Minimal erythema response (MED) to solar simulated irradiation in normal Indian skin

Vandana Mehta Rai, S. D. Shenoi, C. Balachandran, Sathish Pai

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Background: Phototesting is an essential tool in the investigation of photodermatoses. Aims: The main aim was to study the cutaneous response to UVR in terms of minimal erythema dose (MED) to both UVA and UVB in normal Indian subjects with a solar simulator and to study the relationship of skin type to MED. Methods: One hundred healthy volunteers not on any medication and without any history of photodermatoses were phototested using a solar simulator with whole spectrum irradiation (UVA, UVB and visible light) and only visible and UVA radiation. The tested areas were marked with gentian violet and readings were taken after 24 hrs. Results: Of the 100 volunteers, 48% were males and 52% were females, with a mean age of 36.6 ± 11.6 yrs. The most common skin type among Indians was type 5 (46%) followed by type 4 (41%). The mean MED for UVB was 61.5 ± 17.25J/cm2. The MED for UVA could not be determined as none of the patients showed any erythema after irradiation for 45 minutes. Conclusions: As the MED is found to be low in idiopathic acquired photodermatoses, the MED in the normal population could serve as a baseline data in the investigation.

Original languageEnglish
Pages (from-to)277-279
Number of pages3
JournalIndian Journal of Dermatology, Venereology and Leprology
Volume70
Issue number5
Publication statusPublished - 01-09-2004

Fingerprint

Erythema
Skin
Gentian Violet
Light
Reading
Volunteers
Healthy Volunteers
Population

All Science Journal Classification (ASJC) codes

  • Dermatology

Cite this

@article{11c8172772384bbc846c1a6930ee8321,
title = "Minimal erythema response (MED) to solar simulated irradiation in normal Indian skin",
abstract = "Background: Phototesting is an essential tool in the investigation of photodermatoses. Aims: The main aim was to study the cutaneous response to UVR in terms of minimal erythema dose (MED) to both UVA and UVB in normal Indian subjects with a solar simulator and to study the relationship of skin type to MED. Methods: One hundred healthy volunteers not on any medication and without any history of photodermatoses were phototested using a solar simulator with whole spectrum irradiation (UVA, UVB and visible light) and only visible and UVA radiation. The tested areas were marked with gentian violet and readings were taken after 24 hrs. Results: Of the 100 volunteers, 48{\%} were males and 52{\%} were females, with a mean age of 36.6 ± 11.6 yrs. The most common skin type among Indians was type 5 (46{\%}) followed by type 4 (41{\%}). The mean MED for UVB was 61.5 ± 17.25J/cm2. The MED for UVA could not be determined as none of the patients showed any erythema after irradiation for 45 minutes. Conclusions: As the MED is found to be low in idiopathic acquired photodermatoses, the MED in the normal population could serve as a baseline data in the investigation.",
author = "Rai, {Vandana Mehta} and Shenoi, {S. D.} and C. Balachandran and Sathish Pai",
year = "2004",
month = "9",
day = "1",
language = "English",
volume = "70",
pages = "277--279",
journal = "Indian Journal of Dermatology, Venereology and Leprology",
issn = "0378-6323",
publisher = "Medknow Publications and Media Pvt. Ltd",
number = "5",

}

Minimal erythema response (MED) to solar simulated irradiation in normal Indian skin. / Rai, Vandana Mehta; Shenoi, S. D.; Balachandran, C.; Pai, Sathish.

In: Indian Journal of Dermatology, Venereology and Leprology, Vol. 70, No. 5, 01.09.2004, p. 277-279.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Minimal erythema response (MED) to solar simulated irradiation in normal Indian skin

AU - Rai, Vandana Mehta

AU - Shenoi, S. D.

AU - Balachandran, C.

AU - Pai, Sathish

PY - 2004/9/1

Y1 - 2004/9/1

N2 - Background: Phototesting is an essential tool in the investigation of photodermatoses. Aims: The main aim was to study the cutaneous response to UVR in terms of minimal erythema dose (MED) to both UVA and UVB in normal Indian subjects with a solar simulator and to study the relationship of skin type to MED. Methods: One hundred healthy volunteers not on any medication and without any history of photodermatoses were phototested using a solar simulator with whole spectrum irradiation (UVA, UVB and visible light) and only visible and UVA radiation. The tested areas were marked with gentian violet and readings were taken after 24 hrs. Results: Of the 100 volunteers, 48% were males and 52% were females, with a mean age of 36.6 ± 11.6 yrs. The most common skin type among Indians was type 5 (46%) followed by type 4 (41%). The mean MED for UVB was 61.5 ± 17.25J/cm2. The MED for UVA could not be determined as none of the patients showed any erythema after irradiation for 45 minutes. Conclusions: As the MED is found to be low in idiopathic acquired photodermatoses, the MED in the normal population could serve as a baseline data in the investigation.

AB - Background: Phototesting is an essential tool in the investigation of photodermatoses. Aims: The main aim was to study the cutaneous response to UVR in terms of minimal erythema dose (MED) to both UVA and UVB in normal Indian subjects with a solar simulator and to study the relationship of skin type to MED. Methods: One hundred healthy volunteers not on any medication and without any history of photodermatoses were phototested using a solar simulator with whole spectrum irradiation (UVA, UVB and visible light) and only visible and UVA radiation. The tested areas were marked with gentian violet and readings were taken after 24 hrs. Results: Of the 100 volunteers, 48% were males and 52% were females, with a mean age of 36.6 ± 11.6 yrs. The most common skin type among Indians was type 5 (46%) followed by type 4 (41%). The mean MED for UVB was 61.5 ± 17.25J/cm2. The MED for UVA could not be determined as none of the patients showed any erythema after irradiation for 45 minutes. Conclusions: As the MED is found to be low in idiopathic acquired photodermatoses, the MED in the normal population could serve as a baseline data in the investigation.

UR - http://www.scopus.com/inward/record.url?scp=33646473064&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646473064&partnerID=8YFLogxK

M3 - Article

VL - 70

SP - 277

EP - 279

JO - Indian Journal of Dermatology, Venereology and Leprology

JF - Indian Journal of Dermatology, Venereology and Leprology

SN - 0378-6323

IS - 5

ER -