Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 93
Filtrar
Mais filtros

Intervalo de ano de publicação
1.
Am J Dermatopathol ; 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38718195

RESUMO

ABSTRACT: The authors present a singular case of Sweet syndrome (acute febrile neutrophilic dermatosis) manifesting with an unusual herpetiform clinical presentation, underscoring the imperative for its inclusion in differential diagnoses of herpetic infections. A 26-year-old female patient with a systemic lupus erythematosus history presented with facial edema, hyperthermia, cephalalgia, and polyarticular pain. Dermatological examination revealed clustered, vesicle-like papules on erythematous, edematous skin, mimicking herpetic infection. Elevated acute-phase reactants and urine anomalies were noted. Histopathology confirmed Sweet syndrome, characterized by superficial and deep neutrophilic dermatitis, karyorrhexis, and papillary dermal edema. The patient responded to corticosteroid therapy and a brief antibiotic course, resolving both systemic and cutaneous symptoms. This case is remarkable for its atypical herpetiform presentation, a clinical rarity in Sweet syndrome, challenging the conventional diagnostic process. It emphasizes the necessity of considering Sweet syndrome in differential diagnoses when encountering herpetiform lesions, particularly in patients with autoimmune backgrounds. This case contributes significantly to the understanding of Sweet syndrome's clinical variability and highlights the critical role of thorough clinicopathological evaluation in achieving accurate diagnosis in complex dermatological disorders.

2.
Am J Dermatopathol ; 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38842357

RESUMO

ABSTRACT: Pseudolymphomatous cutaneous angiosarcoma (cAS) is a rare subtype characterized by a prominent lymphocytic infiltrate, posing diagnostic challenges due to its resemblance to lymphoid neoplastic processes. We present a novel case highlighting the clinical and histopathological features, notably its association with persistent firm facial edema in a patient with systemic sclerosis (SSc). A 47-year-old woman with a 21-year history of SSc presented with firm palpebral edema evolving to involve the entire face and cervical region over six months. Diagnostic imaging revealed inflammatory changes in orbital regions, supradiaphragmatic lymphadenopathies, and lytic lesions. Skin biopsy demonstrated a diffuse neoplasm with vascular channels and solid areas, accompanied by dense lymphocytic proliferation. Pseudolymphomatous cutaneous angiosarcoma, a rare malignant neoplasm, exhibits variable clinical presentations and rapid progression. Histologically, it manifests as irregularly shaped vascular channels lined by prominent endothelial cells. Immunohistochemistry, particularly markers such as v-ets erythroblastosis virus E26 oncogene homolog (avian) (ERG), aids in diagnosis. Notably, this case marks the first presentation of cAS with persistent facial edema in SSc, highlighting the association between SSc and cancer risk. This case underscores the diagnostic challenges posed by cAS and emphasizes the importance of early detection for optimal patient outcomes. Further understanding of its association with autoimmune disorders such as SSc is crucial for comprehensive management strategies.

3.
Am J Dermatopathol ; 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38842395

RESUMO

ABSTRACT: A 65-year-old woman presented with unexplained weight loss, recurrent fever, and a dermatosis with painful nodules on the extremities. Biopsies showed focal lobular panniculitis with neutrophilic microgranulomas. Comprehensive investigations ruled out infection and hematologic and solid organ neoplasms. Laboratory results showed anti-Ro/SSA and anti-La/SSB antibody positivity, and elevated inflammatory markers. Dry mouth and eye were confirmed. The diagnosis of Sjögren syndrome with cutaneous panniculitis was established. Prednisone treatment with 30 mg/d resulted in remission of fever and pain improvement. This case emphasizes Sjögren syndrome as an autoimmune disease with multiple cutaneous manifestations and highlights its association with granulomatous panniculitis.

