新诊断Graves病合并肝功能异常的临床研究

目的了解新诊断Graves病合并肝功能异常的发生率、临床特点及相关因素。方法以肝功能是否异常将303例新诊断Graves病患者分为2组，分析其临床表现，并发症，肝功能指标，血清甲状腺激素水平以及甲状腺自身抗体水平。结果新诊断Graves病合并肝功能异常的发生率为58．4％，肝功能损害最常见的异常指标是碱性磷酸酶（ALP）、谷丙转氨酶（ALT）及甲状腺激素水平均显著高于无肝功能异常患者；合并甲亢性心脏病的比例高。TSH、甲状腺微粒体抗体（MCA）、甲状腺球蛋白抗体（TGA）则无明显差异。抗甲状腺药物治疗后，大多数患者肝功能随甲状腺激素水平的回落而恢复正常。结论新诊断Graves病合并肝功能异常较常见，肝功能损害最常见的异常指标是ALP、ALT增高，与甲状腺激素水平、甲亢性心脏病关系密切。     

肝硬化患者血清FT3、FT4浓度变化的临床价值

目的：研究血清游离甲状腺原氨酸（FT3）、游离甲状腺素（FT4）浓度变化与肝硬化的关系。并探讨其临床意义。方法：用放射免疫法检测了69例肝硬化患者血清FT2、FT4水平，并与肝功能分级（Child-Pugh积分法）比较。结果：肝硬化患者血清FT3、FT4较对照组显著降低（P＜0．001）；肝功能A组血清FT3、FT4较对照组显著降低（P＜0．001），B组血清FT3、FT4较A组显著降低（P＜0．001或P＜0．05），C组血清FT3、FT4较B组显著降低（P＜0．05）；肝硬化患者血清FT3、FT4水平与Child-pugh肝功能分级积分呈负相关（γ＝－0．769，－0．725，P＜0．01）。结论：随着肝硬化肝功能损害程度的加重，血清FT3、FT4呈下降趋势，血清FT3、FT4水平与肝功能损害程度密切相关，血清FT3、FT4水平变化对判断肝硬化严重程度，指导临床治疗及判断预后具有一定的临床价值。     

儿童传染性单核细胞增多症并发肝损害相关因素分析

目的：总结儿童传染性单核细胞增多症（ IM）合并肝损害的发生率及临床相关因素,提高对肝损害的认识与防治水平。方法回顾性分析106例IM患儿的临床资料及并发肝损害情况,分析不同性别、年龄、主要临床表现、实验室检查等指标与并发肝损害的关系。结果 IM肝损害发生率为53．8％;不同年龄组的并发肝损害情况有显著差异（χ2＝10．46,P＜0．01）,年龄越大并发肝损害概率越大;IM发热持续时间＞1周、肝脏肿大、脾脏肿大与并发肝损害均相关（χ2值分别为9．40、9．19、4．86,均P＜0．05）;IM外周血小板＜100×109／L或异常淋巴细胞数≥20％与并发肝损害均相关（χ2值分别为5．89、4．85,均P＜0．05）,血小板减少和异常淋巴细胞数增多越明显并发肝损害的概率越高;IM合并肝损害组较无肝损害组CD4＋数明显减少,而CD8＋数明显增多,CD4＋／CD8＋比值明显降低,差异均有统计学意义（t值分别为2．369、2．526、2．968,均P＜0．05）。对相关因素进一步行多因素非条件Logistic回归分析显示：持续发热＞1周、CD8＋高为IM并发肝损害的独立危险因素（ OR值分别为2．67、1．48,均P＜0．05）。结论儿童IM肝功能损害与患儿年龄、发热时间、肝脾肿大及外周血异常淋巴细胞、血小板减少、T淋巴细胞亚群等具有相关性;持续发热＞1周,CD8＋高为IM并发肝损害的独立危险因素。对肝功能损害患儿应加强其早期护肝及免疫调节治疗。     

