1
|
Mian M, Tahiri J, Eldin R, Altabaa M, Sehar U, Reddy PH. Overlooked cases of mild cognitive impairment: Implications to early Alzheimer's disease. Ageing Res Rev 2024; 98:102335. [PMID: 38744405 PMCID: PMC11180381 DOI: 10.1016/j.arr.2024.102335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
Mild cognitive impairment (MCI) marks the initial phase of memory decline or other cognitive functions like language or spatial perception, while individuals typically retain the capacity to carry out everyday tasks independently. Our comprehensive article investigates the intricate landscape of cognitive disorders, focusing on MCI and Alzheimer's disease (AD) and Alzheimer's disease-related dementias (ADRD). The study aims to understand the signs of MCI, early Alzheimer's disease, and healthy brain aging while assessing factors influencing disease progression, pathology development and susceptibility. A systematic literature review of over 100 articles was conducted, emphasizing MCI, AD and ADRD within the elderly populations. The synthesis of results reveals significant findings regarding ethnicity, gender, lifestyle, comorbidities, and diagnostic tools. Ethnicity was found to influence MCI prevalence, with disparities observed across diverse populations. Gender differences were evident in cognitive performance and decline, highlighting the need for personalized management strategies. Lifestyle factors and comorbidities were identified as crucial influencers of cognitive health. Regarding diagnostic tools, the Montreal Cognitive Assessment (MoCA) emerged as superior to the Mini-Mental State Examination (MMSE) in early MCI detection. Overall, our article provides insights into the multifaceted nature of cognitive disorders, emphasizing the importance of tailored interventions and comprehensive assessment strategies for effective cognitive health management.
Collapse
Affiliation(s)
- Maamoon Mian
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Jihane Tahiri
- School of Biology, Texas Tech University, Lubbock, TX 79430, USA
| | - Ryan Eldin
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
| | - Mohamad Altabaa
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Ujala Sehar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Nutritional Sciences Department, College Human Sciences, Texas Tech University, Lubbock, TX 79409; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Public Health, Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language, and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
| |
Collapse
|
2
|
Firth W, Pye KR, Weightman Potter PG. Astrocytes at the intersection of ageing, obesity, and neurodegeneration. Clin Sci (Lond) 2024; 138:515-536. [PMID: 38652065 DOI: 10.1042/cs20230148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/05/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
Once considered passive cells of the central nervous system (CNS), glia are now known to actively maintain the CNS parenchyma; in recent years, the evidence for glial functions in CNS physiology and pathophysiology has only grown. Astrocytes, a heterogeneous group of glial cells, play key roles in regulating the metabolic and inflammatory landscape of the CNS and have emerged as potential therapeutic targets for a variety of disorders. This review will outline astrocyte functions in the CNS in healthy ageing, obesity, and neurodegeneration, with a focus on the inflammatory responses and mitochondrial function, and will address therapeutic outlooks.
Collapse
Affiliation(s)
- Wyn Firth
- School of Optometry and Vision Sciences, Cardiff University, Cardiff, U.K
| | - Katherine R Pye
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, U.K
| | - Paul G Weightman Potter
- Department of Clinical and Biomedical Sciences, University of Exeter Medical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, U.K
| |
Collapse
|
3
|
Bozkurt ME, Erdogan T, Catikkas NM, Ozkok S, Kilic C, Bahat G, Karan MA. Undernutrition in obese older adults by fat percentage. Aging Clin Exp Res 2024; 36:3. [PMID: 38261071 PMCID: PMC10805819 DOI: 10.1007/s40520-023-02650-1] [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: 08/19/2023] [Accepted: 11/27/2023] [Indexed: 01/24/2024]
Abstract
OBJECTIVE The prevalence of obesity by fat percentage has seen a steady increase in older adults in recent years, secondary to increases in fat mass in body composition, even in healthy aging. Malnutrition is a common geriatric syndrome with serious clinical outcomes. Increases in fat mass and waist circumference with healthy aging should not prevent the risk of malnutrition from being masked. Malnutrition is often ignored in obese older people due to low BMI cut-off values in many screening tests. The present study seeks to raise awareness of the need to assess the frequency of undernutrition and related factors in obese older adults. METHODS The data of 2013 community-dwelling patients aged ≥ 60 years who applied to a university geriatrics outpatient clinic between April 2012 and November 2022 were analyzed retrospectively, of which 296 were found to be obese based on fat percentage and were included in the study. Demographic data and the presence of any geriatric syndromes were obtained retrospectively from the patient files, functional status was assessed using the KATZ Activities of Daily Living (ADL) Scale and the LAWTON-BRODY Instrumental Activities of Daily Living Scale (IADL); frailty was screened using FRAIL-scale; and the sample was assessed for malnutrition using the Mini Nutritional Assessment-Short Form (MNA-SF), with undernutrition defined as an MNA-SF score of [Formula: see text] The patients' fat percentage and weight were measured using a bioimpedance analyzer. Fatty obesity was defined using the Zoico methodology (fat percentage [Formula: see text] 27.3% for males, [Formula: see text] 40.7% for females)[Formula: see text] handgrip strength (HGS) was measured using a hand dynamometer, and probable sarcopenia was defined as low HGS based on regional cut-off values (35 kg for males, 20 kg for females). RESULTS The mean age of the 296 fatty obese older adults (102 males/194 females) was 74.4 + 6.5 years, and the median fat was 42.2% (27.4-59.5). Undernutrition was detected in 19.6% of the patients based on MNA-SF screening. A univariate analysis revealed age, sex, educational status, daily physical activity status, depression, difficulty in swallowing, chewing difficulty, probable sarcopenia, number of chronic diseases, and IADL to be associated with undernutrition, while a multivariate logistic regression analysis revealed depression [OR = 3.662, 95% CI (1.448-9.013), p = 0.005] and daily physical activity status [OR:0.601, 95% CI (0.417-0.867), p = 0.006] to be independently associated with malnutrition in obese older adults based on fat percentage. CONCLUSION The present study clarifies the significance of undernutrition in obese older adults also in our country, and recommends undernutrition screening to be carried out, by fat percentage, on obese older adults, especially with depression and low daily physical activity.
