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Dev R Sahni, Steven R Feldman, Sarah L Taylor
Rosacea is a chronic and recurrent disease with a variety of cutaneous manifestations. The disorder is a centrofacial inflammatory dermatosis with significant financial, physical and psychological impacts. There are a number of topical, oral and systemic treatments available. Yet, treatment for rosacea remains difficult. The multifactorial nature of the disease combined with an incomplete understanding of the pathophysiology is challenging for providers and patients. Areas covered: This article provides an in-depth review of rosacea treatment and emerging use of ivermectin 1% cream for papulopustular rosacea based on multiple clinical trials...
March 16, 2018: Expert Opinion on Pharmacotherapy
R Asero, M Piantanida, V Pravettoni
Background. Follow-up data about the onset of novel food allergies in patients allergic to lipid transfer protein (LTP) are missing. We investigated the occurrence of novel allergies over time in LTP hypersensitive patients. Methods. Sixty-seven LTP-allergic patients recommended to avoid foods responsible for systemic reactions and encouraged to eat other sensitizing foods avoiding the association with known co-factors, were re-evaluated after ≥ 1 year to assess the occurrence of allergy to novel foods. IgE to rPru p 3, rBet v 1, and r Phl p 12 were measured...
February 16, 2018: European Annals of Allergy and Clinical Immunology
Janet DuBois, Jeffrey S Dover, Terry M Jones, Robert A Weiss, David R Berk, Gurpreet Ahluwalia
BACKGROUND: Rosacea is a chronic dermatologic condition with limited treatment options. OBJECTIVE: This phase 2 study evaluated the optimal oxymetazoline dosing regimen in patients with moderate to severe persistent facial erythema of rosacea. METHODS: Patients were randomly assigned to oxymetazoline cream, 0.5%, 1.0%, or 1.5%, or vehicle, administered once daily (QD) or twice daily (BID) for 28 consecutive days. The primary efficacy endpoint was the proportion of patients with ≥2-grade improvement from baseline on the Clinician Erythema Assessment (CEA) and the Subject Self-Assessment of erythema (SSA-1) on day 28...
March 1, 2018: Journal of Drugs in Dermatology: JDD
Leslie Baumann, David J Goldberg, Linda Stein Gold, Emil A Tanghetti, Edward Lain, Joely Kaufman, Emily Weng, David R Berk, Gurpreet Ahluwalia
Rosacea is a chronic dermatologic condition with limited treatment options, particularly for persistent erythema. This pivotal phase 3 study evaluated oxymetazoline, an a1A-adrenoceptor agonist, for the treatment of moderate to severe persistent erythema of rosacea. Eligible patients were randomly assigned 1:1 to receive oxymetazoline cream 1.0% or vehicle applied topically to the face once daily for 29 days. The primary efficacy outcome was ≥2-grade improvement from baseline on both Clinician Erythema Assessment (CEA) and Subject Self-Assessment for rosacea facial redness (SSA) (composite success) at 3, 6, 9, and 12 hours postdose on day 29...
March 1, 2018: Journal of Drugs in Dermatology: JDD
Dilay Ozek, Özlem Evren Kemer, Ferda Artüz
PURPOSE: To evaluate the results of tear functions in acne rosacea. METHODS: This prospective study includes 64 eyes of 32 acne rosacea patients without blepharitis and meibomian gland dysfunction and 90 eyes of 45 patients as control group. Tear functions of all were evaluated with ocular surface disease index (OSDI) questionnaire, and measurements of tear osmolarity were performed by using TearLab, Schirmer I tests without anesthesia and fluorescein tear break-up time (TBUT)...
March 13, 2018: Ocular Immunology and Inflammation
N Lacey, A Russell-Hallinan, C C Zouboulis, F C Powell
Rosacea is a common facial skin disorder affecting middle-aged adults. Its aetiology is unknown and pathogenesis uncertain. Activation of the host innate immune response has been identified as important. The Demodex mite population in the skin of these patients is significantly higher than in subjects with normal skin suggesting they may be of etiological importance in this disorder. Little is known of the role of these mites in human skin and their potential to interact with the host immune system has not been elucidated...
