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BACKGROUND: The prevalence of reported penicillin allergy (PenA) and the impact these records have on health outcomes in the UK general population are unknown. Without such data, justifying and planning enhanced allergy services is challenging. OBJECTIVES: To determine: (i) prevalence of PenA records; (ii) patient characteristics associated with PenA records; and (iii) impact of PenA records on antibiotic prescribing/health outcomes in primary care. METHODS: We carried out cross-sectional/retrospective cohort studies using patient-level data from electronic health records. Cohort study: exact matching across confounders identified as affecting PenA records. Setting: English NHS general practices between 1 April 2013 and 31 March 2014. Participants: 2.3 million adult patients. Outcome measures: prevalence of PenA, antibiotic prescribing, mortality, MRSA infection/colonization and Clostridioides difficile infection. RESULTS: PenA prevalence was 5.9% (IQRâ=â3.8%-8.2%). PenA records were more common in older people, females and those with a comorbidity, and were affected by GP practice. Antibiotic prescribing varied significantly: penicillins were prescribed less frequently in those with a PenA record [relative risk (RR) â=â0.15], and macrolides (RRâ=â4.03), tetracyclines (RRâ=â1.91) nitrofurantoin (RRâ=â1.09), trimethoprim (RRâ=â1.04), cephalosporins (RRâ=â2.05), quinolones (RRâ=â2.10), clindamycin (RRâ=â5.47) and total number of prescriptions were increased in patients with a PenA record. Risk of re-prescription of a new antibiotic class within 28 days (RRâ=â1.32), MRSA infection/colonization (RRâ=â1.90) and death during the year subsequent to 1 April 2013 (RRâ=â1.08) increased in those with PenA records. CONCLUSIONS: PenA records are common in the general population and associated with increased/altered antibiotic prescribing and worse health outcomes. We estimate that incorrect PenA records affect 2.7 million people in England. Establishing true PenA status (e.g. oral challenge testing) would allow more people to be prescribed first-line antibiotics, potentially improving health outcomes.
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Antibacterianos/efeitos adversos , Hipersensibilidade a Drogas/epidemiologia , Hipersensibilidade a Drogas/imunologia , Penicilinas/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Prescrições de Medicamentos/estatística & dados numéricos , Registros Eletrônicos de Saúde , Inglaterra/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Avaliação de Resultados em Cuidados de Saúde , Padrões de Prática Médica , Prevalência , Estudos Retrospectivos , Adulto JovemRESUMO
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
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Due to increasingly high rates of child overweight and obesity, it is important to identify risk and protective factors that may inform more effective prevention and intervention. The degree of organization in the family home environment is a studied, but not well-specified, factor that may impact child weight. Prior research on household organization has examined an array of constructs, including family routines, limit setting, household chaos, crowding and the broad home environment. This study systematically reviews literature on organization within the family home environment and weight among children ages 2-12. Six hundred thirty-seven studies were reviewed by four coders for eligibility, and 32 studies were included in the final synthesis. Overall, 84% of studies provided evidence for relations between at least one indicator of organization within the family home environment and child weight. Studies provided compelling evidence across several constructs, suggesting that the relevance of household organization to child weight extends beyond a single indicator. Directions for future work include (i) examining the mediating role of health behaviours, (ii) examining the moderating role of socioeconomic factors, (iii) broadening this evidence base across cultures and nationalities and (iv) integrating constructs to develop a comprehensive model of organization within the home environment.
