Journal of Huntington's disease最新文献

筛选
英文 中文
A Case Series of Delusional Infestation in Huntington's Disease. 亨廷顿舞蹈症妄想症病例系列。
IF 2.1
Journal of Huntington's disease Pub Date : 2024-06-18 DOI: 10.3233/JHD-240013
Wenxin Song, Lauren Daneman, Alexis Cohen-Oram, Stephen Aradi
{"title":"A Case Series of Delusional Infestation in Huntington's Disease.","authors":"Wenxin Song, Lauren Daneman, Alexis Cohen-Oram, Stephen Aradi","doi":"10.3233/JHD-240013","DOIUrl":"https://doi.org/10.3233/JHD-240013","url":null,"abstract":"<p><p> Huntington's disease (HD) is an autosomal dominant disorder that affects the basal ganglia, caused by CAG repeats in the huntingtin gene. Delusional infestation (DI) is a rare psychotic manifestation of the disease. This report presents two cases of HD patients with DI, both middle-aged females. The first patient achieved remission of DI with olanzapine, later cross-tapered to risperidone, but had spontaneous relapses. The second experienced gradual resolution of DI with risperidone in the setting of iron repletion and amantadine discontinuation, although her other psychotic symptoms remained. These cases shed light on an uncommon condition and may help guide understanding of the most effective treatment for it.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141436975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
White Matter Microstructure Changes Revealed by Diffusion Kurtosis and Diffusion Tensor Imaging in Mutant Huntingtin Gene Carriers. 通过扩散峰度和扩散张量成像揭示突变亨廷汀基因携带者的白质微结构变化
IF 2.1
Journal of Huntington's disease Pub Date : 2024-06-14 DOI: 10.3233/JHD-240018
Jin-Hui Yin, Ya-Ou Liu, Hong-Liang Li, Jean Marc Burgunder, Yue Huang
{"title":"White Matter Microstructure Changes Revealed by Diffusion Kurtosis and Diffusion Tensor Imaging in Mutant Huntingtin Gene Carriers.","authors":"Jin-Hui Yin, Ya-Ou Liu, Hong-Liang Li, Jean Marc Burgunder, Yue Huang","doi":"10.3233/JHD-240018","DOIUrl":"https://doi.org/10.3233/JHD-240018","url":null,"abstract":"<p><strong>Background: </strong>Diffusion magnetic resonance imaging (dMRI) has revealed microstructural changes in white matter (WM) in Huntington's disease (HD).</p><p><strong>Objective: </strong>To compare the validities of different dMRI, i.e., diffusion kurtosis imaging (DKI) and diffusion tensor imaging (DTI) in HD.</p><p><strong>Methods: </strong>22 mutant huntingtin (mHTT) carriers and 14 controls were enrolled. Clinical assessments and dMRI were conducted. Based on CAG-Age Product (CAP) score, mHTT carriers were categorized into high CAP (hCAP) and medium and low CAP (m& lCAP) groups. Spearman analyses were used to explore correlations between imaging parameters in brain regions and clinical assessments. Receiver operating characteristic (ROC) was used to distinguish mHTT carriers from control, and define the HD patients at advanced stage.</p><p><strong>Results: </strong>Compared to controls, mHTT carriers exhibited WM changes in DKI and DTI. There were 22 more regions showing significant differences in HD detected by MK than FA. Only MK in five brain regions showed significantly difference between any two group, and negatively correlated with the disease burden (r = -0.80 to -0.71). ROC analysis revealed that MK was more sensitive and FA was more specific, while Youden index showed that the integration of FA and MK gave rise to higher authenticities, in distinguishing m& lCAP from controls (Youden Index = 0.786), and discerning different phase of HD (Youden Index = 0.804).</p><p><strong>Conclusions: </strong>Microstructural changes in WM occur at early stage of HD and deteriorate over the disease progression. Integrating DKI and DTI would provide the best accuracies for differentiating early HD from control and identifying advanced HD.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141436976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insulin-Degrading Enzyme Efficiently Degrades polyQ Peptides but not Expanded polyQ Huntingtin Fragments. 胰岛素降解酶能有效降解多Q肽,但不能降解扩展的多Q亨廷汀片段。
