此页面已自动翻译。如有任何差异,应以英文版本为准。.

修订日期:2026年8月25日

先有脂质还是先有炎症?载脂蛋白 B 与动脉粥样硬化的“先有鸡还是先有蛋”难题

作者:彼得·梅格达尔 博士

如何使用本文

免责声明: 本文仅供教育参考,并非医疗建议。如有个人健康疑问,请务必咨询您的临床医生。.

易读

几十年来,医生和科学家们一直陷入一个“先有鸡还是先有蛋”的谜团中。当某人患有 心脏病发作, ,他们的动脉里充满了两种特定的东西:脂肪堆积(脂质)以及“肿胀”免疫反应的迹象(炎症).

但究竟哪个是起因呢?心脏病是由血液中脂肪过多引起的,还是由身体免疫系统过度反应导致肿胀引起的?

想象一场房屋火灾。当消防车到达时,他们发现既有浓烟又有烈火。是烟雾引起了火灾,还是火灾引起了烟雾?

多年来,我们几乎把全部精力都放在了“脂肪”( 胆固醇 水平),以为只要减掉脂肪,火就会熄灭。但最近的科学研究表明,情况要复杂得多,我们需要同时关注燃料和火花。.

这篇文章将揭示这个谜团令人惊奇的答案——一个改变我们看待心脏健康方式的答案。它解释了为什么许多胆固醇水平“正常”的人仍然会遭受心脏病发作。.

1. ApoB是引发问题的“小手提箱”

我们大多数人都习惯于看我们的 LDL-C 验血中的一个数字。这通常被称为“坏胆固醇”,但实际上它测量的是 重量 或者您血液中胆固醇的总质量。.

然而,目前的研究表明我们应该关注其他方面: 载脂蛋白B. 为了理解其中的区别,想象一条高速公路。.

LDL-C 就像那条高速公路上所有乘车出行的人的总重量。. 载脂蛋白B, 另一方面,则是路上汽车的实际数量。.

科学是明确的:导致心脏病的每一个“坏”颗粒都精确携带一个 载脂蛋白B “标签。”它就像是手提箱上的一个把手。.

实际上,这类手柄主要有两种类型。. 载脂蛋白B48 发自你的内心,而 载脂蛋白B100 来自你的肝脏。.

通过计算 载脂蛋白B, ,我们正在计算您血液中危险颗粒的实际数量。这比单纯称量它们内部的胆固醇要准确得多。.

这对以下人群尤为重要: 糖尿病代谢综合征. 在这些个体中,高速公路上的“汽车”通常比平均水平小得多。.

由于汽车很小,你可以在路上容纳更多的车辆,而不会增加乘客的总“重量”。一项标准测试可能会显示“正常”的重量,但你的高速公路实际上却挤满了危险的交通。.

我们还必须担心一种被称为“超级粘性”的颗粒 脂蛋白(a). 这是一个特殊的成员 载脂蛋白B 让你血管格外堵得慌的家人。.

正如源文本中所指出的:

“因为每个致动脉粥样硬化颗粒正好包含1个ApoB分子,所以血浆ApoB浓度反映了循环中致动脉粥样硬化颗粒的总数……病变的开始始于致动脉粥样硬化ApoB颗粒的潴留。”

2. “粘性墙”(留存反应发现)

既然我们已经知道了“汽车”(载脂蛋白B 颗粒物)是问题所在,它们是如何引发心脏病的?科学家将这一起点称作 响应留存”假设.

想象你的 动脉 墙壁就像是一个深厚而厚重的 长毛地毯. 如果你的鞋子很干净,走过那块地毯时什么都不会发生。.

但如果你掉落微小、黏糊糊的碎屑(载脂蛋白B 颗粒)进入地毯里,它们就会被困在 纤维. 这种捕获是 “初始事件。”

这是最先出错的环节。如果没有那些颗粒的滞留,疾病就无法开始。.

炎症 是身体试图清除那些卡住的颗粒的方式。但关键在于: 载脂蛋白B 必须先卡住。.

如果没有 载脂蛋白B 颗粒滞留在动脉壁的“地毯”中,仅靠炎症无法形成脂肪堆积(斑块) 虽然炎症使病情恶化,但它却是最初滞留的“碎屑”所引发的一种反应。.

3. 当胆固醇变成“玻璃碎片”

一旦那些 载脂蛋白B 微粒被困在动脉壁中,“适应不良的免疫反应”随之启动。这其实是一种高大上的说法,意思是你的身体防御系统本想帮忙,结果却帮了倒忙。.

当这些被困颗粒内部的胆固醇停留时间过长时,它实际上会变成 水晶. 把这些想象成微小的、显微镜级别的 玻璃碎片 刺激动脉内壁。.

这些“玻璃碎片”会在你体内触发高级别的警报,被称为 NLRP3 炎症小体. 您可以将其视为您身体的 “主警报系统。”

它是物理性脂肪与化学性肿胀之间的桥梁。当这个警报响起时,它会发出一个该区域正受到攻击的信号。.

