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  1. Book ; Online: Biology of Cognitive Aging: Model Systems, Technologies and Beyond

    Murakami, Shin

    2017  

    Abstract: ... in a wide variety of model species, including worms, fruit flies, insects, snails, fishes, and rodents.- ...

    Abstract Welcome! We, humans, tend to experience forgetfulness when we get old. The forgetfulness may become more serious memory impairment, dementia. Presumably, we have known it for a long time, but we still do not know the mechanism behind. A normal part of forgetfulness is called age-related memory impairment (AMI), which is considered the first step towards mild cognitive impairment (MCI; transition state) and dementia (disease state). The majority of dementia is attributable to Alzheimer's disease (AD). Progression to dementia occurs at a high rate in patients with AMI. This eBook covers exciting but yet challenging field of cognitive aging. AMI is specific to neural tissues of the brain and is considered to be segmental aging. It happens not only to humans but also to a variety of species. Learning and memory are vulnerable to aging in a wide variety of model species, including worms, fruit flies, insects, snails, fishes, and rodents.-

    Aging specifically reduces the ability to learn new information but leaves "old" memories and procedural memory intact. A comparative approach including the use of model systems seems to facilitate understanding of the molecular mechanisms that lead to AMI and AD. We advocate research on model systems. This eBook also provides the first manuscript co-authored with an AD patient to create a feedback loop from patients incorporated into research. We also included a manuscript on the semi-automated system that was inspired by such a feedback. Those may place a nice flavor to this exciting series of comparative research on cognitive aging. We hope you enjoy this eBook. Warm regards, Shin Murakami, Ph.D.Welcome! We, humans, tend to experience forgetfulness when we get old. The forgetfulness may become more serious memory impairment, dementia. Presumably, we have known it for a long time, but we still do not know the mechanism behind.-

    A normal part of forgetfulness is called age-related memory impairment (AMI), which is considered the first step towards mild cognitive impairment (MCI; transition state) and dementia (disease state). The majority of dementia is attributable to Alzheimer's disease (AD). Progression to dementia occurs at a high rate in patients with AMI. This eBook covers exciting but yet challenging field of cognitive aging. AMI is specific to neural tissues of the brain and is considered to be segmental aging. It happens not only to humans but also to a variety of species. Learning and memory are vulnerable to aging in a wide variety of model species, including worms, fruit flies, insects, snails, fishes, and rodents. Aging specifically reduces the ability to learn new information but leaves "old" memories and procedural memory intact. A comparative approach including the use of model systems seems to facilitate understanding of the molecular mechanisms that lead to AMI and AD.-
    Keywords Genetics ; Science (General)
    Size 1 electronic resource (145 p.)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT020095066
    ISBN 9782889451449 ; 2889451445
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Book: Shin hōsha yakuhingaku

    Murakami, Yukio

    yakugaku no hōsha kagaku

    1983  

    Author's details Murakami Yukio, Kojima Masaharu, Yoshizawa Yasuo
    MeSH term(s) Radiochemistry ; Radioisotopes
    Language Japanese
    Size ii, 9, 356 p. :, ill.
    Publisher Nanzandō
    Publishing place Tōkyō
    Document type Book
    ISBN 9784525721213 ; 4525721219
    Database Catalogue of the US National Library of Medicine (NLM)

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  3. Article: Editorial: Insights in neurocognitive aging and behavior: 2022.

    Nielson, Kristy A / Venneri, Annalena / Murakami, Shin

    Frontiers in aging neuroscience

    2024  Volume 16, Page(s) 1361839

    Language English
    Publishing date 2024-01-16
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2558898-9
    ISSN 1663-4365
    ISSN 1663-4365
    DOI 10.3389/fnagi.2024.1361839
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Artificial Intelligence-Assisted Meta-Analysis of the Frequency of ACE I/D Polymorphisms in Centenarians and Other Long-Lived Individuals.

    Li, Lingxuan / Murakami, Shin

    International journal of molecular sciences

    2023  Volume 24, Issue 4

    Abstract: Current research on the angiotensin-converting-enzyme ( ...

    Abstract Current research on the angiotensin-converting-enzyme (
    MeSH term(s) Aged, 80 and over ; Humans ; Artificial Intelligence ; Centenarians ; Genotype ; Peptidyl-Dipeptidase A/genetics ; Polymorphism, Genetic
    Chemical Substances ACE protein, human (EC 3.4.15.1) ; Peptidyl-Dipeptidase A (EC 3.4.15.1)
    Language English
    Publishing date 2023-02-08
    Publishing country Switzerland
    Document type Meta-Analysis ; Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24043411
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Watching the bacterial RNA polymerase transcription reaction by time-dependent soak-trigger-freeze X-ray crystallography.

