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Al-Kuraishy HM, Jabir MS, Al-Gareeb AI, Albuhadily AK, Albukhaty S, Sulaiman GM, Batiha GES. Evaluation and targeting of amyloid precursor protein (APP)/amyloid beta (Aβ) axis in amyloidogenic and non-amyloidogenic pathways: A time outside the tunnel. Ageing Res Rev 2023; 92:102119. [PMID: 37931848 DOI: 10.1016/j.arr.2023.102119] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
In Alzheimer disease (AD), amyloid precursor protein (APP) and production of amyloid beta (Aβ) which is generated by amyloidogenic pathway is implicated in neurotoxicity and neuronal cell deaths. However, physiological Aβ level is essential to improves neuronal survival, attenuates neuronal apoptosis and has neuroprotective effect. In addition, physiological APP level has neurotrophic effect on the central nervous system (CNS). APP has a critical role in the brain growth and development via activation of long-term potentiation (LTP) and acceleration of neurite outgrowth. Moreover, APP is cleaved by α secretase to form a neuroprotective soluble APP alpha (sAPPα) in non-amyloidogenic pathway. Consequently, this mini-review purposes to highlight the possible beneficial role of APP and Aβ. In addition, this mini-review discussed the modulation of APP processing and Aβ production.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical pharmacology and Medicine, College of Medicine, Mustansiriyah University, Baghdad, Iraq
| | - Majid S Jabir
- Department of Applied science, University of Technology, Iraq.
| | - Ali I Al-Gareeb
- Department of Clinical pharmacology and Medicine, College of Medicine, Mustansiriyah University, Baghdad, Iraq
| | - Ali K Albuhadily
- Department of Clinical pharmacology and Medicine, College of Medicine, Mustansiriyah University, Baghdad, Iraq
| | - Salim Albukhaty
- Department of Chemistry, College of Science, University of Misan, Maysan 62001, Iraq
| | | | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira 22511, Egypt
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Shirvaliloo M. The landscape of histone modifications in epigenomics since 2020. Epigenomics 2022; 14:1465-1477. [PMID: 36710634 DOI: 10.2217/epi-2022-0437] [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] [Indexed: 01/31/2023] Open
Abstract
Histone proteins are a primary component of chromatin; therefore, any modifications to their structure are anticipated to affect the behavior of our genetic material, which is manifested in the form of phenotypic changes at a molecular, cellular or organic level. The majority of histone modifications are of either methylation or acetylation type that regulate gene expression. Though, not all of these modifications are concerned with the direct regulation of gene transcription. Throughout its 13-year run, Epigenomics has never ceased to cover these most gripping epigenetic stories, a significant proportion of which is in the matter of histones and their modifications. As such, the current perspective piece is intended to highlight original histone-oriented contributions published in Epigenomics since 2020.
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Affiliation(s)
- Milad Shirvaliloo
- Infectious & Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, 15731, Iran
- Future Science Group, Unitec House, 2 Albert Place, London, N3 1QB, UK
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Brockdorf Y, Morley JE. Editorial: Nutrition and Dementia. J Nutr Health Aging 2021; 25:590-592. [PMID: 33949623 DOI: 10.1007/s12603-021-1614-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Y Brockdorf
- John E. Morley, MB, BCh, Division of Geriatric Medicine, Saint Louis University, SLUCare Academic Pavilion, Section 2500, 1008 S. Spring Ave., 2nd Floor St. Louis, MO 63110, , Twitter: @drjohnmorley
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Morley JE, Vellas B. Patient-Centered (P4) Medicine and the Older Person. J Am Med Dir Assoc 2019; 18:455-459. [PMID: 28549701 DOI: 10.1016/j.jamda.2017.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 04/04/2017] [Indexed: 12/25/2022]
Affiliation(s)
- John E Morley
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, MO.
| | - Bruno Vellas
- Gérontopôle, CHU Toulouse University Hospital and INSERM U1027, Toulouse, France
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Morley JE. Cognition and Chronic Disease. J Am Med Dir Assoc 2019; 18:369-371. [PMID: 28433119 DOI: 10.1016/j.jamda.2017.02.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 02/10/2017] [Indexed: 02/07/2023]
Affiliation(s)
- John E Morley
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, MO.
