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1.
Dermatol Ther ; 34(1): e14562, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33219567

RESUMEN

Aim of the study is to compare efficacy of targeted broad-band UVB phototherapy and topical psoralen with targeted UVA phototherapy treatments in localized vitiligo for 3 months prospectively. The cases with symmetrical vitiligo lesions were included in the study. Broad-band targeted UVB was applied on one side and targeted UVA phototherapy with topical psoralen on the other side. Twenty-two patients who were diagnosed with localized vitiligo were enrolled in this study. These cases consisted of 6 (27.3%) females and 16 (72.7%) males aging between 17 and 69 (34.22 ± 14.15). Fifty-four lesions (27 left, 27 right) were compared for treatments. After the first month of the treatments, the sides of the lesions were compared in order to evaluate improvement. Percentages of success were 25% for targeted broad-band UVB microphototherapy and 75% for topical psoralen with targeted UVA microphototherapy. When the two treatment methods were compared with each other, a significant difference was found in terms of treatment response (P = .017). At the end of the third month, the success rates were 37.5% for targeted broad-band UVB microphototherapy and 62.5% for topical psoralen with targeted UVA microphototherapy, however a statistically significant difference was not determined between the two treatments (P > .05). Both targeted broad-band UVB phototherapy and topical psoralen with targeted UVA phototherapy provided repigmentation for localized vitiligo at the end of the third month. Our investigation shows that both treatments are safe and they provide repigmentation with a limited response.


Asunto(s)
Ficusina/uso terapéutico , Terapia Ultravioleta , Vitíligo , Administración Cutánea , Femenino , Humanos , Masculino , Fototerapia , Resultado del Tratamiento , Vitíligo/tratamiento farmacológico , Vitíligo/terapia
2.
J Drugs Dermatol ; 13(3): 291-6, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24595574

RESUMEN

In this study, the efficacy of non-contact, selective radiofrequency (RF) were evaluated for body contouring as non-invasive fat and circumferential reduction of the abdomen. 40 healthy (36 female, 4 male) subjects showing significant volume of subcutaneous fat tissue on the abdomen and waistline were included. Once a week for 30 minutes, 4 sessions were performed. The applicator was placed on a supplied spacer covering the treatment area. Maximum power was 200W, which induced heat in the fat and connective tissue layer. The homogeneity of heat distribution and temperature of the skin surface were controlled. The circumferential reduction was measured at the baseline and after the last treatment. The photographs and adverse effects were recorded. Participants completed the self-evaluation questionnaires and rated their level of satisfaction. All subjects tolerated the treatments well. The only side effect was mild to moderate erythema. 35 subjects finished the protocol as planned and 5 subjects dropped off due to events not related to the study. 32 subjects had a 1-13 cm decrease in abdominal circumference and 3 subjects did not show significant response (0-1 cm). Most likely, a very thin fat layer was the reason for lack of response (the non-responding group was the thinnest patient group). No significant differences were found between men and women. The average decrease of 4.93 cm was calculated as a result of circumferential reduction statistical evidence. This study demonstrates that the selective RF system designed for contactless deep tissue heating is a painless, safe, and effective treatment for non-surgical body contouring and circumferential fat reduction.


Asunto(s)
Técnicas Cosméticas , Terapia por Radiofrecuencia , Grasa Subcutánea Abdominal/efectos de la radiación , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Estudios Prospectivos , Ondas de Radio/efectos adversos , Encuestas y Cuestionarios , Resultado del Tratamiento , Adulto Joven
4.
Lasers Med Sci ; 28(3): 1035-41, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-22892613