抗结核组合药化疗对肺结核病人肝功能影响的观察

目的观察抗结核组合药化疗对肺结核病人肝功能的影响。方法比较乙型肝炎病毒标志物（HBVM）阳性组和阴性组肺结核病人组合药化疗前后肝功能损害程度，受损时间和恢复时间。结果960例病人中肝损率为18．95％，HBVM阳性组肝损率为35．77％，HBVM阴性组肝损率为12．24％，HBVM阳性组肝损率比HBVM阴性组明显高（P〈0．01）。其中HBsAg（＋）、HBeAg（＋）、HBcAb（＋）组比单纯HBsAg（＋）组病人肝损率明显增高（P〈0．05）。结论组合药化疗有明显肝功能损害，HBVM阳性病人比阴性病人多见，损害出现时间早而恢复时间相对延长。应用组合药化疗时应密切观察肝功能变化并积极采取综合防治措施。     

甲状腺动脉栓塞治疗Graves病的临床研究

目的评价甲状腺动脉栓塞治疗Graves病的临床价值。方法应用时间分辨荧光免疫法测定63例Graves病患者动脉栓塞治疗前、治疗后3d、2周、4周及40例正常人游离三碘甲状腺原氨酸（FT3）、游离甲状腺素（FT4）、超灵敏促甲状腺激素（sTSH）含量。结果63例Graves病患者行甲状腺动脉栓塞术治疗前血清FT3、FT4均显著高于正常对照组（t=10.43；23.81；P〈0．01），sTSH显著低于正常对照组（t=15．36，P〈0.01）；栓塞治疗3d后FT3明显下降（t=9．782，P〈0．01），2周达正常水平（P〉0.05）；栓塞治疗2周后n明显下降，sTSH明显升高（t=22．12；18.43；P〈0．01），4周后均达正常水平（P〉0.05）。结论甲状腺动脉栓塞是治疗Graves病行之有效的方法，动态监测血清FT3、FT4、sTSH水平变化可作为其临床疗效观察及预后判断的指标。     

对肺癌乳腺癌和前列腺癌早期骨转移的诊断研究

目的 探讨早期明确恶性肿瘤骨转移的最佳组合。方法 选择35倒骨良性病变患者作为对照组，102例原发性肺癌、乳腺癌和前列腺癌患者作为实验组。用酶法检测血清碱性磷酸酶（ALP）；用麦胚凝集素法检测血清骨性磷酸酶（B—ALP）；用单光子计算机断层扫描仪（SPECT）进行全身核素骨显像的同时，测定血清ALP、B-ALP结果102例恶性肿瘤骨转移率62．8％，其中单发灶21．8％，多发灶78．2％：实验组和对照组ALP比较，差异有显著意义（P〈0．05），B-ALP比较，差异有极显著意义（P〈0．01）；多发灶骨转移患者ALP、B-ALP浓度明显高于单发灶患者（P〈0．01）；B-ALP〉20U／L时，对恶性肿瘤骨转移有一定的诊断价值。结论 同时测定血清B-ALP有助于明确恶性肿瘤患者核素骨显像异常表现的病变性质，可提高早期骨转移的诊断率和诊断符合率。     

Graves病导致肝损害的相关危险因素

目的探讨Graves病造成的肝损害有关危险因素。方法收集武汉大学人民医院于2013年1月—2016年12月收治并诊断为Graves病的患者183例。其中,肝功能受损组93例,肝功能正常组90例,检测分析两组游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)、甲状腺过氧化物酶抗体(TPOAb)、促甲状腺素受体抗体(TRAb)和甲状腺球蛋白抗体(TGAb)。结果肝功能受损为1级、2级和3级的患者人数分别为70人(75%)、22人(24%)和1人(1%)。患有Graves病并发肝功能受损的最常见肝功能异常指标依次为碱性磷酸酶(ALP,73.33%)、丙氨酸转氨酶(ALT,47.31%)、天冬氨酸转氨酶(AST,43.01%),γ-谷氨酰转移酶(GGT,30.34%),总胆红素(TBIL,19.75%)。肝功能受损组FT3、FT4和TRAb3项指标高于肝功能正常组,且差异有统计学意义。结论 Graves病导致肝损害的相关危险因素为FT3、FT4和TRAb。     

