Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 64
Filtrar
Más filtros

Tipo del documento
Intervalo de año de publicación
1.
BMC Med ; 22(1): 40, 2024 01 29.
Artículo en Inglés | MEDLINE | ID: mdl-38281904

RESUMEN

BACKGROUND: To date, almost no research on the psychosocial implications of albinism has been conducted in France and an exploration of albinism-related experiences could be beneficial, in order to better understand this condition. The aim of this study was to examine how French people with albinism and their parents live with and adapt to this condition in all the areas of their lives. METHODS: Semi-structured phone interviews were conducted with 9 parent-child dyads, each participating separately. Participants were recruited by convenience sampling, thanks to the combined efforts of a patient association (Genespoir) and professionals from the partner medical referral centers involved in the project. Dyads in which the individual with albinism had any comorbidity were excluded. The interviews were then transcribed and subjected to in-depth thematic analysis. Two codebooks were constructed in a mirrored process: one for people with albinism; the other for their parents. They were finally merged at the end of the coding step. RESULTS: Four main categories were identified: personal perceptions and social representations of albinism, difficulties and obstacles encountered by people with albinism, resources and facilitators, and the importance of parent-child functioning. The results indicated that experiences of stigmatization during childhood and adolescence are common and that people with albinism face challenges in adapting to certain obstacles related to their visual impairments (VI) (e.g., inability to drive a car; eye strain...). Parents emerged as one, if not as the main, source of support for people with albinism throughout their development. Although external support systems exist to assist them in various aspects of their lives, some of them primarily rely on their own personal resources to cope. CONCLUSIONS: This research highlights the importance of a systemic and transdisciplinary approach to make sure families receive the support that best meets their needs.


Asunto(s)
Albinismo , Pueblo Europeo , Apoyo Familiar , Padres , Adolescente , Adulto , Humanos , Albinismo/epidemiología , Albinismo/psicología , Pueblo Europeo/psicología , Francia , Padres/psicología , Investigación Cualitativa , Estigma Social , Apoyo Social
2.
Am J Med Genet C Semin Med Genet ; 184(3): 578-589, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32830442

RESUMEN

Overall, approximately one-quarter of patients with genetic eye diseases will receive a molecular diagnosis. Patients with developmental eye disorders face a number of diagnostic challenges including phenotypic heterogeneity with significant asymmetry, coexisting ocular and systemic disease, limited understanding of human eye development and the associated genetic repertoire, and lack of access to next generation sequencing as regarded not to impact on patient outcomes/management with cost implications. Herein, we report our real world experience from a pediatric ocular genetics service over a 12 month period with 72 consecutive patients from 62 families, and that from a cohort of 322 patients undergoing whole genome sequencing (WGS) through the Genomics England 100,000 Genomes Project; encompassing microphthalmia, anophthalmia, ocular coloboma (MAC), anterior segment dysgenesis anomalies (ASDA), primary congenital glaucoma, congenital cataract, infantile nystagmus, and albinism. Overall molecular diagnostic rates reached 24.9% for those recruited to the 100,000 Genomes Project (73/293 families were solved), but up to 33.9% in the clinic setting (20/59 families). WGS was able to improve genetic diagnosis for MAC patients (15.7%), but not for ASDA (15.0%) and congenital cataracts (44.7%). Increased sample sizes and accurate human phenotype ontology (HPO) terms are required to improve diagnostic accuracy. The significant mixed complex ocular phenotypes distort these rates and lead to missed variants if the correct gene panel is not applied. Increased molecular diagnoses will help to explain the genotype-phenotype relationships of these developmental eye disorders. In turn, this will lead to improved integrated care pathways, understanding of disease, and future therapeutic development.


