Article
Clinical Neurology
Melanie A. Matyi, Jeffrey M. Spielberg
Summary: Deficits in negative emotion differentiation are associated with mental health outcomes, but the processes underlying individual differences in negative emotion differentiation are poorly understood. This study examines the relationship between white matter microstructure and negative emotion differentiation, providing insights into its component processes and its link to brain structure.
JOURNAL OF AFFECTIVE DISORDERS
(2023)
Article
Neuroimaging
Haoxiang Jiang, Heng Liu, Tingting Huang, Liang Wu, Fan Wu, Congcong Liu, Miaomiao Wang, Chao Jin, Jian Yang, Xianjun Li
Summary: Periventricular white matter injury (PWMI) is a common cause of spastic cerebral palsy (SCP). Diffusion tensor imaging (DTI) can effectively predict SCP in PWMI infants, with the combined node efficiency of specific brain regions showing high sensitivity and specificity in differentiation.
BRAIN IMAGING AND BEHAVIOR
(2021)
Article
Neurosciences
Nick Teller, Jordan A. Chad, Alexander Wong, Hayden Gunraj, Xiang Ji, Maged Goubran, Asaf Gilboa, Eugenie Roudaia, Allison Sekuler, Nathan Churchill, Tom Schweizer, Fuqiang Gao, Mario Masellis, Benjamin Lam, Chris Heyn, Ivy Cheng, Robert Fowler, Sandra E. Black, Bradley J. MacIntosh, Simon J. Graham, J. Jean Chen
Summary: By comparing simulation and experimental data, it is found that correlated diffusion imaging method performs better in detecting the effect of COVID-19, which reveals less restricted diffusion in the frontal lobe and more restricted diffusion in the cerebellar white matter in patients, consistent with existing studies.
HUMAN BRAIN MAPPING
(2023)
Article
Clinical Neurology
Letizia Squarcina, Susanna Lucini Paioni, Marcella Bellani, Maria Gloria Rossetti, Josselin Houenou, Mircea Polosan, Mary L. Phillips, Michele Wessa, Paolo Brambilla
Summary: In this study, the state of white matter structures in bipolar disorder patients was investigated using TBSS and FD analyses. The results showed diffusion abnormalities primarily located in the temporo-parietal network, while no significant differences were found in the morphological complexity of white matter structures. Individual patients showed localized significant deviations in fractal dimension values.
JOURNAL OF AFFECTIVE DISORDERS
(2024)
Article
Neurosciences
Natalia Del Campo, Owen Phillips, Francoise Ory-Magne, Christine Brefel-Courbon, Monique Galitzky, Claire Thalamas, Katherine L. Narr, Shantanu Joshi, Manpreet K. Singh, Patrice Peran, Anne Pavy-LeTraon, Olivier Rascol
Summary: Multiple system atrophy (MSA) is a rare neurodegenerative disorder characterized by widespread accumulation of alpha-synuclein, primarily in oligodendrocytes. Whole brain deep and superficial white matter diffusivity abnormalities were observed in MSA patients but not in Parkinson's disease (PD) patients. These abnormalities were associated with motor and cognitive functions in MSA patients.
HUMAN BRAIN MAPPING
(2021)
Article
Clinical Neurology
Si-ping Luo, Fan-fan Chen, Han-wen Zhang, Fan Lin, Guo-dong Huang, Yi Lei
Summary: This study used DSI to quantitatively study the changes in the trigeminal cistern segment in patients with TN and found significant reductions in quantitative parameters on the affected side compared to the unaffected side. DSI, with its high-resolution fiber tracking technology, can provide valuable information about the integrity of trigeminal white matter in TN patients.
FRONTIERS IN NEUROLOGY
(2022)
Article
Geriatrics & Gerontology
Stephanie Matijevic, Lee Ryan
Summary: The study found that age and sex have an impact on the cerebral white matter integrity of older adults, with a more significant effect on certain white matter tracts. Females exhibited lower global FA compared to males, but had higher MD in the anterior cingulum and superior longitudinal fasciculus. Age influenced both global FA and specific tract FA, while APOE epsilon 4 status did not show predictive power.