4.
BMC Genomics ; 22(1): 19, 2021 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-33407114

RESUMO

BACKGROUND: Several conventional genomic Bayesian (or no Bayesian) prediction methods have been proposed including the standard additive genetic effect model for which the variance components are estimated with mixed model equations. In recent years, deep learning (DL) methods have been considered in the context of genomic prediction. The DL methods are nonparametric models providing flexibility to adapt to complicated associations between data and output with the ability to adapt to very complex patterns. MAIN BODY: We review the applications of deep learning (DL) methods in genomic selection (GS) to obtain a meta-picture of GS performance and highlight how these tools can help solve challenging plant breeding problems. We also provide general guidance for the effective use of DL methods including the fundamentals of DL and the requirements for its appropriate use. We discuss the pros and cons of this technique compared to traditional genomic prediction approaches as well as the current trends in DL applications. CONCLUSIONS: The main requirement for using DL is the quality and sufficiently large training data. Although, based on current literature GS in plant and animal breeding we did not find clear superiority of DL in terms of prediction power compared to conventional genome based prediction models. Nevertheless, there are clear evidences that DL algorithms capture nonlinear patterns more efficiently than conventional genome based. Deep learning algorithms are able to integrate data from different sources as is usually needed in GS assisted breeding and it shows the ability for improving prediction accuracy for large plant breeding data. It is important to apply DL to large training-testing data sets.


Assuntos
Aprendizado Profundo , Modelos Genéticos , Animais , Teorema de Bayes , Genoma , Genômica , Fenótipo , Seleção Genética
5.
Chem Res Toxicol ; 34(7): 1738-1748, 2021 07 19.
Artigo em Inglês | MEDLINE | ID: mdl-34142820

RESUMO

Cutaneous drug-induced reactions are immune-mediated responses that can lead to life-threatening diseases such as drug reaction with eosinophilia and systemic symptoms (DRESS), Stevens-Johnson syndrome, and toxic epidermal necrolysis, collectively known as severe cutaneous adverse reactions (SCARs). Unfortunately, they cannot be predicted during drug development, and, at present, a prognostic biomarker is not available nor are validated in vitro assays for diagnosis. Thus, by using proteomic and microarray miRNA analysis, the cargo of extracellular vesicles obtained from SCARs patients was analyzed and correlated with the severity of the reaction. Confirmatory assays using Western blot and qRT-PCR were performed to validate findings, and bioinformatic tools were used to establish the correlation between protein and miRNAs expression between groups. The proteomic analysis showed an increase in the amount of pro-inflammatory proteins, von Willebrand factor, and C-reactive protein and a decrease in anti-inflammatory and protective proteins in the SCARs group compared with the control group. Additionally, histone protein H2A was enriched in DRESS patients. APO1 and SERPINA4 proteins, highly increased in the control group but absent in the SCARs group, are the target of several overexpressed miRNAs, suggesting that the regulation of these proteins might involve gene silencing and protein repressing mechanisms in the severe patients. According with previous reports showing its presence in plasma and T-cells, microRNA miR-18 was upregulated in extracellular vesicles obtained from the most severe patients. Determination of the unique cargo associated with different disease conditions will help to understand the pathophysiology of these complex reactions and might help to develop novel biomarkers for life-threatening iatrogenic cutaneous disease.


Assuntos
Toxidermias/genética , Vesículas Extracelulares/genética , MicroRNAs/genética , Toxidermias/diagnóstico , Vesículas Extracelulares/química , Vesículas Extracelulares/patologia , Humanos , Proteoma/análise , Proteoma/genética , Proteômica , Transcriptoma
6.
Clin Exp Rheumatol ; 39(3): 463-470, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32573409

RESUMO

OBJECTIVES: Cutaneous involvement is an extra-articular manifestation of rheumatoid arthritis (RA). This includes nail abnormalities, which are often overlooked. We described nail findings in RA patients currently attending an early arthritis cohort (n=145), and associated them with disease activity and/or damage, as well as patient-reported outcomes. METHODS: A standardised nail examination was performed in 122 patients (84.1% of the cohort), concomitant to the rheumatic assessment. Disability, quality of life and perceived nail-related health were also assessed. Nail findings and their location were recorded and classified according to standardised definitions. Logistic and linear regression models were used to investigate predictors of nail findings and to identify the impact of toenail findings on disability, which was evaluated with the HAQ. Patients consented to participate. RESULTS: Patients were primarily middle-aged females, with median follow-up of 9 years, and had disease under control. Most patients (62.3%) had at least one nail finding and these patients scored lower their nail-related health. The median (IQR) of findings/abnormalities per patient was 3 (2-5) and the number of nails affected per patient was 10 (2-12). Age (OR: 1.04, 95%CI: 1.007-1.074) and erosive disease (OR: 2.26, 95%CI: 1.1-5.1) were associated with nail findings. Toenail involvement was consistently associated with HAQ score out of normal range (OR=3.4, 95%CI=1.24-9.35, p=0.02). There was a linear association between the number of toenails affected and the HAQ score. CONCLUSIONS: Nail abnormalities are common and heterogeneous findings in RA patients; they are associated with erosive damage and impact disability.


