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Pilarzyk K, Porcher L, Capell WR, Burbano SD, Davis J, Fisher JL, Gorny N, Petrolle S, Kelly MP. Conserved age-related increases in hippocampal PDE11A4 cause unexpected proteinopathies and cognitive decline of social associative memories. Aging Cell 2022; 21:e13687. [PMID: 36073342 PMCID: PMC9577960 DOI: 10.1111/acel.13687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/06/2022] [Accepted: 07/22/2022] [Indexed: 01/25/2023] Open
Abstract
In humans, associative memories are more susceptible to age-related cognitive decline (ARCD) than are recognition memories. Reduced cAMP/cGMP signaling in the hippocampus may contribute to ARCD. Here, we found that both aging and traumatic brain injury-associated dementia increased the expression of the cAMP/cGMP-degrading enzyme phosphodiesterase 11A (PDE11A) in the human hippocampus. Further, age-related increases in hippocampal PDE11A4 mRNA and protein were conserved in mice, as was the increased vulnerability of associative versus recognition memories to ARCD. Interestingly, mouse PDE11A4 protein in the aged ventral hippocampus (VHIPP) ectopically accumulated in the membrane fraction and filamentous structures we term "ghost axons." These age-related increases in expression were driven by reduced exoribonuclease-mediated degradation of PDE11A mRNA and increased PDE11A4-pS117/pS124, the latter of which also drove the punctate accumulation of PDE11A4. In contrast, PDE11A4-pS162 caused dispersal. Importantly, preventing age-related increases in PDE11 expression via genetic deletion protected mice from ARCD of short-term and remote long-term associative memory (aLTM) in the social transmission of food preference assay, albeit at the expense of recent aLTM. Further, mimicking age-related overexpression of PDE11A4 in CA1 of old KO mice caused aging-like impairments in CREB function and remote social-but not non-social-LTMs. RNA sequencing and phosphoproteomic analyses of VHIPP identified cGMP-PKG-as opposed to cAMP-PKA-as well as circadian entrainment, glutamatergic/cholinergic synapses, calcium signaling, oxytocin, and retrograde endocannabinoid signaling as mechanisms by which PDE11A deletion protects against ARCD. Together, these data suggest that PDE11A4 proteinopathies acutely impair signaling in the aged brain and contribute to ARCD of social memories.
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Affiliation(s)
- Katy Pilarzyk
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - Latarsha Porcher
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - William R. Capell
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - Steven D. Burbano
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - Jeff Davis
- Instrument Resource FacilityUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - Janet L. Fisher
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
| | - Nicole Gorny
- Department of Anatomy & NeurobiologyUniversity of Maryland School of MedicineBaltimoreMarylandUSA
| | - Siena Petrolle
- Department of Anatomy & NeurobiologyUniversity of Maryland School of MedicineBaltimoreMarylandUSA
| | - Michy P. Kelly
- Department of Pharmacology, Physiology & NeuroscienceUniversity of South Carolina School of MedicineColumbiaSouth CarolinaUSA
- Department of Anatomy & NeurobiologyUniversity of Maryland School of MedicineBaltimoreMarylandUSA
- Center for Research on AgingUniversity of Maryland School of MedicineBaltimoreMarylandUSA
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Wei ZD, Shetty AK. Can mild cognitive impairment and Alzheimer's disease be diagnosed by monitoring a miRNA triad in the blood? Aging Cell 2022; 21:e13627. [PMID: 35537095 PMCID: PMC9197398 DOI: 10.1111/acel.13627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 11/29/2022] Open
Abstract
Objectively diagnosing age‐related cognitive impairment (ACI), mild cognitive impairment (MCI), and early‐stage Alzheimer's disease (AD) is a difficult task, as most cognitive impairment is clinically established via questionnaires, history, and physical examinations. A recent study has suggested that monitoring a miRNA triad, miR‐181a‐5p, miR‐146a‐5p, and miR‐148a‐3p can identify ACI and its progression to MCI and AD (Islam et al., EMBO Mol Med. 13: e14997, 2021). This commentary deliberates findings from this article, such as elevated levels of the miRNA triad in the brain impairing neural plasticity and cognitive function, the efficiency of measuring the miRNA triad in the circulating blood diagnosing MCI and AD, and the promise for improving cognitive function in MCI and AD by inhibiting this miRNA triad. Additional studies required prior to employing this miRNA triad in clinical practice are also discussed.