Collapse
Affiliation(s)
- Meris Esra Bozkurt
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey.
| | - Tugba Erdogan
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey
| | | | - Serdar Ozkok
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey
| | - Cihan Kilic
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey
| | - Gulistan Bahat
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey
| | - Mehmet Akif Karan
- Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University Capa, 34390, Istanbul, Turkey
| |
Collapse
|
4
|
Dong W, Kan L, Zhang X, Li M, Wang M, Cao Y. Association between body mass index and cognitive impairment in Chinese older adults. Front Public Health 2023; 11:1255101. [PMID: 37927863 PMCID: PMC10622794 DOI: 10.3389/fpubh.2023.1255101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/05/2023] [Indexed: 11/07/2023] Open
Abstract
Background The association between body mass index (BMI) and the risk of cognitive impairment remains uncertain. Relatively few studies have analyzed the dose-response relationship between BMI and cognitive impairment. This article utilized nationally representative longitudinal data to assess the association between BMI and cognitive impairment in Chinese older adults. Objective The present study aimed to analyze the association between BMI and cognitive impairment in Chinese older people, including an investigation of gender differences and the dose-response relationship. Methods Data were obtained from the China Health and Retirement Longitudinal Study database in 2015 and 2018. The present study used logistic regression to analyze the relationship between baseline BMI and cognitive impairment, and adopted a restricted cubic spline model to plot dose-response curves for baseline BMI and prevalence of risk of cognitive impairment. Results The mean BMI of the survey population was 23.48 ± 3.66 kg/m2, and the detection rate of cognitive impairment was 34.2%. Compared to the normal weight group (18.5 ≤ BMI < 23.9 kg/m2), the odds ratio (OR) for cognitive impairment was 1.473 (95% CI: 1.189-1.823) in the underweight group (BMI < 18.5 kg/m2), whereas the corresponding OR was 0.874 (95% CI: 0.776-0.985) for the overweight or obese group (BMI ≥ 24.0 kg/m2) after adjusting for confounders. Gender subgroup analysis showed that overweight or obese older women were less likely to develop cognitive impairment (OR = 0.843; 95% CI: 0.720-0.987). The results of the restricted cubic spline analysis revealed a curvilinear L-shaped relationship between BMI and the risk of cognitive impairment (P non-linearity <0.05). In particular, the risk of cognitive impairment was higher at a lower baseline BMI. In contrast, BMI in the range of 23.2-27.8 kg/m2 was associated with a decreased risk of cognitive impairment. Conclusion BMI is a dose-dependent related factor for cognitive impairment in Chinese older adults. Being underweight is a risk factor for the development of cognitive impairment, while being overweight or obese is less likely to have cognitive impairment, particularly in female older people. Keeping BMI ranging from 23.2-27.8 kg/m2 in older adults can help maintain cognitive function.