RESUMEN

Vitiligo is a relatively common acquired disorder, characterized by progressive loss of melanocytes from the epidermis and the epidermal appendages. The disease is associated with considerable morbidity because of a major impact on the quality of life. The treatment for vitiligo is generally unsatisfactory and challenging. There are a variety of therapeutic possibilities including topical corticosteroids, topical calcineurin inhibitors, as well as phototherapy with Psoralen plus UVA (PUVA), narrow-band UVB, and a 308-nm excimer laser and/or lamps. Furthermore, surgical methods encompass grafting and transplantation while depigmentation treatments and psychological support may also be considered. The objective is to assess the effect of the 380-nm excimer laser in the treatment of vitiligo based on the available studies and case series. We searched the relevant literature about vitiligo and excimer laser published between 1990 and 2012 using the MEDLINE database. We reviewed all relevant articles about 308-nm excimer laser and light sources assessing their efficacy in the management of vitiligo as well as their side effects. The value of combination treatment methods was also analyzed. The available studies provide strong evidence that the excimer laser represents the most effective approach to treat vitiligo compared to ordinary phototherapy. Excimer laser is relatively safe and effective for localized disease. UV-sensitive areas respond best as well as a short duration of the disease. More frequent treatments achieve better results. Compared to other treatment modalities, the excimer laser most likely constitutes the treatment of choice for localized vitiligo. Its efficacy can be further improved in combination with other therapies such as corticosteroids, pimecrolimus, or tacrolimus.


Asunto(s)
Láseres de Excímeros/uso terapéutico , Terapia Ultravioleta/métodos , Vitíligo/radioterapia , Ensayos Clínicos como Asunto , Terapia Combinada , Humanos , Láseres de Excímeros/efectos adversos , Fotoquimioterapia , Pigmentación de la Piel/efectos de los fármacos , Pigmentación de la Piel/efectos de la radiación , Resultado del Tratamiento , Terapia Ultravioleta/efectos adversos , Vitíligo/tratamiento farmacológico , Vitíligo/patología
5.
J Cosmet Dermatol ; 21(3): 1018-1022, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33872451

RESUMEN

BACKGROUND: Lasers have great importance in the management of vascular skin lesions. AIM: To determine the efficacy of 577-nm pro-yellow laser in cure of certain vascular skin diseases. MATERIAL AND METHODS: Seventy-four patients who are diagnosed as vascular skin diseases were involved in this study. All participants were treated with 577-nm pro-yellow laser with 4-week intervals. The photographs that were taken before and at every following visit were used to evaluate improvement. RESULTS: A significant improvement occurred in port-wine stain, rosacea, facial telangiectasia, venous lake, scrotal angiokeratoma, and cherry angioma cases. CONCLUSION: Vascular skin lesions can be treated with 577-nm pro-yellow laser with a minimal adverse effect and great success rate.


Asunto(s)
Mancha Vino de Oporto , Enfermedades Cutáneas Vasculares , Telangiectasia , Humanos , Rayos Láser , Mancha Vino de Oporto/cirugía , Telangiectasia/patología , Resultado del Tratamiento
6.
J Cosmet Dermatol ; 20(12): 3931-3933, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33905611

RESUMEN

BACKGROUND: Syringoma is a benign sweat gland tumor. AIM: Vulvar location of syringoma is rare. Although the lesions are asymptomatic, it requires treatment due to the cosmetic concerns. PATIENTS/METHODS: We present a 42-year-old woman with vulvar syringoma. RESULTS: The patient treated with 577 nm pro-yellow laser with a great success. CONCLUSION: A 577 nm pro-yellow laser is a good alternative in the treatment of vulvar syringoma.


Asunto(s)
Neoplasias de las Glándulas Sudoríparas , Siringoma , Neoplasias de la Vulva , Adulto , Femenino , Humanos , Rayos Láser , Neoplasias de las Glándulas Sudoríparas/cirugía , Siringoma/cirugía , Neoplasias de la Vulva/cirugía
7.
J Am Acad Dermatol ; 60(2): 325-8, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19150277

RESUMEN

Cutaneous leiomyomas are benign neoplasms with smooth muscle differentiation. They are painful tumors of the skin. Nearly 90% of patients report lesion-associated pain, characteristically precipitated by cold or trauma. In the published literature, surgical excision and pharmacologic agents such as analgesics, nifedipine, phenoxybenzamine hydrochloride, gabapentin, and doxazosin have been used in the treatment of leiomyomas with varying degrees of success. Herein we report the use of botulinum toxin for the relief of pain in leiomyomas. The use of botulinum toxin provided a decrease in the amount of analgesic use in our patient. Our experience showed that botulinum toxin might offer a new therapeutic approach for leiomyoma by reducing the intensity and the frequency of the pain. Botulinum toxin has no known systemic adverse effects, and can be combined with other treatments without concern for drug interactions. Like any other medication, aside from its actual pharmacologic effect, botulinum toxin may have had a placebo effect in our patient.


