36 research outputs found
“Too Happy for Letter-Writing:” Irresolute and Distracted Suitors in Mansfield Park
This paper uses a new historical lens to examine the following question: In what ways do Jane Austen’s male characters adhere to or resist eighteenth century letter writing conventions, and what motivations associated with eighteenth century masculinity influence the content and import of their letters? I juxtapose Austen’s novels and the letters within them with non-literary texts such as conduct books written in epistolary form and eighteenth century letter writing manuals, which contain sample letters that serve as models for correspondence. My paper focuses on the novel Mansfield Park with an emphasis on Edmund Bertram and Henry Crawford’s letters. I argue that, because letters are linked to the performance of masculine duty and rituals of courtship, Edmund and Henry’s letters, or Austen\u27s strategic omission of their letters, demonstrate their undermined masculine status. Edmund’s letter writing reveals that he is simply a conflicted hero, and Henry’s manipulation of and disregard for conventions of letter writing reveals that he is a conniving and ungentlemanly character. Austen seems to suggest that an ideal masculine figure is one who upholds a traditional and upright British masculinity, yet who can also express his feelings. Letters offer the perfect medium through which her male characters can negotiate this. Henry Crawford fails to achieve this ideal because he does not respect the epistolary convention and consequently fails to negotiate his feelings for Fanny. Edmund’s letter to Fanny demonstrates both his ability to write his feelings and his faith in Fanny, which he eventually recognizes as love, and he reclaims his masculine ideal in his union with her
In vivo proton magnetic resonance spectroscopy reveals region specific metabolic responses to SIV infection in the macaque brain
<p>Abstract</p> <p>Background</p> <p><it>In vivo </it>proton magnetic resonance spectroscopy (<sup>1</sup>H-MRS) studies of HIV-infected humans have demonstrated significant metabolic abnormalities that vary by brain region, but the causes are poorly understood. Metabolic changes in the frontal cortex, basal ganglia and white matter in 18 SIV-infected macaques were investigated using MRS during the first month of infection.</p> <p>Results</p> <p>Changes in the N-acetylaspartate (NAA), choline (Cho), <it>myo</it>-inositol (MI), creatine (Cr) and glutamine/glutamate (Glx) resonances were quantified both in absolute terms and relative to the creatine resonance. Most abnormalities were observed at the time of peak viremia, 2 weeks post infection (wpi). At that time point, significant decreases in NAA and NAA/Cr, reflecting neuronal injury, were observed only in the frontal cortex. Cr was significantly elevated only in the white matter. Changes in Cho and Cho/Cr were similar across the brain regions, increasing at 2 wpi, and falling below baseline levels at 4 wpi. MI and MI/Cr levels were increased across all brain regions.</p> <p>Conclusion</p> <p>These data best support the hypothesis that different brain regions have variable intrinsic vulnerabilities to neuronal injury caused by the AIDS virus.</p
A multicentric consortium study demonstrates that dimethylarginine dimethylaminohydrolase 2 is not a dimethylarginine dimethylaminohydrolase
Dimethylarginine dimethylaminohydrolase 1 (DDAH1) protects against cardiovascular disease by metabolising the risk factor asymmetric dimethylarginine (ADMA). However, the question whether the second DDAH isoform, DDAH2, directly metabolises ADMA has remained unanswered. Consequently, it is still unclear if DDAH2 may be a potential target for ADMA-lowering therapies or if drug development efforts should focus on DDAH2's known physiological functions in mitochondrial fission, angiogenesis, vascular remodelling, insulin secretion, and immune responses. Here, an international consortium of research groups set out to address this question using in silico, in vitro, cell culture, and murine models. The findings uniformly demonstrate that DDAH2 is incapable of metabolising ADMA, thus resolving a 20-year controversy and providing a starting point for the investigation of alternative, ADMA-independent functions of DDAH2
The politics and aesthetics of commemoration: national days in southern Africa
The contributions to the special section in this issue study recent independence celebrations and other national days in South
Africa, Namibia, Zimbabwe, Madagascar and the Democratic Republic of Congo. They explore the role of national days in
