Promoting a Healthy Skin Barrier Using Skin Care in People With Mature Skin Xerosis.

INTRODUCTION: Most people are living into their sixties and beyond. Fundamental changes in chronologically aged skin have significant and widespread dermatological implications. This review discusses aging-associated alterations in epidermal function leading to xerosis and related pruritus and the benefits of maintaining or restoring a healthy skin barrier using skincare, specifically ceramide-containing skincare.   Methods: A panel of 7 dermatologists convened for a meeting to review aspects of xerosis in mature skin, skin barrier changes, and nuances in the treatment and maintenance of mature skin using gentle cleansers and moisturizers. From the selected literature, 13 statements were drafted. During the meeting, the draft statements underwent the panel's evaluation at a workshop, followed by a plenary discussion adopting 5 statements using evidence from the literature coupled with the panel's opinions and experiences. RESULTS: The exact etiology of xerosis is not entirely understood and likely depends on several genetic and environmental mechanisms. Aging-associated changes in epidermal function include a marked reduction in total lipids in the stratum corneum relative to young skin due to reduced epidermal lipid synthesis. In aging skin, xerosis is significantly associated with pruritus. Studies have shown that lipid-containing skin care, such as a gentle ceramide-containing cleanser and moisturizer, promotes a healthy barrier reducing xerosis and pruritus in individuals with mature skin.  Conclusions: The development of xerosis in mature skin involves several genetic and environmental mechanisms. Skincare, including gentle cleansers and moisturizers, has reduced xerosis and pruritus in mature skin individuals.     J Drugs Dermatol. 2024;23(1):1253-1259.     doi:10.36849/JDD.7560.

Consensus Statements on the Use of Novel Formulations of Isotretinoin: A Modified Delphi Process.

Oral isotretinoin remains a mainstay of treatment for severe, recalcitrant nodular acne. Novel formulations of isotretinoin have been developed over the past decade, including lidose isotretinoin and micronized isotretinoin. It is important to understand the differences between isotretinoin formulations to help guide clinical decision-making and selection of isotretinoin therapy. This study aims to provide evidence-based consensus statements regarding the use of novel formulations of isotretinoin for the treatment of moderate-to-severe acne. The Expert Consensus Group consisted of dermatologists with expertise in the treatment of acne. Voting members met in person to conduct a modified Delphi process; a maximum of 2 rounds of voting were conducted for each consensus statement. A total of 5 statements were generated regarding the use of novel formulations of isotretinoin, addressing the efficacy, tolerability, and side effects of novel isotretinoin formulations. All 5 statements achieved agreement with high consensus. The Expert Consensus Group agrees that individualized selection of isotretinoin therapy is important to maximize efficacy and minimize side effects. Compared to generic isotretinoin, micronized isotretinoin may require lower doses to achieve sufficient plasma concentrations. With the increased bioavailability of micronized formulation, there is no need to calculate cumulative dose; instead, the general recommendation with micronized isotretinoin is to treat for at least 5 months, or longer if needed to achieve clearance. Micronized isotretinoin can be taken in the fed or fasted state and has an acceptable safety profile. J Drugs Dermatol. 2024;23(6):429-432.     doi:10.36849/JDD.7971.

Sixty Years of Benzoyl Peroxide Use in Dermatology.

BACKGROUND: Benzoyl peroxide (BPO) has been used extensively in industry and health care for more than a century and has been approved for the treatment of acne for over 60 years. Recently, BPO received a second approved indication by the US Food and Drug Administration (FDA) for the treatment of rosacea. Topical BPO use has historically been limited by tolerability, photosensitivity, oxidation, and, uncommonly, contact allergy. Research has led to enhanced efficacy and tolerability, as well as the combination of BPO with other topical medications. These advances have allowed extended use of BPO in additional dermatologic conditions that may not have been feasible in the past. Additionally, the role of BPO in preventing antibiotic resistance cannot be underestimated. Here, we discuss the historical limitations of BPO and recent advances developed to overcome these limitations. We also describe newly approved BPO medications and their role in aiding antibiotic stewardship. J Drugs Dermatol. 2023;22(1):54-59. doi:10.36849/JDD.7150.

Role of oral Polypodium leucotomos extract in dermatologic diseases: a review of the literature.

