间质性肺疾病患者血清和支气管肺泡灌洗液中内皮素1活性的变化

目的评价内皮素对肺纤维化发生、发展作用的影响。方法利用同位素放射免疫直接测定法,检测１０例肺结节病和８例特发性肺纤维化（ＩＰＦ）患者外周血和支气管肺泡灌洗液（ＢＡＬＦ）中内皮素１（ＥＴ１）的活性,并与８名健康非吸烟者进行对照。结果肺结节病和ＩＰＦ患者血清和ＢＡＬＦ中的ＥＴ１活性分别为（６２±２９）ｎｇ／Ｌ,（１７０±２４）ｎｇ／Ｌ和（７７±７１）ｎｇ／Ｌ、（１０±３）ｎｇ／Ｌ,与正常对照组（２０±８）ｎｇ／Ｌ、（４０±０６）ｎｇ／Ｌ比较,差异有显著性（Ｐ＜００１）;血清中ＥＴ１活性与动脉血氧分压（ＰａＯ２）呈明显负相关（ｒ＝－０５３８,Ｐ＜００１）;结节病组和ＩＰＦ组ＢＡＬＦ中的ＥＴ１水平与ＢＡＬＦ中细胞总数呈正相关（ｒ＝０６４９,Ｐ＜００１）,肺结节病患者、ＩＰＦ患者ＢＡＬＦ中ＥＴ１与淋巴细胞、中性粒细胞呈正相关（ｒ＝０７１２,０８１３,Ｐ均＜００１）。结论ＥＴ１在肺结节病和ＩＰＦ发病机制中起着重要作用,并可作为疾病活动性判定的一项重要参考指标。     

间质性肺疾病支气管肺泡灌洗液中性粒细胞趋化因子和肿瘤坏死因子水平及其临床意义

目的探讨间质性肺疾病（ＩＬＤ）时中性粒细胞趋化因子（ＮＣＦ）和肿瘤坏死因子（ＴＮＦα）与ＩＬＤ活动性的关系。方法用膜滤过和放射免疫法检测１１例结节病、７例特发性肺间质纤维化（ＩＰＦ）患者和８名健康者血清及支气管肺泡灌洗液（ＢＡＬＦ）中ＮＣＦ活性及ＴＮＦα水平。结果７例ＩＰＦ患者ＢＡＬＦ中ＮＣＦ、ＴＮＦα分别为２０３±４４ｃｅｌｓ／１０ＨＰ、１１７±２９ｎｇ／Ｌ，明显高于８名对照组（８３±４５ｃｅｌｓ／１０ＨＰ、６５±１４ｎｇ／Ｌ、Ｐ＜０．０１）；１１例结节病患者ＢＡＬＦ中ＮＣＦ、ＴＮＦα分别为１８６±５０ｃｅｌｓ／１０ＨＰ、１２±３ｎｇ／Ｌ，明显高于８名对照组（Ｐ＜０．０１）。ＩＰＦ组ＢＡＬＦ中ＮＣＦ、ＴＮＦα均与中性粒细胞百分比呈正相关（ＮＣＦ：ｒ＝０．８９，Ｐ＜０．０１，ＴＮＦα：ｒ＝０．８６，Ｐ＜０．０５），结节病组ＢＡＬＦ中ＮＣＦ、ＴＮＦα均与淋巴细胞百分比呈正相关（ＮＣＦ：ｒ＝０．７８，Ｐ＜０．０１；ＴＮＦα：ｒ＝０．７３，Ｐ＜０．０１）。结论ＩＰＦ和结节病患者ＢＡＬＦ中ＮＣＦ、ＴＮＦα水平可做为肺泡炎活动性的标志     

