220 research outputs found

    The burden of self-reported antibiotic allergies in health care and how to address it: A systematic review of the evidence

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    Background: Antibiotics are the first-line treatment for bacterial infections; however, overuse and inappropriate prescribing have made antibiotics less effective with increased antimicrobial resistance. Unconfirmed reported antibiotic allergy labels create a significant barrier to optimal antimicrobial stewardship in health care, with clinical and economic implications. Objective: A systematic review was conducted to summarize the impact of patient-reported antibiotic allergy on clinical outcomes and various strategies that have been employed to effectively assess and remove these allergy labels, improving patient care. Methods: The review was undertaken using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A critical appraisal was conducted on all studies and a narrative synthesis was performed to identify themes. Results: Four themes emerged: the prevalence of antibiotic allergy, impact of antibiotic allergy on antimicrobial prescribing, impact of antibiotic allergy on clinical outcomes, and delabeling strategies to improve clinical outcomes. Of the 32 studies, including 1,089,675 participants, the prevalence of reported antibiotic allergy was between 5% and 35%. Patients with a reported antibiotic allergy had poorer concordance with prescribing guidelines in 30% to 60% of cases, with a higher use of alternatives such as quinolone, tetracycline, macrolide, lincosamide, and carbapenem and lower use of beta-lactam antibiotics. Antibiotic allergy delabeling was identified as an intervention and recommendation to advance the state of the science. Conclusions: There is substantial evidence within the literature that antibiotic allergy labels significantly impact patient clinical outcomes and a consensus that systematic assessment of reported antibiotic allergies, commonly referred to as delabeling, improves the clinical management of patients

    Covariant derivative expansion of Yang-Mills effective action at high temperatures

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    Integrating out fast varying quantum fluctuations about Yang--Mills fields A_i and A_4, we arrive at the effective action for those fields at high temperatures. Assuming that the fields A_i and A_4 are slowly varying but that the amplitude of A_4 is arbitrary, we find a non-trivial effective gauge invariant action both in the electric and magnetic sectors. Our results can be used for studying correlation functions at high temperatures beyond the dimensional reduction approximation, as well as for estimating quantum weights of classical static configurations such as dyons.Comment: Minor changes. References added. Paper accepted for publication in Phys.Rev.

    Lentivirus-mediated antagomir expression for specific inhibition of miRNA function

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    Micro RNAs (miRNA) regulate gene expression by hybridization and recruitment of multi-protein complexes to complementary mRNA target sequences. miRNA function can transiently be antagonized by antagomirs—chemically modified oligonucleotides complementary to individual miRNAs. Here, we describe the induction of stable loss-of-function phenotypes for specific miRNAs by lentivirus-mediated antagomir expression. Lentivirally expressed antagomirs are transcribed from a H1-promoter located within the lentiviral 3â€ČLTR and were directed against miRNAs encoded on the polycistronic miR17-92 transcript. Functional silencing of miR-18a, miR-19b and miR-20a by the corresponding antagomirs specifically relieves miRNA-mediated reporter gene repression. Inhibition of miRNA function correlates to reduction of ‘miRNA’ amplification by miRNA-specific quantitative RT-PCR. Furthermore, protein expression of E2F-1, a known miR-20 target, is enhanced by lentivirally expressed anti-miR-20 antagomirs in a dose-dependent manner, whereas over-expression of miR-20a reduces E2F-1 levels. Finally, combined over-expression of specific miRNAs and antagomirs reveals individual and complementary functions of miR-18a and miR-20a and demonstrates specific miRNA impact on cell proliferation in a cell culture model

    Refinancing MFIs with Market Power: Theory and Evidence

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    Microfinance investment vehicles (MIVs) play an increasingly important role as a source of funding for microfinance institutions (MFIs). This paper presents theory and evidence on the relation between the use of MIV capital and MFI market power. We present a model in which MIVs are social-minded in that they do not lend to MFIs which exploit their market power in the market for microcredit. Consistent with the theoretical model, we find empirically that measures of MFI market power are negatively related to the likelihood of using MIV capital. This suggests that MIVs play an effective role in promoting social objectives in microfinance

    Clinical Impact of Physical Activity and Cough on Disease Progression in Fibrotic Interstitial Lung Disease

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    Physical activity limitations and cough are common in patients with interstitial lung disease (ILD), potentially leading to reduced health-related quality of life. We aimed to compare physical activity and cough between patients with subjective, progressive idiopathic pulmonary fibrosis (IPF) and fibrotic non-IPF ILD. In this prospective observational study, wrist accelerometers were worn for seven consecutive days to track steps per day (SPD). Cough was evaluated using a visual analog scale (VAScough) at baseline and weekly for six months. We included 35 patients (IPF: n = 13; non-IPF: n = 22; mean ± SD age 61.8 ± 10.8 years; FVC 65.3 ± 21.7% predicted). Baseline mean ± SD SPD was 5008 ± 4234, with no differences between IPF and non-IPF ILD. At baseline, cough was reported by 94.3% patients (mean ± SD VAScough 3.3 ± 2.6). Compared to non-IPF ILD, patients with IPF had significantly higher burden of cough (p = 0.020), and experienced a greater increase in cough over six months (p = 0.009). Patients who died or underwent lung transplantation (n = 5), had significantly lower SPD (p = 0.007) and higher VAScough (p = 0.047). Long-term follow up identified VAScough (HR: 1.387; 95%-CI 1.081–1.781; p = 0.010) and SPD (per 1000 SPD: HR 0.606; 95%-CI: 0.412–0.892; p = 0.011) as significant predictors for transplant-free survival. In conclusion, although activity didn’t differ between IPF and non-IPF ILD, cough burden was significantly greater in IPF. SPD and VAScough differed significantly in patients who subsequently experienced disease progression and were associated with long-term transplant-free survival, calling for better acknowledgement of both parameters in disease management