您的免疫系统会通过派出白细胞来吞噬这些“碎片”做出反应。这些细胞充满了脂肪,以至于变成了“泡沫细胞”最终死去。.

这创建了一个“坏死核心”——斑块内部那个柔软、稀烂且极其危险的核心。正是在这一刻,一个无声的问题变成了一颗定时炸弹。.

4. CRP是“烟雾报警器”,而不是火灾

如果您曾经检测过炎症水平,您的医生可能检查了您的 超敏C反应蛋白 水平。理解这个数字的实际含义是很重要的。.

考虑 超敏C反应蛋白 作为 烟雾报警器. 家里失火时,烟雾报警器就会响。.

如果你走过去把警报器的电池取下来以停止蜂鸣,你把火扑灭了吗?没有,你只是让警告噤声了。.

使用一种名为的方法进行研究 孟德尔随机化 (这是一种观察我们的基因如何影响我们健康的方法)已经揭示了一个重大的真理。. C反应蛋白 它本身不会引起心脏疾病;它只是告诉我们火灾正在燃烧的“蜂鸣声”。.

“火”实际上是由其他称为 白细胞介素-1β 以及 白介素-6. 这些是“因果驱动因素”,或者是火灾的真正热量。.

如果我们调低“热度”(白介素-6),心脏病的风险就会下降。如果我们只降低“哔”C反应蛋白) 如果不解决根本的过热问题,危险依然存在。.

正如研究所述:

“IL-6 受体信号传导的遗传性下调与较低的炎症活性、较低的下游 CRP 以及较低的冠心病风险相关,这支持了 IL-6 通路的因果关系。”

5. “双重风险”现实(为什么你需要两个灭火器)

长期以来,我们认为只要把你的胆固醇降到足够低的水平,你就安全了。但几项具有里程碑意义的 临床试验 我们改变主意了。.

木星 试验证明,胆固醇处于“正常”水平但炎症水平较高的人超敏C反应蛋白)仍处于高风险之中。尽管他们的“血脂”数值看起来正常,但他们从治疗中获益匪浅。.

坎托斯 试验甚至更加令人惊讶。它表明通过使用一种叫做 卡纳单抗, ,哪个 降低炎症,医生就能预防心脏病发作。.

最后, 傅里叶 试验表明,即使患者的胆固醇降至“超低”水平,那些仍然存在高度炎症的患者依然处于危险之中。这导致了 “双重预防机制” 模型。.

您和您的医生必须考虑三种不同的方案:

  1. 高载脂蛋白B + 低炎症: 路上有很多“车”,但“警报”还没响。由于“面包屑”在不断积累,你仍然面临风险。.
  2. 低载脂蛋白B + 高炎症: 你只有极少量的“车”,但你的身体却处于高度戒备状态。这被称为“残余炎症风险.”
  3. 高载脂蛋白B + 高炎症反应(最糟糕的情况): 你同时面临着一条拥堵的高速公路和一场房屋火灾。这是风险最高的情况。.

6. 现代化作战的新工具(2025年展望)

好消息是,医疗指南终于赶上了这一科学进展。诸如 AACEESC/EAS 现在正大力推动医生使用 载脂蛋白B 更频繁地测试。.

我们也有对抗炎症之“火”的新工具。例如,, 低剂量 秋水仙碱 已成为一种强大的工具。.

这是一种最初用于治疗痛风的非常古老的药物。科学家发现它能平息 NLRP3 “动脉中的”警报系统”。.

我们还有功能强大的人工智能工具,例如 PCSK9 抑制剂. 这些可以驱动 载脂蛋白B 水平降至如此之低,以至于颗粒再也无法“被地毯卡住”。”

这对患者来说是一个巨大的转变。这意味着如果你一直“做得很对”——保持良好的饮食和锻炼——但你的风险依然很高,那么希望依然存在。我们现在可以针对可能是你健康谜题中缺失的那一块的“隐性”炎症进行治疗。.

7. 结论:超越胆固醇数值

我们现在有了“先有鸡还是先有蛋”之谜的答案。心脏病是一种 脂质诱导的炎症性疾病.

“脂质”(载脂蛋白B 粒子)是 鸡蛋——它必须在那里才能启动这个过程。“炎症”是 —它从被困住的脂质中孵化出来,并加重了病情。.

没有被困住的“蛋”(即最初的成因),就不会有导致血管阻塞的斑块这只“鸡”。 载脂蛋白B 粒子。但一旦这个过程开始,炎症就会决定疾病的发展速度。.

我想让你知道,你不仅仅是化验单上的一个数字。单纯看“总胆固醇”即将结束。.

为了真正保护您的心脏,我们需要同时关注您的颗粒物数量和身体的警报系统。这就像是确保您的交通要道畅通无阻,并且您的居所保持凉爽。.

