Annals of Neurology最新文献

{"title":"Increased Disability Progression in rs10191329^AA Carriers with Multiple Sclerosis Is Preceded by Neurofilament Light Chain Elevations.","authors":"Maria Protopapa, Falk Steffen, Muriel Schraad, Tobias Ruck, Menekse Öztürk, Nicholas Hanuscheck, Josef Shin, Tobias Brummer, Katrin Pape, Timo Uphaus, Sven G Meuth, Vinzenz Fleischer, Charlotte E Teunissen, Philip L De Jager, Felix Luessi, Stefan Bittner, Frauke Zipp","doi":"10.1002/ana.27144","DOIUrl":"https://doi.org/10.1002/ana.27144","url":null,"abstract":"<p><strong>Objective: </strong>We examined the impact of the rs10191329 genetic risk variant on neuroaxonal damage as measured by serum neurofilament light chain (sNfL) levels, and disability progression in people with multiple sclerosis (pwMS).</p><p><strong>Methods: </strong>In a cohort of pwMS (n = 740), 658 participants were prospectively monitored every 2 years for less than a decade while 82 of 740 pwMS were monitored retrospectively for up to 40 years. We investigated associations between rs10191329 variants and clinical outcome, including Expanded Disability Status Scale (EDSS), disability accrual (defined by EDSS-increase of at least 1.5 for patients starting at EDSS 0, at least 1.0 EDSS-points for patients with an initial EDSS between 1 and 4.5 and at least 0.5 points for patients starting with an EDSS equal or greater than 5) and progression to secondary progressive MS (SPMS). Clinical outcomes were analyzed using Kaplan-Meier and Cox proportional hazards analyses. Disability accumulation over time was depicted using a generalized mixed-effect model. Single-molecule array was used to assess sNfL levels.</p><p><strong>Results: </strong>Homozygous, heterozygous, and non-carriers of the rs10191329 risk variant displayed comparable sNfL levels indicating similar neuroaxonal damage at the time of diagnosis. Importantly, in homozygous carriers we found highest sNfL levels in follow-up visits preceding elevated disease progression later in the disease course, a steeper increase in overall disability measures and higher probability of SPMS development.</p><p><strong>Interpretation: </strong>These findings highlight how genetic variants may serve as new biomarkers for disease progression and can be used for personalized medicine and risk assessment in MS. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142714827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Different Treatment Outcomes of Multiple Sclerosis Patients Receiving Ocrelizumab or Ofatumumab.","authors":"Sven G Meuth, Stephanie Wolff, Anna Mück, Alice Willison, Konstanze Kleinschnitz, Saskia Räuber, Marc Pawlitzki, Franz Felix Konen, Thomas Skripuletz, Matthias Grothe, Tobias Ruck, Hagen B Huttner, Christoph Kleinschnitz, Tobias Bopp, Refik Pul, Bruce A C Cree, Hans-Peter Hartung, Kathrin Möllenhoff, Steffen Pfeuffer","doi":"10.1002/ana.27143","DOIUrl":"https://doi.org/10.1002/ana.27143","url":null,"abstract":"<p><strong>Objective: </strong>B-cell-depletion via CD20 antibodies is a safe and effective treatment for active relapsing multiple sclerosis (RMS). Both ocrelizumab (OCR) and ofatumumab (OFA) have demonstrated efficacy in randomized controlled trials and are approved for treatment of RMS, yet nothing is known on their comparative effectiveness, especially in the real-world setting.</p><p><strong>Methods: </strong>This prospective cohort study includes patients that were started on either OCR or OFA between September 2021 and December 2023. Patients were followed until June 2024 and recruited at 3 large tertiary centers in Germany (Duesseldorf, Essen, and Giessen). Propensity-score-matching was used to address baseline imbalances among patients. Clinical relapses, presence of new or enlarging MRI lesions and 6-month confirmed disability worsening were evaluated. Non-inferiority of OFA compared to OCR was evaluated through comparison of Kaplan-Meier-estimates.