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Frontiers in Nutrition 2023Neurological disorders have been considered the major contributors to global long-term disability and lower quality of life. Lifestyle factors, such as dietary patterns,... (Review)
Review
INTRODUCTION
Neurological disorders have been considered the major contributors to global long-term disability and lower quality of life. Lifestyle factors, such as dietary patterns, are increasingly recognized as important determinants of neurological function. Some dietary behaviors, such as Nordic diet (ND) were likely to have protective effects on brain function. However, an understanding of the effectiveness of the ND pattern to improve neurological function and brain health is not fully understood. We review the current evidence that supports the ND pattern in various aspects of neurological function and addresses both proven and less established mechanisms of action based on its food ingredients and biochemical compounds.
METHODS
In this systematic review, PubMed, Web of Science, and Scopus databases were searched from inception to February 2023. Observational and intervention studies were included.
RESULTS
Of the 627 screened studies, 5 observational studies (including three cohorts and two cross-sectional studies) and 3 intervention studies investigating the association between ND and neurological function. Observational studies investigated the association of ND with the following neurological functions: cognition, stroke, and neuropsychological function. Intervention studies investigated the effects of ND on cognition and depression.
DISCUSSION
Despite the limited literature on ND and its association with neurological function, several aspects of ND may lead to some health benefits suggesting neuroprotective effects. The current state of knowledge attributes the possible effects of characteristic components of the ND to its antioxidant, anti-inflammatory, lipid-lowering, gut-brain-axis modulating, and ligand activities in cell signaling pathways. Based on existing evidence, the ND may be considered a recommended dietary approach for the improvement of neurological function and brain health.
SYSTEMATIC REVIEW REGISTRATION
[https://www.crd.york.ac.uk/prospero/], identifier [CRD2023451117].
PubMed: 37645628
DOI: 10.3389/fnut.2023.1215358 -
Neuroscience and Biobehavioral Reviews Jun 2024Among 369 diseases and injuries, the years lived with disability (YLDs) and disability-adjusted life-years (DALYs) rates for severe mental illnesses (SMIs) are within... (Review)
Review
Among 369 diseases and injuries, the years lived with disability (YLDs) and disability-adjusted life-years (DALYs) rates for severe mental illnesses (SMIs) are within the top 20 %. Research on risk and protective factors for SMIs is critically important, as acting on modifiable factors may reduce their incidence or postpone their onset, while early detection of new cases enables prompt treatment and improves prognosis. However, as most of the studies on these factors are from Western countries, the findings are not generalizable across ethnic groups. This led us to conduct a systematic review of the risk and protective factors for SMIs identified in Asian studies. There were common factors in Asian and Western studies and unique factors in Asian studies. In-depth knowledge of these factors could help reduce disability, and the economic and emotional burden of SMIs. We hope that this review will inform future research and policy-making on mental health in Asian countries.
Topics: Humans; Mental Disorders; Asia; Risk Factors; Protective Factors
PubMed: 38608827
DOI: 10.1016/j.neubiorev.2024.105652 -
World Journal of Pediatrics : WJP May 2024Comprehensive quantitative evidence on the risk and protective factors for sudden infant death syndrome (SIDS) effects is lacking. We investigated the risk and... (Review)
Review
BACKGROUND
Comprehensive quantitative evidence on the risk and protective factors for sudden infant death syndrome (SIDS) effects is lacking. We investigated the risk and protective factors related to SIDS.
METHODS
We conducted an umbrella review of meta-analyses of observational and interventional studies assessing SIDS-related factors. PubMed/MEDLINE, Embase, EBSCO, and Google Scholar were searched from inception until January 18, 2023. Data extraction, quality assessment, and certainty of evidence were assessed by using A Measurement Tool Assessment Systematic Reviews 2 following PRISMA guidelines. According to observational evidence, credibility was graded and classified by class and quality of evidence (CE; convincing, highly suggestive, suggestive, weak, or not significant). Our study protocol was registered with PROSPERO (CRD42023458696). The risk and protective factors related to SIDS are presented as equivalent odds ratios (eORs).
