Alright as a quick recap, spinocerebellar ataxia is a group of progressive neurodegenerative diseases of genetic origin.

得！快速回顾一下～脊髓小脑性共济失调是一组遗传性进行性神经退行性疾病。

Alzheimer's is a progressive disease. It worsens over time.

阿尔茨海默病是一种进行性疾病。它会随着时间的推移而恶化。

All right, as a quick recap, essential thrombocythemia is a slowly progressive disease where the bone marrow produces too many platelets.

得！快速回顾一下：原发性血小板增多症是骨髓产生过多血小板的缓慢进展的疾病。

(Laughter) I lost my father in February to a progressive lung disease.

（ 笑声）我的父亲在二月份因进行性肺病去世了。

HIV is a progressive disease which the immune response ultimately fails to control.

【immune】人体免疫缺损病毒是一种逐渐严重的疾病，会最终导致免疫反应失去控制能力。

Alzheimer's disease is a progressive neurodegenerative disease that leads to symptoms of dementia.

阿尔茨海默病是一种进行性神经退行性疾病，导致痴呆症的症状。

Here's what we can say: it's a progressive degenerative brain disease.

我们可以这样说：这是一种进行性退行性脑病。

By then, he had undergone 24 medical procedures to try to reduce pain caused by a progressive disease and from a series of accidents.

到那时，他已经接受了24次手术，以缓解退化性疾病和一系列事故引起的疼痛。

Unfortunately, because Parkinson's is a progressive disease, with time, the number of dopamine producing neurons decreases, and fewer cells are capable of making dopamine.

不幸的是，因为帕金森氏症是一种进行性疾病，随着时间的推移，人数越来越多产生多巴胺的神经元数量减少，能够制造多巴胺的细胞减少。