需要与您的医生讨论的问题: “既然我已经知道了我的低密度脂蛋白胆固醇(LDL-C)水平,我们能顺便检查一下我的 载脂蛋白B 要查看我实际的粒子数量,以及我的 超敏C反应蛋白 看看我的‘烟雾报警器’是否在响?”

深入探讨

载脂蛋白B与全身炎症在动脉粥样硬化性心血管疾病中的相互作用:因果关系、机制与临床范式

动脉粥样硬化的 心血管疾病 (ASCVD)仍然是全球发病率和死亡率的主要原因。几十年来,该领域一直在争论其基本的病理生理学性质 动脉粥样硬化发生. 脂 质 假 说 的 早 期 配 方 视 为 动脉粥样硬化 主要作为一种疾病 胆固醇 动脉壁内蓄积,而随后的病理观察则强调了 巨噬细胞, ,T 细胞以及内部的其他炎性细胞 斑块 助长了另一种相互竞争的观点,即动脉粥样硬化性心血管疾病(ASCVD)主要是一种慢性炎症性疾病。血管生物学的进展,, 遗传学, ,和 临床试验 科学现在表明,这些并不是互相排斥的解释,而是同一个疾病进程中相互交织的各个组成部分。1,12,13,22]

目前的科学和临床共识将动脉粥样硬化表征为一种脂质驱动的炎性疾病。在此模型中,, 载脂蛋白 B (载脂蛋白B)-含 脂蛋白 提供不可或缺的初始侮辱,兼具系统性和局部性 炎症 加剧斑块生长、脆弱性以及破裂风险。换句话说, 病变 始于致动脉粥样硬化的 ApoB 颗粒的滞留,并通过对滞留且修饰的脂质产生适应不良的免疫反应而变得危险。2-5,12,13,21,22]

这篇综述探讨了载脂蛋白B(ApoB)、炎症与动脉粥样硬化性心血管疾病(ASCVD)进展之间的关系。通过追踪斑块起始的因果顺序、回顾从脂质潴留到细胞因子激活的分子途径,并将人类遗传学与主要心血管终点试验相结合,该文构建了一个统一的动脉粥样硬化发病机制模型。其核心论点是:ApoB负荷决定了疾病是否发生,而炎症生物学则对疾病进展的速度以及发生产生重大影响 心肌梗死, 中风, ,或心血管死亡。2-5,6-9,12-18,21]

因果序列:滞留反应假说

为了理解载脂蛋白B(ApoB)与炎症之间的关系,必须确定最初致动脉粥样硬化事件的时间顺序。核心的机制问题是:是升高的含ApoB脂蛋白在局部炎症发生之前引发了动脉粥样硬化,还是炎症首先使动脉壁处于激活状态(致敏),进而允许脂质沉积。目前的证据强力支持这样一种先后顺序:疾病始于动脉对ApoB颗粒的滞留,炎症作为对这些滞留颗粒的生物学反应而产生,随后进一步促进并加重病情。2-5]

组织病理学和实验证据支持 对内质网滞留反应学说 of early atherogenesis. In the classic formulation by Williams and Tabas, the influx and trapping of cholesterol-rich ApoB particles within the arterial 内膜 are the necessary first steps in lesion formation. The later Circulation update on subendothelial lipoprotein retention states directly that the initiating process in atherogenesis is retention of ApoB-containing lipoproteins beneath the 内皮, which then triggers the macrophage- and T-cell-dominated inflammatory response that drives lesion development.[2,3]

This model remains compelling because it integrates arterial biology, 细胞外基质 binding, and clinical observation. The ApoB particle is not merely a passive lipid carrier. 含载脂蛋白B的颗粒 bind arterial wall proteoglycans, especially in vascular regions predisposed to lesion formation. Once trapped, they are exposed to oxidative, enzymatic, and aggregative modification, which converts them into potent inflammatory stimuli. Thus, the earliest event is not generalized inflammation or nonspecific endothelial injury, but focal retention of atherogenic lipoproteins in a susceptible arterial microenvironment.[2-5]

Refuting the “Inflammation-First” Paradigm

Alternative models, most notably the response-to-injury hypothesis, proposed that endothelial injury or pre-existing inflammation must precede lipid deposition. This view gained traction because inflammatory cells are abundant in established plaques and because systemic inflammatory conditions accelerate ASCVD. Yet inflammatory acceleration does not prove inflammatory initiation. The decisive question is whether inflammation, in the absence of sufficient ApoB exposure, can generate a typical cholesterol-rich atheromatous lesion. The balance of evidence suggests that it cannot.[1-3,12,21,22]

Experimental and pathological data indicate that 内皮功能障碍, altered shear stress, and inflammatory activation create a permissive environment for lesion formation, but ApoB burden determines whether lesions actually form and how extensively they progress. Disturbed flow helps explain lesion localization; retained ApoB-containing lipoproteins explain lesion initiation and expansion.[2-5,12,22]