Asunto(s)
Oftalmopatías/diagnóstico , Secuenciación de Nucleótidos de Alto Rendimiento , Patología Molecular , Pediatría/tendencias , Albinismo/diagnóstico , Albinismo/epidemiología , Albinismo/genética , Catarata/diagnóstico , Catarata/epidemiología , Catarata/genética , Niño , Coloboma/diagnóstico , Coloboma/epidemiología , Coloboma/genética , Anomalías del Ojo/diagnóstico , Anomalías del Ojo/epidemiología , Anomalías del Ojo/genética , Oftalmopatías/epidemiología , Oftalmopatías/genética , Femenino , Glaucoma/diagnóstico , Glaucoma/epidemiología , Glaucoma/genética , Humanos , Lactante , Masculino , Mutación/genética , Nistagmo Congénito/diagnóstico , Nistagmo Congénito/epidemiología , Nistagmo Congénito/genética , Reino Unido/epidemiología
3.
Dermatology ; 236(3): 219-227, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31461704

RESUMEN

INTRODUCTION: Oculocutaneous albinism is an autosomal recessive disease caused by complete absence of or decrease in melanin biosynthesis in melanocytes. Due to the reduction or absence of melanin, albinos are highly susceptible to the harmful effects of ultraviolet radiation and are at greater risk of actinic damage and skin cancer. There are no epidemiological data on the incidence of albinism in Brazil. OBJECTIVE: To analyze the clinical and epidemiological profile of patients with albinism treated by the Pró-Albino Program of the Dermatology Clinic of Santa Casa de Misericórdia from its beginning in 2010 until 2017. METHODS: In this cross-sectional study, the records of all consecutive albino patients admitted to the service in the study period were reviewed. Sociodemographic data, family history, and dermatological clinical data were collected. RESULTS: Between March 2010 and April 2017, 191 patients were admitted, of whom 109 were female (57.07%) and the age range was 0-92 years, with >30% under the age of 18 years. Consanguinity among the parents was confirmed by 26% of the patients. Unprotected sun exposure was reported by 109 (57.07%), and 138 (72.25%) had a history of sunburn. Of the 146 records with information, 38 had skin cancer (26%), with a mean age of 47.4 (p < 0.0001); the youngest patient diagnosed with a cutaneous tumor was 23 years old. The prevalence of actinic damage was high. There was information on solar elastosis and actinic keratosis in 148 medical records, of which 96 (64.8%) patients had elastosis and 75 (50.67%) keratoses. Elastosis, keratosis, and skin cancer were significantly associated with age, unprotected sun exposure, and sunburn (p < 0.05). Of the 37 (26% of the sample of 146) patients with a previous or current history of skin cancer, it was possible to identify the histological type in 29 (13 men and 16 women); of these, 18 (62%) were basal cell carcinomas (BCC), 15 (51%) were squamous cell carcinomas (SCC), and 2 (7%) were melanomas. Of these, 4 cases (14%) presented the 2 types of carcinoma (BCC and SCC), and the 2 that had a diagnosis of melanoma also had BCC. Some patients had multiple ulcerated tumors. The tumor site was preferentially in the head and neck (43%), trunk (37%) and limbs (20%). CONCLUSIONS: Albinos represent a risk group for skin cancer and other actinic lesions. These lesions were found to be prevalent in the albinos seen by the program and probably reflect the characteristics found in the Brazilian albino population. Access to health care, especially through multidisciplinary programs that enable the diagnosis and early treatment of these lesions, health education, and the use of photoprotective measures can reduce morbidity and mortality and improve the quality of life of patients with this rare genetic condition.


Asunto(s)
Albinismo/epidemiología , Neoplasias Cutáneas/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Albinismo/complicaciones , Brasil/epidemiología , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Incidencia , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Prevalencia , Neoplasias Cutáneas/etiología , Adulto Joven
4.
BMC Int Health Hum Rights ; 16(1): 20, 2016 08 08.
Artículo en Inglés | MEDLINE | ID: mdl-27501790