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Affiliation(s)
- Zhuang‐Yao D. Wei
- Institute for Regenerative Medicine Department of Molecular and Cellular Medicine Texas A&M University Health Science Center College of Medicine College Station Texas USA
| | - Ashok K. Shetty
- Institute for Regenerative Medicine Department of Molecular and Cellular Medicine Texas A&M University Health Science Center College of Medicine College Station Texas USA
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Li T, Wei Y, Qu M, Mou L, Miao J, Xi M, Liu Y, He R. Formaldehyde and De/Methylation in Age-Related Cognitive Impairment. Genes (Basel) 2021; 12:genes12060913. [PMID: 34199279 PMCID: PMC8231798 DOI: 10.3390/genes12060913] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/31/2021] [Accepted: 06/10/2021] [Indexed: 12/19/2022] Open
Abstract
Formaldehyde (FA) is a highly reactive substance that is ubiquitous in the environment and is usually considered as a pollutant. In the human body, FA is a product of various metabolic pathways and participates in one-carbon cycle, which provides carbon for the synthesis and modification of bio-compounds, such as DNA, RNA, and amino acids. Endogenous FA plays a role in epigenetic regulation, especially in the methylation and demethylation of DNA, histones, and RNA. Recently, epigenetic alterations associated with FA dysmetabolism have been considered as one of the important features in age-related cognitive impairment (ARCI), suggesting the potential of using FA as a diagnostic biomarker of ARCI. Notably, FA plays multifaceted roles, and, at certain concentrations, it promotes cell proliferation, enhances memory formation, and elongates life span, effects that could also be involved in the aetiology of ARCI. Further investigation of and the regulation of the epigenetics landscape may provide new insights about the aetiology of ARCI and provide novel therapeutic targets.
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Affiliation(s)
- Ting Li
- Bayannur Hospital, Bayannur 015000, China;
| | - Yan Wei
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China; (Y.W.); (L.M.); (J.M.)
| | - Meihua Qu
- Translational Medical Center, Weifang Second People’s Hospital, The Second Affiliated Hospital of Weifang Medical University, Weifang 261041, China;
| | - Lixian Mou
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China; (Y.W.); (L.M.); (J.M.)
| | - Junye Miao
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China; (Y.W.); (L.M.); (J.M.)
| | - Mengqi Xi
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China; (M.X.); (Y.L.)
| | - Ying Liu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China; (M.X.); (Y.L.)
| | - Rongqiao He
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Chaoyang District, Beijing 100101, China; (Y.W.); (L.M.); (J.M.)
- Correspondence:
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Gunawan A, Fajar JK, Tamara F, Mahendra AI, Ilmawan M, Purnamasari Y, Kartini DA, Winoto ES, Saifillah ES, Wulandari DS, Krisna PA, Mayasari ED, Dantara TWI, Wicaksono RS, Soeatmadji DW. Nitride oxide synthase 3 and klotho gene polymorphisms in the pathogenesis of chronic kidney disease and age-related cognitive impairment: a systematic review and meta-analysis. F1000Res 2020; 9:252. [PMID: 34035901 PMCID: PMC8112466 DOI: 10.12688/f1000research.22989.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2021] [Indexed: 12/25/2022] Open
Abstract
Background: While it has been known that the development of chronic kidney disease (CKD) and age-related cognitive impairment involves several mediators, the evidence in clinical practice only reveals nitride oxide synthase (NOS) and klotho. However, the evidence for this topic is conflicted. The aim of this study was to assess the role of NOS and klotho single nucleotide polymorphisms (SNPs) in the pathogenesis of CKD and age-related cognitive impairment. Methods: We performed a meta-analysis during October to December 2019. Paper collection was performed in major scientific websites, and we extracted information of interest from each paper. Data were analyzed using a Z-test with either random or fixed effect model. Results: Our initial assessment identified NOS3 G894T, NOS3 T786C, NOS3 4b/4a, klotho ( KL) G395A, and KL C1818T as the gene candidate for our meta-analysis. Our pooled calculation revealed that NOS3 G894T was associated with the risk of both age-related cognitive impairment and CKD. Increased susceptibility to age-related cognitive impairment was observed in the GG genotype, and increased risk of CKD was found in patients with a single T allele and TT genotype for NOS3 nucleotide 894. For NOS3 4b/4a, increased risk of CKD was only found in 4a4a genotype. For NOS3 T786C, we failed to show the association with both CKD and age-related cognitive impairment. Subsequently, for KL G395A, A allele and GA genotype were found to correlate with increased susceptibility to CKD, while its correlation to age-related cognitive impairment was failed to clarify. For KL C1818T, our analysis failed to find the correlation with the risk of CKD. Conclusions: Our results reveal that the NOS3 G894T gene polymorphism has a crucial role in the pathogenesis of both CKD and age-related cognitive impairment.
