Systematic review and meta-analysis of the papillomavirus prevalence in breast cancer fresh tissues

BACKGROUND: Although widely studied, the role of HPV in the genesis of breast carcinomas remains elusive due to the diversity of results across studies, possibly caused by the wide methodological heterogeneity, some of them with inadequate methods. OBJECTIVE: To verify the association between HPV and breast cancer through the meta-analysis of studies that used the best-recognized techniques for viral detection and tissue conservation. METHODS: A systematic review and meta-analysis restricted to studies that detected HPV by PCR in fresh and frozen tissue from breast cancer were conducted to obtain greater homogeneity. PubMed, Scopus, Science Direct, Cochrane Library, and SciELO were searched until December 14, 2019. Search terms included “breast cancer” and “HPV” without language restrictions. Eleven studies were included in the meta-analysis. The pooled relative risks and 95% confidence interval (95% CI) were calculated, and heterogeneity was assessed using the I-squared (I2). RESULTS: The selected studies had very low heterogeneity (2%). There is a 2.15 times higher combined relative risk (95% CI = 1.60-2.89) of detecting HPV in breast cancer than in cancer-free breast controls with a statistically significant p-value (p < 0.0001). CONCLUSION: Our data support the association of DNA-HPV with breast carcinomas. Further studies are needed to find out which breast cancer subtypes this association is most frequent.

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HPV infection and endometriosis: a systematic review and meta-analysis

Jornal Brasileiro de Doenças Sexualmente Transmissíveis ◽

10.5327/dst-2177-8264-201931406 ◽

2019 ◽

Vol 31 (4) ◽

pp. 138-142

Author(s):

Geilson Gomes de Oliveira ◽

José Eleutério ◽

Renata Mírian Nunes Eleutério

Keyword(s):

Systematic Review ◽

Bacterial Infections ◽

Meta Analysis ◽

Hpv Infection ◽

Cochrane Library ◽

Sexually Transmitted ◽

Unexposed Control ◽

Relative Risks ◽

Search Terms

Introduction: Recent research has focused on the role of persistent ascending bacterial infections and sexually transmitted infections (STI) as a factor associated to endometriosis. Indeed, some studies investigated the possible role of HPV in endometriosis, but this topic remains inconclusive. Objective:The present study aims to meta-analyze research that assessed the presence of HPV infection in patients with endometriosis. Methods: MEDLINE, Embase, Scopus, LILACS, Cochrane Library, and OpenGrey were searched until February 10th, 2020. Search terms included “endometriosis” and “HPV” without language restrictions. The combined relative risks and 95% confidence interval (95%CI) were calculated, and heterogeneity was assessed with I-square (I2 ). Results: Meta-analysis with low heterogeneity found a relative risk of twice as much in women exposed to HPV in relation to the unexposed control. Conclusion: Results indicate that HPV could be a risk factor for developing endometriosis.

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Clinical Theragnostic Relationship between Drug-Resistance Specific miRNA Expressions, Chemotherapeutic Resistance, and Sensitivity in Breast Cancer: A Systematic Review and Meta-Analysis

Cells ◽

10.3390/cells8101250 ◽

2019 ◽

Vol 8 (10) ◽

pp. 1250 ◽

Cited By ~ 6

Author(s):

Jayaraj ◽

Nayagam ◽

Kar ◽

Sathyakumar ◽

Mohammed ◽

...

Keyword(s):