RESULTS
We identified eight original meta-analyses, including 152 original articles, covering 12 unique risk and protective factors for SIDS across 21 countries/regions and five continents. Several risk factors, including prenatal drug exposure [eOR = 7.84 (95% CI = 4.81-12.79), CE = highly suggestive], prenatal opioid exposure [9.55 (95% CI = 4.87-18.72), CE = suggestive], prenatal methadone exposure [9.52 (95% CI = 3.34-27.10), CE = weak], prenatal cocaine exposure [4.38 (95% CI = 1.95-9.86), CE = weak], prenatal maternal smoking [2.25 (95% CI = 1.95-2.60), CE = highly suggestive], postnatal maternal smoking [1.97 (95% CI = 1.75-2.22), CE = weak], bed sharing [2.89 (95% CI = 1.81-4.60), CE = weak], and infants found with heads covered by bedclothes after last sleep [11.01 (95% CI = 5.40-22.45), CE = suggestive], were identified. On the other hand, three protective factors, namely, breastfeeding [0.57 (95% CI = 0.39-0.83), CE = non-significant], supine sleeping position [0.48 (95% CI = 0.37-0.63), CE = suggestive], and pacifier use [0.44 (95% CI = 0.30-0.65), CE = weak], were also identified.
CONCLUSIONS
Based on the evidence, we propose several risk and protective factors for SIDS. This study suggests the need for further studies on SIDS-related factors supported by weak credibility, no association, or a lack of adequate research.
Topics: Female; Humans; Infant; Infant, Newborn; Pregnancy; Meta-Analysis as Topic; Prenatal Exposure Delayed Effects; Protective Factors; Risk Factors; Sudden Infant Death
PubMed: 38684567
DOI: 10.1007/s12519-024-00806-1 -
Trauma, Violence & Abuse Dec 2023This systematic review provides an overview of existing research on risk and protective factors associated with violence against women and girls (VAWG) in conflict and... (Review)
Review
This systematic review provides an overview of existing research on risk and protective factors associated with violence against women and girls (VAWG) in conflict and natural disaster settings. PubMed (Medline); PsycINFO; Scopus; and Cochrane Center trials registrar were searched as well as relevant internet repositories for VAWG research. The inclusion criteria covered studies that were published between January 1995 and December 2020, documented risk and/or protective factors for VAWG in conflict or natural disaster-affected settings and included primary or secondary data analysis. A total of 1,413 records were initially identified and 86 articles (covering 77 studies) were included in the final analysis. The findings show that many preexisting risk factors for VAWG are exacerbated in armed conflict and natural disaster-affected settings. Poverty and economic stress, men's substance abuse, exposure to violence, changing gender roles in contexts of inequitable gender norms, and a lack of social support are some of the risk factors associated with male perpetration or female experience of violence. In addition, risk factors specific to experiences during armed conflict or in a natural disaster (e.g., displacement, insecurity or congestion in and around displacement camps, militarization of society, killing of family, destruction of property, etc.) are associated with higher prevalence of VAWG in these contexts.
PubMed: 36259449
DOI: 10.1177/15248380221129303 -
World Journal of Pediatrics : WJP Dec 2023Following the "hygiene hypothesis", the role of sibship composition in asthma and wheezing has been extensively studied, but the findings are inconsistent. For the first... (Review)
Review
BACKGROUND
Following the "hygiene hypothesis", the role of sibship composition in asthma and wheezing has been extensively studied, but the findings are inconsistent. For the first time, this systematic review and meta-analysis synthesized evidences from studies investigating the association of sibship size and birth order with risk of asthma and wheezing.
METHODS
Fifteen databases were searched to identify eligible studies. Study selection and data extraction were performed independently by pairs of reviewers. Meta-analysis with robust variance estimation (RVE) was used to produce pooled risk ratio (RR) effect estimates from comparable numerical data.
RESULTS
From 17,466 identified records, 158 reports of 134 studies (> 3 million subjects) were included. Any wheezing in the last ≤ 1.5 years occurred more frequently in infants with ≥ 1 sibling [pooled RR 1.10, 95% confidence interval (CI) 1.02-1.19] and ≥ 1 older sibling (pooled RR 1.16, 95% CI 1.04-1.29). The pooled effect sizes for asthma were overall statistically nonsignificant, although having ≥ 1 older sibling was marginally protective for subjects aged ≥ 6 years (pooled RR 0.93, 95% CI 0.88-0.99). The effect estimates weakened in studies published after 2000 compared with earlier studies.
CONCLUSIONS
Being second-born or later and having at least one sibling is associated with a slightly increased risk of temporary wheezing in infancy. In contrast, being second-born or later is associated with marginal protection against asthma. These associations appear to have weakened since the turn of the millennium, possibly due to lifestyle changes and socioeconomic development. Video Abstract.
