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Dr. Ashok Kumar

Assistant Professor

Assistant Professor in Vitiligo Research Chair

كلية الطب
مبنى كلية الطب- الدور الثالث
المنشورات
مقال فى مجلة
2011

Depigmentation therapies for normal skin in vitiligo universalis.

, Alghamdi KM and Kumar A . 2011

If vitiligo involves most of the body, it might be easier to depigment the normal remaining skin rather than to attempt repigmentation. We reviewed the literature to date regarding available therapies for depigmenting the normal skin in vitiligo universalis. Our review revealed that the threshold regarding what percentage of body surface area qualifies as depigmentation is variable among practitioners. Monobenzyl ether of hydroquinone (MBEH) is the most widely used depigmenting agent and has few side-effects. Tretinoin in combination with MBEH is able to speed depigmentation of the skin. Monomethylether of hydroquinone has also been used successfully for depigmentation. Eighty-eight per cent phenol is also effective in depigmenting the skin but its application on large areas is toxic for liver and kidney. Different types of lasers are also available to destruct the melanocytes selectively, but this technique can be painful and expensive. Cryotherapy is a cheap depigmenting therapy but, because of scarring risk, it should only be used by experienced dermatologists. No trials have compared the efficacy of the above-mentioned well-established depigmentation agents/techniques. Certain drugs such as imatinib, imiquimod and diphencyprone, which are used to treat other diseases, caused depigmentation as a side-effect. Some depigmentation agents used for branding cattle can also serve as topical depigmentation agents. In conclusion, comparative clinical trials are needed to compare the efficacy of various depigmentation agents/techniques. In particular, topical imatinib, imiquimod and diphencyprone may be considered as potential depigmenting agents, which require further investigation. This review revealed that MBEH is safe and effective depigmenting agent.

نوع عمل المنشور
Review article
رقم المجلد
25
رقم الانشاء
7
مجلة/صحيفة
J Eur Acad Dermatol Venereol
الصفحات
749-757
مزيد من المنشورات
publications

CONTEXT:

Premna resinosa (Hochst.) Schauer (Lamiaceae) is used in many places to treat bronchitis, respiratory illness and convulsions of the rib cage.

OBJECTIVE:

This study…

بواسطة Dina A. Albadawi, Ramzi A. Mothana, Jamal M. Khaled, Abdelkhader E. Ashour, Ashok Kumar, Sheikh F. Ahmad, Mansour S. Al-Said, Adnan J. Al-Rehaily and Nawal M. Almusayeib
2017
publications

BACKGROUND::

Varicose veins and the complications of venous disease are common disorders in humans.

OBJECTIVE::

To study the effects of bleomycin as a potential new sclerosing…

بواسطة Alghamdi KM, Kumar A, Rikabi A, Abdullah Hasan AlOmrani, Ashour A, Shaik Shaffi Ahamed
2017
publications

Novel sulfonamides 3-19 with a biologically active 3,4-dimethoxyphenyl moiety were designed and synthesized. The structures of the synthesized compounds were established using elemental analyses,…

بواسطة Mostafa Ghorab, Mansour Alsaid, Yassin Nissan, Abdelkader Ashour, Abdullah Al-Mishari, Ashok Kumar, Sheikh Ahmad
2016