32 research outputs found
The Society for Immunotherapy of Cancer statement on best practices for multiplex immunohistochemistry (IHC) and immunofluorescence (IF) staining and validation.
OBJECTIVES: The interaction between the immune system and tumor cells is an important feature for the prognosis and treatment of cancer. Multiplex immunohistochemistry (mIHC) and multiplex immunofluorescence (mIF) analyses are emerging technologies that can be used to help quantify immune cell subsets, their functional state, and their spatial arrangement within the tumor microenvironment.
METHODS: The Society for Immunotherapy of Cancer (SITC) convened a task force of pathologists and laboratory leaders from academic centers as well as experts from pharmaceutical and diagnostic companies to develop best practice guidelines for the optimization and validation of mIHC/mIF assays across platforms.
RESULTS: Representative outputs and the advantages and disadvantages of mIHC/mIF approaches, such as multiplexed chromogenic IHC, multiplexed immunohistochemical consecutive staining on single slide, mIF (including multispectral approaches), tissue-based mass spectrometry, and digital spatial profiling are discussed.
CONCLUSIONS: mIHC/mIF technologies are becoming standard tools for biomarker studies and are likely to enter routine clinical practice in the near future. Careful assay optimization and validation will help ensure outputs are robust and comparable across laboratories as well as potentially across mIHC/mIF platforms. Quantitative image analysis of mIHC/mIF output and data management considerations will be addressed in a complementary manuscript from this task force
Hypoxanthine-guanine phosophoribosyltransferase (HPRT) deficiency: Lesch-Nyhan syndrome
Deficiency of hypoxanthine-guanine phosphoribosyltransferase (HPRT) activity is an inborn error of purine metabolism associated with uric acid overproduction and a continuum spectrum of neurological manifestations depending on the degree of the enzymatic deficiency. The prevalence is estimated at 1/380,000 live births in Canada, and 1/235,000 live births in Spain. Uric acid overproduction is present inall HPRT-deficient patients and is associated with lithiasis and gout. Neurological manifestations include severe action dystonia, choreoathetosis, ballismus, cognitive and attention deficit, and self-injurious behaviour. The most severe forms are known as Lesch-Nyhan syndrome (patients are normal at birth and diagnosis can be accomplished when psychomotor delay becomes apparent). Partial HPRT-deficient patients present these symptoms with a different intensity, and in the least severe forms symptoms may be unapparent. Megaloblastic anaemia is also associated with the disease. Inheritance of HPRT deficiency is X-linked recessive, thus males are generally affected and heterozygous female are carriers (usually asymptomatic). Human HPRT is encoded by a single structural gene on the long arm of the X chromosome at Xq26. To date, more than 300 disease-associated mutations in the HPRT1 gene have been identified. The diagnosis is based on clinical and biochemical findings (hyperuricemia and hyperuricosuria associated with psychomotor delay), and enzymatic (HPRT activity determination in haemolysate, intact erythrocytes or fibroblasts) and molecular tests. Molecular diagnosis allows faster and more accurate carrier and prenatal diagnosis. Prenatal diagnosis can be performed with amniotic cells obtained by amniocentesis at about 15–18 weeks' gestation, or chorionic villus cells obtained at about 10–12 weeks' gestation. Uric acid overproduction can be managed by allopurinol treatment. Doses must be carefully adjusted to avoid xanthine lithiasis. The lack of precise understanding of the neurological dysfunction has precluded development of useful therapies. Spasticity, when present, and dystonia can be managed with benzodiazepines and gamma-aminobutyric acid inhibitors such as baclofen. Physical rehabilitation, including management of dysarthria and dysphagia, special devices to enable hand control, appropriate walking aids, and a programme of posture management to prevent deformities are recommended. Self-injurious behaviour must be managed by a combination of physical restraints, behavioural and pharmaceutical treatments
Four Regional Marine Biodiversity Studies: Approaches and Contributions to Ecosystem-Based Management
