慢性咳嗽患者的血清LDH:气道炎症的潜在标志物
2011/08/12
摘要
前言和目的:乳酸脱氢酶(LDH)几乎可见于机体所有组织,目前已知的有5种LDH同工酶(LDH1-5)。诸多病理情况下存在着LDH水平增加。我们的研究显示,慢性咳嗽患者血清LDH水平增加。本试验旨在证实该结果,并研究血清LDH检测的可重复性和LDH来源。
方法:对在Hull咳嗽门诊就诊的患者检测血清特异性LDH同工酶和总LDH水平。一个亚组患者同时检测检测血清肌酐磷酸激酶(CK)。对患者咳嗽症状进行评分,并采用Hull气道反射问卷(HARQ)进行调查。同时进行肺活量检测。
结果:83名患者入选研究。42%的患者LDH高于参考值,78%的患者LDH值位于或高于参考值的第4个四分位间距。LDH水平的升高主要归因于同工酶4和5的增加。LDH增加在8周内检测具有可重复性。10%的患者CK水平高于正常范围。LDH值与咳嗽评分、HARQ评分和肺功能之间无显著关联。
结论:血清LDH水平在相当一部分慢性咳嗽患者中有所升高。LDH水平升高可能与导致慢性咳嗽的气道炎症有关。
(陈欣 审校)
Clin Respir J. 2011 Jun 8. doi: 10.1111/j.1752-699X.2011.00250.x. [Epub ahead of print]
Serum LDH in chronic cough: a potential marker of airway inflammation.
Faruqi S, Wilmot R, Wright C, Morice A.
Source
Division of Cardiovascular and Respiratory Studies, Castle Hill Hospital, University of Hull, Hull York Medical School, Cottingham, UK. Department of Biochemistry, Hull Royal Infirmary, Hull, UK.
Abstract
INTRODUCTION AND OBJECTIVES: Lactate dehydrogenase (LDH) is found in almost all tissues of the body and five different isoenzymes are known (LDH-1 to LDH-5). LDH can be elevated in many pathological conditions. We have observed serum LDH to be increased in patients with chronic cough. We wanted to confirm this finding, study the reproducibility and determine the origin of the LDH. METHODS: Patients prospectively seen at the Hull Cough Clinic had total and specific LDH isoenzyme levels in serum determined. A subgroup of patients also had a serum creatine phosphokinase (CK) measured. Patients completed cough symptom scores and the Hull Airway Reflux Questionnaire (HARQ). Spirometry was performed.
RESULTS: Eighty three patients were included. Forty two percent had LDH values above the reference range and 78% had LDH values in the fourth quartile of the reference range or above. This increase in LDH was predominantly due a rise in isoenzymes 4 and 5. The increase in LDH was found to be reproducible at eight weeks. Ten percent had CK values above the normal range. There was no correlation observed between LDH values and the cough scores, HARQ scores or lung function.
CONCLUSION: Serum LDH levels are elevated in a substantial proportion of patients with chronic cough. This rise is likely to be due to airway inflammation known to be associated with chronic cough.
Clin Respir J. 2011 Jun 8. doi: 10.1111/j.1752-699X.2011.00250.x. [Epub ahead of print]
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咳嗽能预测特发性肺纤维化的预后
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