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  • 1
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2022
    In:  International Journal of Theoretical Physics Vol. 61, No. 3 ( 2022-03)
    In: International Journal of Theoretical Physics, Springer Science and Business Media LLC, Vol. 61, No. 3 ( 2022-03)
    Type of Medium: Online Resource
    ISSN: 0020-7748 , 1572-9575
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2016168-2
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  • 2
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2022
    In:  Journal of Biological Physics Vol. 48, No. 2 ( 2022-06), p. 227-236
    In: Journal of Biological Physics, Springer Science and Business Media LLC, Vol. 48, No. 2 ( 2022-06), p. 227-236
    Abstract: Widespread genotyping of human populations in environmental homeostasis has created opportunities to quantify how environmental parameters affect the genomic distribution of variants in healthy populations. This represents an ongoing natural experiment upon the human species that can only be understood through developing models of adaptation. By examining the information dynamics of optimal SNP distributions within such populations, “adaptive forces” on genomic variants can be quantified through comparisons between different populations. To this end, we are performing double-blind scans of SNPs in order to ascertain any potential smooth functional relationships between the frequencies of the variants and changes in quantified environmental parameters. At present, we have sequentially examined more than twenty thousand SNPs (on chromosome 3) of nine homeostatic native populations for potential adaptive flagging of the variants as functions of 15 environmental parameters. Our first significant flag has related rs1010211 to viral pathogens in mammalian hosts. Such pathogens present a significant risk for the emergence of new infectious diseases in humans. This genomic variant is within the gene TNIK, which is a germinal center kinase (GCK). GCKs are participants in both adaptive and innate immune regulation. However, the function of TNIK is not fully understood. We quantify the adaptive force on the C allele due to the pathogens as 0.04 GEU’s/viral species.
    Type of Medium: Online Resource
    ISSN: 0092-0606 , 1573-0689
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2016734-9
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Elsevier BV ; 2020
    In:  Journal of the American Medical Directors Association Vol. 21, No. 11 ( 2020-11), p. 1735-1739
    In: Journal of the American Medical Directors Association, Elsevier BV, Vol. 21, No. 11 ( 2020-11), p. 1735-1739
    Type of Medium: Online Resource
    ISSN: 1525-8610
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
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  • 4
    Online Resource
    Online Resource
    S. Karger AG ; 2021
    In:  Dementia and Geriatric Cognitive Disorders Vol. 50, No. 6 ( 2021), p. 548-553
    In: Dementia and Geriatric Cognitive Disorders, S. Karger AG, Vol. 50, No. 6 ( 2021), p. 548-553
    Abstract: 〈 b 〉 〈 i 〉 Introduction: 〈 /i 〉 〈 /b 〉 There is little research on factors predicting conversion to dementia in early-onset mild cognitive impairment (eoMCI), a transitional stage between healthy ageing and dementia in individuals below the age of 65. We aimed to examine whether sociodemographic and clinical factors at initial presentation predicted dementia progression in a cohort of eoMCI patients attending a memory service, at a university teaching hospital in the UK. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 This is a retrospective case note study of individuals diagnosed with eoMCI between 2000 and 2013 at the Younger Person’s Memory Service (YPMS) in Leicestershire, England. Data collected at assessment included social factors, demographic characteristics, and medical and psychiatric history, as well as standardized cognitive assessment scores. Variables were analysed using χ 〈 sup 〉 2 〈 /sup 〉 or independent sample 〈 i 〉 t 〈 /i 〉 tests to identify associations. A Cox regression survival analysis was done to identify predictive factors for dementia conversion. An ROC analysis for total CAMCOG was used to investigate sensitivity and specificity for dementia converters versus non-converters. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 Out of 531 subjects who attended YPMS, 65 patients were given a diagnosis of eoMCI (47.7% female; mean age 56.4 ± 7.54 years). Of these, 21 (32.3%) converted to dementia during their course within the service. Comparison between subgroups revealed a significant association between dementia conversion and higher years of education and lower MMSE and CAMCOG (total and subscale) scores at baseline. Smoking history, alcohol use, or medical history such as diabetes or heart disease were not associated with conversion. Cox regression survival analysis showed higher education in years and lower total CAMCOG scores were significant predictors for conversion. Lower scores on the recent memory, remote memory, learning memory, and executive function subscales of the CAMCOG were also significant predictors for conversion. ROC curve analysis for total CAMCOG demonstrated that the best detection of dementia converters can be achieved with a cutoff score of 90.5/107 (sensitivity of 76.2% and specificity of 68.2%). Area under the curve was 0.808 (95% CI: 0.697–0.920). 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 More years in education and lower cognitive scores on CAMCOG at initial assessment are associated with progression to dementia from eoMCI. Further research is required to explore these predictive factors more.