FRONTIERS IN AGING NEUROSCIENCE
(2021)
Article
Anatomy & Morphology
Tory O. Frizzell, Elisha Phull, Mishaa Khan, Xiaowei Song, Lukas A. Grajauskas, Jodie Gawryluk, Ryan C. N. D'Arcy
Summary: This study evaluated white matter neuroplasticity in healthy adults pre-post motor training, specifically focusing on motor learning in the non-dominant hand. Changes in neuroplasticity were observed in the internal capsule and corpus callosum, with significant amplitude reductions in low-frequency oscillations implicating optimized transmission through altered myelination. The findings open new avenues for white matter investigations and advance MRI clinical applications.
BRAIN STRUCTURE & FUNCTION
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Zexuan Hu, Peng Sun, Ajit George, Xiangling Zeng, Mengyan Li, Tsen-Hsuan Lin, Zezhong Ye, Xinhua Wei, Xinqing Jiang, Sheng-Kwei Song, Ruimeng Yang
Summary: Using diffusion basis spectrum imaging (DBSI) to examine the microstructural changes in the substantia nigra (SN) and global white matter (WM) tracts of patients with early-stage PD. The results showed that DBSI could potentially detect and quantify inflammatory cell infiltration, fiber/dendrite loss, and edema in both SN and WM tracts in patients with early-stage PD.
EUROPEAN RADIOLOGY
(2023)
Article
Neurosciences
Fan Guo, Tian Zhang, Chen Wang, Ziliang Xu, Yingjuan Chang, Minwen Zheng, Peng Fang, Yuanqiang Zhu
Summary: This study used diffusion tensor imaging (DTI) to identify brain structural network differences contributing to individual differences in vulnerability to sleep deprivation (SD). The vulnerable group showed lower global efficiency, network strength, and local efficiency, as well as longer shortest path length. A disrupted subnetwork with widespread connections was observed in the vulnerable group. The strength of rich club connectivity was negatively correlated with performance on the psychomotor vigilance task (PVT).
CNS NEUROSCIENCE & THERAPEUTICS
(2023)
Article
Computer Science, Interdisciplinary Applications
Temesgen Bihonegn, Sumit Kaushik, Avinash Bansal, Lubomir Vojtisek, Jan Slovak
Summary: The study aims to enhance the effectiveness of geodesic ray-tracing method in white matter fiber reconstruction by adjusting metrics on diffusion tensor spaces. By choosing appropriate metrics, enhancing robustness, and utilizing fourth order tensor data, more satisfactory results are achieved in white matter tract construction.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Neurosciences
David K. Wright, Georgia F. Symons, William T. O'Brien, Stuart J. McDonald, Akram Zamani, Brendan Major, Zhibin Chen, Daniel Costello, Rhys D. Brady, Mujun Sun, Meng Law, Terence J. O'Brien, Richelle Mychasiuk, Sandy R. Shultz
Summary: The preliminary study showed that male athletes with SRC reported more severe symptoms compared to female athletes. dMRI revealed white matter differences between SRC athletes and non-concussed athletes at 48 hours post-injury, which persisted at 2 weeks post-injury. Furthermore, male SRC athletes exhibited significantly greater white matter disruption than female SRC athletes. These findings have implications for concussion management, including return-to-play decisions, and enhance our understanding of the role of sex in SRC outcomes.
Article
Neurosciences
Yuchao Jiang, Mingjun Duan, Xiangkui Li, Huan Huang, Guocheng Zhao, Xuan Li, Shicai Li, Xufeng Song, Hui He, Dezhong Yao, Cheng Luo
Summary: This study reveals a reversed pattern of structure and function in frontotemporal tracts in schizophrenia, with negative associations between structural deficits and functional disturbances in patients, exacerbated by long illness duration and severe negative symptoms. Additionally, white matter activations are significantly related to cognition and emotion.
HUMAN BRAIN MAPPING
(2021)
Article
Cell Biology
Yun-Qing Luo, Rong-Bin Liang, San-Hua Xu, Yi-Cong Pan, Qiu-Yu Li, Hui-Ye Shu, Min Kang, Pin Yin, Li-Juan Zhang, Yi Shao
Summary: This study investigated regional changes in brain white matter in dry eye patients using DTI and NODDI. The results showed significant differences in FA, MD, and ODI between dry eye patients and healthy controls, suggesting potential pathological mechanisms underlying dry eye.