Assuntos
Artrite Reumatoide , Unhas Malformadas , Artrite Reumatoide/diagnóstico por imagem , Artrite Reumatoide/epidemiologia , Estudos Transversais , Avaliação da Deficiência , Feminino , Humanos , Pessoa de Meia-Idade , Unhas/diagnóstico por imagem , Unhas Malformadas/diagnóstico por imagem , Unhas Malformadas/epidemiologia , Unhas Malformadas/etiologia , Qualidade de Vida , Índice de Gravidade de Doença
7.
Gac Med Mex ; 156(Supl): 1-14, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32484168

RESUMO

The development and marketing of biosimilars opens a new scenario in the treatment of many pathologies, including psoriasis. This article reflects the position of the Mexican Academy of Dermatology (AMD) on the use of biosimilar medicines for the treatment of psoriasis in Mexico. In summary, the AMD estates that there is sufficient evidence to accept comparability of pharmacokinetics and pharmacodynamics of some biosimilar medicines to adalimumab, infliximab and etanercept; this evidence does not sufficiently support interchangeability or indication extrapolation. It is essential to establish a close pharmacovigilance not only to guarantee compliance with the Cofepris rules in Mexico, but also to facilitate the effective monitoring of the adverse effects of biosimilar medicines. Although the goal of biotechnological drugs is to achieve substantial savings for patients and public institutions, no economic criteria should prevail over rigorous scientific criteria that guarantee maximum therapeutic efficacy and optimum safety for patients.


El desarrollo y comercialización de biocomparables abre un nuevo escenario en el tratamiento de muchas patologías, entre ellas la psoriasis. El presente artículo recoge la postura de la Academia Mexicana de Dermatología (AMD) respecto al uso de medicamentos biocomparables para el tratamiento de la psoriasis en México. En resumen, la AMD establece que existe suficiente evidencia para aceptar la comparabilidad farmacocinética y farmacodinámica entre algunos medicamentos biocomparables al adalimumab, el infliximab y el etanercept; esta evidencia no sustenta suficientemente su intercambiabilidad ni la extrapolación de indicaciones; es fundamental establecer una farmacovigilancia estrecha no solo para garantizar el cumplimiento de las reglas de la Comisión Federal para la Protección contra Riesgos Sanitarios en México, sino para facilitar un seguimiento efectivo de los efectos adversos de los medicamentos biocomparables. Si bien la meta de los medicamentos biotecnológicos es lograr un ahorro sustancial para los pacientes y las instituciones públicas, los criterios económicos no deben anteponerse a criterios científicos rigurosos que garanticen la máxima eficacia terapéutica y la óptima seguridad para los pacientes.


Assuntos
Medicamentos Biossimilares/administração & dosagem , Fármacos Dermatológicos/administração & dosagem , Psoríase/tratamento farmacológico , Adalimumab/administração & dosagem , Adalimumab/efeitos adversos , Medicamentos Biossimilares/efeitos adversos , Medicamentos Biossimilares/uso terapêutico , Fármacos Dermatológicos/efeitos adversos , Fármacos Dermatológicos/farmacocinética , Dermatologia , Aprovação de Drogas , Etanercepte/administração & dosagem , Etanercepte/efeitos adversos , Humanos , Infliximab/administração & dosagem , Infliximab/efeitos adversos , México , Farmacovigilância
8.
Cytokine ; 119: 95-112, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30903869