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Características da Família , Comportamento Alimentar/psicologia , Comportamentos Relacionados com a Saúde , Pais/psicologia , Obesidade Infantil/etiologia , Criança , Pré-Escolar , Humanos , Relações Pais-Filho , Pais/educação , Fatores de Proteção , Meio Social , Fatores SocioeconômicosRESUMO
Climatic change is widely acknowledged to have played a role in the dispersal of modern humans out of Africa, but the timing is contentious. Genetic evidence links dispersal to climatic change ~60,000 years ago, despite increasing evidence for earlier modern human presence in Asia. We report a deep seismic and near-continuous core record of the last 150,000 years from Lake Tana, Ethiopia, close to early modern human fossil sites and to postulated dispersal routes. The record shows varied climate towards the end of the penultimate glacial, followed by an abrupt change to relatively stable moist climate during the last interglacial. These conditions could have favoured selection for behavioural versatility, population growth and range expansion, supporting models of early, multiple dispersals of modern humans from Africa.
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Evolução Biológica , Clima , Paleontologia , África , Mudança Climática , Etiópia , HumanosRESUMO
BACKGROUND: Given the double jeopardy of global increases in rates of obesity and climate change, it is increasingly important to recognise the dangers posed to diabetic patients during periods of extreme weather. We aimed to characterise the associations between ambient temperature and general medical practitioner consultations made by a cohort of type-2 diabetic patients. Evidence on the effects of temperature variation in the primary care setting is currently limited. METHODS: Case-crossover analysis of 4,474,943 consultations in England during 2012-2014, linked to localised temperature at place of residence for each patient. Conditional logistic regression was used to assess associations between each temperature-related consultation and control days matched on day-of-week. RESULTS: There was an increased odds of seeking medical consultation associated with high temperatures: Odds ratio (OR) = 1.097 (95% confidence interval = 1.041, 1.156) per 1 °C increase above 22 °C. Odds during low temperatures below 0 °C were also significantly raised: OR = 1.024 (1.019, 1.030). Heat-related consultations were particularly high among diabetics with cardiovascular comorbidities: OR = 1.171 (1.031, 1.331), but there was no heightened risk with renal failure or neuropathy comorbidities. Surprisingly, lower odds of heat-related consultation were associated with the use of diuretics, anticholinergics, antipsychotics or antidepressants compared to non-use, especially among those with cardiovascular comorbidities, although differences were not statistically significant. CONCLUSIONS: Type-2 diabetic patients are at increased odds of medical consultation during days of temperature extremes, especially during hot weather. The common assumption that certain medication use heightens the risk of heat illness was not borne-out by our study on diabetics in a primary care setting and such advice may need to be reconsidered in heat protection plans.
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Diabetes Mellitus Tipo 2/terapia , Atenção Primária à Saúde , Características de Residência , Temperatura , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Criança , Pré-Escolar , Estudos de Coortes , Inglaterra , Feminino , Humanos , Lactente , Recém-Nascido , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Atenção Primária à Saúde/estatística & dados numéricos , Fatores de Risco , Estações do Ano , Adulto JovemRESUMO
Introduction The Index of Orthognathic Functional Treatment Need (IOFTN) was developed to measure functional difficulties arising from malocclusions related to facial deformity. The IOFTN is not currently being used to determine suitability for orthognathic treatment, however, it is a useful aid for assessing and referring patients and takes into account functional and facial appearance. This paper aims to evaluate the potential impact of introduction of the IOFTN on the future provision of orthognathic services.Methods Two methods were used to consider the impact of the IOFTN on orthognathic provision. Firstly, a local retrospective audit was undertaken in Leeds Teaching Hospital NHS Trust involving thirty consecutively treated patients, for whom full records were retrieved. Data was collected using a standardised data caption form. Local standards were agreed concerning the need for treatment. Secondly, a systematic search of published studies was completed to assess evidence from across the UK.Results The audit standard, that is, 90% of patients treated with orthognathic surgery should be categorised as grade 4 (great need) or 5 (very great need) using the IOFTN, was fulfilled. The most common reason for seeking treatment related to dental and facial aesthetics and no patients were treated for speech or TMJ problems alone. The systematic review searches identified four suitable records for inclusion in the review, including two audits and two retrospective studies undertaken in secondary care settings across England and Scotland. These studies showed that at least 86% of all participants scored 4 or 5 using the IOFTN.Conclusions The findings from the audit and literature review indicate that referrals from general dentists and acceptance for orthognathic treatment in secondary care is unlikely to be significantly affected by introduction of the IOFTN. Referring dentists may find the IOFTN a useful prompt for determining whether people are suitable for orthognathic treatment.