Article
Clinical Neurology
Zhi-gang Min, Hai-rong Shan, Long Xu, Dai-hai Yuan, Xue-xia Sheng, Wen-chao Xie, Ming Zhang, Chen Niu, Tahir Mehmood Shakir, Zhi-hong Cao
Summary: Research suggests that distinct pathological processes can be identified between frontal periventricular WMH and other regions, indicating potential severe demyelination effects within the frontal periventricular WMH.
Article
Clinical Neurology
Jonathan Voeglein, Nicolai Franzmeier, John C. Morris, Marianne Dieterich, Eric McDade, Mikael Simons, Oliver Preische, Anna Hofmann, Jason Hassenstab, Tammie L. Benzinger, Anne Fagan, James M. Noble, Sarah B. Berman, Neill R. Graff-Radford, Bernardino Ghetti, Martin R. Farlow, Jasmeer P. Chhatwal, Stephen Salloway, Chengjie Xiong, Celeste M. Karch, Nigel Cairns, Richard J. Perrin, Gregory Day, Ralph Martins, Raquel Sanchez-Valle, Hiroshi Mori, Hiroyuki Shimada, Takeshi Ikeuchi, Kazushi Suzuki, Peter R. Schofield, Colin L. Masters, Alison Goate, Virginia Buckles, Nick C. Fox, Patricio Chrem, Ricardo Allegri, John M. Ringman, Igor Yakushev, Christoph Laske, Mathias Jucker, Gunter Hoglinger, Randall J. Bateman, Adrian Danek, Johannes Levin
Summary: Autosomal dominant Alzheimer's disease (ADAD) has distinct neurological examination findings that are useful for estimating prognosis and guiding clinical care and therapeutic trial designs.
ALZHEIMERS & DEMENTIA
(2023)
Article
Clinical Neurology
Pratishtha Chatterjee, Lisa Vermunt, Brian A. Gordon, Steve Pedrini, Lynn Boonkamp, Nicola J. Armstrong, Chengjie Xiong, Abhay K. Singh, Yan Li, Hamid R. Sohrabi, Kevin Taddei, Mark Molloy, Tammie L. S. Benzinger, John C. Morris, Celeste Karch, Sarah Berman, Jasmeer Chhatwal, Carlos Cruchaga, Neill R. Graff-Radford, Gregory S. Day, Martin Farlow, Nick Fox, Alison Goate, Jason Hassenstab, Jae-Hong Lee, Johannes Levin, Eric McDade, Hiroshi Mori, Richard Perrin, Raquel Sanchez-Valle, Peter R. Schofield, Allan Levey, Mathias Jucker, Colin L. Masters, Anne M. Fagan, Randall J. Bateman, Ralph N. Martins, Charlotte Teunissen
Summary: This study found that plasma GFAP levels increase a decade before symptom onset in AD and are associated with Aβ load, neurodegeneration, and cognitive decline.
ALZHEIMERS & DEMENTIA
(2023)
Article
Clinical Neurology
Chengjie Xiong, Lena M. McCue, Virginia Buckles, Elizabeth Grant, Folasade Agboola, Dean Coble, Randall J. Bateman, Anne M. Fagan, Tammie L. S. Benzinger, Jason Hassenstab, Suzanne E. Schindler, Eric McDade, Krista Moulder, Brian A. Gordon, Carlos Cruchaga, Gregory S. Day, Takeshi Ikeuchi, Kazushi Suzuki, Ricardo F. Allegri, Jonathan Voeglein, Johannes Levin, John C. Morris
Summary: This study compared biomarkers of late-onset Alzheimer's disease (LOAD) and autosomal dominant AD (ADAD). The results showed that at baseline, ADAD mutation carriers (MCs) had lower CSF A beta 42 levels and higher levels of total and phosphorylated tau-181, and PiB uptake compared to LOAD participants with a positive family history (FH+). Longitudinally, MCs had a similar increase in PiB uptake to FH+, but a much faster decline in hippocampal volume, and were the only group showing cognitive decline.
