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Journal of Infection and Public Health Oct 2023Dengue is caused by the dengue virus (DENVs) infection and clinical manifestations include dengue fever (DF), dengue hemorrhagic fever (DHF), or dengue shock syndrome...
Dengue is caused by the dengue virus (DENVs) infection and clinical manifestations include dengue fever (DF), dengue hemorrhagic fever (DHF), or dengue shock syndrome (DSS). Due to a lack of antiviral drugs and effective vaccines, several therapeutic and control strategies have been proposed. A systemic literature review was conducted according to PRISMA guidelines to select proper references to give an overview of DENV infection. Results indicate that understanding the virus characteristics and epidemiology are essential to gain the basic and clinical knowledge as well as dengue disseminated pattern and status. Different factors and mechanisms are thought to be involved in the presentation of DHF and DSS, including antibody-dependent enhancement, immune dysregulation, viral virulence, host genetic susceptibility, and preexisting dengue antibodies. This study suggests that dissecting pathogenesis and risk factors as well as developing different types of therapeutic and control strategies against DENV infection are urgently needed.
Topics: Humans; Antiviral Agents; Dengue; Genetic Predisposition to Disease; Risk Factors; Virulence
PubMed: 37595484
DOI: 10.1016/j.jiph.2023.08.001 -
JAMA Network Open Jan 2023Despite discrete etiologies leading to delirium, it is treated as a common end point in hospital and in clinical trials, and delirium research may be hampered by the...
IMPORTANCE
Despite discrete etiologies leading to delirium, it is treated as a common end point in hospital and in clinical trials, and delirium research may be hampered by the attempt to treat all instances of delirium similarly, leaving delirium management as an unmet need. An individualized approach based on unique patterns of delirium pathophysiology, as reflected in predisposing factors and precipitants, may be necessary, but there exists no accepted method of grouping delirium into distinct etiologic subgroups.
OBJECTIVE
To conduct a systematic review to identify potential predisposing and precipitating factors associated with delirium in adult patients agnostic to setting.
EVIDENCE REVIEW
A literature search was performed of PubMed, Embase, Web of Science, and PsycINFO from database inception to December 2021 using search Medical Subject Headings (MeSH) terms consciousness disorders, confusion, causality, and disease susceptibility, with constraints of cohort or case-control studies. Two reviewers selected studies that met the following criteria for inclusion: published in English, prospective cohort or case-control study, at least 50 participants, delirium assessment in person by a physician or trained research personnel using a reference standard, and results including a multivariable model to identify independent factors associated with delirium.
FINDINGS
A total of 315 studies were included with a mean (SD) Newcastle-Ottawa Scale score of 8.3 (0.8) out of 9. Across 101 144 patients (50 006 [50.0%] male and 49 766 [49.1%] female patients) represented (24 015 with delirium), studies reported 33 predisposing and 112 precipitating factors associated with delirium. There was a diversity of factors associated with delirium, with substantial physiological heterogeneity.
CONCLUSIONS AND RELEVANCE
In this systematic review, a comprehensive list of potential predisposing and precipitating factors associated with delirium was found across all clinical settings. These findings may be used to inform more precise study of delirium's heterogeneous pathophysiology and treatment.