IF 3.1
Journal of Huntington's disease Pub Date : 2024-04-16 DOI: 10.3233/jhd-230583
Karlijne W Geijtenbeek, Angela Santiago Aranda, Alicia Sanz Sanz, Jolien Janzen, Aleksandra E. Bury, Suzan Kors, Nur Al Amery, Nina C.M. Schmitz, Eric Reits, Sabine Schipper-Krom
{"title":"Insulin-Degrading Enzyme Efficiently Degrades polyQ Peptides but not Expanded polyQ Huntingtin Fragments.","authors":"Karlijne W Geijtenbeek, Angela Santiago Aranda, Alicia Sanz Sanz, Jolien Janzen, Aleksandra E. Bury, Suzan Kors, Nur Al Amery, Nina C.M. Schmitz, Eric Reits, Sabine Schipper-Krom","doi":"10.3233/jhd-230583","DOIUrl":"https://doi.org/10.3233/jhd-230583","url":null,"abstract":"Background\u0000Huntington's disease is an inheritable autosomal dominant disorder caused by an expanded CAG trinucleotide repeat within the Huntingtin gene, leading to a polyglutamine (polyQ) expansion in the mutant protein.\u0000\u0000\u0000Objective\u0000A potential therapeutic approach for delaying or preventing the onset of the disease involves enhancing the degradation of the aggregation-prone polyQ-expanded N-terminal mutant huntingtin (mHTT) exon1 fragment. A few proteases and peptidases have been identified that are able to cleave polyQ fragments with low efficiency. This study aims to identify a potent polyQ-degrading endopeptidase.\u0000\u0000\u0000Methods\u0000Here we used quenched polyQ peptides to identify a polyQ-degrading endopeptidase. Next we investigated its role on HTT turnover, using purified polyQ-expanded HTT fragments and striatal cells expressing mHTT exon1 peptides.\u0000\u0000\u0000Results\u0000We identified insulin-degrading enzyme (IDE) as a novel endopeptidase for degrading polyQ peptides. IDE was, however, ineffective in reducing purified polyQ-expanded HTT fragments. Similarly, in striatal cells expressing mHTT exon1 peptides, IDE did not enhance mHTT turnover.\u0000\u0000\u0000Conclusions\u0000This study shows that despite IDE's efficiency in degrading polyQ peptides, it does not contribute to the direct degradation of polyQ-expanded mHTT fragments.","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140696921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress in Huntington's Disease: Characteristics and Correlates in Patients and At-Risk Individuals. 亨廷顿氏症的压力:患者和高危人群的特征与相关性。
IF 3.1
Journal of Huntington's disease Pub Date : 2024-04-03 DOI: 10.3233/JHD-231515
A. Snow, Abagail E. Ciriegio, Kelly H Watson, Anna C. Pfalzer, Spencer Diehl, Lisa M Hale, Katherine E. McDonell, Daniel O. Claassen, Bruce E Compas
{"title":"Stress in Huntington's Disease: Characteristics and Correlates in Patients and At-Risk Individuals.","authors":"A. Snow, Abagail E. Ciriegio, Kelly H Watson, Anna C. Pfalzer, Spencer Diehl, Lisa M Hale, Katherine E. McDonell, Daniel O. Claassen, Bruce E Compas","doi":"10.3233/JHD-231515","DOIUrl":"https://doi.org/10.3233/JHD-231515","url":null,"abstract":"Background\u0000Huntington's disease (HD) is a neurodegenerative disease that presents families with significant numbers of stressful events. However, relatively little empirical research has characterized the stressors encountered by members of HD-affected families and their correlations with psychological symptoms.\u0000\u0000\u0000Objective\u0000This study examined frequencies of specific stressors in HD patients and at-risk individuals and the correlates of these stressors with demographics, disease characteristics, and symptoms of depression and anxiety.\u0000\u0000\u0000Methods\u0000HD patients (n = 57) and at-risk individuals (n = 81) completed the Responses to Stress Questionnaire -Huntington's Disease Version to assess HD-related stressors. Participants completed measures of depression and anxiety symptoms. Patient health records were accessed to obtain information related to disease characteristics.