ALZHEIMERS & DEMENTIA
(2023)
Letter
Clinical Neurology
P. M. Cogswell, C. R. Jack Jr, J. A. Barakos, F. Barkhof, T. S. Benzinger, C. A. Raji, T. Y. Poussaint, V. K. Ramanan, C. T. Whitlow
AMERICAN JOURNAL OF NEURORADIOLOGY
(2023)
Article
Clinical Neurology
Julie K. Wisch, Omar H. Butt, Brian A. Gordon, Suzanne E. Schindler, Anne M. Fagan, Rachel L. Henson, Chengran Yang, Anna H. Boerwinkle, Tammie L. S. Benzinger, David M. Holtzman, John C. Morris, Carlos Cruchaga, Beau M. Ances
Summary: Heterogeneity in progression to Alzheimer's disease poses challenges for prognosis and clinical trials. By analyzing CSF proteomics, researchers identified early differences in biomarkers and assessed patterns of preclinical AD development. These findings have important implications for participant selection and potential therapies in clinical trials.
Letter
Clinical Neurology
Antoinette O'Connor, Helen Rice, Josephine Barnes, Natalie S. Ryan, Kathy Y. Liu, Ricardo Francisco Allegri, Sarah Berman, John M. Ringman, Carlos Cruchaga, Martin R. Farlow, Jason Hassenstab, Jae-Hong Lee, Richard J. Perrin, Chengjie Xiong, Brian Gordon, Allan Levey, Alison Goate, Neil Graff-Radford, Johannes Levin, Mathias Jucker, Tammie Benzinger, Eric McDade, Hiroshi Mori, James M. Noble, Peter R. Schofield, Ralph N. Martins, Stephen Salloway, Jasmeer Chhatwal, John C. Morris, Randall Bateman, Rob Howard, Suzanne Reeves, Nick C. Fox
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
(2023)
Article
Clinical Neurology
Ganesh M. Babulal, Ling Chen, David B. Carr, Ann M. Johnson, Joshua S. Shimony, Jason Doherty, Samantha Murphy, Alexis Walker, Hailee Domash, Russ Hornbeck, Sarah Keefe, Shaney Flores, Cyrus A. Raji, John C. Morris, Beau M. Ances, Tammie L. S. Benzinger
Summary: This study found that older drivers with mild or moderate cortical atrophy and aging-related changes experienced a decrease in the number of monthly trips, particularly within a one-to-five-mile range from their residence, over a two-and-a-half-year period. Drivers with cerebral small vessel disease (CSVD) showed a larger reduction in daily driving behaviors compared to those without CSVD, indicating it as an early neurobehavioral marker for functional decline. The findings suggest that magnetic resonance imaging can be used to identify high-risk elderly drivers to ensure driving safety and community mobility.
JOURNAL OF THE NEUROLOGICAL SCIENCES
(2023)
Article
Clinical Neurology
Jingqin Luo, Yinjiao Ma, Folasade Jane Agboola, Elizabeth C. Grant, John Morris, Eric M. McDade, Anne Fagan, Tammie L. S. Benzinger, Jason J. Hassenstab, Randall J. Bateman, Richard A. Perrin, Brian Gordon, Manu F. Goyal, Jeremy Strain, Igor S. Yakushev, Gregory Day, Chengjie Xiong
Summary: White matter hyperintensities (WMH) are correlated with Alzheimer disease (AD) biomarkers and modulate AD pathogenesis. This study analyzed the longitudinal data of WMH volume and established AD biomarkers in cognitively normal individuals. The results showed that longitudinal increases in WMH volume were associated with changes in PET amyloid uptake, MRI structural outcomes, and cognition. The inflection point of baseline age in WMH volume was identified at 60.46 years.
Article
Cell Biology
Aura L. Ferreiro, JooHee Choi, Jian Ryou, Erin P. Newcomer, Regina Thompson, Rebecca M. Bollinger, Carla Hall-Moore, I. Malick Ndao, Laurie Sax, Tammie L. S. Benzinger, Susan L. Stark, David M. Holtzman, Anne M. Fagan, Suzanne E. Schindler, Carlos Cruchaga, Omar H. Butt, John C. Morris, Phillip I. Tarr, Beau M. Ances, Gautam Dantas
Summary: The gut microbiome of symptomatic patients with Alzheimer's disease (AD) has an altered composition compared to healthy individuals. However, little is known about changes in the gut microbiome before the onset of symptomatic AD. In this study, researchers compared the gut microbiome of cognitively normal individuals with and without biomarker evidence of early preclinical AD. They found distinct differences in the gut microbial composition and identified specific bacterial taxa associated with preclinical AD. These findings may improve our understanding of AD and help identify gut-derived markers of AD risk.