    Shin, Yeonoh / Murakami, Katsuhiko S

    The Enzymes

    2021  Volume 49, Page(s) 305–314

    Abstract: RNA polymerase (RNAP) is the central enzyme of gene expression, which transcribes DNA to RNA. All cellular organisms synthesize RNA with highly conserved multi-subunit DNA-dependent RNAPs, except mitochondrial RNA transcription, which is carried out by a ...

    Abstract RNA polymerase (RNAP) is the central enzyme of gene expression, which transcribes DNA to RNA. All cellular organisms synthesize RNA with highly conserved multi-subunit DNA-dependent RNAPs, except mitochondrial RNA transcription, which is carried out by a single-subunit RNAP. Over 60 years of extensive research has elucidated the structures and functions of cellular RNAPs. In this review, we introduce a brief structural feature of bacterial RNAP, the most well characterized model enzyme, and a novel experimental approach known as "Time-dependent soak-trigger-freeze X-ray crystallography" which can be used to observe the RNA synthesis reaction at atomic resolution in real time. This principle methodology can be used for elucidating fundamental mechanisms of cellular RNAP transcription.
    MeSH term(s) Crystallography, X-Ray ; DNA-Directed RNA Polymerases/genetics ; DNA-Directed RNA Polymerases/metabolism ; RNA, Bacterial/genetics ; Transcription, Genetic
    Chemical Substances RNA, Bacterial ; DNA-Directed RNA Polymerases (EC 2.7.7.6)
    Language English
    Publishing date 2021-07-24
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 0423-2607
    ISSN 0423-2607
    DOI 10.1016/bs.enz.2021.06.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Biological and disease hallmarks of Alzheimer's disease defined by Alzheimer's disease genes.

    Murakami, Shin / Lacayo, Patricia

    Frontiers in aging neuroscience

    2022  Volume 14, Page(s) 996030

    Abstract: An increasing number of genes associated with Alzheimer's disease (AD genes) have been reported. However, there is a lack of an overview of the genetic relationship between AD and age-related comorbidities, such as hypertension, myocardial infarction, ... ...

    Abstract An increasing number of genes associated with Alzheimer's disease (AD genes) have been reported. However, there is a lack of an overview of the genetic relationship between AD and age-related comorbidities, such as hypertension, myocardial infarction, and diabetes, among others. Previously, we used Reactome analysis in conjunction with the AD genes to identify both the biological pathways and the neurological diseases. Here we provide systematic updates on the genetic and disease hallmarks defined by AD genes. The analysis identified 50 pathways (defined as biological hallmarks). Of them, we have successfully compiled them into a total of 11 biological hallmarks, including 6 existing hallmarks and 5 newly updated hallmarks. The AD genes further identified 20 diverse diseases (defined as disease hallmarks), summarized into three major categories: (1) existing hallmarks, including neurological diseases; (2) newly identified hallmarks, including common age-related diseases such as diabetes, hypertension, other cardiovascular diseases, and cancers; (3) and other health conditions; note that cancers reportedly have an inverse relation with AD. We previously suggested that a single gene is associated with multiple neurological diseases, and we are further extending the finding that AD genes are associated with common age-related comorbidities and others. This study indicates that the heterogeneity of Alzheimer's disease predicts complex clinical presentations in people living with AD. Taken together, the genes define AD as a part of age-related comorbidities with shared biological mechanisms and may raise awareness of a healthy lifestyle as potential prevention and treatment of the comorbidities.
    Language English
    Publishing date 2022-11-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2558898-9
    ISSN 1663-4365
    ISSN 1663-4365
    DOI 10.3389/fnagi.2022.996030
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Genetic Networks of Alzheimer's Disease, Aging, and Longevity in Humans.

    Balmorez, Timothy / Sakazaki, Amy / Murakami, Shin

    International journal of molecular sciences

    2023  Volume 24, Issue 6

    Abstract: Human genomic analysis and genome-wide association studies (GWAS) have identified genes that are risk factors for early and late-onset Alzheimer's disease (AD genes). Although the genetics of aging and longevity have been extensively studied, previous ... ...

