目的观察多发性硬化(multiple sclerosis,MS)患者下丘脑-垂体-肾上腺轴(hypothalamo-pituitaryadrenal axis,HPAA)的功能改变情况。方法选择作者医院60例非急性发作期MS患者(MS组),以同期作者医院门诊健康体检者30名为健康对照(对照组),采用酶联免疫吸附法(enzyme linked immunoassay,ELISA)检测早晨8点空腹血皮质醇(cortisol,CORT)、促肾上腺皮质醇激素(adrenocorticotropin,ACTH)、促肾上腺皮质醇激素释放激素(corticotropin releasing hormone,CRH)水平。MS组患者根据EDSS评分的不同,分为EDSS〉4.5组(10例)和EDSS≤4.5组(50例)两组;根据MS分型,分为复发缓解型MS(relapsing-remitting multiple sclerosis,RRMS)组(48例)和非复发缓解型MS(非RRMS)组(12例)两组。结果与对照组〔(55.67±32.48)ng/mL〕比较,MS组CORT〔(121.09±89.46)ng/mL〕表达升高(P=0.000),与对照组〔(252.91±129.76)pg/mL〕比较,MS组ACTH〔(158.66±92.94)pg/mL〕表达下降(P=0.024)。不同性别之间上述指标比较差异无统计学意义(均P〉0.05)。EDSS评分〉4.5组〔(75.74±36.69)pg/mL,(159.37±27.99)pg/mL〕较EDSS≤4.5组〔(175.07±92.97)pg/mL,(217.11±65.34)pg/mL〕患者血清ACTH、CRH水平显著降低(P=0.001,P=0.032)。非RRMS组患者血清ACTH、CRH水平〔(101.62±57.02)pg/mL,(174.89±52.48)pg/mL〕与RRMS组〔(172.68±96.11)pg/mL,(215.61±64.89)pg/mL〕比较均显著下降(P=0.008,P=0.032)。结论 MS患者存在HPAA的功能紊乱。
Objective To observe changes of the function of hypothalamo-pituitary-adrenal axis(HPAA)of patients suffering from multiple sclerosis(MS),and the differences of HPAA function among different genders,MS types.Methods Sixty MS patients during remission(the MS group)were included.Adrenocorticotropin(ACTH),corticotropin releasing hormone(CRH),total cortisol(CORT)in serum at8∶00am were measured by enzyme-linked immunosorbent assay(ELISA).The control group consisted of 30 healthy volunteers.According to different EDSS scores,MS patients were divided into EDSS〉4.5group(10cases)and EDSS ≤4.5group(50cases).According to MS type,they were divided into relapsing-remitting MS(RRMS)group(48cases)and non-relapsing-remitting MS(non-RRMS)group(12cases).Results Serum level of CORT [(121.09±89.46)ng/mL,P=0.000]was significantly higher and ACTH [(158.66±92.94)pg/mL,P=0.024]was lower comparing with those of the control group [(55.67±32.48)ng/mL,(252.91±129.76)pg/mL,respectively].Differences were not found between those of different genders in MS patients.Serum levels of ACTH and CRH in the EDSS high group(EDSS〉4.5)[(75.74±36.69)pg/mL,(159.37±27.99)pg/mL]were significantly lower than those in the EDSS low group(EDSS≤4.5)[(175.07±92.97)pg/mL,(217.11±65.34)pg/mL](P=0.001,P=0.032).Meanwhile,RRMS patients[(172.68±96.11)pg/mL,(215.61±64.89)pg/mL]presented significantly higher levels of ACTH and CRH in the serum comparing with the non-RRMS patients[(101.62±57.02)pg/mL,(174.89±52.48)pg/mL](P=0.008,P=0.032).Conclusions The HPAA functions were abnormal in MS patients,which played an important role in MS pathology.ACTH and CRH presented significantly lower levels in severer(EDSS〉4.5)and non-RRMS patients.