SCIENCE TRANSLATIONAL MEDICINE
(2023)
Article
Clinical Neurology
Matthew R. Brier, Zhuocheng Li, Maria Ly, Helmet T. Karim, Leda Liang, Weixin Du, John E. McCarthy, Anne H. Cross, Tammie L. S. Benzinger, Robert T. Naismith, Salim Chahin
Summary: Brain age, quantified using machine learning applied to structural MRI, is a clinically relevant biomarker that correlates with and predicts increasing disability in patients with multiple sclerosis (MS).
ANNALS OF CLINICAL AND TRANSLATIONAL NEUROLOGY
(2023)
Article
Cell Biology
Nicolas R. Barthelemy, Benjamin Saef, Yan Li, Brian A. Gordon, Yingxin He, Kanta Horie, Erik Stomrud, Gemma Salvado, Shorena Janelidze, Chihiro Sato, Vitaliy Ovod, Rachel L. Henson, Anne M. Fagan, Tammie L. S. Benzinger, Chengjie Xiong, John C. Morris, Oskar Hansson, Randall J. Bateman, Suzanne E. Schindler
Summary: CSF tau phosphorylation at T217 and T205 sites is a better marker for Alzheimer's disease pathology than current tests.
Article
Chemistry, Medicinal
Lin Qiu, Hao Jiang, Charles Zhou, Jinzhi Wang, Yanbo Yu, Haiyang Zhao, Tianyu Huang, Robert Gropler, Joel S. Perlmutter, Tammie L. S. Benzinger, Zhude Tu
Summary: This study reported the design, synthesis, and evaluation of novel F-18 S1PR1 radioligands. Compound 6h showed high selectivity and potency for S1PR1 and exhibited favorable brain washout pharmacokinetics in PET study. [18F]6h is a promising radioligand for imaging S1PR1 and worthy of further clinical investigation in brain disorders.
JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Cell Biology
Jinbin Xu, Huifangjie L. Farsad, Yiran Hou, Kia Barclay, Ben Anthony Lopez, Shinnosuke Yamada, Ibrahim Olabayode Saliu, Yiming Shi, William C. Knight, Randall J. Bateman, Tammie L. S. Benzinger, Jason J. Yi, Qingyun Li, Ting Wang, Joel S. Perlmutter, John C. Morris, Guoyan Zhao
Summary: Zhao et al. discovered evolutionarily conserved astrocyte and microglia subpopulations shared across multiple brain regions, revealing similarities and differences in AD and PD glia and regional variance linked to AD pathology and neurodegeneration. Their analysis identified commonalities between AD and PD astrocytes and unique transcriptomic changes in microglia for each disorder. They also delineated undescribed subpopulations of medium spiny neurons (MSNs) and provided neuronal transcriptomic profiles suggesting disease-specific changes and selective vulnerability.
Article
Clinical Neurology
Julie K. Wisch, Brian A. Gordon, Anna H. Boerwinkle, Patrick H. Luckett, James G. Bollinger, Vitaliy Ovod, Yan Li, Rachel L. Henson, Tim West, Mathew R. Meyer, Kristopher M. Kirmess, Tammie L. S. Benzinger, Anne M. Fagan, John C. Morris, Randall J. Bateman, Beau M. Ances, Suzanne E. Schindler
Summary: This study investigated whether cerebrospinal fluid (CSF) and plasma levels of amyloid beta (A13)42/A1340 could predict continuous values for amyloid positron emission tomography (PET) burden. The results showed that CSF A1342/A1340 predicted a wider range of amyloid plaque burden and may be useful in staging Alzheimer's disease (AD).
ALZHEIMER'S & DEMENTIA: DIAGNOSIS, ASSESSMENT & DISEASE MONITORING
(2023)
Article
Clinical Neurology
Anna H. Boerwinkle, Brian A. Gordon, Julie Wisch, Shaney Flores, Rachel L. Henson, Omar H. Butt, Nicole McKay, Charles D. Chen, Tammie L. S. Benzinger, Anne M. Fagan, Benjamin L. Handen, Bradley T. Christian, Elizabeth Head, Mark Mapstone, Michael S. Rafii, Sid O'Bryant, Florence Lai, H. Diana Rosas, Joseph H. Lee, Wayne Silverman, Adam M. Brickman, Jasmeer P. Chhatwal, Carlos Cruchaga, Richard J. Perrin, Chengjie Xiong, Jason Hassenstab, Eric McDade, Randall J. Bateman, Beau M. Ances
Summary: Studying the timing and spatial distribution of amyloid accumulation in individuals with autosomal dominant Alzheimer's disease and Down syndrome can provide important insights into the early pathogenesis of Alzheimer's disease.
