Predictive Performance of Serum β-hCG MoM Levels for Preeclampsia Screening: A Meta-Analysis

ObjectiveThe aim of the present study was to investigate the predictive value of using the multiple of the median (MoM) of β-human chorionic gonadotropin (β-hCG) levels in patients with preeclampsia (PE) and healthy pregnant women.MethodsElectronic databases including PubMed, EBSCO, Ovid, Web of Science, China National Knowledge Infrastructure (CNKI), SinoMed, Wangfang and the Weipu Journal were searched up to May 31, 2020. Two reviewers independently selected the articles and extracted data on study characteristics, quality and results. A random-effects model was employed, and standardized mean difference and 95% confidence intervals were calculated. Twenty-one case-control studies were analyzed in the present meta-analysis, including a total of 2,266 cases and 25,872 healthy controls.ResultsWomen who were diagnosed with PE were found to have higher early second-trimester levels of serum β-hCG MoM compared with healthy controls, although the levels in the first trimester were not significantly different. Ethnicity subgroup analysis demonstrated that the MoM of β-hCG serum levels was significantly higher in PE patients in both Asian and Caucasian populations during the early second trimester.ConclusionThe MoM of β-hCG serum levels was found to be a valuable clinical indicator for predicting PE in the early second trimester, but had little predictive value in the first trimester. However, further assessment of the predictive capacity of β-hCG within larger, diverse populations is required.

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Serum Fetuin-A Levels in Patients with Cardiovascular Disease: A Meta-Analysis

BioMed Research International ◽

10.1155/2014/691540 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 14

Author(s):

Ze-Lin Sun ◽

Qi-Ying Xie ◽

Gong-Liang Guo ◽

Ke Ma ◽

Yuan-Yuan Huang

Keyword(s):

Web Of Science ◽

Meta Analysis ◽

Serum Levels ◽

Arterial Calcification ◽

Cochrane Library ◽

Healthy Controls ◽

Case Control Studies ◽

China National Knowledge Infrastructure ◽

Fetuin A ◽

Knowledge Infrastructure

Background. Fetuin-A (FA) suppresses arterial calcification, promotes insulin resistance, and appears to be elevated in patients with cardiovascular diseases (CVD), but the data is still inconsistent. To clarify the correlation between serum FA levels and the presence and severity of CVDs, we performed this meta-analysis.Method. Potential relevant studies were identified covering the following databases: PubMed, Embase, Web of Science, Cochrane Library, CISCOM, CINAHL, Google Scholar, China BioMedicine (CBM), and China National Knowledge Infrastructure (CNKI) databases. Data from eligible studies were extracted and included in the meta-analysis using a random-effects model.Results. Ten case-control studies, including 1,281 patients with CVDs and 2,663 healthy controls, were included. The results showed significant differences in serum levels of FA between the CVDs patients and the healthy controls (SMD = 1.36, 95%CI: 0.37–2.36,P=0.007). Ethnicity-subgroup analysis implied that low serum FA levels are related to CVDs in Caucasians (SMD = 1.73, 95%CI: 0.20–3.26,P=0.026), but not in Asians (SMD = 1.04, 95%CI: −0.33–2.40,P=0.138).Conclusion. The data indicated that decreased serum FA level is correlated with the development of CVDs. FA might be clinically valuable for reflecting the progression of CVDs.

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Serum and Salivary IgA, IgG, and IgM Levels in Oral Lichen Planus: A Systematic Review and Meta-Analysis of Case-Control Studies

10.20944/preprints201809.0477.v1 ◽

2018 ◽

Author(s):

Hamid Reza Mozaffari ◽

Elisa Zavattaro ◽

Abas Abdolahnejad ◽

Pia Lopez Jornet ◽

Neda Omidpanah ◽

...

