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JoVE Core
Pharmacology
糖尿病:症状、诊断和并发症
糖尿病:症状、诊断和并发症
JoVE Core
Pharmacology
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JoVE Core Pharmacology
Diabetes: Symptoms, Diagnosis, and Complications

25.5: 糖尿病:症状、诊断和并发症

2,373 Views
01:15 min
December 19, 2024
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

对于大多数患者来说,经历数周的多尿、多饮、疲劳和体重明显下降可能表明患有糖尿病。此外,表现出 2 型糖尿病表型的成年人(尤其是肥胖且最初不需要胰岛素的人)可能具有胰岛细胞自身抗体,这表明这是由自身免疫介导的 β 细胞破坏,并可诊断为成人隐匿性自身免疫性糖尿病 (LADA) 。葡萄糖稳态的分类基于空腹血糖和口服葡萄糖刺激后的血糖水平。这些类别包括:

-正常血糖稳态:空腹血糖 < 5.6 mmol/L (100 mg/dL)

-空腹血糖受损 (IFG):5.6–6.9 mmol/L (100–125 mg/dL)

-糖耐量受损 (IGT):摄入 75g 液体葡萄糖溶液 120 分钟后血糖水平在 7.8 至 11.1 mmol/L (140 至 199 mg/dL) 之间

-糖尿病:空腹血糖≥ 7.0 mmol/L (126 mg/dL),75g 口服葡萄糖耐量测试后 2 小时血糖≥ 11.1 mmol/L (200 mg/dL),或 糖化血红蛋白(HbA1c) ≥ 6.5%。

美国糖尿病协会 (ADA) 和世界卫生组织 (WHO) 已基于空腹血糖、口服葡萄糖刺激后的血糖反应或糖化血红蛋白 (HbA1c,也称为 A_1c) 水平制定了诊断糖尿病的标准。糖耐量受损(IFG) 和空腹血糖受损( IGT) 提示进展为 2 型糖尿病的风险增加,并且与更高的心血管疾病的风险有关。许多 2 型糖尿病患者在诊断时没有症状。ADA 建议对具有特定风险因素的成年人进行 2 型糖尿病的广泛筛查,这些风险因素包括年龄超过 45 岁、体重指数高、缺乏身体活动、高血压和 2 型糖尿病家族史等。早期诊断和治疗2 型糖尿病可以有效延缓相关并发症,并减少疾病负担。

未经治疗的糖尿病可能导致严重的代谢紊乱,例如糖尿病酮症酸中毒和高血糖高渗状态,这些情况需要立即就医。糖尿病的慢性终末器官影响包括微血管和大血管并发症。临床试验的证据表明,通过有效控制血糖水平,可以预防、延迟或减少大多数糖尿病相关并发症。总之,了解糖尿病的症状、诊断及其潜在并发症对于及时干预和疾病的有效管理至关重要。

Transcript

糖尿病最初可以根据症状来识别。

高血糖患者可能出现常见症状,包括多尿、烦渴、疲劳和体重减轻。

糖尿病通过血糖测试和口服葡萄糖耐量试验来确诊。

禁食时,健康人的血糖浓度为 <100 mg/dL,而高血糖患者的血糖浓度为 ≥ 126 mg/dL,或口服葡萄糖耐量试验显示血糖水平≥ 200 mg/dL。

他们的 A1c 水平≥ 6.5%,表明连续 3 个月的平均血糖水平。

糖尿病如果不治疗,会导致严重的代谢紊乱,例如糖尿病酮症酸中毒和高血糖高渗状态。

它还可能导致慢性终末器官影响,例如视网膜病变、肾病、神经病变、心肌梗塞和中风。

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