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2.
Skin Health Dis ; 1(4): e59, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34514465

RESUMO

Background: Eczema can have a considerable impact on quality of life. Treatments can improve this, but management is complex. Barriers to eczema self-management may be impacted upon by environmental context, such as the COVID-19 pandemic. Objectives: To explore experiences of eczema, self-management, and accessing healthcare and advice during the COVID-19 pandemic among young people with eczema and parents/carers of children with eczema. Methods: Qualitative semi-structured interviews were carried out with 36 participants recruited from general practices as part of randomised controlled trials of online eczema resources. Results: Changes to everyday life-Periods of staying at home due to the pandemic alter the burden of eczema, with reports of an improved routine and application of topical treatments for many, but difficulties with handwashing for others. Parents/carers reported improved eczema control due to closures of educational settings. Young people reported higher stress that may have triggered eczema flare-ups. Changes to access to advice and treatment-There was a reluctance to seek medical appointments in a non-emergency situation. Participants reported a lack of trust in the outcome of telephone consultations because health professionals were unable to see or feel the skin. Delays or difficulties when obtaining appointments and treatments caused frustration. Access to an online eczema resource was reported to have extra value in the context of the pandemic. Conclusion: Changes to lifestyle and access to healthcare during the pandemic have affected eczema and self-management. Healthcare settings may want to consider providing extra reassurance around remote consultations.

4.
Geochem Geophys Geosyst ; 22(5): e2020GC009588, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-34220359

RESUMO

Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, interlaboratory discrepancies in quantifying carbonate clumped isotope (Δ47) measurements persist, and their specific sources remain unclear. To address interlaboratory differences, we first provide consensus values from the clumped isotope community for four carbonate standards relative to heated and equilibrated gases with 1,819 individual analyses from 10 laboratories. Then we analyzed the four carbonate standards along with three additional standards, spanning a broad range of δ47 and Δ47 values, for a total of 5,329 analyses on 25 individual mass spectrometers from 22 different laboratories. Treating three of the materials as known standards and the other four as unknowns, we find that the use of carbonate reference materials is a robust method for standardization that yields interlaboratory discrepancies entirely consistent with intralaboratory analytical uncertainties. Carbonate reference materials, along with measurement and data processing practices described herein, provide the carbonate clumped isotope community with a robust approach to achieve interlaboratory agreement as we continue to use and improve this powerful geochemical tool. We propose that carbonate clumped isotope data normalized to the carbonate reference materials described in this publication should be reported as Δ47 (I-CDES) values for Intercarb-Carbon Dioxide Equilibrium Scale.

5.
Br J Dermatol ; 184(4): 627-637, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32531800

RESUMO

BACKGROUND: The number of qualitative studies on eczema has increased rapidly in recent years. Systematically reviewing these can provide greater understandings of people's perceptions of eczema and eczema treatments. OBJECTIVES: We sought to systematically review and thematically synthesize qualitative studies exploring views and experiences of people with eczema and parents/carers of children with eczema. METHODS: We searched MEDLINE, EMBASE, PsycINFO and CINAHL from the earliest date available to February 2019. We selected papers focusing on views and experiences of eczema and eczema treatments, and barriers/facilitators to eczema self-management. We excluded papers focusing on health service provision models or health professionals' views. RESULTS: We synthesized 39 papers (reporting 32 studies) from 13 countries. We developed four analytical themes: (1) Eczema not viewed as a long-term condition; (2) Significant psychosocial impact not acknowledged by others; (3) Hesitancy (patient/carer uncertainty) about eczema treatments; and (4) Insufficient information and advice. Our findings suggest that people with eczema and their carers experience frustration at having to manage a condition that is often seen by others as mundane but has significant psychosocial impact and is difficult to manage due to concerns about, and burden of, treatment. This frustration can be exacerbated by experiences of conflicting and/or insufficient information and advice from health professionals, family and others. CONCLUSIONS: Effective self-management of eczema could be supported by addressing beliefs and concerns about treatments; seeking positive ways to promote a 'control not cure' message; acknowledging psychosocial impacts of eczema and treatment burden; and providing clear consistent advice or signposting towards reliable information.


