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There is a critical need to increase Latino participation in research on Alzheimer's disease and related disorders (ADRD). Applying principles of community-based participatory research, we convened a community advisory board (CAB) to identify barriers and recommend strategies to increase participation of older Latinos in a longitudinal observational research study of ADRD at the Shiley-Marcos Alzheimer's Disease Research Center. Six major barriers were identified and programmatic changes to overcome them were implemented. Changes resulted in a nearly three-fold increase in the number of Latino individuals recruited, with the proportion of all newly recruited participants who were Latino increasing from 12.2% to 57.4%. Newer Latino recruits were more representative of the elderly Latino population in San Diego County than those recruited pre-CAB and remained highly agreeable to blood draw and neuroimaging, though less so to lumbar puncture and autopsy. Results demonstrate the value of CAB involvement in enhancing diversity in ADRD research.
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BACKGROUND: Thyroid testing strategies vary across laboratories. First-line combined thyroid stimulating hormone (TSH) and freeT4 (FT4) have historically been preferred by many laboratories as this detects individuals with undiagnosed central hypothyroidism who can be missed with a first-line TSH-only strategy. However, an up-to-date evaluation of the utility of this approach is lacking. OBJECTIVES: We investigated the clinical utility of first-line TSH and FT4 in the detection of central hypothyroidism in current day practice. DESIGN, PATIENTS, AND MEASUREMENTS: The All-Wales laboratory information system was queried to identify thyroid function tests in patients aged ≥16 years with decreased FT4 and inappropriate TSH (low-FT4). The 1-year incidence of low-FT4 was determined using mid-year population data. Clinical information of patients with low-FT4 was reviewed to determine causes of low-FT4 and the incidence of central hypothyroidism. RESULTS: The incidence of low-FT4 varied according to FT4 assay method (range: 98-301 cases/100,000 population/year). Fifteen new cases of central hypothyroidism were detected in two health boards, equivalent to 2 cases/100,000 population/year. Positive predictive value of low-FT4 for central hypothyroidism was 2%-4%. In a cross-section of primary care patients, low-FT4 was detected in 0.5% of all thyroid tests with assay-related differences in detection rates. CONCLUSIONS: Although low-FT4 is a common laboratory finding, the incidence of central hypothyroidism remains rare. With the currently increased rates of thyroid testing and increased use of medications that decrease FT4, low-FT4 has a much lower predictive value for central hypothyroidism than previously reported. Thyroid screening strategies will need to balance the yield from first line TSH and FT4 testing with the cost of investigating individuals with non-pathological laboratory abnormalities.
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Hipotireoidismo , Testes de Função Tireóidea , Tireotropina , Tiroxina , Humanos , Hipotireoidismo/diagnóstico , Hipotireoidismo/sangue , Hipotireoidismo/epidemiologia , Tireotropina/sangue , Pessoa de Meia-Idade , Feminino , Adulto , Masculino , Tiroxina/sangue , Idoso , Adulto Jovem , Adolescente , Programas de Rastreamento/métodos , IncidênciaRESUMO
Introduction: Students need to acquire high level self-regulatory skills if they are to be successful within higher education, and academics need support in facilitating this. In this article we explore how the current research gap between knowledge of self-regulatory assessment and feedback (SRAF) practices, and academics' professional training in it can be bridged. Methods: SRAF tools were used with academics to explore their understandings of and training needs in SRAF; central to this work was the development of a SRAF scale. We consider the value of such tools in supporting academics' professional development needs in SRAF. The reliability and validity of the SRAF scale was tested using exploratory factor analyses (EFA). Results: Iterative EFA resulted in a 17 item support required SRAF scale (SR). Two underpinning factors: Creating the Conditions for SRAF, and Supporting Students' SRAF Skills Development were identified. The reliability of the instrument supported its primary use as a tool to facilitate academics' professional development in fostering students' self-regulatory skills. Discussion: Our findings highlight the importance of supporting academics in developing strategies to maximize students' metacognitive skills and motivation in assessment and feedback, contingent on effective assessment design. Such professional development needs to be mindful of individual and contextual factors impacting academics' access to, and confidence and competence in, using SRAF in practice. This research is important in highlighting potential disconnects between where academics' focus their attention in assessment, and what is known to have most impact on student learning success. The SRAF tools have considerable potential in supporting translation of theory into practice as part of sustained professional development for academics in higher education.
