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Dillard CC, Martaindale H, Hunter SD, McAllister MJ. Slow Breathing Reduces Biomarkers of Stress in Response to a Virtual Reality Active Shooter Training Drill. Healthcare (Basel) 2023; 11:2351. [PMID: 37628548 PMCID: PMC10454504 DOI: 10.3390/healthcare11162351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/08/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Tactical occupations regularly encounter life-threatening situations while on duty. Although these occupations are often trained to utilize slow breathing (SB) during intense stress, there is no evidence supporting the effects on markers of stress in response to a virtual reality active shooter training drill (VR-ASD). The purpose of the study was to determine the impact of acute SB on biomarkers of stress in response to a VR-ASD. Seventy-nine (n = 79) subjects performed either slow breathing method 1 (SB1), slow breathing method 2 (SB2), or normal breathing (control) for five minutes, both pre- and post-VR-ASD. Saliva samples were analyzed for stress markers, including α-amylase (sAA) and secretory immunoglobulin-A (SIgA). Both methods of SB resulted in significantly lower sAA concentrations at 5 (p < 0.001) and 30 min post-VR-ASD (SB1: p = 0.008; SB2: p < 0.001) compared to the control. In the control condition, the sAA concentrations were significantly elevated 5 min post-VR-ASD (p < 0.001) but did not change across time in SB1 or SB2 (p > 0.05). Thus, both SB1 and SB2 reduced the sAA response and resulted in lower concentrations post-VR-ASD. This study was pre-registered as a clinical trial ("Impact of Breathing Interventions on Stress Markers"; NCT05825846).
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Affiliation(s)
- Courtney C. Dillard
- Metabolic & Applied Physiology Lab, Texas State University, San Marcos, TX 78666, USA
| | | | - Stacy D. Hunter
- Metabolic & Applied Physiology Lab, Texas State University, San Marcos, TX 78666, USA
| | - Matthew J. McAllister
- Metabolic & Applied Physiology Lab, Texas State University, San Marcos, TX 78666, USA
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Salivary Biomarker Profiles and Chronic Fatigue among Nurses Working Rotation Shifts: An Exploratory Pilot Study. Healthcare (Basel) 2022; 10:healthcare10081416. [PMID: 36011073 PMCID: PMC9407778 DOI: 10.3390/healthcare10081416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022] Open
Abstract
Although nurses’ fatigue affects their well-being and patient safety, no effective objective measurements exist. We explored the profiles of salivary biomarkers associated with nurses’ chronic fatigue across several shifts. This longitudinal study involved 45 shiftwork nurses and collected their saliva samples before two night and two day shifts for a month. Chronic fatigue was measured using the Cumulative Fatigue Symptom Index before the first night shift. Biomarker profiles were analyzed using hierarchical cluster analysis, and chronic fatigue levels were compared between the profiles. Cortisol profiles were classified into high- and low-level groups across two day shifts; the low-level group presented significantly higher irritability and unwillingness to work. Secretory immunoglobulin A (s-IgA) profiles across the four shifts were classified into high- and low-level groups; the high-level group had significantly higher depressive feelings, decreased vitality, irritability, and unwillingness to work. Cortisol (two day shifts) and s-IgA (four shifts) profiles were combined, and (i) cortisol low-level and s-IgA high-level and (ii) cortisol high-level and s-IgA low-level groups were identified. The former group had significantly higher chronic fatigue sign and irritability than the latter group. The profiles of salivary cortisol and s-IgA across several shifts were associated with nurses’ chronic fatigue.
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McAuliffe L, Wright BJ, Hazi A, Kinsella GJ. Social support moderates the effect of stress on the cortisol awakening response in dementia family caregivers. Physiol Behav 2021; 240:113532. [PMID: 34289401 DOI: 10.1016/j.physbeh.2021.113532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 11/16/2022]
Abstract
Dementia caregiving has been associated with a range of adverse effects on the physical health of the caregiver. However, the specific mechanisms underlying the relationship between dementia caregiver stress and ill health remain unclear. The aim of this study was to investigate, using available prospective data, the relationship between perceived stress (burden) and pre-clinical indices of ill-health (cortisol awakening response and secretory immunoglobulin A) amongst dementia caregivers. The potential moderating effect of social support on the perceived stress-physiological stress/health relationship was also explored. Participants (N = 31) were caregivers of community-dwelling older adults living with dementia who were enroled in a psychoeducation support program and provided data (study questionnaire and saliva samples) at two timepoints (T1 and T2), 10 weeks apart. Hierarchical regressions were used to determine if changes in stress and social support predicted change in each of the physiological outcomes. Findings indicate that caregivers with more hours of care at T1, or with greater satisfaction with social support, were more likely to exhibit an adaptive cortisol awakening response at T2. Moreover, social support was found to buffer the effect of caregiver stress and hours of caregiving on the cortisol awakening response. Implications for future interventions targeting caregiver health are discussed.
