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Tars are one of the most effective, unknown, and oldest therapies for psoriasis. They include coal tar (CT) and biomass-derived products. These treatments, particularly the CT, have proven to be cost-effective with long remission times compared to other systemic or topical treatments. However, they have hardly evolved in recent years, as they are not well-embraced by clinicians or patients because of concerns regarding cosmesis and safety. This review summarizes current knowledge about the chemical characterization, mechanism of action, toxicity, and clinical studies supporting the use of tars for psoriasis over the last decade. Trends within these above aspects are reviewed, and avenues of research are identified. CT is rich in polycyclic aromatic hydrocarbons, whereas biomass-derived tars are rich in phenols. While the activation of the aryl hydrocarbon receptor is involved in the antipsoriatic effect of CT, the mechanism of action of biomass-derived products remains to be elucidated. No conclusive evidence exists about the risk of cancer in psoriasis patients under CT treatment. Large, randomized, double-blind, controlled clinical trials are necessary to promote the inclusion of tars as part of modern therapies for psoriasis., (© 2022 the International Society of Dermatology.)

Objectives: The effects of chronic low and high blood pressure on memory are unclear due to divergent results, originating in part due to participant misclassifications. The aim of this study was to compare source memory and working memory performance in individuals diagnosed with hypotension or hypertension with the performance of normotensive participants. Hypertensive and hypotensive individuals were receiving medical treatment., Method: From a sample of 1656 participants, 219 were identified as hypertensive, and 37 were identified as hypotensive. Each of these two groups was compared with normotensive individuals matched by age, education and sex. Source memory performance and working memory performance were assessed through computerized tasks., Results: Source memory accuracy was poorer in hypotensive and hypertensive individuals than in normotensive individuals, and spatial working memory discrimination was inferior in hypertensive participants compared to normotensive individuals., Conclusion: Blood pressure impairment should be considered a major concern because it has been linked to severe cardiovascular and cerebrovascular diseases. Furthermore, here we show that it has negative effects on the two types of memory that are most essential for preserving a self-sufficient lifestyle.

La psoriasis es una enfermedad cutánea incurable que afecta a 2.9 % de la población mexicana, por lo que es trascendente analizar el impacto de la medicina traslacional en el desarrollo de medicamentos antipsoriásicos. En esta revisión se discuten conceptos etiopatogénicos de la enfermedad y se analizan artículos publicados entre 2005 y 2017 en torno a medicamentos en desarrollo, además, se presenta un análisis crítico sobre las perspectivas futuras en el desarrollo de nuevos tratamientos. El uso de estrategias bidireccionales de la medicina traslacional ha permitido incrementar significativamente el número de tratamientos antipsoriásicos disponibles. Se encontraron 18 nuevos fármacos en exploración. La caracterización de antígenos responsables de la activación inmunológica, la identificación de biomarcadores predictivos de eficacia farmacológica, el desarrollo de modelos más representativos de la enfermedad, así como la integración de aspectos farmacogenómicos a estrategias de medicina traslacional fueron identificados como elementos relevantes que deben ser incorporados en el desarrollo de nuevas opciones terapéuticas., Psoriasis is an incurable cutaneous disease that affects 2.9% of the Mexican population, and it is therefore important for the impact of translational medicine on the development of anti-psoriatic drugs to be analyzed. In this review, current etiopathogenic concepts of the disease are discussed, and articles on drugs under development published between 2005 and 2017 are reviewed; in addition, a critical analysis on future perspectives for the development new treatments is presented. The use of translational medicine bi-directional strategies of has allowed to significantly increase the number of available anti-psoriatic therapies. Eighteen new investigational drugs were found. Characterization of antigens responsible for immune activation, identification of predictive biomarkers with pharmacologic efficacy, and the development of more representative disease models, as well as the integration of pharmacogenomic aspects to translational medicine strategies were identified as relevant aspects that should be incorporated in the development of new therapeutic options., (Copyright: © 2018 SecretarÍa de Salud.)