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1.
Aesthetic Plast Surg ; 47(5): 2179-2189, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37337055

RESUMO

BACKGROUND: Cosmetic clinics use social media to inform and market to prospective patients. Evidence from social media posts by the UK and Dutch cosmetic clinics illustrates the precarious balance between professionalism and commercialism, and raises important questions for the regulation of these marketing communication efforts. METHODS: A random selection of Instagram posts by Dutch and the UK clinics which offer (non-) invasive cosmetic procedures were selected for a qualitative content analysis. The corpus of data comprised 395 posts by six Dutch and four UK clinics, published between January 2018 and July 2019. The method of analysis was inspired by previous qualitative studies into the marketing of cosmetic procedures and can be described as a (discursive) thematic analysis. RESULTS AND CONCLUSIONS: The tension between the medical-professional and commercial nature of cosmetic procedures was evident in the Instagram posts by Dutch and UK clinics. Despite calls for 'ethical' marketing on social media, this study illustrates that marketing materials are not always in line with current advertising guidelines. Whereas advertising standards authorities have warned against the trivialization of cosmetic procedures, posts by clinics backgrounded the medical nature of procedures in favor of more commercial advertising appeals. Furthermore, the posts demonstrated little diversity in terms of models' gender, ethnicity and body type, which reinforces narrow contemporary beauty ideals. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Citrullus , Mídias Sociais , Humanos , Seringas , Países Baixos , Estudos Prospectivos , Marketing , Reino Unido
2.
BMC Genomics ; 22(1): 591, 2021 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-34348672

RESUMO

BACKGROUND: Fusarium head blight is a disease of global concern that reduces crop yields and renders grains unfit for consumption due to mycotoxin contamination. Fusarium poae is frequently associated with cereal crops showing symptoms of Fusarium head blight. While previous studies have shown F. poae isolates produce a range of known mycotoxins, including type A and B trichothecenes, fusarins and beauvericin, genomic analysis suggests that this species may have lineage-specific accessory chromosomes with secondary metabolite biosynthetic gene clusters awaiting description. METHODS: We examined the biosynthetic potential of 38 F. poae isolates from Eastern Canada using a combination of long-read and short-read genome sequencing and untargeted, high resolution mass spectrometry metabolome analysis of extracts from isolates cultured in multiple media conditions. RESULTS: A high-quality assembly of isolate DAOMC 252244 (Fp157) contained four core chromosomes as well as seven additional contigs with traits associated with accessory chromosomes. One of the predicted accessory contigs harbours a functional biosynthetic gene cluster containing homologs of all genes associated with the production of apicidins. Metabolomic and genomic analyses confirm apicidins are produced in 4 of the 38 isolates investigated and genomic PCR screening detected the apicidin synthetase gene APS1 in approximately 7% of Eastern Canadian isolates surveyed. CONCLUSIONS: Apicidin biosynthesis is linked to isolate-specific putative accessory chromosomes in F. poae. The data produced here are an important resource for furthering our understanding of accessory chromosome evolution and the biosynthetic potential of F. poae.


Assuntos
Fusarium , Canadá , Cromossomos , Fusarium/genética , Peptídeos Cíclicos
3.
J Neurovirol ; 26(4): 572-580, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32524424

RESUMO

The aim of this study is to assess the effect of efavirenz exposure on neurocognitive functioning and investigate plasma neurofilament light (Nfl) as a biomarker for neurocognitive damage. Sub-analysis of the ESCAPE-study, a randomised controlled trial where virologically suppressed, cognitively asymptomatic HIV patients were randomised (2:1) to switch to rilpivirine or continue on efavirenz. At baseline and week 12, patients underwent an extensive neuropsychological assessment (NPA), and serum efavirenz concentration and plasma Nfl levels were measured. Subgroups of elevated (≥ 4.0 mg/L) and therapeutic (0.74 to< 4.0 mg/L) baseline efavirenz concentration were made. Differences between these groups in baseline NPA Z-scores and in delta scores after efavirenz discontinuation were assessed. Nfl level was measured using an ELISA analysis using single molecule array (Simoa) technology. Correlation of plasma NFL with NPA Z-scores was evaluated using a linear mixed model. The elevated group consisted of 6 patients and the therapeutic group of 48. At baseline, the elevated group showed lower composite Z-scores (median - 1.03; IQR 0.87 versus 0.27; 0.79. p 0.02). This effect was also seen on the subdomains verbal (p 0.01), executive functioning (p 0.02), attention (p < 0.01) and speed (p 0.01). In the switch group, the elevated group improved more on composite scores after discontinuing efavirenz (mean 0.58; SD 0.32 versus 0.22; 0.54, p 0.15). No association between plasma Nfl and composite Z-score was found. High efavirenz exposure is associated with worse cognitive functioning compared with patients with therapeutic concentrations. Plasma Nfl is not a suitable biomarker to measure cognitive damage in this group.


Assuntos
Alcinos/uso terapêutico , Fármacos Anti-HIV/uso terapêutico , Benzoxazinas/uso terapêutico , Disfunção Cognitiva/tratamento farmacológico , Ciclopropanos/uso terapêutico , Infecções por HIV/tratamento farmacológico , Proteínas de Neurofilamentos/sangue , Rilpivirina/uso terapêutico , Adulto , Alcinos/sangue , Fármacos Anti-HIV/sangue , Doenças Assintomáticas , Atenção/efeitos dos fármacos , Benzoxazinas/sangue , Biomarcadores/sangue , Disfunção Cognitiva/sangue , Disfunção Cognitiva/fisiopatologia , Disfunção Cognitiva/virologia , Ciclopropanos/sangue , Função Executiva/efeitos dos fármacos , Feminino , Infecções por HIV/sangue , Infecções por HIV/fisiopatologia , Infecções por HIV/virologia , Humanos , Masculino , Testes de Estado Mental e Demência , Pessoa de Meia-Idade , Rilpivirina/sangue , Fala/efeitos dos fármacos
4.
Soc Sci Med ; 344: 116685, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38359524

RESUMO

Whereas several quantitative studies have measured the impact of complications after cosmetic procedures on patients' lives, little qualitative research is available. To address this gap, we interviewed 20 patients attending a special filler complication consultation hour in the Netherlands. We conducted a reflexive thematic analysis, which resulted in three main themes: (1) complications: a patient's journey; (2) complications: the impact of procedures gone wrong; and (3) complications: a filler-free future? Throughout the interviews, the multifaceted impact of the complications was illustrated, which ultimately also demonstrated participants' negotiation of (negative) experiences with complications after cosmetic procedures within a neoliberal, consumerist environment. Within this context, particular discourses were advanced as others were obscured and/or rejected. Most significantly, issues of stigmatization and shame were tangible throughout the interviews as participants felt they (must) accept responsibility for the consequences of their own consumerist decision to undergo cosmetic procedures. Moreover, the participants' decision to undergo further cosmetic procedures after their complication illustrate the normality, or even normativity, of contemporary beauty practices. A final note regards some important implications for the industry in relation to providing adequate complication care.


Assuntos
Emoções , Pacientes , Humanos , Países Baixos , Pesquisa Qualitativa , Avaliação de Resultados da Assistência ao Paciente
5.
J Agric Food Chem ; 72(8): 3949-3957, 2024 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-38375818

RESUMO

Fusarium poae is commonly detected in field surveys of Fusarium head blight (FHB) of cereal crops and can produce a range of trichothecene mycotoxins. Although experimentally validated reports of F. poae strains producing T-2/HT-2 trichothecenes are rare, F. poae is frequently generalized in the literature as a producer of T-2/HT-2 toxins due to a single study from 2004 in which T-2/HT-2 toxins were detected at low levels from six out of forty-nine F. poae strains examined. To validate/substantiate the observations reported from the 2004 study, the producing strains were acquired and phylogenetically confirmed to be correctly assigned as F. poae; however, no evidence of T-2/HT-2 toxin production was observed from axenic cultures. Moreover, no evidence for a TRI16 ortholog, encoding a key acyltransferase shown to be necessary for T-2 toxin production in other Fusarium species, was observed in any of the de novo assembled genomes of the F. poae strains. Our findings corroborate multiple field-based and in vitro studies on FHB-associated Fusarium populations which also do not support the production of T-2/HT-2 toxins with F. poae and therefore conclude that F. poae should not be generalized as a T-2/HT-2 toxin producing species of Fusarium.


Assuntos
Fusarium , Micotoxinas , Toxina T-2/análogos & derivados , Fusarium/genética , Micotoxinas/análise , Grão Comestível/química
6.
BMJ Open ; 14(1): e069556, 2024 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-38176865

RESUMO

OBJECTIVES: To determine whether integrated maternity care is associated with reduced preterm births (PTB) and fewer small-for-gestational-age infants (SGA), and whether its implementation leads to a reduction of secondary care consultations. DESIGN: Retrospective study. SETTING: Integrated maternity care organisation in the southwestern region of the Netherlands. PARTICIPANTS: All singleton pregnancies (≥24 weeks) within integrated maternity care organisation Annature between 2015 and 2020. INTERVENTION: Implementation of a shared maternity record in primary and secondary care. METHODS: Data of 20 818 women were derived from patient records and from the Netherlands Perinatal Registry. Intervention was the introduction of integrated maternity care in January 2018. Through multivariate logistic regression and segmented regression analysis we assessed the combined prevalence of SGA and PTB (SGA-PTB) before (2015-2017), and after the intervention (2018-2020). Regional rates were contrasted with nationwide rates (n=782 176). MAIN OUTCOME MEASURES: SGA-PTB prevalence and mean number of secondary care consultations per pregnancy. RESULTS: SGA-PTB prevalence declined from 618/3443 (17.9%) in 2015 to 560/3501 (16.0%) in 2017 to 507/3459 (14.7%) in 2020 (p<0.005). Mean number of secondary care consultations declined from six per pregnancy in 2015 to three in 2020. Logistic regression demonstrated a significant decline in odds of SGA-PTB (OR 0.83 (95% CI 0.77 to 0.89)) between 2015-2017 and 2018-2020 adjusted for changes in sociodemographic characteristics over time. A statistically significant average monthly 7.3% (p=0.05) reduction in SGA-PTB prevalence and 12.4% (p<0.005) mean monthly reduction in secondary care consultations were demonstrated for 2015-2017. Immediately after the intervention, mean monthly prevalence of SGA-PTB dropped non-significantly to 14.7%. Between 2018 and 2020 a significant 15.2% (p<0.005) reduction in secondary care consultations was shown. CONCLUSION: Our results suggest that implementation of integrated maternity care was associated with reduced PTBs and/or low birth weight, and fewer secondary care consultations. These encouraging findings were observed in a less favourable sociodemographic profile and should be confirmed in other regions with sufficiently large populations, and the possibility to test individual components of integrated maternity care.


Assuntos
Serviços de Saúde Materna , Nascimento Prematuro , Lactente , Feminino , Gravidez , Recém-Nascido , Humanos , Nascimento Prematuro/epidemiologia , Peso ao Nascer , Estudos Retrospectivos , Atenção Secundária à Saúde , Países Baixos/epidemiologia , Recém-Nascido de Baixo Peso , Recém-Nascido Pequeno para a Idade Gestacional , Parto
7.
J Fungi (Basel) ; 9(7)2023 Jun 23.
Artigo em Inglês | MEDLINE | ID: mdl-37504684

RESUMO

Fusarium graminearum is a causal organism of Fusarium head blight in cereals and maize. Although a few secondary metabolites produced by F. graminearum are considered disease virulence factors, many molecular products of biosynthetic gene clusters expressed by F. graminearum during infection and their associated role in the disease are unknown. In particular, the predicted meroterpenoid products of the biosynthetic gene cluster historically designated as "C16" are likely associated with pathogenicity. Presented here are the results of CRISPR-Cas9 gene-editing experiments disrupting the polyketide synthase and terpene synthase genes associated with the C16 biosynthetic gene cluster in F. graminearum. Culture medium screening experiments using transformant strains were profiled by UHPLC-HRMS and targeted MS2 experiments to confirm the associated secondary metabolite products of the C16 biosynthetic gene cluster as the decalin-containing diterpenoid pyrones, FDDP-D and FDDP-E. Both decalin-containing diterpenoid pyrones were confirmed to be produced in wheat heads challenged with F. graminearum in growth chamber trials. The extent to which the F. graminearum C16 biosynthetic gene cluster is dispersed within the genus Fusarium is discussed along with a proposed role of the FDDPs as pathogen virulence factors.

8.
Body Image ; 43: 440-449, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36345082

RESUMO

Today, young people spend much of their lives online where they encounter abundant appearance-focused content. In light of the important role that social media platforms like Instagram play in young people's attitudes towards the cosmetic surgery industry, this study investigates passive and active social media usage in relation to young adults' perceptions of cosmetic procedures. In a cross-sectional survey study among 470 Instagram users aged 18-25 years (Mage = 21.00, SDage = 2.26), young adults indicated a low cosmetic procedure intention themselves, but overestimated the prevalence of cosmetic procedures undertaken by others. Considering passive social media use, young adults who follow influencers who had undergone cosmetic procedures reported higher intentions to have cosmetic procedures themselves, and following influencers who had not undergone procedures was related to lower intentions. In terms of active social media usage, frequency of Instagram posting was generally insignificant in relation to acceptance of and intention to undergo cosmetic procedures. Yet, those who used filters to edit pictures more frequently reported increased cosmetic procedure acceptance and intention. Overall, this paper offers a nuanced perspective on the relation between young adults' perceptions of cosmetic procedures and their social media behaviors, highlighting the importance of specific appearance-oriented social media usage.


Assuntos
Mídias Sociais , Cirurgia Plástica , Adulto Jovem , Humanos , Adolescente , Adulto , Pré-Escolar , Intenção , Estudos Transversais , Imagem Corporal/psicologia
9.
J Biol Chem ; 284(50): 35029-39, 2009 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-19783651

RESUMO

15-Acetyldeoxynivalenol (15-AcDON) is a low molecular weight sesquiterpenoid trichothecene mycotoxin associated with Fusarium ear rot of maize and Fusarium head blight of small grain cereals. The accumulation of mycotoxins such as deoxynivalenol (DON) and 15-AcDON within harvested grain is subject to stringent regulation as both toxins pose dietary health risks to humans and animals. These toxins inhibit peptidyltransferase activity, which in turn limits eukaryotic protein synthesis. To assess the ability of intracellular antibodies (intrabodies) to modulate mycotoxin-specific cytotoxocity, a gene encoding a camelid single domain antibody fragment (V(H)H) with specificity and affinity for 15-AcDON was expressed in the methylotropic yeast Pichia pastoris. Cytotoxicity and V(H)H immunomodulation were assessed by continuous measurement of cellular growth. At equivalent doses, 15-AcDON was significantly more toxic to wild-type P. pastoris than was DON. In turn, DON was orders of magnitude more toxic than 3-acetyldeoxynivalenol. Intracellular expression of a mycotoxin-specific V(H)H within P. pastoris conveyed significant (p = 0.01) resistance to 15-AcDON cytotoxicity at doses ranging from 20 to 100 mug.ml(-1). We also documented a biochemical transformation of DON to 15-AcDON to account for the attenuation of DON cytotoxicity at 100 and 200 mug.ml(-1). The proof of concept established within this eukaryotic system suggests that in planta V(H)H expression may lead to enhanced tolerance to mycotoxins and thereby limit Fusarium infection of commercial agricultural crops.


Assuntos
Anticorpos/metabolismo , Fusarium/química , Micotoxinas/imunologia , Micotoxinas/toxicidade , Pichia , Tricotecenos/imunologia , Tricotecenos/toxicidade , Animais , Camelus , Relação Dose-Resposta a Droga , Fusarium/patogenicidade , Humanos , Cadeias Pesadas de Imunoglobulinas/imunologia , Região Variável de Imunoglobulina/imunologia , Estrutura Molecular , Micotoxinas/química , Pichia/efeitos dos fármacos , Pichia/genética , Pichia/metabolismo , Doenças das Plantas/microbiologia , Tricotecenos/química , Tricotecenos/metabolismo
10.
Pathogens ; 9(2)2020 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-31973184

RESUMO

Fusarium avenaceum is a generalist pathogen responsible for diseases in numerous crop species. The fungus produces a series of mycotoxins including the cyclohexadepsipeptide enniatins. Mycotoxins can be pathogenicity and virulence factors in various plant-pathogen interactions, and enniatins have been shown to influence aggressiveness on potato tubers. To determine the role of these mycotoxins in other F. avenaceum-host interactions, enniatin synthase 1 (ESYN1) disruption and overexpression mutants were generated and their ability to infect wheat and peas investigated. As a preliminary study, the transformants were screened for their ability to cause potato tuber necrosis and, consistent with a previous report, enniatin production increased necrotic lesion size on the tubers. By contrast, when the same mutants were assessed in their ability to cause disease in pea roots or durum wheat spikes, no changes in disease symptoms or virulence were observed. While it is known that, at least in the case of wheat, exogenously applied enniatins can cause tissue necrosis, this group of mycotoxins does not appear to be a key factor on its own in disease development on peas or durum wheat.

12.
Microbiologyopen ; 5(6): 979-991, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27263049

RESUMO

Cereal infection by the broad host range fungal pathogen Fusarium graminearum is a significant global agricultural and food safety issue due to the deposition of mycotoxins within infected grains. Methods to study the intracellular effects of mycotoxins often use the baker's yeast model system (Saccharomyces cerevisiae); however, this organism has an efficient drug export network known as the pleiotropic drug resistance (PDR) network, which consists of a family of multidrug exporters. This study describes the first study that has evaluated the potential involvement of all known or putative ATP-binding cassette (ABC) transporters from the PDR network in exporting the F. graminearum trichothecene mycotoxins deoxynivalenol (DON) and 15-acetyl-deoxynivalenol (15A-DON) from living yeast cells. We found that Pdr5p appears to be the only transporter from the PDR network capable of exporting these mycotoxins. We engineered mutants of Pdr5p at two sites previously identified as important in determining substrate specificity and inhibitor susceptibility. These results indicate that it is possible to alter inhibitor insensitivity while maintaining the ability of Pdr5p to export the mycotoxins DON and 15A-DON, which may enable the development of resistance strategies to generate more Fusarium-tolerant crop plants.


Assuntos
Transportadores de Cassetes de Ligação de ATP/metabolismo , Grão Comestível/microbiologia , Fusarium/patogenicidade , Transporte Proteico/genética , Proteínas de Saccharomyces cerevisiae/metabolismo , Saccharomyces cerevisiae/genética , Tricotecenos/metabolismo , Transportadores de Cassetes de Ligação de ATP/antagonistas & inibidores , Transportadores de Cassetes de Ligação de ATP/genética , Substituição de Aminoácidos/genética , Inocuidade dos Alimentos , Doenças das Plantas/microbiologia , Engenharia de Proteínas , Proteínas de Saccharomyces cerevisiae/antagonistas & inibidores , Proteínas de Saccharomyces cerevisiae/genética
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