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1.
Int J Vitam Nutr Res ; 90(3-4): 200-204, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31414974

RESUMEN

Reduced serum 25(OH)D levels have been largely reported in vitiligo, which is an autoimmune skin disorder characterized by the appearance of achromic macules. Since vitamin D can positively modulate immune function and stimulate melanogenesis in vitro, a possible role of sufficient vitamin D levels in promoting the stability of the disease and repigmentation process might be hypothesized in vitiligo. Hence, we conducted an observational study on medical records related to 101 vitiligo patients, in order to correlate baseline 25(OH)D levels with the baseline vitiligo activity and repigmentation of vitiligo macules on a 6-month follow-up. According to our results, at baseline we found that active vitiligo was significantly associated with 25(OH)D deficiency (≤20 ng/mL) (P = 0.036) or insufficiency (21-29 ng/mL) (P = 0.041), while stable disease was significantly associated with sufficient 25(OH)D levels (30-100 ng/mL) (P = 0.043). After 6 months, vitiligo patients with sufficient 25(OH)D levels (30-100 ng/mL) achieved a significantly higher degree of repigmentation. In conclusion, our study provides a novel evidence of a significant positive association of sufficient 25(OH)D levels with the stability of the disease and a satisfactory repigmentation process in Caucasian adult vitiligo patients and strengthen the need to assess vitamin D status in vitiligo. The correlation between sufficient vitamin D levels and a satisfactory course of the disease opens the way for future randomized controlled trials assessing a possible beneficial role of vitamin D supplementation on vitiligo.


Asunto(s)
Deficiencia de Vitamina D , Vitaminas/química , Vitíligo , Adulto , Estudios de Cohortes , Humanos , Vitamina D , Deficiencia de Vitamina D/metabolismo
2.
Nat Med ; 23(5): 590-600, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28394330

RESUMEN

Cystic fibrosis (CF) is caused by mutations in the gene encoding the cystic fibrosis transmembrane conductance regulator (CFTR) that compromise its chloride channel activity. The most common mutation, p.Phe508del, results in the production of a misfolded CFTR protein, which has residual channel activity but is prematurely degraded. Because of the inherent complexity of the pathogenetic mechanisms involved in CF, which include impaired chloride permeability and persistent lung inflammation, a multidrug approach is required for efficacious CF therapy. To date, no individual drug with pleiotropic beneficial effects is available for CF. Here we report on the ability of thymosin alpha 1 (Tα1)-a naturally occurring polypeptide with an excellent safety profile in the clinic when used as an adjuvant or an immunotherapeutic agent-to rectify the multiple tissue defects in mice with CF as well as in cells from subjects with the p.Phe508del mutation. Tα1 displayed two combined properties that favorably opposed CF symptomatology: it reduced inflammation and increased CFTR maturation, stability and activity. By virtue of this two-pronged action, Tα1 has strong potential to be an efficacious single-molecule-based therapeutic agent for CF.


Asunto(s)
Adyuvantes Inmunológicos/farmacología , Regulador de Conductancia de Transmembrana de Fibrosis Quística/efectos de los fármacos , Fibrosis Quística/genética , Citocinas/efectos de los fármacos , Células Epiteliales/efectos de los fármacos , Timosina/análogos & derivados , Animales , Autofagia/efectos de los fármacos , Western Blotting , Línea Celular , Canales de Cloruro/efectos de los fármacos , Canales de Cloruro/metabolismo , Fibrosis Quística/inmunología , Fibrosis Quística/metabolismo , Regulador de Conductancia de Transmembrana de Fibrosis Quística/genética , Regulador de Conductancia de Transmembrana de Fibrosis Quística/metabolismo , Citocinas/inmunología , Modelos Animales de Enfermedad , Células Epiteliales/metabolismo , Técnica del Anticuerpo Fluorescente , Humanos , Inmunohistoquímica , Inmunoprecipitación , Indolamina-Pirrol 2,3,-Dioxigenasa/efectos de los fármacos , Indolamina-Pirrol 2,3,-Dioxigenasa/inmunología , Inflamación , Ratones , Ratones Endogámicos CFTR , Técnicas de Placa-Clamp , Estabilidad Proteica/efectos de los fármacos , Células RAW 264.7 , Mucosa Respiratoria/citología , Timalfasina , Timosina/farmacología , Ubiquitina Tiolesterasa/efectos de los fármacos , Ubiquitina Tiolesterasa/metabolismo , Ubiquitinación/efectos de los fármacos
3.
Biomed Res Int ; 2016: 7981640, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27631010

