How cells let in creatine and how medicine can block it
Structural insights into the substrate uptake and inhibition of the human creatine transporter (hCRT)
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Creatine is not just a supplement—it’s a neurotransmitter in the brain.
Most people think of creatine only for muscle performance, but this study cites evidence it’s stored in synaptic vesicles and released during neural signaling, meeting criteria as a true neurotransmitter.
Practical Takeaways
Maintain healthy sodium and chloride levels to support creatine uptake, especially if using supplements.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Creatine is not just a supplement—it’s a neurotransmitter in the brain.
Most people think of creatine only for muscle performance, but this study cites evidence it’s stored in synaptic vesicles and released during neural signaling, meeting criteria as a true neurotransmitter.
Practical Takeaways
Maintain healthy sodium and chloride levels to support creatine uptake, especially if using supplements.
Publication
Journal
Proceedings of the National Academy of Sciences of the United States of America
Year
2025
Authors
Xin Yuan, Jianrui Yin, Chang Liu, Xudong Chen, Meiying Chen, Yixue Wang, Zi Yang, Yue Wang, Li Jiang, Niyun Zhou, Xiaojuan Wang, Botong Liu, Zhaoqi Ma, Kaiyan Wang, Hongen Li, Sensen Zhang, Yongfeng Shang, Maojun Yang
Related Content
Claims (4)
Your muscles need sodium to pull in creatine, kind of like a battery-powered door — if the battery's dead or there's no sodium around, creatine can't get inside, even if you're drinking plenty of water.
A drug called RGX202 sticks to the same spot on a protein that carries creatine in the body, kind of like two keys trying to fit in the same lock — so creatine can't get in, and its movement gets blocked.
The protein that moves creatine in human cells has a specific 3D shape made of 12 spiral sections, and this shape helps it grab creatine and sodium like a lock and key.
Creatine sticks to a special spot in a human protein using specific handholds, kind of like a key fitting into a lock, with certain parts of the protein helping hold it in place using molecular Velcro and tiny magnets.