间质性肺疾病支气管肺泡灌洗液的酶活性研究

目的探讨支气管肺泡灌洗液（ＢＡＬＦ）多项酶活性与间质性肺疾病（ＩＬＤ）的关系。方法检测３０例ＩＬＤｓ：包括特发性肺纤维化（ＩＰＦ）１８例和结节病（Ｓａｒｃ）１２例与９例正常对照者的ＢＡＬＦ中超氧化歧化酶（ＳＯＤ）、谷胱甘肽过氧化物酶（ＧＳＨ－ＰＸ）、血管紧张素转换酶（ＡＣＥ）和乳酸脱氢酶（ＬＤＨ）活性，并分类计数ＢＡＬＦ细胞成份。结果（１）ＩＰＦ组ＢＡＬＦ中各项酶活性均与对照组间差异有显著性（ＳＯＤ和ＧＳＨ－ＰＸ降低，ＡＣＥ和ＬＤＨ升高）（Ｐ＜０．０５）；而Ｓａｒｃ组仅见ＡＣＥ明显增高（Ｐ＜０．０５）。（２）ＢＡＬＦ－ＡＣＥ与Ｓａｒｃ组淋巴细胞百分比及ＣＤ＋４／ＣＤ＋８比值均有显著线性相关（Ｐ＜０．０５）。结论ＢＡＬＦ中ＳＯＤ、ＧＳＨ－ＰＸ、ＡＣＥ和ＬＤＨ活性测定，有助于进一步探讨ＩＬＤ发病机理和提供辅助诊断依据，ＢＡＬＦ－ＡＣＥ对判断Ｓａｒｃ活动性有重要临床意义。     

肺结节病支气管肺泡灌洗液中肿瘤坏死因子和中性粒细胞趋化因子水平及临床意义

目的评价肺内炎症免疫效应细胞释放的细胞因子对肺结节病发病机理的影响。方法利用微孔滤膜和酶联免疫法,检测１１例肺结节病和７例特发性肺纤维化（ＩＰＦ）患者血清和支气管肺泡灌洗液（ＢＡＬＦ）中肿瘤坏死因子（ＴＮＦα）和中性粒细胞趋化因子（ＮＣＦ）水平,并与８名健康非吸烟者对照。结果肺结节病和ＩＰＦ患者ＢＡＬＦ中的ＴＮＦα为１１．９±３．２、１１．７±３．０ｎｇ·Ｌ１,ＮＣＦ水平以每１０个高倍视野细胞数表示,为１９１±５１、２０３±４４,明显高于正常对照组的６．５±１．４ｎｇ·Ｌ１和８２．５±４５．４（Ｐ＜０．０１）。肺结节病患者ＢＡＬＦ中ＴＮＦα与淋巴细胞、ＩＰＦ患者ＮＣＦ与中性粒细胞呈明显正相关（ｒ＝０．７３和ｒ＝０．８９Ｐ＜０．０１）。结论ＴＮＦα和ＮＣＦ在肺结节病和ＩＰＦ发病机理中起着重要作用,并可作为判定疾病活动性的一项重要参考指标。     

肺结节病支气管—肺泡灌洗液中血管紧张素转换酶与T淋巴细…

应用笠原法检测１９例肺结节病患者支气管－肺泡灌洗液中血管紧张素转换酶（ＢＡＬＦ－ＡＣＥ）水平，并将灌洗液中的淋巴细胞％，Ｔ辅助细胞／Ｔ抑制细胞（Ｔｈ／Ｔｓ）比值与ＢＡＬＦ－ＡＣＥ含量进行相关分析，结果二者之间有明显正相关（γ＝０.４４５３，校迹埃埃岛挺茫剑埃罚埃福担校迹埃埃保；疃苑谓峤诓∷婕に刂瘟撇∏楹米拢粒蹋疲粒茫潘街鸾ハ陆怠Ｌ崾荆拢粒蹋疲粒茫攀钦锒戏谓峤诓〖芭卸ㄆ浠疃杂     

