWestmeadNew South WalesAustralia
| | - Ira W. Deveson
- Garvan Institute of Medical ResearchDarlinghurstNew South WalesAustralia
- St. Vincent's Clinical School, Faculty of MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | - Igor Stevanovski
- Garvan Institute of Medical ResearchDarlinghurstNew South WalesAustralia
| | - Sanju R. Chintalaphani
- Garvan Institute of Medical ResearchDarlinghurstNew South WalesAustralia
- St. Vincent's Clinical School, Faculty of MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | - Avi Fellner
- Garvan Institute of Medical ResearchDarlinghurstNew South WalesAustralia
- Raphael Recanati Genetics Institute, Rabin Medical CenterBeilinson HospitalPetah TikvaIsrael
- The Neurology Department, Rabin Medical CenterBeilinson HospitalPetah TikvaIsrael
| | - Winny Varikatt
- Tissue Pathology and Diagnostic Oncology, Institute of Clinical Pathology and Medical ResearchWestmead HospitalWestmeadNew South WalesAustralia
- Sydney Medical SchoolThe University of SydneySydneyNew South WalesAustralia
| | - Hugo Morales‐Briceno
- Movement Disorder Unit, Department of NeurologyWestmead HospitalWestmeadNew South WalesAustralia
| | - Michel Tchan
- Sydney Medical SchoolThe University of SydneySydneyNew South WalesAustralia
- Department of Medical GeneticsWestmead HospitalWestmeadNew South WalesAustralia
| | - Kishore R. Kumar
- Garvan Institute of Medical ResearchDarlinghurstNew South WalesAustralia
- Sydney Medical SchoolThe University of SydneySydneyNew South WalesAustralia
- Molecular Medicine LaboratoryConcord HospitalConcordNew South WalesAustralia
- Neurology Department, Central Clinical School, Concord Repatriation General HospitalUniversity of SydneyConcordNew South WalesAustralia
| | - Victor S.C. Fung
- Movement Disorder Unit, Department of NeurologyWestmead HospitalWestmeadNew South WalesAustralia
- Sydney Medical SchoolThe University of SydneySydneyNew South WalesAustralia
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NOTCH2NLC GGC repeats are not expanded in Italian amyotrophic lateral sclerosis patients. Sci Rep 2023; 13:3187. [PMID: 36823368 PMCID: PMC9950471 DOI: 10.1038/s41598-023-30393-6] [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: 03/16/2022] [Accepted: 02/22/2023] [Indexed: 02/25/2023] Open
Abstract
Repeat expansions in genes other than C9orf72 and ATXN2 have been recently associated with Amyotrophic Lateral Sclerosis (ALS). Indeed, an abnormal number of GGC repeats in NOTCH2NLC has been recently reported in 0.7% of sporadic ALS patients from mainland China. This finding was not confirmed in an ALS cohort of subjects from Taiwan. As the involvement of expanded NOTCH2NLC alleles in ALS is debated, we addressed this point by evaluating NOTCH2NLC repeat expansions in an Italian cohort of ALS patients. A screening analysis of NOTCH2NLC GGC repeats was performed by repeat-primed polymerase chain reaction (RP-PCR) in a cohort of 385 probable/definite ALS Italian patients. Mean age at onset was 60.5 years (SD 13.7), and 60.9% were males. Sporadic cases were 357 (92.7%), and most patients had a spinal onset (71.8%). None of our patients showed the typical sawtooth tail pattern on RP-PCR, thus excluding abnormal repeat expansion in NOTCH2NLC. Overall, we suggest that NOTCH2NLC expanded alleles might be absent or at least extremely rare in ALS Italian patients. Further investigations in larger cohorts with different ethnic backgrounds are required to support the involvement of NOTCH2NLC in ALS.