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Índice de Necessidade de Tratamento Ortodôntico , Procedimentos Cirúrgicos Ortognáticos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Encaminhamento e Consulta , Estudos Retrospectivos , Adulto JovemRESUMO
While urothelial signals, including sonic hedgehog (Shh), drive bladder mesenchyme differentiation, it is unclear which pathways within the mesenchyme are critical for its development. Studies have shown that fibroblast growth factor receptor 2 (Fgfr2) is necessary for kidney and ureter mesenchymal development. Our objective was to determine the role of Fgfr2 in bladder mesenchyme. We used Tbx18cre mice to delete Fgfr2 in bladder mesenchyme (Fgfr2BM-/-). We performed three-dimensional reconstructions, quantitative real-time PCR, in situ hybridization, immunolabeling, ELISAs, immunoblotting, void stain on paper, ex vivo bladder sheet assays, and in vivo decerebrated cystometry. Compared with controls, embryonic (E) day 16.5 (E16.5) Fgfr2BM-/- bladders have thin muscle layers with reduced α-smooth muscle actin levels and thickened lamina propria with increased collagen expression that intrudes into muscle. From postnatal (P) day 1 (P1) to P30, Fgfr2BM-/- bladders demonstrate progressive muscle loss and increased collagen expression. Postnatal Fgfr2BM-/- bladder sheets exhibit decreased contractility and increased passive stretch tension compared with controls. In vivo cystometry revealed high baseline and threshold pressures and shortened intercontractile intervals in Fgfr2BM-/- bladders compared with controls. Mechanistically, while Shh expression appears normal, mRNA and protein readouts of hedgehog activity are increased in E16.5 Fgfr2BM-/- bladders compared with controls. Moreover, E16.5Fgfr2BM-/- bladders exhibit higher levels of Cdo and Boc, hedgehog coreceptors that enhance sensitivity to Shh, than controls. Fgfr2 is critical for bladder mesenchyme patterning by virtue of its role in modulation of hedgehog signaling.
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Padronização Corporal , Mesoderma/metabolismo , Músculo Liso/metabolismo , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/metabolismo , Bexiga Urinária/metabolismo , Actinas/genética , Actinas/metabolismo , Animais , Apoptose , Moléculas de Adesão Celular/genética , Moléculas de Adesão Celular/metabolismo , Proliferação de Células , Colágeno/genética , Colágeno/metabolismo , Regulação da Expressão Gênica no Desenvolvimento , Genótipo , Idade Gestacional , Proteínas Hedgehog/genética , Proteínas Hedgehog/metabolismo , Imunoglobulina G/genética , Imunoglobulina G/metabolismo , Masculino , Camundongos Knockout , Contração Muscular , Músculo Liso/embriologia , Músculo Liso/fisiopatologia , Miócitos de Músculo Liso , Fenótipo , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/efeitos dos fármacos , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/genética , Receptores de Superfície Celular/genética , Receptores de Superfície Celular/metabolismo , Transdução de Sinais , Bexiga Urinária/embriologia , Bexiga Urinária/fisiopatologia , UrodinâmicaRESUMO
Aim To understand the frequency of use and training of IOTN amongst dental registrants working in primary and secondary care. To ascertain which factors influence 'accuracy' of IOTN amongst dental registrants.Method Participants were asked to complete a short questionnaire at the same time as scoring the IOTN for 14 cases. The questionnaire was developed by the authors of this study to understand registrants' place of work, frequency of use of IOTN and training undertaken in IOTN. Multiple linear regression analysis was used to reveal which predictor factors best described a registrant's knowledge of IOTN.Results The mean kappa scores were the highest for participants working in secondary care (K = 0.68) when compared to those solely working in primary care. The SO and GDP groups were found to be the groups with the largest proportion of participants using IOTN on a daily basis. Only the participants that used the IOTN everyday achieved an acceptable mean DHC K >0.60. There is an increasing trend of mean DHC kappa scores evident with increasing frequency of use of IOTN. All participants had received training in the use of IOTN with the majority (n = 181/229) having their last episode of training within the last five years. The majority of the training received in IOTN was classified as being verifiable (n = 154/229) with the remainder classifying their training as non-verifiable. Two predictor variables were found to have a significant influence on the DHC kappa scores, which included registrant group and place of work. Only one of the predictor variables had a statistically significant influence on the AC kappa scores, which was the type of CPD, with participants who had received non-verifiable CPD having a lower kappa scores.Conclusion Place of work, frequency of use of IOTN and registrant group were the main factors which were found to influence accuracy of use of IOTN. This study has highlighted a need for greater support in terms of resources, training and tools to help dental registrants use the IOTN more accurately to an acceptable level.