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CONTEXT: The serum total cortisol response to the ACTH stimulation test is widely used to assess adrenocortical function but is affected by changes in cortisol-binding globulin (CBG) concentration. Salivary cortisol reflects free cortisol concentrations and may offer a reliable alternative. OBJECTIVES: (1) To establish the salivary cortisol response to ACTH stimulation in healthy volunteers and patients with altered CBG concentrations; (2) to evaluate the performance of a lower reference limit (LRL) determined in healthy volunteers in patients with suspected hypoadrenalism (SH-patients). DESIGN: A 250 µg ACTH stimulation test was undertaken in 139 healthy volunteers, 24 women taking an estradiol-containing oral contraceptive pill (OCP-females), 10 patients with low serum protein concentration (LP-patients), and 30 SH-patients. Salivary cortisol was measured by liquid chromatography-tandem mass spectrometry. Mean and LRL of the 30-minute salivary cortisol response (mean-1.96 standard deviation) were derived from log-transformed concentrations. The LRL was applied as a diagnostic cut-off in SH-patients, with comparison to the serum response. RESULTS: Mean CBG concentrations (range) were 58 (42-81) mg/L, 64 (43-95) mg/L, 41 (28-60) mg/L, and 116 (84-159) mg/L in males, females, LP-patients, and OCP-females, respectively. The mean 30-minute salivary cortisol concentration was 19.3 (2.5th-97.5th percentile 10.3-36.2) nmol/L in healthy volunteers. Corresponding values were not different in OCP-females [19.7 (9.5-41.2) nmol/L; P = .59] or LP-patients [19.0 (7.7-46.9) nmol/L; P = .97]. Overall diagnostic agreement between salivary and serum responses in SH-patients was 79%. CONCLUSION: Salivary cortisol response to ACTH stimulation offers a reliable alternative to serum and may be especially useful in conditions of altered CBG concentration.
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Insuficiência Adrenal , Hipoaldosteronismo , Masculino , Humanos , Feminino , Hidrocortisona , Hormônio Adrenocorticotrópico , Saliva/química , Insuficiência Adrenal/diagnóstico , Insuficiência Adrenal/metabolismoRESUMO
Introduction: The quality of student engagement in assessment within higher education affects learning outcomes. However, variations in conceptions of what quality in engagement looks like impacts assessment design and the way that students and lecturers engage with each other in the assessment process. Given that assessment is an important driver of student engagement in higher education, it is surprising that no specific measures to support understanding of this measure exist. To address this significant gap, we outline the evolution of an assessment engagement scale derived from a research-informed conceptual framework utilizing best practice in assessment and feedback. Methods: We consider the validity and utility of the assessment engagement scale in supporting students' understanding of assessment and their role within it using exploratory and confirmatory factor analyses. Results: The resultant nine-item assessment engagement scale's underpinning two factors included: (i) Understanding of the Assessment Context (UAC) including one's role within it, and confidence in navigating assessment requirement, and (ii) Realising Engagement Opportunities (REO) (i.e., willingness to engage and ability to utilise the assessment context effectively to support one's understanding). Construct, criterion, and convergent validity of the scale were established. Discussion: The AES is a powerful tool in promoting dialogue between lecturers and students about what high quality engagement in assessment looks like, and the respective roles of all parties in realising this. Implications for assessment practices are discussed along with the potential of the scale as a predictive and developmental tool to support enhancements in assessment design and student learning outcomes in higher education.
