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Metabolic profiling of serum from dogs with pituitary-dependent hyperadrenocorticism
Research in Veterinary Science ( IF 2.2 ) Pub Date : 2021-06-12 , DOI: 10.1016/j.rvsc.2021.06.011
Alberto Muñoz-Prieto 1 , Ivana Rubić 1 , Anita Horvatic 2 , Renata Baric Rafaj 3 , José Joaquín Cerón 4 , Asta Tvarijonaviciute 4 , Vladimir Mrljak 1
Affiliation  

Hyperadrenocorticism (HAC) is one of the most common endocrine diseases in dogs characterized by excessive cortisol production caused by an adrenocorticotropic hormone (ACTH)-secreting tumor, namely pituitary-dependent HAC (PDH) or cortisol-secreting adrenal tumor. Metabolomics presents the ability to identify small molecule metabolites. Thus, the use of metabolomics techniques in canine PDH can provide information about the pathophysiology and metabolic changes in this disease. This study aimed to identify and compare differences in serum metabolites between dogs with PDH and healthy dogs. The metabolomic profile of 20 dogs diagnosed with PDH was compared with 20 healthy dogs using liquid chromatography/mass spectrometry (LC/MS), and metabolite discrimination was performed using partial least squares-discriminant analysis (PLS-DA), the variable important in projection (VIP) and fold changes (FC) group-wise comparisons. The hypergeometric test identified the significantly altered pathways. A total of 21 metabolites were found to be significantly different between the two groups. The major alterations were found in arachidonic and decanoic acid, and phospholipids related to phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylinositol (PI). These metabolites are related to insulin resistance and other complications (i.e. hypertension). Our results indicate that PDH produces changes in serum metabolites of dogs, and the knowledge of these changes can aid to better understanding of pathophysiological processes involved and contribute to potentially detect new biomarkers for this disease.



中文翻译:

垂体依赖性肾上腺皮质功能亢进犬血清的代谢谱分析

肾上腺皮质功能亢进 (HAC) 是犬最常见的内分泌疾病之一,其特征是由促肾上腺皮质激素 (ACTH) 分泌性肿瘤,即垂体依赖性 HAC (PDH) 或皮质醇分泌性肾上腺肿瘤引起的皮质醇生成过多。代谢组学提供了鉴定小分子代谢物的能力。因此,在犬 PDH 中使用代谢组学技术可以提供有关该疾病的病理生理学和代谢变化的信息。本研究旨在鉴定和比较患有 PDH 的狗和健康狗之间血清代谢物的差异。使用液相色谱/质谱 (LC/MS) 将 20 只诊断为 PDH 的狗的代谢组学特征与 20 只健康狗进行比较,并使用偏最小二乘判别分析 (PLS-DA) 进行代谢物判别,在投影 (VIP) 和折叠变化 (FC) 分组比较中重要的变量。超几何测试确定了显着改变的途径。共发现 21 种代谢物在两组之间存在显着差异。在花生四烯酸和癸酸以及与磷脂酰胆碱 (PC)、磷脂酰乙醇胺 (PE) 和磷脂酰肌醇 (PI) 相关的磷脂中发现了主要变化。这些代谢物与胰岛素抵抗和其他并发症(即高血压)有关。我们的结果表明,PDH 会导致狗的血清代谢物发生变化,了解这些变化有助于更好地了解所涉及的病理生理过程,并有助于潜在地检测该疾病的新生物标志物。超几何测试确定了显着改变的途径。共发现 21 种代谢物在两组之间存在显着差异。在花生四烯酸和癸酸以及与磷脂酰胆碱 (PC)、磷脂酰乙醇胺 (PE) 和磷脂酰肌醇 (PI) 相关的磷脂中发现了主要变化。这些代谢物与胰岛素抵抗和其他并发症(即高血压)有关。我们的结果表明,PDH 会导致狗的血清代谢物发生变化,了解这些变化有助于更好地了解所涉及的病理生理过程,并有助于潜在地检测该疾病的新生物标志物。超几何测试确定了显着改变的途径。共发现 21 种代谢物在两组之间存在显着差异。在花生四烯酸和癸酸以及与磷脂酰胆碱 (PC)、磷脂酰乙醇胺 (PE) 和磷脂酰肌醇 (PI) 相关的磷脂中发现了主要变化。这些代谢物与胰岛素抵抗和其他并发症(即高血压)有关。我们的结果表明,PDH 会导致狗的血清代谢物发生变化,了解这些变化有助于更好地了解所涉及的病理生理过程,并有助于潜在地检测该疾病的新生物标志物。在花生四烯酸和癸酸以及与磷脂酰胆碱 (PC)、磷脂酰乙醇胺 (PE) 和磷脂酰肌醇 (PI) 相关的磷脂中发现了主要变化。这些代谢物与胰岛素抵抗和其他并发症(即高血压)有关。我们的结果表明,PDH 会导致狗的血清代谢物发生变化,了解这些变化有助于更好地了解所涉及的病理生理过程,并有助于潜在地检测该疾病的新生物标志物。在花生四烯酸和癸酸以及与磷脂酰胆碱 (PC)、磷脂酰乙醇胺 (PE) 和磷脂酰肌醇 (PI) 相关的磷脂中发现了主要变化。这些代谢物与胰岛素抵抗和其他并发症(即高血压)有关。我们的结果表明,PDH 会导致狗的血清代谢物发生变化,了解这些变化有助于更好地了解所涉及的病理生理过程,并有助于潜在地检测该疾病的新生物标志物。

更新日期:2021-06-17
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