Systemic inflammation nevertheless acts as a powerful disease amplifier. Chronic inflammatory states increase endothelial activation, alter vascular signaling, and accelerate plaque progression. However, in a lipid-poor environment they do not generate the classic cholesterol-laden lesion that defines atherosclerosis. This distinction is clinically important because it explains why anti-inflammatory therapy does not eliminate the need for intensive ApoB lowering.[1,12,13,21,22]

Apolipoprotein B: The Initiating Variable

ApoB exists in 2 major atherogenic isoforms: ApoB48 and ApoB100. ApoB48 is synthesized in the intestine and is present in 乳糜微粒 and their remnants. ApoB100 is synthesized in the liver and is present in very-low-density lipoproteins, intermediate-density lipoproteins, low-density lipoproteins, and 脂蛋白(a) [Lp(a)]. Because each 致动脉粥样硬化颗粒 contains exactly 1 ApoB molecule, plasma ApoB concentration reflects the total number of circulating atherogenic particles. This gives ApoB important conceptual and clinical advantages over LDL-C, which reflects cholesterol mass rather than particle number.[4,15,23,25,28]

The clinical importance of ApoB lies in the fact that atherosclerosis is driven by the number of particles capable of entering and being retained in the arterial wall, not simply the amount of cholesterol they carry. Cholesterol content per particle varies considerably, especially in 胰岛素抵抗, 代谢综合征, ,2型 糖尿病, and hypertriglyceridemia. In such states, LDL-C may underestimate the true burden of atherogenic particles, whereas ApoB captures that burden more directly.[4,23,25,26,28]

Entry of these particles into the arterial wall is driven by the concentration gradient from plasma into the intima. Once inside the 内皮下间隙, structural domains on ApoB facilitate retention by arterial proteoglycans. Retention prolongs particle residence time and creates the substrate for oxidation, aggregation, and immune activation. Without retention, the downstream inflammatory cascade does not develop in its canonical form.[2-5]

Lp(a) deserves special mention within the ApoB family because it combines an LDL-like ApoB-containing particle with apolipoprotein(a), and it appears to contribute both proatherogenic and proinflammatory effects. Genetic and clinical evidence now support Lp(a) as a causal ASCVD 风险因素.[15]

Mechanistic Pathways: From Arterial Retention to Systemic Inflammation

Following 内皮下滞留 of ApoB-containing particles, a coordinated series of biological events transforms focal lipid accumulation into an inflammatory lesion. This pathway links hyperlipidemia to innate immune activation and explains how a clinically silent 脂纹 can evolve into a dangerous plaque.[2,5,10-14,21,22]

Lipoprotein modification

Once retained in the intimal extracellular matrix, ApoB-containing lipoproteins are exposed to oxidative and enzymatic modification. These processes generate 氧化低密度脂蛋白, oxidized phospholipids, and aggregated particles with biological properties distinct from native lipoproteins. Such modified particles act as danger-associated signals within the vessel wall and alter endothelial and myeloid-cell behavior.[2,5,10-14]

These modified lipids are not passive cargo. They become inflammatory ligands that engage vascular and immune cells and sustain lesion evolution. Lp(a), because of its oxidized phospholipid burden, may function as an especially potent inflammatory vehicle after retention.[5,13,15]

Endothelial dysfunction and monocyte recruitment

Modified lipids interact with pattern-recognition pathways and activate inflammatory transcriptional programs in 内皮细胞 and macrophages. This suppresses atheroprotective endothelial signaling and promotes expression of 白细胞黏附 molecules and chemokines, marking the transition from silent lipid retention to active vascular inflammation.[12-14,21,22]

The result is recruitment of circulating monocytes and T lymphocytes into the subendothelial space. Monocytes adhere, migrate across the activated endothelium, and enter a lipid-rich microenvironment that favors differentiation into macrophages. This is the pivotal handoff from a biochemical lesion driven by lipoprotein retention to a cellular lesion dominated by immune effectors.[12-14,21,22]

Macrophage differentiation, foam cell formation, and crystal genesis

Within the intima, monocytes differentiate into macrophages and internalize modified lipoproteins through scavenger receptors. Because these uptake pathways are not adequately downregulated by intracellular cholesterol loading, macrophages continue to engulf lipid and become 泡沫细胞, the hallmark of the early fatty streak.[10-14]

As lipid uptake outpaces cholesterol efflux, intracellular free cholesterol accumulates and can precipitate into 胆固醇结晶. These crystals are now recognized not as inert debris, but as inflammatory triggers that activate innate immune pathways central to plaque progression.[10,11,14]

The NLRP3 Inflammasome and Pyroptosis

The intracellular formation and phagocytosis of cholesterol crystals represent a key mechanistic link between retained lipid and innate immune activation. When macrophages attempt to process cholesterol crystals, lysosomal disruption and associated cellular stress activate the NLRP3炎症小体, a multiprotein danger-sensing complex implicated in atherogenesis.[10,11,14]