Breast Cancer ◽

Systematic Review ◽

Drug Targets ◽

Meta Analysis ◽

Treatment Options ◽

Rank Correlation ◽

P Value ◽

Bibliographic Search ◽

Trim And Fill

Awareness of breast cancer has been increasing due to early detection, but the advanced disease has limited treatment options. There has been growing evidence on the role of miRNAs involved in regulating the resistance in several cancers. We performed a comprehensive systematic review and meta-analysis on the role of miRNAs in influencing the chemoresistance and sensitivity of breast cancer. A bibliographic search was performed in PubMed and Science Direct based on the search strategy, and studies published until December 2018 were retrieved. The eligible studies were included based on the selection criteria, and a detailed systematic review and meta-analysis were performed based on PRISMA guidelines. A random-effects model was utilised to evaluate the combined effect size of the obtained hazard ratio and 95% confidence intervals from the eligible studies. Publication bias was assessed with Cochran’s Q test, I2 statistic, Orwin and Classic fail-safe N test, Begg and Mazumdar rank correlation test, Duval and Tweedie trim and fill calculation and the Egger’s bias indicator. A total of 4584 potential studies were screened. Of these, 85 articles were eligible for our systematic review and meta-analysis. In the 85 studies, 188 different miRNAs were studied, of which 96 were upregulated, 87 were downregulated and 5 were not involved in regulation. Overall, 24 drugs were used for treatment, with doxorubicin being prominently reported in 15 studies followed by Paclitaxel in 11 studies, and 5 drugs were used in combinations. We found only two significant HR values from the studies (miR-125b and miR-4443) and our meta-analysis results yielded a combined HR value of 0.748 with a 95% confidence interval of 0.508–1.100; p-value of 0.140. In conclusion, our results suggest there are different miRNAs involved in the regulation of chemoresistance through diverse drug genetic targets. These biomarkers play a crucial role in guiding the effective diagnostic and prognostic efficiency of breast cancer. The screening of miRNAs as a theragnostic biomarker must be brought into regular practice for all diseases. We anticipate that our study serves as a reference in framing future studies and clinical trials for utilising miRNAs and their respective drug targets.

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Effects of Exercise on Cardiac Function Outcomes in Women Receiving Anthracycline or Trastuzumab Treatment for Breast Cancer: A Systematic Review and Meta-Analysis

Applied Sciences ◽

10.3390/app11188336 ◽

2021 ◽

Vol 11 (18) ◽

pp. 8336

Author(s):

Pedro Antunes ◽

Dulce Esteves ◽

Célia Nunes ◽

Anabela Amarelo ◽

José Fonseca-Moutinho ◽

...

Keyword(s):

Breast Cancer ◽

Systematic Review ◽

Cardiac Function ◽

Meta Analysis ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Cochrane Library ◽

Circulating Biomarkers ◽

Ventricular Ejection Fraction ◽

Secondary Outcomes

Background: we conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate the efficacy of exercise training on cardiac function and circulating biomarkers outcomes among women with breast cancer (BC) receiving anthracycline or trastuzumab-containing therapy. Methods: PubMed, EMBASE, Cochrane Library, Web of Science and Scopus were searched. The primary outcome was change on left ventricular ejection fraction (LVEF). Secondary outcomes included diastolic function, strain imaging and circulating biomarkers. Results: Four RCTs were included, of those three were conducted during anthracycline and one during trastuzumab, involving 161 patients. All trials provided absolute change in LVEF (%) after a short to medium-term of treatment exposure (≤6 months). Pooled data revealed no differences in LVEF in the exercise group versus control [mean difference (MD): 2.07%; 95% CI: −0.17 to 4.34]. Similar results were observed by pooling data from the three RCTs conducted during anthracycline. Data from trials that implemented interventions with ≥36 exercise sessions (n = 3) showed a significant effect in preventing LVEF decline favoring the exercise (MD: 3.25%; 95% CI: 1.20 to 5.31). No significant changes were observed on secondary outcomes. Conclusions: exercise appears to have a beneficial effect in mitigating LVEF decline and this effect was significant for interventions with ≥36 exercise sessions.

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Prognostic Role of miR-221 and miR-222 Expression in Cancer Patients: A Systematic Review and Meta-Analysis

Cancers ◽

10.3390/cancers11070970 ◽

2019 ◽

Vol 11 (7) ◽

pp. 970 ◽

Cited By ~ 5

Author(s):

Gloria Ravegnini ◽

Sarah Cargnin ◽

Giulia Sammarini ◽

Federica Zanotti ◽

Justo Lorenzo Bermejo ◽

...

Keyword(s):

Systematic Review ◽

Cancer Patients ◽

Meta Analysis ◽

Fine Tuning ◽

High Expression ◽

Cochrane Library ◽

Published Data ◽

Significant Heterogeneity ◽

Free Survival

Background: A wealth of evidence has shown that microRNAs (miRNAs) can modulate specific genes, increasing our knowledge on the fine-tuning regulation of protein expression. miR-221 and miR-222 have been frequently identified as deregulated across different cancer types; however, their prognostic significance in cancer remains controversial. In view of these considerations, we performed an updated systematic review and meta-analysis of published data investigating the effects of miR-221/222 on overall survival (OS) and other secondary outcomes among cancer patients. A systematic search of PubMed, Web of Knowledge, and Cochrane Library databases was performed. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were used to assess the strength of association. Results: Fifty studies, analyzing 6086 patients, were included in the systematic review. Twenty-five studies for miR-221 and 17 studies for miR-222 which assessed OS were included in the meta-analysis. High expression of miR-221 and miR-222 significantly predicted poor OS (HR: 1.48, 95% CI: 1.14–1.93, p = 0.003 and HR: 1.90, 95% CI: 1.43–2.54, p < 0.001, respectively). Subgroup analysis revealed that the finding on miR-221 was not as robust as the one on miR-222. Furthermore, high miR-222 expression was also associated with worse progression-free survival and disease-free survival pooled with recurrence-free survival. Conclusions: The meta-analysis demonstrated that high expression of miR-222 is associated with poor prognosis in cancer patients, whereas the significance of miR-221 remains unclear. More work is required to fully elucidate the role of miR-221 and miR-222 in cancer prognosis, particularly in view of the limitations of existing results, including the significant heterogeneity and limited number of studies for some cancers.

