Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 38
Filtrar
1.
J Clin Med ; 12(16)2023 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-37629452

RESUMO

BACKGROUND: Meta-analyses (MAs) and network meta-analyses (NMAs) are high-quality studies for assessing drug efficacy, but they are time-consuming and may be affected by biases. The capacity of artificial intelligence to aggregate huge amounts of information is emerging as particularly interesting for processing the volume of information needed to generate MAs. In this study, we analyzed whether the chatbot ChatGPT is able to summarize information in a useful fashion for providers and patients in a way that matches up with the results of MAs/NMAs. METHODS: We included 16 studies (13 NMAs and 3 MAs) that evaluate biologics (n = 6) and both biologic and systemic treatment (n = 10) for moderate-to-severe psoriasis, published between January 2021 and May 2023. RESULTS: The conclusions of the MAs/NMAs were compared to ChatGPT's answers to queries about the molecules evaluated in the selected MAs/NMAs. The reproducibility between the results of ChatGPT and the MAs/NMAs was random regarding drug safety. Regarding efficacy, ChatGPT reached the same conclusion as 5 out of the 16 studies (four out of four studies when three molecules were compared), gave acceptable answers in 7 out of 16 studies, and was inconclusive in 4 out of 16 studies. CONCLUSIONS: ChatGPT can generate conclusions that are similar to MAs when the efficacy of fewer drugs is compared but is still unable to summarize information in a way that matches up to the results of MAs/NMAs when more than three molecules are compared.

2.
JMIR Dermatol ; 5(4): e35034, 2022 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-37632891

RESUMO

BACKGROUND: Most common viral skin infections are not reportable conditions. Studying the population dynamics of these viral epidemics using traditional field methods is costly and time-consuming, especially over wide geographical areas. OBJECTIVE: This study aimed to explore the evolution, seasonality, and distribution of vaccinable and nonvaccinable viral skin infections through an analysis of Google Trends. METHODS: Worldwide search trends from January 2004 through May 2021 for viral skin infections were extracted from Google Trends, quantified, and analyzed. RESULTS: Time series decomposition showed that the total search term volume for warts; zoster; roseola; measles; hand, foot, and mouth disease (HFMD); varicella; and rubella increased worldwide over the study period, whereas the interest for Pityriasis rosea and herpes simplex decreased. Internet searches for HFMD, varicella, and measles exhibited the highest seasonal patterns. The interest for measles and rubella was more pronounced in African countries, whereas the interest for HFMD and roseola was more pronounced in East Asia. CONCLUSIONS: Harnessing data generated by web searches may increase the efficacy of traditional surveillance systems and strengthens the suspicion that the incidence of some vaccinable viral skin infections such as varicella, measles, and rubella may be globally increasing, whereas the incidence of common nonvaccinable skin infections remains stable.

4.
JAAD Int ; 5: 69-75, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34505090

RESUMO

BACKGROUND: Common cutaneous infestations and arthropod bites are not reportable conditions in most countries. Their worldwide epidemiologic evolution and distribution are mostly unknown. OBJECTIVE: To explore the evolution and geographic distribution of common cutaneous infestations and arthropod bites through an analysis of Google Trends. METHODS: Search trends from 2004 through March 2021 for common cutaneous infestations and arthropod bites were extracted from Google Trends, quantified, and analyzed. RESULTS: Time series decomposition showed that total search term volume for pubic lice decreased worldwide over the study period, while the interest for ticks, pediculosis, insect bites, scabies, lice, and bed bugs increased (in increasing order). The interest for bed bugs was more pronounced in the former Union of Soviet Socialist Republics countries, interest for lice in Near East and Middle East countries, and interest for pubic lice in South American countries. Internet searches for bed bugs, insect bites, and ticks exhibited the highest seasonal patterns. LIMITATIONS: Retrospective analysis limits interpretation. CONCLUSION: Surveillance systems based on Google Trends may enhance the timeliness of traditional surveillance systems and suggest that, while most cutaneous infestations increase worldwide, pubic lice may be globally declining.

5.
JAAD Int ; 2: 109-115, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34409359

RESUMO

BACKGROUND: Real-life data on topical treatments in daily practice in patients with moderate acne are poorly characterized. OBJECTIVE: To investigate the drug survival of topical treatments administered to patients with moderate acne in a daily practice. METHODS: Survival analysis was performed on subjects (Belgian university hospital and private practice outpatient dermatology patients) with moderate acne who received topical therapies according to the current published guidelines. RESULTS: A total of 1160 treatment series (1029 patients) were included, including benzoyl peroxide (BPO, n = 93), azelaic acid (n = 246), adapalene (n = 254), a fixed combination of adapalene 0.1% and BPO 2.5% (A/BPO, n = 264), and a fixed combination of clindamycin 1.2% and tretinoin 0.025% gel (Clin-RA, n = 303). The calculated overall median treatment duration of all drugs was 2 months. The probability of treatment discontinuation after only 3 months was 50%. Overall, the drugs were discontinued for the following reasons: controlled acne (9%), side effects (9%), ineffectiveness (52%), combination of side effects and ineffectiveness (3%), and other reasons (1%). Overall, 27% patients were lost to follow-up. LIMITATIONS: The post hoc study design and generalizability limit interpretation of the data. CONCLUSION: Overall, the median treatment duration of topical anti-acne therapies was short (2 months). The main reason for discontinuation was ineffectiveness.

6.
Int J Dermatol ; 60(1): 70-72, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33252818

RESUMO

BACKGROUND: Scabies is a parasitic skin disease. Its clinical diagnosis may be challenging. METHODS: In a prospective observational study, we enrolled all consecutive patients ≥16 years of age with a presumptive diagnosis of scabies and all patients ≥16 years of age with a diffuse itchy dermatosis lasting for more than 1 week. We investigated whether patients with scabies were more prone to scratch themselves during the consultation than patients with other pruritic dermatoses. RESULTS: We observed that a significant proportion of patients (25/62, 40%) with scabies had to scratch while talking or being examined. This clinical sign was less frequently noticed in patients with pruritic dermatoses of other origins (26/196, 13%) (P < 0.001). CONCLUSIONS: The observation of a patient scratching himself during the consultation should prompt serious consideration of scabies. This easily observable clinical sign may be especially useful in low-resource settings, where scabies is known to be very prevalent.


Assuntos
Prurido/etiologia , Escabiose/complicações , Escabiose/diagnóstico , Avaliação de Sintomas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Dermatite Fotoalérgica/complicações , Toxidermias/complicações , Eczema/complicações , Feminino , Granuloma Anular/complicações , Humanos , Linfoma/complicações , Masculino , Pessoa de Meia-Idade , Penfigoide Bolhoso/complicações , Exame Físico , Estudos Prospectivos , Psoríase/complicações , Urticária/complicações , Adulto Jovem
8.
Dermatology ; 232(3): 353-62, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26990096

RESUMO

INTRODUCTION: Skin tissue is frequently exposed to various irritant substances in the workplace, particularly in wet work, which can lead to the development of occupational contact dermatitis. 'Barrier' creams (BCs) are well known, and their applications are still the subject of many studies and controversies. METHODS: We searched all controlled trials investigating BCs against cutaneous irritants in humans published between 1956 and December 2014 from MEDLINE, PubMed, reference lists and existing reviews. RESULTS: Thirty-nine studies about the effects of BCs against skin irritants in humans were selected. Among these, 27 trials in healthy volunteers were found to show many differences with regard to BCs and irritants used, their quantities, test locations, procedures and assessment methods. Finally, 14 patch test trials assessed by clinical scoring and evaporimetry emerged. Although the findings were generally positive, only few findings could be cross-checked from all the data, and vehicles seem to be as effective as BCs. CONCLUSION: Although this review highlights the poor quality and the lack of standardization of most studies, BCs seem to have protective effects against irritants. Further well-designed, adequately powered randomized controlled trials with clinical and biophysical assessments are required.


Assuntos
Dermatite Irritante/tratamento farmacológico , Dermatite Ocupacional/tratamento farmacológico , Creme para a Pele/administração & dosagem , Humanos , Resultado do Tratamento
9.
Am J Clin Dermatol ; 14(6): 429-35, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24019180

RESUMO

There is a high unmet clinical need for new and better treatments in acne vulgaris. Propionibacterium acnes has a strong proinflammatory activity and targets molecules involved in the innate cutaneous immunity, keratinocytes and sebaceous glands of the pilosebaceous follicle. The role of P. acnes in acne confers legitimacy on the possible benefits of immunization-based approaches, which may represent a solution for limiting the development of antibiotic-resistant P. acnes. Various immunization-based approaches have been developed over the last decades, including killed pathogen-based vaccines, vaccination against cell wall-anchored sialidase, monoclonal antibodies to the Christie, Atkins, Munch-Peterson factor of P. acnes, anti-Toll-like receptors vaccines and natural antimicrobial peptides. This review summarizes the current evidence and explores the challenges to making this a realistic treatment option for the future.


Assuntos
Acne Vulgar/terapia , Imunoterapia/métodos , Propionibacterium acnes/isolamento & purificação , Acne Vulgar/imunologia , Acne Vulgar/microbiologia , Animais , Humanos , Inflamação/imunologia , Inflamação/microbiologia , Inflamação/terapia , Queratinócitos/microbiologia , Glândulas Sebáceas/microbiologia , Vacinas/administração & dosagem
10.
Dermatology ; 225(3): 256-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23257731

RESUMO

Accumulative evidence supports the role of nutritional factors in acne. I report here 5 healthy male adult patients developing acne after the consumption of whey protein, a favorite supplement of those engaged in bodybuilding. These observations are in line with biochemical and epidemiological data supporting the effects of milk and dairy products as enhancers of insulin/insulin-like growth factor 1 signaling and acne aggravation. Further prospective studies are required to determine the possible role of dietary supplements in the fitness and bodybuilding environment.


Assuntos
Acne Vulgar/induzido quimicamente , Atletas , Proteínas Alimentares/efeitos adversos , Proteínas do Leite/efeitos adversos , Adulto , Suplementos Nutricionais , Exercício Físico , Humanos , Insulina/metabolismo , Fator de Crescimento Insulin-Like I/metabolismo , Masculino , Proteínas do Soro do Leite , Adulto Jovem
11.
Am J Clin Dermatol ; 13(6): 357-64, 2012 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-22920095

RESUMO

The multifactorial etiology of acne vulgaris makes it challenging to treat. Current treatments include topical retinoids, benzoyl peroxide, topical and systemic antibiotics, azelaic acid, and systemic isotretinoin. Adjunctive and/or emerging approaches include topical dapsone, taurine bromamine, resveratrol, chemical peels, optical treatments, as well as complementary and alternative medications. The purpose of this paper is to discuss the therapies available for acne and their latest developments, including new treatment strategies (i.e. re-evaluation of the use of oral antibiotics and avoidance of topical antibiotic monotherapy, use of subantimicrobial antibiotic dosing, use of low-dose isotretinoin, optical treatments), new formulations (microsponges, liposomes, nanoemulsions, aerosol foams), new combinations (fixed-combination products of topical retinoids and topical antibiotics [essentially clindamycin] or benzoyl peroxide), new agents (topical dapsone, taurine bromamine, resveratrol) and their rationale and likely place in treatment. Acne vaccines, topical natural antimicrobial peptides, and lauric acid represent other promising therapies.


Assuntos
Acne Vulgar/tratamento farmacológico , Fármacos Dermatológicos/uso terapêutico , Desenho de Fármacos , Acne Vulgar/patologia , Acne Vulgar/terapia , Administração Cutânea , Antibacterianos/administração & dosagem , Antibacterianos/uso terapêutico , Terapias Complementares/métodos , Fármacos Dermatológicos/administração & dosagem , Combinação de Medicamentos , Humanos , Vacinas/administração & dosagem
13.
J Dermatolog Treat ; 23(1): 72-7, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21054194

RESUMO

BACKGROUND: Systemic therapies are routinely used for the management of cutaneous warts. However, there is a lack of evidence-based data on their effectiveness. OBJECTIVE: To assess the evidence for the efficacy of systemic treatments for cutaneous warts. METHODS: We designed a systematic review of the randomized controlled clinical trials (1962 to April 2010) investigating systemic therapies for the treatment of cutaneous warts. We obtained data from MEDLINE, PubMed, Current Contents, reference lists, and specialist textbooks, with no restriction on language. The main outcome measures were the total clearance of warts and the adverse effects. RESULTS: There was substantial heterogeneity in the design of the trials. No consistent evidence was found for the efficacy of cimetidine, levamisole or homeopathy, and only limited evidence was found for the efficacy of zinc. CONCLUSIONS: Reviewed trials of systemic treatments for cutaneous warts were highly variable in methods and quality, and there was a paucity of evidence from randomized, placebo-controlled trials on which to base the rational use of such therapies. Limited evidence is emerging that zinc may be effective in selected populations with zinc deficiency.


Assuntos
Homeopatia , Verrugas/tratamento farmacológico , Adjuvantes Imunológicos/uso terapêutico , Cimetidina/uso terapêutico , Inibidores Enzimáticos/uso terapêutico , Humanos , Levamisol/uso terapêutico , Oligoelementos/uso terapêutico , Zinco/uso terapêutico
16.
J Travel Med ; 16(2): 134-5, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19335815

RESUMO

Two cases of Kaposi's sarcoma (KS) that occurred in patients who had no evident risk factors for KS but who were former colonists/expatriates in Central Africa are reported. The occurrence of KS in this setting may represent a hitherto unrecognized epidemiological form of KS.


Assuntos
Herpesvirus Humano 8/isolamento & purificação , Sarcoma de Kaposi/virologia , África Central , Idoso , Idoso de 80 Anos ou mais , Congo , Soronegatividade para HIV , Humanos , Masculino , Sarcoma de Kaposi/diagnóstico , Viagem
17.
Cases J ; 1(1): 74, 2008 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-18687129

RESUMO

We present the case of an eighteen-year-old Caucasian white boy who was diagnosed with xeroderma pigmentosum type A at age 5 and who experienced over the past year disseminated small plaque psoriasis confirmed with skin punch biopsy. The psoriatic lesions were successfully treated with multipotent topical corticosteroids and systemic retinoids. To our knowledge, the association between psoriasis and xeroderma pigmentosum has not been previously reported and may be regarded as unlikely when considering the pathogenesis of both diseases.

18.
Int J Gynecol Pathol ; 27(3): 437-41, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18580324

RESUMO

If in vitro studies have demonstrated a potential interaction between human papillomavirus (HPV) and androgen receptor (AR), their expression in vivo during cervical carcinogenesis remains unknown. To clarify the issue, we have tested by immunohistochemistry the expression status of AR in low-grade cervical intraepithelial neoplasia (LSIL-CIN1) (n=30), high-grade cervical intraepithelial neoplasia (HSIL-CIN2/3) (n=30), and invasive squamous cell carcinoma (ISCC) (n=13). All the patients with these lesions have got a corresponding liquid-based cytology and were proved to be HPV positive by using hybrid capture II methodology with probes against high-risk oncogenic HPVs (HR-HPVs). Thirty cases of normal exocervix epithelium served as controls. The evaluation of AR expression was performed by using H-score system, and an H-score >50 was considered positive. Androgen receptor expression was observed in 100% of normal epithelium (30/30) and LSIL (30/30), but only in 63% of HSIL (19/30) and 23% of ISCC (3/13). A statistically significant difference (P<0.05) concerning this expression was found between normal epithelium and HSIL or ISCC, between LSIL and HSIL or ISCC, and between HSIL and ISCC. To the best of our knowledge, this is the first study describing that the loss of AR expression is a frequent and common event in HSIL and ISCC resulting probably from complex interactions between HR-HPVs and these receptors. These data provide new insights concerning a potential role of androgen and AR in cervical carcinogenesis, which should be confirmed in furthers studies.


Assuntos
Carcinoma de Células Escamosas/metabolismo , Receptores Androgênicos/biossíntese , Displasia do Colo do Útero/metabolismo , Neoplasias do Colo do Útero/metabolismo , Carcinoma de Células Escamosas/virologia , Progressão da Doença , Feminino , Humanos , Imuno-Histoquímica , Infecções por Papillomavirus/complicações , Receptores de Estrogênio/biossíntese , Receptores de Progesterona/biossíntese , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/virologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA