在患有高血症的狗中,感受受体基因的新奇错误变异
Dennis J Woerde1,2, Carrie A Palm1, Emma C Cosaro3
1Department of Veterinary Medicine and Epidemiology, University of California, Davis, CA 95616, United States.
Journal of veterinary internal medicine
|February 26, 2026
概括
感受受体基因 (CASR) 的遗传变异导致边境犬的持续高血症. 这一发现有助于诊断出类似的家族性低性高血症病例.
科学领域:
- 兽医遗传学 兽医遗传学
- 狗内分泌学 狗内分泌学
- 分子诊断学 分子诊断
背景情况:
- 狗的持续性高血症可能很难诊断.
- 人类的家族性低性高血症 (FHH) 与感受受体基因 (CASR) 突变有关.
- 狗的异常性高血症往往缺乏明确的潜在原因.
研究的目的:
- 为了确定边境犬持续高血症的遗传原因.
- 研究感受受体基因 (CASR) 在犬类高血症中的作用.
- 在犬病患者中描述一种新的CASR变异.
主要方法:
- 临床评估和生化分析的高血边境科利.
- 诊断成像,以排除副甲状腺异常.
- 狗CASR基因的外基因测序和全基因组测序分析.
主要成果:
- 这只狗出现了持续的高血症,副甲状腺激素 (PTH) 升高,尿液中分泌量不适当地低.
- 通过成像,没有通过成像确定甲状腺侧状腺异常.
- 在受影响的狗中发现了一种具有预测致病性的同卵性误解CASR变体 (Glu649Lys).
- 这种CASR变异在2,782只狗的队列中不存在.
结论:
- 一种新的CASR变异被确定为本种边境犬家族性低性高血症的可能原因.
- 在患有持续高血症和正常血症的年轻狗中,应考虑CASR基因测序.
- 这一发现扩大了对兽医中CASR相关疾病的理解.
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