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Índice de Necessidade de Tratamento Ortodôntico , Má Oclusão , Atenção Primária à Saúde , Estética Dentária , Humanos , Inquéritos e QuestionáriosRESUMO
Aim To determine whether dental registrants can use the dental health component (DHC) and aesthetic component (AC) of the Index of Orthodontic Treatment Need (IOTN) 'accurately' to an acceptable level of agreement and diagnostic validity.Method Participants from six different registrant groups were asked to score the IOTN for 14 cases based on study models and photographs as well as completing a short questionnaire. Participants in the study were all recruited at study days and annual conferences. The main outcome measures include the different registrant groups IOTN scores compared to expert panel scores using kappa statistics. To assess for diagnostic validity, individual participants sensitivity and specificity scores were calculated.Result Overall, 229 registrants took part in the study. For the DHC the specialist orthodontist (SO), postgraduate orthodontic student (PGOS) and the qualified orthodontic therapist (QOT) groups achieved a mean kappa ≥0.60 indicating 'acceptable' agreement with the expert panel scores. The dental foundation trainee (DFT) and general dental practitioner (GDP) group achieved a mean kappa of 0.20 and 0.22 respectively indicating poor and fair agreement. The student orthodontic therapist (SOT) group achieved a mean kappa of 0.55 indicating moderate agreement. For the AC none of the registrant groups achieved an acceptable level of agreement with the mean kappa scores for the different groups ranging from kappa 0.13-0.21, indicating poor to fair agreement.Conclusion Overall agreement for the DHC was varied for the different registrant groups ranging from fair to substantial agreement. Registrants were better at applying the DHC compared to the AC with agreement ranging from poor to fair. More needs to done to help registrants use the IOTN more 'accurately'.
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Necessidades e Demandas de Serviços de Saúde , Índice de Necessidade de Tratamento Ortodôntico , Má Oclusão , Ortodontia Corretiva , Estética Dentária , Humanos , Saúde Bucal , Inquéritos e QuestionáriosRESUMO
The British Association for Sexual Health and HIV Genital Dermatology Special Interest Group (SIG) conducted a survey of specialist registrar training in genital dermatology (GD) to inform future training provision provided by the group and other services. The survey shows that training in GD is variable with most trainees receiving GD training through formal lectures or ad hoc clinical teaching, with fewer trainees having access to specialist GD clinics. There is mixed confidence in diagnosis and use of topical steroids, and few trainees are independent in GD practical procedures. Many trainees feel training could be improved with requests for a formalised attachment, formal qualification and greater training in practical procedures. The GD SIG, in liaison with British Association for Sexual Health and HIV (BASHH), aims to optimise GD training for registrars. Plans for improved resources are in progress, including a practical skills course and e-learning. It is hoped this survey will also inform GD training at both local and national levels.