    Abstract Human genomic analysis and genome-wide association studies (GWAS) have identified genes that are risk factors for early and late-onset Alzheimer's disease (AD genes). Although the genetics of aging and longevity have been extensively studied, previous studies have focused on a specific set of genes that have been shown to contribute to or are a risk factor for AD. Thus, the connections among the genes involved in AD, aging, and longevity are not well understood. Here, we identified the genetic interaction networks (referred to as pathways) of aging and longevity within the context of AD by using a gene set enrichment analysis by Reactome that cross-references more than 100 bioinformatic databases to allow interpretation of the biological functions of gene sets through a wide variety of gene networks. We validated the pathways with a threshold of
    MeSH term(s) Humans ; Gene Regulatory Networks ; Genome-Wide Association Study ; Alzheimer Disease/genetics ; Interleukin-13/genetics ; Interleukin-3/genetics
    Chemical Substances Interleukin-13 ; Interleukin-3
    Language English
    Publishing date 2023-03-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24065178
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Editorial: Biology of Cognitive Aging: Model Systems, Technologies, and Beyond.

    Murakami, Shin

    Frontiers in genetics

    2016  Volume 6, Page(s) 366

    Language English
    Publishing date 2016-01-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606823-0
    ISSN 1664-8021
    ISSN 1664-8021
    DOI 10.3389/fgene.2015.00366
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Genetic Networks of Alzheimer’s Disease, Aging, and Longevity in Humans

    Timothy Balmorez / Amy Sakazaki / Shin Murakami

    International Journal of Molecular Sciences, Vol 24, Iss 5178, p

    2023  Volume 5178

    Abstract: Human genomic analysis and genome-wide association studies (GWAS) have identified genes that are risk factors for early and late-onset Alzheimer’s disease (AD genes). Although the genetics of aging and longevity have been extensively studied, previous ... ...

    Abstract Human genomic analysis and genome-wide association studies (GWAS) have identified genes that are risk factors for early and late-onset Alzheimer’s disease (AD genes). Although the genetics of aging and longevity have been extensively studied, previous studies have focused on a specific set of genes that have been shown to contribute to or are a risk factor for AD. Thus, the connections among the genes involved in AD, aging, and longevity are not well understood. Here, we identified the genetic interaction networks (referred to as pathways) of aging and longevity within the context of AD by using a gene set enrichment analysis by Reactome that cross-references more than 100 bioinformatic databases to allow interpretation of the biological functions of gene sets through a wide variety of gene networks. We validated the pathways with a threshold of p -value < 1.00 × 10 −5 using the databases to extract lists of 356 AD genes, 307 aging-related (AR) genes, and 357 longevity genes. There was a broad range of biological pathways involved in AR and longevity genes shared with AD genes. AR genes identified 261 pathways within the threshold of p < 1.00 × 10 −5 , of which 26 pathways (10% of AR gene pathways) were further identified by overlapping genes among AD and AR genes. The overlapped pathways included gene expression ( p = 4.05 × 10 −11 ) including ApoE, SOD2, TP53, and TGFB1 ( p = 2.84 × 10 −10 ); protein metabolism and SUMOylation, including E3 ligases and target proteins ( p = 1.08 × 10 −7 ); ERBB4 signal transduction ( p = 2.69 × 10 −6 ); the immune system, including IL-3 and IL-13 ( p = 3.83 × 10 −6 ); programmed cell death ( p = 4.36 × 10 −6 ); and platelet degranulation ( p = 8.16 × 10 −6 ), among others. Longevity genes identified 49 pathways within the threshold, of which 12 pathways (24% of longevity gene pathways) were further identified by overlapping genes among AD and longevity genes. They include the immune system, including IL-3 and IL-13 ( p = 7.64 × 10 −8 ), plasma lipoprotein assembly, ...
    Keywords hallmark of aging ; age-related comorbidity ; centenarian ; dementia ; epigenetics ; life extension ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 333
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: 

    Fujiwara, Tao / Khine, Phyo Kay / Hori, Kiyotaka / Shin, Thant / Murakami, Noriaki / Schneider, Harald

    PhytoKeys

    2022  Volume 201, Page(s) 23–34

    Abstract: A new species of the species-rich fern ... ...

    Abstract A new species of the species-rich fern genus
    Language English
    Publishing date 2022-06-20
    Publishing country Bulgaria
    Document type Journal Article
    ZDB-ID 2579891-1
    ISSN 1314-2003 ; 1314-2011
    ISSN (online) 1314-2003
    ISSN 1314-2011
    DOI 10.3897/phytokeys.201.84911
    Database MEDical Literature Analysis and Retrieval System OnLINE

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