末端补体抑制时代的非典型血溶性尿素性综合征:一个观察性队列研究
Vicky Brocklebank1,2, Patrick R Walsh1,2, Kate Smith-Jackson1,2
1National Renal Complement Therapeutics Centre, Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle upon Tyne, United Kingdom.
Blood
|June 27, 2023
概括
在补充介导的非典型血溶性尿素综合征 (CaHUS) 患者中,eculizumab显著改善了的存活率,降低了末期病 (ESKD) 风险. 治疗结果取决于遗传因素,仔细监测感染至关重要.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
背景情况:
- 补充介导的非典型溶血性尿素性综合征 (CaHUS) 历史上导致末期病 (ESKD).
- 在短期CaHUS试验中,eculizumab已经显示出潜在的疗效.
- 需要基因型匹配的队列研究来证实长期益处.
研究的目的:
- 评估eculizumab在基因型匹配的CaHUS队列中预防ESKD的长期疗效.
- 确定与治疗反应和复发相关的因素.
- 为了调查eculizumab不响应的遗传原因.
主要方法:
- 用eculizumab治疗的基因型匹配的CaHUS队列与历史对照队列的比较.
- 对预测6个月后功能的临床因素的多变量分析.
- 在停止使用eculizumab后评估脑膜炎球菌感染率和复发率.
- 基因分析以确定与eculizumab不响应相关的突变.
主要成果:
- 没有ESKD的五年生存率从eculizumab的39.5%提高到85.5% (HR4.95,P=.000).
- 较低的肌素,血小板数,血压,年龄较小,治疗时间较短预测了更好的功能.
- 在接受治疗的队列中,脑膜炎球菌感染率是治疗队列的550倍.
- 复发率因遗传变异而异;没有罕见变异的患者没有复发.
结论:
- 在CaHUS患者中,eculizumab显著提高了长期脏生存率.
- 治疗结果受遗传背景和临床因素的影响.
- 在RNA处理基因 (例如,EXOSC3) 中的双基因突变可能导致eculizumab的不响应.
相关概念视频
01:24Chronic Kidney Disease II: Clinical Manifestations
40
Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
40
01:27Complement System
2.5K
The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a...
2.5K
01:24Nephrotic Syndrome I : Introduction
10
Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
10
01:29Acute Kidney Injury III: Clinical Manifestations
44
Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
44
01:30Acute Kidney Injury IV: Diagnostic Studies and Prevention
40
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
40
01:25Urinary Tract Infection II: Pathophysiology
20
The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
20