The analysis of vitamin C concentration in organs of gulo(-/-) mice upon vitamin C withdrawal.

Department of Anatomy, Medical Research Center, Seoul National University, Seoul 110-799, Korea.
Immune Network 02/2012; 12(1):18-26. DOI: 10.4110/in.2012.12.1.18
Source: PubMed

ABSTRACT Vitamin C is an essential nutrient for maintaining human life. Vitamin C insufficiency in the plasma is closely related with the development of scurvy. However, in vivo kinetics of vitamin C regarding its storage and consumption is still largely unknown.
We used Gulo(-/-) mice, which cannot synthesize vitamin C like human. Vitamin C level in plasma and organs from Gulo(-/-) mice was examined, and it compared with the level of wild-type mice during 5 weeks.
The significant weight loss of Gulo(-/-) mice was shown at 3 weeks after vitamin C withdrawal. However, there was no differences between wild-type and vitamin C-supplemented Gulo(-/-) mice (3.3 g/L in drinking water). The concentration of vitamin C in plasma and organs was significantly decreased at 1 week after vitamin C withdrawal. Vitamin C is preferentially deposited in adrenal gland, lymph node, lung, and brain. There were no significant changes in the numbers and CD4/CD8 ratio of splenocytes in Gulo(-/-) mice with vitamin C withdrawal for 4 weeks. And the architecture of spleen in Gulo(-/-) mice was disrupted at 5 weeks after vitamin C withdrawal.
The vitamin C level of Gulo(-/-) mice was considerably decreased from 1 week after vitamin C withdrawal. Vitamin C is preferentially stored in some organs such as brain, adrenal gland and lung.

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