甲状腺功能亢进症患者肝功能变化的相关因素分析

目的对甲状腺功能亢进症(甲亢)患者出现肝功能变化时的一些相关因素进行临床分析。方法比较分析甲亢性肝功能损害和甲亢无肝功能损害两组之间的总三碘甲状腺原氨酸(TT3)、总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺素(TSH)水平及两组合并其他甲亢并发症的情况。对甲状腺激素水平与肝功能之间的关系进行相关性研究,并分析甲亢患者肝功能变化的情况。结果甲亢性肝功能损害患者的FT3、FT4明显高于甲亢无肝功能损害患者(P<0.01);甲亢性肝功能损害患者其他甲亢合并症发生率明显高于无肝功能损害患者(P<0.05);甲亢性肝功能损害时主要以碱性磷酸酶(ALP)、丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)的异常增高为主;并且FT3、FT4分别与ALT、AST存在相关关系,P<0.05。结论甲亢性肝功能损害与甲状腺激素水平及甲亢并发症有密切关系。     

血清前白蛋白预测原发性肝癌患者肝储备功能的价值

目的探讨血清前白蛋白（Prealbumin,PA）在原发性肝癌（Primary Liver Carcinoma,PLC）患者围手术期肝储备功能预测中的临床价值。方法回顾性分析128例在我院接受肝癌切除术的PLC患者围手术期血清PA水平与肝功能Child—pugh分级及术后肝功能衰竭的关系。结果术前Child—pugh分级A级患者的血清PA水平[（182．6±45．1）mg／L]明显高于B级患者[（137．1±35．5）mg／L],差异具有统计学意义（P〈0．01）。术后第1天血清PA水平开始下降,第5天降至最低谷,以后逐渐回升,到术后2w时基本恢复到术前水平;术后第1、3、5、7天时血清PA、TBili、ALT、AST的异常率均明显高于血清Alb的异常率（P〈0．05）。术后发生肝功能衰竭的患者术后第1、3、5、7天的血清PA水平均低于未发生肝功能衰竭的患者,尤以术后第5、7天更为明显（P〈0．01）。结论血清PA可以敏感地反映PLC患者的肝功能损害程度和肝储备能力,术后动态观察血清PA水平的变化可及时发现肝功能衰竭,并可作为患者预后判断的参考依据。     

二甲基甲酰胺对作业工人肝肾损害和脂代谢的影响

目的探讨聚氨酯合成革业二甲基甲酰胺（DMF）对作业工人肝肾损害与脂代谢的影响。方法选择某聚氨酯合成革厂作业工人260名为对象，根据各岗位连续3d空气DMF浓度监测结果，计算时间加权平均（TWA）浓度，分为高浓度接触组（TWA〉55mg／m^3）、中浓度接触组（TWA15-45mg／m^3）、低浓度接触组（TWA2-10mg／m^3）和对照组。测定血清中丙氨酸转氨酶（ALT）、天冬氨酸转氨酶（AST）、γ-谷氨酰转肽酶（γ-GT）、碱性磷酸酶（ALP）、血清总胆红素（STB）、总胆固醇（CHO）、三酰甘油（TG）、高密度脂蛋白（HDL）、低密度脂蛋白（LDL）和尿β2-微球蛋白（β2-MG）。结果接触组工人自述恶心19．31％、腹痛15．45％、腹胀13．73％、食欲减退9．01％；接触组肝功能ALT、AST、γ-GT异常检出率分别为34．33％、37．33％和38．20％；肝功能指标ALT、AST、γ-GT在高、中、低各组间比较，差异有统计学意义（P〈0．05）；高浓度接触组尿β2-MG和血清HDL检出值高于其他组别，差异有统计学意义（P〈0．05）。结论DMF主要靶器官为肝脏，对肝功能的损害存在明显的剂量-反应关系；高浓度接触可对肾功能产生损害，对脂代谢可能产生一定的影响。     

丙硫氧嘧啶联合甲巯咪唑治疗对甲亢患者甲状腺功能及肝功能的影响

目的 探讨丙硫氧嘧啶联合甲巯咪唑治疗对甲亢患者甲状腺功能及肝功能的影响.方法 选取甲亢患者100例,随机分为两组各51例.对照组给予丙硫氧嘧啶治疗,观察组给予丙硫氧嘧啶联合甲巯咪唑治疗.比较两组的甲状腺功能及肝功能.结果 治疗3个月后,观察组的TSH水平显著高于对照组,TT3、FT3、FT4水平均显著低于对照组(P<0...     