    Type of Medium: Online Resource
    ISSN: 1420-8008 , 1421-9824
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2021
    detail.hit.zdb_id: 1482186-2
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  • 5
    In: Alzheimer's & Dementia, Wiley, Vol. 17, No. S6 ( 2021-12)
    Abstract: Early‐onset Mild Cognitive Impairment (eoMCI) is defined as difficulties in cognition that are worse than in normal ageing for individuals below the age of 65. Some will go on to develop dementia, but there is currently limited research on which risk factors make someone more vulnerable to conversion. The present study aimed to examine whether sociodemographic and clinical factors at the initial presentation predict dementia progression in a cohort of eoMCI patients attending a memory service, at a university teaching hospital in the United Kingdom. Methods A retrospective case note study utilising a database of individuals diagnosed with eoMCI between 2000‐2010 at a Younger Person’s Memory Service (YPMS) in Leicestershire, England. Data collected at assessment included social factors, demographic characteristics, medical and psychiatric history, as well as standardised cognitive assessment scores. Results Out of 531 subjects who attended YPMS between Jan 2000 to Dec 2010, 65 patients were diagnosed with eoMCI (47.7% female; age 56.4 years ±7.54). Of these, 21 individuals (32.3.%) converted to dementia during their course within the service. The mean period of conversion was 30.40 months (±23.08). A comparison between the subgroups revealed a significant association between dementia conversion and higher years of education, lower MMSE and CAMCOG (total and subscores) scores. A subsequent survival analysis found that higher education, lower CAMCOG score, impaired memory (remote, recent, learning) and impaired executive functions, at initial assessment were significant predictors for converting to dementia. Conclusion Higher education, impaired memory and impaired executive functions at initial assessment are associated with a progression to a dementia diagnosis. The present naturalistic study identifies potential characteristics that predict the likelihood of an individual with eoMCI converting to any type of dementia. This has vital clinical implications and additional research is needed to explore these risk factors further.
    Type of Medium: Online Resource
    ISSN: 1552-5260 , 1552-5279
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2201940-6
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  • 6
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2023
    In:  Scientific Reports Vol. 13, No. 1 ( 2023-08-26)
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 13, No. 1 ( 2023-08-26)
    Abstract: As a mechanism to explore the role of environmental adaptation in establishing the optimal distribution of single nucleotide polymophisms (SNPs) within resident homeostatic populations, relationships between quantified environmental parameters and the frequencies of the variants are being explored. We have performed sequential double-blind scans on more than 30% of chromosome 3 in an attempt to discover possible relationships using simple mathematical functions that are indicative of “adaptive forces” on the variants due to specific quantified environmental agents. We have found an association of rs13071758 with rodent zoonotic diseases. This variant is within the FHIT gene, which spans the most fragile of the common fragile sites in human lymphoblasts. FHIT, which is highly sensitive to environmental carcinogens, is partially lost in most human cancers. This finding is consistent with other studies postulating an association between rodent zoonoses and cancer. We quantify the adaptive force on the T allele as 0.28 GEUs per unit of zoonotic rodent host richness.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2615211-3
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