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1.
Brief Bioinform ; 25(3)2024 Mar 27.
Article in English | MEDLINE | ID: mdl-38557678

ABSTRACT

Disease ontologies facilitate the semantic organization and representation of domain-specific knowledge. In the case of prostate cancer (PCa), large volumes of research results and clinical data have been accumulated and needed to be standardized for sharing and translational researches. A formal representation of PCa-associated knowledge will be essential to the diverse data standardization, data sharing and the future knowledge graph extraction, deep phenotyping and explainable artificial intelligence developing. In this study, we constructed an updated PCa ontology (PCAO2) based on the ontology development life cycle. An online information retrieval system was designed to ensure the usability of the ontology. The PCAO2 with a subclass-based taxonomic hierarchy covers the major biomedical concepts for PCa-associated genotypic, phenotypic and lifestyle data. The current version of the PCAO2 contains 633 concepts organized under three biomedical viewpoints, namely, epidemiology, diagnosis and treatment. These concepts are enriched by the addition of definition, synonym, relationship and reference. For the precision diagnosis and treatment, the PCa-associated genes and lifestyles are integrated in the viewpoint of epidemiological aspects of PCa. PCAO2 provides a standardized and systematized semantic framework for studying large amounts of heterogeneous PCa data and knowledge, which can be further, edited and enriched by the scientific community. The PCAO2 is freely available at https://bioportal.bioontology.org/ontologies/PCAO, http://pcaontology.net/ and http://pcaontology.net/mobile/.


Subject(s)
Biological Ontologies , Prostatic Neoplasms , Humans , Male , Artificial Intelligence , Semantics , Prostatic Neoplasms/genetics
2.
Nat Methods ; 19(12): 1642-1652, 2022 12.
Article in English | MEDLINE | ID: mdl-36357694

ABSTRACT

The early stages of the virus-cell interaction have long evaded observation by existing microscopy methods due to the rapid diffusion of virions in the extracellular space and the large three-dimensional cellular structures involved. Here we present an active-feedback single-particle tracking method with simultaneous volumetric imaging of the live cell environment called 3D-TrIm to address this knowledge gap. 3D-TrIm captures the extracellular phase of the infectious cycle in what we believe is unprecedented detail. We report what are, to our knowledge, previously unobserved phenomena in the early stages of the virus-cell interaction, including skimming contact events at the millisecond timescale, orders of magnitude change in diffusion coefficient upon binding and cylindrical and linear diffusion modes along cellular protrusions. Finally, we demonstrate how this method can move single-particle tracking from simple monolayer culture toward more tissue-like conditions by tracking single virions in tightly packed epithelial cells. This multiresolution method presents opportunities for capturing fast, three-dimensional processes in biological systems.


Subject(s)
Imaging, Three-Dimensional , Viruses , Imaging, Three-Dimensional/methods , Microscopy/methods , Single Molecule Imaging , Cell Communication
3.
EMBO Rep ; 24(10): e56948, 2023 Oct 09.
Article in English | MEDLINE | ID: mdl-37672005

ABSTRACT

The maintenance of lysosome homeostasis is crucial for cell growth. Lysosome-dependent degradation and metabolism sustain tumor cell survival. Here, we demonstrate that CCDC50 serves as a lysophagy receptor, promoting tumor progression and invasion by controlling lysosomal integrity and renewal. CCDC50 monitors lysosomal damage, recognizes galectin-3 and K63-linked polyubiquitination on damaged lysosomes, and specifically targets them for autophagy-dependent degradation. CCDC50 deficiency causes the accumulation of ruptured lysosomes, impaired autophagic flux, and superfluous reactive oxygen species, consequently leading to cell death and tumor suppression. CCDC50 expression is associated with malignancy, progression to metastasis, and poor overall survival in human melanoma. Targeting CCDC50 suppresses tumor growth and lung metastasis, and enhances the effect of BRAFV600E inhibition. Thus, we demonstrate critical roles of CCDC50-mediated clearance of damaged lysosomes in supporting tumor growth, hereby identifying a potential therapeutic target of melanoma.

4.
J Transl Med ; 22(1): 62, 2024 01 16.
Article in English | MEDLINE | ID: mdl-38229160

ABSTRACT

Metastasis is the leading cause of high mortality in colorectal cancer (CRC), which is not only driven by changes occurring within the tumor cells, but is also influenced by the dynamic interaction between cancer cells and components in the tumor microenvironment (TME). Currently, the exploration of TME remodeling and its impact on CRC metastasis has attracted increasing attention owing to its potential to uncover novel therapeutic avenues. Noteworthy, emerging studies suggested that tumor-associated macrophages (TAMs) within the TME played important roles in CRC metastasis by secreting a variety of cytokines, chemokines, growth factors and proteases. Moreover, TAMs are often associated with poor prognosis and drug resistance, making them promising targets for CRC therapy. Given the prognostic and clinical value of TAMs, this review provides an updated overview on the origin, polarization and function of TAMs, and discusses the mechanisms by which TAMs promote the metastatic cascade of CRC. Potential TAM-targeting techniques for personalized theranostics of metastatic CRC are emphasized. Finally, future perspectives and challenges for translational applications of TAMs in CRC development and metastasis are proposed to help develop novel TAM-based strategies for CRC precision medicine and holistic healthcare.


