vD estrogen testosterone: Why are boys at higher risk?

[Guest guest]

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

 

http://homeopathycures.wordpress.com

Vaccine Dangers, Childhood Disease Classes & Homeopathy

Online/email courses - next classes start April 28, May 5 & 6

[Guest guest]

It also has been postulated that females process vitamin C more effectively than males, especialy at an early age. This may partiallt explain why there is more ADD in young males than females and why females lose less brain cells than males at advanced ages. Females, however, do have a higher incidence of Alzheimer's disease.--- On Mon, 4/12/10, Sheri Nakken <vaccinedangers wrote:

Sheri Nakken <vaccinedangers vD estrogen testosterone: Why are boys at higher risk?Monday, April 12, 2010, 7:11 PM

 

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. Estrogenand testosteronehave 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 steroidsduring 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, USAVaccines - http://vaccinationdangers.wordpress.com/ Homeopathy http://homeopathycures.wordpress.comVaccine Dangers, Childhood Disease Classes & Homeopathy Online/email courses - next classes start April 28, May 5 & 6