Lactation Failure in Src Knockout Mice
Author Information
Author(s): Harriet Watkin, Monica M Richert, Andrew Lewis, Kristina Terrell, James P McManaman, Steven M Anderson
Primary Institution: University of Colorado Health Sciences Center
Hypothesis
Src plays a role in mammary gland development and lactation.
Conclusion
Src is essential for secretory activation in the mammary gland, and its absence leads to lactation failure and precocious involution.
Supporting Evidence
- Src-/- mice showed a lactation defect resulting in over 80% of litters dying.
- Serum prolactin levels were normal in Src-/- mice compared to wildtype controls.
- Expression of the prolactin receptor was decreased in Src-/- mice during lactation.
- Src-/- mice exhibited precocious involution of mammary glands even when nursing.
Takeaway
Mice without Src can't produce enough milk for their babies, leading to many deaths among the pups.
Methodology
The study involved examining mammary gland development and function in Src knockout mice during pregnancy and lactation, measuring serum prolactin levels, and analyzing milk protein gene expression.
Potential Biases
Potential bias in interpreting results due to the specific genetic background of the knockout mice.
Limitations
The study primarily focused on Src knockout mice, which may not fully represent the complexity of lactation in other contexts.
Participant Demographics
Mice were of mixed 129Sv × C57Bl6 background.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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