Subject(s)
Colonic Neoplasms , Colorectal Neoplasms , Humans , Tumor-Associated Macrophages/metabolism , Tumor-Associated Macrophages/pathology , Macrophages/metabolism , Colonic Neoplasms/pathology , Cytokines/metabolism , Prognosis , Tumor Microenvironment , Colorectal Neoplasms/pathology
5.
J Transl Med ; 22(1): 253, 2024 03 08.
Article in English | MEDLINE | ID: mdl-38459561

ABSTRACT

Tobacco pollutants are prevalent in the environment, leading to inadvertent exposure of pregnant females. Studies of these pollutants' toxic effects on embryonic development have not fully elucidated the potential underlying mechanisms. Therefore, in this study, we aimed to investigate the developmental toxicity induced by cigarette smoke extract (CSE) at concentrations of 0.25, 1, and 2.5% using a zebrafish embryo toxicity test and integrated transcriptomic analysis of microRNA (miRNA) and messenger RNA (mRNA). The findings revealed that CSE caused developmental toxicity, including increased mortality and decreased incubation rate, in a dose-dependent manner. Moreover, CSE induced malformations and apoptosis, specifically in the head and heart of zebrafish larvae. We used mRNA and miRNA sequencing analyses to compare changes in the expression of genes and miRNAs in zebrafish larvae. The bioinformatics analysis indicates that the mechanism underlying CSE-induced developmental toxicity was associated with compromised genetic material damage repair, deregulated apoptosis, and disturbed lipid metabolism. The enrichment analysis and RT-qPCR show that the ctsba gene plays a crucial function in embryo developmental apoptosis, and the fads2 gene mainly regulates lipid metabolic toxicity. The results of this study improve the understanding of CSE-induced developmental toxicity in zebrafish embryos and contribute insights into the formulation of novel preventive strategies against tobacco pollutants during early embryonic development.


Subject(s)
Environmental Pollutants , MicroRNAs , Animals , Female , Zebrafish/genetics , Zebrafish/metabolism , Embryo, Nonmammalian/metabolism , MicroRNAs/genetics , MicroRNAs/metabolism , RNA, Messenger/genetics , RNA, Messenger/metabolism , Environmental Pollutants/metabolism , Environmental Pollutants/pharmacology
6.
Cardiovasc Diabetol ; 23(1): 222, 2024 Jun 26.
Article in English | MEDLINE | ID: mdl-38926737

ABSTRACT

BACKGROUND: Previous studies have shown that an elevated triglyceride-glucose (TyG) index was associated with all-cause mortality in both general adult individuals and critically ill adult patients. However, the relationship between the TyG index and clinical prognosis in pediatric patients admitted to the intensive care unit (ICU) remains unknown. We aimed to investigate the association of the TyG index with in-hospital all-cause mortality in critically ill pediatric patients. METHODS: A total of 5706 patients in the Pediatric Intensive Care database were enrolled in this study. The primary outcome was 30-day in-hospital all-cause mortality, and secondary outcome was 30-day in-ICU all-cause mortality. The restricted cubic spline (RCS) curves and two-piecewise multivariate Cox hazard regression models were performed to explore the relationship between the TyG index and outcomes. RESULTS: The median age of the study population was 20.5 [interquartile range (IQR): 4.8, 63.0] months, and 3269 (57.3%) of the patients were male. The mean TyG index level was 8.6 Ā± 0.7. A total of 244 (4.3%) patients died within 30Ā days of hospitalization during a median follow-up of 11 [7, 18] days, and 236 (4.1%) patients died in ICU within 30Ā days of hospitalization during a median follow-up of 6 [3, 11] days. The RCS curves indicated a U-shape association between the TyG index and 30-day in-hospital and in-ICU all-cause mortality (both P values for non-linear < 0.001). The risk of 30-day in-hospital all-cause mortality was negatively correlated with the TyG index until it bottoms out at 8.6 (adjusted hazard ratio [HR], 0.72, 95% confidence interval [CI] 0.55-0.93). However, when the TyG index was higher than 8.6, the risk of primary outcome increased significantly (adjusted HR, 1.51, 95% CI 1.16-1.96]). For 30-day in-ICU all-cause mortality, we also found a similar relationship (TyG < 8.6: adjusted HR, 0.75, 95% CI 0.57-0.98; TyG ≥ 8.6: adjusted HR, 1.42, 95% CI 1.08-1.85). Those results were consistent in subgroups and various sensitivity analysis. CONCLUSIONS: Our study showed that the association between the TyG index and 30-day in-hospital and in-ICU all-cause mortality was nonlinear U-shaped, with a cutoff point at the TyG index of 8.6 in critically ill pediatric patients. Our findings suggest that the TyG index may be a novel and important factor for the short-term clinical prognosis in pediatric patients.