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Affiliation(s)
- Linda McAuliffe
- Department of Psychology and Counselling, School of Psychology and Public Health, College of Science, Health & Engineering, La Trobe University, Melbourne Campus Victoria 3086 Australia.
| | - Bradley J Wright
- Department of Psychology and Counselling, School of Psychology and Public Health, College of Science, Health & Engineering, La Trobe University, Melbourne Campus Victoria 3086 Australia.
| | - Agnes Hazi
- Department of Psychology and Counselling, School of Psychology and Public Health, College of Science, Health & Engineering, La Trobe University, Melbourne Campus Victoria 3086 Australia.
| | - Glynda J Kinsella
- Department of Psychology and Counselling, School of Psychology and Public Health, College of Science, Health & Engineering, La Trobe University, Melbourne Campus Victoria 3086 Australia.
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Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is likely to exacerbate the symptoms of poor mental health in family caregivers. AIMS To investigate whether rates of depressive symptomatology increased in caregivers during COVID-19 and whether the unintended consequences of health protective measures, i.e., social isolation, exacerbated this risk. Another aim was to see if caregivers accessed any online/phone psychological support during COVID. METHOD Data (1349 caregivers; 6178 non-caregivers) was extracted from Understanding Society, a UK population-level data-set. The General Health Questionnaire cut-off scores identified those who are likely to have depression. RESULTS After adjustment for confounding caregivers had a higher risk of having depressive symptoms compared with non-caregivers, odds ratio (OR) = 1.22 (95% CI 1.05-1.40, P = 0.008) evidenced by higher levels of depression pre-COVID-19 (16.7% caregivers v. 12.1% non-caregivers) and during the COVID-19 pandemic (21.6% caregivers v. 17.9% non-caregivers), respectively. Further, higher levels of loneliness increased the risk of depression symptoms almost four-fold in caregivers, OR = 3.85 (95% 95% CI 3.08-4.85, P < 0.001), whereas accessing therapy attenuated the risk of depression (43%). A total of 60% of caregivers with depression symptoms reported not accessing any therapeutic support (for example online or face to face) during the COVID-19 pandemic. CONCLUSIONS COVID-19 has had a negative impact on family caregivers' mental health with loneliness a significant contributor to depressive symptomatology. However, despite these detriments in mental health, the majority of caregivers do not access any online or phone psychiatric support. Finally, psychiatric services and healthcare professionals should aim to focus on reducing feelings of loneliness to support at-risk caregivers.
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Affiliation(s)
- Stephen Gallagher
- Department of Psychology, Centre for Social Issues Research, Study of Anxiety, Stress and Health Laboratory and Health Research Institute, University of Limerick, Ireland
| | - Mark A Wetherell
- Stress Research Group, Department of Psychology, Northumbria University Newcastle, UK
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Hodges-Simeon CR, Grail GPO, Albert G, Landry N, Ortiz TL, Carré JM, McHale TS, Arnocky SA. Testosterone, cortisol, and secretory immunoglobulin-A within a single day and across two sequential days among trans- and cis-gender men. Steroids 2020; 160:108640. [PMID: 32298661 DOI: 10.1016/j.steroids.2020.108640] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/02/2020] [Accepted: 03/30/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND Previous research on the association between testosterone (T) and immunity has produced conflicting results. OBJECTIVES We address two potential reasons for these empirical inconsistencies in the present research. First, the association between T and immunity may depend on which branch of the immune system is considered. Here, we examine secretory IgA (sIgA), a measure of mucosal immunity functionally related to respiratory infection risk. Second, the association between T and immunity may depend on a third regulatory variable. Therefore, we examine the interaction between T and cortisol (CORT) as well as their independent and combined effects on mucosal immunity. To do this, we explore intra-individual associations between sIgA, CORT, and T within a single day (i.e., morning vs. evening) and across 2 sequential mornings. We target two samples of men: (1) cisgender (i.e., born and identifying as men), and (2) transgender (i.e., born female but identifying as men) undergoing T therapy for gender realignment. MATERIALS AND METHODS One hundred and forty-eight adult men (transgender n = 29) provided saliva samples at three time points: (1) upon waking, (2) before sleep on the same day, and (3) upon waking the following day. Samples were assayed in duplicate for sIgA, T and CORT. RESULTS For cisgender men, sIgA, T, and CORT exhibited clear circadian rhythms and were significantly related within and between samples. For transgender men, evidence for circadian change was found for sIgA and CORT, but not T. Further, sIgA was associated with CORT, but not T. DISCUSSION AND CONCLUSIONS This study provides the first evidence that salivary T and sIgA concentrations are associated within a single day and across sequential days for cisgender men. Differences between cis- and transgender men suggest that this may only be true for T levels driven by endogenous production; however, future studies should employ a larger sample size.