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Dermatologia/educação , Internato e Residência , Venereologia/educação , Atenção à Saúde , Feminino , Doenças dos Genitais Femininos/terapia , Doenças dos Genitais Masculinos/terapia , Humanos , Masculino , Dermatopatias/terapia , Inquéritos e Questionários , Reino Unido , Venereologia/estatística & dados numéricosRESUMO
As the health and expectations of the UK population improve, demand for orthodontic treatment is increasing. This article will examine who actually needs orthodontic treatment and who is currently receiving it, while also providing an opinion on the the risks versus benefits in providing demand-led treatment.
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Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Ortodontia/estatística & dados numéricos , Adolescente , Criança , Odontólogos/estatística & dados numéricos , Estética Dentária , Humanos , Má Oclusão/terapia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Papel Profissional , Medição de Risco , Reino UnidoRESUMO
While urothelial signals, including sonic hedgehog (Shh), drive bladder mesenchyme differentiation, it is unclear which pathways within the mesenchyme are critical for its development. Studies have shown that fibroblast growth factor receptor (Fgfr)2 is necessary for kidney and ureter mesenchymal development. The objective of the present study was to determine the role of Fgfr2 in the bladder mesenchyme. We used Tbx18cre mice to delete Fgfr2 in the bladder mesenchyme (Fgfr2(BM-/-)). We performed three-dimensional reconstructions, quantitative real-time PCR, in situ hybridization, immunolabeling, ELISAs, immunoblot analysis, void stain on paper, ex vivo bladder sheet assays, and in vivo decerebrated cystometry. Compared with control bladders, embryonic day 16.5 (E16.5) Fgfr2(BM-/-) bladders had thin muscle layers with less α-smooth muscle actin and thickened lamina propria with increased collagen type Ia and IIIa that intruded into the muscle. The reciprocal changes in mutant layer thicknesses appeared partly due to a cell fate switch. From postnatal days 1 to 30, Fgfr2(BM-/-) bladders demonstrated progressive muscle loss and increased collagen expression. Postnatal Fgfr2(BM-/-) bladder sheets exhibited decreased agonist-mediated contractility and increased passive stretch tension versus control bladder sheets. Cystometry revealed high baseline and threshold pressures and shortened intercontractile intervals in Fgfr2(BM-/-) versus control bladders. Mechanistically, whereas Shh expression appeared normal, mRNA and protein readouts of hedgehog activity were increased in E16.5 Fgfr2(BM-/-) versus control bladders. Moreover, E16.5 Fgfr2(BM-/-) bladders exhibited higher levels of Cdo and Boc, hedgehog coreceptors that enhance sensitivity to Shh, compared with control bladders. In conclusion, loss of Fgfr2 in the bladder mesenchyme leads to abnormal bladder morphology and decreased compliance and contractility.
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Padronização Corporal , Mesoderma/metabolismo , Músculo Liso/metabolismo , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/metabolismo , Bexiga Urinária/metabolismo , Animais , Apoptose , Moléculas de Adesão Celular/metabolismo , Diferenciação Celular , Linhagem da Célula , Proliferação de Células , Complacência (Medida de Distensibilidade) , Fibrose , Regulação da Expressão Gênica no Desenvolvimento , Genótipo , Idade Gestacional , Proteínas Hedgehog/metabolismo , Imunoglobulina G/metabolismo , Masculino , Mesoderma/anormalidades , Camundongos Knockout , Contração Muscular , Músculo Liso/anormalidades , Músculo Liso/fisiopatologia , Tamanho do Órgão , Fenótipo , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/deficiência , Receptor Tipo 2 de Fator de Crescimento de Fibroblastos/genética , Receptores de Superfície Celular/metabolismo , Transdução de Sinais , Bexiga Urinária/anormalidades , Bexiga Urinária/fisiopatologia , UrodinâmicaRESUMO