\u0000\u0000\u0000Results\u0000Patients endorsed a mean number of 5.05 stressors (SD = 2.74) out of the 10-item list. Demographics were not related to total stressors, but disease characteristics were significantly related to specific stressors. At-risk individuals endorsed a mean number of 3.20 stressors (SD = 2.65) out of the 11-item list. Age and sex were significantly related to specific stressors. Total number of stressors was significantly related to depression (β=0.67, p <  0.001) and anxiety symptoms (β=0.58, p <  0.001) in patients and at-risk individuals (β=0.35, p = 0.003 and β=0.32, p = 0.006, respectively).\u0000\u0000\u0000Conclusions\u0000hese findings emphasize the significant burden of stress experienced by HD patients and at-risk individuals. We highlight a need for more specific stress-based measures and psychosocial support interventions for HD-affected families.","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140748491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What Huntington's Disease Patients Say About Their Illness: An Online Direct-to-Participant Pilot Study. 亨廷顿氏病患者对疾病的看法:一项直接面向参与者的在线试点研究。
IF 2.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-231520
Karen E Anderson, Lakshmi Arbatti, Abhishek Hosamath, Andrew Feigin, Jody Goldstein, Elise Kayson, Brett L Kinsler, Lauren Falanga, Lynn Denise, Noelle E Carlozzi, Samuel Frank, Katie Jackson, Sandra Kostyk, Jennifer L Purks, Kenneth P Serbin, Shari Kinel, Christopher A Beck, Ira Shoulson
{"title":"What Huntington's Disease Patients Say About Their Illness: An Online Direct-to-Participant Pilot Study.","authors":"Karen E Anderson, Lakshmi Arbatti, Abhishek Hosamath, Andrew Feigin, Jody Goldstein, Elise Kayson, Brett L Kinsler, Lauren Falanga, Lynn Denise, Noelle E Carlozzi, Samuel Frank, Katie Jackson, Sandra Kostyk, Jennifer L Purks, Kenneth P Serbin, Shari Kinel, Christopher A Beck, Ira Shoulson","doi":"10.3233/JHD-231520","DOIUrl":"10.3233/JHD-231520","url":null,"abstract":"<p><strong>Background: </strong>Direct-to-participant online reporting facilitates the conduct of clinical research by increasing access and clinically meaningful patient engagement.</p><p><strong>Objective: </strong>We assessed feasibility of online data collection from adults with diagnosed Huntington's disease (HD) who directly reported their problems and impact in their own words.</p><p><strong>Methods: </strong>Data were collected online from consenting United States residents who self-identified as 1) having been diagnosed with Huntington's disease, 2) able to ambulate independently, and 3) self-sufficient for most daily needs. Data for this pilot study were collected using the Huntington Study Group myHDstory online research platform. The Huntington Disease Patient Report of Problems (HD-PROP), an open-ended questionnaire, was used to capture verbatim bothersome problems and functional impact. Natural language processing, human-in-the-loop curation of verbatim reports involving clinical and experience experts, and machine learning classified verbatim-reports into clinically meaningful symptoms.</p><p><strong>Results: </strong>All 8 questionnaires in the online pilot study were completed by 345 participants who were 60.9% men, 34.5±9.9 (mean±SD) years old, and 9.5±8.4 years since HD diagnosis. Racial self-identification was 46.4% Caucasian, 28.7% African American, 15.4% American Indian/Alaska Native, and 9.5% other. Accuracy of verbatim classification was 99%. Non-motor problems were the most frequently reported symptoms; depression and cognitive impairment were the most common.</p><p><strong>Conclusions: </strong>Online research participation was feasible for a diverse cohort of adults who self-reported an HD diagnosis and predominantly non-motor symptoms related to mood and cognition. Online research tools can help inform what bothers HD patients, identify clinically meaningful outcomes, and facilitate participation by diverse and under-represented populations.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140857282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gut Microbiota as a Modifier of Huntington's Disease Pathogenesis. 肠道微生物群是亨廷顿氏病发病机制的调节因子