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Affiliation(s)
- Atma Gunawan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Jonny Karunia Fajar
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Fredo Tamara
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Aditya Indra Mahendra
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Muhammad Ilmawan
- Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Yeni Purnamasari
- Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | | | - Eden Suryoiman Winoto
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Efriko Septananda Saifillah
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Dewi Sri Wulandari
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Pratista Adi Krisna
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Ema Dianita Mayasari
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Tri Wahyudi Iman Dantara
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Ramadi Satryo Wicaksono
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
- Department of Internal Medicine, Rumah Sakit Umum Daerah Bangil., Pasuruan, East Java, 67153, Indonesia
| | - Djoko Wahono Soeatmadji
- Division of Endocrinology and Metabolic Diseases, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
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Gunawan A, Fajar JK, Tamara F, Mahendra AI, Ilmawan M, Purnamasari Y, Kartini DA, Winoto ES, Saifillah ES, Wulandari DS, Krisna PA, Mayasari ED, Dantara TWI, Wicaksono RS, Soeatmadji DW. Nitride oxide synthase 3 and klotho gene polymorphisms in the pathogenesis of chronic kidney disease and age-related cognitive impairment: a systematic review and meta-analysis. F1000Res 2020; 9:252. [PMID: 34035901 PMCID: PMC8112466 DOI: 10.12688/f1000research.22989.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/02/2020] [Indexed: 04/03/2024] Open
Abstract
Background: While it has been known that the development of chronic kidney disease (CKD) and age-related cognitive impairment involves several mediators, the evidence in clinical practice only reveals nitride oxide synthase (NOS) and klotho. However, the evidence for this topic is conflicted. The aim of this study was to assess the role of NOS and klotho single nucleotide polymorphisms (SNPs) in the pathogenesis of CKD and age-related cognitive impairment. Methods: We performed a meta-analysis during October to December 2019. Paper collection was performed in major scientific websites, and we extracted information of interest from each paper. Data were analyzed using a Z-test with either random or fixed effect model. Results: Our initial assessment identified NOS3 G894T, NOS3 T786C, NOS3 4b/4a, klotho ( KL) G395A, and KL C1818T as the gene candidate for our meta-analysis. Our pooled calculation revealed that NOS3 G894T was associated with the risk of both age-related cognitive impairment and CKD. Increased susceptibility to age-related cognitive impairment was observed in the GG genotype, and increased risk of CKD was found in patients with a single T allele and TT genotype for NOS3 nucleotide 894. For NOS3 4b/4a, increased risk of CKD was only found in 4a4a genotype. For NOS3 T786C, we failed to show the association with both CKD and age-related cognitive impairment. Subsequently, for KL G395A, A allele and GA genotype were found to correlate with increased susceptibility to CKD, while its correlation to age-related cognitive impairment was failed to clarify. For KL C1818T, our analysis failed to find the correlation with the risk of CKD. Conclusions: Our results reveal that the NOS3 G894T gene polymorphism has a crucial role in the pathogenesis of both CKD and age-related cognitive impairment.
