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From the article:
“During menopause, the serum concentration of FSH strongly increases, binding to the cognate FSH receptor on neurons and activating the C/EBPβ/AEP pathway. This results in Aβ and Tau pathologies, leading to the development of AD,” said Dr. Zaidi Mone, co-corresponding author of the study and a tenured professor at the Mount Sinai School of Medicine in New York.
The researchers employed different methods to demonstrate this finding. Using ovariectomized mice, they used anti-FSH antibody treatment to block FSH and inactivate the C/EBPβ/AEP pathway. They also deleted FSH receptor (FSHR) expression in neurons to abolish the binding of FSH to FSHR in the hippocampus. Both of these methods alleviated pathology and cognitive dysfunction. In addition, knockdown of C/EBPβ in the AD mice model decreased AD pathologies.
Besides working with female mice, the researchers also injected FSH into male mice and discovered that FSH promoted AD pathologies.