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Prognostic Role and Clinical Significance of Tumor-Infiltrating Lymphocyte (TIL) and Programmed Death Ligand 1 (PD-L1) Expression in Triple-Negative Breast Cancer (TNBC): A Systematic Review and Meta-Analysis Study

Diagnostics ◽

10.3390/diagnostics10090704 ◽

2020 ◽

Vol 10 (9) ◽

pp. 704 ◽

Cited By ~ 1

Author(s):

Parisa Lotfinejad ◽

Mohammad Asghari Jafarabadi ◽

Mahdi Abdoli Shadbad ◽

Tohid Kazemi ◽

Fariba Pashazadeh ◽

...

Keyword(s):

Breast Cancer ◽

Triple Negative Breast Cancer ◽

Prognostic Value ◽

Triple Negative ◽

Meta Analysis ◽

Disease Free Survival ◽

Cochrane Library ◽

P Value ◽

Programmed Death Ligand 1 ◽

Programmed Death

This meta-analysis aimed to evaluate the prognostic value of tumor-infiltrating lymphocytes (TILs) and programmed death-ligand 1 (PD-L1), their associations with the clinicopathological characteristics, and the association between their levels in patients with triple-negative breast cancer (TNBC). PubMed, EMBASE, Scopus, ProQuest, Web of Science, and Cochrane Library databases were searched to obtain the relevant papers. Seven studies with 1152 patients were included in this study. Like the level of TILs, there were no significant associations between PD-L1 expression and tumor size, tumor stage, lymph node metastasis, histological grade, and Ki67 (All p-values ≥ 0.05). Furthermore, there was no significant association between PD-L1 expression with overall survival (OS) and disease-free survival (DFS). In assessment of TILs and survival relationship, the results showed that a high level of TILs was associated with long-term OS (hazard ratios (HR) = 0.48, 95% CI: 0.30 to 0.77, p-value < 0.001) and DFS (HR = 0.53, 95% CI: 0.35 to 0.78, p-value < 0.001). The results displayed that tumoral PD-L1 expression was strongly associated with high levels of TILs in TNBC patients (OR = 8.34, 95% CI: 2.68 to 25.95, p-value < 0.001). In conclusion, the study has shown the prognostic value of TILs and a strong association between tumoral PD-L1 overexpression with TILs in TNBC patients.

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Impact of Common Spices on Glycemia in Individuals with Type 2 Diabetes: Systematic Review and Meta-Analysis of Clinical Trials

Current Developments in Nutrition ◽

10.1093/cdn/nzaa040_002 ◽

2020 ◽

Vol 4 (Supplement_2) ◽

pp. 2-2

Author(s):

Sepideh Alasvand ◽

William Bridges ◽

Vivian Haley-Zitlin

Keyword(s):