Keyword(s):

Lichen Planus ◽

Oral Lichen Planus ◽

Meta Analysis ◽

Serum Levels ◽

Inflammatory Factors ◽

Cochrane Library ◽

Healthy Controls ◽

Case Control Studies ◽

Salivary Iga ◽

Oral Lichen

Background and Aim: Immunoglobulins (IgA, IgG, and IgM) are significant anti-inflammatory factors. The meta-analysis aimed to assess the serum and salivary levels of Igs as more important immunoglobulins in patients affected by oral lichen planus (OLP) compared to the healthy controls. Materials and Methods: Four databases, including PubMed/Medline, Scopus, Web of Science, and Cochrane Library as well as Iranian databases were checked up to January 2018 without language restriction. The quality of each involved study was done using the NOS questionnaire. A random-effects model analysis was done by RevMan 5.3 software applying the mean difference (MD) plus 95% confidence intervals (CIs). The CMA 2.0 software was applied to calculate the publication bias among the studies. Results: Out of 70 studies found in the databases, eight studies were involved and analyzed in the meta-analysis. The meta-analysis included 282 OLP patients and 221 healthy controls. The pooled MDs of serum levels of  IgA, IgG, and IgM were -0.13 g/L [95%CI: -0.24, -0.02; P = 0.02], 1.01 g/L [95%CI: -0.91, 2.93; P = 0.30], and -0.06 g/L [95%CI: -0.25, 0.14; P = 0.56], respectively; whereas, the salivary IgA and IgG levels were 71.54 mg/L [95%CI: 12.01, 131.07; P = 0.02] and 0.59 mg/L [95%CI: -0.20, 1.38; P = 0.14], respectively. Conclusions: Considering the few studies performed on saliva, the results suggested that the salivary levels, especially IgA level had a higher diagnostic value than the serum levels. Therefore, the salivary immunoglobulins can play a significant function in the OLP pathogenesis.

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Serum and Salivary IgA, IgG, and IgM Levels in Oral Lichen Planus: A Systematic Review and Meta-Analysis of Case-Control Studies

Medicina ◽

10.3390/medicina54060099 ◽

2018 ◽

Vol 54 (6) ◽

pp. 99 ◽

Cited By ~ 3

Author(s):

Hamid Mozaffari ◽

Elisa Zavattaro ◽

Abas Abdolahnejad ◽

Pia Lopez-Jornet ◽

Neda Omidpanah ◽

...

Keyword(s):

Lichen Planus ◽

Oral Lichen Planus ◽

Meta Analysis ◽

Serum Levels ◽

Inflammatory Factors ◽

Cochrane Library ◽

Healthy Controls ◽

Case Control Studies ◽

Salivary Iga ◽

Oral Lichen

Immunoglobulins (IgA, IgG, and IgM) are significant anti-inflammatory factors. The meta-analysis aimed to assess the serum and salivary levels of Igs as more important immunoglobulins in patients affected by oral lichen planus (OLP) compared to the healthy controls. Four databases, including PubMed/Medline, Scopus, Web of Science, and Cochrane Library as well as Iranian databases were checked up to January 2018 without language restriction. The quality of each involved study was done using the Newcastle–Ottawa Quality Assessment Scale (NOS) questionnaire. A random-effects model analysis was done by RevMan 5.3 software applying the mean difference (MD) plus 95% confidence intervals (CIs). The CMA 2.0 software was applied to calculate the publication bias among the studies. Out of 70 studies found in the databases, 8 studies were involved and analyzed in the meta-analysis. The meta-analysis included 282 OLP patients and 221 healthy controls. The pooled MDs of serum levels of IgA, IgG, and IgM were −0.13 g/L [95% CI: −0.24, −0.02; P = 0.02], 1.01 g/L [95% CI: −0.91, 2.93; P = 0.30], and −0.06 g/L [95% CI: −0.25, 0.14; P = 0.56], respectively; whereas, the salivary IgA and IgG levels were 71.54 mg/L [95% CI: 12.01, 131.07; P = 0.02] and 0.59 mg/L [95% CI: −0.20, 1.38; P = 0.14], respectively. Considering the few studies performed on saliva, the results suggested that the salivary levels, especially IgA level had higher values than the serum levels. Therefore, the salivary immunoglobulins can play a significant function in the OLP pathogenesis.

