177 research outputs found
Exploring the utility and phenomenological experience of group and individual clinical supervision
Volume one comprises of three chapters. The first chapter is a systematic review of research into the utility of group format clinical supervision in the clinical practice of therapists. The second chapter is an empirical paper which explores the phenomenological experience of clinical supervision from the perspective of clinical psychologists. The final chapter is a public dissemination document which provides an accessible summary of the above documents
Dead Houses, Snowflakes and Rose-Tainted Skies: Literary Frameworks for Female Mental Health in Contemporary British Young Adult Fiction
Pneumocystis carinii pneumonia. Cytologic manifestations and rapid diagnosis in routinely prepared papanicolaou-stained preparations
In this study of 28 immunocompromised patients, it was found that Pneumocystis carinii pneumonia could be easily and reliably diagnosed by examination of routinely prepared, Papanicolaou-stained cellular samples obtained by bronchoalveolar lavage, bronchial brushing, and bronchial washing. The distinctive intra-alveolar exudate of pneumocystosis observed in lung biopsy specimens was readily discernible in all of the cellular samples that demonstrated P. carinii by special stains. The exudate was not present in any of the P. carinii-negative samples. Routinely prepared, Papanicolaou-stained cellular samples can be relied upon for the rapid diagnosis of P. carinii pneumonia.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/25965/1/0000031.pd
TNFα depleting therapy improves fertility and animal welfare in TNFα-driven transgenic models of polyarthritis when administered in their routine breeding
Transgenic tumour necrosis factor alpha (TNFα)-driven models of polyarthritis such as the TNFΔARE mouse have proven to be invaluable in delineating aspects of inflammatory disease pathophysiology in humans. Unfortunately, the onset of joint destruction and inflammation in these models represents a significant detriment to breeding management. We examined whether TNFα depleting therapy ‘infliximab’ might represent a significant refinement in routine breeding. Clinical scores of joint inflammation were assessed in TNFΔARE males receiving either infliximab (10 mg/kg) or saline by twice-weekly intraperitoneal injection. Joint histology and bone morphology were assessed by histological analysis and micro-computed tomography (CT), respectively. Analysis of breeding was examined retrospectively in TNFΔARE males prior to, and following, regular introduction of infliximab. Clinical scores of inflammation were significantly reduced in TNFΔARE males receiving infliximab (control 6.6 arbitrary units [AU] ± 0.88 versus infliximab 4.4 AU ± 1.4; P < 0.05), while measures of pannus invasion and bone erosion by histology and micro-CT were markedly reduced. In the breeding groups, TNFΔARE males receiving infliximab injections sired more litters over their breeding lifespan (control 1.69 ± 0.22 versus infliximab 3.00 ± 0.19; P < 0.005). Furthermore, prior to infliximab, TNFΔARE males had a 26% risk of failing to sire any litters. This was reduced to 7% after the introduction of infliximab. This study is the first to report that regular administration of infliximab is effective at suppressing disease activity and improving animal welfare in TNFΔARE animals. In addition, we have shown that infliximab is highly efficacious in improving breeding behaviour and increasing the number of litters sired by TNFΔARE males. </jats:p
The Species Effect:Differential Sphingosine-1-Phosphate Responses in the Bone in Human Versus Mouse
he deterioration of osteoblast-led bone formation and the upregulation of osteoclast-regulated bone resorption are the primary causes of bone diseases, including osteoporosis. Numerous circulating factors play a role in bone homeostasis by regulating osteoblast and osteoclast activity, including the sphingolipid—sphingosine-1-phosphate (S1P). However, to date no comprehensive studies have investigated the impact of S1P activity on human and murine osteoblasts and osteoclasts. We observed species-specific responses to S1P in both osteoblasts and osteoclasts, where S1P stimulated human osteoblast mineralisation and reduced human pre-osteoclast differentiation and mineral resorption, thereby favouring bone formation. The opposite was true for murine osteoblasts and osteoclasts, resulting in more mineral resorption and less mineral deposition. Species-specific differences in osteoblast responses to S1P were potentially explained by differential expression of S1P receptor 1. By contrast, human and murine osteoclasts expressed comparable levels of S1P receptors but showed differential expression patterns of the two sphingosine kinase enzymes responsible for S1P production. Ultimately, we reveal that murine models may not accurately represent how human bone cells will respond to S1P, and thus are not a suitable model for exploring S1P physiology or potential therapeutic agents
Detection and characterisation of bone destruction in murine rheumatoid arthritis using statistical shape models
Rheumatoid arthritis (RA) is an autoimmune disease in which chronic inflammation of the synovial joints can lead to destruction of cartilage and bone. Pre-clinical studies attempt to uncover the underlying causes by emulating the disease in genetically different mouse strains and characterising the nature and severity of bone shape changes as indicators of pathology. This paper presents a fully automated method for obtaining quantitative measurements of bone destruction from volumetric micro-CT images of a mouse hind paw. A statistical model of normal bone morphology derived from a training set of healthy examples serves as a template against which a given pathological sample is compared. Abnormalities in bone shapes are identified as deviations from the model statistics, characterised in terms of type (erosion / formation) and quantified in terms of severity (percentage affected bone area). The colour-coded magnitudes of the deviations superimposed on a three-dimensional rendering of the paw show at a glance the severity of malformations for the individual bones and joints. With quantitative data it is possible to derive population statistics characterising differences in bone malformations for different mouse strains and in different anatomical regions. The method was applied to data acquired from three different mouse strains. The derived quantitative indicators of bone destruction have shown agreement both with the subjective visual scores and with the previous biological findings. This suggests that pathological bone shape changes can be usefully and objectively identified as deviations from the model statistics
Free 25-hydroxyvitamin D is low in obesity, but there are no adverse associations with bone health
Background: The mechanism and clinical significance of low circulating 25-hydroxyvitamin D [25(OH)D] in obese people are unknown. Low total 25(OH)D may be due to low vitamin D–binding proteins (DBPs) or faster metabolic clearance. However, obese people have a higher bone mineral density (BMD), which suggests that low 25(OH)D may not be associated with adverse consequences for bone.