RESUMEN

BACKGROUND: Persons with Disabilities (PWDs) are a unique group that are often overlooked in many developing countries due to systemic weaknesses, lack of political commitment and inadequate support from government and non-governmental agencies. The population of these individuals is however steadily on the increase and currently corresponds to 15 % of the world population. Although much data exist on lifestyle and conditions of prisoners with disabilities in the western world, scanty information is available in Africa. In Ghana, there is insufficient data on the occurrence and social characteristics of prisoners with disabilities. The purpose of this current study was therefore to identify the occurrence, types and causes of disabilities among prisoners serving sentences in Ghanaian prisons. METHODS: This study was a descriptive cross-sectional survey conducted in the Male and Female Regional Prisons in Kumasi, Sunyani and the Nsawam Medium Security Prison, from November to December 2011. PWDs were selected by prisons officers and interviewed using structured questionnaires on variables such as socio-demographic characteristics, causes of disabilities and accessibility to recreational facilities. Ethical approval was obtained from the security services and the Committee of Human Research Publications and Ethics (CHRPE) of the School of Medical Sciences, Kwame Nkrumah University of Science and Technology (KNUST). RESULTS: We screened 6114 records of prisoners of which 1852 (30.3 %) were from the Kumasi Central Prisons, 3483 (57 %) from the Nsawam Medium Security and 779 (12.8 %) from the Sunyani Central Prisons. A total of 99 PWDs were identified with the commonest disability being physical, followed by visual, hearing, speech, mental and albinism. Most of the disabilities were caused by trauma (68.8 %) followed by infection (16.7 %), and drug related mental disabilities (6.3 %). Fifty (50.5 %) out of the 99 PWDs were not provided with assistive devices although they admitted the need for such. CONCLUSION: The present study has demonstrated the occurrence and conditions of PWDs in Ghanaian prisons. Major stakeholders including government agencies and other organisations could develop policies that would improve the conditions and livelihood of prisoners with disabilities in Ghana.


Asunto(s)
Personas con Discapacidad , Estado de Salud , Prisiones , Adulto , Albinismo/epidemiología , Estudios Transversales , Femenino , Ghana/epidemiología , Necesidades y Demandas de Servicios de Salud , Trastornos de la Audición/epidemiología , Humanos , Estilo de Vida , Masculino , Trastornos Mentales/epidemiología , Persona de Mediana Edad , Prisioneros , Dispositivos de Autoayuda , Condiciones Sociales , Trastornos del Habla/epidemiología , Encuestas y Cuestionarios , Trastornos de la Visión/epidemiología , Heridas y Lesiones/complicaciones , Adulto Joven
6.
Ann Dermatol Venereol ; 142(6-7): 399-409, 2015.
Artículo en Francés | MEDLINE | ID: mdl-25952794

RESUMEN

BACKGROUND: Leucoderma is a frequent presenting complaint in children and it is sometimes difficult to make a definite diagnostic during the first consultation. The aim of this study is to analyse the diagnoses associated with leucoderma in children in order to propose a practical approach to their differential diagnosis. MATERIAL AND METHODS: We performed a review of the literature using the keywords "leucoderma children review", "leucoderma Ito" and "nevus depigmentosus" in the Medline database. All relevant articles were included. RESULTS: Four hundred and thirty-five articles were retrieved and 179 were analysed. A clinical approach was proposed in 6 articles and investigations in 15 articles. DISCUSSION: Causal diagnosis of leucoderma may frequently be made on clinical grounds by determining the age of onset and distribution of lesions. Nevertheless, some situations require investigation. The literature is limited regarding clinical approaches and examinations in leucoderma. Herein, we present a systematic clinical and laboratory approach to the differential diagnosis of these skin disorders.


Asunto(s)
Hipopigmentación , Anomalías Múltiples/genética , Adolescente , Edad de Inicio , Albinismo/epidemiología , Albinismo/genética , Niño , Preescolar , Diagnóstico Diferencial , Asesoramiento Genético , Enfermedades Genéticas Congénitas/diagnóstico , Enfermedades Genéticas Congénitas/epidemiología , Enfermedades Genéticas Congénitas/genética , Humanos , Hipopigmentación/clasificación , Hipopigmentación/congénito , Hipopigmentación/diagnóstico , Hipopigmentación/etiología , Hipopigmentación/genética , Lactante , Recién Nacido , Discapacidad Intelectual/genética , Mutación , Eliminación de Secuencia , Evaluación de Síntomas , Síndrome
7.
J Eur Acad Dermatol Venereol ; 28(7): 925-32, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23875952