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Association between ALDH2 Gene Polymorphism and Late-onset Alzheimer Disease: An Up-to-date Meta-analysis

Current Alzheimer Research ◽

10.2174/1567205017666200317102337 ◽

2020 ◽

Vol 17 (2) ◽

pp. 105-111

Author(s):

Haitao Liu ◽

Wei Ge ◽

Wei Chen ◽

Xue Kong ◽

Weiming Jian ◽

...

Keyword(s):

Gene Polymorphism ◽

Large Scale ◽

Late Onset ◽

Meta Analysis ◽

Case Control ◽

Cochrane Library ◽

Positive Trend ◽

Case Control Studies ◽

China National Knowledge Infrastructure ◽

Aldh2 Gene

Objectives: Previous case-control studies have focused on the relationship between ALDH2 gene polymorphism and late-onset Alzheimer's Disease (LOAD), but no definite unified conclusion has been reached. Therefore, the correlation between ALDH2 Glu504Lys polymorphism and LOAD remains controversial. To analyze the correlation between ALDH2 polymorphism and the risk of LOAD, we implemented this up-to-date meta-analysis to assess the probable association. Methods: Studies were searched through China National Knowledge Infrastructure (CNKI), VIP Database for Chinese Technical Periodicals, China Biology Medicine, PubMed, Cochrane Library, Clinical- Trials.gov, Embase, and MEDLINE from January 1, 1994 to December 31, 2018, without any restrictions on language and ethnicity. Results: Five studies of 1057 LOAD patients and 1136 healthy controls met our criteria for the analysis. Statistically, the ALDH2 GA/AA genotype was not linked with raising LOAD risk (odds ratio (OR) = 1.48, 95% confidence interval (CI) = 0.96-2.28, p = 0.07). In subgroup analysis, the phenomenon that men with ALDH2*2 had higher risk for LOAD (OR = 1.72, 95%CI = 1.10-2.67, p = 0.02) was observed. Conclusions: This study comprehends only five existing case-control studies and the result is negative. The positive trend might appear when the sample size is enlarged. In the future, more large-scale casecontrol or cohort studies should be done to enhance the association between ALDH2 polymorphism and AD or other neurodegenerative diseases.

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Systematic review with meta-analysis: effectiveness of hyperbaric oxygenation therapy for ulcerative colitis

Therapeutic Advances in Gastroenterology ◽

10.1177/17562848211023394 ◽

2021 ◽

Vol 14 ◽

pp. 175628482110233

Author(s):

Pingrun Chen ◽

Yina Li ◽

Xian Zhang ◽

Yan Zhang

Keyword(s):

Ulcerative Colitis ◽

Combination Therapy ◽

Hyperbaric Oxygen ◽

Hyperbaric Oxygenation ◽

Meta Analysis ◽

Serum Levels ◽

Cochrane Library ◽

China National Knowledge Infrastructure ◽

Complementary Method ◽

Standard Mean Difference

Background and aims: Hyperbaric oxygenation therapy has been used in the treatment of ulcerative colitis in the past few years. However, its efficacy still remains unclear. The aim of the study was to investigate the efficacy of hyperbaric oxygen combination therapy in patients with ulcerative colitis. Methods: We conducted a comprehensive study search up to September 2020, from the online databases Embase, PubMed, Cochrane Library, China National Knowledge Infrastructure, WanFang and VIP. Results: Thirteen studies comprising 780 patients were included. We found that compared with conventional therapy, hyperbaric oxygen combination therapy was superior in reaching clinical remission [risk ratio (RR)=1.62; 95% confidence interval (CI) 1.42 to 1.84; p < 0.001] and clinical response (RR=1.29; 95% CI 1.21 to 1.38; p < 0.001), with lower disease activity scores [standard mean difference (SMD)= −1.19; 95%CI −1.74 to −0.65; p < 0.001]. An obvious reduction of serum levels of tumor necrosis factor-α (SMD= −1.96; 95%CI −2.50 to −1.41; p < 0.001) and interleukin (IL)-6 (SMD= −2.49; 95% CI −2.84 to −2.15; p < 0.001), and elevation of IL-10 level (SMD=2.40; 95% CI 0.68 to 4.12; p = 0.006) were also observed. Conclusion: Hyperbaric oxygen combination therapy was effective in patients with ulcerative colitis, and has potential as a complementary method for its treatment.