Topics: Adult; Humans; Male; Female; Disease Susceptibility; Delirium; Precipitating Factors; Prospective Studies; Case-Control Studies
PubMed: 36607634
DOI: 10.1001/jamanetworkopen.2022.49950 -
Scientific Reports Nov 2021Molar-Incisor Hypomineralization (MIH) is a qualitative defect of enamel of unknown etiology, affecting one or more permanent molars and may include incisors. This... (Meta-Analysis)
Meta-Analysis
Molar-Incisor Hypomineralization (MIH) is a qualitative defect of enamel of unknown etiology, affecting one or more permanent molars and may include incisors. This condition is a clinical challenge and its prevalence is still uncertain given the recent increase in research. Thus, we aimed to comprehensively estimate the overall prevalence of MIH and associated characteristics. This systematic review is reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). We searched articles using PubMed, MEDLINE, CENTRAL, Web of Science, SciELO, LILACS and TRIP databases, until July 2021. Heterogeneity and publication bias were computed via I test statistics and Egger's significance test, respectively. Random-effects meta-analysis of prevalence were processed. We used the Strength of Recommendation Taxonomy [SORT] to grading the strength of evidence. Overall, 116 observational studies were included, with one study with moderate methodological quality and the remaining of high methodological quality. Subgroup analysis confirmed an influence of not using the 2003 MIH case definition (p = 0.0066). The pooled prevalence of MIH was 13.5% (95% CI 12.0-15.1, I = 98.0%). Affected incisors were seen in 36.6% (95% CI 30.0-43.7, I = 92.5%) of the cases. Lastly, the prevalence of hypomineralization of the second primary molars was observed in 3.6% of the MIH cases (95% CI 1.9-6.8, I = 96.3%). America was the continent with highest prevalence (15.3, 95% CI 12.8-18.3, p < 0.001, I = 96.3%) and Asia had the lowest prevalence (10.7, 95% CI 8.5-13.5, p < 0.001, I = 98.7%), however no continental differences were found. Sample size and year of publication were slight contributing factors to the heterogeneity in the analysis. Overall, these results were classified with a SORT A recommendation.
Topics: Dental Enamel Hypoplasia; Disease Susceptibility; Genetic Predisposition to Disease; Global Health; Humans; Incisor; Molar; Phenotype; Population Surveillance; Prevalence; Risk Factors; Severity of Illness Index; Sex Factors
PubMed: 34789780
DOI: 10.1038/s41598-021-01541-7 -
Blood Reviews Nov 2016Most knowledge of hemophagocytic syndromes (HPSs) including hemophagocytic lymphohistiocytosis (HLH) is derived from pediatric studies; literature on adult HPS/HLH... (Meta-Analysis)
Meta-Analysis Review
Most knowledge of hemophagocytic syndromes (HPSs) including hemophagocytic lymphohistiocytosis (HLH) is derived from pediatric studies; literature on adult HPS/HLH predominantly consists of small retrospective studies with clinical and methodological heterogeneity. The aims of this systematic scoping review were to provide an overview of existing literature on adult HPS/HLH, describe current practices in diagnosis and treatment, and propose priorities for future research. Articles from Ovid Medline, Embase and Pubmed (1975-2015) describing 10 or more unique adults (age>15years) with HPS/HLH were included. 82 publications were eligible: 10 were prospective and 72 were retrospective. Of the six distinct diagnostic criteria, the HLH-2004 criteria were by far the most commonly used. A minority of studies tested for genetic abnormalities (12), soluble interleukin-2 receptor (11), and/or NK function (11) in a subset of patients. Most centers used steroids and either etoposide-based (HLH-94/HLH-2004) or doxorubicin-based (CHOP) initial therapy regimens. Allogeneic hematopoietic cell therapy for treatment of adult HLH has rarely been reported. Mortality in larger treatment focused studies ranged from 20 to 88%. Developing adult-specific diagnostic criteria based on widely evaluable features of secondary HPS/HLH and establishing standard initial therapies are priorities for future research.
Topics: Combined Modality Therapy; Disease Susceptibility; Humans; Lymphohistiocytosis, Hemophagocytic; Practice Guidelines as Topic; Prognosis; Treatment Outcome
PubMed: 27238576
DOI: 10.1016/j.blre.2016.05.001 -
Journal of Child Psychology and... May 2016The etiology of Autism Spectrum Disorder (ASD) has been recently debated due to emerging findings on the importance of shared environmental influences. However, two... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
The etiology of Autism Spectrum Disorder (ASD) has been recently debated due to emerging findings on the importance of shared environmental influences. However, two recent twin studies do not support this and instead re-affirm strong genetic effects on the liability to ASD, a finding consistent with previous reports. This study conducts a systematic review and meta-analysis of all twin studies of ASD published to date and explores the etiology along the continuum of a quantitative measure of ASD.
