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Abstract
Objective: Proton magnetic resonance spectroscopy (1H-MRS) measurement of liver metabolism in intrauterine growth restriction rats has seldom been reported. This study investigated the application of 1H-MRS in assessing liver metabolism in newborn pups that experienced intrauterine growth restriction.
Methods: Intra-uterine growth restriction was established by feeding rats low-protein diets during pregnancy. Newborn pups received conventional magnetic resonance imaging and 1H-MRS using a 3.0T whole body MR scanner at 3, 8 and 12 weeks post birth.
Results: The success rate of 1H-MRS was 83.33%. Significantly lower body weight, BMI and body length at 3 weeks as well as significantly lower body weight, BMI and waist circumference at 8 and 12 weeks were observed in newborn pups of IUGR rats compared with pups of control rats. Significant differences in ACho/H2O, ACr/H2O, AGlx/H2O and ALipid/H2O at 3 and 8 weeks as well as significant differences in ACr/H2O, ALipid/H2O and AGlx/H2O at 12 weeks were observed between pups of control rats and pups of IUGR rats.
Conclusion: 1H-MRS allows noninvasive assessment of liver metabolism in the rat and demonstrated the poor liver development of rats that experienced IUGR.
Declaration of interest
All authors declared no conflict of interest. This study was supported by Grants from Hunan Science and Technology Department Project, China (2013FJ4074).