Khoza Sanele, Ngqaneka Thobile, Magwebu Zandisiwe Emilia, Chauke Chesa Gift
Primate Unit and Delft Animal Centre (PUDAC), South African Medical Research Council, Cape Town, South Africa.
J Med Primatol. 2019 Jun;48(3):161-165. doi: 10.1111/jmp.12400. Epub 2019 Feb 6.
Nonketotic hyperglycinemia (NKH) is a rare metabolic disorder that is characterized by high levels of glycine in plasma and cerebrospinal fluid in humans. In this study, total congenital cataract captive-bred Vervet monkeys (Chlorocebus aethiops) that are hyperglycinemic were screened to identify mutations in Bola type 3 (BOLA3), glutaredoxin 5 (GLRX5), and lipoate synthase (LIAS) genes.
Twenty-four Vervet monkeys (12 hyperglycinemic and 12 healthy controls) were selected for mutation analysis using polymerase chain reaction (PCR), Sanger sequencing, and reverse transcriptase-polymerase chain reaction (RT-PCR).
Novel sequence variants were identified in BOLA3 (R23H and Q38R) and LIAS (R369I and A371A), and gene expression in the control group was significantly lower compared to the hyperglycinemic group (P < 0.05).
The data obtained from this study will contribute to generation of new knowledge regarding the involvement of these genes in NKH development.
非酮症高甘氨酸血症(NKH)是一种罕见的代谢紊乱疾病,其特征是人类血浆和脑脊液中甘氨酸水平升高。在本研究中,对患有高甘氨酸血症的圈养繁殖的先天性白内障绿猴(Chlorocebus aethiops)进行筛查,以鉴定博拉3型(BOLA3)、谷氧还蛋白5(GLRX5)和硫辛酸合成酶(LIAS)基因中的突变。
选择24只绿猴(12只高甘氨酸血症猴和12只健康对照),使用聚合酶链反应(PCR)、桑格测序和逆转录聚合酶链反应(RT-PCR)进行突变分析。
在BOLA3(R23H和Q38R)和LIAS(R369I和A371A)中鉴定出新型序列变异,与高甘氨酸血症组相比,对照组中的基因表达显著降低(P < 0.05)。
本研究获得的数据将有助于产生有关这些基因参与NKH发生发展的新知识。