First, the relevant quote from the article:
“The serum iron concentration was significantly higher in the RLS group than in the control group, but remained within normal ranges in both groups. In this study, there was a significant correlation between serum and CSF iron concentrations, both in the RLS group and in the control group. However, the slope of the regression line was markedly lower for the RLS group than for the control group. This might suggest that deficiencies in CNS iron levels could be at least partly corrected by oral iron supplementation.”
This quote too: “CSF iron concentrations did not differ significantly between the groups.”
So, clearly, the RLS brain has no problem sucking up iron from free circulating serum iron, just like the rest of the world. AND, more importantly, the higher the serum iron (not ferritin) the higher the brain iron (not brain ferritin). Sadly, if I’m reading this right, as serum iron drops, our CNS iron drops faster than controls.
What’s really odd to me is that not only do we have a larger reservoir of unprocessed dopamine than the average bear, but per the above quote, we also have a larger reservoir of serum iron? Any theorys out there? I have one, but I need to do more research. 💁♀️
The article further indicates that there’s little to no correlation between ferritin and having RLS. Just as many people with high ferritin, as those with low ferritin, have RLS. And RLSers with higher ferritin values are still very low on brain ferritin.
I thank the heavens just about everyday that our brains have no problem calling up iron from our plasma and that serum iron is relatively abundant in humans for 16 hours of the day. Otherwise we would have RLS 24/7/365.
I never get mad or curse the medical community for failing us. The worst I’ve said is they’re irrelevant and we have to do and discover every thing ourselves. Now I’m mad, because now it’s personal 😶. They make this life altering connection between serum iron and brain iron yet there’s no follow-up, no sirens go off, no shouting from the rooftops, no Nobel Prizes in Medicine are awarded??? You bet I’m mad 😡🤬⚡️☠️🔥
Here’s the one lousy article: onlinelibrary.wiley.com/doi...
EDIT: Wait, it gets crazzee-er still. The article cites Dr. Earley’s work, so I just went to the source. We don’t just have more serum iron than controls, we have A LOT more, nearly double.. On average, we with RLS actually have “higher” serum ferritin than controls. And, we’re not just equal in terms of brain iron to controls, we have significantly more - about 25% more. And yes, we’re silly low on brain ferritin compared to controls - 300% lower. Barely even in the ball park. See for yourselves - slides 8 & 9. Why is Dr. Earley ignoring these profound differences and just focusing on brain ferritin? Clearly, the focus should NOT really be on raising serum ferritin, but on maintaining a high level of serum iron, even at night. Timing of oral supplements is EVERYTHING. We need to maintain a high level of serum iron, even at night. Or, if your RLS is mild and intermittent, just take the oral iron on a bad night.