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BACKGROUND: Thyroglobulin (Tg) is an essential part for the management of patients with differentiated thyroid carcinoma (DTC) after thyroidectomy. Highly sensitive Tg assays are now established in clinical practice as they facilitate follow-up of DTC patients. In this study, we evaluated the recently launched highly sensitive Abbott Tg assay for Alinity and ARCHITECT. METHODS: In this three-center study, Tg values of 447 routine patient samples, characterized for the presence of anti-Tg, were measured with the ARCHITECT Tg assay and compared with the Roche Elecsys TgII assay. In addition, a subset of 154 samples was compared also with the Beckman Tg Access assay and another subset (n = 122) with Abbott Tg on the Alinity i analyzer. RESULTS: LoQ was verified to be less than or equal to 0.1 ng/ml confirming that the Tg assay on ARCHITECT and Alinity is highly sensitive. Correlation of ARCHITECT, Alinity, and Roche was excellent with a slope between 0.9 and 1.1 and a correlation coefficient >0.98. Correlation to Beckmann Tg was also very good, but the differences in absolute values were significant (slope: 1.477). CONCLUSIONS: The Abbott Thyroglobulin assay, which is standardized to CRM-457, demonstrated a high correlation to the Roche and Beckman Tg assays, though good agreement of absolute values was only observed between Abbott and Roche. Strength of correlation and slope were not affected by the presence of anti-Tg indicating that all assays included in the study have a similar susceptibility to anti-Tg.
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Tireoglobulina , Neoplasias da Glândula Tireoide , Bioensaio , Humanos , Imunoensaio , Técnicas Imunoenzimáticas , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias da Glândula Tireoide/patologia , TireoidectomiaRESUMO
BACKGROUND: The COVID-19 pandemic disrupted Alzheimer disease randomized clinical trials (RCTs), forcing investigators to make changes in the conduct of such trials while endeavoring to maintain their validity. Changing ongoing RCTs carries risks for biases and threats to validity. To understand the impact of exigent modifications due to COVID-19, we examined several scenarios in symptomatic and disease modification trials that could be made. METHODS: We identified both symptomatic and disease modification Alzheimer disease RCTs as exemplars of those that would be affected by the pandemic and considered the types of changes that sponsors could make to each. We modeled three scenarios for each of the types of trials using existing datasets, adjusting enrollment, follow-ups, and dropouts to examine the potential effects COVID-19-related changes. Simulations were performed that accounted for completion and dropout patterns using linear mixed effects models, modeling time as continuous and categorical. The statistical power of the scenarios was determined. RESULTS: Truncating both symptomatic and disease modification trials led to underpowered trials. By contrast, adapting the trials by extending the treatment period, temporarily stopping treatment, delaying outcomes assessments, and performing remote assessment allowed for increased statistical power nearly to the level originally planned. DISCUSSION: These analyses support the idea that disrupted trials under common scenarios are better continued and extended even in the face of dropouts, treatment disruptions, missing outcomes, and other exigencies and that adaptations can be made that maintain the trials' validity. We suggest some adaptive methods to do this noting that some changes become under-powered to detect the original effect sizes and expected outcomes. These analyses provide insight to better plan trials that are resilient to unexpected changes to the medical, social, and political milieu.
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Doença de Alzheimer , COVID-19 , Doença de Alzheimer/tratamento farmacológico , Simulação por Computador , Humanos , Pandemias , SARS-CoV-2RESUMO
BACKGROUND: Gestational TSH and FT4 reference intervals may differ according to assay method, but the extent of variation is unclear and has not been systematically evaluated. We conducted a systematic review of published studies on TSH and FT4 reference intervals in pregnancy. Our aim was to quantify method-related differences in gestation reference intervals, across four commonly used assay methods, Abbott, Beckman, Roche and Siemens. METHODS: We searched the literature for relevant studies, published between January 2000 and December 2020, in healthy pregnant women without thyroid antibodies or disease. For each study, we extracted trimester-specific reference intervals (2.5-97.5 percentiles) for TSH and FT4 as well as the manufacturer-provided reference interval for the corresponding non-pregnant population. RESULTS: TSH reference intervals showed a wide range of study-to-study differences with upper limits ranging from 2.33 to 8.30 mU/L. FT4 lower limits ranged from 4.40 to 13.93 pmol/L, with consistently lower reference intervals observed with the Beckman method. Differences between non-pregnant and first trimester reference intervals were highly variable, and for most studies, the TSH upper limit in the first trimester could not be predicted or extrapolated from non-pregnant values. CONCLUSIONS: Our study confirms significant intra- and intermethod disparities in gestational thyroid hormone reference intervals. The relationship between pregnant and non-pregnant values is inconsistent and does not support the existing practice in many laboratories of extrapolating gestation references from non-pregnant values. Laboratories should invest in deriving method-specific gestation reference intervals for their population.