Polypodium leucotomos extract (PLE), derived from the tropical fern of Polypodiaceae family, has properties ranging from immunomodulatory and antioxidative to photoprotective. It is these multiple mechanisms of action, in combination with a favorable side effect profile, which makes PLE a promising adjunctive treatment for several dermatologic disorders. Studies are summarized on the use and potential applications of PLE in the treatment or management of photodermatoses, vitiligo, melasma, psoriasis, atopic dermatitis, and more recently, in minimizing infections in high-performance athletes. More data, however, with larger sample sizes are needed to confirm these benefits.

A Review of the Diagnostic and Therapeutic Gaps in Rosacea Management: Consensus Opinion.

Rosacea is a common, chronic inflammatory disease characterized by both fluctuating and fixed heterogeneous signs such as facial erythema, papules/pustules, telangiectasia, acute vasodilation (flushing), and phymatous changes, and symptoms such as cutaneous stinging and burning. The shift to a phenotype-based approach to rosacea management has improved the consistency of recommendations across recent published guidelines. Consistent and thorough guidance for the classification, diagnosis, and management of the disease is difficult, as the mechanisms underlying the development of rosacea are still not completely understood nor universally accepted. Here, we provide a critical review of current published guidance, and gaps in the knowledge and management of rosacea. We present the recently approved microencapsulated benzoyl peroxide as an effective topical treatment option for papulopustular rosacea. Benzoyl peroxide (BPO) has been used in acne management for many years; however, many clinicians perceive treatment of rosacea with any BPO formulation to be counterintuitive because of concerns of potential skin irritation, while the lack of an accepted mechanism of action on rosacea pathophysiology means that others may be hesitant to use BPO as a treatment. Minocycline foam 1.5% is also an option for the treatment of inflammatory lesions in rosacea, with a decreased risk of systemic adverse events compared with oral minocycline.

Atopic dermatitis, and the role for a ceramide-dominant, physiologic lipid-based barrier repair emulsion.

Over the last half century, and especially over the last 15 years, understanding of the structure and function of the stratum corneum has evolved tremendously. Once conceptualized as an inactive film formed by lifeless, disintegrating keratinocytes, the stratum corneum is now recognized as a viable, functional structure that plays an important role in maintaining skin health and possibly mediating cutaneous diseases. Researchers and clinicians have also come to realize that the barrier functions not only to prevent the entry of exogenous factors, such as irritants or allergens, but that it also can mediate disease. We had already realized that dysfunction of the barrier may itself directly contribute to the pathogenesis of skin diseases, notably atopic dermatitis. More specifically, evidence shows that epidermal barrier dysfunction is likely to be a precursor of cutaneous inflammation.

A review of delivery systems in cosmetics.

Physicians and patients have come to expect that our prescription topicals not only be efficacious but also minimally irritating and cosmetically pleasing. Much research and development effort are being spent to identify new vehicles to achieve these goals. Consumers are also demanding nonprescription products that give them noticeable results. The cosmeceutical industry, which accounts for multibillion dollars a year in sells, is on the forefront of the research. We reviewed the literature to identify and discuss some of those delivery systems used in consumer health products.

Intraoral metal contact allergy as a possible risk factor for oral squamous cell carcinoma.

OBJECTIVES: Intraoral exposure to dental restorations can cause contact allergy that may induce carcinogenesis. We investigated the relationship of intraoral metal contact allergy to epithelial carcinogenesis. METHODS: The prevalence of positive patch test reactions to dental restoration metals in 65 prospectively enrolled patients with newly or previously diagnosed oral squamous cell carcinoma (SCC) was compared to that in 48 control patients. The relative risk of oral SCC was estimated by calculating odds ratios for exposure to dental metals resulting in allergy. RESULTS: Of the 65 patients with oral SCC, 34% were allergic to at least 1 adjacent metal. They were 1.57 times as likely as control patients to have metal contact allergy (odds ratio, 1.57; 95% confidence interval, 0.65 to 3.80) and more than 3 times as likely to react to mercury (odds ratio, 3.20; 95% confidence interval, 0.42 to 33.20). CONCLUSIONS: Patients with oral SCC who have metal dental restorations should undergo patch testing and possible removal of the restorations if their reactions are positive.

Prevalence and Demographics of Truncal Involvement Among Acne Patients: Survey Data and a Review of the Literature.