</p><p><strong>Results: </strong>A total of 1,138 patients were initially enrolled in the cohort. Following patient selection and propensity-score-matching, 544 OCR and 417 OFA patients were included in the final analysis. In our primary analysis, OFA was non-inferior to OCR in terms of relapses, disability progression, and accrual of MRI lesions. Subgroup analyses confirmed findings in previously naïve and platform-treated patients. Potential differences between OFA and OCR were seen in patients switching from S1P receptor modulators or natalizumab.</p><p><strong>Conclusion: </strong>We here provide comparative data on the effectiveness of OCR and OFA in patients with active RMS. OFA was non-inferior to OCR in the overall cohort. Potential differences observed in patients switching from S1P receptor modulators or natalizumab require further validation. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neurologic Manifestations of Long COVID Disproportionately Affect Young and Middle-Age Adults.","authors":"Natasha A Choudhury, Shreya Mukherjee, Tracey Singer, Aditi Venkatesh, Gina S Perez Giraldo, Millenia Jimenez, Janet Miller, Melissa Lopez, Barbara A Hanson, Aasheeta P Bawa, Ayush Batra, Eric M Liotta, Igor J Koralnik","doi":"10.1002/ana.27128","DOIUrl":"10.1002/ana.27128","url":null,"abstract":"<p><strong>Objective: </strong>To investigate neurologic manifestations of post-acute sequelae of SARS-CoV-2 infection (Neuro-PASC) in post-hospitalization Neuro-PASC (PNP) and non-hospitalized Neuro-PASC (NNP) patients across the adult lifespan.</p><p><strong>Methods: </strong>Cross-sectional study of the first consecutive 200 PNP and 1,100 NNP patients evaluated at a Neuro-coronavirus disease 2019 (COVID-19) clinic between May 2020 and March 2023. Patients were divided into younger (18-44 years), middle-age (45-64 years), and older (65+ years) age groups.</p><p><strong>Results: </strong>Younger and middle-age individuals accounted for 142 of 200 (71%) of PNP and 995 of 1100 (90.5%) of NNP patients. Significant age-related differences in the frequencies of comorbidities and abnormal neurologic findings demonstrated higher prevalence in older patients. Conversely, 10 months from COVID-19 onset, we found significant age-related differences in Neuro-PASC symptoms indicating lower prevalence, and therefore, symptom burden, in older individuals. Moreover, there were significant age-related differences in subjective impression of fatigue (median [interquartile range (IQR)] patient-reported outcomes measurement information system [PROMIS] score: younger 64 [57-69], middle-age 63 [57-68], older 60.5 [50.8-68.3]; p = 0.04) and sleep disturbance (median [IQR] PROMIS score: younger 57 [51-63], middle-age 56 [53-63], older 54 [46.8-58]; p = 0.002) in the NNP group, commensurate with higher impairment in quality of life (QoL) among younger patients. Finally, there were significant age-related differences in objective executive function (median [IQR] National Institutes of Health [NIH] toolbox score: younger 48 [35-63], middle-age 49 [38-63], older 54.5 [45-66.3]; p = 0.01), and working memory (median [IQR] NIH toolbox score: younger 47 [40-53], middle-age 50 [44-57], older 48 [43-58]; p = 0.0002) in NNP patients, with the worst performance coming from the younger group.</p><p><strong>Interpretation: </strong>Younger and middle-age individuals are disproportionally affected by Neuro-PASC regardless of acute COVID-19 severity. Although older people more frequently have abnormal neurologic findings and comorbidities, younger and middle-age patients suffer from a higher burden of Neuro-PASC symptoms and cognitive dysfunction contributing to decreased QoL. Neuro-PASC principally affects adults in their prime, contributing to profound public health and socioeconomic impacts warranting dedicated resources for prevention, diagnosis and interventions. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Soluble Colony Stimulating Factor 1 Receptor (CSF1R) in Peripheral Blood as a Diagnostic Marker of CSF1R-Related Disorder (CSF1R-RD) in a Murine Model and CSF1R-RD Patients.","authors":"Banglian Hu, Yuhang Zhou, Chujun Wu, Naian Xiao, Jianpeng Li, Xin Li, Yanfang Li, Xian Zhang, Xiaohua Huang, Yabin Song, Zhanxiang Wang, Yun-Wu Zhang, Zaiqiang Zhang, Honghua Zheng","doi":"10.1002/ana.27147","DOIUrl":"https://doi.org/10.1002/ana.27147","url":null,"abstract":"<p><p>Mutations in colony stimulating factor 1 receptor (CSF1R) result in CSF1R-related disorder (CSF1R-RD). Our previous study demonstrated a proteolytic generation of a soluble CSF1R (sCSF1R) that could potentially serve as a diagnostic biomarker of CSF1R-RD. Herein, we observed that sCSF1R is released into peripheral serum as a highly glycosylated monomer in Csf1r^+/- mice that mimic the clinical symptoms of CSF1R-RD patients. Notably, we found that serum sCSF1R could distinguish CSF1R-RD cohorts from controls with high accuracy as evaluated by receiver operating characteristic (ROC) curves. This study demonstrates that reduced sCSF1R in serum may serve as a diagnostic biomarker for CSF1R-RD. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142680248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy and Safety of Sodium Oxybate in Isolated Focal Laryngeal Dystonia: A Phase IIb Double-Blind Placebo-Controlled Cross-Over Randomized Clinical Trial.","authors":"Kristina Simonyan, Lena C O'Flynn, Azadeh Hamzehei Sichani, Steven J Frucht, Anna F Rumbach, Nutan Sharma, Phillip C Song, Alexis Worthley","doi":"10.1002/ana.27121","DOIUrl":"https://doi.org/10.1002/ana.27121","url":null,"abstract":"<p><strong>Objective: </strong>To examine the efficacy and safety of sodium oxybate versus placebo in a phase IIb randomized double-blind placebo-controlled 2-period cross-over clinical trial in patients with isolated laryngeal dystonia (LD).</p><p><strong>Methods: </strong>The study was conducted from January 2018 to December 2021, pausing during the COVID-19 pandemic, at Massachusetts Eye and Ear in 106 patients with alcohol-responsive (EtOH+) and alcohol-non-responsive (EtOH-) LD (53 to receive 1.5g of sodium oxybate first, 53 to receive matching placebo first). The primary outcome was a change from baseline in LD symptom severity 40 minutes after drug intake. Safety was based on vital signs, cognitive function, suicidality, daytime sleepiness, and adverse events. Patients, investigators, and outcome assessors were masked to study procedures.</p><p><strong>Results: </strong>Compared to baseline, EtOH+ but not EtOH- patients had a statistically significant improvement in LD symptoms following sodium oxybate versus placebo (EtOH+: 98.75% confidence interval [CI] = 0.6-26.9; p = 0.008; EtOH-: 98.75% CI = -6.2 to 18.7; p = 0.42). Statistically significant minimum drug efficacy in EtOH+ patients was found at ≥16% symptom improvement (OR = 2.09; 98.75% CI = 0.75-5.80; p = 0.036), with an average of 40.81% benefits (98.75% CI = 34.7-48.6). Drug efficacy waned by 300 minutes after intake without a rebound. No changes were found in cognitive function, suicidality, or vital signs. Common adverse events included mild dizziness, nausea, and daytime sleepiness.</p><p><strong>Interpretation: </strong>Sodium oxybate showed clinically meaningful improvement of symptoms in EtOH+ LD patients, with acceptable tolerability. Sodium oxybate offers the first pathophysiologically relevant oral treatment for laryngeal dystonia. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142674623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oropouche Virus: An Emerging Neuroinvasive Arbovirus.","authors":"Daniel M Pastula, J David Beckham, Kenneth L Tyler","doi":"10.1002/ana.27139","DOIUrl":"10.1002/ana.27139","url":null,"abstract":"<p><p>Oropouche virus (OROV) is an arthropod-borne virus (arbovirus) in the Orthobunyavirus genus and Peribunyaviridae viral family that is endemic to parts of South America, Central America, and the Caribbean. It has recently emerged in Cuba, and travel-imported cases are recently being reported in the United States and Europe. Typically maintained in a sylvatic cycle between certain forest sloths, non-human primates, birds, and mosquitoes, OROV disease outbreaks can occur in an urban cycle between certain biting midges and/or mosquitoes and humans. Clinically, approximately 60% of infections are symptomatic with an abrupt fever and non-specific influenza-like illness within 3 to 10 days. Many initial OROV infections can present similarly to chikungunya, dengue, and Zika virus infections. Interestingly, OROV infections can follow a biphasic course with recurrence of symptoms approximately 1 week after initial symptom onset. Concerningly, similar to Zika virus, it appears that vertical transmission of OROV may occur with potentially adverse effects on fetal development including miscarriages. Neuroinvasion of OROV occurs in animal models, and human cases of meningitis, encephalitis, and peri-infectious Guillain-Barré syndrome have all been reported. Diagnosis is either through detection of OROV nucleic acid, OROV immunoglobulin M, or OROV neutralizing antibodies in the serum and/or cerebrospinal fluid. No antiviral treatments are available, and there are no current vaccines. Preventing mosquito and biting midge bites is key. Neurologists should be aware of and report any potential neuroinvasive OROV disease cases to local/state/territorial health departments. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cerebrovascular Function in Sporadic and Genetic Cerebral Small Vessel Disease.","authors":"Michael S Stringer, Gordon W Blair, Anna Kopczak, Danielle Kerkhofs, Michael J Thrippleton, Francesca M Chappell, Susana Muñoz Maniega, Rosalind Brown, Kirsten Shuler, Iona Hamilton, Daniela Jaime Garcia, Fergus N Doubal, Una Clancy, Eleni Sakka, Tetiana Poliakova, Esther Janssen, Marco Duering, Michael Ingrisch, Julie Staals, Walter H Backes, Robert van Oostenbrugge, Geert Jan Biessels, Martin Dichgans, Joanna M Wardlaw","doi":"10.1002/ana.27136","DOIUrl":"https://doi.org/10.1002/ana.27136","url":null,"abstract":"<p><strong>Objective: </strong>Cerebral small vessel diseases (SVDs) are associated with cerebrovascular dysfunction, such as increased blood-brain barrier leakage (permeability surface area product), vascular pulsatility, and decreased cerebrovascular reactivity (CVR). No studies assessed all 3 functions concurrently. We assessed 3 key vascular functions in sporadic and genetic SVD to determine associations with SVD severity, subtype, and interrelations.</p><p><strong>Methods: </strong>In this prospective, cross-sectional, multicenter INVESTIGATE-SVDs study, we acquired brain magnetic resonance imaging in patients with sporadic SVD/cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), including structural, quantitative microstructural, permeability surface area product, blood plasma volume fraction, vascular pulsatility, and CVR (in response to CO₂) scans. We determined vascular function and white matter hyperintensity (WMH) associations, using covariate-adjusted linear regression; normal-appearing white matter and WMH differences, interrelationships between vascular functions, using linear mixed models; and major sources of variance using principal component analyses.</p><p><strong>Results: </strong>We recruited 77 patients (45 sporadic/32 CADASIL) at 3 sites. In adjusted analyses, patients with worse WMH had lower CVR (B = -1.78, 95% CI -3.30, -0.27) and blood plasma volume fraction (B = -0.594, 95% CI -0.987, -0.202). CVR was worse in WMH than normal-appearing white matter (eg, CVR: B = -0.048, 95% CI -0.079, -0.017). Adjusting for WMH severity, SVD subtype had minimal influence on vascular function (eg, CVR in CADASIL vs sporadic: B = 0.0169, 95% CI -0.0247, 0.0584). Different vascular function mechanisms were not generally interrelated (eg, permeability surface area product~CVR: B = -0.85, 95% CI -4.72, 3.02). Principal component analyses identified WMH volume/quantitative microstructural metrics explained most variance in CADASIL and arterial pulsatility in sporadic SVD, but similar main variance sources.