METHODS
A PubMed Central, Science Direct, Google Scholar, Web of Knowledge structured search conducted online, to identify all twin studies on ASD published to date. Thirteen primary twin studies were identified, seven were included in the meta-analysis by meeting Systematic Recruitment criterion; correction for selection and ascertainment strategies, and applied prevalences were assessed for these studies. In addition, a quantile DF extremes analysis was carried out on Childhood Autism Spectrum Test scores measured in a population sample of 6,413 twin pairs including affected twins.
RESULTS
The meta-analysis correlations for monozygotic twins (MZ) were almost perfect at .98 (95% Confidence Interval, .96-.99). The dizygotic (DZ) correlation, however, was .53 (95% CI .44-.60) when ASD prevalence rate was set at 5% (in line with the Broad Phenotype of ASD) and increased to .67 (95% CI .61-.72) when applying a prevalence rate of 1%. The meta-analytic heritability estimates were substantial: 64-91%. Shared environmental effects became significant as the prevalence rate decreased from 5-1%: 07-35%. The DF analyses show that for the most part, there is no departure from linearity in heritability.
CONCLUSIONS
We demonstrate that: (a) ASD is due to strong genetic effects; (b) shared environmental effects become significant as a function of lower prevalence rate; (c) previously reported significant shared environmental influences are likely a statistical artefact of overinclusion of concordant DZ twins.
Topics: Autism Spectrum Disorder; Diseases in Twins; Genetic Predisposition to Disease; Humans
PubMed: 26709141
DOI: 10.1111/jcpp.12499 -
Journal of Gastroenterology and... Oct 2023Celiac disease is a global disease requiring genetic susceptibility and gluten exposure to trigger immune-mediated enteropathy. The effect of the degree of... (Review)
Review
Celiac disease is a global disease requiring genetic susceptibility and gluten exposure to trigger immune-mediated enteropathy. The effect of the degree of gluten-containing grain availability on celiac disease prevalence is unknown. Our objective was to compare country-based gluten availability to celiac prevalence using a systematic literature review. We searched MEDLINE, Embase, Cochrane, and Scopus until May 2021. We included population-based serum screening with confirmatory testing (second serological study or small intestine biopsy) and excluded specific, high-risk, or referral populations. We determined country-specific gluten availability using the United Nations food balance for wheat, barley, and rye. Human leukocyte antigen (HLA) frequencies were obtained from allelefrequencies.net. The primary outcome was association between gluten-containing grain availability and celiac disease prevalence. Generalized linear mixed models method with Poisson's link was used for analysis. We identified 5641 articles and included 120 studies on 427 146 subjects from 41 countries. Celiac disease prevalence was 0-3.1%, median 0.75% (interquartile range 0.35, 1.22). Median wheat supply was 246 g/capita/day (interquartile range 214.8, 360.7). The risk ratio (RR) for wheat availability on celiac disease was 1.002 (95% confidence interval [CI]: 1.0001, 1.004, P = 0.036). A protective association was seen with barley, RR 0.973 (95% CI: 0.956, 0.99, P = 0.003), and rye, RR 0.989 (95% CI: 0.982, 0.997, P = 0.006). The RR for gross domestic product on celiac disease prevalence was 1.009 (95% CI: 1.005, 1.014, P < 0.001). The RR for HLA-DQ2 was 0.982 (95% CI: 0.979, 0.986, P < 0.001), and that for HLA-DQ8 was 0.957 (95% CI: 0.950, 0.964, P < 0.001). In this geo-epidemiologic study, gluten-containing grain availability showed mixed associations with celiac disease prevalence.