RESUMO

We compared the chemokine/receptor expression in skin biopsies of discoid (SLE/DLE) and subacute lupus (SLE/SCLE) and correlated it with tissue and circulating effector CD4 T cells/regulatory cells. Skin biopsies and peripheral blood from 9 active SLE/DLE patients, 9 SLE/SCLE patients, 5 control SLE patients without cutaneous lesions and 10 control healthy donors were included. Clinical skin activity was measured by Cutaneous Lupus Erythematosus Disease Area and Severity Index scoring, and systemic activity was measured by a modified SLEDAI-2K excluding the cutaneous items. Pain and pruritus were evaluated by a 10-point visual analogue scale. To determine the frequencies of CXCL-10/CXCR3-, CCL2/CCR2-, CCL17/CCR4-, CCL20/CCR6-, CCL27/CCR10-, CXCL8/CXCR1-, CXCL13/CXCR5-, IL-22-, CD4/IL-17A-, CD4/IL-4-, CD4/IFN-γ-, CD123/IDO-, CD25/Foxp3-, and CD20/IL-10-expressing cells, double immunostaining procedures were performed. Circulating CD4+/CD161-/IL-22+, CD4+/CD161+/IL-17+, CD4+/CD25-/IL-4+, CD4+/CD25-/IFN-γ+, CD4+/CD25hi/Foxp3+, CD3+/CD19+/CD38hi/IL-10+, and CD123+/CD196+/IDO + cells were analyzed by flow cytometry. RESULTS: In the tissue, CXCL10, CXCR5, and CCL20 expression and IL-22+, CD4+/IL-17+, CD4+/IFN-γ + and CD123+/IDO + cell percentages were increased in SLE/DLE versus SLE/SCLE. Circulating CD4+/CD161-/IL-22+, CD4+/CD161+/IL-17+, CD4+/CD25-/IFN-γ+, CD19+/CD38hi/IL-10 + and CD123+/CD196+/IDO + cell percentages were higher in SLE/DLE versus SLE/SCLE. In the tissue, we found positive correlations between CXCR3 and CD4+/IL-17 + cells; CCR2 and CD4+/IFN-γ + cells; and CCR10 and CD123+/IDO + cells in the SLE/DLE patients and between CXCL13 and CD20+/IL-10 + cells in the SLE/SCLE patients. In the peripheral blood, we determined positive correlations between CXCR5 and CD4+/CD25-/IFN-γ + cells; CCL17 and CD4+/CD161-/IL-22 + cells; and CCL17 and CD4+/CD161+/IL-17 + cells in the SLE/DLE patients and between CXCR5 and CD3+/CD19+/CD38hi/IL-10 + cells; CCR2 and CD4+/CD25hi/Foxp3 + cells; and CXCR1 and CD4+/CD25hi/Foxp3 + cells in the SLE/SCLE patients. Positive correlations between the pain score and the expression of CCL2 and CCR6 expression were found in the SLE/SCLE patients. In conclusion, the correlations between the expression of chemokines/receptors and subpopulations of effector/regulatory cells showed differential responses among the cutaneous pathologies.


Assuntos
Linfócitos T CD4-Positivos/imunologia , Quimiocinas/imunologia , Lúpus Eritematoso Cutâneo/imunologia , Lúpus Eritematoso Discoide/imunologia , Pele/imunologia , Linfócitos T Reguladores/imunologia , Adulto , Idoso , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
9.
Mediators Inflamm ; 2019: 5049245, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-32082077

RESUMO

BACKGROUND: The role of miRNAs in the pathogenesis of cutaneous lupus has not been studied. OBJECTIVE: It was to assess the levels of a selected panel of circulating miRNAs that could be involved in the regulation of the immune response, inflammation, and fibrosis in cutaneous lupus. METHODS: It was a cross-sectional study. We included 22 patients with subacute (SCLE) and 20 with discoid (DLE) lesions, and 19 healthy donors (HD). qRT-PCR for miRNA analysis, flow cytometry in peripheral blood, and skin immunohistochemistry were performed to determine the distribution of CD4 T cells and regulatory cells and their correlation with circulating miRNAs. RESULTS: miR-150, miR-1246, miR-21, miR-23b, and miR-146 levels were downregulated in SCLE vs. HD. miR-150, miR-1246, and miR-21 levels were downregulated in DLE vs. HD. miR-150, miR-1246, and miR-21 levels were downregulated in DLE γ + with miR-1246 in SCLE, whereas CD123+/CD196+/IDO+ cells were positively associated with miR-150 in DLE. In the tissue, CD4+/IL-4+ and CD20+/IL-10+ cells were positively associated with miR-21 and CD4+/IFN-γ + with miR-1246 in SCLE, whereas CD123+/CD196+/IDO+ cells were positively associated with miR-150 in DLE. In the tissue, CD4+/IL-4+ and CD20+/IL-10+ cells were positively associated with miR-21 and CD4+/IFN-ß, thyroid hormone, and cancer signaling pathways were shared between miR-21, miR-31, miR-23b, miR-146a, miR-1246, and miR-150. CONCLUSIONS: A downregulation of miR-150, miR-1246, and miR-21 in both CLE varieties vs. HD. miR-150, miR-1246, and miR-21 levels were downregulated in DLE.


