Therapeutic application of machine learning in psoriasis: A Prisma systematic review.

Dermatology, being a predominantly visual-based diagnostic field, has found itself to be at the epitome of artificial intelligence (AI)-based advances. Machine learning (ML), a subset of AI, goes a step further by recognizing patterns from data and teaches machines to automatically learn tasks. Although artificial intelligence in dermatology is mostly developed in melanoma and skin cancer diagnosis, advances in AI and ML have gone far ahead and found its application in ulcer assessment, psoriasis, atopic dermatitis, onychomycosis, etc.

International eDelphi Study to Reach Consensus on the Methotrexate Dosing Regimen in Patients With Psoriasis.

Importance: A clear dosing regimen for methotrexate in psoriasis is lacking, and this might lead to a suboptimal treatment. Because methotrexate is affordable and globally available, a uniform dosing regimen could potentially optimize the treatment of patients with psoriasis worldwide.

Objective: To reach international consensus among psoriasis experts on a uniform dosing regimen for treatment with methotrexate in adult and pediatric patients with psoriasis and identify potential future research topics.

Antihistamines in Psoriasis.

Psoriasis is polygenic, interleukin (IL)-17 and IL-23 driven chronic relapsing inflammatory multisystem disease caused by a complex interplay of endogenous and environmental factors. The most common and distressing symptom in psoriasis is itch, adding significantly to the burden of disease. Although histamine has historically not been considered a key itch mediator in psoriasis, there is some evidence from the literature that antihistamines may be effective to reduce itch in psoriasis.

Psoriasis: Embarking a dynamic shift in the skin microbiota.

Recent interest has arisen regarding the role of microbiome and its composition in the pathogenesis of psoriasis. Numerous studies have shown that there are alterations in skin flora arrangement between normal individuals and psoriatic patients. Psoriasis exacerbation could be interconnected with epidermal or mucosal colonization with streptococci, Malassezia, Staphylococcus aureus, or Candida albicans.

Pityriasis Lichenoides Chronica in a Patient With Ankylosing Spondylitis Treated With Etanercept.

Pityriasis lichenoides is a scarce cutaneous disorder with unknown etiology. It contains a range of clinical manifestations including acute papular lesions that quickly grow into pseudo vesicles and central necrosis to small, scaling, benign-appearing papules.1,2.

Pityriasis Lichenoides Chronica in a Patient With Ankylosing Spondylitis Treated With Etanercept.

Background: Pityriasis lichenoides chronica, a papulosquamous disorder often considered a subtype of pityriasis lichenoides. It is considered a clonal T-cell disorder, which may be associated with cutaneous T-cell lymphoma that may develops in response to foreign antigens.

Case Presentation: We present a 38-year-old male patient with ankylosing spondylitis who was on treatment with etanercept.

Clinical and Molecular Effects of Interleukin-17 Pathway Blockade in Psoriasis.

The interleukin-17 (IL-17) pathway plays a crucial role in the development of psoriasis. Briefly, naive T cells differentiate into helper T (Th17) cells through interaction with activated dendritic cells in the presence of IL-23, Th17 cells produce IL-17 cytokines, and keratinocytes stimulated by IL-17 ligands lead to aberrant differentiation and proliferation that promote production of proinflammatory chemokines and further recruitment of inflammatory cells, setting up a positive feedback loop. Currently, 3 US Food and Drug Administration–approved agents to treat psoriasis affect the IL-17 pathway: brodalumab, secukinumab, and ixekizumab.

Necrobiosis Lipoidica Mimicking Cutaneous Sarcoidosis Finally Treated With an Intralesional Injection of Corticosteroid: A Case Report.

BACKGROUND: Necrobiosis lipoidica (NL) and sarcoidosis are granulomatous disorders with an unknown pathogenesis. They may coexist in the same patient, which suggests a possible overlap between these diseases among shared granulomatous inflammatory pathways. Case Presentation: This study presents the case of a non-diabetic 52-year-old woman who presented with red-yellowish border plaques on the face and upper extremities previously diagnosed as sarcoidosis.

Correction: The Impact of Diet on Psoriasis.

Due to a submission error, the article "The Impact of Diet on Psoriasis" (Cutis. 2019;104[suppl 2]:7-10) stated the incorrect academic degree for one of the authors. The byline should read: Albert G.

Systemic therapies in psoriasis: an update on newly approved and pipeline biologics and oral treatments.

Although there are numerous biologics and several oral treatments for psoriasis, a number of promising systemic therapies are on the horizon. Knowledge of these medications might help guide our treatment approach to the patient with psoriasis. This article provides an update on the most recent (as of 2019) approved therapies and medications in the pipeline for moderate to severe plaque psoriasis, with a focus on systemic agents in phase 3 clinical trials.

The impact of diet on psoriasis.

Because psoriasis is a chronic and inflammatory disease, many patients seek alternative therapies and lifestyle modifications to supplement their treatments and help relieve symptoms. Both the disease and the modifications are multifactorial, making it difficult to quantify the effectiveness of a single change. A review of the available literature reveals that most diets have mixed impacts on psoriasis, though some individual foods have seen more prominence in studies.

Treatment of Medicare Patients with Moderate-to-Severe Psoriasis who Cannot Afford Biologics or Apremilast.

Elderly patients are a group with a high frequency of psoriasis. Their disease burden has negative impacts on their quality of life. While there is a clear need to treat these patients, there are challenges in doing so.

Successful Treatment of Refractory Plaque-Type Psoriasis and Psoriatic Arthritis With Guselkumab and Adalimumab Combination Therapy: A Case Report.

Copy: A number of biologics have been approved for use in plaque-type psoriasis. They act by either blocking the action of a specific type of cell or protein in the immune system. Case presentation: Herein, we report a case of a 46-year-old woman with a 12-year history of severe plaque psoriasis and psoriatic arthritis who was treated successfully with guselkumab and adalimumab after failure of prior topical corticosteroids, cyclosporine and narrow-band ultraviolet B (NBUVB) phototherapy.

Update on the pathophysiology of psoriasis.

Psoriasis is a genetically programmed pathologic interaction among skin cells, immunocytes, and numerous biologic signaling molecules that is triggered by environmental stimuli. The immune response is a cellular one; type 1 (TH1) and type 17 (TH17) T cells are activated by IL-12 and IL-23 secreted by antigen-presenting cells (APCs) in the skin. Through various cytokines, such as tumor necrosis factor (TNF) α, these cells cause a chronic inflammatory state and alter epidermal hyperproliferation, differentiation, apoptosis, and neoangiogenesis that produce the cutaneous findings seen in this disease.