Subject(s)
Biomarkers , Blood Glucose , Cause of Death , Critical Illness , Databases, Factual , Hospital Mortality , Intensive Care Units, Pediatric , Triglycerides , Humans , Male , Critical Illness/mortality , Female , Retrospective Studies , Blood Glucose/metabolism , Triglycerides/blood , Risk Factors , Infant , Child, Preschool , Time Factors , Risk Assessment , Biomarkers/blood , Prognosis , Age Factors , Child , Predictive Value of Tests , Child Mortality
7.
Plant Cell ; 33(10): 3235-3249, 2021 10 11.
Article in English | MEDLINE | ID: mdl-34338800

ABSTRACT

Protein S-acylation is an important post-translational modification in eukaryotes, regulating the subcellular localization, trafficking, stability, and activity of substrate proteins. The dynamic regulation of this reversible modification is mediated inversely by protein S-acyltransferases and de-S-acylation enzymes, but the de-S-acylation mechanism remains unclear in plant cells. Here, we characterized a group of putative protein de-S-acylation enzymes in Arabidopsis thaliana, including 11 members of Alpha/Beta Hydrolase Domain-containing Protein 17-like acyl protein thioesterases (ABAPTs). A robust system was then established for the screening of de-S-acylation enzymes of protein substrates in plant cells, based on the effects of substrate localization and confirmed via the protein S-acylation levels. Using this system, the ABAPTs, which specifically reduced the S-acylation levels and disrupted the plasma membrane localization of five immunity-related proteins, were identified respectively in Arabidopsis. Further results indicated that the de-S-acylation of RPM1-Interacting Protein 4, which was mediated by ABAPT8, resulted in an increase of cell death in Arabidopsis and Nicotiana benthamiana, supporting the physiological role of the ABAPTs in plants. Collectively, our current work provides a powerful and reliable system to identify the pairs of plant protein substrates and de-S-acylation enzymes for further studies on the dynamic regulation of plant protein S-acylation.


Subject(s)
Arabidopsis/enzymology , High-Throughput Screening Assays/instrumentation , Hydrolases/chemistry , Plant Cells/enzymology , Plant Proteins/analysis , Acylation
8.
BMC Cancer ; 24(1): 650, 2024 May 27.
Article in English | MEDLINE | ID: mdl-38802739

ABSTRACT

OBJECTIVE: This study aimed to explore the effect of CD276 expression on the sunitinib sensitivity of clear cell renal cell carcinoma (ccRCC) cell and animal models and the potential mechanisms involved. METHODS: CD276 expression levels of ccRCC and normal samples were analyzed via online databases and real-time quantitative PCR (RT-qPCR). CD276 was knocked down in ccRCC cell models (sunitinib-resistant 786-O/R cells and sunitinib-sensitive 786-O cells) using shRNA transfection, and the cells were exposed to a sunitinib (2 ĀµM) environment. Cells proliferation was then analyzed using MTT assay and colony formation experiment. Alkaline comet assay, immunofluorescent staining, and western blot experiments were conducted to assess the DNA damage repair ability of the cells. Western blot was also used to observe the activation of FAK-MAPK pathway within the cells. Finally, a nude mouse xenograft model was established and the nude mice were orally administered sunitinib (40Ā mg/kg/d) to evaluate the in vivo effects of CD276 knockdown on the therapeutic efficacy of sunitinib against ccRCC. RESULTS: CD276 was significantly upregulated in both ccRCC clinical tissue samples and cell models. In vitro experiments showed that knocking down CD276 reduced the survival rate, IC50 value, and colony-forming ability of ccRCC cells. Knocking down CD276 increased the comet tail moment (TM) values and ƎĀ³H2AX foci number, and reduced BRCA1 and RAD51 protein levels. Knocking down CD276 also decreased the levels of p-FAK, p-MEK, and p-ERK proteins. CONCLUSION: Knocking down CD276 effectively improved the sensitivity of ccRCC cell and animal models to sunitinib treatment.


Subject(s)
Antineoplastic Agents , B7 Antigens , Carcinoma, Renal Cell , Drug Resistance, Neoplasm , Kidney Neoplasms , Sunitinib , Animals , Humans , Male , Mice , Antineoplastic Agents/therapeutic use , B7 Antigens/metabolism , Carcinoma, Renal Cell/drug therapy , Carcinoma, Renal Cell/genetics , Cell Line, Tumor , Disease Models, Animal , DNA Repair , Gene Knockdown Techniques , Kidney Neoplasms/drug therapy , Kidney Neoplasms/genetics , MAP Kinase Signaling System , Mice, Inbred BALB C , Sunitinib/therapeutic use , Specific Pathogen-Free Organisms
9.
Am J Nephrol ; 55(1): 25-36, 2024.
Article in English | MEDLINE | ID: mdl-37963441

