Nutritional Programming of Embryonic Development
Author Information
Author(s): Swali Angelina, McMullen Sarah, Hayes Helen, Gambling Lorraine, McArdle Harry J., Langley-Evans Simon C.
Primary Institution: School of Biosciences, University of Nottingham
Hypothesis
This study aimed to capture embryonic gene and protein changes in the whole embryo at the time of nutritional insult rather than downstream phenotypic effects.
Conclusion
Both protein and iron deficiency in utero reduced the nephron complement in adult male rats without damaging the glomerular ultrastructure.
Supporting Evidence
- Prenatal protein or iron restriction led to a significant reduction in nephron endowment at 16 weeks of age.
- Microarray and proteomic analyses identified diet-specific and strain-specific gatekeeper genes.
- The study confirmed that the general response to nutrient deficiency in utero is perturbation of the cell cycle.
- Findings suggest that regulation of the cell cycle and cytoskeletal remodelling are key targets for programming insults.
Takeaway
If pregnant rats don't get enough protein or iron, their babies might not develop enough kidneys, which can cause health problems later.
Methodology
The study used a cross-over design with two established models of maternal protein and iron restriction to identify common 'gatekeeper' genes and proteins.
Potential Biases
Potential bias due to the use of animal models which may not fully replicate human physiology.
Limitations
The study primarily focused on male offspring, which may limit the generalizability of the findings to females.
Participant Demographics
Male Wistar and Rowett Hooded Lister rats were used in the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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