Bidirectional two-sample Mendelian randomization study of atrial fibrillation and breast cancer.

Background: Observational studies have shown an association between Breast Cancer (BC) and Atrial Fibrillation (AF). However, due to confounding factors and reverse causality, the causal role between BC and AF remains unclear. In this study, bidirectional two-sample Mendelian randomization (MR) combined with meta-analysis was used to evaluate the causal association between BC and AF.

Association between fatty acids and female infertility: dual evidence from a cross-sectional study and Mendelian randomization analysis.

: Infertility poses a considerable threat to female reproductive health on a global scale. Dietary pattern, as a modifiable lifestyle factor, is frequently recommended as an important intervention for infertility-related diseases. Fatty acids play a crucial role in maintaining the health of the female reproductive system.

No causal association between serum vitamin D levels and bronchiectasis: A Mendelian randomization analysis.

Observational studies have reported an association between Vitamin D deficiency and an increased risk of bronchiectasis. This study aims to investigate the causal relationship between Vitamin D levels and bronchiectasis using a 2-sample Mendelian randomization (MR) analysis. Data from 2 genome-wide association studies (GWAS) based on European ancestry were analyzed: serum vitamin D levels (sample size = 441,291 [UK Biobank]) and bronchiectasis (sample size = 187,830 [cases = 1107, controls = 186,723; FinnGen]).

Investigating the causal effect of various metabolites on postherpetic neuralgia: a Mendelian randomization study.

Background: Common side effect of Herpes Zoster, postherpetic neuralgia (PHN), causes persistent pain that seriously affects quality of life. Lack of dependable biomarkers makes the clinical diagnosis and treatment of PHN difficult, so complicating the assessment of therapeutic efficacy. Blood metabolites are becoming more and more well known as significant disease markers.

Predicting psychiatric risk: IgG N-glycosylation traits as biomarkers for mental health.

Background: Growing evidence suggests that chronic inflammation, resulting from intricate immune system interactions, significantly contributes to the onset of psychiatric disorders. Observational studies have identified a link between immunoglobulin G (IgG) N-glycosylation and various psychiatric conditions, but the causality of these associations remains unclear.

Methods: Genetic variants for IgG N-glycosylation traits and psychiatric disorders were obtained from published genome-wide association studies.

Haploidentical Hematopoietic Stem Cell Transplantation in Pediatric Transfusion-Dependent Thalassemia: A Systematic Review and Meta-Analysis.

Haploidentical hematopoietic stem cell transplantation (haplo-HSCT) presents a promising therapeutic option for pediatric transfusion-dependent thalassemia, particularly in the scarcity of matched donors. Despite its potential, the comprehensive evaluation of this method through large-scale prospective studies remains lacking. This study aims to systematically summarize the efficacy and safety of haplo-HSCT in thalassemia, thereby providing further evidence-based insights for clinical practice.

Identification of potential drug targets for diabetic polyneuropathy through Mendelian randomization analysis.

Background: Diabetic polyneuropathy (DPN) is a common diabetes complication with limited treatment options. We aimed to identify circulating plasma proteins as potential therapeutic targets for DPN using Mendelian Randomization (MR).

Methods: The protein quantitative trait loci (pQTLs) utilized in this study were derived from seven previously published genome-wide association studies (GWASs) on plasma proteomics.

Bone biochemical markers, bone mineral density, and the risk of osteonecrosis of the femoral head: a Mendelian randomization study.

Background: Alterations in bone metabolism may play a significant role in the early stages of femoral head necrosis, yet the causal relationship remains unclear. This study utilizes a two-sample Mendelian randomization (MR) approach to explore the genetic causal links between biochemical markers of bone metabolism, bone mineral density, and the risk of femoral head necrosis.

Methods: This study utilizes publicly available genome-wide association study (GWAS) datasets, with exposure factors including biochemical bone markers (25OHD, calcium, and alkaline phosphatase) and bone mineral density (measured at the lumbar spine, heel, femoral neck, and total body).

Circulating inflammatory cytokines and the risk of cerebral small vessel disease: a bidirectional Mendelian randomization analysis.

Background: A correlation between inflammation and cerebral small vessel disease (CSVD) has been hypothesized by earlier observational research, while this correlation has not been well established. Considering the significant clinical value of this causality determination, Mendelian randomization (MR) was implemented to investigate the causality between inflammatory cytokines and CSVD radiological lesions.

Methods: Using the publicly available Genome-Wide Association Study (GWAS) datasets, a bidirectional two-sample MR analysis was employed to infer causality between 91 inflammatory cytokines and CSVD phenotypes [white matter hyperintensity (WHM), fractional anisotropy (FA), mean diffusivity (MD), cerebral microbleeds (CMBs), and lacunar stroke].

Mendelian randomization study on the association of circulating ketone bodies with lung cancer and respiratory diseases.

The liver produces various ketone bodies (KBs) including 3-Hydroxybutyrate (3-OHB), acetoacetate (AcAc), and acetone, with 3-OHB being the major component. Previous studies have shown that KBs protect against respiratory diseases; however, there is no evidence of a genetic link. To avoid biases existing in traditional observational studies, a two-sample Mendelian randomization (MR) analysis was carried out to investigate genetic causation and novel therapeutic uses for KBs.