Systematic Review ◽

Type 2 Diabetes ◽

Blood Glucose ◽

Meta Analysis ◽

Cochrane Library ◽

P Value ◽

Significant Heterogeneity ◽

P Values ◽

Common Spices

Abstract Objectives This study examined the effect of common spices cardamom, ginger, cumin, curcuminoids and cinnamon on improving glucose levels in individuals with type 2 diabetes by systematic review and meta-analysis. Methods PubMed, FSTA, Web of Science, CINAHEL, MEDLINE and Cochrane Library database of systematic review databases were searched using keywords (fasting blood glucose OR hemoglobin A1c OR HbA1c OR homeostasis) AND (Ginger or zingiber or “zingiber officinale” or “cinnamomum zeylanicum” or “cinnamomum aromaticum” or “cinnamomum cassia” or “cinnamomum verum” or curcumin or turmeric or curcuminoids or “curcuma longa” or langas or “curcuma zedoarias” or turmeric) AND (diabetes* OR “diabetes mellitus” OR “type 2” OR “blood glucose” OR insulin* OR antidiabet* OR “glucose level”) up to January 2020. Statistical calculations used SAS software version 9.2 (SAS, Cary NC, USA). P-values < 0.05 were considered significant, P-values < 0.10 were considered weakly significant. Results Twenty-three studies with 2237 trial participants were selected out of a 512 study pool. Spices decreased FBG and HbA1c %. The estimated reduction in intervention change vs. control change is as follows: A1c was −0.264 mg/dl, 95% CI (−0.5503, −0.02), P value 0.069; FBG was −9.9370 mg/dl, 95% CI (−20.79, 0.91), P value 0.07. A significant heterogeneity was observed overall among the all studies, indicating that not all studies had similar levels of decrease. Conclusions A correlation between consumption of certain common spices and significant reduction in glycemic indices among diabetes patients was proved. Funding Sources Clemson University.

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Cardiac toxicity in breast cancer patients treated with dual HER2 blockade: A meta-analysis of randomized evidence.

Journal of Clinical Oncology ◽

10.1200/jco.2013.31.15_suppl.624 ◽

2013 ◽

Vol 31 (15_suppl) ◽

pp. 624-624

Author(s):

Antonis Valachis ◽

Andreas Demetrios Nearchou ◽

Nikolaos P. Polyzos ◽

Pehr Lind

Keyword(s):

Breast Cancer ◽

Adverse Events ◽

Randomized Trials ◽

Cardiac Toxicity ◽

Meta Analysis ◽

Left Ventricular ◽

Left Ventricular Ejection ◽

Cochrane Library ◽

P Value ◽

Cardiac Adverse Events

624 Background: The dual antiHER2 blockade has been shown promising results in patients with HER2-positive breast cancer. Whether this treatment strategy jeopardizes the risk for cardiac adverse events is unclear. We conducted a meta-analysis of randomized trials to investigate the risk of cardiac adverse events when a combination of anti-HER2 therapies is used. Methods: We searched Medline, the Cochrane library, as long as the electronic abstract databases of the major international congresses’ proceedings to identify randomized trials that evaluated the administration of anti-HER2 monotherapy (lapatinib or trastuzumab or pertuzumab) versus anti-HER2 combination therapy with or without chemotherapy in breast cancer. Study outcomes were the congestive heart failure (CHF) grade >/= 3 and left ventricular ejection fraction (LVEF) decline < 50% or more than 10% from baseline. We calculated pooled odds ratios (ORs) and 95% Confidence Intervals (CI) with the Peto method. Results: Six trials were considered eligible. Overall incidence results for CHF in the combined antiHER2 therapy and the antiHER2 monotherapy were 0.88 % (95% CI: 0.47% - 1.64%) and 1.49 % (95% CI: 0.98% - 2.23%). The incidence of LVEF decline was 3.1 % (95% CI: 2.2% – 4.4%) and 2.9% (95% CI: 2.1% - 4.1%) respectively. The OR of CHF was 0.58 (95% CI: 0.26-1.27, p-value= 0.17) while the OR of LVEF decline was 0.88 (95% CI: 0.53-1.48, p-value= 0.64). In subgroup analyses, there were no significant differences in CHF or LVEF decline among different treatment settings or types of antiHER2 therapy. Conclusions: This meta-analysis offers substantial randomized evidence from trials with well-defined cardiac evaluations that a dual anti-HER2 therapeutic approach does not increase the risk for cardiac toxicity.

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The role of LHRH agonists in ovarian function preservation in premenopausal women undergoing chemotherapy for early stage breast cancer: A systematic review and meta-analysis.

Journal of Clinical Oncology ◽

10.1200/jco.2015.33.15_suppl.1050 ◽

2015 ◽

Vol 33 (15_suppl) ◽

pp. 1050-1050

Author(s):

Rodrigo Ramella Munhoz ◽

Allan Andresson Lima Pereira ◽

Andre Deeke Sasse ◽

Paulo Marcelo Hoff ◽

Tiffany A. Traina ◽

...

Keyword(s):

Breast Cancer ◽

Systematic Review ◽

Ovarian Function ◽

Early Stage ◽

Meta Analysis ◽

Premenopausal Women ◽

Early Stage Breast Cancer ◽

Lhrh Agonists ◽

Function Preservation

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Prognostic Role of Tissue and Circulating MicroRNA-200c in Malignant Tumors: a Systematic Review and Meta-Analysis

Cellular Physiology and Biochemistry ◽

10.1159/000373943 ◽

2015 ◽

Vol 35 (3) ◽

pp. 1188-1200 ◽

Cited By ~ 14

Author(s):

Yingjie Shao ◽

Yiting Geng ◽

Wendong Gu ◽

Jin Huang ◽

Honglei Pei ◽

...