Asunto(s)
Toxinas Botulínicas/uso terapéutico , Leiomiomatosis/complicaciones , Dolor/tratamiento farmacológico , Dolor/etiología , Neoplasias Cutáneas/complicaciones , Adulto , Analgésicos/uso terapéutico , Quimioterapia Combinada , Femenino , Humanos , Umbral del Dolor/efectos de los fármacos
8.
Eur J Pediatr ; 168(8): 933-5, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18982349

RESUMEN

INTRODUCTION: A four and half-year-old girl was admitted to our clinic with the complaints of diarrhea since birth and failure to thrive. DISCUSSION: The characteristic findings in physical examination were facial dysmorphism, hepatomegaly, and wooly hair. Trichorrhexis nodosa was established in microscopic hair examination. Colonoscopy and histopathologic examination of colonic mucosa revealed mild colitis. In the light of previously published cases, this patient was accepted as a mild variant of syndromic (phenotypic) diarrhea or tricho-hepato-enteric syndrome. We conclude that a mild phenotypic variant of this disease exists that may present with colitis.


Asunto(s)
Anomalías Múltiples , Colitis/etiología , Diarrea/congénito , Cara/anomalías , Cabello/anomalías , Hepatopatías , Preescolar , Insuficiencia de Crecimiento/etiología , Femenino , Humanos , Síndrome
9.
J Am Acad Dermatol ; 58(4): 579-84, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18045733

RESUMEN

BACKGROUND: Behçet's disease (BD) is a multisystemic inflammatory disorder of unknown origin. The disease usually occurs between the second and the fourth decades, whereas it is uncommon in children. OBJECTIVE: In this multicenter study, we aimed to describe the demographic and clinical features along with severity in juvenile- versus adult-onset BD. METHODS: Patients with initial symptoms at age 16 years or younger were considered as having juvenile-onset BD. In all, 83 patients with juvenile-onset BD (38 male and 45 female; mean age 19.6 +/- 7.6 years) and 536 with adult-onset (>16 years) BD (293 male and 243 female; mean age 39.2 +/- 10.1 years) who fulfilled the classification criteria of the International Study Group for BD were involved in the study. RESULTS: Familial cases were more frequent in juvenile-onset compared with adult-onset BD (19% vs 10.3%; P = .017). The mean age of disease onset was 12.29 +/- 3.54 years in juvenile-onset BD and 31.66 +/- 8.71 years in adult-onset BD. Mucocutaneous lesions and articular symptoms were the most commonly observed manifestations in both groups. The frequency of disease manifestations was not different between juvenile- and adult-onset BD, except neurologic and gastrointestinal involvement, which were higher in juvenile-onset BD than adult-onset BD (P = .027 and P = .024, respectively). Oral ulcer was the most common onset manifestation of both juvenile-onset (86.74%) and adult-onset (89.55%) BD. The frequencies of onset manifestations of BD were similar, except genital ulcer, which was higher in adult-onset BD (P = .025). LIMITATIONS: Our study consisted of patients with BD mainly applying to dermatology and venerology departments. Therefore, it can be speculated that this study includes rather a milder spectrum of the disease. CONCLUSIONS: Although the clinical spectrum of juvenile-onset BD seems to be similar to adult-onset BD, the frequency of severe organ involvement was higher. Because of the higher prevalence of familial cases in juvenile-onset BD, it can be speculated that genetic factors may favor early expression of the disease with severe organ involvement.