ABSTRACT

INTRODUCTION: Rituximab has been proven effective and safe in pediatric patients with frequently relapsing or steroid-dependent nephrotic syndrome (FR/SDNS). We aimed to analyze the efficacy and safety of rituximab in adult FR/SDNS patients with minimal change disease (MCD) and focal segmental glomerulosclerosis (FSGS). METHODS: A retrospective cohort study at three nephrology centers in China included adult FR/SDNS patients with biopsy-proven MCD or FSGS. Primary outcomes were relapse frequency and first relapse-free survival time. Adverse events were well recorded, and logistic regression analyses were used to investigate the risk factors of relapse. RESULTS: Eighty-one patients (age, 25.0 years; interquartile range, 20.0-40.5; 67% males; 82.7% MCD) received an average rituximab dose of 1,393.8 Ā± 618.7 mg/2 years during the 2-year follow-up period. The relapse frequency, calculated as the ratio of relapse times to follow-up years, significantly decreased after rituximab treatment (0.04 [0.00, 0.08] vs. 1.71 [1.00, 2.45], p < 0.001). The first relapse-free survival time was 16.7 Ā± 8.0 months. Fifty-seven patients (70.4%) achieved cessation of corticosteroids and immunosuppressants within 3 months after the first rituximab infusion. Adverse events were mostly mild, and no severe treatment-related adverse events were observed. Low serum albumin level before rituximab and high CD56+CD16+ natural killer cell count after rituximab were independent risk factors of relapse within 2 years after rituximab treatment. CONCLUSION: Rituximab was proven an effective and safe treatment option for adult FR/SDNS patients with MCD or FSGS in maintaining disease remission and minimizing corticosteroid exposure.


Subject(s)
Glomerulosclerosis, Focal Segmental , Nephrosis, Lipoid , Nephrotic Syndrome , Male , Adult , Humans , Child , Female , Rituximab/adverse effects , Glomerulosclerosis, Focal Segmental/complications , Glomerulosclerosis, Focal Segmental/drug therapy , Retrospective Studies , Nephrotic Syndrome/drug therapy , Nephrotic Syndrome/chemically induced , Nephrosis, Lipoid/drug therapy , Nephrosis, Lipoid/chemically induced , Immunosuppressive Agents/adverse effects , Recurrence , Chronic Disease , Treatment Outcome
10.
Cancer Control ; 31: 10732748241250181, 2024.
Article in English | MEDLINE | ID: mdl-38669187

ABSTRACT

OBJECTIVE: This study aimed to explore the relationship between CD276 and clear cell renal carcinoma (ccRCC) and assess the diagnostic value of CD276 in ccRCC. METHODS: Expression levels of CD276 in ccRCC and para-cancer tissues were compared and analyzed retrospectively using data obtained from TCGA and GEO databases. The clinical data was analyzed prospectively. Immunohistochemistry and RT-PCR analyses were used to analyze the expression of CD276 at the mRNA and protein levels. These analyses compared the expression between ccRCC tissues and para-cancer tissues obtained from 70 patients with ccRCC. Next, ELISA was used to analyze peripheral blood samples from 70 patients with ccRCC and 72 healthy individuals, facilitating the differentiation of ccRCC patients from normal controls. Finally, we utilized the Kaplan-Meier method to generate ROC curves for assessing the diagnostic value of CD276 for ccRCC. RESULTS: Analysis of TCGA and GEO data revealed that the mRNA expression of CD276 was higher in ccRCC tissues than in para-cancer tissues (P < .05). Clinical validation using IHC and RT-PCR confirmed that the expression of CD276 was higher in ccRCC tissues than in para-cancer tissues, both at the mRNA and protein levels (P < .05). ELISA demonstrated that the expression of CD276 was higher in ccRCC patients than in normal individuals, and patients with a higher pathological grade showed higher expression of CD276 in the peripheral blood than those with a lower pathological grade (P < .05). ROC curves drawn from the above three datasets demonstrated that CD276 had a high diagnostic value for ccRCC (AUC = .894, .795, .938, respectively). CONCLUSION: The expression of CD276 was higher in ccRCC tissues and positively associated with the pathological grade. Therefore, CD276 may serve as a molecular biomarker for ccRCC prediction.