March 12, 2018: British Journal of Dermatology
Tewodros T Wakie, Wee L Yee, Lisa G Neven
The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is a highly destructive pest of cherries (Prunus spp.) (Rosaceae) in Europe and Asia. In 2016, R. cerasi was detected in Ontario, Canada, and in 2017 in New York State, USA, the first records of this pest in North America. The initial detections in Canada caused concern for the major cherry-growing states of Michigan, Washington, Oregon, and California in the United States. Establishment of R. cerasi in the United States could restrict cherry exports to other markets and increase costs needed for fly control, but it is unknown if R...
March 8, 2018: Journal of Economic Entomology
Yuki Henselek, Elisabeth J Eilers, Claire Kremen, Stephen D Hendrix, Alexandra-Maria Klein
Almond (Prunus dulcis (Mill.) D. A. Webb; Rosales: Rosaceae) is a cash crop with an estimated global value of over seven billion U.S. dollars annually and commercial varieties are highly dependent on insect pollination. Therefore, the understanding of basic pollination requirements of the main varieties including pollination efficiency of honey bees (Apis mellifera, Linnaeus, Hymenoptera: Apidae) and wild pollinators is essential for almond production. We first conducted two lab experiments to examine the threshold number of pollen grains needed for successful pollination and to determine if varietal identity or diversity promotes fruit set and weight...
March 8, 2018: Journal of Economic Entomology
B Diczig, I Németh, Gy Pónyai, M Sárdy
Rosacea is a chronic skin disease characterized by inflammatory processes affecting mainly the center of the face. The pathophysiology is complex, environmental factors seem to play an important role in the exacerbation and worsening of the lesions. The barrier-dysfunction theory in atopic dermatitis has been well described in the literature. This article is protected by copyright. All rights reserved.
March 10, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Qiuju Chen, Dong Meng, Zhaoyu Gu, Wei Li, Hui Yuan, Xuwei Duan, Qing Yang, Yang Li, Tianzhong Li
It has been proved that the gametophytic self-incompatibility (GSI), mainly exists in Rosaceae and Solanaceae, is controlled by S genes, which are two tightly linked genes located at highly polymorphic S -locus: the S-RNase for pistil specificity and the F-box gene ( SFB/SLF ) for pollen specificity, respectively. However, the roles of those genes in SI of peach are still a subject of extensive debate. In our study, we selected 37 representative varieties according to the evolution route of peach and identified their S genotypes...
2018: Frontiers in Plant Science
James Q Del Rosso
Until recently, the potential modes of action of topical ivermectin in rosacea have been speculated but not studied. Short-term studies (12 week), long-term studies (up to 52 weeks), and case report series have now been completed, and topical ivermectin (IVM), formulated as a 1% cream that is applied once daily, has been shown to be effective, well-tolerated, and safe for the treatment of rosacea. This article reviews outcomes from studies that support dual modes of action, including both anti-inflammatory and anti-parasitic effects...
September 2017: Journal of Clinical and Aesthetic Dermatology
Angel Fernandez I Marti, Christopher A Saski, George A Manganaris, Ksenija Gasic, Carlos H Crisosto
It has recently been described that the Japanese plum "Santa Rosa" bud sport series contains variations in ripening pattern: climacteric, suppressed-climacteric and non-climacteric types. This provides an interesting model to study the role of ethylene and other key mechanisms governing fruit ripening, softening and senescence. The aim of the current study was to investigate such differences at the genomic level, using this series of plum bud sports, with special reference to genes involved in ethylene biosynthesis, signal transduction, and sugar metabolism...
2018: Frontiers in Plant Science
Alexis Lara Rivero, Margot Whitfeld
No abstract text is available yet for this article.