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Affiliation(s)
- Atma Gunawan
- Division of Nephrology and Hypertension, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Jonny Karunia Fajar
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Fredo Tamara
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Aditya Indra Mahendra
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Muhammad Ilmawan
- Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Yeni Purnamasari
- Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | | | - Eden Suryoiman Winoto
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Efriko Septananda Saifillah
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Dewi Sri Wulandari
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Pratista Adi Krisna
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Ema Dianita Mayasari
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Tri Wahyudi Iman Dantara
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
| | - Ramadi Satryo Wicaksono
- Brawijaya Internal Medicine Research Center, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
- Department of Internal Medicine, Rumah Sakit Umum Daerah Bangil., Pasuruan, East Java, 67153, Indonesia
| | - Djoko Wahono Soeatmadji
- Division of Endocrinology and Metabolic Diseases, Department of Internal Medicine, Faculty of Medicine, Universitas Brawijaya, Malang, East Java, 65145, Indonesia
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Abstract
GHK (glycyl-L-histidyl-L-lysine) is a naturally occurring peptide found in human serum with levels averaging 200 ng/ml at age 20 but declining to an average of 80 ng/ml by age 60. The molecule has a very high affinity for copper and forms the chelate GHK-Cu. The peptide as well as its Cu (II) chelate have anti-inflammatory and tissue remodeling properties. GHK-Cu has been shown to promote skin remodeling, wound healing and regeneration, and has prominent antioxidant and anti-inflammatory effects in in vitro and in vivo studies. In addition, preliminary observations suggest GHK can partially reverse cognitive impairment in aging mice by targeting anti-inflammatory and epigenetic pathways. The evidence as presented provides the rationale to further investigate this naturally occurring peptide in preclinical and clinical aging studies.
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Affiliation(s)
- Yan Dou
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Amanda Lee
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Lida Zhu
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - John Morton
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
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Zhang Y, Wu K, Su W, Zhang DF, Wang P, Qiao X, Yao Q, Yuan Z, Yao YG, Liu G, Zhang C, Liu L, Chen C. Increased GSNOR Expression during Aging Impairs Cognitive Function and Decreases S-Nitrosation of CaMKIIα. J Neurosci 2017; 37:9741-58. [PMID: 28883020 DOI: 10.1523/JNEUROSCI.0681-17.2017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 07/27/2017] [Accepted: 08/03/2017] [Indexed: 11/21/2022] Open
Abstract
As the population ages, an increasing number of people suffer from age-related cognitive impairment. However, the mechanisms underlying this process remain unclear. Here, we found that S-nitrosoglutathione reductase (GSNOR), the key enzyme that metabolizes intracellular nitric oxide (NO) and regulates S-nitrosation, was significantly increased in the hippocampus of both aging humans and mice. Transgenic mice overexpressing GSNOR exclusively in neurons showed cognitive impairment in behavioral tests, including the Morris water maze, fear conditioning, and the Y-maze test. We also found that GSNOR transgenic mice have LTP defects and lower dendrite spine density, whereas GSNOR knock-out mice rescued the age-related cognitive impairment. Analysis of S-nitrosation showed significantly decreased hippocampal CaMKIIα S-nitrosation in naturally aged mice and GSNOR transgenic mice. Consistent with the change in CaMKIIα S-nitrosation, the accumulation of CaMKIIα in the hippocampal synaptosomal fraction, as well as its downstream signaling targets p(S831)-GLUR1, was also significantly decreased. All these effects could be rescued in the GSNOR knock-out mice. We further verified that the S-nitrosation of CaMKIIα was responsible for the CaMKIIα synaptosomal accumulation by mutating CaMKIIα S-nitrosated sites (C280/C289). Upregulation of the NO signaling pathway rescued the cognitive impairment in GSNOR transgenic mice. In summary, our research demonstrates that GSNOR impairs cognitive function in aging and it could serve as a new potential target for the treatment of age-related cognitive impairment. In contrast to the free radical theory of aging, NO signaling deficiency may be the main mediator of age-related cognitive impairment.SIGNIFICANCE STATEMENT This study indicated that S-nitrosoglutathione reductase (GSNOR), a key protein S-nitrosation metabolic enzyme, is a new potential target in age-related cognitive impairment; and in contrast to the free radical theory of aging, NO signaling deficiency may be the main cause of this process. In addition, increased GSNOR expression during aging decreases S-nitrosation of CaMKIIα and reduces CaMKIIα synaptosomal accumulation. To our knowledge, it is for the first time to show the cellular function regulation of CaMKIIα by GSNOR-dependent S-nitrosation as a new post-translational modification after its phosphorylation was explored. These findings elucidate a novel mechanism of age-related cognitive impairment and may provide a new potential target and strategy for slowing down this process.