Subject(s)
B7 Antigens , Biomarkers, Tumor , Carcinoma, Renal Cell , Computational Biology , Kidney Neoplasms , Humans , Carcinoma, Renal Cell/diagnosis , Carcinoma, Renal Cell/genetics , Carcinoma, Renal Cell/blood , Carcinoma, Renal Cell/pathology , Biomarkers, Tumor/blood , Biomarkers, Tumor/genetics , B7 Antigens/genetics , B7 Antigens/blood , Male , Female , Kidney Neoplasms/diagnosis , Kidney Neoplasms/blood , Kidney Neoplasms/genetics , Kidney Neoplasms/pathology , Computational Biology/methods , Middle Aged , Retrospective Studies , ROC Curve , Aged , Gene Expression Regulation, Neoplastic , Prognosis , RNA, Messenger/genetics , RNA, Messenger/blood , Case-Control Studies
11.
EMBO Rep ; 23(5): e54453, 2022 05 04.
Article in English | MEDLINE | ID: mdl-35343634

ABSTRACT

The NLRP3-directed inflammasome complex is crucial for the host to resist microbial infection and monitor cellular damage. However, the hyperactivation of NLRP3 inflammasome is implicated in pathogenesis of inflammatory diseases, including inflammatory bowel disease (IBD). Autophagy and autophagy-related genes are closely linked to NLRP3-mediated inflammation in these inflammatory disorders. Here, we report that CCDC50, a novel autophagy cargo receptor, negatively regulates NLRP3 inflammasome assembly and suppresses the cleavage of pro-caspase-1 and interleukin 1Ɵ (IL-1Ɵ) release by delivering NLRP3 for autophagic degradation. Transcriptome analysis showed that knockdown of CCDC50 results in upregulation of signaling pathways associated with autoinflammatory diseases. CCDC50 deficiency leads to enhanced proinflammatory cytokine response triggered by a wide range of endogenous and exogenous NLRP3 stimuli. Ccdc50-deficient mice are more susceptible to dextran sulfate (DSS)-induced colitis and exhibit more severe gut inflammation with elevated NLRP3 inflammasome activity. These results illustrate the physiological significance of CCDC50 in the pathogenicity of inflammatory diseases, suggesting protective roles of CCDC50 in keeping gut inflammation under control.


Subject(s)
Inflammasomes , NLR Family, Pyrin Domain-Containing 3 Protein , Animals , Autophagy , Dextran Sulfate/toxicity , Inflammasomes/genetics , Inflammation , Interleukin-1beta/genetics , Interleukin-1beta/metabolism , Mice , Mice, Inbred C57BL , NLR Family, Pyrin Domain-Containing 3 Protein/genetics
12.
CMAJ ; 196(27): E931-E939, 2024 Aug 11.
Article in English | MEDLINE | ID: mdl-39134317

ABSTRACT

BACKGROUND: Hepatitis B virus (HBV) infection is a common cause of liver-related morbidity and mortality. Evidence suggests that angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) decrease liver fibrosis, an intermediate step between liver injury and hepatocellular carcinoma (HCC). Our aim was to investigate the association between the use of ACEIs and ARBs on incident HCC and liver-related mortality among patients with HBV infection. METHODS: We conducted a population-based study on a new-user cohort of patients seen at 24 hospitals across China. We included adult patients with HBV infection who started ACEIs or ARBs (ACEIs/ARBs), or calcium channel blockers or thiazide diuretics (CCBs/THZs) from January 2012 to December 2022. The primary outcome was incident HCC; secondary outcomes were liver-related mortality and new-onset cirrhosis. We used propensity score matching and Cox proportional hazards regression to estimate the hazard ratio (HR) and 95% confidence intervals (CIs) of study outcomes. RESULTS: Among 32 692 eligible patients (median age 58 [interquartile range (IQR) 48-68] yr, and 18 804 male [57.5%]), we matched 9946 pairs of patients starting ACEIs/ARBs or CCBs/THZs. During a mean follow-up of 2.3 years, the incidence rate of HCC per 1000 person-years was 4.11 and 5.94 among patients who started ACEIs/ARBs and CCBs/THZs, respectively, in the matched cohort. Use of ACEIs/ARBs was associated with lower risks of incident HCC (HR 0.66, 95% CI 0.50-0.86), liver-related mortality (HR 0.77, 95% CI 0.64-0.93), and new-onset cirrhosis (HR 0.81, 95% CI 0.70-0.94). INTERPRETATION: In this cohort of patients with HBV infection, new users of ACEIs/ARBs had a lower risk of incident HCC, liver-related mortality, and new-onset cirrhosis than new users of CCBs/THZs.


Subject(s)
Angiotensin Receptor Antagonists , Angiotensin-Converting Enzyme Inhibitors , Carcinoma, Hepatocellular , Liver Neoplasms , Humans , Carcinoma, Hepatocellular/epidemiology , Male , Liver Neoplasms/epidemiology , Female , Middle Aged , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Angiotensin-Converting Enzyme Inhibitors/adverse effects , Aged , Angiotensin Receptor Antagonists/therapeutic use , Angiotensin Receptor Antagonists/adverse effects , China/epidemiology , Hepatitis B/complications , Liver Cirrhosis , Incidence , Hepatitis B, Chronic/complications , Hepatitis B, Chronic/drug therapy , Propensity Score , Proportional Hazards Models , Risk Factors , Renin-Angiotensin System/drug effects
13.
BMC Infect Dis ; 24(1): 479, 2024 May 10.
Article in English | MEDLINE | ID: mdl-38730338