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Meta-analysis reveals significant association between FOXP3 polymorphisms and susceptibility to Graves’ disease

Journal of International Medical Research ◽

10.1177/03000605211004199 ◽

2021 ◽

Vol 49 (4) ◽

pp. 030006052110041

Author(s):

Guiqin Tan ◽

Xin Wang ◽

Guangbing Zheng ◽

Juan Du ◽

Fangyu Zhou ◽

...

Keyword(s):

Meta Analysis ◽

Pooled Analysis ◽

Case Control ◽

Graves Disease ◽

Nucleotide Polymorphisms ◽

Case Control Studies ◽

China National Knowledge Infrastructure ◽

Asian Populations ◽

Knowledge Infrastructure ◽

Independent Case

Objective This meta-analysis aimed to determine the associations between the rs3761547, rs3761548, and rs3761549 single-nucleotide polymorphisms (SNPs) of the forkhead box P3 ( FOXP3) gene and susceptibility to Graves’ disease (GD). Methods Case–control studies with information on the associations between the rs3761547, rs3761548, and rs3761549 FOXP3 SNPs and GD published before 01 May 2020 were identified in the PubMed, Embase, Web of Science, and China National Knowledge Infrastructure databases. Data from the studies were analyzed using RevMan version 5.3. Results Seven independent case–control studies including 4051 GD patients and 4569 controls were included in the meta-analysis. The overall pooled analysis indicated that FOXP3/rs3761548 and FOXP3/rs3761549 polymorphisms were significantly associated with GD susceptibility (rs3761548: A vs. C, odds ratio [OR] = 1.32, 95% confidence interval [CI] 1.05–1.67; rs3761549: TT vs. CC, OR = 1.98, 95%CI 1.49–2.65; (TT + TC) vs. CC, OR = 1.44, 95%CI 1.11–1.88). In contrast, the FOXP3/rs3761547 polymorphism was not associated with GD susceptibility. Subgroup analysis according to ethnicity showed that rs3761548 was associated with GD in Asians but not in Caucasians, whereas rs3761549 was associated in both Asians and Caucasians. Conclusion This meta-analysis demonstrated that FOXP3/rs3761548 and FOXP3/rs3761549 SNPs were significantly associated with susceptibility to GD, at least in Asian populations.

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Spiral artery blood flow during pregnancy: a systematic review and meta-analysis.

10.21203/rs.2.16611/v2 ◽

2019 ◽

Author(s):

Veronique Schiffer ◽

Laura Evers ◽

Sander de Haas ◽

Chahinda Ghossein ◽

Salwan Al-Nasiry ◽

...

Keyword(s):