Asunto(s)
Síndrome de Behçet/epidemiología , Adolescente , Adulto , Edad de Inicio , Síndrome de Behçet/diagnóstico , Síndrome de Behçet/patología , Niño , Salud de la Familia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Turquía/epidemiología
10.
Clin Rheumatol ; 27(3): 309-14, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17674116

RESUMEN

Vascular involvement is one of the major characteristics of Behcet's disease (BD). However, there are controversial findings regarding cardiac involvement in BD. Although early reports demonstrated that there is diastolic dysfunction in BD, conflicting results were found in the following trials. Hence, a new method for more objectively estimating the cardiac functions is needed. For this aim, we used high-usefulness tissue Doppler echocardiography for detailed analysis of cardiac changes in BD patients because this method was superior to other conventional echocardiographic techniques. The study population included 42 patients with BD (19 men, 23 women; mean age, 35 +/- 10 years, mean disease duration, 2.7 +/- 1.6 years) and 30 healthy subjects (14 men, 16 women; mean age, 38 +/- 7 years). Cardiac functions were determined using echocardiography, comprising standard two-dimensional and conventional Doppler and tissue Doppler imaging (TDI). Peak systolic myocardial velocity at mitral annulus, early diastolic mitral annular velocity (Em), late diastolic mitral annular velocity (Am), Em/Am, and myocardial performance index (MPI) were calculated by TDI. The conventional echocardiographic parameters and tissue Doppler measurements were similar between the groups. Tissue Doppler derived mitral relaxation time was longer (75 +/- 13 vs 63 +/- 16 msn, p = 0.021) in patients with BD. There was statistically significant difference between the two groups regarding left ventricular MPI (0.458 +/- 0.072 vs 0.416 +/- 0.068%, p = 0.016), which were calculated from tissue Doppler systolic time intervals. There was also significant correlation between the disease duration and MPI (r = 0.38, p = 0.017). We have demonstrated that tissue Doppler-derived myocardial left ventricular relaxation time and MPI were impaired in BD patients, although systolic and diastolic function parameters were comparable in the patients and controls.


Asunto(s)
Síndrome de Behçet/fisiopatología , Ecocardiografía Doppler/métodos , Contracción Miocárdica/fisiología , Disfunción Ventricular Izquierda/fisiopatología , Adulto , Síndrome de Behçet/complicaciones , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Sensibilidad y Especificidad , Disfunción Ventricular Izquierda/complicaciones , Función Ventricular Izquierda/fisiología
11.
Contact Dermatitis ; 58(1): 63-5, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18154569

RESUMEN

Allergic contact dermatitis is increasing in childhood. In children, population-based patch test studies point to different contact sensitizers and reflect the variations in the exposure to certain allergens among different countries. Our aim is to show common contact allergens in a paediatric population in Turkey. Contact dermatitis and identifying the suspected allergen in children are important as sensitization occurring during childhood may cause a susceptibility to the contact dermatitis later in their life.


Asunto(s)
Alérgenos/efectos adversos , Dermatitis Alérgica por Contacto/epidemiología , Adolescente , Factores de Edad , Niño , Preescolar , Dermatitis Alérgica por Contacto/diagnóstico , Dermatitis Alérgica por Contacto/etiología , Femenino , Humanos , Masculino , Níquel/efectos adversos , Pruebas del Parche , Prevalencia , Factores Sexuales , Turquía/epidemiología
12.
Pediatr Dermatol ; 24(6): 660-2, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18035995

RESUMEN

Proteus syndrome is a multisystem disorder and diagnosis has been difficult because of the variability of the syndrome's manifestations. Dermatologists have an important role as cutaneous findings could provide clues for the early diagnosis of the disease. Herein we report a case who had cerebriform connective tissue nevus and lipoma as the sole manifestations of the disease.


Asunto(s)
Enfermedades del Pie/patología , Neoplasias de Tejido Conjuntivo/patología , Síndrome de Proteo/diagnóstico , Adolescente , Humanos , Lipoma/patología , Masculino , Síndrome de Proteo/patología
13.
Clin Dermatol ; 35(1): 40-49, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27938811

RESUMEN

Viruses are considered intracellular obligates with a nucleic acid RNA or DNA. They have the ability to encode proteins involved in viral replication and production of the protective coat within the host cells but require host cell ribosomes and mitochondria for translation. The members of the families Herpesviridae, Poxviridae, Papovaviridae, and Picornaviridae are the most commonly known agents for cutaneous viral diseases, but other virus families, such as Adenoviridae, Togaviridae, Parvoviridae, Paramyxoviridae, Flaviviridae, and Hepadnaviridae, can also infect the skin. Herpetic whitlow should be considered under the title of special viral infections of the acral region, where surgical incision is not recommended; along with verruca plantaris with its resistance to treatment and the search for a new group of treatments, including human papillomavirus vaccines; HIV with maculopapular eruptions and palmoplantar desquamation; orf and milker's nodule with its nodular lesions; papular-purpuric gloves and socks syndrome with its typical clinical presentation; necrolytic acral erythema with its relationship with zinc; and hand, foot, and mouth disease with its characteristics of causing infection with its strains, with high risk for complication.


