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Burmistrov DE, Gudkov SV, Franceschi C, Vedunova MV. Sex as a Determinant of Age-Related Changes in the Brain. Int J Mol Sci 2024; 25:7122. [PMID: 39000227 PMCID: PMC11241365 DOI: 10.3390/ijms25137122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/25/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
The notion of notable anatomical, biochemical, and behavioral distinctions within male and female brains has been a contentious topic of interest within the scientific community over several decades. Advancements in neuroimaging and molecular biological techniques have increasingly elucidated common mechanisms characterizing brain aging while also revealing disparities between sexes in these processes. Variations in cognitive functions; susceptibility to and progression of neurodegenerative conditions, notably Alzheimer's and Parkinson's diseases; and notable disparities in life expectancy between sexes, underscore the significance of evaluating aging within the framework of gender differences. This comprehensive review surveys contemporary literature on the restructuring of brain structures and fundamental processes unfolding in the aging brain at cellular and molecular levels, with a focus on gender distinctions. Additionally, the review delves into age-related cognitive alterations, exploring factors influencing the acceleration or deceleration of aging, with particular attention to estrogen's hormonal support of the central nervous system.
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Affiliation(s)
- Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia;
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia;
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603022 Nizhny Novgorod, Russia
| | - Claudio Franceschi
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603022 Nizhny Novgorod, Russia
| | - Maria V. Vedunova
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603022 Nizhny Novgorod, Russia
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Niu Y, Chen X, Chen Y, Yao Z, Chen X, Liu Z, Meng X, Liu Y, Zhao Z, Fan H. A gender recognition method based on EEG microstates. Comput Biol Med 2024; 173:108366. [PMID: 38554661 DOI: 10.1016/j.compbiomed.2024.108366] [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: 09/23/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Gender carries important information related to male and female characteristics, and a large number of studies have attempted to use physiological measurement methods for gender classification. Although previous studies have shown that there exist statistical differences in some Electroencephalographic (EEG) microstate parameters between males and females, it is still unknown that whether these microstate parameters can be used as potential biomarkers for gender classification based on machine learning. METHODS We used two independent resting-state EEG datasets: the first dataset included 74 females and matched 74 males, and the second one included 42 males and matched 42 females. EEG microstate analysis based on modified k-means clustering method was applied, and temporal parameter and nonlinear characteristics (sample entropy and Lempel-Ziv complexity) of EEG microstate sequences were extracted to compare between males and females. More importantly, these microstate temporal parameters and complexity were tried to train six machine learning methods for gender classification. RESULTS We obtained five common microstates for each dataset and each group. Compared with the male group, the female group has significantly higher temporal parameters of microstate B, C, E and lower temporal parameters of microstate A and D, and higher complexity of microstate sequence. When using combination of microstate temporal parameters and complexity or only microstate temporal parameters as classification features in an independent test set (the second dataset), we achieved 95.2% classification accuracy. CONCLUSION Our research findings indicate that the dynamics of microstate have considerable Gender-specific alteration. EEG microstates can be used as neurophysiological biomarkers for gender classification.
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Affiliation(s)
- Yanxiang Niu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Xin Chen
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Yuansen Chen
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Zixuan Yao
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Xuemei Chen
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Ziquan Liu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Xiangyan Meng
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China
| | - Yanqing Liu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China.
| | - Zongya Zhao
- School of Medical Engineering, Xinxiang Medical University, Xinxiang, China.
| | - Haojun Fan
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, China; Wenzhou Safety (Emergency) Institute, Tianjin University, 325000, Wenzhou, China.
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Laudisio A, Dorizzi A, Villeggia F, Latino F, Filippucci D, Zuccalà G. Association of serum uric acid with functional disability in older subjects: a population-based study. Aging Clin Exp Res 2024; 36:96. [PMID: 38630352 PMCID: PMC11023951 DOI: 10.1007/s40520-024-02746-2] [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: 08/07/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND The role of serum uric acid (SUA) in the development of adverse health outcomes in advanced age is still uncertain. AIMS The aim of the study was to assess the association of disability with SUA levels in older community-dwelling subjects. METHODS We assessed the association of disability with SUA in all 351 inhabitants of Tuscania (Italy) aged 75+. Functional ability was estimated using the instrumental activities of daily living (IADLs). RESULTS In logistic regression, increasing SUA levels were associated with disability (OR = 1.22; 95%CI = 1.01-1.48; P = .036), after adjusting. The association was independent of both gender and age (P for interaction > 0.050). SUA levels above 5.5 mg/dL best predicted disability. CONCLUSIONS In older subjects, SUA levels are associated with disability; the cut off level above 5.5 mg/dL might be adopted in pharmacological trials aiming at reducing the incidence and progression of disability by reducing SUA, and for identifying subjects at increased risk of disability.
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Affiliation(s)
- Alice Laudisio
- Department of Medicine, Research Unit of Geriatrics, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, Roma, 21 - 00128, Italy.
- Operative Research Unit of Geriatrics, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, Roma, 200 - 00128, Italy.
| | - Agnese Dorizzi
- Department of Medicine, Research Unit of Geriatrics, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, Roma, 21 - 00128, Italy
| | - Fabio Villeggia
- Department of Medicine, Research Unit of Geriatrics, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, Roma, 21 - 00128, Italy
| | - Francesca Latino
- Department of Medicine, Research Unit of Geriatrics, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, Roma, 21 - 00128, Italy
| | - Daniele Filippucci
- Department of Medicine, Research Unit of Geriatrics, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, Roma, 21 - 00128, Italy
| | - Giuseppe Zuccalà
- Department of Geriatric and Orthopaedic Sciences, Catholic University of Medicine, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, Rome, 00168, Italy
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4
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Somma T, Bove I, Vitulli F, Solari D, Bocchino A, Palmiero C, Scala MR, Zoia C, Cappabianca P, Esposito F. Gender gap in deep brain stimulation for Parkinson's disease: preliminary results of a retrospective study. Neurosurg Rev 2024; 47:63. [PMID: 38263479 PMCID: PMC10806036 DOI: 10.1007/s10143-024-02290-7] [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: 11/12/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/25/2024]
Abstract
Subthalamic nucleus deep brain stimulation (STN-DBS) is an effective treatment of PD for both women and men. However, discussions have been reported about the impact of STN-DBS surgery in PD. The aim of our study is to identify differences between men and women in terms of pre- and post-DBS symptoms and try to explain the possible causes. In the current study, we evaluated the gender impact on STN-DBS in PD at the Department of Neurosurgery of University of Naples "Federico II" from 2013 to 2021. Motor and non-motor symptoms were evaluated. To compare the data before and after surgery and between the genders, Wilcoxon-Mann-Whitney tests were performed. A total of 43 patients with PD were included; of them, 17 (39%) were female. Baseline evaluation revealed no gender differences in the age of onset (p = 0.87). Not significant differences were noted in the Unified Parkinson's Disease Rating Scale (UPDRS) pre-surgery score, but if we consider UPDRS subscores of motor examination, significant clinical improvement was reported in both male and female in terms of UPDRS pre- and post-surgery (p < 0.001). STN-DBS is a highly effective treatment for motor and non-motor symptoms of PD for both women and men but our study hints towards gender-specific outcomes in motor domains. Improving our knowledge in this field can allow us to implement strategies to identify new directions in the development of an adequate treatment of PD in terms of surgical intervention and in consideration of the gender.
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Affiliation(s)
- Teresa Somma
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Ilaria Bove
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy.
| | - Francesca Vitulli
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Domenico Solari
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Andrea Bocchino
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Carmela Palmiero
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Maria Rosaria Scala
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Cesare Zoia
- UOC Neurochirurgia, Ospedale Moriggia Pelascini, Gravedona Ed Uniti, Italy
| | - Paolo Cappabianca
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
| | - Felice Esposito
- Department of Neurological Sciences, Division of Neurosurgery, Università Degli Studi Di Napoli Federico II, Naples, Italy
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Chen C, Khanthiyong B, Thaweetee-Sukjai B, Charoenlappanit S, Roytrakul S, Thanoi S, Reynolds GP, Nudmamud-Thanoi S. Proteomic association with age-dependent sex differences in Wisconsin Card Sorting Test performance in healthy Thai subjects. Sci Rep 2023; 13:20238. [PMID: 37981639 PMCID: PMC10658079 DOI: 10.1038/s41598-023-46750-4] [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: 02/16/2023] [Accepted: 11/04/2023] [Indexed: 11/21/2023] Open
Abstract
Sex differences in cognitive function exist, but they are not stable and undergo dynamic change during the lifespan. However, our understanding of how sex-related neural information transmission evolves with age is still in its infancy. This study utilized the Wisconsin Card Sorting Test (WCST) and the label-free proteomics method with bioinformatic analysis to investigate the molecular mechanisms underlying age-related sex differences in cognitive performance in 199 healthy Thai subjects (aged 20-70 years), as well as explore the sex-dependent protein complexes for predicting cognitive aging. The results showed that males outperformed females in two of the five WCST sub-scores: %Corrects and %Errors. Sex differences in these scores were related to aging, becoming noticeable in those over 60. At the molecular level, differently expressed individual proteins and protein complexes between both sexes are associated with the potential N-methyl-D-aspartate type glutamate receptor (NMDAR)-mediated excitotoxicity, with the NMDAR complex being enriched exclusively in elderly female samples. These findings provided a preliminary indication that healthy Thai females might be more susceptible to such neurotoxicity, as evidenced by their cognitive performance. NMDAR protein complex enrichment in serum could be proposed as a potential indication for predicting cognitive aging in healthy Thai females.
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Affiliation(s)
- Chen Chen
- Medical Science Graduate Program, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | | | | | - Sawanya Charoenlappanit
- National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Sittiruk Roytrakul
- National Centre for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Samur Thanoi
- School of Medical Sciences, University of Phayao, Phayao, Thailand.
| | - Gavin P Reynolds
- Biomolecular Sciences Research Centre, Sheffield Hallam University, Sheffield, UK
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Sutisa Nudmamud-Thanoi
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand.
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Chen B, Wang W, Yang S. The impact of family functioning on depression in college students: A moderated mediation model. J Affect Disord 2023; 340:448-455. [PMID: 37579887 DOI: 10.1016/j.jad.2023.08.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/18/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND The depression of college students is increasing. Family dysfunction is a potential risk factor for depression. More research is needed to uncover the relationship and influencing mechanism. Based on this, this study examined the mediating effect of coping style and the moderating effect of gender in family functioning and depression among college students. METHODS From May to June 2022, a cross-sectional survey was conducted among 2033 college students (16-24 years old) from universities in Anhui Province, China, including 1285 females (63.21 %) and 748 males (36.79 %), with an average age of 19.81 years old (SD = 1.22 years old). There were 651 (32.02 %) only child. Family functioning was assessed by Family Assessment Device, coping style was assessed by Simplified Coping Style Questionnaire and depression was assessed by Self-rating Depression Scale. Common method bias was performed by Harman's single-factor test. Mediating effect was analyzed by stepwise regression. Moderating effect was analyzed by moderated multiple regression. RESULTS There was no serious common method bias in this study. Good family functioning had a negative predictive effect on depression in college students (r = -0.56, p < 0.001). Coping style partially mediated the predictive effect of family functioning on depression, and the mediating effect accounted for 33.73 % of the total effect. The interaction term of family functioning and gender was significant predictor of coping style (β = 0.33, t = 2.69, p < 0.05) and depression (β = -1.98, t = -2.46, p < 0.05). CONCLUSIONS Good family functioning is a negative predictor of depression in college students. Coping style plays a partial mediating role between family functioning and depression. The first half path and the direct path of the mediation model are modulated by gender.
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Affiliation(s)
- Baoling Chen
- School of Management, Hefei University of Technology, Hefei, China; School of Finance and Public Administration, Anhui University of Finance & Economics, Bengbu, China.
| | - Weiwei Wang
- Internal Medicine Department, The Third People's Hospital of Bengbu, Bengbu, China
| | - Shanlin Yang
- School of Management, Hefei University of Technology, Hefei, China
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Munawar N, Bitar MS, Masocha W. Activation of 5-HT1A Receptors Normalizes the Overexpression of Presynaptic 5-HT1A Receptors and Alleviates Diabetic Neuropathic Pain. Int J Mol Sci 2023; 24:14334. [PMID: 37762636 PMCID: PMC10532078 DOI: 10.3390/ijms241814334] [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: 07/10/2023] [Revised: 08/11/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
Neuropathic pain is a well-documented phenomenon in experimental and clinical diabetes; however, current treatment is unsatisfactory. Serotoninergic-containing neurons are key components of the descending autoinhibitory pathway, and a decrease in their activity may contribute at least in part to diabetic neuropathic pain (DNP). A streptozotocin (STZ)-treated rat was used as a model for type 1 diabetes mellitus (T1DM). Pain transmission was evaluated using well-established nociceptive-based techniques, including the Hargreaves apparatus, cold plate and dynamic plantar aesthesiometer. Using qRT-PCR, Western blotting, immunohistochemistry, and HPLC-based techniques, we also measured in the central nervous system and peripheral nervous system of diabetic animals the expression and localization of 5-HT1A receptors (5-HT1AR), levels of key enzymes involved in the synthesis and degradation of tryptophan and 5-HT, including tryptophan hydroxylase-2 (Tph-2), tryptophan 2,3-dioxygenase (Tdo), indoleamine 2,3-dioxygenase 1 (Ido1) and Ido2. Moreover, spinal concentrations of 5-HT, 5-hydroxyindoleacetic acid (5-HIAA, a metabolite of 5-HT) and quinolinic acid (QA, a metabolite of tryptophan) were also quantified. Diabetic rats developed thermal hyperalgesia and cold/mechanical allodynia, and these behavioral abnormalities appear to be associated with the upregulation in the levels of expression of critical molecules related to the serotoninergic nervous system, including presynaptic 5-HT1AR and the enzymes Tph-2, Tdo, Ido1 and Ido2. Interestingly, the level of postsynaptic 5-HT1AR remains unaltered in STZ-induced T1DM. Chronic treatment of diabetic animals with 8-hydroxy-2-(dipropylamino)tetralin (8-OH-DPAT), a selective 5-HT1AR agonist, downregulated the upregulation of neuronal presynaptic 5-HT1AR, increased spinal release of 5-HT (↑ 5-HIAA/5-HT) and reduced the concentration of QA, decreased mRNA expression of Tdo, Ido1 and Ido2, arrested neuronal degeneration and ameliorated pain-related behavior as exemplified by thermal hyperalgesia and cold/mechanical allodynia. These data show that 8-OH-DPAT alleviates DNP and other components of the serotoninergic system, including the ratio of 5-HIAA/5-HT and 5-HT1AR, and could be a useful therapeutic agent for managing DNP.