Topics: Humans; Celiac Disease; Glutens; Genetic Predisposition to Disease; Biopsy
PubMed: 37332011
DOI: 10.1111/jgh.16260 -
Frontiers in Immunology 2019To help inform decision making in the clinical setting, we carried out a systematic review and meta-analysis to estimate the association of thyroid disease risks with... (Meta-Analysis)
Meta-Analysis
To help inform decision making in the clinical setting, we carried out a systematic review and meta-analysis to estimate the association of thyroid disease risks with obesity. Pubmed, Embase, Web of Science, Cochrane database and Google Scholar electronic databases were searched from inception to October 31, 2018 without language restrictions to explore the relationship between thyroid disorders and obesity. The relative risk (RR) or odds risk (OR) for thyroid disorders were pooled using the SPSS and STATA software. A total of 22 studies were included in the study. (1) Meta-analysis showed that obesity was significantly associated with an increased risk of hypothyroidism (RR = 1.86, 95% CI 1.63-2.11, < 0.001). Meta-analyses after stratification further showed that obese population had increased risks of overt hypothyroidism (RR = 3.21, 95% CI 2.12-4.86, < 0.001) and subclinical hypothyroidism (RR = 1.70, 95% CI 1.42-2.03, < 0.001). (2) Further meta-analysis also showed obesity was clearly associated with Hashimoto's thyroiditis (RR = 1.91, 95% CI 1.10-3.32, = 0.022), but not with Graves' disease. (3) In the meta-analysis of antibodies, obesity was correlated with positive thyroid peroxidase antibody (TPOAb) (RR = 1.93, 95% CI 1.31-2.85, = 0.001), but not with positive thyroglobulin antibody (TGAb). Obesity was significantly related to hypothyroidism, HT, and TPOAb, implying that prevention of obesity is crucial for thyroid disorders. PROSPERO: CRD42018096897.
Topics: Autoimmunity; Biomarkers; Disease Susceptibility; Humans; Obesity; Odds Ratio; Thyroid Diseases; Thyroid Function Tests; Thyroid Gland
PubMed: 31681268
DOI: 10.3389/fimmu.2019.02349 -
PloS One 2022Although advanced age and presence of comorbidities significantly impact the variation observed in the clinical symptoms of COVID-19, it has been suggested that genetic... (Meta-Analysis)
Meta-Analysis
Although advanced age and presence of comorbidities significantly impact the variation observed in the clinical symptoms of COVID-19, it has been suggested that genetic variants may also be involved in the disease. Thus, the aim of this study was to perform a systematic review with meta-analysis of the literature to identify genetic polymorphisms that are likely to contribute to COVID-19 pathogenesis. Pubmed, Embase and GWAS Catalog repositories were systematically searched to retrieve articles that investigated associations between polymorphisms and COVID-19. For polymorphisms analyzed in 3 or more studies, pooled OR with 95% CI were calculated using random or fixed effect models in the Stata Software. Sixty-four eligible articles were included in this review. In total, 8 polymorphisms in 7 candidate genes and 74 alleles of the HLA loci were analyzed in 3 or more studies. The HLA-A*30 and CCR5 rs333Del alleles were associated with protection against COVID-19 infection, while the APOE rs429358C allele was associated with risk for this disease. Regarding COVID-19 severity, the HLA-A*33, ACE1 Ins, and TMPRSS2 rs12329760T alleles were associated with protection against severe forms, while the HLA-B*38, HLA-C*6, and ApoE rs429358C alleles were associated with risk for severe forms of COVID-19. In conclusion, polymorphisms in the ApoE, ACE1, TMPRSS2, CCR5, and HLA loci appear to be involved in the susceptibility to and/or severity of COVID-19.
