Acne - Further Considerations
Consider the
following evidence:
An
Australian study conducted in November 2006 found that,
over a period of 12 weeks, there was a 50% reduction in mild to
moderate facial
Acne when the subjects were placed on a diet that consisted of high
levels of
protein and a low GI (Glycemic Index).
In
a recent study, it was shown that, in a diet sufficiently
high in sugars, this would activate the liver to convert these sugars
into
lipid (a fatty substance found in the blood). A side-effect of this
reaction is
that it stops the production of
Sex
hormone binding globulin (which is a glycoprotein that binds to sex
hormones,
specifically testosterone and estradiol). The binding
process of this
chemical can help to reduce
the
level of testosterone in the blood. Since it is known that high levels
of
testosterone are able to trigger Acne, then the inference drawn from
this study
is that a diet containing high levels of sugar can be a cause of Acne.
Research has
shown that recently diagnosed Acne patients
display lower levels of vitamin A in their bloodstream than those who
do not
have Acne. Furthermore, patients exhibiting severe Acne tend to have
lower blood
levels of vitamin E.
Hygiene: Blackheads and Whiteheads
A
blackhead (also known as an open comedo) is a yellow or
black lump or plug on the surface of the skin. It is, in fact, a form
of Acne
vulgaris. In contrast to the popular belief that it is caused by
inadequate
hygiene, blackheads are produced when excess oils collect in the duct
of the
sebaceous gland (which are
microscopic glands in the skin which expel an oily/waxy substance,
called sebum, to lubricate
all skin sites,
except the palms and soles, but most especially the face and scalp).
The
material occurring in these lumps consists mainly of keratin (a tough,
fibrous
protein) and modified sebum, which darkens as it oxidises. Clogged hair
follicles (which is a
constituent of
the skin that produces hair by compacting old cells together, and is
attached
to a sebaceous gland), where blackheads often occur,
reflect light in a
non-uniform manner to produce a blackhead's "black" colouration. This
is why the blockage may not necessarily look black when removed from
the pore,
but may have a more yellow-brown colour due to its melanin (which
serves as a
pigment) content.
On the other hand, a
"whitehead" (also known as a
pimple or a closed comedo) is a follicle that contains sebum, but has a
microscopic opening to the skin surface. Because air is unable to reach
the
follicle, the sebum is not oxidised, and therefore remains white.
There
is no correlation between the presence of dirt and the
incidence of Acne. This historical anomaly was probably instigated by
the fact
that blackheads look like dirt lodged in the openings of pores in the
skin. The
black colour is, indeed, not dirt but solely due to oxidised keratin.
Such
blockages caused by keratin that give rise to Acne take place deep
inside the
narrow follicle channel, as a result of which they cannot be washed way.
Acne –
How To Succeed
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