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Affiliation(s)
- Neha Munawar
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Al-Jabriya 046302, Kuwait;
| | - Milad S. Bitar
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Al-Jabriya 046302, Kuwait;
| | - Willias Masocha
- Department of Pharmacology and Therapeutics, College of Pharmacy, Kuwait University, Al-Jabriya 046302, Kuwait;
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8
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Leal TP, Rao SC, French-Kwawu JN, Gouveia MH, Borda V, Bandres-Ciga S, Inca-Martinez M, Mason EA, Horimoto AR, Loesch DP, Sarihan EI, Cornejo-Olivas MR, Torres LE, Mazzetti-Soler PE, Cosentino C, Sarapura-Castro EH, Rivera-Valdivia A, Medina AC, Dieguez EM, Raggio VE, Lescano A, Tumas V, Borges V, Ferraz HB, Rieder CR, Schuh AS, Santos-Lobato BL, Velez-Pardo C, Jimenez-Del-Rio M, Lopera F, Moreno S, Chana-Cuevas P, Fernandez W, Arboleda G, Arboleda H, Bustos CEA, Yearout D, Lima-Costa MF, Tarazona-Santos E, Zabetian CP, Thornton TA, O’Connor TD, Mata IF. X-Chromosome Association Study in Latin American Cohorts Identifies New Loci in Parkinson's Disease. Mov Disord 2023; 38:1625-1635. [PMID: 37469269 PMCID: PMC10524402 DOI: 10.1002/mds.29508] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Sex differences in Parkinson's disease (PD) risk are well-known. However, the role of sex chromosomes in the development and progression of PD is still unclear. OBJECTIVE The objective of this study was to perform the first X-chromosome-wide association study for PD risk in a Latin American cohort. METHODS We used data from three admixed cohorts: (1) Latin American Research consortium on the Genetics of Parkinson's Disease (n = 1504) as discover cohort, and (2) Latino cohort from International Parkinson Disease Genomics Consortium (n = 155) and (3) Bambui Aging cohort (n = 1442) as replication cohorts. We also developed an X-chromosome framework specifically designed for admixed populations. RESULTS We identified eight linkage disequilibrium regions associated with PD. We replicated one of these regions (top variant rs525496; discovery odds ratio [95% confidence interval]: 0.60 [0.478-0.77], P = 3.13 × 10-5 replication odds ratio: 0.60 [0.37-0.98], P = 0.04). rs5525496 is associated with multiple expression quantitative trait loci in brain and non-brain tissues, including RAB9B, H2BFM, TSMB15B, and GLRA4, but colocalization analysis suggests that rs5525496 may not mediate risk by expression of these genes. We also replicated a previous X-chromosome-wide association study finding (rs28602900), showing that this variant is associated with PD in non-European populations. CONCLUSIONS Our results reinforce the importance of including X-chromosome and diverse populations in genetic studies. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Thiago P. Leal
- Lerner Research Institute, Genomic Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | | | - Jennifer N. French-Kwawu
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Mateus H. Gouveia
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Victor Borda
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Sara Bandres-Ciga
- Center for Alzheimer’s and Related Dementias, National Institutes of Health, Bethesda, Maryland, USA
| | - Miguel Inca-Martinez
- Lerner Research Institute, Genomic Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Emily A. Mason
- University of South Carolina School of Medicine, Columbia, South Carolina, USA
| | | | - Douglas P. Loesch
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Elif I. Sarihan
- Lerner Research Institute, Genomic Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - Mario R. Cornejo-Olivas
- Neurogenetics Working Group, Universidad Científica del Sur, Lima, Peru
- Neurogenetics Research Center, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
| | - Luis E. Torres
- Movement Disorders Unit, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
| | - Pilar E. Mazzetti-Soler
- Neurogenetics Research Center, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
- Departamento de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Carlos Cosentino
- Movement Disorders Unit, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
| | | | | | | | - Elena M. Dieguez
- Neurology Institute, Universidad de la República, Montevideo, Uruguay
| | - Víctor E. Raggio
- Department of Genetics, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Andrés Lescano
- Neurology Institute, Universidad de la República, Montevideo, Uruguay
| | - Vitor Tumas
- Ribeirão Preto Medical School, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Vanderci Borges
- Movement Disorders Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Henrique B. Ferraz
- Movement Disorders Unit, Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Carlos R. Rieder
- Departamento de Neurologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Artur Schumacher Schuh
- Serviço de Neurologia, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
- Departamento de Farmacologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Carlos Velez-Pardo
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - Marlene Jimenez-Del-Rio
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - Francisco Lopera
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - Sonia Moreno
- Neuroscience Research Group, Medical Research Institute, Faculty of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - Pedro Chana-Cuevas
- CETRAM, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| | - William Fernandez
- Neuroscience and Cell Death Research Groups, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Gonzalo Arboleda
- Neuroscience and Cell Death Research Groups, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Humberto Arboleda
- Neuroscience and Cell Death Research Groups, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Carlos E. Arboleda Bustos
- Neuroscience and Cell Death Research Groups, Medical School and Genetic Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Dora Yearout
- Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Neurology, University of Washington, Seattle, Washington, USA
| | | | - Eduardo Tarazona-Santos
- Department of Genetics, Ecology and Evolution, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cyrus P. Zabetian
- Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Neurology, University of Washington, Seattle, Washington, USA
| | | | - Timothy A. Thornton
- Department of Biostatistics, University of Washington, Seattle, Washington, USA
| | - Timothy D. O’Connor
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Program in Health Equity and Population Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Program in Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Ignacio F. Mata
- Lerner Research Institute, Genomic Medicine, Cleveland Clinic, Cleveland, Ohio, USA
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9
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Scheffels JF, Ballasch I, Scheichel N, Voracek M, Kalbe E, Kessler J. The Influence of Age, Gender and Education on Neuropsychological Test Scores: Updated Clinical Norms for Five Widely Used Cognitive Assessments. J Clin Med 2023; 12:5170. [PMID: 37629212 PMCID: PMC10455991 DOI: 10.3390/jcm12165170] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Sociodemographic effects (i.e., age, gender, education) have been shown to influence neuropsychological test scores. The current retrospective, quasi-epidemiological work provides age-, gender- and education-corrected clinical norms for five common cognitive assessments. METHODS In total, test scores of 4968 patients from the University Hospital of Cologne (Department of Neurology), recruited between 2009 and 2020, were analyzed retrospectively. Conducted tests were the Mini-Mental State Examination (MMSE), F-A-S Test (FAS), Rey-Osterrieth Complex Figure Test (ROCFT) and Trail Making Test, Part A and B (TMT-A/-B). Using multiple linear regression analyses, test scores were analyzed for sociodemographic influences (age, gender, education). Based on these analyses, norms were generated by first separating patients into different age groups stratified by educational level and (if necessary) gender. Subsequently, percentile ranks and z-scores for a subsample including only individuals without dementia were calculated. RESULTS Lower age and higher educational level predicted better test scores (MMSE, FAS, ROCFT) and completion times (TMT-A/-B). Additionally, produced words on the FAS and remembered drawings from the ROCFT were influenced by gender, with females having better FAS but lower ROCFT (delayed recall) scores than males. Considering these effects, clinical norms were provided for the five cognitive assessments. CONCLUSIONS We found influences of age, gender and education on test scores, although they are frequently not or only partially considered for test score interpretation. With the provided norms, neuropsychologists can make more profound evaluations of cognitive performance. A user-friendly Microsoft Excel file is offered to assist this process.
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Affiliation(s)
| | - Isabell Ballasch
- Department of Medical Psychology, Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Nadine Scheichel
- Department of Medical Psychology, Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, 1010 Vienna, Austria
| | - Martin Voracek
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, 1010 Vienna, Austria
| | - Elke Kalbe
- Department of Medical Psychology, Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
| | - Josef Kessler
- Department of Medical Psychology, Neuropsychology & Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
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10
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Leal TP, French-Kwawu JN, Gouveia MH, Borda V, Inca-Martinez M, Mason EA, Horimoto ARVR, Loesch DP, Sarihan EI, Cornejo-Olivas MR, Torres LE, Mazzetti-Soler PE, Cosentino C, Sarapura-Castro EH, Rivera-Valdivia A, Medina AC, Dieguez EM, Raggio VE, Lescano A, Tumas V, Borges V, Ferraz HB, Rieder CR, Schumacher-Schuh A, Santos-Lobato BL, Velez-Pardo C, Jimenez-Del-Rio M, Lopera F, Moreno S, Chana-Cuevas P, Fernandez W, Arboleda G, Arboleda H, Arboleda Bustos CE, Yearout D, Lima-Costa MF, Tarazona E, Zabetian C, Thornton TA, O’Connor TD, Mata IF. X-Chromosome Association Study in Latin American Cohorts Identifies New Loci in Parkinson Disease. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.01.31.23285199. [PMID: 36778409 PMCID: PMC9915833 DOI: 10.1101/2023.01.31.23285199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Sex differences in Parkinson Disease (PD) risk are well-known. However, it is still unclear the role of sex chromosomes in the development and progression of PD. We performed the first X-chromosome Wide Association Study (XWAS) for PD risk in Latin American individuals. We used data from three admixed cohorts: (i) Latin American Research consortium on the GEnetics of Parkinson's Disease (n=1,504) as discover cohort and (ii) Latino cohort from International Parkinson Disease Genomics Consortium (n = 155) and (iii) Bambui Aging cohort (n= 1,442) as replication cohorts. After developing a X-chromosome framework specifically designed for admixed populations, we identified eight linkage disequilibrium regions associated with PD. We fully replicated one of these regions (top variant rs525496; discovery OR [95%CI]: 0.60 [0.478 - 0.77], p = 3.13 × 10 -5 ; replication OR: 0.60 [0.37-0.98], p = 0.04). rs525496 is an expression quantitative trait loci for several genes expressed in brain tissues, including RAB9B, H2BFM, TSMB15B and GLRA4 . We also replicated a previous XWAS finding (rs28602900), showing that this variant is associated with PD in non-European populations. Our results reinforce the importance of including X-chromosome and diverse populations in genetic studies.
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11
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Lista S, Vergallo A, Teipel SJ, Lemercier P, Giorgi FS, Gabelle A, Garaci F, Mercuri NB, Babiloni C, Gaire BP, Koronyo Y, Koronyo-Hamaoui M, Hampel H, Nisticò R. Determinants of approved acetylcholinesterase inhibitor response outcomes in Alzheimer's disease: relevance for precision medicine in neurodegenerative diseases. Ageing Res Rev 2023; 84:101819. [PMID: 36526257 DOI: 10.1016/j.arr.2022.101819] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/11/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Acetylcholinesterase inhibitors (ChEI) are the global standard of care for the symptomatic treatment of Alzheimer's disease (AD) and show significant positive effects in neurodegenerative diseases with cognitive and behavioral symptoms. Although experimental and large-scale clinical evidence indicates the potential long-term efficacy of ChEI, primary outcomes are generally heterogeneous across outpatient clinics and regional healthcare systems. Sub-optimal dosing or slow tapering, heterogeneous guidelines about the timing for therapy initiation (prodromal versus dementia stages), healthcare providers' ambivalence to treatment, lack of disease awareness, delayed medical consultation, prescription of ChEI in non-AD cognitive disorders, contribute to the negative outcomes. We present an evidence-based overview of determinants, spanning genetic, molecular, and large-scale networks, involved in the response to ChEI in patients with AD and other neurodegenerative diseases. A comprehensive understanding of cerebral and retinal cholinergic system dysfunctions along with ChEI response predictors in AD is crucial since disease-modifying therapies will frequently be prescribed in combination with ChEI. Therapeutic algorithms tailored to genetic, biological, clinical (endo)phenotypes, and disease stages will help leverage inter-drug synergy and attain optimal combined response outcomes, in line with the precision medicine model.
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Affiliation(s)
- Simone Lista
- Memory Resources and Research Center (CMRR), Neurology Department, Gui de Chauliac University Hospital, Montpellier, France; School of Pharmacy, University of Rome "Tor Vergata", Rome, Italy.
| | - Andrea Vergallo
- Sorbonne University, Alzheimer Precision Medicine (APM), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Stefan J Teipel
- German Center for Neurodegenerative Diseases (DZNE) Rostock/Greifswald, Rostock, Germany; Department of Psychosomatic Medicine and Psychotherapy, University Medicine Rostock, Rostock, Germany
| | - Pablo Lemercier
- Sorbonne University, Alzheimer Precision Medicine (APM), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Filippo Sean Giorgi
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, Pisa, Italy
| | - Audrey Gabelle
- Memory Resources and Research Center (CMRR), Neurology Department, Gui de Chauliac University Hospital, Montpellier, France
| | - Francesco Garaci
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Rome, Italy; Casa di Cura "San Raffaele Cassino", Cassino, Italy
| | - Nicola B Mercuri
- Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy; IRCCS Santa Lucia Foundation, Rome, Italy
| | - Claudio Babiloni
- Department of Physiology and Pharmacology "Erspamer", Sapienza University of Rome, Rome, Italy; Hospital San Raffaele Cassino, Cassino, Italy
| | - Bhakta Prasad Gaire
- Department of Neurosurgery, Maxine Dunitz Neurosurgical Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Yosef Koronyo
- Department of Neurosurgery, Maxine Dunitz Neurosurgical Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Maya Koronyo-Hamaoui
- Department of Neurosurgery, Maxine Dunitz Neurosurgical Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Biomedical Sciences, Division of Applied Cell Biology and Physiology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Harald Hampel
- Sorbonne University, Alzheimer Precision Medicine (APM), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Robert Nisticò
- School of Pharmacy, University of Rome "Tor Vergata", Rome, Italy; Laboratory of Pharmacology of Synaptic Plasticity, EBRI Rita Levi-Montalcini Foundation, Rome, Italy.