NFAT (the nuclear factor of activated T cells) upregulation has been linked to cellular transformation intrinsically, but it is unclear whether and how tissue cells with NFAT activation change the local environment for tumor initiation and progression. Direct evidence showing NFAT activation initiates primary tumor formation in vivo is also lacking. Using inducible transgenic mouse systems, we show that tumors form in a subset of, but not all, tissues with NFATc1 activation, indicating that NFAT oncogenic effects depend on cell types and tissue contexts. In NFATc1-induced skin and ovarian tumors, both cells with NFATc1 activation and neighboring cells without NFATc1 activation have significant upregulation of c-Myc and activation of Stat3. Besides known and suspected NFATc1 targets, such as Spp1 and Osm, we have revealed the early upregulation of a number of cytokines and cytokine receptors, as key molecular components of an inflammatory microenvironment that promotes both NFATc1(+) and NFATc1(-) cells to participate in tumor formation. Cultured cells derived from NFATc1-induced tumors were able to establish a tumorigenic microenvironment, similar to that of the primary tumors, in an NFATc1-dependent manner in nude mice with T-cell deficiency, revealing an addiction of these tumors to NFATc1 activation and downplaying a role for T cells in the NFATc1-induced tumorigenic microenvironment. These findings collectively suggest that beyond the cell autonomous effects on the upregulation of oncogenic proteins, NFATc1 activation has non-cell autonomous effects through the establishment of a promitogenic microenvironment for tumor growth. This study provides direct evidence for the ability of NFATc1 in inducing primary tumor formation in vivo and supports targeting NFAT signaling in anti-tumor therapy.
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Regulação Neoplásica da Expressão Gênica , Fatores de Transcrição NFATC/metabolismo , Microambiente Tumoral , Animais , Carcinogênese , Carcinoma de Células Escamosas/patologia , Modelos Animais de Doenças , Feminino , Humanos , Inflamação , Camundongos , Camundongos Nus , Camundongos Transgênicos , Fatores de Transcrição NFATC/genética , Transplante de Neoplasias , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/patologia , Transdução de Sinais , Neoplasias Cutâneas/metabolismo , Células-Tronco/citologiaRESUMO
Inhibitory neurons control the firing of glutamatergic neurons and synchronize brain activity. However, little is known about mechanisms of excitatory synapse formation in inhibitory neurons. Here we demonstrate that Erbin is specifically expressed in cortical inhibitory neurons. It localizes at excitatory synapses and regulates AMPA receptor (AMPAR) surface expression. Erbin mutation reduced mEPSCs and AMPAR currents specifically in parvalbumin (PV)-positive interneurons but not in pyramidal neurons. We found that the AMPAR auxiliary protein TARP γ-2 was specifically expressed in cortical interneurons. Erbin interacts with TARP γ-2 and is crucial for its stability. Deletion of the γ-2-interacting domain in Erbin attenuated surface AMPAR and excitatory transmission in PV-positive interneurons. Furthermore, we observed behavioral deficits in Erbin-null mice and in mice expressing an Erbin truncation mutant that is unable to interact with TARP γ-2. These observations demonstrate a crucial function for Erbin in AMPAR surface expression in cortical PV-positive interneurons and may contribute to a better understanding of psychiatric disorders.