Asunto(s)
Dermatosis del Pie/virología , Dermatosis de la Mano/virología , Infecciones por Herpesviridae/complicaciones , Verrugas/complicaciones , Animales , Ectima Contagioso/complicaciones , Infecciones por Flaviviridae/complicaciones , Infecciones por VIH/complicaciones , Enfermedad de Boca, Mano y Pie/complicaciones , Humanos , Molusco Contagioso/complicaciones , Infecciones por Parvoviridae/complicaciones , Ovinos
14.
Clin Dermatol ; 35(5): 421-434, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28916023

RESUMEN

Behçet disease is currently considered an "autoinflammatory disease" triggered by infection and environmental factors in genetically predisposed individuals. Although the disease is characterized by recurrent oral and genital aphthous ulcers and ocular involvement, it can affect multiple organ systems. Complex aphthosis is characterized by recurrent oral and/or genital aphthous ulcers. It is important to evaluate the patient with complex aphthosis for Behçet disease and related systemic disorders. We discuss the etiopathogenesis, clinical features, diagnostic criteria, and treatment approaches for complex aphthosis and Behçet disease in light of the current literature.


Asunto(s)
Síndrome de Behçet , Síndrome de Behçet/diagnóstico , Síndrome de Behçet/etiología , Síndrome de Behçet/terapia , Humanos , Recurrencia , Estomatitis Aftosa/etiología
16.
J Invest Dermatol ; 137(7): 1454-1460, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28259682

RESUMEN

The Quality of Life in Hand Eczema Questionnaire (QOLHEQ) is the only instrument assessing disease-specific health-related quality of life in patients with hand eczema. It is available in eight language versions. In this study we assessed if the items of different language versions of the QOLHEQ yield comparable values across countries. An international multicenter study was conducted with participating centers in Finland, Germany, Japan, The Netherlands, Sweden, and Turkey. Methods of item response theory were applied to each subscale to assess differential item functioning for items among countries. Overall, 662 hand eczema patients were recruited into the study. Single items were removed or split according to the item response theory model by country to resolve differential item functioning. After this adjustment, none of the four subscales of the QOLHEQ showed significant misfit to the item response theory model (P < 0.01), and a Person Separation Index of greater than 0.7 showed good internal consistency for each subscale. By adapting the scoring of the QOLHEQ using the methods of item response theory, it was possible to obtain QOLHEQ values that are comparable across countries. Cross-cultural variations in the interpretation of single items were resolved. The QOLHEQ is now ready to be used in international studies assessing the health-related quality of life impact of hand eczema.


Asunto(s)
Comparación Transcultural , Eccema/psicología , Psicometría/métodos , Calidad de Vida , Encuestas y Cuestionarios , Adolescente , Adulto , Anciano , Eccema/epidemiología , Femenino , Salud Global , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Adulto Joven
18.
Clin Dermatol ; 33(4): 429-36, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26051057

RESUMEN

Viruses are considered intracellular obligates with a nucleic acid, either RNA or DNA. They have the ability to encode proteins involved in viral replication and production of the protective coat within the host cells but require host cell ribosomes and mitochondria for translation. The members of the families Herpesviridae, Poxviridae, Papovaviridae, and Picornaviridae are the most commonly known agents for the cutaneous viral diseases, but other virus families, such as Adenoviridae, Togaviridae, Parvoviridae, Paramyxoviridae, Flaviviridae, and Hepadnaviridae, can also infect the skin. Though the cutaneous manifestations of viral infections are closely related to the type and the transmission route of the virus, viral skin diseases may occur in almost any part of the body. In addition to friction caused by skin-to-skin touch, skin folds are warm and moist areas of the skin that have limited air circulation. These features provide a fertile breeding ground for many kinds of microorganisms, including bacteria and fungi. In contrast to specific bacterial and fungal agents that have an affinity for the skin folds, except for viral diseases of the anogenital area, which have well-known presentations, viral skin infections that have a special affinity to the skin folds are not known. Many viral exanthems may affect the skin folds during the course of the infection, but here we focus only on the ones that usually affect the fold areas and also on the less well-known conditions or recently described associations.