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12
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Familiarity and identification of everyday food odors in older adults and their influence on hedonic liking. Food Qual Prefer 2023. [DOI: 10.1016/j.foodqual.2022.104715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Bhagwasia M, Rao AR, Banerjee J, Bajpai S, Raman AV, Talukdar A, Jain A, Rajguru C, Sankhe L, Goswami D, Shanthi GS, Kumar G, Varghese M, Dhar M, Gupta M, A-Koul P, Mohanty RR, Chakrabarti SS, Yadati SR, Dey S, Dey AB. Association Between Cognitive Performance and Nutritional Status: Analysis From LASI-DAD. Gerontol Geriatr Med 2023; 9:23337214231194965. [PMID: 37743872 PMCID: PMC10515514 DOI: 10.1177/23337214231194965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/05/2023] [Accepted: 07/27/2023] [Indexed: 09/26/2023] Open
Abstract
Malnutrition in low- and middle-income countries causes cognitive decline and other health problems. Harmonized Diagnostic Assessment of Dementia for Longitudinal Aging Study in India (LASI DAD) is an extensive study on late-life cognition and dementia. This study examines the link between nutrition and cognitive abilities in older adults using data from the LASI DAD. We conducted descriptive statistics on nutritional parameters (body-mass index, waist-hip ratio, and Mini-Nutritional Assessment), cognitive functions, and socio-demographic variables in 2,892 adults aged ≥60 years. Cognitive domains assessed included delayed recall, orientation, language, executive function, abstract reasoning, and attention. Cognitive impairment was defined as impaired performance in two or more domains. Mean age was 69.3 ± 7.1 years, 52.9% were female, and 57.5% were illiterate. Low body-mass index (adjusted OR: 1.88, p < .001), at risk of malnutrition (adjusted OR: 1.89, p < .001) and malnourished (adjusted OR: 2.86, p < .001) on Mini-Nutritional Assessment were associated with the presence of cognitive impairment. Better cognitive performance was associated with increased body mass index (adjusted OR: 0.74, p-.03), hemoglobin (adjusted OR: 0.91, p-.006), and serum albumin (adjusted OR: 0.38, p < .001). This study shows that nutritional status assessed by anthropometric measures and blood markers is strongly linked to cognitive performance in older adults.
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Affiliation(s)
| | | | | | - Swati Bajpai
- All India Institute of Medical Sciences, New Delhi, India
| | | | | | - Arvind Jain
- Dr S. N. Medical College, Jodhpur, Rajasthan, India
| | - Chhaya Rajguru
- Grant Medical College and J.J. Hospital, Mumbai, Maharashtra, India
| | - Lalit Sankhe
- Grant Medical College and J.J. Hospital, Mumbai, Maharashtra, India
| | | | | | - Govind Kumar
- Indira Gandhi Institute of Medical Science, Patna, Bihar, India
| | - Mathew Varghese
- National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Minakshi Dhar
- All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Monica Gupta
- Government Medical College and Hospital, Chandigarh, Punjab, India
| | - Parvaiz A-Koul
- Sher-e-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India
| | | | | | | | - Sharmistha Dey
- All India Institute of Medical Sciences, New Delhi, India
| | - Aparajit Ballav Dey
- All India Institute of Medical Sciences, New Delhi, India
- Venu Geriatric Institute, New Delhi, India
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14
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OLGUN KAVAL N, ARKAR H. Sosyal Biliş Becerilerinin Sosyal Kaygı Üzerindeki Yordayıcı Etkisi. PSIKIYATRIDE GUNCEL YAKLASIMLAR - CURRENT APPROACHES IN PSYCHIATRY 2022. [DOI: 10.18863/pgy.1167103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Bu çalışmanın temel amacı sosyal kaygı ile sosyal biliş becerileri (duygu tanıma/ayırt etme, zihin kuramı, atıf yanlılığı, sosyal işlevsellik) arasındaki ilişkiyi incelemek ve sosyal biliş becerilerinin sosyal kaygıyı yordama gücünü araştırmaktır. Çalışmada ayrıca sosyal kaygı, sosyal biliş becerileri ve depresyon puanlarının cinsiyet, yaş, bildirilen tanı durumu ve sosyal kaygı düzeyine göre farklılaşıp farklılaşmadığı araştırılmıştır. Çalışmanın örneklemini, 18-60 yaşları arasında bulunan toplam 385 kişi oluşturmuştur. Araştırma verileri çevrimiçi olarak Liebowitz Sosyal Anksiyete Ölçeği, Yüzde Dışavuran Duyguların Tanınması ve Ayırt Edilmesi Testi, Gözlerden Zihin Okuma Testi, İçsel, Kişisel ve Durumsal Atıflar Ölçeği, Sosyal İşlevsellik Ölçeği, Beck Depresyon Envanteri ve Sosyodemografik Bilgi Formu kullanılarak katılımcılardan toplanmıştır. Sosyal kaygı ile duygu tanıma, duygu ayırt etme ve gözlerden zihin okuma arasında negatif, dışsallaştırma yanlılığı ve depresyon ile ise pozitif yönde anlamlı ilişki olduğu belirlenmiştir. Depresyon, duygu tanıma ve ayırt etme, gözlerden zihin okuma ve öncül sosyal etkinlikler ölçek puanlarının sosyal kaygıyı anlamlı düzeyde yordadığı bulunmuştur. Bu değişkenler sosyal kaygıya ilişkin toplam varyansın %52’sini açıklamaktadır. Ayrıca, depresyon etkisi kontrol edildiğinde sosyal biliş becerilerinin sosyal kaygıya ilişkin varyansın %32’sini açıkladığı görülmüştür. Sosyal biliş becerilerindeki bozulmanın ve depresyon puanlarının sosyal kaygının artışıyla ilişkili olduğu belirlenmiştir. Araştırmadan elde edilen sonuçlara göre, sosyal kaygıyı önlemeye yönelik önerilerde bulunulmuştur. Müdahale programları içerisinde bireylerin kişilerarası iletişimi için önemli olan sosyal biliş becerilerini geliştirmeye yönelik etkinliklere yer verilmesinin yararlı olacağı önerilmektedir.
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Affiliation(s)
| | - Haluk ARKAR
- Ege Üniversitesi, Edebiyat Fakültesi, Psikoloji Bölümü
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15
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Metzner K, Darawsha O, Wang M, Gaur N, Cheng Y, Rödiger A, Frahm C, Witte OW, Perocchi F, Axer H, Grosskreutz J, Brill MS. Age-dependent increase of cytoskeletal components in sensory axons in human skin. Front Cell Dev Biol 2022; 10:965382. [PMID: 36393849 PMCID: PMC9664158 DOI: 10.3389/fcell.2022.965382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/12/2022] [Indexed: 01/24/2023] Open
Abstract
Aging is a complex process characterized by several molecular and cellular imbalances. The composition and stability of the neuronal cytoskeleton is essential for the maintenance of homeostasis, especially in long neurites. Using human skin biopsies containing sensory axons from a cohort of healthy individuals, we investigate alterations in cytoskeletal content and sensory axon caliber during aging via quantitative immunostainings. Cytoskeletal components show an increase with aging in both sexes, while elevation in axon diameter is only evident in males. Transcriptomic data from aging males illustrate various patterns in gene expression during aging. Together, the data suggest gender-specific changes during aging in peripheral sensory axons, possibly influencing cytoskeletal functionality and axonal caliber. These changes may cumulatively increase susceptibility of aged individuals to neurodegenerative diseases.
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Affiliation(s)
- Klara Metzner
- Department of Neurology, Jena University Hospital, Jena, Germany,Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Omar Darawsha
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Mengzhe Wang
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Nayana Gaur
- Department of Neurology, Jena University Hospital, Jena, Germany,Laboratory Animal Centre, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Yiming Cheng
- Helmholtz Diabetes Center (HDC), Helmholtz Center Munich, Institute for Diabetes and Obesity, Munich, Germany
| | | | - Christiane Frahm
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Otto W. Witte
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Fabiana Perocchi
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany,Helmholtz Diabetes Center (HDC), Helmholtz Center Munich, Institute for Diabetes and Obesity, Munich, Germany,Munich Cluster of Systems Neurology (SyNergy), Munich, Germany
| | - Hubertus Axer
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Julian Grosskreutz
- Precision Neurology of the University of Lübeck, Lübeck, Germany,PMI Cluster, University of Lübeck, Lübeck, Germany
| | - Monika S. Brill
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany,Munich Cluster of Systems Neurology (SyNergy), Munich, Germany,*Correspondence: Monika S. Brill,
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16
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Ocañas SR, Ansere VA, Tooley KB, Hadad N, Chucair-Elliott AJ, Stanford DR, Rice S, Wronowski B, Pham KD, Hoffman JM, Austad SN, Stout MB, Freeman WM. Differential Regulation of Mouse Hippocampal Gene Expression Sex Differences by Chromosomal Content and Gonadal Sex. Mol Neurobiol 2022; 59:4669-4702. [PMID: 35589920 PMCID: PMC9119800 DOI: 10.1007/s12035-022-02860-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 04/25/2022] [Indexed: 01/23/2023]
Abstract
Common neurological disorders, like Alzheimer's disease (AD), multiple sclerosis (MS), and autism, display profound sex differences in prevalence and clinical presentation. However, sex differences in the brain with health and disease are often overlooked in experimental models. Sex effects originate, directly or indirectly, from hormonal or sex chromosomal mechanisms. To delineate the contributions of genetic sex (XX v. XY) versus gonadal sex (ovaries v. testes) to the epigenomic regulation of hippocampal sex differences, we used the Four Core Genotypes (FCG) mouse model which uncouples chromosomal and gonadal sex. Transcriptomic and epigenomic analyses of ~ 12-month-old FCG mouse hippocampus, revealed genomic context-specific regulatory effects of genotypic and gonadal sex on X- and autosome-encoded gene expression and DNA modification patterns. X-chromosomal epigenomic patterns, classically associated with X-inactivation, were established almost entirely by genotypic sex, independent of gonadal sex. Differences in X-chromosome methylation were primarily localized to gene regulatory regions including promoters, CpG islands, CTCF binding sites, and active/poised chromatin, with an inverse relationship between methylation and gene expression. Autosomal gene expression demonstrated regulation by both genotypic and gonadal sex, particularly in immune processes. These data demonstrate an important regulatory role of sex chromosomes, independent of gonadal sex, on sex-biased hippocampal transcriptomic and epigenomic profiles. Future studies will need to further interrogate specific CNS cell types, identify the mechanisms by which sex chromosomes regulate autosomes, and differentiate organizational from activational hormonal effects.
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Affiliation(s)
- Sarah R Ocañas
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Victor A Ansere
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Kyla B Tooley
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | - Ana J Chucair-Elliott
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
| | - David R Stanford
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
| | - Shannon Rice
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
| | - Benjamin Wronowski
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Kevin D Pham
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA
| | - Jessica M Hoffman
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Steven N Austad
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael B Stout
- Aging & Metabolism Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Willard M Freeman
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13thStreet, Oklahoma City, OK, 73104, USA.
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK, USA.
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17
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Corriveau-Lecavalier N, Décarie-Labbé L, Mellah S, Belleville S, Rajah MN. Sex differences in patterns of associative memory-related activation in individuals at risk of Alzheimer's disease. Neurobiol Aging 2022; 119:89-101. [PMID: 35985098 DOI: 10.1016/j.neurobiolaging.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 11/15/2022]
Abstract
The risk of developing Alzheimer's disease dementia is higher in females compared to males and is greater in individuals with subjective cognitive decline and mild cognitive impairment than in healthy controls. We used a multivariate behavioral partial least square correlation analysis to examine how relationships between memory-related activation and associative memory performance vary as a function of sex and clinical status. This was assessed in 182 participants from the Consortium for the Early Identification of Alzheimer's Disease-Quebec cohort, which were stratified according to sex (Male, Female) and clinical status (healthy controls, subjective cognitive decline, mild cognitive impairment). We found 6 significant latent variables mainly expressing: (1) overall sex differences; (2) between-sex differences according to clinical status; and (3) within-sex differences according to clinical status in relationships between whole-brain memory-related activation and memory performance. These patterns of activation mostly involved the default mode and fronto-parietal networks. Our results have implication in understanding the macro-scale functional processes possibly contributing to the higher risk of cognitive decline in females compared to males in the context of aging and early Alzheimer's disease.
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Affiliation(s)
| | - Laurie Décarie-Labbé
- Research Centre, Institut universitaire de geriatrie de Montreal, Montreal, Quebec, Canada; Department of Psychology, Universite de Montreal, Montreal, Quebec, Canada
| | - Samira Mellah
- Research Centre, Institut universitaire de geriatrie de Montreal, Montreal, Quebec, Canada
| | - Sylvie Belleville
- Research Centre, Institut universitaire de geriatrie de Montreal, Montreal, Quebec, Canada; Department of Psychology, Universite de Montreal, Montreal, Quebec, Canada
| | - Maria Natasha Rajah
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada; Douglas Research Centre, Montreal, Quebec, Canada.
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18
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Subramaniapillai S, Rajagopal S, Ankudowich E, Pasvanis S, Misic B, Rajah MN. Age- and Episodic Memory-related Differences in Task-based Functional Connectivity in Women and Men. J Cogn Neurosci 2022; 34:1500-1520. [PMID: 35579987 DOI: 10.1162/jocn_a_01868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Aging is associated with episodic memory decline and changes in functional brain connectivity. Understanding whether and how biological sex influences age- and memory performance-related functional connectivity has important theoretical implications for the cognitive neuroscience of memory and aging. Here, we scanned 161 healthy adults between 19 and 76 years of age in an event-related fMRI study of face-location spatial context memory. Adults were scanned while performing easy and difficult versions of the task at both encoding and retrieval. We used multivariate whole-brain partial least squares connectivity to test the hypothesis that there are sex differences in age- and episodic memory performance-related functional connectivity. We examined how individual differences in age and retrieval accuracy correlated with task-related connectivity. We then repeated this analysis after disaggregating the data by self-reported sex. We found that increased encoding and retrieval-related connectivity within the dorsal attention network (DAN), and between DAN and frontoparietal network and visual networks, were positively correlated to retrieval accuracy and negatively correlated with age in both sexes. We also observed sex differences in age- and performance-related functional connectivity: (a) Greater between-networks integration was apparent at both levels of task difficulty in women only, and (b) increased DAN-default mode network connectivity with age was observed in men and was correlated with poorer memory performance. Therefore, the neural correlates of age-related episodic memory decline differ in women and men and have important theoretical and clinical implications for the cognitive neuroscience of memory, aging, and dementia prevention.