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Affiliation(s)
| | - Graham P O Grail
- Department of Anthropology, Boston University, Boston, MA, United States; Department of Forensic Sciences, George Washington University, Washington, D.C., United States
| | - Graham Albert
- Department of Anthropology, Boston University, Boston, MA, United States
| | - Nicholas Landry
- Department of Psychology, Nipissing University, North Bay, Ontario, Canada
| | - Triana L Ortiz
- Department of Psychology, Nipissing University, North Bay, Ontario, Canada
| | - Justin M Carré
- Department of Psychology, Nipissing University, North Bay, Ontario, Canada
| | - Timothy S McHale
- Department of Anthropology, Boston University, Boston, MA, United States; Department of Anthropology and Museum Studies, Central Washington University, Ellensburg, WA, United States
| | - Steven A Arnocky
- Department of Psychology, Nipissing University, North Bay, Ontario, Canada
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Ulmer-Yaniv A, Djalovski A, Yirmiya K, Halevi G, Zagoory-Sharon O, Feldman R. Maternal immune and affiliative biomarkers and sensitive parenting mediate the effects of chronic early trauma on child anxiety. Psychol Med 2018; 48:1020-1033. [PMID: 28889808 DOI: 10.1017/s0033291717002550] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Chronic early trauma alters children's stress reactivity and increases the prevalence of anxiety disorders; yet the neuroendocrine and immune mechanisms underpinning this effect are not fully clear. Animal studies indicate that the mother's physiology and behavior mediate offspring stress in a system-specific manner, but few studies tested this external-regulatory maternal role in human children exposed to chronic stress. METHODS We followed a unique cohort of children exposed to continuous wartime trauma (N = 177; exposed; N = 101, controls; N = 76). At 10 years, maternal and child's salivary immunoglobulin A (s-IgA) and oxytocin (OT), biomarkers of the immune and affiliation systems, were assayed, maternal and child relational behaviors observed, mother and child underwent psychiatric diagnosis, and child anxiety symptoms assessed. RESULTS War-exposed mothers had higher s-IgA, lower OT, more anxiety symptoms, and their parenting was characterized by reduced sensitivity. Exposed children showed higher s-IgA, more anxiety disorders and post traumatic stress disorder, and more anxiety symptoms. Path analysis model defined three pathways by which maternal physiology and behavior impacted child anxiety; (a) increasing maternal s-IgA, which led to increased child s-IgA, augmenting child anxiety; (b) reducing maternal OT, which linked with diminished child OT and social repertoire; and (c) increasing maternal anxiety, which directly impacted child anxiety. CONCLUSIONS Our findings, the first to measure immune and affiliation biomarkers in mothers and children, detail their unique and joint effects on children's anxiety in response to stress; highlight the relations between chronic stress, immune activation, and anxiety in children; and describe how processes of biobehavioral synchrony shape children's long-term adaptation.
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Affiliation(s)
- A Ulmer-Yaniv
- The Gonda Brain Sciences Center,Bar-Ilan University,Ramat-Gan,Israel
| | - A Djalovski
- Department of Psychology,Bar-Ilan University,Ramat-Gan,Israel
| | - K Yirmiya
- Department of Psychology,Bar-Ilan University,Ramat-Gan,Israel
| | - G Halevi
- Department of Psychology,Bar-Ilan University,Ramat-Gan,Israel
| | - O Zagoory-Sharon
- The Gonda Brain Sciences Center,Bar-Ilan University,Ramat-Gan,Israel
| | - R Feldman
- The Gonda Brain Sciences Center,Bar-Ilan University,Ramat-Gan,Israel
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Abstract
This chapter explores the reasoning behind using the vaccination model to examine the influence of psychosocial factors on immunity. It then briefly discusses the mechanics of the vaccination response and the protocols used in psychoneuroimmunology vaccine research, before giving examples from the research literature of the studies examining relationships such as the association between stress and vaccination response. It also explores the ways the vaccination model can be used to answer key questions in psychoneuroimmunology, such as the following: "Does it matter when stressful life events occur relative to when the vaccine is received?" "What are the effects of prior exposure to the antigen?" "Do other psychosocial factors influence vaccine response besides stress?" Finally, it briefly considers the mechanisms underlying psychosocial factors and vaccination response associations and the future research needed to understand these better, and indeed to use current and future knowledge to improve and enhance vaccine responses in key at-risk populations.
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Affiliation(s)
- Anna C Whittaker
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK.
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Romero-Martínez Á, Moya-Albiol L. Stress-Induced Endocrine and Immune Dysfunctions in Caregivers of People with Eating Disorders. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121560. [PMID: 29236043 PMCID: PMC5750978 DOI: 10.3390/ijerph14121560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 11/20/2017] [Accepted: 12/07/2017] [Indexed: 11/22/2022]
Abstract
Caregivers have to cope repeatedly with acute stressors in their daily lives, and this is associated with disturbances in the hypothalamic–pituitary–adrenal (HPA) axis and the immune system. Such disturbances could contribute to the development of health problems in informal caregivers of people with chronic illnesses, such as eating disorders (EDs). The main objective of this study was to examine endocrine (salivary cortisol levels (Csal)), immune (immunoglobulin-A (IgA)), and psychological (anxiety, mood, and anger feelings) responses to an acute psychological stressor in a sample of informal caregivers of individuals with EDs compared to a sample of non-caregivers. In addition, it also aimed to analyze the potential relationship of the aforementioned endocrine and immune response parameters with psychological variables in the caregivers. Caregivers had lower Csal and IgA levels at all assessment points except baseline. Moreover, they also exhibited lower Csal and IgA responses and greater worsening of mood in response to acute psychosocial stress than the non-caregivers, which suggests that caregivers had dampened endocrine and immune reactivity to acute stress. On the other hand, endocrine and immune parameters were unrelated to psychological variables. These findings advance our understanding of how a chronically stressed population reacts to acute stress, and should be considered for the development of effective interventions focused on stress management that could help caregivers to reduce their stress levels, which, in turn, would improve their health.
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Affiliation(s)
| | - Luis Moya-Albiol
- Psychobiology Department, University of Valencia, 46010 Valencia, Spain.
