血清ウラートと再発性痛風

Natalie McCormick^1,2,3,4, Chio Yokose^1,2,3, Gregory J Challener^3,5

¹Rheumatology & Allergy Clinical Epidemiology Research Center, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Boston.

JAMA

|February 6, 2024

まとめ

病歴のある患者の血清ウラート濃度の上昇は,将来の痛風発作と入院を有意に予測する. 血清尿酸値の上昇は,再発性痛風と関連する入院リスクの上昇と強く関連しています.

科学分野:

リウマトロジ
臨床流行病学
生物化学

背景:

痛風は何百万人もの人に影響しますが発作の再発を予測するのは難しいことです
血清ウラート濃度の予測値を理解することは,痛風の管理に極めて重要です.

研究の目的:

血清尿酸の単一の測定と痛風の発症リスクとの関連を評価する.
血清ウラート濃度と痛風関連の入院の関連性を評価する.

主な方法:

イギリスのプライマリーケアと病院のデータを用いた遡及コホート研究 (2006-2020).
ゲート病歴のある患者を含め,血清ウレート濃度をベースラインに分析した.
痛風の再発と入院は,ネガティブ・バイノミアル・リグレッションを用いて分析された主要なアウトカムでした.

主要な成果:

血清ウラート濃度と痛風発症率との間に強い正の相関が観察された.
血清ウラート濃度 (≥6 mg/ dL) の上昇は,急性痛風の発症と入院のリスクを大幅に増加させた.
血清ウラート濃度が1mg/dL増加するごとに,発作と入院のリスクは大幅に増加した.

結論:

血清尿酸の基準値は,再発性痛風と入院の有意な予測因子です.
これらの発見は,痛風の管理におけるリスクの分層化のための血清ウラート測定の使用を支持する.
血清尿酸の単一の測定は,痛風の再発リスクの長期的評価に情報を提供することができます.

さらに関連する動画

07:45

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis

Published on: February 9, 2021

3.6K

08:53

Recurrent Escherichia coli Urinary Tract Infection Triggered by Gardnerella vaginalis Bladder Exposure in Mice

Published on: December 4, 2020

6.1K

関連する概念動画

01:24

Physiology of Urine Formation

4.0K

Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...

4.0K

01:16

Antihypertensive Drugs: Action of Diuretics

694

Diuretics are antihypertensive drugs used to treat hypertension resulting from sodium and water retention. Sodium, vital for fluid balance and nerve or muscle function, is regulated by the kidneys through millions of nephrons. Blood enters nephrons via afferent arterioles, which branch into capillaries called glomeruli. These filter blood plasma, allowing water and solutes, like sodium ions, to pass through capillary walls into Bowman's capsule. The filtrate then flows through various...

694

01:28

Renal Drug Excretion: Tubular Secretion

185

Active tubular secretion is a robust, energy-demanding process that utilizes carrier systems to transport drugs into renal tubules. The active renal secretion systems include the organic anion transporter (OAT) for weak acids and the organic cation transporter (OCT) for weak bases. Structurally similar drugs can compete for the same transporter, potentially leading to drug accumulation and toxicity. However, this principle can be exploited therapeutically. One example is probenecid (Probalan),...

185

01:24

Phase II Reactions: Glucuronidation

428

Glucuronidation, a pivotal phase II biotransformation process, involves the coupling of glucuronic acid to a drug or xenobiotic. Given its widespread occurrence and critical role in drug metabolism, it's considered the most crucial phase II reaction. It enhances the water solubility of substances, aiding their expulsion from the body. The driving force behind these reactions is a group of enzymes known as UDP-glucuronosyltransferases (UGTs). UGTs facilitate the transfer of a glucuronic acid...

428

01:17

Factors Affecting Renal Clearance: Renal Impairment

Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...

01:20

Renal Corpuscle

2.2K

The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...