state-making and nation-building, and examine the performativity of nationalism and the role of performances in national
festivities. Placing the case studies in a broader, comparative perspective, the introduction first discusses the role of the state in
national celebrations, highlighting three themes: firstly, the political power-play and contested politics of memory involved in
the creation of a country’s festive calendar; secondly, the relationship between state control of national days and civic or
popular participation or contestation; and thirdly, the complex relationship between regional and ethnic loyalties and national
identifications. It then turns to the role of performance and aesthetics in the making of nations in general, and in national
celebrations in particular. Finally, we look at the different formats and meanings of national days in the region and address the
question whether there is anything specific about national days in southern Africa as compared to other parts of the continent
or national celebrations world-wide.Web of Scienc
Evaluating the Psychometric Quality of Social Skills Measures: A Systematic Review
Introduction - Impairments in social functioning are associated with an array of adverse outcomes. Social skills measures are commonly used by health professionals to assess and plan the treatment of social skills difficulties. There is a need to comprehensively evaluate the quality of psychometric properties reported across these measures to guide assessment and treatment planning. Objective - To conduct a systematic review of the literature on the psychometric properties of social skills and behaviours measures for both children and adults. Methods - A systematic search was performed using four electronic databases: CINAHL, PsycINFO, Embase and Pubmed; the Health and Psychosocial Instruments database; and grey literature using PsycExtra and Google Scholar. The psychometric properties of the social skills measures were evaluated against the COSMIN taxonomy of measurement properties using pre-set psychometric criteria. Results - Thirty-Six studies and nine manuals were included to assess the psychometric properties of thirteen social skills measures that met the inclusion criteria. Most measures obtained excellent overall methodological quality scores for internal consistency and reliability. However, eight measures did not report measurement error, nine measures did not report cross-cultural validity and eleven measures did not report criterion validity. Conclusions - The overall quality of the psychometric properties of most measures was satisfactory. The SSBS-2, HCSBS and PKBS-2 were the three measures with the most robust evidence of sound psychometric quality in at least seven of the eight psychometric properties that were appraised. A universal working definition of social functioning as an overarching construct is recommended. There is a need for ongoing research in the area of the psychometric properties of social skills and behaviours instruments
Canagliflozin and renal outcomes in type 2 diabetes and nephropathy
BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years
Comparative Treatment Outcomes for Patients With Idiopathic Subglottic Stenosis.
To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked DownloadImportance: Surgical treatment comparisons in rare diseases are difficult secondary to the geographic distribution of patients. Fortunately, emerging technologies offer promise to reduce these barriers for research.
Objective: To prospectively compare the outcomes of the 3 most common surgical approaches for idiopathic subglottic stenosis (iSGS), a rare airway disease.
Design, setting, and participants: In this international, prospective, 3-year multicenter cohort study, 810 patients with untreated, newly diagnosed, or previously treated iSGS were enrolled after undergoing a surgical procedure (endoscopic dilation [ED], endoscopic resection with adjuvant medical therapy [ERMT], or cricotracheal resection [CTR]). Patients were recruited from clinician practices in the North American Airway Collaborative and an online iSGS community on Facebook.
Main outcomes and measures: The primary end point was days from initial surgical procedure to recurrent surgical procedure. Secondary end points included quality of life using the Clinical COPD (chronic obstructive pulmonary disease) Questionnaire (CCQ), Voice Handicap Index-10 (VHI-10), Eating Assessment Test-10 (EAT-10), the 12-Item Short-Form Version 2 (SF-12v2), and postoperative complications.