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Itamoto S, Yanagi T, Yabe I, Matsuno Y, Ujiie H. Skin biopsies for diagnosing neuronal intranuclear inclusion disease: A retrospective study of 12 cases. J Dermatol 2023. [PMID: 36756706 DOI: 10.1111/1346-8138.16736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 02/10/2023]
Abstract
Neuronal intranuclear inclusion disease (NIID) is a progressive neurodegenerative condition. Skin biopsies taken from the lower leg were reported to be a standard diagnostic procedure for NIID; however, no studies have addressed the optimal skin biopsy locations. We retrospectively analyzed 12 cases in which skin biopsies were performed for diagnosing NIID. We collected clinical information including age, sex, skin biopsy site, the presence of nuclear inclusion bodies, the results of p62 immunostaining, the final diagnosis from the department of neurology, and the presence of abnormal GGC repeats in the NOTCH2NLC gene. Four of the 12 cases had a final diagnosis of NIID. One of the four cases was biopsied from the lower leg, whereas the other three cases were biopsied from the abdomen or thigh. Biopsy specimens of the four definite NIID cases revealed the average rates of nuclear inclusion body-positive cells in adipocytes, sweat gland cells, and fibroblasts to be 13.2%, 10.3%, and 6.3%, respectively. GGC repeat abnormalities in the NOTCH2NLC gene were observed in two of the four cases. The present study indicates that sites with ample subcutaneous fat tissue could be promising for diagnostic skin biopsies for NIID.
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Affiliation(s)
- Sota Itamoto
- Department of Dermatology Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Teruki Yanagi
- Department of Dermatology Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ichiro Yabe
- Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshihiro Matsuno
- Department of Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - Hideyuki Ujiie
- Department of Dermatology Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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9
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Wan M, He J, Huo J, Sun C, Fu Y, Fan D. Intermediate-Length GGC Repeat Expansion in NOTCH2NLC Was Identified in Chinese Patients with Amyotrophic Lateral Sclerosis. Brain Sci 2023; 13:brainsci13010085. [PMID: 36672065 PMCID: PMC9856391 DOI: 10.3390/brainsci13010085] [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: 11/15/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
GGC repeat expansions in the 5' untranslated region (5'UTR) of the Notch Homolog 2 N-terminal-like C gene (NOTCH2NLC) have been reported to be the genetic cause of neuronal intranuclear inclusion disease (NIID). However, whether they exist in other neurodegenerative disorders remains unclear. To determine whether there is a medium-length amplification of NOTCH2NLC in patients with amyotrophic lateral sclerosis (ALS), we screened 476 ALS patients and 210 healthy controls for the presence of a GGC repeat expansion in NOTCH2NLC by using repeat-primed polymerase chain reaction (RP-PCR) and fragment analysis. The repeat number in ALS patients was 16.11 ± 5.7 (range 7-46), whereas the repeat number in control subjects was 16.19 ± 3.79 (range 10-29). An intermediate-length GGC repeat expansion was observed in two ALS patients (numbers of repeats: 45, 46; normal repeat number ≤ 40) but not in the control group. The results suggested that the intermediate NOTCH2NLC GGC repeat expansion was associated with Chinese ALS patients, and further functional studies for intermediate-length variation are required to identify the mechanism.
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Affiliation(s)
- Mengxia Wan
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
| | - Ji He
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
| | - Junyan Huo
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
| | - Can Sun
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
| | - Yu Fu
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
- Correspondence: (Y.F.); (D.F.)
| | - Dongsheng Fan
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
- Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing 100191, China
- Key Laboratory for Neuroscience, Ministry of Education/National Health Commission, Peking University, Beijing 100191, China
- Correspondence: (Y.F.); (D.F.)
