58 research outputs found
Protocol for the PACE trial: A randomised controlled trial of adaptive pacing, cognitive behaviour therapy, and graded exercise as supplements to standardised specialist medical care versus standardised specialist medical care alone for patients with the chronic fatigue syndrome/myalgic encephalomyelitis or encephalopathy
<p>Abstract</p> <p>Background</p> <p>Chronic fatigue syndrome (CFS, also called myalgic encephalomyelitis/encephalopathy or ME) is a debilitating condition with no known cause or cure. Improvement may occur with medical care and additional therapies of pacing, cognitive behavioural therapy and graded exercise therapy. The latter two therapies have been found to be efficacious in small trials, but patient organisations' surveys have reported adverse effects. Although pacing has been advocated by patient organisations, it lacks empirical support. Specialist medical care is commonly provided but its efficacy when given alone is not established. This trial compares the efficacy of the additional therapies when added to specialist medical care against specialist medical care alone.</p> <p>Methods/Design</p> <p>600 patients, who meet operationalised diagnostic criteria for CFS, will be recruited from secondary care into a randomised trial of four treatments, stratified by current comorbid depressive episode and different CFS/ME criteria. The four treatments are standardised specialist medical care either given alone, or with adaptive pacing therapy or cognitive behaviour therapy or graded exercise therapy. Supplementary therapies will involve fourteen sessions over 23 weeks and a 'booster session' at 36 weeks. Outcome will be assessed at 12, 24, and 52 weeks after randomisation. Two primary outcomes of self-rated fatigue and physical function will assess differential effects of each treatment on these measures. Secondary outcomes include adverse events and reactions, subjective measures of symptoms, mood, sleep and function and objective measures of physical activity, fitness, cost-effectiveness and cost-utility. The primary analysis will be based on intention to treat and will use logistic regression models to compare treatments. Secondary outcomes will be analysed by repeated measures analysis of variance with a linear mixed model. All analyses will allow for stratification factors. Mediators and moderators will be explored using multiple linear and logistic regression techniques with interactive terms, with the sample split into two to allow validation of the initial models. Economic analyses will incorporate sensitivity measures.</p> <p>Discussion</p> <p>The results of the trial will provide information about the benefits and adverse effects of these treatments, their cost-effectiveness and cost-utility, the process of clinical improvement and the predictors of efficacy.</p
Polyfunctional T-Cell Responses Are Disrupted by the Ovarian Cancer Ascites Environment and Only Partially Restored by Clinically Relevant Cytokines
Host T-cell responses are associated with favorable outcomes in epithelial ovarian cancer (EOC), but it remains unclear how best to promote these responses in patients. Toward this goal, we evaluated a panel of clinically relevant cytokines for the ability to enhance multiple T-cell effector functions (polyfunctionality) in the native tumor environment.Experiments were performed with resident CD8+ and CD4+ T cells in bulk ascites cell preparations from high-grade serous EOC patients. T cells were stimulated with α-CD3 in the presence of 100% autologous ascites fluid with or without exogenous IL-2, IL-12, IL-18 or IL-21, alone or in combination. T-cell proliferation (Ki-67) and function (IFN-Îł, TNF-α, IL-2, CCL4, and CD107a expression) were assessed by multi-parameter flow cytometry. In parallel, 27 cytokines were measured in culture supernatants. While ascites fluid had variable effects on CD8+ and CD4+ T-cell proliferation, it inhibited T-cell function in most patient samples, with CD107a, IFN-Îł, and CCL4 showing the greatest inhibition. This was accompanied by reduced levels of IL-1ÎČ, IL-1ra, IL-9, IL-17, G-CSF, GM-CSF, Mip-1α, PDGF-bb, and bFGF in culture supernatants. T-cell proliferation was enhanced by exogenous IL-2, but other T-cell functions were largely unaffected by single cytokines. The combination of IL-2 with cytokines engaging complementary signaling pathways, in particular IL-12 and IL-18, enhanced expression of IFN-Îł, TNF-α, and CCL4 in all patient samples by promoting polyfunctional T-cell responses. Despite this, other functional parameters generally remained inhibited.The EOC ascites environment disrupts multiple T-cell functions, and exogenous cytokines engaging diverse signaling pathways only partially reverse these effects. Our results may explain the limited efficacy of cytokine therapies for EOC to date. Full restoration of T-cell function will require activation of signaling pathways beyond those engaged by IL-2, IL-12, IL-18, and IL-21
A comprehensive overview of radioguided surgery using gamma detection probe technology
