Where is excess iron stored in the body (not ferritin or serum)?

Ippodrom47

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Jun 7, 2021
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It's always assumed that iron overload can be diagnosed as high transferrin saturation or/and ferritin. If both are normal, then your symptoms must be causes by something else. However, this seems not to be the case. The following study
discusses several cases of iron overload in relation to psychiatric illness. One of the cases is:

Case 6

Mr. F, a 36 year old male, presented with a 16 year history of chronic anxiety and premature ejaculation (less than five seconds). Counselling had been given by both a psychologist and psychiatrist for one and a half years prior to presenting. Amitryptalline had had some success but was discontinued because of weight gain. A physical examination revealed bilateral varicoceles and facial redness. His TSI was 37% and his urine DFO challenge was 4.9 mg iron per 24 hours. He was given 10 mg/kg 1Mof DFO twice a week for ten weeks. Within four weeks the anxiety had significantly decreased and intercourse was estimated to have increased to two to three minutes but the varicoceles persisted. His TSI was reduced to 33% and his urine iron level to 0.8mg per 24 hours. When last seen nine months after DFO therapy he was well, but has not been seen in six months.


His ferritin was 109 pre-treatment and 49 post-treatment. Even the initial value is normal. However, he had iron overload confirmed by the urine DFO challenge, and showed a marked improvement with iron chelation therapy, as well as a 6-fold reduction in urine iron, meaning there was indeed iron overload in his system.

The question is, why both transferrin saturation and ferritin were perfectly normal despite him having obvious iron overload confirmed by the 24-hour urine analysis and treatment results?
If the excess iron is not floating in the serum or stored as ferritin, where can it be coming from? WTF, in other words?


P.S. Another case from the study:

Case 2

Mr. B, a 23 year old male, presented with a ten year history of anxiety, fatigue, light headedness, orchalgia and tinnitus. Several otolaryngology and urological evaluations failed to explain the tinnitus and orchalgia. He was then seen by a psychiatrist who attempted to control the symptoms with medications, all of which were stopped by the patient because of not feeling well on them. Laboratory evaluation revealed persistently elevated TSls, with an average of 58%. A DFO challenge was positive at 2.7 mg of iron per 24 hour urine. He was treated with 10 mg/kg 1Mof DFO twice a week for eight weeks at the end of which time his TSI was normal at 36% and his urine was normal at 0.8 mg per 24 hours. His orchalgia, tinnitus and dizziness totally cleared and his anxiety and fatigue became significantly less. He has been off DFO for 21 months and remains well.


His serum ferritin levels were 140 and 80 pre- and post-treatment respectively. Sure, his saturation was slightly elevated, but not so much as to cause such symptoms, as many sources and doctors would have us believe.
 

DrJ

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Jun 16, 2015
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@Ippodrom47 the "normal range" for serum ferritin is huge. Last test I received quoted normal range as 30-400 ng/mL. That's over a 10x span! Chris Kesser says he tries to get men below 100 when they present with hemochromatosis so you can see that even over 100ng/mL might be high by some reckonings. My personal goal is to get below 100 also.
 

maillol

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Oct 28, 2019
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In tissues all over the body. Blood levels of iron vary even from morning to night. MRI or biopsy is the only real way to know the levels of tissue iron it seems.

Iron stores (ferritin and hemosiderin) can be determined directly by measuring nonheme iron concentrations in various organs. Although it may be desirable to measure total body nonheme iron stores, this is impossible in clinical patients and impractical in most research animals. Consequently, nonheme iron concentration is generally only determined in the liver and spleen because these organs contain large quantities of stored iron and are easily biopsied.

A comparative assessment of excess storage iron distribution in the liver, heart, spleen and pancreas of β-thalassemia major (β-ΤΜ) patients has been carried out using magnetic resonance imaging (MRI)
These studies contradict previous assumptions that serum ferritin and liver iron concentration is proportional to the total body iron stores in β-ΤΜ and especially cardiac iron load.

Magnetic resonance methods promise to provide more effective monitoring of iron deposition in vulnerable tissues, including the liver, heart, and endocrine organs, and could contribute to the development of iron-chelating regimens that more effectively prevent iron toxicity.
 
EMF Mitigation - Flush Niacin - Big 5 Minerals

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