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Affiliation(s)
- Sivaniya Subramaniapillai
- McGill University, Montréal, Quebéc, Canada.,Douglas Mental Health University Institute, Montréal, Quebéc, Canada
| | | | - Elizabeth Ankudowich
- McGill University, Montréal, Quebéc, Canada.,Douglas Mental Health University Institute, Montréal, Quebéc, Canada
| | | | - Bratislav Misic
- Douglas Mental Health University Institute, Montréal, Quebéc, Canada
| | - M Natasha Rajah
- McGill University, Montréal, Quebéc, Canada.,Douglas Mental Health University Institute, Montréal, Quebéc, Canada
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19
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Abstract
Sex and gender differences are seen in cognitive disturbances in a variety of neurological and psychiatry diseases. Men are more likely to have cognitive symptoms in schizophrenia whereas women are more likely to have more severe cognitive symptoms with major depressive disorder and Alzheimer's disease. Thus, it is important to understand sex and gender differences in underlying cognitive abilities with and without disease. Sex differences are noted in performance across various cognitive domains - with males typically outperforming females in spatial tasks and females typically outperforming males in verbal tasks. Furthermore, there are striking sex differences in brain networks that are activated during cognitive tasks and in learning strategies. Although rarely studied, there are also sex differences in the trajectory of cognitive aging. It is important to pay attention to these sex differences as they inform researchers of potential differences in resilience to age-related cognitive decline and underlying mechanisms for both healthy and pathological cognitive aging, depending on sex. We review literature on the progressive neurodegenerative disorder, Alzheimer's disease, as an example of pathological cognitive aging in which human females show greater lifetime risk, neuropathology, and cognitive impairment, compared to human males. Not surprisingly, the relationships between sex and cognition, cognitive aging, and Alzheimer's disease are nuanced and multifaceted. As such, this chapter will end with a discussion of lifestyle factors, like education and diet, as modifiable factors that can alter cognitive aging by sex. Understanding how cognition changes across age and contributing factors, like sex differences, will be essential to improving care for older adults.
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20
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Kolland M, Hofer E, Pirpamer L, Eibl D, Enzinger C, Rosenkranz AR, Schmidt R. Kidney function, brain morphology and cognition in the elderly: sex differences in the Austrian Stroke Prevention Study. Aging (Albany NY) 2022; 14:240-252. [PMID: 35025758 PMCID: PMC8791200 DOI: 10.18632/aging.203829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 12/29/2021] [Indexed: 11/25/2022]
Abstract
Impaired kidney function is associated with structural brain changes and cognitive dysfunction. In the aging kidney, hemodynamic and structural alterations reduce the glomerular filtration rate (eGFR). Little is known about differences between men and women regarding decline of kidney function and brain damage. In this community-based study, we assessed associations between the eGFR, focal and diffuse brain abnormalities and cognitive functions. Sex-specific effects were analyzed by interaction terms eGFR x sex on brain structure and cognition. Interactive effects were assessed using mixed-models –stratified by sex. Overall, 196 women and 129 men (median age 68 years and mean eGFR 73.8±14.9 ml/min/1.73m2) were included. Significant associations existed between eGFR and cortical volume (β: 1.53E-04; SE: 6.72E-05; p=0.023 for neocortex). Sex exerted a significant interactive effect. Only in men, eGFR related to cortical volumes of all lobes and of deep gray matter structures (p= 0.001 for total gray matter, p=0.0004 for neocortex). In the whole group eGFR was not associated with cognition, but men with lower eGFR performed worse on tests for executive function, which, after FDR correction, was not significant. We conclude, that in community-dwelling middle-aged and elderly individuals, reduced eGFR relates to brain volume loss in men but not in women.
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Affiliation(s)
- Michael Kolland
- Department of Internal Medicine, Division of Nephrology, Medical University of Graz, Graz 8036, Styria, Austria
| | - Edith Hofer
- Department of Neurology, Division of Neurogeriatrics, Medical University of Graz, Graz 8036, Styria, Austria.,Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz 8036, Styria, Austria
| | - Lukas Pirpamer
- Department of Neurology, Division of Neurogeriatrics, Medical University of Graz, Graz 8036, Styria, Austria
| | - Daniela Eibl
- Department of Neurology, Division of Neurogeriatrics, Medical University of Graz, Graz 8036, Styria, Austria
| | - Christian Enzinger
- Department of Neurology, Division of General Neurology, Medical University Graz, Graz 8036, Styria, Austria.,Division of Neuroradiology, Interventional and Vascular Radiology, Department of Radiology, Medical University of Graz, Graz 8036, Styria, Austria
| | - Alexander R Rosenkranz
- Department of Internal Medicine, Division of Nephrology, Medical University of Graz, Graz 8036, Styria, Austria
| | - Reinhold Schmidt
- Department of Neurology, Division of Neurogeriatrics, Medical University of Graz, Graz 8036, Styria, Austria
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21
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Doncel-García B, Mosquera-Lajas Á, Fernández-Gutiérrez N, Fernández-Atutxa A, Lizaso I, Irazusta J. Relationship between negative stereotypes toward aging and multidimensional variables in older people living in two different social environments. Arch Gerontol Geriatr 2021; 98:104567. [PMID: 34781189 DOI: 10.1016/j.archger.2021.104567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/27/2021] [Accepted: 10/31/2021] [Indexed: 01/20/2023]
Abstract
BACKGROUND Ageism is studied extensively in community-dwelling older adults, but remains poorly understood in institutionalized older adults. Here, we compared the physical, psychological, and social variables associated with self-reported age-based biases in community-dwelling older adults and in those living in nursing homes (NHs). MATERIAL AND METHODS Participants (n = 272) in this descriptive cross-sectional study lived in NHs (n = 126) or in their homes (n = 146), were 60 years or older, and had no cognitive or serious functional impairments. Those in NHs had been institutionalized for at least six months. The dependent variable was negative stereotypes toward aging (CENVE). We developed generalized linear models (GLMs) by place of residence and sex following the Comprehensive Geriatric Assessment´s (CGA) methodology. RESULTS There is a statistically significant relationship between negative stereotypes of aging and different multidimensional variables. These variables differ between institutionalized and non-institutionalized adults and between men and women. While some variables are non-modifiable (age and sex) others are potentially modifiable (educational level, participation in activities, length of NH stay, hand strength, autonomy, and depression). CONCLUSIONS This study compared, for the first time, levels of ageism in older people living in two different social environments. Because most of the significant variables are modifiable in both environments, our results provide a framework to combat this type of discrimination. Promising strategies include anti-ageism policies and laws, educational interventions, and increased intergenerational contact.
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Affiliation(s)
- Borja Doncel-García
- OSI Bilbao-Basurto, Osakidetza Basque Health Service, Montevideo Etorb. 18, Bilbao E-48013, Spain.
| | - Álvaro Mosquera-Lajas
- Aspaldiko´s Psychosocial Service and Municipal Community Centers, Barrio Kanpanzar auzoa 7, Portugalete E-48920, Spain
| | - Naiara Fernández-Gutiérrez
- Geriatric Department, Igurco Servicios Socio-Sanitarios, Grupo IMQ, Máximo Aguirre 18 Bis, Floor 6, Bilbao E-48011, Spain.
| | - Ainhoa Fernández-Atutxa
- Department of Nursing I, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena, Leioa E-48940, Spain.
| | - Izarne Lizaso
- Department of Basic Psychological Processes and their Development, Faculty of Psychology, University of the Basque Country (UPV/EHU), Tolosa Hiribidea 70, San Sebastián E-20018, Spain.
| | - Jon Irazusta
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Barrio Sarriena, Leioa E-48940, Spain.
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22
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Yuan M, Wu Z, Luo B, Sha Y, Zhang H, Bi M, Fang Y. Gender-specified mediation of depression between sleep quality and short-term memory in older adults: Study in a semi-closed Island of Xiamen, China. Int J Geriatr Psychiatry 2021; 36:1514-1523. [PMID: 33899959 DOI: 10.1002/gps.5559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/09/2021] [Accepted: 04/17/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Both the quality of sleep and depression impact short-term memory (STM) while they influence each other. However, the underlying mechanisms are not yet clear. Herein, we aimed to explore the mediating effect of depression between sleep quality and STM in older adults and further test the gender differences in this relationship. METHODS A cluster sampling survey was carried out among 903 residents that were aged 60+ years in a semi-closed island of Xiamen, China, in 2019. The subjects' sleep quality and depression were measured using the Pittsburgh Sleep Quality Index (PSQI) and the 15-item Geriatric Depression Scale (GDS-15), respectively. The three-item recall test was utilized to measure STM function. Mediation analyses were performed using the structural equation model and bias-corrected bootstrap method. Next, the Wald-test was utilized to determine gender differences in the pathway. RESULTS Overall, 355 men and 508 women, with a mean age of 69.55 and 70.97, respectively, had valid data on the main variables. Depression was found to mediate the effect of sleep quality on STM (a*b = -0.076, p < 0.05). Interestingly, while this indirect effect existed in the female group (af *bf = -0.126, p < 0.05), it did not in the male group (am *bm = 0.017, p = 0.677). The Wald-test indicated no gender differences in the pathway from sleep quality to depression (p = 0.303). However, the pathway from depression to STM function was found to be significantly stronger for females than males (p = 0.0198). CONCLUSION Higher sleep quality was found to be associated with improved STM function. Furthermore, the association was found to be regulate indirectly by lower depressive symptoms for females, but directly for males. Therefore, appropriate psychological interventions may be beneficial to the maintenance of STM for older adults, particularly for women.
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Affiliation(s)
- Manqiong Yuan
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China.,Department of Preventive Medicine, Key Laboratory of Health Technology Assessment of Fujian Province, School of Public Health, Xiamen University, Xiamen, China
| | - Zhilin Wu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Bei Luo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Yude Sha
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Hemin Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Min Bi
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China.,Graduate School of Fujian Medical University, Fuzhou, Fujian, China
| | - Ya Fang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China.,Department of Preventive Medicine, Key Laboratory of Health Technology Assessment of Fujian Province, School of Public Health, Xiamen University, Xiamen, China
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23
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Navarro-Pardo E, Suay F, Murphy M. Ageing: Not only an age-related issue. Mech Ageing Dev 2021; 199:111568. [PMID: 34536447 DOI: 10.1016/j.mad.2021.111568] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 10/20/2022]
Abstract
Developments in the last century have led to an unprecedented increase in life expectancy. These changes open opportunities for humans to grow and develop in healthy and adaptive ways, adding life to years as well as years to life. There are also challenges, however - as we live longer, a greater number of people will experience chronic illness and disability, often linked to lifestyle factors. The current paper advances an argument that there are fundamental biological sex differences which, sometimes directly and sometime mediated by lifestyle factors, underpin the marked differences in morbidity and mortality that we find between the sexes. Furthermore, we argue that it is necessary to consider sex as a key factor in research on healthy ageing, allowing for the possibility that different patterns exist between males and females, and that therefore different approaches and interventions are required to optimise healthy ageing in both sexes.
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Affiliation(s)
- Esperanza Navarro-Pardo
- Department of Developmental and Educational Psychology, Universitat de València, Av. Blasco Ibañez, 21, 46008, València, Spain
| | - Ferran Suay
- Department of Biopsychology, Universitat de València, Av. Blasco Ibañez, 21, 46008, València, Spain
| | - Mike Murphy
- School of Applied Psychology, University College Cork, North Mall Campus, Cork, Ireland.
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24
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Abstract
Aging is an inevitable physiological process. A significant increase has been noted in the elderly population over the years. Aging population face challenges with physical health conditions, but also mental health problems. Care of the elderly is influenced by health conditions, health services, as well socio cultural factors. Gender plays an important role in the aging process with significant differences noted in the aging process, variations in health conditions as well care received. The current review addresses the role of gender in the aging process and its influence in the prevalence, clinical presentation and course of various mental and physical health conditions in the elderly. The review identifies gaps in understanding the gender perspectives related to long-term elderly care, legal and financial issues. The review emphasizes the necessity to address the gender perspective in aging to adequately meet the health demands of the elderly.
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Affiliation(s)
- Shruti Nair
- Dept. of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Neena Sawant
- Dept. of Psychiatry, Seth Gordhandas Sunderdas Medical College (GSMC) and the King Edward Memorial (KEM) Hospital, Mumbai, Maharashtra, India
| | - Harish Thippeswamy
- Dept. of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Geetha Desai
- Dept. of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
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25
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Tran T, Mach J, Gemikonakli G, Wu H, Allore H, Howlett SE, Little CB, Hilmer SN. Male-Female Differences In The Effects Of Age On Performance Measures Recorded For 23 Hours In Mice. J Gerontol A Biol Sci Med Sci 2021; 76:2141-2146. [PMID: 34171083 DOI: 10.1093/gerona/glab182] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Indexed: 11/13/2022] Open
Abstract
Functional independence is an important aspect of successful aging and differs with age and by sex in humans. Physical performance often declines earlier than other age-associated functional impairments. Rodent models are used to study pharmacological/toxicological effects of human therapies. However, physical outcomes in mice are usually assessed for short periods, with limited information on the influence of age and sex. Here, we investigated how age and sex affected murine physical performance over 23 hours of continuous observation. Young (3 months) and old (22 months) C57BL/6JArc male and female mice were assessed using the Laboratory Animal Behavior Observation, Registration, and Analysis System. Mice were individually housed for recording of distance travelled, mean gait speed, and durations of different physical activities. Compared to young mice of the same sex, old mice travelled significantly shorter distances with slower gait speeds, shorter durations of locomotion, rearing, climbing and immobility. Older mice groomed significantly more than young mice. Old females reared more during the light cycle than old males. Young females climbed substantially more than young males. Significant age*sex interactions were detected for rearing and climbing, whereby an age-related decline was greater in males than females. Our results suggest that old age reduces exploratory activities and increases grooming in mice. Age-related declines vary between sexes and tend to be greater in males. This non-invasive assessment can be applied to investigate how different interventions affect rodents of different ages and sexes, through the day-night cycle.