PubMed: 36997765
DOI: 10.1007/s12519-023-00706-w -
Journal of Psychiatric Research Aug 2023Glucagon-like peptide 1 (GLP-1) receptor agonists are widely used for glycemic control in patients with diabetes mellitus (DM) and are primarily indicated for type 2... (Review)
Review
Glucagon-like peptide 1 (GLP-1) receptor agonists are widely used for glycemic control in patients with diabetes mellitus (DM) and are primarily indicated for type 2 diabetes mellitus (T2DM). GLP-1 receptor agonists have also been shown to have neuroprotective and antidepressant properties. Replicated evidence suggests that individuals with DM are significantly more likely to develop depression. Herein, we aim to investigate whether GLP-1 receptor agonists can be used prophylactically on patients with DM to lower the risk of incident depression. We conducted a systematic search for English-language articles published on the PubMed/MEDLINE, Scopus, Embase, APA, PsycInfo, Ovid and Google Scholar databases from inception to June 6, 2022. Four retrospective observational studies were identified that evaluated the neuroprotective effects of GLP-1 receptor agonists on incident depression in patients with DM. We found mixed results with regards to lowering the risk of incident depression, with two studies demonstrating a significant reduction in risk and two studies showing no such effect. A single study found that dulaglutide may lower susceptibility to depression. Our results were limited by high interstudy heterogeneity, paucity of literature, and lack of controlled trials. While we did not find evidence of GLP-1 receptor agonists significantly lowering risk of incident depression in patients with DM, promising neuroprotective data presented in two of the included papers, specifically on dulaglutide where information is scarce, provide the impetus for further investigation. Future research should focus on better elucidating the neuroprotective potential of different classes and doses of GLP-1 receptor agonists using controlled trials.
Topics: Humans; Diabetes Mellitus, Type 2; Hypoglycemic Agents; Glucagon-Like Peptide-1 Receptor; Depression; Protective Factors; Retrospective Studies; Glucagon-Like Peptide 1
PubMed: 37331261
DOI: 10.1016/j.jpsychires.2023.05.041 -
Gene Jun 2024Atopic dermatitis (AD) is a chronic pruritic inflammatory skin disease that is closely linked to genetic factors. Previous studies have revealed numerous single... (Meta-Analysis)
Meta-Analysis Review
AIM
Atopic dermatitis (AD) is a chronic pruritic inflammatory skin disease that is closely linked to genetic factors. Previous studies have revealed numerous single nucleotide polymorphisms (SNPs) that been related to susceptibility to AD; however, the results are conflicting. Therefore, a meta-analysis was conducted to assess the associations of these polymorphisms and AD risk.
MATERIAL AND METHODS
PubMed, Web of Science, Embase, Cochrane Library, and China National Knowledge Infrastructure databases were retrieved to identify eligible studies, with selected polymorphisms being reported in a minimum of three separate studies. The Newcastle-Ottawa Scale (NOS) was used to evaluate study quality. Review Manager 5.3 and STATA 14.0 were used to perform the meta-analysis.
RESULTS
After screening, 64 studies involving 13 genes (24 SNPs) were selected for inclusion in the meta-analysis. Nine SNPs were positively correlated with AD susceptibility [filaggrin (FLG) R501X, FLG 2282del4, chromosome 11q13.5 rs7927894, interleukin (IL)-17A rs2275913, IL-18 -137 G/C, Toll-like receptor 2 (TLR2) rs5743708, TLR2 A-16934 T, serine protease inhibitor Kazal type-5 (SPINK5) Asn368Ser, interferon-γ (IFN-γ) T874A] and one was negatively associated with AD susceptibility (IL-4 -1098 T/G). The 14 remaining SNPs were not significantly associated with AD susceptibility.
CONCLUSIONS
Nine SNPs that may be risk factors and one SNP that may be a protective factor for AD were identified, providing a reference for AD prediction, prevention, and therapy.
Topics: Humans; Dermatitis, Atopic; Genetic Predisposition to Disease; Toll-Like Receptor 2; Polymorphism, Single Nucleotide; Skin; Intermediate Filament Proteins
PubMed: 38513928
DOI: 10.1016/j.gene.2024.148397 -
Journal of Psychosomatic Research Dec 2023This study aims to assess the global and regional prevalence and the potential risk factors for depression among COPD patients. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
This study aims to assess the global and regional prevalence and the potential risk factors for depression among COPD patients.
METHODS
Web of Science, EMBASE, PubMed, and PsycINFO databases were searched for the literature related to the prevalence and risk factors of depression in COPD. Random-effect models were performed to pool the global prevalence. Sub-group analysis and meta-regression were conducted to investigate the potential heterogeneity. Meta-analysis was performed only on the risk factors that have been reported in a minimum of three studies.