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Primeiro Trimestre da Gravidez/sangue , Gravidez/sangue , Tireotropina/sangue , Tiroxina/sangue , Adulto , Feminino , Humanos , Valores de Referência , Testes de Função TireóideaRESUMO
OBJECTIVES: The GETAFIX trial will test the hypothesis that favipiravir is a more effective treatment for COVID-19 infection in patients who have early stage disease, compared to current standard of care. This study will also provide an important opportunity to investigate the safety and tolerability of favipiravir, the pharmacokinetic and pharmacodynamic profile of this drug and mechanisms of resistance in the context of COVID-19 infection, as well as the effect of favipiravir on hospitalisation duration and the post COVID-19 health and psycho-social wellbeing of patients recruited to the study. TRIAL DESIGN: GETAFIX is an open label, parallel group, two arm phase II/III randomised trial with 1:1 treatment allocation ratio. Patients will be randomised to one of two arms and the primary endpoint will assess the superiority of favipiravir plus standard treatment compared to standard treatment alone. PARTICIPANTS: This trial will recruit adult patients with confirmed positive valid COVID-19 test, who are not pregnant or breastfeeding and have no prior major co-morbidities. This is a multi-centre trial, patients will be recruited from in-patients and outpatients from three Glasgow hospitals: Royal Alexandra Hospital; Queen Elizabeth University Hospital; and the Glasgow Royal Infirmary. Patients must meet all of the following criteria: 1. Age 16 or over at time of consent 2. Exhibiting symptoms associated with COVID-19 3. Positive for SARS-CoV-2 on valid COVID-19 test 4. Point 1, 2, 3, or 4 on the WHO COVID-19 ordinal severity scale at time of randomisation. (Asymptomatic with positive valid COVID-19 test, Symptomatic Independent, Symptomatic assistance needed, Hospitalized, with no oxygen therapy) 5. Have >=10% risk of death should they be admitted to hospital as defined by the ISARIC4C risk index: https://isaric4c.net/risk 6. Able to provide written informed consent 7. Negative pregnancy test (women of childbearing potential*) 8. Able to swallow oral medication Patients will be excluded from the trial if they meet any of the following criteria: 1. Renal impairment requiring, or likely to require, dialysis or haemofiltration 2. Pregnant or breastfeeding 3. Of child bearing potential (women), or with female partners of child bearing potential (men) who do not agree to use adequate contraceptive measures for the duration of the study and for 3 months after the completion of study treatment 4. History of hereditary xanthinuria 5. Other patients judged unsuitable by the Principal Investigator or sub-Investigator 6. Known hypersensitivity to favipiravir, its metabolites or any excipients 7. Severe co-morbidities including: patients with severe hepatic impairment, defined as: ⢠greater than Child-Pugh grade A ⢠AST or ALT > 5 x ULN ⢠AST or ALT >3 x ULN and Total Bilirubin > 2xULN 8. More than 96 hours since first positive COVID-19 test sample was taken 9. Unable to discontinue contra-indicated concomitant medications This is a multi-centre trial, patients will be recruited from in-patients and outpatients from three Glasgow hospitals: Royal Alexandra Hospital; Queen Elizabeth University Hospital; and the Glasgow Royal Infirmary. INTERVENTION AND COMPARATOR: Patients randomised to the experimental arm of GETAFIX will receive standard treatment for COVID-19 at the discretion of the treating clinician plus favipiravir. These patients will receive a loading dose of favipiravir on day 1 of 3600mg (1800mg 12 hours apart). On days 2-10, patients in the experimental arm will receive a maintenance dose of favipiravir of 800mg 12 hours apart (total of 18 doses). Patients randomised to the control arm of the GETAFIX trial will receive standard treatment for COVID-19 at the discretion of the treating clinician. MAIN OUTCOMES: The primary outcome being assessed in the GETAFIX trial is the efficacy of favipiravir in addition to standard treatment in patients with COVID-19 in reducing the severity of disease compared to standard treatment alone. Disease severity will be assessed using WHO COVID 10 point ordinal severity scale at day 15 +/- 48 hours. All randomised participants will be followed up until death or 60 days post-randomisation (whichever is sooner). RANDOMISATION: Patients will be randomised 1:1 to the experimental versus control arm using computer generated random sequence allocation. A minimisation algorithm incorporating a random component will be used to allocate patients. The factors used in the minimisation will be: site, age (16-50/51-70/71+), history of hypertension or currently obsess (BMI>30 or obesity clinically evident; yes/no), 7 days duration of symptoms (yes/no/unknown), sex (male/female), WHO