<b><i>Introduction:</i></b> Cerebral infarction (CI) is one of the leading causes of serious long-term disability and mortality. <b><i>Objective:</i></b> We aimed to identify potential miRNAs and target mRNAs and assess the involvement of immunocyte infiltration in the process of CI. <b><i>Methods:</i></b> First, miRNA and mRNA data were downloaded from the Gene Expression Omnibus database, followed by differential expression analysis. Second, correlation analysis between differentially expressed mRNAs and differential immunocyte subtypes was performed through the CIBERSORT algorithm. Third, the regulatory network between miRNAs and immunocyte subtype-related mRNAs was constructed followed by the functional analysis of these target mRNAs. Fourth, correlation validation between differentially expressed mRNAs and differential immunocyte subtypes was performed in the GSE37587 dataset. Finally, the diagnostic ability of immunocyte subtype-related mRNAs was tested. <b><i>Results:</i></b> Up to 17 differentially expressed miRNAs and 3,267 differentially expressed mRNAs were identified, among which 310 differentially expressed mRNAs were significantly associated with immunocyte subtypes. Several miRNA-target mRNA-immunocyte subtype networks including hsa-miR-671-3p-ZC3HC1-neutrophils, hsa-miR-625-CD5-monocytes, hsa-miR-122-ACOX1/DUSP1/NEDD9-neutrophils, hsa-miR-455-5p-SLC24A4-monocytes, and hsa-miR-455-5p-SORL1-neutrophils were identified. LAT, ACOX1, DUSP1, NEDD9, ZC3HC1, BIN1, AKT1, DNMT1, SLC24A4, and SORL1 had a potential diagnostic value for CI. <b><i>Conclusions:</i></b> The network including miRNA, target mRNA, and immunocyte subtype may be novel regulators and diagnostic and therapeutic targets in CI.
Objective: Orolingual angioedema (OA) is a rare but life-threatening complication of intravenous thrombolysis using alteplase. Angioedema can be caused by almost any medication. Administration of recombinant tissue plasminogen activator causes atypical angioedema. This study aimed to investigate factors related to and treatment of OA after thrombolysis with alteplase. Case report: We describe the case of a 53-year-old man with a history of hypertension managed with enalapril, who presented with ischemic cerebrovascular stroke. Intravenous alteplase was administered, and within 54 minutes, the patient developed severe orolingual edema requiring emergent intubation. Subsequent imaging revealed an acute-to-subacute infarct in the left occipital lobe of the posterior cerebral artery. Results: The most common factor for increased risk of OA after recombinant tissue plasminogen activator was concomitant use of angiotensin-converting enzyme inhibitors (ACEI). Conclusion: Before intravenous thrombolytic therapy, patients should be asked if they have a history of allergies, are currently using ACEI, and try to avoid using ACEI antihypertensive drugs before and after thrombolytic therapy.
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