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Jensen SE. Psychological stress and infectious illnesses: One step closer to understanding the mechanisms. Brain Behav Immun 2016; 52:9-10. [PMID: 26518297 DOI: 10.1016/j.bbi.2015.10.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 10/26/2015] [Indexed: 12/25/2022] Open
Affiliation(s)
- Sally E Jensen
- Department of Medical Social Sciences, Department of Surgery (Organ Transplantation), Northwestern University Feinberg School of Medicine, 633 N. St. Clair, 19th Floor, Chicago, IL 60611, United States.
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10
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Phillips AC, Carroll D, Drayson MT, Der G. Salivary Immunoglobulin A Secretion Rate Is Negatively Associated with Cancer Mortality: The West of Scotland Twenty-07 Study. PLoS One 2015; 10:e0145083. [PMID: 26699127 PMCID: PMC4689578 DOI: 10.1371/journal.pone.0145083] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 11/28/2015] [Indexed: 12/28/2022] Open
Abstract
Immunoglobulins are essential for combating infectious disease although very high levels can indicate underlying pathology. The present study examined associations between secretory immunoglobulin A (sIgA) in saliva and mortality rates in the general population. Participants were 639 adults from the eldest cohort of the West of Scotland Twenty-07 Study aged 63 years at the time of saliva sampling in 1995. From unstimulated 2-minute saliva samples, saliva volume and S-IgA concentration were measured, and S-IgA secretion rate determined as their product. Mortality data were tracked for 19 years. Cox proportional hazard models were applied to compute hazard ratios (HR) for all-cause mortality from sIgA secretion rate. Associations were adjusted for gender, assay batch, household occupational group, smoking, medication usage, and self-reported health. There was a negative association between log sIgA secretion rate and all-cause mortality, HR = 0.81, 95%CI = 0.73–0.91, p < .001. Further analysis of specific causes of mortality revealed that the all-cause association was due to an underlying association with cancer mortality and in particular with cancers other than lung cancer. The HR for non-lung cancer was 0.68 (95%CI = 0.54 to 0.85) implying a 32% reduction in mortality risk per standard deviation rise in log sIgA secretion rate. Effects were stronger for men than women. For deaths from respiratory diseases, sIgA secretion had a non-linear relationship with mortality risk whereby only the very lowest levels of secretion were associated with elevated risk. SIgA concentration revealed a similar but weaker pattern of association. In the present study, higher secretion rates of sIgA were associated with a decreased risk of death from cancer, specifically non-lung cancer, as well as from respiratory disease. Thus, it appears that sIgA plays a protective role among older adults, and could serve as a marker of mortality risk, specifically cancer mortality.
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Affiliation(s)
- Anna C. Phillips
- School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, Birmingham, England
- * E-mail:
| | - Douglas Carroll
- School of Sport, Exercise & Rehabilitation Sciences, University of Birmingham, Birmingham, England
| | - Mark T. Drayson
- Clinical Immunology Service, College of Medicine and Dentistry, University of Birmingham, Birmingham, England
| | - Geoff Der
- MRC/CSO Social and Public Health Sciences Unit, University of Glasgow, Glasgow, Scotland
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Vitlic A, Lord JM, Taylor AE, Arlt W, Bartlett DB, Rossi A, Arora-Duggal N, Welham A, Heald M, Oliver C, Carroll D, Phillips AC. Neutrophil function in young and old caregivers. Br J Health Psychol 2015; 21:173-89. [DOI: 10.1111/bjhp.12156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 07/17/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Ana Vitlic
- School of Sport, Exercise and Rehabilitation Sciences; University of Birmingham; UK
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
| | - Janet M. Lord
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
- School of Immunity and Infection; University of Birmingham; UK
| | - Angela E. Taylor
- Centre for Endocrinology Diabetes and Metabolism (CEDAM); University of Birmingham; UK
| | - Wiebke Arlt
- Centre for Endocrinology Diabetes and Metabolism (CEDAM); University of Birmingham; UK
| | - David B. Bartlett
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
- School of Immunity and Infection; University of Birmingham; UK
| | - Alessandra Rossi
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
- School of Immunity and Infection; University of Birmingham; UK
| | - Niharika Arora-Duggal
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
- School of Immunity and Infection; University of Birmingham; UK
| | - Alice Welham
- School of Psychology; University of Birmingham; UK
| | - Mary Heald
- School of Psychology; University of Birmingham; UK
| | - Chris Oliver
- School of Psychology; University of Birmingham; UK
| | - Douglas Carroll
- School of Sport, Exercise and Rehabilitation Sciences; University of Birmingham; UK
| | - Anna C. Phillips
- School of Sport, Exercise and Rehabilitation Sciences; University of Birmingham; UK
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
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Watanabe K, Shirakawa T. Characteristics of Perceived Stress and Salivary Levels of Secretory Immunoglobulin A and Cortisol in Japanese Women With Premenstrual Syndrome. Nurs Midwifery Stud 2015; 4:e24795. [PMID: 26339665 PMCID: PMC4557405 DOI: 10.17795/nmsjournal24795] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/23/2015] [Accepted: 02/05/2015] [Indexed: 12/27/2022] Open
Abstract