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de Macedo LDED, De Oliveira TCG, Soares FC, Bento-Torres J, Bento-Torres NVO, Anthony DC, Picanço-Diniz CW. Beneficial effects of multisensory and cognitive stimulation in institutionalized elderly: 12-months follow-up. Clin Interv Aging 2015; 10:1351-9. [PMID: 26316730 PMCID: PMC4547661 DOI: 10.2147/cia.s80997] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We previously demonstrated the beneficial effects of a multisensory and cognitive stimulation program, consisting of 48 sessions, twice a week, to improve the cognition of elderly subjects living either in long-term care institutions (institutionalized – I) or in communities with their families (noninstitutionalized – NI). In the present study, we evaluated these subjects after the end of the intervention and compared the rate of age-related cognitive decline of those living in an enriched community environment (NI group, n=15, 74.1±3.9 years old) with those living in the impoverished environment of long-term care institutions (I group, n=20, 75.1±6.8 years old). Both groups participated fully in our stimulation program. Over 1 year, we conducted revaluations at five time points (2 months, 4 months, 6 months, 8 months, and 12 months) after the completion of the intervention. Both elderly groups were evaluated with the mini-mental state examination and selected language tests. Progressive cognitive decline was observed in both groups over the period. Indeed, it took only 4–6 months after the end of the stimulation program for significant reductions in language test scores to become apparent. However, earlier reductions in test scores were mainly associated with I group, and linguistic prosody test scores were significantly affected by institutionalization and time, two variables that interacted and reduced these scores. Moreover, I group reduced the Montréal cognitive assessment battery language tests scores 4 months before NI group. It remains to be investigated what mechanisms may explain the earlier and more intense language losses in institutionalized elderly.
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Affiliation(s)
- Liliane Dias E Dias de Macedo
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil
| | - Thaís Cristina Galdino De Oliveira
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil
| | - Fernanda Cabral Soares
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil
| | - João Bento-Torres
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil ; College of Physical Therapy and Occupational Therapy, Federal University of Para, Belem, Para, Brazil
| | - Natáli Valim Oliver Bento-Torres
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil ; College of Physical Therapy and Occupational Therapy, Federal University of Para, Belem, Para, Brazil
| | - Daniel Clive Anthony
- Laboratory of Experimental Neuropathology, Department of Pharmacology, University of Oxford, Oxford, England, UK
| | - Cristovam Wanderley Picanço-Diniz
- Laboratory of Investigations in Neurodegeneration and Infection, Institute of Biological Sciences, University Hospital João de Barros Barreto, Federal University of Pará, Belem, Para, Brazil
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Rasmussen HB, Bagger YZ, Tankó LB, Qin G, Christiansen C, Werge T. Cognitive impairment in elderly women: the relative importance of selected genes, lifestyle factors, and comorbidities. Neuropsychiatr Dis Treat 2006; 2:227-33. [PMID: 19412468 PMCID: PMC2671785 DOI: 10.2147/nedt.2006.2.2.227] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND A variety of factors contribute to the development of cognitive impairment in elderly people. Previous studies have focused upon a single or a few risk factors. In this study we assessed and compared the significance of a wide variety of potential risk factors for cognitive impairment in postmenopausal women. METHODS A total of 208 pairs of elderly women (mean age = 73.2 years) were examined in a cross-sectional case-control study. Each pair consisted of a case (with impaired cognition) and a control subject matched by age and educational status. Cognitive functions were determined using a modified version of the Blessed test. Participants were also subjected to a general clinical examination and they were interviewed to collect information on lifestyle practices and comorbid disorders. Genotypes for the apolipoprotein E (APOE) epsilon4, catechol-O-methyltransferase (COMT) Val/Met, and brain-derived neurotropic growth factor (BDNF) Val/Met polymorphisms were determined. Data were analyzed by conditional logistic regression. RESULTS We identified a set of risk factors for age-related cognitive impairment. A statistical model for assessment of the importance of these factors was constructed. The factors in this model were physical exercise (odds ratio [OR] = 0.50, 95% confidence interval [CI] = 0.32-0.78), regular alcohol consumption (OR = 0.49, 95% CI = 0.29-0.83), metabolic syndrome (OR = 2.83, 95% CI = 1.26-6.39), depression (OR = 3.24, 95% CI = 1.28-8.22), and the APOE epsilon4 allele (OR = 1.76, 95% CI = 1.09-2.83). Also COMT genotype was present as a risk factor in the statistical model (p = 0.08). CONCLUSIONS Lifestyle risk factors, comorbid disorders, and genetic factors contribute to development of age-related cognitive impairment. The two former groups of risk factors appear to be particular important in this respect.
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Affiliation(s)
- Henrik Berg Rasmussen
- Research Institute of Biological Psychiatry, H:S Sct. Hans Psychiatric Hospital, University of Copenhagen, Roskilde, Denmark.
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