摘要目的:利用代谢组学技术对比不同证型糖尿病高危足受试者的血清代谢谱，并探讨其代谢规律。方法:将符合入选标准的2018年4-12月上海中医药大学附属医院上海市中西医结合医院糖尿病高危足131例受试者经辨证分为寒凝瘀阻证(44例)、热毒伤阴证(54例)、气血两虚证(33例)，另选取体检中心32位健康人血样作为健康对照组，采用气相色谱-质谱(gas chromatography-mass spectrometry, GC-MS)检测血清尿素、L-亮氨酸、天冬氨酸、 9H-嘌呤、D-葡萄糖、D-吡喃葡萄糖、β-1-半乳糖吡喃糖苷、血清丁酸、苯、咪唑并[1,2-a]吡啶、β-D-葡萄糖醛糖含量，采用多维数据处理方法对血清代谢物轮廓进行比较。 结果:与健康对照组比较，糖尿病高危足组血清尿素[(2.41±1.57)×10 5比(3.32±2.10)×10 5]、L-亮氨酸[(4.94±3.15)×10 5比(6.39±3.57)×10 5]、天冬氨酸[(3.94±4.48)×10 5比(9.62±6.93)×10 5]、 9H-嘌呤[(1.74±1.95)×10 5比(3.34±2.23)×10 5]含量降低( P<0.05或 P<0.01)，D-葡萄糖[(3.72±1.71)×10 5比(2.21±1.32)×10 5]、D-吡喃葡萄糖[(3.32±2.10)×10 5比(1.35±1.43)×10 5]含量升高( P<0.01)，涉及能量代谢、氨基酸代谢和糖代谢。糖尿病高危足寒凝瘀阻证受试者L-络氨酸含量高于健康对照组，热毒伤阴证受试者尿素、嘌呤、亮氨酸、天冬氨酸含量低于健康对照组，气血两虚证受试者嘌呤含量低于健康对照组( P<0.01)。寒凝瘀阻证受试者血清丁酸、β-1-半乳糖吡喃糖苷水平高于热毒伤阴证，热毒伤阴证受试者血清尿素水平高于寒凝瘀阻证、气血两虚证( P<0.01)。 结论:糖尿病高危足不同证型受试者的血清代谢物存在一定差异，可从体内代谢物角度反映不同证型糖尿病高危足的代谢规律。

abstractsObjective:To explore the metabolic regulations of different Traditional Chinese Medicine (TCM) syndromes in the diabetic patients with high risk for foot ulceration.Methods:Based on gas chromatography-mass spectrometer and multi-dimensional data processing methods, the metabolomics analysis was used to compare the serum metabolites profile of healthy people (32 cases) and the high-risk foot patients in Cold and Blood Stagnation syndrome (44 cases), Heat-toxin hurting Yin syndrome (54 cases), and Qi-Blood deficiency syndrome (33 cases), who were hospitalized at Shanghai TCM-Integrated Hospital from Apirl to December, 2018.Results:This study suggested that compared with healthy people, the diabetic patients with high risk for foot ulceration showed significantly lower serum level of urea [(2.41 ± 1.57)×10 5vs. (3.32 ± 2.10)×10 5], L-leucine [(4.94 ± 3.15)×10 5vs. (6.39 ± 3.57)×10 5], aspartic acid [(3.94 ± 4.48)×10 5vs. (9.62 ± 6.93)×10 5], 9H-purine [(1.74 ± 1.95)×10 5vs. (3.34 ± 2.23)×10 5] ( P<0.05 or P<0.01), while higher level of d-Glucose [(3.72 ± 1.71)×10 5vs. (2.21 ± 1.32)×10 5] and d-glucopyranose [(3.32 ± 2.10)×10 5vs. (1.35 ± 1.43)×10 5] ( P<0.01). Energy metabolism, amino acid metabolism and sugar metabolism were mainly involved. the content of L-tyrosine in the group of patients with Cold and Blood Stagnation syndromewas significantly higher than that in healthy people. The urea, purine, leucine, aspartic acidcontent in patients of Heat-toxin hurting Yin syndrome were significantly lower than that in healthy people. The purine content in patients of Qi and Blood Deficiency Syndrome was significantly lower than that in healthy people. Compared with the syndrome of Heat-toxin hurting Yin syndrome, patients in Cold and Blood Stagnation syndrome showed a significantly higher content of beta-1-galactopyranoside and butanoic acid. Compared to the Qi-Blood deficiency syndrome, serum urea level in patients of Heat-toxin hurting Yin syndrome was significantly higher than those in the patients of other two TCM syndromes. Conclusions:The serum metabolomics profiling differentiate three TCM-syndrome in high-risk DF patients, which can provide objective basis for clinical TCM syndrome differentiation and treatment of high-risk diabetic foot patients.