ABSTRACT

BACKGROUND & AIMS: Pyogenic liver abscess (PLA) is a common hepatobiliary infection that has been shown to have an increasing incidence, with biliary surgery being identified as a trigger. Our aim was to investigate the clinical characteristics and treatments of PLA patients with and without a history of biliary surgery (BS). METHODS: The study included a total of 353 patients with PLA who received treatment at our hospital between January 2014 and February 2023. These patients were categorized into two groups: the BS group (n = 91) and the non-BS group (n = 262). In the BS group, according to the anastomosis method, they were further divided into bilioenteric anastomoses group (BEA, n = 22) and non-bilioenteric anastomoses group (non-BEA, n = 69). Clinical characteristics were recorded and analyzed. RESULTS: The percentage of PLA patients with BS history was 25.78%. The BS group exhibited elevated levels of TBIL and activated APTT abnormalities (P = 0.009 and P = 0.041, respectively). Within the BS group, the BEA subgroup had a higher prevalence of diabetes mellitus (P < 0.001) and solitary abscesses (P = 0.008) compared to the non-BEA subgroup. Escherichia coli was more frequently detected in the BS group, as evidenced by positive pus cultures (P = 0.021). The BS group exhibited reduced treatment efficacy compared to those non-BS history (P = 0.020). Intriguingly, the BS group received a higher proportion of conservative treatment (45.05% vs. 21.76%), along with reduced utilization of surgical drainage (6.59% vs. 16.41%). CONCLUSIONS: Patients with BS history, especially those who have undergone BEA, have an increased susceptibility to PLA formation without affecting prognosis.


Subject(s)
Biliary Tract Surgical Procedures , Liver Abscess, Pyogenic , Humans , Liver Abscess, Pyogenic/microbiology , Liver Abscess, Pyogenic/surgery , Male , Female , Middle Aged , Retrospective Studies , Aged , Adult , Anti-Bacterial Agents/therapeutic use , Escherichia coli/isolation & purification , Drainage
14.
Proc Natl Acad Sci U S A ; 118(3)2021 01 19.
Article in English | MEDLINE | ID: mdl-33431678

ABSTRACT

Nuclear factor κB (NF-κB)-mediated signaling pathway plays a crucial role in the regulation of inflammatory process, innate and adaptive immune responses. The hyperactivation of inflammatory response causes host cell death, tissue damage, and autoinflammatory disorders, such as sepsis and inflammatory bowel disease. However, how these processes are precisely controlled is still poorly understood. In this study, we demonstrated that ankyrin repeat and suppressor of cytokine signaling box containing 1 (ASB1) is involved in the positive regulation of inflammatory responses by enhancing the stability of TAB2 and its downstream signaling pathways, including NF-κB and mitogen-activated protein kinase pathways. Mechanistically, unlike other members of the ASB family that induce ubiquitination-mediated degradation of their target proteins, ASB1 associates with TAB2 to inhibit K48-linked polyubiquitination and thereby promote the stability of TAB2 upon stimulation of cytokines and lipopolysaccharide (LPS), which indicates that ASB1 plays a noncanonical role to further stabilize the target protein rather than induce its degradation. The deficiency of Asb1 protects mice from Salmonella typhimurium- or LPS-induced septic shock and increases the survival of mice. Moreover, Asb1-deficient mice exhibited less severe colitis and intestinal inflammation induced by dextran sodium sulfate. Given the crucial role of ASB proteins in inflammatory signaling pathways, our study offers insights into the immune regulation in pathogen infection and inflammatory disorders with therapeutic implications.


Subject(s)
Colitis/immunology , NF-kappa B/immunology , Protein Processing, Post-Translational , Salmonella Infections/immunology , Shock, Septic/immunology , Suppressor of Cytokine Signaling Proteins/immunology , Adaptor Proteins, Signal Transducing/genetics , Adaptor Proteins, Signal Transducing/immunology , Animals , Colitis/chemically induced , Colitis/genetics , Colitis/mortality , Dextran Sulfate , Genes, Reporter , Interleukin-1beta/genetics , Interleukin-1beta/immunology , Interleukin-6/genetics , Interleukin-6/immunology , Lipopolysaccharides , Luciferases/genetics , Luciferases/immunology , MAP Kinase Kinase Kinases/genetics , MAP Kinase Kinase Kinases/immunology , Mice , Mice, Knockout , NF-kappa B/genetics , Protein Binding , Salmonella Infections/genetics , Salmonella Infections/microbiology , Salmonella Infections/mortality , Salmonella typhimurium/immunology , Salmonella typhimurium/pathogenicity , Shock, Septic/chemically induced , Shock, Septic/genetics , Shock, Septic/mortality , Signal Transduction , Suppressor of Cytokine Signaling Proteins/genetics , Survival Analysis , Ubiquitination
15.
J Craniofac Surg ; 2024 May 14.
Article in English | MEDLINE | ID: mdl-38743031