February 2018: Australian Prescriber
Toshiya Takahashi, Nikhil Nitin Kulkarni, Ernest Y Lee, Ling-Juan Zhang, Gerard C L Wong, Richard L Gallo
Under homeostatic conditions the release of self-RNA from dying cells does not promote inflammation. However, following injury or inflammatory skin diseases such as psoriasis and rosacea, expression of the cathelicidin antimicrobial peptide LL37 breaks tolerance to self-nucleic acids and triggers inflammation. Here we report that LL37 enables keratinocytes and macrophages to recognize self-non-coding U1 RNA by facilitating binding to cell surface scavenger receptors that enable recognition by nucleic acid pattern recognition receptors within the cell...
March 5, 2018: Scientific Reports
Steven R Feldman, Leah A Cardwell, Sarah L Taylor
No abstract text is available yet for this article.
April 2018: Dermatologic Clinics
Hossein Alinia, Sara Moradi Tuchayi, Sara M James, Leah A Cardwell, Sonali Nanda, Naeim Bahrami, Olabola Awosika, Irma Richardson, Karen E Huang, Steven R Feldman
Severity of rosacea in populations is not well characterized. A validated self-assessment tool was used to study the relationship between rosacea severity and demographic factors. Subjects were adult patients with a clinical diagnosis of rosacea. Self-assessment severity scores were significantly higher in participants less than 60 years old (mean 3.43 ± 1.07) compared with those greater than or equal to 60 years old (mean 3.09 ± 1.13; P = .04). Self-assessment severity scores were significantly higher in men (3...
April 2018: Dermatologic Clinics
Sara Moradi Tuchayi, Hossein Alinia, Lucy Lan, Olabola Awosika, Abigail Cline, Leah A Cardwell, Dennis Hopkinson, Irma Richardson, Karen E Huang, Steven R Feldman
The lack of validated rosacea assessment tools is a hurdle in assessing rosacea severity. This article discusses a valid and reliable rosacea severity self-assessment tool (RSAT) to measure rosacea severity. To determine test-retest validity, participants completed the self-assessment twice. A blinded physician graded the participant's disease severity with the Investigator Global Severity (IGS) score. Pearson correlations were used to assess the relationship between the self-assessment measure and the IGS...
April 2018: Dermatologic Clinics
Olabola Awosika, Elias Oussedik
Rosacea is a common inflammatory skin disease with a multifaceted pathophysiology, including environmental stressors and neurovascular and immune dysfunction affected by the presence of pathogens. The genetic component of this disorder is not well understood. However, a possible genetic origin in Northern European descendants, family inheritance, twin concordance, and genetic associations with autoimmune disorders attest the genetic predisposition to rosacea. Currently, one single-nucleotide polymorphism has been identified in association with rosacea and is intergenic between HLA-DRA and BTNL2...
April 2018: Dermatologic Clinics
Christine S Ahn, William W Huang
Rosacea is a chronic inflammatory skin disorder that is not fully understood but involves the complex interplay of genetic factors, immune dysregulation, neurovascular dysregulation, presence of microorganisms, and environmental factors. Increased activation of the immune system occurs through multiple stimuli, including increased levels of cathelicidin and kallikrein 5, Toll-like receptor 2, matrix metalloproteinases, and mast cells within the skin. Their effects are enhanced by the presence of microorganisms and external triggers, such as UV radiation...
April 2018: Dermatologic Clinics
Leah A Cardwell, Timothy Nyckowski, Laura N Uwakwe, Steven R Feldman
Rosacea has significant quality of life impact. The authors review the literature and Internet sources pertaining to rosacea to identify coping mechanisms and resources available to rosacea patients. MEDLINE and PsycINFO databases were searched to identify pertinent articles. The term "rosacea" was searched in combination with "patient resources," "coping," "dealing with," "blog," "forum," "support," "nonpharmacologic," and "psychological...
April 2018: Dermatologic Clinics
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