Background: Several studies have demonstrated the associations between Premenstrual Syndrome and perceived stress, and no studies quantifying stress based on biochemical parameters have been conducted. Objectives: The objective of this study was to examine the changes in biochemical parameters of stress and measured perceived stress during the menstrual cycle of women with premenstrual syndrome. Patients and Methods: A longitudinal observational study was conducted in 2010 in the Kansai region of Japan. Thirteen women with premenstrual syndrome and 11 controls, all with regular menstrual cycles, participated in this study. Salivary secretory immunoglobulin A (S-IgA) and cortisol levels were measured as biochemical parameters, and scores on the Stress Check List KM (SCL-KM) (Cronbach’s α in this study ranged from 0.76 to 0.84) were used to indicate perceived stress through two complete menstrual cycles. Before stress measurements were taken, premenstrual, menstrual and postmenstrual phases were confirmed based on records of basal body temperature across two menstrual cycles. Data analysis was performed using the Student’s t-test, analysis of variance with repeated measures, and Pearson’s correlation coefficient, as appropriate. Results: Both the postmenstrual S-IgA concentration and secretion rate were significantly lower in the group with premenstrual syndrome than in controls (P < 0.05). Premenstrual S-IgA concentrations were significantly higher than postmenstrual levels in the group with premenstrual syndrome (P < 0.05). No significant differences in cortisol levels were seen in either group during any phase. Premenstrual and postmenstrual phase SCL-KM scores were significantly higher in the group with premenstrual syndrome than in controls (P < 0.05). No significant changes in the SCL-KM scores were observed among menstrual cycle phases in either group. Postmenstrual S-IgA levels were negatively correlated with the SCL-KM score (P < 0.05). Conclusions: The stress due to psychosomatic changes in the menstrual cycle is associated with premenstrual syndrome. Measures of S-IgA, rather than cortisol or subjective responses to stress, may be most closely associated with PMS.
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Affiliation(s)
- Kaori Watanabe
- School of Human Nursing, University of Shiga Prefecture, Hikone, Shiga, Japan
| | - Taku Shirakawa
- Graduate School of Health Sciences, University of Kobe, Kobe, Hyogo, Japan
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Oikawa J, Ukawa S, Ohira H, Kawamura T, Wakai K, Ando M, Hata A, Tamakoshi A. Diabetes Mellitus is Associated With Low Secretion Rates of Immunoglobulin A in Saliva. J Epidemiol 2015; 25:470-4. [PMID: 26094794 PMCID: PMC4483372 DOI: 10.2188/jea.je20140088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The association between diabetes mellitus (DM) and low secretory immunoglobulin A (s-IgA) secretion rates is one mechanism suspected of influencing susceptibility to infections among DM patients. However, several studies have shown contradictory results. We examined these two factors to seek evidence of an association among older people. METHODS We analyzed a prospective cohort of 2306 subjects (1209 men and 1097 women) around 64 years old from the New Integrated Suburban Seniority Investigation (NISSIN) Project in Nisshin, Japan. DM statuses were ascertained from levels of fasting plasma glucose and HbA1c, and s-IgA secretion rates were obtained from 5-min saliva samples. We used an analysis of covariance adjusted for possible confounders to compare s-IgA secretion rates according to DM status. RESULTS s-IgA secretion rates in DM participants were lower than in those classified as normal (18.6 µg/min vs 15.0 µg/min, P = 0.03), even after elimination of the effects of possible confounders. CONCLUSIONS DM was associated with lower s-IgA secretion rates. This suggests that lower s-IgA levels may be a mechanism of susceptibility to infection in individuals with DM.
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Affiliation(s)
- Junko Oikawa
- Department of Public Health, Hokkaido University Graduate School of Medicine
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14
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Phillips AC, Carroll D, Drayson MT, Batty GD. Raised levels of immunoglobulin G, A and M are associated with an increased risk of total and cause-specific mortality: the Vietnam Experience Study. J Epidemiol Community Health 2015; 69:129-35. [PMID: 25267764 DOI: 10.1136/jech-2014-204345] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Immunoglobulins (Ig) are essential for combating infectious disease. However, high levels are associated with a range of diseases and/or poor health behaviours, such as autoimmune diseases, chronic infection, HIV and excessive alcohol consumption. In the present analyses, we extend this body of work by examining whether higher levels of serum Ig G, A and M are associated with increased mortality risk. METHODS Participants were 4255 Vietnam-era, former US army personnel (the Vietnam Experience Study). From military service files, telephone interviews in 1983 and a medical examination in 1986, sociodemographic, and health data were collected. Contemporary morning fasted blood samples were taken from which IgG, IgA and IgM concentrations were determined. Mortality surveillance over 15 years gave rise to deaths ascribed to all-causes, cardiovascular disease mortality, all cancers combined mortality, external cause and 'other' causes (predominantly comprising deaths due to infectious disease). Cox proportional hazard models were utilised to compute HRs per SD increase in Ig which were first adjusted for age and then additionally adjusting for a range of candidate confounders. RESULTS In multiply adjusted analyses, in general, the higher the immunoglobulin concentration, the greater the risk of death. Thus, IgA (HR=2.0 95% CI 1.47 to 2.73), IgM (HR=1.5 95% CI 1.11 to 1.91) and IgG (HR=5.8 95% CI 3.38 to 9.95) were positively related to all-cause mortality. Corresponding results for 'other' causes of mortality were 4.7 (2.64 to 8.19), 3.5 (2.29 to 5.45) and 33.4 (15.13 to 73.64). CONCLUSIONS In the present study, high levels of Ig are associated with an elevated risk of death from total and 'other' causes, mainly infectious disease. High levels of Ig, particularly IgG, may signal subclinical disease.