Assuntos
Eczema , Cuidadores , Criança , Eczema/terapia , Pessoal de Saúde , Humanos , Pais , Pesquisa Qualitativa
7.
J Endocrinol Invest ; 43(12): 1717-1722, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32474767

RESUMO

PURPOSE: Patients with Graves' orbitopathy can present with asymmetric disease. The aim of this study was to identify clinical characteristics that distinguish asymmetric from unilateral and symmetric Graves' orbitopathy. METHODS: This was a multi-centre study of new referrals to 13 European Group on Graves' Orbitopathy (EUGOGO) tertiary centres. New patients presenting over a 4 month period with a diagnosis of Graves' orbitopathy were included. Patient demographics were collected and a clinical examination was performed based on a previously published protocol. Patients were categorized as having asymmetric, symmetric, and unilateral Graves' orbitopathy. The distribution of clinical characteristics among the three groups was documented. RESULTS: The asymmetric group (n = 83), was older than the symmetric (n = 157) group [mean age 50.9 years (SD 13.9) vs 45.8 (SD 13.5), p = 0.019], had a lower female to male ratio than the symmetric and unilateral (n = 29) groups (1.6 vs 5.0 vs 8.7, p < 0.001), had more active disease than the symmetric and unilateral groups [mean linical Activity Score 3.0 (SD 1.6) vs 1.7 (SD 1.7), p < 0.001 vs 1.3 (SD 1.4), p < 0.001] and significantly more severe disease than the symmetric and unilateral groups, as measured by the Total Eye Score [mean 8.8 (SD 6.6) vs 5.3 (SD 4.4), p < 0.001, vs 2.7 (SD 2.1), p < 0.001]. CONCLUSION: Older age, lower female to male ratio, more severe, and more active disease cluster around asymmetric Graves' orbitopathy. Asymmetry appears to be a marker of more severe and more active disease than other presentations. This simple clinical parameter present at first presentation to tertiary centres may be valuable to clinicians who manage such patients.


Assuntos
Oftalmopatia de Graves/diagnóstico , Oftalmopatia de Graves/patologia , Adulto , Idoso , Estudos Transversais , Progressão da Doença , Assimetria Facial/diagnóstico , Assimetria Facial/etiologia , Feminino , Oftalmopatia de Graves/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Índice de Gravidade de Doença
8.
PLoS One ; 15(5): e0231588, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32421698

RESUMO

We have recently established a protocol to grow wildtype human oral mucosa organoids. These three-dimensional structures can be maintained in culture long-term, do not require immortalization, and recapitulate the multilayered composition of the epithelial lining of the oral mucosa. Here, we validate the use of this model to study the effect of Leucovorin (LV) on Methotrexate (MTX)-induced toxicity. MTX is a chemotherapeutic agent used in the treatment of pediatric acute lymphoblastic leukemia. Although effective, the use of MTX often results in severe side-effects, including oral mucositis, which is characterized by epithelial cell death. Here, we show that organoids are sensitive to MTX, and that the addition of LV reduces MTX toxicity, in both a concentration- and timing-dependent manner. Additionally, we show that a 24 hour 'pretreatment' with LV reduces MTX-induced cell death, suggesting that such a pretreatment could decrease mucositis in patients. Taken together, we provide the first in vitro model to study the effect of MTX on wildtype oral mucosa cells. Our findings underscore the relevance of the clinically applied LV regimen and highlight the potential of this model to further optimize modifications in dosing and timing of Leucovorin on oral mucosa cells.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Apoptose/efeitos dos fármacos , Mucosa Bucal/efeitos dos fármacos , Organoides/patologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Estomatite/patologia , Adolescente , Criança , Humanos , Técnicas In Vitro , Leucovorina/administração & dosagem , Metotrexato/administração & dosagem , Mucosa Bucal/patologia , Técnicas de Cultura de Órgãos , Organoides/efeitos dos fármacos , Leucemia-Linfoma Linfoblástico de Células Precursoras/patologia , Estomatite/induzido quimicamente
9.
S Afr J Sports Med ; 32(1): v32i1a8158, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-36818972

