From: trigonometry1972 on
On Nov 10, 5:56 pm, Mark Probert <mark.prob...(a)gmail.com> wrote:
> On Nov 10, 8:38 pm, bigvince <vince.mirag...(a)gmail.com> wrote:
>
>
>
> >  Vitamin d deficiency is a worldwide pandemic .  ........."Am J Clin
> > Nutr. 2008 Apr;87(4):1080S-6S.
> > Vitamin D deficiency: a worldwide problem with health consequences.
>
> > Holick MF, Chen TC.
>
> > Department of Medicine, Boston University School of Medicine, 715
> > Albany Street, M-1013, Boston, MA 02118, USA. mfhol...(a)bu.edu
>
> > Vitamin D deficiency is now recognized as a pandemic. The major cause
> > of vitamin D deficiency is the lack of appreciation that sun exposure
> > in moderation is the major source of vitamin D for most
> > humans..........
>
> >   And  low levels of vitamin d have been linked to multiple health
> > problems..... The vitamin D epidemic and its health consequences.
>
> > Holick MF.
>
> > Boston University School of Medicine, Department of Medicine, Section
> > of Endocrinology, Vitamin D Laboratory, Boston, MA 02118, USA.
> > mfhol...(a)bu.edu
>
> > Vitamin D deficiency is now recognized as an epidemic in the United
> > States. The major source of vitamin D for both children and adults is
> > from sensible sun exposure. In the absence of sun exposure 1000 IU of
> > cholecalciferol is required daily for both children and adults.
> > Vitamin D deficiency causes poor mineralization of the collagen matrix
> > in young children's bones leading to growth retardation and bone
> > deformities known as rickets. In adults, vitamin D deficiency induces
> > secondary hyperparathyroidism, which causes a loss of matrix and
> > minerals, thus increasing the risk of osteoporosis and fractures. In
> > addition, the poor mineralization of newly laid down bone matrix in
> > adult bone results in the painful bone disease of osteomalacia.
> > Vitamin D deficiency causes muscle weakness, increasing the risk of
> > falling and fractures. Vitamin D deficiency also has other serious
> > consequences on overall health and well-being. There is mounting
> > scientific evidence that implicates vitamin D deficiency with an
> > increased risk of type I diabetes, multiple sclerosis, rheumatoid
> > arthritis, hypertension, cardiovascular heart disease, and many common
> > deadly cancers. Vigilance of one's vitamin D status by the yearly
> > measurement of 25-hydroxyvitamin D should be part of an annual
> > physical examination.
>
> > PMID: 16251641 [PubMed
>
> >  So the real question is how much  serious damage is being done by the
> > "Dark lords of medicine '
>
> You say the dermtologists are opposed to sun exposure?
>
> Provide proof. I have never seen that.

Wow. I've seen plenty of articles which solely warn
of the sun and advise use of ample sun screen.
Certainly others have seen this advice and have
commented. I provide two abstracts in
this class and then a third one in the class
of "run from the sun."

The dermatologists show too little concern
about blood value of 25 OH vitamin D levels.
But at most hand out the lame and discredited
supplement level dosing advice of IOM. The
200, 400, and 600 IU as doses nonsense.
These dose level require UV exposure to
get to healthy blood levels of 25 OH vitamin D3.

I recall a young women slopping sunscreen on
her red haired young kids at ~5:30 PM at a graduation
picnic a several years ago. That seemed a bit much and
bit late.

.. PLoS One. 2009 Aug 3;4(8):e6477.

Pigmentation and vitamin D metabolism in Caucasians:
low vitamin D serum levels in fair skin types in the UK.

Glass D, Lens M, Swaminathan R, Spector TD, Bataille V.

Department of Twin Research and Genetic Epidemiology,
Kings College London, St Thomas' Hospital Campus,
London, UK.

BACKGROUND:
Vitamin D may play a protective role in many diseases.
Public health messages are advocating sun avoidance to
reduce skin cancer risk but the potential deleterious
effects of these recommendations for vitamin D metabolism
have been poorly investigated.

METHODOLOGY/PRINCIPAL FINDINGS:
We investigated the association between 25-hydroxy-
vitamin D (25(OH)D), skin type and ultraviolet exposure
in 1414 Caucasian females in the UK. Mean age of the cohort
was 47 years (18-79) and mean 25(OH)D levels were 77 nmol/L
(6-289). 25(OH)D levels were strongly associated with season
of sampling with higher levels in the spring and
summer months (p<0.0001). Light skin types (skin type 1
and 2) have lower levels of 25(OH)D (mean 71 nmol/L) compared
to darker skin types (skin type 3 and 4) (mean 82 nmol/L)
after adjusting for multiple confounders (p<0.0001).
The trend for increasing risk of low vitamin D with
fairer skin types was highly significant despite adjustment
for all confounders (p = 0.001).

CONCLUSIONS/SIGNIFICANCE:
Contrary to previous studies across different
ethnic backgrounds, this study within Caucasian UK
females shows that fair skin types have lower levels of
25(OH)D compared to darker skin types with potential
detrimental health effects. Public health campaigns
advocating sun avoidance in fair skinned individuals
may need to be revised in view of their risk of vitamin
D deficiency.