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10
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Li F, Wang Q, Zhu Y, Xiao J, Gu M, Yu J, Deng J, Sun W, Wang Z. Unraveling rare form of adult-onset NIID by characteristic brain MRI features: A single-center retrospective review. Front Neurol 2022; 13:1085283. [PMID: 36588885 PMCID: PMC9798416 DOI: 10.3389/fneur.2022.1085283] [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: 10/31/2022] [Accepted: 11/30/2022] [Indexed: 12/16/2022] Open
Abstract
Adult-onset neuronal intranuclear inclusion disease (NIID) is a rare neurodegenerative disorder with high clinical heterogeneity. Previous studies indicated that the high-intensity signals in the corticomedullary junction on diffusion-weighted imaging (DWI) on brain MRI, known as the "ribbon sign," could serve as a strong diagnostic clue. Here we used the explorative approach to study the undiagnosed rate of adult-onset NIID in a single center in China via searching for the ribbon sign in picture archive and communication system (PACS) and report the clinical and radiological features of initially undiagnosed NIID patients. Consecutive brain MRI of 21,563 adult individuals (≥18 years) in the PACS database in 2019 from a tertiary hospital were reviewed. Of them, 4,130 were screened out using the keywords "leukoencephalopathy" and "white matter demyelination." Next, all 4,130 images were read by four neurologists. The images with the suspected ribbon sign were reanalyzed by two neuroradiologists. Those with the ribbon sign but without previously diagnosed NIID were invited for skin biopsy and/or genetic testing for diagnostic confirmation. The clinical features of all NIID patients were retrospectively reviewed. Five patients with high-intensity in the corticomedullary junction on DWI were enrolled. Three patients were previously diagnosed with NIID confirmed by genetic or pathological findings and presented with episodic encephalopathy or cognitive impairment. The other two patients were initially diagnosed with limb-girdle muscular dystrophy (LGMD) with rimmed vacuoles (RVs) and normal pressure hydrocephalus (NPH) in one each. Genetic analysis demonstrated GGC repeat expansion in the NOTCH2NLC gene of both, and skin biopsy of the first patient showed the presence of intranuclear hyaline inclusion bodies. Thus, five of the 21,563 adult patients (≥18 years) were diagnosed with NIID. The distinctive subcortical high-intensity signal on DWI was distributed extensively throughout the lobes, corpus callosum, basal ganglia, and brainstem. In addition, T2-weighted imaging revealed white matter hyperintensity of Fazekas grade 2 or 3, atrophy, and ventricular dilation. Distinctive DWI hyperintensity in the junction between the gray and white matter can help identify atypical NIID cases. Our findings highly suggest that neurologists and radiologists should recognize the characteristic neuroimaging pattern of NIID.
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Affiliation(s)
- Fan Li
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Qi Wang
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Ying Zhu
- Medical Imaging Department, Peking University First Hospital, Beijing, China
| | - Jiangxi Xiao
- Medical Imaging Department, Peking University First Hospital, Beijing, China
| | - Muliang Gu
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Jiaxi Yu
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Jianwen Deng
- Department of Neurology, Peking University First Hospital, Beijing, China,Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China
| | - Wei Sun
- Department of Neurology, Peking University First Hospital, Beijing, China,Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China,*Correspondence: Wei Sun ✉
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, Beijing, China,Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China,Zhaoxia Wang ✉
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11
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Mao C, Zhou L, Li J, Pang J, Chu S, Jin W, Huang X, Wang J, Liu C, Liu Q, Hao H, Zhou Y, Hou B, Feng F, Shen L, Tang B, Peng B, Cui L, Gao J. Clinical-neuroimaging-pathological relationship analysis of adult onset Neuronal Intranuclear Inclusion Disease (NIID). BMC Neurol 2022; 22:486. [PMID: 36522621 PMCID: PMC9753287 DOI: 10.1186/s12883-022-03025-1] [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: 09/04/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Neuronal Intranuclear Inclusion Disease (NIID) is a degenerative disease with heterogeneous clinical manifestations. We aim to analysis the relationship between clinical manifestations, neuroimaging and skin pathology in a Chinese NIID cohort. METHODS Patients were recruited from a Chinese cohort. Detail clinical information were collected. Visual rating scale was used for evaluation of neuroimaging. The relationship between clinical presentations and neuroimaging, as well as skin pathology was statistically analyzed. RESULTS Thirty-two patients were recruited. The average onset age was 54.3 y/o. 28.1% had positive family history. Dementia, autonomic nervous system dysfunction, episodic attacks were three main presentations. CSF analysis including Aβ42 and tau level was almost normal. The most frequently involved on MRI was periventricular white matter (100%), frontal subcortical and deep white matter (96.6%), corpus callosum (93.1%) and external capsule (72.4%). Corticomedullary junction DWI high intensity was found in 87.1% patients. Frontal and external capsule DWI high intensity connected to form a "kite-like" specific image. Severity of dementia was significantly related to leukoencephalopathy (r = 0.465, p = 0.0254), but not cortical atrophy and ventricular enlargement. Grey matter lesions were significantly associated with encephalopathy like attacks (p = 0.00077) but not stroke like attacks. The density of intranuclear inclusions in skin biopsy was not associated with disease duration, severity of leukoencephalopathy and dementia. CONCLUSIONS Specific distribution of leukoencephalopathy and DWI high intensity were indicative. Leukoencephalopathy and subcortical mechanism were critical in pathogenesis of NIID. Irrelevant of inclusion density and clinical map suggested the direct pathogenic factor need further investigation.