RESUMO

Background: Information about the relationships between physical fitness, body composition and nutrition has increased in recent years; however, little is known about physical fitness and the coexistence of under-/overnutrition among children living in disadvantaged areas. Objectives: To determine the physical fitness status and its association with body composition, growth and selected socio-demographics in primary schoolchildren from disadvantaged communities in the Nelson Mandela Bay region. Methods: Nine hundred and sixty-five children (49% girls, M=9.5 years) participated in this cross-sectional study. Height and weight were measured to establish body mass index, and height-for-age z-scores. Physical fitness was assessed using tests from the Eurofit Physical Fitness test battery (flexibility, upper/lower body muscular strength and cardiorespiratory fitness). Between-group differences and cross-sectional associations were examined with univariate (Chi2-tests, analyses of variance) and multivariate methods (mixed linear/logistic regression). Results: Most children had normal weight (76.7%), while 4.5% were underweight and 18.7% were overweight/obese. Underweight children and children with stunted growth (11.5%) had lower average upper body strength (p<0.001). Overweight/obese children had lower scores in weight-bearing activities (p<0.001). Children with higher socio-economic status were more likely to be overweight and obese (p<0.001). In the multivariate analyses, sex, age, body mass index, and stunting were associated with children's physical fitness. Conclusion: Fitness assessments seem to be a relevant measure of the current health status of children in disadvantaged settings. Compared to international norms, the children in this study had relatively low scores for both upper- and lower body muscular strength. Therefore, effective school-based intervention programmes should be developed to improve children's physical fitness in disadvantaged schools.

10.
Br J Dermatol ; 182(1): 112-118, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31021418

RESUMO

BACKGROUND: Eczema is a common childhood inflammatory skin condition, affecting more than one in five children. A popular perception is that children 'outgrow eczema', although epidemiological studies have shown that, for many, eczema follows a lifelong episodic course. OBJECTIVES: To explore the perceptions of young people about the nature of their eczema and how these perceptions relate to their self-care and adapting to living with eczema. METHODS: This is a secondary inductive thematic analysis of interviews conducted for Healthtalk.org. In total 23 interviews with young people with eczema were included. Of the 23 participants, 17 were female and six male, ranging from 17 to 25 years old. RESULTS: Participants generally experienced eczema as an episodic long-term condition and reported a mismatch between information received about eczema and their experiences. The experience of eczema as long term and episodic had implications for self-care, challenging the process of identifying triggers of eczema flare-ups and evaluating the success of treatment regimens. Participants' experiences of eczema over time also had implications for adaptation and finding a balance between accepting eczema as long term and hoping it would go away. This linked to a gradual shift in treatment expectations from 'cure' to 'control' of eczema. CONCLUSIONS: For young people who continue to experience eczema beyond childhood, a greater focus on self-care for a long-term condition may be helpful. Greater awareness of the impact of early messages around 'growing out of' eczema and provision of high-quality information may help patients to manage expectations and support adaptation to treatment regimens. What's already known about this topic? There is a common perception that people 'grow out of' eczema, but for many people eczema follows a lifelong episodic course. Qualitative work has shown that parents can find that being told their child will grow out of eczema is dismissive, and that they have difficulty with messages about 'control not cure' of eczema. It is unclear how young people perceive their eczema and the implications of this perception for their adaptation and self-care. What does this study add? The message that many people 'grow out of' eczema has a potentially detrimental effect for young people where the condition persists. This has implications for young people's perceptions of their eczema, their learning to self-care and how they adapt to living with eczema and eczema treatments. What are the clinical implications of this work? Clinicians need to promote awareness among young people that eczema is a long-term episodic condition in order to engage them with effective self-care. Young people transitioning to self-care need evidence-based information that is specific and relatable to them.


Assuntos
Eczema , Autocuidado , Administração Tópica , Adolescente , Adulto , Criança , Eczema/tratamento farmacológico , Feminino , Humanos , Masculino , Filmes Cinematográficos , Pais , Pesquisa Qualitativa , Adulto Jovem
11.
Br J Dermatol ; 183(2): 349-356, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31701523