COVID-19 ordinal severity score at baseline (1/2or 3/4). BLINDING (MASKING): No blinding will be used in the GETAFIX trial. Both participants and those assessing outcomes will be aware of treatment allocation. NUMBERS TO BE RANDOMISED (SAMPLE SIZE): In total, 302 patients will be randomised to the GETAFIX trial: 151 to the control arm and 151 to the experimental arm. There will be an optional consent form for patients who may want to contribute to more frequent PK and PD sampling. The maximum number of patients who will undergo this testing will be sixteen, eight males and eight females. This option will be offered to all patients who are being treated in hospital at the time of taking informed consent, however only patients in the experimental arm of the trial will be able to undergo this testing. TRIAL STATUS: The current GETAFIX protocol is version 4.0 12th September 2020. GETAFIX opened to recruitment on 26th October 2020 and will recruit patients over a period of approximately six months. TRIAL REGISTRATION: GETAFIX was registered on the European Union Drug Regulating Authorities Clinical Trials (EudraCT) Database on 15th April 2020; Reference number 2020-001904-41 ( https://www.clinicaltrialsregister.eu/ctr-search/trial/2020-001904-41/GB ). GETAFIX was registered on ISRCTN on 7th September 2020; Reference number ISRCTN31062548 ( https://www.isrctn.com/ISRCTN31062548 ). FULL PROTOCOL: The full protocol is attached as an additional file, accessible from the Trials website (Additional file 1). In the interest in expediting dissemination of this material, the familiar formatting has been eliminated; this Letter serves as a summary of the key elements of the full protocol. The study protocol has been reported in accordance with the Standard Protocol Items: Recommendations for Clinical Interventional Trials (SPIRIT) guidelines (see Additional file 2).
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Amidas/uso terapêutico , Antivirais/uso terapêutico , Infecções por Coronavirus/tratamento farmacológico , Pneumonia Viral/tratamento farmacológico , Pirazinas/uso terapêutico , Adulto , Amidas/administração & dosagem , Amidas/farmacocinética , Amidas/farmacologia , Antivirais/administração & dosagem , Antivirais/farmacocinética , Antivirais/farmacologia , Betacoronavirus/genética , Betacoronavirus/isolamento & purificação , COVID-19 , Estudos de Casos e Controles , Infecções por Coronavirus/classificação , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/virologia , Feminino , Hospitalização , Humanos , Masculino , Pandemias/classificação , Pneumonia Viral/classificação , Pneumonia Viral/epidemiologia , Pneumonia Viral/virologia , Pirazinas/administração & dosagem , Pirazinas/farmacocinética , Pirazinas/farmacologia , SARS-CoV-2 , Segurança , Escócia/epidemiologia , Índice de Gravidade de Doença , Resultado do TratamentoRESUMO
BACKGROUND: Graves' disease is routinely treated with antithyroid drugs, radioiodine, or surgery, but whether the choice of initial therapy influences long-term outcomes is uncertain. We evaluated cardiovascular morbidity and mortality according to the method and effectiveness of primary therapy in Graves' disease. METHODS: In this retrospective cohort study, we identified patients with hyperthyroidism, diagnosed between Jan 1, 1998, and Dec 31, 2013, from a thyroid-stimulating hormone (TSH)-receptor antibody (TRAb) test register in south Wales, UK, and imported their clinical data into the All-Wales Secure Anonymised Information Linkage (SAIL) Databank (Swansea University, Swansea, UK). Patients with Graves' disease, defined by positive TRAb tests, were selected for the study, and their clinical data were linked with outcomes in SAIL. We had no exclusion criteria. Patients were matched by age and sex to a control population (1:4) in the SAIL database. Patients were grouped by treatment within 1 year of diagnosis into the antithyroid drug group, radioiodine with resolved hyperthyroidism group (radioiodine group A), or radioiodine with unresolved hyperthyroidism group (radioiodine group B). We used landmark Kaplan-Meier and Cox regression models to analyse the association of treatment with the primary outcome of all-cause mortality and the secondary outcome of major adverse cardiovascular events (myocardial infarction, heart failure, ischaemic stroke, or death) with the landmark set at 1 year after diagnosis. We analysed the association between outcomes and concentration of TSH using Cox regression and outcomes and free thyroxine (FT4) concentration using restricted cubic-spline regression models. FINDINGS: We extracted patient-level data on 4189 patients (3414 [81·5%] females and 775 [18·5%] males) with Graves' disease and 16â756 controls (13â656 [81·5%] females and 3100 [18·5%] males). In landmark analyses, 3587 patients were in the antithyroid drug group, 250 were in radioiodine group A, 182 were in