Background: Personalized approaches to behavior change to improve mental and physical health outcomes are needed. Reducing the intensity, duration, and frequency of stress responses is a mechanism for interventions to improve health behaviors. We developed an ambulatory, dynamic stress measurement approach that can identify personalized stress responses in the moments and contexts in which they occur; we propose that intervening in these stress responses as they arise (ie, just in time; JIT) will result in positive impacts on health behaviors.
View Article and Find Full Text PDFCD4+ T cells are considered the main orchestrators of autoimmune diseases. Their disruptive effect on CD4+ T cell differentiation and the imbalance between T helper cell populations can be most accurately determined using experimental autoimmune encephalomyelitis (EAE) as an animal model of multiple sclerosis (MS). One epigenetic factor known to promote autoimmune inflammation is miRNA-155 (miR-155), which is significantly upregulated in inflammatory T cells.
View Article and Find Full Text PDFFew studies have investigated the associations between community crime rates and affective well-being, and how that relationship may differ according to gender. Using data from the National Study of Daily Experiences and the Uniform Crime Reporting Program, the current study examined gender differences between daily affective experiences, crime rates, and perceptions of neighborhood safety. Although feeling unsafe in one's neighborhood was related to worse affective well-being (i.
View Article and Find Full Text PDFIntense exercise leads to neutrophil extracellular traps (NETs) formation, which triggers cell disintegration. NET, as well as other processes of apoptosis, necrosis, and spontaneous secretion, result in increased levels of cell-free DNA (cf-DNA) in the circulation. An increment of cf-DNA is also observed in autoimmune diseases, such as type 1 diabetes mellitus (T1DM).
View Article and Find Full Text PDFObjectives: Daily noteworthy events have implications for physical and mental health, but less is known about the role daily events have for self-reported cognition and whether the involvement of close social partners differentiates these associations. The current study examined how daily positive and negative noteworthy events relate to subjective memory and attentional difficulties and whether close social partners moderated associations.
Method: We used data from a 100-day microlongitudinal web-based study of 104 older adults (N=7,051; =63.
Glioblastoma, a highly aggressive brain tumor, poses significant treatment challenges. A deeper investigation into its molecular complexity is essential for the identification of novel prognostic biomarkers and therapeutic strategies, potentially improving patient outcomes in terms of survival and quality of life. While nuclear DNA mutations have been extensively studied, the role of mitochondrial DNA (mtDNA) mutations, specifically in the D-loop region, remains poorly understood.
View Article and Find Full Text PDFOver the past decade, considerable progress has been made in the control, elimination, and eradication of neglected tropical diseases (NTDs). Despite these advances, most NTD programs have recently experienced important setbacks; for example, NTD interventions were some of the most frequently and severely impacted by service disruptions due to the coronavirus disease 2019 (COVID-19) pandemic. Mathematical modeling can help inform selection of interventions to meet the targets set out in the NTD road map 2021-2030, and such studies should prioritize questions that are relevant for decision-makers, especially those designing, implementing, and evaluating national and subnational programs.
View Article and Find Full Text PDFExhaustive run induced a biphasic oxidative response of circulating phagocytes in 16 amateur sportsmen. The first phase involved an increment just after exercise of enhanced whole blood chemiluminescence normalized per phagocyte count, whereas in the second phase a decrement from 1 h post-exercise and ongoing till 24 h. We tested whether plasma Interleukin IL-4, IL-8, IL-10 and Tumor Necrosis Factor α concentrations change in response to exhaustive run and whether there are associations between their levels and delta resting.
View Article and Find Full Text PDFJ Gerontol B Psychol Sci Soc Sci
November 2023
Objectives: Caregiving dynamics may shape caregivers' views on their own aging in ways that affect their (de)motivation to improve their current and future health and well-being. In this study, we investigated within-person associations of daily positive and negative caregiving appraisals, future self-views (physical functioning, cognitive, and overall health domains), and physical activity goal pursuit among adult-daughter dementia caregivers.
Methods: Data came from 33 middle-aged caregivers (M = 55.
Exercise may increase the antioxidant capacity of plasma by stimulating antioxidant enzymes. The study aimed to measure the effect of three repetitions of acute exercise on arylesterase (ARE) activity of the paraoxonase 1 (PON1) enzyme. Eleven average-trained men (age 34.
View Article and Find Full Text PDFThe goal of this study was to examine whether family involvement and gender moderated daily changes in affect associated with interpersonal stressors. Adults ( = 2022; = 56.25, Median = 56, = 12.
