The Effects of Psychosocial Stress on Memory and Cognitive Ability: A Meta-Analysis

AbstractThe impact of stress on cognitive abilities, such as memory, is well documented in animal studies but it is not yet clear how stress in human social interactions affects memory. This review systematically explored the evidence regarding the effects of psychosocial stress on memory and associated cognitive abilities. PubMed, PsycInfo and Web of Science databases were searched for studies assessing the effects of psychosocial stress on long-term memory or related cognitive functions. Fifty-one studies were identified and compared based on the timing of stress induction. No overall effect of psychosocial stress induction was seen on long-term or working memory regardless of whether stress induction occurred following encoding or before retrieval. Psychosocial stress had a moderate effect in studies comparing memory for emotional compared to neutral stimuli, but the direction of this effect varied across studies. Psychosocial stress decreased performance on executive function tasks. Our findings demonstrate that psychosocial stress may not have the clear effects on memory previously ascribed to it, suggesting potentially different mechanisms from physiological stressors.

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The Impact of Segmentectomy Versus Lobectomy on Pulmonary Function in Patients With Non-small-cell Lung Cancer: a Meta-analysis

10.21203/rs.3.rs-1048811/v1 ◽

2021 ◽

Author(s):

Yuan Xu ◽

Yingzhi Qin ◽

Dongjie Ma ◽

Hongsheng Liu

Keyword(s):

Pulmonary Function ◽

Web Of Science ◽

Meta Analysis ◽

Postoperative Changes ◽

Newcastle Ottawa Scale ◽

Stage Ia ◽

Nsclc Patients ◽

The Impact ◽

Ottawa Scale

Abstract Objective: Segmentectomy has been reported as an alternative to lobectomy for small-sized NSCLC without detriment to survival. The long-term benefits of segmentectomy over lobectomy on pulmonary function have not been firmly established. This meta-analysis aims to compare postoperative changes in pulmonary function in NSCLC patients undergoing segmentectomy or lobectomy.Methods: Medline, Embase, Web of Science and Scopus were searched through March 2021. Statistical comparisons were made when appropriate.Results: Fourteen studies (2412 participants) out of 324 citations were included in this study. All selected studies were high quality, as indicated by the Newcastle–Ottawa scale for assessing the risk of bias. Clinical outcomes were compared between segmentectomy and lobectomy. ΔFEV1 [10 studies, P<0.01, WMD = 0.40 (0.29, 0.51)], ΔFVC [4 studies, P<0.01, WMD = 0.16 (0.07, 0.24)], ΔFVC% [4 studies, P<0.01, WMD = 4.05 (2.32, 5.79)], ΔFEV1/FVC [2 studies, P<0.01, WMD = 1.99 (0.90, 3.08)], and ΔDLCO [3 studies, P<0.01, WMD = 1.30 (0.69, 1.90)] were significantly lower in the segmentectomy group than in the lobectomy group. Subgroup analysis showed that in stage IA patients, the ΔFEV1% [3 studies, P<0.01, WMD = 0.26 (0.07, 0.46)] was significantly lower in the segmentectomy group. The ΔDLCO% and ΔMVV% were incomparable.Conclusion: Segmentectomy preserves more lung function than lobectomy. There were significantly smaller decreases in FEV1, FVC, FVC%, FEV1/FVC and DLCO in the segmentectomy group than in the lobectomy group.