2型糖尿病患者甲状腺激素与各项肝酶相关性分析

目的:探讨2型糖尿病患者甲状腺激素与肝酶的相关性。方法:选取522例2型糖尿病患者,测定血清三碘甲状腺原氨酸(TT3)、甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺素(TSH)、丙氨酸氨基转移酶(ALT)、门冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)和γ-谷氨酰转肽酶(GGT)水平。按FT3、FT4、TSH水平进行分组,评价甲状腺激素与肝酶的关系。结果:1组和5组中ALT、ALP和GGT;以及2组中ALP均高于正常对照组(P<0.05)。在控制血糖因素后,相关分析显示TT3与ALT和GGT、TT4与ALT、FT3与ALT和GGT相关(P<0.01);FT4和TSH与四项指标均不相关。结论:2型糖尿病患者甲状腺激素与各项肝酶显著相关,甲状腺激素可能是糖尿病肝损害的保护性因素。     

妊高征患者生化指标的变化

目的:通过对妊娠高血压综合征(妊高征)患者及正常妊娠、非妊娠妇女血钙、BUN、Cr、UA、ALB、GLB、ALT、AST、ALP等生化指标的比较,探讨他们之间的相关性。方法:采用生化分析方法检测162例妊高征患者及60例正常妊娠妇女.80例非妊娠妇女的各项生化指标,并进行对照。结果:妊高征患者血钙水平明显下降,与正常妊娠、非妊娠组比较,差异显著(P<0.01),且下降的程度反映病情严重程度,均有显著性差异(P<0.01);肝功能方面妊高征组ALT、AST、ALP均高于正常妊娠组,ALB则降低,两者比较有显著性差异(P<0.01);肾功能方面BUN、Cr、UA妊高征组明显增高,有显著性差异(P<0.01),且其升高程度反映妊高征病情的严重程度(P<0.01)。结论:低血钙是妊高征的相关因素之一。妊高征患者肝肾功能皆有一定的损害,肾功能各项生化指标的变化要比肝功能敏感,且有明显相关性,其变化程度反映妊高征患者肝肾功能损害程度。     

月经失调与甲状腺功能的联系——对1495例临庆系列病例的分析

目的探究月经失调形式和甲状腺功能（甲功）之间的联系。方法系列分析2006年1月4日至2011年3月2日妇科内分泌中心就诊的1495例患者的临床资料,均填写详细病史表格及检测促甲状腺激素、游离三碘甲状腺氨酸与游离甲状腺素水平。结果①临床月经失调和不育患者在系列病例中甲功异常发生率为13．4％;②甲功正常与甲功异常的月经分布情况无统计学差异（P=0．107）。但甲功异常者发生月经失调率是甲功正常者的1．49倍;③不同甲状腺功能状态下的月经分布情况均无统计学差异（P〉0．05）。但甲亢者发生月经失调率是甲功正常者的2．31倍。亚甲亢者是甲功正常的1．40倍。亚甲减者是甲功正常的1．27倍。甲减者发生月经失调率最高,是甲功正常的3．31倍;④甲亢与甲功正常者相比,月经过少发生率有统计学差异（P=0．025）。亚甲减者发生子宫异常出血率和月经稀发率分别是甲功正常者的1．36倍和1．34倍;甲减者发生闭经率最高,是甲功正常者的5．96倍;亚甲亢和甲亢发生月经过少率均最高,分别是甲功正常者的3．42倍和10．3倍;⑤各类与甲功异常类型联系最密切的月经失调患者的促甲状腺激素、游离三碘甲状腺氨酸与游离甲状腺素水平均有统计学差异（P〈0．001）。结论甲状腺功能低落或亢进均有可能发生月经失调。甲减合并的月经失调类型总体偏于月经稀发和闭经。亚甲减与合并子宫异常出血和月经稀发的发生都较密切。甲亢和亚甲亢的月经失调类型均以月经过少为主。     

