Boyd Haley comments on vD estrogen testosterone: Why are boys at higher risk?

[Guest guest]

What Teresa has discovered just may be very important. This fits

into what we found regarding the protection of brain neurons in culture

with estrogen and the enhanced toxicity of testosterone. There may

likely be other reasons also.

 

Boyd E. Haley, PhD

Professor Emeritus

 

University of Kentucky

Chemistry Department

 

 

Teresa Binstock <binstock

Why are boys at higher risk? The reason for the striking

4:1 sex difference is totally unknown. However, there is a clue or two.

 

Estrogen

and

 

testosterone

have very different effects on vitamin D

 

metabolism

.. In mid-pregnancy, when brains are rapidly developing, boy brains bathe

in testosterone and girl brains bathe in estrogen. The majority of

studies have found estrogen has multiple enhancing effects on vitamin D

metabolism while testosterone does not. For example, in Feldman's massive

textbook on vitamin D, Dr. Epstein and Dr. Schneider report, " the

majority of studies have found a positive effect of estrogen on activated

vitamin D levels. " Yet, after reviewing similar studies on

testosterone they conclude that " it is unlikely that testosterone is

a major controlling factor in vitamin D metabolism. " If estrogen

potentiates activated vitamin D, but testosterone does not, the

differences in sex

 

steroids

during brain development may mean that estrogen protects developing

female brains from vitamin D deficiencies, while testosterone exposes

male brains to those same deficiencies. This is important because any

good theory must be parsimonious (explain all known facts).

 

Epstein S, Schneider AE. Drug and hormone effects on vitamin D

metabolism.

 

In Feldman D, Pike JW, Glorieux FH, eds. Vitamin D. San Diego: Elsevier,

2005.

 

 

 

 

Sheri Nakken, R.N., MA, Hahnemannian Homeopath

Vaccination Information & Choice Network, Washington State, USA

Vaccines -

 

http://vaccinationdangers.wordpress.com/ Homeopathy

 

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