PMCID: 2714459
PMID: 19649299

1. J R Soc Promot Health. 2008 Jul;128(4):164-9.

Sun safety: what are the health messages?

Hedges T, Scriven A.

HCML Health & Case Management Limited,
Melrose House, 42 Dingwall Road,
Croydon, Surrey CR0 2NE.
trudy.hedges(a)hcml.co.uk

Solar ultraviolet radiation (UVR) is a human carcinogen.
The UK and the worldwide incidence of cutaneous (skin) melanoma
are rising. It is now the second most common cancer in 15-34
year-olds in the UK, increasing by 49% in 1991-2000. The
UK government prioritized skin cancer in 1992 in their
public health strategy The Health of the Nation, and set
the target for reducing the yearly rise in skin cancer
incidence by 2005. In 1998 in the Saving Lives: Our Healthier
Nation strategy, targets were set to reduce the death rate
from cancer, including skin cancer, by 20% by 2010. As a
consequence of these targets, since the mid-1990s public
health campaigns to reduce sun exposure and skin cancer
incidence in the UK have used specific interventions for
at-risk groups and the mass media to reach the general
population. Evidence indicates a shift in knowledge, with
further work required to increase change in behaviour and
attitudes. An associate health problem is vitamin D deficiency,
which is prevalent across certain UK population groups.
The main childhood health problem associated with vitamin D
deficiency is the development of rickets, with evidence
indicating those at high risk are exclusively breastfed
dark-skinned infants, the elderly, those with dark
skin pigmentation, and certain cultural groups that
cover their bodies in clothing. Adolescents are the group
with the highest incidence of low vitamin D status in the UK,
with children of Asian descent at higher risk than Caucasian
children. Increasing the outdoor activity levels of children
in winter and during the cooler hours in summer is one way of
increasing safe sun exposure. It is imperative to educate
the general public on the risk of vitamin D deficiency, and
offer advice on safe sun exposure, dietary sources of
vitamin D, and dietary supplements. More research is required
on recommendations for daily vitamin D supplements to
determine optimal vitamin D levels in different population
groups. There also needs to be reliable and accessible
evidence on the links between vitamin D deficiency and lack
of sun exposure, with sun safe messages adjusted
accordingly.

PMID: 18678111 [PubMed - indexed for MEDLINE]

=================================

Br J Dermatol. 2009 Nov;161 Suppl 3:5-12.

Certification of sun protection practices
in a German child day-care centre improves
children's sun protection--the 'SunPass' pilot study.

Aulbert W, Parpart C, Schulz-Hornbostel R, Hinrichs B,
Krüger-Corcoran D, Stockfleth E.

Department of Dermatology,
Charité, Skin Cancer Centre Charité,
University Hospital of Berlin,
Berlin, Germany.

BACKGROUND:
Nonmelanoma skin cancer (NMSC) and malignant melanoma
(CMM) are among the most common malignancies in the
white population. The major risk factor for those
malignancies is ultraviolet radiation (UV) causing
directly DNA damage and promoting the development of
skin cancer. It is suggested that the exposure to UV
during childhood elevates an individual's lifetime
risk of developing skin cancer more than exposure in
adulthood. Since an increasing number of children spend
the time of the most intense UV in a day-care centre,
it seems an excellent place for establishing primary
skin cancer prevention. Important targets are staff
members and parents of the day-care centre, since
sun protection of children depends directly on their
knowledge and their attitude towards sun protection
practices.

OBJECTIVES:
To establish a feasible certification program for sun
protection in a German child day-care centre, for a
better sun protection of the children and the
reduction of skin cancer incidence in the long term.

METHODS:
Initially sun protection practices of the centre at
baseline were assessed. A written sun protection policy was
developed in consultation with all members of the
day-care centre as basis for certification. It was
followed by training sessions for staff members (n=12)
and parents (n=46). After a fixed period of time the
final assessment of the child day-care centre was conducted
and the centre then was certified for improved sun protection
practices and better protection of the children. The primary
assessed outcomes were the gain in knowledge of staff
members and parents after the training sessions, the number
of children wearing a hat when playing outside, the use
of sunscreen and the percentage of shaded areas
on the playground.

RESULTS:
Sun protection was an issue more discussed during the
time of intervention than before. Staff members (n=12)
and parents (n=27) had a significant gain in knowledge
(staff members: P=0.002; parents: P=0.001) concerning
sun related issues. The number of children wearing a hat
increased from 13.2% to 73%. The sunscreen use increased,
58.8% of staff members reported a more regular application
of sunscreen to the children. There was a higher
percentage of shaded area on the playground
(70-80% before intervention, 90% after intervention).
The intervention failed in keeping the children inside
during the most intense UV and in educating the staff
members to be a convincing example of sun protection
by wearing appropriate clothes.

CONCLUSIONS:
The intervention showed that the introduction of a
simple certification program including a written
sun protection policy and training sessions for
staff members and parents helps to improve children's
sun protection. We suggest that a certificate for
adequate sun protection acts as a motivating factor.
It seems important to refresh sun protection
practices each year by repeating training
sessions and reviewing the sun protection policy.

PMID: 19775351 [PubMed - in process]

But are they checking the vitamin levels?