Ahhhhh. Dr. Andrew Messenger (*);
I knew him in a lecture in Berlin IMHRS. A good guy, inteligent and.....
Michael Barry, I knew the article cited, and it is interesting but the sentence:
"There was no correlation between hair density and sebum excretion." is so far wrong, in my opinion. He didn't measure sebum scalp but in forehead.
Also I am wondering when it is possible see published the data. Mr Messeguer words:
" We do have clinical data on the distribution of hair thinning
in women over the entire scalp, not yet published."
Armando
(*)
Re: Paper Requested?
De: Andrew Messenger (
[email protected])
Enviado: jueves, 27 de septiembre de 2007 22:24:59
Para: Armando Ya
Dear Mr Ya
I agree it would have been useful to have sampled more than one site on
the scalp in our study population. However, you may appreciate it is not
easy to persuade women to have one site on their scalp shaved, let alone
two. It is also very unlikely that our ethics committee would have
agreed to let us do this. With regard to the Japanese study, they also
sampled only a single site - their upper parietal site was probably not
too far displaced from our site on the frontal scalp lateral to the
midline. We do have clinical data on the distribution of hair thinning
in women over the entire scalp, not yet published.
It is indeed possible that balding is related in some way to events in
the upper part of the hair follicle. Conceivably this could involve
sebum but there are many variables (excretion rate, pooling in the
infundibulum, sebum composition, colonisation of the follicle by
sebotrophic micro-organisms, wicking onto hair shafts) which make it
difficult - though not impossible if funding is available - to devise
informative experiments.
regards
My Question about this: “It was a pity that you were not carried out phototrichograms in the parietal area, similar to this work.
>
> Journal of Investigative Dermatology Symposium Proceedings (2003) 8,
> 116–120; doi:10.1046/j.1523-1747.2003.12184.x
>
>
> Phototrichogram Analysis of Japanese Female Subjects with Chronic
> Diffuse Hair Loss
Dear Dr. Andrew Messenger
Thank you very much for your formative and informative response. Funds are necessary in order to make experiments.
I am very convinced that there is a reverse relation between hair density in parietal zone (genetic fixed and normally not change with common baldness) and the incidence of common baldness, in both sexes. The same with hair thickness and even hair length. I thought that in a university campus, it not difficult to recruit one or two hundred of persons interested in this issue. It is sufficient have the instrumental, photograph camera, software, personal and other utilities to make the experiment. On the other hand, I'll add the possible interference of oxidized sebum with the travel of stem cells from the bulge area to the dermal papilla, the problems with sebum flow are not confined to the upper part of the hair follicle in my opinion.
I'll pay attention when you publish clinical data on the distribution of hair thinning in women over the entire scalp.
By the way, what do you think about the possible presence of androgens in the vicinity of pilosebaceous scalp hairs in children? Is easy postulate it because children, both sexes, have the best hair, and they have sebum in these years. Plucked hair of healthy and prepubertal people is sufficient to test this issue. I think that HPLC/RIA or PCR is sufficient to demonstrate that the current androgenética theory have serious problems.
Best regards
Armando Yañez
Armando Ya wrote:
>
> Dear Dr. A. G. Messenger;
>
> Thank you very much for your quick response.
>
> After reading your interesting work, I have some comments
>
> It was a pity that you were not carried out phototrichograms in the
> parietal area, similar to this work.
>
> Journal of Investigative Dermatology Symposium Proceedings (2003) 8,
> 116–120; doi:10.1046/j.1523-1747.2003.12184.x
>
>
> Phototrichogram Analysis of Japanese Female Subjects with Chronic
> Diffuse Hair Loss
>
>
> Rie Ueki, Ryoji Tsuboi^_1_
> <http://www.nature.com/jidsp/journal/v8/n1/full/5640103a.html#note1#note1>
> , Yutaka Inaba^_*_
> <http://www.nature.com/jidsp/journal/v8/n1/full/5640103a.html#aff1#aff1>
> and Hideoki Ogawa
>
>
>
> So, under my point of view, key results could be obtained to figure
> out the process of the common alopecia.
>
>
>
> I am very interested in carrying out some experiment in this way, also
> in men.
>
>
>
> According to my theory, problems in sebum flow are the initial and
> triggering cause for common baldness. A person with a high hair
> density and a thicker hair are protected in this issue, as point out
> the investigations.
>
>
>
> Alls comments are welcome.
>
>
>
> Yours sincerely
>
>
>
> Armando J Yañez Soler
>
>
>
>
http://www.againstalopeciaandbaldness.com
>
>
>
> > Date: Wed, 19 Sep 2007 22:47:31 +0100
> > From:
[email protected]
> > To:
[email protected]
> > Subject: Re: Paper Requested
> >
> > Paper as requested
> > best wishes
> > Andrew Messenger
> >
> > Armando Ya wrote:
> > > Dear Dr. A.G. Messenger;
> > >
> > > I am very interested in your work
> > >
> > > Hair density, hair diameter and the prevalence of female pattern hair
> > > loss.
> > > Br J Dermatol 2001; 144: 297–304.
> > >
> > > Can you send me an electronic copy by e-mail?
> > >
> > > Thank you in advance.
> > >
> > > Armando J Yañez Soler
> > > e-mail: > > >
> > >
Andrew Messenger
Department of Dermatology
Royal Hallamshire Hospital
Sheffield S10 2JF