98%
921
2 minutes
20
Introduction: This study aimed to analyze the levels of MMP-9 and TIMP-1 as biomarkers for identifying lung anatomical and functional abnormalities in coronavirus disease 2019 (COVID-19).
Methodology: Adult COVID-19 patients hospitalized between October and December 2021 were included in the study. MMP-9 and TIMP-1 levels were measured from the blood. Chest X-ray was categorized using the Brixia index. A blood gas analysis was performed in the emergency room.
Results: MMP-9 was higher in severe COVID-19 patients (1,430.09 ± 1,492.22) than in non-severe cases (819.90 ± 750.13) with p < 0.05, but not different between mortality groups. TIMP-1 was lower in non-severe cases (4.88 ± 3.49) than in severe cases (8.61 ± 9.09) with p > 0.05. The increase in MMP-9 was correlated to TIMP-1 with a linear regression value R2 = 0.945. Lung abnormalities were categorized as normal (6.9%), mild (23.6%), moderate (29.2%), and severe (40.3%). Brixia score was significantly correlated with FiO2 (r = 0.547), PaO2/FiO2 (r = - 0.317), and SpO2/FiO2 (r = - 0.476). MMP-9 and TIMP-1 were significantly correlated with the Brixia score (r = 0.315 and r = - 0.234, respectively), and PaO2/FiO2 (r = - 0.291 and r = 0.283, respectively). MMP-9 was significantly correlated with severity (r = 0.313).
Conclusion: MMP-9 and TIMP-1 were related to lung imaging, functional abnormalities, and severity; but were not associated with mortality.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.3855/jidc.19929 | DOI Listing |
Cell Physiol Biochem
September 2025
Department of General Practice, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China, E-Mail:
Background/aims: Ubiquitin D (UBD), a member of the ubiquitin-like modifier (UBL) family, is significantly overexpressed in various cancers and is positively correlated with tumor progression. However, the role and underlying mechanisms of UBD in rheumatoid arthritis (RA) remain poorly understood. This study aimed to investigate the effects of UBD knockdown on the progression of RA.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350000, China; Research Center of Dental Esthetics and B
This study examined the pH-dependent (3, 5, and 7) regulation of matrix metalloproteinase (MMP) activity by cathepsin K (catK) and glycosaminoglycans (GAGs) using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), fluorescence assays, and human dentin slice experiments. The direct effects of catK were evaluated in the catK-active, catK-deficient, and odanacatib (ODN)-inhibited groups, whereas indirect GAG/ tissue inhibitor of metalloproteinase (TIMP)-mediated regulation was assessed in the catK-active, ODN-inhibited, and chondroitin sulfate (CS)-treated groups through dimethylmethylene blue (DMMB) assays, in situ zymography, and immunofluorescence staining. CatK directly activated MMP-2 (62 kDa) and MMP-9 (82 kDa) at all pH values, with no activation observed in the ODN-inhibited or catK-deficient groups.
View Article and Find Full Text PDFSci Rep
September 2025
Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre (ID: 60014618), 33 ELBohouth St. (former EL Tahrir St.), P.O. 12622, Dokki, Cairo, Egypt.
Idiopathic pulmonary fibrosis (IPF) is one of the rapidly progressing interstitial lung illnesses. Bleomycin (Bleo) is used as a chemotherapeutic agent for the treatment of lymphoma patients. The major side effects of Bleo include lung fibrosis, characterized by the accumulation of inflammatory cells.
View Article and Find Full Text PDFEnviron Int
August 2025
Institute of Maternal and Children Health, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji medical college, Huazhong University of Science & Technology, Wuhan, China. Electronic address:
Rare earth elements (REEs) are emerging environmental contaminants, yet their effects on preterm birth (PTB) remain poorly understood. This study integrates epidemiological and mechanistic evidence to evaluate REEs-associated PTB risk and potential biological pathways. We analyzed 4,897 mother-child pairs from a large cohort in China and 13 REEs in maternal urine were measured.
View Article and Find Full Text PDFJ Ethnopharmacol
August 2025
Department of Plant and Soil Sciences, University of Pretoria, Pretoria, Gauteng, 0002, South Africa; School of Natural Resources, University of Missouri, Missouri, USA.
Ethnopharmacological Relevance: Persicaria senegalensis has been traditionally used across Africa to treat various skin ailments, including infections and wounds. These conditions typically involve inflammation and subsequent remodelling of the skin's structural matrix-processes that closely mirror those observed in skin ageing. Despite its widespread ethnobotanical use for skin-related treatments, the potential of P.
View Article and Find Full Text PDF