IF 2.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-240012
Ali Khoshnan
{"title":"Gut Microbiota as a Modifier of Huntington's Disease Pathogenesis.","authors":"Ali Khoshnan","doi":"10.3233/JHD-240012","DOIUrl":"10.3233/JHD-240012","url":null,"abstract":"<p><p>Huntingtin (HTT) protein is expressed in most cell lineages, and the toxicity of mutant HTT in multiple organs may contribute to the neurological and psychiatric symptoms observed in Huntington's disease (HD). The proteostasis and neurotoxicity of mutant HTT are influenced by the intracellular milieu and responses to environmental signals. Recent research has highlighted a prominent role of gut microbiota in brain and immune system development, aging, and the progression of neurological disorders. Several studies suggest that mutant HTT might disrupt the homeostasis of gut microbiota (known as dysbiosis) and impact the pathogenesis of HD. Dysbiosis has been observed in HD patients, and in animal models of the disease it coincides with mutant HTT aggregation, abnormal behaviors, and reduced lifespan. This review article aims to highlight the potential toxicity of mutant HTT in organs and pathways within the microbiota-gut-immune-central nervous system (CNS) axis. Understanding the functions of Wild-Type (WT) HTT and the toxicity of mutant HTT in these organs and the associated networks may elucidate novel pathogenic pathways, identify biomarkers and peripheral therapeutic targets for HD.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11307070/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140904492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards Standardizing Nomenclature in Huntington's Disease Research. 实现亨廷顿氏病研究命名标准化。
IF 2.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-240044
Marian DiFiglia, Blair R Leavitt, Douglas Macdonald, Leslie M Thompson
{"title":"Towards Standardizing Nomenclature in Huntington's Disease Research.","authors":"Marian DiFiglia, Blair R Leavitt, Douglas Macdonald, Leslie M Thompson","doi":"10.3233/JHD-240044","DOIUrl":"10.3233/JHD-240044","url":null,"abstract":"<p><p>The field of Huntington's disease research covers many different scientific disciplines, from molecular biology all the way through to clinical practice, and as our understanding of the disease has progressed over the decades, a great deal of different terminology has accrued. The field is also renowned for its collaborative spirit and use of standardized reagents, assays, datasets, models, and clinical measures, so the use of standardized terms is especially important. We have set out to determine, through a consensus exercise involving basic and clinical scientists working in the field, the most appropriate language to use across disciplines. Nominally, this article will serve as the style guide for the Journal of Huntington's Disease (JHD), the only journal devoted exclusively to HD, and we lay out the preferred and standardized terminology and nomenclature for use in JHD publications. However, we hope that this article will also serve as a useful resource to the HD research community at large and that these recommended naming conventions will be adopted widely.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11307060/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141537925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of an Angiotensin IV Analog on 3-Nitropropionic Acid-Induced Huntington's Disease-Like Symptoms in Rats. 血管紧张素 IV 类似物对 3-硝基丙酸诱导的大鼠亨廷顿症样症状的影响
IF 3.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-231507
Russell G Wells, Azzam F Azzam, Amie L Hiller, Michael F Sardinia