RESUMEN

BACKGROUND: Vitiligo and albinism are two disorders of pigmentation that make the affected African highly visible and strikingly different from their peers. Both pose considerable management challenges, attract significant stigma and profound impairment of quality of life. OBJECTIVE AND METHODS: To determine and compare psychiatric distress in vitiligo and albinism using the Hospital Anxiety and Depression Scale (HADS). Participants were 87 albinos and 102 vitiligo adult patients seen at an urban tertiary hospital in Nigeria between 2004 and 2009. RESULTS: Prevalence of psycho morbidity was 59% (60/102) in vitiligo compared with 26% (23/87) in the albinos. The mean anxiety score was estimated to be 2.55 points lower for albino patients (95% CI: 1.47 to 3.64), and the mean depression score 2.76 points lower (95% CI: 1.84 to 3.68), after adjustment for age, sex and marital status. However, significant differences were not observed when comparing the vitiligo patients with the subset of albino patients with skin cancer. Older patients had significantly higher anxiety and depression scores. Females had significantly higher anxiety scores (but not depression scores) compared to males. Genital involvement in vitiligo was significantly associated with anxiety but not depression. CONCLUSIONS: We found that the African with vitiligo suffers significantly higher psychiatric distress than the African albino on average. Clinical evaluation of these patients would be incomplete without assessment of their psycho morbidity. There is need for increased focus on cancer prevention strategies in the African albino.


Asunto(s)
Albinismo/etnología , Albinismo/psicología , Ansiedad/psicología , Depresión/psicología , Estrés Psicológico/psicología , Vitíligo/etnología , Vitíligo/psicología , Adolescente , Adulto , Factores de Edad , Albinismo/epidemiología , Ansiedad/epidemiología , Depresión/epidemiología , Femenino , Humanos , Estudios Longitudinales , Masculino , Estado Civil , Persona de Mediana Edad , Nigeria/epidemiología , Prevalencia , Estudios Prospectivos , Psicología , Calidad de Vida/psicología , Análisis de Regresión , Factores Sexuales , Estrés Psicológico/epidemiología , Vitíligo/epidemiología , Adulto Joven
8.
J Fr Ophtalmol ; 47(6): 104189, 2024 Jun.
Artículo en Francés | MEDLINE | ID: mdl-38663224

RESUMEN

PURPOSE: To investigate the relationship between refraction and ocular axial length in albinos. PATIENTS AND METHODS: A cross-sectional, analytical study was carried out from June to November 2021 at the Central Hospital of Yaounde (Cameroon), which included consenting albino subjects aged over 15years. All subjects underwent visual acuity testing, axial length measurements and objective refraction under cycloplegia. RESULTS: We included 51 albino subjects. The mean age was 26.06±9.47years, and the sex ratio was 0.5. Type 2 oculocutaneous albinism (OCA2) was predominant, representing 82.4% of cases. The mean uncorrected visual acuity was 0.93±0.25 logMAR, and the most common ametropia was myopic astigmatism (52.9%). The mean axial length was 24.65±2.54mm with extremes of 21.54 and 30.33mm. Eyes with myopia and myopic astigmatism had significantly longer axial lengths than those with hyperopic and mixed astigmatism. A strong, significant negative correlation (r=-0.93; P˂0.001) between the spherical component of the refraction and axial length was found. CONCLUSION: The spherical component of the refraction decreases significantly with increasing axial length in albinos.


Asunto(s)
Longitud Axial del Ojo , Refracción Ocular , Humanos , Masculino , Femenino , Refracción Ocular/fisiología , Adulto , Estudios Transversales , Adulto Joven , Adolescente , Longitud Axial del Ojo/patología , Persona de Mediana Edad , Errores de Refracción/epidemiología , Errores de Refracción/diagnóstico , Errores de Refracción/fisiopatología , Agudeza Visual/fisiología , Camerún/epidemiología , Albinismo/epidemiología , Albinismo/complicaciones , Miopía/diagnóstico , Miopía/epidemiología , Miopía/fisiopatología , Miopía/complicaciones , Miopía/patología , Correlación de Datos
9.
Pediatr Dermatol ; 28(5): 494-501, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21453308