The concept of radioguided surgery, which was first developed some 60 years ago, involves the use of a radiation detection probe system for the intraoperative detection of radionuclides. The use of gamma detection probe technology in radioguided surgery has tremendously expanded and has evolved into what is now considered an established discipline within the practice of surgery, revolutionizing the surgical management of many malignancies, including breast cancer, melanoma, and colorectal cancer, as well as the surgical management of parathyroid disease. The impact of radioguided surgery on the surgical management of cancer patients includes providing vital and real-time information to the surgeon regarding the location and extent of disease, as well as regarding the assessment of surgical resection margins. Additionally, it has allowed the surgeon to minimize the surgical invasiveness of many diagnostic and therapeutic procedures, while still maintaining maximum benefit to the cancer patient. In the current review, we have attempted to comprehensively evaluate the history, technical aspects, and clinical applications of radioguided surgery using gamma detection probe technology
Invading and expanding : range dynamics and ecological consequences of the Greater White-Toothed Shrew (Crocidura russula) invasion in Ireland
Establishing how invasive species impact upon pre-existing species is a fundamental question in ecology and conservation
biology. The greater white-toothed shrew (Crocidura russula) is an invasive species in Ireland that was first recorded in 2007
and which, according to initial data, may be limiting the abundance/distribution of the pygmy shrew (Sorex minutus),
previously Irelandâs only shrew species. Because of these concerns, we undertook an intensive live-trapping survey (and
used other data from live-trapping, sightings and bird of prey pellets/nest inspections collected between 2006 and 2013) to
model the distribution and expansion of C. russula in Ireland and its impacts on Irelandâs small mammal community. The
main distribution range of C. russula was found to be approximately 7,600 km2 in 2013, with established outlier populations
suggesting that the species is dispersing with human assistance within the island. The species is expanding rapidly for a
small mammal, with a radial expansion rate of 5.5 km/yr overall (2008â2013), and independent estimates from live-trapping
in 2012â2013 showing rates of 2.4â14.1 km/yr, 0.5â7.1 km/yr and 0â5.6 km/yr depending on the landscape features
present. S. minutus is negatively associated with C. russula. S. minutus is completely absent at sites where C. russula is
established and is only present at sites at the edge of and beyond the invasion range of C. russula. The speed of this invasion
and the homogenous nature of the Irish landscape may mean that S. minutus has not had sufficient time to adapt to the
sudden appearance of C. russula. This may mean the continued decline/disappearance of S. minutus as C. russula spreads
throughout the island
College and University Governance: The University of Iowa Governing Boardâs Selection of a President
The article reports how Bruce Harreld, one of four finalists identified by the search committee for the presidency of the University of Iowa, addressed a town hall meeting of the university community on September 1, 2015. On September 23, the Faculty Assembly of the College of Liberal Arts and Sciences, the elected representative body of the college\u27s faculty, endorsed the faculty senate\u27s vote of no confidence
Promoting positive and supportive interactions between preschoolers : An analysis of group-oriented contingencies
This study examined the effects of several procedures on the social and supportive interactions of two preschoolers with handicaps and their socially competent peers. An alternating individual and group-oriented reinforcement contingency produced equal increases in the target children's interactions with peers. However, neither procedure generated consistent levels of supportive peer behaviors. Following a baseline phase where social and supportive interactions decreased to lower levels, two socially competent children were taught to deliver high levels of supportive prompts to their peers during a dramatic play activity (e.g., "Ask [target child] to come and join our picnic"). Results indicated that peers complied with these statements by increasing the frequency of social behaviors directed to the target children. A final interdependent group contingency condition maintained both social and supportive interactions at high levels. These results are discussed with regard to the efficacy of group-oriented contingencies
Reconstruction of Osteomyelitis Defects of the Craniofacial Skeleton
Osteomyelitis of the craniofacial skeleton closely resembles osteomyelitis elsewhere in the body in its pathophysiology and medical management; subsequent reconstruction after debridement remains distinctly challenging. The goals of reconstruction must include the restoration of the complex and readily visible morphology of the cranium and face, as well as the adequate return of vital sensory, expressive, and digestive functions. In this article, the various reconstructive modalities will be discussed including pedicled and nonpedicled flaps with or without an osseous component, nonvascularized bone grafts, alloplastic implants, and bone regeneration using protein therapy. Although reconstruction of craniofacial defects after osteomyelitis commonly proves formidable, the satisfactory return of form and function remains a plausible reconstructive goal
Complications following destruction of the cloth covering of a Starr-Edwards aortic valve prosthesis
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