{"title":"Effects of an Angiotensin IV Analog on 3-Nitropropionic Acid-Induced Huntington's Disease-Like Symptoms in Rats.","authors":"Russell G Wells, Azzam F Azzam, Amie L Hiller, Michael F Sardinia","doi":"10.3233/JHD-231507","DOIUrl":"10.3233/JHD-231507","url":null,"abstract":"<p><strong>Background: </strong>Huntington's disease (HD) is a neurodegenerative disorder characterized by motor, cognitive, and psychiatric dysfunction caused by a mutant huntingtin protein. Compromised metabolic activity resulting from systemic administration of the mitochondrial toxin, 3-nitropropionic acid (3-NP), is known to mimic the pathology of HD and induce HD-like symptoms in rats. N-hexanoic-Tyr-Ile-(6)-amino hexanoic amide (PNB-0408), also known as Dihexa, has been shown to have neuroprotective and procognitive properties in animal models of Alzheimer's and Parkinson's diseases. Given the mechanism of action and success in other neurodegenerative diseases, we felt it an appropriate compound to investigate further for HD.</p><p><strong>Objective: </strong>The present study was designed to test if PNB-0408, an angiotensin IV analog, could attenuate 3-NP-induced HD-like symptoms in rats and serve as a potential therapeutic agent.</p><p><strong>Methods: </strong>Forty male Wistar rats were randomized into three groups consisting of a \"vehicle\" group, a \"3-NP\" group, and a \"3-NP + PNB-0408\" group. PNB-0408 was administered along with chronic exposure to 3-NP. Animal body weight, motor function, and cognitive abilities were measured for five weeks, before euthanasia and histopathological analysis.</p><p><strong>Results: </strong>Exposure to 3-NP decreased the amount of weight rats gained, impaired spatial learning and memory consolidation, and led to marked motor dysfunction. From our observations and analysis, PNB-0408 did not protect rats from the deficits induced by 3-NP neurotoxicity.</p><p><strong>Conclusions: </strong>Our findings suggest that PNB-0408 may not be an efficacious treatment strategy for preventing 3-NP-induced HD-like symptoms in a preclinical model. These data highlight the need for further research of this compound in alternate models and/or alternative approaches to managing this disorder.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140136908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Freesurfer Software Update Significantly Impacts Striatal Volumes in the Huntington's Disease Young Adult Study and Will Influence HD-ISS Staging. Freesurfer 软件更新显著影响亨廷顿氏病青年研究中的纹状体体积,并将影响 HD-ISS 分期。
IF 3.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-231512
Harry Knights, Annabelle Coleman, Nicola Z Hobbs, Sarah J Tabrizi, Rachael I Scahill
{"title":"Freesurfer Software Update Significantly Impacts Striatal Volumes in the Huntington's Disease Young Adult Study and Will Influence HD-ISS Staging.","authors":"Harry Knights, Annabelle Coleman, Nicola Z Hobbs, Sarah J Tabrizi, Rachael I Scahill","doi":"10.3233/JHD-231512","DOIUrl":"10.3233/JHD-231512","url":null,"abstract":"<p><strong>Background: </strong>The Huntington's Disease Integrated Staging System (HD-ISS) defined disease onset using volumetric cut-offs for caudate and putamen derived from FreeSurfer 6 (FS6). The impact of the latest software update (FS7) on volumes remains unknown. The Huntington's Disease Young Adult Study (HD-YAS) is appropriately positioned to explore differences in FS bias when detecting early atrophy.</p><p><strong>Objective: </strong>Explore the relationships and differences between raw caudate and putamen volumes, calculated total intracranial volumes (cTICV), and adjusted caudate and putamen volumes, derived from FS6 and FS7, in HD-YAS.</p><p><strong>Methods: </strong>Images from 123 participants were segmented and quality controlled. Relationships and differences between volumes were explored using intraclass correlation (ICC) and Bland-Altman analysis.