Related Experiment Video
Updated: Jun 30, 2025

06:38
Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
Published on: October 13, 2018
15.4K
Causal association between mTOR-dependent circulating protein levels and central precocious puberty: a Mendelian
Yuanxiao Ying1, Ze Yu2, Liping Wu3
1Department of Pediatrics, Zhoushan Hospital, Wenzhou Medical University, Zhoushan, China.
Frontiers in Endocrinology
|March 22, 2024
Summary
This study found a causal link between plasma eIF4G levels and central precocious puberty (CPP). Lower eIF4G may be associated with reduced CPP risk, warranting further investigation for therapeutic potential.
Area of Science:
- Endocrinology
- Genetics
- Proteomics
Background:
- The mechanistic target of rapamycin (mTOR) pathway influences central precocious puberty (CPP).
- The precise causal relationship between mTOR-dependent proteins and CPP remains undetermined.
Purpose of the Study:
- To investigate the causal effects of seven mTOR-dependent circulating protein levels on CPP using Mendelian randomization (MR).
Main Methods:
- A two-sample MR design was employed.
- Instrumental variables for protein levels were sourced from proteomics-GWAS (INTERVAL) and eQTLGen.
- CPP genetic data were obtained from the FinnGen Consortium; inverse-variance weighted (IVW) analysis was primary, with sensitivity analyses for pleiotropy, heterogeneity, and robustness.
Main Results:
- A significant inverse causal association was found between plasma eIF4G levels and CPP.
- This association was consistent in both discovery (OR = 0.45, p = 0.026) and validation (OR = 0.45, p = 0.014) cohorts.
Conclusions:
- Plasma eIF4G levels are causally associated with central precocious puberty.
- Further research is needed to explore the potential of eIF4G in CPP prevention or treatment.
Related Concept Videos
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
PI3K/mTOR/AKT Signaling Pathway
3.5K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.5K
Abnormal Proliferation
4.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.5K
Signs of Puberty
337
Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
337

