摘要
目的:探讨持续性变应性鼻炎(AR)患者白三烯D4合成酶(LTD4S)基因多态性及其与抗白三烯治疗反应性的关系。方法:选取持续性AR患者150例,其中男87例,女63例,年龄(38±14)岁。健康对照者146例,其中男78例,女68例,年龄(39±12)岁。应用聚合酶链反应-限制性片段长度多态性方法(RELP)检测LTD4SA-444C基因多态性及等位基因的频率。治疗组采用白三烯受体拮抗剂孟鲁司特单药治疗4周,分别于治疗前后采用酶联免疫吸附法测定尿白三烯D4(LTD4)水平,根据症状、体征积分变化及尿LTD4水平评价抗白三烯治疗的反应性。应用多元方差分析法检测LTD4S基因-444C等位基因频率与治疗反应性的相关性。结果:①AR组中LTD4S基因-444位点基因型AA、AC/CC频率分别为70.7%(106/150)和29.3%(44/150),等位基因A、C频率分别为67.3%(101/150)和32.7%(49/150),健康对照组LTD4S基因-444位点基因型AA、AC/CC频率分别为76.7%(112/146)和23.3%(34/146),等位基因A、C频率分别为74.0%(108/146)和26.0%(38/146),差异无统计学意义。②150例AR患者中,基因型AC/CC患者较AA型患者年轻(分别为35±9、50±8岁,F=5.891,P<0.05),起病较早(分别为31±4、46±6岁,F=6.985,P<0.05),病程较长(分别为8.7±2.1、3.1±2.0年,F=11.43,P<0.05),症状评分(8.2±0.2、4.8±0.3.t=6.95,P<0.05)、体征评分(7.3±3.3、3.4±5.1,t=8.89,P<0.05)更高,2组差异有统计学意义。③150例AR患者应用孟鲁司特钠治疗4周后,基因型AC/CC患者对抗白三烯治疗的反应性优于AA型(F=11.01,P<0.05),2组患者治疗反应的差异与体内LTD4水平有关,与临床症状、体征相关。结论:襄阳地区汉族人群中LTD4SA-444C基因多态性可能与持续性AR患者应用白三烯受体拮抗剂的临床反应性相关。
Objective:To investigate the leukotriene D4 synthase gene A(LTD4S A)-444 C polymorphism in persistent allergic rhinitis(AR) of Chinese Han nationality and to evaluate its relevance to clinical responsiveness of leukotriene receptor antagonist. Method:There were 150 patients [87 males, 63 females, average age (38±14)] diagnosed with persistent AR in Allergy clinic in our hospital from March 2010 to March 2012; 146 healthy con- trols (78 males, 68 females, mean age (39±12)). We detected LT D4SA-444C polymorphism and allele frequen- cies with Polymerase Chain Reaction(PCR) and-Restriction Fragment Length polymorphism (RELP). The treat- ment group received monotherapy leukotriene receptor antagonist (montelukast) for 4 weeks. Urinary leukotriene D4 (LTD4) levels were detected by enzyme-linked immunosorbent assay (ELISA) before and after treatment, re spectively. We evaluated anti-leukotriene treatment response according to the changement of symptoms, signs PTS and urinary LTD4. We tested correlation between LT D4S gene-444C allele frequency and the treatment re-sponse by multivariate analysis of variance. Result: O LTD4S gene-444 genotype AA/CC, AC/CC frequency is 70.7% (106/150) and 29.3% (44/150), allele A, C frequencies is 67.3% (101/150) and 32.7% (49/150) in AR group, and LTD4S gene-444 genotype AA/CC, AC/CC frequency is 76.7% (112 /146) and 23.3% (34/ 146), allele A, C frequencies is 74.0% (108/146) and 26.0% (38/146) in healthy control group, there is not statistically significant difference between two groups.Among 150 AR patients, compared to patients with AA/CC genotype, the genotype AC/CC patients are younger[average age (35±9), and (50 Jr 8) respectively, F= 5. 891, P〈0.05], with earlier age of onset [ (31±4), and (46±6) respectively, F=6. 985, P〈0.05], longer course of disease [ (8.7±2.1), and (3.1±2.0) respectively, F: 11.43, P〈0.05 ], higher symptom scores (8.2±0.2; 4.8±0.3), highe
出处
《临床耳鼻咽喉头颈外科杂志》
CAS
北大核心
2014年第14期1020-1024,共5页
Journal of Clinical Otorhinolaryngology Head And Neck Surgery
基金
科技部十一五科技支撑计划子课题(No:2007BAI18B15)
湖北省自然科学基金(No:2011CDB320)
湖北省卫生厅项目(No:JX5C26)
关键词
鼻炎
变应性
白三烯D4
多态性
限制性片段长度
遗传药理学
rhinitis,allergic
leukotriene D4
polymorphism, restriction fragment length
pharmacogenetics