Mi pare di essere in una barzelletta...[
], ce n'è sempre una, come se gli studi sul laser si sprecassero...
Si tratta, se leggi bene, di diversi test:
EXAMPLE 1
Hair Growth Stimulation
Three patients with male pattern baldness are tested for stimulation of hair growth before and after receiving treatment in accordance with the non-ablative method of the present invention. Hair counts are taken from their scalp by utilizing subjective evaluations conducted by trained medical personnel. The LED treatment includes subjecting the target area of the patient's skin to a LED light having a pulse width of 250 msec and a pulse spacing of 250 msec for 90 pulses. Eight treatments over 12 weeks to the entire face with 590 nm multichromatic LED at an intensity ranging from 1.05-2.05#956; Watts. Having a bandwidth of +/#8722;5-15 nm, the LED therefore produces light in the wavelength range of from 575 nm to 605 nm. Further, the treatment maintains a skin temperature below the threshold of thermal injury. The average improvement in hair counts is shown in Table 1.
TABLE 1
Hair Count Pre treatments Post treatments
Percent 0% 65%
Improvement
EXAMPLE 2
Hair Growth Stimulation-Pulsed Treatment
A team of blinded expert graders viewing before and after photos of patients subjected to the non-ablative LILT (“Low Intensity Light Therapy”) of the present invention score the global improvement of hair thickness. Hair counting is also performed.
Six men with male pattern baldness were tested for hair growth stimulation and thickening of hair appearance. The LED treatment includes subjecting the target area of the patient's skin to a LED light having a pulse width of 10 msec and a pulse spacing of 100 msec for a period of 100 pulses. Eight treatments over 12 weeks to the entire face with 590 nm multichromatic LED at an intensity ranging from 1.0-2.0 #956;Watts. Having a bandwidth of +/#8722;5-15 nm, the LED therefore produces light in the wavelength range of from 575 nm to 605 nm. Further, the treatment maintains a skin temperature below the threshold of thermal injury. The average increase in the appearance of hair density is shown in Table 2.
TABLE 2
Averaged Value Increased
Week/Value Hair Density
0 weeks 0%
4 weeks 6%
8 weeks 22%
12 weeks#8194; 54%
EXAMPLE 3
Hair Growth Stimulation-Continuous Wave Treatment
One female with frontal hair loss is tested for hair growth stimulation in accordance with the procedures described in Example 2. Measurements by expert graders are taken from her scalp before and after treatment with a single continuous wave pulse for a total of 200 seconds from a 590 nm multichromatic LED at an intensity of 1.05-2.05#956; Watts. Eight treatments spaced evenly over 12 weeks are administered to the patient's frontal scalp and forehead.
TABLE 3
Averaged Value of
Week/Value Reduction
0 weeks 0%
4 weeks 12%
8 weeks 28%
12 weeks#8194; 43%
EXAMPLE 4
Non-Ablative Skin Therapy for Hair Growth Stimulation
Pulsed Treatment
Human skin is exposed to 180 pulses of a narrowband, multi chromatic 590 nm LED at an energy output of 1.05 microwatts to 2.05 microwatts with a pulse duration (the length of each pulse) of 20 milliseconds and an interpulse interval (time between each pulse) of 100 milliseconds. The treatment is repeated 8 times for 12 weeks to the entire faces of a group of 6 men with severe pattern hair loss. The amount of hair growth as measured by a team of blinded expert graders viewing before and after photos of the treated skin and making hair counts is shown in Table 4.
TABLE 4
Treatment Time
(weeks) Avg. % Increase in Hair Counts
0 0
4 8
8 24
12 68
EXAMPLES 5
Non-Ablative Skin Therapy for Hair Growth Stimulation
Continuous Wave Treatment
Human skin is exposed to 200 second continuous wave of a narrowband, multichromatic 590 nm LED at an energy output of 1.0 microwatts to 2.0 microwatts. The treatment is repeated 8 times for 12 weeks to the entire scalp of a single male pattern baldness subject. The amount of hair growth as measured by a team of blinded expert graders viewing before and after photos of the treated skin is shown in Table 5.
TABLE 5
Treatment Time
(weeks) % Hair Growth Stimulation
0 0
4 6
8 36
12 72
EXAMPLE 6
Non-Ablative Skin Therapy for Hair Growth Stimulation
Pulsed Laser Diode
Also suitable for use in accordance with the present invention is a laser diode. Typical pulse durations will be from about 100 milliseconds to about 1 second, for pulsed treatment, and from about 1 second to about 30 minutes for continuous wave treatment. Suitable operating power for the laser diode includes the range of from about 10 milliwatts to about 1 watt with about 200 milliwatts to 800 milliwatts being preferred. Commercially available laser diodes having a wavelength between 400 nm and 1000 nm can be used. For this example, human scalp skin is exposed to 90 pulses from an 810 nm laser diode at an energy output of 2.0 microwatts. An interpulse spacing of 100 milliseconds is used. The treatment is repeated 6 times for 12 weeks to the entire scalp of three males with scalp baldness. The amount of hair growth is shown in Table 6.
TABLE 6
Treatment Time
(weeks) % Reduction (checks measured)
0 0
4 13
8 38
12 51
EXAMPLE 7
Hair Growth Stimulations-Pulsed Treatment
A team of blinded expert graders viewing before and after photos of 20 patients subjected to the non-ablative LILT (“Low Intensity Light Therapy”) of the present invention score the global improvement of receding frontal hairlines at the temples.
Eight males and one female are tested for hair growth stimulation. The laser diode treatment includes subjecting the target area of the patient's skin to a laser diode light having a pulse width of 400 msec using a 10 cm beam diameter and a pulse frequency of 1 hz (1 pulse per second). Three pulses are administered. Three treatments over 12 weeks to the frontal scalp and forehead with 810 nm lazer diode at an intensity ranging 200 milliwatts/cm2 Thermal injury is produced with blood vessels included among the target chromophores (but no skin wound care is needed). The average change in hair growth density is shown in Table 7.
TABLE 7
Averaged Value of Hair
Week/Value Growth Increase
0 weeks 0%
4 weeks 18%
8 weeks 31%
12 weeks#8194; 34%
EXAMPLE 8
Hair Growth Stimulation-Pulsed Treatment
A team of blinded expert graders viewing before and after photos of patients subjected to the non-ablative LILT (“Low Intensity Light Therapy”) of the present invention score the global improvement of hair counts.
Six males with severe scalp boldness are tested for hair growth stimulation. The laser diode treatment includes subjecting the target area of the patient's skin to a laser 20 diode light having a pulse width of 600 msec and a pulse frequency of 1 hz (1 pulse per second). Three pulses are administered. Six treatments over 12 weeks to the entire scalp with 940 nm laser diode with a 10 cm beam diameter at an intensity ranging 250 milliwatts/cm2. Further, this treatment produces a skin temperature sufficient to produce a non ablative thermal injury. The average hair count increase shown in Table 8.
TABLE 8
Averaged Increase in Hair
Week/Value Counts
0 weeks 0%
2 weeks 8%
7 weeks 31%
12 weeks#8194; 40%
...poi ce ne sono altri con risultati simili, ma già qui si paragonano laser e LED...quindi anche se è sempre il dr. MCDaniel (in realtà è un'equipe compreso A team of blinded expert graders viewing before and after photos of patients subjected to the non-ablative LILT -Low Intensity Light Therapy”) è assolutamente imparziale perché anche i laser danno risultati simili ai LED, ossia quello che si voleva dimostrare qui...(diciamo piuttosto che manca documentazione scientifica che dimostri il contrario...solo pareri e opinioni).
Ciao
MA - r l i n