Article
Medicine, General & Internal
Jie Guo, Abigail Dove, Jiao Wang, Erika J. Laukka, Ingrid Ekstrom, Michelle M. Dunk, David A. Bennett, Weili Xu
Summary: The pattern of olfactory identification change in the early phases of dementing disorders is unclear. This study assessed olfactory identification trajectories preceding incident mild cognitive impairment (MCI) and dementia and found that olfactory identification declined faster preceding dementia disorders, with Alzheimer's pathology potentially underlying these faster declines.
Article
Neurosciences
Anthony N. Correro, Kathryn Gauthreaux, Jaime Perales-Puchalt, Yen-Chi Chen, Kwun C. G. Chan, Walter A. Kukull, Jason D. Flatt
Summary: This study explored the cognitive decline and dementia outcomes among same-sex and mixed-sex couples. The results showed that both groups experienced cognitive decline regardless of baseline diagnosis. Generally, there were no statistically significant differences between the same-sex and mixed-sex groups in terms of functioning, dementia severity, or neuropsychological testing, except for two exceptions. Participants with mild cognitive impairment in same-sex relationships showed less functional impairment at baseline, while the same-sex group with dementia had a slower decline in attention/working memory. Therefore, there were no cognitive health disparities among same-sex couples consistent with a minority stress model. Further research on protective factors is needed.
JOURNAL OF ALZHEIMERS DISEASE
(2023)
Review
Biochemistry & Molecular Biology
Kyoungjoo Cho
Summary: Cognitive impairment is a serious condition associated with aging and disruption of inflammation and innate immunity. Recent studies have shown that the innate immune system is prevalent in patients with Alzheimer's disease, and peripheral neutrophil markers can predict a decline in cognitive function in patients with mild cognitive impairment. Furthermore, altered levels of pro-inflammatory interleukins have been reported in patients with mild cognitive impairment, potentially playing a role in the progression from early cognitive impairment to dementia.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Clinical Neurology
Lei Zhuang, Yan Yang, Jianqun Gao
Summary: Mild cognitive impairment (MCI) is a clinical condition with a high risk of progressing to dementia. Early diagnosis and intervention at the MCI stage are considered critical strategies in disease management. Lack of consensus on guidelines for routine screening of MCI leads to a considerable number of undiagnosed patients in the community.
JOURNAL OF NEUROLOGY
(2021)
Article
Clinical Neurology
Benjamin M. Hampstead, Anthony Y. Stringer, Alexandru D. Iordan, Robert Ploutz-Snyder, K. Sathian
Summary: Cognitive training is a potential technique for treating cognitive impairment caused by neurological injury and disease. Different training methods have different mechanisms of action and engage distinct brain regions. Mnemonic strategy training (MST) showed superior effects in the short term and increased activation and functional connectivity in multiple brain regions.
ALZHEIMERS & DEMENTIA
(2023)
Article
Medicine, General & Internal
Camilla Elefante, Giulio Emilio Brancati, Zahinoor Ismail, Sara Ricciardulli, Maria Francesca Beatino, Vittoria Lepri, Antonella Fama, Elisabetta Ferrari, Linda Giampietri, Filippo Baldacci, Roberto Ceravolo, Icro Maremmani, Lorenzo Lattanzi, Giulio Perugi
Summary: This study aimed to investigate the prevalence and differentiating features of Mild Behavioral Impairment (MBI) with respect to major neurocognitive disorders (MNDs) and primary psychiatric disorders (PPDs). The results showed that patients with MBI had higher scores of psychopathology, specifically in terms of negative symptoms, compared to patients with PPDs. Additionally, MBI patients frequently reported higher severity of apathy and motor retardation.
JOURNAL OF CLINICAL MEDICINE
(2023)
Review
Public, Environmental & Occupational Health
Jui-Hung Hsu, Chien-Cheng Liu, I-Wen Chen, Jheng-Yan Wu, Po-Yu Huang, Ting-Hui Liu, Kuo-Chuan Hung
Summary: The visual cognitive assessment test (VCAT) is a language-neutral screening tool for detecting MCI/mild dementia. This meta-analysis showed that VCAT demonstrated acceptable diagnostic accuracy in distinguishing MCI/mild dementia in cognitively normal older adults.
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Clinical Neurology
Xiwu Wang, Teng Ye, Wenjun Zhou, Jie Zhang, Alzheimer's Disease Neuroimaging Initiative Alzheimer's Disease Neuroimaging Initiative
Summary: Given the complex nature of MCI, it is important to understand the different cognitive trajectories in order to develop personalized medicine and improve trial design. This study identified four distinct cognitive trajectories in individuals with MCI and found that these trajectories were associated with changes in AD biomarkers over time.
ALZHEIMERS RESEARCH & THERAPY
(2023)
Article
Health Care Sciences & Services
Lindsay White, Bailey Ingraham, Eric Larson, Paul Fishman, Sungchul Park, Norma B. Coe
Summary: Timely diagnosis of cognitive impairment is a key goal of the National Plan to Address Alzheimer's Disease, but studies on factors contributing to timely diagnosis are limited. This retrospective observational study found that only 26% of respondents with incident dementia and 11.4% with incident MCI received a timely diagnosis. Non-Hispanic Black and individuals with lower educational attainment were less likely to receive timely diagnosis of dementia or MCI compared to Non-Hispanic White respondents or those with a college degree.
JOURNAL OF GENERAL INTERNAL MEDICINE
(2022)
Article
Geriatrics & Gerontology
Randall L. Kuffel, Amy L. Byers, Brie Williams, Richard Fortinsky, Yixia Li, Michael A. Ruderman, Lisa C. Barry
Summary: This study examines the prevalence of dementia and mild cognitive impairment (MCI) among incarcerated individuals in the United States. The findings highlight the importance of understanding the link between cognitive impairment and incarceration in order to inform healthcare optimization and prevention strategies for this vulnerable population.
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
(2022)
Article
Clinical Neurology
Ruben Sanz-Blasco, Jose M. Ruiz-Sanchez de Leon, Marina Avila-Villanueva, Meritxel Valenti-Soler, Jaime Gomez-Ramirez, Miguel A. Fernandez-Blazquez
Summary: The study examined the rate of reversion from mild cognitive impairment to normal cognition in a unidirectional manner within the Alzheimer's disease continuum. There were both non-modifiable factors (age, socioeconomic status, apolipoprotein E) and modifiable factors (cognitive training, absence of affective symptoms) associated with reversion. The likelihood of progression from MCI to dementia was found to be similar to that of reversion from MCI to NC.
ALZHEIMERS & DEMENTIA
(2022)
Editorial Material
Cell Biology
Zhuang-Yao D. Wei, Ashok K. Shetty
Summary: This article discusses a recent study that suggests using a miRNA triad, consisting of miR-181a-5p, miR-146a-5p, and miR-148a-3p, for diagnosing ACI, MCI, and AD. The study explores the impact of elevated levels of this miRNA triad on neural plasticity and cognitive function in the brain and the potential of inhibiting it to improve cognitive function in MCI and AD.
Article
Clinical Neurology
Meng Wang, Tolulope T. Sajobi, David B. Hogan, Aravind Ganesh, Dallas P. Seitz, Thierry Chekouo, Nils D. Forkert, Michael J. Borrie, Richard Camicioli, Ging-Yuek Robin Hsiung, Mario Masellis, Paige Moorhouse, Maria Carmela Tartaglia, Zahinoor Ismail, Eric E. Smith
Summary: This study assesses experts' beliefs on important predictors of developing dementia in persons with mild cognitive impairment (MCI). Age, CSF analysis, FDG-PET findings, hippocampal atrophy, MoCA (or MMSE) score, parkinsonism, apathy, psychosis, informant report of cognitive symptoms, and global atrophy were identified as the ten most important predictors.
ALZHEIMERS & DEMENTIA
(2023)
Article
Medicine, General & Internal
Giacomo Tondo, Davide Aprile, Fabiola De Marchi, Barbara Sarasso, Paola Serra, Giordana Borasio, Esther Rojo, Juan Francisco Arenillas, Cristoforo Comi
Summary: Growing evidence suggests that neuroinflammation plays a critical role in neurodegenerative diseases. Peripheral markers of inflammation, such as the neutrophil-to-lymphocyte ratio (NLR), could be used as reliable indicators of central nervous system inflammation. However, the role of peripheral inflammation in dementia and MCI needs further clarification.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Geriatrics & Gerontology
Woori Moon, Ji Won Han, Jong Bin Bae, Seung Wan Suh, Tae Hui Kim, Kyung Phil Kwak, Bong Jo Kim, Shin Gyeom Kim, Jeong Lan Kim, Seok Woo Moon, Joon Hyuk Park, Seung-Ho Ryu, Jong Chul Youn, Dong Young Lee, Dong Woo Lee, Seok Bum Lee, Jung Jae Lee, Jin Hyeong Jhoo, Ki Woong Kim
Summary: This study investigated the disease burden of various dementias and mild cognitive impairment in a representative South Korean population, predicting a significant increase in disability-adjusted life-years and years lived with disability due to these conditions by 2065.
JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION
(2021)
Article
Immunology
Erin E. O'Connor, Thomas A. Zeffiro, Oscar L. Lopez, James T. Becker
Summary: The study found that while HIV infection has a localized effect on the striatal structure, having a prior ADI is a strong predictor of smaller global and regional GMV. HIV infection and ADI have independent effects on brain structure, without associated accelerated lower volume with age.
CLINICAL INFECTIOUS DISEASES
(2021)
Article
Infectious Diseases
R. C. Basil, T. T. Brown, S. Haberlen, L. H. Rubin, M. Plankey, J. T. Becker, J. E. Lake, F. J. Palella, S. Sarkar
Summary: The study found that diabetes patients, regardless of HIV infection status and glycemic control, were associated with a higher prevalence of depressive symptoms.
Article
Neurosciences
Christina P. Boyle, Cyrus A. Raji, Kirk Erickson, Oscar L. Lopez, James T. Becker, H. Michael Gach, Lewis H. Kuller, William Longstreth, Owen T. Carmichael, Brandalyn C. Riedel, Paul M. Thompson
Summary: Declining estrogen levels can affect memory and Alzheimer's disease risk, with hormone therapy potentially delaying dementia onset but with inconsistent findings. Effects of hormone therapy may be mediated by estrogen receptors throughout the brain, and may depend on lifestyle, timing, and genetics. Studies suggest varying effects of hormone therapy on brain volume, with oophorectomy and hysterectomy possibly negatively impacting brain volume.
HUMAN BRAIN MAPPING
(2021)
Article
Immunology
Yang Qu, Andrea Weinstein, Zheng Wang, Yu Cheng, Lawrence Kingsley, Andrew Levine, Eileen Martin, Cynthia Munro, Ann B. Ragin, Leah H. Rubin, Ned W. Sacktor, Eric C. Seaberg, James T. Becker
Summary: The initiation of combination antiretroviral therapy (cART) does not alter the trajectory of cognitive performance in HIV+ men, and cognitive function prior to cART is predictive of postcART function. Cognitive dysfunction in HIV-infected men persists and is not affected by cART in those who had impairment before starting therapy. In addition, motor function declines faster in infected men who were unimpaired prior to cART.
Letter
Immunology
Albert M. Anderson, Fiona Bhondoekhan, Dusica Curanovic, Margery A. Connelly, James D. Otvos, Wendy S. Post, Erin D. Michos, Cecile Lahiri, Steven Wolinsky, Andrew Levine, Eric C. Seaberg, Leah H. Rubin, David E. Vance, James T. Becker
Article
Clinical Neurology
Ricardo Bruna, David Lopez-Sanz, Fernando Maestu, Ann D. Cohen, Anto Bagic, Ted Huppert, Tae Kim, Rebecca E. Roush, Betz Snitz, James T. Becker
Summary: This study investigated the mechanisms behind Alzheimer's disease and found that patients with amnestic MCI showed a slowing of brain activity, which was not observed in individuals without subjective complaints. This raises interesting questions about this particular group of individuals and the underlying brain mechanisms behind their cognitive impairment.
CLINICAL EEG AND NEUROSCIENCE
(2023)
Article
Geriatrics & Gerontology
Tae Kim, Howard J. Aizenstein, Beth E. Snitz, Yu Cheng, Yue-Fang Chang, Rebecca E. Roush, Theodore J. Huppert, Annie Cohen, Jack Doman, James T. Becker
Summary: This study found that white matter hyperintensities (WMHs) are associated with cognitive decline, and the relationships between WM microstructural changes and structural and functional connectivity are important for understanding the pathophysiological processes of cognitive impairment.
FRONTIERS IN AGING NEUROSCIENCE
(2022)
Article
Neurosciences
Ricardo Bruna, Fernando Maestu, David Lopez-Sanz, Anto Bagic, Ann D. Cohen, Yue-Fang Chang, Yu Cheng, Jack Doman, Ted Huppert, Tae Kim, Rebecca E. Roush, Beth E. Snitz, James T. Becker
Summary: The study found that older females had higher phase locking values in networks affected during the asymptomatic phase of neurodegenerative disorders, similar to individuals with mild cognitive impairment. This suggests that women may experience brain functional changes earlier in life than men, potentially explaining the higher prevalence of dementia among women.
BRAIN CONNECTIVITY
(2022)
Article
Immunology
Albert M. Anderson, Fiona Bhondoekhan, Dusica Curanovic, Margery A. Connelly, James D. Otvos, Wendy S. Post, Erin D. Michos, Valentina Stosor, Andrew Levine, Eric Seaberg, Andrea M. Weinstein, James T. Becker
Summary: Elevated concentrations of sCD163, a marker of macrophage activation, were significantly associated with significant depression symptoms in people with HIV. Further research on this biomarker and macrophage activation is warranted to better understand and treat depression in this population.
JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
(2022)
Article
Neurosciences
Wenna Duan, Parshant Sehrawat, Tony D. Zhou, James T. Becker, Oscar L. Lopez, H. Michael Gach, Weiying Dai
Summary: This study aims to quantify the forward magnetization transfer rate (k(for)) map from brain tissue water to macromolecular protons and use it to identify the brain regions with abnormal k(for) in AD and AD progression. The results showed that AD patients had lower k(for) in the frontal gray matter, parietal gray matter, frontal corona radiata white matter tracts, and frontal and parietal superior longitudinal fasciculus white matter tracts compared to both normal controls (NC) and mild cognitive impairment (MCI) groups. The forward magnetization transfer rate is a promising biomarker for AD diagnosis and progression.
JOURNAL OF ALZHEIMERS DISEASE
(2022)
Article
Mathematical & Computational Biology
Zheng Wang, Zi Wang, Lingyun Lyu, Yu Cheng, Eric C. Seaberg, Samantha A. Molsberry, Ann Ragin, James T. Becker
Summary: In this study, a method for identifying cognitive impairment by using the difference of consecutive LMNC test statistics is proposed. Frequency modeling is used to predict the number of assessments for each participant, and a simple correction method is adopted to control the family-wise error rate. The method effectively controls the error rate in both simulation and real data.
STATISTICS IN MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Raynell Lang, Elizabeth Humes, Brenna Hogan, Jennifer Lee, Ralph D'Agostino, Joseph Massaro, Arthur Kim, James B. Meigs, Leila Borowsky, Wei He, Asya Lyass, David Cheng, H. Nina Kim, Marina B. Klein, Edward R. Cachay, Ronald J. Bosch, M. John Gill, Michael J. Silverberg, Jennifer E. Thorne, Kathleen McGinnis, Michael A. Horberg, Timothy R. Sterling, Virginia A. Triant, Keri N. Althoff
Summary: This study found no significant association between HCV coinfection and increased risk of T1MI. However, the risk of T1MI increased with age and was greater in HIV patients with HCV compared to those without HCV.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2022)
Article
Cardiac & Cardiovascular Systems
Chloe Sarnowski, Matthew P. Conomos, Ramachandran S. Vasan, James B. Meigs, Josee Dupuis, Ching-Ti Liu, Aaron Leong
Summary: The effects of genetic burden on obesity risk and cardiovascular disease differ based on birth year, with individuals born after 1960 being more strongly affected. This suggests that the impact of genetics on obesity and cardiovascular risks may be amplified in the increasingly obesogenic environment.
CIRCULATION-GENOMIC AND PRECISION MEDICINE
(2023)
Meeting Abstract
Geriatrics & Gerontology
Jennie Dorris, Heather DiCicco, James Becker, Juleen Rodakowski
INNOVATION IN AGING
(2022)
Article
Mathematical & Computational Biology
Zheng Wang, Yu Cheng, Eric C. Seaberg, James T. Becker
Summary: This study extends the application of net reclassification improvement (NRI) and integrated discrimination improvement (IDI) indices to competing risk outcomes, using cumulative incidence functions and inverse probability weighting. Various competing risk models are considered and estimation methods for NRI and IDI are presented. The proposed inferential procedures perform well according to simulations.