radioiodine group B. Patients had increased all-cause mortality compared with controls (hazard ratio [HR] 1·22, 95% CI 1·05-1·42). Compared with patients in the antithyroid drug group, mortality was lower among those in radioiodine group A (HR 0·50, 95% CI 0·29-0·85), but not for those in radioiodine group B (HR 1·51, 95% CI 0·96-2·37). Persistently low TSH concentrations at 1 year after diagnosis were associated with increased mortality independent of treatment method (HR 1·55, 95% CI 1·08-2·24). Spline regressions showed a positive non-linear relationship between FT4 concentrations at 1 year and all-cause mortality. INTERPRETATION: Regardless of the method of treatment, early and effective control of hyperthyroidism among patients with Graves' disease is associated with improved survival compared with less effective control. Rapid and sustained control of hyperthyroidism should be prioritised in the management of Graves' disease and early definitive treatment with radioiodine should be offered to patients who are unlikely to achieve remission with antithyroid drugs alone. FUNDING: National Institute for Social Care and Health Research, Wales.
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Antitireóideos/efeitos adversos , Doenças Cardiovasculares/mortalidade , Doença de Graves/terapia , Radioisótopos do Iodo/efeitos adversos , Prontuários Médicos/estatística & dados numéricos , Tireoidectomia/mortalidade , Adulto , Idoso , Biomarcadores/análise , Doenças Cardiovasculares/etiologia , Estudos de Casos e Controles , Terapia Combinada , Comorbidade , Feminino , Seguimentos , Doença de Graves/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Adulto JovemRESUMO
Postpartum depression (PPD) is a mental health disorder that affects approximately 20% of all new mothers. PPD frequently co-occurs with and is exacerbated by trauma, particularly for women from vulnerable populations. Trauma-informed care (TIC) is a best practice that recognizes the importance of, and takes steps to promote recovery from, trauma while preventing retraumatization. Despite its potential utility, there is limited research published on TIC, including how TIC is operationalized across practice settings. Further, despite the prevalence and negative effects of untreated PPD, to date there have been limited articles published on TIC and PPD. The purpose of this article is to provide a TIC framework for service delivery for women diagnosed with PPD including explicit strategies for how TIC should be structured across roles, settings, and systems. Implications for health practice, policy, and future research are provided.
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Depressão Pós-Parto/psicologia , Depressão Pós-Parto/terapia , Mães/psicologia , Trauma Psicológico/terapia , Serviço Social/métodos , Depressão Pós-Parto/epidemiologia , Feminino , Humanos , Prevalência , Trauma Psicológico/epidemiologia , Trauma Psicológico/psicologiaRESUMO
Riparian and aquatic habitats support biodiversity and key environmental processes in semi-arid and arid landscapes, but stressors such as conventional livestock grazing, wildfire, and drought can degrade their condition. To enhance habitat for fish and wildlife and increase resiliency in these critical areas, land managers in the interior western United States increasingly use alternative grazing strategies, beaver management, or beaver dam surrogates as low-effort, low-expense restoration approaches. In this study we used historical archives of satellite and aerial imagery spanning three decades to characterize riparian vegetation productivity and document beaver dam occurrences, then evaluated vegetation productivity relative to land management associated with livestock grazing and beaver dam densities while accounting for climate and wildfire. After controlling for stream characteristics such as stream size, elevation, and stream slope, we demonstrate a positive response of riparian area vegetation to conservation-oriented grazing approaches and livestock exclosures, extensive beaver dam development, increased precipitation, and lack of wildfire. We show that livestock management which emphasizes riparian recovery objectives can be an important precursor to beaver activity and describe 11-39% increases in floodplain vegetation productivity where conservation-oriented grazing approaches or livestock exclosures and high beaver activity occur together on low-gradient sites. Land management decisions can therefore potentially confer resiliency to riparian areas under changing and variable climate conditions-the increased vegetation productivity resulting from conservation-oriented grazing or exclosures and high amounts of beaver activity at our sites is the equivalent to moving conventionally-grazed, low-gradient sites without beaver up at least 250 m in elevation or increasing water year precipitation by at least 250 mm.