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Long-Term and Short-Term Prognostic Value of Circulating Soluble Suppression of Tumorigenicity-2 Concentration in Chronic Heart Failure: A Systematic Review and Meta-Analysis

Cardiology ◽

10.1159/000509660 ◽

2021 ◽

pp. 1-8

Author(s):

Guoqi Dong ◽

Hao Chen ◽

Hongru Zhang ◽

Yihuang Gu

Keyword(s):

Heart Failure ◽

Chronic Heart Failure ◽

Prognostic Value ◽

Web Of Science ◽

Meta Analysis ◽

Short Term ◽

Prisma Statement ◽

All Cause Mortality ◽

Increasing Risk

Introduction: Soluble suppression of tumorigenicity-2 (sST2) has been considered as a prognostic factor of cardiovascular disease. However, the prognostic value of sST2 concentration in chronic heart failure remains to be summarized. Methods: We searched PubMed, Embase, and Web of Science for eligible studies up to January 1, 2020. Data extracted from articles and provided by authors were used in agreement with the PRISMA statement. The endpoints were all-cause mortality (ACM), cardiovascular mortality (CVM)/heart failure-related hospitalization (HFH), and all-cause mortality (ACM)/heart failure-related readmission (HFR). Results: A total of 11 studies with 5,121 participants were included in this analysis. Higher concentration of sST2 predicted the incidence of long-term ACM (hazard ratio [HR]: 1.03, 95% confidence interval [CI]: 1.02–1.04), long-term ACM/HFR (HR: 1.42, CI: 1.27–1.59), and long-term CVM/HFH (HR: 2.25, CI: 1.82–2.79), regardless of short-term ACM/HFR (HR: 2.31, CI: 0.71–7.49). Conclusion: Higher sST2 concentration at baseline is associated with increasing risk of long-term ACM, ACM/HFR, and CVM/HFH and can be a tool for the prognosis of chronic heart failure.

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Efficacy of Surgery for the Treatment of Gastric Cancer Liver Metastases: A Systematic Review of the Literature and Meta-Analysis of Prognostic Factors

Journal of Clinical Medicine ◽

10.3390/jcm10051141 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1141

Author(s):

Gianpaolo Marte ◽

Andrea Tufo ◽

Francesca Steccanella ◽

Ester Marra ◽

Piera Federico ◽

...

Keyword(s):

Gastric Cancer ◽

Systematic Review ◽

Prognostic Factors ◽

Liver Metastases ◽

Meta Analysis ◽

Multidisciplinary Treatment ◽

Review Of The Literature ◽

Term Survival ◽

The Impact

Background: In the last 10 years, the management of patients with gastric cancer liver metastases (GCLM) has changed from chemotherapy alone, towards a multidisciplinary treatment with liver surgery playing a leading role. The aim of this systematic review and meta-analysis is to assess the efficacy of hepatectomy for GCLM and to analyze the impact of related prognostic factors on long-term outcomes. Methods: The databases PubMed (Medline), EMBASE, and Google Scholar were searched for relevant articles from January 2010 to September 2020. We included prospective and retrospective studies that reported the outcomes after hepatectomy for GCLM. A systematic review of the literature and meta-analysis of prognostic factors was performed. Results: We included 40 studies, including 1573 participants who underwent hepatic resection for GCLM. Post-operative morbidity and 30-day mortality rates were 24.7% and 1.6%, respectively. One-year, 3-years, and 5-years overall survival (OS) were 72%, 37%, and 26%, respectively. The 1-year, 3-years, and 5-years disease-free survival (DFS) were 44%, 24%, and 22%, respectively. Well-moderately differentiated tumors, pT1–2 and pN0–1 adenocarcinoma, R0 resection, the presence of solitary metastasis, unilobar metastases, metachronous metastasis, and chemotherapy were all strongly positively associated to better OS and DFS. Conclusion: In the present study, we demonstrated that hepatectomy for GCLM is feasible and provides benefits in terms of long-term survival. Identification of patient subgroups that could benefit from surgical treatment is mandatory in a multidisciplinary setting.