RESUMEN

Skin manifestations are prevalent in primary immunodeficiency disorders (PID). In a large proportion of patients, they manifest as presenting signs and serve as important factors for the early diagnosis of PID. Only a few studies describing the spectrum of skin disorders in PID are available. The objective of the current study was to determine the prevalence and characteristics of skin manifestations in children with PID. Participants were 128 pediatric patients with PID (aged <16 years) registered prospectively over 6 years. Skin manifestations were observed in 61 patients (48%), and those manifestations were the presenting features in 50 (39% of total PID and 82% of those with skin lesions). Skin infections were the most prevalent manifestations, seen in 39 patients (30%), followed by eczemas in 24 (19%). Skin infections were significantly more prevalent in those with congenital defects in phagocyte number, function, or both, as well as in those with well-defined immunodeficiencies. Although widely present in all participants with PID, eczema was a consistent feature (100%) in patients with hyper IgE syndrome and Wiskott-Aldrich syndrome (WAS). Erythroderma of infancy with diffuse alopecia was seen exclusively in patients with severe combined immunodeficiency disorders, telangiectasia in patients with ataxia telangiectasia, and partial albinism with silvery gray hair in those with Chediak-Higashi syndrome. Autoimmune skin manifestations were observed in 6% of reported cases of PID. This study highlights the importance of awareness of skin manifestations of PID to assist in the early diagnosis and management of these disorders.


Asunto(s)
Síndromes de Inmunodeficiencia/epidemiología , Enfermedades de la Piel/epidemiología , Albinismo/epidemiología , Enfermedades Autoinmunes/epidemiología , Síndrome de Chediak-Higashi/epidemiología , Niño , Preescolar , Dermatitis Exfoliativa/epidemiología , Eccema/epidemiología , Femenino , Color del Cabello , Humanos , Incidencia , Lactante , Síndrome de Job/epidemiología , Kuwait/epidemiología , Recuento de Leucocitos , Masculino , Prevalencia , Estudios Prospectivos , Enfermedades Cutáneas Infecciosas/epidemiología , Telangiectasia/epidemiología , Síndrome de Wiskott-Aldrich/epidemiología
10.
World J Surg Oncol ; 8: 73, 2010 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-20738853

RESUMEN

BACKGROUND: Albinism is a genetic disorder characterized by lack of skin pigmentation. It has a worldwide distribution but is commoner in areas close to the equator like Nigeria. Skin cancers are a major risk associated with albinism and are thought to be a major cause of death in African albinos. Challenges faced in the care of these patients need to be highlighted in order to develop a holistic management approach with a significant public health impact. The aim of the study was to determine the pattern of skin cancers seen in Albinos, and to highlight problems encountered in their management. METHOD: Case records of albinos managed in Imo state University teaching Hospital from June 2007 to May 2009 were reviewed. The data obtained was analyzed using descriptive statistics. RESULTS AND DISCUSSION: In the period under review, albinos accounted for 67% of patients managed for primary skin cancers. There were twenty patients with thirty eight (38) lesions. Sixty one percent of the patients were below 40 years. Average duration of symptoms at presentation was 26 months. The commonest reason for late presentation was the lack of funds. Squamous cell carcinoma was the commonest histologic variant. Most patients were unable to complete treatment due to lack of funds. CONCLUSION: Albinism appears to be the most important risk factor in the development of skin cancers in our environment. Late presentation and poor rate of completion of treatment due to poverty are major challenges.


Asunto(s)
Albinismo/epidemiología , Carcinoma de Células Escamosas/epidemiología , Necesidades y Demandas de Servicios de Salud , Neoplasias Cutáneas/epidemiología , Pigmentación de la Piel , Adulto , Anciano , Albinismo/cirugía , Carcinoma de Células Escamosas/cirugía , Femenino , Hospitales de Enseñanza , Humanos , Masculino , Persona de Mediana Edad , Nigeria/epidemiología , Factores de Riesgo , Neoplasias Cutáneas/cirugía , Adulto Joven
11.
Dermatol Online J ; 16(4): 14, 2010 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-20409421

RESUMEN

We evaluated all the albinos with a histologic diagnosis of skin cancer seen in the University of Calabar Teaching Hospital, Calabar, Nigeria, during the 7-year period, (January 2001 to December 2007). The ages, sex, clinical presentation/site(s), number of lesions per patient, type of skin cancer, treatment, outcome and follow up were analyzed. This was compared with the total number of skin cancers. Of the skin cancers diagnosed, 11 percent were in patients with albinism.


