Keck School Faculty

Vincent Anthony De Leo, MD
Vincent Anthony De Leo, MD
Clinical Professor of Dermatology (Part-Time)
Dermatology
HC4 2000 1450 San Pablo Health Sciences Campus Los Angeles

Occupationally Related Nickel Reactions: A Retrospective Analysis of the North American Contact Dermatitis Group Data 1998-2016 Dermatitis. 2019 Sep/Oct; 30(5):306-313. . View in PubMed

Allergenic ingredients in commercial topical cannabinoid preparations J Am Acad Dermatol. 2019 Mar 15. . View in PubMed

Epidemiology of nickel sensitivity: Retrospective cross-sectional analysis of North American Contact Dermatitis Group data 1994-2014 J Am Acad Dermatol. 2019 Mar; 80(3):701-713. . View in PubMed

Patients with Negative Patch Tests: Retrospective Analysis of North American Contact Dermatitis Group (NACDG) Data 2001-2016 J Am Acad Dermatol. 2019 Jan 11. . View in PubMed

Patients with Negative Patch Tests: Retrospective Analysis of North American Contact Dermatitis Group (NACDG) Data 2001-2016 J Am Acad Dermatol. 2019 Jan 10. . View in PubMed

Digital revolution: dermatology is on the edge Cutis. 2019 Jan; 103(1):7. . View in PubMed

Parabens Dermatitis. 2019 Jan/Feb; 30(1):3-31. . View in PubMed

Parabens: Contact (Non)Allergen of the Year Dermatitis. 2018 Dec 18. . View in PubMed

Parabens: Contact (Non)Allergen of the Year Dermatitis. 2018 Dec 18. . View in PubMed

North American Contact Dermatitis Group Patch Test Results: 2015-2016 Dermatitis. 2018 Nov/Dec; 29(6):297-309. . View in PubMed

Epidemiology of Nickel Sensitivity: Retrospective Cross-Sectional Analysis of North American Contact Dermatitis Group (NACDG) Data 1994-2014 J Am Acad Dermatol. 2018 Oct 17. . View in PubMed

Epidemiology of pediatric nickel sensitivity: Retrospective review of North American Contact Dermatitis Group (NACDG) data 1994-2014 J Am Acad Dermatol. 2018 Oct; 79(4):664-671. . View in PubMed

Epidemiology of pediatric nickel sensitivity: Retrospective review of North American Contact Dermatitis Group (NACDG) data 1994-2014 J Am Acad Dermatol. 2018 Apr 14. . View in PubMed

Contact Dermatitis Associated With Skin Cleansers: Retrospective Analysis of North American Contact Dermatitis Group Data 2000-2014 Dermatitis. 2018 Jan/Feb; 29(1):32-42. . View in PubMed

Contact Dermatitis Associated With Skin Cleansers: Retrospective Analysis of North American Contact Dermatitis Group Data 2000-2014 Dermatitis. 2017 Dec 18. . View in PubMed

Occupational Contact Dermatitis in North American Print Machine Operators Referred for Patch Testing: Retrospective Analysis of Cross-Sectional Data From the North American Contact Dermatitis Group 1998 to 2014 Dermatitis. 2017 May/Jun; 28(3):195-203. . View in PubMed

Occupational Contact Dermatitis in North American Production Workers Referred for Patch Testing: Retrospective Analysis of Cross-Sectional Data From the North American Contact Dermatitis Group 1998 to 2014 Dermatitis. 2017 May/Jun; 28(3):183-194. . View in PubMed

Epidemic of Isothiazolinone Allergy in North America: Prevalence Data From the North American Contact Dermatitis Group, 2013-2014 Dermatitis. 2017 May/Jun; 28(3):204-209. . View in PubMed

Occupational Contact Dermatitis in Mechanics and Repairers Referred for Patch Testing: Retrospective Analysis From the North American Contact Dermatitis Group 1998-2014 Dermatitis. 2017 Jan/Feb; 28(1):47-57. . View in PubMed

Patch Test Reactions to Corticosteroids: Retrospective Analysis From the North American Contact Dermatitis Group 2007-2014 Dermatitis. 2017 Jan/Feb; 28(1):58-63. . View in PubMed

North American Contact Dermatitis Group Patch Test Results 2013-2014 Dermatitis. 2017 Jan/Feb; 28(1):33-46. . View in PubMed

Bilateral symmetric onycholysis of distal fingernails Cutis. 2017 Jan; 99(1):E8-E11. . View in PubMed