Systematic Review ◽

Blood Flow ◽

Meta Analysis ◽

Resistance Index ◽

First Trimester ◽

Trophoblast Invasion ◽

Cochrane Library ◽

Second Trimester ◽

Spiral Artery ◽

Third Trimester

Abstract Background: Downstream remodeling of the spiral arteries (SpA) decreases utero-placental resistance drastically, allowing sustained and increased blood flow to the placenta at all circumstances. We systematically evaluated available reports to visualize adaptation of spiral arteries throughout pregnancy by ultra-sonographic measurements and evaluated when this process is completed.Methods: A systematic review and meta-analysis of spiral artery flow (pulsatility index (PI), resistance index (RI) and peak systolic velocity (PSV)) was performed. English articles were obtained from Pubmed, EMBASE and Cochrane Library and included articles were assessed on quality and risk of bias. Weighted means of Doppler indices were calculated using a random-effects model. Results: In healthy pregnancies, PI and RI decreased from 0.75 (95% CI: 0.67-0.83) and 0.49 (95% CI: 0.46-0.53) in the first trimester to 0.52 (95% CI: 0.48-0.56, p=0.003) and 0.40 (95% CI: 0.38-0.42, p=0.080) in the second trimester and to 0.49 (95% CI: 0.44-0.53, p=0.510) and 0.36 (95% CI: 0.35-0.37, p=0.307) in the third trimester, respectively. In parallel, PSV altered from 0.24 m/s (95% CI: 0.17-0.31 m/s) to 0.28 m/s (95% CI: 0.22-0.34 m/s, p=0.377) and to 0.25 m/s (95% CI: 0.21-0.28 m/s, p=0.919) in the three trimesters. In absence of second and third trimester Doppler data in complicated gestation, only a difference in PI was observed between complicated and healthy pregnancies during the first trimester (1.49 vs 0.76, p<0.001). Although individual studies have identified differences in PI between SpA located in the central part of the placental bed versus those located at its periphery, this meta-analysis could not confirm this (p=0.349).Conclusions: This review and meta-analysis concludes that an observed decrease of SpA PI and RI from the first towards the second trimester parallels the physiological trophoblast invasion converting SpA during early gestation, a process completed in the midst of the second trimester. Higher PI and RI were found in SpA of complicated pregnancies compared to healthy pregnancies, possibly reflecting suboptimal utero-placental circulation. Longitudinal studies examining comprehensively the predictive value of spiral artery Doppler for complicated pregnancies are yet to be carried out.

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Association between the TGF-β1 polymorphisms and chronic obstructive pulmonary disease: a meta-analysis

Bioscience Reports ◽

10.1042/bsr20170747 ◽

2017 ◽

Vol 37 (4) ◽

Cited By ~ 3

Author(s):

Ning Liao ◽

Hua Zhao ◽

Min-Li Chen ◽

Zheng-Fu Xie

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Pulmonary Disease ◽

Transforming Growth Factor ◽

Meta Analysis ◽

Transforming Growth Factor Β1 ◽

Chronic Obstructive ◽

Case Control Studies ◽

China National Knowledge Infrastructure ◽

Obstructive Pulmonary Disease ◽

Tgf Β1

It has been hypothesized that polymorphisms in the transforming growth factor-β1 (TGF-β1) gene on chromosome 19 modify the risk for chronic obstructive pulmonary disease (COPD). However, results from previous studies are contradictory. We therefore conducted a meta-analysis of published case–control studies on the association between five common TGF-β1 polymorphisms (rs1982073, rs1800469, rs2241712, rs6957, and rs2241718) and COPD risk. Data sources were Pubmed, Scopus, ISI Web of Science, China National Knowledge Infrastructure (CNKI), and Wanfang databases. Twelve studies including 6749 participants were reviewed and analyzed. For the TGF-β1 polymorphism rs1982073, the results indicted that the C allele was associated with decreased risk of COPD in Caucasians (odds ratio (OR) =0.79, 95% confidence interval (CI): 0.64–0.99, P=0.038) but not in Asians (OR =0.95, 95% CI: 0.71–1.28, P=0.741). No associations with COPD were identified for other polymorphisms evaluated in the present study including rs1800469 (T allele compared with C allele, OR =0.89, 95% CI: 0.77–1.02, P=0.099), rs2241712 (A allele compared with G allele, OR =1.03, 95% CI: 0.89–1.20, P=0.666), rs6957 (A allele compared with G allele, OR =1.14, 95% CI: 0.95–1.36, P=0.160), and rs2241718 (C allele compared with T allele, OR =0.95, 95% CI: 0.79–1.14, P=0.571). In conclusion, this meta-analysis showed that the C allele of rs1982073 was protective against COPD in Caucasians but not in Asians, whereas there was no association of rs1800469, rs2241712, rs6957, and rs2241718 with COPD.

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Modified Multiple Marker Aneuploidy Screening as a Primary Screening Test for Preeclampsia

10.21203/rs.3.rs-492997/v1 ◽

2021 ◽

Author(s):

Tianhua Huang ◽

H. Melanie Bedford ◽

Shamim Rashid ◽

Evasha Rasasakaram ◽

Megan Priston ◽

...