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Canais de Cálcio/metabolismo , Proteínas de Transporte/metabolismo , Córtex Cerebral/metabolismo , Interneurônios/metabolismo , Receptores de AMPA/metabolismo , Sinapses/metabolismo , Animais , Comportamento Animal/fisiologia , Canais de Cálcio/genética , Proteínas de Transporte/genética , Córtex Cerebral/citologia , Potenciais Pós-Sinápticos Excitadores/fisiologia , Células HEK293 , Humanos , Interneurônios/citologia , Peptídeos e Proteínas de Sinalização Intracelular , Camundongos , Camundongos Knockout , Potenciais Pós-Sinápticos em Miniatura/fisiologia , Atividade Motora/genética , Parvalbuminas/metabolismo , Receptores de AMPA/genética , Sinapses/genética , Transmissão Sináptica/genética , Ácido gama-Aminobutírico/metabolismoRESUMO
Laurel wilt, caused by Raffaelea lauricola, a fungal symbiont of the redbay ambrosia beetle, Xyleborus glabratus, is responsible for extensive mortality of native redbays (Persea borbonia and P. palustris) in the coastal plains of the southeastern United States (1). The wilt also affects the more widespread sassafras, Sassafras albidum, particularly in areas where diseased redbays are common and populations of X. glabratus are high. Because sassafras stems were thought to lack chemicals that are attractive to the beetle, and sassafras tends to be widely scattered in forests, it was believed that the advance of the laurel wilt epidemic front might slow once it reached the edge of the natural range of redbay, which is restricted to the coastal plains of the Gulf and Atlantic Coasts (2). In July and August of 2011, wilt-like symptoms (i.e., wilted and dead leaves, and streaks of black discoloration in the xylem) were observed on 1 to 10 sassafras trees (15 to 23 cm diameter; 6 to 9 m height) at each of three locations, which were approximately 6 km from one another in Marengo Co., Alabama. Samples of the discolored wood from five trees were plated on malt agar amended with cycloheximide and streptomycin (CSMA), and a fungus morphologically identical to R. lauricola was isolated from each tree (1). For confirmation, a portion of the large subunit (28S) of the rDNA region of three of the isolates was sequenced (3); in each case, the sequence matched exactly that of other isolates of R. lauricola (EU123077) from the United States. Symptomatic trees were found at all three sites when revisited in April 2012, and approximately 20 sassafras trees in various stages of wilt were observed at one location, where only one diseased tree had been noted in 2011. Bolts were cut from the main stem of a symptomatic tree, and eggs, larvae, and adults of X. glabratus were commonly found in tunnels, and R. lauricola was isolated from the discolored xylem. Three container-grown sassafras saplings (mean height 193 cm, mean diameter 2.1 cm at groundline) were inoculated as previously described (1) with conidia (~600,000) from an isolate of R. lauricola. Three additional sassafras saplings were inoculated with sterile, deionized water, and all plants were placed in a growth chamber at 25°C with a 15-h photoperiod. Inoculated plants began to exhibit wilt symptoms within 14 days, and at 30 days all inoculated plants were dead and xylem discoloration was observed. Control plants appeared healthy and did not exhibit xylem discoloration. Pieces of sapwood from 15 cm above the inoculation points were plated on CSMA, and R. lauricola was recovered from all wilted plants but not from control plants. This is the first record of laurel wilt in Alabama and is significant because the disease appears to be spreading on sassafras in an area where redbays have not been recorded (see http://www.floraofalabama.org ). The nearest previously documented case of laurel wilt is on redbay and sassafras in Jackson Co., Mississippi (4), approximately 160 km to the south. The exact source of the introduction of X. glabratus and R. lauricola into Marengo Co. is not known. The vector may have been transported into the area with storms, moved with infested firewood, or shipped with infested timber by companies that supply mills in the area. References: (1) S. Fraedrich et al. Plant Dis. 92:215, 2008. (2) J. Hanula et al. Econ. Ent. 101:1276, 2008. (3) T. Harrington et al. Mycotaxon 111:337, 2010. (4) J. Riggins et al. Plant Dis. 95:1479, 2011.