Asunto(s)
Albinismo/epidemiología , Carcinoma Basocelular/epidemiología , Melanoma/epidemiología , Neoplasias de Células Escamosas/epidemiología , Neoplasias Cutáneas/epidemiología , Adulto , Carcinoma Basocelular/cirugía , Femenino , Hospitales de Enseñanza , Humanos , Masculino , Melanoma/cirugía , Persona de Mediana Edad , Neoplasias de Células Escamosas/cirugía , Nigeria/epidemiología , Factores de Riesgo , Neoplasias Cutáneas/cirugía , Adulto Joven
12.
Int J Dermatol ; 59(9): 1125-1131, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32530079

RESUMEN

BACKGROUND: People with albinism (PWA) are at increased risk of photodamage and skin cancer. In many parts of Africa, there is a significant lack of knowledge regarding albinism which can lead to societal stigma, discrimination, and persecution from an early age. In the Democratic Republic of Congo (DRC), there is limited clinical data on PWA and skin cancer. We aim to better understand sociodemographics, risk factors, clinical features, and outcomes of this population. METHODS: Patients with a diagnosis of albinism and skin cancer presenting to Kisangani Albino Clinic were enrolled. RESULTS: Of 205 PWA, 61 patients were diagnosed with skin cancer with a mean age of 26.5 years. Common occupations were student (45.6%) or unemployed (26.4%). Discrimination was experienced from close contacts (24.4%) and society (67.4%). A majority (88.5%) had never used sunscreen, only 4.9% used fully sun protective clothing, and 90.2% spent 4 or more hours in the sun daily. Skin cancers had a mean size of 3.8 cm and were most commonly located on the face (47.7%). Squamous cell carcinoma was the most common histopathological diagnosis. Most patients underwent excision, and 90.2% had clinical clearance of tumors at a mean follow-up of 5.7 months. CONCLUSION: People living with albinism in the DRC experience a high rate of nonmelanoma skin cancers at a young age and additionally face a number of psychosocial challenges. This study represents the first attempt to analyze a cohort of patients with albinism from the DRC and serves to increase awareness of this vulnerable population.


Asunto(s)
Albinismo , Neoplasias Cutáneas , Adulto , Albinismo/epidemiología , República Democrática del Congo/epidemiología , Humanos , Neoplasias Cutáneas/epidemiología , Protectores Solares/uso terapéutico , Resultado del Tratamiento
13.
Pan Afr Med J ; 35: 127, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32637025

RESUMEN

INTRODUCTION: Sickle Cell Disease (SCD) and albinism are both recessive hereditary diseases in human kind with a high prevalence in sub-Saharan Africa. This study aimed to determinate the prevalence of sickle cell trait in people living with albinism (PLA). METHODS: a cross-sectional descriptive survey was conducted in PLA attending the "Hôpital du Cinquantenaire de Kisangani". In total, by non-probabilistic convenience sampling, 82 albinos and 139 non-albinos and without any antecedents of albinism in their family were included, selected from students in the Faculty of Medicine and Pharmacy at the University of Kisangani. Blood samples were collected on "dried blood spot" and analyzed by mass spectrometry at CHU of Liège. Data were entered into an Excel file and analysed on SPSS 20.0 (Chicago, IL). RESULTS: forty-six of the 82 albinos (56.1%) were female and 43.9% male with a sex ratio of 1.28. Among albinos, 18.3% had hemoglobin AS (HbAS) and 81.7% hemoglobin AA (HbAA) compared to 18% of subjects with hemoglobin AS and 82% hemoglobin AA in the control group. The difference was not statistically significant (Chi-square=0.003, ddl=1, p=0.9544). CONCLUSION: this study highlighted that the prevalence of the sickle cell trait is high among people living with albinism, but does not differ from that observed in non-albinos in the Democratic Republic of the Congo. It is therefore important to raise awareness among this category of people about sickle cell disease and the importance of its premarital screening.