RESUMEN

Flash-lamp pulsed-dye laser (FPDL) is a nonablative technology, typically used in vascular malformation therapy due to its specificity for hemoglobin. FPDL treatments were performed in a large group of patients with persistent and/or recalcitrant different dermatological lesions with cutaneous microvessel involvement. In particular, 149 patients (73 males and 76 females) were treated. They were affected by the following dermatological disorders: angiokeratoma circumscriptum, genital and extragenital viral warts, striae rubrae, basal cell carcinoma, Kaposi's sarcoma, angiolymphoid hyperplasia, and Jessner-Kanof disease. They all underwent various laser sessions. 89 patients (59.7%) achieved excellent clearance, 32 patients (21.4%) achieved good-moderate clearance, 19 patients (12.7%) obtained slight clearance, and 9 subjects (6.1%) had low or no removal of their lesion. In all cases, FPDL was found to be a safe and effective treatment for the abovementioned dermatological lesions in which skin microvessels play a role in pathogenesis or development. Further and single-indication studies, however, are required to assess a standardized and reproducible method for applying this technology to "off-label" indications.


Asunto(s)
Láseres de Colorantes/uso terapéutico , Iluminación/métodos , Terapia por Luz de Baja Intensidad/métodos , Enfermedades Cutáneas Vasculares/patología , Enfermedades Cutáneas Vasculares/radioterapia , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
4.
Med Princ Pract ; 25(5): 477-82, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27212149

RESUMEN

OBJECTIVE: The aim of this work was to verify the usefulness and efficacy of treating superficial vascular lesions of the face using rhodamine intense pulsed light (r-IPL). SUBJECTS AND METHODS: Fifty patients suffering from telangiectasias of the face were enrolled and subsequently treated 4 times (every 20 days) with a new intensified r-IPL system optimized at the same wavelength as the dye laser (595 nm). The outcome was assessed using photographs, and clinical evaluations were made based on the percentage of fading of the erythema and telangiectasias in the lesions after treatment. RESULTS: Marked clinical improvements (70-100%) were observed in 31 (62%) patients after the second session of r-IPL, while 46 (92%) showed a marked improvement after the fourth session. No patients had to resort to topical or systemic drugs. CONCLUSION: r-IPL was effective in treating superficial vascular lesions, no side effects were observed and the patients readily accepted the treatment. Hence, r-IPL could be promising for the treatment of superficial vascular lesions of the face. Future study would be necessary to confirm the long-term efficacy of this technique.


Asunto(s)
Cara , Tratamiento de Luz Pulsada Intensa/métodos , Rodaminas , Enfermedades de la Piel/terapia , Enfermedades Vasculares/terapia , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
5.
Dermatol Ther ; 28(1): 17-21, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25285994

RESUMEN

Phyllanthus emblica, vitamin E, and caroteinods are compounds showing antioxidative, anti-inflammatory, and repigmenting effects, whose role in vitiligo treatment has not been evaluated so far. Sixty-five subjects (group A) were treated with one tablet of an oral supplement containing P. emblica (100 mg), vitamin E (10 mg), and carotenoids (4.7 mg) three times/day for 6 months and compared with a control group (group B, 65 patients), which instead was not treated with antioxidants. Both groups were simultaneously treated with a comparable topical therapy and/or phototherapy. After a 6 months follow-up, a significantly higher number of patients in group A had a mild repigmentation on the head/neck regions (p = 0.019) and on the trunk (trend, p = 0.051). The number of patients who presented no repigmentation in head/neck, trunk, upper, and lower limbs was significantly higher in group B (respectively, p = 0.009, p = 0.001, p = 0.001, p = 0.025). Moreover, group B patients showed higher signs of inflammation (p = 0.002), a more rapid growth of the lesions (p = 0.039), a higher percentage of worsening disease (p = 0.003), and more erythema (p = 0.059), whereas group A patients showed a higher percentage of steady disease (p = 0.065). Our results suggest that the supplement with antioxidants in patients with vitiligo might represent a valuable instrument to increase the effectiveness of other vitiligo treatments. [Correction added after online publication 06-Oct-2014: the dosages of vitamin E and carotenoids have been updated.].