RESUMO

BACKGROUND: Acne vulgaris is a common skin condition affecting approximately 95% of adolescents to some extent. First-line treatments are topical preparations but nonadherence is common. A substantial proportion of patients take long courses of oral antibiotics, associated with antibiotic resistance. OBJECTIVES: This study aimed to explore young people's views and experiences of acne and its treatments. METHODS: We report a secondary thematic analysis of interview data collected by researchers in the Health Experiences Research Group (HERG), University of Oxford. A total of 25 transcripts from young people aged 13-24 years with acne were included. RESULTS: Acne is often perceived as a short-term self-limiting condition of adolescence and this appears to have implications for seeking treatment or advice. Participants widely perceived topical treatments as being ineffective, which seemed related to unrealistic expectations around speed of onset of action. Many participants felt they had tried all available topical treatments, although were unsure what was in them or unaware of differences between cosmetic and pharmaceutical treatments. They had concerns around how to use topicals 'properly' and how to avoid side-effects. They were also concerned about the side-effects or necessity of oral treatments, although few seemed aware of antibiotic resistance. CONCLUSIONS: People with acne need support to manage their condition effectively, particularly a better understanding of different topicals, how to use them and how to avoid side-effects. Unrealistic expectations about the onset of action of treatments appears to be a common cause of frustration and nonadherence. Directing people towards accessible evidence-based information is crucial. What's already known about this topic? There is a common perception that acne is a short-term condition that will resolve without treatment. Previous research has shown that nonadherence to topical treatments is common and that oral antibiotics are the most commonly prescribed treatment for acne in the U.K. Further research is needed to understand how young people perceive acne treatments and the implications of this for treatment adherence and self-management. What does this study add? People often said they had tried all available topical preparations for acne, but seemed confused between cosmetic and pharmaceutical treatments. People seemed unsure how to use topical treatments 'properly' or how to avoid side-effects. This was rarely discussed with health professionals. People's perception of acne as a short-term condition appeared to influence their expectations around onset of action of treatment and their views about its effectiveness and necessity. What are the clinical implications of the work? The perception of acne as a short-term condition has implications for self-management and motivation to seek and adhere to treatments. Providing advice about onset of action of treatments and how to prevent side-effects is crucial, including directing people towards accessible, written, evidence-based information. People's confusion about the different topical treatments available may be alleviated by such information, or by encouraging photos or other recordings of treatments tried and for how long. Linked Comment: Prior. Br J Dermatol 2020; 183:208-209. Plain language summary available online.


Assuntos
Acne Vulgar , Acne Vulgar/tratamento farmacológico , Administração Oral , Adolescente , Adulto , Antibacterianos/uso terapêutico , Humanos , Percepção , Inquéritos e Questionários , Adulto Jovem
12.
Parasitology ; 146(14): 1796-1802, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31452467

RESUMO

Leishmania rely heavily on glycans to complete their digenetic life cycle in both mammalian and phlebotomine sand fly hosts. Leishmania promastigotes secrete a proteophosphoglycan-rich gel (Promastigote Secretory Gel, PSG) that is regurgitated during transmission and can exacerbate infection in the skin. Here we explored the role of PSG from natural Leishmania-sand fly vector combinations by obtaining PSG from Leishmania (L.) major-infected Phlebotomus (P.) papatasi and P. duboscqi and L. tropica-infected P. arabicus. We found that, in addition to the vector's saliva, the PSG from L. major and L. tropica potently exacerbated cutaneous infection in BALB/c mice, improved the probability of developing a patent cutaneous lesion, parasite growth and the evolution of the lesion. Of note, the presence of PSG in the inoculum more than halved the prepatent period of cutaneous L. tropica infection from an average of 32 weeks to 13 weeks. In addition, L. major and L. tropica PSG extracted from the permissive experimental vector, Lutzomyia (Lu.) longipalpis, also exacerbated infections in mice. These results reinforce and extend the hypothesis that PSG is an important and evolutionarily conserved component of Leishmania infection that can be used to facilitate experimental infection for drug and vaccine screening.


Assuntos
Leishmania major/química , Leishmania tropica/química , Leishmaniose Cutânea/patologia , Proteínas de Membrana/administração & dosagem , Phlebotomus/parasitologia , Proteoglicanas/administração & dosagem , Proteínas de Protozoários/administração & dosagem , Pele/efeitos dos fármacos , Pele/patologia , Animais , Feminino , Leishmaniose Cutânea/parasitologia , Proteínas de Membrana/química , Camundongos , Camundongos Endogâmicos BALB C , Carga Parasitária , Proteoglicanas/química , Proteínas de Protozoários/química , Saliva , Pele/parasitologia , Exacerbação dos Sintomas
13.
Dalton Trans ; 48(5): 1757-1765, 2019 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-30638241

RESUMO

Iron(i) species are debated as key intermediates during the C-halide activation step in Kumuda type C-C cross-coupling catalysis. However, there is only limited knowledge on the reactivity of isolable iron(i) complexes towards organohalides. Using the known two-coordinate iron(i) complex K{18c6}[FeI(N(SiMe3)2)2] we disclose its proficiency to rapidly cleave different types of carbon halide bonds including even C-F bonds. Mechanistic studies indicate stepwise one-electron processes with the involvement of organoradicals.

