6 Reported Studies on LLT in Hair Loss

[Guest guest]

Normal 0 false false false

MicrosoftInternetExplorer4 Reported Studies of LLLT in Hair Loss (Man & Woman)

http://www.manegain.com/3%20-%20Reported%20Studies%20of%20LLLT%20in%20Hair%20Los\

s.pdf

 

Professor Andre Mester (1964)

 

In 1964, Professor Andre Mester began experimenting with theuse of low-power

laser energy in Budapest, Hungary. Heobserved that low energy laser exposure has

a stimulating effect on thebiological system, while high-energy laser exposure

had an inhibiting effect.In his experiments with wound treatment on mice, he

noticed rapid healing dueto microcirculation of blood supply. This healing was

also obvious in laserlight treatment of diabetic patients suffering with

dystrophic sores. He wasamazed to find sores that would not otherwise heal were

healed, and he alsoobserved accelerated hair growth and thickening of hair in

the treated areas.This theory through its evolution has since been refined and

is widely becomingone of the most popular non-invasive hair loss treatments.

Laser researcher Dr.J. Layton states: … **Laser Hair Therapy increases

microcirculation ofthe hair follicle, which allows nutrients and freshly

oxygenated blood toaccess the hair follicle with the results being a stimulation

of the naturalhair growth cycle.**

 

Dr. Trelles (1984)

 

In 1984, Dr. Trelles showed in one study that patients withalopecia areata who

were treated with He-Ne laser 632,8 nm showed a goodresponse. Dr. Trelles

reported that most of the patients with alopecia areataresponded well after only

6 to 8 treatments administered twice a week for acouple of weeks. The He-Ne

laser was placed 30 centimeters from the alopeciaareata with dosages ranging

from 3-4 Joule per sq. cm. No fibres or lenses wereused. In the same study,

microscopic evaluation of the hair shaft structure onthe alopecia areata

irradiated areas showed a clear medulla rich in keratinafter treatment. Daily

treatments appeared to prevent regrowth, causing irritationwith probable

increase in hair loss.

 

Japan LaserTherapy Association (1992)

 

At the 4th annual Meeting of the Japan Laser TherapyAssociation in 1992, success

was reported with an increase in both hair growthand the density of the hair

follicles in the laser treated areas of both maleand female stress alopecia and

alopecia areata with only one failure out of 40cases reported in two papers.

 

Laser Conference, HelsinkiFinland(1993)

 

An unpublished study presented at Laser Conference, Helsinki, Finland1993 shows

the effect of LLLT on Androgenetic Alopecia. A double-blindcomparative study

with placebo laser for treatment of Hereditary AndrogeneticAlopecia in young

males was presented in Helsinki 1993 describing the positive effect of LLLT

treatments on hair growth,stop of hair loss and hair shaft tensile strength.

 

At the Helsinki Laser Conference research resultsdemonstrating the effect of

LLLT compared to a placebo group was presented. Itwas found that hair re-growth

was clearly shown in the laser group. In additionall patients, with the

exception of one, in the laser-treated group showed acomplete stop of hair loss.

All patients, except 3, showed a clear hairre-growth of hair with a reduction of

at least one category in the Hamilton classification.

 

Post-treatment showed the dermis with almost the same amountof hair follicles as

pretreatment, although a number of new follicles could beseen with clearly

noticeable hair growth. 50% of the follicles are now in theanagen phase

(growth).

 

When comparing the histological findings, transformationinto anagen hair

follicles could be observed in 83% of the patients on lasertreatment but in none

of the placebo patients. Out of 18 patients, 14 showed anincrease in hair

thickness, and all 18 showed improvement in general hair shaftquality measured

with the hair stretcher.

 

The results showed no improvement in the placebo group orany adverse effects of

the treatment.

 

Prof. Pekka J. Pöntinen (1996)

 

Professor Pöntinen is one of the pioneers of LLLT in Scandinavia thorough

theoretical and practical studies onhow to apply low level laser therapy in the

treatment of chronic, especiallymusculoskeletal and myofascial pain and

dysfunction, vascular disturbances,wound and ulcer treatment etc.

 

Prof. Pekka J. Pöntinen established the beneficial effect ofLaser Hair Care®

on scalp blood flow and published his results in 1996.

 

The effects of hair lasers on skin blood flow were measuredon three different

devices to establish the effect of scalp blood flow. Thehair lasers used were

Laser Hair Care (670 nm ), a He-Ne (632.8 nm ) lasercontaining one laser

transferring light via fibres and lenses to the patientand a laser identical to

the Laser Hair Care where the lasers were replaced(placebo).

 

The differences in the laser systems are illustrated by thefact that Laser Hair

Care increased scalp blood flow by 54%. The He-Ne hairlaser had no effect while

the Placebo decreased flow rate by 36%. In addition,the skin temperatures

measured before and after the treatment showed littlechange.

 

European Studies (1997)

 

In 1997 a European group of scientist’s published their workon LLLT in the

treatment of alopecia of the scalp. The authors tried to verifythe efficacy of

low energy laser (LLLT) in scalp alopecia. Sixty patients weredivided in two

groups: A) laser group, 33 patients treated with both LLLT andclassical therapy;

control group, 27 patients treated only with classicaltherapy, Before, during

and after treatment, historical samples were done.

 

For the group A the results were rather superior but in atwice shorter time

shorter time than group B. The maintenance of the goodresults needed classical

therapy for a long period. They conclude that LLLTtherapy could have a useful

complementary method for the treatment of scalpalopecia.

 

The same European group of scientist’s published theirfindings on LLLT use in

the treatment of alopecia and crural ulcers in 1998.The authors tried to verify

the efficacy of LLLT in scalp alopecia and cruralulcers of different causes.

Laser used was (red diode, continuous emission, 8mW power, wave length 670 nm

spot size about 5 mm diameter on some points. Theyalso use as control classical

therapy. Before, during and after treatment,histological samples were taken from

alopecia regions. For the laser groups(alopecia and ulcers) the results were

rather superior and in a three or twicetime shorter than the control group. They

conclude that LLLT therapy is a veryuseful complementary method for the

treatment of scalp alopecia and cruralulcers.

 

 

Study: Long-term (1-year) experiencewith LDS 100 in the treatment of men and

women with androgenetic alopecia

http://www.regrowth.com/lowlevellasertherapy/lds100-androgeneticalopecia.cfm

 http://www.overmachogrande.com/index.php?/omg/studies/long_term_1_year_results\

_of_lllt/