</p><p><strong>Interpretation: </strong>Vascular function was worse with higher WMH, and in WMH than normal-appearing white matter. Sporadic SVD-CADASIL differences largely reflect disease severity. Limited vascular function interrelations may suggest disease stage-specific differences. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Micro-Doses of DNP Preserve Motor and Muscle Function with a Period of Functional Recovery in Amyotrophic Lateral Sclerosis Mice.","authors":"Renjia Zhong, Demi L A Dionela, Nina Haeyeon Kim, Erin N Harris, John G Geisler, Lan Wei-LaPierre","doi":"10.1002/ana.27140","DOIUrl":"https://doi.org/10.1002/ana.27140","url":null,"abstract":"<p><strong>Objective: </strong>Mitochondrial dysfunction is one of the earliest pathological events observed in amyotrophic lateral sclerosis (ALS). The aim of this study is to evaluate the therapeutic efficacy of 2,4-dinitrophenol (DNP), a mild mitochondrial uncoupler, in an ALS mouse model to provide preclinical proof-of-concept evidence of using DNP as a potential therapeutic drug for ALS.</p><p><strong>Methods: </strong>hSOD1^G93A mice were treated with 0.5-1.0 mg/kg DNP through daily oral gavage from presymptomatic stage or disease onset until 18 weeks old. Longitudinal behavioral studies were performed weekly or biweekly from 6 to 18 weeks old. In situ muscle contraction measurements in extensor digitorum longus muscles were conducted to evaluate the preservation of contractile force and motor unit numbers in hSOD1^G93A mice following DNP treatment. Muscle innervation and inflammatory markers were assessed using immunostaining. Extent of protein oxidation and activation of Akt pathway were also examined.</p><p><strong>Results: </strong>DNP delayed disease onset; improved motor coordination and muscle performance in vivo; preserved muscle contractile function, neuromuscular junction morphology, and muscle innervation; and reduced inflammation and protein oxidation at 18 weeks old in hSOD1^G93A mice. Strikingly, symptomatic hSOD1^G93A mice exhibited a period of recovery in running ability at 20 cm/s several weeks after 2,4-dinitrophenol treatment started at disease onset, offering the first observation in disease phenotype reversal using a small molecule.</p><p><strong>Interpretation: </strong>Our results strongly support that micro-dose DNP may be used as a potential novel treatment for ALS patients, with a possibility for recovery, when used at optimal doses and time of intervention. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elevated Cerebrospinal Fluid Ubiquitin Carboxyl-Terminal Hydrolase Isozyme L1 in Asymptomatic C9orf72 Hexanucleotide Repeat Expansion Carriers.","authors":"Elizabeth R Dellar, Iolanda Vendrell, Benazir Amein, David G Lester, Evan C Edmond, Katie Yoganathan, Thanuja Dharmadasa, Aitana Sogorb-Esteve, Roman Fischer, Kevin Talbot, Jonathan D Rohrer, Martin R Turner, Alexander G Thompson","doi":"10.1002/ana.27133","DOIUrl":"https://doi.org/10.1002/ana.27133","url":null,"abstract":"<p><strong>Objective: </strong>To identify biochemical changes in individuals at higher risk of developing amyotrophic lateral sclerosis (ALS) or frontotemporal dementia (FTD) via C9orf72 hexanucleotide repeat expansion (HRE) heterozygosity.</p><p><strong>Methods: </strong>Cross-sectional observational study of 48 asymptomatic C9orf72 HRE carriers, 39 asymptomatic non-carrier controls, 19 people with sporadic ALS, 10 with C9orf72 ALS, 14 with sporadic FTD, and 10 with C9orf72 FTD. Relative abundance of 30 pre-defined cerebrospinal fluid biomarkers of ALS and FTD were compared in asymptomatic C9orf72 HRE carriers and age-matched non-carrier controls. Differential abundance of these proteins was quantified using data independent acquisition mass spectrometry or electro chemiluminescent assay for neurofilament light chain. Unbiased analysis of the entire cerebrospinal fluid proteome was then carried out.