Results: Of 810 patients in this cohort, 798 (98.5%) were female and 787 (97.2%) were white, with a median age of 50 years (interquartile range, 43-58 years). Index surgical procedures were ED (n = 603; 74.4%), ERMT (n = 121; 14.9%), and CTR (n = 86; 10.6%). Overall, 185 patients (22.8%) had a recurrent surgical procedure during the 3-year study, but recurrence differed by modality (CTR, 1 patient [1.2%]; ERMT, 15 [12.4%]; and ED, 169 [28.0%]). Weighted, propensity score-matched, Cox proportional hazards regression models showed ED was inferior to ERMT (hazard ratio [HR], 3.16; 95% CI, 1.8-5.5). Among successfully treated patients without recurrence, those treated with CTR had the best CCQ (0.75 points) and SF-12v2 (54 points) scores and worst VHI-10 score (13 points) 360 days after enrollment as well as the greatest perioperative risk.
Conclusions and relevance: In this cohort study of 810 patients with iSGS, endoscopic dilation, the most popular surgical approach for iSGS, was associated with a higher recurrence rate compared with other procedures. Cricotracheal resection offered the most durable results but showed the greatest perioperative risk and the worst long-term voice outcomes. Endoscopic resection with medical therapy was associated with better disease control compared with ED and had minimal association with vocal function. These results may be used to inform individual patient treatment decision-making.Patient-Centered Outcomes Research Institute - PCOR
Age at onset as stratifier in idiopathic Parkinson’s disease – effect of ageing and polygenic risk score on clinical phenotypes
Several phenotypic differences observed in Parkinson’s disease (PD) patients have been linked to age at onset (AAO). We endeavoured to find out whether these differences are due to the ageing process itself by using a combined dataset of idiopathic PD (n = 430) and healthy controls (HC; n = 556) excluding carriers of known PD-linked genetic mutations in both groups. We found several significant effects of AAO on motor and non-motor symptoms in PD, but when comparing the effects of age on these symptoms with HC (using age at assessment, AAA), only positive associations of AAA with burden of motor symptoms and cognitive impairment were significantly different between PD vs HC. Furthermore, we explored a potential effect of polygenic risk score (PRS) on clinical phenotype and identified a significant inverse correlation of AAO and PRS in PD. No significant association between PRS and severity of clinical symptoms was found. We conclude that the observed non-motor phenotypic differences in PD based on AAO are largely driven by the ageing process itself and not by a specific profile of neurodegeneration linked to AAO in the idiopathic PD patients
The Effects of Physical Activity on the Signs and Symptoms of Inflammatory Bowel Disease
Introduction: Inflammatory Bowel Disease (IBD) generally describes several autoimmune disorders that involve inflammation of the gastrointestinal tract including Ulcerative Colitis (UC) and Crohn\u27s disease (CD). An estimated 3.1 million Americans are affected by IBD. Although the inflammation caused by IBD mainly affects the gastrointestinal tract, when IBD is exacerbated, the inflammation can become systemic. Consistent exercise is theorized to reduce chronic inflammation and reduce signs and symptoms of IBD. Objective: The aim of this meta-analysis is to examine the effects of physical activity on the signs and symptoms of IBD. Methods: A literary search was conducted using Cochrane library, PubMed, and Cinahl databases. Of the 1031 records identified, twelve articles met the inclusion criteria, with seven articles presenting data that could be meta-analyzed. The reported data from the seven included articles were standardized in order to compare dependent variables using Stata17 statistical package. Pooled effect sizes and 95% confidence intervals were obtained through the random effects model. The results were used to examine the effects of exercise on C-reactive protein (CRP), fecal calprotectin (FC), and IBD signs and symptoms related questionnaires. Results: Signs and symptoms questionnaires were standardized and compared which resulted in a low risk of heterogeneity of 0.00% (I2) and an effect size of 0.02 and 95% confidence interval of – 0.66 to 0.70 (p=0.96). Biomarkers were pooled, standardized, and compared, resulting in heterogeneity of 37.82% (I2) and an effect size of 0.01 with 95% confidence interval of –1.39 to 1.42 (p=0.98). Conclusions: These results suggest that exercise does not decrease the signs and symptoms in IBD patients