Collapse
Affiliation(s)
- Wenshuo Dong
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
| | - Lichao Kan
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
| | - Xinyue Zhang
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
| | - Mengli Li
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
| | - Meijuan Wang
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
| | - Yingjuan Cao
- School of Nursing and Rehabilitation, Shandong University, Jinan, Shandong, China
- Department of Nursing, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Nursing Theory and Practice Innovation Research Center, Shandong University, Jinan, Shandong, China
| |
Collapse
|
5
|
Cai Y, Liu P, Zhou X, Yuan J, Chen Q. Probiotics therapy show significant improvement in obesity and neurobehavioral disorders symptoms. Front Cell Infect Microbiol 2023; 13:1178399. [PMID: 37249983 PMCID: PMC10213414 DOI: 10.3389/fcimb.2023.1178399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Obesity is a complex metabolic disease, with cognitive impairment being an essential complication. Gut microbiota differs markedly between individuals with and without obesity. The microbial-gut-brain axis is an important pathway through which metabolic factors, such as obesity, affect the brain. Probiotics have been shown to alleviate symptoms associated with obesity and neurobehavioral disorders. In this review, we evaluated previously published studies on the effectiveness of probiotic interventions in reducing cognitive impairment, depression, and anxiety associated with obesity or a high-fat diet. Most of the probiotics studied have beneficial health effects on obesity-induced cognitive impairment and anxiety. They positively affect immune regulation, the hypothalamic-pituitary-adrenal axis, hippocampal function, intestinal mucosa protection, and glucolipid metabolism regulation. Probiotics can influence changes in the composition of the gut microbiota and the ratio between various flora. However, probiotics should be used with caution, particularly in healthy individuals. Future research should further explore the mechanisms underlying the gut-brain axis, obesity, and cognitive function while overcoming the significant variation in study design and high risk of bias in the current evidence.
Collapse
|
6
|
Velescu DR, Marc MS, Pescaru CC, Traila D, Vaștag E, Papava I, Motofelea AC, Ciuca IM, Manolescu D, Oancea C. Impact of CPAP Therapy Adherence on Global Cognition in Patients with Moderate to Severe Obstructive Sleep Apnea: A One-Year Follow-Up. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050846. [PMID: 37241079 DOI: 10.3390/medicina59050846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/18/2023] [Accepted: 04/25/2023] [Indexed: 05/28/2023]
Abstract
Background: Obstructive sleep apnea increases (OSA) cognitive impairment risk. The objective of this study was to determine the impact of continuous positive airway pressure (CPAP) adherence on global cognition using the Montreal Cognitive Assessment questionnaire (MoCA). Materials and Methods: Thirty-four new patients diagnosed with moderate or severe OSA (apnea-hypopnea index AHI ≥ 15 events/h) from the CPAP group were compared with thirty-one moderate to severe OSA patients from the no-CPAP group. In addition, all patients completed the MoCA test, a patient health questionnaire (PHQ-9) for depressive symptoms, and a generalized anxiety questionnaire (GAD-7) for anxiety symptoms, at baseline, after 6 months, and after 1 year. Results: At baseline, there were no significant differences between the two groups regarding total MoCA scores, 20.9 ± 3.5 CPAP group to 19.7 ± 2.9 no-CPAP group (p = 0.159), PHQ-9 (p = 0.651), and GAD-7 (p = 0.691). After one year, improvement was observed for a total MoCA score of 22.7 ± 3.5 (p < 0.001) for the CPAP group, and significant variance of score between groups was more accentuated for delayed recall and attention (p < 0.001) sub-topic. Moreover, PHQ-9, GAD-7 scores, and the Epworth Sleepiness Scale (ESS) decreased significantly (p < 0.001) after CPAP therapy. The MoCA score was significantly correlated with years of education (r = 0.74, p < 0.001) and had a negative correlation with body mass index (BMI) (r = -0.34), ESS (r = -0.30) and PHQ-9 (r = -0.34). Conclusions: One year of CPAP adherence improved global cognition associated with OSA.
Collapse
Affiliation(s)
- Diana Raluca Velescu
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Monica Steluta Marc
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Hospital of Infectious Diseases and Pneumophthisiology 'Dr. Victor Babes', 300173 Timisoara, Romania
| | - Camelia Corina Pescaru
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Hospital of Infectious Diseases and Pneumophthisiology 'Dr. Victor Babes', 300173 Timisoara, Romania
| | - Daniel Traila
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Hospital of Infectious Diseases and Pneumophthisiology 'Dr. Victor Babes', 300173 Timisoara, Romania
| | - Emanuela Vaștag
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Hospital of Infectious Diseases and Pneumophthisiology 'Dr. Victor Babes', 300173 Timisoara, Romania
| | - Ion Papava
- Neuroscience Department, NEUROPSY-COG Center for Cognitive Research in Neuropsychiatric Pathology, 'Victor Babes', University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Alexandru Catalin Motofelea
- Internal Medicine Department, 'Victor Babes' University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq, 300041 Timisoara, Romania
| | - Ioana Mihaiela Ciuca
- Pediatric Department, 'Victor Babes' University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Diana Manolescu
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Radiology and Medical Imaging Department, 'Victor Babes' University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Cristian Oancea
- Pulmonary Department, Center for Research and Innovation in Precision Medicine of Respiratory Diseases (CRIPMRD), 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
- Clinical Hospital of Infectious Diseases and Pneumophthisiology 'Dr. Victor Babes', 300173 Timisoara, Romania
| |
Collapse
|