Effects of Minocycline on Patients With Ischemic Stroke Undergoing Intravenous Thrombectomy

Inclusion Criteria: 1. Patients with acute cerebral infarction of anterior circulation accompanied by large vessel occlusion; 2. Age 18-85 years old; 3. The time of onset ≤ 6 hours or ≤ 24 hours suitable for mechanical thrombectomy determined by multimodal imaging; 4. The time of onset 6-24 hours, DWI shows an infarct volume less than 1/3 of the MCA blood supply area; the time of onset ≤ 6 hours, the ASPECTS(Alberta Stroke Program Early CT Score) is ≥6; 5. Preoperative NIHSS score ranges from 6 to 30 points; 6. Sign the informed consent form; Exclusion Criteria: 1. There are contraindications for mechanical thrombectomy; 2. No revascularization therapy was performed during the operation or the TICI score after revascularization therapy was less than 2b; 3. There are other major central nervous system diseases, such as brain injury, brain tumor, multiple sclerosis, etc; 4. There is evidence that the patient has bacterial endocarditis, aortic dissection, arteritis or venous cerebral infarction; 5. Renal insufficiency or hepatic insufficiency (serum creatinine \>2.0 mg/dL or 180 µmol/L; liver function greater than 3 times the normal value); 6. Known history of congestive heart failure (requiring dietary or medication changes or hospitalization) within 6 months, or myocardial infarction within 6 months; 7. There is evidence of any other life-threatening or severe diseases that may hinder the completion of the 3-month follow-up and affect the evaluation of the results; 8. Pre-existing neurological deficits or history of dementia; 9. There are infectious diseases that require antibiotic treatment before the disease; 10. Allergic to tetracyclines or unable to take minocycline for other reasons; 11. Minocycline could not be given within 1 hour after recanalization; 12. Pregnant patients; 13. Participated in another clinical trial within 30 days before inclusion in the study. 14. Refuse to sign the informed consent form.