Project description:This project is about an untargeted metabolomic analysis in samples that come from chronic lung allograft dysfunction disease patients.
Project description:As metabolic dysfunction-associated steatotic liver disease (MASLD) frequently co_x0002_occurs in patients with chronic hepatitis B (CHB), the interplay between these two common liver conditions remains largely unexplored. A recent study suggest that MASH comorbidity can reduce intrahepatic interferon pathway activity and macrophage gene signatures in HBeAg_x0002_negative chronic HBV (ENEG) patients, potentially contributing to persistent infection and fibrosis. However, it remains unclear whether this phenomenon also occurs in MASLD with CHB patients.
Project description:Diaphragm muscles in Chronic Obstructive Pulmonary Disease (COPD) patients undergo an adaptive fast to slow transformation that includes cellular adaptations. This project studies the signaling mechanisms responsible for this transformation. Keywords: other
Project description:The goal of this study was to investigate and correlate differential methylation and expression in cells from the target organ in non-infectious granulomatous lung diseases, specifically sarcoidosis and chronic beryllium disease (CBD). To that end, cells were collected from patients via bronchoalveolar lavage (BAL), and extracted nucleic acids were hybridized to genome-wide arrays. We conclude that there are many genes that are both differentially methylated and expressed in the BAL fluid of patients with granulomatous lung disease. We identified 2,726 differentially methylated CpGs mapping to 1,944 unique genes when comparing CBD patients to beryllium-sensitized (BeS) individuals without disease. 69% of these genes were also differentially expressed in CBD. Sarcoidosis patients exhibited directional consistency at many loci, but genome-wide significance was not achieved, likely due to heterogeneity in the patient population.
Project description:The goal of this study was to investigate and correlate differential methylation and expression in cells from the target organ in non-infectious granulomatous lung diseases, specifically sarcoidosis and chronic beryllium disease (CBD). To that end, cells were collected from patients via bronchoalveolar lavage (BAL), and extracted nucleic acids were hybridized to genome-wide arrays. We conclude that there are many genes that are both differentially methylated and expressed in the BAL fluid of patients with granulomatous lung disease. We identified 2,726 differentially methylated CpGs mapping to 1,944 unique genes when comparing CBD patients to beryllium-sensitized (BeS) individuals without disease. 69% of these genes were also differentially expressed in CBD. Sarcoidosis patients exhibited directional consistency at many loci, but genome-wide significance was not achieved, likely due to heterogeneity in the patient population.
Project description:The goal of this study was to investigate and correlate differential methylation and expression in cells from the target organ in non-infectious granulomatous lung diseases, specifically sarcoidosis and chronic beryllium disease (CBD). To that end, cells were collected from patients via bronchoalveolar lavage (BAL), and extracted nucleic acids were hybridized to genome-wide arrays. We conclude that there are many genes that are both differentially methylated and expressed in the BAL fluid of patients with granulomatous lung disease. We identified 2,726 differentially methylated CpGs mapping to 1,944 unique genes when comparing CBD patients to beryllium-sensitized (BeS) individuals without disease. 69% of these genes were also differentially expressed in CBD. Sarcoidosis patients exhibited directional consistency at many loci, but genome-wide significance was not achieved, likely due to heterogeneity in the patient population.
Project description:The goal of this study was to investigate and correlate differential methylation and expression in cells from the target organ in non-infectious granulomatous lung diseases, specifically sarcoidosis and chronic beryllium disease (CBD). To that end, cells were collected from patients via bronchoalveolar lavage (BAL), and extracted nucleic acids were hybridized to genome-wide arrays. We conclude that there are many genes that are both differentially methylated and expressed in the BAL fluid of patients with granulomatous lung disease. We identified 2,726 differentially methylated CpGs mapping to 1,944 unique genes when comparing CBD patients to beryllium-sensitized (BeS) individuals without disease. 69% of these genes were also differentially expressed in CBD. Sarcoidosis patients exhibited directional consistency at many loci, but genome-wide significance was not achieved, likely due to heterogeneity in the patient population.
Project description:Chronic obstructive pulmonary disease (COPD) is associated with airway inflammation and microbiota dysbiosis. However, the function of lung microbiome alteration in early COPD remains unclear. This study is the first to characterize the lower respiratory tract microbiota in early COPD patients via bronchoalveolar lavage fluid (BALF) samples. By using full-length 16S sequencing, we found that the lung microbiome of early COPD patients had lower bacterial richness and significant compositional differences than did that of the healthy smoker controls. Streptococcus was the most robustly distinguished genus in early COPD patients and was associated with decreased lung function and increased host local inflammation. Furthermore, a murine cigarette smoke model of early COPD revealed that Streptococcus mitis promotes the progression of early COPD. Single-cell transcriptomics revealed that Streptococcus mitis increased emphysematous destruction of the lung parenchyma in a mouse early COPD model by regulating the function of alveolar type II (AT2) cells and macrophages. Therefore, targeting the lower airway microbiota in combination with smoking cessation may be a potential therapeutic approach for early COPD.