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Affiliation(s)
- Anna C Phillips
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Douglas Carroll
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Mark T Drayson
- Department of Clinical Immunology, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - G David Batty
- Department of Epidemiology and Public Health, University College London, UK and Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, London, UK
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15
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Vitlic A, Khanfer R, Lord JM, Carroll D, Phillips AC. Bereavement reduces neutrophil oxidative burst only in older adults: role of the HPA axis and immunesenescence. IMMUNITY & AGEING 2014; 11:13. [PMID: 25191511 PMCID: PMC4154898 DOI: 10.1186/1742-4933-11-13] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/22/2014] [Indexed: 11/24/2022]
Abstract
Background The effect of the chronic stress of bereavement on immunity is poorly understood. Previous studies have demonstrated negative effects on immunity in older adults, and those who report higher depressive symptoms. The aim of the present study was to compare the effect of bereavement on neutrophil function in healthy young and old adults, also assessing serum levels of the stress hormones, cortisol and dehydroepiandrosterone sulphate (DHEAS). 41 young (mean age 32 years) and 52 older adults (mean age 72 years), bereaved and non-bereaved, took part in the study. They completed questionnaires on socio-demographic and health behaviour characteristics, as well as psychosocial variables, and provided a blood sample for analysis of neutrophil function (phagocytosis and reactive oxygen species (ROS) production) and stress hormone analysis. Results Bereaved participants in both age groups reported more symptoms of depression and anxiety than controls and scored moderately highly on bereavement-specific questionnaires for these symptoms. Despite this, young bereaved participants showed robust neutrophil function when compared to age-matched non-bereaved controls, and comparable stress hormone levels, while reduced neutrophil ROS production and raised stress hormone levels (cortisol:DHEAS ratio) were seen in the older bereaved group compared to their age-matched controls. Conclusions Reduced neutrophil function among older bereaved participants may be the result of the inability to maintain stress hormone balance, specifically the cortisol:DHEAS ratio.
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Affiliation(s)
- Ana Vitlic
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK ; MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| | - Riyad Khanfer
- City Hospital Eye Accident and Emergency Department, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, UK
| | - Janet M Lord
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK ; School of Immunity and Infection, University of Birmingham, Birmingham, UK
| | - Douglas Carroll
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK
| | - Anna C Phillips
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK ; MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
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16
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Kim SS, Oh KM, Richards K. Sleep disturbance, nocturnal agitation behaviors, and medical comorbidity in older adults with dementia: relationship to reported caregiver burden. Res Gerontol Nurs 2014; 7:206-14. [PMID: 24877599 DOI: 10.3928/19404921-20140512-01] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 05/05/2014] [Indexed: 11/20/2022]
Abstract
The purpose of this secondary analysis study was to determine whether care recipients' nighttime sleep patterns, medical comorbidity, observed nocturnal agitation behaviors, and caregivers' perceptions of nocturnal agitation behaviors in care recipients with dementia are associated with caregiver burden. Sixty care recipient-caregiver dyads, comprising older adults with geriatrician-diagnosed dementia living at home with caregivers, participated. Caregivers' perceptions of the frequency of care recipients' nocturnal agitation behaviors were associated with caregiver burden; however, objective, real-time data on the frequency of nocturnal agitation behaviors were not associated with burden. Care recipients' increased minutes of wakefulness before falling asleep and severe cognitive impairment with musculoskeletal/integument and neurological comorbidities were associated with higher caregiver burden. These results suggest that targeted interventions to reduce sleep onset latency, medical comorbidity, and caregivers' perception of frequency of nocturnal behaviors may reduce caregiver burden.
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17
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Vitlic A, Phillips AC, Gallagher S, Oliver C, Lord JM, Moss P. Anticytomegalovirus antibody titres are not associated with caregiving burden in younger caregivers. Br J Health Psychol 2014; 20:68-84. [DOI: 10.1111/bjhp.12092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/02/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Ana Vitlic
- School of Sport and Exercise Sciences; University of Birmingham; UK
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
| | - Anna C. Phillips
- School of Sport and Exercise Sciences; University of Birmingham; UK
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
| | | | - Chris Oliver
- School of Psychology; University of Birmingham; UK
| | - Janet M. Lord
- MRC-Arthritis Research UK Centre for Musculoskeletal Ageing Research; University of Birmingham; UK
- School of Immunity and Infection; University of Birmingham; UK
| | - Paul Moss
- School of Cancer Sciences; University of Birmingham; UK
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18
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Hamuro K, Kotani Y, Toba M, Kakumoto K, Kohda N. Comparison of salivary IgA secretion rate collected by the aspiration method and swab method. BIOSCIENCE OF MICROBIOTA FOOD AND HEALTH 2013; 32:107-12. [PMID: 24936369 PMCID: PMC4034363 DOI: 10.12938/bmfh.32.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 01/23/2013] [Indexed: 11/21/2022]
Abstract
Salivary immunoglobulin A (IgA) is used as an immunity marker, as saliva can be easily
collected, noninvasively with little stress. However, several saliva collection methods
can be used. Our comparison between samples collected using different methods demonstrated
that the salivary IgA secretion rate in samples collected using an aspiration method was
significantly correlated with that in samples collected using a swab method. Moreover, the
significant circadian variation in salivary IgA secretion rate in the aspirated saliva
suggested that the aspiration method does not suppress salivary IgA secretion rate
variability compared with the swab method. Therefore, the aspiration method should be
considered as the preferable saliva collection method.