Asunto(s)
Albinismo/epidemiología , Rasgo Drepanocítico/epidemiología , Adolescente , Adulto , Niño , Preescolar , Estudios Transversales , República Democrática del Congo/epidemiología , Femenino , Humanos , Lactante , Masculino , Persona de Mediana Edad , Prevalencia , Encuestas y Cuestionarios , Adulto Joven
14.
An Bras Dermatol ; 94(5): 503-520, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31777350

RESUMEN

Oculocutaneous albinism is an autosomal recessive disease caused by the complete absence or decrease of melanin biosynthesis in melanocytes. Due to the reduction or absence of melanin, albinos are highly susceptible to the harmful effects of ultraviolet radiation and are at increased risk of actinic damage and skin cancer. In Brazil, as in other parts of the world, albinism remains a little known disorder, both in relation to epidemiological data and to phenotypic and genotypic variation. In several regions of the country, individuals with albinism have no access to resources or specialized medical care, and are often neglected and deprived of social inclusion. Brazil is a tropical country, with a high incidence of solar radiation during the year nationwide. Consequently, actinic damage and skin cancer occur early and have a high incidence in this population, often leading to premature death. Skin monitoring of these patients and immediate therapeutic interventions have a positive impact in reducing the morbidity and mortality associated with this condition. Health education is important to inform albinos and their families, the general population, educators, medical professionals, and public agencies about the particularities of this genetic condition. The aim of this article is to present a review of the epidemiological, clinical, genetic, and psychosocial characteristics of albinism, with a focus in skin changes caused by this rare pigmentation disorder.


Asunto(s)
Albinismo/genética , Albinismo/patología , Albinismo/complicaciones , Albinismo/epidemiología , Brasil/epidemiología , Carcinoma Basocelular/etiología , Carcinoma Basocelular/patología , Carcinoma de Células Escamosas/etiología , Carcinoma de Células Escamosas/patología , Femenino , Humanos , Queratosis Actínica/etiología , Queratosis Actínica/patología , Masculino , Melaninas/deficiencia , Prevalencia , Factores de Riesgo , Neoplasias Cutáneas/etiología , Neoplasias Cutáneas/fisiopatología , Rayos Ultravioleta/efectos adversos
15.
J Child Neurol ; 22(12): 1342-7, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18174549

RESUMEN

Attention-deficit/hyperactivity disorder (ADHD) is a common diagnosis in children and adults. Human albinism is an uncommon genetic condition associated with visual impairment that may affect behavior. To determine if there is a relationship between albinism and ADHD, the prevalence of ADHD was examined among 78 children (age range, 4-18 years) and among 44 adults (age range, 19-79 years) with ocular or oculocutaneous albinism. ADHD was diagnosed in the pediatric population using a combination of Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) criteria, Conners' Parent Rating Scale, and physician observation. Adults were diagnosed using the Utah criteria for ADHD as confirmed by physician history and interview. Seventeen children (22.7% [17 of 75]) (3 children with existing diagnoses of pervasive developmental disorder were identified but were not included in the data analysis) and 3 adults (6.8%) met the criteria for ADHD. The combined hyperactivity and impulsivity subtype of ADHD was most common, accounting for 50% of the diagnoses. Binocular best-corrected visual acuity and genetic type of albinism were not found to correlate with a diagnosis of ADHD. The prevalence of ADHD among children and adults with albinism is more frequent than that reported among the general population and is not related to binocular best-corrected visual acuity.


