Sex differences in metabolic phenotype and hypothalamic inflammation in the 3xTg-AD mouse model of Alzheimer's disease.
Biol Sex Differ
; 14(1): 51, 2023 08 09.
Article
en En
| MEDLINE
| ID: mdl-37559092
Alzheimer's disease (AD), often associated with memory loss, can also affect other parts of the brain and body, resulting in several other symptoms. Changes in appetite and body weight are commonly seen in people with AD, often before they start showing signs of memory loss. These metabolism-related changes are likely due in part to AD affecting a part of the brain called the hypothalamus, which controls important functions like energy balance (calories in vs. calories out) and blood sugar levels. This study aimed to examine whether changes in metabolism and the hypothalamus could serve as early signs of AD, and even help in treating the disease. We also wanted to see if these changes were influenced by biological sex, as two-thirds of AD patients are women, and our previous studies showed many differences between males and females. In this study, we observed male and female mice at different ages to see when these changes began to appear. We found that male AD mice gained less weight, had less body fat, and had better blood sugar control, compared to female AD mice. These differences became noticeable at the same age that we noticed signs of increased inflammation in the hypothalamus of male mice. These findings suggest that AD affects males and females differently, particularly in terms of energy balance and blood sugar control, and this might be related to inflammation in the hypothalamus. This research could provide valuable insights into understanding, diagnosing, and treating Alzheimer's disease.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedad de Alzheimer
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Biol Sex Differ
Año:
2023
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Reino Unido