Keyword(s):

Systematic Review ◽

Malignant Tumors ◽

Early Stage ◽

Meta Analysis ◽

Cochrane Library ◽

Circulating Microrna ◽

Prognostic Role ◽

Altered Expression ◽

High Level

Background: Recently, many studies have shown that microRNAs (miRNA) exhibit altered expression in various cancers and may serve as prognostic biomarkers. We performed a systematic review and meta-analysis to evaluate the prognostic role of miR-200c expression in different cancers. Methods: Studies were recruited by searching PubMed, Embase and the Cochrane Library (last search update was May 2014) and assessed by further quality evaluation. Results: A total of 25 studies dealing with various carcinomas were identified for systematic review. Among them, 18 studies were ultimately included in the meta-analysis. Our results indicated that the expression of tissue miR-200c was not associated with OS and PFS in various carcinomas; however, downregulation of tissue miR-200c did predict poor OS of patients with stage I disease (HR=0.41, 95% CI 0.25-0.68, P=0.001). Furthermore, overexpression of blood miR-200c was significantly related to poor OS and PFS (HR=3.07 95% CI 1.58-5.96 P=0.001, HR=2.26 95% CI 1.66-3.08 P<0.001, respectively), especially in patients with advanced disease. Conclusion: This systematic review and meta-analysis clarified that low expression of miR-200c in primary tissue was significantly associated with poor survival in cancer patients at early stage, whereas a high level of blood miR-200c predicted poor prognosis in patients with advanced tumors.

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Breast self-examination practice and its determinants among women in Ethiopia: A systematic review and meta-analysis

PLoS ONE ◽

10.1371/journal.pone.0245252 ◽

2021 ◽

Vol 16 (1) ◽

pp. e0245252

Author(s):

Yordanos Gizachew Yeshitila ◽

Getachew Mullu Kassa ◽

Selamawit Gebeyehu ◽

Peter Memiah ◽

Melaku Desta

Keyword(s):

Breast Cancer ◽

Systematic Review ◽

Meta Analysis ◽

Regional Distribution ◽

Reproductive Age ◽

Cochrane Library ◽

African Countries ◽

Breast Self Examination ◽

Pooled Prevalence ◽

Self Examination

Background The survival rate from breast cancer is lowest in African countries and the distribution of breast self-examination practice of and its determinants are not well investigated in Ethiopia. Therefore, this systematic review and meta-analysis was designed to determine the pooled prevalence of breast self-examination and its associated factors among women in Ethiopia. Methods Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline was followed for this systematic review and meta-analysis. The databases used were; PUBMED, Cochrane Library, Google Scholar, CINAHL, African Journals Online, Dimensions and Summon per country online databases. Search terms used were; breast self-examination, breast cancer screening, early detection of breast cancer and Ethiopia. Joanna Briggs Institute Meta-Analysis of Statistics Assessment and Review Instrument (JBI-MAStARI) was used for critical appraisal of studies. The meta-analysis was conducted using STATA 15 software. The pooled meta-analysis was computed to present the pooled prevalence and relative risks (RRs) of the determinate factors with 95% confidence intervals (CIs). Results We identified 2,637 studies, of which, 40 articles (with 17,820 participants) were eligible for inclusion in the final meta-analysis. The pooled estimate of breast self-examination in Ethiopia was 36.72% (95% CI: 29.90, 43.53). The regional distribution breast self-examination ranged from 21.2% (95% CI: 4.49, 37.91) in Tigray to 61.5% (95% CI: 53.98, 69.02) in Gambela region. The lowest prevalence of breast self-examination was observed among the general population (20.43% (95% CI: 14.13, 26.72)). Women who had non-formal educational status (OR = 0.4 (95% CI: 0.21, 0.77)), family history of breast cancer (OR = 2.04 (95% CI: 1.23, 3.39)), good knowledge of breast self-examination (OR = 4.8 (95% CI: 3.03, 7.6)) and favorable attitude toward breast self-examination (OR = 2.75, (95% CI: 1.66, 4.55)) were significantly associated with practice of breast self-examination. Conclusions Only a third of women in Ethiopia practiced breast examination despite WHO guidelines advocating for this practice among all women of reproductive age. Intervention programs should address the factors that are associated with breast self-examination. Population specific programs are needed to promote breast self-examination.

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