Asunto(s)
Albinismo/epidemiología , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Adolescente , Adulto , Factores de Edad , Anciano , Albinismo/psicología , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/psicología , Niño , Preescolar , Estudios de Cohortes , Comorbilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Minnesota/epidemiología , Padres/psicología , Prevalencia , Encuestas y Cuestionarios
16.
Int J Oral Maxillofac Surg ; 34(2): 149-51, 2005 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15695043

RESUMEN

Lip cancer, relatively common among fair-skinned males, is uncommon among Black-skinned males. In a 10-year review period of 358 Black African patients with orofacial squamous cell carcinoma, 3.9% (n = 14) were found on the lip with a male to female ratio of 2.5:1. Fifty percent (n = 7) of the patients were albinos and two were children with xeroderma pigmentosum. The lower lip was most commonly affected (78.6%). The well-differentiated and moderately differentiated histopathologic types each comprised 42.9% of the lesions. Alcohol consumption and tobacco usage was admitted to in 42.9% (n = 6) of the patients.


Asunto(s)
Carcinoma de Células Escamosas/epidemiología , Neoplasias de los Labios/epidemiología , Adolescente , Adulto , Factores de Edad , Anciano , Albinismo/epidemiología , Consumo de Bebidas Alcohólicas/epidemiología , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Factores Sexuales , Fumar/epidemiología , Xerodermia Pigmentosa/epidemiología , Zimbabwe/epidemiología
17.
Surv Ophthalmol ; 30(2): 75-101, 1985.
Artículo en Inglés | MEDLINE | ID: mdl-3934778

RESUMEN

Albinism is the term applied to a heterogeneous group of genetically determined disorders characterized by hypopigmentation and affecting the eyes. After describing the clinical features of albinism in general, the authors discuss the various forms of oculocutaneous albinism, ocular albinism, and albinoidism that are of interest to the ophthalmologist. Emphasis is placed on the ocular features of each form. The visual pathway abnormalities and the clinical management of albinism are discussed.


Asunto(s)
Albinismo/patología , Albinismo/clasificación , Albinismo/epidemiología , Albinismo/fisiopatología , Animales , Vías Auditivas/fisiopatología , Síndrome de Chediak-Higashi/diagnóstico , Síndrome de Chediak-Higashi/patología , Síndrome de Chediak-Higashi/fisiopatología , Color , Potenciales Evocados Visuales , Oftalmopatías/patología , Femenino , Fóvea Central/patología , Trastornos Hemorrágicos/complicaciones , Humanos , Masculino , Melaninas/biosíntesis , Melaninas/metabolismo , Monofenol Monooxigenasa/metabolismo , Nistagmo Fisiológico , Trastornos por Fotosensibilidad/terapia , Embarazo , Diagnóstico Prenatal , Piel , Enfermedades de la Piel/patología , Neoplasias Cutáneas/complicaciones , Neoplasias Cutáneas/prevención & control , Agudeza Visual , Vías Visuales/fisiopatología
19.
Rev Epidemiol Sante Publique ; 28(1): 81-8, 1980 Apr 30.
Artículo en Francés | MEDLINE | ID: mdl-7465914

RESUMEN

Oculocutaneous albinism is a hereditary disease with a high incidence in Cameroon. The author has examined 216 cases. Most of them (70 per cent) are in Bamileke group where exist a great imbreeding tendency.


Asunto(s)
Albinismo/epidemiología , Adolescente , Adulto , Anciano , Albinismo/genética , Población Negra , Camerún , Niño , Etnicidad , Femenino , Homocigoto , Humanos , Masculino , Persona de Mediana Edad
20.
Yi Chuan Xue Bao ; 21(3): 169-72, 1994.
Artículo en Zh | MEDLINE | ID: mdl-7917429

RESUMEN

Segregation analysis and consanguinity analysis were applied to 37 albinism families ascertained from Shandong province (P. R. China) to study the genetic heterogeneity of the disease. Our results show that albinism is an autosomal recessive disease with multilocus. The least number of the detrimental loci is 8, The average frequence of detrimental genes is 0.0023, and 3.83% individuals in general population are carriers. The incidence among the offsprings of the first cousin marriages would be 22 times higher than that in the general population.


Asunto(s)
Albinismo/epidemiología , Albinismo/genética , China/epidemiología , Consanguinidad , Femenino , Frecuencia de los Genes , Genes Recesivos , Humanos , Masculino
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA