No description available.

Syfte. Syftet med studien var att utreda om rödbetsjuice ger en akut blodtryckssänkning 150 minuter efter intag samt om denna eventuella effekt skiljer sig mellan kvinnor och män. Metod och material. I studien inkluderades 27 deltagare som intog rödbetsjuice med 830 mg nitrater alternativt placebodryck. Samtliga deltagare var självrapporterat fria från kända kardiovaskulära sjukdomar, diabetes samt hypertoni. Blodtrycket togs innan samt 150 minuter efter intag av dryck. Resultat. Intag av rödbetsjuice gav en signifikant sänkning av det systoliska blodtrycket. Ingen sänkning kunde påvisas varken av det diastoliska blodtrycket för hela populationen eller separat i grupperna kvinnor respektive män som intog rödbetsjuice. Diskussion. Studien visade att rödbetsjuice kan sänka det systoliska blodtrycket, vilket föreslås bero på nitrater i rödbetsjuice som leder till bildning av kväveoxid. Studien hade flera begränsningar som kan ha påverkat resultaten såsom deltagarnas måltider och farmakologiska behandlingar. Jämfört med tidigare forskning visade denna studie både liknande och avvikande resultat. Slutsats. Arbetet visade att rödbetsjuice kan ge en akut sänkning av det systoliska blodtrycket men det krävs vidare forskning för att utreda om denna blodtryckssänkande effekt skiljer sig mellan kvinnor och män. / Aim. This study aimed to examine if beetroot juice induces an acute blood pressure reduction 150 minutes after consumption and if this potential effect differs between genders. Methods. Twenty-seven participants consumed beetroot juice with 830 mg nitrates or a placebo. All participants were self-reported free of known cardiovascular diseases, diabetes, and hypertension. Blood pressure was measured before and 150 minutes after ingestion. Results. Systolic blood pressure decreased significantly after consuming beetroot juice. There was no decrease observed in diastolic blood pressure for the total population nor in groups of women or men who ingested beetroot juice. Discussion. The study demonstrated that beetroot juice can lower systolic blood pressure, which is suggested to be due to the nitrates in beetroot juice leading to the formation of nitric oxide. The aim was achieved, but the study had several limitations that could have affected the results, such as participants' meals and pharmacological treatments. Compared to previous research, this study showed both similar and divergent results. Conclusion. The study showed that beetroot juice may acutely lower systolic blood pressure, but further research is needed to ascertain gender-specific effects.

Thesis (M.Tech.: Chiropractic)--Durban University of Technology, 2009 / Objective: The efficacy of manipulation as compared to placebo in the treatment of two groups of weight trainers with Acromioclavicular (AC) Joint Dysfunction. Methods: Twenty patients (n=20), using randomised sampling were allocated to two intervention groups. Patients in each group received four treatments each over a two-week period and assessed at initial, one week, two weeks and one month follow ups. Objective measures included Algometer and Inclinometer readings. Numerical Pain Rating Scales (NRS), Shoulder Rating Questionnaire (SRQ) and the Shoulder Pain and Disability Index (SPADI) measured subjective outcomes. Results: Manipulation demonstrated significant improvement in objective findings. Subjective outcomes did not show significant difference between the manipulation and placebo groups. Conclusion: Manipulation, when compared to placebo, can be considered as an effective treatment intervention for the treatment of AC joint dysfunction with particular reference to objective outcomes. Although, caution needs to be utilised in accepting this outcome due to limitations in sample size, subjective measure sensitivity and specificity as well as the stringency of the inclusion and exclusion criteria.

The term "attention placebo" has been used in an imprecise and often seemingly thoughtless way for decades, and it is often confusing to encounter "attention placebo group" in outcome studies. The purpose of this study was to investigate attention placebo empirically, focusing on anxiety or phobia related problems. The two aims were (1) to describe and summarize how researchers define attention placebo in empirical studies and the intervention procedures involved in these studies; and (2) to explore the possibility of estimating the magnitude of the attention placebo effects on anxiety or phobia related problems.A thorough literature search was carried out with the keywords of attention placebo synonyms and the resulting list of 1304 articles was screened for unique empirical articles on anxiety or phobia related problems. A total of 545 articles were identified as attention placebo empirical studies, and 83 involved anxiety or phobia related problems. These 83 constituent articles were coded for the purpose of qualitative overview, and 63 articles with sufficient data were included in the meta-analysis of attention placebo effects.The results of the qualitative overview of attention placebo on anxiety or phobia related problems showed that most articles did not discuss explicitly any rationale for using an attention placebo group, but simply included one as a comparison group. The arrangements for attention placebo interventions were diverse and often reflected little concern for emulating the nonspecific features of the treatment(s) of interest. Two meta-analyses were performed based on the comparison of attention placebo and a no-treatment control, and attention placebo and the verum. The overall estimated effect of attention placebo is Hedges's g=0.32, a small effect, significantly different from the effect size of the other control groups. Compared to the verum, the effects of attention placebo are not consistent in magnitude but were nearly all smaller than the effects of the verum treatments. Meta-regression and subgroup analyses indicated that estimating attention placebo effects is a sensible and meaningful research activity.In conclusion, attention placebo is not so much about attention, and it is possible to estimate the effects of attention placebo.

Resveratrol (RSV) is a natural compound that improves mitochondrial function and metabolic health in animal models. Thus far, RSV’s effects on metabolic outcomes in humans are controversial, and RSV’s acute mechanism has not yet been confirmed in vivo. This study aimed to evaluate the effect of an acute dose of RSV on insulin sensitivity and fatty acid oxidation, and to determine RSV’s mechanism of action in human skeletal muscle and adipose tissue. Overweight males (n=8; BMI, 30.5±3.6; VO2peak, 34.0±7.3 ml/kg) reported to the lab on 2 occasions and were provided a breakfast supplemented with 0.3g of RSV or a placebo pill. Experiments were performed in random order using a double blind crossover design. Gas exchange measures, blood samples, and skeletal muscle and adipose tissue biopsies were obtained before and 2 hours after the supplement meal. RSV acutely improved insulin sensitivity, but had no effect on fatty acid oxidation. Additionally, RSV supplementation had no effect on the intracellular signaling of key proteins proposed to mediate its effects in skeletal muscle and adipose tissue. Taken together, these results suggest a single dose of RSV can acutely enhance insulin sensitivity, but its mechanism of action is not conserved across species, and its intracellular signaling pathway is different in humans than previously thought. Due to its insulin sensitizing effect, RSV retains its clinical value, but further research is required to determine its most useful application for human metabolic health. / Thesis (Master, Kinesiology & Health Studies) -- Queen's University, 2013-06-06 13:30:03.522

Mini-dissertation submitted in compliance with the requirements of the Master's Degree in Technology: Homoeopathy, Durban University of Technology, 2006. / The purpose of this double-blind placebo-controlled study was to evaluate the relative and combined efficacy of the homoeopathic similimum, taken orally, and the topical application of a lotion made from the homoeopathic mother tinctures of Hypericum perforatum and Calendula officinalis in the treatment of venous leg ulcers. Venous hypertension in the lower limb, occurring from a variety of causes, leads to microcirculatory abnormalities which may permit the formation of a chronic ulcer (Zimmet, 1998). Venous leg ulcers are a cause of much debility, social isolation, depression, fears of loss of employment and income (Royal College of Nursing Institute, 1998). The mainstay of treatment at present is compression bandaging to reduce the venous pressure in the lower limb. Eighty percent of venous leg ulcers will heal within eight to twelve weeks with compression bandaging (Thomas, 1997). Homoeopathy is a system of medicine based on natural laws of healing, and recognizes the biophysical energy of an individual (also known as the vital force) as that which provides the normal protective defence mechanisms of the body, and is disturbed in disease, producing symptoms on the physical, mental and emotional levels (Vithoulkas, 1980). Many plants are known to have wound-healing properties (Curtis and Fraser, 2003). Calendula officinalis and Hypericum perforatum were considered the best plants in a homoeopathic lotion to be used on chronic venous leg ulcers, as they cover all the common problems associated with this type of wound, providing pain relief and anti-microbial activity (Lawless, 1995). In this study, homoeopathic mother tinctures of the herbs were used to make the lotion for topical application to the wounds. / M

Placebo’s (positive expectancies producing positive outcomes) and nocebo’s (negative expectancies producing negative outcomes) are real and measurable effects. Real as these effects may be, predicting individuals that may be susceptible to placebo/nocebo effects has been inconsistent. The present study examined whether measures designed to assess somatization (MSPQ), catastrophizing (PCS) and childhood trauma (CTQ) would predict placebo and nocebo membership. In addition, measures designed to assess anxiety (ASI) anxiety about pain (PASS) and depression (BDI) were evaluated to determine whether anxiety or depression mediates responsiveness. The Hargreaves Thermal Withdrawal test and the submaximal effort tourniquet technique were employed as pain vehicles for the measurement of group differences. No significant effects of planned analyses were observed. However, unplanned analyses of childhood trauma subscales indicated that physical and emotional abuse predicted placebo response. Additionally, emotional neglect trended toward predicting nocebo responsiveness. These results indicate that further studies, correcting for weaknesses, is warranted.

No description available.

Thesis advisor: Ronald K. Tacelli / This dissertation arose from concerns that the prevalent philosophy of materialism which reduces everything to matter has inadvertently contributed to the ecological destruction of the planet, and an impoverished understanding of human nature. Conceptual arguments and empirical data cry out for a philosophy beyond materialism (or its current avatar Physicalism) that moves us beyond 17th century classical science, making use of 20th century quantum science to better understand our world. Such a new philosophy would embed a new scientific paradigm that incorporates both the first person point of view and the third person "no point of view."The main issue I engage in this dissertation is whether consciousness can be explained by Physicalism. While functionalism, the dominant theory of Physicalism, answers many questions related to consciousness, it leaves major ones unanswered. I offer a critique of Physicalism using conceptual arguments and empirical data encompassing what I call the "chemistry of attention." I also offer innovative proposals toward a philosophical approach I term "Aspect Monism" that builds on earlier monist philosophies (Spinoza) while incorporating dualistic features, suggesting that this new approach would better account for consciousness. The proximate history of Physicalism to either explain the mind away or reduce it to the brain from Behaviorism through Identity Theory to Functionalism is laid out as well as the difficulty in establishing the boundaries of Physicalism.The project utilizes conceptual arguments to critique Physicalism in three areas of concern: What is left out? What is assumed? What is causing methodological confusion? The areas of qualia, cognition, intentionality, meaning and personhood are left out. This is demonstrated, in part, by various thought experiments like the inverted spectrum argument, the Chinese nation argument, the zombies' argument, the knowledge argument and the Chinese room argument. The problem of causal closure of the physical is that which is assumed. The ambiguity with respect to method is that which causes confusion.Empirical data from the neurosciences (EEG, ERP, fMRI experiments during meditation; OCD and phobia treatment; placebo and nocebo effect) are used to critically analyze Physicalism with respect to mental states and causation and the analysis of such data points to a close relationship between attention and changes in the brain, and subsequently to the collapse of Physicalism into Epiphenomenalism. Such a metaphysical approach to consciousness is suggested from, and provides a home for, the neurophysical approaches to the origins of consciousness. I present a neuro-quantum perspective using Stapp and Penrose-Hameroff who suggest these origins via neuroscience and quantum physics.As we search for a new scientific paradigm and consequently a new metaphysics that takes into consideration the objective and the subjective, and the inner and the outer, a new philosophy and a new scientific paradigm which incorporates both the first person point of view and the third person "no point of view" data is the need of the hour. / Thesis (PhD) — Boston College, 2011. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Philosophy.

This thesis presents the results of three studies examining the management of migraine in children. First we conducted a systematic review of all clinical trials conducted in children and adolescents of the acute migraine therapy. A meta-analysis of the 26 randomized controlled trials is presented. A single trial with a focus on Emergency Department (ED) management was identified. As such, we then examined current ED practice in two retrospective practice variation studies. The first compared four regional hospital EDs where practice patterns were significantly different between mixed population EDs (both adult and pediatric patients) and the tertiary pediatric ED. The second examined practice variation among ten tertiary pediatric EDs in Canada where significant differences were again observed. Factors that influenced the choice of medications included increasing patient age and the physicians diagnosis of migraine. Important areas of future investigation include: (1) the effectiveness of intravenous fluids alone; and (2) the use of combined medications. / Clinical Epidemiology