ABSTRACT

BACKGROUND: M-shaped zygomatic arch fractures can usually be treated effectively through closed reduction. It consists of 2 fracture segments: the anterior zygomatic segment and the posterior temporal bone segment. In clinical practice, atypical M-shaped fractures are often encountered, in which the anterior and posterior fracture segments are discontinuous and separated. Closed reduction usually cannot achieve the desired anatomic reduction effect for this type of fracture. METHODS: The preoperative design showed that the anatomic reduction of the posterior zygomatic arch fracture segment was hindered due to bone spurs in the most concave area of the anterior zygomatic bone fracture segment. Open reduction and fixation were performed to achieve anatomic reduction and restore facial symmetry. The fracture sites were exposed through a hemicoronal incision. After the bone spurs are removed, the posterior bone segment can be anatomically reduced. Absorbable plates were used for fixation. RESULTS AND DISCUSSION: The patient's facial appearance was restored after the surgery. The postoperative computed tomography scan showed a good alignment of the fracture. The authors believe that for patients with high requirements for facial symmetry, the presence of atypical M-shaped fractures can indicate open reduction and fixation.

16.
J Craniofac Surg ; 35(5): e423-e424, 2024.
Article in English | MEDLINE | ID: mdl-38568848

ABSTRACT

The use of absorbable plates can be challenging for mandibular fractures involving bilateral dentition. Chewing and mouth opening movements may cause loosening or breakage of absorbable materials, leading to displacement of bone segments and resulting in malocclusion. The use of absorbable materials for bilateral mandibular fracture surgery itself raises concerns for surgeons. Timely intermaxillary elastic traction is essential for these patients after surgery to maintain correct occlusion. The surgical approaches were performed with intraoral mandibular sulcus incisions. During the surgery, intermaxillary fixation screws were implanted and steel wires were used for intermaxillary ligation and fixation to restore the occlusal. After the fractured segments were sequentially reduced, they were fixed with inion 2.0 absorbable plates. The patient underwent intermaxillary elastic traction for 1 week. Elastic mask was used to assist in stabilizing the position of the jawbone and maintaining occlusion. After discharge, the patient continued traction at home for 3 weeks before removing the intermaxillary fixation screws. The patient recovered well after surgery without any complications. The postoperative occlusal relationship is good. Postoperative CT showed good reduction of the fractured segments. For the case reported in this article, elastic traction was promptly implemented after surgery. We emphasize that restoring occlusion is always the treatment goal for jawbone fractures. We believe that keeping the intermaxillary fixation screws for a month is a wise choice to be prepared for unexpected needs.


Subject(s)
Absorbable Implants , Bone Plates , Fracture Fixation, Internal , Mandibular Fractures , Traction , Humans , Mandibular Fractures/surgery , Mandibular Fractures/diagnostic imaging , Fracture Fixation, Internal/instrumentation , Fracture Fixation, Internal/methods , Traction/instrumentation , Bone Screws , Male , Jaw Fixation Techniques/instrumentation , Tomography, X-Ray Computed , Adult
17.
J Craniofac Surg ; 35(5): e428-e429, 2024.
Article in English | MEDLINE | ID: mdl-38563559

ABSTRACT

BACKGROUND: The sagittal fracture of the mandibular condyle can be fixed with absorbable long screws. Absorbable long screws are generally inserted from the lateral crest of the condyle and are as close as possible to the medial pole of the condyle to obtain sufficient retention force. However, in clinical practice, patients with locally comminuted condylar fractures and partial defects in the lateral crest are often encountered. We validated the use of absorbable plates and long screws to fix mandibular condylar fractures with lateral crest defects, and postoperative follow-up showed good results. METHODS: The preoperative design indicated that if conventional long screws were used, more soft tissue need to be pulled downward to achieve the appropriate drilling angle. If an absorbable plate was used, the degree of downward pulling of soft tissue was smaller, which can better protect the parotid gland tissue and facial nerve. The surgery was performed according to the preoperative design, using an absorbable plate scheme. RESULTS AND DISCUSSION: Postoperative CT confirmed a stable anatomical reduction of condyle. Four-month follow-up showed that the patient's facial shape, occlusion, and mouth opening were all good. Follow-up CT showed good fracture healing. It is feasible to use absorbable plates and long absorbable screws to fix mandibular condylar sagittal fracture accompanied by lateral condylar crest defect.