Asunto(s)
Intertrigo/epidemiología , Intertrigo/virología , Enfermedades Cutáneas Virales/virología , Antivirales/uso terapéutico , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por Herpesviridae/diagnóstico , Infecciones por Herpesviridae/tratamiento farmacológico , Infecciones por Herpesviridae/epidemiología , Humanos , Incidencia , Intertrigo/fisiopatología , Masculino , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/tratamiento farmacológico , Infecciones por Papillomavirus/epidemiología , Infecciones por Parvoviridae/diagnóstico , Infecciones por Parvoviridae/tratamiento farmacológico , Infecciones por Parvoviridae/epidemiología , Infecciones por Poxviridae/diagnóstico , Infecciones por Poxviridae/tratamiento farmacológico , Infecciones por Poxviridae/epidemiología , Pronóstico , Medición de Riesgo , Índice de Severidad de la Enfermedad , Factores Sexuales , Enfermedades Cutáneas Virales/epidemiología , Enfermedades Cutáneas Virales/patología , Resultado del Tratamiento
19.
J Invest Dermatol ; 121(4): 732-4, 2003 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-14632188

RESUMEN

Brooke-Spiegler syndrome (BSS, familial cylindromatosis or turban tumor syndrome) is an inherited disease characterized by neoplasms of the skin appendages such as cylindroma, trichoepithelioma, and spiradenoma. The disease has been mapped to 16q12-13, and mutations in the CYLD gene have been identified in families with this disorder. Of interest, multiple familial trichoepithelioma (MFT) has been described as a distinct disorder characterized by the familial occurrence of trichoepitheliomas. MFT has been mapped to 9p21; however, to date a candidate gene has not been identified. In this report, we describe a four-generation family with BSS presenting predominantly with trichoepitheliomas (resembling MFT phenotype). We identified a novel missense mutation in the CYLD gene, designated E474G, in the affected individuals of this family. Our findings exemplify clinical heterogeneity within BSS and extend the body of evidence that mutations in CYLD are implicated in this disease. Although not conclusive, these findings suggest that BSS and MFT may represent a single entity.


Asunto(s)
Carcinoma Adenoide Quístico/genética , Carcinoma de Apéndice Cutáneo/genética , Mutación Missense , Neoplasias Cutáneas/genética , Proteínas Supresoras de Tumor/genética , Enzima Desubiquitinante CYLD , Salud de la Familia , Femenino , Humanos , Masculino , Linaje , Fenotipo
20.
Yonsei Med J ; 45(3): 392-5, 2004 Jun 30.
Artículo en Inglés | MEDLINE | ID: mdl-15227724

RESUMEN

The Human Leukocyte Antigen (HLA) typing of large groups of patients with various autoimmune diseases has demonstrated that some HLA alleles occur at higher frequencies in specific diseases than in the general population. Chronic urticaria has been shown to have an autoimmune basis by a previous study which found an association between chronic urticaria and specific HLA groups. We investigated the HLA subtypes of Turkish chronic urticaria patients. For this purpose 42 Turkish patients with chronic urticaria and 115 healthy controls were typed for HLA-DR and DQ by PCR-SSP (Polymerase Chain Reaction Sequence Specific Primers) low resolution DNA technique. We found an increased frequency of DR4 (42.9%, p=0.01) in chronic urticaria patients in comparison with that in healthy controls. This study supports the hypothesis that HLA alleles may be involved in the pathogenesis of chronic urticaria and that they appear to be directly involved in the initiation of the immune response.


Asunto(s)
Antígenos de Histocompatibilidad Clase II/genética , Prueba de Histocompatibilidad , Urticaria/genética , Urticaria/inmunología , Enfermedad Crónica , Antígenos HLA-DQ/genética , Antígenos HLA-DR/genética , Antígeno HLA-DR4/genética , Cadenas HLA-DRB1 , Humanos
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