Objective: We sought to determine whether 1) vitamin D metabolism and 2) its association with bone health differ by body weight.
Design: We conducted a cross-sectional observational study of 223 normal-weight, overweight, and obese men and women aged 25–75 y in South Yorkshire, United Kingdom, in the fall and spring. A subgroup of 106 subjects was also assessed in the winter. We used novel techniques, including an immunoassay for free 25(OH)D, a stable isotope for the 25(OH)D3 half-life, and high-resolution quantitative tomography, to make a detailed assessment of vitamin D physiology and bone health.
Results: Serum total 25(OH)D was lower in obese and overweight subjects than in normal-weight subjects in the fall and spring (geometric means: 45.0 and 40.8 compared with 58.6 nmol/L, respectively; P < 0.001) but not in the winter. Serum 25(OH)D was inversely correlated with body mass index (BMI) in the fall and spring and in the winter. Free 25(OH)D and 1,25-dihydroxyvitamin D [1,25(OH)2D] were lower in obese subjects. DBP, the DBP genotype, and the 25(OH)D3 half-life did not differ between BMI groups. Bone turnover was lower, and bone density was higher, in obese people.
Conclusions: Total and free 25(OH)D and 1,25(OH)2D are lower at higher BMI, which cannot be explained by lower DBP or the shorter half-life of 25(OH)D3. We speculate that low 25(OH)D in obesity is due to a greater pool of distribution. Lower 25(OH)D may not reflect at-risk skeletal health in obese people, and BMI should be considered when interpreting serum 25(OH)D as a marker of vitamin D status
Making Global Green Connections: The Importance of Green Chemistry Summer School for Sustainable Development
This GCPSS was held both in Venice and online, celebrating the end of uncertainty surrounding COVID-19-related travel restrictions. 161 postgraduate students attended (50 in-person and 111 online) from 45 different countries. Scientific lectures and other presentations from sponsors and invited speakers delivered engaging talks and motivated participants to do their part in promoting a sustainable future. Postgraduate students exchanged their knowledge through high-quality posters, which revealed their commitment to designing innovative green solutions. Students from diverse backgrounds were able to learn from each other and returned to their home countries inspired to advocate for the achievement of the United Nations Sustainable Development Goals. It was a great opportunity to network with people from a variety of cultures and speak the common language of science. The 14th GCPSS successfully brought together like-minded scientists from around the world who all share the same goal of promoting the field of green chemistry. Hence, we believe that the GCPSS successfully achieved another goal set for the 14th edition. Therefore, the GCPSS must continue in the years to come to tirelessly train young green chemists. So that the world will one day have more science leaders and science advocates with green chemistry minds for building a sustainable society. Wholeheartedly, we were a few young green chemists who got lucky enough to have the opportunity to attend the 14th GCPSS. However, there are thousands, if not millions, of young chemists from around the globe, who still wait to have this once-in-a-lifetime opportunity. Therefore, we hope that more sponsors will join Green Sciences for Sustainable Development Foundation (GSSDF), IUPAC Interdivisional Committee on Green Chemistry for Sustainable Development (ICGCSD), IUPAC, Organization for the Prohibition of Chemical Weapons (OPCW), PhosAgro, Zhejiang NHU Co., Ltd., BRACCO Group, SASOL, and GreeNovator in the future to support the attendance of more young green chemists, particularly from the Global South, to join the next editions of the GCPSS
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