Deletion of the lmna gene induces growth delay and serum biochemical changes in C57BL/6 mice.

Deletion of the lmna gene induces growth delay and serum biochemical changes in C57BL/6 mice.
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Lmna 基因缺失导致 C57BL/6 小鼠生长延迟和血清生化变化

DOI:
10.5713/ajas.2013.13246
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发表时间:
2014-01
期刊:
Asian-Australasian journal of animal sciences
影响因子:
--
通讯作者:
Weng YG
Weng YG
中科院分区:
其他
文献类型:
--
作者:
Ruan J;Liu XG;Zheng HL;Li JB;Xiong XD;Zhang CL;Luo CY;Zhou ZJ;Shi Q;Weng YG

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A型核纤层蛋白缺陷小鼠系(Lmna−/−)已成为最常用的模型之一,用于深入了解A型核纤层蛋白功能的许多不同方面。为了阐明Lmna在小鼠生长和代谢中的功能,在Lmna缺陷小鼠、与C57 BL/6背景回交的杂合(Lmna+/−)和野生型(Lmna+/+)小鼠中监测组织生长和血液生化。在出生后4周,测量Lmna-/-、Lmna+/-和Lmna+/+小鼠的各种器官的重量。一组生化分析,包括15个血清学试验进行了检查。结果表明,Lmna基因缺陷小鼠体重显著下降,大部分组织器官的器官/体重比显著增加。与Lmna+/+和Lmna+/−小鼠相比,Lmna−/−小鼠的ALP(碱性磷酸酶)、Chol(胆固醇)、CR(肌酐)、GLU(葡萄糖)、HDL(高密度脂蛋白胆固醇)水平较低,ALT(丙氨酸氨基转移酶)水平较高(p<0.05)。与Lmna+/+小鼠相比,Lmna−/−小鼠显示出更高的AST(天冬氨酸转氨酶)值和更低的LDL(低密度脂蛋白胆固醇)、CK-MB(肌酸激酶-MB)水平(p<0.05)。三组小鼠的血尿素氮(BUN)、肌酸激酶(CK)、胱抑素C(Cyc C)、总蛋白(TP)、甘油三酯(TG)和尿酸(UA)水平无显著性差异(p>0.05)。这些血清学指标的变化为阐明Lmna基因的功能提供了实验依据。
The A-type lamin deficient mouse line (Lmna−/−) has become one of the most frequently used models for providing insights into many different aspects of A-type lamin function. To elucidate the function of Lmna in the growth and metabolism of mice, tissue growth and blood biochemistry were monitored in Lmna-deficient mice, heterozygous (Lmna+/−) and wide-type (Lmna+/+) backcrossed to C57BL/6 background. At 4 weeks after birth, the weight of various organs of the Lmna−/−, Lmna+/− and Lmna+/+ mice was measured. A panel of biochemical analyses consisting of 15 serological tests was examined. The results showed that Lmna deficient mice had significantly decreased body weight and increased the ratio of organ to body weight in most of tissues. Compared with Lmna+/+ and Lmna+/− mice, Lmna−/− mice exhibited lower levels of ALP (alkaline phosphatase), Chol (cholesterol), CR (creatinine), GLU (glucose), HDL (high-density lipoprotein cholesterol) and higher levels of ALT (alanine aminotransferase) (p<0.05). Lmna−/− mice displayed higher AST (aspartate aminotransferase) values and lower LDL (lowdensity lipoprotein cholesterol), CK-MB (creatine kinase-MB) levels than Lmna+/+ mice (p<0.05). There were no significant differences among the three groups of mice with respect to BUN (blood urea nitrogen), CK (creatine kinase), Cyc C (cystatin C), TP (total protein), TG (triacylglycerols) and UA (uric acid) levels (p>0.05). These changes of serological parameters may provide an experimental basis for the elucidation of Lmna gene functions.
A型层固定表达的丧失会损害导致肌营养不良症的核隐膜完整性。
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影响因子: 7.8
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期刊: Nucleus (Austin, Tex.)
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发表时间: 2002-03-01
影响因子: 3.1
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