Topics: Apolipoproteins E; COVID-19; Genetic Predisposition to Disease; HLA-A Antigens; Humans; Polymorphism, Genetic
PubMed: 35793369
DOI: 10.1371/journal.pone.0270627 -
Cytokine Jan 2022Inflammatory bowel disease (IBD) is a chronic inflammatory disease that affects the small intestine, colon, and rectum. We evaluated associations between the interleukin... (Meta-Analysis)
Meta-Analysis
Inflammatory bowel disease (IBD) is a chronic inflammatory disease that affects the small intestine, colon, and rectum. We evaluated associations between the interleukin 10 (IL-10) rs3024505 polymorphism and IBD, ulcerative colitis (UC), and Crohn's disease (CD) by meta-analysis. All peer-reviewed manuscripts concerning the relationship between IL-10_rs3024505 and IBD identified by searing the PubMed, Cochrane Library, EMBASE, and Chinese Medical Database were examined. The association between IL-10_rs3024505 and IBD was evaluated in allele (AG), recessive (RG), dominant (DG), homozygous (HMG), and heterozygous (HTG) genetic models. Associations were also conducted on IBD subtypes, CD and UC, and ethnicity (Non-Europeans and Europeans) subgroups. The meta-analysis included 13 studies, 8552 cases (IBD patients), and 12,830 healthy controls. Subgroup analysis of IBD (UC and CD) revealed heterogeneity in AG, DG, and HTG but no heterogeneity in RG or HMG. Moreover, AG, DG, and HTG did not show publication bias in IBD, CD, or UC, but RG and HMG exhibited publication bias. No heterogeneity and no publication bias were found among the five genetic models by a subgroup analysis of Non-Europeans and European ethnicities. The minor allele(T) of rs3024505 was significantly related to IBD: 1.37 (1.30-1.45) for AG, 2.06 (1.74-2.45) for RG, 1.39 (1.27-1.52) for DG, 2.25 (1.89-2.67) for HMG, and 1.32 (1.23-1.40) for HTG (all P < 0.00001). In the subgroup analysis of ethnicity, there was a significant effect of rs3024505 on IBD in Europeans but not non-Europeans: 1.38 (1.31-1.46) for AG, 2.07 (1.73-2.48) for RG, 1.39 (1.31-1.49) for DG, 2.26 (1.89-2.71) for HMG, and 1.33 (1.24-1.42) for HTG in Europeans (all P < 0.00001). Sensitivity analysis showed no dominant study in Europeans, but one study had a dominant impact in Non-Europeans. In conclusion, IL-10_rs3024505 polymorphism confers susceptibility to CD and UC in Europeans, but its impact should have conducted more studies in Non-Europeans.
Topics: Alleles; Animals; Genetic Predisposition to Disease; Humans; Inflammatory Bowel Diseases; Interleukin-10; Polymorphism, Single Nucleotide
PubMed: 34628128
DOI: 10.1016/j.cyto.2021.155721 -
Environmental Health Perspectives Dec 2019Particulate air pollution's physical health effects are well known, but associations between particulate matter (PM) exposure and mental illness have not yet been... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Particulate air pollution's physical health effects are well known, but associations between particulate matter (PM) exposure and mental illness have not yet been established. However, there is increasing interest in emerging evidence supporting a possible etiological link.
OBJECTIVES
This systematic review aims to provide a comprehensive overview and synthesis of the epidemiological literature to date by investigating quantitative associations between PM and multiple adverse mental health outcomes (depression, anxiety, bipolar disorder, psychosis, or suicide).
METHODS
We undertook a systematic review and meta-analysis. We searched Medline, PsycINFO, and EMBASE from January 1974 to September 2017 for English-language human observational studies reporting quantitative associations between exposure to PM in aerodynamic diameter (ultrafine particles) and PM and in aerodynamic diameter ( and , respectively) and the above psychiatric outcomes. We extracted data, appraised study quality using a published quality assessment tool, summarized methodological approaches, and conducted meta-analyses where appropriate.
RESULTS
Of 1,826 citations identified, 22 met our overall inclusion criteria, and we included 9 in our primary meta-analyses. In our meta-analysis of associations between long-term () exposure and depression ( studies), the pooled odds ratio was 1.102 per increase (95% CI: 1.023, 1.189; ). Two of the included studies investigating associations between long-term exposure and anxiety also reported statistically significant positive associations, and we found a statistically significant association between short-term exposure and suicide in meta-analysis at a 0-2 d cumulative exposure lag.
DISCUSSION
Our findings support the hypothesis of an association between long-term exposure and depression, as well as supporting hypotheses of possible associations between long-term exposure and anxiety and between short-term exposure and suicide. The limited literature and methodological challenges in this field, including heterogeneous outcome definitions, exposure assessment, and residual confounding, suggest further high-quality studies are warranted to investigate potentially causal associations between air pollution and poor mental health. https://doi.org/10.1289/EHP4595.
Topics: Air Pollutants; Air Pollution; Bipolar Disorder; Depression; Disease Susceptibility; Environmental Exposure; Humans; Psychotic Disorders; Risk Factors; Suicide
PubMed: 31850801
DOI: 10.1289/EHP4595