Attitudes and behaviors regarding sun exposure in Japan compared to Europe and North America.

The objective of our study was to assess the attitudes and behaviors in Japan regarding sun exposure and compare them to those in Europe and North America. The study population was a representative sample of individuals aged >18 years from Ipsos panels in Japan (N = 1000), North America (N = 1000), and Europe (N = 6000) using the quota method. Questionnaires covered habits, practices, and perceptions regarding sun exposure. Results revealed that the majority of people (80.1%) believed that the sun gives them energy, and 61.1% considered that being tanned made them look healthier. However, there was a significant difference between men and women regarding the appeal of tanned skin, with 54.95% of men versus 34.67% (p < 0.001) of women seeing a tan as an aesthetic asset. People aged <40 years were less likely to find a tan attractive (30.3%) compared to those aged ≥40 years (48.9%) (p < 0.001). Of those questioned, 45.70% of used sunscreen with a much higher use among women (70.10%) than men (18.74%) (p < 0.001). Almost 54% of people said they stayed in the shade to protect themselves from the sun with this behavior being more prevalent among women (67.05%) and fair-skinned individuals (56.13%). Fear of the risks of sun exposure was more common among women, with 84.8% fearing premature skin aging, compared to 71.8% of men (p < 0.001). In Japan, 44.30% of those questioned said tanned skin was attractive (p < 0.001); for Europeans and North Americans the proportions were 81.1% and 77.6%, respectively. Only a quarter (25.80%) thought it essential to return from vacation with a tan. On the other hand, Europeans showed a strong recognition of the energy the sun brings (83.18%), and widely believed that tanned skin is attractive (82.32%) and healthy (73.15%). In North America, attitudes were similar to those in Europe regarding the attractiveness of tanned skin (77.65%) and the importance of returning tanned from vacation (48.15%). Compared to Europeans and North Americans, the Japanese seemed to be more cautious about sun-induced hazards and considered lighter skin to be more attractive.

Photoprotection according to skin phototype and dermatoses: practical recommendations from an expert panel.

Increasing evidence on the impact of the different wavelengths of sunlight on the skin demonstrates the need for tailored recommendations of sunscreen according to skin phototype and dermatoses, which is now possible due to advances in the filters and formulations of sunscreens. A selective literature search was performed by an international expert panel, focusing on the type of sunscreen to recommend for photoaging, skin cancers, photodermatoses, pigmentary disorders and skin inflammatory disorders. Protection against ultraviolet (UV)B is especially important for light skin as there is a high risk of sunburn, DNA damage and skin cancers. Darker skin may be naturally better protected against UVB but is more prone to hyperpigmentation induced by visible light (VL) and UVA. Protection against UVA, VL and infrared A can be helpful for all skin phototypes as they penetrate deeply and cause photoaging. Long-wave UVA1 plays a critical role in pigmentation, photoaging, skin cancer, DNA damage and photodermatoses. Adapting the formulation and texture of the sunscreen to the type of skin and dermatoses is also essential. Practical recommendations on the type of sunscreen to prescribe are provided to support the clinician in daily practice.

Review of oral minoxidil as treatment of hair disorders: in search of the perfect dose.

Topical minoxidil has been used for many years as treatment for different hair disorders. Even though it is an effective therapy, many patients show poor compliance due to the cosmesis, cost and side-effects. During the last few years, low-dose oral minoxidil has proven to be an alternative for patients with alopecia. We performed a literature search including all the articles that used oral minoxidil as a primary treatment in various hair diseases in order to evaluate the efficacy and safety of low-dose oral minoxidil as an alternative to topical minoxidil. Androgenetic alopecia was the most common studied condition, but others included telogen effluvium, tractional alopecia, postchemotherapy-induced alopecia, monilethrix, loose anagen hair syndrome, alopecia areata and scarring alopecias (frontal fibrosing alopecia and lichen planopilaris). Larger randomized comparative studies including standardized objective measurements should be done in order to clarify the best treatment protocol, including dosage and treatment duration. Oral minoxidil has proven to be a successful and well-tolerated alternative for patients with hair loss, including those with poor adherence to other therapies. Different dosing regimens have been utilized in scarring and non-scarring alopecia, varying from 0.25 to 5 mg daily. Higher doses have not been studied in men or women. Available literature suggests women require lower doses, from 0.25 to 2.5 mg daily, while men require higher doses for maximal efficacy, from 1.25 to 5 mg a day.

Máculas eritematosas urentes orales como manifestación inicial de deficiencia de la vitamina B12 / Burning Erythematous Oral Macules as the Presenting Manifestation of Vitamin B12 Deficiency

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A novel experimental immunomodulatory therapy against Nocardia brasiliensis in a BALB/c murine model.