Role of CD38 in mediating the effect of Bacillus on acute pancreatitis: a study of mediated Mendelian randomization.

Background: Some studies suggest a potential link between intestinal flora and acute pancreatitis (AP). However, the causal relationships between specific intestinal flora and AP, and the possible mediating role of immune cell traits, remain unclear.

Methods: A genome-wide association study (GWAS) involving 5,959 participants was conducted to identify genetic instrumental variables associated with 473 intestinal flora taxa.

Exploring Dietary Factors and Esophageal Adenocarcinoma: Insights From Mendelian Randomization Study.

Esophageal adenocarcinoma and diet are not well understood to be associated. We conducted Mendelian randomization analysis using 18 dietary factors as exposures (primarily including fruit consumption, vegetable consumption, alcohol consumption, meat consumption, tea intake, fish intake, etc.), with esophageal adenocarcinoma as the outcome.

Gut Microbiota's role in lipoma development: evidence from mendelian randomization.

Background: Lipoma, a benign tumor derived from mesenchymal tissue, significantly affects patients' physical and psychological wellbeing. Increasing evidence points to a strong link between the gut microbiome (GM) and lipoma incidence. This study utilizes Mendelian Randomization (MR) to assess the potential causal relationships between the GM and lipoma development.

The Association between Rheumatic Diseases and the Risk of Polycystic Ovary Syndrome: A Two-Sample Mendelian Randomization Analysis.

The association between rheumatic immune diseases and polycystic ovary syndrome (PCOS) remains elusive. The purpose of this study was to investigate the causal relationship between rheumatic immune diseases and the risk of PCOS through a two-sample Mendelian randomization (MR) analysis. In the assessment of exposure variables, we chose systemic lupus erythematosus (SLE), polymyositis (PM), and rheumatoid arthritis (RA) as representative rheumatic immune diseases, while PCOS was designated as the outcome of interest.

Potential causal associations between perfluoroalkyl substances exposure and adverse pregnancy outcomes: A bidirectional two-sample mendelian randomization study.

Maternal exposure to per- and polyfluoroalkyl substances (PFASs) has been linked to adverse pregnancy outcomes (APOs). Nonetheless, the genetic causality underlying this association remains unknown. This research employed a bidirectional two-sample Mendelian randomization (MR) to investigate the potential causal associations between PFASs exposure and APOs risk.

Causal association of serum vitamin D levels with urolithiasis: a bidirectional two-sample Mendelian randomization study.

Background: In light of inconsistent evidence from previous observational studies regarding the correlation between serum vitamin D levels and urolithiasis, this study aimed to investigate the genome-wide causal association between genetically predicted serum 25(OH)D levels and urolithiasis using the Mendelian randomization (MR) approach.

Methods: In this study, we utilized genome-wide association studies (GWAS) summary statistics from the UK Biobank and SUNLIGHT consortium for serum vitamin D levels, as well as urolithiasis data from FinnGen. We employed bidirectional two-sample MR analysis to evaluate potential causal relationships.

Causal effect of gut microbiota on venous thromboembolism: a two-sample mendelian randomization study.

Background: The gut microbiota of venous thromboembolism (VTE) patients exhibited significant alterations. However, the causal relationship between gut microbiota and VTE has not been fully understood. This study aimed to assess the causal relationship between gut microbiota and the risk of VTE using a two-sample Mendelian Randomization (MR) study.

Causal roles of dietary structure and types on prostate cancer risk: A mendelian randomization study.

Background: Numerous observational studies have reported a strong link between dietary habits and the risk of prostate cancer. However, these studies are susceptible to confounding factors. To address this question, we conducted a two-sample Mendelian randomization (MR) study to explore the causal relationship between dietary habits and prostate cancer.

A Mendelian Randomization Study about Causal Associations between Tofu Consumption and Stroke as well as Related Subtypes.

Objective: Consuming soy in the diet is beneficial for health, and tofu possess the richest source of dietary soy. However, the specific association with stroke and related subtypes remains controversial. In this study, the genetic causal relationship among tofu and stroke as well as the subtypes was investigated by utilizing the data in a number of genome-wide association study (GWAS) based on population.

Safety and efficacy of curcumin in the treatment of ulcerative colitis: An updated systematic review and meta-analysis of randomized controlled trials.

Objective: This study aims to systematically evaluate the safety and efficacy of curcumin as an adjunctive treatment for patients with ulcerative colitis (UC) and to assess the methodological quality of the published studies.

Methods: A comprehensive search was conducted in PubMed, Embase, and CENTRAL databases for randomized controlled trials published up to August 18, 2023. Two independent reviewers screened studies based on predefined criteria.

Hemoglobin levels in red blood cells and risk of colorectal cancer: A causal investigation based on Mendelian randomization.

Mean corpuscular hemoglobin (MCH) is a critical parameter in red blood cells, associated with various diseases. While studies suggest a potential link between MCH levels and colorectal cancer (CRC), observational studies are insufficient to establish causality directly. This study utilized a 2-sample Mendelian randomization (MR) approach to investigate the genetic causal relationship between MCH and colorectal cancer (CRC).