Research

What We Do

Psoriasis Research

Ongoing Studies

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Past Studies

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Hidradenitis suppurativa (HS) Research

Ongoing Studies

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Past Studies

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Atopic dermatitis Research

Ongoing Studies

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Past Studies

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Keloid Research

Ongoing Studies

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Past Studies

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Recent Publications:

  • Latham L, MacDonald A, Kimball AB, Langley RG. Teaching empathy to undergraduate medical students using a temporary tattoo simulating psoriasis.. Journal of the American Academy of Dermatology. 2012;67(1):93-9. doi:10.1016/j.jaad.2011.07.023

    BACKGROUND: Psoriasis has a profound negative effect on quality of life that is often underappreciated by health care professionals and the public.

    OBJECTIVE: We sought to assess the perception of the burden of psoriasis relative to other medical conditions in first-year medical students, and to determine if wearing a temporary tattoo simulating psoriasis during a teaching exercise would change their perceptions.

    METHODS: Participants completed a questionnaire assessing their perception of the impact of psoriasis and other common medical conditions (visual analog scale). Participants then wore a temporary tattoo of a psoriatic lesion for 24 hours and completed the same questionnaire after this exercise.

    RESULTS: Of 91 students approached, 61 completed the study. At baseline, psoriasis (mean = 23.6) and eczema (mean = 23.3) were perceived as having the lowest physical burden of diseases queried (P < .0001), whereas the mental impact of psoriasis was scored comparably with arthritis, heart disease, and diabetes (mean = 45.1-56.7), but lower than cancer (mean = 82.2) and depression (mean = 93.8). After the exercise, the perception of the impact of eczema (physical: mean = 37.3, P < .0001; mental: mean = 66.6, P = .0005) and psoriasis (physical: mean = 37.8, P = .0014; mental: mean = 68.6, P = .0293) was significantly increased.

    LIMITATIONS: The exercise did not simulate the chronic nature of psoriasis or the scaling and pruritic characteristics of psoriatic lesions. The survey instrument used to assess empathy has not been previously validated and statistical analysis was limited by small sample size and the absence of a control group.

    CONCLUSIONS: Temporary tattoos are a novel and effective method of teaching medical students about the psychological burden of psoriasis.

  • Kimball AB, Szapary P, Mrowietz U, et al. Underdiagnosis and undertreatment of cardiovascular risk factors in patients with moderate to severe psoriasis.. Journal of the American Academy of Dermatology. 2012;67(1):76-85. doi:10.1016/j.jaad.2011.06.035

    BACKGROUND: Patients with psoriasis are known to have an increased number of cardiovascular (CV) risk factors and be at increased risk for CV events.

    OBJECTIVES: We sought to describe and characterize the underdiagnosis and undertreatment of CV risk factors in patients with moderate to severe psoriasis.

    METHODS: Medical histories including diabetes, hypertension, and hyperlipidemia were obtained from 2899 patients in 3 phase III ustekinumab trials, a therapeutic anti-interleukin (IL)-12/IL-23p40 monoclonal antibody. Reported history was compared with measured fasting glucose, fasting lipids, and blood pressure. Ten-year Framingham risk scores and the proportion of patients achieving glycemic, lipid, and blood pressure targets were evaluated.

    RESULTS: Significant risk factors existed in patients with moderate to severe psoriasis (58.6% and 28.8% of patients had ≥ 2 and ≥ 3 established CV risk factors, respectively). Based on Framingham risk score, 18.6% of patients were at high risk and 12.3% were at intermediate risk for CV events. At baseline, a small proportion of patients with diabetes (2.3%), hypertension (9.1%), or hyperlipidemia (4.9%) were previously without a diagnosis. However, 19.1%, 21.8%, and 38.6% of patients with diabetes, hypertension, or hyperlipidemia, respectively, were untreated at baseline, and the proportion at treatment goal was not ideal (hypertension 59.6% and hyperlipidemia 69.7%), especially for diabetes (36.7%).