RESULTS
A total of 79 studies from 25 countries were included. The pooled global prevalence of variably defined depression among COPD patients was 34.5% (95% CI: 30.9-38.1). The odds of depression in COPD patients were 3.53 times higher than in non-COPD participants (95% CI: 2.35-5.29). Meta-regression results showed that region, income level, and research setting are the main sources of heterogeneity. Female sex (OR=1.92), living alone (OR=2.29), BODE index (OR=1.48), dyspnea (OR=3.02), impaired quality of life (OR=1.26), and GOLD stage III∼IV (OR=1.96) were found to be significant risk factors for depression in meta-analyses.
CONCLUSIONS
More than one-third of COPD patients experience depression, with marked variations in prevalence across countries and regions. This study further highlights the need for the consolidation of mental health considerations into COPD treatments. High-quality, longitudinal studies and further research are needed to gain a better understanding of risk and protective factors.
Topics: Humans; Female; Prevalence; Quality of Life; Depression; Pulmonary Disease, Chronic Obstructive; Risk Factors
PubMed: 37907038
DOI: 10.1016/j.jpsychores.2023.111537 -
Occupational Medicine (Oxford, England) Oct 2023Hearing loss leads to increased irritability and disengagement in social activities and conversations, which may impact quality of life. Dental professionals are at risk...
BACKGROUND
Hearing loss leads to increased irritability and disengagement in social activities and conversations, which may impact quality of life. Dental professionals are at risk of developing hearing loss through daily exposure to noise from a wide range of equipment that produces significantly high decibels and noise frequencies.
AIMS
The aim of this systematic review was to investigate the risk of hearing loss in dental professionals, including dentists, dental specialists, dental hygienists and dental assistants.
METHODS
This review was conducted following the Cochrane Handbook for Systematic Reviews. PubMed, Scopus, Embase, Cochrane, Science Direct, Google Scholar and ProQuest were searched up to March 2023. Seventeen of 416 studies met the inclusion criteria. Quality assessment was performed according to the Newcastle-Ottawa Scale for cohort and case-control studies, and a modified version of this tool for cross-sectional studies.
RESULTS
The majority of included studies (82%) found a positive association with hearing loss for dentists and dental specialists, with years of clinical experience identified as a prominent risk factor. Dental hygienists and dental assistants were less commonly reported in the literature. Difference between the left and right ears was found in 71% of studies, with the left ear more affected in both dentists and dental assistants due to proximity to the noise-inducing equipment.
CONCLUSIONS
Dental professionals are at risk of hearing loss in their workplace, especially linked to years of clinical experience, which highlights the need for prevention and appropriate ear-protective devices.
PubMed: 37682842
DOI: 10.1093/occmed/kqad084 -
Journal of Global Health Mar 2024This study was designed to evaluate the effects of body mass index (BMI) and weight change on the risk of developing cancer overall and cancer at different sites. (Meta-Analysis)
Meta-Analysis
BACKGROUND
This study was designed to evaluate the effects of body mass index (BMI) and weight change on the risk of developing cancer overall and cancer at different sites.
METHODS
We searched PubMed and other databases up to July 2023 using the keywords related to 'risk', 'cancer', 'weight', 'overweight', and 'obesity'. We identified eligible studies, and the inclusion criteria encompassed cohort studies in English that focused on cancer diagnosis and included BMI or weight change as an exposure factor. Multiple authors performed data extraction and quality assessment, and statistical analyses were carried out using RevMan and R software. We used random- or fixed-effects models to calculate the pooled relative risk (RR) or hazard ratio along with 95% confidence intervals (CIs). We used the Newcastle-Ottawa Scale to assess study quality.
RESULTS
Analysis included 66 cohort studies. Compared to underweight or normal weight, overweight or obesity was associated with an increased risk of endometrial cancer, kidney cancer, and liver cancer but a decreased risk of prostate cancer and lung cancer. Being underweight was associated with an increased risk of gastric cancer and lung cancer but not that of postmenopausal breast cancer or female reproductive cancer. In addition, weight loss of more than five kg was protective against overall cancer risk.
CONCLUSIONS
Overweight and obesity increase the risk of most cancers, and weight loss of >5 kg reduces overall cancer risk. These findings provide insights for cancer prevention and help to elucidate the mechanisms underlying cancer development.
REGISTRATION
Reviewregistry1786.
Topics: Male; Female; Humans; Body Mass Index; Overweight; Thinness; Obesity; Cohort Studies; Breast Neoplasms; Lung Neoplasms; Weight Loss
PubMed: 38547495
DOI: 10.7189/jogh.14.04067