Once assembled, NLRP3 activates caspase-1, which cleaves pro-IL-1β and pro-IL-18 into their mature forms and promotes inflammatory cell death pathways. This leads to release of cytokines, proteases, and lipid contents into the extracellular space, contributing to 坏死核心 expansion and plaque destabilization. This is the point at which chronic lipid-storage lesions become actively destabilizing inflammatory lesions.[10,11,14]

This inflammasome-centered model is therapeutically important because it links retained lipid to IL-1β production and provides a mechanistic rationale for interventions such as 卡纳单抗 以及 秋水仙碱.[6,10,11,14,29-32]

The Hepatic Synthesis of C-Reactive Protein

IL-1β release within the plaque amplifies inflammation both locally and systemically. IL-1β stimulates production of 白细胞介素-6(IL-6) and other downstream mediators, and 白介素-6 in turn induces hepatic synthesis of C反应蛋白. Elevated hs-CRP is therefore best understood as a systemic marker of inflammatory signaling arising, at least in part, from inflamed atherosclerotic lesions.[6,12,14,17,18,21,29]

Because CRP sits downstream of the IL-1β/IL-6 axis, it is clinically valuable as a 生物标志物 of inflammatory activity but may not itself be the causal driver of disease.[17,18,21]

The Role of CRP: Biomarker Versus Causal Mediator

Given the strong epidemiologic association between elevated hs-CRP and incident ASCVD, investigators asked whether CRP merely reflects vascular inflammation or directly contributes to atherogenesis. If CRP were causal, CRP itself would be an attractive therapeutic target. If it were only a marker, targeting CRP without affecting upstream pathways would be unlikely to reduce events.[17,18,21]

Evidence from Mendelian randomization

孟德尔随机化 has been central to resolving this issue. Genetic studies of lifelong differences in CRP have generally shown null or near-null associations with coronary disease, whereas Mendelian 随机化 analyses of IL-6 signaling support pathway causality. This pattern strongly suggests that CRP is a downstream biomarker rather than the primary causal mediator.[17,18]

The IL6R Mendelian randomisation analysis is especially informative. Genetic downregulation of IL-6 receptor signaling is associated with lower inflammatory activity, lower downstream CRP, and lower coronary risk, supporting IL-6 pathway causality. This interpretation aligns with later clinical trial data showing benefit from IL-1β inhibition and with the broader view that upstream inflammatory circuitry, not CRP itself, is the relevant therapeutic target.[6,17,18,21]

Evidence from animal models regarding direct CRP effects has been mixed, especially compared with the more consistent genetic and clinical data implicating IL-1β and IL-6. On balance, CRP is best regarded as a high-value clinical biomarker rather than a central therapeutic target.[17,18,21]

Interaction Between ApoB and Inflammation: Landmark Clinical Evidence

Recognition that atherosclerosis depends on both ApoB accumulation and inflammatory amplification led to the modern concept of dual 剩余风险 pathways. Some patients remain at high risk because their atherogenic 颗粒物负荷 remains inadequately controlled. Others achieve major 降脂 but retain substantial inflammatory risk, reflected by elevated hs-CRP or persistent cytokine activation. Landmark trials such as 木星, 坎托斯, ,和 傅里叶 illustrate these complementary pathways.[6-9,29,33]

JUPITER: inflammation in primary prevention

JUPITER enrolled apparently healthy individuals with LDL-C below 130 mg/dL and hs-CRP of at least 2.0 mg/L, thereby selecting a population with modest traditional lipid levels but increased inflammatory risk. 瑞舒伐他汀 reduced both LDL-C and hs-CRP and significantly lowered major cardiovascular events. The trial showed that clinically meaningful cardiovascular risk can exist despite “normal” LDL-C when inflammatory burden is elevated, and that a therapy with both lipid-lowering and anti-inflammatory effects can substantially reduce risk.[7]

CANTOS: isolating the inflammatory hypothesis

CANTOS directly tested whether inflammation reduction independent of lipid lowering improves outcomes. In patients with prior myocardial infarction and persistent hs-CRP elevation despite standard therapy, canakinumab substantially reduced IL-6 and hs-CRP without lowering LDL-C, HDL-C, or ApoB, and reduced recurrent cardiovascular events. Secondary analyses suggested greater benefit in those achieving deeper hs-CRP reduction. CANTOS therefore provided proof of principle that targeted anti-inflammatory therapy can reduce ASCVD events even when lipid levels remain unchanged.[6,29]

FOURIER: persistent inflammatory risk despite ultra-low lipid levels

FOURIER tested intensive lipid lowering with 依洛尤单抗 in patients with established ASCVD. Evolocumab reduced LDL-C dramatically, while hs-CRP remained essentially unchanged. The trial confirmed benefit from deeper lipid lowering, but subsequent analyses demonstrated that hs-CRP and LDL-C remained 独立预测因素 of outcomes. Even at very low LDL-C levels, higher hs-CRP identified higher residual risk. FOURIER thus showed that 残余炎症风险 persists even when lipid risk is driven to very low levels.[8,9,33]