We compare objectives and approaches of four regional studies of marine biodiversity: Gulf of Maine Area Census of Marine Life, Baltic Sea History of Marine Animal Populations, Great Barrier Reef Seabed Biodiversity Project, and Gulf of Mexico Biodiversity Project. Each program was designed as an "ecosystem" scale but was created independently and executed differently. Each lasted 8 to 10 years, including several years to refine program objectives, raise funding, and develop research networks. All resulted in improved baseline data and in new, or revised, data systems. Each contributed to the creation or evolution of interdisciplinary teams, and to regional, national, or international science-management linkages. To date, there have been differing extents of delivery and use of scientific information to and by management, with greatest integration by the program designed around specific management questions. We evaluate each research program's relative emphasis on three principal elements of biodiversity organization: composition, structure, and function. This approach is used to analyze existing ecosystem-wide biodiversity knowledge and to assess what is known and where gaps exist. In all four of these systems and studies, there is a relative paucity of investigation on functional elements of biodiversity, when compared with compositional and structural elements. This is symptomatic of the current state of the science. Substantial investment in understanding one or more biodiversity element(s) will allow issues to be addressed in a timely and more integrative fashion. Evaluating research needs and possible approaches across specific elements of biodiversity organization can facilitate planning of future studies and lead to more effective communication between scientists, managers, and stakeholders. Building a general approach that captures how various studies have focused on different biodiversity elements can also contribute to meta-analyses of worldwide experience in scientific research to support ecosystem-based management
The Culture Concept in The Teaching of History
208 p.Thesis (Educat.D.)--University of Illinois at Urbana-Champaign, 1953.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD
An ethnographic inquiry into the psychosocial care for oncology patients in the community: Healing from the 4Es
PurposeThe aim of this study was to explore how the provision of community care in a cancer support center can help cancer patients and survivors cope with the demands of cancer and its treatment.MethodsA focused ethnographic approach was adopted. Data were collected through participant observations and focus groups with various stakeholders. The data from the focus groups were transcribed verbatim and analyzed using constant comparative analysis.ResultsFour main themes emerged: 1. Enabling users to achieve mental well-being on their coping journey, 2. Empowering users to deal with their uncertainties, 3. Enhancing meaningful nurturing interactions through the design of spaces and colors in the Centre, and 4. Evolving through seeing more value in themselves. These 4Es occurred through intimate human interaction in the Centre, which resulted in psychological renewal and the rebuilding of a sense of self among the users.ConclusionsThis study provides insights on the provision of community support services for cancer patients/users, specifically on how to help them to regain control over their lives, not only through providing services for psychosocial renewal by engaging in intimate human interactions, but also by contributing to an understanding of the effect of the physical environment and space on healing. The results also reveal a virtuous circle of the 4Es as the synergies from the services, activities and the environment in the Centre, which provide a harmonious context for the users in coping with their cancer journey
Selectfluor-promoted regioselective chlorination/bromination of 2-aminopyridines and 2-aminodiazines using LiCl/LiBr
Regulaciin Y Bienestar Econnmico: Evaluaciin De La Regulaciin De Servicios PPblicos Domiciliarios De Acueducto Y Electricidad En Colombia En La DDcada De Los Noventa - Caso Empresas PPblicas De Medellln (Regulation and Economic Welfare: Aqueduct and Household Electricity Public Services Regulation in Colombia During the 90's Decade - The Case of Empresas PPblicas De Medellln )
Identities and agency in religious spheres: a study of British Muslim women's experience
This article examines the ways in which British born South AsianMuslimwomen engage with Islam through study circles, using data drawn from participant observation of, and
interviews with, 25 women in two major cities in northern England. I argue that the religious spaces within which the women participate allow them to assert various identities, as well as agency, as they collectively search to comprehend Islam. In particular, I demonstrate that in traversing these religious spheres, women transformthem
from male dominated sites to spaces wherein feminine, political and cosmopolitan identities are expressed. Scholarship on Islamic feminismin western contexts has focused on visible symbols such as the veil and little attention has been given to the social processes that Muslim women may engage in order to better understand and practise Islam. For the women who formed part of this study, the veil was only one aspect of their religious identity. In examining religious spheres such as the mosque, I argue these are not disembodied sites where only religious rituals are performed, but are created, discursive
spaces and social networks that allow women to feel empowered within British society