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Affiliation(s)
- Trang Tran
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Departments of Clinical Pharmacology and Aged Care, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - John Mach
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Departments of Clinical Pharmacology and Aged Care, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Gizem Gemikonakli
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Departments of Clinical Pharmacology and Aged Care, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Harry Wu
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Departments of Clinical Pharmacology and Aged Care, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Heather Allore
- Department of Internal Medicine, Yale University, New Haven, Connecticut, United States.,Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut, United States
| | - Susan E Howlett
- Department of Pharmacology and Medicine (Geriatric Medicine), Dalhousie University, Halifax, Nova Scotia, Canada
| | - Christopher B Little
- Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Raymond Purves Bone and Joint Research Laboratory, Kolling Institute of Medical Research, Institute of Bone and Joint Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia
| | - Sarah N Hilmer
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Royal North Shore Hospital, University of Sydney, St Leonards, New South Wales, Australia.,Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.,Departments of Clinical Pharmacology and Aged Care, Royal North Shore Hospital, St Leonards, New South Wales, Australia
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26
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Age- and gender-related differences in brain tissue microstructure revealed by multi-component T 2 relaxometry. Neurobiol Aging 2021; 106:68-79. [PMID: 34252873 DOI: 10.1016/j.neurobiolaging.2021.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 05/30/2021] [Accepted: 06/01/2021] [Indexed: 12/19/2022]
Abstract
In spite of extensive work, inconsistent findings and lack of specificity in most neuroimaging techniques used to examine age- and gender-related patterns in brain tissue microstructure indicate the need for additional research. Here, we performed the largest Multi-component T2 relaxometry cross-sectional study to date in healthy adults (N = 145, 18-60 years). Five quantitative microstructure parameters derived from various segments of the estimated T2 spectra were evaluated, allowing a more specific interpretation of results in terms of tissue microstructure. We found similar age-related myelin water fraction (MWF) patterns in men and women but we also observed differential male related results including increased MWF content in a few white matter tracts, a faster decline with age of the intra- and extra-cellular water fraction and its T2 relaxation time (i.e. steeper age related negative slopes) and a faster increase in the free and quasi-free water fraction, spanning the whole grey matter. Such results point to a sexual dimorphism in brain tissue microstructure and suggest a lesser vulnerability to age-related changes in women.
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27
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Karoglu-Eravsar ET, Tuz-Sasik MU, Adams MM. Environmental enrichment applied with sensory components prevents age-related decline in synaptic dynamics: Evidence from the zebrafish model organism. Exp Gerontol 2021; 149:111346. [PMID: 33838219 DOI: 10.1016/j.exger.2021.111346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 10/21/2022]
Abstract
Progression of cognitive decline with or without neurodegeneration varies among elderly subjects. The main aim of the current study was to illuminate the molecular mechanisms that promote and retain successful aging in the context of factors such as environment and gender, both of which alter the resilience of the aging brain. Environmental enrichment (EE) is one intervention that may lead to the maintenance of cognitive processing at older ages in both humans and animal subjects. EE is easily applied to different model organisms, including zebrafish, which show similar age-related molecular and behavioral changes as humans. Global changes in cellular and synaptic markers with respect to age, gender and 4-weeks of EE applied with sensory stimulation were investigated using the zebrafish model organism. Results indicated that EE increases brain weight in an age-dependent manner without affecting general body parameters like body mass index (BMI). Age-related declines in the presynaptic protein synaptophysin, AMPA-type glutamate receptor subunits and a post-mitotic neuronal marker were observed and short-term EE prevents these changes in aged animals, as well as elevates levels of the inhibitory scaffolding protein, gephyrin. Gender-driven alterations were observed in the levels of the glutamate receptor subunits. Oxidative stress markers were significantly increased in the old animals, while exposure to EE did not alter this pattern. These data suggest that EE with sensory stimulation exerts its effects mainly on age-related changes in synaptic dynamics, which likely increase brain resilience through specific cellular mechanisms.
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Affiliation(s)
- Elif Tugce Karoglu-Eravsar
- Interdisciplinary Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey; Department of Molecular Biology and Genetics, Zebrafish Facility, Bilkent University, Ankara, Turkey; Department of Psychology, Selcuk University, Konya, Turkey
| | - Melek Umay Tuz-Sasik
- Interdisciplinary Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey; Department of Molecular Biology and Genetics, Zebrafish Facility, Bilkent University, Ankara, Turkey
| | - Michelle M Adams
- Interdisciplinary Program in Neuroscience, Aysel Sabuncu Brain Research Center, Bilkent University, Ankara, Turkey; National Nanotechnology Research Center (UNAM), Bilkent University, Ankara, Turkey; Department of Molecular Biology and Genetics, Zebrafish Facility, Bilkent University, Ankara, Turkey; Department of Psychology, Bilkent University, Ankara, Turkey.
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28
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Roudbar MA, Mousavi SF, Ardestani SS, Lopes FB, Momen M, Gianola D, Khatib H. Prediction of biological age and evaluation of genome-wide dynamic methylomic changes throughout human aging. G3-GENES GENOMES GENETICS 2021; 11:6214518. [PMID: 33826720 PMCID: PMC8495934 DOI: 10.1093/g3journal/jkab112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/29/2021] [Indexed: 11/14/2022]
Abstract
The use of DNA methylation signatures to predict chronological age and aging rate is of interest in many fields, including disease prevention and treatment, forensics, and anti-aging medicine. Although a large number of methylation markers are significantly associated with age, most age-prediction methods use a few markers selected based on either previously published studies or datasets containing methylation information. Here, we implemented reproducing kernel Hilbert spaces (RKHS) regression and a ridge regression model in a Bayesian framework that utilized phenotypic and methylation profiles simultaneously to predict chronological age. We used over 450,000 CpG sites from the whole blood of a large cohort of 4,409 human individuals with a range of 10-101 years of age. Models were fitted using adjusted and un-adjusted methylation measurements for cell heterogeneity. Un-adjusted methylation scores delivered a significantly higher prediction accuracy than adjusted methylation data, with a correlation between age and predicted age of 0.98 and a root-mean-square error (RMSE) of 3.54 years in un-adjusted data, and 0.90 (correlation) and 7.16 (RMSE) years in adjusted data. Reducing the number of predictors (CpG sites) through subset selection improved predictive power with a correlation of 0.98 and an RMSE of 2.98 years in the RKHS model. We found distinct global methylation patterns, with a significant increase in the proportion of methylated cytosines in CpG islands and a decreased proportion in other CpG types, including CpG shore, shelf, and open sea (p < 5e-06). Epigenetic drift seemed to be a widespread phenomenon as more than 97% of the age-associated methylation sites had heteroscedasticity. Apparent methylomic aging rate (AMAR) had a sex-specific pattern, with an increase in AMAR in females with age related to males.
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Affiliation(s)
- Mahmoud Amiri Roudbar
- Department of Animal Science, Safiabad-Dezful Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education & Extension Organization (AREEO), Dezful, Iran
| | - Seyedeh Fatemeh Mousavi
- Department of Animal Science, Faculty of Agriculture Engineering, University of Kurdistan, Sanandaj, Iran
| | - Siavash Salek Ardestani
- Department of Animal Science and Aquaculture, Dalhousie University, Truro, NS B2N 5E3, Canada
| | - Fernando Brito Lopes
- Department of Animal Sciences, Sao Paulo State University, Julio de Mesquita Filho (UNESP), Prof. Paulo Donato Castelane, Jaboticabal, SP, 14884-900, Brazil
| | - Mehdi Momen
- Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Daniel Gianola
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, 53706, Madison, WI, USA
| | - Hasan Khatib
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, 53706, Madison, WI, USA
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29
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Rabipour S, Rajagopal S, Pasvanis S, Rajah MN. Generalization of memory-related brain function in asymptomatic older women with a family history of late onset Alzheimer's Disease: Results from the PREVENT-AD Cohort. Neurobiol Aging 2021; 104:42-56. [PMID: 33964608 DOI: 10.1016/j.neurobiolaging.2021.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/04/2021] [Accepted: 03/18/2021] [Indexed: 11/18/2022]
Abstract
Late-onset Alzheimer's disease (AD) disproportionately affects women compared to men. Episodic memory decline is one of the earliest and most pronounced deficits observed in AD. However, it remains unclear whether sex influences episodic memory-related brain function in cognitively intact older adults at risk of developing AD. Here we used task-based multivariate partial least squares analysis to examine sex differences in episodic memory-related brain activity and brain activity-behavior correlations in a matched sample of cognitively intact older women and men with a family history of AD from the PREVENT-AD cohort study in Montreal, Canada (Mage=63.03±3.78; Meducation=15.41±3.40). We observed sex differences in task-related brain activity and brain activity-behavior correlations during the encoding of object-location associative memories and object-only item memory, and the retrieval of object only item memories. Our findings suggest a generalization of episodic memory-related brain activation and performance in women compared to men. Follow up analyses should test for sex differences in the relationship between brain activity patterns and performance longitudinally, in association with risk factors for AD development. This article is part of the Virtual Special Issue titled COGNITIVE NEUROSCIENCE OF HEALTHY AND PATHOLOGICAL AGING. The full issue can be found on ScienceDirect at https://www.sciencedirect.com/journal/neurobiology-of-aging/special-issue/105379XPWJP.
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Affiliation(s)
- Sheida Rabipour
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada; Department of Psychiatry, McGill University, Montreal, Canada
| | | | - Stamatoula Pasvanis
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada
| | - M Natasha Rajah
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada; Department of Psychiatry, McGill University, Montreal, Canada.
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30
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Díaz-Santos M, Suárez PA, Marquine MJ, Umlauf A, Rivera Mindt M, Artiola i Fortuny L, Heaton RK, Cherner M. Updated demographically adjusted norms for the Brief Visuospatial Memory Test-revised and Hopkins Verbal Learning Test-revised in Spanish-speakers from the U.S.-Mexico border region: The NP-NUMBRS project. Clin Neuropsychol 2021; 35:374-395. [PMID: 33380275 PMCID: PMC8218787 DOI: 10.1080/13854046.2020.1861329] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVE We generated demographically adjusted norms for the Brief Visuospatial Memory Test-revised (BVMT-R) and the Hopkins Verbal Learning Test-revised (HVLT-R) for Spanish-speakers from the U.S.-Mexico border region as part of a larger normative project. Methods: Healthy native Spanish-speakers (n = 203; Age: 19-60 years; Education: 0-20 years, 59% women) living in Arizona (n = 63) and California (n = 140) completed the BVMT-R and the HVLT-R as part of the larger Neuropsychological Norms for the U.S.-Mexico Border Region in Spanish (NP-NUMBRS) project. Raw scores were converted to T-scores utilizing fractional polynomial equations, which considered linear and non-linear effects of demographic variables (age, education, sex). To demonstrate the benefit of employing our population-specific norms, we computed the proportion of our participants whose test performance fell below one standard deviation (T-score < 40) when applying published norms from non-Hispanic English-speakers, compared to the base rate derived from the new normative sample. Results: The resulting demographically adjusted T-scores showed the expected psychometric properties and corrected the misclassification in rates of impairment that were obtained when applying norms based on the English-speaking sample. Unexpectedly, participants in Arizona obtained slightly lower HVLT-R T-scores than those in California. This site effect was not explained by available sociodemographic or language factors. Supplementary formulas were computed adjusting for site in addition to demographics. Conclusions: These updated norms improve accuracy in identification of learning and memory impairment among Spanish-speaking adults living in the U.S.-Mexico border region. It will be important to generate additional data for elders, as the present norms are only applicable to adults age 60 and younger.
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Affiliation(s)
- Mirella Díaz-Santos
- Hispanic Neuropsychiatric Center of Excellence – Cultural Neuropsychology Program, Semel Institute for Neuroscience & Human Behavior, Department of Psychiatry & Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
| | - Paola A. Suárez
- Hispanic Neuropsychiatric Center of Excellence – Cultural Neuropsychology Program, Semel Institute for Neuroscience & Human Behavior, Department of Psychiatry & Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
| | - María J. Marquine
- Department of Psychiatry, University of California San Diego, La Jolla, CA USA
| | - Anya Umlauf
- Department of Psychiatry, University of California San Diego, La Jolla, CA USA
| | - Monica Rivera Mindt
- Department of Psychology & Latin American Latino Studies Institute, Fordham University and Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Robert K. Heaton
- Department of Psychiatry, University of California San Diego, La Jolla, CA USA
| | - Mariana Cherner
- Department of Psychiatry, University of California San Diego, La Jolla, CA USA
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Reas ET, Hagler DJ, Zhong AJ, Lee RR, Dale AM, McEvoy LK. Brain microstructure mediates sex-specific patterns of cognitive aging. Aging (Albany NY) 2021; 13:3218-3238. [PMID: 33510046 PMCID: PMC7906181 DOI: 10.18632/aging.202561] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/14/2021] [Indexed: 11/25/2022]
Abstract
Normal brain aging is characterized by declining neuronal integrity, yet it remains unclear how microstructural injury influences cognitive aging and whether such mechanisms differ between sexes. Using restriction spectrum imaging (RSI), we examined sex differences in associations between brain microstructure and cognitive function in 147 community-dwelling older men and women (56-99 years). Gray and white matter microstructure correlated with global cognition, executive function, visuospatial memory, episodic memory, and logical memory, with the strongest associations for restricted, hindered and free isotropic diffusion. Associations were stronger for women than for men, a difference likely due to greater age-related variability in cognitive scores and microstructure in women. Isotropic diffusion mediated effects of age on cognition for both sexes, though distinct mediation patterns were present for women and men. For women, hippocampal and corpus callosum microstructure mediated age effects on verbal and visuospatial memory, respectively, whereas for men fiber microstructure (mainly fornix and corpus callosum) mediated age effects on executive function and visuospatial memory. These findings implicate sex-specific pathways by which changing brain cytoarchitecture contributes to cognitive aging, and suggest that RSI may be useful for evaluating risk for cognitive decline or monitoring efficacy of interventions to preserve brain health in later life.