Asunto(s)
Antioxidantes/uso terapéutico , Fototerapia/métodos , Pigmentación de la Piel/efectos de los fármacos , Vitíligo/terapia , Administración Cutánea , Administración Oral , Adolescente , Adulto , Antioxidantes/administración & dosificación , Carotenoides/administración & dosificación , Carotenoides/uso terapéutico , Terapia Combinada , Combinación de Medicamentos , Femenino , Estudios de Seguimiento , Frutas , Humanos , Masculino , Persona de Mediana Edad , Phyllanthus emblica/química , Resultado del Tratamiento , Vitamina E/administración & dosificación , Vitamina E/uso terapéutico , Vitíligo/patología , Adulto Joven
6.
J Cosmet Laser Ther ; 16(3): 114-6, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24131098

RESUMEN

Dermatosis Papulosa Nigra (DPN) is a common skin condition observed in black people and considered a benign epithelial tumor, and more specifically, a particular topographic form of seborrheic keratosis. We treated five female patients affected by DPN with 10,600-nm CO2 laser. We propose the 10,600-nm CO2 laser as a valid therapeutic option in patients affected by DPN, since the treatment is well tolerated, causes no major side effects, and is effective and long lasting.


Asunto(s)
Técnicas Cosméticas/instrumentación , Láseres de Gas/uso terapéutico , Terapia por Luz de Baja Intensidad/instrumentación , Enfermedades Cutáneas Papuloescamosas/radioterapia , Femenino , Humanos , Persona de Mediana Edad , Grupos Raciales
7.
Expert Opin Pharmacother ; 13(13): 1885-99, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22835073

RESUMEN

INTRODUCTION: Vitiligo is a common pigmentary skin disorder, characterized by the appearance of white macules on the skin, mucosal or hair. Treatment is often a tough challenge and involves a wide range of therapies. AREAS COVERED: This review focuses on available first- and second-line pharmacological treatments for vitiligo. In particular, the mechanisms of action, the main indications, the efficacy and the most important side effects are reviewed. Moreover, a brief discussion is provided, regarding other nonpharmacological treatments, such as phototherapy and surgical options, due to their importance and successful outcomes in vitiligo treatment. Finally, a concise overview regarding the future directions in vitiligo therapy is presented. EXPERT OPINION: The promising outcomes reported here demonstrate that it is possible to achieve a satisfactory and often stable repigmentation of vitiligo lesions. Topical corticosteroids, calcineurin inhibitors, phototherapy and photochemotherapy represent the first-line therapeutic options, due to their safety and efficacy, whereas vitamin D analogues, targeted phototherapy, oral corticosteroids and surgery should be used as second-line therapies. Other therapies, such as antioxidants, can be used in association with other therapeutic options, whereas depigmenting agents should be used only in cases of extensive vitiligo, recalcitrant to other treatments.


Asunto(s)
Fármacos Dermatológicos/uso terapéutico , Fototerapia/métodos , Vitíligo/tratamiento farmacológico , Animales , Antioxidantes/uso terapéutico , Fármacos Dermatológicos/efectos adversos , Fármacos Dermatológicos/farmacología , Humanos , Fotoquimioterapia/métodos , Preparaciones para Aclaramiento de la Piel/uso terapéutico , Pigmentación de la Piel , Resultado del Tratamiento , Vitíligo/patología , Vitíligo/terapia
8.
Dermatol Ther ; 21(2): 110-7, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18394085

RESUMEN

Vitiligo is a cosmetically disfiguring condition, and, although there is no therapeutic full solution yet, some treatment may induce good results in most patients. The disease can be successfully treated with various medical options. Both nonfocused or focused narrowband ultraviolet B phototherapy represents the current treatment of choice, to minimize side effects and reach optimal clinical results. Topical novel approaches are also considered. Surgical methods, consisting of autologous transplantation methods, is generally recommended for focal/stable vitiligo, after medical therapy has failed. Finally, for patients with extensive vitiligo, depigmentation of the residual melanin should be taken into account.


Asunto(s)
Antioxidantes/uso terapéutico , Fármacos Dermatológicos/uso terapéutico , Dermatología , Trasplante de Piel , Terapia Ultravioleta , Vitíligo/terapia , Administración Tópica , Antioxidantes/administración & dosificación , Fármacos Dermatológicos/administración & dosificación , Dermatología/tendencias , Humanos , Selección de Paciente , Pigmentación de la Piel/efectos de los fármacos , Pigmentación de la Piel/efectos de la radiación , Trasplante de Piel/tendencias , Trasplante Autólogo , Resultado del Tratamiento , Terapia Ultravioleta/tendencias , Vitíligo/tratamiento farmacológico , Vitíligo/fisiopatología , Vitíligo/radioterapia , Vitíligo/cirugía
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