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Alteration of Genomic Imprinting after Assisted Reproductive Technologies and Long-Term Health

Life ◽

10.3390/life11080728 ◽

2021 ◽

Vol 11 (8) ◽

pp. 728

Author(s):

Eguzkine Ochoa

Keyword(s):

Embryonic Development ◽

Experimental Evidence ◽

Genomic Imprinting ◽

Animal Studies ◽

Assisted Reproductive Technologies ◽

Reproductive Technologies ◽

Early Embryonic Development ◽

Global Methylation ◽

The Impact

Assisted reproductive technologies (ART) are the treatment of choice for some infertile couples and even though these procedures are generally considered safe, children conceived by ART have shown higher reported risks of some perinatal and postnatal complications such as low birth weight, preterm birth, and childhood cancer. In addition, the frequency of some congenital imprinting disorders, like Beckwith–Wiedemann Syndrome and Silver–Russell Syndrome, is higher than expected in the general population after ART. Experimental evidence from animal studies suggests that ART can induce stress in the embryo and influence gene expression and DNA methylation. Human epigenome studies have generally revealed an enrichment of alterations in imprinted regions in children conceived by ART, but no global methylation alterations. ART procedures occur simultaneously with the establishment and maintenance of imprinting during embryonic development, so this may underlie the apparent sensitivity of imprinted regions to ART. The impact in adulthood of imprinting alterations that occurred during early embryonic development is still unclear, but some experimental evidence in mice showed higher risk to obesity and cardiovascular disease after the restriction of some imprinted genes in early embryonic development. This supports the hypothesis that imprinting alterations in early development might induce epigenetic programming of metabolism and affect long-term health. Given the growing use of ART, it is important to determine the impact of ART in genomic imprinting and long-term health.

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The impact of myosteatosis on outcomes following surgery for gastro-intestinal malignancy: A systematic review and meta-analysis.

Journal of Clinical Oncology ◽

10.1200/jco.2021.39.15_suppl.e15540 ◽

2021 ◽

Vol 39 (15_suppl) ◽

pp. e15540-e15540

Author(s):

Andrew MacCormick ◽

Mark Puckett ◽

Adam Streeter ◽

Somaiah Aroori

Keyword(s):

Systematic Review ◽

Meta Analysis ◽

Group Analysis ◽

Long Term Outcomes ◽

Cancer Specific Survival ◽

Mesh Terms ◽

Similar Term ◽

Colorectal Cancer Patients ◽

The Impact

e15540 Background: Recent research has demonstrated the impact that body composition parameters can have on the outcomes following cancer surgery. Adipose tissue deposition in muscle, known as myosteatosis, can be detected on pre-operative imaging. This systematic review aims to analyse the impact of pre-operative myosteatosis on long-term outcomes following surgery for gastro-intestinal malignancy. Methods: Using MeSH terms, a systematic search of the databases PubMed MEDLINE, EMBASE, Cochrane, CINAHL and AMED was performed. Studies were included if they reported hazard ratios (HR) analysing the impact of pre-operatively defined myosteatosis, or similar term, on the long-term outcomes following surgery for gastro-intestinal malignancy. A total of 39 full texts articles were reviewed for inclusion, with 19 being included after the inclusion criteria were applied. A sub-group analysis was performed for those studies reporting outcomes for colorectal cancer patients only. Results: The total number of included patients across all studies was 14,481. Patients with myosteatosis had a significantly poorer overall survival, according to univariate (HR 1.82, 95% CI 1.67 – 1.99) and multivariable (HR 1.66, 95% CI 1.49 – 1.86) analysis. This was also demonstrated with regards to cancer-specific survival (univariate HR 1.62, 95% CI 1.18 – 2.22, multivariable HR 1.73, 95% CI 1.48 – 2.03) and recurrence-free survival (univariate HR 1.28, 95% CI 1.10 – 1.48, multivariable HR 1.38, 95% CI 1.07 – 1.77). Conclusions: This review demonstrates that patients with pre-operative myosteatosis have poorer long-term outcomes following surgery for gastro-intestinal malignancy. Therefore, myosteatosis should be used for pre-operative optimisation and as a prognostic tool before surgery. More standardised definitions of myosteatosis and further cohort studies of patients with non-colorectal malignancies are required.