Assuntos
Lúpus Eritematoso Cutâneo/metabolismo , Lúpus Eritematoso Cutâneo/patologia , MicroRNAs/metabolismo , Adulto , Estudos Transversais , Feminino , Citometria de Fluxo , Humanos , Imuno-Histoquímica , Leucócitos Mononucleares/metabolismo , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase em Tempo Real , Pele/metabolismo , Pele/patologia
10.
Rev Argent Microbiol ; 51(3): 247-250, 2019.
Artigo em Espanhol | MEDLINE | ID: mdl-30551810

RESUMO

One hundred sequential, epidemiologically unrelated carbapenem-resistant- Acinetobacter baumannii isolates from 11 hospitals in 10 Argentine provinces were collected between January and August 2016. Genes coding for Ambler class D and B carbapenemases were investigated by PCR using specific primers. All isolates were typed using the 3-locus sequence typing and blaOXA-51-like sequence-based typing techniques. The blaOXA-23 gene was recovered in all isolates studied. The population of carbapenem-resistant- A. baumannii in Argentina was principally associated with ST1 (45%), ST25 (34%) and ST79 (15%). ST25 was recovered in all the regions studied and CC2 was not detected.


Assuntos
Infecções por Acinetobacter/microbiologia , Acinetobacter baumannii/isolamento & purificação , Proteínas de Bactérias/genética , Carbapenêmicos/farmacologia , Infecção Hospitalar/microbiologia , Resistência beta-Lactâmica , beta-Lactamases/genética , Infecções por Acinetobacter/epidemiologia , Acinetobacter baumannii/efeitos dos fármacos , Acinetobacter baumannii/enzimologia , Acinetobacter baumannii/genética , Argentina/epidemiologia , Infecção Hospitalar/epidemiologia , Humanos
11.
Chem Res Toxicol ; 31(6): 454-461, 2018 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-29644860

RESUMO

Dysregulation in the expression of microRNAs (miRNAs), single-stranded RNAs which regulate gene expression, has been associated with diseases such as Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN), although their cellular origin has not been explored. Thus, the focus of this work was to study expression patterns of reported miRNAs involved in T-cell activation following drug-specific stimulation in peripheral blood mononuclear cells (PBMCs) and drug-specific CD4+ T-cell clones (TCC) from patients with different cutaneous manifestations of delayed-type drug hypersensitivity reactions. CD4+ T-cells from hypersensitive patients were stimulated to proliferate, secreted cytokines (IFN-γ and IL-22), cytolytic molecules (Granzyme B) and up-regulate miRNAs 24 to 48 h after drug exposure. Carbamazepine-specific CD4+ T-cells that proliferated to the greatest extent and secreted the highest levels of IFN-γ showed an up-regulation of miR-18a and miR-155. In contrast, piperacillin-specific CD4+ T-cells displaying high expression of miR-9 and miR-21 showed an association with the extent of proliferation, but not IFN-γ secretion. MiR-155 up-regulation was detected in PBMCs from all hypersensitive patients 24 h after drug treatment, while miR-18a and miR-21 expression was up-regulated after 48 h. These findings demonstrate that miRNAs are expressed during drug-specific CD4+ T-cell activation and shows a new regulation path for drug hypersensitivity reactions.


Assuntos
Linfócitos T CD4-Positivos/efeitos dos fármacos , MicroRNAs/genética , Regulação para Cima , Adulto , Linfócitos T CD4-Positivos/metabolismo , Carbamazepina/farmacologia , Citocinas/metabolismo , Hipersensibilidade a Drogas/genética , Feminino , Humanos , Lamotrigina/farmacologia , Ativação Linfocitária , Masculino , Pessoa de Meia-Idade , Piperacilina/farmacologia , Sulfametoxazol/farmacologia
12.
Am J Dermatopathol ; 40(1): 52-56, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28746054

RESUMO

The cutaneous and oral lesions related to nutritional deficiencies are scarcely reported. Micronutrient deficiencies may significantly affect mouth mucosa and skin, causing great morbidity. We report an extraordinary case with detailed clinical and microscopic findings affecting the oral cavity and skin. Physicians must be familiar with these manifestations to suspect the diagnosis.


