Post-mortem cortical transcriptomics of Lewy body dementia reveal mitochondrial dysfunction and lack of neuroinflammation

Lewy body dementia (LBD) is a major public health problem worldwide. Prevalence of Lewy body dementia (LBD) is second only to Alzheimer's disease (AD) among people with neurodegenerative dementia.1 LBD cause earlier mortality,2 earlier nursing home admissions, poorer quality-of-life, higher costs,3 more frequent falls, and more caregivers ’ burden than AD. LBD include two overlapping clinical syndromes, dementia with Lewy bodies (DLB) and Parkinson's disease (PD) dementia (PDD). They cause more frequent and more intense neuropsychiatric symptoms including visual hallucinations, delusions, agitation, and depression than AD.
Source: The American Journal of Geriatric Psychiatry - Category: Geriatrics Authors: Tags: Regular Research Article Source Type: research

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Lewy body dementia (LBD) is a major public health problem worldwide. Prevalence of LBD is second only to Alzheimer's disease (AD) among people with neurodegenerative dementia.1 LBD cause earlier mortality,2 earlier nursing home admissions, poorer quality-of-life, higher costs,3 more frequent falls, and more caregivers ’ burden than AD. LBD include two overlapping clinical syndromes, dementia with Lewy bodies (DLB) and Parkinson's disease (PD) dementia (PDD). They cause more frequent and more intense neuropsychiatric symptoms including visual hallucinations, delusions, agitation, and depression than AD.
Source: The American Journal of Geriatric Psychiatry - Category: Geriatrics Authors: Tags: Regular Research Article Source Type: research
This study sought to investigate what could be learned from how these men have fared. The men were born in 1925-1928 and similar health-related data from questionnaires, physical examination, and blood samples are available for all surveys. Survival curves over various variable strata were applied to evaluate the impact of individual risk factors and combinations of risk factors on all-cause deaths. At the end of 2018, 118 (16.0%) of the men had reached 90 years of age. Smoking in 1974 was the strongest single risk factor associated with survival, with observed percentages of men reaching 90 years being 26.3, 25.7, ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, we found that cofilin competes with tau for direct microtubule binding in vitro, in cells, and in vivo, which inhibits tau-induced microtubule assembly. Genetic reduction of cofilin mitigates tauopathy and synaptic defects in Tau-P301S mice and movement deficits in tau transgenic C. elegans. The pathogenic effects of cofilin are selectively mediated by activated cofilin, as active but not inactive cofilin selectively interacts with tubulin, destabilizes microtubules, and promotes tauopathy. These results therefore indicate that activated cofilin plays an essential intermediary role in neurotoxic signaling th...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Sandip T. Auti and Yogesh A. Kulkarni* Shobhaben Pratapbhai Patel School of Pharmacy &Technology Management, SVKM's NMIMS, Mumbai, India Acetylcholinesterase (AChE) is an enzyme involved in the progression of Alzheimer's disease (AD). Cardamom oil (CO) has been reported to have acetylcholinesterase inhibitory, antioxidant and anti-anxiety effects. Hence, we studied the effect of cardamom oil in aluminum chloride induced neurotoxicity in rats. AD like symptoms were induced in Wistar rats with aluminum chloride (100 mg/kg, p.o.). Cardamom oil was administered concomitantly by oral route at doses...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion Taken together, evidence from animal and human studies demonstrates that the brain detects levels of circulating nutrients and hormones and consequently organizes an outward response that contributes to the regulation of whole-body glucose homeostasis. However, there are major knowledge gaps about the exact nature of this response and its relative importance compared to peripheral processes. As we have seen, animal studies have provided an anatomical map of CNS glucose regulation and have identified important neurons and neural circuits involved. Additionally, the CNS sensing of key nutrients and hormones has b...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
The best way to establish significance of a given form of damage or dysfunction in aging is to repair it and then observe the results of that repair. This form of investigation is now well underway for the accumulation of senescent cells in aging, as the research community has established numerous means of selectively destroying senescent cells in animals. These range from genetically engineered INK-ATTAC mice to senolytic small molecule drugs to programmable suicide gene therapies, and more are being added with each passing year. Recent demonstrations in mice (using navitoclax, dasatinib and quercetin, and piperlongumine ...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
This study suggests that advantages and disadvantages vary by environment and diet, however, which might explain why evolution has selected for multiple haplogroups rather than one dominant haplogroup. This is all interesting, but none of it stops the research community from engineering a globally better-than-natural human mitochondrial genome, and then copying it into the cell nucleus as a backup to prevent the well-known contribution of mitochondrial DNA damage to aging. Further, nothing stops us from keeping the haplogroups we have and rendering the effects of variants small and irrelevant through the development...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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