Publications by authors named "Silan Gu"

Pyogenic liver abscess (PLA) is a serious infectious disease with high mortality. The aim of our study was to compare the efficacy of percutaneous needle aspiration (PNA) and percutaneous catheter drainage (PCD) for PLA and to assess risk factors for unfavorable prognosis. This retrospective study was performed between 2017 to 2019 in a Chinese tertiary care hospital.

View Article and Find Full Text PDF

The MASS cohort comprises 2000 ICU patients with severe pneumonia, covering community-acquired pneumonia, hospital-acquired pneumonia, and ventilator-associated pneumonia, sourced from 19 hospitals across 10 cities in three provinces. A wide array of samples including bronchoalveolar lavage fluid, sputum, feces, and whole blood are longitudinally collected throughout patients' ICU stays. The cohort study seeks to uncover the dynamics of lung and gut microbiomes and their associations with severe pneumonia and host susceptibility, integrating deep metagenomics and transcriptomics with detailed clinical data.

View Article and Find Full Text PDF

Background: Pyogenic liver abscess (PLA) is a potentially life-threatening intra-abdominal infection. We compared the clinical features, treatments, and prognoses of patients who had pyogenic liver abscess (KPPLA) and non- pyogenic liver abscess (non-KPPLA).

Methods: A retrospective analysis was used to compare the medical records of KPPLA and non-KPPLA patients with positive pus cultures at a single hospital in China from January 2017 to December 2019.

View Article and Find Full Text PDF

Close contact routes, including short-range airborne and large-droplet routes, play an important role in the transmission of SARS-CoV-2 in indoor environments. However, the exposure risk of such routes is difficult to quantify due to the lack of data on the close contact behavior of individuals. In this study, a digital wearable device, based on semi-supervised learning, was developed to automatically record human close contact behavior.

View Article and Find Full Text PDF

Background: Antibiotics are the first line of treatment for infectious diseases. However, their overuse can increase the spread of drug-resistant bacteria. The present study analyzed the impact of different types of antibiotics on the gut microbiome and cytokines level of mice.

View Article and Find Full Text PDF

Vancomycin is the preferred treatment for Clostridioides difficile infection (CDI) but has been associated with a high recurrence rate of CDI in treated patients. Fecal microbiota transplantation (FMT) has emerged as a remarkably successful treatment for recurrent CDI (rCDI). Herein, we present a mouse model of CDI to further define the changes in intestinal inflammation, flora, and metabolites following FMT versus vancomycin treatment and to find the potential therapy to restore colonization resistance.

View Article and Find Full Text PDF

is a common cause of nosocomial infection. Antibiotic-induced dysbiosis in the intestinal microbiota is a core cause of infection (CDI). plays an active role in maintaining gastrointestinal balance and might offer the protective effects on CDI as probiotics.

View Article and Find Full Text PDF

infection (CDI) is a common nosocomial infection and is an urgent threat to public health. Vancomycin is the preferred antibiotic treatment for CDI but is associated with recurrence. GG is an adjunctive treatment for gastroenteritis and diarrhea and exerts its effects by modulating the immune responses and repairing the intestinal barrier.

View Article and Find Full Text PDF

Patients with hepatic cirrhosis are more susceptible to infection (CDI) and colonization with (). Asymptomatic colonization is thought to predispose to subsequent CDI. However, the dynamic gut microbiota changes remain unclear.

View Article and Find Full Text PDF

Background: Through the comparison of the demographic, epidemiological, and clinical characteristics of hospital human influenza (influenza A (H1N1) pdm09, H3N2, and B)-related and hospitalized avian-origin influenza A (H7N9)-related viral pneumonia patients, find the different between them.

Methods: A retrospective study was conducted in hospitalized influenza-related viral pneumonia patients.

Results: Human influenza A-related patients in the 35-49-year-old group were more than those with B pneumonia patients (p = 0.