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Affiliation(s)
- Chenhui Mao
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Liangrui Zhou
- grid.413106.10000 0000 9889 6335Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Beijing, 100730 China
| | - Jie Li
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Junyi Pang
- grid.413106.10000 0000 9889 6335Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Beijing, 100730 China
| | - Shanshan Chu
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Wei Jin
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Xinying Huang
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Jie Wang
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Caiyan Liu
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Qing Liu
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Honglin Hao
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Yan Zhou
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Bo Hou
- grid.413106.10000 0000 9889 6335Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Beijing, 100730 China
| | - Feng Feng
- grid.413106.10000 0000 9889 6335Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Beijing, 100730 China
| | - Lu Shen
- grid.452223.00000 0004 1757 7615Department of Neurology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008 Hunan China
| | - Beisha Tang
- grid.452223.00000 0004 1757 7615Department of Neurology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008 Hunan China
| | - Bin Peng
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Liying Cui
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
| | - Jing Gao
- grid.413106.10000 0000 9889 6335Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science/Peking Union Medical College, Shuaifuyuan 1St, Dongcheng District, Beijing, 100730 China
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Gao X, Shao ZD, Zhu L. Typical imaging manifestation of neuronal intranuclear inclusion disease in a man with unsteady gait: A case report. World J Clin Cases 2022; 10:12388-12394. [PMID: 36483830 PMCID: PMC9724510 DOI: 10.12998/wjcc.v10.i33.12388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/25/2022] [Accepted: 11/02/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Neuronal intranuclear inclusion disease (NIID) is a rare neurological degenerative disorder with diverse manifestations and inadequate awareness. Only a few cases of NIID have been reported, and typical imaging findings can provide certain clues for the diagnosis of the disease. Furthermore, skin biopsy and genetic testing are important to confirm the diagnosis.
CASE SUMMARY An 84-year-old man presented to the Neurology Department of our hospital complaining of a progressive course of cognitive impairment and unsteady gait for 2 years. The symptoms gradually progressed and affected his daily life. The patient was initially diagnosed with Parkinson’s disease and vascular dementia. The patient did not respond to conventional treatment, such as dopasehydrazine. Therefore, magnetic resonance imaging (MRI) was performed. Based on the imaging findings, we suspected an NIID diagnosis. During the 3-year follow-up in our hospital, his clinical symptoms gradually progressed, and imaging findings became more significant. A high signal intensity along the corticomedullary junction persisted on MRI. Gene testing and skin biopsy were recommended in our hospital; however, the patient refused these procedures. NIID was also considered when he went to a superior hospital in Shanghai. The patient eventually agreed to undergo gene testing. This revealed abnormal GGC repeat expansions in the NOTCH2NLC gene.
CONCLUSION The clinical manifestations of NIID are diverse. Patients with clinical manifestations similar to Parkinson’s disease and dementia may have NIID.