Assuntos
Desnutrição/complicações , Obesidade/complicações , Úlceras Orais/etiologia , Dermatopatias/etiologia , Humanos , Masculino , Úlceras Orais/patologia , Dermatopatias/patologia , Adulto Jovem
13.
Telemed J E Health ; 24(11): 861-869, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29393769

RESUMO

OBJECTIVES: The purpose of this study was to describe access and health-related use of the Internet and cell phones, and attitudes toward patient portals among a predominantly Hispanic patient population residing along the U.S.-Mexico border. METHODS: A bilingual cross-sectional survey was conducted in two clinics to describe use and attitudes toward use of Web 2.0 technology for health-related activities. Univariate and multivariable analyses were conducted to identify factors associated with past Web 2.0 use and willingness to use these technologies in the future. RESULTS: Two hundred and one participants were recruited (response rate: 53.3%). Respondents had an average age of 61.5 years, were predominantly female (63.2%), Hispanic (71.6%), of low income (93.0% <$25,000), and low educational attainment (49.8%

Assuntos
Atitude Frente aos Computadores , Internet , Americanos Mexicanos/psicologia , Portais do Paciente , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Telefone Celular , Estudos Transversais , Registros Eletrônicos de Saúde , Feminino , Disparidades em Assistência à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Mídias Sociais , Inquéritos e Questionários , Adulto Jovem
14.
Prev Med ; 91: 273-280, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27575314

RESUMO

Colorectal cancer (CRC) is the second leading cause of cancer deaths in the USA. Screening is widely recommended but underutilized, particularly among the low income, the uninsured, recent immigrants and Hispanics. The study objective was to determine the effectiveness of a comprehensive community-wide, bilingual, CRC screening intervention among uninsured predominantly Hispanic individuals. This prospective study was embedded in a CRC screening program and utilized a quasi-experimental design. Recruitment occurred from Community and clinic sites. Inclusion criteria were aged 50-75years, uninsured, due for CRC screening, Texas address and exclusions were a history of CRC, or recent rectal bleeding. Eligible subjects were randomized to either promotora (P), video (V), or combined promotora and video (PV) education, and also received no-cost screening with fecal immunochemical testing or colonoscopy and navigation. The non-randomly allocated controls recruited from a similar county, received no intervention. The main outcome was 6month self-reported CRC screening. Per protocol and worst case scenario analyses, and logistic regression with covariate adjustment were performed. 784 subjects (467 in intervention group, 317 controls) were recruited; mean age was 56.8years; 78.4% were female, 98.7% were Hispanic and 90.0% were born in Mexico. In the worst case scenario analysis (n=784) screening uptake was 80.5% in the intervention group and 17.0% in the control group [relative risk 4.73, 95% CI: 3.69-6.05, P<0.001]. No educational group differences were observed. Covariate adjustment did not significantly alter the effect. A multicomponent community-wide, bilingual, CRC screening intervention significantly increased CRC screening in an uninsured predominantly Hispanic population.


Assuntos
Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/métodos , Hispânico ou Latino , Programas de Rastreamento/métodos , Pessoas sem Cobertura de Seguro de Saúde , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sangue Oculto , Pobreza , Estudos Prospectivos , Texas
15.
J Cutan Pathol ; 43(11): 1062-1066, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27514363

RESUMO

Pemphigus is a group of autoimmune intraepidermal bullous diseases; being pemphigus foliaceus (PF) and pemphigus vulgaris (PV) the most common subtypes. Pustular variants are scarcely reported for both PV and PF. The purpose of this manuscript was to describe the clinical, microscopic and immunologic findings of an atypical case of PF presenting with pustules, including a review of the literature. PF is described as blisters and because this entity is rare, it is not known for the general medical community that they are other clinical features that can be seen as this one we present here with pustules.


Assuntos
Dapsona/administração & dosagem , Neutrófilos/patologia , Pênfigo/diagnóstico , Prednisolona/administração & dosagem , Dapsona/uso terapêutico , Feminino , Humanos , Pênfigo/tratamento farmacológico , Pênfigo/imunologia , Prednisolona/uso terapêutico , Recidiva , Adulto Jovem
16.
Mediators Inflamm ; 2016: 7074829, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27041826