Together, these trials validate a dual-axis model. JUPITER highlighted inflammatory risk in 一级预防, CANTOS showed that selective anti-inflammatory therapy reduces events without lipid lowering, and FOURIER showed that intense lipid lowering leaves a measurable pool of residual inflammatory risk. The implication is not to choose between lipid and inflammation, but to treat both.[6-9,29,33]

Epidemiological Synergy: Insights From UK Biobank and Contemporary Cohorts

Large population analyses complement trial data by showing how ApoB and inflammatory risk interact across broad risk distributions. Contemporary cohort studies and UK Biobank-based analyses indicate that ApoB burden and inflammatory markers often provide complementary information, with the highest event rates often observed when both are elevated. Particularly important are 不协调 analyses showing that ApoB often predicts risk better than LDL-C when the 2 measures disagree.[4,23,25,28]

In metabolic syndrome and hypertriglyceridemia, LDL-C may appear deceptively low because each particle carries less cholesterol, whereas ApoB still reflects the true number of atherogenic particles. Recent cohort work also suggests that ApoB-based approaches can improve risk discrimination relative to cholesterol-based metrics in discordant states.[4,23,25,26,28]

These epidemiologic observations reinforce the mechanistic framework. Elevated ApoB indicates increased opportunity for arterial entry and retention, whereas elevated hs-CRP signals active inflammatory amplification. When both are present, risk rises materially. That does not place CRP on the same causal level as ApoB, but it does support measuring both to refine clinical risk assessment.[4,17,18,23,25,28]

Clinical Implications and 2025 Guideline Perspectives

Modern lipidology increasingly recognizes that because cholesterol mass per 低密度脂蛋白 particle varies, reliance on 总胆固醇 or calculated LDL-C alone can misclassify risk. ApoB directly inventories the circulating atherogenic particles capable of entering the arterial wall. The 2024 Circulation review on ApoB argues for broader clinical use of ApoB because of its stronger biologic alignment with ASCVD causality and its utility in discordant states.[4,23,25,28]

This shift is reflected in contemporary guidance. The 2025 AACE 血脂异常 guideline emphasizes modern risk-based pharmacologic management, while the 2025 focused ESC/EAS update supports earlier and broader use of combination therapy, including 他汀类药物, 依折麦布, 贝普多酸, ,和 PCSK9 inhibition, to reduce atherogenic burden. Although society-specific thresholds differ, the overall direction is consistent: ApoB is gaining prominence as an actionable marker, especially in high-risk and discordant patients.[19,20]

Inflammation has likewise moved from an academic concept to a clinically actionable one. The 2025 ACC scientific statement emphasizes the clinical relevance of inflammation across the ASCVD continuum. hs-CRP remains useful for risk enhancement in selected primary prevention settings and for identifying residual inflammatory risk in 二级预防. Low-dose colchicine has emerged as a practical anti-inflammatory option in selected patients with established ASCVD, and ongoing work on IL-6 pathway modulation and Lp(a)-lowering strategies may further refine treatment.[20,27,30-32,35]

Unresolved Scientific Debates: Defining the Disease

Despite broad convergence, semantic debate persists over whether atherosclerosis is fundamentally lipid driven, inflammatory, or lipid-induced inflammatory. The lipid-centric view is correct in one crucial sense: without ApoB-containing lipoproteins, typical atherosclerosis does not arise. Human genetics, pathology, and lipid-lowering interventions all strongly support this point.[2-5,15,16,23]

Yet a purely lipid-centric model does not fully explain why some patients with excellent lipid control continue to experience 斑块破裂 and recurrent events. Conversely, the inflammation-centric view correctly emphasizes that immune mechanisms dominate plaque destabilization, cap degradation, and rupture, but inflammation in a lipid-poor environment does not produce the classic cholesterol-rich 动脉粥样硬化斑块. The most accurate synthesis is therefore that atherosclerosis is a lipid-induced inflammatory disease: initiated by ApoB retention, then amplified and rendered clinically dangerous by maladaptive innate and adaptive immune responses to retained lipid.[1-3,10-14,21,22,27,29-35]

结论

The pathophysiology of ASCVD requires convergence of 2 closely linked biological axes. Disease begins with influx and subendothelial retention of ApoB-containing lipoproteins within the arterial wall. This establishes the initiating lesion. Progression from a clinically silent fatty streak to a vulnerable, necrotic, rupture-prone plaque depends on inflammatory amplification driven by modified lipids, foam-cell biology, cholesterol crystals, NLRP3 inflammasome activation, and cytokine signaling through IL-1β and IL-6. hs-CRP emerges from this cascade as an informative systemic marker rather than the primary causal agent.[2-5,10-14,17,18,21]

Landmark trials over the past 2 decades have shown that treating the ApoB driver through statins and PCSK9 inhibition and treating the inflammatory amplifier through IL-1β inhibition or colchicine can provide independent and complementary benefit. To reduce 心血管残余风险 meaningfully, contemporary practice must move beyond cholesterol mass alone and assess both atherogenic particle burden and residual inflammatory activity. That dual-risk framework is the clearest practical implication of modern atherosclerosis research.[4,6-9,19,20,27,29-35]

参考文献

  1. Libby P. Inflammation in atherosclerosis. Nature. 2002;420(6917):868-874. doi:10.1038/nature01323
  2. Tabas I, Williams KJ, Borén J. Subendothelial lipoprotein retention as the initiating process in atherosclerosis: update and therapeutic implications.
  3. Williams KJ, Tabas I. The response-to-retention hypothesis of early atherogenesis.
  4. De Oliveira-Gomes D, Joshi PH, Peterson ED, Rohatgi A, Khera A, Navar AM. Apolipoprotein B: Bridging the Gap Between Evidence and Clinical Practice. Circulation. 2024;150(1):62-79. doi:10.1161/CIRCULATIONAHA.124.068885
  5. Borén J, Williams KJ. The central role of arterial retention of cholesterol-rich apolipoprotein-B-containing lipoproteins in the pathogenesis of atherosclerosis: a triumph of simplicity. Curr Opin Lipidol. 2016;27(5):473-483. doi:10.1097/MOL.0000000000000330
  6. Ridker PM, Everett BM, Thuren T, et al. Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease. N Engl J Med. 2017;377(12):1119-1131. doi:10.1056/NEJMoa1707914
  7. Ridker PM, Danielson E, Fonseca FA, et al. Rosuvastatin to prevent vascular events in men and women with elevated C-reactive protein. N Engl J Med. 2008;359(21):2195-2207. doi:10.1056/NEJMoa0807646
  8. Sabatine MS, Giugliano RP, Keech AC, et al. Evolocumab and Clinical Outcomes in Patients with Cardiovascular Disease. N Engl J Med. 2017;376(18):1713-1722. doi:10.1056/NEJMoa1615664
  9. Pradhan AD, Aday AW, Rose LM, Ridker PM. Residual Inflammatory Risk on Treatment With PCSK9 Inhibition and Statin Therapy. Circulation. 2018;138(2):141-149. doi:10.1161/CIRCULATIONAHA.118.034645
  10. Duewell P, Kono H, Rayner KJ, et al. NLRP3 inflammasomes are required for atherogenesis and activated by cholesterol crystals. Nature. 2010;464(7293):1357-1361. doi:10.1038/nature08938
  11. Grebe A, Latz E. Cholesterol crystals and inflammation. Curr Rheumatol Rep. 2013;15(3):313. doi:10.1007/s11926-012-0313-z
  12. Libby P, Ridker PM, Hansson GK; Leducq Transatlantic Network on Atherothrombosis. Inflammation in atherosclerosis: from pathophysiology to practice. J Am Coll Cardiol. 2009;54(23):2129-2138. doi:10.1016/j.jacc.2009.09.009
  13. Tall AR, Yvan-Charvet L. Cholesterol, inflammation and innate immunity. Nat Rev Immunol. 2015;15(2):104-116. doi:10.1038/nri3793
  14. Grebe A, Hoss F, Latz E. NLRP3 Inflammasome and the IL-1 Pathway in Atherosclerosis. Circ Res. 2018;122(12):1722-1740. doi:10.1161/CIRCRESAHA.118.311362
  15. Tsimikas S, Stroes ESG. The dedicated “Lp(a) clinic”: A concept whose time has arrived?. Atherosclerosis. 2020;300:1-9. doi:10.1016/j.atherosclerosis.2020.03.003
  16. Ference BA, Kastelein JJP, Ray KK, et al. Association of Triglyceride-Lowering LPL Variants and LDL-C-Lowering LDLR Variants With Risk of Coronary Heart Disease. JAMA. 2019;321(4):364-373. doi:10.1001/jama.2018.20045
  17. Zacho J, Tybjaerg-Hansen A, Jensen JS, Grande P, Sillesen H, Nordestgaard BG. Genetically elevated C-reactive protein and ischemic vascular disease. N Engl J Med. 2008;359(18):1897-1908. doi:10.1056/NEJMoa0707402
  18. Interleukin-6 Receptor Mendelian Randomisation Analysis (IL6R MR) Consortium, Swerdlow DI, Holmes MV, et al. The interleukin-6 receptor as a target for prevention of coronary heart disease: a mendelian randomisation analysis. Lancet. 2012;379(9822):1214-1224. doi:10.1016/S0140-6736(12)60110-X
  19. Mach F, Koskinas KC, Roeters van Lennep JE, et al. 2025 Focused Update of the 2019 ESC/EAS Guidelines for the management of dyslipidaemias. Eur Heart J. 2025;46(42):4359-4378. doi:10.1093/eurheartj/ehaf190
  20. Patel SB, Wyne KL, Afreen S, et al. American Association of Clinical Endocrinology Clinical Practice Guideline on Pharmacologic Management of Adults With Dyslipidemia. Endocr Pract. 2025;31(2):236-262. doi:10.1016/j.eprac.2024.09.016
  21. Ridker PM. From C-Reactive Protein to Interleukin-6 to Interleukin-1: Moving Upstream To Identify Novel Targets for Atheroprotection. Circ Res. 2016;118(1):145-156. doi:10.1161/CIRCRESAHA.115.306656
  22. Hansson GK, Hermansson A. The immune system in atherosclerosis. Nat Immunol. 2011;12(3):204-212. doi:10.1038/ni.2001
  23. Sniderman AD, Thanassoulis G, Glavinovic T, et al. Apolipoprotein B Particles and Cardiovascular Disease: A Narrative Review. JAMA Cardiol. 2019;4(12):1287-1295. doi:10.1001/jamacardio.2019.3780
  24. Aday AW, Ridker PM. Targeting Residual Inflammatory Risk: A Shifting Paradigm for Atherosclerotic Disease. Front Cardiovasc Med. 2019;6:16. Published 2019 Feb 28. doi:10.3389/fcvm.2019.00016
  25. Mora S, Buring JE, Ridker PM. Discordance of low-density lipoprotein (LDL) cholesterol with alternative LDL-related measures and future coronary events. Circulation. 2014;129(5):553-561. doi:10.1161/CIRCULATIONAHA.113.005873
  26. Arsenault BJ, Després JP, Stroes ES, et al. Lipid assessment, metabolic syndrome and coronary heart disease risk. Eur J Clin Invest. 2010;40(12):1081-1093. doi:10.1111/j.1365-2362.2010.02357.x
  27. Mensah GA, Arnold N, Prabhu SD, Ridker PM, Welty FK. Inflammation and Cardiovascular Disease: 2025 ACC Scientific Statement: A Report of the American College of Cardiology. J Am Coll Cardiol. Published online September 29, 2025. doi:10.1016/j.jacc.2025.08.047
  28. Sniderman AD, Dufresne L, Pencina KM, Bilgic S, Thanassoulis G, Pencina MJ. Discordance among apoB, non-high-density lipoprotein cholesterol, and triglycerides: implications for cardiovascular prevention. Eur Heart J. 2024;45(27):2410-2418. doi:10.1093/eurheartj/ehae258
  29. Ridker PM, MacFadyen JG, Everett BM, et al. Relationship of C-reactive protein reduction to cardiovascular event reduction following treatment with canakinumab: a secondary analysis from the CANTOS randomised controlled trial. Lancet. 2018;391(10118):319-328. doi:10.1016/S0140-6736(17)32814-3
  30. Nidorf SM, Fiolet ATL, Mosterd A, et al. Colchicine in Patients with Chronic Coronary Disease. N Engl J Med. 2020;383(19):1838-1847. doi:10.1056/NEJMoa2021372
  31. Nidorf SM, Eikelboom JW, Budgeon CA, Thompson PL. Low-dose colchicine for secondary prevention of cardiovascular disease. J Am Coll Cardiol. 2013;61(4):404-410. doi:10.1016/j.jacc.2012.10.027
  32. Tardif JC, Kouz S, Waters DD, et al. Efficacy and Safety of Low-Dose Colchicine after Myocardial Infarction. N Engl J Med. 2019;381(26):2497-2505. doi:10.1056/NEJMoa1912388
  33. O’Donoghue ML, Fazio S, Giugliano RP, et al. Lipoprotein(a), PCSK9 Inhibition, and Cardiovascular Risk. Circulation. 2019;139(12):1483-1492. doi:10.1161/CIRCULATIONAHA.118.037184
  34. Ference BA, Kastelein JJP, Ginsberg HN, et al. Association of Genetic Variants Related to CETP Inhibitors and Statins With Lipoprotein Levels and Cardiovascular Risk. JAMA. 2017;318(10):947-956. doi:10.1001/jama.2017.11467
  35. Du Z, Li F, Jiang L, et al. Metabolic systems approaches update molecular insights of clinical phenotypes and cardiovascular risk in patients with homozygous familial hypercholesterolemia. BMC Med. 2023;21(1):275. Published 2023 Jul 27. doi:10.1186/s12916-023-02967-8

透明度说明: 本博文借助了人工智能工具生成。最终内容已经过作者的仔细审阅和编辑,作者对内容的准确性负责。所提供的信息仅供教育参考,不构成医疗建议。.

AI应用

心脏风险计算器

带有H评分洞察、可视化家谱输入和可分享PDF报告的教育型家族病史心脏风险计算器。.

在此阅读为什么这款应用如此重要。.