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Affiliation(s)
- Xue Gao
- Department of Neurology, The Second Affiliated Hospital of Wannan Medical College, Wuhu 241000, Anhui Province, China
| | - Zhi-Ding Shao
- Department of Neurology, The Second Affiliated Hospital of Wannan Medical College, Wuhu 241000, Anhui Province, China
| | - Lei Zhu
- Department of Neurology, Huainan First People’s Hospital Affiliated to Auhui University of Science and Technology, Huainan 232000, Anhui Province, China
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13
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Liu Y, Zeng L, Yuan Y, Wang Y, Chen K, Chen Y, Bai J, Xiao F, Xu Y, Yang J, Tan S. Case report: Two siblings with neuronal intranuclear inclusion disease exhibiting distinct clinicoradiological findings. Front Neurol 2022; 13:1013213. [DOI: 10.3389/fneur.2022.1013213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
Neuronal intranuclear inclusion disease (NIID) is a rare neurodegenerative disorder characterized by the presence of eosinophilic hyaline intranuclear inclusions. Owing to its widely varying clinical manifestations, NIID is frequently misdiagnosed or overlooked. However, a characteristic high-intensity corticomedullary junction signal on diffusion-weighted imaging (DWI) is often indicative of NIID. In this study, we described the case of two sisters with NIID who presented with distinct symptoms and imaging data. The younger sister showed symptoms similar to those of mitochondrial encephalopathy, with a reversible high-intensity signal from the cortex on T2 and DWI. The elder sister showed a characteristic high-signal “ribbon sign” in the corticomedullary junction on DWI. Skin biopsy confirmed that both had neuronal intranuclear inclusion. Two years later, the younger sister also developed the characteristic high-signal “ribbon sign” in the corticomedullary junction on DWI. This case study provides new insights into the complexity of NIID. The findings suggest that patients with this condition, including those belonging to the same family, may exhibit varying clinical and imaging features at different times.
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CGG repeat expansion in NOTCH2NLC causes mitochondrial dysfunction and progressive neurodegeneration in Drosophila model. Proc Natl Acad Sci U S A 2022; 119:e2208649119. [PMID: 36191230 PMCID: PMC9565157 DOI: 10.1073/pnas.2208649119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Neuronal intranuclear inclusion disease (NIID) is a neuromuscular/neurodegenerative disease caused by the expansion of CGG repeats in the 5' untranslated region (UTR) of the NOTCH2NLC gene. These repeats can be translated into a polyglycine-containing protein, uN2CpolyG, which forms protein inclusions and is toxic in cell models, albeit through an unknown mechanism. Here, we established a transgenic Drosophila model expressing uN2CpolyG in multiple systems, which resulted in progressive neuronal cell loss, locomotor deficiency, and shortened lifespan. Interestingly, electron microscopy revealed mitochondrial swelling both in transgenic flies and in muscle biopsies of individuals with NIID. Immunofluorescence and immunoelectron microscopy showed colocalization of uN2CpolyG with mitochondria in cell and patient samples, while biochemical analysis revealed that uN2CpolyG interacted with a mitochondrial RNA binding protein, LRPPRC (leucine-rich pentatricopeptide repeat motif-containing protein). Furthermore, RNA sequencing (RNA-seq) analysis and functional assays showed down-regulated mitochondrial oxidative phosphorylation in uN2CpolyG-expressing flies and NIID muscle biopsies. Finally, idebenone treatment restored mitochondrial function and alleviated neurodegenerative phenotypes in transgenic flies. Overall, these results indicate that transgenic flies expressing uN2CpolyG recapitulate key features of NIID and that reversing mitochondrial dysfunction might provide a potential therapeutic approach for this disorder.
