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Physiological and microbiological verification of the benefit of hair washing in patients with skin conditions of the scalp.
J Cosmet Dermatol. 2016 Dec; 15(4):e1-e8.JC

Abstract

BACKGROUND

It is unclear whether hair washing is effective against scalp eruption and pruritus caused by seborrheic dermatitis or psoriasis vulgaris.

AIMS

To assess whether a proper hair-washing regimen, including the use of antibacterial shampoo, can ameliorate scalp eruption symptoms and alter the composition of the scalp microflora.

METHODS

Eighteen patients with seborrheic dermatitis or psoriasis vulgaris scalp eruptions were instructed in proper techniques of daily hair washing, rinsing, and shampooing, which they underwent for 12 weeks. They used control shampoo in weeks 1-4 and 9-12, and an antibacterial shampoo during weeks 5-8. At the start of the test period and at weeks 4, 8, and 12, we assessed scalp symptoms (erythema, scaling/desquamation, dryness, itchiness, and scratching scars); microbial DNA levels from lesion and nonlesion areas; and levels of interleukin (IL)-1α, IL-1ra, and total protein in the scalp's horny layer.

RESULTS

Compared to baseline values, scaling/desquamation and itchiness improved significantly at weeks 8 and 12. Other observed skin symptoms also improved over time. Malassezia colonization levels in lesion and nonlesion areas decreased gradually; the decrease was significant at week 8 in lesion areas and at weeks 4 and 8 in nonlesion areas. Bacterial colonization levels also decreased gradually, achieving significance in lesion areas at week 4. Gradual decreases in IL-1ra/IL-1α level showed statistical significance at weeks 4 and 12, while the protein quantity significantly decreased at week 12.

CONCLUSION

Proper hair washing improved scalp condition symptoms, and possibly the underlying etiology.

Authors+Show Affiliations

Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan.Department of Dermatology, JR Sapporo Hospital, Sapporo, Japan.Department of Microbiology, Meiji Pharmaceutical University, Kiyose, Japan.Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan.Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan.Tokiwa Pharmaceutical Co., Ltd., Tokyo, Japan.Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27229771

Citation

Kobayashi, Miwa, et al. "Physiological and Microbiological Verification of the Benefit of Hair Washing in Patients With Skin Conditions of the Scalp." Journal of Cosmetic Dermatology, vol. 15, no. 4, 2016, pp. e1-e8.
Kobayashi M, Ito K, Sugita T, et al. Physiological and microbiological verification of the benefit of hair washing in patients with skin conditions of the scalp. J Cosmet Dermatol. 2016;15(4):e1-e8.
Kobayashi, M., Ito, K., Sugita, T., Murakami, Y., Yamashita, R., Matsunaka, H., & Nakamura, M. (2016). Physiological and microbiological verification of the benefit of hair washing in patients with skin conditions of the scalp. Journal of Cosmetic Dermatology, 15(4), e1-e8. https://doi.org/10.1111/jocd.12228
Kobayashi M, et al. Physiological and Microbiological Verification of the Benefit of Hair Washing in Patients With Skin Conditions of the Scalp. J Cosmet Dermatol. 2016;15(4):e1-e8. PubMed PMID: 27229771.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physiological and microbiological verification of the benefit of hair washing in patients with skin conditions of the scalp. AU - Kobayashi,Miwa, AU - Ito,Kei, AU - Sugita,Takashi, AU - Murakami,Yumi, AU - Yamashita,Ryoko, AU - Matsunaka,Hiroshi, AU - Nakamura,Motonobu, Y1 - 2016/05/26/ PY - 2016/04/05/accepted PY - 2016/5/28/pubmed PY - 2017/7/19/medline PY - 2016/5/28/entrez KW - Malassezia spp. KW - bacteria KW - proper hair washing KW - psoriasis vulgaris KW - seborrheic dermatitis KW - shampoo SP - e1 EP - e8 JF - Journal of cosmetic dermatology JO - J Cosmet Dermatol VL - 15 IS - 4 N2 - BACKGROUND: It is unclear whether hair washing is effective against scalp eruption and pruritus caused by seborrheic dermatitis or psoriasis vulgaris. AIMS: To assess whether a proper hair-washing regimen, including the use of antibacterial shampoo, can ameliorate scalp eruption symptoms and alter the composition of the scalp microflora. METHODS: Eighteen patients with seborrheic dermatitis or psoriasis vulgaris scalp eruptions were instructed in proper techniques of daily hair washing, rinsing, and shampooing, which they underwent for 12 weeks. They used control shampoo in weeks 1-4 and 9-12, and an antibacterial shampoo during weeks 5-8. At the start of the test period and at weeks 4, 8, and 12, we assessed scalp symptoms (erythema, scaling/desquamation, dryness, itchiness, and scratching scars); microbial DNA levels from lesion and nonlesion areas; and levels of interleukin (IL)-1α, IL-1ra, and total protein in the scalp's horny layer. RESULTS: Compared to baseline values, scaling/desquamation and itchiness improved significantly at weeks 8 and 12. Other observed skin symptoms also improved over time. Malassezia colonization levels in lesion and nonlesion areas decreased gradually; the decrease was significant at week 8 in lesion areas and at weeks 4 and 8 in nonlesion areas. Bacterial colonization levels also decreased gradually, achieving significance in lesion areas at week 4. Gradual decreases in IL-1ra/IL-1α level showed statistical significance at weeks 4 and 12, while the protein quantity significantly decreased at week 12. CONCLUSION: Proper hair washing improved scalp condition symptoms, and possibly the underlying etiology. SN - 1473-2165 UR - https://www.unboundmedicine.com/medline/citation/27229771/Physiological_and_microbiological_verification_of_the_benefit_of_hair_washing_in_patients_with_skin_conditions_of_the_scalp_ DB - PRIME DP - Unbound Medicine ER -