Background: Truncal acne is frequently underdiagnosed despite affecting around half of those with facial acne. The objective was to provide an overview of the literature on the incidence of truncal acne according to age, gender, and acne severity. Methods: A narrative review of data from recent large surveys and a literature search in PubMed on the incidence of truncal acne across subgroups of age, gender, and acne severity. Results: The prevalence of truncal acne alone was low, ranging from <1% to 14%, but approximately 30 to 60 percent of individuals with facial acne also had truncal acne depending on the population. In an online survey in the United States of 2,000 respondents aged between 14 -29 years with self-reported active facial and/or truncal acne, the incidence of truncal acne was lower in the 14-20 years subgroup than in the 21-29 years subgroup (49% vs 54%). The incidence of truncal acne was similar in both males and females, while 46 percent of respondents with self-declared clear and mild acne indicated having truncal involvement compared to 60 percent of those with moderate or severe acne. Limitations: Online surveys have inherent limitations, such as self-reporting and potential confounders. Conclusion: Data suggests that patients with both facial and truncal involvement have earlier onset of acne and more severe acne. Additional adverse psychological impact may arise from having the impression that the disease is spreading and becoming more severe. Raising awareness of truncal acne prevalence and demographics could improve its clinical management to reduce the negative psychological impact.

Cutaneous Adverse Events in the Randomized, Double-Blind, Active-Comparator DECIDE Study of Daclizumab High-Yield Process Versus Intramuscular Interferon Beta-1a in Relapsing-Remitting Multiple Sclerosis.

INTRODUCTION: Cutaneous adverse events (AEs) have been observed in clinical studies of daclizumab high-yield process (HYP) in relapsing-remitting multiple sclerosis (RRMS). Here, we report cutaneous AEs observed in the randomized, double-blind, active-comparator DECIDE study (ClinicalTrials.gov identifier, NCT01064401). METHODS: DECIDE was a randomized, double-blind, active-controlled phase 3 study of daclizumab HYP 150 mg subcutaneous every 4 weeks versus interferon (IFN) beta-1a 30 mcg intramuscular (IM) once weekly in RRMS. Treatment-emergent AEs were classified and recorded by investigators. Investigators also assessed the severity of each AE, and whether it met the criteria for a serious AE. Cutaneous AEs were defined as AEs coded to the Medical Dictionary for Regulatory Activities System Organ Class of skin and subcutaneous tissue disorders. The incidence, severity, onset, resolution, and management of AEs were analyzed by treatment group. RESULTS: Cutaneous AEs were reported in 37% of daclizumab HYP-treated patients and 19% of IFN beta-1a-treated patients. The most common investigator-reported cutaneous AEs with daclizumab HYP were rash (7%) and eczema (4%). Most patients with cutaneous AEs remained on treatment (daclizumab HYP, 81%; IM IFN beta-1a, 90%) and had events that were mild or moderate (94% and 98%) and subsequently resolved (78% and 82%). Most patients with cutaneous AEs did not require treatment with corticosteroids or were treated with topical corticosteroids (daclizumab HYP, 73%; IM IFN beta-1a, 81%). Serious cutaneous AEs were reported in 14 (2%) daclizumab HYP patients and one (<1%) IM IFN beta-1a patient. CONCLUSION: There was an increased risk of cutaneous AEs with daclizumab HYP. While physicians should be aware of the potential for serious cutaneous AEs, the typical cutaneous AEs were mild-to-moderate in severity, manageable, and resolved over time. FUNDING: Biogen and AbbVie Biotherapeutics Inc. TRIAL REGISTRATION: ClinicalTrials.gov identifier, NCT01064401.

Oral metal contact allergy: a pilot study on the cause of oral squamous cell carcinoma.

BACKGROUND: Intraoral metal contact allergy may result in mucositis that mimics lichen planus and the pathogenesis of squamous cell carcinoma. METHODS: Clinical records of all patients examined in the departments of dermatology and otorhinolaryngology at a tertiary-care academic medical center between June 1994 and June 2000 who had a diagnosis of intraoral squamous cell carcinoma adjacent to a metal dental restoration and who were patch tested with our metal series were reviewed retrospectively. Eleven patients met the inclusion criteria. RESULTS: Ten patients (91%) had positive patch tests to metals. In eight (73%), the oral cancer was adjacent to a dental restoration containing a metal to which the patient was allergic. Prevalence of gold, mercury, silver, and copper allergy among these patients was substantially higher than that reported in the available worldwide patch-test clinic population. CONCLUSION: Contact allergy to metal dental restorations may be a risk factor for development of intraoral squamous cell carcinoma.