RESUMO

We compared the presence of diverse cytokines and regulatory T and B cells in skin biopsies of discoid lupus erythematosus (DLE) and subacute cutaneous lupus erythematosus (SCLE). We included 19 patients with DLE, 13 with SCLE, 8 healthy controls, and 5 patients with hypertrophic scars. We assessed the CLASI activity score. To determine IL-22-producing cells and the subpopulation of CD4(+)/IL-17A(+)-, CD4(+)/IL-4(+)-, and CD4(+)/IFN-γ (+)-expressing T cells, CD123(+)/IDO(+) pDCs, CD25(+)/Foxp3(+) Tregs, and CD20(+)/IL-10(+)-producing B cells, an immunostaining procedure was performed. Also intracellular IL-22, IL-17, IL-4, IFN-γ, and Foxp3 in CD4 T cells, IL-10 in B cells, and IDO in pDCs were analyzed by flow cytometry in peripheral blood. The main cellular participation in both lupus groups was IL-17- and IL-22-producing cell responses both at skin and at peripheral blood but prevailed in DLE. The CLASI activity scores negatively correlated with Th22 subpopulation and positively correlated with CD25(+)/Foxp3(+) Treg cells. In conclusion a proinflammatory and regulatory imbalance coexists in cutaneous lupus, both responses being more intense in DLE.


Assuntos
Lúpus Eritematoso Cutâneo/imunologia , Lúpus Eritematoso Cutâneo/metabolismo , Linfócitos T Reguladores/imunologia , Linfócitos T Reguladores/metabolismo , Adolescente , Adulto , Idoso , Estudos Transversais , Humanos , Interferon gama/metabolismo , Interleucina-10/metabolismo , Interleucina-17/metabolismo , Interleucina-4/metabolismo , Interleucinas/metabolismo , Pessoa de Meia-Idade , Adulto Jovem , Interleucina 22
17.
J Cancer Educ ; 31(4): 742-748, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-26507743

RESUMO

Despite declining cervical cancer rates, ethnic minorities continue to bear an unequal burden in morbidity and mortality. While access to screening is a major barrier, low levels of knowledge and cultural influences have been found to play a part in underutilization of preventive services. The aim of our study was to evaluate the effect of a promontora-led educational intervention on cervical cancer and human papillomavirus knowledge in mainly Hispanic females attending a primary care clinic. One hundred ten females were recruited from the waiting room of a busy primary care clinic and invited to attend individual or small group educational sessions. Participants completed knowledge surveys pre- and post-intervention. An overall evaluation of the educational session was also completed. Following the educational intervention, participants showed an improvement in knowledge scores from a mean score of 10.8 (SD 3.43) out of a possible score of 18 to a mean score of 16.0 (SD1.51) (p < 0.001). 94.5 % of participants rated as excellent, the presentation of information in a way that was easy to understand, most reported that it was a good use of their time and that it lowered their anxiety about testing for early detection of cervical cancer. An educational intervention delivered by well-trained Promotora/Lay health care worker significantly improves patient's cervical cancer and HPV knowledge and can be a useful tool in patient education in the clinical setting especially with high risk populations.


Assuntos
Intervenção Educacional Precoce , Conhecimentos, Atitudes e Prática em Saúde , Hispânico ou Latino , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/diagnóstico , Atenção Primária à Saúde/normas , Neoplasias do Colo do Útero/diagnóstico , Adulto , Idoso , Feminino , Humanos , México/epidemiologia , Pessoa de Meia-Idade , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/virologia , Esfregaço Vaginal
18.
Skinmed ; 14(5): 395-397, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27871359

RESUMO

Case 1 A 41-year-old man with human immunodeficiency virus (HIV) 1 diagnosed 16 years prior to his consultation was referred for an 8-month history of multiple painless lumps in his mouth. He had A2 status (CD4 cell count of 273 cells/mm3 and viral load of 43,000 copies/L) and was taking treatment with lamivudine/zidovudine (combivir) and efavirenz. Physical examination showed multiple small mucosal-colored and lobulated papulonodules located in the palate and lower gingiva and a whitish verrucous plaque on the lower labial mucosa (Figure 1a). The lesions were diagnosed clinically as focal epithelial hyperplasia (FEH) and further confirmed by classical histopathological findings (Figure 1b). He had previously received unspecified treatment; thus, topical 5% imiquimod cream was initiated every night. Mild erosion and ulceration developed in the upper labial mucosa, which were managed with lubrication (petrolatum ointment). After 2 weeks, all of the small lesions disappeared and the largest plaque resolved 1 week later (Figure 1c). A small residual mass in the area of biopsy, suggesting a scar, remained on the lower lip. The area was removed surgically and corresponded to fibrosis histologically, with no evidence of human papillomavirus (HPV) infection. CD4 cell count (694 cells/mm3) and viral load (<40 copies/L) did not show remarkable changes after imiquimod administration. No serious side effects were observed and the patient has remained free of disease after 1 year of follow-up.