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Affiliation(s)
- Koji Hamuro
- Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan ; Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan
| | - Yoshifumi Kotani
- Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan ; Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan
| | - Masamichi Toba
- Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan
| | - Keiji Kakumoto
- Information Management Office, Drug Safety Research Center, Tokushima Research Institute, Otsuka Pharmaceutical Co., Ltd., 463-10 Kagasuno, Kawauchi-cho, Tokushima 771-0192, Japan
| | - Noriyuki Kohda
- Otsu Nutraceuticals Research Institute, Otsuka Pharmaceutical Co., Ltd., 3-31-13 Saigawa Otsu, Shiga 520-0002, Japan
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19
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Psychoneuroendocrine interventions aimed at attenuating immunosenescence: a review. Biogerontology 2013; 14:9-20. [DOI: 10.1007/s10522-012-9412-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 12/20/2012] [Indexed: 12/18/2022]
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20
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Trueba AF, Rosenfield D, Oberdörster E, Vogel PD, Ritz T. The effect of academic exam stress on mucosal and cellular airway immune markers among healthy and allergic individuals. Psychophysiology 2012; 50:5-14. [PMID: 23157618 DOI: 10.1111/j.1469-8986.2012.01487.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Accepted: 09/20/2012] [Indexed: 12/24/2022]
Abstract
Research suggests that psychological stress can exacerbate allergies, but relatively little is known about the effect of stress on mucosal immune processes central to allergic pathophysiology. In this study, we quantified vascular endothelial growth factor (VEGF), interferon gamma (IFN-γ), and interleukin-4 concentrations in saliva (S) and exhaled breath condensate (EBC) during final exams and at midsemester among 23 healthy and 21 allergic rhinitis individuals. IFN-γs decreased during exams for both groups while VEGF(EBC) increased (and increases in VEGFs were a trend). Elevated negative affect ratings predicted higher VEGF(EBC) in allergic individuals. IFN-γ(EBC) increased in healthy individuals early during exams and then decreased, while allergic individuals showed a decrease in IFN-γ(EBC) throughout final exams. These findings suggest that psychological stress can suppress cellular immune function among allergic individuals while increasing VEGF.
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Affiliation(s)
- Ana F Trueba
- Department of Psychology, Southern Methodist University, Dallas, Texas 75206, USA.
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21
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De Andrés-García S, Moya-Albiol L, González-Bono E. Salivary cortisol and immunoglobulin A: responses to stress as predictors of health complaints reported by caregivers of offspring with autistic spectrum disorder. Horm Behav 2012; 62:464-74. [PMID: 22981424 DOI: 10.1016/j.yhbeh.2012.08.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 08/03/2012] [Accepted: 08/04/2012] [Indexed: 11/29/2022]
Abstract
In the caregiving model of chronic stress, few studies have been conducted with young middle-aged samples and no data exists about acute stress response in this population. To extend knowledge in this issue, health complaints and psychological, endocrine, and immunological responses to stress have been assessed in a cross-sectional sample of 41 parents of offspring with autistic spectrum disorder (ASD) in comparison with 37 non-caregiver parents. Salivary cortisol and immunoglobulin A (IgA) levels were measured before, during, and after a mental psychosocial stressor, while mood and state anxiety were evaluated before and after the stress. Health complaints, personality traits, socio-economic status, and characteristics of the care recipient were assessed. Caregivers reported more health complaints showing buffered cortisol and IgA responses and greater increases in fatigue to acute stress than the controls. In terms of predictive power of health complaints, IgA levels, care status, and severity of the care recipient are especially relevant for caregivers. Results strongly suggest a dysregulation in the immune and hormonal stress-induced responses in middle-aged caregivers, with immune component and care characteristics as the main modulators of health complaints. A deficit in the adaptive capability of stress response is plausible in this population, emphasizing the need to consider family approaches when planning protocols for assistance to ASD patients.
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Affiliation(s)
- S De Andrés-García
- Department of Psychobiology, Psychology Center, Universitat de València, Avda, Blasco Ibañez 21, 46010 Valencia, Spain
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Soeda R, Tasaka A, Sakurai K. Influence of chewing force on salivary stress markers as indicator of mental stress. J Oral Rehabil 2011; 39:261-9. [PMID: 22040229 DOI: 10.1111/j.1365-2842.2011.02264.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of this study was to investigate the influence of chewing force on salivary stress markers (alpha-amylase activity, salivary cortisol level and secretory immunoglobulin A secretion rate) as indicators of mental stress. Participants comprised 20 healthy men. The first set of saliva specimens (S1) was collected at immediately after a 20-min rest to evaluate stress markers. As stress loading, the participants were required to perform arithmetic calculations for 20 min, after which the second set of saliva specimens (S2) was collected. Each participant was then required to chew a piece of tasteless gum for 10 min, after which the third set of saliva specimens (S3) was collected. After a 20-min rest, the fourth set of saliva specimens (S4) was collected. Weak, habitual and strong chewing forces were assigned. Change rates of stress markers between S2 and S3, and S2 and S4 were calculated. A significant difference was observed in the change rate of cortisol levels between S2 and S3. Cortisol level decreased more under strong chewing than under weak chewing. No significant differences were observed in the change rate of amylase activity or s-IgA secretion rate among the three chewing forces. The results suggest that differences in chewing force influence the salivary cortisol level of the three stress markers, and that a strong chewing force induces a greater reduction in mental stress than a weak one.