不同剂量丙基硫氧嘧啶治疗妊娠合并甲亢及对妊娠结局和凝血功能影响

目的:探索不同剂量丙基硫氧嘧啶治疗妊娠合并甲亢患者妊娠结局及对凝血功能影响。方法:选取2015年1月—2017年12月本院收治的150例妊娠合并甲亢患者,随机分为低剂量组75例(每天给予150mg丙基硫氧嘧啶)和高剂量组75例(每天给予300mg丙基硫氧嘧啶),比较两组妊娠结局、肝功能、甲状腺功能、凝血功能和甲亢治疗效果。结果:治疗后,与低剂量组比较,高剂量组ALP、GGT、TBIL、ALT和AST水平增高,TSH、FT4、FT3、TT4、PT、TT、FIB和DD水平降低,治疗总有效率(92.0%)高于低剂量组(77.3%),剖宫产、早产、妊娠期高血压、心力衰竭、重度子痫及胎儿窘迫、新生儿甲亢、低体重儿等发生率均低于低剂量组(均P<0.05)。结论:高剂量丙基硫氧密啶治疗妊娠合并甲亢,不仅可有效控制甲亢,减轻高凝状态,而且可以改善产妇及新生儿妊娠结局,但药物对患者的肝功能存在一定影响,需密切关注肝功能指标。     

Biochemical changes of liver damage factors in the course of mononucleosis like syndrome caused by cytomegalovirus

In 30 patients with mononucleosis-like syndrome (MLS) caused by cytomegalovirus (CMV), diagnosed on the basis of clinical symptoms, haematological & serological changes (after excluding Epstein-Barr virus, HAV, HBV and HCV infections), the following measurements were done weekly during consecutive two months': bilirubin concentration, aspartate & alanine aminotransferases (AST & ALT), alkaline phosphatase (ALP), beta-glucuronidase (B-GR), and gamma-glutamyltranspeptidase (GGTP) activity. Increase in bilirubin concentration was found in 6% of patients, increase of AST and ALT activity--in 70%, GGTP--in 50%, ALP--in 25%, and of B-GR--in 16% of the subjects. The highest bilirubin concentration, and high levels of AST, ALT, and B-GR were noted in the 2nd week of infection, whereas the peak activity of ALP and GGTP was found in the 3rd week of the disease. In all patients normalization of bilirubin concentration was earliest (5th week of infection); followed by decrease of AST, ALT, B-GR, and ALP activity (7th week), and subsequently--that of GGTP (8th week of the disease). The results of the investigations have shown that in the course of MLS the changes of hepatic activity are limited and transient; they return to normal synchronously with the withdrawal of clinical symptoms (4th-6th week of the disease), without permanent measurable consequences. In patients with MLS and increase AST & ALT activity (400-600 iu) as well as slight increased of bilirubin concentrations hepatitis C,A and B should be excluded. In has not been established so far whether the changes of hepatic function during MLS are the consequence of direct infection by CMV, reactivation of the primary occult infection (asymptomatic), or re-infection by a different serotype.     

A cross-sectional investigation of chronic exposure to microcystin in relationship to childhood liver damage in the Three Gorges Reservoir Region, China

Background: Microcystin-producing Microcystis bloom is a severe water problem in the world. Some reports indicate that chronic exposure to microcystin may result in liver damage in adults, but information on effects in children is limited.Objective: We investigated the relationship between microcystin exposure and liver damage in children.Methods: We measured microcystin concentrations in drinking water and aquatic food (carp and duck) from two lakes and four wells. Participants were 1,322 children 7–15 years of age who obtained drinking water from one of the tested sources, completed questionnaires, and provided blood samples for serum liver enzymes [alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and γ-glutamyltransferase (GGT)] and serum microcystin analysis. Multivariable logistic regression was used to identify risk factors associated with liver damage (two or more abnormal serum enzyme levels in ALT, AST, ALP, or GGT).Results: Microcystin was detected in most samples of water and aquatic food from two lakes. Children who drank water from the lake with the highest microcystin concentrations had a total estimated daily microcystin intake of 2.03 μg, a value much higher than the tolerable daily intake (0.40 μg) proposed by the World Health Organization for children. Hepatitis B virus (HBV) infection, use of hepatotoxic medicines, and microcystin exposure were associated with liver damage. AST and ALP levels were significantly higher in high-microcystin-exposed children than in low-exposed children and unexposed children when participants who were HBV-positive or hepatotoxic medicine users were excluded from the analysis.Conclusion: These results suggest that chronic exposure to microcystin may be associated with liver damage in children in the Three Gorges Reservoir Region.     

