Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.
Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
Naunyn Schmiedebergs Arch Pharmacol. 2023 Nov;396(11):3233-3242. doi: 10.1007/s00210-023-02532-3. Epub 2023 May 29.
Acute respiratory distress syndrome (ARDS) is a serious intensive care condition. Despite advances in treatment over the previous few decades, ARDS patients still have high fatality rates. Thus, more research is needed to improve the outcomes for people with ARDS. Minocycline is an antibiotic with antioxidant, anti-inflammatory, and anti-apoptotic effects. In the current investigation, the therapeutic effects of minocycline on oleic acid-induced ARDS were evaluated. Male rats were classified into 6 groups, 1. control (normal saline), 2. oleic acid (100 µL, i.v.), 3-5. oleic acid + minocycline (50, 100, 200 mg/kg, i.p.), and 6. minocycline (200 mg/kg, i.p.) alone. Twenty-four hours after the oleic acid injection, the lung tissue is isolated, weighed, and the middle part of the right lung is immediately placed in the freezer, while the middle part of the left lung is placed in formalin and sent to the laboratory for pathology testing. Then, the amounts of malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), cytokines (interleukin-1 beta (IL-1β), tumor necrosis factor-α (TNF-α)), B-cell lymphoma 2 (Bcl-2), Bcl-2 associated X (Bax), and cleaved caspase-3 were determined in lung tissue. Administration of oleic acid increased emphysema, inflammation, vascular congestion, hemorrhage, MDA amount, Bax/Bcl-2 ratio, cleaved caspase-3, IL-1β, TNF-α levels, and decreased GSH, SOD, and CAT levels in comparison with the control group. The administration of minocycline could significantly reduce pathological and biochemical alterations induced by oleic acid. Minocycline has a therapeutic effect on oleic acid-induced ARDS through antioxidant, anti-inflammatory, and anti-apoptotic properties.
急性呼吸窘迫综合征(ARDS)是一种严重的重症监护病症。尽管在过去几十年中治疗方法有所进步,但 ARDS 患者的死亡率仍然很高。因此,需要进行更多的研究以改善 ARDS 患者的预后。米诺环素是一种具有抗氧化、抗炎和抗细胞凋亡作用的抗生素。在当前的研究中,评估了米诺环素对油酸诱导的 ARDS 的治疗作用。雄性大鼠分为 6 组,1. 对照组(生理盐水),2. 油酸组(100µL,iv.),3-5. 油酸+米诺环素组(50、100、200mg/kg,ip.)和 6. 米诺环素组(200mg/kg,ip.)。油酸注射后 24 小时,分离、称重肺组织,立即将右肺中叶置于冷冻室,左肺中叶置于福尔马林中,并送往实验室进行病理检测。然后,测定肺组织中丙二醛(MDA)、谷胱甘肽(GSH)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、细胞因子(白细胞介素-1β(IL-1β)、肿瘤坏死因子-α(TNF-α))、B 细胞淋巴瘤 2(Bcl-2)、Bcl-2 相关 X(Bax)和裂解半胱天冬酶-3 的含量。与对照组相比,油酸给药增加了肺气肿、炎症、血管充血、出血、MDA 量、Bax/Bcl-2 比值、裂解半胱天冬酶-3、IL-1β、TNF-α 水平,并降低了 GSH、SOD 和 CAT 水平。米诺环素的给药可显著减轻油酸引起的病理和生化改变。米诺环素通过抗氧化、抗炎和抗细胞凋亡作用对油酸诱导的 ARDS 具有治疗作用。