    LIMITATIONS: Results are based on a clinical trial population and findings may not be generalizable to the general psoriasis population.

    CONCLUSIONS: In this moderate to severe psoriasis population, a high prevalence of undiagnosed and undertreated CV risk factors existed, emphasizing the importance of screening patients with psoriasis for CV risk factors.

  • Bae YSC, Van Voorhees AS, Hsu S, et al. Review of treatment options for psoriasis in pregnant or lactating women: from the Medical Board of the National Psoriasis Foundation.. Journal of the American Academy of Dermatology. 2012;67(3):459-77. doi:10.1016/j.jaad.2011.07.039

    BACKGROUND: Treating psoriasis in pregnant and lactating women presents a special challenge. For ethical reasons, prospective randomized control trials have not been conducted in this patient population although these patients do encounter new-onset psoriasis in addition to flares and may require treatment throughout their pregnancies.

    OBJECTIVE: Our aim was to arrive at consensus recommendations on treatment options for psoriasis in pregnant and lactating women.

    METHODS: The literature was reviewed regarding all psoriasis therapies in pregnant and lactating women.

    RESULTS: Topical therapies including emollients and low- to moderate-potency topical steroids are first-line therapy for patients with limited psoriasis who are pregnant or breast-feeding. The consensus was that second-line treatment for pregnant women is narrowband ultraviolet B phototherapy or broadband ultraviolet B, if narrowband ultraviolet B is not available. Lastly, tumor necrosis factor-α inhibitors including adalimumab, etanercept, and infliximab may be used with caution as may cyclosporine and systemic steroids (in second and third trimesters). Some specific strategies may be used to minimize risk and exposure.

    LIMITATIONS: There are few evidence-based studies on treating psoriasis in pregnant and lactating women.

    CONCLUSIONS: Because there will always be a question of ethical concerns placing pregnant and lactating women in prospective clinical trials, investigation of both conventional and biologic agents are unlikely to ever be performed. Some of these medications used to treat psoriasis are known abortifacients, mutagens, or teratogens and must be clearly avoided but others can be used with relative confidence in select patients with appropriate counseling of risks and benefits.

  • Frangos JE, Duncan LM, Piris A, et al. Increased diagnosis of thin superficial spreading melanomas: A 20-year study.. Journal of the American Academy of Dermatology. 2012;67(3):387-94. doi:10.1016/j.jaad.2011.10.026

    BACKGROUND: Diagnostic practice by dermatopathologists evaluating pigmented lesions may have evolved over time.

    OBJECTIVES: We sought to investigate diagnostic drift among a group of dermatopathologists asked to re-evaluate cases initially diagnosed 20 years ago.

    METHODS: Twenty nine cases of dysplastic nevi with severe atypia and 11 cases of thin radial growth-phase melanoma from 1988 through 1990 were retrieved from the pathology files of the Massachusetts General Hospital. All dermatopathologists who had rendered an original diagnosis for any of the 40 slides and the current faculty in the Massachusetts General Hospital Dermatopathology Unit were invited to evaluate the slide set in 2008 through 2009.

    RESULTS: The mean number of melanoma diagnoses by the 9 study participants was 18, an increase from the original 11 melanoma diagnoses. A majority agreed with the original diagnosis of melanoma in all 11 cases. In contrast, a majority of current raters diagnosed melanoma in 4 of the 29 cases originally reported as dysplastic nevus with severe atypia. Interrater agreement over time was excellent (kappa 0.88) and fair (kappa 0.47) for cases originally diagnosed as melanoma and severely atypical dysplastic nevus, respectively.

    LIMITATIONS: The unbalanced composition of the slide set, lack of access to clinical or demographic information, access to only one diagnostic slide, and imposed dichotomous categorization of tumors were limitations.

    CONCLUSIONS: A selected cohort of dermatopathologists demonstrated a general trend toward the reclassification of prior nonmalignant diagnoses of severely atypical dysplastic nevi as malignant but did not tend to revise prior diagnoses of cutaneous melanoma as benign.