Intergenerational high-fat diet impairs ovarian follicular development in rodents: a systematic review and meta-analysis.
Study Goal
The researchers aimed to investigate the effects of a high-fat diet on ovarian follicles in rodents and its potential impact on fertility.
Results Summary
The study found that a high-fat diet reduced primordial follicles in female rodents and increased cystic follicles while decreasing secondary and antral follicles in their offspring, suggesting impaired fertility in both dams and their female newborns.
Population
Female rodents and their offspring.
Effective Dosage
Not specified.
Duration
Not specified.
Interactions
None mentioned.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
high-fat diet | decrease | primordial follicles | female rodents | - | decrease | #1 |
high-fat diet | increase | number of cystic follicles | offspring of mothers exposed to a high-fat diet | - | increased | #2 |
high-fat diet | decrease | number of secondary follicles | offspring of mothers exposed to a high-fat diet | - | decreased | #3 |
high-fat diet | decrease | number of antral follicles | offspring of mothers exposed to a high-fat diet | - | decreased | #4 |
high-fat diet | decrease | fertility | dams and their female newborns | - | impair | #5 |
high-fat diet | decrease | ovarian follicular development | - | - | causes damage | #6 |
CONTEXT: Excessive consumption of high-fat diets has increased in the population over time and is harmful to female fertility. OBJECTIVE: To investigate and discuss the effects of a high-fat diet on ovarian follicles in rodents. DATA SOURCE: A systematic literature search of PubMed, EMBASE, Web of Science, and SCOPUS was carried out. DATA EXTRACTION: Study characteristics, including study design, population, intervention, outcome, and risk of bias were analyzed. DATA ANALYSIS: Twenty-two articles were included in a systematic review. Given the availability of studies, a quantitative meta-analysis included 12 studies that were performed for outcomes. There was a decrease in primordial follicles in female rodents that received a high-fat diet compared with the standard diet group. The offspring of mothers exposed to a high-fat diet showed an increased number of cystic follicles and a decreased number of secondary follicles and antral follicles, compared with the control diet group. Therefore, these high-fat diet-induced follicular alterations might impair the fertility of dams and their female newborns. CONCLUSION: The consumption of a high-fat diet causes damage to ovarian follicular development, and this commitment will persist in the next generation. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. CRD42019133865.