View Article and Find Full Text PDF

The role of host-microbiota interactions in primary biliary cholangitis (PBC) has received increased attention. However, the impact of PBC on the oral microbiota and contribution of the oral microbiota to PBC are unclear. In this study, thirty-nine PBC patients without other diseases and 37 healthy controls (HCs) were enrolled and tested for liver functions and haematological variables.

View Article and Find Full Text PDF

The relationship between gut microbes and COVID-19 or H1N1 infections is not fully understood. Here, we compared the gut mycobiota of 67 COVID-19 patients, 35 H1N1-infected patients and 48 healthy controls (HCs) using internal transcribed spacer (ITS) 3-ITS4 sequencing and analysed their associations with clinical features and the bacterial microbiota. Compared to HCs, the fungal burden was higher.

View Article and Find Full Text PDF

Liver fibrosis (LF) is a continuous wound healing process caused by numerous chronic hepatic diseases and poses a major threat to human health. Activation of hepatic stellate cells (HSCs) is a critical event in the development of hepatic fibrosis. Long non-coding RNAs (lncRNAs) that are involved in HSC activation, participate in the development of LF and are likely to be therapeutic targets for LF.

View Article and Find Full Text PDF

Background: Metabolism is critical for sustaining life, immunity and infection, but its role in COVID-19 is not fully understood.

Methods: Seventy-nine COVID-19 patients, 78 healthy controls (HCs) and 30 COVID-19-like patients were recruited in a prospective cohort study. Samples were collected from COVID-19 patients with mild or severe symptoms on admission, patients who progressed from mild to severe symptoms, and patients who were followed from hospital admission to discharge.

View Article and Find Full Text PDF

Although SARS-CoV-2 can invade the intestine, though its effect on digestion and absorption is not fully understood. In the present study, 56 COVID-19 patients and 47 age- and sex-matched healthy subjects were divided into a discovery cohort and a validation cohort. Blood, faeces and clinical information were collected from the patients in the hospital and at discharge.

View Article and Find Full Text PDF

Coronavirus disease 2019 (COVID-19) is a highly contagious infectious disease. Similar to H7N9 infection, pneumonia and cytokine storm are typical clinical manifestations of COVID-19. Our previous studies found that H7N9 patients had intestinal dysbiosis.

View Article and Find Full Text PDF

Background: Antibiotics play an important role in the treatment of infectious diseases. However, the overuse of antibiotics increases the spread of drug-resistant bacteria and causes dysbiosis of the intestinal microbiota. Few studies have addressed the longitudinal effects of antibiotics on the microbiome and host immunity.

View Article and Find Full Text PDF

Understanding the transmission mechanism of SARS-CoV-2 is a prerequisite to effective control measures. To investigate the potential modes of SARS-CoV-2 transmission, 21 COVID-19 patients from 12-47 days after symptom onset were recruited. We monitored the release of SARS-CoV-2 from the patients' exhaled breath and systematically investigated environmental contamination of air, public surfaces, personal necessities, and the drainage system.

View Article and Find Full Text PDF

Gut metabolites are products of the crosstalk between microbes and their host and play an important role in the occurrence, development, diagnosis, and treatment of autoimmune diseases. This work profiled the fecal metabolome of patients with systemic lupus erythematosus (SLE) using gas chromatography-mass spectrometry (GC-MS) and analyzed the potential roles of metabolites in the diagnosis and development of SLE. Fecal sample from 29 SLE patients without any other diseases and 30 healthy controls (HCs) were analyzed by metabolomics profiling.

View Article and Find Full Text PDF

Gut microbiota has been implicated in the pathogenesis of many autoimmune diseases. This is still an area of active research given that the role of gut microbiota on the primary immune thrombocytopenia (ITP) remains unclear. In this study, fecal samples of 30 untreated adult primary ITP patients and 29 healthy controls (HCs) were used to investigate the gut microbial community and metabolite profiles.

View Article and Find Full Text PDF

Background: Dietary fiber is effective for colorectal cancer (CRC) treatment. Interleukin-6 (IL-6) and its adaptors are potential targets for CRC therapy. Butyrate, a metabolite of dietary fiber, is a new, highly safe type of targeted drug.

View Article and Find Full Text PDF