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Mullane K, Williams M. The de-Alzheimerization of age-related dementias: implications for drug targets and approaches to effective therapeutics. Curr Opin Pharmacol 2019; 44:62-75. [PMID: 30795894 DOI: 10.1016/j.coph.2019.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 01/10/2019] [Indexed: 12/20/2022]
Abstract
Alzheimer's disease (AD) was differentiated from senile dementia (SD) in 1910 due to its early onset and pathological severity. In 1976, this distinction was upended when SD was redesignated as AD to focus efforts and funding in dementia-related research. AD then became conflated with amyloid plaques and, to a lesser degree, neurofibrillary tangles complicating efforts in understanding dementia causality and its treatment. The resultant four-decade search for therapies-based almost exclusively on amyloid was an exercise in futility. While dementia is a complex, multifactorial syndrome, AD is viewed as a homogeneous, linear disease. An amyloid-agnostic approach is necessary to discover therapeutics for age-related dementias.
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Affiliation(s)
- Kevin Mullane
- Gladstone Institutes, San Francisco, CA, United States
| | - Michael Williams
- Department of Biological Chemistry and Pharmacology, College of Medicine, Ohio State University, Columbus, OH, United States.
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Morley JE, Farr SA, Nguyen AD, Xu F. Editorial: What is the Physiological Function of Amyloid-Beta Protein? J Nutr Health Aging 2019; 23:225-226. [PMID: 30820508 DOI: 10.1007/s12603-019-1162-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- J E Morley
- John E. Morley, MB, BCh, Division of Geriatric Medicine, Saint Louis University School of Medicine, 1402 S. Grand Blvd., M238, St. Louis, MO 63104,
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Morley JE, Berg-Weger M, Lundy J. Editorial: Nonpharmacological Treatment of Cognitive Impairment. J Nutr Health Aging 2018; 22:632-633. [PMID: 29806850 DOI: 10.1007/s12603-018-1036-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- J E Morley
- John E. Morley, MB, BCh, Division of Geriatric Medicine, Saint Louis University School of Medicine, 1402 S. Grand Blvd., M238, St. Louis, MO 63104,
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Morley JE, Sanford A, Bourey R. Sleep Apnea: A Geriatric Syndrome. J Am Med Dir Assoc 2017; 18:899-904. [DOI: 10.1016/j.jamda.2017.08.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 12/25/2022]
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Messinger-Rapport BJ, Little MO, Morley JE, Gammack JK. Clinical Update on Nursing Home Medicine: 2017. J Am Med Dir Assoc 2017; 18:928-940. [PMID: 29080572 DOI: 10.1016/j.jamda.2017.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 01/09/2023]
Abstract
This is the 11th annual Clinical Update from the AMDA meeting article. This year the topics covered are hypertension after the Systolic Blood Pressure Intervention Trial; chronic obstructive pulmonary disease risk factors, diagnosis and management including end-of-life planning, and the difficulties with exacerbations such as breathlessness; diagnosis and treatment of cognitive impairment and dementia; and wound care and pressure ulcer management.
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Affiliation(s)
| | - Milta O Little
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, MO
| | - John E Morley
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, MO.
| | - Julie K Gammack
- Division of Geriatric Medicine, Saint Louis University School of Medicine, St. Louis, MO
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Affiliation(s)
- John E Morley
- Division of Geriatric Medicine, School of Medicine, Saint Louis University, St. Louis, Missouri
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Morley JE. The Future of Long-Term Care. J Am Med Dir Assoc 2017; 18:1-7. [DOI: 10.1016/j.jamda.2016.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/01/2016] [Indexed: 02/07/2023]
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Morley JE. The Complexities of Diabetes in Older Persons. J Am Med Dir Assoc 2016; 17:872-4. [PMID: 27590405 DOI: 10.1016/j.jamda.2016.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 07/22/2016] [Indexed: 12/25/2022]
Affiliation(s)
- John E Morley
- Division of Geriatric Medicine and Endocrinology, Saint Louis University School of Medicine, St. Louis, MO.
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