Direct-to-consumer pharmaceutical advertising Cutis. 2016 Jan; 97(1):10-1. . View in PubMed

Cutaneous Delayed-Type Hypersensitivity to Surfactants Dermatitis. 2015 Nov-Dec; 26(6):268-70. . View in PubMed

Patient compliance with photoprotection Cutis. 2015 Jul; 96(1):13-4. . View in PubMed

North American contact dermatitis group patch test results: 2011-2012 Dermatitis. 2015 Jan-Feb; 26(1):49-59. . View in PubMed

50 years of helping dermatologists improve patient care Cutis. 2015 Jan; 95(1):7-8. . View in PubMed

Patch testing in children from 2005 to 2012: results from the North American contact dermatitis group Dermatitis. 2014 Nov-Dec; 25(6):345-55. . View in PubMed

Body piercing and metal allergic contact sensitivity: North American contact dermatitis group data from 2007 to 2010 Dermatitis. 2014 Sep-Oct; 25(5):255-64. . View in PubMed

Concomitant patch test reactions to mercapto mix and mercaptobenzothiazole: retrospective analysis from the North American Contact Dermatitis Group, 1994-2008 Dermatitis. 2013 Nov-Dec; 24(6):321-7. . View in PubMed

Patch test reactions associated with sunscreen products and the importance of testing to an expanded series: retrospective analysis of North American Contact Dermatitis Group data, 2001 to 2010 Dermatitis. 2013 Jul-Aug; 24(4):176-82. . View in PubMed

North American Contact Dermatitis Group patch test results: 2009 to 2010 Dermatitis. 2013 Mar-Apr; 24(2):50-9. . View in PubMed

North American Contact Dermatitis Group patch test results for 2007-2008 Dermatitis. 2013 Jan-Feb; 24(1):10-21. . View in PubMed

Occupationally related contact dermatitis in North American food service workers referred for patch testing, 1994 to 2010 Dermatitis. 2013 Jan-Feb; 24(1):22-8. . View in PubMed

Occupational contact dermatitis in hairdressers/cosmetologists: retrospective analysis of north american contact dermatitis group data, 1994 to 2010 Dermatitis. 2012 Nov-Dec; 23(6):258-68. . View in PubMed

Effects of immunomodulatory agents on patch testing: expert opinion 2012 Dermatitis. 2012 Nov-Dec; 23(6):301-3. . View in PubMed

A survey examination of patients with hydroa vacciniforme Cutis. 2011 Nov; 88(5):245-53. . View in PubMed

Finally, the final rule on OTC sunscreen drug products Cutis. 2011 Oct; 88(4):163. . View in PubMed

Medical phototherapy in childhood skin diseases Minerva Pediatr. 2011 Aug; 63(4):327-33. . View in PubMed

Dermatologic manifestations of musicians: a case report and review of skin conditions in musicians Cutis. 2011 Mar; 87(3):117-21. . View in PubMed

Facial hyperpigmentation caused by diltiazem hydrochloride Cutis. 2010 Aug; 86(2):82-4. . View in PubMed

Patch-test results of the North American Contact Dermatitis Group 2005-2006 Dermatitis. 2009 May-Jun; 20(3):149-60. . View in PubMed

A new ecamsule-containing SPF 40 sunscreen cream for the prevention of polymorphous light eruption: a double-blind, randomized, controlled study in maximized outdoor conditions Cutis. 2009 Feb; 83(2):95-103. . View in PubMed

Allergic patch test reactions associated with cosmetics: retrospective analysis of cross-sectional data from the North American Contact Dermatitis Group, 2001-2004 J Am Acad Dermatol. 2009 Jan; 60(1):23-38. . View in PubMed

Contact allergy in children referred for patch testing: North American Contact Dermatitis Group data, 2001-2004 Arch Dermatol. 2008 Oct; 144(10):1329-36. . View in PubMed

Contact dermatitis associated with food: retrospective cross-sectional analysis of North American Contact Dermatitis Group data, 2001-2004 Dermatitis. 2008 Sep-Oct; 19(5):252-60. . View in PubMed

Occupation-related contact dermatitis in North American health care workers referred for patch testing: cross-sectional data, 1998 to 2004 Dermatitis. 2008 Sep-Oct; 19(5):261-74. . View in PubMed

Patch-testing North American lip dermatitis patients: data from the North American Contact Dermatitis Group, 2001 to 2004 Dermatitis. 2008 Jul-Aug; 19(4):202-8. . View in PubMed

Anogenital dermatitis in patients referred for patch testing: retrospective analysis of cross-sectional data from the North American Contact Dermatitis Group, 1994-2004 Arch Dermatol. 2008 Jun; 144(6):749-55. . View in PubMed