</p><p><strong>Results: </strong>Ubiquitin carboxyl-hydrolase isozyme L1 levels were higher in asymptomatic C9orf72 HRE carriers compared with age-matched non-carriers (log₂fold change 0.20, FDR-adjusted p-value = 0.034), whereas neurofilament light chain levels did not significantly differ. Ubiquitin carboxyl-hydrolase isozyme L1 levels remained elevated after matching of groups by neurofilament levels (p = 0.011), and after adjusting for age, sex, and neurofilament levels. A significant difference was also observed when restricting analysis to younger participants (<37) matched by neurofilament level (p = 0.007).</p><p><strong>Interpretation: </strong>Elevated cerebrospinal fluid ubiquitin carboxyl-hydrolase isozyme L1 levels in C9orf72 HRE carriers can occur in the absence of increased neurofilament levels, potentially reflecting either compensatory or pathogenic mechanisms preceding rapid neuronal loss. This brings forward the window on changes associated with the C9orf72 HRE carrier state, with potential to inform understanding of penetrance and approaches to prevention. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142643518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sex-Specific Vulnerabilities to Subclinical Vascular Brain Injury in Early Late-Life: The Framingham Heart Study.","authors":"Wai-Ying Wendy Yau, Matthew R Scott, Rodica E Petrea, Rachel F Buckley, Daniel Kojis, Reisa A Sperling, Jasmeer P Chhatwal, Pauline Maillard, Hugo J Aparicio, Jose Rafael Romero, Charles S DeCarli, Alexa S Beiser, Sudha Seshadri","doi":"10.1002/ana.27135","DOIUrl":"https://doi.org/10.1002/ana.27135","url":null,"abstract":"<p><strong>Objective: </strong>Subclinical vascular brain injury is an increasingly recognized risk factor for stroke and dementia. Despite well-established sex differences in vascular risk and disease prevalence, the impact of sex on drivers of subclinical vascular brain injury remains unclear, presenting a barrier to developing sex-specific prevention guidelines. We aimed to establish the extent to which sex moderates associations between vascular risk factors and magnetic resonance imaging (MRI) measures of subclinical brain injury in stroke-free older adults.</p><p><strong>Methods: </strong>We leveraged cross-sectional data from 1,579 stroke- and dementia-free Framingham Heart Study Offspring participants at exam 8 (age 65.7 ± 8.8 years, 53% women). Vascular risks were assessed using components of the Framingham Stroke Risk Profile (FSRP) and diastolic blood pressure (DBP). White matter hyperintensity volume (WMH), total cerebral brain volume (TBV), and covert brain infarcts were quantified using MRI. We examined whether vascular risk factors were associated with MRI measures across the combined cohort, and then determined whether sex modified these associations.</p><p><strong>Results: </strong>Higher FSRP and specifically systolic blood pressure (SBP) were associated with greater WMH. These associations were stronger in women and remained after adjusting for menopause age and hormone therapy use. By contrast, diabetes and lower DBP were associated with smaller TBV primarily in men. The DBP-atrophy relationship was only observed in men with declining DBP or prior hypertension.</p><p><strong>Interpretation: </strong>Our findings highlight differential vulnerability to the impact of vascular risk factors on white matter health in women and global atrophy in men, supporting the development of sex-specific guidelines to better preserve vascular brain health in aging. ANN NEUROL 2024.</p>","PeriodicalId":127,"journal":{"name":"Annals of Neurology","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}