Subject(s)
Absorbable Implants , Bone Plates , Bone Screws , Fracture Fixation, Internal , Mandibular Condyle , Mandibular Fractures , Humans , Mandibular Condyle/injuries , Mandibular Condyle/surgery , Mandibular Condyle/diagnostic imaging , Mandibular Fractures/surgery , Mandibular Fractures/diagnostic imaging , Mandibular Fractures/complications , Fracture Fixation, Internal/methods , Fracture Fixation, Internal/instrumentation , Male , Adult , Tomography, X-Ray Computed , Female , Treatment Outcome , Fractures, Comminuted/surgery
18.
J Stroke Cerebrovasc Dis ; 33(12): 108019, 2024 Sep 18.
Article in English | MEDLINE | ID: mdl-39303866

ABSTRACT

BACKGROUND: Previous observational studies have suggested that thyroid function may be associated with functional outcome after ischemic stroke (IS). Nevertheless, the causal relationship remains unclear. This study aimed to explore the causal effect of thyroid function [thyroid-stimulating hormone (TSH), free thyroxine (FT4), hyperthyroidism, and hypothyroidism] on functional outcome (based on the modified Rankin scale) after IS by two-sample Mendelian randomization (MR) analysis. METHODS: Inverse variance weighted (IVW) was the primary method for evaluating causal associations. In addition, six additional MR methods (MR-Egger regression, weighted median, maximum likelihood, simple mode, weighted mode, and MR-PRESSO) were employed to supplement IVW. Furthermore, various sensitivity tests were conducted to assess the reliability: (i) Cochrane's Q test for assessing heterogeneity; (ii) MR-Egger intercept test and MR-PRESSO global test for evaluating horizontal pleiotropy; (iii) leave-one-out sensitivity test for determining stability. RESULTS: The results of IVW indicated that elevated TSH levels significantly improved functional outcome after IS (OR = 0.74, 95 % CI: 0.57-0.97, P = 0.028). In addition, six additional MR methods suggested parallel results. However, no causal effect of FT4, hyperthyroidism, and hypothyroidism on functional outcome after IS was identified. In addition, sensitivity tests demonstrated the reliability of the MR analyses, suggesting that the MR analysis was not influenced by significant heterogeneity and horizontal pleiotropy. CONCLUSIONS: Our MR study supported that elevated TSH levels might improve functional outcome after IS. Therefore, regular monitoring and maintenance of stable TSH levels may benefit patients recovering from IS.

19.
Int J Mol Sci ; 25(6)2024 Mar 13.
Article in English | MEDLINE | ID: mdl-38542235

ABSTRACT

Currently, several types of inhalable liposomes have been developed. Among them, liposomal pressurized metered-dose inhalers (pMDIs) have gained much attention due to their cost-effectiveness, patient compliance, and accurate dosages. However, the clinical application of liposomal pMDIs has been hindered by the low stability, i.e., the tendency of the aggregation of the liposome lipid bilayer in hydrophobic propellant medium and brittleness under high mechanical forces. Biomineralization is an evolutionary mechanism that organisms use to resist harsh external environments in nature, providing mechanical support and protection effects. Inspired by such a concept, this paper proposes a shell stabilization strategy (SSS) to solve the problem of the low stability of liposomal pMDIs. Depending on the shell material used, the SSS can be classified into biomineralization (biomineralized using calcium, silicon, manganese, titanium, gadolinium, etc.) biomineralization-like (composite with protein), and layer-by-layer (LbL) assembly (multiple shells structured with diverse materials). This work evaluated the potential of this strategy by reviewing studies on the formation of shells deposited on liposomes or similar structures. It also covered useful synthesis strategies and active molecules/functional groups for modification. We aimed to put forward new insights to promote the stability of liposomal pMDIs and shed some light on the clinical translation of relevant products.


Subject(s)
Biomineralization , Liposomes , Humans , Metered Dose Inhalers , Administration, Inhalation
20.
J Environ Manage ; 368: 122219, 2024 Sep.
Article in English | MEDLINE | ID: mdl-39153322

ABSTRACT

This study, aimed at exploring low-maintenance, high-diversity, and sustainable greening strategies for residential areas, conducted a comprehensive survey and analysis of spontaneous plants in residential green spaces in Fuzhou City, documenting 361 species. Employing methods such as variance partitioning, Canonical Correspondence Analysis (CCA), and ecological niche analysis, we investigated the environmental factors influencing the distribution and composition of these plants, as well as their interrelationships. The study found that the composition of spontaneous plants in residential green spaces differs from other urban environments, with a high proportion of alien species (43.77%) due to influences such as resident activities, including a large number of ornamental and edible plants. Maintenance level, urbanization gradient, and green space ratio are common factors affecting the composition and distribution of spontaneous plants in urban environments, while unique residential socio-economic factors like building age, housing prices, and population density significantly affect the spontaneous plants in residential green spaces. The overall dominant plant community shows a significant positive association, indicating a relatively stable stage of succession. Although competition among most species is not significant and interspecific connectivity is weak, the presence of seven dominant invasive species intensifies competition. Based on these findings, the study proposes several specific sustainable management measures: adopting the concept of New Naturalistic Ecological Planting Design, selecting native spontaneous plants with strong adaptability, and constructing plant communities that are ecologically stable and have ornamental value by mimicking natural ecosystems. Additionally, specific methods for managing specific invasive species in residential green spaces using competitive replacement control methods are proposed. These measures aim to promote the health and sustainable development of urban residential green spaces.


Subject(s)
Ecosystem , Sustainable Development , China , Conservation of Natural Resources/methods , Plants , Urbanization , Cities , Biodiversity , Introduced Species
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