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Affiliation(s)
- Emilie T Reas
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Donald J Hagler
- Department of Radiology, University of California, San Diego, La Jolla, CA 92093, USA
| | | | - Roland R Lee
- Department of Radiology, University of California, San Diego, La Jolla, CA 92093, USA.,Radiology Services, VA San Diego Healthcare System, La Jolla, CA 92093, USA
| | - Anders M Dale
- Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA.,Department of Radiology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Linda K McEvoy
- Department of Radiology, University of California, San Diego, La Jolla, CA 92093, USA.,Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA 92093, USA
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Than S, Moran C, Beare R, Vincent AJ, Collyer TA, Wang W, Callisaya ML, Thomson R, Phan TG, Fornito A, Srikanth VK. Interactions Between Age, Sex, Menopause, and Brain Structure at Midlife: A UK Biobank Study. J Clin Endocrinol Metab 2021; 106:410-420. [PMID: 33205159 DOI: 10.1210/clinem/dgaa847] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Age and female sex are risk factors for dementia, and menopause is associated with cognitive dysfunction. Previous work largely considered the effects of sex and menopause as being independent of age. We studied whether age interacts with sex or menopause in explaining imaging biomarkers of dementia during midlife. METHODS In this cross-sectional study of UK Biobank participants with brain magnetic resonance imaging (MRI), we explored the interaction of age with sex or menopausal status in explaining total brain volume (TBV), gray matter volume (GMV), white matter volume (WMV), white matter hyperintensity volume (WMHV), regional cortical volume , and subcortical volume. RESULTS Data were available for 1827 postmenopausal women, 230 pre/perimenopausal women and 2165 men (median age 63.3 years). There was a significant interaction between age and sex (P = .024) for TBV, where the inverse association age with TBV was steeper in women (β = -5.35 mL/year) than in men (β = -4.77 mL/year). Similar age-sex interactions were also observed for GMV and WMV. In women, there was a significant interaction between age and menopausal status (P = .007) where the inverse association of age with TBV was steeper in postmenopausal (β = -5.89 mL/year) than in pre/perimenopausal women (β = -1.61 mL/year). Similar age-menopause interactions were found in predicting lower GMV and higher WMHV. Differences in the direction of these age-sex and age-menopause interactions were found for regional cortical and subcortical brain volumes. CONCLUSION Sex and menopause both interact with age during midlife in explaining MRI biomarkers of dementia. Further work is required to understand the mechanisms driving these interactions to develop strategies for delaying dementia.
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Affiliation(s)
- Stephanie Than
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Department of Geriatric Medicine, Peninsula Health, Melbourne, Victoria, Australia
| | - Chris Moran
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Department of Geriatric Medicine, Peninsula Health, Melbourne, Victoria, Australia
| | - Richard Beare
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Developmental Imaging, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
| | - Amanda J Vincent
- Monash Centre for Health Research and Implementation, School of Public Health and Preventative Medicine, Monash University, Melbourne, Victoria, Australia
- Department of Endocrinology, Monash Health, Melbourne, Victoria, Australia
| | - Taya A Collyer
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
| | - Wei Wang
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Department of Clinical Epidemiology, School of Public Health and Preventative Medicine, Cabrini Institute, Monash University, Melbourne, Victoria, Australia
| | - Michele L Callisaya
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Russell Thomson
- Centre for Research in Mathematics, Western Sydney University, Sydney, New South Wales, Australia
| | - Thanh G Phan
- Stroke and Aging Research Group, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia
| | - Alex Fornito
- Monash Biomedical Imaging, School of Psychological Science, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia
| | - Velandai K Srikanth
- Academic Unit, Peninsula Clinical School, Central Clinical School, Melbourne, Monash University, Victoria, Australia
- Department of Geriatric Medicine, Peninsula Health, Melbourne, Victoria, Australia
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Using Fractal Dimension Analysis with the Desikan-Killiany Atlas to Assess the Effects of Normal Aging on Subregional Cortex Alterations in Adulthood. Brain Sci 2021; 11:brainsci11010107. [PMID: 33466961 PMCID: PMC7829920 DOI: 10.3390/brainsci11010107] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/23/2020] [Accepted: 12/31/2020] [Indexed: 12/11/2022] Open
Abstract
Normal aging is associated with functional and structural alterations in the human brain. The effects of normal aging and gender on morphological changes in specific regions of the brain are unknown. The fractal dimension (FD) can be a quantitative measure of cerebral folding. In this study, we used 3D-FD analysis with the Desikan–Killiany (DK) atlas to assess subregional morphological changes in adulthood. A total of 258 participants (112 women and 146 men) aged 30–85 years participated in this study. Participants in the middle-age group exhibited a decreased FD in the lateral frontal lobes, which then spread to the temporal and parietal lobes. Men exhibited an earlier and more significant decrease in FD values, mainly in the right frontal and left parietal lobes. Men exhibited more of a decrease in FD values in the subregions on the left than those in the right, whereas women exhibited more of a decrease in the lateral subregions. Older men were at a higher risk of developing mild cognitive impairment (MCI) and exhibited age-related memory decline earlier than women. Our FD analysis using the DK atlas-based prediagnosis may provide a suitable tool for assessing normal aging and neurodegeneration between groups or in individual patients.
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Moran C, Gilsanz P, Beeri MS, Whitmer RA, Lacy ME. Sex, diabetes status and cognition: findings from the study of longevity in diabetes. BMJ Open Diabetes Res Care 2021; 9:9/1/e001646. [PMID: 33509934 PMCID: PMC7845709 DOI: 10.1136/bmjdrc-2020-001646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/02/2020] [Accepted: 12/20/2020] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Women comprise two-thirds of people with dementia, making female sex a significant dementia risk factor. Both type 1 diabetes (T1D) and type 2 diabetes (T2D) are known dementia risk factors with an increasing global incidence. Understanding whether subtle sex differences persist in cognitive function prior to dementia in the context of diabetes may help elucidate the magnitude of sex effects on dementia risk. RESEARCH DESIGN AND METHODS We examined cross-sectional data from the Study of Longevity in Diabetes (SOLID), a prospective cohort study of members of Kaiser Permanente Northern California aged 60 years and older with T1D (n=758), T2D (n=232) and without either T1D or T2D (n=247). We used factor analysis to generate summary scores of cognitive domains and used regression analyses to examine the associations between sex and cognition adjusting for sociodemographic and cardiovascular confounders. RESULTS We included 1237 participants (630 women and 607 men) with mean age 68 years. By design, the distribution of men and women in T1D, T2D and no diabetes was similar. Women had better cognitive performance than men in global cognition (β=0.21, 95% CI 0.16 to 0.26), language (β=0.08, 95% CI 0.004 to 0.15), executive function (β=0.13, 95% CI 0.05 to 0.20), episodic verbal memory (β=0.68, 95% CI 0.59 to 0.77) and attention (β=0.20, 95% CI 0.11 to 0.28) but not in episodic visual memory (β=0.006, 95% CI -0.07 to 0.09) adjusting for age and education independent of diabetes status. We did not find an interaction between sex and diabetes status for any of the cognitive outcomes. CONCLUSIONS Women in late mid-life have better cognitive performance than men in many cognitive domains independent of the presence of T1D or T2D. Further work is required to understand whether these differences change over time or in older cohorts and to understand their relationship to subsequent dementia.
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Affiliation(s)
- Chris Moran
- Academic Unit, Peninsula Clinical School, Monash University Central Clinical School, Melbourne, Victoria, Australia
- Peninsula Health, Frankston, Victoria, Australia
| | - Paola Gilsanz
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
| | - Michal S Beeri
- Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Joseph Sagol Neuroscience, Sheba Medical Center, Tel Hashomer, Israel
| | - Rachel A Whitmer
- Division of Research, Kaiser Permanente Northern California, Oakland, California, USA
- Department of Epidemiology, University of California Davis School of Medicine, Davis, California, USA
| | - Mary E Lacy
- Department of Epidemiology, University of Kentucky, Lexington, Kentucky, USA
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Kuszewski JC, Howe PRC, Wong RHX. Evaluation of Cognitive Performance following Fish-Oil and Curcumin Supplementation in Middle-Aged and Older Adults with Overweight or Obesity. J Nutr 2020; 150:3190-3199. [PMID: 33097947 DOI: 10.1093/jn/nxaa299] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/03/2020] [Accepted: 09/10/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Obesity accelerates age-related cognitive decline, which is partly mediated by vascular dysfunction. OBJECTIVE The aim was to test the hypothesis that supplementation with fish oil and curcumin can enhance cognitive performance by improving cerebral circulatory function in overweight or obese middle-aged to older adults. METHODS In a 16-wk double-blind, placebo-controlled intervention trial, adults [50-80 y; BMI (kg/m2): 25-40] were randomly assigned to either fish oil (2000 mg/d DHA + 400 mg/d EPA), curcumin (160 mg/d), or a combination. Effects on cerebrovascular function (primary outcome) and cardiovascular risk factors were reported previously. Effects on cognitive performance and cerebrovascular responsiveness (CVR) to cognitive stimuli are reported herein. One-factor ANOVA with post hoc analyses was conducted between groups in the whole cohort and in males and females separately. Two-factor ANOVA was conducted to assess independent effects of fish oil and curcumin and a potential interaction. Correlations between outcomes (those obtained herein and previously reported) were also examined. RESULTS Compared with placebo, fish oil improved CVR to a processing speed test (4.4% ± 1.9% vs. -2.2% ± 2.1%; P = 0.023) and processing speed in males only (Z-score: 0.6 ± 0.2 vs. 0.1 ± 0.2; P = 0.043). Changes in processing speed correlated inversely with changes in blood pressure (R = -0.243, P = 0.006) and C-reactive protein (R = -0.183, P = 0.046). Curcumin improved CVR in a working memory test (3.6% ± 1.2% vs. -0.2% ± 0.2%, P = 0.026) and, in males only, performance of a verbal memory test compared with placebo (Z-score: 0.2 ± 0.1 vs. -0.5 ± 0.2, P = 0.039). Combining fish oil with curcumin did not produce additional benefits. CONCLUSIONS Improvements in processing speed following fish-oil supplementation in middle-aged to older males might be mediated by improvements in circulatory function. Mechanisms underlying the cognitive benefit seen with curcumin are unknown. As cognitive benefits were found in males only, further evaluation of sex differences in responsiveness to supplementation is warranted. This trial was registered at the Australian and New Zealand Clinical Trial Register at https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=370788 as ACTRN12616000732482p.
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Affiliation(s)
- Julia C Kuszewski
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia
| | - Peter R C Howe
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,Institute for Resilient Regions, University of Southern Queensland, Springfield Central, Australia.,School of Health Sciences, University of South Australia, Adelaide, Australia
| | - Rachel H X Wong
- Clinical Nutrition Research Centre, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia.,Institute for Resilient Regions, University of Southern Queensland, Springfield Central, Australia
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Ammar A, Trabelsi K, Boukhris O, Bouaziz B, Müller P, Glenn JM, Chamari K, Müller N, Chtourou H, Driss T, Hökelmann A. Moderators of the Impact of (Poly)Phenols Interventions on Psychomotor Functions and BDNF: Insights from Subgroup Analysis and Meta-Regression. Nutrients 2020; 12:nu12092872. [PMID: 32961777 PMCID: PMC7551086 DOI: 10.3390/nu12092872] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recent anti-aging interventions have shown contradictory impacts of (poly)phenols regarding the prevention of cognitive decline and maintenance of brain function. These discrepancies have been linked to between-study differences in supplementation protocols. This subgroup analysis and meta-regression aimed to (i) examine differential effects of moderator variables related to participant characteristics and supplementation protocols and (ii) identify practical recommendations to design effective (poly)phenol supplementation protocols for future anti-aging interventions. METHODS Multiple electronic databases (Web of Science; PubMed) searched for relevant intervention published from inception to July 2019. Using the PICOS criteria, a total of 4303 records were screened. Only high-quality studies (n = 15) were included in the final analyses. Random-effects meta-analysis was used, and we calculated standard differences in means (SDM), effect size (ES), and 95% confidence intervals (CI) for two sufficiently comparable items (i.e., psychomotor function and brain-derived neurotrophic factor (BDNF)). When significant heterogeneity was computed (I2 > 50%), a subgroup and meta-regression analysis were performed to examine the moderation effects of participant characteristics and supplementation protocols. RESULTS The reviewed studies support the beneficial effect of (poly)phenols-rich supplementation on psychomotor functions (ES = -0.677, p = 0.001) and brain plasticity (ES = 1.168, p = 0.028). Subgroup analysis revealed higher beneficial impacts of (poly)phenols (i) in younger populations compared to older (SDM = -0.89 vs. -0.47 for psychomotor performance, and 2.41 vs. 0.07 for BDNF, respectively), (ii) following an acute compared to chronic supplementation (SDM = -1.02 vs. -0.43 for psychomotor performance), and (iii) using a phenolic compound with medium compared to low bioavailability rates (SDM = -0.76 vs. -0.68 for psychomotor performance and 3.57 vs. 0.07 for DBNF, respectively). Meta-regressions revealed greater improvement in BDNF levels with lower percentages of female participants (Q = 40.15, df = 6, p < 0.001) and a skewed scatter plot toward a greater impact using higher (poly)phenols doses. CONCLUSION This review suggests that age group, gender, the used phenolic compounds, their human bioavailability rate, and the supplementation dose as the primary moderator variables relating to the beneficial effects of (poly)phenol consumption on cognitive and brain function in humans. Therefore, it seems more advantageous to start anti-aging (poly)phenol interventions in adults earlier in life using medium (≈500 mg) to high doses (≈1000 mg) of phenolic compounds, with at least medium bioavailability rate (≥9%).