</p><p><strong>Results: </strong>Across the whole cohort, ICC for raw caudate and putamen was 0.99, cTICV 0.93, adjusted caudate 0.87, and adjusted putamen 0.86 (all p < 0.0005). Compared to FS6, FS7 calculated: i) larger raw caudate (+0.8%, p < 0.00005) and putamen (+1.9%, p < 0.00005), with greater difference for larger volumes; and ii) smaller cTICV (-5.1%, p < 0.00005), with greater difference for smaller volumes. The systematic and proportional difference in cTICV was greater than raw volumes. When raw volumes were adjusted for cTICV, these effects compounded (adjusted caudate +7.0%, p < 0.00005; adjusted putamen +8.2%, p < 0.00005), with greater difference for larger volumes.</p><p><strong>Conclusions: </strong>As new software is released, it is critical that biases are explored since differences have the potential to significantly alter the findings of HD trials. Until conversion factors are defined, the HD-ISS must be applied using FS6. This should be incorporated into the HD-ISS online calculator.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140136909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mono- and Biallelic Inactivation of Huntingtin Gene in Patient-Specific Induced Pluripotent Stem Cells Reveal HTT Roles in Striatal Development and Neuronal Functions. 患者特异性诱导多能干细胞中亨廷汀基因的单拷贝和双拷贝失活揭示了 HTT 在纹状体发育和神经元功能中的作用。
IF 3.1
Journal of Huntington's disease Pub Date : 2024-01-01 DOI: 10.3233/JHD-231509
Morgane Louessard, Michel Cailleret, Margot Jarrige, Julie Bigarreau, Sophie Lenoir, Noëlle Dufour, Maria Rey, Frédéric Saudou, Nicole Deglon, Anselme L Perrier
{"title":"Mono- and Biallelic Inactivation of Huntingtin Gene in Patient-Specific Induced Pluripotent Stem Cells Reveal HTT Roles in Striatal Development and Neuronal Functions.","authors":"Morgane Louessard, Michel Cailleret, Margot Jarrige, Julie Bigarreau, Sophie Lenoir, Noëlle Dufour, Maria Rey, Frédéric Saudou, Nicole Deglon, Anselme L Perrier","doi":"10.3233/JHD-231509","DOIUrl":"10.3233/JHD-231509","url":null,"abstract":"<p><strong>Background: </strong>Mutations in the Huntingtin (HTT) gene cause Huntington's disease (HD), a neurodegenerative disorder. As a scaffold protein, HTT is involved in numerous cellular functions, but its normal and pathogenic functions during human forebrain development are poorly understood.</p><p><strong>Objective: </strong>To investigate the developmental component of HD, with a specific emphasis on understanding the functions of wild-type and mutant HTT alleles during forebrain neuron development in individuals carrying HD mutations.</p><p><strong>Methods: </strong>We used CRISPR/Cas9 gene-editing technology to disrupt the ATG region of the HTT gene via non-homologous end joining to produce mono- or biallelic HTT knock-out human induced pluripotent stem cell (iPSC) clones.</p><p><strong>Results: </strong>We showed that the loss of wild-type, mutant, or both HTT isoforms does not affect the pluripotency of iPSCs or their transition into neural cells. However, we observed that HTT loss causes division impairments in forebrain neuro-epithelial cells and alters maturation of striatal projection neurons (SPNs) particularly in the acquisition of DARPP32 expression, a key functional marker of SPNs. Finally, young post-mitotic neurons derived from HTT-/- human iPSCs display cellular dysfunctions observed in adult HD neurons.</p><p><strong>Conclusions: </strong>We described a novel collection of isogenic clones with mono- and biallelic HTT inactivation that complement existing HD-hiPSC isogenic series to explore HTT functions and test therapeutic strategies in particular HTT-lowering drugs. Characterizing neural and neuronal derivatives from human iPSCs of this collection, we show evidence that HTT loss or mutation has impacts on neuro-epithelial and striatal neurons maturation, and on basal DNA damage and BDNF axonal transport in post-mitotic neurons.</p>","PeriodicalId":16042,"journal":{"name":"Journal of Huntington's disease","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11091579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140012734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信