North American Contact Dermatitis Group patch-test results, 2003-2004 study period Dermatitis. 2008 May-Jun; 19(3):129-36. . View in PubMed

Patch-test reactions to topical anesthetics: retrospective analysis of cross-sectional data, 2001 to 2004 Dermatitis. 2008 Mar-Apr; 19(2):81-5. . View in PubMed

Detection of nickel sensitivity has increased in North American patch-test patients Dermatitis. 2008 Jan-Feb; 19(1):16-9. . View in PubMed

Contact dermatitis of the hands: cross-sectional analyses of North American Contact Dermatitis Group Data, 1994-2004 J Am Acad Dermatol. 2007 Aug; 57(2):301-14. . View in PubMed

Common contact allergens associated with eyelid dermatitis: data from the North American Contact Dermatitis Group 2003-2004 study period Dermatitis. 2007 Jun; 18(2):78-81. . View in PubMed

p-Phenylenediamine Dermatitis. 2006 Jun; 17(2):53-5. . View in PubMed

A psychocutaneous approach to sunbathing behavior Arch Dermatol. 2006 Feb; 142(2):245; author reply 245-6. . View in PubMed

Cutaneous disease and religious practice: case of allergic contact dermatitis to tefillin and review of the literature Int J Dermatol. 2004 Dec; 43(12):886-8. . View in PubMed

North American Contact Dermatitis Group patch-test results, 2001-2002 study period Dermatitis. 2004 Dec; 15(4):176-83. . View in PubMed

Allergy to cocamidopropyl betaine and amidoamine in North America Dermatitis. 2004 Mar; 15(1):5-6. . View in PubMed

A review of studies that have utilized different combinations of psoralen and ultraviolet B phototherapy and ultraviolet A phototherapy Dermatol Online J. 2003 Dec; 9(5):7. . View in PubMed

North American Contact Dermatitis Group patch-test results, 1998 to 2000 Am J Contact Dermat. 2003 Jun; 14(2):59-62. . View in PubMed

Glabellar gala Cutis. 2002 Jul; 70(1):15. . View in PubMed

Patch testing discordance alert: false-negative findings with rubber additives and fragrances J Am Acad Dermatol. 2001 Aug; 45(2):313-4. . View in PubMed

A preliminary report of the occupation of patients evaluated in patch test clinics Am J Contact Dermat. 2001 Jun; 12(2):72-6. . View in PubMed

Gold allergy in North America Am J Contact Dermat. 2001 Mar; 12(1):3-5. . View in PubMed

Original and practical Cutis. 2001 Mar; 67(3):191. . View in PubMed

American Academy of Dermatology Consensus Conference on UVA protection of sunscreens: summary and recommendationsWashington, DC, Feb 4, 2000. J Am Acad Dermatol. 2001 Mar; 44(3):505-8. . View in PubMed

North American Contact Dermatitis Group patch-test results, 1996-1998 Arch Dermatol. 2000 Feb; 136(2):272-3. . View in PubMed

Haplotype analysis of families with erythropoietic protoporphyria and novel mutations of the ferrochelatase gene J Invest Dermatol. 1999 Jul; 113(1):87-92. . View in PubMed

North American Contact Dermatitis Group patch test results for the detection of delayed-type hypersensitivity to topical allergens J Am Acad Dermatol. 1998 Jun; 38(6 Pt 1):911-8. . View in PubMed

Inhibition of ultraviolet B (UVB)-induced c-fos and c-jun expression in vivo by a tyrosine kinase inhibitor genistein Carcinogenesis. 1998 Apr; 19(4):649-54. . View in PubMed

Allergic and immunologic skin disorders JAMA. 1997 Dec 10; 278(22):1914-23. . View in PubMed

Arachidonic acid release: an in vitro alternative for dermal irritancy testing Food Chem Toxicol. 1996 Feb; 34(2):167-76. . View in PubMed

Activated ras genes occur in human actinic keratoses, premalignant precursors to squamous cell carcinomas Arch Dermatol. 1995 Jul; 131(7):796-800. . View in PubMed

Concomitant positive patch test results with standard screening tray in North America 1985-1989 Contact Dermatitis. 1995 May; 32(5):289-92. . View in PubMed

Effect of benzoyl peroxide on protein kinase C in cultured human epidermal keratinocytes Skin Pharmacol. 1995; 8(3):130-8. . View in PubMed