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Affiliation(s)
- Achraf Ammar
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
- Correspondence: ; Tel.: +49-391-67-57395
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Omar Boukhris
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Bassem Bouaziz
- Higher Institute of Computer Science and Multimedia of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Patrick Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39104 Magdeburg, Germany
| | - Jordan M. Glenn
- Department of Health, Exercise Science Research Center, Human Performance and Recreation, University of Arkansas, Fayetteville, AR 72701, USA;
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA
| | - Karim Chamari
- ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha PoBox 29222, Qatar;
- Laboratory “Sport Performance Optimization”, (CNMSS), ISSEP Ksar-Said, Manouba University, Manouba 1004, Tunisia
| | - Notger Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University, 92000 Nanterre, France;
| | - Anita Hökelmann
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
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Rabipour S, Rajagopal S, Yu E, Pasvanis S, Lafaille-Magnan ME, Breitner J, Rajah MN. APOE4 Status is Related to Differences in Memory-Related Brain Function in Asymptomatic Older Adults with Family History of Alzheimer's Disease: Baseline Analysis of the PREVENT-AD Task Functional MRI Dataset. J Alzheimers Dis 2020; 76:97-119. [PMID: 32474466 PMCID: PMC7369116 DOI: 10.3233/jad-191292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Episodic memory decline is one of the earliest symptoms of late-onset Alzheimer's disease (AD). Older adults with the apolipoprotein E ɛ4 (+APOE4) genetic risk factor for AD may exhibit altered patterns of memory-related brain activity years prior to initial symptom onset. OBJECTIVE Here we report the baseline episodic memory task functional MRI results from the PRe-symptomatic EValuation of Experimental or Novel Treatments for Alzheimer's Disease cohort in Montreal, Canada, in which 327 healthy older adults were scanned within 15 years of their parent's conversion to AD. METHODS Volunteers were scanned as they encoded and retrieved object-location spatial source associations. The task was designed to discriminate between brain activity related to spatial source recollection and object-only (recognition) memory. We used multivariate partial least squares (PLS) to test the hypothesis that +APOE4 adults with family history of AD would exhibit altered patterns of brain activity in the recollection-related memory network, comprised of medial frontal, parietal, and medial temporal cortices, compared to APOE4 non-carriers (-APOE4). We also examined group differences in the correlation between event-related brain activity and memory performance. RESULTS We found group similarities in memory performance and in task-related brain activity in the recollection network, but differences in brain activity-behavior correlations in ventral occipito-temporal, medial temporal, and medial prefrontal cortices during episodic encoding. CONCLUSION These findings are consistent with previous literature on the influence of APOE4 on brain activity and provide new perspective on potential gene-based differences in brain-behavior relationships in people with first-degree family history of AD.
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Affiliation(s)
- Sheida Rabipour
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada
- Department of Psychiatry, McGill University, Montreal, Canada
| | | | - Elsa Yu
- Integrated Program in Neuroscience, McGill University, Montreal, Canada
| | - Stamatoula Pasvanis
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada
| | - Marie-Elyse Lafaille-Magnan
- Department of Psychiatry, McGill University, Montreal, Canada
- Center for Studies on Prevention of Alzheimer’s Disease, Montreal, Canada
- Lady Davis Center for Medical Research, Jewish General Hospital, Montreal, Canada
| | - John Breitner
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada
- Center for Studies on Prevention of Alzheimer’s Disease, Montreal, Canada
| | | | - M. Natasha Rajah
- Centre for Cerebral Imaging, Douglas Hospital Research Centre, Montreal, Canada
- Department of Psychiatry, McGill University, Montreal, Canada
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Tse VWS, Crabtree J, Islam S, Stott J. Comparing Intellectual and Memory Abilities of Older Autistic Adults with Typically Developing Older Adults Using WAIS-IV and WMS-IV. J Autism Dev Disord 2019; 49:4123-4133. [PMID: 31440868 PMCID: PMC6751140 DOI: 10.1007/s10803-019-04122-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This study aimed to compare cognitive and memory abilities between older adults with and without autism over the age of 50. Twenty-eight individuals with autism and 29 typically developing (TD) older adults took part in the current study. Participants’ cognitive and memory abilities were assessed by WAIS-IV and WMS-IV. Older autistic adults were found to have poorer performance in processing speed and visual working memory, but they performed at a similar level as TD controls in all other domains. Poorer processing speed and visual working memory are also often found to be associated with age-related decline in neurotypical adults. Longitudinal studies are warranted to explore how the combination of ageing and autism affects cognitive functioning in older adults.
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Affiliation(s)
- Venus W S Tse
- Research Department of Clinical, Educational and Health Psychology, University College London UCL, Gower Street, London, WC1E 6BT, UK.
| | | | | | - Joshua Stott
- Research Department of Clinical, Educational and Health Psychology, University College London UCL, Gower Street, London, WC1E 6BT, UK
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Differential Effect of Demographics, Processing Speed, and Depression on Cognitive Function in 755 Non-demented Community-dwelling Elderly Individuals. Cogn Behav Neurol 2019; 32:236-246. [DOI: 10.1097/wnn.0000000000000211] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Subramaniapillai S, Rajagopal S, Elshiekh A, Pasvanis S, Ankudowich E, Rajah MN. Sex Differences in the Neural Correlates of Spatial Context Memory Decline in Healthy Aging. J Cogn Neurosci 2019; 31:1895-1916. [DOI: 10.1162/jocn_a_01455] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aging is associated with episodic memory decline and alterations in memory-related brain function. However, it remains unclear if age-related memory decline is associated with similar patterns of brain aging in women and men. In the current task fMRI study, we tested the hypothesis that there are sex differences in the effect of age and memory performance on brain activity during episodic encoding and retrieval of face–location associations (spatial context memory). Forty-one women and 41 men between the ages of 21 and 76 years participated in this study. Between-group multivariate partial least squares analysis of the fMRI data was conducted to directly test for sex differences and similarities in age-related and performance-related patterns of brain activity. Our behavioral analysis indicated no significant sex differences in retrieval accuracy on the fMRI tasks. In relation to performance effects, we observed similarities and differences in how retrieval accuracy related to brain activity in women and men. Both sexes activated dorsal and lateral PFC, inferior parietal cortex, and left parahippocampal gyrus at encoding, and this supported subsequent memory performance. However, there were sex differences in retrieval activity in these same regions and in lateral occipital-temporal and ventrolateral PFC. In relation to age effects, we observed sex differences in the effect of age on memory-related activity within PFC, inferior parietal cortex, parahippocampal gyrus, and lateral occipital-temporal cortices. Overall, our findings suggest that the neural correlates of age-related spatial context memory decline differ in women compared with men.
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Affiliation(s)
| | | | | | | | | | - M. Natasha Rajah
- McGill University
- Brain Imaging Centre, Douglas Institute Research Centre, Verdun, QC, Canada
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41
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Toschi N, Gisbert RA, Passamonti L, Canals S, De Santis S. Multishell diffusion imaging reveals sex-specific trajectories of early white matter degeneration in normal aging. Neurobiol Aging 2019; 86:191-200. [PMID: 31902522 DOI: 10.1016/j.neurobiolaging.2019.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/08/2019] [Accepted: 11/21/2019] [Indexed: 02/08/2023]
Abstract
During aging, human white matter (WM) is subject to dynamic structural changes which have a deep impact on healthy and pathological evolution of the brain through the lifespan; characterizing this pattern is of key importance for understanding brain development, maturation, and aging as well as for studying its pathological alterations. Diffusion magnetic resonance imaging (MRI) can provide a quantitative assessment of the white-matter microstructural organization that characterizes these trajectories. Here, we use both conventional and advanced diffusion MRI in a cohort of 91 individuals (age range: 13-62 years) to study region- and sex-specific features of WM microstructural integrity in healthy aging. We focus on the age at which microstructural imaging parameters invert their development trend as the time point which marks the onset of microstructural decline in WM. Importantly, our results indicate that age-related brain changes begin earlier in males than females and affect more frontal regions-in accordance with evolutionary theories and numerous evidences across non-MRI domains. Advanced diffusion MRI reveals age-related WM modification patterns which cannot be detected using conventional diffusion tensor imaging.
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Affiliation(s)
- Nicola Toschi
- Athinoula A. Martinos Center for Biomedical Imaging and Harvard Medical School, Boston, MA, USA; Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | | | - Luca Passamonti
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK; Istituto di Bioimmagini e Fisiologia Molecolare (IBFM), Consiglio Nazionale delle Ricerche (CNR), Segrate, Milano, Italia
| | - Santiago Canals
- Instituto de Neurociencias de Alicante (CSIC-UMH), San Juan de Alicante, Spain
| | - Silvia De Santis
- Instituto de Neurociencias de Alicante (CSIC-UMH), San Juan de Alicante, Spain; Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff University, Cardiff, UK.
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42
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Graves WW, Coulanges L, Levinson H, Boukrina O, Conant LL. Neural Effects of Gender and Age Interact in Reading. Front Neurosci 2019; 13:1115. [PMID: 31680843 PMCID: PMC6812500 DOI: 10.3389/fnins.2019.01115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/02/2019] [Indexed: 12/22/2022] Open
Abstract
There has been an enduring fascination with the possibility of gender differences in the brain basis of language, yet the evidence has been largely equivocal. Evidence does exist, however, for women being at greater risk than men for developing psychomotor slowing and even Alzheimer disease with advancing age, although this may in part at least be due to women living longer. We examined whether gender, age, or their interaction influenced language-related or more general processes in reading. Reading consists of elements related to language, such as the processing of word sound patterns (phonology) and meanings (semantics), along with the lead-in processes of visual perception and orthographic (visual word form) processing that are specific to reading. To test for any influence of gender and age on either semantic processing or orthography-phonology mapping, we tested for an interaction of these factors on differences between meaningful words and meaningless but pronounceable non-words. We also tested for effects of gender and age on how the number of letters in a word modulates neural activity for reading. This lead-in process presumably relates most to orthography. Behaviorally, reading accuracy declined with age for both men and women, but the decline was steeper for men. Neurally, interactions between gender and age were found exclusively in medial orbitofrontal cortex (mOFC). These factors influenced the word-non-word contrast, but not the parametric effect of number of letters. Men showed increasing activation with age for non-words compared to words. Women showed only slightly decreasing activation with age for novel letter strings. Overall, we found interactive effects of gender and age in the mOFC on the left primarily for novel letter strings, but no such interaction for a contrast that emphasized visual form processing. Thus the interaction of gender with age in the mOFC may relate most to orthography-phonology conversion for unfamiliar letter strings. More generally, this suggests that efforts to investigate effects of gender on language-related tasks may benefit from taking into account age and the type of cognitive process being highlighted.
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Affiliation(s)
- William W. Graves
- Department of Psychology, Rutgers University–Newark, Newark, NJ, United States
| | - Linsah Coulanges
- Department of Psychology, Rutgers University–Newark, Newark, NJ, United States
| | - Hillary Levinson
- Department of Psychology, Rutgers University–Newark, Newark, NJ, United States
| | - Olga Boukrina
- Center for Stroke Rehabilitation Research, Kessler Foundation, West Orange, NJ, United States
| | - Lisa L. Conant
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI, United States
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Jamadar SD, Sforazzini F, Raniga P, Ferris NJ, Paton B, Bailey MJ, Brodtmann A, Yates PA, Donnan GA, Ward SA, Woods RL, Storey E, McNeil JJ, Egan GF. Sexual Dimorphism of Resting-State Network Connectivity in Healthy Ageing. J Gerontol B Psychol Sci Soc Sci 2019; 74:1121-1131. [PMID: 29471348 PMCID: PMC6748717 DOI: 10.1093/geronb/gby004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 01/30/2018] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES The onset of many illnesses is confounded with age and sex. Increasing age is a risk factor for the development of many illnesses, and sexual dimorphism influences brain anatomy, function, and cognition. Here, we examine frequency-specific connectivity in resting-state networks in a large sample (n = 406) of healthy aged adults. METHOD We quantify frequency-specific connectivity in three resting-state networks known to be implicated in age-related decline: the default mode, dorsal attention, and salience networks, using multiband functional magnetic resonance imaging. Frequency-specific connectivity was quantified in four bands: low (0.015-0.027 Hz), moderately low (0.027-0.073 Hz), moderately high (0.073-0.198 Hz), and high (0.198-0.5 Hz) frequency bands, using mean intensity and spatial extent. Differences in connectivity between the sexes in each of the three networks were examined. RESULTS Each network showed the largest intensity and spatial extent at low frequencies and smallest extent at high frequencies. Males showed greater connectivity than females in the salience network. Females showed greater connectivity than males in the default mode network. DISCUSSION Results in this healthy aged cohort are compatible with those obtained in young samples, suggesting that frequency-specific connectivity, and differences between the sexes, are maintained into older age. Our results indicate that sex should be considered as an influencing factor in studies of resting-state connectivity.
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Affiliation(s)
- Sharna D Jamadar
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
- ARC Centre of Excellence for Integrative Brain Function, Monash University, Clayton, Victoria, Australia
- Monash Institute for Cognitive and Clinical Neurosciences, Monash University, Clayton, Victoria, Australia
| | - Francesco Sforazzini
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
- Monash Institute for Cognitive and Clinical Neurosciences, Monash University, Clayton, Victoria, Australia
| | - Parnesh Raniga
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
- CSIRO eHealth Research Centre, Herston, Brisbane, Queensland, Australia
| | - Nicholas J Ferris
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
| | - Bryan Paton
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
- School of Psychology, University of Newcastle, Callaghan, New South Wales, Australia
| | - Michael J Bailey
- Department of Epidemiology and Preventive Medicine, Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia
| | - Amy Brodtmann
- Behavioural Neuroscience, Florey Institute for Neuroscience and Mental Health, Melbourne Brain Centre, Heidelberg, Victoria, Australia
| | - Paul A Yates
- Department of Aged Care Services, Austin Health, Heidelberg, Victoria, Australia
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Geoffrey A Donnan
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Stephanie A Ward
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Monash Ageing Research Centre (MONARC), The Kingston Centre, Cheltenham, Victoria, Australia
| | - Robyn L Woods
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Elsdon Storey
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
- Department of Neuroscience (Medicine), Monash University, Alfred Hospital Campus, Melbourne, Victoria, Australia
| | - John J McNeil
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Gary F Egan
- Monash Biomedical Imaging, Monash University, Clayton, Victoria, Australia
- ARC Centre of Excellence for Integrative Brain Function, Monash University, Clayton, Victoria, Australia
- Monash Institute for Cognitive and Clinical Neurosciences, Monash University, Clayton, Victoria, Australia
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44
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Zhao L, Matloff W, Ning K, Kim H, Dinov ID, Toga AW. Age-Related Differences in Brain Morphology and the Modifiers in Middle-Aged and Older Adults. Cereb Cortex 2019; 29:4169-4193. [PMID: 30535294 PMCID: PMC6931275 DOI: 10.1093/cercor/bhy300] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/05/2018] [Accepted: 11/07/2018] [Indexed: 12/11/2022] Open
Abstract
Brain structural morphology differs with age. This study examined age-differences in surface-based morphometric measures of cortical thickness, volume, and surface area in a well-defined sample of 8137 generally healthy UK Biobank participants aged 45-79 years. We illustrate that the complexity of age-related brain morphological differences may be related to the laminar organization and regional evolutionary history of the cortex, and age of about 60 is a break point for increasing negative associations between age and brain morphology in Alzheimer's disease (AD)-prone areas. We also report novel relationships of age-related cortical differences with individual factors of sex, cognitive functions of fluid intelligence, reaction time and prospective memory, cigarette smoking, alcohol consumption, sleep disruption, genetic markers of apolipoprotein E, brain-derived neurotrophic factor, catechol-O-methyltransferase, and several genome-wide association study loci for AD and further reveal joint effects of cognitive functions, lifestyle behaviors, and education on age-related cortical differences. These findings provide one of the most extensive characterizations of age associations with major brain morphological measures and improve our understanding of normal structural brain aging and its potential modifiers.