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The impact of stakeholders’ temporal orientaton on short- and long-term IPO outcomes: A meta-analysis

Long Range Planning ◽

10.1016/j.lrp.2018.10.003 ◽

2020 ◽

Vol 53 (2) ◽

pp. 101853 ◽

Cited By ~ 1

Author(s):

Peter-Jan Engelen ◽

Pursey Heugens ◽

Marc van Essen ◽

Roxana Turturea ◽

Nick Bailey

Keyword(s):

Meta Analysis ◽

Short And Long Term ◽

The Impact

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The Big Why of Implementing Computational Thinking In STEM Education: A Systematic Literature Review

Malaysian Journal of Social Sciences and Humanities (MJSSH) ◽

10.47405/mjssh.v6i3.706 ◽

2021 ◽

Vol 6 (3) ◽

pp. 272-289

Author(s):

Norhafizan Abdul Wahab ◽

Othman Talib ◽

Fazilah Razali ◽

Nurzatulshima Kamarudin

Keyword(s):

Literature Review ◽

Stem Education ◽

Systematic Literature Review ◽

Web Of Science ◽

Meta Analysis ◽

Computational Thinking ◽

Considerable Effect ◽

Research Gaps ◽

Prisma Statement

Computational Thinking (CT) has been increasingly embraced as a reformation in STEM education. This paper discusses why the implementation of CT would have a considerable effect on STEM education. The first objective of this systematic literature review is to identify the subjects that incorporate the most elements of CT in STEM education. Secondly, it aims to provide an overview of CT practices in the classrooms. Finally, the major findings of this study seek to discuss the benefits and challenges of the use of CT in STEM education. Fifteen articles were methodically selected from Scopus, Web of Science, Dimensions, and Google Scholar databases as the relevant studies to be discussed in this systematic study, based on the PRISMA Statement (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) review technique. This review identifies current research gaps and directions for the practice and implementation of CT in STEM education. Further analysis of the articles has contributed to a conclusion that CT has become more widespread and multi-disciplinary and seems to have propagated improvements in STEM education. Still, a new study is required, especially on long-term implications.

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NEUROPHYSIOLOGICAL AND NEUROPSYCHOLOGICAL FEATURES AT PATIENTS FROM OCCUPATIONAL NOISE-INDUCED HEARING LOSS

Hygiene and Sanitation ◽

10.18821/0016-9900-2019-98-10-1068-1073 ◽

2019 ◽

Vol 98 (10) ◽

pp. 1068-1073

Author(s):

Oksana I. Shevchenko ◽

D. V. Rusanova ◽

O. L. Lakhman

Keyword(s):

Latent Period ◽

Cognitive Activity ◽

Functional Condition ◽

Long Term Memory ◽

Term Memory ◽

Diagnostic Signs ◽

Constant Potential ◽

Definition Of ◽

The Impact

Introduction. Issues of studying the central origins and development of оccupational pathology in the faces of flight personnel define a need for the application of neurophysiological and neuropsychological methods of research. Material and methods. The levels of constant potential (LCP), characteristics the somatosensory caused potentials (SSVP), neuropsychological features in 95 patients with оccupational neurosensory deafness (ONSD) and 35 cases in a group of comparison are studied. Methods of the statistical analysis with a definition of W-of criterion of Shapiro-Uilka, Mann-Whitney›s U-criterion, coefficient of correlation of Spirmen, the discriminant analysis are applied. Results. in ONSD at patients the quantity of cases with the increased values of average LCP were established to prevail significantly in comparison with those in patients of a group of comparison (39% and 13% respectively, р = 0.03), strengthening of neuropower exchange in right and left frontal, central, left central, left parietal, right temporal assignments, increase in duration of the latent period of N18, N30 components are registered (р < 0.05). The condition of the cognitive sphere was characterized by the easily expressed violations of functions of analytical and synthetic thinking, оral-aural memory, visual, long-term memory, reciprocal coordination, impressive speech. Correlation connection between the index of N13-N20 and indices characterizing a condition of long-term memory, reciprocal coordination, the expressional speech is established (rs=0.45; 0.28; 0.28 at р =0.008; 0.04; 0.03 respectively), an index the between hemispheres of the relations Fd-Fs and latency of P25 and N30 (rs = 0.53 and 0.29 at р =0.009; 0.02 respectively). Diagnostic signs of brain deficiency at patients with ONSD were indices of visual gnosis, reciprocal coordination, LCP in right central, central parietal assignments of a brain, duration of the latent period of N30, N18-N20 (F=9.14; 5.43; 6.08; 4.41 4.77; 4.34 respectively). Conclusions. Violations of power metabolism in the frontal and central and parietal and temporal assignments of a brain, a functional condition of the central carrying-out structures, disorganization of cognitive activity were established to be a consequence of the impact of aviation noise and the reason of brain deficiency.