View Article and Find Full Text PDFThe current study examines daily stress processes as risk factors for comprised mental health in midlife and later life, specifically for gender differences in depression risk. Using data from the Midlife in the United States (MIDUS) study and the National Study of Daily Experiences (NSDE), we examine (1) gender differences in depression; (2) the prospective effects of differential exposure and affective responses on 10-year depression status; (3) gender differences in daily stress-depression links. Furthermore, we explore whether the protective factor of help-seeking behavior moderates the effects of daily stress on depression.
View Article and Find Full Text PDFRepeated assessments in everyday life enables collecting ecologically valid data on dynamic, within-persons processes. These methods have widespread utility and application and have been extensively used for the study of stressors and stress responses. Enhanced conceptual sophistication of characterizing intraindividual stress responses in everyday life would help advance the field.
View Article and Find Full Text PDFObjectives: We analyzed whether marital status and experiences of marital loss or gain were associated with self-perceptions of aging (SPA), a major psychosocial mechanism of healthy aging.
Method: We used data from 7028 participants of the Health and Retirement Study. Participants reported their marital status and their positive and negative SPA on two occasions 4 years apart.
WHO has declared COVID-19 as a worldwide, public health emergency. The elderly, pregnant women, and people with associated co-morbidities, including pulmonary disease, heart failure, diabetes, and cancer are the most predisposed population groups to infection. Cell-free DNA is a very commonly applied marker, which is elevated in various pathological conditions.
View Article and Find Full Text PDFStrenuous exercise alters the oxidative response of blood phagocytes to various agonists. However, little is known about spontaneous post exercise oxidant production by these cells. In this cross-over trial, we tested whether an exhaustive treadmill run at a speed corresponding to 70% of VO2max affects spontaneous and fMLP-provoked oxidant production by phagocytes in 18 amateur sportsmen.
View Article and Find Full Text PDFObjectives: Oxidative stress, induced by physical activity, may stimulate the expression, release, and activity of certain antioxidant enzymes. We investigated the effect of three repeated bouts of strenuous exercise on paraoxonase 1 concentration (PON1c) and paraoxonase activity (PON).
Methods: Eleven average-trained healthy men (age 34.
The current study examinedage differences in allostatic load among nonveterans, noncombat veterans, and combat veterans. Participants included 280 individuals from the Midlife Development in the United States (MIDUS) survey, including 164 veterans (n = 48 combat veterans; n = 116 noncombat veterans) and 116 nonveterans. Age differences in allostatic load were similar among nonveterans and noncombat veterans, B = 0.
View Article and Find Full Text PDFWe aimed to summarize the current knowledge about the trends in cfDNA application based on the analysis of clinical trials registered until April 2021. International Clinical Trials Registry Platform (ICTRP) and Clinicaltrials.gov were searched with the keywords: "cf-DNA"; "Circulating DNA"; "Deoxyribonucleic Acid"; and "Cell-Free Deoxyribonucleic Acid".
View Article and Find Full Text PDFWidowhood and adverse childhood socioeconomic circumstances (CSC) have both been linked to increased levels of depressive symptoms in old age. Beyond their independent impact on depressive symptoms, experiencing adverse CSC may also trigger a cascade of cumulative adversity and secondary stressors across the life course that shapes how individuals weather stressful life events later on. We examine whether exposure to adverse CSC moderates the relationship between later-life widowhood and depressive symptoms using data from the Survey of Health, Ageing and Retirement in Europe (2004-2017).
View Article and Find Full Text PDFBackground: the interrelatedness between social determinants of health impedes researchers to identify important social factors for health investment. A new approach is needed to quantify the aggregate effect of social factors and develop person- centred social interventions.
Methods: participants ([n = 7,383], 54.
Numerous studies have shown that cf nDNA significantly rises in stress caused by exercise. However, during nuclear decondensation, released DNA is followed by histones. Histones are also a common disease marker.
View Article and Find Full Text PDFNegative affect (NA) and positive affect (PA) are established modifiable psychosocial correlates of cognitive health and have demonstrated capacity for meaningful within-person fluctuations based on person-environment interactions, age, and measurement approach. Previous research has shown NA is associated with increased response time inconsistency (RTI), an early performance-based indicator of cognitive health and aging. It is unclear, however, whether PA is associated with RTI, and whether affect-RTI associations exist within persons over time or change as individuals get older.
View Article and Find Full Text PDFIt is believed that neutrophils extracellular traps (NETs) formation is responsible for the increase in cf DNA after exercise. Since T1DM is accompanied by enhanced NETs generation, we compared exercise-induced increase in cf DNA in 14 men with T1DM and 11 healthy controls and analyzed its association with exercise load. Subjects performed a treadmill run to exhaustion at speed corresponding to 70% of their personal VO2max.
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