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Affiliation(s)
- Lu Zhao
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - William Matloff
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Kaida Ning
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Hosung Kim
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Ivo D Dinov
- Statistics Online Computational Resource, HBBS, University of Michigan, Ann Arbor, MI 48109-2003, USA
- Michigan Institute for Data Science, HBBS, University of Michigan, Ann Arbor, MI 48109-1042, USA
| | - Arthur W Toga
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
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45
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Lee JS, Kim S, Yoo H, Park S, Jang YK, Kim HJ, Kim KW, Kim Y, Jang H, Park KC, Yaffe K, Yang JJ, Lee JM, Na DL, Seo SW. Trajectories of Physiological Brain Aging and Related Factors in People Aged from 20 to over-80. J Alzheimers Dis 2019; 65:1237-1246. [PMID: 30149442 DOI: 10.3233/jad-170537] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND/OBJECTIVE In this study, we investigated a long-term trajectory of brain aging (from the 20 s to over-80) in cognitively normal (CN) individuals. We further determined whether differences in sex, education years, and apolipoprotein E ε 4 status affect age-related cortical thinning. METHODS A total of 2,944 CN individuals who underwent high-resolution (3.0-Tesla) magnetic resonance imaging were included in this study. Cortical thickness was measured using a surface-based method. Multiple linear regression analyses were performed to evaluate age-related cortical thinning and related factors. RESULTS Compared to those in their 20 s/30 s, participants in their 40 s showed thinning primarily in the medial and lateral frontal and inferior parietal regions, and cortical thinning occurred across most of the cortices with increasing age. Notably, the precuneus, inferior temporal and lateral occipital regions were relatively spared until later in life. Male and lower education years were associated with greater cortical thinning with distinct regional specificity. CONCLUSION Our findings provide an important clue to understanding the mechanism of age-related cognitive decline and new strategies for preventing the acceleration of pathological brain aging.
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Affiliation(s)
- Jin San Lee
- Department of Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | - Seonwoo Kim
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Heejin Yoo
- Statistics and Data Center, Samsung Medical Center, Seoul, Korea
| | - Seongbeom Park
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Young Kyoung Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Hee Jin Kim
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Ko Woon Kim
- Department of Neurology, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Yeshin Kim
- Department of Neurology, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Korea
| | - Hyemin Jang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea
| | - Key-Chung Park
- Department of Neurology, Kyung Hee University Hospital, Seoul, Korea
| | - Kristine Yaffe
- Departments of Psychiatry, Neurology, Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Jin-Ju Yang
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Jong-Min Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, Korea
| | - Duk L Na
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea
| | - Sang Won Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.,Neuroscience Center, Samsung Medical Center 06351, Seoul, Korea.,Department of Health Sciences and Technology, SAIHST, Sungkyunkwan University, Seoul, Korea.,Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, Korea
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46
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Biochemical deficits and cognitive decline in brain aging: Intervention by dietary supplements. J Chem Neuroanat 2019; 95:70-80. [DOI: 10.1016/j.jchemneu.2018.04.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 02/28/2018] [Accepted: 04/13/2018] [Indexed: 01/23/2023]
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The Lifespan Human Connectome Project in Aging: An overview. Neuroimage 2018; 185:335-348. [PMID: 30332613 DOI: 10.1016/j.neuroimage.2018.10.009] [Citation(s) in RCA: 168] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/21/2018] [Accepted: 10/04/2018] [Indexed: 12/31/2022] Open
Abstract
The original Human Connectome Project yielded a rich data set on structural and functional connectivity in a large sample of healthy young adults using improved methods of data acquisition, analysis, and sharing. More recent efforts are extending this approach to include infants, children, older adults, and brain disorders. This paper introduces and describes the Human Connectome Project in Aging (HCP-A), which is currently recruiting 1200 + healthy adults aged 36 to 100+, with a subset of 600 + participants returning for longitudinal assessment. Four acquisition sites using matched Siemens Prisma 3T MRI scanners with centralized quality control and data analysis are enrolling participants. Data are acquired across multimodal imaging and behavioral domains with a focus on factors known to be altered in advanced aging. MRI acquisitions include structural (whole brain and high resolution hippocampal) plus multiband resting state functional (rfMRI), task fMRI (tfMRI), diffusion MRI (dMRI), and arterial spin labeling (ASL). Behavioral characterization includes cognitive (such as processing speed and episodic memory), psychiatric, metabolic, and socioeconomic measures as well as assessment of systemic health (with a focus on menopause via hormonal assays). This dataset will provide a unique resource for examining how brain organization and connectivity changes across typical aging, and how these differences relate to key characteristics of aging including alterations in hormonal status and declining memory and general cognition. A primary goal of the HCP-A is to make these data freely available to the scientific community, supported by the Connectome Coordination Facility (CCF) platform for data quality assurance, preprocessing and basic analysis, and shared via the NIMH Data Archive (NDA). Here we provide the rationale for our study design and sufficient details of the resource for scientists to plan future analyses of these data. A companion paper describes the related Human Connectome Project in Development (HCP-D, Somerville et al., 2018), and the image acquisition protocol common to both studies (Harms et al., 2018).
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48
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Kim RE, Yun CH, Thomas RJ, Oh JH, Johnson HJ, Kim S, Lee S, Seo HS, Shin C. Lifestyle-dependent brain change: a longitudinal cohort MRI study. Neurobiol Aging 2018; 69:48-57. [PMID: 29852410 DOI: 10.1016/j.neurobiolaging.2018.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/10/2018] [Accepted: 04/27/2018] [Indexed: 01/01/2023]
Abstract
We investigated both independent and interconnected effects of 3 lifestyle factors on brain volume, measuring yearly changes using large-scale longitudinal magnetic resonance imaging, in middle-aged to older adults. We measured brain volumes in a cohort (n = 984, 49-79 years) from the Korean Genome and Epidemiology Study group, using baseline and follow-up estimates after 4 years. In our analysis, the accelerated brain atrophy in normal aging was observed across regions (e.g., brain tissue: -0.098 ± 0.01 mL/y, p < 0.001). An independent lifestyle-specific trend of brain atrophy across time was also evident in men, where smoking (p = 0.012) and physical activity (p = 0.014) showed the strongest association with the atrophy rate. Linear regression analysis of the interconnected effect revealed that brain atrophy is mitigated by intense physical activity in smoking males. Lifestyle factors did not show any significant effect on brain volume in women. These results provide important information regarding lifestyle factors that affect brain aging in mid-to-late adulthood. Our findings may aid in the identification of preventive measures against dementia.
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Affiliation(s)
- Regina Ey Kim
- Institute for Human Genomic Study, College of Medicine, Korea University, Seoul, Republic of Korea; Psychiatry, University of Iowa, Iowa City, IA, USA
| | - Chang-Ho Yun
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Republic of Korea
| | - Robert J Thomas
- Department of Medicine, Division of Pulmonary, Critical Care & Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA; Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, USA
| | - Jang-Hoon Oh
- Institute for Human Genomic Study, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Hans J Johnson
- Electrical and Computer Engineering, University of Iowa, Iowa City, IA, USA
| | - Soriul Kim
- Institute for Human Genomic Study, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Seungku Lee
- Institute for Human Genomic Study, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Hyung Suk Seo
- Department of Radiology, Korea University Ansan Hospital, Ansan-si, Gyeonggi-do, Republic of Korea
| | - Chol Shin
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, Gyeonggi-do, Republic of Korea; Division of Pulmonary Sleep and Critical Care Medicine, Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, Gyeonggi-do, Republic of Korea.
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49
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Khondoker M, Rafnsson SB, Morris S, Orrell M, Steptoe A. Positive and Negative Experiences of Social Support and Risk of Dementia in Later Life: An Investigation Using the English Longitudinal Study of Ageing. J Alzheimers Dis 2018; 58:99-108. [PMID: 28387667 PMCID: PMC5438469 DOI: 10.3233/jad-161160] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Having a network of close relationships may reduce the risk of developing dementia. However, social exchange theory suggests that social interaction entails both rewards and costs. The effects of quality of close social relationships in later life on the risk of developing dementia are not well understood. Objective: To investigate the effects of positive and negative experiences of social support within key relationships (spouse or partner, children, other immediate family, and friends) on the risk of developing dementia in later life. Methods: We analyzed 10-year follow up data (2003/4 to 2012/13) in a cohort of 10,055 dementia free (at baseline) core participants aged 50 years and over from the English Longitudinal Study of Ageing (ELSA). Incidence of dementia was identified from participant or informant reported physician diagnosed dementia or overall score of informant-completed IQCODE questionnaire. Effects of positive and negative experiences of social support measured at baseline on risk of developing dementia were investigated using proportional hazards regression accommodating interval censoring of time-to-dementia. Results: There were 340 (3.4%) incident dementia cases during the follow-up. Positive social support from children significantly reduced the risk of dementia (hazard ratio, HR = 0.83, p = 0.042, 95% CI: 0.69 to 0.99). Negative support from other immediate family (HR = 1.26, p = 0.011, CI: 1.05 to 1.50); combined negative scores from spouse and children (HR = 1.23, p = 0.046, CI: 1.004 to 1.51); spouse, children, and other family (HR = 1.27, p = 0.021, CI = 1.04 to 1.56); other family & friends (HR = 1.25, p = 0.033, CI: 1.02 to 1.55); and the overall negative scores (HR = 1.31, p = 0.019, CI: 1.05 to 1.64) all were significantly associated with increased risk of dementia. Conclusion: Positive social support from children is associated with reduced risk of developing dementia whereas experiences of negative social support from children and other immediate family increase the risk. Further research is needed to better understand the causal mechanisms that drive these associations.
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Affiliation(s)
- Mizanur Khondoker
- Norwich Medical School, University of East Anglia, Norwich, England, UK.,Department of Applied Health Research, University College London, London, UK
| | - Snorri Bjorn Rafnsson
- Department of Epidemiology and Public Health, University College London, London, UK.,Centre for Primary Health and Social Care, London Metropolitan University, London, UK
| | - Stephen Morris
- Department of Applied Health Research, University College London, London, UK
| | - Martin Orrell
- Institute of Mental Health, University of Nottingham, Nottingham, UK
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, London, UK
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50
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Conrin SD, Zhan L, Morrissey ZD, Xing M, Forbes A, Maki P, Milad MR, Ajilore O, Langenecker SA, Leow AD. From Default Mode Network to the Basal Configuration: Sex Differences in the Resting-State Brain Connectivity as a Function of Age and Their Clinical Correlates. Front Psychiatry 2018; 9:365. [PMID: 30150944 PMCID: PMC6100484 DOI: 10.3389/fpsyt.2018.00365] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 07/23/2018] [Indexed: 11/13/2022] Open
Abstract
Connectomics is a framework that models brain structure and function interconnectivity as a network, rather than narrowly focusing on select regions-of-interest. MRI-derived connectomes can be structural, usually based on diffusion-weighted MR imaging, or functional, usually formed by examining fMRI blood-oxygen-level-dependent (BOLD) signal correlations. Recently, we developed a novel method for assessing the hierarchical modularity of functional brain networks-the probability associated community estimation (PACE). PACE uniquely permits a dual formulation, thus yielding equivalent connectome modular structure regardless of whether positive or negative edges are considered. This method was rigorously validated using the 1,000 functional connectomes project data set (F1000, RRID:SCR_005361) (1) and the Human Connectome Project (HCP, RRID:SCR_006942) (2, 3) and we reported novel sex differences in resting-state connectivity not previously reported. (4) This study further examines sex differences in regard to hierarchical modularity as a function of age and clinical correlates, with findings supporting a basal configuration framework as a more nuanced and dynamic way of conceptualizing the resting-state connectome that is modulated by both age and sex. Our results showed that differences in connectivity between men and women in the 22-25 age range were not significantly different. However, these same non-significant differences attained significance in both the 26-30 age group (p = 0.003) and the 31-35 age group (p < 0.001). At the most global level, areas of diverging sex difference include parts of the prefrontal cortex and the temporal lobe, amygdala, hippocampus, inferior parietal lobule, posterior cingulate, and precuneus. Further, we identified statistically different self-reported summary scores of inattention, hyperactivity, and anxiety problems between men and women. These self-reports additionally divergently interact with age and the basal configuration between sexes.
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Affiliation(s)
- Sean D Conrin
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Liang Zhan
- Department of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Engineering and Technology, University of Wisconsin-Stout, Menomonie, WI, United States
| | - Zachery D Morrissey
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Mengqi Xing
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States.,Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States
| | - Angus Forbes
- Department of Computational Media, University of California, Santa Cruz, Santa Cruz, CA, United States
| | - Pauline Maki
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Mohammed R Milad
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Olusola Ajilore
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Scott A Langenecker
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Alex D Leow
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States.,Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States
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