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Habitat and social context affect memory phenotype, exploration and covariance among these traits

Philosophical Transactions of the Royal Society B Biological Sciences ◽

10.1098/rstb.2017.0291 ◽

2018 ◽

Vol 373 (1756) ◽

pp. 20170291 ◽

Cited By ~ 12

Author(s):

Sarah Dalesman

Keyword(s):

Individual Differences ◽

Cognitive Abilities ◽

Lymnaea Stagnalis ◽

Memory Formation ◽

Long Term Memory ◽

Wild Populations ◽

In Captivity ◽

Specific Trait ◽

Context Specific

Individual differences in cognitive ability are predicted to covary with other behavioural traits such as exploration and boldness. Selection within different habitats may act to either enhance or break down covariance among traits; alternatively, changing the environmental context in which traits are assessed may result in plasticity that alters trait covariance. Pond snails, Lymnaea stagnalis , from two laboratory strains (more than 20 generations in captivity) and F1 laboratory reared from six wild populations were tested for long-term memory and exploration traits (speed and thigmotaxis) following maintenance in grouped and isolated conditions to determine if isolation: (i) alters memory and exploration; and (ii) alters covariance between memory and exploration. Populations that demonstrated strong memory formation (longer duration) under grouped conditions demonstrated weaker memory formation and reduced both speed and thigmotaxis following isolation. In wild populations, snails showed no relationship between memory and exploration in grouped conditions; however, following isolation, exploration behaviour was negatively correlated with memory, i.e. slow-explorers showing low levels of thigmotaxis formed stronger memories. Laboratory strains demonstrated no covariance among exploration traits and memory independent of context. Together these data demonstrate that the relationship between cognition and exploration traits can depend on both habitat and context-specific trait plasticity. This article is part of the theme issue ‘Causes and consequences of individual differences in cognitive abilities’.

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Keep Your Brain Tissue Healthy

Increase your Brainability—and Reduce your Risk of Dementia ◽

10.1093/oso/9780198860341.003.0003 ◽

2021 ◽

pp. 27-66

Author(s):

Charles Alessi ◽

Larry W. Chambers ◽

Muir Gray

Keyword(s):

Physical Activity ◽

Immune System ◽

Inflammatory Response ◽

Stress Reduction ◽

Indirect Effects ◽

Cognitive Abilities ◽

Direct And Indirect Effects ◽

The Impact ◽

The Brain

This chapter starts by advising how to reduce the impact of stress. When stress becomes long term, the immune system becomes less sensitive to cortisol, and since inflammation is partly regulated by this hormone, this decreased sensitivity heightens the inflammatory response and allows inflammation to get out of control, increasing our risk of many diseases. You can reduce your stress yourself through a variety of methods, including physical activity and mindfulness-based stress reduction. Adequate sleep is also a major factor that can improve cognitive abilities and reduce the risk of dementia, and this chapter outlines what we need to know about sleep cycles, insomnia, and sleep disordered breathing, and how to sleep more and sleep better. The chapter then covers how to protect your brain from over medication (polypharmacy). It finishes by discussing how to maintain and indeed increase your levels of physical activity, and how increasing physical activity has both direct and indirect effects on the brain.

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