14.
Br J Dermatol ; 180(4): 810-820, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30451281

RESUMO

BACKGROUND: Cellulitis is a common painful infection of the skin and underlying tissues that recurs in approximately one-third of cases. The only proven strategy to reduce the risk of recurrence is long-term, low-dose antibiotics. Given current concerns about antibiotic resistance and the pressure to reduce antibiotic prescribing, other prevention strategies are needed. OBJECTIVES: To explore patients' views about cellulitis and different ways of preventing recurrent episodes. METHODS: Adults aged ≥ 18 years with a history of first-episode or recurrent cellulitis were invited through primary care, hospitals and advertising to complete a survey, take part in an interview or both. RESULTS: Thirty interviews were conducted between August 2016 and July 2017. Two hundred and forty surveys were completed (response rate 17%). Triangulation of quantitative and qualitative data showed that people who have had cellulitis have wide-ranging beliefs about what can cause cellulitis and are often unaware of risk of recurrence or potential strategies to prevent recurrence. Enhanced foot hygiene, applying emollients daily, exercise and losing weight were more popular potential strategies than the use of compression stockings or long-term antibiotics. Participants expressed caution about long-term oral antibiotics, particularly those who had experienced only one episode of cellulitis. CONCLUSIONS: People who have had cellulitis are keen to know about possible ways to prevent further episodes. Enhanced foot hygiene, applying emollients daily, exercise and losing weight were generally viewed to be more acceptable, feasible strategies than compression or antibiotics, but further research is needed to explore uptake and effectiveness in practice.


Assuntos
Antibacterianos/administração & dosagem , Antibioticoprofilaxia/métodos , Celulite (Flegmão)/tratamento farmacológico , Conhecimentos, Atitudes e Prática em Saúde , Prevenção Secundária/métodos , Administração Oral , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/efeitos adversos , Antibioticoprofilaxia/efeitos adversos , Celulite (Flegmão)/diagnóstico , Celulite (Flegmão)/patologia , Doença Crônica/tratamento farmacológico , Estudos Transversais , Emolientes/administração & dosagem , Feminino , Humanos , Higiene , Masculino , Pessoa de Meia-Idade , Atenção Primária à Saúde/métodos , Pesquisa Qualitativa , Recidiva , Atenção Secundária à Saúde/métodos , Redução de Peso , Adulto Jovem
15.
Sci Rep ; 7(1): 16572, 2017 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-29185446

RESUMO

The variability of seawater temperature through time is a critical measure of climate change, yet its reconstruction remains problematic in many regions. Mg/Ca and oxygen isotope (δ 18OC) measurements in foraminiferal carbonate shells can be combined to reconstruct seawater temperature and δ 18O (δ 18OSW). The latter is a measure of changes in local hydrology (e.g., precipitation/evaporation, freshwater inputs) and global ice volume. But diagenetic processes may affect foraminiferal Mg/Ca. This restricts its potential in many places, including the Mediterranean Sea, a strategic region for deciphering global climate and sea-level changes. High alkalinity/salinity conditions especially bias Mg/Ca temperatures in the eastern Mediterranean (eMed). Here we advance the understanding of both western Mediterranean (wMed) and eMed hydrographic variability through the penultimate glacial termination (TII) and last interglacial, by applying the clumped isotope (Δ 47) paleothermometer to planktic foraminifera with a novel data-processing approach. Results suggest that North Atlantic cooling during Heinrich stadial 11 (HS11) affected surface-water temperatures much more in the wMed (during winter/spring) than in the eMed (during summer). The method's paired Δ 47 and δ 18OC data also portray δ 18OSW. These records reveal a clear HS11 freshwater signal, which attenuated toward the eMed, and also that last interglacial surface warming in the eMed was strongly amplified by water-column stratification during the deposition of the organic-rich (sapropel) interval known as S5.


Assuntos
Foraminíferos/química , Isótopos de Oxigênio/análise , Cálcio/análise , Mudança Climática , Magnésio/análise , Mar Mediterrâneo , Temperatura
16.
Ann Oncol ; 28(11): 2725-2732, 2017 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-28945836

RESUMO

BACKGROUND: Thymidylate synthase (TS) has a predictive role in pemetrexed treatment of mesothelioma; however, additional chemoresistance mechanisms are poorly understood. Here, we explored the role of the reduced-folate carrier (RFC/SLC19A1) and proton-coupled folate transporter (PCFT/SLC46A1) in antifolate resistance in mesothelioma. PATIENTS AND METHODS: PCFT, RFC and TS RNA and PCFT protein levels were determined by quantitative RT-PCR of frozen tissues and immunohistochemistry of tissue-microarrays, respectively, in two cohorts of pemetrexed-treated patients. Data were analyzed by t-test, Fisher's/log-rank test and Cox proportional models. The contribution of PCFT expression and PCFT-promoter methylation to pemetrexed activity were evaluated in mesothelioma cells and spheroids, through 5-aza-2'-deoxycytidine-mediated demethylation and siRNA-knockdown. RESULTS: Pemetrexed-treated patients with low PCFT had significantly lower rates of disease control, and shorter overall survival (OS), in both the test (N = 73, 11.3 versus 20.1 months, P = 0.01) and validation (N = 51, 12.6 versus 30.3 months, P = 0.02) cohorts. Multivariate analysis confirmed PCFT-independent prognostic role. Low-PCFT protein levels were also associated with shorter OS. Patients with both low-PCFT and high-TS levels had the worst prognosis (OS, 5.5 months), whereas associations were neither found for RFC nor in pemetrexed-untreated patients. PCFT silencing reduced pemetrexed sensitivity, whereas 5-aza-2'-deoxycytidine overcame resistance. CONCLUSIONS: These findings identify for the first time PCFT as a novel mesothelioma prognostic biomarker, prompting prospective trials for its validation. Moreover, preclinical data suggest that targeting PCFT-promoter methylation might eradicate pemetrexed-resistant cells characterized by low-PCFT expression.


Assuntos
Biomarcadores Tumorais/metabolismo , Resistencia a Medicamentos Antineoplásicos , Mesotelioma/patologia , Pemetrexede/uso terapêutico , Neoplasias Pleurais/patologia , Transportador de Folato Acoplado a Próton/metabolismo , Proteína Carregadora de Folato Reduzido/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Proliferação de Células/efeitos dos fármacos , Feminino , Antagonistas do Ácido Fólico/uso terapêutico , Seguimentos , Humanos , Técnicas Imunoenzimáticas , Masculino , Mesotelioma/tratamento farmacológico , Mesotelioma/metabolismo , Pessoa de Meia-Idade , Neoplasias Pleurais/tratamento farmacológico , Neoplasias Pleurais/metabolismo , Prognóstico , Taxa de Sobrevida , Timidilato Sintase/metabolismo , Células Tumorais Cultivadas
17.
Environ Pollut ; 231(Pt 1): 237-251, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28802993

RESUMO

Gentle remediation options (GRO) are based on the combined use of plants, associated microorganisms and soil amendments, which can potentially restore soil functions and quality. We studied the effects of three GRO (aided-phytostabilisation, in situ stabilisation and phytoexclusion, and aided-phytoextraction) on the soil microbial biomass and respiration, the activities of hydrolase enzymes involved in the biogeochemical cycles of C, N, P, and S, and bacterial community structure of trace element contaminated soils (TECS) from six field trials across Europe. Community structure was studied using denaturing gradient gel electrophoresis (DGGE) fingerprinting of Bacteria, α- and ß-Proteobacteria, Actinobacteria and Streptomycetaceae, and sequencing of DGGE bands characteristic of specific treatments. The number of copies of genes involved in ammonia oxidation and denitrification were determined by qPCR. Phytomanagement increased soil microbial biomass at three sites and respiration at the Biogeco site (France). Enzyme activities were consistently higher in treated soils compared to untreated soils at the Biogeco site. At this site, microbial biomass increased from 696 to 2352 mg ATP kg-1 soil, respiration increased from 7.4 to 40.1 mg C-CO2 kg-1 soil d-1, and enzyme activities were 2-11-fold higher in treated soils compared to untreated soil. Phytomanagement induced shifts in the bacterial community structure at both, the total community and functional group levels, and generally increased the number of copies of genes involved in the N cycle (nirK, nirS, nosZ, and amoA). The influence of the main soil physico-chemical properties and trace element availability were assessed and eventual site-specific effects elucidated. Overall, our results demonstrate that phytomanagement of TECS influences soil biological activity in the long term.