间质性肺疾病支气管肺泡灌洗液中FN和IgG的临床研究

同步检测并对比１１例正常对照者和２５例间质性肺疾病（ＩＬＤ）病人支气管肺泡灌洗液（ＢＡＬＦ）和外周血中纤维连接素（ＦＮ）和ＩｇＧ水平并探讨其意义。结果表明：（１）正常人ＢＡＬＦ和外周血中ＦＮ水平相近（Ｐ＞０．０５）；ＩＬＤ病人ＢＡＬＦ中ＦＮ水平明显增加，并高于其血浆中ＦＮ水平（Ｐ＜０．０１），而各组血浆ＦＮ水平相近（Ｐ＞０．０５）。（２）ＩＬＤ病人ＢＡＬＦ中ＩｇＧ水平明显增加，外周血中ＩｇＧ水平也略有增加。（３）ＩＬＤ病人ＢＡＬＦ中ＦＮ、ＩｇＧ均与细胞总数呈正相关，其中ＩＰＦ组ＢＡＬＦ中ＦＮ与中性粒细胞（％）呈正相关（Ｐ＜０．０５），非ＩＰＦ组ＢＡＬＦ中ＦＮ、ＩｇＧ均与淋巴细胞（％）呈正相关（ＦＮ：Ｐ＜０．０１；ＩｇＧ：Ｐ＜０．０５）。（４）ＩＬＤ病人ＢＡＬＦ中ＦＮ和ＩｇＧ之间呈明显的正相关（Ｐ＜０．０１）。以上结果提示：ＩＬＤ病人ＢＡＬＦ中ＦＮ水平明显增加，它可作为ＩＬＤ肺泡炎活动性的一个标志，而ＢＡＬＦ中ＩｇＧ水平增高可能反映ＩＬＤ体液免疫活动性的一个侧面。     

特发性肺纤维化患者支气管肺泡灌洗液谷胱甘肽和透明质酸的检测

应用生化法和放射免疫分析法分别检测了不吸烟的１０例特发性肺纤维化（ＩＰＦ）患者和６例正常对照者支气管肺泡灌洗液（ＢＡＬＦ）和血中谷胱甘肽（ＧＳＨ）及透明质酸（ＨＡ）水平，以判断氧自由基代谢异常与肺纤维化的关系。结果：①ＩＰＦ患者ＢＡＬＦ中ＧＳＨ水平明显低于正常对照组（Ｐ＜０．０５）；②ＩＰＦ患者ＢＡＬＦ中ＨＡ水平明显高于正常对照组（Ｐ＜０．０５），且与嗜中性粒细胞计数呈显著正相关（ｒ＝０．６３４，Ｐ＜０．０５）；③血中ＧＳＨ和ＨＡ含量在病变组和对照组无明显差别。说明肺组织局部ＧＳＨ降低对肺纤维化形成有一定作用，ＢＡＬＦ中ＨＡ测定对判定肺泡炎程度有一定意义。     

老年男性冠心病患者血清硫酸脱氢表雄酮含量变化的临床意义

目的观察老年男性冠心病患者血清硫酸脱氢表雄酮（ＤＨＥＡ－Ｓ）含量变化，探讨其与睾酮（Ｔ）、胰岛素（ＩＮＳ）、血糖（Ｇｌｕ）、甘油三酯（ＴＧ）、总胆固醇（ＴＣ）、载脂蛋白Ｂ（ａｐｏＢ）及年龄的相关性。方法用放免法测定６９例老年男性冠心病患者血清ＤＨＥＡ－Ｓ含量，并与３５例年龄匹配的男性健康人对照。结果冠心病组ＤＨＥＡ－Ｓ含量（２．９６±１．８０μｍｏｌ／Ｌ）显著低于对照组（４．０６±１．７６μｍｏｌ／Ｌ，Ｐ＜０．０１），病情重组（２．４４±１．３６μｍｏｌ／Ｌ）又明显低于病情轻组（３．３２±２．１２μｍｏｌ／Ｌ，Ｐ＜０．０５）；冠心病组ＤＨＥＡ－Ｓ含量与年龄呈负相关（ｒ＝－０．３０５４，Ｐ＜０．０１），对照组两者也呈负相关（ｒ＝－０．３６１５，Ｐ＜０．０５）；冠心病患者ＤＨＥＡ－Ｓ降低与空腹血清ＩＮＳ、ＴＧ及ａｐｏＢ增高均呈负相关（分别为ｒ＝－０．３２９７、－０．２５１９及－０．２４１３，Ｐ＜０．０１或０．０５）。结论老年男性冠心病患者血清ＤＨＥＡ－Ｓ含量降低，并与冠心病某些危险因素如老年、高胰岛素血症、高甘油三酯血症、血清ａｐｏＢ高值相关，但其确切的发病机理有待深入研究。     

腹膜透析效能的判断及影响因素分析

目的：探讨各种判断腹透效能的指标在临床运用中的意义。方法：前瞻性观察４４例ＣＡＰＤ患者在透析过程中尿素ＫＴ／Ｖ（ＫＴ／Ｖ）、肌酐清除率（ＣＣｒ）、血浆白蛋白（Ａｌｂ）及氮表现的蛋白质水平（ｎＰＮＡ）的变化及彼此间的相关性。结果：４４例患者９４例次的观察显示，ＫＴ／Ｖ与ＣＣｒ在判断透析效能上有明显差异，ＫＴ／Ｖ更大程度上与透析剂量呈正相关，ＫＴ／Ｖ＝１．１６＋０．０００１１×透析剂量（ｒ＝０．２７Ｐ＜０．０５）、与患者的体表面积呈负相关（ｒ＝－０．５９，Ｐ＜０．０１），而ＣＣｒ则与患者的残余肾功能（ＲＲＦ）呈正相关，ＣＣｒ＝４９．３＋１０．２３×ＲＲＦ（ｒ＝０．８４，Ｐ＜０．００１），而与透析时间呈负相关（ｒ＝－０．３６，Ｐ＜０．０５）。此外，ｎＰＮＡ水平的变化与ＫＴ／Ｖ及ＣＣｒ呈正相关（ｒ＝０．２６～０．３３，Ｐ＜０．０５），Ａｌｂ与ＫＴ／Ｖ呈明显相关（ｒ＝０．４０，Ｐ＜０．０１）。结论：尿素ＫＴ／Ｖ和ＣＣｒ完全可以作为反映透析效能的可靠指标，若结合Ａｌｂ及ｎＰＮＡ观察，则更能反映患者的情况。此外，本文还观察到若根据体表面积计算透析液量，不仅可以精确地计算透析需求量，而且还能预测透析效能，减少合并症的产     

慢性肾衰患者血清及尿液γ-干扰素的检测及其意义

采用ＥＬＩＳＡ双抗体夹心法检测７１例慢性肾衰（ＣＲＦ）患者及４０例健康成人血及尿的γ－干扰素（ＩＦＮ－γ）水平。结果显示：ＣＲＦ患者血清及尿液ＩＦＮ－γ含量分别为（６２６２±２．６８）ｎｇ／Ｌ和（４３．０１±２．５７）ｎｇ／Ｌ，显著低于正常对照组，［（１０５±７．１０）ｎｇ／Ｌ和（７５±６．１４）ｎｇ／Ｌ］（Ｐ＜０００１），但与尿素氮（ＢＵＮ）及血清肌酐（Ｓｃｒ）无显著相关性（血清及尿ＩＦＮ－γ与ＢＵＮ、Ｓｃｒ相关系数分别是ｒ＝０．２４２５、０３０５６、０１５３３和０１７５０，Ｐ＞００５）。结论：ＩＦＮ－γ作为一种细胞因子参与肾脏病发生、发展过程中的网络调节，血清及尿液中ＩＦＮ－γ水平受到机体Ｔ淋巴细胞及ＮＫ细胞数量及功能影响。     

Angiotensin Converting Enzyme in Sarcoidosis and in Silicosis

Angiotensin converting enzyme(ACE) activities of broncho-alveolar lavage fluid(BALF) and serum in patients with sarcoidosis and with silicosis were measured. Serum ACE was measured by enzymic assay and radioimmunoassay. There was a close relationship between ACE activity and content (r=0.78). Serum ACE activities in patients with active sarcoidosis (37.5 ± 11.1 nmol/min/ml, mean ± SD) and with silicosis (25.5 ± 9.3) were significantly elevated from the control (18.6 ± 6.0). BALF ACE activities in the control, patients with active sarcoidosis and with silicosis were 0.23 ± 0.19 nmol/min/ml, 0.94 ± 0.97 and 0.38 ± 0.05, respectively. BALF ACE in patients with active sarcoidosis and with silicosis were significantly different from the control. When BALF ACE was corrected by the cell count of alveolar macrophage (per 10⁶ cells), activity was significantly different from control only in the patients with sarcoidosis. Moreover, only the alveolar macrophages in sarcoidosis were stained by immunofluorescence and immunocytochemistry using rabbit anti-human ACE antibody. Induction of ACE in alveolar macrophage might have an important role for the activity or progression of sarcoidosis.     

特发性肺纤维化和结节病患者基质金属蛋白酶的变化及其临床意义

目的 探讨特发性肺纤维化(IPF)和结节病患者基质金属蛋白酶(MMP)-1和MMP-7的变化及其临床意义. 方法 经临床确诊的IPF患者44例为IPF组,其中男23例、女21例,年龄46～70岁,平均(58±9)岁;Ⅱ期结节病患者20例为结节病组,其中男9例、女11例,年龄35～65岁,平均(50±12)岁.均进行肺功能和支气管肺泡灌洗检查.采用酶联免疫吸附试验测定血清和BALF中MMP-1和MMP-7水平.非正态分布的计量资料以中位数表示,采用两个独立样本比较的Wilcoxon秩和检验进行统计学分析,采用Spearson相关性检验进行相关分析. 结果 IPF组患者血清和BALF中MMP-1中位数(范围)分别为3.78(0.14～13.44)和1.09(0.04～5.14)μg/L,均明显低于结节病组的7.79(4.67μ10.68)和2.08(0.05μ4.16) μg/L,两组血清中MMP-1水平的差异有统计学意义(z=-3.53,P<0.01);IPF组患者血清和BALF中MMP-7中位数(范围)分别为7.83(3.57～14.37)和3.75(1.10～9.87)μg/L,均明显高于结节病组的4.04(0.06～9.94)和1.16(0.02～4.47)μg/L,两组血清和BALF中MMP-7水平的差异均有统计学意义(z值分别为-3.84和-5.33,均P<0.01).IPF组患者血清中MMP-7水平与DLCO占预计值%和BALF中性粒细胞构成比呈显著负相关(r值分别为-0.56和-0.47,均P<0.01),IPF组患者BALF中MMP-7水平与DLCO占预计值%呈显著负相关(r=-0.31,P<0.05). 结论 在肺纤维化炎症细胞浸润阶段MMP-1水平高于纤维化阶段,在纤维化基质重塑阶段MMP-7水平高于炎症阶段.MMP-7有可能作为肺纤维化严重程度的参考指标.     

Interrelationship between bronchoalveolar lavage cellular constituents and pulmonary functions in sarcoidosis

Bronchoalveolar lavage (BAL) using a fiberoptic bronchoscope was done in 36 patients with sarcoidosis on 45 occasions and in 19 control subjects over a period of seven years. Total cell, polymorphonuclear cell and eosinophil cell counts of bronchoalveolar lavage fluid (BALF) in patients with sarcoidosis were not significantly different from control subjects. However, lymphocyte count (% total cells) in BALF was significantly higher (P less than 0.001) in patients with sarcoidosis as compared to control subjects. Alveolar macrophage was the predominant cell type in BALF in control subjects. A significant positive correlation (r = 0.46; P less than 0.01) between vital capacity (VC) and pulmonary diffusing capacity (DLCO) and a negative correlation (r = -0.52; P less than 0.001) between BAL fluid lymphocytes (%) and DLCO (per cent predicted) was found in patients with sarcoidosis. An increase in lymphocytes in BALF is considered to be one of the parameters indicating activity of sarcoidosis. In view of the relationship between this parameter and the reduction in DLCO, the latter may also be an indicator of disease activity.     

Eicosanoids in exhaled breath condensate and BAL fluid of patients with sarcoidosis

BACKGROUND: Measurement of inflammatory mediators in exhaled breath condensate (EBC) is an easy and noninvasive diagnostic method, which has gained popularity in the past few years. However, the source of these mediators is not precisely defined. It has been only presumed that inflammatory cells present in the airway lumen are the main source. Therefore, the aim of this study was to verify the relationship between EBC and BAL fluid (BALF) eicosanoids, and the percentage, number, and activity of cells in BALF. METHODS: In 28 sarcoidosis patients and 17 healthy subjects, 8-isoprostane, cysteinyl leukotrienes (CysLTs), and leukotriene B4 (LTB4) were measured in EBC by enzyme immunoassay. Eicosanoids were also examined in BALF in the study group. Cell count, percentage, and superoxide production by BALF cells were estimated. RESULTS: The mean (+/- SEM) CysLT and 8-isoprostane concentrations were higher in the sarcoidosis group (6.5 +/- 0 vs 27.82 +/- 6.65 pg/mL, respectively; and 2.67 +/- 0.16 vs 13.95 +/- 2.59 pg/mL, respectively). There were positive correlations between EBC and BALF 8-isoprostane concentration (r = 0.68, p < 0.0001) and LTB4 concentration (r = 0.43; p = 0.026). EBC LTB4 levels correlated with the number of lymphocytes per milliliter of BALF. The percentage and number of eosinophils in BALF correlated with EBC 8-isoprostane and BALF CysLT concentrations. No positive correlation was found between concentrations of EBC eicosanoids and percentages BALF lymphocytes, BALF macrophages, or superoxide production. CONCLUSIONS: The levels of 8-isoprostane and CysLT are elevated in EBC in sarcoidosis patients; however, a lack of correlation with BALF lymphocyte percentage does not encourage us to recommend the measurement of eicosanoids as activity markers. The positive correlation of EBC 8-isoprostane and BALF CysLT concentrations with the percentage of eosinophils in BALF, and the higher percentage of eosinophils in BALF from patients with grade 3 sarcoidosis, may suggest the possible prognostic value.     

Bronchoalveolar lavage fluid angiotensin-converting enzyme in interstitial lung diseases

In this study we evaluated the disease specificity of bronchoalveolar lavage fluid angiotensin-converting enzyme (BALF-ACE), its correlation with cellular constituents of bronchoalveolar lavage fluid (BALF), and for sarcoidosis, with other proposed markers of disease activity. Furthermore, the question of the clinical value of BALF-ACE determinations in in interstitial lung diseases or any of its subgroups was addressed. The study population consisted of 222 patients, 69 with biopsy proven sarcoidosis, 3 with hypersensitivity pneumonitis, 4 with acute histoplasmosis, 27 with idiopathic pulmonary fibrosis (IPF), 4 with rheumatoid arthritis-related interstitial fibrosis, 9 with pulmonary drug toxicity, 16 with pulmonary malignancies, 26 with other parenchymal lung disease entities, and 30 in whom the final diagnosis remained indeterminate. Elevated BALF-ACE concentrations were seen in all diagnostic categories. In sarcoidosis BALF-ACE levels correlated well with lavage lymphocyte counts (r = 0.49; p less than 0.0001), in contrast to IPF where they correlated well with lavage neutrophil counts (r = 0.51; p less than 0.007). The correlation of BALF-ACE and serum-ACE was significant. In sarcoidosis the mean BALF-ACE level was lower for patients with Stage-I chest roentgenographic patterns (0.664 U/L), compared to those with Stage II (1.112 U/L) and Stage III (1.083 U/L). It was concluded that elevated BALF-ACE levels are not specific for sarcoidosis. The correlations of BALF-ACE levels with different cellular constituents of BALF suggest a different cellular origin of BALF-ACE. In sarcoidosis BALF-ACE levels correlate well with other proposed markers of disease activity and seem to reflect pulmonary activity better than serum ACE.(ABSTRACT TRUNCATED AT 250 WORDS)     

慢性阻塞性肺疾病患者肺泡巨噬细胞合成肾上腺髓质素的研究

目的探讨肺泡巨噬细胞合成肾上腺髓质素(ADM)在慢性阻塞性肺疾病(COPD)中的作用与机制。方法选择2003年10月至2004年3月,北京大学深圳医院呼吸科15例COPD住院患者(COPD组)和同期14名健康体检者(对照组),收集其肺泡灌洗液,用放免法测定血浆、支气管肺泡灌洗液(BALF)和肺泡巨噬细胞(AM)培养上清液ADM的浓度。结果(1)COPD组BALF的细胞总数、中性粒细胞(PMN)及AM较对照组显著增高(P<0.01)。(2)COPD组血浆、BALF和AM培养上清液ADM浓度均较对照组增高(P<0.01)。(3)COPD组血浆及BALF的ADM浓度分别与BALF中AM数呈正相关(r分别为0.467和0.448,P均<0.05),血浆与BALFADM浓度亦分别与AM培养液中ADM浓度呈正相关(r分别为0.791和0.874,P均<0.01)。结论COPD患者气道内AM增加,合成ADM增多,是BALF中ADM的重要来源,从而在COPD气道炎症、肺通气及肺动脉高压中发挥广泛调节作用。     

The clinical significance of mast cell tryptase in bronchial alveolar lavage fluid in interstitial lung diseases]

Mast cell tryptase plays an important role in fibrosis. Tryptase levels in bronchial alveolar lavage fluid (BALF) from patients with interstitial lung diseases are frequently increased, but little is known of the clinical significance. The study population consisted of 93 patients [38 with sarcoidosis, 23 with collagen vascular disease (CVD), and 32 with idiopathic pulmonary fibrosis (IPF)]. BALF tryptase levels were measured with a newly developed B12 antibody-fluoroimmunocap method (UniCAP method), which can detect an activated form of tryptase. We examined the relationship between BALF tryptase levels and clinical parameters of the diseases. BALF tryptase was detected in 7 (18.4%) patients with sarcoidosis, 7 (30.4%) with CVD, and 14 (45.8%) with IPF. In tryptase-positive group, serum ACE levels and the numbers of BALF-mast cells and lymphocytes were higher than the tryptase-negative group in sarcoidosis, serum LDH levels were higher in CVD, and the number of BALF-lymphocyte and Hugh-Jones grade were higher in IPF. Furthermore, tryptase-positive IPF cases had a poorer outcome than the tryptase-negative group by Kaplan-Meier analysis. Tryptase in BALF detected with the UniCAP method may be associated with disease activity in sarcoidosis and CVD, and with severity and poor prognosis in IPF. BALF tryptase measurement may be useful in the assessment of disease activity and severity in various interstitial lung diseases.     

间质性肺疾病支气管肺泡灌洗液中性粒细胞趋化因子和肿瘤坏 …

OBJECTIVE: To investigate the relationship between the level of the neutrophil chemotactic factor(NCF), tumor necrosis factor-alpha(TNF-alpha) in patients with interstitial lung disease(ILD) and the activity of ILD. METHOD: The NCF activities in the BALF and in the serum from 11 patients with sarcoidosis, 7 with idiopathic pulmonary fibrosis (IPF) and 8 normal subjects were determined using the membrane filter and radio-immunoassay. The level of TNF-alpha was also detected. RESULT: In the 7 IPF patients, the level of NCF and TNF-alpha (203 +/- 44 cells/10 HP, 11.7 +/- 2.9 ng/L) in the BALF was higher than that in 8 control patients (83 +/- 45 cells/10 HP, 6.5 +/- 1.4 ng/L, P < 0.01). The level of NCF and TNF-alpha in the BALF from 11 patients with sarcoidosis (186 +/- 50 cells/10 HP, 12 +/- 3 ng/L) was highet than those in 8 control patients (P < 0.01). The level of NCF and TNF-alpha in the BALF from patients with IPF was positive correlated with the percentage of neutrophil (NCF: r = 0.89, P < 0.01; TNF-alpha: r = 0.86, P < 0.05). The level of NCF and TNF-alpha in the BALF of patients with sarcoidosis was positive correlated with the percentage of lymphocyte (NCF: r = 0.78, P < 0.01; TNF-alpha: r = 0.73, P < 0.01. CONCLUSION: The level of NCF and TNF-alpha in the BALF from patients with IPF and sarcoidosis can act as the marker of the activity of alveolitis of IPF and sarcoidosis.