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Abstract
PURPOSE OF REVIEW Oculopharyngodistal myopathy (OPDM) is a rare adolescent or adult-onset neuromuscular disease that is characterized by progressive ocular, facial, pharyngeal and distal limb muscle weakness. The rimmed vacuoles and intranuclear inclusions in myofibers constitute the pathological hallmark of OPDM. In this review, the latest findings related to the genetic, molecular and clinical features of OPDM, as well as the diagnosis and management are summarized. RECENT FINDINGS Four gene mutations, CGG repeats in the 5'-untranslated region of LRP12 , GIPC1 , NOTCH2NLC and RILPL1 have been reported to be disease-causing genes in OPDM, namely OPDM1, OPDM2, OPDM3 and OPDM4, accordingly. So far, limited studies have suggested that CGG repeat expansion within the pathogenic range may play a key role in the pathogenesis of OPDM with the gain-of-function mechanism at the RNA and/or protein level, while repeat expansion over a threshold limit may cause hypermethylation, leading to the transcriptional silencing of the CGG repeats in the expanded allele, which results in the existence of mild phenotype or asymptomatic carriers. SUMMARY Novel gene mutations, possible molecular mechanisms and the clinical features related to different causative genes are discussed in this review. More studies on the exact pathogenic mechanism are needed.
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Affiliation(s)
- Jiaxi Yu
- Department of Neurology, Peking University First Hospital
- Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China
| | - Jianwen Deng
- Department of Neurology, Peking University First Hospital
- Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital
- Beijing Key Laboratory of Neurovascular Disease Discovery, Beijing, China
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16
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Zhou Y, Huang P, Huang Z, Peng Y, Zheng Y, Yu Y, Zhu M, Deng J, Wang Z, Hong D. Urine cytological study in patients with clinicopathologically confirmed neuronal intranuclear inclusion disease. Front Aging Neurosci 2022; 14:977604. [PMID: 36172483 PMCID: PMC9510843 DOI: 10.3389/fnagi.2022.977604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/25/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveThe diagnosis of neuronal intranuclear inclusion disease (NIID) is currently based on CGG repeat expansion in the 5′UTR of the NOTCH2NLC gene, or p62-positive intranuclear inclusions in skin biopsy. The purpose of this study is to explore the value of non-invasive pathological findings in urine sediment cells from NIID patients.Materials and methodsTen patients with clinically suspected NIID were enrolled for skin biopsy and gene screening. Morning urine (500 ml) was collected from each patient, and cell sediment was obtained by centrifugation. Urine cytology, including Giemsa staining, p62 immunostaining, and electron microscopic examination, were conducted on cell sediment.ResultsThe main clinical symptoms of 10 patients included episodic disturbance of consciousness, cognitive impairment, tremor, limb weakness, and so on. Cerebral MRI showed that 9 patients had linear DWI high signal in the corticomedullary junction. Genetic testing found that the number of CGG repeat ranged from 96 to 158 in the NOTCH2NLC gene. Skin biopsy revealed that all patients showed p62-positive intranuclear inclusions in 18.5 ± 6.3% of the duct epithelial cells of sweat gland. In contrast, urine sediment smears revealed that only 3 patients had p62 positive intranuclear inclusions in 3.5 ± 1.2% of the sedimentary cells. Ultrastructural examinations showed that intranuclear inclusions were also identified in the cell sediment of the 3 patients.ConclusionUrine cytology may be a new and non-invasive pathological diagnosis technique for some NIID patients, although the positive rate is not as high as that of skin biopsy, which is a sensitive and reliable pathological method for NIID.