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Affiliation(s)
- R Soeda
- Department of Removable Prosthodontics and Gerodontology, Tokyo Dental College, Chiba, Japan.
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24
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The cost of caregiving: Endocrine and immune implications in elderly and non elderly caregivers. Neurosci Biobehav Rev 2011; 35:1342-52. [DOI: 10.1016/j.neubiorev.2011.02.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 01/10/2011] [Accepted: 02/10/2011] [Indexed: 11/23/2022]
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25
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Fan Y, Tang YY, Ma Y, Posner MI. Mucosal Immunity Modulated by Integrative Meditation in a Dose-Dependent Fashion. J Altern Complement Med 2010; 16:151-5. [DOI: 10.1089/acm.2009.0234] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yaxin Fan
- Institute of Neuroinformatics and Laboratory for Body and Mind, Dalian University of Technology, Dalian, China
| | - Yi-Yuan Tang
- Institute of Neuroinformatics and Laboratory for Body and Mind, Dalian University of Technology, Dalian, China
- Department of Psychology, University of Oregon, Eugene, OR
| | - Yinghua Ma
- Institute of Neuroinformatics and Laboratory for Body and Mind, Dalian University of Technology, Dalian, China
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Phillips AC, Gallagher S, Hunt K, Der G, Carroll D. Symptoms of depression in non-routine caregivers: the role of caregiver strain and burden. BRITISH JOURNAL OF CLINICAL PSYCHOLOGY 2009; 48:335-46. [PMID: 19159507 DOI: 10.1348/014466508x397142] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVES The origins and persistence of psychological morbidity in caregivers are not fully understood. The present analysis examined the relationship between the strain and burden of caregiving and depression and anxiety in a large community sample. Social support and sleep quality were investigated as potential mediators. DESIGN Cross-sectional and prospective observational study. METHOD Individuals caring for someone other than their own child (N=393) were identified from a population of 2,079. Caregiving strain and burden, social support, and sleep quality were assessed. Participants completed the hospital anxiety and depression scale at the same time and 5 years later. RESULTS Caregiving strain and burden were associated with depression and anxiety symptoms cross-sectionally, and with a worsening of symptoms 5 years later. Sleep quality appeared to mediate the cross-sectional relationships. CONCLUSIONS The demands of caregiving and associated sleep disruption contribute to symptoms of depression and anxiety in caregivers.
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Affiliation(s)
- Anna C Phillips
- School of Sport and Exercise Sciences, University of Birmingham, Birmingham, UK.
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27
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Van Anders SM. Gonadal steroids and salivary IgA in healthy young women and men. Am J Hum Biol 2009; 22:348-52. [DOI: 10.1002/ajhb.20997] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Parental caregivers of children with developmental disabilities mount a poor antibody response to pneumococcal vaccination. Brain Behav Immun 2009; 23:338-46. [PMID: 18595654 DOI: 10.1016/j.bbi.2008.05.006] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2008] [Revised: 05/20/2008] [Accepted: 05/20/2008] [Indexed: 01/01/2023] Open
Abstract
In older populations, caregiving for a spouse with dementia has been associated with a poor antibody response to vaccination. The present study examined whether younger caregivers, specifically the parents of children with developmental disabilities, would also show a diminished antibody response to vaccination. At baseline assessment, 30 parents of children with developmental disabilities and 29 parents of typically developing children completed standard measures of depression, perceived stress, social support, caregiver burden, and child problem behaviours. They also provided a blood sample and were then vaccinated with a pneumococcal polysaccharide vaccine. Further blood samples were taken at 1- and 6-month follow-ups. Caregivers mounted a poorer antibody response to vaccination than control parents at both follow-ups. This effect withstood adjustment for a number of possible confounders and appeared to be, at least in part, mediated by child problem behaviours. The negative impact of caregiving on antibody response to vaccination is not restricted to older spousal caregivers, but is also evident in younger parents caring for children with developmental disabilities. The behavioural characteristics of the care recipients may be a key consideration in whether or not immunity is compromised in this context.
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29
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Generalizability of Repetitive Thought: Examining Stability in Thought Content and Process. COGNITIVE THERAPY AND RESEARCH 2009. [DOI: 10.1007/s10608-009-9232-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Bailey MT. The Effects of Psychological Stressors on the Intestinal Microbiota. Biosci Microflora 2009. [DOI: 10.12938/bifidus.28.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Michael T. Bailey
- Division of Oral Biology, College of Dentistry, The Ohio State University
- The Institute for Behavioral Medicine Research, College of Medicine, The Ohio State University
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