Article
Geriatrics & Gerontology
Sarah N. Kraeutner, Cristina Rubino, Jennifer K. Ferris, Shie Rinat, Lauren Penko, Larissa Chiu, Brian Greeley, Christina B. Jones, Beverley C. Larssen, Lara A. Boyd
Summary: This study examined the age-related changes in brain function and baseline brain structure that support motor skill acquisition. The findings showed that older adults experienced decreases in functional connectivity during motor skill acquisition, while younger adults experienced increases. Additionally, regardless of age group, lower baseline microstructure in a frontoparietal tract was associated with slower motor skill acquisition.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Karen Nuytemans, Farid Rajabli, Melissa Jean-Francois, Jiji Thulaseedhara Kurup, Larry D. Adams, Takiyah D. Starks, Patrice L. Whitehead, Brian W. Kunkle, Allison Caban-Holt, Jonathan L. Haines, Michael L. Cuccaro, Jeffery M. Vance, Goldie S. Byrd, Gary W. Beecham, Christiane Reitz, Margaret A. Pericak-Vance
Summary: This study conducted genetic research on African American AD families and identified a significant linkage signal associated with AD, highlighting the importance of diverse population-level genetic data in understanding the genetic determinants of AD.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Kazuya Suwabe, Ryuta Kuwamizu, Kazuki Hyodo, Toru Yoshikawa, Takeshi Otsuki, Asako Zempo-Miyaki, Michael A. Yassa, Hideaki Soya
Summary: Physical exercise has a positive impact on hippocampal memory decline with aging. Recent studies have shown that even light exercise can improve memory and this improvement is mediated by the ascending arousal system. This study aimed to investigate the effects of light-intensity exercise on hippocampal memory function in healthy older adults and found that pupil dilation during exercise played a role in the memory improvement.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Ajay Sood, Ana Werneck Capuano, Robert Smith Wilson, Lisa Laverne Barnes, Alifiya Kapasi, David Alan Bennett, Zoe Arvanitakis
Summary: The objective of this study was to explore the impact of metformin on cognition and brain pathology. The results showed that metformin users had slower decline in global cognition, episodic memory, and semantic memory compared to non-users. However, the relationship between metformin use and certain brain pathology remains uncertain.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Brian N. Lee, Junwen Wang, Molly A. Hall, Dokyoon Kim, Shana D. Stites, Li Shen
Summary: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by memory and functional impairments. This study analyzed participants from the Alzheimer's Disease Neuroimaging Initiative and found differential associations between cerebral spinal fluid (CSF)/neuroimaging biomarkers and cognitive/functional outcomes, as well as variations between sexes. These findings suggest that sex differences may play a role in the development of AD.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Madeline R. Hale, Rebecca Langhough, Lianlian Du, Bruce P. Hermann, Carol A. Van Hulle, Margherita Carboni, Gwendlyn Kollmorgenj, Kristin E. Basche, Davide Bruno, Leah Sanson-Miles, Erin M. Jonaitis, Nathaniel A. Chin, Ozioma C. Okonkwo, Barbara B. Bendlin, Cynthia M. Carlsson, Henrik Zetterberg, Kaj Blennow, Tobey J. Betthauser, Sterling C. Johnson, Kimberly D. Mueller
Summary: This study demonstrates a relationship between cerebrospinal fluid biomarkers and the ability to recall proper names in the preclinical phase of Alzheimer's disease.
NEUROBIOLOGY OF AGING
(2024)
Article
Geriatrics & Gerontology
Thomas T. Austin, Christian L. Thomas, Ben Warren
Summary: This study investigated the effects of age on the robustness and resilience of auditory system using the desert locust. The researchers found that gene expression changes were mainly influenced by age rather than noise exposure. Both young and aged locusts were able to recover their auditory nerve function within 48 hours of noise exposure, but the recovery of transduction current magnitude was impaired in aged locusts. Key genes responsible for robustness to noise exposure in young locusts and potential candidates for compensatory mechanisms in auditory neurons of aged locusts were identified.
NEUROBIOLOGY OF AGING
(2024)