BACKGROUND: Mycetoma is recognized as a neglected tropical disease and there are still therapeutic challenges, especially in cases recalcitrant to standard therapy or with high risk of dissemination. Subcultures have been used previously to decrease the virulence of human pathogens. Previous reports have demonstrated that after carrying out 200 subcultures of Nocardia brasiliensis, a decrease in virulence was observed. AIM: To evaluate the effect of attenuated N. brasiliensis strains on the development of lesions in an established mycetoma infection. METHODS: Female 8-12-week-old BALB/c mice were injected with N. brasiliensis suspension to establish a mycetoma. Sixty mice were selected and divided into three groups: two of these groups were inoculated in the dorsum with N. brasiliensis subcultured 200 and 400 times, respectively, while the third group served as control. The thickness of each lesion was measured with calipers every week for 12 weeks. RESULTS: After 12 weeks, we observed that inoculation of 1 × 105 colony-forming units of attenuated N. brasiliensis strains was able to modify the natural history of the infection, with a decrease in the size of the lesions, particularly with P400, compared with the control group (P < 0.01). CONCLUSION: In this experimental evaluation of an immunomodulatory therapy with attenuated N. brasiliensis strains in a murine model, there was a greater stability in the size of the lesion over time in BALB/c mice inoculated with the P400 strain. This treatment could open the possibility of using the attenuated strain as immunomodulatory therapy in patients recalcitrant to standard therapy, with high risk of dissemination or who develop drug-related adverse effects.

Efficacy of a repair cream based on Rhealba Oat plantlets extract and active healing compounds in peelings: benefit to patient's downtime and pain.

BACKGROUND: The frequency of dermatological procedures is steadily increasing, accompanying a growing demand from patients. Chemical peels are a method of resurfacing in the treatment of various skin conditions. However, during the early healing process, patients may impose downtime on themselves. The erythema, pain and poor aesthetic appearance of the skin can lead to unwillingness to participate in social or professional activities. OBJECTIVES: The objective of this study was to evaluate the tolerance and efficacy of a repair cream based on Rhealba Oat plantlets extract and active healing compounds after a peeling procedure. METHODS: Men and women, aged 18-65 years, with Fitzpatrick phototype I-IV, who had previously received a medium-depth chemical peel on the face (TCA 30%) entered with their consent a clinical study evaluating the new test product based on Rhealba Oat and active healing compounds. At the beginning of the study, the selected patients received a TCA 30% medium-depth peel. Afterwards, they were treated during 29 days with the repair cream and evaluated for the benefits to downtime and pain. RESULTS: Significant reductions of pain (P < 0.0114) and erythema (P < 0.0001) were observed in the study. The downtime reduction with the tested cream was 92% - from 9 days after the previous peeling procedure to 0.74 days with application of the tested cream - a difference of 8.39 days. CONCLUSION: In consequence, the tested repair cream based on Rhealba Oat plantlets extract and active healing compounds brings clinical benefit to patients who undergo peeling procedures. By reducing pain and downtime, it allows patients to get back to their daily life activities a week earlier than with previous peels.

Síndrome de Osler-Weber-Rendu y su relación con la dermatología / Osler-Weber-Rendu Syndrome in Relation to Dermatology

El síndrome de Osler-Weber-Rendu, o síndrome hereditario hemorrágico telangiectasia, es un trastorno raro de herencia autosómica dominante con una prevalencia estimada de 1:10.000 personas a nivel mundial. Las manifestaciones clínicas de este síndrome son resultado de malformaciones arteriovenosas y varían desde telangiectasias en piel y mucosas hasta afección de órganos sólidos que ponen en peligro la vida, como alteraciones hepáticas, émbolos sistémicos y fallo cardíaco, por lo cual el diagnóstico oportuno es de suma importancia para prevenir las complicaciones de la enfermedad y proporcionar apoyo genético a los familiares. En esta revisión se analiza el cuadro clínico con enfoque principal en las manifestaciones mucocutáneas de la enfermedad y su abordaje terapéutico

Osler-Weber-Rendu syndrome, also known as hereditary hemorrhagic telangiectasia, is a rare autosomal dominant disorder with an estimated worldwide prevalence of 1 case per 10,000 population. Its clinical manifestations are the result of arteriovenous malformations characterized by telangiectases that can affect the skin, mucous membranes, and solid organs and cause life-threatening conditions, such as liver disease, systemic emboli, and heart failure. Timely diagnosis is thus essential in order to prevent disease-related complications and offer genetic counseling to families. We review the clinical features of Osler-Weber-Rendu syndrome with a focus on mucocutaneous manifestations and their treatment