Keyword(s):

Preterm Birth ◽

Early Onset ◽

Biochemical Markers ◽

Gestational Hypertension ◽

First Trimester ◽

Second Trimester ◽

Aneuploidy Screening ◽

Maternal Characteristics ◽

Screening Performance ◽

Β Hcg

Abstract Background: Maternal biochemical markers used in multiple marker aneuploidy screening have been associated with adverse pregnancy outcomes. This study aims to assess if a combination of maternal characteristics and biochemical markers in the first and second trimesters can be used to screen for preeclampsia (PE), gestational hypertension and preterm birth. Methods: This case-control study used information on maternal characteristics and residual blood samples from pregnant women who have undergone multiple marker aneuploidy screening. The median multiple of the median (MoM) of first and second trimester biochemical markers in cases (women with PE, gestational hypertension and preterm birth) and controls were compared. Biochemical markers included pregnancy-associated plasma protein A (PAPP-A), placental growth factor (PlGF), human chorionic gonadotropin (hCG), alpha feto-protein (AFP), unconjugated estriol (uE3) and Inhibin A. Logistic regression analysis was used to estimate screening performance using different marker combinations. Screening performance was defined as detection rate (DR) and false positive rate (FPR). Preterm and early-onset preeclampsia PE were defined as women with PE delivered < 37 and < 34 weeks of gestation.Results: There were 147 pregnancies with PE (81 term, 49 preterm and 17 early-onset), 295 with gestational hypertension, and 166 preterm birth. Compared to controls, PE cases had significantly lower median MoM of PAPP-A (0.77 vs 1.10, p<0.0001), PlGF (0.76 vs 1.01, p<0.0001) and free-β hCG (0.81 vs. 0.98, p<0.001) in the first trimester along with PAPP-A (0.82 vs 0.99, p<0.01) and PlGF (0.75 vs 1.02, p<0.0001) in the second trimester. The lowest first trimester PAPP-A, PlGF and free β-hCG were seen in those with preterm and early-onset PE. At a 20% FPR, 67% of preterm and 76% of early-onset PE cases can be predicted using a combination of maternal characteristics with PAPP-A and PlGF in the first trimester.Conclusions: Maternal characteristics with first trimester PAPP-A and PlGF measured for aneuploidy screening provided reasonable accuracy in identifying women at risk of developing early onset PE, allowing triage of high-risk women for further investigation and risk-reducing therapy.

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Selenium Level in Patients with Vitiligo: A Meta-Analysis

BioMed Research International ◽

10.1155/2020/7580939 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7

Author(s):

Ting Dai ◽

Sun Xiaoying ◽

Xin Li ◽

Li Hongjin ◽

Zhou Yaqiong ◽

...

Keyword(s):

Subgroup Analysis ◽

Meta Analysis ◽

Selenium Level ◽

Serum Selenium ◽

Healthy Controls ◽

China National Knowledge Infrastructure ◽

Knowledge Infrastructure ◽

Significant Difference ◽

Comprehensive Search ◽

Caucasian Patients

Background. It has been reported that deficiency of selenium can cause autoimmune disease. This meta-analysis was aimed at evaluating whether there exits an association between selenium level and vitiligo. Methods. A comprehensive search was conducted on PubMed, Embase, China National Knowledge Infrastructure (CNKI), Wanfang Med Online, and China VIP databases from the inception to February 12, 2019. The main outcome was the standardized mean difference (SMD) with 95% confidence interval (CI) in serum selenium level between vitiligo patients and healthy controls. Results. A total of 8 studies with 305 vitiligo patients and 6156 healthy controls were included in this meta-analysis. The results showed that there was no significant difference in selenium level between vitiligo patients and healthy controls (SMD=0.481, 95%CI=−0.642 to 1.604, Z=0.840, P>0.05). Further subgroup analysis stratified by area revealed that Asian vitiligo patients had decreased selenium level, while that finding was not observed in Caucasian patients (Asian: SMD=−0.303, 95%CI=−0.603 to −0.004, P<0.05; Caucasian: SMD=0.957, 95%CI=−0.752 to 2.665, P>0.05). Conclusions. Although overall selenium level was similar between vitiligo patients and health controls, subgroup analysis showed decreased levels of selenium in Asian vitiligo patients. It may suggest a clinical tailored administration of selenium supplementation in Asian vitiligo patients.

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