This is an important difference between rheumatoid arthritis, an inflammatory disease that also affects the joints.

这与类风湿关节炎有很大不同；类风湿关节炎也是一种累及关节的炎疾病。

With rheumatoid arthritis, morning stiffness usually lasts longer than 1 hour.

类风湿关节炎患者的晨僵往往持续时间超过1小时。

It is proven to treat malaria, rheumatoid arthritis and lupus.

经证明，这种药物可以治疗疟疾、类风湿关节炎和狼疮。

Take rheumatoid arthritis, which affects 1.3 million U.S. adults.

以类风湿关节炎为例，这种疾病影响到 130 万美国成年人。

Individuals may have an elevated risk if they also have immune diseases like type 1 diabetes or rheumatoid arthritis.

如果患者有免疫性疾病（如1型糖尿病或类风湿关节炎），患病风险可能会更。

Scientists are making progress with therapies that block TNF-alpha, one of the primary proteins causing inflammation in rheumatoid arthritis.

科学家在阻断 TNF-α 疗法上正取得研究进展，TNF-α 是导致类风湿关节炎发炎的主要蛋白质之一。

The doctors did not release details, but said they were preparing to publish results. Acetemra is used to treat rheumatoid arthritis and other diseases.

医生并未透露细节，但是表示他们正在准备发表研究结果。Acetemra被用于治疗类风湿关节炎等疾病。

The pain in osteoarthritis is usually a sharp ache or burning sensation, which also gets worse with prolonged activity, but usually the joints don't swell, whereas rheumatoid arthritis typically involves painful swelling.

骨关节炎的疼痛往往非常尖锐、有灼烧感，随着活动加剧，疼痛加重，通常关节不肿胀，而类风湿关节炎患者常常出现肿胀和疼痛。

Also, some systemic diseases such as diabetes, rheumatoid arthritis, and systemic lupus erythematosis can enhance inflammation in the periodontium which can lead to a shift in bacterial composition and increase the risk or severity of periodontitis.

此外，某些系统性疾病，例如糖尿病、类风湿关节炎、系统性红斑狼疮，会增加牙周组织炎，从而改变口腔微生物群中细菌的组成，并增大患牙周炎的风险或加重牙周炎。