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SUMMARY: Follow-up of a British national survey of older people found that in men, all-cause mortality was predicted by baseline plasma concentrations of phosphorus, albumin, creatinine and α1-antichymotrypsin, and food energy intake and in women by plasma alkaline phosphatase, creatinine, α1-antichymotrypsin, 25-hydroxy-vitamin D (marginally), and phosphorus intake. INTRODUCTION: Predictive power, for all-cause mortality, of bone-related vitamin and mineral indices and intakes, measured at baseline (primary objective), was studied in the British National Diet and Nutrition Survey (community-living subset) of People Aged 65 Years and Over. A secondary objective was to identify cross-sectional relationships between indices at baseline to help explain mortality predictions. METHODS: Mortality status was recorded for 1,054 (mean age 76.6 ± 7.4 years, 49.0% female) participants from baseline survey in 1994/1995 until September 2008. Seventy-four per cent of male and 62% of female participants died. Cox proportional hazards models were used to relate baseline nutrient and risk marker estimates to subsequent survival. Results below 1.0 signified lower risk at greater nutrient (status or intake) values and vice versa. RESULTS: In both sexes, all-cause mortality was significantly predicted by body weight and mid-upper arm circumference. In men, it was predicted by baseline plasma concentrations (per SD) of: phosphorus (hazard ratio 1.18, 95% confidence interval (CI) = 1.06-1.30), albumin (hazard ratio 0.84, 95% CI = 0.74-0.94), creatinine (hazard ratio 1.20, 95% CI = 1.08-1.33) and α(1)-antichymotrypsin (hazard ratio 1.21, 95% CI = 1.11-1.33). In women, it was predicted by plasma albumin (hazard ratio 0.83, 95% CI = 0.72-0.96), alkaline phosphatase (hazard ratio 1.08, 95% CI = 1.01-1.16), creatinine (hazard ratio 1.37, 95% CI = 1.13-1.66), α(1)-antichymotrypsin (hazard ratio 1.27, 95% CI = 1.11-1.45) and marginally by 25-hydroxy-vitamin D (hazard ratio 0.87, 95% CI = 0.75-1.00). In men, it was predicted by dietary intake (per SD) of food energy; in women, by intake of phosphorus. Adjustment for plasma α(1)-antichymotrypsin or plasma creatinine reduced the significance of plasma phosphorus in men. CONCLUSION: Mortality prediction by higher plasma phosphorus in older British men may imply impaired renal function and/or acute phase status. Further studies are needed on which associations are causal and modifiable.
Assuntos
Osso e Ossos/metabolismo , Dieta/estatística & dados numéricos , Minerais/administração & dosagem , Mortalidade , Vitaminas/administração & dosagem , Idoso , Idoso de 80 Anos ou mais , Antropometria/métodos , Ingestão de Energia/fisiologia , Feminino , Força da Mão/fisiologia , Humanos , Estilo de Vida , Masculino , Minerais/sangue , Atividade Motora/fisiologia , Inquéritos Nutricionais , Fósforo/administração & dosagem , Fósforo/sangue , Fatores Sexuais , Reino Unido/epidemiologiaRESUMO
Renal dysfunction of acute liver failure (ALF) may have distinct pathophysiological mechanisms to hepatorenal syndrome of cirrhosis. Yet, the impact of perioperative renal function on posttransplant renal outcomes in ALF patients specifically has not been established. The aims of this study were (1) to describe the incidence and risk factors for chronic renal dysfunction following liver transplantation for ALF and (2) to compare renal outcomes with age-sex-matched patients transplanted for chronic liver disease. This was a single-center study of 101 patients transplanted for ALF. Fifty-three-and-a-half percent had pretransplant acute kidney injury and 64.9% required perioperative renal replacement therapy. After transplantation the 5-year cumulative incidence of chronic kidney disease (eGFR <60 mL/min/1.73 m²) was 41.5%. There was no association between perioperative acute kidney injury (p = 0.288) or renal replacement therapy (p = 0.134) and chronic kidney disease. Instead, the independent predictors of chronic kidney disease were older age (p = 0.019), female gender (p = 0.049), hypertension (p = 0.031), cyclosporine (p = 0.027) and nonacetaminophen-induced ALF (p = 0.039). Despite marked differences in the perioperative clinical condition and survival of patients transplanted for ALF and chronic liver disease, renal outcomes were the same. In conclusion, in patients transplanted for ALF the severity of perioperative renal injury does not predict posttransplant chronic renal dysfunction.