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Criação de Animais Domésticos , Conservação dos Recursos Naturais , Gado , Roedores , Animais , Animais Selvagens , Biodiversidade , Clima , Secas , Ecossistema , Hidrobiologia , Estações do Ano , ÁguaRESUMO
Cortisol is a steroid hormone produced in response to stress. It is essential for maintaining health and wellbeing and leads to significant morbidity when deficient or present in excess. It is lipophilic and is transported bound to cortisol-binding globulin (CBG) and albumin; a small fraction (â¼10%) of total serum cortisol is unbound and biologically active. Serum cortisol assays measure total cortisol and their results can be misleading in patients with altered serum protein concentrations. Automated immunoassays are used to measure cortisol but lack specificity and show significant inter-assay differences. Liquid chromatography - tandem mass spectrometry (LC-MS/MS) offers improved specificity and sensitivity; however, cortisol cut-offs used in the short Synacthen and Dexamethasone suppression tests are yet to be validated for these assays. Urine free cortisol is used to screen for Cushing's syndrome. Unbound cortisol is excreted unchanged in the urine and 24-h urine free cortisol correlates well with mean serum-free cortisol in conditions of cortisol excess. Urine free cortisol is measured predominantly by immunoassay or LC-MS/MS. Salivary cortisol also reflects changes in unbound serum cortisol and offers a reliable alternative to measuring free cortisol in serum. LC-MS/MS is the method of choice for measuring salivary cortisol; however, its use is limited by the lack of a single, validated reference range and poorly standardized assays. This review examines the methods available for measuring cortisol in serum, urine and saliva, explores cortisol in disease and considers the difficulties of measuring cortisol in acutely unwell patients and in neonates.
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Doença de Addison/diagnóstico , Síndrome de Cushing/diagnóstico , Hidrocortisona , Saliva/química , Doença de Addison/sangue , Doença de Addison/patologia , Doença de Addison/urina , Hormônio Adrenocorticotrópico/sangue , Hormônio Adrenocorticotrópico/urina , Adulto , Cromatografia Líquida de Alta Pressão/normas , Ritmo Circadiano/fisiologia , Hormônio Liberador da Corticotropina/sangue , Hormônio Liberador da Corticotropina/urina , Síndrome de Cushing/sangue , Síndrome de Cushing/patologia , Síndrome de Cushing/urina , Metabolismo Energético/fisiologia , Feminino , Cromatografia Gasosa-Espectrometria de Massas/normas , Humanos , Hidrocortisona/sangue , Hidrocortisona/urina , Imunoensaio/normas , Lactente , Masculino , Variações Dependentes do Observador , Reprodutibilidade dos Testes , Fatores Sexuais , Estresse FisiológicoRESUMO
Patients with differentiated thyroid cancer (DTC) usually have an excellent prognosis. Following surgical and radioiodine treatment to remove the cancer cells and suppressive doses of levothyroxine, long-term follow-up, including measurement of serum thyroglobulin (Tg) using a sensitive assay is required to detect recurrence. To interpret Tg results clinicians need to know the corresponding serum TSH concentration, have an appreciation of the clearance of Tg from patient serum following various interventions and the limitations of its measurement. The limitations of Tg immunoassay are well described and include potential interference from TgAb. For the majority of patients with DTC who are TgAb-negative, Tg measurement remains the most useful method of follow-up. For the TgAb-positive minority, interference and the possibility of producing erroneous results is a concern. Some assays are less badly affected than others and laboratories are advised to choose their assays carefully. Laboratories have sought to identify interferences using measurement of TgAb, lack of concordance between RIAs and immunometric assays and recovery of added Tg. More recently LC-MSMS assays to quantify Tg have been developed. They are not currently as sensitive as Tg immunoassays and it is likely these assays will, like immunoassays, be limited by Tg heterogeneity and standardization issues, although initial evaluations indicate that they may have value in the clinical setting as a second line test in antibody-positive DTC patients in whom Tg is unmeasurable by immunoassay.
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Adenocarcinoma/diagnóstico , Biomarcadores Tumorais/sangue , Recidiva Local de Neoplasia/diagnóstico , Tireoglobulina/sangue , Neoplasias da Glândula Tireoide/diagnóstico , Adenocarcinoma/imunologia , Adenocarcinoma/radioterapia , Adenocarcinoma/cirurgia , Adulto , Cromatografia Líquida/métodos , Cromatografia Líquida/normas , Feminino , Humanos , Imunoensaio/normas , Imunoglobulinas Estimuladoras da Glândula Tireoide/sangue , Radioisótopos do Iodo/uso terapêutico , Recidiva Local de Neoplasia/imunologia , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/radioterapia , Prognóstico , Radioimunoensaio/normas , Espectrometria de Massas em Tandem/métodos , Espectrometria de Massas em Tandem/normas , Glândula Tireoide/efeitos dos fármacos , Glândula Tireoide/imunologia , Glândula Tireoide/patologia , Glândula Tireoide/cirurgia , Neoplasias da Glândula Tireoide/imunologia , Neoplasias da Glândula Tireoide/radioterapia , Neoplasias da Glândula Tireoide/cirurgiaRESUMO
This article identifies variables at the micro/individual, mezzo/partner/spouse and family, and macro/health care-system levels that inhibit mothers at risk for perinatal mood disorders from accessing health and mental health care services. Specific recommendations are made for conducting thorough biopsychosocial assessments that address the mothers' micro-, mezzo-, and macro-level contexts. Finally, the authors provide suggestions for how to intervene at the various levels to remove access barriers for mothers living with perinatal mood disorders as well as their families.
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Serviços de Saúde da Criança/organização & administração , Família/psicologia , Acessibilidade aos Serviços de Saúde , Serviços de Saúde Materna/organização & administração , Transtornos do Humor/terapia , Mães/psicologia , Assistência Perinatal/organização & administração , Feminino , Humanos , Lactente , Recém-Nascido , Gravidez , Apoio Social , Serviço Social , Estados UnidosRESUMO
Cell phone mobile application ("app") use has risen dramatically within the past several years. Many individuals access apps to address mental health issues. Unlike individuals from privileged backgrounds, individuals from oppressed backgrounds may rely on apps rather than costly mental health treatment. To date, very little research has been published evaluating mental health apps' effectiveness. This paper focuses on three methods through which grounded theory can facilitate app development and evaluation for people underrepresented in mental health care. Recommendations are made to advance mobile app technology that will help clinicians provide effective treatment, and consumers to realize positive treatment outcomes.
RESUMO
Clinical supervision is a formal process of professional support, reflection and learning that contributes to individual development. First Community Health and Care is committed to providing clinical supervision to nurses and allied healthcare professionals to support the provision and maintenance of high-quality care. In 2012, we developed new guidelines for nurses and AHPs on supervision, incorporating a clinical supervision framework. This offers a range of options to staff so supervision accommodates variations in work settings and individual learning needs and styles.
Assuntos
Atitude do Pessoal de Saúde , Competência Clínica , Enfermagem em Saúde Comunitária/organização & administração , Modelos de Enfermagem , Supervisão de Enfermagem/organização & administração , Guias de Prática Clínica como Assunto , Humanos , Reino UnidoRESUMO
Identification of differentiated thyroid cancer (DTC) is becoming increasingly common. Patients usually have an excellent prognosis. Most undergo total thyroidectomy, radioiodine ablation and treatment with suppressive doses of levothyroxine. Patients require long term follow-up which includes measurement of serum thyroglobulin (Tg). Interpretation of serum Tg requires knowledge of the concurrent thyroid stimulating hormone (TSH) concentration, as secretion is TSH dependant, and an awareness of the limitations of the methods used to measure it. These limitations include the heterogeneity of Tg in serum, the ability of assays to recognise forms of Tg secreted by a tumour, assay biases and not least the potential for interference in immunoassays for Tg from endogenous thyroglobulin antibodies (TgAbs) in patient serum. This review considers what the clinician wants to know and how Tg results can be interpreted in light of an awareness of assay limitations.