Assuntos
Biodegradação Ambiental , Microbiologia do Solo , Poluentes do Solo/análise , Oligoelementos/análise , Bactérias/efeitos dos fármacos , Betaproteobacteria , Biomassa , Eletroforese em Gel de Gradiente Desnaturante , Europa (Continente) , França , Plantas , Solo/química , Poluentes do Solo/toxicidade , Oligoelementos/toxicidade
18.
IEEE Int Conf Rehabil Robot ; 2017: 1100-1105, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28813968

RESUMO

Body machine interfaces (BMIs) are used by people with severe motor disabilities to control external devices, but they also offer the opportunity to focus on rehabilitative goals. In this study we introduced in a clinical setting a BMI that was integrated by the therapists in the rehabilitative treatments of 2 spinal cord injured (SCI) subjects for 5 weeks. The BMI mapped the user's residual upper body mobility onto the two coordinates of a cursor on a screen. By controlling the cursor, the user engaged in playing computer games. The BMI allowed the mapping between body and cursor spaces to be modified, gradually challenging the user to exercise more impaired movements. With this approach, we were able to change our subjects' behavior, who initially used almost exclusively their proximal upper body-shoulders and arms - for using the BMI. By the end of training, cursor control was shifted toward more distal body regions - forearms instead of upper arms - with an increase of mobility and strength of all the degrees of freedom involved in the control. The clinical tests and the electromyographic signals from the main muscles of the upper body confirmed the positive effect of the training. Encouraging the subjects to explore different and sometimes unusual movement combinations was beneficial for recovering distal arm functions and for increasing their overall mobility.


Assuntos
Sistemas Homem-Máquina , Movimento/fisiologia , Traumatismos da Medula Espinal/reabilitação , Interface Usuário-Computador , Adulto , Braço/fisiopatologia , Fenômenos Biomecânicos , Eletrodos , Eletromiografia , Terapia por Exercício , Feminino , Humanos , Masculino , Processamento de Sinais Assistido por Computador , Jogos de Vídeo , Tecnologia sem Fio , Adulto Jovem
19.
Nervenarzt ; 88(5): 472-479, 2017 May.
Artigo em Alemão | MEDLINE | ID: mdl-28396896

RESUMO

In the following article similarities and differences concerning the treatment of sex offenders in the psychiatric forensic commitment (§ 63 German penal code) and of persons with a self-reported sexual interest in children, who were diagnosed and treated in the outpatient prevention of sexual abuse (PSM) in Göttingen are demonstrated. Diagnostic and therapeutic characteristics of outpatient prevention as well as the initial results of the evaluation of the Göttingen therapy manual are presented and differentiated from the normal treatment program in psychiatric forensic commitment.


Assuntos
Assistência Ambulatorial/legislação & jurisprudência , Assistência Ambulatorial/métodos , Psiquiatria Legal/legislação & jurisprudência , Psiquiatria Legal/métodos , Prevenção Primária/legislação & jurisprudência , Delitos Sexuais/prevenção & controle , Delitos Sexuais/psicologia , Assistência Ambulatorial/normas , Psiquiatria Legal/normas , Alemanha , Regulamentação Governamental , Prevenção Primária/métodos , Prevenção Primária/normas
20.
Int J Phytoremediation ; 19(10): 947-954, 2017 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-28323452

RESUMO

A questionnaire survey was carried out in four European countries to gather end-user's perceptions of using plants from phytotechnologies in combustion and anaerobic digestion (AD). Nine actors of the wood energy sector from France, Germany, and Sweden, and eleven AD platform operators from France, Germany, and Austria were interviewed. Questions related to installation, input materials, performed analyses, phytostabilization, and phytoextraction were asked. Although the majority of respondents did not know phytotechnologies, results suggested that plant biomass from phytomanaged areas could be used in AD and combustion, under certain conditions. As a potential benefit, phytomanaged plants would not compete with plants grown on agricultural lands, contaminated lands being not suitable for agriculture production. Main limitations would be related to additional controls in process' inputs and end-products and installations that might generate additional costs. In most cases, the price of phytotechnologies biomass was mentioned as a driver to potentially use plants from metal-contaminated soils. Plants used in phytostabilization or phytoexclusion were thought to be less risky and, consequently, benefited from a better theoretical acceptance than those issued from phytoextraction. Results were discussed according to national regulations. One issue was related to the regulatory gap concerning the status of the plant biomass produced on contaminated land.


Assuntos
Biodegradação Ambiental , Plantas , Poluentes do Solo , Biomassa , França , Alemanha , Solo , Suécia
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