    Variability of forced vital capacity in progressive interstitial lung disease: a prospective observational study

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    BACKGROUND Fibrotic interstitial lung disease (ILD) is often associated with poor outcomes, but has few predictors of progression. Daily home spirometry has been proposed to provide important information about the clinical course of idiopathic pulmonary disease (IPF). However, experience is limited, and home spirometry is not a routine component of patient care in ILD. Using home spirometry, we aimed to investigate the predictive potential of daily measurements of forced vital capacity (FVC) in fibrotic ILD. METHODS In this prospective observational study, patients with fibrotic ILD and clinical progression were provided with home spirometers for daily measurements over 6~months. Hospital based spirometry was performed after three and 6~months. Disease progression, defined as death, lung transplantation, acute exacerbation or FVC decline \textgreater 10% relative was assessed in the cohort. RESULTS From May 2017 until August 2018, we included 47 patients (IPF n = 20; non-IPF n = 27). Sufficient daily measurements were performed by 85.1% of the study cohort. Among these 40 patients (IPF n = 17; non-IPF n = 23), who had a mean ± SD age of 60.7 ± 11.3 years and FVC 64.7 ± 21.7% predicted (2.4 ± 0.8 L), 12 patients experienced disease progression (death: n =~2; lung transplantation: n = 3; acute exacerbation: n = 1; FVC decline \textgreater 10%: n = 6). Within the first 28 days, a group of patients had high daily variability in FVC, with 60.0% having a variation \geq5%. Patients with disease progression had significantly higher FVC variability than those in the stable group (median variability 8.6% vs. 4.8%; p = 0.002). Cox regression identified FVC variability as independently associated with disease progression when controlling for multiple confounding variables (hazard ratio: 1.203; 95% CI:1.050-1.378; p = 0.0076). CONCLUSIONS Daily home spirometry is feasible in IPF and non-IPF ILD and facilitates the identification of FVC variability, which was associated with disease progression

    Increasing impacts of land use on biodiversity and carbon sequestration driven by population and economic growth

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    Biodiversity and ecosystem service losses driven by land-use change are expected to intensify as a growing and more affluent global population requires more agricultural and forestry products, and teleconnections in the global economy lead to increasing remote environmental responsibility. By combining global biophysical and economic models, we show that, between the years 2000 and 2011, overall population and economic growth resulted in increasing total impacts on bird diversity and carbon sequestration globally, despite a reduction of land-use impacts per unit of gross domestic product (GDP). The exceptions were North America and Western Europe, where there was a reduction of forestry and agriculture impacts on nature accentuated by the 2007-2008 financial crisis. Biodiversity losses occurred predominantly in Central and Southern America, Africa and Asia with international trade an important and growing driver. In 2011, 33% of Central and Southern America and 26% of Africa's biodiversity impacts were driven by consumption in other world regions. Overall, cattle farming is the major driver of biodiversity loss, but oil seed production showed the largest increases in biodiversity impacts. Forestry activities exerted the highest impact on carbon sequestration, and also showed the largest increase in the 2000-2011 period. Our results suggest that to address the biodiversity crisis, governments should take an equitable approach recognizing remote responsibility, and promote a shift of economic development towards activities with low biodiversity impacts

    Touch Medicine - a complementary therapeutic approach exemplified by the treatment of depression

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    Skin-to-skin-contact presents the earliest sensory experience of men and animals. Deprivation of age-relevant touch experiences during infancy results in compromised psychosocial and biological development. The 2021 Nobel Prize in Physiology or Medicine has been awarded for the discoveries of receptors for temperature and touch. Clinical studies have demonstrated the benefit of professional salutary touch for prevention and treatment of various illnesses. However, in the present practice of medicine the application of salutary touch does not meet adequate interest. Proposing a new medical discipline "Touch Medicine" we link the findings of modern touch research to clinical medicine. The treatment of depression which we conceive primarily as a disease afflicting the body will serve as an example to demonstrate the usefulness of touch therapy. Controlled studies and systematic reviews have convincingly shown antidepressive, anxiolytic and analgesic effects of salutary touch. The effectiveness and efficacy of touch therapy has also been demonstrated in many areas such as neonatology, pediatrics, oncology, and geriatrics. We discuss the underlying mechanisms on various explanatory levels including interoceptive and oxytocinergic mechanisms as well as the role of C tactile afferent nerve fibers
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