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Franco-Pérez J. Mechanisms Underlying Memory Impairment Induced by Fructose. Neuroscience 2024; 548:27-38. [PMID: 38679409 DOI: 10.1016/j.neuroscience.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/04/2024] [Accepted: 04/03/2024] [Indexed: 05/01/2024]
Abstract
Fructose consumption has increased over the years, especially in adolescents living in urban areas. Growing evidence indicates that daily fructose consumption leads to some pathological conditions, including memory impairment. This review summarizes relevant data describing cognitive deficits after fructose intake and analyzes the underlying neurobiological mechanisms. Preclinical experiments show sex-related deficits in spatial memory; that is, while males exhibit significant imbalances in spatial processing, females seem unaffected by dietary supplementation with fructose. Recognition memory has also been evaluated; however, only female rodents show a significant decline in the novel object recognition test performance. According to mechanistic evidence, fructose intake induces neuroinflammation, mitochondrial dysfunction, and oxidative stress in the short term. Subsequently, these mechanisms can trigger other long-term effects, such as inhibition of neurogenesis, downregulation of trophic factors and receptors, weakening of synaptic plasticity, and long-term potentiation decay. Integrating all these neurobiological mechanisms will help us understand the cellular and molecular processes that trigger the memory impairment induced by fructose.
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Affiliation(s)
- Javier Franco-Pérez
- Laboratorio Patología Vascular Cerebral, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Insurgentes Sur 3877, Col. La Fama, C.P. 14269, CDMX, México, Mexico.
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Zhang Y, Wei R, Li Z, Li X, Zhang K, Ge Y, Kong X, Liu X, Chen G. Melatonin improves maternal sleep deprivation-induced learning and memory impairment, inflammation, and synaptic dysfunction in murine male adult offspring. Brain Behav 2024; 14:e3515. [PMID: 38702895 PMCID: PMC11069022 DOI: 10.1002/brb3.3515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 03/20/2024] [Accepted: 04/08/2024] [Indexed: 05/06/2024] Open
Abstract
INTRODUCTION Maternal sleep deprivation (MSD), which induces inflammation and synaptic dysfunction in the hippocampus, has been associated with learning and memory impairment in offspring. Melatonin (Mel) has been shown to have anti-inflammatory, antioxidant, and neuroprotective function. However, the beneficial effect of Mel on MSD-induced cognitive impairment and its mechanisms are unknown. METHODS In the present study, adult offspring suffered from MSD were injected with Mel (20 mg/kg) once a day during postnatal days 61-88. The cognitive function was evaluated by the Morris water maze test. Levels of proinflammatory cytokines were examined by enzyme-linked immunosorbent assay. The mRNA and protein levels of synaptic plasticity associated proteins were examined using reverse transcription-polymerase chain reaction and western blotting. RESULTS The results showed that MSD impaired learning and memory in the offspring mice. MSD increased the levels of interleukin (IL)-1creIL-6, and tumor necrosis factor-α and decreased the expression levels of brain-derived neurotrophic factor, tyrosine kinase receptor B, postsynaptic density protein-95, and synaptophysin in the hippocampus. Furthermore, Mel attenuated cognitive impairment and restored markers of inflammation and synaptic plasticity to control levels. CONCLUSIONS These findings indicated that Mel could ameliorate learning and memory impairment induced by MSD, and these beneficial effects were related to improvement in inflammation and synaptic dysfunction.
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Affiliation(s)
- Yue‐Ming Zhang
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Ru‐Meng Wei
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Zong‐Yin Li
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xue‐Yan Li
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Kai‐Xuan Zhang
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Yi‐Jun Ge
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xiao‐Yi Kong
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xue‐Chun Liu
- Department of NeurologyThe Second People's Hospital of HefeiHefei Hospital Affiliated to Anhui Medical UniversityHefeiAnhuiChina
| | - Gui‐Hai Chen
- Department of Neurology (Sleep Disorders)The Affiliated Chaohu Hospital of Anhui Medical UniversityHefeiAnhuiChina
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Wei RM, Zhang YM, Zhang KX, Liu GX, Li XY, Zhang JY, Lun WZ, Liu XC, Chen GH. An enriched environment ameliorates maternal sleep deprivation-induced cognitive impairment in aged mice by improving mitochondrial function via the Sirt1/PGC-1α pathway. Aging (Albany NY) 2024; 16:1128-1144. [PMID: 38231482 PMCID: PMC10866428 DOI: 10.18632/aging.205385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/16/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND Early life stress can cause cognitive impairment in aged offspring. Environmental enrichment (EE) is considered to be an effective non-pharmacological treatment for improving cognitive decline. The aim of this research was to evaluate the effect of EE, on cognitive impairment in aged offspring induced by maternal sleep deprivation (MSD) and the underlying mechanisms involved to investigate its potential value in clinical practice. METHODS CD-1 damns were subjected or not to sleep deprivation during late gestation. Twenty-one days after birth, the offspring were assigned to standard or EE cages. At 18 months-old, the learning and memory function of the offspring mice was evaluated using Morris water maze. The hippocampal and prefrontal cortical levels of protein, gene, proinflammation cytokines, and oxidative stress indicators was examined by Western blot, real-time polymerase chain reaction, enzyme linked immunosorbent assay, and biochemical assays. RESULTS Offspring in MSD group exhibited declined learning and memory abilities compared with control animals. Moreover, the hippocampal and prefrontal cortical levels of Sirtuin1 (Sirt1), peroxisome proliferator-activated receptor-gamma coactivator-1 alpha (PGC-1α), postsynaptic density protein-95, and synaptophysin were lower and those of proinflammation cytokines higher in the MSD group; meanwhile, the superoxide dismutase content was higher and the malondialdehyde and reactive oxygen species contents were lower. However, these deleterious changes were ameliorated by exposure to EE. CONCLUSIONS EE attenuates MSD-induced cognitive impairment, oxidative stress, and neuroinflammation and reverses the reduction in synaptic protein levels in aged offspring mice via the Sirt1/PGC-1α pathway.
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Affiliation(s)
- Ru-Meng Wei
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Yue-Ming Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Kai-Xuan Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Gao-Xia Liu
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Xue-Yan Li
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Jing-Ya Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Wei-Zhong Lun
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
| | - Xue-Chun Liu
- Department of Neurology, The Second People’s Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei 230011, Anhui, China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238001, Anhui, China
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Kang WC, Park K, Kong CH, Kim DY, Lee YS, Jeon M, Kim MS, Jung SY, Hong J, Choi JH, Ryu JH. D-Pinitol attenuates postmenopausal symptoms in ovariectomized mice. Life Sci 2023; 333:122147. [PMID: 37802198 DOI: 10.1016/j.lfs.2023.122147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/08/2023]
Abstract
AIMS Menopause is a natural process in women that can lead to post-menopausal syndrome with symptoms such as hot flushes, weight gain, anxiety, cognitive decline, and depression. Hormonal replacement therapy is commonly prescribed. However, it has serious adverse effects. Herbal medicinal products and isoflavones are used as alternatives. D-Pinitol found in Pinaceae and Fabaceae families has anti-inflammatory and antioxidant effects. However, it has not received as much attention as isoflavones. In this study, we investigated whether D-pinitol could alleviate post-menopausal symptoms using an ovariectomized (OVX) mouse model. MAIN METHODS Female ICR mice were divided into six groups: sham (vehicle), OVX (vehicle), OVX + D-pinitol (10, 30, 100 mg/kg, p.o.), and OVX + estradiol (0.5 mg/kg, s.c.). Treatment with vehicle, D-pinitol, and estradiol began at seven weeks post ovariectomy. We employed several behavioral tests, hot-flush test, and Western blot analysis. KEY FINDINGS We found that D-pinitol treatment (30, 100 mg/kg, p.o.) reversed cognitive dysfunction in OVX mice (novel object recognition and Y-maze test). Additionally, D-pinitol alleviated anxiety-like behaviors (elevated plus-maze) and reversed depressive-like behaviors (splash test, tail suspension test). It also normalized increased basal tail skin temperature in OVX mice. Moreover, D-pinitol administration reversed decreased expression of ERβ and synaptophysin and phosphorylation of ERK and PI3K-Akt-GSK-3β induced by OVX in the hippocampus and prefrontal cortex. SIGNIFICANCE These findings indicate that D-pinitol might be a promising candidate for treating post-menopausal symptoms by increasing ERβ and synaptophysin expression levels and activation of ERK or PI3K-Akt-GSK-3β signaling pathway, at least in part.
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Affiliation(s)
- Woo Chang Kang
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Keontae Park
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Chang Hyeon Kong
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Do Yeon Kim
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Yong Seung Lee
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Mijin Jeon
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Min Seo Kim
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seo Yun Jung
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jongki Hong
- College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jung Hye Choi
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea; Department of Oriental Pharmaceutical Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong Hoon Ryu
- Department of Biomedical and Pharmaceutical science, Kyung Hee University, Seoul 02447, Republic of Korea; Department of Oriental Pharmaceutical Science, Kyung Hee University, Seoul 02447, Republic of Korea.
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Zhang YM, Zhang MY, Wei RM, Zhang JY, Zhang KX, Luo BL, Ge YJ, Kong XY, Li XY, Chen GH. Subsequent maternal sleep deprivation aggravates neurobehavioral abnormalities, inflammation, and synaptic function in adult male mice exposed to prenatal inflammation. Front Behav Neurosci 2023; 17:1226300. [PMID: 37560531 PMCID: PMC10407227 DOI: 10.3389/fnbeh.2023.1226300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 07/07/2023] [Indexed: 08/11/2023] Open
Abstract
OBJECTIVE Studies have suggested that prenatal exposure to inflammation increases the risk of neuropsychiatric disorders, including anxiety, depression, and cognitive dysfunction. Because of anatomical and hormonal alterations, pregnant women frequently experience sleep dysfunction, which can enhance the inflammatory response. The aim of this study was to explore the effects of maternal sleep deprivation on prenatal inflammation exposure-induced behavioral phenotypes in offspring and identify the associated mechanisms. METHODS Pregnant mice received an intraperitoneal injection of lipopolysaccharide (LPS) on gestational day 15 and were subsequently subjected to sleep deprivation during gestational days 15-21. Anxiety-like behavior was evaluated by the open field test and the elevated plus maze test. Depression-like behavior was assessed by the tail suspension test and the forced swimming test. Cognitive function was determined using the Morris water maze test. The levels of markers of inflammation and synaptic function were examined employing general molecular biological techniques. RESULTS The results showed that prenatal exposure to LPS resulted in anxiety- and depression-like symptoms and learning and memory deficits, and these effects were exacerbated by maternal sleep deprivation. Furthermore, maternal sleep deprivation aggravated the prenatal LPS exposure-induced increase in the expression of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α and decrease in the levels of postsynaptic density-95 and synaptophysin in the hippocampus. DISCUSSION Collectively, these results suggested that maternal sleep deprivation exacerbates anxiety, depression, and cognitive impairment induced by prenatal LPS exposure, effects that were associated with an inflammatory response and synaptic dysfunction.
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Affiliation(s)
- Yue-Ming Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Meng-Ying Zhang
- Department of Anesthesiology, The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ru-Meng Wei
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jing-Ya Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Kai-Xuan Zhang
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Bao-Ling Luo
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yi-Jun Ge
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Yi Kong
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xue-Yan Li
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), The Affiliated Chaohu Hospital of Anhui Medical University, Hefei, Anhui, China
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