Assuntos
Adjuvantes Imunológicos/administração & dosagem , Aminoquinolinas/administração & dosagem , Hiperplasia Epitelial Focal/tratamento farmacológico , Hiperplasia Epitelial Focal/etiologia , Infecções por HIV/complicações , Adulto , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Humanos , Imiquimode , Masculino , Infecções por Papillomavirus , Carga Viral , Zidovudina/uso terapêutico
19.
Gac Med Mex ; 152(5): 439-443, 2016.
Artigo em Espanhol | MEDLINE | ID: mdl-27792708

RESUMO

BACKGROUND: Leukemia Cutis (LC) consists in neoplastic leukocytic infiltration of the skin and is strongly associated with the presence of extramedullary disease and poor prognosis. However, there are few studies in the literature regarding this entity. We perform a retrospective study of 27 mexican patients in order to analyze the clinical features and prognosis of LC in Mexico, and a brief review of the literature. METHODS: Cases diagnosed as LC by skin biopsy were selected from the database of the Department of Dermatology of National Institute of Medical Science and Nutrition Salvador Zubirán. Cases were searched between the dates of January 1993 and December 2013. RESULTS: Twenty-seven cases which were histologically confirmed with cutaneous leukemic infiltrate were included. Of these patients 60% were male and the mean age at diagnosis was 42 yr (19 to 80 yr). The predominant tipe of LC was acute myeloid leukemia (AML) with 48% of the cases. Nodular neoformations were the main clinical manifestation with 63% of the cases. The mean interval between the diagnosis of LC and death was 10 months (CI 95%). CONCLUSIONS: The presence of LC is a marker of poor prognosis and can precede the relapse of systemic leukemia. Cutaneous infiltration may be the first or the only sign of progression, so doctors should be familiar with the clinical manifestations of this disease.


Assuntos
Leucemia Linfoide/patologia , Leucemia Mieloide/patologia , Infiltração Leucêmica/patologia , Pele/patologia , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Leucemia Linfoide/epidemiologia , Leucemia Mieloide/epidemiologia , Leucemia Mieloide Aguda/mortalidade , Leucemia Mieloide Aguda/patologia , Infiltração Leucêmica/mortalidade , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Estudos Retrospectivos , Distribuição por Sexo , Adulto Jovem
20.
J Low Genit Tract Dis ; 19(4): 323-8, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26360234

RESUMO

OBJECTIVE: The purpose of this study was to assess the acceptability and intention to use cervicovaginal self-sampling for high-risk human papillomavirus infection after receiving an educational intervention among the predominantly Hispanic population residing along the US-Mexico border. METHODS: Women received an educational intervention about cervical cancer prevention through screening with conventional cytology and with self-sampling for high-risk human papillomavirus. After the educational intervention, women performed the self-sampling test. Women's attitudes toward the self-sampling test and cervical cytology were assessed and compared. RESULTS: A total of 110 women aged 30 to 65 years completed the study. The mean (SD) age of the population was 48 (9.3) years. Most (87%) self-identified as being Hispanic and half were born in Mexico; 16% had not had cervical cytology done in 3 years. Self-sampling was more acceptable than cervical cytology; mean (SD) acceptability scores were 25.0 (2.9) and 22.7 (3.0), respectively, with the maximum possible score being 28 (p < .001). A large proportion (42.7%) of women preferred both tests equally. We found high intention to use and recommend self-sampling. Contrary to previous studies, there were no differences between cervical cytology and self-sampling regarding women's concerns about performing the test well and the accuracy of the test, which we attribute to the educational intervention. CONCLUSION: The high acceptability of self-sampling after participants received education about the test and the reported intention to use it if made available add to the evidence on the feasibility of integrating self-testing within cervical cancer screening guidelines.


Assuntos
Infecções por Papillomavirus/diagnóstico , Aceitação pelo Paciente de Cuidados de Saúde , Autoadministração/métodos , Manejo de Espécimes/métodos , Doenças do Colo do Útero/diagnóstico , Adulto , Idoso , Feminino , Hispânico ou Latino , Humanos , Pessoa de Meia-Idade , Estados Unidos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA