Effect of Moxibustion on Behavioral Changes and Expression of APP and BACE1 in Hippocampus of SAMP8 Mice

Ha, Lue; Yang, Bin; Wang, Shaosong; An, Yu; Wang, Hao; Cui, Yingxue

doi:10.1155/2020/3598930

Cited by 3 publications

(3 citation statements)

References 37 publications

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“…In addition, moxibustion could alleviate the depression-like behavior and adjust tryptophan transport and 5-HT generation (Li et al, 2019 ). Ha et al ( 2020 ) found that the effect of moxibustion on the cognition of aging mice is associated with the genes and proteins involved in the APP metabolic pathway. Through these mechanisms, moxibustion has good potential in treating cognitive impairment diseases, especially in restraining AD-related Aβ genesis.…”

Section: Introductionmentioning

confidence: 99%

Efficacy and Mechanism of Moxibustion Treatment on Mild Cognitive Impairment Patients: An fMRI Study Using ALFF

Lai

Zhang

Liang

et al. 2022

Front. Mol. Neurosci.

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BackgroundMild Cognitive Impairment (MCI), as a high risk of Alzheimer’s disease (AD), represents a state of cognitive function between normal aging and dementia. Moxibustion may effectively delay the progression of AD, while there is a lack of studies on the treatments in MCI. This study aimed to evaluate the effect of moxibustion treatment revealed by the amplitude of low-frequency fluctuation (ALFF) in MCI.MethodWe enrolled 30 MCI patients and 30 matched healthy controls (HCs) in this study. We used ALFF to compare the difference between MCI and HCs at baseline and the regulation of spontaneous neural activity in MCI patients by moxibustion. The Mini-Mental State Examination and Montreal Cognitive Assessment scores were used to evaluate cognitive function.ResultsCompared with HCs, the ALFF values significantly decreased in the right temporal poles: middle temporal gyrus (TPOmid), right inferior temporal gyrus, left middle cingulate gyrus, and increased in the left hippocampus, left middle temporal gyrus, right lingual gyrus, and right middle occipital gyrus in MCI patients. After moxibustion treatment, the ALFF values notably increased in the left precuneus, left thalamus, right temporal poles: middle temporal gyrus, right middle frontal gyrus, right inferior temporal gyrus, right putamen, right hippocampus, and right fusiform gyrus, while decreased in the bilateral lingual gyrus in MCI patients. The Mini-Mental State Examination and Montreal Cognitive Assessment scores increased after moxibustion treatment, and the increase in Mini-Mental State Examination score was positively correlated with the increase of ALFF value in the right TPOmid, the right insula, and the left superior temporal gyrus.ConclusionMoxibustion treatment might improve the cognitive function of MCI patients by modulating the brain activities within the default mode network, visual network, and subcortical network with a trend of increased ALFF values and functional asymmetry of the hippocampus. These results indicate that moxibustion holds great potential in the treatment of MCI.

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Section: Introductionmentioning

confidence: 99%

Efficacy and Mechanism of Moxibustion Treatment on Mild Cognitive Impairment Patients: An fMRI Study Using ALFF

Lai

Zhang

Liang

et al. 2022

Front. Mol. Neurosci.

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“…10 Elevated expression of BACE1 has been found in senescence-accelerated mouse prone 8 (SAMP8) mice during aging. 11 In addition, it has been shown that inhibition of BACE1 activity may have a negative effect on AD progression by controlling the production of Aβ.…”

Section: Introductionmentioning

confidence: 99%

“…Of these, BACE1 is also related to loss of cognitive function in the central nervous system of development and aging and acts on Aβ N‐terminus and participates in the toxic cracking of APP 10 . Elevated expression of BACE1 has been found in senescence‐accelerated mouse prone 8 (SAMP8) mice during aging 11 . In addition, it has been shown that inhibition of BACE1 activity may have a negative effect on AD progression by controlling the production of Aβ.…”

Section: Introductionmentioning

confidence: 99%

Age‐related miRNAs dysregulation and abnormal BACE1 expression following Pb exposure in adolescent mice

Wang

Bai

et al. 2022

Environmental Toxicology

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Numbers of emerging evidence suggest that lead (Pb) exposure contributes to cognitive decline and might also increase the risk of Alzheimer's disease (AD) dementia in the elderly by increasing the beta-amyloid burden. Here, we aimed to characterize the effects of Pb on the post-transcriptional regulators, microRNAs (miRNAs), which may participate in AD pathogenesis. At first, early chronic Pb exposure on neuronal miRNAs expression with increasing aging was profiled to elucidate the association of three selected miRNAs with β-site APP-cleaving enzyme 1(BACE1), a rate-limiting enzyme for β-amyloid (Aβ) production. Next, we verified changes in BACE1 were observed by regulating miRNAs expression in vitro. While Pb promoted BACE1 levels, BACE1 levels were reduced in SH-SY5Y cells with miR-124-3p mimic, suggesting for the first time that miR-124-3p/BACE1 pathway modulation is critically involved in Pb-induced AD-like amyloidogenic processing. Findings from this study could provide new insight into the molecular mechanisms of Pb-associated neurodegenerative pathogenesis from an epigenetic perspective.

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Transcriptome analysis of the aged SAMP8 mouse model of Alzheimer’s disease reveals novel molecular targets of formononetin protection

Liu,

Cui,

Liu

et al. 2024

Front. Pharmacol.

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BackgroundSenescence-accelerated mouse prone 8 (SAMP8) and age-matched SAMR1 mice are used to study the pathogenesis and therapeutics of Alzheimer’s disease (AD); however, the molecular mechanisms are not completely understood.ObjectiveThis study aimed to examine the effects of the 5-month administration of formononetin in SAMP8 mice and used RNA-seq to explore the molecular targets.MethodsSAMP8 mice were orally administered formononetin (0, 8, and 16 mg/kg) from 4 months of age, and age-matched SAMR1 mice were used as controls. Behavioral tests were performed in 9-month-old mice, followed by histopathologic analysis. Total RNA from the hippocampus was isolated and subjected to RNA-seq, RT-qPCR, and bioinformatics analysis.ResultsThe 9-month-old SAMP8 mice exhibited cognition deficits, evidenced by novel object recognition, open-field test, elevated plus maze, and passive avoidance. Nissl bodies in the cortex and hippocampus were decreased. Formononetin treatments ameliorated behavioral deficits and improved morphological changes, which were evidenced by Nissl and H&E staining. RNA-seq revealed distinct gene expression patterns between SAMP8 and SAMR1 mice. Differentially expressed genes in SAMP8 mice were attenuated or normalized by formononetin. Ingenuity pathway analysis (IPA) of canonical pathway and upstream regulators revealed increases in proinflammatory factors and immune dysfunction and decreases in NRF2 and SIRT-1 signaling pathways, leading to neuroinflammation. Formononetin treatment attenuated or reversed these molecular changes. The transcriptome of SAMP8 mice was correlated with transcriptomic profiles of other AD mouse models in the GEO database.ConclusionNeuroinflammation and decreased antioxidant and SIRT-1 signaling contributed to cognitive deficits in aged SAMP8 mice, which are potential therapeutic targets of formononetin in combination with other therapies.

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Effect of Moxibustion on Behavioral Changes and Expression of APP and BACE1 in Hippocampus of SAMP8 Mice

Cited by 3 publications

References 37 publications

Efficacy and Mechanism of Moxibustion Treatment on Mild Cognitive Impairment Patients: An fMRI Study Using ALFF

Efficacy and Mechanism of Moxibustion Treatment on Mild Cognitive Impairment Patients: An fMRI Study Using ALFF

Age‐related miRNAs dysregulation and abnormal BACE1 expression following Pb exposure in adolescent mice

Transcriptome analysis of the aged SAMP8 mouse model of Alzheimer’s disease reveals novel molecular targets of formononetin protection

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