Clinical manifestations of photosensitivity in patients with human immunodeficiency virus infection Arch Dermatol. 1994 May; 130(5):630-3. . View in PubMed

Long-wave ultraviolet radiation induces protein kinase C in normal human keratinocytes Photochem Photobiol. 1994 Jan; 59(1):53-7. . View in PubMed

Photoallergic contact dermatitisResults of photopatch testing in New York, 1985 to 1990. Arch Dermatol. 1992 Nov; 128(11):1513-8. . View in PubMed

Celery phytophotodermatitis in a chef Arch Dermatol. 1991 Jun; 127(6):912-3. . View in PubMed

Human immunodeficiency virus-associated granuloma annulare Int J STD AIDS. 1991 May-Jun; 2(3):168-71. . View in PubMed

Longwave ultraviolet radiation and promotion of skin cancer Cancer Cells. 1991 Jan; 3(1):8-12. . View in PubMed

Long-wave ultraviolet light induces phospholipase activation in cultured human epidermal keratinocytes J Invest Dermatol. 1990 Aug; 95(2):158-63. . View in PubMed

Allergic contact dermatitis to nickel in children with atopic dermatitis Ann Allergy. 1990 Jul; 65(1):73-9. . View in PubMed

Bullous photosensitivity to naproxen: "pseudoporphyria" Arthritis Rheum. 1990 Jun; 33(6):903-8. . View in PubMed

Generalized granuloma annulare located on sun-exposed areas in a human immunodeficiency virus-seropositive man with ultraviolet B photosensitivity Arch Dermatol. 1990 Jun; 126(6):830-1. . View in PubMed

Induction of protein kinase C activity by ultraviolet radiation Carcinogenesis. 1990 Feb; 11(2):229-34. . View in PubMed

Detection of DNA adducts in skin biopsies of coal tar-treated psoriasis patients: immunofluorescence and 32P postlabeling Skin Pharmacol. 1990; 3(3):171-9. . View in PubMed

Allergic contact dermatitis resulting from sensitivity to citrus peel, geraniol, and citral J Am Acad Dermatol. 1989 Aug; 21(2 Pt 2):395-7. . View in PubMed

Long wave ultraviolet radiation stimulates arachidonic acid release and cyclooxygenase activity in mammalian cells in culture Photochem Photobiol. 1989 Apr; 49(4):423-30. . View in PubMed

Allergic contact dermatitis from para-chloro-meta-xylenol in Lurosep soap Contact Dermatitis. 1989 Jan; 20(1):67-8. . View in PubMed

8-Methoxypsoralen-DNA adducts in patients treated with 8-methoxypsoralen and ultraviolet A light J Invest Dermatol. 1989 Jan; 92(1):59-63. . View in PubMed

Longwave ultraviolet radiation (UVA)-induced alteration of epidermal DNA synthesis Photochem Photobiol. 1988 Mar; 47(3):383-9. . View in PubMed

Consort contact dermatitis due to oak moss Arch Dermatol. 1988 Feb; 124(2):261-2. . View in PubMed

Detection and quantification of 8-methoxypsoralen-DNA adducts IARC Sci Publ. 1988; (89):333-40. . View in PubMed

An animal model for evaluation of topical photoprotection against ultraviolet A (320-380 nm) radiation J Invest Dermatol. 1987 Oct; 89(4):410-4. . View in PubMed

Allergic contact dermatitis from bacitracin J Am Acad Dermatol. 1987 Oct; 17(4):592-4. . View in PubMed

Immunological detection and visualization of 8-methoxypsoralen-DNA photoadducts Cancer Res. 1987 May 01; 47(9):2451-5. . View in PubMed

Benoxaprofen photosensitization of phospholipase activation in mammalian cells in culture Toxicol Lett. 1986 Sep; 32(3):215-20. . View in PubMed

Comparative study of erythema response to UVA radiation in guinea pigs and humans Photochem Photobiol. 1985 Oct; 42(4):399-403. . View in PubMed

Mastocytosis and the mast cell J Am Acad Dermatol. 1982 Dec; 7(6):709-22. . View in PubMed

Neonatal pemphigus vulgaris J Am Acad Dermatol. 1982 May; 6(5):929-32. . View in PubMed

6-Methylcoumarin photocontact dermatitis J Am Acad Dermatol. 1980 Feb; 2(2):124-7. . View in PubMed

Hydroa vacciniforme Arch Dermatol. 1978 Aug; 114(8):1193-6. . View in PubMed

Erythropoietic protoporphyria10 years experience. Am J Med. 1976 Jan; 60(1):8-22. . View in PubMed

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