在患有的荷尔斯坦牛中发现DYRK1B的哈普洛缺陷
Joana G P Jacinto1,2, Marilena Bolcato1, Irene M Häfliger2
1Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy.
Animal genetics
|August 15, 2023
概括
一只荷尔斯坦小牛患有,焦点发作进展为普遍性发作. 基因分析揭示了DYRK1B基因变异,确定了一种新的牛病因,并将DYRK1B添加到候选基因中.
科学领域:
- 兽医神经学 兽医神经学
- 遗传学 是一个遗传学.
- 动物疾病研究 动物疾病研究
背景情况:
- 牛可以表现为各种类型的发作.
- 识别牲畜中神经系统疾病的遗传基础对于群体健康至关重要.
- 人们越来越认识到DYRK1B基因在神经功能中的作用.
研究的目的:
- 为了诊断和描述一个年轻的霍尔斯坦小母的.
- 为了调查观察到的的遗传基础.
- 确定与牛相关的新型候选基因.
主要方法:
- 发作阶段的临床观察和特征 (发作前,发作后,发作后,发作间).
- 对大脑组织进行神经病理学检查.
- 全基因组测序以确定遗传变异.
主要成果:
- 雌牛呈现的焦点发作演变为普遍性发作,包括抑郁,发声,眼,唾液和意识丧失.
- 神经病理学显示,大脑干中的轴突退化和星细胞质症.
- 在DYRK1B基因中发现了一种异合体拼接位变异 (c.-101-1G>A),可能导致单 haplo不充足.
结论:
- 这项研究报告了牛中第一个DYRK1B相关病例.
- 鉴定到的DYRK1B变体是这种母牛中的可能原因.
- 建议DYRK1B作为牛的候选基因,扩大对牛神经疾病的知识.
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