108例小儿轮状病毒肠炎合并肝脏损害临床分析

目的:探讨轮状病毒肠炎合并肝脏损害的临床特征。方法:对485例轮状病毒肠炎患儿作肝功能及肝脏B超检查,并对其中108例合并肝脏损害者的临床特征进行分析。结果:(1)108例患儿中,单纯丙氨酸转移酶(ALT)升高者30例,占27.8%;单纯天冬氨酸转移酶(AST)升高者18例,占16.7%;单纯Υ-谷氨酰转肽酶(Υ-G T)升高者10例,占9.3%;ALT和AST同时升高者24例,占22.3%;ALT、AST和Υ-G T同时升高者12例,占11.1%;转氨酶升高伴胆红素(TB IL或DB IL)升高者3例,占2.7%;转氨酶升高伴白蛋白(ALB)降低者3例,占2.7%;肝功能异常伴肝脏肿大者8例,占7.4%。ALT升高总例数为66例,占61.1%;AST升高总例数为54例,占50%;Υ-G T升高总例数为22例,占20.4%。(2)经病毒唑及能量合剂等治疗后,2周内ALT恢复正常者60例,占全部AST升高病例的90.9%;AST恢复正常者51例,占全部AST升高病例的94.4%;Υ-G T恢复正常者21例,占全部Υ-G T升高病例的95.5%;合并TB IL或DB IL升高及ALB降低、肝脏肿大者,全部于2周内恢复正常。结论:轮状病毒肠炎可同时合并肝脏损害,其中以ALT及AST升高者最多见,经一般抗病毒及护肝等治疗后预后良好,绝大多数患儿在2周内肝功能及肝脏大小可恢复正常。     

Serum enzyme tests in hepatosplenic schistosomiasis

The serum activities of monoamine oxidase (MAO), gamma-glutamyl transferase (GGT) and glutamic dehydrogenase (GDH) enzymes were measured in 25 patients with Schistosoma mansoni infection (Group I), 26 patients with schistosomal hepatosplenomegaly and ascites (Group II) and 21 normal controls. The activities of these enzymes were compared with those of serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP). The mean levels of MAO, GGT and GDH of Group I were not significantly different from controls. The mean levels of MAO and GGT in Group II, however, were significantly different from corresponding mean levels of Group I and the controls at P less than .001. Changes in the mean level of GDH and ALT were not significant. By contrast, the levels of AST and ALP in both groups showed significant elevation over control levels at P less than .001. These results indicate that estimation of the two enzymes MAO and GGT may aid in the biochemical differentiation of the stages of schistosomiasis and their associated hepatic complications.     

Modulating influence of cytochrome P-450 MspI polymorphism on serum liver function profiles in coke oven workers

OBJECTIVES: It was reported previously that topside oven workers with heavy exposure to coke oven emissions had increased serum activities of hepatic aminotransferase in one coke oven plant. This study was conducted to investigate the modifying effect of CYP1A1 MspI polymorphism on liver function profiles in coke oven workers. METHODS: 88 coke oven workers from a large steel company in Taiwan were studied in 1995-6. Exposure was categorised by work area: topside oven workers and sideoven workers. Liver function profiles including serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), r-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP), and total bilirubin (BIL) were examined in the morning after personal exposure measurements. The MspI polymorphism was determined by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). RESULTS: Five of 23 (22%) topside oven workers and seven of 65 (11%) sideoven workers had the CYP1A1 MspI homozygous variant genotype. With sideoven workers with the combined wild type and heterozygous variant as the reference group in multiple regression models, it was found that topside oven workers with the combined traits had mean AST and ALT activities that were 21% and 46% higher (95% confidence interval (95% CI) 4% to 42% and 12% to 91%, respectively) than the reference group after adjusting for appropriate confounders. Also, topside oven workers with the homozygous variant trait had mean AST, ALT, and GGT activities that were 59%, 68%, and 157% higher (95% CI 21% to 109%, 6% to 168%, and 39% to 374%, respectively) than the reference group. The prevalence of an abnormal hepatocellular pattern (AST > 37 IU/l or ALT > 39 IU/l) was more common in the topside oven workers with the homozygous variant than in the sideoven workers with the other combined genotypes (adjusted odds ratio 9.9, 95% CI 1.2 to 82.3) after adjusting for appropriate confounders. CONCLUSIONS: The CYP1A1 MspI polymorphism may modify the biotransformation of coke oven emissions, which results in hepatocellular damage in coke oven workers.