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Affiliation(s)
- Yiyi Zhou
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Pengcheng Huang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhaojun Huang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yun Peng
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yilei Zheng
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yaqing Yu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Min Zhu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianwen Deng
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, Beijing, China
- *Correspondence: Daojun Hong,
| | - Daojun Hong
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Genetics, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Zhaoxia Wang,
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17
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Zhou X, Huang H, He R, Zeng S, Liu Z, Xu Q, Guo J, Yan X, Duan R, Li J, Tang B, Xu Y, Sun Q. Clinical Features and Reclassification of Essential Tremor with
NOTCH2NLC
GGC
Repeat Expansions based on a long‐term follow‐up. Eur J Neurol 2022; 29:3600-3610. [DOI: 10.1111/ene.15552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/22/2022] [Accepted: 09/01/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Xun Zhou
- Department of Geriatric Neurology, Xiangya Hospital Central South University Changsha Hunan China
| | - Hongyan Huang
- Department of Neurology, West China Hospital Sichuan University Chengdu China
| | - Runcheng He
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
| | - Sheng Zeng
- Department of Geriatric Neurology, The Second Xiangya Hospital Central South University Changsha Hunan China
| | - Zhenhua Liu
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
| | - Qian Xu
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
| | - Jifeng Guo
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
| | - Xinxiang Yan
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
| | - Ranhui Duan
- Center for Medical Genetics, School of Life Sciences Central South University Changsha Hunan China
| | - Jinchen Li
- Department of Geriatric Neurology, Xiangya Hospital Central South University Changsha Hunan China
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Center for Medical Genetics, School of Life Sciences Central South University Changsha Hunan China
| | - Beisha Tang
- Department of Geriatric Neurology, Xiangya Hospital Central South University Changsha Hunan China
- Department of Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Center for Medical Genetics, School of Life Sciences Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
| | - Yanming Xu
- Department of Neurology, West China Hospital Sichuan University Chengdu China
| | - Qiying Sun
- Department of Geriatric Neurology, Xiangya Hospital Central South University Changsha Hunan China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University Changsha Hunan China
- Key Laboratory of Hunan Province in Neurodegenerative Disorders Central South University Changsha Hunan China
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Wu W, Yu J, Qian X, Wang X, Xu Y, Wang Z, Deng J. Intermediate-length CGG repeat expansion in NOTCH2NLC is associated with pathologically confirmed Alzheimer's disease. Neurobiol Aging 2022; 120:189-195. [DOI: 10.1016/j.neurobiolaging.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/08/2022] [Accepted: 09/10/2022] [Indexed: 10/14/2022]
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Chen S, Zou JL, He S, Li W, Zhang JW, Li SJ. Adult-onset autosomal dominant leukodystrophy and neuronal intranuclear inclusion disease: lessons from two new Chinese families. Neurol Sci 2022; 43:1-9. [DOI: 10.1007/s10072-022-06057-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/02/2022] [Indexed: 12/23/2022]
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20
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Boivin M, Charlet-Berguerand N. Trinucleotide CGG Repeat Diseases: An Expanding Field of Polyglycine Proteins? Front Genet 2022; 13:843014. [PMID: 35295941 PMCID: PMC8918734 DOI: 10.3389/fgene.2022.843014] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/31/2022] [Indexed: 12/30/2022] Open
Abstract
Microsatellites are repeated DNA sequences of 3–6 nucleotides highly variable in length and sequence and that have important roles in genomes regulation and evolution. However, expansion of a subset of these microsatellites over a threshold size is responsible of more than 50 human genetic diseases. Interestingly, some of these disorders are caused by expansions of similar sequences, sizes and localizations and present striking similarities in clinical manifestations and histopathological features, which suggest a common mechanism of disease. Notably, five identical CGG repeat expansions, but located in different genes, are the causes of fragile X-associated tremor/ataxia syndrome (FXTAS), neuronal intranuclear inclusion disease (NIID), oculopharyngodistal myopathy type 1 to 3 (OPDM1-3) and oculopharyngeal myopathy with leukoencephalopathy (OPML), which are neuromuscular and neurodegenerative syndromes with overlapping symptoms and similar histopathological features, notably the presence of characteristic eosinophilic ubiquitin-positive intranuclear inclusions. In this review we summarize recent finding in neuronal intranuclear inclusion disease and FXTAS, where the causing CGG expansions were found to be embedded within small upstream ORFs (uORFs), resulting in their translation into novel proteins containing a stretch of polyglycine (polyG). Importantly, expression of these polyG proteins is toxic in animal models and is sufficient to reproduce the formation of ubiquitin-positive intranuclear inclusions. These data suggest the existence of a novel class of human genetic pathology, the polyG diseases, and question whether a similar mechanism may exist in other diseases, notably in OPDM and OPML.
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